2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
15 #include "metadata/marshal.h"
16 #include "metadata/method-builder.h"
17 #include "metadata/tabledefs.h"
18 #include "metadata/exception.h"
19 #include "metadata/appdomain.h"
20 #include "mono/metadata/debug-helpers.h"
21 #include "mono/metadata/threadpool.h"
22 #include "mono/metadata/threads.h"
23 #include "mono/metadata/monitor.h"
24 #include "mono/metadata/metadata-internals.h"
25 #include "mono/metadata/domain-internals.h"
26 #include "mono/metadata/gc-internal.h"
27 #include "mono/metadata/threads-types.h"
28 #include "mono/metadata/string-icalls.h"
29 #include "mono/metadata/attrdefs.h"
30 #include "mono/metadata/gc-internal.h"
31 #include "mono/utils/mono-counters.h"
35 /* #define DEBUG_RUNTIME_CODE */
37 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
41 MONO_MARSHAL_NONE, /* No marshalling needed */
42 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
43 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
44 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
45 } MonoXDomainMarshalType;
52 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
55 #include "mono/cil/opcode.def"
60 struct _MonoRemotingMethods {
62 MonoMethod *invoke_with_check;
63 MonoMethod *xdomain_invoke;
64 MonoMethod *xdomain_dispatch;
67 typedef struct _MonoRemotingMethods MonoRemotingMethods;
70 * This mutex protects the various marshalling related caches in MonoImage
71 * and a few other data structures static to this file.
72 * Note that when this lock is held it is not possible to take other runtime
73 * locks like the loader lock.
75 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
76 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
77 static CRITICAL_SECTION marshal_mutex;
79 /* This mutex protects the various cominterop related caches in MonoImage */
80 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
81 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
82 static CRITICAL_SECTION cominterop_mutex;
84 static guint32 last_error_tls_id;
86 static guint32 load_type_info_tls_id;
89 delegate_hash_table_add (MonoDelegate *d);
92 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
95 mono_struct_delete_old (MonoClass *klass, char *ptr);
98 mono_marshal_string_to_utf16 (MonoString *s);
101 mono_marshal_string_to_utf16_copy (MonoString *s);
104 mono_string_to_lpstr (MonoString *string_obj);
107 mono_string_from_bstr (gpointer bstr);
110 mono_free_bstr (gpointer bstr);
112 static MonoStringBuilder *
113 mono_string_utf8_to_builder2 (char *text);
116 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
119 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
122 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
124 static MonoAsyncResult *
125 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
128 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_marshal_xdomain_copy_value (MonoObject *val);
134 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
137 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
140 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
143 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
145 static MonoReflectionType *
146 type_from_handle (MonoType *handle);
149 mono_marshal_set_last_error_windows (int error);
152 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions);
154 static void init_safe_handle (void);
156 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
157 static MonoMethod *sh_dangerous_add_ref;
158 static MonoMethod *sh_dangerous_release;
164 sh_dangerous_add_ref = mono_class_get_method_from_name (
165 mono_defaults.safehandle_class, "DangerousAddRef", 1);
166 sh_dangerous_release = mono_class_get_method_from_name (
167 mono_defaults.safehandle_class, "DangerousRelease", 0);
171 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
173 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
175 mono_register_jit_icall (func, name, sig, save);
178 static MonoMethodSignature*
179 signature_dup (MonoImage *image, MonoMethodSignature *sig)
181 MonoMethodSignature *res;
184 res = mono_metadata_signature_alloc (image, sig->param_count);
185 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
186 memcpy (res, sig, sigsize);
192 mono_signature_no_pinvoke (MonoMethod *method)
194 MonoMethodSignature *sig = mono_method_signature (method);
196 sig = signature_dup (method->klass->image, sig);
197 sig->pinvoke = FALSE;
203 /* Begin COM Interop related stuff until seperate file */
206 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
207 #ifdef PLATFORM_WIN32
208 #define STDCALL __stdcall
213 /* Upon creation of a CCW, only allocate a weak handle and set the
214 * reference count to 0. If the unmanaged client code decides to addref and
215 * hold onto the CCW, I then allocate a strong handle. Once the reference count
216 * goes back to 0, convert back to a weak handle.
221 GHashTable* vtable_hash;
222 #ifdef PLATFORM_WIN32
223 gpointer free_marshaler;
227 /* This type is the actual pointer passed to unmanaged code
228 * to represent a COM interface.
238 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
240 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
242 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
245 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
247 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
249 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
250 gunichar2** rgszNames, guint32 cNames,
251 guint32 lcid, gint32 *rgDispId);
253 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
254 gpointer riid, guint32 lcid,
255 guint16 wFlags, gpointer pDispParams,
256 gpointer pVarResult, gpointer pExcepInfo,
260 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
263 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
266 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
269 * cominterop_method_signature:
272 * Returns: the corresponding unmanaged method signature for a managed COM
275 static MonoMethodSignature*
276 cominterop_method_signature (MonoMethod* method)
278 MonoMethodSignature *res;
279 MonoImage *image = method->klass->image;
280 MonoMethodSignature *sig = mono_method_signature (method);
281 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
284 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
286 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
289 res = mono_metadata_signature_alloc (image, param_count);
290 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
291 memcpy (res, sig, sigsize);
293 // now move args forward one
294 for (i = sig->param_count-1; i >= 0; i--)
295 res->params[i+1] = sig->params[i];
297 // first arg is interface pointer
298 res->params[0] = &mono_defaults.int_class->byval_arg;
304 // last arg is return type
305 if (!MONO_TYPE_IS_VOID (sig->ret)) {
306 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
307 res->params[param_count-1]->byref = 1;
308 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
311 // return type is always int32 (HRESULT)
312 res->ret = &mono_defaults.int32_class->byval_arg;
316 res->pinvoke = FALSE;
322 res->param_count = param_count;
324 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
325 #ifdef PLATFORM_WIN32
326 res->call_convention = MONO_CALL_STDCALL;
328 res->call_convention = MONO_CALL_C;
335 * cominterop_get_function_pointer:
336 * @itf: a pointer to the COM interface
337 * @slot: the vtable slot of the method pointer to return
339 * Returns: the unmanaged vtable function pointer from the interface
342 cominterop_get_function_pointer (gpointer itf, int slot)
345 func = *((*(gpointer**)itf)+slot);
350 * cominterop_object_is_com_object:
351 * @obj: a pointer to the object
353 * Returns: a value indicating if the object is a
354 * Runtime Callable Wrapper (RCW) for a COM object
357 cominterop_object_is_rcw (MonoObject *obj)
359 MonoClass *klass = NULL;
360 MonoRealProxy* real_proxy = NULL;
363 klass = mono_object_class (obj);
364 if (klass != mono_defaults.transparent_proxy_class)
367 real_proxy = ((MonoTransparentProxy*)obj)->rp;
371 klass = mono_object_class (real_proxy);
372 return (klass && klass == mono_defaults.com_interop_proxy_class);
376 cominterop_get_com_slot_begin (MonoClass* klass)
378 static MonoClass *interface_type_attribute = NULL;
379 MonoCustomAttrInfo *cinfo = NULL;
380 MonoInterfaceTypeAttribute* itf_attr = NULL;
382 if (!interface_type_attribute)
383 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
384 cinfo = mono_custom_attrs_from_class (klass);
386 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
388 mono_custom_attrs_free (cinfo);
391 if (itf_attr && itf_attr->intType == 1)
392 return 3; /* 3 methods in IUnknown*/
394 return 7; /* 7 methods in IDispatch*/
398 * cominterop_get_method_interface:
399 * @method: method being called
401 * Returns: the MonoClass* representing the interface on which
402 * the method is defined.
405 cominterop_get_method_interface (MonoMethod* method)
407 MonoClass *ic = method->klass;
409 /* if method is on a class, we need to look up interface method exists on */
410 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
411 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
414 for (i = 0; i < ifaces->len; ++i) {
416 ic = g_ptr_array_index (ifaces, i);
417 offset = mono_class_interface_offset (method->klass, ic);
418 if (method->slot >= offset && method->slot < offset + ic->method.count)
422 g_ptr_array_free (ifaces, TRUE);
427 g_assert (MONO_CLASS_IS_INTERFACE (ic));
433 * cominterop_get_com_slot_for_method:
436 * Returns: the method's slot in the COM interface vtable
439 cominterop_get_com_slot_for_method (MonoMethod* method)
441 guint32 slot = method->slot;
442 MonoClass *ic = method->klass;
444 /* if method is on a class, we need to look up interface method exists on */
445 if (!MONO_CLASS_IS_INTERFACE(ic)) {
447 ic = cominterop_get_method_interface (method);
448 offset = mono_class_interface_offset (method->klass, ic);
449 g_assert(offset >= 0);
454 g_assert (MONO_CLASS_IS_INTERFACE (ic));
456 return slot + cominterop_get_com_slot_begin (ic);
461 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
464 cominterop_class_guid (MonoClass* klass, guint8* guid)
466 static MonoClass *GuidAttribute = NULL;
467 MonoCustomAttrInfo *cinfo;
469 /* Handle the GuidAttribute */
471 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
473 cinfo = mono_custom_attrs_from_class (klass);
475 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
480 mono_custom_attrs_free (cinfo);
482 cominterop_mono_string_to_guid (attr->guid, guid);
489 cominterop_com_visible (MonoClass* klass)
491 static MonoClass *ComVisibleAttribute = NULL;
492 MonoCustomAttrInfo *cinfo;
494 /* Handle the ComVisibleAttribute */
495 if (!ComVisibleAttribute)
496 ComVisibleAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ComVisibleAttribute");
498 cinfo = mono_custom_attrs_from_class (klass);
500 MonoReflectionComVisibleAttribute *attr = (MonoReflectionComVisibleAttribute*)mono_custom_attrs_get_attr (cinfo, ComVisibleAttribute);
505 mono_custom_attrs_free (cinfo);
513 static void cominterop_raise_hr_exception (int hr)
515 static MonoMethod* throw_exception_for_hr = NULL;
517 void* params[1] = {&hr};
518 if (!throw_exception_for_hr)
519 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
520 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
521 mono_raise_exception (ex);
525 * cominterop_get_interface:
526 * @obj: managed wrapper object containing COM object
527 * @ic: interface type to retrieve for COM object
529 * Returns: the COM interface requested
532 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
537 g_assert (MONO_CLASS_IS_INTERFACE (ic));
539 mono_cominterop_lock ();
541 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
542 mono_cominterop_unlock ();
546 int found = cominterop_class_guid (ic, iid);
549 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
550 if (hr < 0 && throw_exception) {
551 cominterop_raise_hr_exception (hr);
554 if (hr >= 0 && itf) {
555 mono_cominterop_lock ();
557 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
558 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
559 mono_cominterop_unlock ();
570 cominterop_get_hresult_for_exception (MonoException* exc)
576 #endif /* DISABLE_COM */
579 mono_marshal_init (void)
581 static gboolean module_initialized = FALSE;
583 if (!module_initialized) {
584 char* com_provider_env = NULL;
585 module_initialized = TRUE;
586 InitializeCriticalSection (&marshal_mutex);
587 InitializeCriticalSection (&cominterop_mutex);
588 last_error_tls_id = TlsAlloc ();
589 load_type_info_tls_id = TlsAlloc ();
591 com_provider_env = getenv ("MONO_COM");
592 if (com_provider_env && !strcmp(com_provider_env, "MS"))
593 com_provider = MONO_COM_MS;
595 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
596 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
597 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
598 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
599 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
600 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
601 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
602 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
603 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
604 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
605 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
606 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
607 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
608 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
609 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
610 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
611 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
612 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
613 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
614 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
615 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
616 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
617 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
618 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
619 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
620 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
621 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
622 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
623 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
624 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
625 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
626 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
627 register_icall (g_free, "g_free", "void ptr", FALSE);
628 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
629 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
630 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
631 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
632 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
633 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
634 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
635 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
636 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
637 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
638 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
639 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
640 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
641 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
642 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
644 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
645 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
646 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
647 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
648 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
649 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
650 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
651 #endif /* DISABLE_COM */
656 mono_marshal_cleanup (void)
658 TlsFree (load_type_info_tls_id);
659 TlsFree (last_error_tls_id);
660 DeleteCriticalSection (&marshal_mutex);
661 DeleteCriticalSection (&cominterop_mutex);
664 MonoClass *byte_array_class;
665 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
666 static MonoMethod *method_set_context, *method_get_context;
667 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
670 mono_remoting_marshal_init (void)
674 static gboolean module_initialized = FALSE;
676 if (!module_initialized) {
677 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
678 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
679 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
680 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
682 klass = mono_defaults.real_proxy_class;
683 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
685 klass = mono_defaults.exception_class;
686 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
688 klass = mono_defaults.thread_class;
689 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
691 klass = mono_defaults.appdomain_class;
692 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
693 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
695 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
696 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
698 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
699 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
701 module_initialized = TRUE;
706 mono_delegate_to_ftnptr (MonoDelegate *delegate)
708 MonoMethod *method, *wrapper;
714 if (delegate->delegate_trampoline)
715 return delegate->delegate_trampoline;
717 klass = ((MonoObject *)delegate)->vtable->klass;
718 g_assert (klass->delegate);
720 method = delegate->method;
722 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
724 delegate->delegate_trampoline = mono_compile_method (wrapper);
726 // Add the delegate to the delegate hash table
727 delegate_hash_table_add (delegate);
729 /* when the object is collected, collect the dynamic method, too */
730 mono_object_register_finalizer ((MonoObject*)delegate);
732 return delegate->delegate_trampoline;
736 * this hash table maps from a delegate trampoline object to a weak reference
737 * of the delegate. As an optimizations with a non-moving GC we store the
738 * object pointer itself, otherwise we use a GC handle.
740 static GHashTable *delegate_hash_table;
743 delegate_hash_table_new (void) {
744 return g_hash_table_new (NULL, NULL);
748 delegate_hash_table_remove (MonoDelegate *d)
750 #ifdef HAVE_MOVING_COLLECTOR
753 mono_marshal_lock ();
754 if (delegate_hash_table == NULL)
755 delegate_hash_table = delegate_hash_table_new ();
756 #ifdef HAVE_MOVING_COLLECTOR
757 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
759 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
760 mono_marshal_unlock ();
761 #ifdef HAVE_MOVING_COLLECTOR
762 mono_gchandle_free (gchandle);
767 delegate_hash_table_add (MonoDelegate *d)
769 #ifdef HAVE_MOVING_COLLECTOR
770 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
772 mono_marshal_lock ();
773 if (delegate_hash_table == NULL)
774 delegate_hash_table = delegate_hash_table_new ();
775 #ifdef HAVE_MOVING_COLLECTOR
776 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
778 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
780 mono_marshal_unlock ();
784 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
786 #ifdef HAVE_MOVING_COLLECTOR
791 mono_marshal_lock ();
792 if (delegate_hash_table == NULL)
793 delegate_hash_table = delegate_hash_table_new ();
795 #ifdef HAVE_MOVING_COLLECTOR
796 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
797 mono_marshal_unlock ();
799 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
803 d = g_hash_table_lookup (delegate_hash_table, ftn);
804 mono_marshal_unlock ();
807 /* This is a native function, so construct a delegate for it */
808 static MonoClass *UnmanagedFunctionPointerAttribute;
809 MonoMethodSignature *sig;
811 MonoMarshalSpec **mspecs;
812 MonoCustomAttrInfo *cinfo;
813 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
814 MonoMethod *invoke = mono_get_delegate_invoke (klass);
815 MonoMethodPInvoke piinfo;
818 memset (&piinfo, 0, sizeof (piinfo));
819 if (!UnmanagedFunctionPointerAttribute)
820 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
822 /* The attribute is only available in Net 2.0 */
823 if (UnmanagedFunctionPointerAttribute) {
825 * The pinvoke attributes are stored in a real custom attribute so we have to
828 cinfo = mono_custom_attrs_from_class (klass);
830 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
832 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
835 mono_custom_attrs_free (cinfo);
839 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
840 mono_method_get_marshal_info (invoke, mspecs);
841 /* Freed below so don't alloc from mempool */
842 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
845 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
847 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
849 mono_metadata_free_marshal_spec (mspecs [i]);
853 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
854 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
857 if (d->object.vtable->domain != mono_domain_get ())
858 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
864 mono_delegate_free_ftnptr (MonoDelegate *delegate)
869 delegate_hash_table_remove (delegate);
871 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
873 if (!delegate->target) {
874 /* The wrapper method is shared between delegates -> no need to free it */
879 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
882 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
887 mono_array_to_savearray (MonoArray *array)
892 g_assert_not_reached ();
897 mono_array_to_lparray (MonoArray *array)
902 /* fixme: maybe we need to make a copy */
903 return array->vector;
907 mono_byvalarray_to_array (MonoArray *arr, gpointer native_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) {
912 GError *error = NULL;
916 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
919 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
923 g_error_free (error);
926 g_assert_not_reached ();
930 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
932 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
934 if (elclass == mono_defaults.byte_class) {
936 GError *error = NULL;
938 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
940 MonoException *exc = mono_get_exception_argument ("string", error->message);
941 g_error_free (error);
942 mono_raise_exception (exc);
945 memcpy (native_arr, as, MIN (strlen (as), elnum));
948 g_assert_not_reached ();
953 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
955 GError *error = NULL;
965 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
967 if (items_written > mono_stringbuilder_capacity (sb))
968 items_written = mono_stringbuilder_capacity (sb);
971 if (! sb->str || sb->str == sb->cached_str) {
972 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
973 sb->cached_str = NULL;
976 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
977 sb->length = items_written;
979 g_error_free (error);
985 mono_string_utf8_to_builder2 (char *text)
988 MonoStringBuilder *sb;
989 static MonoClass *string_builder_class;
990 static MonoMethod *sb_ctor;
997 if (!string_builder_class) {
998 MonoMethodDesc *desc;
1000 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
1001 g_assert (string_builder_class);
1002 desc = mono_method_desc_new (":.ctor(int)", FALSE);
1003 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
1005 mono_method_desc_free (desc);
1010 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
1013 mono_runtime_invoke (sb_ctor, sb, args, &exc);
1016 mono_string_utf8_to_builder (sb, text);
1022 * FIXME: This routine does not seem to do what it seems to do
1023 * the @text is never copied into the string builder
1026 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1033 g_assert (mono_string_chars (sb->str) == text);
1035 for (len = 0; text [len] != 0; ++len)
1042 * mono_string_builder_to_utf8:
1043 * @sb: the string builder
1045 * Converts to utf8 the contents of the MonoStringBuilder.
1047 * Returns: a utf8 string with the contents of the StringBuilder.
1049 * The return value must be released with g_free.
1052 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1054 GError *error = NULL;
1055 gchar *tmp, *res = NULL;
1060 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
1062 * The sb could have been allocated with the default capacity and be empty.
1063 * we need to alloc a buffer of the default capacity in this case.
1065 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1066 sb->cached_str = NULL;
1069 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
1071 g_error_free (error);
1072 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1074 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
1075 memcpy (res, tmp, sb->length + 1);
1083 * mono_string_builder_to_utf16:
1084 * @sb: the string builder
1086 * Converts to utf16 the contents of the MonoStringBuilder.
1088 * Returns: a utf16 string with the contents of the StringBuilder.
1090 * The return value must not be freed.
1093 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1101 * The stringbuilder might not have ownership of this string. If this is
1102 * the case, we must duplicate the string, so that we don't munge immutable
1105 if (sb->str == sb->cached_str) {
1107 * The sb could have been allocated with the default capacity and be empty.
1108 * we need to alloc a buffer of the default capacity in this case.
1110 if (sb->str->length == 0)
1111 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1113 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1114 sb->cached_str = NULL;
1117 return mono_string_chars (sb->str);
1121 mono_string_to_lpstr (MonoString *s)
1123 #ifdef PLATFORM_WIN32
1126 GError *error = NULL;
1132 as = CoTaskMemAlloc (1);
1137 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1139 MonoException *exc = mono_get_exception_argument ("string", error->message);
1140 g_error_free (error);
1141 mono_raise_exception(exc);
1144 as = CoTaskMemAlloc (len + 1);
1145 memcpy (as, tmp, len + 1);
1150 return mono_string_to_utf8 (s);
1155 mono_string_to_ansibstr (MonoString *string_obj)
1157 g_error ("UnmanagedMarshal.BStr is not implemented.");
1161 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
1162 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
1163 typedef void (*SysFreeStringFunc)(gunichar* str);
1165 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
1166 static SysStringLenFunc sys_string_len_ms = NULL;
1167 static SysFreeStringFunc sys_free_string_ms = NULL;
1170 init_com_provider_ms (void)
1172 static gboolean initialized = FALSE;
1174 MonoDl *module = NULL;
1175 const char* scope = "liboleaut32.so";
1180 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
1182 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
1183 g_assert_not_reached ();
1186 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
1188 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
1189 g_assert_not_reached ();
1193 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
1195 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
1196 g_assert_not_reached ();
1200 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
1202 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
1203 g_assert_not_reached ();
1212 mono_string_to_bstr (MonoString *string_obj)
1216 #ifdef PLATFORM_WIN32
1217 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1219 if (com_provider == MONO_COM_DEFAULT) {
1220 int slen = mono_string_length (string_obj);
1221 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
1222 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
1225 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
1226 * ((guint32 *) ret) = slen * sizeof(gunichar2);
1227 ret [4 + slen * sizeof(gunichar2)] = 0;
1228 ret [5 + slen * sizeof(gunichar2)] = 0;
1231 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1232 gpointer ret = NULL;
1233 gunichar* str = NULL;
1235 len = mono_string_length (string_obj);
1236 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
1238 ret = sys_alloc_string_len_ms (str, len);
1242 g_assert_not_reached ();
1248 mono_string_from_bstr (gpointer bstr)
1252 #ifdef PLATFORM_WIN32
1253 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1255 if (com_provider == MONO_COM_DEFAULT) {
1256 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
1257 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1258 MonoString* str = NULL;
1260 gunichar2* utf16 = NULL;
1262 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
1263 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
1267 g_assert_not_reached ();
1274 mono_free_bstr (gpointer bstr)
1278 #ifdef PLATFORM_WIN32
1279 SysFreeString ((BSTR)bstr);
1281 if (com_provider == MONO_COM_DEFAULT) {
1282 g_free (((char *)bstr) - 4);
1283 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1284 sys_free_string_ms (bstr);
1286 g_assert_not_reached ();
1293 * mono_string_to_byvalstr:
1294 * @dst: Where to store the null-terminated utf8 decoded string.
1295 * @src: the MonoString to copy.
1296 * @size: the maximum number of bytes to copy.
1298 * Copies the MonoString pointed to by @src as a utf8 string
1299 * into @dst, it copies at most @size bytes into the destination.
1302 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1307 g_assert (dst != NULL);
1308 g_assert (size > 0);
1310 memset (dst, 0, size);
1314 s = mono_string_to_utf8 (src);
1315 len = MIN (size, strlen (s));
1318 memcpy (dst, s, len);
1323 * mono_string_to_byvalwstr:
1324 * @dst: Where to store the null-terminated utf16 decoded string.
1325 * @src: the MonoString to copy.
1326 * @size: the maximum number of bytes to copy.
1328 * Copies the MonoString pointed to by @src as a utf16 string into
1329 * @dst, it copies at most @size bytes into the destination (including
1330 * a terminating 16-bit zero terminator).
1333 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1337 g_assert (dst != NULL);
1338 g_assert (size > 1);
1341 memset (dst, 0, size * 2);
1345 len = MIN (size, (mono_string_length (src)));
1346 memcpy (dst, mono_string_chars (src), size * 2);
1347 if (size <= mono_string_length (src))
1349 *((gunichar2 *) dst + len) = 0;
1353 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1356 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1357 mono_mb_emit_byte (mb, CEE_LDIND_I);
1358 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1359 mono_mb_emit_byte (mb, CEE_ADD);
1360 mono_mb_emit_byte (mb, CEE_LDIND_I);
1361 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1362 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1363 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1364 pos = mono_mb_emit_branch (mb, branch_code);
1369 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1372 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1373 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1374 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1375 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1376 mono_mb_emit_icon (mb, -1);
1377 pos = mono_mb_emit_branch (mb, branch_code);
1382 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1384 static int offset = -1;
1388 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1390 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1391 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1393 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1394 mono_mb_emit_ldflda (mb, offset);
1395 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1396 mono_mb_emit_icon (mb, mask);
1397 mono_mb_emit_byte (mb, CEE_AND);
1398 mono_mb_emit_icon (mb, 0);
1399 return mono_mb_emit_branch (mb, branch_code);
1405 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1407 // get function pointer from 1st arg, the COM interface pointer
1408 mono_mb_emit_ldarg (mb, 0);
1409 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1410 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1413 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1414 mono_mb_emit_calli (mb, sig);
1415 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1416 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1419 #endif /* DISABLE_COM */
1422 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1424 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1428 mono_type_to_ldind (MonoType *type)
1434 switch (type->type) {
1436 return CEE_LDIND_I1;
1438 case MONO_TYPE_BOOLEAN:
1439 return CEE_LDIND_U1;
1441 return CEE_LDIND_I2;
1443 case MONO_TYPE_CHAR:
1444 return CEE_LDIND_U2;
1446 return CEE_LDIND_I4;
1448 return CEE_LDIND_U4;
1452 case MONO_TYPE_FNPTR:
1454 case MONO_TYPE_CLASS:
1455 case MONO_TYPE_STRING:
1456 case MONO_TYPE_OBJECT:
1457 case MONO_TYPE_SZARRAY:
1458 case MONO_TYPE_ARRAY:
1459 return CEE_LDIND_REF;
1462 return CEE_LDIND_I8;
1464 return CEE_LDIND_R4;
1466 return CEE_LDIND_R8;
1467 case MONO_TYPE_VALUETYPE:
1468 if (type->data.klass->enumtype) {
1469 type = type->data.klass->enum_basetype;
1473 case MONO_TYPE_TYPEDBYREF:
1475 case MONO_TYPE_GENERICINST:
1476 type = &type->data.generic_class->container_class->byval_arg;
1479 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1485 mono_type_to_stind (MonoType *type)
1491 switch (type->type) {
1494 case MONO_TYPE_BOOLEAN:
1495 return CEE_STIND_I1;
1498 case MONO_TYPE_CHAR:
1499 return CEE_STIND_I2;
1502 return CEE_STIND_I4;
1506 case MONO_TYPE_FNPTR:
1508 case MONO_TYPE_CLASS:
1509 case MONO_TYPE_STRING:
1510 case MONO_TYPE_OBJECT:
1511 case MONO_TYPE_SZARRAY:
1512 case MONO_TYPE_ARRAY:
1513 return CEE_STIND_REF;
1516 return CEE_STIND_I8;
1518 return CEE_STIND_R4;
1520 return CEE_STIND_R8;
1521 case MONO_TYPE_VALUETYPE:
1522 if (type->data.klass->enumtype) {
1523 type = type->data.klass->enum_basetype;
1527 case MONO_TYPE_TYPEDBYREF:
1529 case MONO_TYPE_GENERICINST:
1530 type = &type->data.generic_class->container_class->byval_arg;
1533 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1539 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1542 case MONO_MARSHAL_CONV_BOOL_I4:
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_ldloc (mb, 0);
1545 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1546 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1547 mono_mb_emit_byte (mb, 3);
1548 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1549 mono_mb_emit_byte (mb, CEE_BR_S);
1550 mono_mb_emit_byte (mb, 1);
1551 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1552 mono_mb_emit_byte (mb, CEE_STIND_I1);
1554 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1555 mono_mb_emit_ldloc (mb, 1);
1556 mono_mb_emit_ldloc (mb, 0);
1557 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1558 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1559 mono_mb_emit_byte (mb, 3);
1560 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1561 mono_mb_emit_byte (mb, CEE_BR_S);
1562 mono_mb_emit_byte (mb, 1);
1563 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1564 mono_mb_emit_byte (mb, CEE_STIND_I1);
1566 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1567 MonoClass *eklass = NULL;
1570 if (type->type == MONO_TYPE_SZARRAY) {
1571 eklass = type->data.klass;
1573 g_assert_not_reached ();
1576 esize = mono_class_native_size (eklass, NULL);
1578 /* create a new array */
1579 mono_mb_emit_ldloc (mb, 1);
1580 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1581 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1582 mono_mb_emit_byte (mb, CEE_STIND_I);
1584 if (eklass->blittable) {
1585 /* copy the elements */
1586 mono_mb_emit_ldloc (mb, 1);
1587 mono_mb_emit_byte (mb, CEE_LDIND_I);
1588 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1589 mono_mb_emit_byte (mb, CEE_ADD);
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1592 mono_mb_emit_byte (mb, CEE_PREFIX1);
1593 mono_mb_emit_byte (mb, CEE_CPBLK);
1596 int array_var, src_var, dst_var, index_var;
1597 guint32 label2, label3;
1599 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1600 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1601 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1604 mono_mb_emit_ldloc (mb, 1);
1605 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1606 mono_mb_emit_stloc (mb, array_var);
1608 /* save the old src pointer */
1609 mono_mb_emit_ldloc (mb, 0);
1610 mono_mb_emit_stloc (mb, src_var);
1611 /* save the old dst pointer */
1612 mono_mb_emit_ldloc (mb, 1);
1613 mono_mb_emit_stloc (mb, dst_var);
1615 /* Emit marshalling loop */
1616 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1617 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1618 mono_mb_emit_stloc (mb, index_var);
1621 label2 = mono_mb_get_label (mb);
1622 mono_mb_emit_ldloc (mb, index_var);
1623 mono_mb_emit_ldloc (mb, array_var);
1624 mono_mb_emit_byte (mb, CEE_LDLEN);
1625 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1627 /* src is already set */
1630 mono_mb_emit_ldloc (mb, array_var);
1631 mono_mb_emit_ldloc (mb, index_var);
1632 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1633 mono_mb_emit_stloc (mb, 1);
1635 /* Do the conversion */
1636 emit_struct_conv (mb, eklass, TRUE);
1639 mono_mb_emit_add_to_local (mb, index_var, 1);
1641 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1643 mono_mb_patch_branch (mb, label3);
1645 /* restore the old src pointer */
1646 mono_mb_emit_ldloc (mb, src_var);
1647 mono_mb_emit_stloc (mb, 0);
1648 /* restore the old dst pointer */
1649 mono_mb_emit_ldloc (mb, dst_var);
1650 mono_mb_emit_stloc (mb, 1);
1654 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1655 MonoClass *eclass = mono_defaults.char_class;
1657 /* create a new array */
1658 mono_mb_emit_ldloc (mb, 1);
1659 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1660 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1661 mono_mb_emit_byte (mb, CEE_STIND_REF);
1663 mono_mb_emit_ldloc (mb, 1);
1664 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1665 mono_mb_emit_ldloc (mb, 0);
1666 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1667 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1668 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1671 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1672 mono_mb_emit_ldloc (mb, 1);
1673 mono_mb_emit_ldloc (mb, 0);
1674 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1675 mono_mb_emit_byte (mb, CEE_STIND_REF);
1677 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1678 mono_mb_emit_ldloc (mb, 1);
1679 mono_mb_emit_ldloc (mb, 0);
1680 mono_mb_emit_icall (mb, mono_string_from_utf16);
1681 mono_mb_emit_byte (mb, CEE_STIND_REF);
1683 case MONO_MARSHAL_CONV_STR_LPTSTR:
1684 mono_mb_emit_ldloc (mb, 1);
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_byte (mb, CEE_LDIND_I);
1687 #ifdef PLATFORM_WIN32
1688 mono_mb_emit_icall (mb, mono_string_from_utf16);
1690 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1692 mono_mb_emit_byte (mb, CEE_STIND_REF);
1694 case MONO_MARSHAL_CONV_STR_LPSTR:
1695 mono_mb_emit_ldloc (mb, 1);
1696 mono_mb_emit_ldloc (mb, 0);
1697 mono_mb_emit_byte (mb, CEE_LDIND_I);
1698 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1699 mono_mb_emit_byte (mb, CEE_STIND_REF);
1701 case MONO_MARSHAL_CONV_STR_LPWSTR:
1702 mono_mb_emit_ldloc (mb, 1);
1703 mono_mb_emit_ldloc (mb, 0);
1704 mono_mb_emit_byte (mb, CEE_LDIND_I);
1705 mono_mb_emit_icall (mb, mono_string_from_utf16);
1706 mono_mb_emit_byte (mb, CEE_STIND_REF);
1708 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1709 MonoClass *klass = mono_class_from_mono_type (type);
1710 int src_var, dst_var;
1712 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1713 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1715 /* *dst = new object */
1716 mono_mb_emit_ldloc (mb, 1);
1717 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1718 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1719 mono_mb_emit_byte (mb, CEE_STIND_REF);
1721 /* save the old src pointer */
1722 mono_mb_emit_ldloc (mb, 0);
1723 mono_mb_emit_stloc (mb, src_var);
1724 /* save the old dst pointer */
1725 mono_mb_emit_ldloc (mb, 1);
1726 mono_mb_emit_stloc (mb, dst_var);
1728 /* dst = pointer to newly created object data */
1729 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_byte (mb, CEE_LDIND_I);
1731 mono_mb_emit_icon (mb, sizeof (MonoObject));
1732 mono_mb_emit_byte (mb, CEE_ADD);
1733 mono_mb_emit_stloc (mb, 1);
1735 emit_struct_conv (mb, klass, TRUE);
1737 /* restore the old src pointer */
1738 mono_mb_emit_ldloc (mb, src_var);
1739 mono_mb_emit_stloc (mb, 0);
1740 /* restore the old dst pointer */
1741 mono_mb_emit_ldloc (mb, dst_var);
1742 mono_mb_emit_stloc (mb, 1);
1745 case MONO_MARSHAL_CONV_DEL_FTN: {
1746 MonoClass *klass = mono_class_from_mono_type (type);
1748 mono_mb_emit_ldloc (mb, 1);
1749 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1750 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1751 mono_mb_emit_ldloc (mb, 0);
1752 mono_mb_emit_byte (mb, CEE_LDIND_I);
1753 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1754 mono_mb_emit_byte (mb, CEE_STIND_REF);
1757 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1758 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1762 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1763 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1764 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1765 static MonoClass* com_interop_proxy_class = NULL;
1766 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1767 static MonoMethod* get_transparent_proxy = NULL;
1769 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1770 MonoClass *klass = NULL;
1772 /* COM types are initialized lazily */
1773 mono_init_com_types ();
1775 klass = mono_class_from_mono_type (type);
1777 mono_mb_emit_ldloc (mb, 1);
1778 mono_mb_emit_byte (mb, CEE_LDNULL);
1779 mono_mb_emit_byte (mb, CEE_STIND_REF);
1781 mono_mb_emit_ldloc (mb, 0);
1782 mono_mb_emit_byte (mb, CEE_LDIND_I);
1783 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1785 /* load dst to store later */
1786 mono_mb_emit_ldloc (mb, 1);
1788 mono_mb_emit_ldloc (mb, 0);
1789 mono_mb_emit_byte (mb, CEE_LDIND_I);
1790 mono_mb_emit_icon (mb, TRUE);
1791 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1792 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1794 if (!com_interop_proxy_class)
1795 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1796 if (!com_interop_proxy_get_proxy)
1797 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1798 if (!get_transparent_proxy)
1799 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1801 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1803 mono_mb_emit_ldloc (mb, 0);
1804 mono_mb_emit_byte (mb, CEE_LDIND_I);
1805 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1806 mono_mb_emit_icall (mb, type_from_handle);
1807 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1808 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1809 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1811 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1813 mono_mb_emit_byte (mb, CEE_STIND_REF);
1814 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1816 /* is already managed object */
1817 mono_mb_patch_short_branch (mb, pos_ccw);
1818 mono_mb_emit_ldloc (mb, 0);
1819 mono_mb_emit_byte (mb, CEE_LDIND_I);
1820 mono_mb_emit_icon (mb, TRUE);
1821 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1823 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1825 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1827 mono_mb_emit_byte (mb, CEE_STIND_REF);
1829 mono_mb_patch_short_branch (mb, pos_end);
1831 mono_mb_patch_short_branch (mb, pos_null);
1834 #endif /* DISABLE_COM */
1836 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1838 * Passing SafeHandles as ref does not allow the unmanaged code
1839 * to change the SafeHandle value. If the value is changed,
1840 * we should issue a diagnostic exception (NotSupportedException)
1841 * that informs the user that changes to handles in unmanaged code
1844 * Since we currently have no access to the original
1845 * SafeHandle that was used during the marshalling,
1846 * for now we just ignore this, and ignore/discard any
1847 * changes that might have happened to the handle.
