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 guint32 gchandle = 0;
387 mono_marshal_lock ();
388 if (delegate_hash_table == NULL)
389 delegate_hash_table = delegate_hash_table_new ();
390 if (mono_gc_is_moving ())
391 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
392 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
393 mono_marshal_unlock ();
394 if (mono_gc_is_moving ())
395 mono_gchandle_free (gchandle);
399 delegate_hash_table_add (MonoDelegate *d)
402 guint32 old_gchandle;
404 mono_marshal_lock ();
405 if (delegate_hash_table == NULL)
406 delegate_hash_table = delegate_hash_table_new ();
407 if (mono_gc_is_moving ()) {
408 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
409 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
410 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
412 mono_gchandle_free (old_gchandle);
414 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
416 mono_marshal_unlock ();
420 * mono_marshal_use_aot_wrappers:
422 * Instructs this module to use AOT compatible wrappers.
425 mono_marshal_use_aot_wrappers (gboolean use)
427 use_aot_wrappers = use;
431 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
433 static MonoClass *UnmanagedFunctionPointerAttribute;
434 MonoCustomAttrInfo *cinfo;
435 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
437 if (!UnmanagedFunctionPointerAttribute)
438 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
440 /* The attribute is only available in Net 2.0 */
441 if (UnmanagedFunctionPointerAttribute) {
443 * The pinvoke attributes are stored in a real custom attribute so we have to
446 cinfo = mono_custom_attrs_from_class (klass);
447 if (cinfo && !mono_runtime_get_no_exec ()) {
448 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
450 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
453 mono_custom_attrs_free (cinfo);
459 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
467 mono_marshal_lock ();
468 if (delegate_hash_table == NULL)
469 delegate_hash_table = delegate_hash_table_new ();
471 if (mono_gc_is_moving ()) {
472 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
473 mono_marshal_unlock ();
475 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
479 d = g_hash_table_lookup (delegate_hash_table, ftn);
480 mono_marshal_unlock ();
483 /* This is a native function, so construct a delegate for it */
484 MonoMethodSignature *sig;
486 MonoMarshalSpec **mspecs;
487 MonoMethod *invoke = mono_get_delegate_invoke (klass);
488 MonoMethodPInvoke piinfo;
492 if (use_aot_wrappers) {
493 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
494 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
496 memset (&piinfo, 0, sizeof (piinfo));
497 parse_unmanaged_function_pointer_attr (klass, &piinfo);
499 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
500 mono_method_get_marshal_info (invoke, mspecs);
501 /* Freed below so don't alloc from mempool */
502 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
505 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
508 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
510 mono_metadata_free_marshal_spec (mspecs [i]);
515 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
516 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
519 if (d->object.vtable->domain != mono_domain_get ())
520 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
526 mono_delegate_free_ftnptr (MonoDelegate *delegate)
531 delegate_hash_table_remove (delegate);
533 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
535 if (!delegate->target) {
536 /* The wrapper method is shared between delegates -> no need to free it */
543 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
546 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
548 /*the target gchandle is the first entry after size and the wrapper itself.*/
549 gchandle = GPOINTER_TO_UINT (method_data [2]);
552 mono_gchandle_free (gchandle);
554 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
559 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
561 MonoDomain *domain = mono_domain_get ();
567 while (data [len]) len++;
569 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
573 mono_array_to_savearray (MonoArray *array)
578 g_assert_not_reached ();
583 mono_array_to_lparray (MonoArray *array)
585 gpointer *nativeArray = NULL;
586 int nativeArraySize = 0;
595 klass = array->obj.vtable->klass;
597 switch (klass->element_class->byval_arg.type) {
599 g_assert_not_reached ();
602 case MONO_TYPE_CLASS:
603 nativeArraySize = array->max_length;
604 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
605 for(i = 0; i < nativeArraySize; ++i)
606 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
610 case MONO_TYPE_BOOLEAN:
623 case MONO_TYPE_VALUETYPE:
627 case MONO_TYPE_GENERICINST:
628 case MONO_TYPE_OBJECT:
629 case MONO_TYPE_ARRAY:
630 case MONO_TYPE_SZARRAY:
631 case MONO_TYPE_STRING:
633 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
634 g_assert_not_reached ();
637 return array->vector;
641 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
652 klass = array->obj.vtable->klass;
654 switch (klass->element_class->byval_arg.type) {
655 case MONO_TYPE_CLASS:
656 for(i = 0; i < array->max_length; ++i)
657 mono_marshal_free_ccw(nativeArray[i]);
665 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
667 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
669 if (elclass == mono_defaults.byte_class) {
670 GError *error = NULL;
674 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
677 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
681 g_error_free (error);
684 g_assert_not_reached ();
688 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
690 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
692 if (elclass == mono_defaults.byte_class) {
694 GError *error = NULL;
696 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
698 MonoException *exc = mono_get_exception_argument ("string", error->message);
699 g_error_free (error);
700 mono_raise_exception (exc);
703 memcpy (native_arr, as, MIN (strlen (as), elnum));
706 g_assert_not_reached ();
711 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
713 GError *error = NULL;
723 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
725 if (items_written > mono_stringbuilder_capacity (sb))
726 items_written = mono_stringbuilder_capacity (sb);
729 if (! sb->str || sb->str == sb->cached_str)
730 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
732 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
733 sb->length = items_written;
734 sb->cached_str = NULL;
736 g_error_free (error);
742 mono_string_utf8_to_builder2 (char *text)
745 MonoStringBuilder *sb;
746 static MonoClass *string_builder_class;
747 static MonoMethod *sb_ctor;
754 if (!string_builder_class) {
755 MonoMethodDesc *desc;
757 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
758 g_assert (string_builder_class);
759 desc = mono_method_desc_new (":.ctor(int)", FALSE);
760 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
762 mono_method_desc_free (desc);
767 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
770 mono_runtime_invoke (sb_ctor, sb, args, &exc);
773 mono_string_utf8_to_builder (sb, text);
779 * FIXME: This routine does not seem to do what it seems to do
780 * the @text is never copied into the string builder
783 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
790 g_assert (mono_string_chars (sb->str) == text);
792 for (len = 0; text [len] != 0; ++len)
799 mono_string_utf16_to_builder2 (gunichar2 *text)
802 MonoStringBuilder *sb;
803 static MonoClass *string_builder_class;
804 static MonoMethod *sb_ctor;
811 if (!string_builder_class) {
812 MonoMethodDesc *desc;
814 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
815 g_assert (string_builder_class);
816 desc = mono_method_desc_new (":.ctor(int)", FALSE);
817 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
819 mono_method_desc_free (desc);
822 for (len = 0; text [len] != 0; ++len)
825 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
828 mono_runtime_invoke (sb_ctor, sb, args, &exc);
832 memcpy (mono_string_chars (sb->str), text, len * 2);
838 * mono_string_builder_to_utf8:
839 * @sb: the string builder
841 * Converts to utf8 the contents of the MonoStringBuilder.
843 * Returns: a utf8 string with the contents of the StringBuilder.
845 * The return value must be released with g_free.
848 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
850 GError *error = NULL;
851 gchar *tmp, *res = NULL;
856 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
858 * The sb could have been allocated with the default capacity and be empty.
859 * we need to alloc a buffer of the default capacity in this case.
861 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
862 sb->cached_str = NULL;
865 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
867 g_error_free (error);
868 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
870 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
871 memcpy (res, tmp, sb->length + 1);
879 * mono_string_builder_to_utf16:
880 * @sb: the string builder
882 * Converts to utf16 the contents of the MonoStringBuilder.
884 * Returns: a utf16 string with the contents of the StringBuilder.
886 * The return value must not be freed.
889 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
897 * The stringbuilder might not have ownership of this string. If this is
898 * the case, we must duplicate the string, so that we don't munge immutable
901 if (sb->str == sb->cached_str) {
903 * The sb could have been allocated with the default capacity and be empty.
904 * we need to alloc a buffer of the default capacity in this case.
906 if (sb->str->length == 0)
907 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
909 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
910 sb->cached_str = NULL;
914 *(mono_string_chars (sb->str)) = '\0';
916 return mono_string_chars (sb->str);
920 mono_string_to_lpstr (MonoString *s)
925 GError *error = NULL;
931 as = CoTaskMemAlloc (1);
936 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
938 MonoException *exc = mono_get_exception_argument ("string", error->message);
939 g_error_free (error);
940 mono_raise_exception(exc);
943 as = CoTaskMemAlloc (len + 1);
944 memcpy (as, tmp, len + 1);
949 return mono_string_to_utf8 (s);
954 mono_string_to_ansibstr (MonoString *string_obj)
956 g_error ("UnmanagedMarshal.BStr is not implemented.");
961 * mono_string_to_byvalstr:
962 * @dst: Where to store the null-terminated utf8 decoded string.
963 * @src: the MonoString to copy.
964 * @size: the maximum number of bytes to copy.
966 * Copies the MonoString pointed to by @src as a utf8 string
967 * into @dst, it copies at most @size bytes into the destination.
970 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
975 g_assert (dst != NULL);
978 memset (dst, 0, size);
982 s = mono_string_to_utf8 (src);
983 len = MIN (size, strlen (s));
986 memcpy (dst, s, len);
991 * mono_string_to_byvalwstr:
992 * @dst: Where to store the null-terminated utf16 decoded string.
993 * @src: the MonoString to copy.
994 * @size: the maximum number of bytes to copy.
996 * Copies the MonoString pointed to by @src as a utf16 string into
997 * @dst, it copies at most @size bytes into the destination (including
998 * a terminating 16-bit zero terminator).
1001 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1005 g_assert (dst != NULL);
1006 g_assert (size > 1);
1009 memset (dst, 0, size * 2);
1013 len = MIN (size, (mono_string_length (src)));
1014 memcpy (dst, mono_string_chars (src), size * 2);
1015 if (size <= mono_string_length (src))
1017 *((gunichar2 *) dst + len) = 0;
1021 mono_string_new_len_wrapper (const char *text, guint length)
1023 return mono_string_new_len (mono_domain_get (), text, length);
1027 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1030 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1031 mono_mb_emit_byte (mb, CEE_LDIND_I);
1032 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1033 mono_mb_emit_byte (mb, CEE_ADD);
1034 mono_mb_emit_byte (mb, CEE_LDIND_I);
1035 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1036 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1037 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1038 pos = mono_mb_emit_branch (mb, branch_code);
1043 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1046 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1047 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1048 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1049 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1050 mono_mb_emit_icon (mb, -1);
1051 pos = mono_mb_emit_branch (mb, branch_code);
1056 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1058 static int offset = -1;
1062 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1064 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1065 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1066 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1067 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1068 mono_mb_emit_ldflda (mb, offset);
1069 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1070 mono_mb_emit_icon (mb, mask);
1071 mono_mb_emit_byte (mb, CEE_AND);
1072 mono_mb_emit_icon (mb, 0);
1073 return mono_mb_emit_branch (mb, branch_code);
1077 * mono_mb_emit_exception_marshal_directive:
1079 * This function assumes ownership of MSG, which should be malloc-ed.
1082 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1087 s = mono_image_strdup (mb->method->klass->image, msg);
1092 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1096 mono_type_to_ldind (MonoType *type)
1102 switch (type->type) {
1104 return CEE_LDIND_I1;
1106 case MONO_TYPE_BOOLEAN:
1107 return CEE_LDIND_U1;
1109 return CEE_LDIND_I2;
1111 case MONO_TYPE_CHAR:
1112 return CEE_LDIND_U2;
1114 return CEE_LDIND_I4;
1116 return CEE_LDIND_U4;
1120 case MONO_TYPE_FNPTR:
1122 case MONO_TYPE_CLASS:
1123 case MONO_TYPE_STRING:
1124 case MONO_TYPE_OBJECT:
1125 case MONO_TYPE_SZARRAY:
1126 case MONO_TYPE_ARRAY:
1127 return CEE_LDIND_REF;
1130 return CEE_LDIND_I8;
1132 return CEE_LDIND_R4;
1134 return CEE_LDIND_R8;
1135 case MONO_TYPE_VALUETYPE:
1136 if (type->data.klass->enumtype) {
1137 type = mono_class_enum_basetype (type->data.klass);
1141 case MONO_TYPE_TYPEDBYREF:
1143 case MONO_TYPE_GENERICINST:
1144 type = &type->data.generic_class->container_class->byval_arg;
1147 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1153 mono_type_to_stind (MonoType *type)
1159 switch (type->type) {
1162 case MONO_TYPE_BOOLEAN:
1163 return CEE_STIND_I1;
1166 case MONO_TYPE_CHAR:
1167 return CEE_STIND_I2;
1170 return CEE_STIND_I4;
1174 case MONO_TYPE_FNPTR:
1176 case MONO_TYPE_CLASS:
1177 case MONO_TYPE_STRING:
1178 case MONO_TYPE_OBJECT:
1179 case MONO_TYPE_SZARRAY:
1180 case MONO_TYPE_ARRAY:
1181 return CEE_STIND_REF;
1184 return CEE_STIND_I8;
1186 return CEE_STIND_R4;
1188 return CEE_STIND_R8;
1189 case MONO_TYPE_VALUETYPE:
1190 if (type->data.klass->enumtype) {
1191 type = mono_class_enum_basetype (type->data.klass);
1195 case MONO_TYPE_TYPEDBYREF:
1197 case MONO_TYPE_GENERICINST:
1198 type = &type->data.generic_class->container_class->byval_arg;
1201 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1207 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1210 case MONO_MARSHAL_CONV_BOOL_I4:
1211 mono_mb_emit_ldloc (mb, 1);
1212 mono_mb_emit_ldloc (mb, 0);
1213 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1214 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1215 mono_mb_emit_byte (mb, 3);
1216 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1217 mono_mb_emit_byte (mb, CEE_BR_S);
1218 mono_mb_emit_byte (mb, 1);
1219 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1220 mono_mb_emit_byte (mb, CEE_STIND_I1);
1222 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1223 mono_mb_emit_ldloc (mb, 1);
1224 mono_mb_emit_ldloc (mb, 0);
1225 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1226 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1227 mono_mb_emit_byte (mb, 3);
1228 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1229 mono_mb_emit_byte (mb, CEE_BR_S);
1230 mono_mb_emit_byte (mb, 1);
1231 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1232 mono_mb_emit_byte (mb, CEE_STIND_I1);
1234 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1235 MonoClass *eklass = NULL;
1238 if (type->type == MONO_TYPE_SZARRAY) {
1239 eklass = type->data.klass;
1241 g_assert_not_reached ();
1244 esize = mono_class_native_size (eklass, NULL);
1246 /* create a new array */
1247 mono_mb_emit_ldloc (mb, 1);
1248 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1249 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1250 mono_mb_emit_byte (mb, CEE_STIND_I);
1252 if (eklass->blittable) {
1253 /* copy the elements */
1254 mono_mb_emit_ldloc (mb, 1);
1255 mono_mb_emit_byte (mb, CEE_LDIND_I);
1256 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1257 mono_mb_emit_byte (mb, CEE_ADD);
1258 mono_mb_emit_ldloc (mb, 0);
1259 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1260 mono_mb_emit_byte (mb, CEE_PREFIX1);
1261 mono_mb_emit_byte (mb, CEE_CPBLK);
1264 int array_var, src_var, dst_var, index_var;
1265 guint32 label2, label3;
1267 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1268 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1269 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1272 mono_mb_emit_ldloc (mb, 1);
1273 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1274 mono_mb_emit_stloc (mb, array_var);
1276 /* save the old src pointer */
1277 mono_mb_emit_ldloc (mb, 0);
1278 mono_mb_emit_stloc (mb, src_var);
1279 /* save the old dst pointer */
1280 mono_mb_emit_ldloc (mb, 1);
1281 mono_mb_emit_stloc (mb, dst_var);
1283 /* Emit marshalling loop */
1284 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1285 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1286 mono_mb_emit_stloc (mb, index_var);
1289 label2 = mono_mb_get_label (mb);
1290 mono_mb_emit_ldloc (mb, index_var);
1291 mono_mb_emit_ldloc (mb, array_var);
1292 mono_mb_emit_byte (mb, CEE_LDLEN);
1293 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1295 /* src is already set */
1298 mono_mb_emit_ldloc (mb, array_var);
1299 mono_mb_emit_ldloc (mb, index_var);
1300 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1301 mono_mb_emit_stloc (mb, 1);
1303 /* Do the conversion */
1304 emit_struct_conv (mb, eklass, TRUE);
1307 mono_mb_emit_add_to_local (mb, index_var, 1);
1309 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1311 mono_mb_patch_branch (mb, label3);
1313 /* restore the old src pointer */
1314 mono_mb_emit_ldloc (mb, src_var);
1315 mono_mb_emit_stloc (mb, 0);
1316 /* restore the old dst pointer */
1317 mono_mb_emit_ldloc (mb, dst_var);
1318 mono_mb_emit_stloc (mb, 1);
1322 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1323 MonoClass *eclass = mono_defaults.char_class;
1325 /* create a new array */
1326 mono_mb_emit_ldloc (mb, 1);
1327 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1328 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1329 mono_mb_emit_byte (mb, CEE_STIND_REF);
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1333 mono_mb_emit_ldloc (mb, 0);
1334 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1335 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1336 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1339 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_ldloc (mb, 0);
1342 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1343 mono_mb_emit_byte (mb, CEE_STIND_REF);
1345 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1346 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1347 mono_mb_emit_ldloc (mb, 1);
1348 mono_mb_emit_ldloc (mb, 0);
1349 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1350 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1352 mono_mb_emit_ldloc (mb, 1);
1353 mono_mb_emit_ldloc (mb, 0);
1354 mono_mb_emit_icall (mb, mono_string_from_utf16);
1356 mono_mb_emit_byte (mb, CEE_STIND_REF);
1358 case MONO_MARSHAL_CONV_STR_LPTSTR:
1359 mono_mb_emit_ldloc (mb, 1);
1360 mono_mb_emit_ldloc (mb, 0);
1361 mono_mb_emit_byte (mb, CEE_LDIND_I);
1363 mono_mb_emit_icall (mb, mono_string_from_utf16);
1365 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1367 mono_mb_emit_byte (mb, CEE_STIND_REF);
1369 case MONO_MARSHAL_CONV_STR_LPSTR:
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_ldloc (mb, 0);
1372 mono_mb_emit_byte (mb, CEE_LDIND_I);
1373 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1374 mono_mb_emit_byte (mb, CEE_STIND_REF);
1376 case MONO_MARSHAL_CONV_STR_LPWSTR:
1377 mono_mb_emit_ldloc (mb, 1);
1378 mono_mb_emit_ldloc (mb, 0);
1379 mono_mb_emit_byte (mb, CEE_LDIND_I);
1380 mono_mb_emit_icall (mb, mono_string_from_utf16);
1381 mono_mb_emit_byte (mb, CEE_STIND_REF);
1383 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1384 MonoClass *klass = mono_class_from_mono_type (type);
1385 int src_var, dst_var;
1387 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1388 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1390 /* *dst = new object */
1391 mono_mb_emit_ldloc (mb, 1);
1392 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1393 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1394 mono_mb_emit_byte (mb, CEE_STIND_REF);
1396 /* save the old src pointer */
1397 mono_mb_emit_ldloc (mb, 0);
1398 mono_mb_emit_stloc (mb, src_var);
1399 /* save the old dst pointer */
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_stloc (mb, dst_var);
1403 /* dst = pointer to newly created object data */
1404 mono_mb_emit_ldloc (mb, 1);
1405 mono_mb_emit_byte (mb, CEE_LDIND_I);
1406 mono_mb_emit_icon (mb, sizeof (MonoObject));
1407 mono_mb_emit_byte (mb, CEE_ADD);
1408 mono_mb_emit_stloc (mb, 1);
1410 emit_struct_conv (mb, klass, TRUE);
1412 /* restore the old src pointer */
1413 mono_mb_emit_ldloc (mb, src_var);
1414 mono_mb_emit_stloc (mb, 0);
1415 /* restore the old dst pointer */
1416 mono_mb_emit_ldloc (mb, dst_var);
1417 mono_mb_emit_stloc (mb, 1);
1420 case MONO_MARSHAL_CONV_DEL_FTN: {
1421 MonoClass *klass = mono_class_from_mono_type (type);
1423 mono_mb_emit_ldloc (mb, 1);
1424 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1425 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1426 mono_mb_emit_ldloc (mb, 0);
1427 mono_mb_emit_byte (mb, CEE_LDIND_I);
1428 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1429 mono_mb_emit_byte (mb, CEE_STIND_REF);
1432 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1433 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1437 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1438 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1439 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1440 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1442 #endif /* DISABLE_COM */
1444 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1446 * Passing SafeHandles as ref does not allow the unmanaged code
1447 * to change the SafeHandle value. If the value is changed,
1448 * we should issue a diagnostic exception (NotSupportedException)
1449 * that informs the user that changes to handles in unmanaged code
1452 * Since we currently have no access to the original
1453 * SafeHandle that was used during the marshalling,
1454 * for now we just ignore this, and ignore/discard any
1455 * changes that might have happened to the handle.
1460 case MONO_MARSHAL_CONV_HANDLEREF: {
1462 * Passing HandleRefs in a struct that is ref()ed does not
1463 * copy the values back to the HandleRef
1468 case MONO_MARSHAL_CONV_STR_BSTR:
1469 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1470 case MONO_MARSHAL_CONV_STR_TBSTR:
1471 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1473 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1475 mono_mb_emit_exception_marshal_directive (mb, msg);
1482 conv_to_icall (MonoMarshalConv conv)
1485 case MONO_MARSHAL_CONV_STR_LPWSTR:
1486 return mono_marshal_string_to_utf16;
1487 case MONO_MARSHAL_CONV_LPWSTR_STR:
1488 return mono_string_from_utf16;
1489 case MONO_MARSHAL_CONV_LPTSTR_STR:
1490 return mono_string_new_wrapper;
1491 case MONO_MARSHAL_CONV_LPSTR_STR:
1492 return mono_string_new_wrapper;
1493 case MONO_MARSHAL_CONV_STR_LPTSTR:
1495 return mono_marshal_string_to_utf16;
1497 return mono_string_to_lpstr;
1499 case MONO_MARSHAL_CONV_STR_LPSTR:
1500 return mono_string_to_lpstr;
1501 case MONO_MARSHAL_CONV_STR_BSTR:
1502 return mono_string_to_bstr;
1503 case MONO_MARSHAL_CONV_BSTR_STR:
1504 return mono_string_from_bstr;
1505 case MONO_MARSHAL_CONV_STR_TBSTR:
1506 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1507 return mono_string_to_ansibstr;
1508 case MONO_MARSHAL_CONV_SB_LPSTR:
1509 return mono_string_builder_to_utf8;
1510 case MONO_MARSHAL_CONV_SB_LPTSTR:
1512 return mono_string_builder_to_utf16;
1514 return mono_string_builder_to_utf8;
1516 case MONO_MARSHAL_CONV_SB_LPWSTR:
1517 return mono_string_builder_to_utf16;
1518 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1519 return mono_array_to_savearray;
1520 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1521 return mono_array_to_lparray;
1522 case MONO_MARSHAL_FREE_LPARRAY:
1523 return mono_free_lparray;
1524 case MONO_MARSHAL_CONV_DEL_FTN:
1525 return mono_delegate_to_ftnptr;
1526 case MONO_MARSHAL_CONV_FTN_DEL:
1527 return mono_ftnptr_to_delegate;
1528 case MONO_MARSHAL_CONV_LPSTR_SB:
1529 return mono_string_utf8_to_builder;
1530 case MONO_MARSHAL_CONV_LPTSTR_SB:
1532 return mono_string_utf16_to_builder;
1534 return mono_string_utf8_to_builder;
1536 case MONO_MARSHAL_CONV_LPWSTR_SB:
1537 return mono_string_utf16_to_builder;
1538 case MONO_MARSHAL_FREE_ARRAY:
1539 return mono_marshal_free_array;
1540 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1541 return mono_string_to_byvalstr;
1542 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1543 return mono_string_to_byvalwstr;
1545 g_assert_not_reached ();
1552 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1557 case MONO_MARSHAL_CONV_BOOL_I4:
1558 mono_mb_emit_ldloc (mb, 1);
1559 mono_mb_emit_ldloc (mb, 0);
1560 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1561 mono_mb_emit_byte (mb, CEE_STIND_I4);
1563 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
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_NEG);
1568 mono_mb_emit_byte (mb, CEE_STIND_I2);
1570 case MONO_MARSHAL_CONV_STR_LPWSTR:
1571 case MONO_MARSHAL_CONV_STR_LPSTR:
1572 case MONO_MARSHAL_CONV_STR_LPTSTR:
1573 case MONO_MARSHAL_CONV_STR_BSTR:
1574 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1575 case MONO_MARSHAL_CONV_STR_TBSTR: {
1578 /* free space if free == true */
1579 mono_mb_emit_ldloc (mb, 2);
1580 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1581 mono_mb_emit_ldloc (mb, 1);
1582 mono_mb_emit_byte (mb, CEE_LDIND_I);
1583 mono_mb_emit_icall (mb, g_free);
1584 mono_mb_patch_short_branch (mb, pos);
1586 mono_mb_emit_ldloc (mb, 1);
1587 mono_mb_emit_ldloc (mb, 0);
1588 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1589 mono_mb_emit_icall (mb, conv_to_icall (conv));
1590 mono_mb_emit_byte (mb, CEE_STIND_I);
1593 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1594 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1595 case MONO_MARSHAL_CONV_DEL_FTN:
1596 mono_mb_emit_ldloc (mb, 1);
1597 mono_mb_emit_ldloc (mb, 0);
1598 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1599 mono_mb_emit_icall (mb, conv_to_icall (conv));
1600 mono_mb_emit_byte (mb, CEE_STIND_I);
1602 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1603 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1606 mono_mb_emit_ldloc (mb, 1); /* dst */
1607 mono_mb_emit_ldloc (mb, 0);
1608 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1609 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1610 mono_mb_emit_icall (mb, conv_to_icall (conv));
1613 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1614 MonoClass *eklass = NULL;
1617 if (type->type == MONO_TYPE_SZARRAY) {
1618 eklass = type->data.klass;
1620 g_assert_not_reached ();
1623 if (eklass->valuetype)
1624 esize = mono_class_native_size (eklass, NULL);
1626 esize = sizeof (gpointer);
1628 mono_mb_emit_ldloc (mb, 0);
1629 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1630 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1632 if (eklass->blittable) {
1633 mono_mb_emit_ldloc (mb, 1);
1634 mono_mb_emit_ldloc (mb, 0);
1635 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1636 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1637 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1638 mono_mb_emit_byte (mb, CEE_PREFIX1);
1639 mono_mb_emit_byte (mb, CEE_CPBLK);
1641 int array_var, src_var, dst_var, index_var;
1642 guint32 label2, label3;
1644 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1645 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1646 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1649 mono_mb_emit_ldloc (mb, 0);
1650 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1651 mono_mb_emit_stloc (mb, array_var);
1653 /* save the old src pointer */
1654 mono_mb_emit_ldloc (mb, 0);
1655 mono_mb_emit_stloc (mb, src_var);
1656 /* save the old dst pointer */
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_stloc (mb, dst_var);
1660 /* Emit marshalling loop */
1661 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1662 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1663 mono_mb_emit_stloc (mb, index_var);
1666 label2 = mono_mb_get_label (mb);
1667 mono_mb_emit_ldloc (mb, index_var);
1668 mono_mb_emit_ldloc (mb, array_var);
1669 mono_mb_emit_byte (mb, CEE_LDLEN);
1670 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1673 mono_mb_emit_ldloc (mb, array_var);
1674 mono_mb_emit_ldloc (mb, index_var);
1675 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1676 mono_mb_emit_stloc (mb, 0);
1678 /* dst is already set */
1680 /* Do the conversion */
1681 emit_struct_conv (mb, eklass, FALSE);
1684 mono_mb_emit_add_to_local (mb, index_var, 1);
1686 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1688 mono_mb_patch_branch (mb, label3);
1690 /* restore the old src pointer */
1691 mono_mb_emit_ldloc (mb, src_var);
1692 mono_mb_emit_stloc (mb, 0);
1693 /* restore the old dst pointer */
1694 mono_mb_emit_ldloc (mb, dst_var);
1695 mono_mb_emit_stloc (mb, 1);
1698 mono_mb_patch_branch (mb, pos);
1701 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1702 mono_mb_emit_ldloc (mb, 0);
1703 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1704 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1706 mono_mb_emit_ldloc (mb, 1);
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1709 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1710 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1711 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1712 mono_mb_patch_short_branch (mb, pos);
1715 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1716 int src_var, dst_var;
1718 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1719 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1721 mono_mb_emit_ldloc (mb, 0);
1722 mono_mb_emit_byte (mb, CEE_LDIND_I);
1723 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1725 /* save the old src pointer */
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_stloc (mb, src_var);
1728 /* save the old dst pointer */
1729 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_stloc (mb, dst_var);
1732 /* src = pointer to object data */
1733 mono_mb_emit_ldloc (mb, 0);
1734 mono_mb_emit_byte (mb, CEE_LDIND_I);
1735 mono_mb_emit_icon (mb, sizeof (MonoObject));
1736 mono_mb_emit_byte (mb, CEE_ADD);
1737 mono_mb_emit_stloc (mb, 0);
1739 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1741 /* restore the old src pointer */
1742 mono_mb_emit_ldloc (mb, src_var);
1743 mono_mb_emit_stloc (mb, 0);
1744 /* restore the old dst pointer */
1745 mono_mb_emit_ldloc (mb, dst_var);
1746 mono_mb_emit_stloc (mb, 1);
1748 mono_mb_patch_branch (mb, pos);
1753 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1754 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1755 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1756 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1758 #endif /* DISABLE_COM */
1760 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1761 int dar_release_slot, pos;
1763 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1766 * The following is ifdefed-out, because I have no way of doing the
1767 * DangerousRelease when destroying the structure
1770 /* set release = false */
1771 mono_mb_emit_icon (mb, 0);
1772 mono_mb_emit_stloc (mb, dar_release_slot);
1773 if (!sh_dangerous_add_ref)
1774 init_safe_handle ();
1776 /* safehandle.DangerousAddRef (ref release) */
1777 mono_mb_emit_ldloc (mb, 0); /* the source */
1778 mono_mb_emit_byte (mb, CEE_LDIND_I);
1779 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1780 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1782 mono_mb_emit_ldloc (mb, 0);
1783 mono_mb_emit_byte (mb, CEE_LDIND_I);
1784 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1785 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1786 mono_mb_patch_branch (mb, pos);
1788 /* Pull the handle field from SafeHandle */
1789 mono_mb_emit_ldloc (mb, 1);
1790 mono_mb_emit_ldloc (mb, 0);
1791 mono_mb_emit_byte (mb, CEE_LDIND_I);
1792 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1793 mono_mb_emit_byte (mb, CEE_LDIND_I);
1794 mono_mb_emit_byte (mb, CEE_STIND_I);
1798 case MONO_MARSHAL_CONV_HANDLEREF: {
1799 mono_mb_emit_ldloc (mb, 1);
1800 mono_mb_emit_ldloc (mb, 0);
1801 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1802 mono_mb_emit_byte (mb, CEE_ADD);
1803 mono_mb_emit_byte (mb, CEE_LDIND_I);
1804 mono_mb_emit_byte (mb, CEE_STIND_I);
1809 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1810 MonoException *exc = mono_get_exception_not_implemented (msg);
1811 g_warning ("%s", msg);
1813 mono_raise_exception (exc);
1819 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1820 MonoMarshalNative string_encoding)
1822 MonoMarshalType *info;
1826 emit_struct_conv(mb, klass->parent, to_object);
1828 info = mono_marshal_load_type_info (klass);
1830 if (info->native_size == 0)
1833 if (klass->blittable) {
1834 int msize = mono_class_value_size (klass, NULL);
1835 g_assert (msize == info->native_size);
1836 mono_mb_emit_ldloc (mb, 1);
1837 mono_mb_emit_ldloc (mb, 0);
1838 mono_mb_emit_icon (mb, msize);
1839 mono_mb_emit_byte (mb, CEE_PREFIX1);
1840 mono_mb_emit_byte (mb, CEE_CPBLK);
1842 mono_mb_emit_add_to_local (mb, 0, msize);
1843 mono_mb_emit_add_to_local (mb, 1, msize);
1847 if (klass != mono_defaults.safehandle_class) {
1848 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1849 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1850 mono_type_full_name (&klass->byval_arg));
1851 mono_mb_emit_exception_marshal_directive (mb, msg);
1856 for (i = 0; i < info->num_fields; i++) {
1857 MonoMarshalNative ntype;
1858 MonoMarshalConv conv;
1859 MonoType *ftype = info->fields [i].field->type;
1862 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1864 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1867 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1870 msize = klass->instance_size - info->fields [i].field->offset;
1871 usize = info->native_size - info->fields [i].offset;
1873 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1874 usize = info->fields [i + 1].offset - info->fields [i].offset;
1877 if (klass != mono_defaults.safehandle_class){
1879 * FIXME: Should really check for usize==0 and msize>0, but we apply
1880 * the layout to the managed structure as well.
