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
15 #include "metadata/marshal.h"
16 #include "metadata/method-builder.h"
17 #include "metadata/tabledefs.h"
18 #include "metadata/exception.h"
19 #include "metadata/appdomain.h"
20 #include "mono/metadata/debug-helpers.h"
21 #include "mono/metadata/threadpool.h"
22 #include "mono/metadata/threads.h"
23 #include "mono/metadata/monitor.h"
24 #include "mono/metadata/metadata-internals.h"
25 #include "mono/metadata/domain-internals.h"
26 #include "mono/metadata/gc-internal.h"
27 #include "mono/metadata/threads-types.h"
28 #include "mono/metadata/string-icalls.h"
29 #include "mono/metadata/attrdefs.h"
30 #include "mono/metadata/gc-internal.h"
31 #include "mono/utils/mono-counters.h"
35 /* #define DEBUG_RUNTIME_CODE */
37 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
41 MONO_MARSHAL_NONE, /* No marshalling needed */
42 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
43 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
44 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
45 } MonoXDomainMarshalType;
52 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
55 #include "mono/cil/opcode.def"
60 struct _MonoRemotingMethods {
62 MonoMethod *invoke_with_check;
63 MonoMethod *xdomain_invoke;
64 MonoMethod *xdomain_dispatch;
67 typedef struct _MonoRemotingMethods MonoRemotingMethods;
70 * This mutex protects the various marshalling related caches in MonoImage
71 * and a few other data structures static to this file.
72 * Note that when this lock is held it is not possible to take other runtime
73 * locks like the loader lock.
75 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
76 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
77 static CRITICAL_SECTION marshal_mutex;
79 /* This mutex protects the various cominterop related caches in MonoImage */
80 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
81 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
82 static CRITICAL_SECTION cominterop_mutex;
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);
112 static MonoStringBuilder *
113 mono_string_utf8_to_builder2 (char *text);
116 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
119 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
122 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
124 static MonoAsyncResult *
125 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
128 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_marshal_xdomain_copy_value (MonoObject *val);
134 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
137 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
140 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
143 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
145 static MonoReflectionType *
146 type_from_handle (MonoType *handle);
149 mono_marshal_set_last_error_windows (int error);
152 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions);
154 static void init_safe_handle (void);
156 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
157 static MonoMethod *sh_dangerous_add_ref;
158 static MonoMethod *sh_dangerous_release;
164 sh_dangerous_add_ref = mono_class_get_method_from_name (
165 mono_defaults.safehandle_class, "DangerousAddRef", 1);
166 sh_dangerous_release = mono_class_get_method_from_name (
167 mono_defaults.safehandle_class, "DangerousRelease", 0);
171 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
173 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
175 mono_register_jit_icall (func, name, sig, save);
178 static MonoMethodSignature*
179 signature_dup (MonoImage *image, MonoMethodSignature *sig)
181 MonoMethodSignature *res;
184 res = mono_metadata_signature_alloc (image, sig->param_count);
185 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
186 memcpy (res, sig, sigsize);
191 static MonoMethodSignature*
192 signature_no_pinvoke (MonoMethod *method)
194 MonoMethodSignature *sig = mono_method_signature (method);
196 sig = signature_dup (method->klass->image, sig);
197 sig->pinvoke = FALSE;
203 /* Begin COM Interop related stuff until seperate file */
206 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
207 #ifdef PLATFORM_WIN32
208 #define STDCALL __stdcall
213 /* Upon creation of a CCW, only allocate a weak handle and set the
214 * reference count to 0. If the unmanaged client code decides to addref and
215 * hold onto the CCW, I then allocate a strong handle. Once the reference count
216 * goes back to 0, convert back to a weak handle.
221 GHashTable* vtable_hash;
224 /* This type is the actual pointer passed to unmanaged code
225 * to represent a COM interface.
235 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
237 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
239 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
242 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
244 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
246 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
247 gunichar2** rgszNames, guint32 cNames,
248 guint32 lcid, gint32 *rgDispId);
250 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
251 gpointer riid, guint32 lcid,
252 guint16 wFlags, gpointer pDispParams,
253 gpointer pVarResult, gpointer pExcepInfo,
257 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
260 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
263 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
266 * cominterop_method_signature:
269 * Returns: the corresponding unmanaged method signature for a managed COM
272 static MonoMethodSignature*
273 cominterop_method_signature (MonoMethod* method)
275 MonoMethodSignature *res;
276 MonoImage *image = method->klass->image;
277 MonoMethodSignature *sig = mono_method_signature (method);
278 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
281 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
283 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
286 res = mono_metadata_signature_alloc (image, param_count);
287 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
288 memcpy (res, sig, sigsize);
290 // now move args forward one
291 for (i = sig->param_count-1; i >= 0; i--)
292 res->params[i+1] = sig->params[i];
294 // first arg is interface pointer
295 res->params[0] = &mono_defaults.int_class->byval_arg;
301 // last arg is return type
302 if (!MONO_TYPE_IS_VOID (sig->ret)) {
303 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
304 res->params[param_count-1]->byref = 1;
305 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
308 // return type is always int32 (HRESULT)
309 res->ret = &mono_defaults.int32_class->byval_arg;
313 res->pinvoke = FALSE;
319 res->param_count = param_count;
321 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
322 #ifdef PLATFORM_WIN32
323 res->call_convention = MONO_CALL_STDCALL;
325 res->call_convention = MONO_CALL_C;
332 * cominterop_get_function_pointer:
333 * @itf: a pointer to the COM interface
334 * @slot: the vtable slot of the method pointer to return
336 * Returns: the unmanaged vtable function pointer from the interface
339 cominterop_get_function_pointer (gpointer itf, int slot)
342 func = *((*(gpointer**)itf)+slot);
347 * cominterop_object_is_com_object:
348 * @obj: a pointer to the object
350 * Returns: a value indicating if the object is a
351 * Runtime Callable Wrapper (RCW) for a COM object
354 cominterop_object_is_rcw (MonoObject *obj)
356 MonoClass *klass = NULL;
357 MonoRealProxy* real_proxy = NULL;
360 klass = mono_object_class (obj);
361 if (klass != mono_defaults.transparent_proxy_class)
364 real_proxy = ((MonoTransparentProxy*)obj)->rp;
368 klass = mono_object_class (real_proxy);
369 return (klass && klass == mono_defaults.com_interop_proxy_class);
373 cominterop_get_com_slot_begin (MonoClass* klass)
375 static MonoClass *interface_type_attribute = NULL;
376 MonoCustomAttrInfo *cinfo = NULL;
377 MonoInterfaceTypeAttribute* itf_attr = NULL;
379 if (!interface_type_attribute)
380 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
381 cinfo = mono_custom_attrs_from_class (klass);
383 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
385 mono_custom_attrs_free (cinfo);
388 if (itf_attr && itf_attr->intType == 1)
389 return 3; /* 3 methods in IUnknown*/
391 return 7; /* 7 methods in IDispatch*/
395 * cominterop_get_method_interface:
396 * @method: method being called
398 * Returns: the MonoClass* representing the interface on which
399 * the method is defined.
402 cominterop_get_method_interface (MonoMethod* method)
404 MonoClass *ic = method->klass;
406 /* if method is on a class, we need to look up interface method exists on */
407 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
408 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
411 for (i = 0; i < ifaces->len; ++i) {
413 ic = g_ptr_array_index (ifaces, i);
414 offset = mono_class_interface_offset (method->klass, ic);
415 if (method->slot >= offset && method->slot < offset + ic->method.count)
419 g_ptr_array_free (ifaces, TRUE);
424 g_assert (MONO_CLASS_IS_INTERFACE (ic));
430 * cominterop_get_com_slot_for_method:
433 * Returns: the method's slot in the COM interface vtable
436 cominterop_get_com_slot_for_method (MonoMethod* method)
438 guint32 slot = method->slot;
439 MonoClass *ic = method->klass;
441 /* if method is on a class, we need to look up interface method exists on */
442 if (!MONO_CLASS_IS_INTERFACE(ic)) {
444 ic = cominterop_get_method_interface (method);
445 offset = mono_class_interface_offset (method->klass, ic);
446 g_assert(offset >= 0);
451 g_assert (MONO_CLASS_IS_INTERFACE (ic));
453 return slot + cominterop_get_com_slot_begin (ic);
458 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
461 cominterop_class_guid (MonoClass* klass, guint8* guid)
463 static MonoClass *GuidAttribute = NULL;
464 MonoCustomAttrInfo *cinfo;
466 /* Handle the GuidAttribute */
468 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
470 cinfo = mono_custom_attrs_from_class (klass);
472 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
477 mono_custom_attrs_free (cinfo);
479 cominterop_mono_string_to_guid (attr->guid, guid);
486 * cominterop_get_interface:
487 * @obj: managed wrapper object containing COM object
488 * @ic: interface type to retrieve for COM object
490 * Returns: the COM interface requested
493 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
498 g_assert (MONO_CLASS_IS_INTERFACE (ic));
500 mono_cominterop_lock ();
502 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
503 mono_cominterop_unlock ();
507 int found = cominterop_class_guid (ic, iid);
510 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
511 if (hr < 0 && throw_exception) {
512 static MonoMethod* throw_exception_for_hr = NULL;
514 void* params[1] = {&hr};
515 if (!throw_exception_for_hr)
516 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
517 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
518 mono_raise_exception (ex);
521 if (hr >= 0 && itf) {
522 mono_cominterop_lock ();
524 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
525 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
526 mono_cominterop_unlock ();
537 cominterop_get_hresult_for_exception (MonoException* exc)
543 #endif /* DISABLE_COM */
546 mono_marshal_init (void)
548 static gboolean module_initialized = FALSE;
550 if (!module_initialized) {
551 char* com_provider_env = NULL;
552 module_initialized = TRUE;
553 InitializeCriticalSection (&marshal_mutex);
554 InitializeCriticalSection (&cominterop_mutex);
555 last_error_tls_id = TlsAlloc ();
556 load_type_info_tls_id = TlsAlloc ();
558 com_provider_env = getenv ("MONO_COM");
559 if (com_provider_env && !strcmp(com_provider_env, "MS"))
560 com_provider = MONO_COM_MS;
562 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
563 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
564 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
565 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
566 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
567 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
568 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
569 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
570 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
571 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
572 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
573 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
574 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
575 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
576 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
577 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
578 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
579 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
580 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
581 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
582 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
583 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
584 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
585 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
586 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
587 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
588 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
589 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
590 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
591 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
592 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
593 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
594 register_icall (g_free, "g_free", "void ptr", FALSE);
595 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
596 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
597 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
598 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
599 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
600 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
601 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
602 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
603 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
604 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
605 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
606 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
607 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
608 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
609 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
611 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
612 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
613 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
614 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
615 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
616 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
617 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
618 #endif /* DISABLE_COM */
623 mono_marshal_cleanup (void)
625 TlsFree (load_type_info_tls_id);
626 TlsFree (last_error_tls_id);
627 DeleteCriticalSection (&marshal_mutex);
628 DeleteCriticalSection (&cominterop_mutex);
631 MonoClass *byte_array_class;
632 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
633 static MonoMethod *method_set_context, *method_get_context;
634 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
637 mono_remoting_marshal_init (void)
641 static gboolean module_initialized = FALSE;
643 if (!module_initialized) {
644 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
645 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
646 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
647 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
649 klass = mono_defaults.real_proxy_class;
650 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
652 klass = mono_defaults.exception_class;
653 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
655 klass = mono_defaults.thread_class;
656 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
658 klass = mono_defaults.appdomain_class;
659 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
660 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
662 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
663 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
665 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
666 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
668 module_initialized = TRUE;
673 mono_delegate_to_ftnptr (MonoDelegate *delegate)
675 MonoMethod *method, *wrapper;
681 if (delegate->delegate_trampoline)
682 return delegate->delegate_trampoline;
684 klass = ((MonoObject *)delegate)->vtable->klass;
685 g_assert (klass->delegate);
687 method = delegate->method;
689 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
691 delegate->delegate_trampoline = mono_compile_method (wrapper);
693 // Add the delegate to the delegate hash table
694 delegate_hash_table_add (delegate);
696 /* when the object is collected, collect the dynamic method, too */
697 mono_object_register_finalizer ((MonoObject*)delegate);
699 return delegate->delegate_trampoline;
703 * this hash table maps from a delegate trampoline object to a weak reference
704 * of the delegate. As an optimizations with a non-moving GC we store the
705 * object pointer itself, otherwise we use a GC handle.
707 static GHashTable *delegate_hash_table;
710 delegate_hash_table_new (void) {
711 return g_hash_table_new (NULL, NULL);
715 delegate_hash_table_remove (MonoDelegate *d)
717 #ifdef HAVE_MOVING_COLLECTOR
720 mono_marshal_lock ();
721 if (delegate_hash_table == NULL)
722 delegate_hash_table = delegate_hash_table_new ();
723 #ifdef HAVE_MOVING_COLLECTOR
724 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
726 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
727 mono_marshal_unlock ();
728 #ifdef HAVE_MOVING_COLLECTOR
729 mono_gchandle_free (gchandle);
734 delegate_hash_table_add (MonoDelegate *d)
736 #ifdef HAVE_MOVING_COLLECTOR
737 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
739 mono_marshal_lock ();
740 if (delegate_hash_table == NULL)
741 delegate_hash_table = delegate_hash_table_new ();
742 #ifdef HAVE_MOVING_COLLECTOR
743 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
745 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
747 mono_marshal_unlock ();
751 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
753 #ifdef HAVE_MOVING_COLLECTOR
758 mono_marshal_lock ();
759 if (delegate_hash_table == NULL)
760 delegate_hash_table = delegate_hash_table_new ();
762 #ifdef HAVE_MOVING_COLLECTOR
763 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
764 mono_marshal_unlock ();
766 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
770 d = g_hash_table_lookup (delegate_hash_table, ftn);
771 mono_marshal_unlock ();
774 /* This is a native function, so construct a delegate for it */
775 static MonoClass *UnmanagedFunctionPointerAttribute;
776 MonoMethodSignature *sig;
778 MonoMarshalSpec **mspecs;
779 MonoCustomAttrInfo *cinfo;
780 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
781 MonoMethod *invoke = mono_get_delegate_invoke (klass);
782 MonoMethodPInvoke piinfo;
785 memset (&piinfo, 0, sizeof (piinfo));
786 if (!UnmanagedFunctionPointerAttribute)
787 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
789 /* The attribute is only available in Net 2.0 */
790 if (UnmanagedFunctionPointerAttribute) {
792 * The pinvoke attributes are stored in a real custom attribute so we have to
795 cinfo = mono_custom_attrs_from_class (klass);
797 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
799 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
802 mono_custom_attrs_free (cinfo);
806 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
807 mono_method_get_marshal_info (invoke, mspecs);
808 /* Freed below so don't alloc from mempool */
809 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
812 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
814 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
816 mono_metadata_free_marshal_spec (mspecs [i]);
820 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
821 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
824 if (d->object.vtable->domain != mono_domain_get ())
825 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
831 mono_delegate_free_ftnptr (MonoDelegate *delegate)
836 delegate_hash_table_remove (delegate);
838 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
840 if (!delegate->target) {
841 /* The wrapper method is shared between delegates -> no need to free it */
846 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
849 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
854 mono_array_to_savearray (MonoArray *array)
859 g_assert_not_reached ();
864 mono_array_to_lparray (MonoArray *array)
869 /* fixme: maybe we need to make a copy */
870 return array->vector;
874 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
876 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
878 if (elclass == mono_defaults.byte_class) {
879 GError *error = NULL;
883 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
886 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
890 g_error_free (error);
893 g_assert_not_reached ();
897 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
899 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
901 if (elclass == mono_defaults.byte_class) {
903 GError *error = NULL;
905 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
907 MonoException *exc = mono_get_exception_argument ("string", error->message);
908 g_error_free (error);
909 mono_raise_exception (exc);
912 memcpy (native_arr, as, MIN (strlen (as), elnum));
915 g_assert_not_reached ();
920 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
922 GError *error = NULL;
932 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
934 if (items_written > mono_stringbuilder_capacity (sb))
935 items_written = mono_stringbuilder_capacity (sb);
938 if (! sb->str || sb->str == sb->cached_str) {
939 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
940 sb->cached_str = NULL;
943 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
944 sb->length = items_written;
946 g_error_free (error);
952 mono_string_utf8_to_builder2 (char *text)
955 MonoStringBuilder *sb;
956 static MonoClass *string_builder_class;
957 static MonoMethod *sb_ctor;
964 if (!string_builder_class) {
965 MonoMethodDesc *desc;
967 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
968 g_assert (string_builder_class);
969 desc = mono_method_desc_new (":.ctor(int)", FALSE);
970 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
972 mono_method_desc_free (desc);
977 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
980 mono_runtime_invoke (sb_ctor, sb, args, &exc);
983 mono_string_utf8_to_builder (sb, text);
989 * FIXME: This routine does not seem to do what it seems to do
990 * the @text is never copied into the string builder
993 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1000 g_assert (mono_string_chars (sb->str) == text);
1002 for (len = 0; text [len] != 0; ++len)
1009 * mono_string_builder_to_utf8:
1010 * @sb: the string builder
1012 * Converts to utf8 the contents of the MonoStringBuilder.
1014 * Returns: a utf8 string with the contents of the StringBuilder.
1016 * The return value must be released with g_free.
1019 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1021 GError *error = NULL;
1028 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
1030 * The sb could have been allocated with the default capacity and be empty.
1031 * we need to alloc a buffer of the default capacity in this case.
1033 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1034 sb->cached_str = NULL;
1037 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
1039 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
1041 g_error_free (error);
1042 mono_marshal_free (res);
1043 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1045 memcpy (res, tmp, sb->length + 1);
1053 * mono_string_builder_to_utf16:
1054 * @sb: the string builder
1056 * Converts to utf16 the contents of the MonoStringBuilder.
1058 * Returns: a utf16 string with the contents of the StringBuilder.
1060 * The return value must not be freed.
1063 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1071 * The stringbuilder might not have ownership of this string. If this is
1072 * the case, we must duplicate the string, so that we don't munge immutable
1075 if (sb->str == sb->cached_str) {
1077 * The sb could have been allocated with the default capacity and be empty.
1078 * we need to alloc a buffer of the default capacity in this case.
1080 if (sb->str->length == 0)
1081 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1083 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1084 sb->cached_str = NULL;
1087 return mono_string_chars (sb->str);
1091 mono_string_to_lpstr (MonoString *s)
1093 #ifdef PLATFORM_WIN32
1096 GError *error = NULL;
1102 as = CoTaskMemAlloc (1);
1107 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1109 MonoException *exc = mono_get_exception_argument ("string", error->message);
1110 g_error_free (error);
1111 mono_raise_exception(exc);
1114 as = CoTaskMemAlloc (len + 1);
1115 memcpy (as, tmp, len + 1);
1120 return mono_string_to_utf8 (s);
1125 mono_string_to_ansibstr (MonoString *string_obj)
1127 g_error ("UnmanagedMarshal.BStr is not implemented.");
1131 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
1132 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
1133 typedef void (*SysFreeStringFunc)(gunichar* str);
1135 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
1136 static SysStringLenFunc sys_string_len_ms = NULL;
1137 static SysFreeStringFunc sys_free_string_ms = NULL;
1140 init_com_provider_ms (void)
1142 static gboolean initialized = FALSE;
1144 MonoDl *module = NULL;
1145 const char* scope = "liboleaut32.so";
1150 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
1152 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
1153 g_assert_not_reached ();
1156 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
1158 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
1159 g_assert_not_reached ();
1163 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
1165 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
1166 g_assert_not_reached ();
1170 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
1172 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
1173 g_assert_not_reached ();
1182 mono_string_to_bstr (MonoString *string_obj)
1186 #ifdef PLATFORM_WIN32
1187 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1189 if (com_provider == MONO_COM_DEFAULT) {
1190 int slen = mono_string_length (string_obj);
1191 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
1192 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
1195 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
1196 * ((guint32 *) ret) = slen * sizeof(gunichar2);
1197 ret [4 + slen * sizeof(gunichar2)] = 0;
1198 ret [5 + slen * sizeof(gunichar2)] = 0;
1201 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1202 gpointer ret = NULL;
1203 gunichar* str = NULL;
1205 len = mono_string_length (string_obj);
1206 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
1208 ret = sys_alloc_string_len_ms (str, len);
1212 g_assert_not_reached ();
1218 mono_string_from_bstr (gpointer bstr)
1222 #ifdef PLATFORM_WIN32
1223 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1225 if (com_provider == MONO_COM_DEFAULT) {
1226 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
1227 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1228 MonoString* str = NULL;
1230 gunichar2* utf16 = NULL;
1232 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
1233 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
1237 g_assert_not_reached ();
1244 mono_free_bstr (gpointer bstr)
1248 #ifdef PLATFORM_WIN32
1249 SysFreeString ((BSTR)bstr);
1251 if (com_provider == MONO_COM_DEFAULT) {
1252 g_free (((char *)bstr) - 4);
1253 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1254 sys_free_string_ms (bstr);
1256 g_assert_not_reached ();
1263 * mono_string_to_byvalstr:
1264 * @dst: Where to store the null-terminated utf8 decoded string.
1265 * @src: the MonoString to copy.
1266 * @size: the maximum number of bytes to copy.
1268 * Copies the MonoString pointed to by @src as a utf8 string
1269 * into @dst, it copies at most @size bytes into the destination.
1272 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1277 g_assert (dst != NULL);
1278 g_assert (size > 0);
1280 memset (dst, 0, size);
1284 s = mono_string_to_utf8 (src);
1285 len = MIN (size, strlen (s));
1288 memcpy (dst, s, len);
1293 * mono_string_to_byvalwstr:
1294 * @dst: Where to store the null-terminated utf16 decoded string.
1295 * @src: the MonoString to copy.
1296 * @size: the maximum number of bytes to copy.
1298 * Copies the MonoString pointed to by @src as a utf16 string into
1299 * @dst, it copies at most @size bytes into the destination (including
1300 * a terminating 16-bit zero terminator).
1303 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1307 g_assert (dst != NULL);
1308 g_assert (size > 1);
1311 memset (dst, 0, size * 2);
1315 len = MIN (size, (mono_string_length (src)));
1316 memcpy (dst, mono_string_chars (src), size * 2);
1317 if (size <= mono_string_length (src))
1319 *((gunichar2 *) dst + len) = 0;
1323 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1326 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1327 mono_mb_emit_byte (mb, CEE_LDIND_I);
1328 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1329 mono_mb_emit_byte (mb, CEE_ADD);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I);
1331 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1332 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1333 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1334 pos = mono_mb_emit_branch (mb, branch_code);
1339 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1342 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1343 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1344 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1345 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1346 mono_mb_emit_icon (mb, -1);
1347 pos = mono_mb_emit_branch (mb, branch_code);
1352 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1354 static int offset = -1;
1358 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1360 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1361 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1362 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1363 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1364 mono_mb_emit_ldflda (mb, offset);
1365 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1366 mono_mb_emit_icon (mb, mask);
1367 mono_mb_emit_byte (mb, CEE_AND);
1368 mono_mb_emit_icon (mb, 0);
1369 return mono_mb_emit_branch (mb, branch_code);
1375 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1377 // get function pointer from 1st arg, the COM interface pointer
1378 mono_mb_emit_ldarg (mb, 0);
1379 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1380 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1382 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1383 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1384 mono_mb_emit_calli (mb, sig);
1385 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1386 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1389 #endif /* DISABLE_COM */
1392 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1394 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1398 mono_type_to_ldind (MonoType *type)
1404 switch (type->type) {
1406 return CEE_LDIND_I1;
1408 case MONO_TYPE_BOOLEAN:
1409 return CEE_LDIND_U1;
1411 return CEE_LDIND_I2;
1413 case MONO_TYPE_CHAR:
1414 return CEE_LDIND_U2;
1416 return CEE_LDIND_I4;
1418 return CEE_LDIND_U4;
1422 case MONO_TYPE_FNPTR:
1424 case MONO_TYPE_CLASS:
1425 case MONO_TYPE_STRING:
1426 case MONO_TYPE_OBJECT:
1427 case MONO_TYPE_SZARRAY:
1428 case MONO_TYPE_ARRAY:
1429 return CEE_LDIND_REF;
1432 return CEE_LDIND_I8;
1434 return CEE_LDIND_R4;
1436 return CEE_LDIND_R8;
1437 case MONO_TYPE_VALUETYPE:
1438 if (type->data.klass->enumtype) {
1439 type = type->data.klass->enum_basetype;
1443 case MONO_TYPE_TYPEDBYREF:
1445 case MONO_TYPE_GENERICINST:
1446 type = &type->data.generic_class->container_class->byval_arg;
1449 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1455 mono_type_to_stind (MonoType *type)
1461 switch (type->type) {
1464 case MONO_TYPE_BOOLEAN:
1465 return CEE_STIND_I1;
1468 case MONO_TYPE_CHAR:
1469 return CEE_STIND_I2;
1472 return CEE_STIND_I4;
1476 case MONO_TYPE_FNPTR:
1478 case MONO_TYPE_CLASS:
1479 case MONO_TYPE_STRING:
1480 case MONO_TYPE_OBJECT:
1481 case MONO_TYPE_SZARRAY:
1482 case MONO_TYPE_ARRAY:
1483 return CEE_STIND_REF;
1486 return CEE_STIND_I8;
1488 return CEE_STIND_R4;
1490 return CEE_STIND_R8;
1491 case MONO_TYPE_VALUETYPE:
1492 if (type->data.klass->enumtype) {
1493 type = type->data.klass->enum_basetype;
1497 case MONO_TYPE_TYPEDBYREF:
1499 case MONO_TYPE_GENERICINST:
1500 type = &type->data.generic_class->container_class->byval_arg;
1503 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1509 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1512 case MONO_MARSHAL_CONV_BOOL_I4:
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_ldloc (mb, 0);
1515 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1516 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1517 mono_mb_emit_byte (mb, 3);
1518 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1519 mono_mb_emit_byte (mb, CEE_BR_S);
1520 mono_mb_emit_byte (mb, 1);
1521 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1522 mono_mb_emit_byte (mb, CEE_STIND_I1);
1524 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1525 mono_mb_emit_ldloc (mb, 1);
1526 mono_mb_emit_ldloc (mb, 0);
1527 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1528 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1529 mono_mb_emit_byte (mb, 3);
1530 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1531 mono_mb_emit_byte (mb, CEE_BR_S);
1532 mono_mb_emit_byte (mb, 1);
1533 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1534 mono_mb_emit_byte (mb, CEE_STIND_I1);
1536 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1537 MonoClass *eklass = NULL;
1540 if (type->type == MONO_TYPE_SZARRAY) {
1541 eklass = type->data.klass;
1543 g_assert_not_reached ();
1546 esize = mono_class_native_size (eklass, NULL);
1548 /* create a new array */
1549 mono_mb_emit_ldloc (mb, 1);
1550 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1551 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1552 mono_mb_emit_byte (mb, CEE_STIND_I);
1554 if (eklass->blittable) {
1555 /* copy the elements */
1556 mono_mb_emit_ldloc (mb, 1);
1557 mono_mb_emit_byte (mb, CEE_LDIND_I);
1558 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1559 mono_mb_emit_byte (mb, CEE_ADD);
1560 mono_mb_emit_ldloc (mb, 0);
1561 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1562 mono_mb_emit_byte (mb, CEE_PREFIX1);
1563 mono_mb_emit_byte (mb, CEE_CPBLK);
1566 int array_var, src_var, dst_var, index_var;
1567 guint32 label2, label3;
1569 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1570 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1571 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1574 mono_mb_emit_ldloc (mb, 1);
1575 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1576 mono_mb_emit_stloc (mb, array_var);
1578 /* save the old src pointer */
1579 mono_mb_emit_ldloc (mb, 0);
1580 mono_mb_emit_stloc (mb, src_var);
1581 /* save the old dst pointer */
1582 mono_mb_emit_ldloc (mb, 1);
1583 mono_mb_emit_stloc (mb, dst_var);
1585 /* Emit marshalling loop */
1586 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1587 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1588 mono_mb_emit_stloc (mb, index_var);
1591 label2 = mono_mb_get_label (mb);
1592 mono_mb_emit_ldloc (mb, index_var);
1593 mono_mb_emit_ldloc (mb, array_var);
1594 mono_mb_emit_byte (mb, CEE_LDLEN);
1595 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1597 /* src is already set */
1600 mono_mb_emit_ldloc (mb, array_var);
1601 mono_mb_emit_ldloc (mb, index_var);
1602 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1603 mono_mb_emit_stloc (mb, 1);
1605 /* Do the conversion */
1606 emit_struct_conv (mb, eklass, TRUE);
1609 mono_mb_emit_add_to_local (mb, index_var, 1);
1611 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1613 mono_mb_patch_branch (mb, label3);
1615 /* restore the old src pointer */
1616 mono_mb_emit_ldloc (mb, src_var);
1617 mono_mb_emit_stloc (mb, 0);
1618 /* restore the old dst pointer */
1619 mono_mb_emit_ldloc (mb, dst_var);
1620 mono_mb_emit_stloc (mb, 1);
1624 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1625 MonoClass *eclass = mono_defaults.char_class;
1627 /* create a new array */
1628 mono_mb_emit_ldloc (mb, 1);
1629 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1630 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1631 mono_mb_emit_byte (mb, CEE_STIND_REF);
1633 mono_mb_emit_ldloc (mb, 1);
1634 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1635 mono_mb_emit_ldloc (mb, 0);
1636 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1637 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1638 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1641 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1642 mono_mb_emit_ldloc (mb, 1);
1643 mono_mb_emit_ldloc (mb, 0);
1644 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1645 mono_mb_emit_byte (mb, CEE_STIND_REF);
1647 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1648 mono_mb_emit_ldloc (mb, 1);
1649 mono_mb_emit_ldloc (mb, 0);
1650 mono_mb_emit_icall (mb, mono_string_from_utf16);
1651 mono_mb_emit_byte (mb, CEE_STIND_REF);
1653 case MONO_MARSHAL_CONV_STR_LPTSTR:
1654 mono_mb_emit_ldloc (mb, 1);
1655 mono_mb_emit_ldloc (mb, 0);
1656 mono_mb_emit_byte (mb, CEE_LDIND_I);
1657 #ifdef PLATFORM_WIN32
1658 mono_mb_emit_icall (mb, mono_string_from_utf16);
1660 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1662 mono_mb_emit_byte (mb, CEE_STIND_REF);
1664 case MONO_MARSHAL_CONV_STR_LPSTR:
1665 mono_mb_emit_ldloc (mb, 1);
1666 mono_mb_emit_ldloc (mb, 0);
1667 mono_mb_emit_byte (mb, CEE_LDIND_I);
1668 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1669 mono_mb_emit_byte (mb, CEE_STIND_REF);
1671 case MONO_MARSHAL_CONV_STR_LPWSTR:
1672 mono_mb_emit_ldloc (mb, 1);
1673 mono_mb_emit_ldloc (mb, 0);
1674 mono_mb_emit_byte (mb, CEE_LDIND_I);
1675 mono_mb_emit_icall (mb, mono_string_from_utf16);
1676 mono_mb_emit_byte (mb, CEE_STIND_REF);
1678 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1679 MonoClass *klass = mono_class_from_mono_type (type);
1680 int src_var, dst_var;
1682 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1683 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1685 /* *dst = new object */
1686 mono_mb_emit_ldloc (mb, 1);
1687 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1688 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1689 mono_mb_emit_byte (mb, CEE_STIND_REF);
1691 /* save the old src pointer */
1692 mono_mb_emit_ldloc (mb, 0);
1693 mono_mb_emit_stloc (mb, src_var);
1694 /* save the old dst pointer */
1695 mono_mb_emit_ldloc (mb, 1);
1696 mono_mb_emit_stloc (mb, dst_var);
1698 /* dst = pointer to newly created object data */
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_byte (mb, CEE_LDIND_I);
1701 mono_mb_emit_icon (mb, sizeof (MonoObject));
1702 mono_mb_emit_byte (mb, CEE_ADD);
1703 mono_mb_emit_stloc (mb, 1);
1705 emit_struct_conv (mb, klass, TRUE);
1707 /* restore the old src pointer */
1708 mono_mb_emit_ldloc (mb, src_var);
1709 mono_mb_emit_stloc (mb, 0);
1710 /* restore the old dst pointer */
1711 mono_mb_emit_ldloc (mb, dst_var);
1712 mono_mb_emit_stloc (mb, 1);
1715 case MONO_MARSHAL_CONV_DEL_FTN: {
1716 MonoClass *klass = mono_class_from_mono_type (type);
1718 mono_mb_emit_ldloc (mb, 1);
1719 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1720 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1721 mono_mb_emit_ldloc (mb, 0);
1722 mono_mb_emit_byte (mb, CEE_LDIND_I);
1723 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1724 mono_mb_emit_byte (mb, CEE_STIND_REF);
1727 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1728 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1732 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1733 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1734 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1735 static MonoClass* com_interop_proxy_class = NULL;
1736 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1737 static MonoMethod* get_transparent_proxy = NULL;
1739 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1740 MonoClass *klass = NULL;
1742 /* COM types are initialized lazily */
1743 mono_init_com_types ();
1745 klass = mono_class_from_mono_type (type);
1747 mono_mb_emit_ldloc (mb, 1);
1748 mono_mb_emit_byte (mb, CEE_LDNULL);
1749 mono_mb_emit_byte (mb, CEE_STIND_REF);
1751 mono_mb_emit_ldloc (mb, 0);
1752 mono_mb_emit_byte (mb, CEE_LDIND_I);
1753 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1755 /* load dst to store later */
1756 mono_mb_emit_ldloc (mb, 1);
1758 mono_mb_emit_ldloc (mb, 0);
1759 mono_mb_emit_byte (mb, CEE_LDIND_I);
1760 mono_mb_emit_icon (mb, TRUE);
1761 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1762 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1764 if (!com_interop_proxy_class)
1765 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1766 if (!com_interop_proxy_get_proxy)
1767 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1768 if (!get_transparent_proxy)
1769 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1771 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_byte (mb, CEE_LDIND_I);
1775 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1776 mono_mb_emit_icall (mb, type_from_handle);
1777 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1778 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1779 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1781 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1783 mono_mb_emit_byte (mb, CEE_STIND_REF);
1784 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1786 /* is already managed object */
1787 mono_mb_patch_short_branch (mb, pos_ccw);
1788 mono_mb_emit_ldloc (mb, 0);
1789 mono_mb_emit_byte (mb, CEE_LDIND_I);
1790 mono_mb_emit_icon (mb, TRUE);
1791 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1793 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1795 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1797 mono_mb_emit_byte (mb, CEE_STIND_REF);
1799 mono_mb_patch_short_branch (mb, pos_end);
1801 mono_mb_patch_short_branch (mb, pos_null);
1804 #endif /* DISABLE_COM */
1806 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1808 * Passing SafeHandles as ref does not allow the unmanaged code
1809 * to change the SafeHandle value. If the value is changed,
1810 * we should issue a diagnostic exception (NotSupportedException)
1811 * that informs the user that changes to handles in unmanaged code
1814 * Since we currently have no access to the original
1815 * SafeHandle that was used during the marshalling,
1816 * for now we just ignore this, and ignore/discard any
1817 * changes that might have happened to the handle.
