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;
3836 gboolean copy_return;
3838 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3841 sig = mono_method_signature (method);
3842 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3845 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3846 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3847 csig->params [j++] = &byte_array_class->this_arg;
3848 csig->params [j++] = &byte_array_class->this_arg;
3849 for (i = 0; i < sig->param_count; i++) {
3850 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3851 csig->params [j++] = sig->params [i];
3854 csig->ret = sig->ret;
3856 csig->ret = &mono_defaults.void_class->byval_arg;
3858 csig->hasthis = FALSE;
3860 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3861 mb->method->save_lmf = 1;
3865 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3866 if (complex_count > 0)
3867 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3868 if (sig->ret->type != MONO_TYPE_VOID) {
3869 loc_return = mono_mb_add_local (mb, sig->ret);
3870 ret_class = mono_class_from_mono_type (sig->ret);
3875 mono_loader_lock ();
3876 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3877 mono_loader_unlock ();
3878 main_clause->try_offset = mono_mb_get_label (mb);
3880 /* Clean the call context */
3882 mono_mb_emit_byte (mb, CEE_LDNULL);
3883 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3884 mono_mb_emit_byte (mb, CEE_POP);
3886 /* Deserialize call data */
3888 mono_mb_emit_ldarg (mb, 1);
3889 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3890 mono_mb_emit_byte (mb, CEE_DUP);
3891 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3893 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3894 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3896 if (complex_count > 0)
3897 mono_mb_emit_stloc (mb, loc_array);
3899 mono_mb_emit_byte (mb, CEE_POP);
3901 mono_mb_patch_short_branch (mb, pos);
3903 /* Get the target object */
3905 mono_mb_emit_ldarg (mb, 0);
3906 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3908 /* Load the arguments */
3910 copy_locals_base = mb->locals;
3911 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3913 for (i = 0; i < sig->param_count; i++) {
3914 MonoType *pt = sig->params [i];
3915 MonoClass *pclass = mono_class_from_mono_type (pt);
3916 switch (marshal_types [i]) {
3917 case MONO_MARSHAL_SERIALIZE: {
3918 /* take the value from the serialized array */
3919 mono_mb_emit_ldloc (mb, loc_array);
3920 mono_mb_emit_icon (mb, j++);
3922 if (pclass->valuetype) {
3923 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3924 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3926 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3929 if (pclass->valuetype) {
3930 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3931 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3932 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3934 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3935 if (pclass != mono_defaults.object_class) {
3936 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3942 case MONO_MARSHAL_COPY_OUT: {
3943 /* Keep a local copy of the value since we need to copy it back after the call */
3944 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3945 mono_mb_emit_ldarg (mb, param_index++);
3946 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3947 mono_mb_emit_byte (mb, CEE_DUP);
3948 mono_mb_emit_stloc (mb, copy_local);
3951 case MONO_MARSHAL_COPY: {
3952 mono_mb_emit_ldarg (mb, param_index);
3954 mono_mb_emit_byte (mb, CEE_DUP);
3955 mono_mb_emit_byte (mb, CEE_DUP);
3956 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3957 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3958 mono_mb_emit_byte (mb, CEE_STIND_REF);
3960 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3965 case MONO_MARSHAL_NONE:
3966 mono_mb_emit_ldarg (mb, param_index++);
3971 /* Make the call to the real object */
3973 emit_thread_force_interrupt_checkpoint (mb);
3975 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3977 if (sig->ret->type != MONO_TYPE_VOID)
3978 mono_mb_emit_stloc (mb, loc_return);
3980 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3984 for (i = 0; i < sig->param_count; i++) {
3985 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3986 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3987 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3988 mono_mb_emit_ldarg (mb, param_index);
3989 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3994 /* Serialize the return values */
3996 if (complex_out_count > 0) {
3997 /* Reset parameters in the array that don't need to be serialized back */
3999 for (i = 0; i < sig->param_count; i++) {
4000 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
4001 if (!sig->params [i]->byref) {
4002 mono_mb_emit_ldloc (mb, loc_array);
4003 mono_mb_emit_icon (mb, j);
4004 mono_mb_emit_byte (mb, CEE_LDNULL);
4005 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4010 /* Add the return value to the array */
4012 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4013 mono_mb_emit_ldloc (mb, loc_array);
4014 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
4015 mono_mb_emit_ldloc (mb, loc_return);
4016 if (ret_class->valuetype) {
4017 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4019 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4024 mono_mb_emit_ldarg (mb, 1);
4025 mono_mb_emit_ldloc (mb, loc_array);
4026 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4027 mono_mb_emit_byte (mb, CEE_STIND_REF);
4028 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4029 mono_mb_emit_ldarg (mb, 1);
4030 mono_mb_emit_ldloc (mb, loc_return);
4031 if (ret_class->valuetype) {
4032 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4034 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4035 mono_mb_emit_byte (mb, CEE_STIND_REF);
4037 mono_mb_emit_ldarg (mb, 1);
4038 mono_mb_emit_byte (mb, CEE_LDNULL);
4039 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4040 mono_mb_emit_byte (mb, CEE_STIND_REF);
4043 mono_mb_emit_ldarg (mb, 2);
4044 mono_mb_emit_byte (mb, CEE_LDNULL);
4045 mono_mb_emit_byte (mb, CEE_STIND_REF);
4046 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
4048 /* Main exception catch */
4049 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4050 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
4051 main_clause->data.catch_class = mono_defaults.object_class;
4054 main_clause->handler_offset = mono_mb_get_label (mb);
4055 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
4056 mono_mb_emit_stloc (mb, loc_serialized_exc);
4057 mono_mb_emit_ldarg (mb, 2);
4058 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4059 mono_mb_emit_byte (mb, CEE_STIND_REF);
4060 mono_mb_emit_branch (mb, CEE_LEAVE);
4061 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
4064 mono_mb_patch_branch (mb, pos_leave);
4067 mono_mb_emit_ldloc (mb, loc_return);
4069 mono_mb_emit_byte (mb, CEE_RET);
4071 mono_mb_set_clauses (mb, 1, main_clause);
4073 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
4079 /* mono_marshal_get_xappdomain_invoke ()
4080 * Generates a fast remoting wrapper for cross app domain calls.
4083 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
4085 MonoMethodSignature *sig;
4086 MonoMethodBuilder *mb;
4088 int i, j, complex_count, complex_out_count, copy_locals_base;
4090 MonoClass *ret_class = NULL;
4091 MonoMethod *xdomain_method;
4092 int ret_marshal_type = MONO_MARSHAL_NONE;
4093 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
4094 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
4095 int pos, pos_dispatch, pos_noex;
4096 gboolean copy_return = FALSE;
4100 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
4103 /* we cant remote methods without this pointer */
4104 if (!mono_method_signature (method)->hasthis)
4107 if (!mono_marshal_supports_fast_xdomain (method))
4108 return mono_marshal_get_remoting_invoke (method);
4110 mono_remoting_marshal_init ();
4112 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
4115 sig = mono_signature_no_pinvoke (method);
4117 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
4118 mb->method->save_lmf = 1;
4120 /* Count the number of parameters that need to be serialized */
4122 marshal_types = alloca (sizeof (int) * sig->param_count);
4123 complex_count = complex_out_count = 0;
4124 for (i = 0; i < sig->param_count; i++) {
4125 MonoType *ptype = sig->params[i];
4126 int mt = mono_get_xdomain_marshal_type (ptype);
4128 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4129 * the copy will be made by reusing the original object instance
4131 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4132 mt = MONO_MARSHAL_COPY_OUT;
4133 else if (mt == MONO_MARSHAL_SERIALIZE) {
4135 if (ptype->byref) complex_out_count++;
4137 marshal_types [i] = mt;
4140 if (sig->ret->type != MONO_TYPE_VOID) {
4141 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4142 ret_class = mono_class_from_mono_type (sig->ret);
4143 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4148 if (complex_count > 0)
4149 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4150 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4151 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4153 loc_return = mono_mb_add_local (mb, sig->ret);
4154 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4155 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4156 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4157 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4159 /* Save thread domain data */
4161 mono_mb_emit_icall (mb, mono_context_get);
4162 mono_mb_emit_byte (mb, CEE_DUP);
4163 mono_mb_emit_stloc (mb, loc_context);
4165 /* If the thread is not running in the default context, it needs to go
4166 * through the whole remoting sink, since the context is going to change
4168 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4169 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4171 /* Another case in which the fast path can't be used: when the target domain
4172 * has a different image for the same assembly.
4175 /* Get the target domain id */
4177 mono_mb_emit_ldarg (mb, 0);
4178 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4180 mono_mb_emit_byte (mb, CEE_DUP);
4181 mono_mb_emit_stloc (mb, loc_real_proxy);
4183 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4184 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4185 mono_mb_emit_stloc (mb, loc_domainid);
4187 /* Check if the target domain has the same image for the required assembly */
4189 mono_mb_emit_ldloc (mb, loc_domainid);
4190 mono_mb_emit_ptr (mb, method->klass->image);
4191 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4192 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4194 /* Use the whole remoting sink to dispatch this message */
4196 mono_mb_patch_short_branch (mb, pos);
4198 mono_mb_emit_ldarg (mb, 0);
4199 for (i = 0; i < sig->param_count; i++)
4200 mono_mb_emit_ldarg (mb, i + 1);
4202 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4203 mono_mb_emit_byte (mb, CEE_RET);
4204 mono_mb_patch_short_branch (mb, pos_dispatch);
4206 /* Create the array that will hold the parameters to be serialized */
4208 if (complex_count > 0) {
4209 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 */
4210 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4213 for (i = 0; i < sig->param_count; i++) {
4215 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4216 pclass = mono_class_from_mono_type (sig->params[i]);
4217 mono_mb_emit_byte (mb, CEE_DUP);
4218 mono_mb_emit_icon (mb, j);
4219 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4220 if (sig->params[i]->byref) {
4221 if (pclass->valuetype)
4222 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4224 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4226 if (pclass->valuetype)
4227 mono_mb_emit_op (mb, CEE_BOX, pclass);
4228 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4231 mono_mb_emit_stloc (mb, loc_array);
4233 /* Serialize parameters */
4235 mono_mb_emit_ldloc (mb, loc_array);
4236 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4237 mono_mb_emit_stloc (mb, loc_serialized_data);
4239 mono_mb_emit_byte (mb, CEE_LDNULL);
4240 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4241 mono_mb_emit_stloc (mb, loc_serialized_data);
4246 mono_mb_emit_ldloc (mb, loc_domainid);
4247 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4248 mono_marshal_emit_switch_domain (mb);
4249 mono_mb_emit_stloc (mb, loc_old_domainid);
4251 /* Load the arguments */
4253 mono_mb_emit_ldloc (mb, loc_real_proxy);
4254 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4255 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4257 copy_locals_base = mb->locals;
4258 for (i = 0; i < sig->param_count; i++) {
4259 switch (marshal_types [i]) {
4260 case MONO_MARSHAL_SERIALIZE:
4262 case MONO_MARSHAL_COPY: {
4263 mono_mb_emit_ldarg (mb, i+1);
4264 if (sig->params [i]->byref) {
4265 /* make a local copy of the byref parameter. The real parameter
4266 * will be updated after the xdomain call
4268 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4269 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4270 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4271 mono_mb_emit_stloc (mb, copy_local);
4272 mono_mb_emit_ldloc_addr (mb, copy_local);
4276 case MONO_MARSHAL_COPY_OUT:
4277 case MONO_MARSHAL_NONE:
4278 mono_mb_emit_ldarg (mb, i+1);
4283 /* Make the call to the invoke wrapper in the target domain */
4285 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4286 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4287 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4290 mono_mb_emit_stloc (mb, loc_return);
4294 mono_mb_emit_ldloc (mb, loc_old_domainid);
4295 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4296 mono_marshal_emit_switch_domain (mb);
4297 mono_mb_emit_byte (mb, CEE_POP);
4299 /* Restore thread domain data */
4301 mono_mb_emit_ldloc (mb, loc_context);
4302 mono_mb_emit_icall (mb, mono_context_set);
4304 /* if (loc_serialized_exc != null) ... */
4306 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4307 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4309 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4310 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4311 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4312 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4313 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4314 mono_mb_emit_byte (mb, CEE_THROW);
4315 mono_mb_patch_short_branch (mb, pos_noex);
4317 /* copy back non-serialized output parameters */
4320 for (i = 0; i < sig->param_count; i++) {
4321 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4322 mono_mb_emit_ldarg (mb, i + 1);
4323 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4324 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4325 mono_mb_emit_byte (mb, CEE_STIND_REF);
4328 /* Deserialize out parameters */
4330 if (complex_out_count > 0) {
4331 mono_mb_emit_ldloc (mb, loc_serialized_data);
4332 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4333 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4334 mono_mb_emit_stloc (mb, loc_array);
4336 /* Copy back output parameters and return type */
4339 for (i = 0; i < sig->param_count; i++) {
4340 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4341 if (sig->params[i]->byref) {
4342 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4343 mono_mb_emit_ldarg (mb, i + 1);
4344 mono_mb_emit_ldloc (mb, loc_array);
4345 mono_mb_emit_icon (mb, j);
4346 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4347 if (pclass->valuetype) {
4348 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4349 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4350 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4352 if (pclass != mono_defaults.object_class)
4353 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4354 mono_mb_emit_byte (mb, CEE_STIND_REF);
4360 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4361 mono_mb_emit_ldloc (mb, loc_array);
4362 mono_mb_emit_icon (mb, complex_count);
4363 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4364 if (ret_class->valuetype) {
4365 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4366 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4369 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4370 mono_mb_emit_ldloc (mb, loc_serialized_data);
4371 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4372 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4373 if (ret_class->valuetype) {
4374 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4375 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4376 } else if (ret_class != mono_defaults.object_class) {
4377 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4380 mono_mb_emit_ldloc (mb, loc_serialized_data);
4381 mono_mb_emit_byte (mb, CEE_DUP);
4382 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4383 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4385 mono_mb_patch_short_branch (mb, pos);
4386 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4387 mono_mb_emit_byte (mb, CEE_POP);
4391 mono_mb_emit_ldloc (mb, loc_return);
4392 if (ret_marshal_type == MONO_MARSHAL_COPY)
4393 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4396 mono_mb_emit_byte (mb, CEE_RET);
4398 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4405 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4407 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
4408 return mono_marshal_get_xappdomain_invoke (method);
4409 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
4411 return cominterop_get_invoke (method);
4413 g_assert_not_reached ();
4416 return mono_marshal_get_remoting_invoke (method);
4420 G_GNUC_UNUSED static gpointer
4421 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4423 if (rp->target_domain_id != -1)
4424 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4426 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4430 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4432 MonoMethodSignature *sig;
4433 MonoMethodBuilder *mb;
4434 MonoMethod *res, *native;
4435 int i, pos, pos_rem;
4439 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4442 /* we cant remote methods without this pointer */
4443 g_assert (mono_method_signature (method)->hasthis);
4445 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4448 sig = mono_signature_no_pinvoke (method);
4450 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4452 for (i = 0; i <= sig->param_count; i++)
4453 mono_mb_emit_ldarg (mb, i);
4455 mono_mb_emit_ldarg (mb, 0);
4456 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4458 if (mono_marshal_supports_fast_xdomain (method)) {
4459 mono_mb_emit_ldarg (mb, 0);
4460 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4462 /* wrapper for cross app domain calls */
4463 native = mono_marshal_get_xappdomain_invoke (method);
4464 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4465 mono_mb_emit_byte (mb, CEE_RET);
4467 mono_mb_patch_branch (mb, pos_rem);
4469 /* wrapper for normal remote calls */
4470 native = mono_marshal_get_remoting_invoke (method);
4471 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4472 mono_mb_emit_byte (mb, CEE_RET);
4475 mono_mb_patch_branch (mb, pos);
4476 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4477 mono_mb_emit_byte (mb, CEE_RET);
4479 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4487 MonoMethodSignature *sig;
4489 } SignatureMethodPair;
4492 signature_method_pair_hash (gconstpointer data)
4494 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4496 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4500 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4502 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4506 free_signature_method_pair (SignatureMethodPair *pair)
4512 * the returned method invokes all methods in a multicast delegate.
4515 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4517 MonoMethodSignature *sig, *static_sig;
4519 MonoMethodBuilder *mb;
4520 MonoMethod *res, *newm;
4522 SignatureMethodPair key;
4523 SignatureMethodPair *new_key;
4524 int local_prev, local_target;
4527 MonoMethod *target_method = NULL;
4528 MonoClass *target_class = NULL;
4529 gboolean callvirt = FALSE;
4532 * If the delegate target is null, and the target method is not static, a virtual
4533 * call is made to that method with the first delegate argument as this. This is
4534 * a non-documented .NET feature.
4536 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4538 target_method = del->method;
4539 if (target_method->is_inflated) {
4540 MonoType *target_type;
4542 g_assert (method->signature->hasthis);
4543 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4544 mono_method_get_context (method));
4545 target_class = mono_class_from_mono_type (target_type);
4547 target_class = del->method->klass;
4551 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4552 !strcmp (method->name, "Invoke"));
4554 sig = mono_signature_no_pinvoke (method);
4557 /* We need to cache the signature+method pair */
4558 mono_marshal_lock ();
4559 if (!method->klass->image->delegate_abstract_invoke_cache)
4560 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);
4561 cache = method->klass->image->delegate_abstract_invoke_cache;
4563 key.method = target_method;
4564 res = g_hash_table_lookup (cache, &key);
4565 mono_marshal_unlock ();
4569 cache = get_cache (&method->klass->image->delegate_invoke_cache,
4570 (GHashFunc)mono_signature_hash,
4571 (GCompareFunc)mono_metadata_signature_equal);
4572 if ((res = mono_marshal_find_in_cache (cache, sig)))
4576 static_sig = signature_dup (method->klass->image, sig);
4577 static_sig->hasthis = 0;
4579 name = mono_signature_to_name (sig, "invoke");
4580 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
4583 /* allocate local 0 (object) */
4584 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4585 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4587 g_assert (sig->hasthis);
4591 * prev.Invoke( args .. );
4592 * return this.<target>( args .. );
4595 /* this wrapper can be used in unmanaged-managed transitions */
4596 emit_thread_interrupt_checkpoint (mb);
4598 /* get this->prev */
4599 mono_mb_emit_ldarg (mb, 0);
4600 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4601 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4602 mono_mb_emit_stloc (mb, local_prev);
4603 mono_mb_emit_ldloc (mb, local_prev);
4605 /* if prev != null */
4606 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4610 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4611 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4613 mono_mb_emit_ldloc (mb, local_prev);
4614 for (i = 0; i < sig->param_count; i++)
4615 mono_mb_emit_ldarg (mb, i + 1);
4616 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4617 if (sig->ret->type != MONO_TYPE_VOID)
4618 mono_mb_emit_byte (mb, CEE_POP);
4620 /* continued or prev == null */
4621 mono_mb_patch_branch (mb, pos0);
4623 /* get this->target */
4624 mono_mb_emit_ldarg (mb, 0);
4625 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4626 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4627 mono_mb_emit_stloc (mb, local_target);
4629 /* if target != null */
4630 mono_mb_emit_ldloc (mb, local_target);
4631 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4633 /* then call this->method_ptr nonstatic */
4636 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4638 mono_mb_emit_ldloc (mb, local_target);
4639 for (i = 0; i < sig->param_count; ++i)
4640 mono_mb_emit_ldarg (mb, i + 1);
4641 mono_mb_emit_ldarg (mb, 0);
4642 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4643 mono_mb_emit_byte (mb, CEE_LDIND_I );
4644 mono_mb_emit_op (mb, CEE_CALLI, sig);
4646 mono_mb_emit_byte (mb, CEE_RET);
4649 /* else [target == null] call this->method_ptr static */
4650 mono_mb_patch_branch (mb, pos0);
4653 mono_mb_emit_ldarg (mb, 1);
4654 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4655 for (i = 1; i < sig->param_count; ++i)
4656 mono_mb_emit_ldarg (mb, i + 1);
4657 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4659 for (i = 0; i < sig->param_count; ++i)
4660 mono_mb_emit_ldarg (mb, i + 1);
4661 mono_mb_emit_ldarg (mb, 0);
4662 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4663 mono_mb_emit_byte (mb, CEE_LDIND_I );
4664 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4667 mono_mb_emit_byte (mb, CEE_RET);
4670 // From mono_mb_create_and_cache
4671 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4672 newm->skip_visibility = 1;
4673 /*We perform double checked locking, so must fence before publishing*/
4674 mono_memory_barrier ();
4675 mono_marshal_lock ();
4676 res = g_hash_table_lookup (cache, &key);
4679 new_key = g_new0 (SignatureMethodPair, 1);
4681 new_key->method = target_method;
4682 g_hash_table_insert (cache, new_key, res);
4683 mono_marshal_method_set_wrapper_data (res, new_key);
4684 mono_marshal_unlock ();
4686 mono_marshal_unlock ();
4687 mono_free_method (newm);
4690 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4691 res->skip_visibility = 1;
4699 * signature_dup_add_this:
4701 * Make a copy of @sig, adding an explicit this argument.
4703 static MonoMethodSignature*
4704 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4706 MonoMethodSignature *res;
4709 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4710 memcpy (res, sig, sizeof (MonoMethodSignature));
4711 res->param_count = sig->param_count + 1;
4712 res->hasthis = FALSE;
4713 for (i = sig->param_count - 1; i >= 0; i --)
4714 res->params [i + 1] = sig->params [i];
4715 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4721 MonoMethodSignature *ctor_sig;
4722 MonoMethodSignature *sig;
4725 /* protected by the marshal lock, contains CtorSigPair pointers */
4726 static GSList *strsig_list = NULL;
4728 static MonoMethodSignature *
4729 lookup_string_ctor_signature (MonoMethodSignature *sig)
4731 MonoMethodSignature *callsig;
4735 mono_marshal_lock ();
4737 for (item = strsig_list; item; item = item->next) {
4739 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4740 * because it is lock-free.
4742 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4747 mono_marshal_unlock ();
4751 static MonoMethodSignature *
4752 add_string_ctor_signature (MonoMethod *method)
4754 MonoMethodSignature *callsig;
4757 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4758 callsig->ret = &mono_defaults.string_class->byval_arg;
4759 cs = g_new (CtorSigPair, 1);
4761 cs->ctor_sig = mono_method_signature (method);
4763 mono_marshal_lock ();
4764 strsig_list = g_slist_prepend (strsig_list, cs);
4765 mono_marshal_unlock ();
4770 get_runtime_invoke_type (MonoType *t)
4773 return &mono_defaults.int_class->byval_arg;
4777 return &mono_defaults.sbyte_class->byval_arg;
4779 return &mono_defaults.int16_class->byval_arg;
4781 return &mono_defaults.int32_class->byval_arg;
4783 return &mono_defaults.int64_class->byval_arg;
4784 case MONO_TYPE_BOOLEAN:
4785 return &mono_defaults.byte_class->byval_arg;
4786 case MONO_TYPE_CHAR:
4787 return &mono_defaults.int16_class->byval_arg;
4789 return &mono_defaults.int_class->byval_arg;
4790 case MONO_TYPE_VALUETYPE:
4791 if (t->data.klass->enumtype)
4792 return mono_type_get_underlying_type (t);
4796 if (MONO_TYPE_IS_REFERENCE (t))
4797 return &mono_defaults.object_class->byval_arg;
4803 * mono_marshal_get_runtime_invoke_sig:
4805 * Return a common signature used for sharing runtime invoke wrappers.
4807 static MonoMethodSignature*
4808 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4810 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4813 res->ret = get_runtime_invoke_type (sig->ret);
4814 for (i = 0; i < res->param_count; ++i)
4815 res->params [i] = get_runtime_invoke_type (sig->params [i]);
4821 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4823 /* Can't share wrappers which return a vtype since it needs to be boxed */
4824 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)))
4827 return mono_metadata_signature_equal (sig1, sig2);
4831 * generates IL code for the runtime invoke function
4832 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4834 * we also catch exceptions if exc != null
4837 mono_marshal_get_runtime_invoke (MonoMethod *method)
4839 MonoMethodSignature *sig, *csig, *callsig;
4840 MonoExceptionClause *clause;
4841 MonoMethodBuilder *mb;
4842 GHashTable *cache = NULL;
4843 MonoClass *target_klass;
4844 MonoMethod *res = NULL;
4845 static MonoString *string_dummy = NULL;
4846 static MonoMethodSignature *cctor_signature = NULL;
4847 static MonoMethodSignature *finalize_signature = NULL;
4850 gboolean need_direct_wrapper = FALSE;
4854 if (!cctor_signature) {
4855 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4856 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4858 if (!finalize_signature) {
4859 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4860 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4861 finalize_signature->hasthis = 1;
4865 * Use a separate cache indexed by methods to speed things up and to avoid the
4866 * boundless mempool growth caused by the signature_dup stuff below.
4868 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4869 res = mono_marshal_find_in_cache (cache, method);
4873 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4874 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4876 * Array Get/Set/Address methods. The JIT implements them using inline code
4877 * so we need to create an invoke wrapper which calls the method directly.
4879 need_direct_wrapper = TRUE;
4882 if (method->string_ctor) {
4883 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4885 callsig = add_string_ctor_signature (method);
4887 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4889 * Valuetype methods receive a managed pointer as the this argument.
4890 * Create a new signature to reflect this.
4892 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4894 if (method->dynamic)
4895 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4897 callsig = mono_method_signature (method);
4902 * We try to share runtime invoke wrappers between different methods but have to
4903 * be careful about methods whose klass has a type cctor, since putting the wrapper
4904 * into that klass would mean that calling a method of klass A might invoke the
4905 * type initializer of class B, or throw an exception if the type initializer
4906 * was called before and failed. See #349621 for an example.
