2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
15 #include "metadata/marshal.h"
16 #include "metadata/method-builder.h"
17 #include "metadata/tabledefs.h"
18 #include "metadata/exception.h"
19 #include "metadata/appdomain.h"
20 #include "mono/metadata/debug-helpers.h"
21 #include "mono/metadata/threadpool.h"
22 #include "mono/metadata/threads.h"
23 #include "mono/metadata/monitor.h"
24 #include "mono/metadata/metadata-internals.h"
25 #include "mono/metadata/domain-internals.h"
26 #include "mono/metadata/gc-internal.h"
27 #include "mono/metadata/threads-types.h"
28 #include "mono/metadata/string-icalls.h"
29 #include "mono/metadata/attrdefs.h"
30 #include "mono/metadata/gc-internal.h"
34 /* #define DEBUG_RUNTIME_CODE */
36 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
40 MONO_MARSHAL_NONE, /* No marshalling needed */
41 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
42 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
43 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
44 } MonoXDomainMarshalType;
51 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
54 #include "mono/cil/opcode.def"
59 struct _MonoRemotingMethods {
61 MonoMethod *invoke_with_check;
62 MonoMethod *xdomain_invoke;
63 MonoMethod *xdomain_dispatch;
66 typedef struct _MonoRemotingMethods MonoRemotingMethods;
69 * This mutex protects the various marshalling related caches in MonoImage
70 * and a few other data structures static to this file.
71 * Note that when this lock is held it is not possible to take other runtime
72 * locks like the loader lock.
74 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
75 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
76 static CRITICAL_SECTION marshal_mutex;
78 /* This mutex protects the various cominterop related caches in MonoImage */
79 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
80 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
81 static CRITICAL_SECTION cominterop_mutex;
83 /* Maps wrapper methods to the methods they wrap */
84 static GHashTable *wrapper_hash;
86 static guint32 last_error_tls_id;
88 static guint32 load_type_info_tls_id;
91 delegate_hash_table_add (MonoDelegate *d);
94 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
97 mono_struct_delete_old (MonoClass *klass, char *ptr);
100 mono_marshal_string_to_utf16 (MonoString *s);
103 mono_marshal_string_to_utf16_copy (MonoString *s);
106 mono_string_to_lpstr (MonoString *string_obj);
109 mono_string_from_bstr (gpointer bstr);
112 mono_free_bstr (gpointer bstr);
115 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
118 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
121 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
123 static MonoAsyncResult *
124 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
127 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
130 mono_marshal_xdomain_copy_value (MonoObject *val);
133 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
136 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
139 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
142 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
144 static MonoReflectionType *
145 type_from_handle (MonoType *handle);
148 mono_marshal_set_last_error_windows (int error);
151 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions);
153 static void init_safe_handle (void);
155 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
156 static MonoMethod *sh_dangerous_add_ref;
157 static MonoMethod *sh_dangerous_release;
163 sh_dangerous_add_ref = mono_class_get_method_from_name (
164 mono_defaults.safehandle_class, "DangerousAddRef", 1);
165 sh_dangerous_release = mono_class_get_method_from_name (
166 mono_defaults.safehandle_class, "DangerousRelease", 0);
170 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
172 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
174 mono_register_jit_icall (func, name, sig, save);
177 static MonoMethodSignature*
178 signature_dup (MonoImage *image, MonoMethodSignature *sig)
180 MonoMethodSignature *res;
183 res = mono_metadata_signature_alloc (image, sig->param_count);
184 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
185 memcpy (res, sig, sigsize);
190 static MonoMethodSignature*
191 signature_no_pinvoke (MonoMethod *method)
193 MonoMethodSignature *sig = mono_method_signature (method);
195 sig = signature_dup (method->klass->image, sig);
196 sig->pinvoke = FALSE;
202 /* Begin COM Interop related stuff until seperate file */
205 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
206 #ifdef PLATFORM_WIN32
207 #define STDCALL __stdcall
212 /* Upon creation of a CCW, only allocate a weak handle and set the
213 * reference count to 0. If the unmanaged client code decides to addref and
214 * hold onto the CCW, I then allocate a strong handle. Once the reference count
215 * goes back to 0, convert back to a weak handle.
220 GHashTable* vtable_hash;
223 /* This type is the actual pointer passed to unmanaged code
224 * to represent a COM interface.
232 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
234 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
236 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
239 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
241 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
243 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
244 gunichar2** rgszNames, guint32 cNames,
245 guint32 lcid, gint32 *rgDispId);
247 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
248 gpointer riid, guint32 lcid,
249 guint16 wFlags, gpointer pDispParams,
250 gpointer pVarResult, gpointer pExcepInfo,
254 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
257 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
260 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
263 * cominterop_method_signature:
266 * Returns: the corresponding unmanaged method signature for a managed COM
269 static MonoMethodSignature*
270 cominterop_method_signature (MonoMethod* method)
272 MonoMethodSignature *res;
273 MonoImage *image = method->klass->image;
274 MonoMethodSignature *sig = mono_method_signature (method);
275 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
278 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
280 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
283 res = mono_metadata_signature_alloc (image, param_count);
284 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
285 memcpy (res, sig, sigsize);
287 // now move args forward one
288 for (i = sig->param_count-1; i >= 0; i--)
289 res->params[i+1] = sig->params[i];
291 // first arg is interface pointer
292 res->params[0] = &mono_defaults.int_class->byval_arg;
298 // last arg is return type
299 if (!MONO_TYPE_IS_VOID (sig->ret)) {
300 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
301 res->params[param_count-1]->byref = 1;
302 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
305 // return type is always int32 (HRESULT)
306 res->ret = &mono_defaults.int32_class->byval_arg;
310 res->pinvoke = FALSE;
316 res->param_count = param_count;
318 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
319 #ifdef PLATFORM_WIN32
320 res->call_convention = MONO_CALL_STDCALL;
322 res->call_convention = MONO_CALL_C;
329 * cominterop_get_function_pointer:
330 * @itf: a pointer to the COM interface
331 * @slot: the vtable slot of the method pointer to return
333 * Returns: the unmanaged vtable function pointer from the interface
336 cominterop_get_function_pointer (gpointer itf, int slot)
339 func = *((*(gpointer**)itf)+slot);
344 * cominterop_object_is_com_object:
345 * @obj: a pointer to the object
347 * Returns: a value indicating if the object is a
348 * Runtime Callable Wrapper (RCW) for a COM object
351 cominterop_object_is_rcw (MonoObject *obj)
353 MonoClass *klass = NULL;
354 MonoRealProxy* real_proxy = NULL;
357 klass = mono_object_class (obj);
358 if (klass != mono_defaults.transparent_proxy_class)
361 real_proxy = ((MonoTransparentProxy*)obj)->rp;
365 klass = mono_object_class (real_proxy);
366 return (klass && klass == mono_defaults.com_interop_proxy_class);
370 cominterop_get_com_slot_begin (MonoClass* klass)
372 static MonoClass *interface_type_attribute = NULL;
373 MonoCustomAttrInfo *cinfo = NULL;
374 MonoInterfaceTypeAttribute* itf_attr = NULL;
376 if (!interface_type_attribute)
377 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
378 cinfo = mono_custom_attrs_from_class (klass);
380 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
382 mono_custom_attrs_free (cinfo);
385 if (itf_attr && itf_attr->intType == 1)
386 return 3; /* 3 methods in IUnknown*/
388 return 7; /* 7 methods in IDispatch*/
392 * cominterop_get_method_interface:
393 * @method: method being called
395 * Returns: the MonoClass* representing the interface on which
396 * the method is defined.
399 cominterop_get_method_interface (MonoMethod* method)
401 MonoClass *ic = method->klass;
403 /* if method is on a class, we need to look up interface method exists on */
404 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
405 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
408 for (i = 0; i < ifaces->len; ++i) {
410 ic = g_ptr_array_index (ifaces, i);
411 offset = mono_class_interface_offset (method->klass, ic);
412 if (method->slot >= offset && method->slot < offset + ic->method.count)
416 g_ptr_array_free (ifaces, TRUE);
421 g_assert (MONO_CLASS_IS_INTERFACE (ic));
427 * cominterop_get_com_slot_for_method:
430 * Returns: the method's slot in the COM interface vtable
433 cominterop_get_com_slot_for_method (MonoMethod* method)
435 guint32 slot = method->slot;
436 MonoClass *ic = method->klass;
438 /* if method is on a class, we need to look up interface method exists on */
439 if (!MONO_CLASS_IS_INTERFACE(ic)) {
441 ic = cominterop_get_method_interface (method);
442 offset = mono_class_interface_offset (method->klass, ic);
443 g_assert(offset >= 0);
448 g_assert (MONO_CLASS_IS_INTERFACE (ic));
450 return slot + cominterop_get_com_slot_begin (ic);
455 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
458 cominterop_class_guid (MonoClass* klass, guint8* guid)
460 static MonoClass *GuidAttribute = NULL;
461 MonoCustomAttrInfo *cinfo;
463 /* Handle the GuidAttribute */
465 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
467 cinfo = mono_custom_attrs_from_class (klass);
469 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
474 mono_custom_attrs_free (cinfo);
476 cominterop_mono_string_to_guid (attr->guid, guid);
483 * cominterop_get_interface:
484 * @obj: managed wrapper object containing COM object
485 * @ic: interface type to retrieve for COM object
487 * Returns: the COM interface requested
490 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
495 g_assert (MONO_CLASS_IS_INTERFACE (ic));
497 mono_cominterop_lock ();
499 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
500 mono_cominterop_unlock ();
504 int found = cominterop_class_guid (ic, iid);
507 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
508 if (hr < 0 && throw_exception) {
509 static MonoMethod* throw_exception_for_hr = NULL;
511 void* params[1] = {&hr};
512 if (!throw_exception_for_hr)
513 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
514 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
515 mono_raise_exception (ex);
518 if (hr >= 0 && itf) {
519 mono_cominterop_lock ();
521 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
522 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
523 mono_cominterop_unlock ();
534 cominterop_get_hresult_for_exception (MonoException* exc)
541 mono_marshal_init (void)
543 static gboolean module_initialized = FALSE;
545 if (!module_initialized) {
546 char* com_provider_env = NULL;
547 module_initialized = TRUE;
548 InitializeCriticalSection (&marshal_mutex);
549 InitializeCriticalSection (&cominterop_mutex);
550 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
551 last_error_tls_id = TlsAlloc ();
552 load_type_info_tls_id = TlsAlloc ();
554 com_provider_env = getenv ("MONO_COM");
555 if (com_provider_env && !strcmp(com_provider_env, "MS"))
556 com_provider = MONO_COM_MS;
558 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
559 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
560 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
561 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
562 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
563 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
564 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
565 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
566 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
567 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
568 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
569 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
570 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
571 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
572 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
573 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
574 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
575 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
576 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
577 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
578 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
579 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
580 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
581 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
582 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
583 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
584 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
585 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
586 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
587 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
588 register_icall (g_free, "g_free", "void ptr", FALSE);
589 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
590 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
591 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
592 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
593 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
594 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
595 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
596 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
597 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
598 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
599 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
600 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
601 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
602 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
603 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
604 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
605 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
606 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
607 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
608 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
609 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
610 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
615 mono_marshal_cleanup (void)
617 g_hash_table_destroy (wrapper_hash);
618 TlsFree (load_type_info_tls_id);
619 TlsFree (last_error_tls_id);
620 DeleteCriticalSection (&marshal_mutex);
621 DeleteCriticalSection (&cominterop_mutex);
624 MonoClass *byte_array_class;
625 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
626 static MonoMethod *method_set_context, *method_get_context;
627 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
630 mono_remoting_marshal_init (void)
634 static gboolean module_initialized = FALSE;
636 if (!module_initialized) {
637 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
638 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
639 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
640 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
642 klass = mono_defaults.real_proxy_class;
643 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
645 klass = mono_defaults.exception_class;
646 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
648 klass = mono_defaults.thread_class;
649 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
651 klass = mono_defaults.appdomain_class;
652 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
653 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
655 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
656 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
658 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
659 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
661 module_initialized = TRUE;
666 mono_delegate_to_ftnptr (MonoDelegate *delegate)
668 MonoMethod *method, *wrapper;
674 if (delegate->delegate_trampoline)
675 return delegate->delegate_trampoline;
677 klass = ((MonoObject *)delegate)->vtable->klass;
678 g_assert (klass->delegate);
680 method = delegate->method;
682 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
684 delegate->delegate_trampoline = mono_compile_method (wrapper);
686 // Add the delegate to the delegate hash table
687 delegate_hash_table_add (delegate);
689 /* when the object is collected, collect the dynamic method, too */
690 mono_object_register_finalizer ((MonoObject*)delegate);
692 return delegate->delegate_trampoline;
696 * this hash table maps from a delegate trampoline object to a weak reference
697 * of the delegate. As an optimizations with a non-moving GC we store the
698 * object pointer itself, otherwise we use a GC handle.
