2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/debug-helpers.h"
27 #include "mono/metadata/threadpool.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/metadata-internals.h"
31 #include "mono/metadata/domain-internals.h"
32 #include "mono/metadata/gc-internal.h"
33 #include "mono/metadata/threads-types.h"
34 #include "mono/metadata/string-icalls.h"
35 #include "mono/metadata/attrdefs.h"
36 #include "mono/metadata/gc-internal.h"
37 #include "mono/metadata/cominterop.h"
38 #include "mono/utils/mono-counters.h"
39 #include "mono/utils/mono-tls.h"
40 #include "mono/utils/mono-memory-model.h"
44 /* #define DEBUG_RUNTIME_CODE */
46 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
50 MONO_MARSHAL_NONE, /* No marshalling needed */
51 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
52 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
53 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
54 } MonoXDomainMarshalType;
57 #include "mono/cil/opcode.def"
62 struct _MonoRemotingMethods {
64 MonoMethod *invoke_with_check;
65 MonoMethod *xdomain_invoke;
66 MonoMethod *xdomain_dispatch;
69 typedef struct _MonoRemotingMethods MonoRemotingMethods;
72 * This mutex protects the various marshalling related caches in MonoImage
73 * and a few other data structures static to this file.
74 * Note that when this lock is held it is not possible to take other runtime
75 * locks like the loader lock.
77 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
78 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
79 static CRITICAL_SECTION marshal_mutex;
80 static gboolean marshal_mutex_initialized;
82 static MonoNativeTlsKey last_error_tls_id;
84 static MonoNativeTlsKey load_type_info_tls_id;
86 static gboolean use_aot_wrappers;
89 delegate_hash_table_add (MonoDelegate *d);
92 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
95 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
98 mono_struct_delete_old (MonoClass *klass, char *ptr);
101 mono_marshal_string_to_utf16 (MonoString *s);
104 mono_marshal_string_to_utf16_copy (MonoString *s);
107 mono_string_to_lpstr (MonoString *string_obj);
109 static MonoStringBuilder *
110 mono_string_utf8_to_builder2 (char *text);
112 static MonoStringBuilder *
113 mono_string_utf16_to_builder2 (gunichar2 *text);
116 mono_string_new_len_wrapper (const char *text, guint length);
119 mono_string_from_byvalwstr (gunichar2 *data, int len);
122 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
125 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
128 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
130 static MonoAsyncResult *
131 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
137 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
140 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
143 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
146 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
148 static MonoReflectionType *
149 type_from_handle (MonoType *handle);
152 mono_marshal_set_last_error_windows (int error);
154 static void init_safe_handle (void);
156 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
157 static MonoMethod *sh_dangerous_add_ref;
158 static MonoMethod *sh_dangerous_release;
164 sh_dangerous_add_ref = mono_class_get_method_from_name (
165 mono_defaults.safehandle_class, "DangerousAddRef", 1);
166 sh_dangerous_release = mono_class_get_method_from_name (
167 mono_defaults.safehandle_class, "DangerousRelease", 0);
171 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
173 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
175 mono_register_jit_icall (func, name, sig, save);
178 static MonoMethodSignature*
179 signature_dup (MonoImage *image, MonoMethodSignature *sig)
181 MonoMethodSignature *res;
184 res = mono_metadata_signature_alloc (image, sig->param_count);
185 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
186 memcpy (res, sig, sigsize);
192 mono_signature_no_pinvoke (MonoMethod *method)
194 MonoMethodSignature *sig = mono_method_signature (method);
196 sig = signature_dup (method->klass->image, sig);
197 sig->pinvoke = FALSE;
204 mono_marshal_init (void)
206 static gboolean module_initialized = FALSE;
208 if (!module_initialized) {
209 module_initialized = TRUE;
210 InitializeCriticalSection (&marshal_mutex);
211 marshal_mutex_initialized = TRUE;
212 mono_native_tls_alloc (&last_error_tls_id, NULL);
213 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
215 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
216 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
217 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
218 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
219 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
220 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
221 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
222 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
223 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
224 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
225 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
226 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
227 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
228 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
229 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
230 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
231 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
232 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
233 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
234 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
235 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
236 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
237 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
238 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
239 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
240 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
241 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
242 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
243 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
244 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
245 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
246 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
247 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
248 register_icall (g_free, "g_free", "void ptr", FALSE);
249 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
250 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
251 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
252 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
253 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
254 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
255 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
256 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
257 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
258 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
259 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
260 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
261 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
262 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
263 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
264 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
266 mono_cominterop_init ();
271 mono_marshal_cleanup (void)
273 mono_cominterop_cleanup ();
275 mono_native_tls_free (load_type_info_tls_id);
276 mono_native_tls_free (last_error_tls_id);
277 DeleteCriticalSection (&marshal_mutex);
278 marshal_mutex_initialized = FALSE;
281 MonoClass *byte_array_class;
282 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
283 static MonoMethod *method_set_context, *method_get_context;
284 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
287 mono_remoting_marshal_init (void)
291 static gboolean module_initialized = FALSE;
293 if (!module_initialized) {
294 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
295 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
296 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
297 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
299 klass = mono_defaults.real_proxy_class;
300 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
302 klass = mono_defaults.exception_class;
303 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
305 klass = mono_defaults.thread_class;
306 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
308 klass = mono_defaults.appdomain_class;
309 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
310 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
312 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
313 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
315 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
316 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
318 module_initialized = TRUE;
323 mono_delegate_to_ftnptr (MonoDelegate *delegate)
325 MonoMethod *method, *wrapper;
327 uint32_t target_handle = 0;
332 if (delegate->delegate_trampoline)
333 return delegate->delegate_trampoline;
335 klass = ((MonoObject *)delegate)->vtable->klass;
336 g_assert (klass->delegate);
338 method = delegate->method;
340 if (mono_method_signature (method)->pinvoke) {
341 const char *exc_class, *exc_arg;
344 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
346 g_assert (exc_class);
347 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
352 if (delegate->target) {
353 /* Produce a location which can be embedded in JITted code */
354 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
357 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
359 delegate->delegate_trampoline = mono_compile_method (wrapper);
361 // Add the delegate to the delegate hash table
362 delegate_hash_table_add (delegate);
364 /* when the object is collected, collect the dynamic method, too */
365 mono_object_register_finalizer ((MonoObject*)delegate);
367 return delegate->delegate_trampoline;
371 * this hash table maps from a delegate trampoline object to a weak reference
372 * of the delegate. As an optimizations with a non-moving GC we store the
373 * object pointer itself, otherwise we use a GC handle.
375 static GHashTable *delegate_hash_table;
378 delegate_hash_table_new (void) {
379 return g_hash_table_new (NULL, NULL);
383 delegate_hash_table_remove (MonoDelegate *d)
385 #ifdef HAVE_MOVING_COLLECTOR
388 mono_marshal_lock ();
389 if (delegate_hash_table == NULL)
390 delegate_hash_table = delegate_hash_table_new ();
391 #ifdef HAVE_MOVING_COLLECTOR
392 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
394 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
395 mono_marshal_unlock ();
396 #ifdef HAVE_MOVING_COLLECTOR
397 mono_gchandle_free (gchandle);
402 delegate_hash_table_add (MonoDelegate *d)
404 #ifdef HAVE_MOVING_COLLECTOR
405 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
406 guint32 old_gchandle;
408 mono_marshal_lock ();
409 if (delegate_hash_table == NULL)
410 delegate_hash_table = delegate_hash_table_new ();
411 #ifdef HAVE_MOVING_COLLECTOR
412 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
413 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
415 mono_gchandle_free (old_gchandle);
417 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
419 mono_marshal_unlock ();
423 * mono_marshal_use_aot_wrappers:
425 * Instructs this module to use AOT compatible wrappers.
428 mono_marshal_use_aot_wrappers (gboolean use)
430 use_aot_wrappers = use;
434 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
436 static MonoClass *UnmanagedFunctionPointerAttribute;
437 MonoCustomAttrInfo *cinfo;
438 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
440 if (!UnmanagedFunctionPointerAttribute)
441 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
443 /* The attribute is only available in Net 2.0 */
444 if (UnmanagedFunctionPointerAttribute) {
446 * The pinvoke attributes are stored in a real custom attribute so we have to
449 cinfo = mono_custom_attrs_from_class (klass);
451 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
453 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
456 mono_custom_attrs_free (cinfo);
462 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
464 #ifdef HAVE_MOVING_COLLECTOR
472 mono_marshal_lock ();
473 if (delegate_hash_table == NULL)
474 delegate_hash_table = delegate_hash_table_new ();
476 #ifdef HAVE_MOVING_COLLECTOR
477 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
478 mono_marshal_unlock ();
480 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
484 d = g_hash_table_lookup (delegate_hash_table, ftn);
485 mono_marshal_unlock ();
488 /* This is a native function, so construct a delegate for it */
489 MonoMethodSignature *sig;
491 MonoMarshalSpec **mspecs;
492 MonoMethod *invoke = mono_get_delegate_invoke (klass);
493 MonoMethodPInvoke piinfo;
497 if (use_aot_wrappers) {
498 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
499 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
501 memset (&piinfo, 0, sizeof (piinfo));
502 parse_unmanaged_function_pointer_attr (klass, &piinfo);
504 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
505 mono_method_get_marshal_info (invoke, mspecs);
506 /* Freed below so don't alloc from mempool */
507 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
510 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
513 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
515 mono_metadata_free_marshal_spec (mspecs [i]);
520 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
521 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
524 if (d->object.vtable->domain != mono_domain_get ())
525 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
531 mono_delegate_free_ftnptr (MonoDelegate *delegate)
536 delegate_hash_table_remove (delegate);
538 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
540 if (!delegate->target) {
541 /* The wrapper method is shared between delegates -> no need to free it */
548 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
551 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
553 /*the target gchandle is the first entry after size and the wrapper itself.*/
554 gchandle = GPOINTER_TO_UINT (method_data [2]);
557 mono_gchandle_free (gchandle);
559 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
564 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
566 MonoDomain *domain = mono_domain_get ();
572 while (data [len]) len++;
574 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
578 mono_array_to_savearray (MonoArray *array)
583 g_assert_not_reached ();
588 mono_array_to_lparray (MonoArray *array)
590 gpointer *nativeArray = NULL;
591 int nativeArraySize = 0;
600 klass = array->obj.vtable->klass;
602 switch (klass->element_class->byval_arg.type) {
604 g_assert_not_reached ();
607 case MONO_TYPE_CLASS:
608 nativeArraySize = array->max_length;
609 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
610 for(i = 0; i < nativeArraySize; ++i)
611 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
615 case MONO_TYPE_BOOLEAN:
628 case MONO_TYPE_VALUETYPE:
632 case MONO_TYPE_GENERICINST:
633 case MONO_TYPE_OBJECT:
634 case MONO_TYPE_ARRAY:
635 case MONO_TYPE_SZARRAY:
636 case MONO_TYPE_STRING:
638 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
639 g_assert_not_reached ();
642 return array->vector;
646 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
657 klass = array->obj.vtable->klass;
659 switch (klass->element_class->byval_arg.type) {
660 case MONO_TYPE_CLASS:
661 for(i = 0; i < array->max_length; ++i)
662 mono_marshal_free_ccw(nativeArray[i]);
670 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
672 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
674 if (elclass == mono_defaults.byte_class) {
675 GError *error = NULL;
679 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
682 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
686 g_error_free (error);
689 g_assert_not_reached ();
693 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
695 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
697 if (elclass == mono_defaults.byte_class) {
699 GError *error = NULL;
701 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
703 MonoException *exc = mono_get_exception_argument ("string", error->message);
704 g_error_free (error);
705 mono_raise_exception (exc);
708 memcpy (native_arr, as, MIN (strlen (as), elnum));
711 g_assert_not_reached ();
716 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
718 GError *error = NULL;
728 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
730 if (items_written > mono_stringbuilder_capacity (sb))
731 items_written = mono_stringbuilder_capacity (sb);
734 if (! sb->str || sb->str == sb->cached_str) {
735 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
736 sb->cached_str = NULL;
739 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
740 sb->length = items_written;
742 g_error_free (error);
748 mono_string_utf8_to_builder2 (char *text)
751 MonoStringBuilder *sb;
752 static MonoClass *string_builder_class;
753 static MonoMethod *sb_ctor;
760 if (!string_builder_class) {
761 MonoMethodDesc *desc;
763 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
764 g_assert (string_builder_class);
765 desc = mono_method_desc_new (":.ctor(int)", FALSE);
766 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
768 mono_method_desc_free (desc);
773 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
776 mono_runtime_invoke (sb_ctor, sb, args, &exc);
779 mono_string_utf8_to_builder (sb, text);
785 * FIXME: This routine does not seem to do what it seems to do
786 * the @text is never copied into the string builder
789 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
796 g_assert (mono_string_chars (sb->str) == text);
798 for (len = 0; text [len] != 0; ++len)
805 mono_string_utf16_to_builder2 (gunichar2 *text)
808 MonoStringBuilder *sb;
809 static MonoClass *string_builder_class;
810 static MonoMethod *sb_ctor;
817 if (!string_builder_class) {
818 MonoMethodDesc *desc;
820 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
821 g_assert (string_builder_class);
822 desc = mono_method_desc_new (":.ctor(int)", FALSE);
823 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
825 mono_method_desc_free (desc);
828 for (len = 0; text [len] != 0; ++len)
831 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
834 mono_runtime_invoke (sb_ctor, sb, args, &exc);
838 memcpy (mono_string_chars (sb->str), text, len * 2);
844 * mono_string_builder_to_utf8:
845 * @sb: the string builder
847 * Converts to utf8 the contents of the MonoStringBuilder.
849 * Returns: a utf8 string with the contents of the StringBuilder.
851 * The return value must be released with g_free.
854 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
856 GError *error = NULL;
857 gchar *tmp, *res = NULL;
862 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
864 * The sb could have been allocated with the default capacity and be empty.
865 * we need to alloc a buffer of the default capacity in this case.
867 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
868 sb->cached_str = NULL;
871 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
873 g_error_free (error);
874 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
876 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
877 memcpy (res, tmp, sb->length + 1);
885 * mono_string_builder_to_utf16:
886 * @sb: the string builder
888 * Converts to utf16 the contents of the MonoStringBuilder.
890 * Returns: a utf16 string with the contents of the StringBuilder.
892 * The return value must not be freed.
895 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
903 * The stringbuilder might not have ownership of this string. If this is
904 * the case, we must duplicate the string, so that we don't munge immutable
907 if (sb->str == sb->cached_str) {
909 * The sb could have been allocated with the default capacity and be empty.
910 * we need to alloc a buffer of the default capacity in this case.
912 if (sb->str->length == 0)
913 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
915 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
916 sb->cached_str = NULL;
920 *(mono_string_chars (sb->str)) = '\0';
922 return mono_string_chars (sb->str);
926 mono_string_to_lpstr (MonoString *s)
931 GError *error = NULL;
937 as = CoTaskMemAlloc (1);
942 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
944 MonoException *exc = mono_get_exception_argument ("string", error->message);
945 g_error_free (error);
946 mono_raise_exception(exc);
949 as = CoTaskMemAlloc (len + 1);
950 memcpy (as, tmp, len + 1);
955 return mono_string_to_utf8 (s);
960 mono_string_to_ansibstr (MonoString *string_obj)
962 g_error ("UnmanagedMarshal.BStr is not implemented.");
967 * mono_string_to_byvalstr:
968 * @dst: Where to store the null-terminated utf8 decoded string.
969 * @src: the MonoString to copy.
970 * @size: the maximum number of bytes to copy.
972 * Copies the MonoString pointed to by @src as a utf8 string
973 * into @dst, it copies at most @size bytes into the destination.
976 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
981 g_assert (dst != NULL);
984 memset (dst, 0, size);
988 s = mono_string_to_utf8 (src);
989 len = MIN (size, strlen (s));
992 memcpy (dst, s, len);
997 * mono_string_to_byvalwstr:
998 * @dst: Where to store the null-terminated utf16 decoded string.
999 * @src: the MonoString to copy.
1000 * @size: the maximum number of bytes to copy.
1002 * Copies the MonoString pointed to by @src as a utf16 string into
1003 * @dst, it copies at most @size bytes into the destination (including
1004 * a terminating 16-bit zero terminator).
1007 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1011 g_assert (dst != NULL);
1012 g_assert (size > 1);
1015 memset (dst, 0, size * 2);
1019 len = MIN (size, (mono_string_length (src)));
1020 memcpy (dst, mono_string_chars (src), size * 2);
1021 if (size <= mono_string_length (src))
1023 *((gunichar2 *) dst + len) = 0;
1027 mono_string_new_len_wrapper (const char *text, guint length)
1029 return mono_string_new_len (mono_domain_get (), text, length);
1033 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1036 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1037 mono_mb_emit_byte (mb, CEE_LDIND_I);
1038 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1039 mono_mb_emit_byte (mb, CEE_ADD);
1040 mono_mb_emit_byte (mb, CEE_LDIND_I);
1041 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1042 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1043 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1044 pos = mono_mb_emit_branch (mb, branch_code);
1049 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1052 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1053 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1054 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1055 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1056 mono_mb_emit_icon (mb, -1);
1057 pos = mono_mb_emit_branch (mb, branch_code);
1062 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1064 static int offset = -1;
1068 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1070 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1071 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1072 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1073 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1074 mono_mb_emit_ldflda (mb, offset);
1075 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1076 mono_mb_emit_icon (mb, mask);
1077 mono_mb_emit_byte (mb, CEE_AND);
1078 mono_mb_emit_icon (mb, 0);
1079 return mono_mb_emit_branch (mb, branch_code);
1083 * mono_mb_emit_exception_marshal_directive:
1085 * This function assumes ownership of MSG, which should be malloc-ed.
1088 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1093 s = mono_image_strdup (mb->method->klass->image, msg);
1098 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1102 mono_type_to_ldind (MonoType *type)
1108 switch (type->type) {
1110 return CEE_LDIND_I1;
1112 case MONO_TYPE_BOOLEAN:
1113 return CEE_LDIND_U1;
1115 return CEE_LDIND_I2;
1117 case MONO_TYPE_CHAR:
1118 return CEE_LDIND_U2;
1120 return CEE_LDIND_I4;
1122 return CEE_LDIND_U4;
1126 case MONO_TYPE_FNPTR:
1128 case MONO_TYPE_CLASS:
1129 case MONO_TYPE_STRING:
1130 case MONO_TYPE_OBJECT:
1131 case MONO_TYPE_SZARRAY:
1132 case MONO_TYPE_ARRAY:
1133 return CEE_LDIND_REF;
1136 return CEE_LDIND_I8;
1138 return CEE_LDIND_R4;
1140 return CEE_LDIND_R8;
1141 case MONO_TYPE_VALUETYPE:
1142 if (type->data.klass->enumtype) {
1143 type = mono_class_enum_basetype (type->data.klass);
1147 case MONO_TYPE_TYPEDBYREF:
1149 case MONO_TYPE_GENERICINST:
1150 type = &type->data.generic_class->container_class->byval_arg;
1153 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1159 mono_type_to_stind (MonoType *type)
1165 switch (type->type) {
1168 case MONO_TYPE_BOOLEAN:
1169 return CEE_STIND_I1;
1172 case MONO_TYPE_CHAR:
1173 return CEE_STIND_I2;
1176 return CEE_STIND_I4;
1180 case MONO_TYPE_FNPTR:
1182 case MONO_TYPE_CLASS:
1183 case MONO_TYPE_STRING:
1184 case MONO_TYPE_OBJECT:
1185 case MONO_TYPE_SZARRAY:
1186 case MONO_TYPE_ARRAY:
1187 return CEE_STIND_REF;
1190 return CEE_STIND_I8;
1192 return CEE_STIND_R4;
1194 return CEE_STIND_R8;
1195 case MONO_TYPE_VALUETYPE:
1196 if (type->data.klass->enumtype) {
1197 type = mono_class_enum_basetype (type->data.klass);
1201 case MONO_TYPE_TYPEDBYREF:
1203 case MONO_TYPE_GENERICINST:
1204 type = &type->data.generic_class->container_class->byval_arg;
1207 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1213 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1216 case MONO_MARSHAL_CONV_BOOL_I4:
1217 mono_mb_emit_ldloc (mb, 1);
1218 mono_mb_emit_ldloc (mb, 0);
1219 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1220 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1221 mono_mb_emit_byte (mb, 3);
1222 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1223 mono_mb_emit_byte (mb, CEE_BR_S);
1224 mono_mb_emit_byte (mb, 1);
1225 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1226 mono_mb_emit_byte (mb, CEE_STIND_I1);
1228 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1229 mono_mb_emit_ldloc (mb, 1);
1230 mono_mb_emit_ldloc (mb, 0);
1231 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1232 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1233 mono_mb_emit_byte (mb, 3);
1234 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1235 mono_mb_emit_byte (mb, CEE_BR_S);
1236 mono_mb_emit_byte (mb, 1);
1237 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1238 mono_mb_emit_byte (mb, CEE_STIND_I1);
1240 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1241 MonoClass *eklass = NULL;
1244 if (type->type == MONO_TYPE_SZARRAY) {
1245 eklass = type->data.klass;
1247 g_assert_not_reached ();
1250 esize = mono_class_native_size (eklass, NULL);
1252 /* create a new array */
1253 mono_mb_emit_ldloc (mb, 1);
1254 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1255 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1256 mono_mb_emit_byte (mb, CEE_STIND_I);
1258 if (eklass->blittable) {
1259 /* copy the elements */
1260 mono_mb_emit_ldloc (mb, 1);
1261 mono_mb_emit_byte (mb, CEE_LDIND_I);
1262 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1263 mono_mb_emit_byte (mb, CEE_ADD);
1264 mono_mb_emit_ldloc (mb, 0);
1265 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1266 mono_mb_emit_byte (mb, CEE_PREFIX1);
1267 mono_mb_emit_byte (mb, CEE_CPBLK);
1270 int array_var, src_var, dst_var, index_var;
1271 guint32 label2, label3;
1273 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1274 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1275 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1278 mono_mb_emit_ldloc (mb, 1);
1279 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1280 mono_mb_emit_stloc (mb, array_var);
1282 /* save the old src pointer */
1283 mono_mb_emit_ldloc (mb, 0);
1284 mono_mb_emit_stloc (mb, src_var);
1285 /* save the old dst pointer */
1286 mono_mb_emit_ldloc (mb, 1);
1287 mono_mb_emit_stloc (mb, dst_var);
1289 /* Emit marshalling loop */
1290 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1291 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1292 mono_mb_emit_stloc (mb, index_var);
1295 label2 = mono_mb_get_label (mb);
1296 mono_mb_emit_ldloc (mb, index_var);
1297 mono_mb_emit_ldloc (mb, array_var);
1298 mono_mb_emit_byte (mb, CEE_LDLEN);
1299 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1301 /* src is already set */
1304 mono_mb_emit_ldloc (mb, array_var);
1305 mono_mb_emit_ldloc (mb, index_var);
1306 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1307 mono_mb_emit_stloc (mb, 1);
1309 /* Do the conversion */
1310 emit_struct_conv (mb, eklass, TRUE);
1313 mono_mb_emit_add_to_local (mb, index_var, 1);
1315 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1317 mono_mb_patch_branch (mb, label3);
1319 /* restore the old src pointer */
1320 mono_mb_emit_ldloc (mb, src_var);
1321 mono_mb_emit_stloc (mb, 0);
1322 /* restore the old dst pointer */
1323 mono_mb_emit_ldloc (mb, dst_var);
1324 mono_mb_emit_stloc (mb, 1);
1328 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1329 MonoClass *eclass = mono_defaults.char_class;
1331 /* create a new array */
1332 mono_mb_emit_ldloc (mb, 1);
1333 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1334 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1335 mono_mb_emit_byte (mb, CEE_STIND_REF);
1337 mono_mb_emit_ldloc (mb, 1);
1338 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1339 mono_mb_emit_ldloc (mb, 0);
1340 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1341 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1342 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1345 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1346 mono_mb_emit_ldloc (mb, 1);
1347 mono_mb_emit_ldloc (mb, 0);
1348 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1349 mono_mb_emit_byte (mb, CEE_STIND_REF);
1351 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1352 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_ldloc (mb, 0);
1355 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1356 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_ldloc (mb, 0);
1360 mono_mb_emit_icall (mb, mono_string_from_utf16);
1362 mono_mb_emit_byte (mb, CEE_STIND_REF);
1364 case MONO_MARSHAL_CONV_STR_LPTSTR:
1365 mono_mb_emit_ldloc (mb, 1);
1366 mono_mb_emit_ldloc (mb, 0);
1367 mono_mb_emit_byte (mb, CEE_LDIND_I);
1369 mono_mb_emit_icall (mb, mono_string_from_utf16);
1371 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1373 mono_mb_emit_byte (mb, CEE_STIND_REF);
1375 case MONO_MARSHAL_CONV_STR_LPSTR:
1376 mono_mb_emit_ldloc (mb, 1);
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_byte (mb, CEE_LDIND_I);
1379 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1380 mono_mb_emit_byte (mb, CEE_STIND_REF);
1382 case MONO_MARSHAL_CONV_STR_LPWSTR:
1383 mono_mb_emit_ldloc (mb, 1);
1384 mono_mb_emit_ldloc (mb, 0);
1385 mono_mb_emit_byte (mb, CEE_LDIND_I);
1386 mono_mb_emit_icall (mb, mono_string_from_utf16);
1387 mono_mb_emit_byte (mb, CEE_STIND_REF);
1389 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1390 MonoClass *klass = mono_class_from_mono_type (type);
1391 int src_var, dst_var;
1393 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1394 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1396 /* *dst = new object */
1397 mono_mb_emit_ldloc (mb, 1);
1398 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1399 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1400 mono_mb_emit_byte (mb, CEE_STIND_REF);
1402 /* save the old src pointer */
1403 mono_mb_emit_ldloc (mb, 0);
1404 mono_mb_emit_stloc (mb, src_var);
1405 /* save the old dst pointer */
1406 mono_mb_emit_ldloc (mb, 1);
1407 mono_mb_emit_stloc (mb, dst_var);
1409 /* dst = pointer to newly created object data */
1410 mono_mb_emit_ldloc (mb, 1);
1411 mono_mb_emit_byte (mb, CEE_LDIND_I);
1412 mono_mb_emit_icon (mb, sizeof (MonoObject));
1413 mono_mb_emit_byte (mb, CEE_ADD);
1414 mono_mb_emit_stloc (mb, 1);
1416 emit_struct_conv (mb, klass, TRUE);
1418 /* restore the old src pointer */
1419 mono_mb_emit_ldloc (mb, src_var);
1420 mono_mb_emit_stloc (mb, 0);
1421 /* restore the old dst pointer */
1422 mono_mb_emit_ldloc (mb, dst_var);
1423 mono_mb_emit_stloc (mb, 1);
1426 case MONO_MARSHAL_CONV_DEL_FTN: {
1427 MonoClass *klass = mono_class_from_mono_type (type);
1429 mono_mb_emit_ldloc (mb, 1);
1430 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1431 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1432 mono_mb_emit_ldloc (mb, 0);
1433 mono_mb_emit_byte (mb, CEE_LDIND_I);
1434 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1435 mono_mb_emit_byte (mb, CEE_STIND_REF);
1438 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1439 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1443 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1444 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1445 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1446 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1448 #endif /* DISABLE_COM */
1450 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1452 * Passing SafeHandles as ref does not allow the unmanaged code
1453 * to change the SafeHandle value. If the value is changed,
1454 * we should issue a diagnostic exception (NotSupportedException)
1455 * that informs the user that changes to handles in unmanaged code
1458 * Since we currently have no access to the original
1459 * SafeHandle that was used during the marshalling,
1460 * for now we just ignore this, and ignore/discard any
1461 * changes that might have happened to the handle.
1466 case MONO_MARSHAL_CONV_HANDLEREF: {
1468 * Passing HandleRefs in a struct that is ref()ed does not
1469 * copy the values back to the HandleRef
1474 case MONO_MARSHAL_CONV_STR_BSTR:
1475 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1476 case MONO_MARSHAL_CONV_STR_TBSTR:
1477 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1479 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1481 mono_mb_emit_exception_marshal_directive (mb, msg);
1488 conv_to_icall (MonoMarshalConv conv)
1491 case MONO_MARSHAL_CONV_STR_LPWSTR:
1492 return mono_marshal_string_to_utf16;
1493 case MONO_MARSHAL_CONV_LPWSTR_STR:
1494 return mono_string_from_utf16;
1495 case MONO_MARSHAL_CONV_LPTSTR_STR:
1496 return mono_string_new_wrapper;
1497 case MONO_MARSHAL_CONV_LPSTR_STR:
1498 return mono_string_new_wrapper;
1499 case MONO_MARSHAL_CONV_STR_LPTSTR:
1501 return mono_marshal_string_to_utf16;
1503 return mono_string_to_lpstr;
1505 case MONO_MARSHAL_CONV_STR_LPSTR:
1506 return mono_string_to_lpstr;
1507 case MONO_MARSHAL_CONV_STR_BSTR:
1508 return mono_string_to_bstr;
1509 case MONO_MARSHAL_CONV_BSTR_STR:
1510 return mono_string_from_bstr;
1511 case MONO_MARSHAL_CONV_STR_TBSTR:
1512 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1513 return mono_string_to_ansibstr;
1514 case MONO_MARSHAL_CONV_SB_LPSTR:
1515 return mono_string_builder_to_utf8;
1516 case MONO_MARSHAL_CONV_SB_LPTSTR:
1518 return mono_string_builder_to_utf16;
1520 return mono_string_builder_to_utf8;
1522 case MONO_MARSHAL_CONV_SB_LPWSTR:
1523 return mono_string_builder_to_utf16;
1524 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1525 return mono_array_to_savearray;
1526 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1527 return mono_array_to_lparray;
1528 case MONO_MARSHAL_FREE_LPARRAY:
1529 return mono_free_lparray;
1530 case MONO_MARSHAL_CONV_DEL_FTN:
1531 return mono_delegate_to_ftnptr;
1532 case MONO_MARSHAL_CONV_FTN_DEL:
1533 return mono_ftnptr_to_delegate;
1534 case MONO_MARSHAL_CONV_LPSTR_SB:
1535 return mono_string_utf8_to_builder;
1536 case MONO_MARSHAL_CONV_LPTSTR_SB:
1538 return mono_string_utf16_to_builder;
1540 return mono_string_utf8_to_builder;
1542 case MONO_MARSHAL_CONV_LPWSTR_SB:
1543 return mono_string_utf16_to_builder;
1544 case MONO_MARSHAL_FREE_ARRAY:
1545 return mono_marshal_free_array;
1546 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1547 return mono_string_to_byvalstr;
1548 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1549 return mono_string_to_byvalwstr;
1551 g_assert_not_reached ();
1558 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1563 case MONO_MARSHAL_CONV_BOOL_I4:
1564 mono_mb_emit_ldloc (mb, 1);
1565 mono_mb_emit_ldloc (mb, 0);
1566 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1567 mono_mb_emit_byte (mb, CEE_STIND_I4);
1569 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1570 mono_mb_emit_ldloc (mb, 1);
1571 mono_mb_emit_ldloc (mb, 0);
1572 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1573 mono_mb_emit_byte (mb, CEE_NEG);
1574 mono_mb_emit_byte (mb, CEE_STIND_I2);
1576 case MONO_MARSHAL_CONV_STR_LPWSTR:
1577 case MONO_MARSHAL_CONV_STR_LPSTR:
1578 case MONO_MARSHAL_CONV_STR_LPTSTR:
1579 case MONO_MARSHAL_CONV_STR_BSTR:
1580 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1581 case MONO_MARSHAL_CONV_STR_TBSTR: {
1584 /* free space if free == true */
1585 mono_mb_emit_ldloc (mb, 2);
1586 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1587 mono_mb_emit_ldloc (mb, 1);
1588 mono_mb_emit_byte (mb, CEE_LDIND_I);
1589 mono_mb_emit_icall (mb, g_free);
1590 mono_mb_patch_short_branch (mb, pos);
1592 mono_mb_emit_ldloc (mb, 1);
1593 mono_mb_emit_ldloc (mb, 0);
1594 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1595 mono_mb_emit_icall (mb, conv_to_icall (conv));
1596 mono_mb_emit_byte (mb, CEE_STIND_I);
1599 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1600 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1601 case MONO_MARSHAL_CONV_DEL_FTN:
1602 mono_mb_emit_ldloc (mb, 1);
1603 mono_mb_emit_ldloc (mb, 0);
1604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1605 mono_mb_emit_icall (mb, conv_to_icall (conv));
1606 mono_mb_emit_byte (mb, CEE_STIND_I);
1608 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1609 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1612 mono_mb_emit_ldloc (mb, 1); /* dst */
1613 mono_mb_emit_ldloc (mb, 0);
1614 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1615 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1616 mono_mb_emit_icall (mb, conv_to_icall (conv));
1619 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1620 MonoClass *eklass = NULL;
1623 if (type->type == MONO_TYPE_SZARRAY) {
1624 eklass = type->data.klass;
1626 g_assert_not_reached ();
1629 if (eklass->valuetype)
1630 esize = mono_class_native_size (eklass, NULL);
1632 esize = sizeof (gpointer);
1634 mono_mb_emit_ldloc (mb, 0);
1635 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1636 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1638 if (eklass->blittable) {
1639 mono_mb_emit_ldloc (mb, 1);
1640 mono_mb_emit_ldloc (mb, 0);
1641 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1642 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1643 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1644 mono_mb_emit_byte (mb, CEE_PREFIX1);
1645 mono_mb_emit_byte (mb, CEE_CPBLK);
1647 int array_var, src_var, dst_var, index_var;
1648 guint32 label2, label3;
1650 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1651 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1652 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1655 mono_mb_emit_ldloc (mb, 0);
1656 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1657 mono_mb_emit_stloc (mb, array_var);
1659 /* save the old src pointer */
1660 mono_mb_emit_ldloc (mb, 0);
1661 mono_mb_emit_stloc (mb, src_var);
1662 /* save the old dst pointer */
1663 mono_mb_emit_ldloc (mb, 1);
1664 mono_mb_emit_stloc (mb, dst_var);
1666 /* Emit marshalling loop */
1667 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1668 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1669 mono_mb_emit_stloc (mb, index_var);
1672 label2 = mono_mb_get_label (mb);
1673 mono_mb_emit_ldloc (mb, index_var);
1674 mono_mb_emit_ldloc (mb, array_var);
1675 mono_mb_emit_byte (mb, CEE_LDLEN);
1676 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1679 mono_mb_emit_ldloc (mb, array_var);
1680 mono_mb_emit_ldloc (mb, index_var);
1681 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1682 mono_mb_emit_stloc (mb, 0);
1684 /* dst is already set */
1686 /* Do the conversion */
1687 emit_struct_conv (mb, eklass, FALSE);
1690 mono_mb_emit_add_to_local (mb, index_var, 1);
1692 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1694 mono_mb_patch_branch (mb, label3);
1696 /* restore the old src pointer */
1697 mono_mb_emit_ldloc (mb, src_var);
1698 mono_mb_emit_stloc (mb, 0);
1699 /* restore the old dst pointer */
1700 mono_mb_emit_ldloc (mb, dst_var);
1701 mono_mb_emit_stloc (mb, 1);
1704 mono_mb_patch_branch (mb, pos);
1707 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1708 mono_mb_emit_ldloc (mb, 0);
1709 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1710 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1712 mono_mb_emit_ldloc (mb, 1);
1713 mono_mb_emit_ldloc (mb, 0);
1714 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1715 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1716 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1717 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1718 mono_mb_patch_short_branch (mb, pos);
1721 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1722 int src_var, dst_var;
1724 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1725 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1727 mono_mb_emit_ldloc (mb, 0);
1728 mono_mb_emit_byte (mb, CEE_LDIND_I);
1729 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1731 /* save the old src pointer */
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_stloc (mb, src_var);
1734 /* save the old dst pointer */
1735 mono_mb_emit_ldloc (mb, 1);
1736 mono_mb_emit_stloc (mb, dst_var);
1738 /* src = pointer to object data */
1739 mono_mb_emit_ldloc (mb, 0);
1740 mono_mb_emit_byte (mb, CEE_LDIND_I);
1741 mono_mb_emit_icon (mb, sizeof (MonoObject));
1742 mono_mb_emit_byte (mb, CEE_ADD);
1743 mono_mb_emit_stloc (mb, 0);
1745 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1747 /* restore the old src pointer */
1748 mono_mb_emit_ldloc (mb, src_var);
1749 mono_mb_emit_stloc (mb, 0);
1750 /* restore the old dst pointer */
1751 mono_mb_emit_ldloc (mb, dst_var);
1752 mono_mb_emit_stloc (mb, 1);
1754 mono_mb_patch_branch (mb, pos);
1759 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1760 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1761 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1762 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1764 #endif /* DISABLE_COM */
1766 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1767 int dar_release_slot, pos;
1769 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1772 * The following is ifdefed-out, because I have no way of doing the
1773 * DangerousRelease when destroying the structure
1776 /* set release = false */
1777 mono_mb_emit_icon (mb, 0);
1778 mono_mb_emit_stloc (mb, dar_release_slot);
1779 if (!sh_dangerous_add_ref)
1780 init_safe_handle ();
1782 /* safehandle.DangerousAddRef (ref release) */
1783 mono_mb_emit_ldloc (mb, 0); /* the source */
1784 mono_mb_emit_byte (mb, CEE_LDIND_I);
1785 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1786 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1788 mono_mb_emit_ldloc (mb, 0);
1789 mono_mb_emit_byte (mb, CEE_LDIND_I);
1790 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1791 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1792 mono_mb_patch_branch (mb, pos);
1794 /* Pull the handle field from SafeHandle */
1795 mono_mb_emit_ldloc (mb, 1);
1796 mono_mb_emit_ldloc (mb, 0);
1797 mono_mb_emit_byte (mb, CEE_LDIND_I);
1798 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1799 mono_mb_emit_byte (mb, CEE_LDIND_I);
1800 mono_mb_emit_byte (mb, CEE_STIND_I);
1804 case MONO_MARSHAL_CONV_HANDLEREF: {
1805 mono_mb_emit_ldloc (mb, 1);
1806 mono_mb_emit_ldloc (mb, 0);
1807 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1808 mono_mb_emit_byte (mb, CEE_ADD);
1809 mono_mb_emit_byte (mb, CEE_LDIND_I);
1810 mono_mb_emit_byte (mb, CEE_STIND_I);
1815 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1816 MonoException *exc = mono_get_exception_not_implemented (msg);
1817 g_warning ("%s", msg);
1819 mono_raise_exception (exc);
1825 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1826 MonoMarshalNative string_encoding)
1828 MonoMarshalType *info;
1832 emit_struct_conv(mb, klass->parent, to_object);
1834 info = mono_marshal_load_type_info (klass);
1836 if (info->native_size == 0)
1839 if (klass->blittable) {
1840 int msize = mono_class_value_size (klass, NULL);
1841 g_assert (msize == info->native_size);
1842 mono_mb_emit_ldloc (mb, 1);
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_icon (mb, msize);
1845 mono_mb_emit_byte (mb, CEE_PREFIX1);
1846 mono_mb_emit_byte (mb, CEE_CPBLK);
1848 mono_mb_emit_add_to_local (mb, 0, msize);
1849 mono_mb_emit_add_to_local (mb, 1, msize);
1853 if (klass != mono_defaults.safehandle_class) {
1854 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1855 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1856 mono_type_full_name (&klass->byval_arg));
1857 mono_mb_emit_exception_marshal_directive (mb, msg);
1862 for (i = 0; i < info->num_fields; i++) {
1863 MonoMarshalNative ntype;
1864 MonoMarshalConv conv;
1865 MonoType *ftype = info->fields [i].field->type;
1868 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1870 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1873 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1876 msize = klass->instance_size - info->fields [i].field->offset;
1877 usize = info->native_size - info->fields [i].offset;
1879 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1880 usize = info->fields [i + 1].offset - info->fields [i].offset;
1883 if (klass != mono_defaults.safehandle_class){
1885 * FIXME: Should really check for usize==0 and msize>0, but we apply
1886 * the layout to the managed structure as well.