1852 case MONO_MARSHAL_CONV_HANDLEREF: {
1854 * Passing HandleRefs in a struct that is ref()ed does not
1855 * copy the values back to the HandleRef
1860 case MONO_MARSHAL_CONV_STR_BSTR:
1861 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1862 case MONO_MARSHAL_CONV_STR_TBSTR:
1863 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1865 g_warning ("marshaling conversion %d not implemented", conv);
1866 g_assert_not_reached ();
1871 conv_to_icall (MonoMarshalConv conv)
1874 case MONO_MARSHAL_CONV_STR_LPWSTR:
1875 return mono_marshal_string_to_utf16;
1876 case MONO_MARSHAL_CONV_LPWSTR_STR:
1877 return mono_string_from_utf16;
1878 case MONO_MARSHAL_CONV_LPSTR_STR:
1879 return mono_string_new_wrapper;
1880 case MONO_MARSHAL_CONV_STR_LPTSTR:
1881 #ifdef PLATFORM_WIN32
1882 return mono_marshal_string_to_utf16;
1884 return mono_string_to_lpstr;
1886 case MONO_MARSHAL_CONV_STR_LPSTR:
1887 return mono_string_to_lpstr;
1888 case MONO_MARSHAL_CONV_STR_BSTR:
1889 return mono_string_to_bstr;
1890 case MONO_MARSHAL_CONV_BSTR_STR:
1891 return mono_string_from_bstr;
1892 case MONO_MARSHAL_CONV_STR_TBSTR:
1893 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1894 return mono_string_to_ansibstr;
1895 case MONO_MARSHAL_CONV_SB_LPSTR:
1896 return mono_string_builder_to_utf8;
1897 case MONO_MARSHAL_CONV_SB_LPTSTR:
1898 #ifdef PLATFORM_WIN32
1899 return mono_string_builder_to_utf16;
1901 return mono_string_builder_to_utf8;
1903 case MONO_MARSHAL_CONV_SB_LPWSTR:
1904 return mono_string_builder_to_utf16;
1905 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1906 return mono_array_to_savearray;
1907 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1908 return mono_array_to_lparray;
1909 case MONO_MARSHAL_CONV_DEL_FTN:
1910 return mono_delegate_to_ftnptr;
1911 case MONO_MARSHAL_CONV_FTN_DEL:
1912 return mono_ftnptr_to_delegate;
1913 case MONO_MARSHAL_CONV_LPSTR_SB:
1914 return mono_string_utf8_to_builder;
1915 case MONO_MARSHAL_CONV_LPTSTR_SB:
1916 #ifdef PLATFORM_WIN32
1917 return mono_string_utf16_to_builder;
1919 return mono_string_utf8_to_builder;
1921 case MONO_MARSHAL_CONV_LPWSTR_SB:
1922 return mono_string_utf16_to_builder;
1923 case MONO_MARSHAL_FREE_ARRAY:
1924 return mono_marshal_free_array;
1925 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1926 return mono_string_to_byvalstr;
1927 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1928 return mono_string_to_byvalwstr;
1930 g_assert_not_reached ();
1937 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1942 case MONO_MARSHAL_CONV_BOOL_I4:
1943 mono_mb_emit_ldloc (mb, 1);
1944 mono_mb_emit_ldloc (mb, 0);
1945 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1946 mono_mb_emit_byte (mb, CEE_STIND_I4);
1948 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1949 mono_mb_emit_ldloc (mb, 1);
1950 mono_mb_emit_ldloc (mb, 0);
1951 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1952 mono_mb_emit_byte (mb, CEE_NEG);
1953 mono_mb_emit_byte (mb, CEE_STIND_I2);
1955 case MONO_MARSHAL_CONV_STR_LPWSTR:
1956 case MONO_MARSHAL_CONV_STR_LPSTR:
1957 case MONO_MARSHAL_CONV_STR_LPTSTR:
1958 case MONO_MARSHAL_CONV_STR_BSTR:
1959 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1960 case MONO_MARSHAL_CONV_STR_TBSTR: {
1963 /* free space if free == true */
1964 mono_mb_emit_ldloc (mb, 2);
1965 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1966 mono_mb_emit_ldloc (mb, 1);
1967 mono_mb_emit_byte (mb, CEE_LDIND_I);
1968 mono_mb_emit_icall (mb, g_free);
1969 mono_mb_patch_short_branch (mb, pos);
1971 mono_mb_emit_ldloc (mb, 1);
1972 mono_mb_emit_ldloc (mb, 0);
1973 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1974 mono_mb_emit_icall (mb, conv_to_icall (conv));
1975 mono_mb_emit_byte (mb, CEE_STIND_I);
1978 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1979 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1980 case MONO_MARSHAL_CONV_DEL_FTN:
1981 mono_mb_emit_ldloc (mb, 1);
1982 mono_mb_emit_ldloc (mb, 0);
1983 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1984 mono_mb_emit_icall (mb, conv_to_icall (conv));
1985 mono_mb_emit_byte (mb, CEE_STIND_I);
1987 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1988 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1991 mono_mb_emit_ldloc (mb, 1); /* dst */
1992 mono_mb_emit_ldloc (mb, 0);
1993 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1994 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1995 mono_mb_emit_icall (mb, conv_to_icall (conv));
1998 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1999 MonoClass *eklass = NULL;
2002 if (type->type == MONO_TYPE_SZARRAY) {
2003 eklass = type->data.klass;
2005 g_assert_not_reached ();
2008 if (eklass->valuetype)
2009 esize = mono_class_native_size (eklass, NULL);
2011 esize = sizeof (gpointer);
2013 mono_mb_emit_ldloc (mb, 0);
2014 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2015 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2017 if (eklass->blittable) {
2018 mono_mb_emit_ldloc (mb, 1);
2019 mono_mb_emit_ldloc (mb, 0);
2020 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2021 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
2022 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
2023 mono_mb_emit_byte (mb, CEE_PREFIX1);
2024 mono_mb_emit_byte (mb, CEE_CPBLK);
2026 int array_var, src_var, dst_var, index_var;
2027 guint32 label2, label3;
2029 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2030 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2031 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2034 mono_mb_emit_ldloc (mb, 0);
2035 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2036 mono_mb_emit_stloc (mb, array_var);
2038 /* save the old src pointer */
2039 mono_mb_emit_ldloc (mb, 0);
2040 mono_mb_emit_stloc (mb, src_var);
2041 /* save the old dst pointer */
2042 mono_mb_emit_ldloc (mb, 1);
2043 mono_mb_emit_stloc (mb, dst_var);
2045 /* Emit marshalling loop */
2046 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2047 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2048 mono_mb_emit_stloc (mb, index_var);
2051 label2 = mono_mb_get_label (mb);
2052 mono_mb_emit_ldloc (mb, index_var);
2053 mono_mb_emit_ldloc (mb, array_var);
2054 mono_mb_emit_byte (mb, CEE_LDLEN);
2055 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2058 mono_mb_emit_ldloc (mb, array_var);
2059 mono_mb_emit_ldloc (mb, index_var);
2060 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2061 mono_mb_emit_stloc (mb, 0);
2063 /* dst is already set */
2065 /* Do the conversion */
2066 emit_struct_conv (mb, eklass, FALSE);
2069 mono_mb_emit_add_to_local (mb, index_var, 1);
2071 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2073 mono_mb_patch_branch (mb, label3);
2075 /* restore the old src pointer */
2076 mono_mb_emit_ldloc (mb, src_var);
2077 mono_mb_emit_stloc (mb, 0);
2078 /* restore the old dst pointer */
2079 mono_mb_emit_ldloc (mb, dst_var);
2080 mono_mb_emit_stloc (mb, 1);
2083 mono_mb_patch_branch (mb, pos);
2086 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2087 mono_mb_emit_ldloc (mb, 0);
2088 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2089 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2091 mono_mb_emit_ldloc (mb, 1);
2092 mono_mb_emit_ldloc (mb, 0);
2093 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2094 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
2095 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2096 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2097 mono_mb_patch_short_branch (mb, pos);
2100 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2101 int src_var, dst_var;
2103 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2104 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2106 mono_mb_emit_ldloc (mb, 0);
2107 mono_mb_emit_byte (mb, CEE_LDIND_I);
2108 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2110 /* save the old src pointer */
2111 mono_mb_emit_ldloc (mb, 0);
2112 mono_mb_emit_stloc (mb, src_var);
2113 /* save the old dst pointer */
2114 mono_mb_emit_ldloc (mb, 1);
2115 mono_mb_emit_stloc (mb, dst_var);
2117 /* src = pointer to object data */
2118 mono_mb_emit_ldloc (mb, 0);
2119 mono_mb_emit_byte (mb, CEE_LDIND_I);
2120 mono_mb_emit_icon (mb, sizeof (MonoObject));
2121 mono_mb_emit_byte (mb, CEE_ADD);
2122 mono_mb_emit_stloc (mb, 0);
2124 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2126 /* restore the old src pointer */
2127 mono_mb_emit_ldloc (mb, src_var);
2128 mono_mb_emit_stloc (mb, 0);
2129 /* restore the old dst pointer */
2130 mono_mb_emit_ldloc (mb, dst_var);
2131 mono_mb_emit_stloc (mb, 1);
2133 mono_mb_patch_branch (mb, pos);
2138 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2139 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2140 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2141 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2143 /* COM types are initialized lazily */
2144 mono_init_com_types ();
2147 mono_mb_emit_ldloc (mb, 1);
2148 mono_mb_emit_icon (mb, 0);
2149 mono_mb_emit_byte (mb, CEE_CONV_U);
2150 mono_mb_emit_byte (mb, CEE_STIND_I);
2152 mono_mb_emit_ldloc (mb, 0);
2153 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2155 // if null just break, dst was already inited to 0
2156 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2158 mono_mb_emit_ldloc (mb, 0);
2159 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2160 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2161 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2163 // load dst to store later
2164 mono_mb_emit_ldloc (mb, 1);
2167 mono_mb_emit_ldloc (mb, 0);
2168 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2169 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2170 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2172 /* load the RCW from the ComInteropProxy*/
2173 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2174 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2176 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2177 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2178 mono_mb_emit_icon (mb, TRUE);
2179 mono_mb_emit_icall (mb, cominterop_get_interface);
2182 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2183 static MonoProperty* iunknown = NULL;
2186 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2187 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2189 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2190 static MonoProperty* idispatch = NULL;
2193 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2194 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2197 g_assert_not_reached ();
2199 mono_mb_emit_byte (mb, CEE_STIND_I);
2200 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2203 mono_mb_patch_short_branch (mb, pos_rcw);
2204 /* load dst to store later */
2205 mono_mb_emit_ldloc (mb, 1);
2207 mono_mb_emit_ldloc (mb, 0);
2208 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2210 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2211 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2212 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2213 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2214 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2215 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2217 g_assert_not_reached ();
2218 mono_mb_emit_icall (mb, cominterop_get_ccw);
2219 mono_mb_emit_byte (mb, CEE_STIND_I);
2221 mono_mb_patch_short_branch (mb, pos_end);
2222 mono_mb_patch_short_branch (mb, pos_null);
2225 #endif /* DISABLE_COM */
2227 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2228 int dar_release_slot, pos;
2230 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2233 * The following is ifdefed-out, because I have no way of doing the
2234 * DangerousRelease when destroying the structure
2237 /* set release = false */
2238 mono_mb_emit_icon (mb, 0);
2239 mono_mb_emit_stloc (mb, dar_release_slot);
2240 if (!sh_dangerous_add_ref)
2241 init_safe_handle ();
2243 /* safehandle.DangerousAddRef (ref release) */
2244 mono_mb_emit_ldloc (mb, 0); /* the source */
2245 mono_mb_emit_byte (mb, CEE_LDIND_I);
2246 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2247 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2249 mono_mb_emit_ldloc (mb, 0);
2250 mono_mb_emit_byte (mb, CEE_LDIND_I);
2251 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2252 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2253 mono_mb_patch_branch (mb, pos);
2255 /* Pull the handle field from SafeHandle */
2256 mono_mb_emit_ldloc (mb, 1);
2257 mono_mb_emit_ldloc (mb, 0);
2258 mono_mb_emit_byte (mb, CEE_LDIND_I);
2259 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2260 mono_mb_emit_byte (mb, CEE_LDIND_I);
2261 mono_mb_emit_byte (mb, CEE_STIND_I);
2265 case MONO_MARSHAL_CONV_HANDLEREF: {
2266 mono_mb_emit_ldloc (mb, 1);
2267 mono_mb_emit_ldloc (mb, 0);
2268 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2269 mono_mb_emit_byte (mb, CEE_ADD);
2270 mono_mb_emit_byte (mb, CEE_LDIND_I);
2271 mono_mb_emit_byte (mb, CEE_STIND_I);
2276 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2277 MonoException *exc = mono_get_exception_not_implemented (msg);
2280 mono_raise_exception (exc);
2286 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2288 MonoMarshalType *info;
2292 emit_struct_conv(mb, klass->parent, to_object);
2294 info = mono_marshal_load_type_info (klass);
2296 if (info->native_size == 0)
2299 if (klass->blittable) {
2300 int msize = mono_class_value_size (klass, NULL);
2301 g_assert (msize == info->native_size);
2302 mono_mb_emit_ldloc (mb, 1);
2303 mono_mb_emit_ldloc (mb, 0);
2304 mono_mb_emit_icon (mb, msize);
2305 mono_mb_emit_byte (mb, CEE_PREFIX1);
2306 mono_mb_emit_byte (mb, CEE_CPBLK);
2308 mono_mb_emit_add_to_local (mb, 0, msize);
2309 mono_mb_emit_add_to_local (mb, 1, msize);
2313 for (i = 0; i < info->num_fields; i++) {
2314 MonoMarshalNative ntype;
2315 MonoMarshalConv conv;
2316 MonoType *ftype = info->fields [i].field->type;
2319 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2321 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2324 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2327 msize = klass->instance_size - info->fields [i].field->offset;
2328 usize = info->native_size - info->fields [i].offset;
2330 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2331 usize = info->fields [i + 1].offset - info->fields [i].offset;
2334 if (klass != mono_defaults.safehandle_class){
2336 * FIXME: Should really check for usize==0 and msize>0, but we apply
2337 * the layout to the managed structure as well.
2340 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2341 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2342 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2343 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2344 "reference field at the same offset as another field.",
2345 mono_type_full_name (&klass->byval_arg));
2348 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2349 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2350 mono_type_full_name (&klass->byval_arg));
2355 case MONO_MARSHAL_CONV_NONE: {
2358 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2359 ftype->type == MONO_TYPE_U) {
2360 mono_mb_emit_ldloc (mb, 1);
2361 mono_mb_emit_ldloc (mb, 0);
2362 mono_mb_emit_byte (mb, CEE_LDIND_I);
2363 mono_mb_emit_byte (mb, CEE_STIND_I);
2374 case MONO_TYPE_BOOLEAN:
2377 case MONO_TYPE_CHAR:
2383 mono_mb_emit_ldloc (mb, 1);
2384 mono_mb_emit_ldloc (mb, 0);
2385 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2386 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2388 case MONO_TYPE_VALUETYPE: {
2389 int src_var, dst_var;
2391 if (ftype->data.klass->enumtype) {
2392 ftype = ftype->data.klass->enum_basetype;
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 /* save the old src pointer */
2400 mono_mb_emit_ldloc (mb, 0);
2401 mono_mb_emit_stloc (mb, src_var);
2402 /* save the old dst pointer */
2403 mono_mb_emit_ldloc (mb, 1);
2404 mono_mb_emit_stloc (mb, dst_var);
2406 emit_struct_conv (mb, ftype->data.klass, to_object);
2408 /* restore the old src pointer */
2409 mono_mb_emit_ldloc (mb, src_var);
2410 mono_mb_emit_stloc (mb, 0);
2411 /* restore the old dst pointer */
2412 mono_mb_emit_ldloc (mb, dst_var);
2413 mono_mb_emit_stloc (mb, 1);
2416 case MONO_TYPE_OBJECT: {
2417 mono_init_com_types ();
2419 static MonoMethod *variant_clear = NULL;
2420 static MonoMethod *get_object_for_native_variant = NULL;
2423 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2424 if (!get_object_for_native_variant)
2425 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2426 mono_mb_emit_ldloc (mb, 1);
2427 mono_mb_emit_ldloc (mb, 0);
2428 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2429 mono_mb_emit_byte (mb, CEE_STIND_REF);
2431 mono_mb_emit_ldloc (mb, 0);
2432 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2435 static MonoMethod *get_native_variant_for_object = NULL;
2437 if (!get_native_variant_for_object)
2438 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2440 mono_mb_emit_ldloc (mb, 0);
2441 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2442 mono_mb_emit_ldloc (mb, 1);
2443 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2449 g_warning ("marshaling type %02x not implemented", ftype->type);
2450 g_assert_not_reached ();
2455 int src_var, dst_var;
2457 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2458 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2460 /* save the old src pointer */
2461 mono_mb_emit_ldloc (mb, 0);
2462 mono_mb_emit_stloc (mb, src_var);
2463 /* save the old dst pointer */
2464 mono_mb_emit_ldloc (mb, 1);
2465 mono_mb_emit_stloc (mb, dst_var);
2468 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2470 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2472 /* restore the old src pointer */
2473 mono_mb_emit_ldloc (mb, src_var);
2474 mono_mb_emit_stloc (mb, 0);
2475 /* restore the old dst pointer */
2476 mono_mb_emit_ldloc (mb, dst_var);
2477 mono_mb_emit_stloc (mb, 1);
2482 mono_mb_emit_add_to_local (mb, 0, usize);
2483 mono_mb_emit_add_to_local (mb, 1, msize);
2485 mono_mb_emit_add_to_local (mb, 0, msize);
2486 mono_mb_emit_add_to_local (mb, 1, usize);
2492 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2494 /* Call DestroyStructure */
2495 /* FIXME: Only do this if needed */
2496 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2497 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2498 mono_mb_emit_ldloc (mb, struct_var);
2499 mono_mb_emit_icall (mb, mono_struct_delete_old);
2503 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2507 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2508 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2509 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2511 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2512 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2514 mono_mb_emit_icall (mb, checkpoint_func);
2516 mono_mb_patch_branch (mb, pos_noabort);
2520 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2522 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2525 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2529 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2531 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2534 static MonoAsyncResult *
2535 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2537 MonoMethodMessage *msg;
2538 MonoDelegate *async_callback;
2542 MonoMethod *method = NULL, *method2 = NULL;
2544 g_assert (delegate);
2546 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2548 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2549 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2551 /* If the target is a proxy, make a direct call. Is proxy's work
2552 // to make the call asynchronous.
2554 MonoAsyncResult *ares;
2556 MonoArray *out_args;
2558 method = delegate->method;
2560 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2561 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2562 g_assert(handle != NULL);
2563 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2564 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2565 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2566 MONO_OBJECT_SETREF (msg, async_result, ares);
2567 msg->call_type = CallType_BeginInvoke;
2569 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2574 klass = delegate->object.vtable->klass;
2576 method = mono_get_delegate_invoke (klass);
2577 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2580 g_assert (method != NULL);
2582 im = mono_get_delegate_invoke (method->klass);
2583 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2585 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2589 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2591 int i, params_var, tmp_var;
2593 /* allocate local (pointer) *params[] */
2594 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2595 /* allocate local (pointer) tmp */
2596 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2598 /* alloate space on stack to store an array of pointers to the arguments */
2599 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2600 mono_mb_emit_byte (mb, CEE_PREFIX1);
2601 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2602 mono_mb_emit_stloc (mb, params_var);
2605 mono_mb_emit_ldloc (mb, params_var);
2606 mono_mb_emit_stloc (mb, tmp_var);
2608 if (save_this && sig->hasthis) {
2609 mono_mb_emit_ldloc (mb, tmp_var);
2610 mono_mb_emit_ldarg_addr (mb, 0);
2611 mono_mb_emit_byte (mb, CEE_STIND_I);
2612 /* tmp = tmp + sizeof (gpointer) */
2613 if (sig->param_count)
2614 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2618 for (i = 0; i < sig->param_count; i++) {
2619 mono_mb_emit_ldloc (mb, tmp_var);
2620 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2621 mono_mb_emit_byte (mb, CEE_STIND_I);
2622 /* tmp = tmp + sizeof (gpointer) */
2623 if (i < (sig->param_count - 1))
2624 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2631 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2635 GString *res = g_string_new ("");
2638 g_string_append (res, prefix);
2639 g_string_append_c (res, '_');
2642 mono_type_get_desc (res, sig->ret, FALSE);
2645 g_string_append (res, "__this__");
2647 for (i = 0; i < sig->param_count; ++i) {
2648 g_string_append_c (res, '_');
2649 mono_type_get_desc (res, sig->params [i], FALSE);
2652 g_string_free (res, FALSE);
2657 * mono_marshal_get_string_encoding:
2659 * Return the string encoding which should be used for a given parameter.
2661 static MonoMarshalNative
2662 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2664 /* First try the parameter marshal info */
2666 if (spec->native == MONO_NATIVE_LPARRAY) {
2667 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2668 return spec->data.array_data.elem_type;
2671 return spec->native;
2675 return MONO_NATIVE_LPSTR;
2677 /* Then try the method level marshal info */
2678 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2679 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2680 return MONO_NATIVE_LPSTR;
2681 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2682 return MONO_NATIVE_LPWSTR;
2683 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2684 #ifdef PLATFORM_WIN32
2685 return MONO_NATIVE_LPWSTR;
2687 return MONO_NATIVE_LPSTR;
2690 return MONO_NATIVE_LPSTR;
2694 static MonoMarshalConv
2695 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2697 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2700 case MONO_NATIVE_LPWSTR:
2701 return MONO_MARSHAL_CONV_STR_LPWSTR;
2702 case MONO_NATIVE_LPSTR:
2703 return MONO_MARSHAL_CONV_STR_LPSTR;
2704 case MONO_NATIVE_LPTSTR:
2705 return MONO_MARSHAL_CONV_STR_LPTSTR;
2706 case MONO_NATIVE_BSTR:
2707 return MONO_MARSHAL_CONV_STR_BSTR;
2713 static MonoMarshalConv
2714 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2716 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2719 case MONO_NATIVE_LPWSTR:
2720 return MONO_MARSHAL_CONV_SB_LPWSTR;
2722 case MONO_NATIVE_LPSTR:
2723 return MONO_MARSHAL_CONV_SB_LPSTR;
2725 case MONO_NATIVE_LPTSTR:
2726 return MONO_MARSHAL_CONV_SB_LPTSTR;
2733 static MonoMarshalConv
2734 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2736 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2741 case MONO_NATIVE_LPWSTR:
2743 return MONO_MARSHAL_CONV_LPWSTR_STR;
2744 case MONO_NATIVE_LPSTR:
2745 return MONO_MARSHAL_CONV_LPSTR_STR;
2746 case MONO_NATIVE_LPTSTR:
2747 return MONO_MARSHAL_CONV_LPTSTR_STR;
2748 case MONO_NATIVE_BSTR:
2749 return MONO_MARSHAL_CONV_BSTR_STR;
2755 static MonoMarshalConv
2756 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2758 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2763 case MONO_NATIVE_LPWSTR:
2765 * mono_string_builder_to_utf16 does not allocate a
2766 * new buffer, so no need to free it.
2769 return MONO_MARSHAL_CONV_LPWSTR_SB;
2770 case MONO_NATIVE_LPSTR:
2771 return MONO_MARSHAL_CONV_LPSTR_SB;
2773 case MONO_NATIVE_LPTSTR:
2774 return MONO_MARSHAL_CONV_LPTSTR_SB;
2782 * Return whenever a field of a native structure or an array member needs to
2786 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2788 MonoMarshalNative encoding;
2789 MonoMarshalConv conv;
2792 case MONO_TYPE_VALUETYPE:
2793 /* FIXME: Optimize this */
2795 case MONO_TYPE_OBJECT:
2796 case MONO_TYPE_CLASS:
2797 if (t->data.klass == mono_defaults.stringbuilder_class) {
2799 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2803 case MONO_TYPE_STRING:
2804 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2805 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2812 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2815 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2818 mono_marshal_lock ();
2821 g_hash_table_new (hash_func, equal_func);
2822 mono_memory_barrier ();
2825 mono_marshal_unlock ();
2830 static inline MonoMethod*
2831 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2835 mono_marshal_lock ();
2836 res = g_hash_table_lookup (cache, key);
2837 mono_marshal_unlock ();
2842 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2846 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2849 datav = ((MonoMethodWrapper *)method)->method_data;
2853 /* Create the method from the builder and place it in the cache */
2854 static inline MonoMethod*
2855 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2856 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2861 mono_marshal_lock ();
2862 res = g_hash_table_lookup (cache, key);
2863 mono_marshal_unlock ();
2866 newm = mono_mb_create_method (mb, sig, max_stack);
2867 mono_marshal_lock ();
2868 res = g_hash_table_lookup (cache, key);
2871 g_hash_table_insert (cache, key, res);
2872 mono_marshal_method_set_wrapper_data (res, key);
2873 mono_marshal_unlock ();
2875 mono_marshal_unlock ();
2876 mono_free_method (newm);
2884 static inline MonoMethod*
2885 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2887 MonoMethod *res = NULL;
2888 MonoRemotingMethods *wrps;
2890 mono_marshal_lock ();
2891 if (method->klass->image->remoting_invoke_cache)
2892 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2897 switch (wrapper_type) {
2898 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2899 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2900 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2901 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2905 /* it is important to do the unlock after the load from wrps, since in
2906 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2907 * to take the loader lock and some other thread may set the fields.
2909 mono_marshal_unlock ();
2913 /* Create the method from the builder and place it in the cache */
2914 static inline MonoMethod*
2915 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2916 MonoMethodSignature *sig, int max_stack)
2918 MonoMethod **res = NULL;
2919 MonoRemotingMethods *wrps;
2920 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2922 mono_marshal_lock ();
2923 wrps = g_hash_table_lookup (cache, key);
2925 wrps = g_new0 (MonoRemotingMethods, 1);
2926 g_hash_table_insert (cache, key, wrps);
2929 switch (mb->method->wrapper_type) {
2930 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2931 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2932 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2933 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2934 default: g_assert_not_reached (); break;
2936 mono_marshal_unlock ();
2940 newm = mono_mb_create_method (mb, sig, max_stack);
2942 mono_marshal_lock ();
2945 mono_marshal_method_set_wrapper_data (*res, key);
2946 mono_marshal_unlock ();
2948 mono_marshal_unlock ();
2949 mono_free_method (newm);
2957 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2961 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2964 res = mono_method_get_wrapper_data (wrapper, 1);
2971 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2973 MonoMethodSignature *sig;
2974 MonoMethodBuilder *mb;
2980 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2981 !strcmp (method->name, "BeginInvoke"));
2983 sig = mono_signature_no_pinvoke (method);
2985 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2986 (GHashFunc)mono_signature_hash,
2987 (GCompareFunc)mono_metadata_signature_equal);
2988 if ((res = mono_marshal_find_in_cache (cache, sig)))
2991 g_assert (sig->hasthis);
2993 name = mono_signature_to_name (sig, "begin_invoke");
2994 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2997 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2999 mono_mb_emit_ldarg (mb, 0);
3000 mono_mb_emit_ldloc (mb, params_var);
3001 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3002 mono_mb_emit_byte (mb, CEE_RET);
3004 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3010 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3012 MonoDomain *domain = mono_domain_get ();
3013 MonoAsyncResult *ares;
3014 MonoMethod *method = NULL;
3015 MonoMethodSignature *sig;
3016 MonoMethodMessage *msg;
3017 MonoObject *res, *exc;
3018 MonoArray *out_args;
3021 g_assert (delegate);
3023 if (!delegate->method_info) {
3024 g_assert (delegate->method);
3025 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
3028 if (!delegate->method_info || !delegate->method_info->method)
3029 g_assert_not_reached ();
3031 klass = delegate->object.vtable->klass;
3033 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3034 g_assert (method != NULL);
3036 sig = mono_signature_no_pinvoke (method);
3038 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3040 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
3042 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
3044 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
3045 mono_raise_exception (mono_get_exception_invalid_operation (
3046 "The IAsyncResult object provided does not match this delegate."));
3050 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
3051 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3052 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
3053 mono_message_init (domain, msg, delegate->method_info, NULL);
3054 msg->call_type = CallType_EndInvoke;
3055 MONO_OBJECT_SETREF (msg, async_result, ares);
3056 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
3058 res = mono_thread_pool_finish (ares, &out_args, &exc);
3062 if (((MonoException*)exc)->stack_trace) {
3063 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3065 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3067 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3070 mono_raise_exception ((MonoException*)exc);
3073 mono_method_return_message_restore (method, params, out_args);
3078 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3080 MonoType *t = mono_type_get_underlying_type (return_type);
3082 if (return_type->byref)
3083 return_type = &mono_defaults.int_class->byval_arg;
3086 case MONO_TYPE_VOID:
3087 g_assert_not_reached ();
3090 case MONO_TYPE_STRING:
3091 case MONO_TYPE_CLASS:
3092 case MONO_TYPE_OBJECT:
3093 case MONO_TYPE_ARRAY:
3094 case MONO_TYPE_SZARRAY:
3098 case MONO_TYPE_BOOLEAN:
3101 case MONO_TYPE_CHAR:
3111 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3112 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3114 case MONO_TYPE_GENERICINST:
3115 if (!mono_type_generic_inst_is_valuetype (return_type))
3118 case MONO_TYPE_VALUETYPE: {
3119 MonoClass *klass = mono_class_from_mono_type (return_type);
3120 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3121 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3125 g_warning ("type 0x%x not handled", return_type->type);
3126 g_assert_not_reached ();
3129 mono_mb_emit_byte (mb, CEE_RET);
3133 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3135 MonoMethodSignature *sig;
3136 MonoMethodBuilder *mb;
3142 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3143 !strcmp (method->name, "EndInvoke"));
3145 sig = mono_signature_no_pinvoke (method);
3147 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
3148 (GHashFunc)mono_signature_hash,
3149 (GCompareFunc)mono_metadata_signature_equal);
3150 if ((res = mono_marshal_find_in_cache (cache, sig)))
3153 g_assert (sig->hasthis);
3155 name = mono_signature_to_name (sig, "end_invoke");
3156 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3159 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3161 mono_mb_emit_ldarg (mb, 0);
3162 mono_mb_emit_ldloc (mb, params_var);
3163 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3165 if (sig->ret->type == MONO_TYPE_VOID) {
3166 mono_mb_emit_byte (mb, CEE_POP);
3167 mono_mb_emit_byte (mb, CEE_RET);
3169 mono_mb_emit_restore_result (mb, sig->ret);
3171 res = mono_mb_create_and_cache (cache, sig,
3172 mb, sig, sig->param_count + 16);
3179 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3181 MonoMethodMessage *msg;
3182 MonoTransparentProxy *this;
3183 MonoObject *res, *exc;
3184 MonoArray *out_args;
3186 this = *((MonoTransparentProxy **)params [0]);
3189 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3191 /* skip the this pointer */
3194 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3197 MonoMethodSignature *sig = mono_method_signature (method);
3198 int count = sig->param_count;
3199 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3201 for (i=0; i<count; i++) {
3202 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3203 if (class->valuetype) {
3204 if (sig->params [i]->byref) {
3205 mparams[i] = *((gpointer *)params [i]);
3207 /* runtime_invoke expects a boxed instance */
3208 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
3209 mparams[i] = mono_nullable_box (params [i], class);
3211 mparams[i] = params [i];
3214 mparams[i] = *((gpointer**)params [i]);
3218 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3221 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3223 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3226 mono_raise_exception ((MonoException *)exc);
3228 mono_method_return_message_restore (method, params, out_args);
3236 * cominterop_get_native_wrapper_adjusted:
3237 * @method: managed COM Interop method
3239 * Returns: the generated method to call with signature matching
3240 * the unmanaged COM Method signature
3243 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3246 MonoMethodBuilder *mb_native;
3247 MonoMarshalSpec **mspecs;
3248 MonoMethodSignature *sig, *sig_native;
3249 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3252 sig = mono_method_signature (method);
3254 // create unmanaged wrapper
3255 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3256 sig_native = cominterop_method_signature (method);
3258 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3259 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3261 mono_method_get_marshal_info (method, mspecs);
3263 // move managed args up one
3264 for (i = sig->param_count; i >= 1; i--)
3265 mspecs[i+1] = mspecs[i];
3267 // first arg is IntPtr for interface
3270 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3271 // move return spec to last param
3272 if (!MONO_TYPE_IS_VOID (sig->ret))
3273 mspecs[sig_native->param_count] = mspecs[0];
3278 for (i = 1; i < sig_native->param_count; i++) {
3279 int mspec_index = i + 1;
3280 if (mspecs[mspec_index] == NULL) {
3281 // default object to VARIANT
3282 if (sig_native->params[i]->type == MONO_TYPE_OBJECT) {
3283 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3284 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
3286 else if (sig_native->params[i]->type == MONO_TYPE_STRING) {
3287 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3288 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
3290 else if (sig_native->params[i]->type == MONO_TYPE_CLASS) {
3291 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3292 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
3297 if (method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG) {
3298 // move return spec to last param
3299 if (!MONO_TYPE_IS_VOID (sig->ret) && mspecs[0] == NULL) {
3300 // default object to VARIANT
3301 if (sig->ret->type == MONO_TYPE_OBJECT) {
3302 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3303 mspecs[0]->native = MONO_NATIVE_STRUCT;
3305 else if (sig->ret->type == MONO_TYPE_STRING) {
3306 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3307 mspecs[0]->native = MONO_NATIVE_BSTR;
3309 else if (sig->ret->type == MONO_TYPE_CLASS) {
3310 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3311 mspecs[0]->native = MONO_NATIVE_INTERFACE;
3316 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, FALSE, TRUE);
3318 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3320 mono_mb_free (mb_native);
3322 for (i = sig_native->param_count; i >= 0; i--)
3324 mono_metadata_free_marshal_spec (mspecs [i]);
3331 * cominterop_get_native_wrapper:
3332 * @method: managed method
3334 * Returns: the generated method to call
3337 cominterop_get_native_wrapper (MonoMethod *method)
3341 MonoMethodBuilder *mb;
3342 MonoMethodSignature *sig, *csig;
3346 cache = get_cache (&method->klass->image->cominterop_wrapper_cache, mono_aligned_addr_hash, NULL);
3347 if ((res = mono_marshal_find_in_cache (cache, method)))
3350 mono_init_com_types ();
3352 if (!method->klass->vtable)
3353 mono_class_setup_vtable (method->klass);
3355 if (!method->klass->methods)
3356 mono_class_setup_methods (method->klass);
3358 sig = mono_method_signature (method);
3359 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3361 /* if method klass is import, that means method
3362 * is really a com call. let interop system emit it.
3364 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3365 /* FIXME: we have to call actual class .ctor
3366 * instead of just __ComObject .ctor.