1822 case MONO_MARSHAL_CONV_HANDLEREF: {
1824 * Passing HandleRefs in a struct that is ref()ed does not
1825 * copy the values back to the HandleRef
1830 case MONO_MARSHAL_CONV_STR_BSTR:
1831 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1832 case MONO_MARSHAL_CONV_STR_TBSTR:
1833 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1835 g_warning ("marshaling conversion %d not implemented", conv);
1836 g_assert_not_reached ();
1841 conv_to_icall (MonoMarshalConv conv)
1844 case MONO_MARSHAL_CONV_STR_LPWSTR:
1845 return mono_marshal_string_to_utf16;
1846 case MONO_MARSHAL_CONV_LPWSTR_STR:
1847 return mono_string_from_utf16;
1848 case MONO_MARSHAL_CONV_LPSTR_STR:
1849 return mono_string_new_wrapper;
1850 case MONO_MARSHAL_CONV_STR_LPTSTR:
1851 #ifdef PLATFORM_WIN32
1852 return mono_marshal_string_to_utf16;
1854 return mono_string_to_lpstr;
1856 case MONO_MARSHAL_CONV_STR_LPSTR:
1857 return mono_string_to_lpstr;
1858 case MONO_MARSHAL_CONV_STR_BSTR:
1859 return mono_string_to_bstr;
1860 case MONO_MARSHAL_CONV_BSTR_STR:
1861 return mono_string_from_bstr;
1862 case MONO_MARSHAL_CONV_STR_TBSTR:
1863 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1864 return mono_string_to_ansibstr;
1865 case MONO_MARSHAL_CONV_SB_LPSTR:
1866 return mono_string_builder_to_utf8;
1867 case MONO_MARSHAL_CONV_SB_LPTSTR:
1868 #ifdef PLATFORM_WIN32
1869 return mono_string_builder_to_utf16;
1871 return mono_string_builder_to_utf8;
1873 case MONO_MARSHAL_CONV_SB_LPWSTR:
1874 return mono_string_builder_to_utf16;
1875 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1876 return mono_array_to_savearray;
1877 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1878 return mono_array_to_lparray;
1879 case MONO_MARSHAL_CONV_DEL_FTN:
1880 return mono_delegate_to_ftnptr;
1881 case MONO_MARSHAL_CONV_FTN_DEL:
1882 return mono_ftnptr_to_delegate;
1883 case MONO_MARSHAL_CONV_LPSTR_SB:
1884 return mono_string_utf8_to_builder;
1885 case MONO_MARSHAL_CONV_LPTSTR_SB:
1886 #ifdef PLATFORM_WIN32
1887 return mono_string_utf16_to_builder;
1889 return mono_string_utf8_to_builder;
1891 case MONO_MARSHAL_CONV_LPWSTR_SB:
1892 return mono_string_utf16_to_builder;
1893 case MONO_MARSHAL_FREE_ARRAY:
1894 return mono_marshal_free_array;
1895 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1896 return mono_string_to_byvalstr;
1897 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1898 return mono_string_to_byvalwstr;
1900 g_assert_not_reached ();
1907 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1912 case MONO_MARSHAL_CONV_BOOL_I4:
1913 mono_mb_emit_ldloc (mb, 1);
1914 mono_mb_emit_ldloc (mb, 0);
1915 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1916 mono_mb_emit_byte (mb, CEE_STIND_I4);
1918 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1919 mono_mb_emit_ldloc (mb, 1);
1920 mono_mb_emit_ldloc (mb, 0);
1921 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1922 mono_mb_emit_byte (mb, CEE_NEG);
1923 mono_mb_emit_byte (mb, CEE_STIND_I2);
1925 case MONO_MARSHAL_CONV_STR_LPWSTR:
1926 case MONO_MARSHAL_CONV_STR_LPSTR:
1927 case MONO_MARSHAL_CONV_STR_LPTSTR:
1928 case MONO_MARSHAL_CONV_STR_BSTR:
1929 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1930 case MONO_MARSHAL_CONV_STR_TBSTR: {
1933 /* free space if free == true */
1934 mono_mb_emit_ldloc (mb, 2);
1935 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1936 mono_mb_emit_ldloc (mb, 1);
1937 mono_mb_emit_byte (mb, CEE_LDIND_I);
1938 mono_mb_emit_icall (mb, g_free);
1939 mono_mb_patch_short_branch (mb, pos);
1941 mono_mb_emit_ldloc (mb, 1);
1942 mono_mb_emit_ldloc (mb, 0);
1943 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1944 mono_mb_emit_icall (mb, conv_to_icall (conv));
1945 mono_mb_emit_byte (mb, CEE_STIND_I);
1948 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1949 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1950 case MONO_MARSHAL_CONV_DEL_FTN:
1951 mono_mb_emit_ldloc (mb, 1);
1952 mono_mb_emit_ldloc (mb, 0);
1953 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1954 mono_mb_emit_icall (mb, conv_to_icall (conv));
1955 mono_mb_emit_byte (mb, CEE_STIND_I);
1957 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1958 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1961 mono_mb_emit_ldloc (mb, 1); /* dst */
1962 mono_mb_emit_ldloc (mb, 0);
1963 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1964 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1965 mono_mb_emit_icall (mb, conv_to_icall (conv));
1968 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1969 MonoClass *eklass = NULL;
1972 if (type->type == MONO_TYPE_SZARRAY) {
1973 eklass = type->data.klass;
1975 g_assert_not_reached ();
1978 if (eklass->valuetype)
1979 esize = mono_class_native_size (eklass, NULL);
1981 esize = sizeof (gpointer);
1983 mono_mb_emit_ldloc (mb, 0);
1984 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1985 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1987 if (eklass->blittable) {
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_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1992 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1993 mono_mb_emit_byte (mb, CEE_PREFIX1);
1994 mono_mb_emit_byte (mb, CEE_CPBLK);
1996 int array_var, src_var, dst_var, index_var;
1997 guint32 label2, label3;
1999 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
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);
2004 mono_mb_emit_ldloc (mb, 0);
2005 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2006 mono_mb_emit_stloc (mb, array_var);
2008 /* save the old src pointer */
2009 mono_mb_emit_ldloc (mb, 0);
2010 mono_mb_emit_stloc (mb, src_var);
2011 /* save the old dst pointer */
2012 mono_mb_emit_ldloc (mb, 1);
2013 mono_mb_emit_stloc (mb, dst_var);
2015 /* Emit marshalling loop */
2016 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2017 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2018 mono_mb_emit_stloc (mb, index_var);
2021 label2 = mono_mb_get_label (mb);
2022 mono_mb_emit_ldloc (mb, index_var);
2023 mono_mb_emit_ldloc (mb, array_var);
2024 mono_mb_emit_byte (mb, CEE_LDLEN);
2025 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2028 mono_mb_emit_ldloc (mb, array_var);
2029 mono_mb_emit_ldloc (mb, index_var);
2030 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2031 mono_mb_emit_stloc (mb, 0);
2033 /* dst is already set */
2035 /* Do the conversion */
2036 emit_struct_conv (mb, eklass, FALSE);
2039 mono_mb_emit_add_to_local (mb, index_var, 1);
2041 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2043 mono_mb_patch_branch (mb, label3);
2045 /* restore the old src pointer */
2046 mono_mb_emit_ldloc (mb, src_var);
2047 mono_mb_emit_stloc (mb, 0);
2048 /* restore the old dst pointer */
2049 mono_mb_emit_ldloc (mb, dst_var);
2050 mono_mb_emit_stloc (mb, 1);
2053 mono_mb_patch_branch (mb, pos);
2056 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2057 mono_mb_emit_ldloc (mb, 0);
2058 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2059 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2061 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_ptr (mb, mono_defaults.byte_class);
2065 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2066 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2067 mono_mb_patch_short_branch (mb, pos);
2070 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2071 int src_var, dst_var;
2073 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2074 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2076 mono_mb_emit_ldloc (mb, 0);
2077 mono_mb_emit_byte (mb, CEE_LDIND_I);
2078 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2080 /* save the old src pointer */
2081 mono_mb_emit_ldloc (mb, 0);
2082 mono_mb_emit_stloc (mb, src_var);
2083 /* save the old dst pointer */
2084 mono_mb_emit_ldloc (mb, 1);
2085 mono_mb_emit_stloc (mb, dst_var);
2087 /* src = pointer to object data */
2088 mono_mb_emit_ldloc (mb, 0);
2089 mono_mb_emit_byte (mb, CEE_LDIND_I);
2090 mono_mb_emit_icon (mb, sizeof (MonoObject));
2091 mono_mb_emit_byte (mb, CEE_ADD);
2092 mono_mb_emit_stloc (mb, 0);
2094 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2096 /* restore the old src pointer */
2097 mono_mb_emit_ldloc (mb, src_var);
2098 mono_mb_emit_stloc (mb, 0);
2099 /* restore the old dst pointer */
2100 mono_mb_emit_ldloc (mb, dst_var);
2101 mono_mb_emit_stloc (mb, 1);
2103 mono_mb_patch_branch (mb, pos);
2108 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2109 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2110 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2111 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2113 /* COM types are initialized lazily */
2114 mono_init_com_types ();
2117 mono_mb_emit_ldloc (mb, 1);
2118 mono_mb_emit_icon (mb, 0);
2119 mono_mb_emit_byte (mb, CEE_CONV_U);
2120 mono_mb_emit_byte (mb, CEE_STIND_I);
2122 mono_mb_emit_ldloc (mb, 0);
2123 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2125 // if null just break, dst was already inited to 0
2126 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2128 mono_mb_emit_ldloc (mb, 0);
2129 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2130 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2131 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2133 // load dst to store later
2134 mono_mb_emit_ldloc (mb, 1);
2137 mono_mb_emit_ldloc (mb, 0);
2138 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2139 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2140 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2142 /* load the RCW from the ComInteropProxy*/
2143 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2144 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2146 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2147 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2148 mono_mb_emit_icon (mb, TRUE);
2149 mono_mb_emit_icall (mb, cominterop_get_interface);
2152 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2153 static MonoProperty* iunknown = NULL;
2156 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2157 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2159 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2160 static MonoProperty* idispatch = NULL;
2163 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2164 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2167 g_assert_not_reached ();
2169 mono_mb_emit_byte (mb, CEE_STIND_I);
2170 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2173 mono_mb_patch_short_branch (mb, pos_rcw);
2174 /* load dst to store later */
2175 mono_mb_emit_ldloc (mb, 1);
2177 mono_mb_emit_ldloc (mb, 0);
2178 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2180 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2181 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2182 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2183 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2184 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2185 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2187 g_assert_not_reached ();
2188 mono_mb_emit_icall (mb, cominterop_get_ccw);
2189 mono_mb_emit_byte (mb, CEE_STIND_I);
2191 mono_mb_patch_short_branch (mb, pos_end);
2192 mono_mb_patch_short_branch (mb, pos_null);
2195 #endif /* DISABLE_COM */
2197 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2198 int dar_release_slot, pos;
2200 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2203 * The following is ifdefed-out, because I have no way of doing the
2204 * DangerousRelease when destroying the structure
2207 /* set release = false */
2208 mono_mb_emit_icon (mb, 0);
2209 mono_mb_emit_stloc (mb, dar_release_slot);
2210 if (!sh_dangerous_add_ref)
2211 init_safe_handle ();
2213 /* safehandle.DangerousAddRef (ref release) */
2214 mono_mb_emit_ldloc (mb, 0); /* the source */
2215 mono_mb_emit_byte (mb, CEE_LDIND_I);
2216 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2217 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2219 mono_mb_emit_ldloc (mb, 0);
2220 mono_mb_emit_byte (mb, CEE_LDIND_I);
2221 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2222 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2223 mono_mb_patch_branch (mb, pos);
2225 /* Pull the handle field from SafeHandle */
2226 mono_mb_emit_ldloc (mb, 1);
2227 mono_mb_emit_ldloc (mb, 0);
2228 mono_mb_emit_byte (mb, CEE_LDIND_I);
2229 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2230 mono_mb_emit_byte (mb, CEE_LDIND_I);
2231 mono_mb_emit_byte (mb, CEE_STIND_I);
2235 case MONO_MARSHAL_CONV_HANDLEREF: {
2236 mono_mb_emit_ldloc (mb, 1);
2237 mono_mb_emit_ldloc (mb, 0);
2238 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2239 mono_mb_emit_byte (mb, CEE_ADD);
2240 mono_mb_emit_byte (mb, CEE_LDIND_I);
2241 mono_mb_emit_byte (mb, CEE_STIND_I);
2246 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2247 MonoException *exc = mono_get_exception_not_implemented (msg);
2250 mono_raise_exception (exc);
2256 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2258 MonoMarshalType *info;
2262 emit_struct_conv(mb, klass->parent, to_object);
2264 info = mono_marshal_load_type_info (klass);
2266 if (info->native_size == 0)
2269 if (klass->blittable) {
2270 int msize = mono_class_value_size (klass, NULL);
2271 g_assert (msize == info->native_size);
2272 mono_mb_emit_ldloc (mb, 1);
2273 mono_mb_emit_ldloc (mb, 0);
2274 mono_mb_emit_icon (mb, msize);
2275 mono_mb_emit_byte (mb, CEE_PREFIX1);
2276 mono_mb_emit_byte (mb, CEE_CPBLK);
2278 mono_mb_emit_add_to_local (mb, 0, msize);
2279 mono_mb_emit_add_to_local (mb, 1, msize);
2283 for (i = 0; i < info->num_fields; i++) {
2284 MonoMarshalNative ntype;
2285 MonoMarshalConv conv;
2286 MonoType *ftype = info->fields [i].field->type;
2289 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2291 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2294 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2297 msize = klass->instance_size - info->fields [i].field->offset;
2298 usize = info->native_size - info->fields [i].offset;
2300 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2301 usize = info->fields [i + 1].offset - info->fields [i].offset;
2304 if (klass != mono_defaults.safehandle_class){
2306 * FIXME: Should really check for usize==0 and msize>0, but we apply
2307 * the layout to the managed structure as well.
2310 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2311 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2312 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2313 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2314 "reference field at the same offset as another field.",
2315 mono_type_full_name (&klass->byval_arg));
2318 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2319 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2320 mono_type_full_name (&klass->byval_arg));
2325 case MONO_MARSHAL_CONV_NONE: {
2328 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2329 ftype->type == MONO_TYPE_U) {
2330 mono_mb_emit_ldloc (mb, 1);
2331 mono_mb_emit_ldloc (mb, 0);
2332 mono_mb_emit_byte (mb, CEE_LDIND_I);
2333 mono_mb_emit_byte (mb, CEE_STIND_I);
2344 case MONO_TYPE_BOOLEAN:
2347 case MONO_TYPE_CHAR:
2353 mono_mb_emit_ldloc (mb, 1);
2354 mono_mb_emit_ldloc (mb, 0);
2355 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2356 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2358 case MONO_TYPE_VALUETYPE: {
2359 int src_var, dst_var;
2361 if (ftype->data.klass->enumtype) {
2362 ftype = ftype->data.klass->enum_basetype;
2366 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2367 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2369 /* save the old src pointer */
2370 mono_mb_emit_ldloc (mb, 0);
2371 mono_mb_emit_stloc (mb, src_var);
2372 /* save the old dst pointer */
2373 mono_mb_emit_ldloc (mb, 1);
2374 mono_mb_emit_stloc (mb, dst_var);
2376 emit_struct_conv (mb, ftype->data.klass, to_object);
2378 /* restore the old src pointer */
2379 mono_mb_emit_ldloc (mb, src_var);
2380 mono_mb_emit_stloc (mb, 0);
2381 /* restore the old dst pointer */
2382 mono_mb_emit_ldloc (mb, dst_var);
2383 mono_mb_emit_stloc (mb, 1);
2386 case MONO_TYPE_OBJECT: {
2387 mono_init_com_types ();
2389 static MonoMethod *variant_clear = NULL;
2390 static MonoMethod *get_object_for_native_variant = NULL;
2393 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2394 if (!get_object_for_native_variant)
2395 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2396 mono_mb_emit_ldloc (mb, 1);
2397 mono_mb_emit_ldloc (mb, 0);
2398 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2399 mono_mb_emit_byte (mb, CEE_STIND_REF);
2401 mono_mb_emit_ldloc (mb, 0);
2402 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2405 static MonoMethod *get_native_variant_for_object = NULL;
2407 if (!get_native_variant_for_object)
2408 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2410 mono_mb_emit_ldloc (mb, 0);
2411 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2412 mono_mb_emit_ldloc (mb, 1);
2413 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2419 g_warning ("marshaling type %02x not implemented", ftype->type);
2420 g_assert_not_reached ();
2425 int src_var, dst_var;
2427 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2428 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2430 /* save the old src pointer */
2431 mono_mb_emit_ldloc (mb, 0);
2432 mono_mb_emit_stloc (mb, src_var);
2433 /* save the old dst pointer */
2434 mono_mb_emit_ldloc (mb, 1);
2435 mono_mb_emit_stloc (mb, dst_var);
2438 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2440 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2442 /* restore the old src pointer */
2443 mono_mb_emit_ldloc (mb, src_var);
2444 mono_mb_emit_stloc (mb, 0);
2445 /* restore the old dst pointer */
2446 mono_mb_emit_ldloc (mb, dst_var);
2447 mono_mb_emit_stloc (mb, 1);
2452 mono_mb_emit_add_to_local (mb, 0, usize);
2453 mono_mb_emit_add_to_local (mb, 1, msize);
2455 mono_mb_emit_add_to_local (mb, 0, msize);
2456 mono_mb_emit_add_to_local (mb, 1, usize);
2462 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2464 /* Call DestroyStructure */
2465 /* FIXME: Only do this if needed */
2466 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2467 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2468 mono_mb_emit_ldloc (mb, struct_var);
2469 mono_mb_emit_icall (mb, mono_struct_delete_old);
2473 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2477 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2478 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2479 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2482 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2484 mono_mb_emit_icall (mb, checkpoint_func);
2486 mono_mb_patch_branch (mb, pos_noabort);
2490 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2492 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2495 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2499 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2501 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2504 static MonoAsyncResult *
2505 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2507 MonoMethodMessage *msg;
2508 MonoDelegate *async_callback;
2512 MonoMethod *method = NULL, *method2 = NULL;
2514 g_assert (delegate);
2516 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2518 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2519 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2521 /* If the target is a proxy, make a direct call. Is proxy's work
2522 // to make the call asynchronous.
2524 MonoAsyncResult *ares;
2526 MonoArray *out_args;
2528 method = delegate->method;
2530 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2531 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2532 g_assert(handle != NULL);
2533 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2534 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2535 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2536 MONO_OBJECT_SETREF (msg, async_result, ares);
2537 msg->call_type = CallType_BeginInvoke;
2539 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2544 klass = delegate->object.vtable->klass;
2546 method = mono_get_delegate_invoke (klass);
2547 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2550 g_assert (method != NULL);
2552 im = mono_get_delegate_invoke (method->klass);
2553 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2555 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2559 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2561 int i, params_var, tmp_var;
2563 /* allocate local (pointer) *params[] */
2564 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2565 /* allocate local (pointer) tmp */
2566 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2568 /* alloate space on stack to store an array of pointers to the arguments */
2569 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2570 mono_mb_emit_byte (mb, CEE_PREFIX1);
2571 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2572 mono_mb_emit_stloc (mb, params_var);
2575 mono_mb_emit_ldloc (mb, params_var);
2576 mono_mb_emit_stloc (mb, tmp_var);
2578 if (save_this && sig->hasthis) {
2579 mono_mb_emit_ldloc (mb, tmp_var);
2580 mono_mb_emit_ldarg_addr (mb, 0);
2581 mono_mb_emit_byte (mb, CEE_STIND_I);
2582 /* tmp = tmp + sizeof (gpointer) */
2583 if (sig->param_count)
2584 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2588 for (i = 0; i < sig->param_count; i++) {
2589 mono_mb_emit_ldloc (mb, tmp_var);
2590 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2591 mono_mb_emit_byte (mb, CEE_STIND_I);
2592 /* tmp = tmp + sizeof (gpointer) */
2593 if (i < (sig->param_count - 1))
2594 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2601 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2605 GString *res = g_string_new ("");
2608 g_string_append (res, prefix);
2609 g_string_append_c (res, '_');
2612 mono_type_get_desc (res, sig->ret, FALSE);
2615 g_string_append (res, "__this__");
2617 for (i = 0; i < sig->param_count; ++i) {
2618 g_string_append_c (res, '_');
2619 mono_type_get_desc (res, sig->params [i], FALSE);
2622 g_string_free (res, FALSE);
2627 * mono_marshal_get_string_encoding:
2629 * Return the string encoding which should be used for a given parameter.
2631 static MonoMarshalNative
2632 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2634 /* First try the parameter marshal info */
2636 if (spec->native == MONO_NATIVE_LPARRAY) {
2637 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2638 return spec->data.array_data.elem_type;
2641 return spec->native;
2645 return MONO_NATIVE_LPSTR;
2647 /* Then try the method level marshal info */
2648 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2649 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2650 return MONO_NATIVE_LPSTR;
2651 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2652 return MONO_NATIVE_LPWSTR;
2653 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2654 #ifdef PLATFORM_WIN32
2655 return MONO_NATIVE_LPWSTR;
2657 return MONO_NATIVE_LPSTR;
2660 return MONO_NATIVE_LPSTR;
2664 static MonoMarshalConv
2665 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2667 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2670 case MONO_NATIVE_LPWSTR:
2671 return MONO_MARSHAL_CONV_STR_LPWSTR;
2672 case MONO_NATIVE_LPSTR:
2673 return MONO_MARSHAL_CONV_STR_LPSTR;
2674 case MONO_NATIVE_LPTSTR:
2675 return MONO_MARSHAL_CONV_STR_LPTSTR;
2676 case MONO_NATIVE_BSTR:
2677 return MONO_MARSHAL_CONV_STR_BSTR;
2683 static MonoMarshalConv
2684 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2686 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2689 case MONO_NATIVE_LPWSTR:
2690 return MONO_MARSHAL_CONV_SB_LPWSTR;
2692 case MONO_NATIVE_LPSTR:
2693 return MONO_MARSHAL_CONV_SB_LPSTR;
2695 case MONO_NATIVE_LPTSTR:
2696 return MONO_MARSHAL_CONV_SB_LPTSTR;
2703 static MonoMarshalConv
2704 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2706 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2711 case MONO_NATIVE_LPWSTR:
2713 return MONO_MARSHAL_CONV_LPWSTR_STR;
2714 case MONO_NATIVE_LPSTR:
2715 return MONO_MARSHAL_CONV_LPSTR_STR;
2716 case MONO_NATIVE_LPTSTR:
2717 return MONO_MARSHAL_CONV_LPTSTR_STR;
2718 case MONO_NATIVE_BSTR:
2719 return MONO_MARSHAL_CONV_BSTR_STR;
2725 static MonoMarshalConv
2726 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2728 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2733 case MONO_NATIVE_LPWSTR:
2735 * mono_string_builder_to_utf16 does not allocate a
2736 * new buffer, so no need to free it.
2739 return MONO_MARSHAL_CONV_LPWSTR_SB;
2740 case MONO_NATIVE_LPSTR:
2741 return MONO_MARSHAL_CONV_LPSTR_SB;
2743 case MONO_NATIVE_LPTSTR:
2744 return MONO_MARSHAL_CONV_LPTSTR_SB;
2752 * Return whenever a field of a native structure or an array member needs to
2756 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2758 MonoMarshalNative encoding;
2759 MonoMarshalConv conv;
2762 case MONO_TYPE_VALUETYPE:
2763 /* FIXME: Optimize this */
2765 case MONO_TYPE_OBJECT:
2766 case MONO_TYPE_CLASS:
2767 if (t->data.klass == mono_defaults.stringbuilder_class) {
2769 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2773 case MONO_TYPE_STRING:
2774 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2775 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2782 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2785 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2788 mono_marshal_lock ();
2791 g_hash_table_new (hash_func, equal_func);
2792 mono_memory_barrier ();
2795 mono_marshal_unlock ();
2800 static inline MonoMethod*
2801 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2805 mono_marshal_lock ();
2806 res = g_hash_table_lookup (cache, key);
2807 mono_marshal_unlock ();
2812 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2816 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2819 datav = ((MonoMethodWrapper *)method)->method_data;
2823 /* Create the method from the builder and place it in the cache */
2824 static inline MonoMethod*
2825 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2826 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2831 mono_marshal_lock ();
2832 res = g_hash_table_lookup (cache, key);
2833 mono_marshal_unlock ();
2836 newm = mono_mb_create_method (mb, sig, max_stack);
2837 mono_marshal_lock ();
2838 res = g_hash_table_lookup (cache, key);
2841 g_hash_table_insert (cache, key, res);
2842 mono_marshal_method_set_wrapper_data (res, key);
2843 mono_marshal_unlock ();
2845 mono_marshal_unlock ();
2846 mono_free_method (newm);
2854 static inline MonoMethod*
2855 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2857 MonoMethod *res = NULL;
2858 MonoRemotingMethods *wrps;
2860 mono_marshal_lock ();
2861 if (method->klass->image->remoting_invoke_cache)
2862 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2867 switch (wrapper_type) {
2868 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2869 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2870 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2871 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2875 /* it is important to do the unlock after the load from wrps, since in
2876 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2877 * to take the loader lock and some other thread may set the fields.
2879 mono_marshal_unlock ();
2883 /* Create the method from the builder and place it in the cache */
2884 static inline MonoMethod*
2885 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2886 MonoMethodSignature *sig, int max_stack)
2888 MonoMethod **res = NULL;
2889 MonoRemotingMethods *wrps;
2890 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2892 mono_marshal_lock ();
2893 wrps = g_hash_table_lookup (cache, key);
2895 wrps = g_new0 (MonoRemotingMethods, 1);
2896 g_hash_table_insert (cache, key, wrps);
2899 switch (mb->method->wrapper_type) {
2900 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2901 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2902 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2903 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2904 default: g_assert_not_reached (); break;
2906 mono_marshal_unlock ();
2910 newm = mono_mb_create_method (mb, sig, max_stack);
2912 mono_marshal_lock ();
2915 mono_marshal_method_set_wrapper_data (*res, key);
2916 mono_marshal_unlock ();
2918 mono_marshal_unlock ();
2919 mono_free_method (newm);
2927 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2931 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2934 res = mono_method_get_wrapper_data (wrapper, 1);
2941 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2943 MonoMethodSignature *sig;
2944 MonoMethodBuilder *mb;
2950 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2951 !strcmp (method->name, "BeginInvoke"));
2953 sig = signature_no_pinvoke (method);
2955 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2956 (GHashFunc)mono_signature_hash,
2957 (GCompareFunc)mono_metadata_signature_equal);
2958 if ((res = mono_marshal_find_in_cache (cache, sig)))
2961 g_assert (sig->hasthis);
2963 name = mono_signature_to_name (sig, "begin_invoke");
2964 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2967 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2969 mono_mb_emit_ldarg (mb, 0);
2970 mono_mb_emit_ldloc (mb, params_var);
2971 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2972 mono_mb_emit_byte (mb, CEE_RET);
2974 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2980 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2982 MonoDomain *domain = mono_domain_get ();
2983 MonoAsyncResult *ares;
2984 MonoMethod *method = NULL;
2985 MonoMethodSignature *sig;
2986 MonoMethodMessage *msg;
2987 MonoObject *res, *exc;
2988 MonoArray *out_args;
2991 g_assert (delegate);
2993 if (!delegate->method_info) {
2994 g_assert (delegate->method);
2995 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2998 if (!delegate->method_info || !delegate->method_info->method)
2999 g_assert_not_reached ();
3001 klass = delegate->object.vtable->klass;
3003 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3004 g_assert (method != NULL);
3006 sig = signature_no_pinvoke (method);
3008 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3010 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
3012 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
3014 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
3015 mono_raise_exception (mono_get_exception_invalid_operation (
3016 "The IAsyncResult object provided does not match this delegate."));
3020 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
3021 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3022 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
3023 mono_message_init (domain, msg, delegate->method_info, NULL);
3024 msg->call_type = CallType_EndInvoke;
3025 MONO_OBJECT_SETREF (msg, async_result, ares);
3026 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
3028 res = mono_thread_pool_finish (ares, &out_args, &exc);
3032 if (((MonoException*)exc)->stack_trace) {
3033 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3035 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3037 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3040 mono_raise_exception ((MonoException*)exc);
3043 mono_method_return_message_restore (method, params, out_args);
3048 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3050 MonoType *t = mono_type_get_underlying_type (return_type);
3052 if (return_type->byref)
3053 return_type = &mono_defaults.int_class->byval_arg;
3056 case MONO_TYPE_VOID:
3057 g_assert_not_reached ();
3060 case MONO_TYPE_STRING:
3061 case MONO_TYPE_CLASS:
3062 case MONO_TYPE_OBJECT:
3063 case MONO_TYPE_ARRAY:
3064 case MONO_TYPE_SZARRAY:
3068 case MONO_TYPE_BOOLEAN:
3071 case MONO_TYPE_CHAR:
3081 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3082 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3084 case MONO_TYPE_GENERICINST:
3085 if (!mono_type_generic_inst_is_valuetype (return_type))
3088 case MONO_TYPE_VALUETYPE: {
3089 MonoClass *klass = mono_class_from_mono_type (return_type);
3090 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3091 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3095 g_warning ("type 0x%x not handled", return_type->type);
3096 g_assert_not_reached ();
3099 mono_mb_emit_byte (mb, CEE_RET);
3103 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3105 MonoMethodSignature *sig;
3106 MonoMethodBuilder *mb;
3112 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3113 !strcmp (method->name, "EndInvoke"));
3115 sig = signature_no_pinvoke (method);
3117 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
3118 (GHashFunc)mono_signature_hash,
3119 (GCompareFunc)mono_metadata_signature_equal);
3120 if ((res = mono_marshal_find_in_cache (cache, sig)))
3123 g_assert (sig->hasthis);
3125 name = mono_signature_to_name (sig, "end_invoke");
3126 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3129 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3131 mono_mb_emit_ldarg (mb, 0);
3132 mono_mb_emit_ldloc (mb, params_var);
3133 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3135 if (sig->ret->type == MONO_TYPE_VOID) {
3136 mono_mb_emit_byte (mb, CEE_POP);
3137 mono_mb_emit_byte (mb, CEE_RET);
3139 mono_mb_emit_restore_result (mb, sig->ret);
3141 res = mono_mb_create_and_cache (cache, sig,
3142 mb, sig, sig->param_count + 16);
3149 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3151 MonoMethodMessage *msg;
3152 MonoTransparentProxy *this;
3153 MonoObject *res, *exc;
3154 MonoArray *out_args;
3156 this = *((MonoTransparentProxy **)params [0]);
3159 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3161 /* skip the this pointer */
3164 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3167 MonoMethodSignature *sig = mono_method_signature (method);
3168 int count = sig->param_count;
3169 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3171 for (i=0; i<count; i++) {
3172 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3173 if (class->valuetype) {
3174 if (sig->params [i]->byref) {
3175 mparams[i] = *((gpointer *)params [i]);
3177 /* runtime_invoke expects a boxed instance */
3178 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
3179 mparams[i] = mono_nullable_box (params [i], class);
3181 mparams[i] = params [i];
3184 mparams[i] = *((gpointer**)params [i]);
3188 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3191 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3193 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3196 mono_raise_exception ((MonoException *)exc);
3198 mono_method_return_message_restore (method, params, out_args);
3206 * cominterop_get_native_wrapper_adjusted:
3207 * @method: managed COM Interop method
3209 * Returns: the generated method to call with signature matching
3210 * the unmanaged COM Method signature
3213 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3216 MonoMethodBuilder *mb_native;
3217 MonoMarshalSpec **mspecs;
3218 MonoMethodSignature *sig, *sig_native;
3219 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3222 sig = mono_method_signature (method);
3224 // create unmanaged wrapper
3225 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3226 sig_native = cominterop_method_signature (method);
3228 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3229 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3231 mono_method_get_marshal_info (method, mspecs);
3233 // move managed args up one
3234 for (i = sig->param_count; i >= 1; i--)
3235 mspecs[i+1] = mspecs[i];
3237 // first arg is IntPtr for interface
3240 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3241 // move return spec to last param
3242 if (!MONO_TYPE_IS_VOID (sig->ret))
3243 mspecs[sig_native->param_count] = mspecs[0];
3248 for (i = 1; i < sig_native->param_count; i++) {
3249 int mspec_index = i + 1;
3250 if (mspecs[mspec_index] == NULL) {
3251 // default object to VARIANT
3252 if (sig_native->params[i]->type == MONO_TYPE_OBJECT) {
3253 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3254 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
3256 else if (sig_native->params[i]->type == MONO_TYPE_STRING) {
3257 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3258 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
3260 else if (sig_native->params[i]->type == MONO_TYPE_CLASS) {
3261 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3262 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
3267 if (method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG) {
3268 // move return spec to last param
3269 if (!MONO_TYPE_IS_VOID (sig->ret) && mspecs[0] == NULL) {
3270 // default object to VARIANT
3271 if (sig->ret->type == MONO_TYPE_OBJECT) {
3272 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3273 mspecs[0]->native = MONO_NATIVE_STRUCT;
3275 else if (sig->ret->type == MONO_TYPE_STRING) {
3276 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3277 mspecs[0]->native = MONO_NATIVE_BSTR;
3279 else if (sig->ret->type == MONO_TYPE_CLASS) {
3280 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3281 mspecs[0]->native = MONO_NATIVE_INTERFACE;
3286 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, TRUE);
3288 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3290 mono_mb_free (mb_native);
3292 for (i = sig_native->param_count; i >= 0; i--)
3294 mono_metadata_free_marshal_spec (mspecs [i]);
3301 * cominterop_get_native_wrapper:
3302 * @method: managed method
3304 * Returns: the generated method to call
3307 cominterop_get_native_wrapper (MonoMethod *method)
3311 MonoMethodBuilder *mb;
3312 MonoMethodSignature *sig, *csig;
3316 cache = get_cache (&method->klass->image->cominterop_wrapper_cache, mono_aligned_addr_hash, NULL);
3317 if ((res = mono_marshal_find_in_cache (cache, method)))
3320 mono_init_com_types ();
3322 if (!method->klass->vtable)
3323 mono_class_setup_vtable (method->klass);
3325 if (!method->klass->methods)
3326 mono_class_setup_methods (method->klass);
3328 sig = mono_method_signature (method);
3329 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3331 /* if method klass is import, that means method
3332 * is really a com call. let interop system emit it.
3334 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3335 /* FIXME: we have to call actual class .ctor
3336 * instead of just __ComObject .ctor.
