2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
14 #include "metadata/marshal.h"
15 #include "metadata/method-builder.h"
16 #include "metadata/tabledefs.h"
17 #include "metadata/exception.h"
18 #include "metadata/appdomain.h"
19 #include "mono/metadata/debug-helpers.h"
20 #include "mono/metadata/threadpool.h"
21 #include "mono/metadata/threads.h"
22 #include "mono/metadata/monitor.h"
23 #include "mono/metadata/metadata-internals.h"
24 #include "mono/metadata/domain-internals.h"
25 #include "mono/metadata/gc-internal.h"
26 #include "mono/metadata/threads-types.h"
27 #include "mono/metadata/string-icalls.h"
28 #include <mono/metadata/gc-internal.h>
32 /* #define DEBUG_RUNTIME_CODE */
34 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
38 MONO_MARSHAL_NONE, /* No marshalling needed */
39 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
40 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
41 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
42 } MonoXDomainMarshalType;
49 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
52 #include "mono/cil/opcode.def"
57 struct _MonoRemotingMethods {
59 MonoMethod *invoke_with_check;
60 MonoMethod *xdomain_invoke;
61 MonoMethod *xdomain_dispatch;
64 typedef struct _MonoRemotingMethods MonoRemotingMethods;
67 * This mutex protects the various marshalling related caches in MonoImage
68 * and a few other data structures static to this file.
69 * Note that when this lock is held it is not possible to take other runtime
70 * locks like the loader lock.
72 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
73 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
74 static CRITICAL_SECTION marshal_mutex;
76 /* This mutex protects the various cominterop related caches in MonoImage */
77 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
78 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
79 static CRITICAL_SECTION cominterop_mutex;
81 /* Maps wrapper methods to the methods they wrap */
82 static GHashTable *wrapper_hash;
84 static guint32 last_error_tls_id;
86 static guint32 load_type_info_tls_id;
89 delegate_hash_table_add (MonoDelegate *d);
92 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
95 mono_struct_delete_old (MonoClass *klass, char *ptr);
98 mono_marshal_string_to_utf16 (MonoString *s);
101 mono_marshal_string_to_utf16_copy (MonoString *s);
104 mono_string_to_lpstr (MonoString *string_obj);
107 mono_string_from_bstr (gpointer bstr);
110 mono_free_bstr (gpointer bstr);
113 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
116 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
119 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
121 static MonoAsyncResult *
122 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
125 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
128 mono_marshal_xdomain_copy_value (MonoObject *val);
131 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
134 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
137 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
140 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
142 static MonoReflectionType *
143 type_from_handle (MonoType *handle);
146 mono_marshal_set_last_error_windows (int error);
149 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions);
151 static void init_safe_handle (void);
153 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
154 static MonoMethod *sh_dangerous_add_ref;
155 static MonoMethod *sh_dangerous_release;
161 sh_dangerous_add_ref = mono_class_get_method_from_name (
162 mono_defaults.safehandle_class, "DangerousAddRef", 1);
163 sh_dangerous_release = mono_class_get_method_from_name (
164 mono_defaults.safehandle_class, "DangerousRelease", 0);
168 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
170 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
172 mono_register_jit_icall (func, name, sig, save);
175 static MonoMethodSignature*
176 signature_dup (MonoImage *image, MonoMethodSignature *sig)
178 MonoMethodSignature *res;
181 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
183 res = mono_mempool_alloc (image->mempool, sigsize);
184 mono_loader_unlock ();
185 memcpy (res, sig, sigsize);
190 static MonoMethodSignature*
191 signature_no_pinvoke (MonoMethod *method)
193 MonoMethodSignature *sig = mono_method_signature (method);
195 sig = signature_dup (method->klass->image, sig);
196 sig->pinvoke = FALSE;
202 /* Begin COM Interop related stuff until seperate file */
205 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
206 #ifdef PLATFORM_WIN32
207 #define STDCALL __stdcall
212 /* Upon creation of a CCW, only allocate a weak handle and set the
213 * reference count to 0. If the unmanaged client code decides to addref and
214 * hold onto the CCW, I then allocate a strong handle. Once the reference count
215 * goes back to 0, convert back to a weak handle.
220 GHashTable* vtable_hash;
223 /* This type is the actual pointer passed to unmanaged code
224 * to represent a COM interface.
232 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
234 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
236 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
239 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
241 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
243 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
244 gunichar2** rgszNames, guint32 cNames,
245 guint32 lcid, gint32 *rgDispId);
247 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
248 gpointer riid, guint32 lcid,
249 guint16 wFlags, gpointer pDispParams,
250 gpointer pVarResult, gpointer pExcepInfo,
254 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
257 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
260 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
263 * cominterop_method_signature:
266 * Returns: the corresponding unmanaged method signature for a managed COM
269 static MonoMethodSignature*
270 cominterop_method_signature (MonoMethod* method)
272 MonoMethodSignature *res;
273 MonoImage *image = method->klass->image;
274 MonoMethodSignature *sig = mono_method_signature (method);
275 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
278 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
280 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
283 sigsize = sizeof (MonoMethodSignature) + ((param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
285 res = mono_mempool_alloc (image->mempool, sigsize);
286 mono_loader_unlock ();
287 memcpy (res, sig, sigsize);
289 // now move args forward one
290 for (i = sig->param_count-1; i >= 0; i--)
291 res->params[i+1] = sig->params[i];
293 // first arg is interface pointer
294 res->params[0] = &mono_defaults.int_class->byval_arg;
300 // last arg is return type
301 if (!MONO_TYPE_IS_VOID (sig->ret)) {
302 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
303 res->params[param_count-1]->byref = 1;
304 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
307 // return type is always int32 (HRESULT)
308 res->ret = &mono_defaults.int32_class->byval_arg;
312 res->pinvoke = FALSE;
318 res->param_count = param_count;
320 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
321 #ifdef PLATFORM_WIN32
322 res->call_convention = MONO_CALL_STDCALL;
324 res->call_convention = MONO_CALL_C;
331 * cominterop_get_function_pointer:
332 * @itf: a pointer to the COM interface
333 * @slot: the vtable slot of the method pointer to return
335 * Returns: the unmanaged vtable function pointer from the interface
338 cominterop_get_function_pointer (gpointer itf, int slot)
341 func = *((*(gpointer**)itf)+slot);
346 * cominterop_object_is_com_object:
347 * @obj: a pointer to the object
349 * Returns: a value indicating if the object is a
350 * Runtime Callable Wrapper (RCW) for a COM object
353 cominterop_object_is_rcw (MonoObject *obj)
355 MonoClass *klass = NULL;
356 MonoRealProxy* real_proxy = NULL;
359 klass = mono_object_class (obj);
360 if (klass != mono_defaults.transparent_proxy_class)
363 real_proxy = ((MonoTransparentProxy*)obj)->rp;
367 klass = mono_object_class (real_proxy);
368 return (klass && klass == mono_defaults.com_interop_proxy_class);
372 cominterop_get_com_slot_begin (MonoClass* klass)
374 static MonoClass *interface_type_attribute = NULL;
375 MonoCustomAttrInfo *cinfo = NULL;
376 MonoInterfaceTypeAttribute* itf_attr = NULL;
378 if (!interface_type_attribute)
379 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
380 cinfo = mono_custom_attrs_from_class (klass);
382 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
384 mono_custom_attrs_free (cinfo);
387 if (itf_attr && itf_attr->intType == 1)
388 return 3; /* 3 methods in IUnknown*/
390 return 7; /* 7 methods in IDispatch*/
394 * cominterop_get_method_interface:
395 * @method: method being called
397 * Returns: the MonoClass* representing the interface on which
398 * the method is defined.
401 cominterop_get_method_interface (MonoMethod* method)
403 MonoClass *ic = method->klass;
405 /* if method is on a class, we need to look up interface method exists on */
406 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
407 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
410 for (i = 0; i < ifaces->len; ++i) {
412 ic = g_ptr_array_index (ifaces, i);
413 offset = mono_class_interface_offset (method->klass, ic);
414 if (method->slot >= offset && method->slot < offset + ic->method.count)
418 g_ptr_array_free (ifaces, TRUE);
423 g_assert (MONO_CLASS_IS_INTERFACE (ic));
429 * cominterop_get_com_slot_for_method:
432 * Returns: the method's slot in the COM interface vtable
435 cominterop_get_com_slot_for_method (MonoMethod* method)
437 guint32 slot = method->slot;
438 MonoClass *ic = method->klass;
440 /* if method is on a class, we need to look up interface method exists on */
441 if (!MONO_CLASS_IS_INTERFACE(ic)) {
443 ic = cominterop_get_method_interface (method);
444 offset = mono_class_interface_offset (method->klass, ic);
445 g_assert(offset >= 0);
450 g_assert (MONO_CLASS_IS_INTERFACE (ic));
452 return slot + cominterop_get_com_slot_begin (ic);
457 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
460 cominterop_class_guid (MonoClass* klass, guint8* guid)
462 static MonoClass *GuidAttribute = NULL;
463 MonoCustomAttrInfo *cinfo;
465 /* Handle the GuidAttribute */
467 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
469 cinfo = mono_custom_attrs_from_class (klass);
471 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
476 mono_custom_attrs_free (cinfo);
478 cominterop_mono_string_to_guid (attr->guid, guid);
485 * cominterop_get_interface:
486 * @obj: managed wrapper object containing COM object
487 * @ic: interface type to retrieve for COM object
489 * Returns: the COM interface requested
492 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
497 g_assert (MONO_CLASS_IS_INTERFACE (ic));
499 mono_cominterop_lock ();
501 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
502 mono_cominterop_unlock ();
506 int found = cominterop_class_guid (ic, iid);
509 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
510 if (hr < 0 && throw_exception) {
511 static MonoMethod* throw_exception_for_hr = NULL;
513 void* params[1] = {&hr};
514 if (!throw_exception_for_hr)
515 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
516 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
517 mono_raise_exception (ex);
520 if (hr >= 0 && itf) {
521 mono_cominterop_lock ();
523 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
524 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
525 mono_cominterop_unlock ();
536 cominterop_get_hresult_for_exception (MonoException* exc)
543 mono_marshal_init (void)
545 static gboolean module_initialized = FALSE;
547 if (!module_initialized) {
548 char* com_provider_env = NULL;
549 module_initialized = TRUE;
550 InitializeCriticalSection (&marshal_mutex);
551 InitializeCriticalSection (&cominterop_mutex);
552 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
553 last_error_tls_id = TlsAlloc ();
554 load_type_info_tls_id = TlsAlloc ();
556 com_provider_env = getenv ("MONO_COM");
557 if (com_provider_env && !strcmp(com_provider_env, "MS"))
558 com_provider = MONO_COM_MS;
560 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
561 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
562 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
563 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
564 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
565 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
566 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
567 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
568 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
569 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
570 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
571 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
572 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
573 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
574 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
575 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
576 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
577 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
578 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
579 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
580 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
581 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
582 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
583 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
584 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
585 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
586 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
587 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
588 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
589 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
590 register_icall (g_free, "g_free", "void ptr", FALSE);
591 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
592 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
593 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
594 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
595 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
596 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
597 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
598 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
599 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
600 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
601 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
602 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
603 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
604 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
605 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
606 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
607 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
608 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
609 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
610 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
611 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
612 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
617 mono_marshal_cleanup (void)
619 g_hash_table_destroy (wrapper_hash);
620 TlsFree (load_type_info_tls_id);
621 TlsFree (last_error_tls_id);
622 DeleteCriticalSection (&marshal_mutex);
623 DeleteCriticalSection (&cominterop_mutex);
626 MonoClass *byte_array_class;
627 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
628 static MonoMethod *method_set_context, *method_get_context;
629 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
632 mono_remoting_marshal_init (void)
636 static gboolean module_initialized = FALSE;
638 if (!module_initialized) {
639 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
640 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
641 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
642 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
644 klass = mono_defaults.real_proxy_class;
645 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
647 klass = mono_defaults.exception_class;
648 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
650 klass = mono_defaults.thread_class;
651 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
653 klass = mono_defaults.appdomain_class;
654 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
655 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
657 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
658 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
660 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
661 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
663 module_initialized = TRUE;
668 mono_delegate_to_ftnptr (MonoDelegate *delegate)
670 MonoMethod *method, *wrapper;
676 if (delegate->delegate_trampoline)
677 return delegate->delegate_trampoline;
679 klass = ((MonoObject *)delegate)->vtable->klass;
680 g_assert (klass->delegate);
682 method = delegate->method;
684 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
686 delegate->delegate_trampoline = mono_compile_method (wrapper);
688 // Add the delegate to the delegate hash table
689 delegate_hash_table_add (delegate);
691 /* when the object is collected, collect the dynamic method, too */
692 mono_object_register_finalizer ((MonoObject*)delegate);
694 return delegate->delegate_trampoline;
698 * this hash table maps from a delegate trampoline object to a weak reference
699 * of the delegate. As an optimizations with a non-moving GC we store the
700 * object pointer itself, otherwise we use a GC handle.
702 static GHashTable *delegate_hash_table;
705 delegate_hash_table_new (void) {
706 return g_hash_table_new (NULL, NULL);
710 delegate_hash_table_remove (MonoDelegate *d)
712 #ifdef HAVE_MOVING_COLLECTOR
715 mono_marshal_lock ();
716 if (delegate_hash_table == NULL)
717 delegate_hash_table = delegate_hash_table_new ();
718 #ifdef HAVE_MOVING_COLLECTOR
719 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
721 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
722 mono_marshal_unlock ();
723 #ifdef HAVE_MOVING_COLLECTOR
724 mono_gchandle_free (gchandle);
729 delegate_hash_table_add (MonoDelegate *d)
731 #ifdef HAVE_MOVING_COLLECTOR
732 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
734 mono_marshal_lock ();
735 if (delegate_hash_table == NULL)
736 delegate_hash_table = delegate_hash_table_new ();
737 #ifdef HAVE_MOVING_COLLECTOR
738 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
740 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
742 mono_marshal_unlock ();
746 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
748 #ifdef HAVE_MOVING_COLLECTOR
753 mono_marshal_lock ();
754 if (delegate_hash_table == NULL)
755 delegate_hash_table = delegate_hash_table_new ();
757 #ifdef HAVE_MOVING_COLLECTOR
758 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
759 mono_marshal_unlock ();
761 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
765 d = g_hash_table_lookup (delegate_hash_table, ftn);
766 mono_marshal_unlock ();
769 /* This is a native function, so construct a delegate for it */
770 static MonoClass *UnmanagedFunctionPointerAttribute;
771 MonoMethodSignature *sig;
773 MonoMarshalSpec **mspecs;
774 MonoCustomAttrInfo *cinfo;
775 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
776 MonoMethod *invoke = mono_get_delegate_invoke (klass);
777 MonoMethodPInvoke piinfo;
780 memset (&piinfo, 0, sizeof (piinfo));
781 if (!UnmanagedFunctionPointerAttribute)
782 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
784 /* The attribute is only available in Net 2.0 */
785 if (UnmanagedFunctionPointerAttribute) {
787 * The pinvoke attributes are stored in a real custom attribute so we have to
790 cinfo = mono_custom_attrs_from_class (klass);
792 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
794 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
797 mono_custom_attrs_free (cinfo);
801 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
802 mono_method_get_marshal_info (invoke, mspecs);
803 /* Freed below so don't alloc from mempool */
804 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
807 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
809 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
811 mono_metadata_free_marshal_spec (mspecs [i]);
815 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
816 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
819 if (d->object.vtable->domain != mono_domain_get ())
820 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
826 mono_delegate_free_ftnptr (MonoDelegate *delegate)
831 delegate_hash_table_remove (delegate);
833 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
835 if (!delegate->target) {
836 /* The wrapper method is shared between delegates -> no need to free it */
841 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
844 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
849 mono_array_to_savearray (MonoArray *array)
854 g_assert_not_reached ();
859 mono_array_to_lparray (MonoArray *array)
864 /* fixme: maybe we need to make a copy */
865 return array->vector;
869 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
871 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
873 if (elclass == mono_defaults.byte_class) {
874 GError *error = NULL;
878 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
881 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
885 g_error_free (error);
888 g_assert_not_reached ();
892 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
894 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
896 if (elclass == mono_defaults.byte_class) {
898 GError *error = NULL;
900 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
902 MonoException *exc = mono_get_exception_argument ("string", error->message);
903 g_error_free (error);
904 mono_raise_exception (exc);
907 memcpy (native_arr, as, MIN (strlen (as), elnum));
910 g_assert_not_reached ();
915 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
917 GError *error = NULL;
927 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
929 if (items_written > mono_stringbuilder_capacity (sb))
930 items_written = mono_stringbuilder_capacity (sb);
933 if (! sb->str || sb->str == sb->cached_str) {
934 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
935 sb->cached_str = NULL;
938 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
939 sb->length = items_written;
941 g_error_free (error);
947 * FIXME: This routine does not seem to do what it seems to do
948 * the @text is never copied into the string builder
951 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
958 g_assert (mono_string_chars (sb->str) == text);
960 for (len = 0; text [len] != 0; ++len)
967 * mono_string_builder_to_utf8:
968 * @sb: the string builder
970 * Converts to utf8 the contents of the MonoStringBuilder.
972 * Returns: a utf8 string with the contents of the StringBuilder.
974 * The return value must be released with g_free.
977 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
979 GError *error = NULL;
986 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
988 * The sb could have been allocated with the default capacity and be empty.
989 * we need to alloc a buffer of the default capacity in this case.
991 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
992 sb->cached_str = NULL;
995 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
997 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
999 g_error_free (error);
1000 mono_marshal_free (res);
1001 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1003 memcpy (res, tmp, sb->length + 1);
1011 * mono_string_builder_to_utf16:
1012 * @sb: the string builder
1014 * Converts to utf16 the contents of the MonoStringBuilder.
1016 * Returns: a utf16 string with the contents of the StringBuilder.
1018 * The return value must not be freed.
1021 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1029 * The stringbuilder might not have ownership of this string. If this is
1030 * the case, we must duplicate the string, so that we don't munge immutable
1033 if (sb->str == sb->cached_str) {
1035 * The sb could have been allocated with the default capacity and be empty.
1036 * we need to alloc a buffer of the default capacity in this case.
1038 if (sb->str->length == 0)
1039 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1041 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1042 sb->cached_str = NULL;
1045 return mono_string_chars (sb->str);
1049 mono_string_to_lpstr (MonoString *s)
1051 #ifdef PLATFORM_WIN32
1054 GError *error = NULL;
1060 as = CoTaskMemAlloc (1);
1065 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1067 MonoException *exc = mono_get_exception_argument ("string", error->message);
1068 g_error_free (error);
1069 mono_raise_exception(exc);
1072 as = CoTaskMemAlloc (len + 1);
1073 memcpy (as, tmp, len + 1);
1078 return mono_string_to_utf8 (s);
1083 mono_string_to_ansibstr (MonoString *string_obj)
1085 g_error ("UnmanagedMarshal.BStr is not implemented.");
1089 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
1090 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
1091 typedef void (*SysFreeStringFunc)(gunichar* str);
1093 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
1094 static SysStringLenFunc sys_string_len_ms = NULL;
1095 static SysFreeStringFunc sys_free_string_ms = NULL;
1098 init_com_provider_ms (void)
1100 static gboolean initialized = FALSE;
1102 MonoDl *module = NULL;
1103 const char* scope = "liboleaut32.so";
1108 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
1110 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
1111 g_assert_not_reached ();
1114 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
1116 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
1117 g_assert_not_reached ();
1121 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
1123 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
1124 g_assert_not_reached ();
1128 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
1130 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
1131 g_assert_not_reached ();
1140 mono_string_to_bstr (MonoString *string_obj)
1142 #ifdef PLATFORM_WIN32
1145 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1147 if (com_provider == MONO_COM_DEFAULT) {
1148 int slen = mono_string_length (string_obj);
1149 char *ret = g_malloc (slen * 2 + 4 + 2);
1152 memcpy (ret + 4, mono_string_chars (string_obj), slen * 2);
1153 * ((guint32 *) ret) = slen;
1154 ret [4 + slen * 2] = 0;
1155 ret [5 + slen * 2] = 0;
1158 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1159 gpointer ret = NULL;
1160 gunichar* str = NULL;
1162 len = mono_string_length (string_obj);
1163 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
1165 ret = sys_alloc_string_len_ms (str, len);
1169 g_assert_not_reached ();
1175 mono_string_from_bstr (gpointer bstr)
1177 #ifdef PLATFORM_WIN32
1180 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1182 if (com_provider == MONO_COM_DEFAULT) {
1183 return mono_string_new_utf16 (mono_domain_get (), bstr, *(guint32 *)((char *)bstr - 4));
1184 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1185 MonoString* str = NULL;
1187 gunichar2* utf16 = NULL;
1189 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
1190 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
1194 g_assert_not_reached ();
1201 mono_free_bstr (gpointer bstr)
1203 #ifdef PLATFORM_WIN32
1204 SysFreeString ((BSTR)bstr);
1206 if (com_provider == MONO_COM_DEFAULT) {
1207 g_free (((char *)bstr) - 4);
1208 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1209 sys_free_string_ms (bstr);
1211 g_assert_not_reached ();
1218 * mono_string_to_byvalstr:
1219 * @dst: Where to store the null-terminated utf8 decoded string.
1220 * @src: the MonoString to copy.
1221 * @size: the maximum number of bytes to copy.
1223 * Copies the MonoString pointed to by @src as a utf8 string
1224 * into @dst, it copies at most @size bytes into the destination.
1227 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1232 g_assert (dst != NULL);
1233 g_assert (size > 0);
1235 memset (dst, 0, size);
1239 s = mono_string_to_utf8 (src);
1240 len = MIN (size, strlen (s));
1243 memcpy (dst, s, len);
1248 * mono_string_to_byvalwstr:
1249 * @dst: Where to store the null-terminated utf16 decoded string.
1250 * @src: the MonoString to copy.
1251 * @size: the maximum number of bytes to copy.
1253 * Copies the MonoString pointed to by @src as a utf16 string into
1254 * @dst, it copies at most @size bytes into the destination (including
1255 * a terminating 16-bit zero terminator).
1258 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1262 g_assert (dst != NULL);
1263 g_assert (size > 1);
1266 memset (dst, 0, size * 2);
1270 len = MIN (size, (mono_string_length (src)));
1271 memcpy (dst, mono_string_chars (src), size * 2);
1272 if (size <= mono_string_length (src))
1274 *((gunichar2 *) dst + len) = 0;
1278 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1281 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1282 mono_mb_emit_byte (mb, CEE_LDIND_I);
1283 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1284 mono_mb_emit_byte (mb, CEE_ADD);
1285 mono_mb_emit_byte (mb, CEE_LDIND_I);
1286 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1287 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1288 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1289 pos = mono_mb_emit_branch (mb, branch_code);
1294 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1297 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1298 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1299 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1300 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1301 mono_mb_emit_icon (mb, -1);
1302 pos = mono_mb_emit_branch (mb, branch_code);
1307 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1309 // get function pointer from 1st arg, the COM interface pointer
1310 mono_mb_emit_ldarg (mb, 0);
1311 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1312 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1314 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1315 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1316 mono_mb_emit_calli (mb, sig);
1317 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1318 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1322 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1324 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1328 mono_type_to_ldind (MonoType *type)
1334 switch (type->type) {
1336 return CEE_LDIND_I1;
1338 case MONO_TYPE_BOOLEAN:
1339 return CEE_LDIND_U1;
1341 return CEE_LDIND_I2;
1343 case MONO_TYPE_CHAR:
1344 return CEE_LDIND_U2;
1346 return CEE_LDIND_I4;
1348 return CEE_LDIND_U4;
1352 case MONO_TYPE_FNPTR:
1354 case MONO_TYPE_CLASS:
1355 case MONO_TYPE_STRING:
1356 case MONO_TYPE_OBJECT:
1357 case MONO_TYPE_SZARRAY:
1358 case MONO_TYPE_ARRAY:
1359 return CEE_LDIND_REF;
1362 return CEE_LDIND_I8;
1364 return CEE_LDIND_R4;
1366 return CEE_LDIND_R8;
1367 case MONO_TYPE_VALUETYPE:
1368 if (type->data.klass->enumtype) {
1369 type = type->data.klass->enum_basetype;
1373 case MONO_TYPE_TYPEDBYREF:
1375 case MONO_TYPE_GENERICINST:
1376 type = &type->data.generic_class->container_class->byval_arg;
1379 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1385 mono_type_to_stind (MonoType *type)
1391 switch (type->type) {
1394 case MONO_TYPE_BOOLEAN:
1395 return CEE_STIND_I1;
1398 case MONO_TYPE_CHAR:
1399 return CEE_STIND_I2;
1402 return CEE_STIND_I4;
1406 case MONO_TYPE_FNPTR:
1408 case MONO_TYPE_CLASS:
1409 case MONO_TYPE_STRING:
1410 case MONO_TYPE_OBJECT:
1411 case MONO_TYPE_SZARRAY:
1412 case MONO_TYPE_ARRAY:
1413 return CEE_STIND_REF;
1416 return CEE_STIND_I8;
1418 return CEE_STIND_R4;
1420 return CEE_STIND_R8;
1421 case MONO_TYPE_VALUETYPE:
1422 if (type->data.klass->enumtype) {
1423 type = type->data.klass->enum_basetype;
1427 case MONO_TYPE_TYPEDBYREF:
1429 case MONO_TYPE_GENERICINST:
1430 type = &type->data.generic_class->container_class->byval_arg;
1433 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1439 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1442 case MONO_MARSHAL_CONV_BOOL_I4:
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_ldloc (mb, 0);
1445 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1446 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1447 mono_mb_emit_byte (mb, 3);
1448 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1449 mono_mb_emit_byte (mb, CEE_BR_S);
1450 mono_mb_emit_byte (mb, 1);
1451 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1452 mono_mb_emit_byte (mb, CEE_STIND_I1);
1454 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1455 mono_mb_emit_ldloc (mb, 1);
1456 mono_mb_emit_ldloc (mb, 0);
1457 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1458 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1459 mono_mb_emit_byte (mb, 3);
1460 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1461 mono_mb_emit_byte (mb, CEE_BR_S);
1462 mono_mb_emit_byte (mb, 1);
1463 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1464 mono_mb_emit_byte (mb, CEE_STIND_I1);
1466 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1467 MonoClass *eklass = NULL;
1470 if (type->type == MONO_TYPE_SZARRAY) {
1471 eklass = type->data.klass;
1473 g_assert_not_reached ();
1476 esize = mono_class_native_size (eklass, NULL);
1478 /* create a new array */
1479 mono_mb_emit_ldloc (mb, 1);
1480 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1481 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1482 mono_mb_emit_byte (mb, CEE_STIND_I);
1484 if (eklass->blittable) {
1485 /* copy the elements */
1486 mono_mb_emit_ldloc (mb, 1);
1487 mono_mb_emit_byte (mb, CEE_LDIND_I);
1488 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1489 mono_mb_emit_byte (mb, CEE_ADD);
1490 mono_mb_emit_ldloc (mb, 0);
1491 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1492 mono_mb_emit_byte (mb, CEE_PREFIX1);
1493 mono_mb_emit_byte (mb, CEE_CPBLK);
1496 int array_var, src_var, dst_var, index_var;
1497 guint32 label2, label3;
1499 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1500 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1501 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1504 mono_mb_emit_ldloc (mb, 1);
1505 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1506 mono_mb_emit_stloc (mb, array_var);
1508 /* save the old src pointer */
1509 mono_mb_emit_ldloc (mb, 0);
1510 mono_mb_emit_stloc (mb, src_var);
1511 /* save the old dst pointer */
1512 mono_mb_emit_ldloc (mb, 1);
1513 mono_mb_emit_stloc (mb, dst_var);
1515 /* Emit marshalling loop */
1516 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1517 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1518 mono_mb_emit_stloc (mb, index_var);
1521 label2 = mono_mb_get_label (mb);
1522 mono_mb_emit_ldloc (mb, index_var);
1523 mono_mb_emit_ldloc (mb, array_var);
1524 mono_mb_emit_byte (mb, CEE_LDLEN);
1525 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1527 /* src is already set */
1530 mono_mb_emit_ldloc (mb, array_var);
1531 mono_mb_emit_ldloc (mb, index_var);
1532 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1533 mono_mb_emit_stloc (mb, 1);
1535 /* Do the conversion */
1536 emit_struct_conv (mb, eklass, TRUE);
1539 mono_mb_emit_add_to_local (mb, index_var, 1);
1541 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1543 mono_mb_patch_branch (mb, label3);
1545 /* restore the old src pointer */
1546 mono_mb_emit_ldloc (mb, src_var);
1547 mono_mb_emit_stloc (mb, 0);
1548 /* restore the old dst pointer */
1549 mono_mb_emit_ldloc (mb, dst_var);
1550 mono_mb_emit_stloc (mb, 1);
1554 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1555 MonoClass *eclass = mono_defaults.char_class;
1557 /* create a new array */
1558 mono_mb_emit_ldloc (mb, 1);
1559 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1560 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1561 mono_mb_emit_byte (mb, CEE_STIND_REF);
1563 mono_mb_emit_ldloc (mb, 1);
1564 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1565 mono_mb_emit_ldloc (mb, 0);
1566 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1567 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1568 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1571 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1572 mono_mb_emit_ldloc (mb, 1);
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1575 mono_mb_emit_byte (mb, CEE_STIND_REF);
1577 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1578 mono_mb_emit_ldloc (mb, 1);
1579 mono_mb_emit_ldloc (mb, 0);
1580 mono_mb_emit_icall (mb, mono_string_from_utf16);
1581 mono_mb_emit_byte (mb, CEE_STIND_REF);
1583 case MONO_MARSHAL_CONV_STR_LPTSTR:
1584 mono_mb_emit_ldloc (mb, 1);
1585 mono_mb_emit_ldloc (mb, 0);
1586 mono_mb_emit_byte (mb, CEE_LDIND_I);
1587 #ifdef PLATFORM_WIN32
1588 mono_mb_emit_icall (mb, mono_string_from_utf16);
1590 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1592 mono_mb_emit_byte (mb, CEE_STIND_REF);
1594 case MONO_MARSHAL_CONV_STR_LPSTR:
1595 mono_mb_emit_ldloc (mb, 1);
1596 mono_mb_emit_ldloc (mb, 0);
1597 mono_mb_emit_byte (mb, CEE_LDIND_I);
1598 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1599 mono_mb_emit_byte (mb, CEE_STIND_REF);
1601 case MONO_MARSHAL_CONV_STR_LPWSTR:
1602 mono_mb_emit_ldloc (mb, 1);
1603 mono_mb_emit_ldloc (mb, 0);
1604 mono_mb_emit_byte (mb, CEE_LDIND_I);
1605 mono_mb_emit_icall (mb, mono_string_from_utf16);
1606 mono_mb_emit_byte (mb, CEE_STIND_REF);
1608 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1609 MonoClass *klass = mono_class_from_mono_type (type);
1610 int src_var, dst_var;
1612 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1613 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1615 /* *dst = new object */
1616 mono_mb_emit_ldloc (mb, 1);
1617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1618 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1619 mono_mb_emit_byte (mb, CEE_STIND_REF);
1621 /* save the old src pointer */
1622 mono_mb_emit_ldloc (mb, 0);
1623 mono_mb_emit_stloc (mb, src_var);
1624 /* save the old dst pointer */
1625 mono_mb_emit_ldloc (mb, 1);
1626 mono_mb_emit_stloc (mb, dst_var);
1628 /* dst = pointer to newly created object data */
1629 mono_mb_emit_ldloc (mb, 1);
1630 mono_mb_emit_byte (mb, CEE_LDIND_I);
1631 mono_mb_emit_icon (mb, sizeof (MonoObject));
1632 mono_mb_emit_byte (mb, CEE_ADD);
1633 mono_mb_emit_stloc (mb, 1);
1635 emit_struct_conv (mb, klass, TRUE);
1637 /* restore the old src pointer */
1638 mono_mb_emit_ldloc (mb, src_var);
1639 mono_mb_emit_stloc (mb, 0);
1640 /* restore the old dst pointer */
1641 mono_mb_emit_ldloc (mb, dst_var);
1642 mono_mb_emit_stloc (mb, 1);
1645 case MONO_MARSHAL_CONV_DEL_FTN: {
1646 MonoClass *klass = mono_class_from_mono_type (type);
1648 mono_mb_emit_ldloc (mb, 1);
1649 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1650 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1651 mono_mb_emit_ldloc (mb, 0);
1652 mono_mb_emit_byte (mb, CEE_LDIND_I);
1653 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1654 mono_mb_emit_byte (mb, CEE_STIND_REF);
1657 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1658 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1660 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1661 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1662 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1663 static MonoClass* com_interop_proxy_class = NULL;
1664 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1665 static MonoMethod* get_transparent_proxy = NULL;
1667 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1668 MonoClass *klass = NULL;
1670 /* COM types are initialized lazily */
1671 mono_init_com_types ();
1673 klass = mono_class_from_mono_type (type);
1675 mono_mb_emit_ldloc (mb, 1);
1676 mono_mb_emit_byte (mb, CEE_LDNULL);
1677 mono_mb_emit_byte (mb, CEE_STIND_REF);
1679 mono_mb_emit_ldloc (mb, 0);
1680 mono_mb_emit_byte (mb, CEE_LDIND_I);
1681 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1683 /* load dst to store later */
1684 mono_mb_emit_ldloc (mb, 1);
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_I);
1688 mono_mb_emit_icon (mb, TRUE);
1689 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1690 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1692 if (!com_interop_proxy_class)
1693 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1694 if (!com_interop_proxy_get_proxy)
1695 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1696 if (!get_transparent_proxy)
1697 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1699 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1701 mono_mb_emit_ldloc (mb, 0);
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1704 mono_mb_emit_icall (mb, type_from_handle);
1705 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1706 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1707 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1709 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1711 mono_mb_emit_byte (mb, CEE_STIND_REF);
1712 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1714 /* is already managed object */
1715 mono_mb_patch_short_branch (mb, pos_ccw);
1716 mono_mb_emit_ldloc (mb, 0);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_icon (mb, TRUE);
1719 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1721 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1723 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1725 mono_mb_emit_byte (mb, CEE_STIND_REF);
1727 mono_mb_patch_short_branch (mb, pos_end);
1729 mono_mb_patch_short_branch (mb, pos_null);
1733 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1735 * Passing SafeHandles as ref does not allow the unmanaged code
1736 * to change the SafeHandle value. If the value is changed,
1737 * we should issue a diagnostic exception (NotSupportedException)
1738 * that informs the user that changes to handles in unmanaged code
1741 * Since we currently have no access to the original
1742 * SafeHandle that was used during the marshalling,
1743 * for now we just ignore this, and ignore/discard any
1744 * changes that might have happened to the handle.