1889 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1890 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1891 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1892 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1893 "reference field at the same offset as another field.",
1894 mono_type_full_name (&klass->byval_arg));
1899 case MONO_MARSHAL_CONV_NONE: {
1902 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1903 ftype->type == MONO_TYPE_U) {
1904 mono_mb_emit_ldloc (mb, 1);
1905 mono_mb_emit_ldloc (mb, 0);
1906 mono_mb_emit_byte (mb, CEE_LDIND_I);
1907 mono_mb_emit_byte (mb, CEE_STIND_I);
1918 case MONO_TYPE_BOOLEAN:
1921 case MONO_TYPE_CHAR:
1927 mono_mb_emit_ldloc (mb, 1);
1928 mono_mb_emit_ldloc (mb, 0);
1929 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1931 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1932 mono_mb_emit_byte (mb, CEE_STIND_I2);
1934 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1935 mono_mb_emit_byte (mb, CEE_STIND_I1);
1938 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1939 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1942 case MONO_TYPE_VALUETYPE: {
1943 int src_var, dst_var;
1945 if (ftype->data.klass->enumtype) {
1946 ftype = mono_class_enum_basetype (ftype->data.klass);
1950 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1951 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1953 /* save the old src pointer */
1954 mono_mb_emit_ldloc (mb, 0);
1955 mono_mb_emit_stloc (mb, src_var);
1956 /* save the old dst pointer */
1957 mono_mb_emit_ldloc (mb, 1);
1958 mono_mb_emit_stloc (mb, dst_var);
1960 emit_struct_conv (mb, ftype->data.klass, to_object);
1962 /* restore the old src pointer */
1963 mono_mb_emit_ldloc (mb, src_var);
1964 mono_mb_emit_stloc (mb, 0);
1965 /* restore the old dst pointer */
1966 mono_mb_emit_ldloc (mb, dst_var);
1967 mono_mb_emit_stloc (mb, 1);
1970 case MONO_TYPE_OBJECT: {
1971 mono_init_com_types ();
1973 static MonoMethod *variant_clear = NULL;
1974 static MonoMethod *get_object_for_native_variant = NULL;
1977 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1978 if (!get_object_for_native_variant)
1979 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1980 mono_mb_emit_ldloc (mb, 1);
1981 mono_mb_emit_ldloc (mb, 0);
1982 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1983 mono_mb_emit_byte (mb, CEE_STIND_REF);
1985 mono_mb_emit_ldloc (mb, 0);
1986 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1989 static MonoMethod *get_native_variant_for_object = NULL;
1991 if (!get_native_variant_for_object)
1992 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1994 mono_mb_emit_ldloc (mb, 0);
1995 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1996 mono_mb_emit_ldloc (mb, 1);
1997 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2003 g_warning ("marshaling type %02x not implemented", ftype->type);
2004 g_assert_not_reached ();
2009 int src_var, dst_var;
2011 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2012 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2014 /* save the old src pointer */
2015 mono_mb_emit_ldloc (mb, 0);
2016 mono_mb_emit_stloc (mb, src_var);
2017 /* save the old dst pointer */
2018 mono_mb_emit_ldloc (mb, 1);
2019 mono_mb_emit_stloc (mb, dst_var);
2022 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2024 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2026 /* restore the old src pointer */
2027 mono_mb_emit_ldloc (mb, src_var);
2028 mono_mb_emit_stloc (mb, 0);
2029 /* restore the old dst pointer */
2030 mono_mb_emit_ldloc (mb, dst_var);
2031 mono_mb_emit_stloc (mb, 1);
2036 mono_mb_emit_add_to_local (mb, 0, usize);
2037 mono_mb_emit_add_to_local (mb, 1, msize);
2039 mono_mb_emit_add_to_local (mb, 0, msize);
2040 mono_mb_emit_add_to_local (mb, 1, usize);
2046 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2048 emit_struct_conv_full (mb, klass, to_object, -1);
2052 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2054 /* Call DestroyStructure */
2055 /* FIXME: Only do this if needed */
2056 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2057 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2058 mono_mb_emit_ldloc (mb, struct_var);
2059 mono_mb_emit_icall (mb, mono_struct_delete_old);
2063 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2067 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2068 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2069 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2071 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2072 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2074 mono_mb_emit_icall (mb, checkpoint_func);
2076 mono_mb_patch_branch (mb, pos_noabort);
2080 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2082 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2085 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2089 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2091 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2095 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2097 emit_thread_interrupt_checkpoint (mb);
2100 static MonoAsyncResult *
2101 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2103 MonoMethodMessage *msg;
2104 MonoDelegate *async_callback;
2105 MonoMulticastDelegate *mcast_delegate;
2109 MonoMethod *method = NULL, *method2 = NULL;
2111 g_assert (delegate);
2112 mcast_delegate = (MonoMulticastDelegate *) delegate;
2113 if (mcast_delegate->prev != NULL)
2114 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2116 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2118 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2119 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2121 /* If the target is a proxy, make a direct call. Is proxy's work
2122 // to make the call asynchronous.
2124 MonoAsyncResult *ares;
2126 MonoArray *out_args;
2127 method = delegate->method;
2129 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2130 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2131 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2132 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2133 MONO_OBJECT_SETREF (msg, async_result, ares);
2134 msg->call_type = CallType_BeginInvoke;
2137 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2139 mono_raise_exception ((MonoException *) exc);
2144 klass = delegate->object.vtable->klass;
2146 method = mono_get_delegate_invoke (klass);
2147 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2150 g_assert (method != NULL);
2152 im = mono_get_delegate_invoke (method->klass);
2153 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2155 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2159 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2161 int i, params_var, tmp_var;
2163 /* allocate local (pointer) *params[] */
2164 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2165 /* allocate local (pointer) tmp */
2166 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2168 /* alloate space on stack to store an array of pointers to the arguments */
2169 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2170 mono_mb_emit_byte (mb, CEE_PREFIX1);
2171 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2172 mono_mb_emit_stloc (mb, params_var);
2175 mono_mb_emit_ldloc (mb, params_var);
2176 mono_mb_emit_stloc (mb, tmp_var);
2178 if (save_this && sig->hasthis) {
2179 mono_mb_emit_ldloc (mb, tmp_var);
2180 mono_mb_emit_ldarg_addr (mb, 0);
2181 mono_mb_emit_byte (mb, CEE_STIND_I);
2182 /* tmp = tmp + sizeof (gpointer) */
2183 if (sig->param_count)
2184 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2188 for (i = 0; i < sig->param_count; i++) {
2189 mono_mb_emit_ldloc (mb, tmp_var);
2190 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2191 mono_mb_emit_byte (mb, CEE_STIND_I);
2192 /* tmp = tmp + sizeof (gpointer) */
2193 if (i < (sig->param_count - 1))
2194 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2201 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2205 GString *res = g_string_new ("");
2208 g_string_append (res, prefix);
2209 g_string_append_c (res, '_');
2212 mono_type_get_desc (res, sig->ret, FALSE);
2215 g_string_append (res, "__this__");
2217 for (i = 0; i < sig->param_count; ++i) {
2218 g_string_append_c (res, '_');
2219 mono_type_get_desc (res, sig->params [i], FALSE);
2222 g_string_free (res, FALSE);
2227 * mono_marshal_get_string_encoding:
2229 * Return the string encoding which should be used for a given parameter.
2231 static MonoMarshalNative
2232 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2234 /* First try the parameter marshal info */
2236 if (spec->native == MONO_NATIVE_LPARRAY) {
2237 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2238 return spec->data.array_data.elem_type;
2241 return spec->native;
2245 return MONO_NATIVE_LPSTR;
2247 /* Then try the method level marshal info */
2248 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2249 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2250 return MONO_NATIVE_LPSTR;
2251 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2252 return MONO_NATIVE_LPWSTR;
2253 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2255 return MONO_NATIVE_LPWSTR;
2257 return MONO_NATIVE_LPSTR;
2260 return MONO_NATIVE_LPSTR;
2264 static MonoMarshalConv
2265 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2267 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2270 case MONO_NATIVE_LPWSTR:
2271 return MONO_MARSHAL_CONV_STR_LPWSTR;
2272 case MONO_NATIVE_LPSTR:
2273 case MONO_NATIVE_VBBYREFSTR:
2274 return MONO_MARSHAL_CONV_STR_LPSTR;
2275 case MONO_NATIVE_LPTSTR:
2276 return MONO_MARSHAL_CONV_STR_LPTSTR;
2277 case MONO_NATIVE_BSTR:
2278 return MONO_MARSHAL_CONV_STR_BSTR;
2284 static MonoMarshalConv
2285 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2287 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2290 case MONO_NATIVE_LPWSTR:
2291 return MONO_MARSHAL_CONV_SB_LPWSTR;
2293 case MONO_NATIVE_LPSTR:
2294 return MONO_MARSHAL_CONV_SB_LPSTR;
2296 case MONO_NATIVE_LPTSTR:
2297 return MONO_MARSHAL_CONV_SB_LPTSTR;
2304 static MonoMarshalConv
2305 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2307 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2312 case MONO_NATIVE_LPWSTR:
2314 return MONO_MARSHAL_CONV_LPWSTR_STR;
2315 case MONO_NATIVE_LPSTR:
2316 case MONO_NATIVE_VBBYREFSTR:
2317 return MONO_MARSHAL_CONV_LPSTR_STR;
2318 case MONO_NATIVE_LPTSTR:
2319 return MONO_MARSHAL_CONV_LPTSTR_STR;
2320 case MONO_NATIVE_BSTR:
2321 return MONO_MARSHAL_CONV_BSTR_STR;
2327 static MonoMarshalConv
2328 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2330 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2335 case MONO_NATIVE_LPWSTR:
2337 * mono_string_builder_to_utf16 does not allocate a
2338 * new buffer, so no need to free it.
2341 return MONO_MARSHAL_CONV_LPWSTR_SB;
2342 case MONO_NATIVE_LPSTR:
2343 return MONO_MARSHAL_CONV_LPSTR_SB;
2345 case MONO_NATIVE_LPTSTR:
2346 return MONO_MARSHAL_CONV_LPTSTR_SB;
2354 * Return whenever a field of a native structure or an array member needs to
2358 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2360 MonoMarshalNative encoding;
2361 MonoMarshalConv conv;
2364 case MONO_TYPE_VALUETYPE:
2365 /* FIXME: Optimize this */
2367 case MONO_TYPE_OBJECT:
2368 case MONO_TYPE_CLASS:
2369 if (t->data.klass == mono_defaults.stringbuilder_class) {
2371 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2375 case MONO_TYPE_STRING:
2376 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2377 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2384 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2387 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2390 mono_marshal_lock ();
2393 g_hash_table_new (hash_func, equal_func);
2394 mono_memory_barrier ();
2397 mono_marshal_unlock ();
2403 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2406 mono_marshal_lock ();
2409 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2410 mono_memory_barrier ();
2413 mono_marshal_unlock ();
2419 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2421 return get_cache (var, hash_func, equal_func);
2425 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2429 mono_marshal_lock ();
2430 res = g_hash_table_lookup (cache, key);
2431 mono_marshal_unlock ();
2435 /* Create the method from the builder and place it in the cache */
2437 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2438 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2443 mono_marshal_lock ();
2444 res = g_hash_table_lookup (cache, key);
2445 mono_marshal_unlock ();
2448 newm = mono_mb_create_method (mb, sig, max_stack);
2449 mono_marshal_lock ();
2450 res = g_hash_table_lookup (cache, key);
2453 g_hash_table_insert (cache, key, res);
2454 mono_marshal_set_wrapper_info (res, key);
2455 mono_marshal_unlock ();
2457 mono_marshal_unlock ();
2458 mono_free_method (newm);
2466 static inline MonoMethod*
2467 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2469 MonoMethod *res = NULL;
2470 MonoRemotingMethods *wrps;
2472 mono_marshal_lock ();
2473 if (method->klass->image->remoting_invoke_cache)
2474 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2479 switch (wrapper_type) {
2480 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2481 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2482 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2483 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2487 /* it is important to do the unlock after the load from wrps, since in
2488 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2489 * to take the loader lock and some other thread may set the fields.
2491 mono_marshal_unlock ();
2495 /* Create the method from the builder and place it in the cache */
2496 static inline MonoMethod*
2497 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2498 MonoMethodSignature *sig, int max_stack)
2500 MonoMethod **res = NULL;
2501 MonoRemotingMethods *wrps;
2502 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2504 mono_marshal_lock ();
2505 wrps = g_hash_table_lookup (cache, key);
2507 wrps = g_new0 (MonoRemotingMethods, 1);
2508 g_hash_table_insert (cache, key, wrps);
2511 switch (mb->method->wrapper_type) {
2512 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2513 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2514 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2515 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2516 default: g_assert_not_reached (); break;
2518 mono_marshal_unlock ();
2522 newm = mono_mb_create_method (mb, sig, max_stack);
2524 mono_marshal_lock ();
2527 mono_marshal_set_wrapper_info (*res, key);
2528 mono_marshal_unlock ();
2530 mono_marshal_unlock ();
2531 mono_free_method (newm);
2539 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2542 int wrapper_type = wrapper->wrapper_type;
2545 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2548 switch (wrapper_type) {
2549 case MONO_WRAPPER_REMOTING_INVOKE:
2550 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2551 case MONO_WRAPPER_XDOMAIN_INVOKE:
2552 case MONO_WRAPPER_SYNCHRONIZED:
2553 res = mono_marshal_get_wrapper_info (wrapper);
2557 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2558 info = mono_marshal_get_wrapper_info (wrapper);
2559 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT))
2560 return info->d.managed_to_native.method;
2563 case MONO_WRAPPER_RUNTIME_INVOKE:
2564 info = mono_marshal_get_wrapper_info (wrapper);
2565 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2566 return info->d.runtime_invoke.method;
2575 * mono_marshal_get_wrapper_info:
2577 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2578 * returned depends on the wrapper type. It is usually a method, a class, or a
2579 * WrapperInfo structure.
2582 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2584 g_assert (wrapper->wrapper_type);
2586 return mono_method_get_wrapper_data (wrapper, 1);
2590 * mono_marshal_set_wrapper_info:
2592 * Store an arbitrary pointer inside the wrapper which is retrievable by
2593 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2594 * wrapper (method->wrapper_type).
2597 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2601 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2604 datav = ((MonoMethodWrapper *)method)->method_data;
2609 mono_wrapper_info_create (MonoMethod *wrapper, WrapperSubtype subtype)
2613 info = mono_image_alloc0 (wrapper->klass->image, sizeof (WrapperInfo));
2614 info->subtype = subtype;
2619 * get_wrapper_target_class:
2621 * Return the class where a wrapper method should be placed.
2624 get_wrapper_target_class (MonoImage *image)
2630 * - can't put all wrappers into an mscorlib class, because they reference
2631 * metadata (signature) so they should be put into the same image as the
2632 * method they wrap, so they are unloaded together.
2633 * - putting them into a class with a type initalizer could cause the
2634 * initializer to be executed which can be a problem if the wrappers are
2636 * - putting them into an inflated class can cause problems if the the
2637 * class is deleted because it references an image which is unloaded.
2638 * To avoid these problems, we put the wrappers into the <Module> class of
2642 klass = ((MonoDynamicImage*)image)->wrappers_type;
2644 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2651 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2653 MonoMethodSignature *sig;
2654 MonoMethodBuilder *mb;
2660 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2661 !strcmp (method->name, "BeginInvoke"));
2663 sig = mono_signature_no_pinvoke (method);
2665 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2666 (GHashFunc)mono_signature_hash,
2667 (GCompareFunc)mono_metadata_signature_equal);
2668 if ((res = mono_marshal_find_in_cache (cache, sig)))
2671 g_assert (sig->hasthis);
2673 name = mono_signature_to_name (sig, "begin_invoke");
2674 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2677 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2679 mono_mb_emit_ldarg (mb, 0);
2680 mono_mb_emit_ldloc (mb, params_var);
2681 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2682 mono_mb_emit_byte (mb, CEE_RET);
2684 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2690 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2692 MonoDomain *domain = mono_domain_get ();
2693 MonoAsyncResult *ares;
2694 MonoMethod *method = NULL;
2695 MonoMethodSignature *sig;
2696 MonoMethodMessage *msg;
2697 MonoObject *res, *exc;
2698 MonoArray *out_args;
2701 g_assert (delegate);
2703 if (!delegate->method_info) {
2704 g_assert (delegate->method);
2705 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2708 if (!delegate->method_info || !delegate->method_info->method)
2709 g_assert_not_reached ();
2711 klass = delegate->object.vtable->klass;
2713 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2714 g_assert (method != NULL);
2716 sig = mono_signature_no_pinvoke (method);
2718 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2720 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2722 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."));
2726 if (ares->async_delegate != (MonoObject*)delegate) {
2727 mono_raise_exception (mono_get_exception_invalid_operation (
2728 "The IAsyncResult object provided does not match this delegate."));
2732 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2733 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2734 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2735 mono_message_init (domain, msg, delegate->method_info, NULL);
2736 msg->call_type = CallType_EndInvoke;
2737 MONO_OBJECT_SETREF (msg, async_result, ares);
2738 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2740 res = mono_thread_pool_finish (ares, &out_args, &exc);
2744 if (((MonoException*)exc)->stack_trace) {
2745 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2747 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2749 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2752 mono_raise_exception ((MonoException*)exc);
2755 mono_method_return_message_restore (method, params, out_args);
2760 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2762 MonoType *t = mono_type_get_underlying_type (return_type);
2764 if (return_type->byref)
2765 return_type = &mono_defaults.int_class->byval_arg;
2768 case MONO_TYPE_VOID:
2769 g_assert_not_reached ();
2772 case MONO_TYPE_STRING:
2773 case MONO_TYPE_CLASS:
2774 case MONO_TYPE_OBJECT:
2775 case MONO_TYPE_ARRAY:
2776 case MONO_TYPE_SZARRAY:
2780 case MONO_TYPE_BOOLEAN:
2783 case MONO_TYPE_CHAR:
2793 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2794 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2796 case MONO_TYPE_GENERICINST:
2797 if (!mono_type_generic_inst_is_valuetype (t))
2800 case MONO_TYPE_VALUETYPE: {
2801 MonoClass *klass = mono_class_from_mono_type (return_type);
2802 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2803 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2807 g_warning ("type 0x%x not handled", return_type->type);
2808 g_assert_not_reached ();
2811 mono_mb_emit_byte (mb, CEE_RET);
2815 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2817 MonoMethodSignature *sig;
2818 MonoMethodBuilder *mb;
2824 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2825 !strcmp (method->name, "EndInvoke"));
2827 sig = mono_signature_no_pinvoke (method);
2829 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2830 (GHashFunc)mono_signature_hash,
2831 (GCompareFunc)mono_metadata_signature_equal);
2832 if ((res = mono_marshal_find_in_cache (cache, sig)))
2835 g_assert (sig->hasthis);
2837 name = mono_signature_to_name (sig, "end_invoke");
2838 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2841 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2843 mono_mb_emit_ldarg (mb, 0);
2844 mono_mb_emit_ldloc (mb, params_var);
2845 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2847 if (sig->ret->type == MONO_TYPE_VOID) {
2848 mono_mb_emit_byte (mb, CEE_POP);
2849 mono_mb_emit_byte (mb, CEE_RET);
2851 mono_mb_emit_restore_result (mb, sig->ret);
2853 res = mono_mb_create_and_cache (cache, sig,
2854 mb, sig, sig->param_count + 16);
2861 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2863 MonoMethodMessage *msg;
2864 MonoTransparentProxy *this;
2865 MonoObject *res, *exc;
2866 MonoArray *out_args;
2868 this = *((MonoTransparentProxy **)params [0]);
2871 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2873 /* skip the this pointer */
2876 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2879 MonoMethodSignature *sig = mono_method_signature (method);
2880 int count = sig->param_count;
2881 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2883 for (i=0; i<count; i++) {
2884 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2885 if (class->valuetype) {
2886 if (sig->params [i]->byref) {
2887 mparams[i] = *((gpointer *)params [i]);
2889 /* runtime_invoke expects a boxed instance */
2890 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2891 mparams[i] = mono_nullable_box (params [i], class);
2893 mparams[i] = params [i];
2896 mparams[i] = *((gpointer**)params [i]);
2900 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2903 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2905 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2908 mono_raise_exception ((MonoException *)exc);
2910 mono_method_return_message_restore (method, params, out_args);
2916 mono_marshal_get_remoting_invoke (MonoMethod *method)
2918 MonoMethodSignature *sig;
2919 MonoMethodBuilder *mb;
2925 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2928 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2929 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2930 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2931 g_assert (vtable); /*FIXME do proper error handling*/
2933 if (!vtable->remote) {
2935 return mono_cominterop_get_invoke (method);
2937 g_assert_not_reached ();
2942 sig = mono_signature_no_pinvoke (method);
2944 /* we cant remote methods without this pointer */
2948 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2951 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2952 mb->method->save_lmf = 1;
2954 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2956 mono_mb_emit_ptr (mb, method);
2957 mono_mb_emit_ldloc (mb, params_var);
2958 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2959 emit_thread_interrupt_checkpoint (mb);
2961 if (sig->ret->type == MONO_TYPE_VOID) {
2962 mono_mb_emit_byte (mb, CEE_POP);
2963 mono_mb_emit_byte (mb, CEE_RET);
2965 mono_mb_emit_restore_result (mb, sig->ret);
2968 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2974 /* mono_get_xdomain_marshal_type()
2975 * Returns the kind of marshalling that a type needs for cross domain calls.
2977 static MonoXDomainMarshalType
2978 mono_get_xdomain_marshal_type (MonoType *t)
2981 case MONO_TYPE_VOID:
2982 g_assert_not_reached ();
2986 case MONO_TYPE_BOOLEAN:
2989 case MONO_TYPE_CHAR:
2996 return MONO_MARSHAL_NONE;
2997 case MONO_TYPE_STRING:
2998 return MONO_MARSHAL_COPY;
2999 case MONO_TYPE_ARRAY:
3000 case MONO_TYPE_SZARRAY: {
3001 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3002 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3003 return MONO_MARSHAL_COPY;
3008 return MONO_MARSHAL_SERIALIZE;
3012 /* mono_marshal_xdomain_copy_value
3013 * Makes a copy of "val" suitable for the current domain.
3016 mono_marshal_xdomain_copy_value (MonoObject *val)
3019 if (val == NULL) return NULL;
3021 domain = mono_domain_get ();
3023 switch (mono_object_class (val)->byval_arg.type) {
3024 case MONO_TYPE_VOID:
3025 g_assert_not_reached ();
3029 case MONO_TYPE_BOOLEAN:
3032 case MONO_TYPE_CHAR:
3038 case MONO_TYPE_R8: {
3039 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3041 case MONO_TYPE_STRING: {
3042 MonoString *str = (MonoString *) val;
3043 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3045 case MONO_TYPE_ARRAY:
3046 case MONO_TYPE_SZARRAY: {
3048 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3049 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3050 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3051 if (mt == MONO_MARSHAL_COPY) {
3052 int i, len = mono_array_length (acopy);
3053 for (i = 0; i < len; i++) {
3054 MonoObject *item = mono_array_get (acopy, gpointer, i);
3055 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3058 return (MonoObject *) acopy;
3062 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3063 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3064 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3065 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3066 newsb->length = oldsb->length;
3067 newsb->max_capacity = (gint32)0x7fffffff;
3068 return (MonoObject *) newsb;
3073 /* mono_marshal_xdomain_copy_out_value()
3074 * Copies the contents of the src instance into the dst instance. src and dst
3075 * must have the same type, and if they are arrays, the same size.
3078 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3080 if (src == NULL || dst == NULL) return;
3082 g_assert (mono_object_class (src) == mono_object_class (dst));
3084 switch (mono_object_class (src)->byval_arg.type) {
3085 case MONO_TYPE_ARRAY:
3086 case MONO_TYPE_SZARRAY: {
3087 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3088 if (mt == MONO_MARSHAL_SERIALIZE) return;
3089 if (mt == MONO_MARSHAL_COPY) {
3090 int i, len = mono_array_length ((MonoArray *)dst);
3091 for (i = 0; i < len; i++) {
3092 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3093 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3096 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3102 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3103 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3104 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3106 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)));
3107 dst_sb->cached_str = NULL;
3108 dst_sb->length = src_sb->length;
3113 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3115 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3116 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3120 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3122 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3125 /* mono_marshal_supports_fast_xdomain()
3126 * Returns TRUE if the method can use the fast xdomain wrapper.
3129 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3131 return !method->klass->contextbound &&
3132 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3136 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3138 MonoDomain *current_domain = mono_domain_get ();
3139 MonoDomain *domain = mono_domain_get_by_id (id);
3141 if (!domain || !mono_domain_set (domain, FALSE))
3142 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3145 mono_thread_push_appdomain_ref (domain);
3147 mono_thread_pop_appdomain_ref ();
3149 return current_domain->domain_id;
3153 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3155 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3158 /* mono_marshal_emit_load_domain_method ()
3159 * Loads into the stack a pointer to the code of the provided method for
3160 * the current domain.
3163 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3165 /* We need a pointer to the method for the running domain (not the domain
3166 * that compiles the method).
3168 mono_mb_emit_ptr (mb, method);
3169 mono_mb_emit_icall (mb, mono_compile_method);
3172 /* mono_marshal_check_domain_image ()
3173 * Returns TRUE if the image is loaded in the specified
3174 * application domain.
3177 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3182 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3186 mono_domain_assemblies_lock (domain);
3187 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3189 if (ass->image == image)
3192 mono_domain_assemblies_unlock (domain);
3197 /* mono_marshal_get_xappdomain_dispatch ()
3198 * Generates a method that dispatches a method call from another domain into
3199 * the current domain.