1883 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1884 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1885 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1886 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1887 "reference field at the same offset as another field.",
1888 mono_type_full_name (&klass->byval_arg));
1893 case MONO_MARSHAL_CONV_NONE: {
1896 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1897 ftype->type == MONO_TYPE_U) {
1898 mono_mb_emit_ldloc (mb, 1);
1899 mono_mb_emit_ldloc (mb, 0);
1900 mono_mb_emit_byte (mb, CEE_LDIND_I);
1901 mono_mb_emit_byte (mb, CEE_STIND_I);
1912 case MONO_TYPE_BOOLEAN:
1915 case MONO_TYPE_CHAR:
1921 mono_mb_emit_ldloc (mb, 1);
1922 mono_mb_emit_ldloc (mb, 0);
1923 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1925 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1926 mono_mb_emit_byte (mb, CEE_STIND_I2);
1928 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1929 mono_mb_emit_byte (mb, CEE_STIND_I1);
1932 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1933 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1936 case MONO_TYPE_VALUETYPE: {
1937 int src_var, dst_var;
1939 if (ftype->data.klass->enumtype) {
1940 ftype = mono_class_enum_basetype (ftype->data.klass);
1944 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1945 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1947 /* save the old src pointer */
1948 mono_mb_emit_ldloc (mb, 0);
1949 mono_mb_emit_stloc (mb, src_var);
1950 /* save the old dst pointer */
1951 mono_mb_emit_ldloc (mb, 1);
1952 mono_mb_emit_stloc (mb, dst_var);
1954 emit_struct_conv (mb, ftype->data.klass, to_object);
1956 /* restore the old src pointer */
1957 mono_mb_emit_ldloc (mb, src_var);
1958 mono_mb_emit_stloc (mb, 0);
1959 /* restore the old dst pointer */
1960 mono_mb_emit_ldloc (mb, dst_var);
1961 mono_mb_emit_stloc (mb, 1);
1964 case MONO_TYPE_OBJECT: {
1966 mono_init_com_types ();
1968 static MonoMethod *variant_clear = NULL;
1969 static MonoMethod *get_object_for_native_variant = NULL;
1972 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1973 if (!get_object_for_native_variant)
1974 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1975 mono_mb_emit_ldloc (mb, 1);
1976 mono_mb_emit_ldloc (mb, 0);
1977 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1978 mono_mb_emit_byte (mb, CEE_STIND_REF);
1980 mono_mb_emit_ldloc (mb, 0);
1981 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1984 static MonoMethod *get_native_variant_for_object = NULL;
1986 if (!get_native_variant_for_object)
1987 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1989 mono_mb_emit_ldloc (mb, 0);
1990 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1991 mono_mb_emit_ldloc (mb, 1);
1992 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1995 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1996 mono_mb_emit_exception_marshal_directive (mb, msg);
2002 g_warning ("marshaling type %02x not implemented", ftype->type);
2003 g_assert_not_reached ();
2008 int src_var, dst_var;
2010 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2011 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2013 /* save the old src pointer */
2014 mono_mb_emit_ldloc (mb, 0);
2015 mono_mb_emit_stloc (mb, src_var);
2016 /* save the old dst pointer */
2017 mono_mb_emit_ldloc (mb, 1);
2018 mono_mb_emit_stloc (mb, dst_var);
2021 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2023 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2025 /* restore the old src pointer */
2026 mono_mb_emit_ldloc (mb, src_var);
2027 mono_mb_emit_stloc (mb, 0);
2028 /* restore the old dst pointer */
2029 mono_mb_emit_ldloc (mb, dst_var);
2030 mono_mb_emit_stloc (mb, 1);
2035 mono_mb_emit_add_to_local (mb, 0, usize);
2036 mono_mb_emit_add_to_local (mb, 1, msize);
2038 mono_mb_emit_add_to_local (mb, 0, msize);
2039 mono_mb_emit_add_to_local (mb, 1, usize);
2045 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2047 emit_struct_conv_full (mb, klass, to_object, -1);
2051 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2053 /* Call DestroyStructure */
2054 /* FIXME: Only do this if needed */
2055 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2056 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2057 mono_mb_emit_ldloc (mb, struct_var);
2058 mono_mb_emit_icall (mb, mono_struct_delete_old);
2062 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2066 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2067 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2068 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2070 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2071 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2073 mono_mb_emit_icall (mb, checkpoint_func);
2075 mono_mb_patch_branch (mb, pos_noabort);
2079 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2081 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2084 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2088 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2090 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2094 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2096 emit_thread_interrupt_checkpoint (mb);
2099 static MonoAsyncResult *
2100 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2102 MonoMethodMessage *msg;
2103 MonoDelegate *async_callback;
2104 MonoMulticastDelegate *mcast_delegate;
2108 MonoMethod *method = NULL, *method2 = NULL;
2110 g_assert (delegate);
2111 mcast_delegate = (MonoMulticastDelegate *) delegate;
2112 if (mcast_delegate->prev != NULL)
2113 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2115 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2117 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2118 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2120 /* If the target is a proxy, make a direct call. Is proxy's work
2121 // to make the call asynchronous.
2123 MonoAsyncResult *ares;
2125 MonoArray *out_args;
2126 method = delegate->method;
2128 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2129 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2130 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2131 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2132 MONO_OBJECT_SETREF (msg, async_result, ares);
2133 msg->call_type = CallType_BeginInvoke;
2136 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2138 mono_raise_exception ((MonoException *) exc);
2143 klass = delegate->object.vtable->klass;
2145 method = mono_get_delegate_invoke (klass);
2146 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2149 g_assert (method != NULL);
2151 im = mono_get_delegate_invoke (method->klass);
2152 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2154 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2158 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2160 int i, params_var, tmp_var;
2162 /* allocate local (pointer) *params[] */
2163 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2164 /* allocate local (pointer) tmp */
2165 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2167 /* alloate space on stack to store an array of pointers to the arguments */
2168 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2169 mono_mb_emit_byte (mb, CEE_PREFIX1);
2170 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2171 mono_mb_emit_stloc (mb, params_var);
2174 mono_mb_emit_ldloc (mb, params_var);
2175 mono_mb_emit_stloc (mb, tmp_var);
2177 if (save_this && sig->hasthis) {
2178 mono_mb_emit_ldloc (mb, tmp_var);
2179 mono_mb_emit_ldarg_addr (mb, 0);
2180 mono_mb_emit_byte (mb, CEE_STIND_I);
2181 /* tmp = tmp + sizeof (gpointer) */
2182 if (sig->param_count)
2183 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2187 for (i = 0; i < sig->param_count; i++) {
2188 mono_mb_emit_ldloc (mb, tmp_var);
2189 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2190 mono_mb_emit_byte (mb, CEE_STIND_I);
2191 /* tmp = tmp + sizeof (gpointer) */
2192 if (i < (sig->param_count - 1))
2193 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2200 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2204 GString *res = g_string_new ("");
2207 g_string_append (res, prefix);
2208 g_string_append_c (res, '_');
2211 mono_type_get_desc (res, sig->ret, FALSE);
2214 g_string_append (res, "__this__");
2216 for (i = 0; i < sig->param_count; ++i) {
2217 g_string_append_c (res, '_');
2218 mono_type_get_desc (res, sig->params [i], FALSE);
2221 g_string_free (res, FALSE);
2226 * mono_marshal_get_string_encoding:
2228 * Return the string encoding which should be used for a given parameter.
2230 static MonoMarshalNative
2231 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2233 /* First try the parameter marshal info */
2235 if (spec->native == MONO_NATIVE_LPARRAY) {
2236 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2237 return spec->data.array_data.elem_type;
2240 return spec->native;
2244 return MONO_NATIVE_LPSTR;
2246 /* Then try the method level marshal info */
2247 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2248 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2249 return MONO_NATIVE_LPSTR;
2250 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2251 return MONO_NATIVE_LPWSTR;
2252 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2254 return MONO_NATIVE_LPWSTR;
2256 return MONO_NATIVE_LPSTR;
2259 return MONO_NATIVE_LPSTR;
2263 static MonoMarshalConv
2264 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2266 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2269 case MONO_NATIVE_LPWSTR:
2270 return MONO_MARSHAL_CONV_STR_LPWSTR;
2271 case MONO_NATIVE_LPSTR:
2272 case MONO_NATIVE_VBBYREFSTR:
2273 return MONO_MARSHAL_CONV_STR_LPSTR;
2274 case MONO_NATIVE_LPTSTR:
2275 return MONO_MARSHAL_CONV_STR_LPTSTR;
2276 case MONO_NATIVE_BSTR:
2277 return MONO_MARSHAL_CONV_STR_BSTR;
2283 static MonoMarshalConv
2284 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2286 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2289 case MONO_NATIVE_LPWSTR:
2290 return MONO_MARSHAL_CONV_SB_LPWSTR;
2292 case MONO_NATIVE_LPSTR:
2293 return MONO_MARSHAL_CONV_SB_LPSTR;
2295 case MONO_NATIVE_LPTSTR:
2296 return MONO_MARSHAL_CONV_SB_LPTSTR;
2303 static MonoMarshalConv
2304 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2306 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2311 case MONO_NATIVE_LPWSTR:
2313 return MONO_MARSHAL_CONV_LPWSTR_STR;
2314 case MONO_NATIVE_LPSTR:
2315 case MONO_NATIVE_VBBYREFSTR:
2316 return MONO_MARSHAL_CONV_LPSTR_STR;
2317 case MONO_NATIVE_LPTSTR:
2318 return MONO_MARSHAL_CONV_LPTSTR_STR;
2319 case MONO_NATIVE_BSTR:
2320 return MONO_MARSHAL_CONV_BSTR_STR;
2326 static MonoMarshalConv
2327 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2329 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2334 case MONO_NATIVE_LPWSTR:
2336 * mono_string_builder_to_utf16 does not allocate a
2337 * new buffer, so no need to free it.
2340 return MONO_MARSHAL_CONV_LPWSTR_SB;
2341 case MONO_NATIVE_LPSTR:
2342 return MONO_MARSHAL_CONV_LPSTR_SB;
2344 case MONO_NATIVE_LPTSTR:
2345 return MONO_MARSHAL_CONV_LPTSTR_SB;
2353 * Return whenever a field of a native structure or an array member needs to
2357 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2359 MonoMarshalNative encoding;
2360 MonoMarshalConv conv;
2363 case MONO_TYPE_VALUETYPE:
2364 /* FIXME: Optimize this */
2366 case MONO_TYPE_OBJECT:
2367 case MONO_TYPE_CLASS:
2368 if (t->data.klass == mono_defaults.stringbuilder_class) {
2370 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2374 case MONO_TYPE_STRING:
2375 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2376 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2383 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2386 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2389 mono_marshal_lock ();
2392 g_hash_table_new (hash_func, equal_func);
2393 mono_memory_barrier ();
2396 mono_marshal_unlock ();
2402 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2405 mono_marshal_lock ();
2408 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2409 mono_memory_barrier ();
2412 mono_marshal_unlock ();
2418 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2420 return get_cache (var, hash_func, equal_func);
2424 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2428 mono_marshal_lock ();
2429 res = g_hash_table_lookup (cache, key);
2430 mono_marshal_unlock ();
2434 /* Create the method from the builder and place it in the cache */
2436 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2437 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2442 mono_marshal_lock ();
2443 res = g_hash_table_lookup (cache, key);
2444 mono_marshal_unlock ();
2447 newm = mono_mb_create_method (mb, sig, max_stack);
2448 mono_marshal_lock ();
2449 res = g_hash_table_lookup (cache, key);
2452 g_hash_table_insert (cache, key, res);
2453 mono_marshal_set_wrapper_info (res, key);
2454 mono_marshal_unlock ();
2456 mono_marshal_unlock ();
2457 mono_free_method (newm);
2465 static inline MonoMethod*
2466 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2468 MonoMethod *res = NULL;
2469 MonoRemotingMethods *wrps;
2471 mono_marshal_lock ();
2472 if (method->klass->image->remoting_invoke_cache)
2473 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2478 switch (wrapper_type) {
2479 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2480 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2481 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2482 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2486 /* it is important to do the unlock after the load from wrps, since in
2487 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2488 * to take the loader lock and some other thread may set the fields.
2490 mono_marshal_unlock ();
2494 /* Create the method from the builder and place it in the cache */
2495 static inline MonoMethod*
2496 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2497 MonoMethodSignature *sig, int max_stack)
2499 MonoMethod **res = NULL;
2500 MonoRemotingMethods *wrps;
2501 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2503 mono_marshal_lock ();
2504 wrps = g_hash_table_lookup (cache, key);
2506 wrps = g_new0 (MonoRemotingMethods, 1);
2507 g_hash_table_insert (cache, key, wrps);
2510 switch (mb->method->wrapper_type) {
2511 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2512 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2513 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2514 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2515 default: g_assert_not_reached (); break;
2517 mono_marshal_unlock ();
2521 newm = mono_mb_create_method (mb, sig, max_stack);
2523 mono_marshal_lock ();
2526 mono_marshal_set_wrapper_info (*res, key);
2527 mono_marshal_unlock ();
2529 mono_marshal_unlock ();
2530 mono_free_method (newm);
2538 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2541 int wrapper_type = wrapper->wrapper_type;
2544 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2547 switch (wrapper_type) {
2548 case MONO_WRAPPER_REMOTING_INVOKE:
2549 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2550 case MONO_WRAPPER_XDOMAIN_INVOKE:
2551 case MONO_WRAPPER_SYNCHRONIZED:
2552 res = mono_marshal_get_wrapper_info (wrapper);
2556 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2557 info = mono_marshal_get_wrapper_info (wrapper);
2558 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT))
2559 return info->d.managed_to_native.method;
2562 case MONO_WRAPPER_RUNTIME_INVOKE:
2563 info = mono_marshal_get_wrapper_info (wrapper);
2564 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2565 return info->d.runtime_invoke.method;
2574 * mono_marshal_get_wrapper_info:
2576 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2577 * returned depends on the wrapper type. It is usually a method, a class, or a
2578 * WrapperInfo structure.
2581 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2583 g_assert (wrapper->wrapper_type);
2585 return mono_method_get_wrapper_data (wrapper, 1);
2589 * mono_marshal_set_wrapper_info:
2591 * Store an arbitrary pointer inside the wrapper which is retrievable by
2592 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2593 * wrapper (method->wrapper_type).
2596 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2600 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2603 datav = ((MonoMethodWrapper *)method)->method_data;
2608 mono_wrapper_info_create (MonoMethod *wrapper, WrapperSubtype subtype)
2612 info = mono_image_alloc0 (wrapper->klass->image, sizeof (WrapperInfo));
2613 info->subtype = subtype;
2618 * get_wrapper_target_class:
2620 * Return the class where a wrapper method should be placed.
2623 get_wrapper_target_class (MonoImage *image)
2629 * - can't put all wrappers into an mscorlib class, because they reference
2630 * metadata (signature) so they should be put into the same image as the
2631 * method they wrap, so they are unloaded together.
2632 * - putting them into a class with a type initalizer could cause the
2633 * initializer to be executed which can be a problem if the wrappers are
2635 * - putting them into an inflated class can cause problems if the the
2636 * class is deleted because it references an image which is unloaded.
2637 * To avoid these problems, we put the wrappers into the <Module> class of
2641 klass = ((MonoDynamicImage*)image)->wrappers_type;
2643 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2650 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2652 MonoMethodSignature *sig;
2653 MonoMethodBuilder *mb;
2659 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2660 !strcmp (method->name, "BeginInvoke"));
2662 sig = mono_signature_no_pinvoke (method);
2664 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2665 (GHashFunc)mono_signature_hash,
2666 (GCompareFunc)mono_metadata_signature_equal);
2667 if ((res = mono_marshal_find_in_cache (cache, sig)))
2670 g_assert (sig->hasthis);
2672 name = mono_signature_to_name (sig, "begin_invoke");
2673 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2676 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2678 mono_mb_emit_ldarg (mb, 0);
2679 mono_mb_emit_ldloc (mb, params_var);
2680 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2681 mono_mb_emit_byte (mb, CEE_RET);
2683 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2689 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2691 MonoDomain *domain = mono_domain_get ();
2692 MonoAsyncResult *ares;
2693 MonoMethod *method = NULL;
2694 MonoMethodSignature *sig;
2695 MonoMethodMessage *msg;
2696 MonoObject *res, *exc;
2697 MonoArray *out_args;
2700 g_assert (delegate);
2702 if (!delegate->method_info) {
2703 g_assert (delegate->method);
2704 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2707 if (!delegate->method_info || !delegate->method_info->method)
2708 g_assert_not_reached ();
2710 klass = delegate->object.vtable->klass;
2712 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2713 g_assert (method != NULL);
2715 sig = mono_signature_no_pinvoke (method);
2717 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2719 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2721 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."));
2725 if (ares->async_delegate != (MonoObject*)delegate) {
2726 mono_raise_exception (mono_get_exception_invalid_operation (
2727 "The IAsyncResult object provided does not match this delegate."));
2731 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2732 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2733 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2734 mono_message_init (domain, msg, delegate->method_info, NULL);
2735 msg->call_type = CallType_EndInvoke;
2736 MONO_OBJECT_SETREF (msg, async_result, ares);
2737 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2739 res = mono_thread_pool_finish (ares, &out_args, &exc);
2743 if (((MonoException*)exc)->stack_trace) {
2744 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2746 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2748 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2751 mono_raise_exception ((MonoException*)exc);
2754 mono_method_return_message_restore (method, params, out_args);
2759 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2761 MonoType *t = mono_type_get_underlying_type (return_type);
2763 if (return_type->byref)
2764 return_type = &mono_defaults.int_class->byval_arg;
2767 case MONO_TYPE_VOID:
2768 g_assert_not_reached ();
2771 case MONO_TYPE_STRING:
2772 case MONO_TYPE_CLASS:
2773 case MONO_TYPE_OBJECT:
2774 case MONO_TYPE_ARRAY:
2775 case MONO_TYPE_SZARRAY:
2779 case MONO_TYPE_BOOLEAN:
2782 case MONO_TYPE_CHAR:
2792 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2793 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2795 case MONO_TYPE_GENERICINST:
2796 if (!mono_type_generic_inst_is_valuetype (t))
2799 case MONO_TYPE_VALUETYPE: {
2800 MonoClass *klass = mono_class_from_mono_type (return_type);
2801 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2802 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2806 g_warning ("type 0x%x not handled", return_type->type);
2807 g_assert_not_reached ();
2810 mono_mb_emit_byte (mb, CEE_RET);
2814 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2816 MonoMethodSignature *sig;
2817 MonoMethodBuilder *mb;
2823 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2824 !strcmp (method->name, "EndInvoke"));
2826 sig = mono_signature_no_pinvoke (method);
2828 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2829 (GHashFunc)mono_signature_hash,
2830 (GCompareFunc)mono_metadata_signature_equal);
2831 if ((res = mono_marshal_find_in_cache (cache, sig)))
2834 g_assert (sig->hasthis);
2836 name = mono_signature_to_name (sig, "end_invoke");
2837 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2840 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2842 mono_mb_emit_ldarg (mb, 0);
2843 mono_mb_emit_ldloc (mb, params_var);
2844 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2846 if (sig->ret->type == MONO_TYPE_VOID) {
2847 mono_mb_emit_byte (mb, CEE_POP);
2848 mono_mb_emit_byte (mb, CEE_RET);
2850 mono_mb_emit_restore_result (mb, sig->ret);
2852 res = mono_mb_create_and_cache (cache, sig,
2853 mb, sig, sig->param_count + 16);
2860 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2862 MonoMethodMessage *msg;
2863 MonoTransparentProxy *this;
2864 MonoObject *res, *exc;
2865 MonoArray *out_args;
2867 this = *((MonoTransparentProxy **)params [0]);
2870 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2872 /* skip the this pointer */
2875 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2878 MonoMethodSignature *sig = mono_method_signature (method);
2879 int count = sig->param_count;
2880 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2882 for (i=0; i<count; i++) {
2883 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2884 if (class->valuetype) {
2885 if (sig->params [i]->byref) {
2886 mparams[i] = *((gpointer *)params [i]);
2888 /* runtime_invoke expects a boxed instance */
2889 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2890 mparams[i] = mono_nullable_box (params [i], class);
2892 mparams[i] = params [i];
2895 mparams[i] = *((gpointer**)params [i]);
2899 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2902 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2904 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2907 mono_raise_exception ((MonoException *)exc);
2909 mono_method_return_message_restore (method, params, out_args);
2915 mono_marshal_get_remoting_invoke (MonoMethod *method)
2917 MonoMethodSignature *sig;
2918 MonoMethodBuilder *mb;
2924 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2927 /* 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) {
2934 return mono_cominterop_get_invoke (method);
2939 sig = mono_signature_no_pinvoke (method);
2941 /* we cant remote methods without this pointer */
2945 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2948 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2949 mb->method->save_lmf = 1;
2951 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2953 mono_mb_emit_ptr (mb, method);
2954 mono_mb_emit_ldloc (mb, params_var);
2955 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2956 emit_thread_interrupt_checkpoint (mb);
2958 if (sig->ret->type == MONO_TYPE_VOID) {
2959 mono_mb_emit_byte (mb, CEE_POP);
2960 mono_mb_emit_byte (mb, CEE_RET);
2962 mono_mb_emit_restore_result (mb, sig->ret);
2965 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2971 /* mono_get_xdomain_marshal_type()
2972 * Returns the kind of marshalling that a type needs for cross domain calls.
2974 static MonoXDomainMarshalType
2975 mono_get_xdomain_marshal_type (MonoType *t)
2978 case MONO_TYPE_VOID:
2979 g_assert_not_reached ();
2983 case MONO_TYPE_BOOLEAN:
2986 case MONO_TYPE_CHAR:
2993 return MONO_MARSHAL_NONE;
2994 case MONO_TYPE_STRING:
2995 return MONO_MARSHAL_COPY;
2996 case MONO_TYPE_ARRAY:
2997 case MONO_TYPE_SZARRAY: {
2998 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2999 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3000 return MONO_MARSHAL_COPY;
3005 return MONO_MARSHAL_SERIALIZE;
3009 /* mono_marshal_xdomain_copy_value
3010 * Makes a copy of "val" suitable for the current domain.
3013 mono_marshal_xdomain_copy_value (MonoObject *val)
3016 if (val == NULL) return NULL;
3018 domain = mono_domain_get ();
3020 switch (mono_object_class (val)->byval_arg.type) {
3021 case MONO_TYPE_VOID:
3022 g_assert_not_reached ();
3026 case MONO_TYPE_BOOLEAN:
3029 case MONO_TYPE_CHAR:
3035 case MONO_TYPE_R8: {
3036 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3038 case MONO_TYPE_STRING: {
3039 MonoString *str = (MonoString *) val;
3040 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3042 case MONO_TYPE_ARRAY:
3043 case MONO_TYPE_SZARRAY: {
3045 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3046 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3047 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3048 if (mt == MONO_MARSHAL_COPY) {
3049 int i, len = mono_array_length (acopy);
3050 for (i = 0; i < len; i++) {
3051 MonoObject *item = mono_array_get (acopy, gpointer, i);
3052 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3055 return (MonoObject *) acopy;
3059 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3060 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3061 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3062 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3063 newsb->length = oldsb->length;
3064 newsb->max_capacity = (gint32)0x7fffffff;
3065 return (MonoObject *) newsb;
3070 /* mono_marshal_xdomain_copy_out_value()
3071 * Copies the contents of the src instance into the dst instance. src and dst
3072 * must have the same type, and if they are arrays, the same size.
3075 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3077 if (src == NULL || dst == NULL) return;
3079 g_assert (mono_object_class (src) == mono_object_class (dst));
3081 switch (mono_object_class (src)->byval_arg.type) {
3082 case MONO_TYPE_ARRAY:
3083 case MONO_TYPE_SZARRAY: {
3084 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3085 if (mt == MONO_MARSHAL_SERIALIZE) return;
3086 if (mt == MONO_MARSHAL_COPY) {
3087 int i, len = mono_array_length ((MonoArray *)dst);
3088 for (i = 0; i < len; i++) {
3089 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3090 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3093 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3099 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3100 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3101 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3103 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)));
3104 dst_sb->cached_str = NULL;
3105 dst_sb->length = src_sb->length;
3110 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3112 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3113 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3117 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3119 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3122 /* mono_marshal_supports_fast_xdomain()
3123 * Returns TRUE if the method can use the fast xdomain wrapper.
3126 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3128 return !method->klass->contextbound &&
3129 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3133 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3135 MonoDomain *current_domain = mono_domain_get ();
3136 MonoDomain *domain = mono_domain_get_by_id (id);
3138 if (!domain || !mono_domain_set (domain, FALSE))
3139 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3142 mono_thread_push_appdomain_ref (domain);
3144 mono_thread_pop_appdomain_ref ();
3146 return current_domain->domain_id;
3150 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3152 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3155 /* mono_marshal_emit_load_domain_method ()
3156 * Loads into the stack a pointer to the code of the provided method for
3157 * the current domain.
3160 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3162 /* We need a pointer to the method for the running domain (not the domain
3163 * that compiles the method).
3165 mono_mb_emit_ptr (mb, method);
3166 mono_mb_emit_icall (mb, mono_compile_method);
3169 /* mono_marshal_check_domain_image ()
3170 * Returns TRUE if the image is loaded in the specified
3171 * application domain.
3174 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3179 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3183 mono_domain_assemblies_lock (domain);
3184 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3186 if (ass->image == image)
3189 mono_domain_assemblies_unlock (domain);
3194 /* mono_marshal_get_xappdomain_dispatch ()
3195 * Generates a method that dispatches a method call from another domain into
3196 * the current domain.
3199 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3201 MonoMethodSignature *sig, *csig;
3202 MonoMethodBuilder *mb;
3204 int i, j, param_index, copy_locals_base;
3205 MonoClass *ret_class = NULL;
3206 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3207 MonoExceptionClause *main_clause;
3209 gboolean copy_return;
3211 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3214 sig = mono_method_signature (method);
3215 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3218 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3219 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3220 csig->params [j++] = &byte_array_class->this_arg;
3221 csig->params [j++] = &byte_array_class->this_arg;
3222 for (i = 0; i < sig->param_count; i++) {
3223 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3224 csig->params [j++] = sig->params [i];
3227 csig->ret = sig->ret;
3229 csig->ret = &mono_defaults.void_class->byval_arg;
3231 csig->hasthis = FALSE;
3233 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3234 mb->method->save_lmf = 1;
3238 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3239 if (complex_count > 0)
3240 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3241 if (sig->ret->type != MONO_TYPE_VOID) {
3242 loc_return = mono_mb_add_local (mb, sig->ret);
3243 ret_class = mono_class_from_mono_type (sig->ret);
3248 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3249 main_clause->try_offset = mono_mb_get_label (mb);
3251 /* Clean the call context */
3253 mono_mb_emit_byte (mb, CEE_LDNULL);
3254 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3255 mono_mb_emit_byte (mb, CEE_POP);
3257 /* Deserialize call data */
3259 mono_mb_emit_ldarg (mb, 1);
3260 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3261 mono_mb_emit_byte (mb, CEE_DUP);
3262 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3264 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3265 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3267 if (complex_count > 0)
3268 mono_mb_emit_stloc (mb, loc_array);
3270 mono_mb_emit_byte (mb, CEE_POP);
3272 mono_mb_patch_short_branch (mb, pos);
3274 /* Get the target object */
3276 mono_mb_emit_ldarg (mb, 0);
3277 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3279 /* Load the arguments */
3281 copy_locals_base = mb->locals;
3282 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3284 for (i = 0; i < sig->param_count; i++) {
3285 MonoType *pt = sig->params [i];
3286 MonoClass *pclass = mono_class_from_mono_type (pt);
3287 switch (marshal_types [i]) {
3288 case MONO_MARSHAL_SERIALIZE: {
3289 /* take the value from the serialized array */
3290 mono_mb_emit_ldloc (mb, loc_array);
3291 mono_mb_emit_icon (mb, j++);
3293 if (pclass->valuetype) {
3294 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3295 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3297 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3300 if (pclass->valuetype) {
3301 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3302 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3303 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3305 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3306 if (pclass != mono_defaults.object_class) {
3307 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3313 case MONO_MARSHAL_COPY_OUT: {
3314 /* Keep a local copy of the value since we need to copy it back after the call */
3315 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3316 mono_mb_emit_ldarg (mb, param_index++);
3317 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3318 mono_mb_emit_byte (mb, CEE_DUP);
3319 mono_mb_emit_stloc (mb, copy_local);
3322 case MONO_MARSHAL_COPY: {
3323 mono_mb_emit_ldarg (mb, param_index);
3325 mono_mb_emit_byte (mb, CEE_DUP);
3326 mono_mb_emit_byte (mb, CEE_DUP);
3327 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3328 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3329 mono_mb_emit_byte (mb, CEE_STIND_REF);
3331 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3336 case MONO_MARSHAL_NONE:
3337 mono_mb_emit_ldarg (mb, param_index++);
3342 /* Make the call to the real object */
3344 emit_thread_force_interrupt_checkpoint (mb);
3346 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3348 if (sig->ret->type != MONO_TYPE_VOID)
3349 mono_mb_emit_stloc (mb, loc_return);
3351 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3355 for (i = 0; i < sig->param_count; i++) {
3356 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3357 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3358 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3359 mono_mb_emit_ldarg (mb, param_index);
3360 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3365 /* Serialize the return values */
3367 if (complex_out_count > 0) {
3368 /* Reset parameters in the array that don't need to be serialized back */
3370 for (i = 0; i < sig->param_count; i++) {
3371 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3372 if (!sig->params [i]->byref) {
3373 mono_mb_emit_ldloc (mb, loc_array);
3374 mono_mb_emit_icon (mb, j);
3375 mono_mb_emit_byte (mb, CEE_LDNULL);
3376 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3381 /* Add the return value to the array */
3383 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3384 mono_mb_emit_ldloc (mb, loc_array);
3385 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3386 mono_mb_emit_ldloc (mb, loc_return);
3388 g_assert (ret_class); /*FIXME properly fail here*/
3389 if (ret_class->valuetype) {
3390 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3392 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3397 mono_mb_emit_ldarg (mb, 1);
3398 mono_mb_emit_ldloc (mb, loc_array);
3399 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3400 mono_mb_emit_byte (mb, CEE_STIND_REF);
3401 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3402 mono_mb_emit_ldarg (mb, 1);
3403 mono_mb_emit_ldloc (mb, loc_return);
3404 if (ret_class->valuetype) {
3405 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3407 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3408 mono_mb_emit_byte (mb, CEE_STIND_REF);
3410 mono_mb_emit_ldarg (mb, 1);
3411 mono_mb_emit_byte (mb, CEE_LDNULL);
3412 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3413 mono_mb_emit_byte (mb, CEE_STIND_REF);
3416 mono_mb_emit_ldarg (mb, 2);
3417 mono_mb_emit_byte (mb, CEE_LDNULL);
3418 mono_mb_emit_byte (mb, CEE_STIND_REF);
3419 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3421 /* Main exception catch */
3422 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3423 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3424 main_clause->data.catch_class = mono_defaults.object_class;
3427 main_clause->handler_offset = mono_mb_get_label (mb);
3428 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3429 mono_mb_emit_stloc (mb, loc_serialized_exc);
3430 mono_mb_emit_ldarg (mb, 2);
3431 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3432 mono_mb_emit_byte (mb, CEE_STIND_REF);
3433 mono_mb_emit_branch (mb, CEE_LEAVE);
3434 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3437 mono_mb_patch_branch (mb, pos_leave);
3440 mono_mb_emit_ldloc (mb, loc_return);
3442 mono_mb_emit_byte (mb, CEE_RET);
3444 mono_mb_set_clauses (mb, 1, main_clause);
3446 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3452 /* mono_marshal_get_xappdomain_invoke ()
3453 * Generates a fast remoting wrapper for cross app domain calls.