1749 case MONO_MARSHAL_CONV_HANDLEREF: {
1751 * Passing HandleRefs in a struct that is ref()ed does not
1752 * copy the values back to the HandleRef
1757 case MONO_MARSHAL_CONV_STR_BSTR:
1758 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1759 case MONO_MARSHAL_CONV_STR_TBSTR:
1760 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1762 g_warning ("marshaling conversion %d not implemented", conv);
1763 g_assert_not_reached ();
1768 conv_to_icall (MonoMarshalConv conv)
1771 case MONO_MARSHAL_CONV_STR_LPWSTR:
1772 return mono_marshal_string_to_utf16;
1773 case MONO_MARSHAL_CONV_LPWSTR_STR:
1774 return mono_string_from_utf16;
1775 case MONO_MARSHAL_CONV_LPSTR_STR:
1776 return mono_string_new_wrapper;
1777 case MONO_MARSHAL_CONV_STR_LPTSTR:
1778 #ifdef PLATFORM_WIN32
1779 return mono_marshal_string_to_utf16;
1781 return mono_string_to_lpstr;
1783 case MONO_MARSHAL_CONV_STR_LPSTR:
1784 return mono_string_to_lpstr;
1785 case MONO_MARSHAL_CONV_STR_BSTR:
1786 return mono_string_to_bstr;
1787 case MONO_MARSHAL_CONV_BSTR_STR:
1788 return mono_string_from_bstr;
1789 case MONO_MARSHAL_CONV_STR_TBSTR:
1790 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1791 return mono_string_to_ansibstr;
1792 case MONO_MARSHAL_CONV_SB_LPSTR:
1793 return mono_string_builder_to_utf8;
1794 case MONO_MARSHAL_CONV_SB_LPTSTR:
1795 #ifdef PLATFORM_WIN32
1796 return mono_string_builder_to_utf16;
1798 return mono_string_builder_to_utf8;
1800 case MONO_MARSHAL_CONV_SB_LPWSTR:
1801 return mono_string_builder_to_utf16;
1802 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1803 return mono_array_to_savearray;
1804 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1805 return mono_array_to_lparray;
1806 case MONO_MARSHAL_CONV_DEL_FTN:
1807 return mono_delegate_to_ftnptr;
1808 case MONO_MARSHAL_CONV_FTN_DEL:
1809 return mono_ftnptr_to_delegate;
1810 case MONO_MARSHAL_CONV_LPSTR_SB:
1811 return mono_string_utf8_to_builder;
1812 case MONO_MARSHAL_CONV_LPTSTR_SB:
1813 #ifdef PLATFORM_WIN32
1814 return mono_string_utf16_to_builder;
1816 return mono_string_utf8_to_builder;
1818 case MONO_MARSHAL_CONV_LPWSTR_SB:
1819 return mono_string_utf16_to_builder;
1820 case MONO_MARSHAL_FREE_ARRAY:
1821 return mono_marshal_free_array;
1822 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1823 return mono_string_to_byvalstr;
1824 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1825 return mono_string_to_byvalwstr;
1827 g_assert_not_reached ();
1834 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1839 case MONO_MARSHAL_CONV_BOOL_I4:
1840 mono_mb_emit_ldloc (mb, 1);
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1843 mono_mb_emit_byte (mb, CEE_STIND_I4);
1845 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1846 mono_mb_emit_ldloc (mb, 1);
1847 mono_mb_emit_ldloc (mb, 0);
1848 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1849 mono_mb_emit_byte (mb, CEE_NEG);
1850 mono_mb_emit_byte (mb, CEE_STIND_I2);
1852 case MONO_MARSHAL_CONV_STR_LPWSTR:
1853 case MONO_MARSHAL_CONV_STR_LPSTR:
1854 case MONO_MARSHAL_CONV_STR_LPTSTR:
1855 case MONO_MARSHAL_CONV_STR_BSTR:
1856 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1857 case MONO_MARSHAL_CONV_STR_TBSTR: {
1860 /* free space if free == true */
1861 mono_mb_emit_ldloc (mb, 2);
1862 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1863 mono_mb_emit_ldloc (mb, 1);
1864 mono_mb_emit_byte (mb, CEE_LDIND_I);
1865 mono_mb_emit_icall (mb, g_free);
1866 mono_mb_patch_short_branch (mb, pos);
1868 mono_mb_emit_ldloc (mb, 1);
1869 mono_mb_emit_ldloc (mb, 0);
1870 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1871 mono_mb_emit_icall (mb, conv_to_icall (conv));
1872 mono_mb_emit_byte (mb, CEE_STIND_I);
1875 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1876 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1877 case MONO_MARSHAL_CONV_DEL_FTN:
1878 mono_mb_emit_ldloc (mb, 1);
1879 mono_mb_emit_ldloc (mb, 0);
1880 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1881 mono_mb_emit_icall (mb, conv_to_icall (conv));
1882 mono_mb_emit_byte (mb, CEE_STIND_I);
1884 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1885 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1888 mono_mb_emit_ldloc (mb, 1); /* dst */
1889 mono_mb_emit_ldloc (mb, 0);
1890 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1891 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1892 mono_mb_emit_icall (mb, conv_to_icall (conv));
1895 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1896 MonoClass *eklass = NULL;
1899 if (type->type == MONO_TYPE_SZARRAY) {
1900 eklass = type->data.klass;
1902 g_assert_not_reached ();
1905 if (eklass->valuetype)
1906 esize = mono_class_native_size (eklass, NULL);
1908 esize = sizeof (gpointer);
1910 mono_mb_emit_ldloc (mb, 0);
1911 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1912 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1914 if (eklass->blittable) {
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_ldloc (mb, 0);
1917 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1918 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1919 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1920 mono_mb_emit_byte (mb, CEE_PREFIX1);
1921 mono_mb_emit_byte (mb, CEE_CPBLK);
1923 int array_var, src_var, dst_var, index_var;
1924 guint32 label2, label3;
1926 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1927 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1928 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1931 mono_mb_emit_ldloc (mb, 0);
1932 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1933 mono_mb_emit_stloc (mb, array_var);
1935 /* save the old src pointer */
1936 mono_mb_emit_ldloc (mb, 0);
1937 mono_mb_emit_stloc (mb, src_var);
1938 /* save the old dst pointer */
1939 mono_mb_emit_ldloc (mb, 1);
1940 mono_mb_emit_stloc (mb, dst_var);
1942 /* Emit marshalling loop */
1943 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1944 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1945 mono_mb_emit_stloc (mb, index_var);
1948 label2 = mono_mb_get_label (mb);
1949 mono_mb_emit_ldloc (mb, index_var);
1950 mono_mb_emit_ldloc (mb, array_var);
1951 mono_mb_emit_byte (mb, CEE_LDLEN);
1952 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1955 mono_mb_emit_ldloc (mb, array_var);
1956 mono_mb_emit_ldloc (mb, index_var);
1957 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1958 mono_mb_emit_stloc (mb, 0);
1960 /* dst is already set */
1962 /* Do the conversion */
1963 emit_struct_conv (mb, eklass, FALSE);
1966 mono_mb_emit_add_to_local (mb, index_var, 1);
1968 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1970 mono_mb_patch_branch (mb, label3);
1972 /* restore the old src pointer */
1973 mono_mb_emit_ldloc (mb, src_var);
1974 mono_mb_emit_stloc (mb, 0);
1975 /* restore the old dst pointer */
1976 mono_mb_emit_ldloc (mb, dst_var);
1977 mono_mb_emit_stloc (mb, 1);
1980 mono_mb_patch_branch (mb, pos);
1983 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1984 mono_mb_emit_ldloc (mb, 0);
1985 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1986 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1988 mono_mb_emit_ldloc (mb, 1);
1989 mono_mb_emit_ldloc (mb, 0);
1990 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1991 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1992 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1993 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1994 mono_mb_patch_short_branch (mb, pos);
1997 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1998 int src_var, dst_var;
2000 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2001 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2003 mono_mb_emit_ldloc (mb, 0);
2004 mono_mb_emit_byte (mb, CEE_LDIND_I);
2005 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2007 /* save the old src pointer */
2008 mono_mb_emit_ldloc (mb, 0);
2009 mono_mb_emit_stloc (mb, src_var);
2010 /* save the old dst pointer */
2011 mono_mb_emit_ldloc (mb, 1);
2012 mono_mb_emit_stloc (mb, dst_var);
2014 /* src = pointer to object data */
2015 mono_mb_emit_ldloc (mb, 0);
2016 mono_mb_emit_byte (mb, CEE_LDIND_I);
2017 mono_mb_emit_icon (mb, sizeof (MonoObject));
2018 mono_mb_emit_byte (mb, CEE_ADD);
2019 mono_mb_emit_stloc (mb, 0);
2021 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2023 /* restore the old src pointer */
2024 mono_mb_emit_ldloc (mb, src_var);
2025 mono_mb_emit_stloc (mb, 0);
2026 /* restore the old dst pointer */
2027 mono_mb_emit_ldloc (mb, dst_var);
2028 mono_mb_emit_stloc (mb, 1);
2030 mono_mb_patch_branch (mb, pos);
2033 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2034 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2035 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2036 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2038 /* COM types are initialized lazily */
2039 mono_init_com_types ();
2042 mono_mb_emit_ldloc (mb, 1);
2043 mono_mb_emit_icon (mb, 0);
2044 mono_mb_emit_byte (mb, CEE_CONV_U);
2045 mono_mb_emit_byte (mb, CEE_STIND_I);
2047 mono_mb_emit_ldloc (mb, 0);
2048 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2050 // if null just break, dst was already inited to 0
2051 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2053 mono_mb_emit_ldloc (mb, 0);
2054 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2055 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2056 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2058 // load dst to store later
2059 mono_mb_emit_ldloc (mb, 1);
2062 mono_mb_emit_ldloc (mb, 0);
2063 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2064 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2065 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2067 /* load the RCW from the ComInteropProxy*/
2068 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2069 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2071 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2072 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2073 mono_mb_emit_icon (mb, TRUE);
2074 mono_mb_emit_icall (mb, cominterop_get_interface);
2077 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2078 static MonoProperty* iunknown = NULL;
2081 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2082 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2084 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2085 static MonoProperty* idispatch = NULL;
2088 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2089 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2092 g_assert_not_reached ();
2094 mono_mb_emit_byte (mb, CEE_STIND_I);
2095 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2098 mono_mb_patch_short_branch (mb, pos_rcw);
2099 /* load dst to store later */
2100 mono_mb_emit_ldloc (mb, 1);
2102 mono_mb_emit_ldloc (mb, 0);
2103 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2105 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2106 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2107 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2108 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2109 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2110 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2112 g_assert_not_reached ();
2113 mono_mb_emit_icall (mb, cominterop_get_ccw);
2114 mono_mb_emit_byte (mb, CEE_STIND_I);
2116 mono_mb_patch_short_branch (mb, pos_end);
2117 mono_mb_patch_short_branch (mb, pos_null);
2121 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2122 int dar_release_slot, pos;
2124 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2127 * The following is ifdefed-out, because I have no way of doing the
2128 * DangerousRelease when destroying the structure
2131 /* set release = false */
2132 mono_mb_emit_icon (mb, 0);
2133 mono_mb_emit_stloc (mb, dar_release_slot);
2134 if (!sh_dangerous_add_ref)
2135 init_safe_handle ();
2137 /* safehandle.DangerousAddRef (ref release) */
2138 mono_mb_emit_ldloc (mb, 0); /* the source */
2139 mono_mb_emit_byte (mb, CEE_LDIND_I);
2140 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2141 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2143 mono_mb_emit_ldloc (mb, 0);
2144 mono_mb_emit_byte (mb, CEE_LDIND_I);
2145 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2146 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2147 mono_mb_patch_branch (mb, pos);
2149 /* Pull the handle field from SafeHandle */
2150 mono_mb_emit_ldloc (mb, 1);
2151 mono_mb_emit_ldloc (mb, 0);
2152 mono_mb_emit_byte (mb, CEE_LDIND_I);
2153 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2154 mono_mb_emit_byte (mb, CEE_LDIND_I);
2155 mono_mb_emit_byte (mb, CEE_STIND_I);
2159 case MONO_MARSHAL_CONV_HANDLEREF: {
2160 mono_mb_emit_ldloc (mb, 1);
2161 mono_mb_emit_ldloc (mb, 0);
2162 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2163 mono_mb_emit_byte (mb, CEE_ADD);
2164 mono_mb_emit_byte (mb, CEE_LDIND_I);
2165 mono_mb_emit_byte (mb, CEE_STIND_I);
2170 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2171 MonoException *exc = mono_get_exception_not_implemented (msg);
2174 mono_raise_exception (exc);
2180 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2182 MonoMarshalType *info;
2186 emit_struct_conv(mb, klass->parent, to_object);
2188 info = mono_marshal_load_type_info (klass);
2190 if (info->native_size == 0)
2193 if (klass->blittable) {
2194 int msize = mono_class_value_size (klass, NULL);
2195 g_assert (msize == info->native_size);
2196 mono_mb_emit_ldloc (mb, 1);
2197 mono_mb_emit_ldloc (mb, 0);
2198 mono_mb_emit_icon (mb, msize);
2199 mono_mb_emit_byte (mb, CEE_PREFIX1);
2200 mono_mb_emit_byte (mb, CEE_CPBLK);
2202 mono_mb_emit_add_to_local (mb, 0, msize);
2203 mono_mb_emit_add_to_local (mb, 1, msize);
2207 for (i = 0; i < info->num_fields; i++) {
2208 MonoMarshalNative ntype;
2209 MonoMarshalConv conv;
2210 MonoType *ftype = info->fields [i].field->type;
2213 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2215 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2218 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2221 msize = klass->instance_size - info->fields [i].field->offset;
2222 usize = info->native_size - info->fields [i].offset;
2224 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2225 usize = info->fields [i + 1].offset - info->fields [i].offset;
2228 if (klass != mono_defaults.safehandle_class){
2230 * FIXME: Should really check for usize==0 and msize>0, but we apply
2231 * the layout to the managed structure as well.
2234 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2235 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2236 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2237 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2238 "reference field at the same offset as another field.",
2239 mono_type_full_name (&klass->byval_arg));
2242 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2243 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2244 mono_type_full_name (&klass->byval_arg));
2249 case MONO_MARSHAL_CONV_NONE: {
2252 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2253 ftype->type == MONO_TYPE_U) {
2254 mono_mb_emit_ldloc (mb, 1);
2255 mono_mb_emit_ldloc (mb, 0);
2256 mono_mb_emit_byte (mb, CEE_LDIND_I);
2257 mono_mb_emit_byte (mb, CEE_STIND_I);
2268 case MONO_TYPE_BOOLEAN:
2271 case MONO_TYPE_CHAR:
2277 mono_mb_emit_ldloc (mb, 1);
2278 mono_mb_emit_ldloc (mb, 0);
2279 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2280 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2282 case MONO_TYPE_VALUETYPE: {
2283 int src_var, dst_var;
2285 if (ftype->data.klass->enumtype) {
2286 ftype = ftype->data.klass->enum_basetype;
2290 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2291 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2293 /* save the old src pointer */
2294 mono_mb_emit_ldloc (mb, 0);
2295 mono_mb_emit_stloc (mb, src_var);
2296 /* save the old dst pointer */
2297 mono_mb_emit_ldloc (mb, 1);
2298 mono_mb_emit_stloc (mb, dst_var);
2300 emit_struct_conv (mb, ftype->data.klass, to_object);
2302 /* restore the old src pointer */
2303 mono_mb_emit_ldloc (mb, src_var);
2304 mono_mb_emit_stloc (mb, 0);
2305 /* restore the old dst pointer */
2306 mono_mb_emit_ldloc (mb, dst_var);
2307 mono_mb_emit_stloc (mb, 1);
2310 case MONO_TYPE_OBJECT: {
2311 mono_init_com_types ();
2313 static MonoMethod *variant_clear = NULL;
2314 static MonoMethod *get_object_for_native_variant = NULL;
2317 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2318 if (!get_object_for_native_variant)
2319 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2320 mono_mb_emit_ldloc (mb, 1);
2321 mono_mb_emit_ldloc (mb, 0);
2322 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2323 mono_mb_emit_byte (mb, CEE_STIND_REF);
2325 mono_mb_emit_ldloc (mb, 0);
2326 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2329 static MonoMethod *get_native_variant_for_object = NULL;
2331 if (!get_native_variant_for_object)
2332 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2334 mono_mb_emit_ldloc (mb, 0);
2335 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2336 mono_mb_emit_ldloc (mb, 1);
2337 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2343 g_warning ("marshaling type %02x not implemented", ftype->type);
2344 g_assert_not_reached ();
2349 int src_var, dst_var;
2351 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2352 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2354 /* save the old src pointer */
2355 mono_mb_emit_ldloc (mb, 0);
2356 mono_mb_emit_stloc (mb, src_var);
2357 /* save the old dst pointer */
2358 mono_mb_emit_ldloc (mb, 1);
2359 mono_mb_emit_stloc (mb, dst_var);
2362 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2364 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2366 /* restore the old src pointer */
2367 mono_mb_emit_ldloc (mb, src_var);
2368 mono_mb_emit_stloc (mb, 0);
2369 /* restore the old dst pointer */
2370 mono_mb_emit_ldloc (mb, dst_var);
2371 mono_mb_emit_stloc (mb, 1);
2376 mono_mb_emit_add_to_local (mb, 0, usize);
2377 mono_mb_emit_add_to_local (mb, 1, msize);
2379 mono_mb_emit_add_to_local (mb, 0, msize);
2380 mono_mb_emit_add_to_local (mb, 1, usize);
2386 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2388 /* Call DestroyStructure */
2389 /* FIXME: Only do this if needed */
2390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2391 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2392 mono_mb_emit_ldloc (mb, struct_var);
2393 mono_mb_emit_icall (mb, mono_struct_delete_old);
2397 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2401 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2402 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2403 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2405 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2406 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2408 mono_mb_emit_icall (mb, checkpoint_func);
2410 mono_mb_patch_branch (mb, pos_noabort);
2414 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2416 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2419 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2423 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2425 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2428 static MonoAsyncResult *
2429 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2431 MonoMethodMessage *msg;
2432 MonoDelegate *async_callback;
2436 MonoMethod *method = NULL, *method2 = NULL;
2438 g_assert (delegate);
2440 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2442 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2443 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2445 /* If the target is a proxy, make a direct call. Is proxy's work
2446 // to make the call asynchronous.
2448 MonoAsyncResult *ares;
2450 MonoArray *out_args;
2452 method = delegate->method;
2454 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2455 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2456 g_assert(handle != NULL);
2457 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2458 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2459 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2460 MONO_OBJECT_SETREF (msg, async_result, ares);
2461 msg->call_type = CallType_BeginInvoke;
2463 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2468 klass = delegate->object.vtable->klass;
2470 method = mono_get_delegate_invoke (klass);
2471 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2474 g_assert (method != NULL);
2476 im = mono_get_delegate_invoke (method->klass);
2477 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2479 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2483 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2485 int i, params_var, tmp_var;
2487 /* allocate local (pointer) *params[] */
2488 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2489 /* allocate local (pointer) tmp */
2490 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2492 /* alloate space on stack to store an array of pointers to the arguments */
2493 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2494 mono_mb_emit_byte (mb, CEE_PREFIX1);
2495 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2496 mono_mb_emit_stloc (mb, params_var);
2499 mono_mb_emit_ldloc (mb, params_var);
2500 mono_mb_emit_stloc (mb, tmp_var);
2502 if (save_this && sig->hasthis) {
2503 mono_mb_emit_ldloc (mb, tmp_var);
2504 mono_mb_emit_ldarg_addr (mb, 0);
2505 mono_mb_emit_byte (mb, CEE_STIND_I);
2506 /* tmp = tmp + sizeof (gpointer) */
2507 if (sig->param_count)
2508 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2512 for (i = 0; i < sig->param_count; i++) {
2513 mono_mb_emit_ldloc (mb, tmp_var);
2514 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2515 mono_mb_emit_byte (mb, CEE_STIND_I);
2516 /* tmp = tmp + sizeof (gpointer) */
2517 if (i < (sig->param_count - 1))
2518 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2525 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2529 GString *res = g_string_new ("");
2532 g_string_append (res, prefix);
2533 g_string_append_c (res, '_');
2536 mono_type_get_desc (res, sig->ret, FALSE);
2538 for (i = 0; i < sig->param_count; ++i) {
2539 g_string_append_c (res, '_');
2540 mono_type_get_desc (res, sig->params [i], FALSE);
2543 g_string_free (res, FALSE);
2548 * mono_marshal_get_string_encoding:
2550 * Return the string encoding which should be used for a given parameter.
2552 static MonoMarshalNative
2553 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2555 /* First try the parameter marshal info */
2557 if (spec->native == MONO_NATIVE_LPARRAY) {
2558 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2559 return spec->data.array_data.elem_type;
2562 return spec->native;
2566 return MONO_NATIVE_LPSTR;
2568 /* Then try the method level marshal info */
2569 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2570 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2571 return MONO_NATIVE_LPSTR;
2572 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2573 return MONO_NATIVE_LPWSTR;
2574 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2575 #ifdef PLATFORM_WIN32
2576 return MONO_NATIVE_LPWSTR;
2578 return MONO_NATIVE_LPSTR;
2581 return MONO_NATIVE_LPSTR;
2585 static MonoMarshalConv
2586 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2588 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2591 case MONO_NATIVE_LPWSTR:
2592 return MONO_MARSHAL_CONV_STR_LPWSTR;
2593 case MONO_NATIVE_LPSTR:
2594 return MONO_MARSHAL_CONV_STR_LPSTR;
2595 case MONO_NATIVE_LPTSTR:
2596 return MONO_MARSHAL_CONV_STR_LPTSTR;
2597 case MONO_NATIVE_BSTR:
2598 return MONO_MARSHAL_CONV_STR_BSTR;
2604 static MonoMarshalConv
2605 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2607 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2610 case MONO_NATIVE_LPWSTR:
2611 return MONO_MARSHAL_CONV_SB_LPWSTR;
2613 case MONO_NATIVE_LPSTR:
2614 return MONO_MARSHAL_CONV_SB_LPSTR;
2616 case MONO_NATIVE_LPTSTR:
2617 return MONO_MARSHAL_CONV_SB_LPTSTR;
2624 static MonoMarshalConv
2625 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2627 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2632 case MONO_NATIVE_LPWSTR:
2634 return MONO_MARSHAL_CONV_LPWSTR_STR;
2635 case MONO_NATIVE_LPSTR:
2636 return MONO_MARSHAL_CONV_LPSTR_STR;
2637 case MONO_NATIVE_LPTSTR:
2638 return MONO_MARSHAL_CONV_LPTSTR_STR;
2639 case MONO_NATIVE_BSTR:
2640 return MONO_MARSHAL_CONV_BSTR_STR;
2646 static MonoMarshalConv
2647 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2649 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2654 case MONO_NATIVE_LPWSTR:
2656 * mono_string_builder_to_utf16 does not allocate a
2657 * new buffer, so no need to free it.
2660 return MONO_MARSHAL_CONV_LPWSTR_SB;
2661 case MONO_NATIVE_LPSTR:
2662 return MONO_MARSHAL_CONV_LPSTR_SB;
2664 case MONO_NATIVE_LPTSTR:
2665 return MONO_MARSHAL_CONV_LPTSTR_SB;
2673 * Return whenever a field of a native structure or an array member needs to
2677 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2679 MonoMarshalNative encoding;
2680 MonoMarshalConv conv;
2683 case MONO_TYPE_VALUETYPE:
2684 /* FIXME: Optimize this */
2686 case MONO_TYPE_OBJECT:
2687 case MONO_TYPE_CLASS:
2688 if (t->data.klass == mono_defaults.stringbuilder_class) {
2690 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2694 case MONO_TYPE_STRING:
2695 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2696 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2702 static inline MonoMethod*
2703 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2707 mono_marshal_lock ();
2708 res = g_hash_table_lookup (cache, key);
2709 mono_marshal_unlock ();
2713 /* Create the method from the builder and place it in the cache */
2714 static inline MonoMethod*
2715 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2716 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2721 mono_marshal_lock ();
2722 res = g_hash_table_lookup (cache, key);
2723 mono_marshal_unlock ();
2726 newm = mono_mb_create_method (mb, sig, max_stack);
2727 mono_marshal_lock ();
2728 res = g_hash_table_lookup (cache, key);
2731 g_hash_table_insert (cache, key, res);
2732 g_hash_table_insert (wrapper_hash, res, key);
2733 mono_marshal_unlock ();
2735 mono_marshal_unlock ();
2736 mono_free_method (newm);
2744 static inline MonoMethod*
2745 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2747 MonoMethod *res = NULL;
2748 MonoRemotingMethods *wrps;
2750 mono_marshal_lock ();
2751 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2754 switch (wrapper_type) {
2755 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2756 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2757 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2758 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2762 /* it is important to do the unlock after the load from wrps, since in
2763 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2764 * to take the loader lock and some other thread may set the fields.
2766 mono_marshal_unlock ();
2770 /* Create the method from the builder and place it in the cache */
2771 static inline MonoMethod*
2772 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2773 MonoMethodSignature *sig, int max_stack)
2775 MonoMethod **res = NULL;
2776 MonoRemotingMethods *wrps;
2777 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2779 mono_marshal_lock ();
2780 wrps = g_hash_table_lookup (cache, key);
2782 wrps = g_new0 (MonoRemotingMethods, 1);
2783 g_hash_table_insert (cache, key, wrps);
2786 switch (mb->method->wrapper_type) {
2787 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2788 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2789 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2790 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2791 default: g_assert_not_reached (); break;
2793 mono_marshal_unlock ();
2797 newm = mono_mb_create_method (mb, sig, max_stack);
2799 mono_marshal_lock ();
2802 g_hash_table_insert (wrapper_hash, *res, key);
2803 mono_marshal_unlock ();
2805 mono_marshal_unlock ();
2806 mono_free_method (newm);
2814 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2818 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2821 mono_marshal_lock ();
2822 res = g_hash_table_lookup (wrapper_hash, wrapper);
2823 mono_marshal_unlock ();
2828 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2830 MonoMethodSignature *sig;
2831 MonoMethodBuilder *mb;
2837 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2838 !strcmp (method->name, "BeginInvoke"));
2840 sig = signature_no_pinvoke (method);
2842 cache = method->klass->image->delegate_begin_invoke_cache;
2843 if ((res = mono_marshal_find_in_cache (cache, sig)))
2846 g_assert (sig->hasthis);
2848 name = mono_signature_to_name (sig, "begin_invoke");
2849 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2852 mb->method->save_lmf = 1;
2854 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2856 mono_mb_emit_ldarg (mb, 0);
2857 mono_mb_emit_ldloc (mb, params_var);
2858 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2859 emit_thread_interrupt_checkpoint (mb);
2860 mono_mb_emit_byte (mb, CEE_RET);
2862 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2868 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2870 MonoDomain *domain = mono_domain_get ();
2871 MonoAsyncResult *ares;
2872 MonoMethod *method = NULL;
2873 MonoMethodSignature *sig;
2874 MonoMethodMessage *msg;
2875 MonoObject *res, *exc;
2876 MonoArray *out_args;
2879 g_assert (delegate);
2881 if (!delegate->method_info) {
2882 g_assert (delegate->method);
2883 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2886 if (!delegate->method_info || !delegate->method_info->method)
2887 g_assert_not_reached ();
2889 klass = delegate->object.vtable->klass;
2891 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2892 g_assert (method != NULL);
2894 sig = signature_no_pinvoke (method);
2896 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2898 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2901 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
2902 mono_raise_exception (mono_get_exception_invalid_operation (
2903 "The IAsyncResult object provided does not match this delegate."));
2907 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2908 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2909 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2910 mono_message_init (domain, msg, delegate->method_info, NULL);
2911 msg->call_type = CallType_EndInvoke;
2912 MONO_OBJECT_SETREF (msg, async_result, ares);
2913 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2915 res = mono_thread_pool_finish (ares, &out_args, &exc);
2919 if (((MonoException*)exc)->stack_trace) {
2920 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2922 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2924 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2927 mono_raise_exception ((MonoException*)exc);
2930 mono_method_return_message_restore (method, params, out_args);
2935 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2937 MonoType *t = mono_type_get_underlying_type (return_type);
2939 if (return_type->byref)
2940 return_type = &mono_defaults.int_class->byval_arg;
2943 case MONO_TYPE_VOID:
2944 g_assert_not_reached ();
2947 case MONO_TYPE_STRING:
2948 case MONO_TYPE_CLASS:
2949 case MONO_TYPE_OBJECT:
2950 case MONO_TYPE_ARRAY:
2951 case MONO_TYPE_SZARRAY:
2955 case MONO_TYPE_BOOLEAN:
2958 case MONO_TYPE_CHAR:
2968 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2969 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2971 case MONO_TYPE_GENERICINST:
2972 if (!mono_type_generic_inst_is_valuetype (return_type))
2975 case MONO_TYPE_VALUETYPE: {
2976 MonoClass *klass = mono_class_from_mono_type (return_type);
2977 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2978 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2982 g_warning ("type 0x%x not handled", return_type->type);
2983 g_assert_not_reached ();
2986 mono_mb_emit_byte (mb, CEE_RET);
2990 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2992 MonoMethodSignature *sig;
2993 MonoMethodBuilder *mb;
2999 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3000 !strcmp (method->name, "EndInvoke"));
3002 sig = signature_no_pinvoke (method);
3004 cache = method->klass->image->delegate_end_invoke_cache;
3005 if ((res = mono_marshal_find_in_cache (cache, sig)))
3008 g_assert (sig->hasthis);
3010 name = mono_signature_to_name (sig, "end_invoke");
3011 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3014 mb->method->save_lmf = 1;
3016 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3018 mono_mb_emit_ldarg (mb, 0);
3019 mono_mb_emit_ldloc (mb, params_var);
3020 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3021 emit_thread_interrupt_checkpoint (mb);
3023 if (sig->ret->type == MONO_TYPE_VOID) {
3024 mono_mb_emit_byte (mb, CEE_POP);
3025 mono_mb_emit_byte (mb, CEE_RET);
3027 mono_mb_emit_restore_result (mb, sig->ret);
3029 res = mono_mb_create_and_cache (cache, sig,
3030 mb, sig, sig->param_count + 16);
3037 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3039 MonoMethodMessage *msg;
3040 MonoTransparentProxy *this;
3041 MonoObject *res, *exc;
3042 MonoArray *out_args;
3044 this = *((MonoTransparentProxy **)params [0]);
3047 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3049 /* skip the this pointer */
3052 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3055 MonoMethodSignature *sig = mono_method_signature (method);
3056 int count = sig->param_count;
3057 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3059 for (i=0; i<count; i++) {
3060 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3061 if (class->valuetype) {
3062 if (sig->params [i]->byref)
3063 mparams[i] = *((gpointer *)params [i]);
3065 mparams[i] = params [i];
3067 mparams[i] = *((gpointer**)params [i]);
3071 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3074 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3076 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3079 mono_raise_exception ((MonoException *)exc);
3081 mono_method_return_message_restore (method, params, out_args);
3087 * cominterop_get_native_wrapper_adjusted:
3088 * @method: managed COM Interop method
3090 * Returns: the generated method to call with signature matching
3091 * the unmanaged COM Method signature
3094 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3097 MonoMethodBuilder *mb_native;
3098 MonoMarshalSpec **mspecs;
3099 MonoMethodSignature *sig, *sig_native;
3100 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3103 sig = mono_method_signature (method);
3105 // create unmanaged wrapper
3106 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3107 sig_native = cominterop_method_signature (method);
3109 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3110 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3112 mono_method_get_marshal_info (method, mspecs);
3114 // move managed args up one
3115 for (i = sig->param_count; i >= 1; i--)
3116 mspecs[i+1] = mspecs[i];
3118 // first arg is IntPtr for interface
3121 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3122 // move return spec to last param
3123 if (!MONO_TYPE_IS_VOID (sig->ret))
3124 mspecs[sig_native->param_count] = mspecs[0];
3129 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, TRUE);
3131 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3133 mono_mb_free (mb_native);
3135 for (i = sig_native->param_count; i >= 0; i--)
3137 mono_metadata_free_marshal_spec (mspecs [i]);
3144 * cominterop_get_native_wrapper:
3145 * @method: managed method
3147 * Returns: the generated method to call
3150 cominterop_get_native_wrapper (MonoMethod *method)
3154 MonoMethodBuilder *mb;
3155 MonoMethodSignature *sig, *csig;
3159 cache = method->klass->image->cominterop_wrapper_cache;
3160 if ((res = mono_marshal_find_in_cache (cache, method)))
3163 mono_init_com_types ();
3165 sig = mono_method_signature (method);
3166 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3168 /* if method klass is import, that means method
3169 * is really a com call. let interop system emit it.