3368 if (!strcmp(method->name, ".ctor")) {
3369 static MonoMethod *ctor = NULL;
3372 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3373 mono_mb_emit_ldarg (mb, 0);
3374 mono_mb_emit_managed_call (mb, ctor, NULL);
3375 mono_mb_emit_byte (mb, CEE_RET);
3378 static MonoMethod * ThrowExceptionForHR = NULL;
3379 MonoMethod *adjusted_method;
3383 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3385 // add local variables
3386 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3387 if (!MONO_TYPE_IS_VOID (sig->ret))
3388 retval = mono_mb_add_local (mb, sig->ret);
3390 // get the type for the interface the method is defined on
3391 // and then get the underlying COM interface for that type
3392 mono_mb_emit_ldarg (mb, 0);
3393 mono_mb_emit_ptr (mb, method);
3394 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3395 mono_mb_emit_icon (mb, TRUE);
3396 mono_mb_emit_icall (mb, cominterop_get_interface);
3397 mono_mb_emit_stloc (mb, ptr_this);
3399 // arg 1 is unmanaged this pointer
3400 mono_mb_emit_ldloc (mb, ptr_this);
3403 for (i = 1; i <= sig->param_count; i++)
3404 mono_mb_emit_ldarg (mb, i);
3406 // push managed return value as byref last argument
3407 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3408 mono_mb_emit_ldloc_addr (mb, retval);
3410 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3411 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3413 if (!preserve_sig) {
3414 if (!ThrowExceptionForHR)
3415 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3416 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3418 // load return value managed is expecting
3419 if (!MONO_TYPE_IS_VOID (sig->ret))
3420 mono_mb_emit_ldloc (mb, retval);
3423 mono_mb_emit_byte (mb, CEE_RET);
3428 /* Does this case ever get hit? */
3430 char *msg = g_strdup ("non imported interfaces on \
3431 imported classes is not yet implemented.");
3432 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3434 csig = signature_dup (method->klass->image, sig);
3436 res = mono_mb_create_and_cache (cache, method,
3437 mb, csig, csig->param_count + 16);
3443 * cominterop_get_invoke:
3444 * @method: managed method
3446 * Returns: the generated method that calls the underlying __ComObject
3447 * rather than the proxy object.
3450 cominterop_get_invoke (MonoMethod *method)
3452 MonoMethodSignature *sig;
3453 MonoMethodBuilder *mb;
3456 GHashTable* cache = get_cache (&method->klass->image->cominterop_invoke_cache, mono_aligned_addr_hash, NULL);
3460 if ((res = mono_marshal_find_in_cache (cache, method)))
3463 sig = mono_signature_no_pinvoke (method);
3465 /* we cant remote methods without this pointer */
3469 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3471 /* get real proxy object, which is a ComInteropProxy in this case*/
3472 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3473 mono_mb_emit_ldarg (mb, 0);
3474 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3475 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3477 /* load the RCW from the ComInteropProxy*/
3478 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3479 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3481 /* load args and make the call on the RCW */
3482 for (i = 1; i <= sig->param_count; i++)
3483 mono_mb_emit_ldarg (mb, i);
3485 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3486 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3487 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3490 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3491 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3493 mono_mb_emit_op (mb, CEE_CALL, method);
3496 if (!strcmp(method->name, ".ctor")) {
3497 static MonoClass *com_interop_proxy_class = NULL;
3498 static MonoMethod *cache_proxy = NULL;
3500 if (!com_interop_proxy_class)
3501 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3503 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3505 mono_mb_emit_ldarg (mb, 0);
3506 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3508 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3511 emit_thread_interrupt_checkpoint (mb);
3513 mono_mb_emit_byte (mb, CEE_RET);
3515 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3521 #endif /* DISABLE_COM */
3523 /* Maps a managed object to its unmanaged representation
3524 * i.e. it's COM Callable Wrapper (CCW).
3528 static GHashTable* ccw_hash = NULL;
3530 /* Maps a CCW interface to it's containing CCW.
3531 * Note that a CCW support many interfaces.
3533 * Value: MonoCCWInterface*
3535 static GHashTable* ccw_interface_hash = NULL;
3537 /* Maps the IUnknown value of a RCW to
3538 * it's MonoComInteropProxy*.
3542 static GHashTable* rcw_hash = NULL;
3545 mono_marshal_get_remoting_invoke (MonoMethod *method)
3547 MonoMethodSignature *sig;
3548 MonoMethodBuilder *mb;
3554 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3557 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3558 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
3560 return cominterop_get_invoke(method);
3562 g_assert_not_reached ();
3566 sig = mono_signature_no_pinvoke (method);
3568 /* we cant remote methods without this pointer */
3572 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3575 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3576 mb->method->save_lmf = 1;
3578 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3580 mono_mb_emit_ptr (mb, method);
3581 mono_mb_emit_ldloc (mb, params_var);
3582 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3583 emit_thread_interrupt_checkpoint (mb);
3585 if (sig->ret->type == MONO_TYPE_VOID) {
3586 mono_mb_emit_byte (mb, CEE_POP);
3587 mono_mb_emit_byte (mb, CEE_RET);
3589 mono_mb_emit_restore_result (mb, sig->ret);
3592 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3598 /* mono_get_xdomain_marshal_type()
3599 * Returns the kind of marshalling that a type needs for cross domain calls.
3601 static MonoXDomainMarshalType
3602 mono_get_xdomain_marshal_type (MonoType *t)
3605 case MONO_TYPE_VOID:
3606 g_assert_not_reached ();
3610 case MONO_TYPE_BOOLEAN:
3613 case MONO_TYPE_CHAR:
3620 return MONO_MARSHAL_NONE;
3621 case MONO_TYPE_STRING:
3622 return MONO_MARSHAL_COPY;
3623 case MONO_TYPE_ARRAY:
3624 case MONO_TYPE_SZARRAY: {
3625 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3626 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3627 return MONO_MARSHAL_COPY;
3632 return MONO_MARSHAL_SERIALIZE;
3636 /* mono_marshal_xdomain_copy_value
3637 * Makes a copy of "val" suitable for the current domain.
3640 mono_marshal_xdomain_copy_value (MonoObject *val)
3643 if (val == NULL) return NULL;
3645 domain = mono_domain_get ();
3647 switch (mono_object_class (val)->byval_arg.type) {
3648 case MONO_TYPE_VOID:
3649 g_assert_not_reached ();
3653 case MONO_TYPE_BOOLEAN:
3656 case MONO_TYPE_CHAR:
3662 case MONO_TYPE_R8: {
3663 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3665 case MONO_TYPE_STRING: {
3666 MonoString *str = (MonoString *) val;
3667 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3669 case MONO_TYPE_ARRAY:
3670 case MONO_TYPE_SZARRAY: {
3672 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3673 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3674 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3675 if (mt == MONO_MARSHAL_COPY) {
3676 int i, len = mono_array_length (acopy);
3677 for (i = 0; i < len; i++) {
3678 MonoObject *item = mono_array_get (acopy, gpointer, i);
3679 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3682 return (MonoObject *) acopy;
3686 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3687 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3688 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3689 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3690 newsb->length = oldsb->length;
3691 newsb->max_capacity = (gint32)0x7fffffff;
3692 return (MonoObject *) newsb;
3697 /* mono_marshal_xdomain_copy_out_value()
3698 * Copies the contents of the src instance into the dst instance. src and dst
3699 * must have the same type, and if they are arrays, the same size.
3702 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3704 if (src == NULL || dst == NULL) return;
3706 g_assert (mono_object_class (src) == mono_object_class (dst));
3708 switch (mono_object_class (src)->byval_arg.type) {
3709 case MONO_TYPE_ARRAY:
3710 case MONO_TYPE_SZARRAY: {
3711 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3712 if (mt == MONO_MARSHAL_SERIALIZE) return;
3713 if (mt == MONO_MARSHAL_COPY) {
3714 int i, len = mono_array_length ((MonoArray *)dst);
3715 for (i = 0; i < len; i++) {
3716 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3717 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3720 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3726 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3727 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3728 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3730 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)));
3731 dst_sb->cached_str = NULL;
3732 dst_sb->length = src_sb->length;
3737 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3739 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3740 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3744 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3746 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3749 /* mono_marshal_supports_fast_xdomain()
3750 * Returns TRUE if the method can use the fast xdomain wrapper.
3753 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3755 return !method->klass->contextbound &&
3756 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3760 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3762 MonoDomain *current_domain = mono_domain_get ();
3763 MonoDomain *domain = mono_domain_get_by_id (id);
3765 if (!domain || !mono_domain_set (domain, FALSE))
3766 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3769 mono_thread_push_appdomain_ref (domain);
3771 mono_thread_pop_appdomain_ref ();
3773 return current_domain->domain_id;
3777 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3779 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3782 /* mono_marshal_emit_load_domain_method ()
3783 * Loads into the stack a pointer to the code of the provided method for
3784 * the current domain.
3787 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3789 /* We need a pointer to the method for the running domain (not the domain
3790 * that compiles the method).
3792 mono_mb_emit_ptr (mb, method);
3793 mono_mb_emit_icall (mb, mono_compile_method);
3796 /* mono_marshal_check_domain_image ()
3797 * Returns TRUE if the image is loaded in the specified
3798 * application domain.
3801 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3806 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3810 mono_domain_assemblies_lock (domain);
3811 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3813 if (ass->image == image)
3816 mono_domain_assemblies_unlock (domain);
3821 /* mono_marshal_get_xappdomain_dispatch ()
3822 * Generates a method that dispatches a method call from another domain into
3823 * the current domain.
3826 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3828 MonoMethodSignature *sig, *csig;
3829 MonoMethodBuilder *mb;
3831 int i, j, param_index, copy_locals_base;
3832 MonoClass *ret_class = NULL;
3833 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3834 MonoExceptionClause *main_clause;
3835 MonoMethodHeader *header;
3837 gboolean copy_return;
3839 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3842 sig = mono_method_signature (method);
3843 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3846 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3847 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3848 csig->params [j++] = &byte_array_class->this_arg;
3849 csig->params [j++] = &byte_array_class->this_arg;
3850 for (i = 0; i < sig->param_count; i++) {
3851 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3852 csig->params [j++] = sig->params [i];
3855 csig->ret = sig->ret;
3857 csig->ret = &mono_defaults.void_class->byval_arg;
3859 csig->hasthis = FALSE;
3861 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3862 mb->method->save_lmf = 1;
3866 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3867 if (complex_count > 0)
3868 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3869 if (sig->ret->type != MONO_TYPE_VOID) {
3870 loc_return = mono_mb_add_local (mb, sig->ret);
3871 ret_class = mono_class_from_mono_type (sig->ret);
3876 mono_loader_lock ();
3877 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3878 mono_loader_unlock ();
3879 main_clause->try_offset = mono_mb_get_label (mb);
3881 /* Clean the call context */
3883 mono_mb_emit_byte (mb, CEE_LDNULL);
3884 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3885 mono_mb_emit_byte (mb, CEE_POP);
3887 /* Deserialize call data */
3889 mono_mb_emit_ldarg (mb, 1);
3890 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3891 mono_mb_emit_byte (mb, CEE_DUP);
3892 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3894 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3895 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3897 if (complex_count > 0)
3898 mono_mb_emit_stloc (mb, loc_array);
3900 mono_mb_emit_byte (mb, CEE_POP);
3902 mono_mb_patch_short_branch (mb, pos);
3904 /* Get the target object */
3906 mono_mb_emit_ldarg (mb, 0);
3907 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3909 /* Load the arguments */
3911 copy_locals_base = mb->locals;
3912 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3914 for (i = 0; i < sig->param_count; i++) {
3915 MonoType *pt = sig->params [i];
3916 MonoClass *pclass = mono_class_from_mono_type (pt);
3917 switch (marshal_types [i]) {
3918 case MONO_MARSHAL_SERIALIZE: {
3919 /* take the value from the serialized array */
3920 mono_mb_emit_ldloc (mb, loc_array);
3921 mono_mb_emit_icon (mb, j++);
3923 if (pclass->valuetype) {
3924 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3925 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3927 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3930 if (pclass->valuetype) {
3931 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3932 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3933 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3935 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3936 if (pclass != mono_defaults.object_class) {
3937 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3943 case MONO_MARSHAL_COPY_OUT: {
3944 /* Keep a local copy of the value since we need to copy it back after the call */
3945 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3946 mono_mb_emit_ldarg (mb, param_index++);
3947 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3948 mono_mb_emit_byte (mb, CEE_DUP);
3949 mono_mb_emit_stloc (mb, copy_local);
3952 case MONO_MARSHAL_COPY: {
3953 mono_mb_emit_ldarg (mb, param_index);
3955 mono_mb_emit_byte (mb, CEE_DUP);
3956 mono_mb_emit_byte (mb, CEE_DUP);
3957 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3958 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3959 mono_mb_emit_byte (mb, CEE_STIND_REF);
3961 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3966 case MONO_MARSHAL_NONE:
3967 mono_mb_emit_ldarg (mb, param_index++);
3972 /* Make the call to the real object */
3974 emit_thread_force_interrupt_checkpoint (mb);
3976 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3978 if (sig->ret->type != MONO_TYPE_VOID)
3979 mono_mb_emit_stloc (mb, loc_return);
3981 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3985 for (i = 0; i < sig->param_count; i++) {
3986 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3987 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3988 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3989 mono_mb_emit_ldarg (mb, param_index);
3990 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3995 /* Serialize the return values */
3997 if (complex_out_count > 0) {
3998 /* Reset parameters in the array that don't need to be serialized back */
4000 for (i = 0; i < sig->param_count; i++) {
4001 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
4002 if (!sig->params [i]->byref) {
4003 mono_mb_emit_ldloc (mb, loc_array);
4004 mono_mb_emit_icon (mb, j);
4005 mono_mb_emit_byte (mb, CEE_LDNULL);
4006 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4011 /* Add the return value to the array */
4013 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4014 mono_mb_emit_ldloc (mb, loc_array);
4015 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
4016 mono_mb_emit_ldloc (mb, loc_return);
4017 if (ret_class->valuetype) {
4018 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4020 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4025 mono_mb_emit_ldarg (mb, 1);
4026 mono_mb_emit_ldloc (mb, loc_array);
4027 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4028 mono_mb_emit_byte (mb, CEE_STIND_REF);
4029 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4030 mono_mb_emit_ldarg (mb, 1);
4031 mono_mb_emit_ldloc (mb, loc_return);
4032 if (ret_class->valuetype) {
4033 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4035 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4036 mono_mb_emit_byte (mb, CEE_STIND_REF);
4038 mono_mb_emit_ldarg (mb, 1);
4039 mono_mb_emit_byte (mb, CEE_LDNULL);
4040 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4041 mono_mb_emit_byte (mb, CEE_STIND_REF);
4044 mono_mb_emit_ldarg (mb, 2);
4045 mono_mb_emit_byte (mb, CEE_LDNULL);
4046 mono_mb_emit_byte (mb, CEE_STIND_REF);
4047 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
4049 /* Main exception catch */
4050 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4051 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
4052 main_clause->data.catch_class = mono_defaults.object_class;
4055 main_clause->handler_offset = mono_mb_get_label (mb);
4056 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
4057 mono_mb_emit_stloc (mb, loc_serialized_exc);
4058 mono_mb_emit_ldarg (mb, 2);
4059 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4060 mono_mb_emit_byte (mb, CEE_STIND_REF);
4061 mono_mb_emit_branch (mb, CEE_LEAVE);
4062 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
4065 mono_mb_patch_branch (mb, pos_leave);
4068 mono_mb_emit_ldloc (mb, loc_return);
4070 mono_mb_emit_byte (mb, CEE_RET);
4072 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
4075 header = ((MonoMethodNormal *)res)->header;
4076 header->num_clauses = 1;
4077 header->clauses = main_clause;
4082 /* mono_marshal_get_xappdomain_invoke ()
4083 * Generates a fast remoting wrapper for cross app domain calls.
4086 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
4088 MonoMethodSignature *sig;
4089 MonoMethodBuilder *mb;
4091 int i, j, complex_count, complex_out_count, copy_locals_base;
4093 MonoClass *ret_class = NULL;
4094 MonoMethod *xdomain_method;
4095 int ret_marshal_type = MONO_MARSHAL_NONE;
4096 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
4097 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
4098 int pos, pos_dispatch, pos_noex;
4099 gboolean copy_return = FALSE;
4103 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
4106 /* we cant remote methods without this pointer */
4107 if (!mono_method_signature (method)->hasthis)
4110 if (!mono_marshal_supports_fast_xdomain (method))
4111 return mono_marshal_get_remoting_invoke (method);
4113 mono_remoting_marshal_init ();
4115 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
4118 sig = mono_signature_no_pinvoke (method);
4120 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
4121 mb->method->save_lmf = 1;
4123 /* Count the number of parameters that need to be serialized */
4125 marshal_types = alloca (sizeof (int) * sig->param_count);
4126 complex_count = complex_out_count = 0;
4127 for (i = 0; i < sig->param_count; i++) {
4128 MonoType *ptype = sig->params[i];
4129 int mt = mono_get_xdomain_marshal_type (ptype);
4131 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4132 * the copy will be made by reusing the original object instance
4134 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4135 mt = MONO_MARSHAL_COPY_OUT;
4136 else if (mt == MONO_MARSHAL_SERIALIZE) {
4138 if (ptype->byref) complex_out_count++;
4140 marshal_types [i] = mt;
4143 if (sig->ret->type != MONO_TYPE_VOID) {
4144 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4145 ret_class = mono_class_from_mono_type (sig->ret);
4146 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4151 if (complex_count > 0)
4152 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4153 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4154 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4156 loc_return = mono_mb_add_local (mb, sig->ret);
4157 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4158 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4159 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4160 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4162 /* Save thread domain data */
4164 mono_mb_emit_icall (mb, mono_context_get);
4165 mono_mb_emit_byte (mb, CEE_DUP);
4166 mono_mb_emit_stloc (mb, loc_context);
4168 /* If the thread is not running in the default context, it needs to go
4169 * through the whole remoting sink, since the context is going to change
4171 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4172 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4174 /* Another case in which the fast path can't be used: when the target domain
4175 * has a different image for the same assembly.
4178 /* Get the target domain id */
4180 mono_mb_emit_ldarg (mb, 0);
4181 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4182 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4183 mono_mb_emit_byte (mb, CEE_DUP);
4184 mono_mb_emit_stloc (mb, loc_real_proxy);
4186 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4187 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4188 mono_mb_emit_stloc (mb, loc_domainid);
4190 /* Check if the target domain has the same image for the required assembly */
4192 mono_mb_emit_ldloc (mb, loc_domainid);
4193 mono_mb_emit_ptr (mb, method->klass->image);
4194 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4195 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4197 /* Use the whole remoting sink to dispatch this message */
4199 mono_mb_patch_short_branch (mb, pos);
4201 mono_mb_emit_ldarg (mb, 0);
4202 for (i = 0; i < sig->param_count; i++)
4203 mono_mb_emit_ldarg (mb, i + 1);
4205 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4206 mono_mb_emit_byte (mb, CEE_RET);
4207 mono_mb_patch_short_branch (mb, pos_dispatch);
4209 /* Create the array that will hold the parameters to be serialized */
4211 if (complex_count > 0) {
4212 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 */
4213 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4216 for (i = 0; i < sig->param_count; i++) {
4218 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4219 pclass = mono_class_from_mono_type (sig->params[i]);
4220 mono_mb_emit_byte (mb, CEE_DUP);
4221 mono_mb_emit_icon (mb, j);
4222 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4223 if (sig->params[i]->byref) {
4224 if (pclass->valuetype)
4225 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4227 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4229 if (pclass->valuetype)
4230 mono_mb_emit_op (mb, CEE_BOX, pclass);
4231 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4234 mono_mb_emit_stloc (mb, loc_array);
4236 /* Serialize parameters */
4238 mono_mb_emit_ldloc (mb, loc_array);
4239 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4240 mono_mb_emit_stloc (mb, loc_serialized_data);
4242 mono_mb_emit_byte (mb, CEE_LDNULL);
4243 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4244 mono_mb_emit_stloc (mb, loc_serialized_data);
4249 mono_mb_emit_ldloc (mb, loc_domainid);
4250 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4251 mono_marshal_emit_switch_domain (mb);
4252 mono_mb_emit_stloc (mb, loc_old_domainid);
4254 /* Load the arguments */
4256 mono_mb_emit_ldloc (mb, loc_real_proxy);
4257 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4258 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4260 copy_locals_base = mb->locals;
4261 for (i = 0; i < sig->param_count; i++) {
4262 switch (marshal_types [i]) {
4263 case MONO_MARSHAL_SERIALIZE:
4265 case MONO_MARSHAL_COPY: {
4266 mono_mb_emit_ldarg (mb, i+1);
4267 if (sig->params [i]->byref) {
4268 /* make a local copy of the byref parameter. The real parameter
4269 * will be updated after the xdomain call
4271 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4272 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4273 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4274 mono_mb_emit_stloc (mb, copy_local);
4275 mono_mb_emit_ldloc_addr (mb, copy_local);
4279 case MONO_MARSHAL_COPY_OUT:
4280 case MONO_MARSHAL_NONE:
4281 mono_mb_emit_ldarg (mb, i+1);
4286 /* Make the call to the invoke wrapper in the target domain */
4288 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4289 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4290 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4293 mono_mb_emit_stloc (mb, loc_return);
4297 mono_mb_emit_ldloc (mb, loc_old_domainid);
4298 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4299 mono_marshal_emit_switch_domain (mb);
4300 mono_mb_emit_byte (mb, CEE_POP);
4302 /* Restore thread domain data */
4304 mono_mb_emit_ldloc (mb, loc_context);
4305 mono_mb_emit_icall (mb, mono_context_set);
4307 /* if (loc_serialized_exc != null) ... */
4309 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4310 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4312 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4313 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4314 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4315 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4316 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4317 mono_mb_emit_byte (mb, CEE_THROW);
4318 mono_mb_patch_short_branch (mb, pos_noex);
4320 /* copy back non-serialized output parameters */
4323 for (i = 0; i < sig->param_count; i++) {
4324 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4325 mono_mb_emit_ldarg (mb, i + 1);
4326 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4327 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4328 mono_mb_emit_byte (mb, CEE_STIND_REF);
4331 /* Deserialize out parameters */
4333 if (complex_out_count > 0) {
4334 mono_mb_emit_ldloc (mb, loc_serialized_data);
4335 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4336 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4337 mono_mb_emit_stloc (mb, loc_array);
4339 /* Copy back output parameters and return type */
4342 for (i = 0; i < sig->param_count; i++) {
4343 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4344 if (sig->params[i]->byref) {
4345 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4346 mono_mb_emit_ldarg (mb, i + 1);
4347 mono_mb_emit_ldloc (mb, loc_array);
4348 mono_mb_emit_icon (mb, j);
4349 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4350 if (pclass->valuetype) {
4351 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4352 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4353 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4355 if (pclass != mono_defaults.object_class)
4356 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4357 mono_mb_emit_byte (mb, CEE_STIND_REF);
4363 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4364 mono_mb_emit_ldloc (mb, loc_array);
4365 mono_mb_emit_icon (mb, complex_count);
4366 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4367 if (ret_class->valuetype) {
4368 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4369 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4372 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4373 mono_mb_emit_ldloc (mb, loc_serialized_data);
4374 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4375 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4376 if (ret_class->valuetype) {
4377 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4378 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4379 } else if (ret_class != mono_defaults.object_class) {
4380 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4383 mono_mb_emit_ldloc (mb, loc_serialized_data);
4384 mono_mb_emit_byte (mb, CEE_DUP);
4385 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4386 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4388 mono_mb_patch_short_branch (mb, pos);
4389 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4390 mono_mb_emit_byte (mb, CEE_POP);
4394 mono_mb_emit_ldloc (mb, loc_return);
4395 if (ret_marshal_type == MONO_MARSHAL_COPY)
4396 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4399 mono_mb_emit_byte (mb, CEE_RET);
4401 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4408 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4410 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
4411 return mono_marshal_get_xappdomain_invoke (method);
4412 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
4414 return cominterop_get_invoke (method);
4416 g_assert_not_reached ();
4419 return mono_marshal_get_remoting_invoke (method);
4423 G_GNUC_UNUSED static gpointer
4424 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4426 if (rp->target_domain_id != -1)
4427 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4429 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4433 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4435 MonoMethodSignature *sig;
4436 MonoMethodBuilder *mb;
4437 MonoMethod *res, *native;
4438 int i, pos, pos_rem;
4442 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4445 /* we cant remote methods without this pointer */
4446 g_assert (mono_method_signature (method)->hasthis);
4448 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4451 sig = mono_signature_no_pinvoke (method);
4453 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4455 for (i = 0; i <= sig->param_count; i++)
4456 mono_mb_emit_ldarg (mb, i);
4458 mono_mb_emit_ldarg (mb, 0);
4459 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4461 if (mono_marshal_supports_fast_xdomain (method)) {
4462 mono_mb_emit_ldarg (mb, 0);
4463 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4465 /* wrapper for cross app domain calls */
4466 native = mono_marshal_get_xappdomain_invoke (method);
4467 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4468 mono_mb_emit_byte (mb, CEE_RET);
4470 mono_mb_patch_branch (mb, pos_rem);
4472 /* wrapper for normal remote calls */
4473 native = mono_marshal_get_remoting_invoke (method);
4474 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4475 mono_mb_emit_byte (mb, CEE_RET);
4478 mono_mb_patch_branch (mb, pos);
4479 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4480 mono_mb_emit_byte (mb, CEE_RET);
4482 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4490 MonoMethodSignature *sig;
4492 } SignatureMethodPair;
4495 signature_method_pair_hash (gconstpointer data)
4497 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4499 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4503 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4505 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4509 free_signature_method_pair (SignatureMethodPair *pair)
4515 * the returned method invokes all methods in a multicast delegate.
4518 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4520 MonoMethodSignature *sig, *static_sig;
4522 MonoMethodBuilder *mb;
4523 MonoMethod *res, *newm;
4525 SignatureMethodPair key;
4526 SignatureMethodPair *new_key;
4527 int local_prev, local_target;
4530 MonoMethod *target_method = NULL;
4531 MonoClass *target_class = NULL;
4532 gboolean callvirt = FALSE;
4535 * If the delegate target is null, and the target method is not static, a virtual
4536 * call is made to that method with the first delegate argument as this. This is
4537 * a non-documented .NET feature.
4539 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4541 target_method = del->method;
4542 if (target_method->is_inflated) {
4543 MonoType *target_type;
4545 g_assert (method->signature->hasthis);
4546 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4547 mono_method_get_context (method));
4548 target_class = mono_class_from_mono_type (target_type);
4550 target_class = del->method->klass;
4554 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4555 !strcmp (method->name, "Invoke"));
4557 sig = mono_signature_no_pinvoke (method);
4560 /* We need to cache the signature+method pair */
4561 mono_marshal_lock ();
4562 if (!method->klass->image->delegate_abstract_invoke_cache)
4563 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);
4564 cache = method->klass->image->delegate_abstract_invoke_cache;
4566 key.method = target_method;
4567 res = g_hash_table_lookup (cache, &key);
4568 mono_marshal_unlock ();
4572 cache = get_cache (&method->klass->image->delegate_invoke_cache,
4573 (GHashFunc)mono_signature_hash,
4574 (GCompareFunc)mono_metadata_signature_equal);
4575 if ((res = mono_marshal_find_in_cache (cache, sig)))
4579 static_sig = signature_dup (method->klass->image, sig);
4580 static_sig->hasthis = 0;
4582 name = mono_signature_to_name (sig, "invoke");
4583 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
4586 /* allocate local 0 (object) */
4587 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4588 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4590 g_assert (sig->hasthis);
4594 * prev.Invoke( args .. );
4595 * return this.<target>( args .. );
4598 /* this wrapper can be used in unmanaged-managed transitions */
4599 emit_thread_interrupt_checkpoint (mb);
4601 /* get this->prev */
4602 mono_mb_emit_ldarg (mb, 0);
4603 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4605 mono_mb_emit_stloc (mb, local_prev);
4606 mono_mb_emit_ldloc (mb, local_prev);
4608 /* if prev != null */
4609 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4613 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4614 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4616 mono_mb_emit_ldloc (mb, local_prev);
4617 for (i = 0; i < sig->param_count; i++)
4618 mono_mb_emit_ldarg (mb, i + 1);
4619 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4620 if (sig->ret->type != MONO_TYPE_VOID)
4621 mono_mb_emit_byte (mb, CEE_POP);
4623 /* continued or prev == null */
4624 mono_mb_patch_branch (mb, pos0);
4626 /* get this->target */
4627 mono_mb_emit_ldarg (mb, 0);
4628 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4629 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4630 mono_mb_emit_stloc (mb, local_target);
4632 /* if target != null */
4633 mono_mb_emit_ldloc (mb, local_target);
4634 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4636 /* then call this->method_ptr nonstatic */
4639 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4641 mono_mb_emit_ldloc (mb, local_target);
4642 for (i = 0; i < sig->param_count; ++i)
4643 mono_mb_emit_ldarg (mb, i + 1);
4644 mono_mb_emit_ldarg (mb, 0);
4645 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4646 mono_mb_emit_byte (mb, CEE_LDIND_I );
4647 mono_mb_emit_op (mb, CEE_CALLI, sig);
4649 mono_mb_emit_byte (mb, CEE_RET);
4652 /* else [target == null] call this->method_ptr static */
4653 mono_mb_patch_branch (mb, pos0);
4656 mono_mb_emit_ldarg (mb, 1);
4657 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4658 for (i = 1; i < sig->param_count; ++i)
4659 mono_mb_emit_ldarg (mb, i + 1);
4660 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4662 for (i = 0; i < sig->param_count; ++i)
4663 mono_mb_emit_ldarg (mb, i + 1);
4664 mono_mb_emit_ldarg (mb, 0);
4665 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4666 mono_mb_emit_byte (mb, CEE_LDIND_I );
4667 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4670 mono_mb_emit_byte (mb, CEE_RET);
4673 // From mono_mb_create_and_cache
4674 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4675 newm->skip_visibility = 1;
4676 /*We perform double checked locking, so must fence before publishing*/
4677 mono_memory_barrier ();
4678 mono_marshal_lock ();
4679 res = g_hash_table_lookup (cache, &key);
4682 new_key = g_new0 (SignatureMethodPair, 1);
4684 new_key->method = target_method;
4685 g_hash_table_insert (cache, new_key, res);
4686 mono_marshal_method_set_wrapper_data (res, new_key);
4687 mono_marshal_unlock ();
4689 mono_marshal_unlock ();
4690 mono_free_method (newm);
4693 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4694 res->skip_visibility = 1;
4702 * signature_dup_add_this:
4704 * Make a copy of @sig, adding an explicit this argument.
4706 static MonoMethodSignature*
4707 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4709 MonoMethodSignature *res;
4712 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4713 memcpy (res, sig, sizeof (MonoMethodSignature));
4714 res->param_count = sig->param_count + 1;
4715 res->hasthis = FALSE;
4716 for (i = sig->param_count - 1; i >= 0; i --)
4717 res->params [i + 1] = sig->params [i];
4718 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4724 MonoMethodSignature *ctor_sig;
4725 MonoMethodSignature *sig;
4728 /* protected by the marshal lock, contains CtorSigPair pointers */
4729 static GSList *strsig_list = NULL;
4731 static MonoMethodSignature *
4732 lookup_string_ctor_signature (MonoMethodSignature *sig)
4734 MonoMethodSignature *callsig;
4738 mono_marshal_lock ();
4740 for (item = strsig_list; item; item = item->next) {
4742 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4743 * because it is lock-free.
4745 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4750 mono_marshal_unlock ();
4754 static MonoMethodSignature *
4755 add_string_ctor_signature (MonoMethod *method)
4757 MonoMethodSignature *callsig;
4760 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4761 callsig->ret = &mono_defaults.string_class->byval_arg;
4762 cs = g_new (CtorSigPair, 1);
4764 cs->ctor_sig = mono_method_signature (method);
4766 mono_marshal_lock ();
4767 strsig_list = g_slist_prepend (strsig_list, cs);
4768 mono_marshal_unlock ();
4773 get_runtime_invoke_type (MonoType *t)
4776 return &mono_defaults.int_class->byval_arg;
4780 return &mono_defaults.sbyte_class->byval_arg;
4782 return &mono_defaults.int16_class->byval_arg;
4784 return &mono_defaults.int32_class->byval_arg;
4786 return &mono_defaults.int64_class->byval_arg;
4787 case MONO_TYPE_BOOLEAN:
4788 return &mono_defaults.byte_class->byval_arg;
4789 case MONO_TYPE_CHAR:
4790 return &mono_defaults.int16_class->byval_arg;
4792 return &mono_defaults.int_class->byval_arg;
4793 case MONO_TYPE_VALUETYPE:
4794 if (t->data.klass->enumtype)
4795 return mono_type_get_underlying_type (t);
4799 if (MONO_TYPE_IS_REFERENCE (t))
4800 return &mono_defaults.object_class->byval_arg;
4806 * mono_marshal_get_runtime_invoke_sig:
4808 * Return a common signature used for sharing runtime invoke wrappers.
4810 static MonoMethodSignature*
4811 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4813 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4816 res->ret = get_runtime_invoke_type (sig->ret);
4817 for (i = 0; i < res->param_count; ++i)
4818 res->params [i] = get_runtime_invoke_type (sig->params [i]);
4824 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4826 /* Can't share wrappers which return a vtype since it needs to be boxed */
4827 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)))
4830 return mono_metadata_signature_equal (sig1, sig2);
4834 * generates IL code for the runtime invoke function
4835 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4837 * we also catch exceptions if exc != null
4840 mono_marshal_get_runtime_invoke (MonoMethod *method)
4842 MonoMethodSignature *sig, *csig, *callsig;
4843 MonoExceptionClause *clause;
4844 MonoMethodHeader *header;
4845 MonoMethodBuilder *mb;
4846 GHashTable *cache = NULL;
4847 MonoClass *target_klass;
4848 MonoMethod *res = NULL;
4849 static MonoString *string_dummy = NULL;
4850 static MonoMethodSignature *cctor_signature = NULL;
4851 static MonoMethodSignature *finalize_signature = NULL;
4854 gboolean need_direct_wrapper = FALSE;
4858 if (!cctor_signature) {
4859 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4860 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4862 if (!finalize_signature) {
4863 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4864 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4865 finalize_signature->hasthis = 1;
4869 * Use a separate cache indexed by methods to speed things up and to avoid the
4870 * boundless mempool growth caused by the signature_dup stuff below.
4872 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4873 res = mono_marshal_find_in_cache (cache, method);
4877 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4878 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4880 * Array Get/Set/Address methods. The JIT implements them using inline code
4881 * so we need to create an invoke wrapper which calls the method directly.
4883 need_direct_wrapper = TRUE;
4886 if (method->string_ctor) {
4887 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4889 callsig = add_string_ctor_signature (method);
4891 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4893 * Valuetype methods receive a managed pointer as the this argument.
4894 * Create a new signature to reflect this.
4896 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4898 if (method->dynamic)
4899 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4901 callsig = mono_method_signature (method);
4906 * We try to share runtime invoke wrappers between different methods but have to
4907 * be careful about methods whose klass has a type cctor, since putting the wrapper
4908 * into that klass would mean that calling a method of klass A might invoke the
4909 * type initializer of class B, or throw an exception if the type initializer
4910 * was called before and failed. See #349621 for an example.
4911 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4913 if (method->klass->image == mono_defaults.corlib)
4914 target_klass = mono_defaults.object_class;
4916 /* Try to share wrappers for non-corlib methods with simple signatures */
4917 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4918 callsig = cctor_signature;
4919 target_klass = mono_defaults.object_class;
4920 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4921 callsig = finalize_signature;
4922 target_klass = mono_defaults.object_class;
4924 // FIXME: This breaks too many things
4926 if (mono_class_get_cctor (method->klass))
4927 need_direct_wrapper = TRUE;
4931 * Can't put these wrappers into object, since they reference non-corlib
4932 * metadata (callsig).