700 static GHashTable *delegate_hash_table;
703 delegate_hash_table_new (void) {
704 return g_hash_table_new (NULL, NULL);
708 delegate_hash_table_remove (MonoDelegate *d)
710 #ifdef HAVE_MOVING_COLLECTOR
713 mono_marshal_lock ();
714 if (delegate_hash_table == NULL)
715 delegate_hash_table = delegate_hash_table_new ();
716 #ifdef HAVE_MOVING_COLLECTOR
717 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
719 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
720 mono_marshal_unlock ();
721 #ifdef HAVE_MOVING_COLLECTOR
722 mono_gchandle_free (gchandle);
727 delegate_hash_table_add (MonoDelegate *d)
729 #ifdef HAVE_MOVING_COLLECTOR
730 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
732 mono_marshal_lock ();
733 if (delegate_hash_table == NULL)
734 delegate_hash_table = delegate_hash_table_new ();
735 #ifdef HAVE_MOVING_COLLECTOR
736 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
738 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
740 mono_marshal_unlock ();
744 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
746 #ifdef HAVE_MOVING_COLLECTOR
751 mono_marshal_lock ();
752 if (delegate_hash_table == NULL)
753 delegate_hash_table = delegate_hash_table_new ();
755 #ifdef HAVE_MOVING_COLLECTOR
756 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
757 mono_marshal_unlock ();
759 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
763 d = g_hash_table_lookup (delegate_hash_table, ftn);
764 mono_marshal_unlock ();
767 /* This is a native function, so construct a delegate for it */
768 static MonoClass *UnmanagedFunctionPointerAttribute;
769 MonoMethodSignature *sig;
771 MonoMarshalSpec **mspecs;
772 MonoCustomAttrInfo *cinfo;
773 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
774 MonoMethod *invoke = mono_get_delegate_invoke (klass);
775 MonoMethodPInvoke piinfo;
778 memset (&piinfo, 0, sizeof (piinfo));
779 if (!UnmanagedFunctionPointerAttribute)
780 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
782 /* The attribute is only available in Net 2.0 */
783 if (UnmanagedFunctionPointerAttribute) {
785 * The pinvoke attributes are stored in a real custom attribute so we have to
788 cinfo = mono_custom_attrs_from_class (klass);
790 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
792 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
795 mono_custom_attrs_free (cinfo);
799 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
800 mono_method_get_marshal_info (invoke, mspecs);
801 /* Freed below so don't alloc from mempool */
802 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
805 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
807 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
809 mono_metadata_free_marshal_spec (mspecs [i]);
813 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
814 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
817 if (d->object.vtable->domain != mono_domain_get ())
818 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
824 mono_delegate_free_ftnptr (MonoDelegate *delegate)
829 delegate_hash_table_remove (delegate);
831 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
833 if (!delegate->target) {
834 /* The wrapper method is shared between delegates -> no need to free it */
839 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
842 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
847 mono_array_to_savearray (MonoArray *array)
852 g_assert_not_reached ();
857 mono_array_to_lparray (MonoArray *array)
862 /* fixme: maybe we need to make a copy */
863 return array->vector;
867 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
869 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
871 if (elclass == mono_defaults.byte_class) {
872 GError *error = NULL;
876 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
879 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
883 g_error_free (error);
886 g_assert_not_reached ();
890 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
892 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
894 if (elclass == mono_defaults.byte_class) {
896 GError *error = NULL;
898 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
900 MonoException *exc = mono_get_exception_argument ("string", error->message);
901 g_error_free (error);
902 mono_raise_exception (exc);
905 memcpy (native_arr, as, MIN (strlen (as), elnum));
908 g_assert_not_reached ();
913 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
915 GError *error = NULL;
925 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
927 if (items_written > mono_stringbuilder_capacity (sb))
928 items_written = mono_stringbuilder_capacity (sb);
931 if (! sb->str || sb->str == sb->cached_str) {
932 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
933 sb->cached_str = NULL;
936 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
937 sb->length = items_written;
939 g_error_free (error);
945 * FIXME: This routine does not seem to do what it seems to do
946 * the @text is never copied into the string builder
949 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
956 g_assert (mono_string_chars (sb->str) == text);
958 for (len = 0; text [len] != 0; ++len)
965 * mono_string_builder_to_utf8:
966 * @sb: the string builder
968 * Converts to utf8 the contents of the MonoStringBuilder.
970 * Returns: a utf8 string with the contents of the StringBuilder.
972 * The return value must be released with g_free.
975 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
977 GError *error = NULL;
984 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
986 * The sb could have been allocated with the default capacity and be empty.
987 * we need to alloc a buffer of the default capacity in this case.
989 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
990 sb->cached_str = NULL;
993 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
995 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
997 g_error_free (error);
998 mono_marshal_free (res);
999 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1001 memcpy (res, tmp, sb->length + 1);
1009 * mono_string_builder_to_utf16:
1010 * @sb: the string builder
1012 * Converts to utf16 the contents of the MonoStringBuilder.
1014 * Returns: a utf16 string with the contents of the StringBuilder.
1016 * The return value must not be freed.
1019 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1027 * The stringbuilder might not have ownership of this string. If this is
1028 * the case, we must duplicate the string, so that we don't munge immutable
1031 if (sb->str == sb->cached_str) {
1033 * The sb could have been allocated with the default capacity and be empty.
1034 * we need to alloc a buffer of the default capacity in this case.
1036 if (sb->str->length == 0)
1037 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1039 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1040 sb->cached_str = NULL;
1043 return mono_string_chars (sb->str);
1047 mono_string_to_lpstr (MonoString *s)
1049 #ifdef PLATFORM_WIN32
1052 GError *error = NULL;
1058 as = CoTaskMemAlloc (1);
1063 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1065 MonoException *exc = mono_get_exception_argument ("string", error->message);
1066 g_error_free (error);
1067 mono_raise_exception(exc);
1070 as = CoTaskMemAlloc (len + 1);
1071 memcpy (as, tmp, len + 1);
1076 return mono_string_to_utf8 (s);
1081 mono_string_to_ansibstr (MonoString *string_obj)
1083 g_error ("UnmanagedMarshal.BStr is not implemented.");
1087 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
1088 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
1089 typedef void (*SysFreeStringFunc)(gunichar* str);
1091 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
1092 static SysStringLenFunc sys_string_len_ms = NULL;
1093 static SysFreeStringFunc sys_free_string_ms = NULL;
1096 init_com_provider_ms (void)
1098 static gboolean initialized = FALSE;
1100 MonoDl *module = NULL;
1101 const char* scope = "liboleaut32.so";
1106 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
1108 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
1109 g_assert_not_reached ();
1112 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
1114 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
1115 g_assert_not_reached ();
1119 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
1121 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
1122 g_assert_not_reached ();
1126 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
1128 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
1129 g_assert_not_reached ();
1138 mono_string_to_bstr (MonoString *string_obj)
1140 #ifdef PLATFORM_WIN32
1143 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1145 if (com_provider == MONO_COM_DEFAULT) {
1146 int slen = mono_string_length (string_obj);
1147 char *ret = g_malloc (slen * 2 + 4 + 2);
1150 memcpy (ret + 4, mono_string_chars (string_obj), slen * 2);
1151 * ((guint32 *) ret) = slen;
1152 ret [4 + slen * 2] = 0;
1153 ret [5 + slen * 2] = 0;
1156 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1157 gpointer ret = NULL;
1158 gunichar* str = NULL;
1160 len = mono_string_length (string_obj);
1161 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
1163 ret = sys_alloc_string_len_ms (str, len);
1167 g_assert_not_reached ();
1173 mono_string_from_bstr (gpointer bstr)
1175 #ifdef PLATFORM_WIN32
1178 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1180 if (com_provider == MONO_COM_DEFAULT) {
1181 return mono_string_new_utf16 (mono_domain_get (), bstr, *(guint32 *)((char *)bstr - 4));
1182 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1183 MonoString* str = NULL;
1185 gunichar2* utf16 = NULL;
1187 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
1188 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
1192 g_assert_not_reached ();
1199 mono_free_bstr (gpointer bstr)
1201 #ifdef PLATFORM_WIN32
1202 SysFreeString ((BSTR)bstr);
1204 if (com_provider == MONO_COM_DEFAULT) {
1205 g_free (((char *)bstr) - 4);
1206 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1207 sys_free_string_ms (bstr);
1209 g_assert_not_reached ();
1216 * mono_string_to_byvalstr:
1217 * @dst: Where to store the null-terminated utf8 decoded string.
1218 * @src: the MonoString to copy.
1219 * @size: the maximum number of bytes to copy.
1221 * Copies the MonoString pointed to by @src as a utf8 string
1222 * into @dst, it copies at most @size bytes into the destination.
1225 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1230 g_assert (dst != NULL);
1231 g_assert (size > 0);
1233 memset (dst, 0, size);
1237 s = mono_string_to_utf8 (src);
1238 len = MIN (size, strlen (s));
1241 memcpy (dst, s, len);
1246 * mono_string_to_byvalwstr:
1247 * @dst: Where to store the null-terminated utf16 decoded string.
1248 * @src: the MonoString to copy.
1249 * @size: the maximum number of bytes to copy.
1251 * Copies the MonoString pointed to by @src as a utf16 string into
1252 * @dst, it copies at most @size bytes into the destination (including
1253 * a terminating 16-bit zero terminator).