3171 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3172 /* FIXME: we have to call actual class .ctor
3173 * instead of just __ComObject .ctor.
3175 if (!strcmp(method->name, ".ctor")) {
3176 static MonoMethod *ctor = NULL;
3179 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3180 mono_mb_emit_ldarg (mb, 0);
3181 mono_mb_emit_managed_call (mb, ctor, NULL);
3182 mono_mb_emit_byte (mb, CEE_RET);
3185 static MonoMethod * ThrowExceptionForHR = NULL;
3186 MonoMethod *adjusted_method;
3190 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3192 // add local variables
3193 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3194 if (!MONO_TYPE_IS_VOID (sig->ret))
3195 retval = mono_mb_add_local (mb, sig->ret);
3197 // get the type for the interface the method is defined on
3198 // and then get the underlying COM interface for that type
3199 mono_mb_emit_ldarg (mb, 0);
3200 mono_mb_emit_ptr (mb, method);
3201 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3202 mono_mb_emit_icon (mb, TRUE);
3203 mono_mb_emit_icall (mb, cominterop_get_interface);
3204 mono_mb_emit_stloc (mb, ptr_this);
3206 // arg 1 is unmanaged this pointer
3207 mono_mb_emit_ldloc (mb, ptr_this);
3210 for (i = 1; i <= sig->param_count; i++)
3211 mono_mb_emit_ldarg (mb, i);
3213 // push managed return value as byref last argument
3214 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3215 mono_mb_emit_ldloc_addr (mb, retval);
3217 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3218 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3220 if (!preserve_sig) {
3221 if (!ThrowExceptionForHR)
3222 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3223 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3225 // load return value managed is expecting
3226 if (!MONO_TYPE_IS_VOID (sig->ret))
3227 mono_mb_emit_ldloc (mb, retval);
3230 mono_mb_emit_byte (mb, CEE_RET);
3235 /* Does this case ever get hit? */
3237 char *msg = g_strdup ("non imported interfaces on \
3238 imported classes is not yet implemented.");
3239 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3241 csig = signature_dup (method->klass->image, sig);
3243 res = mono_mb_create_and_cache (cache, method,
3244 mb, csig, csig->param_count + 16);
3250 * cominterop_get_invoke:
3251 * @method: managed method
3253 * Returns: the generated method that calls the underlying __ComObject
3254 * rather than the proxy object.
3257 cominterop_get_invoke (MonoMethod *method)
3259 MonoMethodSignature *sig;
3260 MonoMethodBuilder *mb;
3263 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3267 if ((res = mono_marshal_find_in_cache (cache, method)))
3270 sig = signature_no_pinvoke (method);
3272 /* we cant remote methods without this pointer */
3276 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3278 /* get real proxy object, which is a ComInteropProxy in this case*/
3279 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3280 mono_mb_emit_ldarg (mb, 0);
3281 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3282 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3284 /* load the RCW from the ComInteropProxy*/
3285 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3286 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3288 /* load args and make the call on the RCW */
3289 for (i = 1; i <= sig->param_count; i++)
3290 mono_mb_emit_ldarg (mb, i);
3292 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3293 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3294 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3297 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3298 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3300 mono_mb_emit_op (mb, CEE_CALL, method);
3303 if (!strcmp(method->name, ".ctor")) {
3304 static MonoClass *com_interop_proxy_class = NULL;
3305 static MonoMethod *cache_proxy = NULL;
3307 if (!com_interop_proxy_class)
3308 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3310 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3312 mono_mb_emit_ldarg (mb, 0);
3313 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3314 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3315 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3318 emit_thread_interrupt_checkpoint (mb);
3320 mono_mb_emit_byte (mb, CEE_RET);
3322 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3327 /* Maps a managed object to its unmanaged representation
3328 * i.e. it's COM Callable Wrapper (CCW).
3332 static GHashTable* ccw_hash = NULL;
3334 /* Maps a CCW interface to it's containing CCW.
3335 * Note that a CCW support many interfaces.
3337 * Value: MonoCCWInterface*
3339 static GHashTable* ccw_interface_hash = NULL;
3341 /* Maps the IUnknown value of a RCW to
3342 * it's MonoComInteropProxy*.
3346 static GHashTable* rcw_hash = NULL;
3349 mono_marshal_get_remoting_invoke (MonoMethod *method)
3351 MonoMethodSignature *sig;
3352 MonoMethodBuilder *mb;
3358 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3361 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3362 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3363 return cominterop_get_invoke(method);
3365 sig = signature_no_pinvoke (method);
3367 /* we cant remote methods without this pointer */
3371 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3374 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3375 mb->method->save_lmf = 1;
3377 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3379 mono_mb_emit_ptr (mb, method);
3380 mono_mb_emit_ldloc (mb, params_var);
3381 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3382 emit_thread_interrupt_checkpoint (mb);
3384 if (sig->ret->type == MONO_TYPE_VOID) {
3385 mono_mb_emit_byte (mb, CEE_POP);
3386 mono_mb_emit_byte (mb, CEE_RET);
3388 mono_mb_emit_restore_result (mb, sig->ret);
3391 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3397 /* mono_get_xdomain_marshal_type()
3398 * Returns the kind of marshalling that a type needs for cross domain calls.
3400 static MonoXDomainMarshalType
3401 mono_get_xdomain_marshal_type (MonoType *t)
3404 case MONO_TYPE_VOID:
3405 g_assert_not_reached ();
3409 case MONO_TYPE_BOOLEAN:
3412 case MONO_TYPE_CHAR:
3419 return MONO_MARSHAL_NONE;
3420 case MONO_TYPE_STRING:
3421 return MONO_MARSHAL_COPY;
3422 case MONO_TYPE_ARRAY:
3423 case MONO_TYPE_SZARRAY: {
3424 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3425 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3426 return MONO_MARSHAL_COPY;
3431 return MONO_MARSHAL_SERIALIZE;
3435 /* mono_marshal_xdomain_copy_value
3436 * Makes a copy of "val" suitable for the current domain.
3439 mono_marshal_xdomain_copy_value (MonoObject *val)
3442 if (val == NULL) return NULL;
3444 domain = mono_domain_get ();
3446 switch (mono_object_class (val)->byval_arg.type) {
3447 case MONO_TYPE_VOID:
3448 g_assert_not_reached ();
3452 case MONO_TYPE_BOOLEAN:
3455 case MONO_TYPE_CHAR:
3461 case MONO_TYPE_R8: {
3462 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3464 case MONO_TYPE_STRING: {
3465 MonoString *str = (MonoString *) val;
3466 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3468 case MONO_TYPE_ARRAY:
3469 case MONO_TYPE_SZARRAY: {
3471 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3472 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3473 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3474 if (mt == MONO_MARSHAL_COPY) {
3475 int i, len = mono_array_length (acopy);
3476 for (i = 0; i < len; i++) {
3477 MonoObject *item = mono_array_get (acopy, gpointer, i);
3478 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3481 return (MonoObject *) acopy;
3485 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3486 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3487 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3488 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3489 newsb->length = oldsb->length;
3490 newsb->max_capacity = (gint32)0x7fffffff;
3491 return (MonoObject *) newsb;
3496 /* mono_marshal_xdomain_copy_out_value()
3497 * Copies the contents of the src instance into the dst instance. src and dst
3498 * must have the same type, and if they are arrays, the same size.
3501 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3503 if (src == NULL || dst == NULL) return;
3505 g_assert (mono_object_class (src) == mono_object_class (dst));
3507 switch (mono_object_class (src)->byval_arg.type) {
3508 case MONO_TYPE_ARRAY:
3509 case MONO_TYPE_SZARRAY: {
3510 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3511 if (mt == MONO_MARSHAL_SERIALIZE) return;
3512 if (mt == MONO_MARSHAL_COPY) {
3513 int i, len = mono_array_length ((MonoArray *)dst);
3514 for (i = 0; i < len; i++) {
3515 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3516 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3519 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3525 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3526 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3527 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3529 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)));
3530 dst_sb->cached_str = NULL;
3531 dst_sb->length = src_sb->length;
3536 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3538 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3539 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3543 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3545 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3548 /* mono_marshal_supports_fast_xdomain()
3549 * Returns TRUE if the method can use the fast xdomain wrapper.
3552 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3554 return !method->klass->contextbound &&
3555 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3559 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3561 MonoDomain *current_domain = mono_domain_get ();
3562 MonoDomain *domain = mono_domain_get_by_id (id);
3564 if (!domain || !mono_domain_set (domain, FALSE))
3565 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3568 mono_thread_push_appdomain_ref (domain);
3570 mono_thread_pop_appdomain_ref ();
3572 return current_domain->domain_id;
3576 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3578 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3581 /* mono_marshal_emit_load_domain_method ()
3582 * Loads into the stack a pointer to the code of the provided method for
3583 * the current domain.
3586 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3588 /* We need a pointer to the method for the running domain (not the domain
3589 * that compiles the method).
3591 mono_mb_emit_ptr (mb, method);
3592 mono_mb_emit_icall (mb, mono_compile_method);
3595 /* mono_marshal_check_domain_image ()
3596 * Returns TRUE if the image is loaded in the specified
3597 * application domain.
3600 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3605 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3609 mono_domain_assemblies_lock (domain);
3610 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3612 if (ass->image == image)
3615 mono_domain_assemblies_unlock (domain);
3620 /* mono_marshal_get_xappdomain_dispatch ()
3621 * Generates a method that dispatches a method call from another domain into
3622 * the current domain.
3625 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3627 MonoMethodSignature *sig, *csig;
3628 MonoMethodBuilder *mb;
3630 int i, j, param_index, copy_locals_base;
3631 MonoClass *ret_class = NULL;
3632 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3633 MonoExceptionClause *main_clause;
3634 MonoMethodHeader *header;
3636 gboolean copy_return;
3638 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3641 sig = mono_method_signature (method);
3642 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3645 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3646 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3647 csig->params [j++] = &byte_array_class->this_arg;
3648 csig->params [j++] = &byte_array_class->this_arg;
3649 for (i = 0; i < sig->param_count; i++) {
3650 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3651 csig->params [j++] = sig->params [i];
3654 csig->ret = sig->ret;
3656 csig->ret = &mono_defaults.void_class->byval_arg;
3658 csig->hasthis = FALSE;
3660 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3661 mb->method->save_lmf = 1;
3665 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3666 if (complex_count > 0)
3667 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3668 if (sig->ret->type != MONO_TYPE_VOID) {
3669 loc_return = mono_mb_add_local (mb, sig->ret);
3670 ret_class = mono_class_from_mono_type (sig->ret);
3675 mono_loader_lock ();
3676 main_clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
3677 mono_loader_unlock ();
3678 main_clause->try_offset = mono_mb_get_label (mb);
3680 /* Clean the call context */
3682 mono_mb_emit_byte (mb, CEE_LDNULL);
3683 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3684 mono_mb_emit_byte (mb, CEE_POP);
3686 /* Deserialize call data */
3688 mono_mb_emit_ldarg (mb, 1);
3689 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3690 mono_mb_emit_byte (mb, CEE_DUP);
3691 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3693 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3694 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3696 if (complex_count > 0)
3697 mono_mb_emit_stloc (mb, loc_array);
3699 mono_mb_emit_byte (mb, CEE_POP);
3701 mono_mb_patch_short_branch (mb, pos);
3703 /* Get the target object */
3705 mono_mb_emit_ldarg (mb, 0);
3706 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3708 /* Load the arguments */
3710 copy_locals_base = mb->locals;
3711 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3713 for (i = 0; i < sig->param_count; i++) {
3714 MonoType *pt = sig->params [i];
3715 MonoClass *pclass = mono_class_from_mono_type (pt);
3716 switch (marshal_types [i]) {
3717 case MONO_MARSHAL_SERIALIZE: {
3718 /* take the value from the serialized array */
3719 mono_mb_emit_ldloc (mb, loc_array);
3720 mono_mb_emit_icon (mb, j++);
3722 if (pclass->valuetype) {
3723 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3724 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3726 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3729 if (pclass->valuetype) {
3730 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3731 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3732 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3734 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3735 if (pclass != mono_defaults.object_class) {
3736 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3742 case MONO_MARSHAL_COPY_OUT: {
3743 /* Keep a local copy of the value since we need to copy it back after the call */
3744 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3745 mono_mb_emit_ldarg (mb, param_index++);
3746 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3747 mono_mb_emit_byte (mb, CEE_DUP);
3748 mono_mb_emit_stloc (mb, copy_local);
3751 case MONO_MARSHAL_COPY: {
3752 mono_mb_emit_ldarg (mb, param_index);
3754 mono_mb_emit_byte (mb, CEE_DUP);
3755 mono_mb_emit_byte (mb, CEE_DUP);
3756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3757 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3758 mono_mb_emit_byte (mb, CEE_STIND_REF);
3760 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3765 case MONO_MARSHAL_NONE:
3766 mono_mb_emit_ldarg (mb, param_index++);
3771 /* Make the call to the real object */
3773 emit_thread_force_interrupt_checkpoint (mb);
3775 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3777 if (sig->ret->type != MONO_TYPE_VOID)
3778 mono_mb_emit_stloc (mb, loc_return);
3780 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3784 for (i = 0; i < sig->param_count; i++) {
3785 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3786 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3787 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3788 mono_mb_emit_ldarg (mb, param_index);
3789 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3794 /* Serialize the return values */
3796 if (complex_out_count > 0) {
3797 /* Reset parameters in the array that don't need to be serialized back */
3799 for (i = 0; i < sig->param_count; i++) {
3800 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3801 if (!sig->params [i]->byref) {
3802 mono_mb_emit_ldloc (mb, loc_array);
3803 mono_mb_emit_icon (mb, j);
3804 mono_mb_emit_byte (mb, CEE_LDNULL);
3805 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3810 /* Add the return value to the array */
3812 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3813 mono_mb_emit_ldloc (mb, loc_array);
3814 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3815 mono_mb_emit_ldloc (mb, loc_return);
3816 if (ret_class->valuetype) {
3817 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3819 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3824 mono_mb_emit_ldarg (mb, 1);
3825 mono_mb_emit_ldloc (mb, loc_array);
3826 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3827 mono_mb_emit_byte (mb, CEE_STIND_REF);
3828 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3829 mono_mb_emit_ldarg (mb, 1);
3830 mono_mb_emit_ldloc (mb, loc_return);
3831 if (ret_class->valuetype) {
3832 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3834 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3835 mono_mb_emit_byte (mb, CEE_STIND_REF);
3837 mono_mb_emit_ldarg (mb, 1);
3838 mono_mb_emit_byte (mb, CEE_LDNULL);
3839 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3840 mono_mb_emit_byte (mb, CEE_STIND_REF);
3843 mono_mb_emit_ldarg (mb, 2);
3844 mono_mb_emit_byte (mb, CEE_LDNULL);
3845 mono_mb_emit_byte (mb, CEE_STIND_REF);
3846 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3848 /* Main exception catch */
3849 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3850 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3851 main_clause->data.catch_class = mono_defaults.object_class;
3854 main_clause->handler_offset = mono_mb_get_label (mb);
3855 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3856 mono_mb_emit_stloc (mb, loc_serialized_exc);
3857 mono_mb_emit_ldarg (mb, 2);
3858 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3859 mono_mb_emit_byte (mb, CEE_STIND_REF);
3860 mono_mb_emit_branch (mb, CEE_LEAVE);
3861 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3864 mono_mb_patch_branch (mb, pos_leave);
3867 mono_mb_emit_ldloc (mb, loc_return);
3869 mono_mb_emit_byte (mb, CEE_RET);
3871 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3874 header = ((MonoMethodNormal *)res)->header;
3875 header->num_clauses = 1;
3876 header->clauses = main_clause;
3881 /* mono_marshal_get_xappdomain_invoke ()
3882 * Generates a fast remoting wrapper for cross app domain calls.
3885 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3887 MonoMethodSignature *sig;
3888 MonoMethodBuilder *mb;
3890 int i, j, complex_count, complex_out_count, copy_locals_base;
3892 MonoClass *ret_class = NULL;
3893 MonoMethod *xdomain_method;
3894 int ret_marshal_type = MONO_MARSHAL_NONE;
3895 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3896 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3897 int pos, pos_dispatch, pos_noex;
3898 gboolean copy_return = FALSE;
3902 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3905 /* we cant remote methods without this pointer */
3906 if (!mono_method_signature (method)->hasthis)
3909 if (!mono_marshal_supports_fast_xdomain (method))
3910 return mono_marshal_get_remoting_invoke (method);
3912 mono_remoting_marshal_init ();
3914 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3917 sig = signature_no_pinvoke (method);
3919 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3920 mb->method->save_lmf = 1;
3922 /* Count the number of parameters that need to be serialized */
3924 marshal_types = alloca (sizeof (int) * sig->param_count);
3925 complex_count = complex_out_count = 0;
3926 for (i = 0; i < sig->param_count; i++) {
3927 MonoType *ptype = sig->params[i];
3928 int mt = mono_get_xdomain_marshal_type (ptype);
3930 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3931 * the copy will be made by reusing the original object instance
3933 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3934 mt = MONO_MARSHAL_COPY_OUT;
3935 else if (mt == MONO_MARSHAL_SERIALIZE) {
3937 if (ptype->byref) complex_out_count++;
3939 marshal_types [i] = mt;
3942 if (sig->ret->type != MONO_TYPE_VOID) {
3943 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3944 ret_class = mono_class_from_mono_type (sig->ret);
3945 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3950 if (complex_count > 0)
3951 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3952 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3953 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3955 loc_return = mono_mb_add_local (mb, sig->ret);
3956 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3957 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3958 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3959 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3961 /* Save thread domain data */
3963 mono_mb_emit_icall (mb, mono_context_get);
3964 mono_mb_emit_byte (mb, CEE_DUP);
3965 mono_mb_emit_stloc (mb, loc_context);
3967 /* If the thread is not running in the default context, it needs to go
3968 * through the whole remoting sink, since the context is going to change
3970 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3971 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3973 /* Another case in which the fast path can't be used: when the target domain
3974 * has a different image for the same assembly.
3977 /* Get the target domain id */
3979 mono_mb_emit_ldarg (mb, 0);
3980 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3981 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3982 mono_mb_emit_byte (mb, CEE_DUP);
3983 mono_mb_emit_stloc (mb, loc_real_proxy);
3985 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3986 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3987 mono_mb_emit_stloc (mb, loc_domainid);
3989 /* Check if the target domain has the same image for the required assembly */
3991 mono_mb_emit_ldloc (mb, loc_domainid);
3992 mono_mb_emit_ptr (mb, method->klass->image);
3993 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3994 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3996 /* Use the whole remoting sink to dispatch this message */
3998 mono_mb_patch_short_branch (mb, pos);
4000 mono_mb_emit_ldarg (mb, 0);
4001 for (i = 0; i < sig->param_count; i++)
4002 mono_mb_emit_ldarg (mb, i + 1);
4004 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4005 mono_mb_emit_byte (mb, CEE_RET);
4006 mono_mb_patch_short_branch (mb, pos_dispatch);
4008 /* Create the array that will hold the parameters to be serialized */
4010 if (complex_count > 0) {
4011 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 */
4012 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4015 for (i = 0; i < sig->param_count; i++) {
4017 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4018 pclass = mono_class_from_mono_type (sig->params[i]);
4019 mono_mb_emit_byte (mb, CEE_DUP);
4020 mono_mb_emit_icon (mb, j);
4021 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4022 if (sig->params[i]->byref) {
4023 if (pclass->valuetype)
4024 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4026 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4028 if (pclass->valuetype)
4029 mono_mb_emit_op (mb, CEE_BOX, pclass);
4030 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4033 mono_mb_emit_stloc (mb, loc_array);
4035 /* Serialize parameters */
4037 mono_mb_emit_ldloc (mb, loc_array);
4038 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4039 mono_mb_emit_stloc (mb, loc_serialized_data);
4041 mono_mb_emit_byte (mb, CEE_LDNULL);
4042 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4043 mono_mb_emit_stloc (mb, loc_serialized_data);
4048 mono_mb_emit_ldloc (mb, loc_domainid);
4049 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4050 mono_marshal_emit_switch_domain (mb);
4051 mono_mb_emit_stloc (mb, loc_old_domainid);
4053 /* Load the arguments */
4055 mono_mb_emit_ldloc (mb, loc_real_proxy);
4056 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4057 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4059 copy_locals_base = mb->locals;
4060 for (i = 0; i < sig->param_count; i++) {
4061 switch (marshal_types [i]) {
4062 case MONO_MARSHAL_SERIALIZE:
4064 case MONO_MARSHAL_COPY: {
4065 mono_mb_emit_ldarg (mb, i+1);
4066 if (sig->params [i]->byref) {
4067 /* make a local copy of the byref parameter. The real parameter
4068 * will be updated after the xdomain call
4070 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4071 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4072 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4073 mono_mb_emit_stloc (mb, copy_local);
4074 mono_mb_emit_ldloc_addr (mb, copy_local);
4078 case MONO_MARSHAL_COPY_OUT:
4079 case MONO_MARSHAL_NONE:
4080 mono_mb_emit_ldarg (mb, i+1);
4085 /* Make the call to the invoke wrapper in the target domain */
4087 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4088 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4089 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4092 mono_mb_emit_stloc (mb, loc_return);
4096 mono_mb_emit_ldloc (mb, loc_old_domainid);
4097 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4098 mono_marshal_emit_switch_domain (mb);
4099 mono_mb_emit_byte (mb, CEE_POP);
4101 /* Restore thread domain data */
4103 mono_mb_emit_ldloc (mb, loc_context);
4104 mono_mb_emit_icall (mb, mono_context_set);
4106 /* if (loc_serialized_exc != null) ... */
4108 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4109 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4111 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4112 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4113 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4114 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4115 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4116 mono_mb_emit_byte (mb, CEE_THROW);
4117 mono_mb_patch_short_branch (mb, pos_noex);
4119 /* copy back non-serialized output parameters */
4122 for (i = 0; i < sig->param_count; i++) {
4123 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4124 mono_mb_emit_ldarg (mb, i + 1);
4125 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4126 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4127 mono_mb_emit_byte (mb, CEE_STIND_REF);
4130 /* Deserialize out parameters */
4132 if (complex_out_count > 0) {
4133 mono_mb_emit_ldloc (mb, loc_serialized_data);
4134 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4135 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4136 mono_mb_emit_stloc (mb, loc_array);
4138 /* Copy back output parameters and return type */
4141 for (i = 0; i < sig->param_count; i++) {
4142 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4143 if (sig->params[i]->byref) {
4144 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4145 mono_mb_emit_ldarg (mb, i + 1);
4146 mono_mb_emit_ldloc (mb, loc_array);
4147 mono_mb_emit_icon (mb, j);
4148 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4149 if (pclass->valuetype) {
4150 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4151 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4152 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4154 if (pclass != mono_defaults.object_class)
4155 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4156 mono_mb_emit_byte (mb, CEE_STIND_REF);
4162 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4163 mono_mb_emit_ldloc (mb, loc_array);
4164 mono_mb_emit_icon (mb, complex_count);
4165 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4166 if (ret_class->valuetype) {
4167 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4168 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4171 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4172 mono_mb_emit_ldloc (mb, loc_serialized_data);
4173 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4174 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4175 if (ret_class->valuetype) {
4176 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4177 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4178 } else if (ret_class != mono_defaults.object_class) {
4179 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4182 mono_mb_emit_ldloc (mb, loc_serialized_data);
4183 mono_mb_emit_byte (mb, CEE_DUP);
4184 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4185 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4187 mono_mb_patch_short_branch (mb, pos);
4188 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4189 mono_mb_emit_byte (mb, CEE_POP);
4193 mono_mb_emit_ldloc (mb, loc_return);
4194 if (ret_marshal_type == MONO_MARSHAL_COPY)
4195 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4198 mono_mb_emit_byte (mb, CEE_RET);
4200 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4207 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4209 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4210 return mono_marshal_get_xappdomain_invoke (method);
4211 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4212 return cominterop_get_invoke (method);
4214 return mono_marshal_get_remoting_invoke (method);
4217 G_GNUC_UNUSED static gpointer
4218 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4220 if (rp->target_domain_id != -1)
4221 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4223 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4227 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4229 MonoMethodSignature *sig;
4230 MonoMethodBuilder *mb;
4231 MonoMethod *res, *native;
4232 int i, pos, pos_rem;
4236 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4239 /* we cant remote methods without this pointer */
4240 g_assert (mono_method_signature (method)->hasthis);
4242 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4245 sig = signature_no_pinvoke (method);
4247 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4249 for (i = 0; i <= sig->param_count; i++)
4250 mono_mb_emit_ldarg (mb, i);
4252 mono_mb_emit_ldarg (mb, 0);
4253 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4255 if (mono_marshal_supports_fast_xdomain (method)) {
4256 mono_mb_emit_ldarg (mb, 0);
4257 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4259 /* wrapper for cross app domain calls */
4260 native = mono_marshal_get_xappdomain_invoke (method);
4261 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4262 mono_mb_emit_byte (mb, CEE_RET);
4264 mono_mb_patch_branch (mb, pos_rem);
4266 /* wrapper for normal remote calls */
4267 native = mono_marshal_get_remoting_invoke (method);
4268 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4269 mono_mb_emit_byte (mb, CEE_RET);
4272 mono_mb_patch_branch (mb, pos);
4273 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4274 mono_mb_emit_byte (mb, CEE_RET);
4276 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4284 MonoMethodSignature *sig;
4286 } SignatureMethodPair;
4289 signature_method_pair_hash (gconstpointer data)
4291 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4293 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4297 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4299 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4303 free_signature_method_pair (SignatureMethodPair *pair)
4309 * the returned method invokes all methods in a multicast delegate.
4312 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4314 MonoMethodSignature *sig, *static_sig;
4316 MonoMethodBuilder *mb;
4317 MonoMethod *res, *newm;
4319 SignatureMethodPair key;
4320 SignatureMethodPair *new_key;
4321 int local_prev, local_target;
4324 MonoMethod *target_method = NULL;
4325 gboolean callvirt = FALSE;
4328 * If the delegate target is null, and the target method is not static, a virtual
4329 * call is made to that method with the first delegate argument as this. This is
4330 * a non-documented .NET feature.
4332 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4334 target_method = del->method;
4337 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4338 !strcmp (method->name, "Invoke"));
4340 sig = signature_no_pinvoke (method);
4343 /* We need to cache the signature+method pair */
4344 mono_marshal_lock ();
4345 if (!method->klass->image->delegate_abstract_invoke_cache)
4346 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
4347 cache = method->klass->image->delegate_abstract_invoke_cache;
4349 key.method = target_method;
4350 res = g_hash_table_lookup (cache, &key);
4351 mono_marshal_unlock ();
4355 cache = method->klass->image->delegate_invoke_cache;
4356 if ((res = mono_marshal_find_in_cache (cache, sig)))
4360 static_sig = signature_dup (method->klass->image, sig);
4361 static_sig->hasthis = 0;
4363 name = mono_signature_to_name (sig, "invoke");
4364 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4367 /* allocate local 0 (object) */
4368 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4369 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4371 g_assert (sig->hasthis);
4375 * prev.Invoke( args .. );
4376 * return this.<target>( args .. );
4379 /* this wrapper can be used in unmanaged-managed transitions */
4380 emit_thread_interrupt_checkpoint (mb);
4382 /* get this->prev */
4383 mono_mb_emit_ldarg (mb, 0);
4384 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4385 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4386 mono_mb_emit_stloc (mb, local_prev);
4387 mono_mb_emit_ldloc (mb, local_prev);
4389 /* if prev != null */
4390 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4394 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4395 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4397 mono_mb_emit_ldloc (mb, local_prev);
4398 for (i = 0; i < sig->param_count; i++)
4399 mono_mb_emit_ldarg (mb, i + 1);
4400 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4401 if (sig->ret->type != MONO_TYPE_VOID)
4402 mono_mb_emit_byte (mb, CEE_POP);
4404 /* continued or prev == null */
4405 mono_mb_patch_branch (mb, pos0);
4407 /* get this->target */
4408 mono_mb_emit_ldarg (mb, 0);
4409 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4410 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4411 mono_mb_emit_stloc (mb, local_target);
4413 /* if target != null */
4414 mono_mb_emit_ldloc (mb, local_target);
4415 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4417 /* then call this->method_ptr nonstatic */
4420 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4422 mono_mb_emit_ldloc (mb, local_target);
4423 for (i = 0; i < sig->param_count; ++i)
4424 mono_mb_emit_ldarg (mb, i + 1);
4425 mono_mb_emit_ldarg (mb, 0);
4426 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4427 mono_mb_emit_byte (mb, CEE_LDIND_I );
4428 mono_mb_emit_op (mb, CEE_CALLI, sig);
4430 mono_mb_emit_byte (mb, CEE_RET);
4433 /* else [target == null] call this->method_ptr static */
4434 mono_mb_patch_branch (mb, pos0);
4437 mono_mb_emit_ldarg (mb, 1);
4438 mono_mb_emit_op (mb, CEE_CASTCLASS, target_method->klass);
4439 for (i = 1; i < sig->param_count; ++i)
4440 mono_mb_emit_ldarg (mb, i + 1);
4441 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4443 for (i = 0; i < sig->param_count; ++i)
4444 mono_mb_emit_ldarg (mb, i + 1);
4445 mono_mb_emit_ldarg (mb, 0);
4446 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4447 mono_mb_emit_byte (mb, CEE_LDIND_I );
4448 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4451 mono_mb_emit_byte (mb, CEE_RET);
4454 // From mono_mb_create_and_cache
4455 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4456 mono_marshal_lock ();
4457 res = g_hash_table_lookup (cache, &key);
4460 new_key = g_new0 (SignatureMethodPair, 1);
4462 new_key->method = target_method;
4463 g_hash_table_insert (cache, new_key, res);
4464 g_hash_table_insert (wrapper_hash, res, new_key);
4465 mono_marshal_unlock ();
4467 mono_marshal_unlock ();
4468 mono_free_method (newm);
4471 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4479 * signature_dup_add_this:
4481 * Make a copy of @sig, adding an explicit this argument.
4483 static MonoMethodSignature*
4484 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4486 MonoMethodSignature *res;
4489 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4490 memcpy (res, sig, sizeof (MonoMethodSignature));
4491 res->param_count = sig->param_count + 1;
4492 res->hasthis = FALSE;
4493 for (i = sig->param_count - 1; i >= 0; i --)
4494 res->params [i + 1] = sig->params [i];
4495 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4501 MonoMethodSignature *ctor_sig;
4502 MonoMethodSignature *sig;
4505 /* protected by the marshal lock, contains CtorSigPair pointers */
4506 static GSList *strsig_list = NULL;
4508 static MonoMethodSignature *
4509 lookup_string_ctor_signature (MonoMethodSignature *sig)
4511 MonoMethodSignature *callsig;
4515 mono_marshal_lock ();
4517 for (item = strsig_list; item; item = item->next) {
4519 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4520 * because it is lock-free.