4907 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4909 if (method->klass->image == mono_defaults.corlib)
4910 target_klass = mono_defaults.object_class;
4912 /* Try to share wrappers for non-corlib methods with simple signatures */
4913 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4914 callsig = cctor_signature;
4915 target_klass = mono_defaults.object_class;
4916 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4917 callsig = finalize_signature;
4918 target_klass = mono_defaults.object_class;
4920 // FIXME: This breaks too many things
4922 if (mono_class_get_cctor (method->klass))
4923 need_direct_wrapper = TRUE;
4927 * Can't put these wrappers into object, since they reference non-corlib
4928 * metadata (callsig).
4930 target_klass = method->klass;
4934 if (need_direct_wrapper) {
4935 /* Already searched at the start */
4937 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4939 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4940 (GHashFunc)mono_signature_hash,
4941 (GCompareFunc)runtime_invoke_signature_equal);
4943 /* from mono_marshal_find_in_cache */
4944 mono_marshal_lock ();
4945 res = g_hash_table_lookup (cache, callsig);
4946 mono_marshal_unlock ();
4953 // FIXME: When to free callsig ?
4956 /* to make it work with our special string constructors */
4957 if (!string_dummy) {
4958 MONO_GC_REGISTER_ROOT (string_dummy);
4959 string_dummy = mono_string_new_wrapper ("dummy");
4962 sig = mono_method_signature (method);
4964 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4966 csig->ret = &mono_defaults.object_class->byval_arg;
4967 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4968 csig->params [0] = callsig->params [0];
4970 csig->params [0] = &mono_defaults.object_class->byval_arg;
4971 csig->params [1] = &mono_defaults.int_class->byval_arg;
4972 csig->params [2] = &mono_defaults.int_class->byval_arg;
4973 csig->params [3] = &mono_defaults.int_class->byval_arg;
4975 name = mono_signature_to_name (callsig, "runtime_invoke");
4976 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4979 /* allocate local 0 (object) tmp */
4980 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4981 /* allocate local 1 (object) exc */
4982 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4984 /* cond set *exc to null */
4985 mono_mb_emit_byte (mb, CEE_LDARG_2);
4986 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4987 mono_mb_emit_byte (mb, 3);
4988 mono_mb_emit_byte (mb, CEE_LDARG_2);
4989 mono_mb_emit_byte (mb, CEE_LDNULL);
4990 mono_mb_emit_byte (mb, CEE_STIND_REF);
4992 emit_thread_force_interrupt_checkpoint (mb);
4995 if (method->string_ctor) {
4996 mono_mb_emit_ptr (mb, string_dummy);
4998 mono_mb_emit_ldarg (mb, 0);
5002 for (i = 0; i < sig->param_count; i++) {
5003 MonoType *t = sig->params [i];
5006 mono_mb_emit_ldarg (mb, 1);
5008 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
5009 mono_mb_emit_byte (mb, CEE_ADD);
5013 mono_mb_emit_byte (mb, CEE_LDIND_I);
5014 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
5015 * So to make this work we unbox it to a local variablee and push a reference to that.
5017 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
5018 int tmp_nullable_local = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
5020 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
5021 mono_mb_emit_stloc (mb, tmp_nullable_local);
5022 mono_mb_emit_ldloc_addr (mb, tmp_nullable_local);
5027 type = sig->params [i]->type;
5031 case MONO_TYPE_BOOLEAN:
5035 case MONO_TYPE_CHAR:
5044 mono_mb_emit_byte (mb, CEE_LDIND_I);
5045 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5047 case MONO_TYPE_STRING:
5048 case MONO_TYPE_CLASS:
5049 case MONO_TYPE_ARRAY:
5051 case MONO_TYPE_SZARRAY:
5052 case MONO_TYPE_OBJECT:
5053 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5055 case MONO_TYPE_GENERICINST:
5056 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
5057 mono_mb_emit_byte (mb, CEE_LDIND_I);
5062 case MONO_TYPE_VALUETYPE:
5063 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
5064 type = t->data.klass->enum_basetype->type;
5067 mono_mb_emit_byte (mb, CEE_LDIND_I);
5068 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
5069 /* Need to convert a boxed vtype to an mp to a Nullable struct */
5070 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
5071 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5073 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5077 g_assert_not_reached ();
5081 if (need_direct_wrapper) {
5082 mono_mb_emit_op (mb, CEE_CALL, method);
5084 mono_mb_emit_ldarg (mb, 3);
5085 mono_mb_emit_calli (mb, callsig);
5088 if (sig->ret->byref) {
5090 g_assert_not_reached ();
5094 switch (sig->ret->type) {
5095 case MONO_TYPE_VOID:
5096 if (!method->string_ctor)
5097 mono_mb_emit_byte (mb, CEE_LDNULL);
5099 case MONO_TYPE_BOOLEAN:
5100 case MONO_TYPE_CHAR:
5113 case MONO_TYPE_VALUETYPE:
5114 case MONO_TYPE_TYPEDBYREF:
5115 case MONO_TYPE_GENERICINST:
5116 /* box value types */
5117 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
5119 case MONO_TYPE_STRING:
5120 case MONO_TYPE_CLASS:
5121 case MONO_TYPE_ARRAY:
5122 case MONO_TYPE_SZARRAY:
5123 case MONO_TYPE_OBJECT:
5128 g_assert_not_reached ();
5131 mono_mb_emit_stloc (mb, 0);
5133 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5135 mono_loader_lock ();
5136 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
5137 mono_loader_unlock ();
5138 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5139 clause->try_len = mono_mb_get_label (mb);
5142 clause->data.filter_offset = mono_mb_get_label (mb);
5144 mono_mb_emit_byte (mb, CEE_POP);
5145 mono_mb_emit_byte (mb, CEE_LDARG_2);
5146 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5147 mono_mb_emit_byte (mb, CEE_PREFIX1);
5148 mono_mb_emit_byte (mb, CEE_CGT_UN);
5149 mono_mb_emit_byte (mb, CEE_PREFIX1);
5150 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5152 clause->handler_offset = mono_mb_get_label (mb);
5155 /* store exception */
5156 mono_mb_emit_stloc (mb, 1);
5158 mono_mb_emit_byte (mb, CEE_LDARG_2);
5159 mono_mb_emit_ldloc (mb, 1);
5160 mono_mb_emit_byte (mb, CEE_STIND_REF);
5162 mono_mb_emit_byte (mb, CEE_LDNULL);
5163 mono_mb_emit_stloc (mb, 0);
5165 /* Check for the abort exception */
5166 mono_mb_emit_ldloc (mb, 1);
5167 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5168 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5170 /* Delay the abort exception */
5171 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
5173 mono_mb_patch_short_branch (mb, posna);
5174 mono_mb_emit_branch (mb, CEE_LEAVE);
5176 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
5178 mono_mb_set_clauses (mb, 1, clause);
5181 mono_mb_patch_branch (mb, pos);
5182 mono_mb_emit_ldloc (mb, 0);
5183 mono_mb_emit_byte (mb, CEE_RET);
5185 if (need_direct_wrapper) {
5186 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
5188 /* taken from mono_mb_create_and_cache */
5189 mono_marshal_lock ();
5190 res = g_hash_table_lookup (cache, callsig);
5191 mono_marshal_unlock ();
5193 /* Somebody may have created it before us */
5196 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
5198 mono_marshal_lock ();
5199 res = g_hash_table_lookup (cache, callsig);
5202 g_hash_table_insert (cache, callsig, res);
5203 /* Can't insert it into wrapper_hash since the key is a signature */
5204 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
5206 mono_free_method (newm);
5208 mono_marshal_unlock ();
5211 /* end mono_mb_create_and_cache */
5220 * mono_marshal_get_static_rgctx_invoke:
5223 * Generates a wrapper for calling a generic shared method, either
5224 * static or generic. We need this for virtual generic method lookup
5225 * and ldftn when we do generic code sharing. Instead of producing
5226 * the address of the method we produce the address of a wrapper for
5227 * the method because the wrapper passes the (method) runtime generic
5228 * context argument which calli cannot do.
5231 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
5233 static gboolean inited = FALSE;
5234 static int num_wrappers = 0;
5236 MonoMethodBuilder *mb;
5238 MonoClass *target_klass = method->klass;
5239 MonoMethodSignature *sig = mono_method_signature (method);
5243 MonoImage *image = method->klass->image;
5245 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
5246 if ((res = mono_marshal_find_in_cache (cache, method)))
5250 mono_counters_register ("static rgctx invoke wrappers",
5251 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
5256 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
5257 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
5260 for (i = 0; i < sig->param_count + sig->hasthis; i++)
5261 mono_mb_emit_ldarg (mb, i);
5262 mono_mb_emit_op (mb, CEE_CALL, method);
5263 mono_mb_emit_byte (mb, CEE_RET);
5265 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
5266 sig->param_count + sig->hasthis + 4);
5267 res->skip_visibility = TRUE;
5268 res->flags = method->flags;
5276 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5278 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5279 klass->name_space, klass->name);
5281 mono_mb_emit_exception_marshal_directive (mb, msg);
5285 * mono_marshal_get_ldfld_remote_wrapper:
5286 * @klass: The return type
5288 * This method generates a wrapper for calling mono_load_remote_field_new.
5289 * The return type is ignored for now, as mono_load_remote_field_new () always
5290 * returns an object. In the future, to optimize some codepaths, we might
5291 * call a different function that takes a pointer to a valuetype, instead.
5294 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5296 MonoMethodSignature *sig, *csig;
5297 MonoMethodBuilder *mb;
5299 static MonoMethod* cached = NULL;
5301 mono_marshal_lock ();
5303 mono_marshal_unlock ();
5306 mono_marshal_unlock ();
5308 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5310 mb->method->save_lmf = 1;
5312 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5313 sig->params [0] = &mono_defaults.object_class->byval_arg;
5314 sig->params [1] = &mono_defaults.int_class->byval_arg;
5315 sig->params [2] = &mono_defaults.int_class->byval_arg;
5316 sig->ret = &mono_defaults.object_class->byval_arg;
5318 mono_mb_emit_ldarg (mb, 0);
5319 mono_mb_emit_ldarg (mb, 1);
5320 mono_mb_emit_ldarg (mb, 2);
5322 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5323 csig->params [0] = &mono_defaults.object_class->byval_arg;
5324 csig->params [1] = &mono_defaults.int_class->byval_arg;
5325 csig->params [2] = &mono_defaults.int_class->byval_arg;
5326 csig->ret = &mono_defaults.object_class->byval_arg;
5329 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5330 emit_thread_interrupt_checkpoint (mb);
5332 mono_mb_emit_byte (mb, CEE_RET);
5334 mono_marshal_lock ();
5336 mono_marshal_unlock ();
5339 newm = mono_mb_create_method (mb, sig, 4);
5340 mono_marshal_lock ();
5345 mono_marshal_unlock ();
5347 mono_marshal_unlock ();
5348 mono_free_method (newm);
5357 * mono_marshal_get_ldfld_wrapper:
5358 * @type: the type of the field
5360 * This method generates a function which can be use to load a field with type
5361 * @type from an object. The generated function has the following signature:
5362 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5365 mono_marshal_get_ldfld_wrapper (MonoType *type)
5367 MonoMethodSignature *sig;
5368 MonoMethodBuilder *mb;
5373 int t, pos0, pos1 = 0;
5375 type = mono_type_get_underlying_type (type);
5380 if (type->type == MONO_TYPE_SZARRAY) {
5381 klass = mono_defaults.array_class;
5382 } else if (type->type == MONO_TYPE_VALUETYPE) {
5383 klass = type->data.klass;
5384 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5385 klass = mono_defaults.object_class;
5386 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5387 klass = mono_defaults.int_class;
5388 } else if (t == MONO_TYPE_GENERICINST) {
5389 if (mono_type_generic_inst_is_valuetype (type))
5390 klass = mono_class_from_mono_type (type);
5392 klass = mono_defaults.object_class;
5394 klass = mono_class_from_mono_type (type);
5397 klass = mono_defaults.int_class;
5400 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5401 if ((res = mono_marshal_find_in_cache (cache, klass)))
5404 /* we add the %p pointer value of klass because class names are not unique */
5405 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5406 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5409 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5410 sig->params [0] = &mono_defaults.object_class->byval_arg;
5411 sig->params [1] = &mono_defaults.int_class->byval_arg;
5412 sig->params [2] = &mono_defaults.int_class->byval_arg;
5413 sig->params [3] = &mono_defaults.int_class->byval_arg;
5414 sig->ret = &klass->byval_arg;
5416 mono_mb_emit_ldarg (mb, 0);
5417 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5419 mono_mb_emit_ldarg (mb, 0);
5420 mono_mb_emit_ldarg (mb, 1);
5421 mono_mb_emit_ldarg (mb, 2);
5423 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5426 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5427 csig->params [0] = &mono_defaults.object_class->byval_arg;
5428 csig->params [1] = &mono_defaults.int_class->byval_arg;
5429 csig->params [2] = &mono_defaults.int_class->byval_arg;
5430 csig->ret = &klass->this_arg;
5433 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5434 emit_thread_interrupt_checkpoint (mb);
5437 if (klass->valuetype) {
5438 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5439 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5441 mono_mb_emit_byte (mb, CEE_RET);
5445 mono_mb_patch_branch (mb, pos0);
5447 mono_mb_emit_ldarg (mb, 0);
5448 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5449 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5450 mono_mb_emit_ldarg (mb, 3);
5451 mono_mb_emit_byte (mb, CEE_ADD);
5453 if (klass->valuetype)
5454 mono_mb_patch_branch (mb, pos1);
5459 case MONO_TYPE_BOOLEAN:
5460 case MONO_TYPE_CHAR:
5469 case MONO_TYPE_ARRAY:
5470 case MONO_TYPE_SZARRAY:
5471 case MONO_TYPE_OBJECT:
5472 case MONO_TYPE_CLASS:
5473 case MONO_TYPE_STRING:
5477 case MONO_TYPE_FNPTR:
5478 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5480 case MONO_TYPE_VALUETYPE:
5481 g_assert (!klass->enumtype);
5482 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5484 case MONO_TYPE_GENERICINST:
5485 if (mono_type_generic_inst_is_valuetype (type)) {
5486 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5488 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5492 g_warning ("type %x not implemented", type->type);
5493 g_assert_not_reached ();
5496 mono_mb_emit_byte (mb, CEE_RET);
5498 res = mono_mb_create_and_cache (cache, klass,
5499 mb, sig, sig->param_count + 16);
5506 * mono_marshal_get_ldflda_wrapper:
5507 * @type: the type of the field
5509 * This method generates a function which can be used to load a field address
5510 * from an object. The generated function has the following signature:
5511 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5514 mono_marshal_get_ldflda_wrapper (MonoType *type)
5516 MonoMethodSignature *sig;
5517 MonoMethodBuilder *mb;
5522 int t, pos0, pos1, pos2, pos3;
5524 type = mono_type_get_underlying_type (type);
5528 if (type->type == MONO_TYPE_SZARRAY) {
5529 klass = mono_defaults.array_class;
5530 } else if (type->type == MONO_TYPE_VALUETYPE) {
5531 klass = type->data.klass;
5532 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5533 t == MONO_TYPE_CLASS) {
5534 klass = mono_defaults.object_class;
5535 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5536 klass = mono_defaults.int_class;
5537 } else if (t == MONO_TYPE_GENERICINST) {
5538 if (mono_type_generic_inst_is_valuetype (type))
5539 klass = mono_class_from_mono_type (type);
5541 klass = mono_defaults.object_class;
5543 klass = mono_class_from_mono_type (type);
5546 klass = mono_defaults.int_class;
5549 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5550 if ((res = mono_marshal_find_in_cache (cache, klass)))
5553 /* we add the %p pointer value of klass because class names are not unique */
5554 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5555 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5558 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5559 sig->params [0] = &mono_defaults.object_class->byval_arg;
5560 sig->params [1] = &mono_defaults.int_class->byval_arg;
5561 sig->params [2] = &mono_defaults.int_class->byval_arg;
5562 sig->params [3] = &mono_defaults.int_class->byval_arg;
5563 sig->ret = &mono_defaults.int_class->byval_arg;
5565 /* if typeof (this) != transparent_proxy goto pos0 */
5566 mono_mb_emit_ldarg (mb, 0);
5567 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5569 /* if same_appdomain goto pos1 */
5570 mono_mb_emit_ldarg (mb, 0);
5571 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5573 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5575 /* same app domain */
5576 mono_mb_patch_branch (mb, pos1);
5578 /* if typeof (this) != contextbound goto pos2 */
5579 mono_mb_emit_ldarg (mb, 0);
5580 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5582 /* if this->rp->context == mono_context_get goto pos3 */
5583 mono_mb_emit_ldarg (mb, 0);
5584 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5585 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5586 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5587 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5588 mono_mb_emit_icall (mb, mono_context_get);
5589 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5591 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5593 mono_mb_patch_branch (mb, pos2);
5594 mono_mb_patch_branch (mb, pos3);
5596 /* return the address of the field from this->rp->unwrapped_server */
5597 mono_mb_emit_ldarg (mb, 0);
5598 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5599 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5600 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5601 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5602 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5603 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5604 mono_mb_emit_ldarg (mb, 3);
5605 mono_mb_emit_byte (mb, CEE_ADD);
5606 mono_mb_emit_byte (mb, CEE_RET);
5608 /* not a proxy: return the address of the field directly */
5609 mono_mb_patch_branch (mb, pos0);
5611 mono_mb_emit_ldarg (mb, 0);
5612 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5613 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5614 mono_mb_emit_ldarg (mb, 3);
5615 mono_mb_emit_byte (mb, CEE_ADD);
5617 mono_mb_emit_byte (mb, CEE_RET);
5619 res = mono_mb_create_and_cache (cache, klass,
5620 mb, sig, sig->param_count + 16);
5627 * mono_marshal_get_stfld_remote_wrapper:
5628 * klass: The type of the field
5630 * This function generates a wrapper for calling mono_store_remote_field_new
5631 * with the appropriate signature.
5632 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5633 * klass argument anymore.
5636 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5638 MonoMethodSignature *sig, *csig;
5639 MonoMethodBuilder *mb;
5641 static MonoMethod *cached = NULL;
5643 mono_marshal_lock ();
5645 mono_marshal_unlock ();
5648 mono_marshal_unlock ();
5650 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5652 mb->method->save_lmf = 1;
5654 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5655 sig->params [0] = &mono_defaults.object_class->byval_arg;
5656 sig->params [1] = &mono_defaults.int_class->byval_arg;
5657 sig->params [2] = &mono_defaults.int_class->byval_arg;
5658 sig->params [3] = &mono_defaults.object_class->byval_arg;
5659 sig->ret = &mono_defaults.void_class->byval_arg;
5661 mono_mb_emit_ldarg (mb, 0);
5662 mono_mb_emit_ldarg (mb, 1);
5663 mono_mb_emit_ldarg (mb, 2);
5664 mono_mb_emit_ldarg (mb, 3);
5666 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5667 csig->params [0] = &mono_defaults.object_class->byval_arg;
5668 csig->params [1] = &mono_defaults.int_class->byval_arg;
5669 csig->params [2] = &mono_defaults.int_class->byval_arg;
5670 csig->params [3] = &mono_defaults.object_class->byval_arg;
5671 csig->ret = &mono_defaults.void_class->byval_arg;
5674 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5675 emit_thread_interrupt_checkpoint (mb);
5677 mono_mb_emit_byte (mb, CEE_RET);
5679 mono_marshal_lock ();
5681 mono_marshal_unlock ();
5684 newm = mono_mb_create_method (mb, sig, 6);
5685 mono_marshal_lock ();
5690 mono_marshal_unlock ();
5692 mono_marshal_unlock ();
5693 mono_free_method (newm);
5702 * mono_marshal_get_stfld_wrapper:
5703 * @type: the type of the field
5705 * This method generates a function which can be use to store a field with type
5706 * @type. The generated function has the following signature:
5707 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5710 mono_marshal_get_stfld_wrapper (MonoType *type)
5712 MonoMethodSignature *sig;
5713 MonoMethodBuilder *mb;
5720 type = mono_type_get_underlying_type (type);
5724 if (type->type == MONO_TYPE_SZARRAY) {
5725 klass = mono_defaults.array_class;
5726 } else if (type->type == MONO_TYPE_VALUETYPE) {
5727 klass = type->data.klass;
5728 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5729 klass = mono_defaults.object_class;
5730 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5731 klass = mono_defaults.int_class;
5732 } else if (t == MONO_TYPE_GENERICINST) {
5733 if (mono_type_generic_inst_is_valuetype (type))
5734 klass = mono_class_from_mono_type (type);
5736 klass = mono_defaults.object_class;
5738 klass = mono_class_from_mono_type (type);
5741 klass = mono_defaults.int_class;
5744 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5745 if ((res = mono_marshal_find_in_cache (cache, klass)))
5748 /* we add the %p pointer value of klass because class names are not unique */
5749 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5750 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5753 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5754 sig->params [0] = &mono_defaults.object_class->byval_arg;
5755 sig->params [1] = &mono_defaults.int_class->byval_arg;
5756 sig->params [2] = &mono_defaults.int_class->byval_arg;
5757 sig->params [3] = &mono_defaults.int_class->byval_arg;
5758 sig->params [4] = &klass->byval_arg;
5759 sig->ret = &mono_defaults.void_class->byval_arg;
5761 mono_mb_emit_ldarg (mb, 0);
5762 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5764 mono_mb_emit_ldarg (mb, 0);
5765 mono_mb_emit_ldarg (mb, 1);
5766 mono_mb_emit_ldarg (mb, 2);
5767 mono_mb_emit_ldarg (mb, 4);
5768 if (klass->valuetype)
5769 mono_mb_emit_op (mb, CEE_BOX, klass);
5771 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5773 mono_mb_emit_byte (mb, CEE_RET);
5775 mono_mb_patch_branch (mb, pos);
5777 mono_mb_emit_ldarg (mb, 0);
5778 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5779 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5780 mono_mb_emit_ldarg (mb, 3);
5781 mono_mb_emit_byte (mb, CEE_ADD);
5782 mono_mb_emit_ldarg (mb, 4);
5787 case MONO_TYPE_BOOLEAN:
5788 case MONO_TYPE_CHAR:
5797 case MONO_TYPE_ARRAY:
5798 case MONO_TYPE_SZARRAY:
5799 case MONO_TYPE_OBJECT:
5800 case MONO_TYPE_CLASS:
5801 case MONO_TYPE_STRING:
5805 case MONO_TYPE_FNPTR:
5806 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5808 case MONO_TYPE_VALUETYPE:
5809 g_assert (!klass->enumtype);
5810 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5812 case MONO_TYPE_GENERICINST:
5813 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5816 g_warning ("type %x not implemented", type->type);
5817 g_assert_not_reached ();
5820 mono_mb_emit_byte (mb, CEE_RET);
5822 res = mono_mb_create_and_cache (cache, klass,
5823 mb, sig, sig->param_count + 16);
5830 * generates IL code for the icall wrapper (the generated method
5831 * calls the unmanaged code in func)
5834 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5836 MonoMethodSignature *csig;
5837 MonoMethodBuilder *mb;
5841 g_assert (sig->pinvoke);
5843 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5845 mb->method->save_lmf = 1;
5847 /* we copy the signature, so that we can modify it */
5850 mono_mb_emit_byte (mb, CEE_LDARG_0);
5852 for (i = 0; i < sig->param_count; i++)
5853 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5855 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5856 if (check_exceptions)
5857 emit_thread_interrupt_checkpoint (mb);
5858 mono_mb_emit_byte (mb, CEE_RET);
5860 csig = signature_dup (mono_defaults.corlib, sig);
5862 if (csig->call_convention == MONO_CALL_VARARG)
5863 csig->call_convention = 0;
5865 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5872 MonoMethodBuilder *mb;
5873 MonoMethodSignature *sig;
5874 MonoMethodPInvoke *piinfo;
5875 int *orig_conv_args; /* Locals containing the original values of byref args */
5877 MonoClass *retobj_class;
5878 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5879 MonoImage *image; /* The image to use for looking up custom marshallers */
5880 } EmitMarshalContext;
5884 * This is invoked to convert arguments from the current types to
5885 * the underlying types expected by the platform routine. If required,
5886 * the methods create a temporary variable with the proper type, and return
5887 * the location for it (either the passed argument, or the newly allocated
5890 MARSHAL_ACTION_CONV_IN,
5893 * This operation is called to push the actual value that was optionally
5894 * converted on the first stage
5896 MARSHAL_ACTION_PUSH,
5899 * Convert byref arguments back or free resources allocated during the
5902 MARSHAL_ACTION_CONV_OUT,
5905 * The result from the unmanaged call is at the top of the stack when
5906 * this action is invoked. The result should be stored in the
5907 * third local variable slot.
