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);
400 mono_marshal_lock ();
401 if (delegate_hash_table == NULL)
402 delegate_hash_table = delegate_hash_table_new ();
403 if (delegate_target_locations == NULL) {
404 /* Has to be conservative as the values are not object references */
405 delegate_target_locations = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_CONSERVATIVE_GC);
406 MONO_GC_REGISTER_ROOT (delegate_target_locations);
408 #ifdef HAVE_MOVING_COLLECTOR
409 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
411 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
414 /* This keeps target_loc alive for Boehm */
415 mono_g_hash_table_insert (delegate_target_locations, d->delegate_trampoline, target_loc);
416 mono_marshal_unlock ();
420 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
422 #ifdef HAVE_MOVING_COLLECTOR
430 mono_marshal_lock ();
431 if (delegate_hash_table == NULL)
432 delegate_hash_table = delegate_hash_table_new ();
434 #ifdef HAVE_MOVING_COLLECTOR
435 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
436 mono_marshal_unlock ();
438 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
442 d = g_hash_table_lookup (delegate_hash_table, ftn);
443 mono_marshal_unlock ();
446 /* This is a native function, so construct a delegate for it */
447 static MonoClass *UnmanagedFunctionPointerAttribute;
448 MonoMethodSignature *sig;
450 MonoMarshalSpec **mspecs;
451 MonoCustomAttrInfo *cinfo;
452 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
453 MonoMethod *invoke = mono_get_delegate_invoke (klass);
454 MonoMethodPInvoke piinfo;
457 memset (&piinfo, 0, sizeof (piinfo));
458 if (!UnmanagedFunctionPointerAttribute)
459 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
461 /* The attribute is only available in Net 2.0 */
462 if (UnmanagedFunctionPointerAttribute) {
464 * The pinvoke attributes are stored in a real custom attribute so we have to
467 cinfo = mono_custom_attrs_from_class (klass);
469 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
471 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
474 mono_custom_attrs_free (cinfo);
478 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
479 mono_method_get_marshal_info (invoke, mspecs);
480 /* Freed below so don't alloc from mempool */
481 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
484 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
486 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
488 mono_metadata_free_marshal_spec (mspecs [i]);
492 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
493 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
496 if (d->object.vtable->domain != mono_domain_get ())
497 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
503 mono_delegate_free_ftnptr (MonoDelegate *delegate)
508 delegate_hash_table_remove (delegate);
510 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
512 if (!delegate->target) {
513 /* The wrapper method is shared between delegates -> no need to free it */
518 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
521 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
526 mono_array_to_savearray (MonoArray *array)
531 g_assert_not_reached ();
536 mono_array_to_lparray (MonoArray *array)
541 /* fixme: maybe we need to make a copy */
542 return array->vector;
546 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
548 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
550 if (elclass == mono_defaults.byte_class) {
551 GError *error = NULL;
555 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
558 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
562 g_error_free (error);
565 g_assert_not_reached ();
569 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
571 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
573 if (elclass == mono_defaults.byte_class) {
575 GError *error = NULL;
577 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
579 MonoException *exc = mono_get_exception_argument ("string", error->message);
580 g_error_free (error);
581 mono_raise_exception (exc);
584 memcpy (native_arr, as, MIN (strlen (as), elnum));
587 g_assert_not_reached ();
592 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
594 GError *error = NULL;
604 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
606 if (items_written > mono_stringbuilder_capacity (sb))
607 items_written = mono_stringbuilder_capacity (sb);
610 if (! sb->str || sb->str == sb->cached_str) {
611 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
612 sb->cached_str = NULL;
615 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
616 sb->length = items_written;
618 g_error_free (error);
624 mono_string_utf8_to_builder2 (char *text)
627 MonoStringBuilder *sb;
628 static MonoClass *string_builder_class;
629 static MonoMethod *sb_ctor;
636 if (!string_builder_class) {
637 MonoMethodDesc *desc;
639 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
640 g_assert (string_builder_class);
641 desc = mono_method_desc_new (":.ctor(int)", FALSE);
642 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
644 mono_method_desc_free (desc);
649 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
652 mono_runtime_invoke (sb_ctor, sb, args, &exc);
655 mono_string_utf8_to_builder (sb, text);
661 * FIXME: This routine does not seem to do what it seems to do
662 * the @text is never copied into the string builder
665 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
672 g_assert (mono_string_chars (sb->str) == text);
674 for (len = 0; text [len] != 0; ++len)
681 * mono_string_builder_to_utf8:
682 * @sb: the string builder
684 * Converts to utf8 the contents of the MonoStringBuilder.
686 * Returns: a utf8 string with the contents of the StringBuilder.
688 * The return value must be released with g_free.
691 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
693 GError *error = NULL;
694 gchar *tmp, *res = NULL;
699 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
701 * The sb could have been allocated with the default capacity and be empty.
702 * we need to alloc a buffer of the default capacity in this case.
704 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
705 sb->cached_str = NULL;
708 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
710 g_error_free (error);
711 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
713 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
714 memcpy (res, tmp, sb->length + 1);
722 * mono_string_builder_to_utf16:
723 * @sb: the string builder
725 * Converts to utf16 the contents of the MonoStringBuilder.
727 * Returns: a utf16 string with the contents of the StringBuilder.
729 * The return value must not be freed.
732 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
740 * The stringbuilder might not have ownership of this string. If this is
741 * the case, we must duplicate the string, so that we don't munge immutable
744 if (sb->str == sb->cached_str) {
746 * The sb could have been allocated with the default capacity and be empty.
747 * we need to alloc a buffer of the default capacity in this case.
749 if (sb->str->length == 0)
750 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
752 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
753 sb->cached_str = NULL;
756 return mono_string_chars (sb->str);
760 mono_string_to_lpstr (MonoString *s)
762 #ifdef PLATFORM_WIN32
765 GError *error = NULL;
771 as = CoTaskMemAlloc (1);
776 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
778 MonoException *exc = mono_get_exception_argument ("string", error->message);
779 g_error_free (error);
780 mono_raise_exception(exc);
783 as = CoTaskMemAlloc (len + 1);
784 memcpy (as, tmp, len + 1);
789 return mono_string_to_utf8 (s);
794 mono_string_to_ansibstr (MonoString *string_obj)
796 g_error ("UnmanagedMarshal.BStr is not implemented.");
801 * mono_string_to_byvalstr:
802 * @dst: Where to store the null-terminated utf8 decoded string.
803 * @src: the MonoString to copy.
804 * @size: the maximum number of bytes to copy.
806 * Copies the MonoString pointed to by @src as a utf8 string
807 * into @dst, it copies at most @size bytes into the destination.
810 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
815 g_assert (dst != NULL);
818 memset (dst, 0, size);
822 s = mono_string_to_utf8 (src);
823 len = MIN (size, strlen (s));
826 memcpy (dst, s, len);
831 * mono_string_to_byvalwstr:
832 * @dst: Where to store the null-terminated utf16 decoded string.
833 * @src: the MonoString to copy.
834 * @size: the maximum number of bytes to copy.
836 * Copies the MonoString pointed to by @src as a utf16 string into
837 * @dst, it copies at most @size bytes into the destination (including
838 * a terminating 16-bit zero terminator).
841 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
845 g_assert (dst != NULL);
849 memset (dst, 0, size * 2);
853 len = MIN (size, (mono_string_length (src)));
854 memcpy (dst, mono_string_chars (src), size * 2);
855 if (size <= mono_string_length (src))
857 *((gunichar2 *) dst + len) = 0;
861 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
864 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
865 mono_mb_emit_byte (mb, CEE_LDIND_I);
866 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
867 mono_mb_emit_byte (mb, CEE_ADD);
868 mono_mb_emit_byte (mb, CEE_LDIND_I);
869 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
870 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
871 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
872 pos = mono_mb_emit_branch (mb, branch_code);
877 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
880 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
881 mono_mb_emit_byte (mb, CEE_LDIND_REF);
882 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
883 mono_mb_emit_byte (mb, CEE_LDIND_I4);
884 mono_mb_emit_icon (mb, -1);
885 pos = mono_mb_emit_branch (mb, branch_code);
890 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
892 static int offset = -1;
896 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
898 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
899 mono_mb_emit_byte (mb, CEE_LDIND_REF);
900 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
901 mono_mb_emit_byte (mb, CEE_LDIND_REF);
902 mono_mb_emit_ldflda (mb, offset);
903 mono_mb_emit_byte (mb, CEE_LDIND_U1);
904 mono_mb_emit_icon (mb, mask);
905 mono_mb_emit_byte (mb, CEE_AND);
906 mono_mb_emit_icon (mb, 0);
907 return mono_mb_emit_branch (mb, branch_code);
911 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
913 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
917 mono_type_to_ldind (MonoType *type)
923 switch (type->type) {
927 case MONO_TYPE_BOOLEAN:
941 case MONO_TYPE_FNPTR:
943 case MONO_TYPE_CLASS:
944 case MONO_TYPE_STRING:
945 case MONO_TYPE_OBJECT:
946 case MONO_TYPE_SZARRAY:
947 case MONO_TYPE_ARRAY:
948 return CEE_LDIND_REF;
956 case MONO_TYPE_VALUETYPE:
957 if (type->data.klass->enumtype) {
958 type = mono_class_enum_basetype (type->data.klass);
962 case MONO_TYPE_TYPEDBYREF:
964 case MONO_TYPE_GENERICINST:
965 type = &type->data.generic_class->container_class->byval_arg;
968 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
974 mono_type_to_stind (MonoType *type)
980 switch (type->type) {
983 case MONO_TYPE_BOOLEAN:
995 case MONO_TYPE_FNPTR:
997 case MONO_TYPE_CLASS:
998 case MONO_TYPE_STRING:
999 case MONO_TYPE_OBJECT:
1000 case MONO_TYPE_SZARRAY:
1001 case MONO_TYPE_ARRAY:
1002 return CEE_STIND_REF;
1005 return CEE_STIND_I8;
1007 return CEE_STIND_R4;
1009 return CEE_STIND_R8;
1010 case MONO_TYPE_VALUETYPE:
1011 if (type->data.klass->enumtype) {
1012 type = mono_class_enum_basetype (type->data.klass);
1016 case MONO_TYPE_TYPEDBYREF:
1018 case MONO_TYPE_GENERICINST:
1019 type = &type->data.generic_class->container_class->byval_arg;
1022 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1028 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1031 case MONO_MARSHAL_CONV_BOOL_I4:
1032 mono_mb_emit_ldloc (mb, 1);
1033 mono_mb_emit_ldloc (mb, 0);
1034 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1035 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1036 mono_mb_emit_byte (mb, 3);
1037 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1038 mono_mb_emit_byte (mb, CEE_BR_S);
1039 mono_mb_emit_byte (mb, 1);
1040 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1041 mono_mb_emit_byte (mb, CEE_STIND_I1);
1043 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1044 mono_mb_emit_ldloc (mb, 1);
1045 mono_mb_emit_ldloc (mb, 0);
1046 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1047 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1048 mono_mb_emit_byte (mb, 3);
1049 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1050 mono_mb_emit_byte (mb, CEE_BR_S);
1051 mono_mb_emit_byte (mb, 1);
1052 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1053 mono_mb_emit_byte (mb, CEE_STIND_I1);
1055 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1056 MonoClass *eklass = NULL;
1059 if (type->type == MONO_TYPE_SZARRAY) {
1060 eklass = type->data.klass;
1062 g_assert_not_reached ();
1065 esize = mono_class_native_size (eklass, NULL);
1067 /* create a new array */
1068 mono_mb_emit_ldloc (mb, 1);
1069 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1070 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1071 mono_mb_emit_byte (mb, CEE_STIND_I);
1073 if (eklass->blittable) {
1074 /* copy the elements */
1075 mono_mb_emit_ldloc (mb, 1);
1076 mono_mb_emit_byte (mb, CEE_LDIND_I);
1077 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1078 mono_mb_emit_byte (mb, CEE_ADD);
1079 mono_mb_emit_ldloc (mb, 0);
1080 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1081 mono_mb_emit_byte (mb, CEE_PREFIX1);
1082 mono_mb_emit_byte (mb, CEE_CPBLK);
1085 int array_var, src_var, dst_var, index_var;
1086 guint32 label2, label3;
1088 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1089 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1090 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1093 mono_mb_emit_ldloc (mb, 1);
1094 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1095 mono_mb_emit_stloc (mb, array_var);
1097 /* save the old src pointer */
1098 mono_mb_emit_ldloc (mb, 0);
1099 mono_mb_emit_stloc (mb, src_var);
1100 /* save the old dst pointer */
1101 mono_mb_emit_ldloc (mb, 1);
1102 mono_mb_emit_stloc (mb, dst_var);
1104 /* Emit marshalling loop */
1105 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1106 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1107 mono_mb_emit_stloc (mb, index_var);
1110 label2 = mono_mb_get_label (mb);
1111 mono_mb_emit_ldloc (mb, index_var);
1112 mono_mb_emit_ldloc (mb, array_var);
1113 mono_mb_emit_byte (mb, CEE_LDLEN);
1114 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1116 /* src is already set */
1119 mono_mb_emit_ldloc (mb, array_var);
1120 mono_mb_emit_ldloc (mb, index_var);
1121 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1122 mono_mb_emit_stloc (mb, 1);
1124 /* Do the conversion */
1125 emit_struct_conv (mb, eklass, TRUE);
1128 mono_mb_emit_add_to_local (mb, index_var, 1);
1130 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1132 mono_mb_patch_branch (mb, label3);
1134 /* restore the old src pointer */
1135 mono_mb_emit_ldloc (mb, src_var);
1136 mono_mb_emit_stloc (mb, 0);
1137 /* restore the old dst pointer */
1138 mono_mb_emit_ldloc (mb, dst_var);
1139 mono_mb_emit_stloc (mb, 1);
1143 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1144 MonoClass *eclass = mono_defaults.char_class;
1146 /* create a new array */
1147 mono_mb_emit_ldloc (mb, 1);
1148 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1149 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1150 mono_mb_emit_byte (mb, CEE_STIND_REF);
1152 mono_mb_emit_ldloc (mb, 1);
1153 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1154 mono_mb_emit_ldloc (mb, 0);
1155 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1156 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1157 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1160 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1161 mono_mb_emit_ldloc (mb, 1);
1162 mono_mb_emit_ldloc (mb, 0);
1163 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1164 mono_mb_emit_byte (mb, CEE_STIND_REF);
1166 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1167 mono_mb_emit_ldloc (mb, 1);
1168 mono_mb_emit_ldloc (mb, 0);
1169 mono_mb_emit_icall (mb, mono_string_from_utf16);
1170 mono_mb_emit_byte (mb, CEE_STIND_REF);
1172 case MONO_MARSHAL_CONV_STR_LPTSTR:
1173 mono_mb_emit_ldloc (mb, 1);
1174 mono_mb_emit_ldloc (mb, 0);
1175 mono_mb_emit_byte (mb, CEE_LDIND_I);
1176 #ifdef PLATFORM_WIN32
1177 mono_mb_emit_icall (mb, mono_string_from_utf16);
1179 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1181 mono_mb_emit_byte (mb, CEE_STIND_REF);
1183 case MONO_MARSHAL_CONV_STR_LPSTR:
1184 mono_mb_emit_ldloc (mb, 1);
1185 mono_mb_emit_ldloc (mb, 0);
1186 mono_mb_emit_byte (mb, CEE_LDIND_I);
1187 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1188 mono_mb_emit_byte (mb, CEE_STIND_REF);
1190 case MONO_MARSHAL_CONV_STR_LPWSTR:
1191 mono_mb_emit_ldloc (mb, 1);
1192 mono_mb_emit_ldloc (mb, 0);
1193 mono_mb_emit_byte (mb, CEE_LDIND_I);
1194 mono_mb_emit_icall (mb, mono_string_from_utf16);
1195 mono_mb_emit_byte (mb, CEE_STIND_REF);
1197 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1198 MonoClass *klass = mono_class_from_mono_type (type);
1199 int src_var, dst_var;
1201 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1202 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1204 /* *dst = new object */
1205 mono_mb_emit_ldloc (mb, 1);
1206 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1207 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1208 mono_mb_emit_byte (mb, CEE_STIND_REF);
1210 /* save the old src pointer */
1211 mono_mb_emit_ldloc (mb, 0);
1212 mono_mb_emit_stloc (mb, src_var);
1213 /* save the old dst pointer */
1214 mono_mb_emit_ldloc (mb, 1);
1215 mono_mb_emit_stloc (mb, dst_var);
1217 /* dst = pointer to newly created object data */
1218 mono_mb_emit_ldloc (mb, 1);
1219 mono_mb_emit_byte (mb, CEE_LDIND_I);
1220 mono_mb_emit_icon (mb, sizeof (MonoObject));
1221 mono_mb_emit_byte (mb, CEE_ADD);
1222 mono_mb_emit_stloc (mb, 1);
1224 emit_struct_conv (mb, klass, TRUE);
1226 /* restore the old src pointer */
1227 mono_mb_emit_ldloc (mb, src_var);
1228 mono_mb_emit_stloc (mb, 0);
1229 /* restore the old dst pointer */
1230 mono_mb_emit_ldloc (mb, dst_var);
1231 mono_mb_emit_stloc (mb, 1);
1234 case MONO_MARSHAL_CONV_DEL_FTN: {
1235 MonoClass *klass = mono_class_from_mono_type (type);
1237 mono_mb_emit_ldloc (mb, 1);
1238 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1239 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1240 mono_mb_emit_ldloc (mb, 0);
1241 mono_mb_emit_byte (mb, CEE_LDIND_I);
1242 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1243 mono_mb_emit_byte (mb, CEE_STIND_REF);
1246 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1247 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1251 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1252 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1253 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1254 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1256 #endif /* DISABLE_COM */
1258 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1260 * Passing SafeHandles as ref does not allow the unmanaged code
1261 * to change the SafeHandle value. If the value is changed,
1262 * we should issue a diagnostic exception (NotSupportedException)
1263 * that informs the user that changes to handles in unmanaged code
1266 * Since we currently have no access to the original
1267 * SafeHandle that was used during the marshalling,
1268 * for now we just ignore this, and ignore/discard any
1269 * changes that might have happened to the handle.
1274 case MONO_MARSHAL_CONV_HANDLEREF: {
1276 * Passing HandleRefs in a struct that is ref()ed does not
1277 * copy the values back to the HandleRef
1282 case MONO_MARSHAL_CONV_STR_BSTR:
1283 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1284 case MONO_MARSHAL_CONV_STR_TBSTR:
1285 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1287 g_warning ("marshaling conversion %d not implemented", conv);
1288 g_assert_not_reached ();
1293 conv_to_icall (MonoMarshalConv conv)
1296 case MONO_MARSHAL_CONV_STR_LPWSTR:
1297 return mono_marshal_string_to_utf16;
1298 case MONO_MARSHAL_CONV_LPWSTR_STR:
1299 return mono_string_from_utf16;
1300 case MONO_MARSHAL_CONV_LPSTR_STR:
1301 return mono_string_new_wrapper;
1302 case MONO_MARSHAL_CONV_STR_LPTSTR:
1303 #ifdef PLATFORM_WIN32
1304 return mono_marshal_string_to_utf16;
1306 return mono_string_to_lpstr;
1308 case MONO_MARSHAL_CONV_STR_LPSTR:
1309 return mono_string_to_lpstr;
1310 case MONO_MARSHAL_CONV_STR_BSTR:
1311 return mono_string_to_bstr;
1312 case MONO_MARSHAL_CONV_BSTR_STR:
1313 return mono_string_from_bstr;
1314 case MONO_MARSHAL_CONV_STR_TBSTR:
1315 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1316 return mono_string_to_ansibstr;
1317 case MONO_MARSHAL_CONV_SB_LPSTR:
1318 return mono_string_builder_to_utf8;
1319 case MONO_MARSHAL_CONV_SB_LPTSTR:
1320 #ifdef PLATFORM_WIN32
1321 return mono_string_builder_to_utf16;
1323 return mono_string_builder_to_utf8;
1325 case MONO_MARSHAL_CONV_SB_LPWSTR:
1326 return mono_string_builder_to_utf16;
1327 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1328 return mono_array_to_savearray;
1329 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1330 return mono_array_to_lparray;
1331 case MONO_MARSHAL_CONV_DEL_FTN:
1332 return mono_delegate_to_ftnptr;
1333 case MONO_MARSHAL_CONV_FTN_DEL:
1334 return mono_ftnptr_to_delegate;
1335 case MONO_MARSHAL_CONV_LPSTR_SB:
1336 return mono_string_utf8_to_builder;
1337 case MONO_MARSHAL_CONV_LPTSTR_SB:
1338 #ifdef PLATFORM_WIN32
1339 return mono_string_utf16_to_builder;
1341 return mono_string_utf8_to_builder;
1343 case MONO_MARSHAL_CONV_LPWSTR_SB:
1344 return mono_string_utf16_to_builder;
1345 case MONO_MARSHAL_FREE_ARRAY:
1346 return mono_marshal_free_array;
1347 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1348 return mono_string_to_byvalstr;
1349 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1350 return mono_string_to_byvalwstr;
1352 g_assert_not_reached ();
1359 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1364 case MONO_MARSHAL_CONV_BOOL_I4:
1365 mono_mb_emit_ldloc (mb, 1);
1366 mono_mb_emit_ldloc (mb, 0);
1367 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1368 mono_mb_emit_byte (mb, CEE_STIND_I4);
1370 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1371 mono_mb_emit_ldloc (mb, 1);
1372 mono_mb_emit_ldloc (mb, 0);
1373 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1374 mono_mb_emit_byte (mb, CEE_NEG);
1375 mono_mb_emit_byte (mb, CEE_STIND_I2);
1377 case MONO_MARSHAL_CONV_STR_LPWSTR:
1378 case MONO_MARSHAL_CONV_STR_LPSTR:
1379 case MONO_MARSHAL_CONV_STR_LPTSTR:
1380 case MONO_MARSHAL_CONV_STR_BSTR:
1381 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1382 case MONO_MARSHAL_CONV_STR_TBSTR: {
1385 /* free space if free == true */
1386 mono_mb_emit_ldloc (mb, 2);
1387 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1388 mono_mb_emit_ldloc (mb, 1);
1389 mono_mb_emit_byte (mb, CEE_LDIND_I);
1390 mono_mb_emit_icall (mb, g_free);
1391 mono_mb_patch_short_branch (mb, pos);
1393 mono_mb_emit_ldloc (mb, 1);
1394 mono_mb_emit_ldloc (mb, 0);
1395 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1396 mono_mb_emit_icall (mb, conv_to_icall (conv));
1397 mono_mb_emit_byte (mb, CEE_STIND_I);
1400 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1401 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1402 case MONO_MARSHAL_CONV_DEL_FTN:
1403 mono_mb_emit_ldloc (mb, 1);
1404 mono_mb_emit_ldloc (mb, 0);
1405 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1406 mono_mb_emit_icall (mb, conv_to_icall (conv));
1407 mono_mb_emit_byte (mb, CEE_STIND_I);
1409 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1410 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1413 mono_mb_emit_ldloc (mb, 1); /* dst */
1414 mono_mb_emit_ldloc (mb, 0);
1415 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1416 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1417 mono_mb_emit_icall (mb, conv_to_icall (conv));
1420 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1421 MonoClass *eklass = NULL;
1424 if (type->type == MONO_TYPE_SZARRAY) {
1425 eklass = type->data.klass;
1427 g_assert_not_reached ();
1430 if (eklass->valuetype)
1431 esize = mono_class_native_size (eklass, NULL);
1433 esize = sizeof (gpointer);
1435 mono_mb_emit_ldloc (mb, 0);
1436 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1437 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1439 if (eklass->blittable) {
1440 mono_mb_emit_ldloc (mb, 1);
1441 mono_mb_emit_ldloc (mb, 0);
1442 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1443 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1444 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1445 mono_mb_emit_byte (mb, CEE_PREFIX1);
1446 mono_mb_emit_byte (mb, CEE_CPBLK);
1448 int array_var, src_var, dst_var, index_var;
1449 guint32 label2, label3;
1451 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1452 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1453 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1456 mono_mb_emit_ldloc (mb, 0);
1457 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1458 mono_mb_emit_stloc (mb, array_var);
1460 /* save the old src pointer */
1461 mono_mb_emit_ldloc (mb, 0);
1462 mono_mb_emit_stloc (mb, src_var);
1463 /* save the old dst pointer */
1464 mono_mb_emit_ldloc (mb, 1);
1465 mono_mb_emit_stloc (mb, dst_var);
1467 /* Emit marshalling loop */
1468 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1469 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1470 mono_mb_emit_stloc (mb, index_var);
1473 label2 = mono_mb_get_label (mb);
1474 mono_mb_emit_ldloc (mb, index_var);
1475 mono_mb_emit_ldloc (mb, array_var);
1476 mono_mb_emit_byte (mb, CEE_LDLEN);
1477 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1480 mono_mb_emit_ldloc (mb, array_var);
1481 mono_mb_emit_ldloc (mb, index_var);
1482 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1483 mono_mb_emit_stloc (mb, 0);
1485 /* dst is already set */
1487 /* Do the conversion */
1488 emit_struct_conv (mb, eklass, FALSE);
1491 mono_mb_emit_add_to_local (mb, index_var, 1);
1493 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1495 mono_mb_patch_branch (mb, label3);
1497 /* restore the old src pointer */
1498 mono_mb_emit_ldloc (mb, src_var);
1499 mono_mb_emit_stloc (mb, 0);
1500 /* restore the old dst pointer */
1501 mono_mb_emit_ldloc (mb, dst_var);
1502 mono_mb_emit_stloc (mb, 1);
1505 mono_mb_patch_branch (mb, pos);
1508 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1509 mono_mb_emit_ldloc (mb, 0);
1510 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1511 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_ldloc (mb, 0);
1515 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1516 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1517 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1518 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1519 mono_mb_patch_short_branch (mb, pos);
1522 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1523 int src_var, dst_var;
1525 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1526 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1528 mono_mb_emit_ldloc (mb, 0);
1529 mono_mb_emit_byte (mb, CEE_LDIND_I);
1530 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1532 /* save the old src pointer */
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_stloc (mb, src_var);
1535 /* save the old dst pointer */
1536 mono_mb_emit_ldloc (mb, 1);
1537 mono_mb_emit_stloc (mb, dst_var);
1539 /* src = pointer to object data */
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_byte (mb, CEE_LDIND_I);
1542 mono_mb_emit_icon (mb, sizeof (MonoObject));
1543 mono_mb_emit_byte (mb, CEE_ADD);
1544 mono_mb_emit_stloc (mb, 0);
1546 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1548 /* restore the old src pointer */
1549 mono_mb_emit_ldloc (mb, src_var);
1550 mono_mb_emit_stloc (mb, 0);
1551 /* restore the old dst pointer */
1552 mono_mb_emit_ldloc (mb, dst_var);
1553 mono_mb_emit_stloc (mb, 1);
1555 mono_mb_patch_branch (mb, pos);
1560 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1561 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1562 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1563 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1565 #endif /* DISABLE_COM */
1567 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1568 int dar_release_slot, pos;
1570 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1573 * The following is ifdefed-out, because I have no way of doing the
1574 * DangerousRelease when destroying the structure
1577 /* set release = false */
1578 mono_mb_emit_icon (mb, 0);
1579 mono_mb_emit_stloc (mb, dar_release_slot);
1580 if (!sh_dangerous_add_ref)
1581 init_safe_handle ();
1583 /* safehandle.DangerousAddRef (ref release) */
1584 mono_mb_emit_ldloc (mb, 0); /* the source */
1585 mono_mb_emit_byte (mb, CEE_LDIND_I);
1586 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1587 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1589 mono_mb_emit_ldloc (mb, 0);
1590 mono_mb_emit_byte (mb, CEE_LDIND_I);
1591 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1592 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1593 mono_mb_patch_branch (mb, pos);
1595 /* Pull the handle field from SafeHandle */
1596 mono_mb_emit_ldloc (mb, 1);
1597 mono_mb_emit_ldloc (mb, 0);
1598 mono_mb_emit_byte (mb, CEE_LDIND_I);
1599 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1600 mono_mb_emit_byte (mb, CEE_LDIND_I);
1601 mono_mb_emit_byte (mb, CEE_STIND_I);
1605 case MONO_MARSHAL_CONV_HANDLEREF: {
1606 mono_mb_emit_ldloc (mb, 1);
1607 mono_mb_emit_ldloc (mb, 0);
1608 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1609 mono_mb_emit_byte (mb, CEE_ADD);
1610 mono_mb_emit_byte (mb, CEE_LDIND_I);
1611 mono_mb_emit_byte (mb, CEE_STIND_I);
1616 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1617 MonoException *exc = mono_get_exception_not_implemented (msg);
1620 mono_raise_exception (exc);
1626 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1628 MonoMarshalType *info;
1632 emit_struct_conv(mb, klass->parent, to_object);
1634 info = mono_marshal_load_type_info (klass);
1636 if (info->native_size == 0)
1639 if (klass->blittable) {
1640 int msize = mono_class_value_size (klass, NULL);
1641 g_assert (msize == info->native_size);
1642 mono_mb_emit_ldloc (mb, 1);
1643 mono_mb_emit_ldloc (mb, 0);
1644 mono_mb_emit_icon (mb, msize);
1645 mono_mb_emit_byte (mb, CEE_PREFIX1);
1646 mono_mb_emit_byte (mb, CEE_CPBLK);
1648 mono_mb_emit_add_to_local (mb, 0, msize);
1649 mono_mb_emit_add_to_local (mb, 1, msize);
1653 for (i = 0; i < info->num_fields; i++) {
1654 MonoMarshalNative ntype;
1655 MonoMarshalConv conv;
1656 MonoType *ftype = info->fields [i].field->type;
1659 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1661 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1664 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1667 msize = klass->instance_size - info->fields [i].field->offset;
1668 usize = info->native_size - info->fields [i].offset;
1670 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1671 usize = info->fields [i + 1].offset - info->fields [i].offset;
1674 if (klass != mono_defaults.safehandle_class){
1676 * FIXME: Should really check for usize==0 and msize>0, but we apply
1677 * the layout to the managed structure as well.