3202 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3204 MonoMethodSignature *sig, *csig;
3205 MonoMethodBuilder *mb;
3207 int i, j, param_index, copy_locals_base;
3208 MonoClass *ret_class = NULL;
3209 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3210 MonoExceptionClause *main_clause;
3212 gboolean copy_return;
3214 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3217 sig = mono_method_signature (method);
3218 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3221 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3222 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3223 csig->params [j++] = &byte_array_class->this_arg;
3224 csig->params [j++] = &byte_array_class->this_arg;
3225 for (i = 0; i < sig->param_count; i++) {
3226 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3227 csig->params [j++] = sig->params [i];
3230 csig->ret = sig->ret;
3232 csig->ret = &mono_defaults.void_class->byval_arg;
3234 csig->hasthis = FALSE;
3236 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3237 mb->method->save_lmf = 1;
3241 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3242 if (complex_count > 0)
3243 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3244 if (sig->ret->type != MONO_TYPE_VOID) {
3245 loc_return = mono_mb_add_local (mb, sig->ret);
3246 ret_class = mono_class_from_mono_type (sig->ret);
3251 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3252 main_clause->try_offset = mono_mb_get_label (mb);
3254 /* Clean the call context */
3256 mono_mb_emit_byte (mb, CEE_LDNULL);
3257 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3258 mono_mb_emit_byte (mb, CEE_POP);
3260 /* Deserialize call data */
3262 mono_mb_emit_ldarg (mb, 1);
3263 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3264 mono_mb_emit_byte (mb, CEE_DUP);
3265 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3267 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3268 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3270 if (complex_count > 0)
3271 mono_mb_emit_stloc (mb, loc_array);
3273 mono_mb_emit_byte (mb, CEE_POP);
3275 mono_mb_patch_short_branch (mb, pos);
3277 /* Get the target object */
3279 mono_mb_emit_ldarg (mb, 0);
3280 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3282 /* Load the arguments */
3284 copy_locals_base = mb->locals;
3285 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3287 for (i = 0; i < sig->param_count; i++) {
3288 MonoType *pt = sig->params [i];
3289 MonoClass *pclass = mono_class_from_mono_type (pt);
3290 switch (marshal_types [i]) {
3291 case MONO_MARSHAL_SERIALIZE: {
3292 /* take the value from the serialized array */
3293 mono_mb_emit_ldloc (mb, loc_array);
3294 mono_mb_emit_icon (mb, j++);
3296 if (pclass->valuetype) {
3297 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3298 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3300 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3303 if (pclass->valuetype) {
3304 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3305 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3306 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3308 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3309 if (pclass != mono_defaults.object_class) {
3310 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3316 case MONO_MARSHAL_COPY_OUT: {
3317 /* Keep a local copy of the value since we need to copy it back after the call */
3318 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3319 mono_mb_emit_ldarg (mb, param_index++);
3320 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3321 mono_mb_emit_byte (mb, CEE_DUP);
3322 mono_mb_emit_stloc (mb, copy_local);
3325 case MONO_MARSHAL_COPY: {
3326 mono_mb_emit_ldarg (mb, param_index);
3328 mono_mb_emit_byte (mb, CEE_DUP);
3329 mono_mb_emit_byte (mb, CEE_DUP);
3330 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3331 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3332 mono_mb_emit_byte (mb, CEE_STIND_REF);
3334 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3339 case MONO_MARSHAL_NONE:
3340 mono_mb_emit_ldarg (mb, param_index++);
3345 /* Make the call to the real object */
3347 emit_thread_force_interrupt_checkpoint (mb);
3349 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3351 if (sig->ret->type != MONO_TYPE_VOID)
3352 mono_mb_emit_stloc (mb, loc_return);
3354 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3358 for (i = 0; i < sig->param_count; i++) {
3359 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3360 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3361 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3362 mono_mb_emit_ldarg (mb, param_index);
3363 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3368 /* Serialize the return values */
3370 if (complex_out_count > 0) {
3371 /* Reset parameters in the array that don't need to be serialized back */
3373 for (i = 0; i < sig->param_count; i++) {
3374 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3375 if (!sig->params [i]->byref) {
3376 mono_mb_emit_ldloc (mb, loc_array);
3377 mono_mb_emit_icon (mb, j);
3378 mono_mb_emit_byte (mb, CEE_LDNULL);
3379 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3384 /* Add the return value to the array */
3386 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3387 mono_mb_emit_ldloc (mb, loc_array);
3388 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3389 mono_mb_emit_ldloc (mb, loc_return);
3391 g_assert (ret_class); /*FIXME properly fail here*/
3392 if (ret_class->valuetype) {
3393 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3395 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3400 mono_mb_emit_ldarg (mb, 1);
3401 mono_mb_emit_ldloc (mb, loc_array);
3402 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3403 mono_mb_emit_byte (mb, CEE_STIND_REF);
3404 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3405 mono_mb_emit_ldarg (mb, 1);
3406 mono_mb_emit_ldloc (mb, loc_return);
3407 if (ret_class->valuetype) {
3408 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3410 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3411 mono_mb_emit_byte (mb, CEE_STIND_REF);
3413 mono_mb_emit_ldarg (mb, 1);
3414 mono_mb_emit_byte (mb, CEE_LDNULL);
3415 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3416 mono_mb_emit_byte (mb, CEE_STIND_REF);
3419 mono_mb_emit_ldarg (mb, 2);
3420 mono_mb_emit_byte (mb, CEE_LDNULL);
3421 mono_mb_emit_byte (mb, CEE_STIND_REF);
3422 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3424 /* Main exception catch */
3425 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3426 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3427 main_clause->data.catch_class = mono_defaults.object_class;
3430 main_clause->handler_offset = mono_mb_get_label (mb);
3431 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3432 mono_mb_emit_stloc (mb, loc_serialized_exc);
3433 mono_mb_emit_ldarg (mb, 2);
3434 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3435 mono_mb_emit_byte (mb, CEE_STIND_REF);
3436 mono_mb_emit_branch (mb, CEE_LEAVE);
3437 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3440 mono_mb_patch_branch (mb, pos_leave);
3443 mono_mb_emit_ldloc (mb, loc_return);
3445 mono_mb_emit_byte (mb, CEE_RET);
3447 mono_mb_set_clauses (mb, 1, main_clause);
3449 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3455 /* mono_marshal_get_xappdomain_invoke ()
3456 * Generates a fast remoting wrapper for cross app domain calls.
3459 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3461 MonoMethodSignature *sig;
3462 MonoMethodBuilder *mb;
3464 int i, j, complex_count, complex_out_count, copy_locals_base;
3466 MonoClass *ret_class = NULL;
3467 MonoMethod *xdomain_method;
3468 int ret_marshal_type = MONO_MARSHAL_NONE;
3469 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3470 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3471 int pos, pos_dispatch, pos_noex;
3472 gboolean copy_return = FALSE;
3476 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3479 /* we cant remote methods without this pointer */
3480 if (!mono_method_signature (method)->hasthis)
3483 if (!mono_marshal_supports_fast_xdomain (method))
3484 return mono_marshal_get_remoting_invoke (method);
3486 mono_remoting_marshal_init ();
3488 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3491 sig = mono_signature_no_pinvoke (method);
3493 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3494 mb->method->save_lmf = 1;
3496 /* Count the number of parameters that need to be serialized */
3498 marshal_types = alloca (sizeof (int) * sig->param_count);
3499 complex_count = complex_out_count = 0;
3500 for (i = 0; i < sig->param_count; i++) {
3501 MonoType *ptype = sig->params[i];
3502 int mt = mono_get_xdomain_marshal_type (ptype);
3504 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3505 * the copy will be made by reusing the original object instance
3507 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3508 mt = MONO_MARSHAL_COPY_OUT;
3509 else if (mt == MONO_MARSHAL_SERIALIZE) {
3511 if (ptype->byref) complex_out_count++;
3513 marshal_types [i] = mt;
3516 if (sig->ret->type != MONO_TYPE_VOID) {
3517 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3518 ret_class = mono_class_from_mono_type (sig->ret);
3519 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3524 if (complex_count > 0)
3525 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3526 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3527 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3529 loc_return = mono_mb_add_local (mb, sig->ret);
3530 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3531 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3532 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3533 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3535 /* Save thread domain data */
3537 mono_mb_emit_icall (mb, mono_context_get);
3538 mono_mb_emit_byte (mb, CEE_DUP);
3539 mono_mb_emit_stloc (mb, loc_context);
3541 /* If the thread is not running in the default context, it needs to go
3542 * through the whole remoting sink, since the context is going to change
3544 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3545 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3547 /* Another case in which the fast path can't be used: when the target domain
3548 * has a different image for the same assembly.
3551 /* Get the target domain id */
3553 mono_mb_emit_ldarg (mb, 0);
3554 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3555 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3556 mono_mb_emit_byte (mb, CEE_DUP);
3557 mono_mb_emit_stloc (mb, loc_real_proxy);
3559 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3560 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3561 mono_mb_emit_stloc (mb, loc_domainid);
3563 /* Check if the target domain has the same image for the required assembly */
3565 mono_mb_emit_ldloc (mb, loc_domainid);
3566 mono_mb_emit_ptr (mb, method->klass->image);
3567 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3568 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3570 /* Use the whole remoting sink to dispatch this message */
3572 mono_mb_patch_short_branch (mb, pos);
3574 mono_mb_emit_ldarg (mb, 0);
3575 for (i = 0; i < sig->param_count; i++)
3576 mono_mb_emit_ldarg (mb, i + 1);
3578 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3579 mono_mb_emit_byte (mb, CEE_RET);
3580 mono_mb_patch_short_branch (mb, pos_dispatch);
3582 /* Create the array that will hold the parameters to be serialized */
3584 if (complex_count > 0) {
3585 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 */
3586 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3589 for (i = 0; i < sig->param_count; i++) {
3591 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3592 pclass = mono_class_from_mono_type (sig->params[i]);
3593 mono_mb_emit_byte (mb, CEE_DUP);
3594 mono_mb_emit_icon (mb, j);
3595 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3596 if (sig->params[i]->byref) {
3597 if (pclass->valuetype)
3598 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3600 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3602 if (pclass->valuetype)
3603 mono_mb_emit_op (mb, CEE_BOX, pclass);
3604 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3607 mono_mb_emit_stloc (mb, loc_array);
3609 /* Serialize parameters */
3611 mono_mb_emit_ldloc (mb, loc_array);
3612 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3613 mono_mb_emit_stloc (mb, loc_serialized_data);
3615 mono_mb_emit_byte (mb, CEE_LDNULL);
3616 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3617 mono_mb_emit_stloc (mb, loc_serialized_data);
3622 mono_mb_emit_ldloc (mb, loc_domainid);
3623 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3624 mono_marshal_emit_switch_domain (mb);
3625 mono_mb_emit_stloc (mb, loc_old_domainid);
3627 /* Load the arguments */
3629 mono_mb_emit_ldloc (mb, loc_real_proxy);
3630 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3631 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3633 copy_locals_base = mb->locals;
3634 for (i = 0; i < sig->param_count; i++) {
3635 switch (marshal_types [i]) {
3636 case MONO_MARSHAL_SERIALIZE:
3638 case MONO_MARSHAL_COPY: {
3639 mono_mb_emit_ldarg (mb, i+1);
3640 if (sig->params [i]->byref) {
3641 /* make a local copy of the byref parameter. The real parameter
3642 * will be updated after the xdomain call
3644 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3645 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3646 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3647 mono_mb_emit_stloc (mb, copy_local);
3648 mono_mb_emit_ldloc_addr (mb, copy_local);
3652 case MONO_MARSHAL_COPY_OUT:
3653 case MONO_MARSHAL_NONE:
3654 mono_mb_emit_ldarg (mb, i+1);
3659 /* Make the call to the invoke wrapper in the target domain */
3661 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3662 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3663 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3666 mono_mb_emit_stloc (mb, loc_return);
3670 mono_mb_emit_ldloc (mb, loc_old_domainid);
3671 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3672 mono_marshal_emit_switch_domain (mb);
3673 mono_mb_emit_byte (mb, CEE_POP);
3675 /* Restore thread domain data */
3677 mono_mb_emit_ldloc (mb, loc_context);
3678 mono_mb_emit_icall (mb, mono_context_set);
3680 /* if (loc_serialized_exc != null) ... */
3682 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3683 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3685 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3686 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3687 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3688 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3689 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3690 mono_mb_emit_byte (mb, CEE_THROW);
3691 mono_mb_patch_short_branch (mb, pos_noex);
3693 /* copy back non-serialized output parameters */
3696 for (i = 0; i < sig->param_count; i++) {
3697 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3698 mono_mb_emit_ldarg (mb, i + 1);
3699 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3700 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3701 mono_mb_emit_byte (mb, CEE_STIND_REF);
3704 /* Deserialize out parameters */
3706 if (complex_out_count > 0) {
3707 mono_mb_emit_ldloc (mb, loc_serialized_data);
3708 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3709 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3710 mono_mb_emit_stloc (mb, loc_array);
3712 /* Copy back output parameters and return type */
3715 for (i = 0; i < sig->param_count; i++) {
3716 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3717 if (sig->params[i]->byref) {
3718 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3719 mono_mb_emit_ldarg (mb, i + 1);
3720 mono_mb_emit_ldloc (mb, loc_array);
3721 mono_mb_emit_icon (mb, j);
3722 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3723 if (pclass->valuetype) {
3724 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3725 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3726 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3728 if (pclass != mono_defaults.object_class)
3729 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3730 mono_mb_emit_byte (mb, CEE_STIND_REF);
3736 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3737 mono_mb_emit_ldloc (mb, loc_array);
3738 mono_mb_emit_icon (mb, complex_count);
3739 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3740 if (ret_class->valuetype) {
3741 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3742 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3745 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3746 mono_mb_emit_ldloc (mb, loc_serialized_data);
3747 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3748 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3749 if (ret_class->valuetype) {
3750 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3751 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3752 } else if (ret_class != mono_defaults.object_class) {
3753 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3756 mono_mb_emit_ldloc (mb, loc_serialized_data);
3757 mono_mb_emit_byte (mb, CEE_DUP);
3758 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3759 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3761 mono_mb_patch_short_branch (mb, pos);
3762 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3763 mono_mb_emit_byte (mb, CEE_POP);
3767 mono_mb_emit_ldloc (mb, loc_return);
3768 if (ret_marshal_type == MONO_MARSHAL_COPY)
3769 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3772 mono_mb_emit_byte (mb, CEE_RET);
3774 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3781 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3783 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3784 return mono_marshal_get_xappdomain_invoke (method);
3785 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3787 return mono_cominterop_get_invoke (method);
3789 g_assert_not_reached ();
3792 return mono_marshal_get_remoting_invoke (method);
3798 G_GNUC_UNUSED static gpointer
3799 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3801 if (rp->target_domain_id != -1)
3802 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3804 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3808 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3810 MonoMethodSignature *sig;
3811 MonoMethodBuilder *mb;
3812 MonoMethod *res, *native;
3813 int i, pos, pos_rem;
3817 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3820 /* we cant remote methods without this pointer */
3821 g_assert (mono_method_signature (method)->hasthis);
3823 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3826 sig = mono_signature_no_pinvoke (method);
3828 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3830 for (i = 0; i <= sig->param_count; i++)
3831 mono_mb_emit_ldarg (mb, i);
3833 mono_mb_emit_ldarg (mb, 0);
3834 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3836 if (mono_marshal_supports_fast_xdomain (method)) {
3837 mono_mb_emit_ldarg (mb, 0);
3838 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3840 /* wrapper for cross app domain calls */
3841 native = mono_marshal_get_xappdomain_invoke (method);
3842 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3843 mono_mb_emit_byte (mb, CEE_RET);
3845 mono_mb_patch_branch (mb, pos_rem);
3847 /* wrapper for normal remote calls */
3848 native = mono_marshal_get_remoting_invoke (method);
3849 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3850 mono_mb_emit_byte (mb, CEE_RET);
3853 mono_mb_patch_branch (mb, pos);
3854 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3855 mono_mb_emit_byte (mb, CEE_RET);
3857 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3865 MonoMethodSignature *sig;
3867 } SignatureMethodPair;
3870 signature_method_pair_hash (gconstpointer data)
3872 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3874 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3878 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3880 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3884 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3886 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3887 MonoMethod *method = (MonoMethod*)user_data;
3889 return pair->method == method;
3893 free_signature_method_pair (SignatureMethodPair *pair)
3899 * the returned method invokes all methods in a multicast delegate.
3902 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3904 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3906 MonoMethodBuilder *mb;
3907 MonoMethod *res, *newm;
3909 SignatureMethodPair key;
3910 SignatureMethodPair *new_key;
3911 int local_prev, local_target;
3914 MonoMethod *target_method = NULL;
3915 MonoClass *target_class = NULL;
3916 gboolean callvirt = FALSE;
3917 gboolean closed_over_null = FALSE;
3918 gboolean static_method_with_first_arg_bound = FALSE;
3921 * If the delegate target is null, and the target method is not static, a virtual
3922 * call is made to that method with the first delegate argument as this. This is
3923 * a non-documented .NET feature.
3925 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3927 target_method = del->method;
3928 if (target_method->is_inflated) {
3929 MonoType *target_type;
3931 g_assert (method->signature->hasthis);
3932 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3933 mono_method_get_context (method));
3934 target_class = mono_class_from_mono_type (target_type);
3936 target_class = del->method->klass;
3940 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3941 !strcmp (method->name, "Invoke"));
3943 invoke_sig = sig = mono_signature_no_pinvoke (method);
3946 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3948 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3949 invoke_sig = mono_method_signature (del->method);
3950 target_method = del->method;
3951 static_method_with_first_arg_bound = TRUE;
3954 if (callvirt || static_method_with_first_arg_bound) {
3955 GHashTable **cache_ptr;
3956 if (static_method_with_first_arg_bound)
3957 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3959 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3961 /* We need to cache the signature+method pair */
3962 mono_marshal_lock ();
3964 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3966 key.sig = invoke_sig;
3967 key.method = target_method;
3968 res = g_hash_table_lookup (cache, &key);
3969 mono_marshal_unlock ();
3973 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3974 (GHashFunc)mono_signature_hash,
3975 (GCompareFunc)mono_metadata_signature_equal);
3976 if ((res = mono_marshal_find_in_cache (cache, sig)))
3980 static_sig = signature_dup (method->klass->image, sig);
3981 static_sig->hasthis = 0;
3982 if (!static_method_with_first_arg_bound)
3983 invoke_sig = static_sig;
3985 name = mono_signature_to_name (sig, "invoke");
3986 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3989 /* allocate local 0 (object) */
3990 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3991 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3993 g_assert (sig->hasthis);
3997 * prev.Invoke( args .. );
3998 * return this.<target>( args .. );
4001 /* this wrapper can be used in unmanaged-managed transitions */
4002 emit_thread_interrupt_checkpoint (mb);
4004 /* get this->prev */
4005 mono_mb_emit_ldarg (mb, 0);
4006 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4007 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4008 mono_mb_emit_stloc (mb, local_prev);
4009 mono_mb_emit_ldloc (mb, local_prev);
4011 /* if prev != null */
4012 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4016 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4017 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4019 mono_mb_emit_ldloc (mb, local_prev);
4020 for (i = 0; i < sig->param_count; i++)
4021 mono_mb_emit_ldarg (mb, i + 1);
4022 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4023 if (sig->ret->type != MONO_TYPE_VOID)
4024 mono_mb_emit_byte (mb, CEE_POP);
4026 /* continued or prev == null */
4027 mono_mb_patch_branch (mb, pos0);
4029 /* get this->target */
4030 mono_mb_emit_ldarg (mb, 0);
4031 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4032 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4033 mono_mb_emit_stloc (mb, local_target);
4035 /*static methods with bound first arg can have null target and still be bound*/
4036 if (!static_method_with_first_arg_bound) {
4037 /* if target != null */
4038 mono_mb_emit_ldloc (mb, local_target);
4039 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4041 /* then call this->method_ptr nonstatic */
4044 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4046 mono_mb_emit_ldloc (mb, local_target);
4047 for (i = 0; i < sig->param_count; ++i)
4048 mono_mb_emit_ldarg (mb, i + 1);
4049 mono_mb_emit_ldarg (mb, 0);
4050 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4051 mono_mb_emit_byte (mb, CEE_LDIND_I );
4052 mono_mb_emit_op (mb, CEE_CALLI, sig);
4054 mono_mb_emit_byte (mb, CEE_RET);
4057 /* else [target == null] call this->method_ptr static */
4058 mono_mb_patch_branch (mb, pos0);
4062 if (!closed_over_null) {
4063 mono_mb_emit_ldarg (mb, 1);
4064 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4065 for (i = 1; i < sig->param_count; ++i)
4066 mono_mb_emit_ldarg (mb, i + 1);
4067 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4069 mono_mb_emit_byte (mb, CEE_LDNULL);
4070 for (i = 0; i < sig->param_count; ++i)
4071 mono_mb_emit_ldarg (mb, i + 1);
4072 mono_mb_emit_op (mb, CEE_CALL, target_method);
4075 if (static_method_with_first_arg_bound) {
4076 mono_mb_emit_ldloc (mb, local_target);
4077 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4078 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4080 for (i = 0; i < sig->param_count; ++i)
4081 mono_mb_emit_ldarg (mb, i + 1);
4082 mono_mb_emit_ldarg (mb, 0);
4083 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4084 mono_mb_emit_byte (mb, CEE_LDIND_I );
4085 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4088 mono_mb_emit_byte (mb, CEE_RET);
4090 if (static_method_with_first_arg_bound || callvirt) {
4091 // From mono_mb_create_and_cache
4092 mb->skip_visibility = 1;
4093 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4094 /*We perform double checked locking, so must fence before publishing*/
4095 mono_memory_barrier ();
4096 mono_marshal_lock ();
4097 res = g_hash_table_lookup (cache, &key);
4100 new_key = g_new0 (SignatureMethodPair, 1);
4102 if (static_method_with_first_arg_bound)
4103 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4104 g_hash_table_insert (cache, new_key, res);
4105 mono_marshal_set_wrapper_info (res, new_key);
4106 mono_marshal_unlock ();
4108 mono_marshal_unlock ();
4109 mono_free_method (newm);
4112 mb->skip_visibility = 1;
4113 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4121 * signature_dup_add_this:
4123 * Make a copy of @sig, adding an explicit this argument.
4125 static MonoMethodSignature*
4126 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
4128 MonoMethodSignature *res;
4131 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
4132 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4133 res->param_count = sig->param_count + 1;
4134 res->hasthis = FALSE;
4135 for (i = sig->param_count - 1; i >= 0; i --)
4136 res->params [i + 1] = sig->params [i];
4137 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4143 MonoMethodSignature *ctor_sig;
4144 MonoMethodSignature *sig;
4147 /* protected by the marshal lock, contains CtorSigPair pointers */
4148 static GSList *strsig_list = NULL;
4150 static MonoMethodSignature *
4151 lookup_string_ctor_signature (MonoMethodSignature *sig)
4153 MonoMethodSignature *callsig;
4157 mono_marshal_lock ();
4159 for (item = strsig_list; item; item = item->next) {
4161 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4162 * because it is lock-free.
4164 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4169 mono_marshal_unlock ();
4173 static MonoMethodSignature *
4174 add_string_ctor_signature (MonoMethod *method)
4176 MonoMethodSignature *callsig;
4179 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4180 callsig->ret = &mono_defaults.string_class->byval_arg;
4181 cs = g_new (CtorSigPair, 1);
4183 cs->ctor_sig = mono_method_signature (method);
4185 mono_marshal_lock ();
4186 strsig_list = g_slist_prepend (strsig_list, cs);
4187 mono_marshal_unlock ();
4192 * mono_marshal_get_string_ctor_signature:
4194 * Return the modified signature used by string ctors (they return the newly created
4197 MonoMethodSignature*
4198 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4200 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4202 sig = add_string_ctor_signature (method);
4208 get_runtime_invoke_type (MonoType *t, gboolean ret)
4211 /* Can't share this with 'I' as that needs another indirection */
4214 if (MONO_TYPE_IS_REFERENCE (t))
4215 return &mono_defaults.object_class->byval_arg;
4218 /* The result needs to be boxed */
4224 return &mono_defaults.sbyte_class->byval_arg;
4226 return &mono_defaults.int16_class->byval_arg;
4228 return &mono_defaults.int32_class->byval_arg;
4230 return &mono_defaults.int64_class->byval_arg;
4231 case MONO_TYPE_BOOLEAN:
4232 return &mono_defaults.sbyte_class->byval_arg;
4233 case MONO_TYPE_CHAR:
4234 return &mono_defaults.int16_class->byval_arg;
4237 return &mono_defaults.int_class->byval_arg;
4238 case MONO_TYPE_VALUETYPE:
4239 if (t->data.klass->enumtype) {
4240 t = mono_class_enum_basetype (t->data.klass);
4250 * mono_marshal_get_runtime_invoke_sig:
4252 * Return a common signature used for sharing runtime invoke wrappers.
4254 static MonoMethodSignature*
4255 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4257 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4260 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4261 for (i = 0; i < res->param_count; ++i)
4262 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4268 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4270 /* Can't share wrappers which return a vtype since it needs to be boxed */
4271 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
4274 return mono_metadata_signature_equal (sig1, sig2);
4280 * Emit the call to the wrapper method from a runtime invoke wrapper.
4283 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4284 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4286 gboolean virtual, gboolean need_direct_wrapper)
4288 static MonoString *string_dummy = NULL;
4290 int *tmp_nullable_locals;
4291 gboolean void_ret = FALSE;
4293 /* to make it work with our special string constructors */
4294 if (!string_dummy) {
4295 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4296 string_dummy = mono_string_new_wrapper ("dummy");
4300 g_assert (sig->hasthis);
4301 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4305 if (method->string_ctor) {
4306 mono_mb_emit_ptr (mb, string_dummy);
4308 mono_mb_emit_ldarg (mb, 0);
4312 tmp_nullable_locals = g_new0 (int, sig->param_count);
4314 for (i = 0; i < sig->param_count; i++) {
4315 MonoType *t = sig->params [i];
4318 mono_mb_emit_ldarg (mb, 1);
4320 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4321 mono_mb_emit_byte (mb, CEE_ADD);
4325 mono_mb_emit_byte (mb, CEE_LDIND_I);
4326 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4327 * So to make this work we unbox it to a local variablee and push a reference to that.
4329 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4330 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4332 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4333 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4334 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4339 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4340 type = sig->params [i]->type;
4344 case MONO_TYPE_BOOLEAN:
4348 case MONO_TYPE_CHAR:
4357 mono_mb_emit_byte (mb, CEE_LDIND_I);
4358 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4360 case MONO_TYPE_STRING:
4361 case MONO_TYPE_CLASS:
4362 case MONO_TYPE_ARRAY:
4364 case MONO_TYPE_SZARRAY:
4365 case MONO_TYPE_OBJECT:
4366 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4368 case MONO_TYPE_GENERICINST:
4369 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4370 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4375 case MONO_TYPE_VALUETYPE:
4376 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4377 type = mono_class_enum_basetype (t->data.klass)->type;
4380 mono_mb_emit_byte (mb, CEE_LDIND_I);
4381 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4382 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4383 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4384 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4386 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4390 g_assert_not_reached ();
4395 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4396 } else if (need_direct_wrapper) {
4397 mono_mb_emit_op (mb, CEE_CALL, method);
4399 mono_mb_emit_ldarg (mb, 3);
4400 mono_mb_emit_calli (mb, callsig);
4403 if (sig->ret->byref) {
4405 g_assert_not_reached ();
4408 switch (sig->ret->type) {
4409 case MONO_TYPE_VOID:
4410 if (!method->string_ctor)
4413 case MONO_TYPE_BOOLEAN:
4414 case MONO_TYPE_CHAR:
4427 case MONO_TYPE_VALUETYPE:
4428 case MONO_TYPE_TYPEDBYREF:
4429 case MONO_TYPE_GENERICINST:
4430 /* box value types */
4431 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4433 case MONO_TYPE_STRING:
4434 case MONO_TYPE_CLASS:
4435 case MONO_TYPE_ARRAY:
4436 case MONO_TYPE_SZARRAY:
4437 case MONO_TYPE_OBJECT:
4441 /* The result is an IntPtr */
4442 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4445 g_assert_not_reached ();
4449 mono_mb_emit_stloc (mb, loc_res);
4451 /* Convert back nullable-byref arguments */
4452 for (i = 0; i < sig->param_count; i++) {
4453 MonoType *t = sig->params [i];
4456 * Box the result and put it back into the array, the caller will have
4457 * to obtain it from there.
4459 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4460 mono_mb_emit_ldarg (mb, 1);
4461 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4462 mono_mb_emit_byte (mb, CEE_ADD);
4464 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4465 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4467 mono_mb_emit_byte (mb, CEE_STIND_REF);
4471 g_free (tmp_nullable_locals);
4475 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4476 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4477 gboolean virtual, gboolean need_direct_wrapper)
4480 MonoExceptionClause *clause;
4481 int loc_res, loc_exc;
4483 /* The wrapper looks like this:
4489 * } catch (Exception e) {
4497 /* allocate local 0 (object) tmp */
4498 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4499 /* allocate local 1 (object) exc */
4500 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4502 /* *exc is assumed to be initialized to NULL by the caller */
4504 mono_mb_emit_byte (mb, CEE_LDARG_2);
4505 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4510 labels [1] = mono_mb_get_label (mb);
4511 emit_thread_force_interrupt_checkpoint (mb);
4512 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4514 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4516 /* Add a try clause around the call */
4517 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4518 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4519 clause->data.catch_class = mono_defaults.exception_class;
4520 clause->try_offset = labels [1];
4521 clause->try_len = mono_mb_get_label (mb) - labels [1];
4523 clause->handler_offset = mono_mb_get_label (mb);
4526 mono_mb_emit_stloc (mb, loc_exc);
4527 mono_mb_emit_byte (mb, CEE_LDARG_2);
4528 mono_mb_emit_ldloc (mb, loc_exc);
4529 mono_mb_emit_byte (mb, CEE_STIND_REF);
4531 mono_mb_emit_branch (mb, CEE_LEAVE);
4533 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4535 mono_mb_set_clauses (mb, 1, clause);
4537 mono_mb_patch_branch (mb, labels [2]);
4538 mono_mb_emit_ldloc (mb, loc_res);
4539 mono_mb_emit_byte (mb, CEE_RET);
4544 mono_mb_patch_branch (mb, labels [0]);
4545 emit_thread_force_interrupt_checkpoint (mb);
4546 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4548 mono_mb_emit_ldloc (mb, 0);
4549 mono_mb_emit_byte (mb, CEE_RET);
4553 * generates IL code for the runtime invoke function
4554 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4556 * we also catch exceptions if exc != null
4557 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4558 * it means that the compiled code for METHOD does not have to be looked up
4559 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4560 * its METHOD argument.
4563 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4565 MonoMethodSignature *sig, *csig, *callsig;
4566 MonoMethodBuilder *mb;
4567 GHashTable *cache = NULL;
4568 MonoClass *target_klass;
4569 MonoMethod *res = NULL;
4570 static MonoMethodSignature *cctor_signature = NULL;
4571 static MonoMethodSignature *finalize_signature = NULL;
4573 const char *param_names [16];
4574 gboolean need_direct_wrapper = FALSE;
4579 if (!cctor_signature) {
4580 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4581 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4583 if (!finalize_signature) {
4584 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4585 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4586 finalize_signature->hasthis = 1;
4590 need_direct_wrapper = TRUE;
4593 * Use a separate cache indexed by methods to speed things up and to avoid the
4594 * boundless mempool growth caused by the signature_dup stuff below.
4597 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4599 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4600 res = mono_marshal_find_in_cache (cache, method);
4604 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4605 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4607 * Array Get/Set/Address methods. The JIT implements them using inline code
4608 * so we need to create an invoke wrapper which calls the method directly.
4610 need_direct_wrapper = TRUE;
4613 if (method->string_ctor) {
4614 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4616 callsig = add_string_ctor_signature (method);
4617 /* Can't share this as we push a string as this */
4618 need_direct_wrapper = TRUE;
4620 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4622 * Valuetype methods receive a managed pointer as the this argument.
4623 * Create a new signature to reflect this.
4625 callsig = signature_dup_add_this (method->klass->image, mono_method_signature (method), method->klass);
4626 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4627 need_direct_wrapper = TRUE;
4629 if (method->dynamic)
4630 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4632 callsig = mono_method_signature (method);
4636 target_klass = get_wrapper_target_class (method->klass->image);
4638 /* Try to share wrappers for non-corlib methods with simple signatures */
4639 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4640 callsig = cctor_signature;
4641 target_klass = mono_defaults.object_class;
4642 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4643 callsig = finalize_signature;
4644 target_klass = mono_defaults.object_class;
4647 if (need_direct_wrapper) {
4648 /* Already searched at the start */
4650 MonoMethodSignature *tmp_sig;
4652 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4654 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4655 (GHashFunc)mono_signature_hash,
4656 (GCompareFunc)runtime_invoke_signature_equal);
4658 /* from mono_marshal_find_in_cache */
4659 mono_marshal_lock ();
4660 res = g_hash_table_lookup (cache, callsig);
4661 mono_marshal_unlock ();
4668 /* Make a copy of the signature from the image mempool */
4670 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4674 sig = mono_method_signature (method);
4676 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4678 csig->ret = &mono_defaults.object_class->byval_arg;
4679 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4680 csig->params [0] = callsig->params [0];
4682 csig->params [0] = &mono_defaults.object_class->byval_arg;
4683 csig->params [1] = &mono_defaults.int_class->byval_arg;
4684 csig->params [2] = &mono_defaults.int_class->byval_arg;
4685 csig->params [3] = &mono_defaults.int_class->byval_arg;
4688 /* This is called from runtime code so it has to be cdecl */
4689 csig->call_convention = MONO_CALL_C;
4692 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4693 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4696 param_names [0] = "this";
4697 param_names [1] = "params";
4698 param_names [2] = "exc";
4699 param_names [3] = "method";
4700 mono_mb_set_param_names (mb, param_names);
4702 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4704 if (need_direct_wrapper) {
4705 mb->skip_visibility = 1;
4706 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4707 info = mono_wrapper_info_create (res, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4708 info->d.runtime_invoke.method = method;
4709 mono_marshal_set_wrapper_info (res, info);
4711 /* taken from mono_mb_create_and_cache */
4712 mono_marshal_lock ();
4713 res = g_hash_table_lookup (cache, callsig);
4714 mono_marshal_unlock ();
4716 /* Somebody may have created it before us */
4719 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4721 mono_marshal_lock ();
4722 res = g_hash_table_lookup (cache, callsig);
4725 g_hash_table_insert (cache, callsig, res);
4726 /* Can't insert it into wrapper_hash since the key is a signature */
4727 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4729 mono_free_method (newm);
4731 mono_marshal_unlock ();
4734 /* end mono_mb_create_and_cache */
4743 * mono_marshal_get_runtime_invoke_dynamic:
4745 * Return a method which can be used to invoke managed methods from native code
4747 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4748 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4749 * ARGS should point to an architecture specific structure containing
4750 * the arguments and space for the return value.
4751 * The other arguments are the same as for runtime_invoke (), except that
4752 * ARGS should contain the this argument too.
4753 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4754 * is only one copy of it, which is useful in full-aot.
4755 * The wrapper info for the wrapper is a WrapperInfo structure.
4758 mono_marshal_get_runtime_invoke_dynamic (void)
4760 static MonoMethod *method;
4761 MonoMethodSignature *csig;
4762 MonoExceptionClause *clause;
4763 MonoMethodBuilder *mb;
4771 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4773 csig->ret = &mono_defaults.void_class->byval_arg;
4774 csig->params [0] = &mono_defaults.int_class->byval_arg;
4775 csig->params [1] = &mono_defaults.int_class->byval_arg;
4776 csig->params [2] = &mono_defaults.int_class->byval_arg;
4777 csig->params [3] = &mono_defaults.int_class->byval_arg;
4779 name = g_strdup ("runtime_invoke_dynamic");
4780 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4783 /* allocate local 0 (object) tmp */
4784 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4785 /* allocate local 1 (object) exc */
4786 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4788 /* cond set *exc to null */
4789 mono_mb_emit_byte (mb, CEE_LDARG_1);
4790 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4791 mono_mb_emit_byte (mb, 3);
4792 mono_mb_emit_byte (mb, CEE_LDARG_1);
4793 mono_mb_emit_byte (mb, CEE_LDNULL);
4794 mono_mb_emit_byte (mb, CEE_STIND_REF);
4796 emit_thread_force_interrupt_checkpoint (mb);
4798 mono_mb_emit_byte (mb, CEE_LDARG_0);
4799 mono_mb_emit_byte (mb, CEE_LDARG_2);
4800 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4801 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4803 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4805 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4806 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4807 clause->try_len = mono_mb_get_label (mb);
4810 clause->data.filter_offset = mono_mb_get_label (mb);
4812 mono_mb_emit_byte (mb, CEE_POP);
4813 mono_mb_emit_byte (mb, CEE_LDARG_1);
4814 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4815 mono_mb_emit_byte (mb, CEE_PREFIX1);
4816 mono_mb_emit_byte (mb, CEE_CGT_UN);
4817 mono_mb_emit_byte (mb, CEE_PREFIX1);
4818 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4820 clause->handler_offset = mono_mb_get_label (mb);
4823 /* store exception */
4824 mono_mb_emit_stloc (mb, 1);
4826 mono_mb_emit_byte (mb, CEE_LDARG_1);
4827 mono_mb_emit_ldloc (mb, 1);
4828 mono_mb_emit_byte (mb, CEE_STIND_REF);
4830 mono_mb_emit_byte (mb, CEE_LDNULL);
4831 mono_mb_emit_stloc (mb, 0);
4833 /* Check for the abort exception */
4834 mono_mb_emit_ldloc (mb, 1);
4835 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4836 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4838 /* Delay the abort exception */
4839 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4841 mono_mb_patch_short_branch (mb, posna);
4842 mono_mb_emit_branch (mb, CEE_LEAVE);
4844 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4846 mono_mb_set_clauses (mb, 1, clause);
4849 mono_mb_patch_branch (mb, pos);
4850 //mono_mb_emit_ldloc (mb, 0);
4851 mono_mb_emit_byte (mb, CEE_RET);
4853 mono_loader_lock ();
4854 /* double-checked locking */
4856 method = mono_mb_create_method (mb, csig, 16);
4857 info = mono_wrapper_info_create (method, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4858 mono_marshal_set_wrapper_info (method, info);
4860 mono_loader_unlock ();
4868 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4870 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4871 klass->name_space, klass->name);
4873 mono_mb_emit_exception_marshal_directive (mb, msg);
4877 * mono_marshal_get_ldfld_remote_wrapper:
4878 * @klass: The return type
4880 * This method generates a wrapper for calling mono_load_remote_field_new.