5909 MARSHAL_ACTION_CONV_RESULT,
5911 MARSHAL_ACTION_MANAGED_CONV_IN,
5912 MARSHAL_ACTION_MANAGED_CONV_OUT,
5913 MARSHAL_ACTION_MANAGED_CONV_RESULT
5917 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5918 MonoMarshalSpec *spec,
5919 int conv_arg, MonoType **conv_arg_type,
5920 MarshalAction action)
5924 static MonoClass *ICustomMarshaler = NULL;
5925 static MonoMethod *cleanup_native, *cleanup_managed;
5926 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5927 MonoMethod *get_instance;
5928 MonoMethodBuilder *mb = m->mb;
5929 char *exception_msg = NULL;
5933 if (!ICustomMarshaler) {
5934 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5935 g_assert (ICustomMarshaler);
5937 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5938 g_assert (cleanup_native);
5939 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5940 g_assert (cleanup_managed);
5941 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5942 g_assert (marshal_managed_to_native);
5943 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5944 g_assert (marshal_native_to_managed);
5947 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5948 g_assert (mtype != NULL);
5949 mklass = mono_class_from_mono_type (mtype);
5950 g_assert (mklass != NULL);
5952 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5953 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5955 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5957 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5958 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5959 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5960 (get_sig->params [0]->type != MONO_TYPE_STRING))
5961 get_instance = NULL;
5965 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);
5967 /* Throw exception and emit compensation code if neccesary */
5968 if (exception_msg) {
5970 case MARSHAL_ACTION_CONV_IN:
5971 case MARSHAL_ACTION_CONV_RESULT:
5972 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5973 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5974 mono_mb_emit_byte (mb, CEE_POP);
5976 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5977 g_free (exception_msg);
5980 case MARSHAL_ACTION_PUSH:
5981 mono_mb_emit_byte (mb, CEE_LDNULL);
5989 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5990 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5993 case MARSHAL_ACTION_CONV_IN:
5995 case MONO_TYPE_CLASS:
5996 case MONO_TYPE_OBJECT:
5997 case MONO_TYPE_STRING:
5998 case MONO_TYPE_ARRAY:
5999 case MONO_TYPE_SZARRAY:
6000 case MONO_TYPE_VALUETYPE:
6004 g_warning ("custom marshalling of type %x is currently not supported", t->type);
6005 g_assert_not_reached ();
6009 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6011 mono_mb_emit_byte (mb, CEE_LDNULL);
6012 mono_mb_emit_stloc (mb, conv_arg);
6014 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
6017 /* Minic MS.NET behavior */
6018 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
6021 /* Check for null */
6022 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_byte (mb, CEE_LDIND_I);
6025 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6027 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6029 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6031 mono_mb_emit_ldarg (mb, argnum);
6033 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6035 if (t->type == MONO_TYPE_VALUETYPE) {
6037 * Since we can't determine the type of the argument, we
6038 * will assume the unmanaged function takes a pointer.
6040 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6042 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
6045 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6046 mono_mb_emit_stloc (mb, conv_arg);
6048 mono_mb_patch_branch (mb, pos2);
6051 case MARSHAL_ACTION_CONV_OUT:
6052 /* Check for null */
6053 mono_mb_emit_ldloc (mb, conv_arg);
6054 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6057 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6061 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6063 mono_mb_emit_ldloc (mb, conv_arg);
6064 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6065 mono_mb_emit_byte (mb, CEE_STIND_REF);
6066 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6067 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6069 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6071 mono_mb_emit_ldloc (mb, conv_arg);
6072 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6074 /* We have nowhere to store the result */
6075 mono_mb_emit_byte (mb, CEE_POP);
6078 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6080 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6082 mono_mb_emit_ldloc (mb, conv_arg);
6084 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6086 mono_mb_patch_branch (mb, pos2);
6089 case MARSHAL_ACTION_PUSH:
6091 mono_mb_emit_ldloc_addr (mb, conv_arg);
6093 mono_mb_emit_ldloc (mb, conv_arg);
6096 case MARSHAL_ACTION_CONV_RESULT:
6097 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6099 mono_mb_emit_stloc (mb, 3);
6101 mono_mb_emit_ldloc (mb, 3);
6102 mono_mb_emit_stloc (mb, loc1);
6104 /* Check for null */
6105 mono_mb_emit_ldloc (mb, 3);
6106 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6108 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6110 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6111 mono_mb_emit_byte (mb, CEE_DUP);
6113 mono_mb_emit_ldloc (mb, 3);
6114 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6115 mono_mb_emit_stloc (mb, 3);
6117 mono_mb_emit_ldloc (mb, loc1);
6118 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6120 mono_mb_patch_branch (mb, pos2);
6123 case MARSHAL_ACTION_MANAGED_CONV_IN:
6124 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6126 mono_mb_emit_byte (mb, CEE_LDNULL);
6127 mono_mb_emit_stloc (mb, conv_arg);
6129 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6132 /* Check for null */
6133 mono_mb_emit_ldarg (mb, argnum);
6135 mono_mb_emit_byte (mb, CEE_LDIND_I);
6136 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6138 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6139 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6141 mono_mb_emit_ldarg (mb, argnum);
6143 mono_mb_emit_byte (mb, CEE_LDIND_I);
6145 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6146 mono_mb_emit_stloc (mb, conv_arg);
6148 mono_mb_patch_branch (mb, pos2);
6151 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6152 g_assert (!t->byref);
6154 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6156 mono_mb_emit_stloc (mb, 3);
6158 mono_mb_emit_ldloc (mb, 3);
6159 mono_mb_emit_stloc (mb, loc1);
6161 /* Check for null */
6162 mono_mb_emit_ldloc (mb, 3);
6163 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6165 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6166 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6167 mono_mb_emit_byte (mb, CEE_DUP);
6169 mono_mb_emit_ldloc (mb, 3);
6170 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6171 mono_mb_emit_stloc (mb, 3);
6173 mono_mb_emit_ldloc (mb, loc1);
6174 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6176 mono_mb_patch_branch (mb, pos2);
6179 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6181 /* Check for null */
6182 mono_mb_emit_ldloc (mb, conv_arg);
6183 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6186 mono_mb_emit_ldarg (mb, argnum);
6188 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6190 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6192 mono_mb_emit_ldloc (mb, conv_arg);
6193 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6194 mono_mb_emit_byte (mb, CEE_STIND_I);
6197 /* Call CleanUpManagedData */
6198 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6200 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6202 mono_mb_emit_ldloc (mb, conv_arg);
6203 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6205 mono_mb_patch_branch (mb, pos2);
6209 g_assert_not_reached ();
6216 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6217 MonoMarshalSpec *spec,
6218 int conv_arg, MonoType **conv_arg_type,
6219 MarshalAction action)
6221 MonoMethodBuilder *mb = m->mb;
6224 case MARSHAL_ACTION_CONV_IN: {
6225 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6227 g_assert (t->type == MONO_TYPE_OBJECT);
6228 g_assert (!t->byref);
6230 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6231 mono_mb_emit_ldarg (mb, argnum);
6232 mono_mb_emit_icon (mb, encoding);
6233 mono_mb_emit_icon (mb, t->attrs);
6234 mono_mb_emit_icall (mb, mono_marshal_asany);
6235 mono_mb_emit_stloc (mb, conv_arg);
6239 case MARSHAL_ACTION_PUSH:
6240 mono_mb_emit_ldloc (mb, conv_arg);
6243 case MARSHAL_ACTION_CONV_OUT: {
6244 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6246 mono_mb_emit_ldarg (mb, argnum);
6247 mono_mb_emit_ldloc (mb, conv_arg);
6248 mono_mb_emit_icon (mb, encoding);
6249 mono_mb_emit_icon (mb, t->attrs);
6250 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6255 g_assert_not_reached ();
6262 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6263 MonoMarshalSpec *spec,
6264 int conv_arg, MonoType **conv_arg_type,
6265 MarshalAction action)
6267 MonoMethodBuilder *mb = m->mb;
6271 klass = mono_class_from_mono_type (t);
6274 case MARSHAL_ACTION_CONV_IN:
6275 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6276 klass->blittable || klass->enumtype)
6279 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6281 /* store the address of the source into local variable 0 */
6283 mono_mb_emit_ldarg (mb, argnum);
6285 mono_mb_emit_ldarg_addr (mb, argnum);
6287 mono_mb_emit_stloc (mb, 0);
6289 /* allocate space for the native struct and
6290 * store the address into local variable 1 (dest) */
6291 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6292 mono_mb_emit_byte (mb, CEE_PREFIX1);
6293 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6294 mono_mb_emit_stloc (mb, conv_arg);
6297 mono_mb_emit_ldloc (mb, 0);
6298 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6301 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6303 mono_mb_emit_ldloc (mb, conv_arg);
6304 mono_mb_emit_stloc (mb, 1);
6306 /* emit valuetype conversion code */
6307 emit_struct_conv (mb, klass, FALSE);
6311 mono_mb_patch_branch (mb, pos);
6314 case MARSHAL_ACTION_PUSH:
6315 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6317 g_assert (!t->byref);
6319 /* Have to change the signature since the vtype is passed byref */
6320 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6322 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6323 klass->blittable || klass->enumtype)
6324 mono_mb_emit_ldarg_addr (mb, argnum);
6326 mono_mb_emit_ldloc (mb, conv_arg);
6330 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6331 klass->blittable || klass->enumtype) {
6332 mono_mb_emit_ldarg (mb, argnum);
6335 mono_mb_emit_ldloc (mb, conv_arg);
6337 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6338 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6342 case MARSHAL_ACTION_CONV_OUT:
6343 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6344 klass->blittable || klass->enumtype)
6348 /* dst = argument */
6349 mono_mb_emit_ldarg (mb, argnum);
6350 mono_mb_emit_stloc (mb, 1);
6352 mono_mb_emit_ldloc (mb, 1);
6353 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6355 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6356 /* src = tmp_locals [i] */
6357 mono_mb_emit_ldloc (mb, conv_arg);
6358 mono_mb_emit_stloc (mb, 0);
6360 /* emit valuetype conversion code */
6361 emit_struct_conv (mb, klass, TRUE);
6365 emit_struct_free (mb, klass, conv_arg);
6368 mono_mb_patch_branch (mb, pos);
6371 case MARSHAL_ACTION_CONV_RESULT:
6372 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6374 mono_mb_emit_stloc (mb, 3);
6377 /* load pointer to returned value type */
6378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6379 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6380 /* store the address of the source into local variable 0 */
6381 mono_mb_emit_stloc (mb, 0);
6383 mono_mb_emit_ldloc_addr (mb, 3);
6384 mono_mb_emit_stloc (mb, 1);
6386 /* emit valuetype conversion code */
6387 emit_struct_conv (mb, klass, TRUE);
6390 case MARSHAL_ACTION_MANAGED_CONV_IN:
6391 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6392 klass->blittable || klass->enumtype) {
6397 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6399 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6403 mono_mb_emit_ldarg (mb, argnum);
6405 mono_mb_emit_ldarg_addr (mb, argnum);
6406 mono_mb_emit_stloc (mb, 0);
6409 mono_mb_emit_ldloc (mb, 0);
6410 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6413 mono_mb_emit_ldloc_addr (mb, conv_arg);
6414 mono_mb_emit_stloc (mb, 1);
6416 /* emit valuetype conversion code */
6417 emit_struct_conv (mb, klass, TRUE);
6420 mono_mb_patch_branch (mb, pos);
6423 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6424 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6425 klass->blittable || klass->enumtype) {
6429 /* Check for null */
6430 mono_mb_emit_ldarg (mb, argnum);
6431 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6434 mono_mb_emit_ldloc_addr (mb, conv_arg);
6435 mono_mb_emit_stloc (mb, 0);
6438 mono_mb_emit_ldarg (mb, argnum);
6439 mono_mb_emit_stloc (mb, 1);
6441 /* emit valuetype conversion code */
6442 emit_struct_conv (mb, klass, FALSE);
6444 mono_mb_patch_branch (mb, pos2);
6447 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6448 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6449 klass->blittable || klass->enumtype) {
6450 mono_mb_emit_stloc (mb, 3);
6455 /* load pointer to returned value type */
6456 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6457 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6459 /* store the address of the source into local variable 0 */
6460 mono_mb_emit_stloc (mb, 0);
6461 /* allocate space for the native struct and
6462 * store the address into dst_ptr */
6463 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6464 m->retobj_class = klass;
6465 g_assert (m->retobj_var);
6466 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6467 mono_mb_emit_byte (mb, CEE_CONV_I);
6468 mono_mb_emit_icall (mb, mono_marshal_alloc);
6469 mono_mb_emit_stloc (mb, 1);
6470 mono_mb_emit_ldloc (mb, 1);
6471 mono_mb_emit_stloc (mb, m->retobj_var);
6473 /* emit valuetype conversion code */
6474 emit_struct_conv (mb, klass, FALSE);
6478 g_assert_not_reached ();
6485 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6486 MonoMarshalSpec *spec,
6487 int conv_arg, MonoType **conv_arg_type,
6488 MarshalAction action)
6490 MonoMethodBuilder *mb = m->mb;
6491 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6492 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6496 case MARSHAL_ACTION_CONV_IN:
6497 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6498 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6501 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6504 mono_mb_emit_ldarg (mb, argnum);
6505 mono_mb_emit_byte (mb, CEE_LDIND_I);
6507 mono_mb_emit_ldarg (mb, argnum);
6511 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6512 MonoException *exc = mono_get_exception_not_implemented (msg);
6515 mono_raise_exception (exc);
6518 mono_mb_emit_icall (mb, conv_to_icall (conv));
6520 mono_mb_emit_stloc (mb, conv_arg);
6523 case MARSHAL_ACTION_CONV_OUT:
6524 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6526 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6527 mono_mb_emit_exception_marshal_directive (mb, msg);
6531 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6532 mono_mb_emit_ldarg (mb, argnum);
6533 mono_mb_emit_ldloc (mb, conv_arg);
6534 mono_mb_emit_icall (mb, conv_to_icall (conv));
6535 mono_mb_emit_byte (mb, CEE_STIND_REF);
6538 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6539 mono_mb_emit_ldloc (mb, conv_arg);
6540 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6541 mono_mb_emit_icall (mb, mono_free_bstr);
6543 mono_mb_emit_icall (mb, mono_marshal_free);
6547 case MARSHAL_ACTION_PUSH:
6549 mono_mb_emit_ldloc_addr (mb, conv_arg);
6551 mono_mb_emit_ldloc (mb, conv_arg);
6554 case MARSHAL_ACTION_CONV_RESULT:
6555 mono_mb_emit_stloc (mb, 0);
6557 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6559 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6560 mono_mb_emit_exception_marshal_directive (mb, msg);
6564 mono_mb_emit_ldloc (mb, 0);
6565 mono_mb_emit_icall (mb, conv_to_icall (conv));
6566 mono_mb_emit_stloc (mb, 3);
6568 /* free the string */
6569 mono_mb_emit_ldloc (mb, 0);
6570 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6571 mono_mb_emit_icall (mb, mono_free_bstr);
6573 mono_mb_emit_icall (mb, mono_marshal_free);
6576 case MARSHAL_ACTION_MANAGED_CONV_IN:
6577 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6579 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6581 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6583 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6584 mono_mb_emit_exception_marshal_directive (mb, msg);
6588 mono_mb_emit_ldarg (mb, argnum);
6590 mono_mb_emit_byte (mb, CEE_LDIND_I);
6591 mono_mb_emit_icall (mb, conv_to_icall (conv));
6592 mono_mb_emit_stloc (mb, conv_arg);
6595 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6598 mono_mb_emit_ldarg (mb, argnum);
6599 mono_mb_emit_ldloc (mb, conv_arg);
6600 mono_mb_emit_icall (mb, conv_to_icall (conv));
6601 mono_mb_emit_byte (mb, CEE_STIND_I);
6606 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6607 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6608 /* We need to make a copy so the caller is able to free it */
6609 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6611 mono_mb_emit_icall (mb, conv_to_icall (conv));
6612 mono_mb_emit_stloc (mb, 3);
6616 g_assert_not_reached ();
6623 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6624 MonoMarshalSpec *spec, int conv_arg,
6625 MonoType **conv_arg_type, MarshalAction action)
6627 MonoMethodBuilder *mb = m->mb;
6630 case MARSHAL_ACTION_CONV_IN: {
6631 MonoType *intptr_type;
6632 int dar_release_slot, pos;
6634 intptr_type = &mono_defaults.int_class->byval_arg;
6635 conv_arg = mono_mb_add_local (mb, intptr_type);
6636 *conv_arg_type = intptr_type;
6638 if (!sh_dangerous_add_ref)
6639 init_safe_handle ();
6641 mono_mb_emit_ldarg (mb, argnum);
6642 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6643 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6645 mono_mb_patch_branch (mb, pos);
6648 * My tests in show that ref SafeHandles are not really
6649 * passed as ref objects. Instead a NULL is passed as the
6652 mono_mb_emit_icon (mb, 0);
6653 mono_mb_emit_stloc (mb, conv_arg);
6657 /* Create local to hold the ref parameter to DangerousAddRef */
6658 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6660 /* set release = false; */
6661 mono_mb_emit_icon (mb, 0);
6662 mono_mb_emit_stloc (mb, dar_release_slot);
6664 /* safehandle.DangerousAddRef (ref release) */
6665 mono_mb_emit_ldarg (mb, argnum);
6666 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6667 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6669 /* Pull the handle field from SafeHandle */
6670 mono_mb_emit_ldarg (mb, argnum);
6671 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6672 mono_mb_emit_byte (mb, CEE_LDIND_I);
6673 mono_mb_emit_stloc (mb, conv_arg);
6678 case MARSHAL_ACTION_PUSH:
6680 mono_mb_emit_ldloc_addr (mb, conv_arg);
6682 mono_mb_emit_ldloc (mb, conv_arg);
6685 case MARSHAL_ACTION_CONV_OUT: {
6686 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6687 int dar_release_slot = conv_arg + 1;
6690 if (!sh_dangerous_release)
6691 init_safe_handle ();
6697 * My tests indicate that ref SafeHandles parameters are not actually
6698 * passed by ref, but instead a new Handle is created regardless of
6699 * whether a change happens in the unmanaged side.
6701 * Also, the Handle is created before calling into unmanaged code,
6702 * but we do not support that mechanism (getting to the original
6703 * handle) and it makes no difference where we create this
6705 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6707 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6710 /* refval = new SafeHandleDerived ()*/
6711 mono_mb_emit_ldarg (mb, argnum);
6712 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6713 mono_mb_emit_byte (mb, CEE_STIND_REF);
6715 /* refval.handle = returned_handle */
6716 mono_mb_emit_ldarg (mb, argnum);
6717 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6718 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6719 mono_mb_emit_ldloc (mb, conv_arg);
6720 mono_mb_emit_byte (mb, CEE_STIND_I);
6722 mono_mb_emit_ldloc (mb, dar_release_slot);
6723 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6724 mono_mb_emit_ldarg (mb, argnum);
6725 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6726 mono_mb_patch_branch (mb, label_next);
6731 case MARSHAL_ACTION_CONV_RESULT: {
6732 MonoMethod *ctor = NULL;
6733 int intptr_handle_slot;
6735 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6736 mono_mb_emit_byte (mb, CEE_POP);
6737 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6741 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6743 mono_mb_emit_byte (mb, CEE_POP);
6744 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6747 /* Store the IntPtr results into a local */
6748 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6749 mono_mb_emit_stloc (mb, intptr_handle_slot);
6751 /* Create return value */
6752 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6753 mono_mb_emit_stloc (mb, 3);
6755 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6756 mono_mb_emit_ldloc (mb, 3);
6757 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6758 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6759 mono_mb_emit_byte (mb, CEE_STIND_I);
6763 case MARSHAL_ACTION_MANAGED_CONV_IN:
6764 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6767 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6768 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6771 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6772 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6775 printf ("Unhandled case for MarshalAction: %d\n", action);
6782 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6783 MonoMarshalSpec *spec, int conv_arg,
6784 MonoType **conv_arg_type, MarshalAction action)
6786 MonoMethodBuilder *mb = m->mb;
6789 case MARSHAL_ACTION_CONV_IN: {
6790 MonoType *intptr_type;
6792 intptr_type = &mono_defaults.int_class->byval_arg;
6793 conv_arg = mono_mb_add_local (mb, intptr_type);
6794 *conv_arg_type = intptr_type;
6797 mono_mb_emit_exception_marshal_directive (mb,
6798 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6801 mono_mb_emit_ldarg_addr (mb, argnum);
6802 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6803 mono_mb_emit_byte (mb, CEE_ADD);
6804 mono_mb_emit_byte (mb, CEE_LDIND_I);
6805 mono_mb_emit_stloc (mb, conv_arg);
6809 case MARSHAL_ACTION_PUSH:
6810 mono_mb_emit_ldloc (mb, conv_arg);
6813 case MARSHAL_ACTION_CONV_OUT: {
6814 /* no resource release required */
6818 case MARSHAL_ACTION_CONV_RESULT: {
6819 mono_mb_emit_exception_marshal_directive (mb,
6820 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6824 case MARSHAL_ACTION_MANAGED_CONV_IN:
6825 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6828 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6829 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6832 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6833 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6836 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6843 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6844 MonoMarshalSpec *spec,
6845 int conv_arg, MonoType **conv_arg_type,
6846 MarshalAction action)
6848 MonoMethodBuilder *mb = m->mb;
6849 MonoClass *klass = mono_class_from_mono_type (t);
6852 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6853 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6857 case MARSHAL_ACTION_CONV_IN:
6858 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6859 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6861 m->orig_conv_args [argnum] = 0;
6863 if (klass->delegate) {
6865 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6866 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6867 mono_mb_emit_exception_marshal_directive (mb, msg);
6869 mono_mb_emit_byte (mb, CEE_LDNULL);
6870 mono_mb_emit_stloc (mb, conv_arg);
6872 mono_mb_emit_ldarg (mb, argnum);
6873 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6874 mono_mb_emit_stloc (mb, conv_arg);
6876 } else if (klass == mono_defaults.stringbuilder_class) {
6877 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6878 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6880 g_assert (!t->byref);
6881 mono_mb_emit_ldarg (mb, argnum);
6884 mono_mb_emit_icall (mb, conv_to_icall (conv));
6886 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6887 MonoException *exc = mono_get_exception_not_implemented (msg);
6890 mono_raise_exception (exc);
6893 mono_mb_emit_stloc (mb, conv_arg);
6894 } else if (klass->blittable) {
6895 mono_mb_emit_byte (mb, CEE_LDNULL);
6896 mono_mb_emit_stloc (mb, conv_arg);
6898 mono_mb_emit_ldarg (mb, argnum);
6899 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6901 mono_mb_emit_ldarg (mb, argnum);
6902 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6903 mono_mb_emit_stloc (mb, conv_arg);
6905 mono_mb_patch_branch (mb, pos);
6908 mono_mb_emit_byte (mb, CEE_LDNULL);
6909 mono_mb_emit_stloc (mb, conv_arg);
6912 /* we dont need any conversions for out parameters */
6913 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6916 mono_mb_emit_ldarg (mb, argnum);
6917 mono_mb_emit_byte (mb, CEE_LDIND_I);
6920 mono_mb_emit_ldarg (mb, argnum);
6921 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6922 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6925 /* store the address of the source into local variable 0 */
6926 mono_mb_emit_stloc (mb, 0);
6927 mono_mb_emit_ldloc (mb, 0);
6928 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6930 /* allocate space for the native struct and store the address */
6931 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6932 mono_mb_emit_byte (mb, CEE_PREFIX1);
6933 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6934 mono_mb_emit_stloc (mb, conv_arg);
6937 /* Need to store the original buffer so we can free it later */
6938 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6939 mono_mb_emit_ldloc (mb, conv_arg);
6940 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6943 /* set the src_ptr */
6944 mono_mb_emit_ldloc (mb, 0);
6945 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6946 mono_mb_emit_stloc (mb, 0);
6949 mono_mb_emit_ldloc (mb, conv_arg);
6950 mono_mb_emit_stloc (mb, 1);
6952 /* emit valuetype conversion code */
6953 emit_struct_conv (mb, klass, FALSE);
6955 mono_mb_patch_branch (mb, pos);
6959 case MARSHAL_ACTION_CONV_OUT:
6960 if (klass == mono_defaults.stringbuilder_class) {
6962 MonoMarshalNative encoding;
6963 MonoMarshalConv conv;
6965 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6966 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6968 g_assert (!t->byref);
6969 g_assert (encoding != -1);
6971 mono_mb_emit_ldarg (mb, argnum);
6972 mono_mb_emit_ldloc (mb, conv_arg);
6974 mono_mb_emit_icall (mb, conv_to_icall (conv));
6977 mono_mb_emit_ldloc (mb, conv_arg);
6978 mono_mb_emit_icall (mb, mono_marshal_free);
6983 if (klass->delegate) {
6985 mono_mb_emit_ldarg (mb, argnum);
6986 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6987 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6988 mono_mb_emit_ldloc (mb, conv_arg);
6989 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6990 mono_mb_emit_byte (mb, CEE_STIND_REF);
6995 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6996 /* allocate a new object */
6997 mono_mb_emit_ldarg (mb, argnum);
6998 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6999 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7000 mono_mb_emit_byte (mb, CEE_STIND_REF);
7003 /* dst = *argument */
7004 mono_mb_emit_ldarg (mb, argnum);
7007 mono_mb_emit_byte (mb, CEE_LDIND_I);
7009 mono_mb_emit_stloc (mb, 1);
7011 mono_mb_emit_ldloc (mb, 1);
7012 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7014 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7015 mono_mb_emit_ldloc (mb, 1);
7016 mono_mb_emit_icon (mb, sizeof (MonoObject));
7017 mono_mb_emit_byte (mb, CEE_ADD);
7018 mono_mb_emit_stloc (mb, 1);
7020 /* src = tmp_locals [i] */
7021 mono_mb_emit_ldloc (mb, conv_arg);
7022 mono_mb_emit_stloc (mb, 0);
7024 /* emit valuetype conversion code */
7025 emit_struct_conv (mb, klass, TRUE);
7027 /* Free the structure returned by the native code */
7028 emit_struct_free (mb, klass, conv_arg);
7030 if (m->orig_conv_args [argnum]) {
7032 * If the native function changed the pointer, then free
7033 * the original structure plus the new pointer.