4522 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4527 mono_marshal_unlock ();
4531 static MonoMethodSignature *
4532 add_string_ctor_signature (MonoMethod *method)
4534 MonoMethodSignature *callsig;
4537 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4538 callsig->ret = &mono_defaults.string_class->byval_arg;
4539 cs = g_new (CtorSigPair, 1);
4541 cs->ctor_sig = mono_method_signature (method);
4543 mono_marshal_lock ();
4544 strsig_list = g_slist_prepend (strsig_list, cs);
4545 mono_marshal_unlock ();
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
4556 mono_marshal_get_runtime_invoke (MonoMethod *method)
4558 MonoMethodSignature *sig, *csig, *callsig;
4559 MonoExceptionClause *clause;
4560 MonoMethodHeader *header;
4561 MonoMethodBuilder *mb;
4562 GHashTable *cache = NULL;
4563 MonoClass *target_klass;
4564 MonoMethod *res = NULL;
4565 static MonoString *string_dummy = NULL;
4566 static MonoMethodSignature *delay_abort_sig = NULL;
4567 static MonoMethodSignature *cctor_signature = NULL;
4568 static MonoMethodSignature *finalize_signature = NULL;
4571 gboolean need_direct_wrapper = FALSE;
4575 if (!cctor_signature) {
4576 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4577 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4579 if (!finalize_signature) {
4580 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4581 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4582 finalize_signature->hasthis = 1;
4585 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4586 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4588 * Array Get/Set/Address methods. The JIT implements them using inline code
4589 * so we need to create an invoke wrapper which calls the method directly.
4591 need_direct_wrapper = TRUE;
4594 if (method->string_ctor) {
4595 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4597 callsig = add_string_ctor_signature (method);
4599 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4601 * Valuetype methods receive a managed pointer as the this argument.
4602 * Create a new signature to reflect this.
4604 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4606 if (method->dynamic)
4607 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4609 callsig = mono_method_signature (method);
4614 * We try to share runtime invoke wrappers between different methods but have to
4615 * be careful about methods whose klass has a type cctor, since putting the wrapper
4616 * into that klass would mean that calling a method of klass A might invoke the
4617 * type initializer of class B, or throw an exception if the type initializer
4618 * was called before and failed. See #349621 for an example.
4619 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4621 if (method->klass->image == mono_defaults.corlib)
4622 target_klass = mono_defaults.object_class;
4624 /* Try to share wrappers for non-corlib methods with simple signatures */
4625 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4626 callsig = cctor_signature;
4627 target_klass = mono_defaults.object_class;
4628 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4629 callsig = finalize_signature;
4630 target_klass = mono_defaults.object_class;
4632 // FIXME: This breaks too many things
4634 if (mono_class_get_cctor (method->klass))
4635 need_direct_wrapper = TRUE;
4639 * Can't put these wrappers into object, since they reference non-corlib
4640 * metadata (callsig).
4642 target_klass = method->klass;
4646 if (need_direct_wrapper) {
4647 cache = target_klass->image->runtime_invoke_direct_cache;
4648 res = mono_marshal_find_in_cache (cache, method);
4650 cache = target_klass->image->runtime_invoke_cache;
4652 /* from mono_marshal_find_in_cache */
4653 mono_marshal_lock ();
4654 res = g_hash_table_lookup (cache, callsig);
4655 mono_marshal_unlock ();
4662 if (!delay_abort_sig) {
4663 delay_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4664 delay_abort_sig->ret = &mono_defaults.void_class->byval_arg;
4665 delay_abort_sig->pinvoke = 0;
4668 /* to make it work with our special string constructors */
4669 if (!string_dummy) {
4670 MONO_GC_REGISTER_ROOT (string_dummy);
4671 string_dummy = mono_string_new_wrapper ("dummy");
4674 sig = mono_method_signature (method);
4676 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4678 csig->ret = &mono_defaults.object_class->byval_arg;
4679 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4680 csig->params [0] = callsig->params [0];
4682 csig->params [0] = &mono_defaults.object_class->byval_arg;
4683 csig->params [1] = &mono_defaults.int_class->byval_arg;
4684 csig->params [2] = &mono_defaults.int_class->byval_arg;
4685 csig->params [3] = &mono_defaults.int_class->byval_arg;
4687 name = mono_signature_to_name (callsig, "runtime_invoke");
4688 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4691 /* allocate local 0 (object) tmp */
4692 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4693 /* allocate local 1 (object) exc */
4694 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4696 /* cond set *exc to null */
4697 mono_mb_emit_byte (mb, CEE_LDARG_2);
4698 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4699 mono_mb_emit_byte (mb, 3);
4700 mono_mb_emit_byte (mb, CEE_LDARG_2);
4701 mono_mb_emit_byte (mb, CEE_LDNULL);
4702 mono_mb_emit_byte (mb, CEE_STIND_REF);
4704 emit_thread_force_interrupt_checkpoint (mb);
4707 if (method->string_ctor) {
4708 mono_mb_emit_ptr (mb, string_dummy);
4710 mono_mb_emit_ldarg (mb, 0);
4714 for (i = 0; i < sig->param_count; i++) {
4715 MonoType *t = sig->params [i];
4718 mono_mb_emit_ldarg (mb, 1);
4720 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4721 mono_mb_emit_byte (mb, CEE_ADD);
4725 mono_mb_emit_byte (mb, CEE_LDIND_I);
4729 type = sig->params [i]->type;
4733 case MONO_TYPE_BOOLEAN:
4737 case MONO_TYPE_CHAR:
4746 mono_mb_emit_byte (mb, CEE_LDIND_I);
4747 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4749 case MONO_TYPE_STRING:
4750 case MONO_TYPE_CLASS:
4751 case MONO_TYPE_ARRAY:
4753 case MONO_TYPE_SZARRAY:
4754 case MONO_TYPE_OBJECT:
4755 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4757 case MONO_TYPE_GENERICINST:
4758 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4759 mono_mb_emit_byte (mb, CEE_LDIND_I);
4764 case MONO_TYPE_VALUETYPE:
4765 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4766 type = t->data.klass->enum_basetype->type;
4769 mono_mb_emit_byte (mb, CEE_LDIND_I);
4770 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4771 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4772 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4773 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4775 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4779 g_assert_not_reached ();
4783 if (need_direct_wrapper) {
4784 mono_mb_emit_op (mb, CEE_CALL, method);
4786 mono_mb_emit_ldarg (mb, 3);
4787 mono_mb_emit_calli (mb, callsig);
4790 if (sig->ret->byref) {
4792 g_assert_not_reached ();
4796 switch (sig->ret->type) {
4797 case MONO_TYPE_VOID:
4798 if (!method->string_ctor)
4799 mono_mb_emit_byte (mb, CEE_LDNULL);
4801 case MONO_TYPE_BOOLEAN:
4802 case MONO_TYPE_CHAR:
4815 case MONO_TYPE_VALUETYPE:
4816 case MONO_TYPE_TYPEDBYREF:
4817 case MONO_TYPE_GENERICINST:
4818 /* box value types */
4819 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4821 case MONO_TYPE_STRING:
4822 case MONO_TYPE_CLASS:
4823 case MONO_TYPE_ARRAY:
4824 case MONO_TYPE_SZARRAY:
4825 case MONO_TYPE_OBJECT:
4830 g_assert_not_reached ();
4833 mono_mb_emit_stloc (mb, 0);
4835 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4837 mono_loader_lock ();
4838 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
4839 mono_loader_unlock ();
4840 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4841 clause->try_len = mono_mb_get_label (mb);
4844 clause->data.filter_offset = mono_mb_get_label (mb);
4846 mono_mb_emit_byte (mb, CEE_POP);
4847 mono_mb_emit_byte (mb, CEE_LDARG_2);
4848 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4849 mono_mb_emit_byte (mb, CEE_PREFIX1);
4850 mono_mb_emit_byte (mb, CEE_CGT_UN);
4851 mono_mb_emit_byte (mb, CEE_PREFIX1);
4852 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4854 clause->handler_offset = mono_mb_get_label (mb);
4857 /* store exception */
4858 mono_mb_emit_stloc (mb, 1);
4860 mono_mb_emit_byte (mb, CEE_LDARG_2);
4861 mono_mb_emit_ldloc (mb, 1);
4862 mono_mb_emit_byte (mb, CEE_STIND_REF);
4864 mono_mb_emit_byte (mb, CEE_LDNULL);
4865 mono_mb_emit_stloc (mb, 0);
4867 /* Check for the abort exception */
4868 mono_mb_emit_ldloc (mb, 1);
4869 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4870 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4872 /* Delay the abort exception */
4873 mono_mb_emit_native_call (mb, delay_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
4875 mono_mb_patch_short_branch (mb, posna);
4876 mono_mb_emit_branch (mb, CEE_LEAVE);
4878 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4881 mono_mb_patch_branch (mb, pos);
4882 mono_mb_emit_ldloc (mb, 0);
4883 mono_mb_emit_byte (mb, CEE_RET);
4885 if (need_direct_wrapper) {
4886 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4888 /* taken from mono_mb_create_and_cache */
4889 mono_marshal_lock ();
4890 res = g_hash_table_lookup (cache, callsig);
4891 mono_marshal_unlock ();
4893 /* Somebody may have created it before us */
4896 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4898 mono_marshal_lock ();
4899 res = g_hash_table_lookup (cache, callsig);
4902 g_hash_table_insert (cache, callsig, res);
4903 g_hash_table_insert (wrapper_hash, res, callsig);
4905 mono_free_method (newm);
4907 mono_marshal_unlock ();
4910 /* end mono_mb_create_and_cache */
4915 header = ((MonoMethodNormal *)res)->header;
4916 header->num_clauses = 1;
4917 header->clauses = clause;
4923 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4925 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4926 klass->name_space, klass->name);
4928 mono_mb_emit_exception_marshal_directive (mb, msg);
4932 * mono_marshal_get_ldfld_remote_wrapper:
4933 * @klass: The return type
4935 * This method generates a wrapper for calling mono_load_remote_field_new with
4936 * the appropriate return type.
4939 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4941 MonoMethodSignature *sig, *csig;
4942 MonoMethodBuilder *mb;
4947 cache = klass->image->ldfld_remote_wrapper_cache;
4948 if ((res = mono_marshal_find_in_cache (cache, klass)))
4952 * This wrapper is similar to an icall wrapper but all the wrappers
4953 * call the same C function, but with a different signature.
4955 name = g_strdup_printf ("__mono_load_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
4956 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD_REMOTE);
4959 mb->method->save_lmf = 1;
4961 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4962 sig->params [0] = &mono_defaults.object_class->byval_arg;
4963 sig->params [1] = &mono_defaults.int_class->byval_arg;
4964 sig->params [2] = &mono_defaults.int_class->byval_arg;
4965 sig->ret = &klass->this_arg;
4967 mono_mb_emit_ldarg (mb, 0);
4968 mono_mb_emit_ldarg (mb, 1);
4969 mono_mb_emit_ldarg (mb, 2);
4971 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4972 csig->params [0] = &mono_defaults.object_class->byval_arg;
4973 csig->params [1] = &mono_defaults.int_class->byval_arg;
4974 csig->params [2] = &mono_defaults.int_class->byval_arg;
4975 csig->ret = &klass->this_arg;
4978 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4979 emit_thread_interrupt_checkpoint (mb);
4981 mono_mb_emit_byte (mb, CEE_RET);
4983 res = mono_mb_create_and_cache (cache, klass,
4984 mb, sig, sig->param_count + 16);
4991 * mono_marshal_get_ldfld_wrapper:
4992 * @type: the type of the field
4994 * This method generates a function which can be use to load a field with type
4995 * @type from an object. The generated function has the following signature:
4996 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4999 mono_marshal_get_ldfld_wrapper (MonoType *type)
5001 MonoMethodSignature *sig;
5002 MonoMethodBuilder *mb;
5007 int t, pos0, pos1 = 0;
5009 type = mono_type_get_underlying_type (type);
5014 if (type->type == MONO_TYPE_SZARRAY) {
5015 klass = mono_defaults.array_class;
5016 } else if (type->type == MONO_TYPE_VALUETYPE) {
5017 klass = type->data.klass;
5018 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5019 klass = mono_defaults.object_class;
5020 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5021 klass = mono_defaults.int_class;
5022 } else if (t == MONO_TYPE_GENERICINST) {
5023 if (mono_type_generic_inst_is_valuetype (type))
5024 klass = mono_class_from_mono_type (type);
5026 klass = mono_defaults.object_class;
5028 klass = mono_class_from_mono_type (type);
5031 klass = mono_defaults.int_class;
5034 cache = klass->image->ldfld_wrapper_cache;
5035 if ((res = mono_marshal_find_in_cache (cache, klass)))
5038 /* we add the %p pointer value of klass because class names are not unique */
5039 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5040 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5043 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5044 sig->params [0] = &mono_defaults.object_class->byval_arg;
5045 sig->params [1] = &mono_defaults.int_class->byval_arg;
5046 sig->params [2] = &mono_defaults.int_class->byval_arg;
5047 sig->params [3] = &mono_defaults.int_class->byval_arg;
5048 sig->ret = &klass->byval_arg;
5050 mono_mb_emit_ldarg (mb, 0);
5051 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5053 mono_mb_emit_ldarg (mb, 0);
5054 mono_mb_emit_ldarg (mb, 1);
5055 mono_mb_emit_ldarg (mb, 2);
5057 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5060 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5061 csig->params [0] = &mono_defaults.object_class->byval_arg;
5062 csig->params [1] = &mono_defaults.int_class->byval_arg;
5063 csig->params [2] = &mono_defaults.int_class->byval_arg;
5064 csig->ret = &klass->this_arg;
5067 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5068 emit_thread_interrupt_checkpoint (mb);
5071 if (klass->valuetype) {
5072 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5073 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5075 mono_mb_emit_byte (mb, CEE_RET);
5079 mono_mb_patch_branch (mb, pos0);
5081 mono_mb_emit_ldarg (mb, 0);
5082 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5083 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5084 mono_mb_emit_ldarg (mb, 3);
5085 mono_mb_emit_byte (mb, CEE_ADD);
5087 if (klass->valuetype)
5088 mono_mb_patch_branch (mb, pos1);
5093 case MONO_TYPE_BOOLEAN:
5094 case MONO_TYPE_CHAR:
5103 case MONO_TYPE_ARRAY:
5104 case MONO_TYPE_SZARRAY:
5105 case MONO_TYPE_OBJECT:
5106 case MONO_TYPE_CLASS:
5107 case MONO_TYPE_STRING:
5111 case MONO_TYPE_FNPTR:
5112 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5114 case MONO_TYPE_VALUETYPE:
5115 g_assert (!klass->enumtype);
5116 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5118 case MONO_TYPE_GENERICINST:
5119 if (mono_type_generic_inst_is_valuetype (type)) {
5120 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5122 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5126 g_warning ("type %x not implemented", type->type);
5127 g_assert_not_reached ();
5130 mono_mb_emit_byte (mb, CEE_RET);
5132 res = mono_mb_create_and_cache (cache, klass,
5133 mb, sig, sig->param_count + 16);
5140 * mono_marshal_get_ldflda_wrapper:
5141 * @type: the type of the field
5143 * This method generates a function which can be used to load a field address
5144 * from an object. The generated function has the following signature:
5145 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5148 mono_marshal_get_ldflda_wrapper (MonoType *type)
5150 MonoMethodSignature *sig;
5151 MonoMethodBuilder *mb;
5158 type = mono_type_get_underlying_type (type);
5162 if (type->type == MONO_TYPE_SZARRAY) {
5163 klass = mono_defaults.array_class;
5164 } else if (type->type == MONO_TYPE_VALUETYPE) {
5165 klass = type->data.klass;
5166 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5167 t == MONO_TYPE_CLASS) {
5168 klass = mono_defaults.object_class;
5169 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5170 klass = mono_defaults.int_class;
5171 } else if (t == MONO_TYPE_GENERICINST) {
5172 if (mono_type_generic_inst_is_valuetype (type))
5173 klass = mono_class_from_mono_type (type);
5175 klass = mono_defaults.object_class;
5177 klass = mono_class_from_mono_type (type);
5180 klass = mono_defaults.int_class;
5183 cache = klass->image->ldflda_wrapper_cache;
5184 if ((res = mono_marshal_find_in_cache (cache, klass)))
5187 /* we add the %p pointer value of klass because class names are not unique */
5188 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5189 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5192 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5193 sig->params [0] = &mono_defaults.object_class->byval_arg;
5194 sig->params [1] = &mono_defaults.int_class->byval_arg;
5195 sig->params [2] = &mono_defaults.int_class->byval_arg;
5196 sig->params [3] = &mono_defaults.int_class->byval_arg;
5197 sig->ret = &mono_defaults.int_class->byval_arg;
5199 mono_mb_emit_ldarg (mb, 0);
5200 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5202 /* FIXME: Only throw this if the object is in another appdomain */
5203 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5205 mono_mb_patch_branch (mb, pos0);
5207 mono_mb_emit_ldarg (mb, 0);
5208 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5209 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5210 mono_mb_emit_ldarg (mb, 3);
5211 mono_mb_emit_byte (mb, CEE_ADD);
5213 mono_mb_emit_byte (mb, CEE_RET);
5215 res = mono_mb_create_and_cache (cache, klass,
5216 mb, sig, sig->param_count + 16);
5223 * mono_marshal_get_stfld_remote_wrapper:
5224 * klass: The type of the field
5226 * This function generates a wrapper for calling mono_store_remote_field_new
5227 * with the appropriate signature.
5230 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5232 MonoMethodSignature *sig, *csig;
5233 MonoMethodBuilder *mb;
5238 cache = klass->image->stfld_remote_wrapper_cache;
5239 if ((res = mono_marshal_find_in_cache (cache, klass)))
5242 name = g_strdup_printf ("__mono_store_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
5243 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD_REMOTE);
5246 mb->method->save_lmf = 1;
5248 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5249 sig->params [0] = &mono_defaults.object_class->byval_arg;
5250 sig->params [1] = &mono_defaults.int_class->byval_arg;
5251 sig->params [2] = &mono_defaults.int_class->byval_arg;
5252 sig->params [3] = &klass->byval_arg;
5253 sig->ret = &mono_defaults.void_class->byval_arg;
5255 mono_mb_emit_ldarg (mb, 0);
5256 mono_mb_emit_ldarg (mb, 1);
5257 mono_mb_emit_ldarg (mb, 2);
5258 mono_mb_emit_ldarg (mb, 3);
5260 if (klass->valuetype)
5261 mono_mb_emit_op (mb, CEE_BOX, klass);
5263 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5264 csig->params [0] = &mono_defaults.object_class->byval_arg;
5265 csig->params [1] = &mono_defaults.int_class->byval_arg;
5266 csig->params [2] = &mono_defaults.int_class->byval_arg;
5267 csig->params [3] = &klass->byval_arg;
5268 csig->ret = &mono_defaults.void_class->byval_arg;
5271 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5272 emit_thread_interrupt_checkpoint (mb);
5274 mono_mb_emit_byte (mb, CEE_RET);
5276 res = mono_mb_create_and_cache (cache, klass,
5277 mb, sig, sig->param_count + 16);
5284 * mono_marshal_get_stfld_wrapper:
5285 * @type: the type of the field
5287 * This method generates a function which can be use to store a field with type
5288 * @type. The generated function has the following signature:
5289 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5292 mono_marshal_get_stfld_wrapper (MonoType *type)
5294 MonoMethodSignature *sig;
5295 MonoMethodBuilder *mb;
5302 type = mono_type_get_underlying_type (type);
5306 if (type->type == MONO_TYPE_SZARRAY) {
5307 klass = mono_defaults.array_class;
5308 } else if (type->type == MONO_TYPE_VALUETYPE) {
5309 klass = type->data.klass;
5310 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5311 klass = mono_defaults.object_class;
5312 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5313 klass = mono_defaults.int_class;
5314 } else if (t == MONO_TYPE_GENERICINST) {
5315 if (mono_type_generic_inst_is_valuetype (type))
5316 klass = mono_class_from_mono_type (type);
5318 klass = mono_defaults.object_class;
5320 klass = mono_class_from_mono_type (type);
5323 klass = mono_defaults.int_class;
5326 cache = klass->image->stfld_wrapper_cache;
5327 if ((res = mono_marshal_find_in_cache (cache, klass)))
5330 /* we add the %p pointer value of klass because class names are not unique */
5331 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5332 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5335 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5336 sig->params [0] = &mono_defaults.object_class->byval_arg;
5337 sig->params [1] = &mono_defaults.int_class->byval_arg;
5338 sig->params [2] = &mono_defaults.int_class->byval_arg;
5339 sig->params [3] = &mono_defaults.int_class->byval_arg;
5340 sig->params [4] = &klass->byval_arg;
5341 sig->ret = &mono_defaults.void_class->byval_arg;
5343 mono_mb_emit_ldarg (mb, 0);
5344 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5346 mono_mb_emit_ldarg (mb, 0);
5347 mono_mb_emit_ldarg (mb, 1);
5348 mono_mb_emit_ldarg (mb, 2);
5349 mono_mb_emit_ldarg (mb, 4);
5351 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5353 mono_mb_emit_byte (mb, CEE_RET);
5355 mono_mb_patch_branch (mb, pos);
5357 mono_mb_emit_ldarg (mb, 0);
5358 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5359 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5360 mono_mb_emit_ldarg (mb, 3);
5361 mono_mb_emit_byte (mb, CEE_ADD);
5362 mono_mb_emit_ldarg (mb, 4);
5367 case MONO_TYPE_BOOLEAN:
5368 case MONO_TYPE_CHAR:
5377 case MONO_TYPE_ARRAY:
5378 case MONO_TYPE_SZARRAY:
5379 case MONO_TYPE_OBJECT:
5380 case MONO_TYPE_CLASS:
5381 case MONO_TYPE_STRING:
5385 case MONO_TYPE_FNPTR:
5386 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5388 case MONO_TYPE_VALUETYPE:
5389 g_assert (!klass->enumtype);
5390 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5392 case MONO_TYPE_GENERICINST:
5393 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5396 g_warning ("type %x not implemented", type->type);
5397 g_assert_not_reached ();
5400 mono_mb_emit_byte (mb, CEE_RET);
5402 res = mono_mb_create_and_cache (cache, klass,
5403 mb, sig, sig->param_count + 16);
5410 * generates IL code for the icall wrapper (the generated method
5411 * calls the unmanaged code in func)
5414 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5416 MonoMethodSignature *csig;
5417 MonoMethodBuilder *mb;
5421 g_assert (sig->pinvoke);
5423 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5425 mb->method->save_lmf = 1;
5427 /* we copy the signature, so that we can modify it */
5430 mono_mb_emit_byte (mb, CEE_LDARG_0);
5432 for (i = 0; i < sig->param_count; i++)
5433 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5435 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5436 if (check_exceptions)
5437 emit_thread_interrupt_checkpoint (mb);
5438 mono_mb_emit_byte (mb, CEE_RET);
5440 csig = signature_dup (mono_defaults.corlib, sig);
5442 if (csig->call_convention == MONO_CALL_VARARG)
5443 csig->call_convention = 0;
5445 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5452 MonoMethodBuilder *mb;
5453 MonoMethodSignature *sig;
5454 MonoMethodPInvoke *piinfo;
5455 int *orig_conv_args; /* Locals containing the original values of byref args */
5457 MonoClass *retobj_class;
5458 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5459 MonoImage *image; /* The image to use for looking up custom marshallers */
5460 } EmitMarshalContext;
5464 * This is invoked to convert arguments from the current types to
5465 * the underlying types expected by the platform routine. If required,
5466 * the methods create a temporary variable with the proper type, and return
5467 * the location for it (either the passed argument, or the newly allocated
5470 MARSHAL_ACTION_CONV_IN,
5473 * This operation is called to push the actual value that was optionally
5474 * converted on the first stage
5476 MARSHAL_ACTION_PUSH,
5479 * Convert byref arguments back or free resources allocated during the
5482 MARSHAL_ACTION_CONV_OUT,
5485 * The result from the unmanaged call is at the top of the stack when
5486 * this action is invoked. The result should be stored in the
5487 * third local variable slot.
5489 MARSHAL_ACTION_CONV_RESULT,
5491 MARSHAL_ACTION_MANAGED_CONV_IN,
5492 MARSHAL_ACTION_MANAGED_CONV_OUT,
5493 MARSHAL_ACTION_MANAGED_CONV_RESULT
5497 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5498 MonoMarshalSpec *spec,
5499 int conv_arg, MonoType **conv_arg_type,
5500 MarshalAction action)
5504 static MonoClass *ICustomMarshaler = NULL;
5505 static MonoMethod *cleanup_native, *cleanup_managed;
5506 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5507 MonoMethod *get_instance;
5508 MonoMethodBuilder *mb = m->mb;
5509 char *exception_msg = NULL;
5513 if (!ICustomMarshaler) {
5514 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5515 g_assert (ICustomMarshaler);
5517 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5518 g_assert (cleanup_native);
5519 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5520 g_assert (cleanup_managed);
5521 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5522 g_assert (marshal_managed_to_native);
5523 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5524 g_assert (marshal_native_to_managed);
5527 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5528 g_assert (mtype != NULL);
5529 mklass = mono_class_from_mono_type (mtype);
5530 g_assert (mklass != NULL);
5532 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5533 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5535 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5537 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5538 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5539 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5540 (get_sig->params [0]->type != MONO_TYPE_STRING))
5541 get_instance = NULL;
5545 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);
5547 /* Throw exception and emit compensation code if neccesary */
5548 if (exception_msg) {
5550 case MARSHAL_ACTION_CONV_IN:
5551 case MARSHAL_ACTION_CONV_RESULT:
5552 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5553 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5554 mono_mb_emit_byte (mb, CEE_POP);
5556 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5557 g_free (exception_msg);
5560 case MARSHAL_ACTION_PUSH:
5561 mono_mb_emit_byte (mb, CEE_LDNULL);
5569 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5570 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5573 case MARSHAL_ACTION_CONV_IN:
5575 case MONO_TYPE_CLASS:
5576 case MONO_TYPE_OBJECT:
5577 case MONO_TYPE_STRING:
5578 case MONO_TYPE_ARRAY:
5579 case MONO_TYPE_SZARRAY:
5580 case MONO_TYPE_VALUETYPE:
5584 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5585 g_assert_not_reached ();
5589 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5591 mono_mb_emit_byte (mb, CEE_LDNULL);
5592 mono_mb_emit_stloc (mb, conv_arg);
5594 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5597 /* Minic MS.NET behavior */
5598 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5601 /* Check for null */
5602 mono_mb_emit_ldarg (mb, argnum);
5604 mono_mb_emit_byte (mb, CEE_LDIND_I);
5605 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5607 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5609 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5611 mono_mb_emit_ldarg (mb, argnum);
5613 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5615 if (t->type == MONO_TYPE_VALUETYPE) {
5617 * Since we can't determine the type of the argument, we
5618 * will assume the unmanaged function takes a pointer.