4934 target_klass = method->klass;
4938 if (need_direct_wrapper) {
4939 /* Already searched at the start */
4941 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4943 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4944 (GHashFunc)mono_signature_hash,
4945 (GCompareFunc)runtime_invoke_signature_equal);
4947 /* from mono_marshal_find_in_cache */
4948 mono_marshal_lock ();
4949 res = g_hash_table_lookup (cache, callsig);
4950 mono_marshal_unlock ();
4957 // FIXME: When to free callsig ?
4960 /* to make it work with our special string constructors */
4961 if (!string_dummy) {
4962 MONO_GC_REGISTER_ROOT (string_dummy);
4963 string_dummy = mono_string_new_wrapper ("dummy");
4966 sig = mono_method_signature (method);
4968 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4970 csig->ret = &mono_defaults.object_class->byval_arg;
4971 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4972 csig->params [0] = callsig->params [0];
4974 csig->params [0] = &mono_defaults.object_class->byval_arg;
4975 csig->params [1] = &mono_defaults.int_class->byval_arg;
4976 csig->params [2] = &mono_defaults.int_class->byval_arg;
4977 csig->params [3] = &mono_defaults.int_class->byval_arg;
4979 name = mono_signature_to_name (callsig, "runtime_invoke");
4980 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4983 /* allocate local 0 (object) tmp */
4984 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4985 /* allocate local 1 (object) exc */
4986 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4988 /* cond set *exc to null */
4989 mono_mb_emit_byte (mb, CEE_LDARG_2);
4990 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4991 mono_mb_emit_byte (mb, 3);
4992 mono_mb_emit_byte (mb, CEE_LDARG_2);
4993 mono_mb_emit_byte (mb, CEE_LDNULL);
4994 mono_mb_emit_byte (mb, CEE_STIND_REF);
4996 emit_thread_force_interrupt_checkpoint (mb);
4999 if (method->string_ctor) {
5000 mono_mb_emit_ptr (mb, string_dummy);
5002 mono_mb_emit_ldarg (mb, 0);
5006 for (i = 0; i < sig->param_count; i++) {
5007 MonoType *t = sig->params [i];
5010 mono_mb_emit_ldarg (mb, 1);
5012 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
5013 mono_mb_emit_byte (mb, CEE_ADD);
5017 mono_mb_emit_byte (mb, CEE_LDIND_I);
5018 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
5019 * So to make this work we unbox it to a local variablee and push a reference to that.
5021 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
5022 int tmp_nullable_local = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
5024 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
5025 mono_mb_emit_stloc (mb, tmp_nullable_local);
5026 mono_mb_emit_ldloc_addr (mb, tmp_nullable_local);
5031 type = sig->params [i]->type;
5035 case MONO_TYPE_BOOLEAN:
5039 case MONO_TYPE_CHAR:
5048 mono_mb_emit_byte (mb, CEE_LDIND_I);
5049 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5051 case MONO_TYPE_STRING:
5052 case MONO_TYPE_CLASS:
5053 case MONO_TYPE_ARRAY:
5055 case MONO_TYPE_SZARRAY:
5056 case MONO_TYPE_OBJECT:
5057 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5059 case MONO_TYPE_GENERICINST:
5060 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
5061 mono_mb_emit_byte (mb, CEE_LDIND_I);
5066 case MONO_TYPE_VALUETYPE:
5067 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
5068 type = t->data.klass->enum_basetype->type;
5071 mono_mb_emit_byte (mb, CEE_LDIND_I);
5072 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
5073 /* Need to convert a boxed vtype to an mp to a Nullable struct */
5074 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
5075 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5077 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5081 g_assert_not_reached ();
5085 if (need_direct_wrapper) {
5086 mono_mb_emit_op (mb, CEE_CALL, method);
5088 mono_mb_emit_ldarg (mb, 3);
5089 mono_mb_emit_calli (mb, callsig);
5092 if (sig->ret->byref) {
5094 g_assert_not_reached ();
5098 switch (sig->ret->type) {
5099 case MONO_TYPE_VOID:
5100 if (!method->string_ctor)
5101 mono_mb_emit_byte (mb, CEE_LDNULL);
5103 case MONO_TYPE_BOOLEAN:
5104 case MONO_TYPE_CHAR:
5117 case MONO_TYPE_VALUETYPE:
5118 case MONO_TYPE_TYPEDBYREF:
5119 case MONO_TYPE_GENERICINST:
5120 /* box value types */
5121 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
5123 case MONO_TYPE_STRING:
5124 case MONO_TYPE_CLASS:
5125 case MONO_TYPE_ARRAY:
5126 case MONO_TYPE_SZARRAY:
5127 case MONO_TYPE_OBJECT:
5132 g_assert_not_reached ();
5135 mono_mb_emit_stloc (mb, 0);
5137 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5139 mono_loader_lock ();
5140 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
5141 mono_loader_unlock ();
5142 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5143 clause->try_len = mono_mb_get_label (mb);
5146 clause->data.filter_offset = mono_mb_get_label (mb);
5148 mono_mb_emit_byte (mb, CEE_POP);
5149 mono_mb_emit_byte (mb, CEE_LDARG_2);
5150 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5151 mono_mb_emit_byte (mb, CEE_PREFIX1);
5152 mono_mb_emit_byte (mb, CEE_CGT_UN);
5153 mono_mb_emit_byte (mb, CEE_PREFIX1);
5154 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5156 clause->handler_offset = mono_mb_get_label (mb);
5159 /* store exception */
5160 mono_mb_emit_stloc (mb, 1);
5162 mono_mb_emit_byte (mb, CEE_LDARG_2);
5163 mono_mb_emit_ldloc (mb, 1);
5164 mono_mb_emit_byte (mb, CEE_STIND_REF);
5166 mono_mb_emit_byte (mb, CEE_LDNULL);
5167 mono_mb_emit_stloc (mb, 0);
5169 /* Check for the abort exception */
5170 mono_mb_emit_ldloc (mb, 1);
5171 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5172 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5174 /* Delay the abort exception */
5175 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
5177 mono_mb_patch_short_branch (mb, posna);
5178 mono_mb_emit_branch (mb, CEE_LEAVE);
5180 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
5183 mono_mb_patch_branch (mb, pos);
5184 mono_mb_emit_ldloc (mb, 0);
5185 mono_mb_emit_byte (mb, CEE_RET);
5187 if (need_direct_wrapper) {
5188 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
5190 /* taken from mono_mb_create_and_cache */
5191 mono_marshal_lock ();
5192 res = g_hash_table_lookup (cache, callsig);
5193 mono_marshal_unlock ();
5195 /* Somebody may have created it before us */
5198 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
5200 mono_marshal_lock ();
5201 res = g_hash_table_lookup (cache, callsig);
5204 g_hash_table_insert (cache, callsig, res);
5205 /* Can't insert it into wrapper_hash since the key is a signature */
5206 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
5208 mono_free_method (newm);
5210 mono_marshal_unlock ();
5213 /* end mono_mb_create_and_cache */
5218 header = ((MonoMethodNormal *)res)->header;
5219 header->num_clauses = 1;
5220 header->clauses = clause;
5226 * mono_marshal_get_static_rgctx_invoke:
5229 * Generates a wrapper for calling a generic shared method, either
5230 * static or generic. We need this for virtual generic method lookup
5231 * and ldftn when we do generic code sharing. Instead of producing
5232 * the address of the method we produce the address of a wrapper for
5233 * the method because the wrapper passes the (method) runtime generic
5234 * context argument which calli cannot do.
5237 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
5239 static gboolean inited = FALSE;
5240 static int num_wrappers = 0;
5242 MonoMethodBuilder *mb;
5244 MonoClass *target_klass = method->klass;
5245 MonoMethodSignature *sig = mono_method_signature (method);
5249 MonoImage *image = method->klass->image;
5251 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
5252 if ((res = mono_marshal_find_in_cache (cache, method)))
5256 mono_counters_register ("static rgctx invoke wrappers",
5257 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
5262 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
5263 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
5266 for (i = 0; i < sig->param_count + sig->hasthis; i++)
5267 mono_mb_emit_ldarg (mb, i);
5268 mono_mb_emit_op (mb, CEE_CALL, method);
5269 mono_mb_emit_byte (mb, CEE_RET);
5271 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
5272 sig->param_count + sig->hasthis + 4);
5273 res->skip_visibility = TRUE;
5274 res->flags = method->flags;
5282 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5284 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5285 klass->name_space, klass->name);
5287 mono_mb_emit_exception_marshal_directive (mb, msg);
5291 * mono_marshal_get_ldfld_remote_wrapper:
5292 * @klass: The return type
5294 * This method generates a wrapper for calling mono_load_remote_field_new.
5295 * The return type is ignored for now, as mono_load_remote_field_new () always
5296 * returns an object. In the future, to optimize some codepaths, we might
5297 * call a different function that takes a pointer to a valuetype, instead.
5300 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5302 MonoMethodSignature *sig, *csig;
5303 MonoMethodBuilder *mb;
5305 static MonoMethod* cached = NULL;
5307 mono_marshal_lock ();
5309 mono_marshal_unlock ();
5312 mono_marshal_unlock ();
5314 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5316 mb->method->save_lmf = 1;
5318 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5319 sig->params [0] = &mono_defaults.object_class->byval_arg;
5320 sig->params [1] = &mono_defaults.int_class->byval_arg;
5321 sig->params [2] = &mono_defaults.int_class->byval_arg;
5322 sig->ret = &mono_defaults.object_class->byval_arg;
5324 mono_mb_emit_ldarg (mb, 0);
5325 mono_mb_emit_ldarg (mb, 1);
5326 mono_mb_emit_ldarg (mb, 2);
5328 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5329 csig->params [0] = &mono_defaults.object_class->byval_arg;
5330 csig->params [1] = &mono_defaults.int_class->byval_arg;
5331 csig->params [2] = &mono_defaults.int_class->byval_arg;
5332 csig->ret = &mono_defaults.object_class->byval_arg;
5335 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5336 emit_thread_interrupt_checkpoint (mb);
5338 mono_mb_emit_byte (mb, CEE_RET);
5340 mono_marshal_lock ();
5342 mono_marshal_unlock ();
5345 newm = mono_mb_create_method (mb, sig, 4);
5346 mono_marshal_lock ();
5351 mono_marshal_unlock ();
5353 mono_marshal_unlock ();
5354 mono_free_method (newm);
5363 * mono_marshal_get_ldfld_wrapper:
5364 * @type: the type of the field
5366 * This method generates a function which can be use to load a field with type
5367 * @type from an object. The generated function has the following signature:
5368 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5371 mono_marshal_get_ldfld_wrapper (MonoType *type)
5373 MonoMethodSignature *sig;
5374 MonoMethodBuilder *mb;
5379 int t, pos0, pos1 = 0;
5381 type = mono_type_get_underlying_type (type);
5386 if (type->type == MONO_TYPE_SZARRAY) {
5387 klass = mono_defaults.array_class;
5388 } else if (type->type == MONO_TYPE_VALUETYPE) {
5389 klass = type->data.klass;
5390 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5391 klass = mono_defaults.object_class;
5392 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5393 klass = mono_defaults.int_class;
5394 } else if (t == MONO_TYPE_GENERICINST) {
5395 if (mono_type_generic_inst_is_valuetype (type))
5396 klass = mono_class_from_mono_type (type);
5398 klass = mono_defaults.object_class;
5400 klass = mono_class_from_mono_type (type);
5403 klass = mono_defaults.int_class;
5406 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5407 if ((res = mono_marshal_find_in_cache (cache, klass)))
5410 /* we add the %p pointer value of klass because class names are not unique */
5411 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5412 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5415 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5416 sig->params [0] = &mono_defaults.object_class->byval_arg;
5417 sig->params [1] = &mono_defaults.int_class->byval_arg;
5418 sig->params [2] = &mono_defaults.int_class->byval_arg;
5419 sig->params [3] = &mono_defaults.int_class->byval_arg;
5420 sig->ret = &klass->byval_arg;
5422 mono_mb_emit_ldarg (mb, 0);
5423 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5425 mono_mb_emit_ldarg (mb, 0);
5426 mono_mb_emit_ldarg (mb, 1);
5427 mono_mb_emit_ldarg (mb, 2);
5429 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5432 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5433 csig->params [0] = &mono_defaults.object_class->byval_arg;
5434 csig->params [1] = &mono_defaults.int_class->byval_arg;
5435 csig->params [2] = &mono_defaults.int_class->byval_arg;
5436 csig->ret = &klass->this_arg;
5439 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5440 emit_thread_interrupt_checkpoint (mb);
5443 if (klass->valuetype) {
5444 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5445 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5447 mono_mb_emit_byte (mb, CEE_RET);
5451 mono_mb_patch_branch (mb, pos0);
5453 mono_mb_emit_ldarg (mb, 0);
5454 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5455 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5456 mono_mb_emit_ldarg (mb, 3);
5457 mono_mb_emit_byte (mb, CEE_ADD);
5459 if (klass->valuetype)
5460 mono_mb_patch_branch (mb, pos1);
5465 case MONO_TYPE_BOOLEAN:
5466 case MONO_TYPE_CHAR:
5475 case MONO_TYPE_ARRAY:
5476 case MONO_TYPE_SZARRAY:
5477 case MONO_TYPE_OBJECT:
5478 case MONO_TYPE_CLASS:
5479 case MONO_TYPE_STRING:
5483 case MONO_TYPE_FNPTR:
5484 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5486 case MONO_TYPE_VALUETYPE:
5487 g_assert (!klass->enumtype);
5488 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5490 case MONO_TYPE_GENERICINST:
5491 if (mono_type_generic_inst_is_valuetype (type)) {
5492 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5494 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5498 g_warning ("type %x not implemented", type->type);
5499 g_assert_not_reached ();
5502 mono_mb_emit_byte (mb, CEE_RET);
5504 res = mono_mb_create_and_cache (cache, klass,
5505 mb, sig, sig->param_count + 16);
5512 * mono_marshal_get_ldflda_wrapper:
5513 * @type: the type of the field
5515 * This method generates a function which can be used to load a field address
5516 * from an object. The generated function has the following signature:
5517 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5520 mono_marshal_get_ldflda_wrapper (MonoType *type)
5522 MonoMethodSignature *sig;
5523 MonoMethodBuilder *mb;
5528 int t, pos0, pos1, pos2, pos3;
5530 type = mono_type_get_underlying_type (type);
5534 if (type->type == MONO_TYPE_SZARRAY) {
5535 klass = mono_defaults.array_class;
5536 } else if (type->type == MONO_TYPE_VALUETYPE) {
5537 klass = type->data.klass;
5538 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5539 t == MONO_TYPE_CLASS) {
5540 klass = mono_defaults.object_class;
5541 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5542 klass = mono_defaults.int_class;
5543 } else if (t == MONO_TYPE_GENERICINST) {
5544 if (mono_type_generic_inst_is_valuetype (type))
5545 klass = mono_class_from_mono_type (type);
5547 klass = mono_defaults.object_class;
5549 klass = mono_class_from_mono_type (type);
5552 klass = mono_defaults.int_class;
5555 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5556 if ((res = mono_marshal_find_in_cache (cache, klass)))
5559 /* we add the %p pointer value of klass because class names are not unique */
5560 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5561 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5564 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5565 sig->params [0] = &mono_defaults.object_class->byval_arg;
5566 sig->params [1] = &mono_defaults.int_class->byval_arg;
5567 sig->params [2] = &mono_defaults.int_class->byval_arg;
5568 sig->params [3] = &mono_defaults.int_class->byval_arg;
5569 sig->ret = &mono_defaults.int_class->byval_arg;
5571 /* if typeof (this) != transparent_proxy goto pos0 */
5572 mono_mb_emit_ldarg (mb, 0);
5573 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5575 /* if same_appdomain goto pos1 */
5576 mono_mb_emit_ldarg (mb, 0);
5577 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5579 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5581 /* same app domain */
5582 mono_mb_patch_branch (mb, pos1);
5584 /* if typeof (this) != contextbound goto pos2 */
5585 mono_mb_emit_ldarg (mb, 0);
5586 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5588 /* if this->rp->context == mono_context_get goto pos3 */
5589 mono_mb_emit_ldarg (mb, 0);
5590 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5591 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5592 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5594 mono_mb_emit_icall (mb, mono_context_get);
5595 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5597 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5599 mono_mb_patch_branch (mb, pos2);
5600 mono_mb_patch_branch (mb, pos3);
5602 /* return the address of the field from this->rp->unwrapped_server */
5603 mono_mb_emit_ldarg (mb, 0);
5604 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5605 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5606 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5607 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5608 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5609 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5610 mono_mb_emit_ldarg (mb, 3);
5611 mono_mb_emit_byte (mb, CEE_ADD);
5612 mono_mb_emit_byte (mb, CEE_RET);
5614 /* not a proxy: return the address of the field directly */
5615 mono_mb_patch_branch (mb, pos0);
5617 mono_mb_emit_ldarg (mb, 0);
5618 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5619 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5620 mono_mb_emit_ldarg (mb, 3);
5621 mono_mb_emit_byte (mb, CEE_ADD);
5623 mono_mb_emit_byte (mb, CEE_RET);
5625 res = mono_mb_create_and_cache (cache, klass,
5626 mb, sig, sig->param_count + 16);
5633 * mono_marshal_get_stfld_remote_wrapper:
5634 * klass: The type of the field
5636 * This function generates a wrapper for calling mono_store_remote_field_new
5637 * with the appropriate signature.
5638 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5639 * klass argument anymore.
5642 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5644 MonoMethodSignature *sig, *csig;
5645 MonoMethodBuilder *mb;
5647 static MonoMethod *cached = NULL;
5649 mono_marshal_lock ();
5651 mono_marshal_unlock ();
5654 mono_marshal_unlock ();
5656 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5658 mb->method->save_lmf = 1;
5660 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5661 sig->params [0] = &mono_defaults.object_class->byval_arg;
5662 sig->params [1] = &mono_defaults.int_class->byval_arg;
5663 sig->params [2] = &mono_defaults.int_class->byval_arg;
5664 sig->params [3] = &mono_defaults.object_class->byval_arg;
5665 sig->ret = &mono_defaults.void_class->byval_arg;
5667 mono_mb_emit_ldarg (mb, 0);
5668 mono_mb_emit_ldarg (mb, 1);
5669 mono_mb_emit_ldarg (mb, 2);
5670 mono_mb_emit_ldarg (mb, 3);
5672 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5673 csig->params [0] = &mono_defaults.object_class->byval_arg;
5674 csig->params [1] = &mono_defaults.int_class->byval_arg;
5675 csig->params [2] = &mono_defaults.int_class->byval_arg;
5676 csig->params [3] = &mono_defaults.object_class->byval_arg;
5677 csig->ret = &mono_defaults.void_class->byval_arg;
5680 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5681 emit_thread_interrupt_checkpoint (mb);
5683 mono_mb_emit_byte (mb, CEE_RET);
5685 mono_marshal_lock ();
5687 mono_marshal_unlock ();
5690 newm = mono_mb_create_method (mb, sig, 6);
5691 mono_marshal_lock ();
5696 mono_marshal_unlock ();
5698 mono_marshal_unlock ();
5699 mono_free_method (newm);
5708 * mono_marshal_get_stfld_wrapper:
5709 * @type: the type of the field
5711 * This method generates a function which can be use to store a field with type
5712 * @type. The generated function has the following signature:
5713 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5716 mono_marshal_get_stfld_wrapper (MonoType *type)
5718 MonoMethodSignature *sig;
5719 MonoMethodBuilder *mb;
5726 type = mono_type_get_underlying_type (type);
5730 if (type->type == MONO_TYPE_SZARRAY) {
5731 klass = mono_defaults.array_class;
5732 } else if (type->type == MONO_TYPE_VALUETYPE) {
5733 klass = type->data.klass;
5734 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5735 klass = mono_defaults.object_class;
5736 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5737 klass = mono_defaults.int_class;
5738 } else if (t == MONO_TYPE_GENERICINST) {
5739 if (mono_type_generic_inst_is_valuetype (type))
5740 klass = mono_class_from_mono_type (type);
5742 klass = mono_defaults.object_class;
5744 klass = mono_class_from_mono_type (type);
5747 klass = mono_defaults.int_class;
5750 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5751 if ((res = mono_marshal_find_in_cache (cache, klass)))
5754 /* we add the %p pointer value of klass because class names are not unique */
5755 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5756 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5759 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5760 sig->params [0] = &mono_defaults.object_class->byval_arg;
5761 sig->params [1] = &mono_defaults.int_class->byval_arg;
5762 sig->params [2] = &mono_defaults.int_class->byval_arg;
5763 sig->params [3] = &mono_defaults.int_class->byval_arg;
5764 sig->params [4] = &klass->byval_arg;
5765 sig->ret = &mono_defaults.void_class->byval_arg;
5767 mono_mb_emit_ldarg (mb, 0);
5768 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5770 mono_mb_emit_ldarg (mb, 0);
5771 mono_mb_emit_ldarg (mb, 1);
5772 mono_mb_emit_ldarg (mb, 2);
5773 mono_mb_emit_ldarg (mb, 4);
5774 if (klass->valuetype)
5775 mono_mb_emit_op (mb, CEE_BOX, klass);
5777 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5779 mono_mb_emit_byte (mb, CEE_RET);
5781 mono_mb_patch_branch (mb, pos);
5783 mono_mb_emit_ldarg (mb, 0);
5784 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5785 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5786 mono_mb_emit_ldarg (mb, 3);
5787 mono_mb_emit_byte (mb, CEE_ADD);
5788 mono_mb_emit_ldarg (mb, 4);
5793 case MONO_TYPE_BOOLEAN:
5794 case MONO_TYPE_CHAR:
5803 case MONO_TYPE_ARRAY:
5804 case MONO_TYPE_SZARRAY:
5805 case MONO_TYPE_OBJECT:
5806 case MONO_TYPE_CLASS:
5807 case MONO_TYPE_STRING:
5811 case MONO_TYPE_FNPTR:
5812 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5814 case MONO_TYPE_VALUETYPE:
5815 g_assert (!klass->enumtype);
5816 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5818 case MONO_TYPE_GENERICINST:
5819 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5822 g_warning ("type %x not implemented", type->type);
5823 g_assert_not_reached ();
5826 mono_mb_emit_byte (mb, CEE_RET);
5828 res = mono_mb_create_and_cache (cache, klass,
5829 mb, sig, sig->param_count + 16);
5836 * generates IL code for the icall wrapper (the generated method
5837 * calls the unmanaged code in func)
5840 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5842 MonoMethodSignature *csig;
5843 MonoMethodBuilder *mb;
5847 g_assert (sig->pinvoke);
5849 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5851 mb->method->save_lmf = 1;
5853 /* we copy the signature, so that we can modify it */
5856 mono_mb_emit_byte (mb, CEE_LDARG_0);
5858 for (i = 0; i < sig->param_count; i++)
5859 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5861 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5862 if (check_exceptions)
5863 emit_thread_interrupt_checkpoint (mb);
5864 mono_mb_emit_byte (mb, CEE_RET);
5866 csig = signature_dup (mono_defaults.corlib, sig);
5868 if (csig->call_convention == MONO_CALL_VARARG)
5869 csig->call_convention = 0;
5871 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5878 MonoMethodBuilder *mb;
5879 MonoMethodSignature *sig;
5880 MonoMethodPInvoke *piinfo;
5881 int *orig_conv_args; /* Locals containing the original values of byref args */
5883 MonoClass *retobj_class;
5884 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5885 MonoImage *image; /* The image to use for looking up custom marshallers */
5886 } EmitMarshalContext;
5890 * This is invoked to convert arguments from the current types to
5891 * the underlying types expected by the platform routine. If required,
5892 * the methods create a temporary variable with the proper type, and return
5893 * the location for it (either the passed argument, or the newly allocated
5896 MARSHAL_ACTION_CONV_IN,
5899 * This operation is called to push the actual value that was optionally
5900 * converted on the first stage
5902 MARSHAL_ACTION_PUSH,
5905 * Convert byref arguments back or free resources allocated during the
5908 MARSHAL_ACTION_CONV_OUT,
5911 * The result from the unmanaged call is at the top of the stack when
5912 * this action is invoked. The result should be stored in the
5913 * third local variable slot.
5915 MARSHAL_ACTION_CONV_RESULT,
5917 MARSHAL_ACTION_MANAGED_CONV_IN,
5918 MARSHAL_ACTION_MANAGED_CONV_OUT,
5919 MARSHAL_ACTION_MANAGED_CONV_RESULT
5923 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5924 MonoMarshalSpec *spec,
5925 int conv_arg, MonoType **conv_arg_type,
5926 MarshalAction action)
5930 static MonoClass *ICustomMarshaler = NULL;
5931 static MonoMethod *cleanup_native, *cleanup_managed;
5932 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5933 MonoMethod *get_instance;
5934 MonoMethodBuilder *mb = m->mb;
5935 char *exception_msg = NULL;
5939 if (!ICustomMarshaler) {
5940 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5941 g_assert (ICustomMarshaler);
5943 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5944 g_assert (cleanup_native);
5945 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5946 g_assert (cleanup_managed);
5947 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5948 g_assert (marshal_managed_to_native);
5949 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5950 g_assert (marshal_native_to_managed);
5953 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5954 g_assert (mtype != NULL);
5955 mklass = mono_class_from_mono_type (mtype);
5956 g_assert (mklass != NULL);
5958 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5959 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5961 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5963 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5964 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5965 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5966 (get_sig->params [0]->type != MONO_TYPE_STRING))
5967 get_instance = NULL;
5971 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);
5973 /* Throw exception and emit compensation code if neccesary */
5974 if (exception_msg) {
5976 case MARSHAL_ACTION_CONV_IN:
5977 case MARSHAL_ACTION_CONV_RESULT:
5978 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5979 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5980 mono_mb_emit_byte (mb, CEE_POP);
5982 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5983 g_free (exception_msg);
5986 case MARSHAL_ACTION_PUSH:
5987 mono_mb_emit_byte (mb, CEE_LDNULL);
5995 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5996 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5999 case MARSHAL_ACTION_CONV_IN:
6001 case MONO_TYPE_CLASS:
6002 case MONO_TYPE_OBJECT:
6003 case MONO_TYPE_STRING:
6004 case MONO_TYPE_ARRAY:
6005 case MONO_TYPE_SZARRAY:
6006 case MONO_TYPE_VALUETYPE:
6010 g_warning ("custom marshalling of type %x is currently not supported", t->type);
6011 g_assert_not_reached ();
6015 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6017 mono_mb_emit_byte (mb, CEE_LDNULL);
6018 mono_mb_emit_stloc (mb, conv_arg);
6020 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
6023 /* Minic MS.NET behavior */
6024 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
6027 /* Check for null */
6028 mono_mb_emit_ldarg (mb, argnum);
6030 mono_mb_emit_byte (mb, CEE_LDIND_I);
6031 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6033 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6035 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6037 mono_mb_emit_ldarg (mb, argnum);
6039 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6041 if (t->type == MONO_TYPE_VALUETYPE) {
6043 * Since we can't determine the type of the argument, we
6044 * will assume the unmanaged function takes a pointer.
6046 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6048 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
6051 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6052 mono_mb_emit_stloc (mb, conv_arg);
6054 mono_mb_patch_branch (mb, pos2);
6057 case MARSHAL_ACTION_CONV_OUT:
6058 /* Check for null */
6059 mono_mb_emit_ldloc (mb, conv_arg);
6060 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6063 mono_mb_emit_ldarg (mb, argnum);
6065 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6067 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6069 mono_mb_emit_ldloc (mb, conv_arg);
6070 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6071 mono_mb_emit_byte (mb, CEE_STIND_REF);
6073 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6075 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6077 mono_mb_emit_ldloc (mb, conv_arg);
6078 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6080 /* We have nowhere to store the result */
6081 mono_mb_emit_byte (mb, CEE_POP);
6084 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6086 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6088 mono_mb_emit_ldloc (mb, conv_arg);
6090 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6092 mono_mb_patch_branch (mb, pos2);
6095 case MARSHAL_ACTION_PUSH:
6097 mono_mb_emit_ldloc_addr (mb, conv_arg);
6099 mono_mb_emit_ldloc (mb, conv_arg);
6102 case MARSHAL_ACTION_CONV_RESULT:
6103 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6105 mono_mb_emit_stloc (mb, 3);
6107 mono_mb_emit_ldloc (mb, 3);
6108 mono_mb_emit_stloc (mb, loc1);
6110 /* Check for null */
6111 mono_mb_emit_ldloc (mb, 3);
6112 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6114 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6116 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6117 mono_mb_emit_byte (mb, CEE_DUP);
6119 mono_mb_emit_ldloc (mb, 3);
6120 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6121 mono_mb_emit_stloc (mb, 3);
6123 mono_mb_emit_ldloc (mb, loc1);
6124 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6126 mono_mb_patch_branch (mb, pos2);
6129 case MARSHAL_ACTION_MANAGED_CONV_IN:
6130 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6132 mono_mb_emit_byte (mb, CEE_LDNULL);
6133 mono_mb_emit_stloc (mb, conv_arg);
6135 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6138 /* Check for null */
6139 mono_mb_emit_ldarg (mb, argnum);
6141 mono_mb_emit_byte (mb, CEE_LDIND_I);
6142 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6144 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6145 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6147 mono_mb_emit_ldarg (mb, argnum);
6149 mono_mb_emit_byte (mb, CEE_LDIND_I);
6151 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6152 mono_mb_emit_stloc (mb, conv_arg);
6154 mono_mb_patch_branch (mb, pos2);
6157 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6158 g_assert (!t->byref);
6160 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6162 mono_mb_emit_stloc (mb, 3);
6164 mono_mb_emit_ldloc (mb, 3);
6165 mono_mb_emit_stloc (mb, loc1);
6167 /* Check for null */
6168 mono_mb_emit_ldloc (mb, 3);
6169 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6171 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6172 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6173 mono_mb_emit_byte (mb, CEE_DUP);
6175 mono_mb_emit_ldloc (mb, 3);
6176 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6177 mono_mb_emit_stloc (mb, 3);
6179 mono_mb_emit_ldloc (mb, loc1);
6180 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6182 mono_mb_patch_branch (mb, pos2);
6185 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6187 /* Check for null */
6188 mono_mb_emit_ldloc (mb, conv_arg);
6189 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6192 mono_mb_emit_ldarg (mb, argnum);
6194 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6196 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6198 mono_mb_emit_ldloc (mb, conv_arg);
6199 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6200 mono_mb_emit_byte (mb, CEE_STIND_I);
6203 /* Call CleanUpManagedData */
6204 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6206 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6208 mono_mb_emit_ldloc (mb, conv_arg);
6209 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6211 mono_mb_patch_branch (mb, pos2);
6215 g_assert_not_reached ();
6222 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6223 MonoMarshalSpec *spec,
6224 int conv_arg, MonoType **conv_arg_type,
6225 MarshalAction action)
6227 MonoMethodBuilder *mb = m->mb;
6230 case MARSHAL_ACTION_CONV_IN: {
6231 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6233 g_assert (t->type == MONO_TYPE_OBJECT);
6234 g_assert (!t->byref);
6236 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6237 mono_mb_emit_ldarg (mb, argnum);
6238 mono_mb_emit_icon (mb, encoding);
6239 mono_mb_emit_icon (mb, t->attrs);
6240 mono_mb_emit_icall (mb, mono_marshal_asany);
6241 mono_mb_emit_stloc (mb, conv_arg);
6245 case MARSHAL_ACTION_PUSH:
6246 mono_mb_emit_ldloc (mb, conv_arg);
6249 case MARSHAL_ACTION_CONV_OUT: {
6250 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6252 mono_mb_emit_ldarg (mb, argnum);
6253 mono_mb_emit_ldloc (mb, conv_arg);
6254 mono_mb_emit_icon (mb, encoding);
6255 mono_mb_emit_icon (mb, t->attrs);
6256 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6261 g_assert_not_reached ();
6268 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6269 MonoMarshalSpec *spec,
6270 int conv_arg, MonoType **conv_arg_type,
6271 MarshalAction action)
6273 MonoMethodBuilder *mb = m->mb;
6277 klass = mono_class_from_mono_type (t);
6280 case MARSHAL_ACTION_CONV_IN:
6281 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6282 klass->blittable || klass->enumtype)
6285 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6287 /* store the address of the source into local variable 0 */
6289 mono_mb_emit_ldarg (mb, argnum);
6291 mono_mb_emit_ldarg_addr (mb, argnum);
6293 mono_mb_emit_stloc (mb, 0);
6295 /* allocate space for the native struct and
6296 * store the address into local variable 1 (dest) */
6297 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6298 mono_mb_emit_byte (mb, CEE_PREFIX1);
6299 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6300 mono_mb_emit_stloc (mb, conv_arg);
6303 mono_mb_emit_ldloc (mb, 0);
6304 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6307 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6309 mono_mb_emit_ldloc (mb, conv_arg);
6310 mono_mb_emit_stloc (mb, 1);
6312 /* emit valuetype conversion code */
6313 emit_struct_conv (mb, klass, FALSE);
6317 mono_mb_patch_branch (mb, pos);
6320 case MARSHAL_ACTION_PUSH:
6321 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6323 g_assert (!t->byref);
6325 /* Have to change the signature since the vtype is passed byref */
6326 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6328 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6329 klass->blittable || klass->enumtype)
6330 mono_mb_emit_ldarg_addr (mb, argnum);
6332 mono_mb_emit_ldloc (mb, conv_arg);
6336 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6337 klass->blittable || klass->enumtype) {
6338 mono_mb_emit_ldarg (mb, argnum);
6341 mono_mb_emit_ldloc (mb, conv_arg);
6343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6344 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6348 case MARSHAL_ACTION_CONV_OUT:
6349 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6350 klass->blittable || klass->enumtype)
6354 /* dst = argument */
6355 mono_mb_emit_ldarg (mb, argnum);
6356 mono_mb_emit_stloc (mb, 1);
6358 mono_mb_emit_ldloc (mb, 1);
6359 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6361 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6362 /* src = tmp_locals [i] */
6363 mono_mb_emit_ldloc (mb, conv_arg);
6364 mono_mb_emit_stloc (mb, 0);
6366 /* emit valuetype conversion code */
6367 emit_struct_conv (mb, klass, TRUE);
6371 emit_struct_free (mb, klass, conv_arg);
6374 mono_mb_patch_branch (mb, pos);
6377 case MARSHAL_ACTION_CONV_RESULT:
6378 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6380 mono_mb_emit_stloc (mb, 3);
6383 /* load pointer to returned value type */
6384 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6385 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6386 /* store the address of the source into local variable 0 */
6387 mono_mb_emit_stloc (mb, 0);
6389 mono_mb_emit_ldloc_addr (mb, 3);
6390 mono_mb_emit_stloc (mb, 1);
6392 /* emit valuetype conversion code */
6393 emit_struct_conv (mb, klass, TRUE);
6396 case MARSHAL_ACTION_MANAGED_CONV_IN:
6397 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6398 klass->blittable || klass->enumtype) {
6403 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6405 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6409 mono_mb_emit_ldarg (mb, argnum);
6411 mono_mb_emit_ldarg_addr (mb, argnum);
6412 mono_mb_emit_stloc (mb, 0);
6415 mono_mb_emit_ldloc (mb, 0);
6416 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6419 mono_mb_emit_ldloc_addr (mb, conv_arg);
6420 mono_mb_emit_stloc (mb, 1);
6422 /* emit valuetype conversion code */
6423 emit_struct_conv (mb, klass, TRUE);
6426 mono_mb_patch_branch (mb, pos);
6429 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6430 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6431 klass->blittable || klass->enumtype) {
6435 /* Check for null */
6436 mono_mb_emit_ldarg (mb, argnum);
6437 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6440 mono_mb_emit_ldloc_addr (mb, conv_arg);
6441 mono_mb_emit_stloc (mb, 0);
6444 mono_mb_emit_ldarg (mb, argnum);
6445 mono_mb_emit_stloc (mb, 1);
6447 /* emit valuetype conversion code */
6448 emit_struct_conv (mb, klass, FALSE);
6450 mono_mb_patch_branch (mb, pos2);
6453 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6454 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6455 klass->blittable || klass->enumtype) {
6456 mono_mb_emit_stloc (mb, 3);
6461 /* load pointer to returned value type */
6462 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6463 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6465 /* store the address of the source into local variable 0 */
6466 mono_mb_emit_stloc (mb, 0);
6467 /* allocate space for the native struct and
6468 * store the address into dst_ptr */
6469 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6470 m->retobj_class = klass;
6471 g_assert (m->retobj_var);
6472 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6473 mono_mb_emit_byte (mb, CEE_CONV_I);
6474 mono_mb_emit_icall (mb, mono_marshal_alloc);
6475 mono_mb_emit_stloc (mb, 1);
6476 mono_mb_emit_ldloc (mb, 1);
6477 mono_mb_emit_stloc (mb, m->retobj_var);
6479 /* emit valuetype conversion code */
6480 emit_struct_conv (mb, klass, FALSE);
6484 g_assert_not_reached ();
6491 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6492 MonoMarshalSpec *spec,
6493 int conv_arg, MonoType **conv_arg_type,
6494 MarshalAction action)
6496 MonoMethodBuilder *mb = m->mb;
6497 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6498 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6502 case MARSHAL_ACTION_CONV_IN:
6503 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6504 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6507 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6510 mono_mb_emit_ldarg (mb, argnum);
6511 mono_mb_emit_byte (mb, CEE_LDIND_I);
6513 mono_mb_emit_ldarg (mb, argnum);
6517 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6518 MonoException *exc = mono_get_exception_not_implemented (msg);
6521 mono_raise_exception (exc);
6524 mono_mb_emit_icall (mb, conv_to_icall (conv));
6526 mono_mb_emit_stloc (mb, conv_arg);
6529 case MARSHAL_ACTION_CONV_OUT:
6530 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6532 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6533 mono_mb_emit_exception_marshal_directive (mb, msg);
6537 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6538 mono_mb_emit_ldarg (mb, argnum);
6539 mono_mb_emit_ldloc (mb, conv_arg);
6540 mono_mb_emit_icall (mb, conv_to_icall (conv));
6541 mono_mb_emit_byte (mb, CEE_STIND_REF);
6544 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6545 mono_mb_emit_ldloc (mb, conv_arg);
6546 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6547 mono_mb_emit_icall (mb, mono_free_bstr);
6549 mono_mb_emit_icall (mb, mono_marshal_free);
6553 case MARSHAL_ACTION_PUSH:
6555 mono_mb_emit_ldloc_addr (mb, conv_arg);
6557 mono_mb_emit_ldloc (mb, conv_arg);
6560 case MARSHAL_ACTION_CONV_RESULT:
6561 mono_mb_emit_stloc (mb, 0);
6563 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6565 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6566 mono_mb_emit_exception_marshal_directive (mb, msg);
6570 mono_mb_emit_ldloc (mb, 0);
6571 mono_mb_emit_icall (mb, conv_to_icall (conv));
6572 mono_mb_emit_stloc (mb, 3);
6574 /* free the string */
6575 mono_mb_emit_ldloc (mb, 0);
6576 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6577 mono_mb_emit_icall (mb, mono_free_bstr);
6579 mono_mb_emit_icall (mb, mono_marshal_free);
6582 case MARSHAL_ACTION_MANAGED_CONV_IN:
6583 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6585 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6587 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6589 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6590 mono_mb_emit_exception_marshal_directive (mb, msg);
6594 mono_mb_emit_ldarg (mb, argnum);
6596 mono_mb_emit_byte (mb, CEE_LDIND_I);
6597 mono_mb_emit_icall (mb, conv_to_icall (conv));
6598 mono_mb_emit_stloc (mb, conv_arg);
6601 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6604 mono_mb_emit_ldarg (mb, argnum);
6605 mono_mb_emit_ldloc (mb, conv_arg);
6606 mono_mb_emit_icall (mb, conv_to_icall (conv));
6607 mono_mb_emit_byte (mb, CEE_STIND_I);
6612 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6613 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6614 /* We need to make a copy so the caller is able to free it */
6615 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6617 mono_mb_emit_icall (mb, conv_to_icall (conv));
6618 mono_mb_emit_stloc (mb, 3);
6622 g_assert_not_reached ();
6629 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6630 MonoMarshalSpec *spec, int conv_arg,
6631 MonoType **conv_arg_type, MarshalAction action)
6633 MonoMethodBuilder *mb = m->mb;
6636 case MARSHAL_ACTION_CONV_IN: {
6637 MonoType *intptr_type;
6638 int dar_release_slot, pos;
6640 intptr_type = &mono_defaults.int_class->byval_arg;
6641 conv_arg = mono_mb_add_local (mb, intptr_type);
6642 *conv_arg_type = intptr_type;
6644 if (!sh_dangerous_add_ref)
6645 init_safe_handle ();
6647 mono_mb_emit_ldarg (mb, argnum);
6648 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6649 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6651 mono_mb_patch_branch (mb, pos);
6654 * My tests in show that ref SafeHandles are not really
6655 * passed as ref objects. Instead a NULL is passed as the
6658 mono_mb_emit_icon (mb, 0);
6659 mono_mb_emit_stloc (mb, conv_arg);
6663 /* Create local to hold the ref parameter to DangerousAddRef */
6664 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6666 /* set release = false; */
6667 mono_mb_emit_icon (mb, 0);
6668 mono_mb_emit_stloc (mb, dar_release_slot);
6670 /* safehandle.DangerousAddRef (ref release) */
6671 mono_mb_emit_ldarg (mb, argnum);
6672 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6673 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6675 /* Pull the handle field from SafeHandle */
6676 mono_mb_emit_ldarg (mb, argnum);
6677 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6678 mono_mb_emit_byte (mb, CEE_LDIND_I);
6679 mono_mb_emit_stloc (mb, conv_arg);
6684 case MARSHAL_ACTION_PUSH:
6686 mono_mb_emit_ldloc_addr (mb, conv_arg);
6688 mono_mb_emit_ldloc (mb, conv_arg);
6691 case MARSHAL_ACTION_CONV_OUT: {
6692 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6693 int dar_release_slot = conv_arg + 1;
6696 if (!sh_dangerous_release)
6697 init_safe_handle ();
6703 * My tests indicate that ref SafeHandles parameters are not actually
6704 * passed by ref, but instead a new Handle is created regardless of
6705 * whether a change happens in the unmanaged side.
