2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
14 #include "metadata/marshal.h"
15 #include "metadata/tabledefs.h"
16 #include "metadata/exception.h"
17 #include "metadata/appdomain.h"
18 #include "mono/metadata/debug-helpers.h"
19 #include "mono/metadata/threadpool.h"
20 #include "mono/metadata/threads.h"
21 #include "mono/metadata/monitor.h"
22 #include "mono/metadata/metadata-internals.h"
23 #include "mono/metadata/domain-internals.h"
24 #include "mono/metadata/gc-internal.h"
25 #include "mono/metadata/threads-types.h"
26 #include "mono/metadata/string-icalls.h"
27 #include <mono/os/gc_wrapper.h>
31 /* #define DEBUG_RUNTIME_CODE */
33 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
37 MONO_MARSHAL_NONE, /* No marshalling needed */
38 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
39 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
40 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
41 } MonoXDomainMarshalType;
44 #include "mono/cil/opcode.def"
49 struct _MonoMethodBuilder {
56 guint32 code_size, pos;
60 struct _MonoRemotingMethods {
62 MonoMethod *invoke_with_check;
63 MonoMethod *xdomain_invoke;
64 MonoMethod *xdomain_dispatch;
67 typedef struct _MonoRemotingMethods MonoRemotingMethods;
69 #ifdef DEBUG_RUNTIME_CODE
71 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
73 return g_strdup (" ");
76 static MonoDisHelper marshal_dh = {
87 * This mutex protects the various marshalling related caches in MonoImage
88 * and a few other data structures static to this file.
89 * Note that when this lock is held it is not possible to take other runtime
90 * locks like the loader lock.
92 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
93 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
94 static CRITICAL_SECTION marshal_mutex;
96 /* This mutex protects the various cominterop related caches in MonoImage */
97 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
98 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
99 static CRITICAL_SECTION cominterop_mutex;
101 /* Maps wrapper methods to the methods they wrap */
102 static GHashTable *wrapper_hash;
104 static guint32 last_error_tls_id;
106 static guint32 load_type_info_tls_id;
109 delegate_hash_table_add (MonoDelegate *d);
112 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
115 mono_struct_delete_old (MonoClass *klass, char *ptr);
118 mono_marshal_string_to_utf16 (MonoString *s);
121 mono_marshal_string_to_utf16_copy (MonoString *s);
124 mono_string_to_lpstr (MonoString *string_obj);
127 mono_string_from_bstr (gpointer bstr);
130 mono_free_bstr (gpointer bstr);
133 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
136 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
139 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
141 static MonoAsyncResult *
142 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
145 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
148 mono_marshal_xdomain_copy_value (MonoObject *val);
151 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
154 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
157 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
160 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
162 static MonoReflectionType *
163 type_from_handle (MonoType *handle);
166 mono_marshal_set_last_error_windows (int error);
169 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func);
171 static void init_safe_handle (void);
173 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
174 static MonoMethod *sh_dangerous_add_ref;
175 static MonoMethod *sh_dangerous_release;
181 sh_dangerous_add_ref = mono_class_get_method_from_name (
182 mono_defaults.safehandle_class, "DangerousAddRef", 1);
183 sh_dangerous_release = mono_class_get_method_from_name (
184 mono_defaults.safehandle_class, "DangerousRelease", 0);
188 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
190 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
192 mono_register_jit_icall (func, name, sig, save);
195 static MonoMethodSignature*
196 signature_dup (MonoImage *image, MonoMethodSignature *sig)
198 MonoMethodSignature *res;
201 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
203 res = mono_mempool_alloc (image->mempool, sigsize);
204 mono_loader_unlock ();
205 memcpy (res, sig, sigsize);
210 static MonoMethodSignature*
211 signature_no_pinvoke (MonoMethod *method)
213 MonoMethodSignature *sig = mono_method_signature (method);
215 sig = signature_dup (method->klass->image, sig);
216 sig->pinvoke = FALSE;
222 /* Begin COM Interop related stuff until seperate file */
225 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
226 #ifdef PLATFORM_WIN32
227 #define STDCALL __stdcall
232 /* Upon creation of a CCW, only allocate a weak handle and set the
233 * reference count to 0. If the unmanaged client code decides to addref and
234 * hold onto the CCW, I then allocate a strong handle. Once the reference count
235 * goes back to 0, convert back to a weak handle.
240 GHashTable* vtable_hash;
243 /* This type is the actual pointer passed to unmanaged code
244 * to represent a COM interface.
252 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
254 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
256 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
259 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
261 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
263 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
264 gunichar2** rgszNames, guint32 cNames,
265 guint32 lcid, gint32 *rgDispId);
267 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
268 gpointer riid, guint32 lcid,
269 guint16 wFlags, gpointer pDispParams,
270 gpointer pVarResult, gpointer pExcepInfo,
274 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
277 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
280 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
283 * cominterop_method_signature:
286 * Returns: the corresponding unmanaged method signature for a managed COM
289 static MonoMethodSignature*
290 cominterop_method_signature (MonoMethod* method)
292 MonoMethodSignature *res;
293 MonoImage *image = method->klass->image;
294 MonoMethodSignature *sig = mono_method_signature (method);
295 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
298 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
300 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
303 sigsize = sizeof (MonoMethodSignature) + ((param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
305 res = mono_mempool_alloc (image->mempool, sigsize);
306 mono_loader_unlock ();
307 memcpy (res, sig, sigsize);
309 // now move args forward one
310 for (i = sig->param_count-1; i >= 0; i--)
311 res->params[i+1] = sig->params[i];
313 // first arg is interface pointer
314 res->params[0] = &mono_defaults.int_class->byval_arg;
320 // last arg is return type
321 if (!MONO_TYPE_IS_VOID (sig->ret)) {
322 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
323 res->params[param_count-1]->byref = 1;
324 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
327 // return type is always int32 (HRESULT)
328 res->ret = &mono_defaults.int32_class->byval_arg;
332 res->pinvoke = FALSE;
338 res->param_count = param_count;
340 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
341 #ifdef PLATFORM_WIN32
342 res->call_convention = MONO_CALL_STDCALL;
344 res->call_convention = MONO_CALL_C;
351 * cominterop_get_function_pointer:
352 * @itf: a pointer to the COM interface
353 * @slot: the vtable slot of the method pointer to return
355 * Returns: the unmanaged vtable function pointer from the interface
358 cominterop_get_function_pointer (gpointer itf, int slot)
361 func = *((*(gpointer**)itf)+slot);
366 * cominterop_object_is_com_object:
367 * @obj: a pointer to the object
369 * Returns: a value indicating if the object is a
370 * Runtime Callable Wrapper (RCW) for a COM object
373 cominterop_object_is_rcw (MonoObject *obj)
375 MonoClass *klass = NULL;
376 MonoRealProxy* real_proxy = NULL;
379 klass = mono_object_class (obj);
380 if (klass != mono_defaults.transparent_proxy_class)
383 real_proxy = ((MonoTransparentProxy*)obj)->rp;
387 klass = mono_object_class (real_proxy);
388 return (klass && klass == mono_defaults.com_interop_proxy_class);
392 cominterop_get_com_slot_begin (MonoClass* klass)
394 static MonoClass *interface_type_attribute = NULL;
395 MonoCustomAttrInfo *cinfo = NULL;
396 MonoInterfaceTypeAttribute* itf_attr = NULL;
398 if (!interface_type_attribute)
399 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
400 cinfo = mono_custom_attrs_from_class (klass);
402 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
404 mono_custom_attrs_free (cinfo);
407 if (itf_attr && itf_attr->intType == 1)
408 return 3; /* 3 methods in IUnknown*/
410 return 7; /* 7 methods in IDispatch*/
414 * cominterop_get_method_interface:
415 * @method: method being called
417 * Returns: the MonoClass* representing the interface on which
418 * the method is defined.
421 cominterop_get_method_interface (MonoMethod* method)
423 MonoClass *ic = method->klass;
425 /* if method is on a class, we need to look up interface method exists on */
426 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
427 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
430 for (i = 0; i < ifaces->len; ++i) {
432 ic = g_ptr_array_index (ifaces, i);
433 offset = mono_class_interface_offset (method->klass, ic);
434 if (method->slot >= offset && method->slot < offset + ic->method.count)
438 g_ptr_array_free (ifaces, TRUE);
443 g_assert (MONO_CLASS_IS_INTERFACE (ic));
449 * cominterop_get_com_slot_for_method:
452 * Returns: the method's slot in the COM interface vtable
455 cominterop_get_com_slot_for_method (MonoMethod* method)
457 guint32 slot = method->slot;
458 MonoClass *ic = method->klass;
460 /* if method is on a class, we need to look up interface method exists on */
461 if (!MONO_CLASS_IS_INTERFACE(ic)) {
463 ic = cominterop_get_method_interface (method);
464 offset = mono_class_interface_offset (method->klass, ic);
465 g_assert(offset >= 0);
470 g_assert (MONO_CLASS_IS_INTERFACE (ic));
472 return slot + cominterop_get_com_slot_begin (ic);
477 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
480 cominterop_class_guid (MonoClass* klass, guint8* guid)
482 static MonoClass *GuidAttribute = NULL;
483 MonoCustomAttrInfo *cinfo;
485 /* Handle the GuidAttribute */
487 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
489 cinfo = mono_custom_attrs_from_class (klass);
491 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
496 mono_custom_attrs_free (cinfo);
498 cominterop_mono_string_to_guid (attr->guid, guid);
505 * cominterop_get_interface:
506 * @obj: managed wrapper object containing COM object
507 * @ic: interface type to retrieve for COM object
509 * Returns: the COM interface requested
512 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
517 g_assert (MONO_CLASS_IS_INTERFACE (ic));
519 mono_cominterop_lock ();
521 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
522 mono_cominterop_unlock ();
526 int found = cominterop_class_guid (ic, iid);
529 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
530 if (hr < 0 && throw_exception) {
531 static MonoMethod* throw_exception_for_hr = NULL;
533 void* params[1] = {&hr};
534 if (!throw_exception_for_hr)
535 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
536 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
537 mono_raise_exception (ex);
540 if (hr >= 0 && itf) {
541 mono_cominterop_lock ();
543 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
544 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
545 mono_cominterop_unlock ();
556 cominterop_get_hresult_for_exception (MonoException* exc)
563 mono_marshal_init (void)
565 static gboolean module_initialized = FALSE;
567 if (!module_initialized) {
568 module_initialized = TRUE;
569 InitializeCriticalSection (&marshal_mutex);
570 InitializeCriticalSection (&cominterop_mutex);
571 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
572 last_error_tls_id = TlsAlloc ();
573 load_type_info_tls_id = TlsAlloc ();
575 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
576 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
577 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
578 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
579 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
580 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
581 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
582 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
583 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
584 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
585 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
586 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
587 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
588 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
589 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
590 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
591 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
592 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
593 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
594 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
595 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
596 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
597 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
598 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
599 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
600 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
601 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
602 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
603 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
604 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
605 register_icall (g_free, "g_free", "void ptr", FALSE);
606 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
607 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
608 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
609 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
610 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
611 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
612 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
613 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
614 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
615 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
616 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
617 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
618 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
619 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
620 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
621 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
622 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
623 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
624 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
625 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
626 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
627 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
632 mono_marshal_cleanup (void)
634 g_hash_table_destroy (wrapper_hash);
635 TlsFree (load_type_info_tls_id);
636 TlsFree (last_error_tls_id);
637 DeleteCriticalSection (&marshal_mutex);
638 DeleteCriticalSection (&cominterop_mutex);
641 MonoClass *byte_array_class;
642 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
643 static MonoMethod *method_set_context, *method_get_context;
644 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
647 mono_remoting_marshal_init (void)
651 static gboolean module_initialized = FALSE;
653 if (!module_initialized) {
654 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
655 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
656 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
657 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
659 klass = mono_defaults.real_proxy_class;
660 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
662 klass = mono_defaults.exception_class;
663 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
665 klass = mono_defaults.thread_class;
666 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
668 klass = mono_defaults.appdomain_class;
669 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
670 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
672 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
673 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
675 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
676 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
678 module_initialized = TRUE;
683 mono_delegate_to_ftnptr (MonoDelegate *delegate)
685 MonoMethod *method, *wrapper;
691 if (delegate->delegate_trampoline)
692 return delegate->delegate_trampoline;
694 klass = ((MonoObject *)delegate)->vtable->klass;
695 g_assert (klass->delegate);
697 method = delegate->method;
699 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
701 delegate->delegate_trampoline = mono_compile_method (wrapper);
703 // Add the delegate to the delegate hash table
704 delegate_hash_table_add (delegate);
706 /* when the object is collected, collect the dynamic method, too */
707 mono_object_register_finalizer ((MonoObject*)delegate);
709 return delegate->delegate_trampoline;
713 * this hash table maps from a delegate trampoline object to a weak reference
714 * of the delegate. As an optimizations with a non-moving GC we store the
715 * object pointer itself, otherwise we use a GC handle.
717 static GHashTable *delegate_hash_table;
720 delegate_hash_table_new (void) {
721 return g_hash_table_new (NULL, NULL);
725 delegate_hash_table_remove (MonoDelegate *d)
727 #ifdef HAVE_MOVING_COLLECTOR
730 mono_marshal_lock ();
731 if (delegate_hash_table == NULL)
732 delegate_hash_table = delegate_hash_table_new ();
733 #ifdef HAVE_MOVING_COLLECTOR
734 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
736 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
737 mono_marshal_unlock ();
738 #ifdef HAVE_MOVING_COLLECTOR
739 mono_gchandle_free (gchandle);
744 delegate_hash_table_add (MonoDelegate *d)
746 #ifdef HAVE_MOVING_COLLECTOR
747 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
749 mono_marshal_lock ();
750 if (delegate_hash_table == NULL)
751 delegate_hash_table = delegate_hash_table_new ();
752 #ifdef HAVE_MOVING_COLLECTOR
753 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
755 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
757 mono_marshal_unlock ();
761 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
763 #ifdef HAVE_MOVING_COLLECTOR
768 mono_marshal_lock ();
769 if (delegate_hash_table == NULL)
770 delegate_hash_table = delegate_hash_table_new ();
772 #ifdef HAVE_MOVING_COLLECTOR
773 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
774 mono_marshal_unlock ();
776 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
780 d = g_hash_table_lookup (delegate_hash_table, ftn);
781 mono_marshal_unlock ();
784 /* This is a native function, so construct a delegate for it */
785 static MonoClass *UnmanagedFunctionPointerAttribute;
786 MonoMethodSignature *sig;
788 MonoMarshalSpec **mspecs;
789 MonoCustomAttrInfo *cinfo;
790 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
791 MonoMethod *invoke = mono_get_delegate_invoke (klass);
792 MonoMethodPInvoke piinfo;
795 memset (&piinfo, 0, sizeof (piinfo));
796 if (!UnmanagedFunctionPointerAttribute)
797 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
799 /* The attribute is only available in Net 2.0 */
800 if (UnmanagedFunctionPointerAttribute) {
802 * The pinvoke attributes are stored in a real custom attribute so we have to
805 cinfo = mono_custom_attrs_from_class (klass);
807 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
809 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
812 mono_custom_attrs_free (cinfo);
816 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
817 mono_method_get_marshal_info (invoke, mspecs);
818 /* Freed below so don't alloc from mempool */
819 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
822 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
824 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
826 mono_metadata_free_marshal_spec (mspecs [i]);
830 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
831 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
834 if (d->object.vtable->domain != mono_domain_get ())
835 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
841 mono_delegate_free_ftnptr (MonoDelegate *delegate)
846 delegate_hash_table_remove (delegate);
848 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
850 if (!delegate->target) {
851 /* The wrapper method is shared between delegates -> no need to free it */
856 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
859 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
864 mono_array_to_savearray (MonoArray *array)
869 g_assert_not_reached ();
874 mono_array_to_lparray (MonoArray *array)
879 /* fixme: maybe we need to make a copy */
880 return array->vector;
884 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
886 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
888 if (elclass == mono_defaults.byte_class) {
889 GError *error = NULL;
893 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
896 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
900 g_error_free (error);
903 g_assert_not_reached ();
907 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
909 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
911 if (elclass == mono_defaults.byte_class) {
913 GError *error = NULL;
915 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
917 MonoException *exc = mono_get_exception_argument ("string", error->message);
918 g_error_free (error);
919 mono_raise_exception (exc);
922 memcpy (native_arr, as, MIN (strlen (as), elnum));
925 g_assert_not_reached ();
930 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
932 GError *error = NULL;
942 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
944 if (items_written > mono_stringbuilder_capacity (sb))
945 items_written = mono_stringbuilder_capacity (sb);
948 if (! sb->str || sb->str == sb->cached_str) {
949 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
950 sb->cached_str = NULL;
953 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
954 sb->length = items_written;
956 g_error_free (error);
962 * FIXME: This routine does not seem to do what it seems to do
963 * the @text is never copied into the string builder
966 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
973 g_assert (mono_string_chars (sb->str) == text);
975 for (len = 0; text [len] != 0; ++len)
982 * mono_string_builder_to_utf8:
983 * @sb: the string builder
985 * Converts to utf8 the contents of the MonoStringBuilder.
987 * Returns: a utf8 string with the contents of the StringBuilder.
989 * The return value must be released with g_free.
992 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
994 GError *error = NULL;
1001 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
1003 * The sb could have been allocated with the default capacity and be empty.
1004 * we need to alloc a buffer of the default capacity in this case.
1006 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1007 sb->cached_str = NULL;
1010 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
1012 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
1014 g_error_free (error);
1015 mono_marshal_free (res);
1016 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1018 memcpy (res, tmp, sb->length + 1);
1026 * mono_string_builder_to_utf16:
1027 * @sb: the string builder
1029 * Converts to utf16 the contents of the MonoStringBuilder.
1031 * Returns: a utf16 string with the contents of the StringBuilder.
1033 * The return value must not be freed.
1036 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1044 * The stringbuilder might not have ownership of this string. If this is
1045 * the case, we must duplicate the string, so that we don't munge immutable
1048 if (sb->str == sb->cached_str) {
1050 * The sb could have been allocated with the default capacity and be empty.
1051 * we need to alloc a buffer of the default capacity in this case.
1053 if (sb->str->length == 0)
1054 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1056 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1057 sb->cached_str = NULL;
1060 return mono_string_chars (sb->str);
1064 mono_string_to_lpstr (MonoString *s)
1066 #ifdef PLATFORM_WIN32
1069 GError *error = NULL;
1075 as = CoTaskMemAlloc (1);
1080 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1082 MonoException *exc = mono_get_exception_argument ("string", error->message);
1083 g_error_free (error);
1084 mono_raise_exception(exc);
1087 as = CoTaskMemAlloc (len + 1);
1088 memcpy (as, tmp, len + 1);
1093 return mono_string_to_utf8 (s);
1098 mono_string_to_ansibstr (MonoString *string_obj)
1100 g_error ("UnmanagedMarshal.BStr is not implemented.");
1105 mono_string_to_bstr (MonoString *string_obj)
1107 #ifdef PLATFORM_WIN32
1110 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1112 int slen = mono_string_length (string_obj);
1113 char *ret = g_malloc (slen * 2 + 4 + 2);
1116 memcpy (ret + 4, mono_string_chars (string_obj), slen * 2);
1117 * ((guint32 *) ret) = slen * 2;
1118 ret [4 + slen * 2] = 0;
1119 ret [5 + slen * 2] = 0;
1126 mono_string_from_bstr (gpointer bstr)
1128 #ifdef PLATFORM_WIN32
1131 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1133 return mono_string_new_utf16 (mono_domain_get (), bstr, *(guint32 *)((char *)bstr - 4) / 2);
1138 mono_free_bstr (gpointer bstr)
1140 #ifdef PLATFORM_WIN32
1141 SysFreeString ((BSTR)bstr);
1143 g_free (((char *)bstr) - 4);
1148 * mono_string_to_byvalstr:
1149 * @dst: Where to store the null-terminated utf8 decoded string.
1150 * @src: the MonoString to copy.
1151 * @size: the maximum number of bytes to copy.
1153 * Copies the MonoString pointed to by @src as a utf8 string
1154 * into @dst, it copies at most @size bytes into the destination.
1157 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1162 g_assert (dst != NULL);
1163 g_assert (size > 0);
1165 memset (dst, 0, size);
1169 s = mono_string_to_utf8 (src);
1170 len = MIN (size, strlen (s));
1173 memcpy (dst, s, len);
1178 * mono_string_to_byvalwstr:
1179 * @dst: Where to store the null-terminated utf16 decoded string.
1180 * @src: the MonoString to copy.
1181 * @size: the maximum number of bytes to copy.
1183 * Copies the MonoString pointed to by @src as a utf16 string into
1184 * @dst, it copies at most @size bytes into the destination (including
1185 * a terminating 16-bit zero terminator).
1188 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1192 g_assert (dst != NULL);
1193 g_assert (size > 1);
1196 memset (dst, 0, size * 2);
1200 len = MIN (size, (mono_string_length (src)));
1201 memcpy (dst, mono_string_chars (src), size * 2);
1202 if (size <= mono_string_length (src))
1204 *((gunichar2 *) dst + len) = 0;
1208 mono_mb_free (MonoMethodBuilder *mb)
1210 g_list_free (mb->locals_list);
1212 g_free (mb->method);
1213 if (!mb->no_dup_name)
1220 static MonoMethodBuilder *
1221 mono_mb_new_base (MonoClass *klass, MonoWrapperType type)
1223 MonoMethodBuilder *mb;
1226 g_assert (klass != NULL);
1228 mb = g_new0 (MonoMethodBuilder, 1);
1230 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
1234 m->wrapper_type = type;
1237 mb->code = g_malloc (mb->code_size);
1242 static MonoMethodBuilder *
1243 mono_mb_new_no_dup_name (MonoClass *klass, const char *name, MonoWrapperType type)
1245 MonoMethodBuilder *mb = mono_mb_new_base (klass, type);
1246 mb->name = (char*)name;
1247 mb->no_dup_name = TRUE;
1252 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
1254 MonoMethodBuilder *mb = mono_mb_new_base (klass, type);
1255 mb->name = g_strdup (name);
1260 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
1264 g_assert (mb != NULL);
1265 g_assert (type != NULL);
1268 mb->locals_list = g_list_append (mb->locals_list, type);
1275 * mono_mb_create_method:
1277 * Create a MonoMethod from this method builder.
1278 * Returns: the newly created method.
1280 * LOCKING: Takes the loader lock.
1283 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
1285 MonoMethodHeader *header;
1286 MonoMethodWrapper *mw;
1292 g_assert (mb != NULL);
1294 mp = mb->method->klass->image->mempool;
1296 mono_loader_lock ();
1298 method = mb->method;
1300 method->name = mb->name;
1301 method->dynamic = TRUE;
1303 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
1304 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
1306 header->code = mb->code;
1308 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
1309 header->locals [i] = mono_metadata_type_dup (NULL, (MonoType*)l->data);
1312 /* Realloc the method info into a mempool */
1314 method = mono_mempool_alloc0 (mp, sizeof (MonoMethodWrapper));
1315 memcpy (method, mb->method, sizeof (MonoMethodWrapper));
1317 if (mb->no_dup_name)
1318 method->name = mb->name;
1320 method->name = mono_mempool_strdup (mp, mb->name);
1322 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
1323 mono_mempool_alloc0 (mp, sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
1325 header->code = mono_mempool_alloc (mp, mb->pos);
1326 memcpy ((char*)header->code, mb->code, mb->pos);
1328 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
1329 header->locals [i] = (MonoType *)l->data;
1336 header->max_stack = max_stack;
1338 method->signature = signature;
1340 header->code_size = mb->pos;
1341 header->num_locals = mb->locals;
1342 header->init_locals = TRUE;
1344 mw = (MonoMethodWrapper*) mb->method;
1345 i = g_list_length (mw->method_data);
1349 l = g_list_reverse (mw->method_data);
1350 if (method->dynamic)
1351 data = g_malloc (sizeof (gpointer) * (i + 1));
1353 data = mono_mempool_alloc (mp, sizeof (gpointer) * (i + 1));
1354 /* store the size in the first element */
1355 data [0] = GUINT_TO_POINTER (i);
1357 for (tmp = l; tmp; tmp = tmp->next) {
1358 data [i++] = tmp->data;
1362 ((MonoMethodWrapper*)method)->method_data = data;
1365 static int total_code = 0;
1366 static int total_alloc = 0;
1367 total_code += mb->pos;
1368 total_alloc += mb->code_size;
1369 g_print ("code size: %d of %d (allocated: %d)\n", mb->pos, total_code, total_alloc);
1372 #ifdef DEBUG_RUNTIME_CODE
1373 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (method, TRUE));
1374 printf ("%s\n", mono_disasm_code (&marshal_dh, method, mb->code, mb->code + mb->pos));
1377 mono_loader_unlock ();
1382 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
1384 MonoMethodWrapper *mw;
1386 g_assert (mb != NULL);
1388 mw = (MonoMethodWrapper *)mb->method;
1390 /* one O(n) is enough */
1391 mw->method_data = g_list_prepend (mw->method_data, data);
1393 return g_list_length (mw->method_data);
1397 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
1399 mb->code [pos] = value & 0xff;
1400 mb->code [pos + 1] = (value >> 8) & 0xff;
1401 mb->code [pos + 2] = (value >> 16) & 0xff;
1402 mb->code [pos + 3] = (value >> 24) & 0xff;
1406 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
1408 *((gint8 *)(&mb->code [pos])) = value;
1412 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
1414 if (mb->pos >= mb->code_size) {
1415 mb->code_size += mb->code_size >> 1;
1416 mb->code = g_realloc (mb->code, mb->code_size);
1419 mb->code [mb->pos++] = op;
1423 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
1425 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1426 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1429 mono_mb_emit_icon (mb, offset);
1430 mono_mb_emit_byte (mb, CEE_ADD);
1435 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1438 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1439 mono_mb_emit_byte (mb, CEE_LDIND_I);
1440 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1441 mono_mb_emit_byte (mb, CEE_ADD);
1442 mono_mb_emit_byte (mb, CEE_LDIND_I);
1443 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1444 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1445 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1446 mono_mb_emit_byte (mb, branch_code);
1448 mono_mb_emit_i4 (mb, 0);
1453 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1456 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1457 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1458 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1459 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1460 mono_mb_emit_icon (mb, -1);
1461 mono_mb_emit_byte (mb, branch_code);
1463 mono_mb_emit_i4 (mb, 0);
1468 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
1470 if ((mb->pos + 4) >= mb->code_size) {
1471 mb->code_size += mb->code_size >> 1;
1472 mb->code = g_realloc (mb->code, mb->code_size);
1475 mono_mb_patch_addr (mb, mb->pos, data);
1480 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
1482 if ((mb->pos + 2) >= mb->code_size) {
1483 mb->code_size += mb->code_size >> 1;
1484 mb->code = g_realloc (mb->code, mb->code_size);
1487 mb->code [mb->pos] = data & 0xff;
1488 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
1493 mono_mb_emit_op (MonoMethodBuilder *mb, guint8 op, gpointer data)
1495 mono_mb_emit_byte (mb, op);
1496 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, data));
1500 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
1502 mono_mb_emit_op (mb, CEE_LDSTR, str);
1506 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
1509 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
1510 } else if (argnum < 256) {
1511 mono_mb_emit_byte (mb, CEE_LDARG_S);
1512 mono_mb_emit_byte (mb, argnum);
1514 mono_mb_emit_byte (mb, CEE_PREFIX1);
1515 mono_mb_emit_byte (mb, CEE_LDARG);
1516 mono_mb_emit_i2 (mb, argnum);
1521 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
1524 mono_mb_emit_byte (mb, CEE_LDARGA_S);
1525 mono_mb_emit_byte (mb, argnum);
1527 mono_mb_emit_byte (mb, CEE_PREFIX1);
1528 mono_mb_emit_byte (mb, CEE_LDARGA);
1529 mono_mb_emit_i2 (mb, argnum);
1534 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
1537 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
1538 mono_mb_emit_byte (mb, locnum);
1540 mono_mb_emit_byte (mb, CEE_PREFIX1);
1541 mono_mb_emit_byte (mb, CEE_LDLOCA);
1542 mono_mb_emit_i2 (mb, locnum);
1547 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
1550 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
1551 } else if (num < 256) {
1552 mono_mb_emit_byte (mb, CEE_LDLOC_S);
1553 mono_mb_emit_byte (mb, num);
1555 mono_mb_emit_byte (mb, CEE_PREFIX1);
1556 mono_mb_emit_byte (mb, CEE_LDLOC);
1557 mono_mb_emit_i2 (mb, num);
1562 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
1565 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
1566 } else if (num < 256) {
1567 mono_mb_emit_byte (mb, CEE_STLOC_S);
1568 mono_mb_emit_byte (mb, num);
1570 mono_mb_emit_byte (mb, CEE_PREFIX1);
1571 mono_mb_emit_byte (mb, CEE_STLOC);
1572 mono_mb_emit_i2 (mb, num);
1577 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
1579 if (value >= -1 && value < 8) {
1580 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
1581 } else if (value >= -128 && value <= 127) {
1582 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
1583 mono_mb_emit_byte (mb, value);
1585 mono_mb_emit_byte (mb, CEE_LDC_I4);
1586 mono_mb_emit_i4 (mb, value);
1591 mono_mb_get_label (MonoMethodBuilder *mb)
1597 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
1600 mono_mb_emit_byte (mb, op);
1602 mono_mb_emit_i4 (mb, 0);
1607 mono_mb_emit_short_branch (MonoMethodBuilder *mb, guint8 op)
1610 mono_mb_emit_byte (mb, op);
1612 mono_mb_emit_byte (mb, 0);
1618 mono_mb_patch_branch (MonoMethodBuilder *mb, guint32 pos)
1620 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1624 mono_mb_patch_short_branch (MonoMethodBuilder *mb, guint32 pos)
1626 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
1630 mono_mb_emit_ptr (MonoMethodBuilder *mb, gpointer ptr)
1632 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1633 mono_mb_emit_op (mb, CEE_MONO_LDPTR, ptr);
1637 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
1639 mono_mb_emit_op (mb, CEE_CALLI, sig);
1643 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
1645 mono_mb_emit_op (mb, CEE_CALL, method);
1649 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
1651 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1652 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1653 mono_mb_emit_ptr (mb, func);
1654 mono_mb_emit_calli (mb, sig);
1655 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1656 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1660 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
1662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1663 mono_mb_emit_op (mb, CEE_MONO_ICALL, func);
1667 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1669 // get function pointer from 1st arg, the COM interface pointer
1670 mono_mb_emit_ldarg (mb, 0);
1671 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1672 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1675 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1676 mono_mb_emit_calli (mb, sig);
1677 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1678 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1682 mono_mb_emit_exception_full (MonoMethodBuilder *mb, const char *exc_nspace, const char *exc_name, const char *msg)
1684 MonoMethod *ctor = NULL;
1686 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, exc_nspace, exc_name);
1687 mono_class_init (mme);
1688 ctor = mono_class_get_method_from_name (mme, ".ctor", 0);
1690 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
1692 mono_mb_emit_byte (mb, CEE_DUP);
1693 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
1694 mono_mb_emit_ldstr (mb, (char*)msg);
1695 mono_mb_emit_byte (mb, CEE_STIND_REF);
1697 mono_mb_emit_byte (mb, CEE_THROW);
1701 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
1703 mono_mb_emit_exception_full (mb, "System", exc_name, msg);
1707 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1709 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1713 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
1715 mono_mb_emit_ldloc (mb, local);
1716 mono_mb_emit_icon (mb, incr);
1717 mono_mb_emit_byte (mb, CEE_ADD);
1718 mono_mb_emit_stloc (mb, local);
1722 mono_type_to_ldind (MonoType *type)
1728 switch (type->type) {
1730 return CEE_LDIND_I1;
1732 case MONO_TYPE_BOOLEAN:
1733 return CEE_LDIND_U1;
1735 return CEE_LDIND_I2;
1737 case MONO_TYPE_CHAR:
1738 return CEE_LDIND_U2;
1740 return CEE_LDIND_I4;
1742 return CEE_LDIND_U4;
1746 case MONO_TYPE_FNPTR:
1748 case MONO_TYPE_CLASS:
1749 case MONO_TYPE_STRING:
1750 case MONO_TYPE_OBJECT:
1751 case MONO_TYPE_SZARRAY:
1752 case MONO_TYPE_ARRAY:
1753 return CEE_LDIND_REF;
1756 return CEE_LDIND_I8;
1758 return CEE_LDIND_R4;
1760 return CEE_LDIND_R8;
1761 case MONO_TYPE_VALUETYPE:
1762 if (type->data.klass->enumtype) {
1763 type = type->data.klass->enum_basetype;
1767 case MONO_TYPE_TYPEDBYREF:
1769 case MONO_TYPE_GENERICINST:
1770 type = &type->data.generic_class->container_class->byval_arg;
1773 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1779 mono_type_to_stind (MonoType *type)
1785 switch (type->type) {
1788 case MONO_TYPE_BOOLEAN:
1789 return CEE_STIND_I1;
1792 case MONO_TYPE_CHAR:
1793 return CEE_STIND_I2;
1796 return CEE_STIND_I4;
1800 case MONO_TYPE_FNPTR:
1802 case MONO_TYPE_CLASS:
1803 case MONO_TYPE_STRING:
1804 case MONO_TYPE_OBJECT:
1805 case MONO_TYPE_SZARRAY:
1806 case MONO_TYPE_ARRAY:
1807 return CEE_STIND_REF;
1810 return CEE_STIND_I8;
1812 return CEE_STIND_R4;
1814 return CEE_STIND_R8;
1815 case MONO_TYPE_VALUETYPE:
1816 if (type->data.klass->enumtype) {
1817 type = type->data.klass->enum_basetype;
1821 case MONO_TYPE_TYPEDBYREF:
1823 case MONO_TYPE_GENERICINST:
1824 type = &type->data.generic_class->container_class->byval_arg;
1827 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1833 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1836 case MONO_MARSHAL_CONV_BOOL_I4:
1837 mono_mb_emit_ldloc (mb, 1);
1838 mono_mb_emit_ldloc (mb, 0);
1839 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1840 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1841 mono_mb_emit_byte (mb, 3);
1842 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1843 mono_mb_emit_byte (mb, CEE_BR_S);
1844 mono_mb_emit_byte (mb, 1);
1845 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1846 mono_mb_emit_byte (mb, CEE_STIND_I1);
1848 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1849 mono_mb_emit_ldloc (mb, 1);
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1852 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1853 mono_mb_emit_byte (mb, 3);
1854 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1855 mono_mb_emit_byte (mb, CEE_BR_S);
1856 mono_mb_emit_byte (mb, 1);
1857 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1858 mono_mb_emit_byte (mb, CEE_STIND_I1);
1860 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1861 MonoClass *eklass = NULL;
1864 if (type->type == MONO_TYPE_SZARRAY) {
1865 eklass = type->data.klass;
1867 g_assert_not_reached ();
1870 esize = mono_class_native_size (eklass, NULL);
1872 /* create a new array */
1873 mono_mb_emit_ldloc (mb, 1);
1874 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1875 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1876 mono_mb_emit_byte (mb, CEE_STIND_I);
1878 if (eklass->blittable) {
1879 /* copy the elements */
1880 mono_mb_emit_ldloc (mb, 1);
1881 mono_mb_emit_byte (mb, CEE_LDIND_I);
1882 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1883 mono_mb_emit_byte (mb, CEE_ADD);
1884 mono_mb_emit_ldloc (mb, 0);
1885 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1886 mono_mb_emit_byte (mb, CEE_PREFIX1);
1887 mono_mb_emit_byte (mb, CEE_CPBLK);
1890 int array_var, src_var, dst_var, index_var;
1891 guint32 label2, label3;
1893 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1894 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1895 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1898 mono_mb_emit_ldloc (mb, 1);
1899 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1900 mono_mb_emit_stloc (mb, array_var);
1902 /* save the old src pointer */
1903 mono_mb_emit_ldloc (mb, 0);
1904 mono_mb_emit_stloc (mb, src_var);
1905 /* save the old dst pointer */
1906 mono_mb_emit_ldloc (mb, 1);
1907 mono_mb_emit_stloc (mb, dst_var);
1909 /* Emit marshalling loop */
1910 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1911 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1912 mono_mb_emit_stloc (mb, index_var);
1916 mono_mb_emit_ldloc (mb, index_var);
1917 mono_mb_emit_ldloc (mb, array_var);
1918 mono_mb_emit_byte (mb, CEE_LDLEN);
1919 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1921 /* src is already set */
1924 mono_mb_emit_ldloc (mb, array_var);
1925 mono_mb_emit_ldloc (mb, index_var);
1926 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1927 mono_mb_emit_stloc (mb, 1);
1929 /* Do the conversion */
1930 emit_struct_conv (mb, eklass, TRUE);
1933 mono_mb_emit_add_to_local (mb, index_var, 1);
1935 mono_mb_emit_byte (mb, CEE_BR);
1936 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
1938 mono_mb_patch_branch (mb, label3);
1940 /* restore the old src pointer */
1941 mono_mb_emit_ldloc (mb, src_var);
1942 mono_mb_emit_stloc (mb, 0);
1943 /* restore the old dst pointer */
1944 mono_mb_emit_ldloc (mb, dst_var);
1945 mono_mb_emit_stloc (mb, 1);
1949 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1950 MonoClass *eclass = mono_defaults.char_class;
1952 /* create a new array */
1953 mono_mb_emit_ldloc (mb, 1);
1954 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1955 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1956 mono_mb_emit_byte (mb, CEE_STIND_REF);
1958 mono_mb_emit_ldloc (mb, 1);
1959 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1960 mono_mb_emit_ldloc (mb, 0);
1961 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1962 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1963 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1966 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1967 mono_mb_emit_ldloc (mb, 1);
1968 mono_mb_emit_ldloc (mb, 0);
1969 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1970 mono_mb_emit_byte (mb, CEE_STIND_REF);
1972 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1973 mono_mb_emit_ldloc (mb, 1);
1974 mono_mb_emit_ldloc (mb, 0);
1975 mono_mb_emit_icall (mb, mono_string_from_utf16);
1976 mono_mb_emit_byte (mb, CEE_STIND_REF);
1978 case MONO_MARSHAL_CONV_STR_LPTSTR:
1979 mono_mb_emit_ldloc (mb, 1);
1980 mono_mb_emit_ldloc (mb, 0);
1981 mono_mb_emit_byte (mb, CEE_LDIND_I);
1982 #ifdef PLATFORM_WIN32
1983 mono_mb_emit_icall (mb, mono_string_from_utf16);
1985 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1987 mono_mb_emit_byte (mb, CEE_STIND_REF);
1989 case MONO_MARSHAL_CONV_STR_LPSTR:
1990 mono_mb_emit_ldloc (mb, 1);
1991 mono_mb_emit_ldloc (mb, 0);
1992 mono_mb_emit_byte (mb, CEE_LDIND_I);
1993 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1994 mono_mb_emit_byte (mb, CEE_STIND_REF);
1996 case MONO_MARSHAL_CONV_STR_LPWSTR:
1997 mono_mb_emit_ldloc (mb, 1);
1998 mono_mb_emit_ldloc (mb, 0);
1999 mono_mb_emit_byte (mb, CEE_LDIND_I);
2000 mono_mb_emit_icall (mb, mono_string_from_utf16);
2001 mono_mb_emit_byte (mb, CEE_STIND_REF);
2003 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2004 MonoClass *klass = mono_class_from_mono_type (type);
2005 int src_var, dst_var;
2007 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2008 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2010 /* *dst = new object */
2011 mono_mb_emit_ldloc (mb, 1);
2012 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2013 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
2014 mono_mb_emit_byte (mb, CEE_STIND_REF);
2016 /* save the old src pointer */
2017 mono_mb_emit_ldloc (mb, 0);
2018 mono_mb_emit_stloc (mb, src_var);
2019 /* save the old dst pointer */
2020 mono_mb_emit_ldloc (mb, 1);
2021 mono_mb_emit_stloc (mb, dst_var);
2023 /* dst = pointer to newly created object data */
2024 mono_mb_emit_ldloc (mb, 1);
2025 mono_mb_emit_byte (mb, CEE_LDIND_I);
2026 mono_mb_emit_icon (mb, sizeof (MonoObject));
2027 mono_mb_emit_byte (mb, CEE_ADD);
2028 mono_mb_emit_stloc (mb, 1);
2030 emit_struct_conv (mb, klass, TRUE);
2032 /* restore the old src pointer */
2033 mono_mb_emit_ldloc (mb, src_var);
2034 mono_mb_emit_stloc (mb, 0);
2035 /* restore the old dst pointer */
2036 mono_mb_emit_ldloc (mb, dst_var);
2037 mono_mb_emit_stloc (mb, 1);
2040 case MONO_MARSHAL_CONV_DEL_FTN: {
2041 MonoClass *klass = mono_class_from_mono_type (type);
2043 mono_mb_emit_ldloc (mb, 1);
2044 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2045 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2046 mono_mb_emit_ldloc (mb, 0);
2047 mono_mb_emit_byte (mb, CEE_LDIND_I);
2048 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
2049 mono_mb_emit_byte (mb, CEE_STIND_REF);
2052 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
2053 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
2055 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2056 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
2057 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
2058 static MonoClass* com_interop_proxy_class = NULL;
2059 static MonoMethod* com_interop_proxy_get_proxy = NULL;
2060 static MonoMethod* get_transparent_proxy = NULL;
2062 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
2063 MonoClass *klass = NULL;
2065 /* COM types are initialized lazily */
2066 mono_init_com_types ();
2068 klass = mono_class_from_mono_type (type);
2070 mono_mb_emit_ldloc (mb, 1);
2071 mono_mb_emit_byte (mb, CEE_LDNULL);
2072 mono_mb_emit_byte (mb, CEE_STIND_REF);
2074 mono_mb_emit_ldloc (mb, 0);
2075 mono_mb_emit_byte (mb, CEE_LDIND_I);
2076 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2078 /* load dst to store later */
2079 mono_mb_emit_ldloc (mb, 1);
2081 mono_mb_emit_ldloc (mb, 0);
2082 mono_mb_emit_byte (mb, CEE_LDIND_I);
2083 mono_mb_emit_icon (mb, TRUE);
2084 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2085 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
2087 if (!com_interop_proxy_class)
2088 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
2089 if (!com_interop_proxy_get_proxy)
2090 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
2091 if (!get_transparent_proxy)
2092 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
2094 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
2096 mono_mb_emit_ldloc (mb, 0);
2097 mono_mb_emit_byte (mb, CEE_LDIND_I);
2098 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
2099 mono_mb_emit_icall (mb, type_from_handle);
2100 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
2101 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
2102 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2104 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
2106 mono_mb_emit_byte (mb, CEE_STIND_REF);
2107 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2109 /* is already managed object */
2110 mono_mb_patch_short_branch (mb, pos_ccw);
2111 mono_mb_emit_ldloc (mb, 0);
2112 mono_mb_emit_byte (mb, CEE_LDIND_I);
2113 mono_mb_emit_icon (mb, TRUE);
2114 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2116 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2118 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
2120 mono_mb_emit_byte (mb, CEE_STIND_REF);
2122 mono_mb_patch_short_branch (mb, pos_end);
2124 mono_mb_patch_short_branch (mb, pos_null);
2128 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2130 * Passing SafeHandles as ref does not allow the unmanaged code
2131 * to change the SafeHandle value. If the value is changed,
2132 * we should issue a diagnostic exception (NotSupportedException)
2133 * that informs the user that changes to handles in unmanaged code
2136 * Since we currently have no access to the original
2137 * SafeHandle that was used during the marshalling,
2138 * for now we just ignore this, and ignore/discard any
2139 * changes that might have happened to the handle.
