2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
20 #include "metadata/marshal.h"
21 #include "metadata/method-builder.h"
22 #include "metadata/tabledefs.h"
23 #include "metadata/exception.h"
24 #include "metadata/appdomain.h"
25 #include "mono/metadata/debug-helpers.h"
26 #include "mono/metadata/threadpool.h"
27 #include "mono/metadata/threads.h"
28 #include "mono/metadata/monitor.h"
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/domain-internals.h"
31 #include "mono/metadata/gc-internal.h"
32 #include "mono/metadata/threads-types.h"
33 #include "mono/metadata/string-icalls.h"
34 #include "mono/metadata/attrdefs.h"
35 #include "mono/metadata/gc-internal.h"
36 #include "mono/utils/mono-counters.h"
40 /* #define DEBUG_RUNTIME_CODE */
42 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
46 MONO_MARSHAL_NONE, /* No marshalling needed */
47 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
48 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
49 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
50 } MonoXDomainMarshalType;
57 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
60 #include "mono/cil/opcode.def"
65 struct _MonoRemotingMethods {
67 MonoMethod *invoke_with_check;
68 MonoMethod *xdomain_invoke;
69 MonoMethod *xdomain_dispatch;
72 typedef struct _MonoRemotingMethods MonoRemotingMethods;
75 * This mutex protects the various marshalling related caches in MonoImage
76 * and a few other data structures static to this file.
77 * Note that when this lock is held it is not possible to take other runtime
78 * locks like the loader lock.
80 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
81 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
82 static CRITICAL_SECTION marshal_mutex;
84 /* This mutex protects the various cominterop related caches in MonoImage */
85 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
86 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
87 static CRITICAL_SECTION cominterop_mutex;
89 static guint32 last_error_tls_id;
91 static guint32 load_type_info_tls_id;
94 delegate_hash_table_add (MonoDelegate *d);
97 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
100 mono_struct_delete_old (MonoClass *klass, char *ptr);
103 mono_marshal_string_to_utf16 (MonoString *s);
106 mono_marshal_string_to_utf16_copy (MonoString *s);
109 mono_string_to_lpstr (MonoString *string_obj);
112 mono_string_from_bstr (gpointer bstr);
115 mono_free_bstr (gpointer bstr);
117 static MonoStringBuilder *
118 mono_string_utf8_to_builder2 (char *text);
121 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
124 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
127 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
129 static MonoAsyncResult *
130 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
133 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_marshal_xdomain_copy_value (MonoObject *val);
139 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
142 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
145 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
148 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
150 static MonoReflectionType *
151 type_from_handle (MonoType *handle);
154 mono_marshal_set_last_error_windows (int error);
157 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions);
159 static void init_safe_handle (void);
161 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
162 static MonoMethod *sh_dangerous_add_ref;
163 static MonoMethod *sh_dangerous_release;
169 sh_dangerous_add_ref = mono_class_get_method_from_name (
170 mono_defaults.safehandle_class, "DangerousAddRef", 1);
171 sh_dangerous_release = mono_class_get_method_from_name (
172 mono_defaults.safehandle_class, "DangerousRelease", 0);
176 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
178 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
180 mono_register_jit_icall (func, name, sig, save);
183 static MonoMethodSignature*
184 signature_dup (MonoImage *image, MonoMethodSignature *sig)
186 MonoMethodSignature *res;
189 res = mono_metadata_signature_alloc (image, sig->param_count);
190 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
191 memcpy (res, sig, sigsize);
197 mono_signature_no_pinvoke (MonoMethod *method)
199 MonoMethodSignature *sig = mono_method_signature (method);
201 sig = signature_dup (method->klass->image, sig);
202 sig->pinvoke = FALSE;
208 /* Begin COM Interop related stuff until seperate file */
211 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
212 #ifdef PLATFORM_WIN32
213 #define STDCALL __stdcall
218 /* Upon creation of a CCW, only allocate a weak handle and set the
219 * reference count to 0. If the unmanaged client code decides to addref and
220 * hold onto the CCW, I then allocate a strong handle. Once the reference count
221 * goes back to 0, convert back to a weak handle.
226 GHashTable* vtable_hash;
227 #ifdef PLATFORM_WIN32
228 gpointer free_marshaler;
232 /* This type is the actual pointer passed to unmanaged code
233 * to represent a COM interface.
243 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
245 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
247 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
250 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
252 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
254 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
255 gunichar2** rgszNames, guint32 cNames,
256 guint32 lcid, gint32 *rgDispId);
258 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
259 gpointer riid, guint32 lcid,
260 guint16 wFlags, gpointer pDispParams,
261 gpointer pVarResult, gpointer pExcepInfo,
265 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
268 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
271 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
274 * cominterop_method_signature:
277 * Returns: the corresponding unmanaged method signature for a managed COM
280 static MonoMethodSignature*
281 cominterop_method_signature (MonoMethod* method)
283 MonoMethodSignature *res;
284 MonoImage *image = method->klass->image;
285 MonoMethodSignature *sig = mono_method_signature (method);
286 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
289 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
291 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
294 res = mono_metadata_signature_alloc (image, param_count);
295 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
296 memcpy (res, sig, sigsize);
298 // now move args forward one
299 for (i = sig->param_count-1; i >= 0; i--)
300 res->params[i+1] = sig->params[i];
302 // first arg is interface pointer
303 res->params[0] = &mono_defaults.int_class->byval_arg;
309 // last arg is return type
310 if (!MONO_TYPE_IS_VOID (sig->ret)) {
311 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
312 res->params[param_count-1]->byref = 1;
313 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
316 // return type is always int32 (HRESULT)
317 res->ret = &mono_defaults.int32_class->byval_arg;
321 res->pinvoke = FALSE;
327 res->param_count = param_count;
329 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
330 #ifdef PLATFORM_WIN32
331 res->call_convention = MONO_CALL_STDCALL;
333 res->call_convention = MONO_CALL_C;
340 * cominterop_get_function_pointer:
341 * @itf: a pointer to the COM interface
342 * @slot: the vtable slot of the method pointer to return
344 * Returns: the unmanaged vtable function pointer from the interface
347 cominterop_get_function_pointer (gpointer itf, int slot)
350 func = *((*(gpointer**)itf)+slot);
355 * cominterop_object_is_com_object:
356 * @obj: a pointer to the object
358 * Returns: a value indicating if the object is a
359 * Runtime Callable Wrapper (RCW) for a COM object
362 cominterop_object_is_rcw (MonoObject *obj)
364 MonoClass *klass = NULL;
365 MonoRealProxy* real_proxy = NULL;
368 klass = mono_object_class (obj);
369 if (klass != mono_defaults.transparent_proxy_class)
372 real_proxy = ((MonoTransparentProxy*)obj)->rp;
376 klass = mono_object_class (real_proxy);
377 return (klass && klass == mono_defaults.com_interop_proxy_class);
381 cominterop_get_com_slot_begin (MonoClass* klass)
383 static MonoClass *interface_type_attribute = NULL;
384 MonoCustomAttrInfo *cinfo = NULL;
385 MonoInterfaceTypeAttribute* itf_attr = NULL;
387 if (!interface_type_attribute)
388 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
389 cinfo = mono_custom_attrs_from_class (klass);
391 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
393 mono_custom_attrs_free (cinfo);
396 if (itf_attr && itf_attr->intType == 1)
397 return 3; /* 3 methods in IUnknown*/
399 return 7; /* 7 methods in IDispatch*/
403 * cominterop_get_method_interface:
404 * @method: method being called
406 * Returns: the MonoClass* representing the interface on which
407 * the method is defined.
410 cominterop_get_method_interface (MonoMethod* method)
412 MonoClass *ic = method->klass;
414 /* if method is on a class, we need to look up interface method exists on */
415 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
416 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
419 for (i = 0; i < ifaces->len; ++i) {
421 ic = g_ptr_array_index (ifaces, i);
422 offset = mono_class_interface_offset (method->klass, ic);
423 if (method->slot >= offset && method->slot < offset + ic->method.count)
427 g_ptr_array_free (ifaces, TRUE);
432 g_assert (MONO_CLASS_IS_INTERFACE (ic));
438 * cominterop_get_com_slot_for_method:
441 * Returns: the method's slot in the COM interface vtable
444 cominterop_get_com_slot_for_method (MonoMethod* method)
446 guint32 slot = method->slot;
447 MonoClass *ic = method->klass;
449 /* if method is on a class, we need to look up interface method exists on */
450 if (!MONO_CLASS_IS_INTERFACE(ic)) {
452 ic = cominterop_get_method_interface (method);
453 offset = mono_class_interface_offset (method->klass, ic);
454 g_assert(offset >= 0);
459 g_assert (MONO_CLASS_IS_INTERFACE (ic));
461 return slot + cominterop_get_com_slot_begin (ic);
466 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
469 cominterop_class_guid (MonoClass* klass, guint8* guid)
471 static MonoClass *GuidAttribute = NULL;
472 MonoCustomAttrInfo *cinfo;
474 /* Handle the GuidAttribute */
476 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
478 cinfo = mono_custom_attrs_from_class (klass);
480 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
485 mono_custom_attrs_free (cinfo);
487 cominterop_mono_string_to_guid (attr->guid, guid);
494 cominterop_com_visible (MonoClass* klass)
496 static MonoClass *ComVisibleAttribute = NULL;
497 MonoCustomAttrInfo *cinfo;
499 /* Handle the ComVisibleAttribute */
500 if (!ComVisibleAttribute)
501 ComVisibleAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ComVisibleAttribute");
503 cinfo = mono_custom_attrs_from_class (klass);
505 MonoReflectionComVisibleAttribute *attr = (MonoReflectionComVisibleAttribute*)mono_custom_attrs_get_attr (cinfo, ComVisibleAttribute);
510 mono_custom_attrs_free (cinfo);
518 static void cominterop_raise_hr_exception (int hr)
520 static MonoMethod* throw_exception_for_hr = NULL;
522 void* params[1] = {&hr};
523 if (!throw_exception_for_hr)
524 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
525 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
526 mono_raise_exception (ex);
530 * cominterop_get_interface:
531 * @obj: managed wrapper object containing COM object
532 * @ic: interface type to retrieve for COM object
534 * Returns: the COM interface requested
537 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
542 g_assert (MONO_CLASS_IS_INTERFACE (ic));
544 mono_cominterop_lock ();
546 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
547 mono_cominterop_unlock ();
551 int found = cominterop_class_guid (ic, iid);
554 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
555 if (hr < 0 && throw_exception) {
556 cominterop_raise_hr_exception (hr);
559 if (hr >= 0 && itf) {
560 mono_cominterop_lock ();
562 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
563 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
564 mono_cominterop_unlock ();
575 cominterop_get_hresult_for_exception (MonoException* exc)
581 #endif /* DISABLE_COM */
584 mono_marshal_init (void)
586 static gboolean module_initialized = FALSE;
588 if (!module_initialized) {
589 char* com_provider_env = NULL;
590 module_initialized = TRUE;
591 InitializeCriticalSection (&marshal_mutex);
592 InitializeCriticalSection (&cominterop_mutex);
593 last_error_tls_id = TlsAlloc ();
594 load_type_info_tls_id = TlsAlloc ();
596 com_provider_env = getenv ("MONO_COM");
597 if (com_provider_env && !strcmp(com_provider_env, "MS"))
598 com_provider = MONO_COM_MS;
600 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
601 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
602 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
603 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
604 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
605 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
606 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
607 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
608 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
609 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
610 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
611 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
612 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
613 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
614 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
615 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
616 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
617 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
618 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
619 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
620 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
621 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
622 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
623 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
624 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
625 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
626 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
627 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
628 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
629 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
630 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
631 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
632 register_icall (g_free, "g_free", "void ptr", FALSE);
633 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
634 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
635 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
636 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
637 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
638 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
639 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
640 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
641 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
642 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
643 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
644 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
645 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
646 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
647 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
649 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
650 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
651 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
652 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
653 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
654 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
655 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
656 #endif /* DISABLE_COM */
661 mono_marshal_cleanup (void)
663 TlsFree (load_type_info_tls_id);
664 TlsFree (last_error_tls_id);
665 DeleteCriticalSection (&marshal_mutex);
666 DeleteCriticalSection (&cominterop_mutex);
669 MonoClass *byte_array_class;
670 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
671 static MonoMethod *method_set_context, *method_get_context;
672 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
675 mono_remoting_marshal_init (void)
679 static gboolean module_initialized = FALSE;
681 if (!module_initialized) {
682 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
683 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
684 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
685 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
687 klass = mono_defaults.real_proxy_class;
688 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
690 klass = mono_defaults.exception_class;
691 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
693 klass = mono_defaults.thread_class;
694 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
696 klass = mono_defaults.appdomain_class;
697 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
698 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
700 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
701 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
703 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
704 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
706 module_initialized = TRUE;
711 mono_delegate_to_ftnptr (MonoDelegate *delegate)
713 MonoMethod *method, *wrapper;
719 if (delegate->delegate_trampoline)
720 return delegate->delegate_trampoline;
722 klass = ((MonoObject *)delegate)->vtable->klass;
723 g_assert (klass->delegate);
725 method = delegate->method;
727 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
729 delegate->delegate_trampoline = mono_compile_method (wrapper);
731 // Add the delegate to the delegate hash table
732 delegate_hash_table_add (delegate);
734 /* when the object is collected, collect the dynamic method, too */
735 mono_object_register_finalizer ((MonoObject*)delegate);
737 return delegate->delegate_trampoline;
741 * this hash table maps from a delegate trampoline object to a weak reference
742 * of the delegate. As an optimizations with a non-moving GC we store the
743 * object pointer itself, otherwise we use a GC handle.
745 static GHashTable *delegate_hash_table;
748 delegate_hash_table_new (void) {
749 return g_hash_table_new (NULL, NULL);
753 delegate_hash_table_remove (MonoDelegate *d)
755 #ifdef HAVE_MOVING_COLLECTOR
758 mono_marshal_lock ();
759 if (delegate_hash_table == NULL)
760 delegate_hash_table = delegate_hash_table_new ();
761 #ifdef HAVE_MOVING_COLLECTOR
762 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
764 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
765 mono_marshal_unlock ();
766 #ifdef HAVE_MOVING_COLLECTOR
767 mono_gchandle_free (gchandle);
772 delegate_hash_table_add (MonoDelegate *d)
774 #ifdef HAVE_MOVING_COLLECTOR
775 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
777 mono_marshal_lock ();
778 if (delegate_hash_table == NULL)
779 delegate_hash_table = delegate_hash_table_new ();
780 #ifdef HAVE_MOVING_COLLECTOR
781 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
783 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
785 mono_marshal_unlock ();
789 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
791 #ifdef HAVE_MOVING_COLLECTOR
796 mono_marshal_lock ();
797 if (delegate_hash_table == NULL)
798 delegate_hash_table = delegate_hash_table_new ();
800 #ifdef HAVE_MOVING_COLLECTOR
801 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
802 mono_marshal_unlock ();
804 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
808 d = g_hash_table_lookup (delegate_hash_table, ftn);
809 mono_marshal_unlock ();
812 /* This is a native function, so construct a delegate for it */
813 static MonoClass *UnmanagedFunctionPointerAttribute;
814 MonoMethodSignature *sig;
816 MonoMarshalSpec **mspecs;
817 MonoCustomAttrInfo *cinfo;
818 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
819 MonoMethod *invoke = mono_get_delegate_invoke (klass);
820 MonoMethodPInvoke piinfo;
823 memset (&piinfo, 0, sizeof (piinfo));
824 if (!UnmanagedFunctionPointerAttribute)
825 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
827 /* The attribute is only available in Net 2.0 */
828 if (UnmanagedFunctionPointerAttribute) {
830 * The pinvoke attributes are stored in a real custom attribute so we have to
833 cinfo = mono_custom_attrs_from_class (klass);
835 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
837 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
840 mono_custom_attrs_free (cinfo);
844 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
845 mono_method_get_marshal_info (invoke, mspecs);
846 /* Freed below so don't alloc from mempool */
847 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
850 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
852 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
854 mono_metadata_free_marshal_spec (mspecs [i]);
858 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
859 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
862 if (d->object.vtable->domain != mono_domain_get ())
863 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
869 mono_delegate_free_ftnptr (MonoDelegate *delegate)
874 delegate_hash_table_remove (delegate);
876 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
878 if (!delegate->target) {
879 /* The wrapper method is shared between delegates -> no need to free it */
884 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
887 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
892 mono_array_to_savearray (MonoArray *array)
897 g_assert_not_reached ();
902 mono_array_to_lparray (MonoArray *array)
907 /* fixme: maybe we need to make a copy */
908 return array->vector;
912 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
914 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
916 if (elclass == mono_defaults.byte_class) {
917 GError *error = NULL;
921 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
924 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
928 g_error_free (error);
931 g_assert_not_reached ();
935 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
937 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
939 if (elclass == mono_defaults.byte_class) {
941 GError *error = NULL;
943 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
945 MonoException *exc = mono_get_exception_argument ("string", error->message);
946 g_error_free (error);
947 mono_raise_exception (exc);
950 memcpy (native_arr, as, MIN (strlen (as), elnum));
953 g_assert_not_reached ();
958 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
960 GError *error = NULL;
970 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
972 if (items_written > mono_stringbuilder_capacity (sb))
973 items_written = mono_stringbuilder_capacity (sb);
976 if (! sb->str || sb->str == sb->cached_str) {
977 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
978 sb->cached_str = NULL;
981 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
982 sb->length = items_written;
984 g_error_free (error);
990 mono_string_utf8_to_builder2 (char *text)
993 MonoStringBuilder *sb;
994 static MonoClass *string_builder_class;
995 static MonoMethod *sb_ctor;
1002 if (!string_builder_class) {
1003 MonoMethodDesc *desc;
1005 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
1006 g_assert (string_builder_class);
1007 desc = mono_method_desc_new (":.ctor(int)", FALSE);
1008 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
1010 mono_method_desc_free (desc);
1015 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
1018 mono_runtime_invoke (sb_ctor, sb, args, &exc);
1021 mono_string_utf8_to_builder (sb, text);
1027 * FIXME: This routine does not seem to do what it seems to do
1028 * the @text is never copied into the string builder
1031 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1038 g_assert (mono_string_chars (sb->str) == text);
1040 for (len = 0; text [len] != 0; ++len)
1047 * mono_string_builder_to_utf8:
1048 * @sb: the string builder
1050 * Converts to utf8 the contents of the MonoStringBuilder.
1052 * Returns: a utf8 string with the contents of the StringBuilder.
1054 * The return value must be released with g_free.
1057 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1059 GError *error = NULL;
1060 gchar *tmp, *res = NULL;
1065 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
1067 * The sb could have been allocated with the default capacity and be empty.
1068 * we need to alloc a buffer of the default capacity in this case.
1070 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1071 sb->cached_str = NULL;
1074 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
1076 g_error_free (error);
1077 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1079 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
1080 memcpy (res, tmp, sb->length + 1);
1088 * mono_string_builder_to_utf16:
1089 * @sb: the string builder
1091 * Converts to utf16 the contents of the MonoStringBuilder.
1093 * Returns: a utf16 string with the contents of the StringBuilder.
1095 * The return value must not be freed.
1098 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1106 * The stringbuilder might not have ownership of this string. If this is
1107 * the case, we must duplicate the string, so that we don't munge immutable
1110 if (sb->str == sb->cached_str) {
1112 * The sb could have been allocated with the default capacity and be empty.
1113 * we need to alloc a buffer of the default capacity in this case.
1115 if (sb->str->length == 0)
1116 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1118 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1119 sb->cached_str = NULL;
1122 return mono_string_chars (sb->str);
1126 mono_string_to_lpstr (MonoString *s)
1128 #ifdef PLATFORM_WIN32
1131 GError *error = NULL;
1137 as = CoTaskMemAlloc (1);
1142 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1144 MonoException *exc = mono_get_exception_argument ("string", error->message);
1145 g_error_free (error);
1146 mono_raise_exception(exc);
1149 as = CoTaskMemAlloc (len + 1);
1150 memcpy (as, tmp, len + 1);
1155 return mono_string_to_utf8 (s);
1160 mono_string_to_ansibstr (MonoString *string_obj)
1162 g_error ("UnmanagedMarshal.BStr is not implemented.");
1166 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
1167 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
1168 typedef void (*SysFreeStringFunc)(gunichar* str);
1170 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
1171 static SysStringLenFunc sys_string_len_ms = NULL;
1172 static SysFreeStringFunc sys_free_string_ms = NULL;
1175 init_com_provider_ms (void)
1177 static gboolean initialized = FALSE;
1179 MonoDl *module = NULL;
1180 const char* scope = "liboleaut32.so";
1185 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
1187 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
1188 g_assert_not_reached ();
1191 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
1193 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
1194 g_assert_not_reached ();
1198 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
1200 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
1201 g_assert_not_reached ();
1205 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
1207 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
1208 g_assert_not_reached ();
1217 mono_string_to_bstr (MonoString *string_obj)
1221 #ifdef PLATFORM_WIN32
1222 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1224 if (com_provider == MONO_COM_DEFAULT) {
1225 int slen = mono_string_length (string_obj);
1226 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
1227 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
1230 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
1231 * ((guint32 *) ret) = slen * sizeof(gunichar2);
1232 ret [4 + slen * sizeof(gunichar2)] = 0;
1233 ret [5 + slen * sizeof(gunichar2)] = 0;
1236 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1237 gpointer ret = NULL;
1238 gunichar* str = NULL;
1240 len = mono_string_length (string_obj);
1241 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
1243 ret = sys_alloc_string_len_ms (str, len);
1247 g_assert_not_reached ();
1253 mono_string_from_bstr (gpointer bstr)
1257 #ifdef PLATFORM_WIN32
1258 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1260 if (com_provider == MONO_COM_DEFAULT) {
1261 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
1262 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1263 MonoString* str = NULL;
1265 gunichar2* utf16 = NULL;
1267 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
1268 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
1272 g_assert_not_reached ();
1279 mono_free_bstr (gpointer bstr)
1283 #ifdef PLATFORM_WIN32
1284 SysFreeString ((BSTR)bstr);
1286 if (com_provider == MONO_COM_DEFAULT) {
1287 g_free (((char *)bstr) - 4);
1288 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1289 sys_free_string_ms (bstr);
1291 g_assert_not_reached ();
1298 * mono_string_to_byvalstr:
1299 * @dst: Where to store the null-terminated utf8 decoded string.
1300 * @src: the MonoString to copy.
1301 * @size: the maximum number of bytes to copy.
1303 * Copies the MonoString pointed to by @src as a utf8 string
1304 * into @dst, it copies at most @size bytes into the destination.
1307 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1312 g_assert (dst != NULL);
1313 g_assert (size > 0);
1315 memset (dst, 0, size);
1319 s = mono_string_to_utf8 (src);
1320 len = MIN (size, strlen (s));
1323 memcpy (dst, s, len);
1328 * mono_string_to_byvalwstr:
1329 * @dst: Where to store the null-terminated utf16 decoded string.
1330 * @src: the MonoString to copy.
1331 * @size: the maximum number of bytes to copy.
1333 * Copies the MonoString pointed to by @src as a utf16 string into
1334 * @dst, it copies at most @size bytes into the destination (including
1335 * a terminating 16-bit zero terminator).
1338 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1342 g_assert (dst != NULL);
1343 g_assert (size > 1);
1346 memset (dst, 0, size * 2);
1350 len = MIN (size, (mono_string_length (src)));
1351 memcpy (dst, mono_string_chars (src), size * 2);
1352 if (size <= mono_string_length (src))
1354 *((gunichar2 *) dst + len) = 0;
1358 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1361 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1362 mono_mb_emit_byte (mb, CEE_LDIND_I);
1363 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1364 mono_mb_emit_byte (mb, CEE_ADD);
1365 mono_mb_emit_byte (mb, CEE_LDIND_I);
1366 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1367 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1368 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1369 pos = mono_mb_emit_branch (mb, branch_code);
1374 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1377 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1378 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1379 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1380 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1381 mono_mb_emit_icon (mb, -1);
1382 pos = mono_mb_emit_branch (mb, branch_code);
1387 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1389 static int offset = -1;
1393 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1395 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1396 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1397 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1398 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1399 mono_mb_emit_ldflda (mb, offset);
1400 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1401 mono_mb_emit_icon (mb, mask);
1402 mono_mb_emit_byte (mb, CEE_AND);
1403 mono_mb_emit_icon (mb, 0);
1404 return mono_mb_emit_branch (mb, branch_code);
1410 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1412 // get function pointer from 1st arg, the COM interface pointer
1413 mono_mb_emit_ldarg (mb, 0);
1414 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1415 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1417 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1418 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1419 mono_mb_emit_calli (mb, sig);
1420 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1421 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1424 #endif /* DISABLE_COM */
1427 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1429 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1433 mono_type_to_ldind (MonoType *type)
1439 switch (type->type) {
1441 return CEE_LDIND_I1;
1443 case MONO_TYPE_BOOLEAN:
1444 return CEE_LDIND_U1;
1446 return CEE_LDIND_I2;
1448 case MONO_TYPE_CHAR:
1449 return CEE_LDIND_U2;
1451 return CEE_LDIND_I4;
1453 return CEE_LDIND_U4;
1457 case MONO_TYPE_FNPTR:
1459 case MONO_TYPE_CLASS:
1460 case MONO_TYPE_STRING:
1461 case MONO_TYPE_OBJECT:
1462 case MONO_TYPE_SZARRAY:
1463 case MONO_TYPE_ARRAY:
1464 return CEE_LDIND_REF;
1467 return CEE_LDIND_I8;
1469 return CEE_LDIND_R4;
1471 return CEE_LDIND_R8;
1472 case MONO_TYPE_VALUETYPE:
1473 if (type->data.klass->enumtype) {
1474 type = mono_class_enum_basetype (type->data.klass);
1478 case MONO_TYPE_TYPEDBYREF:
1480 case MONO_TYPE_GENERICINST:
1481 type = &type->data.generic_class->container_class->byval_arg;
1484 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1490 mono_type_to_stind (MonoType *type)
1496 switch (type->type) {
1499 case MONO_TYPE_BOOLEAN:
1500 return CEE_STIND_I1;
1503 case MONO_TYPE_CHAR:
1504 return CEE_STIND_I2;
1507 return CEE_STIND_I4;
1511 case MONO_TYPE_FNPTR:
1513 case MONO_TYPE_CLASS:
1514 case MONO_TYPE_STRING:
1515 case MONO_TYPE_OBJECT:
1516 case MONO_TYPE_SZARRAY:
1517 case MONO_TYPE_ARRAY:
1518 return CEE_STIND_REF;
1521 return CEE_STIND_I8;
1523 return CEE_STIND_R4;
1525 return CEE_STIND_R8;
1526 case MONO_TYPE_VALUETYPE:
1527 if (type->data.klass->enumtype) {
1528 type = mono_class_enum_basetype (type->data.klass);
1532 case MONO_TYPE_TYPEDBYREF:
1534 case MONO_TYPE_GENERICINST:
1535 type = &type->data.generic_class->container_class->byval_arg;
1538 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1544 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1547 case MONO_MARSHAL_CONV_BOOL_I4:
1548 mono_mb_emit_ldloc (mb, 1);
1549 mono_mb_emit_ldloc (mb, 0);
1550 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1551 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1552 mono_mb_emit_byte (mb, 3);
1553 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1554 mono_mb_emit_byte (mb, CEE_BR_S);
1555 mono_mb_emit_byte (mb, 1);
1556 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1557 mono_mb_emit_byte (mb, CEE_STIND_I1);
1559 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1560 mono_mb_emit_ldloc (mb, 1);
1561 mono_mb_emit_ldloc (mb, 0);
1562 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1563 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1564 mono_mb_emit_byte (mb, 3);
1565 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1566 mono_mb_emit_byte (mb, CEE_BR_S);
1567 mono_mb_emit_byte (mb, 1);
1568 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1569 mono_mb_emit_byte (mb, CEE_STIND_I1);
1571 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1572 MonoClass *eklass = NULL;
1575 if (type->type == MONO_TYPE_SZARRAY) {
1576 eklass = type->data.klass;
1578 g_assert_not_reached ();
1581 esize = mono_class_native_size (eklass, NULL);
1583 /* create a new array */
1584 mono_mb_emit_ldloc (mb, 1);
1585 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1586 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1587 mono_mb_emit_byte (mb, CEE_STIND_I);
1589 if (eklass->blittable) {
1590 /* copy the elements */
1591 mono_mb_emit_ldloc (mb, 1);
1592 mono_mb_emit_byte (mb, CEE_LDIND_I);
1593 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1594 mono_mb_emit_byte (mb, CEE_ADD);
1595 mono_mb_emit_ldloc (mb, 0);
1596 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1597 mono_mb_emit_byte (mb, CEE_PREFIX1);
1598 mono_mb_emit_byte (mb, CEE_CPBLK);
1601 int array_var, src_var, dst_var, index_var;
1602 guint32 label2, label3;
1604 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1605 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1606 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1609 mono_mb_emit_ldloc (mb, 1);
1610 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1611 mono_mb_emit_stloc (mb, array_var);
1613 /* save the old src pointer */
1614 mono_mb_emit_ldloc (mb, 0);
1615 mono_mb_emit_stloc (mb, src_var);
1616 /* save the old dst pointer */
1617 mono_mb_emit_ldloc (mb, 1);
1618 mono_mb_emit_stloc (mb, dst_var);
1620 /* Emit marshalling loop */
1621 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1622 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1623 mono_mb_emit_stloc (mb, index_var);
1626 label2 = mono_mb_get_label (mb);
1627 mono_mb_emit_ldloc (mb, index_var);
1628 mono_mb_emit_ldloc (mb, array_var);
1629 mono_mb_emit_byte (mb, CEE_LDLEN);
1630 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1632 /* src is already set */
1635 mono_mb_emit_ldloc (mb, array_var);
1636 mono_mb_emit_ldloc (mb, index_var);
1637 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1638 mono_mb_emit_stloc (mb, 1);
1640 /* Do the conversion */
1641 emit_struct_conv (mb, eklass, TRUE);
1644 mono_mb_emit_add_to_local (mb, index_var, 1);
1646 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1648 mono_mb_patch_branch (mb, label3);
1650 /* restore the old src pointer */
1651 mono_mb_emit_ldloc (mb, src_var);
1652 mono_mb_emit_stloc (mb, 0);
1653 /* restore the old dst pointer */
1654 mono_mb_emit_ldloc (mb, dst_var);
1655 mono_mb_emit_stloc (mb, 1);
1659 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1660 MonoClass *eclass = mono_defaults.char_class;
1662 /* create a new array */
1663 mono_mb_emit_ldloc (mb, 1);
1664 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1665 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1666 mono_mb_emit_byte (mb, CEE_STIND_REF);
1668 mono_mb_emit_ldloc (mb, 1);
1669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1670 mono_mb_emit_ldloc (mb, 0);
1671 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1672 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1673 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1676 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1677 mono_mb_emit_ldloc (mb, 1);
1678 mono_mb_emit_ldloc (mb, 0);
1679 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1680 mono_mb_emit_byte (mb, CEE_STIND_REF);
1682 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1683 mono_mb_emit_ldloc (mb, 1);
1684 mono_mb_emit_ldloc (mb, 0);
1685 mono_mb_emit_icall (mb, mono_string_from_utf16);
1686 mono_mb_emit_byte (mb, CEE_STIND_REF);
1688 case MONO_MARSHAL_CONV_STR_LPTSTR:
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_I);
1692 #ifdef PLATFORM_WIN32
1693 mono_mb_emit_icall (mb, mono_string_from_utf16);
1695 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1697 mono_mb_emit_byte (mb, CEE_STIND_REF);
1699 case MONO_MARSHAL_CONV_STR_LPSTR:
1700 mono_mb_emit_ldloc (mb, 1);
1701 mono_mb_emit_ldloc (mb, 0);
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1704 mono_mb_emit_byte (mb, CEE_STIND_REF);
1706 case MONO_MARSHAL_CONV_STR_LPWSTR:
1707 mono_mb_emit_ldloc (mb, 1);
1708 mono_mb_emit_ldloc (mb, 0);
1709 mono_mb_emit_byte (mb, CEE_LDIND_I);
1710 mono_mb_emit_icall (mb, mono_string_from_utf16);
1711 mono_mb_emit_byte (mb, CEE_STIND_REF);
1713 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1714 MonoClass *klass = mono_class_from_mono_type (type);
1715 int src_var, dst_var;
1717 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1718 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1720 /* *dst = new object */
1721 mono_mb_emit_ldloc (mb, 1);
1722 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1723 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1724 mono_mb_emit_byte (mb, CEE_STIND_REF);
1726 /* save the old src pointer */
1727 mono_mb_emit_ldloc (mb, 0);
1728 mono_mb_emit_stloc (mb, src_var);
1729 /* save the old dst pointer */
1730 mono_mb_emit_ldloc (mb, 1);
1731 mono_mb_emit_stloc (mb, dst_var);
1733 /* dst = pointer to newly created object data */
1734 mono_mb_emit_ldloc (mb, 1);
1735 mono_mb_emit_byte (mb, CEE_LDIND_I);
1736 mono_mb_emit_icon (mb, sizeof (MonoObject));
1737 mono_mb_emit_byte (mb, CEE_ADD);
1738 mono_mb_emit_stloc (mb, 1);
1740 emit_struct_conv (mb, klass, TRUE);
1742 /* restore the old src pointer */
1743 mono_mb_emit_ldloc (mb, src_var);
1744 mono_mb_emit_stloc (mb, 0);
1745 /* restore the old dst pointer */
1746 mono_mb_emit_ldloc (mb, dst_var);
1747 mono_mb_emit_stloc (mb, 1);
1750 case MONO_MARSHAL_CONV_DEL_FTN: {
1751 MonoClass *klass = mono_class_from_mono_type (type);
1753 mono_mb_emit_ldloc (mb, 1);
1754 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1755 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1756 mono_mb_emit_ldloc (mb, 0);
1757 mono_mb_emit_byte (mb, CEE_LDIND_I);
1758 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1759 mono_mb_emit_byte (mb, CEE_STIND_REF);
1762 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1763 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1767 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1768 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1769 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1770 static MonoClass* com_interop_proxy_class = NULL;
1771 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1772 static MonoMethod* get_transparent_proxy = NULL;
1774 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1775 MonoClass *klass = NULL;
1777 /* COM types are initialized lazily */
1778 mono_init_com_types ();
1780 klass = mono_class_from_mono_type (type);
1782 mono_mb_emit_ldloc (mb, 1);
1783 mono_mb_emit_byte (mb, CEE_LDNULL);
1784 mono_mb_emit_byte (mb, CEE_STIND_REF);
1786 mono_mb_emit_ldloc (mb, 0);
1787 mono_mb_emit_byte (mb, CEE_LDIND_I);
1788 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1790 /* load dst to store later */
1791 mono_mb_emit_ldloc (mb, 1);
1793 mono_mb_emit_ldloc (mb, 0);
1794 mono_mb_emit_byte (mb, CEE_LDIND_I);
1795 mono_mb_emit_icon (mb, TRUE);
1796 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1797 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1799 if (!com_interop_proxy_class)
1800 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1801 if (!com_interop_proxy_get_proxy)
1802 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1803 if (!get_transparent_proxy)
1804 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1806 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1808 mono_mb_emit_ldloc (mb, 0);
1809 mono_mb_emit_byte (mb, CEE_LDIND_I);
1810 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1811 mono_mb_emit_icall (mb, type_from_handle);
1812 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1813 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1814 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1816 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1818 mono_mb_emit_byte (mb, CEE_STIND_REF);
1819 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1821 /* is already managed object */
1822 mono_mb_patch_short_branch (mb, pos_ccw);
1823 mono_mb_emit_ldloc (mb, 0);
1824 mono_mb_emit_byte (mb, CEE_LDIND_I);
1825 mono_mb_emit_icon (mb, TRUE);
1826 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1828 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1830 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1832 mono_mb_emit_byte (mb, CEE_STIND_REF);
1834 mono_mb_patch_short_branch (mb, pos_end);
1836 mono_mb_patch_short_branch (mb, pos_null);
1839 #endif /* DISABLE_COM */
1841 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1843 * Passing SafeHandles as ref does not allow the unmanaged code
1844 * to change the SafeHandle value. If the value is changed,
1845 * we should issue a diagnostic exception (NotSupportedException)
1846 * that informs the user that changes to handles in unmanaged code
1849 * Since we currently have no access to the original
1850 * SafeHandle that was used during the marshalling,
1851 * for now we just ignore this, and ignore/discard any
1852 * changes that might have happened to the handle.