7035 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
7036 mono_mb_emit_ldloc (mb, conv_arg);
7037 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
7039 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
7040 g_assert (m->orig_conv_args [argnum]);
7042 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
7045 mono_mb_emit_ldloc (mb, conv_arg);
7046 mono_mb_emit_icall (mb, g_free);
7048 mono_mb_patch_branch (mb, pos2);
7052 /* Free the original structure passed to native code */
7053 emit_struct_free (mb, klass, conv_arg);
7055 mono_mb_patch_branch (mb, pos);
7058 case MARSHAL_ACTION_PUSH:
7060 mono_mb_emit_ldloc_addr (mb, conv_arg);
7062 mono_mb_emit_ldloc (mb, conv_arg);
7065 case MARSHAL_ACTION_CONV_RESULT:
7066 if (klass->delegate) {
7067 g_assert (!t->byref);
7068 mono_mb_emit_stloc (mb, 0);
7069 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7070 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7071 mono_mb_emit_ldloc (mb, 0);
7072 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7073 mono_mb_emit_stloc (mb, 3);
7076 mono_mb_emit_stloc (mb, 0);
7078 /* Make a copy since emit_conv modifies local 0 */
7079 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7080 mono_mb_emit_ldloc (mb, 0);
7081 mono_mb_emit_stloc (mb, loc);
7083 mono_mb_emit_byte (mb, CEE_LDNULL);
7084 mono_mb_emit_stloc (mb, 3);
7086 mono_mb_emit_ldloc (mb, 0);
7087 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7089 /* allocate result object */
7091 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7092 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7093 mono_mb_emit_stloc (mb, 3);
7097 mono_mb_emit_ldloc (mb, 3);
7098 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7099 mono_mb_emit_stloc (mb, 1);
7101 /* emit conversion code */
7102 emit_struct_conv (mb, klass, TRUE);
7104 emit_struct_free (mb, klass, loc);
7106 /* Free the pointer allocated by unmanaged code */
7107 mono_mb_emit_ldloc (mb, loc);
7108 mono_mb_emit_icall (mb, g_free);
7109 mono_mb_patch_branch (mb, pos);
7113 case MARSHAL_ACTION_MANAGED_CONV_IN:
7114 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7116 if (klass->delegate) {
7117 g_assert (!t->byref);
7118 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7119 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7120 mono_mb_emit_ldarg (mb, argnum);
7121 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7122 mono_mb_emit_stloc (mb, conv_arg);
7126 if (klass == mono_defaults.stringbuilder_class) {
7127 MonoMarshalNative encoding;
7129 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7132 g_assert (encoding == MONO_NATIVE_LPSTR);
7134 g_assert (!t->byref);
7135 g_assert (encoding != -1);
7137 mono_mb_emit_ldarg (mb, argnum);
7138 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
7139 mono_mb_emit_stloc (mb, conv_arg);
7143 /* The class can not have an automatic layout */
7144 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7145 mono_mb_emit_auto_layout_exception (mb, klass);
7149 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
7150 mono_mb_emit_byte (mb, CEE_LDNULL);
7151 mono_mb_emit_stloc (mb, conv_arg);
7156 mono_mb_emit_ldarg (mb, argnum);
7160 /* Check for NULL and raise an exception */
7161 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7163 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
7165 mono_mb_patch_branch (mb, pos2);
7166 mono_mb_emit_ldarg (mb, argnum);
7167 mono_mb_emit_byte (mb, CEE_LDIND_I);
7170 mono_mb_emit_stloc (mb, 0);
7172 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7173 mono_mb_emit_stloc (mb, conv_arg);
7175 mono_mb_emit_ldloc (mb, 0);
7176 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7178 /* Create and set dst */
7179 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7180 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7181 mono_mb_emit_stloc (mb, conv_arg);
7182 mono_mb_emit_ldloc (mb, conv_arg);
7183 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7184 mono_mb_emit_stloc (mb, 1);
7186 /* emit valuetype conversion code */
7187 emit_struct_conv (mb, klass, TRUE);
7189 mono_mb_patch_branch (mb, pos);
7192 case MARSHAL_ACTION_MANAGED_CONV_OUT:
7194 /* Check for null */
7195 mono_mb_emit_ldloc (mb, conv_arg);
7196 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7197 mono_mb_emit_ldarg (mb, argnum);
7198 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7199 mono_mb_emit_byte (mb, CEE_STIND_REF);
7200 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7202 mono_mb_patch_branch (mb, pos);
7205 mono_mb_emit_ldloc (mb, conv_arg);
7206 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7207 mono_mb_emit_stloc (mb, 0);
7209 /* Allocate and set dest */
7210 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7211 mono_mb_emit_byte (mb, CEE_CONV_I);
7212 mono_mb_emit_icall (mb, mono_marshal_alloc);
7213 mono_mb_emit_stloc (mb, 1);
7215 /* Update argument pointer */
7216 mono_mb_emit_ldarg (mb, argnum);
7217 mono_mb_emit_ldloc (mb, 1);
7218 mono_mb_emit_byte (mb, CEE_STIND_I);
7220 /* emit valuetype conversion code */
7221 emit_struct_conv (mb, klass, FALSE);
7223 mono_mb_patch_branch (mb, pos2);
7225 /* byval [Out] marshalling */
7227 /* FIXME: Handle null */
7230 mono_mb_emit_ldloc (mb, conv_arg);
7231 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7232 mono_mb_emit_stloc (mb, 0);
7235 mono_mb_emit_ldarg (mb, argnum);
7236 mono_mb_emit_stloc (mb, 1);
7238 /* emit valuetype conversion code */
7239 emit_struct_conv (mb, klass, FALSE);
7243 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7244 if (klass->delegate) {
7245 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7246 mono_mb_emit_stloc (mb, 3);
7250 /* The class can not have an automatic layout */
7251 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7252 mono_mb_emit_auto_layout_exception (mb, klass);
7256 mono_mb_emit_stloc (mb, 0);
7257 /* Check for null */
7258 mono_mb_emit_ldloc (mb, 0);
7259 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7260 mono_mb_emit_byte (mb, CEE_LDNULL);
7261 mono_mb_emit_stloc (mb, 3);
7262 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7264 mono_mb_patch_branch (mb, pos);
7267 mono_mb_emit_ldloc (mb, 0);
7268 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7269 mono_mb_emit_stloc (mb, 0);
7271 /* Allocate and set dest */
7272 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7273 mono_mb_emit_byte (mb, CEE_CONV_I);
7274 mono_mb_emit_icall (mb, mono_marshal_alloc);
7275 mono_mb_emit_byte (mb, CEE_DUP);
7276 mono_mb_emit_stloc (mb, 1);
7277 mono_mb_emit_stloc (mb, 3);
7279 emit_struct_conv (mb, klass, FALSE);
7281 mono_mb_patch_branch (mb, pos2);
7285 g_assert_not_reached ();
7294 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7295 MonoMarshalSpec *spec,
7296 int conv_arg, MonoType **conv_arg_type,
7297 MarshalAction action)
7299 MonoMethodBuilder *mb = m->mb;
7300 MonoClass *klass = t->data.klass;
7301 static MonoMethod* get_object_for_iunknown = NULL;
7302 static MonoMethod* get_iunknown_for_object_internal = NULL;
7303 static MonoMethod* get_com_interface_for_object_internal = NULL;
7304 static MonoMethod* get_idispatch_for_object_internal = NULL;
7305 static MonoMethod* marshal_release = NULL;
7306 static MonoMethod* AddRef = NULL;
7307 if (!get_object_for_iunknown)
7308 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7309 if (!get_iunknown_for_object_internal)
7310 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7311 if (!get_idispatch_for_object_internal)
7312 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7313 if (!get_com_interface_for_object_internal)
7314 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7315 if (!marshal_release)
7316 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7318 /* COM types are initialized lazily */
7319 mono_init_com_types ();
7322 case MARSHAL_ACTION_CONV_IN: {
7323 guint32 pos_null = 0;
7325 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7326 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7328 mono_mb_emit_ptr (mb, NULL);
7329 mono_mb_emit_stloc (mb, conv_arg);
7331 /* we dont need any conversions for out parameters */
7332 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7335 mono_mb_emit_ldarg (mb, argnum);
7337 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7338 /* if null just break, conv arg was already inited to 0 */
7339 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7341 mono_mb_emit_ldarg (mb, argnum);
7343 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7345 if (klass && klass != mono_defaults.object_class) {
7346 mono_mb_emit_ptr (mb, t);
7347 mono_mb_emit_icall (mb, type_from_handle);
7348 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7350 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7351 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7352 else if (spec->native == MONO_NATIVE_IDISPATCH)
7353 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7354 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7355 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7357 g_assert_not_reached ();
7358 mono_mb_emit_stloc (mb, conv_arg);
7359 mono_mb_patch_short_branch (mb, pos_null);
7363 case MARSHAL_ACTION_CONV_OUT: {
7364 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7366 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7367 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7369 mono_mb_emit_ldarg (mb, argnum);
7370 mono_mb_emit_byte (mb, CEE_LDNULL);
7371 mono_mb_emit_byte (mb, CEE_STIND_REF);
7373 mono_mb_emit_ldloc (mb, conv_arg);
7374 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7376 mono_mb_emit_ldloc (mb, conv_arg);
7377 mono_mb_emit_icon (mb, TRUE);
7378 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7379 mono_mb_emit_stloc (mb, ccw_obj);
7380 mono_mb_emit_ldloc (mb, ccw_obj);
7381 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7383 mono_mb_emit_ldarg (mb, argnum);
7384 mono_mb_emit_ldloc (mb, conv_arg);
7385 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7387 if (klass && klass != mono_defaults.object_class)
7388 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7389 mono_mb_emit_byte (mb, CEE_STIND_REF);
7391 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7393 /* is already managed object */
7394 mono_mb_patch_short_branch (mb, pos_ccw);
7395 mono_mb_emit_ldarg (mb, argnum);
7396 mono_mb_emit_ldloc (mb, ccw_obj);
7398 if (klass && klass != mono_defaults.object_class)
7399 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7400 mono_mb_emit_byte (mb, CEE_STIND_REF);
7402 mono_mb_patch_short_branch (mb, pos_end);
7404 /* need to call Release to follow COM rules of ownership */
7405 mono_mb_emit_ldloc (mb, conv_arg);
7406 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7407 mono_mb_emit_byte (mb, CEE_POP);
7410 mono_mb_patch_short_branch (mb, pos_null);
7414 case MARSHAL_ACTION_PUSH:
7416 mono_mb_emit_ldloc_addr (mb, conv_arg);
7418 mono_mb_emit_ldloc (mb, conv_arg);
7421 case MARSHAL_ACTION_CONV_RESULT: {
7422 int ccw_obj, ret_ptr;
7423 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7424 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7425 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7427 /* store return value */
7428 mono_mb_emit_stloc (mb, ret_ptr);
7430 mono_mb_emit_ldloc (mb, ret_ptr);
7431 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7433 mono_mb_emit_ldloc (mb, ret_ptr);
7434 mono_mb_emit_icon (mb, TRUE);
7435 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7436 mono_mb_emit_stloc (mb, ccw_obj);
7437 mono_mb_emit_ldloc (mb, ccw_obj);
7438 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7440 mono_mb_emit_ldloc (mb, ret_ptr);
7441 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7443 if (klass && klass != mono_defaults.object_class)
7444 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7445 mono_mb_emit_stloc (mb, 3);
7447 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7449 /* is already managed object */
7450 mono_mb_patch_short_branch (mb, pos_ccw);
7451 mono_mb_emit_ldloc (mb, ccw_obj);
7453 if (klass && klass != mono_defaults.object_class)
7454 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7455 mono_mb_emit_stloc (mb, 3);
7457 mono_mb_patch_short_branch (mb, pos_end);
7459 /* need to call Release to follow COM rules of ownership */
7460 mono_mb_emit_ldloc (mb, ret_ptr);
7461 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7462 mono_mb_emit_byte (mb, CEE_POP);
7465 mono_mb_patch_short_branch (mb, pos_null);
7469 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7471 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7472 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7474 klass = mono_class_from_mono_type (t);
7475 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7476 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7478 mono_mb_emit_byte (mb, CEE_LDNULL);
7479 mono_mb_emit_stloc (mb, conv_arg);
7480 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7483 mono_mb_emit_ldarg (mb, argnum);
7485 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7486 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7488 mono_mb_emit_ldarg (mb, argnum);
7490 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7491 mono_mb_emit_icon (mb, TRUE);
7492 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7493 mono_mb_emit_stloc (mb, ccw_obj);
7494 mono_mb_emit_ldloc (mb, ccw_obj);
7495 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7498 mono_mb_emit_ldarg (mb, argnum);
7500 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7501 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7503 if (klass && klass != mono_defaults.object_class)
7504 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7505 mono_mb_emit_stloc (mb, conv_arg);
7506 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7508 /* is already managed object */
7509 mono_mb_patch_short_branch (mb, pos_ccw);
7510 mono_mb_emit_ldloc (mb, ccw_obj);
7511 if (klass && klass != mono_defaults.object_class)
7512 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7513 mono_mb_emit_stloc (mb, conv_arg);
7515 mono_mb_patch_short_branch (mb, pos_end);
7517 mono_mb_patch_short_branch (mb, pos_null);
7521 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7522 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7523 guint32 pos_null = 0;
7526 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7528 mono_mb_emit_ldloc (mb, conv_arg);
7529 /* if null just break, conv arg was already inited to 0 */
7530 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7532 /* to store later */
7533 mono_mb_emit_ldarg (mb, argnum);
7534 mono_mb_emit_ldloc (mb, conv_arg);
7535 if (klass && klass != mono_defaults.object_class) {
7536 mono_mb_emit_ptr (mb, t);
7537 mono_mb_emit_icall (mb, type_from_handle);
7538 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7540 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7541 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7542 else if (spec->native == MONO_NATIVE_IDISPATCH)
7543 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7544 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7545 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7547 g_assert_not_reached ();
7548 mono_mb_emit_byte (mb, CEE_STIND_I);
7550 mono_mb_emit_ldarg (mb, argnum);
7551 mono_mb_emit_byte (mb, CEE_LDIND_I);
7552 mono_mb_emit_managed_call (mb, AddRef, NULL);
7553 mono_mb_emit_byte (mb, CEE_POP);
7555 mono_mb_patch_short_branch (mb, pos_null);
7560 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7561 guint32 pos_null = 0;
7563 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7566 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7568 /* store return value */
7569 mono_mb_emit_stloc (mb, ccw_obj);
7571 mono_mb_emit_ldloc (mb, ccw_obj);
7573 /* if null just break, conv arg was already inited to 0 */
7574 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7576 /* to store later */
7577 mono_mb_emit_ldloc (mb, ccw_obj);
7578 if (klass && klass != mono_defaults.object_class) {
7579 mono_mb_emit_ptr (mb, t);
7580 mono_mb_emit_icall (mb, type_from_handle);
7581 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7583 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7584 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7585 else if (spec->native == MONO_NATIVE_IDISPATCH)
7586 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7587 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7588 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7590 g_assert_not_reached ();
7591 mono_mb_emit_stloc (mb, 3);
7592 mono_mb_emit_ldloc (mb, 3);
7594 mono_mb_emit_managed_call (mb, AddRef, NULL);
7595 mono_mb_emit_byte (mb, CEE_POP);
7597 mono_mb_patch_short_branch (mb, pos_null);
7602 g_assert_not_reached ();
7608 #endif /* DISABLE_COM */
7611 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7612 MonoMarshalSpec *spec,
7613 int conv_arg, MonoType **conv_arg_type,
7614 MarshalAction action)
7616 MonoMethodBuilder *mb = m->mb;
7617 static MonoMethod *get_object_for_native_variant = NULL;
7618 static MonoMethod *get_native_variant_for_object = NULL;
7620 mono_init_com_types ();
7622 if (!get_object_for_native_variant)
7623 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7624 g_assert (get_object_for_native_variant);
7626 if (!get_native_variant_for_object)
7627 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7628 g_assert (get_native_variant_for_object);
7631 case MARSHAL_ACTION_CONV_IN: {
7632 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7635 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7637 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7639 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7642 mono_mb_emit_ldarg (mb, argnum);
7644 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7645 mono_mb_emit_ldloc_addr (mb, conv_arg);
7646 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7650 case MARSHAL_ACTION_CONV_OUT: {
7651 static MonoMethod *variant_clear = NULL;
7654 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7655 g_assert (variant_clear);
7658 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7659 mono_mb_emit_ldarg (mb, argnum);
7660 mono_mb_emit_ldloc_addr (mb, conv_arg);
7661 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7662 mono_mb_emit_byte (mb, CEE_STIND_REF);
7665 mono_mb_emit_ldloc_addr (mb, conv_arg);
7666 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7670 case MARSHAL_ACTION_PUSH:
7672 mono_mb_emit_ldloc_addr (mb, conv_arg);
7674 mono_mb_emit_ldloc (mb, conv_arg);
7677 case MARSHAL_ACTION_CONV_RESULT: {
7678 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7679 mono_mb_emit_exception_marshal_directive (mb, msg);
7683 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7684 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7687 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7689 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7691 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7695 mono_mb_emit_ldarg (mb, argnum);
7697 mono_mb_emit_ldarg_addr (mb, argnum);
7698 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7699 mono_mb_emit_stloc (mb, conv_arg);
7703 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7704 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7705 mono_mb_emit_ldloc (mb, conv_arg);
7706 mono_mb_emit_ldarg (mb, argnum);
7707 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7712 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7713 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7714 mono_mb_emit_exception_marshal_directive (mb, msg);
7719 g_assert_not_reached ();
7726 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7727 MonoMarshalSpec *spec,
7728 int conv_arg, MonoType **conv_arg_type,
7729 MarshalAction action)
7731 MonoMethodBuilder *mb = m->mb;
7732 MonoClass *klass = mono_class_from_mono_type (t);
7733 gboolean need_convert, need_free;
7734 MonoMarshalNative encoding;
7736 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7739 case MARSHAL_ACTION_CONV_IN:
7740 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7741 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7743 if (klass->element_class->blittable) {
7744 mono_mb_emit_ldarg (mb, argnum);
7746 mono_mb_emit_byte (mb, CEE_LDIND_I);
7747 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7748 mono_mb_emit_stloc (mb, conv_arg);
7751 guint32 label1, label2, label3;
7752 int index_var, src_var, dest_ptr, esize;
7753 MonoMarshalConv conv;
7754 gboolean is_string = FALSE;
7756 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7758 eklass = klass->element_class;
7760 if (eklass == mono_defaults.string_class) {
7762 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7764 else if (eklass == mono_defaults.stringbuilder_class) {
7766 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7771 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7772 mono_mb_emit_ldarg (mb, argnum);
7774 mono_mb_emit_byte (mb, CEE_LDIND_I);
7775 mono_mb_emit_stloc (mb, src_var);
7778 mono_mb_emit_ldloc (mb, src_var);
7779 mono_mb_emit_stloc (mb, conv_arg);
7780 mono_mb_emit_ldloc (mb, src_var);
7781 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7785 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7786 MonoException *exc = mono_get_exception_not_implemented (msg);
7789 mono_raise_exception (exc);
7794 esize = sizeof (gpointer);
7796 esize = mono_class_native_size (eklass, NULL);
7798 /* allocate space for the native struct and store the address */
7799 mono_mb_emit_icon (mb, esize);
7800 mono_mb_emit_ldloc (mb, src_var);
7801 mono_mb_emit_byte (mb, CEE_LDLEN);
7803 if (eklass == mono_defaults.string_class) {
7804 /* Make the array bigger for the terminating null */
7805 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7806 mono_mb_emit_byte (mb, CEE_ADD);
7808 mono_mb_emit_byte (mb, CEE_MUL);
7809 mono_mb_emit_byte (mb, CEE_PREFIX1);
7810 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7811 mono_mb_emit_stloc (mb, conv_arg);
7813 mono_mb_emit_ldloc (mb, conv_arg);
7814 mono_mb_emit_stloc (mb, dest_ptr);
7816 /* Emit marshalling loop */
7817 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7818 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7819 mono_mb_emit_stloc (mb, index_var);
7820 label2 = mono_mb_get_label (mb);
7821 mono_mb_emit_ldloc (mb, index_var);
7822 mono_mb_emit_ldloc (mb, src_var);
7823 mono_mb_emit_byte (mb, CEE_LDLEN);
7824 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7826 /* Emit marshalling code */
7829 mono_mb_emit_ldloc (mb, dest_ptr);
7830 mono_mb_emit_ldloc (mb, src_var);
7831 mono_mb_emit_ldloc (mb, index_var);
7832 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7833 mono_mb_emit_icall (mb, conv_to_icall (conv));
7834 mono_mb_emit_byte (mb, CEE_STIND_I);
7836 /* set the src_ptr */
7837 mono_mb_emit_ldloc (mb, src_var);
7838 mono_mb_emit_ldloc (mb, index_var);
7839 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7840 mono_mb_emit_stloc (mb, 0);
7843 mono_mb_emit_ldloc (mb, dest_ptr);
7844 mono_mb_emit_stloc (mb, 1);
7846 /* emit valuetype conversion code */
7847 emit_struct_conv (mb, eklass, FALSE);
7850 mono_mb_emit_add_to_local (mb, index_var, 1);
7851 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7853 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7855 mono_mb_patch_branch (mb, label3);
7857 if (eklass == mono_defaults.string_class) {
7858 /* Null terminate */
7859 mono_mb_emit_ldloc (mb, dest_ptr);
7860 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7861 mono_mb_emit_byte (mb, CEE_STIND_REF);
7864 mono_mb_patch_branch (mb, label1);
7869 case MARSHAL_ACTION_CONV_OUT:
7870 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7871 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);
7872 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7875 if (need_convert || need_free) {
7876 /* FIXME: Optimize blittable case */
7878 guint32 label1, label2, label3;
7879 int index_var, src_ptr, loc, esize;
7881 eklass = klass->element_class;
7882 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7883 esize = sizeof (gpointer);
7885 esize = mono_class_native_size (eklass, NULL);
7886 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7887 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7890 mono_mb_emit_ldarg (mb, argnum);
7892 mono_mb_emit_byte (mb, CEE_LDIND_I);
7893 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7895 mono_mb_emit_ldloc (mb, conv_arg);
7896 mono_mb_emit_stloc (mb, src_ptr);
7898 /* Emit marshalling loop */
7899 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7900 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7901 mono_mb_emit_stloc (mb, index_var);
7902 label2 = mono_mb_get_label (mb);
7903 mono_mb_emit_ldloc (mb, index_var);
7904 mono_mb_emit_ldarg (mb, argnum);
7906 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7907 mono_mb_emit_byte (mb, CEE_LDLEN);
7908 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7910 /* Emit marshalling code */
7912 if (eklass == mono_defaults.stringbuilder_class) {
7913 gboolean need_free2;
7914 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7916 g_assert (conv != -1);
7919 mono_mb_emit_ldarg (mb, argnum);
7921 mono_mb_emit_byte (mb, CEE_LDIND_I);
7922 mono_mb_emit_ldloc (mb, index_var);
7923 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7926 mono_mb_emit_ldloc (mb, src_ptr);
7927 mono_mb_emit_byte (mb, CEE_LDIND_I);
7929 mono_mb_emit_icall (mb, conv_to_icall (conv));
7933 mono_mb_emit_ldloc (mb, src_ptr);
7934 mono_mb_emit_byte (mb, CEE_LDIND_I);
7936 mono_mb_emit_icall (mb, mono_marshal_free);
7939 else if (eklass == mono_defaults.string_class) {
7942 mono_mb_emit_ldloc (mb, src_ptr);
7943 mono_mb_emit_byte (mb, CEE_LDIND_I);
7945 mono_mb_emit_icall (mb, mono_marshal_free);
7950 /* set the src_ptr */
7951 mono_mb_emit_ldloc (mb, src_ptr);