3456 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3458 MonoMethodSignature *sig;
3459 MonoMethodBuilder *mb;
3461 int i, j, complex_count, complex_out_count, copy_locals_base;
3463 MonoClass *ret_class = NULL;
3464 MonoMethod *xdomain_method;
3465 int ret_marshal_type = MONO_MARSHAL_NONE;
3466 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3467 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3468 int pos, pos_dispatch, pos_noex;
3469 gboolean copy_return = FALSE;
3473 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3476 /* we cant remote methods without this pointer */
3477 if (!mono_method_signature (method)->hasthis)
3480 if (!mono_marshal_supports_fast_xdomain (method))
3481 return mono_marshal_get_remoting_invoke (method);
3483 mono_remoting_marshal_init ();
3485 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3488 sig = mono_signature_no_pinvoke (method);
3490 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3491 mb->method->save_lmf = 1;
3493 /* Count the number of parameters that need to be serialized */
3495 marshal_types = alloca (sizeof (int) * sig->param_count);
3496 complex_count = complex_out_count = 0;
3497 for (i = 0; i < sig->param_count; i++) {
3498 MonoType *ptype = sig->params[i];
3499 int mt = mono_get_xdomain_marshal_type (ptype);
3501 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3502 * the copy will be made by reusing the original object instance
3504 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3505 mt = MONO_MARSHAL_COPY_OUT;
3506 else if (mt == MONO_MARSHAL_SERIALIZE) {
3508 if (ptype->byref) complex_out_count++;
3510 marshal_types [i] = mt;
3513 if (sig->ret->type != MONO_TYPE_VOID) {
3514 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3515 ret_class = mono_class_from_mono_type (sig->ret);
3516 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3521 if (complex_count > 0)
3522 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3523 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3524 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3526 loc_return = mono_mb_add_local (mb, sig->ret);
3527 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3528 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3529 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3530 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3532 /* Save thread domain data */
3534 mono_mb_emit_icall (mb, mono_context_get);
3535 mono_mb_emit_byte (mb, CEE_DUP);
3536 mono_mb_emit_stloc (mb, loc_context);
3538 /* If the thread is not running in the default context, it needs to go
3539 * through the whole remoting sink, since the context is going to change
3541 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3542 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3544 /* Another case in which the fast path can't be used: when the target domain
3545 * has a different image for the same assembly.
3548 /* Get the target domain id */
3550 mono_mb_emit_ldarg (mb, 0);
3551 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3552 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3553 mono_mb_emit_byte (mb, CEE_DUP);
3554 mono_mb_emit_stloc (mb, loc_real_proxy);
3556 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3557 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3558 mono_mb_emit_stloc (mb, loc_domainid);
3560 /* Check if the target domain has the same image for the required assembly */
3562 mono_mb_emit_ldloc (mb, loc_domainid);
3563 mono_mb_emit_ptr (mb, method->klass->image);
3564 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3565 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3567 /* Use the whole remoting sink to dispatch this message */
3569 mono_mb_patch_short_branch (mb, pos);
3571 mono_mb_emit_ldarg (mb, 0);
3572 for (i = 0; i < sig->param_count; i++)
3573 mono_mb_emit_ldarg (mb, i + 1);
3575 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3576 mono_mb_emit_byte (mb, CEE_RET);
3577 mono_mb_patch_short_branch (mb, pos_dispatch);
3579 /* Create the array that will hold the parameters to be serialized */
3581 if (complex_count > 0) {
3582 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 */
3583 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3586 for (i = 0; i < sig->param_count; i++) {
3588 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3589 pclass = mono_class_from_mono_type (sig->params[i]);
3590 mono_mb_emit_byte (mb, CEE_DUP);
3591 mono_mb_emit_icon (mb, j);
3592 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3593 if (sig->params[i]->byref) {
3594 if (pclass->valuetype)
3595 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3597 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3599 if (pclass->valuetype)
3600 mono_mb_emit_op (mb, CEE_BOX, pclass);
3601 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3604 mono_mb_emit_stloc (mb, loc_array);
3606 /* Serialize parameters */
3608 mono_mb_emit_ldloc (mb, loc_array);
3609 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3610 mono_mb_emit_stloc (mb, loc_serialized_data);
3612 mono_mb_emit_byte (mb, CEE_LDNULL);
3613 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3614 mono_mb_emit_stloc (mb, loc_serialized_data);
3619 mono_mb_emit_ldloc (mb, loc_domainid);
3620 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3621 mono_marshal_emit_switch_domain (mb);
3622 mono_mb_emit_stloc (mb, loc_old_domainid);
3624 /* Load the arguments */
3626 mono_mb_emit_ldloc (mb, loc_real_proxy);
3627 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3628 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3630 copy_locals_base = mb->locals;
3631 for (i = 0; i < sig->param_count; i++) {
3632 switch (marshal_types [i]) {
3633 case MONO_MARSHAL_SERIALIZE:
3635 case MONO_MARSHAL_COPY: {
3636 mono_mb_emit_ldarg (mb, i+1);
3637 if (sig->params [i]->byref) {
3638 /* make a local copy of the byref parameter. The real parameter
3639 * will be updated after the xdomain call
3641 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3642 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3643 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3644 mono_mb_emit_stloc (mb, copy_local);
3645 mono_mb_emit_ldloc_addr (mb, copy_local);
3649 case MONO_MARSHAL_COPY_OUT:
3650 case MONO_MARSHAL_NONE:
3651 mono_mb_emit_ldarg (mb, i+1);
3656 /* Make the call to the invoke wrapper in the target domain */
3658 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3659 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3660 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3663 mono_mb_emit_stloc (mb, loc_return);
3667 mono_mb_emit_ldloc (mb, loc_old_domainid);
3668 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3669 mono_marshal_emit_switch_domain (mb);
3670 mono_mb_emit_byte (mb, CEE_POP);
3672 /* Restore thread domain data */
3674 mono_mb_emit_ldloc (mb, loc_context);
3675 mono_mb_emit_icall (mb, mono_context_set);
3677 /* if (loc_serialized_exc != null) ... */
3679 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3680 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3682 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3683 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3684 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3685 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3686 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3687 mono_mb_emit_byte (mb, CEE_THROW);
3688 mono_mb_patch_short_branch (mb, pos_noex);
3690 /* copy back non-serialized output parameters */
3693 for (i = 0; i < sig->param_count; i++) {
3694 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3695 mono_mb_emit_ldarg (mb, i + 1);
3696 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3697 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3698 mono_mb_emit_byte (mb, CEE_STIND_REF);
3701 /* Deserialize out parameters */
3703 if (complex_out_count > 0) {
3704 mono_mb_emit_ldloc (mb, loc_serialized_data);
3705 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3706 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3707 mono_mb_emit_stloc (mb, loc_array);
3709 /* Copy back output parameters and return type */
3712 for (i = 0; i < sig->param_count; i++) {
3713 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3714 if (sig->params[i]->byref) {
3715 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3716 mono_mb_emit_ldarg (mb, i + 1);
3717 mono_mb_emit_ldloc (mb, loc_array);
3718 mono_mb_emit_icon (mb, j);
3719 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3720 if (pclass->valuetype) {
3721 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3722 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3723 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3725 if (pclass != mono_defaults.object_class)
3726 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3727 mono_mb_emit_byte (mb, CEE_STIND_REF);
3733 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3734 mono_mb_emit_ldloc (mb, loc_array);
3735 mono_mb_emit_icon (mb, complex_count);
3736 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3737 if (ret_class->valuetype) {
3738 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3739 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3742 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3743 mono_mb_emit_ldloc (mb, loc_serialized_data);
3744 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3745 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3746 if (ret_class->valuetype) {
3747 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3748 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3749 } else if (ret_class != mono_defaults.object_class) {
3750 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3753 mono_mb_emit_ldloc (mb, loc_serialized_data);
3754 mono_mb_emit_byte (mb, CEE_DUP);
3755 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3756 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3758 mono_mb_patch_short_branch (mb, pos);
3759 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3760 mono_mb_emit_byte (mb, CEE_POP);
3764 mono_mb_emit_ldloc (mb, loc_return);
3765 if (ret_marshal_type == MONO_MARSHAL_COPY)
3766 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3769 mono_mb_emit_byte (mb, CEE_RET);
3771 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3778 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3780 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3781 return mono_marshal_get_xappdomain_invoke (method);
3782 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3784 return mono_cominterop_get_invoke (method);
3786 g_assert_not_reached ();
3789 return mono_marshal_get_remoting_invoke (method);
3795 G_GNUC_UNUSED static gpointer
3796 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3798 if (rp->target_domain_id != -1)
3799 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3801 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3805 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3807 MonoMethodSignature *sig;
3808 MonoMethodBuilder *mb;
3809 MonoMethod *res, *native;
3810 int i, pos, pos_rem;
3814 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3817 /* we cant remote methods without this pointer */
3818 g_assert (mono_method_signature (method)->hasthis);
3820 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3823 sig = mono_signature_no_pinvoke (method);
3825 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3827 for (i = 0; i <= sig->param_count; i++)
3828 mono_mb_emit_ldarg (mb, i);
3830 mono_mb_emit_ldarg (mb, 0);
3831 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3833 if (mono_marshal_supports_fast_xdomain (method)) {
3834 mono_mb_emit_ldarg (mb, 0);
3835 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3837 /* wrapper for cross app domain calls */
3838 native = mono_marshal_get_xappdomain_invoke (method);
3839 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3840 mono_mb_emit_byte (mb, CEE_RET);
3842 mono_mb_patch_branch (mb, pos_rem);
3844 /* wrapper for normal remote calls */
3845 native = mono_marshal_get_remoting_invoke (method);
3846 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3847 mono_mb_emit_byte (mb, CEE_RET);
3850 mono_mb_patch_branch (mb, pos);
3851 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3852 mono_mb_emit_byte (mb, CEE_RET);
3854 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3862 MonoMethodSignature *sig;
3864 } SignatureMethodPair;
3867 signature_method_pair_hash (gconstpointer data)
3869 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3871 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3875 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3877 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3881 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3883 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3884 MonoMethod *method = (MonoMethod*)user_data;
3886 return pair->method == method;
3890 free_signature_method_pair (SignatureMethodPair *pair)
3896 * the returned method invokes all methods in a multicast delegate.
3899 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3901 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3903 MonoMethodBuilder *mb;
3904 MonoMethod *res, *newm;
3906 SignatureMethodPair key;
3907 SignatureMethodPair *new_key;
3908 int local_prev, local_target;
3911 MonoMethod *target_method = NULL;
3912 MonoClass *target_class = NULL;
3913 gboolean callvirt = FALSE;
3914 gboolean closed_over_null = FALSE;
3915 gboolean static_method_with_first_arg_bound = FALSE;
3918 * If the delegate target is null, and the target method is not static, a virtual
3919 * call is made to that method with the first delegate argument as this. This is
3920 * a non-documented .NET feature.
3922 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3924 target_method = del->method;
3925 if (target_method->is_inflated) {
3926 MonoType *target_type;
3928 g_assert (method->signature->hasthis);
3929 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3930 mono_method_get_context (method));
3931 target_class = mono_class_from_mono_type (target_type);
3933 target_class = del->method->klass;
3937 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3938 !strcmp (method->name, "Invoke"));
3940 invoke_sig = sig = mono_signature_no_pinvoke (method);
3943 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3945 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3946 invoke_sig = mono_method_signature (del->method);
3947 target_method = del->method;
3948 static_method_with_first_arg_bound = TRUE;
3951 if (callvirt || static_method_with_first_arg_bound) {
3952 GHashTable **cache_ptr;
3953 if (static_method_with_first_arg_bound)
3954 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3956 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3958 /* We need to cache the signature+method pair */
3959 mono_marshal_lock ();
3961 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3963 key.sig = invoke_sig;
3964 key.method = target_method;
3965 res = g_hash_table_lookup (cache, &key);
3966 mono_marshal_unlock ();
3970 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3971 (GHashFunc)mono_signature_hash,
3972 (GCompareFunc)mono_metadata_signature_equal);
3973 if ((res = mono_marshal_find_in_cache (cache, sig)))
3977 static_sig = signature_dup (method->klass->image, sig);
3978 static_sig->hasthis = 0;
3979 if (!static_method_with_first_arg_bound)
3980 invoke_sig = static_sig;
3982 name = mono_signature_to_name (sig, "invoke");
3983 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3986 /* allocate local 0 (object) */
3987 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3988 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3990 g_assert (sig->hasthis);
3994 * prev.Invoke( args .. );
3995 * return this.<target>( args .. );
3998 /* this wrapper can be used in unmanaged-managed transitions */
3999 emit_thread_interrupt_checkpoint (mb);
4001 /* get this->prev */
4002 mono_mb_emit_ldarg (mb, 0);
4003 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4004 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4005 mono_mb_emit_stloc (mb, local_prev);
4006 mono_mb_emit_ldloc (mb, local_prev);
4008 /* if prev != null */
4009 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4014 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4016 mono_mb_emit_ldloc (mb, local_prev);
4017 for (i = 0; i < sig->param_count; i++)
4018 mono_mb_emit_ldarg (mb, i + 1);
4019 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4020 if (sig->ret->type != MONO_TYPE_VOID)
4021 mono_mb_emit_byte (mb, CEE_POP);
4023 /* continued or prev == null */
4024 mono_mb_patch_branch (mb, pos0);
4026 /* get this->target */
4027 mono_mb_emit_ldarg (mb, 0);
4028 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4029 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4030 mono_mb_emit_stloc (mb, local_target);
4032 /*static methods with bound first arg can have null target and still be bound*/
4033 if (!static_method_with_first_arg_bound) {
4034 /* if target != null */
4035 mono_mb_emit_ldloc (mb, local_target);
4036 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4038 /* then call this->method_ptr nonstatic */
4041 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4043 mono_mb_emit_ldloc (mb, local_target);
4044 for (i = 0; i < sig->param_count; ++i)
4045 mono_mb_emit_ldarg (mb, i + 1);
4046 mono_mb_emit_ldarg (mb, 0);
4047 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4048 mono_mb_emit_byte (mb, CEE_LDIND_I );
4049 mono_mb_emit_op (mb, CEE_CALLI, sig);
4051 mono_mb_emit_byte (mb, CEE_RET);
4054 /* else [target == null] call this->method_ptr static */
4055 mono_mb_patch_branch (mb, pos0);
4059 if (!closed_over_null) {
4060 mono_mb_emit_ldarg (mb, 1);
4061 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4062 for (i = 1; i < sig->param_count; ++i)
4063 mono_mb_emit_ldarg (mb, i + 1);
4064 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4066 mono_mb_emit_byte (mb, CEE_LDNULL);
4067 for (i = 0; i < sig->param_count; ++i)
4068 mono_mb_emit_ldarg (mb, i + 1);
4069 mono_mb_emit_op (mb, CEE_CALL, target_method);
4072 if (static_method_with_first_arg_bound) {
4073 mono_mb_emit_ldloc (mb, local_target);
4074 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4075 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4077 for (i = 0; i < sig->param_count; ++i)
4078 mono_mb_emit_ldarg (mb, i + 1);
4079 mono_mb_emit_ldarg (mb, 0);
4080 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4081 mono_mb_emit_byte (mb, CEE_LDIND_I );
4082 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4085 mono_mb_emit_byte (mb, CEE_RET);
4087 if (static_method_with_first_arg_bound || callvirt) {
4088 // From mono_mb_create_and_cache
4089 mb->skip_visibility = 1;
4090 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4091 /*We perform double checked locking, so must fence before publishing*/
4092 mono_memory_barrier ();
4093 mono_marshal_lock ();
4094 res = g_hash_table_lookup (cache, &key);
4097 new_key = g_new0 (SignatureMethodPair, 1);
4099 if (static_method_with_first_arg_bound)
4100 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4101 g_hash_table_insert (cache, new_key, res);
4102 mono_marshal_set_wrapper_info (res, new_key);
4103 mono_marshal_unlock ();
4105 mono_marshal_unlock ();
4106 mono_free_method (newm);
4109 mb->skip_visibility = 1;
4110 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4118 * signature_dup_add_this:
4120 * Make a copy of @sig, adding an explicit this argument.
4122 static MonoMethodSignature*
4123 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
4125 MonoMethodSignature *res;
4128 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
4129 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4130 res->param_count = sig->param_count + 1;
4131 res->hasthis = FALSE;
4132 for (i = sig->param_count - 1; i >= 0; i --)
4133 res->params [i + 1] = sig->params [i];
4134 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4140 MonoMethodSignature *ctor_sig;
4141 MonoMethodSignature *sig;
4144 /* protected by the marshal lock, contains CtorSigPair pointers */
4145 static GSList *strsig_list = NULL;
4147 static MonoMethodSignature *
4148 lookup_string_ctor_signature (MonoMethodSignature *sig)
4150 MonoMethodSignature *callsig;
4154 mono_marshal_lock ();
4156 for (item = strsig_list; item; item = item->next) {
4158 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4159 * because it is lock-free.
4161 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4166 mono_marshal_unlock ();
4170 static MonoMethodSignature *
4171 add_string_ctor_signature (MonoMethod *method)
4173 MonoMethodSignature *callsig;
4176 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4177 callsig->ret = &mono_defaults.string_class->byval_arg;
4178 cs = g_new (CtorSigPair, 1);
4180 cs->ctor_sig = mono_method_signature (method);
4182 mono_marshal_lock ();
4183 strsig_list = g_slist_prepend (strsig_list, cs);
4184 mono_marshal_unlock ();
4189 * mono_marshal_get_string_ctor_signature:
4191 * Return the modified signature used by string ctors (they return the newly created
4194 MonoMethodSignature*
4195 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4197 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4199 sig = add_string_ctor_signature (method);
4205 get_runtime_invoke_type (MonoType *t, gboolean ret)
4208 /* Can't share this with 'I' as that needs another indirection */
4211 if (MONO_TYPE_IS_REFERENCE (t))
4212 return &mono_defaults.object_class->byval_arg;
4215 /* The result needs to be boxed */
4221 return &mono_defaults.sbyte_class->byval_arg;
4223 return &mono_defaults.int16_class->byval_arg;
4225 return &mono_defaults.int32_class->byval_arg;
4227 return &mono_defaults.int64_class->byval_arg;
4228 case MONO_TYPE_BOOLEAN:
4229 return &mono_defaults.sbyte_class->byval_arg;
4230 case MONO_TYPE_CHAR:
4231 return &mono_defaults.int16_class->byval_arg;
4234 return &mono_defaults.int_class->byval_arg;
4235 case MONO_TYPE_VALUETYPE:
4236 if (t->data.klass->enumtype) {
4237 t = mono_class_enum_basetype (t->data.klass);
4247 * mono_marshal_get_runtime_invoke_sig:
4249 * Return a common signature used for sharing runtime invoke wrappers.
4251 static MonoMethodSignature*
4252 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4254 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4257 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4258 for (i = 0; i < res->param_count; ++i)
4259 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4265 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4267 /* Can't share wrappers which return a vtype since it needs to be boxed */
4268 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))
4271 return mono_metadata_signature_equal (sig1, sig2);
4277 * Emit the call to the wrapper method from a runtime invoke wrapper.
4280 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4281 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4283 gboolean virtual, gboolean need_direct_wrapper)
4285 static MonoString *string_dummy = NULL;
4287 int *tmp_nullable_locals;
4288 gboolean void_ret = FALSE;
4290 /* to make it work with our special string constructors */
4291 if (!string_dummy) {
4292 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4293 string_dummy = mono_string_new_wrapper ("dummy");
4297 g_assert (sig->hasthis);
4298 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4302 if (method->string_ctor) {
4303 mono_mb_emit_ptr (mb, string_dummy);
4305 mono_mb_emit_ldarg (mb, 0);
4309 tmp_nullable_locals = g_new0 (int, sig->param_count);
4311 for (i = 0; i < sig->param_count; i++) {
4312 MonoType *t = sig->params [i];
4315 mono_mb_emit_ldarg (mb, 1);
4317 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4318 mono_mb_emit_byte (mb, CEE_ADD);
4322 mono_mb_emit_byte (mb, CEE_LDIND_I);
4323 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4324 * So to make this work we unbox it to a local variablee and push a reference to that.
4326 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4327 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4329 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4330 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4331 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4336 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4337 type = sig->params [i]->type;
4341 case MONO_TYPE_BOOLEAN:
4345 case MONO_TYPE_CHAR:
4354 mono_mb_emit_byte (mb, CEE_LDIND_I);
4355 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4357 case MONO_TYPE_STRING:
4358 case MONO_TYPE_CLASS:
4359 case MONO_TYPE_ARRAY:
4361 case MONO_TYPE_SZARRAY:
4362 case MONO_TYPE_OBJECT:
4363 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4365 case MONO_TYPE_GENERICINST:
4366 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4367 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4372 case MONO_TYPE_VALUETYPE:
4373 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4374 type = mono_class_enum_basetype (t->data.klass)->type;
4377 mono_mb_emit_byte (mb, CEE_LDIND_I);
4378 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4379 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4380 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4381 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4383 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4387 g_assert_not_reached ();
4392 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4393 } else if (need_direct_wrapper) {
4394 mono_mb_emit_op (mb, CEE_CALL, method);
4396 mono_mb_emit_ldarg (mb, 3);
4397 mono_mb_emit_calli (mb, callsig);
4400 if (sig->ret->byref) {
4402 g_assert_not_reached ();
4405 switch (sig->ret->type) {
4406 case MONO_TYPE_VOID:
4407 if (!method->string_ctor)
4410 case MONO_TYPE_BOOLEAN:
4411 case MONO_TYPE_CHAR:
4424 case MONO_TYPE_VALUETYPE:
4425 case MONO_TYPE_TYPEDBYREF:
4426 case MONO_TYPE_GENERICINST:
4427 /* box value types */
4428 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4430 case MONO_TYPE_STRING:
4431 case MONO_TYPE_CLASS:
4432 case MONO_TYPE_ARRAY:
4433 case MONO_TYPE_SZARRAY:
4434 case MONO_TYPE_OBJECT:
4438 /* The result is an IntPtr */
4439 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4442 g_assert_not_reached ();
4446 mono_mb_emit_stloc (mb, loc_res);
4448 /* Convert back nullable-byref arguments */
4449 for (i = 0; i < sig->param_count; i++) {
4450 MonoType *t = sig->params [i];
4453 * Box the result and put it back into the array, the caller will have
4454 * to obtain it from there.
4456 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4457 mono_mb_emit_ldarg (mb, 1);
4458 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4459 mono_mb_emit_byte (mb, CEE_ADD);
4461 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4462 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4464 mono_mb_emit_byte (mb, CEE_STIND_REF);
4468 g_free (tmp_nullable_locals);
4472 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4473 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4474 gboolean virtual, gboolean need_direct_wrapper)
4477 MonoExceptionClause *clause;
4478 int loc_res, loc_exc;
4480 /* The wrapper looks like this:
4486 * } catch (Exception e) {
4494 /* allocate local 0 (object) tmp */
4495 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4496 /* allocate local 1 (object) exc */
4497 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4499 /* *exc is assumed to be initialized to NULL by the caller */
4501 mono_mb_emit_byte (mb, CEE_LDARG_2);
4502 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4507 labels [1] = mono_mb_get_label (mb);
4508 emit_thread_force_interrupt_checkpoint (mb);
4509 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4511 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4513 /* Add a try clause around the call */
4514 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4515 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4516 clause->data.catch_class = mono_defaults.exception_class;
4517 clause->try_offset = labels [1];
4518 clause->try_len = mono_mb_get_label (mb) - labels [1];
4520 clause->handler_offset = mono_mb_get_label (mb);
4523 mono_mb_emit_stloc (mb, loc_exc);
4524 mono_mb_emit_byte (mb, CEE_LDARG_2);
4525 mono_mb_emit_ldloc (mb, loc_exc);
4526 mono_mb_emit_byte (mb, CEE_STIND_REF);
4528 mono_mb_emit_branch (mb, CEE_LEAVE);
4530 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4532 mono_mb_set_clauses (mb, 1, clause);
4534 mono_mb_patch_branch (mb, labels [2]);
4535 mono_mb_emit_ldloc (mb, loc_res);
4536 mono_mb_emit_byte (mb, CEE_RET);
4541 mono_mb_patch_branch (mb, labels [0]);
4542 emit_thread_force_interrupt_checkpoint (mb);
4543 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4545 mono_mb_emit_ldloc (mb, 0);
4546 mono_mb_emit_byte (mb, CEE_RET);
4550 * generates IL code for the runtime invoke function
4551 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4553 * we also catch exceptions if exc != null
4554 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4555 * it means that the compiled code for METHOD does not have to be looked up
4556 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4557 * its METHOD argument.
4560 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4562 MonoMethodSignature *sig, *csig, *callsig;
4563 MonoMethodBuilder *mb;
4564 GHashTable *cache = NULL;
4565 MonoClass *target_klass;
4566 MonoMethod *res = NULL;
4567 static MonoMethodSignature *cctor_signature = NULL;
4568 static MonoMethodSignature *finalize_signature = NULL;
4570 const char *param_names [16];
4571 gboolean need_direct_wrapper = FALSE;
4576 if (!cctor_signature) {
4577 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4578 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4580 if (!finalize_signature) {
4581 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4582 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4583 finalize_signature->hasthis = 1;
4587 need_direct_wrapper = TRUE;
4590 * Use a separate cache indexed by methods to speed things up and to avoid the
4591 * boundless mempool growth caused by the signature_dup stuff below.
4594 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4596 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4597 res = mono_marshal_find_in_cache (cache, method);
4601 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4602 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4604 * Array Get/Set/Address methods. The JIT implements them using inline code
4605 * so we need to create an invoke wrapper which calls the method directly.
4607 need_direct_wrapper = TRUE;
4610 if (method->string_ctor) {
4611 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4613 callsig = add_string_ctor_signature (method);
4614 /* Can't share this as we push a string as this */
4615 need_direct_wrapper = TRUE;
4617 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4619 * Valuetype methods receive a managed pointer as the this argument.
4620 * Create a new signature to reflect this.
4622 callsig = signature_dup_add_this (method->klass->image, mono_method_signature (method), method->klass);
4623 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4624 need_direct_wrapper = TRUE;
4626 if (method->dynamic)
4627 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4629 callsig = mono_method_signature (method);
4633 target_klass = get_wrapper_target_class (method->klass->image);
4635 /* Try to share wrappers for non-corlib methods with simple signatures */
4636 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4637 callsig = cctor_signature;
4638 target_klass = mono_defaults.object_class;
4639 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4640 callsig = finalize_signature;
4641 target_klass = mono_defaults.object_class;
4644 if (need_direct_wrapper) {
4645 /* Already searched at the start */
4647 MonoMethodSignature *tmp_sig;
4649 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4651 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4652 (GHashFunc)mono_signature_hash,
4653 (GCompareFunc)runtime_invoke_signature_equal);
4655 /* from mono_marshal_find_in_cache */
4656 mono_marshal_lock ();
4657 res = g_hash_table_lookup (cache, callsig);
4658 mono_marshal_unlock ();
4665 /* Make a copy of the signature from the image mempool */
4667 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4671 sig = mono_method_signature (method);
4673 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4675 csig->ret = &mono_defaults.object_class->byval_arg;
4676 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4677 csig->params [0] = callsig->params [0];
4679 csig->params [0] = &mono_defaults.object_class->byval_arg;
4680 csig->params [1] = &mono_defaults.int_class->byval_arg;
4681 csig->params [2] = &mono_defaults.int_class->byval_arg;
4682 csig->params [3] = &mono_defaults.int_class->byval_arg;
4685 /* This is called from runtime code so it has to be cdecl */
4686 csig->call_convention = MONO_CALL_C;
4689 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4690 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4693 param_names [0] = "this";
4694 param_names [1] = "params";
4695 param_names [2] = "exc";
4696 param_names [3] = "method";
4697 mono_mb_set_param_names (mb, param_names);
4699 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4701 if (need_direct_wrapper) {
4702 mb->skip_visibility = 1;
4703 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4704 info = mono_wrapper_info_create (res, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4705 info->d.runtime_invoke.method = method;
4706 mono_marshal_set_wrapper_info (res, info);
4708 /* taken from mono_mb_create_and_cache */
4709 mono_marshal_lock ();
4710 res = g_hash_table_lookup (cache, callsig);
4711 mono_marshal_unlock ();
4713 /* Somebody may have created it before us */
4716 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4718 mono_marshal_lock ();
4719 res = g_hash_table_lookup (cache, callsig);
4722 g_hash_table_insert (cache, callsig, res);
4723 /* Can't insert it into wrapper_hash since the key is a signature */
4724 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4726 mono_free_method (newm);
4728 mono_marshal_unlock ();
4731 /* end mono_mb_create_and_cache */
4740 * mono_marshal_get_runtime_invoke_dynamic:
4742 * Return a method which can be used to invoke managed methods from native code
4744 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4745 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4746 * ARGS should point to an architecture specific structure containing
4747 * the arguments and space for the return value.
4748 * The other arguments are the same as for runtime_invoke (), except that
4749 * ARGS should contain the this argument too.
4750 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4751 * is only one copy of it, which is useful in full-aot.
4752 * The wrapper info for the wrapper is a WrapperInfo structure.
4755 mono_marshal_get_runtime_invoke_dynamic (void)
4757 static MonoMethod *method;
4758 MonoMethodSignature *csig;
4759 MonoExceptionClause *clause;
4760 MonoMethodBuilder *mb;
4768 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4770 csig->ret = &mono_defaults.void_class->byval_arg;
4771 csig->params [0] = &mono_defaults.int_class->byval_arg;
4772 csig->params [1] = &mono_defaults.int_class->byval_arg;
4773 csig->params [2] = &mono_defaults.int_class->byval_arg;
4774 csig->params [3] = &mono_defaults.int_class->byval_arg;
4776 name = g_strdup ("runtime_invoke_dynamic");
4777 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4780 /* allocate local 0 (object) tmp */
4781 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4782 /* allocate local 1 (object) exc */
4783 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4785 /* cond set *exc to null */
4786 mono_mb_emit_byte (mb, CEE_LDARG_1);
4787 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4788 mono_mb_emit_byte (mb, 3);
4789 mono_mb_emit_byte (mb, CEE_LDARG_1);
4790 mono_mb_emit_byte (mb, CEE_LDNULL);
4791 mono_mb_emit_byte (mb, CEE_STIND_REF);
4793 emit_thread_force_interrupt_checkpoint (mb);
4795 mono_mb_emit_byte (mb, CEE_LDARG_0);
4796 mono_mb_emit_byte (mb, CEE_LDARG_2);
4797 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4798 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4800 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4802 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4803 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4804 clause->try_len = mono_mb_get_label (mb);
4807 clause->data.filter_offset = mono_mb_get_label (mb);
4809 mono_mb_emit_byte (mb, CEE_POP);
4810 mono_mb_emit_byte (mb, CEE_LDARG_1);
4811 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4812 mono_mb_emit_byte (mb, CEE_PREFIX1);
4813 mono_mb_emit_byte (mb, CEE_CGT_UN);
4814 mono_mb_emit_byte (mb, CEE_PREFIX1);
4815 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4817 clause->handler_offset = mono_mb_get_label (mb);
4820 /* store exception */
4821 mono_mb_emit_stloc (mb, 1);
4823 mono_mb_emit_byte (mb, CEE_LDARG_1);
4824 mono_mb_emit_ldloc (mb, 1);
4825 mono_mb_emit_byte (mb, CEE_STIND_REF);
4827 mono_mb_emit_byte (mb, CEE_LDNULL);
4828 mono_mb_emit_stloc (mb, 0);
4830 /* Check for the abort exception */
4831 mono_mb_emit_ldloc (mb, 1);
4832 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4833 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4835 /* Delay the abort exception */
4836 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4838 mono_mb_patch_short_branch (mb, posna);
4839 mono_mb_emit_branch (mb, CEE_LEAVE);
4841 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4843 mono_mb_set_clauses (mb, 1, clause);
4846 mono_mb_patch_branch (mb, pos);
4847 //mono_mb_emit_ldloc (mb, 0);
4848 mono_mb_emit_byte (mb, CEE_RET);
4850 mono_loader_lock ();
4851 /* double-checked locking */
4853 method = mono_mb_create_method (mb, csig, 16);
4854 info = mono_wrapper_info_create (method, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4855 mono_marshal_set_wrapper_info (method, info);
4857 mono_loader_unlock ();
4865 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4867 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4868 klass->name_space, klass->name);
4870 mono_mb_emit_exception_marshal_directive (mb, msg);
4874 * mono_marshal_get_ldfld_remote_wrapper:
4875 * @klass: The return type
4877 * This method generates a wrapper for calling mono_load_remote_field_new.