2144 case MONO_MARSHAL_CONV_HANDLEREF: {
2146 * Passing HandleRefs in a struct that is ref()ed does not
2147 * copy the values back to the HandleRef
2152 case MONO_MARSHAL_CONV_STR_BSTR:
2153 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
2154 case MONO_MARSHAL_CONV_STR_TBSTR:
2155 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
2157 g_warning ("marshaling conversion %d not implemented", conv);
2158 g_assert_not_reached ();
2163 conv_to_icall (MonoMarshalConv conv)
2166 case MONO_MARSHAL_CONV_STR_LPWSTR:
2167 return mono_marshal_string_to_utf16;
2168 case MONO_MARSHAL_CONV_LPWSTR_STR:
2169 return mono_string_from_utf16;
2170 case MONO_MARSHAL_CONV_LPSTR_STR:
2171 return mono_string_new_wrapper;
2172 case MONO_MARSHAL_CONV_STR_LPTSTR:
2173 #ifdef PLATFORM_WIN32
2174 return mono_marshal_string_to_utf16;
2176 return mono_string_to_lpstr;
2178 case MONO_MARSHAL_CONV_STR_LPSTR:
2179 return mono_string_to_lpstr;
2180 case MONO_MARSHAL_CONV_STR_BSTR:
2181 return mono_string_to_bstr;
2182 case MONO_MARSHAL_CONV_BSTR_STR:
2183 return mono_string_from_bstr;
2184 case MONO_MARSHAL_CONV_STR_TBSTR:
2185 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
2186 return mono_string_to_ansibstr;
2187 case MONO_MARSHAL_CONV_SB_LPSTR:
2188 return mono_string_builder_to_utf8;
2189 case MONO_MARSHAL_CONV_SB_LPTSTR:
2190 #ifdef PLATFORM_WIN32
2191 return mono_string_builder_to_utf16;
2193 return mono_string_builder_to_utf8;
2195 case MONO_MARSHAL_CONV_SB_LPWSTR:
2196 return mono_string_builder_to_utf16;
2197 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
2198 return mono_array_to_savearray;
2199 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
2200 return mono_array_to_lparray;
2201 case MONO_MARSHAL_CONV_DEL_FTN:
2202 return mono_delegate_to_ftnptr;
2203 case MONO_MARSHAL_CONV_FTN_DEL:
2204 return mono_ftnptr_to_delegate;
2205 case MONO_MARSHAL_CONV_LPSTR_SB:
2206 return mono_string_utf8_to_builder;
2207 case MONO_MARSHAL_CONV_LPTSTR_SB:
2208 #ifdef PLATFORM_WIN32
2209 return mono_string_utf16_to_builder;
2211 return mono_string_utf8_to_builder;
2213 case MONO_MARSHAL_CONV_LPWSTR_SB:
2214 return mono_string_utf16_to_builder;
2215 case MONO_MARSHAL_FREE_ARRAY:
2216 return mono_marshal_free_array;
2217 case MONO_MARSHAL_CONV_STR_BYVALSTR:
2218 return mono_string_to_byvalstr;
2219 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
2220 return mono_string_to_byvalwstr;
2222 g_assert_not_reached ();
2229 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
2234 case MONO_MARSHAL_CONV_BOOL_I4:
2235 mono_mb_emit_ldloc (mb, 1);
2236 mono_mb_emit_ldloc (mb, 0);
2237 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2238 mono_mb_emit_byte (mb, CEE_STIND_I4);
2240 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
2241 mono_mb_emit_ldloc (mb, 1);
2242 mono_mb_emit_ldloc (mb, 0);
2243 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2244 mono_mb_emit_byte (mb, CEE_NEG);
2245 mono_mb_emit_byte (mb, CEE_STIND_I2);
2247 case MONO_MARSHAL_CONV_STR_LPWSTR:
2248 case MONO_MARSHAL_CONV_STR_LPSTR:
2249 case MONO_MARSHAL_CONV_STR_LPTSTR:
2250 case MONO_MARSHAL_CONV_STR_BSTR:
2251 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
2252 case MONO_MARSHAL_CONV_STR_TBSTR: {
2255 /* free space if free == true */
2256 mono_mb_emit_ldloc (mb, 2);
2257 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2258 mono_mb_emit_ldloc (mb, 1);
2259 mono_mb_emit_byte (mb, CEE_LDIND_I);
2260 mono_mb_emit_icall (mb, g_free);
2261 mono_mb_patch_short_branch (mb, pos);
2263 mono_mb_emit_ldloc (mb, 1);
2264 mono_mb_emit_ldloc (mb, 0);
2265 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2266 mono_mb_emit_icall (mb, conv_to_icall (conv));
2267 mono_mb_emit_byte (mb, CEE_STIND_I);
2270 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
2271 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
2272 case MONO_MARSHAL_CONV_DEL_FTN:
2273 mono_mb_emit_ldloc (mb, 1);
2274 mono_mb_emit_ldloc (mb, 0);
2275 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2276 mono_mb_emit_icall (mb, conv_to_icall (conv));
2277 mono_mb_emit_byte (mb, CEE_STIND_I);
2279 case MONO_MARSHAL_CONV_STR_BYVALSTR:
2280 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
2283 mono_mb_emit_ldloc (mb, 1); /* dst */
2284 mono_mb_emit_ldloc (mb, 0);
2285 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
2286 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2287 mono_mb_emit_icall (mb, conv_to_icall (conv));
2290 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
2291 MonoClass *eklass = NULL;
2294 if (type->type == MONO_TYPE_SZARRAY) {
2295 eklass = type->data.klass;
2297 g_assert_not_reached ();
2300 if (eklass->valuetype)
2301 esize = mono_class_native_size (eklass, NULL);
2303 esize = sizeof (gpointer);
2305 mono_mb_emit_ldloc (mb, 0);
2306 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2307 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2309 if (eklass->blittable) {
2310 mono_mb_emit_ldloc (mb, 1);
2311 mono_mb_emit_ldloc (mb, 0);
2312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2313 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
2314 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
2315 mono_mb_emit_byte (mb, CEE_PREFIX1);
2316 mono_mb_emit_byte (mb, CEE_CPBLK);
2318 int array_var, src_var, dst_var, index_var;
2319 guint32 label2, label3;
2321 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2322 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2323 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2326 mono_mb_emit_ldloc (mb, 0);
2327 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2328 mono_mb_emit_stloc (mb, array_var);
2330 /* save the old src pointer */
2331 mono_mb_emit_ldloc (mb, 0);
2332 mono_mb_emit_stloc (mb, src_var);
2333 /* save the old dst pointer */
2334 mono_mb_emit_ldloc (mb, 1);
2335 mono_mb_emit_stloc (mb, dst_var);
2337 /* Emit marshalling loop */
2338 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2339 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2340 mono_mb_emit_stloc (mb, index_var);
2344 mono_mb_emit_ldloc (mb, index_var);
2345 mono_mb_emit_ldloc (mb, array_var);
2346 mono_mb_emit_byte (mb, CEE_LDLEN);
2347 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2350 mono_mb_emit_ldloc (mb, array_var);
2351 mono_mb_emit_ldloc (mb, index_var);
2352 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2353 mono_mb_emit_stloc (mb, 0);
2355 /* dst is already set */
2357 /* Do the conversion */
2358 emit_struct_conv (mb, eklass, FALSE);
2361 mono_mb_emit_add_to_local (mb, index_var, 1);
2363 mono_mb_emit_byte (mb, CEE_BR);
2364 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
2366 mono_mb_patch_branch (mb, label3);
2368 /* restore the old src pointer */
2369 mono_mb_emit_ldloc (mb, src_var);
2370 mono_mb_emit_stloc (mb, 0);
2371 /* restore the old dst pointer */
2372 mono_mb_emit_ldloc (mb, dst_var);
2373 mono_mb_emit_stloc (mb, 1);
2376 mono_mb_patch_branch (mb, pos);
2379 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2380 mono_mb_emit_ldloc (mb, 0);
2381 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2382 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2384 mono_mb_emit_ldloc (mb, 1);
2385 mono_mb_emit_ldloc (mb, 0);
2386 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2387 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
2388 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2389 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2390 mono_mb_patch_short_branch (mb, pos);
2393 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2394 int src_var, dst_var;
2396 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2397 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2399 mono_mb_emit_ldloc (mb, 0);
2400 mono_mb_emit_byte (mb, CEE_LDIND_I);
2401 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2403 /* save the old src pointer */
2404 mono_mb_emit_ldloc (mb, 0);
2405 mono_mb_emit_stloc (mb, src_var);
2406 /* save the old dst pointer */
2407 mono_mb_emit_ldloc (mb, 1);
2408 mono_mb_emit_stloc (mb, dst_var);
2410 /* src = pointer to object data */
2411 mono_mb_emit_ldloc (mb, 0);
2412 mono_mb_emit_byte (mb, CEE_LDIND_I);
2413 mono_mb_emit_icon (mb, sizeof (MonoObject));
2414 mono_mb_emit_byte (mb, CEE_ADD);
2415 mono_mb_emit_stloc (mb, 0);
2417 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2419 /* restore the old src pointer */
2420 mono_mb_emit_ldloc (mb, src_var);
2421 mono_mb_emit_stloc (mb, 0);
2422 /* restore the old dst pointer */
2423 mono_mb_emit_ldloc (mb, dst_var);
2424 mono_mb_emit_stloc (mb, 1);
2426 mono_mb_patch_branch (mb, pos);
2429 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2430 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2431 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2432 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2434 /* COM types are initialized lazily */
2435 mono_init_com_types ();
2438 mono_mb_emit_ldloc (mb, 1);
2439 mono_mb_emit_icon (mb, 0);
2440 mono_mb_emit_byte (mb, CEE_CONV_U);
2441 mono_mb_emit_byte (mb, CEE_STIND_I);
2443 mono_mb_emit_ldloc (mb, 0);
2444 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2446 // if null just break, dst was already inited to 0
2447 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2449 mono_mb_emit_ldloc (mb, 0);
2450 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2451 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2452 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2454 // load dst to store later
2455 mono_mb_emit_ldloc (mb, 1);
2458 mono_mb_emit_ldloc (mb, 0);
2459 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2460 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2461 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2463 /* load the RCW from the ComInteropProxy*/
2464 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2465 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2467 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2468 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2469 mono_mb_emit_icon (mb, TRUE);
2470 mono_mb_emit_icall (mb, cominterop_get_interface);
2473 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2474 static MonoProperty* iunknown = NULL;
2477 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2478 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2480 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2481 static MonoProperty* idispatch = NULL;
2484 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2485 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2488 g_assert_not_reached ();
2490 mono_mb_emit_byte (mb, CEE_STIND_I);
2491 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2494 mono_mb_patch_short_branch (mb, pos_rcw);
2495 /* load dst to store later */
2496 mono_mb_emit_ldloc (mb, 1);
2498 mono_mb_emit_ldloc (mb, 0);
2499 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2501 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2502 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2503 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2504 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2505 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2506 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2508 g_assert_not_reached ();
2509 mono_mb_emit_icall (mb, cominterop_get_ccw);
2510 mono_mb_emit_byte (mb, CEE_STIND_I);
2512 mono_mb_patch_short_branch (mb, pos_end);
2513 mono_mb_patch_short_branch (mb, pos_null);
2517 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2518 int dar_release_slot, pos;
2520 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2523 * The following is ifdefed-out, because I have no way of doing the
2524 * DangerousRelease when destroying the structure
2527 /* set release = false */
2528 mono_mb_emit_icon (mb, 0);
2529 mono_mb_emit_stloc (mb, dar_release_slot);
2530 if (!sh_dangerous_add_ref)
2531 init_safe_handle ();
2533 /* safehandle.DangerousAddRef (ref release) */
2534 mono_mb_emit_ldloc (mb, 0); /* the source */
2535 mono_mb_emit_byte (mb, CEE_LDIND_I);
2536 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2537 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2539 mono_mb_emit_ldloc (mb, 0);
2540 mono_mb_emit_byte (mb, CEE_LDIND_I);
2541 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2542 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2543 mono_mb_patch_branch (mb, pos);
2545 /* Pull the handle field from SafeHandle */
2546 mono_mb_emit_ldloc (mb, 1);
2547 mono_mb_emit_ldloc (mb, 0);
2548 mono_mb_emit_byte (mb, CEE_LDIND_I);
2549 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2550 mono_mb_emit_byte (mb, CEE_LDIND_I);
2551 mono_mb_emit_byte (mb, CEE_STIND_I);
2555 case MONO_MARSHAL_CONV_HANDLEREF: {
2556 mono_mb_emit_ldloc (mb, 1);
2557 mono_mb_emit_ldloc (mb, 0);
2558 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2559 mono_mb_emit_byte (mb, CEE_ADD);
2560 mono_mb_emit_byte (mb, CEE_LDIND_I);
2561 mono_mb_emit_byte (mb, CEE_STIND_I);
2566 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2567 MonoException *exc = mono_get_exception_not_implemented (msg);
2570 mono_raise_exception (exc);
2576 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2578 MonoMarshalType *info;
2582 emit_struct_conv(mb, klass->parent, to_object);
2584 info = mono_marshal_load_type_info (klass);
2586 if (info->native_size == 0)
2589 if (klass->blittable) {
2590 int msize = mono_class_value_size (klass, NULL);
2591 g_assert (msize == info->native_size);
2592 mono_mb_emit_ldloc (mb, 1);
2593 mono_mb_emit_ldloc (mb, 0);
2594 mono_mb_emit_icon (mb, msize);
2595 mono_mb_emit_byte (mb, CEE_PREFIX1);
2596 mono_mb_emit_byte (mb, CEE_CPBLK);
2598 mono_mb_emit_add_to_local (mb, 0, msize);
2599 mono_mb_emit_add_to_local (mb, 1, msize);
2603 for (i = 0; i < info->num_fields; i++) {
2604 MonoMarshalNative ntype;
2605 MonoMarshalConv conv;
2606 MonoType *ftype = info->fields [i].field->type;
2609 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2611 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2614 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2617 msize = klass->instance_size - info->fields [i].field->offset;
2618 usize = info->native_size - info->fields [i].offset;
2620 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2621 usize = info->fields [i + 1].offset - info->fields [i].offset;
2624 if (klass != mono_defaults.safehandle_class){
2626 * FIXME: Should really check for usize==0 and msize>0, but we apply
2627 * the layout to the managed structure as well.
2630 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2631 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2632 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2633 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2634 "reference field at the same offset as another field.",
2635 mono_type_full_name (&klass->byval_arg));
2638 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2639 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2640 mono_type_full_name (&klass->byval_arg));
2645 case MONO_MARSHAL_CONV_NONE: {
2648 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2649 ftype->type == MONO_TYPE_U) {
2650 mono_mb_emit_ldloc (mb, 1);
2651 mono_mb_emit_ldloc (mb, 0);
2652 mono_mb_emit_byte (mb, CEE_LDIND_I);
2653 mono_mb_emit_byte (mb, CEE_STIND_I);
2664 case MONO_TYPE_BOOLEAN:
2667 case MONO_TYPE_CHAR:
2673 mono_mb_emit_ldloc (mb, 1);
2674 mono_mb_emit_ldloc (mb, 0);
2675 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2676 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2678 case MONO_TYPE_VALUETYPE: {
2679 int src_var, dst_var;
2681 if (ftype->data.klass->enumtype) {
2682 ftype = ftype->data.klass->enum_basetype;
2686 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2687 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2689 /* save the old src pointer */
2690 mono_mb_emit_ldloc (mb, 0);
2691 mono_mb_emit_stloc (mb, src_var);
2692 /* save the old dst pointer */
2693 mono_mb_emit_ldloc (mb, 1);
2694 mono_mb_emit_stloc (mb, dst_var);
2696 emit_struct_conv (mb, ftype->data.klass, to_object);
2698 /* restore the old src pointer */
2699 mono_mb_emit_ldloc (mb, src_var);
2700 mono_mb_emit_stloc (mb, 0);
2701 /* restore the old dst pointer */
2702 mono_mb_emit_ldloc (mb, dst_var);
2703 mono_mb_emit_stloc (mb, 1);
2706 case MONO_TYPE_OBJECT: {
2707 mono_init_com_types ();
2709 static MonoMethod *variant_clear = NULL;
2710 static MonoMethod *get_object_for_native_variant = NULL;
2713 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2714 if (!get_object_for_native_variant)
2715 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2716 mono_mb_emit_ldloc (mb, 1);
2717 mono_mb_emit_ldloc (mb, 0);
2718 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2719 mono_mb_emit_byte (mb, CEE_STIND_REF);
2721 mono_mb_emit_ldloc (mb, 0);
2722 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2725 static MonoMethod *get_native_variant_for_object = NULL;
2727 if (!get_native_variant_for_object)
2728 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2730 mono_mb_emit_ldloc (mb, 0);
2731 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2732 mono_mb_emit_ldloc (mb, 1);
2733 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2739 g_warning ("marshaling type %02x not implemented", ftype->type);
2740 g_assert_not_reached ();
2745 int src_var, dst_var;
2747 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2748 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2750 /* save the old src pointer */
2751 mono_mb_emit_ldloc (mb, 0);
2752 mono_mb_emit_stloc (mb, src_var);
2753 /* save the old dst pointer */
2754 mono_mb_emit_ldloc (mb, 1);
2755 mono_mb_emit_stloc (mb, dst_var);
2758 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2760 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2762 /* restore the old src pointer */
2763 mono_mb_emit_ldloc (mb, src_var);
2764 mono_mb_emit_stloc (mb, 0);
2765 /* restore the old dst pointer */
2766 mono_mb_emit_ldloc (mb, dst_var);
2767 mono_mb_emit_stloc (mb, 1);
2772 mono_mb_emit_add_to_local (mb, 0, usize);
2773 mono_mb_emit_add_to_local (mb, 1, msize);
2775 mono_mb_emit_add_to_local (mb, 0, msize);
2776 mono_mb_emit_add_to_local (mb, 1, usize);
2782 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2784 /* Call DestroyStructure */
2785 /* FIXME: Only do this if needed */
2786 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2787 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2788 mono_mb_emit_ldloc (mb, struct_var);
2789 mono_mb_emit_icall (mb, mono_struct_delete_old);
2793 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2797 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2798 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2799 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2801 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2802 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2804 mono_mb_emit_icall (mb, checkpoint_func);
2806 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
2810 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2812 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2815 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2819 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2821 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2824 static MonoAsyncResult *
2825 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2827 MonoMethodMessage *msg;
2828 MonoDelegate *async_callback;
2832 MonoMethod *method = NULL, *method2 = NULL;
2834 g_assert (delegate);
2836 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2838 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2839 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2841 /* If the target is a proxy, make a direct call. Is proxy's work
2842 // to make the call asynchronous.
2844 MonoAsyncResult *ares;
2846 MonoArray *out_args;
2848 method = delegate->method;
2850 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2851 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2852 g_assert(handle != NULL);
2853 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2854 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2855 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2856 MONO_OBJECT_SETREF (msg, async_result, ares);
2857 msg->call_type = CallType_BeginInvoke;
2859 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2864 klass = delegate->object.vtable->klass;
2866 method = mono_get_delegate_invoke (klass);
2867 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2870 g_assert (method != NULL);
2872 im = mono_get_delegate_invoke (method->klass);
2873 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2875 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2879 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2881 int i, params_var, tmp_var;
2883 /* allocate local (pointer) *params[] */
2884 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2885 /* allocate local (pointer) tmp */
2886 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2888 /* alloate space on stack to store an array of pointers to the arguments */
2889 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2890 mono_mb_emit_byte (mb, CEE_PREFIX1);
2891 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2892 mono_mb_emit_stloc (mb, params_var);
2895 mono_mb_emit_ldloc (mb, params_var);
2896 mono_mb_emit_stloc (mb, tmp_var);
2898 if (save_this && sig->hasthis) {
2899 mono_mb_emit_ldloc (mb, tmp_var);
2900 mono_mb_emit_ldarg_addr (mb, 0);
2901 mono_mb_emit_byte (mb, CEE_STIND_I);
2902 /* tmp = tmp + sizeof (gpointer) */
2903 if (sig->param_count)
2904 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2908 for (i = 0; i < sig->param_count; i++) {
2909 mono_mb_emit_ldloc (mb, tmp_var);
2910 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2911 mono_mb_emit_byte (mb, CEE_STIND_I);
2912 /* tmp = tmp + sizeof (gpointer) */
2913 if (i < (sig->param_count - 1))
2914 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2921 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2925 GString *res = g_string_new ("");
2928 g_string_append (res, prefix);
2929 g_string_append_c (res, '_');
2932 mono_type_get_desc (res, sig->ret, FALSE);
2934 for (i = 0; i < sig->param_count; ++i) {
2935 g_string_append_c (res, '_');
2936 mono_type_get_desc (res, sig->params [i], FALSE);
2939 g_string_free (res, FALSE);
2944 * mono_marshal_get_string_encoding:
2946 * Return the string encoding which should be used for a given parameter.
2948 static MonoMarshalNative
2949 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2951 /* First try the parameter marshal info */
2953 if (spec->native == MONO_NATIVE_LPARRAY) {
2954 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2955 return spec->data.array_data.elem_type;
2958 return spec->native;
2962 return MONO_NATIVE_LPSTR;
2964 /* Then try the method level marshal info */
2965 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2966 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2967 return MONO_NATIVE_LPSTR;
2968 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2969 return MONO_NATIVE_LPWSTR;
2970 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2971 #ifdef PLATFORM_WIN32
2972 return MONO_NATIVE_LPWSTR;
2974 return MONO_NATIVE_LPSTR;
2977 return MONO_NATIVE_LPSTR;
2981 static MonoMarshalConv
2982 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2984 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2987 case MONO_NATIVE_LPWSTR:
2988 return MONO_MARSHAL_CONV_STR_LPWSTR;
2989 case MONO_NATIVE_LPSTR:
2990 return MONO_MARSHAL_CONV_STR_LPSTR;
2991 case MONO_NATIVE_LPTSTR:
2992 return MONO_MARSHAL_CONV_STR_LPTSTR;
2993 case MONO_NATIVE_BSTR:
2994 return MONO_MARSHAL_CONV_STR_BSTR;
3000 static MonoMarshalConv
3001 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
3003 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3006 case MONO_NATIVE_LPWSTR:
3007 return MONO_MARSHAL_CONV_SB_LPWSTR;
3009 case MONO_NATIVE_LPSTR:
3010 return MONO_MARSHAL_CONV_SB_LPSTR;
3012 case MONO_NATIVE_LPTSTR:
3013 return MONO_MARSHAL_CONV_SB_LPTSTR;
3020 static MonoMarshalConv
3021 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
3023 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3028 case MONO_NATIVE_LPWSTR:
3029 return MONO_MARSHAL_CONV_LPWSTR_STR;
3030 case MONO_NATIVE_LPSTR:
3031 return MONO_MARSHAL_CONV_LPSTR_STR;
3032 case MONO_NATIVE_LPTSTR:
3033 return MONO_MARSHAL_CONV_LPTSTR_STR;
3034 case MONO_NATIVE_BSTR:
3035 return MONO_MARSHAL_CONV_BSTR_STR;
3041 static MonoMarshalConv
3042 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
3044 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3049 case MONO_NATIVE_LPWSTR:
3051 * mono_string_builder_to_utf16 does not allocate a
3052 * new buffer, so no need to free it.
3055 return MONO_MARSHAL_CONV_LPWSTR_SB;
3056 case MONO_NATIVE_LPSTR:
3057 return MONO_MARSHAL_CONV_LPSTR_SB;
3059 case MONO_NATIVE_LPTSTR:
3060 return MONO_MARSHAL_CONV_LPTSTR_SB;
3068 * Return whenever a field of a native structure or an array member needs to
3072 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
3074 MonoMarshalNative encoding;
3075 MonoMarshalConv conv;
3078 case MONO_TYPE_VALUETYPE:
3079 /* FIXME: Optimize this */
3081 case MONO_TYPE_OBJECT:
3082 case MONO_TYPE_CLASS:
3083 if (t->data.klass == mono_defaults.stringbuilder_class) {
3085 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
3089 case MONO_TYPE_STRING:
3090 encoding = mono_marshal_get_string_encoding (piinfo, spec);
3091 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
3097 static inline MonoMethod*
3098 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
3102 mono_marshal_lock ();
3103 res = g_hash_table_lookup (cache, key);
3104 mono_marshal_unlock ();
3108 /* Create the method from the builder and place it in the cache */
3109 static inline MonoMethod*
3110 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
3111 MonoMethodBuilder *mb, MonoMethodSignature *sig,
3116 mono_marshal_lock ();
3117 res = g_hash_table_lookup (cache, key);
3118 mono_marshal_unlock ();
3121 newm = mono_mb_create_method (mb, sig, max_stack);
3122 mono_marshal_lock ();
3123 res = g_hash_table_lookup (cache, key);
3126 g_hash_table_insert (cache, key, res);
3127 g_hash_table_insert (wrapper_hash, res, key);
3128 mono_marshal_unlock ();
3130 mono_marshal_unlock ();
3131 mono_free_method (newm);
3139 static inline MonoMethod*
3140 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
3142 MonoMethod *res = NULL;
3143 MonoRemotingMethods *wrps;
3145 mono_marshal_lock ();
3146 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
3149 switch (wrapper_type) {
3150 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
3151 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
3152 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
3153 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
3157 /* it is important to do the unlock after the load from wrps, since in
3158 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
3159 * to take the loader lock and some other thread may set the fields.