1680 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1681 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1682 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1683 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1684 "reference field at the same offset as another field.",
1685 mono_type_full_name (&klass->byval_arg));
1688 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1689 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
1690 mono_type_full_name (&klass->byval_arg));
1695 case MONO_MARSHAL_CONV_NONE: {
1698 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1699 ftype->type == MONO_TYPE_U) {
1700 mono_mb_emit_ldloc (mb, 1);
1701 mono_mb_emit_ldloc (mb, 0);
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 mono_mb_emit_byte (mb, CEE_STIND_I);
1714 case MONO_TYPE_BOOLEAN:
1717 case MONO_TYPE_CHAR:
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1726 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1728 case MONO_TYPE_VALUETYPE: {
1729 int src_var, dst_var;
1731 if (ftype->data.klass->enumtype) {
1732 ftype = mono_class_enum_basetype (ftype->data.klass);
1736 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1737 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1739 /* save the old src pointer */
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_stloc (mb, src_var);
1742 /* save the old dst pointer */
1743 mono_mb_emit_ldloc (mb, 1);
1744 mono_mb_emit_stloc (mb, dst_var);
1746 emit_struct_conv (mb, ftype->data.klass, to_object);
1748 /* restore the old src pointer */
1749 mono_mb_emit_ldloc (mb, src_var);
1750 mono_mb_emit_stloc (mb, 0);
1751 /* restore the old dst pointer */
1752 mono_mb_emit_ldloc (mb, dst_var);
1753 mono_mb_emit_stloc (mb, 1);
1756 case MONO_TYPE_OBJECT: {
1757 mono_init_com_types ();
1759 static MonoMethod *variant_clear = NULL;
1760 static MonoMethod *get_object_for_native_variant = NULL;
1763 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1764 if (!get_object_for_native_variant)
1765 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1766 mono_mb_emit_ldloc (mb, 1);
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1769 mono_mb_emit_byte (mb, CEE_STIND_REF);
1771 mono_mb_emit_ldloc (mb, 0);
1772 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1775 static MonoMethod *get_native_variant_for_object = NULL;
1777 if (!get_native_variant_for_object)
1778 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1780 mono_mb_emit_ldloc (mb, 0);
1781 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1782 mono_mb_emit_ldloc (mb, 1);
1783 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1789 g_warning ("marshaling type %02x not implemented", ftype->type);
1790 g_assert_not_reached ();
1795 int src_var, dst_var;
1797 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1798 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1800 /* save the old src pointer */
1801 mono_mb_emit_ldloc (mb, 0);
1802 mono_mb_emit_stloc (mb, src_var);
1803 /* save the old dst pointer */
1804 mono_mb_emit_ldloc (mb, 1);
1805 mono_mb_emit_stloc (mb, dst_var);
1808 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1810 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1812 /* restore the old src pointer */
1813 mono_mb_emit_ldloc (mb, src_var);
1814 mono_mb_emit_stloc (mb, 0);
1815 /* restore the old dst pointer */
1816 mono_mb_emit_ldloc (mb, dst_var);
1817 mono_mb_emit_stloc (mb, 1);
1822 mono_mb_emit_add_to_local (mb, 0, usize);
1823 mono_mb_emit_add_to_local (mb, 1, msize);
1825 mono_mb_emit_add_to_local (mb, 0, msize);
1826 mono_mb_emit_add_to_local (mb, 1, usize);
1832 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1834 /* Call DestroyStructure */
1835 /* FIXME: Only do this if needed */
1836 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1837 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1838 mono_mb_emit_ldloc (mb, struct_var);
1839 mono_mb_emit_icall (mb, mono_struct_delete_old);
1843 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1847 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1848 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1849 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1852 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1854 mono_mb_emit_icall (mb, checkpoint_func);
1856 mono_mb_patch_branch (mb, pos_noabort);
1860 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1862 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1865 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1869 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1871 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1875 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1877 emit_thread_interrupt_checkpoint (mb);
1880 static MonoAsyncResult *
1881 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1883 MonoMethodMessage *msg;
1884 MonoDelegate *async_callback;
1888 MonoMethod *method = NULL, *method2 = NULL;
1890 g_assert (delegate);
1892 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1894 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1895 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1897 /* If the target is a proxy, make a direct call. Is proxy's work
1898 // to make the call asynchronous.
1900 MonoAsyncResult *ares;
1902 MonoArray *out_args;
1904 method = delegate->method;
1906 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1907 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1908 g_assert(handle != NULL);
1909 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
1910 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
1911 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
1912 MONO_OBJECT_SETREF (msg, async_result, ares);
1913 msg->call_type = CallType_BeginInvoke;
1915 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1920 klass = delegate->object.vtable->klass;
1922 method = mono_get_delegate_invoke (klass);
1923 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
1926 g_assert (method != NULL);
1928 im = mono_get_delegate_invoke (method->klass);
1929 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1931 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1935 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1937 int i, params_var, tmp_var;
1939 /* allocate local (pointer) *params[] */
1940 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1941 /* allocate local (pointer) tmp */
1942 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1944 /* alloate space on stack to store an array of pointers to the arguments */
1945 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1946 mono_mb_emit_byte (mb, CEE_PREFIX1);
1947 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1948 mono_mb_emit_stloc (mb, params_var);
1951 mono_mb_emit_ldloc (mb, params_var);
1952 mono_mb_emit_stloc (mb, tmp_var);
1954 if (save_this && sig->hasthis) {
1955 mono_mb_emit_ldloc (mb, tmp_var);
1956 mono_mb_emit_ldarg_addr (mb, 0);
1957 mono_mb_emit_byte (mb, CEE_STIND_I);
1958 /* tmp = tmp + sizeof (gpointer) */
1959 if (sig->param_count)
1960 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1964 for (i = 0; i < sig->param_count; i++) {
1965 mono_mb_emit_ldloc (mb, tmp_var);
1966 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1967 mono_mb_emit_byte (mb, CEE_STIND_I);
1968 /* tmp = tmp + sizeof (gpointer) */
1969 if (i < (sig->param_count - 1))
1970 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1977 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1981 GString *res = g_string_new ("");
1984 g_string_append (res, prefix);
1985 g_string_append_c (res, '_');
1988 mono_type_get_desc (res, sig->ret, FALSE);
1991 g_string_append (res, "__this__");
1993 for (i = 0; i < sig->param_count; ++i) {
1994 g_string_append_c (res, '_');
1995 mono_type_get_desc (res, sig->params [i], FALSE);
1998 g_string_free (res, FALSE);
2003 * mono_marshal_get_string_encoding:
2005 * Return the string encoding which should be used for a given parameter.
2007 static MonoMarshalNative
2008 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2010 /* First try the parameter marshal info */
2012 if (spec->native == MONO_NATIVE_LPARRAY) {
2013 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2014 return spec->data.array_data.elem_type;
2017 return spec->native;
2021 return MONO_NATIVE_LPSTR;
2023 /* Then try the method level marshal info */
2024 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2025 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2026 return MONO_NATIVE_LPSTR;
2027 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2028 return MONO_NATIVE_LPWSTR;
2029 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2030 #ifdef PLATFORM_WIN32
2031 return MONO_NATIVE_LPWSTR;
2033 return MONO_NATIVE_LPSTR;
2036 return MONO_NATIVE_LPSTR;
2040 static MonoMarshalConv
2041 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2043 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2046 case MONO_NATIVE_LPWSTR:
2047 return MONO_MARSHAL_CONV_STR_LPWSTR;
2048 case MONO_NATIVE_LPSTR:
2049 return MONO_MARSHAL_CONV_STR_LPSTR;
2050 case MONO_NATIVE_LPTSTR:
2051 return MONO_MARSHAL_CONV_STR_LPTSTR;
2052 case MONO_NATIVE_BSTR:
2053 return MONO_MARSHAL_CONV_STR_BSTR;
2059 static MonoMarshalConv
2060 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2062 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2065 case MONO_NATIVE_LPWSTR:
2066 return MONO_MARSHAL_CONV_SB_LPWSTR;
2068 case MONO_NATIVE_LPSTR:
2069 return MONO_MARSHAL_CONV_SB_LPSTR;
2071 case MONO_NATIVE_LPTSTR:
2072 return MONO_MARSHAL_CONV_SB_LPTSTR;
2079 static MonoMarshalConv
2080 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2082 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2087 case MONO_NATIVE_LPWSTR:
2089 return MONO_MARSHAL_CONV_LPWSTR_STR;
2090 case MONO_NATIVE_LPSTR:
2091 return MONO_MARSHAL_CONV_LPSTR_STR;
2092 case MONO_NATIVE_LPTSTR:
2093 return MONO_MARSHAL_CONV_LPTSTR_STR;
2094 case MONO_NATIVE_BSTR:
2095 return MONO_MARSHAL_CONV_BSTR_STR;
2101 static MonoMarshalConv
2102 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2104 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2109 case MONO_NATIVE_LPWSTR:
2111 * mono_string_builder_to_utf16 does not allocate a
2112 * new buffer, so no need to free it.
2115 return MONO_MARSHAL_CONV_LPWSTR_SB;
2116 case MONO_NATIVE_LPSTR:
2117 return MONO_MARSHAL_CONV_LPSTR_SB;
2119 case MONO_NATIVE_LPTSTR:
2120 return MONO_MARSHAL_CONV_LPTSTR_SB;
2128 * Return whenever a field of a native structure or an array member needs to
2132 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2134 MonoMarshalNative encoding;
2135 MonoMarshalConv conv;
2138 case MONO_TYPE_VALUETYPE:
2139 /* FIXME: Optimize this */
2141 case MONO_TYPE_OBJECT:
2142 case MONO_TYPE_CLASS:
2143 if (t->data.klass == mono_defaults.stringbuilder_class) {
2145 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2149 case MONO_TYPE_STRING:
2150 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2151 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2158 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2161 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2164 mono_marshal_lock ();
2167 g_hash_table_new (hash_func, equal_func);
2168 mono_memory_barrier ();
2171 mono_marshal_unlock ();
2177 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2179 return get_cache (var, hash_func, equal_func);
2183 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2187 mono_marshal_lock ();
2188 res = g_hash_table_lookup (cache, key);
2189 mono_marshal_unlock ();
2194 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2198 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2201 datav = ((MonoMethodWrapper *)method)->method_data;
2205 /* Create the method from the builder and place it in the cache */
2207 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2208 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2213 mono_marshal_lock ();
2214 res = g_hash_table_lookup (cache, key);
2215 mono_marshal_unlock ();
2218 newm = mono_mb_create_method (mb, sig, max_stack);
2219 mono_marshal_lock ();
2220 res = g_hash_table_lookup (cache, key);
2223 g_hash_table_insert (cache, key, res);
2224 mono_marshal_method_set_wrapper_data (res, key);
2225 mono_marshal_unlock ();
2227 mono_marshal_unlock ();
2228 mono_free_method (newm);
2236 static inline MonoMethod*
2237 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2239 MonoMethod *res = NULL;
2240 MonoRemotingMethods *wrps;
2242 mono_marshal_lock ();
2243 if (method->klass->image->remoting_invoke_cache)
2244 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2249 switch (wrapper_type) {
2250 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2251 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2252 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2253 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2257 /* it is important to do the unlock after the load from wrps, since in
2258 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2259 * to take the loader lock and some other thread may set the fields.
2261 mono_marshal_unlock ();
2265 /* Create the method from the builder and place it in the cache */
2266 static inline MonoMethod*
2267 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2268 MonoMethodSignature *sig, int max_stack)
2270 MonoMethod **res = NULL;
2271 MonoRemotingMethods *wrps;
2272 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2274 mono_marshal_lock ();
2275 wrps = g_hash_table_lookup (cache, key);
2277 wrps = g_new0 (MonoRemotingMethods, 1);
2278 g_hash_table_insert (cache, key, wrps);
2281 switch (mb->method->wrapper_type) {
2282 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2283 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2284 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2285 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2286 default: g_assert_not_reached (); break;
2288 mono_marshal_unlock ();
2292 newm = mono_mb_create_method (mb, sig, max_stack);
2294 mono_marshal_lock ();
2297 mono_marshal_method_set_wrapper_data (*res, key);
2298 mono_marshal_unlock ();
2300 mono_marshal_unlock ();
2301 mono_free_method (newm);
2309 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2313 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2316 res = mono_method_get_wrapper_data (wrapper, 1);
2323 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2325 MonoMethodSignature *sig;
2326 MonoMethodBuilder *mb;
2332 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2333 !strcmp (method->name, "BeginInvoke"));
2335 sig = mono_signature_no_pinvoke (method);
2337 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2338 (GHashFunc)mono_signature_hash,
2339 (GCompareFunc)mono_metadata_signature_equal);
2340 if ((res = mono_marshal_find_in_cache (cache, sig)))
2343 g_assert (sig->hasthis);
2345 name = mono_signature_to_name (sig, "begin_invoke");
2346 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2349 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2351 mono_mb_emit_ldarg (mb, 0);
2352 mono_mb_emit_ldloc (mb, params_var);
2353 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2354 mono_mb_emit_byte (mb, CEE_RET);
2356 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2362 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2364 MonoDomain *domain = mono_domain_get ();
2365 MonoAsyncResult *ares;
2366 MonoMethod *method = NULL;
2367 MonoMethodSignature *sig;
2368 MonoMethodMessage *msg;
2369 MonoObject *res, *exc;
2370 MonoArray *out_args;
2373 g_assert (delegate);
2375 if (!delegate->method_info) {
2376 g_assert (delegate->method);
2377 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2380 if (!delegate->method_info || !delegate->method_info->method)
2381 g_assert_not_reached ();
2383 klass = delegate->object.vtable->klass;
2385 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2386 g_assert (method != NULL);
2388 sig = mono_signature_no_pinvoke (method);
2390 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2392 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2394 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."));
2396 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
2397 mono_raise_exception (mono_get_exception_invalid_operation (
2398 "The IAsyncResult object provided does not match this delegate."));
2402 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2403 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2404 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2405 mono_message_init (domain, msg, delegate->method_info, NULL);
2406 msg->call_type = CallType_EndInvoke;
2407 MONO_OBJECT_SETREF (msg, async_result, ares);
2408 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2410 res = mono_thread_pool_finish (ares, &out_args, &exc);
2414 if (((MonoException*)exc)->stack_trace) {
2415 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2417 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2419 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2422 mono_raise_exception ((MonoException*)exc);
2425 mono_method_return_message_restore (method, params, out_args);
2430 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2432 MonoType *t = mono_type_get_underlying_type (return_type);
2434 if (return_type->byref)
2435 return_type = &mono_defaults.int_class->byval_arg;
2438 case MONO_TYPE_VOID:
2439 g_assert_not_reached ();
2442 case MONO_TYPE_STRING:
2443 case MONO_TYPE_CLASS:
2444 case MONO_TYPE_OBJECT:
2445 case MONO_TYPE_ARRAY:
2446 case MONO_TYPE_SZARRAY:
2450 case MONO_TYPE_BOOLEAN:
2453 case MONO_TYPE_CHAR:
2463 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2464 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2466 case MONO_TYPE_GENERICINST:
2467 if (!mono_type_generic_inst_is_valuetype (return_type))
2470 case MONO_TYPE_VALUETYPE: {
2471 MonoClass *klass = mono_class_from_mono_type (return_type);
2472 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2473 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2477 g_warning ("type 0x%x not handled", return_type->type);
2478 g_assert_not_reached ();
2481 mono_mb_emit_byte (mb, CEE_RET);
2485 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2487 MonoMethodSignature *sig;
2488 MonoMethodBuilder *mb;
2494 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2495 !strcmp (method->name, "EndInvoke"));
2497 sig = mono_signature_no_pinvoke (method);
2499 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2500 (GHashFunc)mono_signature_hash,
2501 (GCompareFunc)mono_metadata_signature_equal);
2502 if ((res = mono_marshal_find_in_cache (cache, sig)))
2505 g_assert (sig->hasthis);
2507 name = mono_signature_to_name (sig, "end_invoke");
2508 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2511 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2513 mono_mb_emit_ldarg (mb, 0);
2514 mono_mb_emit_ldloc (mb, params_var);
2515 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2517 if (sig->ret->type == MONO_TYPE_VOID) {
2518 mono_mb_emit_byte (mb, CEE_POP);
2519 mono_mb_emit_byte (mb, CEE_RET);
2521 mono_mb_emit_restore_result (mb, sig->ret);
2523 res = mono_mb_create_and_cache (cache, sig,
2524 mb, sig, sig->param_count + 16);
2531 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2533 MonoMethodMessage *msg;
2534 MonoTransparentProxy *this;
2535 MonoObject *res, *exc;
2536 MonoArray *out_args;
2538 this = *((MonoTransparentProxy **)params [0]);
2541 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2543 /* skip the this pointer */
2546 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2549 MonoMethodSignature *sig = mono_method_signature (method);
2550 int count = sig->param_count;
2551 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2553 for (i=0; i<count; i++) {
2554 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2555 if (class->valuetype) {
2556 if (sig->params [i]->byref) {
2557 mparams[i] = *((gpointer *)params [i]);
2559 /* runtime_invoke expects a boxed instance */
2560 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2561 mparams[i] = mono_nullable_box (params [i], class);
2563 mparams[i] = params [i];
2566 mparams[i] = *((gpointer**)params [i]);
2570 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2573 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2575 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2578 mono_raise_exception ((MonoException *)exc);
2580 mono_method_return_message_restore (method, params, out_args);
2586 mono_marshal_get_remoting_invoke (MonoMethod *method)
2588 MonoMethodSignature *sig;
2589 MonoMethodBuilder *mb;
2595 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2598 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2599 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
2601 return mono_cominterop_get_invoke (method);
2603 g_assert_not_reached ();
2607 sig = mono_signature_no_pinvoke (method);
2609 /* we cant remote methods without this pointer */
2613 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2616 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2617 mb->method->save_lmf = 1;
2619 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2621 mono_mb_emit_ptr (mb, method);
2622 mono_mb_emit_ldloc (mb, params_var);
2623 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2624 emit_thread_interrupt_checkpoint (mb);
2626 if (sig->ret->type == MONO_TYPE_VOID) {
2627 mono_mb_emit_byte (mb, CEE_POP);
2628 mono_mb_emit_byte (mb, CEE_RET);
2630 mono_mb_emit_restore_result (mb, sig->ret);
2633 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2639 /* mono_get_xdomain_marshal_type()
2640 * Returns the kind of marshalling that a type needs for cross domain calls.
2642 static MonoXDomainMarshalType
2643 mono_get_xdomain_marshal_type (MonoType *t)
2646 case MONO_TYPE_VOID:
2647 g_assert_not_reached ();
2651 case MONO_TYPE_BOOLEAN:
2654 case MONO_TYPE_CHAR:
2661 return MONO_MARSHAL_NONE;
2662 case MONO_TYPE_STRING:
2663 return MONO_MARSHAL_COPY;
2664 case MONO_TYPE_ARRAY:
2665 case MONO_TYPE_SZARRAY: {
2666 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2667 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2668 return MONO_MARSHAL_COPY;
2673 return MONO_MARSHAL_SERIALIZE;
2677 /* mono_marshal_xdomain_copy_value
2678 * Makes a copy of "val" suitable for the current domain.
2681 mono_marshal_xdomain_copy_value (MonoObject *val)
2684 if (val == NULL) return NULL;
2686 domain = mono_domain_get ();
2688 switch (mono_object_class (val)->byval_arg.type) {
2689 case MONO_TYPE_VOID:
2690 g_assert_not_reached ();
2694 case MONO_TYPE_BOOLEAN:
2697 case MONO_TYPE_CHAR:
2703 case MONO_TYPE_R8: {
2704 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2706 case MONO_TYPE_STRING: {
2707 MonoString *str = (MonoString *) val;
2708 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2710 case MONO_TYPE_ARRAY:
2711 case MONO_TYPE_SZARRAY: {
2713 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2714 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2715 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2716 if (mt == MONO_MARSHAL_COPY) {
2717 int i, len = mono_array_length (acopy);
2718 for (i = 0; i < len; i++) {
2719 MonoObject *item = mono_array_get (acopy, gpointer, i);
2720 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2723 return (MonoObject *) acopy;
2727 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2728 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2729 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2730 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2731 newsb->length = oldsb->length;
2732 newsb->max_capacity = (gint32)0x7fffffff;
2733 return (MonoObject *) newsb;
2738 /* mono_marshal_xdomain_copy_out_value()
2739 * Copies the contents of the src instance into the dst instance. src and dst
2740 * must have the same type, and if they are arrays, the same size.
2743 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2745 if (src == NULL || dst == NULL) return;
2747 g_assert (mono_object_class (src) == mono_object_class (dst));
2749 switch (mono_object_class (src)->byval_arg.type) {
2750 case MONO_TYPE_ARRAY:
2751 case MONO_TYPE_SZARRAY: {
2752 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2753 if (mt == MONO_MARSHAL_SERIALIZE) return;
2754 if (mt == MONO_MARSHAL_COPY) {
2755 int i, len = mono_array_length ((MonoArray *)dst);
2756 for (i = 0; i < len; i++) {
2757 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2758 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2761 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2767 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2768 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2769 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2771 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)));
2772 dst_sb->cached_str = NULL;
2773 dst_sb->length = src_sb->length;
2778 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2780 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2781 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2785 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2787 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2790 /* mono_marshal_supports_fast_xdomain()
2791 * Returns TRUE if the method can use the fast xdomain wrapper.
2794 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2796 return !method->klass->contextbound &&
2797 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2801 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2803 MonoDomain *current_domain = mono_domain_get ();
2804 MonoDomain *domain = mono_domain_get_by_id (id);
2806 if (!domain || !mono_domain_set (domain, FALSE))
2807 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2810 mono_thread_push_appdomain_ref (domain);
2812 mono_thread_pop_appdomain_ref ();
2814 return current_domain->domain_id;
2818 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
2820 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
2823 /* mono_marshal_emit_load_domain_method ()
2824 * Loads into the stack a pointer to the code of the provided method for
2825 * the current domain.
2828 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
2830 /* We need a pointer to the method for the running domain (not the domain
2831 * that compiles the method).
2833 mono_mb_emit_ptr (mb, method);
2834 mono_mb_emit_icall (mb, mono_compile_method);
2837 /* mono_marshal_check_domain_image ()
2838 * Returns TRUE if the image is loaded in the specified
2839 * application domain.
2842 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
2847 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2851 mono_domain_assemblies_lock (domain);
2852 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
2854 if (ass->image == image)
2857 mono_domain_assemblies_unlock (domain);
2862 /* mono_marshal_get_xappdomain_dispatch ()
2863 * Generates a method that dispatches a method call from another domain into
2864 * the current domain.
2867 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
2869 MonoMethodSignature *sig, *csig;
2870 MonoMethodBuilder *mb;
2872 int i, j, param_index, copy_locals_base;
2873 MonoClass *ret_class = NULL;
2874 int loc_array=0, loc_return=0, loc_serialized_exc=0;
2875 MonoExceptionClause *main_clause;
2877 gboolean copy_return;
2879 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
2882 sig = mono_method_signature (method);
2883 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
2886 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
2887 csig->params [j++] = &mono_defaults.object_class->byval_arg;
2888 csig->params [j++] = &byte_array_class->this_arg;
2889 csig->params [j++] = &byte_array_class->this_arg;
2890 for (i = 0; i < sig->param_count; i++) {
2891 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
2892 csig->params [j++] = sig->params [i];
2895 csig->ret = sig->ret;
2897 csig->ret = &mono_defaults.void_class->byval_arg;
2899 csig->hasthis = FALSE;
2901 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
2902 mb->method->save_lmf = 1;
2906 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
2907 if (complex_count > 0)
2908 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2909 if (sig->ret->type != MONO_TYPE_VOID) {
2910 loc_return = mono_mb_add_local (mb, sig->ret);
2911 ret_class = mono_class_from_mono_type (sig->ret);
2916 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
2917 main_clause->try_offset = mono_mb_get_label (mb);
2919 /* Clean the call context */
2921 mono_mb_emit_byte (mb, CEE_LDNULL);
2922 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
2923 mono_mb_emit_byte (mb, CEE_POP);
2925 /* Deserialize call data */
2927 mono_mb_emit_ldarg (mb, 1);
2928 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2929 mono_mb_emit_byte (mb, CEE_DUP);
2930 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2932 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2933 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2935 if (complex_count > 0)
2936 mono_mb_emit_stloc (mb, loc_array);
2938 mono_mb_emit_byte (mb, CEE_POP);
2940 mono_mb_patch_short_branch (mb, pos);
2942 /* Get the target object */
2944 mono_mb_emit_ldarg (mb, 0);
2945 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
2947 /* Load the arguments */
2949 copy_locals_base = mb->locals;
2950 param_index = 3; // Index of the first non-serialized parameter of this wrapper
2952 for (i = 0; i < sig->param_count; i++) {
2953 MonoType *pt = sig->params [i];
2954 MonoClass *pclass = mono_class_from_mono_type (pt);
2955 switch (marshal_types [i]) {
2956 case MONO_MARSHAL_SERIALIZE: {
2957 /* take the value from the serialized array */
2958 mono_mb_emit_ldloc (mb, loc_array);
2959 mono_mb_emit_icon (mb, j++);
2961 if (pclass->valuetype) {
2962 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2963 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
2965 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
2968 if (pclass->valuetype) {
2969 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2970 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
2971 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
2973 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2974 if (pclass != mono_defaults.object_class) {
2975 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2981 case MONO_MARSHAL_COPY_OUT: {
2982 /* Keep a local copy of the value since we need to copy it back after the call */
2983 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
2984 mono_mb_emit_ldarg (mb, param_index++);
2985 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2986 mono_mb_emit_byte (mb, CEE_DUP);
2987 mono_mb_emit_stloc (mb, copy_local);
2990 case MONO_MARSHAL_COPY: {
2991 mono_mb_emit_ldarg (mb, param_index);
2993 mono_mb_emit_byte (mb, CEE_DUP);
2994 mono_mb_emit_byte (mb, CEE_DUP);
2995 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2996 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2997 mono_mb_emit_byte (mb, CEE_STIND_REF);
2999 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3004 case MONO_MARSHAL_NONE:
3005 mono_mb_emit_ldarg (mb, param_index++);
3010 /* Make the call to the real object */
3012 emit_thread_force_interrupt_checkpoint (mb);
3014 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3016 if (sig->ret->type != MONO_TYPE_VOID)
3017 mono_mb_emit_stloc (mb, loc_return);
3019 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3023 for (i = 0; i < sig->param_count; i++) {
3024 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3025 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3026 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3027 mono_mb_emit_ldarg (mb, param_index);
3028 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3033 /* Serialize the return values */
3035 if (complex_out_count > 0) {
3036 /* Reset parameters in the array that don't need to be serialized back */
3038 for (i = 0; i < sig->param_count; i++) {
3039 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3040 if (!sig->params [i]->byref) {
3041 mono_mb_emit_ldloc (mb, loc_array);
3042 mono_mb_emit_icon (mb, j);
3043 mono_mb_emit_byte (mb, CEE_LDNULL);
3044 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3049 /* Add the return value to the array */
3051 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3052 mono_mb_emit_ldloc (mb, loc_array);
3053 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3054 mono_mb_emit_ldloc (mb, loc_return);
3055 if (ret_class->valuetype) {
3056 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3058 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3063 mono_mb_emit_ldarg (mb, 1);
3064 mono_mb_emit_ldloc (mb, loc_array);
3065 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3066 mono_mb_emit_byte (mb, CEE_STIND_REF);
3067 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3068 mono_mb_emit_ldarg (mb, 1);
3069 mono_mb_emit_ldloc (mb, loc_return);
3070 if (ret_class->valuetype) {
3071 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3073 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3074 mono_mb_emit_byte (mb, CEE_STIND_REF);
3076 mono_mb_emit_ldarg (mb, 1);
3077 mono_mb_emit_byte (mb, CEE_LDNULL);
3078 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3079 mono_mb_emit_byte (mb, CEE_STIND_REF);
3082 mono_mb_emit_ldarg (mb, 2);
3083 mono_mb_emit_byte (mb, CEE_LDNULL);
3084 mono_mb_emit_byte (mb, CEE_STIND_REF);
3085 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3087 /* Main exception catch */
3088 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3089 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3090 main_clause->data.catch_class = mono_defaults.object_class;
3093 main_clause->handler_offset = mono_mb_get_label (mb);
3094 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3095 mono_mb_emit_stloc (mb, loc_serialized_exc);
3096 mono_mb_emit_ldarg (mb, 2);
3097 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3098 mono_mb_emit_byte (mb, CEE_STIND_REF);
3099 mono_mb_emit_branch (mb, CEE_LEAVE);
3100 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3103 mono_mb_patch_branch (mb, pos_leave);
3106 mono_mb_emit_ldloc (mb, loc_return);
3108 mono_mb_emit_byte (mb, CEE_RET);
3110 mono_mb_set_clauses (mb, 1, main_clause);
3112 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3118 /* mono_marshal_get_xappdomain_invoke ()
3119 * Generates a fast remoting wrapper for cross app domain calls.