4881 * The return type is ignored for now, as mono_load_remote_field_new () always
4882 * returns an object. In the future, to optimize some codepaths, we might
4883 * call a different function that takes a pointer to a valuetype, instead.
4886 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4888 MonoMethodSignature *sig, *csig;
4889 MonoMethodBuilder *mb;
4891 static MonoMethod* cached = NULL;
4893 mono_marshal_lock ();
4895 mono_marshal_unlock ();
4898 mono_marshal_unlock ();
4900 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4902 mb->method->save_lmf = 1;
4904 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4905 sig->params [0] = &mono_defaults.object_class->byval_arg;
4906 sig->params [1] = &mono_defaults.int_class->byval_arg;
4907 sig->params [2] = &mono_defaults.int_class->byval_arg;
4908 sig->ret = &mono_defaults.object_class->byval_arg;
4910 mono_mb_emit_ldarg (mb, 0);
4911 mono_mb_emit_ldarg (mb, 1);
4912 mono_mb_emit_ldarg (mb, 2);
4914 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4915 csig->params [0] = &mono_defaults.object_class->byval_arg;
4916 csig->params [1] = &mono_defaults.int_class->byval_arg;
4917 csig->params [2] = &mono_defaults.int_class->byval_arg;
4918 csig->ret = &mono_defaults.object_class->byval_arg;
4921 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4922 emit_thread_interrupt_checkpoint (mb);
4924 mono_mb_emit_byte (mb, CEE_RET);
4926 mono_marshal_lock ();
4928 mono_marshal_unlock ();
4931 newm = mono_mb_create_method (mb, sig, 4);
4932 mono_marshal_lock ();
4937 mono_marshal_unlock ();
4939 mono_marshal_unlock ();
4940 mono_free_method (newm);
4949 * mono_marshal_get_ldfld_wrapper:
4950 * @type: the type of the field
4952 * This method generates a function which can be use to load a field with type
4953 * @type from an object. The generated function has the following signature:
4954 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4957 mono_marshal_get_ldfld_wrapper (MonoType *type)
4959 MonoMethodSignature *sig;
4960 MonoMethodBuilder *mb;
4965 int t, pos0, pos1 = 0;
4967 type = mono_type_get_underlying_type (type);
4972 if (type->type == MONO_TYPE_SZARRAY) {
4973 klass = mono_defaults.array_class;
4974 } else if (type->type == MONO_TYPE_VALUETYPE) {
4975 klass = type->data.klass;
4976 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4977 klass = mono_defaults.object_class;
4978 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4979 klass = mono_defaults.int_class;
4980 } else if (t == MONO_TYPE_GENERICINST) {
4981 if (mono_type_generic_inst_is_valuetype (type))
4982 klass = mono_class_from_mono_type (type);
4984 klass = mono_defaults.object_class;
4986 klass = mono_class_from_mono_type (type);
4989 klass = mono_defaults.int_class;
4992 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4993 if ((res = mono_marshal_find_in_cache (cache, klass)))
4996 /* we add the %p pointer value of klass because class names are not unique */
4997 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4998 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5001 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5002 sig->params [0] = &mono_defaults.object_class->byval_arg;
5003 sig->params [1] = &mono_defaults.int_class->byval_arg;
5004 sig->params [2] = &mono_defaults.int_class->byval_arg;
5005 sig->params [3] = &mono_defaults.int_class->byval_arg;
5006 sig->ret = &klass->byval_arg;
5008 mono_mb_emit_ldarg (mb, 0);
5009 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5011 mono_mb_emit_ldarg (mb, 0);
5012 mono_mb_emit_ldarg (mb, 1);
5013 mono_mb_emit_ldarg (mb, 2);
5015 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5018 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5019 csig->params [0] = &mono_defaults.object_class->byval_arg;
5020 csig->params [1] = &mono_defaults.int_class->byval_arg;
5021 csig->params [2] = &mono_defaults.int_class->byval_arg;
5022 csig->ret = &klass->this_arg;
5025 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5026 emit_thread_interrupt_checkpoint (mb);
5029 if (klass->valuetype) {
5030 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5031 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5033 mono_mb_emit_byte (mb, CEE_RET);
5037 mono_mb_patch_branch (mb, pos0);
5039 mono_mb_emit_ldarg (mb, 0);
5040 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5041 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5042 mono_mb_emit_ldarg (mb, 3);
5043 mono_mb_emit_byte (mb, CEE_ADD);
5045 if (klass->valuetype)
5046 mono_mb_patch_branch (mb, pos1);
5051 case MONO_TYPE_BOOLEAN:
5052 case MONO_TYPE_CHAR:
5061 case MONO_TYPE_ARRAY:
5062 case MONO_TYPE_SZARRAY:
5063 case MONO_TYPE_OBJECT:
5064 case MONO_TYPE_CLASS:
5065 case MONO_TYPE_STRING:
5069 case MONO_TYPE_FNPTR:
5070 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5072 case MONO_TYPE_VALUETYPE:
5073 g_assert (!klass->enumtype);
5074 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5076 case MONO_TYPE_GENERICINST:
5077 if (mono_type_generic_inst_is_valuetype (type)) {
5078 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5080 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5084 g_warning ("type %x not implemented", type->type);
5085 g_assert_not_reached ();
5088 mono_mb_emit_byte (mb, CEE_RET);
5090 res = mono_mb_create_and_cache (cache, klass,
5091 mb, sig, sig->param_count + 16);
5098 * mono_marshal_get_ldflda_wrapper:
5099 * @type: the type of the field
5101 * This method generates a function which can be used to load a field address
5102 * from an object. The generated function has the following signature:
5103 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5106 mono_marshal_get_ldflda_wrapper (MonoType *type)
5108 MonoMethodSignature *sig;
5109 MonoMethodBuilder *mb;
5114 int t, pos0, pos1, pos2, pos3;
5116 type = mono_type_get_underlying_type (type);
5120 if (type->type == MONO_TYPE_SZARRAY) {
5121 klass = mono_defaults.array_class;
5122 } else if (type->type == MONO_TYPE_VALUETYPE) {
5123 klass = type->data.klass;
5124 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5125 t == MONO_TYPE_CLASS) {
5126 klass = mono_defaults.object_class;
5127 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5128 klass = mono_defaults.int_class;
5129 } else if (t == MONO_TYPE_GENERICINST) {
5130 if (mono_type_generic_inst_is_valuetype (type))
5131 klass = mono_class_from_mono_type (type);
5133 klass = mono_defaults.object_class;
5135 klass = mono_class_from_mono_type (type);
5138 klass = mono_defaults.int_class;
5141 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5142 if ((res = mono_marshal_find_in_cache (cache, klass)))
5145 /* we add the %p pointer value of klass because class names are not unique */
5146 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5147 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5150 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5151 sig->params [0] = &mono_defaults.object_class->byval_arg;
5152 sig->params [1] = &mono_defaults.int_class->byval_arg;
5153 sig->params [2] = &mono_defaults.int_class->byval_arg;
5154 sig->params [3] = &mono_defaults.int_class->byval_arg;
5155 sig->ret = &mono_defaults.int_class->byval_arg;
5157 /* if typeof (this) != transparent_proxy goto pos0 */
5158 mono_mb_emit_ldarg (mb, 0);
5159 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5161 /* if same_appdomain goto pos1 */
5162 mono_mb_emit_ldarg (mb, 0);
5163 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5165 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5167 /* same app domain */
5168 mono_mb_patch_branch (mb, pos1);
5170 /* if typeof (this) != contextbound goto pos2 */
5171 mono_mb_emit_ldarg (mb, 0);
5172 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5174 /* if this->rp->context == mono_context_get goto pos3 */
5175 mono_mb_emit_ldarg (mb, 0);
5176 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5177 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5178 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5180 mono_mb_emit_icall (mb, mono_context_get);
5181 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5183 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5185 mono_mb_patch_branch (mb, pos2);
5186 mono_mb_patch_branch (mb, pos3);
5188 /* return the address of the field from this->rp->unwrapped_server */
5189 mono_mb_emit_ldarg (mb, 0);
5190 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5191 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5192 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5193 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5194 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5195 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5196 mono_mb_emit_ldarg (mb, 3);
5197 mono_mb_emit_byte (mb, CEE_ADD);
5198 mono_mb_emit_byte (mb, CEE_RET);
5200 /* not a proxy: return the address of the field directly */
5201 mono_mb_patch_branch (mb, pos0);
5203 mono_mb_emit_ldarg (mb, 0);
5204 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5205 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5206 mono_mb_emit_ldarg (mb, 3);
5207 mono_mb_emit_byte (mb, CEE_ADD);
5209 mono_mb_emit_byte (mb, CEE_RET);
5211 res = mono_mb_create_and_cache (cache, klass,
5212 mb, sig, sig->param_count + 16);
5219 * mono_marshal_get_stfld_remote_wrapper:
5220 * klass: The type of the field
5222 * This function generates a wrapper for calling mono_store_remote_field_new
5223 * with the appropriate signature.
5224 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5225 * klass argument anymore.
5228 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5230 MonoMethodSignature *sig, *csig;
5231 MonoMethodBuilder *mb;
5233 static MonoMethod *cached = NULL;
5235 mono_marshal_lock ();
5237 mono_marshal_unlock ();
5240 mono_marshal_unlock ();
5242 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5244 mb->method->save_lmf = 1;
5246 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5247 sig->params [0] = &mono_defaults.object_class->byval_arg;
5248 sig->params [1] = &mono_defaults.int_class->byval_arg;
5249 sig->params [2] = &mono_defaults.int_class->byval_arg;
5250 sig->params [3] = &mono_defaults.object_class->byval_arg;
5251 sig->ret = &mono_defaults.void_class->byval_arg;
5253 mono_mb_emit_ldarg (mb, 0);
5254 mono_mb_emit_ldarg (mb, 1);
5255 mono_mb_emit_ldarg (mb, 2);
5256 mono_mb_emit_ldarg (mb, 3);
5258 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5259 csig->params [0] = &mono_defaults.object_class->byval_arg;
5260 csig->params [1] = &mono_defaults.int_class->byval_arg;
5261 csig->params [2] = &mono_defaults.int_class->byval_arg;
5262 csig->params [3] = &mono_defaults.object_class->byval_arg;
5263 csig->ret = &mono_defaults.void_class->byval_arg;
5266 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5267 emit_thread_interrupt_checkpoint (mb);
5269 mono_mb_emit_byte (mb, CEE_RET);
5271 mono_marshal_lock ();
5273 mono_marshal_unlock ();
5276 newm = mono_mb_create_method (mb, sig, 6);
5277 mono_marshal_lock ();
5282 mono_marshal_unlock ();
5284 mono_marshal_unlock ();
5285 mono_free_method (newm);
5294 * mono_marshal_get_stfld_wrapper:
5295 * @type: the type of the field
5297 * This method generates a function which can be use to store a field with type
5298 * @type. The generated function has the following signature:
5299 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5302 mono_marshal_get_stfld_wrapper (MonoType *type)
5304 MonoMethodSignature *sig;
5305 MonoMethodBuilder *mb;
5312 type = mono_type_get_underlying_type (type);
5316 if (type->type == MONO_TYPE_SZARRAY) {
5317 klass = mono_defaults.array_class;
5318 } else if (type->type == MONO_TYPE_VALUETYPE) {
5319 klass = type->data.klass;
5320 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5321 klass = mono_defaults.object_class;
5322 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5323 klass = mono_defaults.int_class;
5324 } else if (t == MONO_TYPE_GENERICINST) {
5325 if (mono_type_generic_inst_is_valuetype (type))
5326 klass = mono_class_from_mono_type (type);
5328 klass = mono_defaults.object_class;
5330 klass = mono_class_from_mono_type (type);
5333 klass = mono_defaults.int_class;
5336 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5337 if ((res = mono_marshal_find_in_cache (cache, klass)))
5340 /* we add the %p pointer value of klass because class names are not unique */
5341 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5342 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5345 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5346 sig->params [0] = &mono_defaults.object_class->byval_arg;
5347 sig->params [1] = &mono_defaults.int_class->byval_arg;
5348 sig->params [2] = &mono_defaults.int_class->byval_arg;
5349 sig->params [3] = &mono_defaults.int_class->byval_arg;
5350 sig->params [4] = &klass->byval_arg;
5351 sig->ret = &mono_defaults.void_class->byval_arg;
5353 mono_mb_emit_ldarg (mb, 0);
5354 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5356 mono_mb_emit_ldarg (mb, 0);
5357 mono_mb_emit_ldarg (mb, 1);
5358 mono_mb_emit_ldarg (mb, 2);
5359 mono_mb_emit_ldarg (mb, 4);
5360 if (klass->valuetype)
5361 mono_mb_emit_op (mb, CEE_BOX, klass);
5363 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5365 mono_mb_emit_byte (mb, CEE_RET);
5367 mono_mb_patch_branch (mb, pos);
5369 mono_mb_emit_ldarg (mb, 0);
5370 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5371 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5372 mono_mb_emit_ldarg (mb, 3);
5373 mono_mb_emit_byte (mb, CEE_ADD);
5374 mono_mb_emit_ldarg (mb, 4);
5379 case MONO_TYPE_BOOLEAN:
5380 case MONO_TYPE_CHAR:
5389 case MONO_TYPE_ARRAY:
5390 case MONO_TYPE_SZARRAY:
5391 case MONO_TYPE_OBJECT:
5392 case MONO_TYPE_CLASS:
5393 case MONO_TYPE_STRING:
5397 case MONO_TYPE_FNPTR:
5398 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5400 case MONO_TYPE_VALUETYPE:
5401 g_assert (!klass->enumtype);
5402 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5404 case MONO_TYPE_GENERICINST:
5405 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5408 g_warning ("type %x not implemented", type->type);
5409 g_assert_not_reached ();
5412 mono_mb_emit_byte (mb, CEE_RET);
5414 res = mono_mb_create_and_cache (cache, klass,
5415 mb, sig, sig->param_count + 16);
5422 * generates IL code for the icall wrapper (the generated method
5423 * calls the unmanaged code in func)
5424 * The wrapper info for the wrapper is a WrapperInfo structure.
5427 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5429 MonoMethodSignature *csig, *csig2;
5430 MonoMethodBuilder *mb;
5435 g_assert (sig->pinvoke);
5437 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5439 mb->method->save_lmf = 1;
5441 /* Add an explicit this argument */
5443 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
5445 csig2 = signature_dup (mono_defaults.corlib, sig);
5448 mono_mb_emit_byte (mb, CEE_LDARG_0);
5450 for (i = 0; i < sig->param_count; i++)
5451 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5453 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5454 if (check_exceptions)
5455 emit_thread_interrupt_checkpoint (mb);
5456 mono_mb_emit_byte (mb, CEE_RET);
5458 csig = signature_dup (mono_defaults.corlib, sig);
5460 if (csig->call_convention == MONO_CALL_VARARG)
5461 csig->call_convention = 0;
5463 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5466 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ICALL_WRAPPER);
5467 mono_marshal_set_wrapper_info (res, info);
5473 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5474 MonoMarshalSpec *spec,
5475 int conv_arg, MonoType **conv_arg_type,
5476 MarshalAction action)
5480 static MonoClass *ICustomMarshaler = NULL;
5481 static MonoMethod *cleanup_native, *cleanup_managed;
5482 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5483 MonoMethod *get_instance = NULL;
5484 MonoMethodBuilder *mb = m->mb;
5485 char *exception_msg = NULL;
5489 if (!ICustomMarshaler) {
5490 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5491 if (!ICustomMarshaler) {
5492 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5493 goto handle_exception;
5496 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5497 g_assert (cleanup_native);
5498 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5499 g_assert (cleanup_managed);
5500 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5501 g_assert (marshal_managed_to_native);
5502 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5503 g_assert (marshal_native_to_managed);
5506 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5507 g_assert (mtype != NULL);
5508 mklass = mono_class_from_mono_type (mtype);
5509 g_assert (mklass != NULL);
5511 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5512 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5514 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5516 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5517 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5518 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5519 (get_sig->params [0]->type != MONO_TYPE_STRING))
5520 get_instance = NULL;
5524 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);
5527 /* Throw exception and emit compensation code if neccesary */
5528 if (exception_msg) {
5530 case MARSHAL_ACTION_CONV_IN:
5531 case MARSHAL_ACTION_CONV_RESULT:
5532 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5533 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5534 mono_mb_emit_byte (mb, CEE_POP);
5536 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5537 g_free (exception_msg);
5540 case MARSHAL_ACTION_PUSH:
5541 mono_mb_emit_byte (mb, CEE_LDNULL);
5549 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5550 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5553 case MARSHAL_ACTION_CONV_IN:
5555 case MONO_TYPE_CLASS:
5556 case MONO_TYPE_OBJECT:
5557 case MONO_TYPE_STRING:
5558 case MONO_TYPE_ARRAY:
5559 case MONO_TYPE_SZARRAY:
5560 case MONO_TYPE_VALUETYPE:
5564 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5565 g_assert_not_reached ();
5569 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5571 mono_mb_emit_byte (mb, CEE_LDNULL);
5572 mono_mb_emit_stloc (mb, conv_arg);
5574 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5577 /* Minic MS.NET behavior */
5578 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5581 /* Check for null */
5582 mono_mb_emit_ldarg (mb, argnum);
5584 mono_mb_emit_byte (mb, CEE_LDIND_I);
5585 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5587 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5589 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5591 mono_mb_emit_ldarg (mb, argnum);
5593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5595 if (t->type == MONO_TYPE_VALUETYPE) {
5597 * Since we can't determine the type of the argument, we
5598 * will assume the unmanaged function takes a pointer.
5600 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5602 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5605 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5606 mono_mb_emit_stloc (mb, conv_arg);
5608 mono_mb_patch_branch (mb, pos2);
5611 case MARSHAL_ACTION_CONV_OUT:
5612 /* Check for null */
5613 mono_mb_emit_ldloc (mb, conv_arg);
5614 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5617 mono_mb_emit_ldarg (mb, argnum);
5619 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5621 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5623 mono_mb_emit_ldloc (mb, conv_arg);
5624 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5625 mono_mb_emit_byte (mb, CEE_STIND_REF);
5626 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5627 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5629 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5631 mono_mb_emit_ldloc (mb, conv_arg);
5632 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5634 /* We have nowhere to store the result */
5635 mono_mb_emit_byte (mb, CEE_POP);
5638 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5640 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5642 mono_mb_emit_ldloc (mb, conv_arg);
5644 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5646 mono_mb_patch_branch (mb, pos2);
5649 case MARSHAL_ACTION_PUSH:
5651 mono_mb_emit_ldloc_addr (mb, conv_arg);
5653 mono_mb_emit_ldloc (mb, conv_arg);
5656 case MARSHAL_ACTION_CONV_RESULT:
5657 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5659 mono_mb_emit_stloc (mb, 3);
5661 mono_mb_emit_ldloc (mb, 3);
5662 mono_mb_emit_stloc (mb, loc1);
5664 /* Check for null */
5665 mono_mb_emit_ldloc (mb, 3);
5666 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5668 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5670 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5671 mono_mb_emit_byte (mb, CEE_DUP);
5673 mono_mb_emit_ldloc (mb, 3);
5674 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5675 mono_mb_emit_stloc (mb, 3);
5677 mono_mb_emit_ldloc (mb, loc1);
5678 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5680 mono_mb_patch_branch (mb, pos2);
5683 case MARSHAL_ACTION_MANAGED_CONV_IN:
5684 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5686 mono_mb_emit_byte (mb, CEE_LDNULL);
5687 mono_mb_emit_stloc (mb, conv_arg);
5689 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5692 /* Check for null */
5693 mono_mb_emit_ldarg (mb, argnum);
5695 mono_mb_emit_byte (mb, CEE_LDIND_I);
5696 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5698 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5699 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5701 mono_mb_emit_ldarg (mb, argnum);
5703 mono_mb_emit_byte (mb, CEE_LDIND_I);
5705 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5706 mono_mb_emit_stloc (mb, conv_arg);
5708 mono_mb_patch_branch (mb, pos2);
5711 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5712 g_assert (!t->byref);
5714 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5716 mono_mb_emit_stloc (mb, 3);
5718 mono_mb_emit_ldloc (mb, 3);
5719 mono_mb_emit_stloc (mb, loc1);
5721 /* Check for null */
5722 mono_mb_emit_ldloc (mb, 3);
5723 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5725 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5726 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5727 mono_mb_emit_byte (mb, CEE_DUP);
5729 mono_mb_emit_ldloc (mb, 3);
5730 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5731 mono_mb_emit_stloc (mb, 3);
5733 mono_mb_emit_ldloc (mb, loc1);
5734 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5736 mono_mb_patch_branch (mb, pos2);
5739 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5741 /* Check for null */
5742 mono_mb_emit_ldloc (mb, conv_arg);
5743 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5746 mono_mb_emit_ldarg (mb, argnum);
5748 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5750 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5752 mono_mb_emit_ldloc (mb, conv_arg);
5753 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5754 mono_mb_emit_byte (mb, CEE_STIND_I);
5757 /* Call CleanUpManagedData */
5758 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5760 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5762 mono_mb_emit_ldloc (mb, conv_arg);
5763 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5765 mono_mb_patch_branch (mb, pos2);
5769 g_assert_not_reached ();
5776 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5777 MonoMarshalSpec *spec,
5778 int conv_arg, MonoType **conv_arg_type,
5779 MarshalAction action)
5781 MonoMethodBuilder *mb = m->mb;
5784 case MARSHAL_ACTION_CONV_IN: {
5785 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5787 g_assert (t->type == MONO_TYPE_OBJECT);
5788 g_assert (!t->byref);
5790 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5791 mono_mb_emit_ldarg (mb, argnum);
5792 mono_mb_emit_icon (mb, encoding);
5793 mono_mb_emit_icon (mb, t->attrs);
5794 mono_mb_emit_icall (mb, mono_marshal_asany);
5795 mono_mb_emit_stloc (mb, conv_arg);
5799 case MARSHAL_ACTION_PUSH:
5800 mono_mb_emit_ldloc (mb, conv_arg);
5803 case MARSHAL_ACTION_CONV_OUT: {
5804 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5806 mono_mb_emit_ldarg (mb, argnum);
5807 mono_mb_emit_ldloc (mb, conv_arg);
5808 mono_mb_emit_icon (mb, encoding);
5809 mono_mb_emit_icon (mb, t->attrs);
5810 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5815 g_assert_not_reached ();
5822 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5823 MonoMarshalSpec *spec,
5824 int conv_arg, MonoType **conv_arg_type,
5825 MarshalAction action)
5827 MonoMethodBuilder *mb = m->mb;
5828 MonoClass *klass, *date_time_class;
5831 klass = mono_class_from_mono_type (t);
5833 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5836 case MARSHAL_ACTION_CONV_IN:
5837 if (klass == date_time_class) {
5838 /* Convert it to an OLE DATE type */
5839 static MonoMethod *to_oadate;
5842 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5843 g_assert (to_oadate);
5845 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5848 mono_mb_emit_ldarg (mb, argnum);
5849 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5852 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5854 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5856 mono_mb_emit_ldarg_addr (mb, argnum);
5857 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5858 mono_mb_emit_stloc (mb, conv_arg);
5862 mono_mb_patch_branch (mb, pos);
5866 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5867 klass->blittable || klass->enumtype)
5870 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5872 /* store the address of the source into local variable 0 */
5874 mono_mb_emit_ldarg (mb, argnum);
5876 mono_mb_emit_ldarg_addr (mb, argnum);
5878 mono_mb_emit_stloc (mb, 0);
5880 /* allocate space for the native struct and
5881 * store the address into local variable 1 (dest) */
5882 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5883 mono_mb_emit_byte (mb, CEE_PREFIX1);
5884 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5885 mono_mb_emit_stloc (mb, conv_arg);
5888 mono_mb_emit_ldloc (mb, 0);
5889 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5892 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5894 mono_mb_emit_ldloc (mb, conv_arg);
5895 mono_mb_emit_stloc (mb, 1);
5897 /* emit valuetype conversion code */
5898 emit_struct_conv (mb, klass, FALSE);
5902 mono_mb_patch_branch (mb, pos);
5905 case MARSHAL_ACTION_PUSH:
5906 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5908 g_assert (!t->byref);
5910 /* Have to change the signature since the vtype is passed byref */
5911 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5913 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5914 klass->blittable || klass->enumtype)
5915 mono_mb_emit_ldarg_addr (mb, argnum);
5917 mono_mb_emit_ldloc (mb, conv_arg);
5921 if (klass == date_time_class) {
5923 mono_mb_emit_ldloc_addr (mb, conv_arg);
5925 mono_mb_emit_ldloc (mb, conv_arg);
5929 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5930 klass->blittable || klass->enumtype) {
5931 mono_mb_emit_ldarg (mb, argnum);
5934 mono_mb_emit_ldloc (mb, conv_arg);
5936 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5937 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5941 case MARSHAL_ACTION_CONV_OUT:
5942 if (klass == date_time_class) {
5943 /* Convert from an OLE DATE type */
5944 static MonoMethod *from_oadate;
5949 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5951 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5952 g_assert (from_oadate);
5954 mono_mb_emit_ldarg (mb, argnum);
5955 mono_mb_emit_ldloc (mb, conv_arg);
5956 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5957 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5962 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5963 klass->blittable || klass->enumtype)
5967 /* dst = argument */
5968 mono_mb_emit_ldarg (mb, argnum);
5969 mono_mb_emit_stloc (mb, 1);
5971 mono_mb_emit_ldloc (mb, 1);
5972 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5974 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5975 /* src = tmp_locals [i] */
5976 mono_mb_emit_ldloc (mb, conv_arg);
5977 mono_mb_emit_stloc (mb, 0);
5979 /* emit valuetype conversion code */
5980 emit_struct_conv (mb, klass, TRUE);
5984 emit_struct_free (mb, klass, conv_arg);
5987 mono_mb_patch_branch (mb, pos);
5990 case MARSHAL_ACTION_CONV_RESULT:
5991 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5993 mono_mb_emit_stloc (mb, 3);
5997 /* load pointer to returned value type */
5998 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5999 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6000 /* store the address of the source into local variable 0 */
6001 mono_mb_emit_stloc (mb, 0);
6003 mono_mb_emit_ldloc_addr (mb, 3);
6004 mono_mb_emit_stloc (mb, 1);
6006 /* emit valuetype conversion code */
6007 emit_struct_conv (mb, klass, TRUE);
6010 case MARSHAL_ACTION_MANAGED_CONV_IN:
6011 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6012 klass->blittable || klass->enumtype) {
6017 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6019 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6023 mono_mb_emit_ldarg (mb, argnum);
6025 mono_mb_emit_ldarg_addr (mb, argnum);
6026 mono_mb_emit_stloc (mb, 0);
6029 mono_mb_emit_ldloc (mb, 0);
6030 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6033 mono_mb_emit_ldloc_addr (mb, conv_arg);
6034 mono_mb_emit_stloc (mb, 1);
6036 /* emit valuetype conversion code */
6037 emit_struct_conv (mb, klass, TRUE);
6040 mono_mb_patch_branch (mb, pos);
6043 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6044 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6045 klass->blittable || klass->enumtype) {
6049 /* Check for null */
6050 mono_mb_emit_ldarg (mb, argnum);
6051 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6054 mono_mb_emit_ldloc_addr (mb, conv_arg);
6055 mono_mb_emit_stloc (mb, 0);
6058 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_stloc (mb, 1);
6061 /* emit valuetype conversion code */
6062 emit_struct_conv (mb, klass, FALSE);
6064 mono_mb_patch_branch (mb, pos2);
6067 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6068 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6069 klass->blittable || klass->enumtype) {
6070 mono_mb_emit_stloc (mb, 3);
6075 /* load pointer to returned value type */
6076 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6077 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6079 /* store the address of the source into local variable 0 */
6080 mono_mb_emit_stloc (mb, 0);
6081 /* allocate space for the native struct and
6082 * store the address into dst_ptr */
6083 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6084 m->retobj_class = klass;
6085 g_assert (m->retobj_var);
6086 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6087 mono_mb_emit_byte (mb, CEE_CONV_I);
6088 mono_mb_emit_icall (mb, mono_marshal_alloc);
6089 mono_mb_emit_stloc (mb, 1);
6090 mono_mb_emit_ldloc (mb, 1);
6091 mono_mb_emit_stloc (mb, m->retobj_var);
6093 /* emit valuetype conversion code */
6094 emit_struct_conv (mb, klass, FALSE);
6098 g_assert_not_reached ();
6105 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6106 MonoMarshalSpec *spec,
6107 int conv_arg, MonoType **conv_arg_type,
6108 MarshalAction action)
6110 MonoMethodBuilder *mb = m->mb;
6111 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6112 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6116 case MARSHAL_ACTION_CONV_IN:
6117 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6118 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6121 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6124 mono_mb_emit_ldarg (mb, argnum);
6125 mono_mb_emit_byte (mb, CEE_LDIND_I);
6127 mono_mb_emit_ldarg (mb, argnum);
6131 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6132 MonoException *exc = mono_get_exception_not_implemented (msg);
6133 g_warning ("%s", msg);
6135 mono_raise_exception (exc);
6138 mono_mb_emit_icall (mb, conv_to_icall (conv));
6140 mono_mb_emit_stloc (mb, conv_arg);
6143 case MARSHAL_ACTION_CONV_OUT:
6144 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6146 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6147 mono_mb_emit_exception_marshal_directive (mb, msg);
6151 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6152 static MonoMethod *m;
6155 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6160 * Have to allocate a new string with the same length as the original, and
6161 * copy the contents of the buffer pointed to by CONV_ARG into it.
6163 g_assert (t->byref);
6164 mono_mb_emit_ldarg (mb, argnum);
6165 mono_mb_emit_ldloc (mb, conv_arg);
6166 mono_mb_emit_ldarg (mb, argnum);
6167 mono_mb_emit_byte (mb, CEE_LDIND_I);
6168 mono_mb_emit_managed_call (mb, m, NULL);
6169 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6170 mono_mb_emit_byte (mb, CEE_STIND_REF);
6171 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6172 mono_mb_emit_ldarg (mb, argnum);
6173 mono_mb_emit_ldloc (mb, conv_arg);
6174 mono_mb_emit_icall (mb, conv_to_icall (conv));
6175 mono_mb_emit_byte (mb, CEE_STIND_REF);
6180 mono_mb_emit_ldloc (mb, conv_arg);
6181 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6182 mono_mb_emit_icall (mb, mono_free_bstr);
6184 mono_mb_emit_icall (mb, mono_marshal_free);
6188 case MARSHAL_ACTION_PUSH:
6189 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6190 mono_mb_emit_ldloc_addr (mb, conv_arg);
6192 mono_mb_emit_ldloc (mb, conv_arg);
6195 case MARSHAL_ACTION_CONV_RESULT:
6196 mono_mb_emit_stloc (mb, 0);
6198 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6200 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6201 mono_mb_emit_exception_marshal_directive (mb, msg);
6205 mono_mb_emit_ldloc (mb, 0);
6206 mono_mb_emit_icall (mb, conv_to_icall (conv));
6207 mono_mb_emit_stloc (mb, 3);
6209 /* free the string */
6210 mono_mb_emit_ldloc (mb, 0);
6211 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6212 mono_mb_emit_icall (mb, mono_free_bstr);
6214 mono_mb_emit_icall (mb, mono_marshal_free);
6217 case MARSHAL_ACTION_MANAGED_CONV_IN:
6218 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6220 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6223 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6227 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6229 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6230 mono_mb_emit_exception_marshal_directive (mb, msg);
6234 mono_mb_emit_ldarg (mb, argnum);
6236 mono_mb_emit_byte (mb, CEE_LDIND_I);
6237 mono_mb_emit_icall (mb, conv_to_icall (conv));
6238 mono_mb_emit_stloc (mb, conv_arg);
6241 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6244 mono_mb_emit_ldarg (mb, argnum);
6245 mono_mb_emit_ldloc (mb, conv_arg);
6246 mono_mb_emit_icall (mb, conv_to_icall (conv));
6247 mono_mb_emit_byte (mb, CEE_STIND_I);
6252 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6253 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6254 /* We need to make a copy so the caller is able to free it */
6255 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6257 mono_mb_emit_icall (mb, conv_to_icall (conv));
6258 mono_mb_emit_stloc (mb, 3);
6262 g_assert_not_reached ();
6269 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6270 MonoMarshalSpec *spec, int conv_arg,
6271 MonoType **conv_arg_type, MarshalAction action)
6273 MonoMethodBuilder *mb = m->mb;
6276 case MARSHAL_ACTION_CONV_IN: {
6277 MonoType *intptr_type;
6278 int dar_release_slot, pos;
6280 intptr_type = &mono_defaults.int_class->byval_arg;
6281 conv_arg = mono_mb_add_local (mb, intptr_type);
6282 *conv_arg_type = intptr_type;
6284 if (!sh_dangerous_add_ref)
6285 init_safe_handle ();
6287 mono_mb_emit_ldarg (mb, argnum);
6288 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6289 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6291 mono_mb_patch_branch (mb, pos);
6294 * My tests in show that ref SafeHandles are not really
6295 * passed as ref objects. Instead a NULL is passed as the
6298 mono_mb_emit_icon (mb, 0);
6299 mono_mb_emit_stloc (mb, conv_arg);
6303 /* Create local to hold the ref parameter to DangerousAddRef */
6304 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6306 /* set release = false; */
6307 mono_mb_emit_icon (mb, 0);
6308 mono_mb_emit_stloc (mb, dar_release_slot);
6310 /* safehandle.DangerousAddRef (ref release) */
6311 mono_mb_emit_ldarg (mb, argnum);
6312 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6313 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6315 /* Pull the handle field from SafeHandle */
6316 mono_mb_emit_ldarg (mb, argnum);
6317 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6318 mono_mb_emit_byte (mb, CEE_LDIND_I);
6319 mono_mb_emit_stloc (mb, conv_arg);
6324 case MARSHAL_ACTION_PUSH:
6326 mono_mb_emit_ldloc_addr (mb, conv_arg);
6328 mono_mb_emit_ldloc (mb, conv_arg);
6331 case MARSHAL_ACTION_CONV_OUT: {
6332 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6333 int dar_release_slot = conv_arg + 1;
6336 if (!sh_dangerous_release)
6337 init_safe_handle ();
6343 * My tests indicate that ref SafeHandles parameters are not actually
6344 * passed by ref, but instead a new Handle is created regardless of
6345 * whether a change happens in the unmanaged side.