5620 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5622 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5625 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5626 mono_mb_emit_stloc (mb, conv_arg);
5628 mono_mb_patch_branch (mb, pos2);
5631 case MARSHAL_ACTION_CONV_OUT:
5632 /* Check for null */
5633 mono_mb_emit_ldloc (mb, conv_arg);
5634 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5637 mono_mb_emit_ldarg (mb, argnum);
5639 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5641 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5643 mono_mb_emit_ldloc (mb, conv_arg);
5644 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5645 mono_mb_emit_byte (mb, CEE_STIND_REF);
5646 } else if (t->attrs &PARAM_ATTRIBUTE_OUT) {
5647 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5649 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5651 mono_mb_emit_ldloc (mb, conv_arg);
5652 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5654 /* We have nowhere to store the result */
5655 mono_mb_emit_byte (mb, CEE_POP);
5658 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5660 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5662 mono_mb_emit_ldloc (mb, conv_arg);
5664 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5666 mono_mb_patch_branch (mb, pos2);
5669 case MARSHAL_ACTION_PUSH:
5671 mono_mb_emit_ldloc_addr (mb, conv_arg);
5673 mono_mb_emit_ldloc (mb, conv_arg);
5676 case MARSHAL_ACTION_CONV_RESULT:
5677 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5679 mono_mb_emit_stloc (mb, 3);
5681 mono_mb_emit_ldloc (mb, 3);
5682 mono_mb_emit_stloc (mb, loc1);
5684 /* Check for null */
5685 mono_mb_emit_ldloc (mb, 3);
5686 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5688 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5690 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5691 mono_mb_emit_byte (mb, CEE_DUP);
5693 mono_mb_emit_ldloc (mb, 3);
5694 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5695 mono_mb_emit_stloc (mb, 3);
5697 mono_mb_emit_ldloc (mb, loc1);
5698 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5700 mono_mb_patch_branch (mb, pos2);
5703 case MARSHAL_ACTION_MANAGED_CONV_IN:
5704 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5706 mono_mb_emit_byte (mb, CEE_LDNULL);
5707 mono_mb_emit_stloc (mb, conv_arg);
5709 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5712 /* Check for null */
5713 mono_mb_emit_ldarg (mb, argnum);
5715 mono_mb_emit_byte (mb, CEE_LDIND_I);
5716 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5718 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5719 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5721 mono_mb_emit_ldarg (mb, argnum);
5723 mono_mb_emit_byte (mb, CEE_LDIND_I);
5725 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5726 mono_mb_emit_stloc (mb, conv_arg);
5728 mono_mb_patch_branch (mb, pos2);
5731 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5732 g_assert (!t->byref);
5734 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5736 mono_mb_emit_stloc (mb, 3);
5738 mono_mb_emit_ldloc (mb, 3);
5739 mono_mb_emit_stloc (mb, loc1);
5741 /* Check for null */
5742 mono_mb_emit_ldloc (mb, 3);
5743 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5745 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5746 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5747 mono_mb_emit_byte (mb, CEE_DUP);
5749 mono_mb_emit_ldloc (mb, 3);
5750 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5751 mono_mb_emit_stloc (mb, 3);
5753 mono_mb_emit_ldloc (mb, loc1);
5754 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5756 mono_mb_patch_branch (mb, pos2);
5759 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5761 /* Check for null */
5762 mono_mb_emit_ldloc (mb, conv_arg);
5763 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5766 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5770 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5772 mono_mb_emit_ldloc (mb, conv_arg);
5773 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5774 mono_mb_emit_byte (mb, CEE_STIND_I);
5777 /* Call CleanUpManagedData */
5778 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5780 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5782 mono_mb_emit_ldloc (mb, conv_arg);
5783 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5785 mono_mb_patch_branch (mb, pos2);
5789 g_assert_not_reached ();
5796 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5797 MonoMarshalSpec *spec,
5798 int conv_arg, MonoType **conv_arg_type,
5799 MarshalAction action)
5801 MonoMethodBuilder *mb = m->mb;
5804 case MARSHAL_ACTION_CONV_IN: {
5805 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5807 g_assert (t->type == MONO_TYPE_OBJECT);
5808 g_assert (!t->byref);
5810 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5811 mono_mb_emit_ldarg (mb, argnum);
5812 mono_mb_emit_icon (mb, encoding);
5813 mono_mb_emit_icon (mb, t->attrs);
5814 mono_mb_emit_icall (mb, mono_marshal_asany);
5815 mono_mb_emit_stloc (mb, conv_arg);
5819 case MARSHAL_ACTION_PUSH:
5820 mono_mb_emit_ldloc (mb, conv_arg);
5823 case MARSHAL_ACTION_CONV_OUT: {
5824 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5826 mono_mb_emit_ldarg (mb, argnum);
5827 mono_mb_emit_ldloc (mb, conv_arg);
5828 mono_mb_emit_icon (mb, encoding);
5829 mono_mb_emit_icon (mb, t->attrs);
5830 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5835 g_assert_not_reached ();
5842 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5843 MonoMarshalSpec *spec,
5844 int conv_arg, MonoType **conv_arg_type,
5845 MarshalAction action)
5847 MonoMethodBuilder *mb = m->mb;
5851 klass = t->data.klass;
5854 case MARSHAL_ACTION_CONV_IN:
5855 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5856 klass->blittable || klass->enumtype)
5859 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5861 /* store the address of the source into local variable 0 */
5863 mono_mb_emit_ldarg (mb, argnum);
5865 mono_mb_emit_ldarg_addr (mb, argnum);
5867 mono_mb_emit_stloc (mb, 0);
5869 /* allocate space for the native struct and
5870 * store the address into local variable 1 (dest) */
5871 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5872 mono_mb_emit_byte (mb, CEE_PREFIX1);
5873 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5874 mono_mb_emit_stloc (mb, conv_arg);
5877 mono_mb_emit_ldloc (mb, 0);
5878 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5881 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5883 mono_mb_emit_ldloc (mb, conv_arg);
5884 mono_mb_emit_stloc (mb, 1);
5886 /* emit valuetype conversion code */
5887 emit_struct_conv (mb, klass, FALSE);
5891 mono_mb_patch_branch (mb, pos);
5894 case MARSHAL_ACTION_PUSH:
5895 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5897 g_assert (!t->byref);
5899 /* Have to change the signature since the vtype is passed byref */
5900 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5902 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5903 klass->blittable || klass->enumtype)
5904 mono_mb_emit_ldarg_addr (mb, argnum);
5906 mono_mb_emit_ldloc (mb, conv_arg);
5910 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5911 klass->blittable || klass->enumtype) {
5912 mono_mb_emit_ldarg (mb, argnum);
5915 mono_mb_emit_ldloc (mb, conv_arg);
5917 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5918 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5922 case MARSHAL_ACTION_CONV_OUT:
5923 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5924 klass->blittable || klass->enumtype)
5928 /* dst = argument */
5929 mono_mb_emit_ldarg (mb, argnum);
5930 mono_mb_emit_stloc (mb, 1);
5932 mono_mb_emit_ldloc (mb, 1);
5933 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5935 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5936 /* src = tmp_locals [i] */
5937 mono_mb_emit_ldloc (mb, conv_arg);
5938 mono_mb_emit_stloc (mb, 0);
5940 /* emit valuetype conversion code */
5941 emit_struct_conv (mb, klass, TRUE);
5945 emit_struct_free (mb, klass, conv_arg);
5948 mono_mb_patch_branch (mb, pos);
5951 case MARSHAL_ACTION_CONV_RESULT:
5952 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5954 mono_mb_emit_stloc (mb, 3);
5957 /* load pointer to returned value type */
5958 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5959 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5960 /* store the address of the source into local variable 0 */
5961 mono_mb_emit_stloc (mb, 0);
5963 mono_mb_emit_ldloc_addr (mb, 3);
5964 mono_mb_emit_stloc (mb, 1);
5966 /* emit valuetype conversion code */
5967 emit_struct_conv (mb, klass, TRUE);
5970 case MARSHAL_ACTION_MANAGED_CONV_IN:
5971 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5972 klass->blittable || klass->enumtype) {
5977 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5979 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5983 mono_mb_emit_ldarg (mb, argnum);
5985 mono_mb_emit_ldarg_addr (mb, argnum);
5986 mono_mb_emit_stloc (mb, 0);
5989 mono_mb_emit_ldloc (mb, 0);
5990 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5993 mono_mb_emit_ldloc_addr (mb, conv_arg);
5994 mono_mb_emit_stloc (mb, 1);
5996 /* emit valuetype conversion code */
5997 emit_struct_conv (mb, klass, TRUE);
6000 mono_mb_patch_branch (mb, pos);
6003 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6004 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6005 klass->blittable || klass->enumtype) {
6009 /* Check for null */
6010 mono_mb_emit_ldarg (mb, argnum);
6011 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6014 mono_mb_emit_ldloc_addr (mb, conv_arg);
6015 mono_mb_emit_stloc (mb, 0);
6018 mono_mb_emit_ldarg (mb, argnum);
6019 mono_mb_emit_stloc (mb, 1);
6021 /* emit valuetype conversion code */
6022 emit_struct_conv (mb, klass, FALSE);
6024 mono_mb_patch_branch (mb, pos2);
6027 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6028 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6029 klass->blittable || klass->enumtype) {
6030 mono_mb_emit_stloc (mb, 3);
6035 /* load pointer to returned value type */
6036 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6037 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6039 /* store the address of the source into local variable 0 */
6040 mono_mb_emit_stloc (mb, 0);
6041 /* allocate space for the native struct and
6042 * store the address into dst_ptr */
6043 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6044 m->retobj_class = klass;
6045 g_assert (m->retobj_var);
6046 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6047 mono_mb_emit_byte (mb, CEE_CONV_I);
6048 mono_mb_emit_icall (mb, mono_marshal_alloc);
6049 mono_mb_emit_stloc (mb, 1);
6050 mono_mb_emit_ldloc (mb, 1);
6051 mono_mb_emit_stloc (mb, m->retobj_var);
6053 /* emit valuetype conversion code */
6054 emit_struct_conv (mb, klass, FALSE);
6058 g_assert_not_reached ();
6065 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6066 MonoMarshalSpec *spec,
6067 int conv_arg, MonoType **conv_arg_type,
6068 MarshalAction action)
6070 MonoMethodBuilder *mb = m->mb;
6071 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6072 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6076 case MARSHAL_ACTION_CONV_IN:
6077 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6078 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6081 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6084 mono_mb_emit_ldarg (mb, argnum);
6085 mono_mb_emit_byte (mb, CEE_LDIND_I);
6087 mono_mb_emit_ldarg (mb, argnum);
6091 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6092 MonoException *exc = mono_get_exception_not_implemented (msg);
6095 mono_raise_exception (exc);
6098 mono_mb_emit_icall (mb, conv_to_icall (conv));
6100 mono_mb_emit_stloc (mb, conv_arg);
6103 case MARSHAL_ACTION_CONV_OUT:
6104 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6106 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6107 mono_mb_emit_exception_marshal_directive (mb, msg);
6111 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6112 mono_mb_emit_ldarg (mb, argnum);
6113 mono_mb_emit_ldloc (mb, conv_arg);
6114 mono_mb_emit_icall (mb, conv_to_icall (conv));
6115 mono_mb_emit_byte (mb, CEE_STIND_REF);
6119 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6120 mono_mb_emit_ldloc (mb, conv_arg);
6121 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6122 mono_mb_emit_icall (mb, mono_free_bstr);
6124 mono_mb_emit_icall (mb, mono_marshal_free);
6128 case MARSHAL_ACTION_PUSH:
6130 mono_mb_emit_ldloc_addr (mb, conv_arg);
6132 mono_mb_emit_ldloc (mb, conv_arg);
6135 case MARSHAL_ACTION_CONV_RESULT:
6136 mono_mb_emit_stloc (mb, 0);
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 mono_mb_emit_ldloc (mb, 0);
6146 mono_mb_emit_icall (mb, conv_to_icall (conv));
6147 mono_mb_emit_stloc (mb, 3);
6149 /* free the string */
6150 mono_mb_emit_ldloc (mb, 0);
6151 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6152 mono_mb_emit_icall (mb, mono_free_bstr);
6154 mono_mb_emit_icall (mb, g_free);
6157 case MARSHAL_ACTION_MANAGED_CONV_IN:
6163 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6164 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6166 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6168 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6169 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 mono_mb_emit_ldarg (mb, argnum);
6174 mono_mb_emit_icall (mb, conv_to_icall (conv));
6175 mono_mb_emit_stloc (mb, conv_arg);
6178 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6179 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6180 /* We need to make a copy so the caller is able to free it */
6181 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6183 mono_mb_emit_icall (mb, conv_to_icall (conv));
6184 mono_mb_emit_stloc (mb, 3);
6188 g_assert_not_reached ();
6195 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6196 MonoMarshalSpec *spec, int conv_arg,
6197 MonoType **conv_arg_type, MarshalAction action)
6199 MonoMethodBuilder *mb = m->mb;
6202 case MARSHAL_ACTION_CONV_IN: {
6203 MonoType *intptr_type;
6204 int dar_release_slot, pos;
6206 intptr_type = &mono_defaults.int_class->byval_arg;
6207 conv_arg = mono_mb_add_local (mb, intptr_type);
6208 *conv_arg_type = intptr_type;
6210 if (!sh_dangerous_add_ref)
6211 init_safe_handle ();
6213 mono_mb_emit_ldarg (mb, argnum);
6214 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6215 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6217 mono_mb_patch_branch (mb, pos);
6220 * My tests in show that ref SafeHandles are not really
6221 * passed as ref objects. Instead a NULL is passed as the
6224 mono_mb_emit_icon (mb, 0);
6225 mono_mb_emit_stloc (mb, conv_arg);
6229 /* Create local to hold the ref parameter to DangerousAddRef */
6230 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6232 /* set release = false; */
6233 mono_mb_emit_icon (mb, 0);
6234 mono_mb_emit_stloc (mb, dar_release_slot);
6236 /* safehandle.DangerousAddRef (ref release) */
6237 mono_mb_emit_ldarg (mb, argnum);
6238 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6239 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6241 /* Pull the handle field from SafeHandle */
6242 mono_mb_emit_ldarg (mb, argnum);
6243 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6244 mono_mb_emit_byte (mb, CEE_LDIND_I);
6245 mono_mb_emit_stloc (mb, conv_arg);
6250 case MARSHAL_ACTION_PUSH:
6252 mono_mb_emit_ldloc_addr (mb, conv_arg);
6254 mono_mb_emit_ldloc (mb, conv_arg);
6257 case MARSHAL_ACTION_CONV_OUT: {
6258 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6259 int dar_release_slot = conv_arg + 1;
6262 if (!sh_dangerous_release)
6263 init_safe_handle ();
6269 * My tests indicate that ref SafeHandles parameters are not actually
6270 * passed by ref, but instead a new Handle is created regardless of
6271 * whether a change happens in the unmanaged side.
6273 * Also, the Handle is created before calling into unmanaged code,
6274 * but we do not support that mechanism (getting to the original
6275 * handle) and it makes no difference where we create this
6277 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6279 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6282 /* refval = new SafeHandleDerived ()*/
6283 mono_mb_emit_ldarg (mb, argnum);
6284 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6285 mono_mb_emit_byte (mb, CEE_STIND_REF);
6287 /* refval.handle = returned_handle */
6288 mono_mb_emit_ldarg (mb, argnum);
6289 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6290 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6291 mono_mb_emit_ldloc (mb, conv_arg);
6292 mono_mb_emit_byte (mb, CEE_STIND_I);
6294 mono_mb_emit_ldloc (mb, dar_release_slot);
6295 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6296 mono_mb_emit_ldarg (mb, argnum);
6297 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6298 mono_mb_patch_branch (mb, label_next);
6303 case MARSHAL_ACTION_CONV_RESULT: {
6304 MonoMethod *ctor = NULL;
6305 int intptr_handle_slot;
6307 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6308 mono_mb_emit_byte (mb, CEE_POP);
6309 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6313 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6315 mono_mb_emit_byte (mb, CEE_POP);
6316 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6319 /* Store the IntPtr results into a local */
6320 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6321 mono_mb_emit_stloc (mb, intptr_handle_slot);
6323 /* Create return value */
6324 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6325 mono_mb_emit_stloc (mb, 3);
6327 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6328 mono_mb_emit_ldloc (mb, 3);
6329 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6330 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6331 mono_mb_emit_byte (mb, CEE_STIND_I);
6335 case MARSHAL_ACTION_MANAGED_CONV_IN:
6336 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6339 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6340 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6343 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6344 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6347 printf ("Unhandled case for MarshalAction: %d\n", action);
6354 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6355 MonoMarshalSpec *spec, int conv_arg,
6356 MonoType **conv_arg_type, MarshalAction action)
6358 MonoMethodBuilder *mb = m->mb;
6361 case MARSHAL_ACTION_CONV_IN: {
6362 MonoType *intptr_type;
6364 intptr_type = &mono_defaults.int_class->byval_arg;
6365 conv_arg = mono_mb_add_local (mb, intptr_type);
6366 *conv_arg_type = intptr_type;
6369 mono_mb_emit_exception_marshal_directive (mb,
6370 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6373 mono_mb_emit_ldarg_addr (mb, argnum);
6374 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6375 mono_mb_emit_byte (mb, CEE_ADD);
6376 mono_mb_emit_byte (mb, CEE_LDIND_I);
6377 mono_mb_emit_stloc (mb, conv_arg);
6381 case MARSHAL_ACTION_PUSH:
6382 mono_mb_emit_ldloc (mb, conv_arg);
6385 case MARSHAL_ACTION_CONV_OUT: {
6386 /* no resource release required */
6390 case MARSHAL_ACTION_CONV_RESULT: {
6391 mono_mb_emit_exception_marshal_directive (mb,
6392 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6396 case MARSHAL_ACTION_MANAGED_CONV_IN:
6397 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6400 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6401 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6404 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6405 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6408 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6415 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6416 MonoMarshalSpec *spec,
6417 int conv_arg, MonoType **conv_arg_type,
6418 MarshalAction action)
6420 MonoMethodBuilder *mb = m->mb;
6421 MonoClass *klass = t->data.klass;
6424 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6425 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6429 case MARSHAL_ACTION_CONV_IN:
6430 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6431 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6433 m->orig_conv_args [argnum] = 0;
6435 if (klass->delegate) {
6436 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6437 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6438 mono_mb_emit_exception_marshal_directive (mb, msg);
6440 mono_mb_emit_ldarg (mb, argnum);
6441 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6442 mono_mb_emit_stloc (mb, conv_arg);
6444 } else if (klass == mono_defaults.stringbuilder_class) {
6445 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6446 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6448 g_assert (!t->byref);
6449 mono_mb_emit_ldarg (mb, argnum);
6452 mono_mb_emit_icall (mb, conv_to_icall (conv));
6454 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6455 MonoException *exc = mono_get_exception_not_implemented (msg);
6458 mono_raise_exception (exc);
6461 mono_mb_emit_stloc (mb, conv_arg);
6462 } else if (klass->blittable) {
6463 mono_mb_emit_byte (mb, CEE_LDNULL);
6464 mono_mb_emit_stloc (mb, conv_arg);
6466 mono_mb_emit_ldarg (mb, argnum);
6467 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6469 mono_mb_emit_ldarg (mb, argnum);
6470 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6471 mono_mb_emit_stloc (mb, conv_arg);
6473 mono_mb_patch_branch (mb, pos);
6476 mono_mb_emit_byte (mb, CEE_LDNULL);
6477 mono_mb_emit_stloc (mb, conv_arg);
6480 /* we dont need any conversions for out parameters */
6481 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6484 mono_mb_emit_ldarg (mb, argnum);
6485 mono_mb_emit_byte (mb, CEE_LDIND_I);
6488 mono_mb_emit_ldarg (mb, argnum);
6489 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6490 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6493 /* store the address of the source into local variable 0 */
6494 mono_mb_emit_stloc (mb, 0);
6495 mono_mb_emit_ldloc (mb, 0);
6496 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6498 /* allocate space for the native struct and store the address */
6499 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6500 mono_mb_emit_byte (mb, CEE_PREFIX1);
6501 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6502 mono_mb_emit_stloc (mb, conv_arg);
6505 /* Need to store the original buffer so we can free it later */
6506 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6507 mono_mb_emit_ldloc (mb, conv_arg);
6508 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6511 /* set the src_ptr */
6512 mono_mb_emit_ldloc (mb, 0);
6513 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6514 mono_mb_emit_stloc (mb, 0);
6517 mono_mb_emit_ldloc (mb, conv_arg);
6518 mono_mb_emit_stloc (mb, 1);
6520 /* emit valuetype conversion code */
6521 emit_struct_conv (mb, klass, FALSE);
6523 mono_mb_patch_branch (mb, pos);
6527 case MARSHAL_ACTION_CONV_OUT:
6528 if (klass == mono_defaults.stringbuilder_class) {
6530 MonoMarshalNative encoding;
6531 MonoMarshalConv conv;
6533 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6534 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6536 g_assert (!t->byref);
6537 g_assert (encoding != -1);
6539 mono_mb_emit_ldarg (mb, argnum);
6540 mono_mb_emit_ldloc (mb, conv_arg);
6542 mono_mb_emit_icall (mb, conv_to_icall (conv));
6545 mono_mb_emit_ldloc (mb, conv_arg);
6546 mono_mb_emit_icall (mb, mono_marshal_free);
6551 if (klass->delegate) {
6553 mono_mb_emit_ldarg (mb, argnum);
6554 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6555 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6556 mono_mb_emit_ldloc (mb, conv_arg);
6557 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6558 mono_mb_emit_byte (mb, CEE_STIND_REF);
6563 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6564 /* allocate a new object */
6565 mono_mb_emit_ldarg (mb, argnum);
6566 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6567 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6568 mono_mb_emit_byte (mb, CEE_STIND_REF);
6571 /* dst = *argument */
6572 mono_mb_emit_ldarg (mb, argnum);
6575 mono_mb_emit_byte (mb, CEE_LDIND_I);
6577 mono_mb_emit_stloc (mb, 1);
6579 mono_mb_emit_ldloc (mb, 1);
6580 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6582 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6583 mono_mb_emit_ldloc (mb, 1);
6584 mono_mb_emit_icon (mb, sizeof (MonoObject));
6585 mono_mb_emit_byte (mb, CEE_ADD);
6586 mono_mb_emit_stloc (mb, 1);
6588 /* src = tmp_locals [i] */
6589 mono_mb_emit_ldloc (mb, conv_arg);
6590 mono_mb_emit_stloc (mb, 0);
6592 /* emit valuetype conversion code */
6593 emit_struct_conv (mb, t->data.klass, TRUE);
6595 /* Free the structure returned by the native code */
6596 emit_struct_free (mb, klass, conv_arg);
6598 if (m->orig_conv_args [argnum]) {
6600 * If the native function changed the pointer, then free
6601 * the original structure plus the new pointer.
6603 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6604 mono_mb_emit_ldloc (mb, conv_arg);
6605 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6607 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6608 g_assert (m->orig_conv_args [argnum]);
6610 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6613 mono_mb_emit_ldloc (mb, conv_arg);
6614 mono_mb_emit_icall (mb, g_free);
6616 mono_mb_patch_branch (mb, pos2);
6620 /* Free the original structure passed to native code */
6621 emit_struct_free (mb, klass, conv_arg);
6623 mono_mb_patch_branch (mb, pos);
6626 case MARSHAL_ACTION_PUSH:
6628 mono_mb_emit_ldloc_addr (mb, conv_arg);
6630 mono_mb_emit_ldloc (mb, conv_arg);
6633 case MARSHAL_ACTION_CONV_RESULT:
6634 if (klass->delegate) {
6635 g_assert (!t->byref);
6636 mono_mb_emit_stloc (mb, 0);
6637 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6638 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6639 mono_mb_emit_ldloc (mb, 0);
6640 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6641 mono_mb_emit_stloc (mb, 3);
6644 mono_mb_emit_stloc (mb, 0);
6646 /* Make a copy since emit_conv modifies local 0 */
6647 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6648 mono_mb_emit_ldloc (mb, 0);
6649 mono_mb_emit_stloc (mb, loc);
6651 mono_mb_emit_byte (mb, CEE_LDNULL);
6652 mono_mb_emit_stloc (mb, 3);
6654 mono_mb_emit_ldloc (mb, 0);
6655 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6657 /* allocate result object */
6659 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6660 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6661 mono_mb_emit_stloc (mb, 3);
6665 mono_mb_emit_ldloc (mb, 3);
6666 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6667 mono_mb_emit_stloc (mb, 1);
6669 /* emit conversion code */
6670 emit_struct_conv (mb, klass, TRUE);
6672 emit_struct_free (mb, klass, loc);
6674 /* Free the pointer allocated by unmanaged code */
6675 mono_mb_emit_ldloc (mb, loc);
6676 mono_mb_emit_icall (mb, g_free);
6677 mono_mb_patch_branch (mb, pos);
6681 case MARSHAL_ACTION_MANAGED_CONV_IN:
6682 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6684 if (klass->delegate) {
6685 g_assert (!t->byref);
6686 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6687 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6688 mono_mb_emit_ldarg (mb, argnum);
6689 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6690 mono_mb_emit_stloc (mb, conv_arg);
6694 /* The class can not have an automatic layout */
6695 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6696 mono_mb_emit_auto_layout_exception (mb, klass);
6700 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6701 mono_mb_emit_byte (mb, CEE_LDNULL);
6702 mono_mb_emit_stloc (mb, conv_arg);
6707 mono_mb_emit_ldarg (mb, argnum);
6711 /* Check for NULL and raise an exception */
6712 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6714 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6716 mono_mb_patch_branch (mb, pos2);
6717 mono_mb_emit_ldarg (mb, argnum);
6718 mono_mb_emit_byte (mb, CEE_LDIND_I);
6721 mono_mb_emit_stloc (mb, 0);
6723 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6724 mono_mb_emit_stloc (mb, conv_arg);
6726 mono_mb_emit_ldloc (mb, 0);
6727 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6729 /* Create and set dst */
6730 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6731 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6732 mono_mb_emit_stloc (mb, conv_arg);
6733 mono_mb_emit_ldloc (mb, conv_arg);
6734 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6735 mono_mb_emit_stloc (mb, 1);
6737 /* emit valuetype conversion code */
6738 emit_struct_conv (mb, klass, TRUE);
6740 mono_mb_patch_branch (mb, pos);
6743 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6745 /* Check for null */
6746 mono_mb_emit_ldloc (mb, conv_arg);
6747 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6748 mono_mb_emit_ldarg (mb, argnum);
6749 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6750 mono_mb_emit_byte (mb, CEE_STIND_REF);
6751 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6753 mono_mb_patch_branch (mb, pos);
6756 mono_mb_emit_ldloc (mb, conv_arg);
6757 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6758 mono_mb_emit_stloc (mb, 0);
6760 /* Allocate and set dest */
6761 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6762 mono_mb_emit_byte (mb, CEE_CONV_I);
6763 mono_mb_emit_icall (mb, mono_marshal_alloc);
6764 mono_mb_emit_stloc (mb, 1);
6766 /* Update argument pointer */
6767 mono_mb_emit_ldarg (mb, argnum);
6768 mono_mb_emit_ldloc (mb, 1);
6769 mono_mb_emit_byte (mb, CEE_STIND_I);
6771 /* emit valuetype conversion code */
6772 emit_struct_conv (mb, klass, FALSE);
6774 mono_mb_patch_branch (mb, pos2);
6776 /* byval [Out] marshalling */
6778 /* FIXME: Handle null */
6781 mono_mb_emit_ldloc (mb, conv_arg);
6782 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6783 mono_mb_emit_stloc (mb, 0);
6786 mono_mb_emit_ldarg (mb, argnum);
6787 mono_mb_emit_stloc (mb, 1);
6789 /* emit valuetype conversion code */
6790 emit_struct_conv (mb, klass, FALSE);
6794 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6795 if (klass->delegate) {
6796 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6797 mono_mb_emit_stloc (mb, 3);
6801 /* The class can not have an automatic layout */
6802 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6803 mono_mb_emit_auto_layout_exception (mb, klass);
6807 mono_mb_emit_stloc (mb, 0);
6808 /* Check for null */
6809 mono_mb_emit_ldloc (mb, 0);
6810 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6811 mono_mb_emit_byte (mb, CEE_LDNULL);
6812 mono_mb_emit_stloc (mb, 3);
6813 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6815 mono_mb_patch_branch (mb, pos);
6818 mono_mb_emit_ldloc (mb, 0);
6819 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6820 mono_mb_emit_stloc (mb, 0);
6822 /* Allocate and set dest */
6823 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6824 mono_mb_emit_byte (mb, CEE_CONV_I);
6825 mono_mb_emit_icall (mb, mono_marshal_alloc);
6826 mono_mb_emit_byte (mb, CEE_DUP);
6827 mono_mb_emit_stloc (mb, 1);
6828 mono_mb_emit_stloc (mb, 3);
6830 emit_struct_conv (mb, klass, FALSE);
6832 mono_mb_patch_branch (mb, pos2);
6836 g_assert_not_reached ();
6843 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
6844 MonoMarshalSpec *spec,
6845 int conv_arg, MonoType **conv_arg_type,
6846 MarshalAction action)
6848 MonoMethodBuilder *mb = m->mb;
6849 MonoClass *klass = t->data.klass;
6850 static MonoMethod* get_object_for_iunknown = NULL;
6851 static MonoMethod* get_iunknown_for_object_internal = NULL;
6852 static MonoMethod* get_com_interface_for_object_internal = NULL;
6853 static MonoMethod* get_idispatch_for_object_internal = NULL;
6854 static MonoMethod* marshal_release = NULL;
6855 static MonoMethod* AddRef = NULL;
6856 if (!get_object_for_iunknown)
6857 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
6858 if (!get_iunknown_for_object_internal)
6859 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
6860 if (!get_idispatch_for_object_internal)
6861 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
6862 if (!get_com_interface_for_object_internal)
6863 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
6864 if (!marshal_release)
6865 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
6867 /* COM types are initialized lazily */
6868 mono_init_com_types ();
6871 case MARSHAL_ACTION_CONV_IN: {
6872 guint32 pos_null = 0;
6874 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6875 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6877 mono_mb_emit_ptr (mb, NULL);
6878 mono_mb_emit_stloc (mb, conv_arg);
6880 /* we dont need any conversions for out parameters */
6881 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6884 mono_mb_emit_ldarg (mb, argnum);
6886 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6887 /* if null just break, conv arg was already inited to 0 */
6888 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6890 mono_mb_emit_ldarg (mb, argnum);
6892 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6894 if (klass && klass != mono_defaults.object_class) {
6895 mono_mb_emit_ptr (mb, t);
6896 mono_mb_emit_icall (mb, type_from_handle);
6897 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
6899 else if (spec->native == MONO_NATIVE_IUNKNOWN)
6900 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6901 else if (spec->native == MONO_NATIVE_IDISPATCH)
6902 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
6903 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
6904 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6906 g_assert_not_reached ();
6907 mono_mb_emit_stloc (mb, conv_arg);
6908 mono_mb_patch_short_branch (mb, pos_null);
6912 case MARSHAL_ACTION_CONV_OUT: {
6913 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6915 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
6916 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6918 mono_mb_emit_ldarg (mb, argnum);
6919 mono_mb_emit_byte (mb, CEE_LDNULL);
6920 mono_mb_emit_byte (mb, CEE_STIND_REF);
6922 mono_mb_emit_ldloc (mb, conv_arg);
6923 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6925 mono_mb_emit_ldloc (mb, conv_arg);
6926 mono_mb_emit_icon (mb, TRUE);
6927 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
6928 mono_mb_emit_stloc (mb, ccw_obj);
6929 mono_mb_emit_ldloc (mb, ccw_obj);
6930 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
6932 mono_mb_emit_ldarg (mb, argnum);
6933 mono_mb_emit_ldloc (mb, conv_arg);
6934 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
6936 if (klass && klass != mono_defaults.object_class)
6937 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6938 mono_mb_emit_byte (mb, CEE_STIND_REF);
6940 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
6942 /* is already managed object */
6943 mono_mb_patch_short_branch (mb, pos_ccw);
6944 mono_mb_emit_ldarg (mb, argnum);
6945 mono_mb_emit_ldloc (mb, ccw_obj);
6947 if (klass && klass != mono_defaults.object_class)
6948 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6949 mono_mb_emit_byte (mb, CEE_STIND_REF);
6951 mono_mb_patch_short_branch (mb, pos_end);
6953 /* need to call Release to follow COM rules of ownership */
6954 mono_mb_emit_ldloc (mb, conv_arg);
6955 mono_mb_emit_managed_call (mb, marshal_release, NULL);
6956 mono_mb_emit_byte (mb, CEE_POP);
6959 mono_mb_patch_short_branch (mb, pos_null);
6963 case MARSHAL_ACTION_PUSH:
6965 mono_mb_emit_ldloc_addr (mb, conv_arg);
6967 mono_mb_emit_ldloc (mb, conv_arg);
6970 case MARSHAL_ACTION_CONV_RESULT: {
6971 int ccw_obj, ret_ptr;
6972 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
6973 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6974 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6976 /* store return value */
6977 mono_mb_emit_stloc (mb, ret_ptr);
6979 mono_mb_emit_ldloc (mb, ret_ptr);
6980 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6982 mono_mb_emit_ldloc (mb, ret_ptr);
6983 mono_mb_emit_icon (mb, TRUE);
6984 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
6985 mono_mb_emit_stloc (mb, ccw_obj);
6986 mono_mb_emit_ldloc (mb, ccw_obj);
6987 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
6989 mono_mb_emit_ldloc (mb, ret_ptr);
6990 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
6992 if (klass && klass != mono_defaults.object_class)
6993 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6994 mono_mb_emit_stloc (mb, 3);
6996 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
6998 /* is already managed object */
6999 mono_mb_patch_short_branch (mb, pos_ccw);
7000 mono_mb_emit_ldloc (mb, ccw_obj);
7002 if (klass && klass != mono_defaults.object_class)
7003 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7004 mono_mb_emit_stloc (mb, 3);
7006 mono_mb_patch_short_branch (mb, pos_end);
7008 /* need to call Release to follow COM rules of ownership */
7009 mono_mb_emit_ldloc (mb, ret_ptr);
7010 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7011 mono_mb_emit_byte (mb, CEE_POP);
7014 mono_mb_patch_short_branch (mb, pos_null);
7018 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7020 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7021 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7023 klass = mono_class_from_mono_type (t);
7024 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7025 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7027 mono_mb_emit_byte (mb, CEE_LDNULL);
7028 mono_mb_emit_stloc (mb, conv_arg);
7029 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7032 mono_mb_emit_ldarg (mb, argnum);