4878 * The return type is ignored for now, as mono_load_remote_field_new () always
4879 * returns an object. In the future, to optimize some codepaths, we might
4880 * call a different function that takes a pointer to a valuetype, instead.
4883 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4885 MonoMethodSignature *sig, *csig;
4886 MonoMethodBuilder *mb;
4888 static MonoMethod* cached = NULL;
4890 mono_marshal_lock ();
4892 mono_marshal_unlock ();
4895 mono_marshal_unlock ();
4897 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4899 mb->method->save_lmf = 1;
4901 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4902 sig->params [0] = &mono_defaults.object_class->byval_arg;
4903 sig->params [1] = &mono_defaults.int_class->byval_arg;
4904 sig->params [2] = &mono_defaults.int_class->byval_arg;
4905 sig->ret = &mono_defaults.object_class->byval_arg;
4907 mono_mb_emit_ldarg (mb, 0);
4908 mono_mb_emit_ldarg (mb, 1);
4909 mono_mb_emit_ldarg (mb, 2);
4911 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4912 csig->params [0] = &mono_defaults.object_class->byval_arg;
4913 csig->params [1] = &mono_defaults.int_class->byval_arg;
4914 csig->params [2] = &mono_defaults.int_class->byval_arg;
4915 csig->ret = &mono_defaults.object_class->byval_arg;
4918 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4919 emit_thread_interrupt_checkpoint (mb);
4921 mono_mb_emit_byte (mb, CEE_RET);
4923 mono_marshal_lock ();
4925 mono_marshal_unlock ();
4928 newm = mono_mb_create_method (mb, sig, 4);
4929 mono_marshal_lock ();
4934 mono_marshal_unlock ();
4936 mono_marshal_unlock ();
4937 mono_free_method (newm);
4946 * mono_marshal_get_ldfld_wrapper:
4947 * @type: the type of the field
4949 * This method generates a function which can be use to load a field with type
4950 * @type from an object. The generated function has the following signature:
4951 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4954 mono_marshal_get_ldfld_wrapper (MonoType *type)
4956 MonoMethodSignature *sig;
4957 MonoMethodBuilder *mb;
4962 int t, pos0, pos1 = 0;
4964 type = mono_type_get_underlying_type (type);
4969 if (type->type == MONO_TYPE_SZARRAY) {
4970 klass = mono_defaults.array_class;
4971 } else if (type->type == MONO_TYPE_VALUETYPE) {
4972 klass = type->data.klass;
4973 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4974 klass = mono_defaults.object_class;
4975 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4976 klass = mono_defaults.int_class;
4977 } else if (t == MONO_TYPE_GENERICINST) {
4978 if (mono_type_generic_inst_is_valuetype (type))
4979 klass = mono_class_from_mono_type (type);
4981 klass = mono_defaults.object_class;
4983 klass = mono_class_from_mono_type (type);
4986 klass = mono_defaults.int_class;
4989 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4990 if ((res = mono_marshal_find_in_cache (cache, klass)))
4993 /* we add the %p pointer value of klass because class names are not unique */
4994 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4995 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4998 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4999 sig->params [0] = &mono_defaults.object_class->byval_arg;
5000 sig->params [1] = &mono_defaults.int_class->byval_arg;
5001 sig->params [2] = &mono_defaults.int_class->byval_arg;
5002 sig->params [3] = &mono_defaults.int_class->byval_arg;
5003 sig->ret = &klass->byval_arg;
5005 mono_mb_emit_ldarg (mb, 0);
5006 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5008 mono_mb_emit_ldarg (mb, 0);
5009 mono_mb_emit_ldarg (mb, 1);
5010 mono_mb_emit_ldarg (mb, 2);
5012 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5015 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5016 csig->params [0] = &mono_defaults.object_class->byval_arg;
5017 csig->params [1] = &mono_defaults.int_class->byval_arg;
5018 csig->params [2] = &mono_defaults.int_class->byval_arg;
5019 csig->ret = &klass->this_arg;
5022 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5023 emit_thread_interrupt_checkpoint (mb);
5026 if (klass->valuetype) {
5027 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5028 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5030 mono_mb_emit_byte (mb, CEE_RET);
5034 mono_mb_patch_branch (mb, pos0);
5036 mono_mb_emit_ldarg (mb, 0);
5037 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5038 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5039 mono_mb_emit_ldarg (mb, 3);
5040 mono_mb_emit_byte (mb, CEE_ADD);
5042 if (klass->valuetype)
5043 mono_mb_patch_branch (mb, pos1);
5048 case MONO_TYPE_BOOLEAN:
5049 case MONO_TYPE_CHAR:
5058 case MONO_TYPE_ARRAY:
5059 case MONO_TYPE_SZARRAY:
5060 case MONO_TYPE_OBJECT:
5061 case MONO_TYPE_CLASS:
5062 case MONO_TYPE_STRING:
5066 case MONO_TYPE_FNPTR:
5067 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5069 case MONO_TYPE_VALUETYPE:
5070 g_assert (!klass->enumtype);
5071 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5073 case MONO_TYPE_GENERICINST:
5074 if (mono_type_generic_inst_is_valuetype (type)) {
5075 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5077 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5081 g_warning ("type %x not implemented", type->type);
5082 g_assert_not_reached ();
5085 mono_mb_emit_byte (mb, CEE_RET);
5087 res = mono_mb_create_and_cache (cache, klass,
5088 mb, sig, sig->param_count + 16);
5095 * mono_marshal_get_ldflda_wrapper:
5096 * @type: the type of the field
5098 * This method generates a function which can be used to load a field address
5099 * from an object. The generated function has the following signature:
5100 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5103 mono_marshal_get_ldflda_wrapper (MonoType *type)
5105 MonoMethodSignature *sig;
5106 MonoMethodBuilder *mb;
5111 int t, pos0, pos1, pos2, pos3;
5113 type = mono_type_get_underlying_type (type);
5117 if (type->type == MONO_TYPE_SZARRAY) {
5118 klass = mono_defaults.array_class;
5119 } else if (type->type == MONO_TYPE_VALUETYPE) {
5120 klass = type->data.klass;
5121 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5122 t == MONO_TYPE_CLASS) {
5123 klass = mono_defaults.object_class;
5124 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5125 klass = mono_defaults.int_class;
5126 } else if (t == MONO_TYPE_GENERICINST) {
5127 if (mono_type_generic_inst_is_valuetype (type))
5128 klass = mono_class_from_mono_type (type);
5130 klass = mono_defaults.object_class;
5132 klass = mono_class_from_mono_type (type);
5135 klass = mono_defaults.int_class;
5138 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5139 if ((res = mono_marshal_find_in_cache (cache, klass)))
5142 /* we add the %p pointer value of klass because class names are not unique */
5143 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5144 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5147 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5148 sig->params [0] = &mono_defaults.object_class->byval_arg;
5149 sig->params [1] = &mono_defaults.int_class->byval_arg;
5150 sig->params [2] = &mono_defaults.int_class->byval_arg;
5151 sig->params [3] = &mono_defaults.int_class->byval_arg;
5152 sig->ret = &mono_defaults.int_class->byval_arg;
5154 /* if typeof (this) != transparent_proxy goto pos0 */
5155 mono_mb_emit_ldarg (mb, 0);
5156 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5158 /* if same_appdomain goto pos1 */
5159 mono_mb_emit_ldarg (mb, 0);
5160 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5162 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5164 /* same app domain */
5165 mono_mb_patch_branch (mb, pos1);
5167 /* if typeof (this) != contextbound goto pos2 */
5168 mono_mb_emit_ldarg (mb, 0);
5169 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5171 /* if this->rp->context == mono_context_get goto pos3 */
5172 mono_mb_emit_ldarg (mb, 0);
5173 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5174 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5175 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5176 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5177 mono_mb_emit_icall (mb, mono_context_get);
5178 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5180 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5182 mono_mb_patch_branch (mb, pos2);
5183 mono_mb_patch_branch (mb, pos3);
5185 /* return the address of the field from this->rp->unwrapped_server */
5186 mono_mb_emit_ldarg (mb, 0);
5187 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5188 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5189 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5190 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5191 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5192 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5193 mono_mb_emit_ldarg (mb, 3);
5194 mono_mb_emit_byte (mb, CEE_ADD);
5195 mono_mb_emit_byte (mb, CEE_RET);
5197 /* not a proxy: return the address of the field directly */
5198 mono_mb_patch_branch (mb, pos0);
5200 mono_mb_emit_ldarg (mb, 0);
5201 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5202 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5203 mono_mb_emit_ldarg (mb, 3);
5204 mono_mb_emit_byte (mb, CEE_ADD);
5206 mono_mb_emit_byte (mb, CEE_RET);
5208 res = mono_mb_create_and_cache (cache, klass,
5209 mb, sig, sig->param_count + 16);
5216 * mono_marshal_get_stfld_remote_wrapper:
5217 * klass: The type of the field
5219 * This function generates a wrapper for calling mono_store_remote_field_new
5220 * with the appropriate signature.
5221 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5222 * klass argument anymore.
5225 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5227 MonoMethodSignature *sig, *csig;
5228 MonoMethodBuilder *mb;
5230 static MonoMethod *cached = NULL;
5232 mono_marshal_lock ();
5234 mono_marshal_unlock ();
5237 mono_marshal_unlock ();
5239 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5241 mb->method->save_lmf = 1;
5243 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5244 sig->params [0] = &mono_defaults.object_class->byval_arg;
5245 sig->params [1] = &mono_defaults.int_class->byval_arg;
5246 sig->params [2] = &mono_defaults.int_class->byval_arg;
5247 sig->params [3] = &mono_defaults.object_class->byval_arg;
5248 sig->ret = &mono_defaults.void_class->byval_arg;
5250 mono_mb_emit_ldarg (mb, 0);
5251 mono_mb_emit_ldarg (mb, 1);
5252 mono_mb_emit_ldarg (mb, 2);
5253 mono_mb_emit_ldarg (mb, 3);
5255 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5256 csig->params [0] = &mono_defaults.object_class->byval_arg;
5257 csig->params [1] = &mono_defaults.int_class->byval_arg;
5258 csig->params [2] = &mono_defaults.int_class->byval_arg;
5259 csig->params [3] = &mono_defaults.object_class->byval_arg;
5260 csig->ret = &mono_defaults.void_class->byval_arg;
5263 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5264 emit_thread_interrupt_checkpoint (mb);
5266 mono_mb_emit_byte (mb, CEE_RET);
5268 mono_marshal_lock ();
5270 mono_marshal_unlock ();
5273 newm = mono_mb_create_method (mb, sig, 6);
5274 mono_marshal_lock ();
5279 mono_marshal_unlock ();
5281 mono_marshal_unlock ();
5282 mono_free_method (newm);
5291 * mono_marshal_get_stfld_wrapper:
5292 * @type: the type of the field
5294 * This method generates a function which can be use to store a field with type
5295 * @type. The generated function has the following signature:
5296 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5299 mono_marshal_get_stfld_wrapper (MonoType *type)
5301 MonoMethodSignature *sig;
5302 MonoMethodBuilder *mb;
5309 type = mono_type_get_underlying_type (type);
5313 if (type->type == MONO_TYPE_SZARRAY) {
5314 klass = mono_defaults.array_class;
5315 } else if (type->type == MONO_TYPE_VALUETYPE) {
5316 klass = type->data.klass;
5317 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5318 klass = mono_defaults.object_class;
5319 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5320 klass = mono_defaults.int_class;
5321 } else if (t == MONO_TYPE_GENERICINST) {
5322 if (mono_type_generic_inst_is_valuetype (type))
5323 klass = mono_class_from_mono_type (type);
5325 klass = mono_defaults.object_class;
5327 klass = mono_class_from_mono_type (type);
5330 klass = mono_defaults.int_class;
5333 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5334 if ((res = mono_marshal_find_in_cache (cache, klass)))
5337 /* we add the %p pointer value of klass because class names are not unique */
5338 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5339 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5342 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5343 sig->params [0] = &mono_defaults.object_class->byval_arg;
5344 sig->params [1] = &mono_defaults.int_class->byval_arg;
5345 sig->params [2] = &mono_defaults.int_class->byval_arg;
5346 sig->params [3] = &mono_defaults.int_class->byval_arg;
5347 sig->params [4] = &klass->byval_arg;
5348 sig->ret = &mono_defaults.void_class->byval_arg;
5350 mono_mb_emit_ldarg (mb, 0);
5351 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5353 mono_mb_emit_ldarg (mb, 0);
5354 mono_mb_emit_ldarg (mb, 1);
5355 mono_mb_emit_ldarg (mb, 2);
5356 mono_mb_emit_ldarg (mb, 4);
5357 if (klass->valuetype)
5358 mono_mb_emit_op (mb, CEE_BOX, klass);
5360 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5362 mono_mb_emit_byte (mb, CEE_RET);
5364 mono_mb_patch_branch (mb, pos);
5366 mono_mb_emit_ldarg (mb, 0);
5367 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5368 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5369 mono_mb_emit_ldarg (mb, 3);
5370 mono_mb_emit_byte (mb, CEE_ADD);
5371 mono_mb_emit_ldarg (mb, 4);
5376 case MONO_TYPE_BOOLEAN:
5377 case MONO_TYPE_CHAR:
5386 case MONO_TYPE_ARRAY:
5387 case MONO_TYPE_SZARRAY:
5388 case MONO_TYPE_OBJECT:
5389 case MONO_TYPE_CLASS:
5390 case MONO_TYPE_STRING:
5394 case MONO_TYPE_FNPTR:
5395 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5397 case MONO_TYPE_VALUETYPE:
5398 g_assert (!klass->enumtype);
5399 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5401 case MONO_TYPE_GENERICINST:
5402 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5405 g_warning ("type %x not implemented", type->type);
5406 g_assert_not_reached ();
5409 mono_mb_emit_byte (mb, CEE_RET);
5411 res = mono_mb_create_and_cache (cache, klass,
5412 mb, sig, sig->param_count + 16);
5419 * generates IL code for the icall wrapper (the generated method
5420 * calls the unmanaged code in func)
5421 * The wrapper info for the wrapper is a WrapperInfo structure.
5424 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5426 MonoMethodSignature *csig, *csig2;
5427 MonoMethodBuilder *mb;
5432 g_assert (sig->pinvoke);
5434 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5436 mb->method->save_lmf = 1;
5438 /* Add an explicit this argument */
5440 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
5442 csig2 = signature_dup (mono_defaults.corlib, sig);
5445 mono_mb_emit_byte (mb, CEE_LDARG_0);
5447 for (i = 0; i < sig->param_count; i++)
5448 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5450 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5451 if (check_exceptions)
5452 emit_thread_interrupt_checkpoint (mb);
5453 mono_mb_emit_byte (mb, CEE_RET);
5455 csig = signature_dup (mono_defaults.corlib, sig);
5457 if (csig->call_convention == MONO_CALL_VARARG)
5458 csig->call_convention = 0;
5460 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5463 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ICALL_WRAPPER);
5464 mono_marshal_set_wrapper_info (res, info);
5470 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5471 MonoMarshalSpec *spec,
5472 int conv_arg, MonoType **conv_arg_type,
5473 MarshalAction action)
5477 static MonoClass *ICustomMarshaler = NULL;
5478 static MonoMethod *cleanup_native, *cleanup_managed;
5479 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5480 MonoMethod *get_instance = NULL;
5481 MonoMethodBuilder *mb = m->mb;
5482 char *exception_msg = NULL;
5486 if (!ICustomMarshaler) {
5487 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5488 if (!ICustomMarshaler) {
5489 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5490 goto handle_exception;
5493 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5494 g_assert (cleanup_native);
5495 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5496 g_assert (cleanup_managed);
5497 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5498 g_assert (marshal_managed_to_native);
5499 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5500 g_assert (marshal_native_to_managed);
5503 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5504 g_assert (mtype != NULL);
5505 mklass = mono_class_from_mono_type (mtype);
5506 g_assert (mklass != NULL);
5508 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5509 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5511 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5513 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5514 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5515 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5516 (get_sig->params [0]->type != MONO_TYPE_STRING))
5517 get_instance = NULL;
5521 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);
5524 /* Throw exception and emit compensation code if neccesary */
5525 if (exception_msg) {
5527 case MARSHAL_ACTION_CONV_IN:
5528 case MARSHAL_ACTION_CONV_RESULT:
5529 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5530 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5531 mono_mb_emit_byte (mb, CEE_POP);
5533 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5534 g_free (exception_msg);
5537 case MARSHAL_ACTION_PUSH:
5538 mono_mb_emit_byte (mb, CEE_LDNULL);
5546 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5547 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5550 case MARSHAL_ACTION_CONV_IN:
5552 case MONO_TYPE_CLASS:
5553 case MONO_TYPE_OBJECT:
5554 case MONO_TYPE_STRING:
5555 case MONO_TYPE_ARRAY:
5556 case MONO_TYPE_SZARRAY:
5557 case MONO_TYPE_VALUETYPE:
5561 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5562 g_assert_not_reached ();
5566 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5568 mono_mb_emit_byte (mb, CEE_LDNULL);
5569 mono_mb_emit_stloc (mb, conv_arg);
5571 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5574 /* Minic MS.NET behavior */
5575 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5578 /* Check for null */
5579 mono_mb_emit_ldarg (mb, argnum);
5581 mono_mb_emit_byte (mb, CEE_LDIND_I);
5582 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5584 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5586 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5588 mono_mb_emit_ldarg (mb, argnum);
5590 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5592 if (t->type == MONO_TYPE_VALUETYPE) {
5594 * Since we can't determine the type of the argument, we
5595 * will assume the unmanaged function takes a pointer.
5597 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5599 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5602 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5603 mono_mb_emit_stloc (mb, conv_arg);
5605 mono_mb_patch_branch (mb, pos2);
5608 case MARSHAL_ACTION_CONV_OUT:
5609 /* Check for null */
5610 mono_mb_emit_ldloc (mb, conv_arg);
5611 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5614 mono_mb_emit_ldarg (mb, argnum);
5616 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5618 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5620 mono_mb_emit_ldloc (mb, conv_arg);
5621 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5622 mono_mb_emit_byte (mb, CEE_STIND_REF);
5623 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5624 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5626 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5628 mono_mb_emit_ldloc (mb, conv_arg);
5629 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5631 /* We have nowhere to store the result */
5632 mono_mb_emit_byte (mb, CEE_POP);
5635 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5637 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5639 mono_mb_emit_ldloc (mb, conv_arg);
5641 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5643 mono_mb_patch_branch (mb, pos2);
5646 case MARSHAL_ACTION_PUSH:
5648 mono_mb_emit_ldloc_addr (mb, conv_arg);
5650 mono_mb_emit_ldloc (mb, conv_arg);
5653 case MARSHAL_ACTION_CONV_RESULT:
5654 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5656 mono_mb_emit_stloc (mb, 3);
5658 mono_mb_emit_ldloc (mb, 3);
5659 mono_mb_emit_stloc (mb, loc1);
5661 /* Check for null */
5662 mono_mb_emit_ldloc (mb, 3);
5663 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5665 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5667 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5668 mono_mb_emit_byte (mb, CEE_DUP);
5670 mono_mb_emit_ldloc (mb, 3);
5671 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5672 mono_mb_emit_stloc (mb, 3);
5674 mono_mb_emit_ldloc (mb, loc1);
5675 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5677 mono_mb_patch_branch (mb, pos2);
5680 case MARSHAL_ACTION_MANAGED_CONV_IN:
5681 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5683 mono_mb_emit_byte (mb, CEE_LDNULL);
5684 mono_mb_emit_stloc (mb, conv_arg);
5686 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5689 /* Check for null */
5690 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_byte (mb, CEE_LDIND_I);
5693 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5695 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5696 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5698 mono_mb_emit_ldarg (mb, argnum);
5700 mono_mb_emit_byte (mb, CEE_LDIND_I);
5702 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5703 mono_mb_emit_stloc (mb, conv_arg);
5705 mono_mb_patch_branch (mb, pos2);
5708 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5709 g_assert (!t->byref);
5711 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5713 mono_mb_emit_stloc (mb, 3);
5715 mono_mb_emit_ldloc (mb, 3);
5716 mono_mb_emit_stloc (mb, loc1);
5718 /* Check for null */
5719 mono_mb_emit_ldloc (mb, 3);
5720 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5722 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5723 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5724 mono_mb_emit_byte (mb, CEE_DUP);
5726 mono_mb_emit_ldloc (mb, 3);
5727 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5728 mono_mb_emit_stloc (mb, 3);
5730 mono_mb_emit_ldloc (mb, loc1);
5731 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5733 mono_mb_patch_branch (mb, pos2);
5736 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5738 /* Check for null */
5739 mono_mb_emit_ldloc (mb, conv_arg);
5740 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5743 mono_mb_emit_ldarg (mb, argnum);
5745 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5747 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5749 mono_mb_emit_ldloc (mb, conv_arg);
5750 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5751 mono_mb_emit_byte (mb, CEE_STIND_I);
5754 /* Call CleanUpManagedData */
5755 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5757 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5759 mono_mb_emit_ldloc (mb, conv_arg);
5760 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5762 mono_mb_patch_branch (mb, pos2);
5766 g_assert_not_reached ();
5773 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5774 MonoMarshalSpec *spec,
5775 int conv_arg, MonoType **conv_arg_type,
5776 MarshalAction action)
5778 MonoMethodBuilder *mb = m->mb;
5781 case MARSHAL_ACTION_CONV_IN: {
5782 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5784 g_assert (t->type == MONO_TYPE_OBJECT);
5785 g_assert (!t->byref);
5787 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5788 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_icon (mb, encoding);
5790 mono_mb_emit_icon (mb, t->attrs);
5791 mono_mb_emit_icall (mb, mono_marshal_asany);
5792 mono_mb_emit_stloc (mb, conv_arg);
5796 case MARSHAL_ACTION_PUSH:
5797 mono_mb_emit_ldloc (mb, conv_arg);
5800 case MARSHAL_ACTION_CONV_OUT: {
5801 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5803 mono_mb_emit_ldarg (mb, argnum);
5804 mono_mb_emit_ldloc (mb, conv_arg);
5805 mono_mb_emit_icon (mb, encoding);
5806 mono_mb_emit_icon (mb, t->attrs);
5807 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5812 g_assert_not_reached ();
5819 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5820 MonoMarshalSpec *spec,
5821 int conv_arg, MonoType **conv_arg_type,
5822 MarshalAction action)
5824 MonoMethodBuilder *mb = m->mb;
5825 MonoClass *klass, *date_time_class;
5828 klass = mono_class_from_mono_type (t);
5830 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5833 case MARSHAL_ACTION_CONV_IN:
5834 if (klass == date_time_class) {
5835 /* Convert it to an OLE DATE type */
5836 static MonoMethod *to_oadate;
5839 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5840 g_assert (to_oadate);
5842 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5845 mono_mb_emit_ldarg (mb, argnum);
5846 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5849 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5851 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5853 mono_mb_emit_ldarg_addr (mb, argnum);
5854 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5855 mono_mb_emit_stloc (mb, conv_arg);
5859 mono_mb_patch_branch (mb, pos);
5863 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5864 klass->blittable || klass->enumtype)
5867 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5869 /* store the address of the source into local variable 0 */
5871 mono_mb_emit_ldarg (mb, argnum);
5873 mono_mb_emit_ldarg_addr (mb, argnum);
5875 mono_mb_emit_stloc (mb, 0);
5877 /* allocate space for the native struct and
5878 * store the address into local variable 1 (dest) */
5879 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5880 mono_mb_emit_byte (mb, CEE_PREFIX1);
5881 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5882 mono_mb_emit_stloc (mb, conv_arg);
5885 mono_mb_emit_ldloc (mb, 0);
5886 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5889 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5891 mono_mb_emit_ldloc (mb, conv_arg);
5892 mono_mb_emit_stloc (mb, 1);
5894 /* emit valuetype conversion code */
5895 emit_struct_conv (mb, klass, FALSE);
5899 mono_mb_patch_branch (mb, pos);
5902 case MARSHAL_ACTION_PUSH:
5903 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5905 g_assert (!t->byref);
5907 /* Have to change the signature since the vtype is passed byref */
5908 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5910 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5911 klass->blittable || klass->enumtype)
5912 mono_mb_emit_ldarg_addr (mb, argnum);
5914 mono_mb_emit_ldloc (mb, conv_arg);
5918 if (klass == date_time_class) {
5920 mono_mb_emit_ldloc_addr (mb, conv_arg);
5922 mono_mb_emit_ldloc (mb, conv_arg);
5926 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5927 klass->blittable || klass->enumtype) {
5928 mono_mb_emit_ldarg (mb, argnum);
5931 mono_mb_emit_ldloc (mb, conv_arg);
5933 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5934 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5938 case MARSHAL_ACTION_CONV_OUT:
5939 if (klass == date_time_class) {
5940 /* Convert from an OLE DATE type */
5941 static MonoMethod *from_oadate;
5946 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5948 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5949 g_assert (from_oadate);
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_ldloc (mb, conv_arg);
5953 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5954 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5959 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5960 klass->blittable || klass->enumtype)
5964 /* dst = argument */
5965 mono_mb_emit_ldarg (mb, argnum);
5966 mono_mb_emit_stloc (mb, 1);
5968 mono_mb_emit_ldloc (mb, 1);
5969 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5971 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5972 /* src = tmp_locals [i] */
5973 mono_mb_emit_ldloc (mb, conv_arg);
5974 mono_mb_emit_stloc (mb, 0);
5976 /* emit valuetype conversion code */
5977 emit_struct_conv (mb, klass, TRUE);
5981 emit_struct_free (mb, klass, conv_arg);
5984 mono_mb_patch_branch (mb, pos);
5987 case MARSHAL_ACTION_CONV_RESULT:
5988 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5990 mono_mb_emit_stloc (mb, 3);
5994 /* load pointer to returned value type */
5995 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5996 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5997 /* store the address of the source into local variable 0 */
5998 mono_mb_emit_stloc (mb, 0);
6000 mono_mb_emit_ldloc_addr (mb, 3);
6001 mono_mb_emit_stloc (mb, 1);
6003 /* emit valuetype conversion code */
6004 emit_struct_conv (mb, klass, TRUE);
6007 case MARSHAL_ACTION_MANAGED_CONV_IN:
6008 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6009 klass->blittable || klass->enumtype) {
6014 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6016 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6020 mono_mb_emit_ldarg (mb, argnum);
6022 mono_mb_emit_ldarg_addr (mb, argnum);
6023 mono_mb_emit_stloc (mb, 0);
6026 mono_mb_emit_ldloc (mb, 0);
6027 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6030 mono_mb_emit_ldloc_addr (mb, conv_arg);
6031 mono_mb_emit_stloc (mb, 1);
6033 /* emit valuetype conversion code */
6034 emit_struct_conv (mb, klass, TRUE);
6037 mono_mb_patch_branch (mb, pos);
6040 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6041 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6042 klass->blittable || klass->enumtype) {
6046 /* Check for null */
6047 mono_mb_emit_ldarg (mb, argnum);
6048 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6051 mono_mb_emit_ldloc_addr (mb, conv_arg);
6052 mono_mb_emit_stloc (mb, 0);
6055 mono_mb_emit_ldarg (mb, argnum);
6056 mono_mb_emit_stloc (mb, 1);
6058 /* emit valuetype conversion code */
6059 emit_struct_conv (mb, klass, FALSE);
6061 mono_mb_patch_branch (mb, pos2);
6064 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6065 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6066 klass->blittable || klass->enumtype) {
6067 mono_mb_emit_stloc (mb, 3);
6072 /* load pointer to returned value type */
6073 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6074 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6076 /* store the address of the source into local variable 0 */
6077 mono_mb_emit_stloc (mb, 0);
6078 /* allocate space for the native struct and
6079 * store the address into dst_ptr */
6080 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6081 m->retobj_class = klass;
6082 g_assert (m->retobj_var);
6083 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6084 mono_mb_emit_byte (mb, CEE_CONV_I);
6085 mono_mb_emit_icall (mb, mono_marshal_alloc);
6086 mono_mb_emit_stloc (mb, 1);
6087 mono_mb_emit_ldloc (mb, 1);
6088 mono_mb_emit_stloc (mb, m->retobj_var);
6090 /* emit valuetype conversion code */
6091 emit_struct_conv (mb, klass, FALSE);
6095 g_assert_not_reached ();
6102 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6103 MonoMarshalSpec *spec,
6104 int conv_arg, MonoType **conv_arg_type,
6105 MarshalAction action)
6107 MonoMethodBuilder *mb = m->mb;
6108 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6109 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6113 case MARSHAL_ACTION_CONV_IN:
6114 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6115 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6118 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6121 mono_mb_emit_ldarg (mb, argnum);
6122 mono_mb_emit_byte (mb, CEE_LDIND_I);
6124 mono_mb_emit_ldarg (mb, argnum);
6128 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6129 mono_mb_emit_exception_marshal_directive (mb, msg);
6131 mono_mb_emit_icall (mb, conv_to_icall (conv));
6133 mono_mb_emit_stloc (mb, conv_arg);
6137 case MARSHAL_ACTION_CONV_OUT:
6138 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6140 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6141 mono_mb_emit_exception_marshal_directive (mb, msg);
6145 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6146 static MonoMethod *m;
6149 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6154 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
6155 mono_mb_emit_exception_marshal_directive (mb, msg);
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)
6542 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6543 mono_mb_emit_exception_marshal_directive (mb, msg);
6547 mono_mb_emit_ldarg (mb, argnum);
6549 mono_mb_emit_byte (mb, CEE_LDIND_I);
6551 mono_mb_emit_icall (mb, conv_to_icall (conv));
6552 mono_mb_emit_stloc (mb, conv_arg);
6553 } else if (klass->blittable) {
6554 mono_mb_emit_byte (mb, CEE_LDNULL);
6555 mono_mb_emit_stloc (mb, conv_arg);
6557 mono_mb_emit_ldarg (mb, argnum);
6558 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6560 mono_mb_emit_ldarg (mb, argnum);
6561 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6562 mono_mb_emit_stloc (mb, conv_arg);
6564 mono_mb_patch_branch (mb, pos);
6567 mono_mb_emit_byte (mb, CEE_LDNULL);
6568 mono_mb_emit_stloc (mb, conv_arg);
6571 /* we dont need any conversions for out parameters */
6572 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6575 mono_mb_emit_ldarg (mb, argnum);
6576 mono_mb_emit_byte (mb, CEE_LDIND_I);
6579 mono_mb_emit_ldarg (mb, argnum);
6580 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6581 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6584 /* store the address of the source into local variable 0 */
6585 mono_mb_emit_stloc (mb, 0);
6586 mono_mb_emit_ldloc (mb, 0);
6587 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6589 /* allocate space for the native struct and store the address */
6590 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6591 mono_mb_emit_byte (mb, CEE_PREFIX1);
6592 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6593 mono_mb_emit_stloc (mb, conv_arg);
6596 /* Need to store the original buffer so we can free it later */
6597 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6598 mono_mb_emit_ldloc (mb, conv_arg);
6599 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6602 /* set the src_ptr */
6603 mono_mb_emit_ldloc (mb, 0);
6604 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6605 mono_mb_emit_stloc (mb, 0);
6608 mono_mb_emit_ldloc (mb, conv_arg);
6609 mono_mb_emit_stloc (mb, 1);
6611 /* emit valuetype conversion code */
6612 emit_struct_conv (mb, klass, FALSE);
6614 mono_mb_patch_branch (mb, pos);
6618 case MARSHAL_ACTION_CONV_OUT:
6619 if (klass == mono_defaults.stringbuilder_class) {
6621 MonoMarshalNative encoding;
6622 MonoMarshalConv conv;
6624 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6625 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6627 g_assert (encoding != -1);
6630 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
6634 mono_mb_emit_ldarg (mb, argnum);
6635 mono_mb_emit_ldloc (mb, conv_arg);
6638 case MONO_NATIVE_LPWSTR:
6639 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6641 case MONO_NATIVE_LPSTR:
6642 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6645 g_assert_not_reached ();
6648 mono_mb_emit_byte (mb, CEE_STIND_REF);
6650 mono_mb_emit_ldarg (mb, argnum);
6651 mono_mb_emit_ldloc (mb, conv_arg);
6653 mono_mb_emit_icall (mb, conv_to_icall (conv));
6657 mono_mb_emit_ldloc (mb, conv_arg);
6658 mono_mb_emit_icall (mb, mono_marshal_free);
6663 if (klass->delegate) {
6665 mono_mb_emit_ldarg (mb, argnum);
6666 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6667 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6668 mono_mb_emit_ldloc (mb, conv_arg);
6669 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6670 mono_mb_emit_byte (mb, CEE_STIND_REF);
6675 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6676 /* allocate a new object */
6677 mono_mb_emit_ldarg (mb, argnum);
6678 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6679 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6680 mono_mb_emit_byte (mb, CEE_STIND_REF);
6683 /* dst = *argument */
6684 mono_mb_emit_ldarg (mb, argnum);
6687 mono_mb_emit_byte (mb, CEE_LDIND_I);
6689 mono_mb_emit_stloc (mb, 1);
6691 mono_mb_emit_ldloc (mb, 1);
6692 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6694 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6695 mono_mb_emit_ldloc (mb, 1);
6696 mono_mb_emit_icon (mb, sizeof (MonoObject));
6697 mono_mb_emit_byte (mb, CEE_ADD);
6698 mono_mb_emit_stloc (mb, 1);
6700 /* src = tmp_locals [i] */
6701 mono_mb_emit_ldloc (mb, conv_arg);
6702 mono_mb_emit_stloc (mb, 0);
6704 /* emit valuetype conversion code */
6705 emit_struct_conv (mb, klass, TRUE);
6707 /* Free the structure returned by the native code */
6708 emit_struct_free (mb, klass, conv_arg);
6710 if (m->orig_conv_args [argnum]) {
6712 * If the native function changed the pointer, then free
6713 * the original structure plus the new pointer.