6707 * Also, the Handle is created before calling into unmanaged code,
6708 * but we do not support that mechanism (getting to the original
6709 * handle) and it makes no difference where we create this
6711 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6713 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6716 /* refval = new SafeHandleDerived ()*/
6717 mono_mb_emit_ldarg (mb, argnum);
6718 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6719 mono_mb_emit_byte (mb, CEE_STIND_REF);
6721 /* refval.handle = returned_handle */
6722 mono_mb_emit_ldarg (mb, argnum);
6723 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6724 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6725 mono_mb_emit_ldloc (mb, conv_arg);
6726 mono_mb_emit_byte (mb, CEE_STIND_I);
6728 mono_mb_emit_ldloc (mb, dar_release_slot);
6729 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6730 mono_mb_emit_ldarg (mb, argnum);
6731 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6732 mono_mb_patch_branch (mb, label_next);
6737 case MARSHAL_ACTION_CONV_RESULT: {
6738 MonoMethod *ctor = NULL;
6739 int intptr_handle_slot;
6741 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6742 mono_mb_emit_byte (mb, CEE_POP);
6743 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6747 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6749 mono_mb_emit_byte (mb, CEE_POP);
6750 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6753 /* Store the IntPtr results into a local */
6754 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6755 mono_mb_emit_stloc (mb, intptr_handle_slot);
6757 /* Create return value */
6758 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6759 mono_mb_emit_stloc (mb, 3);
6761 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6762 mono_mb_emit_ldloc (mb, 3);
6763 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6764 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6765 mono_mb_emit_byte (mb, CEE_STIND_I);
6769 case MARSHAL_ACTION_MANAGED_CONV_IN:
6770 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6773 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6774 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6777 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6778 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6781 printf ("Unhandled case for MarshalAction: %d\n", action);
6788 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6789 MonoMarshalSpec *spec, int conv_arg,
6790 MonoType **conv_arg_type, MarshalAction action)
6792 MonoMethodBuilder *mb = m->mb;
6795 case MARSHAL_ACTION_CONV_IN: {
6796 MonoType *intptr_type;
6798 intptr_type = &mono_defaults.int_class->byval_arg;
6799 conv_arg = mono_mb_add_local (mb, intptr_type);
6800 *conv_arg_type = intptr_type;
6803 mono_mb_emit_exception_marshal_directive (mb,
6804 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6807 mono_mb_emit_ldarg_addr (mb, argnum);
6808 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6809 mono_mb_emit_byte (mb, CEE_ADD);
6810 mono_mb_emit_byte (mb, CEE_LDIND_I);
6811 mono_mb_emit_stloc (mb, conv_arg);
6815 case MARSHAL_ACTION_PUSH:
6816 mono_mb_emit_ldloc (mb, conv_arg);
6819 case MARSHAL_ACTION_CONV_OUT: {
6820 /* no resource release required */
6824 case MARSHAL_ACTION_CONV_RESULT: {
6825 mono_mb_emit_exception_marshal_directive (mb,
6826 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6830 case MARSHAL_ACTION_MANAGED_CONV_IN:
6831 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6834 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6835 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6838 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6839 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6842 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6849 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6850 MonoMarshalSpec *spec,
6851 int conv_arg, MonoType **conv_arg_type,
6852 MarshalAction action)
6854 MonoMethodBuilder *mb = m->mb;
6855 MonoClass *klass = mono_class_from_mono_type (t);
6858 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6859 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6863 case MARSHAL_ACTION_CONV_IN:
6864 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6865 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6867 m->orig_conv_args [argnum] = 0;
6869 if (klass->delegate) {
6871 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6872 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6873 mono_mb_emit_exception_marshal_directive (mb, msg);
6875 mono_mb_emit_byte (mb, CEE_LDNULL);
6876 mono_mb_emit_stloc (mb, conv_arg);
6878 mono_mb_emit_ldarg (mb, argnum);
6879 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6880 mono_mb_emit_stloc (mb, conv_arg);
6882 } else if (klass == mono_defaults.stringbuilder_class) {
6883 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6884 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6886 g_assert (!t->byref);
6887 mono_mb_emit_ldarg (mb, argnum);
6890 mono_mb_emit_icall (mb, conv_to_icall (conv));
6892 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6893 MonoException *exc = mono_get_exception_not_implemented (msg);
6896 mono_raise_exception (exc);
6899 mono_mb_emit_stloc (mb, conv_arg);
6900 } else if (klass->blittable) {
6901 mono_mb_emit_byte (mb, CEE_LDNULL);
6902 mono_mb_emit_stloc (mb, conv_arg);
6904 mono_mb_emit_ldarg (mb, argnum);
6905 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6907 mono_mb_emit_ldarg (mb, argnum);
6908 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6909 mono_mb_emit_stloc (mb, conv_arg);
6911 mono_mb_patch_branch (mb, pos);
6914 mono_mb_emit_byte (mb, CEE_LDNULL);
6915 mono_mb_emit_stloc (mb, conv_arg);
6918 /* we dont need any conversions for out parameters */
6919 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6922 mono_mb_emit_ldarg (mb, argnum);
6923 mono_mb_emit_byte (mb, CEE_LDIND_I);
6926 mono_mb_emit_ldarg (mb, argnum);
6927 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6928 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6931 /* store the address of the source into local variable 0 */
6932 mono_mb_emit_stloc (mb, 0);
6933 mono_mb_emit_ldloc (mb, 0);
6934 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6936 /* allocate space for the native struct and store the address */
6937 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6938 mono_mb_emit_byte (mb, CEE_PREFIX1);
6939 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6940 mono_mb_emit_stloc (mb, conv_arg);
6943 /* Need to store the original buffer so we can free it later */
6944 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6945 mono_mb_emit_ldloc (mb, conv_arg);
6946 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6949 /* set the src_ptr */
6950 mono_mb_emit_ldloc (mb, 0);
6951 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6952 mono_mb_emit_stloc (mb, 0);
6955 mono_mb_emit_ldloc (mb, conv_arg);
6956 mono_mb_emit_stloc (mb, 1);
6958 /* emit valuetype conversion code */
6959 emit_struct_conv (mb, klass, FALSE);
6961 mono_mb_patch_branch (mb, pos);
6965 case MARSHAL_ACTION_CONV_OUT:
6966 if (klass == mono_defaults.stringbuilder_class) {
6968 MonoMarshalNative encoding;
6969 MonoMarshalConv conv;
6971 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6972 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6974 g_assert (!t->byref);
6975 g_assert (encoding != -1);
6977 mono_mb_emit_ldarg (mb, argnum);
6978 mono_mb_emit_ldloc (mb, conv_arg);
6980 mono_mb_emit_icall (mb, conv_to_icall (conv));
6983 mono_mb_emit_ldloc (mb, conv_arg);
6984 mono_mb_emit_icall (mb, mono_marshal_free);
6989 if (klass->delegate) {
6991 mono_mb_emit_ldarg (mb, argnum);
6992 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6993 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6994 mono_mb_emit_ldloc (mb, conv_arg);
6995 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6996 mono_mb_emit_byte (mb, CEE_STIND_REF);
7001 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7002 /* allocate a new object */
7003 mono_mb_emit_ldarg (mb, argnum);
7004 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7005 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7006 mono_mb_emit_byte (mb, CEE_STIND_REF);
7009 /* dst = *argument */
7010 mono_mb_emit_ldarg (mb, argnum);
7013 mono_mb_emit_byte (mb, CEE_LDIND_I);
7015 mono_mb_emit_stloc (mb, 1);
7017 mono_mb_emit_ldloc (mb, 1);
7018 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7020 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7021 mono_mb_emit_ldloc (mb, 1);
7022 mono_mb_emit_icon (mb, sizeof (MonoObject));
7023 mono_mb_emit_byte (mb, CEE_ADD);
7024 mono_mb_emit_stloc (mb, 1);
7026 /* src = tmp_locals [i] */
7027 mono_mb_emit_ldloc (mb, conv_arg);
7028 mono_mb_emit_stloc (mb, 0);
7030 /* emit valuetype conversion code */
7031 emit_struct_conv (mb, klass, TRUE);
7033 /* Free the structure returned by the native code */
7034 emit_struct_free (mb, klass, conv_arg);
7036 if (m->orig_conv_args [argnum]) {
7038 * If the native function changed the pointer, then free
7039 * the original structure plus the new pointer.
7041 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
7042 mono_mb_emit_ldloc (mb, conv_arg);
7043 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
7045 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
7046 g_assert (m->orig_conv_args [argnum]);
7048 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
7051 mono_mb_emit_ldloc (mb, conv_arg);
7052 mono_mb_emit_icall (mb, g_free);
7054 mono_mb_patch_branch (mb, pos2);
7058 /* Free the original structure passed to native code */
7059 emit_struct_free (mb, klass, conv_arg);
7061 mono_mb_patch_branch (mb, pos);
7064 case MARSHAL_ACTION_PUSH:
7066 mono_mb_emit_ldloc_addr (mb, conv_arg);
7068 mono_mb_emit_ldloc (mb, conv_arg);
7071 case MARSHAL_ACTION_CONV_RESULT:
7072 if (klass->delegate) {
7073 g_assert (!t->byref);
7074 mono_mb_emit_stloc (mb, 0);
7075 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7076 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7077 mono_mb_emit_ldloc (mb, 0);
7078 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7079 mono_mb_emit_stloc (mb, 3);
7082 mono_mb_emit_stloc (mb, 0);
7084 /* Make a copy since emit_conv modifies local 0 */
7085 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7086 mono_mb_emit_ldloc (mb, 0);
7087 mono_mb_emit_stloc (mb, loc);
7089 mono_mb_emit_byte (mb, CEE_LDNULL);
7090 mono_mb_emit_stloc (mb, 3);
7092 mono_mb_emit_ldloc (mb, 0);
7093 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7095 /* allocate result object */
7097 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7098 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7099 mono_mb_emit_stloc (mb, 3);
7103 mono_mb_emit_ldloc (mb, 3);
7104 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7105 mono_mb_emit_stloc (mb, 1);
7107 /* emit conversion code */
7108 emit_struct_conv (mb, klass, TRUE);
7110 emit_struct_free (mb, klass, loc);
7112 /* Free the pointer allocated by unmanaged code */
7113 mono_mb_emit_ldloc (mb, loc);
7114 mono_mb_emit_icall (mb, g_free);
7115 mono_mb_patch_branch (mb, pos);
7119 case MARSHAL_ACTION_MANAGED_CONV_IN:
7120 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7122 if (klass->delegate) {
7123 g_assert (!t->byref);
7124 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7125 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7126 mono_mb_emit_ldarg (mb, argnum);
7127 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7128 mono_mb_emit_stloc (mb, conv_arg);
7132 if (klass == mono_defaults.stringbuilder_class) {
7133 MonoMarshalNative encoding;
7135 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7138 g_assert (encoding == MONO_NATIVE_LPSTR);
7140 g_assert (!t->byref);
7141 g_assert (encoding != -1);
7143 mono_mb_emit_ldarg (mb, argnum);
7144 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
7145 mono_mb_emit_stloc (mb, conv_arg);
7149 /* The class can not have an automatic layout */
7150 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7151 mono_mb_emit_auto_layout_exception (mb, klass);
7155 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
7156 mono_mb_emit_byte (mb, CEE_LDNULL);
7157 mono_mb_emit_stloc (mb, conv_arg);
7162 mono_mb_emit_ldarg (mb, argnum);
7166 /* Check for NULL and raise an exception */
7167 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7169 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
7171 mono_mb_patch_branch (mb, pos2);
7172 mono_mb_emit_ldarg (mb, argnum);
7173 mono_mb_emit_byte (mb, CEE_LDIND_I);
7176 mono_mb_emit_stloc (mb, 0);
7178 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7179 mono_mb_emit_stloc (mb, conv_arg);
7181 mono_mb_emit_ldloc (mb, 0);
7182 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7184 /* Create and set dst */
7185 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7186 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7187 mono_mb_emit_stloc (mb, conv_arg);
7188 mono_mb_emit_ldloc (mb, conv_arg);
7189 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7190 mono_mb_emit_stloc (mb, 1);
7192 /* emit valuetype conversion code */
7193 emit_struct_conv (mb, klass, TRUE);
7195 mono_mb_patch_branch (mb, pos);
7198 case MARSHAL_ACTION_MANAGED_CONV_OUT:
7200 /* Check for null */
7201 mono_mb_emit_ldloc (mb, conv_arg);
7202 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7203 mono_mb_emit_ldarg (mb, argnum);
7204 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7205 mono_mb_emit_byte (mb, CEE_STIND_REF);
7206 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7208 mono_mb_patch_branch (mb, pos);
7211 mono_mb_emit_ldloc (mb, conv_arg);
7212 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7213 mono_mb_emit_stloc (mb, 0);
7215 /* Allocate and set dest */
7216 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7217 mono_mb_emit_byte (mb, CEE_CONV_I);
7218 mono_mb_emit_icall (mb, mono_marshal_alloc);
7219 mono_mb_emit_stloc (mb, 1);
7221 /* Update argument pointer */
7222 mono_mb_emit_ldarg (mb, argnum);
7223 mono_mb_emit_ldloc (mb, 1);
7224 mono_mb_emit_byte (mb, CEE_STIND_I);
7226 /* emit valuetype conversion code */
7227 emit_struct_conv (mb, klass, FALSE);
7229 mono_mb_patch_branch (mb, pos2);
7231 /* byval [Out] marshalling */
7233 /* FIXME: Handle null */
7236 mono_mb_emit_ldloc (mb, conv_arg);
7237 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7238 mono_mb_emit_stloc (mb, 0);
7241 mono_mb_emit_ldarg (mb, argnum);
7242 mono_mb_emit_stloc (mb, 1);
7244 /* emit valuetype conversion code */
7245 emit_struct_conv (mb, klass, FALSE);
7249 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7250 if (klass->delegate) {
7251 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7252 mono_mb_emit_stloc (mb, 3);
7256 /* The class can not have an automatic layout */
7257 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7258 mono_mb_emit_auto_layout_exception (mb, klass);
7262 mono_mb_emit_stloc (mb, 0);
7263 /* Check for null */
7264 mono_mb_emit_ldloc (mb, 0);
7265 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7266 mono_mb_emit_byte (mb, CEE_LDNULL);
7267 mono_mb_emit_stloc (mb, 3);
7268 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7270 mono_mb_patch_branch (mb, pos);
7273 mono_mb_emit_ldloc (mb, 0);
7274 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7275 mono_mb_emit_stloc (mb, 0);
7277 /* Allocate and set dest */
7278 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7279 mono_mb_emit_byte (mb, CEE_CONV_I);
7280 mono_mb_emit_icall (mb, mono_marshal_alloc);
7281 mono_mb_emit_byte (mb, CEE_DUP);
7282 mono_mb_emit_stloc (mb, 1);
7283 mono_mb_emit_stloc (mb, 3);
7285 emit_struct_conv (mb, klass, FALSE);
7287 mono_mb_patch_branch (mb, pos2);
7291 g_assert_not_reached ();
7300 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7301 MonoMarshalSpec *spec,
7302 int conv_arg, MonoType **conv_arg_type,
7303 MarshalAction action)
7305 MonoMethodBuilder *mb = m->mb;
7306 MonoClass *klass = t->data.klass;
7307 static MonoMethod* get_object_for_iunknown = NULL;
7308 static MonoMethod* get_iunknown_for_object_internal = NULL;
7309 static MonoMethod* get_com_interface_for_object_internal = NULL;
7310 static MonoMethod* get_idispatch_for_object_internal = NULL;
7311 static MonoMethod* marshal_release = NULL;
7312 static MonoMethod* AddRef = NULL;
7313 if (!get_object_for_iunknown)
7314 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7315 if (!get_iunknown_for_object_internal)
7316 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7317 if (!get_idispatch_for_object_internal)
7318 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7319 if (!get_com_interface_for_object_internal)
7320 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7321 if (!marshal_release)
7322 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7324 /* COM types are initialized lazily */
7325 mono_init_com_types ();
7328 case MARSHAL_ACTION_CONV_IN: {
7329 guint32 pos_null = 0;
7331 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7332 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7334 mono_mb_emit_ptr (mb, NULL);
7335 mono_mb_emit_stloc (mb, conv_arg);
7337 /* we dont need any conversions for out parameters */
7338 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7341 mono_mb_emit_ldarg (mb, argnum);
7343 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7344 /* if null just break, conv arg was already inited to 0 */
7345 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7347 mono_mb_emit_ldarg (mb, argnum);
7349 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7351 if (klass && klass != mono_defaults.object_class) {
7352 mono_mb_emit_ptr (mb, t);
7353 mono_mb_emit_icall (mb, type_from_handle);
7354 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7356 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7357 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7358 else if (spec->native == MONO_NATIVE_IDISPATCH)
7359 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7360 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7361 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7363 g_assert_not_reached ();
7364 mono_mb_emit_stloc (mb, conv_arg);
7365 mono_mb_patch_short_branch (mb, pos_null);
7369 case MARSHAL_ACTION_CONV_OUT: {
7370 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7372 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7373 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7375 mono_mb_emit_ldarg (mb, argnum);
7376 mono_mb_emit_byte (mb, CEE_LDNULL);
7377 mono_mb_emit_byte (mb, CEE_STIND_REF);
7379 mono_mb_emit_ldloc (mb, conv_arg);
7380 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7382 mono_mb_emit_ldloc (mb, conv_arg);
7383 mono_mb_emit_icon (mb, TRUE);
7384 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7385 mono_mb_emit_stloc (mb, ccw_obj);
7386 mono_mb_emit_ldloc (mb, ccw_obj);
7387 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7389 mono_mb_emit_ldarg (mb, argnum);
7390 mono_mb_emit_ldloc (mb, conv_arg);
7391 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7393 if (klass && klass != mono_defaults.object_class)
7394 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7395 mono_mb_emit_byte (mb, CEE_STIND_REF);
7397 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7399 /* is already managed object */
7400 mono_mb_patch_short_branch (mb, pos_ccw);
7401 mono_mb_emit_ldarg (mb, argnum);
7402 mono_mb_emit_ldloc (mb, ccw_obj);
7404 if (klass && klass != mono_defaults.object_class)
7405 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7406 mono_mb_emit_byte (mb, CEE_STIND_REF);
7408 mono_mb_patch_short_branch (mb, pos_end);
7410 /* need to call Release to follow COM rules of ownership */
7411 mono_mb_emit_ldloc (mb, conv_arg);
7412 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7413 mono_mb_emit_byte (mb, CEE_POP);
7416 mono_mb_patch_short_branch (mb, pos_null);
7420 case MARSHAL_ACTION_PUSH:
7422 mono_mb_emit_ldloc_addr (mb, conv_arg);
7424 mono_mb_emit_ldloc (mb, conv_arg);
7427 case MARSHAL_ACTION_CONV_RESULT: {
7428 int ccw_obj, ret_ptr;
7429 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7430 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7431 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7433 /* store return value */
7434 mono_mb_emit_stloc (mb, ret_ptr);
7436 mono_mb_emit_ldloc (mb, ret_ptr);
7437 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7439 mono_mb_emit_ldloc (mb, ret_ptr);
7440 mono_mb_emit_icon (mb, TRUE);
7441 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7442 mono_mb_emit_stloc (mb, ccw_obj);
7443 mono_mb_emit_ldloc (mb, ccw_obj);
7444 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7446 mono_mb_emit_ldloc (mb, ret_ptr);
7447 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7449 if (klass && klass != mono_defaults.object_class)
7450 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7451 mono_mb_emit_stloc (mb, 3);
7453 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7455 /* is already managed object */
7456 mono_mb_patch_short_branch (mb, pos_ccw);
7457 mono_mb_emit_ldloc (mb, ccw_obj);
7459 if (klass && klass != mono_defaults.object_class)
7460 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7461 mono_mb_emit_stloc (mb, 3);
7463 mono_mb_patch_short_branch (mb, pos_end);
7465 /* need to call Release to follow COM rules of ownership */
7466 mono_mb_emit_ldloc (mb, ret_ptr);
7467 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7468 mono_mb_emit_byte (mb, CEE_POP);
7471 mono_mb_patch_short_branch (mb, pos_null);
7475 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7477 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7478 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7480 klass = mono_class_from_mono_type (t);
7481 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7482 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7484 mono_mb_emit_byte (mb, CEE_LDNULL);
7485 mono_mb_emit_stloc (mb, conv_arg);
7486 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7489 mono_mb_emit_ldarg (mb, argnum);
7491 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7492 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7494 mono_mb_emit_ldarg (mb, argnum);
7496 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7497 mono_mb_emit_icon (mb, TRUE);
7498 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7499 mono_mb_emit_stloc (mb, ccw_obj);
7500 mono_mb_emit_ldloc (mb, ccw_obj);
7501 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7504 mono_mb_emit_ldarg (mb, argnum);
7506 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7507 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7509 if (klass && klass != mono_defaults.object_class)
7510 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7511 mono_mb_emit_stloc (mb, conv_arg);
7512 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7514 /* is already managed object */
7515 mono_mb_patch_short_branch (mb, pos_ccw);
7516 mono_mb_emit_ldloc (mb, ccw_obj);
7517 if (klass && klass != mono_defaults.object_class)
7518 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7519 mono_mb_emit_stloc (mb, conv_arg);
7521 mono_mb_patch_short_branch (mb, pos_end);
7523 mono_mb_patch_short_branch (mb, pos_null);
7527 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7528 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7529 guint32 pos_null = 0;
7532 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7534 mono_mb_emit_ldloc (mb, conv_arg);
7535 /* if null just break, conv arg was already inited to 0 */
7536 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7538 /* to store later */
7539 mono_mb_emit_ldarg (mb, argnum);
7540 mono_mb_emit_ldloc (mb, conv_arg);
7541 if (klass && klass != mono_defaults.object_class) {
7542 mono_mb_emit_ptr (mb, t);
7543 mono_mb_emit_icall (mb, type_from_handle);
7544 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7546 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7547 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7548 else if (spec->native == MONO_NATIVE_IDISPATCH)
7549 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7550 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7551 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7553 g_assert_not_reached ();
7554 mono_mb_emit_byte (mb, CEE_STIND_I);
7556 mono_mb_emit_ldarg (mb, argnum);
7557 mono_mb_emit_byte (mb, CEE_LDIND_I);
7558 mono_mb_emit_managed_call (mb, AddRef, NULL);
7559 mono_mb_emit_byte (mb, CEE_POP);
7561 mono_mb_patch_short_branch (mb, pos_null);
7566 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7567 guint32 pos_null = 0;
7569 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7572 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7574 /* store return value */
7575 mono_mb_emit_stloc (mb, ccw_obj);
7577 mono_mb_emit_ldloc (mb, ccw_obj);
7579 /* if null just break, conv arg was already inited to 0 */
7580 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7582 /* to store later */
7583 mono_mb_emit_ldloc (mb, ccw_obj);
7584 if (klass && klass != mono_defaults.object_class) {
7585 mono_mb_emit_ptr (mb, t);
7586 mono_mb_emit_icall (mb, type_from_handle);
7587 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7589 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7590 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7591 else if (spec->native == MONO_NATIVE_IDISPATCH)
7592 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7593 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7594 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7596 g_assert_not_reached ();
7597 mono_mb_emit_stloc (mb, 3);
7598 mono_mb_emit_ldloc (mb, 3);
7600 mono_mb_emit_managed_call (mb, AddRef, NULL);
7601 mono_mb_emit_byte (mb, CEE_POP);
7603 mono_mb_patch_short_branch (mb, pos_null);
7608 g_assert_not_reached ();
7614 #endif /* DISABLE_COM */
7617 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7618 MonoMarshalSpec *spec,
7619 int conv_arg, MonoType **conv_arg_type,
7620 MarshalAction action)
7622 MonoMethodBuilder *mb = m->mb;
7623 static MonoMethod *get_object_for_native_variant = NULL;
7624 static MonoMethod *get_native_variant_for_object = NULL;
7626 mono_init_com_types ();
7628 if (!get_object_for_native_variant)
7629 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7630 g_assert (get_object_for_native_variant);
7632 if (!get_native_variant_for_object)
7633 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7634 g_assert (get_native_variant_for_object);
7637 case MARSHAL_ACTION_CONV_IN: {
7638 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7641 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7643 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7645 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7648 mono_mb_emit_ldarg (mb, argnum);
7650 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7651 mono_mb_emit_ldloc_addr (mb, conv_arg);
7652 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7656 case MARSHAL_ACTION_CONV_OUT: {
7657 static MonoMethod *variant_clear = NULL;
7660 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7661 g_assert (variant_clear);
7664 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7665 mono_mb_emit_ldarg (mb, argnum);
7666 mono_mb_emit_ldloc_addr (mb, conv_arg);
7667 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7668 mono_mb_emit_byte (mb, CEE_STIND_REF);
7671 mono_mb_emit_ldloc_addr (mb, conv_arg);
7672 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7676 case MARSHAL_ACTION_PUSH:
7678 mono_mb_emit_ldloc_addr (mb, conv_arg);
7680 mono_mb_emit_ldloc (mb, conv_arg);
7683 case MARSHAL_ACTION_CONV_RESULT: {
7684 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7685 mono_mb_emit_exception_marshal_directive (mb, msg);
7689 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7690 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7693 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7695 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7697 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7701 mono_mb_emit_ldarg (mb, argnum);
7703 mono_mb_emit_ldarg_addr (mb, argnum);
7704 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7705 mono_mb_emit_stloc (mb, conv_arg);
7709 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7710 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7711 mono_mb_emit_ldloc (mb, conv_arg);
7712 mono_mb_emit_ldarg (mb, argnum);
7713 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7718 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7719 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7720 mono_mb_emit_exception_marshal_directive (mb, msg);
7725 g_assert_not_reached ();
7732 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7733 MonoMarshalSpec *spec,
7734 int conv_arg, MonoType **conv_arg_type,
7735 MarshalAction action)
7737 MonoMethodBuilder *mb = m->mb;
7738 MonoClass *klass = mono_class_from_mono_type (t);
7739 gboolean need_convert, need_free;
7740 MonoMarshalNative encoding;
7742 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7745 case MARSHAL_ACTION_CONV_IN:
7746 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7747 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7749 if (klass->element_class->blittable) {
7750 mono_mb_emit_ldarg (mb, argnum);
7752 mono_mb_emit_byte (mb, CEE_LDIND_I);
7753 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7754 mono_mb_emit_stloc (mb, conv_arg);
7757 guint32 label1, label2, label3;
7758 int index_var, src_var, dest_ptr, esize;
7759 MonoMarshalConv conv;
7760 gboolean is_string = FALSE;
7762 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7764 eklass = klass->element_class;
7766 if (eklass == mono_defaults.string_class) {
7768 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7770 else if (eklass == mono_defaults.stringbuilder_class) {
7772 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7777 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7778 mono_mb_emit_ldarg (mb, argnum);
7780 mono_mb_emit_byte (mb, CEE_LDIND_I);
7781 mono_mb_emit_stloc (mb, src_var);
7784 mono_mb_emit_ldloc (mb, src_var);
7785 mono_mb_emit_stloc (mb, conv_arg);
7786 mono_mb_emit_ldloc (mb, src_var);
7787 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7791 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7792 MonoException *exc = mono_get_exception_not_implemented (msg);
7795 mono_raise_exception (exc);
7800 esize = sizeof (gpointer);
7802 esize = mono_class_native_size (eklass, NULL);
7804 /* allocate space for the native struct and store the address */
7805 mono_mb_emit_icon (mb, esize);
7806 mono_mb_emit_ldloc (mb, src_var);
7807 mono_mb_emit_byte (mb, CEE_LDLEN);
7809 if (eklass == mono_defaults.string_class) {
7810 /* Make the array bigger for the terminating null */
7811 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7812 mono_mb_emit_byte (mb, CEE_ADD);
7814 mono_mb_emit_byte (mb, CEE_MUL);
7815 mono_mb_emit_byte (mb, CEE_PREFIX1);
7816 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7817 mono_mb_emit_stloc (mb, conv_arg);
7819 mono_mb_emit_ldloc (mb, conv_arg);
7820 mono_mb_emit_stloc (mb, dest_ptr);
7822 /* Emit marshalling loop */
7823 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7824 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7825 mono_mb_emit_stloc (mb, index_var);
7826 label2 = mono_mb_get_label (mb);
7827 mono_mb_emit_ldloc (mb, index_var);
7828 mono_mb_emit_ldloc (mb, src_var);
7829 mono_mb_emit_byte (mb, CEE_LDLEN);
7830 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7832 /* Emit marshalling code */
7835 mono_mb_emit_ldloc (mb, dest_ptr);
7836 mono_mb_emit_ldloc (mb, src_var);
7837 mono_mb_emit_ldloc (mb, index_var);
7838 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7839 mono_mb_emit_icall (mb, conv_to_icall (conv));
7840 mono_mb_emit_byte (mb, CEE_STIND_I);
7842 /* set the src_ptr */
7843 mono_mb_emit_ldloc (mb, src_var);
7844 mono_mb_emit_ldloc (mb, index_var);
7845 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7846 mono_mb_emit_stloc (mb, 0);
7849 mono_mb_emit_ldloc (mb, dest_ptr);
7850 mono_mb_emit_stloc (mb, 1);
7852 /* emit valuetype conversion code */
7853 emit_struct_conv (mb, eklass, FALSE);
7856 mono_mb_emit_add_to_local (mb, index_var, 1);
7857 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7859 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7861 mono_mb_patch_branch (mb, label3);
7863 if (eklass == mono_defaults.string_class) {
7864 /* Null terminate */
7865 mono_mb_emit_ldloc (mb, dest_ptr);
7866 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7867 mono_mb_emit_byte (mb, CEE_STIND_REF);
7870 mono_mb_patch_branch (mb, label1);
7875 case MARSHAL_ACTION_CONV_OUT:
7876 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7877 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);
7878 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7881 if (need_convert || need_free) {
7882 /* FIXME: Optimize blittable case */
7884 guint32 label1, label2, label3;
7885 int index_var, src_ptr, loc, esize;
7887 eklass = klass->element_class;
7888 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7889 esize = sizeof (gpointer);
7891 esize = mono_class_native_size (eklass, NULL);
7892 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7893 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7896 mono_mb_emit_ldarg (mb, argnum);
7898 mono_mb_emit_byte (mb, CEE_LDIND_I);
7899 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7901 mono_mb_emit_ldloc (mb, conv_arg);
7902 mono_mb_emit_stloc (mb, src_ptr);
7904 /* Emit marshalling loop */
7905 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7906 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7907 mono_mb_emit_stloc (mb, index_var);
7908 label2 = mono_mb_get_label (mb);
7909 mono_mb_emit_ldloc (mb, index_var);
7910 mono_mb_emit_ldarg (mb, argnum);
7912 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7913 mono_mb_emit_byte (mb, CEE_LDLEN);
7914 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7916 /* Emit marshalling code */
7918 if (eklass == mono_defaults.stringbuilder_class) {
7919 gboolean need_free2;
7920 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7922 g_assert (conv != -1);
7925 mono_mb_emit_ldarg (mb, argnum);
7927 mono_mb_emit_byte (mb, CEE_LDIND_I);
7928 mono_mb_emit_ldloc (mb, index_var);
7929 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7932 mono_mb_emit_ldloc (mb, src_ptr);
7933 mono_mb_emit_byte (mb, CEE_LDIND_I);
7935 mono_mb_emit_icall (mb, conv_to_icall (conv));
7939 mono_mb_emit_ldloc (mb, src_ptr);
7940 mono_mb_emit_byte (mb, CEE_LDIND_I);
7942 mono_mb_emit_icall (mb, mono_marshal_free);
7945 else if (eklass == mono_defaults.string_class) {
7948 mono_mb_emit_ldloc (mb, src_ptr);
7949 mono_mb_emit_byte (mb, CEE_LDIND_I);
7951 mono_mb_emit_icall (mb, mono_marshal_free);
7956 /* set the src_ptr */
7957 mono_mb_emit_ldloc (mb, src_ptr);
7958 mono_mb_emit_stloc (mb, 0);
7961 mono_mb_emit_ldarg (mb, argnum);
7963 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7964 mono_mb_emit_ldloc (mb, index_var);
7965 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7966 mono_mb_emit_stloc (mb, 1);
7968 /* emit valuetype conversion code */
7969 emit_struct_conv (mb, eklass, TRUE);