7034 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7035 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7037 mono_mb_emit_ldarg (mb, argnum);
7039 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7040 mono_mb_emit_icon (mb, TRUE);
7041 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7042 mono_mb_emit_stloc (mb, ccw_obj);
7043 mono_mb_emit_ldloc (mb, ccw_obj);
7044 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7047 mono_mb_emit_ldarg (mb, argnum);
7049 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7050 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7052 if (klass && klass != mono_defaults.object_class)
7053 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7054 mono_mb_emit_stloc (mb, conv_arg);
7055 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7057 /* is already managed object */
7058 mono_mb_patch_short_branch (mb, pos_ccw);
7059 mono_mb_emit_ldloc (mb, ccw_obj);
7060 if (klass && klass != mono_defaults.object_class)
7061 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7062 mono_mb_emit_stloc (mb, conv_arg);
7064 mono_mb_patch_short_branch (mb, pos_end);
7066 mono_mb_patch_short_branch (mb, pos_null);
7070 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7071 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7072 guint32 pos_null = 0;
7075 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7077 mono_mb_emit_ldloc (mb, conv_arg);
7078 /* if null just break, conv arg was already inited to 0 */
7079 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7081 /* to store later */
7082 mono_mb_emit_ldarg (mb, argnum);
7083 mono_mb_emit_ldloc (mb, conv_arg);
7084 if (klass && klass != mono_defaults.object_class) {
7085 mono_mb_emit_ptr (mb, t);
7086 mono_mb_emit_icall (mb, type_from_handle);
7087 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7089 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7090 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7091 else if (spec->native == MONO_NATIVE_IDISPATCH)
7092 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7093 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7094 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7096 g_assert_not_reached ();
7097 mono_mb_emit_byte (mb, CEE_STIND_I);
7099 mono_mb_emit_ldarg (mb, argnum);
7100 mono_mb_emit_byte (mb, CEE_LDIND_I);
7101 mono_mb_emit_managed_call (mb, AddRef, NULL);
7102 mono_mb_emit_byte (mb, CEE_POP);
7104 mono_mb_patch_short_branch (mb, pos_null);
7109 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7110 guint32 pos_null = 0;
7112 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7115 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7117 /* store return value */
7118 mono_mb_emit_stloc (mb, ccw_obj);
7120 mono_mb_emit_ldloc (mb, ccw_obj);
7122 /* if null just break, conv arg was already inited to 0 */
7123 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7125 /* to store later */
7126 mono_mb_emit_ldloc (mb, ccw_obj);
7127 if (klass && klass != mono_defaults.object_class) {
7128 mono_mb_emit_ptr (mb, t);
7129 mono_mb_emit_icall (mb, type_from_handle);
7130 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7132 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7133 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7134 else if (spec->native == MONO_NATIVE_IDISPATCH)
7135 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7136 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7137 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7139 g_assert_not_reached ();
7140 mono_mb_emit_stloc (mb, 3);
7141 mono_mb_emit_ldloc (mb, 3);
7143 mono_mb_emit_managed_call (mb, AddRef, NULL);
7144 mono_mb_emit_byte (mb, CEE_POP);
7146 mono_mb_patch_short_branch (mb, pos_null);
7151 g_assert_not_reached ();
7158 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7159 MonoMarshalSpec *spec,
7160 int conv_arg, MonoType **conv_arg_type,
7161 MarshalAction action)
7163 MonoMethodBuilder *mb = m->mb;
7164 static MonoMethod *get_object_for_native_variant = NULL;
7165 static MonoMethod *get_native_variant_for_object = NULL;
7167 mono_init_com_types ();
7169 if (!get_object_for_native_variant)
7170 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7171 g_assert (get_object_for_native_variant);
7173 if (!get_native_variant_for_object)
7174 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7175 g_assert (get_native_variant_for_object);
7178 case MARSHAL_ACTION_CONV_IN: {
7179 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7182 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7184 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7186 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7189 mono_mb_emit_ldarg (mb, argnum);
7191 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7192 mono_mb_emit_ldloc_addr (mb, conv_arg);
7193 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7197 case MARSHAL_ACTION_CONV_OUT: {
7198 static MonoMethod *variant_clear = NULL;
7201 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7202 g_assert (variant_clear);
7206 mono_mb_emit_ldarg (mb, argnum);
7207 mono_mb_emit_ldloc_addr (mb, conv_arg);
7208 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7209 mono_mb_emit_byte (mb, CEE_STIND_REF);
7212 mono_mb_emit_ldloc_addr (mb, conv_arg);
7213 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7217 case MARSHAL_ACTION_PUSH:
7219 mono_mb_emit_ldloc_addr (mb, conv_arg);
7221 mono_mb_emit_ldloc (mb, conv_arg);
7224 case MARSHAL_ACTION_CONV_RESULT: {
7225 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7226 mono_mb_emit_exception_marshal_directive (mb, msg);
7230 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7231 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7234 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7236 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7238 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7242 mono_mb_emit_ldarg (mb, argnum);
7244 mono_mb_emit_ldarg_addr (mb, argnum);
7245 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7246 mono_mb_emit_stloc (mb, conv_arg);
7250 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7252 mono_mb_emit_ldloc (mb, conv_arg);
7253 mono_mb_emit_ldarg (mb, argnum);
7254 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7259 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7260 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7261 mono_mb_emit_exception_marshal_directive (mb, msg);
7266 g_assert_not_reached ();
7273 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7274 MonoMarshalSpec *spec,
7275 int conv_arg, MonoType **conv_arg_type,
7276 MarshalAction action)
7278 MonoMethodBuilder *mb = m->mb;
7279 MonoClass *klass = mono_class_from_mono_type (t);
7280 gboolean need_convert, need_free;
7281 MonoMarshalNative encoding;
7283 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7286 case MARSHAL_ACTION_CONV_IN:
7287 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7288 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7290 if (klass->element_class->blittable) {
7291 mono_mb_emit_ldarg (mb, argnum);
7293 mono_mb_emit_byte (mb, CEE_LDIND_I);
7294 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7295 mono_mb_emit_stloc (mb, conv_arg);
7298 guint32 label1, label2, label3;
7299 int index_var, src_var, dest_ptr, esize;
7300 MonoMarshalConv conv;
7301 gboolean is_string = FALSE;
7303 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7305 eklass = klass->element_class;
7307 if (eklass == mono_defaults.string_class) {
7309 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7311 else if (eklass == mono_defaults.stringbuilder_class) {
7313 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7318 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7319 mono_mb_emit_ldarg (mb, argnum);
7321 mono_mb_emit_byte (mb, CEE_LDIND_I);
7322 mono_mb_emit_stloc (mb, src_var);
7325 mono_mb_emit_ldloc (mb, src_var);
7326 mono_mb_emit_stloc (mb, conv_arg);
7327 mono_mb_emit_ldloc (mb, src_var);
7328 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7332 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7333 MonoException *exc = mono_get_exception_not_implemented (msg);
7336 mono_raise_exception (exc);
7341 esize = sizeof (gpointer);
7343 esize = mono_class_native_size (eklass, NULL);
7345 /* allocate space for the native struct and store the address */
7346 mono_mb_emit_icon (mb, esize);
7347 mono_mb_emit_ldloc (mb, src_var);
7348 mono_mb_emit_byte (mb, CEE_LDLEN);
7350 if (eklass == mono_defaults.string_class) {
7351 /* Make the array bigger for the terminating null */
7352 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7353 mono_mb_emit_byte (mb, CEE_ADD);
7355 mono_mb_emit_byte (mb, CEE_MUL);
7356 mono_mb_emit_byte (mb, CEE_PREFIX1);
7357 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7358 mono_mb_emit_stloc (mb, conv_arg);
7360 mono_mb_emit_ldloc (mb, conv_arg);
7361 mono_mb_emit_stloc (mb, dest_ptr);
7363 /* Emit marshalling loop */
7364 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7365 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7366 mono_mb_emit_stloc (mb, index_var);
7367 label2 = mono_mb_get_label (mb);
7368 mono_mb_emit_ldloc (mb, index_var);
7369 mono_mb_emit_ldloc (mb, src_var);
7370 mono_mb_emit_byte (mb, CEE_LDLEN);
7371 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7373 /* Emit marshalling code */
7376 mono_mb_emit_ldloc (mb, dest_ptr);
7377 mono_mb_emit_ldloc (mb, src_var);
7378 mono_mb_emit_ldloc (mb, index_var);
7379 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7380 mono_mb_emit_icall (mb, conv_to_icall (conv));
7381 mono_mb_emit_byte (mb, CEE_STIND_I);
7383 /* set the src_ptr */
7384 mono_mb_emit_ldloc (mb, src_var);
7385 mono_mb_emit_ldloc (mb, index_var);
7386 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7387 mono_mb_emit_stloc (mb, 0);
7390 mono_mb_emit_ldloc (mb, dest_ptr);
7391 mono_mb_emit_stloc (mb, 1);
7393 /* emit valuetype conversion code */
7394 emit_struct_conv (mb, eklass, FALSE);
7397 mono_mb_emit_add_to_local (mb, index_var, 1);
7398 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7400 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7402 mono_mb_patch_branch (mb, label3);
7404 if (eklass == mono_defaults.string_class) {
7405 /* Null terminate */
7406 mono_mb_emit_ldloc (mb, dest_ptr);
7407 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7408 mono_mb_emit_byte (mb, CEE_STIND_REF);
7411 mono_mb_patch_branch (mb, label1);
7416 case MARSHAL_ACTION_CONV_OUT:
7417 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7418 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);
7419 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7422 if (need_convert || need_free) {
7423 /* FIXME: Optimize blittable case */
7425 guint32 label1, label2, label3;
7426 int index_var, src_ptr, loc, esize;
7428 eklass = klass->element_class;
7429 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7430 esize = sizeof (gpointer);
7432 esize = mono_class_native_size (eklass, NULL);
7433 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7434 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7437 mono_mb_emit_ldarg (mb, argnum);
7439 mono_mb_emit_byte (mb, CEE_LDIND_I);
7440 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7442 mono_mb_emit_ldloc (mb, conv_arg);
7443 mono_mb_emit_stloc (mb, src_ptr);
7445 /* Emit marshalling loop */
7446 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7447 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7448 mono_mb_emit_stloc (mb, index_var);
7449 label2 = mono_mb_get_label (mb);
7450 mono_mb_emit_ldloc (mb, index_var);
7451 mono_mb_emit_ldarg (mb, argnum);
7453 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7454 mono_mb_emit_byte (mb, CEE_LDLEN);
7455 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7457 /* Emit marshalling code */
7459 if (eklass == mono_defaults.stringbuilder_class) {
7460 gboolean need_free2;
7461 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7463 g_assert (conv != -1);
7466 mono_mb_emit_ldarg (mb, argnum);
7468 mono_mb_emit_byte (mb, CEE_LDIND_I);
7469 mono_mb_emit_ldloc (mb, index_var);
7470 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7473 mono_mb_emit_ldloc (mb, src_ptr);
7474 mono_mb_emit_byte (mb, CEE_LDIND_I);
7476 mono_mb_emit_icall (mb, conv_to_icall (conv));
7480 mono_mb_emit_ldloc (mb, src_ptr);
7481 mono_mb_emit_byte (mb, CEE_LDIND_I);
7483 mono_mb_emit_icall (mb, mono_marshal_free);
7486 else if (eklass == mono_defaults.string_class) {
7489 mono_mb_emit_ldloc (mb, src_ptr);
7490 mono_mb_emit_byte (mb, CEE_LDIND_I);
7492 mono_mb_emit_icall (mb, mono_marshal_free);
7497 /* set the src_ptr */
7498 mono_mb_emit_ldloc (mb, src_ptr);
7499 mono_mb_emit_stloc (mb, 0);
7502 mono_mb_emit_ldarg (mb, argnum);
7504 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7505 mono_mb_emit_ldloc (mb, index_var);
7506 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7507 mono_mb_emit_stloc (mb, 1);
7509 /* emit valuetype conversion code */
7510 emit_struct_conv (mb, eklass, TRUE);
7514 mono_mb_emit_ldloc (mb, src_ptr);
7515 mono_mb_emit_stloc (mb, loc);
7516 mono_mb_emit_ldloc (mb, loc);
7518 emit_struct_free (mb, eklass, loc);
7522 mono_mb_emit_add_to_local (mb, index_var, 1);
7523 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7525 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7527 mono_mb_patch_branch (mb, label1);
7528 mono_mb_patch_branch (mb, label3);
7532 case MARSHAL_ACTION_PUSH:
7534 mono_mb_emit_ldloc_addr (mb, conv_arg);
7536 mono_mb_emit_ldloc (mb, conv_arg);
7539 case MARSHAL_ACTION_CONV_RESULT:
7540 /* fixme: we need conversions here */
7541 mono_mb_emit_stloc (mb, 3);
7544 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7546 guint32 label1, label2, label3;
7547 int index_var, src_ptr, loc, esize, param_num, num_elem;
7548 MonoMarshalConv conv;
7549 gboolean is_string = FALSE;
7551 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7552 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7555 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7556 mono_mb_emit_exception_marshal_directive (mb, msg);
7560 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7561 mono_mb_emit_exception_marshal_directive (mb, msg);
7564 if (spec->native != MONO_NATIVE_LPARRAY) {
7565 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7566 mono_mb_emit_exception_marshal_directive (mb, msg);
7570 /* FIXME: t is from the method which is wrapped, not the delegate type */
7571 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7573 param_num = spec->data.array_data.param_num;
7574 num_elem = spec->data.array_data.num_elem;
7575 if (spec->data.array_data.elem_mult == 0)
7576 /* param_num is not specified */
7579 if (param_num == -1) {
7580 if (num_elem <= 0) {
7581 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7582 mono_mb_emit_exception_marshal_directive (mb, msg);
7587 /* FIXME: Optimize blittable case */
7589 eklass = klass->element_class;
7590 if (eklass == mono_defaults.string_class) {
7592 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7594 else if (eklass == mono_defaults.stringbuilder_class) {
7596 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7601 mono_marshal_load_type_info (eklass);
7604 esize = sizeof (gpointer);
7606 esize = mono_class_native_size (eklass, NULL);
7607 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7608 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7610 mono_mb_emit_byte (mb, CEE_LDNULL);
7611 mono_mb_emit_stloc (mb, conv_arg);
7613 /* Check param index */
7614 if (param_num != -1) {
7615 if (param_num >= m->sig->param_count) {
7616 char *msg = g_strdup ("Array size control parameter index is out of range.");
7617 mono_mb_emit_exception_marshal_directive (mb, msg);
7620 switch (m->sig->params [param_num]->type) {
7633 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7634 mono_mb_emit_exception_marshal_directive (mb, msg);
7641 mono_mb_emit_ldarg (mb, argnum);
7642 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7644 mono_mb_emit_ldarg (mb, argnum);
7645 mono_mb_emit_stloc (mb, src_ptr);
7647 /* Create managed array */
7649 * The LPArray marshalling spec says that sometimes param_num starts
7650 * from 1, sometimes it starts from 0. But MS seems to allways start
7654 if (param_num == -1)
7655 mono_mb_emit_icon (mb, num_elem);
7657 /* FIXME: Add the two together */
7658 mono_mb_emit_ldarg (mb, param_num);
7660 mono_mb_emit_icon (mb, num_elem);
7661 mono_mb_emit_byte (mb, CEE_ADD);
7665 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7666 mono_mb_emit_stloc (mb, conv_arg);
7668 if (eklass->blittable) {
7669 mono_mb_emit_ldloc (mb, conv_arg);
7670 mono_mb_emit_byte (mb, CEE_CONV_I);
7671 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7672 mono_mb_emit_byte (mb, CEE_ADD);
7673 mono_mb_emit_ldarg (mb, argnum);
7674 mono_mb_emit_ldloc (mb, conv_arg);
7675 mono_mb_emit_byte (mb, CEE_LDLEN);
7676 mono_mb_emit_icon (mb, esize);
7677 mono_mb_emit_byte (mb, CEE_MUL);
7678 mono_mb_emit_byte (mb, CEE_PREFIX1);
7679 mono_mb_emit_byte (mb, CEE_CPBLK);
7683 /* Emit marshalling loop */
7684 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7685 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7686 mono_mb_emit_stloc (mb, index_var);
7687 label2 = mono_mb_get_label (mb);
7688 mono_mb_emit_ldloc (mb, index_var);
7689 mono_mb_emit_ldloc (mb, conv_arg);
7690 mono_mb_emit_byte (mb, CEE_LDLEN);
7691 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7693 /* Emit marshalling code */
7695 g_assert (conv != -1);
7697 mono_mb_emit_ldloc (mb, conv_arg);
7698 mono_mb_emit_ldloc (mb, index_var);
7700 mono_mb_emit_ldloc (mb, src_ptr);
7701 mono_mb_emit_byte (mb, CEE_LDIND_I);
7703 mono_mb_emit_icall (mb, conv_to_icall (conv));
7704 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7707 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7708 mono_mb_emit_exception_marshal_directive (mb, msg);
7712 mono_mb_emit_add_to_local (mb, index_var, 1);
7713 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7715 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7717 mono_mb_patch_branch (mb, label1);
7718 mono_mb_patch_branch (mb, label3);
7722 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7724 guint32 label1, label2, label3;
7725 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7726 MonoMarshalConv conv;
7727 gboolean is_string = FALSE;
7730 /* Already handled in CONV_IN */
7733 /* These are already checked in CONV_IN */
7734 g_assert (!t->byref);
7735 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7736 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7738 param_num = spec->data.array_data.param_num;
7739 num_elem = spec->data.array_data.num_elem;
7741 if (spec->data.array_data.elem_mult == 0)
7742 /* param_num is not specified */
7745 if (param_num == -1) {
7746 if (num_elem <= 0) {
7747 g_assert_not_reached ();
7751 /* FIXME: Optimize blittable case */
7753 eklass = klass->element_class;
7754 if (eklass == mono_defaults.string_class) {
7756 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7758 else if (eklass == mono_defaults.stringbuilder_class) {
7760 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7765 mono_marshal_load_type_info (eklass);
7768 esize = sizeof (gpointer);
7770 esize = mono_class_native_size (eklass, NULL);
7772 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7773 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7776 mono_mb_emit_ldloc (mb, conv_arg);
7777 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7779 mono_mb_emit_ldarg (mb, argnum);
7780 mono_mb_emit_stloc (mb, dest_ptr);
7782 if (eklass->blittable) {
7784 mono_mb_emit_ldarg (mb, argnum);
7786 mono_mb_emit_ldloc (mb, conv_arg);
7787 mono_mb_emit_byte (mb, CEE_CONV_I);
7788 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7789 mono_mb_emit_byte (mb, CEE_ADD);
7791 mono_mb_emit_ldloc (mb, conv_arg);
7792 mono_mb_emit_byte (mb, CEE_LDLEN);
7793 mono_mb_emit_icon (mb, esize);
7794 mono_mb_emit_byte (mb, CEE_MUL);
7795 mono_mb_emit_byte (mb, CEE_PREFIX1);
7796 mono_mb_emit_byte (mb, CEE_CPBLK);
7800 /* Emit marshalling loop */
7801 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7802 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7803 mono_mb_emit_stloc (mb, index_var);
7804 label2 = mono_mb_get_label (mb);
7805 mono_mb_emit_ldloc (mb, index_var);
7806 mono_mb_emit_ldloc (mb, conv_arg);
7807 mono_mb_emit_byte (mb, CEE_LDLEN);
7808 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7810 /* Emit marshalling code */
7812 g_assert (conv != -1);
7815 mono_mb_emit_ldloc (mb, dest_ptr);
7818 mono_mb_emit_ldloc (mb, conv_arg);
7819 mono_mb_emit_ldloc (mb, index_var);
7821 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7823 mono_mb_emit_icall (mb, conv_to_icall (conv));
7824 mono_mb_emit_byte (mb, CEE_STIND_I);
7827 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7828 mono_mb_emit_exception_marshal_directive (mb, msg);
7832 mono_mb_emit_add_to_local (mb, index_var, 1);
7833 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7835 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7837 mono_mb_patch_branch (mb, label1);
7838 mono_mb_patch_branch (mb, label3);
7842 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7844 guint32 label1, label2, label3;
7845 int index_var, src, dest, esize;
7846 MonoMarshalConv conv = -1;
7847 gboolean is_string = FALSE;
7849 g_assert (!t->byref);
7851 eklass = klass->element_class;
7853 mono_marshal_load_type_info (eklass);
7855 if (eklass == mono_defaults.string_class) {
7857 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7860 g_assert_not_reached ();
7864 esize = sizeof (gpointer);
7866 esize = mono_class_native_size (eklass, NULL);
7868 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7869 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7871 mono_mb_emit_stloc (mb, src);
7872 mono_mb_emit_ldloc (mb, src);
7873 mono_mb_emit_stloc (mb, 3);
7875 /* Check for null */
7876 mono_mb_emit_ldloc (mb, src);
7877 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7879 /* Allocate native array */
7880 mono_mb_emit_icon (mb, esize);
7881 mono_mb_emit_ldloc (mb, src);
7882 mono_mb_emit_byte (mb, CEE_LDLEN);
7884 if (eklass == mono_defaults.string_class) {
7885 /* Make the array bigger for the terminating null */
7886 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7887 mono_mb_emit_byte (mb, CEE_ADD);
7889 mono_mb_emit_byte (mb, CEE_MUL);
7890 mono_mb_emit_icall (mb, mono_marshal_alloc);
7891 mono_mb_emit_stloc (mb, dest);
7892 mono_mb_emit_ldloc (mb, dest);
7893 mono_mb_emit_stloc (mb, 3);
7895 /* Emit marshalling loop */
7896 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7897 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7898 mono_mb_emit_stloc (mb, index_var);
7899 label2 = mono_mb_get_label (mb);
7900 mono_mb_emit_ldloc (mb, index_var);
7901 mono_mb_emit_ldloc (mb, src);
7902 mono_mb_emit_byte (mb, CEE_LDLEN);
7903 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7905 /* Emit marshalling code */
7907 g_assert (conv != -1);
7910 mono_mb_emit_ldloc (mb, dest);
7913 mono_mb_emit_ldloc (mb, src);
7914 mono_mb_emit_ldloc (mb, index_var);
7916 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7918 mono_mb_emit_icall (mb, conv_to_icall (conv));
7919 mono_mb_emit_byte (mb, CEE_STIND_I);
7922 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7923 mono_mb_emit_exception_marshal_directive (mb, msg);
7927 mono_mb_emit_add_to_local (mb, index_var, 1);
7928 mono_mb_emit_add_to_local (mb, dest, esize);
7930 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7932 mono_mb_patch_branch (mb, label3);
7933 mono_mb_patch_branch (mb, label1);
7937 g_assert_not_reached ();
7944 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7945 MonoMarshalSpec *spec,
7946 int conv_arg, MonoType **conv_arg_type,
7947 MarshalAction action)
7949 MonoMethodBuilder *mb = m->mb;
7952 case MARSHAL_ACTION_CONV_IN: {
7953 MonoType *local_type;
7954 int variant_bool = 0;
7958 local_type = &mono_defaults.int32_class->byval_arg;
7960 switch (spec->native) {
7961 case MONO_NATIVE_I1:
7962 case MONO_NATIVE_U1:
7963 local_type = &mono_defaults.byte_class->byval_arg;
7965 case MONO_NATIVE_VARIANTBOOL:
7966 local_type = &mono_defaults.int16_class->byval_arg;
7970 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7971 local_type = &mono_defaults.int32_class->byval_arg;
7975 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7976 conv_arg = mono_mb_add_local (mb, local_type);
7977 mono_mb_emit_ldarg (mb, argnum);
7978 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7980 mono_mb_emit_byte (mb, CEE_NEG);
7981 mono_mb_emit_stloc (mb, conv_arg);
7985 case MARSHAL_ACTION_CONV_OUT:
7988 mono_mb_emit_ldarg (mb, argnum);
7989 mono_mb_emit_ldloc (mb, conv_arg);
7990 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
7991 mono_mb_emit_byte (mb, CEE_NEG);
7992 mono_mb_emit_byte (mb, CEE_STIND_I1);
7995 case MARSHAL_ACTION_PUSH:
7997 mono_mb_emit_ldloc_addr (mb, conv_arg);
7999 mono_mb_emit_ldarg (mb, argnum);
8002 case MARSHAL_ACTION_CONV_RESULT:
8003 /* maybe we need to make sure that it fits within 8 bits */
8004 mono_mb_emit_stloc (mb, 3);
8008 g_assert_not_reached ();
8015 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8016 MonoMarshalSpec *spec, int conv_arg,
8017 MonoType **conv_arg_type, MarshalAction action)
8019 MonoMethodBuilder *mb = m->mb;
8022 case MARSHAL_ACTION_CONV_IN:
8023 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8024 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8025 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8029 case MARSHAL_ACTION_PUSH:
8030 mono_mb_emit_ldarg (mb, argnum);
8033 case MARSHAL_ACTION_CONV_RESULT:
8034 /* no conversions necessary */
8035 mono_mb_emit_stloc (mb, 3);
8046 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8047 MonoMarshalSpec *spec, int conv_arg,
8048 MonoType **conv_arg_type, MarshalAction action)
8050 MonoMethodBuilder *mb = m->mb;
8053 case MARSHAL_ACTION_PUSH:
8054 /* fixme: dont know how to marshal that. We cant simply
8055 * convert it to a one byte UTF8 character, because an
8056 * unicode character may need more that one byte in UTF8 */
8057 mono_mb_emit_ldarg (mb, argnum);
8060 case MARSHAL_ACTION_CONV_RESULT:
8061 /* fixme: we need conversions here */
8062 mono_mb_emit_stloc (mb, 3);
8073 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8074 MonoMarshalSpec *spec, int conv_arg,
8075 MonoType **conv_arg_type, MarshalAction action)
8077 MonoMethodBuilder *mb = m->mb;
8080 case MARSHAL_ACTION_PUSH:
8081 mono_mb_emit_ldarg (mb, argnum);
8084 case MARSHAL_ACTION_CONV_RESULT:
8085 /* no conversions necessary */
8086 mono_mb_emit_stloc (mb, 3);
8097 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8098 MonoMarshalSpec *spec, int conv_arg,
8099 MonoType **conv_arg_type, MarshalAction action)
8101 /* Ensure that we have marshalling info for this param */
8102 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8104 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8105 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8107 if (spec && spec->native == MONO_NATIVE_ASANY)
8108 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8111 case MONO_TYPE_VALUETYPE:
8112 if (t->data.klass == mono_defaults.handleref_class)
8113 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8115 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8116 case MONO_TYPE_STRING:
8117 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8118 case MONO_TYPE_CLASS:
8119 case MONO_TYPE_OBJECT:
8120 if (spec && spec->native == MONO_NATIVE_STRUCT)
8121 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8123 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8124 spec->native == MONO_NATIVE_IDISPATCH ||
8125 spec->native == MONO_NATIVE_INTERFACE))
8126 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8128 if (mono_defaults.safehandle_class != NULL &&
8129 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8130 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8132 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8133 case MONO_TYPE_ARRAY:
8134 case MONO_TYPE_SZARRAY:
8135 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8136 case MONO_TYPE_BOOLEAN:
8137 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8139 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8140 case MONO_TYPE_CHAR:
8141 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8154 case MONO_TYPE_FNPTR:
8155 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8162 * mono_marshal_emit_native_wrapper:
8163 * @image: the image to use for looking up custom marshallers
8164 * @sig: The signature of the native function
8165 * @piinfo: Marshalling information
8166 * @mspecs: Marshalling information
8167 * @func: the native function to call
8168 * @check_exceptions: Whenever to check for pending exceptions after the native call
8170 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8173 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions)
8175 EmitMarshalContext m;
8176 MonoMethodSignature *csig;
8178 int i, argnum, *tmp_locals;
8180 static MonoMethodSignature *get_last_error_sig = NULL;
8185 /* we copy the signature, so that we can set pinvoke to 0 */
8186 csig = signature_dup (mb->method->klass->image, sig);
8191 /* we allocate local for use with emit_struct_conv() */
8192 /* allocate local 0 (pointer) src_ptr */
8193 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8194 /* allocate local 1 (pointer) dst_ptr */
8195 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8196 /* allocate local 2 (boolean) delete_old */
8197 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8199 /* delete_old = FALSE */
8200 mono_mb_emit_icon (mb, 0);
8201 mono_mb_emit_stloc (mb, 2);
8203 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8204 /* allocate local 3 to store the return value */
8205 mono_mb_add_local (mb, sig->ret);
8208 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8209 /* Return type custom marshaling */
8211 * Since we can't determine the return type of the unmanaged function,
8212 * we assume it returns a pointer, and pass that pointer to
8213 * MarshalNativeToManaged.
8215 csig->ret = &mono_defaults.int_class->byval_arg;
8218 /* we first do all conversions */
8219 tmp_locals = alloca (sizeof (int) * sig->param_count);
8220 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8222 for (i = 0; i < sig->param_count; i ++) {
8223 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8226 /* push all arguments */
8229 mono_mb_emit_byte (mb, CEE_LDARG_0);
8232 for (i = 0; i < sig->param_count; i++) {
8233 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8236 /* call the native method */
8237 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8238 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8241 mono_mb_emit_native_call (mb, csig, func);
8244 /* Set LastError if needed */
8245 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8246 if (!get_last_error_sig) {
8247 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8248 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8249 get_last_error_sig->pinvoke = 1;
8252 #ifdef PLATFORM_WIN32
8254 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8255 * clobber its value.
8257 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8258 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8260 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8264 /* convert the result */
8265 if (!sig->ret->byref) {
8266 MonoMarshalSpec *spec = mspecs [0];
8267 type = sig->ret->type;
8269 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8270 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8275 case MONO_TYPE_VOID:
8277 case MONO_TYPE_VALUETYPE:
8278 klass = sig->ret->data.klass;
8279 if (klass->enumtype) {
8280 type = sig->ret->data.klass->enum_basetype->type;
8283 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8297 case MONO_TYPE_FNPTR:
8298 case MONO_TYPE_STRING:
8299 case MONO_TYPE_CLASS:
8300 case MONO_TYPE_OBJECT:
8301 case MONO_TYPE_BOOLEAN:
8302 case MONO_TYPE_ARRAY:
8303 case MONO_TYPE_SZARRAY:
8304 case MONO_TYPE_CHAR:
8306 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8308 case MONO_TYPE_TYPEDBYREF:
8310 g_warning ("return type 0x%02x unknown", sig->ret->type);
8311 g_assert_not_reached ();
8315 mono_mb_emit_stloc (mb, 3);
8319 * Need to call this after converting the result since MONO_VTADDR needs
8320 * to be adjacent to the call instruction.
8322 if (check_exceptions)
8323 emit_thread_interrupt_checkpoint (mb);
8325 /* we need to convert byref arguments back and free string arrays */
8326 for (i = 0; i < sig->param_count; i++) {
8327 MonoType *t = sig->params [i];
8328 MonoMarshalSpec *spec = mspecs [i + 1];
8330 argnum = i + sig->hasthis;
8332 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8333 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8338 case MONO_TYPE_STRING:
8339 case MONO_TYPE_VALUETYPE:
8340 case MONO_TYPE_CLASS:
8341 case MONO_TYPE_OBJECT:
8342 case MONO_TYPE_SZARRAY:
8343 case MONO_TYPE_BOOLEAN:
8344 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8349 if (!MONO_TYPE_IS_VOID(sig->ret))
8350 mono_mb_emit_ldloc (mb, 3);
8352 mono_mb_emit_byte (mb, CEE_RET);
8356 * mono_marshal_get_native_wrapper:
8357 * @method: The MonoMethod to wrap.
8358 * @check_exceptions: Whenever to check for pending exceptions
8360 * generates IL code for the pinvoke wrapper (the generated method
8361 * calls the unmanaged code in piinfo->addr)
8364 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions)
8366 MonoMethodSignature *sig, *csig;
8367 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8368 MonoMethodBuilder *mb;
8369 MonoMarshalSpec **mspecs;
8372 gboolean pinvoke = FALSE;
8375 const char *exc_class = "MissingMethodException";
8376 const char *exc_arg = NULL;
8378 g_assert (method != NULL);
8379 g_assert (mono_method_signature (method)->pinvoke);
8381 cache = method->klass->image->native_wrapper_cache;
8382 if ((res = mono_marshal_find_in_cache (cache, method)))
8385 if (MONO_CLASS_IS_IMPORT (method->klass))
8386 return cominterop_get_native_wrapper (method);
8388 sig = mono_method_signature (method);
8390 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8391 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8394 if (!piinfo->addr) {
8396 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8398 piinfo->addr = mono_lookup_internal_call (method);
8401 /* hack - redirect certain string constructors to CreateString */
8402 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8403 g_assert (!pinvoke);
8404 g_assert (method->string_ctor);
8405 g_assert (sig->hasthis);
8407 /* CreateString returns a value */
8408 csig = signature_dup (method->klass->image, sig);
8409 csig->ret = &mono_defaults.string_class->byval_arg;
8413 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8414 if (!strcmp ("CreateString", res->name) &&
8415 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8417 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8418 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8420 /* create a wrapper to preserve .ctor in stack trace */
8421 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8423 mono_mb_emit_byte (mb, CEE_LDARG_0);
8424 for (i = 1; i <= csig->param_count; i++)
8425 mono_mb_emit_ldarg (mb, i);
8426 mono_mb_emit_managed_call (mb, res, NULL);
8427 mono_mb_emit_byte (mb, CEE_RET);
8429 /* use native_wrapper_cache because internal calls are looked up there */
8430 res = mono_mb_create_and_cache (cache, method,
8431 mb, csig, csig->param_count + 1);
8439 /* exception will be thrown */
8440 piinfo->addr = NULL;
8441 g_warning ("cannot find CreateString for .ctor");
8444 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8446 mb->method->save_lmf = 1;
8448 if (!piinfo->addr) {
8449 mono_mb_emit_exception (mb, exc_class, exc_arg);
8450 csig = signature_dup (method->klass->image, sig);
8452 res = mono_mb_create_and_cache (cache, method,
8453 mb, csig, csig->param_count + 16);
8458 /* internal calls: we simply push all arguments and call the method (no conversions) */
8459 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8461 /* hack - string constructors returns a value */
8462 if (method->string_ctor) {
8463 csig = signature_dup (method->klass->image, sig);
8464 csig->ret = &mono_defaults.string_class->byval_arg;
8469 mono_mb_emit_byte (mb, CEE_LDARG_0);
8471 for (i = 0; i < sig->param_count; i++)
8472 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8474 g_assert (piinfo->addr);
8475 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8476 if (check_exceptions)
8477 emit_thread_interrupt_checkpoint (mb);
8478 mono_mb_emit_byte (mb, CEE_RET);
8480 csig = signature_dup (method->klass->image, csig);
8482 res = mono_mb_create_and_cache (cache, method,
8483 mb, csig, csig->param_count + 16);
8490 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8491 mono_method_get_marshal_info (method, mspecs);
8493 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, check_exceptions);
8495 csig = signature_dup (method->klass->image, sig);
8497 res = mono_mb_create_and_cache (cache, method,
8498 mb, csig, csig->param_count + 16);
8501 for (i = sig->param_count; i >= 0; i--)
8503 mono_metadata_free_marshal_spec (mspecs [i]);
8506 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8512 * mono_marshal_get_native_func_wrapper:
8513 * @image: The image to use for memory allocation and for looking up custom marshallers.