1256 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1260 g_assert (dst != NULL);
1261 g_assert (size > 1);
1264 memset (dst, 0, size * 2);
1268 len = MIN (size, (mono_string_length (src)));
1269 memcpy (dst, mono_string_chars (src), size * 2);
1270 if (size <= mono_string_length (src))
1272 *((gunichar2 *) dst + len) = 0;
1276 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1279 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1280 mono_mb_emit_byte (mb, CEE_LDIND_I);
1281 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1282 mono_mb_emit_byte (mb, CEE_ADD);
1283 mono_mb_emit_byte (mb, CEE_LDIND_I);
1284 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1285 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1286 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1287 pos = mono_mb_emit_branch (mb, branch_code);
1292 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1295 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1296 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1297 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1298 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1299 mono_mb_emit_icon (mb, -1);
1300 pos = mono_mb_emit_branch (mb, branch_code);
1305 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1307 // get function pointer from 1st arg, the COM interface pointer
1308 mono_mb_emit_ldarg (mb, 0);
1309 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1310 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1312 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1313 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1314 mono_mb_emit_calli (mb, sig);
1315 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1316 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1320 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1322 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1326 mono_type_to_ldind (MonoType *type)
1332 switch (type->type) {
1334 return CEE_LDIND_I1;
1336 case MONO_TYPE_BOOLEAN:
1337 return CEE_LDIND_U1;
1339 return CEE_LDIND_I2;
1341 case MONO_TYPE_CHAR:
1342 return CEE_LDIND_U2;
1344 return CEE_LDIND_I4;
1346 return CEE_LDIND_U4;
1350 case MONO_TYPE_FNPTR:
1352 case MONO_TYPE_CLASS:
1353 case MONO_TYPE_STRING:
1354 case MONO_TYPE_OBJECT:
1355 case MONO_TYPE_SZARRAY:
1356 case MONO_TYPE_ARRAY:
1357 return CEE_LDIND_REF;
1360 return CEE_LDIND_I8;
1362 return CEE_LDIND_R4;
1364 return CEE_LDIND_R8;
1365 case MONO_TYPE_VALUETYPE:
1366 if (type->data.klass->enumtype) {
1367 type = type->data.klass->enum_basetype;
1371 case MONO_TYPE_TYPEDBYREF:
1373 case MONO_TYPE_GENERICINST:
1374 type = &type->data.generic_class->container_class->byval_arg;
1377 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1383 mono_type_to_stind (MonoType *type)
1389 switch (type->type) {
1392 case MONO_TYPE_BOOLEAN:
1393 return CEE_STIND_I1;
1396 case MONO_TYPE_CHAR:
1397 return CEE_STIND_I2;
1400 return CEE_STIND_I4;
1404 case MONO_TYPE_FNPTR:
1406 case MONO_TYPE_CLASS:
1407 case MONO_TYPE_STRING:
1408 case MONO_TYPE_OBJECT:
1409 case MONO_TYPE_SZARRAY:
1410 case MONO_TYPE_ARRAY:
1411 return CEE_STIND_REF;
1414 return CEE_STIND_I8;
1416 return CEE_STIND_R4;
1418 return CEE_STIND_R8;
1419 case MONO_TYPE_VALUETYPE:
1420 if (type->data.klass->enumtype) {
1421 type = type->data.klass->enum_basetype;
1425 case MONO_TYPE_TYPEDBYREF:
1427 case MONO_TYPE_GENERICINST:
1428 type = &type->data.generic_class->container_class->byval_arg;
1431 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1437 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1440 case MONO_MARSHAL_CONV_BOOL_I4:
1441 mono_mb_emit_ldloc (mb, 1);
1442 mono_mb_emit_ldloc (mb, 0);
1443 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1444 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1445 mono_mb_emit_byte (mb, 3);
1446 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1447 mono_mb_emit_byte (mb, CEE_BR_S);
1448 mono_mb_emit_byte (mb, 1);
1449 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1450 mono_mb_emit_byte (mb, CEE_STIND_I1);
1452 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_ldloc (mb, 0);
1455 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1456 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1457 mono_mb_emit_byte (mb, 3);
1458 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1459 mono_mb_emit_byte (mb, CEE_BR_S);
1460 mono_mb_emit_byte (mb, 1);
1461 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1462 mono_mb_emit_byte (mb, CEE_STIND_I1);
1464 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1465 MonoClass *eklass = NULL;
1468 if (type->type == MONO_TYPE_SZARRAY) {
1469 eklass = type->data.klass;
1471 g_assert_not_reached ();
1474 esize = mono_class_native_size (eklass, NULL);
1476 /* create a new array */
1477 mono_mb_emit_ldloc (mb, 1);
1478 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1479 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1480 mono_mb_emit_byte (mb, CEE_STIND_I);
1482 if (eklass->blittable) {
1483 /* copy the elements */
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_byte (mb, CEE_LDIND_I);
1486 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1487 mono_mb_emit_byte (mb, CEE_ADD);
1488 mono_mb_emit_ldloc (mb, 0);
1489 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1490 mono_mb_emit_byte (mb, CEE_PREFIX1);
1491 mono_mb_emit_byte (mb, CEE_CPBLK);
1494 int array_var, src_var, dst_var, index_var;
1495 guint32 label2, label3;
1497 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1498 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1499 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1502 mono_mb_emit_ldloc (mb, 1);
1503 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1504 mono_mb_emit_stloc (mb, array_var);
1506 /* save the old src pointer */
1507 mono_mb_emit_ldloc (mb, 0);
1508 mono_mb_emit_stloc (mb, src_var);
1509 /* save the old dst pointer */
1510 mono_mb_emit_ldloc (mb, 1);
1511 mono_mb_emit_stloc (mb, dst_var);
1513 /* Emit marshalling loop */
1514 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1515 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1516 mono_mb_emit_stloc (mb, index_var);
1519 label2 = mono_mb_get_label (mb);
1520 mono_mb_emit_ldloc (mb, index_var);
1521 mono_mb_emit_ldloc (mb, array_var);
1522 mono_mb_emit_byte (mb, CEE_LDLEN);
1523 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1525 /* src is already set */
1528 mono_mb_emit_ldloc (mb, array_var);
1529 mono_mb_emit_ldloc (mb, index_var);
1530 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1531 mono_mb_emit_stloc (mb, 1);
1533 /* Do the conversion */
1534 emit_struct_conv (mb, eklass, TRUE);
1537 mono_mb_emit_add_to_local (mb, index_var, 1);
1539 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1541 mono_mb_patch_branch (mb, label3);
1543 /* restore the old src pointer */
1544 mono_mb_emit_ldloc (mb, src_var);
1545 mono_mb_emit_stloc (mb, 0);
1546 /* restore the old dst pointer */
1547 mono_mb_emit_ldloc (mb, dst_var);
1548 mono_mb_emit_stloc (mb, 1);
1552 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1553 MonoClass *eclass = mono_defaults.char_class;
1555 /* create a new array */
1556 mono_mb_emit_ldloc (mb, 1);
1557 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1558 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1559 mono_mb_emit_byte (mb, CEE_STIND_REF);
1561 mono_mb_emit_ldloc (mb, 1);
1562 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1563 mono_mb_emit_ldloc (mb, 0);
1564 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1565 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1566 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1569 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1570 mono_mb_emit_ldloc (mb, 1);
1571 mono_mb_emit_ldloc (mb, 0);
1572 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1573 mono_mb_emit_byte (mb, CEE_STIND_REF);
1575 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1576 mono_mb_emit_ldloc (mb, 1);
1577 mono_mb_emit_ldloc (mb, 0);
1578 mono_mb_emit_icall (mb, mono_string_from_utf16);
1579 mono_mb_emit_byte (mb, CEE_STIND_REF);
1581 case MONO_MARSHAL_CONV_STR_LPTSTR:
1582 mono_mb_emit_ldloc (mb, 1);
1583 mono_mb_emit_ldloc (mb, 0);
1584 mono_mb_emit_byte (mb, CEE_LDIND_I);
1585 #ifdef PLATFORM_WIN32
1586 mono_mb_emit_icall (mb, mono_string_from_utf16);
1588 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1590 mono_mb_emit_byte (mb, CEE_STIND_REF);
1592 case MONO_MARSHAL_CONV_STR_LPSTR:
1593 mono_mb_emit_ldloc (mb, 1);
1594 mono_mb_emit_ldloc (mb, 0);
1595 mono_mb_emit_byte (mb, CEE_LDIND_I);
1596 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1597 mono_mb_emit_byte (mb, CEE_STIND_REF);
1599 case MONO_MARSHAL_CONV_STR_LPWSTR:
1600 mono_mb_emit_ldloc (mb, 1);
1601 mono_mb_emit_ldloc (mb, 0);
1602 mono_mb_emit_byte (mb, CEE_LDIND_I);
1603 mono_mb_emit_icall (mb, mono_string_from_utf16);
1604 mono_mb_emit_byte (mb, CEE_STIND_REF);
1606 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1607 MonoClass *klass = mono_class_from_mono_type (type);
1608 int src_var, dst_var;
1610 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1611 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1613 /* *dst = new object */
1614 mono_mb_emit_ldloc (mb, 1);
1615 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1616 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1617 mono_mb_emit_byte (mb, CEE_STIND_REF);
1619 /* save the old src pointer */
1620 mono_mb_emit_ldloc (mb, 0);
1621 mono_mb_emit_stloc (mb, src_var);
1622 /* save the old dst pointer */
1623 mono_mb_emit_ldloc (mb, 1);
1624 mono_mb_emit_stloc (mb, dst_var);
1626 /* dst = pointer to newly created object data */
1627 mono_mb_emit_ldloc (mb, 1);
1628 mono_mb_emit_byte (mb, CEE_LDIND_I);
1629 mono_mb_emit_icon (mb, sizeof (MonoObject));
1630 mono_mb_emit_byte (mb, CEE_ADD);
1631 mono_mb_emit_stloc (mb, 1);
1633 emit_struct_conv (mb, klass, TRUE);
1635 /* restore the old src pointer */
1636 mono_mb_emit_ldloc (mb, src_var);
1637 mono_mb_emit_stloc (mb, 0);
1638 /* restore the old dst pointer */
1639 mono_mb_emit_ldloc (mb, dst_var);
1640 mono_mb_emit_stloc (mb, 1);
1643 case MONO_MARSHAL_CONV_DEL_FTN: {
1644 MonoClass *klass = mono_class_from_mono_type (type);
1646 mono_mb_emit_ldloc (mb, 1);
1647 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1648 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1649 mono_mb_emit_ldloc (mb, 0);
1650 mono_mb_emit_byte (mb, CEE_LDIND_I);
1651 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1652 mono_mb_emit_byte (mb, CEE_STIND_REF);
1655 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1656 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1658 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1659 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1660 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1661 static MonoClass* com_interop_proxy_class = NULL;
1662 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1663 static MonoMethod* get_transparent_proxy = NULL;
1665 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1666 MonoClass *klass = NULL;
1668 /* COM types are initialized lazily */
1669 mono_init_com_types ();
1671 klass = mono_class_from_mono_type (type);
1673 mono_mb_emit_ldloc (mb, 1);
1674 mono_mb_emit_byte (mb, CEE_LDNULL);
1675 mono_mb_emit_byte (mb, CEE_STIND_REF);
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_I);
1679 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1681 /* load dst to store later */
1682 mono_mb_emit_ldloc (mb, 1);
1684 mono_mb_emit_ldloc (mb, 0);
1685 mono_mb_emit_byte (mb, CEE_LDIND_I);
1686 mono_mb_emit_icon (mb, TRUE);
1687 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1688 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1690 if (!com_interop_proxy_class)
1691 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1692 if (!com_interop_proxy_get_proxy)
1693 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1694 if (!get_transparent_proxy)
1695 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1697 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1699 mono_mb_emit_ldloc (mb, 0);
1700 mono_mb_emit_byte (mb, CEE_LDIND_I);
1701 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1702 mono_mb_emit_icall (mb, type_from_handle);
1703 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1704 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1705 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1707 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1709 mono_mb_emit_byte (mb, CEE_STIND_REF);
1710 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1712 /* is already managed object */
1713 mono_mb_patch_short_branch (mb, pos_ccw);
1714 mono_mb_emit_ldloc (mb, 0);
1715 mono_mb_emit_byte (mb, CEE_LDIND_I);
1716 mono_mb_emit_icon (mb, TRUE);
1717 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1719 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1721 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1723 mono_mb_emit_byte (mb, CEE_STIND_REF);
1725 mono_mb_patch_short_branch (mb, pos_end);
1727 mono_mb_patch_short_branch (mb, pos_null);
1731 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1733 * Passing SafeHandles as ref does not allow the unmanaged code
1734 * to change the SafeHandle value. If the value is changed,
1735 * we should issue a diagnostic exception (NotSupportedException)
1736 * that informs the user that changes to handles in unmanaged code
1739 * Since we currently have no access to the original
1740 * SafeHandle that was used during the marshalling,
1741 * for now we just ignore this, and ignore/discard any
1742 * changes that might have happened to the handle.