3161 mono_marshal_unlock ();
3165 /* Create the method from the builder and place it in the cache */
3166 static inline MonoMethod*
3167 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
3168 MonoMethodSignature *sig, int max_stack)
3170 MonoMethod **res = NULL;
3171 MonoRemotingMethods *wrps;
3172 GHashTable *cache = key->klass->image->remoting_invoke_cache;
3174 mono_marshal_lock ();
3175 wrps = g_hash_table_lookup (cache, key);
3177 wrps = g_new0 (MonoRemotingMethods, 1);
3178 g_hash_table_insert (cache, key, wrps);
3181 switch (mb->method->wrapper_type) {
3182 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
3183 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
3184 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
3185 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
3186 default: g_assert_not_reached (); break;
3188 mono_marshal_unlock ();
3192 newm = mono_mb_create_method (mb, sig, max_stack);
3194 mono_marshal_lock ();
3197 g_hash_table_insert (wrapper_hash, *res, key);
3198 mono_marshal_unlock ();
3200 mono_marshal_unlock ();
3201 mono_free_method (newm);
3209 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
3213 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
3216 mono_marshal_lock ();
3217 res = g_hash_table_lookup (wrapper_hash, wrapper);
3218 mono_marshal_unlock ();
3223 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3225 MonoMethodSignature *sig;
3226 MonoMethodBuilder *mb;
3232 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3233 !strcmp (method->name, "BeginInvoke"));
3235 sig = signature_no_pinvoke (method);
3237 cache = method->klass->image->delegate_begin_invoke_cache;
3238 if ((res = mono_marshal_find_in_cache (cache, sig)))
3241 g_assert (sig->hasthis);
3243 name = mono_signature_to_name (sig, "begin_invoke");
3244 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3247 mb->method->save_lmf = 1;
3249 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3251 mono_mb_emit_ldarg (mb, 0);
3252 mono_mb_emit_ldloc (mb, params_var);
3253 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3254 emit_thread_interrupt_checkpoint (mb);
3255 mono_mb_emit_byte (mb, CEE_RET);
3257 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3263 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3265 MonoDomain *domain = mono_domain_get ();
3266 MonoAsyncResult *ares;
3267 MonoMethod *method = NULL;
3268 MonoMethodSignature *sig;
3269 MonoMethodMessage *msg;
3270 MonoObject *res, *exc;
3271 MonoArray *out_args;
3274 g_assert (delegate);
3276 if (!delegate->method_info) {
3277 g_assert (delegate->method);
3278 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
3281 if (!delegate->method_info || !delegate->method_info->method)
3282 g_assert_not_reached ();
3284 klass = delegate->object.vtable->klass;
3286 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3287 g_assert (method != NULL);
3289 sig = signature_no_pinvoke (method);
3291 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3293 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
3296 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
3297 mono_raise_exception (mono_get_exception_invalid_operation (
3298 "The IAsyncResult object provided does not match this delegate."));
3302 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
3303 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3304 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
3305 mono_message_init (domain, msg, delegate->method_info, NULL);
3306 msg->call_type = CallType_EndInvoke;
3307 MONO_OBJECT_SETREF (msg, async_result, ares);
3308 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
3310 res = mono_thread_pool_finish (ares, &out_args, &exc);
3314 if (((MonoException*)exc)->stack_trace) {
3315 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3317 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3319 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3322 mono_raise_exception ((MonoException*)exc);
3325 mono_method_return_message_restore (method, params, out_args);
3330 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3332 MonoType *t = mono_type_get_underlying_type (return_type);
3334 if (return_type->byref)
3335 return_type = &mono_defaults.int_class->byval_arg;
3338 case MONO_TYPE_VOID:
3339 g_assert_not_reached ();
3342 case MONO_TYPE_STRING:
3343 case MONO_TYPE_CLASS:
3344 case MONO_TYPE_OBJECT:
3345 case MONO_TYPE_ARRAY:
3346 case MONO_TYPE_SZARRAY:
3350 case MONO_TYPE_BOOLEAN:
3353 case MONO_TYPE_CHAR:
3363 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3364 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3366 case MONO_TYPE_GENERICINST:
3367 if (!mono_type_generic_inst_is_valuetype (return_type))
3370 case MONO_TYPE_VALUETYPE: {
3371 MonoClass *klass = mono_class_from_mono_type (return_type);
3372 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3373 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3377 g_warning ("type 0x%x not handled", return_type->type);
3378 g_assert_not_reached ();
3381 mono_mb_emit_byte (mb, CEE_RET);
3385 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3387 MonoMethodSignature *sig;
3388 MonoMethodBuilder *mb;
3394 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3395 !strcmp (method->name, "EndInvoke"));
3397 sig = signature_no_pinvoke (method);
3399 cache = method->klass->image->delegate_end_invoke_cache;
3400 if ((res = mono_marshal_find_in_cache (cache, sig)))
3403 g_assert (sig->hasthis);
3405 name = mono_signature_to_name (sig, "end_invoke");
3406 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3409 mb->method->save_lmf = 1;
3411 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldloc (mb, params_var);
3415 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3416 emit_thread_interrupt_checkpoint (mb);
3418 if (sig->ret->type == MONO_TYPE_VOID) {
3419 mono_mb_emit_byte (mb, CEE_POP);
3420 mono_mb_emit_byte (mb, CEE_RET);
3422 mono_mb_emit_restore_result (mb, sig->ret);
3424 res = mono_mb_create_and_cache (cache, sig,
3425 mb, sig, sig->param_count + 16);
3432 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3434 MonoMethodMessage *msg;
3435 MonoTransparentProxy *this;
3436 MonoObject *res, *exc;
3437 MonoArray *out_args;
3439 this = *((MonoTransparentProxy **)params [0]);
3442 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3444 /* skip the this pointer */
3447 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3450 MonoMethodSignature *sig = mono_method_signature (method);
3451 int count = sig->param_count;
3452 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3454 for (i=0; i<count; i++) {
3455 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3456 if (class->valuetype) {
3457 if (sig->params [i]->byref)
3458 mparams[i] = *((gpointer *)params [i]);
3460 mparams[i] = params [i];
3462 mparams[i] = *((gpointer**)params [i]);
3466 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3469 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3471 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3474 mono_raise_exception ((MonoException *)exc);
3476 mono_method_return_message_restore (method, params, out_args);
3482 * cominterop_get_native_wrapper_adjusted:
3483 * @method: managed COM Interop method
3485 * Returns: the generated method to call with signature matching
3486 * the unmanaged COM Method signature
3489 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3492 MonoMethodBuilder *mb_native;
3493 MonoMarshalSpec **mspecs;
3494 MonoMethodSignature *sig, *sig_native;
3495 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3498 sig = mono_method_signature (method);
3500 // create unmanaged wrapper
3501 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3502 sig_native = cominterop_method_signature (method);
3504 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3505 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3507 mono_method_get_marshal_info (method, mspecs);
3509 // move managed args up one
3510 for (i = sig->param_count; i >= 1; i--)
3511 mspecs[i+1] = mspecs[i];
3513 // first arg is IntPtr for interface
3516 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3517 // move return spec to last param
3518 if (!MONO_TYPE_IS_VOID (sig->ret))
3519 mspecs[sig_native->param_count] = mspecs[0];
3524 mono_marshal_emit_native_wrapper(method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr);
3526 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3528 mono_mb_free (mb_native);
3530 for (i = sig_native->param_count; i >= 0; i--)
3532 mono_metadata_free_marshal_spec (mspecs [i]);
3539 * cominterop_get_native_wrapper:
3540 * @method: managed method
3542 * Returns: the generated method to call
3545 cominterop_get_native_wrapper (MonoMethod *method)
3549 MonoMethodBuilder *mb;
3550 MonoMethodSignature *sig, *csig;
3554 cache = method->klass->image->cominterop_wrapper_cache;
3555 if ((res = mono_marshal_find_in_cache (cache, method)))
3558 mono_init_com_types ();
3560 sig = mono_method_signature (method);
3561 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3563 /* if method klass is import, that means method
3564 * is really a com call. let interop system emit it.
3566 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3567 /* FIXME: we have to call actual class .ctor
3568 * instead of just __ComObject .ctor.
3570 if (!strcmp(method->name, ".ctor")) {
3571 static MonoMethod *ctor = NULL;
3574 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3575 mono_mb_emit_ldarg (mb, 0);
3576 mono_mb_emit_managed_call (mb, ctor, NULL);
3577 mono_mb_emit_byte (mb, CEE_RET);
3580 static MonoMethod * ThrowExceptionForHR = NULL;
3581 MonoMethod *adjusted_method;
3585 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3587 // add local variables
3588 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3589 if (!MONO_TYPE_IS_VOID (sig->ret))
3590 retval = mono_mb_add_local (mb, sig->ret);
3592 // get the type for the interface the method is defined on
3593 // and then get the underlying COM interface for that type
3594 mono_mb_emit_ldarg (mb, 0);
3595 mono_mb_emit_ptr (mb, method);
3596 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3597 mono_mb_emit_icon (mb, TRUE);
3598 mono_mb_emit_icall (mb, cominterop_get_interface);
3599 mono_mb_emit_stloc (mb, ptr_this);
3601 // arg 1 is unmanaged this pointer
3602 mono_mb_emit_ldloc (mb, ptr_this);
3605 for (i = 1; i <= sig->param_count; i++)
3606 mono_mb_emit_ldarg (mb, i);
3608 // push managed return value as byref last argument
3609 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3610 mono_mb_emit_ldloc_addr (mb, retval);
3612 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3613 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3615 if (!preserve_sig) {
3616 if (!ThrowExceptionForHR)
3617 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3618 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3620 // load return value managed is expecting
3621 if (!MONO_TYPE_IS_VOID (sig->ret))
3622 mono_mb_emit_ldloc (mb, retval);
3625 mono_mb_emit_byte (mb, CEE_RET);
3630 /* Does this case ever get hit? */
3632 char *msg = g_strdup ("non imported interfaces on \
3633 imported classes is not yet implemented.");
3634 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3636 csig = signature_dup (method->klass->image, sig);
3638 res = mono_mb_create_and_cache (cache, method,
3639 mb, csig, csig->param_count + 16);
3645 * cominterop_get_invoke:
3646 * @method: managed method
3648 * Returns: the generated method that calls the underlying __ComObject
3649 * rather than the proxy object.
3652 cominterop_get_invoke (MonoMethod *method)
3654 MonoMethodSignature *sig;
3655 MonoMethodBuilder *mb;
3658 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3662 if ((res = mono_marshal_find_in_cache (cache, method)))
3665 sig = signature_no_pinvoke (method);
3667 /* we cant remote methods without this pointer */
3671 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3673 /* get real proxy object, which is a ComInteropProxy in this case*/
3674 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3675 mono_mb_emit_ldarg (mb, 0);
3676 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3677 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3679 /* load the RCW from the ComInteropProxy*/
3680 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3681 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3683 /* load args and make the call on the RCW */
3684 for (i = 1; i <= sig->param_count; i++)
3685 mono_mb_emit_ldarg (mb, i);
3687 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3688 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3689 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3692 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3693 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3695 mono_mb_emit_op (mb, CEE_CALL, method);
3698 if (!strcmp(method->name, ".ctor")) {
3699 static MonoClass *com_interop_proxy_class = NULL;
3700 static MonoMethod *cache_proxy = NULL;
3702 if (!com_interop_proxy_class)
3703 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3705 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3707 mono_mb_emit_ldarg (mb, 0);
3708 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3709 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3710 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3713 emit_thread_interrupt_checkpoint (mb);
3715 mono_mb_emit_byte (mb, CEE_RET);
3717 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3722 /* Maps a managed object to its unmanaged representation
3723 * i.e. it's COM Callable Wrapper (CCW).
3727 static GHashTable* ccw_hash = NULL;
3729 /* Maps a CCW interface to it's containing CCW.
3730 * Note that a CCW support many interfaces.
3732 * Value: MonoCCWInterface*
3734 static GHashTable* ccw_interface_hash = NULL;
3736 /* Maps the IUnknown value of a RCW to
3737 * it's MonoComInteropProxy*.
3741 static GHashTable* rcw_hash = NULL;
3744 mono_marshal_get_remoting_invoke (MonoMethod *method)
3746 MonoMethodSignature *sig;
3747 MonoMethodBuilder *mb;
3753 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3756 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3757 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3758 return cominterop_get_invoke(method);
3760 sig = signature_no_pinvoke (method);
3762 /* we cant remote methods without this pointer */
3766 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3769 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3770 mb->method->save_lmf = 1;
3772 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3774 mono_mb_emit_ptr (mb, method);
3775 mono_mb_emit_ldloc (mb, params_var);
3776 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3777 emit_thread_interrupt_checkpoint (mb);
3779 if (sig->ret->type == MONO_TYPE_VOID) {
3780 mono_mb_emit_byte (mb, CEE_POP);
3781 mono_mb_emit_byte (mb, CEE_RET);
3783 mono_mb_emit_restore_result (mb, sig->ret);
3786 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3792 /* mono_get_xdomain_marshal_type()
3793 * Returns the kind of marshalling that a type needs for cross domain calls.
3795 static MonoXDomainMarshalType
3796 mono_get_xdomain_marshal_type (MonoType *t)
3799 case MONO_TYPE_VOID:
3800 g_assert_not_reached ();
3804 case MONO_TYPE_BOOLEAN:
3807 case MONO_TYPE_CHAR:
3814 return MONO_MARSHAL_NONE;
3815 case MONO_TYPE_STRING:
3816 return MONO_MARSHAL_COPY;
3817 case MONO_TYPE_ARRAY:
3818 case MONO_TYPE_SZARRAY: {
3819 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3820 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3821 return MONO_MARSHAL_COPY;
3826 return MONO_MARSHAL_SERIALIZE;
3830 /* mono_marshal_xdomain_copy_value
3831 * Makes a copy of "val" suitable for the current domain.
3834 mono_marshal_xdomain_copy_value (MonoObject *val)
3837 if (val == NULL) return NULL;
3839 domain = mono_domain_get ();
3841 switch (mono_object_class (val)->byval_arg.type) {
3842 case MONO_TYPE_VOID:
3843 g_assert_not_reached ();
3847 case MONO_TYPE_BOOLEAN:
3850 case MONO_TYPE_CHAR:
3856 case MONO_TYPE_R8: {
3857 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3859 case MONO_TYPE_STRING: {
3860 MonoString *str = (MonoString *) val;
3861 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3863 case MONO_TYPE_ARRAY:
3864 case MONO_TYPE_SZARRAY: {
3866 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3867 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3868 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3869 if (mt == MONO_MARSHAL_COPY) {
3870 int i, len = mono_array_length (acopy);
3871 for (i = 0; i < len; i++) {
3872 MonoObject *item = mono_array_get (acopy, gpointer, i);
3873 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3876 return (MonoObject *) acopy;
3880 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3881 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3882 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3883 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3884 newsb->length = oldsb->length;
3885 newsb->max_capacity = (gint32)0x7fffffff;
3886 return (MonoObject *) newsb;
3891 /* mono_marshal_xdomain_copy_out_value()
3892 * Copies the contents of the src instance into the dst instance. src and dst
3893 * must have the same type, and if they are arrays, the same size.
3896 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3898 if (src == NULL || dst == NULL) return;
3900 g_assert (mono_object_class (src) == mono_object_class (dst));
3902 switch (mono_object_class (src)->byval_arg.type) {
3903 case MONO_TYPE_ARRAY:
3904 case MONO_TYPE_SZARRAY: {
3905 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3906 if (mt == MONO_MARSHAL_SERIALIZE) return;
3907 if (mt == MONO_MARSHAL_COPY) {
3908 int i, len = mono_array_length ((MonoArray *)dst);
3909 for (i = 0; i < len; i++) {
3910 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3911 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3914 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3920 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3921 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3922 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3924 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)));
3925 dst_sb->cached_str = NULL;
3926 dst_sb->length = src_sb->length;
3931 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3933 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3934 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3938 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3940 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3943 /* mono_marshal_supports_fast_xdomain()
3944 * Returns TRUE if the method can use the fast xdomain wrapper.
3947 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3949 return !method->klass->contextbound &&
3950 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3954 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3956 MonoDomain *current_domain = mono_domain_get ();
3957 MonoDomain *domain = mono_domain_get_by_id (id);
3959 if (!domain || !mono_domain_set (domain, FALSE))
3960 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3963 mono_thread_push_appdomain_ref (domain);
3965 mono_thread_pop_appdomain_ref ();
3967 return current_domain->domain_id;
3971 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3973 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3976 /* mono_marshal_emit_load_domain_method ()
3977 * Loads into the stack a pointer to the code of the provided method for
3978 * the current domain.
3981 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3983 /* We need a pointer to the method for the running domain (not the domain
3984 * that compiles the method).
3986 mono_mb_emit_ptr (mb, method);
3987 mono_mb_emit_icall (mb, mono_compile_method);
3990 /* mono_marshal_check_domain_image ()
3991 * Returns TRUE if the image is loaded in the specified
3992 * application domain.
3995 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
4000 MonoDomain *domain = mono_domain_get_by_id (domain_id);
4004 mono_domain_assemblies_lock (domain);
4005 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
4007 if (ass->image == image)
4010 mono_domain_assemblies_unlock (domain);
4015 /* mono_marshal_get_xappdomain_dispatch ()
4016 * Generates a method that dispatches a method call from another domain into
4017 * the current domain.
4020 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
4022 MonoMethodSignature *sig, *csig;
4023 MonoMethodBuilder *mb;
4025 int i, j, param_index, copy_locals_base;
4026 MonoClass *ret_class = NULL;
4027 int loc_array=0, loc_return=0, loc_serialized_exc=0;
4028 MonoExceptionClause *main_clause;
4029 MonoMethodHeader *header;
4031 gboolean copy_return;
4033 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
4036 sig = mono_method_signature (method);
4037 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
4040 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
4041 csig->params [j++] = &mono_defaults.object_class->byval_arg;
4042 csig->params [j++] = &byte_array_class->this_arg;
4043 csig->params [j++] = &byte_array_class->this_arg;
4044 for (i = 0; i < sig->param_count; i++) {
4045 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
4046 csig->params [j++] = sig->params [i];
4049 csig->ret = sig->ret;
4051 csig->ret = &mono_defaults.void_class->byval_arg;
4053 csig->hasthis = FALSE;
4055 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
4056 mb->method->save_lmf = 1;
4060 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4061 if (complex_count > 0)
4062 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4063 if (sig->ret->type != MONO_TYPE_VOID) {
4064 loc_return = mono_mb_add_local (mb, sig->ret);
4065 ret_class = mono_class_from_mono_type (sig->ret);
4070 mono_loader_lock ();
4071 main_clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
4072 mono_loader_unlock ();
4073 main_clause->try_offset = mb->pos;
4075 /* Clean the call context */
4077 mono_mb_emit_byte (mb, CEE_LDNULL);
4078 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
4079 mono_mb_emit_byte (mb, CEE_POP);
4081 /* Deserialize call data */
4083 mono_mb_emit_ldarg (mb, 1);
4084 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4085 mono_mb_emit_byte (mb, CEE_DUP);
4086 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4088 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4089 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4091 if (complex_count > 0)
4092 mono_mb_emit_stloc (mb, loc_array);
4094 mono_mb_emit_byte (mb, CEE_POP);
4096 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
4098 /* Get the target object */
4100 mono_mb_emit_ldarg (mb, 0);
4101 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
4103 /* Load the arguments */
4105 copy_locals_base = mb->locals;
4106 param_index = 3; // Index of the first non-serialized parameter of this wrapper
4108 for (i = 0; i < sig->param_count; i++) {
4109 MonoType *pt = sig->params [i];
4110 MonoClass *pclass = mono_class_from_mono_type (pt);
4111 switch (marshal_types [i]) {
4112 case MONO_MARSHAL_SERIALIZE: {
4113 /* take the value from the serialized array */
4114 mono_mb_emit_ldloc (mb, loc_array);
4115 mono_mb_emit_icon (mb, j++);
4117 if (pclass->valuetype) {
4118 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4119 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4121 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
4124 if (pclass->valuetype) {
4125 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4126 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4127 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4129 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4130 if (pclass != mono_defaults.object_class) {
4131 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4137 case MONO_MARSHAL_COPY_OUT: {
4138 /* Keep a local copy of the value since we need to copy it back after the call */
4139 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4140 mono_mb_emit_ldarg (mb, param_index++);
4141 mono_marshal_emit_xdomain_copy_value (mb, pclass);
4142 mono_mb_emit_byte (mb, CEE_DUP);
4143 mono_mb_emit_stloc (mb, copy_local);
4146 case MONO_MARSHAL_COPY: {
4147 mono_mb_emit_ldarg (mb, param_index);
4149 mono_mb_emit_byte (mb, CEE_DUP);
4150 mono_mb_emit_byte (mb, CEE_DUP);
4151 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4152 mono_marshal_emit_xdomain_copy_value (mb, pclass);
4153 mono_mb_emit_byte (mb, CEE_STIND_REF);
4155 mono_marshal_emit_xdomain_copy_value (mb, pclass);
4160 case MONO_MARSHAL_NONE:
4161 mono_mb_emit_ldarg (mb, param_index++);
4166 /* Make the call to the real object */
4168 emit_thread_force_interrupt_checkpoint (mb);
4170 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4172 if (sig->ret->type != MONO_TYPE_VOID)
4173 mono_mb_emit_stloc (mb, loc_return);
4175 /* copy back MONO_MARSHAL_COPY_OUT parameters */
4179 for (i = 0; i < sig->param_count; i++) {
4180 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
4181 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
4182 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4183 mono_mb_emit_ldarg (mb, param_index);
4184 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
4189 /* Serialize the return values */
4191 if (complex_out_count > 0) {
4192 /* Reset parameters in the array that don't need to be serialized back */
4194 for (i = 0; i < sig->param_count; i++) {
4195 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
4196 if (!sig->params [i]->byref) {
4197 mono_mb_emit_ldloc (mb, loc_array);
4198 mono_mb_emit_icon (mb, j);
4199 mono_mb_emit_byte (mb, CEE_LDNULL);
4200 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4205 /* Add the return value to the array */
4207 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4208 mono_mb_emit_ldloc (mb, loc_array);
4209 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
4210 mono_mb_emit_ldloc (mb, loc_return);
4211 if (ret_class->valuetype) {
4212 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4214 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4219 mono_mb_emit_ldarg (mb, 1);
4220 mono_mb_emit_ldloc (mb, loc_array);
4221 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4222 mono_mb_emit_byte (mb, CEE_STIND_REF);
4223 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4224 mono_mb_emit_ldarg (mb, 1);
4225 mono_mb_emit_ldloc (mb, loc_return);
4226 if (ret_class->valuetype) {
4227 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4229 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4230 mono_mb_emit_byte (mb, CEE_STIND_REF);
4232 mono_mb_emit_ldarg (mb, 1);
4233 mono_mb_emit_byte (mb, CEE_LDNULL);
4234 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4235 mono_mb_emit_byte (mb, CEE_STIND_REF);
4238 mono_mb_emit_ldarg (mb, 2);
4239 mono_mb_emit_byte (mb, CEE_LDNULL);
4240 mono_mb_emit_byte (mb, CEE_STIND_REF);
4241 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
4243 /* Main exception catch */
4244 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4245 main_clause->try_len = mb->pos - main_clause->try_offset;
4246 main_clause->data.catch_class = mono_defaults.object_class;
4249 main_clause->handler_offset = mb->pos;
4250 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
4251 mono_mb_emit_stloc (mb, loc_serialized_exc);
4252 mono_mb_emit_ldarg (mb, 2);
4253 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4254 mono_mb_emit_byte (mb, CEE_STIND_REF);
4255 mono_mb_emit_branch (mb, CEE_LEAVE);
4256 main_clause->handler_len = mb->pos - main_clause->handler_offset;
4259 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
4262 mono_mb_emit_ldloc (mb, loc_return);
4264 mono_mb_emit_byte (mb, CEE_RET);
4266 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
4269 header = ((MonoMethodNormal *)res)->header;
4270 header->num_clauses = 1;
4271 header->clauses = main_clause;
4276 /* mono_marshal_get_xappdomain_invoke ()
4277 * Generates a fast remoting wrapper for cross app domain calls.
4280 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
4282 MonoMethodSignature *sig;
4283 MonoMethodBuilder *mb;
4285 int i, j, complex_count, complex_out_count, copy_locals_base;
4287 MonoClass *ret_class = NULL;
4288 MonoMethod *xdomain_method;
4289 int ret_marshal_type = MONO_MARSHAL_NONE;
4290 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
4291 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
4292 int pos, pos_dispatch, pos_noex;
4293 gboolean copy_return = FALSE;
4297 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
4300 /* we cant remote methods without this pointer */
4301 if (!mono_method_signature (method)->hasthis)
4304 if (!mono_marshal_supports_fast_xdomain (method))
4305 return mono_marshal_get_remoting_invoke (method);
4307 mono_remoting_marshal_init ();
4309 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
4312 sig = signature_no_pinvoke (method);
4314 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
4315 mb->method->save_lmf = 1;
4317 /* Count the number of parameters that need to be serialized */
4319 marshal_types = alloca (sizeof (int) * sig->param_count);
4320 complex_count = complex_out_count = 0;
4321 for (i = 0; i < sig->param_count; i++) {
4322 MonoType *ptype = sig->params[i];
4323 int mt = mono_get_xdomain_marshal_type (ptype);
4325 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4326 * the copy will be made by reusing the original object instance
4328 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4329 mt = MONO_MARSHAL_COPY_OUT;
4330 else if (mt == MONO_MARSHAL_SERIALIZE) {
4332 if (ptype->byref) complex_out_count++;
4334 marshal_types [i] = mt;
4337 if (sig->ret->type != MONO_TYPE_VOID) {
4338 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4339 ret_class = mono_class_from_mono_type (sig->ret);
4340 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4345 if (complex_count > 0)
4346 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4347 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4348 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4350 loc_return = mono_mb_add_local (mb, sig->ret);
4351 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4352 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4353 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4354 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4356 /* Save thread domain data */
4358 mono_mb_emit_icall (mb, mono_context_get);
4359 mono_mb_emit_byte (mb, CEE_DUP);
4360 mono_mb_emit_stloc (mb, loc_context);
4362 /* If the thread is not running in the default context, it needs to go
4363 * through the whole remoting sink, since the context is going to change
4365 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4366 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4368 /* Another case in which the fast path can't be used: when the target domain
4369 * has a different image for the same assembly.
4372 /* Get the target domain id */
4374 mono_mb_emit_ldarg (mb, 0);
4375 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4376 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4377 mono_mb_emit_byte (mb, CEE_DUP);
4378 mono_mb_emit_stloc (mb, loc_real_proxy);
4380 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4381 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4382 mono_mb_emit_stloc (mb, loc_domainid);
4384 /* Check if the target domain has the same image for the required assembly */
4386 mono_mb_emit_ldloc (mb, loc_domainid);
4387 mono_mb_emit_ptr (mb, method->klass->image);
4388 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4389 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4391 /* Use the whole remoting sink to dispatch this message */
4393 mono_mb_patch_short_branch (mb, pos);
4395 mono_mb_emit_ldarg (mb, 0);
4396 for (i = 0; i < sig->param_count; i++)
4397 mono_mb_emit_ldarg (mb, i + 1);
4399 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4400 mono_mb_emit_byte (mb, CEE_RET);
4401 mono_mb_patch_short_branch (mb, pos_dispatch);
4403 /* Create the array that will hold the parameters to be serialized */
4405 if (complex_count > 0) {
4406 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 */
4407 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4410 for (i = 0; i < sig->param_count; i++) {
4412 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4413 pclass = mono_class_from_mono_type (sig->params[i]);
4414 mono_mb_emit_byte (mb, CEE_DUP);
4415 mono_mb_emit_icon (mb, j);
4416 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4417 if (sig->params[i]->byref) {
4418 if (pclass->valuetype)
4419 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4421 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4423 if (pclass->valuetype)
4424 mono_mb_emit_op (mb, CEE_BOX, pclass);
4425 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4428 mono_mb_emit_stloc (mb, loc_array);
4430 /* Serialize parameters */
4432 mono_mb_emit_ldloc (mb, loc_array);
4433 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4434 mono_mb_emit_stloc (mb, loc_serialized_data);
4436 mono_mb_emit_byte (mb, CEE_LDNULL);
4437 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4438 mono_mb_emit_stloc (mb, loc_serialized_data);
4443 mono_mb_emit_ldloc (mb, loc_domainid);
4444 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4445 mono_marshal_emit_switch_domain (mb);
4446 mono_mb_emit_stloc (mb, loc_old_domainid);
4448 /* Load the arguments */
4450 mono_mb_emit_ldloc (mb, loc_real_proxy);
4451 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4452 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4454 copy_locals_base = mb->locals;
4455 for (i = 0; i < sig->param_count; i++) {
4456 switch (marshal_types [i]) {
4457 case MONO_MARSHAL_SERIALIZE:
4459 case MONO_MARSHAL_COPY: {
4460 mono_mb_emit_ldarg (mb, i+1);
4461 if (sig->params [i]->byref) {
4462 /* make a local copy of the byref parameter. The real parameter
4463 * will be updated after the xdomain call
4465 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4466 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4467 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4468 mono_mb_emit_stloc (mb, copy_local);
4469 mono_mb_emit_ldloc_addr (mb, copy_local);
4473 case MONO_MARSHAL_COPY_OUT:
4474 case MONO_MARSHAL_NONE:
4475 mono_mb_emit_ldarg (mb, i+1);
4480 /* Make the call to the invoke wrapper in the target domain */
4482 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4483 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4484 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4487 mono_mb_emit_stloc (mb, loc_return);
4491 mono_mb_emit_ldloc (mb, loc_old_domainid);
4492 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4493 mono_marshal_emit_switch_domain (mb);
4494 mono_mb_emit_byte (mb, CEE_POP);
4496 /* Restore thread domain data */
4498 mono_mb_emit_ldloc (mb, loc_context);
4499 mono_mb_emit_icall (mb, mono_context_set);
4501 /* if (loc_serialized_exc != null) ... */
4503 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4504 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4506 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4507 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4508 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4509 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4510 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4511 mono_mb_emit_byte (mb, CEE_THROW);
4512 mono_mb_patch_addr_s (mb, pos_noex, mb->pos - pos_noex - 1);
4514 /* copy back non-serialized output parameters */
4517 for (i = 0; i < sig->param_count; i++) {
4518 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4519 mono_mb_emit_ldarg (mb, i + 1);
4520 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4521 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4522 mono_mb_emit_byte (mb, CEE_STIND_REF);
4525 /* Deserialize out parameters */
4527 if (complex_out_count > 0) {
4528 mono_mb_emit_ldloc (mb, loc_serialized_data);
4529 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4530 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4531 mono_mb_emit_stloc (mb, loc_array);
4533 /* Copy back output parameters and return type */
4536 for (i = 0; i < sig->param_count; i++) {
4537 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4538 if (sig->params[i]->byref) {
4539 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4540 mono_mb_emit_ldarg (mb, i + 1);
4541 mono_mb_emit_ldloc (mb, loc_array);
4542 mono_mb_emit_icon (mb, j);
4543 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4544 if (pclass->valuetype) {
4545 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4546 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4547 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4549 if (pclass != mono_defaults.object_class)
4550 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4551 mono_mb_emit_byte (mb, CEE_STIND_REF);
4557 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4558 mono_mb_emit_ldloc (mb, loc_array);
4559 mono_mb_emit_icon (mb, complex_count);
4560 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4561 if (ret_class->valuetype) {
4562 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4563 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4566 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4567 mono_mb_emit_ldloc (mb, loc_serialized_data);
4568 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4569 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4570 if (ret_class->valuetype) {
4571 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4572 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4573 } else if (ret_class != mono_defaults.object_class) {
4574 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4577 mono_mb_emit_ldloc (mb, loc_serialized_data);
4578 mono_mb_emit_byte (mb, CEE_DUP);
4579 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4580 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4582 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
4583 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4584 mono_mb_emit_byte (mb, CEE_POP);
4588 mono_mb_emit_ldloc (mb, loc_return);
4589 if (ret_marshal_type == MONO_MARSHAL_COPY)
4590 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4593 mono_mb_emit_byte (mb, CEE_RET);
4595 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4602 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4604 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4605 return mono_marshal_get_xappdomain_invoke (method);
4606 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4607 return cominterop_get_invoke (method);
4609 return mono_marshal_get_remoting_invoke (method);
4612 G_GNUC_UNUSED static gpointer
4613 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4615 if (rp->target_domain_id != -1)
4616 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4618 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4622 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4624 MonoMethodSignature *sig;
4625 MonoMethodBuilder *mb;
4626 MonoMethod *res, *native;
4627 int i, pos, pos_rem;
4631 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4634 /* we cant remote methods without this pointer */
4635 g_assert (mono_method_signature (method)->hasthis);
4637 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4640 sig = signature_no_pinvoke (method);
4642 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4644 for (i = 0; i <= sig->param_count; i++)
4645 mono_mb_emit_ldarg (mb, i);
4647 mono_mb_emit_ldarg (mb, 0);
4648 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4650 if (mono_marshal_supports_fast_xdomain (method)) {
4651 mono_mb_emit_ldarg (mb, 0);
4652 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4654 /* wrapper for cross app domain calls */
4655 native = mono_marshal_get_xappdomain_invoke (method);
4656 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4657 mono_mb_emit_byte (mb, CEE_RET);
4659 mono_mb_patch_addr (mb, pos_rem, mb->pos - (pos_rem + 4));
4661 /* wrapper for normal remote calls */
4662 native = mono_marshal_get_remoting_invoke (method);
4663 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4664 mono_mb_emit_byte (mb, CEE_RET);
4667 mono_mb_patch_branch (mb, pos);
4668 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4669 mono_mb_emit_byte (mb, CEE_RET);
4671 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4679 MonoMethodSignature *sig;
4681 } SignatureMethodPair;
4684 signature_method_pair_hash (gconstpointer data)
4686 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4688 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4692 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4694 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4698 free_signature_method_pair (SignatureMethodPair *pair)
4704 * the returned method invokes all methods in a multicast delegate.