3338 if (!strcmp(method->name, ".ctor")) {
3339 static MonoMethod *ctor = NULL;
3342 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3343 mono_mb_emit_ldarg (mb, 0);
3344 mono_mb_emit_managed_call (mb, ctor, NULL);
3345 mono_mb_emit_byte (mb, CEE_RET);
3348 static MonoMethod * ThrowExceptionForHR = NULL;
3349 MonoMethod *adjusted_method;
3353 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3355 // add local variables
3356 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3357 if (!MONO_TYPE_IS_VOID (sig->ret))
3358 retval = mono_mb_add_local (mb, sig->ret);
3360 // get the type for the interface the method is defined on
3361 // and then get the underlying COM interface for that type
3362 mono_mb_emit_ldarg (mb, 0);
3363 mono_mb_emit_ptr (mb, method);
3364 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3365 mono_mb_emit_icon (mb, TRUE);
3366 mono_mb_emit_icall (mb, cominterop_get_interface);
3367 mono_mb_emit_stloc (mb, ptr_this);
3369 // arg 1 is unmanaged this pointer
3370 mono_mb_emit_ldloc (mb, ptr_this);
3373 for (i = 1; i <= sig->param_count; i++)
3374 mono_mb_emit_ldarg (mb, i);
3376 // push managed return value as byref last argument
3377 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3378 mono_mb_emit_ldloc_addr (mb, retval);
3380 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3381 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3383 if (!preserve_sig) {
3384 if (!ThrowExceptionForHR)
3385 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3386 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3388 // load return value managed is expecting
3389 if (!MONO_TYPE_IS_VOID (sig->ret))
3390 mono_mb_emit_ldloc (mb, retval);
3393 mono_mb_emit_byte (mb, CEE_RET);
3398 /* Does this case ever get hit? */
3400 char *msg = g_strdup ("non imported interfaces on \
3401 imported classes is not yet implemented.");
3402 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3404 csig = signature_dup (method->klass->image, sig);
3406 res = mono_mb_create_and_cache (cache, method,
3407 mb, csig, csig->param_count + 16);
3413 * cominterop_get_invoke:
3414 * @method: managed method
3416 * Returns: the generated method that calls the underlying __ComObject
3417 * rather than the proxy object.
3420 cominterop_get_invoke (MonoMethod *method)
3422 MonoMethodSignature *sig;
3423 MonoMethodBuilder *mb;
3426 GHashTable* cache = get_cache (&method->klass->image->cominterop_invoke_cache, mono_aligned_addr_hash, NULL);
3430 if ((res = mono_marshal_find_in_cache (cache, method)))
3433 sig = signature_no_pinvoke (method);
3435 /* we cant remote methods without this pointer */
3439 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3441 /* get real proxy object, which is a ComInteropProxy in this case*/
3442 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3443 mono_mb_emit_ldarg (mb, 0);
3444 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3445 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3447 /* load the RCW from the ComInteropProxy*/
3448 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3451 /* load args and make the call on the RCW */
3452 for (i = 1; i <= sig->param_count; i++)
3453 mono_mb_emit_ldarg (mb, i);
3455 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3456 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3457 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3460 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3461 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3463 mono_mb_emit_op (mb, CEE_CALL, method);
3466 if (!strcmp(method->name, ".ctor")) {
3467 static MonoClass *com_interop_proxy_class = NULL;
3468 static MonoMethod *cache_proxy = NULL;
3470 if (!com_interop_proxy_class)
3471 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3473 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3475 mono_mb_emit_ldarg (mb, 0);
3476 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3477 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3478 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3481 emit_thread_interrupt_checkpoint (mb);
3483 mono_mb_emit_byte (mb, CEE_RET);
3485 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3491 #endif /* DISABLE_COM */
3493 /* Maps a managed object to its unmanaged representation
3494 * i.e. it's COM Callable Wrapper (CCW).
3498 static GHashTable* ccw_hash = NULL;
3500 /* Maps a CCW interface to it's containing CCW.
3501 * Note that a CCW support many interfaces.
3503 * Value: MonoCCWInterface*
3505 static GHashTable* ccw_interface_hash = NULL;
3507 /* Maps the IUnknown value of a RCW to
3508 * it's MonoComInteropProxy*.
3512 static GHashTable* rcw_hash = NULL;
3515 mono_marshal_get_remoting_invoke (MonoMethod *method)
3517 MonoMethodSignature *sig;
3518 MonoMethodBuilder *mb;
3524 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3527 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3528 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
3530 return cominterop_get_invoke(method);
3532 g_assert_not_reached ();
3536 sig = signature_no_pinvoke (method);
3538 /* we cant remote methods without this pointer */
3542 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3545 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3546 mb->method->save_lmf = 1;
3548 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3550 mono_mb_emit_ptr (mb, method);
3551 mono_mb_emit_ldloc (mb, params_var);
3552 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3553 emit_thread_interrupt_checkpoint (mb);
3555 if (sig->ret->type == MONO_TYPE_VOID) {
3556 mono_mb_emit_byte (mb, CEE_POP);
3557 mono_mb_emit_byte (mb, CEE_RET);
3559 mono_mb_emit_restore_result (mb, sig->ret);
3562 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3568 /* mono_get_xdomain_marshal_type()
3569 * Returns the kind of marshalling that a type needs for cross domain calls.
3571 static MonoXDomainMarshalType
3572 mono_get_xdomain_marshal_type (MonoType *t)
3575 case MONO_TYPE_VOID:
3576 g_assert_not_reached ();
3580 case MONO_TYPE_BOOLEAN:
3583 case MONO_TYPE_CHAR:
3590 return MONO_MARSHAL_NONE;
3591 case MONO_TYPE_STRING:
3592 return MONO_MARSHAL_COPY;
3593 case MONO_TYPE_ARRAY:
3594 case MONO_TYPE_SZARRAY: {
3595 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3596 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3597 return MONO_MARSHAL_COPY;
3602 return MONO_MARSHAL_SERIALIZE;
3606 /* mono_marshal_xdomain_copy_value
3607 * Makes a copy of "val" suitable for the current domain.
3610 mono_marshal_xdomain_copy_value (MonoObject *val)
3613 if (val == NULL) return NULL;
3615 domain = mono_domain_get ();
3617 switch (mono_object_class (val)->byval_arg.type) {
3618 case MONO_TYPE_VOID:
3619 g_assert_not_reached ();
3623 case MONO_TYPE_BOOLEAN:
3626 case MONO_TYPE_CHAR:
3632 case MONO_TYPE_R8: {
3633 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3635 case MONO_TYPE_STRING: {
3636 MonoString *str = (MonoString *) val;
3637 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3639 case MONO_TYPE_ARRAY:
3640 case MONO_TYPE_SZARRAY: {
3642 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3643 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3644 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3645 if (mt == MONO_MARSHAL_COPY) {
3646 int i, len = mono_array_length (acopy);
3647 for (i = 0; i < len; i++) {
3648 MonoObject *item = mono_array_get (acopy, gpointer, i);
3649 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3652 return (MonoObject *) acopy;
3656 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3657 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3658 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3659 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3660 newsb->length = oldsb->length;
3661 newsb->max_capacity = (gint32)0x7fffffff;
3662 return (MonoObject *) newsb;
3667 /* mono_marshal_xdomain_copy_out_value()
3668 * Copies the contents of the src instance into the dst instance. src and dst
3669 * must have the same type, and if they are arrays, the same size.
3672 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3674 if (src == NULL || dst == NULL) return;
3676 g_assert (mono_object_class (src) == mono_object_class (dst));
3678 switch (mono_object_class (src)->byval_arg.type) {
3679 case MONO_TYPE_ARRAY:
3680 case MONO_TYPE_SZARRAY: {
3681 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3682 if (mt == MONO_MARSHAL_SERIALIZE) return;
3683 if (mt == MONO_MARSHAL_COPY) {
3684 int i, len = mono_array_length ((MonoArray *)dst);
3685 for (i = 0; i < len; i++) {
3686 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3687 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3690 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3696 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3697 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3698 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3700 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)));
3701 dst_sb->cached_str = NULL;
3702 dst_sb->length = src_sb->length;
3707 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3709 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3710 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3714 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3716 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3719 /* mono_marshal_supports_fast_xdomain()
3720 * Returns TRUE if the method can use the fast xdomain wrapper.
3723 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3725 return !method->klass->contextbound &&
3726 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3730 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3732 MonoDomain *current_domain = mono_domain_get ();
3733 MonoDomain *domain = mono_domain_get_by_id (id);
3735 if (!domain || !mono_domain_set (domain, FALSE))
3736 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3739 mono_thread_push_appdomain_ref (domain);
3741 mono_thread_pop_appdomain_ref ();
3743 return current_domain->domain_id;
3747 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3749 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3752 /* mono_marshal_emit_load_domain_method ()
3753 * Loads into the stack a pointer to the code of the provided method for
3754 * the current domain.
3757 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3759 /* We need a pointer to the method for the running domain (not the domain
3760 * that compiles the method).
3762 mono_mb_emit_ptr (mb, method);
3763 mono_mb_emit_icall (mb, mono_compile_method);
3766 /* mono_marshal_check_domain_image ()
3767 * Returns TRUE if the image is loaded in the specified
3768 * application domain.
3771 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3776 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3780 mono_domain_assemblies_lock (domain);
3781 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3783 if (ass->image == image)
3786 mono_domain_assemblies_unlock (domain);
3791 /* mono_marshal_get_xappdomain_dispatch ()
3792 * Generates a method that dispatches a method call from another domain into
3793 * the current domain.
3796 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3798 MonoMethodSignature *sig, *csig;
3799 MonoMethodBuilder *mb;
3801 int i, j, param_index, copy_locals_base;
3802 MonoClass *ret_class = NULL;
3803 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3804 MonoExceptionClause *main_clause;
3805 MonoMethodHeader *header;
3807 gboolean copy_return;
3809 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3812 sig = mono_method_signature (method);
3813 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3816 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3817 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3818 csig->params [j++] = &byte_array_class->this_arg;
3819 csig->params [j++] = &byte_array_class->this_arg;
3820 for (i = 0; i < sig->param_count; i++) {
3821 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3822 csig->params [j++] = sig->params [i];
3825 csig->ret = sig->ret;
3827 csig->ret = &mono_defaults.void_class->byval_arg;
3829 csig->hasthis = FALSE;
3831 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3832 mb->method->save_lmf = 1;
3836 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3837 if (complex_count > 0)
3838 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3839 if (sig->ret->type != MONO_TYPE_VOID) {
3840 loc_return = mono_mb_add_local (mb, sig->ret);
3841 ret_class = mono_class_from_mono_type (sig->ret);
3846 mono_loader_lock ();
3847 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3848 mono_loader_unlock ();
3849 main_clause->try_offset = mono_mb_get_label (mb);
3851 /* Clean the call context */
3853 mono_mb_emit_byte (mb, CEE_LDNULL);
3854 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3855 mono_mb_emit_byte (mb, CEE_POP);
3857 /* Deserialize call data */
3859 mono_mb_emit_ldarg (mb, 1);
3860 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3861 mono_mb_emit_byte (mb, CEE_DUP);
3862 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3864 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3865 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3867 if (complex_count > 0)
3868 mono_mb_emit_stloc (mb, loc_array);
3870 mono_mb_emit_byte (mb, CEE_POP);
3872 mono_mb_patch_short_branch (mb, pos);
3874 /* Get the target object */
3876 mono_mb_emit_ldarg (mb, 0);
3877 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3879 /* Load the arguments */
3881 copy_locals_base = mb->locals;
3882 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3884 for (i = 0; i < sig->param_count; i++) {
3885 MonoType *pt = sig->params [i];
3886 MonoClass *pclass = mono_class_from_mono_type (pt);
3887 switch (marshal_types [i]) {
3888 case MONO_MARSHAL_SERIALIZE: {
3889 /* take the value from the serialized array */
3890 mono_mb_emit_ldloc (mb, loc_array);
3891 mono_mb_emit_icon (mb, j++);
3893 if (pclass->valuetype) {
3894 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3895 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3897 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3900 if (pclass->valuetype) {
3901 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3902 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3903 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3905 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3906 if (pclass != mono_defaults.object_class) {
3907 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3913 case MONO_MARSHAL_COPY_OUT: {
3914 /* Keep a local copy of the value since we need to copy it back after the call */
3915 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3916 mono_mb_emit_ldarg (mb, param_index++);
3917 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3918 mono_mb_emit_byte (mb, CEE_DUP);
3919 mono_mb_emit_stloc (mb, copy_local);
3922 case MONO_MARSHAL_COPY: {
3923 mono_mb_emit_ldarg (mb, param_index);
3925 mono_mb_emit_byte (mb, CEE_DUP);
3926 mono_mb_emit_byte (mb, CEE_DUP);
3927 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3928 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3929 mono_mb_emit_byte (mb, CEE_STIND_REF);
3931 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3936 case MONO_MARSHAL_NONE:
3937 mono_mb_emit_ldarg (mb, param_index++);
3942 /* Make the call to the real object */
3944 emit_thread_force_interrupt_checkpoint (mb);
3946 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3948 if (sig->ret->type != MONO_TYPE_VOID)
3949 mono_mb_emit_stloc (mb, loc_return);
3951 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3955 for (i = 0; i < sig->param_count; i++) {
3956 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3957 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3958 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3959 mono_mb_emit_ldarg (mb, param_index);
3960 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3965 /* Serialize the return values */
3967 if (complex_out_count > 0) {
3968 /* Reset parameters in the array that don't need to be serialized back */
3970 for (i = 0; i < sig->param_count; i++) {
3971 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3972 if (!sig->params [i]->byref) {
3973 mono_mb_emit_ldloc (mb, loc_array);
3974 mono_mb_emit_icon (mb, j);
3975 mono_mb_emit_byte (mb, CEE_LDNULL);
3976 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3981 /* Add the return value to the array */
3983 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3984 mono_mb_emit_ldloc (mb, loc_array);
3985 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3986 mono_mb_emit_ldloc (mb, loc_return);
3987 if (ret_class->valuetype) {
3988 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3990 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3995 mono_mb_emit_ldarg (mb, 1);
3996 mono_mb_emit_ldloc (mb, loc_array);
3997 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3998 mono_mb_emit_byte (mb, CEE_STIND_REF);
3999 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4000 mono_mb_emit_ldarg (mb, 1);
4001 mono_mb_emit_ldloc (mb, loc_return);
4002 if (ret_class->valuetype) {
4003 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4005 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4006 mono_mb_emit_byte (mb, CEE_STIND_REF);
4008 mono_mb_emit_ldarg (mb, 1);
4009 mono_mb_emit_byte (mb, CEE_LDNULL);
4010 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4011 mono_mb_emit_byte (mb, CEE_STIND_REF);
4014 mono_mb_emit_ldarg (mb, 2);
4015 mono_mb_emit_byte (mb, CEE_LDNULL);
4016 mono_mb_emit_byte (mb, CEE_STIND_REF);
4017 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
4019 /* Main exception catch */
4020 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4021 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
4022 main_clause->data.catch_class = mono_defaults.object_class;
4025 main_clause->handler_offset = mono_mb_get_label (mb);
4026 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
4027 mono_mb_emit_stloc (mb, loc_serialized_exc);
4028 mono_mb_emit_ldarg (mb, 2);
4029 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4030 mono_mb_emit_byte (mb, CEE_STIND_REF);
4031 mono_mb_emit_branch (mb, CEE_LEAVE);
4032 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
4035 mono_mb_patch_branch (mb, pos_leave);
4038 mono_mb_emit_ldloc (mb, loc_return);
4040 mono_mb_emit_byte (mb, CEE_RET);
4042 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
4045 header = ((MonoMethodNormal *)res)->header;
4046 header->num_clauses = 1;
4047 header->clauses = main_clause;
4052 /* mono_marshal_get_xappdomain_invoke ()
4053 * Generates a fast remoting wrapper for cross app domain calls.
4056 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
4058 MonoMethodSignature *sig;
4059 MonoMethodBuilder *mb;
4061 int i, j, complex_count, complex_out_count, copy_locals_base;
4063 MonoClass *ret_class = NULL;
4064 MonoMethod *xdomain_method;
4065 int ret_marshal_type = MONO_MARSHAL_NONE;
4066 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
4067 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
4068 int pos, pos_dispatch, pos_noex;
4069 gboolean copy_return = FALSE;
4073 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
4076 /* we cant remote methods without this pointer */
4077 if (!mono_method_signature (method)->hasthis)
4080 if (!mono_marshal_supports_fast_xdomain (method))
4081 return mono_marshal_get_remoting_invoke (method);
4083 mono_remoting_marshal_init ();
4085 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
4088 sig = signature_no_pinvoke (method);
4090 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
4091 mb->method->save_lmf = 1;
4093 /* Count the number of parameters that need to be serialized */
4095 marshal_types = alloca (sizeof (int) * sig->param_count);
4096 complex_count = complex_out_count = 0;
4097 for (i = 0; i < sig->param_count; i++) {
4098 MonoType *ptype = sig->params[i];
4099 int mt = mono_get_xdomain_marshal_type (ptype);
4101 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4102 * the copy will be made by reusing the original object instance
4104 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4105 mt = MONO_MARSHAL_COPY_OUT;
4106 else if (mt == MONO_MARSHAL_SERIALIZE) {
4108 if (ptype->byref) complex_out_count++;
4110 marshal_types [i] = mt;
4113 if (sig->ret->type != MONO_TYPE_VOID) {
4114 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4115 ret_class = mono_class_from_mono_type (sig->ret);
4116 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4121 if (complex_count > 0)
4122 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4123 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4124 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4126 loc_return = mono_mb_add_local (mb, sig->ret);
4127 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4128 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4129 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4130 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4132 /* Save thread domain data */
4134 mono_mb_emit_icall (mb, mono_context_get);
4135 mono_mb_emit_byte (mb, CEE_DUP);
4136 mono_mb_emit_stloc (mb, loc_context);
4138 /* If the thread is not running in the default context, it needs to go
4139 * through the whole remoting sink, since the context is going to change
4141 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4142 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4144 /* Another case in which the fast path can't be used: when the target domain
4145 * has a different image for the same assembly.
4148 /* Get the target domain id */
4150 mono_mb_emit_ldarg (mb, 0);
4151 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4152 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4153 mono_mb_emit_byte (mb, CEE_DUP);
4154 mono_mb_emit_stloc (mb, loc_real_proxy);
4156 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4157 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4158 mono_mb_emit_stloc (mb, loc_domainid);
4160 /* Check if the target domain has the same image for the required assembly */
4162 mono_mb_emit_ldloc (mb, loc_domainid);
4163 mono_mb_emit_ptr (mb, method->klass->image);
4164 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4165 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4167 /* Use the whole remoting sink to dispatch this message */
4169 mono_mb_patch_short_branch (mb, pos);
4171 mono_mb_emit_ldarg (mb, 0);
4172 for (i = 0; i < sig->param_count; i++)
4173 mono_mb_emit_ldarg (mb, i + 1);
4175 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4176 mono_mb_emit_byte (mb, CEE_RET);
4177 mono_mb_patch_short_branch (mb, pos_dispatch);
4179 /* Create the array that will hold the parameters to be serialized */
4181 if (complex_count > 0) {
4182 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 */
4183 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4186 for (i = 0; i < sig->param_count; i++) {
4188 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4189 pclass = mono_class_from_mono_type (sig->params[i]);
4190 mono_mb_emit_byte (mb, CEE_DUP);
4191 mono_mb_emit_icon (mb, j);
4192 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4193 if (sig->params[i]->byref) {
4194 if (pclass->valuetype)
4195 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4197 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4199 if (pclass->valuetype)
4200 mono_mb_emit_op (mb, CEE_BOX, pclass);
4201 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4204 mono_mb_emit_stloc (mb, loc_array);
4206 /* Serialize parameters */
4208 mono_mb_emit_ldloc (mb, loc_array);
4209 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4210 mono_mb_emit_stloc (mb, loc_serialized_data);
4212 mono_mb_emit_byte (mb, CEE_LDNULL);
4213 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4214 mono_mb_emit_stloc (mb, loc_serialized_data);
4219 mono_mb_emit_ldloc (mb, loc_domainid);
4220 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4221 mono_marshal_emit_switch_domain (mb);
4222 mono_mb_emit_stloc (mb, loc_old_domainid);
4224 /* Load the arguments */
4226 mono_mb_emit_ldloc (mb, loc_real_proxy);
4227 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4228 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4230 copy_locals_base = mb->locals;
4231 for (i = 0; i < sig->param_count; i++) {
4232 switch (marshal_types [i]) {
4233 case MONO_MARSHAL_SERIALIZE:
4235 case MONO_MARSHAL_COPY: {
4236 mono_mb_emit_ldarg (mb, i+1);
4237 if (sig->params [i]->byref) {
4238 /* make a local copy of the byref parameter. The real parameter
4239 * will be updated after the xdomain call
4241 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4242 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4243 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4244 mono_mb_emit_stloc (mb, copy_local);
4245 mono_mb_emit_ldloc_addr (mb, copy_local);
4249 case MONO_MARSHAL_COPY_OUT:
4250 case MONO_MARSHAL_NONE:
4251 mono_mb_emit_ldarg (mb, i+1);
4256 /* Make the call to the invoke wrapper in the target domain */
4258 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4259 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4260 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4263 mono_mb_emit_stloc (mb, loc_return);
4267 mono_mb_emit_ldloc (mb, loc_old_domainid);
4268 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4269 mono_marshal_emit_switch_domain (mb);
4270 mono_mb_emit_byte (mb, CEE_POP);
4272 /* Restore thread domain data */
4274 mono_mb_emit_ldloc (mb, loc_context);
4275 mono_mb_emit_icall (mb, mono_context_set);
4277 /* if (loc_serialized_exc != null) ... */
4279 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4280 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4282 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4283 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4284 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4285 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4286 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4287 mono_mb_emit_byte (mb, CEE_THROW);
4288 mono_mb_patch_short_branch (mb, pos_noex);
4290 /* copy back non-serialized output parameters */
4293 for (i = 0; i < sig->param_count; i++) {
4294 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4295 mono_mb_emit_ldarg (mb, i + 1);
4296 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4297 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4298 mono_mb_emit_byte (mb, CEE_STIND_REF);
4301 /* Deserialize out parameters */
4303 if (complex_out_count > 0) {
4304 mono_mb_emit_ldloc (mb, loc_serialized_data);
4305 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4306 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4307 mono_mb_emit_stloc (mb, loc_array);
4309 /* Copy back output parameters and return type */
4312 for (i = 0; i < sig->param_count; i++) {
4313 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4314 if (sig->params[i]->byref) {
4315 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4316 mono_mb_emit_ldarg (mb, i + 1);
4317 mono_mb_emit_ldloc (mb, loc_array);
4318 mono_mb_emit_icon (mb, j);
4319 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4320 if (pclass->valuetype) {
4321 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4322 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4323 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4325 if (pclass != mono_defaults.object_class)
4326 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4327 mono_mb_emit_byte (mb, CEE_STIND_REF);
4333 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4334 mono_mb_emit_ldloc (mb, loc_array);
4335 mono_mb_emit_icon (mb, complex_count);
4336 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4337 if (ret_class->valuetype) {
4338 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4339 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4342 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4343 mono_mb_emit_ldloc (mb, loc_serialized_data);
4344 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4345 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4346 if (ret_class->valuetype) {
4347 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4348 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4349 } else if (ret_class != mono_defaults.object_class) {
4350 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4353 mono_mb_emit_ldloc (mb, loc_serialized_data);
4354 mono_mb_emit_byte (mb, CEE_DUP);
4355 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4356 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4358 mono_mb_patch_short_branch (mb, pos);
4359 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4360 mono_mb_emit_byte (mb, CEE_POP);
4364 mono_mb_emit_ldloc (mb, loc_return);
4365 if (ret_marshal_type == MONO_MARSHAL_COPY)
4366 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4369 mono_mb_emit_byte (mb, CEE_RET);
4371 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4378 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4380 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
4381 return mono_marshal_get_xappdomain_invoke (method);
4382 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
4384 return cominterop_get_invoke (method);
4386 g_assert_not_reached ();
4389 return mono_marshal_get_remoting_invoke (method);
4393 G_GNUC_UNUSED static gpointer
4394 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4396 if (rp->target_domain_id != -1)
4397 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4399 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4403 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4405 MonoMethodSignature *sig;
4406 MonoMethodBuilder *mb;
4407 MonoMethod *res, *native;
4408 int i, pos, pos_rem;
4412 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4415 /* we cant remote methods without this pointer */
4416 g_assert (mono_method_signature (method)->hasthis);
4418 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4421 sig = signature_no_pinvoke (method);
4423 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4425 for (i = 0; i <= sig->param_count; i++)
4426 mono_mb_emit_ldarg (mb, i);
4428 mono_mb_emit_ldarg (mb, 0);
4429 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4431 if (mono_marshal_supports_fast_xdomain (method)) {
4432 mono_mb_emit_ldarg (mb, 0);
4433 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4435 /* wrapper for cross app domain calls */
4436 native = mono_marshal_get_xappdomain_invoke (method);
4437 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4438 mono_mb_emit_byte (mb, CEE_RET);
4440 mono_mb_patch_branch (mb, pos_rem);
4442 /* wrapper for normal remote calls */
4443 native = mono_marshal_get_remoting_invoke (method);
4444 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4445 mono_mb_emit_byte (mb, CEE_RET);
4448 mono_mb_patch_branch (mb, pos);
4449 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4450 mono_mb_emit_byte (mb, CEE_RET);
4452 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4460 MonoMethodSignature *sig;
4462 } SignatureMethodPair;
4465 signature_method_pair_hash (gconstpointer data)
4467 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4469 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4473 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4475 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4479 free_signature_method_pair (SignatureMethodPair *pair)
4485 * the returned method invokes all methods in a multicast delegate.
4488 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4490 MonoMethodSignature *sig, *static_sig;
4492 MonoMethodBuilder *mb;
4493 MonoMethod *res, *newm;
4495 SignatureMethodPair key;
4496 SignatureMethodPair *new_key;
4497 int local_prev, local_target;
4500 MonoMethod *target_method = NULL;
4501 MonoClass *target_class = NULL;
4502 gboolean callvirt = FALSE;
4505 * If the delegate target is null, and the target method is not static, a virtual
4506 * call is made to that method with the first delegate argument as this. This is
4507 * a non-documented .NET feature.
4509 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4511 target_method = del->method;
4512 if (target_method->is_inflated) {
4513 MonoType *target_type;
4515 g_assert (method->signature->hasthis);
4516 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4517 mono_method_get_context (method));
4518 target_class = mono_class_from_mono_type (target_type);
4520 target_class = del->method->klass;
4524 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4525 !strcmp (method->name, "Invoke"));
4527 sig = signature_no_pinvoke (method);
4530 /* We need to cache the signature+method pair */
4531 mono_marshal_lock ();
4532 if (!method->klass->image->delegate_abstract_invoke_cache)
4533 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);
4534 cache = method->klass->image->delegate_abstract_invoke_cache;
4536 key.method = target_method;
4537 res = g_hash_table_lookup (cache, &key);
4538 mono_marshal_unlock ();
4542 cache = get_cache (&method->klass->image->delegate_invoke_cache,
4543 (GHashFunc)mono_signature_hash,
4544 (GCompareFunc)mono_metadata_signature_equal);
4545 if ((res = mono_marshal_find_in_cache (cache, sig)))
4549 static_sig = signature_dup (method->klass->image, sig);
4550 static_sig->hasthis = 0;
4552 name = mono_signature_to_name (sig, "invoke");
4553 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
4556 /* allocate local 0 (object) */
4557 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4558 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4560 g_assert (sig->hasthis);
4564 * prev.Invoke( args .. );
4565 * return this.<target>( args .. );
4568 /* this wrapper can be used in unmanaged-managed transitions */
4569 emit_thread_interrupt_checkpoint (mb);
4571 /* get this->prev */
4572 mono_mb_emit_ldarg (mb, 0);
4573 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4574 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4575 mono_mb_emit_stloc (mb, local_prev);
4576 mono_mb_emit_ldloc (mb, local_prev);
4578 /* if prev != null */
4579 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4583 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4584 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4586 mono_mb_emit_ldloc (mb, local_prev);
4587 for (i = 0; i < sig->param_count; i++)
4588 mono_mb_emit_ldarg (mb, i + 1);
4589 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4590 if (sig->ret->type != MONO_TYPE_VOID)
4591 mono_mb_emit_byte (mb, CEE_POP);
4593 /* continued or prev == null */
4594 mono_mb_patch_branch (mb, pos0);
4596 /* get this->target */
4597 mono_mb_emit_ldarg (mb, 0);
4598 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4599 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4600 mono_mb_emit_stloc (mb, local_target);
4602 /* if target != null */
4603 mono_mb_emit_ldloc (mb, local_target);
4604 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4606 /* then call this->method_ptr nonstatic */
4609 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4611 mono_mb_emit_ldloc (mb, local_target);
4612 for (i = 0; i < sig->param_count; ++i)
4613 mono_mb_emit_ldarg (mb, i + 1);
4614 mono_mb_emit_ldarg (mb, 0);
4615 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4616 mono_mb_emit_byte (mb, CEE_LDIND_I );
4617 mono_mb_emit_op (mb, CEE_CALLI, sig);
4619 mono_mb_emit_byte (mb, CEE_RET);
4622 /* else [target == null] call this->method_ptr static */
4623 mono_mb_patch_branch (mb, pos0);
4626 mono_mb_emit_ldarg (mb, 1);
4627 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4628 for (i = 1; i < sig->param_count; ++i)
4629 mono_mb_emit_ldarg (mb, i + 1);
4630 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4632 for (i = 0; i < sig->param_count; ++i)
4633 mono_mb_emit_ldarg (mb, i + 1);
4634 mono_mb_emit_ldarg (mb, 0);
4635 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4636 mono_mb_emit_byte (mb, CEE_LDIND_I );
4637 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4640 mono_mb_emit_byte (mb, CEE_RET);
4643 // From mono_mb_create_and_cache
4644 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4645 newm->skip_visibility = 1;
4646 /*We perform double checked locking, so must fence before publishing*/
4647 mono_memory_barrier ();
4648 mono_marshal_lock ();
4649 res = g_hash_table_lookup (cache, &key);
4652 new_key = g_new0 (SignatureMethodPair, 1);
4654 new_key->method = target_method;
4655 g_hash_table_insert (cache, new_key, res);
4656 mono_marshal_method_set_wrapper_data (res, new_key);
4657 mono_marshal_unlock ();
4659 mono_marshal_unlock ();
4660 mono_free_method (newm);
4663 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4664 res->skip_visibility = 1;
4672 * signature_dup_add_this:
4674 * Make a copy of @sig, adding an explicit this argument.
4676 static MonoMethodSignature*
4677 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4679 MonoMethodSignature *res;
4682 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4683 memcpy (res, sig, sizeof (MonoMethodSignature));
4684 res->param_count = sig->param_count + 1;
4685 res->hasthis = FALSE;
4686 for (i = sig->param_count - 1; i >= 0; i --)
4687 res->params [i + 1] = sig->params [i];
4688 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4694 MonoMethodSignature *ctor_sig;
4695 MonoMethodSignature *sig;
4698 /* protected by the marshal lock, contains CtorSigPair pointers */
4699 static GSList *strsig_list = NULL;
4701 static MonoMethodSignature *
4702 lookup_string_ctor_signature (MonoMethodSignature *sig)
4704 MonoMethodSignature *callsig;
4708 mono_marshal_lock ();
4710 for (item = strsig_list; item; item = item->next) {
4712 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4713 * because it is lock-free.
4715 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4720 mono_marshal_unlock ();
4724 static MonoMethodSignature *
4725 add_string_ctor_signature (MonoMethod *method)
4727 MonoMethodSignature *callsig;
4730 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4731 callsig->ret = &mono_defaults.string_class->byval_arg;
4732 cs = g_new (CtorSigPair, 1);
4734 cs->ctor_sig = mono_method_signature (method);
4736 mono_marshal_lock ();
4737 strsig_list = g_slist_prepend (strsig_list, cs);
4738 mono_marshal_unlock ();
4742 static inline MonoType*
4743 get_basic_type (MonoType *t)
4747 return &mono_defaults.sbyte_class->byval_arg;
4749 return &mono_defaults.int16_class->byval_arg;
4751 return &mono_defaults.int32_class->byval_arg;
4753 return &mono_defaults.int64_class->byval_arg;
4754 case MONO_TYPE_BOOLEAN:
4755 return &mono_defaults.byte_class->byval_arg;
4756 case MONO_TYPE_CHAR:
4757 return &mono_defaults.int16_class->byval_arg;
4759 return &mono_defaults.int_class->byval_arg;
4760 case MONO_TYPE_VALUETYPE:
4761 if (t->data.klass->enumtype)
4762 return mono_type_get_underlying_type (t);
4770 static inline gboolean
4771 runtime_invoke_type_equal (MonoType *t1, MonoType *t2)
4773 if (MONO_TYPE_IS_REFERENCE (t1) && MONO_TYPE_IS_REFERENCE (t2))
4775 else if (t1->byref != t2->byref)
4777 else if (t1->byref && t2->byref)
4779 else if (t1->type == MONO_TYPE_PTR && t2->type == MONO_TYPE_PTR)
4782 t1 = get_basic_type (t1);
4783 t2 = get_basic_type (t2);
4785 return mono_metadata_type_equal (t1, t2);
4790 runtime_invoke_type_hash (MonoType *t1)
4792 if (MONO_TYPE_IS_REFERENCE (t1))
4796 else if (t1->type == MONO_TYPE_PTR)
4799 return mono_metadata_type_hash (get_basic_type (t1));
4803 * runtime_invoke_signature_equal:
4805 * Same as mono_metadata_signature_equal, but consider reference types equal.
4808 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4812 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4815 if (sig1->generic_param_count != sig2->generic_param_count)
4819 * We're just comparing the signatures of two methods here:
4821 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4822 * U and V are equal here.
4824 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4827 for (i = 0; i < sig1->param_count; i++) {
4828 MonoType *p1 = sig1->params[i];
4829 MonoType *p2 = sig2->params[i];
4831 /* if (p1->attrs != p2->attrs)
4834 if (!runtime_invoke_type_equal (p1, p2))
4838 /* Can't share wrappers which return a vtype since it needs to be boxed */
4839 if (MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret))
4846 runtime_invoke_signature_hash (MonoMethodSignature *sig)
4848 guint i, res = sig->ret->type;
4850 for (i = 0; i < sig->param_count; i++)
4851 res = (res << 5) - res + runtime_invoke_type_hash (sig->params[i]);
4857 * generates IL code for the runtime invoke function
4858 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4860 * we also catch exceptions if exc != null
4863 mono_marshal_get_runtime_invoke (MonoMethod *method)
4865 MonoMethodSignature *sig, *csig, *callsig;
4866 MonoExceptionClause *clause;
4867 MonoMethodHeader *header;
4868 MonoMethodBuilder *mb;
4869 GHashTable *cache = NULL;
4870 MonoClass *target_klass;
4871 MonoMethod *res = NULL;
4872 static MonoString *string_dummy = NULL;
4873 static MonoMethodSignature *cctor_signature = NULL;
4874 static MonoMethodSignature *finalize_signature = NULL;
4877 gboolean need_direct_wrapper = FALSE;
4881 if (!cctor_signature) {
4882 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4883 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4885 if (!finalize_signature) {
4886 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4887 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4888 finalize_signature->hasthis = 1;
4891 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4892 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4894 * Array Get/Set/Address methods. The JIT implements them using inline code
4895 * so we need to create an invoke wrapper which calls the method directly.