1747 case MONO_MARSHAL_CONV_HANDLEREF: {
1749 * Passing HandleRefs in a struct that is ref()ed does not
1750 * copy the values back to the HandleRef
1755 case MONO_MARSHAL_CONV_STR_BSTR:
1756 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1757 case MONO_MARSHAL_CONV_STR_TBSTR:
1758 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1760 g_warning ("marshaling conversion %d not implemented", conv);
1761 g_assert_not_reached ();
1766 conv_to_icall (MonoMarshalConv conv)
1769 case MONO_MARSHAL_CONV_STR_LPWSTR:
1770 return mono_marshal_string_to_utf16;
1771 case MONO_MARSHAL_CONV_LPWSTR_STR:
1772 return mono_string_from_utf16;
1773 case MONO_MARSHAL_CONV_LPSTR_STR:
1774 return mono_string_new_wrapper;
1775 case MONO_MARSHAL_CONV_STR_LPTSTR:
1776 #ifdef PLATFORM_WIN32
1777 return mono_marshal_string_to_utf16;
1779 return mono_string_to_lpstr;
1781 case MONO_MARSHAL_CONV_STR_LPSTR:
1782 return mono_string_to_lpstr;
1783 case MONO_MARSHAL_CONV_STR_BSTR:
1784 return mono_string_to_bstr;
1785 case MONO_MARSHAL_CONV_BSTR_STR:
1786 return mono_string_from_bstr;
1787 case MONO_MARSHAL_CONV_STR_TBSTR:
1788 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1789 return mono_string_to_ansibstr;
1790 case MONO_MARSHAL_CONV_SB_LPSTR:
1791 return mono_string_builder_to_utf8;
1792 case MONO_MARSHAL_CONV_SB_LPTSTR:
1793 #ifdef PLATFORM_WIN32
1794 return mono_string_builder_to_utf16;
1796 return mono_string_builder_to_utf8;
1798 case MONO_MARSHAL_CONV_SB_LPWSTR:
1799 return mono_string_builder_to_utf16;
1800 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1801 return mono_array_to_savearray;
1802 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1803 return mono_array_to_lparray;
1804 case MONO_MARSHAL_CONV_DEL_FTN:
1805 return mono_delegate_to_ftnptr;
1806 case MONO_MARSHAL_CONV_FTN_DEL:
1807 return mono_ftnptr_to_delegate;
1808 case MONO_MARSHAL_CONV_LPSTR_SB:
1809 return mono_string_utf8_to_builder;
1810 case MONO_MARSHAL_CONV_LPTSTR_SB:
1811 #ifdef PLATFORM_WIN32
1812 return mono_string_utf16_to_builder;
1814 return mono_string_utf8_to_builder;
1816 case MONO_MARSHAL_CONV_LPWSTR_SB:
1817 return mono_string_utf16_to_builder;
1818 case MONO_MARSHAL_FREE_ARRAY:
1819 return mono_marshal_free_array;
1820 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1821 return mono_string_to_byvalstr;
1822 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1823 return mono_string_to_byvalwstr;
1825 g_assert_not_reached ();
1832 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1837 case MONO_MARSHAL_CONV_BOOL_I4:
1838 mono_mb_emit_ldloc (mb, 1);
1839 mono_mb_emit_ldloc (mb, 0);
1840 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1841 mono_mb_emit_byte (mb, CEE_STIND_I4);
1843 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1847 mono_mb_emit_byte (mb, CEE_NEG);
1848 mono_mb_emit_byte (mb, CEE_STIND_I2);
1850 case MONO_MARSHAL_CONV_STR_LPWSTR:
1851 case MONO_MARSHAL_CONV_STR_LPSTR:
1852 case MONO_MARSHAL_CONV_STR_LPTSTR:
1853 case MONO_MARSHAL_CONV_STR_BSTR:
1854 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1855 case MONO_MARSHAL_CONV_STR_TBSTR: {
1858 /* free space if free == true */
1859 mono_mb_emit_ldloc (mb, 2);
1860 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1861 mono_mb_emit_ldloc (mb, 1);
1862 mono_mb_emit_byte (mb, CEE_LDIND_I);
1863 mono_mb_emit_icall (mb, g_free);
1864 mono_mb_patch_short_branch (mb, pos);
1866 mono_mb_emit_ldloc (mb, 1);
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1869 mono_mb_emit_icall (mb, conv_to_icall (conv));
1870 mono_mb_emit_byte (mb, CEE_STIND_I);
1873 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1874 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1875 case MONO_MARSHAL_CONV_DEL_FTN:
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_ldloc (mb, 0);
1878 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1879 mono_mb_emit_icall (mb, conv_to_icall (conv));
1880 mono_mb_emit_byte (mb, CEE_STIND_I);
1882 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1883 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1886 mono_mb_emit_ldloc (mb, 1); /* dst */
1887 mono_mb_emit_ldloc (mb, 0);
1888 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1889 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1890 mono_mb_emit_icall (mb, conv_to_icall (conv));
1893 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1894 MonoClass *eklass = NULL;
1897 if (type->type == MONO_TYPE_SZARRAY) {
1898 eklass = type->data.klass;
1900 g_assert_not_reached ();
1903 if (eklass->valuetype)
1904 esize = mono_class_native_size (eklass, NULL);
1906 esize = sizeof (gpointer);
1908 mono_mb_emit_ldloc (mb, 0);
1909 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1910 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1912 if (eklass->blittable) {
1913 mono_mb_emit_ldloc (mb, 1);
1914 mono_mb_emit_ldloc (mb, 0);
1915 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1916 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1917 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1918 mono_mb_emit_byte (mb, CEE_PREFIX1);
1919 mono_mb_emit_byte (mb, CEE_CPBLK);
1921 int array_var, src_var, dst_var, index_var;
1922 guint32 label2, label3;
1924 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1925 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1926 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1929 mono_mb_emit_ldloc (mb, 0);
1930 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1931 mono_mb_emit_stloc (mb, array_var);
1933 /* save the old src pointer */
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_stloc (mb, src_var);
1936 /* save the old dst pointer */
1937 mono_mb_emit_ldloc (mb, 1);
1938 mono_mb_emit_stloc (mb, dst_var);
1940 /* Emit marshalling loop */
1941 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1942 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1943 mono_mb_emit_stloc (mb, index_var);
1946 label2 = mono_mb_get_label (mb);
1947 mono_mb_emit_ldloc (mb, index_var);
1948 mono_mb_emit_ldloc (mb, array_var);
1949 mono_mb_emit_byte (mb, CEE_LDLEN);
1950 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1953 mono_mb_emit_ldloc (mb, array_var);
1954 mono_mb_emit_ldloc (mb, index_var);
1955 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1956 mono_mb_emit_stloc (mb, 0);
1958 /* dst is already set */
1960 /* Do the conversion */
1961 emit_struct_conv (mb, eklass, FALSE);
1964 mono_mb_emit_add_to_local (mb, index_var, 1);
1966 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1968 mono_mb_patch_branch (mb, label3);
1970 /* restore the old src pointer */
1971 mono_mb_emit_ldloc (mb, src_var);
1972 mono_mb_emit_stloc (mb, 0);
1973 /* restore the old dst pointer */
1974 mono_mb_emit_ldloc (mb, dst_var);
1975 mono_mb_emit_stloc (mb, 1);
1978 mono_mb_patch_branch (mb, pos);
1981 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1982 mono_mb_emit_ldloc (mb, 0);
1983 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1984 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
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_ptr (mb, mono_defaults.byte_class);
1990 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1991 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1992 mono_mb_patch_short_branch (mb, pos);
1995 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1996 int src_var, dst_var;
1998 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1999 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2001 mono_mb_emit_ldloc (mb, 0);
2002 mono_mb_emit_byte (mb, CEE_LDIND_I);
2003 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2005 /* save the old src pointer */
2006 mono_mb_emit_ldloc (mb, 0);
2007 mono_mb_emit_stloc (mb, src_var);
2008 /* save the old dst pointer */
2009 mono_mb_emit_ldloc (mb, 1);
2010 mono_mb_emit_stloc (mb, dst_var);
2012 /* src = pointer to object data */
2013 mono_mb_emit_ldloc (mb, 0);
2014 mono_mb_emit_byte (mb, CEE_LDIND_I);
2015 mono_mb_emit_icon (mb, sizeof (MonoObject));
2016 mono_mb_emit_byte (mb, CEE_ADD);
2017 mono_mb_emit_stloc (mb, 0);
2019 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2021 /* restore the old src pointer */
2022 mono_mb_emit_ldloc (mb, src_var);
2023 mono_mb_emit_stloc (mb, 0);
2024 /* restore the old dst pointer */
2025 mono_mb_emit_ldloc (mb, dst_var);
2026 mono_mb_emit_stloc (mb, 1);
2028 mono_mb_patch_branch (mb, pos);
2031 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2032 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2033 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2034 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2036 /* COM types are initialized lazily */
2037 mono_init_com_types ();
2040 mono_mb_emit_ldloc (mb, 1);
2041 mono_mb_emit_icon (mb, 0);
2042 mono_mb_emit_byte (mb, CEE_CONV_U);
2043 mono_mb_emit_byte (mb, CEE_STIND_I);
2045 mono_mb_emit_ldloc (mb, 0);
2046 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2048 // if null just break, dst was already inited to 0
2049 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2051 mono_mb_emit_ldloc (mb, 0);
2052 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2053 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2054 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2056 // load dst to store later
2057 mono_mb_emit_ldloc (mb, 1);
2060 mono_mb_emit_ldloc (mb, 0);
2061 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2062 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2063 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2065 /* load the RCW from the ComInteropProxy*/
2066 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2067 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2069 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2070 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2071 mono_mb_emit_icon (mb, TRUE);
2072 mono_mb_emit_icall (mb, cominterop_get_interface);
2075 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2076 static MonoProperty* iunknown = NULL;
2079 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2080 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2082 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2083 static MonoProperty* idispatch = NULL;
2086 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2087 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2090 g_assert_not_reached ();
2092 mono_mb_emit_byte (mb, CEE_STIND_I);
2093 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2096 mono_mb_patch_short_branch (mb, pos_rcw);
2097 /* load dst to store later */
2098 mono_mb_emit_ldloc (mb, 1);
2100 mono_mb_emit_ldloc (mb, 0);
2101 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2103 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2104 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2105 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2106 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2107 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2108 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2110 g_assert_not_reached ();
2111 mono_mb_emit_icall (mb, cominterop_get_ccw);
2112 mono_mb_emit_byte (mb, CEE_STIND_I);
2114 mono_mb_patch_short_branch (mb, pos_end);
2115 mono_mb_patch_short_branch (mb, pos_null);
2119 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2120 int dar_release_slot, pos;
2122 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2125 * The following is ifdefed-out, because I have no way of doing the
2126 * DangerousRelease when destroying the structure
2129 /* set release = false */
2130 mono_mb_emit_icon (mb, 0);
2131 mono_mb_emit_stloc (mb, dar_release_slot);
2132 if (!sh_dangerous_add_ref)
2133 init_safe_handle ();
2135 /* safehandle.DangerousAddRef (ref release) */
2136 mono_mb_emit_ldloc (mb, 0); /* the source */
2137 mono_mb_emit_byte (mb, CEE_LDIND_I);
2138 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2139 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2141 mono_mb_emit_ldloc (mb, 0);
2142 mono_mb_emit_byte (mb, CEE_LDIND_I);
2143 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2144 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2145 mono_mb_patch_branch (mb, pos);
2147 /* Pull the handle field from SafeHandle */
2148 mono_mb_emit_ldloc (mb, 1);
2149 mono_mb_emit_ldloc (mb, 0);
2150 mono_mb_emit_byte (mb, CEE_LDIND_I);
2151 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2152 mono_mb_emit_byte (mb, CEE_LDIND_I);
2153 mono_mb_emit_byte (mb, CEE_STIND_I);
2157 case MONO_MARSHAL_CONV_HANDLEREF: {
2158 mono_mb_emit_ldloc (mb, 1);
2159 mono_mb_emit_ldloc (mb, 0);
2160 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2161 mono_mb_emit_byte (mb, CEE_ADD);
2162 mono_mb_emit_byte (mb, CEE_LDIND_I);
2163 mono_mb_emit_byte (mb, CEE_STIND_I);
2168 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2169 MonoException *exc = mono_get_exception_not_implemented (msg);
2172 mono_raise_exception (exc);
2178 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2180 MonoMarshalType *info;
2184 emit_struct_conv(mb, klass->parent, to_object);
2186 info = mono_marshal_load_type_info (klass);
2188 if (info->native_size == 0)
2191 if (klass->blittable) {
2192 int msize = mono_class_value_size (klass, NULL);
2193 g_assert (msize == info->native_size);
2194 mono_mb_emit_ldloc (mb, 1);
2195 mono_mb_emit_ldloc (mb, 0);
2196 mono_mb_emit_icon (mb, msize);
2197 mono_mb_emit_byte (mb, CEE_PREFIX1);
2198 mono_mb_emit_byte (mb, CEE_CPBLK);
2200 mono_mb_emit_add_to_local (mb, 0, msize);
2201 mono_mb_emit_add_to_local (mb, 1, msize);
2205 for (i = 0; i < info->num_fields; i++) {
2206 MonoMarshalNative ntype;
2207 MonoMarshalConv conv;
2208 MonoType *ftype = info->fields [i].field->type;
2211 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2213 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2216 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2219 msize = klass->instance_size - info->fields [i].field->offset;
2220 usize = info->native_size - info->fields [i].offset;
2222 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2223 usize = info->fields [i + 1].offset - info->fields [i].offset;
2226 if (klass != mono_defaults.safehandle_class){
2228 * FIXME: Should really check for usize==0 and msize>0, but we apply
2229 * the layout to the managed structure as well.