7952 mono_mb_emit_stloc (mb, 0);
7955 mono_mb_emit_ldarg (mb, argnum);
7957 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7958 mono_mb_emit_ldloc (mb, index_var);
7959 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7960 mono_mb_emit_stloc (mb, 1);
7962 /* emit valuetype conversion code */
7963 emit_struct_conv (mb, eklass, TRUE);
7967 mono_mb_emit_ldloc (mb, src_ptr);
7968 mono_mb_emit_stloc (mb, loc);
7969 mono_mb_emit_ldloc (mb, loc);
7971 emit_struct_free (mb, eklass, loc);
7975 mono_mb_emit_add_to_local (mb, index_var, 1);
7976 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7978 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7980 mono_mb_patch_branch (mb, label1);
7981 mono_mb_patch_branch (mb, label3);
7985 case MARSHAL_ACTION_PUSH:
7987 mono_mb_emit_ldloc_addr (mb, conv_arg);
7989 mono_mb_emit_ldloc (mb, conv_arg);
7992 case MARSHAL_ACTION_CONV_RESULT:
7993 /* fixme: we need conversions here */
7994 mono_mb_emit_stloc (mb, 3);
7997 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7999 guint32 label1, label2, label3;
8000 int index_var, src_ptr, loc, esize, param_num, num_elem;
8001 MonoMarshalConv conv;
8002 gboolean is_string = FALSE;
8004 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8005 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8008 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
8009 mono_mb_emit_exception_marshal_directive (mb, msg);
8013 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
8014 mono_mb_emit_exception_marshal_directive (mb, msg);
8017 if (spec->native != MONO_NATIVE_LPARRAY) {
8018 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
8019 mono_mb_emit_exception_marshal_directive (mb, msg);
8023 /* FIXME: t is from the method which is wrapped, not the delegate type */
8024 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
8026 param_num = spec->data.array_data.param_num;
8027 num_elem = spec->data.array_data.num_elem;
8028 if (spec->data.array_data.elem_mult == 0)
8029 /* param_num is not specified */
8032 if (param_num == -1) {
8033 if (num_elem <= 0) {
8034 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
8035 mono_mb_emit_exception_marshal_directive (mb, msg);
8040 /* FIXME: Optimize blittable case */
8042 eklass = klass->element_class;
8043 if (eklass == mono_defaults.string_class) {
8045 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
8047 else if (eklass == mono_defaults.stringbuilder_class) {
8049 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
8054 mono_marshal_load_type_info (eklass);
8057 esize = sizeof (gpointer);
8059 esize = mono_class_native_size (eklass, NULL);
8060 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8061 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8063 mono_mb_emit_byte (mb, CEE_LDNULL);
8064 mono_mb_emit_stloc (mb, conv_arg);
8066 /* Check param index */
8067 if (param_num != -1) {
8068 if (param_num >= m->sig->param_count) {
8069 char *msg = g_strdup ("Array size control parameter index is out of range.");
8070 mono_mb_emit_exception_marshal_directive (mb, msg);
8073 switch (m->sig->params [param_num]->type) {
8086 char *msg = g_strdup ("Array size control parameter must be an integral type.");
8087 mono_mb_emit_exception_marshal_directive (mb, msg);
8094 mono_mb_emit_ldarg (mb, argnum);
8095 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8097 mono_mb_emit_ldarg (mb, argnum);
8098 mono_mb_emit_stloc (mb, src_ptr);
8100 /* Create managed array */
8102 * The LPArray marshalling spec says that sometimes param_num starts
8103 * from 1, sometimes it starts from 0. But MS seems to allways start
8107 if (param_num == -1)
8108 mono_mb_emit_icon (mb, num_elem);
8110 /* FIXME: Add the two together */
8111 mono_mb_emit_ldarg (mb, param_num);
8113 mono_mb_emit_icon (mb, num_elem);
8114 mono_mb_emit_byte (mb, CEE_ADD);
8118 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
8119 mono_mb_emit_stloc (mb, conv_arg);
8121 if (eklass->blittable) {
8122 mono_mb_emit_ldloc (mb, conv_arg);
8123 mono_mb_emit_byte (mb, CEE_CONV_I);
8124 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8125 mono_mb_emit_byte (mb, CEE_ADD);
8126 mono_mb_emit_ldarg (mb, argnum);
8127 mono_mb_emit_ldloc (mb, conv_arg);
8128 mono_mb_emit_byte (mb, CEE_LDLEN);
8129 mono_mb_emit_icon (mb, esize);
8130 mono_mb_emit_byte (mb, CEE_MUL);
8131 mono_mb_emit_byte (mb, CEE_PREFIX1);
8132 mono_mb_emit_byte (mb, CEE_CPBLK);
8136 /* Emit marshalling loop */
8137 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8138 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8139 mono_mb_emit_stloc (mb, index_var);
8140 label2 = mono_mb_get_label (mb);
8141 mono_mb_emit_ldloc (mb, index_var);
8142 mono_mb_emit_ldloc (mb, conv_arg);
8143 mono_mb_emit_byte (mb, CEE_LDLEN);
8144 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8146 /* Emit marshalling code */
8148 g_assert (conv != -1);
8150 mono_mb_emit_ldloc (mb, conv_arg);
8151 mono_mb_emit_ldloc (mb, index_var);
8153 mono_mb_emit_ldloc (mb, src_ptr);
8154 mono_mb_emit_byte (mb, CEE_LDIND_I);
8156 mono_mb_emit_icall (mb, conv_to_icall (conv));
8157 mono_mb_emit_byte (mb, CEE_STELEM_REF);
8160 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8161 mono_mb_emit_exception_marshal_directive (mb, msg);
8165 mono_mb_emit_add_to_local (mb, index_var, 1);
8166 mono_mb_emit_add_to_local (mb, src_ptr, esize);
8168 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8170 mono_mb_patch_branch (mb, label1);
8171 mono_mb_patch_branch (mb, label3);
8175 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
8177 guint32 label1, label2, label3;
8178 int index_var, dest_ptr, loc, esize, param_num, num_elem;
8179 MonoMarshalConv conv;
8180 gboolean is_string = FALSE;
8183 /* Already handled in CONV_IN */
8186 /* These are already checked in CONV_IN */
8187 g_assert (!t->byref);
8188 g_assert (spec->native == MONO_NATIVE_LPARRAY);
8189 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
8191 param_num = spec->data.array_data.param_num;
8192 num_elem = spec->data.array_data.num_elem;
8194 if (spec->data.array_data.elem_mult == 0)
8195 /* param_num is not specified */
8198 if (param_num == -1) {
8199 if (num_elem <= 0) {
8200 g_assert_not_reached ();
8204 /* FIXME: Optimize blittable case */
8206 eklass = klass->element_class;
8207 if (eklass == mono_defaults.string_class) {
8209 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8211 else if (eklass == mono_defaults.stringbuilder_class) {
8213 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
8218 mono_marshal_load_type_info (eklass);
8221 esize = sizeof (gpointer);
8223 esize = mono_class_native_size (eklass, NULL);
8225 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8226 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8229 mono_mb_emit_ldloc (mb, conv_arg);
8230 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8232 mono_mb_emit_ldarg (mb, argnum);
8233 mono_mb_emit_stloc (mb, dest_ptr);
8235 if (eklass->blittable) {
8237 mono_mb_emit_ldarg (mb, argnum);
8239 mono_mb_emit_ldloc (mb, conv_arg);
8240 mono_mb_emit_byte (mb, CEE_CONV_I);
8241 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8242 mono_mb_emit_byte (mb, CEE_ADD);
8244 mono_mb_emit_ldloc (mb, conv_arg);
8245 mono_mb_emit_byte (mb, CEE_LDLEN);
8246 mono_mb_emit_icon (mb, esize);
8247 mono_mb_emit_byte (mb, CEE_MUL);
8248 mono_mb_emit_byte (mb, CEE_PREFIX1);
8249 mono_mb_emit_byte (mb, CEE_CPBLK);
8253 /* Emit marshalling loop */
8254 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8255 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8256 mono_mb_emit_stloc (mb, index_var);
8257 label2 = mono_mb_get_label (mb);
8258 mono_mb_emit_ldloc (mb, index_var);
8259 mono_mb_emit_ldloc (mb, conv_arg);
8260 mono_mb_emit_byte (mb, CEE_LDLEN);
8261 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8263 /* Emit marshalling code */
8265 g_assert (conv != -1);
8268 mono_mb_emit_ldloc (mb, dest_ptr);
8271 mono_mb_emit_ldloc (mb, conv_arg);
8272 mono_mb_emit_ldloc (mb, index_var);
8274 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8276 mono_mb_emit_icall (mb, conv_to_icall (conv));
8277 mono_mb_emit_byte (mb, CEE_STIND_I);
8280 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8281 mono_mb_emit_exception_marshal_directive (mb, msg);
8285 mono_mb_emit_add_to_local (mb, index_var, 1);
8286 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8288 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8290 mono_mb_patch_branch (mb, label1);
8291 mono_mb_patch_branch (mb, label3);
8295 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8297 guint32 label1, label2, label3;
8298 int index_var, src, dest, esize;
8299 MonoMarshalConv conv = -1;
8300 gboolean is_string = FALSE;
8302 g_assert (!t->byref);
8304 eklass = klass->element_class;
8306 mono_marshal_load_type_info (eklass);
8308 if (eklass == mono_defaults.string_class) {
8310 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8313 g_assert_not_reached ();
8317 esize = sizeof (gpointer);
8319 esize = mono_class_native_size (eklass, NULL);
8321 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8322 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8324 mono_mb_emit_stloc (mb, src);
8325 mono_mb_emit_ldloc (mb, src);
8326 mono_mb_emit_stloc (mb, 3);
8328 /* Check for null */
8329 mono_mb_emit_ldloc (mb, src);
8330 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8332 /* Allocate native array */
8333 mono_mb_emit_icon (mb, esize);
8334 mono_mb_emit_ldloc (mb, src);
8335 mono_mb_emit_byte (mb, CEE_LDLEN);
8337 if (eklass == mono_defaults.string_class) {
8338 /* Make the array bigger for the terminating null */
8339 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8340 mono_mb_emit_byte (mb, CEE_ADD);
8342 mono_mb_emit_byte (mb, CEE_MUL);
8343 mono_mb_emit_icall (mb, mono_marshal_alloc);
8344 mono_mb_emit_stloc (mb, dest);
8345 mono_mb_emit_ldloc (mb, dest);
8346 mono_mb_emit_stloc (mb, 3);
8348 /* Emit marshalling loop */
8349 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8350 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8351 mono_mb_emit_stloc (mb, index_var);
8352 label2 = mono_mb_get_label (mb);
8353 mono_mb_emit_ldloc (mb, index_var);
8354 mono_mb_emit_ldloc (mb, src);
8355 mono_mb_emit_byte (mb, CEE_LDLEN);
8356 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8358 /* Emit marshalling code */
8360 g_assert (conv != -1);
8363 mono_mb_emit_ldloc (mb, dest);
8366 mono_mb_emit_ldloc (mb, src);
8367 mono_mb_emit_ldloc (mb, index_var);
8369 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8371 mono_mb_emit_icall (mb, conv_to_icall (conv));
8372 mono_mb_emit_byte (mb, CEE_STIND_I);
8375 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8376 mono_mb_emit_exception_marshal_directive (mb, msg);
8380 mono_mb_emit_add_to_local (mb, index_var, 1);
8381 mono_mb_emit_add_to_local (mb, dest, esize);
8383 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8385 mono_mb_patch_branch (mb, label3);
8386 mono_mb_patch_branch (mb, label1);
8390 g_assert_not_reached ();
8397 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8398 MonoMarshalSpec *spec,
8399 int conv_arg, MonoType **conv_arg_type,
8400 MarshalAction action)
8402 MonoMethodBuilder *mb = m->mb;
8405 case MARSHAL_ACTION_CONV_IN: {
8406 MonoType *local_type;
8407 int variant_bool = 0;
8411 local_type = &mono_defaults.int32_class->byval_arg;
8413 switch (spec->native) {
8414 case MONO_NATIVE_I1:
8415 case MONO_NATIVE_U1:
8416 local_type = &mono_defaults.byte_class->byval_arg;
8418 case MONO_NATIVE_VARIANTBOOL:
8419 local_type = &mono_defaults.int16_class->byval_arg;
8423 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8424 local_type = &mono_defaults.int32_class->byval_arg;
8428 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8429 conv_arg = mono_mb_add_local (mb, local_type);
8430 mono_mb_emit_ldarg (mb, argnum);
8431 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8433 mono_mb_emit_byte (mb, CEE_NEG);
8434 mono_mb_emit_stloc (mb, conv_arg);
8438 case MARSHAL_ACTION_CONV_OUT:
8441 mono_mb_emit_ldarg (mb, argnum);
8442 mono_mb_emit_ldloc (mb, conv_arg);
8443 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8444 mono_mb_emit_byte (mb, CEE_NEG);
8445 mono_mb_emit_byte (mb, CEE_STIND_I1);
8448 case MARSHAL_ACTION_PUSH:
8450 mono_mb_emit_ldloc_addr (mb, conv_arg);
8452 mono_mb_emit_ldarg (mb, argnum);
8455 case MARSHAL_ACTION_CONV_RESULT:
8456 /* maybe we need to make sure that it fits within 8 bits */
8457 mono_mb_emit_stloc (mb, 3);
8461 g_assert_not_reached ();
8468 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8469 MonoMarshalSpec *spec, int conv_arg,
8470 MonoType **conv_arg_type, MarshalAction action)
8472 MonoMethodBuilder *mb = m->mb;
8475 case MARSHAL_ACTION_CONV_IN:
8476 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
8477 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8478 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8482 case MARSHAL_ACTION_PUSH:
8483 mono_mb_emit_ldarg (mb, argnum);
8486 case MARSHAL_ACTION_CONV_RESULT:
8487 /* no conversions necessary */
8488 mono_mb_emit_stloc (mb, 3);
8499 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8500 MonoMarshalSpec *spec, int conv_arg,
8501 MonoType **conv_arg_type, MarshalAction action)
8503 MonoMethodBuilder *mb = m->mb;
8506 case MARSHAL_ACTION_PUSH:
8507 /* fixme: dont know how to marshal that. We cant simply
8508 * convert it to a one byte UTF8 character, because an
8509 * unicode character may need more that one byte in UTF8 */
8510 mono_mb_emit_ldarg (mb, argnum);
8513 case MARSHAL_ACTION_CONV_RESULT:
8514 /* fixme: we need conversions here */
8515 mono_mb_emit_stloc (mb, 3);
8526 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8527 MonoMarshalSpec *spec, int conv_arg,
8528 MonoType **conv_arg_type, MarshalAction action)
8530 MonoMethodBuilder *mb = m->mb;
8533 case MARSHAL_ACTION_PUSH:
8534 mono_mb_emit_ldarg (mb, argnum);
8537 case MARSHAL_ACTION_CONV_RESULT:
8538 /* no conversions necessary */
8539 mono_mb_emit_stloc (mb, 3);
8550 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8551 MonoMarshalSpec *spec, int conv_arg,
8552 MonoType **conv_arg_type, MarshalAction action)
8554 /* Ensure that we have marshalling info for this param */
8555 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8557 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8558 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8560 if (spec && spec->native == MONO_NATIVE_ASANY)
8561 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8564 case MONO_TYPE_VALUETYPE:
8565 if (t->data.klass == mono_defaults.handleref_class)
8566 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8568 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8569 case MONO_TYPE_STRING:
8570 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8571 case MONO_TYPE_CLASS:
8572 case MONO_TYPE_OBJECT:
8573 if (spec && spec->native == MONO_NATIVE_STRUCT)
8574 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8577 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8578 spec->native == MONO_NATIVE_IDISPATCH ||
8579 spec->native == MONO_NATIVE_INTERFACE))
8580 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8583 if (mono_defaults.safehandle_class != NULL &&
8584 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8585 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8587 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8588 case MONO_TYPE_ARRAY:
8589 case MONO_TYPE_SZARRAY:
8590 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8591 case MONO_TYPE_BOOLEAN:
8592 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8594 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8595 case MONO_TYPE_CHAR:
8596 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8609 case MONO_TYPE_FNPTR:
8610 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8611 case MONO_TYPE_GENERICINST:
8612 if (mono_type_generic_inst_is_valuetype (t))
8613 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8615 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8622 * mono_marshal_emit_native_wrapper:
8623 * @image: the image to use for looking up custom marshallers
8624 * @sig: The signature of the native function
8625 * @piinfo: Marshalling information
8626 * @mspecs: Marshalling information
8627 * @aot: whenever the created method will be compiled by the AOT compiler
8628 * @method: if non-NULL, the pinvoke method to call
8629 * @check_exceptions: Whenever to check for pending exceptions after the native call
8631 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8634 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8636 EmitMarshalContext m;
8637 MonoMethodSignature *csig;
8639 int i, argnum, *tmp_locals;
8641 static MonoMethodSignature *get_last_error_sig = NULL;
8646 /* we copy the signature, so that we can set pinvoke to 0 */
8647 csig = signature_dup (mb->method->klass->image, sig);
8652 /* we allocate local for use with emit_struct_conv() */
8653 /* allocate local 0 (pointer) src_ptr */
8654 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8655 /* allocate local 1 (pointer) dst_ptr */
8656 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8657 /* allocate local 2 (boolean) delete_old */
8658 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8660 /* delete_old = FALSE */
8661 mono_mb_emit_icon (mb, 0);
8662 mono_mb_emit_stloc (mb, 2);
8664 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8665 /* allocate local 3 to store the return value */
8666 mono_mb_add_local (mb, sig->ret);
8669 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8670 /* Return type custom marshaling */
8672 * Since we can't determine the return type of the unmanaged function,
8673 * we assume it returns a pointer, and pass that pointer to
8674 * MarshalNativeToManaged.
8676 csig->ret = &mono_defaults.int_class->byval_arg;
8679 /* we first do all conversions */
8680 tmp_locals = alloca (sizeof (int) * sig->param_count);
8681 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8683 for (i = 0; i < sig->param_count; i ++) {
8684 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8687 /* push all arguments */
8690 mono_mb_emit_byte (mb, CEE_LDARG_0);
8692 for (i = 0; i < sig->param_count; i++) {
8693 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8696 /* call the native method */
8697 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8699 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8701 g_assert_not_reached ();
8706 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8707 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8708 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8709 mono_mb_emit_calli (mb, csig);
8711 mono_mb_emit_native_call (mb, csig, func);
8715 /* Set LastError if needed */
8716 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8717 if (!get_last_error_sig) {
8718 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8719 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8720 get_last_error_sig->pinvoke = 1;
8723 #ifdef PLATFORM_WIN32
8725 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8726 * clobber its value.
8728 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8729 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8731 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8735 /* convert the result */
8736 if (!sig->ret->byref) {
8737 MonoMarshalSpec *spec = mspecs [0];
8738 type = sig->ret->type;
8740 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8741 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8746 case MONO_TYPE_VOID:
8748 case MONO_TYPE_VALUETYPE:
8749 klass = sig->ret->data.klass;
8750 if (klass->enumtype) {
8751 type = sig->ret->data.klass->enum_basetype->type;
8754 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8768 case MONO_TYPE_FNPTR:
8769 case MONO_TYPE_STRING:
8770 case MONO_TYPE_CLASS:
8771 case MONO_TYPE_OBJECT:
8772 case MONO_TYPE_BOOLEAN:
8773 case MONO_TYPE_ARRAY:
8774 case MONO_TYPE_SZARRAY:
8775 case MONO_TYPE_CHAR:
8777 case MONO_TYPE_GENERICINST:
8778 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8780 case MONO_TYPE_TYPEDBYREF:
8782 g_warning ("return type 0x%02x unknown", sig->ret->type);
8783 g_assert_not_reached ();
8787 mono_mb_emit_stloc (mb, 3);
8791 * Need to call this after converting the result since MONO_VTADDR needs
8792 * to be adjacent to the call instruction.
8794 if (check_exceptions)
8795 emit_thread_interrupt_checkpoint (mb);
8797 /* we need to convert byref arguments back and free string arrays */
8798 for (i = 0; i < sig->param_count; i++) {
8799 MonoType *t = sig->params [i];
8800 MonoMarshalSpec *spec = mspecs [i + 1];
8802 argnum = i + sig->hasthis;
8804 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8805 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8810 case MONO_TYPE_STRING:
8811 case MONO_TYPE_VALUETYPE:
8812 case MONO_TYPE_CLASS:
8813 case MONO_TYPE_OBJECT:
8814 case MONO_TYPE_SZARRAY:
8815 case MONO_TYPE_BOOLEAN:
8816 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8821 if (!MONO_TYPE_IS_VOID(sig->ret))
8822 mono_mb_emit_ldloc (mb, 3);
8824 mono_mb_emit_byte (mb, CEE_RET);
8828 * mono_marshal_get_native_wrapper:
8829 * @method: The MonoMethod to wrap.
8830 * @check_exceptions: Whenever to check for pending exceptions
8832 * generates IL code for the pinvoke wrapper (the generated method
8833 * calls the unmanaged code in piinfo->addr)
8836 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8838 MonoMethodSignature *sig, *csig;
8839 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8840 MonoMethodBuilder *mb;
8841 MonoMarshalSpec **mspecs;
8844 gboolean pinvoke = FALSE;
8847 const char *exc_class = "MissingMethodException";
8848 const char *exc_arg = NULL;
8850 g_assert (method != NULL);
8851 g_assert (mono_method_signature (method)->pinvoke);
8853 cache = method->klass->image->native_wrapper_cache;
8854 if ((res = mono_marshal_find_in_cache (cache, method)))
8857 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8859 return cominterop_get_native_wrapper (method);
8861 g_assert_not_reached ();
8865 sig = mono_method_signature (method);
8867 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8868 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8871 if (!piinfo->addr) {
8873 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8874 exc_arg = "Method contains unsupported native code";
8876 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8878 piinfo->addr = mono_lookup_internal_call (method);
8881 /* hack - redirect certain string constructors to CreateString */
8882 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8883 g_assert (!pinvoke);
8884 g_assert (method->string_ctor);
8885 g_assert (sig->hasthis);
8887 /* CreateString returns a value */
8888 csig = signature_dup (method->klass->image, sig);
8889 csig->ret = &mono_defaults.string_class->byval_arg;
8893 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8894 if (!strcmp ("CreateString", res->name) &&
8895 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8897 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8898 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8900 /* create a wrapper to preserve .ctor in stack trace */
8901 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8903 mono_mb_emit_byte (mb, CEE_LDARG_0);
8904 for (i = 1; i <= csig->param_count; i++)
8905 mono_mb_emit_ldarg (mb, i);
8906 mono_mb_emit_managed_call (mb, res, NULL);
8907 mono_mb_emit_byte (mb, CEE_RET);
8909 /* use native_wrapper_cache because internal calls are looked up there */
8910 res = mono_mb_create_and_cache (cache, method,
8911 mb, csig, csig->param_count + 1);
8919 /* exception will be thrown */
8920 piinfo->addr = NULL;
8921 g_warning ("cannot find CreateString for .ctor");
8924 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8926 mb->method->save_lmf = 1;
8929 * In AOT mode and embedding scenarios, it is possible that the icall is not
8930 * registered in the runtime doing the AOT compilation.
8932 if (!piinfo->addr && !aot) {
8933 mono_mb_emit_exception (mb, exc_class, exc_arg);
8934 csig = signature_dup (method->klass->image, sig);
8936 res = mono_mb_create_and_cache (cache, method,
8937 mb, csig, csig->param_count + 16);
8942 /* internal calls: we simply push all arguments and call the method (no conversions) */
8943 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8945 /* hack - string constructors returns a value */
8946 if (method->string_ctor) {
8947 csig = signature_dup (method->klass->image, sig);
8948 csig->ret = &mono_defaults.string_class->byval_arg;
8953 mono_mb_emit_byte (mb, CEE_LDARG_0);
8955 for (i = 0; i < sig->param_count; i++)
8956 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8959 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8960 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8961 mono_mb_emit_calli (mb, csig);
8963 g_assert (piinfo->addr);
8964 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8966 if (check_exceptions)
8967 emit_thread_interrupt_checkpoint (mb);
8968 mono_mb_emit_byte (mb, CEE_RET);
8970 csig = signature_dup (method->klass->image, csig);
8972 res = mono_mb_create_and_cache (cache, method,
8973 mb, csig, csig->param_count + 16);
8980 g_assert (piinfo->addr);
8982 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8983 mono_method_get_marshal_info (method, mspecs);
8985 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8987 csig = signature_dup (method->klass->image, sig);
8989 res = mono_mb_create_and_cache (cache, method,
8990 mb, csig, csig->param_count + 16);
8993 for (i = sig->param_count; i >= 0; i--)
8995 mono_metadata_free_marshal_spec (mspecs [i]);
8998 /* 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)); */
9004 * mono_marshal_get_native_func_wrapper:
9005 * @image: The image to use for memory allocation and for looking up custom marshallers.