8514 * @sig: The signature of the function
8515 * @func: The native function to wrap
8517 * Returns a wrapper method around native functions, similar to the pinvoke
8521 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8522 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8524 MonoMethodSignature *csig;
8526 MonoMethodBuilder *mb;
8531 cache = image->native_wrapper_cache;
8532 if ((res = mono_marshal_find_in_cache (cache, func)))
8535 name = g_strdup_printf ("wrapper_native_%p", func);
8536 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8537 mb->method->save_lmf = 1;
8539 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, TRUE);
8541 csig = signature_dup (image, sig);
8543 res = mono_mb_create_and_cache (cache, func,
8544 mb, csig, csig->param_count + 16);
8547 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8552 /* FIXME: moving GC */
8554 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8556 MonoMethodSignature *sig, *csig;
8562 /* allocate local 0 (pointer) src_ptr */
8563 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8564 /* allocate local 1 (pointer) dst_ptr */
8565 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8566 /* allocate local 2 (boolean) delete_old */
8567 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8569 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8570 /* allocate local 3 to store the return value */
8571 mono_mb_add_local (mb, sig->ret);
8574 mono_mb_emit_icon (mb, 0);
8575 mono_mb_emit_stloc (mb, 2);
8577 /* fixme: howto handle this ? */
8580 /* FIXME: need a solution for the moving GC here */
8581 mono_mb_emit_ptr (mb, this);
8584 g_assert_not_reached ();
8588 /* we first do all conversions */
8589 tmp_locals = alloca (sizeof (int) * sig->param_count);
8590 for (i = 0; i < sig->param_count; i ++) {
8591 MonoType *t = sig->params [i];
8594 case MONO_TYPE_OBJECT:
8595 case MONO_TYPE_CLASS:
8596 case MONO_TYPE_VALUETYPE:
8597 case MONO_TYPE_ARRAY:
8598 case MONO_TYPE_SZARRAY:
8599 case MONO_TYPE_STRING:
8600 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8609 emit_thread_interrupt_checkpoint (mb);
8611 for (i = 0; i < sig->param_count; i++) {
8612 MonoType *t = sig->params [i];
8614 if (tmp_locals [i]) {
8616 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8618 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8621 mono_mb_emit_ldarg (mb, i);
8624 mono_mb_emit_managed_call (mb, method, NULL);
8626 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8627 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8630 if (!sig->ret->byref) {
8631 switch (sig->ret->type) {
8632 case MONO_TYPE_VOID:
8634 case MONO_TYPE_BOOLEAN:
8648 case MONO_TYPE_OBJECT:
8649 mono_mb_emit_stloc (mb, 3);
8651 case MONO_TYPE_STRING:
8652 csig->ret = &mono_defaults.int_class->byval_arg;
8653 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8655 case MONO_TYPE_VALUETYPE:
8656 case MONO_TYPE_CLASS:
8657 case MONO_TYPE_SZARRAY:
8658 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8661 g_warning ("return type 0x%02x unknown", sig->ret->type);
8662 g_assert_not_reached ();
8665 mono_mb_emit_stloc (mb, 3);
8668 /* Convert byref arguments back */
8669 for (i = 0; i < sig->param_count; i ++) {
8670 MonoType *t = sig->params [i];
8671 MonoMarshalSpec *spec = mspecs [i + 1];
8673 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8674 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8676 else if (t->byref) {
8678 case MONO_TYPE_CLASS:
8679 case MONO_TYPE_VALUETYPE:
8680 case MONO_TYPE_OBJECT:
8681 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8685 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8686 /* The [Out] information is encoded in the delegate signature */
8688 case MONO_TYPE_SZARRAY:
8689 case MONO_TYPE_CLASS:
8690 case MONO_TYPE_VALUETYPE:
8691 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8694 g_assert_not_reached ();
8699 if (m->retobj_var) {
8700 mono_mb_emit_ldloc (mb, m->retobj_var);
8701 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8702 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8705 if (!MONO_TYPE_IS_VOID(sig->ret))
8706 mono_mb_emit_ldloc (mb, 3);
8707 mono_mb_emit_byte (mb, CEE_RET);
8713 * generates IL code to call managed methods from unmanaged code
8716 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8718 static MonoClass *UnmanagedFunctionPointerAttribute;
8719 MonoMethodSignature *sig, *csig, *invoke_sig;
8720 MonoMethodBuilder *mb;
8721 MonoMethod *res, *invoke;
8722 MonoMarshalSpec **mspecs;
8723 MonoMethodPInvoke piinfo;
8726 EmitMarshalContext m;
8728 g_assert (method != NULL);
8729 g_assert (!mono_method_signature (method)->pinvoke);
8732 * FIXME: Should cache the method+delegate type pair, since the same method
8733 * could be called with different delegates, thus different marshalling
8736 cache = method->klass->image->managed_wrapper_cache;
8737 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
8740 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
8741 invoke_sig = mono_method_signature (invoke);
8743 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8744 mono_method_get_marshal_info (invoke, mspecs);
8746 sig = mono_method_signature (method);
8748 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8751 /* we copy the signature, so that we can modify it */
8753 /* Need to free this later */
8754 csig = mono_metadata_signature_dup (sig);
8756 csig = signature_dup (method->klass->image, sig);
8765 m.image = method->klass->image;
8767 #ifdef PLATFORM_WIN32
8769 * Under windows, delegates passed to native code must use the STDCALL
8770 * calling convention.
8772 csig->call_convention = MONO_CALL_STDCALL;
8775 /* Change default calling convention if needed */
8776 /* Why is this a modopt ? */
8777 if (invoke_sig->ret && invoke_sig->ret->num_mods) {
8778 for (i = 0; i < invoke_sig->ret->num_mods; ++i) {
8779 MonoClass *cmod_class = mono_class_get (delegate_klass->image, invoke_sig->ret->modifiers [i].token);
8780 g_assert (cmod_class);
8781 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8782 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8783 csig->call_convention = MONO_CALL_C;
8784 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8785 csig->call_convention = MONO_CALL_STDCALL;
8786 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8787 csig->call_convention = MONO_CALL_FASTCALL;
8788 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8789 csig->call_convention = MONO_CALL_THISCALL;
8794 /* Handle the UnmanagedFunctionPointerAttribute */
8795 if (!UnmanagedFunctionPointerAttribute)
8796 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8798 /* The attribute is only available in Net 2.0 */
8799 if (UnmanagedFunctionPointerAttribute) {
8800 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8801 MonoCustomAttrInfo *cinfo;
8804 * The pinvoke attributes are stored in a real custom attribute so we have to
8807 cinfo = mono_custom_attrs_from_class (delegate_klass);
8809 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8811 memset (&piinfo, 0, sizeof (piinfo));
8813 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8815 csig->call_convention = attr->call_conv - 1;
8818 mono_custom_attrs_free (cinfo);
8822 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
8825 res = mono_mb_create_and_cache (cache, method,
8826 mb, csig, sig->param_count + 16);
8829 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8833 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8835 mono_metadata_free_marshal_spec (mspecs [i]);
8838 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8843 static MonoReflectionType *
8844 type_from_handle (MonoType *handle)
8846 MonoDomain *domain = mono_domain_get ();
8847 MonoClass *klass = mono_class_from_mono_type (handle);
8849 MONO_ARCH_SAVE_REGS;
8851 mono_class_init (klass);
8852 return mono_type_get_object (domain, handle);
8856 * mono_marshal_get_isinst:
8857 * @klass: the type of the field
8859 * This method generates a function which can be used to check if an object is
8860 * an instance of the given type, icluding the case where the object is a proxy.
8861 * The generated function has the following signature:
8862 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8865 mono_marshal_get_isinst (MonoClass *klass)
8867 static MonoMethodSignature *isint_sig = NULL;
8870 int pos_was_ok, pos_failed, pos_end, pos_end2;
8872 MonoMethodBuilder *mb;
8874 cache = klass->image->isinst_cache;
8875 if ((res = mono_marshal_find_in_cache (cache, klass)))
8879 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8880 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8881 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8882 isint_sig->pinvoke = 0;
8885 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8886 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8889 mb->method->save_lmf = 1;
8891 /* check if the object is a proxy that needs special cast */
8892 mono_mb_emit_ldarg (mb, 0);
8893 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8894 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8896 /* The result of MONO_ISINST can be:
8897 0) the type check succeeded
8898 1) the type check did not succeed
8899 2) a CanCastTo call is needed */
8901 mono_mb_emit_byte (mb, CEE_DUP);
8902 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8904 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8905 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8907 /* get the real proxy from the transparent proxy*/
8909 mono_mb_emit_ldarg (mb, 0);
8910 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8911 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8915 mono_mb_patch_branch (mb, pos_failed);
8916 mono_mb_emit_byte (mb, CEE_LDNULL);
8917 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8921 mono_mb_patch_branch (mb, pos_was_ok);
8922 mono_mb_emit_byte (mb, CEE_POP);
8923 mono_mb_emit_ldarg (mb, 0);
8927 mono_mb_patch_branch (mb, pos_end);
8928 mono_mb_patch_branch (mb, pos_end2);
8929 mono_mb_emit_byte (mb, CEE_RET);
8931 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8938 * mono_marshal_get_castclass:
8939 * @klass: the type of the field
8941 * This method generates a function which can be used to cast an object to
8942 * an instance of the given type, icluding the case where the object is a proxy.
8943 * The generated function has the following signature:
8944 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8947 mono_marshal_get_castclass (MonoClass *klass)
8949 static MonoMethodSignature *castclass_sig = NULL;
8952 int pos_was_ok, pos_was_ok2;
8954 MonoMethodBuilder *mb;
8956 cache = klass->image->castclass_cache;
8957 if ((res = mono_marshal_find_in_cache (cache, klass)))
8960 if (!castclass_sig) {
8961 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8962 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8963 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8964 castclass_sig->pinvoke = 0;
8967 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8968 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8971 mb->method->save_lmf = 1;
8973 /* check if the object is a proxy that needs special cast */
8974 mono_mb_emit_ldarg (mb, 0);
8975 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8976 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8978 /* The result of MONO_ISINST can be:
8979 0) the cast is valid
8980 1) cast of unknown proxy type
8981 or an exception if the cast is is invalid
8984 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8986 /* get the real proxy from the transparent proxy*/
8988 mono_mb_emit_ldarg (mb, 0);
8989 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8990 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8993 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8996 mono_mb_patch_branch (mb, pos_was_ok);
8997 mono_mb_patch_branch (mb, pos_was_ok2);
8998 mono_mb_emit_ldarg (mb, 0);
9001 mono_mb_emit_byte (mb, CEE_RET);
9003 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9010 mono_marshal_get_proxy_cancast (MonoClass *klass)
9012 static MonoMethodSignature *isint_sig = NULL;
9015 int pos_failed, pos_end;
9017 MonoMethod *can_cast_to;
9018 MonoMethodDesc *desc;
9019 MonoMethodBuilder *mb;
9021 cache = klass->image->proxy_isinst_cache;
9022 if ((res = mono_marshal_find_in_cache (cache, klass)))
9026 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9027 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9028 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9029 isint_sig->pinvoke = 0;
9032 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9033 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9036 mb->method->save_lmf = 1;
9038 /* get the real proxy from the transparent proxy*/
9039 mono_mb_emit_ldarg (mb, 0);
9040 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9041 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9043 /* get the reflection type from the type handle */
9044 mono_mb_emit_ptr (mb, &klass->byval_arg);
9045 mono_mb_emit_icall (mb, type_from_handle);
9047 mono_mb_emit_ldarg (mb, 0);
9049 /* make the call to CanCastTo (type, ob) */
9050 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9051 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9052 g_assert (can_cast_to);
9053 mono_method_desc_free (desc);
9054 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9056 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9058 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9059 mono_mb_emit_ptr (mb, &klass->byval_arg);
9060 mono_mb_emit_icall (mb, type_from_handle);
9061 mono_mb_emit_ldarg (mb, 0);
9063 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9064 emit_thread_interrupt_checkpoint (mb);
9066 mono_mb_emit_ldarg (mb, 0);
9067 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9071 mono_mb_patch_branch (mb, pos_failed);
9072 mono_mb_emit_byte (mb, CEE_LDNULL);
9076 mono_mb_patch_branch (mb, pos_end);
9077 mono_mb_emit_byte (mb, CEE_RET);
9079 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9086 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9089 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9090 klass = mono_class_from_mono_type (rtype->type);
9091 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9095 * mono_marshal_get_struct_to_ptr:
9098 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9101 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9103 MonoMethodBuilder *mb;
9104 static MonoMethod *stoptr = NULL;
9107 g_assert (klass != NULL);
9109 mono_marshal_load_type_info (klass);
9111 if (klass->marshal_info->str_to_ptr)
9112 return klass->marshal_info->str_to_ptr;
9115 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9118 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9120 if (klass->blittable) {
9121 mono_mb_emit_byte (mb, CEE_LDARG_1);
9122 mono_mb_emit_byte (mb, CEE_LDARG_0);
9123 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9124 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9125 mono_mb_emit_byte (mb, CEE_PREFIX1);
9126 mono_mb_emit_byte (mb, CEE_CPBLK);
9129 /* allocate local 0 (pointer) src_ptr */
9130 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9131 /* allocate local 1 (pointer) dst_ptr */
9132 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9133 /* allocate local 2 (boolean) delete_old */
9134 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9135 mono_mb_emit_byte (mb, CEE_LDARG_2);
9136 mono_mb_emit_stloc (mb, 2);
9138 /* initialize src_ptr to point to the start of object data */
9139 mono_mb_emit_byte (mb, CEE_LDARG_0);
9140 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9141 mono_mb_emit_stloc (mb, 0);
9143 /* initialize dst_ptr */
9144 mono_mb_emit_byte (mb, CEE_LDARG_1);
9145 mono_mb_emit_stloc (mb, 1);
9147 emit_struct_conv (mb, klass, FALSE);
9150 mono_mb_emit_byte (mb, CEE_RET);
9152 res = mono_mb_create_method (mb, signature_no_pinvoke (stoptr), 0);
9155 klass->marshal_info->str_to_ptr = res;
9160 * mono_marshal_get_ptr_to_struct:
9163 * generates IL code for PtrToStructure (IntPtr src, object structure)
9166 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9168 MonoMethodBuilder *mb;
9169 static MonoMethodSignature *ptostr = NULL;
9172 g_assert (klass != NULL);
9174 mono_marshal_load_type_info (klass);
9176 if (klass->marshal_info->ptr_to_str)
9177 return klass->marshal_info->ptr_to_str;
9180 MonoMethodSignature *sig;
9182 /* Create the signature corresponding to
9183 static void PtrToStructure (IntPtr ptr, object structure);
9184 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9185 sig = mono_create_icall_signature ("void ptr object");
9186 sig = signature_dup (mono_defaults.corlib, sig);
9188 mono_memory_barrier ();
9192 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9194 if (klass->blittable) {
9195 mono_mb_emit_byte (mb, CEE_LDARG_1);
9196 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9197 mono_mb_emit_byte (mb, CEE_LDARG_0);
9198 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9199 mono_mb_emit_byte (mb, CEE_PREFIX1);
9200 mono_mb_emit_byte (mb, CEE_CPBLK);
9203 /* allocate local 0 (pointer) src_ptr */
9204 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9205 /* allocate local 1 (pointer) dst_ptr */
9206 mono_mb_add_local (mb, &klass->this_arg);
9208 /* initialize src_ptr to point to the start of object data */
9209 mono_mb_emit_byte (mb, CEE_LDARG_0);
9210 mono_mb_emit_stloc (mb, 0);
9212 /* initialize dst_ptr */
9213 mono_mb_emit_byte (mb, CEE_LDARG_1);
9214 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9215 mono_mb_emit_stloc (mb, 1);
9217 emit_struct_conv (mb, klass, TRUE);
9220 mono_mb_emit_byte (mb, CEE_RET);
9222 res = mono_mb_create_method (mb, ptostr, 0);
9225 klass->marshal_info->ptr_to_str = res;
9230 * generates IL code for the synchronized wrapper: the generated method
9231 * calls METHOD while locking 'this' or the parent type.
9234 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9236 static MonoMethod *enter_method, *exit_method;
9237 MonoMethodSignature *sig;
9238 MonoExceptionClause *clause;
9239 MonoMethodHeader *header;
9240 MonoMethodBuilder *mb;
9243 int i, pos, this_local, ret_local = 0;
9247 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9250 cache = method->klass->image->synchronized_cache;
9251 if ((res = mono_marshal_find_in_cache (cache, method)))
9254 sig = signature_dup (method->klass->image, mono_method_signature (method));
9257 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9260 if (!MONO_TYPE_IS_VOID (sig->ret))
9261 ret_local = mono_mb_add_local (mb, sig->ret);
9264 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9266 mono_loader_lock ();
9267 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
9268 mono_loader_unlock ();
9269 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9271 if (!enter_method) {
9272 MonoMethodDesc *desc;
9274 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9275 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9276 g_assert (enter_method);
9277 mono_method_desc_free (desc);
9278 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9279 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9280 g_assert (exit_method);
9281 mono_method_desc_free (desc);
9284 /* Push this or the type object */
9285 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9287 * GetTypeFromHandle isn't called as a managed method because it has
9288 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9289 * transformed into something else by the JIT.
9291 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9292 mono_mb_emit_icall (mb, type_from_handle);
9295 mono_mb_emit_ldarg (mb, 0);
9296 mono_mb_emit_stloc (mb, this_local);
9298 /* Call Monitor::Enter() */
9299 mono_mb_emit_ldloc (mb, this_local);
9300 mono_mb_emit_managed_call (mb, enter_method, NULL);
9302 clause->try_offset = mono_mb_get_label (mb);
9304 /* Call the method */
9306 mono_mb_emit_ldarg (mb, 0);
9307 for (i = 0; i < sig->param_count; i++)
9308 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9310 /* this is needed to avoid recursion */
9311 mono_mb_emit_byte (mb, CEE_PREFIX1);
9312 mono_mb_emit_op (mb, CEE_LDFTN, method);
9313 mono_mb_emit_calli (mb, mono_method_signature (method));
9315 if (!MONO_TYPE_IS_VOID (sig->ret))
9316 mono_mb_emit_stloc (mb, ret_local);
9318 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9320 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9321 clause->handler_offset = mono_mb_get_label (mb);
9323 /* Call Monitor::Exit() */
9324 mono_mb_emit_ldloc (mb, this_local);
9325 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
9326 mono_mb_emit_managed_call (mb, exit_method, NULL);
9327 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9329 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9331 mono_mb_patch_branch (mb, pos);
9332 if (!MONO_TYPE_IS_VOID (sig->ret))
9333 mono_mb_emit_ldloc (mb, ret_local);
9334 mono_mb_emit_byte (mb, CEE_RET);
9336 res = mono_mb_create_and_cache (cache, method,
9337 mb, sig, sig->param_count + 16);
9340 header = ((MonoMethodNormal *)res)->header;
9341 header->num_clauses = 1;
9342 header->clauses = clause;
9349 * the returned method calls 'method' unboxing the this argument
9352 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9354 MonoMethodSignature *sig = mono_method_signature (method);
9356 MonoMethodBuilder *mb;
9360 cache = method->klass->image->unbox_wrapper_cache;
9361 if ((res = mono_marshal_find_in_cache (cache, method)))
9364 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9366 g_assert (sig->hasthis);
9368 mono_mb_emit_ldarg (mb, 0);
9369 mono_mb_emit_icon (mb, sizeof (MonoObject));
9370 mono_mb_emit_byte (mb, CEE_ADD);
9371 for (i = 0; i < sig->param_count; ++i)
9372 mono_mb_emit_ldarg (mb, i + 1);
9373 mono_mb_emit_managed_call (mb, method, NULL);
9374 mono_mb_emit_byte (mb, CEE_RET);
9376 res = mono_mb_create_and_cache (cache, method,
9377 mb, sig, sig->param_count + 16);
9380 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
9386 mono_marshal_get_stelemref ()
9388 static MonoMethod* ret = NULL;
9389 MonoMethodSignature *sig;
9390 MonoMethodBuilder *mb;
9392 guint32 b1, b2, b3, b4;
9395 int array_slot_addr;
9400 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9403 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9405 /* void stelemref (void* array, int idx, void* value) */
9406 sig->ret = &mono_defaults.void_class->byval_arg;
9407 sig->params [0] = &mono_defaults.object_class->byval_arg;
9408 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9409 sig->params [2] = &mono_defaults.object_class->byval_arg;
9411 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9412 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9413 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9417 <ldelema (bound check)>
9421 aklass = array->vtable->klass->element_class;
9422 vklass = value->vtable->klass;
9424 if (vklass->idepth < aklass->idepth)
9427 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9431 *array_slot_addr = value;
9435 if (mono_object_isinst (value, aklass))
9438 throw new ArrayTypeMismatchException ();
9441 /* ldelema (implicit bound check) */
9442 mono_mb_emit_ldarg (mb, 0);
9443 mono_mb_emit_ldarg (mb, 1);
9444 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9445 mono_mb_emit_stloc (mb, array_slot_addr);
9447 /* if (!value) goto do_store */
9448 mono_mb_emit_ldarg (mb, 2);
9449 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9451 /* aklass = array->vtable->klass->element_class */
9452 mono_mb_emit_ldarg (mb, 0);
9453 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9454 mono_mb_emit_byte (mb, CEE_LDIND_I);
9455 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9456 mono_mb_emit_byte (mb, CEE_LDIND_I);
9457 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9458 mono_mb_emit_byte (mb, CEE_LDIND_I);
9459 mono_mb_emit_stloc (mb, aklass);
9461 /* vklass = value->vtable->klass */
9462 mono_mb_emit_ldarg (mb, 2);
9463 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9464 mono_mb_emit_byte (mb, CEE_LDIND_I);
9465 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9466 mono_mb_emit_byte (mb, CEE_LDIND_I);
9467 mono_mb_emit_stloc (mb, vklass);
9469 /* if (vklass->idepth < aklass->idepth) goto failue */
9470 mono_mb_emit_ldloc (mb, vklass);
9471 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9472 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9474 mono_mb_emit_ldloc (mb, aklass);
9475 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9476 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9478 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9480 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9481 mono_mb_emit_ldloc (mb, vklass);
9482 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9483 mono_mb_emit_byte (mb, CEE_LDIND_I);
9485 mono_mb_emit_ldloc (mb, aklass);
9486 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9487 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9488 mono_mb_emit_icon (mb, 1);
9489 mono_mb_emit_byte (mb, CEE_SUB);
9490 mono_mb_emit_icon (mb, sizeof (void*));
9491 mono_mb_emit_byte (mb, CEE_MUL);
9492 mono_mb_emit_byte (mb, CEE_ADD);
9493 mono_mb_emit_byte (mb, CEE_LDIND_I);
9495 mono_mb_emit_ldloc (mb, aklass);
9497 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9499 copy_pos = mono_mb_get_label (mb);
9501 mono_mb_patch_branch (mb, b1);
9502 mono_mb_emit_ldloc (mb, array_slot_addr);
9503 mono_mb_emit_ldarg (mb, 2);
9504 mono_mb_emit_byte (mb, CEE_STIND_REF);
9506 mono_mb_emit_byte (mb, CEE_RET);
9509 mono_mb_patch_branch (mb, b2);
9510 mono_mb_patch_branch (mb, b3);
9512 mono_mb_emit_ldarg (mb, 2);
9513 mono_mb_emit_ldloc (mb, aklass);
9514 mono_mb_emit_icall (mb, mono_object_isinst);
9516 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9517 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9518 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9520 mono_mb_emit_byte (mb, CEE_RET);
9521 ret = mono_mb_create_method (mb, sig, 4);
9532 /* LOCKING: vars accessed under the marshal lock */
9533 static ArrayElemAddr *elem_addr_cache = NULL;
9534 static int elem_addr_cache_size = 0;
9535 static int elem_addr_cache_next = 0;
9538 * mono_marshal_get_array_address:
9539 * @rank: rank of the array type
9540 * @elem_size: size in bytes of an element of an array.
9542 * Returns a MonoMethd that implements the code to get the address
9543 * of an element in a multi-dimenasional array of @rank dimensions.
9544 * The returned method takes an array as the first argument and then
9545 * @rank indexes for the @rank dimensions.
9548 mono_marshal_get_array_address (int rank, int elem_size)
9551 MonoMethodBuilder *mb;
9552 MonoMethodSignature *sig;
9553 int i, bounds, ind, realidx;
9554 int branch_pos, *branch_positions;
9558 mono_marshal_lock ();
9559 for (i = 0; i < elem_addr_cache_next; ++i) {
9560 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9561 ret = elem_addr_cache [i].method;
9565 mono_marshal_unlock ();
9569 branch_positions = g_new0 (int, rank);
9571 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9573 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9574 sig->ret = &mono_defaults.int_class->byval_arg;
9575 sig->params [0] = &mono_defaults.object_class->byval_arg;
9576 for (i = 0; i < rank; ++i) {
9577 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9580 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9582 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9583 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9584 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9586 /* bounds = array->bounds; */
9587 mono_mb_emit_ldarg (mb, 0);
9588 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9589 mono_mb_emit_byte (mb, CEE_LDIND_I);
9590 mono_mb_emit_stloc (mb, bounds);
9592 /* ind is the overall element index, realidx is the partial index in a single dimension */
9593 /* ind = idx0 - bounds [0].lower_bound */
9594 mono_mb_emit_ldarg (mb, 1);
9595 mono_mb_emit_ldloc (mb, bounds);
9596 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9597 mono_mb_emit_byte (mb, CEE_ADD);
9598 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9599 mono_mb_emit_byte (mb, CEE_SUB);
9600 mono_mb_emit_stloc (mb, ind);
9601 /* if (ind >= bounds [0].length) goto exeception; */
9602 mono_mb_emit_ldloc (mb, ind);
9603 mono_mb_emit_ldloc (mb, bounds);
9604 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9605 mono_mb_emit_byte (mb, CEE_ADD);
9606 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9607 /* note that we use unsigned comparison */
9608 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9610 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9611 * We could also decide to ignore the passed elem_size and get it
9612 * from the array object, to reduce the number of methods we generate:
9613 * the additional cost is 3 memory loads and a non-immediate mul.
9615 for (i = 1; i < rank; ++i) {
9616 /* realidx = idxi - bounds [i].lower_bound */
9617 mono_mb_emit_ldarg (mb, 1 + i);
9618 mono_mb_emit_ldloc (mb, bounds);
9619 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9620 mono_mb_emit_byte (mb, CEE_ADD);
9621 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9622 mono_mb_emit_byte (mb, CEE_SUB);
9623 mono_mb_emit_stloc (mb, realidx);
9624 /* if (realidx >= bounds [i].length) goto exeception; */
9625 mono_mb_emit_ldloc (mb, realidx);
9626 mono_mb_emit_ldloc (mb, bounds);
9627 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9628 mono_mb_emit_byte (mb, CEE_ADD);
9629 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9630 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9631 /* ind = ind * bounds [i].length + realidx */
9632 mono_mb_emit_ldloc (mb, ind);
9633 mono_mb_emit_ldloc (mb, bounds);
9634 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9635 mono_mb_emit_byte (mb, CEE_ADD);
9636 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9637 mono_mb_emit_byte (mb, CEE_MUL);
9638 mono_mb_emit_ldloc (mb, realidx);
9639 mono_mb_emit_byte (mb, CEE_ADD);
9640 mono_mb_emit_stloc (mb, ind);
9643 /* return array->vector + ind * element_size */
9644 mono_mb_emit_ldarg (mb, 0);
9645 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9646 mono_mb_emit_ldloc (mb, ind);
9647 mono_mb_emit_icon (mb, elem_size);
9648 mono_mb_emit_byte (mb, CEE_MUL);
9649 mono_mb_emit_byte (mb, CEE_ADD);
9650 mono_mb_emit_byte (mb, CEE_RET);
9652 /* patch the branches to get here and throw */
9653 for (i = 1; i < rank; ++i) {
9654 mono_mb_patch_branch (mb, branch_positions [i]);
9656 mono_mb_patch_branch (mb, branch_pos);
9657 /* throw exception */
9658 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9660 g_free (branch_positions);
9661 ret = mono_mb_create_method (mb, sig, 4);
9664 /* cache the result */
9666 mono_marshal_lock ();
9667 for (i = 0; i < elem_addr_cache_next; ++i) {
9668 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9669 /* FIXME: free ret */
9670 ret = elem_addr_cache [i].method;
9676 if (elem_addr_cache_next >= elem_addr_cache_size) {
9677 int new_size = elem_addr_cache_size + 4;
9678 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9679 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9680 g_free (elem_addr_cache);
9681 elem_addr_cache = new_array;
9682 elem_addr_cache_size = new_size;
9684 elem_addr_cache [elem_addr_cache_next].rank = rank;
9685 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9686 elem_addr_cache [elem_addr_cache_next].method = ret;
9688 mono_marshal_unlock ();
9693 mono_marshal_get_write_barrier (void)
9695 static MonoMethod* ret = NULL;
9696 MonoMethodSignature *sig;
9697 MonoMethodBuilder *mb;
9703 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
9705 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9707 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
9708 sig->ret = &mono_defaults.void_class->byval_arg;
9709 sig->params [0] = &mono_defaults.object_class->this_arg;
9710 sig->params [1] = &mono_defaults.object_class->byval_arg;
9712 /* just the store right now: add an hook for the GC to use, maybe something
9713 * that can be used for stelemref as well
9714 * We need a write barrier variant to be used with struct copies as well, though
9715 * there are also other approaches possible, like writing a wrapper specific to
9716 * the struct or to the reference pattern in the struct...
9717 * Depending on the GC, we may want variants that take the object we store to
9718 * when it is available.
9720 mono_mb_emit_ldarg (mb, 0);
9721 mono_mb_emit_ldarg (mb, 1);
9722 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
9723 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
9725 mono_mb_emit_byte (mb, CEE_RET);
9727 ret = mono_mb_create_method (mb, sig, max_stack);
9733 mono_marshal_alloc (gulong size)
9737 #ifdef PLATFORM_WIN32
9738 res = CoTaskMemAlloc (size);
9740 res = g_try_malloc ((gulong)size);
9742 mono_gc_out_of_memory ((gulong)size);
9748 mono_marshal_free (gpointer ptr)
9750 #ifdef PLATFORM_WIN32
9751 CoTaskMemFree (ptr);
9758 mono_marshal_free_array (gpointer *ptr, int size)
9765 for (i = 0; i < size; i++)
9771 mono_marshal_string_to_utf16 (MonoString *s)
9773 return s ? mono_string_chars (s) : NULL;
9777 mono_marshal_string_to_utf16_copy (MonoString *s)
9782 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9783 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9784 res [mono_string_length (s)] = 0;
9790 * mono_marshal_set_last_error:
9792 * This function is invoked to set the last error value from a P/Invoke call
9793 * which has SetLastError set.