6347 * Also, the Handle is created before calling into unmanaged code,
6348 * but we do not support that mechanism (getting to the original
6349 * handle) and it makes no difference where we create this
6351 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6353 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6356 /* refval = new SafeHandleDerived ()*/
6357 mono_mb_emit_ldarg (mb, argnum);
6358 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6359 mono_mb_emit_byte (mb, CEE_STIND_REF);
6361 /* refval.handle = returned_handle */
6362 mono_mb_emit_ldarg (mb, argnum);
6363 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6364 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6365 mono_mb_emit_ldloc (mb, conv_arg);
6366 mono_mb_emit_byte (mb, CEE_STIND_I);
6368 mono_mb_emit_ldloc (mb, dar_release_slot);
6369 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6370 mono_mb_emit_ldarg (mb, argnum);
6371 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6372 mono_mb_patch_branch (mb, label_next);
6377 case MARSHAL_ACTION_CONV_RESULT: {
6378 MonoMethod *ctor = NULL;
6379 int intptr_handle_slot;
6381 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6382 mono_mb_emit_byte (mb, CEE_POP);
6383 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6387 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6389 mono_mb_emit_byte (mb, CEE_POP);
6390 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6393 /* Store the IntPtr results into a local */
6394 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6395 mono_mb_emit_stloc (mb, intptr_handle_slot);
6397 /* Create return value */
6398 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6399 mono_mb_emit_stloc (mb, 3);
6401 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6402 mono_mb_emit_ldloc (mb, 3);
6403 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6404 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6405 mono_mb_emit_byte (mb, CEE_STIND_I);
6409 case MARSHAL_ACTION_MANAGED_CONV_IN:
6410 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6413 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6414 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6417 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6418 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6421 printf ("Unhandled case for MarshalAction: %d\n", action);
6428 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6429 MonoMarshalSpec *spec, int conv_arg,
6430 MonoType **conv_arg_type, MarshalAction action)
6432 MonoMethodBuilder *mb = m->mb;
6435 case MARSHAL_ACTION_CONV_IN: {
6436 MonoType *intptr_type;
6438 intptr_type = &mono_defaults.int_class->byval_arg;
6439 conv_arg = mono_mb_add_local (mb, intptr_type);
6440 *conv_arg_type = intptr_type;
6443 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6444 mono_mb_emit_exception_marshal_directive (mb, msg);
6447 mono_mb_emit_ldarg_addr (mb, argnum);
6448 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6449 mono_mb_emit_byte (mb, CEE_ADD);
6450 mono_mb_emit_byte (mb, CEE_LDIND_I);
6451 mono_mb_emit_stloc (mb, conv_arg);
6455 case MARSHAL_ACTION_PUSH:
6456 mono_mb_emit_ldloc (mb, conv_arg);
6459 case MARSHAL_ACTION_CONV_OUT: {
6460 /* no resource release required */
6464 case MARSHAL_ACTION_CONV_RESULT: {
6465 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6466 mono_mb_emit_exception_marshal_directive (mb, msg);
6470 case MARSHAL_ACTION_MANAGED_CONV_IN:
6471 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6474 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6475 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6478 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6479 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6482 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6489 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6490 MonoMarshalSpec *spec,
6491 int conv_arg, MonoType **conv_arg_type,
6492 MarshalAction action)
6494 MonoMethodBuilder *mb = m->mb;
6495 MonoClass *klass = mono_class_from_mono_type (t);
6499 case MARSHAL_ACTION_CONV_IN:
6500 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6501 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6503 m->orig_conv_args [argnum] = 0;
6505 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6506 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6507 mono_mb_emit_exception_marshal_directive (mb, msg);
6511 if (klass->delegate) {
6513 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6514 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6515 mono_mb_emit_exception_marshal_directive (mb, msg);
6517 mono_mb_emit_byte (mb, CEE_LDNULL);
6518 mono_mb_emit_stloc (mb, conv_arg);
6520 mono_mb_emit_ldarg (mb, argnum);
6521 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6522 mono_mb_emit_stloc (mb, conv_arg);
6524 } else if (klass == mono_defaults.stringbuilder_class) {
6525 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6526 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6530 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6531 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6532 mono_mb_emit_exception_marshal_directive (mb, msg);
6538 if (t->byref && !t->attrs & PARAM_ATTRIBUTE_IN && t->attrs & PARAM_ATTRIBUTE_OUT)
6541 mono_mb_emit_ldarg (mb, argnum);
6543 mono_mb_emit_byte (mb, CEE_LDIND_I);
6546 mono_mb_emit_icall (mb, conv_to_icall (conv));
6548 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6549 MonoException *exc = mono_get_exception_not_implemented (msg);
6550 g_warning ("%s", msg);
6552 mono_raise_exception (exc);
6555 mono_mb_emit_stloc (mb, conv_arg);
6556 } else if (klass->blittable) {
6557 mono_mb_emit_byte (mb, CEE_LDNULL);
6558 mono_mb_emit_stloc (mb, conv_arg);
6560 mono_mb_emit_ldarg (mb, argnum);
6561 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6563 mono_mb_emit_ldarg (mb, argnum);
6564 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6565 mono_mb_emit_stloc (mb, conv_arg);
6567 mono_mb_patch_branch (mb, pos);
6570 mono_mb_emit_byte (mb, CEE_LDNULL);
6571 mono_mb_emit_stloc (mb, conv_arg);
6574 /* we dont need any conversions for out parameters */
6575 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6578 mono_mb_emit_ldarg (mb, argnum);
6579 mono_mb_emit_byte (mb, CEE_LDIND_I);
6582 mono_mb_emit_ldarg (mb, argnum);
6583 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6584 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6587 /* store the address of the source into local variable 0 */
6588 mono_mb_emit_stloc (mb, 0);
6589 mono_mb_emit_ldloc (mb, 0);
6590 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6592 /* allocate space for the native struct and store the address */
6593 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6594 mono_mb_emit_byte (mb, CEE_PREFIX1);
6595 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6596 mono_mb_emit_stloc (mb, conv_arg);
6599 /* Need to store the original buffer so we can free it later */
6600 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6601 mono_mb_emit_ldloc (mb, conv_arg);
6602 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6605 /* set the src_ptr */
6606 mono_mb_emit_ldloc (mb, 0);
6607 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6608 mono_mb_emit_stloc (mb, 0);
6611 mono_mb_emit_ldloc (mb, conv_arg);
6612 mono_mb_emit_stloc (mb, 1);
6614 /* emit valuetype conversion code */
6615 emit_struct_conv (mb, klass, FALSE);
6617 mono_mb_patch_branch (mb, pos);
6621 case MARSHAL_ACTION_CONV_OUT:
6622 if (klass == mono_defaults.stringbuilder_class) {
6624 MonoMarshalNative encoding;
6625 MonoMarshalConv conv;
6627 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6628 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6630 g_assert (encoding != -1);
6633 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
6637 mono_mb_emit_ldarg (mb, argnum);
6638 mono_mb_emit_ldloc (mb, conv_arg);
6641 case MONO_NATIVE_LPWSTR:
6642 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6644 case MONO_NATIVE_LPSTR:
6645 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6648 g_assert_not_reached ();
6651 mono_mb_emit_byte (mb, CEE_STIND_REF);
6653 mono_mb_emit_ldarg (mb, argnum);
6654 mono_mb_emit_ldloc (mb, conv_arg);
6656 mono_mb_emit_icall (mb, conv_to_icall (conv));
6660 mono_mb_emit_ldloc (mb, conv_arg);
6661 mono_mb_emit_icall (mb, mono_marshal_free);
6666 if (klass->delegate) {
6668 mono_mb_emit_ldarg (mb, argnum);
6669 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6670 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6671 mono_mb_emit_ldloc (mb, conv_arg);
6672 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6673 mono_mb_emit_byte (mb, CEE_STIND_REF);
6678 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6679 /* allocate a new object */
6680 mono_mb_emit_ldarg (mb, argnum);
6681 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6682 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6683 mono_mb_emit_byte (mb, CEE_STIND_REF);
6686 /* dst = *argument */
6687 mono_mb_emit_ldarg (mb, argnum);
6690 mono_mb_emit_byte (mb, CEE_LDIND_I);
6692 mono_mb_emit_stloc (mb, 1);
6694 mono_mb_emit_ldloc (mb, 1);
6695 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6697 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6698 mono_mb_emit_ldloc (mb, 1);
6699 mono_mb_emit_icon (mb, sizeof (MonoObject));
6700 mono_mb_emit_byte (mb, CEE_ADD);
6701 mono_mb_emit_stloc (mb, 1);
6703 /* src = tmp_locals [i] */
6704 mono_mb_emit_ldloc (mb, conv_arg);
6705 mono_mb_emit_stloc (mb, 0);
6707 /* emit valuetype conversion code */
6708 emit_struct_conv (mb, klass, TRUE);
6710 /* Free the structure returned by the native code */
6711 emit_struct_free (mb, klass, conv_arg);
6713 if (m->orig_conv_args [argnum]) {
6715 * If the native function changed the pointer, then free
6716 * the original structure plus the new pointer.
6718 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6719 mono_mb_emit_ldloc (mb, conv_arg);
6720 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6722 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6723 g_assert (m->orig_conv_args [argnum]);
6725 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6728 mono_mb_emit_ldloc (mb, conv_arg);
6729 mono_mb_emit_icall (mb, mono_marshal_free);
6731 mono_mb_patch_branch (mb, pos2);
6735 /* Free the original structure passed to native code */
6736 emit_struct_free (mb, klass, conv_arg);
6738 mono_mb_patch_branch (mb, pos);
6741 case MARSHAL_ACTION_PUSH:
6743 mono_mb_emit_ldloc_addr (mb, conv_arg);
6745 mono_mb_emit_ldloc (mb, conv_arg);
6748 case MARSHAL_ACTION_CONV_RESULT:
6749 if (klass->delegate) {
6750 g_assert (!t->byref);
6751 mono_mb_emit_stloc (mb, 0);
6752 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6753 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6754 mono_mb_emit_ldloc (mb, 0);
6755 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6756 mono_mb_emit_stloc (mb, 3);
6759 mono_mb_emit_stloc (mb, 0);
6761 /* Make a copy since emit_conv modifies local 0 */
6762 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6763 mono_mb_emit_ldloc (mb, 0);
6764 mono_mb_emit_stloc (mb, loc);
6766 mono_mb_emit_byte (mb, CEE_LDNULL);
6767 mono_mb_emit_stloc (mb, 3);
6769 mono_mb_emit_ldloc (mb, 0);
6770 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6772 /* allocate result object */
6774 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6775 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6776 mono_mb_emit_stloc (mb, 3);
6780 mono_mb_emit_ldloc (mb, 3);
6781 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6782 mono_mb_emit_stloc (mb, 1);
6784 /* emit conversion code */
6785 emit_struct_conv (mb, klass, TRUE);
6787 emit_struct_free (mb, klass, loc);
6789 /* Free the pointer allocated by unmanaged code */
6790 mono_mb_emit_ldloc (mb, loc);
6791 mono_mb_emit_icall (mb, mono_marshal_free);
6792 mono_mb_patch_branch (mb, pos);
6796 case MARSHAL_ACTION_MANAGED_CONV_IN:
6797 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6799 if (klass->delegate) {
6800 g_assert (!t->byref);
6801 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6802 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6803 mono_mb_emit_ldarg (mb, argnum);
6804 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6805 mono_mb_emit_stloc (mb, conv_arg);
6809 if (klass == mono_defaults.stringbuilder_class) {
6810 MonoMarshalNative encoding;
6812 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6815 g_assert (encoding == MONO_NATIVE_LPSTR);
6817 g_assert (!t->byref);
6818 g_assert (encoding != -1);
6820 mono_mb_emit_ldarg (mb, argnum);
6821 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6822 mono_mb_emit_stloc (mb, conv_arg);
6826 /* The class can not have an automatic layout */
6827 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6828 mono_mb_emit_auto_layout_exception (mb, klass);
6832 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6833 mono_mb_emit_byte (mb, CEE_LDNULL);
6834 mono_mb_emit_stloc (mb, conv_arg);
6839 mono_mb_emit_ldarg (mb, argnum);
6843 /* Check for NULL and raise an exception */
6844 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6846 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6848 mono_mb_patch_branch (mb, pos2);
6849 mono_mb_emit_ldarg (mb, argnum);
6850 mono_mb_emit_byte (mb, CEE_LDIND_I);
6853 mono_mb_emit_stloc (mb, 0);
6855 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6856 mono_mb_emit_stloc (mb, conv_arg);
6858 mono_mb_emit_ldloc (mb, 0);
6859 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6861 /* Create and set dst */
6862 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6863 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6864 mono_mb_emit_stloc (mb, conv_arg);
6865 mono_mb_emit_ldloc (mb, conv_arg);
6866 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6867 mono_mb_emit_stloc (mb, 1);
6869 /* emit valuetype conversion code */
6870 emit_struct_conv (mb, klass, TRUE);
6872 mono_mb_patch_branch (mb, pos);
6875 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6877 /* Check for null */
6878 mono_mb_emit_ldloc (mb, conv_arg);
6879 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6880 mono_mb_emit_ldarg (mb, argnum);
6881 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6882 mono_mb_emit_byte (mb, CEE_STIND_REF);
6883 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6885 mono_mb_patch_branch (mb, pos);
6888 mono_mb_emit_ldloc (mb, conv_arg);
6889 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6890 mono_mb_emit_stloc (mb, 0);
6892 /* Allocate and set dest */
6893 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6894 mono_mb_emit_byte (mb, CEE_CONV_I);
6895 mono_mb_emit_icall (mb, mono_marshal_alloc);
6896 mono_mb_emit_stloc (mb, 1);
6898 /* Update argument pointer */
6899 mono_mb_emit_ldarg (mb, argnum);
6900 mono_mb_emit_ldloc (mb, 1);
6901 mono_mb_emit_byte (mb, CEE_STIND_I);
6903 /* emit valuetype conversion code */
6904 emit_struct_conv (mb, klass, FALSE);
6906 mono_mb_patch_branch (mb, pos2);
6908 /* byval [Out] marshalling */
6910 /* FIXME: Handle null */
6913 mono_mb_emit_ldloc (mb, conv_arg);
6914 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6915 mono_mb_emit_stloc (mb, 0);
6918 mono_mb_emit_ldarg (mb, argnum);
6919 mono_mb_emit_stloc (mb, 1);
6921 /* emit valuetype conversion code */
6922 emit_struct_conv (mb, klass, FALSE);
6926 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6927 if (klass->delegate) {
6928 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6929 mono_mb_emit_stloc (mb, 3);
6933 /* The class can not have an automatic layout */
6934 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6935 mono_mb_emit_auto_layout_exception (mb, klass);
6939 mono_mb_emit_stloc (mb, 0);
6940 /* Check for null */
6941 mono_mb_emit_ldloc (mb, 0);
6942 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6943 mono_mb_emit_byte (mb, CEE_LDNULL);
6944 mono_mb_emit_stloc (mb, 3);
6945 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6947 mono_mb_patch_branch (mb, pos);
6950 mono_mb_emit_ldloc (mb, 0);
6951 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6952 mono_mb_emit_stloc (mb, 0);
6954 /* Allocate and set dest */
6955 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6956 mono_mb_emit_byte (mb, CEE_CONV_I);
6957 mono_mb_emit_icall (mb, mono_marshal_alloc);
6958 mono_mb_emit_byte (mb, CEE_DUP);
6959 mono_mb_emit_stloc (mb, 1);
6960 mono_mb_emit_stloc (mb, 3);
6962 emit_struct_conv (mb, klass, FALSE);
6964 mono_mb_patch_branch (mb, pos2);
6968 g_assert_not_reached ();
6975 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6976 MonoMarshalSpec *spec,
6977 int conv_arg, MonoType **conv_arg_type,
6978 MarshalAction action)
6980 MonoMethodBuilder *mb = m->mb;
6981 static MonoMethod *get_object_for_native_variant = NULL;
6982 static MonoMethod *get_native_variant_for_object = NULL;
6984 mono_init_com_types ();
6986 if (!get_object_for_native_variant)
6987 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6988 g_assert (get_object_for_native_variant);
6990 if (!get_native_variant_for_object)
6991 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6992 g_assert (get_native_variant_for_object);
6995 case MARSHAL_ACTION_CONV_IN: {
6996 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6999 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7001 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7003 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7006 mono_mb_emit_ldarg (mb, argnum);
7008 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7009 mono_mb_emit_ldloc_addr (mb, conv_arg);
7010 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7014 case MARSHAL_ACTION_CONV_OUT: {
7015 static MonoMethod *variant_clear = NULL;
7018 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7019 g_assert (variant_clear);
7022 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7023 mono_mb_emit_ldarg (mb, argnum);
7024 mono_mb_emit_ldloc_addr (mb, conv_arg);
7025 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7026 mono_mb_emit_byte (mb, CEE_STIND_REF);
7029 mono_mb_emit_ldloc_addr (mb, conv_arg);
7030 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7034 case MARSHAL_ACTION_PUSH:
7036 mono_mb_emit_ldloc_addr (mb, conv_arg);
7038 mono_mb_emit_ldloc (mb, conv_arg);
7041 case MARSHAL_ACTION_CONV_RESULT: {
7042 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7043 mono_mb_emit_exception_marshal_directive (mb, msg);
7047 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7048 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7051 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7053 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7055 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7059 mono_mb_emit_ldarg (mb, argnum);
7061 mono_mb_emit_ldarg_addr (mb, argnum);
7062 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7063 mono_mb_emit_stloc (mb, conv_arg);
7067 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7068 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7069 mono_mb_emit_ldloc (mb, conv_arg);
7070 mono_mb_emit_ldarg (mb, argnum);
7071 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7076 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7077 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7078 mono_mb_emit_exception_marshal_directive (mb, msg);
7083 g_assert_not_reached ();
7090 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
7092 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
7093 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
7095 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
7097 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7108 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7109 MonoMarshalSpec *spec,
7110 int conv_arg, MonoType **conv_arg_type,
7111 MarshalAction action)
7113 MonoMethodBuilder *mb = m->mb;
7114 MonoClass *klass = mono_class_from_mono_type (t);
7115 gboolean need_convert, need_free;
7116 MonoMarshalNative encoding;
7118 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7121 case MARSHAL_ACTION_CONV_IN:
7122 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7123 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7125 if (klass->element_class->blittable) {
7126 mono_mb_emit_ldarg (mb, argnum);
7128 mono_mb_emit_byte (mb, CEE_LDIND_I);
7129 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7130 mono_mb_emit_stloc (mb, conv_arg);
7133 guint32 label1, label2, label3;
7134 int index_var, src_var, dest_ptr, esize;
7135 MonoMarshalConv conv;
7136 gboolean is_string = FALSE;
7138 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7140 eklass = klass->element_class;
7142 if (eklass == mono_defaults.string_class) {
7144 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7146 else if (eklass == mono_defaults.stringbuilder_class) {
7148 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7153 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7154 mono_mb_emit_ldarg (mb, argnum);
7156 mono_mb_emit_byte (mb, CEE_LDIND_I);
7157 mono_mb_emit_stloc (mb, src_var);
7160 mono_mb_emit_ldloc (mb, src_var);
7161 mono_mb_emit_stloc (mb, conv_arg);
7162 mono_mb_emit_ldloc (mb, src_var);
7163 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7167 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7168 MonoException *exc = mono_get_exception_not_implemented (msg);
7169 g_warning ("%s", msg);
7171 mono_raise_exception (exc);
7176 esize = sizeof (gpointer);
7177 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7178 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7180 esize = mono_class_native_size (eklass, NULL);
7182 /* allocate space for the native struct and store the address */
7183 mono_mb_emit_icon (mb, esize);
7184 mono_mb_emit_ldloc (mb, src_var);
7185 mono_mb_emit_byte (mb, CEE_LDLEN);
7187 if (eklass == mono_defaults.string_class) {
7188 /* Make the array bigger for the terminating null */
7189 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7190 mono_mb_emit_byte (mb, CEE_ADD);
7192 mono_mb_emit_byte (mb, CEE_MUL);
7193 mono_mb_emit_byte (mb, CEE_PREFIX1);
7194 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7195 mono_mb_emit_stloc (mb, conv_arg);
7197 mono_mb_emit_ldloc (mb, conv_arg);
7198 mono_mb_emit_stloc (mb, dest_ptr);
7200 /* Emit marshalling loop */
7201 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7202 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7203 mono_mb_emit_stloc (mb, index_var);
7204 label2 = mono_mb_get_label (mb);
7205 mono_mb_emit_ldloc (mb, index_var);
7206 mono_mb_emit_ldloc (mb, src_var);
7207 mono_mb_emit_byte (mb, CEE_LDLEN);
7208 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7210 /* Emit marshalling code */
7213 mono_mb_emit_ldloc (mb, dest_ptr);
7214 mono_mb_emit_ldloc (mb, src_var);
7215 mono_mb_emit_ldloc (mb, index_var);
7216 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7217 mono_mb_emit_icall (mb, conv_to_icall (conv));
7218 mono_mb_emit_byte (mb, CEE_STIND_I);
7220 /* set the src_ptr */
7221 mono_mb_emit_ldloc (mb, src_var);
7222 mono_mb_emit_ldloc (mb, index_var);
7223 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7224 mono_mb_emit_stloc (mb, 0);
7227 mono_mb_emit_ldloc (mb, dest_ptr);
7228 mono_mb_emit_stloc (mb, 1);
7230 /* emit valuetype conversion code */
7231 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7234 mono_mb_emit_add_to_local (mb, index_var, 1);
7235 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7237 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7239 mono_mb_patch_branch (mb, label3);
7241 if (eklass == mono_defaults.string_class) {
7242 /* Null terminate */
7243 mono_mb_emit_ldloc (mb, dest_ptr);
7244 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7245 mono_mb_emit_byte (mb, CEE_STIND_REF);
7248 mono_mb_patch_branch (mb, label1);
7253 case MARSHAL_ACTION_CONV_OUT:
7254 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7255 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);
7256 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7259 if (need_convert || need_free) {
7260 /* FIXME: Optimize blittable case */
7262 guint32 label1, label2, label3;
7263 int index_var, src_ptr, loc, esize;
7265 eklass = klass->element_class;
7266 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7267 esize = sizeof (gpointer);
7268 else if (eklass == mono_defaults.char_class)
7269 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7271 esize = mono_class_native_size (eklass, NULL);
7272 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7273 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7276 mono_mb_emit_ldarg (mb, argnum);
7278 mono_mb_emit_byte (mb, CEE_LDIND_I);
7279 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7281 mono_mb_emit_ldloc (mb, conv_arg);
7282 mono_mb_emit_stloc (mb, src_ptr);
7284 /* Emit marshalling loop */
7285 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7286 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7287 mono_mb_emit_stloc (mb, index_var);
7288 label2 = mono_mb_get_label (mb);
7289 mono_mb_emit_ldloc (mb, index_var);
7290 mono_mb_emit_ldarg (mb, argnum);
7292 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7293 mono_mb_emit_byte (mb, CEE_LDLEN);
7294 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7296 /* Emit marshalling code */
7298 if (eklass == mono_defaults.stringbuilder_class) {
7299 gboolean need_free2;
7300 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7302 g_assert (conv != -1);
7305 mono_mb_emit_ldarg (mb, argnum);
7307 mono_mb_emit_byte (mb, CEE_LDIND_I);
7308 mono_mb_emit_ldloc (mb, index_var);
7309 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7312 mono_mb_emit_ldloc (mb, src_ptr);
7313 mono_mb_emit_byte (mb, CEE_LDIND_I);
7315 mono_mb_emit_icall (mb, conv_to_icall (conv));
7319 mono_mb_emit_ldloc (mb, src_ptr);
7320 mono_mb_emit_byte (mb, CEE_LDIND_I);
7322 mono_mb_emit_icall (mb, mono_marshal_free);
7325 else if (eklass == mono_defaults.string_class) {
7328 mono_mb_emit_ldloc (mb, src_ptr);
7329 mono_mb_emit_byte (mb, CEE_LDIND_I);
7331 mono_mb_emit_icall (mb, mono_marshal_free);
7336 /* set the src_ptr */
7337 mono_mb_emit_ldloc (mb, src_ptr);
7338 mono_mb_emit_stloc (mb, 0);
7341 mono_mb_emit_ldarg (mb, argnum);
7343 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7344 mono_mb_emit_ldloc (mb, index_var);
7345 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7346 mono_mb_emit_stloc (mb, 1);
7348 /* emit valuetype conversion code */
7349 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7353 mono_mb_emit_ldloc (mb, src_ptr);
7354 mono_mb_emit_stloc (mb, loc);
7355 mono_mb_emit_ldloc (mb, loc);
7357 emit_struct_free (mb, eklass, loc);
7361 mono_mb_emit_add_to_local (mb, index_var, 1);
7362 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7364 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7366 mono_mb_patch_branch (mb, label1);
7367 mono_mb_patch_branch (mb, label3);
7370 if (klass->element_class->blittable) {
7371 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7373 mono_mb_emit_ldarg (mb, argnum);
7374 mono_mb_emit_ldloc (mb, conv_arg);
7375 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7380 case MARSHAL_ACTION_PUSH:
7382 mono_mb_emit_ldloc_addr (mb, conv_arg);
7384 mono_mb_emit_ldloc (mb, conv_arg);
7387 case MARSHAL_ACTION_CONV_RESULT:
7388 /* fixme: we need conversions here */
7389 mono_mb_emit_stloc (mb, 3);
7392 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7394 guint32 label1, label2, label3;
7395 int index_var, src_ptr, loc, esize, param_num, num_elem;
7396 MonoMarshalConv conv;
7397 gboolean is_string = FALSE;
7399 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7400 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7403 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7404 mono_mb_emit_exception_marshal_directive (mb, msg);
7408 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7409 mono_mb_emit_exception_marshal_directive (mb, msg);
7412 if (spec->native != MONO_NATIVE_LPARRAY) {
7413 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7414 mono_mb_emit_exception_marshal_directive (mb, msg);
7418 /* FIXME: t is from the method which is wrapped, not the delegate type */
7419 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7421 param_num = spec->data.array_data.param_num;
7422 num_elem = spec->data.array_data.num_elem;
7423 if (spec->data.array_data.elem_mult == 0)
7424 /* param_num is not specified */
7427 if (param_num == -1) {
7428 if (num_elem <= 0) {
7429 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7430 mono_mb_emit_exception_marshal_directive (mb, msg);
7435 /* FIXME: Optimize blittable case */
7437 eklass = klass->element_class;
7438 if (eklass == mono_defaults.string_class) {
7440 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7442 else if (eklass == mono_defaults.stringbuilder_class) {
7444 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7449 mono_marshal_load_type_info (eklass);
7452 esize = sizeof (gpointer);
7454 esize = mono_class_native_size (eklass, NULL);
7455 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7456 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7458 mono_mb_emit_byte (mb, CEE_LDNULL);
7459 mono_mb_emit_stloc (mb, conv_arg);
7461 /* Check param index */
7462 if (param_num != -1) {
7463 if (param_num >= m->sig->param_count) {
7464 char *msg = g_strdup ("Array size control parameter index is out of range.");
7465 mono_mb_emit_exception_marshal_directive (mb, msg);
7468 switch (m->sig->params [param_num]->type) {
7481 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7482 mono_mb_emit_exception_marshal_directive (mb, msg);
7489 mono_mb_emit_ldarg (mb, argnum);
7490 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7492 mono_mb_emit_ldarg (mb, argnum);
7493 mono_mb_emit_stloc (mb, src_ptr);
7495 /* Create managed array */
7497 * The LPArray marshalling spec says that sometimes param_num starts
7498 * from 1, sometimes it starts from 0. But MS seems to allways start
7502 if (param_num == -1) {
7503 mono_mb_emit_icon (mb, num_elem);
7505 mono_mb_emit_ldarg (mb, param_num);
7507 mono_mb_emit_icon (mb, num_elem);
7508 mono_mb_emit_byte (mb, CEE_ADD);
7510 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7513 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7514 mono_mb_emit_stloc (mb, conv_arg);
7516 if (eklass->blittable) {
7517 mono_mb_emit_ldloc (mb, conv_arg);
7518 mono_mb_emit_byte (mb, CEE_CONV_I);
7519 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7520 mono_mb_emit_byte (mb, CEE_ADD);
7521 mono_mb_emit_ldarg (mb, argnum);
7522 mono_mb_emit_ldloc (mb, conv_arg);
7523 mono_mb_emit_byte (mb, CEE_LDLEN);
7524 mono_mb_emit_icon (mb, esize);
7525 mono_mb_emit_byte (mb, CEE_MUL);
7526 mono_mb_emit_byte (mb, CEE_PREFIX1);
7527 mono_mb_emit_byte (mb, CEE_CPBLK);
7531 /* Emit marshalling loop */
7532 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7533 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7534 mono_mb_emit_stloc (mb, index_var);
7535 label2 = mono_mb_get_label (mb);
7536 mono_mb_emit_ldloc (mb, index_var);
7537 mono_mb_emit_ldloc (mb, conv_arg);
7538 mono_mb_emit_byte (mb, CEE_LDLEN);
7539 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7541 /* Emit marshalling code */
7543 g_assert (conv != -1);
7545 mono_mb_emit_ldloc (mb, conv_arg);
7546 mono_mb_emit_ldloc (mb, index_var);
7548 mono_mb_emit_ldloc (mb, src_ptr);
7549 mono_mb_emit_byte (mb, CEE_LDIND_I);
7551 mono_mb_emit_icall (mb, conv_to_icall (conv));
7552 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7555 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7556 mono_mb_emit_exception_marshal_directive (mb, msg);
7560 mono_mb_emit_add_to_local (mb, index_var, 1);
7561 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7563 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7565 mono_mb_patch_branch (mb, label1);
7566 mono_mb_patch_branch (mb, label3);
7570 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7572 guint32 label1, label2, label3;
7573 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7574 MonoMarshalConv conv;
7575 gboolean is_string = FALSE;
7578 /* Already handled in CONV_IN */
7581 /* These are already checked in CONV_IN */
7582 g_assert (!t->byref);
7583 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7584 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7586 param_num = spec->data.array_data.param_num;
7587 num_elem = spec->data.array_data.num_elem;
7589 if (spec->data.array_data.elem_mult == 0)
7590 /* param_num is not specified */
7593 if (param_num == -1) {
7594 if (num_elem <= 0) {
7595 g_assert_not_reached ();
7599 /* FIXME: Optimize blittable case */
7601 eklass = klass->element_class;
7602 if (eklass == mono_defaults.string_class) {
7604 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7606 else if (eklass == mono_defaults.stringbuilder_class) {
7608 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7613 mono_marshal_load_type_info (eklass);
7616 esize = sizeof (gpointer);
7618 esize = mono_class_native_size (eklass, NULL);
7620 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7621 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7624 mono_mb_emit_ldloc (mb, conv_arg);
7625 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7627 mono_mb_emit_ldarg (mb, argnum);
7628 mono_mb_emit_stloc (mb, dest_ptr);
7630 if (eklass->blittable) {
7632 mono_mb_emit_ldarg (mb, argnum);
7634 mono_mb_emit_ldloc (mb, conv_arg);
7635 mono_mb_emit_byte (mb, CEE_CONV_I);
7636 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7637 mono_mb_emit_byte (mb, CEE_ADD);
7639 mono_mb_emit_ldloc (mb, conv_arg);
7640 mono_mb_emit_byte (mb, CEE_LDLEN);
7641 mono_mb_emit_icon (mb, esize);
7642 mono_mb_emit_byte (mb, CEE_MUL);
7643 mono_mb_emit_byte (mb, CEE_PREFIX1);
7644 mono_mb_emit_byte (mb, CEE_CPBLK);
7648 /* Emit marshalling loop */
7649 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7650 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7651 mono_mb_emit_stloc (mb, index_var);
7652 label2 = mono_mb_get_label (mb);
7653 mono_mb_emit_ldloc (mb, index_var);
7654 mono_mb_emit_ldloc (mb, conv_arg);
7655 mono_mb_emit_byte (mb, CEE_LDLEN);
7656 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7658 /* Emit marshalling code */
7660 g_assert (conv != -1);
7663 mono_mb_emit_ldloc (mb, dest_ptr);
7666 mono_mb_emit_ldloc (mb, conv_arg);
7667 mono_mb_emit_ldloc (mb, index_var);
7669 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7671 mono_mb_emit_icall (mb, conv_to_icall (conv));
7672 mono_mb_emit_byte (mb, CEE_STIND_I);
7675 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7676 mono_mb_emit_exception_marshal_directive (mb, msg);
7680 mono_mb_emit_add_to_local (mb, index_var, 1);
7681 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7683 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7685 mono_mb_patch_branch (mb, label1);
7686 mono_mb_patch_branch (mb, label3);
7690 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7692 guint32 label1, label2, label3;
7693 int index_var, src, dest, esize;
7694 MonoMarshalConv conv = -1;
7695 gboolean is_string = FALSE;
7697 g_assert (!t->byref);
7699 eklass = klass->element_class;
7701 mono_marshal_load_type_info (eklass);
7703 if (eklass == mono_defaults.string_class) {
7705 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7708 g_assert_not_reached ();
7712 esize = sizeof (gpointer);
7713 else if (eklass == mono_defaults.char_class)
7714 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7716 esize = mono_class_native_size (eklass, NULL);
7718 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7719 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7721 mono_mb_emit_stloc (mb, src);
7722 mono_mb_emit_ldloc (mb, src);
7723 mono_mb_emit_stloc (mb, 3);
7725 /* Check for null */
7726 mono_mb_emit_ldloc (mb, src);
7727 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7729 /* Allocate native array */
7730 mono_mb_emit_icon (mb, esize);
7731 mono_mb_emit_ldloc (mb, src);
7732 mono_mb_emit_byte (mb, CEE_LDLEN);
7734 if (eklass == mono_defaults.string_class) {
7735 /* Make the array bigger for the terminating null */
7736 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7737 mono_mb_emit_byte (mb, CEE_ADD);
7739 mono_mb_emit_byte (mb, CEE_MUL);
7740 mono_mb_emit_icall (mb, mono_marshal_alloc);
7741 mono_mb_emit_stloc (mb, dest);
7742 mono_mb_emit_ldloc (mb, dest);
7743 mono_mb_emit_stloc (mb, 3);
7745 /* Emit marshalling loop */
7746 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7747 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7748 mono_mb_emit_stloc (mb, index_var);