3122 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3124 MonoMethodSignature *sig;
3125 MonoMethodBuilder *mb;
3127 int i, j, complex_count, complex_out_count, copy_locals_base;
3129 MonoClass *ret_class = NULL;
3130 MonoMethod *xdomain_method;
3131 int ret_marshal_type = MONO_MARSHAL_NONE;
3132 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3133 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3134 int pos, pos_dispatch, pos_noex;
3135 gboolean copy_return = FALSE;
3139 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3142 /* we cant remote methods without this pointer */
3143 if (!mono_method_signature (method)->hasthis)
3146 if (!mono_marshal_supports_fast_xdomain (method))
3147 return mono_marshal_get_remoting_invoke (method);
3149 mono_remoting_marshal_init ();
3151 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3154 sig = mono_signature_no_pinvoke (method);
3156 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3157 mb->method->save_lmf = 1;
3159 /* Count the number of parameters that need to be serialized */
3161 marshal_types = alloca (sizeof (int) * sig->param_count);
3162 complex_count = complex_out_count = 0;
3163 for (i = 0; i < sig->param_count; i++) {
3164 MonoType *ptype = sig->params[i];
3165 int mt = mono_get_xdomain_marshal_type (ptype);
3167 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3168 * the copy will be made by reusing the original object instance
3170 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3171 mt = MONO_MARSHAL_COPY_OUT;
3172 else if (mt == MONO_MARSHAL_SERIALIZE) {
3174 if (ptype->byref) complex_out_count++;
3176 marshal_types [i] = mt;
3179 if (sig->ret->type != MONO_TYPE_VOID) {
3180 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3181 ret_class = mono_class_from_mono_type (sig->ret);
3182 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3187 if (complex_count > 0)
3188 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3189 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3190 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3192 loc_return = mono_mb_add_local (mb, sig->ret);
3193 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3194 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3195 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3196 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3198 /* Save thread domain data */
3200 mono_mb_emit_icall (mb, mono_context_get);
3201 mono_mb_emit_byte (mb, CEE_DUP);
3202 mono_mb_emit_stloc (mb, loc_context);
3204 /* If the thread is not running in the default context, it needs to go
3205 * through the whole remoting sink, since the context is going to change
3207 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3208 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3210 /* Another case in which the fast path can't be used: when the target domain
3211 * has a different image for the same assembly.
3214 /* Get the target domain id */
3216 mono_mb_emit_ldarg (mb, 0);
3217 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3218 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3219 mono_mb_emit_byte (mb, CEE_DUP);
3220 mono_mb_emit_stloc (mb, loc_real_proxy);
3222 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3223 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3224 mono_mb_emit_stloc (mb, loc_domainid);
3226 /* Check if the target domain has the same image for the required assembly */
3228 mono_mb_emit_ldloc (mb, loc_domainid);
3229 mono_mb_emit_ptr (mb, method->klass->image);
3230 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3231 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3233 /* Use the whole remoting sink to dispatch this message */
3235 mono_mb_patch_short_branch (mb, pos);
3237 mono_mb_emit_ldarg (mb, 0);
3238 for (i = 0; i < sig->param_count; i++)
3239 mono_mb_emit_ldarg (mb, i + 1);
3241 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3242 mono_mb_emit_byte (mb, CEE_RET);
3243 mono_mb_patch_short_branch (mb, pos_dispatch);
3245 /* Create the array that will hold the parameters to be serialized */
3247 if (complex_count > 0) {
3248 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 */
3249 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3252 for (i = 0; i < sig->param_count; i++) {
3254 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3255 pclass = mono_class_from_mono_type (sig->params[i]);
3256 mono_mb_emit_byte (mb, CEE_DUP);
3257 mono_mb_emit_icon (mb, j);
3258 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3259 if (sig->params[i]->byref) {
3260 if (pclass->valuetype)
3261 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3263 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3265 if (pclass->valuetype)
3266 mono_mb_emit_op (mb, CEE_BOX, pclass);
3267 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3270 mono_mb_emit_stloc (mb, loc_array);
3272 /* Serialize parameters */
3274 mono_mb_emit_ldloc (mb, loc_array);
3275 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3276 mono_mb_emit_stloc (mb, loc_serialized_data);
3278 mono_mb_emit_byte (mb, CEE_LDNULL);
3279 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3280 mono_mb_emit_stloc (mb, loc_serialized_data);
3285 mono_mb_emit_ldloc (mb, loc_domainid);
3286 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3287 mono_marshal_emit_switch_domain (mb);
3288 mono_mb_emit_stloc (mb, loc_old_domainid);
3290 /* Load the arguments */
3292 mono_mb_emit_ldloc (mb, loc_real_proxy);
3293 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3294 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3296 copy_locals_base = mb->locals;
3297 for (i = 0; i < sig->param_count; i++) {
3298 switch (marshal_types [i]) {
3299 case MONO_MARSHAL_SERIALIZE:
3301 case MONO_MARSHAL_COPY: {
3302 mono_mb_emit_ldarg (mb, i+1);
3303 if (sig->params [i]->byref) {
3304 /* make a local copy of the byref parameter. The real parameter
3305 * will be updated after the xdomain call
3307 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3308 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3309 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3310 mono_mb_emit_stloc (mb, copy_local);
3311 mono_mb_emit_ldloc_addr (mb, copy_local);
3315 case MONO_MARSHAL_COPY_OUT:
3316 case MONO_MARSHAL_NONE:
3317 mono_mb_emit_ldarg (mb, i+1);
3322 /* Make the call to the invoke wrapper in the target domain */
3324 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3325 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3326 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3329 mono_mb_emit_stloc (mb, loc_return);
3333 mono_mb_emit_ldloc (mb, loc_old_domainid);
3334 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3335 mono_marshal_emit_switch_domain (mb);
3336 mono_mb_emit_byte (mb, CEE_POP);
3338 /* Restore thread domain data */
3340 mono_mb_emit_ldloc (mb, loc_context);
3341 mono_mb_emit_icall (mb, mono_context_set);
3343 /* if (loc_serialized_exc != null) ... */
3345 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3346 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3348 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3349 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3350 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3351 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3352 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3353 mono_mb_emit_byte (mb, CEE_THROW);
3354 mono_mb_patch_short_branch (mb, pos_noex);
3356 /* copy back non-serialized output parameters */
3359 for (i = 0; i < sig->param_count; i++) {
3360 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3361 mono_mb_emit_ldarg (mb, i + 1);
3362 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3363 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3364 mono_mb_emit_byte (mb, CEE_STIND_REF);
3367 /* Deserialize out parameters */
3369 if (complex_out_count > 0) {
3370 mono_mb_emit_ldloc (mb, loc_serialized_data);
3371 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3372 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3373 mono_mb_emit_stloc (mb, loc_array);
3375 /* Copy back output parameters and return type */
3378 for (i = 0; i < sig->param_count; i++) {
3379 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3380 if (sig->params[i]->byref) {
3381 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3382 mono_mb_emit_ldarg (mb, i + 1);
3383 mono_mb_emit_ldloc (mb, loc_array);
3384 mono_mb_emit_icon (mb, j);
3385 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3386 if (pclass->valuetype) {
3387 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3388 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3389 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3391 if (pclass != mono_defaults.object_class)
3392 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3393 mono_mb_emit_byte (mb, CEE_STIND_REF);
3399 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3400 mono_mb_emit_ldloc (mb, loc_array);
3401 mono_mb_emit_icon (mb, complex_count);
3402 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3403 if (ret_class->valuetype) {
3404 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3405 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3408 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3409 mono_mb_emit_ldloc (mb, loc_serialized_data);
3410 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3411 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3412 if (ret_class->valuetype) {
3413 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3414 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3415 } else if (ret_class != mono_defaults.object_class) {
3416 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3419 mono_mb_emit_ldloc (mb, loc_serialized_data);
3420 mono_mb_emit_byte (mb, CEE_DUP);
3421 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3422 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3424 mono_mb_patch_short_branch (mb, pos);
3425 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3426 mono_mb_emit_byte (mb, CEE_POP);
3430 mono_mb_emit_ldloc (mb, loc_return);
3431 if (ret_marshal_type == MONO_MARSHAL_COPY)
3432 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3435 mono_mb_emit_byte (mb, CEE_RET);
3437 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3444 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3446 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3447 return mono_marshal_get_xappdomain_invoke (method);
3448 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3450 return mono_cominterop_get_invoke (method);
3452 g_assert_not_reached ();
3455 return mono_marshal_get_remoting_invoke (method);
3459 G_GNUC_UNUSED static gpointer
3460 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3462 if (rp->target_domain_id != -1)
3463 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3465 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3469 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3471 MonoMethodSignature *sig;
3472 MonoMethodBuilder *mb;
3473 MonoMethod *res, *native;
3474 int i, pos, pos_rem;
3478 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3481 /* we cant remote methods without this pointer */
3482 g_assert (mono_method_signature (method)->hasthis);
3484 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3487 sig = mono_signature_no_pinvoke (method);
3489 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3491 for (i = 0; i <= sig->param_count; i++)
3492 mono_mb_emit_ldarg (mb, i);
3494 mono_mb_emit_ldarg (mb, 0);
3495 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3497 if (mono_marshal_supports_fast_xdomain (method)) {
3498 mono_mb_emit_ldarg (mb, 0);
3499 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3501 /* wrapper for cross app domain calls */
3502 native = mono_marshal_get_xappdomain_invoke (method);
3503 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3504 mono_mb_emit_byte (mb, CEE_RET);
3506 mono_mb_patch_branch (mb, pos_rem);
3508 /* wrapper for normal remote calls */
3509 native = mono_marshal_get_remoting_invoke (method);
3510 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3511 mono_mb_emit_byte (mb, CEE_RET);
3514 mono_mb_patch_branch (mb, pos);
3515 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3516 mono_mb_emit_byte (mb, CEE_RET);
3518 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3526 MonoMethodSignature *sig;
3528 } SignatureMethodPair;
3531 signature_method_pair_hash (gconstpointer data)
3533 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3535 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3539 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3541 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3545 free_signature_method_pair (SignatureMethodPair *pair)
3551 * the returned method invokes all methods in a multicast delegate.
3554 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3556 MonoMethodSignature *sig, *static_sig;
3558 MonoMethodBuilder *mb;
3559 MonoMethod *res, *newm;
3561 SignatureMethodPair key;
3562 SignatureMethodPair *new_key;
3563 int local_prev, local_target;
3566 MonoMethod *target_method = NULL;
3567 MonoClass *target_class = NULL;
3568 gboolean callvirt = FALSE;
3571 * If the delegate target is null, and the target method is not static, a virtual
3572 * call is made to that method with the first delegate argument as this. This is
3573 * a non-documented .NET feature.
3575 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3577 target_method = del->method;
3578 if (target_method->is_inflated) {
3579 MonoType *target_type;
3581 g_assert (method->signature->hasthis);
3582 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3583 mono_method_get_context (method));
3584 target_class = mono_class_from_mono_type (target_type);
3586 target_class = del->method->klass;
3590 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3591 !strcmp (method->name, "Invoke"));
3593 sig = mono_signature_no_pinvoke (method);
3596 /* We need to cache the signature+method pair */
3597 mono_marshal_lock ();
3598 if (!method->klass->image->delegate_abstract_invoke_cache)
3599 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);
3600 cache = method->klass->image->delegate_abstract_invoke_cache;
3602 key.method = target_method;
3603 res = g_hash_table_lookup (cache, &key);
3604 mono_marshal_unlock ();
3608 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3609 (GHashFunc)mono_signature_hash,
3610 (GCompareFunc)mono_metadata_signature_equal);
3611 if ((res = mono_marshal_find_in_cache (cache, sig)))
3615 static_sig = signature_dup (method->klass->image, sig);
3616 static_sig->hasthis = 0;
3618 name = mono_signature_to_name (sig, "invoke");
3619 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3622 /* allocate local 0 (object) */
3623 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3624 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3626 g_assert (sig->hasthis);
3630 * prev.Invoke( args .. );
3631 * return this.<target>( args .. );
3634 /* this wrapper can be used in unmanaged-managed transitions */
3635 emit_thread_interrupt_checkpoint (mb);
3637 /* get this->prev */
3638 mono_mb_emit_ldarg (mb, 0);
3639 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3640 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3641 mono_mb_emit_stloc (mb, local_prev);
3642 mono_mb_emit_ldloc (mb, local_prev);
3644 /* if prev != null */
3645 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3649 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3650 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3652 mono_mb_emit_ldloc (mb, local_prev);
3653 for (i = 0; i < sig->param_count; i++)
3654 mono_mb_emit_ldarg (mb, i + 1);
3655 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3656 if (sig->ret->type != MONO_TYPE_VOID)
3657 mono_mb_emit_byte (mb, CEE_POP);
3659 /* continued or prev == null */
3660 mono_mb_patch_branch (mb, pos0);
3662 /* get this->target */
3663 mono_mb_emit_ldarg (mb, 0);
3664 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3665 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3666 mono_mb_emit_stloc (mb, local_target);
3668 /* if target != null */
3669 mono_mb_emit_ldloc (mb, local_target);
3670 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3672 /* then call this->method_ptr nonstatic */
3675 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3677 mono_mb_emit_ldloc (mb, local_target);
3678 for (i = 0; i < sig->param_count; ++i)
3679 mono_mb_emit_ldarg (mb, i + 1);
3680 mono_mb_emit_ldarg (mb, 0);
3681 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3682 mono_mb_emit_byte (mb, CEE_LDIND_I );
3683 mono_mb_emit_op (mb, CEE_CALLI, sig);
3685 mono_mb_emit_byte (mb, CEE_RET);
3688 /* else [target == null] call this->method_ptr static */
3689 mono_mb_patch_branch (mb, pos0);
3692 mono_mb_emit_ldarg (mb, 1);
3693 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3694 for (i = 1; i < sig->param_count; ++i)
3695 mono_mb_emit_ldarg (mb, i + 1);
3696 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3698 for (i = 0; i < sig->param_count; ++i)
3699 mono_mb_emit_ldarg (mb, i + 1);
3700 mono_mb_emit_ldarg (mb, 0);
3701 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3702 mono_mb_emit_byte (mb, CEE_LDIND_I );
3703 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3706 mono_mb_emit_byte (mb, CEE_RET);
3709 // From mono_mb_create_and_cache
3710 mb->skip_visibility = 1;
3711 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3712 /*We perform double checked locking, so must fence before publishing*/
3713 mono_memory_barrier ();
3714 mono_marshal_lock ();
3715 res = g_hash_table_lookup (cache, &key);
3718 new_key = g_new0 (SignatureMethodPair, 1);
3720 new_key->method = target_method;
3721 g_hash_table_insert (cache, new_key, res);
3722 mono_marshal_method_set_wrapper_data (res, new_key);
3723 mono_marshal_unlock ();
3725 mono_marshal_unlock ();
3726 mono_free_method (newm);
3729 mb->skip_visibility = 1;
3730 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3738 * signature_dup_add_this:
3740 * Make a copy of @sig, adding an explicit this argument.
3742 static MonoMethodSignature*
3743 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3745 MonoMethodSignature *res;
3748 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3749 memcpy (res, sig, sizeof (MonoMethodSignature));
3750 res->param_count = sig->param_count + 1;
3751 res->hasthis = FALSE;
3752 for (i = sig->param_count - 1; i >= 0; i --)
3753 res->params [i + 1] = sig->params [i];
3754 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3760 MonoMethodSignature *ctor_sig;
3761 MonoMethodSignature *sig;
3764 /* protected by the marshal lock, contains CtorSigPair pointers */
3765 static GSList *strsig_list = NULL;
3767 static MonoMethodSignature *
3768 lookup_string_ctor_signature (MonoMethodSignature *sig)
3770 MonoMethodSignature *callsig;
3774 mono_marshal_lock ();
3776 for (item = strsig_list; item; item = item->next) {
3778 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3779 * because it is lock-free.
3781 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3786 mono_marshal_unlock ();
3790 static MonoMethodSignature *
3791 add_string_ctor_signature (MonoMethod *method)
3793 MonoMethodSignature *callsig;
3796 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3797 callsig->ret = &mono_defaults.string_class->byval_arg;
3798 cs = g_new (CtorSigPair, 1);
3800 cs->ctor_sig = mono_method_signature (method);
3802 mono_marshal_lock ();
3803 strsig_list = g_slist_prepend (strsig_list, cs);
3804 mono_marshal_unlock ();
3809 get_runtime_invoke_type (MonoType *t)
3812 return &mono_defaults.int_class->byval_arg;
3817 return &mono_defaults.sbyte_class->byval_arg;
3819 return &mono_defaults.int16_class->byval_arg;
3821 return &mono_defaults.int32_class->byval_arg;
3823 return &mono_defaults.int64_class->byval_arg;
3824 case MONO_TYPE_BOOLEAN:
3825 return &mono_defaults.sbyte_class->byval_arg;
3826 case MONO_TYPE_CHAR:
3827 return &mono_defaults.int16_class->byval_arg;
3830 return &mono_defaults.int_class->byval_arg;
3831 case MONO_TYPE_VALUETYPE:
3832 if (t->data.klass->enumtype) {
3833 t = mono_class_enum_basetype (t->data.klass);
3838 if (MONO_TYPE_IS_REFERENCE (t))
3839 return &mono_defaults.object_class->byval_arg;
3845 * mono_marshal_get_runtime_invoke_sig:
3847 * Return a common signature used for sharing runtime invoke wrappers.
3849 static MonoMethodSignature*
3850 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3852 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3855 res->ret = get_runtime_invoke_type (sig->ret);
3856 for (i = 0; i < res->param_count; ++i)
3857 res->params [i] = get_runtime_invoke_type (sig->params [i]);
3863 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3865 /* Can't share wrappers which return a vtype since it needs to be boxed */
3866 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)))
3869 return mono_metadata_signature_equal (sig1, sig2);
3873 * generates IL code for the runtime invoke function
3874 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3876 * we also catch exceptions if exc != null
3877 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3878 * it means that the compiled code for METHOD does not have to be looked up
3879 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3880 * its METHOD argument.
3883 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3885 MonoMethodSignature *sig, *csig, *callsig;
3886 MonoExceptionClause *clause;
3887 MonoMethodBuilder *mb;
3888 GHashTable *cache = NULL;
3889 MonoClass *target_klass;
3890 MonoMethod *res = NULL;
3891 static MonoString *string_dummy = NULL;
3892 static MonoMethodSignature *cctor_signature = NULL;
3893 static MonoMethodSignature *finalize_signature = NULL;
3896 gboolean need_direct_wrapper = FALSE;
3897 int *tmp_nullable_locals;
3901 if (!cctor_signature) {
3902 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3903 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3905 if (!finalize_signature) {
3906 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3907 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3908 finalize_signature->hasthis = 1;
3912 need_direct_wrapper = TRUE;
3915 * Use a separate cache indexed by methods to speed things up and to avoid the
3916 * boundless mempool growth caused by the signature_dup stuff below.
3919 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3921 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3922 res = mono_marshal_find_in_cache (cache, method);
3926 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3927 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3929 * Array Get/Set/Address methods. The JIT implements them using inline code
3930 * so we need to create an invoke wrapper which calls the method directly.
3932 need_direct_wrapper = TRUE;
3935 if (method->string_ctor) {
3936 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3938 callsig = add_string_ctor_signature (method);
3939 /* Can't share this as we push a string as this */
3940 need_direct_wrapper = TRUE;
3942 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
3944 * Valuetype methods receive a managed pointer as the this argument.
3945 * Create a new signature to reflect this.
3947 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
3949 if (method->dynamic)
3950 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3952 callsig = mono_method_signature (method);
3956 /* Vtypes/nullables/Byrefs cause too many problems */
3957 for (i = 0; i < callsig->param_count; ++i) {
3958 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
3959 need_direct_wrapper = TRUE;
3963 * We try to share runtime invoke wrappers between different methods but have to
3964 * be careful about methods whose klass has a type cctor, since putting the wrapper
3965 * into that klass would mean that calling a method of klass A might invoke the
3966 * type initializer of class B, or throw an exception if the type initializer
3967 * was called before and failed. See #349621 for an example.
3968 * We avoid that for mscorlib methods by putting every wrapper into the object class.
3970 if (method->klass->image == mono_defaults.corlib)
3971 target_klass = mono_defaults.object_class;
3973 /* Try to share wrappers for non-corlib methods with simple signatures */
3974 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3975 callsig = cctor_signature;
3976 target_klass = mono_defaults.object_class;
3977 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3978 callsig = finalize_signature;
3979 target_klass = mono_defaults.object_class;
3981 // FIXME: This breaks too many things
3983 if (mono_class_get_cctor (method->klass))
3984 need_direct_wrapper = TRUE;
3988 * Can't put these wrappers into object, since they reference non-corlib
3989 * metadata (callsig).
3991 target_klass = method->klass;
3995 if (need_direct_wrapper) {
3996 /* Already searched at the start */
3998 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4000 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4001 (GHashFunc)mono_signature_hash,
4002 (GCompareFunc)runtime_invoke_signature_equal);
4004 /* from mono_marshal_find_in_cache */
4005 mono_marshal_lock ();
4006 res = g_hash_table_lookup (cache, callsig);
4007 mono_marshal_unlock ();
4014 // FIXME: When to free callsig ?
4017 /* to make it work with our special string constructors */
4018 if (!string_dummy) {
4019 MONO_GC_REGISTER_ROOT (string_dummy);
4020 string_dummy = mono_string_new_wrapper ("dummy");
4023 sig = mono_method_signature (method);
4025 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4027 csig->ret = &mono_defaults.object_class->byval_arg;
4028 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4029 csig->params [0] = callsig->params [0];
4031 csig->params [0] = &mono_defaults.object_class->byval_arg;
4032 csig->params [1] = &mono_defaults.int_class->byval_arg;
4033 csig->params [2] = &mono_defaults.int_class->byval_arg;
4034 csig->params [3] = &mono_defaults.int_class->byval_arg;
4036 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4037 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4040 /* allocate local 0 (object) tmp */
4041 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4042 /* allocate local 1 (object) exc */
4043 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4045 /* cond set *exc to null */
4046 mono_mb_emit_byte (mb, CEE_LDARG_2);
4047 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4048 mono_mb_emit_byte (mb, 3);
4049 mono_mb_emit_byte (mb, CEE_LDARG_2);
4050 mono_mb_emit_byte (mb, CEE_LDNULL);
4051 mono_mb_emit_byte (mb, CEE_STIND_REF);
4053 emit_thread_force_interrupt_checkpoint (mb);
4056 g_assert (sig->hasthis);
4057 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4061 if (method->string_ctor) {
4062 mono_mb_emit_ptr (mb, string_dummy);
4064 mono_mb_emit_ldarg (mb, 0);
4068 tmp_nullable_locals = g_new0 (int, sig->param_count);
4070 for (i = 0; i < sig->param_count; i++) {
4071 MonoType *t = sig->params [i];
4074 mono_mb_emit_ldarg (mb, 1);
4076 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4077 mono_mb_emit_byte (mb, CEE_ADD);
4081 mono_mb_emit_byte (mb, CEE_LDIND_I);
4082 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4083 * So to make this work we unbox it to a local variablee and push a reference to that.
4085 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4086 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4088 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4089 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4090 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4095 type = sig->params [i]->type;
4099 case MONO_TYPE_BOOLEAN:
4103 case MONO_TYPE_CHAR:
4112 mono_mb_emit_byte (mb, CEE_LDIND_I);
4113 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4115 case MONO_TYPE_STRING:
4116 case MONO_TYPE_CLASS:
4117 case MONO_TYPE_ARRAY:
4119 case MONO_TYPE_SZARRAY:
4120 case MONO_TYPE_OBJECT:
4121 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4123 case MONO_TYPE_GENERICINST:
4124 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4125 mono_mb_emit_byte (mb, CEE_LDIND_I);
4130 case MONO_TYPE_VALUETYPE:
4131 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4132 type = mono_class_enum_basetype (t->data.klass)->type;
4135 mono_mb_emit_byte (mb, CEE_LDIND_I);
4136 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4137 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4138 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4139 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4141 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4145 g_assert_not_reached ();
4150 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4151 } else if (need_direct_wrapper) {
4152 mono_mb_emit_op (mb, CEE_CALL, method);
4154 mono_mb_emit_ldarg (mb, 3);
4155 mono_mb_emit_calli (mb, callsig);
4158 if (sig->ret->byref) {
4160 g_assert_not_reached ();
4164 switch (sig->ret->type) {
4165 case MONO_TYPE_VOID:
4166 if (!method->string_ctor)
4167 mono_mb_emit_byte (mb, CEE_LDNULL);
4169 case MONO_TYPE_BOOLEAN:
4170 case MONO_TYPE_CHAR:
4183 case MONO_TYPE_VALUETYPE:
4184 case MONO_TYPE_TYPEDBYREF:
4185 case MONO_TYPE_GENERICINST:
4186 /* box value types */
4187 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4189 case MONO_TYPE_STRING:
4190 case MONO_TYPE_CLASS:
4191 case MONO_TYPE_ARRAY:
4192 case MONO_TYPE_SZARRAY:
4193 case MONO_TYPE_OBJECT:
4198 g_assert_not_reached ();
4201 mono_mb_emit_stloc (mb, 0);
4203 /* Convert back nullable-byref arguments */
4204 for (i = 0; i < sig->param_count; i++) {
4205 MonoType *t = sig->params [i];
4208 * Box the result and put it back into the array, the caller will have
4209 * to obtain it from there.