9796 mono_marshal_set_last_error (void)
9799 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9801 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9806 mono_marshal_set_last_error_windows (int error)
9809 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9814 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9815 gpointer dest, gint32 length)
9820 MONO_ARCH_SAVE_REGS;
9822 MONO_CHECK_ARG_NULL (src);
9823 MONO_CHECK_ARG_NULL (dest);
9825 if (src->obj.vtable->klass->rank != 1)
9826 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9827 if (start_index < 0)
9828 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9830 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9831 if (start_index + length > mono_array_length (src))
9832 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9834 element_size = mono_array_element_size (src->obj.vtable->klass);
9836 /* no references should be involved */
9837 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9839 memcpy (dest, source_addr, length * element_size);
9843 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9844 MonoArray *dest, gint32 length)
9849 MONO_ARCH_SAVE_REGS;
9851 MONO_CHECK_ARG_NULL (src);
9852 MONO_CHECK_ARG_NULL (dest);
9854 if (dest->obj.vtable->klass->rank != 1)
9855 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9856 if (start_index < 0)
9857 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9859 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9860 if (start_index + length > mono_array_length (dest))
9861 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9863 element_size = mono_array_element_size (dest->obj.vtable->klass);
9865 /* no references should be involved */
9866 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9868 memcpy (dest_addr, src, length * element_size);
9871 #if NO_UNALIGNED_ACCESS
9872 #define RETURN_UNALIGNED(type, addr) \
9875 memcpy(&val, p + offset, sizeof(val)); \
9878 #define WRITE_UNALIGNED(type, addr, val) \
9879 memcpy(addr, &val, sizeof(type))
9881 #define RETURN_UNALIGNED(type, addr) \
9882 return *(type*)(p + offset);
9883 #define WRITE_UNALIGNED(type, addr, val) \
9884 (*(type *)(addr) = (val))
9888 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9892 MONO_ARCH_SAVE_REGS;
9894 RETURN_UNALIGNED(gpointer, p + offset);
9898 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9902 MONO_ARCH_SAVE_REGS;
9904 return *(unsigned char*)(p + offset);
9908 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9912 MONO_ARCH_SAVE_REGS;
9914 RETURN_UNALIGNED(gint16, p + offset);
9918 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9922 MONO_ARCH_SAVE_REGS;
9924 RETURN_UNALIGNED(gint32, p + offset);
9928 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9932 MONO_ARCH_SAVE_REGS;
9934 RETURN_UNALIGNED(gint64, p + offset);
9938 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9942 MONO_ARCH_SAVE_REGS;
9944 *(unsigned char*)(p + offset) = val;
9948 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9952 MONO_ARCH_SAVE_REGS;
9954 WRITE_UNALIGNED(gpointer, p + offset, val);
9958 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9962 MONO_ARCH_SAVE_REGS;
9964 WRITE_UNALIGNED(gint16, p + offset, val);
9968 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9972 MONO_ARCH_SAVE_REGS;
9974 WRITE_UNALIGNED(gint32, p + offset, val);
9978 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9982 MONO_ARCH_SAVE_REGS;
9984 WRITE_UNALIGNED(gint64, p + offset, val);
9988 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9990 MONO_ARCH_SAVE_REGS;
9995 return mono_string_new (mono_domain_get (), ptr);
9999 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10001 MONO_ARCH_SAVE_REGS;
10004 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10005 g_assert_not_reached ();
10008 return mono_string_new_len (mono_domain_get (), ptr, len);
10013 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10015 MonoDomain *domain = mono_domain_get ();
10019 MONO_ARCH_SAVE_REGS;
10027 return mono_string_new_utf16 (domain, ptr, len);
10031 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10033 MonoDomain *domain = mono_domain_get ();
10035 MONO_ARCH_SAVE_REGS;
10038 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10039 g_assert_not_reached ();
10042 return mono_string_new_utf16 (domain, ptr, len);
10047 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10049 MONO_ARCH_SAVE_REGS;
10051 return mono_string_from_bstr(ptr);
10055 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10057 MONO_ARCH_SAVE_REGS;
10059 return mono_string_to_bstr(ptr);
10064 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10065 int (STDCALL *AddRef)(gpointer pUnk);
10066 int (STDCALL *Release)(gpointer pUnk);
10070 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10072 MONO_ARCH_SAVE_REGS;
10074 mono_free_bstr (ptr);
10078 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10081 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10085 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10088 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10092 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10095 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10099 cominterop_get_idispatch_for_object (MonoObject* object)
10104 if (cominterop_object_is_rcw (object)) {
10105 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10106 mono_defaults.idispatch_class, TRUE);
10109 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10114 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10119 if (cominterop_object_is_rcw (object)) {
10120 MonoClass *klass = NULL;
10121 MonoRealProxy* real_proxy = NULL;
10124 klass = mono_object_class (object);
10125 if (klass != mono_defaults.transparent_proxy_class) {
10126 g_assert_not_reached ();
10130 real_proxy = ((MonoTransparentProxy*)object)->rp;
10132 g_assert_not_reached ();
10136 klass = mono_object_class (real_proxy);
10137 if (klass != mono_defaults.com_interop_proxy_class) {
10138 g_assert_not_reached ();
10142 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10143 g_assert_not_reached ();
10147 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10150 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10155 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10157 MonoObject* object = NULL;
10162 /* see if it is a CCW */
10163 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10169 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10171 return cominterop_get_idispatch_for_object (object);
10175 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10177 MonoClass* klass = NULL;
10180 g_assert (type->type);
10181 klass = mono_type_get_class (type->type);
10183 itf = cominterop_get_ccw (object, klass);
10190 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10192 return (MonoBoolean)cominterop_object_is_rcw (object);
10196 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10198 MonoComInteropProxy* proxy = NULL;
10199 gint32 ref_count = 0;
10202 g_assert (cominterop_object_is_rcw (object));
10204 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10207 ref_count = InterlockedDecrement (&proxy->ref_count);
10208 g_assert (ref_count >= 0);
10210 if (ref_count == 0)
10211 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10217 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10219 MONO_ARCH_SAVE_REGS;
10221 return cominterop_get_com_slot_for_method (m->method);
10225 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10227 MONO_ARCH_SAVE_REGS;
10229 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10233 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10239 MONO_ARCH_SAVE_REGS;
10241 MONO_CHECK_ARG_NULL (rtype);
10243 type = rtype->type;
10244 klass = mono_class_from_mono_type (type);
10245 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10247 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10249 MonoException *exc;
10251 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10252 exc = mono_get_exception_argument ("t", msg);
10254 mono_raise_exception (exc);
10258 return mono_class_native_size (klass, NULL);
10262 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10264 MonoMethod *method;
10267 MONO_ARCH_SAVE_REGS;
10269 MONO_CHECK_ARG_NULL (obj);
10270 MONO_CHECK_ARG_NULL (dst);
10272 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10276 pa [2] = &delete_old;
10278 mono_runtime_invoke (method, NULL, pa, NULL);
10282 ptr_to_structure (gpointer src, MonoObject *dst)
10284 MonoMethod *method;
10287 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10292 mono_runtime_invoke (method, NULL, pa, NULL);
10296 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10300 MONO_ARCH_SAVE_REGS;
10302 MONO_CHECK_ARG_NULL (src);
10303 MONO_CHECK_ARG_NULL (dst);
10305 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10307 if (t->type == MONO_TYPE_VALUETYPE) {
10308 MonoException *exc;
10311 tmp = g_strdup_printf ("Destination is a boxed value type.");
10312 exc = mono_get_exception_argument ("dst", tmp);
10315 mono_raise_exception (exc);
10319 ptr_to_structure (src, dst);
10323 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10325 MonoDomain *domain = mono_domain_get ();
10328 MONO_ARCH_SAVE_REGS;
10330 MONO_CHECK_ARG_NULL (src);
10331 MONO_CHECK_ARG_NULL (type);
10333 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10335 ptr_to_structure (src, res);
10341 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10343 MonoMarshalType *info;
10346 int match_index = -1;
10348 MONO_ARCH_SAVE_REGS;
10350 MONO_CHECK_ARG_NULL (type);
10351 MONO_CHECK_ARG_NULL (field_name);
10353 fname = mono_string_to_utf8 (field_name);
10354 klass = mono_class_from_mono_type (type->type);
10356 while (klass && match_index == -1) {
10357 MonoClassField* field;
10359 gpointer iter = NULL;
10360 while ((field = mono_class_get_fields (klass, &iter))) {
10361 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10363 if (!strcmp (fname, field->name)) {
10370 if (match_index == -1)
10371 klass = klass->parent;
10376 if(match_index == -1) {
10377 MonoException* exc;
10380 /* Get back original class instance */
10381 klass = mono_class_from_mono_type (type->type);
10383 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10384 exc = mono_get_exception_argument ("fieldName", tmp);
10387 mono_raise_exception ((MonoException*)exc);
10390 info = mono_marshal_load_type_info (klass);
10391 return info->fields [match_index].offset;
10395 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10397 MONO_ARCH_SAVE_REGS;
10399 return mono_string_to_utf8 (string);
10403 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10405 MONO_ARCH_SAVE_REGS;
10407 if (string == NULL)
10410 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10411 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10412 res [mono_string_length (string)] = 0;
10418 mono_struct_delete_old (MonoClass *klass, char *ptr)
10420 MonoMarshalType *info;
10423 info = mono_marshal_load_type_info (klass);
10425 for (i = 0; i < info->num_fields; i++) {
10426 MonoMarshalNative ntype;
10427 MonoMarshalConv conv;
10428 MonoType *ftype = info->fields [i].field->type;
10431 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10434 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10435 klass->unicode, &conv);
10437 cpos = ptr + info->fields [i].offset;
10440 case MONO_MARSHAL_CONV_NONE:
10441 if (MONO_TYPE_ISSTRUCT (ftype)) {
10442 mono_struct_delete_old (ftype->data.klass, cpos);
10446 case MONO_MARSHAL_CONV_STR_LPWSTR:
10447 /* We assume this field points inside a MonoString */
10449 case MONO_MARSHAL_CONV_STR_LPTSTR:
10450 #ifdef PLATFORM_WIN32
10451 /* We assume this field points inside a MonoString
10455 case MONO_MARSHAL_CONV_STR_LPSTR:
10456 case MONO_MARSHAL_CONV_STR_BSTR:
10457 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10458 case MONO_MARSHAL_CONV_STR_TBSTR:
10459 mono_marshal_free (*(gpointer *)cpos);
10469 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10473 MONO_ARCH_SAVE_REGS;
10475 MONO_CHECK_ARG_NULL (src);
10476 MONO_CHECK_ARG_NULL (type);
10478 klass = mono_class_from_mono_type (type->type);
10480 mono_struct_delete_old (klass, (char *)src);
10484 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10488 MONO_ARCH_SAVE_REGS;
10490 if ((gulong)size == 0)
10491 /* This returns a valid pointer for size 0 on MS.NET */
10494 #ifdef PLATFORM_WIN32
10495 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10497 res = g_try_malloc ((gulong)size);
10500 mono_gc_out_of_memory ((gulong)size);
10506 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10511 mono_gc_out_of_memory ((gulong)size);
10515 #ifdef PLATFORM_WIN32
10516 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10518 res = g_try_realloc (ptr, (gulong)size);
10521 mono_gc_out_of_memory ((gulong)size);
10527 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10529 MONO_ARCH_SAVE_REGS;
10531 #ifdef PLATFORM_WIN32
10539 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10541 MONO_ARCH_SAVE_REGS;
10543 #ifdef PLATFORM_WIN32
10544 return CoTaskMemAlloc (size);
10546 return g_try_malloc ((gulong)size);
10551 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10553 MONO_ARCH_SAVE_REGS;
10555 #ifdef PLATFORM_WIN32
10556 CoTaskMemFree (ptr);
10563 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10565 MONO_ARCH_SAVE_REGS;
10567 #ifdef PLATFORM_WIN32
10568 return CoTaskMemRealloc (ptr, size);
10570 return g_try_realloc (ptr, (gulong)size);
10575 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10577 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10581 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10583 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10586 /* Only used for COM RCWs */
10588 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10591 MonoDomain *domain;
10594 MONO_ARCH_SAVE_REGS;
10596 domain = mono_object_domain (type);
10597 klass = mono_class_from_mono_type (type->type);
10599 /* call mono_object_new_alloc_specific instead of mono_object_new
10600 * because we want to actually create object. mono_object_new checks
10601 * to see if type is import and creates transparent proxy. this method
10602 * is called by the corresponding real proxy to create the real RCW.
10603 * Constructor does not need to be called. Will be called later.
10605 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10610 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10612 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10617 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10620 if (obj->itf_hash) {
10621 guint32 gchandle = 0;
10622 mono_cominterop_lock ();
10623 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10625 mono_gchandle_free (gchandle);
10626 g_hash_table_remove (rcw_hash, obj->iunknown);
10629 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10630 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10631 obj->itf_hash = obj->iunknown = NULL;
10632 mono_cominterop_unlock ();
10637 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
10639 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
10643 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
10645 guint32 gchandle = 0;
10647 mono_cominterop_lock ();
10648 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
10649 mono_cominterop_unlock ();
10652 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
10654 mono_cominterop_lock ();
10655 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
10656 mono_cominterop_unlock ();
10659 MonoComInteropProxy*
10660 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
10662 MonoComInteropProxy* proxy = NULL;
10663 guint32 gchandle = 0;
10665 mono_cominterop_lock ();
10667 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
10668 mono_cominterop_unlock ();
10670 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
10671 /* proxy is null means we need to free up old RCW */
10673 mono_gchandle_free (gchandle);
10674 g_hash_table_remove (rcw_hash, pUnk);
10681 * mono_marshal_is_loading_type_info:
10683 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10687 mono_marshal_is_loading_type_info (MonoClass *klass)
10689 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10691 return g_slist_find (loads_list, klass) != NULL;
10695 * mono_marshal_load_type_info:
10697 * Initialize klass->marshal_info using information from metadata. This function can
10698 * recursively call itself, and the caller is responsible to avoid that by calling
10699 * mono_marshal_is_loading_type_info () beforehand.
10701 * LOCKING: Acquires the loader lock.
10704 mono_marshal_load_type_info (MonoClass* klass)
10707 guint32 native_size = 0, min_align = 1;
10708 MonoMarshalType *info;
10709 MonoClassField* field;
10712 GSList *loads_list;
10714 g_assert (klass != NULL);
10716 if (klass->marshal_info)
10717 return klass->marshal_info;
10719 if (!klass->inited)
10720 mono_class_init (klass);
10722 mono_loader_lock ();
10724 if (klass->marshal_info) {
10725 mono_loader_unlock ();
10726 return klass->marshal_info;
10730 * This function can recursively call itself, so we keep the list of classes which are
10731 * under initialization in a TLS list.
10733 g_assert (!mono_marshal_is_loading_type_info (klass));
10734 loads_list = TlsGetValue (load_type_info_tls_id);
10735 loads_list = g_slist_prepend (loads_list, klass);
10736 TlsSetValue (load_type_info_tls_id, loads_list);
10739 while ((field = mono_class_get_fields (klass, &iter))) {
10740 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10742 if (mono_field_is_deleted (field))
10747 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10749 /* The mempool is protected by the loader lock */
10750 info = mono_mempool_alloc0 (klass->image->mempool, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
10751 info->num_fields = count;
10753 /* Try to find a size for this type in metadata */
10754 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10756 if (klass->parent) {
10757 int parent_size = mono_class_native_size (klass->parent, NULL);
10759 /* Add parent size to real size */
10760 native_size += parent_size;
10761 info->native_size = parent_size;
10766 while ((field = mono_class_get_fields (klass, &iter))) {
10770 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10773 if (mono_field_is_deleted (field))
10775 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10776 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10777 NULL, NULL, &info->fields [j].mspec);
10779 info->fields [j].field = field;
10781 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10782 (strcmp (field->name, "$PRIVATE$") == 0)) {
10783 /* This field is a hack inserted by MCS to empty structures */
10788 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10789 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10790 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10791 &align, TRUE, klass->unicode);
10792 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10793 min_align = MAX (align, min_align);
10794 info->fields [j].offset = info->native_size;
10795 info->fields [j].offset += align - 1;
10796 info->fields [j].offset &= ~(align - 1);
10797 info->native_size = info->fields [j].offset + size;
10799 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10800 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10801 &align, TRUE, klass->unicode);
10802 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10803 min_align = MAX (align, min_align);
10804 info->fields [j].offset = field->offset - sizeof (MonoObject);
10805 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10811 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10812 info->native_size = MAX (native_size, info->native_size);
10815 if (info->native_size & (min_align - 1)) {
10816 info->native_size += min_align - 1;
10817 info->native_size &= ~(min_align - 1);
10820 /* Update the class's blittable info, if the layouts don't match */
10821 if (info->native_size != mono_class_value_size (klass, NULL))
10822 klass->blittable = FALSE;
10824 /* If this is an array type, ensure that we have element info */
10825 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10826 mono_marshal_load_type_info (klass->element_class);
10829 loads_list = TlsGetValue (load_type_info_tls_id);
10830 loads_list = g_slist_remove (loads_list, klass);
10831 TlsSetValue (load_type_info_tls_id, loads_list);
10833 klass->marshal_info = info;
10835 mono_loader_unlock ();
10837 return klass->marshal_info;
10841 * mono_class_native_size:
10844 * Returns: the native size of an object instance (when marshaled
10845 * to unmanaged code)
10848 mono_class_native_size (MonoClass *klass, guint32 *align)
10850 if (!klass->marshal_info) {
10851 if (mono_marshal_is_loading_type_info (klass)) {
10856 mono_marshal_load_type_info (klass);
10861 *align = klass->min_align;
10863 return klass->marshal_info->native_size;
10867 * mono_type_native_stack_size:
10868 * @t: the type to return the size it uses on the stack
10870 * Returns: the number of bytes required to hold an instance of this
10871 * type on the native stack
10874 mono_type_native_stack_size (MonoType *t, guint32 *align)
10878 g_assert (t != NULL);
10889 case MONO_TYPE_BOOLEAN:
10890 case MONO_TYPE_CHAR:
10899 case MONO_TYPE_STRING:
10900 case MONO_TYPE_OBJECT:
10901 case MONO_TYPE_CLASS:
10902 case MONO_TYPE_SZARRAY:
10903 case MONO_TYPE_PTR:
10904 case MONO_TYPE_FNPTR:
10905 case MONO_TYPE_ARRAY:
10906 case MONO_TYPE_TYPEDBYREF:
10917 case MONO_TYPE_VALUETYPE: {
10920 if (t->data.klass->enumtype)
10921 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
10923 size = mono_class_native_size (t->data.klass, align);
10924 *align = *align + 3;
10934 g_error ("type 0x%02x unknown", t->type);
10939 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10940 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10941 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10942 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10945 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10946 gboolean as_field, gboolean unicode)
10948 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10951 switch (native_type) {
10952 case MONO_NATIVE_BOOLEAN:
10955 case MONO_NATIVE_I1:
10956 case MONO_NATIVE_U1:
10959 case MONO_NATIVE_I2:
10960 case MONO_NATIVE_U2:
10961 case MONO_NATIVE_VARIANTBOOL:
10964 case MONO_NATIVE_I4:
10965 case MONO_NATIVE_U4:
10966 case MONO_NATIVE_ERROR:
10969 case MONO_NATIVE_I8:
10970 case MONO_NATIVE_U8:
10971 *align = ALIGNMENT(guint64);
10973 case MONO_NATIVE_R4:
10976 case MONO_NATIVE_R8:
10977 *align = ALIGNMENT(double);
10979 case MONO_NATIVE_INT:
10980 case MONO_NATIVE_UINT:
10981 case MONO_NATIVE_LPSTR:
10982 case MONO_NATIVE_LPWSTR:
10983 case MONO_NATIVE_LPTSTR:
10984 case MONO_NATIVE_BSTR:
10985 case MONO_NATIVE_ANSIBSTR:
10986 case MONO_NATIVE_TBSTR:
10987 case MONO_NATIVE_LPARRAY:
10988 case MONO_NATIVE_SAFEARRAY:
10989 case MONO_NATIVE_IUNKNOWN:
10990 case MONO_NATIVE_IDISPATCH:
10991 case MONO_NATIVE_INTERFACE:
10992 case MONO_NATIVE_ASANY:
10993 case MONO_NATIVE_FUNC:
10994 case MONO_NATIVE_LPSTRUCT:
10995 *align = ALIGNMENT(gpointer);
10996 return sizeof (gpointer);
10997 case MONO_NATIVE_STRUCT:
10998 klass = mono_class_from_mono_type (type);
10999 if (klass == mono_defaults.object_class &&
11000 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11004 return mono_class_native_size (klass, align);
11005 case MONO_NATIVE_BYVALTSTR: {
11006 int esize = unicode ? 2: 1;
11009 return mspec->data.array_data.num_elem * esize;
11011 case MONO_NATIVE_BYVALARRAY: {
11012 // FIXME: Have to consider ArraySubType
11014 klass = mono_class_from_mono_type (type);
11015 if (klass->element_class == mono_defaults.char_class) {
11016 esize = unicode ? 2 : 1;
11019 esize = mono_class_native_size (klass->element_class, align);
11022 return mspec->data.array_data.num_elem * esize;
11024 case MONO_NATIVE_CUSTOM:
11025 *align = sizeof (gpointer);
11026 return sizeof (gpointer);
11028 case MONO_NATIVE_CURRENCY:
11029 case MONO_NATIVE_VBBYREFSTR:
11031 g_error ("native type %02x not implemented", native_type);
11034 g_assert_not_reached ();
11039 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11047 t = &o->vtable->klass->byval_arg;
11051 case MONO_TYPE_PTR:
11054 case MONO_TYPE_BOOLEAN:
11057 case MONO_TYPE_CHAR:
11062 return mono_object_unbox (o);
11064 case MONO_TYPE_STRING:
11065 switch (string_encoding) {
11066 case MONO_NATIVE_LPWSTR:
11067 return mono_string_to_utf16 ((MonoString*)o);
11069 case MONO_NATIVE_LPSTR:
11070 return mono_string_to_lpstr ((MonoString*)o);
11073 g_warning ("marshaling conversion %d not implemented", string_encoding);
11074 g_assert_not_reached ();
11077 case MONO_TYPE_CLASS:
11078 case MONO_TYPE_VALUETYPE: {
11079 MonoMethod *method;
11082 MonoBoolean delete_old = FALSE;
11084 klass = t->data.klass;
11086 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11089 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11090 klass->blittable || klass->enumtype))
11091 return mono_object_unbox (o);
11093 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11095 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11096 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11100 pa [2] = &delete_old;
11102 mono_runtime_invoke (method, NULL, pa, NULL);
11109 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11115 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11123 t = &o->vtable->klass->byval_arg;
11125 case MONO_TYPE_STRING:
11126 switch (string_encoding) {
11127 case MONO_NATIVE_LPWSTR:
11128 case MONO_NATIVE_LPSTR:
11129 mono_marshal_free (ptr);
11132 g_warning ("marshaling conversion %d not implemented", string_encoding);
11133 g_assert_not_reached ();
11136 case MONO_TYPE_CLASS:
11137 case MONO_TYPE_VALUETYPE: {
11138 klass = t->data.klass;
11140 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11141 klass->blittable || klass->enumtype))
11144 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11145 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11151 mono_runtime_invoke (method, NULL, pa, NULL);
11154 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11155 mono_struct_delete_old (klass, ptr);
11158 mono_marshal_free (ptr);
11167 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11169 MonoMethodSignature *sig, *csig;
11170 MonoMethodBuilder *mb;
11174 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11175 mb->method->slot = -1;
11177 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11178 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11180 sig = mono_method_signature (method);
11181 csig = signature_dup (method->klass->image, sig);
11182 csig->generic_param_count = 0;
11184 mono_mb_emit_ldarg (mb, 0);
11185 for (i = 0; i < csig->param_count; i++)
11186 mono_mb_emit_ldarg (mb, i + 1);
11187 mono_mb_emit_managed_call (mb, method, NULL);
11188 mono_mb_emit_byte (mb, CEE_RET);
11190 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11192 /* We can corlib internal methods */
11193 res->skip_visibility = TRUE;
11201 * The mono_win32_compat_* functions are implementations of inline
11202 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11203 * although not exported by kernel32.
11205 * We map the appropiate kernel32 entries to these functions using
11206 * dllmaps declared in the global etc/mono/config.
11210 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11212 if (!dest || !source)
11215 memcpy (dest, source, length);
11219 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11221 memset (dest, fill, length);
11225 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11227 if (!dest || !source)
11230 memmove (dest, source, length);
11234 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11236 memset (dest, 0, length);
11239 /* Put COM Interop related stuff here */
11242 * cominterop_get_ccw_object:
11243 * @ccw_entry: a pointer to the CCWEntry
11244 * @verify: verify ccw_entry is in fact a ccw
11246 * Returns: the corresponding object for the CCW
11249 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11251 MonoCCW *ccw = NULL;
11253 /* no CCW's exist yet */
11254 if (!ccw_interface_hash)
11258 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11261 ccw = ccw_entry->ccw;
11265 return mono_gchandle_get_target (ccw->gc_handle);
11271 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11273 MonoMethodSignature *sig, *csig;
11274 sig = mono_method_signature (method);
11275 /* we copy the signature, so that we can modify it */
11276 /* FIXME: which to use? */
11277 csig = signature_dup (method->klass->image, sig);
11278 /* csig = mono_metadata_signature_dup (sig); */
11280 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11281 #ifdef PLATFORM_WIN32
11282 csig->call_convention = MONO_CALL_STDCALL;
11284 csig->call_convention = MONO_CALL_C;
11289 m->image = method->klass->image;
11297 * cominterop_get_ccw:
11298 * @object: a pointer to the object
11299 * @itf: interface type needed
11301 * Returns: a value indicating if the object is a
11302 * Runtime Callable Wrapper (RCW) for a COM object
11305 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11308 MonoCCW *ccw = NULL;
11309 MonoCCWInterface* ccw_entry = NULL;
11310 gpointer *vtable = NULL;
11311 static gpointer iunknown[3] = {NULL, NULL, NULL};
11312 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11313 MonoClass* iface = NULL;
11314 MonoClass* klass = NULL;
11315 EmitMarshalContext m;
11316 int start_slot = 3;
11317 int method_count = 0;
11318 GList *ccw_list, *ccw_list_item;
11319 MonoCustomAttrInfo *cinfo = NULL;
11324 klass = mono_object_get_class (object);
11327 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11328 if (!ccw_interface_hash)
11329 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11331 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11333 ccw_list_item = ccw_list;
11334 while (ccw_list_item) {
11335 MonoCCW* ccw_iter = ccw_list_item->data;
11336 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11340 ccw_list_item = g_list_next(ccw_list_item);
11343 if (!iunknown [0]) {
11344 iunknown [0] = cominterop_ccw_queryinterface;
11345 iunknown [1] = cominterop_ccw_addref;
11346 iunknown [2] = cominterop_ccw_release;
11349 if (!idispatch [0]) {
11350 idispatch [0] = cominterop_ccw_get_type_info_count;
11351 idispatch [1] = cominterop_ccw_get_type_info;
11352 idispatch [2] = cominterop_ccw_get_ids_of_names;
11353 idispatch [3] = cominterop_ccw_invoke;
11357 ccw = g_new0 (MonoCCW, 1);
11358 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11359 ccw->ref_count = 0;
11360 /* just alloc a weak handle until we are addref'd*/
11361 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11364 ccw_list = g_list_alloc ();
11365 ccw_list->data = ccw;
11368 ccw_list = g_list_append (ccw_list, ccw);
11369 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11370 /* register for finalization to clean up ccw */
11371 mono_object_register_finalizer (object);
11374 cinfo = mono_custom_attrs_from_class (itf);
11376 static MonoClass* coclass_attribute = NULL;
11377 if (!coclass_attribute)
11378 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11379 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11380 g_assert(itf->interface_count && itf->interfaces[0]);
11381 itf = itf->interfaces[0];
11383 if (!cinfo->cached)
11384 mono_custom_attrs_free (cinfo);
11388 if (iface == mono_defaults.iunknown_class) {
11391 else if (iface == mono_defaults.idispatch_class) {
11395 method_count += iface->method.count;
11396 start_slot = cominterop_get_com_slot_begin (iface);
11400 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11403 int vtable_index = method_count-1+start_slot;
11404 mono_loader_lock ();
11405 vtable = mono_mempool_alloc0 (klass->image->mempool, sizeof (gpointer)*(method_count+start_slot));
11406 mono_loader_unlock ();
11407 memcpy (vtable, iunknown, sizeof (iunknown));
11408 if (start_slot == 7)
11409 memcpy (vtable+3, idispatch, sizeof (idispatch));
11412 for (i = iface->method.count-1; i >= 0;i--) {
11413 int param_index = 0;
11414 MonoMethodBuilder *mb;
11415 MonoMarshalSpec ** mspecs;
11416 MonoMethod *wrapper_method, *adjust_method;
11417 MonoMethod *method = iface->methods [i];
11418 MonoMethodSignature* sig_adjusted;
11419 MonoMethodSignature* sig = mono_method_signature (method);
11420 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11423 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11424 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11425 sig_adjusted = mono_method_signature (adjust_method);
11427 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11428 mono_method_get_marshal_info (method, mspecs);
11431 /* move managed args up one */
11432 for (param_index = sig->param_count; param_index >= 1; param_index--)
11433 mspecs [param_index+1] = mspecs [param_index];
11435 /* first arg is IntPtr for interface */
11438 /* move return spec to last param */
11439 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11440 mspecs [sig_adjusted->param_count] = mspecs [0];
11444 cominterop_setup_marshal_context (&m, adjust_method);
11446 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11447 mono_loader_lock ();
11448 mono_marshal_lock ();
11449 wrapper_method = mono_mb_create_method (mb, sig_adjusted, sig_adjusted->param_count + 16);
11450 mono_marshal_unlock ();
11451 mono_loader_unlock ();
11453 /* skip visiblity since we call internal methods */
11454 wrapper_method->skip_visibility = TRUE;
11456 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11459 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11460 if (mspecs [param_index])
11461 mono_metadata_free_marshal_spec (mspecs [param_index]);
11465 ccw_entry = g_new0 (MonoCCWInterface, 1);
11466 ccw_entry->ccw = ccw;
11467 ccw_entry->vtable = vtable;
11468 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11469 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11476 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11484 * mono_marshal_free_ccw:
11485 * @object: the mono object
11487 * Returns: whether the object had a CCW
11490 mono_marshal_free_ccw (MonoObject* object)
11492 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11493 /* no ccw's were created */
11494 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11497 /* need to cache orig list address to remove from hash_table if empty */
11498 mono_cominterop_lock ();
11499 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11500 mono_cominterop_unlock ();
11505 ccw_list_item = ccw_list;
11506 while (ccw_list_item) {
11507 MonoCCW* ccw_iter = ccw_list_item->data;
11508 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11510 /* Looks like the GC NULLs the weakref handle target before running the
11511 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11512 if (!handle_target || handle_target == object) {
11513 /* remove all interfaces */
11514 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11515 g_hash_table_destroy (ccw_iter->vtable_hash);
11517 /* get next before we delete */
11518 ccw_list_item = g_list_next(ccw_list_item);
11520 /* remove ccw from list */
11521 ccw_list = g_list_remove (ccw_list, ccw_iter);
11525 ccw_list_item = g_list_next(ccw_list_item);
11528 /* if list is empty remove original address from hash */
11529 if (g_list_length (ccw_list) == 0)
11530 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11537 * cominterop_get_native_wrapper_adjusted:
11538 * @method: managed COM Interop method
11540 * Returns: the generated method to call with signature matching
11541 * the unmanaged COM Method signature
11543 static MonoMethod *
11544 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11546 static MonoMethod *get_hr_for_exception = NULL;
11547 MonoMethod *res = NULL;
11548 MonoMethodBuilder *mb;
11549 MonoMarshalSpec **mspecs;
11550 MonoMethodSignature *sig, *sig_native;
11551 MonoExceptionClause *main_clause = NULL;
11552 MonoMethodHeader *header;
11556 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11558 if (!get_hr_for_exception)
11559 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11561 sig = mono_method_signature (method);
11563 /* create unmanaged wrapper */
11564 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11566 sig_native = cominterop_method_signature (method);
11568 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11570 mono_method_get_marshal_info (method, mspecs);
11572 /* move managed args up one */
11573 for (i = sig->param_count; i >= 1; i--)
11574 mspecs [i+1] = mspecs [i];
11576 /* first arg is IntPtr for interface */
11579 /* move return spec to last param */
11580 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11581 mspecs [sig_native->param_count] = mspecs [0];
11585 if (!preserve_sig) {
11586 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11589 main_clause = g_new0 (MonoExceptionClause, 1);
11590 main_clause->try_offset = mono_mb_get_label (mb);
11593 /* load last param to store result if not preserve_sig and not void */
11594 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11595 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11597 /* the CCW -> object conversion */
11598 mono_mb_emit_ldarg (mb, 0);
11599 mono_mb_emit_icon (mb, FALSE);
11600 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11602 for (i = 0; i < sig->param_count; i++)
11603 mono_mb_emit_ldarg (mb, i+1);
11605 mono_mb_emit_managed_call (mb, method, NULL);
11607 if (!preserve_sig) {
11608 /* store result if not preserve_sig and we have one */
11609 if (!MONO_TYPE_IS_VOID (sig->ret))
11610 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11612 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11614 /* Main exception catch */
11615 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11616 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
11617 main_clause->data.catch_class = mono_defaults.object_class;
11620 main_clause->handler_offset = mono_mb_get_label (mb);
11621 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11622 mono_mb_emit_stloc (mb, hr);
11623 mono_mb_emit_branch (mb, CEE_LEAVE);
11624 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
11627 mono_mb_patch_branch (mb, pos_leave);
11629 mono_mb_emit_ldloc (mb, hr);
11632 mono_mb_emit_byte (mb, CEE_RET);
11634 mono_loader_lock ();
11635 mono_marshal_lock ();
11636 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
11637 mono_marshal_unlock ();
11638 mono_loader_unlock ();
11642 for (i = sig_native->param_count; i >= 0; i--)
11644 mono_metadata_free_marshal_spec (mspecs [i]);
11647 if (!preserve_sig) {
11648 header = ((MonoMethodNormal *)res)->header;
11649 header->num_clauses = 1;
11650 header->clauses = main_clause;
11657 * cominterop_mono_string_to_guid:
11659 * Converts the standard string representation of a GUID
11660 * to a 16 byte Microsoft GUID.
11663 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
11664 gunichar2 * chars = mono_string_chars (string);
11666 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
11668 for (i = 0; i < sizeof(indexes); i++)
11669 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
11673 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
11675 guint8 klass_guid [16];
11676 if (cominterop_class_guid (klass, klass_guid))
11677 return !memcmp (guid, klass_guid, sizeof (klass_guid));
11682 cominterop_ccw_addref (MonoCCWInterface* ccwe)
11684 gint32 ref_count = 0;
11685 MonoCCW* ccw = ccwe->ccw;
11687 g_assert (ccw->gc_handle);
11688 g_assert (ccw->ref_count >= 0);
11689 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
11690 if (ref_count == 1) {
11691 guint32 oldhandle = ccw->gc_handle;
11692 g_assert (oldhandle);
11693 /* since we now have a ref count, alloc a strong handle*/
11694 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
11695 mono_gchandle_free (oldhandle);
11701 cominterop_ccw_release (MonoCCWInterface* ccwe)
11703 gint32 ref_count = 0;
11704 MonoCCW* ccw = ccwe->ccw;
11706 g_assert (ccw->ref_count > 0);
11707 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
11708 if (ref_count == 0) {
11709 /* allow gc of object */
11710 guint32 oldhandle = ccw->gc_handle;
11711 g_assert (oldhandle);
11712 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
11713 mono_gchandle_free (oldhandle);
11718 #define MONO_S_OK 0x00000000L
11719 #define MONO_E_NOINTERFACE 0x80004002L
11720 #define MONO_E_NOTIMPL 0x80004001L
11723 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
11726 MonoClass *itf = NULL;
11728 MonoCCW* ccw = ccwe->ccw;
11729 MonoClass* klass = NULL;
11730 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
11733 klass = mono_object_class (object);
11738 /* handle IUnknown special */
11739 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
11740 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
11741 /* remember to addref on QI */
11742 cominterop_ccw_addref (*ppv);
11746 /* handle IDispatch special */
11747 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
11748 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
11749 /* remember to addref on QI */
11750 cominterop_ccw_addref (*ppv);
11754 ifaces = mono_class_get_implemented_interfaces (klass);
11756 for (i = 0; i < ifaces->len; ++i) {
11757 MonoClass *ic = NULL;
11758 ic = g_ptr_array_index (ifaces, i);
11759 if (cominterop_class_guid_equal (riid, ic)) {
11764 g_ptr_array_free (ifaces, TRUE);
11767 *ppv = cominterop_get_ccw (object, itf);
11768 /* remember to addref on QI */
11769 cominterop_ccw_addref (*ppv);
11773 return MONO_E_NOINTERFACE;
11777 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
11779 return MONO_E_NOTIMPL;
11783 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
11785 return MONO_E_NOTIMPL;
11789 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
11790 gunichar2** rgszNames, guint32 cNames,
11791 guint32 lcid, gint32 *rgDispId)
11793 return MONO_E_NOTIMPL;
11797 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
11798 gpointer riid, guint32 lcid,
11799 guint16 wFlags, gpointer pDispParams,
11800 gpointer pVarResult, gpointer pExcepInfo,
11803 return MONO_E_NOTIMPL;
11807 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11812 for (i = 0; i < len; ++i)
11816 g_assert (i < len);
11819 while (byte && !(byte & 1))
11821 g_assert (byte == 1);
11824 *bitmask = buf [i];