7749 label2 = mono_mb_get_label (mb);
7750 mono_mb_emit_ldloc (mb, index_var);
7751 mono_mb_emit_ldloc (mb, src);
7752 mono_mb_emit_byte (mb, CEE_LDLEN);
7753 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7755 /* Emit marshalling code */
7757 g_assert (conv != -1);
7760 mono_mb_emit_ldloc (mb, dest);
7763 mono_mb_emit_ldloc (mb, src);
7764 mono_mb_emit_ldloc (mb, index_var);
7766 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7768 mono_mb_emit_icall (mb, conv_to_icall (conv));
7769 mono_mb_emit_byte (mb, CEE_STIND_I);
7772 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7773 mono_mb_emit_exception_marshal_directive (mb, msg);
7777 mono_mb_emit_add_to_local (mb, index_var, 1);
7778 mono_mb_emit_add_to_local (mb, dest, esize);
7780 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7782 mono_mb_patch_branch (mb, label3);
7783 mono_mb_patch_branch (mb, label1);
7787 g_assert_not_reached ();
7794 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7795 MonoMarshalSpec *spec,
7796 int conv_arg, MonoType **conv_arg_type,
7797 MarshalAction action)
7799 MonoMethodBuilder *mb = m->mb;
7802 case MARSHAL_ACTION_CONV_IN: {
7803 MonoType *local_type;
7805 guint8 ldc_op = CEE_LDC_I4_1;
7808 local_type = &mono_defaults.int32_class->byval_arg;
7810 switch (spec->native) {
7811 case MONO_NATIVE_I1:
7812 case MONO_NATIVE_U1:
7813 local_type = &mono_defaults.byte_class->byval_arg;
7815 case MONO_NATIVE_VARIANTBOOL:
7816 local_type = &mono_defaults.int16_class->byval_arg;
7817 ldc_op = CEE_LDC_I4_M1;
7819 case MONO_NATIVE_BOOLEAN:
7820 local_type = &mono_defaults.int32_class->byval_arg;
7823 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7824 local_type = &mono_defaults.int32_class->byval_arg;
7829 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7831 *conv_arg_type = local_type;
7832 conv_arg = mono_mb_add_local (mb, local_type);
7834 mono_mb_emit_ldarg (mb, argnum);
7836 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7837 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7838 mono_mb_emit_byte (mb, ldc_op);
7839 mono_mb_emit_stloc (mb, conv_arg);
7840 mono_mb_patch_branch (mb, label_false);
7845 case MARSHAL_ACTION_CONV_OUT:
7847 int label_false, label_end;
7851 mono_mb_emit_ldarg (mb, argnum);
7852 mono_mb_emit_ldloc (mb, conv_arg);
7854 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7855 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7857 label_end = mono_mb_emit_branch (mb, CEE_BR);
7858 mono_mb_patch_branch (mb, label_false);
7859 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7860 mono_mb_patch_branch (mb, label_end);
7862 mono_mb_emit_byte (mb, CEE_STIND_I1);
7866 case MARSHAL_ACTION_PUSH:
7868 mono_mb_emit_ldloc_addr (mb, conv_arg);
7870 mono_mb_emit_ldloc (mb, conv_arg);
7872 mono_mb_emit_ldarg (mb, argnum);
7875 case MARSHAL_ACTION_CONV_RESULT:
7876 /* maybe we need to make sure that it fits within 8 bits */
7877 mono_mb_emit_stloc (mb, 3);
7880 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7881 MonoClass* conv_arg_class = mono_defaults.int32_class;
7882 guint8 ldop = CEE_LDIND_I4;
7883 int label_null, label_false;
7885 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7888 switch (spec->native) {
7889 case MONO_NATIVE_I1:
7890 case MONO_NATIVE_U1:
7891 conv_arg_class = mono_defaults.byte_class;
7892 ldop = CEE_LDIND_I1;
7894 case MONO_NATIVE_VARIANTBOOL:
7895 conv_arg_class = mono_defaults.int16_class;
7896 ldop = CEE_LDIND_I2;
7898 case MONO_NATIVE_BOOLEAN:
7901 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7906 *conv_arg_type = &conv_arg_class->this_arg;
7908 *conv_arg_type = &conv_arg_class->byval_arg;
7911 mono_mb_emit_ldarg (mb, argnum);
7915 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7916 mono_mb_emit_ldarg (mb, argnum);
7917 mono_mb_emit_byte (mb, ldop);
7921 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7922 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7923 mono_mb_emit_stloc (mb, conv_arg);
7924 mono_mb_patch_branch (mb, label_false);
7927 mono_mb_patch_branch (mb, label_null);
7931 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7932 guint8 stop = CEE_STIND_I4;
7933 guint8 ldc_op = CEE_LDC_I4_1;
7934 int label_null,label_false, label_end;;
7939 switch (spec->native) {
7940 case MONO_NATIVE_I1:
7941 case MONO_NATIVE_U1:
7942 stop = CEE_STIND_I1;
7944 case MONO_NATIVE_VARIANTBOOL:
7945 stop = CEE_STIND_I2;
7946 ldc_op = CEE_LDC_I4_M1;
7954 mono_mb_emit_ldarg (mb, argnum);
7955 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7957 mono_mb_emit_ldarg (mb, argnum);
7958 mono_mb_emit_ldloc (mb, conv_arg);
7960 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7961 mono_mb_emit_byte (mb, ldc_op);
7962 label_end = mono_mb_emit_branch (mb, CEE_BR);
7964 mono_mb_patch_branch (mb, label_false);
7965 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7966 mono_mb_patch_branch (mb, label_end);
7968 mono_mb_emit_byte (mb, stop);
7969 mono_mb_patch_branch (mb, label_null);
7974 g_assert_not_reached ();
7981 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7982 MonoMarshalSpec *spec, int conv_arg,
7983 MonoType **conv_arg_type, MarshalAction action)
7985 MonoMethodBuilder *mb = m->mb;
7988 case MARSHAL_ACTION_CONV_IN:
7989 /* MS seems to allow this in some cases, ie. bxc #158 */
7991 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7992 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7993 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7998 case MARSHAL_ACTION_PUSH:
7999 mono_mb_emit_ldarg (mb, argnum);
8002 case MARSHAL_ACTION_CONV_RESULT:
8003 /* no conversions necessary */
8004 mono_mb_emit_stloc (mb, 3);
8015 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8016 MonoMarshalSpec *spec, int conv_arg,
8017 MonoType **conv_arg_type, MarshalAction action)
8019 MonoMethodBuilder *mb = m->mb;
8022 case MARSHAL_ACTION_PUSH:
8023 /* fixme: dont know how to marshal that. We cant simply
8024 * convert it to a one byte UTF8 character, because an
8025 * unicode character may need more that one byte in UTF8 */
8026 mono_mb_emit_ldarg (mb, argnum);
8029 case MARSHAL_ACTION_CONV_RESULT:
8030 /* fixme: we need conversions here */
8031 mono_mb_emit_stloc (mb, 3);
8042 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8043 MonoMarshalSpec *spec, int conv_arg,
8044 MonoType **conv_arg_type, MarshalAction action)
8046 MonoMethodBuilder *mb = m->mb;
8049 case MARSHAL_ACTION_PUSH:
8050 mono_mb_emit_ldarg (mb, argnum);
8053 case MARSHAL_ACTION_CONV_RESULT:
8054 /* no conversions necessary */
8055 mono_mb_emit_stloc (mb, 3);
8066 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8067 MonoMarshalSpec *spec, int conv_arg,
8068 MonoType **conv_arg_type, MarshalAction action)
8070 /* Ensure that we have marshalling info for this param */
8071 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8074 /* Not JIT support, no need to generate correct IL */
8077 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8078 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8080 if (spec && spec->native == MONO_NATIVE_ASANY)
8081 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8084 case MONO_TYPE_VALUETYPE:
8085 if (t->data.klass == mono_defaults.handleref_class)
8086 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8088 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8089 case MONO_TYPE_STRING:
8090 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8091 case MONO_TYPE_CLASS:
8092 case MONO_TYPE_OBJECT:
8093 if (spec && spec->native == MONO_NATIVE_STRUCT)
8094 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8097 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8098 spec->native == MONO_NATIVE_IDISPATCH ||
8099 spec->native == MONO_NATIVE_INTERFACE))
8100 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8101 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
8102 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
8103 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
8104 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8107 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8108 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8109 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8111 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8112 case MONO_TYPE_ARRAY:
8113 case MONO_TYPE_SZARRAY:
8114 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8115 case MONO_TYPE_BOOLEAN:
8116 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8118 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8119 case MONO_TYPE_CHAR:
8120 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8133 case MONO_TYPE_FNPTR:
8134 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8135 case MONO_TYPE_GENERICINST:
8136 if (mono_type_generic_inst_is_valuetype (t))
8137 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8139 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8147 * mono_marshal_emit_native_wrapper:
8148 * @image: the image to use for looking up custom marshallers
8149 * @sig: The signature of the native function
8150 * @piinfo: Marshalling information
8151 * @mspecs: Marshalling information
8152 * @aot: whenever the created method will be compiled by the AOT compiler
8153 * @method: if non-NULL, the pinvoke method to call
8154 * @check_exceptions: Whenever to check for pending exceptions after the native call
8155 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
8157 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8160 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions, gboolean func_param)
8162 EmitMarshalContext m;
8163 MonoMethodSignature *csig;
8165 int i, argnum, *tmp_locals;
8166 int type, param_shift = 0;
8167 static MonoMethodSignature *get_last_error_sig = NULL;
8172 /* we copy the signature, so that we can set pinvoke to 0 */
8174 /* The function address is passed as the first argument */
8175 g_assert (!sig->hasthis);
8178 csig = signature_dup (mb->method->klass->image, sig);
8186 /* we allocate local for use with emit_struct_conv() */
8187 /* allocate local 0 (pointer) src_ptr */
8188 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8189 /* allocate local 1 (pointer) dst_ptr */
8190 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8191 /* allocate local 2 (boolean) delete_old */
8192 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8194 /* delete_old = FALSE */
8195 mono_mb_emit_icon (mb, 0);
8196 mono_mb_emit_stloc (mb, 2);
8198 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8199 /* allocate local 3 to store the return value */
8200 mono_mb_add_local (mb, sig->ret);
8203 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8204 /* Return type custom marshaling */
8206 * Since we can't determine the return type of the unmanaged function,
8207 * we assume it returns a pointer, and pass that pointer to
8208 * MarshalNativeToManaged.
8210 csig->ret = &mono_defaults.int_class->byval_arg;
8213 /* we first do all conversions */
8214 tmp_locals = alloca (sizeof (int) * sig->param_count);
8215 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8217 for (i = 0; i < sig->param_count; i ++) {
8218 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8221 /* push all arguments */
8224 mono_mb_emit_byte (mb, CEE_LDARG_0);
8226 for (i = 0; i < sig->param_count; i++) {
8227 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8230 /* call the native method */
8232 mono_mb_emit_byte (mb, CEE_LDARG_0);
8233 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
8234 mono_mb_emit_byte (mb, CEE_LDIND_I);
8235 mono_mb_emit_calli (mb, csig);
8236 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8238 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8240 g_assert_not_reached ();
8245 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8247 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8248 mono_mb_emit_calli (mb, csig);
8250 mono_mb_emit_native_call (mb, csig, func);
8254 /* Set LastError if needed */
8255 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8256 if (!get_last_error_sig) {
8257 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8258 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8259 get_last_error_sig->pinvoke = 1;
8264 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8265 * clobber its value.
8267 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8268 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8270 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8274 /* convert the result */
8275 if (!sig->ret->byref) {
8276 MonoMarshalSpec *spec = mspecs [0];
8277 type = sig->ret->type;
8279 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8280 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8285 case MONO_TYPE_VOID:
8287 case MONO_TYPE_VALUETYPE:
8288 klass = sig->ret->data.klass;
8289 if (klass->enumtype) {
8290 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8293 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8307 case MONO_TYPE_FNPTR:
8308 case MONO_TYPE_STRING:
8309 case MONO_TYPE_CLASS:
8310 case MONO_TYPE_OBJECT:
8311 case MONO_TYPE_BOOLEAN:
8312 case MONO_TYPE_ARRAY:
8313 case MONO_TYPE_SZARRAY:
8314 case MONO_TYPE_CHAR:
8316 case MONO_TYPE_GENERICINST:
8317 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8319 case MONO_TYPE_TYPEDBYREF:
8321 g_warning ("return type 0x%02x unknown", sig->ret->type);
8322 g_assert_not_reached ();
8326 mono_mb_emit_stloc (mb, 3);
8330 * Need to call this after converting the result since MONO_VTADDR needs
8331 * to be adjacent to the call instruction.
8333 if (check_exceptions)
8334 emit_thread_interrupt_checkpoint (mb);
8336 /* we need to convert byref arguments back and free string arrays */
8337 for (i = 0; i < sig->param_count; i++) {
8338 MonoType *t = sig->params [i];
8339 MonoMarshalSpec *spec = mspecs [i + 1];
8341 argnum = i + param_shift;
8343 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8344 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8349 case MONO_TYPE_STRING:
8350 case MONO_TYPE_VALUETYPE:
8351 case MONO_TYPE_CLASS:
8352 case MONO_TYPE_OBJECT:
8353 case MONO_TYPE_SZARRAY:
8354 case MONO_TYPE_BOOLEAN:
8355 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8360 if (!MONO_TYPE_IS_VOID(sig->ret))
8361 mono_mb_emit_ldloc (mb, 3);
8363 mono_mb_emit_byte (mb, CEE_RET);
8366 G_GNUC_UNUSED static void
8367 code_for (MonoMethod *method) {
8368 MonoMethodHeader *header = mono_method_get_header (method);
8369 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
8373 * mono_marshal_get_native_wrapper:
8374 * @method: The MonoMethod to wrap.
8375 * @check_exceptions: Whenever to check for pending exceptions
8377 * generates IL code for the pinvoke wrapper (the generated method
8378 * calls the unmanaged code in piinfo->addr)
8379 * The wrapper info for the wrapper is a WrapperInfo structure.
8382 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8384 MonoMethodSignature *sig, *csig;
8385 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8386 MonoMethodBuilder *mb;
8387 MonoMarshalSpec **mspecs;
8390 gboolean pinvoke = FALSE;
8393 const char *exc_class = "MissingMethodException";
8394 const char *exc_arg = NULL;
8397 g_assert (method != NULL);
8398 g_assert (mono_method_signature (method)->pinvoke);
8401 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8403 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8404 if ((res = mono_marshal_find_in_cache (cache, method)))
8407 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8409 return mono_cominterop_get_native_wrapper (method);
8411 g_assert_not_reached ();
8415 sig = mono_method_signature (method);
8417 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8418 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8421 if (!piinfo->addr) {
8423 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8424 exc_arg = "Method contains unsupported native code";
8426 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8428 piinfo->addr = mono_lookup_internal_call (method);
8431 /* hack - redirect certain string constructors to CreateString */
8432 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8433 g_assert (!pinvoke);
8434 g_assert (method->string_ctor);
8435 g_assert (sig->hasthis);
8437 /* CreateString returns a value */
8438 csig = signature_dup (method->klass->image, sig);
8439 csig->ret = &mono_defaults.string_class->byval_arg;
8443 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8444 if (!strcmp ("CreateString", res->name) &&
8445 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8448 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8449 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8451 /* create a wrapper to preserve .ctor in stack trace */
8452 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8454 mono_mb_emit_byte (mb, CEE_LDARG_0);
8455 for (i = 1; i <= csig->param_count; i++)
8456 mono_mb_emit_ldarg (mb, i);
8457 mono_mb_emit_managed_call (mb, res, NULL);
8458 mono_mb_emit_byte (mb, CEE_RET);
8460 /* use native_wrapper_cache because internal calls are looked up there */
8461 res = mono_mb_create_and_cache (cache, method,
8462 mb, csig, csig->param_count + 1);
8466 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRING_CTOR);
8467 info->d.string_ctor.method = method;
8469 mono_marshal_set_wrapper_info (res, info);
8475 /* exception will be thrown */
8476 piinfo->addr = NULL;
8477 g_warning ("cannot find CreateString for .ctor");
8480 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8482 mb->method->save_lmf = 1;
8485 * In AOT mode and embedding scenarios, it is possible that the icall is not
8486 * registered in the runtime doing the AOT compilation.
8488 if (!piinfo->addr && !aot) {
8489 mono_mb_emit_exception (mb, exc_class, exc_arg);
8490 csig = signature_dup (method->klass->image, sig);
8492 res = mono_mb_create_and_cache (cache, method,
8493 mb, csig, csig->param_count + 16);
8498 /* internal calls: we simply push all arguments and call the method (no conversions) */
8499 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8501 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
8503 csig = signature_dup (method->klass->image, sig);
8505 /* hack - string constructors returns a value */
8506 if (method->string_ctor)
8507 csig->ret = &mono_defaults.string_class->byval_arg;
8513 * Add a null check since public icalls can be called with 'call' which
8514 * does no such check.
8516 mono_mb_emit_byte (mb, CEE_LDARG_0);
8517 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8518 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8519 mono_mb_patch_branch (mb, pos);
8521 mono_mb_emit_byte (mb, CEE_LDARG_0);
8524 for (i = 0; i < sig->param_count; i++)
8525 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8528 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8529 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8530 mono_mb_emit_calli (mb, csig);
8532 g_assert (piinfo->addr);
8533 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8535 if (check_exceptions)
8536 emit_thread_interrupt_checkpoint (mb);
8537 mono_mb_emit_byte (mb, CEE_RET);
8539 csig = signature_dup (method->klass->image, csig);
8541 res = mono_mb_create_and_cache (cache, method,
8542 mb, csig, csig->param_count + 16);
8544 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8545 info->d.managed_to_native.method = method;
8546 mono_marshal_set_wrapper_info (res, info);
8554 g_assert (piinfo->addr);
8556 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8557 mono_method_get_marshal_info (method, mspecs);
8559 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8561 csig = signature_dup (method->klass->image, sig);
8563 res = mono_mb_create_and_cache (cache, method,
8564 mb, csig, csig->param_count + 16);
8567 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8568 info->d.managed_to_native.method = method;
8569 mono_marshal_set_wrapper_info (res, info);
8571 for (i = sig->param_count; i >= 0; i--)
8573 mono_metadata_free_marshal_spec (mspecs [i]);
8576 /* code_for (res); */
8582 * mono_marshal_get_native_func_wrapper:
8583 * @image: The image to use for memory allocation and for looking up custom marshallers.
8584 * @sig: The signature of the function
8585 * @func: The native function to wrap
8587 * Returns a wrapper method around native functions, similar to the pinvoke
8591 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8592 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8594 MonoMethodSignature *csig;
8596 MonoMethodBuilder *mb;
8601 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8602 if ((res = mono_marshal_find_in_cache (cache, func)))
8605 name = g_strdup_printf ("wrapper_native_%p", func);
8606 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8607 mb->method->save_lmf = 1;
8609 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8611 csig = signature_dup (image, sig);
8613 res = mono_mb_create_and_cache (cache, func,
8614 mb, csig, csig->param_count + 16);
8617 mono_marshal_set_wrapper_info (res, NULL);
8623 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8627 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8629 MonoMethodSignature *sig, *csig;
8630 MonoMethodBuilder *mb;
8635 MonoMethodPInvoke mpiinfo;
8636 MonoMethodPInvoke *piinfo = &mpiinfo;
8637 MonoMarshalSpec **mspecs;
8638 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8639 MonoImage *image = invoke->klass->image;
8642 // FIXME: include UnmanagedFunctionPointerAttribute info
8645 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8647 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8648 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8651 memset (&mpiinfo, 0, sizeof (mpiinfo));
8652 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8654 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8655 mono_method_get_marshal_info (invoke, mspecs);
8656 /* Freed below so don't alloc from mempool */
8657 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8660 name = g_strdup_printf ("wrapper_aot_native");
8661 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8662 mb->method->save_lmf = 1;
8664 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8666 g_assert (!sig->hasthis);
8667 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
8669 res = mono_mb_create_and_cache (cache, invoke,
8670 mb, csig, csig->param_count + 16);
8673 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8674 info->d.managed_to_native.method = invoke;
8676 mono_marshal_set_wrapper_info (res, info);
8678 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8680 mono_metadata_free_marshal_spec (mspecs [i]);
8688 * mono_marshal_emit_managed_wrapper:
8690 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8691 * the delegate which wraps the managed method to be called. For closed delegates,
8692 * it could have fewer parameters than the method it wraps.
8693 * THIS_LOC is the memory location where the target of the delegate is stored.
8696 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8698 MonoMethodSignature *sig, *csig;
8700 gboolean closed = FALSE;
8705 /* allocate local 0 (pointer) src_ptr */
8706 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8707 /* allocate local 1 (pointer) dst_ptr */
8708 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8709 /* allocate local 2 (boolean) delete_old */
8710 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8712 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8713 /* Closed delegate */
8714 g_assert (sig->param_count == invoke_sig->param_count + 1);
8716 /* Use a new signature without the first argument */
8717 sig = mono_metadata_signature_dup (sig);
8718 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8719 sig->param_count --;
8722 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8723 /* allocate local 3 to store the return value */
8724 mono_mb_add_local (mb, sig->ret);
8727 mono_mb_emit_icon (mb, 0);
8728 mono_mb_emit_stloc (mb, 2);
8731 * Might need to attach the thread to the JIT or change the
8732 * domain for the callback.
8734 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8735 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8737 /* we first do all conversions */
8738 tmp_locals = alloca (sizeof (int) * sig->param_count);
8739 for (i = 0; i < sig->param_count; i ++) {
8740 MonoType *t = sig->params [i];
8743 case MONO_TYPE_OBJECT:
8744 case MONO_TYPE_CLASS:
8745 case MONO_TYPE_VALUETYPE:
8746 case MONO_TYPE_ARRAY:
8747 case MONO_TYPE_SZARRAY:
8748 case MONO_TYPE_STRING:
8749 case MONO_TYPE_BOOLEAN:
8750 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8759 emit_thread_interrupt_checkpoint (mb);
8762 if (target_handle) {
8763 mono_mb_emit_icon (mb, (gint32)target_handle);
8764 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8767 g_assert_not_reached ();
8769 } else if (closed) {
8770 mono_mb_emit_icon (mb, (gint32)target_handle);
8771 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8774 for (i = 0; i < sig->param_count; i++) {
8775 MonoType *t = sig->params [i];
8777 if (tmp_locals [i]) {
8779 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8781 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8784 mono_mb_emit_ldarg (mb, i);
8787 mono_mb_emit_managed_call (mb, method, NULL);
8789 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8790 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8791 } else if (!sig->ret->byref) {
8792 switch (sig->ret->type) {
8793 case MONO_TYPE_VOID:
8795 case MONO_TYPE_BOOLEAN:
8798 case MONO_TYPE_CHAR:
8810 case MONO_TYPE_OBJECT:
8811 mono_mb_emit_stloc (mb, 3);
8813 case MONO_TYPE_STRING:
8814 csig->ret = &mono_defaults.int_class->byval_arg;
8815 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8817 case MONO_TYPE_VALUETYPE:
8818 case MONO_TYPE_CLASS:
8819 case MONO_TYPE_SZARRAY:
8820 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8823 g_warning ("return type 0x%02x unknown", sig->ret->type);
8824 g_assert_not_reached ();
8827 mono_mb_emit_stloc (mb, 3);
8830 /* Convert byref arguments back */
8831 for (i = 0; i < sig->param_count; i ++) {
8832 MonoType *t = sig->params [i];
8833 MonoMarshalSpec *spec = mspecs [i + 1];
8835 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8836 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8838 else if (t->byref) {
8840 case MONO_TYPE_CLASS:
8841 case MONO_TYPE_VALUETYPE:
8842 case MONO_TYPE_OBJECT:
8843 case MONO_TYPE_STRING:
8844 case MONO_TYPE_BOOLEAN:
8845 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8849 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8850 /* The [Out] information is encoded in the delegate signature */
8852 case MONO_TYPE_SZARRAY:
8853 case MONO_TYPE_CLASS:
8854 case MONO_TYPE_VALUETYPE:
8855 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8858 g_assert_not_reached ();
8863 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8864 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8866 if (m->retobj_var) {
8867 mono_mb_emit_ldloc (mb, m->retobj_var);
8868 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8869 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8872 if (!MONO_TYPE_IS_VOID(sig->ret))
8873 mono_mb_emit_ldloc (mb, 3);
8874 mono_mb_emit_byte (mb, CEE_RET);
8883 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8885 MonoMethodSignature *sig;
8890 * Under windows, delegates passed to native code must use the STDCALL
8891 * calling convention.
8893 csig->call_convention = MONO_CALL_STDCALL;
8896 sig = mono_method_signature (method);
8898 /* Change default calling convention if needed */
8899 /* Why is this a modopt ? */
8900 if (sig->ret && sig->ret->num_mods) {
8901 for (i = 0; i < sig->ret->num_mods; ++i) {
8902 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8903 g_assert (cmod_class);
8904 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8905 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8906 csig->call_convention = MONO_CALL_C;
8907 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8908 csig->call_convention = MONO_CALL_STDCALL;
8909 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8910 csig->call_convention = MONO_CALL_FASTCALL;
8911 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8912 csig->call_convention = MONO_CALL_THISCALL;
8919 * generates IL code to call managed methods from unmanaged code
8920 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8923 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8925 static MonoClass *UnmanagedFunctionPointerAttribute;
8926 MonoMethodSignature *sig, *csig, *invoke_sig;
8927 MonoMethodBuilder *mb;
8928 MonoMethod *res, *invoke;
8929 MonoMarshalSpec **mspecs;
8930 MonoMethodPInvoke piinfo;
8933 EmitMarshalContext m;
8935 g_assert (method != NULL);
8936 g_assert (!mono_method_signature (method)->pinvoke);
8939 * FIXME: Should cache the method+delegate type pair, since the same method
8940 * could be called with different delegates, thus different marshalling
8943 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8944 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8947 invoke = mono_get_delegate_invoke (delegate_klass);
8948 invoke_sig = mono_method_signature (invoke);
8950 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8951 mono_method_get_marshal_info (invoke, mspecs);
8953 sig = mono_method_signature (method);
8955 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8957 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8958 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8960 /* we copy the signature, so that we can modify it */
8962 /* Need to free this later */
8963 csig = mono_metadata_signature_dup (invoke_sig);
8965 csig = signature_dup (method->klass->image, invoke_sig);
8974 m.image = method->klass->image;
8976 mono_marshal_set_callconv_from_modopt (invoke, csig);
8978 /* Handle the UnmanagedFunctionPointerAttribute */
8979 if (!UnmanagedFunctionPointerAttribute)
8980 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8982 /* The attribute is only available in Net 2.0 */
8983 if (UnmanagedFunctionPointerAttribute) {
8984 MonoCustomAttrInfo *cinfo;
8985 MonoCustomAttrEntry *attr;
8988 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8989 * contents of the attribute without constructing it, as that might not be
8990 * possible when running in cross-compiling mode.
8992 cinfo = mono_custom_attrs_from_class (delegate_klass);
8995 for (i = 0; i < cinfo->num_attrs; ++i) {
8996 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8997 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8998 attr = &cinfo->attrs [i];
9004 MonoArray *typed_args, *named_args;
9005 CattrNamedArg *arginfo;
9009 MonoBoolean set_last_error = 0;
9010 MonoBoolean best_fit_mapping = 0;
9011 MonoBoolean throw_on_unmappable = 0;
9013 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
9015 g_assert (mono_array_length (typed_args) == 1);
9018 o = mono_array_get (typed_args, MonoObject*, 0);
9019 call_conv = *(gint32*)mono_object_unbox (o);
9022 for (i = 0; i < mono_array_length (named_args); ++i) {
9023 CattrNamedArg *narg = &arginfo [i];
9025 o = mono_array_get (named_args, MonoObject*, i);
9027 g_assert (narg->field);
9028 if (!strcmp (narg->field->name, "CharSet")) {
9029 charset = *(gint32*)mono_object_unbox (o);
9030 } else if (!strcmp (narg->field->name, "SetLastError")) {
9031 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
9032 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
9033 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
9034 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
9035 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
9037 g_assert_not_reached ();
9043 memset (&piinfo, 0, sizeof (piinfo));
9045 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
9047 csig->call_convention = call_conv - 1;
9050 if (cinfo && !cinfo->cached)
9051 mono_custom_attrs_free (cinfo);
9054 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
9056 if (!target_handle) {
9059 res = mono_mb_create_and_cache (cache, method,
9060 mb, csig, sig->param_count + 16);
9061 // FIXME: Associate it with the method+delegate_klass pair
9062 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9063 info->d.native_to_managed.method = method;
9064 info->d.native_to_managed.klass = delegate_klass;
9065 mono_marshal_set_wrapper_info (res, info);
9068 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9072 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9074 mono_metadata_free_marshal_spec (mspecs [i]);
9077 /* code_for (res); */
9083 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9086 MonoMethodSignature *sig;
9087 MonoMethodBuilder *mb;
9092 method = mono_get_method (image, token, NULL);
9095 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9096 MonoMethodSignature *csig;
9097 MonoMarshalSpec **mspecs;
9098 EmitMarshalContext m;
9100 sig = mono_method_signature (method);
9101 g_assert (!sig->hasthis);
9103 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9104 mono_method_get_marshal_info (method, mspecs);
9106 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9107 csig = signature_dup (image, sig);
9118 mono_marshal_set_callconv_from_modopt (method, csig);
9120 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9122 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9125 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9128 for (i = sig->param_count; i >= 0; i--)
9130 mono_metadata_free_marshal_spec (mspecs [i]);
9133 return mono_compile_method (method);
9136 sig = mono_method_signature (method);
9137 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9139 param_count = sig->param_count + sig->hasthis;
9140 for (i = 0; i < param_count; i++)
9141 mono_mb_emit_ldarg (mb, i);
9143 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9144 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9146 mono_mb_emit_op (mb, CEE_CALL, method);
9147 mono_mb_emit_byte (mb, CEE_RET);
9150 method = mono_mb_create_method (mb, sig, param_count);
9153 return mono_compile_method (method);
9156 static MonoReflectionType *
9157 type_from_handle (MonoType *handle)
9159 MonoDomain *domain = mono_domain_get ();
9160 MonoClass *klass = mono_class_from_mono_type (handle);
9162 MONO_ARCH_SAVE_REGS;
9164 mono_class_init (klass);
9165 return mono_type_get_object (domain, handle);
9169 * This does the equivalent of mono_object_castclass_with_cache.
9170 * The wrapper info for the wrapper is a WrapperInfo structure.
9173 mono_marshal_get_castclass_with_cache (void)
9175 static MonoMethod *cached;
9177 MonoMethodBuilder *mb;
9178 MonoMethodSignature *sig;
9179 int return_null_pos, cache_miss_pos, invalid_cast_pos;
9185 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9186 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9187 sig->params [0] = &mono_defaults.object_class->byval_arg;
9188 sig->params [1] = &mono_defaults.int_class->byval_arg;
9189 sig->params [2] = &mono_defaults.int_class->byval_arg;
9190 sig->ret = &mono_defaults.object_class->byval_arg;
9193 /* allocate local 0 (pointer) obj_vtable */
9194 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9197 mono_mb_emit_ldarg (mb, 0);
9198 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9200 /*obj_vtable = obj->vtable;*/
9201 mono_mb_emit_ldarg (mb, 0);
9202 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9203 mono_mb_emit_byte (mb, CEE_LDIND_I);
9204 mono_mb_emit_stloc (mb, 0);
9207 mono_mb_emit_ldarg (mb, 2);
9208 mono_mb_emit_byte (mb, CEE_LDIND_I);
9209 mono_mb_emit_ldloc (mb, 0);
9211 /*if (*cache == obj_vtable)*/
9212 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9215 mono_mb_emit_ldarg (mb, 0);
9216 mono_mb_emit_byte (mb, CEE_RET);
9218 mono_mb_patch_branch (mb, cache_miss_pos);
9219 /*if (mono_object_isinst (obj, klass)) */
9220 mono_mb_emit_ldarg (mb, 0);
9221 mono_mb_emit_ldarg (mb, 1);
9222 mono_mb_emit_icall (mb, mono_object_isinst);
9223 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9225 /**cache = obj_vtable;*/
9226 mono_mb_emit_ldarg (mb, 2);
9227 mono_mb_emit_ldloc (mb, 0);
9228 mono_mb_emit_byte (mb, CEE_STIND_I);
9231 mono_mb_emit_ldarg (mb, 0);
9232 mono_mb_emit_byte (mb, CEE_RET);
9235 mono_mb_patch_branch (mb, invalid_cast_pos);
9236 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9239 mono_mb_patch_branch (mb, return_null_pos);
9240 mono_mb_emit_byte (mb, CEE_LDNULL);
9241 mono_mb_emit_byte (mb, CEE_RET);
9243 res = mono_mb_create_method (mb, sig, 8);
9244 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9245 mono_marshal_set_wrapper_info (res, info);
9248 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9249 mono_free_method (res);
9250 mono_metadata_free_method_signature (sig);
9258 * This does the equivalent of mono_object_isinst_with_cache.