4897 need_direct_wrapper = TRUE;
4900 if (method->string_ctor) {
4901 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4903 callsig = add_string_ctor_signature (method);
4905 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4907 * Valuetype methods receive a managed pointer as the this argument.
4908 * Create a new signature to reflect this.
4910 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4912 if (method->dynamic)
4913 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4915 callsig = mono_method_signature (method);
4920 * We try to share runtime invoke wrappers between different methods but have to
4921 * be careful about methods whose klass has a type cctor, since putting the wrapper
4922 * into that klass would mean that calling a method of klass A might invoke the
4923 * type initializer of class B, or throw an exception if the type initializer
4924 * was called before and failed. See #349621 for an example.
4925 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4927 if (method->klass->image == mono_defaults.corlib)
4928 target_klass = mono_defaults.object_class;
4930 /* Try to share wrappers for non-corlib methods with simple signatures */
4931 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4932 callsig = cctor_signature;
4933 target_klass = mono_defaults.object_class;
4934 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4935 callsig = finalize_signature;
4936 target_klass = mono_defaults.object_class;
4938 // FIXME: This breaks too many things
4940 if (mono_class_get_cctor (method->klass))
4941 need_direct_wrapper = TRUE;
4945 * Can't put these wrappers into object, since they reference non-corlib
4946 * metadata (callsig).
4948 target_klass = method->klass;
4952 if (need_direct_wrapper) {
4953 cache = get_cache (&target_klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4954 res = mono_marshal_find_in_cache (cache, method);
4956 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4957 (GHashFunc)runtime_invoke_signature_hash,
4958 (GCompareFunc)runtime_invoke_signature_equal);
4960 /* from mono_marshal_find_in_cache */
4961 mono_marshal_lock ();
4962 res = g_hash_table_lookup (cache, callsig);
4963 mono_marshal_unlock ();
4970 /* to make it work with our special string constructors */
4971 if (!string_dummy) {
4972 MONO_GC_REGISTER_ROOT (string_dummy);
4973 string_dummy = mono_string_new_wrapper ("dummy");
4976 sig = mono_method_signature (method);
4978 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4980 csig->ret = &mono_defaults.object_class->byval_arg;
4981 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4982 csig->params [0] = callsig->params [0];
4984 csig->params [0] = &mono_defaults.object_class->byval_arg;
4985 csig->params [1] = &mono_defaults.int_class->byval_arg;
4986 csig->params [2] = &mono_defaults.int_class->byval_arg;
4987 csig->params [3] = &mono_defaults.int_class->byval_arg;
4989 name = mono_signature_to_name (callsig, "runtime_invoke");
4990 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4993 /* allocate local 0 (object) tmp */
4994 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4995 /* allocate local 1 (object) exc */
4996 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4998 /* cond set *exc to null */
4999 mono_mb_emit_byte (mb, CEE_LDARG_2);
5000 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
5001 mono_mb_emit_byte (mb, 3);
5002 mono_mb_emit_byte (mb, CEE_LDARG_2);
5003 mono_mb_emit_byte (mb, CEE_LDNULL);
5004 mono_mb_emit_byte (mb, CEE_STIND_REF);
5006 emit_thread_force_interrupt_checkpoint (mb);
5009 if (method->string_ctor) {
5010 mono_mb_emit_ptr (mb, string_dummy);
5012 mono_mb_emit_ldarg (mb, 0);
5016 for (i = 0; i < sig->param_count; i++) {
5017 MonoType *t = sig->params [i];
5020 mono_mb_emit_ldarg (mb, 1);
5022 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
5023 mono_mb_emit_byte (mb, CEE_ADD);
5027 mono_mb_emit_byte (mb, CEE_LDIND_I);
5031 type = sig->params [i]->type;
5035 case MONO_TYPE_BOOLEAN:
5039 case MONO_TYPE_CHAR:
5048 mono_mb_emit_byte (mb, CEE_LDIND_I);
5049 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5051 case MONO_TYPE_STRING:
5052 case MONO_TYPE_CLASS:
5053 case MONO_TYPE_ARRAY:
5055 case MONO_TYPE_SZARRAY:
5056 case MONO_TYPE_OBJECT:
5057 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5059 case MONO_TYPE_GENERICINST:
5060 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
5061 mono_mb_emit_byte (mb, CEE_LDIND_I);
5066 case MONO_TYPE_VALUETYPE:
5067 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
5068 type = t->data.klass->enum_basetype->type;
5071 mono_mb_emit_byte (mb, CEE_LDIND_I);
5072 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
5073 /* Need to convert a boxed vtype to an mp to a Nullable struct */
5074 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
5075 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5077 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5081 g_assert_not_reached ();
5085 if (need_direct_wrapper) {
5086 mono_mb_emit_op (mb, CEE_CALL, method);
5088 mono_mb_emit_ldarg (mb, 3);
5089 mono_mb_emit_calli (mb, callsig);
5092 if (sig->ret->byref) {
5094 g_assert_not_reached ();
5098 switch (sig->ret->type) {
5099 case MONO_TYPE_VOID:
5100 if (!method->string_ctor)
5101 mono_mb_emit_byte (mb, CEE_LDNULL);
5103 case MONO_TYPE_BOOLEAN:
5104 case MONO_TYPE_CHAR:
5117 case MONO_TYPE_VALUETYPE:
5118 case MONO_TYPE_TYPEDBYREF:
5119 case MONO_TYPE_GENERICINST:
5120 /* box value types */
5121 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
5123 case MONO_TYPE_STRING:
5124 case MONO_TYPE_CLASS:
5125 case MONO_TYPE_ARRAY:
5126 case MONO_TYPE_SZARRAY:
5127 case MONO_TYPE_OBJECT:
5132 g_assert_not_reached ();
5135 mono_mb_emit_stloc (mb, 0);
5137 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5139 mono_loader_lock ();
5140 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
5141 mono_loader_unlock ();
5142 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5143 clause->try_len = mono_mb_get_label (mb);
5146 clause->data.filter_offset = mono_mb_get_label (mb);
5148 mono_mb_emit_byte (mb, CEE_POP);
5149 mono_mb_emit_byte (mb, CEE_LDARG_2);
5150 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5151 mono_mb_emit_byte (mb, CEE_PREFIX1);
5152 mono_mb_emit_byte (mb, CEE_CGT_UN);
5153 mono_mb_emit_byte (mb, CEE_PREFIX1);
5154 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5156 clause->handler_offset = mono_mb_get_label (mb);
5159 /* store exception */
5160 mono_mb_emit_stloc (mb, 1);
5162 mono_mb_emit_byte (mb, CEE_LDARG_2);
5163 mono_mb_emit_ldloc (mb, 1);
5164 mono_mb_emit_byte (mb, CEE_STIND_REF);
5166 mono_mb_emit_byte (mb, CEE_LDNULL);
5167 mono_mb_emit_stloc (mb, 0);
5169 /* Check for the abort exception */
5170 mono_mb_emit_ldloc (mb, 1);
5171 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5172 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5174 /* Delay the abort exception */
5175 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
5177 mono_mb_patch_short_branch (mb, posna);
5178 mono_mb_emit_branch (mb, CEE_LEAVE);
5180 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
5183 mono_mb_patch_branch (mb, pos);
5184 mono_mb_emit_ldloc (mb, 0);
5185 mono_mb_emit_byte (mb, CEE_RET);
5187 if (need_direct_wrapper) {
5188 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
5190 /* taken from mono_mb_create_and_cache */
5191 mono_marshal_lock ();
5192 res = g_hash_table_lookup (cache, callsig);
5193 mono_marshal_unlock ();
5195 /* Somebody may have created it before us */
5198 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
5200 mono_marshal_lock ();
5201 res = g_hash_table_lookup (cache, callsig);
5204 g_hash_table_insert (cache, callsig, res);
5205 /* Can't insert it into wrapper_hash since the key is a signature */
5207 mono_free_method (newm);
5209 mono_marshal_unlock ();
5212 /* end mono_mb_create_and_cache */
5217 header = ((MonoMethodNormal *)res)->header;
5218 header->num_clauses = 1;
5219 header->clauses = clause;
5225 * mono_marshal_get_static_rgctx_invoke:
5228 * Generates a wrapper for calling a generic shared method, either
5229 * static or generic. We need this for virtual generic method lookup
5230 * and ldftn when we do generic code sharing. Instead of producing
5231 * the address of the method we produce the address of a wrapper for
5232 * the method because the wrapper passes the (method) runtime generic
5233 * context argument which calli cannot do.
5236 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
5238 static gboolean inited = FALSE;
5239 static int num_wrappers = 0;
5241 MonoMethodBuilder *mb;
5243 MonoClass *target_klass = method->klass;
5244 MonoMethodSignature *sig = mono_method_signature (method);
5248 MonoImage *image = method->klass->image;
5250 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
5251 if ((res = mono_marshal_find_in_cache (cache, method)))
5255 mono_counters_register ("static rgctx invoke wrappers",
5256 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
5261 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
5262 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
5265 for (i = 0; i < sig->param_count + sig->hasthis; i++)
5266 mono_mb_emit_ldarg (mb, i);
5267 mono_mb_emit_op (mb, CEE_CALL, method);
5268 mono_mb_emit_byte (mb, CEE_RET);
5270 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
5271 sig->param_count + sig->hasthis + 4);
5272 res->skip_visibility = TRUE;
5273 res->flags = method->flags;
5281 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5283 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5284 klass->name_space, klass->name);
5286 mono_mb_emit_exception_marshal_directive (mb, msg);
5290 * mono_marshal_get_ldfld_remote_wrapper:
5291 * @klass: The return type
5293 * This method generates a wrapper for calling mono_load_remote_field_new.
5294 * The return type is ignored for now, as mono_load_remote_field_new () always
5295 * returns an object. In the future, to optimize some codepaths, we might
5296 * call a different function that takes a pointer to a valuetype, instead.
5299 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5301 MonoMethodSignature *sig, *csig;
5302 MonoMethodBuilder *mb;
5304 static MonoMethod* cached = NULL;
5306 mono_marshal_lock ();
5308 mono_marshal_unlock ();
5311 mono_marshal_unlock ();
5313 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5315 mb->method->save_lmf = 1;
5317 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5318 sig->params [0] = &mono_defaults.object_class->byval_arg;
5319 sig->params [1] = &mono_defaults.int_class->byval_arg;
5320 sig->params [2] = &mono_defaults.int_class->byval_arg;
5321 sig->ret = &mono_defaults.object_class->byval_arg;
5323 mono_mb_emit_ldarg (mb, 0);
5324 mono_mb_emit_ldarg (mb, 1);
5325 mono_mb_emit_ldarg (mb, 2);
5327 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5328 csig->params [0] = &mono_defaults.object_class->byval_arg;
5329 csig->params [1] = &mono_defaults.int_class->byval_arg;
5330 csig->params [2] = &mono_defaults.int_class->byval_arg;
5331 csig->ret = &mono_defaults.object_class->byval_arg;
5334 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5335 emit_thread_interrupt_checkpoint (mb);
5337 mono_mb_emit_byte (mb, CEE_RET);
5339 mono_marshal_lock ();
5341 mono_marshal_unlock ();
5344 newm = mono_mb_create_method (mb, sig, 4);
5345 mono_marshal_lock ();
5350 mono_marshal_unlock ();
5352 mono_marshal_unlock ();
5353 mono_free_method (newm);
5362 * mono_marshal_get_ldfld_wrapper:
5363 * @type: the type of the field
5365 * This method generates a function which can be use to load a field with type
5366 * @type from an object. The generated function has the following signature:
5367 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5370 mono_marshal_get_ldfld_wrapper (MonoType *type)
5372 MonoMethodSignature *sig;
5373 MonoMethodBuilder *mb;
5378 int t, pos0, pos1 = 0;
5380 type = mono_type_get_underlying_type (type);
5385 if (type->type == MONO_TYPE_SZARRAY) {
5386 klass = mono_defaults.array_class;
5387 } else if (type->type == MONO_TYPE_VALUETYPE) {
5388 klass = type->data.klass;
5389 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5390 klass = mono_defaults.object_class;
5391 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5392 klass = mono_defaults.int_class;
5393 } else if (t == MONO_TYPE_GENERICINST) {
5394 if (mono_type_generic_inst_is_valuetype (type))
5395 klass = mono_class_from_mono_type (type);
5397 klass = mono_defaults.object_class;
5399 klass = mono_class_from_mono_type (type);
5402 klass = mono_defaults.int_class;
5405 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5406 if ((res = mono_marshal_find_in_cache (cache, klass)))
5409 /* we add the %p pointer value of klass because class names are not unique */
5410 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5411 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5414 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5415 sig->params [0] = &mono_defaults.object_class->byval_arg;
5416 sig->params [1] = &mono_defaults.int_class->byval_arg;
5417 sig->params [2] = &mono_defaults.int_class->byval_arg;
5418 sig->params [3] = &mono_defaults.int_class->byval_arg;
5419 sig->ret = &klass->byval_arg;
5421 mono_mb_emit_ldarg (mb, 0);
5422 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5424 mono_mb_emit_ldarg (mb, 0);
5425 mono_mb_emit_ldarg (mb, 1);
5426 mono_mb_emit_ldarg (mb, 2);
5428 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5431 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5432 csig->params [0] = &mono_defaults.object_class->byval_arg;
5433 csig->params [1] = &mono_defaults.int_class->byval_arg;
5434 csig->params [2] = &mono_defaults.int_class->byval_arg;
5435 csig->ret = &klass->this_arg;
5438 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5439 emit_thread_interrupt_checkpoint (mb);
5442 if (klass->valuetype) {
5443 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5444 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5446 mono_mb_emit_byte (mb, CEE_RET);
5450 mono_mb_patch_branch (mb, pos0);
5452 mono_mb_emit_ldarg (mb, 0);
5453 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5454 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5455 mono_mb_emit_ldarg (mb, 3);
5456 mono_mb_emit_byte (mb, CEE_ADD);
5458 if (klass->valuetype)
5459 mono_mb_patch_branch (mb, pos1);
5464 case MONO_TYPE_BOOLEAN:
5465 case MONO_TYPE_CHAR:
5474 case MONO_TYPE_ARRAY:
5475 case MONO_TYPE_SZARRAY:
5476 case MONO_TYPE_OBJECT:
5477 case MONO_TYPE_CLASS:
5478 case MONO_TYPE_STRING:
5482 case MONO_TYPE_FNPTR:
5483 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5485 case MONO_TYPE_VALUETYPE:
5486 g_assert (!klass->enumtype);
5487 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5489 case MONO_TYPE_GENERICINST:
5490 if (mono_type_generic_inst_is_valuetype (type)) {
5491 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5493 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5497 g_warning ("type %x not implemented", type->type);
5498 g_assert_not_reached ();
5501 mono_mb_emit_byte (mb, CEE_RET);
5503 res = mono_mb_create_and_cache (cache, klass,
5504 mb, sig, sig->param_count + 16);
5511 * mono_marshal_get_ldflda_wrapper:
5512 * @type: the type of the field
5514 * This method generates a function which can be used to load a field address
5515 * from an object. The generated function has the following signature:
5516 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5519 mono_marshal_get_ldflda_wrapper (MonoType *type)
5521 MonoMethodSignature *sig;
5522 MonoMethodBuilder *mb;
5527 int t, pos0, pos1, pos2, pos3;
5529 type = mono_type_get_underlying_type (type);
5533 if (type->type == MONO_TYPE_SZARRAY) {
5534 klass = mono_defaults.array_class;
5535 } else if (type->type == MONO_TYPE_VALUETYPE) {
5536 klass = type->data.klass;
5537 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5538 t == MONO_TYPE_CLASS) {
5539 klass = mono_defaults.object_class;
5540 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5541 klass = mono_defaults.int_class;
5542 } else if (t == MONO_TYPE_GENERICINST) {
5543 if (mono_type_generic_inst_is_valuetype (type))
5544 klass = mono_class_from_mono_type (type);
5546 klass = mono_defaults.object_class;
5548 klass = mono_class_from_mono_type (type);
5551 klass = mono_defaults.int_class;
5554 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5555 if ((res = mono_marshal_find_in_cache (cache, klass)))
5558 /* we add the %p pointer value of klass because class names are not unique */
5559 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5560 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5563 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5564 sig->params [0] = &mono_defaults.object_class->byval_arg;
5565 sig->params [1] = &mono_defaults.int_class->byval_arg;
5566 sig->params [2] = &mono_defaults.int_class->byval_arg;
5567 sig->params [3] = &mono_defaults.int_class->byval_arg;
5568 sig->ret = &mono_defaults.int_class->byval_arg;
5570 /* if typeof (this) != transparent_proxy goto pos0 */
5571 mono_mb_emit_ldarg (mb, 0);
5572 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5574 /* if same_appdomain goto pos1 */
5575 mono_mb_emit_ldarg (mb, 0);
5576 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5578 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5580 /* same app domain */
5581 mono_mb_patch_branch (mb, pos1);
5583 /* if typeof (this) != contextbound goto pos2 */
5584 mono_mb_emit_ldarg (mb, 0);
5585 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5587 /* if this->rp->context == mono_context_get goto pos3 */
5588 mono_mb_emit_ldarg (mb, 0);
5589 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5590 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5591 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5592 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5593 mono_mb_emit_icall (mb, mono_context_get);
5594 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5596 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5598 mono_mb_patch_branch (mb, pos2);
5599 mono_mb_patch_branch (mb, pos3);
5601 /* return the address of the field from this->rp->unwrapped_server */
5602 mono_mb_emit_ldarg (mb, 0);
5603 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5605 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5606 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5607 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5608 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5609 mono_mb_emit_ldarg (mb, 3);
5610 mono_mb_emit_byte (mb, CEE_ADD);
5611 mono_mb_emit_byte (mb, CEE_RET);
5613 /* not a proxy: return the address of the field directly */
5614 mono_mb_patch_branch (mb, pos0);
5616 mono_mb_emit_ldarg (mb, 0);
5617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5618 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5619 mono_mb_emit_ldarg (mb, 3);
5620 mono_mb_emit_byte (mb, CEE_ADD);
5622 mono_mb_emit_byte (mb, CEE_RET);
5624 res = mono_mb_create_and_cache (cache, klass,
5625 mb, sig, sig->param_count + 16);
5632 * mono_marshal_get_stfld_remote_wrapper:
5633 * klass: The type of the field
5635 * This function generates a wrapper for calling mono_store_remote_field_new
5636 * with the appropriate signature.
5637 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5638 * klass argument anymore.
5641 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5643 MonoMethodSignature *sig, *csig;
5644 MonoMethodBuilder *mb;
5646 static MonoMethod *cached = NULL;
5648 mono_marshal_lock ();
5650 mono_marshal_unlock ();
5653 mono_marshal_unlock ();
5655 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5657 mb->method->save_lmf = 1;
5659 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5660 sig->params [0] = &mono_defaults.object_class->byval_arg;
5661 sig->params [1] = &mono_defaults.int_class->byval_arg;
5662 sig->params [2] = &mono_defaults.int_class->byval_arg;
5663 sig->params [3] = &mono_defaults.object_class->byval_arg;
5664 sig->ret = &mono_defaults.void_class->byval_arg;
5666 mono_mb_emit_ldarg (mb, 0);
5667 mono_mb_emit_ldarg (mb, 1);
5668 mono_mb_emit_ldarg (mb, 2);
5669 mono_mb_emit_ldarg (mb, 3);
5671 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5672 csig->params [0] = &mono_defaults.object_class->byval_arg;
5673 csig->params [1] = &mono_defaults.int_class->byval_arg;
5674 csig->params [2] = &mono_defaults.int_class->byval_arg;
5675 csig->params [3] = &mono_defaults.object_class->byval_arg;
5676 csig->ret = &mono_defaults.void_class->byval_arg;
5679 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5680 emit_thread_interrupt_checkpoint (mb);
5682 mono_mb_emit_byte (mb, CEE_RET);
5684 mono_marshal_lock ();
5686 mono_marshal_unlock ();
5689 newm = mono_mb_create_method (mb, sig, 6);
5690 mono_marshal_lock ();
5695 mono_marshal_unlock ();
5697 mono_marshal_unlock ();
5698 mono_free_method (newm);
5707 * mono_marshal_get_stfld_wrapper:
5708 * @type: the type of the field
5710 * This method generates a function which can be use to store a field with type
5711 * @type. The generated function has the following signature:
5712 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5715 mono_marshal_get_stfld_wrapper (MonoType *type)
5717 MonoMethodSignature *sig;
5718 MonoMethodBuilder *mb;
5725 type = mono_type_get_underlying_type (type);
5729 if (type->type == MONO_TYPE_SZARRAY) {
5730 klass = mono_defaults.array_class;
5731 } else if (type->type == MONO_TYPE_VALUETYPE) {
5732 klass = type->data.klass;
5733 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5734 klass = mono_defaults.object_class;
5735 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5736 klass = mono_defaults.int_class;
5737 } else if (t == MONO_TYPE_GENERICINST) {
5738 if (mono_type_generic_inst_is_valuetype (type))
5739 klass = mono_class_from_mono_type (type);
5741 klass = mono_defaults.object_class;
5743 klass = mono_class_from_mono_type (type);
5746 klass = mono_defaults.int_class;
5749 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5750 if ((res = mono_marshal_find_in_cache (cache, klass)))
5753 /* we add the %p pointer value of klass because class names are not unique */
5754 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5755 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5758 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5759 sig->params [0] = &mono_defaults.object_class->byval_arg;
5760 sig->params [1] = &mono_defaults.int_class->byval_arg;
5761 sig->params [2] = &mono_defaults.int_class->byval_arg;
5762 sig->params [3] = &mono_defaults.int_class->byval_arg;
5763 sig->params [4] = &klass->byval_arg;
5764 sig->ret = &mono_defaults.void_class->byval_arg;
5766 mono_mb_emit_ldarg (mb, 0);
5767 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5769 mono_mb_emit_ldarg (mb, 0);
5770 mono_mb_emit_ldarg (mb, 1);
5771 mono_mb_emit_ldarg (mb, 2);
5772 mono_mb_emit_ldarg (mb, 4);
5773 if (klass->valuetype)
5774 mono_mb_emit_op (mb, CEE_BOX, klass);
5776 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5778 mono_mb_emit_byte (mb, CEE_RET);
5780 mono_mb_patch_branch (mb, pos);
5782 mono_mb_emit_ldarg (mb, 0);
5783 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5784 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5785 mono_mb_emit_ldarg (mb, 3);
5786 mono_mb_emit_byte (mb, CEE_ADD);
5787 mono_mb_emit_ldarg (mb, 4);
5792 case MONO_TYPE_BOOLEAN:
5793 case MONO_TYPE_CHAR:
5802 case MONO_TYPE_ARRAY:
5803 case MONO_TYPE_SZARRAY:
5804 case MONO_TYPE_OBJECT:
5805 case MONO_TYPE_CLASS:
5806 case MONO_TYPE_STRING:
5810 case MONO_TYPE_FNPTR:
5811 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5813 case MONO_TYPE_VALUETYPE:
5814 g_assert (!klass->enumtype);
5815 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5817 case MONO_TYPE_GENERICINST:
5818 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5821 g_warning ("type %x not implemented", type->type);
5822 g_assert_not_reached ();
5825 mono_mb_emit_byte (mb, CEE_RET);
5827 res = mono_mb_create_and_cache (cache, klass,
5828 mb, sig, sig->param_count + 16);
5835 * generates IL code for the icall wrapper (the generated method
5836 * calls the unmanaged code in func)
5839 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5841 MonoMethodSignature *csig;
5842 MonoMethodBuilder *mb;
5846 g_assert (sig->pinvoke);
5848 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5850 mb->method->save_lmf = 1;
5852 /* we copy the signature, so that we can modify it */
5855 mono_mb_emit_byte (mb, CEE_LDARG_0);
5857 for (i = 0; i < sig->param_count; i++)
5858 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5860 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5861 if (check_exceptions)
5862 emit_thread_interrupt_checkpoint (mb);
5863 mono_mb_emit_byte (mb, CEE_RET);
5865 csig = signature_dup (mono_defaults.corlib, sig);
5867 if (csig->call_convention == MONO_CALL_VARARG)
5868 csig->call_convention = 0;
5870 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5877 MonoMethodBuilder *mb;
5878 MonoMethodSignature *sig;
5879 MonoMethodPInvoke *piinfo;
5880 int *orig_conv_args; /* Locals containing the original values of byref args */
5882 MonoClass *retobj_class;
5883 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5884 MonoImage *image; /* The image to use for looking up custom marshallers */
5885 } EmitMarshalContext;
5889 * This is invoked to convert arguments from the current types to
5890 * the underlying types expected by the platform routine. If required,
5891 * the methods create a temporary variable with the proper type, and return
5892 * the location for it (either the passed argument, or the newly allocated
5895 MARSHAL_ACTION_CONV_IN,
5898 * This operation is called to push the actual value that was optionally
5899 * converted on the first stage
5901 MARSHAL_ACTION_PUSH,
5904 * Convert byref arguments back or free resources allocated during the
5907 MARSHAL_ACTION_CONV_OUT,
5910 * The result from the unmanaged call is at the top of the stack when
5911 * this action is invoked. The result should be stored in the
5912 * third local variable slot.
5914 MARSHAL_ACTION_CONV_RESULT,
5916 MARSHAL_ACTION_MANAGED_CONV_IN,
5917 MARSHAL_ACTION_MANAGED_CONV_OUT,
5918 MARSHAL_ACTION_MANAGED_CONV_RESULT
5922 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5923 MonoMarshalSpec *spec,
5924 int conv_arg, MonoType **conv_arg_type,
5925 MarshalAction action)
5929 static MonoClass *ICustomMarshaler = NULL;
5930 static MonoMethod *cleanup_native, *cleanup_managed;
5931 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5932 MonoMethod *get_instance;
5933 MonoMethodBuilder *mb = m->mb;
5934 char *exception_msg = NULL;
5938 if (!ICustomMarshaler) {
5939 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5940 g_assert (ICustomMarshaler);
5942 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5943 g_assert (cleanup_native);
5944 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5945 g_assert (cleanup_managed);
5946 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5947 g_assert (marshal_managed_to_native);
5948 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5949 g_assert (marshal_native_to_managed);
5952 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5953 g_assert (mtype != NULL);
5954 mklass = mono_class_from_mono_type (mtype);
5955 g_assert (mklass != NULL);
5957 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5958 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5960 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5962 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5963 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5964 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5965 (get_sig->params [0]->type != MONO_TYPE_STRING))
5966 get_instance = NULL;
5970 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);
5972 /* Throw exception and emit compensation code if neccesary */
5973 if (exception_msg) {
5975 case MARSHAL_ACTION_CONV_IN:
5976 case MARSHAL_ACTION_CONV_RESULT:
5977 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5978 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5979 mono_mb_emit_byte (mb, CEE_POP);
5981 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5982 g_free (exception_msg);
5985 case MARSHAL_ACTION_PUSH:
5986 mono_mb_emit_byte (mb, CEE_LDNULL);
5994 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5995 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5998 case MARSHAL_ACTION_CONV_IN:
6000 case MONO_TYPE_CLASS:
6001 case MONO_TYPE_OBJECT:
6002 case MONO_TYPE_STRING:
6003 case MONO_TYPE_ARRAY:
6004 case MONO_TYPE_SZARRAY:
6005 case MONO_TYPE_VALUETYPE:
6009 g_warning ("custom marshalling of type %x is currently not supported", t->type);
6010 g_assert_not_reached ();
6014 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6016 mono_mb_emit_byte (mb, CEE_LDNULL);
6017 mono_mb_emit_stloc (mb, conv_arg);
6019 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
6022 /* Minic MS.NET behavior */
6023 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
6026 /* Check for null */
6027 mono_mb_emit_ldarg (mb, argnum);
6029 mono_mb_emit_byte (mb, CEE_LDIND_I);
6030 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6032 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6034 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6036 mono_mb_emit_ldarg (mb, argnum);
6038 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6040 if (t->type == MONO_TYPE_VALUETYPE) {
6042 * Since we can't determine the type of the argument, we
6043 * will assume the unmanaged function takes a pointer.