6715 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6716 mono_mb_emit_ldloc (mb, conv_arg);
6717 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6719 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6720 g_assert (m->orig_conv_args [argnum]);
6722 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6725 mono_mb_emit_ldloc (mb, conv_arg);
6726 mono_mb_emit_icall (mb, mono_marshal_free);
6728 mono_mb_patch_branch (mb, pos2);
6732 /* Free the original structure passed to native code */
6733 emit_struct_free (mb, klass, conv_arg);
6735 mono_mb_patch_branch (mb, pos);
6738 case MARSHAL_ACTION_PUSH:
6740 mono_mb_emit_ldloc_addr (mb, conv_arg);
6742 mono_mb_emit_ldloc (mb, conv_arg);
6745 case MARSHAL_ACTION_CONV_RESULT:
6746 if (klass->delegate) {
6747 g_assert (!t->byref);
6748 mono_mb_emit_stloc (mb, 0);
6749 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6750 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6751 mono_mb_emit_ldloc (mb, 0);
6752 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6753 mono_mb_emit_stloc (mb, 3);
6756 mono_mb_emit_stloc (mb, 0);
6758 /* Make a copy since emit_conv modifies local 0 */
6759 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6760 mono_mb_emit_ldloc (mb, 0);
6761 mono_mb_emit_stloc (mb, loc);
6763 mono_mb_emit_byte (mb, CEE_LDNULL);
6764 mono_mb_emit_stloc (mb, 3);
6766 mono_mb_emit_ldloc (mb, 0);
6767 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6769 /* allocate result object */
6771 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6772 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6773 mono_mb_emit_stloc (mb, 3);
6777 mono_mb_emit_ldloc (mb, 3);
6778 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6779 mono_mb_emit_stloc (mb, 1);
6781 /* emit conversion code */
6782 emit_struct_conv (mb, klass, TRUE);
6784 emit_struct_free (mb, klass, loc);
6786 /* Free the pointer allocated by unmanaged code */
6787 mono_mb_emit_ldloc (mb, loc);
6788 mono_mb_emit_icall (mb, mono_marshal_free);
6789 mono_mb_patch_branch (mb, pos);
6793 case MARSHAL_ACTION_MANAGED_CONV_IN:
6794 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6796 if (klass->delegate) {
6797 g_assert (!t->byref);
6798 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6799 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6800 mono_mb_emit_ldarg (mb, argnum);
6801 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6802 mono_mb_emit_stloc (mb, conv_arg);
6806 if (klass == mono_defaults.stringbuilder_class) {
6807 MonoMarshalNative encoding;
6809 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6812 g_assert (encoding == MONO_NATIVE_LPSTR);
6814 g_assert (!t->byref);
6815 g_assert (encoding != -1);
6817 mono_mb_emit_ldarg (mb, argnum);
6818 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6819 mono_mb_emit_stloc (mb, conv_arg);
6823 /* The class can not have an automatic layout */
6824 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6825 mono_mb_emit_auto_layout_exception (mb, klass);
6829 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6830 mono_mb_emit_byte (mb, CEE_LDNULL);
6831 mono_mb_emit_stloc (mb, conv_arg);
6836 mono_mb_emit_ldarg (mb, argnum);
6840 /* Check for NULL and raise an exception */
6841 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6843 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6845 mono_mb_patch_branch (mb, pos2);
6846 mono_mb_emit_ldarg (mb, argnum);
6847 mono_mb_emit_byte (mb, CEE_LDIND_I);
6850 mono_mb_emit_stloc (mb, 0);
6852 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6853 mono_mb_emit_stloc (mb, conv_arg);
6855 mono_mb_emit_ldloc (mb, 0);
6856 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6858 /* Create and set dst */
6859 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6860 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6861 mono_mb_emit_stloc (mb, conv_arg);
6862 mono_mb_emit_ldloc (mb, conv_arg);
6863 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6864 mono_mb_emit_stloc (mb, 1);
6866 /* emit valuetype conversion code */
6867 emit_struct_conv (mb, klass, TRUE);
6869 mono_mb_patch_branch (mb, pos);
6872 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6874 /* Check for null */
6875 mono_mb_emit_ldloc (mb, conv_arg);
6876 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6877 mono_mb_emit_ldarg (mb, argnum);
6878 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6879 mono_mb_emit_byte (mb, CEE_STIND_REF);
6880 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6882 mono_mb_patch_branch (mb, pos);
6885 mono_mb_emit_ldloc (mb, conv_arg);
6886 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6887 mono_mb_emit_stloc (mb, 0);
6889 /* Allocate and set dest */
6890 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6891 mono_mb_emit_byte (mb, CEE_CONV_I);
6892 mono_mb_emit_icall (mb, mono_marshal_alloc);
6893 mono_mb_emit_stloc (mb, 1);
6895 /* Update argument pointer */
6896 mono_mb_emit_ldarg (mb, argnum);
6897 mono_mb_emit_ldloc (mb, 1);
6898 mono_mb_emit_byte (mb, CEE_STIND_I);
6900 /* emit valuetype conversion code */
6901 emit_struct_conv (mb, klass, FALSE);
6903 mono_mb_patch_branch (mb, pos2);
6905 /* byval [Out] marshalling */
6907 /* FIXME: Handle null */
6910 mono_mb_emit_ldloc (mb, conv_arg);
6911 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6912 mono_mb_emit_stloc (mb, 0);
6915 mono_mb_emit_ldarg (mb, argnum);
6916 mono_mb_emit_stloc (mb, 1);
6918 /* emit valuetype conversion code */
6919 emit_struct_conv (mb, klass, FALSE);
6923 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6924 if (klass->delegate) {
6925 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6926 mono_mb_emit_stloc (mb, 3);
6930 /* The class can not have an automatic layout */
6931 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6932 mono_mb_emit_auto_layout_exception (mb, klass);
6936 mono_mb_emit_stloc (mb, 0);
6937 /* Check for null */
6938 mono_mb_emit_ldloc (mb, 0);
6939 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6940 mono_mb_emit_byte (mb, CEE_LDNULL);
6941 mono_mb_emit_stloc (mb, 3);
6942 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6944 mono_mb_patch_branch (mb, pos);
6947 mono_mb_emit_ldloc (mb, 0);
6948 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6949 mono_mb_emit_stloc (mb, 0);
6951 /* Allocate and set dest */
6952 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6953 mono_mb_emit_byte (mb, CEE_CONV_I);
6954 mono_mb_emit_icall (mb, mono_marshal_alloc);
6955 mono_mb_emit_byte (mb, CEE_DUP);
6956 mono_mb_emit_stloc (mb, 1);
6957 mono_mb_emit_stloc (mb, 3);
6959 emit_struct_conv (mb, klass, FALSE);
6961 mono_mb_patch_branch (mb, pos2);
6965 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 ();
7089 #endif /* DISABLE_COM */
7092 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
7094 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
7095 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
7097 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
7099 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7110 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7111 MonoMarshalSpec *spec,
7112 int conv_arg, MonoType **conv_arg_type,
7113 MarshalAction action)
7115 MonoMethodBuilder *mb = m->mb;
7116 MonoClass *klass = mono_class_from_mono_type (t);
7117 gboolean need_convert, need_free;
7118 MonoMarshalNative encoding;
7120 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7123 case MARSHAL_ACTION_CONV_IN:
7124 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7125 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7127 if (klass->element_class->blittable) {
7128 mono_mb_emit_ldarg (mb, argnum);
7130 mono_mb_emit_byte (mb, CEE_LDIND_I);
7131 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7132 mono_mb_emit_stloc (mb, conv_arg);
7135 guint32 label1, label2, label3;
7136 int index_var, src_var, dest_ptr, esize;
7137 MonoMarshalConv conv;
7138 gboolean is_string = FALSE;
7140 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7142 eklass = klass->element_class;
7144 if (eklass == mono_defaults.string_class) {
7146 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7148 else if (eklass == mono_defaults.stringbuilder_class) {
7150 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7155 if (is_string && conv == -1) {
7156 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7157 mono_mb_emit_exception_marshal_directive (mb, msg);
7161 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7162 mono_mb_emit_ldarg (mb, argnum);
7164 mono_mb_emit_byte (mb, CEE_LDIND_I);
7165 mono_mb_emit_stloc (mb, src_var);
7168 mono_mb_emit_ldloc (mb, src_var);
7169 mono_mb_emit_stloc (mb, conv_arg);
7170 mono_mb_emit_ldloc (mb, src_var);
7171 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7174 esize = sizeof (gpointer);
7175 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7176 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7178 esize = mono_class_native_size (eklass, NULL);
7180 /* allocate space for the native struct and store the address */
7181 mono_mb_emit_icon (mb, esize);
7182 mono_mb_emit_ldloc (mb, src_var);
7183 mono_mb_emit_byte (mb, CEE_LDLEN);
7185 if (eklass == mono_defaults.string_class) {
7186 /* Make the array bigger for the terminating null */
7187 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7188 mono_mb_emit_byte (mb, CEE_ADD);
7190 mono_mb_emit_byte (mb, CEE_MUL);
7191 mono_mb_emit_byte (mb, CEE_PREFIX1);
7192 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7193 mono_mb_emit_stloc (mb, conv_arg);
7195 mono_mb_emit_ldloc (mb, conv_arg);
7196 mono_mb_emit_stloc (mb, dest_ptr);
7198 /* Emit marshalling loop */
7199 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7200 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7201 mono_mb_emit_stloc (mb, index_var);
7202 label2 = mono_mb_get_label (mb);
7203 mono_mb_emit_ldloc (mb, index_var);
7204 mono_mb_emit_ldloc (mb, src_var);
7205 mono_mb_emit_byte (mb, CEE_LDLEN);
7206 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7208 /* Emit marshalling code */
7211 mono_mb_emit_ldloc (mb, dest_ptr);
7212 mono_mb_emit_ldloc (mb, src_var);
7213 mono_mb_emit_ldloc (mb, index_var);
7214 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7215 mono_mb_emit_icall (mb, conv_to_icall (conv));
7216 mono_mb_emit_byte (mb, CEE_STIND_I);
7218 /* set the src_ptr */
7219 mono_mb_emit_ldloc (mb, src_var);
7220 mono_mb_emit_ldloc (mb, index_var);
7221 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7222 mono_mb_emit_stloc (mb, 0);
7225 mono_mb_emit_ldloc (mb, dest_ptr);
7226 mono_mb_emit_stloc (mb, 1);
7228 /* emit valuetype conversion code */
7229 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7232 mono_mb_emit_add_to_local (mb, index_var, 1);
7233 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7235 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7237 mono_mb_patch_branch (mb, label3);
7239 if (eklass == mono_defaults.string_class) {
7240 /* Null terminate */
7241 mono_mb_emit_ldloc (mb, dest_ptr);
7242 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7243 mono_mb_emit_byte (mb, CEE_STIND_REF);
7246 mono_mb_patch_branch (mb, label1);
7251 case MARSHAL_ACTION_CONV_OUT:
7252 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7253 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);
7254 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7257 if (need_convert || need_free) {
7258 /* FIXME: Optimize blittable case */
7260 guint32 label1, label2, label3;
7261 int index_var, src_ptr, loc, esize;
7263 eklass = klass->element_class;
7264 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7265 esize = sizeof (gpointer);
7266 else if (eklass == mono_defaults.char_class)
7267 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7269 esize = mono_class_native_size (eklass, NULL);
7270 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7271 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7274 mono_mb_emit_ldarg (mb, argnum);
7276 mono_mb_emit_byte (mb, CEE_LDIND_I);
7277 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7279 mono_mb_emit_ldloc (mb, conv_arg);
7280 mono_mb_emit_stloc (mb, src_ptr);
7282 /* Emit marshalling loop */
7283 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7284 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7285 mono_mb_emit_stloc (mb, index_var);
7286 label2 = mono_mb_get_label (mb);
7287 mono_mb_emit_ldloc (mb, index_var);
7288 mono_mb_emit_ldarg (mb, argnum);
7290 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7291 mono_mb_emit_byte (mb, CEE_LDLEN);
7292 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7294 /* Emit marshalling code */
7296 if (eklass == mono_defaults.stringbuilder_class) {
7297 gboolean need_free2;
7298 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7300 g_assert (conv != -1);
7303 mono_mb_emit_ldarg (mb, argnum);
7305 mono_mb_emit_byte (mb, CEE_LDIND_I);
7306 mono_mb_emit_ldloc (mb, index_var);
7307 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7310 mono_mb_emit_ldloc (mb, src_ptr);
7311 mono_mb_emit_byte (mb, CEE_LDIND_I);
7313 mono_mb_emit_icall (mb, conv_to_icall (conv));
7317 mono_mb_emit_ldloc (mb, src_ptr);
7318 mono_mb_emit_byte (mb, CEE_LDIND_I);
7320 mono_mb_emit_icall (mb, mono_marshal_free);
7323 else if (eklass == mono_defaults.string_class) {
7326 mono_mb_emit_ldloc (mb, src_ptr);
7327 mono_mb_emit_byte (mb, CEE_LDIND_I);
7329 mono_mb_emit_icall (mb, mono_marshal_free);
7334 /* set the src_ptr */
7335 mono_mb_emit_ldloc (mb, src_ptr);
7336 mono_mb_emit_stloc (mb, 0);
7339 mono_mb_emit_ldarg (mb, argnum);
7341 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7342 mono_mb_emit_ldloc (mb, index_var);
7343 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7344 mono_mb_emit_stloc (mb, 1);
7346 /* emit valuetype conversion code */
7347 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7351 mono_mb_emit_ldloc (mb, src_ptr);
7352 mono_mb_emit_stloc (mb, loc);
7353 mono_mb_emit_ldloc (mb, loc);
7355 emit_struct_free (mb, eklass, loc);
7359 mono_mb_emit_add_to_local (mb, index_var, 1);
7360 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7362 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7364 mono_mb_patch_branch (mb, label1);
7365 mono_mb_patch_branch (mb, label3);
7368 if (klass->element_class->blittable) {
7369 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7371 mono_mb_emit_ldarg (mb, argnum);
7372 mono_mb_emit_ldloc (mb, conv_arg);
7373 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7378 case MARSHAL_ACTION_PUSH:
7380 mono_mb_emit_ldloc_addr (mb, conv_arg);
7382 mono_mb_emit_ldloc (mb, conv_arg);
7385 case MARSHAL_ACTION_CONV_RESULT:
7386 /* fixme: we need conversions here */
7387 mono_mb_emit_stloc (mb, 3);
7390 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7392 guint32 label1, label2, label3;
7393 int index_var, src_ptr, loc, esize, param_num, num_elem;
7394 MonoMarshalConv conv;
7395 gboolean is_string = FALSE;
7397 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7398 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7401 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7402 mono_mb_emit_exception_marshal_directive (mb, msg);
7406 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7407 mono_mb_emit_exception_marshal_directive (mb, msg);
7410 if (spec->native != MONO_NATIVE_LPARRAY) {
7411 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7412 mono_mb_emit_exception_marshal_directive (mb, msg);
7416 /* FIXME: t is from the method which is wrapped, not the delegate type */
7417 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7419 param_num = spec->data.array_data.param_num;
7420 num_elem = spec->data.array_data.num_elem;
7421 if (spec->data.array_data.elem_mult == 0)
7422 /* param_num is not specified */
7425 if (param_num == -1) {
7426 if (num_elem <= 0) {
7427 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7428 mono_mb_emit_exception_marshal_directive (mb, msg);
7433 /* FIXME: Optimize blittable case */
7435 eklass = klass->element_class;
7436 if (eklass == mono_defaults.string_class) {
7438 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7440 else if (eklass == mono_defaults.stringbuilder_class) {
7442 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7447 mono_marshal_load_type_info (eklass);
7450 esize = sizeof (gpointer);
7452 esize = mono_class_native_size (eklass, NULL);
7453 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7454 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7456 mono_mb_emit_byte (mb, CEE_LDNULL);
7457 mono_mb_emit_stloc (mb, conv_arg);
7459 /* Check param index */
7460 if (param_num != -1) {
7461 if (param_num >= m->sig->param_count) {
7462 char *msg = g_strdup ("Array size control parameter index is out of range.");
7463 mono_mb_emit_exception_marshal_directive (mb, msg);
7466 switch (m->sig->params [param_num]->type) {
7479 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7480 mono_mb_emit_exception_marshal_directive (mb, msg);
7487 mono_mb_emit_ldarg (mb, argnum);
7488 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7490 mono_mb_emit_ldarg (mb, argnum);
7491 mono_mb_emit_stloc (mb, src_ptr);
7493 /* Create managed array */
7495 * The LPArray marshalling spec says that sometimes param_num starts
7496 * from 1, sometimes it starts from 0. But MS seems to allways start
7500 if (param_num == -1) {
7501 mono_mb_emit_icon (mb, num_elem);
7503 mono_mb_emit_ldarg (mb, param_num);
7505 mono_mb_emit_icon (mb, num_elem);
7506 mono_mb_emit_byte (mb, CEE_ADD);
7508 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7511 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7512 mono_mb_emit_stloc (mb, conv_arg);
7514 if (eklass->blittable) {
7515 mono_mb_emit_ldloc (mb, conv_arg);
7516 mono_mb_emit_byte (mb, CEE_CONV_I);
7517 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7518 mono_mb_emit_byte (mb, CEE_ADD);
7519 mono_mb_emit_ldarg (mb, argnum);
7520 mono_mb_emit_ldloc (mb, conv_arg);
7521 mono_mb_emit_byte (mb, CEE_LDLEN);
7522 mono_mb_emit_icon (mb, esize);
7523 mono_mb_emit_byte (mb, CEE_MUL);
7524 mono_mb_emit_byte (mb, CEE_PREFIX1);
7525 mono_mb_emit_byte (mb, CEE_CPBLK);
7529 /* Emit marshalling loop */
7530 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7531 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7532 mono_mb_emit_stloc (mb, index_var);
7533 label2 = mono_mb_get_label (mb);
7534 mono_mb_emit_ldloc (mb, index_var);
7535 mono_mb_emit_ldloc (mb, conv_arg);
7536 mono_mb_emit_byte (mb, CEE_LDLEN);
7537 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7539 /* Emit marshalling code */
7541 g_assert (conv != -1);
7543 mono_mb_emit_ldloc (mb, conv_arg);
7544 mono_mb_emit_ldloc (mb, index_var);
7546 mono_mb_emit_ldloc (mb, src_ptr);
7547 mono_mb_emit_byte (mb, CEE_LDIND_I);
7549 mono_mb_emit_icall (mb, conv_to_icall (conv));
7550 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7553 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7554 mono_mb_emit_exception_marshal_directive (mb, msg);
7558 mono_mb_emit_add_to_local (mb, index_var, 1);
7559 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7561 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7563 mono_mb_patch_branch (mb, label1);
7564 mono_mb_patch_branch (mb, label3);
7568 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7570 guint32 label1, label2, label3;
7571 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7572 MonoMarshalConv conv;
7573 gboolean is_string = FALSE;
7576 /* Already handled in CONV_IN */
7579 /* These are already checked in CONV_IN */
7580 g_assert (!t->byref);
7581 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7582 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7584 param_num = spec->data.array_data.param_num;
7585 num_elem = spec->data.array_data.num_elem;
7587 if (spec->data.array_data.elem_mult == 0)
7588 /* param_num is not specified */
7591 if (param_num == -1) {
7592 if (num_elem <= 0) {
7593 g_assert_not_reached ();
7597 /* FIXME: Optimize blittable case */
7599 eklass = klass->element_class;
7600 if (eklass == mono_defaults.string_class) {
7602 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7604 else if (eklass == mono_defaults.stringbuilder_class) {
7606 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7611 mono_marshal_load_type_info (eklass);
7614 esize = sizeof (gpointer);
7616 esize = mono_class_native_size (eklass, NULL);
7618 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7619 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7622 mono_mb_emit_ldloc (mb, conv_arg);
7623 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7625 mono_mb_emit_ldarg (mb, argnum);
7626 mono_mb_emit_stloc (mb, dest_ptr);
7628 if (eklass->blittable) {
7630 mono_mb_emit_ldarg (mb, argnum);
7632 mono_mb_emit_ldloc (mb, conv_arg);
7633 mono_mb_emit_byte (mb, CEE_CONV_I);
7634 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7635 mono_mb_emit_byte (mb, CEE_ADD);
7637 mono_mb_emit_ldloc (mb, conv_arg);
7638 mono_mb_emit_byte (mb, CEE_LDLEN);
7639 mono_mb_emit_icon (mb, esize);
7640 mono_mb_emit_byte (mb, CEE_MUL);
7641 mono_mb_emit_byte (mb, CEE_PREFIX1);
7642 mono_mb_emit_byte (mb, CEE_CPBLK);
7646 /* Emit marshalling loop */
7647 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7648 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7649 mono_mb_emit_stloc (mb, index_var);
7650 label2 = mono_mb_get_label (mb);
7651 mono_mb_emit_ldloc (mb, index_var);
7652 mono_mb_emit_ldloc (mb, conv_arg);
7653 mono_mb_emit_byte (mb, CEE_LDLEN);
7654 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7656 /* Emit marshalling code */
7658 g_assert (conv != -1);
7661 mono_mb_emit_ldloc (mb, dest_ptr);
7664 mono_mb_emit_ldloc (mb, conv_arg);
7665 mono_mb_emit_ldloc (mb, index_var);
7667 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7669 mono_mb_emit_icall (mb, conv_to_icall (conv));
7670 mono_mb_emit_byte (mb, CEE_STIND_I);
7673 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7674 mono_mb_emit_exception_marshal_directive (mb, msg);
7678 mono_mb_emit_add_to_local (mb, index_var, 1);
7679 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7681 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7683 mono_mb_patch_branch (mb, label1);
7684 mono_mb_patch_branch (mb, label3);
7688 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7690 guint32 label1, label2, label3;
7691 int index_var, src, dest, esize;
7692 MonoMarshalConv conv = -1;
7693 gboolean is_string = FALSE;
7695 g_assert (!t->byref);
7697 eklass = klass->element_class;
7699 mono_marshal_load_type_info (eklass);
7701 if (eklass == mono_defaults.string_class) {
7703 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7706 g_assert_not_reached ();
7710 esize = sizeof (gpointer);
7711 else if (eklass == mono_defaults.char_class)
7712 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7714 esize = mono_class_native_size (eklass, NULL);
7716 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7717 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7719 mono_mb_emit_stloc (mb, src);
7720 mono_mb_emit_ldloc (mb, src);
7721 mono_mb_emit_stloc (mb, 3);
7723 /* Check for null */
7724 mono_mb_emit_ldloc (mb, src);
7725 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7727 /* Allocate native array */
7728 mono_mb_emit_icon (mb, esize);
7729 mono_mb_emit_ldloc (mb, src);
7730 mono_mb_emit_byte (mb, CEE_LDLEN);
7732 if (eklass == mono_defaults.string_class) {
7733 /* Make the array bigger for the terminating null */
7734 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7735 mono_mb_emit_byte (mb, CEE_ADD);
7737 mono_mb_emit_byte (mb, CEE_MUL);
7738 mono_mb_emit_icall (mb, mono_marshal_alloc);
7739 mono_mb_emit_stloc (mb, dest);
7740 mono_mb_emit_ldloc (mb, dest);
7741 mono_mb_emit_stloc (mb, 3);
7743 /* Emit marshalling loop */
7744 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7745 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7746 mono_mb_emit_stloc (mb, index_var);
7747 label2 = mono_mb_get_label (mb);
7748 mono_mb_emit_ldloc (mb, index_var);
7749 mono_mb_emit_ldloc (mb, src);
7750 mono_mb_emit_byte (mb, CEE_LDLEN);
7751 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7753 /* Emit marshalling code */
7755 g_assert (conv != -1);
7758 mono_mb_emit_ldloc (mb, dest);
7761 mono_mb_emit_ldloc (mb, src);
7762 mono_mb_emit_ldloc (mb, index_var);
7764 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7766 mono_mb_emit_icall (mb, conv_to_icall (conv));
7767 mono_mb_emit_byte (mb, CEE_STIND_I);
7770 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7771 mono_mb_emit_exception_marshal_directive (mb, msg);
7775 mono_mb_emit_add_to_local (mb, index_var, 1);
7776 mono_mb_emit_add_to_local (mb, dest, esize);
7778 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7780 mono_mb_patch_branch (mb, label3);
7781 mono_mb_patch_branch (mb, label1);
7785 g_assert_not_reached ();
7792 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7793 MonoMarshalSpec *spec,
7794 int conv_arg, MonoType **conv_arg_type,
7795 MarshalAction action)
7797 MonoMethodBuilder *mb = m->mb;
7800 case MARSHAL_ACTION_CONV_IN: {
7801 MonoType *local_type;
7803 guint8 ldc_op = CEE_LDC_I4_1;
7806 local_type = &mono_defaults.int32_class->byval_arg;
7808 switch (spec->native) {
7809 case MONO_NATIVE_I1:
7810 case MONO_NATIVE_U1:
7811 local_type = &mono_defaults.byte_class->byval_arg;
7813 case MONO_NATIVE_VARIANTBOOL:
7814 local_type = &mono_defaults.int16_class->byval_arg;
7815 ldc_op = CEE_LDC_I4_M1;
7817 case MONO_NATIVE_BOOLEAN:
7818 local_type = &mono_defaults.int32_class->byval_arg;
7821 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7822 local_type = &mono_defaults.int32_class->byval_arg;
7827 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7829 *conv_arg_type = local_type;
7830 conv_arg = mono_mb_add_local (mb, local_type);
7832 mono_mb_emit_ldarg (mb, argnum);
7834 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7835 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7836 mono_mb_emit_byte (mb, ldc_op);
7837 mono_mb_emit_stloc (mb, conv_arg);
7838 mono_mb_patch_branch (mb, label_false);
7843 case MARSHAL_ACTION_CONV_OUT:
7845 int label_false, label_end;
7849 mono_mb_emit_ldarg (mb, argnum);
7850 mono_mb_emit_ldloc (mb, conv_arg);
7852 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7853 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7855 label_end = mono_mb_emit_branch (mb, CEE_BR);
7856 mono_mb_patch_branch (mb, label_false);
7857 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7858 mono_mb_patch_branch (mb, label_end);
7860 mono_mb_emit_byte (mb, CEE_STIND_I1);
7864 case MARSHAL_ACTION_PUSH:
7866 mono_mb_emit_ldloc_addr (mb, conv_arg);
7868 mono_mb_emit_ldloc (mb, conv_arg);
7870 mono_mb_emit_ldarg (mb, argnum);
7873 case MARSHAL_ACTION_CONV_RESULT:
7874 /* maybe we need to make sure that it fits within 8 bits */
7875 mono_mb_emit_stloc (mb, 3);
7878 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7879 MonoClass* conv_arg_class = mono_defaults.int32_class;
7880 guint8 ldop = CEE_LDIND_I4;
7881 int label_null, label_false;
7883 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7886 switch (spec->native) {
7887 case MONO_NATIVE_I1:
7888 case MONO_NATIVE_U1:
7889 conv_arg_class = mono_defaults.byte_class;
7890 ldop = CEE_LDIND_I1;
7892 case MONO_NATIVE_VARIANTBOOL:
7893 conv_arg_class = mono_defaults.int16_class;
7894 ldop = CEE_LDIND_I2;
7896 case MONO_NATIVE_BOOLEAN:
7899 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7904 *conv_arg_type = &conv_arg_class->this_arg;
7906 *conv_arg_type = &conv_arg_class->byval_arg;
7909 mono_mb_emit_ldarg (mb, argnum);
7913 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7914 mono_mb_emit_ldarg (mb, argnum);
7915 mono_mb_emit_byte (mb, ldop);
7919 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7920 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7921 mono_mb_emit_stloc (mb, conv_arg);
7922 mono_mb_patch_branch (mb, label_false);
7925 mono_mb_patch_branch (mb, label_null);
7929 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7930 guint8 stop = CEE_STIND_I4;
7931 guint8 ldc_op = CEE_LDC_I4_1;
7932 int label_null,label_false, label_end;;
7937 switch (spec->native) {
7938 case MONO_NATIVE_I1:
7939 case MONO_NATIVE_U1:
7940 stop = CEE_STIND_I1;
7942 case MONO_NATIVE_VARIANTBOOL:
7943 stop = CEE_STIND_I2;
7944 ldc_op = CEE_LDC_I4_M1;
7952 mono_mb_emit_ldarg (mb, argnum);
7953 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7955 mono_mb_emit_ldarg (mb, argnum);
7956 mono_mb_emit_ldloc (mb, conv_arg);
7958 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7959 mono_mb_emit_byte (mb, ldc_op);
7960 label_end = mono_mb_emit_branch (mb, CEE_BR);
7962 mono_mb_patch_branch (mb, label_false);
7963 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7964 mono_mb_patch_branch (mb, label_end);
7966 mono_mb_emit_byte (mb, stop);
7967 mono_mb_patch_branch (mb, label_null);
7972 g_assert_not_reached ();
7979 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7980 MonoMarshalSpec *spec, int conv_arg,
7981 MonoType **conv_arg_type, MarshalAction action)
7983 MonoMethodBuilder *mb = m->mb;
7986 case MARSHAL_ACTION_CONV_IN:
7987 /* MS seems to allow this in some cases, ie. bxc #158 */
7989 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7990 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7991 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7996 case MARSHAL_ACTION_PUSH:
7997 mono_mb_emit_ldarg (mb, argnum);
8000 case MARSHAL_ACTION_CONV_RESULT:
8001 /* no conversions necessary */
8002 mono_mb_emit_stloc (mb, 3);
8013 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8014 MonoMarshalSpec *spec, int conv_arg,
8015 MonoType **conv_arg_type, MarshalAction action)
8017 MonoMethodBuilder *mb = m->mb;
8020 case MARSHAL_ACTION_PUSH:
8021 /* fixme: dont know how to marshal that. We cant simply
8022 * convert it to a one byte UTF8 character, because an
8023 * unicode character may need more that one byte in UTF8 */
8024 mono_mb_emit_ldarg (mb, argnum);
8027 case MARSHAL_ACTION_CONV_RESULT:
8028 /* fixme: we need conversions here */
8029 mono_mb_emit_stloc (mb, 3);
8040 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8041 MonoMarshalSpec *spec, int conv_arg,
8042 MonoType **conv_arg_type, MarshalAction action)
8044 MonoMethodBuilder *mb = m->mb;
8047 case MARSHAL_ACTION_PUSH:
8048 mono_mb_emit_ldarg (mb, argnum);
8051 case MARSHAL_ACTION_CONV_RESULT:
8052 /* no conversions necessary */
8053 mono_mb_emit_stloc (mb, 3);
8064 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8065 MonoMarshalSpec *spec, int conv_arg,
8066 MonoType **conv_arg_type, MarshalAction action)
8068 /* Ensure that we have marshalling info for this param */
8069 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8071 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8072 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8074 if (spec && spec->native == MONO_NATIVE_ASANY)
8075 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8078 case MONO_TYPE_VALUETYPE:
8079 if (t->data.klass == mono_defaults.handleref_class)
8080 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8082 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8083 case MONO_TYPE_STRING:
8084 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8085 case MONO_TYPE_CLASS:
8086 case MONO_TYPE_OBJECT:
8088 if (spec && spec->native == MONO_NATIVE_STRUCT)
8089 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8091 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8092 spec->native == MONO_NATIVE_IDISPATCH ||
8093 spec->native == MONO_NATIVE_INTERFACE))
8094 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8095 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
8096 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
8097 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
8098 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8101 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8102 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8103 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8105 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8106 case MONO_TYPE_ARRAY:
8107 case MONO_TYPE_SZARRAY:
8108 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8109 case MONO_TYPE_BOOLEAN:
8110 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8112 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8113 case MONO_TYPE_CHAR:
8114 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8127 case MONO_TYPE_FNPTR:
8128 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8129 case MONO_TYPE_GENERICINST:
8130 if (mono_type_generic_inst_is_valuetype (t))
8131 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8133 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8140 * mono_marshal_emit_native_wrapper:
8141 * @image: the image to use for looking up custom marshallers
8142 * @sig: The signature of the native function
8143 * @piinfo: Marshalling information
8144 * @mspecs: Marshalling information
8145 * @aot: whenever the created method will be compiled by the AOT compiler
8146 * @method: if non-NULL, the pinvoke method to call
8147 * @check_exceptions: Whenever to check for pending exceptions after the native call
8148 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
8150 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8153 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)
8155 EmitMarshalContext m;
8156 MonoMethodSignature *csig;
8158 int i, argnum, *tmp_locals;
8159 int type, param_shift = 0;
8160 static MonoMethodSignature *get_last_error_sig = NULL;
8165 /* we copy the signature, so that we can set pinvoke to 0 */
8167 /* The function address is passed as the first argument */
8168 g_assert (!sig->hasthis);
8171 csig = signature_dup (mb->method->klass->image, sig);
8179 /* we allocate local for use with emit_struct_conv() */
8180 /* allocate local 0 (pointer) src_ptr */
8181 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8182 /* allocate local 1 (pointer) dst_ptr */
8183 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8184 /* allocate local 2 (boolean) delete_old */
8185 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8187 /* delete_old = FALSE */
8188 mono_mb_emit_icon (mb, 0);
8189 mono_mb_emit_stloc (mb, 2);
8191 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8192 /* allocate local 3 to store the return value */
8193 mono_mb_add_local (mb, sig->ret);
8196 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8197 /* Return type custom marshaling */
8199 * Since we can't determine the return type of the unmanaged function,
8200 * we assume it returns a pointer, and pass that pointer to
8201 * MarshalNativeToManaged.