9259 * The wrapper info for the wrapper is a WrapperInfo structure.
9262 mono_marshal_get_isinst_with_cache (void)
9264 static MonoMethod *cached;
9266 MonoMethodBuilder *mb;
9267 MonoMethodSignature *sig;
9268 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9274 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9275 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9276 sig->params [0] = &mono_defaults.object_class->byval_arg;
9277 sig->params [1] = &mono_defaults.int_class->byval_arg;
9278 sig->params [2] = &mono_defaults.int_class->byval_arg;
9279 sig->ret = &mono_defaults.object_class->byval_arg;
9282 /* allocate local 0 (pointer) obj_vtable */
9283 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9284 /* allocate local 1 (pointer) cached_vtable */
9285 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9288 mono_mb_emit_ldarg (mb, 0);
9289 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9291 /*obj_vtable = obj->vtable;*/
9292 mono_mb_emit_ldarg (mb, 0);
9293 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9294 mono_mb_emit_byte (mb, CEE_LDIND_I);
9295 mono_mb_emit_stloc (mb, 0);
9297 /* cached_vtable = *cache*/
9298 mono_mb_emit_ldarg (mb, 2);
9299 mono_mb_emit_byte (mb, CEE_LDIND_I);
9300 mono_mb_emit_stloc (mb, 1);
9302 mono_mb_emit_ldloc (mb, 1);
9303 mono_mb_emit_byte (mb, CEE_LDC_I4);
9304 mono_mb_emit_i4 (mb, ~0x1);
9305 mono_mb_emit_byte (mb, CEE_CONV_U);
9306 mono_mb_emit_byte (mb, CEE_AND);
9307 mono_mb_emit_ldloc (mb, 0);
9308 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9309 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9311 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9312 mono_mb_emit_ldloc (mb, 1);
9313 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9314 mono_mb_emit_byte (mb, CEE_CONV_U);
9315 mono_mb_emit_byte (mb, CEE_AND);
9316 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9319 mono_mb_emit_ldarg (mb, 0);
9320 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9323 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9324 mono_mb_emit_byte (mb, CEE_LDNULL);
9326 mono_mb_patch_branch (mb, cache_hit_pos);
9327 mono_mb_emit_byte (mb, CEE_RET);
9329 mono_mb_patch_branch (mb, cache_miss_pos);
9330 /*if (mono_object_isinst (obj, klass)) */
9331 mono_mb_emit_ldarg (mb, 0);
9332 mono_mb_emit_ldarg (mb, 1);
9333 mono_mb_emit_icall (mb, mono_object_isinst);
9334 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9336 /**cache = obj_vtable;*/
9337 mono_mb_emit_ldarg (mb, 2);
9338 mono_mb_emit_ldloc (mb, 0);
9339 mono_mb_emit_byte (mb, CEE_STIND_I);
9342 mono_mb_emit_ldarg (mb, 0);
9343 mono_mb_emit_byte (mb, CEE_RET);
9346 mono_mb_patch_branch (mb, not_an_instance_pos);
9347 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9348 mono_mb_emit_ldarg (mb, 2);
9349 /*obj_vtable | 0x1*/
9350 mono_mb_emit_ldloc (mb, 0);
9351 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9352 mono_mb_emit_byte (mb, CEE_CONV_U);
9353 mono_mb_emit_byte (mb, CEE_OR);
9356 mono_mb_emit_byte (mb, CEE_STIND_I);
9359 mono_mb_patch_branch (mb, return_null_pos);
9360 mono_mb_emit_byte (mb, CEE_LDNULL);
9361 mono_mb_emit_byte (mb, CEE_RET);
9363 res = mono_mb_create_method (mb, sig, 8);
9364 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9365 mono_marshal_set_wrapper_info (res, info);
9368 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9369 mono_free_method (res);
9370 mono_metadata_free_method_signature (sig);
9378 * mono_marshal_get_isinst:
9379 * @klass: the type of the field
9381 * This method generates a function which can be used to check if an object is
9382 * an instance of the given type, icluding the case where the object is a proxy.
9383 * The generated function has the following signature:
9384 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9387 mono_marshal_get_isinst (MonoClass *klass)
9389 static MonoMethodSignature *isint_sig = NULL;
9392 int pos_was_ok, pos_failed, pos_end, pos_end2;
9394 MonoMethodBuilder *mb;
9396 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9397 if ((res = mono_marshal_find_in_cache (cache, klass)))
9401 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9402 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9403 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9404 isint_sig->pinvoke = 0;
9407 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9408 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9411 mb->method->save_lmf = 1;
9413 /* check if the object is a proxy that needs special cast */
9414 mono_mb_emit_ldarg (mb, 0);
9415 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9416 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9418 /* The result of MONO_ISINST can be:
9419 0) the type check succeeded
9420 1) the type check did not succeed
9421 2) a CanCastTo call is needed */
9423 mono_mb_emit_byte (mb, CEE_DUP);
9424 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9426 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9427 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9429 /* get the real proxy from the transparent proxy*/
9431 mono_mb_emit_ldarg (mb, 0);
9432 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9433 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9437 mono_mb_patch_branch (mb, pos_failed);
9438 mono_mb_emit_byte (mb, CEE_LDNULL);
9439 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9443 mono_mb_patch_branch (mb, pos_was_ok);
9444 mono_mb_emit_byte (mb, CEE_POP);
9445 mono_mb_emit_ldarg (mb, 0);
9449 mono_mb_patch_branch (mb, pos_end);
9450 mono_mb_patch_branch (mb, pos_end2);
9451 mono_mb_emit_byte (mb, CEE_RET);
9453 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9460 * mono_marshal_get_castclass:
9461 * @klass: the type of the field
9463 * This method generates a function which can be used to cast an object to
9464 * an instance of the given type, icluding the case where the object is a proxy.
9465 * The generated function has the following signature:
9466 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9467 * The wrapper info for the wrapper is a WrapperInfo structure.
9470 mono_marshal_get_castclass (MonoClass *klass)
9472 static MonoMethodSignature *castclass_sig = NULL;
9475 int pos_was_ok, pos_was_ok2;
9477 MonoMethodBuilder *mb;
9480 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9481 if ((res = mono_marshal_find_in_cache (cache, klass)))
9484 if (!castclass_sig) {
9485 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9486 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9487 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9488 castclass_sig->pinvoke = 0;
9491 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9492 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9495 mb->method->save_lmf = 1;
9497 /* check if the object is a proxy that needs special cast */
9498 mono_mb_emit_ldarg (mb, 0);
9499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9500 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9502 /* The result of MONO_ISINST can be:
9503 0) the cast is valid
9504 1) cast of unknown proxy type
9505 or an exception if the cast is is invalid
9508 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9510 /* get the real proxy from the transparent proxy*/
9512 mono_mb_emit_ldarg (mb, 0);
9513 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9514 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9517 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9520 mono_mb_patch_branch (mb, pos_was_ok);
9521 mono_mb_patch_branch (mb, pos_was_ok2);
9522 mono_mb_emit_ldarg (mb, 0);
9525 mono_mb_emit_byte (mb, CEE_RET);
9527 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9530 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9531 mono_marshal_set_wrapper_info (res, info);
9537 mono_marshal_get_proxy_cancast (MonoClass *klass)
9539 static MonoMethodSignature *isint_sig = NULL;
9542 int pos_failed, pos_end;
9543 char *name, *klass_name;
9544 MonoMethod *can_cast_to;
9545 MonoMethodDesc *desc;
9546 MonoMethodBuilder *mb;
9548 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9549 if ((res = mono_marshal_find_in_cache (cache, klass)))
9553 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9554 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9555 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9556 isint_sig->pinvoke = 0;
9559 klass_name = mono_type_full_name (&klass->byval_arg);
9560 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9561 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9562 g_free (klass_name);
9565 mb->method->save_lmf = 1;
9567 /* get the real proxy from the transparent proxy*/
9568 mono_mb_emit_ldarg (mb, 0);
9569 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9570 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9572 /* get the reflection type from the type handle */
9573 mono_mb_emit_ptr (mb, &klass->byval_arg);
9574 mono_mb_emit_icall (mb, type_from_handle);
9576 mono_mb_emit_ldarg (mb, 0);
9578 /* make the call to CanCastTo (type, ob) */
9579 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9580 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9581 g_assert (can_cast_to);
9582 mono_method_desc_free (desc);
9583 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9585 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9587 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9588 mono_mb_emit_ptr (mb, &klass->byval_arg);
9589 mono_mb_emit_icall (mb, type_from_handle);
9590 mono_mb_emit_ldarg (mb, 0);
9592 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9593 emit_thread_interrupt_checkpoint (mb);
9595 mono_mb_emit_ldarg (mb, 0);
9596 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9600 mono_mb_patch_branch (mb, pos_failed);
9601 mono_mb_emit_byte (mb, CEE_LDNULL);
9605 mono_mb_patch_branch (mb, pos_end);
9606 mono_mb_emit_byte (mb, CEE_RET);
9608 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9615 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9618 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9619 klass = mono_class_from_mono_type (rtype->type);
9620 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9624 * mono_marshal_get_struct_to_ptr:
9627 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9628 * The wrapper info for the wrapper is a WrapperInfo structure.
9631 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9633 MonoMethodBuilder *mb;
9634 static MonoMethod *stoptr = NULL;
9638 g_assert (klass != NULL);
9640 mono_marshal_load_type_info (klass);
9642 if (klass->marshal_info->str_to_ptr)
9643 return klass->marshal_info->str_to_ptr;
9646 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9649 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9651 if (klass->blittable) {
9652 mono_mb_emit_byte (mb, CEE_LDARG_1);
9653 mono_mb_emit_byte (mb, CEE_LDARG_0);
9654 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9655 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9656 mono_mb_emit_byte (mb, CEE_PREFIX1);
9657 mono_mb_emit_byte (mb, CEE_CPBLK);
9660 /* allocate local 0 (pointer) src_ptr */
9661 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9662 /* allocate local 1 (pointer) dst_ptr */
9663 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9664 /* allocate local 2 (boolean) delete_old */
9665 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9666 mono_mb_emit_byte (mb, CEE_LDARG_2);
9667 mono_mb_emit_stloc (mb, 2);
9669 /* initialize src_ptr to point to the start of object data */
9670 mono_mb_emit_byte (mb, CEE_LDARG_0);
9671 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9672 mono_mb_emit_stloc (mb, 0);
9674 /* initialize dst_ptr */
9675 mono_mb_emit_byte (mb, CEE_LDARG_1);
9676 mono_mb_emit_stloc (mb, 1);
9678 emit_struct_conv (mb, klass, FALSE);
9681 mono_mb_emit_byte (mb, CEE_RET);
9683 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9686 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9687 mono_marshal_set_wrapper_info (res, info);
9689 klass->marshal_info->str_to_ptr = res;
9694 * mono_marshal_get_ptr_to_struct:
9697 * generates IL code for PtrToStructure (IntPtr src, object structure)
9698 * The wrapper info for the wrapper is a WrapperInfo structure.
9701 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9703 MonoMethodBuilder *mb;
9704 static MonoMethodSignature *ptostr = NULL;
9708 g_assert (klass != NULL);
9710 mono_marshal_load_type_info (klass);
9712 if (klass->marshal_info->ptr_to_str)
9713 return klass->marshal_info->ptr_to_str;
9716 MonoMethodSignature *sig;
9718 /* Create the signature corresponding to
9719 static void PtrToStructure (IntPtr ptr, object structure);
9720 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9721 sig = mono_create_icall_signature ("void ptr object");
9722 sig = signature_dup (mono_defaults.corlib, sig);
9724 mono_memory_barrier ();
9728 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9730 if (klass->blittable) {
9731 mono_mb_emit_byte (mb, CEE_LDARG_1);
9732 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9733 mono_mb_emit_byte (mb, CEE_LDARG_0);
9734 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9735 mono_mb_emit_byte (mb, CEE_PREFIX1);
9736 mono_mb_emit_byte (mb, CEE_CPBLK);
9739 /* allocate local 0 (pointer) src_ptr */
9740 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9741 /* allocate local 1 (pointer) dst_ptr */
9742 mono_mb_add_local (mb, &klass->this_arg);
9744 /* initialize src_ptr to point to the start of object data */
9745 mono_mb_emit_byte (mb, CEE_LDARG_0);
9746 mono_mb_emit_stloc (mb, 0);
9748 /* initialize dst_ptr */
9749 mono_mb_emit_byte (mb, CEE_LDARG_1);
9750 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9751 mono_mb_emit_stloc (mb, 1);
9753 emit_struct_conv (mb, klass, TRUE);
9756 mono_mb_emit_byte (mb, CEE_RET);
9758 res = mono_mb_create_method (mb, ptostr, 0);
9761 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9762 mono_marshal_set_wrapper_info (res, info);
9764 klass->marshal_info->ptr_to_str = res;
9769 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9770 * This is used to avoid infinite recursion since it is hard to determine where to
9771 * replace a method with its synchronized wrapper, and where not.
9772 * The runtime should execute METHOD instead of the wrapper.
9773 * The wrapper info for the wrapper is a WrapperInfo structure.
9776 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9778 MonoMethodBuilder *mb;
9780 MonoMethodSignature *sig;
9783 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9784 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9785 mono_mb_emit_byte (mb, CEE_RET);
9786 sig = signature_dup (method->klass->image, mono_method_signature (method));
9787 res = mono_mb_create_method (mb, sig, 0);
9789 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9790 info->d.synchronized_inner.method = method;
9791 mono_marshal_set_wrapper_info (res, info);
9796 * generates IL code for the synchronized wrapper: the generated method
9797 * calls METHOD while locking 'this' or the parent type.
9800 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9802 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9803 MonoMethodSignature *sig;
9804 MonoExceptionClause *clause;
9805 MonoMethodBuilder *mb;
9808 int i, pos, this_local, ret_local = 0;
9812 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9815 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9816 if ((res = mono_marshal_find_in_cache (cache, method)))
9819 sig = signature_dup (method->klass->image, mono_method_signature (method));
9822 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9825 if (!MONO_TYPE_IS_VOID (sig->ret))
9826 ret_local = mono_mb_add_local (mb, sig->ret);
9828 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9829 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9830 /* This will throw the type load exception when the wrapper is compiled */
9831 mono_mb_emit_byte (mb, CEE_LDNULL);
9832 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9833 mono_mb_emit_byte (mb, CEE_POP);
9835 if (!MONO_TYPE_IS_VOID (sig->ret))
9836 mono_mb_emit_ldloc (mb, ret_local);
9837 mono_mb_emit_byte (mb, CEE_RET);
9839 res = mono_mb_create_and_cache (cache, method,
9840 mb, sig, sig->param_count + 16);
9847 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9849 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9850 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9852 mono_loader_lock ();
9854 if (!enter_method) {
9855 MonoMethodDesc *desc;
9857 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9858 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9859 g_assert (enter_method);
9860 mono_method_desc_free (desc);
9862 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9863 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9864 g_assert (exit_method);
9865 mono_method_desc_free (desc);
9867 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9868 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9869 g_assert (gettypefromhandle_method);
9870 mono_method_desc_free (desc);
9873 mono_loader_unlock ();
9875 /* Push this or the type object */
9876 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9877 /* We have special handling for this in the JIT */
9878 int index = mono_mb_add_data (mb, method->klass);
9879 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9880 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9881 mono_mb_emit_i4 (mb, index);
9883 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9886 mono_mb_emit_ldarg (mb, 0);
9887 mono_mb_emit_stloc (mb, this_local);
9889 /* Call Monitor::Enter() */
9890 mono_mb_emit_ldloc (mb, this_local);
9891 mono_mb_emit_managed_call (mb, enter_method, NULL);
9893 clause->try_offset = mono_mb_get_label (mb);
9895 /* Call the method */
9897 mono_mb_emit_ldarg (mb, 0);
9898 for (i = 0; i < sig->param_count; i++)
9899 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9901 mono_mb_emit_managed_call (mb, method, NULL);
9903 if (!MONO_TYPE_IS_VOID (sig->ret))
9904 mono_mb_emit_stloc (mb, ret_local);
9906 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9908 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9909 clause->handler_offset = mono_mb_get_label (mb);
9911 /* Call Monitor::Exit() */
9912 mono_mb_emit_ldloc (mb, this_local);
9913 mono_mb_emit_managed_call (mb, exit_method, NULL);
9914 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9916 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9918 mono_mb_patch_branch (mb, pos);
9919 if (!MONO_TYPE_IS_VOID (sig->ret))
9920 mono_mb_emit_ldloc (mb, ret_local);
9921 mono_mb_emit_byte (mb, CEE_RET);
9923 mono_mb_set_clauses (mb, 1, clause);
9925 res = mono_mb_create_and_cache (cache, method,
9926 mb, sig, sig->param_count + 16);
9934 * the returned method calls 'method' unboxing the this argument
9937 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9939 MonoMethodSignature *sig = mono_method_signature (method);
9941 MonoMethodBuilder *mb;
9945 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9946 if ((res = mono_marshal_find_in_cache (cache, method)))
9949 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9951 g_assert (sig->hasthis);
9953 mono_mb_emit_ldarg (mb, 0);
9954 mono_mb_emit_icon (mb, sizeof (MonoObject));
9955 mono_mb_emit_byte (mb, CEE_ADD);
9956 for (i = 0; i < sig->param_count; ++i)
9957 mono_mb_emit_ldarg (mb, i + 1);
9958 mono_mb_emit_managed_call (mb, method, NULL);
9959 mono_mb_emit_byte (mb, CEE_RET);
9961 res = mono_mb_create_and_cache (cache, method,
9962 mb, sig, sig->param_count + 16);
9965 /* code_for (res); */
9971 STELEMREF_OBJECT, /*no check at all*/
9972 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9973 STELEMREF_CLASS, /*only the klass->parents check*/
9974 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9975 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9976 STELEMREF_KIND_COUNT
9979 static const char *strelemref_wrapper_name[] = {
9980 "object", "sealed_class", "class", "interface", "complex"
9984 is_monomorphic_array (MonoClass *klass)
9986 MonoClass *element_class;
9987 if (klass->rank != 1)
9990 element_class = klass->element_class;
9991 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9995 get_virtual_stelemref_kind (MonoClass *element_class)
9997 if (element_class == mono_defaults.object_class)
9998 return STELEMREF_OBJECT;
9999 if (is_monomorphic_array (element_class))
10000 return STELEMREF_SEALED_CLASS;
10001 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
10002 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
10003 #ifdef COMPRESSED_INTERFACE_BITMAP
10004 return STELEMREF_COMPLEX;
10006 return STELEMREF_INTERFACE;
10008 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
10009 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
10010 return STELEMREF_COMPLEX;
10011 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
10012 return STELEMREF_SEALED_CLASS;
10013 return STELEMREF_CLASS;
10017 load_array_element_address (MonoMethodBuilder *mb)
10019 mono_mb_emit_ldarg (mb, 0);
10020 mono_mb_emit_ldarg (mb, 1);
10021 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10025 load_array_class (MonoMethodBuilder *mb, int aklass)
10027 mono_mb_emit_ldarg (mb, 0);
10028 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10029 mono_mb_emit_byte (mb, CEE_LDIND_I);
10030 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10031 mono_mb_emit_byte (mb, CEE_LDIND_I);
10032 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10033 mono_mb_emit_byte (mb, CEE_LDIND_I);
10034 mono_mb_emit_stloc (mb, aklass);
10038 load_value_class (MonoMethodBuilder *mb, int vklass)
10040 mono_mb_emit_ldarg (mb, 2);
10041 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10042 mono_mb_emit_byte (mb, CEE_LDIND_I);
10043 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10044 mono_mb_emit_byte (mb, CEE_LDIND_I);
10045 mono_mb_emit_stloc (mb, vklass);
10050 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
10052 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
10053 printf ("slow vstore of %s\n", name);
10059 * The wrapper info for the wrapper is a WrapperInfo structure.
10062 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
10063 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
10064 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
10065 * - Add a case for arrays of arrays.
10068 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10070 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
10071 static MonoMethodSignature *signature;
10072 MonoMethodBuilder *mb;
10076 const char *param_names [16];
10077 guint32 b1, b2, b3;
10078 int aklass, vklass, vtable, uiid;
10079 int array_slot_addr;
10082 g_assert (array_class->rank == 1);
10083 kind = get_virtual_stelemref_kind (array_class->element_class);
10085 if (cached_methods [kind])
10086 return cached_methods [kind];
10088 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
10089 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
10092 param_names [0] = "index";
10093 param_names [1] = "value";
10094 mono_mb_set_param_names (mb, param_names);
10097 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10099 /* void this::stelemref (size_t idx, void* value) */
10100 sig->ret = &mono_defaults.void_class->byval_arg;
10101 sig->hasthis = TRUE;
10102 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10103 sig->params [1] = &mono_defaults.object_class->byval_arg;
10107 /*For now simply call plain old stelemref*/
10109 case STELEMREF_OBJECT:
10110 /* ldelema (implicit bound check) */
10111 load_array_element_address (mb);
10113 mono_mb_emit_ldarg (mb, 2);
10114 mono_mb_emit_byte (mb, CEE_STIND_REF);
10115 mono_mb_emit_byte (mb, CEE_RET);
10118 case STELEMREF_COMPLEX:
10120 <ldelema (bound check)>
10123 if (!mono_object_isinst (value, aklass))
10127 *array_slot_addr = value;
10130 throw new ArrayTypeMismatchException ();
10133 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10134 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10138 /*Use this to debug/record stores that are going thru the slow path*/
10139 MonoMethodSignature *csig;
10140 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10141 csig->ret = &mono_defaults.void_class->byval_arg;
10142 csig->params [0] = &mono_defaults.object_class->byval_arg;
10143 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10144 csig->params [2] = &mono_defaults.object_class->byval_arg;
10145 mono_mb_emit_ldarg (mb, 0);
10146 mono_mb_emit_ldarg (mb, 1);
10147 mono_mb_emit_ldarg (mb, 2);
10148 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
10152 /* ldelema (implicit bound check) */
10153 load_array_element_address (mb);
10154 mono_mb_emit_stloc (mb, array_slot_addr);
10156 /* if (!value) goto do_store */
10157 mono_mb_emit_ldarg (mb, 2);
10158 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10160 /* aklass = array->vtable->klass->element_class */
10161 load_array_class (mb, aklass);
10163 /*if (mono_object_isinst (value, aklass)) */
10164 mono_mb_emit_ldarg (mb, 2);
10165 mono_mb_emit_ldloc (mb, aklass);
10166 mono_mb_emit_icall (mb, mono_object_isinst);
10167 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10170 mono_mb_patch_branch (mb, b1);
10171 mono_mb_emit_ldloc (mb, array_slot_addr);
10172 mono_mb_emit_ldarg (mb, 2);
10173 mono_mb_emit_byte (mb, CEE_STIND_REF);
10174 mono_mb_emit_byte (mb, CEE_RET);
10176 /* do_exception: */
10177 mono_mb_patch_branch (mb, b2);
10179 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10182 case STELEMREF_SEALED_CLASS:
10184 <ldelema (bound check)>
10188 aklass = array->vtable->klass->element_class;
10189 vklass = value->vtable->klass;
10191 if (vklass != aklass)
10195 *array_slot_addr = value;
10198 throw new ArrayTypeMismatchException ();
10200 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10201 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10202 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10205 /* ldelema (implicit bound check) */
10206 load_array_element_address (mb);
10207 mono_mb_emit_stloc (mb, array_slot_addr);
10209 /* if (!value) goto do_store */
10210 mono_mb_emit_ldarg (mb, 2);
10211 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10213 /* aklass = array->vtable->klass->element_class */
10214 load_array_class (mb, aklass);
10216 /* vklass = value->vtable->klass */
10217 load_value_class (mb, vklass);
10219 /*if (vklass != aklass) goto do_exception; */
10220 mono_mb_emit_ldloc (mb, aklass);
10221 mono_mb_emit_ldloc (mb, vklass);
10222 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10225 mono_mb_patch_branch (mb, b1);
10226 mono_mb_emit_ldloc (mb, array_slot_addr);
10227 mono_mb_emit_ldarg (mb, 2);
10228 mono_mb_emit_byte (mb, CEE_STIND_REF);
10229 mono_mb_emit_byte (mb, CEE_RET);
10231 /* do_exception: */
10232 mono_mb_patch_branch (mb, b2);
10233 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10236 case STELEMREF_CLASS:
10239 <ldelema (bound check)>
10243 aklass = array->vtable->klass->element_class;
10244 vklass = value->vtable->klass;
10246 if (vklass->idepth < aklass->idepth)
10249 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10253 *array_slot_addr = value;
10257 throw new ArrayTypeMismatchException ();
10259 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10260 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10261 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10263 /* ldelema (implicit bound check) */
10264 load_array_element_address (mb);
10265 mono_mb_emit_stloc (mb, array_slot_addr);
10267 /* if (!value) goto do_store */
10268 mono_mb_emit_ldarg (mb, 2);
10269 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10271 /* aklass = array->vtable->klass->element_class */
10272 load_array_class (mb, aklass);
10274 /* vklass = value->vtable->klass */
10275 load_value_class (mb, vklass);
10277 /*if (mono_object_isinst (value, aklass)) */
10278 mono_mb_emit_ldarg (mb, 2);
10279 mono_mb_emit_ldloc (mb, aklass);
10280 mono_mb_emit_icall (mb, mono_object_isinst);
10281 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10283 /* if (vklass->idepth < aklass->idepth) goto failue */
10284 mono_mb_emit_ldloc (mb, vklass);
10285 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10286 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10288 mono_mb_emit_ldloc (mb, aklass);
10289 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10290 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10292 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10294 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10295 mono_mb_emit_ldloc (mb, vklass);
10296 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10297 mono_mb_emit_byte (mb, CEE_LDIND_I);
10299 mono_mb_emit_ldloc (mb, aklass);
10300 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10301 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10302 mono_mb_emit_icon (mb, 1);
10303 mono_mb_emit_byte (mb, CEE_SUB);
10304 mono_mb_emit_icon (mb, sizeof (void*));
10305 mono_mb_emit_byte (mb, CEE_MUL);
10306 mono_mb_emit_byte (mb, CEE_ADD);
10307 mono_mb_emit_byte (mb, CEE_LDIND_I);
10309 mono_mb_emit_ldloc (mb, aklass);
10310 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10313 mono_mb_patch_branch (mb, b1);
10314 mono_mb_emit_ldloc (mb, array_slot_addr);
10315 mono_mb_emit_ldarg (mb, 2);
10316 mono_mb_emit_byte (mb, CEE_STIND_REF);
10317 mono_mb_emit_byte (mb, CEE_RET);
10319 /* do_exception: */
10320 mono_mb_patch_branch (mb, b2);
10321 mono_mb_patch_branch (mb, b3);
10323 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10326 case STELEMREF_INTERFACE:
10333 klass = array->obj.vtable->klass->element_class;
10334 vt = value->vtable;
10335 uiid = klass->interface_id;
10336 if (uiid > vt->max_interface_id)
10338 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10341 mono_array_setref (array, index, value);
10344 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10346 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10347 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10348 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10349 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10351 /* ldelema (implicit bound check) */
10352 load_array_element_address (mb);
10353 mono_mb_emit_stloc (mb, array_slot_addr);
10355 /* if (!value) goto do_store */
10356 mono_mb_emit_ldarg (mb, 2);
10357 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10359 /* klass = array->vtable->klass->element_class */
10360 load_array_class (mb, aklass);
10362 /* vt = value->vtable */
10363 mono_mb_emit_ldarg (mb, 2);
10364 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10365 mono_mb_emit_byte (mb, CEE_LDIND_I);
10366 mono_mb_emit_stloc (mb, vtable);
10368 /* uiid = klass->interface_id; */
10369 mono_mb_emit_ldloc (mb, aklass);
10370 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10371 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10372 mono_mb_emit_stloc (mb, uiid);
10374 /*if (uiid > vt->max_interface_id)*/
10375 mono_mb_emit_ldloc (mb, uiid);
10376 mono_mb_emit_ldloc (mb, vtable);
10377 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10378 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10379 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10381 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10383 /*vt->interface_bitmap*/
10384 mono_mb_emit_ldloc (mb, vtable);
10385 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10386 mono_mb_emit_byte (mb, CEE_LDIND_I);
10389 mono_mb_emit_ldloc (mb, uiid);
10390 mono_mb_emit_icon (mb, 3);
10391 mono_mb_emit_byte (mb, CEE_SHR_UN);
10393 /*vt->interface_bitmap [(uiid) >> 3]*/
10394 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10395 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10397 /*(1 << ((uiid)&7)))*/
10398 mono_mb_emit_icon (mb, 1);
10399 mono_mb_emit_ldloc (mb, uiid);
10400 mono_mb_emit_icon (mb, 7);
10401 mono_mb_emit_byte (mb, CEE_AND);
10402 mono_mb_emit_byte (mb, CEE_SHL);
10404 /*bitwise and the whole thing*/
10405 mono_mb_emit_byte (mb, CEE_AND);
10406 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10409 mono_mb_patch_branch (mb, b1);
10410 mono_mb_emit_ldloc (mb, array_slot_addr);
10411 mono_mb_emit_ldarg (mb, 2);
10412 mono_mb_emit_byte (mb, CEE_STIND_REF);
10413 mono_mb_emit_byte (mb, CEE_RET);
10415 /* do_exception: */
10416 mono_mb_patch_branch (mb, b2);
10417 mono_mb_patch_branch (mb, b3);
10418 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10422 mono_mb_emit_ldarg (mb, 0);
10423 mono_mb_emit_ldarg (mb, 1);
10424 mono_mb_emit_ldarg (mb, 2);
10425 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10426 mono_mb_emit_byte (mb, CEE_RET);
10430 res = mono_mb_create_method (mb, signature, 4);
10431 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10433 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10434 info->d.virtual_stelemref.kind = kind;
10435 mono_marshal_set_wrapper_info (res, info);
10437 mono_marshal_lock ();
10438 if (!cached_methods [kind]) {
10439 cached_methods [kind] = res;
10440 mono_marshal_unlock ();
10442 mono_marshal_unlock ();
10443 mono_free_method (res);
10447 return cached_methods [kind];
10451 * The wrapper info for the wrapper is a WrapperInfo structure.
10454 mono_marshal_get_stelemref ()
10456 static MonoMethod* ret = NULL;
10457 MonoMethodSignature *sig;
10458 MonoMethodBuilder *mb;
10461 guint32 b1, b2, b3, b4;
10463 int aklass, vklass;
10464 int array_slot_addr;
10469 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10472 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10474 /* void stelemref (void* array, int idx, void* value) */
10475 sig->ret = &mono_defaults.void_class->byval_arg;
10476 sig->params [0] = &mono_defaults.object_class->byval_arg;
10477 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10478 sig->params [2] = &mono_defaults.object_class->byval_arg;
10480 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10481 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10482 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10486 <ldelema (bound check)>
10490 aklass = array->vtable->klass->element_class;
10491 vklass = value->vtable->klass;
10493 if (vklass->idepth < aklass->idepth)
10496 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10500 *array_slot_addr = value;
10504 if (mono_object_isinst (value, aklass))
10507 throw new ArrayTypeMismatchException ();
10510 /* ldelema (implicit bound check) */
10511 mono_mb_emit_ldarg (mb, 0);
10512 mono_mb_emit_ldarg (mb, 1);
10513 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10514 mono_mb_emit_stloc (mb, array_slot_addr);
10516 /* if (!value) goto do_store */
10517 mono_mb_emit_ldarg (mb, 2);
10518 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10520 /* aklass = array->vtable->klass->element_class */
10521 mono_mb_emit_ldarg (mb, 0);
10522 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10523 mono_mb_emit_byte (mb, CEE_LDIND_I);
10524 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10525 mono_mb_emit_byte (mb, CEE_LDIND_I);
10526 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10527 mono_mb_emit_byte (mb, CEE_LDIND_I);
10528 mono_mb_emit_stloc (mb, aklass);
10530 /* vklass = value->vtable->klass */
10531 mono_mb_emit_ldarg (mb, 2);
10532 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10533 mono_mb_emit_byte (mb, CEE_LDIND_I);
10534 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10535 mono_mb_emit_byte (mb, CEE_LDIND_I);
10536 mono_mb_emit_stloc (mb, vklass);
10538 /* if (vklass->idepth < aklass->idepth) goto failue */
10539 mono_mb_emit_ldloc (mb, vklass);
10540 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10541 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10543 mono_mb_emit_ldloc (mb, aklass);
10544 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10545 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10547 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10549 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10550 mono_mb_emit_ldloc (mb, vklass);
10551 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10552 mono_mb_emit_byte (mb, CEE_LDIND_I);
10554 mono_mb_emit_ldloc (mb, aklass);
10555 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10556 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10557 mono_mb_emit_icon (mb, 1);
10558 mono_mb_emit_byte (mb, CEE_SUB);
10559 mono_mb_emit_icon (mb, sizeof (void*));
10560 mono_mb_emit_byte (mb, CEE_MUL);
10561 mono_mb_emit_byte (mb, CEE_ADD);
10562 mono_mb_emit_byte (mb, CEE_LDIND_I);
10564 mono_mb_emit_ldloc (mb, aklass);
10566 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10568 copy_pos = mono_mb_get_label (mb);
10570 mono_mb_patch_branch (mb, b1);
10571 mono_mb_emit_ldloc (mb, array_slot_addr);
10572 mono_mb_emit_ldarg (mb, 2);
10573 mono_mb_emit_byte (mb, CEE_STIND_REF);
10575 mono_mb_emit_byte (mb, CEE_RET);
10578 mono_mb_patch_branch (mb, b2);
10579 mono_mb_patch_branch (mb, b3);
10581 mono_mb_emit_ldarg (mb, 2);
10582 mono_mb_emit_ldloc (mb, aklass);
10583 mono_mb_emit_icall (mb, mono_object_isinst);
10585 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10586 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10587 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10589 mono_mb_emit_byte (mb, CEE_RET);
10590 ret = mono_mb_create_method (mb, sig, 4);
10593 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_NONE);
10594 mono_marshal_set_wrapper_info (ret, info);
10602 MonoMethod *method;
10605 /* LOCKING: vars accessed under the marshal lock */
10606 static ArrayElemAddr *elem_addr_cache = NULL;
10607 static int elem_addr_cache_size = 0;
10608 static int elem_addr_cache_next = 0;
10611 * mono_marshal_get_array_address:
10612 * @rank: rank of the array type
10613 * @elem_size: size in bytes of an element of an array.