7973 mono_mb_emit_ldloc (mb, src_ptr);
7974 mono_mb_emit_stloc (mb, loc);
7975 mono_mb_emit_ldloc (mb, loc);
7977 emit_struct_free (mb, eklass, loc);
7981 mono_mb_emit_add_to_local (mb, index_var, 1);
7982 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7984 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7986 mono_mb_patch_branch (mb, label1);
7987 mono_mb_patch_branch (mb, label3);
7991 case MARSHAL_ACTION_PUSH:
7993 mono_mb_emit_ldloc_addr (mb, conv_arg);
7995 mono_mb_emit_ldloc (mb, conv_arg);
7998 case MARSHAL_ACTION_CONV_RESULT:
7999 /* fixme: we need conversions here */
8000 mono_mb_emit_stloc (mb, 3);
8003 case MARSHAL_ACTION_MANAGED_CONV_IN: {
8005 guint32 label1, label2, label3;
8006 int index_var, src_ptr, loc, esize, param_num, num_elem;
8007 MonoMarshalConv conv;
8008 gboolean is_string = FALSE;
8010 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8011 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8014 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
8015 mono_mb_emit_exception_marshal_directive (mb, msg);
8019 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
8020 mono_mb_emit_exception_marshal_directive (mb, msg);
8023 if (spec->native != MONO_NATIVE_LPARRAY) {
8024 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
8025 mono_mb_emit_exception_marshal_directive (mb, msg);
8029 /* FIXME: t is from the method which is wrapped, not the delegate type */
8030 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
8032 param_num = spec->data.array_data.param_num;
8033 num_elem = spec->data.array_data.num_elem;
8034 if (spec->data.array_data.elem_mult == 0)
8035 /* param_num is not specified */
8038 if (param_num == -1) {
8039 if (num_elem <= 0) {
8040 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
8041 mono_mb_emit_exception_marshal_directive (mb, msg);
8046 /* FIXME: Optimize blittable case */
8048 eklass = klass->element_class;
8049 if (eklass == mono_defaults.string_class) {
8051 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
8053 else if (eklass == mono_defaults.stringbuilder_class) {
8055 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
8060 mono_marshal_load_type_info (eklass);
8063 esize = sizeof (gpointer);
8065 esize = mono_class_native_size (eklass, NULL);
8066 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8067 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8069 mono_mb_emit_byte (mb, CEE_LDNULL);
8070 mono_mb_emit_stloc (mb, conv_arg);
8072 /* Check param index */
8073 if (param_num != -1) {
8074 if (param_num >= m->sig->param_count) {
8075 char *msg = g_strdup ("Array size control parameter index is out of range.");
8076 mono_mb_emit_exception_marshal_directive (mb, msg);
8079 switch (m->sig->params [param_num]->type) {
8092 char *msg = g_strdup ("Array size control parameter must be an integral type.");
8093 mono_mb_emit_exception_marshal_directive (mb, msg);
8100 mono_mb_emit_ldarg (mb, argnum);
8101 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8103 mono_mb_emit_ldarg (mb, argnum);
8104 mono_mb_emit_stloc (mb, src_ptr);
8106 /* Create managed array */
8108 * The LPArray marshalling spec says that sometimes param_num starts
8109 * from 1, sometimes it starts from 0. But MS seems to allways start
8113 if (param_num == -1)
8114 mono_mb_emit_icon (mb, num_elem);
8116 /* FIXME: Add the two together */
8117 mono_mb_emit_ldarg (mb, param_num);
8119 mono_mb_emit_icon (mb, num_elem);
8120 mono_mb_emit_byte (mb, CEE_ADD);
8124 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
8125 mono_mb_emit_stloc (mb, conv_arg);
8127 if (eklass->blittable) {
8128 mono_mb_emit_ldloc (mb, conv_arg);
8129 mono_mb_emit_byte (mb, CEE_CONV_I);
8130 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8131 mono_mb_emit_byte (mb, CEE_ADD);
8132 mono_mb_emit_ldarg (mb, argnum);
8133 mono_mb_emit_ldloc (mb, conv_arg);
8134 mono_mb_emit_byte (mb, CEE_LDLEN);
8135 mono_mb_emit_icon (mb, esize);
8136 mono_mb_emit_byte (mb, CEE_MUL);
8137 mono_mb_emit_byte (mb, CEE_PREFIX1);
8138 mono_mb_emit_byte (mb, CEE_CPBLK);
8142 /* Emit marshalling loop */
8143 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8144 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8145 mono_mb_emit_stloc (mb, index_var);
8146 label2 = mono_mb_get_label (mb);
8147 mono_mb_emit_ldloc (mb, index_var);
8148 mono_mb_emit_ldloc (mb, conv_arg);
8149 mono_mb_emit_byte (mb, CEE_LDLEN);
8150 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8152 /* Emit marshalling code */
8154 g_assert (conv != -1);
8156 mono_mb_emit_ldloc (mb, conv_arg);
8157 mono_mb_emit_ldloc (mb, index_var);
8159 mono_mb_emit_ldloc (mb, src_ptr);
8160 mono_mb_emit_byte (mb, CEE_LDIND_I);
8162 mono_mb_emit_icall (mb, conv_to_icall (conv));
8163 mono_mb_emit_byte (mb, CEE_STELEM_REF);
8166 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8167 mono_mb_emit_exception_marshal_directive (mb, msg);
8171 mono_mb_emit_add_to_local (mb, index_var, 1);
8172 mono_mb_emit_add_to_local (mb, src_ptr, esize);
8174 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8176 mono_mb_patch_branch (mb, label1);
8177 mono_mb_patch_branch (mb, label3);
8181 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
8183 guint32 label1, label2, label3;
8184 int index_var, dest_ptr, loc, esize, param_num, num_elem;
8185 MonoMarshalConv conv;
8186 gboolean is_string = FALSE;
8189 /* Already handled in CONV_IN */
8192 /* These are already checked in CONV_IN */
8193 g_assert (!t->byref);
8194 g_assert (spec->native == MONO_NATIVE_LPARRAY);
8195 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
8197 param_num = spec->data.array_data.param_num;
8198 num_elem = spec->data.array_data.num_elem;
8200 if (spec->data.array_data.elem_mult == 0)
8201 /* param_num is not specified */
8204 if (param_num == -1) {
8205 if (num_elem <= 0) {
8206 g_assert_not_reached ();
8210 /* FIXME: Optimize blittable case */
8212 eklass = klass->element_class;
8213 if (eklass == mono_defaults.string_class) {
8215 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8217 else if (eklass == mono_defaults.stringbuilder_class) {
8219 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
8224 mono_marshal_load_type_info (eklass);
8227 esize = sizeof (gpointer);
8229 esize = mono_class_native_size (eklass, NULL);
8231 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8232 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8235 mono_mb_emit_ldloc (mb, conv_arg);
8236 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8238 mono_mb_emit_ldarg (mb, argnum);
8239 mono_mb_emit_stloc (mb, dest_ptr);
8241 if (eklass->blittable) {
8243 mono_mb_emit_ldarg (mb, argnum);
8245 mono_mb_emit_ldloc (mb, conv_arg);
8246 mono_mb_emit_byte (mb, CEE_CONV_I);
8247 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8248 mono_mb_emit_byte (mb, CEE_ADD);
8250 mono_mb_emit_ldloc (mb, conv_arg);
8251 mono_mb_emit_byte (mb, CEE_LDLEN);
8252 mono_mb_emit_icon (mb, esize);
8253 mono_mb_emit_byte (mb, CEE_MUL);
8254 mono_mb_emit_byte (mb, CEE_PREFIX1);
8255 mono_mb_emit_byte (mb, CEE_CPBLK);
8259 /* Emit marshalling loop */
8260 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8261 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8262 mono_mb_emit_stloc (mb, index_var);
8263 label2 = mono_mb_get_label (mb);
8264 mono_mb_emit_ldloc (mb, index_var);
8265 mono_mb_emit_ldloc (mb, conv_arg);
8266 mono_mb_emit_byte (mb, CEE_LDLEN);
8267 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8269 /* Emit marshalling code */
8271 g_assert (conv != -1);
8274 mono_mb_emit_ldloc (mb, dest_ptr);
8277 mono_mb_emit_ldloc (mb, conv_arg);
8278 mono_mb_emit_ldloc (mb, index_var);
8280 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8282 mono_mb_emit_icall (mb, conv_to_icall (conv));
8283 mono_mb_emit_byte (mb, CEE_STIND_I);
8286 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8287 mono_mb_emit_exception_marshal_directive (mb, msg);
8291 mono_mb_emit_add_to_local (mb, index_var, 1);
8292 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8294 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8296 mono_mb_patch_branch (mb, label1);
8297 mono_mb_patch_branch (mb, label3);
8301 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8303 guint32 label1, label2, label3;
8304 int index_var, src, dest, esize;
8305 MonoMarshalConv conv = -1;
8306 gboolean is_string = FALSE;
8308 g_assert (!t->byref);
8310 eklass = klass->element_class;
8312 mono_marshal_load_type_info (eklass);
8314 if (eklass == mono_defaults.string_class) {
8316 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8319 g_assert_not_reached ();
8323 esize = sizeof (gpointer);
8325 esize = mono_class_native_size (eklass, NULL);
8327 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8328 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8330 mono_mb_emit_stloc (mb, src);
8331 mono_mb_emit_ldloc (mb, src);
8332 mono_mb_emit_stloc (mb, 3);
8334 /* Check for null */
8335 mono_mb_emit_ldloc (mb, src);
8336 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8338 /* Allocate native array */
8339 mono_mb_emit_icon (mb, esize);
8340 mono_mb_emit_ldloc (mb, src);
8341 mono_mb_emit_byte (mb, CEE_LDLEN);
8343 if (eklass == mono_defaults.string_class) {
8344 /* Make the array bigger for the terminating null */
8345 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8346 mono_mb_emit_byte (mb, CEE_ADD);
8348 mono_mb_emit_byte (mb, CEE_MUL);
8349 mono_mb_emit_icall (mb, mono_marshal_alloc);
8350 mono_mb_emit_stloc (mb, dest);
8351 mono_mb_emit_ldloc (mb, dest);
8352 mono_mb_emit_stloc (mb, 3);
8354 /* Emit marshalling loop */
8355 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8356 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8357 mono_mb_emit_stloc (mb, index_var);
8358 label2 = mono_mb_get_label (mb);
8359 mono_mb_emit_ldloc (mb, index_var);
8360 mono_mb_emit_ldloc (mb, src);
8361 mono_mb_emit_byte (mb, CEE_LDLEN);
8362 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8364 /* Emit marshalling code */
8366 g_assert (conv != -1);
8369 mono_mb_emit_ldloc (mb, dest);
8372 mono_mb_emit_ldloc (mb, src);
8373 mono_mb_emit_ldloc (mb, index_var);
8375 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8377 mono_mb_emit_icall (mb, conv_to_icall (conv));
8378 mono_mb_emit_byte (mb, CEE_STIND_I);
8381 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8382 mono_mb_emit_exception_marshal_directive (mb, msg);
8386 mono_mb_emit_add_to_local (mb, index_var, 1);
8387 mono_mb_emit_add_to_local (mb, dest, esize);
8389 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8391 mono_mb_patch_branch (mb, label3);
8392 mono_mb_patch_branch (mb, label1);
8396 g_assert_not_reached ();
8403 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8404 MonoMarshalSpec *spec,
8405 int conv_arg, MonoType **conv_arg_type,
8406 MarshalAction action)
8408 MonoMethodBuilder *mb = m->mb;
8411 case MARSHAL_ACTION_CONV_IN: {
8412 MonoType *local_type;
8413 int variant_bool = 0;
8417 local_type = &mono_defaults.int32_class->byval_arg;
8419 switch (spec->native) {
8420 case MONO_NATIVE_I1:
8421 case MONO_NATIVE_U1:
8422 local_type = &mono_defaults.byte_class->byval_arg;
8424 case MONO_NATIVE_VARIANTBOOL:
8425 local_type = &mono_defaults.int16_class->byval_arg;
8429 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8430 local_type = &mono_defaults.int32_class->byval_arg;
8434 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8435 conv_arg = mono_mb_add_local (mb, local_type);
8436 mono_mb_emit_ldarg (mb, argnum);
8437 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8439 mono_mb_emit_byte (mb, CEE_NEG);
8440 mono_mb_emit_stloc (mb, conv_arg);
8444 case MARSHAL_ACTION_CONV_OUT:
8447 mono_mb_emit_ldarg (mb, argnum);
8448 mono_mb_emit_ldloc (mb, conv_arg);
8449 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8450 mono_mb_emit_byte (mb, CEE_NEG);
8451 mono_mb_emit_byte (mb, CEE_STIND_I1);
8454 case MARSHAL_ACTION_PUSH:
8456 mono_mb_emit_ldloc_addr (mb, conv_arg);
8458 mono_mb_emit_ldarg (mb, argnum);
8461 case MARSHAL_ACTION_CONV_RESULT:
8462 /* maybe we need to make sure that it fits within 8 bits */
8463 mono_mb_emit_stloc (mb, 3);
8467 g_assert_not_reached ();
8474 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8475 MonoMarshalSpec *spec, int conv_arg,
8476 MonoType **conv_arg_type, MarshalAction action)
8478 MonoMethodBuilder *mb = m->mb;
8481 case MARSHAL_ACTION_CONV_IN:
8482 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8483 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8484 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8488 case MARSHAL_ACTION_PUSH:
8489 mono_mb_emit_ldarg (mb, argnum);
8492 case MARSHAL_ACTION_CONV_RESULT:
8493 /* no conversions necessary */
8494 mono_mb_emit_stloc (mb, 3);
8505 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8506 MonoMarshalSpec *spec, int conv_arg,
8507 MonoType **conv_arg_type, MarshalAction action)
8509 MonoMethodBuilder *mb = m->mb;
8512 case MARSHAL_ACTION_PUSH:
8513 /* fixme: dont know how to marshal that. We cant simply
8514 * convert it to a one byte UTF8 character, because an
8515 * unicode character may need more that one byte in UTF8 */
8516 mono_mb_emit_ldarg (mb, argnum);
8519 case MARSHAL_ACTION_CONV_RESULT:
8520 /* fixme: we need conversions here */
8521 mono_mb_emit_stloc (mb, 3);
8532 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8533 MonoMarshalSpec *spec, int conv_arg,
8534 MonoType **conv_arg_type, MarshalAction action)
8536 MonoMethodBuilder *mb = m->mb;
8539 case MARSHAL_ACTION_PUSH:
8540 mono_mb_emit_ldarg (mb, argnum);
8543 case MARSHAL_ACTION_CONV_RESULT:
8544 /* no conversions necessary */
8545 mono_mb_emit_stloc (mb, 3);
8556 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8557 MonoMarshalSpec *spec, int conv_arg,
8558 MonoType **conv_arg_type, MarshalAction action)
8560 /* Ensure that we have marshalling info for this param */
8561 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8563 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8564 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8566 if (spec && spec->native == MONO_NATIVE_ASANY)
8567 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8570 case MONO_TYPE_VALUETYPE:
8571 if (t->data.klass == mono_defaults.handleref_class)
8572 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8574 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8575 case MONO_TYPE_STRING:
8576 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8577 case MONO_TYPE_CLASS:
8578 case MONO_TYPE_OBJECT:
8579 if (spec && spec->native == MONO_NATIVE_STRUCT)
8580 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8583 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8584 spec->native == MONO_NATIVE_IDISPATCH ||
8585 spec->native == MONO_NATIVE_INTERFACE))
8586 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8589 if (mono_defaults.safehandle_class != NULL &&
8590 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8591 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8593 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8594 case MONO_TYPE_ARRAY:
8595 case MONO_TYPE_SZARRAY:
8596 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8597 case MONO_TYPE_BOOLEAN:
8598 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8600 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8601 case MONO_TYPE_CHAR:
8602 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8615 case MONO_TYPE_FNPTR:
8616 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8617 case MONO_TYPE_GENERICINST:
8618 if (mono_type_generic_inst_is_valuetype (t))
8619 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8621 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8628 * mono_marshal_emit_native_wrapper:
8629 * @image: the image to use for looking up custom marshallers
8630 * @sig: The signature of the native function
8631 * @piinfo: Marshalling information
8632 * @mspecs: Marshalling information
8633 * @aot: whenever the created method will be compiled by the AOT compiler
8634 * @method: if non-NULL, the pinvoke method to call
8635 * @check_exceptions: Whenever to check for pending exceptions after the native call
8637 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8640 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8642 EmitMarshalContext m;
8643 MonoMethodSignature *csig;
8645 int i, argnum, *tmp_locals;
8647 static MonoMethodSignature *get_last_error_sig = NULL;
8652 /* we copy the signature, so that we can set pinvoke to 0 */
8653 csig = signature_dup (mb->method->klass->image, sig);
8658 /* we allocate local for use with emit_struct_conv() */
8659 /* allocate local 0 (pointer) src_ptr */
8660 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8661 /* allocate local 1 (pointer) dst_ptr */
8662 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8663 /* allocate local 2 (boolean) delete_old */
8664 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8666 /* delete_old = FALSE */
8667 mono_mb_emit_icon (mb, 0);
8668 mono_mb_emit_stloc (mb, 2);
8670 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8671 /* allocate local 3 to store the return value */
8672 mono_mb_add_local (mb, sig->ret);
8675 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8676 /* Return type custom marshaling */
8678 * Since we can't determine the return type of the unmanaged function,
8679 * we assume it returns a pointer, and pass that pointer to
8680 * MarshalNativeToManaged.
8682 csig->ret = &mono_defaults.int_class->byval_arg;
8685 /* we first do all conversions */
8686 tmp_locals = alloca (sizeof (int) * sig->param_count);
8687 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8689 for (i = 0; i < sig->param_count; i ++) {
8690 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8693 /* push all arguments */
8696 mono_mb_emit_byte (mb, CEE_LDARG_0);
8698 for (i = 0; i < sig->param_count; i++) {
8699 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8702 /* call the native method */
8703 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8705 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8707 g_assert_not_reached ();
8712 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8713 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8714 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8715 mono_mb_emit_calli (mb, csig);
8717 mono_mb_emit_native_call (mb, csig, func);
8721 /* Set LastError if needed */
8722 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8723 if (!get_last_error_sig) {
8724 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8725 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8726 get_last_error_sig->pinvoke = 1;
8729 #ifdef PLATFORM_WIN32
8731 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8732 * clobber its value.
8734 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8735 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8737 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8741 /* convert the result */
8742 if (!sig->ret->byref) {
8743 MonoMarshalSpec *spec = mspecs [0];
8744 type = sig->ret->type;
8746 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8747 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8752 case MONO_TYPE_VOID:
8754 case MONO_TYPE_VALUETYPE:
8755 klass = sig->ret->data.klass;
8756 if (klass->enumtype) {
8757 type = sig->ret->data.klass->enum_basetype->type;
8760 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8774 case MONO_TYPE_FNPTR:
8775 case MONO_TYPE_STRING:
8776 case MONO_TYPE_CLASS:
8777 case MONO_TYPE_OBJECT:
8778 case MONO_TYPE_BOOLEAN:
8779 case MONO_TYPE_ARRAY:
8780 case MONO_TYPE_SZARRAY:
8781 case MONO_TYPE_CHAR:
8783 case MONO_TYPE_GENERICINST:
8784 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8786 case MONO_TYPE_TYPEDBYREF:
8788 g_warning ("return type 0x%02x unknown", sig->ret->type);
8789 g_assert_not_reached ();
8793 mono_mb_emit_stloc (mb, 3);
8797 * Need to call this after converting the result since MONO_VTADDR needs
8798 * to be adjacent to the call instruction.
8800 if (check_exceptions)
8801 emit_thread_interrupt_checkpoint (mb);
8803 /* we need to convert byref arguments back and free string arrays */
8804 for (i = 0; i < sig->param_count; i++) {
8805 MonoType *t = sig->params [i];
8806 MonoMarshalSpec *spec = mspecs [i + 1];
8808 argnum = i + sig->hasthis;
8810 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8811 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8816 case MONO_TYPE_STRING:
8817 case MONO_TYPE_VALUETYPE:
8818 case MONO_TYPE_CLASS:
8819 case MONO_TYPE_OBJECT:
8820 case MONO_TYPE_SZARRAY:
8821 case MONO_TYPE_BOOLEAN:
8822 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8827 if (!MONO_TYPE_IS_VOID(sig->ret))
8828 mono_mb_emit_ldloc (mb, 3);
8830 mono_mb_emit_byte (mb, CEE_RET);
8834 * mono_marshal_get_native_wrapper:
8835 * @method: The MonoMethod to wrap.
8836 * @check_exceptions: Whenever to check for pending exceptions
8838 * generates IL code for the pinvoke wrapper (the generated method
8839 * calls the unmanaged code in piinfo->addr)
8842 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8844 MonoMethodSignature *sig, *csig;
8845 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8846 MonoMethodBuilder *mb;
8847 MonoMarshalSpec **mspecs;
8850 gboolean pinvoke = FALSE;
8853 const char *exc_class = "MissingMethodException";
8854 const char *exc_arg = NULL;
8856 g_assert (method != NULL);
8857 g_assert (mono_method_signature (method)->pinvoke);
8859 cache = method->klass->image->native_wrapper_cache;
8860 if ((res = mono_marshal_find_in_cache (cache, method)))
8863 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8865 return cominterop_get_native_wrapper (method);
8867 g_assert_not_reached ();
8871 sig = mono_method_signature (method);
8873 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8874 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8877 if (!piinfo->addr) {
8879 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8880 exc_arg = "Method contains unsupported native code";
8882 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8884 piinfo->addr = mono_lookup_internal_call (method);
8887 /* hack - redirect certain string constructors to CreateString */
8888 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8889 g_assert (!pinvoke);
8890 g_assert (method->string_ctor);
8891 g_assert (sig->hasthis);
8893 /* CreateString returns a value */
8894 csig = signature_dup (method->klass->image, sig);
8895 csig->ret = &mono_defaults.string_class->byval_arg;
8899 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8900 if (!strcmp ("CreateString", res->name) &&
8901 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8903 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8904 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8906 /* create a wrapper to preserve .ctor in stack trace */
8907 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8909 mono_mb_emit_byte (mb, CEE_LDARG_0);
8910 for (i = 1; i <= csig->param_count; i++)
8911 mono_mb_emit_ldarg (mb, i);
8912 mono_mb_emit_managed_call (mb, res, NULL);
8913 mono_mb_emit_byte (mb, CEE_RET);
8915 /* use native_wrapper_cache because internal calls are looked up there */
8916 res = mono_mb_create_and_cache (cache, method,
8917 mb, csig, csig->param_count + 1);
8925 /* exception will be thrown */
8926 piinfo->addr = NULL;
8927 g_warning ("cannot find CreateString for .ctor");
8930 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8932 mb->method->save_lmf = 1;
8935 * In AOT mode and embedding scenarios, it is possible that the icall is not
8936 * registered in the runtime doing the AOT compilation.
8938 if (!piinfo->addr && !aot) {
8939 mono_mb_emit_exception (mb, exc_class, exc_arg);
8940 csig = signature_dup (method->klass->image, sig);
8942 res = mono_mb_create_and_cache (cache, method,
8943 mb, csig, csig->param_count + 16);
8948 /* internal calls: we simply push all arguments and call the method (no conversions) */
8949 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8951 /* hack - string constructors returns a value */
8952 if (method->string_ctor) {
8953 csig = signature_dup (method->klass->image, sig);
8954 csig->ret = &mono_defaults.string_class->byval_arg;
8959 mono_mb_emit_byte (mb, CEE_LDARG_0);
8961 for (i = 0; i < sig->param_count; i++)
8962 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8965 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8966 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8967 mono_mb_emit_calli (mb, csig);
8969 g_assert (piinfo->addr);
8970 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8972 if (check_exceptions)
8973 emit_thread_interrupt_checkpoint (mb);
8974 mono_mb_emit_byte (mb, CEE_RET);
8976 csig = signature_dup (method->klass->image, csig);
8978 res = mono_mb_create_and_cache (cache, method,
8979 mb, csig, csig->param_count + 16);
8986 g_assert (piinfo->addr);
8988 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8989 mono_method_get_marshal_info (method, mspecs);
8991 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8993 csig = signature_dup (method->klass->image, sig);
8995 res = mono_mb_create_and_cache (cache, method,
8996 mb, csig, csig->param_count + 16);
8999 for (i = sig->param_count; i >= 0; i--)
9001 mono_metadata_free_marshal_spec (mspecs [i]);
9004 /* 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)); */
9010 * mono_marshal_get_native_func_wrapper:
9011 * @image: The image to use for memory allocation and for looking up custom marshallers.
9012 * @sig: The signature of the function
9013 * @func: The native function to wrap
9015 * Returns a wrapper method around native functions, similar to the pinvoke
9019 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
9020 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
9022 MonoMethodSignature *csig;
9024 MonoMethodBuilder *mb;
9029 cache = image->native_wrapper_cache;
9030 if ((res = mono_marshal_find_in_cache (cache, func)))
9033 name = g_strdup_printf ("wrapper_native_%p", func);
9034 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
9035 mb->method->save_lmf = 1;
9037 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
9039 csig = signature_dup (image, sig);
9041 res = mono_mb_create_and_cache (cache, func,
9042 mb, csig, csig->param_count + 16);
9045 /* 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)); */
9050 /* FIXME: moving GC */
9052 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
9054 MonoMethodSignature *sig, *csig;
9060 /* allocate local 0 (pointer) src_ptr */
9061 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9062 /* allocate local 1 (pointer) dst_ptr */
9063 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9064 /* allocate local 2 (boolean) delete_old */
9065 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9067 if (!MONO_TYPE_IS_VOID(sig->ret)) {
9068 /* allocate local 3 to store the return value */
9069 mono_mb_add_local (mb, sig->ret);
9072 mono_mb_emit_icon (mb, 0);
9073 mono_mb_emit_stloc (mb, 2);
9075 /* we first do all conversions */
9076 tmp_locals = alloca (sizeof (int) * sig->param_count);
9077 for (i = 0; i < sig->param_count; i ++) {
9078 MonoType *t = sig->params [i];
9081 case MONO_TYPE_OBJECT:
9082 case MONO_TYPE_CLASS:
9083 case MONO_TYPE_VALUETYPE:
9084 case MONO_TYPE_ARRAY:
9085 case MONO_TYPE_SZARRAY:
9086 case MONO_TYPE_STRING:
9087 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
9096 emit_thread_interrupt_checkpoint (mb);
9098 /* fixme: howto handle this ? */
9101 /* FIXME: need a solution for the moving GC here */
9102 mono_mb_emit_ptr (mb, this);
9105 g_assert_not_reached ();
9109 for (i = 0; i < sig->param_count; i++) {
9110 MonoType *t = sig->params [i];
9112 if (tmp_locals [i]) {
9114 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
9116 mono_mb_emit_ldloc (mb, tmp_locals [i]);
9119 mono_mb_emit_ldarg (mb, i);
9122 mono_mb_emit_managed_call (mb, method, NULL);
9124 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
9125 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9128 if (!sig->ret->byref) {
9129 switch (sig->ret->type) {
9130 case MONO_TYPE_VOID:
9132 case MONO_TYPE_BOOLEAN:
9135 case MONO_TYPE_CHAR:
9147 case MONO_TYPE_OBJECT:
9148 mono_mb_emit_stloc (mb, 3);
9150 case MONO_TYPE_STRING:
9151 csig->ret = &mono_defaults.int_class->byval_arg;
9152 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9154 case MONO_TYPE_VALUETYPE:
9155 case MONO_TYPE_CLASS:
9156 case MONO_TYPE_SZARRAY:
9157 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9160 g_warning ("return type 0x%02x unknown", sig->ret->type);
9161 g_assert_not_reached ();
9164 mono_mb_emit_stloc (mb, 3);
9167 /* Convert byref arguments back */
9168 for (i = 0; i < sig->param_count; i ++) {
9169 MonoType *t = sig->params [i];
9170 MonoMarshalSpec *spec = mspecs [i + 1];
9172 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
9173 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9175 else if (t->byref) {
9177 case MONO_TYPE_CLASS:
9178 case MONO_TYPE_VALUETYPE:
9179 case MONO_TYPE_OBJECT:
9180 case MONO_TYPE_STRING:
9181 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9185 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
9186 /* The [Out] information is encoded in the delegate signature */
9188 case MONO_TYPE_SZARRAY:
9189 case MONO_TYPE_CLASS:
9190 case MONO_TYPE_VALUETYPE:
9191 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9194 g_assert_not_reached ();
9199 if (m->retobj_var) {
9200 mono_mb_emit_ldloc (mb, m->retobj_var);
9201 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9202 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
9205 if (!MONO_TYPE_IS_VOID(sig->ret))
9206 mono_mb_emit_ldloc (mb, 3);
9207 mono_mb_emit_byte (mb, CEE_RET);
9213 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
9215 MonoMethodSignature *sig;
9218 #ifdef PLATFORM_WIN32
9220 * Under windows, delegates passed to native code must use the STDCALL
9221 * calling convention.
9223 csig->call_convention = MONO_CALL_STDCALL;
9226 sig = mono_method_signature (method);
9228 /* Change default calling convention if needed */
9229 /* Why is this a modopt ? */
9230 if (sig->ret && sig->ret->num_mods) {
9231 for (i = 0; i < sig->ret->num_mods; ++i) {
9232 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
9233 g_assert (cmod_class);
9234 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
9235 if (!strcmp (cmod_class->name, "CallConvCdecl"))
9236 csig->call_convention = MONO_CALL_C;
9237 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
9238 csig->call_convention = MONO_CALL_STDCALL;
9239 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
9240 csig->call_convention = MONO_CALL_FASTCALL;
9241 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
9242 csig->call_convention = MONO_CALL_THISCALL;
9249 * generates IL code to call managed methods from unmanaged code
9252 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
9254 static MonoClass *UnmanagedFunctionPointerAttribute;
9255 MonoMethodSignature *sig, *csig, *invoke_sig;
9256 MonoMethodBuilder *mb;
9257 MonoMethod *res, *invoke;
9258 MonoMarshalSpec **mspecs;
9259 MonoMethodPInvoke piinfo;
9262 EmitMarshalContext m;
9264 g_assert (method != NULL);
9265 g_assert (!mono_method_signature (method)->pinvoke);
9268 * FIXME: Should cache the method+delegate type pair, since the same method
9269 * could be called with different delegates, thus different marshalling
9272 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
9273 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
9276 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
9277 invoke_sig = mono_method_signature (invoke);
9279 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9280 mono_method_get_marshal_info (invoke, mspecs);
9282 sig = mono_method_signature (method);
9284 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9287 /* we copy the signature, so that we can modify it */
9289 /* Need to free this later */
9290 csig = mono_metadata_signature_dup (sig);
9292 csig = signature_dup (method->klass->image, sig);
9301 m.image = method->klass->image;
9303 mono_marshal_set_callconv_from_modopt (invoke, csig);
9305 /* Handle the UnmanagedFunctionPointerAttribute */
9306 if (!UnmanagedFunctionPointerAttribute)
9307 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9309 /* The attribute is only available in Net 2.0 */
9310 if (UnmanagedFunctionPointerAttribute) {
9311 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9312 MonoCustomAttrInfo *cinfo;
9315 * The pinvoke attributes are stored in a real custom attribute so we have to
9318 cinfo = mono_custom_attrs_from_class (delegate_klass);
9320 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9322 memset (&piinfo, 0, sizeof (piinfo));
9324 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9326 csig->call_convention = attr->call_conv - 1;
9329 mono_custom_attrs_free (cinfo);
9333 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9336 res = mono_mb_create_and_cache (cache, method,
9337 mb, csig, sig->param_count + 16);
9340 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9344 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9346 mono_metadata_free_marshal_spec (mspecs [i]);
9349 /* 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)); */
9355 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9358 MonoMethodSignature *sig;
9359 MonoMethodBuilder *mb;
9364 method = mono_get_method (image, token, NULL);
9367 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9368 MonoMethodSignature *csig;
9369 MonoMarshalSpec **mspecs;
9370 EmitMarshalContext m;
9372 sig = mono_method_signature (method);
9373 g_assert (!sig->hasthis);
9375 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9376 mono_method_get_marshal_info (method, mspecs);
9378 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9379 csig = signature_dup (image, sig);
9390 mono_marshal_set_callconv_from_modopt (method, csig);
9392 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9394 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
9397 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9400 for (i = sig->param_count; i >= 0; i--)
9402 mono_metadata_free_marshal_spec (mspecs [i]);
9405 return mono_compile_method (method);
9408 sig = mono_method_signature (method);
9409 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9411 param_count = sig->param_count + sig->hasthis;
9412 for (i = 0; i < param_count; i++)
9413 mono_mb_emit_ldarg (mb, i);
9415 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9416 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9418 mono_mb_emit_op (mb, CEE_CALL, method);
9419 mono_mb_emit_byte (mb, CEE_RET);
9422 method = mono_mb_create_method (mb, sig, param_count);
9425 return mono_compile_method (method);
9428 static MonoReflectionType *
9429 type_from_handle (MonoType *handle)
9431 MonoDomain *domain = mono_domain_get ();
9432 MonoClass *klass = mono_class_from_mono_type (handle);
9434 MONO_ARCH_SAVE_REGS;
9436 mono_class_init (klass);
9437 return mono_type_get_object (domain, handle);
9441 * mono_marshal_get_isinst:
9442 * @klass: the type of the field
9444 * This method generates a function which can be used to check if an object is
9445 * an instance of the given type, icluding the case where the object is a proxy.