8203 csig->ret = &mono_defaults.int_class->byval_arg;
8206 /* we first do all conversions */
8207 tmp_locals = alloca (sizeof (int) * sig->param_count);
8208 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8210 for (i = 0; i < sig->param_count; i ++) {
8211 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8214 /* push all arguments */
8217 mono_mb_emit_byte (mb, CEE_LDARG_0);
8219 for (i = 0; i < sig->param_count; i++) {
8220 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8223 /* call the native method */
8225 mono_mb_emit_byte (mb, CEE_LDARG_0);
8226 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
8227 mono_mb_emit_byte (mb, CEE_LDIND_I);
8228 mono_mb_emit_calli (mb, csig);
8229 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8231 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8233 g_assert_not_reached ();
8238 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8239 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8240 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8241 mono_mb_emit_calli (mb, csig);
8243 mono_mb_emit_native_call (mb, csig, func);
8247 /* Set LastError if needed */
8248 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8249 if (!get_last_error_sig) {
8250 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8251 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8252 get_last_error_sig->pinvoke = 1;
8257 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8258 * clobber its value.
8260 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8261 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8263 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8267 /* convert the result */
8268 if (!sig->ret->byref) {
8269 MonoMarshalSpec *spec = mspecs [0];
8270 type = sig->ret->type;
8272 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8273 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8278 case MONO_TYPE_VOID:
8280 case MONO_TYPE_VALUETYPE:
8281 klass = sig->ret->data.klass;
8282 if (klass->enumtype) {
8283 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8286 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8300 case MONO_TYPE_FNPTR:
8301 case MONO_TYPE_STRING:
8302 case MONO_TYPE_CLASS:
8303 case MONO_TYPE_OBJECT:
8304 case MONO_TYPE_BOOLEAN:
8305 case MONO_TYPE_ARRAY:
8306 case MONO_TYPE_SZARRAY:
8307 case MONO_TYPE_CHAR:
8309 case MONO_TYPE_GENERICINST:
8310 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8312 case MONO_TYPE_TYPEDBYREF:
8314 g_warning ("return type 0x%02x unknown", sig->ret->type);
8315 g_assert_not_reached ();
8319 mono_mb_emit_stloc (mb, 3);
8323 * Need to call this after converting the result since MONO_VTADDR needs
8324 * to be adjacent to the call instruction.
8326 if (check_exceptions)
8327 emit_thread_interrupt_checkpoint (mb);
8329 /* we need to convert byref arguments back and free string arrays */
8330 for (i = 0; i < sig->param_count; i++) {
8331 MonoType *t = sig->params [i];
8332 MonoMarshalSpec *spec = mspecs [i + 1];
8334 argnum = i + param_shift;
8336 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8337 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8342 case MONO_TYPE_STRING:
8343 case MONO_TYPE_VALUETYPE:
8344 case MONO_TYPE_CLASS:
8345 case MONO_TYPE_OBJECT:
8346 case MONO_TYPE_SZARRAY:
8347 case MONO_TYPE_BOOLEAN:
8348 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8353 if (!MONO_TYPE_IS_VOID(sig->ret))
8354 mono_mb_emit_ldloc (mb, 3);
8356 mono_mb_emit_byte (mb, CEE_RET);
8359 G_GNUC_UNUSED static void
8360 code_for (MonoMethod *method) {
8361 MonoMethodHeader *header = mono_method_get_header (method);
8362 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));
8366 * mono_marshal_get_native_wrapper:
8367 * @method: The MonoMethod to wrap.
8368 * @check_exceptions: Whenever to check for pending exceptions
8370 * generates IL code for the pinvoke wrapper (the generated method
8371 * calls the unmanaged code in piinfo->addr)
8372 * The wrapper info for the wrapper is a WrapperInfo structure.
8375 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8377 MonoMethodSignature *sig, *csig;
8378 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8379 MonoMethodBuilder *mb;
8380 MonoMarshalSpec **mspecs;
8383 gboolean pinvoke = FALSE;
8386 const char *exc_class = "MissingMethodException";
8387 const char *exc_arg = NULL;
8390 g_assert (method != NULL);
8391 g_assert (mono_method_signature (method)->pinvoke);
8394 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8396 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8397 if ((res = mono_marshal_find_in_cache (cache, method)))
8400 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8402 return mono_cominterop_get_native_wrapper (method);
8404 g_assert_not_reached ();
8408 sig = mono_method_signature (method);
8410 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8411 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8414 if (!piinfo->addr) {
8416 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8417 exc_arg = "Method contains unsupported native code";
8419 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8421 piinfo->addr = mono_lookup_internal_call (method);
8424 /* hack - redirect certain string constructors to CreateString */
8425 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8426 g_assert (!pinvoke);
8427 g_assert (method->string_ctor);
8428 g_assert (sig->hasthis);
8430 /* CreateString returns a value */
8431 csig = signature_dup (method->klass->image, sig);
8432 csig->ret = &mono_defaults.string_class->byval_arg;
8436 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8437 if (!strcmp ("CreateString", res->name) &&
8438 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8441 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8442 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8444 /* create a wrapper to preserve .ctor in stack trace */
8445 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8447 mono_mb_emit_byte (mb, CEE_LDARG_0);
8448 for (i = 1; i <= csig->param_count; i++)
8449 mono_mb_emit_ldarg (mb, i);
8450 mono_mb_emit_managed_call (mb, res, NULL);
8451 mono_mb_emit_byte (mb, CEE_RET);
8453 /* use native_wrapper_cache because internal calls are looked up there */
8454 res = mono_mb_create_and_cache (cache, method,
8455 mb, csig, csig->param_count + 1);
8459 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRING_CTOR);
8460 info->d.string_ctor.method = method;
8462 mono_marshal_set_wrapper_info (res, info);
8468 /* exception will be thrown */
8469 piinfo->addr = NULL;
8470 g_warning ("cannot find CreateString for .ctor");
8473 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8475 mb->method->save_lmf = 1;
8478 * In AOT mode and embedding scenarios, it is possible that the icall is not
8479 * registered in the runtime doing the AOT compilation.
8481 if (!piinfo->addr && !aot) {
8482 mono_mb_emit_exception (mb, exc_class, exc_arg);
8483 csig = signature_dup (method->klass->image, sig);
8485 res = mono_mb_create_and_cache (cache, method,
8486 mb, csig, csig->param_count + 16);
8491 /* internal calls: we simply push all arguments and call the method (no conversions) */
8492 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8494 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
8496 csig = signature_dup (method->klass->image, sig);
8498 /* hack - string constructors returns a value */
8499 if (method->string_ctor)
8500 csig->ret = &mono_defaults.string_class->byval_arg;
8506 * Add a null check since public icalls can be called with 'call' which
8507 * does no such check.
8509 mono_mb_emit_byte (mb, CEE_LDARG_0);
8510 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8511 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8512 mono_mb_patch_branch (mb, pos);
8514 mono_mb_emit_byte (mb, CEE_LDARG_0);
8517 for (i = 0; i < sig->param_count; i++)
8518 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8521 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8522 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8523 mono_mb_emit_calli (mb, csig);
8525 g_assert (piinfo->addr);
8526 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8528 if (check_exceptions)
8529 emit_thread_interrupt_checkpoint (mb);
8530 mono_mb_emit_byte (mb, CEE_RET);
8532 csig = signature_dup (method->klass->image, csig);
8534 res = mono_mb_create_and_cache (cache, method,
8535 mb, csig, csig->param_count + 16);
8537 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8538 info->d.managed_to_native.method = method;
8539 mono_marshal_set_wrapper_info (res, info);
8547 g_assert (piinfo->addr);
8549 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8550 mono_method_get_marshal_info (method, mspecs);
8552 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8554 csig = signature_dup (method->klass->image, sig);
8556 res = mono_mb_create_and_cache (cache, method,
8557 mb, csig, csig->param_count + 16);
8560 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8561 info->d.managed_to_native.method = method;
8562 mono_marshal_set_wrapper_info (res, info);
8564 for (i = sig->param_count; i >= 0; i--)
8566 mono_metadata_free_marshal_spec (mspecs [i]);
8569 /* code_for (res); */
8575 * mono_marshal_get_native_func_wrapper:
8576 * @image: The image to use for memory allocation and for looking up custom marshallers.
8577 * @sig: The signature of the function
8578 * @func: The native function to wrap
8580 * Returns a wrapper method around native functions, similar to the pinvoke
8584 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8585 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8587 MonoMethodSignature *csig;
8589 MonoMethodBuilder *mb;
8594 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8595 if ((res = mono_marshal_find_in_cache (cache, func)))
8598 name = g_strdup_printf ("wrapper_native_%p", func);
8599 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8600 mb->method->save_lmf = 1;
8602 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8604 csig = signature_dup (image, sig);
8606 res = mono_mb_create_and_cache (cache, func,
8607 mb, csig, csig->param_count + 16);
8610 mono_marshal_set_wrapper_info (res, NULL);
8616 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8620 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8622 MonoMethodSignature *sig, *csig;
8623 MonoMethodBuilder *mb;
8628 MonoMethodPInvoke mpiinfo;
8629 MonoMethodPInvoke *piinfo = &mpiinfo;
8630 MonoMarshalSpec **mspecs;
8631 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8632 MonoImage *image = invoke->klass->image;
8635 // FIXME: include UnmanagedFunctionPointerAttribute info
8638 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8640 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8641 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8644 memset (&mpiinfo, 0, sizeof (mpiinfo));
8645 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8647 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8648 mono_method_get_marshal_info (invoke, mspecs);
8649 /* Freed below so don't alloc from mempool */
8650 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8653 name = g_strdup_printf ("wrapper_aot_native");
8654 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8655 mb->method->save_lmf = 1;
8657 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8659 g_assert (!sig->hasthis);
8660 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
8662 res = mono_mb_create_and_cache (cache, invoke,
8663 mb, csig, csig->param_count + 16);
8666 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8667 info->d.managed_to_native.method = invoke;
8669 mono_marshal_set_wrapper_info (res, info);
8671 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8673 mono_metadata_free_marshal_spec (mspecs [i]);
8681 * mono_marshal_emit_managed_wrapper:
8683 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8684 * the delegate which wraps the managed method to be called. For closed delegates,
8685 * it could have fewer parameters than the method it wraps.
8686 * THIS_LOC is the memory location where the target of the delegate is stored.
8689 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8691 MonoMethodSignature *sig, *csig;
8693 gboolean closed = FALSE;
8698 /* allocate local 0 (pointer) src_ptr */
8699 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8700 /* allocate local 1 (pointer) dst_ptr */
8701 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8702 /* allocate local 2 (boolean) delete_old */
8703 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8705 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8706 /* Closed delegate */
8707 g_assert (sig->param_count == invoke_sig->param_count + 1);
8709 /* Use a new signature without the first argument */
8710 sig = mono_metadata_signature_dup (sig);
8711 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8712 sig->param_count --;
8715 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8716 /* allocate local 3 to store the return value */
8717 mono_mb_add_local (mb, sig->ret);
8720 mono_mb_emit_icon (mb, 0);
8721 mono_mb_emit_stloc (mb, 2);
8724 * Might need to attach the thread to the JIT or change the
8725 * domain for the callback.
8727 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8728 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8730 /* we first do all conversions */
8731 tmp_locals = alloca (sizeof (int) * sig->param_count);
8732 for (i = 0; i < sig->param_count; i ++) {
8733 MonoType *t = sig->params [i];
8736 case MONO_TYPE_OBJECT:
8737 case MONO_TYPE_CLASS:
8738 case MONO_TYPE_VALUETYPE:
8739 case MONO_TYPE_ARRAY:
8740 case MONO_TYPE_SZARRAY:
8741 case MONO_TYPE_STRING:
8742 case MONO_TYPE_BOOLEAN:
8743 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8752 emit_thread_interrupt_checkpoint (mb);
8755 if (target_handle) {
8756 mono_mb_emit_icon (mb, (gint32)target_handle);
8757 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8760 g_assert_not_reached ();
8762 } else if (closed) {
8763 mono_mb_emit_icon (mb, (gint32)target_handle);
8764 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8767 for (i = 0; i < sig->param_count; i++) {
8768 MonoType *t = sig->params [i];
8770 if (tmp_locals [i]) {
8772 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8774 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8777 mono_mb_emit_ldarg (mb, i);
8780 mono_mb_emit_managed_call (mb, method, NULL);
8782 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8783 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8784 } else if (!sig->ret->byref) {
8785 switch (sig->ret->type) {
8786 case MONO_TYPE_VOID:
8788 case MONO_TYPE_BOOLEAN:
8791 case MONO_TYPE_CHAR:
8803 case MONO_TYPE_OBJECT:
8804 mono_mb_emit_stloc (mb, 3);
8806 case MONO_TYPE_STRING:
8807 csig->ret = &mono_defaults.int_class->byval_arg;
8808 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8810 case MONO_TYPE_VALUETYPE:
8811 case MONO_TYPE_CLASS:
8812 case MONO_TYPE_SZARRAY:
8813 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8816 g_warning ("return type 0x%02x unknown", sig->ret->type);
8817 g_assert_not_reached ();
8820 mono_mb_emit_stloc (mb, 3);
8823 /* Convert byref arguments back */
8824 for (i = 0; i < sig->param_count; i ++) {
8825 MonoType *t = sig->params [i];
8826 MonoMarshalSpec *spec = mspecs [i + 1];
8828 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8829 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8831 else if (t->byref) {
8833 case MONO_TYPE_CLASS:
8834 case MONO_TYPE_VALUETYPE:
8835 case MONO_TYPE_OBJECT:
8836 case MONO_TYPE_STRING:
8837 case MONO_TYPE_BOOLEAN:
8838 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8842 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8843 /* The [Out] information is encoded in the delegate signature */
8845 case MONO_TYPE_SZARRAY:
8846 case MONO_TYPE_CLASS:
8847 case MONO_TYPE_VALUETYPE:
8848 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8851 g_assert_not_reached ();
8856 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8857 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8859 if (m->retobj_var) {
8860 mono_mb_emit_ldloc (mb, m->retobj_var);
8861 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8862 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8865 if (!MONO_TYPE_IS_VOID(sig->ret))
8866 mono_mb_emit_ldloc (mb, 3);
8867 mono_mb_emit_byte (mb, CEE_RET);
8876 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8878 MonoMethodSignature *sig;
8883 * Under windows, delegates passed to native code must use the STDCALL
8884 * calling convention.
8886 csig->call_convention = MONO_CALL_STDCALL;
8889 sig = mono_method_signature (method);
8891 /* Change default calling convention if needed */
8892 /* Why is this a modopt ? */
8893 if (sig->ret && sig->ret->num_mods) {
8894 for (i = 0; i < sig->ret->num_mods; ++i) {
8895 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8896 g_assert (cmod_class);
8897 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8898 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8899 csig->call_convention = MONO_CALL_C;
8900 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8901 csig->call_convention = MONO_CALL_STDCALL;
8902 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8903 csig->call_convention = MONO_CALL_FASTCALL;
8904 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8905 csig->call_convention = MONO_CALL_THISCALL;
8912 * generates IL code to call managed methods from unmanaged code
8913 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8916 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8918 static MonoClass *UnmanagedFunctionPointerAttribute;
8919 MonoMethodSignature *sig, *csig, *invoke_sig;
8920 MonoMethodBuilder *mb;
8921 MonoMethod *res, *invoke;
8922 MonoMarshalSpec **mspecs;
8923 MonoMethodPInvoke piinfo;
8926 EmitMarshalContext m;
8928 g_assert (method != NULL);
8929 g_assert (!mono_method_signature (method)->pinvoke);
8932 * FIXME: Should cache the method+delegate type pair, since the same method
8933 * could be called with different delegates, thus different marshalling
8936 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8937 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8940 invoke = mono_get_delegate_invoke (delegate_klass);
8941 invoke_sig = mono_method_signature (invoke);
8943 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8944 mono_method_get_marshal_info (invoke, mspecs);
8946 sig = mono_method_signature (method);
8948 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8950 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8951 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8953 /* we copy the signature, so that we can modify it */
8955 /* Need to free this later */
8956 csig = mono_metadata_signature_dup (invoke_sig);
8958 csig = signature_dup (method->klass->image, invoke_sig);
8967 m.image = method->klass->image;
8969 mono_marshal_set_callconv_from_modopt (invoke, csig);
8971 /* Handle the UnmanagedFunctionPointerAttribute */
8972 if (!UnmanagedFunctionPointerAttribute)
8973 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8975 /* The attribute is only available in Net 2.0 */
8976 if (UnmanagedFunctionPointerAttribute) {
8977 MonoCustomAttrInfo *cinfo;
8978 MonoCustomAttrEntry *attr;
8981 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8982 * contents of the attribute without constructing it, as that might not be
8983 * possible when running in cross-compiling mode.
8985 cinfo = mono_custom_attrs_from_class (delegate_klass);
8988 for (i = 0; i < cinfo->num_attrs; ++i) {
8989 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8990 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8991 attr = &cinfo->attrs [i];
8997 MonoArray *typed_args, *named_args;
8998 CattrNamedArg *arginfo;
9002 MonoBoolean set_last_error = 0;
9003 MonoBoolean best_fit_mapping = 0;
9004 MonoBoolean throw_on_unmappable = 0;
9006 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
9008 g_assert (mono_array_length (typed_args) == 1);
9011 o = mono_array_get (typed_args, MonoObject*, 0);
9012 call_conv = *(gint32*)mono_object_unbox (o);
9015 for (i = 0; i < mono_array_length (named_args); ++i) {
9016 CattrNamedArg *narg = &arginfo [i];
9018 o = mono_array_get (named_args, MonoObject*, i);
9020 g_assert (narg->field);
9021 if (!strcmp (narg->field->name, "CharSet")) {
9022 charset = *(gint32*)mono_object_unbox (o);
9023 } else if (!strcmp (narg->field->name, "SetLastError")) {
9024 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
9025 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
9026 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
9027 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
9028 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
9030 g_assert_not_reached ();
9036 memset (&piinfo, 0, sizeof (piinfo));
9038 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
9040 csig->call_convention = call_conv - 1;
9043 if (cinfo && !cinfo->cached)
9044 mono_custom_attrs_free (cinfo);
9047 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
9049 if (!target_handle) {
9052 res = mono_mb_create_and_cache (cache, method,
9053 mb, csig, sig->param_count + 16);
9054 // FIXME: Associate it with the method+delegate_klass pair
9055 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9056 info->d.native_to_managed.method = method;
9057 info->d.native_to_managed.klass = delegate_klass;
9058 mono_marshal_set_wrapper_info (res, info);
9061 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9065 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9067 mono_metadata_free_marshal_spec (mspecs [i]);
9070 /* code_for (res); */
9076 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9079 MonoMethodSignature *sig;
9080 MonoMethodBuilder *mb;
9085 method = mono_get_method (image, token, NULL);
9088 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9089 MonoMethodSignature *csig;
9090 MonoMarshalSpec **mspecs;
9091 EmitMarshalContext m;
9093 sig = mono_method_signature (method);
9094 g_assert (!sig->hasthis);
9096 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9097 mono_method_get_marshal_info (method, mspecs);
9099 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9100 csig = signature_dup (image, sig);
9111 mono_marshal_set_callconv_from_modopt (method, csig);
9113 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9115 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9118 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9121 for (i = sig->param_count; i >= 0; i--)
9123 mono_metadata_free_marshal_spec (mspecs [i]);
9126 return mono_compile_method (method);
9129 sig = mono_method_signature (method);
9130 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9132 param_count = sig->param_count + sig->hasthis;
9133 for (i = 0; i < param_count; i++)
9134 mono_mb_emit_ldarg (mb, i);
9136 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9137 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9139 mono_mb_emit_op (mb, CEE_CALL, method);
9140 mono_mb_emit_byte (mb, CEE_RET);
9143 method = mono_mb_create_method (mb, sig, param_count);
9146 return mono_compile_method (method);
9149 static MonoReflectionType *
9150 type_from_handle (MonoType *handle)
9152 MonoDomain *domain = mono_domain_get ();
9153 MonoClass *klass = mono_class_from_mono_type (handle);
9155 MONO_ARCH_SAVE_REGS;
9157 mono_class_init (klass);
9158 return mono_type_get_object (domain, handle);
9162 * This does the equivalent of mono_object_castclass_with_cache.
9163 * The wrapper info for the wrapper is a WrapperInfo structure.
9166 mono_marshal_get_castclass_with_cache (void)
9168 static MonoMethod *cached;
9170 MonoMethodBuilder *mb;
9171 MonoMethodSignature *sig;
9172 int return_null_pos, cache_miss_pos, invalid_cast_pos;
9178 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9179 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9180 sig->params [0] = &mono_defaults.object_class->byval_arg;
9181 sig->params [1] = &mono_defaults.int_class->byval_arg;
9182 sig->params [2] = &mono_defaults.int_class->byval_arg;
9183 sig->ret = &mono_defaults.object_class->byval_arg;
9186 /* allocate local 0 (pointer) obj_vtable */
9187 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9190 mono_mb_emit_ldarg (mb, 0);
9191 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9193 /*obj_vtable = obj->vtable;*/
9194 mono_mb_emit_ldarg (mb, 0);
9195 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9196 mono_mb_emit_byte (mb, CEE_LDIND_I);
9197 mono_mb_emit_stloc (mb, 0);
9200 mono_mb_emit_ldarg (mb, 2);
9201 mono_mb_emit_byte (mb, CEE_LDIND_I);
9202 mono_mb_emit_ldloc (mb, 0);
9204 /*if (*cache == obj_vtable)*/
9205 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9208 mono_mb_emit_ldarg (mb, 0);
9209 mono_mb_emit_byte (mb, CEE_RET);
9211 mono_mb_patch_branch (mb, cache_miss_pos);
9212 /*if (mono_object_isinst (obj, klass)) */
9213 mono_mb_emit_ldarg (mb, 0);
9214 mono_mb_emit_ldarg (mb, 1);
9215 mono_mb_emit_icall (mb, mono_object_isinst);
9216 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9218 /**cache = obj_vtable;*/
9219 mono_mb_emit_ldarg (mb, 2);
9220 mono_mb_emit_ldloc (mb, 0);
9221 mono_mb_emit_byte (mb, CEE_STIND_I);
9224 mono_mb_emit_ldarg (mb, 0);
9225 mono_mb_emit_byte (mb, CEE_RET);
9228 mono_mb_patch_branch (mb, invalid_cast_pos);
9229 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9232 mono_mb_patch_branch (mb, return_null_pos);
9233 mono_mb_emit_byte (mb, CEE_LDNULL);
9234 mono_mb_emit_byte (mb, CEE_RET);
9236 res = mono_mb_create_method (mb, sig, 8);
9237 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9238 mono_marshal_set_wrapper_info (res, info);
9241 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9242 mono_free_method (res);
9243 mono_metadata_free_method_signature (sig);
9251 * This does the equivalent of mono_object_isinst_with_cache.
9252 * The wrapper info for the wrapper is a WrapperInfo structure.
9255 mono_marshal_get_isinst_with_cache (void)
9257 static MonoMethod *cached;
9259 MonoMethodBuilder *mb;
9260 MonoMethodSignature *sig;
9261 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9267 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9268 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9269 sig->params [0] = &mono_defaults.object_class->byval_arg;
9270 sig->params [1] = &mono_defaults.int_class->byval_arg;
9271 sig->params [2] = &mono_defaults.int_class->byval_arg;
9272 sig->ret = &mono_defaults.object_class->byval_arg;
9275 /* allocate local 0 (pointer) obj_vtable */
9276 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9277 /* allocate local 1 (pointer) cached_vtable */
9278 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9281 mono_mb_emit_ldarg (mb, 0);
9282 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9284 /*obj_vtable = obj->vtable;*/
9285 mono_mb_emit_ldarg (mb, 0);
9286 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9287 mono_mb_emit_byte (mb, CEE_LDIND_I);
9288 mono_mb_emit_stloc (mb, 0);
9290 /* cached_vtable = *cache*/
9291 mono_mb_emit_ldarg (mb, 2);
9292 mono_mb_emit_byte (mb, CEE_LDIND_I);
9293 mono_mb_emit_stloc (mb, 1);
9295 mono_mb_emit_ldloc (mb, 1);
9296 mono_mb_emit_byte (mb, CEE_LDC_I4);
9297 mono_mb_emit_i4 (mb, ~0x1);
9298 mono_mb_emit_byte (mb, CEE_CONV_U);
9299 mono_mb_emit_byte (mb, CEE_AND);
9300 mono_mb_emit_ldloc (mb, 0);
9301 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9302 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9304 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9305 mono_mb_emit_ldloc (mb, 1);
9306 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9307 mono_mb_emit_byte (mb, CEE_CONV_U);
9308 mono_mb_emit_byte (mb, CEE_AND);
9309 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9312 mono_mb_emit_ldarg (mb, 0);
9313 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9316 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9317 mono_mb_emit_byte (mb, CEE_LDNULL);
9319 mono_mb_patch_branch (mb, cache_hit_pos);
9320 mono_mb_emit_byte (mb, CEE_RET);
9322 mono_mb_patch_branch (mb, cache_miss_pos);
9323 /*if (mono_object_isinst (obj, klass)) */
9324 mono_mb_emit_ldarg (mb, 0);
9325 mono_mb_emit_ldarg (mb, 1);
9326 mono_mb_emit_icall (mb, mono_object_isinst);
9327 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9329 /**cache = obj_vtable;*/
9330 mono_mb_emit_ldarg (mb, 2);
9331 mono_mb_emit_ldloc (mb, 0);
9332 mono_mb_emit_byte (mb, CEE_STIND_I);
9335 mono_mb_emit_ldarg (mb, 0);
9336 mono_mb_emit_byte (mb, CEE_RET);
9339 mono_mb_patch_branch (mb, not_an_instance_pos);
9340 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9341 mono_mb_emit_ldarg (mb, 2);
9342 /*obj_vtable | 0x1*/
9343 mono_mb_emit_ldloc (mb, 0);
9344 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9345 mono_mb_emit_byte (mb, CEE_CONV_U);
9346 mono_mb_emit_byte (mb, CEE_OR);
9349 mono_mb_emit_byte (mb, CEE_STIND_I);
9352 mono_mb_patch_branch (mb, return_null_pos);
9353 mono_mb_emit_byte (mb, CEE_LDNULL);
9354 mono_mb_emit_byte (mb, CEE_RET);
9356 res = mono_mb_create_method (mb, sig, 8);
9357 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9358 mono_marshal_set_wrapper_info (res, info);
9361 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9362 mono_free_method (res);
9363 mono_metadata_free_method_signature (sig);
9371 * mono_marshal_get_isinst:
9372 * @klass: the type of the field
9374 * This method generates a function which can be used to check if an object is
9375 * an instance of the given type, icluding the case where the object is a proxy.