4707 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4709 MonoMethodSignature *sig, *static_sig;
4711 MonoMethodBuilder *mb;
4712 MonoMethod *res, *newm;
4714 SignatureMethodPair key;
4715 SignatureMethodPair *new_key;
4716 int local_prev, local_target;
4719 MonoMethod *target_method = NULL;
4720 gboolean callvirt = FALSE;
4723 * If the delegate target is null, and the target method is not static, a virtual
4724 * call is made to that method with the first delegate argument as this. This is
4725 * a non-documented .NET feature.
4727 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4729 target_method = del->method;
4732 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4733 !strcmp (method->name, "Invoke"));
4735 sig = signature_no_pinvoke (method);
4738 /* We need to cache the signature+method pair */
4739 mono_marshal_lock ();
4740 if (!method->klass->image->delegate_abstract_invoke_cache)
4741 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);
4742 cache = method->klass->image->delegate_abstract_invoke_cache;
4744 key.method = target_method;
4745 res = g_hash_table_lookup (cache, &key);
4746 mono_marshal_unlock ();
4750 cache = method->klass->image->delegate_invoke_cache;
4751 if ((res = mono_marshal_find_in_cache (cache, sig)))
4755 static_sig = signature_dup (method->klass->image, sig);
4756 static_sig->hasthis = 0;
4758 name = mono_signature_to_name (sig, "invoke");
4759 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4762 /* allocate local 0 (object) */
4763 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4764 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4766 g_assert (sig->hasthis);
4770 * prev.Invoke( args .. );
4771 * return this.<target>( args .. );
4774 /* this wrapper can be used in unmanaged-managed transitions */
4775 emit_thread_interrupt_checkpoint (mb);
4777 /* get this->prev */
4778 mono_mb_emit_ldarg (mb, 0);
4779 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4780 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4781 mono_mb_emit_stloc (mb, local_prev);
4782 mono_mb_emit_ldloc (mb, local_prev);
4784 /* if prev != null */
4785 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4789 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4790 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4792 mono_mb_emit_ldloc (mb, local_prev);
4793 for (i = 0; i < sig->param_count; i++)
4794 mono_mb_emit_ldarg (mb, i + 1);
4795 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4796 if (sig->ret->type != MONO_TYPE_VOID)
4797 mono_mb_emit_byte (mb, CEE_POP);
4799 /* continued or prev == null */
4800 mono_mb_patch_branch (mb, pos0);
4802 /* get this->target */
4803 mono_mb_emit_ldarg (mb, 0);
4804 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4805 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4806 mono_mb_emit_stloc (mb, local_target);
4808 /* if target != null */
4809 mono_mb_emit_ldloc (mb, local_target);
4810 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4812 /* then call this->method_ptr nonstatic */
4815 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4817 mono_mb_emit_ldloc (mb, local_target);
4818 for (i = 0; i < sig->param_count; ++i)
4819 mono_mb_emit_ldarg (mb, i + 1);
4820 mono_mb_emit_ldarg (mb, 0);
4821 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4822 mono_mb_emit_byte (mb, CEE_LDIND_I );
4823 mono_mb_emit_op (mb, CEE_CALLI, sig);
4825 mono_mb_emit_byte (mb, CEE_RET);
4828 /* else [target == null] call this->method_ptr static */
4829 mono_mb_patch_branch (mb, pos0);
4832 mono_mb_emit_ldarg (mb, 1);
4833 mono_mb_emit_op (mb, CEE_CASTCLASS, target_method->klass);
4834 for (i = 1; i < sig->param_count; ++i)
4835 mono_mb_emit_ldarg (mb, i + 1);
4836 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4838 for (i = 0; i < sig->param_count; ++i)
4839 mono_mb_emit_ldarg (mb, i + 1);
4840 mono_mb_emit_ldarg (mb, 0);
4841 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4842 mono_mb_emit_byte (mb, CEE_LDIND_I );
4843 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4846 mono_mb_emit_byte (mb, CEE_RET);
4849 // From mono_mb_create_and_cache
4850 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4851 mono_marshal_lock ();
4852 res = g_hash_table_lookup (cache, &key);
4855 new_key = g_new0 (SignatureMethodPair, 1);
4857 new_key->method = target_method;
4858 g_hash_table_insert (cache, new_key, res);
4859 g_hash_table_insert (wrapper_hash, res, new_key);
4860 mono_marshal_unlock ();
4862 mono_marshal_unlock ();
4863 mono_free_method (newm);
4866 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4874 * signature_dup_add_this:
4876 * Make a copy of @sig, adding an explicit this argument.
4878 static MonoMethodSignature*
4879 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4881 MonoMethodSignature *res;
4884 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4885 memcpy (res, sig, sizeof (MonoMethodSignature));
4886 res->param_count = sig->param_count + 1;
4887 res->hasthis = FALSE;
4888 for (i = sig->param_count - 1; i >= 0; i --)
4889 res->params [i + 1] = sig->params [i];
4890 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4896 MonoMethodSignature *ctor_sig;
4897 MonoMethodSignature *sig;
4900 /* protected by the marshal lock, contains CtorSigPair pointers */
4901 static GSList *strsig_list = NULL;
4903 static MonoMethodSignature *
4904 lookup_string_ctor_signature (MonoMethodSignature *sig)
4906 MonoMethodSignature *callsig;
4910 mono_marshal_lock ();
4912 for (item = strsig_list; item; item = item->next) {
4914 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4915 * because it is lock-free.
4917 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4922 mono_marshal_unlock ();
4926 static MonoMethodSignature *
4927 add_string_ctor_signature (MonoMethod *method)
4929 MonoMethodSignature *callsig;
4932 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4933 callsig->ret = &mono_defaults.string_class->byval_arg;
4934 cs = g_new (CtorSigPair, 1);
4936 cs->ctor_sig = mono_method_signature (method);
4938 mono_marshal_lock ();
4939 strsig_list = g_slist_prepend (strsig_list, cs);
4940 mono_marshal_unlock ();
4945 * generates IL code for the runtime invoke function
4946 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4948 * we also catch exceptions if exc != null
4951 mono_marshal_get_runtime_invoke (MonoMethod *method)
4953 MonoMethodSignature *sig, *csig, *callsig;
4954 MonoExceptionClause *clause;
4955 MonoMethodHeader *header;
4956 MonoMethodBuilder *mb;
4957 GHashTable *cache = NULL;
4958 MonoClass *target_klass;
4959 MonoMethod *res = NULL;
4960 static MonoString *string_dummy = NULL;
4961 static MonoMethodSignature *dealy_abort_sig = NULL;
4964 gboolean need_direct_wrapper = FALSE;
4968 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4969 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4971 * Array Get/Set/Address methods. The JIT implements them using inline code
4972 * so we need to create an invoke wrapper which calls the method directly.
4974 need_direct_wrapper = TRUE;
4977 if (method->string_ctor) {
4978 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4980 callsig = add_string_ctor_signature (method);
4982 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4984 * Valuetype methods receive a managed pointer as the this argument.
4985 * Create a new signature to reflect this.
4987 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4989 if (method->dynamic)
4990 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4992 callsig = mono_method_signature (method);
4996 /* See bug #80743 */
4997 target_klass = method->klass;
4999 target_klass = mono_defaults.object_class;
5001 * if types in the signature belong to non-mscorlib, we cache only
5002 * in the method image
5004 if (mono_class_from_mono_type (callsig->ret)->image != mono_defaults.corlib) {
5005 target_klass = method->klass;
5007 for (i = 0; i < callsig->param_count; i++) {
5008 if (mono_class_from_mono_type (callsig->params [i])->image != mono_defaults.corlib) {
5009 target_klass = method->klass;
5015 if (need_direct_wrapper) {
5016 cache = target_klass->image->runtime_invoke_direct_cache;
5017 res = mono_marshal_find_in_cache (cache, method);
5019 cache = target_klass->image->runtime_invoke_cache;
5021 /* from mono_marshal_find_in_cache */
5022 mono_marshal_lock ();
5023 res = g_hash_table_lookup (cache, callsig);
5024 mono_marshal_unlock ();
5031 if (!dealy_abort_sig) {
5032 dealy_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
5033 dealy_abort_sig->ret = &mono_defaults.void_class->byval_arg;
5034 dealy_abort_sig->pinvoke = 0;
5037 /* to make it work with our special string constructors */
5038 if (!string_dummy) {
5039 MONO_GC_REGISTER_ROOT (string_dummy);
5040 string_dummy = mono_string_new_wrapper ("dummy");
5043 sig = mono_method_signature (method);
5045 csig = mono_metadata_signature_alloc (target_klass->image, 4);
5047 csig->ret = &mono_defaults.object_class->byval_arg;
5048 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
5049 csig->params [0] = callsig->params [0];
5051 csig->params [0] = &mono_defaults.object_class->byval_arg;
5052 csig->params [1] = &mono_defaults.int_class->byval_arg;
5053 csig->params [2] = &mono_defaults.int_class->byval_arg;
5054 csig->params [3] = &mono_defaults.int_class->byval_arg;
5056 name = mono_signature_to_name (callsig, "runtime_invoke");
5057 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
5060 /* allocate local 0 (object) tmp */
5061 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5062 /* allocate local 1 (object) exc */
5063 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5065 /* cond set *exc to null */
5066 mono_mb_emit_byte (mb, CEE_LDARG_2);
5067 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
5068 mono_mb_emit_byte (mb, 3);
5069 mono_mb_emit_byte (mb, CEE_LDARG_2);
5070 mono_mb_emit_byte (mb, CEE_LDNULL);
5071 mono_mb_emit_byte (mb, CEE_STIND_REF);
5073 emit_thread_force_interrupt_checkpoint (mb);
5076 if (method->string_ctor) {
5077 mono_mb_emit_ptr (mb, string_dummy);
5079 mono_mb_emit_ldarg (mb, 0);
5083 for (i = 0; i < sig->param_count; i++) {
5084 MonoType *t = sig->params [i];
5087 mono_mb_emit_ldarg (mb, 1);
5089 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
5090 mono_mb_emit_byte (mb, CEE_ADD);
5094 mono_mb_emit_byte (mb, CEE_LDIND_I);
5098 type = sig->params [i]->type;
5102 case MONO_TYPE_BOOLEAN:
5106 case MONO_TYPE_CHAR:
5115 mono_mb_emit_byte (mb, CEE_LDIND_I);
5116 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5118 case MONO_TYPE_STRING:
5119 case MONO_TYPE_CLASS:
5120 case MONO_TYPE_ARRAY:
5122 case MONO_TYPE_SZARRAY:
5123 case MONO_TYPE_OBJECT:
5124 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5126 case MONO_TYPE_GENERICINST:
5127 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
5128 mono_mb_emit_byte (mb, CEE_LDIND_I);
5133 case MONO_TYPE_VALUETYPE:
5134 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
5135 type = t->data.klass->enum_basetype->type;
5138 mono_mb_emit_byte (mb, CEE_LDIND_I);
5139 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
5140 /* Need to convert a boxed vtype to an mp to a Nullable struct */
5141 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
5142 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5144 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5148 g_assert_not_reached ();
5152 if (need_direct_wrapper) {
5153 mono_mb_emit_op (mb, CEE_CALL, method);
5155 mono_mb_emit_ldarg (mb, 3);
5156 mono_mb_emit_calli (mb, callsig);
5159 if (sig->ret->byref) {
5161 g_assert_not_reached ();
5165 switch (sig->ret->type) {
5166 case MONO_TYPE_VOID:
5167 if (!method->string_ctor)
5168 mono_mb_emit_byte (mb, CEE_LDNULL);
5170 case MONO_TYPE_BOOLEAN:
5171 case MONO_TYPE_CHAR:
5184 case MONO_TYPE_VALUETYPE:
5185 case MONO_TYPE_TYPEDBYREF:
5186 case MONO_TYPE_GENERICINST:
5187 /* box value types */
5188 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
5190 case MONO_TYPE_STRING:
5191 case MONO_TYPE_CLASS:
5192 case MONO_TYPE_ARRAY:
5193 case MONO_TYPE_SZARRAY:
5194 case MONO_TYPE_OBJECT:
5199 g_assert_not_reached ();
5202 mono_mb_emit_stloc (mb, 0);
5204 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5206 mono_loader_lock ();
5207 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
5208 mono_loader_unlock ();
5209 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5210 clause->try_len = mb->pos;
5213 clause->data.filter_offset = mb->pos;
5215 mono_mb_emit_byte (mb, CEE_POP);
5216 mono_mb_emit_byte (mb, CEE_LDARG_2);
5217 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5218 mono_mb_emit_byte (mb, CEE_PREFIX1);
5219 mono_mb_emit_byte (mb, CEE_CGT_UN);
5220 mono_mb_emit_byte (mb, CEE_PREFIX1);
5221 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5223 clause->handler_offset = mb->pos;
5226 /* store exception */
5227 mono_mb_emit_stloc (mb, 1);
5229 mono_mb_emit_byte (mb, CEE_LDARG_2);
5230 mono_mb_emit_ldloc (mb, 1);
5231 mono_mb_emit_byte (mb, CEE_STIND_REF);
5233 mono_mb_emit_byte (mb, CEE_LDNULL);
5234 mono_mb_emit_stloc (mb, 0);
5236 /* Check for the abort exception */
5237 mono_mb_emit_ldloc (mb, 1);
5238 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5239 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5241 /* Delay the abort exception */
5242 mono_mb_emit_native_call (mb, dealy_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
5244 mono_mb_patch_short_branch (mb, posna);
5245 mono_mb_emit_branch (mb, CEE_LEAVE);
5247 clause->handler_len = mb->pos - clause->handler_offset;
5250 mono_mb_patch_branch (mb, pos);
5251 mono_mb_emit_ldloc (mb, 0);
5252 mono_mb_emit_byte (mb, CEE_RET);
5254 if (need_direct_wrapper) {
5255 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
5257 /* taken from mono_mb_create_and_cache */
5258 mono_marshal_lock ();
5259 res = g_hash_table_lookup (cache, callsig);
5260 mono_marshal_unlock ();
5262 /* Somebody may have created it before us */
5265 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
5267 mono_marshal_lock ();
5268 res = g_hash_table_lookup (cache, callsig);
5271 g_hash_table_insert (cache, callsig, res);
5272 g_hash_table_insert (wrapper_hash, res, callsig);
5274 mono_free_method (newm);
5276 mono_marshal_unlock ();
5279 /* end mono_mb_create_and_cache */
5284 header = ((MonoMethodNormal *)res)->header;
5285 header->num_clauses = 1;
5286 header->clauses = clause;
5292 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5294 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5295 klass->name_space, klass->name);
5297 mono_mb_emit_exception_marshal_directive (mb, msg);
5301 * mono_marshal_get_ldfld_remote_wrapper:
5302 * @klass: The return type
5304 * This method generates a wrapper for calling mono_load_remote_field_new with
5305 * the appropriate return type.
5308 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5310 MonoMethodSignature *sig, *csig;
5311 MonoMethodBuilder *mb;
5316 cache = klass->image->ldfld_remote_wrapper_cache;
5317 if ((res = mono_marshal_find_in_cache (cache, klass)))
5321 * This wrapper is similar to an icall wrapper but all the wrappers
5322 * call the same C function, but with a different signature.
5324 name = g_strdup_printf ("__mono_load_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
5325 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD_REMOTE);
5328 mb->method->save_lmf = 1;
5330 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5331 sig->params [0] = &mono_defaults.object_class->byval_arg;
5332 sig->params [1] = &mono_defaults.int_class->byval_arg;
5333 sig->params [2] = &mono_defaults.int_class->byval_arg;
5334 sig->ret = &klass->this_arg;
5336 mono_mb_emit_ldarg (mb, 0);
5337 mono_mb_emit_ldarg (mb, 1);
5338 mono_mb_emit_ldarg (mb, 2);
5340 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5341 csig->params [0] = &mono_defaults.object_class->byval_arg;
5342 csig->params [1] = &mono_defaults.int_class->byval_arg;
5343 csig->params [2] = &mono_defaults.int_class->byval_arg;
5344 csig->ret = &klass->this_arg;
5347 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5348 emit_thread_interrupt_checkpoint (mb);
5350 mono_mb_emit_byte (mb, CEE_RET);
5352 res = mono_mb_create_and_cache (cache, klass,
5353 mb, sig, sig->param_count + 16);
5360 * mono_marshal_get_ldfld_wrapper:
5361 * @type: the type of the field
5363 * This method generates a function which can be use to load a field with type
5364 * @type from an object. The generated function has the following signature:
5365 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5368 mono_marshal_get_ldfld_wrapper (MonoType *type)
5370 MonoMethodSignature *sig;
5371 MonoMethodBuilder *mb;
5376 int t, pos0, pos1 = 0;
5378 type = mono_type_get_underlying_type (type);
5383 if (type->type == MONO_TYPE_SZARRAY) {
5384 klass = mono_defaults.array_class;
5385 } else if (type->type == MONO_TYPE_VALUETYPE) {
5386 klass = type->data.klass;
5387 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5388 klass = mono_defaults.object_class;
5389 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5390 klass = mono_defaults.int_class;
5391 } else if (t == MONO_TYPE_GENERICINST) {
5392 if (mono_type_generic_inst_is_valuetype (type))
5393 klass = mono_class_from_mono_type (type);
5395 klass = mono_defaults.object_class;
5397 klass = mono_class_from_mono_type (type);
5400 klass = mono_defaults.int_class;
5403 cache = klass->image->ldfld_wrapper_cache;
5404 if ((res = mono_marshal_find_in_cache (cache, klass)))
5407 /* we add the %p pointer value of klass because class names are not unique */
5408 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5409 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5412 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5413 sig->params [0] = &mono_defaults.object_class->byval_arg;
5414 sig->params [1] = &mono_defaults.int_class->byval_arg;
5415 sig->params [2] = &mono_defaults.int_class->byval_arg;
5416 sig->params [3] = &mono_defaults.int_class->byval_arg;
5417 sig->ret = &klass->byval_arg;
5419 mono_mb_emit_ldarg (mb, 0);
5420 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5422 mono_mb_emit_ldarg (mb, 0);
5423 mono_mb_emit_ldarg (mb, 1);
5424 mono_mb_emit_ldarg (mb, 2);
5426 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5429 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5430 csig->params [0] = &mono_defaults.object_class->byval_arg;
5431 csig->params [1] = &mono_defaults.int_class->byval_arg;
5432 csig->params [2] = &mono_defaults.int_class->byval_arg;
5433 csig->ret = &klass->this_arg;
5436 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5437 emit_thread_interrupt_checkpoint (mb);
5440 if (klass->valuetype) {
5441 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5442 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5444 mono_mb_emit_byte (mb, CEE_RET);
5448 mono_mb_patch_branch (mb, pos0);
5450 mono_mb_emit_ldarg (mb, 0);
5451 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5452 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5453 mono_mb_emit_ldarg (mb, 3);
5454 mono_mb_emit_byte (mb, CEE_ADD);
5456 if (klass->valuetype)
5457 mono_mb_patch_branch (mb, pos1);
5462 case MONO_TYPE_BOOLEAN:
5463 case MONO_TYPE_CHAR:
5472 case MONO_TYPE_ARRAY:
5473 case MONO_TYPE_SZARRAY:
5474 case MONO_TYPE_OBJECT:
5475 case MONO_TYPE_CLASS:
5476 case MONO_TYPE_STRING:
5480 case MONO_TYPE_FNPTR:
5481 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5483 case MONO_TYPE_VALUETYPE:
5484 g_assert (!klass->enumtype);
5485 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5487 case MONO_TYPE_GENERICINST:
5488 if (mono_type_generic_inst_is_valuetype (type)) {
5489 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5491 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5495 g_warning ("type %x not implemented", type->type);
5496 g_assert_not_reached ();
5499 mono_mb_emit_byte (mb, CEE_RET);
5501 res = mono_mb_create_and_cache (cache, klass,
5502 mb, sig, sig->param_count + 16);
5509 * mono_marshal_get_ldflda_wrapper:
5510 * @type: the type of the field
5512 * This method generates a function which can be used to load a field address
5513 * from an object. The generated function has the following signature:
5514 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5517 mono_marshal_get_ldflda_wrapper (MonoType *type)
5519 MonoMethodSignature *sig;
5520 MonoMethodBuilder *mb;
5527 type = mono_type_get_underlying_type (type);
5531 if (type->type == MONO_TYPE_SZARRAY) {
5532 klass = mono_defaults.array_class;
5533 } else if (type->type == MONO_TYPE_VALUETYPE) {
5534 klass = type->data.klass;
5535 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5536 t == MONO_TYPE_CLASS) {
5537 klass = mono_defaults.object_class;
5538 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5539 klass = mono_defaults.int_class;
5540 } else if (t == MONO_TYPE_GENERICINST) {
5541 if (mono_type_generic_inst_is_valuetype (type))
5542 klass = mono_class_from_mono_type (type);
5544 klass = mono_defaults.object_class;
5546 klass = mono_class_from_mono_type (type);
5549 klass = mono_defaults.int_class;
5552 cache = klass->image->ldflda_wrapper_cache;
5553 if ((res = mono_marshal_find_in_cache (cache, klass)))
5556 /* we add the %p pointer value of klass because class names are not unique */
5557 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5558 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5561 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5562 sig->params [0] = &mono_defaults.object_class->byval_arg;
5563 sig->params [1] = &mono_defaults.int_class->byval_arg;
5564 sig->params [2] = &mono_defaults.int_class->byval_arg;
5565 sig->params [3] = &mono_defaults.int_class->byval_arg;
5566 sig->ret = &mono_defaults.int_class->byval_arg;
5568 mono_mb_emit_ldarg (mb, 0);
5569 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5571 /* FIXME: Only throw this if the object is in another appdomain */
5572 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5574 mono_mb_patch_branch (mb, pos0);
5576 mono_mb_emit_ldarg (mb, 0);
5577 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5578 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5579 mono_mb_emit_ldarg (mb, 3);
5580 mono_mb_emit_byte (mb, CEE_ADD);
5582 mono_mb_emit_byte (mb, CEE_RET);
5584 res = mono_mb_create_and_cache (cache, klass,
5585 mb, sig, sig->param_count + 16);
5592 * mono_marshal_get_stfld_remote_wrapper:
5593 * klass: The type of the field
5595 * This function generates a wrapper for calling mono_store_remote_field_new
5596 * with the appropriate signature.
5599 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5601 MonoMethodSignature *sig, *csig;
5602 MonoMethodBuilder *mb;
5607 cache = klass->image->stfld_remote_wrapper_cache;
5608 if ((res = mono_marshal_find_in_cache (cache, klass)))
5611 name = g_strdup_printf ("__mono_store_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
5612 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD_REMOTE);
5615 mb->method->save_lmf = 1;
5617 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5618 sig->params [0] = &mono_defaults.object_class->byval_arg;
5619 sig->params [1] = &mono_defaults.int_class->byval_arg;
5620 sig->params [2] = &mono_defaults.int_class->byval_arg;
5621 sig->params [3] = &klass->byval_arg;
5622 sig->ret = &mono_defaults.void_class->byval_arg;
5624 mono_mb_emit_ldarg (mb, 0);
5625 mono_mb_emit_ldarg (mb, 1);
5626 mono_mb_emit_ldarg (mb, 2);
5627 mono_mb_emit_ldarg (mb, 3);
5629 if (klass->valuetype)
5630 mono_mb_emit_op (mb, CEE_BOX, klass);
5632 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5633 csig->params [0] = &mono_defaults.object_class->byval_arg;
5634 csig->params [1] = &mono_defaults.int_class->byval_arg;
5635 csig->params [2] = &mono_defaults.int_class->byval_arg;
5636 csig->params [3] = &klass->byval_arg;
5637 csig->ret = &mono_defaults.void_class->byval_arg;
5640 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5641 emit_thread_interrupt_checkpoint (mb);
5643 mono_mb_emit_byte (mb, CEE_RET);
5645 res = mono_mb_create_and_cache (cache, klass,
5646 mb, sig, sig->param_count + 16);
5653 * mono_marshal_get_stfld_wrapper:
5654 * @type: the type of the field
5656 * This method generates a function which can be use to store a field with type
5657 * @type. The generated function has the following signature:
5658 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5661 mono_marshal_get_stfld_wrapper (MonoType *type)
5663 MonoMethodSignature *sig;
5664 MonoMethodBuilder *mb;
5671 type = mono_type_get_underlying_type (type);
5675 if (type->type == MONO_TYPE_SZARRAY) {
5676 klass = mono_defaults.array_class;
5677 } else if (type->type == MONO_TYPE_VALUETYPE) {
5678 klass = type->data.klass;
5679 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5680 klass = mono_defaults.object_class;
5681 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5682 klass = mono_defaults.int_class;
5683 } else if (t == MONO_TYPE_GENERICINST) {
5684 if (mono_type_generic_inst_is_valuetype (type))
5685 klass = mono_class_from_mono_type (type);
5687 klass = mono_defaults.object_class;
5689 klass = mono_class_from_mono_type (type);
5692 klass = mono_defaults.int_class;
5695 cache = klass->image->stfld_wrapper_cache;
5696 if ((res = mono_marshal_find_in_cache (cache, klass)))
5699 /* we add the %p pointer value of klass because class names are not unique */
5700 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5701 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5704 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5705 sig->params [0] = &mono_defaults.object_class->byval_arg;
5706 sig->params [1] = &mono_defaults.int_class->byval_arg;
5707 sig->params [2] = &mono_defaults.int_class->byval_arg;
5708 sig->params [3] = &mono_defaults.int_class->byval_arg;
5709 sig->params [4] = &klass->byval_arg;
5710 sig->ret = &mono_defaults.void_class->byval_arg;
5712 mono_mb_emit_ldarg (mb, 0);
5713 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5715 mono_mb_emit_ldarg (mb, 0);
5716 mono_mb_emit_ldarg (mb, 1);
5717 mono_mb_emit_ldarg (mb, 2);
5718 mono_mb_emit_ldarg (mb, 4);
5720 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5722 mono_mb_emit_byte (mb, CEE_RET);
5724 mono_mb_patch_branch (mb, pos);
5726 mono_mb_emit_ldarg (mb, 0);
5727 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5728 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5729 mono_mb_emit_ldarg (mb, 3);
5730 mono_mb_emit_byte (mb, CEE_ADD);
5731 mono_mb_emit_ldarg (mb, 4);
5736 case MONO_TYPE_BOOLEAN:
5737 case MONO_TYPE_CHAR:
5746 case MONO_TYPE_ARRAY:
5747 case MONO_TYPE_SZARRAY:
5748 case MONO_TYPE_OBJECT:
5749 case MONO_TYPE_CLASS:
5750 case MONO_TYPE_STRING:
5754 case MONO_TYPE_FNPTR:
5755 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5757 case MONO_TYPE_VALUETYPE:
5758 g_assert (!klass->enumtype);
5759 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5761 case MONO_TYPE_GENERICINST:
5762 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5765 g_warning ("type %x not implemented", type->type);
5766 g_assert_not_reached ();
5769 mono_mb_emit_byte (mb, CEE_RET);
5771 res = mono_mb_create_and_cache (cache, klass,
5772 mb, sig, sig->param_count + 16);
5779 * generates IL code for the icall wrapper (the generated method
5780 * calls the unmanaged code in func)
5783 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
5785 MonoMethodSignature *csig;
5786 MonoMethodBuilder *mb;
5790 g_assert (sig->pinvoke);
5792 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5794 mb->method->save_lmf = 1;
5796 /* we copy the signature, so that we can modify it */
5799 mono_mb_emit_byte (mb, CEE_LDARG_0);
5801 for (i = 0; i < sig->param_count; i++)
5802 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5804 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5805 emit_thread_interrupt_checkpoint (mb);
5806 mono_mb_emit_byte (mb, CEE_RET);
5808 csig = signature_dup (mono_defaults.corlib, sig);
5810 if (csig->call_convention == MONO_CALL_VARARG)
5811 csig->call_convention = 0;
5813 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5820 MonoMethodBuilder *mb;
5821 MonoMethodSignature *sig;
5822 MonoMethodPInvoke *piinfo;
5823 int *orig_conv_args; /* Locals containing the original values of byref args */
5825 MonoClass *retobj_class;
5826 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5827 MonoImage *image; /* The image to use for looking up custom marshallers */
5828 } EmitMarshalContext;
5832 * This is invoked to convert arguments from the current types to
5833 * the underlying types expected by the platform routine. If required,
5834 * the methods create a temporary variable with the proper type, and return
5835 * the location for it (either the passed argument, or the newly allocated
5838 MARSHAL_ACTION_CONV_IN,
5841 * This operation is called to push the actual value that was optionally
5842 * converted on the first stage
5844 MARSHAL_ACTION_PUSH,
5847 * Convert byref arguments back or free resources allocated during the
5850 MARSHAL_ACTION_CONV_OUT,
5853 * The result from the unmanaged call is at the top of the stack when
5854 * this action is invoked. The result should be stored in the
5855 * third local variable slot.
5857 MARSHAL_ACTION_CONV_RESULT,
5859 MARSHAL_ACTION_MANAGED_CONV_IN,
5860 MARSHAL_ACTION_MANAGED_CONV_OUT,
5861 MARSHAL_ACTION_MANAGED_CONV_RESULT
5865 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5866 MonoMarshalSpec *spec,
5867 int conv_arg, MonoType **conv_arg_type,
5868 MarshalAction action)
5872 static MonoClass *ICustomMarshaler = NULL;
5873 static MonoMethod *cleanup_native, *cleanup_managed;
5874 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5875 MonoMethod *get_instance;
5876 MonoMethodBuilder *mb = m->mb;
5877 char *exception_msg = NULL;
5881 if (!ICustomMarshaler) {
5882 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5883 g_assert (ICustomMarshaler);
5885 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5886 g_assert (cleanup_native);
5887 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5888 g_assert (cleanup_managed);
5889 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5890 g_assert (marshal_managed_to_native);
5891 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5892 g_assert (marshal_native_to_managed);
5895 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5896 g_assert (mtype != NULL);
5897 mklass = mono_class_from_mono_type (mtype);
5898 g_assert (mklass != NULL);
5900 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5901 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5903 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5905 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5906 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5907 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5908 (get_sig->params [0]->type != MONO_TYPE_STRING))
5909 get_instance = NULL;
5913 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);
5915 /* Throw exception and emit compensation code if neccesary */
5916 if (exception_msg) {
5918 case MARSHAL_ACTION_CONV_IN:
5919 case MARSHAL_ACTION_CONV_RESULT:
5920 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5921 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5922 mono_mb_emit_byte (mb, CEE_POP);
5924 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5925 g_free (exception_msg);
5928 case MARSHAL_ACTION_PUSH:
5929 mono_mb_emit_byte (mb, CEE_LDNULL);
5937 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5938 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5941 case MARSHAL_ACTION_CONV_IN:
5943 case MONO_TYPE_CLASS:
5944 case MONO_TYPE_OBJECT:
5945 case MONO_TYPE_STRING:
5946 case MONO_TYPE_ARRAY:
5947 case MONO_TYPE_SZARRAY:
5948 case MONO_TYPE_VALUETYPE:
5952 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5953 g_assert_not_reached ();
5957 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5959 mono_mb_emit_byte (mb, CEE_LDNULL);
5960 mono_mb_emit_stloc (mb, conv_arg);
5962 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5965 /* Minic MS.NET behavior */
5966 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5969 /* Check for null */
5970 mono_mb_emit_ldarg (mb, argnum);
5972 mono_mb_emit_byte (mb, CEE_LDIND_I);
5973 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5975 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5977 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5979 mono_mb_emit_ldarg (mb, argnum);
5981 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5983 if (t->type == MONO_TYPE_VALUETYPE) {
5985 * Since we can't determine the type of the argument, we
5986 * will assume the unmanaged function takes a pointer.