1857 case MONO_MARSHAL_CONV_HANDLEREF: {
1859 * Passing HandleRefs in a struct that is ref()ed does not
1860 * copy the values back to the HandleRef
1865 case MONO_MARSHAL_CONV_STR_BSTR:
1866 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1867 case MONO_MARSHAL_CONV_STR_TBSTR:
1868 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1870 g_warning ("marshaling conversion %d not implemented", conv);
1871 g_assert_not_reached ();
1876 conv_to_icall (MonoMarshalConv conv)
1879 case MONO_MARSHAL_CONV_STR_LPWSTR:
1880 return mono_marshal_string_to_utf16;
1881 case MONO_MARSHAL_CONV_LPWSTR_STR:
1882 return mono_string_from_utf16;
1883 case MONO_MARSHAL_CONV_LPSTR_STR:
1884 return mono_string_new_wrapper;
1885 case MONO_MARSHAL_CONV_STR_LPTSTR:
1886 #ifdef PLATFORM_WIN32
1887 return mono_marshal_string_to_utf16;
1889 return mono_string_to_lpstr;
1891 case MONO_MARSHAL_CONV_STR_LPSTR:
1892 return mono_string_to_lpstr;
1893 case MONO_MARSHAL_CONV_STR_BSTR:
1894 return mono_string_to_bstr;
1895 case MONO_MARSHAL_CONV_BSTR_STR:
1896 return mono_string_from_bstr;
1897 case MONO_MARSHAL_CONV_STR_TBSTR:
1898 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1899 return mono_string_to_ansibstr;
1900 case MONO_MARSHAL_CONV_SB_LPSTR:
1901 return mono_string_builder_to_utf8;
1902 case MONO_MARSHAL_CONV_SB_LPTSTR:
1903 #ifdef PLATFORM_WIN32
1904 return mono_string_builder_to_utf16;
1906 return mono_string_builder_to_utf8;
1908 case MONO_MARSHAL_CONV_SB_LPWSTR:
1909 return mono_string_builder_to_utf16;
1910 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1911 return mono_array_to_savearray;
1912 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1913 return mono_array_to_lparray;
1914 case MONO_MARSHAL_CONV_DEL_FTN:
1915 return mono_delegate_to_ftnptr;
1916 case MONO_MARSHAL_CONV_FTN_DEL:
1917 return mono_ftnptr_to_delegate;
1918 case MONO_MARSHAL_CONV_LPSTR_SB:
1919 return mono_string_utf8_to_builder;
1920 case MONO_MARSHAL_CONV_LPTSTR_SB:
1921 #ifdef PLATFORM_WIN32
1922 return mono_string_utf16_to_builder;
1924 return mono_string_utf8_to_builder;
1926 case MONO_MARSHAL_CONV_LPWSTR_SB:
1927 return mono_string_utf16_to_builder;
1928 case MONO_MARSHAL_FREE_ARRAY:
1929 return mono_marshal_free_array;
1930 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1931 return mono_string_to_byvalstr;
1932 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1933 return mono_string_to_byvalwstr;
1935 g_assert_not_reached ();
1942 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1947 case MONO_MARSHAL_CONV_BOOL_I4:
1948 mono_mb_emit_ldloc (mb, 1);
1949 mono_mb_emit_ldloc (mb, 0);
1950 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1951 mono_mb_emit_byte (mb, CEE_STIND_I4);
1953 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1954 mono_mb_emit_ldloc (mb, 1);
1955 mono_mb_emit_ldloc (mb, 0);
1956 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1957 mono_mb_emit_byte (mb, CEE_NEG);
1958 mono_mb_emit_byte (mb, CEE_STIND_I2);
1960 case MONO_MARSHAL_CONV_STR_LPWSTR:
1961 case MONO_MARSHAL_CONV_STR_LPSTR:
1962 case MONO_MARSHAL_CONV_STR_LPTSTR:
1963 case MONO_MARSHAL_CONV_STR_BSTR:
1964 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1965 case MONO_MARSHAL_CONV_STR_TBSTR: {
1968 /* free space if free == true */
1969 mono_mb_emit_ldloc (mb, 2);
1970 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1971 mono_mb_emit_ldloc (mb, 1);
1972 mono_mb_emit_byte (mb, CEE_LDIND_I);
1973 mono_mb_emit_icall (mb, g_free);
1974 mono_mb_patch_short_branch (mb, pos);
1976 mono_mb_emit_ldloc (mb, 1);
1977 mono_mb_emit_ldloc (mb, 0);
1978 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1979 mono_mb_emit_icall (mb, conv_to_icall (conv));
1980 mono_mb_emit_byte (mb, CEE_STIND_I);
1983 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1984 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1985 case MONO_MARSHAL_CONV_DEL_FTN:
1986 mono_mb_emit_ldloc (mb, 1);
1987 mono_mb_emit_ldloc (mb, 0);
1988 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1989 mono_mb_emit_icall (mb, conv_to_icall (conv));
1990 mono_mb_emit_byte (mb, CEE_STIND_I);
1992 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1993 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1996 mono_mb_emit_ldloc (mb, 1); /* dst */
1997 mono_mb_emit_ldloc (mb, 0);
1998 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1999 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2000 mono_mb_emit_icall (mb, conv_to_icall (conv));
2003 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
2004 MonoClass *eklass = NULL;
2007 if (type->type == MONO_TYPE_SZARRAY) {
2008 eklass = type->data.klass;
2010 g_assert_not_reached ();
2013 if (eklass->valuetype)
2014 esize = mono_class_native_size (eklass, NULL);
2016 esize = sizeof (gpointer);
2018 mono_mb_emit_ldloc (mb, 0);
2019 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2020 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2022 if (eklass->blittable) {
2023 mono_mb_emit_ldloc (mb, 1);
2024 mono_mb_emit_ldloc (mb, 0);
2025 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2026 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
2027 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
2028 mono_mb_emit_byte (mb, CEE_PREFIX1);
2029 mono_mb_emit_byte (mb, CEE_CPBLK);
2031 int array_var, src_var, dst_var, index_var;
2032 guint32 label2, label3;
2034 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2035 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2036 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2039 mono_mb_emit_ldloc (mb, 0);
2040 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2041 mono_mb_emit_stloc (mb, array_var);
2043 /* save the old src pointer */
2044 mono_mb_emit_ldloc (mb, 0);
2045 mono_mb_emit_stloc (mb, src_var);
2046 /* save the old dst pointer */
2047 mono_mb_emit_ldloc (mb, 1);
2048 mono_mb_emit_stloc (mb, dst_var);
2050 /* Emit marshalling loop */
2051 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2052 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2053 mono_mb_emit_stloc (mb, index_var);
2056 label2 = mono_mb_get_label (mb);
2057 mono_mb_emit_ldloc (mb, index_var);
2058 mono_mb_emit_ldloc (mb, array_var);
2059 mono_mb_emit_byte (mb, CEE_LDLEN);
2060 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2063 mono_mb_emit_ldloc (mb, array_var);
2064 mono_mb_emit_ldloc (mb, index_var);
2065 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2066 mono_mb_emit_stloc (mb, 0);
2068 /* dst is already set */
2070 /* Do the conversion */
2071 emit_struct_conv (mb, eklass, FALSE);
2074 mono_mb_emit_add_to_local (mb, index_var, 1);
2076 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2078 mono_mb_patch_branch (mb, label3);
2080 /* restore the old src pointer */
2081 mono_mb_emit_ldloc (mb, src_var);
2082 mono_mb_emit_stloc (mb, 0);
2083 /* restore the old dst pointer */
2084 mono_mb_emit_ldloc (mb, dst_var);
2085 mono_mb_emit_stloc (mb, 1);
2088 mono_mb_patch_branch (mb, pos);
2091 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2092 mono_mb_emit_ldloc (mb, 0);
2093 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2094 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2096 mono_mb_emit_ldloc (mb, 1);
2097 mono_mb_emit_ldloc (mb, 0);
2098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2099 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
2100 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2101 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2102 mono_mb_patch_short_branch (mb, pos);
2105 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2106 int src_var, dst_var;
2108 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2109 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2111 mono_mb_emit_ldloc (mb, 0);
2112 mono_mb_emit_byte (mb, CEE_LDIND_I);
2113 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2115 /* save the old src pointer */
2116 mono_mb_emit_ldloc (mb, 0);
2117 mono_mb_emit_stloc (mb, src_var);
2118 /* save the old dst pointer */
2119 mono_mb_emit_ldloc (mb, 1);
2120 mono_mb_emit_stloc (mb, dst_var);
2122 /* src = pointer to object data */
2123 mono_mb_emit_ldloc (mb, 0);
2124 mono_mb_emit_byte (mb, CEE_LDIND_I);
2125 mono_mb_emit_icon (mb, sizeof (MonoObject));
2126 mono_mb_emit_byte (mb, CEE_ADD);
2127 mono_mb_emit_stloc (mb, 0);
2129 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2131 /* restore the old src pointer */
2132 mono_mb_emit_ldloc (mb, src_var);
2133 mono_mb_emit_stloc (mb, 0);
2134 /* restore the old dst pointer */
2135 mono_mb_emit_ldloc (mb, dst_var);
2136 mono_mb_emit_stloc (mb, 1);
2138 mono_mb_patch_branch (mb, pos);
2143 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2144 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2145 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2146 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2148 /* COM types are initialized lazily */
2149 mono_init_com_types ();
2152 mono_mb_emit_ldloc (mb, 1);
2153 mono_mb_emit_icon (mb, 0);
2154 mono_mb_emit_byte (mb, CEE_CONV_U);
2155 mono_mb_emit_byte (mb, CEE_STIND_I);
2157 mono_mb_emit_ldloc (mb, 0);
2158 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2160 // if null just break, dst was already inited to 0
2161 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2163 mono_mb_emit_ldloc (mb, 0);
2164 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2165 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2166 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2168 // load dst to store later
2169 mono_mb_emit_ldloc (mb, 1);
2172 mono_mb_emit_ldloc (mb, 0);
2173 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2174 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2175 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2177 /* load the RCW from the ComInteropProxy*/
2178 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2181 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2182 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2183 mono_mb_emit_icon (mb, TRUE);
2184 mono_mb_emit_icall (mb, cominterop_get_interface);
2187 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2188 static MonoProperty* iunknown = NULL;
2191 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2192 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2194 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2195 static MonoProperty* idispatch = NULL;
2198 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2199 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2202 g_assert_not_reached ();
2204 mono_mb_emit_byte (mb, CEE_STIND_I);
2205 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2208 mono_mb_patch_short_branch (mb, pos_rcw);
2209 /* load dst to store later */
2210 mono_mb_emit_ldloc (mb, 1);
2212 mono_mb_emit_ldloc (mb, 0);
2213 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2215 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2216 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2217 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2218 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2219 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2220 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2222 g_assert_not_reached ();
2223 mono_mb_emit_icall (mb, cominterop_get_ccw);
2224 mono_mb_emit_byte (mb, CEE_STIND_I);
2226 mono_mb_patch_short_branch (mb, pos_end);
2227 mono_mb_patch_short_branch (mb, pos_null);
2230 #endif /* DISABLE_COM */
2232 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2233 int dar_release_slot, pos;
2235 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2238 * The following is ifdefed-out, because I have no way of doing the
2239 * DangerousRelease when destroying the structure
2242 /* set release = false */
2243 mono_mb_emit_icon (mb, 0);
2244 mono_mb_emit_stloc (mb, dar_release_slot);
2245 if (!sh_dangerous_add_ref)
2246 init_safe_handle ();
2248 /* safehandle.DangerousAddRef (ref release) */
2249 mono_mb_emit_ldloc (mb, 0); /* the source */
2250 mono_mb_emit_byte (mb, CEE_LDIND_I);
2251 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2252 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2254 mono_mb_emit_ldloc (mb, 0);
2255 mono_mb_emit_byte (mb, CEE_LDIND_I);
2256 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2257 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2258 mono_mb_patch_branch (mb, pos);
2260 /* Pull the handle field from SafeHandle */
2261 mono_mb_emit_ldloc (mb, 1);
2262 mono_mb_emit_ldloc (mb, 0);
2263 mono_mb_emit_byte (mb, CEE_LDIND_I);
2264 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2265 mono_mb_emit_byte (mb, CEE_LDIND_I);
2266 mono_mb_emit_byte (mb, CEE_STIND_I);
2270 case MONO_MARSHAL_CONV_HANDLEREF: {
2271 mono_mb_emit_ldloc (mb, 1);
2272 mono_mb_emit_ldloc (mb, 0);
2273 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2274 mono_mb_emit_byte (mb, CEE_ADD);
2275 mono_mb_emit_byte (mb, CEE_LDIND_I);
2276 mono_mb_emit_byte (mb, CEE_STIND_I);
2281 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2282 MonoException *exc = mono_get_exception_not_implemented (msg);
2285 mono_raise_exception (exc);
2291 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2293 MonoMarshalType *info;
2297 emit_struct_conv(mb, klass->parent, to_object);
2299 info = mono_marshal_load_type_info (klass);
2301 if (info->native_size == 0)
2304 if (klass->blittable) {
2305 int msize = mono_class_value_size (klass, NULL);
2306 g_assert (msize == info->native_size);
2307 mono_mb_emit_ldloc (mb, 1);
2308 mono_mb_emit_ldloc (mb, 0);
2309 mono_mb_emit_icon (mb, msize);
2310 mono_mb_emit_byte (mb, CEE_PREFIX1);
2311 mono_mb_emit_byte (mb, CEE_CPBLK);
2313 mono_mb_emit_add_to_local (mb, 0, msize);
2314 mono_mb_emit_add_to_local (mb, 1, msize);
2318 for (i = 0; i < info->num_fields; i++) {
2319 MonoMarshalNative ntype;
2320 MonoMarshalConv conv;
2321 MonoType *ftype = info->fields [i].field->type;
2324 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2326 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2329 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2332 msize = klass->instance_size - info->fields [i].field->offset;
2333 usize = info->native_size - info->fields [i].offset;
2335 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2336 usize = info->fields [i + 1].offset - info->fields [i].offset;
2339 if (klass != mono_defaults.safehandle_class){
2341 * FIXME: Should really check for usize==0 and msize>0, but we apply
2342 * the layout to the managed structure as well.
2345 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2346 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2347 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2348 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2349 "reference field at the same offset as another field.",
2350 mono_type_full_name (&klass->byval_arg));
2353 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2354 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2355 mono_type_full_name (&klass->byval_arg));
2360 case MONO_MARSHAL_CONV_NONE: {
2363 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2364 ftype->type == MONO_TYPE_U) {
2365 mono_mb_emit_ldloc (mb, 1);
2366 mono_mb_emit_ldloc (mb, 0);
2367 mono_mb_emit_byte (mb, CEE_LDIND_I);
2368 mono_mb_emit_byte (mb, CEE_STIND_I);
2379 case MONO_TYPE_BOOLEAN:
2382 case MONO_TYPE_CHAR:
2388 mono_mb_emit_ldloc (mb, 1);
2389 mono_mb_emit_ldloc (mb, 0);
2390 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2391 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2393 case MONO_TYPE_VALUETYPE: {
2394 int src_var, dst_var;
2396 if (ftype->data.klass->enumtype) {
2397 ftype = mono_class_enum_basetype (ftype->data.klass);
2401 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2402 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2404 /* save the old src pointer */
2405 mono_mb_emit_ldloc (mb, 0);
2406 mono_mb_emit_stloc (mb, src_var);
2407 /* save the old dst pointer */
2408 mono_mb_emit_ldloc (mb, 1);
2409 mono_mb_emit_stloc (mb, dst_var);
2411 emit_struct_conv (mb, ftype->data.klass, to_object);
2413 /* restore the old src pointer */
2414 mono_mb_emit_ldloc (mb, src_var);
2415 mono_mb_emit_stloc (mb, 0);
2416 /* restore the old dst pointer */
2417 mono_mb_emit_ldloc (mb, dst_var);
2418 mono_mb_emit_stloc (mb, 1);
2421 case MONO_TYPE_OBJECT: {
2422 mono_init_com_types ();
2424 static MonoMethod *variant_clear = NULL;
2425 static MonoMethod *get_object_for_native_variant = NULL;
2428 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2429 if (!get_object_for_native_variant)
2430 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2431 mono_mb_emit_ldloc (mb, 1);
2432 mono_mb_emit_ldloc (mb, 0);
2433 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2434 mono_mb_emit_byte (mb, CEE_STIND_REF);
2436 mono_mb_emit_ldloc (mb, 0);
2437 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2440 static MonoMethod *get_native_variant_for_object = NULL;
2442 if (!get_native_variant_for_object)
2443 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2445 mono_mb_emit_ldloc (mb, 0);
2446 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2447 mono_mb_emit_ldloc (mb, 1);
2448 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2454 g_warning ("marshaling type %02x not implemented", ftype->type);
2455 g_assert_not_reached ();
2460 int src_var, dst_var;
2462 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2463 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2465 /* save the old src pointer */
2466 mono_mb_emit_ldloc (mb, 0);
2467 mono_mb_emit_stloc (mb, src_var);
2468 /* save the old dst pointer */
2469 mono_mb_emit_ldloc (mb, 1);
2470 mono_mb_emit_stloc (mb, dst_var);
2473 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2475 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2477 /* restore the old src pointer */
2478 mono_mb_emit_ldloc (mb, src_var);
2479 mono_mb_emit_stloc (mb, 0);
2480 /* restore the old dst pointer */
2481 mono_mb_emit_ldloc (mb, dst_var);
2482 mono_mb_emit_stloc (mb, 1);
2487 mono_mb_emit_add_to_local (mb, 0, usize);
2488 mono_mb_emit_add_to_local (mb, 1, msize);
2490 mono_mb_emit_add_to_local (mb, 0, msize);
2491 mono_mb_emit_add_to_local (mb, 1, usize);
2497 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2499 /* Call DestroyStructure */
2500 /* FIXME: Only do this if needed */
2501 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2502 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2503 mono_mb_emit_ldloc (mb, struct_var);
2504 mono_mb_emit_icall (mb, mono_struct_delete_old);
2508 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2512 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2513 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2514 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2516 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2517 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2519 mono_mb_emit_icall (mb, checkpoint_func);
2521 mono_mb_patch_branch (mb, pos_noabort);
2525 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2527 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2530 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2534 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2536 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2539 static MonoAsyncResult *
2540 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2542 MonoMethodMessage *msg;
2543 MonoDelegate *async_callback;
2547 MonoMethod *method = NULL, *method2 = NULL;
2549 g_assert (delegate);
2551 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2553 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2554 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2556 /* If the target is a proxy, make a direct call. Is proxy's work
2557 // to make the call asynchronous.
2559 MonoAsyncResult *ares;
2561 MonoArray *out_args;
2563 method = delegate->method;
2565 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2566 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2567 g_assert(handle != NULL);
2568 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2569 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2570 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2571 MONO_OBJECT_SETREF (msg, async_result, ares);
2572 msg->call_type = CallType_BeginInvoke;
2574 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2579 klass = delegate->object.vtable->klass;
2581 method = mono_get_delegate_invoke (klass);
2582 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2585 g_assert (method != NULL);
2587 im = mono_get_delegate_invoke (method->klass);
2588 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2590 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2594 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2596 int i, params_var, tmp_var;
2598 /* allocate local (pointer) *params[] */
2599 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2600 /* allocate local (pointer) tmp */
2601 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2603 /* alloate space on stack to store an array of pointers to the arguments */
2604 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2605 mono_mb_emit_byte (mb, CEE_PREFIX1);
2606 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2607 mono_mb_emit_stloc (mb, params_var);
2610 mono_mb_emit_ldloc (mb, params_var);
2611 mono_mb_emit_stloc (mb, tmp_var);
2613 if (save_this && sig->hasthis) {
2614 mono_mb_emit_ldloc (mb, tmp_var);
2615 mono_mb_emit_ldarg_addr (mb, 0);
2616 mono_mb_emit_byte (mb, CEE_STIND_I);
2617 /* tmp = tmp + sizeof (gpointer) */
2618 if (sig->param_count)
2619 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2623 for (i = 0; i < sig->param_count; i++) {
2624 mono_mb_emit_ldloc (mb, tmp_var);
2625 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2626 mono_mb_emit_byte (mb, CEE_STIND_I);
2627 /* tmp = tmp + sizeof (gpointer) */
2628 if (i < (sig->param_count - 1))
2629 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2636 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2640 GString *res = g_string_new ("");
2643 g_string_append (res, prefix);
2644 g_string_append_c (res, '_');
2647 mono_type_get_desc (res, sig->ret, FALSE);
2650 g_string_append (res, "__this__");
2652 for (i = 0; i < sig->param_count; ++i) {
2653 g_string_append_c (res, '_');
2654 mono_type_get_desc (res, sig->params [i], FALSE);
2657 g_string_free (res, FALSE);
2662 * mono_marshal_get_string_encoding:
2664 * Return the string encoding which should be used for a given parameter.
2666 static MonoMarshalNative
2667 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2669 /* First try the parameter marshal info */
2671 if (spec->native == MONO_NATIVE_LPARRAY) {
2672 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2673 return spec->data.array_data.elem_type;
2676 return spec->native;
2680 return MONO_NATIVE_LPSTR;
2682 /* Then try the method level marshal info */
2683 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2684 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2685 return MONO_NATIVE_LPSTR;
2686 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2687 return MONO_NATIVE_LPWSTR;
2688 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2689 #ifdef PLATFORM_WIN32
2690 return MONO_NATIVE_LPWSTR;
2692 return MONO_NATIVE_LPSTR;
2695 return MONO_NATIVE_LPSTR;
2699 static MonoMarshalConv
2700 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2702 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2705 case MONO_NATIVE_LPWSTR:
2706 return MONO_MARSHAL_CONV_STR_LPWSTR;
2707 case MONO_NATIVE_LPSTR:
2708 return MONO_MARSHAL_CONV_STR_LPSTR;
2709 case MONO_NATIVE_LPTSTR:
2710 return MONO_MARSHAL_CONV_STR_LPTSTR;
2711 case MONO_NATIVE_BSTR:
2712 return MONO_MARSHAL_CONV_STR_BSTR;
2718 static MonoMarshalConv
2719 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2721 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2724 case MONO_NATIVE_LPWSTR:
2725 return MONO_MARSHAL_CONV_SB_LPWSTR;
2727 case MONO_NATIVE_LPSTR:
2728 return MONO_MARSHAL_CONV_SB_LPSTR;
2730 case MONO_NATIVE_LPTSTR:
2731 return MONO_MARSHAL_CONV_SB_LPTSTR;
2738 static MonoMarshalConv
2739 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2741 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2746 case MONO_NATIVE_LPWSTR:
2748 return MONO_MARSHAL_CONV_LPWSTR_STR;
2749 case MONO_NATIVE_LPSTR:
2750 return MONO_MARSHAL_CONV_LPSTR_STR;
2751 case MONO_NATIVE_LPTSTR:
2752 return MONO_MARSHAL_CONV_LPTSTR_STR;
2753 case MONO_NATIVE_BSTR:
2754 return MONO_MARSHAL_CONV_BSTR_STR;
2760 static MonoMarshalConv
2761 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2763 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2768 case MONO_NATIVE_LPWSTR:
2770 * mono_string_builder_to_utf16 does not allocate a
2771 * new buffer, so no need to free it.
2774 return MONO_MARSHAL_CONV_LPWSTR_SB;
2775 case MONO_NATIVE_LPSTR:
2776 return MONO_MARSHAL_CONV_LPSTR_SB;
2778 case MONO_NATIVE_LPTSTR:
2779 return MONO_MARSHAL_CONV_LPTSTR_SB;
2787 * Return whenever a field of a native structure or an array member needs to
2791 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2793 MonoMarshalNative encoding;
2794 MonoMarshalConv conv;
2797 case MONO_TYPE_VALUETYPE:
2798 /* FIXME: Optimize this */
2800 case MONO_TYPE_OBJECT:
2801 case MONO_TYPE_CLASS:
2802 if (t->data.klass == mono_defaults.stringbuilder_class) {
2804 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2808 case MONO_TYPE_STRING:
2809 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2810 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2817 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2820 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2823 mono_marshal_lock ();
2826 g_hash_table_new (hash_func, equal_func);
2827 mono_memory_barrier ();
2830 mono_marshal_unlock ();
2835 static inline MonoMethod*
2836 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2840 mono_marshal_lock ();
2841 res = g_hash_table_lookup (cache, key);
2842 mono_marshal_unlock ();
2847 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2851 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2854 datav = ((MonoMethodWrapper *)method)->method_data;
2858 /* Create the method from the builder and place it in the cache */
2859 static inline MonoMethod*
2860 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2861 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2866 mono_marshal_lock ();
2867 res = g_hash_table_lookup (cache, key);
2868 mono_marshal_unlock ();
2871 newm = mono_mb_create_method (mb, sig, max_stack);
2872 mono_marshal_lock ();
2873 res = g_hash_table_lookup (cache, key);
2876 g_hash_table_insert (cache, key, res);
2877 mono_marshal_method_set_wrapper_data (res, key);
2878 mono_marshal_unlock ();
2880 mono_marshal_unlock ();
2881 mono_free_method (newm);
2889 static inline MonoMethod*
2890 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2892 MonoMethod *res = NULL;
2893 MonoRemotingMethods *wrps;
2895 mono_marshal_lock ();
2896 if (method->klass->image->remoting_invoke_cache)
2897 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2902 switch (wrapper_type) {
2903 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2904 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2905 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2906 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2910 /* it is important to do the unlock after the load from wrps, since in
2911 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2912 * to take the loader lock and some other thread may set the fields.
2914 mono_marshal_unlock ();
2918 /* Create the method from the builder and place it in the cache */
2919 static inline MonoMethod*
2920 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2921 MonoMethodSignature *sig, int max_stack)
2923 MonoMethod **res = NULL;
2924 MonoRemotingMethods *wrps;
2925 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2927 mono_marshal_lock ();
2928 wrps = g_hash_table_lookup (cache, key);
2930 wrps = g_new0 (MonoRemotingMethods, 1);
2931 g_hash_table_insert (cache, key, wrps);
2934 switch (mb->method->wrapper_type) {
2935 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2936 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2937 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2938 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2939 default: g_assert_not_reached (); break;
2941 mono_marshal_unlock ();
2945 newm = mono_mb_create_method (mb, sig, max_stack);
2947 mono_marshal_lock ();
2950 mono_marshal_method_set_wrapper_data (*res, key);
2951 mono_marshal_unlock ();
2953 mono_marshal_unlock ();
2954 mono_free_method (newm);
2962 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2966 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2969 res = mono_method_get_wrapper_data (wrapper, 1);
2976 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2978 MonoMethodSignature *sig;
2979 MonoMethodBuilder *mb;
2985 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2986 !strcmp (method->name, "BeginInvoke"));
2988 sig = mono_signature_no_pinvoke (method);
2990 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2991 (GHashFunc)mono_signature_hash,
2992 (GCompareFunc)mono_metadata_signature_equal);
2993 if ((res = mono_marshal_find_in_cache (cache, sig)))
2996 g_assert (sig->hasthis);
2998 name = mono_signature_to_name (sig, "begin_invoke");
2999 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3002 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3004 mono_mb_emit_ldarg (mb, 0);
3005 mono_mb_emit_ldloc (mb, params_var);
3006 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3007 mono_mb_emit_byte (mb, CEE_RET);
3009 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3015 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3017 MonoDomain *domain = mono_domain_get ();
3018 MonoAsyncResult *ares;
3019 MonoMethod *method = NULL;
3020 MonoMethodSignature *sig;
3021 MonoMethodMessage *msg;
3022 MonoObject *res, *exc;
3023 MonoArray *out_args;
3026 g_assert (delegate);
3028 if (!delegate->method_info) {
3029 g_assert (delegate->method);
3030 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
3033 if (!delegate->method_info || !delegate->method_info->method)
3034 g_assert_not_reached ();
3036 klass = delegate->object.vtable->klass;
3038 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3039 g_assert (method != NULL);
3041 sig = mono_signature_no_pinvoke (method);
3043 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3045 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
3047 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."));
3049 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
3050 mono_raise_exception (mono_get_exception_invalid_operation (
3051 "The IAsyncResult object provided does not match this delegate."));
3055 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
3056 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3057 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
3058 mono_message_init (domain, msg, delegate->method_info, NULL);
3059 msg->call_type = CallType_EndInvoke;
3060 MONO_OBJECT_SETREF (msg, async_result, ares);
3061 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
3063 res = mono_thread_pool_finish (ares, &out_args, &exc);
3067 if (((MonoException*)exc)->stack_trace) {
3068 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3070 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3072 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3075 mono_raise_exception ((MonoException*)exc);
3078 mono_method_return_message_restore (method, params, out_args);
3083 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3085 MonoType *t = mono_type_get_underlying_type (return_type);
3087 if (return_type->byref)
3088 return_type = &mono_defaults.int_class->byval_arg;
3091 case MONO_TYPE_VOID:
3092 g_assert_not_reached ();
3095 case MONO_TYPE_STRING:
3096 case MONO_TYPE_CLASS:
3097 case MONO_TYPE_OBJECT:
3098 case MONO_TYPE_ARRAY:
3099 case MONO_TYPE_SZARRAY:
3103 case MONO_TYPE_BOOLEAN:
3106 case MONO_TYPE_CHAR:
3116 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3117 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3119 case MONO_TYPE_GENERICINST:
3120 if (!mono_type_generic_inst_is_valuetype (return_type))
3123 case MONO_TYPE_VALUETYPE: {
3124 MonoClass *klass = mono_class_from_mono_type (return_type);
3125 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3126 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3130 g_warning ("type 0x%x not handled", return_type->type);
3131 g_assert_not_reached ();
3134 mono_mb_emit_byte (mb, CEE_RET);
3138 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3140 MonoMethodSignature *sig;
3141 MonoMethodBuilder *mb;
3147 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3148 !strcmp (method->name, "EndInvoke"));
3150 sig = mono_signature_no_pinvoke (method);
3152 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
3153 (GHashFunc)mono_signature_hash,
3154 (GCompareFunc)mono_metadata_signature_equal);
3155 if ((res = mono_marshal_find_in_cache (cache, sig)))
3158 g_assert (sig->hasthis);
3160 name = mono_signature_to_name (sig, "end_invoke");
3161 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3164 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3166 mono_mb_emit_ldarg (mb, 0);
3167 mono_mb_emit_ldloc (mb, params_var);
3168 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3170 if (sig->ret->type == MONO_TYPE_VOID) {
3171 mono_mb_emit_byte (mb, CEE_POP);
3172 mono_mb_emit_byte (mb, CEE_RET);
3174 mono_mb_emit_restore_result (mb, sig->ret);
3176 res = mono_mb_create_and_cache (cache, sig,
3177 mb, sig, sig->param_count + 16);
3184 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3186 MonoMethodMessage *msg;
3187 MonoTransparentProxy *this;
3188 MonoObject *res, *exc;
3189 MonoArray *out_args;
3191 this = *((MonoTransparentProxy **)params [0]);
3194 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3196 /* skip the this pointer */
3199 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3202 MonoMethodSignature *sig = mono_method_signature (method);
3203 int count = sig->param_count;
3204 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3206 for (i=0; i<count; i++) {
3207 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3208 if (class->valuetype) {
3209 if (sig->params [i]->byref) {
3210 mparams[i] = *((gpointer *)params [i]);
3212 /* runtime_invoke expects a boxed instance */
3213 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
3214 mparams[i] = mono_nullable_box (params [i], class);
3216 mparams[i] = params [i];
3219 mparams[i] = *((gpointer**)params [i]);
3223 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3226 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3228 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3231 mono_raise_exception ((MonoException *)exc);
3233 mono_method_return_message_restore (method, params, out_args);
3241 * cominterop_get_native_wrapper_adjusted:
3242 * @method: managed COM Interop method
3244 * Returns: the generated method to call with signature matching
3245 * the unmanaged COM Method signature
3248 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3251 MonoMethodBuilder *mb_native;
3252 MonoMarshalSpec **mspecs;
3253 MonoMethodSignature *sig, *sig_native;
3254 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3257 sig = mono_method_signature (method);
3259 // create unmanaged wrapper
3260 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3261 sig_native = cominterop_method_signature (method);
3263 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3264 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3266 mono_method_get_marshal_info (method, mspecs);
3268 // move managed args up one
3269 for (i = sig->param_count; i >= 1; i--)
3270 mspecs[i+1] = mspecs[i];
3272 // first arg is IntPtr for interface
3275 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3276 // move return spec to last param
3277 if (!MONO_TYPE_IS_VOID (sig->ret))
3278 mspecs[sig_native->param_count] = mspecs[0];
3283 for (i = 1; i < sig_native->param_count; i++) {
3284 int mspec_index = i + 1;
3285 if (mspecs[mspec_index] == NULL) {
3286 // default object to VARIANT
3287 if (sig_native->params[i]->type == MONO_TYPE_OBJECT) {
3288 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3289 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
3291 else if (sig_native->params[i]->type == MONO_TYPE_STRING) {
3292 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3293 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
3295 else if (sig_native->params[i]->type == MONO_TYPE_CLASS) {
3296 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
3297 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
3302 if (method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG) {
3303 // move return spec to last param
3304 if (!MONO_TYPE_IS_VOID (sig->ret) && mspecs[0] == NULL) {
3305 // default object to VARIANT
3306 if (sig->ret->type == MONO_TYPE_OBJECT) {
3307 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3308 mspecs[0]->native = MONO_NATIVE_STRUCT;
3310 else if (sig->ret->type == MONO_TYPE_STRING) {
3311 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3312 mspecs[0]->native = MONO_NATIVE_BSTR;
3314 else if (sig->ret->type == MONO_TYPE_CLASS) {
3315 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
3316 mspecs[0]->native = MONO_NATIVE_INTERFACE;
3321 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, FALSE, TRUE);
3323 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3325 mono_mb_free (mb_native);
3327 for (i = sig_native->param_count; i >= 0; i--)
3329 mono_metadata_free_marshal_spec (mspecs [i]);
3336 * cominterop_get_native_wrapper:
3337 * @method: managed method
3339 * Returns: the generated method to call
3342 cominterop_get_native_wrapper (MonoMethod *method)
3346 MonoMethodBuilder *mb;
3347 MonoMethodSignature *sig, *csig;
3351 cache = get_cache (&method->klass->image->cominterop_wrapper_cache, mono_aligned_addr_hash, NULL);
3352 if ((res = mono_marshal_find_in_cache (cache, method)))
3355 mono_init_com_types ();
3357 if (!method->klass->vtable)
3358 mono_class_setup_vtable (method->klass);
3360 if (!method->klass->methods)
3361 mono_class_setup_methods (method->klass);
3363 sig = mono_method_signature (method);
3364 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3366 /* if method klass is import, that means method
3367 * is really a com call. let interop system emit it.
3369 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3370 /* FIXME: we have to call actual class .ctor
3371 * instead of just __ComObject .ctor.