2232 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2233 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2234 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2235 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2236 "reference field at the same offset as another field.",
2237 mono_type_full_name (&klass->byval_arg));
2240 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2241 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2242 mono_type_full_name (&klass->byval_arg));
2247 case MONO_MARSHAL_CONV_NONE: {
2250 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2251 ftype->type == MONO_TYPE_U) {
2252 mono_mb_emit_ldloc (mb, 1);
2253 mono_mb_emit_ldloc (mb, 0);
2254 mono_mb_emit_byte (mb, CEE_LDIND_I);
2255 mono_mb_emit_byte (mb, CEE_STIND_I);
2266 case MONO_TYPE_BOOLEAN:
2269 case MONO_TYPE_CHAR:
2275 mono_mb_emit_ldloc (mb, 1);
2276 mono_mb_emit_ldloc (mb, 0);
2277 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2278 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2280 case MONO_TYPE_VALUETYPE: {
2281 int src_var, dst_var;
2283 if (ftype->data.klass->enumtype) {
2284 ftype = ftype->data.klass->enum_basetype;
2288 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2289 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2291 /* save the old src pointer */
2292 mono_mb_emit_ldloc (mb, 0);
2293 mono_mb_emit_stloc (mb, src_var);
2294 /* save the old dst pointer */
2295 mono_mb_emit_ldloc (mb, 1);
2296 mono_mb_emit_stloc (mb, dst_var);
2298 emit_struct_conv (mb, ftype->data.klass, to_object);
2300 /* restore the old src pointer */
2301 mono_mb_emit_ldloc (mb, src_var);
2302 mono_mb_emit_stloc (mb, 0);
2303 /* restore the old dst pointer */
2304 mono_mb_emit_ldloc (mb, dst_var);
2305 mono_mb_emit_stloc (mb, 1);
2308 case MONO_TYPE_OBJECT: {
2309 mono_init_com_types ();
2311 static MonoMethod *variant_clear = NULL;
2312 static MonoMethod *get_object_for_native_variant = NULL;
2315 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2316 if (!get_object_for_native_variant)
2317 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2318 mono_mb_emit_ldloc (mb, 1);
2319 mono_mb_emit_ldloc (mb, 0);
2320 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2321 mono_mb_emit_byte (mb, CEE_STIND_REF);
2323 mono_mb_emit_ldloc (mb, 0);
2324 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2327 static MonoMethod *get_native_variant_for_object = NULL;
2329 if (!get_native_variant_for_object)
2330 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2332 mono_mb_emit_ldloc (mb, 0);
2333 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2334 mono_mb_emit_ldloc (mb, 1);
2335 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2341 g_warning ("marshaling type %02x not implemented", ftype->type);
2342 g_assert_not_reached ();
2347 int src_var, dst_var;
2349 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2350 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2352 /* save the old src pointer */
2353 mono_mb_emit_ldloc (mb, 0);
2354 mono_mb_emit_stloc (mb, src_var);
2355 /* save the old dst pointer */
2356 mono_mb_emit_ldloc (mb, 1);
2357 mono_mb_emit_stloc (mb, dst_var);
2360 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2362 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2364 /* restore the old src pointer */
2365 mono_mb_emit_ldloc (mb, src_var);
2366 mono_mb_emit_stloc (mb, 0);
2367 /* restore the old dst pointer */
2368 mono_mb_emit_ldloc (mb, dst_var);
2369 mono_mb_emit_stloc (mb, 1);
2374 mono_mb_emit_add_to_local (mb, 0, usize);
2375 mono_mb_emit_add_to_local (mb, 1, msize);
2377 mono_mb_emit_add_to_local (mb, 0, msize);
2378 mono_mb_emit_add_to_local (mb, 1, usize);
2384 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2386 /* Call DestroyStructure */
2387 /* FIXME: Only do this if needed */
2388 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2389 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2390 mono_mb_emit_ldloc (mb, struct_var);
2391 mono_mb_emit_icall (mb, mono_struct_delete_old);
2395 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2399 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2400 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2401 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2404 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2406 mono_mb_emit_icall (mb, checkpoint_func);
2408 mono_mb_patch_branch (mb, pos_noabort);
2412 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2414 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2417 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2421 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2423 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2426 static MonoAsyncResult *
2427 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2429 MonoMethodMessage *msg;
2430 MonoDelegate *async_callback;
2434 MonoMethod *method = NULL, *method2 = NULL;
2436 g_assert (delegate);
2438 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2440 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2441 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2443 /* If the target is a proxy, make a direct call. Is proxy's work
2444 // to make the call asynchronous.
2446 MonoAsyncResult *ares;
2448 MonoArray *out_args;
2450 method = delegate->method;
2452 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2453 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2454 g_assert(handle != NULL);
2455 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2456 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2457 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2458 MONO_OBJECT_SETREF (msg, async_result, ares);
2459 msg->call_type = CallType_BeginInvoke;
2461 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2466 klass = delegate->object.vtable->klass;
2468 method = mono_get_delegate_invoke (klass);
2469 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2472 g_assert (method != NULL);
2474 im = mono_get_delegate_invoke (method->klass);
2475 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2477 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2481 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2483 int i, params_var, tmp_var;
2485 /* allocate local (pointer) *params[] */
2486 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2487 /* allocate local (pointer) tmp */
2488 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2490 /* alloate space on stack to store an array of pointers to the arguments */
2491 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2492 mono_mb_emit_byte (mb, CEE_PREFIX1);
2493 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2494 mono_mb_emit_stloc (mb, params_var);
2497 mono_mb_emit_ldloc (mb, params_var);
2498 mono_mb_emit_stloc (mb, tmp_var);
2500 if (save_this && sig->hasthis) {
2501 mono_mb_emit_ldloc (mb, tmp_var);
2502 mono_mb_emit_ldarg_addr (mb, 0);
2503 mono_mb_emit_byte (mb, CEE_STIND_I);
2504 /* tmp = tmp + sizeof (gpointer) */
2505 if (sig->param_count)
2506 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2510 for (i = 0; i < sig->param_count; i++) {
2511 mono_mb_emit_ldloc (mb, tmp_var);
2512 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2513 mono_mb_emit_byte (mb, CEE_STIND_I);
2514 /* tmp = tmp + sizeof (gpointer) */
2515 if (i < (sig->param_count - 1))
2516 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2523 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2527 GString *res = g_string_new ("");
2530 g_string_append (res, prefix);
2531 g_string_append_c (res, '_');
2534 mono_type_get_desc (res, sig->ret, FALSE);
2536 for (i = 0; i < sig->param_count; ++i) {
2537 g_string_append_c (res, '_');
2538 mono_type_get_desc (res, sig->params [i], FALSE);
2541 g_string_free (res, FALSE);
2546 * mono_marshal_get_string_encoding:
2548 * Return the string encoding which should be used for a given parameter.
2550 static MonoMarshalNative
2551 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2553 /* First try the parameter marshal info */
2555 if (spec->native == MONO_NATIVE_LPARRAY) {
2556 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2557 return spec->data.array_data.elem_type;
2560 return spec->native;
2564 return MONO_NATIVE_LPSTR;
2566 /* Then try the method level marshal info */
2567 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2568 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2569 return MONO_NATIVE_LPSTR;
2570 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2571 return MONO_NATIVE_LPWSTR;
2572 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2573 #ifdef PLATFORM_WIN32
2574 return MONO_NATIVE_LPWSTR;
2576 return MONO_NATIVE_LPSTR;
2579 return MONO_NATIVE_LPSTR;
2583 static MonoMarshalConv
2584 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2586 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2589 case MONO_NATIVE_LPWSTR:
2590 return MONO_MARSHAL_CONV_STR_LPWSTR;
2591 case MONO_NATIVE_LPSTR:
2592 return MONO_MARSHAL_CONV_STR_LPSTR;
2593 case MONO_NATIVE_LPTSTR:
2594 return MONO_MARSHAL_CONV_STR_LPTSTR;
2595 case MONO_NATIVE_BSTR:
2596 return MONO_MARSHAL_CONV_STR_BSTR;
2602 static MonoMarshalConv
2603 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2605 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2608 case MONO_NATIVE_LPWSTR:
2609 return MONO_MARSHAL_CONV_SB_LPWSTR;
2611 case MONO_NATIVE_LPSTR:
2612 return MONO_MARSHAL_CONV_SB_LPSTR;
2614 case MONO_NATIVE_LPTSTR:
2615 return MONO_MARSHAL_CONV_SB_LPTSTR;
2622 static MonoMarshalConv
2623 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2625 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2630 case MONO_NATIVE_LPWSTR:
2632 return MONO_MARSHAL_CONV_LPWSTR_STR;
2633 case MONO_NATIVE_LPSTR:
2634 return MONO_MARSHAL_CONV_LPSTR_STR;
2635 case MONO_NATIVE_LPTSTR:
2636 return MONO_MARSHAL_CONV_LPTSTR_STR;
2637 case MONO_NATIVE_BSTR:
2638 return MONO_MARSHAL_CONV_BSTR_STR;
2644 static MonoMarshalConv
2645 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2647 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2652 case MONO_NATIVE_LPWSTR:
2654 * mono_string_builder_to_utf16 does not allocate a
2655 * new buffer, so no need to free it.
2658 return MONO_MARSHAL_CONV_LPWSTR_SB;
2659 case MONO_NATIVE_LPSTR:
2660 return MONO_MARSHAL_CONV_LPSTR_SB;
2662 case MONO_NATIVE_LPTSTR:
2663 return MONO_MARSHAL_CONV_LPTSTR_SB;
2671 * Return whenever a field of a native structure or an array member needs to
2675 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2677 MonoMarshalNative encoding;
2678 MonoMarshalConv conv;
2681 case MONO_TYPE_VALUETYPE:
2682 /* FIXME: Optimize this */
2684 case MONO_TYPE_OBJECT:
2685 case MONO_TYPE_CLASS:
2686 if (t->data.klass == mono_defaults.stringbuilder_class) {
2688 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2692 case MONO_TYPE_STRING:
2693 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2694 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2700 static inline MonoMethod*
2701 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2705 mono_marshal_lock ();
2706 res = g_hash_table_lookup (cache, key);
2707 mono_marshal_unlock ();
2711 /* Create the method from the builder and place it in the cache */
2712 static inline MonoMethod*
2713 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2714 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2719 mono_marshal_lock ();
2720 res = g_hash_table_lookup (cache, key);
2721 mono_marshal_unlock ();
2724 newm = mono_mb_create_method (mb, sig, max_stack);
2725 mono_marshal_lock ();
2726 res = g_hash_table_lookup (cache, key);
2729 g_hash_table_insert (cache, key, res);
2730 g_hash_table_insert (wrapper_hash, res, key);
2731 mono_marshal_unlock ();
2733 mono_marshal_unlock ();
2734 mono_free_method (newm);
2742 static inline MonoMethod*
2743 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2745 MonoMethod *res = NULL;
2746 MonoRemotingMethods *wrps;
2748 mono_marshal_lock ();
2749 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2752 switch (wrapper_type) {
2753 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2754 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2755 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2756 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2760 /* it is important to do the unlock after the load from wrps, since in
2761 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2762 * to take the loader lock and some other thread may set the fields.