6045 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6047 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
6050 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6051 mono_mb_emit_stloc (mb, conv_arg);
6053 mono_mb_patch_branch (mb, pos2);
6056 case MARSHAL_ACTION_CONV_OUT:
6057 /* Check for null */
6058 mono_mb_emit_ldloc (mb, conv_arg);
6059 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6062 mono_mb_emit_ldarg (mb, argnum);
6064 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6066 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6068 mono_mb_emit_ldloc (mb, conv_arg);
6069 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6070 mono_mb_emit_byte (mb, CEE_STIND_REF);
6072 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6074 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6076 mono_mb_emit_ldloc (mb, conv_arg);
6077 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6079 /* We have nowhere to store the result */
6080 mono_mb_emit_byte (mb, CEE_POP);
6083 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6085 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6087 mono_mb_emit_ldloc (mb, conv_arg);
6089 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6091 mono_mb_patch_branch (mb, pos2);
6094 case MARSHAL_ACTION_PUSH:
6096 mono_mb_emit_ldloc_addr (mb, conv_arg);
6098 mono_mb_emit_ldloc (mb, conv_arg);
6101 case MARSHAL_ACTION_CONV_RESULT:
6102 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6104 mono_mb_emit_stloc (mb, 3);
6106 mono_mb_emit_ldloc (mb, 3);
6107 mono_mb_emit_stloc (mb, loc1);
6109 /* Check for null */
6110 mono_mb_emit_ldloc (mb, 3);
6111 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6113 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6115 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6116 mono_mb_emit_byte (mb, CEE_DUP);
6118 mono_mb_emit_ldloc (mb, 3);
6119 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6120 mono_mb_emit_stloc (mb, 3);
6122 mono_mb_emit_ldloc (mb, loc1);
6123 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6125 mono_mb_patch_branch (mb, pos2);
6128 case MARSHAL_ACTION_MANAGED_CONV_IN:
6129 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6131 mono_mb_emit_byte (mb, CEE_LDNULL);
6132 mono_mb_emit_stloc (mb, conv_arg);
6134 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6137 /* Check for null */
6138 mono_mb_emit_ldarg (mb, argnum);
6140 mono_mb_emit_byte (mb, CEE_LDIND_I);
6141 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6143 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6144 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6146 mono_mb_emit_ldarg (mb, argnum);
6148 mono_mb_emit_byte (mb, CEE_LDIND_I);
6150 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6151 mono_mb_emit_stloc (mb, conv_arg);
6153 mono_mb_patch_branch (mb, pos2);
6156 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6157 g_assert (!t->byref);
6159 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6161 mono_mb_emit_stloc (mb, 3);
6163 mono_mb_emit_ldloc (mb, 3);
6164 mono_mb_emit_stloc (mb, loc1);
6166 /* Check for null */
6167 mono_mb_emit_ldloc (mb, 3);
6168 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6170 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6171 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6172 mono_mb_emit_byte (mb, CEE_DUP);
6174 mono_mb_emit_ldloc (mb, 3);
6175 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6176 mono_mb_emit_stloc (mb, 3);
6178 mono_mb_emit_ldloc (mb, loc1);
6179 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6181 mono_mb_patch_branch (mb, pos2);
6184 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6186 /* Check for null */
6187 mono_mb_emit_ldloc (mb, conv_arg);
6188 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6191 mono_mb_emit_ldarg (mb, argnum);
6193 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6195 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6197 mono_mb_emit_ldloc (mb, conv_arg);
6198 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6199 mono_mb_emit_byte (mb, CEE_STIND_I);
6202 /* Call CleanUpManagedData */
6203 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6205 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6207 mono_mb_emit_ldloc (mb, conv_arg);
6208 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6210 mono_mb_patch_branch (mb, pos2);
6214 g_assert_not_reached ();
6221 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6222 MonoMarshalSpec *spec,
6223 int conv_arg, MonoType **conv_arg_type,
6224 MarshalAction action)
6226 MonoMethodBuilder *mb = m->mb;
6229 case MARSHAL_ACTION_CONV_IN: {
6230 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6232 g_assert (t->type == MONO_TYPE_OBJECT);
6233 g_assert (!t->byref);
6235 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6236 mono_mb_emit_ldarg (mb, argnum);
6237 mono_mb_emit_icon (mb, encoding);
6238 mono_mb_emit_icon (mb, t->attrs);
6239 mono_mb_emit_icall (mb, mono_marshal_asany);
6240 mono_mb_emit_stloc (mb, conv_arg);
6244 case MARSHAL_ACTION_PUSH:
6245 mono_mb_emit_ldloc (mb, conv_arg);
6248 case MARSHAL_ACTION_CONV_OUT: {
6249 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6251 mono_mb_emit_ldarg (mb, argnum);
6252 mono_mb_emit_ldloc (mb, conv_arg);
6253 mono_mb_emit_icon (mb, encoding);
6254 mono_mb_emit_icon (mb, t->attrs);
6255 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6260 g_assert_not_reached ();
6267 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6268 MonoMarshalSpec *spec,
6269 int conv_arg, MonoType **conv_arg_type,
6270 MarshalAction action)
6272 MonoMethodBuilder *mb = m->mb;
6276 klass = t->data.klass;
6279 case MARSHAL_ACTION_CONV_IN:
6280 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6281 klass->blittable || klass->enumtype)
6284 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6286 /* store the address of the source into local variable 0 */
6288 mono_mb_emit_ldarg (mb, argnum);
6290 mono_mb_emit_ldarg_addr (mb, argnum);
6292 mono_mb_emit_stloc (mb, 0);
6294 /* allocate space for the native struct and
6295 * store the address into local variable 1 (dest) */
6296 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6297 mono_mb_emit_byte (mb, CEE_PREFIX1);
6298 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6299 mono_mb_emit_stloc (mb, conv_arg);
6302 mono_mb_emit_ldloc (mb, 0);
6303 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6306 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6308 mono_mb_emit_ldloc (mb, conv_arg);
6309 mono_mb_emit_stloc (mb, 1);
6311 /* emit valuetype conversion code */
6312 emit_struct_conv (mb, klass, FALSE);
6316 mono_mb_patch_branch (mb, pos);
6319 case MARSHAL_ACTION_PUSH:
6320 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6322 g_assert (!t->byref);
6324 /* Have to change the signature since the vtype is passed byref */
6325 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6327 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6328 klass->blittable || klass->enumtype)
6329 mono_mb_emit_ldarg_addr (mb, argnum);
6331 mono_mb_emit_ldloc (mb, conv_arg);
6335 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6336 klass->blittable || klass->enumtype) {
6337 mono_mb_emit_ldarg (mb, argnum);
6340 mono_mb_emit_ldloc (mb, conv_arg);
6342 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6343 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6347 case MARSHAL_ACTION_CONV_OUT:
6348 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6349 klass->blittable || klass->enumtype)
6353 /* dst = argument */
6354 mono_mb_emit_ldarg (mb, argnum);
6355 mono_mb_emit_stloc (mb, 1);
6357 mono_mb_emit_ldloc (mb, 1);
6358 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6360 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6361 /* src = tmp_locals [i] */
6362 mono_mb_emit_ldloc (mb, conv_arg);
6363 mono_mb_emit_stloc (mb, 0);
6365 /* emit valuetype conversion code */
6366 emit_struct_conv (mb, klass, TRUE);
6370 emit_struct_free (mb, klass, conv_arg);
6373 mono_mb_patch_branch (mb, pos);
6376 case MARSHAL_ACTION_CONV_RESULT:
6377 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6379 mono_mb_emit_stloc (mb, 3);
6382 /* load pointer to returned value type */
6383 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6384 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6385 /* store the address of the source into local variable 0 */
6386 mono_mb_emit_stloc (mb, 0);
6388 mono_mb_emit_ldloc_addr (mb, 3);
6389 mono_mb_emit_stloc (mb, 1);
6391 /* emit valuetype conversion code */
6392 emit_struct_conv (mb, klass, TRUE);
6395 case MARSHAL_ACTION_MANAGED_CONV_IN:
6396 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6397 klass->blittable || klass->enumtype) {
6402 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6404 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6408 mono_mb_emit_ldarg (mb, argnum);
6410 mono_mb_emit_ldarg_addr (mb, argnum);
6411 mono_mb_emit_stloc (mb, 0);
6414 mono_mb_emit_ldloc (mb, 0);
6415 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6418 mono_mb_emit_ldloc_addr (mb, conv_arg);
6419 mono_mb_emit_stloc (mb, 1);
6421 /* emit valuetype conversion code */
6422 emit_struct_conv (mb, klass, TRUE);
6425 mono_mb_patch_branch (mb, pos);
6428 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6429 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6430 klass->blittable || klass->enumtype) {
6434 /* Check for null */
6435 mono_mb_emit_ldarg (mb, argnum);
6436 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6439 mono_mb_emit_ldloc_addr (mb, conv_arg);
6440 mono_mb_emit_stloc (mb, 0);
6443 mono_mb_emit_ldarg (mb, argnum);
6444 mono_mb_emit_stloc (mb, 1);
6446 /* emit valuetype conversion code */
6447 emit_struct_conv (mb, klass, FALSE);
6449 mono_mb_patch_branch (mb, pos2);
6452 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6453 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6454 klass->blittable || klass->enumtype) {
6455 mono_mb_emit_stloc (mb, 3);
6460 /* load pointer to returned value type */
6461 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6462 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6464 /* store the address of the source into local variable 0 */
6465 mono_mb_emit_stloc (mb, 0);
6466 /* allocate space for the native struct and
6467 * store the address into dst_ptr */
6468 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6469 m->retobj_class = klass;
6470 g_assert (m->retobj_var);
6471 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6472 mono_mb_emit_byte (mb, CEE_CONV_I);
6473 mono_mb_emit_icall (mb, mono_marshal_alloc);
6474 mono_mb_emit_stloc (mb, 1);
6475 mono_mb_emit_ldloc (mb, 1);
6476 mono_mb_emit_stloc (mb, m->retobj_var);
6478 /* emit valuetype conversion code */
6479 emit_struct_conv (mb, klass, FALSE);
6483 g_assert_not_reached ();
6490 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6491 MonoMarshalSpec *spec,
6492 int conv_arg, MonoType **conv_arg_type,
6493 MarshalAction action)
6495 MonoMethodBuilder *mb = m->mb;
6496 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6497 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6501 case MARSHAL_ACTION_CONV_IN:
6502 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6503 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6506 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6509 mono_mb_emit_ldarg (mb, argnum);
6510 mono_mb_emit_byte (mb, CEE_LDIND_I);
6512 mono_mb_emit_ldarg (mb, argnum);
6516 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6517 MonoException *exc = mono_get_exception_not_implemented (msg);
6520 mono_raise_exception (exc);
6523 mono_mb_emit_icall (mb, conv_to_icall (conv));
6525 mono_mb_emit_stloc (mb, conv_arg);
6528 case MARSHAL_ACTION_CONV_OUT:
6529 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6531 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6532 mono_mb_emit_exception_marshal_directive (mb, msg);
6536 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6537 mono_mb_emit_ldarg (mb, argnum);
6538 mono_mb_emit_ldloc (mb, conv_arg);
6539 mono_mb_emit_icall (mb, conv_to_icall (conv));
6540 mono_mb_emit_byte (mb, CEE_STIND_REF);
6543 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6544 mono_mb_emit_ldloc (mb, conv_arg);
6545 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6546 mono_mb_emit_icall (mb, mono_free_bstr);
6548 mono_mb_emit_icall (mb, mono_marshal_free);
6552 case MARSHAL_ACTION_PUSH:
6554 mono_mb_emit_ldloc_addr (mb, conv_arg);
6556 mono_mb_emit_ldloc (mb, conv_arg);
6559 case MARSHAL_ACTION_CONV_RESULT:
6560 mono_mb_emit_stloc (mb, 0);
6562 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6564 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6565 mono_mb_emit_exception_marshal_directive (mb, msg);
6569 mono_mb_emit_ldloc (mb, 0);
6570 mono_mb_emit_icall (mb, conv_to_icall (conv));
6571 mono_mb_emit_stloc (mb, 3);
6573 /* free the string */
6574 mono_mb_emit_ldloc (mb, 0);
6575 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6576 mono_mb_emit_icall (mb, mono_free_bstr);
6578 mono_mb_emit_icall (mb, mono_marshal_free);
6581 case MARSHAL_ACTION_MANAGED_CONV_IN:
6582 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6584 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6586 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6588 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6589 mono_mb_emit_exception_marshal_directive (mb, msg);
6593 mono_mb_emit_ldarg (mb, argnum);
6595 mono_mb_emit_byte (mb, CEE_LDIND_I);
6596 mono_mb_emit_icall (mb, conv_to_icall (conv));
6597 mono_mb_emit_stloc (mb, conv_arg);
6600 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6603 mono_mb_emit_ldarg (mb, argnum);
6604 mono_mb_emit_ldloc (mb, conv_arg);
6605 mono_mb_emit_icall (mb, conv_to_icall (conv));
6606 mono_mb_emit_byte (mb, CEE_STIND_I);
6611 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6612 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6613 /* We need to make a copy so the caller is able to free it */
6614 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6616 mono_mb_emit_icall (mb, conv_to_icall (conv));
6617 mono_mb_emit_stloc (mb, 3);
6621 g_assert_not_reached ();
6628 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6629 MonoMarshalSpec *spec, int conv_arg,
6630 MonoType **conv_arg_type, MarshalAction action)
6632 MonoMethodBuilder *mb = m->mb;
6635 case MARSHAL_ACTION_CONV_IN: {
6636 MonoType *intptr_type;
6637 int dar_release_slot, pos;
6639 intptr_type = &mono_defaults.int_class->byval_arg;
6640 conv_arg = mono_mb_add_local (mb, intptr_type);
6641 *conv_arg_type = intptr_type;
6643 if (!sh_dangerous_add_ref)
6644 init_safe_handle ();
6646 mono_mb_emit_ldarg (mb, argnum);
6647 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6648 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6650 mono_mb_patch_branch (mb, pos);
6653 * My tests in show that ref SafeHandles are not really
6654 * passed as ref objects. Instead a NULL is passed as the
6657 mono_mb_emit_icon (mb, 0);
6658 mono_mb_emit_stloc (mb, conv_arg);
6662 /* Create local to hold the ref parameter to DangerousAddRef */
6663 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6665 /* set release = false; */
6666 mono_mb_emit_icon (mb, 0);
6667 mono_mb_emit_stloc (mb, dar_release_slot);
6669 /* safehandle.DangerousAddRef (ref release) */
6670 mono_mb_emit_ldarg (mb, argnum);
6671 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6672 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6674 /* Pull the handle field from SafeHandle */
6675 mono_mb_emit_ldarg (mb, argnum);
6676 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6677 mono_mb_emit_byte (mb, CEE_LDIND_I);
6678 mono_mb_emit_stloc (mb, conv_arg);
6683 case MARSHAL_ACTION_PUSH:
6685 mono_mb_emit_ldloc_addr (mb, conv_arg);
6687 mono_mb_emit_ldloc (mb, conv_arg);
6690 case MARSHAL_ACTION_CONV_OUT: {
6691 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6692 int dar_release_slot = conv_arg + 1;
6695 if (!sh_dangerous_release)
6696 init_safe_handle ();
6702 * My tests indicate that ref SafeHandles parameters are not actually
6703 * passed by ref, but instead a new Handle is created regardless of
6704 * whether a change happens in the unmanaged side.
6706 * Also, the Handle is created before calling into unmanaged code,
6707 * but we do not support that mechanism (getting to the original
6708 * handle) and it makes no difference where we create this
6710 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6712 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6715 /* refval = new SafeHandleDerived ()*/
6716 mono_mb_emit_ldarg (mb, argnum);
6717 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6718 mono_mb_emit_byte (mb, CEE_STIND_REF);
6720 /* refval.handle = returned_handle */
6721 mono_mb_emit_ldarg (mb, argnum);
6722 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6723 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6724 mono_mb_emit_ldloc (mb, conv_arg);
6725 mono_mb_emit_byte (mb, CEE_STIND_I);
6727 mono_mb_emit_ldloc (mb, dar_release_slot);
6728 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6729 mono_mb_emit_ldarg (mb, argnum);
6730 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6731 mono_mb_patch_branch (mb, label_next);
6736 case MARSHAL_ACTION_CONV_RESULT: {
6737 MonoMethod *ctor = NULL;
6738 int intptr_handle_slot;
6740 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6741 mono_mb_emit_byte (mb, CEE_POP);
6742 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6746 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6748 mono_mb_emit_byte (mb, CEE_POP);
6749 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6752 /* Store the IntPtr results into a local */
6753 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6754 mono_mb_emit_stloc (mb, intptr_handle_slot);
6756 /* Create return value */
6757 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6758 mono_mb_emit_stloc (mb, 3);
6760 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6761 mono_mb_emit_ldloc (mb, 3);
6762 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6763 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6764 mono_mb_emit_byte (mb, CEE_STIND_I);
6768 case MARSHAL_ACTION_MANAGED_CONV_IN:
6769 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6772 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6773 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6776 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6777 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6780 printf ("Unhandled case for MarshalAction: %d\n", action);
6787 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6788 MonoMarshalSpec *spec, int conv_arg,
6789 MonoType **conv_arg_type, MarshalAction action)
6791 MonoMethodBuilder *mb = m->mb;
6794 case MARSHAL_ACTION_CONV_IN: {
6795 MonoType *intptr_type;
6797 intptr_type = &mono_defaults.int_class->byval_arg;
6798 conv_arg = mono_mb_add_local (mb, intptr_type);
6799 *conv_arg_type = intptr_type;
6802 mono_mb_emit_exception_marshal_directive (mb,
6803 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6806 mono_mb_emit_ldarg_addr (mb, argnum);
6807 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6808 mono_mb_emit_byte (mb, CEE_ADD);
6809 mono_mb_emit_byte (mb, CEE_LDIND_I);
6810 mono_mb_emit_stloc (mb, conv_arg);
6814 case MARSHAL_ACTION_PUSH:
6815 mono_mb_emit_ldloc (mb, conv_arg);
6818 case MARSHAL_ACTION_CONV_OUT: {
6819 /* no resource release required */
6823 case MARSHAL_ACTION_CONV_RESULT: {
6824 mono_mb_emit_exception_marshal_directive (mb,
6825 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6829 case MARSHAL_ACTION_MANAGED_CONV_IN:
6830 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6833 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6834 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6837 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6838 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6841 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6848 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6849 MonoMarshalSpec *spec,
6850 int conv_arg, MonoType **conv_arg_type,
6851 MarshalAction action)
6853 MonoMethodBuilder *mb = m->mb;
6854 MonoClass *klass = t->data.klass;
6857 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6858 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6862 case MARSHAL_ACTION_CONV_IN:
6863 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6864 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6866 m->orig_conv_args [argnum] = 0;
6868 if (klass->delegate) {
6870 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6871 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6872 mono_mb_emit_exception_marshal_directive (mb, msg);
6874 mono_mb_emit_byte (mb, CEE_LDNULL);
6875 mono_mb_emit_stloc (mb, conv_arg);
6877 mono_mb_emit_ldarg (mb, argnum);
6878 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6879 mono_mb_emit_stloc (mb, conv_arg);
6881 } else if (klass == mono_defaults.stringbuilder_class) {
6882 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6883 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6885 g_assert (!t->byref);
6886 mono_mb_emit_ldarg (mb, argnum);
6889 mono_mb_emit_icall (mb, conv_to_icall (conv));
6891 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6892 MonoException *exc = mono_get_exception_not_implemented (msg);
6895 mono_raise_exception (exc);
6898 mono_mb_emit_stloc (mb, conv_arg);
6899 } else if (klass->blittable) {
6900 mono_mb_emit_byte (mb, CEE_LDNULL);
6901 mono_mb_emit_stloc (mb, conv_arg);
6903 mono_mb_emit_ldarg (mb, argnum);
6904 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6906 mono_mb_emit_ldarg (mb, argnum);
6907 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6908 mono_mb_emit_stloc (mb, conv_arg);
6910 mono_mb_patch_branch (mb, pos);
6913 mono_mb_emit_byte (mb, CEE_LDNULL);
6914 mono_mb_emit_stloc (mb, conv_arg);
6917 /* we dont need any conversions for out parameters */
6918 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6921 mono_mb_emit_ldarg (mb, argnum);
6922 mono_mb_emit_byte (mb, CEE_LDIND_I);
6925 mono_mb_emit_ldarg (mb, argnum);
6926 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6927 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6930 /* store the address of the source into local variable 0 */
6931 mono_mb_emit_stloc (mb, 0);
6932 mono_mb_emit_ldloc (mb, 0);
6933 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6935 /* allocate space for the native struct and store the address */
6936 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6937 mono_mb_emit_byte (mb, CEE_PREFIX1);
6938 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6939 mono_mb_emit_stloc (mb, conv_arg);
6942 /* Need to store the original buffer so we can free it later */
6943 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6944 mono_mb_emit_ldloc (mb, conv_arg);
6945 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6948 /* set the src_ptr */
6949 mono_mb_emit_ldloc (mb, 0);
6950 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6951 mono_mb_emit_stloc (mb, 0);
6954 mono_mb_emit_ldloc (mb, conv_arg);
6955 mono_mb_emit_stloc (mb, 1);
6957 /* emit valuetype conversion code */
6958 emit_struct_conv (mb, klass, FALSE);
6960 mono_mb_patch_branch (mb, pos);
6964 case MARSHAL_ACTION_CONV_OUT:
6965 if (klass == mono_defaults.stringbuilder_class) {
6967 MonoMarshalNative encoding;
6968 MonoMarshalConv conv;
6970 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6971 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6973 g_assert (!t->byref);
6974 g_assert (encoding != -1);
6976 mono_mb_emit_ldarg (mb, argnum);
6977 mono_mb_emit_ldloc (mb, conv_arg);
6979 mono_mb_emit_icall (mb, conv_to_icall (conv));
6982 mono_mb_emit_ldloc (mb, conv_arg);
6983 mono_mb_emit_icall (mb, mono_marshal_free);
6988 if (klass->delegate) {
6990 mono_mb_emit_ldarg (mb, argnum);
6991 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6992 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6993 mono_mb_emit_ldloc (mb, conv_arg);
6994 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6995 mono_mb_emit_byte (mb, CEE_STIND_REF);
7000 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7001 /* allocate a new object */
7002 mono_mb_emit_ldarg (mb, argnum);
7003 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7004 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
7005 mono_mb_emit_byte (mb, CEE_STIND_REF);
7008 /* dst = *argument */
7009 mono_mb_emit_ldarg (mb, argnum);
7012 mono_mb_emit_byte (mb, CEE_LDIND_I);
7014 mono_mb_emit_stloc (mb, 1);
7016 mono_mb_emit_ldloc (mb, 1);
7017 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7019 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7020 mono_mb_emit_ldloc (mb, 1);
7021 mono_mb_emit_icon (mb, sizeof (MonoObject));
7022 mono_mb_emit_byte (mb, CEE_ADD);
7023 mono_mb_emit_stloc (mb, 1);
7025 /* src = tmp_locals [i] */
7026 mono_mb_emit_ldloc (mb, conv_arg);
7027 mono_mb_emit_stloc (mb, 0);
7029 /* emit valuetype conversion code */
7030 emit_struct_conv (mb, t->data.klass, TRUE);
7032 /* Free the structure returned by the native code */
7033 emit_struct_free (mb, klass, conv_arg);
7035 if (m->orig_conv_args [argnum]) {
7037 * If the native function changed the pointer, then free
7038 * the original structure plus the new pointer.
7040 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
7041 mono_mb_emit_ldloc (mb, conv_arg);
7042 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
7044 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
7045 g_assert (m->orig_conv_args [argnum]);
7047 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
7050 mono_mb_emit_ldloc (mb, conv_arg);
7051 mono_mb_emit_icall (mb, g_free);
7053 mono_mb_patch_branch (mb, pos2);
7057 /* Free the original structure passed to native code */
7058 emit_struct_free (mb, klass, conv_arg);
7060 mono_mb_patch_branch (mb, pos);
7063 case MARSHAL_ACTION_PUSH:
7065 mono_mb_emit_ldloc_addr (mb, conv_arg);
7067 mono_mb_emit_ldloc (mb, conv_arg);
7070 case MARSHAL_ACTION_CONV_RESULT:
7071 if (klass->delegate) {
7072 g_assert (!t->byref);
7073 mono_mb_emit_stloc (mb, 0);
7074 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7075 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7076 mono_mb_emit_ldloc (mb, 0);
7077 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7078 mono_mb_emit_stloc (mb, 3);
7081 mono_mb_emit_stloc (mb, 0);
7083 /* Make a copy since emit_conv modifies local 0 */
7084 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7085 mono_mb_emit_ldloc (mb, 0);
7086 mono_mb_emit_stloc (mb, loc);
7088 mono_mb_emit_byte (mb, CEE_LDNULL);
7089 mono_mb_emit_stloc (mb, 3);
7091 mono_mb_emit_ldloc (mb, 0);
7092 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7094 /* allocate result object */
7096 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7097 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7098 mono_mb_emit_stloc (mb, 3);
7102 mono_mb_emit_ldloc (mb, 3);
7103 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7104 mono_mb_emit_stloc (mb, 1);
7106 /* emit conversion code */
7107 emit_struct_conv (mb, klass, TRUE);
7109 emit_struct_free (mb, klass, loc);
7111 /* Free the pointer allocated by unmanaged code */
7112 mono_mb_emit_ldloc (mb, loc);
7113 mono_mb_emit_icall (mb, g_free);
7114 mono_mb_patch_branch (mb, pos);
7118 case MARSHAL_ACTION_MANAGED_CONV_IN:
7119 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7121 if (klass->delegate) {
7122 g_assert (!t->byref);
7123 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7124 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7125 mono_mb_emit_ldarg (mb, argnum);
7126 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7127 mono_mb_emit_stloc (mb, conv_arg);
7131 if (klass == mono_defaults.stringbuilder_class) {
7132 MonoMarshalNative encoding;
7134 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7137 g_assert (encoding == MONO_NATIVE_LPSTR);
7139 g_assert (!t->byref);
7140 g_assert (encoding != -1);
7142 mono_mb_emit_ldarg (mb, argnum);
7143 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
7144 mono_mb_emit_stloc (mb, conv_arg);
7148 /* The class can not have an automatic layout */
7149 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7150 mono_mb_emit_auto_layout_exception (mb, klass);
7154 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
7155 mono_mb_emit_byte (mb, CEE_LDNULL);
7156 mono_mb_emit_stloc (mb, conv_arg);
7161 mono_mb_emit_ldarg (mb, argnum);
7165 /* Check for NULL and raise an exception */
7166 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7168 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
7170 mono_mb_patch_branch (mb, pos2);
7171 mono_mb_emit_ldarg (mb, argnum);
7172 mono_mb_emit_byte (mb, CEE_LDIND_I);
7175 mono_mb_emit_stloc (mb, 0);
7177 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7178 mono_mb_emit_stloc (mb, conv_arg);
7180 mono_mb_emit_ldloc (mb, 0);
7181 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7183 /* Create and set dst */
7184 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7185 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7186 mono_mb_emit_stloc (mb, conv_arg);
7187 mono_mb_emit_ldloc (mb, conv_arg);
7188 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7189 mono_mb_emit_stloc (mb, 1);
7191 /* emit valuetype conversion code */
7192 emit_struct_conv (mb, klass, TRUE);
7194 mono_mb_patch_branch (mb, pos);
7197 case MARSHAL_ACTION_MANAGED_CONV_OUT:
7199 /* Check for null */
7200 mono_mb_emit_ldloc (mb, conv_arg);
7201 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7202 mono_mb_emit_ldarg (mb, argnum);
7203 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7204 mono_mb_emit_byte (mb, CEE_STIND_REF);
7205 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7207 mono_mb_patch_branch (mb, pos);
7210 mono_mb_emit_ldloc (mb, conv_arg);
7211 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7212 mono_mb_emit_stloc (mb, 0);
7214 /* Allocate and set dest */
7215 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7216 mono_mb_emit_byte (mb, CEE_CONV_I);
7217 mono_mb_emit_icall (mb, mono_marshal_alloc);
7218 mono_mb_emit_stloc (mb, 1);
7220 /* Update argument pointer */
7221 mono_mb_emit_ldarg (mb, argnum);
7222 mono_mb_emit_ldloc (mb, 1);
7223 mono_mb_emit_byte (mb, CEE_STIND_I);
7225 /* emit valuetype conversion code */
7226 emit_struct_conv (mb, klass, FALSE);
7228 mono_mb_patch_branch (mb, pos2);
7230 /* byval [Out] marshalling */
7232 /* FIXME: Handle null */
7235 mono_mb_emit_ldloc (mb, conv_arg);
7236 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7237 mono_mb_emit_stloc (mb, 0);
7240 mono_mb_emit_ldarg (mb, argnum);
7241 mono_mb_emit_stloc (mb, 1);
7243 /* emit valuetype conversion code */
7244 emit_struct_conv (mb, klass, FALSE);
7248 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7249 if (klass->delegate) {
7250 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7251 mono_mb_emit_stloc (mb, 3);
7255 /* The class can not have an automatic layout */
7256 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7257 mono_mb_emit_auto_layout_exception (mb, klass);
7261 mono_mb_emit_stloc (mb, 0);
7262 /* Check for null */
7263 mono_mb_emit_ldloc (mb, 0);
7264 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7265 mono_mb_emit_byte (mb, CEE_LDNULL);
7266 mono_mb_emit_stloc (mb, 3);
7267 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7269 mono_mb_patch_branch (mb, pos);
7272 mono_mb_emit_ldloc (mb, 0);
7273 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7274 mono_mb_emit_stloc (mb, 0);
7276 /* Allocate and set dest */
7277 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7278 mono_mb_emit_byte (mb, CEE_CONV_I);
7279 mono_mb_emit_icall (mb, mono_marshal_alloc);
7280 mono_mb_emit_byte (mb, CEE_DUP);
7281 mono_mb_emit_stloc (mb, 1);
7282 mono_mb_emit_stloc (mb, 3);
7284 emit_struct_conv (mb, klass, FALSE);
7286 mono_mb_patch_branch (mb, pos2);
7290 g_assert_not_reached ();
7299 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7300 MonoMarshalSpec *spec,
7301 int conv_arg, MonoType **conv_arg_type,
7302 MarshalAction action)
7304 MonoMethodBuilder *mb = m->mb;
7305 MonoClass *klass = t->data.klass;
7306 static MonoMethod* get_object_for_iunknown = NULL;
7307 static MonoMethod* get_iunknown_for_object_internal = NULL;
7308 static MonoMethod* get_com_interface_for_object_internal = NULL;
7309 static MonoMethod* get_idispatch_for_object_internal = NULL;
7310 static MonoMethod* marshal_release = NULL;
7311 static MonoMethod* AddRef = NULL;
7312 if (!get_object_for_iunknown)
7313 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7314 if (!get_iunknown_for_object_internal)
7315 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7316 if (!get_idispatch_for_object_internal)
7317 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7318 if (!get_com_interface_for_object_internal)
7319 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7320 if (!marshal_release)
7321 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7323 /* COM types are initialized lazily */
7324 mono_init_com_types ();
7327 case MARSHAL_ACTION_CONV_IN: {
7328 guint32 pos_null = 0;
7330 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7331 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7333 mono_mb_emit_ptr (mb, NULL);
7334 mono_mb_emit_stloc (mb, conv_arg);
7336 /* we dont need any conversions for out parameters */
7337 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7340 mono_mb_emit_ldarg (mb, argnum);
7342 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7343 /* if null just break, conv arg was already inited to 0 */
7344 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7346 mono_mb_emit_ldarg (mb, argnum);
7348 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7350 if (klass && klass != mono_defaults.object_class) {
7351 mono_mb_emit_ptr (mb, t);
7352 mono_mb_emit_icall (mb, type_from_handle);
7353 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7355 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7356 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7357 else if (spec->native == MONO_NATIVE_IDISPATCH)
7358 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7359 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7360 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7362 g_assert_not_reached ();
7363 mono_mb_emit_stloc (mb, conv_arg);
7364 mono_mb_patch_short_branch (mb, pos_null);
7368 case MARSHAL_ACTION_CONV_OUT: {
7369 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7371 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7372 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7374 mono_mb_emit_ldarg (mb, argnum);
7375 mono_mb_emit_byte (mb, CEE_LDNULL);
7376 mono_mb_emit_byte (mb, CEE_STIND_REF);
7378 mono_mb_emit_ldloc (mb, conv_arg);
7379 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7381 mono_mb_emit_ldloc (mb, conv_arg);
7382 mono_mb_emit_icon (mb, TRUE);
7383 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7384 mono_mb_emit_stloc (mb, ccw_obj);
7385 mono_mb_emit_ldloc (mb, ccw_obj);
7386 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7388 mono_mb_emit_ldarg (mb, argnum);
7389 mono_mb_emit_ldloc (mb, conv_arg);
7390 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7392 if (klass && klass != mono_defaults.object_class)
7393 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7394 mono_mb_emit_byte (mb, CEE_STIND_REF);
7396 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7398 /* is already managed object */
7399 mono_mb_patch_short_branch (mb, pos_ccw);
7400 mono_mb_emit_ldarg (mb, argnum);
7401 mono_mb_emit_ldloc (mb, ccw_obj);
7403 if (klass && klass != mono_defaults.object_class)
7404 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7405 mono_mb_emit_byte (mb, CEE_STIND_REF);
7407 mono_mb_patch_short_branch (mb, pos_end);
7409 /* need to call Release to follow COM rules of ownership */
7410 mono_mb_emit_ldloc (mb, conv_arg);
7411 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7412 mono_mb_emit_byte (mb, CEE_POP);
7415 mono_mb_patch_short_branch (mb, pos_null);
7419 case MARSHAL_ACTION_PUSH:
7421 mono_mb_emit_ldloc_addr (mb, conv_arg);
7423 mono_mb_emit_ldloc (mb, conv_arg);
7426 case MARSHAL_ACTION_CONV_RESULT: {
7427 int ccw_obj, ret_ptr;
7428 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7429 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7430 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7432 /* store return value */
7433 mono_mb_emit_stloc (mb, ret_ptr);
7435 mono_mb_emit_ldloc (mb, ret_ptr);
7436 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7438 mono_mb_emit_ldloc (mb, ret_ptr);
7439 mono_mb_emit_icon (mb, TRUE);
7440 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7441 mono_mb_emit_stloc (mb, ccw_obj);
7442 mono_mb_emit_ldloc (mb, ccw_obj);
7443 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7445 mono_mb_emit_ldloc (mb, ret_ptr);
7446 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7448 if (klass && klass != mono_defaults.object_class)
7449 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7450 mono_mb_emit_stloc (mb, 3);
7452 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7454 /* is already managed object */
7455 mono_mb_patch_short_branch (mb, pos_ccw);
7456 mono_mb_emit_ldloc (mb, ccw_obj);
7458 if (klass && klass != mono_defaults.object_class)
7459 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7460 mono_mb_emit_stloc (mb, 3);
7462 mono_mb_patch_short_branch (mb, pos_end);
7464 /* need to call Release to follow COM rules of ownership */
7465 mono_mb_emit_ldloc (mb, ret_ptr);
7466 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7467 mono_mb_emit_byte (mb, CEE_POP);
7470 mono_mb_patch_short_branch (mb, pos_null);
7474 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7476 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7477 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7479 klass = mono_class_from_mono_type (t);
7480 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7481 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7483 mono_mb_emit_byte (mb, CEE_LDNULL);
7484 mono_mb_emit_stloc (mb, conv_arg);
7485 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7488 mono_mb_emit_ldarg (mb, argnum);
7490 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7491 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7493 mono_mb_emit_ldarg (mb, argnum);
7495 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7496 mono_mb_emit_icon (mb, TRUE);
7497 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7498 mono_mb_emit_stloc (mb, ccw_obj);
7499 mono_mb_emit_ldloc (mb, ccw_obj);
7500 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7503 mono_mb_emit_ldarg (mb, argnum);
7505 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7506 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7508 if (klass && klass != mono_defaults.object_class)
7509 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7510 mono_mb_emit_stloc (mb, conv_arg);
7511 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7513 /* is already managed object */
7514 mono_mb_patch_short_branch (mb, pos_ccw);
7515 mono_mb_emit_ldloc (mb, ccw_obj);
7516 if (klass && klass != mono_defaults.object_class)
7517 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7518 mono_mb_emit_stloc (mb, conv_arg);
7520 mono_mb_patch_short_branch (mb, pos_end);
7522 mono_mb_patch_short_branch (mb, pos_null);
7526 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7527 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7528 guint32 pos_null = 0;
7531 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7533 mono_mb_emit_ldloc (mb, conv_arg);
7534 /* if null just break, conv arg was already inited to 0 */
7535 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7537 /* to store later */
7538 mono_mb_emit_ldarg (mb, argnum);
7539 mono_mb_emit_ldloc (mb, conv_arg);
7540 if (klass && klass != mono_defaults.object_class) {
7541 mono_mb_emit_ptr (mb, t);
7542 mono_mb_emit_icall (mb, type_from_handle);
7543 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7545 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7546 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7547 else if (spec->native == MONO_NATIVE_IDISPATCH)