4211 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4212 mono_mb_emit_ldarg (mb, 1);
4213 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4214 mono_mb_emit_byte (mb, CEE_ADD);
4216 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4217 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4219 mono_mb_emit_byte (mb, CEE_STIND_REF);
4223 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4225 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4226 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4227 clause->try_len = mono_mb_get_label (mb);
4230 clause->data.filter_offset = mono_mb_get_label (mb);
4232 mono_mb_emit_byte (mb, CEE_POP);
4233 mono_mb_emit_byte (mb, CEE_LDARG_2);
4234 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4235 mono_mb_emit_byte (mb, CEE_PREFIX1);
4236 mono_mb_emit_byte (mb, CEE_CGT_UN);
4237 mono_mb_emit_byte (mb, CEE_PREFIX1);
4238 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4240 clause->handler_offset = mono_mb_get_label (mb);
4243 /* store exception */
4244 mono_mb_emit_stloc (mb, 1);
4246 mono_mb_emit_byte (mb, CEE_LDARG_2);
4247 mono_mb_emit_ldloc (mb, 1);
4248 mono_mb_emit_byte (mb, CEE_STIND_REF);
4250 mono_mb_emit_byte (mb, CEE_LDNULL);
4251 mono_mb_emit_stloc (mb, 0);
4253 /* Check for the abort exception */
4254 mono_mb_emit_ldloc (mb, 1);
4255 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4256 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4258 /* Delay the abort exception */
4259 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4261 mono_mb_patch_short_branch (mb, posna);
4262 mono_mb_emit_branch (mb, CEE_LEAVE);
4264 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4266 mono_mb_set_clauses (mb, 1, clause);
4269 mono_mb_patch_branch (mb, pos);
4270 mono_mb_emit_ldloc (mb, 0);
4271 mono_mb_emit_byte (mb, CEE_RET);
4273 if (need_direct_wrapper) {
4274 mb->skip_visibility = 1;
4275 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4277 /* taken from mono_mb_create_and_cache */
4278 mono_marshal_lock ();
4279 res = g_hash_table_lookup (cache, callsig);
4280 mono_marshal_unlock ();
4282 /* Somebody may have created it before us */
4285 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4287 mono_marshal_lock ();
4288 res = g_hash_table_lookup (cache, callsig);
4291 g_hash_table_insert (cache, callsig, res);
4292 /* Can't insert it into wrapper_hash since the key is a signature */
4293 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4295 mono_free_method (newm);
4297 mono_marshal_unlock ();
4300 /* end mono_mb_create_and_cache */
4309 * mono_marshal_get_static_rgctx_invoke:
4312 * Generates a wrapper for calling a generic shared method, either
4313 * static or generic. We need this for virtual generic method lookup
4314 * and ldftn when we do generic code sharing. Instead of producing
4315 * the address of the method we produce the address of a wrapper for
4316 * the method because the wrapper passes the (method) runtime generic
4317 * context argument which calli cannot do.
4320 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
4322 static gboolean inited = FALSE;
4323 static int num_wrappers = 0;
4325 MonoMethodBuilder *mb;
4327 MonoClass *target_klass = method->klass;
4328 MonoMethodSignature *sig = mono_method_signature (method);
4332 MonoImage *image = method->klass->image;
4334 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
4335 if ((res = mono_marshal_find_in_cache (cache, method)))
4339 mono_counters_register ("Static rgctx invoke wrappers",
4340 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
4345 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
4346 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
4349 for (i = 0; i < sig->param_count + sig->hasthis; i++)
4350 mono_mb_emit_ldarg (mb, i);
4351 mono_mb_emit_op (mb, CEE_CALL, method);
4352 mono_mb_emit_byte (mb, CEE_RET);
4354 mb->skip_visibility = TRUE;
4355 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
4356 sig->param_count + sig->hasthis + 4);
4357 res->flags = method->flags;
4365 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4367 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4368 klass->name_space, klass->name);
4370 mono_mb_emit_exception_marshal_directive (mb, msg);
4374 * mono_marshal_get_ldfld_remote_wrapper:
4375 * @klass: The return type
4377 * This method generates a wrapper for calling mono_load_remote_field_new.
4378 * The return type is ignored for now, as mono_load_remote_field_new () always
4379 * returns an object. In the future, to optimize some codepaths, we might
4380 * call a different function that takes a pointer to a valuetype, instead.
4383 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4385 MonoMethodSignature *sig, *csig;
4386 MonoMethodBuilder *mb;
4388 static MonoMethod* cached = NULL;
4390 mono_marshal_lock ();
4392 mono_marshal_unlock ();
4395 mono_marshal_unlock ();
4397 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4399 mb->method->save_lmf = 1;
4401 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4402 sig->params [0] = &mono_defaults.object_class->byval_arg;
4403 sig->params [1] = &mono_defaults.int_class->byval_arg;
4404 sig->params [2] = &mono_defaults.int_class->byval_arg;
4405 sig->ret = &mono_defaults.object_class->byval_arg;
4407 mono_mb_emit_ldarg (mb, 0);
4408 mono_mb_emit_ldarg (mb, 1);
4409 mono_mb_emit_ldarg (mb, 2);
4411 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4412 csig->params [0] = &mono_defaults.object_class->byval_arg;
4413 csig->params [1] = &mono_defaults.int_class->byval_arg;
4414 csig->params [2] = &mono_defaults.int_class->byval_arg;
4415 csig->ret = &mono_defaults.object_class->byval_arg;
4418 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4419 emit_thread_interrupt_checkpoint (mb);
4421 mono_mb_emit_byte (mb, CEE_RET);
4423 mono_marshal_lock ();
4425 mono_marshal_unlock ();
4428 newm = mono_mb_create_method (mb, sig, 4);
4429 mono_marshal_lock ();
4434 mono_marshal_unlock ();
4436 mono_marshal_unlock ();
4437 mono_free_method (newm);
4446 * mono_marshal_get_ldfld_wrapper:
4447 * @type: the type of the field
4449 * This method generates a function which can be use to load a field with type
4450 * @type from an object. The generated function has the following signature:
4451 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4454 mono_marshal_get_ldfld_wrapper (MonoType *type)
4456 MonoMethodSignature *sig;
4457 MonoMethodBuilder *mb;
4462 int t, pos0, pos1 = 0;
4464 type = mono_type_get_underlying_type (type);
4469 if (type->type == MONO_TYPE_SZARRAY) {
4470 klass = mono_defaults.array_class;
4471 } else if (type->type == MONO_TYPE_VALUETYPE) {
4472 klass = type->data.klass;
4473 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4474 klass = mono_defaults.object_class;
4475 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4476 klass = mono_defaults.int_class;
4477 } else if (t == MONO_TYPE_GENERICINST) {
4478 if (mono_type_generic_inst_is_valuetype (type))
4479 klass = mono_class_from_mono_type (type);
4481 klass = mono_defaults.object_class;
4483 klass = mono_class_from_mono_type (type);
4486 klass = mono_defaults.int_class;
4489 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4490 if ((res = mono_marshal_find_in_cache (cache, klass)))
4493 /* we add the %p pointer value of klass because class names are not unique */
4494 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4495 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4498 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4499 sig->params [0] = &mono_defaults.object_class->byval_arg;
4500 sig->params [1] = &mono_defaults.int_class->byval_arg;
4501 sig->params [2] = &mono_defaults.int_class->byval_arg;
4502 sig->params [3] = &mono_defaults.int_class->byval_arg;
4503 sig->ret = &klass->byval_arg;
4505 mono_mb_emit_ldarg (mb, 0);
4506 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4508 mono_mb_emit_ldarg (mb, 0);
4509 mono_mb_emit_ldarg (mb, 1);
4510 mono_mb_emit_ldarg (mb, 2);
4512 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4515 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4516 csig->params [0] = &mono_defaults.object_class->byval_arg;
4517 csig->params [1] = &mono_defaults.int_class->byval_arg;
4518 csig->params [2] = &mono_defaults.int_class->byval_arg;
4519 csig->ret = &klass->this_arg;
4522 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4523 emit_thread_interrupt_checkpoint (mb);
4526 if (klass->valuetype) {
4527 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4528 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4530 mono_mb_emit_byte (mb, CEE_RET);
4534 mono_mb_patch_branch (mb, pos0);
4536 mono_mb_emit_ldarg (mb, 0);
4537 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4538 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4539 mono_mb_emit_ldarg (mb, 3);
4540 mono_mb_emit_byte (mb, CEE_ADD);
4542 if (klass->valuetype)
4543 mono_mb_patch_branch (mb, pos1);
4548 case MONO_TYPE_BOOLEAN:
4549 case MONO_TYPE_CHAR:
4558 case MONO_TYPE_ARRAY:
4559 case MONO_TYPE_SZARRAY:
4560 case MONO_TYPE_OBJECT:
4561 case MONO_TYPE_CLASS:
4562 case MONO_TYPE_STRING:
4566 case MONO_TYPE_FNPTR:
4567 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4569 case MONO_TYPE_VALUETYPE:
4570 g_assert (!klass->enumtype);
4571 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4573 case MONO_TYPE_GENERICINST:
4574 if (mono_type_generic_inst_is_valuetype (type)) {
4575 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4577 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4581 g_warning ("type %x not implemented", type->type);
4582 g_assert_not_reached ();
4585 mono_mb_emit_byte (mb, CEE_RET);
4587 res = mono_mb_create_and_cache (cache, klass,
4588 mb, sig, sig->param_count + 16);
4595 * mono_marshal_get_ldflda_wrapper:
4596 * @type: the type of the field
4598 * This method generates a function which can be used to load a field address
4599 * from an object. The generated function has the following signature:
4600 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4603 mono_marshal_get_ldflda_wrapper (MonoType *type)
4605 MonoMethodSignature *sig;
4606 MonoMethodBuilder *mb;
4611 int t, pos0, pos1, pos2, pos3;
4613 type = mono_type_get_underlying_type (type);
4617 if (type->type == MONO_TYPE_SZARRAY) {
4618 klass = mono_defaults.array_class;
4619 } else if (type->type == MONO_TYPE_VALUETYPE) {
4620 klass = type->data.klass;
4621 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4622 t == MONO_TYPE_CLASS) {
4623 klass = mono_defaults.object_class;
4624 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4625 klass = mono_defaults.int_class;
4626 } else if (t == MONO_TYPE_GENERICINST) {
4627 if (mono_type_generic_inst_is_valuetype (type))
4628 klass = mono_class_from_mono_type (type);
4630 klass = mono_defaults.object_class;
4632 klass = mono_class_from_mono_type (type);
4635 klass = mono_defaults.int_class;
4638 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4639 if ((res = mono_marshal_find_in_cache (cache, klass)))
4642 /* we add the %p pointer value of klass because class names are not unique */
4643 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4644 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4647 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4648 sig->params [0] = &mono_defaults.object_class->byval_arg;
4649 sig->params [1] = &mono_defaults.int_class->byval_arg;
4650 sig->params [2] = &mono_defaults.int_class->byval_arg;
4651 sig->params [3] = &mono_defaults.int_class->byval_arg;
4652 sig->ret = &mono_defaults.int_class->byval_arg;
4654 /* if typeof (this) != transparent_proxy goto pos0 */
4655 mono_mb_emit_ldarg (mb, 0);
4656 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4658 /* if same_appdomain goto pos1 */
4659 mono_mb_emit_ldarg (mb, 0);
4660 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4662 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4664 /* same app domain */
4665 mono_mb_patch_branch (mb, pos1);
4667 /* if typeof (this) != contextbound goto pos2 */
4668 mono_mb_emit_ldarg (mb, 0);
4669 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4671 /* if this->rp->context == mono_context_get goto pos3 */
4672 mono_mb_emit_ldarg (mb, 0);
4673 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4674 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4675 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4676 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4677 mono_mb_emit_icall (mb, mono_context_get);
4678 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4680 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4682 mono_mb_patch_branch (mb, pos2);
4683 mono_mb_patch_branch (mb, pos3);
4685 /* return the address of the field from this->rp->unwrapped_server */
4686 mono_mb_emit_ldarg (mb, 0);
4687 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4688 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4689 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4690 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4691 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4692 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4693 mono_mb_emit_ldarg (mb, 3);
4694 mono_mb_emit_byte (mb, CEE_ADD);
4695 mono_mb_emit_byte (mb, CEE_RET);
4697 /* not a proxy: return the address of the field directly */
4698 mono_mb_patch_branch (mb, pos0);
4700 mono_mb_emit_ldarg (mb, 0);
4701 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4702 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4703 mono_mb_emit_ldarg (mb, 3);
4704 mono_mb_emit_byte (mb, CEE_ADD);
4706 mono_mb_emit_byte (mb, CEE_RET);
4708 res = mono_mb_create_and_cache (cache, klass,
4709 mb, sig, sig->param_count + 16);
4716 * mono_marshal_get_stfld_remote_wrapper:
4717 * klass: The type of the field
4719 * This function generates a wrapper for calling mono_store_remote_field_new
4720 * with the appropriate signature.
4721 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4722 * klass argument anymore.
4725 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4727 MonoMethodSignature *sig, *csig;
4728 MonoMethodBuilder *mb;
4730 static MonoMethod *cached = NULL;
4732 mono_marshal_lock ();
4734 mono_marshal_unlock ();
4737 mono_marshal_unlock ();
4739 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4741 mb->method->save_lmf = 1;
4743 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4744 sig->params [0] = &mono_defaults.object_class->byval_arg;
4745 sig->params [1] = &mono_defaults.int_class->byval_arg;
4746 sig->params [2] = &mono_defaults.int_class->byval_arg;
4747 sig->params [3] = &mono_defaults.object_class->byval_arg;
4748 sig->ret = &mono_defaults.void_class->byval_arg;
4750 mono_mb_emit_ldarg (mb, 0);
4751 mono_mb_emit_ldarg (mb, 1);
4752 mono_mb_emit_ldarg (mb, 2);
4753 mono_mb_emit_ldarg (mb, 3);
4755 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4756 csig->params [0] = &mono_defaults.object_class->byval_arg;
4757 csig->params [1] = &mono_defaults.int_class->byval_arg;
4758 csig->params [2] = &mono_defaults.int_class->byval_arg;
4759 csig->params [3] = &mono_defaults.object_class->byval_arg;
4760 csig->ret = &mono_defaults.void_class->byval_arg;
4763 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4764 emit_thread_interrupt_checkpoint (mb);
4766 mono_mb_emit_byte (mb, CEE_RET);
4768 mono_marshal_lock ();
4770 mono_marshal_unlock ();
4773 newm = mono_mb_create_method (mb, sig, 6);
4774 mono_marshal_lock ();
4779 mono_marshal_unlock ();
4781 mono_marshal_unlock ();
4782 mono_free_method (newm);
4791 * mono_marshal_get_stfld_wrapper:
4792 * @type: the type of the field
4794 * This method generates a function which can be use to store a field with type
4795 * @type. The generated function has the following signature:
4796 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4799 mono_marshal_get_stfld_wrapper (MonoType *type)
4801 MonoMethodSignature *sig;
4802 MonoMethodBuilder *mb;
4809 type = mono_type_get_underlying_type (type);
4813 if (type->type == MONO_TYPE_SZARRAY) {
4814 klass = mono_defaults.array_class;
4815 } else if (type->type == MONO_TYPE_VALUETYPE) {
4816 klass = type->data.klass;
4817 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4818 klass = mono_defaults.object_class;
4819 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4820 klass = mono_defaults.int_class;
4821 } else if (t == MONO_TYPE_GENERICINST) {
4822 if (mono_type_generic_inst_is_valuetype (type))
4823 klass = mono_class_from_mono_type (type);
4825 klass = mono_defaults.object_class;
4827 klass = mono_class_from_mono_type (type);
4830 klass = mono_defaults.int_class;
4833 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4834 if ((res = mono_marshal_find_in_cache (cache, klass)))
4837 /* we add the %p pointer value of klass because class names are not unique */
4838 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4839 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4842 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4843 sig->params [0] = &mono_defaults.object_class->byval_arg;
4844 sig->params [1] = &mono_defaults.int_class->byval_arg;
4845 sig->params [2] = &mono_defaults.int_class->byval_arg;
4846 sig->params [3] = &mono_defaults.int_class->byval_arg;
4847 sig->params [4] = &klass->byval_arg;
4848 sig->ret = &mono_defaults.void_class->byval_arg;
4850 mono_mb_emit_ldarg (mb, 0);
4851 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4853 mono_mb_emit_ldarg (mb, 0);
4854 mono_mb_emit_ldarg (mb, 1);
4855 mono_mb_emit_ldarg (mb, 2);
4856 mono_mb_emit_ldarg (mb, 4);
4857 if (klass->valuetype)
4858 mono_mb_emit_op (mb, CEE_BOX, klass);
4860 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4862 mono_mb_emit_byte (mb, CEE_RET);
4864 mono_mb_patch_branch (mb, pos);
4866 mono_mb_emit_ldarg (mb, 0);
4867 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4868 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4869 mono_mb_emit_ldarg (mb, 3);
4870 mono_mb_emit_byte (mb, CEE_ADD);
4871 mono_mb_emit_ldarg (mb, 4);
4876 case MONO_TYPE_BOOLEAN:
4877 case MONO_TYPE_CHAR:
4886 case MONO_TYPE_ARRAY:
4887 case MONO_TYPE_SZARRAY:
4888 case MONO_TYPE_OBJECT:
4889 case MONO_TYPE_CLASS:
4890 case MONO_TYPE_STRING:
4894 case MONO_TYPE_FNPTR:
4895 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4897 case MONO_TYPE_VALUETYPE:
4898 g_assert (!klass->enumtype);
4899 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4901 case MONO_TYPE_GENERICINST:
4902 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4905 g_warning ("type %x not implemented", type->type);
4906 g_assert_not_reached ();
4909 mono_mb_emit_byte (mb, CEE_RET);
4911 res = mono_mb_create_and_cache (cache, klass,
4912 mb, sig, sig->param_count + 16);
4919 * generates IL code for the icall wrapper (the generated method
4920 * calls the unmanaged code in func)
4923 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4925 MonoMethodSignature *csig;
4926 MonoMethodBuilder *mb;
4930 g_assert (sig->pinvoke);
4932 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4934 mb->method->save_lmf = 1;
4936 /* we copy the signature, so that we can modify it */
4939 mono_mb_emit_byte (mb, CEE_LDARG_0);
4941 for (i = 0; i < sig->param_count; i++)
4942 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4944 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4945 if (check_exceptions)
4946 emit_thread_interrupt_checkpoint (mb);
4947 mono_mb_emit_byte (mb, CEE_RET);
4949 csig = signature_dup (mono_defaults.corlib, sig);
4951 if (csig->call_convention == MONO_CALL_VARARG)
4952 csig->call_convention = 0;
4954 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4961 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4962 MonoMarshalSpec *spec,
4963 int conv_arg, MonoType **conv_arg_type,
4964 MarshalAction action)
4968 static MonoClass *ICustomMarshaler = NULL;
4969 static MonoMethod *cleanup_native, *cleanup_managed;
4970 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4971 MonoMethod *get_instance;
4972 MonoMethodBuilder *mb = m->mb;
4973 char *exception_msg = NULL;
4977 if (!ICustomMarshaler) {
4978 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4979 g_assert (ICustomMarshaler);
4981 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
4982 g_assert (cleanup_native);
4983 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
4984 g_assert (cleanup_managed);
4985 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
4986 g_assert (marshal_managed_to_native);
4987 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
4988 g_assert (marshal_native_to_managed);
4991 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4992 g_assert (mtype != NULL);
4993 mklass = mono_class_from_mono_type (mtype);
4994 g_assert (mklass != NULL);
4996 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4997 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4999 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5001 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5002 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5003 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5004 (get_sig->params [0]->type != MONO_TYPE_STRING))
5005 get_instance = NULL;
5009 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);
5011 /* Throw exception and emit compensation code if neccesary */
5012 if (exception_msg) {
5014 case MARSHAL_ACTION_CONV_IN:
5015 case MARSHAL_ACTION_CONV_RESULT:
5016 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5017 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5018 mono_mb_emit_byte (mb, CEE_POP);
5020 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5021 g_free (exception_msg);
5024 case MARSHAL_ACTION_PUSH:
5025 mono_mb_emit_byte (mb, CEE_LDNULL);
5033 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5034 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5037 case MARSHAL_ACTION_CONV_IN:
5039 case MONO_TYPE_CLASS:
5040 case MONO_TYPE_OBJECT:
5041 case MONO_TYPE_STRING:
5042 case MONO_TYPE_ARRAY:
5043 case MONO_TYPE_SZARRAY:
5044 case MONO_TYPE_VALUETYPE:
5048 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5049 g_assert_not_reached ();
5053 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5055 mono_mb_emit_byte (mb, CEE_LDNULL);
5056 mono_mb_emit_stloc (mb, conv_arg);
5058 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5061 /* Minic MS.NET behavior */
5062 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5065 /* Check for null */
5066 mono_mb_emit_ldarg (mb, argnum);
5068 mono_mb_emit_byte (mb, CEE_LDIND_I);
5069 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5071 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5073 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5075 mono_mb_emit_ldarg (mb, argnum);
5077 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5079 if (t->type == MONO_TYPE_VALUETYPE) {
5081 * Since we can't determine the type of the argument, we
5082 * will assume the unmanaged function takes a pointer.
5084 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5086 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5089 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5090 mono_mb_emit_stloc (mb, conv_arg);
5092 mono_mb_patch_branch (mb, pos2);
5095 case MARSHAL_ACTION_CONV_OUT:
5096 /* Check for null */
5097 mono_mb_emit_ldloc (mb, conv_arg);
5098 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5101 mono_mb_emit_ldarg (mb, argnum);
5103 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5105 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5107 mono_mb_emit_ldloc (mb, conv_arg);
5108 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5109 mono_mb_emit_byte (mb, CEE_STIND_REF);
5110 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5111 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5113 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5115 mono_mb_emit_ldloc (mb, conv_arg);
5116 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5118 /* We have nowhere to store the result */
5119 mono_mb_emit_byte (mb, CEE_POP);
5122 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5124 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5126 mono_mb_emit_ldloc (mb, conv_arg);
5128 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5130 mono_mb_patch_branch (mb, pos2);
5133 case MARSHAL_ACTION_PUSH:
5135 mono_mb_emit_ldloc_addr (mb, conv_arg);
5137 mono_mb_emit_ldloc (mb, conv_arg);
5140 case MARSHAL_ACTION_CONV_RESULT:
5141 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5143 mono_mb_emit_stloc (mb, 3);
5145 mono_mb_emit_ldloc (mb, 3);
5146 mono_mb_emit_stloc (mb, loc1);
5148 /* Check for null */
5149 mono_mb_emit_ldloc (mb, 3);
5150 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5152 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5154 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5155 mono_mb_emit_byte (mb, CEE_DUP);
5157 mono_mb_emit_ldloc (mb, 3);
5158 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5159 mono_mb_emit_stloc (mb, 3);
5161 mono_mb_emit_ldloc (mb, loc1);
5162 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5164 mono_mb_patch_branch (mb, pos2);
5167 case MARSHAL_ACTION_MANAGED_CONV_IN:
5168 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5170 mono_mb_emit_byte (mb, CEE_LDNULL);
5171 mono_mb_emit_stloc (mb, conv_arg);
5173 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5176 /* Check for null */
5177 mono_mb_emit_ldarg (mb, argnum);
5179 mono_mb_emit_byte (mb, CEE_LDIND_I);
5180 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5182 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5183 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5185 mono_mb_emit_ldarg (mb, argnum);
5187 mono_mb_emit_byte (mb, CEE_LDIND_I);
5189 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5190 mono_mb_emit_stloc (mb, conv_arg);
5192 mono_mb_patch_branch (mb, pos2);
5195 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5196 g_assert (!t->byref);
5198 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5200 mono_mb_emit_stloc (mb, 3);
5202 mono_mb_emit_ldloc (mb, 3);
5203 mono_mb_emit_stloc (mb, loc1);
5205 /* Check for null */
5206 mono_mb_emit_ldloc (mb, 3);
5207 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5209 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5210 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5211 mono_mb_emit_byte (mb, CEE_DUP);
5213 mono_mb_emit_ldloc (mb, 3);
5214 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5215 mono_mb_emit_stloc (mb, 3);
5217 mono_mb_emit_ldloc (mb, loc1);
5218 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5220 mono_mb_patch_branch (mb, pos2);
5223 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5225 /* Check for null */
5226 mono_mb_emit_ldloc (mb, conv_arg);
5227 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5230 mono_mb_emit_ldarg (mb, argnum);
5232 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5234 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5236 mono_mb_emit_ldloc (mb, conv_arg);
5237 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5238 mono_mb_emit_byte (mb, CEE_STIND_I);
5241 /* Call CleanUpManagedData */
5242 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5244 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5246 mono_mb_emit_ldloc (mb, conv_arg);
5247 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5249 mono_mb_patch_branch (mb, pos2);
5253 g_assert_not_reached ();
5260 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5261 MonoMarshalSpec *spec,
5262 int conv_arg, MonoType **conv_arg_type,
5263 MarshalAction action)
5265 MonoMethodBuilder *mb = m->mb;
5268 case MARSHAL_ACTION_CONV_IN: {
5269 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5271 g_assert (t->type == MONO_TYPE_OBJECT);
5272 g_assert (!t->byref);
5274 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5275 mono_mb_emit_ldarg (mb, argnum);
5276 mono_mb_emit_icon (mb, encoding);
5277 mono_mb_emit_icon (mb, t->attrs);
5278 mono_mb_emit_icall (mb, mono_marshal_asany);
5279 mono_mb_emit_stloc (mb, conv_arg);
5283 case MARSHAL_ACTION_PUSH:
5284 mono_mb_emit_ldloc (mb, conv_arg);
5287 case MARSHAL_ACTION_CONV_OUT: {
5288 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5290 mono_mb_emit_ldarg (mb, argnum);
5291 mono_mb_emit_ldloc (mb, conv_arg);
5292 mono_mb_emit_icon (mb, encoding);
5293 mono_mb_emit_icon (mb, t->attrs);
5294 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5299 g_assert_not_reached ();
5306 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5307 MonoMarshalSpec *spec,
5308 int conv_arg, MonoType **conv_arg_type,
5309 MarshalAction action)
5311 MonoMethodBuilder *mb = m->mb;
5315 klass = mono_class_from_mono_type (t);
5318 case MARSHAL_ACTION_CONV_IN:
5319 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5320 klass->blittable || klass->enumtype)
5323 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5325 /* store the address of the source into local variable 0 */
5327 mono_mb_emit_ldarg (mb, argnum);
5329 mono_mb_emit_ldarg_addr (mb, argnum);
5331 mono_mb_emit_stloc (mb, 0);
5333 /* allocate space for the native struct and
5334 * store the address into local variable 1 (dest) */
5335 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5336 mono_mb_emit_byte (mb, CEE_PREFIX1);
5337 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5338 mono_mb_emit_stloc (mb, conv_arg);
5341 mono_mb_emit_ldloc (mb, 0);
5342 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5345 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5347 mono_mb_emit_ldloc (mb, conv_arg);
5348 mono_mb_emit_stloc (mb, 1);
5350 /* emit valuetype conversion code */
5351 emit_struct_conv (mb, klass, FALSE);
5355 mono_mb_patch_branch (mb, pos);
5358 case MARSHAL_ACTION_PUSH:
5359 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5361 g_assert (!t->byref);
5363 /* Have to change the signature since the vtype is passed byref */
5364 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5366 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5367 klass->blittable || klass->enumtype)
5368 mono_mb_emit_ldarg_addr (mb, argnum);
5370 mono_mb_emit_ldloc (mb, conv_arg);
5374 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5375 klass->blittable || klass->enumtype) {
5376 mono_mb_emit_ldarg (mb, argnum);
5379 mono_mb_emit_ldloc (mb, conv_arg);
5381 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5382 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5386 case MARSHAL_ACTION_CONV_OUT:
5387 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5388 klass->blittable || klass->enumtype)
5392 /* dst = argument */
5393 mono_mb_emit_ldarg (mb, argnum);
5394 mono_mb_emit_stloc (mb, 1);
5396 mono_mb_emit_ldloc (mb, 1);
5397 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5399 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5400 /* src = tmp_locals [i] */
5401 mono_mb_emit_ldloc (mb, conv_arg);
5402 mono_mb_emit_stloc (mb, 0);
5404 /* emit valuetype conversion code */
5405 emit_struct_conv (mb, klass, TRUE);
5409 emit_struct_free (mb, klass, conv_arg);
5412 mono_mb_patch_branch (mb, pos);
5415 case MARSHAL_ACTION_CONV_RESULT:
5416 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5418 mono_mb_emit_stloc (mb, 3);
5421 /* load pointer to returned value type */
5422 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5423 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5424 /* store the address of the source into local variable 0 */
5425 mono_mb_emit_stloc (mb, 0);
5427 mono_mb_emit_ldloc_addr (mb, 3);
5428 mono_mb_emit_stloc (mb, 1);
5430 /* emit valuetype conversion code */
5431 emit_struct_conv (mb, klass, TRUE);
5434 case MARSHAL_ACTION_MANAGED_CONV_IN:
5435 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5436 klass->blittable || klass->enumtype) {
5441 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5443 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5447 mono_mb_emit_ldarg (mb, argnum);
5449 mono_mb_emit_ldarg_addr (mb, argnum);
5450 mono_mb_emit_stloc (mb, 0);
5453 mono_mb_emit_ldloc (mb, 0);
5454 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5457 mono_mb_emit_ldloc_addr (mb, conv_arg);
5458 mono_mb_emit_stloc (mb, 1);
5460 /* emit valuetype conversion code */
5461 emit_struct_conv (mb, klass, TRUE);
5464 mono_mb_patch_branch (mb, pos);
5467 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5468 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5469 klass->blittable || klass->enumtype) {
5473 /* Check for null */
5474 mono_mb_emit_ldarg (mb, argnum);
5475 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5478 mono_mb_emit_ldloc_addr (mb, conv_arg);
5479 mono_mb_emit_stloc (mb, 0);
5482 mono_mb_emit_ldarg (mb, argnum);
5483 mono_mb_emit_stloc (mb, 1);
5485 /* emit valuetype conversion code */
5486 emit_struct_conv (mb, klass, FALSE);
5488 mono_mb_patch_branch (mb, pos2);
5491 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5492 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5493 klass->blittable || klass->enumtype) {
5494 mono_mb_emit_stloc (mb, 3);
5499 /* load pointer to returned value type */
5500 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5501 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5503 /* store the address of the source into local variable 0 */
5504 mono_mb_emit_stloc (mb, 0);
5505 /* allocate space for the native struct and
5506 * store the address into dst_ptr */
5507 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5508 m->retobj_class = klass;
5509 g_assert (m->retobj_var);
5510 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5511 mono_mb_emit_byte (mb, CEE_CONV_I);
5512 mono_mb_emit_icall (mb, mono_marshal_alloc);
5513 mono_mb_emit_stloc (mb, 1);
5514 mono_mb_emit_ldloc (mb, 1);
5515 mono_mb_emit_stloc (mb, m->retobj_var);
5517 /* emit valuetype conversion code */
5518 emit_struct_conv (mb, klass, FALSE);
5522 g_assert_not_reached ();
5529 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5530 MonoMarshalSpec *spec,
5531 int conv_arg, MonoType **conv_arg_type,
5532 MarshalAction action)
5534 MonoMethodBuilder *mb = m->mb;
5535 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5536 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5540 case MARSHAL_ACTION_CONV_IN:
5541 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5542 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5545 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5548 mono_mb_emit_ldarg (mb, argnum);
5549 mono_mb_emit_byte (mb, CEE_LDIND_I);
5551 mono_mb_emit_ldarg (mb, argnum);
5555 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5556 MonoException *exc = mono_get_exception_not_implemented (msg);
5559 mono_raise_exception (exc);
5562 mono_mb_emit_icall (mb, conv_to_icall (conv));
5564 mono_mb_emit_stloc (mb, conv_arg);
5567 case MARSHAL_ACTION_CONV_OUT:
5568 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5570 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5571 mono_mb_emit_exception_marshal_directive (mb, msg);
5575 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5576 mono_mb_emit_ldarg (mb, argnum);
5577 mono_mb_emit_ldloc (mb, conv_arg);
5578 mono_mb_emit_icall (mb, conv_to_icall (conv));
5579 mono_mb_emit_byte (mb, CEE_STIND_REF);
5582 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5583 mono_mb_emit_ldloc (mb, conv_arg);
5584 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5585 mono_mb_emit_icall (mb, mono_free_bstr);
5587 mono_mb_emit_icall (mb, mono_marshal_free);
5591 case MARSHAL_ACTION_PUSH:
5593 mono_mb_emit_ldloc_addr (mb, conv_arg);
5595 mono_mb_emit_ldloc (mb, conv_arg);
5598 case MARSHAL_ACTION_CONV_RESULT:
5599 mono_mb_emit_stloc (mb, 0);
5601 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5603 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5604 mono_mb_emit_exception_marshal_directive (mb, msg);
5608 mono_mb_emit_ldloc (mb, 0);
5609 mono_mb_emit_icall (mb, conv_to_icall (conv));
5610 mono_mb_emit_stloc (mb, 3);
5612 /* free the string */
5613 mono_mb_emit_ldloc (mb, 0);
5614 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5615 mono_mb_emit_icall (mb, mono_free_bstr);
5617 mono_mb_emit_icall (mb, mono_marshal_free);
5620 case MARSHAL_ACTION_MANAGED_CONV_IN:
5621 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5623 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5625 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5627 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5628 mono_mb_emit_exception_marshal_directive (mb, msg);
5632 mono_mb_emit_ldarg (mb, argnum);
5634 mono_mb_emit_byte (mb, CEE_LDIND_I);
5635 mono_mb_emit_icall (mb, conv_to_icall (conv));
5636 mono_mb_emit_stloc (mb, conv_arg);
5639 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5642 mono_mb_emit_ldarg (mb, argnum);
5643 mono_mb_emit_ldloc (mb, conv_arg);
5644 mono_mb_emit_icall (mb, conv_to_icall (conv));
5645 mono_mb_emit_byte (mb, CEE_STIND_I);
5650 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5651 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5652 /* We need to make a copy so the caller is able to free it */
5653 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5655 mono_mb_emit_icall (mb, conv_to_icall (conv));
5656 mono_mb_emit_stloc (mb, 3);
5660 g_assert_not_reached ();
5667 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5668 MonoMarshalSpec *spec, int conv_arg,
5669 MonoType **conv_arg_type, MarshalAction action)
5671 MonoMethodBuilder *mb = m->mb;
5674 case MARSHAL_ACTION_CONV_IN: {
5675 MonoType *intptr_type;
5676 int dar_release_slot, pos;
5678 intptr_type = &mono_defaults.int_class->byval_arg;
5679 conv_arg = mono_mb_add_local (mb, intptr_type);
5680 *conv_arg_type = intptr_type;
5682 if (!sh_dangerous_add_ref)
5683 init_safe_handle ();
5685 mono_mb_emit_ldarg (mb, argnum);
5686 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5687 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5689 mono_mb_patch_branch (mb, pos);
5692 * My tests in show that ref SafeHandles are not really
5693 * passed as ref objects. Instead a NULL is passed as the
5696 mono_mb_emit_icon (mb, 0);
5697 mono_mb_emit_stloc (mb, conv_arg);
5701 /* Create local to hold the ref parameter to DangerousAddRef */
5702 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5704 /* set release = false; */
5705 mono_mb_emit_icon (mb, 0);
5706 mono_mb_emit_stloc (mb, dar_release_slot);
5708 /* safehandle.DangerousAddRef (ref release) */
5709 mono_mb_emit_ldarg (mb, argnum);
5710 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5711 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5713 /* Pull the handle field from SafeHandle */
5714 mono_mb_emit_ldarg (mb, argnum);
5715 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5716 mono_mb_emit_byte (mb, CEE_LDIND_I);
5717 mono_mb_emit_stloc (mb, conv_arg);
5722 case MARSHAL_ACTION_PUSH:
5724 mono_mb_emit_ldloc_addr (mb, conv_arg);
5726 mono_mb_emit_ldloc (mb, conv_arg);
5729 case MARSHAL_ACTION_CONV_OUT: {
5730 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5731 int dar_release_slot = conv_arg + 1;
5734 if (!sh_dangerous_release)
5735 init_safe_handle ();
5741 * My tests indicate that ref SafeHandles parameters are not actually
5742 * passed by ref, but instead a new Handle is created regardless of
5743 * whether a change happens in the unmanaged side.