5988 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5990 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5993 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5994 mono_mb_emit_stloc (mb, conv_arg);
5996 mono_mb_patch_branch (mb, pos2);
5999 case MARSHAL_ACTION_CONV_OUT:
6000 /* Check for null */
6001 mono_mb_emit_ldloc (mb, conv_arg);
6002 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6005 mono_mb_emit_ldarg (mb, argnum);
6007 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6009 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6011 mono_mb_emit_ldloc (mb, conv_arg);
6012 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6013 mono_mb_emit_byte (mb, CEE_STIND_REF);
6014 } else if (t->attrs &PARAM_ATTRIBUTE_OUT) {
6015 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6017 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6019 mono_mb_emit_ldloc (mb, conv_arg);
6020 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6022 /* We have nowhere to store the result */
6023 mono_mb_emit_byte (mb, CEE_POP);
6026 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6028 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6030 mono_mb_emit_ldloc (mb, conv_arg);
6032 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6034 mono_mb_patch_branch (mb, pos2);
6037 case MARSHAL_ACTION_PUSH:
6039 mono_mb_emit_ldloc_addr (mb, conv_arg);
6041 mono_mb_emit_ldloc (mb, conv_arg);
6044 case MARSHAL_ACTION_CONV_RESULT:
6045 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6047 mono_mb_emit_stloc (mb, 3);
6049 mono_mb_emit_ldloc (mb, 3);
6050 mono_mb_emit_stloc (mb, loc1);
6052 /* Check for null */
6053 mono_mb_emit_ldloc (mb, 3);
6054 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6056 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6058 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6059 mono_mb_emit_byte (mb, CEE_DUP);
6061 mono_mb_emit_ldloc (mb, 3);
6062 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6063 mono_mb_emit_stloc (mb, 3);
6065 mono_mb_emit_ldloc (mb, loc1);
6066 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6068 mono_mb_patch_branch (mb, pos2);
6071 case MARSHAL_ACTION_MANAGED_CONV_IN:
6072 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6074 mono_mb_emit_byte (mb, CEE_LDNULL);
6075 mono_mb_emit_stloc (mb, conv_arg);
6077 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6080 /* Check for null */
6081 mono_mb_emit_ldarg (mb, argnum);
6083 mono_mb_emit_byte (mb, CEE_LDIND_I);
6084 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6086 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6087 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6089 mono_mb_emit_ldarg (mb, argnum);
6091 mono_mb_emit_byte (mb, CEE_LDIND_I);
6093 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6094 mono_mb_emit_stloc (mb, conv_arg);
6096 mono_mb_patch_branch (mb, pos2);
6099 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6100 g_assert (!t->byref);
6102 loc1 = mono_mb_add_local (mb, &mono_defaults.object_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));
6114 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6115 mono_mb_emit_byte (mb, CEE_DUP);
6117 mono_mb_emit_ldloc (mb, 3);
6118 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6119 mono_mb_emit_stloc (mb, 3);
6121 mono_mb_emit_ldloc (mb, loc1);
6122 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6124 mono_mb_patch_branch (mb, pos2);
6127 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6129 /* Check for null */
6130 mono_mb_emit_ldloc (mb, conv_arg);
6131 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6134 mono_mb_emit_ldarg (mb, argnum);
6136 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6138 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6140 mono_mb_emit_ldloc (mb, conv_arg);
6141 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6142 mono_mb_emit_byte (mb, CEE_STIND_I);
6145 /* Call CleanUpManagedData */
6146 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6148 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6150 mono_mb_emit_ldloc (mb, conv_arg);
6151 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6153 mono_mb_patch_branch (mb, pos2);
6157 g_assert_not_reached ();
6164 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6165 MonoMarshalSpec *spec,
6166 int conv_arg, MonoType **conv_arg_type,
6167 MarshalAction action)
6169 MonoMethodBuilder *mb = m->mb;
6172 case MARSHAL_ACTION_CONV_IN: {
6173 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6175 g_assert (t->type == MONO_TYPE_OBJECT);
6176 g_assert (!t->byref);
6178 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6179 mono_mb_emit_ldarg (mb, argnum);
6180 mono_mb_emit_icon (mb, encoding);
6181 mono_mb_emit_icon (mb, t->attrs);
6182 mono_mb_emit_icall (mb, mono_marshal_asany);
6183 mono_mb_emit_stloc (mb, conv_arg);
6187 case MARSHAL_ACTION_PUSH:
6188 mono_mb_emit_ldloc (mb, conv_arg);
6191 case MARSHAL_ACTION_CONV_OUT: {
6192 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6194 mono_mb_emit_ldarg (mb, argnum);
6195 mono_mb_emit_ldloc (mb, conv_arg);
6196 mono_mb_emit_icon (mb, encoding);
6197 mono_mb_emit_icon (mb, t->attrs);
6198 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6203 g_assert_not_reached ();
6210 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6211 MonoMarshalSpec *spec,
6212 int conv_arg, MonoType **conv_arg_type,
6213 MarshalAction action)
6215 MonoMethodBuilder *mb = m->mb;
6219 klass = t->data.klass;
6222 case MARSHAL_ACTION_CONV_IN:
6223 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6224 klass->blittable || klass->enumtype)
6227 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6229 /* store the address of the source into local variable 0 */
6231 mono_mb_emit_ldarg (mb, argnum);
6233 mono_mb_emit_ldarg_addr (mb, argnum);
6235 mono_mb_emit_stloc (mb, 0);
6237 /* allocate space for the native struct and
6238 * store the address into local variable 1 (dest) */
6239 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6240 mono_mb_emit_byte (mb, CEE_PREFIX1);
6241 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6242 mono_mb_emit_stloc (mb, conv_arg);
6245 mono_mb_emit_ldloc (mb, 0);
6246 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6249 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6251 mono_mb_emit_ldloc (mb, conv_arg);
6252 mono_mb_emit_stloc (mb, 1);
6254 /* emit valuetype conversion code */
6255 emit_struct_conv (mb, klass, FALSE);
6259 mono_mb_patch_branch (mb, pos);
6262 case MARSHAL_ACTION_PUSH:
6263 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6265 g_assert (!t->byref);
6267 /* Have to change the signature since the vtype is passed byref */
6268 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6270 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6271 klass->blittable || klass->enumtype)
6272 mono_mb_emit_ldarg_addr (mb, argnum);
6274 mono_mb_emit_ldloc (mb, conv_arg);
6278 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6279 klass->blittable || klass->enumtype) {
6280 mono_mb_emit_ldarg (mb, argnum);
6283 mono_mb_emit_ldloc (mb, conv_arg);
6285 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6286 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6290 case MARSHAL_ACTION_CONV_OUT:
6291 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6292 klass->blittable || klass->enumtype)
6296 /* dst = argument */
6297 mono_mb_emit_ldarg (mb, argnum);
6298 mono_mb_emit_stloc (mb, 1);
6300 mono_mb_emit_ldloc (mb, 1);
6301 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6303 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6304 /* src = tmp_locals [i] */
6305 mono_mb_emit_ldloc (mb, conv_arg);
6306 mono_mb_emit_stloc (mb, 0);
6308 /* emit valuetype conversion code */
6309 emit_struct_conv (mb, klass, TRUE);
6313 emit_struct_free (mb, klass, conv_arg);
6316 mono_mb_patch_branch (mb, pos);
6319 case MARSHAL_ACTION_CONV_RESULT:
6320 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6322 mono_mb_emit_stloc (mb, 3);
6325 /* load pointer to returned value type */
6326 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6327 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6328 /* store the address of the source into local variable 0 */
6329 mono_mb_emit_stloc (mb, 0);
6331 mono_mb_emit_ldloc_addr (mb, 3);
6332 mono_mb_emit_stloc (mb, 1);
6334 /* emit valuetype conversion code */
6335 emit_struct_conv (mb, klass, TRUE);
6338 case MARSHAL_ACTION_MANAGED_CONV_IN:
6339 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6340 klass->blittable || klass->enumtype) {
6345 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6347 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6351 mono_mb_emit_ldarg (mb, argnum);
6353 mono_mb_emit_ldarg_addr (mb, argnum);
6354 mono_mb_emit_stloc (mb, 0);
6357 mono_mb_emit_ldloc (mb, 0);
6358 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6361 mono_mb_emit_ldloc_addr (mb, conv_arg);
6362 mono_mb_emit_stloc (mb, 1);
6364 /* emit valuetype conversion code */
6365 emit_struct_conv (mb, klass, TRUE);
6368 mono_mb_patch_branch (mb, pos);
6371 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6372 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6373 klass->blittable || klass->enumtype) {
6377 /* Check for null */
6378 mono_mb_emit_ldarg (mb, argnum);
6379 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6382 mono_mb_emit_ldloc_addr (mb, conv_arg);
6383 mono_mb_emit_stloc (mb, 0);
6386 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_stloc (mb, 1);
6389 /* emit valuetype conversion code */
6390 emit_struct_conv (mb, klass, FALSE);
6392 mono_mb_patch_branch (mb, pos2);
6395 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6396 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6397 klass->blittable || klass->enumtype) {
6398 mono_mb_emit_stloc (mb, 3);
6403 /* load pointer to returned value type */
6404 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6405 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6407 /* store the address of the source into local variable 0 */
6408 mono_mb_emit_stloc (mb, 0);
6409 /* allocate space for the native struct and
6410 * store the address into dst_ptr */
6411 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6412 m->retobj_class = klass;
6413 g_assert (m->retobj_var);
6414 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6415 mono_mb_emit_byte (mb, CEE_CONV_I);
6416 mono_mb_emit_icall (mb, mono_marshal_alloc);
6417 mono_mb_emit_stloc (mb, 1);
6418 mono_mb_emit_ldloc (mb, 1);
6419 mono_mb_emit_stloc (mb, m->retobj_var);
6421 /* emit valuetype conversion code */
6422 emit_struct_conv (mb, klass, FALSE);
6426 g_assert_not_reached ();
6433 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6434 MonoMarshalSpec *spec,
6435 int conv_arg, MonoType **conv_arg_type,
6436 MarshalAction action)
6438 MonoMethodBuilder *mb = m->mb;
6439 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6440 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6444 case MARSHAL_ACTION_CONV_IN:
6445 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6446 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6449 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6452 mono_mb_emit_ldarg (mb, argnum);
6453 mono_mb_emit_byte (mb, CEE_LDIND_I);
6455 mono_mb_emit_ldarg (mb, argnum);
6459 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6460 MonoException *exc = mono_get_exception_not_implemented (msg);
6463 mono_raise_exception (exc);
6466 mono_mb_emit_icall (mb, conv_to_icall (conv));
6468 mono_mb_emit_stloc (mb, conv_arg);
6471 case MARSHAL_ACTION_CONV_OUT:
6472 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6473 mono_mb_emit_ldarg (mb, argnum);
6474 mono_mb_emit_ldloc (mb, conv_arg);
6475 if (conv == MONO_MARSHAL_CONV_STR_BSTR) {
6476 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_BSTR_STR));
6477 // BSTRs always need freed
6478 mono_mb_emit_ldloc (mb, conv_arg);
6479 mono_mb_emit_icall (mb, mono_free_bstr);
6482 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
6483 mono_mb_emit_byte (mb, CEE_STIND_REF);
6485 if (mono_marshal_need_free (t, m->piinfo, spec)) {
6486 mono_mb_emit_ldloc (mb, conv_arg);
6487 if (conv == MONO_MARSHAL_CONV_STR_BSTR)
6488 mono_mb_emit_icall (mb, mono_free_bstr);
6490 mono_mb_emit_icall (mb, mono_marshal_free);
6495 case MARSHAL_ACTION_PUSH:
6497 mono_mb_emit_ldloc_addr (mb, conv_arg);
6499 mono_mb_emit_ldloc (mb, conv_arg);
6502 case MARSHAL_ACTION_CONV_RESULT:
6503 mono_mb_emit_stloc (mb, 0);
6505 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6507 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6508 mono_mb_emit_exception_marshal_directive (mb, msg);
6512 mono_mb_emit_ldloc (mb, 0);
6513 mono_mb_emit_icall (mb, conv_to_icall (conv));
6514 mono_mb_emit_stloc (mb, 3);
6516 /* free the string */
6517 mono_mb_emit_ldloc (mb, 0);
6518 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6519 mono_mb_emit_icall (mb, mono_free_bstr);
6521 mono_mb_emit_icall (mb, g_free);
6524 case MARSHAL_ACTION_MANAGED_CONV_IN:
6530 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6531 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6533 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6535 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6536 mono_mb_emit_exception_marshal_directive (mb, msg);
6540 mono_mb_emit_ldarg (mb, argnum);
6541 mono_mb_emit_icall (mb, conv_to_icall (conv));
6542 mono_mb_emit_stloc (mb, conv_arg);
6545 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6546 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6547 /* We need to make a copy so the caller is able to free it */
6548 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6550 mono_mb_emit_icall (mb, conv_to_icall (conv));
6551 mono_mb_emit_stloc (mb, 3);
6555 g_assert_not_reached ();
6562 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6563 MonoMarshalSpec *spec, int conv_arg,
6564 MonoType **conv_arg_type, MarshalAction action)
6566 MonoMethodBuilder *mb = m->mb;
6569 case MARSHAL_ACTION_CONV_IN: {
6570 MonoType *intptr_type;
6571 int dar_release_slot, pos;
6573 intptr_type = &mono_defaults.int_class->byval_arg;
6574 conv_arg = mono_mb_add_local (mb, intptr_type);
6575 *conv_arg_type = intptr_type;
6577 if (!sh_dangerous_add_ref)
6578 init_safe_handle ();
6580 mono_mb_emit_ldarg (mb, argnum);
6581 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6582 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6584 mono_mb_patch_branch (mb, pos);
6587 * My tests in show that ref SafeHandles are not really
6588 * passed as ref objects. Instead a NULL is passed as the
6591 mono_mb_emit_icon (mb, 0);
6592 mono_mb_emit_stloc (mb, conv_arg);
6596 /* Create local to hold the ref parameter to DangerousAddRef */
6597 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6599 /* set release = false; */
6600 mono_mb_emit_icon (mb, 0);
6601 mono_mb_emit_stloc (mb, dar_release_slot);
6603 /* safehandle.DangerousAddRef (ref release) */
6604 mono_mb_emit_ldarg (mb, argnum);
6605 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6606 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6608 /* Pull the handle field from SafeHandle */
6609 mono_mb_emit_ldarg (mb, argnum);
6610 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6611 mono_mb_emit_byte (mb, CEE_LDIND_I);
6612 mono_mb_emit_stloc (mb, conv_arg);
6617 case MARSHAL_ACTION_PUSH:
6619 mono_mb_emit_ldloc_addr (mb, conv_arg);
6621 mono_mb_emit_ldloc (mb, conv_arg);
6624 case MARSHAL_ACTION_CONV_OUT: {
6625 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6626 int dar_release_slot = conv_arg + 1;
6629 if (!sh_dangerous_release)
6630 init_safe_handle ();
6636 * My tests indicate that ref SafeHandles parameters are not actually
6637 * passed by ref, but instead a new Handle is created regardless of
6638 * whether a change happens in the unmanaged side.
6640 * Also, the Handle is created before calling into unmanaged code,
6641 * but we do not support that mechanism (getting to the original
6642 * handle) and it makes no difference where we create this
6644 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6646 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6649 /* refval = new SafeHandleDerived ()*/
6650 mono_mb_emit_ldarg (mb, argnum);
6651 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6652 mono_mb_emit_byte (mb, CEE_STIND_REF);
6654 /* refval.handle = returned_handle */
6655 mono_mb_emit_ldarg (mb, argnum);
6656 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6657 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6658 mono_mb_emit_ldloc (mb, conv_arg);
6659 mono_mb_emit_byte (mb, CEE_STIND_I);
6661 mono_mb_emit_ldloc (mb, dar_release_slot);
6662 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6663 mono_mb_emit_ldarg (mb, argnum);
6664 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6665 mono_mb_patch_addr (mb, label_next, mb->pos - (label_next + 4));
6670 case MARSHAL_ACTION_CONV_RESULT: {
6671 MonoMethod *ctor = NULL;
6672 int intptr_handle_slot;
6674 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6675 mono_mb_emit_byte (mb, CEE_POP);
6676 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6680 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6682 mono_mb_emit_byte (mb, CEE_POP);
6683 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6686 /* Store the IntPtr results into a local */
6687 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6688 mono_mb_emit_stloc (mb, intptr_handle_slot);
6690 /* Create return value */
6691 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6692 mono_mb_emit_stloc (mb, 3);
6694 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6695 mono_mb_emit_ldloc (mb, 3);
6696 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6697 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6698 mono_mb_emit_byte (mb, CEE_STIND_I);
6702 case MARSHAL_ACTION_MANAGED_CONV_IN:
6703 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6706 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6707 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6710 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6711 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6714 printf ("Unhandled case for MarshalAction: %d\n", action);
6721 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6722 MonoMarshalSpec *spec, int conv_arg,
6723 MonoType **conv_arg_type, MarshalAction action)
6725 MonoMethodBuilder *mb = m->mb;
6728 case MARSHAL_ACTION_CONV_IN: {
6729 MonoType *intptr_type;
6731 intptr_type = &mono_defaults.int_class->byval_arg;
6732 conv_arg = mono_mb_add_local (mb, intptr_type);
6733 *conv_arg_type = intptr_type;
6736 mono_mb_emit_exception_marshal_directive (mb,
6737 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6740 mono_mb_emit_ldarg_addr (mb, argnum);
6741 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6742 mono_mb_emit_byte (mb, CEE_ADD);
6743 mono_mb_emit_byte (mb, CEE_LDIND_I);
6744 mono_mb_emit_stloc (mb, conv_arg);
6748 case MARSHAL_ACTION_PUSH:
6749 mono_mb_emit_ldloc (mb, conv_arg);
6752 case MARSHAL_ACTION_CONV_OUT: {
6753 /* no resource release required */
6757 case MARSHAL_ACTION_CONV_RESULT: {
6758 mono_mb_emit_exception_marshal_directive (mb,
6759 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6763 case MARSHAL_ACTION_MANAGED_CONV_IN:
6764 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6767 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6768 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6771 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6772 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6775 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6782 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6783 MonoMarshalSpec *spec,
6784 int conv_arg, MonoType **conv_arg_type,
6785 MarshalAction action)
6787 MonoMethodBuilder *mb = m->mb;
6788 MonoClass *klass = t->data.klass;
6791 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6792 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6796 case MARSHAL_ACTION_CONV_IN:
6797 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6798 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6800 m->orig_conv_args [argnum] = 0;
6802 if (klass->delegate) {
6803 g_assert (!t->byref);
6804 mono_mb_emit_ldarg (mb, argnum);
6805 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6806 mono_mb_emit_stloc (mb, conv_arg);
6807 } else if (klass == mono_defaults.stringbuilder_class) {
6808 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6809 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6811 g_assert (!t->byref);
6812 mono_mb_emit_ldarg (mb, argnum);
6815 mono_mb_emit_icall (mb, conv_to_icall (conv));
6817 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6818 MonoException *exc = mono_get_exception_not_implemented (msg);
6821 mono_raise_exception (exc);
6824 mono_mb_emit_stloc (mb, conv_arg);
6825 } else if (klass->blittable) {
6826 mono_mb_emit_byte (mb, CEE_LDNULL);
6827 mono_mb_emit_stloc (mb, conv_arg);
6829 mono_mb_emit_ldarg (mb, argnum);
6830 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6832 mono_mb_emit_ldarg (mb, argnum);
6833 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6834 mono_mb_emit_stloc (mb, conv_arg);
6836 mono_mb_patch_branch (mb, pos);
6839 mono_mb_emit_byte (mb, CEE_LDNULL);
6840 mono_mb_emit_stloc (mb, conv_arg);
6843 /* we dont need any conversions for out parameters */
6844 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6847 mono_mb_emit_ldarg (mb, argnum);
6848 mono_mb_emit_byte (mb, CEE_LDIND_I);
6851 mono_mb_emit_ldarg (mb, argnum);
6852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6853 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6856 /* store the address of the source into local variable 0 */
6857 mono_mb_emit_stloc (mb, 0);
6858 mono_mb_emit_ldloc (mb, 0);
6859 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6861 /* allocate space for the native struct and store the address */
6862 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6863 mono_mb_emit_byte (mb, CEE_PREFIX1);
6864 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6865 mono_mb_emit_stloc (mb, conv_arg);
6868 /* Need to store the original buffer so we can free it later */
6869 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6870 mono_mb_emit_ldloc (mb, conv_arg);
6871 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6874 /* set the src_ptr */
6875 mono_mb_emit_ldloc (mb, 0);
6876 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6877 mono_mb_emit_stloc (mb, 0);
6880 mono_mb_emit_ldloc (mb, conv_arg);
6881 mono_mb_emit_stloc (mb, 1);
6883 /* emit valuetype conversion code */
6884 emit_struct_conv (mb, klass, FALSE);
6886 mono_mb_patch_branch (mb, pos);
6890 case MARSHAL_ACTION_CONV_OUT:
6891 if (klass == mono_defaults.stringbuilder_class) {
6893 MonoMarshalNative encoding;
6894 MonoMarshalConv conv;
6896 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6897 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6899 g_assert (!t->byref);
6900 g_assert (encoding != -1);
6902 mono_mb_emit_ldarg (mb, argnum);
6903 mono_mb_emit_ldloc (mb, conv_arg);
6905 mono_mb_emit_icall (mb, conv_to_icall (conv));
6908 mono_mb_emit_ldloc (mb, conv_arg);
6909 mono_mb_emit_icall (mb, mono_marshal_free);
6914 if (klass->delegate)
6917 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6918 /* allocate a new object */
6919 mono_mb_emit_ldarg (mb, argnum);
6920 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6921 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6922 mono_mb_emit_byte (mb, CEE_STIND_REF);
6925 /* dst = *argument */
6926 mono_mb_emit_ldarg (mb, argnum);
6929 mono_mb_emit_byte (mb, CEE_LDIND_I);
6931 mono_mb_emit_stloc (mb, 1);
6933 mono_mb_emit_ldloc (mb, 1);
6934 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6936 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6937 mono_mb_emit_ldloc (mb, 1);
6938 mono_mb_emit_icon (mb, sizeof (MonoObject));
6939 mono_mb_emit_byte (mb, CEE_ADD);
6940 mono_mb_emit_stloc (mb, 1);
6942 /* src = tmp_locals [i] */
6943 mono_mb_emit_ldloc (mb, conv_arg);
6944 mono_mb_emit_stloc (mb, 0);
6946 /* emit valuetype conversion code */
6947 emit_struct_conv (mb, t->data.klass, TRUE);
6949 /* Free the structure returned by the native code */
6950 emit_struct_free (mb, klass, conv_arg);
6952 if (m->orig_conv_args [argnum]) {
6954 * If the native function changed the pointer, then free
6955 * the original structure plus the new pointer.
6957 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6958 mono_mb_emit_ldloc (mb, conv_arg);
6959 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6961 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6962 g_assert (m->orig_conv_args [argnum]);
6964 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6967 mono_mb_emit_ldloc (mb, conv_arg);
6968 mono_mb_emit_icall (mb, g_free);
6970 mono_mb_patch_branch (mb, pos2);
6974 /* Free the original structure passed to native code */
6975 emit_struct_free (mb, klass, conv_arg);
6977 mono_mb_patch_branch (mb, pos);
6980 case MARSHAL_ACTION_PUSH:
6982 mono_mb_emit_ldloc_addr (mb, conv_arg);
6984 mono_mb_emit_ldloc (mb, conv_arg);
6987 case MARSHAL_ACTION_CONV_RESULT:
6988 if (klass->delegate) {
6989 g_assert (!t->byref);
6990 mono_mb_emit_stloc (mb, 0);
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, 0);
6994 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6995 mono_mb_emit_stloc (mb, 3);
6998 mono_mb_emit_stloc (mb, 0);
7000 /* Make a copy since emit_conv modifies local 0 */
7001 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7002 mono_mb_emit_ldloc (mb, 0);
7003 mono_mb_emit_stloc (mb, loc);
7005 mono_mb_emit_byte (mb, CEE_LDNULL);
7006 mono_mb_emit_stloc (mb, 3);
7008 mono_mb_emit_ldloc (mb, 0);
7009 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7011 /* allocate result object */
7013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7014 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7015 mono_mb_emit_stloc (mb, 3);
7019 mono_mb_emit_ldloc (mb, 3);
7020 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7021 mono_mb_emit_stloc (mb, 1);
7023 /* emit conversion code */
7024 emit_struct_conv (mb, klass, TRUE);
7026 emit_struct_free (mb, klass, loc);
7028 /* Free the pointer allocated by unmanaged code */
7029 mono_mb_emit_ldloc (mb, loc);
7030 mono_mb_emit_icall (mb, g_free);
7031 mono_mb_patch_branch (mb, pos);
7035 case MARSHAL_ACTION_MANAGED_CONV_IN:
7036 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7038 if (klass->delegate) {
7039 g_assert (!t->byref);
7040 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7041 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7042 mono_mb_emit_ldarg (mb, argnum);
7043 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7044 mono_mb_emit_stloc (mb, conv_arg);
7048 /* The class can not have an automatic layout */
7049 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7050 mono_mb_emit_auto_layout_exception (mb, klass);
7054 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
7055 mono_mb_emit_byte (mb, CEE_LDNULL);
7056 mono_mb_emit_stloc (mb, conv_arg);
7061 mono_mb_emit_ldarg (mb, argnum);
7065 /* Check for NULL and raise an exception */
7066 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7068 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
7070 mono_mb_patch_branch (mb, pos2);
7071 mono_mb_emit_ldarg (mb, argnum);
7072 mono_mb_emit_byte (mb, CEE_LDIND_I);
7075 mono_mb_emit_stloc (mb, 0);
7077 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7078 mono_mb_emit_stloc (mb, conv_arg);
7080 mono_mb_emit_ldloc (mb, 0);
7081 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7083 /* Create and set dst */
7084 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7085 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7086 mono_mb_emit_stloc (mb, conv_arg);
7087 mono_mb_emit_ldloc (mb, conv_arg);
7088 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7089 mono_mb_emit_stloc (mb, 1);
7091 /* emit valuetype conversion code */
7092 emit_struct_conv (mb, klass, TRUE);
7094 mono_mb_patch_branch (mb, pos);
7097 case MARSHAL_ACTION_MANAGED_CONV_OUT:
7099 /* Check for null */
7100 mono_mb_emit_ldloc (mb, conv_arg);
7101 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7102 mono_mb_emit_ldarg (mb, argnum);
7103 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7104 mono_mb_emit_byte (mb, CEE_STIND_REF);
7105 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7107 mono_mb_patch_branch (mb, pos);
7110 mono_mb_emit_ldloc (mb, conv_arg);
7111 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7112 mono_mb_emit_stloc (mb, 0);
7114 /* Allocate and set dest */
7115 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7116 mono_mb_emit_byte (mb, CEE_CONV_I);
7117 mono_mb_emit_icall (mb, mono_marshal_alloc);
7118 mono_mb_emit_stloc (mb, 1);
7120 /* Update argument pointer */
7121 mono_mb_emit_ldarg (mb, argnum);
7122 mono_mb_emit_ldloc (mb, 1);
7123 mono_mb_emit_byte (mb, CEE_STIND_I);
7125 /* emit valuetype conversion code */
7126 emit_struct_conv (mb, klass, FALSE);
7128 mono_mb_patch_branch (mb, pos2);
7130 /* byval [Out] marshalling */
7132 /* FIXME: Handle null */
7135 mono_mb_emit_ldloc (mb, conv_arg);
7136 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7137 mono_mb_emit_stloc (mb, 0);
7140 mono_mb_emit_ldarg (mb, argnum);
7141 mono_mb_emit_stloc (mb, 1);
7143 /* emit valuetype conversion code */
7144 emit_struct_conv (mb, klass, FALSE);
7148 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7149 if (klass->delegate) {
7150 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7151 mono_mb_emit_stloc (mb, 3);
7155 /* The class can not have an automatic layout */
7156 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7157 mono_mb_emit_auto_layout_exception (mb, klass);
7161 mono_mb_emit_stloc (mb, 0);
7162 /* Check for null */
7163 mono_mb_emit_ldloc (mb, 0);
7164 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7165 mono_mb_emit_byte (mb, CEE_LDNULL);
7166 mono_mb_emit_stloc (mb, 3);
7167 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7169 mono_mb_patch_branch (mb, pos);
7172 mono_mb_emit_ldloc (mb, 0);
7173 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7174 mono_mb_emit_stloc (mb, 0);
7176 /* Allocate and set dest */
7177 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7178 mono_mb_emit_byte (mb, CEE_CONV_I);
7179 mono_mb_emit_icall (mb, mono_marshal_alloc);
7180 mono_mb_emit_byte (mb, CEE_DUP);
7181 mono_mb_emit_stloc (mb, 1);
7182 mono_mb_emit_stloc (mb, 3);
7184 emit_struct_conv (mb, klass, FALSE);
7186 mono_mb_patch_branch (mb, pos2);
7190 g_assert_not_reached ();
7197 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7198 MonoMarshalSpec *spec,
7199 int conv_arg, MonoType **conv_arg_type,
7200 MarshalAction action)
7202 MonoMethodBuilder *mb = m->mb;
7203 MonoClass *klass = t->data.klass;
7204 static MonoMethod* get_object_for_iunknown = NULL;
7205 static MonoMethod* get_iunknown_for_object_internal = NULL;
7206 static MonoMethod* get_com_interface_for_object_internal = NULL;
7207 static MonoMethod* get_idispatch_for_object_internal = NULL;
7208 static MonoMethod* marshal_release = NULL;
7209 static MonoMethod* AddRef = NULL;
7210 if (!get_object_for_iunknown)
7211 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7212 if (!get_iunknown_for_object_internal)
7213 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7214 if (!get_idispatch_for_object_internal)
7215 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7216 if (!get_com_interface_for_object_internal)
7217 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7218 if (!marshal_release)
7219 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7221 /* COM types are initialized lazily */
7222 mono_init_com_types ();
7225 case MARSHAL_ACTION_CONV_IN: {
7226 guint32 pos_null = 0;
7228 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7229 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7231 mono_mb_emit_ptr (mb, NULL);
7232 mono_mb_emit_stloc (mb, conv_arg);
7234 /* we dont need any conversions for out parameters */
7235 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7238 mono_mb_emit_ldarg (mb, argnum);
7240 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7241 /* if null just break, conv arg was already inited to 0 */
7242 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7244 mono_mb_emit_ldarg (mb, argnum);
7246 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7248 if (klass && klass != mono_defaults.object_class) {
7249 mono_mb_emit_ptr (mb, t);
7250 mono_mb_emit_icall (mb, type_from_handle);
7251 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7253 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7254 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7255 else if (spec->native == MONO_NATIVE_IDISPATCH)
7256 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7257 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7258 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7260 g_assert_not_reached ();
7261 mono_mb_emit_stloc (mb, conv_arg);
7262 mono_mb_patch_short_branch (mb, pos_null);
7266 case MARSHAL_ACTION_CONV_OUT: {
7267 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7269 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7270 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7272 mono_mb_emit_ldarg (mb, argnum);
7273 mono_mb_emit_byte (mb, CEE_LDNULL);
7274 mono_mb_emit_byte (mb, CEE_STIND_REF);
7276 mono_mb_emit_ldloc (mb, conv_arg);
7277 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7279 mono_mb_emit_ldloc (mb, conv_arg);
7280 mono_mb_emit_icon (mb, TRUE);
7281 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7282 mono_mb_emit_stloc (mb, ccw_obj);
7283 mono_mb_emit_ldloc (mb, ccw_obj);
7284 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7286 mono_mb_emit_ldarg (mb, argnum);
7287 mono_mb_emit_ldloc (mb, conv_arg);
7288 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7290 if (klass && klass != mono_defaults.object_class)
7291 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7292 mono_mb_emit_byte (mb, CEE_STIND_REF);
7294 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7296 /* is already managed object */
7297 mono_mb_patch_short_branch (mb, pos_ccw);
7298 mono_mb_emit_ldarg (mb, argnum);
7299 mono_mb_emit_ldloc (mb, ccw_obj);
7301 if (klass && klass != mono_defaults.object_class)
7302 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7303 mono_mb_emit_byte (mb, CEE_STIND_REF);
7305 mono_mb_patch_short_branch (mb, pos_end);
7307 /* need to call Release to follow COM rules of ownership */
7308 mono_mb_emit_ldloc (mb, conv_arg);
7309 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7310 mono_mb_emit_byte (mb, CEE_POP);
7313 mono_mb_patch_short_branch (mb, pos_null);
7317 case MARSHAL_ACTION_PUSH:
7319 mono_mb_emit_ldloc_addr (mb, conv_arg);
7321 mono_mb_emit_ldloc (mb, conv_arg);
7324 case MARSHAL_ACTION_CONV_RESULT: {
7325 int ccw_obj, ret_ptr;
7326 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7327 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7328 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7330 /* store return value */
7331 mono_mb_emit_stloc (mb, ret_ptr);
7333 mono_mb_emit_ldloc (mb, ret_ptr);
7334 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7336 mono_mb_emit_ldloc (mb, ret_ptr);
7337 mono_mb_emit_icon (mb, TRUE);
7338 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7339 mono_mb_emit_stloc (mb, ccw_obj);
7340 mono_mb_emit_ldloc (mb, ccw_obj);
7341 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7343 mono_mb_emit_ldloc (mb, ret_ptr);
7344 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7346 if (klass && klass != mono_defaults.object_class)
7347 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7348 mono_mb_emit_stloc (mb, 3);
7350 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7352 /* is already managed object */
7353 mono_mb_patch_short_branch (mb, pos_ccw);
7354 mono_mb_emit_ldloc (mb, ccw_obj);
7356 if (klass && klass != mono_defaults.object_class)
7357 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7358 mono_mb_emit_stloc (mb, 3);
7360 mono_mb_patch_short_branch (mb, pos_end);
7362 /* need to call Release to follow COM rules of ownership */
7363 mono_mb_emit_ldloc (mb, ret_ptr);
7364 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7365 mono_mb_emit_byte (mb, CEE_POP);
7368 mono_mb_patch_short_branch (mb, pos_null);
7372 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7374 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7375 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7377 klass = mono_class_from_mono_type (t);
7378 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7379 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7381 mono_mb_emit_byte (mb, CEE_LDNULL);
7382 mono_mb_emit_stloc (mb, conv_arg);
7383 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7386 mono_mb_emit_ldarg (mb, argnum);
7388 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7389 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7391 mono_mb_emit_ldarg (mb, argnum);