9006 * @sig: The signature of the function
9007 * @func: The native function to wrap
9009 * Returns a wrapper method around native functions, similar to the pinvoke
9013 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
9014 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
9016 MonoMethodSignature *csig;
9018 MonoMethodBuilder *mb;
9023 cache = image->native_wrapper_cache;
9024 if ((res = mono_marshal_find_in_cache (cache, func)))
9027 name = g_strdup_printf ("wrapper_native_%p", func);
9028 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
9029 mb->method->save_lmf = 1;
9031 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
9033 csig = signature_dup (image, sig);
9035 res = mono_mb_create_and_cache (cache, func,
9036 mb, csig, csig->param_count + 16);
9039 /* 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)); */
9044 /* FIXME: moving GC */
9046 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
9048 MonoMethodSignature *sig, *csig;
9054 /* allocate local 0 (pointer) src_ptr */
9055 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9056 /* allocate local 1 (pointer) dst_ptr */
9057 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9058 /* allocate local 2 (boolean) delete_old */
9059 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9061 if (!MONO_TYPE_IS_VOID(sig->ret)) {
9062 /* allocate local 3 to store the return value */
9063 mono_mb_add_local (mb, sig->ret);
9066 mono_mb_emit_icon (mb, 0);
9067 mono_mb_emit_stloc (mb, 2);
9069 /* we first do all conversions */
9070 tmp_locals = alloca (sizeof (int) * sig->param_count);
9071 for (i = 0; i < sig->param_count; i ++) {
9072 MonoType *t = sig->params [i];
9075 case MONO_TYPE_OBJECT:
9076 case MONO_TYPE_CLASS:
9077 case MONO_TYPE_VALUETYPE:
9078 case MONO_TYPE_ARRAY:
9079 case MONO_TYPE_SZARRAY:
9080 case MONO_TYPE_STRING:
9081 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
9090 emit_thread_interrupt_checkpoint (mb);
9092 /* fixme: howto handle this ? */
9095 /* FIXME: need a solution for the moving GC here */
9096 mono_mb_emit_ptr (mb, this);
9099 g_assert_not_reached ();
9103 for (i = 0; i < sig->param_count; i++) {
9104 MonoType *t = sig->params [i];
9106 if (tmp_locals [i]) {
9108 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
9110 mono_mb_emit_ldloc (mb, tmp_locals [i]);
9113 mono_mb_emit_ldarg (mb, i);
9116 mono_mb_emit_managed_call (mb, method, NULL);
9118 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
9119 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9122 if (!sig->ret->byref) {
9123 switch (sig->ret->type) {
9124 case MONO_TYPE_VOID:
9126 case MONO_TYPE_BOOLEAN:
9129 case MONO_TYPE_CHAR:
9141 case MONO_TYPE_OBJECT:
9142 mono_mb_emit_stloc (mb, 3);
9144 case MONO_TYPE_STRING:
9145 csig->ret = &mono_defaults.int_class->byval_arg;
9146 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9148 case MONO_TYPE_VALUETYPE:
9149 case MONO_TYPE_CLASS:
9150 case MONO_TYPE_SZARRAY:
9151 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9154 g_warning ("return type 0x%02x unknown", sig->ret->type);
9155 g_assert_not_reached ();
9158 mono_mb_emit_stloc (mb, 3);
9161 /* Convert byref arguments back */
9162 for (i = 0; i < sig->param_count; i ++) {
9163 MonoType *t = sig->params [i];
9164 MonoMarshalSpec *spec = mspecs [i + 1];
9166 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
9167 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9169 else if (t->byref) {
9171 case MONO_TYPE_CLASS:
9172 case MONO_TYPE_VALUETYPE:
9173 case MONO_TYPE_OBJECT:
9174 case MONO_TYPE_STRING:
9175 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9179 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
9180 /* The [Out] information is encoded in the delegate signature */
9182 case MONO_TYPE_SZARRAY:
9183 case MONO_TYPE_CLASS:
9184 case MONO_TYPE_VALUETYPE:
9185 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9188 g_assert_not_reached ();
9193 if (m->retobj_var) {
9194 mono_mb_emit_ldloc (mb, m->retobj_var);
9195 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9196 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
9199 if (!MONO_TYPE_IS_VOID(sig->ret))
9200 mono_mb_emit_ldloc (mb, 3);
9201 mono_mb_emit_byte (mb, CEE_RET);
9207 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
9209 MonoMethodSignature *sig;
9212 #ifdef PLATFORM_WIN32
9214 * Under windows, delegates passed to native code must use the STDCALL
9215 * calling convention.
9217 csig->call_convention = MONO_CALL_STDCALL;
9220 sig = mono_method_signature (method);
9222 /* Change default calling convention if needed */
9223 /* Why is this a modopt ? */
9224 if (sig->ret && sig->ret->num_mods) {
9225 for (i = 0; i < sig->ret->num_mods; ++i) {
9226 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
9227 g_assert (cmod_class);
9228 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
9229 if (!strcmp (cmod_class->name, "CallConvCdecl"))
9230 csig->call_convention = MONO_CALL_C;
9231 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
9232 csig->call_convention = MONO_CALL_STDCALL;
9233 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
9234 csig->call_convention = MONO_CALL_FASTCALL;
9235 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
9236 csig->call_convention = MONO_CALL_THISCALL;
9243 * generates IL code to call managed methods from unmanaged code
9246 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
9248 static MonoClass *UnmanagedFunctionPointerAttribute;
9249 MonoMethodSignature *sig, *csig, *invoke_sig;
9250 MonoMethodBuilder *mb;
9251 MonoMethod *res, *invoke;
9252 MonoMarshalSpec **mspecs;
9253 MonoMethodPInvoke piinfo;
9256 EmitMarshalContext m;
9258 g_assert (method != NULL);
9259 g_assert (!mono_method_signature (method)->pinvoke);
9262 * FIXME: Should cache the method+delegate type pair, since the same method
9263 * could be called with different delegates, thus different marshalling
9266 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
9267 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
9270 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
9271 invoke_sig = mono_method_signature (invoke);
9273 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9274 mono_method_get_marshal_info (invoke, mspecs);
9276 sig = mono_method_signature (method);
9278 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9281 /* we copy the signature, so that we can modify it */
9283 /* Need to free this later */
9284 csig = mono_metadata_signature_dup (sig);
9286 csig = signature_dup (method->klass->image, sig);
9295 m.image = method->klass->image;
9297 mono_marshal_set_callconv_from_modopt (invoke, csig);
9299 /* Handle the UnmanagedFunctionPointerAttribute */
9300 if (!UnmanagedFunctionPointerAttribute)
9301 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9303 /* The attribute is only available in Net 2.0 */
9304 if (UnmanagedFunctionPointerAttribute) {
9305 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9306 MonoCustomAttrInfo *cinfo;
9309 * The pinvoke attributes are stored in a real custom attribute so we have to
9312 cinfo = mono_custom_attrs_from_class (delegate_klass);
9314 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9316 memset (&piinfo, 0, sizeof (piinfo));
9318 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9320 csig->call_convention = attr->call_conv - 1;
9323 mono_custom_attrs_free (cinfo);
9327 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9330 res = mono_mb_create_and_cache (cache, method,
9331 mb, csig, sig->param_count + 16);
9334 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9338 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9340 mono_metadata_free_marshal_spec (mspecs [i]);
9343 /* 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)); */
9349 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9352 MonoMethodSignature *sig;
9353 MonoMethodBuilder *mb;
9358 method = mono_get_method (image, token, NULL);
9361 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9362 MonoMethodSignature *csig;
9363 MonoMarshalSpec **mspecs;
9364 EmitMarshalContext m;
9366 sig = mono_method_signature (method);
9367 g_assert (!sig->hasthis);
9369 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9370 mono_method_get_marshal_info (method, mspecs);
9372 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9373 csig = signature_dup (image, sig);
9384 mono_marshal_set_callconv_from_modopt (method, csig);
9386 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9388 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
9391 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9394 for (i = sig->param_count; i >= 0; i--)
9396 mono_metadata_free_marshal_spec (mspecs [i]);
9399 return mono_compile_method (method);
9402 sig = mono_method_signature (method);
9403 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9405 param_count = sig->param_count + sig->hasthis;
9406 for (i = 0; i < param_count; i++)
9407 mono_mb_emit_ldarg (mb, i);
9409 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9410 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9412 mono_mb_emit_op (mb, CEE_CALL, method);
9413 mono_mb_emit_byte (mb, CEE_RET);
9416 method = mono_mb_create_method (mb, sig, param_count);
9419 return mono_compile_method (method);
9422 static MonoReflectionType *
9423 type_from_handle (MonoType *handle)
9425 MonoDomain *domain = mono_domain_get ();
9426 MonoClass *klass = mono_class_from_mono_type (handle);
9428 MONO_ARCH_SAVE_REGS;
9430 mono_class_init (klass);
9431 return mono_type_get_object (domain, handle);
9435 * mono_marshal_get_isinst:
9436 * @klass: the type of the field
9438 * This method generates a function which can be used to check if an object is
9439 * an instance of the given type, icluding the case where the object is a proxy.
9440 * The generated function has the following signature:
9441 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9444 mono_marshal_get_isinst (MonoClass *klass)
9446 static MonoMethodSignature *isint_sig = NULL;
9449 int pos_was_ok, pos_failed, pos_end, pos_end2;
9451 MonoMethodBuilder *mb;
9453 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9454 if ((res = mono_marshal_find_in_cache (cache, klass)))
9458 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9459 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9460 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9461 isint_sig->pinvoke = 0;
9464 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9465 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9468 mb->method->save_lmf = 1;
9470 /* check if the object is a proxy that needs special cast */
9471 mono_mb_emit_ldarg (mb, 0);
9472 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9473 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9475 /* The result of MONO_ISINST can be:
9476 0) the type check succeeded
9477 1) the type check did not succeed
9478 2) a CanCastTo call is needed */
9480 mono_mb_emit_byte (mb, CEE_DUP);
9481 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9483 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9484 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9486 /* get the real proxy from the transparent proxy*/
9488 mono_mb_emit_ldarg (mb, 0);
9489 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9490 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9494 mono_mb_patch_branch (mb, pos_failed);
9495 mono_mb_emit_byte (mb, CEE_LDNULL);
9496 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9500 mono_mb_patch_branch (mb, pos_was_ok);
9501 mono_mb_emit_byte (mb, CEE_POP);
9502 mono_mb_emit_ldarg (mb, 0);
9506 mono_mb_patch_branch (mb, pos_end);
9507 mono_mb_patch_branch (mb, pos_end2);
9508 mono_mb_emit_byte (mb, CEE_RET);
9510 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9517 * mono_marshal_get_castclass:
9518 * @klass: the type of the field
9520 * This method generates a function which can be used to cast an object to
9521 * an instance of the given type, icluding the case where the object is a proxy.
9522 * The generated function has the following signature:
9523 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9526 mono_marshal_get_castclass (MonoClass *klass)
9528 static MonoMethodSignature *castclass_sig = NULL;
9531 int pos_was_ok, pos_was_ok2;
9533 MonoMethodBuilder *mb;
9535 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9536 if ((res = mono_marshal_find_in_cache (cache, klass)))
9539 if (!castclass_sig) {
9540 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9541 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9542 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9543 castclass_sig->pinvoke = 0;
9546 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9547 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9550 mb->method->save_lmf = 1;
9552 /* check if the object is a proxy that needs special cast */
9553 mono_mb_emit_ldarg (mb, 0);
9554 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9555 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9557 /* The result of MONO_ISINST can be:
9558 0) the cast is valid
9559 1) cast of unknown proxy type
9560 or an exception if the cast is is invalid
9563 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9565 /* get the real proxy from the transparent proxy*/
9567 mono_mb_emit_ldarg (mb, 0);
9568 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9569 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9572 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9575 mono_mb_patch_branch (mb, pos_was_ok);
9576 mono_mb_patch_branch (mb, pos_was_ok2);
9577 mono_mb_emit_ldarg (mb, 0);
9580 mono_mb_emit_byte (mb, CEE_RET);
9582 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9589 mono_marshal_get_proxy_cancast (MonoClass *klass)
9591 static MonoMethodSignature *isint_sig = NULL;
9594 int pos_failed, pos_end;
9596 MonoMethod *can_cast_to;
9597 MonoMethodDesc *desc;
9598 MonoMethodBuilder *mb;
9600 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9601 if ((res = mono_marshal_find_in_cache (cache, klass)))
9605 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9606 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9607 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9608 isint_sig->pinvoke = 0;
9611 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9612 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9615 mb->method->save_lmf = 1;
9617 /* get the real proxy from the transparent proxy*/
9618 mono_mb_emit_ldarg (mb, 0);
9619 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9620 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9622 /* get the reflection type from the type handle */
9623 mono_mb_emit_ptr (mb, &klass->byval_arg);
9624 mono_mb_emit_icall (mb, type_from_handle);
9626 mono_mb_emit_ldarg (mb, 0);
9628 /* make the call to CanCastTo (type, ob) */
9629 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9630 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9631 g_assert (can_cast_to);
9632 mono_method_desc_free (desc);
9633 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9635 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9637 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9638 mono_mb_emit_ptr (mb, &klass->byval_arg);
9639 mono_mb_emit_icall (mb, type_from_handle);
9640 mono_mb_emit_ldarg (mb, 0);
9642 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9643 emit_thread_interrupt_checkpoint (mb);
9645 mono_mb_emit_ldarg (mb, 0);
9646 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9650 mono_mb_patch_branch (mb, pos_failed);
9651 mono_mb_emit_byte (mb, CEE_LDNULL);
9655 mono_mb_patch_branch (mb, pos_end);
9656 mono_mb_emit_byte (mb, CEE_RET);
9658 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9665 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9668 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9669 klass = mono_class_from_mono_type (rtype->type);
9670 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9674 * mono_marshal_get_struct_to_ptr:
9677 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9680 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9682 MonoMethodBuilder *mb;
9683 static MonoMethod *stoptr = NULL;
9686 g_assert (klass != NULL);
9688 mono_marshal_load_type_info (klass);
9690 if (klass->marshal_info->str_to_ptr)
9691 return klass->marshal_info->str_to_ptr;
9694 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9697 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9699 if (klass->blittable) {
9700 mono_mb_emit_byte (mb, CEE_LDARG_1);
9701 mono_mb_emit_byte (mb, CEE_LDARG_0);
9702 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9703 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9704 mono_mb_emit_byte (mb, CEE_PREFIX1);
9705 mono_mb_emit_byte (mb, CEE_CPBLK);
9708 /* allocate local 0 (pointer) src_ptr */
9709 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9710 /* allocate local 1 (pointer) dst_ptr */
9711 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9712 /* allocate local 2 (boolean) delete_old */
9713 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9714 mono_mb_emit_byte (mb, CEE_LDARG_2);
9715 mono_mb_emit_stloc (mb, 2);
9717 /* initialize src_ptr to point to the start of object data */
9718 mono_mb_emit_byte (mb, CEE_LDARG_0);
9719 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9720 mono_mb_emit_stloc (mb, 0);
9722 /* initialize dst_ptr */
9723 mono_mb_emit_byte (mb, CEE_LDARG_1);
9724 mono_mb_emit_stloc (mb, 1);
9726 emit_struct_conv (mb, klass, FALSE);
9729 mono_mb_emit_byte (mb, CEE_RET);
9731 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9734 klass->marshal_info->str_to_ptr = res;
9739 * mono_marshal_get_ptr_to_struct:
9742 * generates IL code for PtrToStructure (IntPtr src, object structure)
9745 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9747 MonoMethodBuilder *mb;
9748 static MonoMethodSignature *ptostr = NULL;
9751 g_assert (klass != NULL);
9753 mono_marshal_load_type_info (klass);
9755 if (klass->marshal_info->ptr_to_str)
9756 return klass->marshal_info->ptr_to_str;
9759 MonoMethodSignature *sig;
9761 /* Create the signature corresponding to
9762 static void PtrToStructure (IntPtr ptr, object structure);
9763 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9764 sig = mono_create_icall_signature ("void ptr object");
9765 sig = signature_dup (mono_defaults.corlib, sig);
9767 mono_memory_barrier ();
9771 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9773 if (klass->blittable) {
9774 mono_mb_emit_byte (mb, CEE_LDARG_1);
9775 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9776 mono_mb_emit_byte (mb, CEE_LDARG_0);
9777 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9778 mono_mb_emit_byte (mb, CEE_PREFIX1);
9779 mono_mb_emit_byte (mb, CEE_CPBLK);
9782 /* allocate local 0 (pointer) src_ptr */
9783 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9784 /* allocate local 1 (pointer) dst_ptr */
9785 mono_mb_add_local (mb, &klass->this_arg);
9787 /* initialize src_ptr to point to the start of object data */
9788 mono_mb_emit_byte (mb, CEE_LDARG_0);
9789 mono_mb_emit_stloc (mb, 0);
9791 /* initialize dst_ptr */
9792 mono_mb_emit_byte (mb, CEE_LDARG_1);
9793 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9794 mono_mb_emit_stloc (mb, 1);
9796 emit_struct_conv (mb, klass, TRUE);
9799 mono_mb_emit_byte (mb, CEE_RET);
9801 res = mono_mb_create_method (mb, ptostr, 0);
9804 klass->marshal_info->ptr_to_str = res;
9809 * generates IL code for the synchronized wrapper: the generated method
9810 * calls METHOD while locking 'this' or the parent type.
9813 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9815 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9816 MonoMethodSignature *sig;
9817 MonoExceptionClause *clause;
9818 MonoMethodBuilder *mb;
9821 int i, pos, this_local, ret_local = 0;
9825 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9828 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9829 if ((res = mono_marshal_find_in_cache (cache, method)))
9832 sig = signature_dup (method->klass->image, mono_method_signature (method));
9835 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9838 if (!MONO_TYPE_IS_VOID (sig->ret))
9839 ret_local = mono_mb_add_local (mb, sig->ret);
9841 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9842 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9843 /* This will throw the type load exception when the wrapper is compiled */
9844 mono_mb_emit_byte (mb, CEE_LDNULL);
9845 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9846 mono_mb_emit_byte (mb, CEE_POP);
9848 if (!MONO_TYPE_IS_VOID (sig->ret))
9849 mono_mb_emit_ldloc (mb, ret_local);
9850 mono_mb_emit_byte (mb, CEE_RET);
9852 res = mono_mb_create_and_cache (cache, method,
9853 mb, sig, sig->param_count + 16);
9860 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9862 mono_loader_lock ();
9863 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9864 mono_loader_unlock ();
9865 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9867 mono_loader_lock ();
9869 if (!enter_method) {
9870 MonoMethodDesc *desc;
9872 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9873 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9874 g_assert (enter_method);
9875 mono_method_desc_free (desc);
9877 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9878 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9879 g_assert (exit_method);
9880 mono_method_desc_free (desc);
9882 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9883 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9884 g_assert (gettypefromhandle_method);
9885 mono_method_desc_free (desc);
9888 mono_loader_unlock ();
9890 /* Push this or the type object */
9891 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9892 /* We have special handling for this in the JIT */
9893 int index = mono_mb_add_data (mb, method->klass);
9894 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9895 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9896 mono_mb_emit_i4 (mb, index);
9898 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9901 mono_mb_emit_ldarg (mb, 0);
9902 mono_mb_emit_stloc (mb, this_local);
9904 /* Call Monitor::Enter() */
9905 mono_mb_emit_ldloc (mb, this_local);
9906 mono_mb_emit_managed_call (mb, enter_method, NULL);
9908 clause->try_offset = mono_mb_get_label (mb);
9910 /* Call the method */
9912 mono_mb_emit_ldarg (mb, 0);
9913 for (i = 0; i < sig->param_count; i++)
9914 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9916 mono_mb_emit_managed_call (mb, method, NULL);
9918 if (!MONO_TYPE_IS_VOID (sig->ret))
9919 mono_mb_emit_stloc (mb, ret_local);
9921 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9923 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9924 clause->handler_offset = mono_mb_get_label (mb);
9926 /* Call Monitor::Exit() */
9927 mono_mb_emit_ldloc (mb, this_local);
9928 mono_mb_emit_managed_call (mb, exit_method, NULL);
9929 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9931 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9933 mono_mb_patch_branch (mb, pos);
9934 if (!MONO_TYPE_IS_VOID (sig->ret))
9935 mono_mb_emit_ldloc (mb, ret_local);
9936 mono_mb_emit_byte (mb, CEE_RET);
9938 mono_mb_set_clauses (mb, 1, clause);
9940 res = mono_mb_create_and_cache (cache, method,
9941 mb, sig, sig->param_count + 16);
9949 * the returned method calls 'method' unboxing the this argument
9952 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9954 MonoMethodSignature *sig = mono_method_signature (method);
9956 MonoMethodBuilder *mb;
9960 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9961 if ((res = mono_marshal_find_in_cache (cache, method)))
9964 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9966 g_assert (sig->hasthis);
9968 mono_mb_emit_ldarg (mb, 0);
9969 mono_mb_emit_icon (mb, sizeof (MonoObject));
9970 mono_mb_emit_byte (mb, CEE_ADD);
9971 for (i = 0; i < sig->param_count; ++i)
9972 mono_mb_emit_ldarg (mb, i + 1);
9973 mono_mb_emit_managed_call (mb, method, NULL);
9974 mono_mb_emit_byte (mb, CEE_RET);
9976 res = mono_mb_create_and_cache (cache, method,
9977 mb, sig, sig->param_count + 16);
9980 /* 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)); */
9986 mono_marshal_get_stelemref ()
9988 static MonoMethod* ret = NULL;
9989 MonoMethodSignature *sig;
9990 MonoMethodBuilder *mb;
9992 guint32 b1, b2, b3, b4;
9995 int array_slot_addr;
10000 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10003 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10005 /* void stelemref (void* array, int idx, void* value) */
10006 sig->ret = &mono_defaults.void_class->byval_arg;
10007 sig->params [0] = &mono_defaults.object_class->byval_arg;
10008 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10009 sig->params [2] = &mono_defaults.object_class->byval_arg;
10011 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10012 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10013 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10017 <ldelema (bound check)>
10021 aklass = array->vtable->klass->element_class;
10022 vklass = value->vtable->klass;
10024 if (vklass->idepth < aklass->idepth)
10027 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10031 *array_slot_addr = value;
10035 if (mono_object_isinst (value, aklass))
10038 throw new ArrayTypeMismatchException ();
10041 /* ldelema (implicit bound check) */
10042 mono_mb_emit_ldarg (mb, 0);
10043 mono_mb_emit_ldarg (mb, 1);
10044 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10045 mono_mb_emit_stloc (mb, array_slot_addr);
10047 /* if (!value) goto do_store */
10048 mono_mb_emit_ldarg (mb, 2);
10049 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10051 /* aklass = array->vtable->klass->element_class */
10052 mono_mb_emit_ldarg (mb, 0);
10053 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10054 mono_mb_emit_byte (mb, CEE_LDIND_I);
10055 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10056 mono_mb_emit_byte (mb, CEE_LDIND_I);
10057 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10058 mono_mb_emit_byte (mb, CEE_LDIND_I);
10059 mono_mb_emit_stloc (mb, aklass);
10061 /* vklass = value->vtable->klass */
10062 mono_mb_emit_ldarg (mb, 2);
10063 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10064 mono_mb_emit_byte (mb, CEE_LDIND_I);
10065 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10066 mono_mb_emit_byte (mb, CEE_LDIND_I);
10067 mono_mb_emit_stloc (mb, vklass);
10069 /* if (vklass->idepth < aklass->idepth) goto failue */
10070 mono_mb_emit_ldloc (mb, vklass);
10071 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10072 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10074 mono_mb_emit_ldloc (mb, aklass);
10075 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10076 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10078 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10080 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10081 mono_mb_emit_ldloc (mb, vklass);
10082 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10083 mono_mb_emit_byte (mb, CEE_LDIND_I);
10085 mono_mb_emit_ldloc (mb, aklass);
10086 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10087 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10088 mono_mb_emit_icon (mb, 1);
10089 mono_mb_emit_byte (mb, CEE_SUB);
10090 mono_mb_emit_icon (mb, sizeof (void*));
10091 mono_mb_emit_byte (mb, CEE_MUL);
10092 mono_mb_emit_byte (mb, CEE_ADD);
10093 mono_mb_emit_byte (mb, CEE_LDIND_I);
10095 mono_mb_emit_ldloc (mb, aklass);
10097 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10099 copy_pos = mono_mb_get_label (mb);
10101 mono_mb_patch_branch (mb, b1);
10102 mono_mb_emit_ldloc (mb, array_slot_addr);
10103 mono_mb_emit_ldarg (mb, 2);
10104 mono_mb_emit_byte (mb, CEE_STIND_REF);
10106 mono_mb_emit_byte (mb, CEE_RET);
10109 mono_mb_patch_branch (mb, b2);
10110 mono_mb_patch_branch (mb, b3);
10112 mono_mb_emit_ldarg (mb, 2);
10113 mono_mb_emit_ldloc (mb, aklass);
10114 mono_mb_emit_icall (mb, mono_object_isinst);
10116 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10117 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10118 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10120 mono_mb_emit_byte (mb, CEE_RET);
10121 ret = mono_mb_create_method (mb, sig, 4);
10129 MonoMethod *method;
10132 /* LOCKING: vars accessed under the marshal lock */
10133 static ArrayElemAddr *elem_addr_cache = NULL;
10134 static int elem_addr_cache_size = 0;
10135 static int elem_addr_cache_next = 0;
10138 * mono_marshal_get_array_address:
10139 * @rank: rank of the array type
10140 * @elem_size: size in bytes of an element of an array.
10142 * Returns a MonoMethd that implements the code to get the address
10143 * of an element in a multi-dimenasional array of @rank dimensions.
10144 * The returned method takes an array as the first argument and then
10145 * @rank indexes for the @rank dimensions.
10148 mono_marshal_get_array_address (int rank, int elem_size)
10151 MonoMethodBuilder *mb;
10152 MonoMethodSignature *sig;
10153 int i, bounds, ind, realidx;
10154 int branch_pos, *branch_positions;
10158 mono_marshal_lock ();
10159 for (i = 0; i < elem_addr_cache_next; ++i) {
10160 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10161 ret = elem_addr_cache [i].method;
10165 mono_marshal_unlock ();
10169 branch_positions = g_new0 (int, rank);
10171 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10173 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10174 sig->ret = &mono_defaults.int_class->byval_arg;
10175 sig->params [0] = &mono_defaults.object_class->byval_arg;
10176 for (i = 0; i < rank; ++i) {
10177 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10180 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10182 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10183 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10184 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10186 /* bounds = array->bounds; */
10187 mono_mb_emit_ldarg (mb, 0);
10188 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10189 mono_mb_emit_byte (mb, CEE_LDIND_I);
10190 mono_mb_emit_stloc (mb, bounds);
10192 /* ind is the overall element index, realidx is the partial index in a single dimension */
10193 /* ind = idx0 - bounds [0].lower_bound */
10194 mono_mb_emit_ldarg (mb, 1);
10195 mono_mb_emit_ldloc (mb, bounds);
10196 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10197 mono_mb_emit_byte (mb, CEE_ADD);
10198 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10199 mono_mb_emit_byte (mb, CEE_SUB);
10200 mono_mb_emit_stloc (mb, ind);
10201 /* if (ind >= bounds [0].length) goto exeception; */
10202 mono_mb_emit_ldloc (mb, ind);
10203 mono_mb_emit_ldloc (mb, bounds);
10204 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10205 mono_mb_emit_byte (mb, CEE_ADD);
10206 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10207 /* note that we use unsigned comparison */
10208 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10210 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10211 * We could also decide to ignore the passed elem_size and get it
10212 * from the array object, to reduce the number of methods we generate:
10213 * the additional cost is 3 memory loads and a non-immediate mul.