5745 * Also, the Handle is created before calling into unmanaged code,
5746 * but we do not support that mechanism (getting to the original
5747 * handle) and it makes no difference where we create this
5749 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5751 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5754 /* refval = new SafeHandleDerived ()*/
5755 mono_mb_emit_ldarg (mb, argnum);
5756 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5757 mono_mb_emit_byte (mb, CEE_STIND_REF);
5759 /* refval.handle = returned_handle */
5760 mono_mb_emit_ldarg (mb, argnum);
5761 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5762 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5763 mono_mb_emit_ldloc (mb, conv_arg);
5764 mono_mb_emit_byte (mb, CEE_STIND_I);
5766 mono_mb_emit_ldloc (mb, dar_release_slot);
5767 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5768 mono_mb_emit_ldarg (mb, argnum);
5769 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5770 mono_mb_patch_branch (mb, label_next);
5775 case MARSHAL_ACTION_CONV_RESULT: {
5776 MonoMethod *ctor = NULL;
5777 int intptr_handle_slot;
5779 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5780 mono_mb_emit_byte (mb, CEE_POP);
5781 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
5785 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5787 mono_mb_emit_byte (mb, CEE_POP);
5788 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5791 /* Store the IntPtr results into a local */
5792 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5793 mono_mb_emit_stloc (mb, intptr_handle_slot);
5795 /* Create return value */
5796 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5797 mono_mb_emit_stloc (mb, 3);
5799 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5800 mono_mb_emit_ldloc (mb, 3);
5801 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5802 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5803 mono_mb_emit_byte (mb, CEE_STIND_I);
5807 case MARSHAL_ACTION_MANAGED_CONV_IN:
5808 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5811 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5812 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5815 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5816 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5819 printf ("Unhandled case for MarshalAction: %d\n", action);
5826 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5827 MonoMarshalSpec *spec, int conv_arg,
5828 MonoType **conv_arg_type, MarshalAction action)
5830 MonoMethodBuilder *mb = m->mb;
5833 case MARSHAL_ACTION_CONV_IN: {
5834 MonoType *intptr_type;
5836 intptr_type = &mono_defaults.int_class->byval_arg;
5837 conv_arg = mono_mb_add_local (mb, intptr_type);
5838 *conv_arg_type = intptr_type;
5841 mono_mb_emit_exception_marshal_directive (mb,
5842 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5845 mono_mb_emit_ldarg_addr (mb, argnum);
5846 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
5847 mono_mb_emit_byte (mb, CEE_ADD);
5848 mono_mb_emit_byte (mb, CEE_LDIND_I);
5849 mono_mb_emit_stloc (mb, conv_arg);
5853 case MARSHAL_ACTION_PUSH:
5854 mono_mb_emit_ldloc (mb, conv_arg);
5857 case MARSHAL_ACTION_CONV_OUT: {
5858 /* no resource release required */
5862 case MARSHAL_ACTION_CONV_RESULT: {
5863 mono_mb_emit_exception_marshal_directive (mb,
5864 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5868 case MARSHAL_ACTION_MANAGED_CONV_IN:
5869 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5872 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5873 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5876 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5877 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5880 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5887 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5888 MonoMarshalSpec *spec,
5889 int conv_arg, MonoType **conv_arg_type,
5890 MarshalAction action)
5892 MonoMethodBuilder *mb = m->mb;
5893 MonoClass *klass = mono_class_from_mono_type (t);
5897 case MARSHAL_ACTION_CONV_IN:
5898 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5899 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5901 m->orig_conv_args [argnum] = 0;
5903 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5904 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5905 mono_mb_emit_exception_marshal_directive (mb, msg);
5909 if (klass->delegate) {
5911 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5912 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5913 mono_mb_emit_exception_marshal_directive (mb, msg);
5915 mono_mb_emit_byte (mb, CEE_LDNULL);
5916 mono_mb_emit_stloc (mb, conv_arg);
5918 mono_mb_emit_ldarg (mb, argnum);
5919 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5920 mono_mb_emit_stloc (mb, conv_arg);
5922 } else if (klass == mono_defaults.stringbuilder_class) {
5923 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5924 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5926 g_assert (!t->byref);
5927 mono_mb_emit_ldarg (mb, argnum);
5930 mono_mb_emit_icall (mb, conv_to_icall (conv));
5932 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5933 MonoException *exc = mono_get_exception_not_implemented (msg);
5936 mono_raise_exception (exc);
5939 mono_mb_emit_stloc (mb, conv_arg);
5940 } else if (klass->blittable) {
5941 mono_mb_emit_byte (mb, CEE_LDNULL);
5942 mono_mb_emit_stloc (mb, conv_arg);
5944 mono_mb_emit_ldarg (mb, argnum);
5945 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5947 mono_mb_emit_ldarg (mb, argnum);
5948 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5949 mono_mb_emit_stloc (mb, conv_arg);
5951 mono_mb_patch_branch (mb, pos);
5954 mono_mb_emit_byte (mb, CEE_LDNULL);
5955 mono_mb_emit_stloc (mb, conv_arg);
5958 /* we dont need any conversions for out parameters */
5959 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5962 mono_mb_emit_ldarg (mb, argnum);
5963 mono_mb_emit_byte (mb, CEE_LDIND_I);
5966 mono_mb_emit_ldarg (mb, argnum);
5967 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5968 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5971 /* store the address of the source into local variable 0 */
5972 mono_mb_emit_stloc (mb, 0);
5973 mono_mb_emit_ldloc (mb, 0);
5974 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5976 /* allocate space for the native struct and store the address */
5977 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5978 mono_mb_emit_byte (mb, CEE_PREFIX1);
5979 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5980 mono_mb_emit_stloc (mb, conv_arg);
5983 /* Need to store the original buffer so we can free it later */
5984 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5985 mono_mb_emit_ldloc (mb, conv_arg);
5986 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5989 /* set the src_ptr */
5990 mono_mb_emit_ldloc (mb, 0);
5991 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5992 mono_mb_emit_stloc (mb, 0);
5995 mono_mb_emit_ldloc (mb, conv_arg);
5996 mono_mb_emit_stloc (mb, 1);
5998 /* emit valuetype conversion code */
5999 emit_struct_conv (mb, klass, FALSE);
6001 mono_mb_patch_branch (mb, pos);
6005 case MARSHAL_ACTION_CONV_OUT:
6006 if (klass == mono_defaults.stringbuilder_class) {
6008 MonoMarshalNative encoding;
6009 MonoMarshalConv conv;
6011 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6012 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6014 g_assert (!t->byref);
6015 g_assert (encoding != -1);
6017 mono_mb_emit_ldarg (mb, argnum);
6018 mono_mb_emit_ldloc (mb, conv_arg);
6020 mono_mb_emit_icall (mb, conv_to_icall (conv));
6023 mono_mb_emit_ldloc (mb, conv_arg);
6024 mono_mb_emit_icall (mb, mono_marshal_free);
6029 if (klass->delegate) {
6031 mono_mb_emit_ldarg (mb, argnum);
6032 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6033 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6034 mono_mb_emit_ldloc (mb, conv_arg);
6035 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6036 mono_mb_emit_byte (mb, CEE_STIND_REF);
6041 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6042 /* allocate a new object */
6043 mono_mb_emit_ldarg (mb, argnum);
6044 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6045 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6046 mono_mb_emit_byte (mb, CEE_STIND_REF);
6049 /* dst = *argument */
6050 mono_mb_emit_ldarg (mb, argnum);
6053 mono_mb_emit_byte (mb, CEE_LDIND_I);
6055 mono_mb_emit_stloc (mb, 1);
6057 mono_mb_emit_ldloc (mb, 1);
6058 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6060 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6061 mono_mb_emit_ldloc (mb, 1);
6062 mono_mb_emit_icon (mb, sizeof (MonoObject));
6063 mono_mb_emit_byte (mb, CEE_ADD);
6064 mono_mb_emit_stloc (mb, 1);
6066 /* src = tmp_locals [i] */
6067 mono_mb_emit_ldloc (mb, conv_arg);
6068 mono_mb_emit_stloc (mb, 0);
6070 /* emit valuetype conversion code */
6071 emit_struct_conv (mb, klass, TRUE);
6073 /* Free the structure returned by the native code */
6074 emit_struct_free (mb, klass, conv_arg);
6076 if (m->orig_conv_args [argnum]) {
6078 * If the native function changed the pointer, then free
6079 * the original structure plus the new pointer.
6081 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6082 mono_mb_emit_ldloc (mb, conv_arg);
6083 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6085 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6086 g_assert (m->orig_conv_args [argnum]);
6088 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6091 mono_mb_emit_ldloc (mb, conv_arg);
6092 mono_mb_emit_icall (mb, g_free);
6094 mono_mb_patch_branch (mb, pos2);
6098 /* Free the original structure passed to native code */
6099 emit_struct_free (mb, klass, conv_arg);
6101 mono_mb_patch_branch (mb, pos);
6104 case MARSHAL_ACTION_PUSH:
6106 mono_mb_emit_ldloc_addr (mb, conv_arg);
6108 mono_mb_emit_ldloc (mb, conv_arg);
6111 case MARSHAL_ACTION_CONV_RESULT:
6112 if (klass->delegate) {
6113 g_assert (!t->byref);
6114 mono_mb_emit_stloc (mb, 0);
6115 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6116 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6117 mono_mb_emit_ldloc (mb, 0);
6118 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6119 mono_mb_emit_stloc (mb, 3);
6122 mono_mb_emit_stloc (mb, 0);
6124 /* Make a copy since emit_conv modifies local 0 */
6125 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6126 mono_mb_emit_ldloc (mb, 0);
6127 mono_mb_emit_stloc (mb, loc);
6129 mono_mb_emit_byte (mb, CEE_LDNULL);
6130 mono_mb_emit_stloc (mb, 3);
6132 mono_mb_emit_ldloc (mb, 0);
6133 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6135 /* allocate result object */
6137 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6138 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6139 mono_mb_emit_stloc (mb, 3);
6143 mono_mb_emit_ldloc (mb, 3);
6144 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6145 mono_mb_emit_stloc (mb, 1);
6147 /* emit conversion code */
6148 emit_struct_conv (mb, klass, TRUE);
6150 emit_struct_free (mb, klass, loc);
6152 /* Free the pointer allocated by unmanaged code */
6153 mono_mb_emit_ldloc (mb, loc);
6154 mono_mb_emit_icall (mb, g_free);
6155 mono_mb_patch_branch (mb, pos);
6159 case MARSHAL_ACTION_MANAGED_CONV_IN:
6160 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6162 if (klass->delegate) {
6163 g_assert (!t->byref);
6164 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6165 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6166 mono_mb_emit_ldarg (mb, argnum);
6167 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6168 mono_mb_emit_stloc (mb, conv_arg);
6172 if (klass == mono_defaults.stringbuilder_class) {
6173 MonoMarshalNative encoding;
6175 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6178 g_assert (encoding == MONO_NATIVE_LPSTR);
6180 g_assert (!t->byref);
6181 g_assert (encoding != -1);
6183 mono_mb_emit_ldarg (mb, argnum);
6184 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6185 mono_mb_emit_stloc (mb, conv_arg);
6189 /* The class can not have an automatic layout */
6190 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6191 mono_mb_emit_auto_layout_exception (mb, klass);
6195 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6196 mono_mb_emit_byte (mb, CEE_LDNULL);
6197 mono_mb_emit_stloc (mb, conv_arg);
6202 mono_mb_emit_ldarg (mb, argnum);
6206 /* Check for NULL and raise an exception */
6207 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6209 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6211 mono_mb_patch_branch (mb, pos2);
6212 mono_mb_emit_ldarg (mb, argnum);
6213 mono_mb_emit_byte (mb, CEE_LDIND_I);
6216 mono_mb_emit_stloc (mb, 0);
6218 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6219 mono_mb_emit_stloc (mb, conv_arg);
6221 mono_mb_emit_ldloc (mb, 0);
6222 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6224 /* Create and set dst */
6225 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6226 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6227 mono_mb_emit_stloc (mb, conv_arg);
6228 mono_mb_emit_ldloc (mb, conv_arg);
6229 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6230 mono_mb_emit_stloc (mb, 1);
6232 /* emit valuetype conversion code */
6233 emit_struct_conv (mb, klass, TRUE);
6235 mono_mb_patch_branch (mb, pos);
6238 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6240 /* Check for null */
6241 mono_mb_emit_ldloc (mb, conv_arg);
6242 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6243 mono_mb_emit_ldarg (mb, argnum);
6244 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6245 mono_mb_emit_byte (mb, CEE_STIND_REF);
6246 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6248 mono_mb_patch_branch (mb, pos);
6251 mono_mb_emit_ldloc (mb, conv_arg);
6252 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6253 mono_mb_emit_stloc (mb, 0);
6255 /* Allocate and set dest */
6256 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6257 mono_mb_emit_byte (mb, CEE_CONV_I);
6258 mono_mb_emit_icall (mb, mono_marshal_alloc);
6259 mono_mb_emit_stloc (mb, 1);
6261 /* Update argument pointer */
6262 mono_mb_emit_ldarg (mb, argnum);
6263 mono_mb_emit_ldloc (mb, 1);
6264 mono_mb_emit_byte (mb, CEE_STIND_I);
6266 /* emit valuetype conversion code */
6267 emit_struct_conv (mb, klass, FALSE);
6269 mono_mb_patch_branch (mb, pos2);
6271 /* byval [Out] marshalling */
6273 /* FIXME: Handle null */
6276 mono_mb_emit_ldloc (mb, conv_arg);
6277 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6278 mono_mb_emit_stloc (mb, 0);
6281 mono_mb_emit_ldarg (mb, argnum);
6282 mono_mb_emit_stloc (mb, 1);
6284 /* emit valuetype conversion code */
6285 emit_struct_conv (mb, klass, FALSE);
6289 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6290 if (klass->delegate) {
6291 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6292 mono_mb_emit_stloc (mb, 3);
6296 /* The class can not have an automatic layout */
6297 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6298 mono_mb_emit_auto_layout_exception (mb, klass);
6302 mono_mb_emit_stloc (mb, 0);
6303 /* Check for null */
6304 mono_mb_emit_ldloc (mb, 0);
6305 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6306 mono_mb_emit_byte (mb, CEE_LDNULL);
6307 mono_mb_emit_stloc (mb, 3);
6308 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6310 mono_mb_patch_branch (mb, pos);
6313 mono_mb_emit_ldloc (mb, 0);
6314 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6315 mono_mb_emit_stloc (mb, 0);
6317 /* Allocate and set dest */
6318 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6319 mono_mb_emit_byte (mb, CEE_CONV_I);
6320 mono_mb_emit_icall (mb, mono_marshal_alloc);
6321 mono_mb_emit_byte (mb, CEE_DUP);
6322 mono_mb_emit_stloc (mb, 1);
6323 mono_mb_emit_stloc (mb, 3);
6325 emit_struct_conv (mb, klass, FALSE);
6327 mono_mb_patch_branch (mb, pos2);
6331 g_assert_not_reached ();
6338 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6339 MonoMarshalSpec *spec,
6340 int conv_arg, MonoType **conv_arg_type,
6341 MarshalAction action)
6343 MonoMethodBuilder *mb = m->mb;
6344 static MonoMethod *get_object_for_native_variant = NULL;
6345 static MonoMethod *get_native_variant_for_object = NULL;
6347 mono_init_com_types ();
6349 if (!get_object_for_native_variant)
6350 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6351 g_assert (get_object_for_native_variant);
6353 if (!get_native_variant_for_object)
6354 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6355 g_assert (get_native_variant_for_object);
6358 case MARSHAL_ACTION_CONV_IN: {
6359 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6362 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6364 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6366 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6369 mono_mb_emit_ldarg (mb, argnum);
6371 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6372 mono_mb_emit_ldloc_addr (mb, conv_arg);
6373 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6377 case MARSHAL_ACTION_CONV_OUT: {
6378 static MonoMethod *variant_clear = NULL;
6381 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6382 g_assert (variant_clear);
6385 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6386 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_ldloc_addr (mb, conv_arg);
6388 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6389 mono_mb_emit_byte (mb, CEE_STIND_REF);
6392 mono_mb_emit_ldloc_addr (mb, conv_arg);
6393 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6397 case MARSHAL_ACTION_PUSH:
6399 mono_mb_emit_ldloc_addr (mb, conv_arg);
6401 mono_mb_emit_ldloc (mb, conv_arg);
6404 case MARSHAL_ACTION_CONV_RESULT: {
6405 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6406 mono_mb_emit_exception_marshal_directive (mb, msg);
6410 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6411 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6414 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6416 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6418 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6422 mono_mb_emit_ldarg (mb, argnum);
6424 mono_mb_emit_ldarg_addr (mb, argnum);
6425 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6426 mono_mb_emit_stloc (mb, conv_arg);
6430 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6431 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6432 mono_mb_emit_ldloc (mb, conv_arg);
6433 mono_mb_emit_ldarg (mb, argnum);
6434 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6439 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6440 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6441 mono_mb_emit_exception_marshal_directive (mb, msg);
6446 g_assert_not_reached ();
6453 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6454 MonoMarshalSpec *spec,
6455 int conv_arg, MonoType **conv_arg_type,
6456 MarshalAction action)
6458 MonoMethodBuilder *mb = m->mb;
6459 MonoClass *klass = mono_class_from_mono_type (t);
6460 gboolean need_convert, need_free;
6461 MonoMarshalNative encoding;
6463 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6466 case MARSHAL_ACTION_CONV_IN:
6467 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6468 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6470 if (klass->element_class->blittable) {
6471 mono_mb_emit_ldarg (mb, argnum);
6473 mono_mb_emit_byte (mb, CEE_LDIND_I);
6474 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6475 mono_mb_emit_stloc (mb, conv_arg);
6478 guint32 label1, label2, label3;
6479 int index_var, src_var, dest_ptr, esize;
6480 MonoMarshalConv conv;
6481 gboolean is_string = FALSE;
6483 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6485 eklass = klass->element_class;
6487 if (eklass == mono_defaults.string_class) {
6489 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6491 else if (eklass == mono_defaults.stringbuilder_class) {
6493 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6498 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6499 mono_mb_emit_ldarg (mb, argnum);
6501 mono_mb_emit_byte (mb, CEE_LDIND_I);
6502 mono_mb_emit_stloc (mb, src_var);
6505 mono_mb_emit_ldloc (mb, src_var);
6506 mono_mb_emit_stloc (mb, conv_arg);
6507 mono_mb_emit_ldloc (mb, src_var);
6508 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6512 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6513 MonoException *exc = mono_get_exception_not_implemented (msg);
6516 mono_raise_exception (exc);
6521 esize = sizeof (gpointer);
6523 esize = mono_class_native_size (eklass, NULL);
6525 /* allocate space for the native struct and store the address */
6526 mono_mb_emit_icon (mb, esize);
6527 mono_mb_emit_ldloc (mb, src_var);
6528 mono_mb_emit_byte (mb, CEE_LDLEN);
6530 if (eklass == mono_defaults.string_class) {
6531 /* Make the array bigger for the terminating null */
6532 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6533 mono_mb_emit_byte (mb, CEE_ADD);
6535 mono_mb_emit_byte (mb, CEE_MUL);
6536 mono_mb_emit_byte (mb, CEE_PREFIX1);
6537 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6538 mono_mb_emit_stloc (mb, conv_arg);
6540 mono_mb_emit_ldloc (mb, conv_arg);
6541 mono_mb_emit_stloc (mb, dest_ptr);
6543 /* Emit marshalling loop */
6544 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6545 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6546 mono_mb_emit_stloc (mb, index_var);
6547 label2 = mono_mb_get_label (mb);
6548 mono_mb_emit_ldloc (mb, index_var);
6549 mono_mb_emit_ldloc (mb, src_var);
6550 mono_mb_emit_byte (mb, CEE_LDLEN);
6551 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6553 /* Emit marshalling code */
6556 mono_mb_emit_ldloc (mb, dest_ptr);
6557 mono_mb_emit_ldloc (mb, src_var);
6558 mono_mb_emit_ldloc (mb, index_var);
6559 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6560 mono_mb_emit_icall (mb, conv_to_icall (conv));
6561 mono_mb_emit_byte (mb, CEE_STIND_I);
6563 /* set the src_ptr */
6564 mono_mb_emit_ldloc (mb, src_var);
6565 mono_mb_emit_ldloc (mb, index_var);
6566 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6567 mono_mb_emit_stloc (mb, 0);
6570 mono_mb_emit_ldloc (mb, dest_ptr);
6571 mono_mb_emit_stloc (mb, 1);
6573 /* emit valuetype conversion code */
6574 emit_struct_conv (mb, eklass, FALSE);
6577 mono_mb_emit_add_to_local (mb, index_var, 1);
6578 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6580 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6582 mono_mb_patch_branch (mb, label3);
6584 if (eklass == mono_defaults.string_class) {
6585 /* Null terminate */
6586 mono_mb_emit_ldloc (mb, dest_ptr);
6587 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6588 mono_mb_emit_byte (mb, CEE_STIND_REF);
6591 mono_mb_patch_branch (mb, label1);
6596 case MARSHAL_ACTION_CONV_OUT:
6597 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6598 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);
6599 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6602 if (need_convert || need_free) {
6603 /* FIXME: Optimize blittable case */
6605 guint32 label1, label2, label3;
6606 int index_var, src_ptr, loc, esize;
6608 eklass = klass->element_class;
6609 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6610 esize = sizeof (gpointer);
6612 esize = mono_class_native_size (eklass, NULL);
6613 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6614 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6617 mono_mb_emit_ldarg (mb, argnum);
6619 mono_mb_emit_byte (mb, CEE_LDIND_I);
6620 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6622 mono_mb_emit_ldloc (mb, conv_arg);
6623 mono_mb_emit_stloc (mb, src_ptr);
6625 /* Emit marshalling loop */
6626 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6627 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6628 mono_mb_emit_stloc (mb, index_var);
6629 label2 = mono_mb_get_label (mb);
6630 mono_mb_emit_ldloc (mb, index_var);
6631 mono_mb_emit_ldarg (mb, argnum);
6633 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6634 mono_mb_emit_byte (mb, CEE_LDLEN);
6635 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6637 /* Emit marshalling code */
6639 if (eklass == mono_defaults.stringbuilder_class) {
6640 gboolean need_free2;
6641 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6643 g_assert (conv != -1);
6646 mono_mb_emit_ldarg (mb, argnum);
6648 mono_mb_emit_byte (mb, CEE_LDIND_I);
6649 mono_mb_emit_ldloc (mb, index_var);
6650 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6653 mono_mb_emit_ldloc (mb, src_ptr);
6654 mono_mb_emit_byte (mb, CEE_LDIND_I);
6656 mono_mb_emit_icall (mb, conv_to_icall (conv));
6660 mono_mb_emit_ldloc (mb, src_ptr);
6661 mono_mb_emit_byte (mb, CEE_LDIND_I);
6663 mono_mb_emit_icall (mb, mono_marshal_free);
6666 else if (eklass == mono_defaults.string_class) {
6669 mono_mb_emit_ldloc (mb, src_ptr);
6670 mono_mb_emit_byte (mb, CEE_LDIND_I);
6672 mono_mb_emit_icall (mb, mono_marshal_free);
6677 /* set the src_ptr */
6678 mono_mb_emit_ldloc (mb, src_ptr);
6679 mono_mb_emit_stloc (mb, 0);
6682 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6685 mono_mb_emit_ldloc (mb, index_var);
6686 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6687 mono_mb_emit_stloc (mb, 1);
6689 /* emit valuetype conversion code */
6690 emit_struct_conv (mb, eklass, TRUE);
6694 mono_mb_emit_ldloc (mb, src_ptr);
6695 mono_mb_emit_stloc (mb, loc);
6696 mono_mb_emit_ldloc (mb, loc);
6698 emit_struct_free (mb, eklass, loc);
6702 mono_mb_emit_add_to_local (mb, index_var, 1);
6703 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6705 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6707 mono_mb_patch_branch (mb, label1);
6708 mono_mb_patch_branch (mb, label3);
6712 case MARSHAL_ACTION_PUSH:
6714 mono_mb_emit_ldloc_addr (mb, conv_arg);
6716 mono_mb_emit_ldloc (mb, conv_arg);
6719 case MARSHAL_ACTION_CONV_RESULT:
6720 /* fixme: we need conversions here */
6721 mono_mb_emit_stloc (mb, 3);
6724 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6726 guint32 label1, label2, label3;
6727 int index_var, src_ptr, loc, esize, param_num, num_elem;
6728 MonoMarshalConv conv;
6729 gboolean is_string = FALSE;
6731 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6732 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6735 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6736 mono_mb_emit_exception_marshal_directive (mb, msg);
6740 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6741 mono_mb_emit_exception_marshal_directive (mb, msg);
6744 if (spec->native != MONO_NATIVE_LPARRAY) {
6745 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6746 mono_mb_emit_exception_marshal_directive (mb, msg);
6750 /* FIXME: t is from the method which is wrapped, not the delegate type */