3373 if (!strcmp(method->name, ".ctor")) {
3374 static MonoMethod *ctor = NULL;
3377 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3378 mono_mb_emit_ldarg (mb, 0);
3379 mono_mb_emit_managed_call (mb, ctor, NULL);
3380 mono_mb_emit_byte (mb, CEE_RET);
3383 static MonoMethod * ThrowExceptionForHR = NULL;
3384 MonoMethod *adjusted_method;
3388 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3390 // add local variables
3391 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3392 if (!MONO_TYPE_IS_VOID (sig->ret))
3393 retval = mono_mb_add_local (mb, sig->ret);
3395 // get the type for the interface the method is defined on
3396 // and then get the underlying COM interface for that type
3397 mono_mb_emit_ldarg (mb, 0);
3398 mono_mb_emit_ptr (mb, method);
3399 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3400 mono_mb_emit_icon (mb, TRUE);
3401 mono_mb_emit_icall (mb, cominterop_get_interface);
3402 mono_mb_emit_stloc (mb, ptr_this);
3404 // arg 1 is unmanaged this pointer
3405 mono_mb_emit_ldloc (mb, ptr_this);
3408 for (i = 1; i <= sig->param_count; i++)
3409 mono_mb_emit_ldarg (mb, i);
3411 // push managed return value as byref last argument
3412 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3413 mono_mb_emit_ldloc_addr (mb, retval);
3415 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3416 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3418 if (!preserve_sig) {
3419 if (!ThrowExceptionForHR)
3420 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3421 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3423 // load return value managed is expecting
3424 if (!MONO_TYPE_IS_VOID (sig->ret))
3425 mono_mb_emit_ldloc (mb, retval);
3428 mono_mb_emit_byte (mb, CEE_RET);
3433 /* Does this case ever get hit? */
3435 char *msg = g_strdup ("non imported interfaces on \
3436 imported classes is not yet implemented.");
3437 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3439 csig = signature_dup (method->klass->image, sig);
3441 res = mono_mb_create_and_cache (cache, method,
3442 mb, csig, csig->param_count + 16);
3448 * cominterop_get_invoke:
3449 * @method: managed method
3451 * Returns: the generated method that calls the underlying __ComObject
3452 * rather than the proxy object.
3455 cominterop_get_invoke (MonoMethod *method)
3457 MonoMethodSignature *sig;
3458 MonoMethodBuilder *mb;
3461 GHashTable* cache = get_cache (&method->klass->image->cominterop_invoke_cache, mono_aligned_addr_hash, NULL);
3465 if ((res = mono_marshal_find_in_cache (cache, method)))
3468 sig = mono_signature_no_pinvoke (method);
3470 /* we cant remote methods without this pointer */
3474 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3476 /* get real proxy object, which is a ComInteropProxy in this case*/
3477 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3478 mono_mb_emit_ldarg (mb, 0);
3479 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3480 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3482 /* load the RCW from the ComInteropProxy*/
3483 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3484 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3486 /* load args and make the call on the RCW */
3487 for (i = 1; i <= sig->param_count; i++)
3488 mono_mb_emit_ldarg (mb, i);
3490 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3491 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3492 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3495 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3496 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3498 mono_mb_emit_op (mb, CEE_CALL, method);
3501 if (!strcmp(method->name, ".ctor")) {
3502 static MonoClass *com_interop_proxy_class = NULL;
3503 static MonoMethod *cache_proxy = NULL;
3505 if (!com_interop_proxy_class)
3506 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3508 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3510 mono_mb_emit_ldarg (mb, 0);
3511 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3512 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3513 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3516 emit_thread_interrupt_checkpoint (mb);
3518 mono_mb_emit_byte (mb, CEE_RET);
3520 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3526 #endif /* DISABLE_COM */
3528 /* Maps a managed object to its unmanaged representation
3529 * i.e. it's COM Callable Wrapper (CCW).
3533 static GHashTable* ccw_hash = NULL;
3535 /* Maps a CCW interface to it's containing CCW.
3536 * Note that a CCW support many interfaces.
3538 * Value: MonoCCWInterface*
3540 static GHashTable* ccw_interface_hash = NULL;
3542 /* Maps the IUnknown value of a RCW to
3543 * it's MonoComInteropProxy*.
3547 static GHashTable* rcw_hash = NULL;
3550 mono_marshal_get_remoting_invoke (MonoMethod *method)
3552 MonoMethodSignature *sig;
3553 MonoMethodBuilder *mb;
3559 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3562 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3563 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
3565 return cominterop_get_invoke(method);
3567 g_assert_not_reached ();
3571 sig = mono_signature_no_pinvoke (method);
3573 /* we cant remote methods without this pointer */
3577 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3580 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3581 mb->method->save_lmf = 1;
3583 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3585 mono_mb_emit_ptr (mb, method);
3586 mono_mb_emit_ldloc (mb, params_var);
3587 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3588 emit_thread_interrupt_checkpoint (mb);
3590 if (sig->ret->type == MONO_TYPE_VOID) {
3591 mono_mb_emit_byte (mb, CEE_POP);
3592 mono_mb_emit_byte (mb, CEE_RET);
3594 mono_mb_emit_restore_result (mb, sig->ret);
3597 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3603 /* mono_get_xdomain_marshal_type()
3604 * Returns the kind of marshalling that a type needs for cross domain calls.
3606 static MonoXDomainMarshalType
3607 mono_get_xdomain_marshal_type (MonoType *t)
3610 case MONO_TYPE_VOID:
3611 g_assert_not_reached ();
3615 case MONO_TYPE_BOOLEAN:
3618 case MONO_TYPE_CHAR:
3625 return MONO_MARSHAL_NONE;
3626 case MONO_TYPE_STRING:
3627 return MONO_MARSHAL_COPY;
3628 case MONO_TYPE_ARRAY:
3629 case MONO_TYPE_SZARRAY: {
3630 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3631 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3632 return MONO_MARSHAL_COPY;
3637 return MONO_MARSHAL_SERIALIZE;
3641 /* mono_marshal_xdomain_copy_value
3642 * Makes a copy of "val" suitable for the current domain.
3645 mono_marshal_xdomain_copy_value (MonoObject *val)
3648 if (val == NULL) return NULL;
3650 domain = mono_domain_get ();
3652 switch (mono_object_class (val)->byval_arg.type) {
3653 case MONO_TYPE_VOID:
3654 g_assert_not_reached ();
3658 case MONO_TYPE_BOOLEAN:
3661 case MONO_TYPE_CHAR:
3667 case MONO_TYPE_R8: {
3668 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3670 case MONO_TYPE_STRING: {
3671 MonoString *str = (MonoString *) val;
3672 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3674 case MONO_TYPE_ARRAY:
3675 case MONO_TYPE_SZARRAY: {
3677 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3678 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3679 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3680 if (mt == MONO_MARSHAL_COPY) {
3681 int i, len = mono_array_length (acopy);
3682 for (i = 0; i < len; i++) {
3683 MonoObject *item = mono_array_get (acopy, gpointer, i);
3684 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3687 return (MonoObject *) acopy;
3691 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3692 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3693 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3694 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3695 newsb->length = oldsb->length;
3696 newsb->max_capacity = (gint32)0x7fffffff;
3697 return (MonoObject *) newsb;
3702 /* mono_marshal_xdomain_copy_out_value()
3703 * Copies the contents of the src instance into the dst instance. src and dst
3704 * must have the same type, and if they are arrays, the same size.
3707 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3709 if (src == NULL || dst == NULL) return;
3711 g_assert (mono_object_class (src) == mono_object_class (dst));
3713 switch (mono_object_class (src)->byval_arg.type) {
3714 case MONO_TYPE_ARRAY:
3715 case MONO_TYPE_SZARRAY: {
3716 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3717 if (mt == MONO_MARSHAL_SERIALIZE) return;
3718 if (mt == MONO_MARSHAL_COPY) {
3719 int i, len = mono_array_length ((MonoArray *)dst);
3720 for (i = 0; i < len; i++) {
3721 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3722 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3725 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3731 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3732 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3733 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3735 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)));
3736 dst_sb->cached_str = NULL;
3737 dst_sb->length = src_sb->length;
3742 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3744 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3745 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3749 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3751 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3754 /* mono_marshal_supports_fast_xdomain()
3755 * Returns TRUE if the method can use the fast xdomain wrapper.
3758 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3760 return !method->klass->contextbound &&
3761 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3765 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3767 MonoDomain *current_domain = mono_domain_get ();
3768 MonoDomain *domain = mono_domain_get_by_id (id);
3770 if (!domain || !mono_domain_set (domain, FALSE))
3771 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3774 mono_thread_push_appdomain_ref (domain);
3776 mono_thread_pop_appdomain_ref ();
3778 return current_domain->domain_id;
3782 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3784 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3787 /* mono_marshal_emit_load_domain_method ()
3788 * Loads into the stack a pointer to the code of the provided method for
3789 * the current domain.
3792 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3794 /* We need a pointer to the method for the running domain (not the domain
3795 * that compiles the method).
3797 mono_mb_emit_ptr (mb, method);
3798 mono_mb_emit_icall (mb, mono_compile_method);
3801 /* mono_marshal_check_domain_image ()
3802 * Returns TRUE if the image is loaded in the specified
3803 * application domain.
3806 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3811 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3815 mono_domain_assemblies_lock (domain);
3816 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3818 if (ass->image == image)
3821 mono_domain_assemblies_unlock (domain);
3826 /* mono_marshal_get_xappdomain_dispatch ()
3827 * Generates a method that dispatches a method call from another domain into
3828 * the current domain.
3831 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3833 MonoMethodSignature *sig, *csig;
3834 MonoMethodBuilder *mb;
3836 int i, j, param_index, copy_locals_base;
3837 MonoClass *ret_class = NULL;
3838 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3839 MonoExceptionClause *main_clause;
3841 gboolean copy_return;
3843 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3846 sig = mono_method_signature (method);
3847 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3850 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3851 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3852 csig->params [j++] = &byte_array_class->this_arg;
3853 csig->params [j++] = &byte_array_class->this_arg;
3854 for (i = 0; i < sig->param_count; i++) {
3855 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3856 csig->params [j++] = sig->params [i];
3859 csig->ret = sig->ret;
3861 csig->ret = &mono_defaults.void_class->byval_arg;
3863 csig->hasthis = FALSE;
3865 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3866 mb->method->save_lmf = 1;
3870 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3871 if (complex_count > 0)
3872 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3873 if (sig->ret->type != MONO_TYPE_VOID) {
3874 loc_return = mono_mb_add_local (mb, sig->ret);
3875 ret_class = mono_class_from_mono_type (sig->ret);
3880 mono_loader_lock ();
3881 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3882 mono_loader_unlock ();
3883 main_clause->try_offset = mono_mb_get_label (mb);
3885 /* Clean the call context */
3887 mono_mb_emit_byte (mb, CEE_LDNULL);
3888 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3889 mono_mb_emit_byte (mb, CEE_POP);
3891 /* Deserialize call data */
3893 mono_mb_emit_ldarg (mb, 1);
3894 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3895 mono_mb_emit_byte (mb, CEE_DUP);
3896 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3898 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3899 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3901 if (complex_count > 0)
3902 mono_mb_emit_stloc (mb, loc_array);
3904 mono_mb_emit_byte (mb, CEE_POP);
3906 mono_mb_patch_short_branch (mb, pos);
3908 /* Get the target object */
3910 mono_mb_emit_ldarg (mb, 0);
3911 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3913 /* Load the arguments */
3915 copy_locals_base = mb->locals;
3916 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3918 for (i = 0; i < sig->param_count; i++) {
3919 MonoType *pt = sig->params [i];
3920 MonoClass *pclass = mono_class_from_mono_type (pt);
3921 switch (marshal_types [i]) {
3922 case MONO_MARSHAL_SERIALIZE: {
3923 /* take the value from the serialized array */
3924 mono_mb_emit_ldloc (mb, loc_array);
3925 mono_mb_emit_icon (mb, j++);
3927 if (pclass->valuetype) {
3928 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3929 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3931 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3934 if (pclass->valuetype) {
3935 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3936 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3937 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3939 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3940 if (pclass != mono_defaults.object_class) {
3941 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3947 case MONO_MARSHAL_COPY_OUT: {
3948 /* Keep a local copy of the value since we need to copy it back after the call */
3949 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3950 mono_mb_emit_ldarg (mb, param_index++);
3951 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3952 mono_mb_emit_byte (mb, CEE_DUP);
3953 mono_mb_emit_stloc (mb, copy_local);
3956 case MONO_MARSHAL_COPY: {
3957 mono_mb_emit_ldarg (mb, param_index);
3959 mono_mb_emit_byte (mb, CEE_DUP);
3960 mono_mb_emit_byte (mb, CEE_DUP);
3961 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3962 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3963 mono_mb_emit_byte (mb, CEE_STIND_REF);
3965 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3970 case MONO_MARSHAL_NONE:
3971 mono_mb_emit_ldarg (mb, param_index++);
3976 /* Make the call to the real object */
3978 emit_thread_force_interrupt_checkpoint (mb);
3980 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3982 if (sig->ret->type != MONO_TYPE_VOID)
3983 mono_mb_emit_stloc (mb, loc_return);
3985 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3989 for (i = 0; i < sig->param_count; i++) {
3990 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3991 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3992 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3993 mono_mb_emit_ldarg (mb, param_index);
3994 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3999 /* Serialize the return values */
4001 if (complex_out_count > 0) {
4002 /* Reset parameters in the array that don't need to be serialized back */
4004 for (i = 0; i < sig->param_count; i++) {
4005 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
4006 if (!sig->params [i]->byref) {
4007 mono_mb_emit_ldloc (mb, loc_array);
4008 mono_mb_emit_icon (mb, j);
4009 mono_mb_emit_byte (mb, CEE_LDNULL);
4010 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4015 /* Add the return value to the array */
4017 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4018 mono_mb_emit_ldloc (mb, loc_array);
4019 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
4020 mono_mb_emit_ldloc (mb, loc_return);
4021 if (ret_class->valuetype) {
4022 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4024 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4029 mono_mb_emit_ldarg (mb, 1);
4030 mono_mb_emit_ldloc (mb, loc_array);
4031 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4032 mono_mb_emit_byte (mb, CEE_STIND_REF);
4033 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4034 mono_mb_emit_ldarg (mb, 1);
4035 mono_mb_emit_ldloc (mb, loc_return);
4036 if (ret_class->valuetype) {
4037 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4039 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4040 mono_mb_emit_byte (mb, CEE_STIND_REF);
4042 mono_mb_emit_ldarg (mb, 1);
4043 mono_mb_emit_byte (mb, CEE_LDNULL);
4044 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4045 mono_mb_emit_byte (mb, CEE_STIND_REF);
4048 mono_mb_emit_ldarg (mb, 2);
4049 mono_mb_emit_byte (mb, CEE_LDNULL);
4050 mono_mb_emit_byte (mb, CEE_STIND_REF);
4051 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
4053 /* Main exception catch */
4054 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4055 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
4056 main_clause->data.catch_class = mono_defaults.object_class;
4059 main_clause->handler_offset = mono_mb_get_label (mb);
4060 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
4061 mono_mb_emit_stloc (mb, loc_serialized_exc);
4062 mono_mb_emit_ldarg (mb, 2);
4063 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4064 mono_mb_emit_byte (mb, CEE_STIND_REF);
4065 mono_mb_emit_branch (mb, CEE_LEAVE);
4066 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
4069 mono_mb_patch_branch (mb, pos_leave);
4072 mono_mb_emit_ldloc (mb, loc_return);
4074 mono_mb_emit_byte (mb, CEE_RET);
4076 mono_mb_set_clauses (mb, 1, main_clause);
4078 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
4084 /* mono_marshal_get_xappdomain_invoke ()
4085 * Generates a fast remoting wrapper for cross app domain calls.
4088 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
4090 MonoMethodSignature *sig;
4091 MonoMethodBuilder *mb;
4093 int i, j, complex_count, complex_out_count, copy_locals_base;
4095 MonoClass *ret_class = NULL;
4096 MonoMethod *xdomain_method;
4097 int ret_marshal_type = MONO_MARSHAL_NONE;
4098 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
4099 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
4100 int pos, pos_dispatch, pos_noex;
4101 gboolean copy_return = FALSE;
4105 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
4108 /* we cant remote methods without this pointer */
4109 if (!mono_method_signature (method)->hasthis)
4112 if (!mono_marshal_supports_fast_xdomain (method))
4113 return mono_marshal_get_remoting_invoke (method);
4115 mono_remoting_marshal_init ();
4117 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
4120 sig = mono_signature_no_pinvoke (method);
4122 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
4123 mb->method->save_lmf = 1;
4125 /* Count the number of parameters that need to be serialized */
4127 marshal_types = alloca (sizeof (int) * sig->param_count);
4128 complex_count = complex_out_count = 0;
4129 for (i = 0; i < sig->param_count; i++) {
4130 MonoType *ptype = sig->params[i];
4131 int mt = mono_get_xdomain_marshal_type (ptype);
4133 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4134 * the copy will be made by reusing the original object instance
4136 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4137 mt = MONO_MARSHAL_COPY_OUT;
4138 else if (mt == MONO_MARSHAL_SERIALIZE) {
4140 if (ptype->byref) complex_out_count++;
4142 marshal_types [i] = mt;
4145 if (sig->ret->type != MONO_TYPE_VOID) {
4146 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4147 ret_class = mono_class_from_mono_type (sig->ret);
4148 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4153 if (complex_count > 0)
4154 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4155 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4156 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4158 loc_return = mono_mb_add_local (mb, sig->ret);
4159 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4160 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4161 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4162 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4164 /* Save thread domain data */
4166 mono_mb_emit_icall (mb, mono_context_get);
4167 mono_mb_emit_byte (mb, CEE_DUP);
4168 mono_mb_emit_stloc (mb, loc_context);
4170 /* If the thread is not running in the default context, it needs to go
4171 * through the whole remoting sink, since the context is going to change
4173 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4174 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4176 /* Another case in which the fast path can't be used: when the target domain
4177 * has a different image for the same assembly.
4180 /* Get the target domain id */
4182 mono_mb_emit_ldarg (mb, 0);
4183 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4184 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4185 mono_mb_emit_byte (mb, CEE_DUP);
4186 mono_mb_emit_stloc (mb, loc_real_proxy);
4188 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4189 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4190 mono_mb_emit_stloc (mb, loc_domainid);
4192 /* Check if the target domain has the same image for the required assembly */
4194 mono_mb_emit_ldloc (mb, loc_domainid);
4195 mono_mb_emit_ptr (mb, method->klass->image);
4196 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4197 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4199 /* Use the whole remoting sink to dispatch this message */
4201 mono_mb_patch_short_branch (mb, pos);
4203 mono_mb_emit_ldarg (mb, 0);
4204 for (i = 0; i < sig->param_count; i++)
4205 mono_mb_emit_ldarg (mb, i + 1);
4207 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4208 mono_mb_emit_byte (mb, CEE_RET);
4209 mono_mb_patch_short_branch (mb, pos_dispatch);
4211 /* Create the array that will hold the parameters to be serialized */
4213 if (complex_count > 0) {
4214 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 */
4215 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4218 for (i = 0; i < sig->param_count; i++) {
4220 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4221 pclass = mono_class_from_mono_type (sig->params[i]);
4222 mono_mb_emit_byte (mb, CEE_DUP);
4223 mono_mb_emit_icon (mb, j);
4224 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4225 if (sig->params[i]->byref) {
4226 if (pclass->valuetype)
4227 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4229 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4231 if (pclass->valuetype)
4232 mono_mb_emit_op (mb, CEE_BOX, pclass);
4233 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4236 mono_mb_emit_stloc (mb, loc_array);
4238 /* Serialize parameters */
4240 mono_mb_emit_ldloc (mb, loc_array);
4241 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4242 mono_mb_emit_stloc (mb, loc_serialized_data);
4244 mono_mb_emit_byte (mb, CEE_LDNULL);
4245 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4246 mono_mb_emit_stloc (mb, loc_serialized_data);
4251 mono_mb_emit_ldloc (mb, loc_domainid);
4252 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4253 mono_marshal_emit_switch_domain (mb);
4254 mono_mb_emit_stloc (mb, loc_old_domainid);
4256 /* Load the arguments */
4258 mono_mb_emit_ldloc (mb, loc_real_proxy);
4259 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4260 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4262 copy_locals_base = mb->locals;
4263 for (i = 0; i < sig->param_count; i++) {
4264 switch (marshal_types [i]) {
4265 case MONO_MARSHAL_SERIALIZE:
4267 case MONO_MARSHAL_COPY: {
4268 mono_mb_emit_ldarg (mb, i+1);
4269 if (sig->params [i]->byref) {
4270 /* make a local copy of the byref parameter. The real parameter
4271 * will be updated after the xdomain call
4273 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4274 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4275 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4276 mono_mb_emit_stloc (mb, copy_local);
4277 mono_mb_emit_ldloc_addr (mb, copy_local);
4281 case MONO_MARSHAL_COPY_OUT:
4282 case MONO_MARSHAL_NONE:
4283 mono_mb_emit_ldarg (mb, i+1);
4288 /* Make the call to the invoke wrapper in the target domain */
4290 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4291 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4292 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4295 mono_mb_emit_stloc (mb, loc_return);
4299 mono_mb_emit_ldloc (mb, loc_old_domainid);
4300 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4301 mono_marshal_emit_switch_domain (mb);
4302 mono_mb_emit_byte (mb, CEE_POP);
4304 /* Restore thread domain data */
4306 mono_mb_emit_ldloc (mb, loc_context);
4307 mono_mb_emit_icall (mb, mono_context_set);
4309 /* if (loc_serialized_exc != null) ... */
4311 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4312 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4314 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4315 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4316 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4317 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4318 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4319 mono_mb_emit_byte (mb, CEE_THROW);
4320 mono_mb_patch_short_branch (mb, pos_noex);
4322 /* copy back non-serialized output parameters */
4325 for (i = 0; i < sig->param_count; i++) {
4326 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4327 mono_mb_emit_ldarg (mb, i + 1);
4328 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4329 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4330 mono_mb_emit_byte (mb, CEE_STIND_REF);
4333 /* Deserialize out parameters */
4335 if (complex_out_count > 0) {
4336 mono_mb_emit_ldloc (mb, loc_serialized_data);
4337 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4338 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4339 mono_mb_emit_stloc (mb, loc_array);
4341 /* Copy back output parameters and return type */
4344 for (i = 0; i < sig->param_count; i++) {
4345 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4346 if (sig->params[i]->byref) {
4347 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4348 mono_mb_emit_ldarg (mb, i + 1);
4349 mono_mb_emit_ldloc (mb, loc_array);
4350 mono_mb_emit_icon (mb, j);
4351 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4352 if (pclass->valuetype) {
4353 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4354 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4355 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4357 if (pclass != mono_defaults.object_class)
4358 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4359 mono_mb_emit_byte (mb, CEE_STIND_REF);
4365 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4366 mono_mb_emit_ldloc (mb, loc_array);
4367 mono_mb_emit_icon (mb, complex_count);
4368 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4369 if (ret_class->valuetype) {
4370 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4371 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4374 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4375 mono_mb_emit_ldloc (mb, loc_serialized_data);
4376 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4377 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4378 if (ret_class->valuetype) {
4379 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4380 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4381 } else if (ret_class != mono_defaults.object_class) {
4382 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4385 mono_mb_emit_ldloc (mb, loc_serialized_data);
4386 mono_mb_emit_byte (mb, CEE_DUP);
4387 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4388 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4390 mono_mb_patch_short_branch (mb, pos);
4391 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4392 mono_mb_emit_byte (mb, CEE_POP);
4396 mono_mb_emit_ldloc (mb, loc_return);
4397 if (ret_marshal_type == MONO_MARSHAL_COPY)
4398 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4401 mono_mb_emit_byte (mb, CEE_RET);
4403 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4410 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4412 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
4413 return mono_marshal_get_xappdomain_invoke (method);
4414 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
4416 return cominterop_get_invoke (method);
4418 g_assert_not_reached ();
4421 return mono_marshal_get_remoting_invoke (method);
4425 G_GNUC_UNUSED static gpointer
4426 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4428 if (rp->target_domain_id != -1)
4429 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4431 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4435 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4437 MonoMethodSignature *sig;
4438 MonoMethodBuilder *mb;
4439 MonoMethod *res, *native;
4440 int i, pos, pos_rem;
4444 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4447 /* we cant remote methods without this pointer */
4448 g_assert (mono_method_signature (method)->hasthis);
4450 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4453 sig = mono_signature_no_pinvoke (method);
4455 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4457 for (i = 0; i <= sig->param_count; i++)
4458 mono_mb_emit_ldarg (mb, i);
4460 mono_mb_emit_ldarg (mb, 0);
4461 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4463 if (mono_marshal_supports_fast_xdomain (method)) {
4464 mono_mb_emit_ldarg (mb, 0);
4465 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4467 /* wrapper for cross app domain calls */
4468 native = mono_marshal_get_xappdomain_invoke (method);
4469 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4470 mono_mb_emit_byte (mb, CEE_RET);
4472 mono_mb_patch_branch (mb, pos_rem);
4474 /* wrapper for normal remote calls */
4475 native = mono_marshal_get_remoting_invoke (method);
4476 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4477 mono_mb_emit_byte (mb, CEE_RET);
4480 mono_mb_patch_branch (mb, pos);
4481 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4482 mono_mb_emit_byte (mb, CEE_RET);
4484 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4492 MonoMethodSignature *sig;
4494 } SignatureMethodPair;
4497 signature_method_pair_hash (gconstpointer data)
4499 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4501 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4505 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4507 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4511 free_signature_method_pair (SignatureMethodPair *pair)
4517 * the returned method invokes all methods in a multicast delegate.
4520 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4522 MonoMethodSignature *sig, *static_sig;
4524 MonoMethodBuilder *mb;
4525 MonoMethod *res, *newm;
4527 SignatureMethodPair key;
4528 SignatureMethodPair *new_key;
4529 int local_prev, local_target;
4532 MonoMethod *target_method = NULL;
4533 MonoClass *target_class = NULL;
4534 gboolean callvirt = FALSE;
4537 * If the delegate target is null, and the target method is not static, a virtual
4538 * call is made to that method with the first delegate argument as this. This is
4539 * a non-documented .NET feature.
4541 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4543 target_method = del->method;
4544 if (target_method->is_inflated) {
4545 MonoType *target_type;
4547 g_assert (method->signature->hasthis);
4548 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4549 mono_method_get_context (method));
4550 target_class = mono_class_from_mono_type (target_type);
4552 target_class = del->method->klass;
4556 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4557 !strcmp (method->name, "Invoke"));
4559 sig = mono_signature_no_pinvoke (method);
4562 /* We need to cache the signature+method pair */
4563 mono_marshal_lock ();
4564 if (!method->klass->image->delegate_abstract_invoke_cache)
4565 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);
4566 cache = method->klass->image->delegate_abstract_invoke_cache;
4568 key.method = target_method;
4569 res = g_hash_table_lookup (cache, &key);
4570 mono_marshal_unlock ();
4574 cache = get_cache (&method->klass->image->delegate_invoke_cache,
4575 (GHashFunc)mono_signature_hash,
4576 (GCompareFunc)mono_metadata_signature_equal);
4577 if ((res = mono_marshal_find_in_cache (cache, sig)))
4581 static_sig = signature_dup (method->klass->image, sig);
4582 static_sig->hasthis = 0;
4584 name = mono_signature_to_name (sig, "invoke");
4585 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
4588 /* allocate local 0 (object) */
4589 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4590 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4592 g_assert (sig->hasthis);
4596 * prev.Invoke( args .. );
4597 * return this.<target>( args .. );
4600 /* this wrapper can be used in unmanaged-managed transitions */
4601 emit_thread_interrupt_checkpoint (mb);
4603 /* get this->prev */
4604 mono_mb_emit_ldarg (mb, 0);
4605 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4606 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4607 mono_mb_emit_stloc (mb, local_prev);
4608 mono_mb_emit_ldloc (mb, local_prev);
4610 /* if prev != null */
4611 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4615 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4616 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4618 mono_mb_emit_ldloc (mb, local_prev);
4619 for (i = 0; i < sig->param_count; i++)
4620 mono_mb_emit_ldarg (mb, i + 1);
4621 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4622 if (sig->ret->type != MONO_TYPE_VOID)
4623 mono_mb_emit_byte (mb, CEE_POP);
4625 /* continued or prev == null */
4626 mono_mb_patch_branch (mb, pos0);
4628 /* get this->target */
4629 mono_mb_emit_ldarg (mb, 0);
4630 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4631 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4632 mono_mb_emit_stloc (mb, local_target);
4634 /* if target != null */
4635 mono_mb_emit_ldloc (mb, local_target);
4636 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4638 /* then call this->method_ptr nonstatic */
4641 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4643 mono_mb_emit_ldloc (mb, local_target);
4644 for (i = 0; i < sig->param_count; ++i)
4645 mono_mb_emit_ldarg (mb, i + 1);
4646 mono_mb_emit_ldarg (mb, 0);
4647 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4648 mono_mb_emit_byte (mb, CEE_LDIND_I );
4649 mono_mb_emit_op (mb, CEE_CALLI, sig);
4651 mono_mb_emit_byte (mb, CEE_RET);
4654 /* else [target == null] call this->method_ptr static */
4655 mono_mb_patch_branch (mb, pos0);
4658 mono_mb_emit_ldarg (mb, 1);
4659 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4660 for (i = 1; i < sig->param_count; ++i)
4661 mono_mb_emit_ldarg (mb, i + 1);
4662 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4664 for (i = 0; i < sig->param_count; ++i)
4665 mono_mb_emit_ldarg (mb, i + 1);
4666 mono_mb_emit_ldarg (mb, 0);
4667 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4668 mono_mb_emit_byte (mb, CEE_LDIND_I );
4669 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4672 mono_mb_emit_byte (mb, CEE_RET);
4675 // From mono_mb_create_and_cache
4676 mb->skip_visibility = 1;
4677 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4678 /*We perform double checked locking, so must fence before publishing*/
4679 mono_memory_barrier ();
4680 mono_marshal_lock ();
4681 res = g_hash_table_lookup (cache, &key);
4684 new_key = g_new0 (SignatureMethodPair, 1);
4686 new_key->method = target_method;
4687 g_hash_table_insert (cache, new_key, res);
4688 mono_marshal_method_set_wrapper_data (res, new_key);
4689 mono_marshal_unlock ();
4691 mono_marshal_unlock ();
4692 mono_free_method (newm);
4695 mb->skip_visibility = 1;
4696 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4704 * signature_dup_add_this:
4706 * Make a copy of @sig, adding an explicit this argument.
4708 static MonoMethodSignature*
4709 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4711 MonoMethodSignature *res;
4714 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4715 memcpy (res, sig, sizeof (MonoMethodSignature));
4716 res->param_count = sig->param_count + 1;
4717 res->hasthis = FALSE;
4718 for (i = sig->param_count - 1; i >= 0; i --)
4719 res->params [i + 1] = sig->params [i];
4720 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4726 MonoMethodSignature *ctor_sig;
4727 MonoMethodSignature *sig;
4730 /* protected by the marshal lock, contains CtorSigPair pointers */
4731 static GSList *strsig_list = NULL;
4733 static MonoMethodSignature *
4734 lookup_string_ctor_signature (MonoMethodSignature *sig)
4736 MonoMethodSignature *callsig;
4740 mono_marshal_lock ();
4742 for (item = strsig_list; item; item = item->next) {
4744 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4745 * because it is lock-free.
4747 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4752 mono_marshal_unlock ();
4756 static MonoMethodSignature *
4757 add_string_ctor_signature (MonoMethod *method)
4759 MonoMethodSignature *callsig;
4762 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4763 callsig->ret = &mono_defaults.string_class->byval_arg;
4764 cs = g_new (CtorSigPair, 1);
4766 cs->ctor_sig = mono_method_signature (method);
4768 mono_marshal_lock ();
4769 strsig_list = g_slist_prepend (strsig_list, cs);
4770 mono_marshal_unlock ();
4775 get_runtime_invoke_type (MonoType *t)
4778 return &mono_defaults.int_class->byval_arg;
4782 return &mono_defaults.sbyte_class->byval_arg;
4784 return &mono_defaults.int16_class->byval_arg;
4786 return &mono_defaults.int32_class->byval_arg;
4788 return &mono_defaults.int64_class->byval_arg;
4789 case MONO_TYPE_BOOLEAN:
4790 return &mono_defaults.byte_class->byval_arg;
4791 case MONO_TYPE_CHAR:
4792 return &mono_defaults.int16_class->byval_arg;
4794 return &mono_defaults.int_class->byval_arg;
4795 case MONO_TYPE_VALUETYPE:
4796 if (t->data.klass->enumtype)
4797 return mono_type_get_underlying_type (t);
4801 if (MONO_TYPE_IS_REFERENCE (t))
4802 return &mono_defaults.object_class->byval_arg;
4808 * mono_marshal_get_runtime_invoke_sig:
4810 * Return a common signature used for sharing runtime invoke wrappers.
4812 static MonoMethodSignature*
4813 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4815 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4818 res->ret = get_runtime_invoke_type (sig->ret);
4819 for (i = 0; i < res->param_count; ++i)
4820 res->params [i] = get_runtime_invoke_type (sig->params [i]);
4826 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4828 /* Can't share wrappers which return a vtype since it needs to be boxed */
4829 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)))
4832 return mono_metadata_signature_equal (sig1, sig2);
4836 * generates IL code for the runtime invoke function
4837 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4839 * we also catch exceptions if exc != null
4842 mono_marshal_get_runtime_invoke (MonoMethod *method)
4844 MonoMethodSignature *sig, *csig, *callsig;
4845 MonoExceptionClause *clause;
4846 MonoMethodBuilder *mb;
4847 GHashTable *cache = NULL;
4848 MonoClass *target_klass;
4849 MonoMethod *res = NULL;
4850 static MonoString *string_dummy = NULL;
4851 static MonoMethodSignature *cctor_signature = NULL;
4852 static MonoMethodSignature *finalize_signature = NULL;
4855 gboolean need_direct_wrapper = FALSE;
4856 int *tmp_nullable_locals;
4860 if (!cctor_signature) {
4861 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4862 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4864 if (!finalize_signature) {
4865 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4866 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4867 finalize_signature->hasthis = 1;
4871 * Use a separate cache indexed by methods to speed things up and to avoid the
4872 * boundless mempool growth caused by the signature_dup stuff below.
4874 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4875 res = mono_marshal_find_in_cache (cache, method);
4879 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4880 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4882 * Array Get/Set/Address methods. The JIT implements them using inline code
4883 * so we need to create an invoke wrapper which calls the method directly.
4885 need_direct_wrapper = TRUE;
4888 if (method->string_ctor) {
4889 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4891 callsig = add_string_ctor_signature (method);
4893 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4895 * Valuetype methods receive a managed pointer as the this argument.
4896 * Create a new signature to reflect this.
4898 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4900 if (method->dynamic)
4901 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4903 callsig = mono_method_signature (method);
4907 /* Vtypes/nullables/Byrefs cause too many problems */
4908 for (i = 0; i < callsig->param_count; ++i) {
4909 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4910 need_direct_wrapper = TRUE;
4914 * We try to share runtime invoke wrappers between different methods but have to
4915 * be careful about methods whose klass has a type cctor, since putting the wrapper
4916 * into that klass would mean that calling a method of klass A might invoke the
4917 * type initializer of class B, or throw an exception if the type initializer
4918 * was called before and failed. See #349621 for an example.