7393 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7394 mono_mb_emit_icon (mb, TRUE);
7395 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7396 mono_mb_emit_stloc (mb, ccw_obj);
7397 mono_mb_emit_ldloc (mb, ccw_obj);
7398 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7401 mono_mb_emit_ldarg (mb, argnum);
7403 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7404 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7406 if (klass && klass != mono_defaults.object_class)
7407 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7408 mono_mb_emit_stloc (mb, conv_arg);
7409 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7411 /* is already managed object */
7412 mono_mb_patch_short_branch (mb, pos_ccw);
7413 mono_mb_emit_ldloc (mb, ccw_obj);
7414 if (klass && klass != mono_defaults.object_class)
7415 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7416 mono_mb_emit_stloc (mb, conv_arg);
7418 mono_mb_patch_short_branch (mb, pos_end);
7420 mono_mb_patch_short_branch (mb, pos_null);
7424 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7425 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7426 guint32 pos_null = 0;
7429 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7431 mono_mb_emit_ldloc (mb, conv_arg);
7432 /* if null just break, conv arg was already inited to 0 */
7433 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7435 /* to store later */
7436 mono_mb_emit_ldarg (mb, argnum);
7437 mono_mb_emit_ldloc (mb, conv_arg);
7438 if (klass && klass != mono_defaults.object_class) {
7439 mono_mb_emit_ptr (mb, t);
7440 mono_mb_emit_icall (mb, type_from_handle);
7441 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7443 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7444 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7445 else if (spec->native == MONO_NATIVE_IDISPATCH)
7446 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7447 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7448 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7450 g_assert_not_reached ();
7451 mono_mb_emit_byte (mb, CEE_STIND_I);
7453 mono_mb_emit_ldarg (mb, argnum);
7454 mono_mb_emit_byte (mb, CEE_LDIND_I);
7455 mono_mb_emit_managed_call (mb, AddRef, NULL);
7456 mono_mb_emit_byte (mb, CEE_POP);
7458 mono_mb_patch_short_branch (mb, pos_null);
7463 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7464 guint32 pos_null = 0;
7466 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7469 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7471 /* store return value */
7472 mono_mb_emit_stloc (mb, ccw_obj);
7474 mono_mb_emit_ldloc (mb, ccw_obj);
7476 /* if null just break, conv arg was already inited to 0 */
7477 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7479 /* to store later */
7480 mono_mb_emit_ldloc (mb, ccw_obj);
7481 if (klass && klass != mono_defaults.object_class) {
7482 mono_mb_emit_ptr (mb, t);
7483 mono_mb_emit_icall (mb, type_from_handle);
7484 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7486 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7487 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7488 else if (spec->native == MONO_NATIVE_IDISPATCH)
7489 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7490 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7491 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7493 g_assert_not_reached ();
7494 mono_mb_emit_stloc (mb, 3);
7495 mono_mb_emit_ldloc (mb, 3);
7497 mono_mb_emit_managed_call (mb, AddRef, NULL);
7498 mono_mb_emit_byte (mb, CEE_POP);
7500 mono_mb_patch_short_branch (mb, pos_null);
7505 g_assert_not_reached ();
7512 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7513 MonoMarshalSpec *spec,
7514 int conv_arg, MonoType **conv_arg_type,
7515 MarshalAction action)
7517 MonoMethodBuilder *mb = m->mb;
7518 static MonoMethod *get_object_for_native_variant = NULL;
7519 static MonoMethod *get_native_variant_for_object = NULL;
7521 mono_init_com_types ();
7523 if (!get_object_for_native_variant)
7524 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7525 g_assert (get_object_for_native_variant);
7527 if (!get_native_variant_for_object)
7528 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7529 g_assert (get_native_variant_for_object);
7532 case MARSHAL_ACTION_CONV_IN: {
7533 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7536 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7538 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7540 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7543 mono_mb_emit_ldarg (mb, argnum);
7545 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7546 mono_mb_emit_ldloc_addr (mb, conv_arg);
7547 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7551 case MARSHAL_ACTION_CONV_OUT: {
7552 static MonoMethod *variant_clear = NULL;
7555 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7556 g_assert (variant_clear);
7560 mono_mb_emit_ldarg (mb, argnum);
7561 mono_mb_emit_ldloc_addr (mb, conv_arg);
7562 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7563 mono_mb_emit_byte (mb, CEE_STIND_REF);
7566 mono_mb_emit_ldloc_addr (mb, conv_arg);
7567 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7571 case MARSHAL_ACTION_PUSH:
7573 mono_mb_emit_ldloc_addr (mb, conv_arg);
7575 mono_mb_emit_ldloc (mb, conv_arg);
7578 case MARSHAL_ACTION_CONV_RESULT: {
7579 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7580 mono_mb_emit_exception_marshal_directive (mb, msg);
7584 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7585 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7588 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7590 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7592 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7596 mono_mb_emit_ldarg (mb, argnum);
7598 mono_mb_emit_ldarg_addr (mb, argnum);
7599 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7600 mono_mb_emit_stloc (mb, conv_arg);
7604 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7606 mono_mb_emit_ldloc (mb, conv_arg);
7607 mono_mb_emit_ldarg (mb, argnum);
7608 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7613 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7614 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7615 mono_mb_emit_exception_marshal_directive (mb, msg);
7620 g_assert_not_reached ();
7627 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7628 MonoMarshalSpec *spec,
7629 int conv_arg, MonoType **conv_arg_type,
7630 MarshalAction action)
7632 MonoMethodBuilder *mb = m->mb;
7633 MonoClass *klass = mono_class_from_mono_type (t);
7634 gboolean need_convert, need_free;
7635 MonoMarshalNative encoding;
7637 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7640 case MARSHAL_ACTION_CONV_IN:
7641 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7642 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7644 if (klass->element_class->blittable) {
7645 mono_mb_emit_ldarg (mb, argnum);
7647 mono_mb_emit_byte (mb, CEE_LDIND_I);
7648 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7649 mono_mb_emit_stloc (mb, conv_arg);
7652 guint32 label1, label2, label3;
7653 int index_var, src_var, dest_ptr, esize;
7654 MonoMarshalConv conv;
7655 gboolean is_string = FALSE;
7657 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7659 eklass = klass->element_class;
7661 if (eklass == mono_defaults.string_class) {
7663 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7665 else if (eklass == mono_defaults.stringbuilder_class) {
7667 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7672 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7673 mono_mb_emit_ldarg (mb, argnum);
7675 mono_mb_emit_byte (mb, CEE_LDIND_I);
7676 mono_mb_emit_stloc (mb, src_var);
7679 mono_mb_emit_ldloc (mb, src_var);
7680 mono_mb_emit_stloc (mb, conv_arg);
7681 mono_mb_emit_ldloc (mb, src_var);
7682 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7686 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7687 MonoException *exc = mono_get_exception_not_implemented (msg);
7690 mono_raise_exception (exc);
7695 esize = sizeof (gpointer);
7697 esize = mono_class_native_size (eklass, NULL);
7699 /* allocate space for the native struct and store the address */
7700 mono_mb_emit_icon (mb, esize);
7701 mono_mb_emit_ldloc (mb, src_var);
7702 mono_mb_emit_byte (mb, CEE_LDLEN);
7704 if (eklass == mono_defaults.string_class) {
7705 /* Make the array bigger for the terminating null */
7706 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7707 mono_mb_emit_byte (mb, CEE_ADD);
7709 mono_mb_emit_byte (mb, CEE_MUL);
7710 mono_mb_emit_byte (mb, CEE_PREFIX1);
7711 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7712 mono_mb_emit_stloc (mb, conv_arg);
7714 mono_mb_emit_ldloc (mb, conv_arg);
7715 mono_mb_emit_stloc (mb, dest_ptr);
7717 /* Emit marshalling loop */
7718 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7719 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7720 mono_mb_emit_stloc (mb, index_var);
7722 mono_mb_emit_ldloc (mb, index_var);
7723 mono_mb_emit_ldloc (mb, src_var);
7724 mono_mb_emit_byte (mb, CEE_LDLEN);
7725 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7727 /* Emit marshalling code */
7730 mono_mb_emit_ldloc (mb, dest_ptr);
7731 mono_mb_emit_ldloc (mb, src_var);
7732 mono_mb_emit_ldloc (mb, index_var);
7733 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7734 mono_mb_emit_icall (mb, conv_to_icall (conv));
7735 mono_mb_emit_byte (mb, CEE_STIND_I);
7737 /* set the src_ptr */
7738 mono_mb_emit_ldloc (mb, src_var);
7739 mono_mb_emit_ldloc (mb, index_var);
7740 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7741 mono_mb_emit_stloc (mb, 0);
7744 mono_mb_emit_ldloc (mb, dest_ptr);
7745 mono_mb_emit_stloc (mb, 1);
7747 /* emit valuetype conversion code */
7748 emit_struct_conv (mb, eklass, FALSE);
7751 mono_mb_emit_add_to_local (mb, index_var, 1);
7752 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7754 mono_mb_emit_byte (mb, CEE_BR);
7755 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
7757 mono_mb_patch_branch (mb, label3);
7759 if (eklass == mono_defaults.string_class) {
7760 /* Null terminate */
7761 mono_mb_emit_ldloc (mb, dest_ptr);
7762 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7763 mono_mb_emit_byte (mb, CEE_STIND_REF);
7766 mono_mb_patch_branch (mb, label1);
7771 case MARSHAL_ACTION_CONV_OUT:
7772 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7773 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);
7774 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7777 if (need_convert || need_free) {
7778 /* FIXME: Optimize blittable case */
7780 guint32 label1, label2, label3;
7781 int index_var, src_ptr, loc, esize;
7783 eklass = klass->element_class;
7784 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7785 esize = sizeof (gpointer);
7787 esize = mono_class_native_size (eklass, NULL);
7788 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7789 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7792 mono_mb_emit_ldarg (mb, argnum);
7794 mono_mb_emit_byte (mb, CEE_LDIND_I);
7795 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7797 mono_mb_emit_ldloc (mb, conv_arg);
7798 mono_mb_emit_stloc (mb, src_ptr);
7800 /* Emit marshalling loop */
7801 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7802 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7803 mono_mb_emit_stloc (mb, index_var);
7805 mono_mb_emit_ldloc (mb, index_var);
7806 mono_mb_emit_ldarg (mb, argnum);
7808 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7809 mono_mb_emit_byte (mb, CEE_LDLEN);
7810 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7812 /* Emit marshalling code */
7814 if (eklass == mono_defaults.stringbuilder_class) {
7815 gboolean need_free2;
7816 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7818 g_assert (conv != -1);
7821 mono_mb_emit_ldarg (mb, argnum);
7823 mono_mb_emit_byte (mb, CEE_LDIND_I);
7824 mono_mb_emit_ldloc (mb, index_var);
7825 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7828 mono_mb_emit_ldloc (mb, src_ptr);
7829 mono_mb_emit_byte (mb, CEE_LDIND_I);
7831 mono_mb_emit_icall (mb, conv_to_icall (conv));
7835 mono_mb_emit_ldloc (mb, src_ptr);
7836 mono_mb_emit_byte (mb, CEE_LDIND_I);
7838 mono_mb_emit_icall (mb, mono_marshal_free);
7841 else if (eklass == mono_defaults.string_class) {
7844 mono_mb_emit_ldloc (mb, src_ptr);
7845 mono_mb_emit_byte (mb, CEE_LDIND_I);
7847 mono_mb_emit_icall (mb, mono_marshal_free);
7852 /* set the src_ptr */
7853 mono_mb_emit_ldloc (mb, src_ptr);
7854 mono_mb_emit_stloc (mb, 0);
7857 mono_mb_emit_ldarg (mb, argnum);
7859 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7860 mono_mb_emit_ldloc (mb, index_var);
7861 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7862 mono_mb_emit_stloc (mb, 1);
7864 /* emit valuetype conversion code */
7865 emit_struct_conv (mb, eklass, TRUE);
7869 mono_mb_emit_ldloc (mb, src_ptr);
7870 mono_mb_emit_stloc (mb, loc);
7871 mono_mb_emit_ldloc (mb, loc);
7873 emit_struct_free (mb, eklass, loc);
7877 mono_mb_emit_add_to_local (mb, index_var, 1);
7878 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7880 mono_mb_emit_byte (mb, CEE_BR);
7881 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
7883 mono_mb_patch_branch (mb, label1);
7884 mono_mb_patch_branch (mb, label3);
7888 case MARSHAL_ACTION_PUSH:
7890 mono_mb_emit_ldloc_addr (mb, conv_arg);
7892 mono_mb_emit_ldloc (mb, conv_arg);
7895 case MARSHAL_ACTION_CONV_RESULT:
7896 /* fixme: we need conversions here */
7897 mono_mb_emit_stloc (mb, 3);
7900 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7902 guint32 label1, label2, label3;
7903 int index_var, src_ptr, loc, esize, param_num, num_elem;
7904 MonoMarshalConv conv;
7905 gboolean is_string = FALSE;
7907 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7908 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7911 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7912 mono_mb_emit_exception_marshal_directive (mb, msg);
7916 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7917 mono_mb_emit_exception_marshal_directive (mb, msg);
7920 if (spec->native != MONO_NATIVE_LPARRAY) {
7921 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7922 mono_mb_emit_exception_marshal_directive (mb, msg);
7926 /* FIXME: t is from the method which is wrapped, not the delegate type */
7927 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7929 param_num = spec->data.array_data.param_num;
7930 num_elem = spec->data.array_data.num_elem;
7931 if (spec->data.array_data.elem_mult == 0)
7932 /* param_num is not specified */
7935 if (param_num == -1) {
7936 if (num_elem <= 0) {
7937 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7938 mono_mb_emit_exception_marshal_directive (mb, msg);
7943 /* FIXME: Optimize blittable case */
7945 eklass = klass->element_class;
7946 if (eklass == mono_defaults.string_class) {
7948 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7950 else if (eklass == mono_defaults.stringbuilder_class) {
7952 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7957 mono_marshal_load_type_info (eklass);
7960 esize = sizeof (gpointer);
7962 esize = mono_class_native_size (eklass, NULL);
7963 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7964 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7966 mono_mb_emit_byte (mb, CEE_LDNULL);
7967 mono_mb_emit_stloc (mb, conv_arg);
7969 /* Check param index */
7970 if (param_num != -1) {
7971 if (param_num >= m->sig->param_count) {
7972 char *msg = g_strdup ("Array size control parameter index is out of range.");
7973 mono_mb_emit_exception_marshal_directive (mb, msg);
7976 switch (m->sig->params [param_num]->type) {
7989 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7990 mono_mb_emit_exception_marshal_directive (mb, msg);
7997 mono_mb_emit_ldarg (mb, argnum);
7998 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8000 mono_mb_emit_ldarg (mb, argnum);
8001 mono_mb_emit_stloc (mb, src_ptr);
8003 /* Create managed array */
8005 * The LPArray marshalling spec says that sometimes param_num starts
8006 * from 1, sometimes it starts from 0. But MS seems to allways start
8010 if (param_num == -1)
8011 mono_mb_emit_icon (mb, num_elem);
8013 /* FIXME: Add the two together */
8014 mono_mb_emit_ldarg (mb, param_num);
8016 mono_mb_emit_icon (mb, num_elem);
8017 mono_mb_emit_byte (mb, CEE_ADD);
8021 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
8022 mono_mb_emit_stloc (mb, conv_arg);
8024 if (eklass->blittable) {
8025 mono_mb_emit_ldloc (mb, conv_arg);
8026 mono_mb_emit_byte (mb, CEE_CONV_I);
8027 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8028 mono_mb_emit_byte (mb, CEE_ADD);
8029 mono_mb_emit_ldarg (mb, argnum);
8030 mono_mb_emit_ldloc (mb, conv_arg);
8031 mono_mb_emit_byte (mb, CEE_LDLEN);
8032 mono_mb_emit_icon (mb, esize);
8033 mono_mb_emit_byte (mb, CEE_MUL);
8034 mono_mb_emit_byte (mb, CEE_PREFIX1);
8035 mono_mb_emit_byte (mb, CEE_CPBLK);
8039 /* Emit marshalling loop */
8040 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8041 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8042 mono_mb_emit_stloc (mb, index_var);
8044 mono_mb_emit_ldloc (mb, index_var);
8045 mono_mb_emit_ldloc (mb, conv_arg);
8046 mono_mb_emit_byte (mb, CEE_LDLEN);
8047 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8049 /* Emit marshalling code */
8051 g_assert (conv != -1);
8053 mono_mb_emit_ldloc (mb, conv_arg);
8054 mono_mb_emit_ldloc (mb, index_var);
8056 mono_mb_emit_ldloc (mb, src_ptr);
8057 mono_mb_emit_byte (mb, CEE_LDIND_I);
8059 mono_mb_emit_icall (mb, conv_to_icall (conv));
8060 mono_mb_emit_byte (mb, CEE_STELEM_REF);
8063 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8064 mono_mb_emit_exception_marshal_directive (mb, msg);
8068 mono_mb_emit_add_to_local (mb, index_var, 1);
8069 mono_mb_emit_add_to_local (mb, src_ptr, esize);
8071 mono_mb_emit_byte (mb, CEE_BR);
8072 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
8074 mono_mb_patch_branch (mb, label1);
8075 mono_mb_patch_branch (mb, label3);
8079 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
8081 guint32 label1, label2, label3;
8082 int index_var, dest_ptr, loc, esize, param_num, num_elem;
8083 MonoMarshalConv conv;
8084 gboolean is_string = FALSE;
8087 /* Already handled in CONV_IN */
8090 /* These are already checked in CONV_IN */
8091 g_assert (!t->byref);
8092 g_assert (spec->native == MONO_NATIVE_LPARRAY);
8093 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
8095 param_num = spec->data.array_data.param_num;
8096 num_elem = spec->data.array_data.num_elem;
8098 if (spec->data.array_data.elem_mult == 0)
8099 /* param_num is not specified */
8102 if (param_num == -1) {
8103 if (num_elem <= 0) {
8104 g_assert_not_reached ();
8108 /* FIXME: Optimize blittable case */
8110 eklass = klass->element_class;
8111 if (eklass == mono_defaults.string_class) {
8113 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8115 else if (eklass == mono_defaults.stringbuilder_class) {
8117 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
8122 mono_marshal_load_type_info (eklass);
8125 esize = sizeof (gpointer);
8127 esize = mono_class_native_size (eklass, NULL);
8129 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8130 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8133 mono_mb_emit_ldloc (mb, conv_arg);
8134 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8136 mono_mb_emit_ldarg (mb, argnum);
8137 mono_mb_emit_stloc (mb, dest_ptr);
8139 if (eklass->blittable) {
8141 mono_mb_emit_ldarg (mb, argnum);
8143 mono_mb_emit_ldloc (mb, conv_arg);
8144 mono_mb_emit_byte (mb, CEE_CONV_I);
8145 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8146 mono_mb_emit_byte (mb, CEE_ADD);
8148 mono_mb_emit_ldloc (mb, conv_arg);
8149 mono_mb_emit_byte (mb, CEE_LDLEN);
8150 mono_mb_emit_icon (mb, esize);
8151 mono_mb_emit_byte (mb, CEE_MUL);
8152 mono_mb_emit_byte (mb, CEE_PREFIX1);
8153 mono_mb_emit_byte (mb, CEE_CPBLK);
8157 /* Emit marshalling loop */
8158 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8159 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8160 mono_mb_emit_stloc (mb, index_var);
8162 mono_mb_emit_ldloc (mb, index_var);
8163 mono_mb_emit_ldloc (mb, conv_arg);
8164 mono_mb_emit_byte (mb, CEE_LDLEN);
8165 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8167 /* Emit marshalling code */
8169 g_assert (conv != -1);
8172 mono_mb_emit_ldloc (mb, dest_ptr);
8175 mono_mb_emit_ldloc (mb, conv_arg);
8176 mono_mb_emit_ldloc (mb, index_var);
8178 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8180 mono_mb_emit_icall (mb, conv_to_icall (conv));
8181 mono_mb_emit_byte (mb, CEE_STIND_I);
8184 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8185 mono_mb_emit_exception_marshal_directive (mb, msg);
8189 mono_mb_emit_add_to_local (mb, index_var, 1);
8190 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8192 mono_mb_emit_byte (mb, CEE_BR);
8193 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
8195 mono_mb_patch_branch (mb, label1);
8196 mono_mb_patch_branch (mb, label3);
8200 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8202 guint32 label1, label2, label3;
8203 int index_var, src, dest, esize;
8204 MonoMarshalConv conv = -1;
8205 gboolean is_string = FALSE;
8207 g_assert (!t->byref);
8209 eklass = klass->element_class;
8211 mono_marshal_load_type_info (eklass);
8213 if (eklass == mono_defaults.string_class) {
8215 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8218 g_assert_not_reached ();
8222 esize = sizeof (gpointer);
8224 esize = mono_class_native_size (eklass, NULL);
8226 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8227 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8229 mono_mb_emit_stloc (mb, src);
8230 mono_mb_emit_ldloc (mb, src);
8231 mono_mb_emit_stloc (mb, 3);
8233 /* Check for null */
8234 mono_mb_emit_ldloc (mb, src);
8235 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8237 /* Allocate native array */
8238 mono_mb_emit_icon (mb, esize);
8239 mono_mb_emit_ldloc (mb, src);
8240 mono_mb_emit_byte (mb, CEE_LDLEN);
8242 if (eklass == mono_defaults.string_class) {
8243 /* Make the array bigger for the terminating null */
8244 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8245 mono_mb_emit_byte (mb, CEE_ADD);
8247 mono_mb_emit_byte (mb, CEE_MUL);
8248 mono_mb_emit_icall (mb, mono_marshal_alloc);
8249 mono_mb_emit_stloc (mb, dest);
8250 mono_mb_emit_ldloc (mb, dest);
8251 mono_mb_emit_stloc (mb, 3);
8253 /* Emit marshalling loop */
8254 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8255 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8256 mono_mb_emit_stloc (mb, index_var);
8258 mono_mb_emit_ldloc (mb, index_var);
8259 mono_mb_emit_ldloc (mb, src);
8260 mono_mb_emit_byte (mb, CEE_LDLEN);
8261 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8263 /* Emit marshalling code */
8265 g_assert (conv != -1);
8268 mono_mb_emit_ldloc (mb, dest);
8271 mono_mb_emit_ldloc (mb, src);
8272 mono_mb_emit_ldloc (mb, index_var);
8274 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8276 mono_mb_emit_icall (mb, conv_to_icall (conv));
8277 mono_mb_emit_byte (mb, CEE_STIND_I);
8280 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8281 mono_mb_emit_exception_marshal_directive (mb, msg);
8285 mono_mb_emit_add_to_local (mb, index_var, 1);
8286 mono_mb_emit_add_to_local (mb, dest, esize);
8288 mono_mb_emit_byte (mb, CEE_BR);
8289 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
8291 mono_mb_patch_branch (mb, label3);
8292 mono_mb_patch_branch (mb, label1);
8296 g_assert_not_reached ();
8303 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8304 MonoMarshalSpec *spec,
8305 int conv_arg, MonoType **conv_arg_type,
8306 MarshalAction action)
8308 MonoMethodBuilder *mb = m->mb;
8311 case MARSHAL_ACTION_CONV_IN: {
8312 MonoType *local_type;
8313 int variant_bool = 0;
8317 local_type = &mono_defaults.int32_class->byval_arg;
8319 switch (spec->native) {
8320 case MONO_NATIVE_I1:
8321 case MONO_NATIVE_U1:
8322 local_type = &mono_defaults.byte_class->byval_arg;
8324 case MONO_NATIVE_VARIANTBOOL:
8325 local_type = &mono_defaults.int16_class->byval_arg;
8329 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8330 local_type = &mono_defaults.int32_class->byval_arg;
8334 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8335 conv_arg = mono_mb_add_local (mb, local_type);
8336 mono_mb_emit_ldarg (mb, argnum);
8337 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8339 mono_mb_emit_byte (mb, CEE_NEG);
8340 mono_mb_emit_stloc (mb, conv_arg);
8344 case MARSHAL_ACTION_CONV_OUT:
8347 mono_mb_emit_ldarg (mb, argnum);
8348 mono_mb_emit_ldloc (mb, conv_arg);
8349 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8350 mono_mb_emit_byte (mb, CEE_NEG);
8351 mono_mb_emit_byte (mb, CEE_STIND_I1);
8354 case MARSHAL_ACTION_PUSH:
8356 mono_mb_emit_ldloc_addr (mb, conv_arg);
8358 mono_mb_emit_ldarg (mb, argnum);
8361 case MARSHAL_ACTION_CONV_RESULT:
8362 /* maybe we need to make sure that it fits within 8 bits */
8363 mono_mb_emit_stloc (mb, 3);
8367 g_assert_not_reached ();
8374 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8375 MonoMarshalSpec *spec, int conv_arg,
8376 MonoType **conv_arg_type, MarshalAction action)
8378 MonoMethodBuilder *mb = m->mb;
8381 case MARSHAL_ACTION_CONV_IN:
8382 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8383 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8384 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8388 case MARSHAL_ACTION_PUSH:
8389 mono_mb_emit_ldarg (mb, argnum);
8392 case MARSHAL_ACTION_CONV_RESULT:
8393 /* no conversions necessary */
8394 mono_mb_emit_stloc (mb, 3);
8405 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8406 MonoMarshalSpec *spec, int conv_arg,
8407 MonoType **conv_arg_type, MarshalAction action)
8409 MonoMethodBuilder *mb = m->mb;
8412 case MARSHAL_ACTION_PUSH:
8413 /* fixme: dont know how to marshal that. We cant simply
8414 * convert it to a one byte UTF8 character, because an
8415 * unicode character may need more that one byte in UTF8 */
8416 mono_mb_emit_ldarg (mb, argnum);
8419 case MARSHAL_ACTION_CONV_RESULT:
8420 /* fixme: we need conversions here */
8421 mono_mb_emit_stloc (mb, 3);
8432 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8433 MonoMarshalSpec *spec, int conv_arg,
8434 MonoType **conv_arg_type, MarshalAction action)
8436 MonoMethodBuilder *mb = m->mb;
8439 case MARSHAL_ACTION_PUSH:
8440 mono_mb_emit_ldarg (mb, argnum);
8443 case MARSHAL_ACTION_CONV_RESULT:
8444 /* no conversions necessary */
8445 mono_mb_emit_stloc (mb, 3);
8456 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8457 MonoMarshalSpec *spec, int conv_arg,
8458 MonoType **conv_arg_type, MarshalAction action)
8460 /* Ensure that we have marshalling info for this param */
8461 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8463 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8464 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8466 if (spec && spec->native == MONO_NATIVE_ASANY)
8467 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8470 case MONO_TYPE_VALUETYPE:
8471 if (t->data.klass == mono_defaults.handleref_class)
8472 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8474 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8475 case MONO_TYPE_STRING:
8476 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8477 case MONO_TYPE_CLASS:
8478 case MONO_TYPE_OBJECT:
8479 if (spec && spec->native == MONO_NATIVE_STRUCT)
8480 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8482 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8483 spec->native == MONO_NATIVE_IDISPATCH ||
8484 spec->native == MONO_NATIVE_INTERFACE))
8485 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8487 if (mono_defaults.safehandle_class != NULL &&
8488 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8489 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8491 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8492 case MONO_TYPE_ARRAY:
8493 case MONO_TYPE_SZARRAY:
8494 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8495 case MONO_TYPE_BOOLEAN:
8496 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8498 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8499 case MONO_TYPE_CHAR:
8500 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8513 case MONO_TYPE_FNPTR:
8514 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8521 * mono_marshal_emit_native_wrapper:
8522 * @image: the image to use for looking up custom marshallers
8523 * @sig: The signature of the native function
8524 * @piinfo: Marshalling information
8525 * @mspecs: Marshalling information
8526 * @func: the native function to call
8528 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8531 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8533 EmitMarshalContext m;
8534 MonoMethodSignature *csig;
8536 int i, argnum, *tmp_locals;
8538 static MonoMethodSignature *get_last_error_sig = NULL;
8543 /* we copy the signature, so that we can set pinvoke to 0 */
8544 csig = signature_dup (mb->method->klass->image, sig);
8549 /* we allocate local for use with emit_struct_conv() */
8550 /* allocate local 0 (pointer) src_ptr */
8551 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8552 /* allocate local 1 (pointer) dst_ptr */
8553 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8554 /* allocate local 2 (boolean) delete_old */
8555 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8557 /* delete_old = FALSE */
8558 mono_mb_emit_icon (mb, 0);
8559 mono_mb_emit_stloc (mb, 2);
8561 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8562 /* allocate local 3 to store the return value */
8563 mono_mb_add_local (mb, sig->ret);
8566 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8567 /* Return type custom marshaling */
8569 * Since we can't determine the return type of the unmanaged function,
8570 * we assume it returns a pointer, and pass that pointer to
8571 * MarshalNativeToManaged.
8573 csig->ret = &mono_defaults.int_class->byval_arg;
8576 /* we first do all conversions */
8577 tmp_locals = alloca (sizeof (int) * sig->param_count);
8578 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8580 for (i = 0; i < sig->param_count; i ++) {
8581 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8584 /* push all arguments */
8587 mono_mb_emit_byte (mb, CEE_LDARG_0);
8590 for (i = 0; i < sig->param_count; i++) {
8591 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8594 /* call the native method */
8595 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8596 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8599 mono_mb_emit_native_call (mb, csig, func);
8602 /* Set LastError if needed */
8603 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8604 if (!get_last_error_sig) {
8605 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8606 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8607 get_last_error_sig->pinvoke = 1;
8610 #ifdef PLATFORM_WIN32
8612 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8613 * clobber its value.
8615 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8616 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8618 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8622 /* convert the result */
8623 if (!sig->ret->byref) {
8624 MonoMarshalSpec *spec = mspecs [0];
8625 type = sig->ret->type;
8627 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8628 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8633 case MONO_TYPE_VOID:
8635 case MONO_TYPE_VALUETYPE:
8636 klass = sig->ret->data.klass;
8637 if (klass->enumtype) {
8638 type = sig->ret->data.klass->enum_basetype->type;
8641 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8655 case MONO_TYPE_FNPTR:
8656 case MONO_TYPE_STRING:
8657 case MONO_TYPE_CLASS:
8658 case MONO_TYPE_OBJECT:
8659 case MONO_TYPE_BOOLEAN:
8660 case MONO_TYPE_ARRAY:
8661 case MONO_TYPE_SZARRAY:
8662 case MONO_TYPE_CHAR:
8664 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8666 case MONO_TYPE_TYPEDBYREF:
8668 g_warning ("return type 0x%02x unknown", sig->ret->type);
8669 g_assert_not_reached ();
8673 mono_mb_emit_stloc (mb, 3);
8677 * Need to call this after converting the result since MONO_VTADDR needs
8678 * to be adjacent to the call instruction.
8680 emit_thread_interrupt_checkpoint (mb);
8682 /* we need to convert byref arguments back and free string arrays */
8683 for (i = 0; i < sig->param_count; i++) {
8684 MonoType *t = sig->params [i];
8685 MonoMarshalSpec *spec = mspecs [i + 1];
8687 argnum = i + sig->hasthis;
8689 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8690 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8695 case MONO_TYPE_STRING:
8696 case MONO_TYPE_VALUETYPE:
8697 case MONO_TYPE_CLASS:
8698 case MONO_TYPE_OBJECT:
8699 case MONO_TYPE_SZARRAY:
8700 case MONO_TYPE_BOOLEAN:
8701 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8706 if (!MONO_TYPE_IS_VOID(sig->ret))
8707 mono_mb_emit_ldloc (mb, 3);
8709 mono_mb_emit_byte (mb, CEE_RET);
8713 * mono_marshal_get_native_wrapper:
8714 * @method: The MonoMethod to wrap.
8716 * generates IL code for the pinvoke wrapper (the generated method
8717 * calls the unmanaged code in piinfo->addr)
8720 mono_marshal_get_native_wrapper (MonoMethod *method)
8722 MonoMethodSignature *sig, *csig;
8723 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8724 MonoMethodBuilder *mb;
8725 MonoMarshalSpec **mspecs;
8728 gboolean pinvoke = FALSE;
8731 const char *exc_class = "MissingMethodException";
8732 const char *exc_arg = NULL;
8734 g_assert (method != NULL);
8735 g_assert (mono_method_signature (method)->pinvoke);
8737 cache = method->klass->image->native_wrapper_cache;
8738 if ((res = mono_marshal_find_in_cache (cache, method)))
8741 if (MONO_CLASS_IS_IMPORT (method->klass))
8742 return cominterop_get_native_wrapper (method);
8744 sig = mono_method_signature (method);
8746 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8747 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8750 if (!piinfo->addr) {
8752 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8754 piinfo->addr = mono_lookup_internal_call (method);
8757 /* hack - redirect certain string constructors to CreateString */
8758 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8759 g_assert (!pinvoke);
8760 g_assert (method->string_ctor);
8761 g_assert (sig->hasthis);
8763 /* CreateString returns a value */
8764 csig = signature_dup (method->klass->image, sig);
8765 csig->ret = &mono_defaults.string_class->byval_arg;
8769 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8770 if (!strcmp ("CreateString", res->name) &&
8771 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8773 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8774 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8776 /* create a wrapper to preserve .ctor in stack trace */
8777 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8779 mono_mb_emit_byte (mb, CEE_LDARG_0);
8780 for (i = 1; i <= csig->param_count; i++)
8781 mono_mb_emit_ldarg (mb, i);
8782 mono_mb_emit_managed_call (mb, res, NULL);
8783 mono_mb_emit_byte (mb, CEE_RET);
8785 /* use native_wrapper_cache because internal calls are looked up there */
8786 res = mono_mb_create_and_cache (cache, method,
8787 mb, csig, csig->param_count + 1);
8795 /* exception will be thrown */
8796 piinfo->addr = NULL;
8797 g_warning ("cannot find CreateString for .ctor");
8800 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8802 mb->method->save_lmf = 1;
8804 if (!piinfo->addr) {
8805 mono_mb_emit_exception (mb, exc_class, exc_arg);
8806 csig = signature_dup (method->klass->image, sig);
8808 res = mono_mb_create_and_cache (cache, method,
8809 mb, csig, csig->param_count + 16);
8814 /* internal calls: we simply push all arguments and call the method (no conversions) */
8815 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8817 /* hack - string constructors returns a value */
8818 if (method->string_ctor) {
8819 csig = signature_dup (method->klass->image, sig);
8820 csig->ret = &mono_defaults.string_class->byval_arg;
8825 mono_mb_emit_byte (mb, CEE_LDARG_0);
8827 for (i = 0; i < sig->param_count; i++)
8828 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8830 g_assert (piinfo->addr);
8831 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8832 emit_thread_interrupt_checkpoint (mb);
8833 mono_mb_emit_byte (mb, CEE_RET);
8835 csig = signature_dup (method->klass->image, csig);
8837 res = mono_mb_create_and_cache (cache, method,
8838 mb, csig, csig->param_count + 16);
8845 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8846 mono_method_get_marshal_info (method, mspecs);
8848 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr);
8850 csig = signature_dup (method->klass->image, sig);
8852 res = mono_mb_create_and_cache (cache, method,
8853 mb, csig, csig->param_count + 16);
8856 for (i = sig->param_count; i >= 0; i--)
8858 mono_metadata_free_marshal_spec (mspecs [i]);
8861 /* 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)); */
8867 * mono_marshal_get_native_func_wrapper:
8868 * @image: The image to use for memory allocation and for looking up custom marshallers.