6751 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6753 param_num = spec->data.array_data.param_num;
6754 num_elem = spec->data.array_data.num_elem;
6755 if (spec->data.array_data.elem_mult == 0)
6756 /* param_num is not specified */
6759 if (param_num == -1) {
6760 if (num_elem <= 0) {
6761 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6762 mono_mb_emit_exception_marshal_directive (mb, msg);
6767 /* FIXME: Optimize blittable case */
6769 eklass = klass->element_class;
6770 if (eklass == mono_defaults.string_class) {
6772 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6774 else if (eklass == mono_defaults.stringbuilder_class) {
6776 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6781 mono_marshal_load_type_info (eklass);
6784 esize = sizeof (gpointer);
6786 esize = mono_class_native_size (eklass, NULL);
6787 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6788 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6790 mono_mb_emit_byte (mb, CEE_LDNULL);
6791 mono_mb_emit_stloc (mb, conv_arg);
6793 /* Check param index */
6794 if (param_num != -1) {
6795 if (param_num >= m->sig->param_count) {
6796 char *msg = g_strdup ("Array size control parameter index is out of range.");
6797 mono_mb_emit_exception_marshal_directive (mb, msg);
6800 switch (m->sig->params [param_num]->type) {
6813 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6814 mono_mb_emit_exception_marshal_directive (mb, msg);
6821 mono_mb_emit_ldarg (mb, argnum);
6822 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6824 mono_mb_emit_ldarg (mb, argnum);
6825 mono_mb_emit_stloc (mb, src_ptr);
6827 /* Create managed array */
6829 * The LPArray marshalling spec says that sometimes param_num starts
6830 * from 1, sometimes it starts from 0. But MS seems to allways start
6834 if (param_num == -1)
6835 mono_mb_emit_icon (mb, num_elem);
6837 /* FIXME: Add the two together */
6838 mono_mb_emit_ldarg (mb, param_num);
6840 mono_mb_emit_icon (mb, num_elem);
6841 mono_mb_emit_byte (mb, CEE_ADD);
6845 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6846 mono_mb_emit_stloc (mb, conv_arg);
6848 if (eklass->blittable) {
6849 mono_mb_emit_ldloc (mb, conv_arg);
6850 mono_mb_emit_byte (mb, CEE_CONV_I);
6851 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6852 mono_mb_emit_byte (mb, CEE_ADD);
6853 mono_mb_emit_ldarg (mb, argnum);
6854 mono_mb_emit_ldloc (mb, conv_arg);
6855 mono_mb_emit_byte (mb, CEE_LDLEN);
6856 mono_mb_emit_icon (mb, esize);
6857 mono_mb_emit_byte (mb, CEE_MUL);
6858 mono_mb_emit_byte (mb, CEE_PREFIX1);
6859 mono_mb_emit_byte (mb, CEE_CPBLK);
6863 /* Emit marshalling loop */
6864 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6865 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6866 mono_mb_emit_stloc (mb, index_var);
6867 label2 = mono_mb_get_label (mb);
6868 mono_mb_emit_ldloc (mb, index_var);
6869 mono_mb_emit_ldloc (mb, conv_arg);
6870 mono_mb_emit_byte (mb, CEE_LDLEN);
6871 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6873 /* Emit marshalling code */
6875 g_assert (conv != -1);
6877 mono_mb_emit_ldloc (mb, conv_arg);
6878 mono_mb_emit_ldloc (mb, index_var);
6880 mono_mb_emit_ldloc (mb, src_ptr);
6881 mono_mb_emit_byte (mb, CEE_LDIND_I);
6883 mono_mb_emit_icall (mb, conv_to_icall (conv));
6884 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6887 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6888 mono_mb_emit_exception_marshal_directive (mb, msg);
6892 mono_mb_emit_add_to_local (mb, index_var, 1);
6893 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6895 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6897 mono_mb_patch_branch (mb, label1);
6898 mono_mb_patch_branch (mb, label3);
6902 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6904 guint32 label1, label2, label3;
6905 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6906 MonoMarshalConv conv;
6907 gboolean is_string = FALSE;
6910 /* Already handled in CONV_IN */
6913 /* These are already checked in CONV_IN */
6914 g_assert (!t->byref);
6915 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6916 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6918 param_num = spec->data.array_data.param_num;
6919 num_elem = spec->data.array_data.num_elem;
6921 if (spec->data.array_data.elem_mult == 0)
6922 /* param_num is not specified */
6925 if (param_num == -1) {
6926 if (num_elem <= 0) {
6927 g_assert_not_reached ();
6931 /* FIXME: Optimize blittable case */
6933 eklass = klass->element_class;
6934 if (eklass == mono_defaults.string_class) {
6936 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6938 else if (eklass == mono_defaults.stringbuilder_class) {
6940 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6945 mono_marshal_load_type_info (eklass);
6948 esize = sizeof (gpointer);
6950 esize = mono_class_native_size (eklass, NULL);
6952 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6953 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6956 mono_mb_emit_ldloc (mb, conv_arg);
6957 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6959 mono_mb_emit_ldarg (mb, argnum);
6960 mono_mb_emit_stloc (mb, dest_ptr);
6962 if (eklass->blittable) {
6964 mono_mb_emit_ldarg (mb, argnum);
6966 mono_mb_emit_ldloc (mb, conv_arg);
6967 mono_mb_emit_byte (mb, CEE_CONV_I);
6968 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6969 mono_mb_emit_byte (mb, CEE_ADD);
6971 mono_mb_emit_ldloc (mb, conv_arg);
6972 mono_mb_emit_byte (mb, CEE_LDLEN);
6973 mono_mb_emit_icon (mb, esize);
6974 mono_mb_emit_byte (mb, CEE_MUL);
6975 mono_mb_emit_byte (mb, CEE_PREFIX1);
6976 mono_mb_emit_byte (mb, CEE_CPBLK);
6980 /* Emit marshalling loop */
6981 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6982 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6983 mono_mb_emit_stloc (mb, index_var);
6984 label2 = mono_mb_get_label (mb);
6985 mono_mb_emit_ldloc (mb, index_var);
6986 mono_mb_emit_ldloc (mb, conv_arg);
6987 mono_mb_emit_byte (mb, CEE_LDLEN);
6988 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6990 /* Emit marshalling code */
6992 g_assert (conv != -1);
6995 mono_mb_emit_ldloc (mb, dest_ptr);
6998 mono_mb_emit_ldloc (mb, conv_arg);
6999 mono_mb_emit_ldloc (mb, index_var);
7001 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7003 mono_mb_emit_icall (mb, conv_to_icall (conv));
7004 mono_mb_emit_byte (mb, CEE_STIND_I);
7007 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7008 mono_mb_emit_exception_marshal_directive (mb, msg);
7012 mono_mb_emit_add_to_local (mb, index_var, 1);
7013 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7015 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7017 mono_mb_patch_branch (mb, label1);
7018 mono_mb_patch_branch (mb, label3);
7022 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7024 guint32 label1, label2, label3;
7025 int index_var, src, dest, esize;
7026 MonoMarshalConv conv = -1;
7027 gboolean is_string = FALSE;
7029 g_assert (!t->byref);
7031 eklass = klass->element_class;
7033 mono_marshal_load_type_info (eklass);
7035 if (eklass == mono_defaults.string_class) {
7037 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7040 g_assert_not_reached ();
7044 esize = sizeof (gpointer);
7046 esize = mono_class_native_size (eklass, NULL);
7048 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7049 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7051 mono_mb_emit_stloc (mb, src);
7052 mono_mb_emit_ldloc (mb, src);
7053 mono_mb_emit_stloc (mb, 3);
7055 /* Check for null */
7056 mono_mb_emit_ldloc (mb, src);
7057 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7059 /* Allocate native array */
7060 mono_mb_emit_icon (mb, esize);
7061 mono_mb_emit_ldloc (mb, src);
7062 mono_mb_emit_byte (mb, CEE_LDLEN);
7064 if (eklass == mono_defaults.string_class) {
7065 /* Make the array bigger for the terminating null */
7066 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7067 mono_mb_emit_byte (mb, CEE_ADD);
7069 mono_mb_emit_byte (mb, CEE_MUL);
7070 mono_mb_emit_icall (mb, mono_marshal_alloc);
7071 mono_mb_emit_stloc (mb, dest);
7072 mono_mb_emit_ldloc (mb, dest);
7073 mono_mb_emit_stloc (mb, 3);
7075 /* Emit marshalling loop */
7076 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7077 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7078 mono_mb_emit_stloc (mb, index_var);
7079 label2 = mono_mb_get_label (mb);
7080 mono_mb_emit_ldloc (mb, index_var);
7081 mono_mb_emit_ldloc (mb, src);
7082 mono_mb_emit_byte (mb, CEE_LDLEN);
7083 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7085 /* Emit marshalling code */
7087 g_assert (conv != -1);
7090 mono_mb_emit_ldloc (mb, dest);
7093 mono_mb_emit_ldloc (mb, src);
7094 mono_mb_emit_ldloc (mb, index_var);
7096 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7098 mono_mb_emit_icall (mb, conv_to_icall (conv));
7099 mono_mb_emit_byte (mb, CEE_STIND_I);
7102 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7103 mono_mb_emit_exception_marshal_directive (mb, msg);
7107 mono_mb_emit_add_to_local (mb, index_var, 1);
7108 mono_mb_emit_add_to_local (mb, dest, esize);
7110 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7112 mono_mb_patch_branch (mb, label3);
7113 mono_mb_patch_branch (mb, label1);
7117 g_assert_not_reached ();
7124 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7125 MonoMarshalSpec *spec,
7126 int conv_arg, MonoType **conv_arg_type,
7127 MarshalAction action)
7129 MonoMethodBuilder *mb = m->mb;
7132 case MARSHAL_ACTION_CONV_IN: {
7133 MonoType *local_type;
7135 guint8 ldc_op = CEE_LDC_I4_1;
7138 local_type = &mono_defaults.int32_class->byval_arg;
7140 switch (spec->native) {
7141 case MONO_NATIVE_I1:
7142 case MONO_NATIVE_U1:
7143 local_type = &mono_defaults.byte_class->byval_arg;
7145 case MONO_NATIVE_VARIANTBOOL:
7146 local_type = &mono_defaults.int16_class->byval_arg;
7147 ldc_op = CEE_LDC_I4_M1;
7149 case MONO_NATIVE_BOOLEAN:
7150 local_type = &mono_defaults.int32_class->byval_arg;
7153 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7154 local_type = &mono_defaults.int32_class->byval_arg;
7159 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7161 *conv_arg_type = local_type;
7162 conv_arg = mono_mb_add_local (mb, local_type);
7164 mono_mb_emit_ldarg (mb, argnum);
7166 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7167 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7168 mono_mb_emit_byte (mb, ldc_op);
7169 mono_mb_emit_stloc (mb, conv_arg);
7170 mono_mb_patch_branch (mb, label_false);
7175 case MARSHAL_ACTION_CONV_OUT:
7177 int label_false, label_end;
7181 mono_mb_emit_ldarg (mb, argnum);
7182 mono_mb_emit_ldloc (mb, conv_arg);
7184 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7185 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7187 label_end = mono_mb_emit_branch (mb, CEE_BR);
7188 mono_mb_patch_branch (mb, label_false);
7189 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7190 mono_mb_patch_branch (mb, label_end);
7192 mono_mb_emit_byte (mb, CEE_STIND_I1);
7196 case MARSHAL_ACTION_PUSH:
7198 mono_mb_emit_ldloc_addr (mb, conv_arg);
7200 mono_mb_emit_ldloc (mb, conv_arg);
7202 mono_mb_emit_ldarg (mb, argnum);
7205 case MARSHAL_ACTION_CONV_RESULT:
7206 /* maybe we need to make sure that it fits within 8 bits */
7207 mono_mb_emit_stloc (mb, 3);
7210 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7211 MonoClass* conv_arg_class = mono_defaults.int32_class;
7212 guint8 ldop = CEE_LDIND_I4;
7213 int label_null, label_false;
7215 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7218 switch (spec->native) {
7219 case MONO_NATIVE_I1:
7220 case MONO_NATIVE_U1:
7221 conv_arg_class = mono_defaults.byte_class;
7222 ldop = CEE_LDIND_I1;
7224 case MONO_NATIVE_VARIANTBOOL:
7225 conv_arg_class = mono_defaults.int16_class;
7226 ldop = CEE_LDIND_I2;
7228 case MONO_NATIVE_BOOLEAN:
7231 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7236 *conv_arg_type = &conv_arg_class->this_arg;
7238 *conv_arg_type = &conv_arg_class->byval_arg;
7241 mono_mb_emit_ldarg (mb, argnum);
7246 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7247 mono_mb_emit_ldarg (mb, argnum);
7248 mono_mb_emit_byte (mb, ldop);
7251 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7252 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7253 mono_mb_emit_stloc (mb, conv_arg);
7254 mono_mb_patch_branch (mb, label_false);
7257 mono_mb_patch_branch (mb, label_null);
7261 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7262 guint8 stop = CEE_STIND_I4;
7263 guint8 ldc_op = CEE_LDC_I4_1;
7264 int label_null,label_false, label_end;;
7269 switch (spec->native) {
7270 case MONO_NATIVE_I1:
7271 case MONO_NATIVE_U1:
7272 stop = CEE_STIND_I1;
7274 case MONO_NATIVE_VARIANTBOOL:
7275 stop = CEE_STIND_I2;
7276 ldc_op = CEE_LDC_I4_M1;
7284 mono_mb_emit_ldarg (mb, argnum);
7285 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7287 mono_mb_emit_ldarg (mb, argnum);
7288 mono_mb_emit_ldloc (mb, conv_arg);
7290 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7291 mono_mb_emit_byte (mb, ldc_op);
7292 label_end = mono_mb_emit_branch (mb, CEE_BR);
7294 mono_mb_patch_branch (mb, label_false);
7295 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7296 mono_mb_patch_branch (mb, label_end);
7298 mono_mb_emit_byte (mb, stop);
7299 mono_mb_patch_branch (mb, label_null);
7304 g_assert_not_reached ();
7311 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7312 MonoMarshalSpec *spec, int conv_arg,
7313 MonoType **conv_arg_type, MarshalAction action)
7315 MonoMethodBuilder *mb = m->mb;
7318 case MARSHAL_ACTION_CONV_IN:
7319 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7320 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7321 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7325 case MARSHAL_ACTION_PUSH:
7326 mono_mb_emit_ldarg (mb, argnum);
7329 case MARSHAL_ACTION_CONV_RESULT:
7330 /* no conversions necessary */
7331 mono_mb_emit_stloc (mb, 3);
7342 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7343 MonoMarshalSpec *spec, int conv_arg,
7344 MonoType **conv_arg_type, MarshalAction action)
7346 MonoMethodBuilder *mb = m->mb;
7349 case MARSHAL_ACTION_PUSH:
7350 /* fixme: dont know how to marshal that. We cant simply
7351 * convert it to a one byte UTF8 character, because an
7352 * unicode character may need more that one byte in UTF8 */
7353 mono_mb_emit_ldarg (mb, argnum);
7356 case MARSHAL_ACTION_CONV_RESULT:
7357 /* fixme: we need conversions here */
7358 mono_mb_emit_stloc (mb, 3);
7369 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7370 MonoMarshalSpec *spec, int conv_arg,
7371 MonoType **conv_arg_type, MarshalAction action)
7373 MonoMethodBuilder *mb = m->mb;
7376 case MARSHAL_ACTION_PUSH:
7377 mono_mb_emit_ldarg (mb, argnum);
7380 case MARSHAL_ACTION_CONV_RESULT:
7381 /* no conversions necessary */
7382 mono_mb_emit_stloc (mb, 3);
7393 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7394 MonoMarshalSpec *spec, int conv_arg,
7395 MonoType **conv_arg_type, MarshalAction action)
7397 /* Ensure that we have marshalling info for this param */
7398 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7400 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7401 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7403 if (spec && spec->native == MONO_NATIVE_ASANY)
7404 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7407 case MONO_TYPE_VALUETYPE:
7408 if (t->data.klass == mono_defaults.handleref_class)
7409 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7411 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7412 case MONO_TYPE_STRING:
7413 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7414 case MONO_TYPE_CLASS:
7415 case MONO_TYPE_OBJECT:
7416 if (spec && spec->native == MONO_NATIVE_STRUCT)
7417 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7420 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7421 spec->native == MONO_NATIVE_IDISPATCH ||
7422 spec->native == MONO_NATIVE_INTERFACE))
7423 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7426 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7427 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7428 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7430 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7431 case MONO_TYPE_ARRAY:
7432 case MONO_TYPE_SZARRAY:
7433 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7434 case MONO_TYPE_BOOLEAN:
7435 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7437 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7438 case MONO_TYPE_CHAR:
7439 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7452 case MONO_TYPE_FNPTR:
7453 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7454 case MONO_TYPE_GENERICINST:
7455 if (mono_type_generic_inst_is_valuetype (t))
7456 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7458 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7465 * mono_marshal_emit_native_wrapper:
7466 * @image: the image to use for looking up custom marshallers
7467 * @sig: The signature of the native function
7468 * @piinfo: Marshalling information
7469 * @mspecs: Marshalling information
7470 * @aot: whenever the created method will be compiled by the AOT compiler
7471 * @method: if non-NULL, the pinvoke method to call
7472 * @check_exceptions: Whenever to check for pending exceptions after the native call
7474 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7477 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7479 EmitMarshalContext m;
7480 MonoMethodSignature *csig;
7482 int i, argnum, *tmp_locals;
7484 static MonoMethodSignature *get_last_error_sig = NULL;
7489 /* we copy the signature, so that we can set pinvoke to 0 */
7490 csig = signature_dup (mb->method->klass->image, sig);
7495 /* we allocate local for use with emit_struct_conv() */
7496 /* allocate local 0 (pointer) src_ptr */
7497 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7498 /* allocate local 1 (pointer) dst_ptr */
7499 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7500 /* allocate local 2 (boolean) delete_old */
7501 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7503 /* delete_old = FALSE */
7504 mono_mb_emit_icon (mb, 0);
7505 mono_mb_emit_stloc (mb, 2);
7507 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7508 /* allocate local 3 to store the return value */
7509 mono_mb_add_local (mb, sig->ret);
7512 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7513 /* Return type custom marshaling */
7515 * Since we can't determine the return type of the unmanaged function,
7516 * we assume it returns a pointer, and pass that pointer to
7517 * MarshalNativeToManaged.
7519 csig->ret = &mono_defaults.int_class->byval_arg;
7522 /* we first do all conversions */
7523 tmp_locals = alloca (sizeof (int) * sig->param_count);
7524 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7526 for (i = 0; i < sig->param_count; i ++) {
7527 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7530 /* push all arguments */
7533 mono_mb_emit_byte (mb, CEE_LDARG_0);
7535 for (i = 0; i < sig->param_count; i++) {
7536 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7539 /* call the native method */
7540 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7542 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7544 g_assert_not_reached ();
7549 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7550 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7551 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7552 mono_mb_emit_calli (mb, csig);
7554 mono_mb_emit_native_call (mb, csig, func);
7558 /* Set LastError if needed */
7559 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7560 if (!get_last_error_sig) {
7561 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7562 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7563 get_last_error_sig->pinvoke = 1;
7566 #ifdef PLATFORM_WIN32
7568 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7569 * clobber its value.
7571 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7572 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7574 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7578 /* convert the result */
7579 if (!sig->ret->byref) {
7580 MonoMarshalSpec *spec = mspecs [0];
7581 type = sig->ret->type;
7583 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7584 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7589 case MONO_TYPE_VOID:
7591 case MONO_TYPE_VALUETYPE:
7592 klass = sig->ret->data.klass;
7593 if (klass->enumtype) {
7594 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7597 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7611 case MONO_TYPE_FNPTR:
7612 case MONO_TYPE_STRING:
7613 case MONO_TYPE_CLASS:
7614 case MONO_TYPE_OBJECT:
7615 case MONO_TYPE_BOOLEAN:
7616 case MONO_TYPE_ARRAY:
7617 case MONO_TYPE_SZARRAY:
7618 case MONO_TYPE_CHAR:
7620 case MONO_TYPE_GENERICINST:
7621 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7623 case MONO_TYPE_TYPEDBYREF:
7625 g_warning ("return type 0x%02x unknown", sig->ret->type);
7626 g_assert_not_reached ();
7630 mono_mb_emit_stloc (mb, 3);
7634 * Need to call this after converting the result since MONO_VTADDR needs
7635 * to be adjacent to the call instruction.
7637 if (check_exceptions)
7638 emit_thread_interrupt_checkpoint (mb);
7640 /* we need to convert byref arguments back and free string arrays */
7641 for (i = 0; i < sig->param_count; i++) {
7642 MonoType *t = sig->params [i];
7643 MonoMarshalSpec *spec = mspecs [i + 1];
7645 argnum = i + sig->hasthis;
7647 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7648 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7653 case MONO_TYPE_STRING:
7654 case MONO_TYPE_VALUETYPE:
7655 case MONO_TYPE_CLASS:
7656 case MONO_TYPE_OBJECT:
7657 case MONO_TYPE_SZARRAY:
7658 case MONO_TYPE_BOOLEAN:
7659 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7664 if (!MONO_TYPE_IS_VOID(sig->ret))
7665 mono_mb_emit_ldloc (mb, 3);
7667 mono_mb_emit_byte (mb, CEE_RET);
7671 * mono_marshal_get_native_wrapper:
7672 * @method: The MonoMethod to wrap.
7673 * @check_exceptions: Whenever to check for pending exceptions
7675 * generates IL code for the pinvoke wrapper (the generated method
7676 * calls the unmanaged code in piinfo->addr)
7679 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7681 MonoMethodSignature *sig, *csig;
7682 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7683 MonoMethodBuilder *mb;
7684 MonoMarshalSpec **mspecs;
7687 gboolean pinvoke = FALSE;
7690 const char *exc_class = "MissingMethodException";
7691 const char *exc_arg = NULL;
7693 g_assert (method != NULL);
7694 g_assert (mono_method_signature (method)->pinvoke);
7697 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7699 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7700 if ((res = mono_marshal_find_in_cache (cache, method)))
7703 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7705 return mono_cominterop_get_native_wrapper (method);
7707 g_assert_not_reached ();
7711 sig = mono_method_signature (method);
7713 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7714 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7717 if (!piinfo->addr) {
7719 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7720 exc_arg = "Method contains unsupported native code";
7722 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7724 piinfo->addr = mono_lookup_internal_call (method);
7727 /* hack - redirect certain string constructors to CreateString */
7728 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7729 g_assert (!pinvoke);
7730 g_assert (method->string_ctor);
7731 g_assert (sig->hasthis);
7733 /* CreateString returns a value */
7734 csig = signature_dup (method->klass->image, sig);
7735 csig->ret = &mono_defaults.string_class->byval_arg;
7739 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7740 if (!strcmp ("CreateString", res->name) &&
7741 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7743 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7744 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7746 /* create a wrapper to preserve .ctor in stack trace */
7747 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7749 mono_mb_emit_byte (mb, CEE_LDARG_0);
7750 for (i = 1; i <= csig->param_count; i++)
7751 mono_mb_emit_ldarg (mb, i);
7752 mono_mb_emit_managed_call (mb, res, NULL);
7753 mono_mb_emit_byte (mb, CEE_RET);
7755 /* use native_wrapper_cache because internal calls are looked up there */
7756 res = mono_mb_create_and_cache (cache, method,
7757 mb, csig, csig->param_count + 1);
7765 /* exception will be thrown */
7766 piinfo->addr = NULL;
7767 g_warning ("cannot find CreateString for .ctor");
7770 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7772 mb->method->save_lmf = 1;
7775 * In AOT mode and embedding scenarios, it is possible that the icall is not
7776 * registered in the runtime doing the AOT compilation.
7778 if (!piinfo->addr && !aot) {
7779 mono_mb_emit_exception (mb, exc_class, exc_arg);
7780 csig = signature_dup (method->klass->image, sig);
7782 res = mono_mb_create_and_cache (cache, method,
7783 mb, csig, csig->param_count + 16);
7788 /* internal calls: we simply push all arguments and call the method (no conversions) */
7789 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7791 /* hack - string constructors returns a value */
7792 if (method->string_ctor) {
7793 csig = signature_dup (method->klass->image, sig);
7794 csig->ret = &mono_defaults.string_class->byval_arg;
7799 mono_mb_emit_byte (mb, CEE_LDARG_0);
7801 for (i = 0; i < sig->param_count; i++)
7802 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7805 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7806 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7807 mono_mb_emit_calli (mb, csig);
7809 g_assert (piinfo->addr);
7810 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7812 if (check_exceptions)
7813 emit_thread_interrupt_checkpoint (mb);
7814 mono_mb_emit_byte (mb, CEE_RET);
7816 csig = signature_dup (method->klass->image, csig);
7818 res = mono_mb_create_and_cache (cache, method,
7819 mb, csig, csig->param_count + 16);
7826 g_assert (piinfo->addr);
7828 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7829 mono_method_get_marshal_info (method, mspecs);
7831 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
7833 csig = signature_dup (method->klass->image, sig);
7835 res = mono_mb_create_and_cache (cache, method,
7836 mb, csig, csig->param_count + 16);
7839 for (i = sig->param_count; i >= 0; i--)
7841 mono_metadata_free_marshal_spec (mspecs [i]);
7844 /* 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)); */
7850 * mono_marshal_get_native_func_wrapper:
7851 * @image: The image to use for memory allocation and for looking up custom marshallers.