9376 * The generated function has the following signature:
9377 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9380 mono_marshal_get_isinst (MonoClass *klass)
9382 static MonoMethodSignature *isint_sig = NULL;
9385 int pos_was_ok, pos_failed, pos_end, pos_end2;
9387 MonoMethodBuilder *mb;
9389 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9390 if ((res = mono_marshal_find_in_cache (cache, klass)))
9394 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9395 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9396 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9397 isint_sig->pinvoke = 0;
9400 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9401 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9404 mb->method->save_lmf = 1;
9406 /* check if the object is a proxy that needs special cast */
9407 mono_mb_emit_ldarg (mb, 0);
9408 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9409 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9411 /* The result of MONO_ISINST can be:
9412 0) the type check succeeded
9413 1) the type check did not succeed
9414 2) a CanCastTo call is needed */
9416 mono_mb_emit_byte (mb, CEE_DUP);
9417 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9419 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9420 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9422 /* get the real proxy from the transparent proxy*/
9424 mono_mb_emit_ldarg (mb, 0);
9425 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9426 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9430 mono_mb_patch_branch (mb, pos_failed);
9431 mono_mb_emit_byte (mb, CEE_LDNULL);
9432 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9436 mono_mb_patch_branch (mb, pos_was_ok);
9437 mono_mb_emit_byte (mb, CEE_POP);
9438 mono_mb_emit_ldarg (mb, 0);
9442 mono_mb_patch_branch (mb, pos_end);
9443 mono_mb_patch_branch (mb, pos_end2);
9444 mono_mb_emit_byte (mb, CEE_RET);
9446 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9453 * mono_marshal_get_castclass:
9454 * @klass: the type of the field
9456 * This method generates a function which can be used to cast an object to
9457 * an instance of the given type, icluding the case where the object is a proxy.
9458 * The generated function has the following signature:
9459 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9460 * The wrapper info for the wrapper is a WrapperInfo structure.
9463 mono_marshal_get_castclass (MonoClass *klass)
9465 static MonoMethodSignature *castclass_sig = NULL;
9468 int pos_was_ok, pos_was_ok2;
9470 MonoMethodBuilder *mb;
9473 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9474 if ((res = mono_marshal_find_in_cache (cache, klass)))
9477 if (!castclass_sig) {
9478 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9479 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9480 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9481 castclass_sig->pinvoke = 0;
9484 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9485 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9488 mb->method->save_lmf = 1;
9490 /* check if the object is a proxy that needs special cast */
9491 mono_mb_emit_ldarg (mb, 0);
9492 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9493 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9495 /* The result of MONO_ISINST can be:
9496 0) the cast is valid
9497 1) cast of unknown proxy type
9498 or an exception if the cast is is invalid
9501 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9503 /* get the real proxy from the transparent proxy*/
9505 mono_mb_emit_ldarg (mb, 0);
9506 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9507 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9510 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9513 mono_mb_patch_branch (mb, pos_was_ok);
9514 mono_mb_patch_branch (mb, pos_was_ok2);
9515 mono_mb_emit_ldarg (mb, 0);
9518 mono_mb_emit_byte (mb, CEE_RET);
9520 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9523 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9524 mono_marshal_set_wrapper_info (res, info);
9530 mono_marshal_get_proxy_cancast (MonoClass *klass)
9532 static MonoMethodSignature *isint_sig = NULL;
9535 int pos_failed, pos_end;
9536 char *name, *klass_name;
9537 MonoMethod *can_cast_to;
9538 MonoMethodDesc *desc;
9539 MonoMethodBuilder *mb;
9541 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9542 if ((res = mono_marshal_find_in_cache (cache, klass)))
9546 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9547 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9548 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9549 isint_sig->pinvoke = 0;
9552 klass_name = mono_type_full_name (&klass->byval_arg);
9553 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9554 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9555 g_free (klass_name);
9558 mb->method->save_lmf = 1;
9560 /* get the real proxy from the transparent proxy*/
9561 mono_mb_emit_ldarg (mb, 0);
9562 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9563 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9565 /* get the reflection type from the type handle */
9566 mono_mb_emit_ptr (mb, &klass->byval_arg);
9567 mono_mb_emit_icall (mb, type_from_handle);
9569 mono_mb_emit_ldarg (mb, 0);
9571 /* make the call to CanCastTo (type, ob) */
9572 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9573 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9574 g_assert (can_cast_to);
9575 mono_method_desc_free (desc);
9576 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9578 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9580 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9581 mono_mb_emit_ptr (mb, &klass->byval_arg);
9582 mono_mb_emit_icall (mb, type_from_handle);
9583 mono_mb_emit_ldarg (mb, 0);
9585 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9586 emit_thread_interrupt_checkpoint (mb);
9588 mono_mb_emit_ldarg (mb, 0);
9589 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9593 mono_mb_patch_branch (mb, pos_failed);
9594 mono_mb_emit_byte (mb, CEE_LDNULL);
9598 mono_mb_patch_branch (mb, pos_end);
9599 mono_mb_emit_byte (mb, CEE_RET);
9601 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9608 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9611 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9612 klass = mono_class_from_mono_type (rtype->type);
9613 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9617 * mono_marshal_get_struct_to_ptr:
9620 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9621 * The wrapper info for the wrapper is a WrapperInfo structure.
9624 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9626 MonoMethodBuilder *mb;
9627 static MonoMethod *stoptr = NULL;
9631 g_assert (klass != NULL);
9633 mono_marshal_load_type_info (klass);
9635 if (klass->marshal_info->str_to_ptr)
9636 return klass->marshal_info->str_to_ptr;
9639 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9642 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9644 if (klass->blittable) {
9645 mono_mb_emit_byte (mb, CEE_LDARG_1);
9646 mono_mb_emit_byte (mb, CEE_LDARG_0);
9647 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9648 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9649 mono_mb_emit_byte (mb, CEE_PREFIX1);
9650 mono_mb_emit_byte (mb, CEE_CPBLK);
9653 /* allocate local 0 (pointer) src_ptr */
9654 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9655 /* allocate local 1 (pointer) dst_ptr */
9656 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9657 /* allocate local 2 (boolean) delete_old */
9658 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9659 mono_mb_emit_byte (mb, CEE_LDARG_2);
9660 mono_mb_emit_stloc (mb, 2);
9662 /* initialize src_ptr to point to the start of object data */
9663 mono_mb_emit_byte (mb, CEE_LDARG_0);
9664 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9665 mono_mb_emit_stloc (mb, 0);
9667 /* initialize dst_ptr */
9668 mono_mb_emit_byte (mb, CEE_LDARG_1);
9669 mono_mb_emit_stloc (mb, 1);
9671 emit_struct_conv (mb, klass, FALSE);
9674 mono_mb_emit_byte (mb, CEE_RET);
9676 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9679 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9680 mono_marshal_set_wrapper_info (res, info);
9682 klass->marshal_info->str_to_ptr = res;
9687 * mono_marshal_get_ptr_to_struct:
9690 * generates IL code for PtrToStructure (IntPtr src, object structure)
9691 * The wrapper info for the wrapper is a WrapperInfo structure.
9694 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9696 MonoMethodBuilder *mb;
9697 static MonoMethodSignature *ptostr = NULL;
9701 g_assert (klass != NULL);
9703 mono_marshal_load_type_info (klass);
9705 if (klass->marshal_info->ptr_to_str)
9706 return klass->marshal_info->ptr_to_str;
9709 MonoMethodSignature *sig;
9711 /* Create the signature corresponding to
9712 static void PtrToStructure (IntPtr ptr, object structure);
9713 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9714 sig = mono_create_icall_signature ("void ptr object");
9715 sig = signature_dup (mono_defaults.corlib, sig);
9717 mono_memory_barrier ();
9721 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9723 if (klass->blittable) {
9724 mono_mb_emit_byte (mb, CEE_LDARG_1);
9725 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9726 mono_mb_emit_byte (mb, CEE_LDARG_0);
9727 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9728 mono_mb_emit_byte (mb, CEE_PREFIX1);
9729 mono_mb_emit_byte (mb, CEE_CPBLK);
9732 /* allocate local 0 (pointer) src_ptr */
9733 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9734 /* allocate local 1 (pointer) dst_ptr */
9735 mono_mb_add_local (mb, &klass->this_arg);
9737 /* initialize src_ptr to point to the start of object data */
9738 mono_mb_emit_byte (mb, CEE_LDARG_0);
9739 mono_mb_emit_stloc (mb, 0);
9741 /* initialize dst_ptr */
9742 mono_mb_emit_byte (mb, CEE_LDARG_1);
9743 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9744 mono_mb_emit_stloc (mb, 1);
9746 emit_struct_conv (mb, klass, TRUE);
9749 mono_mb_emit_byte (mb, CEE_RET);
9751 res = mono_mb_create_method (mb, ptostr, 0);
9754 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9755 mono_marshal_set_wrapper_info (res, info);
9757 klass->marshal_info->ptr_to_str = res;
9762 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9763 * This is used to avoid infinite recursion since it is hard to determine where to
9764 * replace a method with its synchronized wrapper, and where not.
9765 * The runtime should execute METHOD instead of the wrapper.
9766 * The wrapper info for the wrapper is a WrapperInfo structure.
9769 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9771 MonoMethodBuilder *mb;
9773 MonoMethodSignature *sig;
9776 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9777 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9778 mono_mb_emit_byte (mb, CEE_RET);
9779 sig = signature_dup (method->klass->image, mono_method_signature (method));
9780 res = mono_mb_create_method (mb, sig, 0);
9782 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9783 info->d.synchronized_inner.method = method;
9784 mono_marshal_set_wrapper_info (res, info);
9789 * generates IL code for the synchronized wrapper: the generated method
9790 * calls METHOD while locking 'this' or the parent type.
9793 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9795 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9796 MonoMethodSignature *sig;
9797 MonoExceptionClause *clause;
9798 MonoMethodBuilder *mb;
9801 int i, pos, this_local, ret_local = 0;
9805 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9808 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9809 if ((res = mono_marshal_find_in_cache (cache, method)))
9812 sig = signature_dup (method->klass->image, mono_method_signature (method));
9815 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9818 if (!MONO_TYPE_IS_VOID (sig->ret))
9819 ret_local = mono_mb_add_local (mb, sig->ret);
9821 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9822 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9823 /* This will throw the type load exception when the wrapper is compiled */
9824 mono_mb_emit_byte (mb, CEE_LDNULL);
9825 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9826 mono_mb_emit_byte (mb, CEE_POP);
9828 if (!MONO_TYPE_IS_VOID (sig->ret))
9829 mono_mb_emit_ldloc (mb, ret_local);
9830 mono_mb_emit_byte (mb, CEE_RET);
9832 res = mono_mb_create_and_cache (cache, method,
9833 mb, sig, sig->param_count + 16);
9840 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9842 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9843 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9845 mono_loader_lock ();
9847 if (!enter_method) {
9848 MonoMethodDesc *desc;
9850 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9851 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9852 g_assert (enter_method);
9853 mono_method_desc_free (desc);
9855 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9856 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9857 g_assert (exit_method);
9858 mono_method_desc_free (desc);
9860 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9861 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9862 g_assert (gettypefromhandle_method);
9863 mono_method_desc_free (desc);
9866 mono_loader_unlock ();
9868 /* Push this or the type object */
9869 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9870 /* We have special handling for this in the JIT */
9871 int index = mono_mb_add_data (mb, method->klass);
9872 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9873 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9874 mono_mb_emit_i4 (mb, index);
9876 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9879 mono_mb_emit_ldarg (mb, 0);
9880 mono_mb_emit_stloc (mb, this_local);
9882 /* Call Monitor::Enter() */
9883 mono_mb_emit_ldloc (mb, this_local);
9884 mono_mb_emit_managed_call (mb, enter_method, NULL);
9886 clause->try_offset = mono_mb_get_label (mb);
9888 /* Call the method */
9890 mono_mb_emit_ldarg (mb, 0);
9891 for (i = 0; i < sig->param_count; i++)
9892 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9894 mono_mb_emit_managed_call (mb, method, NULL);
9896 if (!MONO_TYPE_IS_VOID (sig->ret))
9897 mono_mb_emit_stloc (mb, ret_local);
9899 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9901 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9902 clause->handler_offset = mono_mb_get_label (mb);
9904 /* Call Monitor::Exit() */
9905 mono_mb_emit_ldloc (mb, this_local);
9906 mono_mb_emit_managed_call (mb, exit_method, NULL);
9907 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9909 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9911 mono_mb_patch_branch (mb, pos);
9912 if (!MONO_TYPE_IS_VOID (sig->ret))
9913 mono_mb_emit_ldloc (mb, ret_local);
9914 mono_mb_emit_byte (mb, CEE_RET);
9916 mono_mb_set_clauses (mb, 1, clause);
9918 res = mono_mb_create_and_cache (cache, method,
9919 mb, sig, sig->param_count + 16);
9927 * the returned method calls 'method' unboxing the this argument
9930 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9932 MonoMethodSignature *sig = mono_method_signature (method);
9934 MonoMethodBuilder *mb;
9938 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9939 if ((res = mono_marshal_find_in_cache (cache, method)))
9942 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9944 g_assert (sig->hasthis);
9946 mono_mb_emit_ldarg (mb, 0);
9947 mono_mb_emit_icon (mb, sizeof (MonoObject));
9948 mono_mb_emit_byte (mb, CEE_ADD);
9949 for (i = 0; i < sig->param_count; ++i)
9950 mono_mb_emit_ldarg (mb, i + 1);
9951 mono_mb_emit_managed_call (mb, method, NULL);
9952 mono_mb_emit_byte (mb, CEE_RET);
9954 res = mono_mb_create_and_cache (cache, method,
9955 mb, sig, sig->param_count + 16);
9958 /* code_for (res); */
9964 STELEMREF_OBJECT, /*no check at all*/
9965 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9966 STELEMREF_CLASS, /*only the klass->parents check*/
9967 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9968 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9969 STELEMREF_KIND_COUNT
9972 static const char *strelemref_wrapper_name[] = {
9973 "object", "sealed_class", "class", "interface", "complex"
9977 is_monomorphic_array (MonoClass *klass)
9979 MonoClass *element_class;
9980 if (klass->rank != 1)
9983 element_class = klass->element_class;
9984 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9988 get_virtual_stelemref_kind (MonoClass *element_class)
9990 if (element_class == mono_defaults.object_class)
9991 return STELEMREF_OBJECT;
9992 if (is_monomorphic_array (element_class))
9993 return STELEMREF_SEALED_CLASS;
9994 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9995 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9996 #ifdef COMPRESSED_INTERFACE_BITMAP
9997 return STELEMREF_COMPLEX;
9999 return STELEMREF_INTERFACE;
10001 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
10002 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
10003 return STELEMREF_COMPLEX;
10004 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
10005 return STELEMREF_SEALED_CLASS;
10006 return STELEMREF_CLASS;
10010 load_array_element_address (MonoMethodBuilder *mb)
10012 mono_mb_emit_ldarg (mb, 0);
10013 mono_mb_emit_ldarg (mb, 1);
10014 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10018 load_array_class (MonoMethodBuilder *mb, int aklass)
10020 mono_mb_emit_ldarg (mb, 0);
10021 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10022 mono_mb_emit_byte (mb, CEE_LDIND_I);
10023 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10024 mono_mb_emit_byte (mb, CEE_LDIND_I);
10025 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10026 mono_mb_emit_byte (mb, CEE_LDIND_I);
10027 mono_mb_emit_stloc (mb, aklass);
10031 load_value_class (MonoMethodBuilder *mb, int vklass)
10033 mono_mb_emit_ldarg (mb, 2);
10034 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10035 mono_mb_emit_byte (mb, CEE_LDIND_I);
10036 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10037 mono_mb_emit_byte (mb, CEE_LDIND_I);
10038 mono_mb_emit_stloc (mb, vklass);
10043 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
10045 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
10046 printf ("slow vstore of %s\n", name);
10052 * The wrapper info for the wrapper is a WrapperInfo structure.
10055 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
10056 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
10057 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
10058 * - Add a case for arrays of arrays.
10061 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10063 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
10064 static MonoMethodSignature *signature;
10065 MonoMethodBuilder *mb;
10069 const char *param_names [16];
10070 guint32 b1, b2, b3;
10071 int aklass, vklass, vtable, uiid;
10072 int array_slot_addr;
10075 g_assert (array_class->rank == 1);
10076 kind = get_virtual_stelemref_kind (array_class->element_class);
10078 if (cached_methods [kind])
10079 return cached_methods [kind];
10081 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
10082 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
10085 param_names [0] = "index";
10086 param_names [1] = "value";
10087 mono_mb_set_param_names (mb, param_names);
10090 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10092 /* void this::stelemref (size_t idx, void* value) */
10093 sig->ret = &mono_defaults.void_class->byval_arg;
10094 sig->hasthis = TRUE;
10095 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10096 sig->params [1] = &mono_defaults.object_class->byval_arg;
10100 /*For now simply call plain old stelemref*/
10102 case STELEMREF_OBJECT:
10103 /* ldelema (implicit bound check) */
10104 load_array_element_address (mb);
10106 mono_mb_emit_ldarg (mb, 2);
10107 mono_mb_emit_byte (mb, CEE_STIND_REF);
10108 mono_mb_emit_byte (mb, CEE_RET);
10111 case STELEMREF_COMPLEX:
10113 <ldelema (bound check)>
10116 if (!mono_object_isinst (value, aklass))
10120 *array_slot_addr = value;
10123 throw new ArrayTypeMismatchException ();
10126 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10127 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10131 /*Use this to debug/record stores that are going thru the slow path*/
10132 MonoMethodSignature *csig;
10133 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10134 csig->ret = &mono_defaults.void_class->byval_arg;
10135 csig->params [0] = &mono_defaults.object_class->byval_arg;
10136 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10137 csig->params [2] = &mono_defaults.object_class->byval_arg;
10138 mono_mb_emit_ldarg (mb, 0);
10139 mono_mb_emit_ldarg (mb, 1);
10140 mono_mb_emit_ldarg (mb, 2);
10141 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
10145 /* ldelema (implicit bound check) */
10146 load_array_element_address (mb);
10147 mono_mb_emit_stloc (mb, array_slot_addr);
10149 /* if (!value) goto do_store */
10150 mono_mb_emit_ldarg (mb, 2);
10151 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10153 /* aklass = array->vtable->klass->element_class */
10154 load_array_class (mb, aklass);
10156 /*if (mono_object_isinst (value, aklass)) */
10157 mono_mb_emit_ldarg (mb, 2);
10158 mono_mb_emit_ldloc (mb, aklass);
10159 mono_mb_emit_icall (mb, mono_object_isinst);
10160 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10163 mono_mb_patch_branch (mb, b1);
10164 mono_mb_emit_ldloc (mb, array_slot_addr);
10165 mono_mb_emit_ldarg (mb, 2);
10166 mono_mb_emit_byte (mb, CEE_STIND_REF);
10167 mono_mb_emit_byte (mb, CEE_RET);
10169 /* do_exception: */
10170 mono_mb_patch_branch (mb, b2);
10172 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10175 case STELEMREF_SEALED_CLASS:
10177 <ldelema (bound check)>
10181 aklass = array->vtable->klass->element_class;
10182 vklass = value->vtable->klass;
10184 if (vklass != aklass)
10188 *array_slot_addr = value;
10191 throw new ArrayTypeMismatchException ();
10193 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10194 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10195 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10198 /* ldelema (implicit bound check) */
10199 load_array_element_address (mb);
10200 mono_mb_emit_stloc (mb, array_slot_addr);
10202 /* if (!value) goto do_store */
10203 mono_mb_emit_ldarg (mb, 2);
10204 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10206 /* aklass = array->vtable->klass->element_class */
10207 load_array_class (mb, aklass);
10209 /* vklass = value->vtable->klass */
10210 load_value_class (mb, vklass);
10212 /*if (vklass != aklass) goto do_exception; */
10213 mono_mb_emit_ldloc (mb, aklass);
10214 mono_mb_emit_ldloc (mb, vklass);
10215 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10218 mono_mb_patch_branch (mb, b1);
10219 mono_mb_emit_ldloc (mb, array_slot_addr);
10220 mono_mb_emit_ldarg (mb, 2);
10221 mono_mb_emit_byte (mb, CEE_STIND_REF);
10222 mono_mb_emit_byte (mb, CEE_RET);
10224 /* do_exception: */
10225 mono_mb_patch_branch (mb, b2);
10226 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10229 case STELEMREF_CLASS:
10232 <ldelema (bound check)>
10236 aklass = array->vtable->klass->element_class;
10237 vklass = value->vtable->klass;
10239 if (vklass->idepth < aklass->idepth)
10242 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10246 *array_slot_addr = value;
10250 throw new ArrayTypeMismatchException ();
10252 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10253 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10254 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10256 /* ldelema (implicit bound check) */
10257 load_array_element_address (mb);
10258 mono_mb_emit_stloc (mb, array_slot_addr);
10260 /* if (!value) goto do_store */
10261 mono_mb_emit_ldarg (mb, 2);
10262 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10264 /* aklass = array->vtable->klass->element_class */
10265 load_array_class (mb, aklass);
10267 /* vklass = value->vtable->klass */
10268 load_value_class (mb, vklass);
10270 /*if (mono_object_isinst (value, aklass)) */
10271 mono_mb_emit_ldarg (mb, 2);
10272 mono_mb_emit_ldloc (mb, aklass);
10273 mono_mb_emit_icall (mb, mono_object_isinst);
10274 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10276 /* if (vklass->idepth < aklass->idepth) goto failue */
10277 mono_mb_emit_ldloc (mb, vklass);
10278 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10279 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10281 mono_mb_emit_ldloc (mb, aklass);
10282 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10283 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10285 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10287 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10288 mono_mb_emit_ldloc (mb, vklass);
10289 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10290 mono_mb_emit_byte (mb, CEE_LDIND_I);
10292 mono_mb_emit_ldloc (mb, aklass);
10293 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10294 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10295 mono_mb_emit_icon (mb, 1);
10296 mono_mb_emit_byte (mb, CEE_SUB);
10297 mono_mb_emit_icon (mb, sizeof (void*));
10298 mono_mb_emit_byte (mb, CEE_MUL);
10299 mono_mb_emit_byte (mb, CEE_ADD);
10300 mono_mb_emit_byte (mb, CEE_LDIND_I);
10302 mono_mb_emit_ldloc (mb, aklass);
10303 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10306 mono_mb_patch_branch (mb, b1);
10307 mono_mb_emit_ldloc (mb, array_slot_addr);
10308 mono_mb_emit_ldarg (mb, 2);
10309 mono_mb_emit_byte (mb, CEE_STIND_REF);
10310 mono_mb_emit_byte (mb, CEE_RET);
10312 /* do_exception: */
10313 mono_mb_patch_branch (mb, b2);
10314 mono_mb_patch_branch (mb, b3);
10316 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10319 case STELEMREF_INTERFACE:
10326 klass = array->obj.vtable->klass->element_class;
10327 vt = value->vtable;
10328 uiid = klass->interface_id;
10329 if (uiid > vt->max_interface_id)
10331 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10334 mono_array_setref (array, index, value);
10337 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10339 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10340 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10341 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10342 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10344 /* ldelema (implicit bound check) */
10345 load_array_element_address (mb);
10346 mono_mb_emit_stloc (mb, array_slot_addr);
10348 /* if (!value) goto do_store */
10349 mono_mb_emit_ldarg (mb, 2);
10350 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10352 /* klass = array->vtable->klass->element_class */
10353 load_array_class (mb, aklass);
10355 /* vt = value->vtable */
10356 mono_mb_emit_ldarg (mb, 2);
10357 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10358 mono_mb_emit_byte (mb, CEE_LDIND_I);
10359 mono_mb_emit_stloc (mb, vtable);
10361 /* uiid = klass->interface_id; */
10362 mono_mb_emit_ldloc (mb, aklass);
10363 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10364 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10365 mono_mb_emit_stloc (mb, uiid);
10367 /*if (uiid > vt->max_interface_id)*/
10368 mono_mb_emit_ldloc (mb, uiid);
10369 mono_mb_emit_ldloc (mb, vtable);
10370 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10371 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10372 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10374 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10376 /*vt->interface_bitmap*/
10377 mono_mb_emit_ldloc (mb, vtable);
10378 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10379 mono_mb_emit_byte (mb, CEE_LDIND_I);
10382 mono_mb_emit_ldloc (mb, uiid);
10383 mono_mb_emit_icon (mb, 3);
10384 mono_mb_emit_byte (mb, CEE_SHR_UN);
10386 /*vt->interface_bitmap [(uiid) >> 3]*/
10387 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10388 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10390 /*(1 << ((uiid)&7)))*/
10391 mono_mb_emit_icon (mb, 1);
10392 mono_mb_emit_ldloc (mb, uiid);
10393 mono_mb_emit_icon (mb, 7);
10394 mono_mb_emit_byte (mb, CEE_AND);
10395 mono_mb_emit_byte (mb, CEE_SHL);
10397 /*bitwise and the whole thing*/
10398 mono_mb_emit_byte (mb, CEE_AND);
10399 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10402 mono_mb_patch_branch (mb, b1);
10403 mono_mb_emit_ldloc (mb, array_slot_addr);
10404 mono_mb_emit_ldarg (mb, 2);
10405 mono_mb_emit_byte (mb, CEE_STIND_REF);
10406 mono_mb_emit_byte (mb, CEE_RET);
10408 /* do_exception: */
10409 mono_mb_patch_branch (mb, b2);
10410 mono_mb_patch_branch (mb, b3);
10411 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10415 mono_mb_emit_ldarg (mb, 0);
10416 mono_mb_emit_ldarg (mb, 1);
10417 mono_mb_emit_ldarg (mb, 2);
10418 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10419 mono_mb_emit_byte (mb, CEE_RET);
10423 res = mono_mb_create_method (mb, signature, 4);
10424 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10426 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10427 info->d.virtual_stelemref.kind = kind;
10428 mono_marshal_set_wrapper_info (res, info);
10430 mono_marshal_lock ();
10431 if (!cached_methods [kind]) {
10432 cached_methods [kind] = res;
10433 mono_marshal_unlock ();
10435 mono_marshal_unlock ();
10436 mono_free_method (res);
10440 return cached_methods [kind];
10444 * The wrapper info for the wrapper is a WrapperInfo structure.
10447 mono_marshal_get_stelemref ()
10449 static MonoMethod* ret = NULL;
10450 MonoMethodSignature *sig;
10451 MonoMethodBuilder *mb;
10454 guint32 b1, b2, b3, b4;
10456 int aklass, vklass;
10457 int array_slot_addr;
10462 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10465 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10467 /* void stelemref (void* array, int idx, void* value) */
10468 sig->ret = &mono_defaults.void_class->byval_arg;
10469 sig->params [0] = &mono_defaults.object_class->byval_arg;
10470 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10471 sig->params [2] = &mono_defaults.object_class->byval_arg;
10473 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10474 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10475 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10479 <ldelema (bound check)>
10483 aklass = array->vtable->klass->element_class;
10484 vklass = value->vtable->klass;
10486 if (vklass->idepth < aklass->idepth)
10489 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10493 *array_slot_addr = value;
10497 if (mono_object_isinst (value, aklass))
10500 throw new ArrayTypeMismatchException ();
10503 /* ldelema (implicit bound check) */
10504 mono_mb_emit_ldarg (mb, 0);
10505 mono_mb_emit_ldarg (mb, 1);
10506 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10507 mono_mb_emit_stloc (mb, array_slot_addr);
10509 /* if (!value) goto do_store */
10510 mono_mb_emit_ldarg (mb, 2);
10511 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10513 /* aklass = array->vtable->klass->element_class */
10514 mono_mb_emit_ldarg (mb, 0);
10515 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10516 mono_mb_emit_byte (mb, CEE_LDIND_I);
10517 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10518 mono_mb_emit_byte (mb, CEE_LDIND_I);
10519 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10520 mono_mb_emit_byte (mb, CEE_LDIND_I);
10521 mono_mb_emit_stloc (mb, aklass);
10523 /* vklass = value->vtable->klass */
10524 mono_mb_emit_ldarg (mb, 2);
10525 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10526 mono_mb_emit_byte (mb, CEE_LDIND_I);
10527 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10528 mono_mb_emit_byte (mb, CEE_LDIND_I);
10529 mono_mb_emit_stloc (mb, vklass);
10531 /* if (vklass->idepth < aklass->idepth) goto failue */
10532 mono_mb_emit_ldloc (mb, vklass);
10533 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10534 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10536 mono_mb_emit_ldloc (mb, aklass);
10537 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10538 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10540 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10542 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10543 mono_mb_emit_ldloc (mb, vklass);
10544 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10545 mono_mb_emit_byte (mb, CEE_LDIND_I);
10547 mono_mb_emit_ldloc (mb, aklass);
10548 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10549 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10550 mono_mb_emit_icon (mb, 1);
10551 mono_mb_emit_byte (mb, CEE_SUB);
10552 mono_mb_emit_icon (mb, sizeof (void*));
10553 mono_mb_emit_byte (mb, CEE_MUL);
10554 mono_mb_emit_byte (mb, CEE_ADD);
10555 mono_mb_emit_byte (mb, CEE_LDIND_I);
10557 mono_mb_emit_ldloc (mb, aklass);
10559 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10561 copy_pos = mono_mb_get_label (mb);
10563 mono_mb_patch_branch (mb, b1);
10564 mono_mb_emit_ldloc (mb, array_slot_addr);
10565 mono_mb_emit_ldarg (mb, 2);
10566 mono_mb_emit_byte (mb, CEE_STIND_REF);
10568 mono_mb_emit_byte (mb, CEE_RET);
10571 mono_mb_patch_branch (mb, b2);
10572 mono_mb_patch_branch (mb, b3);
10574 mono_mb_emit_ldarg (mb, 2);
10575 mono_mb_emit_ldloc (mb, aklass);
10576 mono_mb_emit_icall (mb, mono_object_isinst);
10578 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10579 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10580 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10582 mono_mb_emit_byte (mb, CEE_RET);
10583 ret = mono_mb_create_method (mb, sig, 4);
10586 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_NONE);
10587 mono_marshal_set_wrapper_info (ret, info);
10595 MonoMethod *method;
10598 /* LOCKING: vars accessed under the marshal lock */
10599 static ArrayElemAddr *elem_addr_cache = NULL;
10600 static int elem_addr_cache_size = 0;
10601 static int elem_addr_cache_next = 0;
10604 * mono_marshal_get_array_address:
10605 * @rank: rank of the array type
10606 * @elem_size: size in bytes of an element of an array.
10608 * Returns a MonoMethd that implements the code to get the address
10609 * of an element in a multi-dimenasional array of @rank dimensions.
10610 * The returned method takes an array as the first argument and then
10611 * @rank indexes for the @rank dimensions.
10614 mono_marshal_get_array_address (int rank, int elem_size)
10617 MonoMethodBuilder *mb;
10618 MonoMethodSignature *sig;
10619 int i, bounds, ind, realidx;
10620 int branch_pos, *branch_positions;
10624 mono_marshal_lock ();
10625 for (i = 0; i < elem_addr_cache_next; ++i) {
10626 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10627 ret = elem_addr_cache [i].method;
10631 mono_marshal_unlock ();
10635 branch_positions = g_new0 (int, rank);
10637 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10639 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10640 sig->ret = &mono_defaults.int_class->byval_arg;
10641 sig->params [0] = &mono_defaults.object_class->byval_arg;
10642 for (i = 0; i < rank; ++i) {
10643 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10646 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10648 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10649 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10650 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10652 /* bounds = array->bounds; */
10653 mono_mb_emit_ldarg (mb, 0);
10654 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10655 mono_mb_emit_byte (mb, CEE_LDIND_I);
10656 mono_mb_emit_stloc (mb, bounds);
10658 /* ind is the overall element index, realidx is the partial index in a single dimension */
10659 /* ind = idx0 - bounds [0].lower_bound */
10660 mono_mb_emit_ldarg (mb, 1);
10661 mono_mb_emit_ldloc (mb, bounds);
10662 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10663 mono_mb_emit_byte (mb, CEE_ADD);
10664 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10665 mono_mb_emit_byte (mb, CEE_SUB);
10666 mono_mb_emit_stloc (mb, ind);
10667 /* if (ind >= bounds [0].length) goto exeception; */
10668 mono_mb_emit_ldloc (mb, ind);
10669 mono_mb_emit_ldloc (mb, bounds);
10670 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10671 mono_mb_emit_byte (mb, CEE_ADD);
10672 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10673 /* note that we use unsigned comparison */
10674 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10676 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10677 * We could also decide to ignore the passed elem_size and get it
10678 * from the array object, to reduce the number of methods we generate:
10679 * the additional cost is 3 memory loads and a non-immediate mul.