9446 * The generated function has the following signature:
9447 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9450 mono_marshal_get_isinst (MonoClass *klass)
9452 static MonoMethodSignature *isint_sig = NULL;
9455 int pos_was_ok, pos_failed, pos_end, pos_end2;
9457 MonoMethodBuilder *mb;
9459 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9460 if ((res = mono_marshal_find_in_cache (cache, klass)))
9464 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9465 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9466 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9467 isint_sig->pinvoke = 0;
9470 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9471 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9474 mb->method->save_lmf = 1;
9476 /* check if the object is a proxy that needs special cast */
9477 mono_mb_emit_ldarg (mb, 0);
9478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9479 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9481 /* The result of MONO_ISINST can be:
9482 0) the type check succeeded
9483 1) the type check did not succeed
9484 2) a CanCastTo call is needed */
9486 mono_mb_emit_byte (mb, CEE_DUP);
9487 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9489 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9490 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9492 /* get the real proxy from the transparent proxy*/
9494 mono_mb_emit_ldarg (mb, 0);
9495 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9496 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9500 mono_mb_patch_branch (mb, pos_failed);
9501 mono_mb_emit_byte (mb, CEE_LDNULL);
9502 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9506 mono_mb_patch_branch (mb, pos_was_ok);
9507 mono_mb_emit_byte (mb, CEE_POP);
9508 mono_mb_emit_ldarg (mb, 0);
9512 mono_mb_patch_branch (mb, pos_end);
9513 mono_mb_patch_branch (mb, pos_end2);
9514 mono_mb_emit_byte (mb, CEE_RET);
9516 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9523 * mono_marshal_get_castclass:
9524 * @klass: the type of the field
9526 * This method generates a function which can be used to cast an object to
9527 * an instance of the given type, icluding the case where the object is a proxy.
9528 * The generated function has the following signature:
9529 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9532 mono_marshal_get_castclass (MonoClass *klass)
9534 static MonoMethodSignature *castclass_sig = NULL;
9537 int pos_was_ok, pos_was_ok2;
9539 MonoMethodBuilder *mb;
9541 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9542 if ((res = mono_marshal_find_in_cache (cache, klass)))
9545 if (!castclass_sig) {
9546 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9547 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9548 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9549 castclass_sig->pinvoke = 0;
9552 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9553 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9556 mb->method->save_lmf = 1;
9558 /* check if the object is a proxy that needs special cast */
9559 mono_mb_emit_ldarg (mb, 0);
9560 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9561 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9563 /* The result of MONO_ISINST can be:
9564 0) the cast is valid
9565 1) cast of unknown proxy type
9566 or an exception if the cast is is invalid
9569 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9571 /* get the real proxy from the transparent proxy*/
9573 mono_mb_emit_ldarg (mb, 0);
9574 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9575 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9578 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9581 mono_mb_patch_branch (mb, pos_was_ok);
9582 mono_mb_patch_branch (mb, pos_was_ok2);
9583 mono_mb_emit_ldarg (mb, 0);
9586 mono_mb_emit_byte (mb, CEE_RET);
9588 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9595 mono_marshal_get_proxy_cancast (MonoClass *klass)
9597 static MonoMethodSignature *isint_sig = NULL;
9600 int pos_failed, pos_end;
9602 MonoMethod *can_cast_to;
9603 MonoMethodDesc *desc;
9604 MonoMethodBuilder *mb;
9606 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9607 if ((res = mono_marshal_find_in_cache (cache, klass)))
9611 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9612 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9613 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9614 isint_sig->pinvoke = 0;
9617 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9618 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9621 mb->method->save_lmf = 1;
9623 /* get the real proxy from the transparent proxy*/
9624 mono_mb_emit_ldarg (mb, 0);
9625 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9626 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9628 /* get the reflection type from the type handle */
9629 mono_mb_emit_ptr (mb, &klass->byval_arg);
9630 mono_mb_emit_icall (mb, type_from_handle);
9632 mono_mb_emit_ldarg (mb, 0);
9634 /* make the call to CanCastTo (type, ob) */
9635 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9636 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9637 g_assert (can_cast_to);
9638 mono_method_desc_free (desc);
9639 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9641 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9643 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9644 mono_mb_emit_ptr (mb, &klass->byval_arg);
9645 mono_mb_emit_icall (mb, type_from_handle);
9646 mono_mb_emit_ldarg (mb, 0);
9648 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9649 emit_thread_interrupt_checkpoint (mb);
9651 mono_mb_emit_ldarg (mb, 0);
9652 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9656 mono_mb_patch_branch (mb, pos_failed);
9657 mono_mb_emit_byte (mb, CEE_LDNULL);
9661 mono_mb_patch_branch (mb, pos_end);
9662 mono_mb_emit_byte (mb, CEE_RET);
9664 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9671 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9674 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9675 klass = mono_class_from_mono_type (rtype->type);
9676 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9680 * mono_marshal_get_struct_to_ptr:
9683 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9686 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9688 MonoMethodBuilder *mb;
9689 static MonoMethod *stoptr = NULL;
9692 g_assert (klass != NULL);
9694 mono_marshal_load_type_info (klass);
9696 if (klass->marshal_info->str_to_ptr)
9697 return klass->marshal_info->str_to_ptr;
9700 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9703 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9705 if (klass->blittable) {
9706 mono_mb_emit_byte (mb, CEE_LDARG_1);
9707 mono_mb_emit_byte (mb, CEE_LDARG_0);
9708 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9709 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9710 mono_mb_emit_byte (mb, CEE_PREFIX1);
9711 mono_mb_emit_byte (mb, CEE_CPBLK);
9714 /* allocate local 0 (pointer) src_ptr */
9715 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9716 /* allocate local 1 (pointer) dst_ptr */
9717 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9718 /* allocate local 2 (boolean) delete_old */
9719 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9720 mono_mb_emit_byte (mb, CEE_LDARG_2);
9721 mono_mb_emit_stloc (mb, 2);
9723 /* initialize src_ptr to point to the start of object data */
9724 mono_mb_emit_byte (mb, CEE_LDARG_0);
9725 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9726 mono_mb_emit_stloc (mb, 0);
9728 /* initialize dst_ptr */
9729 mono_mb_emit_byte (mb, CEE_LDARG_1);
9730 mono_mb_emit_stloc (mb, 1);
9732 emit_struct_conv (mb, klass, FALSE);
9735 mono_mb_emit_byte (mb, CEE_RET);
9737 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9740 klass->marshal_info->str_to_ptr = res;
9745 * mono_marshal_get_ptr_to_struct:
9748 * generates IL code for PtrToStructure (IntPtr src, object structure)
9751 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9753 MonoMethodBuilder *mb;
9754 static MonoMethodSignature *ptostr = NULL;
9757 g_assert (klass != NULL);
9759 mono_marshal_load_type_info (klass);
9761 if (klass->marshal_info->ptr_to_str)
9762 return klass->marshal_info->ptr_to_str;
9765 MonoMethodSignature *sig;
9767 /* Create the signature corresponding to
9768 static void PtrToStructure (IntPtr ptr, object structure);
9769 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9770 sig = mono_create_icall_signature ("void ptr object");
9771 sig = signature_dup (mono_defaults.corlib, sig);
9773 mono_memory_barrier ();
9777 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9779 if (klass->blittable) {
9780 mono_mb_emit_byte (mb, CEE_LDARG_1);
9781 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9782 mono_mb_emit_byte (mb, CEE_LDARG_0);
9783 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9784 mono_mb_emit_byte (mb, CEE_PREFIX1);
9785 mono_mb_emit_byte (mb, CEE_CPBLK);
9788 /* allocate local 0 (pointer) src_ptr */
9789 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9790 /* allocate local 1 (pointer) dst_ptr */
9791 mono_mb_add_local (mb, &klass->this_arg);
9793 /* initialize src_ptr to point to the start of object data */
9794 mono_mb_emit_byte (mb, CEE_LDARG_0);
9795 mono_mb_emit_stloc (mb, 0);
9797 /* initialize dst_ptr */
9798 mono_mb_emit_byte (mb, CEE_LDARG_1);
9799 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9800 mono_mb_emit_stloc (mb, 1);
9802 emit_struct_conv (mb, klass, TRUE);
9805 mono_mb_emit_byte (mb, CEE_RET);
9807 res = mono_mb_create_method (mb, ptostr, 0);
9810 klass->marshal_info->ptr_to_str = res;
9815 * generates IL code for the synchronized wrapper: the generated method
9816 * calls METHOD while locking 'this' or the parent type.
9819 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9821 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9822 MonoMethodSignature *sig;
9823 MonoExceptionClause *clause;
9824 MonoMethodHeader *header;
9825 MonoMethodBuilder *mb;
9828 int i, pos, this_local, ret_local = 0;
9832 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9835 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9836 if ((res = mono_marshal_find_in_cache (cache, method)))
9839 sig = signature_dup (method->klass->image, mono_method_signature (method));
9842 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9845 if (!MONO_TYPE_IS_VOID (sig->ret))
9846 ret_local = mono_mb_add_local (mb, sig->ret);
9848 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9849 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9850 /* This will throw the type load exception when the wrapper is compiled */
9851 mono_mb_emit_byte (mb, CEE_LDNULL);
9852 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9853 mono_mb_emit_byte (mb, CEE_POP);
9855 if (!MONO_TYPE_IS_VOID (sig->ret))
9856 mono_mb_emit_ldloc (mb, ret_local);
9857 mono_mb_emit_byte (mb, CEE_RET);
9859 res = mono_mb_create_and_cache (cache, method,
9860 mb, sig, sig->param_count + 16);
9867 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9869 mono_loader_lock ();
9870 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9871 mono_loader_unlock ();
9872 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9874 mono_loader_lock ();
9876 if (!enter_method) {
9877 MonoMethodDesc *desc;
9879 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9880 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9881 g_assert (enter_method);
9882 mono_method_desc_free (desc);
9884 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9885 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9886 g_assert (exit_method);
9887 mono_method_desc_free (desc);
9889 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9890 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9891 g_assert (gettypefromhandle_method);
9892 mono_method_desc_free (desc);
9895 mono_loader_unlock ();
9897 /* Push this or the type object */
9898 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9899 /* We have special handling for this in the JIT */
9900 int index = mono_mb_add_data (mb, method->klass);
9901 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9902 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9903 mono_mb_emit_i4 (mb, index);
9905 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9908 mono_mb_emit_ldarg (mb, 0);
9909 mono_mb_emit_stloc (mb, this_local);
9911 /* Call Monitor::Enter() */
9912 mono_mb_emit_ldloc (mb, this_local);
9913 mono_mb_emit_managed_call (mb, enter_method, NULL);
9915 clause->try_offset = mono_mb_get_label (mb);
9917 /* Call the method */
9919 mono_mb_emit_ldarg (mb, 0);
9920 for (i = 0; i < sig->param_count; i++)
9921 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9923 mono_mb_emit_managed_call (mb, method, NULL);
9925 if (!MONO_TYPE_IS_VOID (sig->ret))
9926 mono_mb_emit_stloc (mb, ret_local);
9928 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9930 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9931 clause->handler_offset = mono_mb_get_label (mb);
9933 /* Call Monitor::Exit() */
9934 mono_mb_emit_ldloc (mb, this_local);
9935 mono_mb_emit_managed_call (mb, exit_method, NULL);
9936 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9938 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9940 mono_mb_patch_branch (mb, pos);
9941 if (!MONO_TYPE_IS_VOID (sig->ret))
9942 mono_mb_emit_ldloc (mb, ret_local);
9943 mono_mb_emit_byte (mb, CEE_RET);
9945 res = mono_mb_create_and_cache (cache, method,
9946 mb, sig, sig->param_count + 16);
9949 header = ((MonoMethodNormal *)res)->header;
9950 header->num_clauses = 1;
9951 header->clauses = clause;
9958 * the returned method calls 'method' unboxing the this argument
9961 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9963 MonoMethodSignature *sig = mono_method_signature (method);
9965 MonoMethodBuilder *mb;
9969 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9970 if ((res = mono_marshal_find_in_cache (cache, method)))
9973 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9975 g_assert (sig->hasthis);
9977 mono_mb_emit_ldarg (mb, 0);
9978 mono_mb_emit_icon (mb, sizeof (MonoObject));
9979 mono_mb_emit_byte (mb, CEE_ADD);
9980 for (i = 0; i < sig->param_count; ++i)
9981 mono_mb_emit_ldarg (mb, i + 1);
9982 mono_mb_emit_managed_call (mb, method, NULL);
9983 mono_mb_emit_byte (mb, CEE_RET);
9985 res = mono_mb_create_and_cache (cache, method,
9986 mb, sig, sig->param_count + 16);
9989 /* 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)); */
9995 mono_marshal_get_stelemref ()
9997 static MonoMethod* ret = NULL;
9998 MonoMethodSignature *sig;
9999 MonoMethodBuilder *mb;
10001 guint32 b1, b2, b3, b4;
10003 int aklass, vklass;
10004 int array_slot_addr;
10009 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10012 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10014 /* void stelemref (void* array, int idx, void* value) */
10015 sig->ret = &mono_defaults.void_class->byval_arg;
10016 sig->params [0] = &mono_defaults.object_class->byval_arg;
10017 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10018 sig->params [2] = &mono_defaults.object_class->byval_arg;
10020 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10021 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10022 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10026 <ldelema (bound check)>
10030 aklass = array->vtable->klass->element_class;
10031 vklass = value->vtable->klass;
10033 if (vklass->idepth < aklass->idepth)
10036 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10040 *array_slot_addr = value;
10044 if (mono_object_isinst (value, aklass))
10047 throw new ArrayTypeMismatchException ();
10050 /* ldelema (implicit bound check) */
10051 mono_mb_emit_ldarg (mb, 0);
10052 mono_mb_emit_ldarg (mb, 1);
10053 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10054 mono_mb_emit_stloc (mb, array_slot_addr);
10056 /* if (!value) goto do_store */
10057 mono_mb_emit_ldarg (mb, 2);
10058 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10060 /* aklass = array->vtable->klass->element_class */
10061 mono_mb_emit_ldarg (mb, 0);
10062 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10063 mono_mb_emit_byte (mb, CEE_LDIND_I);
10064 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10065 mono_mb_emit_byte (mb, CEE_LDIND_I);
10066 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10067 mono_mb_emit_byte (mb, CEE_LDIND_I);
10068 mono_mb_emit_stloc (mb, aklass);
10070 /* vklass = value->vtable->klass */
10071 mono_mb_emit_ldarg (mb, 2);
10072 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10073 mono_mb_emit_byte (mb, CEE_LDIND_I);
10074 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10075 mono_mb_emit_byte (mb, CEE_LDIND_I);
10076 mono_mb_emit_stloc (mb, vklass);
10078 /* if (vklass->idepth < aklass->idepth) goto failue */
10079 mono_mb_emit_ldloc (mb, vklass);
10080 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10081 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10083 mono_mb_emit_ldloc (mb, aklass);
10084 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10085 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10087 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10089 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10090 mono_mb_emit_ldloc (mb, vklass);
10091 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10092 mono_mb_emit_byte (mb, CEE_LDIND_I);
10094 mono_mb_emit_ldloc (mb, aklass);
10095 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10096 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10097 mono_mb_emit_icon (mb, 1);
10098 mono_mb_emit_byte (mb, CEE_SUB);
10099 mono_mb_emit_icon (mb, sizeof (void*));
10100 mono_mb_emit_byte (mb, CEE_MUL);
10101 mono_mb_emit_byte (mb, CEE_ADD);
10102 mono_mb_emit_byte (mb, CEE_LDIND_I);
10104 mono_mb_emit_ldloc (mb, aklass);
10106 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10108 copy_pos = mono_mb_get_label (mb);
10110 mono_mb_patch_branch (mb, b1);
10111 mono_mb_emit_ldloc (mb, array_slot_addr);
10112 mono_mb_emit_ldarg (mb, 2);
10113 mono_mb_emit_byte (mb, CEE_STIND_REF);
10115 mono_mb_emit_byte (mb, CEE_RET);
10118 mono_mb_patch_branch (mb, b2);
10119 mono_mb_patch_branch (mb, b3);
10121 mono_mb_emit_ldarg (mb, 2);
10122 mono_mb_emit_ldloc (mb, aklass);
10123 mono_mb_emit_icall (mb, mono_object_isinst);
10125 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10126 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10127 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10129 mono_mb_emit_byte (mb, CEE_RET);
10130 ret = mono_mb_create_method (mb, sig, 4);
10138 MonoMethod *method;
10141 /* LOCKING: vars accessed under the marshal lock */
10142 static ArrayElemAddr *elem_addr_cache = NULL;
10143 static int elem_addr_cache_size = 0;
10144 static int elem_addr_cache_next = 0;
10147 * mono_marshal_get_array_address:
10148 * @rank: rank of the array type
10149 * @elem_size: size in bytes of an element of an array.
10151 * Returns a MonoMethd that implements the code to get the address
10152 * of an element in a multi-dimenasional array of @rank dimensions.
10153 * The returned method takes an array as the first argument and then
10154 * @rank indexes for the @rank dimensions.
10157 mono_marshal_get_array_address (int rank, int elem_size)
10160 MonoMethodBuilder *mb;
10161 MonoMethodSignature *sig;
10162 int i, bounds, ind, realidx;
10163 int branch_pos, *branch_positions;
10167 mono_marshal_lock ();
10168 for (i = 0; i < elem_addr_cache_next; ++i) {
10169 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10170 ret = elem_addr_cache [i].method;
10174 mono_marshal_unlock ();
10178 branch_positions = g_new0 (int, rank);
10180 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10182 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10183 sig->ret = &mono_defaults.int_class->byval_arg;
10184 sig->params [0] = &mono_defaults.object_class->byval_arg;
10185 for (i = 0; i < rank; ++i) {
10186 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10189 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10191 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10192 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10193 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10195 /* bounds = array->bounds; */
10196 mono_mb_emit_ldarg (mb, 0);
10197 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10198 mono_mb_emit_byte (mb, CEE_LDIND_I);
10199 mono_mb_emit_stloc (mb, bounds);
10201 /* ind is the overall element index, realidx is the partial index in a single dimension */
10202 /* ind = idx0 - bounds [0].lower_bound */
10203 mono_mb_emit_ldarg (mb, 1);
10204 mono_mb_emit_ldloc (mb, bounds);
10205 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10206 mono_mb_emit_byte (mb, CEE_ADD);
10207 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10208 mono_mb_emit_byte (mb, CEE_SUB);
10209 mono_mb_emit_stloc (mb, ind);
10210 /* if (ind >= bounds [0].length) goto exeception; */
10211 mono_mb_emit_ldloc (mb, ind);
10212 mono_mb_emit_ldloc (mb, bounds);
10213 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10214 mono_mb_emit_byte (mb, CEE_ADD);
10215 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10216 /* note that we use unsigned comparison */
10217 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10219 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10220 * We could also decide to ignore the passed elem_size and get it
10221 * from the array object, to reduce the number of methods we generate:
10222 * the additional cost is 3 memory loads and a non-immediate mul.
10224 for (i = 1; i < rank; ++i) {
10225 /* realidx = idxi - bounds [i].lower_bound */
10226 mono_mb_emit_ldarg (mb, 1 + i);
10227 mono_mb_emit_ldloc (mb, bounds);
10228 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10229 mono_mb_emit_byte (mb, CEE_ADD);
10230 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10231 mono_mb_emit_byte (mb, CEE_SUB);
10232 mono_mb_emit_stloc (mb, realidx);
10233 /* if (realidx >= bounds [i].length) goto exeception; */
10234 mono_mb_emit_ldloc (mb, realidx);
10235 mono_mb_emit_ldloc (mb, bounds);
10236 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10237 mono_mb_emit_byte (mb, CEE_ADD);
10238 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10239 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10240 /* ind = ind * bounds [i].length + realidx */
10241 mono_mb_emit_ldloc (mb, ind);
10242 mono_mb_emit_ldloc (mb, bounds);
10243 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10244 mono_mb_emit_byte (mb, CEE_ADD);
10245 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10246 mono_mb_emit_byte (mb, CEE_MUL);
10247 mono_mb_emit_ldloc (mb, realidx);
10248 mono_mb_emit_byte (mb, CEE_ADD);
10249 mono_mb_emit_stloc (mb, ind);
10252 /* return array->vector + ind * element_size */
10253 mono_mb_emit_ldarg (mb, 0);
10254 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10255 mono_mb_emit_ldloc (mb, ind);
10256 mono_mb_emit_icon (mb, elem_size);
10257 mono_mb_emit_byte (mb, CEE_MUL);
10258 mono_mb_emit_byte (mb, CEE_ADD);
10259 mono_mb_emit_byte (mb, CEE_RET);
10261 /* patch the branches to get here and throw */
10262 for (i = 1; i < rank; ++i) {
10263 mono_mb_patch_branch (mb, branch_positions [i]);
10265 mono_mb_patch_branch (mb, branch_pos);
10266 /* throw exception */
10267 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10269 g_free (branch_positions);
10270 ret = mono_mb_create_method (mb, sig, 4);
10273 /* cache the result */
10275 mono_marshal_lock ();
10276 for (i = 0; i < elem_addr_cache_next; ++i) {
10277 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10278 /* FIXME: free ret */
10279 ret = elem_addr_cache [i].method;
10285 if (elem_addr_cache_next >= elem_addr_cache_size) {
10286 int new_size = elem_addr_cache_size + 4;
10287 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10288 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10289 g_free (elem_addr_cache);
10290 elem_addr_cache = new_array;
10291 elem_addr_cache_size = new_size;
10293 elem_addr_cache [elem_addr_cache_next].rank = rank;
10294 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10295 elem_addr_cache [elem_addr_cache_next].method = ret;
10297 mono_marshal_unlock ();
10302 mono_marshal_get_write_barrier (void)
10304 static MonoMethod* ret = NULL;
10305 MonoMethodSignature *sig;
10306 MonoMethodBuilder *mb;
10312 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
10314 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10316 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
10317 sig->ret = &mono_defaults.void_class->byval_arg;
10318 sig->params [0] = &mono_defaults.object_class->this_arg;
10319 sig->params [1] = &mono_defaults.object_class->byval_arg;
10321 /* just the store right now: add an hook for the GC to use, maybe something
10322 * that can be used for stelemref as well
10323 * We need a write barrier variant to be used with struct copies as well, though
10324 * there are also other approaches possible, like writing a wrapper specific to
10325 * the struct or to the reference pattern in the struct...
10326 * Depending on the GC, we may want variants that take the object we store to
10327 * when it is available.
10329 mono_mb_emit_ldarg (mb, 0);
10330 mono_mb_emit_ldarg (mb, 1);
10331 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
10332 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
10334 mono_mb_emit_byte (mb, CEE_RET);
10336 ret = mono_mb_create_method (mb, sig, max_stack);
10342 mono_marshal_alloc (gulong size)
10346 #ifdef PLATFORM_WIN32
10347 res = CoTaskMemAlloc (size);
10349 res = g_try_malloc ((gulong)size);
10351 mono_gc_out_of_memory ((gulong)size);
10357 mono_marshal_free (gpointer ptr)
10359 #ifdef PLATFORM_WIN32
10360 CoTaskMemFree (ptr);
10367 mono_marshal_free_array (gpointer *ptr, int size)
10374 for (i = 0; i < size; i++)
10380 mono_marshal_string_to_utf16 (MonoString *s)
10382 return s ? mono_string_chars (s) : NULL;
10386 mono_marshal_string_to_utf16_copy (MonoString *s)
10391 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10392 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10393 res [mono_string_length (s)] = 0;
10399 * mono_marshal_set_last_error:
10401 * This function is invoked to set the last error value from a P/Invoke call
10402 * which has SetLastError set.
10405 mono_marshal_set_last_error (void)
10408 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10410 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10415 mono_marshal_set_last_error_windows (int error)
10418 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10423 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10424 gpointer dest, gint32 length)
10429 MONO_ARCH_SAVE_REGS;
10431 MONO_CHECK_ARG_NULL (src);
10432 MONO_CHECK_ARG_NULL (dest);
10434 if (src->obj.vtable->klass->rank != 1)
10435 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10436 if (start_index < 0)
10437 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10439 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10440 if (start_index + length > mono_array_length (src))
10441 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10443 element_size = mono_array_element_size (src->obj.vtable->klass);
10445 /* no references should be involved */
10446 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10448 memcpy (dest, source_addr, length * element_size);
10452 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10453 MonoArray *dest, gint32 length)
10458 MONO_ARCH_SAVE_REGS;
10460 MONO_CHECK_ARG_NULL (src);
10461 MONO_CHECK_ARG_NULL (dest);
10463 if (dest->obj.vtable->klass->rank != 1)
10464 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10465 if (start_index < 0)
10466 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10468 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10469 if (start_index + length > mono_array_length (dest))
10470 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10472 element_size = mono_array_element_size (dest->obj.vtable->klass);
10474 /* no references should be involved */
10475 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10477 memcpy (dest_addr, src, length * element_size);
10480 #if NO_UNALIGNED_ACCESS
10481 #define RETURN_UNALIGNED(type, addr) \
10484 memcpy(&val, p + offset, sizeof(val)); \
10487 #define WRITE_UNALIGNED(type, addr, val) \
10488 memcpy(addr, &val, sizeof(type))
10490 #define RETURN_UNALIGNED(type, addr) \
10491 return *(type*)(p + offset);
10492 #define WRITE_UNALIGNED(type, addr, val) \
10493 (*(type *)(addr) = (val))
10497 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10501 MONO_ARCH_SAVE_REGS;
10503 RETURN_UNALIGNED(gpointer, p + offset);
10507 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10511 MONO_ARCH_SAVE_REGS;
10513 return *(unsigned char*)(p + offset);
10517 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10521 MONO_ARCH_SAVE_REGS;
10523 RETURN_UNALIGNED(gint16, p + offset);
10527 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10531 MONO_ARCH_SAVE_REGS;
10533 RETURN_UNALIGNED(gint32, p + offset);
10537 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10541 MONO_ARCH_SAVE_REGS;
10543 RETURN_UNALIGNED(gint64, p + offset);
10547 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10551 MONO_ARCH_SAVE_REGS;
10553 *(unsigned char*)(p + offset) = val;
10557 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10561 MONO_ARCH_SAVE_REGS;
10563 WRITE_UNALIGNED(gpointer, p + offset, val);
10567 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10571 MONO_ARCH_SAVE_REGS;
10573 WRITE_UNALIGNED(gint16, p + offset, val);
10577 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10581 MONO_ARCH_SAVE_REGS;
10583 WRITE_UNALIGNED(gint32, p + offset, val);
10587 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10591 MONO_ARCH_SAVE_REGS;
10593 WRITE_UNALIGNED(gint64, p + offset, val);
10597 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10599 MONO_ARCH_SAVE_REGS;
10604 return mono_string_new (mono_domain_get (), ptr);
10608 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10610 MONO_ARCH_SAVE_REGS;
10613 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10614 g_assert_not_reached ();
10617 return mono_string_new_len (mono_domain_get (), ptr, len);
10622 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10624 MonoDomain *domain = mono_domain_get ();
10628 MONO_ARCH_SAVE_REGS;
10636 return mono_string_new_utf16 (domain, ptr, len);
10640 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10642 MonoDomain *domain = mono_domain_get ();
10644 MONO_ARCH_SAVE_REGS;
10647 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10648 g_assert_not_reached ();
10651 return mono_string_new_utf16 (domain, ptr, len);
10656 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10658 MONO_ARCH_SAVE_REGS;
10660 return mono_string_from_bstr(ptr);
10664 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10666 MONO_ARCH_SAVE_REGS;
10668 return mono_string_to_bstr(ptr);
10673 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10674 int (STDCALL *AddRef)(gpointer pUnk);
10675 int (STDCALL *Release)(gpointer pUnk);
10679 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10681 MONO_ARCH_SAVE_REGS;
10683 mono_free_bstr (ptr);
10687 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10690 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10694 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10697 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10701 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10704 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10707 #ifndef DISABLE_COM
10709 #define MONO_S_OK 0x00000000L
10710 #define MONO_E_NOINTERFACE 0x80004002L
10711 #define MONO_E_NOTIMPL 0x80004001L
10713 static gboolean cominterop_can_support_dispatch (MonoClass* klass)
10715 if (!(klass->flags & TYPE_ATTRIBUTE_PUBLIC) )
10718 if (!cominterop_com_visible (klass))
10725 cominterop_get_idispatch_for_object (MonoObject* object)
10730 if (cominterop_object_is_rcw (object)) {
10731 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10732 mono_defaults.idispatch_class, TRUE);
10735 MonoClass* klass = mono_object_class (object);
10736 if (!cominterop_can_support_dispatch (klass) )
10737 cominterop_raise_hr_exception (MONO_E_NOINTERFACE);
10738 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10745 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10747 #ifndef DISABLE_COM
10751 mono_init_com_types ();
10753 if (cominterop_object_is_rcw (object)) {
10754 MonoClass *klass = NULL;
10755 MonoRealProxy* real_proxy = NULL;
10758 klass = mono_object_class (object);
10759 if (klass != mono_defaults.transparent_proxy_class) {
10760 g_assert_not_reached ();
10764 real_proxy = ((MonoTransparentProxy*)object)->rp;
10766 g_assert_not_reached ();
10770 klass = mono_object_class (real_proxy);
10771 if (klass != mono_defaults.com_interop_proxy_class) {
10772 g_assert_not_reached ();
10776 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10777 g_assert_not_reached ();
10781 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10784 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10787 g_assert_not_reached ();
10792 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10794 #ifndef DISABLE_COM
10795 MonoObject* object = NULL;
10800 /* see if it is a CCW */
10801 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10805 g_assert_not_reached ();
10810 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10812 #ifndef DISABLE_COM
10813 mono_init_com_types ();
10815 return cominterop_get_idispatch_for_object (object);
10817 g_assert_not_reached ();
10822 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10824 #ifndef DISABLE_COM
10825 MonoClass* klass = NULL;
10828 g_assert (type->type);
10829 klass = mono_type_get_class (type->type);
10831 itf = cominterop_get_ccw (object, klass);
10835 g_assert_not_reached ();
10841 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10843 #ifndef DISABLE_COM
10844 return (MonoBoolean)cominterop_object_is_rcw (object);
10846 g_assert_not_reached ();
10851 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10853 #ifndef DISABLE_COM
10854 MonoComInteropProxy* proxy = NULL;
10855 gint32 ref_count = 0;
10858 g_assert (cominterop_object_is_rcw (object));
10860 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10863 ref_count = InterlockedDecrement (&proxy->ref_count);
10864 g_assert (ref_count >= 0);
10866 if (ref_count == 0)
10867 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10871 g_assert_not_reached ();
10876 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10878 MONO_ARCH_SAVE_REGS;
10880 #ifndef DISABLE_COM
10881 return cominterop_get_com_slot_for_method (m->method);
10883 g_assert_not_reached ();
10888 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10890 MONO_ARCH_SAVE_REGS;
10892 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10896 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10902 MONO_ARCH_SAVE_REGS;
10904 MONO_CHECK_ARG_NULL (rtype);
10906 type = rtype->type;
10907 klass = mono_class_from_mono_type (type);
10908 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10910 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10912 MonoException *exc;
10914 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10915 exc = mono_get_exception_argument ("t", msg);
10917 mono_raise_exception (exc);
10921 return mono_class_native_size (klass, NULL);
10925 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10927 MonoMethod *method;
10930 MONO_ARCH_SAVE_REGS;
10932 MONO_CHECK_ARG_NULL (obj);
10933 MONO_CHECK_ARG_NULL (dst);
10935 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10939 pa [2] = &delete_old;
10941 mono_runtime_invoke (method, NULL, pa, NULL);
10945 ptr_to_structure (gpointer src, MonoObject *dst)
10947 MonoMethod *method;
10950 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10955 mono_runtime_invoke (method, NULL, pa, NULL);
10959 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10963 MONO_ARCH_SAVE_REGS;
10965 MONO_CHECK_ARG_NULL (src);
10966 MONO_CHECK_ARG_NULL (dst);
10968 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10970 if (t->type == MONO_TYPE_VALUETYPE) {
10971 MonoException *exc;
10974 tmp = g_strdup_printf ("Destination is a boxed value type.");
10975 exc = mono_get_exception_argument ("dst", tmp);
10978 mono_raise_exception (exc);
10982 ptr_to_structure (src, dst);
10986 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10988 MonoDomain *domain = mono_domain_get ();
10991 MONO_ARCH_SAVE_REGS;
10993 MONO_CHECK_ARG_NULL (src);
10994 MONO_CHECK_ARG_NULL (type);
10996 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10998 ptr_to_structure (src, res);
11004 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11006 MonoMarshalType *info;
11009 int match_index = -1;
11011 MONO_ARCH_SAVE_REGS;
11013 MONO_CHECK_ARG_NULL (type);
11014 MONO_CHECK_ARG_NULL (field_name);
11016 fname = mono_string_to_utf8 (field_name);
11017 klass = mono_class_from_mono_type (type->type);
11019 while (klass && match_index == -1) {
11020 MonoClassField* field;
11022 gpointer iter = NULL;
11023 while ((field = mono_class_get_fields (klass, &iter))) {
11024 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11026 if (!strcmp (fname, mono_field_get_name (field))) {
11033 if (match_index == -1)
11034 klass = klass->parent;
11039 if(match_index == -1) {
11040 MonoException* exc;
11043 /* Get back original class instance */
11044 klass = mono_class_from_mono_type (type->type);
11046 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11047 exc = mono_get_exception_argument ("fieldName", tmp);
11050 mono_raise_exception ((MonoException*)exc);
11053 info = mono_marshal_load_type_info (klass);
11054 return info->fields [match_index].offset;
11058 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11060 #ifdef PLATFORM_WIN32
11063 tres = mono_string_to_utf8 (string);
11067 len = strlen (tres) + 1;
11068 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11069 memcpy (ret, tres, len);
11074 return mono_string_to_utf8 (string);
11079 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11081 MONO_ARCH_SAVE_REGS;
11083 if (string == NULL)
11086 #ifdef PLATFORM_WIN32
11087 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11088 ((mono_string_length (string) + 1) * 2);
11090 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11092 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11093 res [mono_string_length (string)] = 0;
11099 mono_struct_delete_old (MonoClass *klass, char *ptr)
11101 MonoMarshalType *info;
11104 info = mono_marshal_load_type_info (klass);
11106 for (i = 0; i < info->num_fields; i++) {
11107 MonoMarshalNative ntype;
11108 MonoMarshalConv conv;
11109 MonoType *ftype = info->fields [i].field->type;
11112 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11115 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11116 klass->unicode, &conv);
11118 cpos = ptr + info->fields [i].offset;
11121 case MONO_MARSHAL_CONV_NONE:
11122 if (MONO_TYPE_ISSTRUCT (ftype)) {
11123 mono_struct_delete_old (ftype->data.klass, cpos);
11127 case MONO_MARSHAL_CONV_STR_LPWSTR:
11128 /* We assume this field points inside a MonoString */
11130 case MONO_MARSHAL_CONV_STR_LPTSTR:
11131 #ifdef PLATFORM_WIN32
11132 /* We assume this field points inside a MonoString
11136 case MONO_MARSHAL_CONV_STR_LPSTR:
11137 case MONO_MARSHAL_CONV_STR_BSTR:
11138 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11139 case MONO_MARSHAL_CONV_STR_TBSTR:
11140 mono_marshal_free (*(gpointer *)cpos);
11150 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11154 MONO_ARCH_SAVE_REGS;
11156 MONO_CHECK_ARG_NULL (src);
11157 MONO_CHECK_ARG_NULL (type);
11159 klass = mono_class_from_mono_type (type->type);
11161 mono_struct_delete_old (klass, (char *)src);
11165 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11169 MONO_ARCH_SAVE_REGS;
11171 if ((gulong)size == 0)
11172 /* This returns a valid pointer for size 0 on MS.NET */
11175 #ifdef PLATFORM_WIN32
11176 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11178 res = g_try_malloc ((gulong)size);
11181 mono_gc_out_of_memory ((gulong)size);
11187 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11192 mono_gc_out_of_memory ((gulong)size);
11196 #ifdef PLATFORM_WIN32
11197 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11199 res = g_try_realloc (ptr, (gulong)size);
11202 mono_gc_out_of_memory ((gulong)size);
11208 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11210 MONO_ARCH_SAVE_REGS;
11212 #ifdef PLATFORM_WIN32
11220 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11222 MONO_ARCH_SAVE_REGS;
11224 #ifdef PLATFORM_WIN32
11225 return CoTaskMemAlloc (size);
11227 return g_try_malloc ((gulong)size);
11232 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11234 MONO_ARCH_SAVE_REGS;
11236 #ifdef PLATFORM_WIN32
11237 CoTaskMemFree (ptr);
11244 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11246 MONO_ARCH_SAVE_REGS;
11248 #ifdef PLATFORM_WIN32
11249 return CoTaskMemRealloc (ptr, size);
11251 return g_try_realloc (ptr, (gulong)size);
11256 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11258 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11262 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11264 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
11267 /* Only used for COM RCWs */
11269 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
11272 MonoDomain *domain;
11275 MONO_ARCH_SAVE_REGS;
11277 domain = mono_object_domain (type);
11278 klass = mono_class_from_mono_type (type->type);
11280 /* call mono_object_new_alloc_specific instead of mono_object_new
11281 * because we want to actually create object. mono_object_new checks
11282 * to see if type is import and creates transparent proxy. this method
11283 * is called by the corresponding real proxy to create the real RCW.