8869 * @sig: The signature of the function
8870 * @func: The native function to wrap
8872 * Returns a wrapper method around native functions, similar to the pinvoke
8876 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8877 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8879 MonoMethodSignature *csig;
8881 MonoMethodBuilder *mb;
8886 cache = image->native_wrapper_cache;
8887 if ((res = mono_marshal_find_in_cache (cache, func)))
8890 name = g_strdup_printf ("wrapper_native_%p", func);
8891 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8892 mb->method->save_lmf = 1;
8894 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func);
8896 csig = signature_dup (image, sig);
8898 res = mono_mb_create_and_cache (cache, func,
8899 mb, csig, csig->param_count + 16);
8902 /* 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)); */
8907 /* FIXME: moving GC */
8909 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8911 MonoMethodSignature *sig, *csig;
8917 /* allocate local 0 (pointer) src_ptr */
8918 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8919 /* allocate local 1 (pointer) dst_ptr */
8920 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8921 /* allocate local 2 (boolean) delete_old */
8922 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8924 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8925 /* allocate local 3 to store the return value */
8926 mono_mb_add_local (mb, sig->ret);
8929 mono_mb_emit_icon (mb, 0);
8930 mono_mb_emit_stloc (mb, 2);
8932 /* fixme: howto handle this ? */
8935 /* FIXME: need a solution for the moving GC here */
8936 mono_mb_emit_ptr (mb, this);
8939 g_assert_not_reached ();
8943 /* we first do all conversions */
8944 tmp_locals = alloca (sizeof (int) * sig->param_count);
8945 for (i = 0; i < sig->param_count; i ++) {
8946 MonoType *t = sig->params [i];
8949 case MONO_TYPE_OBJECT:
8950 case MONO_TYPE_CLASS:
8951 case MONO_TYPE_VALUETYPE:
8952 case MONO_TYPE_ARRAY:
8953 case MONO_TYPE_SZARRAY:
8954 case MONO_TYPE_STRING:
8955 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8964 emit_thread_interrupt_checkpoint (mb);
8966 for (i = 0; i < sig->param_count; i++) {
8967 MonoType *t = sig->params [i];
8969 if (tmp_locals [i]) {
8971 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8973 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8976 mono_mb_emit_ldarg (mb, i);
8979 mono_mb_emit_managed_call (mb, method, NULL);
8981 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8982 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8985 if (!sig->ret->byref) {
8986 switch (sig->ret->type) {
8987 case MONO_TYPE_VOID:
8989 case MONO_TYPE_BOOLEAN:
9003 case MONO_TYPE_OBJECT:
9004 mono_mb_emit_stloc (mb, 3);
9006 case MONO_TYPE_STRING:
9007 csig->ret = &mono_defaults.int_class->byval_arg;
9008 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9010 case MONO_TYPE_VALUETYPE:
9011 case MONO_TYPE_CLASS:
9012 case MONO_TYPE_SZARRAY:
9013 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9016 g_warning ("return type 0x%02x unknown", sig->ret->type);
9017 g_assert_not_reached ();
9020 mono_mb_emit_stloc (mb, 3);
9023 /* Convert byref arguments back */
9024 for (i = 0; i < sig->param_count; i ++) {
9025 MonoType *t = sig->params [i];
9026 MonoMarshalSpec *spec = mspecs [i + 1];
9028 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
9029 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9031 else if (t->byref) {
9033 case MONO_TYPE_CLASS:
9034 case MONO_TYPE_VALUETYPE:
9035 case MONO_TYPE_OBJECT:
9036 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9040 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
9041 /* The [Out] information is encoded in the delegate signature */
9043 case MONO_TYPE_SZARRAY:
9044 case MONO_TYPE_CLASS:
9045 case MONO_TYPE_VALUETYPE:
9046 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9049 g_assert_not_reached ();
9054 if (m->retobj_var) {
9055 mono_mb_emit_ldloc (mb, m->retobj_var);
9056 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9057 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
9060 if (!MONO_TYPE_IS_VOID(sig->ret))
9061 mono_mb_emit_ldloc (mb, 3);
9062 mono_mb_emit_byte (mb, CEE_RET);
9068 * generates IL code to call managed methods from unmanaged code
9071 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
9073 static MonoClass *UnmanagedFunctionPointerAttribute;
9074 MonoMethodSignature *sig, *csig, *invoke_sig;
9075 MonoMethodBuilder *mb;
9076 MonoMethod *res, *invoke;
9077 MonoMarshalSpec **mspecs;
9078 MonoMethodPInvoke piinfo;
9081 EmitMarshalContext m;
9083 g_assert (method != NULL);
9084 g_assert (!mono_method_signature (method)->pinvoke);
9087 * FIXME: Should cache the method+delegate type pair, since the same method
9088 * could be called with different delegates, thus different marshalling
9091 cache = method->klass->image->managed_wrapper_cache;
9092 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
9095 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
9096 invoke_sig = mono_method_signature (invoke);
9098 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9099 mono_method_get_marshal_info (invoke, mspecs);
9101 sig = mono_method_signature (method);
9103 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9106 /* we copy the signature, so that we can modify it */
9108 /* Need to free this later */
9109 csig = mono_metadata_signature_dup (sig);
9111 csig = signature_dup (method->klass->image, sig);
9120 m.image = method->klass->image;
9122 #ifdef PLATFORM_WIN32
9124 * Under windows, delegates passed to native code must use the STDCALL
9125 * calling convention.
9127 csig->call_convention = MONO_CALL_STDCALL;
9130 /* Change default calling convention if needed */
9131 /* Why is this a modopt ? */
9132 if (invoke_sig->ret && invoke_sig->ret->num_mods) {
9133 for (i = 0; i < invoke_sig->ret->num_mods; ++i) {
9134 MonoClass *cmod_class = mono_class_get (delegate_klass->image, invoke_sig->ret->modifiers [i].token);
9135 g_assert (cmod_class);
9136 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
9137 if (!strcmp (cmod_class->name, "CallConvCdecl"))
9138 csig->call_convention = MONO_CALL_C;
9139 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
9140 csig->call_convention = MONO_CALL_STDCALL;
9141 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
9142 csig->call_convention = MONO_CALL_FASTCALL;
9143 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
9144 csig->call_convention = MONO_CALL_THISCALL;
9149 /* Handle the UnmanagedFunctionPointerAttribute */
9150 if (!UnmanagedFunctionPointerAttribute)
9151 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9153 /* The attribute is only available in Net 2.0 */
9154 if (UnmanagedFunctionPointerAttribute) {
9155 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9156 MonoCustomAttrInfo *cinfo;
9159 * The pinvoke attributes are stored in a real custom attribute so we have to
9162 cinfo = mono_custom_attrs_from_class (delegate_klass);
9164 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9166 memset (&piinfo, 0, sizeof (piinfo));
9168 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9170 csig->call_convention = attr->call_conv - 1;
9173 mono_custom_attrs_free (cinfo);
9177 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9180 res = mono_mb_create_and_cache (cache, method,
9181 mb, csig, sig->param_count + 16);
9184 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9188 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9190 mono_metadata_free_marshal_spec (mspecs [i]);
9193 /* 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)); */
9198 static MonoReflectionType *
9199 type_from_handle (MonoType *handle)
9201 MonoDomain *domain = mono_domain_get ();
9202 MonoClass *klass = mono_class_from_mono_type (handle);
9204 MONO_ARCH_SAVE_REGS;
9206 mono_class_init (klass);
9207 return mono_type_get_object (domain, handle);
9211 * mono_marshal_get_isinst:
9212 * @klass: the type of the field
9214 * This method generates a function which can be used to check if an object is
9215 * an instance of the given type, icluding the case where the object is a proxy.
9216 * The generated function has the following signature:
9217 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9220 mono_marshal_get_isinst (MonoClass *klass)
9222 static MonoMethodSignature *isint_sig = NULL;
9225 int pos_was_ok, pos_failed, pos_end, pos_end2;
9227 MonoMethodBuilder *mb;
9229 cache = klass->image->isinst_cache;
9230 if ((res = mono_marshal_find_in_cache (cache, klass)))
9234 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9235 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9236 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9237 isint_sig->pinvoke = 0;
9240 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9241 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9244 mb->method->save_lmf = 1;
9246 /* check if the object is a proxy that needs special cast */
9247 mono_mb_emit_ldarg (mb, 0);
9248 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9249 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9251 /* The result of MONO_ISINST can be:
9252 0) the type check succeeded
9253 1) the type check did not succeed
9254 2) a CanCastTo call is needed */
9256 mono_mb_emit_byte (mb, CEE_DUP);
9257 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9259 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9260 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9262 /* get the real proxy from the transparent proxy*/
9264 mono_mb_emit_ldarg (mb, 0);
9265 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9266 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9270 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
9271 mono_mb_emit_byte (mb, CEE_LDNULL);
9272 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9276 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
9277 mono_mb_emit_byte (mb, CEE_POP);
9278 mono_mb_emit_ldarg (mb, 0);
9282 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
9283 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
9284 mono_mb_emit_byte (mb, CEE_RET);
9286 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9293 * mono_marshal_get_castclass:
9294 * @klass: the type of the field
9296 * This method generates a function which can be used to cast an object to
9297 * an instance of the given type, icluding the case where the object is a proxy.
9298 * The generated function has the following signature:
9299 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9302 mono_marshal_get_castclass (MonoClass *klass)
9304 static MonoMethodSignature *castclass_sig = NULL;
9307 int pos_was_ok, pos_was_ok2;
9309 MonoMethodBuilder *mb;
9311 cache = klass->image->castclass_cache;
9312 if ((res = mono_marshal_find_in_cache (cache, klass)))
9315 if (!castclass_sig) {
9316 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9317 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9318 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9319 castclass_sig->pinvoke = 0;
9322 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9323 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9326 mb->method->save_lmf = 1;
9328 /* check if the object is a proxy that needs special cast */
9329 mono_mb_emit_ldarg (mb, 0);
9330 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9331 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9333 /* The result of MONO_ISINST can be:
9334 0) the cast is valid
9335 1) cast of unknown proxy type
9336 or an exception if the cast is is invalid
9339 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9341 /* get the real proxy from the transparent proxy*/
9343 mono_mb_emit_ldarg (mb, 0);
9344 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9345 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9348 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9351 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
9352 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
9353 mono_mb_emit_ldarg (mb, 0);
9356 mono_mb_emit_byte (mb, CEE_RET);
9358 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9365 mono_marshal_get_proxy_cancast (MonoClass *klass)
9367 static MonoMethodSignature *isint_sig = NULL;
9370 int pos_failed, pos_end;
9372 MonoMethod *can_cast_to;
9373 MonoMethodDesc *desc;
9374 MonoMethodBuilder *mb;
9376 cache = klass->image->proxy_isinst_cache;
9377 if ((res = mono_marshal_find_in_cache (cache, klass)))
9381 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9382 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9383 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9384 isint_sig->pinvoke = 0;
9387 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9388 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9391 mb->method->save_lmf = 1;
9393 /* get the real proxy from the transparent proxy*/
9394 mono_mb_emit_ldarg (mb, 0);
9395 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9396 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9398 /* get the reflection type from the type handle */
9399 mono_mb_emit_ptr (mb, &klass->byval_arg);
9400 mono_mb_emit_icall (mb, type_from_handle);
9402 mono_mb_emit_ldarg (mb, 0);
9404 /* make the call to CanCastTo (type, ob) */
9405 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9406 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9407 g_assert (can_cast_to);
9408 mono_method_desc_free (desc);
9409 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9411 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9413 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9414 mono_mb_emit_ptr (mb, &klass->byval_arg);
9415 mono_mb_emit_icall (mb, type_from_handle);
9416 mono_mb_emit_ldarg (mb, 0);
9418 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9419 emit_thread_interrupt_checkpoint (mb);
9421 mono_mb_emit_ldarg (mb, 0);
9422 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9426 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
9427 mono_mb_emit_byte (mb, CEE_LDNULL);
9431 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
9432 mono_mb_emit_byte (mb, CEE_RET);
9434 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9441 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9444 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9445 klass = mono_class_from_mono_type (rtype->type);
9446 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9450 * mono_marshal_get_struct_to_ptr:
9453 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9456 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9458 MonoMethodBuilder *mb;
9459 static MonoMethod *stoptr = NULL;
9462 g_assert (klass != NULL);
9464 mono_marshal_load_type_info (klass);
9466 if (klass->marshal_info->str_to_ptr)
9467 return klass->marshal_info->str_to_ptr;
9470 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9473 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9475 if (klass->blittable) {
9476 mono_mb_emit_byte (mb, CEE_LDARG_1);
9477 mono_mb_emit_byte (mb, CEE_LDARG_0);
9478 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9479 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9480 mono_mb_emit_byte (mb, CEE_PREFIX1);
9481 mono_mb_emit_byte (mb, CEE_CPBLK);
9484 /* allocate local 0 (pointer) src_ptr */
9485 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9486 /* allocate local 1 (pointer) dst_ptr */
9487 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9488 /* allocate local 2 (boolean) delete_old */
9489 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9490 mono_mb_emit_byte (mb, CEE_LDARG_2);
9491 mono_mb_emit_stloc (mb, 2);
9493 /* initialize src_ptr to point to the start of object data */
9494 mono_mb_emit_byte (mb, CEE_LDARG_0);
9495 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9496 mono_mb_emit_stloc (mb, 0);
9498 /* initialize dst_ptr */
9499 mono_mb_emit_byte (mb, CEE_LDARG_1);
9500 mono_mb_emit_stloc (mb, 1);
9502 emit_struct_conv (mb, klass, FALSE);
9505 mono_mb_emit_byte (mb, CEE_RET);
9507 res = mono_mb_create_method (mb, mono_method_signature (stoptr), 0);
9510 klass->marshal_info->str_to_ptr = res;
9515 * mono_marshal_get_ptr_to_struct:
9518 * generates IL code for PtrToStructure (IntPtr src, object structure)
9521 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9523 MonoMethodBuilder *mb;
9524 static MonoMethodSignature *ptostr = NULL;
9527 g_assert (klass != NULL);
9529 mono_marshal_load_type_info (klass);
9531 if (klass->marshal_info->ptr_to_str)
9532 return klass->marshal_info->ptr_to_str;
9535 /* Create the signature corresponding to
9536 static void PtrToStructure (IntPtr ptr, object structure);
9537 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9538 ptostr = mono_create_icall_signature ("void ptr object");
9540 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9542 if (klass->blittable) {
9543 mono_mb_emit_byte (mb, CEE_LDARG_1);
9544 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9545 mono_mb_emit_byte (mb, CEE_LDARG_0);
9546 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9547 mono_mb_emit_byte (mb, CEE_PREFIX1);
9548 mono_mb_emit_byte (mb, CEE_CPBLK);
9551 /* allocate local 0 (pointer) src_ptr */
9552 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9553 /* allocate local 1 (pointer) dst_ptr */
9554 mono_mb_add_local (mb, &klass->this_arg);
9556 /* initialize src_ptr to point to the start of object data */
9557 mono_mb_emit_byte (mb, CEE_LDARG_0);
9558 mono_mb_emit_stloc (mb, 0);
9560 /* initialize dst_ptr */
9561 mono_mb_emit_byte (mb, CEE_LDARG_1);
9562 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9563 mono_mb_emit_stloc (mb, 1);
9565 emit_struct_conv (mb, klass, TRUE);
9568 mono_mb_emit_byte (mb, CEE_RET);
9570 res = mono_mb_create_method (mb, ptostr, 0);
9573 klass->marshal_info->ptr_to_str = res;
9578 * generates IL code for the synchronized wrapper: the generated method
9579 * calls METHOD while locking 'this' or the parent type.
9582 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9584 static MonoMethod *enter_method, *exit_method;
9585 MonoMethodSignature *sig;
9586 MonoExceptionClause *clause;
9587 MonoMethodHeader *header;
9588 MonoMethodBuilder *mb;
9591 int i, pos, this_local, ret_local = 0;
9595 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9598 cache = method->klass->image->synchronized_cache;
9599 if ((res = mono_marshal_find_in_cache (cache, method)))
9602 sig = signature_dup (method->klass->image, mono_method_signature (method));
9605 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9608 if (!MONO_TYPE_IS_VOID (sig->ret))
9609 ret_local = mono_mb_add_local (mb, sig->ret);
9612 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9614 mono_loader_lock ();
9615 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
9616 mono_loader_unlock ();
9617 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9619 if (!enter_method) {
9620 MonoMethodDesc *desc;
9622 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9623 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9624 g_assert (enter_method);
9625 mono_method_desc_free (desc);
9626 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9627 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9628 g_assert (exit_method);
9629 mono_method_desc_free (desc);
9632 /* Push this or the type object */
9633 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9635 * GetTypeFromHandle isn't called as a managed method because it has
9636 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9637 * transformed into something else by the JIT.
9639 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9640 mono_mb_emit_icall (mb, type_from_handle);
9643 mono_mb_emit_ldarg (mb, 0);
9644 mono_mb_emit_stloc (mb, this_local);
9646 /* Call Monitor::Enter() */
9647 mono_mb_emit_ldloc (mb, this_local);
9648 mono_mb_emit_managed_call (mb, enter_method, NULL);
9650 clause->try_offset = mb->pos;
9652 /* Call the method */
9654 mono_mb_emit_ldarg (mb, 0);
9655 for (i = 0; i < sig->param_count; i++)
9656 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9658 /* this is needed to avoid recursion */
9659 mono_mb_emit_byte (mb, CEE_PREFIX1);
9660 mono_mb_emit_op (mb, CEE_LDFTN, method);
9661 mono_mb_emit_calli (mb, mono_method_signature (method));
9663 if (!MONO_TYPE_IS_VOID (sig->ret))
9664 mono_mb_emit_stloc (mb, ret_local);
9666 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9668 clause->try_len = mb->pos - clause->try_offset;
9669 clause->handler_offset = mb->pos;
9671 /* Call Monitor::Exit() */
9672 mono_mb_emit_ldloc (mb, this_local);
9673 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
9674 mono_mb_emit_managed_call (mb, exit_method, NULL);
9675 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9677 clause->handler_len = mb->pos - clause->handler_offset;
9679 mono_mb_patch_branch (mb, pos);
9680 if (!MONO_TYPE_IS_VOID (sig->ret))
9681 mono_mb_emit_ldloc (mb, ret_local);
9682 mono_mb_emit_byte (mb, CEE_RET);
9684 res = mono_mb_create_and_cache (cache, method,
9685 mb, sig, sig->param_count + 16);
9688 header = ((MonoMethodNormal *)res)->header;
9689 header->num_clauses = 1;
9690 header->clauses = clause;
9697 * the returned method calls 'method' unboxing the this argument
9700 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9702 MonoMethodSignature *sig = mono_method_signature (method);
9704 MonoMethodBuilder *mb;
9708 cache = method->klass->image->unbox_wrapper_cache;
9709 if ((res = mono_marshal_find_in_cache (cache, method)))
9712 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9714 g_assert (sig->hasthis);
9716 mono_mb_emit_ldarg (mb, 0);
9717 mono_mb_emit_icon (mb, sizeof (MonoObject));
9718 mono_mb_emit_byte (mb, CEE_ADD);
9719 for (i = 0; i < sig->param_count; ++i)
9720 mono_mb_emit_ldarg (mb, i + 1);
9721 mono_mb_emit_managed_call (mb, method, NULL);
9722 mono_mb_emit_byte (mb, CEE_RET);
9724 res = mono_mb_create_and_cache (cache, method,
9725 mb, sig, sig->param_count + 16);
9728 /* 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)); */
9734 mono_marshal_get_stelemref ()
9736 static MonoMethod* ret = NULL;
9737 MonoMethodSignature *sig;
9738 MonoMethodBuilder *mb;
9740 guint32 b1, b2, b3, b4;
9743 int array_slot_addr;
9748 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9751 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9753 /* void stelemref (void* array, int idx, void* value) */
9754 sig->ret = &mono_defaults.void_class->byval_arg;
9755 sig->params [0] = &mono_defaults.object_class->byval_arg;
9756 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9757 sig->params [2] = &mono_defaults.object_class->byval_arg;
9759 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9760 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9761 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9765 <ldelema (bound check)>
9769 aklass = array->vtable->klass->element_class;
9770 vklass = value->vtable->klass;
9772 if (vklass->idepth < aklass->idepth)
9775 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9779 *array_slot_addr = value;
9783 if (mono_object_isinst (value, aklass))
9786 throw new ArrayTypeMismatchException ();
9789 /* ldelema (implicit bound check) */
9790 mono_mb_emit_ldarg (mb, 0);
9791 mono_mb_emit_ldarg (mb, 1);
9792 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9793 mono_mb_emit_stloc (mb, array_slot_addr);
9795 /* if (!value) goto do_store */
9796 mono_mb_emit_ldarg (mb, 2);
9797 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9799 /* aklass = array->vtable->klass->element_class */
9800 mono_mb_emit_ldarg (mb, 0);
9801 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9802 mono_mb_emit_byte (mb, CEE_LDIND_I);
9803 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9804 mono_mb_emit_byte (mb, CEE_LDIND_I);
9805 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9806 mono_mb_emit_byte (mb, CEE_LDIND_I);
9807 mono_mb_emit_stloc (mb, aklass);
9809 /* vklass = value->vtable->klass */
9810 mono_mb_emit_ldarg (mb, 2);
9811 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9812 mono_mb_emit_byte (mb, CEE_LDIND_I);
9813 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9814 mono_mb_emit_byte (mb, CEE_LDIND_I);
9815 mono_mb_emit_stloc (mb, vklass);
9817 /* if (vklass->idepth < aklass->idepth) goto failue */
9818 mono_mb_emit_ldloc (mb, vklass);
9819 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9820 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9822 mono_mb_emit_ldloc (mb, aklass);
9823 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9824 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9826 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9828 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9829 mono_mb_emit_ldloc (mb, vklass);
9830 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9831 mono_mb_emit_byte (mb, CEE_LDIND_I);
9833 mono_mb_emit_ldloc (mb, aklass);
9834 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9835 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9836 mono_mb_emit_icon (mb, 1);
9837 mono_mb_emit_byte (mb, CEE_SUB);
9838 mono_mb_emit_icon (mb, sizeof (void*));
9839 mono_mb_emit_byte (mb, CEE_MUL);
9840 mono_mb_emit_byte (mb, CEE_ADD);
9841 mono_mb_emit_byte (mb, CEE_LDIND_I);
9843 mono_mb_emit_ldloc (mb, aklass);
9845 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9849 mono_mb_patch_branch (mb, b1);
9850 mono_mb_emit_ldloc (mb, array_slot_addr);
9851 mono_mb_emit_ldarg (mb, 2);
9852 mono_mb_emit_byte (mb, CEE_STIND_REF);
9854 mono_mb_emit_byte (mb, CEE_RET);
9857 mono_mb_patch_branch (mb, b2);
9858 mono_mb_patch_branch (mb, b3);
9860 mono_mb_emit_ldarg (mb, 2);
9861 mono_mb_emit_ldloc (mb, aklass);
9862 mono_mb_emit_icall (mb, mono_object_isinst);
9864 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9865 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9866 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9868 mono_mb_emit_byte (mb, CEE_RET);
9869 ret = mono_mb_create_method (mb, sig, 4);
9880 /* LOCKING: vars accessed under the marshal lock */
9881 static ArrayElemAddr *elem_addr_cache = NULL;
9882 static int elem_addr_cache_size = 0;
9883 static int elem_addr_cache_next = 0;
9886 * mono_marshal_get_array_address:
9887 * @rank: rank of the array type
9888 * @elem_size: size in bytes of an element of an array.
9890 * Returns a MonoMethd that implements the code to get the address
9891 * of an element in a multi-dimenasional array of @rank dimensions.
9892 * The returned method takes an array as the first argument and then
9893 * @rank indexes for the @rank dimensions.
9896 mono_marshal_get_array_address (int rank, int elem_size)
9899 MonoMethodBuilder *mb;
9900 MonoMethodSignature *sig;
9901 int i, bounds, ind, realidx;
9902 int branch_pos, *branch_positions;
9906 mono_marshal_lock ();
9907 for (i = 0; i < elem_addr_cache_next; ++i) {
9908 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9909 ret = elem_addr_cache [i].method;
9913 mono_marshal_unlock ();
9917 branch_positions = g_new0 (int, rank);
9919 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9921 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9922 sig->ret = &mono_defaults.int_class->byval_arg;
9923 sig->params [0] = &mono_defaults.object_class->byval_arg;
9924 for (i = 0; i < rank; ++i) {
9925 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9928 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9930 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9931 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9932 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9934 /* bounds = array->bounds; */
9935 mono_mb_emit_ldarg (mb, 0);
9936 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9937 mono_mb_emit_byte (mb, CEE_LDIND_I);
9938 mono_mb_emit_stloc (mb, bounds);
9940 /* ind is the overall element index, realidx is the partial index in a single dimension */
9941 /* ind = idx0 - bounds [0].lower_bound */
9942 mono_mb_emit_ldarg (mb, 1);
9943 mono_mb_emit_ldloc (mb, bounds);
9944 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9945 mono_mb_emit_byte (mb, CEE_ADD);
9946 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9947 mono_mb_emit_byte (mb, CEE_SUB);
9948 mono_mb_emit_stloc (mb, ind);
9949 /* if (ind >= bounds [0].length) goto exeception; */
9950 mono_mb_emit_ldloc (mb, ind);
9951 mono_mb_emit_ldloc (mb, bounds);
9952 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9953 mono_mb_emit_byte (mb, CEE_ADD);
9954 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9955 /* note that we use unsigned comparison */
9956 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9958 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9959 * We could also decide to ignore the passed elem_size and get it
9960 * from the array object, to reduce the number of methods we generate:
9961 * the additional cost is 3 memory loads and a non-immediate mul.
9963 for (i = 1; i < rank; ++i) {
9964 /* realidx = idxi - bounds [i].lower_bound */
9965 mono_mb_emit_ldarg (mb, 1 + i);
9966 mono_mb_emit_ldloc (mb, bounds);
9967 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9968 mono_mb_emit_byte (mb, CEE_ADD);
9969 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9970 mono_mb_emit_byte (mb, CEE_SUB);
9971 mono_mb_emit_stloc (mb, realidx);
9972 /* if (realidx >= bounds [i].length) goto exeception; */
9973 mono_mb_emit_ldloc (mb, realidx);
9974 mono_mb_emit_ldloc (mb, bounds);
9975 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9976 mono_mb_emit_byte (mb, CEE_ADD);
9977 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9978 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9979 /* ind = ind * bounds [i].length + realidx */
9980 mono_mb_emit_ldloc (mb, ind);
9981 mono_mb_emit_ldloc (mb, bounds);
9982 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9983 mono_mb_emit_byte (mb, CEE_ADD);
9984 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9985 mono_mb_emit_byte (mb, CEE_MUL);
9986 mono_mb_emit_ldloc (mb, realidx);
9987 mono_mb_emit_byte (mb, CEE_ADD);
9988 mono_mb_emit_stloc (mb, ind);
9991 /* return array->vector + ind * element_size */
9992 mono_mb_emit_ldarg (mb, 0);
9993 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9994 mono_mb_emit_ldloc (mb, ind);
9995 mono_mb_emit_icon (mb, elem_size);
9996 mono_mb_emit_byte (mb, CEE_MUL);
9997 mono_mb_emit_byte (mb, CEE_ADD);
9998 mono_mb_emit_byte (mb, CEE_RET);
10000 /* patch the branches to get here and throw */
10001 for (i = 1; i < rank; ++i) {
10002 mono_mb_patch_branch (mb, branch_positions [i]);
10004 mono_mb_patch_branch (mb, branch_pos);
10005 /* throw exception */
10006 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10008 g_free (branch_positions);
10009 ret = mono_mb_create_method (mb, sig, 4);
10012 /* cache the result */
10014 mono_marshal_lock ();
10015 for (i = 0; i < elem_addr_cache_next; ++i) {
10016 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10017 /* FIXME: free ret */
10018 ret = elem_addr_cache [i].method;
10024 if (elem_addr_cache_next >= elem_addr_cache_size) {
10025 int new_size = elem_addr_cache_size + 4;
10026 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10027 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10028 g_free (elem_addr_cache);
10029 elem_addr_cache = new_array;
10030 elem_addr_cache_size = new_size;
10032 elem_addr_cache [elem_addr_cache_next].rank = rank;
10033 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10034 elem_addr_cache [elem_addr_cache_next].method = ret;
10036 mono_marshal_unlock ();
10041 mono_marshal_get_write_barrier (void)
10043 static MonoMethod* ret = NULL;
10044 MonoMethodSignature *sig;
10045 MonoMethodBuilder *mb;
10051 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
10053 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10055 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
10056 sig->ret = &mono_defaults.void_class->byval_arg;
10057 sig->params [0] = &mono_defaults.object_class->this_arg;
10058 sig->params [1] = &mono_defaults.object_class->byval_arg;
10060 /* just the store right now: add an hook for the GC to use, maybe something
10061 * that can be used for stelemref as well
10062 * We need a write barrier variant to be used with struct copies as well, though
10063 * there are also other approaches possible, like writing a wrapper specific to
10064 * the struct or to the reference pattern in the struct...
10065 * Depending on the GC, we may want variants that take the object we store to
10066 * when it is available.
10068 mono_mb_emit_ldarg (mb, 0);
10069 mono_mb_emit_ldarg (mb, 1);
10070 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
10071 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
10073 mono_mb_emit_byte (mb, CEE_RET);
10075 ret = mono_mb_create_method (mb, sig, max_stack);
10081 mono_marshal_alloc (gulong size)
10085 #ifdef PLATFORM_WIN32
10086 res = CoTaskMemAlloc (size);
10088 res = g_try_malloc ((gulong)size);
10090 mono_gc_out_of_memory ((gulong)size);
10096 mono_marshal_free (gpointer ptr)
10098 #ifdef PLATFORM_WIN32
10099 CoTaskMemFree (ptr);
10106 mono_marshal_free_array (gpointer *ptr, int size)
10113 for (i = 0; i < size; i++)
10119 mono_marshal_string_to_utf16 (MonoString *s)
10121 return s ? mono_string_chars (s) : NULL;
10125 mono_marshal_string_to_utf16_copy (MonoString *s)
10130 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10131 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10132 res [mono_string_length (s)] = 0;
10138 * mono_marshal_set_last_error:
10140 * This function is invoked to set the last error value from a P/Invoke call
10141 * which has SetLastError set.