4919 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4921 if (method->klass->image == mono_defaults.corlib)
4922 target_klass = mono_defaults.object_class;
4924 /* Try to share wrappers for non-corlib methods with simple signatures */
4925 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4926 callsig = cctor_signature;
4927 target_klass = mono_defaults.object_class;
4928 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4929 callsig = finalize_signature;
4930 target_klass = mono_defaults.object_class;
4932 // FIXME: This breaks too many things
4934 if (mono_class_get_cctor (method->klass))
4935 need_direct_wrapper = TRUE;
4939 * Can't put these wrappers into object, since they reference non-corlib
4940 * metadata (callsig).
4942 target_klass = method->klass;
4946 if (need_direct_wrapper) {
4947 /* Already searched at the start */
4949 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4951 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4952 (GHashFunc)mono_signature_hash,
4953 (GCompareFunc)runtime_invoke_signature_equal);
4955 /* from mono_marshal_find_in_cache */
4956 mono_marshal_lock ();
4957 res = g_hash_table_lookup (cache, callsig);
4958 mono_marshal_unlock ();
4965 // FIXME: When to free callsig ?
4968 /* to make it work with our special string constructors */
4969 if (!string_dummy) {
4970 MONO_GC_REGISTER_ROOT (string_dummy);
4971 string_dummy = mono_string_new_wrapper ("dummy");
4974 sig = mono_method_signature (method);
4976 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4978 csig->ret = &mono_defaults.object_class->byval_arg;
4979 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4980 csig->params [0] = callsig->params [0];
4982 csig->params [0] = &mono_defaults.object_class->byval_arg;
4983 csig->params [1] = &mono_defaults.int_class->byval_arg;
4984 csig->params [2] = &mono_defaults.int_class->byval_arg;
4985 csig->params [3] = &mono_defaults.int_class->byval_arg;
4987 name = mono_signature_to_name (callsig, "runtime_invoke");
4988 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4991 /* allocate local 0 (object) tmp */
4992 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4993 /* allocate local 1 (object) exc */
4994 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4996 /* cond set *exc to null */
4997 mono_mb_emit_byte (mb, CEE_LDARG_2);
4998 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4999 mono_mb_emit_byte (mb, 3);
5000 mono_mb_emit_byte (mb, CEE_LDARG_2);
5001 mono_mb_emit_byte (mb, CEE_LDNULL);
5002 mono_mb_emit_byte (mb, CEE_STIND_REF);
5004 emit_thread_force_interrupt_checkpoint (mb);
5007 if (method->string_ctor) {
5008 mono_mb_emit_ptr (mb, string_dummy);
5010 mono_mb_emit_ldarg (mb, 0);
5014 tmp_nullable_locals = g_new0 (int, sig->param_count);
5016 for (i = 0; i < sig->param_count; i++) {
5017 MonoType *t = sig->params [i];
5020 mono_mb_emit_ldarg (mb, 1);
5022 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
5023 mono_mb_emit_byte (mb, CEE_ADD);
5027 mono_mb_emit_byte (mb, CEE_LDIND_I);
5028 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
5029 * So to make this work we unbox it to a local variablee and push a reference to that.
5031 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
5032 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
5034 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
5035 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
5036 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
5041 type = sig->params [i]->type;
5045 case MONO_TYPE_BOOLEAN:
5049 case MONO_TYPE_CHAR:
5058 mono_mb_emit_byte (mb, CEE_LDIND_I);
5059 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5061 case MONO_TYPE_STRING:
5062 case MONO_TYPE_CLASS:
5063 case MONO_TYPE_ARRAY:
5065 case MONO_TYPE_SZARRAY:
5066 case MONO_TYPE_OBJECT:
5067 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
5069 case MONO_TYPE_GENERICINST:
5070 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
5071 mono_mb_emit_byte (mb, CEE_LDIND_I);
5076 case MONO_TYPE_VALUETYPE:
5077 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
5078 type = mono_class_enum_basetype (t->data.klass)->type;
5081 mono_mb_emit_byte (mb, CEE_LDIND_I);
5082 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
5083 /* Need to convert a boxed vtype to an mp to a Nullable struct */
5084 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
5085 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5087 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5091 g_assert_not_reached ();
5095 if (need_direct_wrapper) {
5096 mono_mb_emit_op (mb, CEE_CALL, method);
5098 mono_mb_emit_ldarg (mb, 3);
5099 mono_mb_emit_calli (mb, callsig);
5102 if (sig->ret->byref) {
5104 g_assert_not_reached ();
5108 switch (sig->ret->type) {
5109 case MONO_TYPE_VOID:
5110 if (!method->string_ctor)
5111 mono_mb_emit_byte (mb, CEE_LDNULL);
5113 case MONO_TYPE_BOOLEAN:
5114 case MONO_TYPE_CHAR:
5127 case MONO_TYPE_VALUETYPE:
5128 case MONO_TYPE_TYPEDBYREF:
5129 case MONO_TYPE_GENERICINST:
5130 /* box value types */
5131 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
5133 case MONO_TYPE_STRING:
5134 case MONO_TYPE_CLASS:
5135 case MONO_TYPE_ARRAY:
5136 case MONO_TYPE_SZARRAY:
5137 case MONO_TYPE_OBJECT:
5142 g_assert_not_reached ();
5145 mono_mb_emit_stloc (mb, 0);
5147 /* Convert back nullable-byref arguments */
5148 for (i = 0; i < sig->param_count; i++) {
5149 MonoType *t = sig->params [i];
5152 * Box the result and put it back into the array, the caller will have
5153 * to obtain it from there.
5155 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
5156 mono_mb_emit_ldarg (mb, 1);
5157 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
5158 mono_mb_emit_byte (mb, CEE_ADD);
5160 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
5161 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5163 mono_mb_emit_byte (mb, CEE_STIND_REF);
5167 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5169 mono_loader_lock ();
5170 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
5171 mono_loader_unlock ();
5172 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5173 clause->try_len = mono_mb_get_label (mb);
5176 clause->data.filter_offset = mono_mb_get_label (mb);
5178 mono_mb_emit_byte (mb, CEE_POP);
5179 mono_mb_emit_byte (mb, CEE_LDARG_2);
5180 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5181 mono_mb_emit_byte (mb, CEE_PREFIX1);
5182 mono_mb_emit_byte (mb, CEE_CGT_UN);
5183 mono_mb_emit_byte (mb, CEE_PREFIX1);
5184 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5186 clause->handler_offset = mono_mb_get_label (mb);
5189 /* store exception */
5190 mono_mb_emit_stloc (mb, 1);
5192 mono_mb_emit_byte (mb, CEE_LDARG_2);
5193 mono_mb_emit_ldloc (mb, 1);
5194 mono_mb_emit_byte (mb, CEE_STIND_REF);
5196 mono_mb_emit_byte (mb, CEE_LDNULL);
5197 mono_mb_emit_stloc (mb, 0);
5199 /* Check for the abort exception */
5200 mono_mb_emit_ldloc (mb, 1);
5201 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5202 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5204 /* Delay the abort exception */
5205 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
5207 mono_mb_patch_short_branch (mb, posna);
5208 mono_mb_emit_branch (mb, CEE_LEAVE);
5210 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
5212 mono_mb_set_clauses (mb, 1, clause);
5215 mono_mb_patch_branch (mb, pos);
5216 mono_mb_emit_ldloc (mb, 0);
5217 mono_mb_emit_byte (mb, CEE_RET);
5219 if (need_direct_wrapper) {
5220 mb->skip_visibility = 1;
5221 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
5223 /* taken from mono_mb_create_and_cache */
5224 mono_marshal_lock ();
5225 res = g_hash_table_lookup (cache, callsig);
5226 mono_marshal_unlock ();
5228 /* Somebody may have created it before us */
5231 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
5233 mono_marshal_lock ();
5234 res = g_hash_table_lookup (cache, callsig);
5237 g_hash_table_insert (cache, callsig, res);
5238 /* Can't insert it into wrapper_hash since the key is a signature */
5239 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
5241 mono_free_method (newm);
5243 mono_marshal_unlock ();
5246 /* end mono_mb_create_and_cache */
5255 * mono_marshal_get_static_rgctx_invoke:
5258 * Generates a wrapper for calling a generic shared method, either
5259 * static or generic. We need this for virtual generic method lookup
5260 * and ldftn when we do generic code sharing. Instead of producing
5261 * the address of the method we produce the address of a wrapper for
5262 * the method because the wrapper passes the (method) runtime generic
5263 * context argument which calli cannot do.
5266 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
5268 static gboolean inited = FALSE;
5269 static int num_wrappers = 0;
5271 MonoMethodBuilder *mb;
5273 MonoClass *target_klass = method->klass;
5274 MonoMethodSignature *sig = mono_method_signature (method);
5278 MonoImage *image = method->klass->image;
5280 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
5281 if ((res = mono_marshal_find_in_cache (cache, method)))
5285 mono_counters_register ("static rgctx invoke wrappers",
5286 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
5291 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
5292 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
5295 for (i = 0; i < sig->param_count + sig->hasthis; i++)
5296 mono_mb_emit_ldarg (mb, i);
5297 mono_mb_emit_op (mb, CEE_CALL, method);
5298 mono_mb_emit_byte (mb, CEE_RET);
5300 mb->skip_visibility = TRUE;
5301 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
5302 sig->param_count + sig->hasthis + 4);
5303 res->flags = method->flags;
5311 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5313 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5314 klass->name_space, klass->name);
5316 mono_mb_emit_exception_marshal_directive (mb, msg);
5320 * mono_marshal_get_ldfld_remote_wrapper:
5321 * @klass: The return type
5323 * This method generates a wrapper for calling mono_load_remote_field_new.
5324 * The return type is ignored for now, as mono_load_remote_field_new () always
5325 * returns an object. In the future, to optimize some codepaths, we might
5326 * call a different function that takes a pointer to a valuetype, instead.
5329 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5331 MonoMethodSignature *sig, *csig;
5332 MonoMethodBuilder *mb;
5334 static MonoMethod* cached = NULL;
5336 mono_marshal_lock ();
5338 mono_marshal_unlock ();
5341 mono_marshal_unlock ();
5343 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5345 mb->method->save_lmf = 1;
5347 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5348 sig->params [0] = &mono_defaults.object_class->byval_arg;
5349 sig->params [1] = &mono_defaults.int_class->byval_arg;
5350 sig->params [2] = &mono_defaults.int_class->byval_arg;
5351 sig->ret = &mono_defaults.object_class->byval_arg;
5353 mono_mb_emit_ldarg (mb, 0);
5354 mono_mb_emit_ldarg (mb, 1);
5355 mono_mb_emit_ldarg (mb, 2);
5357 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5358 csig->params [0] = &mono_defaults.object_class->byval_arg;
5359 csig->params [1] = &mono_defaults.int_class->byval_arg;
5360 csig->params [2] = &mono_defaults.int_class->byval_arg;
5361 csig->ret = &mono_defaults.object_class->byval_arg;
5364 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5365 emit_thread_interrupt_checkpoint (mb);
5367 mono_mb_emit_byte (mb, CEE_RET);
5369 mono_marshal_lock ();
5371 mono_marshal_unlock ();
5374 newm = mono_mb_create_method (mb, sig, 4);
5375 mono_marshal_lock ();
5380 mono_marshal_unlock ();
5382 mono_marshal_unlock ();
5383 mono_free_method (newm);
5392 * mono_marshal_get_ldfld_wrapper:
5393 * @type: the type of the field
5395 * This method generates a function which can be use to load a field with type
5396 * @type from an object. The generated function has the following signature:
5397 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5400 mono_marshal_get_ldfld_wrapper (MonoType *type)
5402 MonoMethodSignature *sig;
5403 MonoMethodBuilder *mb;
5408 int t, pos0, pos1 = 0;
5410 type = mono_type_get_underlying_type (type);
5415 if (type->type == MONO_TYPE_SZARRAY) {
5416 klass = mono_defaults.array_class;
5417 } else if (type->type == MONO_TYPE_VALUETYPE) {
5418 klass = type->data.klass;
5419 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5420 klass = mono_defaults.object_class;
5421 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5422 klass = mono_defaults.int_class;
5423 } else if (t == MONO_TYPE_GENERICINST) {
5424 if (mono_type_generic_inst_is_valuetype (type))
5425 klass = mono_class_from_mono_type (type);
5427 klass = mono_defaults.object_class;
5429 klass = mono_class_from_mono_type (type);
5432 klass = mono_defaults.int_class;
5435 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5436 if ((res = mono_marshal_find_in_cache (cache, klass)))
5439 /* we add the %p pointer value of klass because class names are not unique */
5440 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5441 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5444 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5445 sig->params [0] = &mono_defaults.object_class->byval_arg;
5446 sig->params [1] = &mono_defaults.int_class->byval_arg;
5447 sig->params [2] = &mono_defaults.int_class->byval_arg;
5448 sig->params [3] = &mono_defaults.int_class->byval_arg;
5449 sig->ret = &klass->byval_arg;
5451 mono_mb_emit_ldarg (mb, 0);
5452 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5454 mono_mb_emit_ldarg (mb, 0);
5455 mono_mb_emit_ldarg (mb, 1);
5456 mono_mb_emit_ldarg (mb, 2);
5458 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5461 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5462 csig->params [0] = &mono_defaults.object_class->byval_arg;
5463 csig->params [1] = &mono_defaults.int_class->byval_arg;
5464 csig->params [2] = &mono_defaults.int_class->byval_arg;
5465 csig->ret = &klass->this_arg;
5468 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5469 emit_thread_interrupt_checkpoint (mb);
5472 if (klass->valuetype) {
5473 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5474 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5476 mono_mb_emit_byte (mb, CEE_RET);
5480 mono_mb_patch_branch (mb, pos0);
5482 mono_mb_emit_ldarg (mb, 0);
5483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5484 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5485 mono_mb_emit_ldarg (mb, 3);
5486 mono_mb_emit_byte (mb, CEE_ADD);
5488 if (klass->valuetype)
5489 mono_mb_patch_branch (mb, pos1);
5494 case MONO_TYPE_BOOLEAN:
5495 case MONO_TYPE_CHAR:
5504 case MONO_TYPE_ARRAY:
5505 case MONO_TYPE_SZARRAY:
5506 case MONO_TYPE_OBJECT:
5507 case MONO_TYPE_CLASS:
5508 case MONO_TYPE_STRING:
5512 case MONO_TYPE_FNPTR:
5513 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5515 case MONO_TYPE_VALUETYPE:
5516 g_assert (!klass->enumtype);
5517 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5519 case MONO_TYPE_GENERICINST:
5520 if (mono_type_generic_inst_is_valuetype (type)) {
5521 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5523 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5527 g_warning ("type %x not implemented", type->type);
5528 g_assert_not_reached ();
5531 mono_mb_emit_byte (mb, CEE_RET);
5533 res = mono_mb_create_and_cache (cache, klass,
5534 mb, sig, sig->param_count + 16);
5541 * mono_marshal_get_ldflda_wrapper:
5542 * @type: the type of the field
5544 * This method generates a function which can be used to load a field address
5545 * from an object. The generated function has the following signature:
5546 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5549 mono_marshal_get_ldflda_wrapper (MonoType *type)
5551 MonoMethodSignature *sig;
5552 MonoMethodBuilder *mb;
5557 int t, pos0, pos1, pos2, pos3;
5559 type = mono_type_get_underlying_type (type);
5563 if (type->type == MONO_TYPE_SZARRAY) {
5564 klass = mono_defaults.array_class;
5565 } else if (type->type == MONO_TYPE_VALUETYPE) {
5566 klass = type->data.klass;
5567 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5568 t == MONO_TYPE_CLASS) {
5569 klass = mono_defaults.object_class;
5570 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5571 klass = mono_defaults.int_class;
5572 } else if (t == MONO_TYPE_GENERICINST) {
5573 if (mono_type_generic_inst_is_valuetype (type))
5574 klass = mono_class_from_mono_type (type);
5576 klass = mono_defaults.object_class;
5578 klass = mono_class_from_mono_type (type);
5581 klass = mono_defaults.int_class;
5584 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5585 if ((res = mono_marshal_find_in_cache (cache, klass)))
5588 /* we add the %p pointer value of klass because class names are not unique */
5589 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5590 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5593 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5594 sig->params [0] = &mono_defaults.object_class->byval_arg;
5595 sig->params [1] = &mono_defaults.int_class->byval_arg;
5596 sig->params [2] = &mono_defaults.int_class->byval_arg;
5597 sig->params [3] = &mono_defaults.int_class->byval_arg;
5598 sig->ret = &mono_defaults.int_class->byval_arg;
5600 /* if typeof (this) != transparent_proxy goto pos0 */
5601 mono_mb_emit_ldarg (mb, 0);
5602 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5604 /* if same_appdomain goto pos1 */
5605 mono_mb_emit_ldarg (mb, 0);
5606 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5608 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5610 /* same app domain */
5611 mono_mb_patch_branch (mb, pos1);
5613 /* if typeof (this) != contextbound goto pos2 */
5614 mono_mb_emit_ldarg (mb, 0);
5615 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5617 /* if this->rp->context == mono_context_get goto pos3 */
5618 mono_mb_emit_ldarg (mb, 0);
5619 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5620 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5621 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5622 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5623 mono_mb_emit_icall (mb, mono_context_get);
5624 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5626 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5628 mono_mb_patch_branch (mb, pos2);
5629 mono_mb_patch_branch (mb, pos3);
5631 /* return the address of the field from this->rp->unwrapped_server */
5632 mono_mb_emit_ldarg (mb, 0);
5633 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5634 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5635 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5636 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5637 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5638 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5639 mono_mb_emit_ldarg (mb, 3);
5640 mono_mb_emit_byte (mb, CEE_ADD);
5641 mono_mb_emit_byte (mb, CEE_RET);
5643 /* not a proxy: return the address of the field directly */
5644 mono_mb_patch_branch (mb, pos0);
5646 mono_mb_emit_ldarg (mb, 0);
5647 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5648 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5649 mono_mb_emit_ldarg (mb, 3);
5650 mono_mb_emit_byte (mb, CEE_ADD);
5652 mono_mb_emit_byte (mb, CEE_RET);
5654 res = mono_mb_create_and_cache (cache, klass,
5655 mb, sig, sig->param_count + 16);
5662 * mono_marshal_get_stfld_remote_wrapper:
5663 * klass: The type of the field
5665 * This function generates a wrapper for calling mono_store_remote_field_new
5666 * with the appropriate signature.
5667 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5668 * klass argument anymore.
5671 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5673 MonoMethodSignature *sig, *csig;
5674 MonoMethodBuilder *mb;
5676 static MonoMethod *cached = NULL;
5678 mono_marshal_lock ();
5680 mono_marshal_unlock ();
5683 mono_marshal_unlock ();
5685 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5687 mb->method->save_lmf = 1;
5689 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5690 sig->params [0] = &mono_defaults.object_class->byval_arg;
5691 sig->params [1] = &mono_defaults.int_class->byval_arg;
5692 sig->params [2] = &mono_defaults.int_class->byval_arg;
5693 sig->params [3] = &mono_defaults.object_class->byval_arg;
5694 sig->ret = &mono_defaults.void_class->byval_arg;
5696 mono_mb_emit_ldarg (mb, 0);
5697 mono_mb_emit_ldarg (mb, 1);
5698 mono_mb_emit_ldarg (mb, 2);
5699 mono_mb_emit_ldarg (mb, 3);
5701 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5702 csig->params [0] = &mono_defaults.object_class->byval_arg;
5703 csig->params [1] = &mono_defaults.int_class->byval_arg;
5704 csig->params [2] = &mono_defaults.int_class->byval_arg;
5705 csig->params [3] = &mono_defaults.object_class->byval_arg;
5706 csig->ret = &mono_defaults.void_class->byval_arg;
5709 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5710 emit_thread_interrupt_checkpoint (mb);
5712 mono_mb_emit_byte (mb, CEE_RET);
5714 mono_marshal_lock ();
5716 mono_marshal_unlock ();
5719 newm = mono_mb_create_method (mb, sig, 6);
5720 mono_marshal_lock ();
5725 mono_marshal_unlock ();
5727 mono_marshal_unlock ();
5728 mono_free_method (newm);
5737 * mono_marshal_get_stfld_wrapper:
5738 * @type: the type of the field
5740 * This method generates a function which can be use to store a field with type
5741 * @type. The generated function has the following signature:
5742 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5745 mono_marshal_get_stfld_wrapper (MonoType *type)
5747 MonoMethodSignature *sig;
5748 MonoMethodBuilder *mb;
5755 type = mono_type_get_underlying_type (type);
5759 if (type->type == MONO_TYPE_SZARRAY) {
5760 klass = mono_defaults.array_class;
5761 } else if (type->type == MONO_TYPE_VALUETYPE) {
5762 klass = type->data.klass;
5763 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5764 klass = mono_defaults.object_class;
5765 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5766 klass = mono_defaults.int_class;
5767 } else if (t == MONO_TYPE_GENERICINST) {
5768 if (mono_type_generic_inst_is_valuetype (type))
5769 klass = mono_class_from_mono_type (type);
5771 klass = mono_defaults.object_class;
5773 klass = mono_class_from_mono_type (type);
5776 klass = mono_defaults.int_class;
5779 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5780 if ((res = mono_marshal_find_in_cache (cache, klass)))
5783 /* we add the %p pointer value of klass because class names are not unique */
5784 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5785 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5788 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5789 sig->params [0] = &mono_defaults.object_class->byval_arg;
5790 sig->params [1] = &mono_defaults.int_class->byval_arg;
5791 sig->params [2] = &mono_defaults.int_class->byval_arg;
5792 sig->params [3] = &mono_defaults.int_class->byval_arg;
5793 sig->params [4] = &klass->byval_arg;
5794 sig->ret = &mono_defaults.void_class->byval_arg;
5796 mono_mb_emit_ldarg (mb, 0);
5797 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5799 mono_mb_emit_ldarg (mb, 0);
5800 mono_mb_emit_ldarg (mb, 1);
5801 mono_mb_emit_ldarg (mb, 2);
5802 mono_mb_emit_ldarg (mb, 4);
5803 if (klass->valuetype)
5804 mono_mb_emit_op (mb, CEE_BOX, klass);
5806 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5808 mono_mb_emit_byte (mb, CEE_RET);
5810 mono_mb_patch_branch (mb, pos);
5812 mono_mb_emit_ldarg (mb, 0);
5813 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5814 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5815 mono_mb_emit_ldarg (mb, 3);
5816 mono_mb_emit_byte (mb, CEE_ADD);
5817 mono_mb_emit_ldarg (mb, 4);
5822 case MONO_TYPE_BOOLEAN:
5823 case MONO_TYPE_CHAR:
5832 case MONO_TYPE_ARRAY:
5833 case MONO_TYPE_SZARRAY:
5834 case MONO_TYPE_OBJECT:
5835 case MONO_TYPE_CLASS:
5836 case MONO_TYPE_STRING:
5840 case MONO_TYPE_FNPTR:
5841 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5843 case MONO_TYPE_VALUETYPE:
5844 g_assert (!klass->enumtype);
5845 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5847 case MONO_TYPE_GENERICINST:
5848 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5851 g_warning ("type %x not implemented", type->type);
5852 g_assert_not_reached ();
5855 mono_mb_emit_byte (mb, CEE_RET);
5857 res = mono_mb_create_and_cache (cache, klass,
5858 mb, sig, sig->param_count + 16);
5865 * generates IL code for the icall wrapper (the generated method
5866 * calls the unmanaged code in func)
5869 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5871 MonoMethodSignature *csig;
5872 MonoMethodBuilder *mb;
5876 g_assert (sig->pinvoke);
5878 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5880 mb->method->save_lmf = 1;
5882 /* we copy the signature, so that we can modify it */
5885 mono_mb_emit_byte (mb, CEE_LDARG_0);
5887 for (i = 0; i < sig->param_count; i++)
5888 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5890 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5891 if (check_exceptions)
5892 emit_thread_interrupt_checkpoint (mb);
5893 mono_mb_emit_byte (mb, CEE_RET);
5895 csig = signature_dup (mono_defaults.corlib, sig);
5897 if (csig->call_convention == MONO_CALL_VARARG)
5898 csig->call_convention = 0;
5900 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5907 MonoMethodBuilder *mb;
5908 MonoMethodSignature *sig;
5909 MonoMethodPInvoke *piinfo;
5910 int *orig_conv_args; /* Locals containing the original values of byref args */
5912 MonoClass *retobj_class;
5913 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5914 MonoImage *image; /* The image to use for looking up custom marshallers */
5915 } EmitMarshalContext;
5919 * This is invoked to convert arguments from the current types to
5920 * the underlying types expected by the platform routine. If required,
5921 * the methods create a temporary variable with the proper type, and return
5922 * the location for it (either the passed argument, or the newly allocated
5925 MARSHAL_ACTION_CONV_IN,
5928 * This operation is called to push the actual value that was optionally
5929 * converted on the first stage
5931 MARSHAL_ACTION_PUSH,
5934 * Convert byref arguments back or free resources allocated during the
5937 MARSHAL_ACTION_CONV_OUT,
5940 * The result from the unmanaged call is at the top of the stack when
5941 * this action is invoked. The result should be stored in the
5942 * third local variable slot.
5944 MARSHAL_ACTION_CONV_RESULT,
5946 MARSHAL_ACTION_MANAGED_CONV_IN,
5947 MARSHAL_ACTION_MANAGED_CONV_OUT,
5948 MARSHAL_ACTION_MANAGED_CONV_RESULT
5952 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5953 MonoMarshalSpec *spec,
5954 int conv_arg, MonoType **conv_arg_type,
5955 MarshalAction action)
5959 static MonoClass *ICustomMarshaler = NULL;
5960 static MonoMethod *cleanup_native, *cleanup_managed;
5961 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5962 MonoMethod *get_instance;
5963 MonoMethodBuilder *mb = m->mb;
5964 char *exception_msg = NULL;
5968 if (!ICustomMarshaler) {
5969 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5970 g_assert (ICustomMarshaler);
5972 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5973 g_assert (cleanup_native);
5974 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5975 g_assert (cleanup_managed);
5976 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5977 g_assert (marshal_managed_to_native);
5978 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5979 g_assert (marshal_native_to_managed);
5982 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5983 g_assert (mtype != NULL);
5984 mklass = mono_class_from_mono_type (mtype);
5985 g_assert (mklass != NULL);
5987 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5988 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5990 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5992 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5993 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5994 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5995 (get_sig->params [0]->type != MONO_TYPE_STRING))
5996 get_instance = NULL;
6000 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);
6002 /* Throw exception and emit compensation code if neccesary */
6003 if (exception_msg) {
6005 case MARSHAL_ACTION_CONV_IN:
6006 case MARSHAL_ACTION_CONV_RESULT:
6007 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6008 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
6009 mono_mb_emit_byte (mb, CEE_POP);
6011 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
6012 g_free (exception_msg);
6015 case MARSHAL_ACTION_PUSH:
6016 mono_mb_emit_byte (mb, CEE_LDNULL);
6024 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
6025 /* FIXME: MS.NET throws an exception if GetInstance returns null */
6028 case MARSHAL_ACTION_CONV_IN:
6030 case MONO_TYPE_CLASS:
6031 case MONO_TYPE_OBJECT:
6032 case MONO_TYPE_STRING:
6033 case MONO_TYPE_ARRAY:
6034 case MONO_TYPE_SZARRAY:
6035 case MONO_TYPE_VALUETYPE:
6039 g_warning ("custom marshalling of type %x is currently not supported", t->type);
6040 g_assert_not_reached ();
6044 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6046 mono_mb_emit_byte (mb, CEE_LDNULL);
6047 mono_mb_emit_stloc (mb, conv_arg);
6049 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
6052 /* Minic MS.NET behavior */
6053 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
6056 /* Check for null */
6057 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_byte (mb, CEE_LDIND_I);
6060 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6062 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6064 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6066 mono_mb_emit_ldarg (mb, argnum);
6068 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6070 if (t->type == MONO_TYPE_VALUETYPE) {
6072 * Since we can't determine the type of the argument, we
6073 * will assume the unmanaged function takes a pointer.
6075 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6077 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
6080 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6081 mono_mb_emit_stloc (mb, conv_arg);
6083 mono_mb_patch_branch (mb, pos2);
6086 case MARSHAL_ACTION_CONV_OUT:
6087 /* Check for null */
6088 mono_mb_emit_ldloc (mb, conv_arg);
6089 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6092 mono_mb_emit_ldarg (mb, argnum);
6094 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6096 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6098 mono_mb_emit_ldloc (mb, conv_arg);
6099 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6100 mono_mb_emit_byte (mb, CEE_STIND_REF);
6101 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6102 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6104 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6106 mono_mb_emit_ldloc (mb, conv_arg);
6107 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6109 /* We have nowhere to store the result */
6110 mono_mb_emit_byte (mb, CEE_POP);
6113 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6115 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6117 mono_mb_emit_ldloc (mb, conv_arg);
6119 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6121 mono_mb_patch_branch (mb, pos2);
6124 case MARSHAL_ACTION_PUSH:
6126 mono_mb_emit_ldloc_addr (mb, conv_arg);
6128 mono_mb_emit_ldloc (mb, conv_arg);
6131 case MARSHAL_ACTION_CONV_RESULT:
6132 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6134 mono_mb_emit_stloc (mb, 3);
6136 mono_mb_emit_ldloc (mb, 3);
6137 mono_mb_emit_stloc (mb, loc1);
6139 /* Check for null */
6140 mono_mb_emit_ldloc (mb, 3);
6141 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6143 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6145 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6146 mono_mb_emit_byte (mb, CEE_DUP);
6148 mono_mb_emit_ldloc (mb, 3);
6149 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6150 mono_mb_emit_stloc (mb, 3);
6152 mono_mb_emit_ldloc (mb, loc1);
6153 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
6155 mono_mb_patch_branch (mb, pos2);
6158 case MARSHAL_ACTION_MANAGED_CONV_IN:
6159 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6161 mono_mb_emit_byte (mb, CEE_LDNULL);
6162 mono_mb_emit_stloc (mb, conv_arg);
6164 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6167 /* Check for null */
6168 mono_mb_emit_ldarg (mb, argnum);
6170 mono_mb_emit_byte (mb, CEE_LDIND_I);
6171 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6173 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6174 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6176 mono_mb_emit_ldarg (mb, argnum);
6178 mono_mb_emit_byte (mb, CEE_LDIND_I);
6180 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
6181 mono_mb_emit_stloc (mb, conv_arg);
6183 mono_mb_patch_branch (mb, pos2);
6186 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6187 g_assert (!t->byref);
6189 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6191 mono_mb_emit_stloc (mb, 3);
6193 mono_mb_emit_ldloc (mb, 3);
6194 mono_mb_emit_stloc (mb, loc1);
6196 /* Check for null */
6197 mono_mb_emit_ldloc (mb, 3);
6198 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6200 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6201 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6202 mono_mb_emit_byte (mb, CEE_DUP);
6204 mono_mb_emit_ldloc (mb, 3);
6205 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6206 mono_mb_emit_stloc (mb, 3);
6208 mono_mb_emit_ldloc (mb, loc1);
6209 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6211 mono_mb_patch_branch (mb, pos2);
6214 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6216 /* Check for null */
6217 mono_mb_emit_ldloc (mb, conv_arg);
6218 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6221 mono_mb_emit_ldarg (mb, argnum);
6223 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6225 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6227 mono_mb_emit_ldloc (mb, conv_arg);
6228 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6229 mono_mb_emit_byte (mb, CEE_STIND_I);
6232 /* Call CleanUpManagedData */
6233 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6235 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6237 mono_mb_emit_ldloc (mb, conv_arg);
6238 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6240 mono_mb_patch_branch (mb, pos2);
6244 g_assert_not_reached ();
6251 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6252 MonoMarshalSpec *spec,
6253 int conv_arg, MonoType **conv_arg_type,
6254 MarshalAction action)
6256 MonoMethodBuilder *mb = m->mb;
6259 case MARSHAL_ACTION_CONV_IN: {
6260 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6262 g_assert (t->type == MONO_TYPE_OBJECT);
6263 g_assert (!t->byref);
6265 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6266 mono_mb_emit_ldarg (mb, argnum);
6267 mono_mb_emit_icon (mb, encoding);
6268 mono_mb_emit_icon (mb, t->attrs);
6269 mono_mb_emit_icall (mb, mono_marshal_asany);
6270 mono_mb_emit_stloc (mb, conv_arg);
6274 case MARSHAL_ACTION_PUSH:
6275 mono_mb_emit_ldloc (mb, conv_arg);
6278 case MARSHAL_ACTION_CONV_OUT: {
6279 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6281 mono_mb_emit_ldarg (mb, argnum);
6282 mono_mb_emit_ldloc (mb, conv_arg);
6283 mono_mb_emit_icon (mb, encoding);
6284 mono_mb_emit_icon (mb, t->attrs);
6285 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6290 g_assert_not_reached ();
6297 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6298 MonoMarshalSpec *spec,
6299 int conv_arg, MonoType **conv_arg_type,
6300 MarshalAction action)
6302 MonoMethodBuilder *mb = m->mb;
6306 klass = mono_class_from_mono_type (t);
6309 case MARSHAL_ACTION_CONV_IN:
6310 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6311 klass->blittable || klass->enumtype)
6314 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6316 /* store the address of the source into local variable 0 */
6318 mono_mb_emit_ldarg (mb, argnum);
6320 mono_mb_emit_ldarg_addr (mb, argnum);
6322 mono_mb_emit_stloc (mb, 0);
6324 /* allocate space for the native struct and
6325 * store the address into local variable 1 (dest) */
6326 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6327 mono_mb_emit_byte (mb, CEE_PREFIX1);
6328 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6329 mono_mb_emit_stloc (mb, conv_arg);
6332 mono_mb_emit_ldloc (mb, 0);
6333 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6336 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6338 mono_mb_emit_ldloc (mb, conv_arg);
6339 mono_mb_emit_stloc (mb, 1);
6341 /* emit valuetype conversion code */
6342 emit_struct_conv (mb, klass, FALSE);
6346 mono_mb_patch_branch (mb, pos);
6349 case MARSHAL_ACTION_PUSH:
6350 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6352 g_assert (!t->byref);
6354 /* Have to change the signature since the vtype is passed byref */
6355 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6357 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6358 klass->blittable || klass->enumtype)
6359 mono_mb_emit_ldarg_addr (mb, argnum);
6361 mono_mb_emit_ldloc (mb, conv_arg);
6365 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6366 klass->blittable || klass->enumtype) {
6367 mono_mb_emit_ldarg (mb, argnum);
6370 mono_mb_emit_ldloc (mb, conv_arg);
6372 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6373 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6377 case MARSHAL_ACTION_CONV_OUT:
6378 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6379 klass->blittable || klass->enumtype)
6383 /* dst = argument */
6384 mono_mb_emit_ldarg (mb, argnum);
6385 mono_mb_emit_stloc (mb, 1);
6387 mono_mb_emit_ldloc (mb, 1);
6388 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6390 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6391 /* src = tmp_locals [i] */
6392 mono_mb_emit_ldloc (mb, conv_arg);
6393 mono_mb_emit_stloc (mb, 0);
6395 /* emit valuetype conversion code */
6396 emit_struct_conv (mb, klass, TRUE);
6400 emit_struct_free (mb, klass, conv_arg);
6403 mono_mb_patch_branch (mb, pos);
6406 case MARSHAL_ACTION_CONV_RESULT:
6407 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6409 mono_mb_emit_stloc (mb, 3);
6412 /* load pointer to returned value type */
6413 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6414 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6415 /* store the address of the source into local variable 0 */
6416 mono_mb_emit_stloc (mb, 0);
6418 mono_mb_emit_ldloc_addr (mb, 3);
6419 mono_mb_emit_stloc (mb, 1);
6421 /* emit valuetype conversion code */
6422 emit_struct_conv (mb, klass, TRUE);
6425 case MARSHAL_ACTION_MANAGED_CONV_IN:
6426 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6427 klass->blittable || klass->enumtype) {
6432 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6434 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6438 mono_mb_emit_ldarg (mb, argnum);
6440 mono_mb_emit_ldarg_addr (mb, argnum);
6441 mono_mb_emit_stloc (mb, 0);
6444 mono_mb_emit_ldloc (mb, 0);
6445 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6448 mono_mb_emit_ldloc_addr (mb, conv_arg);
6449 mono_mb_emit_stloc (mb, 1);
6451 /* emit valuetype conversion code */
6452 emit_struct_conv (mb, klass, TRUE);
6455 mono_mb_patch_branch (mb, pos);
6458 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6459 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6460 klass->blittable || klass->enumtype) {
6464 /* Check for null */
6465 mono_mb_emit_ldarg (mb, argnum);
6466 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6469 mono_mb_emit_ldloc_addr (mb, conv_arg);
6470 mono_mb_emit_stloc (mb, 0);
6473 mono_mb_emit_ldarg (mb, argnum);
6474 mono_mb_emit_stloc (mb, 1);
6476 /* emit valuetype conversion code */
6477 emit_struct_conv (mb, klass, FALSE);
6479 mono_mb_patch_branch (mb, pos2);
6482 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6483 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6484 klass->blittable || klass->enumtype) {
6485 mono_mb_emit_stloc (mb, 3);
6490 /* load pointer to returned value type */
6491 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6492 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6494 /* store the address of the source into local variable 0 */
6495 mono_mb_emit_stloc (mb, 0);
6496 /* allocate space for the native struct and
6497 * store the address into dst_ptr */
6498 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6499 m->retobj_class = klass;
6500 g_assert (m->retobj_var);
6501 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6502 mono_mb_emit_byte (mb, CEE_CONV_I);
6503 mono_mb_emit_icall (mb, mono_marshal_alloc);
6504 mono_mb_emit_stloc (mb, 1);
6505 mono_mb_emit_ldloc (mb, 1);
6506 mono_mb_emit_stloc (mb, m->retobj_var);
6508 /* emit valuetype conversion code */
6509 emit_struct_conv (mb, klass, FALSE);
6513 g_assert_not_reached ();
6520 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6521 MonoMarshalSpec *spec,
6522 int conv_arg, MonoType **conv_arg_type,
6523 MarshalAction action)
6525 MonoMethodBuilder *mb = m->mb;
6526 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6527 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6531 case MARSHAL_ACTION_CONV_IN:
6532 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6533 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6536 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6539 mono_mb_emit_ldarg (mb, argnum);
6540 mono_mb_emit_byte (mb, CEE_LDIND_I);
6542 mono_mb_emit_ldarg (mb, argnum);
6546 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6547 MonoException *exc = mono_get_exception_not_implemented (msg);
6550 mono_raise_exception (exc);
6553 mono_mb_emit_icall (mb, conv_to_icall (conv));
6555 mono_mb_emit_stloc (mb, conv_arg);
6558 case MARSHAL_ACTION_CONV_OUT:
6559 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6561 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6562 mono_mb_emit_exception_marshal_directive (mb, msg);
6566 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6567 mono_mb_emit_ldarg (mb, argnum);
6568 mono_mb_emit_ldloc (mb, conv_arg);
6569 mono_mb_emit_icall (mb, conv_to_icall (conv));
6570 mono_mb_emit_byte (mb, CEE_STIND_REF);
6573 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6574 mono_mb_emit_ldloc (mb, conv_arg);
6575 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6576 mono_mb_emit_icall (mb, mono_free_bstr);
6578 mono_mb_emit_icall (mb, mono_marshal_free);
6582 case MARSHAL_ACTION_PUSH:
6584 mono_mb_emit_ldloc_addr (mb, conv_arg);
6586 mono_mb_emit_ldloc (mb, conv_arg);
6589 case MARSHAL_ACTION_CONV_RESULT:
6590 mono_mb_emit_stloc (mb, 0);
6592 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6594 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6595 mono_mb_emit_exception_marshal_directive (mb, msg);
6599 mono_mb_emit_ldloc (mb, 0);
6600 mono_mb_emit_icall (mb, conv_to_icall (conv));
6601 mono_mb_emit_stloc (mb, 3);
6603 /* free the string */
6604 mono_mb_emit_ldloc (mb, 0);
6605 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6606 mono_mb_emit_icall (mb, mono_free_bstr);
6608 mono_mb_emit_icall (mb, mono_marshal_free);
6611 case MARSHAL_ACTION_MANAGED_CONV_IN:
6612 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6614 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6616 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6618 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6619 mono_mb_emit_exception_marshal_directive (mb, msg);
6623 mono_mb_emit_ldarg (mb, argnum);
6625 mono_mb_emit_byte (mb, CEE_LDIND_I);
6626 mono_mb_emit_icall (mb, conv_to_icall (conv));
6627 mono_mb_emit_stloc (mb, conv_arg);
6630 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6633 mono_mb_emit_ldarg (mb, argnum);
6634 mono_mb_emit_ldloc (mb, conv_arg);
6635 mono_mb_emit_icall (mb, conv_to_icall (conv));
6636 mono_mb_emit_byte (mb, CEE_STIND_I);
6641 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6642 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6643 /* We need to make a copy so the caller is able to free it */
6644 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6646 mono_mb_emit_icall (mb, conv_to_icall (conv));
6647 mono_mb_emit_stloc (mb, 3);
6651 g_assert_not_reached ();
6658 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6659 MonoMarshalSpec *spec, int conv_arg,
6660 MonoType **conv_arg_type, MarshalAction action)
6662 MonoMethodBuilder *mb = m->mb;
6665 case MARSHAL_ACTION_CONV_IN: {
6666 MonoType *intptr_type;
6667 int dar_release_slot, pos;
6669 intptr_type = &mono_defaults.int_class->byval_arg;
6670 conv_arg = mono_mb_add_local (mb, intptr_type);
6671 *conv_arg_type = intptr_type;
6673 if (!sh_dangerous_add_ref)
6674 init_safe_handle ();
6676 mono_mb_emit_ldarg (mb, argnum);
6677 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6678 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6680 mono_mb_patch_branch (mb, pos);
6683 * My tests in show that ref SafeHandles are not really
6684 * passed as ref objects. Instead a NULL is passed as the
6687 mono_mb_emit_icon (mb, 0);
6688 mono_mb_emit_stloc (mb, conv_arg);
6692 /* Create local to hold the ref parameter to DangerousAddRef */
6693 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6695 /* set release = false; */
6696 mono_mb_emit_icon (mb, 0);
6697 mono_mb_emit_stloc (mb, dar_release_slot);
6699 /* safehandle.DangerousAddRef (ref release) */
6700 mono_mb_emit_ldarg (mb, argnum);
6701 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6702 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6704 /* Pull the handle field from SafeHandle */
6705 mono_mb_emit_ldarg (mb, argnum);
6706 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6707 mono_mb_emit_byte (mb, CEE_LDIND_I);
6708 mono_mb_emit_stloc (mb, conv_arg);
6713 case MARSHAL_ACTION_PUSH:
6715 mono_mb_emit_ldloc_addr (mb, conv_arg);
6717 mono_mb_emit_ldloc (mb, conv_arg);
6720 case MARSHAL_ACTION_CONV_OUT: {
6721 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6722 int dar_release_slot = conv_arg + 1;
6725 if (!sh_dangerous_release)
6726 init_safe_handle ();
6732 * My tests indicate that ref SafeHandles parameters are not actually
6733 * passed by ref, but instead a new Handle is created regardless of
6734 * whether a change happens in the unmanaged side.