10215 for (i = 1; i < rank; ++i) {
10216 /* realidx = idxi - bounds [i].lower_bound */
10217 mono_mb_emit_ldarg (mb, 1 + i);
10218 mono_mb_emit_ldloc (mb, bounds);
10219 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10220 mono_mb_emit_byte (mb, CEE_ADD);
10221 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10222 mono_mb_emit_byte (mb, CEE_SUB);
10223 mono_mb_emit_stloc (mb, realidx);
10224 /* if (realidx >= bounds [i].length) goto exeception; */
10225 mono_mb_emit_ldloc (mb, realidx);
10226 mono_mb_emit_ldloc (mb, bounds);
10227 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10228 mono_mb_emit_byte (mb, CEE_ADD);
10229 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10230 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10231 /* ind = ind * bounds [i].length + realidx */
10232 mono_mb_emit_ldloc (mb, ind);
10233 mono_mb_emit_ldloc (mb, bounds);
10234 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10235 mono_mb_emit_byte (mb, CEE_ADD);
10236 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10237 mono_mb_emit_byte (mb, CEE_MUL);
10238 mono_mb_emit_ldloc (mb, realidx);
10239 mono_mb_emit_byte (mb, CEE_ADD);
10240 mono_mb_emit_stloc (mb, ind);
10243 /* return array->vector + ind * element_size */
10244 mono_mb_emit_ldarg (mb, 0);
10245 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10246 mono_mb_emit_ldloc (mb, ind);
10247 mono_mb_emit_icon (mb, elem_size);
10248 mono_mb_emit_byte (mb, CEE_MUL);
10249 mono_mb_emit_byte (mb, CEE_ADD);
10250 mono_mb_emit_byte (mb, CEE_RET);
10252 /* patch the branches to get here and throw */
10253 for (i = 1; i < rank; ++i) {
10254 mono_mb_patch_branch (mb, branch_positions [i]);
10256 mono_mb_patch_branch (mb, branch_pos);
10257 /* throw exception */
10258 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10260 g_free (branch_positions);
10261 ret = mono_mb_create_method (mb, sig, 4);
10264 /* cache the result */
10266 mono_marshal_lock ();
10267 for (i = 0; i < elem_addr_cache_next; ++i) {
10268 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10269 /* FIXME: free ret */
10270 ret = elem_addr_cache [i].method;
10276 if (elem_addr_cache_next >= elem_addr_cache_size) {
10277 int new_size = elem_addr_cache_size + 4;
10278 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10279 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10280 g_free (elem_addr_cache);
10281 elem_addr_cache = new_array;
10282 elem_addr_cache_size = new_size;
10284 elem_addr_cache [elem_addr_cache_next].rank = rank;
10285 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10286 elem_addr_cache [elem_addr_cache_next].method = ret;
10288 mono_marshal_unlock ();
10293 mono_marshal_alloc (gulong size)
10297 #ifdef PLATFORM_WIN32
10298 res = CoTaskMemAlloc (size);
10300 res = g_try_malloc ((gulong)size);
10302 mono_gc_out_of_memory ((gulong)size);
10308 mono_marshal_free (gpointer ptr)
10310 #ifdef PLATFORM_WIN32
10311 CoTaskMemFree (ptr);
10318 mono_marshal_free_array (gpointer *ptr, int size)
10325 for (i = 0; i < size; i++)
10331 mono_marshal_string_to_utf16 (MonoString *s)
10333 return s ? mono_string_chars (s) : NULL;
10337 mono_marshal_string_to_utf16_copy (MonoString *s)
10342 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10343 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10344 res [mono_string_length (s)] = 0;
10350 * mono_marshal_set_last_error:
10352 * This function is invoked to set the last error value from a P/Invoke call
10353 * which has SetLastError set.
10356 mono_marshal_set_last_error (void)
10359 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10361 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10366 mono_marshal_set_last_error_windows (int error)
10369 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10374 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10375 gpointer dest, gint32 length)
10380 MONO_ARCH_SAVE_REGS;
10382 MONO_CHECK_ARG_NULL (src);
10383 MONO_CHECK_ARG_NULL (dest);
10385 if (src->obj.vtable->klass->rank != 1)
10386 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10387 if (start_index < 0)
10388 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10390 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10391 if (start_index + length > mono_array_length (src))
10392 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10394 element_size = mono_array_element_size (src->obj.vtable->klass);
10396 /* no references should be involved */
10397 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10399 memcpy (dest, source_addr, length * element_size);
10403 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10404 MonoArray *dest, gint32 length)
10409 MONO_ARCH_SAVE_REGS;
10411 MONO_CHECK_ARG_NULL (src);
10412 MONO_CHECK_ARG_NULL (dest);
10414 if (dest->obj.vtable->klass->rank != 1)
10415 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10416 if (start_index < 0)
10417 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10419 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10420 if (start_index + length > mono_array_length (dest))
10421 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10423 element_size = mono_array_element_size (dest->obj.vtable->klass);
10425 /* no references should be involved */
10426 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10428 memcpy (dest_addr, src, length * element_size);
10431 #if NO_UNALIGNED_ACCESS
10432 #define RETURN_UNALIGNED(type, addr) \
10435 memcpy(&val, p + offset, sizeof(val)); \
10438 #define WRITE_UNALIGNED(type, addr, val) \
10439 memcpy(addr, &val, sizeof(type))
10441 #define RETURN_UNALIGNED(type, addr) \
10442 return *(type*)(p + offset);
10443 #define WRITE_UNALIGNED(type, addr, val) \
10444 (*(type *)(addr) = (val))
10448 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10452 MONO_ARCH_SAVE_REGS;
10454 RETURN_UNALIGNED(gpointer, p + offset);
10458 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10462 MONO_ARCH_SAVE_REGS;
10464 return *(unsigned char*)(p + offset);
10468 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10472 MONO_ARCH_SAVE_REGS;
10474 RETURN_UNALIGNED(gint16, p + offset);
10478 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10482 MONO_ARCH_SAVE_REGS;
10484 RETURN_UNALIGNED(gint32, p + offset);
10488 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10492 MONO_ARCH_SAVE_REGS;
10494 RETURN_UNALIGNED(gint64, p + offset);
10498 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10502 MONO_ARCH_SAVE_REGS;
10504 *(unsigned char*)(p + offset) = val;
10508 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10512 MONO_ARCH_SAVE_REGS;
10514 WRITE_UNALIGNED(gpointer, p + offset, val);
10518 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10522 MONO_ARCH_SAVE_REGS;
10524 WRITE_UNALIGNED(gint16, p + offset, val);
10528 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10532 MONO_ARCH_SAVE_REGS;
10534 WRITE_UNALIGNED(gint32, p + offset, val);
10538 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10542 MONO_ARCH_SAVE_REGS;
10544 WRITE_UNALIGNED(gint64, p + offset, val);
10548 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10550 MONO_ARCH_SAVE_REGS;
10555 return mono_string_new (mono_domain_get (), ptr);
10559 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10561 MONO_ARCH_SAVE_REGS;
10564 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10565 g_assert_not_reached ();
10568 return mono_string_new_len (mono_domain_get (), ptr, len);
10573 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10575 MonoDomain *domain = mono_domain_get ();
10579 MONO_ARCH_SAVE_REGS;
10587 return mono_string_new_utf16 (domain, ptr, len);
10591 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10593 MonoDomain *domain = mono_domain_get ();
10595 MONO_ARCH_SAVE_REGS;
10598 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10599 g_assert_not_reached ();
10602 return mono_string_new_utf16 (domain, ptr, len);
10607 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10609 MONO_ARCH_SAVE_REGS;
10611 return mono_string_from_bstr(ptr);
10615 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10617 MONO_ARCH_SAVE_REGS;
10619 return mono_string_to_bstr(ptr);
10624 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10625 int (STDCALL *AddRef)(gpointer pUnk);
10626 int (STDCALL *Release)(gpointer pUnk);
10630 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10632 MONO_ARCH_SAVE_REGS;
10634 mono_free_bstr (ptr);
10638 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10641 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10645 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10648 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10652 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10655 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10658 #ifndef DISABLE_COM
10660 #define MONO_S_OK 0x00000000L
10661 #define MONO_E_NOINTERFACE 0x80004002L
10662 #define MONO_E_NOTIMPL 0x80004001L
10664 static gboolean cominterop_can_support_dispatch (MonoClass* klass)
10666 if (!(klass->flags & TYPE_ATTRIBUTE_PUBLIC) )
10669 if (!cominterop_com_visible (klass))
10676 cominterop_get_idispatch_for_object (MonoObject* object)
10681 if (cominterop_object_is_rcw (object)) {
10682 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10683 mono_defaults.idispatch_class, TRUE);
10686 MonoClass* klass = mono_object_class (object);
10687 if (!cominterop_can_support_dispatch (klass) )
10688 cominterop_raise_hr_exception (MONO_E_NOINTERFACE);
10689 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10696 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10698 #ifndef DISABLE_COM
10702 mono_init_com_types ();
10704 if (cominterop_object_is_rcw (object)) {
10705 MonoClass *klass = NULL;
10706 MonoRealProxy* real_proxy = NULL;
10709 klass = mono_object_class (object);
10710 if (klass != mono_defaults.transparent_proxy_class) {
10711 g_assert_not_reached ();
10715 real_proxy = ((MonoTransparentProxy*)object)->rp;
10717 g_assert_not_reached ();
10721 klass = mono_object_class (real_proxy);
10722 if (klass != mono_defaults.com_interop_proxy_class) {
10723 g_assert_not_reached ();
10727 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10728 g_assert_not_reached ();
10732 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10735 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10738 g_assert_not_reached ();
10743 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10745 #ifndef DISABLE_COM
10746 MonoObject* object = NULL;
10751 /* see if it is a CCW */
10752 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10756 g_assert_not_reached ();
10761 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10763 #ifndef DISABLE_COM
10764 mono_init_com_types ();
10766 return cominterop_get_idispatch_for_object (object);
10768 g_assert_not_reached ();
10773 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10775 #ifndef DISABLE_COM
10776 MonoClass* klass = NULL;
10779 g_assert (type->type);
10780 klass = mono_type_get_class (type->type);
10782 itf = cominterop_get_ccw (object, klass);
10786 g_assert_not_reached ();
10792 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10794 #ifndef DISABLE_COM
10795 return (MonoBoolean)cominterop_object_is_rcw (object);
10797 g_assert_not_reached ();
10802 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10804 #ifndef DISABLE_COM
10805 MonoComInteropProxy* proxy = NULL;
10806 gint32 ref_count = 0;
10809 g_assert (cominterop_object_is_rcw (object));
10811 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10814 ref_count = InterlockedDecrement (&proxy->ref_count);
10815 g_assert (ref_count >= 0);
10817 if (ref_count == 0)
10818 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10822 g_assert_not_reached ();
10827 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10829 MONO_ARCH_SAVE_REGS;
10831 #ifndef DISABLE_COM
10832 return cominterop_get_com_slot_for_method (m->method);
10834 g_assert_not_reached ();
10839 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10841 MONO_ARCH_SAVE_REGS;
10843 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10847 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10853 MONO_ARCH_SAVE_REGS;
10855 MONO_CHECK_ARG_NULL (rtype);
10857 type = rtype->type;
10858 klass = mono_class_from_mono_type (type);
10859 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10861 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10863 MonoException *exc;
10865 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10866 exc = mono_get_exception_argument ("t", msg);
10868 mono_raise_exception (exc);
10872 return mono_class_native_size (klass, NULL);
10876 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10878 MonoMethod *method;
10881 MONO_ARCH_SAVE_REGS;
10883 MONO_CHECK_ARG_NULL (obj);
10884 MONO_CHECK_ARG_NULL (dst);
10886 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10890 pa [2] = &delete_old;
10892 mono_runtime_invoke (method, NULL, pa, NULL);
10896 ptr_to_structure (gpointer src, MonoObject *dst)
10898 MonoMethod *method;
10901 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10906 mono_runtime_invoke (method, NULL, pa, NULL);
10910 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10914 MONO_ARCH_SAVE_REGS;
10916 MONO_CHECK_ARG_NULL (src);
10917 MONO_CHECK_ARG_NULL (dst);
10919 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10921 if (t->type == MONO_TYPE_VALUETYPE) {
10922 MonoException *exc;
10925 tmp = g_strdup_printf ("Destination is a boxed value type.");
10926 exc = mono_get_exception_argument ("dst", tmp);
10929 mono_raise_exception (exc);
10933 ptr_to_structure (src, dst);
10937 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10939 MonoDomain *domain = mono_domain_get ();
10942 MONO_ARCH_SAVE_REGS;
10944 MONO_CHECK_ARG_NULL (src);
10945 MONO_CHECK_ARG_NULL (type);
10947 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10949 ptr_to_structure (src, res);
10955 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10957 MonoMarshalType *info;
10960 int match_index = -1;
10962 MONO_ARCH_SAVE_REGS;
10964 MONO_CHECK_ARG_NULL (type);
10965 MONO_CHECK_ARG_NULL (field_name);
10967 fname = mono_string_to_utf8 (field_name);
10968 klass = mono_class_from_mono_type (type->type);
10970 while (klass && match_index == -1) {
10971 MonoClassField* field;
10973 gpointer iter = NULL;
10974 while ((field = mono_class_get_fields (klass, &iter))) {
10975 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10977 if (!strcmp (fname, mono_field_get_name (field))) {
10984 if (match_index == -1)
10985 klass = klass->parent;
10990 if(match_index == -1) {
10991 MonoException* exc;
10994 /* Get back original class instance */
10995 klass = mono_class_from_mono_type (type->type);
10997 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10998 exc = mono_get_exception_argument ("fieldName", tmp);
11001 mono_raise_exception ((MonoException*)exc);
11004 info = mono_marshal_load_type_info (klass);
11005 return info->fields [match_index].offset;
11009 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11011 #ifdef PLATFORM_WIN32
11014 tres = mono_string_to_utf8 (string);
11018 len = strlen (tres) + 1;
11019 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11020 memcpy (ret, tres, len);
11025 return mono_string_to_utf8 (string);
11030 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11032 MONO_ARCH_SAVE_REGS;
11034 if (string == NULL)
11037 #ifdef PLATFORM_WIN32
11038 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11039 ((mono_string_length (string) + 1) * 2);
11041 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11043 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11044 res [mono_string_length (string)] = 0;
11050 mono_struct_delete_old (MonoClass *klass, char *ptr)
11052 MonoMarshalType *info;
11055 info = mono_marshal_load_type_info (klass);
11057 for (i = 0; i < info->num_fields; i++) {
11058 MonoMarshalNative ntype;
11059 MonoMarshalConv conv;
11060 MonoType *ftype = info->fields [i].field->type;
11063 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11066 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11067 klass->unicode, &conv);
11069 cpos = ptr + info->fields [i].offset;
11072 case MONO_MARSHAL_CONV_NONE:
11073 if (MONO_TYPE_ISSTRUCT (ftype)) {
11074 mono_struct_delete_old (ftype->data.klass, cpos);
11078 case MONO_MARSHAL_CONV_STR_LPWSTR:
11079 /* We assume this field points inside a MonoString */
11081 case MONO_MARSHAL_CONV_STR_LPTSTR:
11082 #ifdef PLATFORM_WIN32
11083 /* We assume this field points inside a MonoString
11087 case MONO_MARSHAL_CONV_STR_LPSTR:
11088 case MONO_MARSHAL_CONV_STR_BSTR:
11089 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11090 case MONO_MARSHAL_CONV_STR_TBSTR:
11091 mono_marshal_free (*(gpointer *)cpos);
11101 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11105 MONO_ARCH_SAVE_REGS;
11107 MONO_CHECK_ARG_NULL (src);
11108 MONO_CHECK_ARG_NULL (type);
11110 klass = mono_class_from_mono_type (type->type);
11112 mono_struct_delete_old (klass, (char *)src);
11116 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11120 MONO_ARCH_SAVE_REGS;
11122 if ((gulong)size == 0)
11123 /* This returns a valid pointer for size 0 on MS.NET */
11126 #ifdef PLATFORM_WIN32
11127 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11129 res = g_try_malloc ((gulong)size);
11132 mono_gc_out_of_memory ((gulong)size);
11138 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11143 mono_gc_out_of_memory ((gulong)size);
11147 #ifdef PLATFORM_WIN32
11148 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11150 res = g_try_realloc (ptr, (gulong)size);
11153 mono_gc_out_of_memory ((gulong)size);
11159 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11161 MONO_ARCH_SAVE_REGS;
11163 #ifdef PLATFORM_WIN32
11171 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11173 MONO_ARCH_SAVE_REGS;
11175 #ifdef PLATFORM_WIN32
11176 return CoTaskMemAlloc (size);
11178 return g_try_malloc ((gulong)size);
11183 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11185 MONO_ARCH_SAVE_REGS;
11187 #ifdef PLATFORM_WIN32
11188 CoTaskMemFree (ptr);
11195 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11197 MONO_ARCH_SAVE_REGS;
11199 #ifdef PLATFORM_WIN32
11200 return CoTaskMemRealloc (ptr, size);
11202 return g_try_realloc (ptr, (gulong)size);
11207 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11209 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11213 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11215 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
11218 /* Only used for COM RCWs */
11220 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
11223 MonoDomain *domain;
11226 MONO_ARCH_SAVE_REGS;
11228 domain = mono_object_domain (type);
11229 klass = mono_class_from_mono_type (type->type);
11231 /* call mono_object_new_alloc_specific instead of mono_object_new
11232 * because we want to actually create object. mono_object_new checks
11233 * to see if type is import and creates transparent proxy. this method
11234 * is called by the corresponding real proxy to create the real RCW.
11235 * Constructor does not need to be called. Will be called later.
11237 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
11242 cominterop_rcw_interface_finalizer (gpointer key, gpointer value, gpointer user_data)
11244 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
11249 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
11252 if (obj->itf_hash) {
11253 guint32 gchandle = 0;
11254 mono_cominterop_lock ();
11255 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
11257 mono_gchandle_free (gchandle);
11258 g_hash_table_remove (rcw_hash, obj->iunknown);
11261 g_hash_table_foreach_remove (obj->itf_hash, cominterop_rcw_interface_finalizer, NULL);
11262 g_hash_table_destroy (obj->itf_hash);
11263 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
11264 obj->itf_hash = obj->iunknown = NULL;
11265 mono_cominterop_unlock ();
11269 #ifndef DISABLE_COM
11272 cominterop_rcw_finalizer (gpointer key, gpointer value, gpointer user_data)
11274 guint32 gchandle = 0;
11276 gchandle = GPOINTER_TO_UINT (value);
11278 MonoComInteropProxy* proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11281 if (proxy->com_object->itf_hash) {
11282 g_hash_table_foreach_remove (proxy->com_object->itf_hash, cominterop_rcw_interface_finalizer, NULL);
11283 g_hash_table_destroy (proxy->com_object->itf_hash);
11285 if (proxy->com_object->iunknown)
11286 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (proxy->com_object->iunknown);
11287 proxy->com_object->itf_hash = proxy->com_object->iunknown = NULL;
11290 mono_gchandle_free (gchandle);
11297 cominterop_release_all_rcws ()
11302 mono_cominterop_lock ();
11304 g_hash_table_foreach_remove (rcw_hash, cominterop_rcw_finalizer, NULL);
11305 g_hash_table_destroy (rcw_hash);
11308 mono_cominterop_unlock ();
11314 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
11316 #ifndef DISABLE_COM
11317 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
11319 g_assert_not_reached ();
11324 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
11326 #ifndef DISABLE_COM
11327 guint32 gchandle = 0;
11329 mono_cominterop_lock ();
11330 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11331 mono_cominterop_unlock ();
11334 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
11336 mono_cominterop_lock ();
11337 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
11338 mono_cominterop_unlock ();
11340 g_assert_not_reached ();
11344 MonoComInteropProxy*
11345 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
11347 #ifndef DISABLE_COM
11348 MonoComInteropProxy* proxy = NULL;
11349 guint32 gchandle = 0;
11351 mono_cominterop_lock ();
11353 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
11354 mono_cominterop_unlock ();
11356 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11357 /* proxy is null means we need to free up old RCW */
11359 mono_gchandle_free (gchandle);
11360 g_hash_table_remove (rcw_hash, pUnk);
11365 g_assert_not_reached ();
11370 * mono_marshal_is_loading_type_info:
11372 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11376 mono_marshal_is_loading_type_info (MonoClass *klass)
11378 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
11380 return g_slist_find (loads_list, klass) != NULL;
11384 * mono_marshal_load_type_info:
11386 * Initialize klass->marshal_info using information from metadata. This function can
11387 * recursively call itself, and the caller is responsible to avoid that by calling
11388 * mono_marshal_is_loading_type_info () beforehand.
11390 * LOCKING: Acquires the loader lock.
11393 mono_marshal_load_type_info (MonoClass* klass)
11396 guint32 native_size = 0, min_align = 1;
11397 MonoMarshalType *info;
11398 MonoClassField* field;
11401 GSList *loads_list;
11403 g_assert (klass != NULL);
11405 if (klass->marshal_info)
11406 return klass->marshal_info;
11408 if (!klass->inited)
11409 mono_class_init (klass);
11411 mono_loader_lock ();
11413 if (klass->marshal_info) {
11414 mono_loader_unlock ();
11415 return klass->marshal_info;
11419 * This function can recursively call itself, so we keep the list of classes which are
11420 * under initialization in a TLS list.