10144 mono_marshal_set_last_error (void)
10147 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10149 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10154 mono_marshal_set_last_error_windows (int error)
10157 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10162 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10163 gpointer dest, gint32 length)
10168 MONO_ARCH_SAVE_REGS;
10170 MONO_CHECK_ARG_NULL (src);
10171 MONO_CHECK_ARG_NULL (dest);
10173 if (src->obj.vtable->klass->rank != 1)
10174 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10175 if (start_index < 0)
10176 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10178 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10179 if (start_index + length > mono_array_length (src))
10180 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10182 element_size = mono_array_element_size (src->obj.vtable->klass);
10184 /* no references should be involved */
10185 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10187 memcpy (dest, source_addr, length * element_size);
10191 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10192 MonoArray *dest, gint32 length)
10197 MONO_ARCH_SAVE_REGS;
10199 MONO_CHECK_ARG_NULL (src);
10200 MONO_CHECK_ARG_NULL (dest);
10202 if (dest->obj.vtable->klass->rank != 1)
10203 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10204 if (start_index < 0)
10205 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10207 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10208 if (start_index + length > mono_array_length (dest))
10209 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10211 element_size = mono_array_element_size (dest->obj.vtable->klass);
10213 /* no references should be involved */
10214 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10216 memcpy (dest_addr, src, length * element_size);
10219 #if NO_UNALIGNED_ACCESS
10220 #define RETURN_UNALIGNED(type, addr) \
10223 memcpy(&val, p + offset, sizeof(val)); \
10226 #define WRITE_UNALIGNED(type, addr, val) \
10227 memcpy(addr, &val, sizeof(type))
10229 #define RETURN_UNALIGNED(type, addr) \
10230 return *(type*)(p + offset);
10231 #define WRITE_UNALIGNED(type, addr, val) \
10232 (*(type *)(addr) = (val))
10236 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10240 MONO_ARCH_SAVE_REGS;
10242 RETURN_UNALIGNED(gpointer, p + offset);
10246 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10250 MONO_ARCH_SAVE_REGS;
10252 return *(unsigned char*)(p + offset);
10256 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10260 MONO_ARCH_SAVE_REGS;
10262 RETURN_UNALIGNED(gint16, p + offset);
10266 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10270 MONO_ARCH_SAVE_REGS;
10272 RETURN_UNALIGNED(gint32, p + offset);
10276 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10280 MONO_ARCH_SAVE_REGS;
10282 RETURN_UNALIGNED(gint64, p + offset);
10286 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10290 MONO_ARCH_SAVE_REGS;
10292 *(unsigned char*)(p + offset) = val;
10296 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10300 MONO_ARCH_SAVE_REGS;
10302 WRITE_UNALIGNED(gpointer, p + offset, val);
10306 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10310 MONO_ARCH_SAVE_REGS;
10312 WRITE_UNALIGNED(gint16, p + offset, val);
10316 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10320 MONO_ARCH_SAVE_REGS;
10322 WRITE_UNALIGNED(gint32, p + offset, val);
10326 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10330 MONO_ARCH_SAVE_REGS;
10332 WRITE_UNALIGNED(gint64, p + offset, val);
10336 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10338 MONO_ARCH_SAVE_REGS;
10343 return mono_string_new (mono_domain_get (), ptr);
10347 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10349 MONO_ARCH_SAVE_REGS;
10352 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10353 g_assert_not_reached ();
10356 return mono_string_new_len (mono_domain_get (), ptr, len);
10361 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10363 MonoDomain *domain = mono_domain_get ();
10367 MONO_ARCH_SAVE_REGS;
10375 return mono_string_new_utf16 (domain, ptr, len);
10379 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10381 MonoDomain *domain = mono_domain_get ();
10383 MONO_ARCH_SAVE_REGS;
10386 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10387 g_assert_not_reached ();
10390 return mono_string_new_utf16 (domain, ptr, len);
10395 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10397 MONO_ARCH_SAVE_REGS;
10399 return mono_string_from_bstr(ptr);
10403 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10405 MONO_ARCH_SAVE_REGS;
10407 return mono_string_to_bstr(ptr);
10412 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10413 int (STDCALL *AddRef)(gpointer pUnk);
10414 int (STDCALL *Release)(gpointer pUnk);
10418 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10420 MONO_ARCH_SAVE_REGS;
10422 mono_free_bstr (ptr);
10426 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10429 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10433 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10436 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10440 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10443 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10447 cominterop_get_idispatch_for_object (MonoObject* object)
10452 if (cominterop_object_is_rcw (object)) {
10453 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10454 mono_defaults.idispatch_class, TRUE);
10457 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10462 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10467 if (cominterop_object_is_rcw (object)) {
10468 MonoClass *klass = NULL;
10469 MonoRealProxy* real_proxy = NULL;
10472 klass = mono_object_class (object);
10473 if (klass != mono_defaults.transparent_proxy_class) {
10474 g_assert_not_reached ();
10478 real_proxy = ((MonoTransparentProxy*)object)->rp;
10480 g_assert_not_reached ();
10484 klass = mono_object_class (real_proxy);
10485 if (klass != mono_defaults.com_interop_proxy_class) {
10486 g_assert_not_reached ();
10490 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10491 g_assert_not_reached ();
10495 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10498 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10503 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10505 MonoObject* object = NULL;
10510 /* see if it is a CCW */
10511 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10517 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10519 return cominterop_get_idispatch_for_object (object);
10523 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10525 MonoClass* klass = NULL;
10528 g_assert (type->type);
10529 klass = mono_type_get_class (type->type);
10531 itf = cominterop_get_ccw (object, klass);
10538 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10540 return (MonoBoolean)cominterop_object_is_rcw (object);
10544 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10546 MonoComInteropProxy* proxy = NULL;
10547 gint32 ref_count = 0;
10550 g_assert (cominterop_object_is_rcw (object));
10552 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10555 ref_count = InterlockedDecrement (&proxy->ref_count);
10556 g_assert (ref_count >= 0);
10558 if (ref_count == 0)
10559 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10565 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10567 MONO_ARCH_SAVE_REGS;
10569 return cominterop_get_com_slot_for_method (m->method);
10573 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10575 MONO_ARCH_SAVE_REGS;
10577 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10581 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10587 MONO_ARCH_SAVE_REGS;
10589 MONO_CHECK_ARG_NULL (rtype);
10591 type = rtype->type;
10592 klass = mono_class_from_mono_type (type);
10593 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10595 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10597 MonoException *exc;
10599 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10600 exc = mono_get_exception_argument ("t", msg);
10602 mono_raise_exception (exc);
10606 return mono_class_native_size (klass, NULL);
10610 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10612 MonoMethod *method;
10615 MONO_ARCH_SAVE_REGS;
10617 MONO_CHECK_ARG_NULL (obj);
10618 MONO_CHECK_ARG_NULL (dst);
10620 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10624 pa [2] = &delete_old;
10626 mono_runtime_invoke (method, NULL, pa, NULL);
10630 ptr_to_structure (gpointer src, MonoObject *dst)
10632 MonoMethod *method;
10635 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10640 mono_runtime_invoke (method, NULL, pa, NULL);
10644 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10648 MONO_ARCH_SAVE_REGS;
10650 MONO_CHECK_ARG_NULL (src);
10651 MONO_CHECK_ARG_NULL (dst);
10653 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10655 if (t->type == MONO_TYPE_VALUETYPE) {
10656 MonoException *exc;
10659 tmp = g_strdup_printf ("Destination is a boxed value type.");
10660 exc = mono_get_exception_argument ("dst", tmp);
10663 mono_raise_exception (exc);
10667 ptr_to_structure (src, dst);
10671 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10673 MonoDomain *domain = mono_domain_get ();
10676 MONO_ARCH_SAVE_REGS;
10678 MONO_CHECK_ARG_NULL (src);
10679 MONO_CHECK_ARG_NULL (type);
10681 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10683 ptr_to_structure (src, res);
10689 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10691 MonoMarshalType *info;
10694 int match_index = -1;
10696 MONO_ARCH_SAVE_REGS;
10698 MONO_CHECK_ARG_NULL (type);
10699 MONO_CHECK_ARG_NULL (field_name);
10701 fname = mono_string_to_utf8 (field_name);
10702 klass = mono_class_from_mono_type (type->type);
10704 while (klass && match_index == -1) {
10705 MonoClassField* field;
10707 gpointer iter = NULL;
10708 while ((field = mono_class_get_fields (klass, &iter))) {
10709 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10711 if (!strcmp (fname, field->name)) {
10718 if (match_index == -1)
10719 klass = klass->parent;
10724 if(match_index == -1) {
10725 MonoException* exc;
10728 /* Get back original class instance */
10729 klass = mono_class_from_mono_type (type->type);
10731 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10732 exc = mono_get_exception_argument ("fieldName", tmp);
10735 mono_raise_exception ((MonoException*)exc);
10738 info = mono_marshal_load_type_info (klass);
10739 return info->fields [match_index].offset;
10743 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10745 MONO_ARCH_SAVE_REGS;
10747 return mono_string_to_utf8 (string);
10751 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10753 MONO_ARCH_SAVE_REGS;
10755 if (string == NULL)
10758 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10759 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10760 res [mono_string_length (string)] = 0;
10766 mono_struct_delete_old (MonoClass *klass, char *ptr)
10768 MonoMarshalType *info;
10771 info = mono_marshal_load_type_info (klass);
10773 for (i = 0; i < info->num_fields; i++) {
10774 MonoMarshalNative ntype;
10775 MonoMarshalConv conv;
10776 MonoType *ftype = info->fields [i].field->type;
10779 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10782 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10783 klass->unicode, &conv);
10785 cpos = ptr + info->fields [i].offset;
10788 case MONO_MARSHAL_CONV_NONE:
10789 if (MONO_TYPE_ISSTRUCT (ftype)) {
10790 mono_struct_delete_old (ftype->data.klass, cpos);
10794 case MONO_MARSHAL_CONV_STR_LPWSTR:
10795 /* We assume this field points inside a MonoString */
10797 case MONO_MARSHAL_CONV_STR_LPTSTR:
10798 #ifdef PLATFORM_WIN32
10799 /* We assume this field points inside a MonoString
10803 case MONO_MARSHAL_CONV_STR_LPSTR:
10804 case MONO_MARSHAL_CONV_STR_BSTR:
10805 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10806 case MONO_MARSHAL_CONV_STR_TBSTR:
10807 mono_marshal_free (*(gpointer *)cpos);
10817 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10821 MONO_ARCH_SAVE_REGS;
10823 MONO_CHECK_ARG_NULL (src);
10824 MONO_CHECK_ARG_NULL (type);
10826 klass = mono_class_from_mono_type (type->type);
10828 mono_struct_delete_old (klass, (char *)src);
10832 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10836 MONO_ARCH_SAVE_REGS;
10838 if ((gulong)size == 0)
10839 /* This returns a valid pointer for size 0 on MS.NET */
10842 #ifdef PLATFORM_WIN32
10843 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10845 res = g_try_malloc ((gulong)size);
10848 mono_gc_out_of_memory ((gulong)size);
10854 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10859 mono_gc_out_of_memory ((gulong)size);
10863 #ifdef PLATFORM_WIN32
10864 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10866 res = g_try_realloc (ptr, (gulong)size);
10869 mono_gc_out_of_memory ((gulong)size);
10875 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10877 MONO_ARCH_SAVE_REGS;
10879 #ifdef PLATFORM_WIN32
10887 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10889 MONO_ARCH_SAVE_REGS;
10891 #ifdef PLATFORM_WIN32
10892 return CoTaskMemAlloc (size);
10894 return g_try_malloc ((gulong)size);
10899 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10901 MONO_ARCH_SAVE_REGS;
10903 #ifdef PLATFORM_WIN32
10904 CoTaskMemFree (ptr);
10911 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10913 MONO_ARCH_SAVE_REGS;
10915 #ifdef PLATFORM_WIN32
10916 return CoTaskMemRealloc (ptr, size);
10918 return g_try_realloc (ptr, (gulong)size);
10923 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10925 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10929 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10931 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10934 /* Only used for COM RCWs */
10936 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10939 MonoDomain *domain;
10942 MONO_ARCH_SAVE_REGS;
10944 domain = mono_object_domain (type);
10945 klass = mono_class_from_mono_type (type->type);
10947 /* call mono_object_new_alloc_specific instead of mono_object_new
10948 * because we want to actually create object. mono_object_new checks
10949 * to see if type is import and creates transparent proxy. this method
10950 * is called by the corresponding real proxy to create the real RCW.
10951 * Constructor does not need to be called. Will be called later.
10953 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10958 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10960 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10965 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10968 if (obj->itf_hash) {
10969 guint32 gchandle = 0;
10970 mono_cominterop_lock ();
10971 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10973 mono_gchandle_free (gchandle);
10974 g_hash_table_remove (rcw_hash, obj->iunknown);
10977 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10978 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10979 obj->itf_hash = obj->iunknown = NULL;
10980 mono_cominterop_unlock ();
10985 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
10987 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
10991 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
10993 guint32 gchandle = 0;
10995 mono_cominterop_lock ();
10996 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
10997 mono_cominterop_unlock ();
11000 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
11002 mono_cominterop_lock ();
11003 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
11004 mono_cominterop_unlock ();
11007 MonoComInteropProxy*
11008 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
11010 MonoComInteropProxy* proxy = NULL;
11011 guint32 gchandle = 0;
11013 mono_cominterop_lock ();
11015 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
11016 mono_cominterop_unlock ();
11018 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11019 /* proxy is null means we need to free up old RCW */
11021 mono_gchandle_free (gchandle);
11022 g_hash_table_remove (rcw_hash, pUnk);
11029 * mono_marshal_is_loading_type_info:
11031 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11035 mono_marshal_is_loading_type_info (MonoClass *klass)
11037 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
11039 return g_slist_find (loads_list, klass) != NULL;
11043 * mono_marshal_load_type_info:
11045 * Initialize klass->marshal_info using information from metadata. This function can
11046 * recursively call itself, and the caller is responsible to avoid that by calling
11047 * mono_marshal_is_loading_type_info () beforehand.
11049 * LOCKING: Acquires the loader lock.
11052 mono_marshal_load_type_info (MonoClass* klass)
11055 guint32 native_size = 0, min_align = 1;
11056 MonoMarshalType *info;
11057 MonoClassField* field;
11060 GSList *loads_list;
11062 g_assert (klass != NULL);
11064 if (klass->marshal_info)
11065 return klass->marshal_info;
11067 if (!klass->inited)
11068 mono_class_init (klass);
11070 mono_loader_lock ();
11072 if (klass->marshal_info) {
11073 mono_loader_unlock ();
11074 return klass->marshal_info;
11078 * This function can recursively call itself, so we keep the list of classes which are
11079 * under initialization in a TLS list.
11081 g_assert (!mono_marshal_is_loading_type_info (klass));
11082 loads_list = TlsGetValue (load_type_info_tls_id);
11083 loads_list = g_slist_prepend (loads_list, klass);
11084 TlsSetValue (load_type_info_tls_id, loads_list);
11087 while ((field = mono_class_get_fields (klass, &iter))) {
11088 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11090 if (mono_field_is_deleted (field))
11095 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11097 /* The mempool is protected by the loader lock */
11098 info = mono_mempool_alloc0 (klass->image->mempool, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11099 info->num_fields = count;
11101 /* Try to find a size for this type in metadata */
11102 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11104 if (klass->parent) {
11105 int parent_size = mono_class_native_size (klass->parent, NULL);
11107 /* Add parent size to real size */
11108 native_size += parent_size;
11109 info->native_size = parent_size;
11114 while ((field = mono_class_get_fields (klass, &iter))) {
11118 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11121 if (mono_field_is_deleted (field))
11123 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11124 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11125 NULL, NULL, &info->fields [j].mspec);
11127 info->fields [j].field = field;
11129 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11130 (strcmp (field->name, "$PRIVATE$") == 0)) {
11131 /* This field is a hack inserted by MCS to empty structures */
11136 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11137 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11138 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11139 &align, TRUE, klass->unicode);
11140 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11141 min_align = MAX (align, min_align);
11142 info->fields [j].offset = info->native_size;
11143 info->fields [j].offset += align - 1;
11144 info->fields [j].offset &= ~(align - 1);
11145 info->native_size = info->fields [j].offset + size;
11147 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11148 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11149 &align, TRUE, klass->unicode);
11150 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11151 min_align = MAX (align, min_align);
11152 info->fields [j].offset = field->offset - sizeof (MonoObject);
11153 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11159 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11160 info->native_size = MAX (native_size, info->native_size);
11163 if (info->native_size & (min_align - 1)) {
11164 info->native_size += min_align - 1;
11165 info->native_size &= ~(min_align - 1);
11168 /* Update the class's blittable info, if the layouts don't match */
11169 if (info->native_size != mono_class_value_size (klass, NULL))
11170 klass->blittable = FALSE;
11172 /* If this is an array type, ensure that we have element info */
11173 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11174 mono_marshal_load_type_info (klass->element_class);
11177 loads_list = TlsGetValue (load_type_info_tls_id);
11178 loads_list = g_slist_remove (loads_list, klass);
11179 TlsSetValue (load_type_info_tls_id, loads_list);
11181 klass->marshal_info = info;
11183 mono_loader_unlock ();
11185 return klass->marshal_info;
11189 * mono_class_native_size:
11192 * Returns: the native size of an object instance (when marshaled
11193 * to unmanaged code)
11196 mono_class_native_size (MonoClass *klass, guint32 *align)
11198 if (!klass->marshal_info) {
11199 if (mono_marshal_is_loading_type_info (klass))
11202 mono_marshal_load_type_info (klass);
11206 *align = klass->min_align;
11208 return klass->marshal_info->native_size;
11212 * mono_type_native_stack_size:
11213 * @t: the type to return the size it uses on the stack
11215 * Returns: the number of bytes required to hold an instance of this
11216 * type on the native stack
11219 mono_type_native_stack_size (MonoType *t, guint32 *align)
11223 g_assert (t != NULL);
11234 case MONO_TYPE_BOOLEAN:
11235 case MONO_TYPE_CHAR:
11244 case MONO_TYPE_STRING:
11245 case MONO_TYPE_OBJECT:
11246 case MONO_TYPE_CLASS:
11247 case MONO_TYPE_SZARRAY:
11248 case MONO_TYPE_PTR:
11249 case MONO_TYPE_FNPTR:
11250 case MONO_TYPE_ARRAY:
11251 case MONO_TYPE_TYPEDBYREF:
11262 case MONO_TYPE_VALUETYPE: {
11265 if (t->data.klass->enumtype)
11266 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
11268 size = mono_class_native_size (t->data.klass, align);
11269 *align = *align + 3;
11279 g_error ("type 0x%02x unknown", t->type);
11284 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11285 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11286 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11287 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11290 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11291 gboolean as_field, gboolean unicode)
11293 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11296 switch (native_type) {
11297 case MONO_NATIVE_BOOLEAN:
11300 case MONO_NATIVE_I1:
11301 case MONO_NATIVE_U1:
11304 case MONO_NATIVE_I2:
11305 case MONO_NATIVE_U2:
11306 case MONO_NATIVE_VARIANTBOOL:
11309 case MONO_NATIVE_I4:
11310 case MONO_NATIVE_U4:
11311 case MONO_NATIVE_ERROR:
11314 case MONO_NATIVE_I8:
11315 case MONO_NATIVE_U8:
11316 *align = ALIGNMENT(guint64);
11318 case MONO_NATIVE_R4:
11321 case MONO_NATIVE_R8:
11322 *align = ALIGNMENT(double);
11324 case MONO_NATIVE_INT:
11325 case MONO_NATIVE_UINT:
11326 case MONO_NATIVE_LPSTR:
11327 case MONO_NATIVE_LPWSTR:
11328 case MONO_NATIVE_LPTSTR:
11329 case MONO_NATIVE_BSTR:
11330 case MONO_NATIVE_ANSIBSTR:
11331 case MONO_NATIVE_TBSTR:
11332 case MONO_NATIVE_LPARRAY:
11333 case MONO_NATIVE_SAFEARRAY:
11334 case MONO_NATIVE_IUNKNOWN:
11335 case MONO_NATIVE_IDISPATCH:
11336 case MONO_NATIVE_INTERFACE:
11337 case MONO_NATIVE_ASANY:
11338 case MONO_NATIVE_FUNC:
11339 case MONO_NATIVE_LPSTRUCT:
11340 *align = ALIGNMENT(gpointer);
11341 return sizeof (gpointer);
11342 case MONO_NATIVE_STRUCT:
11343 klass = mono_class_from_mono_type (type);
11344 if (klass == mono_defaults.object_class &&
11345 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11349 return mono_class_native_size (klass, align);
11350 case MONO_NATIVE_BYVALTSTR: {
11351 int esize = unicode ? 2: 1;
11354 return mspec->data.array_data.num_elem * esize;
11356 case MONO_NATIVE_BYVALARRAY: {
11357 // FIXME: Have to consider ArraySubType
11359 klass = mono_class_from_mono_type (type);
11360 if (klass->element_class == mono_defaults.char_class) {
11361 esize = unicode ? 2 : 1;
11364 esize = mono_class_native_size (klass->element_class, align);
11367 return mspec->data.array_data.num_elem * esize;
11369 case MONO_NATIVE_CUSTOM:
11370 *align = sizeof (gpointer);
11371 return sizeof (gpointer);
11373 case MONO_NATIVE_CURRENCY:
11374 case MONO_NATIVE_VBBYREFSTR:
11376 g_error ("native type %02x not implemented", native_type);
11379 g_assert_not_reached ();
11384 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11392 t = &o->vtable->klass->byval_arg;
11396 case MONO_TYPE_PTR:
11399 case MONO_TYPE_BOOLEAN:
11402 case MONO_TYPE_CHAR:
11407 return mono_object_unbox (o);
11409 case MONO_TYPE_STRING:
11410 switch (string_encoding) {
11411 case MONO_NATIVE_LPWSTR:
11412 return mono_string_to_utf16 ((MonoString*)o);
11414 case MONO_NATIVE_LPSTR:
11415 return mono_string_to_lpstr ((MonoString*)o);
11418 g_warning ("marshaling conversion %d not implemented", string_encoding);
11419 g_assert_not_reached ();
11422 case MONO_TYPE_CLASS:
11423 case MONO_TYPE_VALUETYPE: {
11424 MonoMethod *method;
11427 MonoBoolean delete_old = FALSE;
11429 klass = t->data.klass;
11431 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11434 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11435 klass->blittable || klass->enumtype))
11436 return mono_object_unbox (o);
11438 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11440 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11441 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11445 pa [2] = &delete_old;
11447 mono_runtime_invoke (method, NULL, pa, NULL);
11454 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11460 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11468 t = &o->vtable->klass->byval_arg;
11470 case MONO_TYPE_STRING:
11471 switch (string_encoding) {
11472 case MONO_NATIVE_LPWSTR:
11473 case MONO_NATIVE_LPSTR:
11474 mono_marshal_free (ptr);
11477 g_warning ("marshaling conversion %d not implemented", string_encoding);
11478 g_assert_not_reached ();
11481 case MONO_TYPE_CLASS:
11482 case MONO_TYPE_VALUETYPE: {
11483 klass = t->data.klass;
11485 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11486 klass->blittable || klass->enumtype))
11489 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11490 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11496 mono_runtime_invoke (method, NULL, pa, NULL);
11499 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11500 mono_struct_delete_old (klass, ptr);
11503 mono_marshal_free (ptr);
11512 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11514 MonoMethodSignature *sig, *csig;
11515 MonoMethodBuilder *mb;
11519 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11520 mb->method->slot = -1;
11522 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11523 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11525 sig = mono_method_signature (method);
11526 csig = signature_dup (method->klass->image, sig);
11527 csig->generic_param_count = 0;
11529 mono_mb_emit_ldarg (mb, 0);
11530 for (i = 0; i < csig->param_count; i++)
11531 mono_mb_emit_ldarg (mb, i + 1);
11532 mono_mb_emit_managed_call (mb, method, NULL);
11533 mono_mb_emit_byte (mb, CEE_RET);
11535 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11537 /* We can corlib internal methods */
11538 res->skip_visibility = TRUE;
11546 * The mono_win32_compat_* functions are implementations of inline
11547 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11548 * although not exported by kernel32.
11550 * We map the appropiate kernel32 entries to these functions using
11551 * dllmaps declared in the global etc/mono/config.
11555 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11557 if (!dest || !source)
11560 memcpy (dest, source, length);
11564 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11566 memset (dest, fill, length);
11570 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11572 if (!dest || !source)
11575 memmove (dest, source, length);
11579 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11581 memset (dest, 0, length);
11584 /* Put COM Interop related stuff here */
11587 * cominterop_get_ccw_object:
11588 * @ccw_entry: a pointer to the CCWEntry
11589 * @verify: verify ccw_entry is in fact a ccw
11591 * Returns: the corresponding object for the CCW
11594 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11596 MonoCCW *ccw = NULL;
11598 /* no CCW's exist yet */
11599 if (!ccw_interface_hash)
11603 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11606 ccw = ccw_entry->ccw;
11610 return mono_gchandle_get_target (ccw->gc_handle);
11616 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11618 MonoMethodSignature *sig, *csig;
11619 sig = mono_method_signature (method);
11620 /* we copy the signature, so that we can modify it */
11621 /* FIXME: which to use? */
11622 csig = signature_dup (method->klass->image, sig);
11623 /* csig = mono_metadata_signature_dup (sig); */
11625 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11626 #ifdef PLATFORM_WIN32
11627 csig->call_convention = MONO_CALL_STDCALL;
11629 csig->call_convention = MONO_CALL_C;
11634 m->image = method->klass->image;
11642 * cominterop_get_ccw:
11643 * @object: a pointer to the object
11644 * @itf: interface type needed
11646 * Returns: a value indicating if the object is a
11647 * Runtime Callable Wrapper (RCW) for a COM object
11650 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11653 MonoCCW *ccw = NULL;
11654 MonoCCWInterface* ccw_entry = NULL;
11655 gpointer *vtable = NULL;
11656 static gpointer iunknown[3] = {NULL, NULL, NULL};
11657 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11658 MonoClass* iface = NULL;
11659 MonoClass* klass = NULL;
11660 EmitMarshalContext m;
11661 int start_slot = 3;
11662 int method_count = 0;
11663 GList *ccw_list, *ccw_list_item;
11664 MonoCustomAttrInfo *cinfo = NULL;
11669 klass = mono_object_get_class (object);
11672 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11673 if (!ccw_interface_hash)
11674 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11676 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11678 ccw_list_item = ccw_list;
11679 while (ccw_list_item) {
11680 MonoCCW* ccw_iter = ccw_list_item->data;
11681 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11685 ccw_list_item = g_list_next(ccw_list_item);
11688 if (!iunknown [0]) {
11689 iunknown [0] = cominterop_ccw_queryinterface;
11690 iunknown [1] = cominterop_ccw_addref;
11691 iunknown [2] = cominterop_ccw_release;
11694 if (!idispatch [0]) {
11695 idispatch [0] = cominterop_ccw_get_type_info_count;
11696 idispatch [1] = cominterop_ccw_get_type_info;
11697 idispatch [2] = cominterop_ccw_get_ids_of_names;
11698 idispatch [3] = cominterop_ccw_invoke;
11702 ccw = g_new0 (MonoCCW, 1);
11703 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11704 ccw->ref_count = 0;
11705 /* just alloc a weak handle until we are addref'd*/
11706 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11709 ccw_list = g_list_alloc ();
11710 ccw_list->data = ccw;
11713 ccw_list = g_list_append (ccw_list, ccw);
11714 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11715 /* register for finalization to clean up ccw */
11716 mono_object_register_finalizer (object);
11719 cinfo = mono_custom_attrs_from_class (itf);
11721 static MonoClass* coclass_attribute = NULL;
11722 if (!coclass_attribute)
11723 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11724 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11725 g_assert(itf->interface_count && itf->interfaces[0]);
11726 itf = itf->interfaces[0];
11728 if (!cinfo->cached)
11729 mono_custom_attrs_free (cinfo);
11733 if (iface == mono_defaults.iunknown_class) {
11736 else if (iface == mono_defaults.idispatch_class) {
11740 method_count += iface->method.count;
11741 start_slot = cominterop_get_com_slot_begin (iface);
11745 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11748 int vtable_index = method_count-1+start_slot;
11749 mono_loader_lock ();
11750 vtable = mono_mempool_alloc0 (klass->image->mempool, sizeof (gpointer)*(method_count+start_slot));
11751 mono_loader_unlock ();
11752 memcpy (vtable, iunknown, sizeof (iunknown));
11753 if (start_slot == 7)
11754 memcpy (vtable+3, idispatch, sizeof (idispatch));
11757 for (i = iface->method.count-1; i >= 0;i--) {
11758 int param_index = 0;
11759 MonoMethodBuilder *mb;
11760 MonoMarshalSpec ** mspecs;
11761 MonoMethod *wrapper_method, *adjust_method;
11762 MonoMethod *method = iface->methods [i];
11763 MonoMethodSignature* sig_adjusted;
11764 MonoMethodSignature* sig = mono_method_signature (method);
11765 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11768 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11769 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11770 sig_adjusted = mono_method_signature (adjust_method);
11772 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11773 mono_method_get_marshal_info (method, mspecs);
11776 /* move managed args up one */
11777 for (param_index = sig->param_count; param_index >= 1; param_index--)
11778 mspecs [param_index+1] = mspecs [param_index];
11780 /* first arg is IntPtr for interface */
11783 /* move return spec to last param */
11784 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11785 mspecs [sig_adjusted->param_count] = mspecs [0];
11789 cominterop_setup_marshal_context (&m, adjust_method);
11791 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11792 mono_loader_lock ();
11793 mono_marshal_lock ();
11794 wrapper_method = mono_mb_create_method (mb, sig_adjusted, sig_adjusted->param_count + 16);
11795 mono_marshal_unlock ();
11796 mono_loader_unlock ();
11798 /* skip visiblity since we call internal methods */
11799 wrapper_method->skip_visibility = TRUE;
11801 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11804 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11805 if (mspecs [param_index])
11806 mono_metadata_free_marshal_spec (mspecs [param_index]);
11810 ccw_entry = g_new0 (MonoCCWInterface, 1);
11811 ccw_entry->ccw = ccw;
11812 ccw_entry->vtable = vtable;
11813 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11814 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11821 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11829 * mono_marshal_free_ccw:
11830 * @object: the mono object
11832 * Returns: whether the object had a CCW
11835 mono_marshal_free_ccw (MonoObject* object)
11837 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11838 /* no ccw's were created */
11839 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11842 /* need to cache orig list address to remove from hash_table if empty */
11843 mono_cominterop_lock ();
11844 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11845 mono_cominterop_unlock ();
11850 ccw_list_item = ccw_list;
11851 while (ccw_list_item) {
11852 MonoCCW* ccw_iter = ccw_list_item->data;
11853 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11855 /* Looks like the GC NULLs the weakref handle target before running the
11856 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11857 if (!handle_target || handle_target == object) {
11858 /* remove all interfaces */
11859 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11860 g_hash_table_destroy (ccw_iter->vtable_hash);
11862 /* get next before we delete */
11863 ccw_list_item = g_list_next(ccw_list_item);
11865 /* remove ccw from list */
11866 ccw_list = g_list_remove (ccw_list, ccw_iter);
11870 ccw_list_item = g_list_next(ccw_list_item);
11873 /* if list is empty remove original address from hash */
11874 if (g_list_length (ccw_list) == 0)
11875 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11882 * cominterop_get_native_wrapper_adjusted:
11883 * @method: managed COM Interop method
11885 * Returns: the generated method to call with signature matching
11886 * the unmanaged COM Method signature
11888 static MonoMethod *
11889 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11891 static MonoMethod *get_hr_for_exception = NULL;
11892 MonoMethod *res = NULL;
11893 MonoMethodBuilder *mb;
11894 MonoMarshalSpec **mspecs;
11895 MonoMethodSignature *sig, *sig_native;
11896 MonoExceptionClause *main_clause = NULL;
11897 MonoMethodHeader *header;
11901 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11903 if (!get_hr_for_exception)
11904 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11906 sig = mono_method_signature (method);
11908 /* create unmanaged wrapper */
11909 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11911 sig_native = cominterop_method_signature (method);
11913 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11915 mono_method_get_marshal_info (method, mspecs);
11917 /* move managed args up one */
11918 for (i = sig->param_count; i >= 1; i--)
11919 mspecs [i+1] = mspecs [i];
11921 /* first arg is IntPtr for interface */
11924 /* move return spec to last param */
11925 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11926 mspecs [sig_native->param_count] = mspecs [0];
11930 if (!preserve_sig) {
11931 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11934 main_clause = g_new0 (MonoExceptionClause, 1);
11935 main_clause->try_offset = mb->pos;
11938 /* load last param to store result if not preserve_sig and not void */
11939 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11940 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11942 /* the CCW -> object conversion */
11943 mono_mb_emit_ldarg (mb, 0);
11944 mono_mb_emit_icon (mb, FALSE);
11945 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11947 for (i = 0; i < sig->param_count; i++)
11948 mono_mb_emit_ldarg (mb, i+1);
11950 mono_mb_emit_managed_call (mb, method, NULL);
11952 if (!preserve_sig) {
11953 /* store result if not preserve_sig and we have one */
11954 if (!MONO_TYPE_IS_VOID (sig->ret))
11955 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11957 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11959 /* Main exception catch */
11960 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11961 main_clause->try_len = mb->pos - main_clause->try_offset;
11962 main_clause->data.catch_class = mono_defaults.object_class;
11965 main_clause->handler_offset = mb->pos;
11966 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11967 mono_mb_emit_stloc (mb, hr);
11968 mono_mb_emit_branch (mb, CEE_LEAVE);
11969 main_clause->handler_len = mb->pos - main_clause->handler_offset;
11972 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
11974 mono_mb_emit_ldloc (mb, hr);
11977 mono_mb_emit_byte (mb, CEE_RET);
11979 mono_loader_lock ();
11980 mono_marshal_lock ();
11981 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
11982 mono_marshal_unlock ();
11983 mono_loader_unlock ();
11987 for (i = sig_native->param_count; i >= 0; i--)
11989 mono_metadata_free_marshal_spec (mspecs [i]);
11992 if (!preserve_sig) {
11993 header = ((MonoMethodNormal *)res)->header;
11994 header->num_clauses = 1;
11995 header->clauses = main_clause;
12002 * cominterop_mono_string_to_guid:
12004 * Converts the standard string representation of a GUID
12005 * to a 16 byte Microsoft GUID.
12008 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
12009 gunichar2 * chars = mono_string_chars (string);
12011 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
12013 for (i = 0; i < sizeof(indexes); i++)
12014 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
12018 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
12020 guint8 klass_guid [16];
12021 if (cominterop_class_guid (klass, klass_guid))
12022 return !memcmp (guid, klass_guid, sizeof (klass_guid));
12027 cominterop_ccw_addref (MonoCCWInterface* ccwe)
12029 gint32 ref_count = 0;
12030 MonoCCW* ccw = ccwe->ccw;
12032 g_assert (ccw->gc_handle);
12033 g_assert (ccw->ref_count >= 0);
12034 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
12035 if (ref_count == 1) {
12036 guint32 oldhandle = ccw->gc_handle;
12037 g_assert (oldhandle);
12038 /* since we now have a ref count, alloc a strong handle*/
12039 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12040 mono_gchandle_free (oldhandle);
12046 cominterop_ccw_release (MonoCCWInterface* ccwe)
12048 gint32 ref_count = 0;
12049 MonoCCW* ccw = ccwe->ccw;
12051 g_assert (ccw->ref_count > 0);
12052 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12053 if (ref_count == 0) {
12054 /* allow gc of object */
12055 guint32 oldhandle = ccw->gc_handle;
12056 g_assert (oldhandle);
12057 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12058 mono_gchandle_free (oldhandle);
12063 #define MONO_S_OK 0x00000000L
12064 #define MONO_E_NOINTERFACE 0x80004002L
12065 #define MONO_E_NOTIMPL 0x80004001L
12068 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12071 MonoClass *itf = NULL;
12073 MonoCCW* ccw = ccwe->ccw;
12074 MonoClass* klass = NULL;
12075 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12078 klass = mono_object_class (object);
12083 /* handle IUnknown special */
12084 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12085 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12086 /* remember to addref on QI */
12087 cominterop_ccw_addref (*ppv);
12091 /* handle IDispatch special */
12092 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12093 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12094 /* remember to addref on QI */
12095 cominterop_ccw_addref (*ppv);
12099 ifaces = mono_class_get_implemented_interfaces (klass);
12101 for (i = 0; i < ifaces->len; ++i) {
12102 MonoClass *ic = NULL;
12103 ic = g_ptr_array_index (ifaces, i);
12104 if (cominterop_class_guid_equal (riid, ic)) {
12109 g_ptr_array_free (ifaces, TRUE);
12112 *ppv = cominterop_get_ccw (object, itf);
12113 /* remember to addref on QI */
12114 cominterop_ccw_addref (*ppv);
12118 return MONO_E_NOINTERFACE;
12122 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12124 return MONO_E_NOTIMPL;
12128 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12130 return MONO_E_NOTIMPL;
12134 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12135 gunichar2** rgszNames, guint32 cNames,
12136 guint32 lcid, gint32 *rgDispId)
12138 return MONO_E_NOTIMPL;
12142 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12143 gpointer riid, guint32 lcid,
12144 guint16 wFlags, gpointer pDispParams,
12145 gpointer pVarResult, gpointer pExcepInfo,
12148 return MONO_E_NOTIMPL;