2764 mono_marshal_unlock ();
2768 /* Create the method from the builder and place it in the cache */
2769 static inline MonoMethod*
2770 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2771 MonoMethodSignature *sig, int max_stack)
2773 MonoMethod **res = NULL;
2774 MonoRemotingMethods *wrps;
2775 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2777 mono_marshal_lock ();
2778 wrps = g_hash_table_lookup (cache, key);
2780 wrps = g_new0 (MonoRemotingMethods, 1);
2781 g_hash_table_insert (cache, key, wrps);
2784 switch (mb->method->wrapper_type) {
2785 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2786 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2787 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2788 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2789 default: g_assert_not_reached (); break;
2791 mono_marshal_unlock ();
2795 newm = mono_mb_create_method (mb, sig, max_stack);
2797 mono_marshal_lock ();
2800 g_hash_table_insert (wrapper_hash, *res, key);
2801 mono_marshal_unlock ();
2803 mono_marshal_unlock ();
2804 mono_free_method (newm);
2812 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2816 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2819 mono_marshal_lock ();
2820 res = g_hash_table_lookup (wrapper_hash, wrapper);
2821 mono_marshal_unlock ();
2826 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2828 MonoMethodSignature *sig;
2829 MonoMethodBuilder *mb;
2835 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2836 !strcmp (method->name, "BeginInvoke"));
2838 sig = signature_no_pinvoke (method);
2840 cache = method->klass->image->delegate_begin_invoke_cache;
2841 if ((res = mono_marshal_find_in_cache (cache, sig)))
2844 g_assert (sig->hasthis);
2846 name = mono_signature_to_name (sig, "begin_invoke");
2847 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2850 mb->method->save_lmf = 1;
2852 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2854 mono_mb_emit_ldarg (mb, 0);
2855 mono_mb_emit_ldloc (mb, params_var);
2856 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2857 emit_thread_interrupt_checkpoint (mb);
2858 mono_mb_emit_byte (mb, CEE_RET);
2860 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2866 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2868 MonoDomain *domain = mono_domain_get ();
2869 MonoAsyncResult *ares;
2870 MonoMethod *method = NULL;
2871 MonoMethodSignature *sig;
2872 MonoMethodMessage *msg;
2873 MonoObject *res, *exc;
2874 MonoArray *out_args;
2877 g_assert (delegate);
2879 if (!delegate->method_info) {
2880 g_assert (delegate->method);
2881 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2884 if (!delegate->method_info || !delegate->method_info->method)
2885 g_assert_not_reached ();
2887 klass = delegate->object.vtable->klass;
2889 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2890 g_assert (method != NULL);
2892 sig = signature_no_pinvoke (method);
2894 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2896 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2899 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
2900 mono_raise_exception (mono_get_exception_invalid_operation (
2901 "The IAsyncResult object provided does not match this delegate."));
2905 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2906 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2907 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2908 mono_message_init (domain, msg, delegate->method_info, NULL);
2909 msg->call_type = CallType_EndInvoke;
2910 MONO_OBJECT_SETREF (msg, async_result, ares);
2911 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2913 res = mono_thread_pool_finish (ares, &out_args, &exc);
2917 if (((MonoException*)exc)->stack_trace) {
2918 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2920 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2922 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2925 mono_raise_exception ((MonoException*)exc);
2928 mono_method_return_message_restore (method, params, out_args);
2933 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2935 MonoType *t = mono_type_get_underlying_type (return_type);
2937 if (return_type->byref)
2938 return_type = &mono_defaults.int_class->byval_arg;
2941 case MONO_TYPE_VOID:
2942 g_assert_not_reached ();
2945 case MONO_TYPE_STRING:
2946 case MONO_TYPE_CLASS:
2947 case MONO_TYPE_OBJECT:
2948 case MONO_TYPE_ARRAY:
2949 case MONO_TYPE_SZARRAY:
2953 case MONO_TYPE_BOOLEAN:
2956 case MONO_TYPE_CHAR:
2966 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2967 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2969 case MONO_TYPE_GENERICINST:
2970 if (!mono_type_generic_inst_is_valuetype (return_type))
2973 case MONO_TYPE_VALUETYPE: {
2974 MonoClass *klass = mono_class_from_mono_type (return_type);
2975 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2976 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2980 g_warning ("type 0x%x not handled", return_type->type);
2981 g_assert_not_reached ();
2984 mono_mb_emit_byte (mb, CEE_RET);
2988 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2990 MonoMethodSignature *sig;
2991 MonoMethodBuilder *mb;
2997 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2998 !strcmp (method->name, "EndInvoke"));
3000 sig = signature_no_pinvoke (method);
3002 cache = method->klass->image->delegate_end_invoke_cache;
3003 if ((res = mono_marshal_find_in_cache (cache, sig)))
3006 g_assert (sig->hasthis);
3008 name = mono_signature_to_name (sig, "end_invoke");
3009 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3012 mb->method->save_lmf = 1;
3014 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3016 mono_mb_emit_ldarg (mb, 0);
3017 mono_mb_emit_ldloc (mb, params_var);
3018 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3019 emit_thread_interrupt_checkpoint (mb);
3021 if (sig->ret->type == MONO_TYPE_VOID) {
3022 mono_mb_emit_byte (mb, CEE_POP);
3023 mono_mb_emit_byte (mb, CEE_RET);
3025 mono_mb_emit_restore_result (mb, sig->ret);
3027 res = mono_mb_create_and_cache (cache, sig,
3028 mb, sig, sig->param_count + 16);
3035 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3037 MonoMethodMessage *msg;
3038 MonoTransparentProxy *this;
3039 MonoObject *res, *exc;
3040 MonoArray *out_args;
3042 this = *((MonoTransparentProxy **)params [0]);
3045 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3047 /* skip the this pointer */
3050 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3053 MonoMethodSignature *sig = mono_method_signature (method);
3054 int count = sig->param_count;
3055 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3057 for (i=0; i<count; i++) {
3058 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3059 if (class->valuetype) {
3060 if (sig->params [i]->byref)
3061 mparams[i] = *((gpointer *)params [i]);
3063 mparams[i] = params [i];
3065 mparams[i] = *((gpointer**)params [i]);
3069 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3072 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3074 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3077 mono_raise_exception ((MonoException *)exc);
3079 mono_method_return_message_restore (method, params, out_args);
3085 * cominterop_get_native_wrapper_adjusted:
3086 * @method: managed COM Interop method
3088 * Returns: the generated method to call with signature matching
3089 * the unmanaged COM Method signature
3092 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3095 MonoMethodBuilder *mb_native;
3096 MonoMarshalSpec **mspecs;
3097 MonoMethodSignature *sig, *sig_native;
3098 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3101 sig = mono_method_signature (method);
3103 // create unmanaged wrapper
3104 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3105 sig_native = cominterop_method_signature (method);
3107 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3108 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3110 mono_method_get_marshal_info (method, mspecs);
3112 // move managed args up one
3113 for (i = sig->param_count; i >= 1; i--)
3114 mspecs[i+1] = mspecs[i];
3116 // first arg is IntPtr for interface
3119 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3120 // move return spec to last param
3121 if (!MONO_TYPE_IS_VOID (sig->ret))
3122 mspecs[sig_native->param_count] = mspecs[0];
3127 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, TRUE);
3129 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3131 mono_mb_free (mb_native);
3133 for (i = sig_native->param_count; i >= 0; i--)
3135 mono_metadata_free_marshal_spec (mspecs [i]);
3142 * cominterop_get_native_wrapper:
3143 * @method: managed method
3145 * Returns: the generated method to call
3148 cominterop_get_native_wrapper (MonoMethod *method)
3152 MonoMethodBuilder *mb;
3153 MonoMethodSignature *sig, *csig;
3157 cache = method->klass->image->cominterop_wrapper_cache;
3158 if ((res = mono_marshal_find_in_cache (cache, method)))
3161 mono_init_com_types ();
3163 sig = mono_method_signature (method);
3164 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3166 /* if method klass is import, that means method
3167 * is really a com call. let interop system emit it.
3169 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3170 /* FIXME: we have to call actual class .ctor
3171 * instead of just __ComObject .ctor.
3173 if (!strcmp(method->name, ".ctor")) {
3174 static MonoMethod *ctor = NULL;
3177 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3178 mono_mb_emit_ldarg (mb, 0);
3179 mono_mb_emit_managed_call (mb, ctor, NULL);
3180 mono_mb_emit_byte (mb, CEE_RET);
3183 static MonoMethod * ThrowExceptionForHR = NULL;
3184 MonoMethod *adjusted_method;
3188 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3190 // add local variables
3191 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3192 if (!MONO_TYPE_IS_VOID (sig->ret))
3193 retval = mono_mb_add_local (mb, sig->ret);
3195 // get the type for the interface the method is defined on
3196 // and then get the underlying COM interface for that type
3197 mono_mb_emit_ldarg (mb, 0);
3198 mono_mb_emit_ptr (mb, method);
3199 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3200 mono_mb_emit_icon (mb, TRUE);
3201 mono_mb_emit_icall (mb, cominterop_get_interface);
3202 mono_mb_emit_stloc (mb, ptr_this);
3204 // arg 1 is unmanaged this pointer
3205 mono_mb_emit_ldloc (mb, ptr_this);
3208 for (i = 1; i <= sig->param_count; i++)
3209 mono_mb_emit_ldarg (mb, i);
3211 // push managed return value as byref last argument
3212 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3213 mono_mb_emit_ldloc_addr (mb, retval);
3215 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3216 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3218 if (!preserve_sig) {
3219 if (!ThrowExceptionForHR)
3220 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3221 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3223 // load return value managed is expecting
3224 if (!MONO_TYPE_IS_VOID (sig->ret))
3225 mono_mb_emit_ldloc (mb, retval);
3228 mono_mb_emit_byte (mb, CEE_RET);
3233 /* Does this case ever get hit? */
3235 char *msg = g_strdup ("non imported interfaces on \
3236 imported classes is not yet implemented.");
3237 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3239 csig = signature_dup (method->klass->image, sig);
3241 res = mono_mb_create_and_cache (cache, method,
3242 mb, csig, csig->param_count + 16);
3248 * cominterop_get_invoke:
3249 * @method: managed method
3251 * Returns: the generated method that calls the underlying __ComObject
3252 * rather than the proxy object.
3255 cominterop_get_invoke (MonoMethod *method)
3257 MonoMethodSignature *sig;
3258 MonoMethodBuilder *mb;
3261 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3265 if ((res = mono_marshal_find_in_cache (cache, method)))
3268 sig = signature_no_pinvoke (method);
3270 /* we cant remote methods without this pointer */
3274 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3276 /* get real proxy object, which is a ComInteropProxy in this case*/
3277 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3278 mono_mb_emit_ldarg (mb, 0);
3279 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3280 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3282 /* load the RCW from the ComInteropProxy*/
3283 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3284 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3286 /* load args and make the call on the RCW */
3287 for (i = 1; i <= sig->param_count; i++)
3288 mono_mb_emit_ldarg (mb, i);
3290 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3291 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3292 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3295 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3296 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3298 mono_mb_emit_op (mb, CEE_CALL, method);
3301 if (!strcmp(method->name, ".ctor")) {
3302 static MonoClass *com_interop_proxy_class = NULL;
3303 static MonoMethod *cache_proxy = NULL;
3305 if (!com_interop_proxy_class)
3306 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3308 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3310 mono_mb_emit_ldarg (mb, 0);
3311 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3313 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3316 emit_thread_interrupt_checkpoint (mb);
3318 mono_mb_emit_byte (mb, CEE_RET);
3320 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3325 /* Maps a managed object to its unmanaged representation
3326 * i.e. it's COM Callable Wrapper (CCW).
3330 static GHashTable* ccw_hash = NULL;
3332 /* Maps a CCW interface to it's containing CCW.
3333 * Note that a CCW support many interfaces.
3335 * Value: MonoCCWInterface*
3337 static GHashTable* ccw_interface_hash = NULL;
3339 /* Maps the IUnknown value of a RCW to
3340 * it's MonoComInteropProxy*.
3344 static GHashTable* rcw_hash = NULL;
3347 mono_marshal_get_remoting_invoke (MonoMethod *method)
3349 MonoMethodSignature *sig;
3350 MonoMethodBuilder *mb;
3356 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3359 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3360 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3361 return cominterop_get_invoke(method);
3363 sig = signature_no_pinvoke (method);
3365 /* we cant remote methods without this pointer */
3369 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3372 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3373 mb->method->save_lmf = 1;
3375 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3377 mono_mb_emit_ptr (mb, method);
3378 mono_mb_emit_ldloc (mb, params_var);
3379 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3380 emit_thread_interrupt_checkpoint (mb);
3382 if (sig->ret->type == MONO_TYPE_VOID) {
3383 mono_mb_emit_byte (mb, CEE_POP);
3384 mono_mb_emit_byte (mb, CEE_RET);
3386 mono_mb_emit_restore_result (mb, sig->ret);
3389 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3395 /* mono_get_xdomain_marshal_type()
3396 * Returns the kind of marshalling that a type needs for cross domain calls.
3398 static MonoXDomainMarshalType
3399 mono_get_xdomain_marshal_type (MonoType *t)
3402 case MONO_TYPE_VOID:
3403 g_assert_not_reached ();
3407 case MONO_TYPE_BOOLEAN:
3410 case MONO_TYPE_CHAR:
3417 return MONO_MARSHAL_NONE;
3418 case MONO_TYPE_STRING:
3419 return MONO_MARSHAL_COPY;
3420 case MONO_TYPE_ARRAY:
3421 case MONO_TYPE_SZARRAY: {
3422 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3423 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3424 return MONO_MARSHAL_COPY;
3429 return MONO_MARSHAL_SERIALIZE;
3433 /* mono_marshal_xdomain_copy_value
3434 * Makes a copy of "val" suitable for the current domain.
3437 mono_marshal_xdomain_copy_value (MonoObject *val)
3440 if (val == NULL) return NULL;
3442 domain = mono_domain_get ();
3444 switch (mono_object_class (val)->byval_arg.type) {
3445 case MONO_TYPE_VOID:
3446 g_assert_not_reached ();
3450 case MONO_TYPE_BOOLEAN:
3453 case MONO_TYPE_CHAR:
3459 case MONO_TYPE_R8: {
3460 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3462 case MONO_TYPE_STRING: {
3463 MonoString *str = (MonoString *) val;
3464 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3466 case MONO_TYPE_ARRAY:
3467 case MONO_TYPE_SZARRAY: {
3469 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3470 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3471 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3472 if (mt == MONO_MARSHAL_COPY) {
3473 int i, len = mono_array_length (acopy);
3474 for (i = 0; i < len; i++) {
3475 MonoObject *item = mono_array_get (acopy, gpointer, i);
3476 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3479 return (MonoObject *) acopy;
3483 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3484 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3485 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3486 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3487 newsb->length = oldsb->length;
3488 newsb->max_capacity = (gint32)0x7fffffff;
3489 return (MonoObject *) newsb;
3494 /* mono_marshal_xdomain_copy_out_value()
3495 * Copies the contents of the src instance into the dst instance. src and dst
3496 * must have the same type, and if they are arrays, the same size.