6736 * Also, the Handle is created before calling into unmanaged code,
6737 * but we do not support that mechanism (getting to the original
6738 * handle) and it makes no difference where we create this
6740 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6742 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6745 /* refval = new SafeHandleDerived ()*/
6746 mono_mb_emit_ldarg (mb, argnum);
6747 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6748 mono_mb_emit_byte (mb, CEE_STIND_REF);
6750 /* refval.handle = returned_handle */
6751 mono_mb_emit_ldarg (mb, argnum);
6752 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6753 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6754 mono_mb_emit_ldloc (mb, conv_arg);
6755 mono_mb_emit_byte (mb, CEE_STIND_I);
6757 mono_mb_emit_ldloc (mb, dar_release_slot);
6758 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6759 mono_mb_emit_ldarg (mb, argnum);
6760 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6761 mono_mb_patch_branch (mb, label_next);
6766 case MARSHAL_ACTION_CONV_RESULT: {
6767 MonoMethod *ctor = NULL;
6768 int intptr_handle_slot;
6770 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6771 mono_mb_emit_byte (mb, CEE_POP);
6772 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6776 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6778 mono_mb_emit_byte (mb, CEE_POP);
6779 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6782 /* Store the IntPtr results into a local */
6783 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6784 mono_mb_emit_stloc (mb, intptr_handle_slot);
6786 /* Create return value */
6787 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6788 mono_mb_emit_stloc (mb, 3);
6790 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6791 mono_mb_emit_ldloc (mb, 3);
6792 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6793 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6794 mono_mb_emit_byte (mb, CEE_STIND_I);
6798 case MARSHAL_ACTION_MANAGED_CONV_IN:
6799 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6802 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6803 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6806 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6807 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6810 printf ("Unhandled case for MarshalAction: %d\n", action);
6817 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6818 MonoMarshalSpec *spec, int conv_arg,
6819 MonoType **conv_arg_type, MarshalAction action)
6821 MonoMethodBuilder *mb = m->mb;
6824 case MARSHAL_ACTION_CONV_IN: {
6825 MonoType *intptr_type;
6827 intptr_type = &mono_defaults.int_class->byval_arg;
6828 conv_arg = mono_mb_add_local (mb, intptr_type);
6829 *conv_arg_type = intptr_type;
6832 mono_mb_emit_exception_marshal_directive (mb,
6833 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6836 mono_mb_emit_ldarg_addr (mb, argnum);
6837 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6838 mono_mb_emit_byte (mb, CEE_ADD);
6839 mono_mb_emit_byte (mb, CEE_LDIND_I);
6840 mono_mb_emit_stloc (mb, conv_arg);
6844 case MARSHAL_ACTION_PUSH:
6845 mono_mb_emit_ldloc (mb, conv_arg);
6848 case MARSHAL_ACTION_CONV_OUT: {
6849 /* no resource release required */
6853 case MARSHAL_ACTION_CONV_RESULT: {
6854 mono_mb_emit_exception_marshal_directive (mb,
6855 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6859 case MARSHAL_ACTION_MANAGED_CONV_IN:
6860 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6863 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6864 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6867 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6868 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6871 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6878 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6879 MonoMarshalSpec *spec,
6880 int conv_arg, MonoType **conv_arg_type,
6881 MarshalAction action)
6883 MonoMethodBuilder *mb = m->mb;
6884 MonoClass *klass = mono_class_from_mono_type (t);
6887 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6888 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6892 case MARSHAL_ACTION_CONV_IN:
6893 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6894 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6896 m->orig_conv_args [argnum] = 0;
6898 if (klass->delegate) {
6900 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6901 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6902 mono_mb_emit_exception_marshal_directive (mb, msg);
6904 mono_mb_emit_byte (mb, CEE_LDNULL);
6905 mono_mb_emit_stloc (mb, conv_arg);
6907 mono_mb_emit_ldarg (mb, argnum);
6908 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6909 mono_mb_emit_stloc (mb, conv_arg);
6911 } else if (klass == mono_defaults.stringbuilder_class) {
6912 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6913 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6915 g_assert (!t->byref);
6916 mono_mb_emit_ldarg (mb, argnum);
6919 mono_mb_emit_icall (mb, conv_to_icall (conv));
6921 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6922 MonoException *exc = mono_get_exception_not_implemented (msg);
6925 mono_raise_exception (exc);
6928 mono_mb_emit_stloc (mb, conv_arg);
6929 } else if (klass->blittable) {
6930 mono_mb_emit_byte (mb, CEE_LDNULL);
6931 mono_mb_emit_stloc (mb, conv_arg);
6933 mono_mb_emit_ldarg (mb, argnum);
6934 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6936 mono_mb_emit_ldarg (mb, argnum);
6937 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6938 mono_mb_emit_stloc (mb, conv_arg);
6940 mono_mb_patch_branch (mb, pos);
6943 mono_mb_emit_byte (mb, CEE_LDNULL);
6944 mono_mb_emit_stloc (mb, conv_arg);
6947 /* we dont need any conversions for out parameters */
6948 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6951 mono_mb_emit_ldarg (mb, argnum);
6952 mono_mb_emit_byte (mb, CEE_LDIND_I);
6955 mono_mb_emit_ldarg (mb, argnum);
6956 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6957 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6960 /* store the address of the source into local variable 0 */
6961 mono_mb_emit_stloc (mb, 0);
6962 mono_mb_emit_ldloc (mb, 0);
6963 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6965 /* allocate space for the native struct and store the address */
6966 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6967 mono_mb_emit_byte (mb, CEE_PREFIX1);
6968 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6969 mono_mb_emit_stloc (mb, conv_arg);
6972 /* Need to store the original buffer so we can free it later */
6973 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6974 mono_mb_emit_ldloc (mb, conv_arg);
6975 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6978 /* set the src_ptr */
6979 mono_mb_emit_ldloc (mb, 0);
6980 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6981 mono_mb_emit_stloc (mb, 0);
6984 mono_mb_emit_ldloc (mb, conv_arg);
6985 mono_mb_emit_stloc (mb, 1);
6987 /* emit valuetype conversion code */
6988 emit_struct_conv (mb, klass, FALSE);
6990 mono_mb_patch_branch (mb, pos);
6994 case MARSHAL_ACTION_CONV_OUT:
6995 if (klass == mono_defaults.stringbuilder_class) {
6997 MonoMarshalNative encoding;
6998 MonoMarshalConv conv;
7000 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7001 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7003 g_assert (!t->byref);
7004 g_assert (encoding != -1);
7006 mono_mb_emit_ldarg (mb, argnum);
7007 mono_mb_emit_ldloc (mb, conv_arg);
7009 mono_mb_emit_icall (mb, conv_to_icall (conv));
7012 mono_mb_emit_ldloc (mb, conv_arg);
7013 mono_mb_emit_icall (mb, mono_marshal_free);
7018 if (klass->delegate) {
7020 mono_mb_emit_ldarg (mb, argnum);
7021 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7022 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7023 mono_mb_emit_ldloc (mb, conv_arg);
7024 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7025 mono_mb_emit_byte (mb, CEE_STIND_REF);
7030 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7031 /* allocate a new object */
7032 mono_mb_emit_ldarg (mb, argnum);
7033 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7034 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7035 mono_mb_emit_byte (mb, CEE_STIND_REF);
7038 /* dst = *argument */
7039 mono_mb_emit_ldarg (mb, argnum);
7042 mono_mb_emit_byte (mb, CEE_LDIND_I);
7044 mono_mb_emit_stloc (mb, 1);
7046 mono_mb_emit_ldloc (mb, 1);
7047 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7049 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7050 mono_mb_emit_ldloc (mb, 1);
7051 mono_mb_emit_icon (mb, sizeof (MonoObject));
7052 mono_mb_emit_byte (mb, CEE_ADD);
7053 mono_mb_emit_stloc (mb, 1);
7055 /* src = tmp_locals [i] */
7056 mono_mb_emit_ldloc (mb, conv_arg);
7057 mono_mb_emit_stloc (mb, 0);
7059 /* emit valuetype conversion code */
7060 emit_struct_conv (mb, klass, TRUE);
7062 /* Free the structure returned by the native code */
7063 emit_struct_free (mb, klass, conv_arg);
7065 if (m->orig_conv_args [argnum]) {
7067 * If the native function changed the pointer, then free
7068 * the original structure plus the new pointer.
7070 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
7071 mono_mb_emit_ldloc (mb, conv_arg);
7072 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
7074 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
7075 g_assert (m->orig_conv_args [argnum]);
7077 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
7080 mono_mb_emit_ldloc (mb, conv_arg);
7081 mono_mb_emit_icall (mb, g_free);
7083 mono_mb_patch_branch (mb, pos2);
7087 /* Free the original structure passed to native code */
7088 emit_struct_free (mb, klass, conv_arg);
7090 mono_mb_patch_branch (mb, pos);
7093 case MARSHAL_ACTION_PUSH:
7095 mono_mb_emit_ldloc_addr (mb, conv_arg);
7097 mono_mb_emit_ldloc (mb, conv_arg);
7100 case MARSHAL_ACTION_CONV_RESULT:
7101 if (klass->delegate) {
7102 g_assert (!t->byref);
7103 mono_mb_emit_stloc (mb, 0);
7104 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7105 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7106 mono_mb_emit_ldloc (mb, 0);
7107 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7108 mono_mb_emit_stloc (mb, 3);
7111 mono_mb_emit_stloc (mb, 0);
7113 /* Make a copy since emit_conv modifies local 0 */
7114 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7115 mono_mb_emit_ldloc (mb, 0);
7116 mono_mb_emit_stloc (mb, loc);
7118 mono_mb_emit_byte (mb, CEE_LDNULL);
7119 mono_mb_emit_stloc (mb, 3);
7121 mono_mb_emit_ldloc (mb, 0);
7122 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7124 /* allocate result object */
7126 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7127 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7128 mono_mb_emit_stloc (mb, 3);
7132 mono_mb_emit_ldloc (mb, 3);
7133 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7134 mono_mb_emit_stloc (mb, 1);
7136 /* emit conversion code */
7137 emit_struct_conv (mb, klass, TRUE);
7139 emit_struct_free (mb, klass, loc);
7141 /* Free the pointer allocated by unmanaged code */
7142 mono_mb_emit_ldloc (mb, loc);
7143 mono_mb_emit_icall (mb, g_free);
7144 mono_mb_patch_branch (mb, pos);
7148 case MARSHAL_ACTION_MANAGED_CONV_IN:
7149 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7151 if (klass->delegate) {
7152 g_assert (!t->byref);
7153 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7154 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7155 mono_mb_emit_ldarg (mb, argnum);
7156 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7157 mono_mb_emit_stloc (mb, conv_arg);
7161 if (klass == mono_defaults.stringbuilder_class) {
7162 MonoMarshalNative encoding;
7164 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7167 g_assert (encoding == MONO_NATIVE_LPSTR);
7169 g_assert (!t->byref);
7170 g_assert (encoding != -1);
7172 mono_mb_emit_ldarg (mb, argnum);
7173 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
7174 mono_mb_emit_stloc (mb, conv_arg);
7178 /* The class can not have an automatic layout */
7179 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7180 mono_mb_emit_auto_layout_exception (mb, klass);
7184 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
7185 mono_mb_emit_byte (mb, CEE_LDNULL);
7186 mono_mb_emit_stloc (mb, conv_arg);
7191 mono_mb_emit_ldarg (mb, argnum);
7195 /* Check for NULL and raise an exception */
7196 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7198 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
7200 mono_mb_patch_branch (mb, pos2);
7201 mono_mb_emit_ldarg (mb, argnum);
7202 mono_mb_emit_byte (mb, CEE_LDIND_I);
7205 mono_mb_emit_stloc (mb, 0);
7207 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7208 mono_mb_emit_stloc (mb, conv_arg);
7210 mono_mb_emit_ldloc (mb, 0);
7211 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7213 /* Create and set dst */
7214 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7215 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7216 mono_mb_emit_stloc (mb, conv_arg);
7217 mono_mb_emit_ldloc (mb, conv_arg);
7218 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7219 mono_mb_emit_stloc (mb, 1);
7221 /* emit valuetype conversion code */
7222 emit_struct_conv (mb, klass, TRUE);
7224 mono_mb_patch_branch (mb, pos);
7227 case MARSHAL_ACTION_MANAGED_CONV_OUT:
7229 /* Check for null */
7230 mono_mb_emit_ldloc (mb, conv_arg);
7231 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7232 mono_mb_emit_ldarg (mb, argnum);
7233 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7234 mono_mb_emit_byte (mb, CEE_STIND_REF);
7235 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7237 mono_mb_patch_branch (mb, pos);
7240 mono_mb_emit_ldloc (mb, conv_arg);
7241 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7242 mono_mb_emit_stloc (mb, 0);
7244 /* Allocate and set dest */
7245 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7246 mono_mb_emit_byte (mb, CEE_CONV_I);
7247 mono_mb_emit_icall (mb, mono_marshal_alloc);
7248 mono_mb_emit_stloc (mb, 1);
7250 /* Update argument pointer */
7251 mono_mb_emit_ldarg (mb, argnum);
7252 mono_mb_emit_ldloc (mb, 1);
7253 mono_mb_emit_byte (mb, CEE_STIND_I);
7255 /* emit valuetype conversion code */
7256 emit_struct_conv (mb, klass, FALSE);
7258 mono_mb_patch_branch (mb, pos2);
7260 /* byval [Out] marshalling */
7262 /* FIXME: Handle null */
7265 mono_mb_emit_ldloc (mb, conv_arg);
7266 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7267 mono_mb_emit_stloc (mb, 0);
7270 mono_mb_emit_ldarg (mb, argnum);
7271 mono_mb_emit_stloc (mb, 1);
7273 /* emit valuetype conversion code */
7274 emit_struct_conv (mb, klass, FALSE);
7278 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7279 if (klass->delegate) {
7280 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7281 mono_mb_emit_stloc (mb, 3);
7285 /* The class can not have an automatic layout */
7286 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7287 mono_mb_emit_auto_layout_exception (mb, klass);
7291 mono_mb_emit_stloc (mb, 0);
7292 /* Check for null */
7293 mono_mb_emit_ldloc (mb, 0);
7294 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7295 mono_mb_emit_byte (mb, CEE_LDNULL);
7296 mono_mb_emit_stloc (mb, 3);
7297 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7299 mono_mb_patch_branch (mb, pos);
7302 mono_mb_emit_ldloc (mb, 0);
7303 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7304 mono_mb_emit_stloc (mb, 0);
7306 /* Allocate and set dest */
7307 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7308 mono_mb_emit_byte (mb, CEE_CONV_I);
7309 mono_mb_emit_icall (mb, mono_marshal_alloc);
7310 mono_mb_emit_byte (mb, CEE_DUP);
7311 mono_mb_emit_stloc (mb, 1);
7312 mono_mb_emit_stloc (mb, 3);
7314 emit_struct_conv (mb, klass, FALSE);
7316 mono_mb_patch_branch (mb, pos2);
7320 g_assert_not_reached ();
7329 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7330 MonoMarshalSpec *spec,
7331 int conv_arg, MonoType **conv_arg_type,
7332 MarshalAction action)
7334 MonoMethodBuilder *mb = m->mb;
7335 MonoClass *klass = t->data.klass;
7336 static MonoMethod* get_object_for_iunknown = NULL;
7337 static MonoMethod* get_iunknown_for_object_internal = NULL;
7338 static MonoMethod* get_com_interface_for_object_internal = NULL;
7339 static MonoMethod* get_idispatch_for_object_internal = NULL;
7340 static MonoMethod* marshal_release = NULL;
7341 static MonoMethod* AddRef = NULL;
7342 if (!get_object_for_iunknown)
7343 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7344 if (!get_iunknown_for_object_internal)
7345 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7346 if (!get_idispatch_for_object_internal)
7347 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7348 if (!get_com_interface_for_object_internal)
7349 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7350 if (!marshal_release)
7351 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7353 /* COM types are initialized lazily */
7354 mono_init_com_types ();
7357 case MARSHAL_ACTION_CONV_IN: {
7358 guint32 pos_null = 0;
7360 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7361 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7363 mono_mb_emit_ptr (mb, NULL);
7364 mono_mb_emit_stloc (mb, conv_arg);
7366 /* we dont need any conversions for out parameters */
7367 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7370 mono_mb_emit_ldarg (mb, argnum);
7372 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7373 /* if null just break, conv arg was already inited to 0 */
7374 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7376 mono_mb_emit_ldarg (mb, argnum);
7378 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7380 if (klass && klass != mono_defaults.object_class) {
7381 mono_mb_emit_ptr (mb, t);
7382 mono_mb_emit_icall (mb, type_from_handle);
7383 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7385 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7386 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7387 else if (spec->native == MONO_NATIVE_IDISPATCH)
7388 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7389 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7390 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7392 g_assert_not_reached ();
7393 mono_mb_emit_stloc (mb, conv_arg);
7394 mono_mb_patch_short_branch (mb, pos_null);
7398 case MARSHAL_ACTION_CONV_OUT: {
7399 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7401 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7402 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7404 mono_mb_emit_ldarg (mb, argnum);
7405 mono_mb_emit_byte (mb, CEE_LDNULL);
7406 mono_mb_emit_byte (mb, CEE_STIND_REF);
7408 mono_mb_emit_ldloc (mb, conv_arg);
7409 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7411 mono_mb_emit_ldloc (mb, conv_arg);
7412 mono_mb_emit_icon (mb, TRUE);
7413 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7414 mono_mb_emit_stloc (mb, ccw_obj);
7415 mono_mb_emit_ldloc (mb, ccw_obj);
7416 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7418 mono_mb_emit_ldarg (mb, argnum);
7419 mono_mb_emit_ldloc (mb, conv_arg);
7420 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7422 if (klass && klass != mono_defaults.object_class)
7423 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7424 mono_mb_emit_byte (mb, CEE_STIND_REF);
7426 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7428 /* is already managed object */
7429 mono_mb_patch_short_branch (mb, pos_ccw);
7430 mono_mb_emit_ldarg (mb, argnum);
7431 mono_mb_emit_ldloc (mb, ccw_obj);
7433 if (klass && klass != mono_defaults.object_class)
7434 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7435 mono_mb_emit_byte (mb, CEE_STIND_REF);
7437 mono_mb_patch_short_branch (mb, pos_end);
7439 /* need to call Release to follow COM rules of ownership */
7440 mono_mb_emit_ldloc (mb, conv_arg);
7441 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7442 mono_mb_emit_byte (mb, CEE_POP);
7445 mono_mb_patch_short_branch (mb, pos_null);
7449 case MARSHAL_ACTION_PUSH:
7451 mono_mb_emit_ldloc_addr (mb, conv_arg);
7453 mono_mb_emit_ldloc (mb, conv_arg);
7456 case MARSHAL_ACTION_CONV_RESULT: {
7457 int ccw_obj, ret_ptr;
7458 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7459 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7460 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7462 /* store return value */
7463 mono_mb_emit_stloc (mb, ret_ptr);
7465 mono_mb_emit_ldloc (mb, ret_ptr);
7466 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7468 mono_mb_emit_ldloc (mb, ret_ptr);
7469 mono_mb_emit_icon (mb, TRUE);
7470 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7471 mono_mb_emit_stloc (mb, ccw_obj);
7472 mono_mb_emit_ldloc (mb, ccw_obj);
7473 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7475 mono_mb_emit_ldloc (mb, ret_ptr);
7476 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7478 if (klass && klass != mono_defaults.object_class)
7479 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7480 mono_mb_emit_stloc (mb, 3);
7482 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7484 /* is already managed object */
7485 mono_mb_patch_short_branch (mb, pos_ccw);
7486 mono_mb_emit_ldloc (mb, ccw_obj);
7488 if (klass && klass != mono_defaults.object_class)
7489 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7490 mono_mb_emit_stloc (mb, 3);
7492 mono_mb_patch_short_branch (mb, pos_end);
7494 /* need to call Release to follow COM rules of ownership */
7495 mono_mb_emit_ldloc (mb, ret_ptr);
7496 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7497 mono_mb_emit_byte (mb, CEE_POP);
7500 mono_mb_patch_short_branch (mb, pos_null);
7504 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7506 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7507 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7509 klass = mono_class_from_mono_type (t);
7510 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7511 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7513 mono_mb_emit_byte (mb, CEE_LDNULL);
7514 mono_mb_emit_stloc (mb, conv_arg);
7515 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7518 mono_mb_emit_ldarg (mb, argnum);
7520 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7521 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7523 mono_mb_emit_ldarg (mb, argnum);
7525 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7526 mono_mb_emit_icon (mb, TRUE);
7527 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7528 mono_mb_emit_stloc (mb, ccw_obj);
7529 mono_mb_emit_ldloc (mb, ccw_obj);
7530 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7533 mono_mb_emit_ldarg (mb, argnum);
7535 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7536 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7538 if (klass && klass != mono_defaults.object_class)
7539 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7540 mono_mb_emit_stloc (mb, conv_arg);
7541 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7543 /* is already managed object */
7544 mono_mb_patch_short_branch (mb, pos_ccw);
7545 mono_mb_emit_ldloc (mb, ccw_obj);
7546 if (klass && klass != mono_defaults.object_class)
7547 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7548 mono_mb_emit_stloc (mb, conv_arg);
7550 mono_mb_patch_short_branch (mb, pos_end);
7552 mono_mb_patch_short_branch (mb, pos_null);
7556 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7557 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7558 guint32 pos_null = 0;
7561 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7563 mono_mb_emit_ldloc (mb, conv_arg);
7564 /* if null just break, conv arg was already inited to 0 */
7565 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7567 /* to store later */
7568 mono_mb_emit_ldarg (mb, argnum);
7569 mono_mb_emit_ldloc (mb, conv_arg);
7570 if (klass && klass != mono_defaults.object_class) {
7571 mono_mb_emit_ptr (mb, t);
7572 mono_mb_emit_icall (mb, type_from_handle);
7573 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7575 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7576 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7577 else if (spec->native == MONO_NATIVE_IDISPATCH)
7578 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7579 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7580 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7582 g_assert_not_reached ();
7583 mono_mb_emit_byte (mb, CEE_STIND_I);
7585 mono_mb_emit_ldarg (mb, argnum);
7586 mono_mb_emit_byte (mb, CEE_LDIND_I);
7587 mono_mb_emit_managed_call (mb, AddRef, NULL);
7588 mono_mb_emit_byte (mb, CEE_POP);
7590 mono_mb_patch_short_branch (mb, pos_null);
7595 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7596 guint32 pos_null = 0;
7598 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7601 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7603 /* store return value */
7604 mono_mb_emit_stloc (mb, ccw_obj);
7606 mono_mb_emit_ldloc (mb, ccw_obj);
7608 /* if null just break, conv arg was already inited to 0 */
7609 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7611 /* to store later */
7612 mono_mb_emit_ldloc (mb, ccw_obj);
7613 if (klass && klass != mono_defaults.object_class) {
7614 mono_mb_emit_ptr (mb, t);
7615 mono_mb_emit_icall (mb, type_from_handle);
7616 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7618 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7619 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7620 else if (spec->native == MONO_NATIVE_IDISPATCH)
7621 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7622 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7623 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7625 g_assert_not_reached ();
7626 mono_mb_emit_stloc (mb, 3);
7627 mono_mb_emit_ldloc (mb, 3);
7629 mono_mb_emit_managed_call (mb, AddRef, NULL);
7630 mono_mb_emit_byte (mb, CEE_POP);
7632 mono_mb_patch_short_branch (mb, pos_null);
7637 g_assert_not_reached ();
7643 #endif /* DISABLE_COM */
7646 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7647 MonoMarshalSpec *spec,
7648 int conv_arg, MonoType **conv_arg_type,
7649 MarshalAction action)
7651 MonoMethodBuilder *mb = m->mb;
7652 static MonoMethod *get_object_for_native_variant = NULL;
7653 static MonoMethod *get_native_variant_for_object = NULL;
7655 mono_init_com_types ();
7657 if (!get_object_for_native_variant)
7658 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7659 g_assert (get_object_for_native_variant);
7661 if (!get_native_variant_for_object)
7662 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7663 g_assert (get_native_variant_for_object);
7666 case MARSHAL_ACTION_CONV_IN: {
7667 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7670 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7672 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7674 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7677 mono_mb_emit_ldarg (mb, argnum);
7679 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7680 mono_mb_emit_ldloc_addr (mb, conv_arg);
7681 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7685 case MARSHAL_ACTION_CONV_OUT: {
7686 static MonoMethod *variant_clear = NULL;
7689 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7690 g_assert (variant_clear);
7693 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7694 mono_mb_emit_ldarg (mb, argnum);
7695 mono_mb_emit_ldloc_addr (mb, conv_arg);
7696 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7697 mono_mb_emit_byte (mb, CEE_STIND_REF);
7700 mono_mb_emit_ldloc_addr (mb, conv_arg);
7701 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7705 case MARSHAL_ACTION_PUSH:
7707 mono_mb_emit_ldloc_addr (mb, conv_arg);
7709 mono_mb_emit_ldloc (mb, conv_arg);
7712 case MARSHAL_ACTION_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);
7718 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7719 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7722 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7724 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7726 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7730 mono_mb_emit_ldarg (mb, argnum);
7732 mono_mb_emit_ldarg_addr (mb, argnum);
7733 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7734 mono_mb_emit_stloc (mb, conv_arg);
7738 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7739 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7740 mono_mb_emit_ldloc (mb, conv_arg);
7741 mono_mb_emit_ldarg (mb, argnum);
7742 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7747 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7748 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7749 mono_mb_emit_exception_marshal_directive (mb, msg);
7754 g_assert_not_reached ();
7761 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7762 MonoMarshalSpec *spec,
7763 int conv_arg, MonoType **conv_arg_type,
7764 MarshalAction action)
7766 MonoMethodBuilder *mb = m->mb;
7767 MonoClass *klass = mono_class_from_mono_type (t);
7768 gboolean need_convert, need_free;
7769 MonoMarshalNative encoding;
7771 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7774 case MARSHAL_ACTION_CONV_IN:
7775 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7776 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7778 if (klass->element_class->blittable) {
7779 mono_mb_emit_ldarg (mb, argnum);
7781 mono_mb_emit_byte (mb, CEE_LDIND_I);
7782 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7783 mono_mb_emit_stloc (mb, conv_arg);
7786 guint32 label1, label2, label3;
7787 int index_var, src_var, dest_ptr, esize;
7788 MonoMarshalConv conv;
7789 gboolean is_string = FALSE;
7791 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7793 eklass = klass->element_class;
7795 if (eklass == mono_defaults.string_class) {
7797 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7799 else if (eklass == mono_defaults.stringbuilder_class) {
7801 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7806 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7807 mono_mb_emit_ldarg (mb, argnum);
7809 mono_mb_emit_byte (mb, CEE_LDIND_I);
7810 mono_mb_emit_stloc (mb, src_var);
7813 mono_mb_emit_ldloc (mb, src_var);
7814 mono_mb_emit_stloc (mb, conv_arg);
7815 mono_mb_emit_ldloc (mb, src_var);
7816 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7820 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7821 MonoException *exc = mono_get_exception_not_implemented (msg);
7824 mono_raise_exception (exc);
7829 esize = sizeof (gpointer);
7831 esize = mono_class_native_size (eklass, NULL);
7833 /* allocate space for the native struct and store the address */
7834 mono_mb_emit_icon (mb, esize);
7835 mono_mb_emit_ldloc (mb, src_var);
7836 mono_mb_emit_byte (mb, CEE_LDLEN);
7838 if (eklass == mono_defaults.string_class) {
7839 /* Make the array bigger for the terminating null */
7840 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7841 mono_mb_emit_byte (mb, CEE_ADD);
7843 mono_mb_emit_byte (mb, CEE_MUL);
7844 mono_mb_emit_byte (mb, CEE_PREFIX1);
7845 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7846 mono_mb_emit_stloc (mb, conv_arg);
7848 mono_mb_emit_ldloc (mb, conv_arg);
7849 mono_mb_emit_stloc (mb, dest_ptr);
7851 /* Emit marshalling loop */
7852 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7853 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7854 mono_mb_emit_stloc (mb, index_var);
7855 label2 = mono_mb_get_label (mb);
7856 mono_mb_emit_ldloc (mb, index_var);
7857 mono_mb_emit_ldloc (mb, src_var);
7858 mono_mb_emit_byte (mb, CEE_LDLEN);
7859 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7861 /* Emit marshalling code */
7864 mono_mb_emit_ldloc (mb, dest_ptr);
7865 mono_mb_emit_ldloc (mb, src_var);
7866 mono_mb_emit_ldloc (mb, index_var);
7867 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7868 mono_mb_emit_icall (mb, conv_to_icall (conv));
7869 mono_mb_emit_byte (mb, CEE_STIND_I);
7871 /* set the src_ptr */
7872 mono_mb_emit_ldloc (mb, src_var);
7873 mono_mb_emit_ldloc (mb, index_var);
7874 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7875 mono_mb_emit_stloc (mb, 0);
7878 mono_mb_emit_ldloc (mb, dest_ptr);
7879 mono_mb_emit_stloc (mb, 1);
7881 /* emit valuetype conversion code */
7882 emit_struct_conv (mb, eklass, FALSE);
7885 mono_mb_emit_add_to_local (mb, index_var, 1);
7886 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7888 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7890 mono_mb_patch_branch (mb, label3);
7892 if (eklass == mono_defaults.string_class) {
7893 /* Null terminate */
7894 mono_mb_emit_ldloc (mb, dest_ptr);
7895 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7896 mono_mb_emit_byte (mb, CEE_STIND_REF);
7899 mono_mb_patch_branch (mb, label1);
7904 case MARSHAL_ACTION_CONV_OUT:
7905 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7906 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);
7907 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7910 if (need_convert || need_free) {
7911 /* FIXME: Optimize blittable case */
7913 guint32 label1, label2, label3;
7914 int index_var, src_ptr, loc, esize;
7916 eklass = klass->element_class;
7917 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7918 esize = sizeof (gpointer);
7920 esize = mono_class_native_size (eklass, NULL);
7921 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7922 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7925 mono_mb_emit_ldarg (mb, argnum);
7927 mono_mb_emit_byte (mb, CEE_LDIND_I);
7928 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7930 mono_mb_emit_ldloc (mb, conv_arg);
7931 mono_mb_emit_stloc (mb, src_ptr);
7933 /* Emit marshalling loop */
7934 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7935 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7936 mono_mb_emit_stloc (mb, index_var);
7937 label2 = mono_mb_get_label (mb);
7938 mono_mb_emit_ldloc (mb, index_var);
7939 mono_mb_emit_ldarg (mb, argnum);
7941 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7942 mono_mb_emit_byte (mb, CEE_LDLEN);
7943 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7945 /* Emit marshalling code */
7947 if (eklass == mono_defaults.stringbuilder_class) {
7948 gboolean need_free2;
7949 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7951 g_assert (conv != -1);
7954 mono_mb_emit_ldarg (mb, argnum);
7956 mono_mb_emit_byte (mb, CEE_LDIND_I);
7957 mono_mb_emit_ldloc (mb, index_var);
7958 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7961 mono_mb_emit_ldloc (mb, src_ptr);
7962 mono_mb_emit_byte (mb, CEE_LDIND_I);
7964 mono_mb_emit_icall (mb, conv_to_icall (conv));
7968 mono_mb_emit_ldloc (mb, src_ptr);
7969 mono_mb_emit_byte (mb, CEE_LDIND_I);
7971 mono_mb_emit_icall (mb, mono_marshal_free);
7974 else if (eklass == mono_defaults.string_class) {
7977 mono_mb_emit_ldloc (mb, src_ptr);
7978 mono_mb_emit_byte (mb, CEE_LDIND_I);
7980 mono_mb_emit_icall (mb, mono_marshal_free);
7985 /* set the src_ptr */
7986 mono_mb_emit_ldloc (mb, src_ptr);
7987 mono_mb_emit_stloc (mb, 0);
7990 mono_mb_emit_ldarg (mb, argnum);
7992 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7993 mono_mb_emit_ldloc (mb, index_var);
7994 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7995 mono_mb_emit_stloc (mb, 1);
7997 /* emit valuetype conversion code */
7998 emit_struct_conv (mb, eklass, TRUE);
8002 mono_mb_emit_ldloc (mb, src_ptr);