11422 g_assert (!mono_marshal_is_loading_type_info (klass));
11423 loads_list = TlsGetValue (load_type_info_tls_id);
11424 loads_list = g_slist_prepend (loads_list, klass);
11425 TlsSetValue (load_type_info_tls_id, loads_list);
11428 while ((field = mono_class_get_fields (klass, &iter))) {
11429 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11431 if (mono_field_is_deleted (field))
11436 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11438 /* The mempool is protected by the loader lock */
11439 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11440 info->num_fields = count;
11442 /* Try to find a size for this type in metadata */
11443 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11445 if (klass->parent) {
11446 int parent_size = mono_class_native_size (klass->parent, NULL);
11448 /* Add parent size to real size */
11449 native_size += parent_size;
11450 info->native_size = parent_size;
11455 while ((field = mono_class_get_fields (klass, &iter))) {
11459 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11462 if (mono_field_is_deleted (field))
11464 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11465 mono_metadata_field_info_with_mempool (klass->image->mempool, klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11466 NULL, NULL, &info->fields [j].mspec);
11468 info->fields [j].field = field;
11470 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11471 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11472 /* This field is a hack inserted by MCS to empty structures */
11477 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11478 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11479 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11480 &align, TRUE, klass->unicode);
11481 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11482 min_align = MAX (align, min_align);
11483 info->fields [j].offset = info->native_size;
11484 info->fields [j].offset += align - 1;
11485 info->fields [j].offset &= ~(align - 1);
11486 info->native_size = info->fields [j].offset + size;
11488 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11489 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11490 &align, TRUE, klass->unicode);
11491 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11492 min_align = MAX (align, min_align);
11493 info->fields [j].offset = field->offset - sizeof (MonoObject);
11494 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11500 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11501 info->native_size = MAX (native_size, info->native_size);
11504 if (info->native_size & (min_align - 1)) {
11505 info->native_size += min_align - 1;
11506 info->native_size &= ~(min_align - 1);
11509 info->min_align = min_align;
11511 /* Update the class's blittable info, if the layouts don't match */
11512 if (info->native_size != mono_class_value_size (klass, NULL))
11513 klass->blittable = FALSE;
11515 /* If this is an array type, ensure that we have element info */
11516 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11517 mono_marshal_load_type_info (klass->element_class);
11520 loads_list = TlsGetValue (load_type_info_tls_id);
11521 loads_list = g_slist_remove (loads_list, klass);
11522 TlsSetValue (load_type_info_tls_id, loads_list);
11524 /*We do double-checking locking on marshal_info */
11525 mono_memory_barrier ();
11527 klass->marshal_info = info;
11529 mono_loader_unlock ();
11531 return klass->marshal_info;
11535 * mono_class_native_size:
11538 * Returns: the native size of an object instance (when marshaled
11539 * to unmanaged code)
11542 mono_class_native_size (MonoClass *klass, guint32 *align)
11544 if (!klass->marshal_info) {
11545 if (mono_marshal_is_loading_type_info (klass)) {
11550 mono_marshal_load_type_info (klass);
11555 *align = klass->marshal_info->min_align;
11557 return klass->marshal_info->native_size;
11560 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11561 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11562 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11563 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11566 * mono_type_native_stack_size:
11567 * @t: the type to return the size it uses on the stack
11569 * Returns: the number of bytes required to hold an instance of this
11570 * type on the native stack
11573 mono_type_native_stack_size (MonoType *t, guint32 *align)
11577 g_assert (t != NULL);
11583 *align = sizeof (gpointer);
11584 return sizeof (gpointer);
11588 case MONO_TYPE_BOOLEAN:
11589 case MONO_TYPE_CHAR:
11600 case MONO_TYPE_STRING:
11601 case MONO_TYPE_OBJECT:
11602 case MONO_TYPE_CLASS:
11603 case MONO_TYPE_SZARRAY:
11604 case MONO_TYPE_PTR:
11605 case MONO_TYPE_FNPTR:
11606 case MONO_TYPE_ARRAY:
11607 *align = sizeof (gpointer);
11608 return sizeof (gpointer);
11613 *align = ALIGNMENT (gdouble);
11617 *align = ALIGNMENT (glong);
11619 case MONO_TYPE_GENERICINST:
11620 if (!mono_type_generic_inst_is_valuetype (t)) {
11621 *align = sizeof (gpointer);
11622 return sizeof (gpointer);
11625 case MONO_TYPE_TYPEDBYREF:
11626 case MONO_TYPE_VALUETYPE: {
11628 MonoClass *klass = mono_class_from_mono_type (t);
11630 if (klass->enumtype)
11631 return mono_type_native_stack_size (klass->enum_basetype, align);
11633 size = mono_class_native_size (klass, align);
11634 *align = *align + 3;
11644 g_error ("type 0x%02x unknown", t->type);
11650 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11651 gboolean as_field, gboolean unicode)
11653 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11656 switch (native_type) {
11657 case MONO_NATIVE_BOOLEAN:
11660 case MONO_NATIVE_I1:
11661 case MONO_NATIVE_U1:
11664 case MONO_NATIVE_I2:
11665 case MONO_NATIVE_U2:
11666 case MONO_NATIVE_VARIANTBOOL:
11669 case MONO_NATIVE_I4:
11670 case MONO_NATIVE_U4:
11671 case MONO_NATIVE_ERROR:
11674 case MONO_NATIVE_I8:
11675 case MONO_NATIVE_U8:
11676 *align = ALIGNMENT(guint64);
11678 case MONO_NATIVE_R4:
11681 case MONO_NATIVE_R8:
11682 *align = ALIGNMENT(double);
11684 case MONO_NATIVE_INT:
11685 case MONO_NATIVE_UINT:
11686 case MONO_NATIVE_LPSTR:
11687 case MONO_NATIVE_LPWSTR:
11688 case MONO_NATIVE_LPTSTR:
11689 case MONO_NATIVE_BSTR:
11690 case MONO_NATIVE_ANSIBSTR:
11691 case MONO_NATIVE_TBSTR:
11692 case MONO_NATIVE_LPARRAY:
11693 case MONO_NATIVE_SAFEARRAY:
11694 case MONO_NATIVE_IUNKNOWN:
11695 case MONO_NATIVE_IDISPATCH:
11696 case MONO_NATIVE_INTERFACE:
11697 case MONO_NATIVE_ASANY:
11698 case MONO_NATIVE_FUNC:
11699 case MONO_NATIVE_LPSTRUCT:
11700 *align = ALIGNMENT(gpointer);
11701 return sizeof (gpointer);
11702 case MONO_NATIVE_STRUCT:
11703 klass = mono_class_from_mono_type (type);
11704 if (klass == mono_defaults.object_class &&
11705 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11709 return mono_class_native_size (klass, align);
11710 case MONO_NATIVE_BYVALTSTR: {
11711 int esize = unicode ? 2: 1;
11714 return mspec->data.array_data.num_elem * esize;
11716 case MONO_NATIVE_BYVALARRAY: {
11717 // FIXME: Have to consider ArraySubType
11719 klass = mono_class_from_mono_type (type);
11720 if (klass->element_class == mono_defaults.char_class) {
11721 esize = unicode ? 2 : 1;
11724 esize = mono_class_native_size (klass->element_class, align);
11727 return mspec->data.array_data.num_elem * esize;
11729 case MONO_NATIVE_CUSTOM:
11730 *align = sizeof (gpointer);
11731 return sizeof (gpointer);
11733 case MONO_NATIVE_CURRENCY:
11734 case MONO_NATIVE_VBBYREFSTR:
11736 g_error ("native type %02x not implemented", native_type);
11739 g_assert_not_reached ();
11744 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11752 t = &o->vtable->klass->byval_arg;
11756 case MONO_TYPE_PTR:
11759 case MONO_TYPE_BOOLEAN:
11762 case MONO_TYPE_CHAR:
11767 return mono_object_unbox (o);
11769 case MONO_TYPE_STRING:
11770 switch (string_encoding) {
11771 case MONO_NATIVE_LPWSTR:
11772 return mono_string_to_utf16 ((MonoString*)o);
11774 case MONO_NATIVE_LPSTR:
11775 return mono_string_to_lpstr ((MonoString*)o);
11778 g_warning ("marshaling conversion %d not implemented", string_encoding);
11779 g_assert_not_reached ();
11782 case MONO_TYPE_CLASS:
11783 case MONO_TYPE_VALUETYPE: {
11784 MonoMethod *method;
11787 MonoBoolean delete_old = FALSE;
11789 klass = t->data.klass;
11791 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11794 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11795 klass->blittable || klass->enumtype))
11796 return mono_object_unbox (o);
11798 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11800 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11801 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11805 pa [2] = &delete_old;
11807 mono_runtime_invoke (method, NULL, pa, NULL);
11814 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11820 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11828 t = &o->vtable->klass->byval_arg;
11830 case MONO_TYPE_STRING:
11831 switch (string_encoding) {
11832 case MONO_NATIVE_LPWSTR:
11833 case MONO_NATIVE_LPSTR:
11834 mono_marshal_free (ptr);
11837 g_warning ("marshaling conversion %d not implemented", string_encoding);
11838 g_assert_not_reached ();
11841 case MONO_TYPE_CLASS:
11842 case MONO_TYPE_VALUETYPE: {
11843 klass = t->data.klass;
11845 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11846 klass->blittable || klass->enumtype))
11849 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11850 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11856 mono_runtime_invoke (method, NULL, pa, NULL);
11859 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11860 mono_struct_delete_old (klass, ptr);
11863 mono_marshal_free (ptr);
11872 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11874 MonoMethodSignature *sig, *csig;
11875 MonoMethodBuilder *mb;
11879 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11880 mb->method->slot = -1;
11882 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11883 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11885 sig = mono_method_signature (method);
11886 csig = signature_dup (method->klass->image, sig);
11887 csig->generic_param_count = 0;
11889 mono_mb_emit_ldarg (mb, 0);
11890 for (i = 0; i < csig->param_count; i++)
11891 mono_mb_emit_ldarg (mb, i + 1);
11892 mono_mb_emit_managed_call (mb, method, NULL);
11893 mono_mb_emit_byte (mb, CEE_RET);
11895 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11897 /* We can corlib internal methods */
11898 res->skip_visibility = TRUE;
11906 * The mono_win32_compat_* functions are implementations of inline
11907 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11908 * although not exported by kernel32.
11910 * We map the appropiate kernel32 entries to these functions using
11911 * dllmaps declared in the global etc/mono/config.
11915 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11917 if (!dest || !source)
11920 memcpy (dest, source, length);
11924 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11926 memset (dest, fill, length);
11930 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11932 if (!dest || !source)
11935 memmove (dest, source, length);
11939 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11941 memset (dest, 0, length);
11944 /* Put COM Interop related stuff here */
11946 #ifndef DISABLE_COM
11949 * cominterop_get_ccw_object:
11950 * @ccw_entry: a pointer to the CCWEntry
11951 * @verify: verify ccw_entry is in fact a ccw
11953 * Returns: the corresponding object for the CCW
11956 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11958 MonoCCW *ccw = NULL;
11960 /* no CCW's exist yet */
11961 if (!ccw_interface_hash)
11965 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11968 ccw = ccw_entry->ccw;
11972 return mono_gchandle_get_target (ccw->gc_handle);
11978 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11980 MonoMethodSignature *sig, *csig;
11981 sig = mono_method_signature (method);
11982 /* we copy the signature, so that we can modify it */
11983 /* FIXME: which to use? */
11984 csig = signature_dup (method->klass->image, sig);
11985 /* csig = mono_metadata_signature_dup (sig); */
11987 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11988 #ifdef PLATFORM_WIN32
11989 csig->call_convention = MONO_CALL_STDCALL;
11991 csig->call_convention = MONO_CALL_C;
11996 m->image = method->klass->image;
12004 * cominterop_get_ccw:
12005 * @object: a pointer to the object
12006 * @itf: interface type needed
12008 * Returns: a value indicating if the object is a
12009 * Runtime Callable Wrapper (RCW) for a COM object
12012 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
12015 MonoCCW *ccw = NULL;
12016 MonoCCWInterface* ccw_entry = NULL;
12017 gpointer *vtable = NULL;
12018 static gpointer iunknown[3] = {NULL, NULL, NULL};
12019 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
12020 MonoClass* iface = NULL;
12021 MonoClass* klass = NULL;
12022 EmitMarshalContext m;
12023 int start_slot = 3;
12024 int method_count = 0;
12025 GList *ccw_list, *ccw_list_item;
12026 MonoCustomAttrInfo *cinfo = NULL;
12031 klass = mono_object_get_class (object);
12034 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12035 if (!ccw_interface_hash)
12036 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12038 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12040 ccw_list_item = ccw_list;
12041 while (ccw_list_item) {
12042 MonoCCW* ccw_iter = ccw_list_item->data;
12043 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
12047 ccw_list_item = g_list_next(ccw_list_item);
12050 if (!iunknown [0]) {
12051 iunknown [0] = cominterop_ccw_queryinterface;
12052 iunknown [1] = cominterop_ccw_addref;
12053 iunknown [2] = cominterop_ccw_release;
12056 if (!idispatch [0]) {
12057 idispatch [0] = cominterop_ccw_get_type_info_count;
12058 idispatch [1] = cominterop_ccw_get_type_info;
12059 idispatch [2] = cominterop_ccw_get_ids_of_names;
12060 idispatch [3] = cominterop_ccw_invoke;
12064 ccw = g_new0 (MonoCCW, 1);
12065 #ifdef PLATFORM_WIN32
12066 ccw->free_marshaler = 0;
12068 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12069 ccw->ref_count = 0;
12070 /* just alloc a weak handle until we are addref'd*/
12071 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
12074 ccw_list = g_list_alloc ();
12075 ccw_list->data = ccw;
12078 ccw_list = g_list_append (ccw_list, ccw);
12079 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
12080 /* register for finalization to clean up ccw */
12081 mono_object_register_finalizer (object);
12084 cinfo = mono_custom_attrs_from_class (itf);
12086 static MonoClass* coclass_attribute = NULL;
12087 if (!coclass_attribute)
12088 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
12089 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
12090 g_assert(itf->interface_count && itf->interfaces[0]);
12091 itf = itf->interfaces[0];
12093 if (!cinfo->cached)
12094 mono_custom_attrs_free (cinfo);
12098 if (iface == mono_defaults.iunknown_class) {
12101 else if (iface == mono_defaults.idispatch_class) {
12105 method_count += iface->method.count;
12106 start_slot = cominterop_get_com_slot_begin (iface);
12110 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
12113 int vtable_index = method_count-1+start_slot;
12114 mono_loader_lock ();
12115 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
12116 mono_loader_unlock ();
12117 memcpy (vtable, iunknown, sizeof (iunknown));
12118 if (start_slot == 7)
12119 memcpy (vtable+3, idispatch, sizeof (idispatch));
12122 for (i = iface->method.count-1; i >= 0;i--) {
12123 int param_index = 0;
12124 MonoMethodBuilder *mb;
12125 MonoMarshalSpec ** mspecs;
12126 MonoMethod *wrapper_method, *adjust_method;
12127 MonoMethod *method = iface->methods [i];
12128 MonoMethodSignature* sig_adjusted;
12129 MonoMethodSignature* sig = mono_method_signature (method);
12130 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12133 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12134 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
12135 sig_adjusted = mono_method_signature (adjust_method);
12137 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
12138 mono_method_get_marshal_info (method, mspecs);
12141 /* move managed args up one */
12142 for (param_index = sig->param_count; param_index >= 1; param_index--) {
12143 int mspec_index = param_index+1;
12144 mspecs [mspec_index] = mspecs [param_index];
12146 if (mspecs[mspec_index] == NULL) {
12147 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
12148 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12149 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
12151 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
12152 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12153 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
12155 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
12156 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12157 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
12162 /* first arg is IntPtr for interface */
12165 /* move return spec to last param */
12166 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
12167 if (mspecs [0] == NULL) {
12168 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
12169 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12170 mspecs[0]->native = MONO_NATIVE_STRUCT;
12172 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
12173 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12174 mspecs[0]->native = MONO_NATIVE_BSTR;
12176 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
12177 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12178 mspecs[0]->native = MONO_NATIVE_INTERFACE;
12182 mspecs [sig_adjusted->param_count] = mspecs [0];
12186 cominterop_setup_marshal_context (&m, adjust_method);
12188 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
12189 mono_loader_lock ();
12190 mono_marshal_lock ();
12191 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
12192 mono_marshal_unlock ();
12193 mono_loader_unlock ();
12195 /* skip visiblity since we call internal methods */
12196 wrapper_method->skip_visibility = TRUE;
12198 vtable [vtable_index--] = mono_compile_method (wrapper_method);
12201 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
12202 if (mspecs [param_index])
12203 mono_metadata_free_marshal_spec (mspecs [param_index]);
12207 ccw_entry = g_new0 (MonoCCWInterface, 1);
12208 ccw_entry->ccw = ccw;
12209 ccw_entry->vtable = vtable;
12210 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
12211 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
12218 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
12226 * mono_marshal_free_ccw:
12227 * @object: the mono object
12229 * Returns: whether the object had a CCW
12232 mono_marshal_free_ccw (MonoObject* object)
12234 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
12235 /* no ccw's were created */
12236 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
12239 /* need to cache orig list address to remove from hash_table if empty */
12240 mono_cominterop_lock ();
12241 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12242 mono_cominterop_unlock ();
12247 ccw_list_item = ccw_list;
12248 while (ccw_list_item) {
12249 MonoCCW* ccw_iter = ccw_list_item->data;
12250 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
12252 /* Looks like the GC NULLs the weakref handle target before running the
12253 * finalizer. So if we get a NULL target, destroy the CCW as well. */
12254 if (!handle_target || handle_target == object) {
12255 /* remove all interfaces */
12256 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
12257 g_hash_table_destroy (ccw_iter->vtable_hash);
12259 /* get next before we delete */
12260 ccw_list_item = g_list_next(ccw_list_item);
12262 /* remove ccw from list */
12263 ccw_list = g_list_remove (ccw_list, ccw_iter);
12267 ccw_list_item = g_list_next(ccw_list_item);
12270 /* if list is empty remove original address from hash */
12271 if (g_list_length (ccw_list) == 0)
12272 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12279 * cominterop_get_managed_wrapper_adjusted:
12280 * @method: managed COM Interop method
12282 * Returns: the generated method to call with signature matching
12283 * the unmanaged COM Method signature
12285 static MonoMethod *
12286 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
12288 static MonoMethod *get_hr_for_exception = NULL;
12289 MonoMethod *res = NULL;
12290 MonoMethodBuilder *mb;
12291 MonoMarshalSpec **mspecs;
12292 MonoMethodSignature *sig, *sig_native;
12293 MonoExceptionClause *main_clause = NULL;
12297 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12299 if (!get_hr_for_exception)
12300 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
12302 sig = mono_method_signature (method);
12304 /* create unmanaged wrapper */
12305 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
12307 sig_native = cominterop_method_signature (method);
12309 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
12311 mono_method_get_marshal_info (method, mspecs);
12313 /* move managed args up one */
12314 for (i = sig->param_count; i >= 1; i--)
12315 mspecs [i+1] = mspecs [i];
12317 /* first arg is IntPtr for interface */
12320 /* move return spec to last param */
12321 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12322 mspecs [sig_native->param_count] = mspecs [0];
12326 if (!preserve_sig) {
12327 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
12330 main_clause = g_new0 (MonoExceptionClause, 1);
12331 main_clause->try_offset = mono_mb_get_label (mb);
12334 /* load last param to store result if not preserve_sig and not void */
12335 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12336 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
12338 /* the CCW -> object conversion */
12339 mono_mb_emit_ldarg (mb, 0);
12340 mono_mb_emit_icon (mb, FALSE);
12341 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
12343 for (i = 0; i < sig->param_count; i++)
12344 mono_mb_emit_ldarg (mb, i+1);
12346 mono_mb_emit_managed_call (mb, method, NULL);
12348 if (!preserve_sig) {
12349 /* store result if not preserve_sig and we have one */
12350 if (!MONO_TYPE_IS_VOID (sig->ret))
12351 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
12353 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12355 /* Main exception catch */
12356 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12357 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
12358 main_clause->data.catch_class = mono_defaults.object_class;
12361 main_clause->handler_offset = mono_mb_get_label (mb);
12362 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
12363 mono_mb_emit_stloc (mb, hr);
12364 mono_mb_emit_branch (mb, CEE_LEAVE);
12365 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
12368 mono_mb_set_clauses (mb, 1, main_clause);
12370 mono_mb_patch_branch (mb, pos_leave);
12372 mono_mb_emit_ldloc (mb, hr);
12375 mono_mb_emit_byte (mb, CEE_RET);
12377 mono_loader_lock ();
12378 mono_marshal_lock ();
12379 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
12380 mono_marshal_unlock ();
12381 mono_loader_unlock ();
12385 for (i = sig_native->param_count; i >= 0; i--)
12387 mono_metadata_free_marshal_spec (mspecs [i]);
12394 * cominterop_mono_string_to_guid:
12396 * Converts the standard string representation of a GUID
12397 * to a 16 byte Microsoft GUID.
12400 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
12401 gunichar2 * chars = mono_string_chars (string);
12403 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
12405 for (i = 0; i < sizeof(indexes); i++)
12406 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
12410 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
12412 guint8 klass_guid [16];
12413 if (cominterop_class_guid (klass, klass_guid))
12414 return !memcmp (guid, klass_guid, sizeof (klass_guid));
12419 cominterop_ccw_addref (MonoCCWInterface* ccwe)
12421 gint32 ref_count = 0;
12422 MonoCCW* ccw = ccwe->ccw;
12424 g_assert (ccw->gc_handle);
12425 g_assert (ccw->ref_count >= 0);
12426 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
12427 if (ref_count == 1) {
12428 guint32 oldhandle = ccw->gc_handle;
12429 g_assert (oldhandle);
12430 /* since we now have a ref count, alloc a strong handle*/
12431 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12432 mono_gchandle_free (oldhandle);
12438 cominterop_ccw_release (MonoCCWInterface* ccwe)
12440 gint32 ref_count = 0;
12441 MonoCCW* ccw = ccwe->ccw;
12443 g_assert (ccw->ref_count > 0);
12444 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12445 if (ref_count == 0) {
12446 /* allow gc of object */
12447 guint32 oldhandle = ccw->gc_handle;
12448 g_assert (oldhandle);
12449 #ifdef PLATFORM_WIN32
12450 if (ccw->free_marshaler)
12451 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (ccw->free_marshaler);
12453 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12454 mono_gchandle_free (oldhandle);
12459 #ifdef PLATFORM_WIN32
12460 static const IID MONO_IID_IMarshal = {0x3, 0x0, 0x0, {0xC0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x46}};
12463 #ifdef PLATFORM_WIN32
12464 /* All ccw objects are free threaded */
12466 cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv)
12468 #ifdef PLATFORM_WIN32
12469 if (!ccw->free_marshaler) {
12472 tunk = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12473 /* remember to addref on QI */
12474 cominterop_ccw_addref (tunk);
12475 ret = CoCreateFreeThreadedMarshaler (tunk, (LPUNKNOWN*)&ccw->free_marshaler);
12476 cominterop_ccw_release(tunk);
12479 if (!ccw->free_marshaler)
12480 return MONO_E_NOINTERFACE;
12482 return ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (ccw->free_marshaler, (IID*)&MONO_IID_IMarshal, ppv);
12484 return MONO_E_NOINTERFACE;
12490 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12493 MonoClass *itf = NULL;
12495 MonoCCW* ccw = ccwe->ccw;
12496 MonoClass* klass = NULL;
12497 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12500 klass = mono_object_class (object);
12505 if (!mono_domain_get ())
12506 mono_thread_attach (mono_get_root_domain ());
12508 /* handle IUnknown special */
12509 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12510 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12511 /* remember to addref on QI */
12512 cominterop_ccw_addref (*ppv);
12516 /* handle IDispatch special */
12517 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12518 if (!cominterop_can_support_dispatch (klass))
12519 return MONO_E_NOINTERFACE;
12521 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12522 /* remember to addref on QI */
12523 cominterop_ccw_addref (*ppv);
12527 #ifdef PLATFORM_WIN32
12528 /* handle IMarshal special */
12529 if (0 == memcmp (riid, &MONO_IID_IMarshal, sizeof (IID))) {
12530 return cominterop_ccw_getfreethreadedmarshaler (ccw, object, ppv);
12534 ifaces = mono_class_get_implemented_interfaces (klass);
12536 for (i = 0; i < ifaces->len; ++i) {
12537 MonoClass *ic = NULL;
12538 ic = g_ptr_array_index (ifaces, i);
12539 if (cominterop_class_guid_equal (riid, ic)) {
12544 g_ptr_array_free (ifaces, TRUE);
12547 *ppv = cominterop_get_ccw (object, itf);
12548 /* remember to addref on QI */
12549 cominterop_ccw_addref (*ppv);
12553 return MONO_E_NOINTERFACE;
12557 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12559 return MONO_E_NOTIMPL;
12563 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12565 return MONO_E_NOTIMPL;
12569 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12570 gunichar2** rgszNames, guint32 cNames,
12571 guint32 lcid, gint32 *rgDispId)
12573 return MONO_E_NOTIMPL;
12577 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12578 gpointer riid, guint32 lcid,
12579 guint16 wFlags, gpointer pDispParams,
12580 gpointer pVarResult, gpointer pExcepInfo,
12583 return MONO_E_NOTIMPL;
12586 #else /* DISABLE_COM */
12589 mono_marshal_free_ccw (MonoObject* object)
12594 #endif /* DISABLE_COM */
12597 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12602 for (i = 0; i < len; ++i)
12606 g_assert (i < len);
12609 while (byte && !(byte & 1))
12611 g_assert (byte == 1);
12614 *bitmask = buf [i];
12618 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12620 MonoMethodBuilder *mb;
12621 MonoMethodSignature *sig, *csig;
12622 MonoExceptionClause *clause;
12627 int i, param_count, sig_size, pos_leave;
12631 klass = method->klass;
12632 image = method->klass->image;
12633 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12635 if ((res = mono_marshal_find_in_cache (cache, method)))
12638 sig = mono_method_signature (method);
12639 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12641 /* add "this" and exception param */
12642 param_count = sig->param_count + sig->hasthis + 1;
12644 /* dup & extend signature */
12645 csig = mono_metadata_signature_alloc (image, param_count);
12646 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12647 memcpy (csig, sig, sig_size);
12648 csig->param_count = param_count;
12651 csig->call_convention = MONO_CALL_DEFAULT;
12653 if (sig->hasthis) {
12655 csig->params [0] = &klass->byval_arg;
12656 /* move params up by one */
12657 for (i = 0; i < sig->param_count; i++)
12658 csig->params [i + 1] = sig->params [i];
12661 /* setup exception param as byref+[out] */
12662 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12663 &mono_defaults.exception_class->byval_arg);
12664 csig->params [param_count - 1]->byref = 1;
12665 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12667 /* convert struct return to object */
12668 if (MONO_TYPE_ISSTRUCT (sig->ret))
12669 csig->ret = &mono_defaults.object_class->byval_arg;
12671 /* local 0 (temp for exception object) */
12672 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12674 /* local 1 (temp for result) */
12675 if (!MONO_TYPE_IS_VOID (sig->ret))
12676 mono_mb_add_local (mb, sig->ret);
12678 /* clear exception arg */
12679 mono_mb_emit_ldarg (mb, param_count - 1);
12680 mono_mb_emit_byte (mb, CEE_LDNULL);
12681 mono_mb_emit_byte (mb, CEE_STIND_REF);
12684 mono_loader_lock ();
12685 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12686 mono_loader_unlock ();
12687 clause->try_offset = mono_mb_get_label (mb);
12689 /* push method's args */
12690 for (i = 0; i < param_count - 1; i++) {
12694 mono_mb_emit_ldarg (mb, i);
12696 /* get the byval type of the param */
12697 klass = mono_class_from_mono_type (csig->params [i]);
12698 type = &klass->byval_arg;
12700 /* unbox struct args */
12701 if (MONO_TYPE_ISSTRUCT (type)) {
12702 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12704 /* byref args & and the "this" arg must remain a ptr.
12705 Otherwise make a copy of the value type */
12706 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12707 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12709 csig->params [i] = &mono_defaults.object_class->byval_arg;
12714 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12715 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12717 mono_mb_emit_op (mb, CEE_CALL, method);
12719 /* save result at local 1 */
12720 if (!MONO_TYPE_IS_VOID (sig->ret))
12721 mono_mb_emit_stloc (mb, 1);
12723 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12726 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12727 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12728 clause->data.catch_class = mono_defaults.object_class;
12730 clause->handler_offset = mono_mb_get_label (mb);
12732 /* store exception at local 0 */
12733 mono_mb_emit_stloc (mb, 0);
12734 mono_mb_emit_ldarg (mb, param_count - 1);
12735 mono_mb_emit_ldloc (mb, 0);
12736 mono_mb_emit_byte (mb, CEE_STIND_REF);
12737 mono_mb_emit_branch (mb, CEE_LEAVE);
12739 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12741 mono_mb_set_clauses (mb, 1, clause);
12743 mono_mb_patch_branch (mb, pos_leave);
12746 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12747 mono_mb_emit_ldloc (mb, 1);
12749 /* box the return value */
12750 if (MONO_TYPE_ISSTRUCT (sig->ret))
12751 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12754 mono_mb_emit_byte (mb, CEE_RET);
12756 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);