3499 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3501 if (src == NULL || dst == NULL) return;
3503 g_assert (mono_object_class (src) == mono_object_class (dst));
3505 switch (mono_object_class (src)->byval_arg.type) {
3506 case MONO_TYPE_ARRAY:
3507 case MONO_TYPE_SZARRAY: {
3508 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3509 if (mt == MONO_MARSHAL_SERIALIZE) return;
3510 if (mt == MONO_MARSHAL_COPY) {
3511 int i, len = mono_array_length ((MonoArray *)dst);
3512 for (i = 0; i < len; i++) {
3513 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3514 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3517 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3523 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3524 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3525 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3527 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)));
3528 dst_sb->cached_str = NULL;
3529 dst_sb->length = src_sb->length;
3534 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3536 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3537 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3541 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3543 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3546 /* mono_marshal_supports_fast_xdomain()
3547 * Returns TRUE if the method can use the fast xdomain wrapper.
3550 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3552 return !method->klass->contextbound &&
3553 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3557 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3559 MonoDomain *current_domain = mono_domain_get ();
3560 MonoDomain *domain = mono_domain_get_by_id (id);
3562 if (!domain || !mono_domain_set (domain, FALSE))
3563 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3566 mono_thread_push_appdomain_ref (domain);
3568 mono_thread_pop_appdomain_ref ();
3570 return current_domain->domain_id;
3574 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3576 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3579 /* mono_marshal_emit_load_domain_method ()
3580 * Loads into the stack a pointer to the code of the provided method for
3581 * the current domain.
3584 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3586 /* We need a pointer to the method for the running domain (not the domain
3587 * that compiles the method).
3589 mono_mb_emit_ptr (mb, method);
3590 mono_mb_emit_icall (mb, mono_compile_method);
3593 /* mono_marshal_check_domain_image ()
3594 * Returns TRUE if the image is loaded in the specified
3595 * application domain.
3598 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3603 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3607 mono_domain_assemblies_lock (domain);
3608 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3610 if (ass->image == image)
3613 mono_domain_assemblies_unlock (domain);
3618 /* mono_marshal_get_xappdomain_dispatch ()
3619 * Generates a method that dispatches a method call from another domain into
3620 * the current domain.
3623 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3625 MonoMethodSignature *sig, *csig;
3626 MonoMethodBuilder *mb;
3628 int i, j, param_index, copy_locals_base;
3629 MonoClass *ret_class = NULL;
3630 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3631 MonoExceptionClause *main_clause;
3632 MonoMethodHeader *header;
3634 gboolean copy_return;
3636 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3639 sig = mono_method_signature (method);
3640 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3643 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3644 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3645 csig->params [j++] = &byte_array_class->this_arg;
3646 csig->params [j++] = &byte_array_class->this_arg;
3647 for (i = 0; i < sig->param_count; i++) {
3648 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3649 csig->params [j++] = sig->params [i];
3652 csig->ret = sig->ret;
3654 csig->ret = &mono_defaults.void_class->byval_arg;
3656 csig->hasthis = FALSE;
3658 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3659 mb->method->save_lmf = 1;
3663 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3664 if (complex_count > 0)
3665 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3666 if (sig->ret->type != MONO_TYPE_VOID) {
3667 loc_return = mono_mb_add_local (mb, sig->ret);
3668 ret_class = mono_class_from_mono_type (sig->ret);
3673 mono_loader_lock ();
3674 main_clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
3675 mono_loader_unlock ();
3676 main_clause->try_offset = mono_mb_get_label (mb);
3678 /* Clean the call context */
3680 mono_mb_emit_byte (mb, CEE_LDNULL);
3681 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3682 mono_mb_emit_byte (mb, CEE_POP);
3684 /* Deserialize call data */
3686 mono_mb_emit_ldarg (mb, 1);
3687 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3688 mono_mb_emit_byte (mb, CEE_DUP);
3689 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3691 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3692 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3694 if (complex_count > 0)
3695 mono_mb_emit_stloc (mb, loc_array);
3697 mono_mb_emit_byte (mb, CEE_POP);
3699 mono_mb_patch_short_branch (mb, pos);
3701 /* Get the target object */
3703 mono_mb_emit_ldarg (mb, 0);
3704 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3706 /* Load the arguments */
3708 copy_locals_base = mb->locals;
3709 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3711 for (i = 0; i < sig->param_count; i++) {
3712 MonoType *pt = sig->params [i];
3713 MonoClass *pclass = mono_class_from_mono_type (pt);
3714 switch (marshal_types [i]) {
3715 case MONO_MARSHAL_SERIALIZE: {
3716 /* take the value from the serialized array */
3717 mono_mb_emit_ldloc (mb, loc_array);
3718 mono_mb_emit_icon (mb, j++);
3720 if (pclass->valuetype) {
3721 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3722 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3724 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3727 if (pclass->valuetype) {
3728 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3729 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3730 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3732 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3733 if (pclass != mono_defaults.object_class) {
3734 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3740 case MONO_MARSHAL_COPY_OUT: {
3741 /* Keep a local copy of the value since we need to copy it back after the call */
3742 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3743 mono_mb_emit_ldarg (mb, param_index++);
3744 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3745 mono_mb_emit_byte (mb, CEE_DUP);
3746 mono_mb_emit_stloc (mb, copy_local);
3749 case MONO_MARSHAL_COPY: {
3750 mono_mb_emit_ldarg (mb, param_index);
3752 mono_mb_emit_byte (mb, CEE_DUP);
3753 mono_mb_emit_byte (mb, CEE_DUP);
3754 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3755 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3756 mono_mb_emit_byte (mb, CEE_STIND_REF);
3758 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3763 case MONO_MARSHAL_NONE:
3764 mono_mb_emit_ldarg (mb, param_index++);
3769 /* Make the call to the real object */
3771 emit_thread_force_interrupt_checkpoint (mb);
3773 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3775 if (sig->ret->type != MONO_TYPE_VOID)
3776 mono_mb_emit_stloc (mb, loc_return);
3778 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3782 for (i = 0; i < sig->param_count; i++) {
3783 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3784 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3785 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3786 mono_mb_emit_ldarg (mb, param_index);
3787 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3792 /* Serialize the return values */
3794 if (complex_out_count > 0) {
3795 /* Reset parameters in the array that don't need to be serialized back */
3797 for (i = 0; i < sig->param_count; i++) {
3798 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3799 if (!sig->params [i]->byref) {
3800 mono_mb_emit_ldloc (mb, loc_array);
3801 mono_mb_emit_icon (mb, j);
3802 mono_mb_emit_byte (mb, CEE_LDNULL);
3803 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3808 /* Add the return value to the array */
3810 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3811 mono_mb_emit_ldloc (mb, loc_array);
3812 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3813 mono_mb_emit_ldloc (mb, loc_return);
3814 if (ret_class->valuetype) {
3815 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3817 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3822 mono_mb_emit_ldarg (mb, 1);
3823 mono_mb_emit_ldloc (mb, loc_array);
3824 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3825 mono_mb_emit_byte (mb, CEE_STIND_REF);
3826 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3827 mono_mb_emit_ldarg (mb, 1);
3828 mono_mb_emit_ldloc (mb, loc_return);
3829 if (ret_class->valuetype) {
3830 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3832 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3833 mono_mb_emit_byte (mb, CEE_STIND_REF);
3835 mono_mb_emit_ldarg (mb, 1);
3836 mono_mb_emit_byte (mb, CEE_LDNULL);
3837 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3838 mono_mb_emit_byte (mb, CEE_STIND_REF);
3841 mono_mb_emit_ldarg (mb, 2);
3842 mono_mb_emit_byte (mb, CEE_LDNULL);
3843 mono_mb_emit_byte (mb, CEE_STIND_REF);
3844 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3846 /* Main exception catch */
3847 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3848 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3849 main_clause->data.catch_class = mono_defaults.object_class;
3852 main_clause->handler_offset = mono_mb_get_label (mb);
3853 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3854 mono_mb_emit_stloc (mb, loc_serialized_exc);
3855 mono_mb_emit_ldarg (mb, 2);
3856 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3857 mono_mb_emit_byte (mb, CEE_STIND_REF);
3858 mono_mb_emit_branch (mb, CEE_LEAVE);
3859 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3862 mono_mb_patch_branch (mb, pos_leave);
3865 mono_mb_emit_ldloc (mb, loc_return);
3867 mono_mb_emit_byte (mb, CEE_RET);
3869 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3872 header = ((MonoMethodNormal *)res)->header;
3873 header->num_clauses = 1;
3874 header->clauses = main_clause;
3879 /* mono_marshal_get_xappdomain_invoke ()
3880 * Generates a fast remoting wrapper for cross app domain calls.
3883 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3885 MonoMethodSignature *sig;
3886 MonoMethodBuilder *mb;
3888 int i, j, complex_count, complex_out_count, copy_locals_base;
3890 MonoClass *ret_class = NULL;
3891 MonoMethod *xdomain_method;
3892 int ret_marshal_type = MONO_MARSHAL_NONE;
3893 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3894 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3895 int pos, pos_dispatch, pos_noex;
3896 gboolean copy_return = FALSE;
3900 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3903 /* we cant remote methods without this pointer */
3904 if (!mono_method_signature (method)->hasthis)
3907 if (!mono_marshal_supports_fast_xdomain (method))
3908 return mono_marshal_get_remoting_invoke (method);
3910 mono_remoting_marshal_init ();
3912 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3915 sig = signature_no_pinvoke (method);
3917 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3918 mb->method->save_lmf = 1;
3920 /* Count the number of parameters that need to be serialized */
3922 marshal_types = alloca (sizeof (int) * sig->param_count);
3923 complex_count = complex_out_count = 0;
3924 for (i = 0; i < sig->param_count; i++) {
3925 MonoType *ptype = sig->params[i];
3926 int mt = mono_get_xdomain_marshal_type (ptype);
3928 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3929 * the copy will be made by reusing the original object instance
3931 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3932 mt = MONO_MARSHAL_COPY_OUT;
3933 else if (mt == MONO_MARSHAL_SERIALIZE) {
3935 if (ptype->byref) complex_out_count++;
3937 marshal_types [i] = mt;
3940 if (sig->ret->type != MONO_TYPE_VOID) {
3941 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3942 ret_class = mono_class_from_mono_type (sig->ret);
3943 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3948 if (complex_count > 0)
3949 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3950 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3951 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3953 loc_return = mono_mb_add_local (mb, sig->ret);
3954 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3955 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3956 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3957 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3959 /* Save thread domain data */
3961 mono_mb_emit_icall (mb, mono_context_get);
3962 mono_mb_emit_byte (mb, CEE_DUP);
3963 mono_mb_emit_stloc (mb, loc_context);
3965 /* If the thread is not running in the default context, it needs to go
3966 * through the whole remoting sink, since the context is going to change
3968 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3969 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3971 /* Another case in which the fast path can't be used: when the target domain
3972 * has a different image for the same assembly.