10681 for (i = 1; i < rank; ++i) {
10682 /* realidx = idxi - bounds [i].lower_bound */
10683 mono_mb_emit_ldarg (mb, 1 + i);
10684 mono_mb_emit_ldloc (mb, bounds);
10685 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10686 mono_mb_emit_byte (mb, CEE_ADD);
10687 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10688 mono_mb_emit_byte (mb, CEE_SUB);
10689 mono_mb_emit_stloc (mb, realidx);
10690 /* if (realidx >= bounds [i].length) goto exeception; */
10691 mono_mb_emit_ldloc (mb, realidx);
10692 mono_mb_emit_ldloc (mb, bounds);
10693 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10694 mono_mb_emit_byte (mb, CEE_ADD);
10695 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10696 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10697 /* ind = ind * bounds [i].length + realidx */
10698 mono_mb_emit_ldloc (mb, ind);
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 mono_mb_emit_byte (mb, CEE_MUL);
10704 mono_mb_emit_ldloc (mb, realidx);
10705 mono_mb_emit_byte (mb, CEE_ADD);
10706 mono_mb_emit_stloc (mb, ind);
10709 /* return array->vector + ind * element_size */
10710 mono_mb_emit_ldarg (mb, 0);
10711 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10712 mono_mb_emit_ldloc (mb, ind);
10713 mono_mb_emit_icon (mb, elem_size);
10714 mono_mb_emit_byte (mb, CEE_MUL);
10715 mono_mb_emit_byte (mb, CEE_ADD);
10716 mono_mb_emit_byte (mb, CEE_RET);
10718 /* patch the branches to get here and throw */
10719 for (i = 1; i < rank; ++i) {
10720 mono_mb_patch_branch (mb, branch_positions [i]);
10722 mono_mb_patch_branch (mb, branch_pos);
10723 /* throw exception */
10724 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10726 g_free (branch_positions);
10727 ret = mono_mb_create_method (mb, sig, 4);
10730 /* cache the result */
10732 mono_marshal_lock ();
10733 for (i = 0; i < elem_addr_cache_next; ++i) {
10734 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10735 /* FIXME: free ret */
10736 ret = elem_addr_cache [i].method;
10744 if (elem_addr_cache_next >= elem_addr_cache_size) {
10745 int new_size = elem_addr_cache_size + 4;
10746 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10747 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10748 g_free (elem_addr_cache);
10749 elem_addr_cache = new_array;
10750 elem_addr_cache_size = new_size;
10752 elem_addr_cache [elem_addr_cache_next].rank = rank;
10753 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10754 elem_addr_cache [elem_addr_cache_next].method = ret;
10755 elem_addr_cache_next ++;
10757 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10758 info->d.element_addr.rank = rank;
10759 info->d.element_addr.elem_size = elem_size;
10760 mono_marshal_set_wrapper_info (ret, info);
10762 mono_marshal_unlock ();
10767 mono_marshal_alloc (gulong size)
10772 res = CoTaskMemAlloc (size);
10774 res = g_try_malloc ((gulong)size);
10776 mono_gc_out_of_memory ((gulong)size);
10782 mono_marshal_free (gpointer ptr)
10785 CoTaskMemFree (ptr);
10792 mono_marshal_free_array (gpointer *ptr, int size)
10799 for (i = 0; i < size; i++)
10805 mono_marshal_string_to_utf16 (MonoString *s)
10807 return s ? mono_string_chars (s) : NULL;
10811 mono_marshal_string_to_utf16_copy (MonoString *s)
10816 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10817 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10818 res [mono_string_length (s)] = 0;
10824 * mono_marshal_set_last_error:
10826 * This function is invoked to set the last error value from a P/Invoke call
10827 * which has SetLastError set.
10830 mono_marshal_set_last_error (void)
10833 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10835 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10840 mono_marshal_set_last_error_windows (int error)
10843 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10848 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10849 gpointer dest, gint32 length)
10854 MONO_ARCH_SAVE_REGS;
10856 MONO_CHECK_ARG_NULL (src);
10857 MONO_CHECK_ARG_NULL (dest);
10859 if (src->obj.vtable->klass->rank != 1)
10860 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10861 if (start_index < 0)
10862 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10864 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10865 if (start_index + length > mono_array_length (src))
10866 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10868 element_size = mono_array_element_size (src->obj.vtable->klass);
10870 /* no references should be involved */
10871 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10873 memcpy (dest, source_addr, length * element_size);
10877 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10878 MonoArray *dest, gint32 length)
10883 MONO_ARCH_SAVE_REGS;
10885 MONO_CHECK_ARG_NULL (src);
10886 MONO_CHECK_ARG_NULL (dest);
10888 if (dest->obj.vtable->klass->rank != 1)
10889 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10890 if (start_index < 0)
10891 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10893 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10894 if (start_index + length > mono_array_length (dest))
10895 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10897 element_size = mono_array_element_size (dest->obj.vtable->klass);
10899 /* no references should be involved */
10900 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10902 memcpy (dest_addr, src, length * element_size);
10905 #if NO_UNALIGNED_ACCESS
10906 #define RETURN_UNALIGNED(type, addr) \
10909 memcpy(&val, p + offset, sizeof(val)); \
10912 #define WRITE_UNALIGNED(type, addr, val) \
10913 memcpy(addr, &val, sizeof(type))
10915 #define RETURN_UNALIGNED(type, addr) \
10916 return *(type*)(p + offset);
10917 #define WRITE_UNALIGNED(type, addr, val) \
10918 (*(type *)(addr) = (val))
10922 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10926 MONO_ARCH_SAVE_REGS;
10928 RETURN_UNALIGNED(gpointer, p + offset);
10932 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10936 MONO_ARCH_SAVE_REGS;
10938 return *(unsigned char*)(p + offset);
10942 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10946 MONO_ARCH_SAVE_REGS;
10948 RETURN_UNALIGNED(gint16, p + offset);
10952 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10956 MONO_ARCH_SAVE_REGS;
10958 RETURN_UNALIGNED(gint32, p + offset);
10962 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10966 MONO_ARCH_SAVE_REGS;
10968 RETURN_UNALIGNED(gint64, p + offset);
10972 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10976 MONO_ARCH_SAVE_REGS;
10978 *(unsigned char*)(p + offset) = val;
10982 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10986 MONO_ARCH_SAVE_REGS;
10988 WRITE_UNALIGNED(gpointer, p + offset, val);
10992 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10996 MONO_ARCH_SAVE_REGS;
10998 WRITE_UNALIGNED(gint16, p + offset, val);
11002 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
11006 MONO_ARCH_SAVE_REGS;
11008 WRITE_UNALIGNED(gint32, p + offset, val);
11012 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
11016 MONO_ARCH_SAVE_REGS;
11018 WRITE_UNALIGNED(gint64, p + offset, val);
11022 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
11024 MONO_ARCH_SAVE_REGS;
11029 return mono_string_new (mono_domain_get (), ptr);
11033 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
11035 MONO_ARCH_SAVE_REGS;
11038 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
11039 g_assert_not_reached ();
11042 return mono_string_new_len (mono_domain_get (), ptr, len);
11047 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
11049 MonoDomain *domain = mono_domain_get ();
11053 MONO_ARCH_SAVE_REGS;
11061 return mono_string_new_utf16 (domain, ptr, len);
11065 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11067 MonoDomain *domain = mono_domain_get ();
11069 MONO_ARCH_SAVE_REGS;
11072 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
11073 g_assert_not_reached ();
11076 return mono_string_new_utf16 (domain, ptr, len);
11081 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11083 MONO_ARCH_SAVE_REGS;
11085 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11089 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
11095 MONO_ARCH_SAVE_REGS;
11097 MONO_CHECK_ARG_NULL (rtype);
11099 type = rtype->type;
11100 klass = mono_class_from_mono_type (type);
11101 if (!mono_class_init (klass))
11102 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11104 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
11106 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11108 MonoException *exc;
11110 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11111 exc = mono_get_exception_argument ("t", msg);
11113 mono_raise_exception (exc);
11117 return mono_class_native_size (klass, NULL);
11121 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11123 MonoMethod *method;
11126 MONO_ARCH_SAVE_REGS;
11128 MONO_CHECK_ARG_NULL (obj);
11129 MONO_CHECK_ARG_NULL (dst);
11131 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11135 pa [2] = &delete_old;
11137 mono_runtime_invoke (method, NULL, pa, NULL);
11141 ptr_to_structure (gpointer src, MonoObject *dst)
11143 MonoMethod *method;
11146 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11151 mono_runtime_invoke (method, NULL, pa, NULL);
11155 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11159 MONO_ARCH_SAVE_REGS;
11161 MONO_CHECK_ARG_NULL (src);
11162 MONO_CHECK_ARG_NULL (dst);
11164 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11166 if (t->type == MONO_TYPE_VALUETYPE) {
11167 MonoException *exc;
11170 tmp = g_strdup_printf ("Destination is a boxed value type.");
11171 exc = mono_get_exception_argument ("dst", tmp);
11174 mono_raise_exception (exc);
11178 ptr_to_structure (src, dst);
11182 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11185 MonoDomain *domain = mono_domain_get ();
11188 MONO_ARCH_SAVE_REGS;
11190 MONO_CHECK_ARG_NULL (src);
11191 MONO_CHECK_ARG_NULL (type);
11193 klass = mono_class_from_mono_type (type->type);
11194 if (!mono_class_init (klass))
11195 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11197 res = mono_object_new (domain, klass);
11199 ptr_to_structure (src, res);
11205 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11207 MonoMarshalType *info;
11210 int match_index = -1;
11212 MONO_ARCH_SAVE_REGS;
11214 MONO_CHECK_ARG_NULL (type);
11215 MONO_CHECK_ARG_NULL (field_name);
11217 fname = mono_string_to_utf8 (field_name);
11218 klass = mono_class_from_mono_type (type->type);
11219 if (!mono_class_init (klass))
11220 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11222 while (klass && match_index == -1) {
11223 MonoClassField* field;
11225 gpointer iter = NULL;
11226 while ((field = mono_class_get_fields (klass, &iter))) {
11227 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11229 if (!strcmp (fname, mono_field_get_name (field))) {
11236 if (match_index == -1)
11237 klass = klass->parent;
11242 if(match_index == -1) {
11243 MonoException* exc;
11246 /* Get back original class instance */
11247 klass = mono_class_from_mono_type (type->type);
11249 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11250 exc = mono_get_exception_argument ("fieldName", tmp);
11253 mono_raise_exception ((MonoException*)exc);
11256 info = mono_marshal_load_type_info (klass);
11257 return info->fields [match_index].offset;
11261 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11266 tres = mono_string_to_utf8 (string);
11270 len = strlen (tres) + 1;
11271 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11272 memcpy (ret, tres, len);
11277 return mono_string_to_utf8 (string);
11282 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11284 MONO_ARCH_SAVE_REGS;
11286 if (string == NULL)
11289 #ifdef TARGET_WIN32
11290 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11291 ((mono_string_length (string) + 1) * 2);
11293 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11295 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11296 res [mono_string_length (string)] = 0;
11302 mono_struct_delete_old (MonoClass *klass, char *ptr)
11304 MonoMarshalType *info;
11307 info = mono_marshal_load_type_info (klass);
11309 for (i = 0; i < info->num_fields; i++) {
11310 MonoMarshalNative ntype;
11311 MonoMarshalConv conv;
11312 MonoType *ftype = info->fields [i].field->type;
11315 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11318 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11319 klass->unicode, &conv);
11321 cpos = ptr + info->fields [i].offset;
11324 case MONO_MARSHAL_CONV_NONE:
11325 if (MONO_TYPE_ISSTRUCT (ftype)) {
11326 mono_struct_delete_old (ftype->data.klass, cpos);
11330 case MONO_MARSHAL_CONV_STR_LPWSTR:
11331 /* We assume this field points inside a MonoString */
11333 case MONO_MARSHAL_CONV_STR_LPTSTR:
11334 #ifdef TARGET_WIN32
11335 /* We assume this field points inside a MonoString
11339 case MONO_MARSHAL_CONV_STR_LPSTR:
11340 case MONO_MARSHAL_CONV_STR_BSTR:
11341 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11342 case MONO_MARSHAL_CONV_STR_TBSTR:
11343 mono_marshal_free (*(gpointer *)cpos);
11353 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11357 MONO_ARCH_SAVE_REGS;
11359 MONO_CHECK_ARG_NULL (src);
11360 MONO_CHECK_ARG_NULL (type);
11362 klass = mono_class_from_mono_type (type->type);
11363 if (!mono_class_init (klass))
11364 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11366 mono_struct_delete_old (klass, (char *)src);
11370 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11374 MONO_ARCH_SAVE_REGS;
11376 if ((gulong)size == 0)
11377 /* This returns a valid pointer for size 0 on MS.NET */
11381 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11383 res = g_try_malloc ((gulong)size);
11386 mono_gc_out_of_memory ((gulong)size);
11392 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11397 mono_gc_out_of_memory ((gulong)size);
11402 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11404 res = g_try_realloc (ptr, (gulong)size);
11407 mono_gc_out_of_memory ((gulong)size);
11413 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11415 MONO_ARCH_SAVE_REGS;
11425 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11427 MONO_ARCH_SAVE_REGS;
11430 return CoTaskMemAlloc (size);
11432 return g_try_malloc ((gulong)size);
11437 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11439 MONO_ARCH_SAVE_REGS;
11442 CoTaskMemFree (ptr);
11449 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11451 MONO_ARCH_SAVE_REGS;
11454 return CoTaskMemRealloc (ptr, size);
11456 return g_try_realloc (ptr, (gulong)size);
11461 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11463 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11467 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11469 MonoClass *klass = mono_type_get_class (type->type);
11470 if (!mono_class_init (klass))
11471 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11473 return mono_ftnptr_to_delegate (klass, ftn);
11477 * mono_marshal_is_loading_type_info:
11479 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11483 mono_marshal_is_loading_type_info (MonoClass *klass)
11485 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11487 return g_slist_find (loads_list, klass) != NULL;
11491 * mono_marshal_load_type_info:
11493 * Initialize klass->marshal_info using information from metadata. This function can
11494 * recursively call itself, and the caller is responsible to avoid that by calling
11495 * mono_marshal_is_loading_type_info () beforehand.
11497 * LOCKING: Acquires the loader lock.
11500 mono_marshal_load_type_info (MonoClass* klass)
11503 guint32 native_size = 0, min_align = 1, packing;
11504 MonoMarshalType *info;
11505 MonoClassField* field;
11508 GSList *loads_list;
11510 g_assert (klass != NULL);
11512 if (klass->marshal_info)
11513 return klass->marshal_info;
11515 if (!klass->inited)
11516 mono_class_init (klass);
11518 mono_loader_lock ();
11520 if (klass->marshal_info) {
11521 mono_loader_unlock ();
11522 return klass->marshal_info;
11526 * This function can recursively call itself, so we keep the list of classes which are
11527 * under initialization in a TLS list.
11529 g_assert (!mono_marshal_is_loading_type_info (klass));
11530 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11531 loads_list = g_slist_prepend (loads_list, klass);
11532 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11535 while ((field = mono_class_get_fields (klass, &iter))) {
11536 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11538 if (mono_field_is_deleted (field))
11543 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11545 /* The mempool is protected by the loader lock */
11546 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11547 info->num_fields = count;
11549 /* Try to find a size for this type in metadata */
11550 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11552 if (klass->parent) {
11553 int parent_size = mono_class_native_size (klass->parent, NULL);
11555 /* Add parent size to real size */
11556 native_size += parent_size;
11557 info->native_size = parent_size;
11560 packing = klass->packing_size ? klass->packing_size : 8;
11563 while ((field = mono_class_get_fields (klass, &iter))) {
11567 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11570 if (mono_field_is_deleted (field))
11572 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11573 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11574 NULL, NULL, &info->fields [j].mspec);
11576 info->fields [j].field = field;
11578 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11579 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11580 /* This field is a hack inserted by MCS to empty structures */
11585 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11586 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11587 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11588 &align, TRUE, klass->unicode);
11589 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11590 min_align = MAX (align, min_align);
11591 info->fields [j].offset = info->native_size;
11592 info->fields [j].offset += align - 1;
11593 info->fields [j].offset &= ~(align - 1);
11594 info->native_size = info->fields [j].offset + size;
11596 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11597 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11598 &align, TRUE, klass->unicode);
11599 min_align = packing;
11600 info->fields [j].offset = field->offset - sizeof (MonoObject);
11601 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11607 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11608 info->native_size = MAX (native_size, info->native_size);
11610 * If the provided Size is equal or larger than the calculated size, and there
11611 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11613 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11614 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11618 if (info->native_size & (min_align - 1)) {
11619 info->native_size += min_align - 1;
11620 info->native_size &= ~(min_align - 1);
11623 info->min_align = min_align;
11625 /* Update the class's blittable info, if the layouts don't match */
11626 if (info->native_size != mono_class_value_size (klass, NULL))
11627 klass->blittable = FALSE;
11629 /* If this is an array type, ensure that we have element info */
11630 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11631 mono_marshal_load_type_info (klass->element_class);
11634 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11635 loads_list = g_slist_remove (loads_list, klass);
11636 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11638 /*We do double-checking locking on marshal_info */
11639 mono_memory_barrier ();
11641 klass->marshal_info = info;
11643 mono_loader_unlock ();
11645 return klass->marshal_info;
11649 * mono_class_native_size:
11652 * Returns: the native size of an object instance (when marshaled
11653 * to unmanaged code)
11656 mono_class_native_size (MonoClass *klass, guint32 *align)
11658 if (!klass->marshal_info) {
11659 if (mono_marshal_is_loading_type_info (klass)) {
11664 mono_marshal_load_type_info (klass);
11669 *align = klass->marshal_info->min_align;
11671 return klass->marshal_info->native_size;
11674 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11675 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11676 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11677 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11680 * mono_type_native_stack_size:
11681 * @t: the type to return the size it uses on the stack
11683 * Returns: the number of bytes required to hold an instance of this
11684 * type on the native stack
11687 mono_type_native_stack_size (MonoType *t, guint32 *align)
11691 g_assert (t != NULL);
11697 *align = sizeof (gpointer);
11698 return sizeof (gpointer);
11702 case MONO_TYPE_BOOLEAN:
11703 case MONO_TYPE_CHAR:
11714 case MONO_TYPE_STRING:
11715 case MONO_TYPE_OBJECT:
11716 case MONO_TYPE_CLASS:
11717 case MONO_TYPE_SZARRAY:
11718 case MONO_TYPE_PTR:
11719 case MONO_TYPE_FNPTR:
11720 case MONO_TYPE_ARRAY:
11721 *align = sizeof (gpointer);
11722 return sizeof (gpointer);
11727 *align = ALIGNMENT (gdouble);
11731 *align = ALIGNMENT (glong);
11733 case MONO_TYPE_GENERICINST:
11734 if (!mono_type_generic_inst_is_valuetype (t)) {
11735 *align = sizeof (gpointer);
11736 return sizeof (gpointer);
11739 case MONO_TYPE_TYPEDBYREF:
11740 case MONO_TYPE_VALUETYPE: {
11742 MonoClass *klass = mono_class_from_mono_type (t);
11744 if (klass->enumtype)
11745 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11747 size = mono_class_native_size (klass, align);
11748 *align = *align + 3;
11758 g_error ("type 0x%02x unknown", t->type);
11764 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11765 gboolean as_field, gboolean unicode)
11767 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11770 switch (native_type) {
11771 case MONO_NATIVE_BOOLEAN:
11774 case MONO_NATIVE_I1:
11775 case MONO_NATIVE_U1:
11778 case MONO_NATIVE_I2:
11779 case MONO_NATIVE_U2:
11780 case MONO_NATIVE_VARIANTBOOL:
11783 case MONO_NATIVE_I4:
11784 case MONO_NATIVE_U4:
11785 case MONO_NATIVE_ERROR:
11788 case MONO_NATIVE_I8:
11789 case MONO_NATIVE_U8:
11790 *align = ALIGNMENT(guint64);
11792 case MONO_NATIVE_R4:
11795 case MONO_NATIVE_R8:
11796 *align = ALIGNMENT(double);
11798 case MONO_NATIVE_INT:
11799 case MONO_NATIVE_UINT:
11800 case MONO_NATIVE_LPSTR:
11801 case MONO_NATIVE_LPWSTR:
11802 case MONO_NATIVE_LPTSTR:
11803 case MONO_NATIVE_BSTR:
11804 case MONO_NATIVE_ANSIBSTR:
11805 case MONO_NATIVE_TBSTR:
11806 case MONO_NATIVE_LPARRAY:
11807 case MONO_NATIVE_SAFEARRAY:
11808 case MONO_NATIVE_IUNKNOWN:
11809 case MONO_NATIVE_IDISPATCH:
11810 case MONO_NATIVE_INTERFACE:
11811 case MONO_NATIVE_ASANY:
11812 case MONO_NATIVE_FUNC:
11813 case MONO_NATIVE_LPSTRUCT:
11814 *align = ALIGNMENT(gpointer);
11815 return sizeof (gpointer);
11816 case MONO_NATIVE_STRUCT:
11817 klass = mono_class_from_mono_type (type);
11818 if (klass == mono_defaults.object_class &&
11819 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11823 return mono_class_native_size (klass, align);
11824 case MONO_NATIVE_BYVALTSTR: {
11825 int esize = unicode ? 2: 1;
11828 return mspec->data.array_data.num_elem * esize;
11830 case MONO_NATIVE_BYVALARRAY: {
11831 // FIXME: Have to consider ArraySubType
11833 klass = mono_class_from_mono_type (type);
11834 if (klass->element_class == mono_defaults.char_class) {
11835 esize = unicode ? 2 : 1;
11838 esize = mono_class_native_size (klass->element_class, align);
11841 return mspec->data.array_data.num_elem * esize;
11843 case MONO_NATIVE_CUSTOM:
11844 *align = sizeof (gpointer);
11845 return sizeof (gpointer);
11847 case MONO_NATIVE_CURRENCY:
11848 case MONO_NATIVE_VBBYREFSTR:
11850 g_error ("native type %02x not implemented", native_type);
11853 g_assert_not_reached ();
11858 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11866 t = &o->vtable->klass->byval_arg;
11870 case MONO_TYPE_PTR:
11873 case MONO_TYPE_BOOLEAN:
11876 case MONO_TYPE_CHAR:
11881 return mono_object_unbox (o);
11883 case MONO_TYPE_STRING:
11884 switch (string_encoding) {
11885 case MONO_NATIVE_LPWSTR:
11886 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11888 case MONO_NATIVE_LPSTR:
11889 return mono_string_to_lpstr ((MonoString*)o);
11892 g_warning ("marshaling conversion %d not implemented", string_encoding);
11893 g_assert_not_reached ();
11896 case MONO_TYPE_CLASS:
11897 case MONO_TYPE_VALUETYPE: {
11898 MonoMethod *method;
11901 MonoBoolean delete_old = FALSE;
11903 klass = t->data.klass;
11905 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11908 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11909 klass->blittable || klass->enumtype))
11910 return mono_object_unbox (o);
11912 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11914 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11915 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11919 pa [2] = &delete_old;
11921 mono_runtime_invoke (method, NULL, pa, NULL);
11928 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11934 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11942 t = &o->vtable->klass->byval_arg;
11944 case MONO_TYPE_STRING:
11945 switch (string_encoding) {
11946 case MONO_NATIVE_LPWSTR:
11947 case MONO_NATIVE_LPSTR:
11948 mono_marshal_free (ptr);
11951 g_warning ("marshaling conversion %d not implemented", string_encoding);
11952 g_assert_not_reached ();
11955 case MONO_TYPE_CLASS:
11956 case MONO_TYPE_VALUETYPE: {
11957 klass = t->data.klass;
11959 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11960 klass->blittable || klass->enumtype))
11963 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11964 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11970 mono_runtime_invoke (method, NULL, pa, NULL);
11973 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11974 mono_struct_delete_old (klass, ptr);
11977 mono_marshal_free (ptr);
11986 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11988 MonoMethodSignature *sig, *csig;
11989 MonoMethodBuilder *mb;
11994 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11995 mb->method->slot = -1;
11997 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11998 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12000 sig = mono_method_signature (method);
12001 csig = signature_dup (method->klass->image, sig);
12002 csig->generic_param_count = 0;
12004 mono_mb_emit_ldarg (mb, 0);
12005 for (i = 0; i < csig->param_count; i++)
12006 mono_mb_emit_ldarg (mb, i + 1);
12007 mono_mb_emit_managed_call (mb, method, NULL);
12008 mono_mb_emit_byte (mb, CEE_RET);
12010 /* We can corlib internal methods */
12011 mb->skip_visibility = TRUE;
12013 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
12015 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12016 info->d.generic_array_helper.method = method;
12017 mono_marshal_set_wrapper_info (res, info);
12025 * The mono_win32_compat_* functions are implementations of inline
12026 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12027 * although not exported by kernel32.
12029 * We map the appropiate kernel32 entries to these functions using
12030 * dllmaps declared in the global etc/mono/config.
12034 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12036 if (!dest || !source)
12039 memcpy (dest, source, length);
12043 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12045 memset (dest, fill, length);
12049 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12051 if (!dest || !source)
12054 memmove (dest, source, length);
12058 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12060 memset (dest, 0, length);
12064 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12069 for (i = 0; i < len; ++i)
12073 g_assert (i < len);
12076 while (byte && !(byte & 1))
12078 g_assert (byte == 1);
12081 *bitmask = buf [i];
12085 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12087 MonoMethodBuilder *mb;
12088 MonoMethodSignature *sig, *csig;
12089 MonoExceptionClause *clause;
12094 int i, param_count, sig_size, pos_leave;
12098 klass = method->klass;
12099 image = method->klass->image;
12100 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12102 if ((res = mono_marshal_find_in_cache (cache, method)))
12105 sig = mono_method_signature (method);
12106 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12108 /* add "this" and exception param */
12109 param_count = sig->param_count + sig->hasthis + 1;
12111 /* dup & extend signature */
12112 csig = mono_metadata_signature_alloc (image, param_count);
12113 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12114 memcpy (csig, sig, sig_size);
12115 csig->param_count = param_count;
12118 csig->call_convention = MONO_CALL_DEFAULT;
12120 if (sig->hasthis) {
12122 csig->params [0] = &klass->byval_arg;
12123 /* move params up by one */
12124 for (i = 0; i < sig->param_count; i++)
12125 csig->params [i + 1] = sig->params [i];
12128 /* setup exception param as byref+[out] */
12129 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12130 &mono_defaults.exception_class->byval_arg);
12131 csig->params [param_count - 1]->byref = 1;
12132 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12134 /* convert struct return to object */
12135 if (MONO_TYPE_ISSTRUCT (sig->ret))
12136 csig->ret = &mono_defaults.object_class->byval_arg;
12138 /* local 0 (temp for exception object) */
12139 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12141 /* local 1 (temp for result) */
12142 if (!MONO_TYPE_IS_VOID (sig->ret))
12143 mono_mb_add_local (mb, sig->ret);
12145 /* clear exception arg */
12146 mono_mb_emit_ldarg (mb, param_count - 1);
12147 mono_mb_emit_byte (mb, CEE_LDNULL);
12148 mono_mb_emit_byte (mb, CEE_STIND_REF);
12151 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12152 clause->try_offset = mono_mb_get_label (mb);
12154 /* push method's args */
12155 for (i = 0; i < param_count - 1; i++) {
12159 mono_mb_emit_ldarg (mb, i);
12161 /* get the byval type of the param */
12162 klass = mono_class_from_mono_type (csig->params [i]);
12163 type = &klass->byval_arg;
12165 /* unbox struct args */
12166 if (MONO_TYPE_ISSTRUCT (type)) {
12167 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12169 /* byref args & and the "this" arg must remain a ptr.
12170 Otherwise make a copy of the value type */
12171 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12172 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12174 csig->params [i] = &mono_defaults.object_class->byval_arg;
12179 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12180 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12182 mono_mb_emit_op (mb, CEE_CALL, method);
12184 /* save result at local 1 */
12185 if (!MONO_TYPE_IS_VOID (sig->ret))
12186 mono_mb_emit_stloc (mb, 1);
12188 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12191 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12192 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12193 clause->data.catch_class = mono_defaults.object_class;
12195 clause->handler_offset = mono_mb_get_label (mb);
12197 /* store exception at local 0 */
12198 mono_mb_emit_stloc (mb, 0);
12199 mono_mb_emit_ldarg (mb, param_count - 1);
12200 mono_mb_emit_ldloc (mb, 0);
12201 mono_mb_emit_byte (mb, CEE_STIND_REF);
12202 mono_mb_emit_branch (mb, CEE_LEAVE);
12204 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12206 mono_mb_set_clauses (mb, 1, clause);
12208 mono_mb_patch_branch (mb, pos_leave);
12211 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12212 mono_mb_emit_ldloc (mb, 1);
12214 /* box the return value */
12215 if (MONO_TYPE_ISSTRUCT (sig->ret))
12216 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12219 mono_mb_emit_byte (mb, CEE_RET);
12221 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12228 * mono_marshal_free_dynamic_wrappers:
12230 * Free wrappers of the dynamic method METHOD.
12233 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12235 MonoImage *image = method->klass->image;
12237 g_assert (method->dynamic);
12239 /* This could be called during shutdown */
12240 if (marshal_mutex_initialized)
12241 mono_marshal_lock ();
12243 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12244 * they could be shared with other methods ?
12246 if (image->runtime_invoke_direct_cache)
12247 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
12248 if (image->delegate_bound_static_invoke_cache)
12249 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
12250 if (image->delegate_abstract_invoke_cache)
12251 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
12253 if (marshal_mutex_initialized)
12254 mono_marshal_unlock ();
12258 * mono_marshal_free_inflated_wrappers:
12260 * Free wrappers of the inflated method METHOD.
12264 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
12266 SignatureMethodPair *pair = (SignatureMethodPair*)key;
12267 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
12269 return mono_metadata_signature_equal (pair->sig, sig);
12273 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12275 MonoMethodSignature *sig = method->signature;
12277 g_assert (method->is_inflated);
12279 /* Ignore calls occuring late during cleanup. */
12280 if (!marshal_mutex_initialized)
12283 mono_marshal_lock ();
12285 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12286 * they could be shared with other methods ?
12290 * indexed by MonoMethodSignature
12292 /* FIXME: This could remove unrelated wrappers as well */
12293 if (sig && method->klass->image->delegate_begin_invoke_cache)
12294 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12295 if (sig && method->klass->image->delegate_end_invoke_cache)
12296 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12297 if (sig && method->klass->image->delegate_invoke_cache)
12298 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12299 if (sig && method->klass->image->runtime_invoke_cache)
12300 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12303 * indexed by SignatureMethodPair
12305 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12306 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12307 signature_method_pair_matches_signature, (gpointer)sig);
12309 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12310 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12311 signature_method_pair_matches_signature, (gpointer)sig);
12314 * indexed by MonoMethod pointers
12316 if (method->klass->image->runtime_invoke_direct_cache)
12317 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12318 if (method->klass->image->managed_wrapper_cache)
12319 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12320 if (method->klass->image->native_wrapper_cache)
12321 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12322 if (method->klass->image->remoting_invoke_cache)
12323 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12324 if (method->klass->image->synchronized_cache)
12325 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12326 if (method->klass->image->unbox_wrapper_cache)
12327 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12328 if (method->klass->image->cominterop_invoke_cache)
12329 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12330 if (method->klass->image->cominterop_wrapper_cache)
12331 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12332 if (method->klass->image->thunk_invoke_cache)
12333 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12334 if (method->klass->image->native_func_wrapper_aot_cache)
12335 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
12337 mono_marshal_unlock ();