7548 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7549 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7550 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7552 g_assert_not_reached ();
7553 mono_mb_emit_byte (mb, CEE_STIND_I);
7555 mono_mb_emit_ldarg (mb, argnum);
7556 mono_mb_emit_byte (mb, CEE_LDIND_I);
7557 mono_mb_emit_managed_call (mb, AddRef, NULL);
7558 mono_mb_emit_byte (mb, CEE_POP);
7560 mono_mb_patch_short_branch (mb, pos_null);
7565 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7566 guint32 pos_null = 0;
7568 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7571 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7573 /* store return value */
7574 mono_mb_emit_stloc (mb, ccw_obj);
7576 mono_mb_emit_ldloc (mb, ccw_obj);
7578 /* if null just break, conv arg was already inited to 0 */
7579 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7581 /* to store later */
7582 mono_mb_emit_ldloc (mb, ccw_obj);
7583 if (klass && klass != mono_defaults.object_class) {
7584 mono_mb_emit_ptr (mb, t);
7585 mono_mb_emit_icall (mb, type_from_handle);
7586 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7588 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7589 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7590 else if (spec->native == MONO_NATIVE_IDISPATCH)
7591 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7592 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7593 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7595 g_assert_not_reached ();
7596 mono_mb_emit_stloc (mb, 3);
7597 mono_mb_emit_ldloc (mb, 3);
7599 mono_mb_emit_managed_call (mb, AddRef, NULL);
7600 mono_mb_emit_byte (mb, CEE_POP);
7602 mono_mb_patch_short_branch (mb, pos_null);
7607 g_assert_not_reached ();
7613 #endif /* DISABLE_COM */
7616 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7617 MonoMarshalSpec *spec,
7618 int conv_arg, MonoType **conv_arg_type,
7619 MarshalAction action)
7621 MonoMethodBuilder *mb = m->mb;
7622 static MonoMethod *get_object_for_native_variant = NULL;
7623 static MonoMethod *get_native_variant_for_object = NULL;
7625 mono_init_com_types ();
7627 if (!get_object_for_native_variant)
7628 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7629 g_assert (get_object_for_native_variant);
7631 if (!get_native_variant_for_object)
7632 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7633 g_assert (get_native_variant_for_object);
7636 case MARSHAL_ACTION_CONV_IN: {
7637 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7640 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7642 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7644 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7647 mono_mb_emit_ldarg (mb, argnum);
7649 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7650 mono_mb_emit_ldloc_addr (mb, conv_arg);
7651 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7655 case MARSHAL_ACTION_CONV_OUT: {
7656 static MonoMethod *variant_clear = NULL;
7659 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7660 g_assert (variant_clear);
7663 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7664 mono_mb_emit_ldarg (mb, argnum);
7665 mono_mb_emit_ldloc_addr (mb, conv_arg);
7666 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7667 mono_mb_emit_byte (mb, CEE_STIND_REF);
7670 mono_mb_emit_ldloc_addr (mb, conv_arg);
7671 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7675 case MARSHAL_ACTION_PUSH:
7677 mono_mb_emit_ldloc_addr (mb, conv_arg);
7679 mono_mb_emit_ldloc (mb, conv_arg);
7682 case MARSHAL_ACTION_CONV_RESULT: {
7683 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7684 mono_mb_emit_exception_marshal_directive (mb, msg);
7688 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7689 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7692 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7694 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7696 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7700 mono_mb_emit_ldarg (mb, argnum);
7702 mono_mb_emit_ldarg_addr (mb, argnum);
7703 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7704 mono_mb_emit_stloc (mb, conv_arg);
7708 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7709 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7710 mono_mb_emit_ldloc (mb, conv_arg);
7711 mono_mb_emit_ldarg (mb, argnum);
7712 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7717 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7718 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7719 mono_mb_emit_exception_marshal_directive (mb, msg);
7724 g_assert_not_reached ();
7731 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7732 MonoMarshalSpec *spec,
7733 int conv_arg, MonoType **conv_arg_type,
7734 MarshalAction action)
7736 MonoMethodBuilder *mb = m->mb;
7737 MonoClass *klass = mono_class_from_mono_type (t);
7738 gboolean need_convert, need_free;
7739 MonoMarshalNative encoding;
7741 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7744 case MARSHAL_ACTION_CONV_IN:
7745 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7746 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7748 if (klass->element_class->blittable) {
7749 mono_mb_emit_ldarg (mb, argnum);
7751 mono_mb_emit_byte (mb, CEE_LDIND_I);
7752 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7753 mono_mb_emit_stloc (mb, conv_arg);
7756 guint32 label1, label2, label3;
7757 int index_var, src_var, dest_ptr, esize;
7758 MonoMarshalConv conv;
7759 gboolean is_string = FALSE;
7761 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7763 eklass = klass->element_class;
7765 if (eklass == mono_defaults.string_class) {
7767 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7769 else if (eklass == mono_defaults.stringbuilder_class) {
7771 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7776 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7777 mono_mb_emit_ldarg (mb, argnum);
7779 mono_mb_emit_byte (mb, CEE_LDIND_I);
7780 mono_mb_emit_stloc (mb, src_var);
7783 mono_mb_emit_ldloc (mb, src_var);
7784 mono_mb_emit_stloc (mb, conv_arg);
7785 mono_mb_emit_ldloc (mb, src_var);
7786 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7790 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7791 MonoException *exc = mono_get_exception_not_implemented (msg);
7794 mono_raise_exception (exc);
7799 esize = sizeof (gpointer);
7801 esize = mono_class_native_size (eklass, NULL);
7803 /* allocate space for the native struct and store the address */
7804 mono_mb_emit_icon (mb, esize);
7805 mono_mb_emit_ldloc (mb, src_var);
7806 mono_mb_emit_byte (mb, CEE_LDLEN);
7808 if (eklass == mono_defaults.string_class) {
7809 /* Make the array bigger for the terminating null */
7810 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7811 mono_mb_emit_byte (mb, CEE_ADD);
7813 mono_mb_emit_byte (mb, CEE_MUL);
7814 mono_mb_emit_byte (mb, CEE_PREFIX1);
7815 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7816 mono_mb_emit_stloc (mb, conv_arg);
7818 mono_mb_emit_ldloc (mb, conv_arg);
7819 mono_mb_emit_stloc (mb, dest_ptr);
7821 /* Emit marshalling loop */
7822 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7823 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7824 mono_mb_emit_stloc (mb, index_var);
7825 label2 = mono_mb_get_label (mb);
7826 mono_mb_emit_ldloc (mb, index_var);
7827 mono_mb_emit_ldloc (mb, src_var);
7828 mono_mb_emit_byte (mb, CEE_LDLEN);
7829 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7831 /* Emit marshalling code */
7834 mono_mb_emit_ldloc (mb, dest_ptr);
7835 mono_mb_emit_ldloc (mb, src_var);
7836 mono_mb_emit_ldloc (mb, index_var);
7837 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7838 mono_mb_emit_icall (mb, conv_to_icall (conv));
7839 mono_mb_emit_byte (mb, CEE_STIND_I);
7841 /* set the src_ptr */
7842 mono_mb_emit_ldloc (mb, src_var);
7843 mono_mb_emit_ldloc (mb, index_var);
7844 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7845 mono_mb_emit_stloc (mb, 0);
7848 mono_mb_emit_ldloc (mb, dest_ptr);
7849 mono_mb_emit_stloc (mb, 1);
7851 /* emit valuetype conversion code */
7852 emit_struct_conv (mb, eklass, FALSE);
7855 mono_mb_emit_add_to_local (mb, index_var, 1);
7856 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7858 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7860 mono_mb_patch_branch (mb, label3);
7862 if (eklass == mono_defaults.string_class) {
7863 /* Null terminate */
7864 mono_mb_emit_ldloc (mb, dest_ptr);
7865 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7866 mono_mb_emit_byte (mb, CEE_STIND_REF);
7869 mono_mb_patch_branch (mb, label1);
7874 case MARSHAL_ACTION_CONV_OUT:
7875 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7876 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);
7877 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7880 if (need_convert || need_free) {
7881 /* FIXME: Optimize blittable case */
7883 guint32 label1, label2, label3;
7884 int index_var, src_ptr, loc, esize;
7886 eklass = klass->element_class;
7887 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7888 esize = sizeof (gpointer);
7890 esize = mono_class_native_size (eklass, NULL);
7891 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7892 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7895 mono_mb_emit_ldarg (mb, argnum);
7897 mono_mb_emit_byte (mb, CEE_LDIND_I);
7898 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7900 mono_mb_emit_ldloc (mb, conv_arg);
7901 mono_mb_emit_stloc (mb, src_ptr);
7903 /* Emit marshalling loop */
7904 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7905 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7906 mono_mb_emit_stloc (mb, index_var);
7907 label2 = mono_mb_get_label (mb);
7908 mono_mb_emit_ldloc (mb, index_var);
7909 mono_mb_emit_ldarg (mb, argnum);
7911 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7912 mono_mb_emit_byte (mb, CEE_LDLEN);
7913 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7915 /* Emit marshalling code */
7917 if (eklass == mono_defaults.stringbuilder_class) {
7918 gboolean need_free2;
7919 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7921 g_assert (conv != -1);
7924 mono_mb_emit_ldarg (mb, argnum);
7926 mono_mb_emit_byte (mb, CEE_LDIND_I);
7927 mono_mb_emit_ldloc (mb, index_var);
7928 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7931 mono_mb_emit_ldloc (mb, src_ptr);
7932 mono_mb_emit_byte (mb, CEE_LDIND_I);
7934 mono_mb_emit_icall (mb, conv_to_icall (conv));
7938 mono_mb_emit_ldloc (mb, src_ptr);
7939 mono_mb_emit_byte (mb, CEE_LDIND_I);
7941 mono_mb_emit_icall (mb, mono_marshal_free);
7944 else if (eklass == mono_defaults.string_class) {
7947 mono_mb_emit_ldloc (mb, src_ptr);
7948 mono_mb_emit_byte (mb, CEE_LDIND_I);
7950 mono_mb_emit_icall (mb, mono_marshal_free);
7955 /* set the src_ptr */
7956 mono_mb_emit_ldloc (mb, src_ptr);
7957 mono_mb_emit_stloc (mb, 0);
7960 mono_mb_emit_ldarg (mb, argnum);
7962 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7963 mono_mb_emit_ldloc (mb, index_var);
7964 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7965 mono_mb_emit_stloc (mb, 1);
7967 /* emit valuetype conversion code */
7968 emit_struct_conv (mb, eklass, TRUE);
7972 mono_mb_emit_ldloc (mb, src_ptr);
7973 mono_mb_emit_stloc (mb, loc);
7974 mono_mb_emit_ldloc (mb, loc);
7976 emit_struct_free (mb, eklass, loc);
7980 mono_mb_emit_add_to_local (mb, index_var, 1);
7981 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7983 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7985 mono_mb_patch_branch (mb, label1);
7986 mono_mb_patch_branch (mb, label3);
7990 case MARSHAL_ACTION_PUSH:
7992 mono_mb_emit_ldloc_addr (mb, conv_arg);
7994 mono_mb_emit_ldloc (mb, conv_arg);
7997 case MARSHAL_ACTION_CONV_RESULT:
7998 /* fixme: we need conversions here */
7999 mono_mb_emit_stloc (mb, 3);
8002 case MARSHAL_ACTION_MANAGED_CONV_IN: {
8004 guint32 label1, label2, label3;
8005 int index_var, src_ptr, loc, esize, param_num, num_elem;
8006 MonoMarshalConv conv;
8007 gboolean is_string = FALSE;
8009 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8010 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8013 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
8014 mono_mb_emit_exception_marshal_directive (mb, msg);
8018 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
8019 mono_mb_emit_exception_marshal_directive (mb, msg);
8022 if (spec->native != MONO_NATIVE_LPARRAY) {
8023 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
8024 mono_mb_emit_exception_marshal_directive (mb, msg);
8028 /* FIXME: t is from the method which is wrapped, not the delegate type */
8029 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
8031 param_num = spec->data.array_data.param_num;
8032 num_elem = spec->data.array_data.num_elem;
8033 if (spec->data.array_data.elem_mult == 0)
8034 /* param_num is not specified */
8037 if (param_num == -1) {
8038 if (num_elem <= 0) {
8039 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
8040 mono_mb_emit_exception_marshal_directive (mb, msg);
8045 /* FIXME: Optimize blittable case */
8047 eklass = klass->element_class;
8048 if (eklass == mono_defaults.string_class) {
8050 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
8052 else if (eklass == mono_defaults.stringbuilder_class) {
8054 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
8059 mono_marshal_load_type_info (eklass);
8062 esize = sizeof (gpointer);
8064 esize = mono_class_native_size (eklass, NULL);
8065 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8066 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8068 mono_mb_emit_byte (mb, CEE_LDNULL);
8069 mono_mb_emit_stloc (mb, conv_arg);
8071 /* Check param index */
8072 if (param_num != -1) {
8073 if (param_num >= m->sig->param_count) {
8074 char *msg = g_strdup ("Array size control parameter index is out of range.");
8075 mono_mb_emit_exception_marshal_directive (mb, msg);
8078 switch (m->sig->params [param_num]->type) {
8091 char *msg = g_strdup ("Array size control parameter must be an integral type.");
8092 mono_mb_emit_exception_marshal_directive (mb, msg);
8099 mono_mb_emit_ldarg (mb, argnum);
8100 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8102 mono_mb_emit_ldarg (mb, argnum);
8103 mono_mb_emit_stloc (mb, src_ptr);
8105 /* Create managed array */
8107 * The LPArray marshalling spec says that sometimes param_num starts
8108 * from 1, sometimes it starts from 0. But MS seems to allways start
8112 if (param_num == -1)
8113 mono_mb_emit_icon (mb, num_elem);
8115 /* FIXME: Add the two together */
8116 mono_mb_emit_ldarg (mb, param_num);
8118 mono_mb_emit_icon (mb, num_elem);
8119 mono_mb_emit_byte (mb, CEE_ADD);
8123 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
8124 mono_mb_emit_stloc (mb, conv_arg);
8126 if (eklass->blittable) {
8127 mono_mb_emit_ldloc (mb, conv_arg);
8128 mono_mb_emit_byte (mb, CEE_CONV_I);
8129 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8130 mono_mb_emit_byte (mb, CEE_ADD);
8131 mono_mb_emit_ldarg (mb, argnum);
8132 mono_mb_emit_ldloc (mb, conv_arg);
8133 mono_mb_emit_byte (mb, CEE_LDLEN);
8134 mono_mb_emit_icon (mb, esize);
8135 mono_mb_emit_byte (mb, CEE_MUL);
8136 mono_mb_emit_byte (mb, CEE_PREFIX1);
8137 mono_mb_emit_byte (mb, CEE_CPBLK);
8141 /* Emit marshalling loop */
8142 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8143 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8144 mono_mb_emit_stloc (mb, index_var);
8145 label2 = mono_mb_get_label (mb);
8146 mono_mb_emit_ldloc (mb, index_var);
8147 mono_mb_emit_ldloc (mb, conv_arg);
8148 mono_mb_emit_byte (mb, CEE_LDLEN);
8149 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8151 /* Emit marshalling code */
8153 g_assert (conv != -1);
8155 mono_mb_emit_ldloc (mb, conv_arg);
8156 mono_mb_emit_ldloc (mb, index_var);
8158 mono_mb_emit_ldloc (mb, src_ptr);
8159 mono_mb_emit_byte (mb, CEE_LDIND_I);
8161 mono_mb_emit_icall (mb, conv_to_icall (conv));
8162 mono_mb_emit_byte (mb, CEE_STELEM_REF);
8165 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8166 mono_mb_emit_exception_marshal_directive (mb, msg);
8170 mono_mb_emit_add_to_local (mb, index_var, 1);
8171 mono_mb_emit_add_to_local (mb, src_ptr, esize);
8173 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8175 mono_mb_patch_branch (mb, label1);
8176 mono_mb_patch_branch (mb, label3);
8180 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
8182 guint32 label1, label2, label3;
8183 int index_var, dest_ptr, loc, esize, param_num, num_elem;
8184 MonoMarshalConv conv;
8185 gboolean is_string = FALSE;
8188 /* Already handled in CONV_IN */
8191 /* These are already checked in CONV_IN */
8192 g_assert (!t->byref);
8193 g_assert (spec->native == MONO_NATIVE_LPARRAY);
8194 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
8196 param_num = spec->data.array_data.param_num;
8197 num_elem = spec->data.array_data.num_elem;
8199 if (spec->data.array_data.elem_mult == 0)
8200 /* param_num is not specified */
8203 if (param_num == -1) {
8204 if (num_elem <= 0) {
8205 g_assert_not_reached ();
8209 /* FIXME: Optimize blittable case */
8211 eklass = klass->element_class;
8212 if (eklass == mono_defaults.string_class) {
8214 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8216 else if (eklass == mono_defaults.stringbuilder_class) {
8218 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
8223 mono_marshal_load_type_info (eklass);
8226 esize = sizeof (gpointer);
8228 esize = mono_class_native_size (eklass, NULL);
8230 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8231 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8234 mono_mb_emit_ldloc (mb, conv_arg);
8235 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8237 mono_mb_emit_ldarg (mb, argnum);
8238 mono_mb_emit_stloc (mb, dest_ptr);
8240 if (eklass->blittable) {
8242 mono_mb_emit_ldarg (mb, argnum);
8244 mono_mb_emit_ldloc (mb, conv_arg);
8245 mono_mb_emit_byte (mb, CEE_CONV_I);
8246 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8247 mono_mb_emit_byte (mb, CEE_ADD);
8249 mono_mb_emit_ldloc (mb, conv_arg);
8250 mono_mb_emit_byte (mb, CEE_LDLEN);
8251 mono_mb_emit_icon (mb, esize);
8252 mono_mb_emit_byte (mb, CEE_MUL);
8253 mono_mb_emit_byte (mb, CEE_PREFIX1);
8254 mono_mb_emit_byte (mb, CEE_CPBLK);
8258 /* Emit marshalling loop */
8259 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8260 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8261 mono_mb_emit_stloc (mb, index_var);
8262 label2 = mono_mb_get_label (mb);
8263 mono_mb_emit_ldloc (mb, index_var);
8264 mono_mb_emit_ldloc (mb, conv_arg);
8265 mono_mb_emit_byte (mb, CEE_LDLEN);
8266 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8268 /* Emit marshalling code */
8270 g_assert (conv != -1);
8273 mono_mb_emit_ldloc (mb, dest_ptr);
8276 mono_mb_emit_ldloc (mb, conv_arg);
8277 mono_mb_emit_ldloc (mb, index_var);
8279 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8281 mono_mb_emit_icall (mb, conv_to_icall (conv));
8282 mono_mb_emit_byte (mb, CEE_STIND_I);
8285 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8286 mono_mb_emit_exception_marshal_directive (mb, msg);
8290 mono_mb_emit_add_to_local (mb, index_var, 1);
8291 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8293 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8295 mono_mb_patch_branch (mb, label1);
8296 mono_mb_patch_branch (mb, label3);
8300 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8302 guint32 label1, label2, label3;
8303 int index_var, src, dest, esize;
8304 MonoMarshalConv conv = -1;
8305 gboolean is_string = FALSE;
8307 g_assert (!t->byref);
8309 eklass = klass->element_class;
8311 mono_marshal_load_type_info (eklass);
8313 if (eklass == mono_defaults.string_class) {
8315 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8318 g_assert_not_reached ();
8322 esize = sizeof (gpointer);
8324 esize = mono_class_native_size (eklass, NULL);
8326 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8327 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8329 mono_mb_emit_stloc (mb, src);
8330 mono_mb_emit_ldloc (mb, src);
8331 mono_mb_emit_stloc (mb, 3);
8333 /* Check for null */
8334 mono_mb_emit_ldloc (mb, src);
8335 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8337 /* Allocate native array */
8338 mono_mb_emit_icon (mb, esize);
8339 mono_mb_emit_ldloc (mb, src);
8340 mono_mb_emit_byte (mb, CEE_LDLEN);
8342 if (eklass == mono_defaults.string_class) {
8343 /* Make the array bigger for the terminating null */
8344 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8345 mono_mb_emit_byte (mb, CEE_ADD);
8347 mono_mb_emit_byte (mb, CEE_MUL);
8348 mono_mb_emit_icall (mb, mono_marshal_alloc);
8349 mono_mb_emit_stloc (mb, dest);
8350 mono_mb_emit_ldloc (mb, dest);
8351 mono_mb_emit_stloc (mb, 3);
8353 /* Emit marshalling loop */
8354 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8355 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8356 mono_mb_emit_stloc (mb, index_var);
8357 label2 = mono_mb_get_label (mb);
8358 mono_mb_emit_ldloc (mb, index_var);
8359 mono_mb_emit_ldloc (mb, src);
8360 mono_mb_emit_byte (mb, CEE_LDLEN);
8361 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8363 /* Emit marshalling code */
8365 g_assert (conv != -1);
8368 mono_mb_emit_ldloc (mb, dest);
8371 mono_mb_emit_ldloc (mb, src);
8372 mono_mb_emit_ldloc (mb, index_var);
8374 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8376 mono_mb_emit_icall (mb, conv_to_icall (conv));
8377 mono_mb_emit_byte (mb, CEE_STIND_I);
8380 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8381 mono_mb_emit_exception_marshal_directive (mb, msg);
8385 mono_mb_emit_add_to_local (mb, index_var, 1);
8386 mono_mb_emit_add_to_local (mb, dest, esize);
8388 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8390 mono_mb_patch_branch (mb, label3);
8391 mono_mb_patch_branch (mb, label1);
8395 g_assert_not_reached ();
8402 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8403 MonoMarshalSpec *spec,
8404 int conv_arg, MonoType **conv_arg_type,
8405 MarshalAction action)
8407 MonoMethodBuilder *mb = m->mb;
8410 case MARSHAL_ACTION_CONV_IN: {
8411 MonoType *local_type;
8412 int variant_bool = 0;
8416 local_type = &mono_defaults.int32_class->byval_arg;
8418 switch (spec->native) {
8419 case MONO_NATIVE_I1:
8420 case MONO_NATIVE_U1:
8421 local_type = &mono_defaults.byte_class->byval_arg;
8423 case MONO_NATIVE_VARIANTBOOL:
8424 local_type = &mono_defaults.int16_class->byval_arg;
8428 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8429 local_type = &mono_defaults.int32_class->byval_arg;
8433 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8434 conv_arg = mono_mb_add_local (mb, local_type);
8435 mono_mb_emit_ldarg (mb, argnum);
8436 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8438 mono_mb_emit_byte (mb, CEE_NEG);
8439 mono_mb_emit_stloc (mb, conv_arg);
8443 case MARSHAL_ACTION_CONV_OUT:
8446 mono_mb_emit_ldarg (mb, argnum);
8447 mono_mb_emit_ldloc (mb, conv_arg);
8448 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8449 mono_mb_emit_byte (mb, CEE_NEG);
8450 mono_mb_emit_byte (mb, CEE_STIND_I1);
8453 case MARSHAL_ACTION_PUSH:
8455 mono_mb_emit_ldloc_addr (mb, conv_arg);
8457 mono_mb_emit_ldarg (mb, argnum);
8460 case MARSHAL_ACTION_CONV_RESULT:
8461 /* maybe we need to make sure that it fits within 8 bits */
8462 mono_mb_emit_stloc (mb, 3);
8466 g_assert_not_reached ();
8473 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8474 MonoMarshalSpec *spec, int conv_arg,
8475 MonoType **conv_arg_type, MarshalAction action)
8477 MonoMethodBuilder *mb = m->mb;
8480 case MARSHAL_ACTION_CONV_IN:
8481 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8482 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8483 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8487 case MARSHAL_ACTION_PUSH:
8488 mono_mb_emit_ldarg (mb, argnum);
8491 case MARSHAL_ACTION_CONV_RESULT:
8492 /* no conversions necessary */
8493 mono_mb_emit_stloc (mb, 3);
8504 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8505 MonoMarshalSpec *spec, int conv_arg,
8506 MonoType **conv_arg_type, MarshalAction action)
8508 MonoMethodBuilder *mb = m->mb;
8511 case MARSHAL_ACTION_PUSH:
8512 /* fixme: dont know how to marshal that. We cant simply
8513 * convert it to a one byte UTF8 character, because an
8514 * unicode character may need more that one byte in UTF8 */
8515 mono_mb_emit_ldarg (mb, argnum);
8518 case MARSHAL_ACTION_CONV_RESULT:
8519 /* fixme: we need conversions here */
8520 mono_mb_emit_stloc (mb, 3);
8531 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8532 MonoMarshalSpec *spec, int conv_arg,
8533 MonoType **conv_arg_type, MarshalAction action)
8535 MonoMethodBuilder *mb = m->mb;
8538 case MARSHAL_ACTION_PUSH:
8539 mono_mb_emit_ldarg (mb, argnum);
8542 case MARSHAL_ACTION_CONV_RESULT:
8543 /* no conversions necessary */
8544 mono_mb_emit_stloc (mb, 3);
8555 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8556 MonoMarshalSpec *spec, int conv_arg,
8557 MonoType **conv_arg_type, MarshalAction action)
8559 /* Ensure that we have marshalling info for this param */
8560 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8562 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8563 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8565 if (spec && spec->native == MONO_NATIVE_ASANY)
8566 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8569 case MONO_TYPE_VALUETYPE:
8570 if (t->data.klass == mono_defaults.handleref_class)
8571 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8573 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8574 case MONO_TYPE_STRING:
8575 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8576 case MONO_TYPE_CLASS:
8577 case MONO_TYPE_OBJECT:
8578 if (spec && spec->native == MONO_NATIVE_STRUCT)
8579 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8582 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8583 spec->native == MONO_NATIVE_IDISPATCH ||
8584 spec->native == MONO_NATIVE_INTERFACE))
8585 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8588 if (mono_defaults.safehandle_class != NULL &&
8589 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8590 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8592 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8593 case MONO_TYPE_ARRAY:
8594 case MONO_TYPE_SZARRAY:
8595 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8596 case MONO_TYPE_BOOLEAN:
8597 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8599 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8600 case MONO_TYPE_CHAR:
8601 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8614 case MONO_TYPE_FNPTR:
8615 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8622 * mono_marshal_emit_native_wrapper:
8623 * @image: the image to use for looking up custom marshallers
8624 * @sig: The signature of the native function
8625 * @piinfo: Marshalling information
8626 * @mspecs: Marshalling information
8627 * @func: the native function to call
8628 * @check_exceptions: Whenever to check for pending exceptions after the native call
8630 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8633 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions)
8635 EmitMarshalContext m;
8636 MonoMethodSignature *csig;
8638 int i, argnum, *tmp_locals;
8640 static MonoMethodSignature *get_last_error_sig = NULL;
8645 /* we copy the signature, so that we can set pinvoke to 0 */
8646 csig = signature_dup (mb->method->klass->image, sig);
8651 /* we allocate local for use with emit_struct_conv() */
8652 /* allocate local 0 (pointer) src_ptr */
8653 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8654 /* allocate local 1 (pointer) dst_ptr */
8655 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8656 /* allocate local 2 (boolean) delete_old */
8657 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8659 /* delete_old = FALSE */
8660 mono_mb_emit_icon (mb, 0);
8661 mono_mb_emit_stloc (mb, 2);
8663 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8664 /* allocate local 3 to store the return value */
8665 mono_mb_add_local (mb, sig->ret);
8668 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8669 /* Return type custom marshaling */
8671 * Since we can't determine the return type of the unmanaged function,
8672 * we assume it returns a pointer, and pass that pointer to
8673 * MarshalNativeToManaged.
8675 csig->ret = &mono_defaults.int_class->byval_arg;
8678 /* we first do all conversions */
8679 tmp_locals = alloca (sizeof (int) * sig->param_count);
8680 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8682 for (i = 0; i < sig->param_count; i ++) {
8683 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8686 /* push all arguments */
8689 mono_mb_emit_byte (mb, CEE_LDARG_0);
8692 for (i = 0; i < sig->param_count; i++) {
8693 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8696 /* call the native method */
8697 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8699 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8701 g_assert_not_reached ();
8705 mono_mb_emit_native_call (mb, csig, func);
8708 /* Set LastError if needed */
8709 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8710 if (!get_last_error_sig) {
8711 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8712 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8713 get_last_error_sig->pinvoke = 1;
8716 #ifdef PLATFORM_WIN32
8718 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8719 * clobber its value.
8721 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8722 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8724 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8728 /* convert the result */
8729 if (!sig->ret->byref) {
8730 MonoMarshalSpec *spec = mspecs [0];
8731 type = sig->ret->type;
8733 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8734 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8739 case MONO_TYPE_VOID:
8741 case MONO_TYPE_VALUETYPE:
8742 klass = sig->ret->data.klass;
8743 if (klass->enumtype) {
8744 type = sig->ret->data.klass->enum_basetype->type;
8747 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8761 case MONO_TYPE_FNPTR:
8762 case MONO_TYPE_STRING:
8763 case MONO_TYPE_CLASS:
8764 case MONO_TYPE_OBJECT:
8765 case MONO_TYPE_BOOLEAN:
8766 case MONO_TYPE_ARRAY:
8767 case MONO_TYPE_SZARRAY:
8768 case MONO_TYPE_CHAR:
8770 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8772 case MONO_TYPE_TYPEDBYREF:
8774 g_warning ("return type 0x%02x unknown", sig->ret->type);
8775 g_assert_not_reached ();
8779 mono_mb_emit_stloc (mb, 3);
8783 * Need to call this after converting the result since MONO_VTADDR needs
8784 * to be adjacent to the call instruction.
8786 if (check_exceptions)
8787 emit_thread_interrupt_checkpoint (mb);
8789 /* we need to convert byref arguments back and free string arrays */
8790 for (i = 0; i < sig->param_count; i++) {
8791 MonoType *t = sig->params [i];
8792 MonoMarshalSpec *spec = mspecs [i + 1];
8794 argnum = i + sig->hasthis;
8796 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8797 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8802 case MONO_TYPE_STRING:
8803 case MONO_TYPE_VALUETYPE:
8804 case MONO_TYPE_CLASS:
8805 case MONO_TYPE_OBJECT:
8806 case MONO_TYPE_SZARRAY:
8807 case MONO_TYPE_BOOLEAN:
8808 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8813 if (!MONO_TYPE_IS_VOID(sig->ret))
8814 mono_mb_emit_ldloc (mb, 3);
8816 mono_mb_emit_byte (mb, CEE_RET);
8820 * mono_marshal_get_native_wrapper:
8821 * @method: The MonoMethod to wrap.
8822 * @check_exceptions: Whenever to check for pending exceptions
8824 * generates IL code for the pinvoke wrapper (the generated method
8825 * calls the unmanaged code in piinfo->addr)
8828 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8830 MonoMethodSignature *sig, *csig;
8831 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8832 MonoMethodBuilder *mb;
8833 MonoMarshalSpec **mspecs;
8836 gboolean pinvoke = FALSE;
8839 const char *exc_class = "MissingMethodException";
8840 const char *exc_arg = NULL;
8842 g_assert (method != NULL);
8843 g_assert (mono_method_signature (method)->pinvoke);
8845 cache = method->klass->image->native_wrapper_cache;
8846 if ((res = mono_marshal_find_in_cache (cache, method)))
8849 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8851 return cominterop_get_native_wrapper (method);
8853 g_assert_not_reached ();
8857 sig = mono_method_signature (method);
8859 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8860 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8863 if (!piinfo->addr) {
8865 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8866 exc_arg = "Method contains unsupported native code";
8868 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8870 piinfo->addr = mono_lookup_internal_call (method);
8873 /* hack - redirect certain string constructors to CreateString */
8874 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8875 g_assert (!pinvoke);
8876 g_assert (method->string_ctor);
8877 g_assert (sig->hasthis);
8879 /* CreateString returns a value */
8880 csig = signature_dup (method->klass->image, sig);
8881 csig->ret = &mono_defaults.string_class->byval_arg;
8885 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8886 if (!strcmp ("CreateString", res->name) &&
8887 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8889 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8890 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8892 /* create a wrapper to preserve .ctor in stack trace */
8893 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8895 mono_mb_emit_byte (mb, CEE_LDARG_0);
8896 for (i = 1; i <= csig->param_count; i++)
8897 mono_mb_emit_ldarg (mb, i);
8898 mono_mb_emit_managed_call (mb, res, NULL);
8899 mono_mb_emit_byte (mb, CEE_RET);
8901 /* use native_wrapper_cache because internal calls are looked up there */
8902 res = mono_mb_create_and_cache (cache, method,
8903 mb, csig, csig->param_count + 1);
8911 /* exception will be thrown */
8912 piinfo->addr = NULL;
8913 g_warning ("cannot find CreateString for .ctor");
8916 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8918 mb->method->save_lmf = 1;
8921 * In AOT mode and embedding scenarios, it is possible that the icall is not
8922 * registered in the runtime doing the AOT compilation.
8924 if (!piinfo->addr && !aot) {
8925 mono_mb_emit_exception (mb, exc_class, exc_arg);
8926 csig = signature_dup (method->klass->image, sig);
8928 res = mono_mb_create_and_cache (cache, method,
8929 mb, csig, csig->param_count + 16);
8934 /* internal calls: we simply push all arguments and call the method (no conversions) */
8935 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8937 /* hack - string constructors returns a value */
8938 if (method->string_ctor) {
8939 csig = signature_dup (method->klass->image, sig);
8940 csig->ret = &mono_defaults.string_class->byval_arg;
8945 mono_mb_emit_byte (mb, CEE_LDARG_0);
8947 for (i = 0; i < sig->param_count; i++)
8948 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8951 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8952 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8953 mono_mb_emit_calli (mb, csig);
8955 g_assert (piinfo->addr);
8956 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8958 if (check_exceptions)
8959 emit_thread_interrupt_checkpoint (mb);
8960 mono_mb_emit_byte (mb, CEE_RET);
8962 csig = signature_dup (method->klass->image, csig);
8964 res = mono_mb_create_and_cache (cache, method,
8965 mb, csig, csig->param_count + 16);
8971 g_assert (piinfo->addr);
8973 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8974 mono_method_get_marshal_info (method, mspecs);
8976 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, check_exceptions);
8978 csig = signature_dup (method->klass->image, sig);
8980 res = mono_mb_create_and_cache (cache, method,
8981 mb, csig, csig->param_count + 16);
8984 for (i = sig->param_count; i >= 0; i--)
8986 mono_metadata_free_marshal_spec (mspecs [i]);
8989 /* 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)); */
8995 * mono_marshal_get_native_func_wrapper:
8996 * @image: The image to use for memory allocation and for looking up custom marshallers.
8997 * @sig: The signature of the function
8998 * @func: The native function to wrap
9000 * Returns a wrapper method around native functions, similar to the pinvoke
9004 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
9005 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
9007 MonoMethodSignature *csig;
9009 MonoMethodBuilder *mb;
9014 cache = image->native_wrapper_cache;
9015 if ((res = mono_marshal_find_in_cache (cache, func)))
9018 name = g_strdup_printf ("wrapper_native_%p", func);
9019 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
9020 mb->method->save_lmf = 1;
9022 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, TRUE);
9024 csig = signature_dup (image, sig);
9026 res = mono_mb_create_and_cache (cache, func,
9027 mb, csig, csig->param_count + 16);
9030 /* 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)); */
9035 /* FIXME: moving GC */
9037 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
9039 MonoMethodSignature *sig, *csig;
9045 /* allocate local 0 (pointer) src_ptr */
9046 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9047 /* allocate local 1 (pointer) dst_ptr */
9048 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9049 /* allocate local 2 (boolean) delete_old */
9050 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9052 if (!MONO_TYPE_IS_VOID(sig->ret)) {
9053 /* allocate local 3 to store the return value */
9054 mono_mb_add_local (mb, sig->ret);
9057 mono_mb_emit_icon (mb, 0);
9058 mono_mb_emit_stloc (mb, 2);
9060 /* we first do all conversions */
9061 tmp_locals = alloca (sizeof (int) * sig->param_count);
9062 for (i = 0; i < sig->param_count; i ++) {
9063 MonoType *t = sig->params [i];
9066 case MONO_TYPE_OBJECT:
9067 case MONO_TYPE_CLASS:
9068 case MONO_TYPE_VALUETYPE:
9069 case MONO_TYPE_ARRAY:
9070 case MONO_TYPE_SZARRAY:
9071 case MONO_TYPE_STRING:
9072 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
9081 emit_thread_interrupt_checkpoint (mb);
9083 /* fixme: howto handle this ? */
9086 /* FIXME: need a solution for the moving GC here */
9087 mono_mb_emit_ptr (mb, this);
9090 g_assert_not_reached ();
9094 for (i = 0; i < sig->param_count; i++) {
9095 MonoType *t = sig->params [i];
9097 if (tmp_locals [i]) {
9099 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
9101 mono_mb_emit_ldloc (mb, tmp_locals [i]);
9104 mono_mb_emit_ldarg (mb, i);
9107 mono_mb_emit_managed_call (mb, method, NULL);
9109 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
9110 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9113 if (!sig->ret->byref) {
9114 switch (sig->ret->type) {
9115 case MONO_TYPE_VOID:
9117 case MONO_TYPE_BOOLEAN:
9131 case MONO_TYPE_OBJECT:
9132 mono_mb_emit_stloc (mb, 3);
9134 case MONO_TYPE_STRING:
9135 csig->ret = &mono_defaults.int_class->byval_arg;
9136 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9138 case MONO_TYPE_VALUETYPE:
9139 case MONO_TYPE_CLASS:
9140 case MONO_TYPE_SZARRAY:
9141 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9144 g_warning ("return type 0x%02x unknown", sig->ret->type);
9145 g_assert_not_reached ();
9148 mono_mb_emit_stloc (mb, 3);
9151 /* Convert byref arguments back */
9152 for (i = 0; i < sig->param_count; i ++) {
9153 MonoType *t = sig->params [i];
9154 MonoMarshalSpec *spec = mspecs [i + 1];
9156 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
9157 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9159 else if (t->byref) {
9161 case MONO_TYPE_CLASS:
9162 case MONO_TYPE_VALUETYPE:
9163 case MONO_TYPE_OBJECT:
9164 case MONO_TYPE_STRING:
9165 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9169 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
9170 /* The [Out] information is encoded in the delegate signature */
9172 case MONO_TYPE_SZARRAY:
9173 case MONO_TYPE_CLASS:
9174 case MONO_TYPE_VALUETYPE:
9175 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9178 g_assert_not_reached ();
9183 if (m->retobj_var) {
9184 mono_mb_emit_ldloc (mb, m->retobj_var);
9185 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9186 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
9189 if (!MONO_TYPE_IS_VOID(sig->ret))
9190 mono_mb_emit_ldloc (mb, 3);
9191 mono_mb_emit_byte (mb, CEE_RET);
9197 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
9199 MonoMethodSignature *sig;
9202 #ifdef PLATFORM_WIN32
9204 * Under windows, delegates passed to native code must use the STDCALL
9205 * calling convention.