7852 * @sig: The signature of the function
7853 * @func: The native function to wrap
7855 * Returns a wrapper method around native functions, similar to the pinvoke
7859 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7860 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7862 MonoMethodSignature *csig;
7864 MonoMethodBuilder *mb;
7869 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7870 if ((res = mono_marshal_find_in_cache (cache, func)))
7873 name = g_strdup_printf ("wrapper_native_%p", func);
7874 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7875 mb->method->save_lmf = 1;
7877 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
7879 csig = signature_dup (image, sig);
7881 res = mono_mb_create_and_cache (cache, func,
7882 mb, csig, csig->param_count + 16);
7885 /* 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)); */
7891 * mono_marshal_emit_managed_wrapper:
7893 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7894 * the delegate which wraps the managed method to be called. For closed delegates,
7895 * it could have fewer parameters than the method it wraps.
7896 * THIS_LOC is the memory location where the target of the delegate is stored.
7899 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
7901 MonoMethodSignature *sig, *csig;
7903 gboolean closed = FALSE;
7908 /* allocate local 0 (pointer) src_ptr */
7909 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7910 /* allocate local 1 (pointer) dst_ptr */
7911 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7912 /* allocate local 2 (boolean) delete_old */
7913 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7915 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7916 /* Closed delegate */
7917 g_assert (sig->param_count == invoke_sig->param_count + 1);
7919 /* Use a new signature without the first argument */
7920 sig = mono_metadata_signature_dup (sig);
7921 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7922 sig->param_count --;
7925 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7926 /* allocate local 3 to store the return value */
7927 mono_mb_add_local (mb, sig->ret);
7930 mono_mb_emit_icon (mb, 0);
7931 mono_mb_emit_stloc (mb, 2);
7933 /* we first do all conversions */
7934 tmp_locals = alloca (sizeof (int) * sig->param_count);
7935 for (i = 0; i < sig->param_count; i ++) {
7936 MonoType *t = sig->params [i];
7939 case MONO_TYPE_OBJECT:
7940 case MONO_TYPE_CLASS:
7941 case MONO_TYPE_VALUETYPE:
7942 case MONO_TYPE_ARRAY:
7943 case MONO_TYPE_SZARRAY:
7944 case MONO_TYPE_STRING:
7945 case MONO_TYPE_BOOLEAN:
7946 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7955 emit_thread_interrupt_checkpoint (mb);
7959 mono_mb_emit_ptr (mb, this_loc);
7960 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7963 g_assert_not_reached ();
7965 } else if (closed) {
7966 mono_mb_emit_ptr (mb, this_loc);
7967 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7970 for (i = 0; i < sig->param_count; i++) {
7971 MonoType *t = sig->params [i];
7973 if (tmp_locals [i]) {
7975 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7977 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7980 mono_mb_emit_ldarg (mb, i);
7983 mono_mb_emit_managed_call (mb, method, NULL);
7985 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7986 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7987 } else if (!sig->ret->byref) {
7988 switch (sig->ret->type) {
7989 case MONO_TYPE_VOID:
7991 case MONO_TYPE_BOOLEAN:
7994 case MONO_TYPE_CHAR:
8006 case MONO_TYPE_OBJECT:
8007 mono_mb_emit_stloc (mb, 3);
8009 case MONO_TYPE_STRING:
8010 csig->ret = &mono_defaults.int_class->byval_arg;
8011 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8013 case MONO_TYPE_VALUETYPE:
8014 case MONO_TYPE_CLASS:
8015 case MONO_TYPE_SZARRAY:
8016 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8019 g_warning ("return type 0x%02x unknown", sig->ret->type);
8020 g_assert_not_reached ();
8023 mono_mb_emit_stloc (mb, 3);
8026 /* Convert byref arguments back */
8027 for (i = 0; i < sig->param_count; i ++) {
8028 MonoType *t = sig->params [i];
8029 MonoMarshalSpec *spec = mspecs [i + 1];
8031 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8032 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8034 else if (t->byref) {
8036 case MONO_TYPE_CLASS:
8037 case MONO_TYPE_VALUETYPE:
8038 case MONO_TYPE_OBJECT:
8039 case MONO_TYPE_STRING:
8040 case MONO_TYPE_BOOLEAN:
8041 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8045 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8046 /* The [Out] information is encoded in the delegate signature */
8048 case MONO_TYPE_SZARRAY:
8049 case MONO_TYPE_CLASS:
8050 case MONO_TYPE_VALUETYPE:
8051 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8054 g_assert_not_reached ();
8059 if (m->retobj_var) {
8060 mono_mb_emit_ldloc (mb, m->retobj_var);
8061 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8062 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8065 if (!MONO_TYPE_IS_VOID(sig->ret))
8066 mono_mb_emit_ldloc (mb, 3);
8067 mono_mb_emit_byte (mb, CEE_RET);
8076 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8078 MonoMethodSignature *sig;
8081 #ifdef PLATFORM_WIN32
8083 * Under windows, delegates passed to native code must use the STDCALL
8084 * calling convention.
8086 csig->call_convention = MONO_CALL_STDCALL;
8089 sig = mono_method_signature (method);
8091 /* Change default calling convention if needed */
8092 /* Why is this a modopt ? */
8093 if (sig->ret && sig->ret->num_mods) {
8094 for (i = 0; i < sig->ret->num_mods; ++i) {
8095 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8096 g_assert (cmod_class);
8097 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8098 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8099 csig->call_convention = MONO_CALL_C;
8100 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8101 csig->call_convention = MONO_CALL_STDCALL;
8102 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8103 csig->call_convention = MONO_CALL_FASTCALL;
8104 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8105 csig->call_convention = MONO_CALL_THISCALL;
8112 * generates IL code to call managed methods from unmanaged code
8115 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8117 static MonoClass *UnmanagedFunctionPointerAttribute;
8118 MonoMethodSignature *sig, *csig, *invoke_sig;
8119 MonoMethodBuilder *mb;
8120 MonoMethod *res, *invoke;
8121 MonoMarshalSpec **mspecs;
8122 MonoMethodPInvoke piinfo;
8125 EmitMarshalContext m;
8127 g_assert (method != NULL);
8128 g_assert (!mono_method_signature (method)->pinvoke);
8131 * FIXME: Should cache the method+delegate type pair, since the same method
8132 * could be called with different delegates, thus different marshalling
8135 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8136 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8139 invoke = mono_get_delegate_invoke (delegate_klass);
8140 invoke_sig = mono_method_signature (invoke);
8142 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8143 mono_method_get_marshal_info (invoke, mspecs);
8145 sig = mono_method_signature (method);
8147 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8149 /* we copy the signature, so that we can modify it */
8151 /* Need to free this later */
8152 csig = mono_metadata_signature_dup (invoke_sig);
8154 csig = signature_dup (method->klass->image, invoke_sig);
8163 m.image = method->klass->image;
8165 mono_marshal_set_callconv_from_modopt (invoke, csig);
8167 /* Handle the UnmanagedFunctionPointerAttribute */
8168 if (!UnmanagedFunctionPointerAttribute)
8169 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8171 /* The attribute is only available in Net 2.0 */
8172 if (UnmanagedFunctionPointerAttribute) {
8173 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8174 MonoCustomAttrInfo *cinfo;
8177 * The pinvoke attributes are stored in a real custom attribute so we have to
8180 cinfo = mono_custom_attrs_from_class (delegate_klass);
8182 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8184 memset (&piinfo, 0, sizeof (piinfo));
8186 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8188 csig->call_convention = attr->call_conv - 1;
8191 mono_custom_attrs_free (cinfo);
8195 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8198 res = mono_mb_create_and_cache (cache, method,
8199 mb, csig, sig->param_count + 16);
8202 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8206 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8208 mono_metadata_free_marshal_spec (mspecs [i]);
8211 /* 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)); */
8217 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8220 MonoMethodSignature *sig;
8221 MonoMethodBuilder *mb;
8226 method = mono_get_method (image, token, NULL);
8229 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8230 MonoMethodSignature *csig;
8231 MonoMarshalSpec **mspecs;
8232 EmitMarshalContext m;
8234 sig = mono_method_signature (method);
8235 g_assert (!sig->hasthis);
8237 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8238 mono_method_get_marshal_info (method, mspecs);
8240 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8241 csig = signature_dup (image, sig);
8252 mono_marshal_set_callconv_from_modopt (method, csig);
8254 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8256 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8259 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8262 for (i = sig->param_count; i >= 0; i--)
8264 mono_metadata_free_marshal_spec (mspecs [i]);
8267 return mono_compile_method (method);
8270 sig = mono_method_signature (method);
8271 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8273 param_count = sig->param_count + sig->hasthis;
8274 for (i = 0; i < param_count; i++)
8275 mono_mb_emit_ldarg (mb, i);
8277 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8278 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8280 mono_mb_emit_op (mb, CEE_CALL, method);
8281 mono_mb_emit_byte (mb, CEE_RET);
8284 method = mono_mb_create_method (mb, sig, param_count);
8287 return mono_compile_method (method);
8290 static MonoReflectionType *
8291 type_from_handle (MonoType *handle)
8293 MonoDomain *domain = mono_domain_get ();
8294 MonoClass *klass = mono_class_from_mono_type (handle);
8296 MONO_ARCH_SAVE_REGS;
8298 mono_class_init (klass);
8299 return mono_type_get_object (domain, handle);
8303 * mono_marshal_get_isinst:
8304 * @klass: the type of the field
8306 * This method generates a function which can be used to check if an object is
8307 * an instance of the given type, icluding the case where the object is a proxy.
8308 * The generated function has the following signature:
8309 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8312 mono_marshal_get_isinst (MonoClass *klass)
8314 static MonoMethodSignature *isint_sig = NULL;
8317 int pos_was_ok, pos_failed, pos_end, pos_end2;
8319 MonoMethodBuilder *mb;
8321 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8322 if ((res = mono_marshal_find_in_cache (cache, klass)))
8326 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8327 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8328 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8329 isint_sig->pinvoke = 0;
8332 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8333 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8336 mb->method->save_lmf = 1;
8338 /* check if the object is a proxy that needs special cast */
8339 mono_mb_emit_ldarg (mb, 0);
8340 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8341 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8343 /* The result of MONO_ISINST can be:
8344 0) the type check succeeded
8345 1) the type check did not succeed
8346 2) a CanCastTo call is needed */
8348 mono_mb_emit_byte (mb, CEE_DUP);
8349 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8351 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8352 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8354 /* get the real proxy from the transparent proxy*/
8356 mono_mb_emit_ldarg (mb, 0);
8357 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8358 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8362 mono_mb_patch_branch (mb, pos_failed);
8363 mono_mb_emit_byte (mb, CEE_LDNULL);
8364 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8368 mono_mb_patch_branch (mb, pos_was_ok);
8369 mono_mb_emit_byte (mb, CEE_POP);
8370 mono_mb_emit_ldarg (mb, 0);
8374 mono_mb_patch_branch (mb, pos_end);
8375 mono_mb_patch_branch (mb, pos_end2);
8376 mono_mb_emit_byte (mb, CEE_RET);
8378 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8385 * mono_marshal_get_castclass:
8386 * @klass: the type of the field
8388 * This method generates a function which can be used to cast an object to
8389 * an instance of the given type, icluding the case where the object is a proxy.
8390 * The generated function has the following signature:
8391 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8394 mono_marshal_get_castclass (MonoClass *klass)
8396 static MonoMethodSignature *castclass_sig = NULL;
8399 int pos_was_ok, pos_was_ok2;
8401 MonoMethodBuilder *mb;
8403 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8404 if ((res = mono_marshal_find_in_cache (cache, klass)))
8407 if (!castclass_sig) {
8408 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8409 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8410 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8411 castclass_sig->pinvoke = 0;
8414 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8415 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8418 mb->method->save_lmf = 1;
8420 /* check if the object is a proxy that needs special cast */
8421 mono_mb_emit_ldarg (mb, 0);
8422 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8423 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8425 /* The result of MONO_ISINST can be:
8426 0) the cast is valid
8427 1) cast of unknown proxy type
8428 or an exception if the cast is is invalid
8431 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8433 /* get the real proxy from the transparent proxy*/
8435 mono_mb_emit_ldarg (mb, 0);
8436 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8437 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8440 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8443 mono_mb_patch_branch (mb, pos_was_ok);
8444 mono_mb_patch_branch (mb, pos_was_ok2);
8445 mono_mb_emit_ldarg (mb, 0);
8448 mono_mb_emit_byte (mb, CEE_RET);
8450 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8457 mono_marshal_get_proxy_cancast (MonoClass *klass)
8459 static MonoMethodSignature *isint_sig = NULL;
8462 int pos_failed, pos_end;
8464 MonoMethod *can_cast_to;
8465 MonoMethodDesc *desc;
8466 MonoMethodBuilder *mb;
8468 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8469 if ((res = mono_marshal_find_in_cache (cache, klass)))
8473 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8474 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8475 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8476 isint_sig->pinvoke = 0;
8479 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8480 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8483 mb->method->save_lmf = 1;
8485 /* get the real proxy from the transparent proxy*/
8486 mono_mb_emit_ldarg (mb, 0);
8487 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8488 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8490 /* get the reflection type from the type handle */
8491 mono_mb_emit_ptr (mb, &klass->byval_arg);
8492 mono_mb_emit_icall (mb, type_from_handle);
8494 mono_mb_emit_ldarg (mb, 0);
8496 /* make the call to CanCastTo (type, ob) */
8497 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8498 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8499 g_assert (can_cast_to);
8500 mono_method_desc_free (desc);
8501 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8503 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8505 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8506 mono_mb_emit_ptr (mb, &klass->byval_arg);
8507 mono_mb_emit_icall (mb, type_from_handle);
8508 mono_mb_emit_ldarg (mb, 0);
8510 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8511 emit_thread_interrupt_checkpoint (mb);
8513 mono_mb_emit_ldarg (mb, 0);
8514 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8518 mono_mb_patch_branch (mb, pos_failed);
8519 mono_mb_emit_byte (mb, CEE_LDNULL);
8523 mono_mb_patch_branch (mb, pos_end);
8524 mono_mb_emit_byte (mb, CEE_RET);
8526 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8533 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8536 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8537 klass = mono_class_from_mono_type (rtype->type);
8538 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8542 * mono_marshal_get_struct_to_ptr:
8545 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8548 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8550 MonoMethodBuilder *mb;
8551 static MonoMethod *stoptr = NULL;
8554 g_assert (klass != NULL);
8556 mono_marshal_load_type_info (klass);
8558 if (klass->marshal_info->str_to_ptr)
8559 return klass->marshal_info->str_to_ptr;
8562 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8565 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8567 if (klass->blittable) {
8568 mono_mb_emit_byte (mb, CEE_LDARG_1);
8569 mono_mb_emit_byte (mb, CEE_LDARG_0);
8570 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8571 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8572 mono_mb_emit_byte (mb, CEE_PREFIX1);
8573 mono_mb_emit_byte (mb, CEE_CPBLK);
8576 /* allocate local 0 (pointer) src_ptr */
8577 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8578 /* allocate local 1 (pointer) dst_ptr */
8579 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8580 /* allocate local 2 (boolean) delete_old */
8581 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8582 mono_mb_emit_byte (mb, CEE_LDARG_2);
8583 mono_mb_emit_stloc (mb, 2);
8585 /* initialize src_ptr to point to the start of object data */
8586 mono_mb_emit_byte (mb, CEE_LDARG_0);
8587 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8588 mono_mb_emit_stloc (mb, 0);
8590 /* initialize dst_ptr */
8591 mono_mb_emit_byte (mb, CEE_LDARG_1);
8592 mono_mb_emit_stloc (mb, 1);
8594 emit_struct_conv (mb, klass, FALSE);
8597 mono_mb_emit_byte (mb, CEE_RET);
8599 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
8602 klass->marshal_info->str_to_ptr = res;
8607 * mono_marshal_get_ptr_to_struct:
8610 * generates IL code for PtrToStructure (IntPtr src, object structure)
8613 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8615 MonoMethodBuilder *mb;
8616 static MonoMethodSignature *ptostr = NULL;
8619 g_assert (klass != NULL);
8621 mono_marshal_load_type_info (klass);
8623 if (klass->marshal_info->ptr_to_str)
8624 return klass->marshal_info->ptr_to_str;
8627 MonoMethodSignature *sig;
8629 /* Create the signature corresponding to
8630 static void PtrToStructure (IntPtr ptr, object structure);
8631 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8632 sig = mono_create_icall_signature ("void ptr object");
8633 sig = signature_dup (mono_defaults.corlib, sig);
8635 mono_memory_barrier ();
8639 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8641 if (klass->blittable) {
8642 mono_mb_emit_byte (mb, CEE_LDARG_1);
8643 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8644 mono_mb_emit_byte (mb, CEE_LDARG_0);
8645 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8646 mono_mb_emit_byte (mb, CEE_PREFIX1);
8647 mono_mb_emit_byte (mb, CEE_CPBLK);
8650 /* allocate local 0 (pointer) src_ptr */
8651 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8652 /* allocate local 1 (pointer) dst_ptr */
8653 mono_mb_add_local (mb, &klass->this_arg);
8655 /* initialize src_ptr to point to the start of object data */
8656 mono_mb_emit_byte (mb, CEE_LDARG_0);
8657 mono_mb_emit_stloc (mb, 0);
8659 /* initialize dst_ptr */
8660 mono_mb_emit_byte (mb, CEE_LDARG_1);
8661 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8662 mono_mb_emit_stloc (mb, 1);
8664 emit_struct_conv (mb, klass, TRUE);
8667 mono_mb_emit_byte (mb, CEE_RET);
8669 res = mono_mb_create_method (mb, ptostr, 0);
8672 klass->marshal_info->ptr_to_str = res;
8677 * generates IL code for the synchronized wrapper: the generated method
8678 * calls METHOD while locking 'this' or the parent type.
8681 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8683 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8684 MonoMethodSignature *sig;
8685 MonoExceptionClause *clause;
8686 MonoMethodBuilder *mb;
8689 int i, pos, this_local, ret_local = 0;
8693 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8696 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8697 if ((res = mono_marshal_find_in_cache (cache, method)))
8700 sig = signature_dup (method->klass->image, mono_method_signature (method));
8703 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8706 if (!MONO_TYPE_IS_VOID (sig->ret))
8707 ret_local = mono_mb_add_local (mb, sig->ret);
8709 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8710 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8711 /* This will throw the type load exception when the wrapper is compiled */
8712 mono_mb_emit_byte (mb, CEE_LDNULL);
8713 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8714 mono_mb_emit_byte (mb, CEE_POP);
8716 if (!MONO_TYPE_IS_VOID (sig->ret))
8717 mono_mb_emit_ldloc (mb, ret_local);
8718 mono_mb_emit_byte (mb, CEE_RET);
8720 res = mono_mb_create_and_cache (cache, method,
8721 mb, sig, sig->param_count + 16);
8728 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8730 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8731 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8733 mono_loader_lock ();
8735 if (!enter_method) {
8736 MonoMethodDesc *desc;
8738 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8739 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8740 g_assert (enter_method);
8741 mono_method_desc_free (desc);
8743 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8744 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8745 g_assert (exit_method);
8746 mono_method_desc_free (desc);
8748 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8749 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
8750 g_assert (gettypefromhandle_method);
8751 mono_method_desc_free (desc);
8754 mono_loader_unlock ();
8756 /* Push this or the type object */
8757 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8758 /* We have special handling for this in the JIT */
8759 int index = mono_mb_add_data (mb, method->klass);
8760 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8761 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8762 mono_mb_emit_i4 (mb, index);
8764 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8767 mono_mb_emit_ldarg (mb, 0);
8768 mono_mb_emit_stloc (mb, this_local);
8770 /* Call Monitor::Enter() */
8771 mono_mb_emit_ldloc (mb, this_local);
8772 mono_mb_emit_managed_call (mb, enter_method, NULL);
8774 clause->try_offset = mono_mb_get_label (mb);
8776 /* Call the method */
8778 mono_mb_emit_ldarg (mb, 0);
8779 for (i = 0; i < sig->param_count; i++)
8780 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8782 mono_mb_emit_managed_call (mb, method, NULL);
8784 if (!MONO_TYPE_IS_VOID (sig->ret))
8785 mono_mb_emit_stloc (mb, ret_local);
8787 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8789 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8790 clause->handler_offset = mono_mb_get_label (mb);
8792 /* Call Monitor::Exit() */
8793 mono_mb_emit_ldloc (mb, this_local);
8794 mono_mb_emit_managed_call (mb, exit_method, NULL);
8795 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8797 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8799 mono_mb_patch_branch (mb, pos);
8800 if (!MONO_TYPE_IS_VOID (sig->ret))
8801 mono_mb_emit_ldloc (mb, ret_local);
8802 mono_mb_emit_byte (mb, CEE_RET);
8804 mono_mb_set_clauses (mb, 1, clause);
8806 res = mono_mb_create_and_cache (cache, method,
8807 mb, sig, sig->param_count + 16);
8815 * the returned method calls 'method' unboxing the this argument
8818 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8820 MonoMethodSignature *sig = mono_method_signature (method);
8822 MonoMethodBuilder *mb;
8826 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8827 if ((res = mono_marshal_find_in_cache (cache, method)))
8830 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8832 g_assert (sig->hasthis);
8834 mono_mb_emit_ldarg (mb, 0);
8835 mono_mb_emit_icon (mb, sizeof (MonoObject));
8836 mono_mb_emit_byte (mb, CEE_ADD);
8837 for (i = 0; i < sig->param_count; ++i)
8838 mono_mb_emit_ldarg (mb, i + 1);
8839 mono_mb_emit_managed_call (mb, method, NULL);
8840 mono_mb_emit_byte (mb, CEE_RET);
8842 res = mono_mb_create_and_cache (cache, method,
8843 mb, sig, sig->param_count + 16);
8846 /* 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)); */
8852 mono_marshal_get_stelemref ()
8854 static MonoMethod* ret = NULL;
8855 MonoMethodSignature *sig;
8856 MonoMethodBuilder *mb;
8858 guint32 b1, b2, b3, b4;
8861 int array_slot_addr;
8866 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8869 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8871 /* void stelemref (void* array, int idx, void* value) */
8872 sig->ret = &mono_defaults.void_class->byval_arg;
8873 sig->params [0] = &mono_defaults.object_class->byval_arg;
8874 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8875 sig->params [2] = &mono_defaults.object_class->byval_arg;
8877 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8878 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8879 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8883 <ldelema (bound check)>
8887 aklass = array->vtable->klass->element_class;
8888 vklass = value->vtable->klass;
8890 if (vklass->idepth < aklass->idepth)
8893 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8897 *array_slot_addr = value;
8901 if (mono_object_isinst (value, aklass))
8904 throw new ArrayTypeMismatchException ();
8907 /* ldelema (implicit bound check) */
8908 mono_mb_emit_ldarg (mb, 0);
8909 mono_mb_emit_ldarg (mb, 1);
8910 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8911 mono_mb_emit_stloc (mb, array_slot_addr);
8913 /* if (!value) goto do_store */
8914 mono_mb_emit_ldarg (mb, 2);
8915 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8917 /* aklass = array->vtable->klass->element_class */
8918 mono_mb_emit_ldarg (mb, 0);
8919 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8920 mono_mb_emit_byte (mb, CEE_LDIND_I);
8921 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8922 mono_mb_emit_byte (mb, CEE_LDIND_I);
8923 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8924 mono_mb_emit_byte (mb, CEE_LDIND_I);
8925 mono_mb_emit_stloc (mb, aklass);
8927 /* vklass = value->vtable->klass */
8928 mono_mb_emit_ldarg (mb, 2);
8929 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8930 mono_mb_emit_byte (mb, CEE_LDIND_I);
8931 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8932 mono_mb_emit_byte (mb, CEE_LDIND_I);
8933 mono_mb_emit_stloc (mb, vklass);
8935 /* if (vklass->idepth < aklass->idepth) goto failue */
8936 mono_mb_emit_ldloc (mb, vklass);
8937 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8938 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8940 mono_mb_emit_ldloc (mb, aklass);
8941 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8942 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8944 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8946 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8947 mono_mb_emit_ldloc (mb, vklass);
8948 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8949 mono_mb_emit_byte (mb, CEE_LDIND_I);
8951 mono_mb_emit_ldloc (mb, aklass);
8952 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8953 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8954 mono_mb_emit_icon (mb, 1);
8955 mono_mb_emit_byte (mb, CEE_SUB);
8956 mono_mb_emit_icon (mb, sizeof (void*));
8957 mono_mb_emit_byte (mb, CEE_MUL);
8958 mono_mb_emit_byte (mb, CEE_ADD);
8959 mono_mb_emit_byte (mb, CEE_LDIND_I);
8961 mono_mb_emit_ldloc (mb, aklass);
8963 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8965 copy_pos = mono_mb_get_label (mb);
8967 mono_mb_patch_branch (mb, b1);
8968 mono_mb_emit_ldloc (mb, array_slot_addr);
8969 mono_mb_emit_ldarg (mb, 2);
8970 mono_mb_emit_byte (mb, CEE_STIND_REF);
8972 mono_mb_emit_byte (mb, CEE_RET);
8975 mono_mb_patch_branch (mb, b2);
8976 mono_mb_patch_branch (mb, b3);
8978 mono_mb_emit_ldarg (mb, 2);
8979 mono_mb_emit_ldloc (mb, aklass);
8980 mono_mb_emit_icall (mb, mono_object_isinst);
8982 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8983 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8984 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8986 mono_mb_emit_byte (mb, CEE_RET);
8987 ret = mono_mb_create_method (mb, sig, 4);
8998 /* LOCKING: vars accessed under the marshal lock */
8999 static ArrayElemAddr *elem_addr_cache = NULL;
9000 static int elem_addr_cache_size = 0;
9001 static int elem_addr_cache_next = 0;
9004 * mono_marshal_get_array_address:
9005 * @rank: rank of the array type
9006 * @elem_size: size in bytes of an element of an array.
9008 * Returns a MonoMethd that implements the code to get the address
9009 * of an element in a multi-dimenasional array of @rank dimensions.
9010 * The returned method takes an array as the first argument and then
9011 * @rank indexes for the @rank dimensions.
9014 mono_marshal_get_array_address (int rank, int elem_size)
9017 MonoMethodBuilder *mb;
9018 MonoMethodSignature *sig;
9019 int i, bounds, ind, realidx;
9020 int branch_pos, *branch_positions;
9024 mono_marshal_lock ();
9025 for (i = 0; i < elem_addr_cache_next; ++i) {
9026 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9027 ret = elem_addr_cache [i].method;
9031 mono_marshal_unlock ();
9035 branch_positions = g_new0 (int, rank);
9037 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9039 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9040 sig->ret = &mono_defaults.int_class->byval_arg;
9041 sig->params [0] = &mono_defaults.object_class->byval_arg;
9042 for (i = 0; i < rank; ++i) {
9043 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9046 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9048 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9049 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9050 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9052 /* bounds = array->bounds; */
9053 mono_mb_emit_ldarg (mb, 0);
9054 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9055 mono_mb_emit_byte (mb, CEE_LDIND_I);
9056 mono_mb_emit_stloc (mb, bounds);
9058 /* ind is the overall element index, realidx is the partial index in a single dimension */
9059 /* ind = idx0 - bounds [0].lower_bound */
9060 mono_mb_emit_ldarg (mb, 1);
9061 mono_mb_emit_ldloc (mb, bounds);
9062 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9063 mono_mb_emit_byte (mb, CEE_ADD);
9064 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9065 mono_mb_emit_byte (mb, CEE_SUB);
9066 mono_mb_emit_stloc (mb, ind);
9067 /* if (ind >= bounds [0].length) goto exeception; */
9068 mono_mb_emit_ldloc (mb, ind);
9069 mono_mb_emit_ldloc (mb, bounds);
9070 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9071 mono_mb_emit_byte (mb, CEE_ADD);
9072 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9073 /* note that we use unsigned comparison */
9074 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9076 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9077 * We could also decide to ignore the passed elem_size and get it
9078 * from the array object, to reduce the number of methods we generate:
9079 * the additional cost is 3 memory loads and a non-immediate mul.