11284 * Constructor does not need to be called. Will be called later.
11286 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
11291 cominterop_rcw_interface_finalizer (gpointer key, gpointer value, gpointer user_data)
11293 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
11298 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
11301 if (obj->itf_hash) {
11302 guint32 gchandle = 0;
11303 mono_cominterop_lock ();
11304 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
11306 mono_gchandle_free (gchandle);
11307 g_hash_table_remove (rcw_hash, obj->iunknown);
11310 g_hash_table_foreach_remove (obj->itf_hash, cominterop_rcw_interface_finalizer, NULL);
11311 g_hash_table_destroy (obj->itf_hash);
11312 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
11313 obj->itf_hash = obj->iunknown = NULL;
11314 mono_cominterop_unlock ();
11318 #ifndef DISABLE_COM
11321 cominterop_rcw_finalizer (gpointer key, gpointer value, gpointer user_data)
11323 guint32 gchandle = 0;
11325 gchandle = GPOINTER_TO_UINT (value);
11327 MonoComInteropProxy* proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11330 if (proxy->com_object->itf_hash) {
11331 g_hash_table_foreach_remove (proxy->com_object->itf_hash, cominterop_rcw_interface_finalizer, NULL);
11332 g_hash_table_destroy (proxy->com_object->itf_hash);
11334 if (proxy->com_object->iunknown)
11335 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (proxy->com_object->iunknown);
11336 proxy->com_object->itf_hash = proxy->com_object->iunknown = NULL;
11339 mono_gchandle_free (gchandle);
11346 cominterop_release_all_rcws ()
11351 mono_cominterop_lock ();
11353 g_hash_table_foreach_remove (rcw_hash, cominterop_rcw_finalizer, NULL);
11354 g_hash_table_destroy (rcw_hash);
11357 mono_cominterop_unlock ();
11363 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
11365 #ifndef DISABLE_COM
11366 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
11368 g_assert_not_reached ();
11373 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
11375 #ifndef DISABLE_COM
11376 guint32 gchandle = 0;
11378 mono_cominterop_lock ();
11379 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11380 mono_cominterop_unlock ();
11383 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
11385 mono_cominterop_lock ();
11386 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
11387 mono_cominterop_unlock ();
11389 g_assert_not_reached ();
11393 MonoComInteropProxy*
11394 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
11396 #ifndef DISABLE_COM
11397 MonoComInteropProxy* proxy = NULL;
11398 guint32 gchandle = 0;
11400 mono_cominterop_lock ();
11402 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
11403 mono_cominterop_unlock ();
11405 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11406 /* proxy is null means we need to free up old RCW */
11408 mono_gchandle_free (gchandle);
11409 g_hash_table_remove (rcw_hash, pUnk);
11414 g_assert_not_reached ();
11419 * mono_marshal_is_loading_type_info:
11421 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11425 mono_marshal_is_loading_type_info (MonoClass *klass)
11427 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
11429 return g_slist_find (loads_list, klass) != NULL;
11433 * mono_marshal_load_type_info:
11435 * Initialize klass->marshal_info using information from metadata. This function can
11436 * recursively call itself, and the caller is responsible to avoid that by calling
11437 * mono_marshal_is_loading_type_info () beforehand.
11439 * LOCKING: Acquires the loader lock.
11442 mono_marshal_load_type_info (MonoClass* klass)
11445 guint32 native_size = 0, min_align = 1;
11446 MonoMarshalType *info;
11447 MonoClassField* field;
11450 GSList *loads_list;
11452 g_assert (klass != NULL);
11454 if (klass->marshal_info)
11455 return klass->marshal_info;
11457 if (!klass->inited)
11458 mono_class_init (klass);
11460 mono_loader_lock ();
11462 if (klass->marshal_info) {
11463 mono_loader_unlock ();
11464 return klass->marshal_info;
11468 * This function can recursively call itself, so we keep the list of classes which are
11469 * under initialization in a TLS list.
11471 g_assert (!mono_marshal_is_loading_type_info (klass));
11472 loads_list = TlsGetValue (load_type_info_tls_id);
11473 loads_list = g_slist_prepend (loads_list, klass);
11474 TlsSetValue (load_type_info_tls_id, loads_list);
11477 while ((field = mono_class_get_fields (klass, &iter))) {
11478 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11480 if (mono_field_is_deleted (field))
11485 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11487 /* The mempool is protected by the loader lock */
11488 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11489 info->num_fields = count;
11491 /* Try to find a size for this type in metadata */
11492 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11494 if (klass->parent) {
11495 int parent_size = mono_class_native_size (klass->parent, NULL);
11497 /* Add parent size to real size */
11498 native_size += parent_size;
11499 info->native_size = parent_size;
11504 while ((field = mono_class_get_fields (klass, &iter))) {
11508 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11511 if (mono_field_is_deleted (field))
11513 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11514 mono_metadata_field_info_with_mempool (klass->image->mempool, klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11515 NULL, NULL, &info->fields [j].mspec);
11517 info->fields [j].field = field;
11519 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11520 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11521 /* This field is a hack inserted by MCS to empty structures */
11526 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11527 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11528 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11529 &align, TRUE, klass->unicode);
11530 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11531 min_align = MAX (align, min_align);
11532 info->fields [j].offset = info->native_size;
11533 info->fields [j].offset += align - 1;
11534 info->fields [j].offset &= ~(align - 1);
11535 info->native_size = info->fields [j].offset + size;
11537 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11538 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11539 &align, TRUE, klass->unicode);
11540 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11541 min_align = MAX (align, min_align);
11542 info->fields [j].offset = field->offset - sizeof (MonoObject);
11543 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11549 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11550 info->native_size = MAX (native_size, info->native_size);
11553 if (info->native_size & (min_align - 1)) {
11554 info->native_size += min_align - 1;
11555 info->native_size &= ~(min_align - 1);
11558 /* Update the class's blittable info, if the layouts don't match */
11559 if (info->native_size != mono_class_value_size (klass, NULL))
11560 klass->blittable = FALSE;
11562 /* If this is an array type, ensure that we have element info */
11563 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11564 mono_marshal_load_type_info (klass->element_class);
11567 loads_list = TlsGetValue (load_type_info_tls_id);
11568 loads_list = g_slist_remove (loads_list, klass);
11569 TlsSetValue (load_type_info_tls_id, loads_list);
11571 /*We do double-checking locking on marshal_info */
11572 mono_memory_barrier ();
11574 klass->marshal_info = info;
11576 mono_loader_unlock ();
11578 return klass->marshal_info;
11582 * mono_class_native_size:
11585 * Returns: the native size of an object instance (when marshaled
11586 * to unmanaged code)
11589 mono_class_native_size (MonoClass *klass, guint32 *align)
11591 if (!klass->marshal_info) {
11592 if (mono_marshal_is_loading_type_info (klass)) {
11597 mono_marshal_load_type_info (klass);
11602 *align = klass->min_align;
11604 return klass->marshal_info->native_size;
11607 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11608 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11609 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11610 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11613 * mono_type_native_stack_size:
11614 * @t: the type to return the size it uses on the stack
11616 * Returns: the number of bytes required to hold an instance of this
11617 * type on the native stack
11620 mono_type_native_stack_size (MonoType *t, guint32 *align)
11624 g_assert (t != NULL);
11630 *align = sizeof (gpointer);
11631 return sizeof (gpointer);
11635 case MONO_TYPE_BOOLEAN:
11636 case MONO_TYPE_CHAR:
11647 case MONO_TYPE_STRING:
11648 case MONO_TYPE_OBJECT:
11649 case MONO_TYPE_CLASS:
11650 case MONO_TYPE_SZARRAY:
11651 case MONO_TYPE_PTR:
11652 case MONO_TYPE_FNPTR:
11653 case MONO_TYPE_ARRAY:
11654 *align = sizeof (gpointer);
11655 return sizeof (gpointer);
11660 *align = ALIGNMENT (gdouble);
11664 *align = ALIGNMENT (glong);
11666 case MONO_TYPE_GENERICINST:
11667 if (!mono_type_generic_inst_is_valuetype (t)) {
11668 *align = sizeof (gpointer);
11669 return sizeof (gpointer);
11672 case MONO_TYPE_TYPEDBYREF:
11673 case MONO_TYPE_VALUETYPE: {
11675 MonoClass *klass = mono_class_from_mono_type (t);
11677 if (klass->enumtype)
11678 return mono_type_native_stack_size (klass->enum_basetype, align);
11680 size = mono_class_native_size (klass, align);
11681 *align = *align + 3;
11691 g_error ("type 0x%02x unknown", t->type);
11697 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11698 gboolean as_field, gboolean unicode)
11700 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11703 switch (native_type) {
11704 case MONO_NATIVE_BOOLEAN:
11707 case MONO_NATIVE_I1:
11708 case MONO_NATIVE_U1:
11711 case MONO_NATIVE_I2:
11712 case MONO_NATIVE_U2:
11713 case MONO_NATIVE_VARIANTBOOL:
11716 case MONO_NATIVE_I4:
11717 case MONO_NATIVE_U4:
11718 case MONO_NATIVE_ERROR:
11721 case MONO_NATIVE_I8:
11722 case MONO_NATIVE_U8:
11723 *align = ALIGNMENT(guint64);
11725 case MONO_NATIVE_R4:
11728 case MONO_NATIVE_R8:
11729 *align = ALIGNMENT(double);
11731 case MONO_NATIVE_INT:
11732 case MONO_NATIVE_UINT:
11733 case MONO_NATIVE_LPSTR:
11734 case MONO_NATIVE_LPWSTR:
11735 case MONO_NATIVE_LPTSTR:
11736 case MONO_NATIVE_BSTR:
11737 case MONO_NATIVE_ANSIBSTR:
11738 case MONO_NATIVE_TBSTR:
11739 case MONO_NATIVE_LPARRAY:
11740 case MONO_NATIVE_SAFEARRAY:
11741 case MONO_NATIVE_IUNKNOWN:
11742 case MONO_NATIVE_IDISPATCH:
11743 case MONO_NATIVE_INTERFACE:
11744 case MONO_NATIVE_ASANY:
11745 case MONO_NATIVE_FUNC:
11746 case MONO_NATIVE_LPSTRUCT:
11747 *align = ALIGNMENT(gpointer);
11748 return sizeof (gpointer);
11749 case MONO_NATIVE_STRUCT:
11750 klass = mono_class_from_mono_type (type);
11751 if (klass == mono_defaults.object_class &&
11752 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11756 return mono_class_native_size (klass, align);
11757 case MONO_NATIVE_BYVALTSTR: {
11758 int esize = unicode ? 2: 1;
11761 return mspec->data.array_data.num_elem * esize;
11763 case MONO_NATIVE_BYVALARRAY: {
11764 // FIXME: Have to consider ArraySubType
11766 klass = mono_class_from_mono_type (type);
11767 if (klass->element_class == mono_defaults.char_class) {
11768 esize = unicode ? 2 : 1;
11771 esize = mono_class_native_size (klass->element_class, align);
11774 return mspec->data.array_data.num_elem * esize;
11776 case MONO_NATIVE_CUSTOM:
11777 *align = sizeof (gpointer);
11778 return sizeof (gpointer);
11780 case MONO_NATIVE_CURRENCY:
11781 case MONO_NATIVE_VBBYREFSTR:
11783 g_error ("native type %02x not implemented", native_type);
11786 g_assert_not_reached ();
11791 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11799 t = &o->vtable->klass->byval_arg;
11803 case MONO_TYPE_PTR:
11806 case MONO_TYPE_BOOLEAN:
11809 case MONO_TYPE_CHAR:
11814 return mono_object_unbox (o);
11816 case MONO_TYPE_STRING:
11817 switch (string_encoding) {
11818 case MONO_NATIVE_LPWSTR:
11819 return mono_string_to_utf16 ((MonoString*)o);
11821 case MONO_NATIVE_LPSTR:
11822 return mono_string_to_lpstr ((MonoString*)o);
11825 g_warning ("marshaling conversion %d not implemented", string_encoding);
11826 g_assert_not_reached ();
11829 case MONO_TYPE_CLASS:
11830 case MONO_TYPE_VALUETYPE: {
11831 MonoMethod *method;
11834 MonoBoolean delete_old = FALSE;
11836 klass = t->data.klass;
11838 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11841 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11842 klass->blittable || klass->enumtype))
11843 return mono_object_unbox (o);
11845 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11847 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11848 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11852 pa [2] = &delete_old;
11854 mono_runtime_invoke (method, NULL, pa, NULL);
11861 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11867 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11875 t = &o->vtable->klass->byval_arg;
11877 case MONO_TYPE_STRING:
11878 switch (string_encoding) {
11879 case MONO_NATIVE_LPWSTR:
11880 case MONO_NATIVE_LPSTR:
11881 mono_marshal_free (ptr);
11884 g_warning ("marshaling conversion %d not implemented", string_encoding);
11885 g_assert_not_reached ();
11888 case MONO_TYPE_CLASS:
11889 case MONO_TYPE_VALUETYPE: {
11890 klass = t->data.klass;
11892 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11893 klass->blittable || klass->enumtype))
11896 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11897 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11903 mono_runtime_invoke (method, NULL, pa, NULL);
11906 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11907 mono_struct_delete_old (klass, ptr);
11910 mono_marshal_free (ptr);
11919 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11921 MonoMethodSignature *sig, *csig;
11922 MonoMethodBuilder *mb;
11926 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11927 mb->method->slot = -1;
11929 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11930 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11932 sig = mono_method_signature (method);
11933 csig = signature_dup (method->klass->image, sig);
11934 csig->generic_param_count = 0;
11936 mono_mb_emit_ldarg (mb, 0);
11937 for (i = 0; i < csig->param_count; i++)
11938 mono_mb_emit_ldarg (mb, i + 1);
11939 mono_mb_emit_managed_call (mb, method, NULL);
11940 mono_mb_emit_byte (mb, CEE_RET);
11942 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11944 /* We can corlib internal methods */
11945 res->skip_visibility = TRUE;
11953 * The mono_win32_compat_* functions are implementations of inline
11954 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11955 * although not exported by kernel32.
11957 * We map the appropiate kernel32 entries to these functions using
11958 * dllmaps declared in the global etc/mono/config.
11962 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11964 if (!dest || !source)
11967 memcpy (dest, source, length);
11971 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11973 memset (dest, fill, length);
11977 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11979 if (!dest || !source)
11982 memmove (dest, source, length);
11986 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11988 memset (dest, 0, length);
11991 /* Put COM Interop related stuff here */
11993 #ifndef DISABLE_COM
11996 * cominterop_get_ccw_object:
11997 * @ccw_entry: a pointer to the CCWEntry
11998 * @verify: verify ccw_entry is in fact a ccw
12000 * Returns: the corresponding object for the CCW
12003 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
12005 MonoCCW *ccw = NULL;
12007 /* no CCW's exist yet */
12008 if (!ccw_interface_hash)
12012 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
12015 ccw = ccw_entry->ccw;
12019 return mono_gchandle_get_target (ccw->gc_handle);
12025 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
12027 MonoMethodSignature *sig, *csig;
12028 sig = mono_method_signature (method);
12029 /* we copy the signature, so that we can modify it */
12030 /* FIXME: which to use? */
12031 csig = signature_dup (method->klass->image, sig);
12032 /* csig = mono_metadata_signature_dup (sig); */
12034 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
12035 #ifdef PLATFORM_WIN32
12036 csig->call_convention = MONO_CALL_STDCALL;
12038 csig->call_convention = MONO_CALL_C;
12043 m->image = method->klass->image;
12051 * cominterop_get_ccw:
12052 * @object: a pointer to the object
12053 * @itf: interface type needed
12055 * Returns: a value indicating if the object is a
12056 * Runtime Callable Wrapper (RCW) for a COM object
12059 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
12062 MonoCCW *ccw = NULL;
12063 MonoCCWInterface* ccw_entry = NULL;
12064 gpointer *vtable = NULL;
12065 static gpointer iunknown[3] = {NULL, NULL, NULL};
12066 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
12067 MonoClass* iface = NULL;
12068 MonoClass* klass = NULL;
12069 EmitMarshalContext m;
12070 int start_slot = 3;
12071 int method_count = 0;
12072 GList *ccw_list, *ccw_list_item;
12073 MonoCustomAttrInfo *cinfo = NULL;
12078 klass = mono_object_get_class (object);
12081 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12082 if (!ccw_interface_hash)
12083 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12085 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12087 ccw_list_item = ccw_list;
12088 while (ccw_list_item) {
12089 MonoCCW* ccw_iter = ccw_list_item->data;
12090 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
12094 ccw_list_item = g_list_next(ccw_list_item);
12097 if (!iunknown [0]) {
12098 iunknown [0] = cominterop_ccw_queryinterface;
12099 iunknown [1] = cominterop_ccw_addref;
12100 iunknown [2] = cominterop_ccw_release;
12103 if (!idispatch [0]) {
12104 idispatch [0] = cominterop_ccw_get_type_info_count;
12105 idispatch [1] = cominterop_ccw_get_type_info;
12106 idispatch [2] = cominterop_ccw_get_ids_of_names;
12107 idispatch [3] = cominterop_ccw_invoke;
12111 ccw = g_new0 (MonoCCW, 1);
12112 #ifdef PLATFORM_WIN32
12113 ccw->free_marshaler = 0;
12115 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12116 ccw->ref_count = 0;
12117 /* just alloc a weak handle until we are addref'd*/
12118 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
12121 ccw_list = g_list_alloc ();
12122 ccw_list->data = ccw;
12125 ccw_list = g_list_append (ccw_list, ccw);
12126 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
12127 /* register for finalization to clean up ccw */
12128 mono_object_register_finalizer (object);
12131 cinfo = mono_custom_attrs_from_class (itf);
12133 static MonoClass* coclass_attribute = NULL;
12134 if (!coclass_attribute)
12135 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
12136 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
12137 g_assert(itf->interface_count && itf->interfaces[0]);
12138 itf = itf->interfaces[0];
12140 if (!cinfo->cached)
12141 mono_custom_attrs_free (cinfo);
12145 if (iface == mono_defaults.iunknown_class) {
12148 else if (iface == mono_defaults.idispatch_class) {
12152 method_count += iface->method.count;
12153 start_slot = cominterop_get_com_slot_begin (iface);
12157 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
12160 int vtable_index = method_count-1+start_slot;
12161 mono_loader_lock ();
12162 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
12163 mono_loader_unlock ();
12164 memcpy (vtable, iunknown, sizeof (iunknown));
12165 if (start_slot == 7)
12166 memcpy (vtable+3, idispatch, sizeof (idispatch));
12169 for (i = iface->method.count-1; i >= 0;i--) {
12170 int param_index = 0;
12171 MonoMethodBuilder *mb;
12172 MonoMarshalSpec ** mspecs;
12173 MonoMethod *wrapper_method, *adjust_method;
12174 MonoMethod *method = iface->methods [i];
12175 MonoMethodSignature* sig_adjusted;
12176 MonoMethodSignature* sig = mono_method_signature (method);
12177 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12180 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12181 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
12182 sig_adjusted = mono_method_signature (adjust_method);
12184 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
12185 mono_method_get_marshal_info (method, mspecs);
12188 /* move managed args up one */
12189 for (param_index = sig->param_count; param_index >= 1; param_index--) {
12190 int mspec_index = param_index+1;
12191 mspecs [mspec_index] = mspecs [param_index];
12193 if (mspecs[mspec_index] == NULL) {
12194 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
12195 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12196 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
12198 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
12199 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12200 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
12202 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
12203 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12204 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
12209 /* first arg is IntPtr for interface */
12212 /* move return spec to last param */
12213 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
12214 if (mspecs [0] == NULL) {
12215 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
12216 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12217 mspecs[0]->native = MONO_NATIVE_STRUCT;
12219 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
12220 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12221 mspecs[0]->native = MONO_NATIVE_BSTR;
12223 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
12224 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12225 mspecs[0]->native = MONO_NATIVE_INTERFACE;
12229 mspecs [sig_adjusted->param_count] = mspecs [0];
12233 cominterop_setup_marshal_context (&m, adjust_method);
12235 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
12236 mono_loader_lock ();
12237 mono_marshal_lock ();
12238 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
12239 mono_marshal_unlock ();
12240 mono_loader_unlock ();
12242 /* skip visiblity since we call internal methods */
12243 wrapper_method->skip_visibility = TRUE;
12245 vtable [vtable_index--] = mono_compile_method (wrapper_method);
12248 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
12249 if (mspecs [param_index])
12250 mono_metadata_free_marshal_spec (mspecs [param_index]);
12254 ccw_entry = g_new0 (MonoCCWInterface, 1);
12255 ccw_entry->ccw = ccw;
12256 ccw_entry->vtable = vtable;
12257 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
12258 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
12265 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
12273 * mono_marshal_free_ccw:
12274 * @object: the mono object
12276 * Returns: whether the object had a CCW
12279 mono_marshal_free_ccw (MonoObject* object)
12281 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
12282 /* no ccw's were created */
12283 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
12286 /* need to cache orig list address to remove from hash_table if empty */
12287 mono_cominterop_lock ();
12288 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12289 mono_cominterop_unlock ();
12294 ccw_list_item = ccw_list;
12295 while (ccw_list_item) {
12296 MonoCCW* ccw_iter = ccw_list_item->data;
12297 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
12299 /* Looks like the GC NULLs the weakref handle target before running the
12300 * finalizer. So if we get a NULL target, destroy the CCW as well. */
12301 if (!handle_target || handle_target == object) {
12302 /* remove all interfaces */
12303 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
12304 g_hash_table_destroy (ccw_iter->vtable_hash);
12306 /* get next before we delete */
12307 ccw_list_item = g_list_next(ccw_list_item);
12309 /* remove ccw from list */
12310 ccw_list = g_list_remove (ccw_list, ccw_iter);
12314 ccw_list_item = g_list_next(ccw_list_item);
12317 /* if list is empty remove original address from hash */
12318 if (g_list_length (ccw_list) == 0)
12319 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12326 * cominterop_get_managed_wrapper_adjusted:
12327 * @method: managed COM Interop method
12329 * Returns: the generated method to call with signature matching
12330 * the unmanaged COM Method signature
12332 static MonoMethod *
12333 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
12335 static MonoMethod *get_hr_for_exception = NULL;
12336 MonoMethod *res = NULL;
12337 MonoMethodBuilder *mb;
12338 MonoMarshalSpec **mspecs;
12339 MonoMethodSignature *sig, *sig_native;
12340 MonoExceptionClause *main_clause = NULL;
12341 MonoMethodHeader *header;
12345 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12347 if (!get_hr_for_exception)
12348 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
12350 sig = mono_method_signature (method);
12352 /* create unmanaged wrapper */
12353 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
12355 sig_native = cominterop_method_signature (method);
12357 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
12359 mono_method_get_marshal_info (method, mspecs);
12361 /* move managed args up one */
12362 for (i = sig->param_count; i >= 1; i--)
12363 mspecs [i+1] = mspecs [i];
12365 /* first arg is IntPtr for interface */
12368 /* move return spec to last param */
12369 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12370 mspecs [sig_native->param_count] = mspecs [0];
12374 if (!preserve_sig) {
12375 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
12378 main_clause = g_new0 (MonoExceptionClause, 1);
12379 main_clause->try_offset = mono_mb_get_label (mb);
12382 /* load last param to store result if not preserve_sig and not void */
12383 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12384 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
12386 /* the CCW -> object conversion */
12387 mono_mb_emit_ldarg (mb, 0);
12388 mono_mb_emit_icon (mb, FALSE);
12389 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
12391 for (i = 0; i < sig->param_count; i++)
12392 mono_mb_emit_ldarg (mb, i+1);
12394 mono_mb_emit_managed_call (mb, method, NULL);
12396 if (!preserve_sig) {
12397 /* store result if not preserve_sig and we have one */
12398 if (!MONO_TYPE_IS_VOID (sig->ret))
12399 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
12401 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12403 /* Main exception catch */
12404 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12405 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
12406 main_clause->data.catch_class = mono_defaults.object_class;
12409 main_clause->handler_offset = mono_mb_get_label (mb);
12410 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
12411 mono_mb_emit_stloc (mb, hr);
12412 mono_mb_emit_branch (mb, CEE_LEAVE);
12413 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
12416 mono_mb_patch_branch (mb, pos_leave);
12418 mono_mb_emit_ldloc (mb, hr);
12421 mono_mb_emit_byte (mb, CEE_RET);
12423 mono_loader_lock ();
12424 mono_marshal_lock ();
12425 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
12426 mono_marshal_unlock ();
12427 mono_loader_unlock ();
12431 for (i = sig_native->param_count; i >= 0; i--)
12433 mono_metadata_free_marshal_spec (mspecs [i]);
12436 if (!preserve_sig) {
12437 header = ((MonoMethodNormal *)res)->header;
12438 header->num_clauses = 1;
12439 header->clauses = main_clause;
12446 * cominterop_mono_string_to_guid:
12448 * Converts the standard string representation of a GUID
12449 * to a 16 byte Microsoft GUID.
12452 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
12453 gunichar2 * chars = mono_string_chars (string);
12455 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
12457 for (i = 0; i < sizeof(indexes); i++)
12458 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
12462 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
12464 guint8 klass_guid [16];
12465 if (cominterop_class_guid (klass, klass_guid))
12466 return !memcmp (guid, klass_guid, sizeof (klass_guid));
12471 cominterop_ccw_addref (MonoCCWInterface* ccwe)
12473 gint32 ref_count = 0;
12474 MonoCCW* ccw = ccwe->ccw;
12476 g_assert (ccw->gc_handle);
12477 g_assert (ccw->ref_count >= 0);
12478 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
12479 if (ref_count == 1) {
12480 guint32 oldhandle = ccw->gc_handle;
12481 g_assert (oldhandle);
12482 /* since we now have a ref count, alloc a strong handle*/
12483 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12484 mono_gchandle_free (oldhandle);
12490 cominterop_ccw_release (MonoCCWInterface* ccwe)
12492 gint32 ref_count = 0;
12493 MonoCCW* ccw = ccwe->ccw;
12495 g_assert (ccw->ref_count > 0);
12496 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12497 if (ref_count == 0) {
12498 /* allow gc of object */
12499 guint32 oldhandle = ccw->gc_handle;
12500 g_assert (oldhandle);
12501 #ifdef PLATFORM_WIN32
12502 if (ccw->free_marshaler)
12503 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (ccw->free_marshaler);
12505 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12506 mono_gchandle_free (oldhandle);
12511 #ifdef PLATFORM_WIN32
12512 static const IID MONO_IID_IMarshal = {0x3, 0x0, 0x0, {0xC0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x46}};
12515 #ifdef PLATFORM_WIN32
12516 /* All ccw objects are free threaded */
12518 cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv)
12520 #ifdef PLATFORM_WIN32
12521 if (!ccw->free_marshaler) {
12524 tunk = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12525 /* remember to addref on QI */
12526 cominterop_ccw_addref (tunk);
12527 ret = CoCreateFreeThreadedMarshaler (tunk, (LPUNKNOWN*)&ccw->free_marshaler);
12528 cominterop_ccw_release(tunk);
12531 if (!ccw->free_marshaler)
12532 return MONO_E_NOINTERFACE;
12534 return ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (ccw->free_marshaler, (IID*)&MONO_IID_IMarshal, ppv);
12536 return MONO_E_NOINTERFACE;
12542 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12545 MonoClass *itf = NULL;
12547 MonoCCW* ccw = ccwe->ccw;
12548 MonoClass* klass = NULL;
12549 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12552 klass = mono_object_class (object);
12557 if (!mono_domain_get ())
12558 mono_thread_attach (mono_get_root_domain ());
12560 /* handle IUnknown special */
12561 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12562 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12563 /* remember to addref on QI */
12564 cominterop_ccw_addref (*ppv);
12568 /* handle IDispatch special */
12569 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12570 if (!cominterop_can_support_dispatch (klass))
12571 return MONO_E_NOINTERFACE;
12573 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12574 /* remember to addref on QI */
12575 cominterop_ccw_addref (*ppv);
12579 #ifdef PLATFORM_WIN32
12580 /* handle IMarshal special */
12581 if (0 == memcmp (riid, &MONO_IID_IMarshal, sizeof (IID))) {
12582 return cominterop_ccw_getfreethreadedmarshaler (ccw, object, ppv);
12586 ifaces = mono_class_get_implemented_interfaces (klass);
12588 for (i = 0; i < ifaces->len; ++i) {
12589 MonoClass *ic = NULL;
12590 ic = g_ptr_array_index (ifaces, i);
12591 if (cominterop_class_guid_equal (riid, ic)) {
12596 g_ptr_array_free (ifaces, TRUE);
12599 *ppv = cominterop_get_ccw (object, itf);
12600 /* remember to addref on QI */
12601 cominterop_ccw_addref (*ppv);
12605 return MONO_E_NOINTERFACE;
12609 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12611 return MONO_E_NOTIMPL;
12615 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12617 return MONO_E_NOTIMPL;
12621 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12622 gunichar2** rgszNames, guint32 cNames,
12623 guint32 lcid, gint32 *rgDispId)
12625 return MONO_E_NOTIMPL;
12629 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12630 gpointer riid, guint32 lcid,
12631 guint16 wFlags, gpointer pDispParams,
12632 gpointer pVarResult, gpointer pExcepInfo,
12635 return MONO_E_NOTIMPL;
12638 #else /* DISABLE_COM */
12641 mono_marshal_free_ccw (MonoObject* object)
12646 #endif /* DISABLE_COM */
12649 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12654 for (i = 0; i < len; ++i)
12658 g_assert (i < len);
12661 while (byte && !(byte & 1))
12663 g_assert (byte == 1);
12666 *bitmask = buf [i];
12670 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12672 MonoMethodBuilder *mb;
12673 MonoMethodSignature *sig, *csig;
12674 MonoExceptionClause *clause;
12675 MonoMethodHeader *header;
12680 int i, param_count, sig_size, pos_leave;
12684 klass = method->klass;
12685 image = method->klass->image;
12686 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12688 if ((res = mono_marshal_find_in_cache (cache, method)))
12691 sig = mono_method_signature (method);
12692 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12694 /* add "this" and exception param */
12695 param_count = sig->param_count + sig->hasthis + 1;
12697 /* dup & extend signature */
12698 csig = mono_metadata_signature_alloc (image, param_count);
12699 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12700 memcpy (csig, sig, sig_size);
12701 csig->param_count = param_count;
12704 csig->call_convention = MONO_CALL_DEFAULT;
12706 if (sig->hasthis) {
12708 csig->params [0] = &klass->byval_arg;
12709 /* move params up by one */
12710 for (i = 0; i < sig->param_count; i++)
12711 csig->params [i + 1] = sig->params [i];
12714 /* setup exception param as byref+[out] */
12715 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12716 &mono_defaults.exception_class->byval_arg);
12717 csig->params [param_count - 1]->byref = 1;
12718 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12720 /* convert struct return to object */
12721 if (MONO_TYPE_ISSTRUCT (sig->ret))
12722 csig->ret = &mono_defaults.object_class->byval_arg;
12724 /* local 0 (temp for exception object) */
12725 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12727 /* local 1 (temp for result) */
12728 if (!MONO_TYPE_IS_VOID (sig->ret))
12729 mono_mb_add_local (mb, sig->ret);
12731 /* clear exception arg */
12732 mono_mb_emit_ldarg (mb, param_count - 1);
12733 mono_mb_emit_byte (mb, CEE_LDNULL);
12734 mono_mb_emit_byte (mb, CEE_STIND_REF);
12737 mono_loader_lock ();
12738 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12739 mono_loader_unlock ();
12740 clause->try_offset = mono_mb_get_label (mb);
12742 /* push method's args */
12743 for (i = 0; i < param_count - 1; i++) {
12747 mono_mb_emit_ldarg (mb, i);
12749 /* get the byval type of the param */
12750 klass = mono_class_from_mono_type (csig->params [i]);
12751 type = &klass->byval_arg;
12753 /* unbox struct args */
12754 if (MONO_TYPE_ISSTRUCT (type)) {
12755 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12757 /* byref args & and the "this" arg must remain a ptr.
12758 Otherwise make a copy of the value type */
12759 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12760 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12762 csig->params [i] = &mono_defaults.object_class->byval_arg;
12767 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12768 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12770 mono_mb_emit_op (mb, CEE_CALL, method);
12772 /* save result at local 1 */
12773 if (!MONO_TYPE_IS_VOID (sig->ret))
12774 mono_mb_emit_stloc (mb, 1);
12776 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12779 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12780 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12781 clause->data.catch_class = mono_defaults.object_class;
12783 clause->handler_offset = mono_mb_get_label (mb);
12785 /* store exception at local 0 */
12786 mono_mb_emit_stloc (mb, 0);
12787 mono_mb_emit_ldarg (mb, param_count - 1);
12788 mono_mb_emit_ldloc (mb, 0);
12789 mono_mb_emit_byte (mb, CEE_STIND_REF);
12790 mono_mb_emit_branch (mb, CEE_LEAVE);
12792 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12794 mono_mb_patch_branch (mb, pos_leave);
12797 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12798 mono_mb_emit_ldloc (mb, 1);
12800 /* box the return value */
12801 if (MONO_TYPE_ISSTRUCT (sig->ret))
12802 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12805 mono_mb_emit_byte (mb, CEE_RET);
12807 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12810 header = ((MonoMethodNormal *)res)->header;
12811 header->num_clauses = 1;
12812 header->clauses = clause;