9207 csig->call_convention = MONO_CALL_STDCALL;
9210 sig = mono_method_signature (method);
9212 /* Change default calling convention if needed */
9213 /* Why is this a modopt ? */
9214 if (sig->ret && sig->ret->num_mods) {
9215 for (i = 0; i < sig->ret->num_mods; ++i) {
9216 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
9217 g_assert (cmod_class);
9218 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
9219 if (!strcmp (cmod_class->name, "CallConvCdecl"))
9220 csig->call_convention = MONO_CALL_C;
9221 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
9222 csig->call_convention = MONO_CALL_STDCALL;
9223 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
9224 csig->call_convention = MONO_CALL_FASTCALL;
9225 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
9226 csig->call_convention = MONO_CALL_THISCALL;
9233 * generates IL code to call managed methods from unmanaged code
9236 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
9238 static MonoClass *UnmanagedFunctionPointerAttribute;
9239 MonoMethodSignature *sig, *csig, *invoke_sig;
9240 MonoMethodBuilder *mb;
9241 MonoMethod *res, *invoke;
9242 MonoMarshalSpec **mspecs;
9243 MonoMethodPInvoke piinfo;
9246 EmitMarshalContext m;
9248 g_assert (method != NULL);
9249 g_assert (!mono_method_signature (method)->pinvoke);
9252 * FIXME: Should cache the method+delegate type pair, since the same method
9253 * could be called with different delegates, thus different marshalling
9256 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
9257 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
9260 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
9261 invoke_sig = mono_method_signature (invoke);
9263 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9264 mono_method_get_marshal_info (invoke, mspecs);
9266 sig = mono_method_signature (method);
9268 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9271 /* we copy the signature, so that we can modify it */
9273 /* Need to free this later */
9274 csig = mono_metadata_signature_dup (sig);
9276 csig = signature_dup (method->klass->image, sig);
9285 m.image = method->klass->image;
9287 mono_marshal_set_callconv_from_modopt (invoke, csig);
9289 /* Handle the UnmanagedFunctionPointerAttribute */
9290 if (!UnmanagedFunctionPointerAttribute)
9291 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9293 /* The attribute is only available in Net 2.0 */
9294 if (UnmanagedFunctionPointerAttribute) {
9295 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9296 MonoCustomAttrInfo *cinfo;
9299 * The pinvoke attributes are stored in a real custom attribute so we have to
9302 cinfo = mono_custom_attrs_from_class (delegate_klass);
9304 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9306 memset (&piinfo, 0, sizeof (piinfo));
9308 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9310 csig->call_convention = attr->call_conv - 1;
9313 mono_custom_attrs_free (cinfo);
9317 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9320 res = mono_mb_create_and_cache (cache, method,
9321 mb, csig, sig->param_count + 16);
9324 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9328 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9330 mono_metadata_free_marshal_spec (mspecs [i]);
9333 /* 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)); */
9339 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9342 MonoMethodSignature *sig;
9343 MonoMethodBuilder *mb;
9348 method = mono_get_method (image, token, NULL);
9351 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9352 MonoMethodSignature *csig;
9353 MonoMarshalSpec **mspecs;
9354 EmitMarshalContext m;
9356 sig = mono_method_signature (method);
9357 g_assert (!sig->hasthis);
9359 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9360 mono_method_get_marshal_info (method, mspecs);
9362 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9363 csig = signature_dup (image, sig);
9374 mono_marshal_set_callconv_from_modopt (method, csig);
9376 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9378 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
9381 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9384 for (i = sig->param_count; i >= 0; i--)
9386 mono_metadata_free_marshal_spec (mspecs [i]);
9389 return mono_compile_method (method);
9392 sig = mono_method_signature (method);
9393 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9395 param_count = sig->param_count + sig->hasthis;
9396 for (i = 0; i < param_count; i++)
9397 mono_mb_emit_ldarg (mb, i);
9399 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9400 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9402 mono_mb_emit_op (mb, CEE_CALL, method);
9403 mono_mb_emit_byte (mb, CEE_RET);
9406 method = mono_mb_create_method (mb, sig, param_count);
9409 return mono_compile_method (method);
9412 static MonoReflectionType *
9413 type_from_handle (MonoType *handle)
9415 MonoDomain *domain = mono_domain_get ();
9416 MonoClass *klass = mono_class_from_mono_type (handle);
9418 MONO_ARCH_SAVE_REGS;
9420 mono_class_init (klass);
9421 return mono_type_get_object (domain, handle);
9425 * mono_marshal_get_isinst:
9426 * @klass: the type of the field
9428 * This method generates a function which can be used to check if an object is
9429 * an instance of the given type, icluding the case where the object is a proxy.
9430 * The generated function has the following signature:
9431 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9434 mono_marshal_get_isinst (MonoClass *klass)
9436 static MonoMethodSignature *isint_sig = NULL;
9439 int pos_was_ok, pos_failed, pos_end, pos_end2;
9441 MonoMethodBuilder *mb;
9443 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9444 if ((res = mono_marshal_find_in_cache (cache, klass)))
9448 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9449 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9450 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9451 isint_sig->pinvoke = 0;
9454 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9455 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9458 mb->method->save_lmf = 1;
9460 /* check if the object is a proxy that needs special cast */
9461 mono_mb_emit_ldarg (mb, 0);
9462 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9463 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9465 /* The result of MONO_ISINST can be:
9466 0) the type check succeeded
9467 1) the type check did not succeed
9468 2) a CanCastTo call is needed */
9470 mono_mb_emit_byte (mb, CEE_DUP);
9471 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9473 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9474 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9476 /* get the real proxy from the transparent proxy*/
9478 mono_mb_emit_ldarg (mb, 0);
9479 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9480 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9484 mono_mb_patch_branch (mb, pos_failed);
9485 mono_mb_emit_byte (mb, CEE_LDNULL);
9486 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9490 mono_mb_patch_branch (mb, pos_was_ok);
9491 mono_mb_emit_byte (mb, CEE_POP);
9492 mono_mb_emit_ldarg (mb, 0);
9496 mono_mb_patch_branch (mb, pos_end);
9497 mono_mb_patch_branch (mb, pos_end2);
9498 mono_mb_emit_byte (mb, CEE_RET);
9500 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9507 * mono_marshal_get_castclass:
9508 * @klass: the type of the field
9510 * This method generates a function which can be used to cast an object to
9511 * an instance of the given type, icluding the case where the object is a proxy.
9512 * The generated function has the following signature:
9513 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9516 mono_marshal_get_castclass (MonoClass *klass)
9518 static MonoMethodSignature *castclass_sig = NULL;
9521 int pos_was_ok, pos_was_ok2;
9523 MonoMethodBuilder *mb;
9525 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9526 if ((res = mono_marshal_find_in_cache (cache, klass)))
9529 if (!castclass_sig) {
9530 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9531 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9532 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9533 castclass_sig->pinvoke = 0;
9536 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9537 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9540 mb->method->save_lmf = 1;
9542 /* check if the object is a proxy that needs special cast */
9543 mono_mb_emit_ldarg (mb, 0);
9544 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9545 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9547 /* The result of MONO_ISINST can be:
9548 0) the cast is valid
9549 1) cast of unknown proxy type
9550 or an exception if the cast is is invalid
9553 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9555 /* get the real proxy from the transparent proxy*/
9557 mono_mb_emit_ldarg (mb, 0);
9558 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9559 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9562 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9565 mono_mb_patch_branch (mb, pos_was_ok);
9566 mono_mb_patch_branch (mb, pos_was_ok2);
9567 mono_mb_emit_ldarg (mb, 0);
9570 mono_mb_emit_byte (mb, CEE_RET);
9572 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9579 mono_marshal_get_proxy_cancast (MonoClass *klass)
9581 static MonoMethodSignature *isint_sig = NULL;
9584 int pos_failed, pos_end;
9586 MonoMethod *can_cast_to;
9587 MonoMethodDesc *desc;
9588 MonoMethodBuilder *mb;
9590 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9591 if ((res = mono_marshal_find_in_cache (cache, klass)))
9595 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9596 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9597 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9598 isint_sig->pinvoke = 0;
9601 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9602 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9605 mb->method->save_lmf = 1;
9607 /* get the real proxy from the transparent proxy*/
9608 mono_mb_emit_ldarg (mb, 0);
9609 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9610 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9612 /* get the reflection type from the type handle */
9613 mono_mb_emit_ptr (mb, &klass->byval_arg);
9614 mono_mb_emit_icall (mb, type_from_handle);
9616 mono_mb_emit_ldarg (mb, 0);
9618 /* make the call to CanCastTo (type, ob) */
9619 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9620 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9621 g_assert (can_cast_to);
9622 mono_method_desc_free (desc);
9623 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9625 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9627 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9628 mono_mb_emit_ptr (mb, &klass->byval_arg);
9629 mono_mb_emit_icall (mb, type_from_handle);
9630 mono_mb_emit_ldarg (mb, 0);
9632 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9633 emit_thread_interrupt_checkpoint (mb);
9635 mono_mb_emit_ldarg (mb, 0);
9636 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9640 mono_mb_patch_branch (mb, pos_failed);
9641 mono_mb_emit_byte (mb, CEE_LDNULL);
9645 mono_mb_patch_branch (mb, pos_end);
9646 mono_mb_emit_byte (mb, CEE_RET);
9648 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9655 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9658 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9659 klass = mono_class_from_mono_type (rtype->type);
9660 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9664 * mono_marshal_get_struct_to_ptr:
9667 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9670 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9672 MonoMethodBuilder *mb;
9673 static MonoMethod *stoptr = NULL;
9676 g_assert (klass != NULL);
9678 mono_marshal_load_type_info (klass);
9680 if (klass->marshal_info->str_to_ptr)
9681 return klass->marshal_info->str_to_ptr;
9684 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9687 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9689 if (klass->blittable) {
9690 mono_mb_emit_byte (mb, CEE_LDARG_1);
9691 mono_mb_emit_byte (mb, CEE_LDARG_0);
9692 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9693 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9694 mono_mb_emit_byte (mb, CEE_PREFIX1);
9695 mono_mb_emit_byte (mb, CEE_CPBLK);
9698 /* allocate local 0 (pointer) src_ptr */
9699 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9700 /* allocate local 1 (pointer) dst_ptr */
9701 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9702 /* allocate local 2 (boolean) delete_old */
9703 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9704 mono_mb_emit_byte (mb, CEE_LDARG_2);
9705 mono_mb_emit_stloc (mb, 2);
9707 /* initialize src_ptr to point to the start of object data */
9708 mono_mb_emit_byte (mb, CEE_LDARG_0);
9709 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9710 mono_mb_emit_stloc (mb, 0);
9712 /* initialize dst_ptr */
9713 mono_mb_emit_byte (mb, CEE_LDARG_1);
9714 mono_mb_emit_stloc (mb, 1);
9716 emit_struct_conv (mb, klass, FALSE);
9719 mono_mb_emit_byte (mb, CEE_RET);
9721 res = mono_mb_create_method (mb, signature_no_pinvoke (stoptr), 0);
9724 klass->marshal_info->str_to_ptr = res;
9729 * mono_marshal_get_ptr_to_struct:
9732 * generates IL code for PtrToStructure (IntPtr src, object structure)
9735 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9737 MonoMethodBuilder *mb;
9738 static MonoMethodSignature *ptostr = NULL;
9741 g_assert (klass != NULL);
9743 mono_marshal_load_type_info (klass);
9745 if (klass->marshal_info->ptr_to_str)
9746 return klass->marshal_info->ptr_to_str;
9749 MonoMethodSignature *sig;
9751 /* Create the signature corresponding to
9752 static void PtrToStructure (IntPtr ptr, object structure);
9753 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9754 sig = mono_create_icall_signature ("void ptr object");
9755 sig = signature_dup (mono_defaults.corlib, sig);
9757 mono_memory_barrier ();
9761 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9763 if (klass->blittable) {
9764 mono_mb_emit_byte (mb, CEE_LDARG_1);
9765 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9766 mono_mb_emit_byte (mb, CEE_LDARG_0);
9767 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9768 mono_mb_emit_byte (mb, CEE_PREFIX1);
9769 mono_mb_emit_byte (mb, CEE_CPBLK);
9772 /* allocate local 0 (pointer) src_ptr */
9773 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9774 /* allocate local 1 (pointer) dst_ptr */
9775 mono_mb_add_local (mb, &klass->this_arg);
9777 /* initialize src_ptr to point to the start of object data */
9778 mono_mb_emit_byte (mb, CEE_LDARG_0);
9779 mono_mb_emit_stloc (mb, 0);
9781 /* initialize dst_ptr */
9782 mono_mb_emit_byte (mb, CEE_LDARG_1);
9783 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9784 mono_mb_emit_stloc (mb, 1);
9786 emit_struct_conv (mb, klass, TRUE);
9789 mono_mb_emit_byte (mb, CEE_RET);
9791 res = mono_mb_create_method (mb, ptostr, 0);
9794 klass->marshal_info->ptr_to_str = res;
9799 * generates IL code for the synchronized wrapper: the generated method
9800 * calls METHOD while locking 'this' or the parent type.
9803 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9805 static MonoMethod *enter_method, *exit_method;
9806 MonoMethodSignature *sig;
9807 MonoExceptionClause *clause;
9808 MonoMethodHeader *header;
9809 MonoMethodBuilder *mb;
9812 int i, pos, this_local, ret_local = 0;
9816 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9819 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9820 if ((res = mono_marshal_find_in_cache (cache, method)))
9823 sig = signature_dup (method->klass->image, mono_method_signature (method));
9826 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9829 if (!MONO_TYPE_IS_VOID (sig->ret))
9830 ret_local = mono_mb_add_local (mb, sig->ret);
9832 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9833 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9834 /* This will throw the type load exception when the wrapper is compiled */
9835 mono_mb_emit_byte (mb, CEE_LDNULL);
9836 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9837 mono_mb_emit_byte (mb, CEE_POP);
9839 if (!MONO_TYPE_IS_VOID (sig->ret))
9840 mono_mb_emit_ldloc (mb, ret_local);
9841 mono_mb_emit_byte (mb, CEE_RET);
9843 res = mono_mb_create_and_cache (cache, method,
9844 mb, sig, sig->param_count + 16);
9851 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9853 mono_loader_lock ();
9854 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9855 mono_loader_unlock ();
9856 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9858 if (!enter_method) {
9859 MonoMethodDesc *desc;
9861 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9862 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9863 g_assert (enter_method);
9864 mono_method_desc_free (desc);
9865 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9866 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9867 g_assert (exit_method);
9868 mono_method_desc_free (desc);
9871 /* Push this or the type object */
9872 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9874 * GetTypeFromHandle isn't called as a managed method because it has
9875 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9876 * transformed into something else by the JIT.
9878 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9879 mono_mb_emit_icall (mb, type_from_handle);
9882 mono_mb_emit_ldarg (mb, 0);
9883 mono_mb_emit_stloc (mb, this_local);
9885 /* Call Monitor::Enter() */
9886 mono_mb_emit_ldloc (mb, this_local);
9887 mono_mb_emit_managed_call (mb, enter_method, NULL);
9889 clause->try_offset = mono_mb_get_label (mb);
9891 /* Call the method */
9893 mono_mb_emit_ldarg (mb, 0);
9894 for (i = 0; i < sig->param_count; i++)
9895 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9897 mono_mb_emit_managed_call (mb, method, NULL);
9899 if (!MONO_TYPE_IS_VOID (sig->ret))
9900 mono_mb_emit_stloc (mb, ret_local);
9902 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9904 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9905 clause->handler_offset = mono_mb_get_label (mb);
9907 /* Call Monitor::Exit() */
9908 mono_mb_emit_ldloc (mb, this_local);
9909 mono_mb_emit_managed_call (mb, exit_method, NULL);
9910 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9912 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9914 mono_mb_patch_branch (mb, pos);
9915 if (!MONO_TYPE_IS_VOID (sig->ret))
9916 mono_mb_emit_ldloc (mb, ret_local);
9917 mono_mb_emit_byte (mb, CEE_RET);
9919 res = mono_mb_create_and_cache (cache, method,
9920 mb, sig, sig->param_count + 16);
9923 header = ((MonoMethodNormal *)res)->header;
9924 header->num_clauses = 1;
9925 header->clauses = clause;
9932 * the returned method calls 'method' unboxing the this argument
9935 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9937 MonoMethodSignature *sig = mono_method_signature (method);
9939 MonoMethodBuilder *mb;
9943 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9944 if ((res = mono_marshal_find_in_cache (cache, method)))
9947 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9949 g_assert (sig->hasthis);
9951 mono_mb_emit_ldarg (mb, 0);
9952 mono_mb_emit_icon (mb, sizeof (MonoObject));
9953 mono_mb_emit_byte (mb, CEE_ADD);
9954 for (i = 0; i < sig->param_count; ++i)
9955 mono_mb_emit_ldarg (mb, i + 1);
9956 mono_mb_emit_managed_call (mb, method, NULL);
9957 mono_mb_emit_byte (mb, CEE_RET);
9959 res = mono_mb_create_and_cache (cache, method,
9960 mb, sig, sig->param_count + 16);
9963 /* 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)); */
9969 mono_marshal_get_stelemref ()
9971 static MonoMethod* ret = NULL;
9972 MonoMethodSignature *sig;
9973 MonoMethodBuilder *mb;
9975 guint32 b1, b2, b3, b4;
9978 int array_slot_addr;
9983 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9986 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9988 /* void stelemref (void* array, int idx, void* value) */
9989 sig->ret = &mono_defaults.void_class->byval_arg;
9990 sig->params [0] = &mono_defaults.object_class->byval_arg;
9991 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9992 sig->params [2] = &mono_defaults.object_class->byval_arg;
9994 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9995 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9996 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10000 <ldelema (bound check)>
10004 aklass = array->vtable->klass->element_class;
10005 vklass = value->vtable->klass;
10007 if (vklass->idepth < aklass->idepth)
10010 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10014 *array_slot_addr = value;
10018 if (mono_object_isinst (value, aklass))
10021 throw new ArrayTypeMismatchException ();
10024 /* ldelema (implicit bound check) */
10025 mono_mb_emit_ldarg (mb, 0);
10026 mono_mb_emit_ldarg (mb, 1);
10027 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10028 mono_mb_emit_stloc (mb, array_slot_addr);
10030 /* if (!value) goto do_store */
10031 mono_mb_emit_ldarg (mb, 2);
10032 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10034 /* aklass = array->vtable->klass->element_class */
10035 mono_mb_emit_ldarg (mb, 0);
10036 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10037 mono_mb_emit_byte (mb, CEE_LDIND_I);
10038 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10039 mono_mb_emit_byte (mb, CEE_LDIND_I);
10040 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10041 mono_mb_emit_byte (mb, CEE_LDIND_I);
10042 mono_mb_emit_stloc (mb, aklass);
10044 /* vklass = value->vtable->klass */
10045 mono_mb_emit_ldarg (mb, 2);
10046 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10047 mono_mb_emit_byte (mb, CEE_LDIND_I);
10048 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10049 mono_mb_emit_byte (mb, CEE_LDIND_I);
10050 mono_mb_emit_stloc (mb, vklass);
10052 /* if (vklass->idepth < aklass->idepth) goto failue */
10053 mono_mb_emit_ldloc (mb, vklass);
10054 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10055 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10057 mono_mb_emit_ldloc (mb, aklass);
10058 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10059 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10061 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10063 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10064 mono_mb_emit_ldloc (mb, vklass);
10065 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10066 mono_mb_emit_byte (mb, CEE_LDIND_I);
10068 mono_mb_emit_ldloc (mb, aklass);
10069 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10070 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10071 mono_mb_emit_icon (mb, 1);
10072 mono_mb_emit_byte (mb, CEE_SUB);
10073 mono_mb_emit_icon (mb, sizeof (void*));
10074 mono_mb_emit_byte (mb, CEE_MUL);
10075 mono_mb_emit_byte (mb, CEE_ADD);
10076 mono_mb_emit_byte (mb, CEE_LDIND_I);
10078 mono_mb_emit_ldloc (mb, aklass);
10080 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10082 copy_pos = mono_mb_get_label (mb);
10084 mono_mb_patch_branch (mb, b1);
10085 mono_mb_emit_ldloc (mb, array_slot_addr);
10086 mono_mb_emit_ldarg (mb, 2);
10087 mono_mb_emit_byte (mb, CEE_STIND_REF);
10089 mono_mb_emit_byte (mb, CEE_RET);
10092 mono_mb_patch_branch (mb, b2);
10093 mono_mb_patch_branch (mb, b3);
10095 mono_mb_emit_ldarg (mb, 2);
10096 mono_mb_emit_ldloc (mb, aklass);
10097 mono_mb_emit_icall (mb, mono_object_isinst);
10099 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10100 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10101 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10103 mono_mb_emit_byte (mb, CEE_RET);
10104 ret = mono_mb_create_method (mb, sig, 4);
10112 MonoMethod *method;
10115 /* LOCKING: vars accessed under the marshal lock */
10116 static ArrayElemAddr *elem_addr_cache = NULL;
10117 static int elem_addr_cache_size = 0;
10118 static int elem_addr_cache_next = 0;
10121 * mono_marshal_get_array_address:
10122 * @rank: rank of the array type
10123 * @elem_size: size in bytes of an element of an array.
10125 * Returns a MonoMethd that implements the code to get the address
10126 * of an element in a multi-dimenasional array of @rank dimensions.
10127 * The returned method takes an array as the first argument and then
10128 * @rank indexes for the @rank dimensions.
10131 mono_marshal_get_array_address (int rank, int elem_size)
10134 MonoMethodBuilder *mb;
10135 MonoMethodSignature *sig;
10136 int i, bounds, ind, realidx;
10137 int branch_pos, *branch_positions;
10141 mono_marshal_lock ();
10142 for (i = 0; i < elem_addr_cache_next; ++i) {
10143 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10144 ret = elem_addr_cache [i].method;
10148 mono_marshal_unlock ();
10152 branch_positions = g_new0 (int, rank);
10154 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10156 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10157 sig->ret = &mono_defaults.int_class->byval_arg;
10158 sig->params [0] = &mono_defaults.object_class->byval_arg;
10159 for (i = 0; i < rank; ++i) {
10160 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10163 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10165 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10166 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10167 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10169 /* bounds = array->bounds; */
10170 mono_mb_emit_ldarg (mb, 0);
10171 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10172 mono_mb_emit_byte (mb, CEE_LDIND_I);
10173 mono_mb_emit_stloc (mb, bounds);
10175 /* ind is the overall element index, realidx is the partial index in a single dimension */
10176 /* ind = idx0 - bounds [0].lower_bound */
10177 mono_mb_emit_ldarg (mb, 1);
10178 mono_mb_emit_ldloc (mb, bounds);
10179 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10180 mono_mb_emit_byte (mb, CEE_ADD);
10181 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10182 mono_mb_emit_byte (mb, CEE_SUB);
10183 mono_mb_emit_stloc (mb, ind);
10184 /* if (ind >= bounds [0].length) goto exeception; */
10185 mono_mb_emit_ldloc (mb, ind);
10186 mono_mb_emit_ldloc (mb, bounds);
10187 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10188 mono_mb_emit_byte (mb, CEE_ADD);
10189 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10190 /* note that we use unsigned comparison */
10191 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10193 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10194 * We could also decide to ignore the passed elem_size and get it
10195 * from the array object, to reduce the number of methods we generate:
10196 * the additional cost is 3 memory loads and a non-immediate mul.
10198 for (i = 1; i < rank; ++i) {
10199 /* realidx = idxi - bounds [i].lower_bound */
10200 mono_mb_emit_ldarg (mb, 1 + i);
10201 mono_mb_emit_ldloc (mb, bounds);
10202 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10203 mono_mb_emit_byte (mb, CEE_ADD);
10204 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10205 mono_mb_emit_byte (mb, CEE_SUB);
10206 mono_mb_emit_stloc (mb, realidx);
10207 /* if (realidx >= bounds [i].length) goto exeception; */
10208 mono_mb_emit_ldloc (mb, realidx);
10209 mono_mb_emit_ldloc (mb, bounds);
10210 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10211 mono_mb_emit_byte (mb, CEE_ADD);
10212 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10213 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10214 /* ind = ind * bounds [i].length + realidx */
10215 mono_mb_emit_ldloc (mb, ind);
10216 mono_mb_emit_ldloc (mb, bounds);
10217 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10218 mono_mb_emit_byte (mb, CEE_ADD);
10219 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10220 mono_mb_emit_byte (mb, CEE_MUL);
10221 mono_mb_emit_ldloc (mb, realidx);
10222 mono_mb_emit_byte (mb, CEE_ADD);
10223 mono_mb_emit_stloc (mb, ind);
10226 /* return array->vector + ind * element_size */
10227 mono_mb_emit_ldarg (mb, 0);
10228 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10229 mono_mb_emit_ldloc (mb, ind);
10230 mono_mb_emit_icon (mb, elem_size);
10231 mono_mb_emit_byte (mb, CEE_MUL);
10232 mono_mb_emit_byte (mb, CEE_ADD);
10233 mono_mb_emit_byte (mb, CEE_RET);
10235 /* patch the branches to get here and throw */
10236 for (i = 1; i < rank; ++i) {
10237 mono_mb_patch_branch (mb, branch_positions [i]);
10239 mono_mb_patch_branch (mb, branch_pos);
10240 /* throw exception */
10241 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10243 g_free (branch_positions);
10244 ret = mono_mb_create_method (mb, sig, 4);
10247 /* cache the result */
10249 mono_marshal_lock ();
10250 for (i = 0; i < elem_addr_cache_next; ++i) {
10251 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10252 /* FIXME: free ret */
10253 ret = elem_addr_cache [i].method;
10259 if (elem_addr_cache_next >= elem_addr_cache_size) {
10260 int new_size = elem_addr_cache_size + 4;
10261 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10262 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10263 g_free (elem_addr_cache);
10264 elem_addr_cache = new_array;
10265 elem_addr_cache_size = new_size;
10267 elem_addr_cache [elem_addr_cache_next].rank = rank;
10268 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10269 elem_addr_cache [elem_addr_cache_next].method = ret;
10271 mono_marshal_unlock ();
10276 mono_marshal_get_write_barrier (void)
10278 static MonoMethod* ret = NULL;
10279 MonoMethodSignature *sig;
10280 MonoMethodBuilder *mb;
10286 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
10288 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10290 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
10291 sig->ret = &mono_defaults.void_class->byval_arg;
10292 sig->params [0] = &mono_defaults.object_class->this_arg;
10293 sig->params [1] = &mono_defaults.object_class->byval_arg;
10295 /* just the store right now: add an hook for the GC to use, maybe something
10296 * that can be used for stelemref as well
10297 * We need a write barrier variant to be used with struct copies as well, though
10298 * there are also other approaches possible, like writing a wrapper specific to
10299 * the struct or to the reference pattern in the struct...
10300 * Depending on the GC, we may want variants that take the object we store to
10301 * when it is available.
10303 mono_mb_emit_ldarg (mb, 0);
10304 mono_mb_emit_ldarg (mb, 1);
10305 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
10306 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
10308 mono_mb_emit_byte (mb, CEE_RET);
10310 ret = mono_mb_create_method (mb, sig, max_stack);
10316 mono_marshal_alloc (gulong size)
10320 #ifdef PLATFORM_WIN32
10321 res = CoTaskMemAlloc (size);
10323 res = g_try_malloc ((gulong)size);
10325 mono_gc_out_of_memory ((gulong)size);
10331 mono_marshal_free (gpointer ptr)
10333 #ifdef PLATFORM_WIN32
10334 CoTaskMemFree (ptr);
10341 mono_marshal_free_array (gpointer *ptr, int size)
10348 for (i = 0; i < size; i++)
10354 mono_marshal_string_to_utf16 (MonoString *s)
10356 return s ? mono_string_chars (s) : NULL;
10360 mono_marshal_string_to_utf16_copy (MonoString *s)
10365 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10366 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10367 res [mono_string_length (s)] = 0;
10373 * mono_marshal_set_last_error:
10375 * This function is invoked to set the last error value from a P/Invoke call
10376 * which has SetLastError set.
10379 mono_marshal_set_last_error (void)
10382 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10384 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10389 mono_marshal_set_last_error_windows (int error)
10392 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10397 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10398 gpointer dest, gint32 length)
10403 MONO_ARCH_SAVE_REGS;
10405 MONO_CHECK_ARG_NULL (src);
10406 MONO_CHECK_ARG_NULL (dest);
10408 if (src->obj.vtable->klass->rank != 1)
10409 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10410 if (start_index < 0)
10411 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10413 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10414 if (start_index + length > mono_array_length (src))
10415 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10417 element_size = mono_array_element_size (src->obj.vtable->klass);
10419 /* no references should be involved */
10420 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10422 memcpy (dest, source_addr, length * element_size);
10426 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10427 MonoArray *dest, gint32 length)
10432 MONO_ARCH_SAVE_REGS;
10434 MONO_CHECK_ARG_NULL (src);
10435 MONO_CHECK_ARG_NULL (dest);
10437 if (dest->obj.vtable->klass->rank != 1)
10438 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10439 if (start_index < 0)
10440 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10442 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10443 if (start_index + length > mono_array_length (dest))
10444 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10446 element_size = mono_array_element_size (dest->obj.vtable->klass);
10448 /* no references should be involved */
10449 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10451 memcpy (dest_addr, src, length * element_size);
10454 #if NO_UNALIGNED_ACCESS
10455 #define RETURN_UNALIGNED(type, addr) \
10458 memcpy(&val, p + offset, sizeof(val)); \
10461 #define WRITE_UNALIGNED(type, addr, val) \
10462 memcpy(addr, &val, sizeof(type))
10464 #define RETURN_UNALIGNED(type, addr) \
10465 return *(type*)(p + offset);
10466 #define WRITE_UNALIGNED(type, addr, val) \
10467 (*(type *)(addr) = (val))
10471 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10475 MONO_ARCH_SAVE_REGS;
10477 RETURN_UNALIGNED(gpointer, p + offset);
10481 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10485 MONO_ARCH_SAVE_REGS;
10487 return *(unsigned char*)(p + offset);
10491 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10495 MONO_ARCH_SAVE_REGS;
10497 RETURN_UNALIGNED(gint16, p + offset);
10501 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10505 MONO_ARCH_SAVE_REGS;
10507 RETURN_UNALIGNED(gint32, p + offset);
10511 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10515 MONO_ARCH_SAVE_REGS;
10517 RETURN_UNALIGNED(gint64, p + offset);
10521 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10525 MONO_ARCH_SAVE_REGS;
10527 *(unsigned char*)(p + offset) = val;
10531 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10535 MONO_ARCH_SAVE_REGS;
10537 WRITE_UNALIGNED(gpointer, p + offset, val);
10541 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10545 MONO_ARCH_SAVE_REGS;
10547 WRITE_UNALIGNED(gint16, p + offset, val);
10551 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10555 MONO_ARCH_SAVE_REGS;
10557 WRITE_UNALIGNED(gint32, p + offset, val);
10561 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10565 MONO_ARCH_SAVE_REGS;
10567 WRITE_UNALIGNED(gint64, p + offset, val);
10571 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10573 MONO_ARCH_SAVE_REGS;
10578 return mono_string_new (mono_domain_get (), ptr);
10582 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10584 MONO_ARCH_SAVE_REGS;
10587 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10588 g_assert_not_reached ();
10591 return mono_string_new_len (mono_domain_get (), ptr, len);
10596 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10598 MonoDomain *domain = mono_domain_get ();
10602 MONO_ARCH_SAVE_REGS;
10610 return mono_string_new_utf16 (domain, ptr, len);
10614 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10616 MonoDomain *domain = mono_domain_get ();
10618 MONO_ARCH_SAVE_REGS;
10621 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10622 g_assert_not_reached ();
10625 return mono_string_new_utf16 (domain, ptr, len);
10630 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10632 MONO_ARCH_SAVE_REGS;
10634 return mono_string_from_bstr(ptr);
10638 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10640 MONO_ARCH_SAVE_REGS;
10642 return mono_string_to_bstr(ptr);
10647 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10648 int (STDCALL *AddRef)(gpointer pUnk);
10649 int (STDCALL *Release)(gpointer pUnk);
10653 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10655 MONO_ARCH_SAVE_REGS;
10657 mono_free_bstr (ptr);
10661 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10664 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10668 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10671 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10675 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10678 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10681 #ifndef DISABLE_COM
10684 cominterop_get_idispatch_for_object (MonoObject* object)
10689 if (cominterop_object_is_rcw (object)) {
10690 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10691 mono_defaults.idispatch_class, TRUE);
10694 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10701 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10703 #ifndef DISABLE_COM
10707 if (cominterop_object_is_rcw (object)) {
10708 MonoClass *klass = NULL;
10709 MonoRealProxy* real_proxy = NULL;
10712 klass = mono_object_class (object);
10713 if (klass != mono_defaults.transparent_proxy_class) {
10714 g_assert_not_reached ();
10718 real_proxy = ((MonoTransparentProxy*)object)->rp;
10720 g_assert_not_reached ();
10724 klass = mono_object_class (real_proxy);
10725 if (klass != mono_defaults.com_interop_proxy_class) {
10726 g_assert_not_reached ();
10730 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10731 g_assert_not_reached ();
10735 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10738 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10741 g_assert_not_reached ();
10746 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10748 #ifndef DISABLE_COM
10749 MonoObject* object = NULL;
10754 /* see if it is a CCW */
10755 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10759 g_assert_not_reached ();
10764 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10766 #ifndef DISABLE_COM
10767 return cominterop_get_idispatch_for_object (object);
10769 g_assert_not_reached ();
10774 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10776 #ifndef DISABLE_COM
10777 MonoClass* klass = NULL;
10780 g_assert (type->type);
10781 klass = mono_type_get_class (type->type);
10783 itf = cominterop_get_ccw (object, klass);
10787 g_assert_not_reached ();
10793 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10795 #ifndef DISABLE_COM
10796 return (MonoBoolean)cominterop_object_is_rcw (object);
10798 g_assert_not_reached ();
10803 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10805 #ifndef DISABLE_COM
10806 MonoComInteropProxy* proxy = NULL;
10807 gint32 ref_count = 0;
10810 g_assert (cominterop_object_is_rcw (object));
10812 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10815 ref_count = InterlockedDecrement (&proxy->ref_count);
10816 g_assert (ref_count >= 0);
10818 if (ref_count == 0)
10819 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10823 g_assert_not_reached ();
10828 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10830 MONO_ARCH_SAVE_REGS;
10832 #ifndef DISABLE_COM
10833 return cominterop_get_com_slot_for_method (m->method);
10835 g_assert_not_reached ();
10840 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10842 MONO_ARCH_SAVE_REGS;
10844 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10848 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10854 MONO_ARCH_SAVE_REGS;
10856 MONO_CHECK_ARG_NULL (rtype);
10858 type = rtype->type;
10859 klass = mono_class_from_mono_type (type);
10860 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10862 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10864 MonoException *exc;
10866 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10867 exc = mono_get_exception_argument ("t", msg);
10869 mono_raise_exception (exc);
10873 return mono_class_native_size (klass, NULL);
10877 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10879 MonoMethod *method;
10882 MONO_ARCH_SAVE_REGS;
10884 MONO_CHECK_ARG_NULL (obj);
10885 MONO_CHECK_ARG_NULL (dst);
10887 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10891 pa [2] = &delete_old;
10893 mono_runtime_invoke (method, NULL, pa, NULL);
10897 ptr_to_structure (gpointer src, MonoObject *dst)
10899 MonoMethod *method;
10902 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10907 mono_runtime_invoke (method, NULL, pa, NULL);
10911 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10915 MONO_ARCH_SAVE_REGS;
10917 MONO_CHECK_ARG_NULL (src);
10918 MONO_CHECK_ARG_NULL (dst);
10920 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10922 if (t->type == MONO_TYPE_VALUETYPE) {
10923 MonoException *exc;
10926 tmp = g_strdup_printf ("Destination is a boxed value type.");
10927 exc = mono_get_exception_argument ("dst", tmp);
10930 mono_raise_exception (exc);
10934 ptr_to_structure (src, dst);
10938 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10940 MonoDomain *domain = mono_domain_get ();
10943 MONO_ARCH_SAVE_REGS;
10945 MONO_CHECK_ARG_NULL (src);
10946 MONO_CHECK_ARG_NULL (type);
10948 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10950 ptr_to_structure (src, res);
10956 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10958 MonoMarshalType *info;
10961 int match_index = -1;
10963 MONO_ARCH_SAVE_REGS;
10965 MONO_CHECK_ARG_NULL (type);
10966 MONO_CHECK_ARG_NULL (field_name);
10968 fname = mono_string_to_utf8 (field_name);
10969 klass = mono_class_from_mono_type (type->type);
10971 while (klass && match_index == -1) {
10972 MonoClassField* field;
10974 gpointer iter = NULL;
10975 while ((field = mono_class_get_fields (klass, &iter))) {
10976 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10978 if (!strcmp (fname, mono_field_get_name (field))) {
10985 if (match_index == -1)
10986 klass = klass->parent;
10991 if(match_index == -1) {
10992 MonoException* exc;
10995 /* Get back original class instance */
10996 klass = mono_class_from_mono_type (type->type);
10998 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10999 exc = mono_get_exception_argument ("fieldName", tmp);
11002 mono_raise_exception ((MonoException*)exc);
11005 info = mono_marshal_load_type_info (klass);
11006 return info->fields [match_index].offset;
11010 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11012 #ifdef PLATFORM_WIN32
11015 tres = mono_string_to_utf8 (string);
11019 len = strlen (tres) + 1;
11020 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11021 memcpy (ret, tres, len);
11026 return mono_string_to_utf8 (string);
11031 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11033 MONO_ARCH_SAVE_REGS;
11035 if (string == NULL)
11038 #ifdef PLATFORM_WIN32
11039 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11040 ((mono_string_length (string) + 1) * 2);
11042 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11044 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11045 res [mono_string_length (string)] = 0;
11051 mono_struct_delete_old (MonoClass *klass, char *ptr)
11053 MonoMarshalType *info;
11056 info = mono_marshal_load_type_info (klass);
11058 for (i = 0; i < info->num_fields; i++) {
11059 MonoMarshalNative ntype;
11060 MonoMarshalConv conv;
11061 MonoType *ftype = info->fields [i].field->type;
11064 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11067 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11068 klass->unicode, &conv);
11070 cpos = ptr + info->fields [i].offset;
11073 case MONO_MARSHAL_CONV_NONE:
11074 if (MONO_TYPE_ISSTRUCT (ftype)) {
11075 mono_struct_delete_old (ftype->data.klass, cpos);
11079 case MONO_MARSHAL_CONV_STR_LPWSTR:
11080 /* We assume this field points inside a MonoString */
11082 case MONO_MARSHAL_CONV_STR_LPTSTR:
11083 #ifdef PLATFORM_WIN32
11084 /* We assume this field points inside a MonoString
11088 case MONO_MARSHAL_CONV_STR_LPSTR:
11089 case MONO_MARSHAL_CONV_STR_BSTR:
11090 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11091 case MONO_MARSHAL_CONV_STR_TBSTR:
11092 mono_marshal_free (*(gpointer *)cpos);
11102 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11106 MONO_ARCH_SAVE_REGS;
11108 MONO_CHECK_ARG_NULL (src);
11109 MONO_CHECK_ARG_NULL (type);
11111 klass = mono_class_from_mono_type (type->type);
11113 mono_struct_delete_old (klass, (char *)src);
11117 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11121 MONO_ARCH_SAVE_REGS;
11123 if ((gulong)size == 0)
11124 /* This returns a valid pointer for size 0 on MS.NET */
11127 #ifdef PLATFORM_WIN32
11128 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11130 res = g_try_malloc ((gulong)size);
11133 mono_gc_out_of_memory ((gulong)size);
11139 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11144 mono_gc_out_of_memory ((gulong)size);
11148 #ifdef PLATFORM_WIN32
11149 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11151 res = g_try_realloc (ptr, (gulong)size);
11154 mono_gc_out_of_memory ((gulong)size);
11160 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11162 MONO_ARCH_SAVE_REGS;
11164 #ifdef PLATFORM_WIN32
11172 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11174 MONO_ARCH_SAVE_REGS;
11176 #ifdef PLATFORM_WIN32
11177 return CoTaskMemAlloc (size);
11179 return g_try_malloc ((gulong)size);
11184 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11186 MONO_ARCH_SAVE_REGS;
11188 #ifdef PLATFORM_WIN32
11189 CoTaskMemFree (ptr);
11196 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11198 MONO_ARCH_SAVE_REGS;
11200 #ifdef PLATFORM_WIN32
11201 return CoTaskMemRealloc (ptr, size);
11203 return g_try_realloc (ptr, (gulong)size);
11208 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11210 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11214 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11216 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
11219 /* Only used for COM RCWs */
11221 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
11224 MonoDomain *domain;
11227 MONO_ARCH_SAVE_REGS;
11229 domain = mono_object_domain (type);
11230 klass = mono_class_from_mono_type (type->type);
11232 /* call mono_object_new_alloc_specific instead of mono_object_new
11233 * because we want to actually create object. mono_object_new checks
11234 * to see if type is import and creates transparent proxy. this method
11235 * is called by the corresponding real proxy to create the real RCW.