9081 for (i = 1; i < rank; ++i) {
9082 /* realidx = idxi - bounds [i].lower_bound */
9083 mono_mb_emit_ldarg (mb, 1 + i);
9084 mono_mb_emit_ldloc (mb, bounds);
9085 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9086 mono_mb_emit_byte (mb, CEE_ADD);
9087 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9088 mono_mb_emit_byte (mb, CEE_SUB);
9089 mono_mb_emit_stloc (mb, realidx);
9090 /* if (realidx >= bounds [i].length) goto exeception; */
9091 mono_mb_emit_ldloc (mb, realidx);
9092 mono_mb_emit_ldloc (mb, bounds);
9093 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9094 mono_mb_emit_byte (mb, CEE_ADD);
9095 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9096 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9097 /* ind = ind * bounds [i].length + realidx */
9098 mono_mb_emit_ldloc (mb, ind);
9099 mono_mb_emit_ldloc (mb, bounds);
9100 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9101 mono_mb_emit_byte (mb, CEE_ADD);
9102 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9103 mono_mb_emit_byte (mb, CEE_MUL);
9104 mono_mb_emit_ldloc (mb, realidx);
9105 mono_mb_emit_byte (mb, CEE_ADD);
9106 mono_mb_emit_stloc (mb, ind);
9109 /* return array->vector + ind * element_size */
9110 mono_mb_emit_ldarg (mb, 0);
9111 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9112 mono_mb_emit_ldloc (mb, ind);
9113 mono_mb_emit_icon (mb, elem_size);
9114 mono_mb_emit_byte (mb, CEE_MUL);
9115 mono_mb_emit_byte (mb, CEE_ADD);
9116 mono_mb_emit_byte (mb, CEE_RET);
9118 /* patch the branches to get here and throw */
9119 for (i = 1; i < rank; ++i) {
9120 mono_mb_patch_branch (mb, branch_positions [i]);
9122 mono_mb_patch_branch (mb, branch_pos);
9123 /* throw exception */
9124 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9126 g_free (branch_positions);
9127 ret = mono_mb_create_method (mb, sig, 4);
9130 /* cache the result */
9132 mono_marshal_lock ();
9133 for (i = 0; i < elem_addr_cache_next; ++i) {
9134 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9135 /* FIXME: free ret */
9136 ret = elem_addr_cache [i].method;
9142 if (elem_addr_cache_next >= elem_addr_cache_size) {
9143 int new_size = elem_addr_cache_size + 4;
9144 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9145 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9146 g_free (elem_addr_cache);
9147 elem_addr_cache = new_array;
9148 elem_addr_cache_size = new_size;
9150 elem_addr_cache [elem_addr_cache_next].rank = rank;
9151 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9152 elem_addr_cache [elem_addr_cache_next].method = ret;
9154 mono_marshal_unlock ();
9159 mono_marshal_alloc (gulong size)
9163 #ifdef PLATFORM_WIN32
9164 res = CoTaskMemAlloc (size);
9166 res = g_try_malloc ((gulong)size);
9168 mono_gc_out_of_memory ((gulong)size);
9174 mono_marshal_free (gpointer ptr)
9176 #ifdef PLATFORM_WIN32
9177 CoTaskMemFree (ptr);
9184 mono_marshal_free_array (gpointer *ptr, int size)
9191 for (i = 0; i < size; i++)
9197 mono_marshal_string_to_utf16 (MonoString *s)
9199 return s ? mono_string_chars (s) : NULL;
9203 mono_marshal_string_to_utf16_copy (MonoString *s)
9208 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9209 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9210 res [mono_string_length (s)] = 0;
9216 * mono_marshal_set_last_error:
9218 * This function is invoked to set the last error value from a P/Invoke call
9219 * which has SetLastError set.
9222 mono_marshal_set_last_error (void)
9225 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9227 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9232 mono_marshal_set_last_error_windows (int error)
9235 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9240 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9241 gpointer dest, gint32 length)
9246 MONO_ARCH_SAVE_REGS;
9248 MONO_CHECK_ARG_NULL (src);
9249 MONO_CHECK_ARG_NULL (dest);
9251 if (src->obj.vtable->klass->rank != 1)
9252 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9253 if (start_index < 0)
9254 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9256 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9257 if (start_index + length > mono_array_length (src))
9258 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9260 element_size = mono_array_element_size (src->obj.vtable->klass);
9262 /* no references should be involved */
9263 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9265 memcpy (dest, source_addr, length * element_size);
9269 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9270 MonoArray *dest, gint32 length)
9275 MONO_ARCH_SAVE_REGS;
9277 MONO_CHECK_ARG_NULL (src);
9278 MONO_CHECK_ARG_NULL (dest);
9280 if (dest->obj.vtable->klass->rank != 1)
9281 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9282 if (start_index < 0)
9283 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9285 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9286 if (start_index + length > mono_array_length (dest))
9287 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9289 element_size = mono_array_element_size (dest->obj.vtable->klass);
9291 /* no references should be involved */
9292 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9294 memcpy (dest_addr, src, length * element_size);
9297 #if NO_UNALIGNED_ACCESS
9298 #define RETURN_UNALIGNED(type, addr) \
9301 memcpy(&val, p + offset, sizeof(val)); \
9304 #define WRITE_UNALIGNED(type, addr, val) \
9305 memcpy(addr, &val, sizeof(type))
9307 #define RETURN_UNALIGNED(type, addr) \
9308 return *(type*)(p + offset);
9309 #define WRITE_UNALIGNED(type, addr, val) \
9310 (*(type *)(addr) = (val))
9314 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9318 MONO_ARCH_SAVE_REGS;
9320 RETURN_UNALIGNED(gpointer, p + offset);
9324 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9328 MONO_ARCH_SAVE_REGS;
9330 return *(unsigned char*)(p + offset);
9334 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9338 MONO_ARCH_SAVE_REGS;
9340 RETURN_UNALIGNED(gint16, p + offset);
9344 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9348 MONO_ARCH_SAVE_REGS;
9350 RETURN_UNALIGNED(gint32, p + offset);
9354 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9358 MONO_ARCH_SAVE_REGS;
9360 RETURN_UNALIGNED(gint64, p + offset);
9364 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9368 MONO_ARCH_SAVE_REGS;
9370 *(unsigned char*)(p + offset) = val;
9374 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9378 MONO_ARCH_SAVE_REGS;
9380 WRITE_UNALIGNED(gpointer, p + offset, val);
9384 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9388 MONO_ARCH_SAVE_REGS;
9390 WRITE_UNALIGNED(gint16, p + offset, val);
9394 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9398 MONO_ARCH_SAVE_REGS;
9400 WRITE_UNALIGNED(gint32, p + offset, val);
9404 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9408 MONO_ARCH_SAVE_REGS;
9410 WRITE_UNALIGNED(gint64, p + offset, val);
9414 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9416 MONO_ARCH_SAVE_REGS;
9421 return mono_string_new (mono_domain_get (), ptr);
9425 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9427 MONO_ARCH_SAVE_REGS;
9430 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9431 g_assert_not_reached ();
9434 return mono_string_new_len (mono_domain_get (), ptr, len);
9439 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9441 MonoDomain *domain = mono_domain_get ();
9445 MONO_ARCH_SAVE_REGS;
9453 return mono_string_new_utf16 (domain, ptr, len);
9457 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9459 MonoDomain *domain = mono_domain_get ();
9461 MONO_ARCH_SAVE_REGS;
9464 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9465 g_assert_not_reached ();
9468 return mono_string_new_utf16 (domain, ptr, len);
9473 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9475 MONO_ARCH_SAVE_REGS;
9477 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9481 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9487 MONO_ARCH_SAVE_REGS;
9489 MONO_CHECK_ARG_NULL (rtype);
9492 klass = mono_class_from_mono_type (type);
9493 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9495 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9499 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9500 exc = mono_get_exception_argument ("t", msg);
9502 mono_raise_exception (exc);
9506 return mono_class_native_size (klass, NULL);
9510 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9515 MONO_ARCH_SAVE_REGS;
9517 MONO_CHECK_ARG_NULL (obj);
9518 MONO_CHECK_ARG_NULL (dst);
9520 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9524 pa [2] = &delete_old;
9526 mono_runtime_invoke (method, NULL, pa, NULL);
9530 ptr_to_structure (gpointer src, MonoObject *dst)
9535 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9540 mono_runtime_invoke (method, NULL, pa, NULL);
9544 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9548 MONO_ARCH_SAVE_REGS;
9550 MONO_CHECK_ARG_NULL (src);
9551 MONO_CHECK_ARG_NULL (dst);
9553 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9555 if (t->type == MONO_TYPE_VALUETYPE) {
9559 tmp = g_strdup_printf ("Destination is a boxed value type.");
9560 exc = mono_get_exception_argument ("dst", tmp);
9563 mono_raise_exception (exc);
9567 ptr_to_structure (src, dst);
9571 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
9573 MonoDomain *domain = mono_domain_get ();
9576 MONO_ARCH_SAVE_REGS;
9578 MONO_CHECK_ARG_NULL (src);
9579 MONO_CHECK_ARG_NULL (type);
9581 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
9583 ptr_to_structure (src, res);
9589 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
9591 MonoMarshalType *info;
9594 int match_index = -1;
9596 MONO_ARCH_SAVE_REGS;
9598 MONO_CHECK_ARG_NULL (type);
9599 MONO_CHECK_ARG_NULL (field_name);
9601 fname = mono_string_to_utf8 (field_name);
9602 klass = mono_class_from_mono_type (type->type);
9604 while (klass && match_index == -1) {
9605 MonoClassField* field;
9607 gpointer iter = NULL;
9608 while ((field = mono_class_get_fields (klass, &iter))) {
9609 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9611 if (!strcmp (fname, mono_field_get_name (field))) {
9618 if (match_index == -1)
9619 klass = klass->parent;
9624 if(match_index == -1) {
9628 /* Get back original class instance */
9629 klass = mono_class_from_mono_type (type->type);
9631 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9632 exc = mono_get_exception_argument ("fieldName", tmp);
9635 mono_raise_exception ((MonoException*)exc);
9638 info = mono_marshal_load_type_info (klass);
9639 return info->fields [match_index].offset;
9643 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9645 #ifdef PLATFORM_WIN32
9648 tres = mono_string_to_utf8 (string);
9652 len = strlen (tres) + 1;
9653 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
9654 memcpy (ret, tres, len);
9659 return mono_string_to_utf8 (string);
9664 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9666 MONO_ARCH_SAVE_REGS;
9671 #ifdef PLATFORM_WIN32
9672 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
9673 ((mono_string_length (string) + 1) * 2);
9675 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9677 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9678 res [mono_string_length (string)] = 0;
9684 mono_struct_delete_old (MonoClass *klass, char *ptr)
9686 MonoMarshalType *info;
9689 info = mono_marshal_load_type_info (klass);
9691 for (i = 0; i < info->num_fields; i++) {
9692 MonoMarshalNative ntype;
9693 MonoMarshalConv conv;
9694 MonoType *ftype = info->fields [i].field->type;
9697 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9700 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9701 klass->unicode, &conv);
9703 cpos = ptr + info->fields [i].offset;
9706 case MONO_MARSHAL_CONV_NONE:
9707 if (MONO_TYPE_ISSTRUCT (ftype)) {
9708 mono_struct_delete_old (ftype->data.klass, cpos);
9712 case MONO_MARSHAL_CONV_STR_LPWSTR:
9713 /* We assume this field points inside a MonoString */
9715 case MONO_MARSHAL_CONV_STR_LPTSTR:
9716 #ifdef PLATFORM_WIN32
9717 /* We assume this field points inside a MonoString
9721 case MONO_MARSHAL_CONV_STR_LPSTR:
9722 case MONO_MARSHAL_CONV_STR_BSTR:
9723 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9724 case MONO_MARSHAL_CONV_STR_TBSTR:
9725 mono_marshal_free (*(gpointer *)cpos);
9735 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9739 MONO_ARCH_SAVE_REGS;
9741 MONO_CHECK_ARG_NULL (src);
9742 MONO_CHECK_ARG_NULL (type);
9744 klass = mono_class_from_mono_type (type->type);
9746 mono_struct_delete_old (klass, (char *)src);
9750 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9754 MONO_ARCH_SAVE_REGS;
9756 if ((gulong)size == 0)
9757 /* This returns a valid pointer for size 0 on MS.NET */
9760 #ifdef PLATFORM_WIN32
9761 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
9763 res = g_try_malloc ((gulong)size);
9766 mono_gc_out_of_memory ((gulong)size);
9772 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
9777 mono_gc_out_of_memory ((gulong)size);
9781 #ifdef PLATFORM_WIN32
9782 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
9784 res = g_try_realloc (ptr, (gulong)size);
9787 mono_gc_out_of_memory ((gulong)size);
9793 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9795 MONO_ARCH_SAVE_REGS;
9797 #ifdef PLATFORM_WIN32
9805 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9807 MONO_ARCH_SAVE_REGS;
9809 #ifdef PLATFORM_WIN32
9810 return CoTaskMemAlloc (size);
9812 return g_try_malloc ((gulong)size);
9817 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9819 MONO_ARCH_SAVE_REGS;
9821 #ifdef PLATFORM_WIN32
9822 CoTaskMemFree (ptr);
9829 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
9831 MONO_ARCH_SAVE_REGS;
9833 #ifdef PLATFORM_WIN32
9834 return CoTaskMemRealloc (ptr, size);
9836 return g_try_realloc (ptr, (gulong)size);
9841 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9843 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9847 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9849 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9853 * mono_marshal_is_loading_type_info:
9855 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9859 mono_marshal_is_loading_type_info (MonoClass *klass)
9861 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9863 return g_slist_find (loads_list, klass) != NULL;
9867 * mono_marshal_load_type_info:
9869 * Initialize klass->marshal_info using information from metadata. This function can
9870 * recursively call itself, and the caller is responsible to avoid that by calling
9871 * mono_marshal_is_loading_type_info () beforehand.
9873 * LOCKING: Acquires the loader lock.
9876 mono_marshal_load_type_info (MonoClass* klass)
9879 guint32 native_size = 0, min_align = 1;
9880 MonoMarshalType *info;
9881 MonoClassField* field;
9886 g_assert (klass != NULL);
9888 if (klass->marshal_info)
9889 return klass->marshal_info;
9892 mono_class_init (klass);
9894 mono_loader_lock ();
9896 if (klass->marshal_info) {
9897 mono_loader_unlock ();
9898 return klass->marshal_info;
9902 * This function can recursively call itself, so we keep the list of classes which are
9903 * under initialization in a TLS list.
9905 g_assert (!mono_marshal_is_loading_type_info (klass));
9906 loads_list = TlsGetValue (load_type_info_tls_id);
9907 loads_list = g_slist_prepend (loads_list, klass);
9908 TlsSetValue (load_type_info_tls_id, loads_list);
9911 while ((field = mono_class_get_fields (klass, &iter))) {
9912 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9914 if (mono_field_is_deleted (field))
9919 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9921 /* The mempool is protected by the loader lock */
9922 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9923 info->num_fields = count;
9925 /* Try to find a size for this type in metadata */
9926 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9928 if (klass->parent) {
9929 int parent_size = mono_class_native_size (klass->parent, NULL);
9931 /* Add parent size to real size */
9932 native_size += parent_size;
9933 info->native_size = parent_size;
9938 while ((field = mono_class_get_fields (klass, &iter))) {
9942 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9945 if (mono_field_is_deleted (field))
9947 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9948 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9949 NULL, NULL, &info->fields [j].mspec);
9951 info->fields [j].field = field;
9953 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9954 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
9955 /* This field is a hack inserted by MCS to empty structures */
9960 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9961 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
9962 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9963 &align, TRUE, klass->unicode);
9964 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9965 min_align = MAX (align, min_align);
9966 info->fields [j].offset = info->native_size;
9967 info->fields [j].offset += align - 1;
9968 info->fields [j].offset &= ~(align - 1);
9969 info->native_size = info->fields [j].offset + size;
9971 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
9972 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9973 &align, TRUE, klass->unicode);
9974 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9975 min_align = MAX (align, min_align);
9976 info->fields [j].offset = field->offset - sizeof (MonoObject);
9977 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
9983 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9984 info->native_size = MAX (native_size, info->native_size);
9987 if (info->native_size & (min_align - 1)) {
9988 info->native_size += min_align - 1;
9989 info->native_size &= ~(min_align - 1);
9992 info->min_align = min_align;
9994 /* Update the class's blittable info, if the layouts don't match */
9995 if (info->native_size != mono_class_value_size (klass, NULL))
9996 klass->blittable = FALSE;
9998 /* If this is an array type, ensure that we have element info */
9999 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10000 mono_marshal_load_type_info (klass->element_class);
10003 loads_list = TlsGetValue (load_type_info_tls_id);
10004 loads_list = g_slist_remove (loads_list, klass);
10005 TlsSetValue (load_type_info_tls_id, loads_list);
10007 /*We do double-checking locking on marshal_info */
10008 mono_memory_barrier ();
10010 klass->marshal_info = info;
10012 mono_loader_unlock ();
10014 return klass->marshal_info;
10018 * mono_class_native_size:
10021 * Returns: the native size of an object instance (when marshaled
10022 * to unmanaged code)
10025 mono_class_native_size (MonoClass *klass, guint32 *align)
10027 if (!klass->marshal_info) {
10028 if (mono_marshal_is_loading_type_info (klass)) {
10033 mono_marshal_load_type_info (klass);
10038 *align = klass->marshal_info->min_align;
10040 return klass->marshal_info->native_size;
10043 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10044 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10045 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10046 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10049 * mono_type_native_stack_size:
10050 * @t: the type to return the size it uses on the stack
10052 * Returns: the number of bytes required to hold an instance of this
10053 * type on the native stack
10056 mono_type_native_stack_size (MonoType *t, guint32 *align)
10060 g_assert (t != NULL);
10066 *align = sizeof (gpointer);
10067 return sizeof (gpointer);
10071 case MONO_TYPE_BOOLEAN:
10072 case MONO_TYPE_CHAR:
10083 case MONO_TYPE_STRING:
10084 case MONO_TYPE_OBJECT:
10085 case MONO_TYPE_CLASS:
10086 case MONO_TYPE_SZARRAY:
10087 case MONO_TYPE_PTR:
10088 case MONO_TYPE_FNPTR:
10089 case MONO_TYPE_ARRAY:
10090 *align = sizeof (gpointer);
10091 return sizeof (gpointer);
10096 *align = ALIGNMENT (gdouble);
10100 *align = ALIGNMENT (glong);
10102 case MONO_TYPE_GENERICINST:
10103 if (!mono_type_generic_inst_is_valuetype (t)) {
10104 *align = sizeof (gpointer);
10105 return sizeof (gpointer);
10108 case MONO_TYPE_TYPEDBYREF:
10109 case MONO_TYPE_VALUETYPE: {
10111 MonoClass *klass = mono_class_from_mono_type (t);
10113 if (klass->enumtype)
10114 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10116 size = mono_class_native_size (klass, align);
10117 *align = *align + 3;
10127 g_error ("type 0x%02x unknown", t->type);
10133 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10134 gboolean as_field, gboolean unicode)
10136 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10139 switch (native_type) {
10140 case MONO_NATIVE_BOOLEAN:
10143 case MONO_NATIVE_I1:
10144 case MONO_NATIVE_U1:
10147 case MONO_NATIVE_I2:
10148 case MONO_NATIVE_U2:
10149 case MONO_NATIVE_VARIANTBOOL:
10152 case MONO_NATIVE_I4:
10153 case MONO_NATIVE_U4:
10154 case MONO_NATIVE_ERROR:
10157 case MONO_NATIVE_I8:
10158 case MONO_NATIVE_U8:
10159 *align = ALIGNMENT(guint64);
10161 case MONO_NATIVE_R4:
10164 case MONO_NATIVE_R8:
10165 *align = ALIGNMENT(double);
10167 case MONO_NATIVE_INT:
10168 case MONO_NATIVE_UINT:
10169 case MONO_NATIVE_LPSTR:
10170 case MONO_NATIVE_LPWSTR:
10171 case MONO_NATIVE_LPTSTR:
10172 case MONO_NATIVE_BSTR:
10173 case MONO_NATIVE_ANSIBSTR:
10174 case MONO_NATIVE_TBSTR:
10175 case MONO_NATIVE_LPARRAY:
10176 case MONO_NATIVE_SAFEARRAY:
10177 case MONO_NATIVE_IUNKNOWN:
10178 case MONO_NATIVE_IDISPATCH:
10179 case MONO_NATIVE_INTERFACE:
10180 case MONO_NATIVE_ASANY:
10181 case MONO_NATIVE_FUNC:
10182 case MONO_NATIVE_LPSTRUCT:
10183 *align = ALIGNMENT(gpointer);
10184 return sizeof (gpointer);
10185 case MONO_NATIVE_STRUCT:
10186 klass = mono_class_from_mono_type (type);
10187 if (klass == mono_defaults.object_class &&
10188 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10192 return mono_class_native_size (klass, align);
10193 case MONO_NATIVE_BYVALTSTR: {
10194 int esize = unicode ? 2: 1;
10197 return mspec->data.array_data.num_elem * esize;
10199 case MONO_NATIVE_BYVALARRAY: {
10200 // FIXME: Have to consider ArraySubType
10202 klass = mono_class_from_mono_type (type);
10203 if (klass->element_class == mono_defaults.char_class) {
10204 esize = unicode ? 2 : 1;
10207 esize = mono_class_native_size (klass->element_class, align);
10210 return mspec->data.array_data.num_elem * esize;
10212 case MONO_NATIVE_CUSTOM:
10213 *align = sizeof (gpointer);
10214 return sizeof (gpointer);
10216 case MONO_NATIVE_CURRENCY:
10217 case MONO_NATIVE_VBBYREFSTR:
10219 g_error ("native type %02x not implemented", native_type);
10222 g_assert_not_reached ();
10227 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10235 t = &o->vtable->klass->byval_arg;
10239 case MONO_TYPE_PTR:
10242 case MONO_TYPE_BOOLEAN:
10245 case MONO_TYPE_CHAR:
10250 return mono_object_unbox (o);
10252 case MONO_TYPE_STRING:
10253 switch (string_encoding) {
10254 case MONO_NATIVE_LPWSTR:
10255 return mono_string_to_utf16 ((MonoString*)o);
10257 case MONO_NATIVE_LPSTR:
10258 return mono_string_to_lpstr ((MonoString*)o);
10261 g_warning ("marshaling conversion %d not implemented", string_encoding);
10262 g_assert_not_reached ();
10265 case MONO_TYPE_CLASS:
10266 case MONO_TYPE_VALUETYPE: {
10267 MonoMethod *method;
10270 MonoBoolean delete_old = FALSE;
10272 klass = t->data.klass;
10274 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10277 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10278 klass->blittable || klass->enumtype))
10279 return mono_object_unbox (o);
10281 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10283 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10284 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10288 pa [2] = &delete_old;
10290 mono_runtime_invoke (method, NULL, pa, NULL);
10297 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10303 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10311 t = &o->vtable->klass->byval_arg;
10313 case MONO_TYPE_STRING:
10314 switch (string_encoding) {
10315 case MONO_NATIVE_LPWSTR:
10316 case MONO_NATIVE_LPSTR:
10317 mono_marshal_free (ptr);
10320 g_warning ("marshaling conversion %d not implemented", string_encoding);
10321 g_assert_not_reached ();
10324 case MONO_TYPE_CLASS:
10325 case MONO_TYPE_VALUETYPE: {
10326 klass = t->data.klass;
10328 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10329 klass->blittable || klass->enumtype))
10332 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10333 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10339 mono_runtime_invoke (method, NULL, pa, NULL);
10342 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10343 mono_struct_delete_old (klass, ptr);
10346 mono_marshal_free (ptr);
10355 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10357 MonoMethodSignature *sig, *csig;
10358 MonoMethodBuilder *mb;
10362 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10363 mb->method->slot = -1;
10365 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10366 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10368 sig = mono_method_signature (method);
10369 csig = signature_dup (method->klass->image, sig);
10370 csig->generic_param_count = 0;
10372 mono_mb_emit_ldarg (mb, 0);
10373 for (i = 0; i < csig->param_count; i++)
10374 mono_mb_emit_ldarg (mb, i + 1);
10375 mono_mb_emit_managed_call (mb, method, NULL);
10376 mono_mb_emit_byte (mb, CEE_RET);
10378 /* We can corlib internal methods */
10379 mb->skip_visibility = TRUE;
10381 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10389 * The mono_win32_compat_* functions are implementations of inline
10390 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10391 * although not exported by kernel32.
10393 * We map the appropiate kernel32 entries to these functions using
10394 * dllmaps declared in the global etc/mono/config.
10398 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10400 if (!dest || !source)
10403 memcpy (dest, source, length);
10407 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10409 memset (dest, fill, length);
10413 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10415 if (!dest || !source)
10418 memmove (dest, source, length);
10422 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10424 memset (dest, 0, length);
10428 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10433 for (i = 0; i < len; ++i)
10437 g_assert (i < len);
10440 while (byte && !(byte & 1))
10442 g_assert (byte == 1);
10445 *bitmask = buf [i];
10449 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10451 MonoMethodBuilder *mb;
10452 MonoMethodSignature *sig, *csig;
10453 MonoExceptionClause *clause;
10458 int i, param_count, sig_size, pos_leave;
10462 klass = method->klass;
10463 image = method->klass->image;
10464 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10466 if ((res = mono_marshal_find_in_cache (cache, method)))
10469 sig = mono_method_signature (method);
10470 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10472 /* add "this" and exception param */
10473 param_count = sig->param_count + sig->hasthis + 1;
10475 /* dup & extend signature */
10476 csig = mono_metadata_signature_alloc (image, param_count);
10477 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
10478 memcpy (csig, sig, sig_size);
10479 csig->param_count = param_count;
10482 csig->call_convention = MONO_CALL_DEFAULT;
10484 if (sig->hasthis) {
10486 csig->params [0] = &klass->byval_arg;
10487 /* move params up by one */
10488 for (i = 0; i < sig->param_count; i++)
10489 csig->params [i + 1] = sig->params [i];
10492 /* setup exception param as byref+[out] */
10493 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10494 &mono_defaults.exception_class->byval_arg);
10495 csig->params [param_count - 1]->byref = 1;
10496 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10498 /* convert struct return to object */
10499 if (MONO_TYPE_ISSTRUCT (sig->ret))
10500 csig->ret = &mono_defaults.object_class->byval_arg;
10502 /* local 0 (temp for exception object) */
10503 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10505 /* local 1 (temp for result) */
10506 if (!MONO_TYPE_IS_VOID (sig->ret))
10507 mono_mb_add_local (mb, sig->ret);
10509 /* clear exception arg */
10510 mono_mb_emit_ldarg (mb, param_count - 1);
10511 mono_mb_emit_byte (mb, CEE_LDNULL);
10512 mono_mb_emit_byte (mb, CEE_STIND_REF);
10515 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10516 clause->try_offset = mono_mb_get_label (mb);
10518 /* push method's args */
10519 for (i = 0; i < param_count - 1; i++) {
10523 mono_mb_emit_ldarg (mb, i);
10525 /* get the byval type of the param */
10526 klass = mono_class_from_mono_type (csig->params [i]);
10527 type = &klass->byval_arg;
10529 /* unbox struct args */
10530 if (MONO_TYPE_ISSTRUCT (type)) {
10531 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10533 /* byref args & and the "this" arg must remain a ptr.
10534 Otherwise make a copy of the value type */
10535 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10536 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10538 csig->params [i] = &mono_defaults.object_class->byval_arg;
10543 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10544 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10546 mono_mb_emit_op (mb, CEE_CALL, method);
10548 /* save result at local 1 */
10549 if (!MONO_TYPE_IS_VOID (sig->ret))
10550 mono_mb_emit_stloc (mb, 1);
10552 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10555 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10556 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10557 clause->data.catch_class = mono_defaults.object_class;
10559 clause->handler_offset = mono_mb_get_label (mb);
10561 /* store exception at local 0 */
10562 mono_mb_emit_stloc (mb, 0);
10563 mono_mb_emit_ldarg (mb, param_count - 1);
10564 mono_mb_emit_ldloc (mb, 0);
10565 mono_mb_emit_byte (mb, CEE_STIND_REF);
10566 mono_mb_emit_branch (mb, CEE_LEAVE);
10568 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10570 mono_mb_set_clauses (mb, 1, clause);
10572 mono_mb_patch_branch (mb, pos_leave);
10575 if (!MONO_TYPE_IS_VOID (sig->ret)) {
10576 mono_mb_emit_ldloc (mb, 1);
10578 /* box the return value */
10579 if (MONO_TYPE_ISSTRUCT (sig->ret))
10580 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
10583 mono_mb_emit_byte (mb, CEE_RET);
10585 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
10592 * mono_marshal_free_dynamic_wrappers:
10594 * Free wrappers of the dynamic method METHOD.
10597 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
10599 g_assert (method->dynamic);
10601 mono_marshal_lock ();
10603 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10604 * they could be shared with other methods ?
10606 if (method->klass->image->runtime_invoke_direct_cache)
10607 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10608 mono_marshal_unlock ();