8003 mono_mb_emit_stloc (mb, loc);
8004 mono_mb_emit_ldloc (mb, loc);
8006 emit_struct_free (mb, eklass, loc);
8010 mono_mb_emit_add_to_local (mb, index_var, 1);
8011 mono_mb_emit_add_to_local (mb, src_ptr, esize);
8013 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8015 mono_mb_patch_branch (mb, label1);
8016 mono_mb_patch_branch (mb, label3);
8020 case MARSHAL_ACTION_PUSH:
8022 mono_mb_emit_ldloc_addr (mb, conv_arg);
8024 mono_mb_emit_ldloc (mb, conv_arg);
8027 case MARSHAL_ACTION_CONV_RESULT:
8028 /* fixme: we need conversions here */
8029 mono_mb_emit_stloc (mb, 3);
8032 case MARSHAL_ACTION_MANAGED_CONV_IN: {
8034 guint32 label1, label2, label3;
8035 int index_var, src_ptr, loc, esize, param_num, num_elem;
8036 MonoMarshalConv conv;
8037 gboolean is_string = FALSE;
8039 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8040 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8043 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
8044 mono_mb_emit_exception_marshal_directive (mb, msg);
8048 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
8049 mono_mb_emit_exception_marshal_directive (mb, msg);
8052 if (spec->native != MONO_NATIVE_LPARRAY) {
8053 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
8054 mono_mb_emit_exception_marshal_directive (mb, msg);
8058 /* FIXME: t is from the method which is wrapped, not the delegate type */
8059 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
8061 param_num = spec->data.array_data.param_num;
8062 num_elem = spec->data.array_data.num_elem;
8063 if (spec->data.array_data.elem_mult == 0)
8064 /* param_num is not specified */
8067 if (param_num == -1) {
8068 if (num_elem <= 0) {
8069 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
8070 mono_mb_emit_exception_marshal_directive (mb, msg);
8075 /* FIXME: Optimize blittable case */
8077 eklass = klass->element_class;
8078 if (eklass == mono_defaults.string_class) {
8080 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
8082 else if (eklass == mono_defaults.stringbuilder_class) {
8084 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
8089 mono_marshal_load_type_info (eklass);
8092 esize = sizeof (gpointer);
8094 esize = mono_class_native_size (eklass, NULL);
8095 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8096 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8098 mono_mb_emit_byte (mb, CEE_LDNULL);
8099 mono_mb_emit_stloc (mb, conv_arg);
8101 /* Check param index */
8102 if (param_num != -1) {
8103 if (param_num >= m->sig->param_count) {
8104 char *msg = g_strdup ("Array size control parameter index is out of range.");
8105 mono_mb_emit_exception_marshal_directive (mb, msg);
8108 switch (m->sig->params [param_num]->type) {
8121 char *msg = g_strdup ("Array size control parameter must be an integral type.");
8122 mono_mb_emit_exception_marshal_directive (mb, msg);
8129 mono_mb_emit_ldarg (mb, argnum);
8130 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8132 mono_mb_emit_ldarg (mb, argnum);
8133 mono_mb_emit_stloc (mb, src_ptr);
8135 /* Create managed array */
8137 * The LPArray marshalling spec says that sometimes param_num starts
8138 * from 1, sometimes it starts from 0. But MS seems to allways start
8142 if (param_num == -1)
8143 mono_mb_emit_icon (mb, num_elem);
8145 /* FIXME: Add the two together */
8146 mono_mb_emit_ldarg (mb, param_num);
8148 mono_mb_emit_icon (mb, num_elem);
8149 mono_mb_emit_byte (mb, CEE_ADD);
8153 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
8154 mono_mb_emit_stloc (mb, conv_arg);
8156 if (eklass->blittable) {
8157 mono_mb_emit_ldloc (mb, conv_arg);
8158 mono_mb_emit_byte (mb, CEE_CONV_I);
8159 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8160 mono_mb_emit_byte (mb, CEE_ADD);
8161 mono_mb_emit_ldarg (mb, argnum);
8162 mono_mb_emit_ldloc (mb, conv_arg);
8163 mono_mb_emit_byte (mb, CEE_LDLEN);
8164 mono_mb_emit_icon (mb, esize);
8165 mono_mb_emit_byte (mb, CEE_MUL);
8166 mono_mb_emit_byte (mb, CEE_PREFIX1);
8167 mono_mb_emit_byte (mb, CEE_CPBLK);
8171 /* Emit marshalling loop */
8172 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8173 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8174 mono_mb_emit_stloc (mb, index_var);
8175 label2 = mono_mb_get_label (mb);
8176 mono_mb_emit_ldloc (mb, index_var);
8177 mono_mb_emit_ldloc (mb, conv_arg);
8178 mono_mb_emit_byte (mb, CEE_LDLEN);
8179 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8181 /* Emit marshalling code */
8183 g_assert (conv != -1);
8185 mono_mb_emit_ldloc (mb, conv_arg);
8186 mono_mb_emit_ldloc (mb, index_var);
8188 mono_mb_emit_ldloc (mb, src_ptr);
8189 mono_mb_emit_byte (mb, CEE_LDIND_I);
8191 mono_mb_emit_icall (mb, conv_to_icall (conv));
8192 mono_mb_emit_byte (mb, CEE_STELEM_REF);
8195 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8196 mono_mb_emit_exception_marshal_directive (mb, msg);
8200 mono_mb_emit_add_to_local (mb, index_var, 1);
8201 mono_mb_emit_add_to_local (mb, src_ptr, esize);
8203 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8205 mono_mb_patch_branch (mb, label1);
8206 mono_mb_patch_branch (mb, label3);
8210 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
8212 guint32 label1, label2, label3;
8213 int index_var, dest_ptr, loc, esize, param_num, num_elem;
8214 MonoMarshalConv conv;
8215 gboolean is_string = FALSE;
8218 /* Already handled in CONV_IN */
8221 /* These are already checked in CONV_IN */
8222 g_assert (!t->byref);
8223 g_assert (spec->native == MONO_NATIVE_LPARRAY);
8224 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
8226 param_num = spec->data.array_data.param_num;
8227 num_elem = spec->data.array_data.num_elem;
8229 if (spec->data.array_data.elem_mult == 0)
8230 /* param_num is not specified */
8233 if (param_num == -1) {
8234 if (num_elem <= 0) {
8235 g_assert_not_reached ();
8239 /* FIXME: Optimize blittable case */
8241 eklass = klass->element_class;
8242 if (eklass == mono_defaults.string_class) {
8244 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8246 else if (eklass == mono_defaults.stringbuilder_class) {
8248 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
8253 mono_marshal_load_type_info (eklass);
8256 esize = sizeof (gpointer);
8258 esize = mono_class_native_size (eklass, NULL);
8260 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8261 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8264 mono_mb_emit_ldloc (mb, conv_arg);
8265 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8267 mono_mb_emit_ldarg (mb, argnum);
8268 mono_mb_emit_stloc (mb, dest_ptr);
8270 if (eklass->blittable) {
8272 mono_mb_emit_ldarg (mb, argnum);
8274 mono_mb_emit_ldloc (mb, conv_arg);
8275 mono_mb_emit_byte (mb, CEE_CONV_I);
8276 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8277 mono_mb_emit_byte (mb, CEE_ADD);
8279 mono_mb_emit_ldloc (mb, conv_arg);
8280 mono_mb_emit_byte (mb, CEE_LDLEN);
8281 mono_mb_emit_icon (mb, esize);
8282 mono_mb_emit_byte (mb, CEE_MUL);
8283 mono_mb_emit_byte (mb, CEE_PREFIX1);
8284 mono_mb_emit_byte (mb, CEE_CPBLK);
8288 /* Emit marshalling loop */
8289 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8290 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8291 mono_mb_emit_stloc (mb, index_var);
8292 label2 = mono_mb_get_label (mb);
8293 mono_mb_emit_ldloc (mb, index_var);
8294 mono_mb_emit_ldloc (mb, conv_arg);
8295 mono_mb_emit_byte (mb, CEE_LDLEN);
8296 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8298 /* Emit marshalling code */
8300 g_assert (conv != -1);
8303 mono_mb_emit_ldloc (mb, dest_ptr);
8306 mono_mb_emit_ldloc (mb, conv_arg);
8307 mono_mb_emit_ldloc (mb, index_var);
8309 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8311 mono_mb_emit_icall (mb, conv_to_icall (conv));
8312 mono_mb_emit_byte (mb, CEE_STIND_I);
8315 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8316 mono_mb_emit_exception_marshal_directive (mb, msg);
8320 mono_mb_emit_add_to_local (mb, index_var, 1);
8321 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8323 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8325 mono_mb_patch_branch (mb, label1);
8326 mono_mb_patch_branch (mb, label3);
8330 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8332 guint32 label1, label2, label3;
8333 int index_var, src, dest, esize;
8334 MonoMarshalConv conv = -1;
8335 gboolean is_string = FALSE;
8337 g_assert (!t->byref);
8339 eklass = klass->element_class;
8341 mono_marshal_load_type_info (eklass);
8343 if (eklass == mono_defaults.string_class) {
8345 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8348 g_assert_not_reached ();
8352 esize = sizeof (gpointer);
8354 esize = mono_class_native_size (eklass, NULL);
8356 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8357 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8359 mono_mb_emit_stloc (mb, src);
8360 mono_mb_emit_ldloc (mb, src);
8361 mono_mb_emit_stloc (mb, 3);
8363 /* Check for null */
8364 mono_mb_emit_ldloc (mb, src);
8365 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8367 /* Allocate native array */
8368 mono_mb_emit_icon (mb, esize);
8369 mono_mb_emit_ldloc (mb, src);
8370 mono_mb_emit_byte (mb, CEE_LDLEN);
8372 if (eklass == mono_defaults.string_class) {
8373 /* Make the array bigger for the terminating null */
8374 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8375 mono_mb_emit_byte (mb, CEE_ADD);
8377 mono_mb_emit_byte (mb, CEE_MUL);
8378 mono_mb_emit_icall (mb, mono_marshal_alloc);
8379 mono_mb_emit_stloc (mb, dest);
8380 mono_mb_emit_ldloc (mb, dest);
8381 mono_mb_emit_stloc (mb, 3);
8383 /* Emit marshalling loop */
8384 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8385 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8386 mono_mb_emit_stloc (mb, index_var);
8387 label2 = mono_mb_get_label (mb);
8388 mono_mb_emit_ldloc (mb, index_var);
8389 mono_mb_emit_ldloc (mb, src);
8390 mono_mb_emit_byte (mb, CEE_LDLEN);
8391 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8393 /* Emit marshalling code */
8395 g_assert (conv != -1);
8398 mono_mb_emit_ldloc (mb, dest);
8401 mono_mb_emit_ldloc (mb, src);
8402 mono_mb_emit_ldloc (mb, index_var);
8404 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8406 mono_mb_emit_icall (mb, conv_to_icall (conv));
8407 mono_mb_emit_byte (mb, CEE_STIND_I);
8410 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8411 mono_mb_emit_exception_marshal_directive (mb, msg);
8415 mono_mb_emit_add_to_local (mb, index_var, 1);
8416 mono_mb_emit_add_to_local (mb, dest, esize);
8418 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8420 mono_mb_patch_branch (mb, label3);
8421 mono_mb_patch_branch (mb, label1);
8425 g_assert_not_reached ();
8432 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8433 MonoMarshalSpec *spec,
8434 int conv_arg, MonoType **conv_arg_type,
8435 MarshalAction action)
8437 MonoMethodBuilder *mb = m->mb;
8440 case MARSHAL_ACTION_CONV_IN: {
8441 MonoType *local_type;
8442 int variant_bool = 0;
8446 local_type = &mono_defaults.int32_class->byval_arg;
8448 switch (spec->native) {
8449 case MONO_NATIVE_I1:
8450 case MONO_NATIVE_U1:
8451 local_type = &mono_defaults.byte_class->byval_arg;
8453 case MONO_NATIVE_VARIANTBOOL:
8454 local_type = &mono_defaults.int16_class->byval_arg;
8458 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8459 local_type = &mono_defaults.int32_class->byval_arg;
8463 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8464 conv_arg = mono_mb_add_local (mb, local_type);
8465 mono_mb_emit_ldarg (mb, argnum);
8466 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8468 mono_mb_emit_byte (mb, CEE_NEG);
8469 mono_mb_emit_stloc (mb, conv_arg);
8473 case MARSHAL_ACTION_CONV_OUT:
8476 mono_mb_emit_ldarg (mb, argnum);
8477 mono_mb_emit_ldloc (mb, conv_arg);
8478 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8479 mono_mb_emit_byte (mb, CEE_NEG);
8480 mono_mb_emit_byte (mb, CEE_STIND_I1);
8483 case MARSHAL_ACTION_PUSH:
8485 mono_mb_emit_ldloc_addr (mb, conv_arg);
8487 mono_mb_emit_ldarg (mb, argnum);
8490 case MARSHAL_ACTION_CONV_RESULT:
8491 /* maybe we need to make sure that it fits within 8 bits */
8492 mono_mb_emit_stloc (mb, 3);
8496 g_assert_not_reached ();
8503 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8504 MonoMarshalSpec *spec, int conv_arg,
8505 MonoType **conv_arg_type, MarshalAction action)
8507 MonoMethodBuilder *mb = m->mb;
8510 case MARSHAL_ACTION_CONV_IN:
8511 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
8512 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8513 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8517 case MARSHAL_ACTION_PUSH:
8518 mono_mb_emit_ldarg (mb, argnum);
8521 case MARSHAL_ACTION_CONV_RESULT:
8522 /* no conversions necessary */
8523 mono_mb_emit_stloc (mb, 3);
8534 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8535 MonoMarshalSpec *spec, int conv_arg,
8536 MonoType **conv_arg_type, MarshalAction action)
8538 MonoMethodBuilder *mb = m->mb;
8541 case MARSHAL_ACTION_PUSH:
8542 /* fixme: dont know how to marshal that. We cant simply
8543 * convert it to a one byte UTF8 character, because an
8544 * unicode character may need more that one byte in UTF8 */
8545 mono_mb_emit_ldarg (mb, argnum);
8548 case MARSHAL_ACTION_CONV_RESULT:
8549 /* fixme: we need conversions here */
8550 mono_mb_emit_stloc (mb, 3);
8561 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8562 MonoMarshalSpec *spec, int conv_arg,
8563 MonoType **conv_arg_type, MarshalAction action)
8565 MonoMethodBuilder *mb = m->mb;
8568 case MARSHAL_ACTION_PUSH:
8569 mono_mb_emit_ldarg (mb, argnum);
8572 case MARSHAL_ACTION_CONV_RESULT:
8573 /* no conversions necessary */
8574 mono_mb_emit_stloc (mb, 3);
8585 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8586 MonoMarshalSpec *spec, int conv_arg,
8587 MonoType **conv_arg_type, MarshalAction action)
8589 /* Ensure that we have marshalling info for this param */
8590 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8592 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8593 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8595 if (spec && spec->native == MONO_NATIVE_ASANY)
8596 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8599 case MONO_TYPE_VALUETYPE:
8600 if (t->data.klass == mono_defaults.handleref_class)
8601 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8603 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8604 case MONO_TYPE_STRING:
8605 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8606 case MONO_TYPE_CLASS:
8607 case MONO_TYPE_OBJECT:
8608 if (spec && spec->native == MONO_NATIVE_STRUCT)
8609 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8612 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8613 spec->native == MONO_NATIVE_IDISPATCH ||
8614 spec->native == MONO_NATIVE_INTERFACE))
8615 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8618 if (mono_defaults.safehandle_class != NULL &&
8619 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8620 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8622 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8623 case MONO_TYPE_ARRAY:
8624 case MONO_TYPE_SZARRAY:
8625 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8626 case MONO_TYPE_BOOLEAN:
8627 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8629 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8630 case MONO_TYPE_CHAR:
8631 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8644 case MONO_TYPE_FNPTR:
8645 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8646 case MONO_TYPE_GENERICINST:
8647 if (mono_type_generic_inst_is_valuetype (t))
8648 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8650 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8657 * mono_marshal_emit_native_wrapper:
8658 * @image: the image to use for looking up custom marshallers
8659 * @sig: The signature of the native function
8660 * @piinfo: Marshalling information
8661 * @mspecs: Marshalling information
8662 * @aot: whenever the created method will be compiled by the AOT compiler
8663 * @method: if non-NULL, the pinvoke method to call
8664 * @check_exceptions: Whenever to check for pending exceptions after the native call
8666 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8669 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8671 EmitMarshalContext m;
8672 MonoMethodSignature *csig;
8674 int i, argnum, *tmp_locals;
8676 static MonoMethodSignature *get_last_error_sig = NULL;
8681 /* we copy the signature, so that we can set pinvoke to 0 */
8682 csig = signature_dup (mb->method->klass->image, sig);
8687 /* we allocate local for use with emit_struct_conv() */
8688 /* allocate local 0 (pointer) src_ptr */
8689 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8690 /* allocate local 1 (pointer) dst_ptr */
8691 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8692 /* allocate local 2 (boolean) delete_old */
8693 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8695 /* delete_old = FALSE */
8696 mono_mb_emit_icon (mb, 0);
8697 mono_mb_emit_stloc (mb, 2);
8699 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8700 /* allocate local 3 to store the return value */
8701 mono_mb_add_local (mb, sig->ret);
8704 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8705 /* Return type custom marshaling */
8707 * Since we can't determine the return type of the unmanaged function,
8708 * we assume it returns a pointer, and pass that pointer to
8709 * MarshalNativeToManaged.
8711 csig->ret = &mono_defaults.int_class->byval_arg;
8714 /* we first do all conversions */
8715 tmp_locals = alloca (sizeof (int) * sig->param_count);
8716 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8718 for (i = 0; i < sig->param_count; i ++) {
8719 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8722 /* push all arguments */
8725 mono_mb_emit_byte (mb, CEE_LDARG_0);
8727 for (i = 0; i < sig->param_count; i++) {
8728 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8731 /* call the native method */
8732 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8734 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8736 g_assert_not_reached ();
8741 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8742 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8743 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8744 mono_mb_emit_calli (mb, csig);
8746 mono_mb_emit_native_call (mb, csig, func);
8750 /* Set LastError if needed */
8751 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8752 if (!get_last_error_sig) {
8753 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8754 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8755 get_last_error_sig->pinvoke = 1;
8758 #ifdef PLATFORM_WIN32
8760 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8761 * clobber its value.
8763 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8764 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8766 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8770 /* convert the result */
8771 if (!sig->ret->byref) {
8772 MonoMarshalSpec *spec = mspecs [0];
8773 type = sig->ret->type;
8775 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8776 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8781 case MONO_TYPE_VOID:
8783 case MONO_TYPE_VALUETYPE:
8784 klass = sig->ret->data.klass;
8785 if (klass->enumtype) {
8786 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8789 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8803 case MONO_TYPE_FNPTR:
8804 case MONO_TYPE_STRING:
8805 case MONO_TYPE_CLASS:
8806 case MONO_TYPE_OBJECT:
8807 case MONO_TYPE_BOOLEAN:
8808 case MONO_TYPE_ARRAY:
8809 case MONO_TYPE_SZARRAY:
8810 case MONO_TYPE_CHAR:
8812 case MONO_TYPE_GENERICINST:
8813 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8815 case MONO_TYPE_TYPEDBYREF:
8817 g_warning ("return type 0x%02x unknown", sig->ret->type);
8818 g_assert_not_reached ();
8822 mono_mb_emit_stloc (mb, 3);
8826 * Need to call this after converting the result since MONO_VTADDR needs
8827 * to be adjacent to the call instruction.
8829 if (check_exceptions)
8830 emit_thread_interrupt_checkpoint (mb);
8832 /* we need to convert byref arguments back and free string arrays */
8833 for (i = 0; i < sig->param_count; i++) {
8834 MonoType *t = sig->params [i];
8835 MonoMarshalSpec *spec = mspecs [i + 1];
8837 argnum = i + sig->hasthis;
8839 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8840 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8845 case MONO_TYPE_STRING:
8846 case MONO_TYPE_VALUETYPE:
8847 case MONO_TYPE_CLASS:
8848 case MONO_TYPE_OBJECT:
8849 case MONO_TYPE_SZARRAY:
8850 case MONO_TYPE_BOOLEAN:
8851 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8856 if (!MONO_TYPE_IS_VOID(sig->ret))
8857 mono_mb_emit_ldloc (mb, 3);
8859 mono_mb_emit_byte (mb, CEE_RET);
8863 * mono_marshal_get_native_wrapper:
8864 * @method: The MonoMethod to wrap.
8865 * @check_exceptions: Whenever to check for pending exceptions
8867 * generates IL code for the pinvoke wrapper (the generated method
8868 * calls the unmanaged code in piinfo->addr)
8871 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8873 MonoMethodSignature *sig, *csig;
8874 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8875 MonoMethodBuilder *mb;
8876 MonoMarshalSpec **mspecs;
8879 gboolean pinvoke = FALSE;
8882 const char *exc_class = "MissingMethodException";
8883 const char *exc_arg = NULL;
8885 g_assert (method != NULL);
8886 g_assert (mono_method_signature (method)->pinvoke);
8888 cache = method->klass->image->native_wrapper_cache;
8889 if ((res = mono_marshal_find_in_cache (cache, method)))
8892 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8894 return cominterop_get_native_wrapper (method);
8896 g_assert_not_reached ();
8900 sig = mono_method_signature (method);
8902 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8903 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8906 if (!piinfo->addr) {
8908 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8909 exc_arg = "Method contains unsupported native code";
8911 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8913 piinfo->addr = mono_lookup_internal_call (method);
8916 /* hack - redirect certain string constructors to CreateString */
8917 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8918 g_assert (!pinvoke);
8919 g_assert (method->string_ctor);
8920 g_assert (sig->hasthis);
8922 /* CreateString returns a value */
8923 csig = signature_dup (method->klass->image, sig);
8924 csig->ret = &mono_defaults.string_class->byval_arg;
8928 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8929 if (!strcmp ("CreateString", res->name) &&
8930 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8932 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8933 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8935 /* create a wrapper to preserve .ctor in stack trace */
8936 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8938 mono_mb_emit_byte (mb, CEE_LDARG_0);
8939 for (i = 1; i <= csig->param_count; i++)
8940 mono_mb_emit_ldarg (mb, i);
8941 mono_mb_emit_managed_call (mb, res, NULL);
8942 mono_mb_emit_byte (mb, CEE_RET);
8944 /* use native_wrapper_cache because internal calls are looked up there */
8945 res = mono_mb_create_and_cache (cache, method,
8946 mb, csig, csig->param_count + 1);
8954 /* exception will be thrown */
8955 piinfo->addr = NULL;
8956 g_warning ("cannot find CreateString for .ctor");
8959 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8961 mb->method->save_lmf = 1;
8964 * In AOT mode and embedding scenarios, it is possible that the icall is not
8965 * registered in the runtime doing the AOT compilation.
8967 if (!piinfo->addr && !aot) {
8968 mono_mb_emit_exception (mb, exc_class, exc_arg);
8969 csig = signature_dup (method->klass->image, sig);
8971 res = mono_mb_create_and_cache (cache, method,
8972 mb, csig, csig->param_count + 16);
8977 /* internal calls: we simply push all arguments and call the method (no conversions) */
8978 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8980 /* hack - string constructors returns a value */
8981 if (method->string_ctor) {
8982 csig = signature_dup (method->klass->image, sig);
8983 csig->ret = &mono_defaults.string_class->byval_arg;
8988 mono_mb_emit_byte (mb, CEE_LDARG_0);
8990 for (i = 0; i < sig->param_count; i++)
8991 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8994 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8995 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8996 mono_mb_emit_calli (mb, csig);
8998 g_assert (piinfo->addr);
8999 mono_mb_emit_native_call (mb, csig, piinfo->addr);
9001 if (check_exceptions)
9002 emit_thread_interrupt_checkpoint (mb);
9003 mono_mb_emit_byte (mb, CEE_RET);
9005 csig = signature_dup (method->klass->image, csig);
9007 res = mono_mb_create_and_cache (cache, method,
9008 mb, csig, csig->param_count + 16);
9015 g_assert (piinfo->addr);
9017 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
9018 mono_method_get_marshal_info (method, mspecs);
9020 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
9022 csig = signature_dup (method->klass->image, sig);
9024 res = mono_mb_create_and_cache (cache, method,
9025 mb, csig, csig->param_count + 16);
9028 for (i = sig->param_count; i >= 0; i--)
9030 mono_metadata_free_marshal_spec (mspecs [i]);
9033 /* 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)); */
9039 * mono_marshal_get_native_func_wrapper:
9040 * @image: The image to use for memory allocation and for looking up custom marshallers.
9041 * @sig: The signature of the function
9042 * @func: The native function to wrap
9044 * Returns a wrapper method around native functions, similar to the pinvoke
9048 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
9049 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
9051 MonoMethodSignature *csig;
9053 MonoMethodBuilder *mb;
9058 cache = image->native_wrapper_cache;
9059 if ((res = mono_marshal_find_in_cache (cache, func)))
9062 name = g_strdup_printf ("wrapper_native_%p", func);
9063 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
9064 mb->method->save_lmf = 1;
9066 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
9068 csig = signature_dup (image, sig);
9070 res = mono_mb_create_and_cache (cache, func,
9071 mb, csig, csig->param_count + 16);
9074 /* 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)); */
9079 /* FIXME: moving GC */
9081 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
9083 MonoMethodSignature *sig, *csig;
9089 /* allocate local 0 (pointer) src_ptr */
9090 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9091 /* allocate local 1 (pointer) dst_ptr */
9092 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9093 /* allocate local 2 (boolean) delete_old */
9094 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9096 if (!MONO_TYPE_IS_VOID(sig->ret)) {
9097 /* allocate local 3 to store the return value */
9098 mono_mb_add_local (mb, sig->ret);
9101 mono_mb_emit_icon (mb, 0);
9102 mono_mb_emit_stloc (mb, 2);
9104 /* we first do all conversions */
9105 tmp_locals = alloca (sizeof (int) * sig->param_count);
9106 for (i = 0; i < sig->param_count; i ++) {
9107 MonoType *t = sig->params [i];
9110 case MONO_TYPE_OBJECT:
9111 case MONO_TYPE_CLASS:
9112 case MONO_TYPE_VALUETYPE:
9113 case MONO_TYPE_ARRAY:
9114 case MONO_TYPE_SZARRAY:
9115 case MONO_TYPE_STRING:
9116 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
9125 emit_thread_interrupt_checkpoint (mb);
9127 /* fixme: howto handle this ? */
9130 /* FIXME: need a solution for the moving GC here */
9131 mono_mb_emit_ptr (mb, this);
9134 g_assert_not_reached ();
9138 for (i = 0; i < sig->param_count; i++) {
9139 MonoType *t = sig->params [i];
9141 if (tmp_locals [i]) {
9143 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
9145 mono_mb_emit_ldloc (mb, tmp_locals [i]);
9148 mono_mb_emit_ldarg (mb, i);
9151 mono_mb_emit_managed_call (mb, method, NULL);
9153 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
9154 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9157 if (!sig->ret->byref) {
9158 switch (sig->ret->type) {
9159 case MONO_TYPE_VOID:
9161 case MONO_TYPE_BOOLEAN:
9164 case MONO_TYPE_CHAR:
9176 case MONO_TYPE_OBJECT:
9177 mono_mb_emit_stloc (mb, 3);
9179 case MONO_TYPE_STRING:
9180 csig->ret = &mono_defaults.int_class->byval_arg;
9181 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9183 case MONO_TYPE_VALUETYPE:
9184 case MONO_TYPE_CLASS:
9185 case MONO_TYPE_SZARRAY:
9186 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9189 g_warning ("return type 0x%02x unknown", sig->ret->type);
9190 g_assert_not_reached ();
9193 mono_mb_emit_stloc (mb, 3);
9196 /* Convert byref arguments back */
9197 for (i = 0; i < sig->param_count; i ++) {
9198 MonoType *t = sig->params [i];
9199 MonoMarshalSpec *spec = mspecs [i + 1];
9201 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
9202 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9204 else if (t->byref) {
9206 case MONO_TYPE_CLASS:
9207 case MONO_TYPE_VALUETYPE:
9208 case MONO_TYPE_OBJECT:
9209 case MONO_TYPE_STRING:
9210 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9214 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
9215 /* The [Out] information is encoded in the delegate signature */
9217 case MONO_TYPE_SZARRAY:
9218 case MONO_TYPE_CLASS:
9219 case MONO_TYPE_VALUETYPE:
9220 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9223 g_assert_not_reached ();
9228 if (m->retobj_var) {
9229 mono_mb_emit_ldloc (mb, m->retobj_var);
9230 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9231 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
9234 if (!MONO_TYPE_IS_VOID(sig->ret))
9235 mono_mb_emit_ldloc (mb, 3);
9236 mono_mb_emit_byte (mb, CEE_RET);
9242 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
9244 MonoMethodSignature *sig;
9247 #ifdef PLATFORM_WIN32
9249 * Under windows, delegates passed to native code must use the STDCALL
9250 * calling convention.
9252 csig->call_convention = MONO_CALL_STDCALL;
9255 sig = mono_method_signature (method);
9257 /* Change default calling convention if needed */
9258 /* Why is this a modopt ? */
9259 if (sig->ret && sig->ret->num_mods) {
9260 for (i = 0; i < sig->ret->num_mods; ++i) {
9261 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
9262 g_assert (cmod_class);
9263 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
9264 if (!strcmp (cmod_class->name, "CallConvCdecl"))
9265 csig->call_convention = MONO_CALL_C;
9266 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
9267 csig->call_convention = MONO_CALL_STDCALL;
9268 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
9269 csig->call_convention = MONO_CALL_FASTCALL;
9270 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
9271 csig->call_convention = MONO_CALL_THISCALL;
9278 * generates IL code to call managed methods from unmanaged code
9281 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
9283 static MonoClass *UnmanagedFunctionPointerAttribute;
9284 MonoMethodSignature *sig, *csig, *invoke_sig;
9285 MonoMethodBuilder *mb;
9286 MonoMethod *res, *invoke;
9287 MonoMarshalSpec **mspecs;
9288 MonoMethodPInvoke piinfo;
9291 EmitMarshalContext m;
9293 g_assert (method != NULL);
9294 g_assert (!mono_method_signature (method)->pinvoke);
9297 * FIXME: Should cache the method+delegate type pair, since the same method
9298 * could be called with different delegates, thus different marshalling
9301 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
9302 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
9305 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
9306 invoke_sig = mono_method_signature (invoke);
9308 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9309 mono_method_get_marshal_info (invoke, mspecs);
9311 sig = mono_method_signature (method);
9313 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9316 /* we copy the signature, so that we can modify it */
9318 /* Need to free this later */
9319 csig = mono_metadata_signature_dup (sig);
9321 csig = signature_dup (method->klass->image, sig);
9330 m.image = method->klass->image;
9332 mono_marshal_set_callconv_from_modopt (invoke, csig);
9334 /* Handle the UnmanagedFunctionPointerAttribute */
9335 if (!UnmanagedFunctionPointerAttribute)
9336 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9338 /* The attribute is only available in Net 2.0 */
9339 if (UnmanagedFunctionPointerAttribute) {
9340 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9341 MonoCustomAttrInfo *cinfo;
9344 * The pinvoke attributes are stored in a real custom attribute so we have to
9347 cinfo = mono_custom_attrs_from_class (delegate_klass);
9349 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9351 memset (&piinfo, 0, sizeof (piinfo));
9353 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9355 csig->call_convention = attr->call_conv - 1;
9358 mono_custom_attrs_free (cinfo);
9362 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9365 res = mono_mb_create_and_cache (cache, method,
9366 mb, csig, sig->param_count + 16);
9369 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9373 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9375 mono_metadata_free_marshal_spec (mspecs [i]);
9378 /* 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)); */
9384 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9387 MonoMethodSignature *sig;
9388 MonoMethodBuilder *mb;
9393 method = mono_get_method (image, token, NULL);
9396 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9397 MonoMethodSignature *csig;
9398 MonoMarshalSpec **mspecs;
9399 EmitMarshalContext m;
9401 sig = mono_method_signature (method);
9402 g_assert (!sig->hasthis);
9404 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9405 mono_method_get_marshal_info (method, mspecs);
9407 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9408 csig = signature_dup (image, sig);
9419 mono_marshal_set_callconv_from_modopt (method, csig);
9421 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9423 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
9426 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9429 for (i = sig->param_count; i >= 0; i--)
9431 mono_metadata_free_marshal_spec (mspecs [i]);
9434 return mono_compile_method (method);
9437 sig = mono_method_signature (method);
9438 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9440 param_count = sig->param_count + sig->hasthis;
9441 for (i = 0; i < param_count; i++)
9442 mono_mb_emit_ldarg (mb, i);
9444 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9445 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9447 mono_mb_emit_op (mb, CEE_CALL, method);
9448 mono_mb_emit_byte (mb, CEE_RET);
9451 method = mono_mb_create_method (mb, sig, param_count);
9454 return mono_compile_method (method);
9457 static MonoReflectionType *
9458 type_from_handle (MonoType *handle)
9460 MonoDomain *domain = mono_domain_get ();
9461 MonoClass *klass = mono_class_from_mono_type (handle);
9463 MONO_ARCH_SAVE_REGS;
9465 mono_class_init (klass);
9466 return mono_type_get_object (domain, handle);
9470 * mono_marshal_get_isinst:
9471 * @klass: the type of the field
9473 * This method generates a function which can be used to check if an object is
9474 * an instance of the given type, icluding the case where the object is a proxy.