11236 * Constructor does not need to be called. Will be called later.
11238 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
11243 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
11245 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
11250 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
11253 if (obj->itf_hash) {
11254 guint32 gchandle = 0;
11255 mono_cominterop_lock ();
11256 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
11258 mono_gchandle_free (gchandle);
11259 g_hash_table_remove (rcw_hash, obj->iunknown);
11262 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
11263 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
11264 obj->itf_hash = obj->iunknown = NULL;
11265 mono_cominterop_unlock ();
11270 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
11272 #ifndef DISABLE_COM
11273 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
11275 g_assert_not_reached ();
11280 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
11282 #ifndef DISABLE_COM
11283 guint32 gchandle = 0;
11285 mono_cominterop_lock ();
11286 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11287 mono_cominterop_unlock ();
11290 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
11292 mono_cominterop_lock ();
11293 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
11294 mono_cominterop_unlock ();
11296 g_assert_not_reached ();
11300 MonoComInteropProxy*
11301 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
11303 #ifndef DISABLE_COM
11304 MonoComInteropProxy* proxy = NULL;
11305 guint32 gchandle = 0;
11307 mono_cominterop_lock ();
11309 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
11310 mono_cominterop_unlock ();
11312 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11313 /* proxy is null means we need to free up old RCW */
11315 mono_gchandle_free (gchandle);
11316 g_hash_table_remove (rcw_hash, pUnk);
11321 g_assert_not_reached ();
11326 * mono_marshal_is_loading_type_info:
11328 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11332 mono_marshal_is_loading_type_info (MonoClass *klass)
11334 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
11336 return g_slist_find (loads_list, klass) != NULL;
11340 * mono_marshal_load_type_info:
11342 * Initialize klass->marshal_info using information from metadata. This function can
11343 * recursively call itself, and the caller is responsible to avoid that by calling
11344 * mono_marshal_is_loading_type_info () beforehand.
11346 * LOCKING: Acquires the loader lock.
11349 mono_marshal_load_type_info (MonoClass* klass)
11352 guint32 native_size = 0, min_align = 1;
11353 MonoMarshalType *info;
11354 MonoClassField* field;
11357 GSList *loads_list;
11359 g_assert (klass != NULL);
11361 if (klass->marshal_info)
11362 return klass->marshal_info;
11364 if (!klass->inited)
11365 mono_class_init (klass);
11367 mono_loader_lock ();
11369 if (klass->marshal_info) {
11370 mono_loader_unlock ();
11371 return klass->marshal_info;
11375 * This function can recursively call itself, so we keep the list of classes which are
11376 * under initialization in a TLS list.
11378 g_assert (!mono_marshal_is_loading_type_info (klass));
11379 loads_list = TlsGetValue (load_type_info_tls_id);
11380 loads_list = g_slist_prepend (loads_list, klass);
11381 TlsSetValue (load_type_info_tls_id, loads_list);
11384 while ((field = mono_class_get_fields (klass, &iter))) {
11385 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11387 if (mono_field_is_deleted (field))
11392 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11394 /* The mempool is protected by the loader lock */
11395 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11396 info->num_fields = count;
11398 /* Try to find a size for this type in metadata */
11399 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11401 if (klass->parent) {
11402 int parent_size = mono_class_native_size (klass->parent, NULL);
11404 /* Add parent size to real size */
11405 native_size += parent_size;
11406 info->native_size = parent_size;
11411 while ((field = mono_class_get_fields (klass, &iter))) {
11415 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11418 if (mono_field_is_deleted (field))
11420 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11421 mono_metadata_field_info_with_mempool (klass->image->mempool, klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11422 NULL, NULL, &info->fields [j].mspec);
11424 info->fields [j].field = field;
11426 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11427 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11428 /* This field is a hack inserted by MCS to empty structures */
11433 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11434 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11435 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11436 &align, TRUE, klass->unicode);
11437 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11438 min_align = MAX (align, min_align);
11439 info->fields [j].offset = info->native_size;
11440 info->fields [j].offset += align - 1;
11441 info->fields [j].offset &= ~(align - 1);
11442 info->native_size = info->fields [j].offset + size;
11444 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11445 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11446 &align, TRUE, klass->unicode);
11447 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11448 min_align = MAX (align, min_align);
11449 info->fields [j].offset = field->offset - sizeof (MonoObject);
11450 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11456 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11457 info->native_size = MAX (native_size, info->native_size);
11460 if (info->native_size & (min_align - 1)) {
11461 info->native_size += min_align - 1;
11462 info->native_size &= ~(min_align - 1);
11465 /* Update the class's blittable info, if the layouts don't match */
11466 if (info->native_size != mono_class_value_size (klass, NULL))
11467 klass->blittable = FALSE;
11469 /* If this is an array type, ensure that we have element info */
11470 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11471 mono_marshal_load_type_info (klass->element_class);
11474 loads_list = TlsGetValue (load_type_info_tls_id);
11475 loads_list = g_slist_remove (loads_list, klass);
11476 TlsSetValue (load_type_info_tls_id, loads_list);
11478 /*We do double-checking locking on marshal_info */
11479 mono_memory_barrier ();
11481 klass->marshal_info = info;
11483 mono_loader_unlock ();
11485 return klass->marshal_info;
11489 * mono_class_native_size:
11492 * Returns: the native size of an object instance (when marshaled
11493 * to unmanaged code)
11496 mono_class_native_size (MonoClass *klass, guint32 *align)
11498 if (!klass->marshal_info) {
11499 if (mono_marshal_is_loading_type_info (klass)) {
11504 mono_marshal_load_type_info (klass);
11509 *align = klass->min_align;
11511 return klass->marshal_info->native_size;
11515 * mono_type_native_stack_size:
11516 * @t: the type to return the size it uses on the stack
11518 * Returns: the number of bytes required to hold an instance of this
11519 * type on the native stack
11522 mono_type_native_stack_size (MonoType *t, guint32 *align)
11526 g_assert (t != NULL);
11537 case MONO_TYPE_BOOLEAN:
11538 case MONO_TYPE_CHAR:
11547 case MONO_TYPE_STRING:
11548 case MONO_TYPE_OBJECT:
11549 case MONO_TYPE_CLASS:
11550 case MONO_TYPE_SZARRAY:
11551 case MONO_TYPE_PTR:
11552 case MONO_TYPE_FNPTR:
11553 case MONO_TYPE_ARRAY:
11564 case MONO_TYPE_TYPEDBYREF:
11565 case MONO_TYPE_VALUETYPE: {
11568 if (t->data.klass->enumtype)
11569 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
11571 size = mono_class_native_size (t->data.klass, align);
11572 *align = *align + 3;
11582 g_error ("type 0x%02x unknown", t->type);
11587 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11588 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11589 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11590 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11593 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11594 gboolean as_field, gboolean unicode)
11596 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11599 switch (native_type) {
11600 case MONO_NATIVE_BOOLEAN:
11603 case MONO_NATIVE_I1:
11604 case MONO_NATIVE_U1:
11607 case MONO_NATIVE_I2:
11608 case MONO_NATIVE_U2:
11609 case MONO_NATIVE_VARIANTBOOL:
11612 case MONO_NATIVE_I4:
11613 case MONO_NATIVE_U4:
11614 case MONO_NATIVE_ERROR:
11617 case MONO_NATIVE_I8:
11618 case MONO_NATIVE_U8:
11619 *align = ALIGNMENT(guint64);
11621 case MONO_NATIVE_R4:
11624 case MONO_NATIVE_R8:
11625 *align = ALIGNMENT(double);
11627 case MONO_NATIVE_INT:
11628 case MONO_NATIVE_UINT:
11629 case MONO_NATIVE_LPSTR:
11630 case MONO_NATIVE_LPWSTR:
11631 case MONO_NATIVE_LPTSTR:
11632 case MONO_NATIVE_BSTR:
11633 case MONO_NATIVE_ANSIBSTR:
11634 case MONO_NATIVE_TBSTR:
11635 case MONO_NATIVE_LPARRAY:
11636 case MONO_NATIVE_SAFEARRAY:
11637 case MONO_NATIVE_IUNKNOWN:
11638 case MONO_NATIVE_IDISPATCH:
11639 case MONO_NATIVE_INTERFACE:
11640 case MONO_NATIVE_ASANY:
11641 case MONO_NATIVE_FUNC:
11642 case MONO_NATIVE_LPSTRUCT:
11643 *align = ALIGNMENT(gpointer);
11644 return sizeof (gpointer);
11645 case MONO_NATIVE_STRUCT:
11646 klass = mono_class_from_mono_type (type);
11647 if (klass == mono_defaults.object_class &&
11648 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11652 return mono_class_native_size (klass, align);
11653 case MONO_NATIVE_BYVALTSTR: {
11654 int esize = unicode ? 2: 1;
11657 return mspec->data.array_data.num_elem * esize;
11659 case MONO_NATIVE_BYVALARRAY: {
11660 // FIXME: Have to consider ArraySubType
11662 klass = mono_class_from_mono_type (type);
11663 if (klass->element_class == mono_defaults.char_class) {
11664 esize = unicode ? 2 : 1;
11667 esize = mono_class_native_size (klass->element_class, align);
11670 return mspec->data.array_data.num_elem * esize;
11672 case MONO_NATIVE_CUSTOM:
11673 *align = sizeof (gpointer);
11674 return sizeof (gpointer);
11676 case MONO_NATIVE_CURRENCY:
11677 case MONO_NATIVE_VBBYREFSTR:
11679 g_error ("native type %02x not implemented", native_type);
11682 g_assert_not_reached ();
11687 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11695 t = &o->vtable->klass->byval_arg;
11699 case MONO_TYPE_PTR:
11702 case MONO_TYPE_BOOLEAN:
11705 case MONO_TYPE_CHAR:
11710 return mono_object_unbox (o);
11712 case MONO_TYPE_STRING:
11713 switch (string_encoding) {
11714 case MONO_NATIVE_LPWSTR:
11715 return mono_string_to_utf16 ((MonoString*)o);
11717 case MONO_NATIVE_LPSTR:
11718 return mono_string_to_lpstr ((MonoString*)o);
11721 g_warning ("marshaling conversion %d not implemented", string_encoding);
11722 g_assert_not_reached ();
11725 case MONO_TYPE_CLASS:
11726 case MONO_TYPE_VALUETYPE: {
11727 MonoMethod *method;
11730 MonoBoolean delete_old = FALSE;
11732 klass = t->data.klass;
11734 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11737 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11738 klass->blittable || klass->enumtype))
11739 return mono_object_unbox (o);
11741 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11743 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11744 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11748 pa [2] = &delete_old;
11750 mono_runtime_invoke (method, NULL, pa, NULL);
11757 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11763 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11771 t = &o->vtable->klass->byval_arg;
11773 case MONO_TYPE_STRING:
11774 switch (string_encoding) {
11775 case MONO_NATIVE_LPWSTR:
11776 case MONO_NATIVE_LPSTR:
11777 mono_marshal_free (ptr);
11780 g_warning ("marshaling conversion %d not implemented", string_encoding);
11781 g_assert_not_reached ();
11784 case MONO_TYPE_CLASS:
11785 case MONO_TYPE_VALUETYPE: {
11786 klass = t->data.klass;
11788 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11789 klass->blittable || klass->enumtype))
11792 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11793 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11799 mono_runtime_invoke (method, NULL, pa, NULL);
11802 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11803 mono_struct_delete_old (klass, ptr);
11806 mono_marshal_free (ptr);
11815 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11817 MonoMethodSignature *sig, *csig;
11818 MonoMethodBuilder *mb;
11822 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11823 mb->method->slot = -1;
11825 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11826 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11828 sig = mono_method_signature (method);
11829 csig = signature_dup (method->klass->image, sig);
11830 csig->generic_param_count = 0;
11832 mono_mb_emit_ldarg (mb, 0);
11833 for (i = 0; i < csig->param_count; i++)
11834 mono_mb_emit_ldarg (mb, i + 1);
11835 mono_mb_emit_managed_call (mb, method, NULL);
11836 mono_mb_emit_byte (mb, CEE_RET);
11838 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11840 /* We can corlib internal methods */
11841 res->skip_visibility = TRUE;
11849 * The mono_win32_compat_* functions are implementations of inline
11850 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11851 * although not exported by kernel32.
11853 * We map the appropiate kernel32 entries to these functions using
11854 * dllmaps declared in the global etc/mono/config.
11858 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11860 if (!dest || !source)
11863 memcpy (dest, source, length);
11867 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11869 memset (dest, fill, length);
11873 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11875 if (!dest || !source)
11878 memmove (dest, source, length);
11882 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11884 memset (dest, 0, length);
11887 /* Put COM Interop related stuff here */
11889 #ifndef DISABLE_COM
11892 * cominterop_get_ccw_object:
11893 * @ccw_entry: a pointer to the CCWEntry
11894 * @verify: verify ccw_entry is in fact a ccw
11896 * Returns: the corresponding object for the CCW
11899 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11901 MonoCCW *ccw = NULL;
11903 /* no CCW's exist yet */
11904 if (!ccw_interface_hash)
11908 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11911 ccw = ccw_entry->ccw;
11915 return mono_gchandle_get_target (ccw->gc_handle);
11921 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11923 MonoMethodSignature *sig, *csig;
11924 sig = mono_method_signature (method);
11925 /* we copy the signature, so that we can modify it */
11926 /* FIXME: which to use? */
11927 csig = signature_dup (method->klass->image, sig);
11928 /* csig = mono_metadata_signature_dup (sig); */
11930 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11931 #ifdef PLATFORM_WIN32
11932 csig->call_convention = MONO_CALL_STDCALL;
11934 csig->call_convention = MONO_CALL_C;
11939 m->image = method->klass->image;
11947 * cominterop_get_ccw:
11948 * @object: a pointer to the object
11949 * @itf: interface type needed
11951 * Returns: a value indicating if the object is a
11952 * Runtime Callable Wrapper (RCW) for a COM object
11955 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11958 MonoCCW *ccw = NULL;
11959 MonoCCWInterface* ccw_entry = NULL;
11960 gpointer *vtable = NULL;
11961 static gpointer iunknown[3] = {NULL, NULL, NULL};
11962 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11963 MonoClass* iface = NULL;
11964 MonoClass* klass = NULL;
11965 EmitMarshalContext m;
11966 int start_slot = 3;
11967 int method_count = 0;
11968 GList *ccw_list, *ccw_list_item;
11969 MonoCustomAttrInfo *cinfo = NULL;
11974 klass = mono_object_get_class (object);
11977 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11978 if (!ccw_interface_hash)
11979 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11981 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11983 ccw_list_item = ccw_list;
11984 while (ccw_list_item) {
11985 MonoCCW* ccw_iter = ccw_list_item->data;
11986 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11990 ccw_list_item = g_list_next(ccw_list_item);
11993 if (!iunknown [0]) {
11994 iunknown [0] = cominterop_ccw_queryinterface;
11995 iunknown [1] = cominterop_ccw_addref;
11996 iunknown [2] = cominterop_ccw_release;
11999 if (!idispatch [0]) {
12000 idispatch [0] = cominterop_ccw_get_type_info_count;
12001 idispatch [1] = cominterop_ccw_get_type_info;
12002 idispatch [2] = cominterop_ccw_get_ids_of_names;
12003 idispatch [3] = cominterop_ccw_invoke;
12007 ccw = g_new0 (MonoCCW, 1);
12008 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12009 ccw->ref_count = 0;
12010 /* just alloc a weak handle until we are addref'd*/
12011 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
12014 ccw_list = g_list_alloc ();
12015 ccw_list->data = ccw;
12018 ccw_list = g_list_append (ccw_list, ccw);
12019 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
12020 /* register for finalization to clean up ccw */
12021 mono_object_register_finalizer (object);
12024 cinfo = mono_custom_attrs_from_class (itf);
12026 static MonoClass* coclass_attribute = NULL;
12027 if (!coclass_attribute)
12028 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
12029 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
12030 g_assert(itf->interface_count && itf->interfaces[0]);
12031 itf = itf->interfaces[0];
12033 if (!cinfo->cached)
12034 mono_custom_attrs_free (cinfo);
12038 if (iface == mono_defaults.iunknown_class) {
12041 else if (iface == mono_defaults.idispatch_class) {
12045 method_count += iface->method.count;
12046 start_slot = cominterop_get_com_slot_begin (iface);
12050 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
12053 int vtable_index = method_count-1+start_slot;
12054 mono_loader_lock ();
12055 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
12056 mono_loader_unlock ();
12057 memcpy (vtable, iunknown, sizeof (iunknown));
12058 if (start_slot == 7)
12059 memcpy (vtable+3, idispatch, sizeof (idispatch));
12062 for (i = iface->method.count-1; i >= 0;i--) {
12063 int param_index = 0;
12064 MonoMethodBuilder *mb;
12065 MonoMarshalSpec ** mspecs;
12066 MonoMethod *wrapper_method, *adjust_method;
12067 MonoMethod *method = iface->methods [i];
12068 MonoMethodSignature* sig_adjusted;
12069 MonoMethodSignature* sig = mono_method_signature (method);
12070 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12073 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12074 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
12075 sig_adjusted = mono_method_signature (adjust_method);
12077 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
12078 mono_method_get_marshal_info (method, mspecs);
12081 /* move managed args up one */
12082 for (param_index = sig->param_count; param_index >= 1; param_index--) {
12083 int mspec_index = param_index+1;
12084 mspecs [mspec_index] = mspecs [param_index];
12086 if (mspecs[mspec_index] == NULL) {
12087 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
12088 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12089 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
12091 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
12092 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12093 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
12095 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
12096 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12097 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
12102 /* first arg is IntPtr for interface */
12105 /* move return spec to last param */
12106 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
12107 if (mspecs [0] == NULL) {
12108 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
12109 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12110 mspecs[0]->native = MONO_NATIVE_STRUCT;
12112 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
12113 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12114 mspecs[0]->native = MONO_NATIVE_BSTR;
12116 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
12117 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12118 mspecs[0]->native = MONO_NATIVE_INTERFACE;
12122 mspecs [sig_adjusted->param_count] = mspecs [0];
12126 cominterop_setup_marshal_context (&m, adjust_method);
12128 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
12129 mono_loader_lock ();
12130 mono_marshal_lock ();
12131 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
12132 mono_marshal_unlock ();
12133 mono_loader_unlock ();
12135 /* skip visiblity since we call internal methods */
12136 wrapper_method->skip_visibility = TRUE;
12138 vtable [vtable_index--] = mono_compile_method (wrapper_method);
12141 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
12142 if (mspecs [param_index])
12143 mono_metadata_free_marshal_spec (mspecs [param_index]);
12147 ccw_entry = g_new0 (MonoCCWInterface, 1);
12148 ccw_entry->ccw = ccw;
12149 ccw_entry->vtable = vtable;
12150 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
12151 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
12158 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
12166 * mono_marshal_free_ccw:
12167 * @object: the mono object
12169 * Returns: whether the object had a CCW
12172 mono_marshal_free_ccw (MonoObject* object)
12174 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
12175 /* no ccw's were created */
12176 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
12179 /* need to cache orig list address to remove from hash_table if empty */
12180 mono_cominterop_lock ();
12181 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12182 mono_cominterop_unlock ();
12187 ccw_list_item = ccw_list;
12188 while (ccw_list_item) {
12189 MonoCCW* ccw_iter = ccw_list_item->data;
12190 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
12192 /* Looks like the GC NULLs the weakref handle target before running the
12193 * finalizer. So if we get a NULL target, destroy the CCW as well. */
12194 if (!handle_target || handle_target == object) {
12195 /* remove all interfaces */
12196 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
12197 g_hash_table_destroy (ccw_iter->vtable_hash);
12199 /* get next before we delete */
12200 ccw_list_item = g_list_next(ccw_list_item);
12202 /* remove ccw from list */
12203 ccw_list = g_list_remove (ccw_list, ccw_iter);
12207 ccw_list_item = g_list_next(ccw_list_item);
12210 /* if list is empty remove original address from hash */
12211 if (g_list_length (ccw_list) == 0)
12212 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12219 * cominterop_get_managed_wrapper_adjusted:
12220 * @method: managed COM Interop method
12222 * Returns: the generated method to call with signature matching
12223 * the unmanaged COM Method signature
12225 static MonoMethod *
12226 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
12228 static MonoMethod *get_hr_for_exception = NULL;
12229 MonoMethod *res = NULL;
12230 MonoMethodBuilder *mb;
12231 MonoMarshalSpec **mspecs;
12232 MonoMethodSignature *sig, *sig_native;
12233 MonoExceptionClause *main_clause = NULL;
12234 MonoMethodHeader *header;
12238 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12240 if (!get_hr_for_exception)
12241 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
12243 sig = mono_method_signature (method);
12245 /* create unmanaged wrapper */
12246 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
12248 sig_native = cominterop_method_signature (method);
12250 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
12252 mono_method_get_marshal_info (method, mspecs);
12254 /* move managed args up one */
12255 for (i = sig->param_count; i >= 1; i--)
12256 mspecs [i+1] = mspecs [i];
12258 /* first arg is IntPtr for interface */
12261 /* move return spec to last param */
12262 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12263 mspecs [sig_native->param_count] = mspecs [0];
12267 if (!preserve_sig) {
12268 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
12271 main_clause = g_new0 (MonoExceptionClause, 1);
12272 main_clause->try_offset = mono_mb_get_label (mb);
12275 /* load last param to store result if not preserve_sig and not void */
12276 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12277 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
12279 /* the CCW -> object conversion */
12280 mono_mb_emit_ldarg (mb, 0);
12281 mono_mb_emit_icon (mb, FALSE);
12282 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
12284 for (i = 0; i < sig->param_count; i++)
12285 mono_mb_emit_ldarg (mb, i+1);
12287 mono_mb_emit_managed_call (mb, method, NULL);
12289 if (!preserve_sig) {
12290 /* store result if not preserve_sig and we have one */
12291 if (!MONO_TYPE_IS_VOID (sig->ret))
12292 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
12294 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12296 /* Main exception catch */
12297 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12298 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
12299 main_clause->data.catch_class = mono_defaults.object_class;
12302 main_clause->handler_offset = mono_mb_get_label (mb);
12303 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
12304 mono_mb_emit_stloc (mb, hr);
12305 mono_mb_emit_branch (mb, CEE_LEAVE);
12306 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
12309 mono_mb_patch_branch (mb, pos_leave);
12311 mono_mb_emit_ldloc (mb, hr);
12314 mono_mb_emit_byte (mb, CEE_RET);
12316 mono_loader_lock ();
12317 mono_marshal_lock ();
12318 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
12319 mono_marshal_unlock ();
12320 mono_loader_unlock ();
12324 for (i = sig_native->param_count; i >= 0; i--)
12326 mono_metadata_free_marshal_spec (mspecs [i]);
12329 if (!preserve_sig) {
12330 header = ((MonoMethodNormal *)res)->header;
12331 header->num_clauses = 1;
12332 header->clauses = main_clause;
12339 * cominterop_mono_string_to_guid:
12341 * Converts the standard string representation of a GUID
12342 * to a 16 byte Microsoft GUID.
12345 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
12346 gunichar2 * chars = mono_string_chars (string);
12348 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
12350 for (i = 0; i < sizeof(indexes); i++)
12351 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
12355 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
12357 guint8 klass_guid [16];
12358 if (cominterop_class_guid (klass, klass_guid))
12359 return !memcmp (guid, klass_guid, sizeof (klass_guid));
12364 cominterop_ccw_addref (MonoCCWInterface* ccwe)
12366 gint32 ref_count = 0;
12367 MonoCCW* ccw = ccwe->ccw;
12369 g_assert (ccw->gc_handle);
12370 g_assert (ccw->ref_count >= 0);
12371 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
12372 if (ref_count == 1) {
12373 guint32 oldhandle = ccw->gc_handle;
12374 g_assert (oldhandle);
12375 /* since we now have a ref count, alloc a strong handle*/
12376 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12377 mono_gchandle_free (oldhandle);
12383 cominterop_ccw_release (MonoCCWInterface* ccwe)
12385 gint32 ref_count = 0;
12386 MonoCCW* ccw = ccwe->ccw;
12388 g_assert (ccw->ref_count > 0);
12389 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12390 if (ref_count == 0) {
12391 /* allow gc of object */
12392 guint32 oldhandle = ccw->gc_handle;
12393 g_assert (oldhandle);
12394 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12395 mono_gchandle_free (oldhandle);
12400 #define MONO_S_OK 0x00000000L
12401 #define MONO_E_NOINTERFACE 0x80004002L
12402 #define MONO_E_NOTIMPL 0x80004001L
12405 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12408 MonoClass *itf = NULL;
12410 MonoCCW* ccw = ccwe->ccw;
12411 MonoClass* klass = NULL;
12412 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12415 klass = mono_object_class (object);
12420 /* handle IUnknown special */
12421 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12422 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12423 /* remember to addref on QI */
12424 cominterop_ccw_addref (*ppv);
12428 /* handle IDispatch special */
12429 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12430 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12431 /* remember to addref on QI */
12432 cominterop_ccw_addref (*ppv);
12436 ifaces = mono_class_get_implemented_interfaces (klass);
12438 for (i = 0; i < ifaces->len; ++i) {
12439 MonoClass *ic = NULL;
12440 ic = g_ptr_array_index (ifaces, i);
12441 if (cominterop_class_guid_equal (riid, ic)) {
12446 g_ptr_array_free (ifaces, TRUE);
12449 *ppv = cominterop_get_ccw (object, itf);
12450 /* remember to addref on QI */
12451 cominterop_ccw_addref (*ppv);
12455 return MONO_E_NOINTERFACE;
12459 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12461 return MONO_E_NOTIMPL;
12465 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12467 return MONO_E_NOTIMPL;
12471 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12472 gunichar2** rgszNames, guint32 cNames,
12473 guint32 lcid, gint32 *rgDispId)
12475 return MONO_E_NOTIMPL;
12479 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12480 gpointer riid, guint32 lcid,
12481 guint16 wFlags, gpointer pDispParams,
12482 gpointer pVarResult, gpointer pExcepInfo,
12485 return MONO_E_NOTIMPL;
12488 #else /* DISABLE_COM */
12491 mono_marshal_free_ccw (MonoObject* object)
12496 #endif /* DISABLE_COM */
12499 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12504 for (i = 0; i < len; ++i)
12508 g_assert (i < len);
12511 while (byte && !(byte & 1))
12513 g_assert (byte == 1);
12516 *bitmask = buf [i];
12520 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12522 MonoMethodBuilder *mb;
12523 MonoMethodSignature *sig, *csig;
12524 MonoExceptionClause *clause;
12525 MonoMethodHeader *header;
12530 int i, param_count, sig_size, pos_leave;
12534 klass = method->klass;
12535 image = method->klass->image;
12536 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12538 if ((res = mono_marshal_find_in_cache (cache, method)))
12541 sig = mono_method_signature (method);
12542 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12544 /* add "this" and exception param */
12545 param_count = sig->param_count + sig->hasthis + 1;
12547 /* dup & extend signature */
12548 csig = mono_metadata_signature_alloc (image, param_count);
12549 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12550 memcpy (csig, sig, sig_size);
12551 csig->param_count = param_count;
12554 csig->call_convention = MONO_CALL_DEFAULT;
12556 if (sig->hasthis) {
12558 csig->params [0] = &klass->byval_arg;
12559 /* move params up by one */
12560 for (i = 0; i < sig->param_count; i++)
12561 csig->params [i + 1] = sig->params [i];
12564 /* setup exception param as byref+[out] */
12565 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12566 &mono_defaults.exception_class->byval_arg);
12567 csig->params [param_count - 1]->byref = 1;
12568 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12570 /* convert struct return to object */
12571 if (MONO_TYPE_ISSTRUCT (sig->ret))
12572 csig->ret = &mono_defaults.object_class->byval_arg;
12574 /* local 0 (temp for exception object) */
12575 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12577 /* local 1 (temp for result) */
12578 if (!MONO_TYPE_IS_VOID (sig->ret))
12579 mono_mb_add_local (mb, sig->ret);
12581 /* clear exception arg */
12582 mono_mb_emit_ldarg (mb, param_count - 1);
12583 mono_mb_emit_byte (mb, CEE_LDNULL);
12584 mono_mb_emit_byte (mb, CEE_STIND_REF);
12587 mono_loader_lock ();
12588 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12589 mono_loader_unlock ();
12590 clause->try_offset = mono_mb_get_label (mb);
12592 /* push method's args */
12593 for (i = 0; i < param_count - 1; i++) {
12597 mono_mb_emit_ldarg (mb, i);
12599 /* get the byval type of the param */
12600 klass = mono_class_from_mono_type (csig->params [i]);
12601 type = &klass->byval_arg;
12603 /* unbox struct args */
12604 if (MONO_TYPE_ISSTRUCT (type)) {
12605 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12607 /* byref args & and the "this" arg must remain a ptr.
12608 Otherwise make a copy of the value type */
12609 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12610 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12612 csig->params [i] = &mono_defaults.object_class->byval_arg;
12617 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12618 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12620 mono_mb_emit_op (mb, CEE_CALL, method);
12622 /* save result at local 1 */
12623 if (!MONO_TYPE_IS_VOID (sig->ret))
12624 mono_mb_emit_stloc (mb, 1);
12626 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12629 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12630 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12631 clause->data.catch_class = mono_defaults.object_class;
12633 clause->handler_offset = mono_mb_get_label (mb);
12635 /* store exception at local 0 */
12636 mono_mb_emit_stloc (mb, 0);
12637 mono_mb_emit_ldarg (mb, param_count - 1);
12638 mono_mb_emit_ldloc (mb, 0);
12639 mono_mb_emit_byte (mb, CEE_STIND_REF);
12640 mono_mb_emit_branch (mb, CEE_LEAVE);
12642 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12644 mono_mb_patch_branch (mb, pos_leave);
12647 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12648 mono_mb_emit_ldloc (mb, 1);
12650 /* box the return value */
12651 if (MONO_TYPE_ISSTRUCT (sig->ret))
12652 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12655 mono_mb_emit_byte (mb, CEE_RET);
12657 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12660 header = ((MonoMethodNormal *)res)->header;
12661 header->num_clauses = 1;
12662 header->clauses = clause;