10615 * Returns a MonoMethd that implements the code to get the address
10616 * of an element in a multi-dimenasional array of @rank dimensions.
10617 * The returned method takes an array as the first argument and then
10618 * @rank indexes for the @rank dimensions.
10621 mono_marshal_get_array_address (int rank, int elem_size)
10624 MonoMethodBuilder *mb;
10625 MonoMethodSignature *sig;
10626 int i, bounds, ind, realidx;
10627 int branch_pos, *branch_positions;
10631 mono_marshal_lock ();
10632 for (i = 0; i < elem_addr_cache_next; ++i) {
10633 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10634 ret = elem_addr_cache [i].method;
10638 mono_marshal_unlock ();
10642 branch_positions = g_new0 (int, rank);
10644 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10646 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10647 sig->ret = &mono_defaults.int_class->byval_arg;
10648 sig->params [0] = &mono_defaults.object_class->byval_arg;
10649 for (i = 0; i < rank; ++i) {
10650 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10653 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10655 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10656 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10657 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10659 /* bounds = array->bounds; */
10660 mono_mb_emit_ldarg (mb, 0);
10661 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10662 mono_mb_emit_byte (mb, CEE_LDIND_I);
10663 mono_mb_emit_stloc (mb, bounds);
10665 /* ind is the overall element index, realidx is the partial index in a single dimension */
10666 /* ind = idx0 - bounds [0].lower_bound */
10667 mono_mb_emit_ldarg (mb, 1);
10668 mono_mb_emit_ldloc (mb, bounds);
10669 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10670 mono_mb_emit_byte (mb, CEE_ADD);
10671 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10672 mono_mb_emit_byte (mb, CEE_SUB);
10673 mono_mb_emit_stloc (mb, ind);
10674 /* if (ind >= bounds [0].length) goto exeception; */
10675 mono_mb_emit_ldloc (mb, ind);
10676 mono_mb_emit_ldloc (mb, bounds);
10677 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10678 mono_mb_emit_byte (mb, CEE_ADD);
10679 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10680 /* note that we use unsigned comparison */
10681 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10683 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10684 * We could also decide to ignore the passed elem_size and get it
10685 * from the array object, to reduce the number of methods we generate:
10686 * the additional cost is 3 memory loads and a non-immediate mul.
10688 for (i = 1; i < rank; ++i) {
10689 /* realidx = idxi - bounds [i].lower_bound */
10690 mono_mb_emit_ldarg (mb, 1 + i);
10691 mono_mb_emit_ldloc (mb, bounds);
10692 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10693 mono_mb_emit_byte (mb, CEE_ADD);
10694 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10695 mono_mb_emit_byte (mb, CEE_SUB);
10696 mono_mb_emit_stloc (mb, realidx);
10697 /* if (realidx >= bounds [i].length) goto exeception; */
10698 mono_mb_emit_ldloc (mb, realidx);
10699 mono_mb_emit_ldloc (mb, bounds);
10700 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10701 mono_mb_emit_byte (mb, CEE_ADD);
10702 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10703 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10704 /* ind = ind * bounds [i].length + realidx */
10705 mono_mb_emit_ldloc (mb, ind);
10706 mono_mb_emit_ldloc (mb, bounds);
10707 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10708 mono_mb_emit_byte (mb, CEE_ADD);
10709 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10710 mono_mb_emit_byte (mb, CEE_MUL);
10711 mono_mb_emit_ldloc (mb, realidx);
10712 mono_mb_emit_byte (mb, CEE_ADD);
10713 mono_mb_emit_stloc (mb, ind);
10716 /* return array->vector + ind * element_size */
10717 mono_mb_emit_ldarg (mb, 0);
10718 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10719 mono_mb_emit_ldloc (mb, ind);
10720 mono_mb_emit_icon (mb, elem_size);
10721 mono_mb_emit_byte (mb, CEE_MUL);
10722 mono_mb_emit_byte (mb, CEE_ADD);
10723 mono_mb_emit_byte (mb, CEE_RET);
10725 /* patch the branches to get here and throw */
10726 for (i = 1; i < rank; ++i) {
10727 mono_mb_patch_branch (mb, branch_positions [i]);
10729 mono_mb_patch_branch (mb, branch_pos);
10730 /* throw exception */
10731 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10733 g_free (branch_positions);
10734 ret = mono_mb_create_method (mb, sig, 4);
10737 /* cache the result */
10739 mono_marshal_lock ();
10740 for (i = 0; i < elem_addr_cache_next; ++i) {
10741 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10742 /* FIXME: free ret */
10743 ret = elem_addr_cache [i].method;
10751 if (elem_addr_cache_next >= elem_addr_cache_size) {
10752 int new_size = elem_addr_cache_size + 4;
10753 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10754 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10755 g_free (elem_addr_cache);
10756 elem_addr_cache = new_array;
10757 elem_addr_cache_size = new_size;
10759 elem_addr_cache [elem_addr_cache_next].rank = rank;
10760 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10761 elem_addr_cache [elem_addr_cache_next].method = ret;
10762 elem_addr_cache_next ++;
10764 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10765 info->d.element_addr.rank = rank;
10766 info->d.element_addr.elem_size = elem_size;
10767 mono_marshal_set_wrapper_info (ret, info);
10769 mono_marshal_unlock ();
10774 mono_marshal_alloc (gulong size)
10779 res = CoTaskMemAlloc (size);
10781 res = g_try_malloc ((gulong)size);
10783 mono_gc_out_of_memory ((gulong)size);
10789 mono_marshal_free (gpointer ptr)
10792 CoTaskMemFree (ptr);
10799 mono_marshal_free_array (gpointer *ptr, int size)
10806 for (i = 0; i < size; i++)
10812 mono_marshal_string_to_utf16 (MonoString *s)
10814 return s ? mono_string_chars (s) : NULL;
10818 mono_marshal_string_to_utf16_copy (MonoString *s)
10823 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10824 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10825 res [mono_string_length (s)] = 0;
10831 * mono_marshal_set_last_error:
10833 * This function is invoked to set the last error value from a P/Invoke call
10834 * which has SetLastError set.
10837 mono_marshal_set_last_error (void)
10840 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10842 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10847 mono_marshal_set_last_error_windows (int error)
10850 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10855 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10856 gpointer dest, gint32 length)
10861 MONO_ARCH_SAVE_REGS;
10863 MONO_CHECK_ARG_NULL (src);
10864 MONO_CHECK_ARG_NULL (dest);
10866 if (src->obj.vtable->klass->rank != 1)
10867 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10868 if (start_index < 0)
10869 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10871 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10872 if (start_index + length > mono_array_length (src))
10873 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10875 element_size = mono_array_element_size (src->obj.vtable->klass);
10877 /* no references should be involved */
10878 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10880 memcpy (dest, source_addr, length * element_size);
10884 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10885 MonoArray *dest, gint32 length)
10890 MONO_ARCH_SAVE_REGS;
10892 MONO_CHECK_ARG_NULL (src);
10893 MONO_CHECK_ARG_NULL (dest);
10895 if (dest->obj.vtable->klass->rank != 1)
10896 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10897 if (start_index < 0)
10898 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10900 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10901 if (start_index + length > mono_array_length (dest))
10902 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10904 element_size = mono_array_element_size (dest->obj.vtable->klass);
10906 /* no references should be involved */
10907 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10909 memcpy (dest_addr, src, length * element_size);
10912 #if NO_UNALIGNED_ACCESS
10913 #define RETURN_UNALIGNED(type, addr) \
10916 memcpy(&val, p + offset, sizeof(val)); \
10919 #define WRITE_UNALIGNED(type, addr, val) \
10920 memcpy(addr, &val, sizeof(type))
10922 #define RETURN_UNALIGNED(type, addr) \
10923 return *(type*)(p + offset);
10924 #define WRITE_UNALIGNED(type, addr, val) \
10925 (*(type *)(addr) = (val))
10929 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10933 MONO_ARCH_SAVE_REGS;
10935 RETURN_UNALIGNED(gpointer, p + offset);
10939 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10943 MONO_ARCH_SAVE_REGS;
10945 return *(unsigned char*)(p + offset);
10949 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10953 MONO_ARCH_SAVE_REGS;
10955 RETURN_UNALIGNED(gint16, p + offset);
10959 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10963 MONO_ARCH_SAVE_REGS;
10965 RETURN_UNALIGNED(gint32, p + offset);
10969 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10973 MONO_ARCH_SAVE_REGS;
10975 RETURN_UNALIGNED(gint64, p + offset);
10979 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10983 MONO_ARCH_SAVE_REGS;
10985 *(unsigned char*)(p + offset) = val;
10989 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10993 MONO_ARCH_SAVE_REGS;
10995 WRITE_UNALIGNED(gpointer, p + offset, val);
10999 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
11003 MONO_ARCH_SAVE_REGS;
11005 WRITE_UNALIGNED(gint16, p + offset, val);
11009 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
11013 MONO_ARCH_SAVE_REGS;
11015 WRITE_UNALIGNED(gint32, p + offset, val);
11019 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
11023 MONO_ARCH_SAVE_REGS;
11025 WRITE_UNALIGNED(gint64, p + offset, val);
11029 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
11031 MONO_ARCH_SAVE_REGS;
11036 return mono_string_new (mono_domain_get (), ptr);
11040 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
11042 MONO_ARCH_SAVE_REGS;
11045 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
11046 g_assert_not_reached ();
11049 return mono_string_new_len (mono_domain_get (), ptr, len);
11054 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
11056 MonoDomain *domain = mono_domain_get ();
11060 MONO_ARCH_SAVE_REGS;
11068 return mono_string_new_utf16 (domain, ptr, len);
11072 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11074 MonoDomain *domain = mono_domain_get ();
11076 MONO_ARCH_SAVE_REGS;
11079 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
11080 g_assert_not_reached ();
11083 return mono_string_new_utf16 (domain, ptr, len);
11088 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11090 MONO_ARCH_SAVE_REGS;
11092 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11096 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
11102 MONO_ARCH_SAVE_REGS;
11104 MONO_CHECK_ARG_NULL (rtype);
11106 type = rtype->type;
11107 klass = mono_class_from_mono_type (type);
11108 if (!mono_class_init (klass))
11109 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11111 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
11113 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11115 MonoException *exc;
11117 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11118 exc = mono_get_exception_argument ("t", msg);
11120 mono_raise_exception (exc);
11124 return mono_class_native_size (klass, NULL);
11128 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11130 MonoMethod *method;
11133 MONO_ARCH_SAVE_REGS;
11135 MONO_CHECK_ARG_NULL (obj);
11136 MONO_CHECK_ARG_NULL (dst);
11138 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11142 pa [2] = &delete_old;
11144 mono_runtime_invoke (method, NULL, pa, NULL);
11148 ptr_to_structure (gpointer src, MonoObject *dst)
11150 MonoMethod *method;
11153 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11158 mono_runtime_invoke (method, NULL, pa, NULL);
11162 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11166 MONO_ARCH_SAVE_REGS;
11168 MONO_CHECK_ARG_NULL (src);
11169 MONO_CHECK_ARG_NULL (dst);
11171 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11173 if (t->type == MONO_TYPE_VALUETYPE) {
11174 MonoException *exc;
11177 tmp = g_strdup_printf ("Destination is a boxed value type.");
11178 exc = mono_get_exception_argument ("dst", tmp);
11181 mono_raise_exception (exc);
11185 ptr_to_structure (src, dst);
11189 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11192 MonoDomain *domain = mono_domain_get ();
11195 MONO_ARCH_SAVE_REGS;
11197 MONO_CHECK_ARG_NULL (src);
11198 MONO_CHECK_ARG_NULL (type);
11200 klass = mono_class_from_mono_type (type->type);
11201 if (!mono_class_init (klass))
11202 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11204 res = mono_object_new (domain, klass);
11206 ptr_to_structure (src, res);
11212 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11214 MonoMarshalType *info;
11217 int match_index = -1;
11219 MONO_ARCH_SAVE_REGS;
11221 MONO_CHECK_ARG_NULL (type);
11222 MONO_CHECK_ARG_NULL (field_name);
11224 fname = mono_string_to_utf8 (field_name);
11225 klass = mono_class_from_mono_type (type->type);
11226 if (!mono_class_init (klass))
11227 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11229 while (klass && match_index == -1) {
11230 MonoClassField* field;
11232 gpointer iter = NULL;
11233 while ((field = mono_class_get_fields (klass, &iter))) {
11234 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11236 if (!strcmp (fname, mono_field_get_name (field))) {
11243 if (match_index == -1)
11244 klass = klass->parent;
11249 if(match_index == -1) {
11250 MonoException* exc;
11253 /* Get back original class instance */
11254 klass = mono_class_from_mono_type (type->type);
11256 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11257 exc = mono_get_exception_argument ("fieldName", tmp);
11260 mono_raise_exception ((MonoException*)exc);
11263 info = mono_marshal_load_type_info (klass);
11264 return info->fields [match_index].offset;
11268 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11273 tres = mono_string_to_utf8 (string);
11277 len = strlen (tres) + 1;
11278 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11279 memcpy (ret, tres, len);
11284 return mono_string_to_utf8 (string);
11289 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11291 MONO_ARCH_SAVE_REGS;
11293 if (string == NULL)
11296 #ifdef TARGET_WIN32
11297 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11298 ((mono_string_length (string) + 1) * 2);
11300 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11302 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11303 res [mono_string_length (string)] = 0;
11309 mono_struct_delete_old (MonoClass *klass, char *ptr)
11311 MonoMarshalType *info;
11314 info = mono_marshal_load_type_info (klass);
11316 for (i = 0; i < info->num_fields; i++) {
11317 MonoMarshalNative ntype;
11318 MonoMarshalConv conv;
11319 MonoType *ftype = info->fields [i].field->type;
11322 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11325 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11326 klass->unicode, &conv);
11328 cpos = ptr + info->fields [i].offset;
11331 case MONO_MARSHAL_CONV_NONE:
11332 if (MONO_TYPE_ISSTRUCT (ftype)) {
11333 mono_struct_delete_old (ftype->data.klass, cpos);
11337 case MONO_MARSHAL_CONV_STR_LPWSTR:
11338 /* We assume this field points inside a MonoString */
11340 case MONO_MARSHAL_CONV_STR_LPTSTR:
11341 #ifdef TARGET_WIN32
11342 /* We assume this field points inside a MonoString
11346 case MONO_MARSHAL_CONV_STR_LPSTR:
11347 case MONO_MARSHAL_CONV_STR_BSTR:
11348 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11349 case MONO_MARSHAL_CONV_STR_TBSTR:
11350 mono_marshal_free (*(gpointer *)cpos);
11360 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11364 MONO_ARCH_SAVE_REGS;
11366 MONO_CHECK_ARG_NULL (src);
11367 MONO_CHECK_ARG_NULL (type);
11369 klass = mono_class_from_mono_type (type->type);
11370 if (!mono_class_init (klass))
11371 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11373 mono_struct_delete_old (klass, (char *)src);
11377 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11381 MONO_ARCH_SAVE_REGS;
11383 if ((gulong)size == 0)
11384 /* This returns a valid pointer for size 0 on MS.NET */
11388 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11390 res = g_try_malloc ((gulong)size);
11393 mono_gc_out_of_memory ((gulong)size);
11399 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11404 mono_gc_out_of_memory ((gulong)size);
11409 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11411 res = g_try_realloc (ptr, (gulong)size);
11414 mono_gc_out_of_memory ((gulong)size);
11420 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11422 MONO_ARCH_SAVE_REGS;
11432 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11434 MONO_ARCH_SAVE_REGS;
11437 return CoTaskMemAlloc (size);
11439 return g_try_malloc ((gulong)size);
11444 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11446 MONO_ARCH_SAVE_REGS;
11449 CoTaskMemFree (ptr);
11456 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11458 MONO_ARCH_SAVE_REGS;
11461 return CoTaskMemRealloc (ptr, size);
11463 return g_try_realloc (ptr, (gulong)size);
11468 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11470 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11474 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11476 MonoClass *klass = mono_type_get_class (type->type);
11477 if (!mono_class_init (klass))
11478 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11480 return mono_ftnptr_to_delegate (klass, ftn);
11484 * mono_marshal_is_loading_type_info:
11486 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11490 mono_marshal_is_loading_type_info (MonoClass *klass)
11492 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11494 return g_slist_find (loads_list, klass) != NULL;
11498 * mono_marshal_load_type_info:
11500 * Initialize klass->marshal_info using information from metadata. This function can
11501 * recursively call itself, and the caller is responsible to avoid that by calling
11502 * mono_marshal_is_loading_type_info () beforehand.
11504 * LOCKING: Acquires the loader lock.
11507 mono_marshal_load_type_info (MonoClass* klass)
11510 guint32 native_size = 0, min_align = 1, packing;
11511 MonoMarshalType *info;
11512 MonoClassField* field;
11515 GSList *loads_list;
11517 g_assert (klass != NULL);
11519 if (klass->marshal_info)
11520 return klass->marshal_info;
11522 if (!klass->inited)
11523 mono_class_init (klass);
11525 mono_loader_lock ();
11527 if (klass->marshal_info) {
11528 mono_loader_unlock ();
11529 return klass->marshal_info;
11533 * This function can recursively call itself, so we keep the list of classes which are
11534 * under initialization in a TLS list.
11536 g_assert (!mono_marshal_is_loading_type_info (klass));
11537 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11538 loads_list = g_slist_prepend (loads_list, klass);
11539 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11542 while ((field = mono_class_get_fields (klass, &iter))) {
11543 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11545 if (mono_field_is_deleted (field))
11550 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11552 /* The mempool is protected by the loader lock */
11553 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11554 info->num_fields = count;
11556 /* Try to find a size for this type in metadata */
11557 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11559 if (klass->parent) {
11560 int parent_size = mono_class_native_size (klass->parent, NULL);
11562 /* Add parent size to real size */
11563 native_size += parent_size;
11564 info->native_size = parent_size;
11567 packing = klass->packing_size ? klass->packing_size : 8;
11570 while ((field = mono_class_get_fields (klass, &iter))) {
11574 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11577 if (mono_field_is_deleted (field))
11579 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11580 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11581 NULL, NULL, &info->fields [j].mspec);
11583 info->fields [j].field = field;
11585 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11586 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11587 /* This field is a hack inserted by MCS to empty structures */
11592 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11593 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11594 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11595 &align, TRUE, klass->unicode);
11596 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11597 min_align = MAX (align, min_align);
11598 info->fields [j].offset = info->native_size;
11599 info->fields [j].offset += align - 1;
11600 info->fields [j].offset &= ~(align - 1);
11601 info->native_size = info->fields [j].offset + size;
11603 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11604 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11605 &align, TRUE, klass->unicode);
11606 min_align = packing;
11607 info->fields [j].offset = field->offset - sizeof (MonoObject);
11608 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11614 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11615 info->native_size = MAX (native_size, info->native_size);
11617 * If the provided Size is equal or larger than the calculated size, and there
11618 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11620 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11621 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11625 if (info->native_size & (min_align - 1)) {
11626 info->native_size += min_align - 1;
11627 info->native_size &= ~(min_align - 1);
11630 info->min_align = min_align;
11632 /* Update the class's blittable info, if the layouts don't match */
11633 if (info->native_size != mono_class_value_size (klass, NULL))
11634 klass->blittable = FALSE;
11636 /* If this is an array type, ensure that we have element info */
11637 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11638 mono_marshal_load_type_info (klass->element_class);
11641 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11642 loads_list = g_slist_remove (loads_list, klass);
11643 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11645 /*We do double-checking locking on marshal_info */
11646 mono_memory_barrier ();
11648 klass->marshal_info = info;
11650 mono_loader_unlock ();
11652 return klass->marshal_info;
11656 * mono_class_native_size:
11659 * Returns: the native size of an object instance (when marshaled
11660 * to unmanaged code)
11663 mono_class_native_size (MonoClass *klass, guint32 *align)
11665 if (!klass->marshal_info) {
11666 if (mono_marshal_is_loading_type_info (klass)) {
11671 mono_marshal_load_type_info (klass);
11676 *align = klass->marshal_info->min_align;
11678 return klass->marshal_info->native_size;
11681 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11682 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11683 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11684 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11687 * mono_type_native_stack_size:
11688 * @t: the type to return the size it uses on the stack
11690 * Returns: the number of bytes required to hold an instance of this
11691 * type on the native stack
11694 mono_type_native_stack_size (MonoType *t, guint32 *align)
11698 g_assert (t != NULL);
11704 *align = sizeof (gpointer);
11705 return sizeof (gpointer);
11709 case MONO_TYPE_BOOLEAN:
11710 case MONO_TYPE_CHAR:
11721 case MONO_TYPE_STRING:
11722 case MONO_TYPE_OBJECT:
11723 case MONO_TYPE_CLASS:
11724 case MONO_TYPE_SZARRAY:
11725 case MONO_TYPE_PTR:
11726 case MONO_TYPE_FNPTR:
11727 case MONO_TYPE_ARRAY:
11728 *align = sizeof (gpointer);
11729 return sizeof (gpointer);
11734 *align = ALIGNMENT (gdouble);
11738 *align = ALIGNMENT (glong);
11740 case MONO_TYPE_GENERICINST:
11741 if (!mono_type_generic_inst_is_valuetype (t)) {
11742 *align = sizeof (gpointer);
11743 return sizeof (gpointer);
11746 case MONO_TYPE_TYPEDBYREF:
11747 case MONO_TYPE_VALUETYPE: {
11749 MonoClass *klass = mono_class_from_mono_type (t);
11751 if (klass->enumtype)
11752 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11754 size = mono_class_native_size (klass, align);
11755 *align = *align + 3;
11765 g_error ("type 0x%02x unknown", t->type);
11771 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11772 gboolean as_field, gboolean unicode)
11774 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11777 switch (native_type) {
11778 case MONO_NATIVE_BOOLEAN:
11781 case MONO_NATIVE_I1:
11782 case MONO_NATIVE_U1:
11785 case MONO_NATIVE_I2:
11786 case MONO_NATIVE_U2:
11787 case MONO_NATIVE_VARIANTBOOL:
11790 case MONO_NATIVE_I4:
11791 case MONO_NATIVE_U4:
11792 case MONO_NATIVE_ERROR:
11795 case MONO_NATIVE_I8:
11796 case MONO_NATIVE_U8:
11797 *align = ALIGNMENT(guint64);
11799 case MONO_NATIVE_R4:
11802 case MONO_NATIVE_R8:
11803 *align = ALIGNMENT(double);
11805 case MONO_NATIVE_INT:
11806 case MONO_NATIVE_UINT:
11807 case MONO_NATIVE_LPSTR:
11808 case MONO_NATIVE_LPWSTR:
11809 case MONO_NATIVE_LPTSTR:
11810 case MONO_NATIVE_BSTR:
11811 case MONO_NATIVE_ANSIBSTR:
11812 case MONO_NATIVE_TBSTR:
11813 case MONO_NATIVE_LPARRAY:
11814 case MONO_NATIVE_SAFEARRAY:
11815 case MONO_NATIVE_IUNKNOWN:
11816 case MONO_NATIVE_IDISPATCH:
11817 case MONO_NATIVE_INTERFACE:
11818 case MONO_NATIVE_ASANY:
11819 case MONO_NATIVE_FUNC:
11820 case MONO_NATIVE_LPSTRUCT:
11821 *align = ALIGNMENT(gpointer);
11822 return sizeof (gpointer);
11823 case MONO_NATIVE_STRUCT:
11824 klass = mono_class_from_mono_type (type);
11825 if (klass == mono_defaults.object_class &&
11826 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11830 return mono_class_native_size (klass, align);
11831 case MONO_NATIVE_BYVALTSTR: {
11832 int esize = unicode ? 2: 1;
11835 return mspec->data.array_data.num_elem * esize;
11837 case MONO_NATIVE_BYVALARRAY: {
11838 // FIXME: Have to consider ArraySubType
11840 klass = mono_class_from_mono_type (type);
11841 if (klass->element_class == mono_defaults.char_class) {
11842 esize = unicode ? 2 : 1;
11845 esize = mono_class_native_size (klass->element_class, align);
11848 return mspec->data.array_data.num_elem * esize;
11850 case MONO_NATIVE_CUSTOM:
11851 *align = sizeof (gpointer);
11852 return sizeof (gpointer);
11854 case MONO_NATIVE_CURRENCY:
11855 case MONO_NATIVE_VBBYREFSTR:
11857 g_error ("native type %02x not implemented", native_type);
11860 g_assert_not_reached ();
11865 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11873 t = &o->vtable->klass->byval_arg;
11877 case MONO_TYPE_PTR:
11880 case MONO_TYPE_BOOLEAN:
11883 case MONO_TYPE_CHAR:
11888 return mono_object_unbox (o);
11890 case MONO_TYPE_STRING:
11891 switch (string_encoding) {
11892 case MONO_NATIVE_LPWSTR:
11893 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11895 case MONO_NATIVE_LPSTR:
11896 return mono_string_to_lpstr ((MonoString*)o);
11899 g_warning ("marshaling conversion %d not implemented", string_encoding);
11900 g_assert_not_reached ();
11903 case MONO_TYPE_CLASS:
11904 case MONO_TYPE_VALUETYPE: {
11905 MonoMethod *method;
11908 MonoBoolean delete_old = FALSE;
11910 klass = t->data.klass;
11912 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11915 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11916 klass->blittable || klass->enumtype))
11917 return mono_object_unbox (o);
11919 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11921 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11922 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11926 pa [2] = &delete_old;
11928 mono_runtime_invoke (method, NULL, pa, NULL);
11935 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11941 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11949 t = &o->vtable->klass->byval_arg;
11951 case MONO_TYPE_STRING:
11952 switch (string_encoding) {
11953 case MONO_NATIVE_LPWSTR:
11954 case MONO_NATIVE_LPSTR:
11955 mono_marshal_free (ptr);
11958 g_warning ("marshaling conversion %d not implemented", string_encoding);
11959 g_assert_not_reached ();
11962 case MONO_TYPE_CLASS:
11963 case MONO_TYPE_VALUETYPE: {
11964 klass = t->data.klass;
11966 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11967 klass->blittable || klass->enumtype))
11970 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11971 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11977 mono_runtime_invoke (method, NULL, pa, NULL);
11980 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11981 mono_struct_delete_old (klass, ptr);
11984 mono_marshal_free (ptr);
11993 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11995 MonoMethodSignature *sig, *csig;
11996 MonoMethodBuilder *mb;
12000 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
12001 mb->method->slot = -1;
12003 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
12004 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12006 sig = mono_method_signature (method);
12007 csig = signature_dup (method->klass->image, sig);
12008 csig->generic_param_count = 0;
12010 mono_mb_emit_ldarg (mb, 0);
12011 for (i = 0; i < csig->param_count; i++)
12012 mono_mb_emit_ldarg (mb, i + 1);
12013 mono_mb_emit_managed_call (mb, method, NULL);
12014 mono_mb_emit_byte (mb, CEE_RET);
12016 /* We can corlib internal methods */
12017 mb->skip_visibility = TRUE;
12019 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
12027 * The mono_win32_compat_* functions are implementations of inline
12028 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12029 * although not exported by kernel32.
12031 * We map the appropiate kernel32 entries to these functions using
12032 * dllmaps declared in the global etc/mono/config.
12036 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12038 if (!dest || !source)
12041 memcpy (dest, source, length);
12045 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12047 memset (dest, fill, length);
12051 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12053 if (!dest || !source)
12056 memmove (dest, source, length);
12060 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12062 memset (dest, 0, length);
12066 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12071 for (i = 0; i < len; ++i)
12075 g_assert (i < len);
12078 while (byte && !(byte & 1))
12080 g_assert (byte == 1);
12083 *bitmask = buf [i];
12087 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12089 MonoMethodBuilder *mb;
12090 MonoMethodSignature *sig, *csig;
12091 MonoExceptionClause *clause;
12096 int i, param_count, sig_size, pos_leave;
12100 klass = method->klass;
12101 image = method->klass->image;
12102 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12104 if ((res = mono_marshal_find_in_cache (cache, method)))
12107 sig = mono_method_signature (method);
12108 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12110 /* add "this" and exception param */
12111 param_count = sig->param_count + sig->hasthis + 1;
12113 /* dup & extend signature */
12114 csig = mono_metadata_signature_alloc (image, param_count);
12115 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12116 memcpy (csig, sig, sig_size);
12117 csig->param_count = param_count;
12120 csig->call_convention = MONO_CALL_DEFAULT;
12122 if (sig->hasthis) {
12124 csig->params [0] = &klass->byval_arg;
12125 /* move params up by one */
12126 for (i = 0; i < sig->param_count; i++)
12127 csig->params [i + 1] = sig->params [i];
12130 /* setup exception param as byref+[out] */
12131 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12132 &mono_defaults.exception_class->byval_arg);
12133 csig->params [param_count - 1]->byref = 1;
12134 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12136 /* convert struct return to object */
12137 if (MONO_TYPE_ISSTRUCT (sig->ret))
12138 csig->ret = &mono_defaults.object_class->byval_arg;
12140 /* local 0 (temp for exception object) */
12141 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12143 /* local 1 (temp for result) */
12144 if (!MONO_TYPE_IS_VOID (sig->ret))
12145 mono_mb_add_local (mb, sig->ret);
12147 /* clear exception arg */
12148 mono_mb_emit_ldarg (mb, param_count - 1);
12149 mono_mb_emit_byte (mb, CEE_LDNULL);
12150 mono_mb_emit_byte (mb, CEE_STIND_REF);
12153 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12154 clause->try_offset = mono_mb_get_label (mb);
12156 /* push method's args */
12157 for (i = 0; i < param_count - 1; i++) {
12161 mono_mb_emit_ldarg (mb, i);
12163 /* get the byval type of the param */
12164 klass = mono_class_from_mono_type (csig->params [i]);
12165 type = &klass->byval_arg;
12167 /* unbox struct args */
12168 if (MONO_TYPE_ISSTRUCT (type)) {
12169 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12171 /* byref args & and the "this" arg must remain a ptr.
12172 Otherwise make a copy of the value type */
12173 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12174 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12176 csig->params [i] = &mono_defaults.object_class->byval_arg;
12181 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12182 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12184 mono_mb_emit_op (mb, CEE_CALL, method);
12186 /* save result at local 1 */
12187 if (!MONO_TYPE_IS_VOID (sig->ret))
12188 mono_mb_emit_stloc (mb, 1);
12190 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12193 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12194 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12195 clause->data.catch_class = mono_defaults.object_class;
12197 clause->handler_offset = mono_mb_get_label (mb);
12199 /* store exception at local 0 */
12200 mono_mb_emit_stloc (mb, 0);
12201 mono_mb_emit_ldarg (mb, param_count - 1);
12202 mono_mb_emit_ldloc (mb, 0);
12203 mono_mb_emit_byte (mb, CEE_STIND_REF);
12204 mono_mb_emit_branch (mb, CEE_LEAVE);
12206 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12208 mono_mb_set_clauses (mb, 1, clause);
12210 mono_mb_patch_branch (mb, pos_leave);
12213 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12214 mono_mb_emit_ldloc (mb, 1);
12216 /* box the return value */
12217 if (MONO_TYPE_ISSTRUCT (sig->ret))
12218 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12221 mono_mb_emit_byte (mb, CEE_RET);
12223 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12230 * mono_marshal_free_dynamic_wrappers:
12232 * Free wrappers of the dynamic method METHOD.
12235 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12237 MonoImage *image = method->klass->image;
12239 g_assert (method->dynamic);
12241 /* This could be called during shutdown */
12242 if (marshal_mutex_initialized)
12243 mono_marshal_lock ();
12245 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12246 * they could be shared with other methods ?
12248 if (image->runtime_invoke_direct_cache)
12249 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
12250 if (image->delegate_bound_static_invoke_cache)
12251 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
12252 if (image->delegate_abstract_invoke_cache)
12253 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
12255 if (marshal_mutex_initialized)
12256 mono_marshal_unlock ();
12260 * mono_marshal_free_inflated_wrappers:
12262 * Free wrappers of the inflated method METHOD.
12266 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
12268 SignatureMethodPair *pair = (SignatureMethodPair*)key;
12269 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
12271 return mono_metadata_signature_equal (pair->sig, sig);
12275 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12277 MonoMethodSignature *sig = method->signature;
12279 g_assert (method->is_inflated);
12281 /* Ignore calls occuring late during cleanup. */
12282 if (!marshal_mutex_initialized)
12285 mono_marshal_lock ();
12287 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12288 * they could be shared with other methods ?
12292 * indexed by MonoMethodSignature
12294 /* FIXME: This could remove unrelated wrappers as well */
12295 if (sig && method->klass->image->delegate_begin_invoke_cache)
12296 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12297 if (sig && method->klass->image->delegate_end_invoke_cache)
12298 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12299 if (sig && method->klass->image->delegate_invoke_cache)
12300 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12301 if (sig && method->klass->image->runtime_invoke_cache)
12302 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12305 * indexed by SignatureMethodPair
12307 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12308 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12309 signature_method_pair_matches_signature, (gpointer)sig);
12311 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12312 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12313 signature_method_pair_matches_signature, (gpointer)sig);
12316 * indexed by MonoMethod pointers
12318 if (method->klass->image->runtime_invoke_direct_cache)
12319 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12320 if (method->klass->image->managed_wrapper_cache)
12321 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12322 if (method->klass->image->native_wrapper_cache)
12323 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12324 if (method->klass->image->remoting_invoke_cache)
12325 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12326 if (method->klass->image->synchronized_cache)
12327 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12328 if (method->klass->image->unbox_wrapper_cache)
12329 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12330 if (method->klass->image->cominterop_invoke_cache)
12331 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12332 if (method->klass->image->cominterop_wrapper_cache)
12333 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12334 if (method->klass->image->thunk_invoke_cache)
12335 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12336 if (method->klass->image->native_func_wrapper_aot_cache)
12337 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
12339 mono_marshal_unlock ();