9475 * The generated function has the following signature:
9476 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9479 mono_marshal_get_isinst (MonoClass *klass)
9481 static MonoMethodSignature *isint_sig = NULL;
9484 int pos_was_ok, pos_failed, pos_end, pos_end2;
9486 MonoMethodBuilder *mb;
9488 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9489 if ((res = mono_marshal_find_in_cache (cache, klass)))
9493 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9494 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9495 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9496 isint_sig->pinvoke = 0;
9499 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9500 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9503 mb->method->save_lmf = 1;
9505 /* check if the object is a proxy that needs special cast */
9506 mono_mb_emit_ldarg (mb, 0);
9507 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9508 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9510 /* The result of MONO_ISINST can be:
9511 0) the type check succeeded
9512 1) the type check did not succeed
9513 2) a CanCastTo call is needed */
9515 mono_mb_emit_byte (mb, CEE_DUP);
9516 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9518 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9519 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9521 /* get the real proxy from the transparent proxy*/
9523 mono_mb_emit_ldarg (mb, 0);
9524 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9525 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9529 mono_mb_patch_branch (mb, pos_failed);
9530 mono_mb_emit_byte (mb, CEE_LDNULL);
9531 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9535 mono_mb_patch_branch (mb, pos_was_ok);
9536 mono_mb_emit_byte (mb, CEE_POP);
9537 mono_mb_emit_ldarg (mb, 0);
9541 mono_mb_patch_branch (mb, pos_end);
9542 mono_mb_patch_branch (mb, pos_end2);
9543 mono_mb_emit_byte (mb, CEE_RET);
9545 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9552 * mono_marshal_get_castclass:
9553 * @klass: the type of the field
9555 * This method generates a function which can be used to cast an object to
9556 * an instance of the given type, icluding the case where the object is a proxy.
9557 * The generated function has the following signature:
9558 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9561 mono_marshal_get_castclass (MonoClass *klass)
9563 static MonoMethodSignature *castclass_sig = NULL;
9566 int pos_was_ok, pos_was_ok2;
9568 MonoMethodBuilder *mb;
9570 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9571 if ((res = mono_marshal_find_in_cache (cache, klass)))
9574 if (!castclass_sig) {
9575 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9576 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9577 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9578 castclass_sig->pinvoke = 0;
9581 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9582 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9585 mb->method->save_lmf = 1;
9587 /* check if the object is a proxy that needs special cast */
9588 mono_mb_emit_ldarg (mb, 0);
9589 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9590 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9592 /* The result of MONO_ISINST can be:
9593 0) the cast is valid
9594 1) cast of unknown proxy type
9595 or an exception if the cast is is invalid
9598 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9600 /* get the real proxy from the transparent proxy*/
9602 mono_mb_emit_ldarg (mb, 0);
9603 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9604 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9607 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9610 mono_mb_patch_branch (mb, pos_was_ok);
9611 mono_mb_patch_branch (mb, pos_was_ok2);
9612 mono_mb_emit_ldarg (mb, 0);
9615 mono_mb_emit_byte (mb, CEE_RET);
9617 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9624 mono_marshal_get_proxy_cancast (MonoClass *klass)
9626 static MonoMethodSignature *isint_sig = NULL;
9629 int pos_failed, pos_end;
9631 MonoMethod *can_cast_to;
9632 MonoMethodDesc *desc;
9633 MonoMethodBuilder *mb;
9635 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9636 if ((res = mono_marshal_find_in_cache (cache, klass)))
9640 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9641 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9642 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9643 isint_sig->pinvoke = 0;
9646 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9647 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9650 mb->method->save_lmf = 1;
9652 /* get the real proxy from the transparent proxy*/
9653 mono_mb_emit_ldarg (mb, 0);
9654 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9655 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9657 /* get the reflection type from the type handle */
9658 mono_mb_emit_ptr (mb, &klass->byval_arg);
9659 mono_mb_emit_icall (mb, type_from_handle);
9661 mono_mb_emit_ldarg (mb, 0);
9663 /* make the call to CanCastTo (type, ob) */
9664 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9665 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9666 g_assert (can_cast_to);
9667 mono_method_desc_free (desc);
9668 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9670 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9672 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9673 mono_mb_emit_ptr (mb, &klass->byval_arg);
9674 mono_mb_emit_icall (mb, type_from_handle);
9675 mono_mb_emit_ldarg (mb, 0);
9677 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9678 emit_thread_interrupt_checkpoint (mb);
9680 mono_mb_emit_ldarg (mb, 0);
9681 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9685 mono_mb_patch_branch (mb, pos_failed);
9686 mono_mb_emit_byte (mb, CEE_LDNULL);
9690 mono_mb_patch_branch (mb, pos_end);
9691 mono_mb_emit_byte (mb, CEE_RET);
9693 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9700 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9703 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9704 klass = mono_class_from_mono_type (rtype->type);
9705 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9709 * mono_marshal_get_struct_to_ptr:
9712 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9715 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9717 MonoMethodBuilder *mb;
9718 static MonoMethod *stoptr = NULL;
9721 g_assert (klass != NULL);
9723 mono_marshal_load_type_info (klass);
9725 if (klass->marshal_info->str_to_ptr)
9726 return klass->marshal_info->str_to_ptr;
9729 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9732 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9734 if (klass->blittable) {
9735 mono_mb_emit_byte (mb, CEE_LDARG_1);
9736 mono_mb_emit_byte (mb, CEE_LDARG_0);
9737 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9738 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9739 mono_mb_emit_byte (mb, CEE_PREFIX1);
9740 mono_mb_emit_byte (mb, CEE_CPBLK);
9743 /* allocate local 0 (pointer) src_ptr */
9744 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9745 /* allocate local 1 (pointer) dst_ptr */
9746 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9747 /* allocate local 2 (boolean) delete_old */
9748 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9749 mono_mb_emit_byte (mb, CEE_LDARG_2);
9750 mono_mb_emit_stloc (mb, 2);
9752 /* initialize src_ptr to point to the start of object data */
9753 mono_mb_emit_byte (mb, CEE_LDARG_0);
9754 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9755 mono_mb_emit_stloc (mb, 0);
9757 /* initialize dst_ptr */
9758 mono_mb_emit_byte (mb, CEE_LDARG_1);
9759 mono_mb_emit_stloc (mb, 1);
9761 emit_struct_conv (mb, klass, FALSE);
9764 mono_mb_emit_byte (mb, CEE_RET);
9766 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9769 klass->marshal_info->str_to_ptr = res;
9774 * mono_marshal_get_ptr_to_struct:
9777 * generates IL code for PtrToStructure (IntPtr src, object structure)
9780 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9782 MonoMethodBuilder *mb;
9783 static MonoMethodSignature *ptostr = NULL;
9786 g_assert (klass != NULL);
9788 mono_marshal_load_type_info (klass);
9790 if (klass->marshal_info->ptr_to_str)
9791 return klass->marshal_info->ptr_to_str;
9794 MonoMethodSignature *sig;
9796 /* Create the signature corresponding to
9797 static void PtrToStructure (IntPtr ptr, object structure);
9798 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9799 sig = mono_create_icall_signature ("void ptr object");
9800 sig = signature_dup (mono_defaults.corlib, sig);
9802 mono_memory_barrier ();
9806 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9808 if (klass->blittable) {
9809 mono_mb_emit_byte (mb, CEE_LDARG_1);
9810 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9811 mono_mb_emit_byte (mb, CEE_LDARG_0);
9812 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9813 mono_mb_emit_byte (mb, CEE_PREFIX1);
9814 mono_mb_emit_byte (mb, CEE_CPBLK);
9817 /* allocate local 0 (pointer) src_ptr */
9818 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9819 /* allocate local 1 (pointer) dst_ptr */
9820 mono_mb_add_local (mb, &klass->this_arg);
9822 /* initialize src_ptr to point to the start of object data */
9823 mono_mb_emit_byte (mb, CEE_LDARG_0);
9824 mono_mb_emit_stloc (mb, 0);
9826 /* initialize dst_ptr */
9827 mono_mb_emit_byte (mb, CEE_LDARG_1);
9828 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9829 mono_mb_emit_stloc (mb, 1);
9831 emit_struct_conv (mb, klass, TRUE);
9834 mono_mb_emit_byte (mb, CEE_RET);
9836 res = mono_mb_create_method (mb, ptostr, 0);
9839 klass->marshal_info->ptr_to_str = res;
9844 * generates IL code for the synchronized wrapper: the generated method
9845 * calls METHOD while locking 'this' or the parent type.
9848 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9850 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9851 MonoMethodSignature *sig;
9852 MonoExceptionClause *clause;
9853 MonoMethodBuilder *mb;
9856 int i, pos, this_local, ret_local = 0;
9860 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9863 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9864 if ((res = mono_marshal_find_in_cache (cache, method)))
9867 sig = signature_dup (method->klass->image, mono_method_signature (method));
9870 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9873 if (!MONO_TYPE_IS_VOID (sig->ret))
9874 ret_local = mono_mb_add_local (mb, sig->ret);
9876 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9877 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9878 /* This will throw the type load exception when the wrapper is compiled */
9879 mono_mb_emit_byte (mb, CEE_LDNULL);
9880 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9881 mono_mb_emit_byte (mb, CEE_POP);
9883 if (!MONO_TYPE_IS_VOID (sig->ret))
9884 mono_mb_emit_ldloc (mb, ret_local);
9885 mono_mb_emit_byte (mb, CEE_RET);
9887 res = mono_mb_create_and_cache (cache, method,
9888 mb, sig, sig->param_count + 16);
9895 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9897 mono_loader_lock ();
9898 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9899 mono_loader_unlock ();
9900 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9902 mono_loader_lock ();
9904 if (!enter_method) {
9905 MonoMethodDesc *desc;
9907 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9908 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9909 g_assert (enter_method);
9910 mono_method_desc_free (desc);
9912 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9913 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9914 g_assert (exit_method);
9915 mono_method_desc_free (desc);
9917 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9918 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9919 g_assert (gettypefromhandle_method);
9920 mono_method_desc_free (desc);
9923 mono_loader_unlock ();
9925 /* Push this or the type object */
9926 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9927 /* We have special handling for this in the JIT */
9928 int index = mono_mb_add_data (mb, method->klass);
9929 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9930 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9931 mono_mb_emit_i4 (mb, index);
9933 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9936 mono_mb_emit_ldarg (mb, 0);
9937 mono_mb_emit_stloc (mb, this_local);
9939 /* Call Monitor::Enter() */
9940 mono_mb_emit_ldloc (mb, this_local);
9941 mono_mb_emit_managed_call (mb, enter_method, NULL);
9943 clause->try_offset = mono_mb_get_label (mb);
9945 /* Call the method */
9947 mono_mb_emit_ldarg (mb, 0);
9948 for (i = 0; i < sig->param_count; i++)
9949 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9951 mono_mb_emit_managed_call (mb, method, NULL);
9953 if (!MONO_TYPE_IS_VOID (sig->ret))
9954 mono_mb_emit_stloc (mb, ret_local);
9956 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9958 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9959 clause->handler_offset = mono_mb_get_label (mb);
9961 /* Call Monitor::Exit() */
9962 mono_mb_emit_ldloc (mb, this_local);
9963 mono_mb_emit_managed_call (mb, exit_method, NULL);
9964 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9966 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9968 mono_mb_patch_branch (mb, pos);
9969 if (!MONO_TYPE_IS_VOID (sig->ret))
9970 mono_mb_emit_ldloc (mb, ret_local);
9971 mono_mb_emit_byte (mb, CEE_RET);
9973 mono_mb_set_clauses (mb, 1, clause);
9975 res = mono_mb_create_and_cache (cache, method,
9976 mb, sig, sig->param_count + 16);
9984 * the returned method calls 'method' unboxing the this argument
9987 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9989 MonoMethodSignature *sig = mono_method_signature (method);
9991 MonoMethodBuilder *mb;
9995 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9996 if ((res = mono_marshal_find_in_cache (cache, method)))
9999 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
10001 g_assert (sig->hasthis);
10003 mono_mb_emit_ldarg (mb, 0);
10004 mono_mb_emit_icon (mb, sizeof (MonoObject));
10005 mono_mb_emit_byte (mb, CEE_ADD);
10006 for (i = 0; i < sig->param_count; ++i)
10007 mono_mb_emit_ldarg (mb, i + 1);
10008 mono_mb_emit_managed_call (mb, method, NULL);
10009 mono_mb_emit_byte (mb, CEE_RET);
10011 res = mono_mb_create_and_cache (cache, method,
10012 mb, sig, sig->param_count + 16);
10015 /* 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)); */
10021 mono_marshal_get_stelemref ()
10023 static MonoMethod* ret = NULL;
10024 MonoMethodSignature *sig;
10025 MonoMethodBuilder *mb;
10027 guint32 b1, b2, b3, b4;
10029 int aklass, vklass;
10030 int array_slot_addr;
10035 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10038 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10040 /* void stelemref (void* array, int idx, void* value) */
10041 sig->ret = &mono_defaults.void_class->byval_arg;
10042 sig->params [0] = &mono_defaults.object_class->byval_arg;
10043 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10044 sig->params [2] = &mono_defaults.object_class->byval_arg;
10046 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10047 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10048 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10052 <ldelema (bound check)>
10056 aklass = array->vtable->klass->element_class;
10057 vklass = value->vtable->klass;
10059 if (vklass->idepth < aklass->idepth)
10062 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10066 *array_slot_addr = value;
10070 if (mono_object_isinst (value, aklass))
10073 throw new ArrayTypeMismatchException ();
10076 /* ldelema (implicit bound check) */
10077 mono_mb_emit_ldarg (mb, 0);
10078 mono_mb_emit_ldarg (mb, 1);
10079 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10080 mono_mb_emit_stloc (mb, array_slot_addr);
10082 /* if (!value) goto do_store */
10083 mono_mb_emit_ldarg (mb, 2);
10084 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10086 /* aklass = array->vtable->klass->element_class */
10087 mono_mb_emit_ldarg (mb, 0);
10088 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10089 mono_mb_emit_byte (mb, CEE_LDIND_I);
10090 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10091 mono_mb_emit_byte (mb, CEE_LDIND_I);
10092 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10093 mono_mb_emit_byte (mb, CEE_LDIND_I);
10094 mono_mb_emit_stloc (mb, aklass);
10096 /* vklass = value->vtable->klass */
10097 mono_mb_emit_ldarg (mb, 2);
10098 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10099 mono_mb_emit_byte (mb, CEE_LDIND_I);
10100 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10101 mono_mb_emit_byte (mb, CEE_LDIND_I);
10102 mono_mb_emit_stloc (mb, vklass);
10104 /* if (vklass->idepth < aklass->idepth) goto failue */
10105 mono_mb_emit_ldloc (mb, vklass);
10106 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10107 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10109 mono_mb_emit_ldloc (mb, aklass);
10110 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10111 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10113 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10115 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10116 mono_mb_emit_ldloc (mb, vklass);
10117 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10118 mono_mb_emit_byte (mb, CEE_LDIND_I);
10120 mono_mb_emit_ldloc (mb, aklass);
10121 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10122 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10123 mono_mb_emit_icon (mb, 1);
10124 mono_mb_emit_byte (mb, CEE_SUB);
10125 mono_mb_emit_icon (mb, sizeof (void*));
10126 mono_mb_emit_byte (mb, CEE_MUL);
10127 mono_mb_emit_byte (mb, CEE_ADD);
10128 mono_mb_emit_byte (mb, CEE_LDIND_I);
10130 mono_mb_emit_ldloc (mb, aklass);
10132 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10134 copy_pos = mono_mb_get_label (mb);
10136 mono_mb_patch_branch (mb, b1);
10137 mono_mb_emit_ldloc (mb, array_slot_addr);
10138 mono_mb_emit_ldarg (mb, 2);
10139 mono_mb_emit_byte (mb, CEE_STIND_REF);
10141 mono_mb_emit_byte (mb, CEE_RET);
10144 mono_mb_patch_branch (mb, b2);
10145 mono_mb_patch_branch (mb, b3);
10147 mono_mb_emit_ldarg (mb, 2);
10148 mono_mb_emit_ldloc (mb, aklass);
10149 mono_mb_emit_icall (mb, mono_object_isinst);
10151 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10152 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10153 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10155 mono_mb_emit_byte (mb, CEE_RET);
10156 ret = mono_mb_create_method (mb, sig, 4);
10164 MonoMethod *method;
10167 /* LOCKING: vars accessed under the marshal lock */
10168 static ArrayElemAddr *elem_addr_cache = NULL;
10169 static int elem_addr_cache_size = 0;
10170 static int elem_addr_cache_next = 0;
10173 * mono_marshal_get_array_address:
10174 * @rank: rank of the array type
10175 * @elem_size: size in bytes of an element of an array.
10177 * Returns a MonoMethd that implements the code to get the address
10178 * of an element in a multi-dimenasional array of @rank dimensions.
10179 * The returned method takes an array as the first argument and then
10180 * @rank indexes for the @rank dimensions.
10183 mono_marshal_get_array_address (int rank, int elem_size)
10186 MonoMethodBuilder *mb;
10187 MonoMethodSignature *sig;
10188 int i, bounds, ind, realidx;
10189 int branch_pos, *branch_positions;
10193 mono_marshal_lock ();
10194 for (i = 0; i < elem_addr_cache_next; ++i) {
10195 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10196 ret = elem_addr_cache [i].method;
10200 mono_marshal_unlock ();
10204 branch_positions = g_new0 (int, rank);
10206 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10208 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10209 sig->ret = &mono_defaults.int_class->byval_arg;
10210 sig->params [0] = &mono_defaults.object_class->byval_arg;
10211 for (i = 0; i < rank; ++i) {
10212 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10215 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10217 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10218 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10219 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10221 /* bounds = array->bounds; */
10222 mono_mb_emit_ldarg (mb, 0);
10223 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10224 mono_mb_emit_byte (mb, CEE_LDIND_I);
10225 mono_mb_emit_stloc (mb, bounds);
10227 /* ind is the overall element index, realidx is the partial index in a single dimension */
10228 /* ind = idx0 - bounds [0].lower_bound */
10229 mono_mb_emit_ldarg (mb, 1);
10230 mono_mb_emit_ldloc (mb, bounds);
10231 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10232 mono_mb_emit_byte (mb, CEE_ADD);
10233 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10234 mono_mb_emit_byte (mb, CEE_SUB);
10235 mono_mb_emit_stloc (mb, ind);
10236 /* if (ind >= bounds [0].length) goto exeception; */
10237 mono_mb_emit_ldloc (mb, ind);
10238 mono_mb_emit_ldloc (mb, bounds);
10239 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10240 mono_mb_emit_byte (mb, CEE_ADD);
10241 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10242 /* note that we use unsigned comparison */
10243 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10245 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10246 * We could also decide to ignore the passed elem_size and get it
10247 * from the array object, to reduce the number of methods we generate:
10248 * the additional cost is 3 memory loads and a non-immediate mul.
10250 for (i = 1; i < rank; ++i) {
10251 /* realidx = idxi - bounds [i].lower_bound */
10252 mono_mb_emit_ldarg (mb, 1 + i);
10253 mono_mb_emit_ldloc (mb, bounds);
10254 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10255 mono_mb_emit_byte (mb, CEE_ADD);
10256 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10257 mono_mb_emit_byte (mb, CEE_SUB);
10258 mono_mb_emit_stloc (mb, realidx);
10259 /* if (realidx >= bounds [i].length) goto exeception; */
10260 mono_mb_emit_ldloc (mb, realidx);
10261 mono_mb_emit_ldloc (mb, bounds);
10262 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10263 mono_mb_emit_byte (mb, CEE_ADD);
10264 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10265 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10266 /* ind = ind * bounds [i].length + realidx */
10267 mono_mb_emit_ldloc (mb, ind);
10268 mono_mb_emit_ldloc (mb, bounds);
10269 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10270 mono_mb_emit_byte (mb, CEE_ADD);
10271 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10272 mono_mb_emit_byte (mb, CEE_MUL);
10273 mono_mb_emit_ldloc (mb, realidx);
10274 mono_mb_emit_byte (mb, CEE_ADD);
10275 mono_mb_emit_stloc (mb, ind);
10278 /* return array->vector + ind * element_size */
10279 mono_mb_emit_ldarg (mb, 0);
10280 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10281 mono_mb_emit_ldloc (mb, ind);
10282 mono_mb_emit_icon (mb, elem_size);
10283 mono_mb_emit_byte (mb, CEE_MUL);
10284 mono_mb_emit_byte (mb, CEE_ADD);
10285 mono_mb_emit_byte (mb, CEE_RET);
10287 /* patch the branches to get here and throw */
10288 for (i = 1; i < rank; ++i) {
10289 mono_mb_patch_branch (mb, branch_positions [i]);
10291 mono_mb_patch_branch (mb, branch_pos);
10292 /* throw exception */
10293 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10295 g_free (branch_positions);
10296 ret = mono_mb_create_method (mb, sig, 4);
10299 /* cache the result */
10301 mono_marshal_lock ();
10302 for (i = 0; i < elem_addr_cache_next; ++i) {
10303 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10304 /* FIXME: free ret */
10305 ret = elem_addr_cache [i].method;
10311 if (elem_addr_cache_next >= elem_addr_cache_size) {
10312 int new_size = elem_addr_cache_size + 4;
10313 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10314 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10315 g_free (elem_addr_cache);
10316 elem_addr_cache = new_array;
10317 elem_addr_cache_size = new_size;
10319 elem_addr_cache [elem_addr_cache_next].rank = rank;
10320 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10321 elem_addr_cache [elem_addr_cache_next].method = ret;
10323 mono_marshal_unlock ();
10328 mono_marshal_alloc (gulong size)
10332 #ifdef PLATFORM_WIN32
10333 res = CoTaskMemAlloc (size);
10335 res = g_try_malloc ((gulong)size);
10337 mono_gc_out_of_memory ((gulong)size);
10343 mono_marshal_free (gpointer ptr)
10345 #ifdef PLATFORM_WIN32
10346 CoTaskMemFree (ptr);
10353 mono_marshal_free_array (gpointer *ptr, int size)
10360 for (i = 0; i < size; i++)
10366 mono_marshal_string_to_utf16 (MonoString *s)
10368 return s ? mono_string_chars (s) : NULL;
10372 mono_marshal_string_to_utf16_copy (MonoString *s)
10377 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10378 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10379 res [mono_string_length (s)] = 0;
10385 * mono_marshal_set_last_error:
10387 * This function is invoked to set the last error value from a P/Invoke call
10388 * which has SetLastError set.
10391 mono_marshal_set_last_error (void)
10394 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10396 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10401 mono_marshal_set_last_error_windows (int error)
10404 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10409 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10410 gpointer dest, gint32 length)
10415 MONO_ARCH_SAVE_REGS;
10417 MONO_CHECK_ARG_NULL (src);
10418 MONO_CHECK_ARG_NULL (dest);
10420 if (src->obj.vtable->klass->rank != 1)
10421 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10422 if (start_index < 0)
10423 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10425 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10426 if (start_index + length > mono_array_length (src))
10427 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10429 element_size = mono_array_element_size (src->obj.vtable->klass);
10431 /* no references should be involved */
10432 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10434 memcpy (dest, source_addr, length * element_size);
10438 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10439 MonoArray *dest, gint32 length)
10444 MONO_ARCH_SAVE_REGS;
10446 MONO_CHECK_ARG_NULL (src);
10447 MONO_CHECK_ARG_NULL (dest);
10449 if (dest->obj.vtable->klass->rank != 1)
10450 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10451 if (start_index < 0)
10452 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10454 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10455 if (start_index + length > mono_array_length (dest))
10456 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10458 element_size = mono_array_element_size (dest->obj.vtable->klass);
10460 /* no references should be involved */
10461 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10463 memcpy (dest_addr, src, length * element_size);
10466 #if NO_UNALIGNED_ACCESS
10467 #define RETURN_UNALIGNED(type, addr) \
10470 memcpy(&val, p + offset, sizeof(val)); \
10473 #define WRITE_UNALIGNED(type, addr, val) \
10474 memcpy(addr, &val, sizeof(type))
10476 #define RETURN_UNALIGNED(type, addr) \
10477 return *(type*)(p + offset);
10478 #define WRITE_UNALIGNED(type, addr, val) \
10479 (*(type *)(addr) = (val))
10483 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10487 MONO_ARCH_SAVE_REGS;
10489 RETURN_UNALIGNED(gpointer, p + offset);
10493 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10497 MONO_ARCH_SAVE_REGS;
10499 return *(unsigned char*)(p + offset);
10503 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10507 MONO_ARCH_SAVE_REGS;
10509 RETURN_UNALIGNED(gint16, p + offset);
10513 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10517 MONO_ARCH_SAVE_REGS;
10519 RETURN_UNALIGNED(gint32, p + offset);
10523 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10527 MONO_ARCH_SAVE_REGS;
10529 RETURN_UNALIGNED(gint64, p + offset);
10533 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10537 MONO_ARCH_SAVE_REGS;
10539 *(unsigned char*)(p + offset) = val;
10543 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10547 MONO_ARCH_SAVE_REGS;
10549 WRITE_UNALIGNED(gpointer, p + offset, val);
10553 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10557 MONO_ARCH_SAVE_REGS;
10559 WRITE_UNALIGNED(gint16, p + offset, val);
10563 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10567 MONO_ARCH_SAVE_REGS;
10569 WRITE_UNALIGNED(gint32, p + offset, val);
10573 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10577 MONO_ARCH_SAVE_REGS;
10579 WRITE_UNALIGNED(gint64, p + offset, val);
10583 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10585 MONO_ARCH_SAVE_REGS;
10590 return mono_string_new (mono_domain_get (), ptr);
10594 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10596 MONO_ARCH_SAVE_REGS;
10599 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10600 g_assert_not_reached ();
10603 return mono_string_new_len (mono_domain_get (), ptr, len);
10608 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10610 MonoDomain *domain = mono_domain_get ();
10614 MONO_ARCH_SAVE_REGS;
10622 return mono_string_new_utf16 (domain, ptr, len);
10626 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10628 MonoDomain *domain = mono_domain_get ();
10630 MONO_ARCH_SAVE_REGS;
10633 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10634 g_assert_not_reached ();
10637 return mono_string_new_utf16 (domain, ptr, len);
10642 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10644 MONO_ARCH_SAVE_REGS;
10646 return mono_string_from_bstr(ptr);
10650 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10652 MONO_ARCH_SAVE_REGS;
10654 return mono_string_to_bstr(ptr);
10659 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10660 int (STDCALL *AddRef)(gpointer pUnk);
10661 int (STDCALL *Release)(gpointer pUnk);
10665 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10667 MONO_ARCH_SAVE_REGS;
10669 mono_free_bstr (ptr);
10673 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10676 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10680 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10683 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10687 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10690 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10693 #ifndef DISABLE_COM
10695 #define MONO_S_OK 0x00000000L
10696 #define MONO_E_NOINTERFACE 0x80004002L
10697 #define MONO_E_NOTIMPL 0x80004001L
10699 static gboolean cominterop_can_support_dispatch (MonoClass* klass)
10701 if (!(klass->flags & TYPE_ATTRIBUTE_PUBLIC) )
10704 if (!cominterop_com_visible (klass))
10711 cominterop_get_idispatch_for_object (MonoObject* object)
10716 if (cominterop_object_is_rcw (object)) {
10717 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10718 mono_defaults.idispatch_class, TRUE);
10721 MonoClass* klass = mono_object_class (object);
10722 if (!cominterop_can_support_dispatch (klass) )
10723 cominterop_raise_hr_exception (MONO_E_NOINTERFACE);
10724 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10731 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10733 #ifndef DISABLE_COM
10737 mono_init_com_types ();
10739 if (cominterop_object_is_rcw (object)) {
10740 MonoClass *klass = NULL;
10741 MonoRealProxy* real_proxy = NULL;
10744 klass = mono_object_class (object);
10745 if (klass != mono_defaults.transparent_proxy_class) {
10746 g_assert_not_reached ();
10750 real_proxy = ((MonoTransparentProxy*)object)->rp;
10752 g_assert_not_reached ();
10756 klass = mono_object_class (real_proxy);
10757 if (klass != mono_defaults.com_interop_proxy_class) {
10758 g_assert_not_reached ();
10762 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10763 g_assert_not_reached ();
10767 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10770 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10773 g_assert_not_reached ();
10778 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10780 #ifndef DISABLE_COM
10781 MonoObject* object = NULL;
10786 /* see if it is a CCW */
10787 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10791 g_assert_not_reached ();
10796 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10798 #ifndef DISABLE_COM
10799 mono_init_com_types ();
10801 return cominterop_get_idispatch_for_object (object);
10803 g_assert_not_reached ();
10808 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10810 #ifndef DISABLE_COM
10811 MonoClass* klass = NULL;
10814 g_assert (type->type);
10815 klass = mono_type_get_class (type->type);
10817 itf = cominterop_get_ccw (object, klass);
10821 g_assert_not_reached ();
10827 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10829 #ifndef DISABLE_COM
10830 return (MonoBoolean)cominterop_object_is_rcw (object);
10832 g_assert_not_reached ();
10837 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10839 #ifndef DISABLE_COM
10840 MonoComInteropProxy* proxy = NULL;
10841 gint32 ref_count = 0;
10844 g_assert (cominterop_object_is_rcw (object));
10846 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10849 ref_count = InterlockedDecrement (&proxy->ref_count);
10850 g_assert (ref_count >= 0);
10852 if (ref_count == 0)
10853 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10857 g_assert_not_reached ();
10862 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10864 MONO_ARCH_SAVE_REGS;
10866 #ifndef DISABLE_COM
10867 return cominterop_get_com_slot_for_method (m->method);
10869 g_assert_not_reached ();
10874 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10876 MONO_ARCH_SAVE_REGS;
10878 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10882 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10888 MONO_ARCH_SAVE_REGS;
10890 MONO_CHECK_ARG_NULL (rtype);
10892 type = rtype->type;
10893 klass = mono_class_from_mono_type (type);
10894 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10896 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10898 MonoException *exc;
10900 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10901 exc = mono_get_exception_argument ("t", msg);
10903 mono_raise_exception (exc);
10907 return mono_class_native_size (klass, NULL);
10911 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10913 MonoMethod *method;
10916 MONO_ARCH_SAVE_REGS;
10918 MONO_CHECK_ARG_NULL (obj);
10919 MONO_CHECK_ARG_NULL (dst);
10921 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10925 pa [2] = &delete_old;
10927 mono_runtime_invoke (method, NULL, pa, NULL);
10931 ptr_to_structure (gpointer src, MonoObject *dst)
10933 MonoMethod *method;
10936 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10941 mono_runtime_invoke (method, NULL, pa, NULL);
10945 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10949 MONO_ARCH_SAVE_REGS;
10951 MONO_CHECK_ARG_NULL (src);
10952 MONO_CHECK_ARG_NULL (dst);
10954 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10956 if (t->type == MONO_TYPE_VALUETYPE) {
10957 MonoException *exc;
10960 tmp = g_strdup_printf ("Destination is a boxed value type.");
10961 exc = mono_get_exception_argument ("dst", tmp);
10964 mono_raise_exception (exc);
10968 ptr_to_structure (src, dst);
10972 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10974 MonoDomain *domain = mono_domain_get ();
10977 MONO_ARCH_SAVE_REGS;
10979 MONO_CHECK_ARG_NULL (src);
10980 MONO_CHECK_ARG_NULL (type);
10982 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10984 ptr_to_structure (src, res);
10990 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10992 MonoMarshalType *info;
10995 int match_index = -1;
10997 MONO_ARCH_SAVE_REGS;
10999 MONO_CHECK_ARG_NULL (type);
11000 MONO_CHECK_ARG_NULL (field_name);
11002 fname = mono_string_to_utf8 (field_name);
11003 klass = mono_class_from_mono_type (type->type);
11005 while (klass && match_index == -1) {
11006 MonoClassField* field;
11008 gpointer iter = NULL;
11009 while ((field = mono_class_get_fields (klass, &iter))) {
11010 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11012 if (!strcmp (fname, mono_field_get_name (field))) {
11019 if (match_index == -1)
11020 klass = klass->parent;
11025 if(match_index == -1) {
11026 MonoException* exc;
11029 /* Get back original class instance */
11030 klass = mono_class_from_mono_type (type->type);
11032 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11033 exc = mono_get_exception_argument ("fieldName", tmp);
11036 mono_raise_exception ((MonoException*)exc);
11039 info = mono_marshal_load_type_info (klass);
11040 return info->fields [match_index].offset;
11044 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11046 #ifdef PLATFORM_WIN32
11049 tres = mono_string_to_utf8 (string);
11053 len = strlen (tres) + 1;
11054 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11055 memcpy (ret, tres, len);
11060 return mono_string_to_utf8 (string);
11065 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11067 MONO_ARCH_SAVE_REGS;
11069 if (string == NULL)
11072 #ifdef PLATFORM_WIN32
11073 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11074 ((mono_string_length (string) + 1) * 2);
11076 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11078 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11079 res [mono_string_length (string)] = 0;
11085 mono_struct_delete_old (MonoClass *klass, char *ptr)
11087 MonoMarshalType *info;
11090 info = mono_marshal_load_type_info (klass);
11092 for (i = 0; i < info->num_fields; i++) {
11093 MonoMarshalNative ntype;
11094 MonoMarshalConv conv;
11095 MonoType *ftype = info->fields [i].field->type;
11098 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11101 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11102 klass->unicode, &conv);
11104 cpos = ptr + info->fields [i].offset;
11107 case MONO_MARSHAL_CONV_NONE:
11108 if (MONO_TYPE_ISSTRUCT (ftype)) {
11109 mono_struct_delete_old (ftype->data.klass, cpos);
11113 case MONO_MARSHAL_CONV_STR_LPWSTR:
11114 /* We assume this field points inside a MonoString */
11116 case MONO_MARSHAL_CONV_STR_LPTSTR:
11117 #ifdef PLATFORM_WIN32
11118 /* We assume this field points inside a MonoString
11122 case MONO_MARSHAL_CONV_STR_LPSTR:
11123 case MONO_MARSHAL_CONV_STR_BSTR:
11124 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11125 case MONO_MARSHAL_CONV_STR_TBSTR:
11126 mono_marshal_free (*(gpointer *)cpos);
11136 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11140 MONO_ARCH_SAVE_REGS;
11142 MONO_CHECK_ARG_NULL (src);
11143 MONO_CHECK_ARG_NULL (type);
11145 klass = mono_class_from_mono_type (type->type);
11147 mono_struct_delete_old (klass, (char *)src);
11151 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11155 MONO_ARCH_SAVE_REGS;
11157 if ((gulong)size == 0)
11158 /* This returns a valid pointer for size 0 on MS.NET */
11161 #ifdef PLATFORM_WIN32
11162 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11164 res = g_try_malloc ((gulong)size);
11167 mono_gc_out_of_memory ((gulong)size);
11173 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11178 mono_gc_out_of_memory ((gulong)size);
11182 #ifdef PLATFORM_WIN32
11183 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11185 res = g_try_realloc (ptr, (gulong)size);
11188 mono_gc_out_of_memory ((gulong)size);
11194 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11196 MONO_ARCH_SAVE_REGS;
11198 #ifdef PLATFORM_WIN32
11206 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11208 MONO_ARCH_SAVE_REGS;
11210 #ifdef PLATFORM_WIN32
11211 return CoTaskMemAlloc (size);
11213 return g_try_malloc ((gulong)size);
11218 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11220 MONO_ARCH_SAVE_REGS;
11222 #ifdef PLATFORM_WIN32
11223 CoTaskMemFree (ptr);
11230 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11232 MONO_ARCH_SAVE_REGS;
11234 #ifdef PLATFORM_WIN32
11235 return CoTaskMemRealloc (ptr, size);
11237 return g_try_realloc (ptr, (gulong)size);
11242 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11244 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11248 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11250 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
11253 /* Only used for COM RCWs */
11255 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
11258 MonoDomain *domain;
11261 MONO_ARCH_SAVE_REGS;
11263 domain = mono_object_domain (type);
11264 klass = mono_class_from_mono_type (type->type);
11266 /* call mono_object_new_alloc_specific instead of mono_object_new
11267 * because we want to actually create object. mono_object_new checks
11268 * to see if type is import and creates transparent proxy. this method
11269 * is called by the corresponding real proxy to create the real RCW.
11270 * Constructor does not need to be called. Will be called later.
11272 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
11277 cominterop_rcw_interface_finalizer (gpointer key, gpointer value, gpointer user_data)
11279 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
11284 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
11287 if (obj->itf_hash) {
11288 guint32 gchandle = 0;
11289 mono_cominterop_lock ();
11290 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
11292 mono_gchandle_free (gchandle);
11293 g_hash_table_remove (rcw_hash, obj->iunknown);
11296 g_hash_table_foreach_remove (obj->itf_hash, cominterop_rcw_interface_finalizer, NULL);
11297 g_hash_table_destroy (obj->itf_hash);
11298 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
11299 obj->itf_hash = obj->iunknown = NULL;
11300 mono_cominterop_unlock ();
11304 #ifndef DISABLE_COM
11307 cominterop_rcw_finalizer (gpointer key, gpointer value, gpointer user_data)
11309 guint32 gchandle = 0;
11311 gchandle = GPOINTER_TO_UINT (value);
11313 MonoComInteropProxy* proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11316 if (proxy->com_object->itf_hash) {
11317 g_hash_table_foreach_remove (proxy->com_object->itf_hash, cominterop_rcw_interface_finalizer, NULL);
11318 g_hash_table_destroy (proxy->com_object->itf_hash);
11320 if (proxy->com_object->iunknown)
11321 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (proxy->com_object->iunknown);
11322 proxy->com_object->itf_hash = proxy->com_object->iunknown = NULL;
11325 mono_gchandle_free (gchandle);
11332 cominterop_release_all_rcws ()
11337 mono_cominterop_lock ();
11339 g_hash_table_foreach_remove (rcw_hash, cominterop_rcw_finalizer, NULL);
11340 g_hash_table_destroy (rcw_hash);
11343 mono_cominterop_unlock ();
11349 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
11351 #ifndef DISABLE_COM
11352 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
11354 g_assert_not_reached ();
11359 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
11361 #ifndef DISABLE_COM
11362 guint32 gchandle = 0;
11364 mono_cominterop_lock ();
11365 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11366 mono_cominterop_unlock ();
11369 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
11371 mono_cominterop_lock ();
11372 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
11373 mono_cominterop_unlock ();
11375 g_assert_not_reached ();
11379 MonoComInteropProxy*
11380 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
11382 #ifndef DISABLE_COM
11383 MonoComInteropProxy* proxy = NULL;
11384 guint32 gchandle = 0;
11386 mono_cominterop_lock ();
11388 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
11389 mono_cominterop_unlock ();
11391 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11392 /* proxy is null means we need to free up old RCW */
11394 mono_gchandle_free (gchandle);
11395 g_hash_table_remove (rcw_hash, pUnk);
11400 g_assert_not_reached ();
11405 * mono_marshal_is_loading_type_info:
11407 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11411 mono_marshal_is_loading_type_info (MonoClass *klass)
11413 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
11415 return g_slist_find (loads_list, klass) != NULL;
11419 * mono_marshal_load_type_info:
11421 * Initialize klass->marshal_info using information from metadata. This function can
11422 * recursively call itself, and the caller is responsible to avoid that by calling
11423 * mono_marshal_is_loading_type_info () beforehand.
11425 * LOCKING: Acquires the loader lock.
11428 mono_marshal_load_type_info (MonoClass* klass)
11431 guint32 native_size = 0, min_align = 1;
11432 MonoMarshalType *info;
11433 MonoClassField* field;
11436 GSList *loads_list;
11438 g_assert (klass != NULL);
11440 if (klass->marshal_info)
11441 return klass->marshal_info;
11443 if (!klass->inited)
11444 mono_class_init (klass);
11446 mono_loader_lock ();
11448 if (klass->marshal_info) {
11449 mono_loader_unlock ();
11450 return klass->marshal_info;
11454 * This function can recursively call itself, so we keep the list of classes which are
11455 * under initialization in a TLS list.
11457 g_assert (!mono_marshal_is_loading_type_info (klass));
11458 loads_list = TlsGetValue (load_type_info_tls_id);
11459 loads_list = g_slist_prepend (loads_list, klass);
11460 TlsSetValue (load_type_info_tls_id, loads_list);
11463 while ((field = mono_class_get_fields (klass, &iter))) {
11464 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11466 if (mono_field_is_deleted (field))
11471 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11473 /* The mempool is protected by the loader lock */
11474 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11475 info->num_fields = count;
11477 /* Try to find a size for this type in metadata */
11478 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11480 if (klass->parent) {
11481 int parent_size = mono_class_native_size (klass->parent, NULL);
11483 /* Add parent size to real size */
11484 native_size += parent_size;
11485 info->native_size = parent_size;
11490 while ((field = mono_class_get_fields (klass, &iter))) {
11494 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11497 if (mono_field_is_deleted (field))
11499 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11500 mono_metadata_field_info_with_mempool (klass->image->mempool, klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11501 NULL, NULL, &info->fields [j].mspec);
11503 info->fields [j].field = field;
11505 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11506 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11507 /* This field is a hack inserted by MCS to empty structures */
11512 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11513 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11514 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11515 &align, TRUE, klass->unicode);
11516 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11517 min_align = MAX (align, min_align);
11518 info->fields [j].offset = info->native_size;
11519 info->fields [j].offset += align - 1;
11520 info->fields [j].offset &= ~(align - 1);
11521 info->native_size = info->fields [j].offset + size;
11523 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11524 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11525 &align, TRUE, klass->unicode);
11526 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11527 min_align = MAX (align, min_align);
11528 info->fields [j].offset = field->offset - sizeof (MonoObject);
11529 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11535 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11536 info->native_size = MAX (native_size, info->native_size);
11539 if (info->native_size & (min_align - 1)) {
11540 info->native_size += min_align - 1;
11541 info->native_size &= ~(min_align - 1);
11544 info->min_align = min_align;
11546 /* Update the class's blittable info, if the layouts don't match */
11547 if (info->native_size != mono_class_value_size (klass, NULL))
11548 klass->blittable = FALSE;
11550 /* If this is an array type, ensure that we have element info */
11551 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11552 mono_marshal_load_type_info (klass->element_class);
11555 loads_list = TlsGetValue (load_type_info_tls_id);
11556 loads_list = g_slist_remove (loads_list, klass);
11557 TlsSetValue (load_type_info_tls_id, loads_list);
11559 /*We do double-checking locking on marshal_info */
11560 mono_memory_barrier ();
11562 klass->marshal_info = info;
11564 mono_loader_unlock ();
11566 return klass->marshal_info;
11570 * mono_class_native_size:
11573 * Returns: the native size of an object instance (when marshaled
11574 * to unmanaged code)
11577 mono_class_native_size (MonoClass *klass, guint32 *align)
11579 if (!klass->marshal_info) {
11580 if (mono_marshal_is_loading_type_info (klass)) {
11585 mono_marshal_load_type_info (klass);
11590 *align = klass->marshal_info->min_align;
11592 return klass->marshal_info->native_size;
11595 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11596 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11597 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11598 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11601 * mono_type_native_stack_size:
11602 * @t: the type to return the size it uses on the stack
11604 * Returns: the number of bytes required to hold an instance of this
11605 * type on the native stack
11608 mono_type_native_stack_size (MonoType *t, guint32 *align)
11612 g_assert (t != NULL);
11618 *align = sizeof (gpointer);
11619 return sizeof (gpointer);
11623 case MONO_TYPE_BOOLEAN:
11624 case MONO_TYPE_CHAR:
11635 case MONO_TYPE_STRING:
11636 case MONO_TYPE_OBJECT:
11637 case MONO_TYPE_CLASS:
11638 case MONO_TYPE_SZARRAY:
11639 case MONO_TYPE_PTR:
11640 case MONO_TYPE_FNPTR:
11641 case MONO_TYPE_ARRAY:
11642 *align = sizeof (gpointer);
11643 return sizeof (gpointer);
11648 *align = ALIGNMENT (gdouble);
11652 *align = ALIGNMENT (glong);
11654 case MONO_TYPE_GENERICINST:
11655 if (!mono_type_generic_inst_is_valuetype (t)) {
11656 *align = sizeof (gpointer);
11657 return sizeof (gpointer);
11660 case MONO_TYPE_TYPEDBYREF:
11661 case MONO_TYPE_VALUETYPE: {
11663 MonoClass *klass = mono_class_from_mono_type (t);
11665 if (klass->enumtype)
11666 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11668 size = mono_class_native_size (klass, align);
11669 *align = *align + 3;
11679 g_error ("type 0x%02x unknown", t->type);
11685 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11686 gboolean as_field, gboolean unicode)
11688 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11691 switch (native_type) {
11692 case MONO_NATIVE_BOOLEAN:
11695 case MONO_NATIVE_I1:
11696 case MONO_NATIVE_U1:
11699 case MONO_NATIVE_I2:
11700 case MONO_NATIVE_U2:
11701 case MONO_NATIVE_VARIANTBOOL:
11704 case MONO_NATIVE_I4:
11705 case MONO_NATIVE_U4:
11706 case MONO_NATIVE_ERROR:
11709 case MONO_NATIVE_I8:
11710 case MONO_NATIVE_U8:
11711 *align = ALIGNMENT(guint64);
11713 case MONO_NATIVE_R4:
11716 case MONO_NATIVE_R8:
11717 *align = ALIGNMENT(double);
11719 case MONO_NATIVE_INT:
11720 case MONO_NATIVE_UINT:
11721 case MONO_NATIVE_LPSTR:
11722 case MONO_NATIVE_LPWSTR:
11723 case MONO_NATIVE_LPTSTR:
11724 case MONO_NATIVE_BSTR:
11725 case MONO_NATIVE_ANSIBSTR:
11726 case MONO_NATIVE_TBSTR:
11727 case MONO_NATIVE_LPARRAY:
11728 case MONO_NATIVE_SAFEARRAY:
11729 case MONO_NATIVE_IUNKNOWN:
11730 case MONO_NATIVE_IDISPATCH:
11731 case MONO_NATIVE_INTERFACE:
11732 case MONO_NATIVE_ASANY:
11733 case MONO_NATIVE_FUNC:
11734 case MONO_NATIVE_LPSTRUCT:
11735 *align = ALIGNMENT(gpointer);
11736 return sizeof (gpointer);
11737 case MONO_NATIVE_STRUCT:
11738 klass = mono_class_from_mono_type (type);
11739 if (klass == mono_defaults.object_class &&
11740 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11744 return mono_class_native_size (klass, align);
11745 case MONO_NATIVE_BYVALTSTR: {
11746 int esize = unicode ? 2: 1;
11749 return mspec->data.array_data.num_elem * esize;
11751 case MONO_NATIVE_BYVALARRAY: {
11752 // FIXME: Have to consider ArraySubType
11754 klass = mono_class_from_mono_type (type);
11755 if (klass->element_class == mono_defaults.char_class) {
11756 esize = unicode ? 2 : 1;
11759 esize = mono_class_native_size (klass->element_class, align);
11762 return mspec->data.array_data.num_elem * esize;
11764 case MONO_NATIVE_CUSTOM:
11765 *align = sizeof (gpointer);
11766 return sizeof (gpointer);
11768 case MONO_NATIVE_CURRENCY:
11769 case MONO_NATIVE_VBBYREFSTR:
11771 g_error ("native type %02x not implemented", native_type);
11774 g_assert_not_reached ();
11779 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11787 t = &o->vtable->klass->byval_arg;
11791 case MONO_TYPE_PTR:
11794 case MONO_TYPE_BOOLEAN:
11797 case MONO_TYPE_CHAR:
11802 return mono_object_unbox (o);
11804 case MONO_TYPE_STRING:
11805 switch (string_encoding) {
11806 case MONO_NATIVE_LPWSTR:
11807 return mono_string_to_utf16 ((MonoString*)o);
11809 case MONO_NATIVE_LPSTR:
11810 return mono_string_to_lpstr ((MonoString*)o);
11813 g_warning ("marshaling conversion %d not implemented", string_encoding);
11814 g_assert_not_reached ();
11817 case MONO_TYPE_CLASS:
11818 case MONO_TYPE_VALUETYPE: {
11819 MonoMethod *method;
11822 MonoBoolean delete_old = FALSE;
11824 klass = t->data.klass;
11826 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11829 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11830 klass->blittable || klass->enumtype))
11831 return mono_object_unbox (o);
11833 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11835 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11836 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11840 pa [2] = &delete_old;
11842 mono_runtime_invoke (method, NULL, pa, NULL);
11849 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11855 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11863 t = &o->vtable->klass->byval_arg;
11865 case MONO_TYPE_STRING:
11866 switch (string_encoding) {
11867 case MONO_NATIVE_LPWSTR:
11868 case MONO_NATIVE_LPSTR:
11869 mono_marshal_free (ptr);
11872 g_warning ("marshaling conversion %d not implemented", string_encoding);
11873 g_assert_not_reached ();
11876 case MONO_TYPE_CLASS:
11877 case MONO_TYPE_VALUETYPE: {
11878 klass = t->data.klass;
11880 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11881 klass->blittable || klass->enumtype))
11884 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11885 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11891 mono_runtime_invoke (method, NULL, pa, NULL);
11894 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11895 mono_struct_delete_old (klass, ptr);
11898 mono_marshal_free (ptr);
11907 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11909 MonoMethodSignature *sig, *csig;
11910 MonoMethodBuilder *mb;
11914 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11915 mb->method->slot = -1;
11917 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11918 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11920 sig = mono_method_signature (method);
11921 csig = signature_dup (method->klass->image, sig);
11922 csig->generic_param_count = 0;
11924 mono_mb_emit_ldarg (mb, 0);
11925 for (i = 0; i < csig->param_count; i++)
11926 mono_mb_emit_ldarg (mb, i + 1);
11927 mono_mb_emit_managed_call (mb, method, NULL);
11928 mono_mb_emit_byte (mb, CEE_RET);
11930 /* We can corlib internal methods */
11931 mb->skip_visibility = TRUE;
11933 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11941 * The mono_win32_compat_* functions are implementations of inline
11942 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11943 * although not exported by kernel32.
11945 * We map the appropiate kernel32 entries to these functions using
11946 * dllmaps declared in the global etc/mono/config.
11950 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11952 if (!dest || !source)
11955 memcpy (dest, source, length);
11959 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11961 memset (dest, fill, length);
11965 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11967 if (!dest || !source)
11970 memmove (dest, source, length);
11974 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11976 memset (dest, 0, length);
11979 /* Put COM Interop related stuff here */
11981 #ifndef DISABLE_COM
11984 * cominterop_get_ccw_object:
11985 * @ccw_entry: a pointer to the CCWEntry
11986 * @verify: verify ccw_entry is in fact a ccw
11988 * Returns: the corresponding object for the CCW
11991 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11993 MonoCCW *ccw = NULL;
11995 /* no CCW's exist yet */
11996 if (!ccw_interface_hash)
12000 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
12003 ccw = ccw_entry->ccw;
12007 return mono_gchandle_get_target (ccw->gc_handle);
12013 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
12015 MonoMethodSignature *sig, *csig;
12016 sig = mono_method_signature (method);
12017 /* we copy the signature, so that we can modify it */
12018 /* FIXME: which to use? */
12019 csig = signature_dup (method->klass->image, sig);
12020 /* csig = mono_metadata_signature_dup (sig); */
12022 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
12023 #ifdef PLATFORM_WIN32
12024 csig->call_convention = MONO_CALL_STDCALL;
12026 csig->call_convention = MONO_CALL_C;
12031 m->image = method->klass->image;
12039 * cominterop_get_ccw:
12040 * @object: a pointer to the object
12041 * @itf: interface type needed
12043 * Returns: a value indicating if the object is a
12044 * Runtime Callable Wrapper (RCW) for a COM object
12047 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
12050 MonoCCW *ccw = NULL;
12051 MonoCCWInterface* ccw_entry = NULL;
12052 gpointer *vtable = NULL;
12053 static gpointer iunknown[3] = {NULL, NULL, NULL};
12054 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
12055 MonoClass* iface = NULL;
12056 MonoClass* klass = NULL;
12057 EmitMarshalContext m;
12058 int start_slot = 3;
12059 int method_count = 0;
12060 GList *ccw_list, *ccw_list_item;
12061 MonoCustomAttrInfo *cinfo = NULL;
12066 klass = mono_object_get_class (object);
12069 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12070 if (!ccw_interface_hash)
12071 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12073 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12075 ccw_list_item = ccw_list;
12076 while (ccw_list_item) {
12077 MonoCCW* ccw_iter = ccw_list_item->data;
12078 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
12082 ccw_list_item = g_list_next(ccw_list_item);
12085 if (!iunknown [0]) {
12086 iunknown [0] = cominterop_ccw_queryinterface;
12087 iunknown [1] = cominterop_ccw_addref;
12088 iunknown [2] = cominterop_ccw_release;
12091 if (!idispatch [0]) {
12092 idispatch [0] = cominterop_ccw_get_type_info_count;
12093 idispatch [1] = cominterop_ccw_get_type_info;
12094 idispatch [2] = cominterop_ccw_get_ids_of_names;
12095 idispatch [3] = cominterop_ccw_invoke;
12099 ccw = g_new0 (MonoCCW, 1);
12100 #ifdef PLATFORM_WIN32
12101 ccw->free_marshaler = 0;
12103 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
12104 ccw->ref_count = 0;
12105 /* just alloc a weak handle until we are addref'd*/
12106 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
12109 ccw_list = g_list_alloc ();
12110 ccw_list->data = ccw;
12113 ccw_list = g_list_append (ccw_list, ccw);
12114 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
12115 /* register for finalization to clean up ccw */
12116 mono_object_register_finalizer (object);
12119 cinfo = mono_custom_attrs_from_class (itf);
12121 static MonoClass* coclass_attribute = NULL;
12122 if (!coclass_attribute)
12123 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
12124 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
12125 g_assert(itf->interface_count && itf->interfaces[0]);
12126 itf = itf->interfaces[0];
12128 if (!cinfo->cached)
12129 mono_custom_attrs_free (cinfo);
12133 if (iface == mono_defaults.iunknown_class) {
12136 else if (iface == mono_defaults.idispatch_class) {
12140 method_count += iface->method.count;
12141 start_slot = cominterop_get_com_slot_begin (iface);
12145 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
12148 int vtable_index = method_count-1+start_slot;
12149 mono_loader_lock ();
12150 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
12151 mono_loader_unlock ();
12152 memcpy (vtable, iunknown, sizeof (iunknown));
12153 if (start_slot == 7)
12154 memcpy (vtable+3, idispatch, sizeof (idispatch));
12157 for (i = iface->method.count-1; i >= 0;i--) {
12158 int param_index = 0;
12159 MonoMethodBuilder *mb;
12160 MonoMarshalSpec ** mspecs;
12161 MonoMethod *wrapper_method, *adjust_method;
12162 MonoMethod *method = iface->methods [i];
12163 MonoMethodSignature* sig_adjusted;
12164 MonoMethodSignature* sig = mono_method_signature (method);
12165 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12168 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12169 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
12170 sig_adjusted = mono_method_signature (adjust_method);
12172 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
12173 mono_method_get_marshal_info (method, mspecs);
12176 /* move managed args up one */
12177 for (param_index = sig->param_count; param_index >= 1; param_index--) {
12178 int mspec_index = param_index+1;
12179 mspecs [mspec_index] = mspecs [param_index];
12181 if (mspecs[mspec_index] == NULL) {
12182 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
12183 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12184 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
12186 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
12187 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12188 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
12190 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
12191 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
12192 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
12197 /* first arg is IntPtr for interface */
12200 /* move return spec to last param */
12201 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
12202 if (mspecs [0] == NULL) {
12203 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
12204 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12205 mspecs[0]->native = MONO_NATIVE_STRUCT;
12207 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
12208 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12209 mspecs[0]->native = MONO_NATIVE_BSTR;
12211 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
12212 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
12213 mspecs[0]->native = MONO_NATIVE_INTERFACE;
12217 mspecs [sig_adjusted->param_count] = mspecs [0];
12221 /* skip visiblity since we call internal methods */
12222 mb->skip_visibility = TRUE;
12224 cominterop_setup_marshal_context (&m, adjust_method);
12226 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
12227 mono_loader_lock ();
12228 mono_marshal_lock ();
12229 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
12230 mono_marshal_unlock ();
12231 mono_loader_unlock ();
12233 vtable [vtable_index--] = mono_compile_method (wrapper_method);
12236 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
12237 if (mspecs [param_index])
12238 mono_metadata_free_marshal_spec (mspecs [param_index]);
12242 ccw_entry = g_new0 (MonoCCWInterface, 1);
12243 ccw_entry->ccw = ccw;
12244 ccw_entry->vtable = vtable;
12245 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
12246 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
12253 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
12261 * mono_marshal_free_ccw:
12262 * @object: the mono object
12264 * Returns: whether the object had a CCW
12267 mono_marshal_free_ccw (MonoObject* object)
12269 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
12270 /* no ccw's were created */
12271 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
12274 /* need to cache orig list address to remove from hash_table if empty */
12275 mono_cominterop_lock ();
12276 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12277 mono_cominterop_unlock ();
12282 ccw_list_item = ccw_list;
12283 while (ccw_list_item) {
12284 MonoCCW* ccw_iter = ccw_list_item->data;
12285 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
12287 /* Looks like the GC NULLs the weakref handle target before running the
12288 * finalizer. So if we get a NULL target, destroy the CCW as well. */
12289 if (!handle_target || handle_target == object) {
12290 /* remove all interfaces */
12291 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
12292 g_hash_table_destroy (ccw_iter->vtable_hash);
12294 /* get next before we delete */
12295 ccw_list_item = g_list_next(ccw_list_item);
12297 /* remove ccw from list */
12298 ccw_list = g_list_remove (ccw_list, ccw_iter);
12302 ccw_list_item = g_list_next(ccw_list_item);
12305 /* if list is empty remove original address from hash */
12306 if (g_list_length (ccw_list) == 0)
12307 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
12314 * cominterop_get_managed_wrapper_adjusted:
12315 * @method: managed COM Interop method
12317 * Returns: the generated method to call with signature matching
12318 * the unmanaged COM Method signature
12320 static MonoMethod *
12321 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
12323 static MonoMethod *get_hr_for_exception = NULL;
12324 MonoMethod *res = NULL;
12325 MonoMethodBuilder *mb;
12326 MonoMarshalSpec **mspecs;
12327 MonoMethodSignature *sig, *sig_native;
12328 MonoExceptionClause *main_clause = NULL;
12332 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
12334 if (!get_hr_for_exception)
12335 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
12337 sig = mono_method_signature (method);
12339 /* create unmanaged wrapper */
12340 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
12342 sig_native = cominterop_method_signature (method);
12344 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
12346 mono_method_get_marshal_info (method, mspecs);
12348 /* move managed args up one */
12349 for (i = sig->param_count; i >= 1; i--)
12350 mspecs [i+1] = mspecs [i];
12352 /* first arg is IntPtr for interface */
12355 /* move return spec to last param */
12356 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12357 mspecs [sig_native->param_count] = mspecs [0];
12361 if (!preserve_sig) {
12362 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
12365 main_clause = g_new0 (MonoExceptionClause, 1);
12366 main_clause->try_offset = mono_mb_get_label (mb);
12369 /* load last param to store result if not preserve_sig and not void */
12370 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
12371 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
12373 /* the CCW -> object conversion */
12374 mono_mb_emit_ldarg (mb, 0);
12375 mono_mb_emit_icon (mb, FALSE);
12376 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
12378 for (i = 0; i < sig->param_count; i++)
12379 mono_mb_emit_ldarg (mb, i+1);
12381 mono_mb_emit_managed_call (mb, method, NULL);
12383 if (!preserve_sig) {
12384 /* store result if not preserve_sig and we have one */
12385 if (!MONO_TYPE_IS_VOID (sig->ret))
12386 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
12388 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12390 /* Main exception catch */
12391 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12392 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
12393 main_clause->data.catch_class = mono_defaults.object_class;
12396 main_clause->handler_offset = mono_mb_get_label (mb);
12397 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
12398 mono_mb_emit_stloc (mb, hr);
12399 mono_mb_emit_branch (mb, CEE_LEAVE);
12400 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
12403 mono_mb_set_clauses (mb, 1, main_clause);
12405 mono_mb_patch_branch (mb, pos_leave);
12407 mono_mb_emit_ldloc (mb, hr);
12410 mono_mb_emit_byte (mb, CEE_RET);
12412 mono_loader_lock ();
12413 mono_marshal_lock ();
12414 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
12415 mono_marshal_unlock ();
12416 mono_loader_unlock ();
12420 for (i = sig_native->param_count; i >= 0; i--)
12422 mono_metadata_free_marshal_spec (mspecs [i]);
12429 * cominterop_mono_string_to_guid:
12431 * Converts the standard string representation of a GUID
12432 * to a 16 byte Microsoft GUID.
12435 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
12436 gunichar2 * chars = mono_string_chars (string);
12438 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
12440 for (i = 0; i < sizeof(indexes); i++)
12441 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
12445 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
12447 guint8 klass_guid [16];
12448 if (cominterop_class_guid (klass, klass_guid))
12449 return !memcmp (guid, klass_guid, sizeof (klass_guid));
12454 cominterop_ccw_addref (MonoCCWInterface* ccwe)
12456 gint32 ref_count = 0;
12457 MonoCCW* ccw = ccwe->ccw;
12459 g_assert (ccw->gc_handle);
12460 g_assert (ccw->ref_count >= 0);
12461 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
12462 if (ref_count == 1) {
12463 guint32 oldhandle = ccw->gc_handle;
12464 g_assert (oldhandle);
12465 /* since we now have a ref count, alloc a strong handle*/
12466 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12467 mono_gchandle_free (oldhandle);
12473 cominterop_ccw_release (MonoCCWInterface* ccwe)
12475 gint32 ref_count = 0;
12476 MonoCCW* ccw = ccwe->ccw;
12478 g_assert (ccw->ref_count > 0);
12479 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12480 if (ref_count == 0) {
12481 /* allow gc of object */
12482 guint32 oldhandle = ccw->gc_handle;
12483 g_assert (oldhandle);
12484 #ifdef PLATFORM_WIN32
12485 if (ccw->free_marshaler)
12486 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (ccw->free_marshaler);
12488 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12489 mono_gchandle_free (oldhandle);
12494 #ifdef PLATFORM_WIN32
12495 static const IID MONO_IID_IMarshal = {0x3, 0x0, 0x0, {0xC0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x46}};
12498 #ifdef PLATFORM_WIN32
12499 /* All ccw objects are free threaded */
12501 cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv)
12503 #ifdef PLATFORM_WIN32
12504 if (!ccw->free_marshaler) {
12507 tunk = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12508 /* remember to addref on QI */
12509 cominterop_ccw_addref (tunk);
12510 ret = CoCreateFreeThreadedMarshaler (tunk, (LPUNKNOWN*)&ccw->free_marshaler);
12511 cominterop_ccw_release(tunk);
12514 if (!ccw->free_marshaler)
12515 return MONO_E_NOINTERFACE;
12517 return ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (ccw->free_marshaler, (IID*)&MONO_IID_IMarshal, ppv);
12519 return MONO_E_NOINTERFACE;
12525 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12528 MonoClass *itf = NULL;
12530 MonoCCW* ccw = ccwe->ccw;
12531 MonoClass* klass = NULL;
12532 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12535 klass = mono_object_class (object);
12540 if (!mono_domain_get ())
12541 mono_thread_attach (mono_get_root_domain ());
12543 /* handle IUnknown special */
12544 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12545 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12546 /* remember to addref on QI */
12547 cominterop_ccw_addref (*ppv);
12551 /* handle IDispatch special */
12552 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12553 if (!cominterop_can_support_dispatch (klass))
12554 return MONO_E_NOINTERFACE;
12556 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12557 /* remember to addref on QI */
12558 cominterop_ccw_addref (*ppv);
12562 #ifdef PLATFORM_WIN32
12563 /* handle IMarshal special */
12564 if (0 == memcmp (riid, &MONO_IID_IMarshal, sizeof (IID))) {
12565 return cominterop_ccw_getfreethreadedmarshaler (ccw, object, ppv);
12569 ifaces = mono_class_get_implemented_interfaces (klass);
12571 for (i = 0; i < ifaces->len; ++i) {
12572 MonoClass *ic = NULL;
12573 ic = g_ptr_array_index (ifaces, i);
12574 if (cominterop_class_guid_equal (riid, ic)) {
12579 g_ptr_array_free (ifaces, TRUE);
12582 *ppv = cominterop_get_ccw (object, itf);
12583 /* remember to addref on QI */
12584 cominterop_ccw_addref (*ppv);
12588 return MONO_E_NOINTERFACE;
12592 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12594 return MONO_E_NOTIMPL;
12598 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12600 return MONO_E_NOTIMPL;
12604 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12605 gunichar2** rgszNames, guint32 cNames,
12606 guint32 lcid, gint32 *rgDispId)
12608 return MONO_E_NOTIMPL;
12612 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12613 gpointer riid, guint32 lcid,
12614 guint16 wFlags, gpointer pDispParams,
12615 gpointer pVarResult, gpointer pExcepInfo,
12618 return MONO_E_NOTIMPL;
12621 #else /* DISABLE_COM */
12624 mono_marshal_free_ccw (MonoObject* object)
12629 #endif /* DISABLE_COM */
12632 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12637 for (i = 0; i < len; ++i)
12641 g_assert (i < len);
12644 while (byte && !(byte & 1))
12646 g_assert (byte == 1);
12649 *bitmask = buf [i];
12653 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12655 MonoMethodBuilder *mb;
12656 MonoMethodSignature *sig, *csig;
12657 MonoExceptionClause *clause;
12662 int i, param_count, sig_size, pos_leave;
12666 klass = method->klass;
12667 image = method->klass->image;
12668 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12670 if ((res = mono_marshal_find_in_cache (cache, method)))
12673 sig = mono_method_signature (method);
12674 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12676 /* add "this" and exception param */
12677 param_count = sig->param_count + sig->hasthis + 1;
12679 /* dup & extend signature */
12680 csig = mono_metadata_signature_alloc (image, param_count);
12681 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12682 memcpy (csig, sig, sig_size);
12683 csig->param_count = param_count;
12686 csig->call_convention = MONO_CALL_DEFAULT;
12688 if (sig->hasthis) {
12690 csig->params [0] = &klass->byval_arg;
12691 /* move params up by one */
12692 for (i = 0; i < sig->param_count; i++)
12693 csig->params [i + 1] = sig->params [i];
12696 /* setup exception param as byref+[out] */
12697 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12698 &mono_defaults.exception_class->byval_arg);
12699 csig->params [param_count - 1]->byref = 1;
12700 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12702 /* convert struct return to object */
12703 if (MONO_TYPE_ISSTRUCT (sig->ret))
12704 csig->ret = &mono_defaults.object_class->byval_arg;
12706 /* local 0 (temp for exception object) */
12707 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12709 /* local 1 (temp for result) */
12710 if (!MONO_TYPE_IS_VOID (sig->ret))
12711 mono_mb_add_local (mb, sig->ret);
12713 /* clear exception arg */
12714 mono_mb_emit_ldarg (mb, param_count - 1);
12715 mono_mb_emit_byte (mb, CEE_LDNULL);
12716 mono_mb_emit_byte (mb, CEE_STIND_REF);
12719 mono_loader_lock ();
12720 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12721 mono_loader_unlock ();
12722 clause->try_offset = mono_mb_get_label (mb);
12724 /* push method's args */
12725 for (i = 0; i < param_count - 1; i++) {
12729 mono_mb_emit_ldarg (mb, i);
12731 /* get the byval type of the param */
12732 klass = mono_class_from_mono_type (csig->params [i]);
12733 type = &klass->byval_arg;
12735 /* unbox struct args */
12736 if (MONO_TYPE_ISSTRUCT (type)) {
12737 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12739 /* byref args & and the "this" arg must remain a ptr.
12740 Otherwise make a copy of the value type */
12741 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12742 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12744 csig->params [i] = &mono_defaults.object_class->byval_arg;
12749 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12750 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12752 mono_mb_emit_op (mb, CEE_CALL, method);
12754 /* save result at local 1 */
12755 if (!MONO_TYPE_IS_VOID (sig->ret))
12756 mono_mb_emit_stloc (mb, 1);
12758 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12761 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12762 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12763 clause->data.catch_class = mono_defaults.object_class;
12765 clause->handler_offset = mono_mb_get_label (mb);
12767 /* store exception at local 0 */
12768 mono_mb_emit_stloc (mb, 0);
12769 mono_mb_emit_ldarg (mb, param_count - 1);
12770 mono_mb_emit_ldloc (mb, 0);
12771 mono_mb_emit_byte (mb, CEE_STIND_REF);
12772 mono_mb_emit_branch (mb, CEE_LEAVE);
12774 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12776 mono_mb_set_clauses (mb, 1, clause);
12778 mono_mb_patch_branch (mb, pos_leave);
12781 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12782 mono_mb_emit_ldloc (mb, 1);
12784 /* box the return value */
12785 if (MONO_TYPE_ISSTRUCT (sig->ret))
12786 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12789 mono_mb_emit_byte (mb, CEE_RET);
12791 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12798 * mono_marshal_free_dynamic_wrappers:
12800 * Free wrappers of the dynamic method METHOD.
12803 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12805 g_assert (method->dynamic);
12807 mono_marshal_lock ();
12809 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12810 * they could be shared with other methods ?
12812 if (method->klass->image->runtime_invoke_direct_cache)
12813 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12814 mono_marshal_unlock ();