3975 /* Get the target domain id */
3977 mono_mb_emit_ldarg (mb, 0);
3978 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3979 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3980 mono_mb_emit_byte (mb, CEE_DUP);
3981 mono_mb_emit_stloc (mb, loc_real_proxy);
3983 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3984 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3985 mono_mb_emit_stloc (mb, loc_domainid);
3987 /* Check if the target domain has the same image for the required assembly */
3989 mono_mb_emit_ldloc (mb, loc_domainid);
3990 mono_mb_emit_ptr (mb, method->klass->image);
3991 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3992 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3994 /* Use the whole remoting sink to dispatch this message */
3996 mono_mb_patch_short_branch (mb, pos);
3998 mono_mb_emit_ldarg (mb, 0);
3999 for (i = 0; i < sig->param_count; i++)
4000 mono_mb_emit_ldarg (mb, i + 1);
4002 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4003 mono_mb_emit_byte (mb, CEE_RET);
4004 mono_mb_patch_short_branch (mb, pos_dispatch);
4006 /* Create the array that will hold the parameters to be serialized */
4008 if (complex_count > 0) {
4009 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 */
4010 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4013 for (i = 0; i < sig->param_count; i++) {
4015 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4016 pclass = mono_class_from_mono_type (sig->params[i]);
4017 mono_mb_emit_byte (mb, CEE_DUP);
4018 mono_mb_emit_icon (mb, j);
4019 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4020 if (sig->params[i]->byref) {
4021 if (pclass->valuetype)
4022 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4024 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4026 if (pclass->valuetype)
4027 mono_mb_emit_op (mb, CEE_BOX, pclass);
4028 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4031 mono_mb_emit_stloc (mb, loc_array);
4033 /* Serialize parameters */
4035 mono_mb_emit_ldloc (mb, loc_array);
4036 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4037 mono_mb_emit_stloc (mb, loc_serialized_data);
4039 mono_mb_emit_byte (mb, CEE_LDNULL);
4040 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4041 mono_mb_emit_stloc (mb, loc_serialized_data);
4046 mono_mb_emit_ldloc (mb, loc_domainid);
4047 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4048 mono_marshal_emit_switch_domain (mb);
4049 mono_mb_emit_stloc (mb, loc_old_domainid);
4051 /* Load the arguments */
4053 mono_mb_emit_ldloc (mb, loc_real_proxy);
4054 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4055 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4057 copy_locals_base = mb->locals;
4058 for (i = 0; i < sig->param_count; i++) {
4059 switch (marshal_types [i]) {
4060 case MONO_MARSHAL_SERIALIZE:
4062 case MONO_MARSHAL_COPY: {
4063 mono_mb_emit_ldarg (mb, i+1);
4064 if (sig->params [i]->byref) {
4065 /* make a local copy of the byref parameter. The real parameter
4066 * will be updated after the xdomain call
4068 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4069 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4070 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4071 mono_mb_emit_stloc (mb, copy_local);
4072 mono_mb_emit_ldloc_addr (mb, copy_local);
4076 case MONO_MARSHAL_COPY_OUT:
4077 case MONO_MARSHAL_NONE:
4078 mono_mb_emit_ldarg (mb, i+1);
4083 /* Make the call to the invoke wrapper in the target domain */
4085 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4086 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4087 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4090 mono_mb_emit_stloc (mb, loc_return);
4094 mono_mb_emit_ldloc (mb, loc_old_domainid);
4095 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4096 mono_marshal_emit_switch_domain (mb);
4097 mono_mb_emit_byte (mb, CEE_POP);
4099 /* Restore thread domain data */
4101 mono_mb_emit_ldloc (mb, loc_context);
4102 mono_mb_emit_icall (mb, mono_context_set);
4104 /* if (loc_serialized_exc != null) ... */
4106 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4107 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4109 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4110 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4111 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4112 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4113 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4114 mono_mb_emit_byte (mb, CEE_THROW);
4115 mono_mb_patch_short_branch (mb, pos_noex);
4117 /* copy back non-serialized output parameters */
4120 for (i = 0; i < sig->param_count; i++) {
4121 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4122 mono_mb_emit_ldarg (mb, i + 1);
4123 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4124 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4125 mono_mb_emit_byte (mb, CEE_STIND_REF);
4128 /* Deserialize out parameters */
4130 if (complex_out_count > 0) {
4131 mono_mb_emit_ldloc (mb, loc_serialized_data);
4132 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4133 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4134 mono_mb_emit_stloc (mb, loc_array);
4136 /* Copy back output parameters and return type */
4139 for (i = 0; i < sig->param_count; i++) {
4140 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4141 if (sig->params[i]->byref) {
4142 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4143 mono_mb_emit_ldarg (mb, i + 1);
4144 mono_mb_emit_ldloc (mb, loc_array);
4145 mono_mb_emit_icon (mb, j);
4146 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4147 if (pclass->valuetype) {
4148 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4149 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4150 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4152 if (pclass != mono_defaults.object_class)
4153 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4154 mono_mb_emit_byte (mb, CEE_STIND_REF);
4160 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4161 mono_mb_emit_ldloc (mb, loc_array);
4162 mono_mb_emit_icon (mb, complex_count);
4163 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4164 if (ret_class->valuetype) {
4165 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4166 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4169 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4170 mono_mb_emit_ldloc (mb, loc_serialized_data);
4171 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4172 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4173 if (ret_class->valuetype) {
4174 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4175 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4176 } else if (ret_class != mono_defaults.object_class) {
4177 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4180 mono_mb_emit_ldloc (mb, loc_serialized_data);
4181 mono_mb_emit_byte (mb, CEE_DUP);
4182 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4183 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4185 mono_mb_patch_short_branch (mb, pos);
4186 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4187 mono_mb_emit_byte (mb, CEE_POP);
4191 mono_mb_emit_ldloc (mb, loc_return);
4192 if (ret_marshal_type == MONO_MARSHAL_COPY)
4193 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4196 mono_mb_emit_byte (mb, CEE_RET);
4198 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4205 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4207 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4208 return mono_marshal_get_xappdomain_invoke (method);
4209 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4210 return cominterop_get_invoke (method);
4212 return mono_marshal_get_remoting_invoke (method);
4215 G_GNUC_UNUSED static gpointer
4216 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4218 if (rp->target_domain_id != -1)
4219 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4221 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4225 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4227 MonoMethodSignature *sig;
4228 MonoMethodBuilder *mb;
4229 MonoMethod *res, *native;
4230 int i, pos, pos_rem;
4234 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4237 /* we cant remote methods without this pointer */
4238 g_assert (mono_method_signature (method)->hasthis);
4240 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4243 sig = signature_no_pinvoke (method);
4245 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4247 for (i = 0; i <= sig->param_count; i++)
4248 mono_mb_emit_ldarg (mb, i);
4250 mono_mb_emit_ldarg (mb, 0);
4251 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4253 if (mono_marshal_supports_fast_xdomain (method)) {
4254 mono_mb_emit_ldarg (mb, 0);
4255 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4257 /* wrapper for cross app domain calls */
4258 native = mono_marshal_get_xappdomain_invoke (method);
4259 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4260 mono_mb_emit_byte (mb, CEE_RET);
4262 mono_mb_patch_branch (mb, pos_rem);
4264 /* wrapper for normal remote calls */
4265 native = mono_marshal_get_remoting_invoke (method);
4266 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4267 mono_mb_emit_byte (mb, CEE_RET);
4270 mono_mb_patch_branch (mb, pos);
4271 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4272 mono_mb_emit_byte (mb, CEE_RET);
4274 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4282 MonoMethodSignature *sig;
4284 } SignatureMethodPair;
4287 signature_method_pair_hash (gconstpointer data)
4289 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4291 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4295 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4297 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4301 free_signature_method_pair (SignatureMethodPair *pair)
4307 * the returned method invokes all methods in a multicast delegate.
4310 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4312 MonoMethodSignature *sig, *static_sig;
4314 MonoMethodBuilder *mb;
4315 MonoMethod *res, *newm;
4317 SignatureMethodPair key;
4318 SignatureMethodPair *new_key;
4319 int local_prev, local_target;
4322 MonoMethod *target_method = NULL;
4323 gboolean callvirt = FALSE;
4326 * If the delegate target is null, and the target method is not static, a virtual
4327 * call is made to that method with the first delegate argument as this. This is
4328 * a non-documented .NET feature.
4330 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4332 target_method = del->method;
4335 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4336 !strcmp (method->name, "Invoke"));
4338 sig = signature_no_pinvoke (method);
4341 /* We need to cache the signature+method pair */
4342 mono_marshal_lock ();
4343 if (!method->klass->image->delegate_abstract_invoke_cache)
4344 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);
4345 cache = method->klass->image->delegate_abstract_invoke_cache;
4347 key.method = target_method;
4348 res = g_hash_table_lookup (cache, &key);
4349 mono_marshal_unlock ();
4353 cache = method->klass->image->delegate_invoke_cache;
4354 if ((res = mono_marshal_find_in_cache (cache, sig)))
4358 static_sig = signature_dup (method->klass->image, sig);
4359 static_sig->hasthis = 0;
4361 name = mono_signature_to_name (sig, "invoke");
4362 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4365 /* allocate local 0 (object) */
4366 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4367 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4369 g_assert (sig->hasthis);
4373 * prev.Invoke( args .. );
4374 * return this.<target>( args .. );
4377 /* this wrapper can be used in unmanaged-managed transitions */
4378 emit_thread_interrupt_checkpoint (mb);
4380 /* get this->prev */
4381 mono_mb_emit_ldarg (mb, 0);
4382 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4383 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4384 mono_mb_emit_stloc (mb, local_prev);
4385 mono_mb_emit_ldloc (mb, local_prev);
4387 /* if prev != null */
4388 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4392 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4393 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4395 mono_mb_emit_ldloc (mb, local_prev);
4396 for (i = 0; i < sig->param_count; i++)
4397 mono_mb_emit_ldarg (mb, i + 1);
4398 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4399 if (sig->ret->type != MONO_TYPE_VOID)
4400 mono_mb_emit_byte (mb, CEE_POP);
4402 /* continued or prev == null */
4403 mono_mb_patch_branch (mb, pos0);
4405 /* get this->target */
4406 mono_mb_emit_ldarg (mb, 0);
4407 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4408 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4409 mono_mb_emit_stloc (mb, local_target);
4411 /* if target != null */
4412 mono_mb_emit_ldloc (mb, local_target);
4413 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4415 /* then call this->method_ptr nonstatic */
4418 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4420 mono_mb_emit_ldloc (mb, local_target);
4421 for (i = 0; i < sig->param_count; ++i)
4422 mono_mb_emit_ldarg (mb, i + 1);
4423 mono_mb_emit_ldarg (mb, 0);
4424 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4425 mono_mb_emit_byte (mb, CEE_LDIND_I );
4426 mono_mb_emit_op (mb, CEE_CALLI, sig);
4428 mono_mb_emit_byte (mb, CEE_RET);
4431 /* else [target == null] call this->method_ptr static */
4432 mono_mb_patch_branch (mb, pos0);
4435 mono_mb_emit_ldarg (mb, 1);
4436 mono_mb_emit_op (mb, CEE_CASTCLASS, target_method->klass);
4437 for (i = 1; i < sig->param_count; ++i)
4438 mono_mb_emit_ldarg (mb, i + 1);
4439 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4441 for (i = 0; i < sig->param_count; ++i)
4442 mono_mb_emit_ldarg (mb, i + 1);
4443 mono_mb_emit_ldarg (mb, 0);
4444 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4445 mono_mb_emit_byte (mb, CEE_LDIND_I );
4446 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4449 mono_mb_emit_byte (mb, CEE_RET);
4452 // From mono_mb_create_and_cache
4453 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4454 mono_marshal_lock ();
4455 res = g_hash_table_lookup (cache, &key);
4458 new_key = g_new0 (SignatureMethodPair, 1);
4460 new_key->method = target_method;
4461 g_hash_table_insert (cache, new_key, res);
4462 g_hash_table_insert (wrapper_hash, res, new_key);
4463 mono_marshal_unlock ();
4465 mono_marshal_unlock ();
4466 mono_free_method (newm);
4469 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4477 * signature_dup_add_this:
4479 * Make a copy of @sig, adding an explicit this argument.
4481 static MonoMethodSignature*
4482 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4484 MonoMethodSignature *res;
4487 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4488 memcpy (res, sig, sizeof (MonoMethodSignature));
4489 res->param_count = sig->param_count + 1;
4490 res->hasthis = FALSE;
4491 for (i = sig->param_count - 1; i >= 0; i --)
4492 res->params [i + 1] = sig->params [i];
4493 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4499 MonoMethodSignature *ctor_sig;
4500 MonoMethodSignature *sig;
4503 /* protected by the marshal lock, contains CtorSigPair pointers */
4504 static GSList *strsig_list = NULL;
4506 static MonoMethodSignature *
4507 lookup_string_ctor_signature (MonoMethodSignature *sig)
4509 MonoMethodSignature *callsig;
4513 mono_marshal_lock ();
4515 for (item = strsig_list; item; item = item->next) {
4517 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4518 * because it is lock-free.
4520 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4525 mono_marshal_unlock ();
4529 static MonoMethodSignature *
4530 add_string_ctor_signature (MonoMethod *method)
4532 MonoMethodSignature *callsig;
4535 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4536 callsig->ret = &mono_defaults.string_class->byval_arg;
4537 cs = g_new (CtorSigPair, 1);
4539 cs->ctor_sig = mono_method_signature (method);
4541 mono_marshal_lock ();
4542 strsig_list = g_slist_prepend (strsig_list, cs);
4543 mono_marshal_unlock ();
4548 * generates IL code for the runtime invoke function
4549 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4551 * we also catch exceptions if exc != null
4554 mono_marshal_get_runtime_invoke (MonoMethod *method)
4556 MonoMethodSignature *sig, *csig, *callsig;
4557 MonoExceptionClause *clause;
4558 MonoMethodHeader *header;
4559 MonoMethodBuilder *mb;
4560 GHashTable *cache = NULL;
4561 MonoClass *target_klass;
4562 MonoMethod *res = NULL;
4563 static MonoString *string_dummy = NULL;
4564 static MonoMethodSignature *delay_abort_sig = NULL;
4565 static MonoMethodSignature *cctor_signature = NULL;
4566 static MonoMethodSignature *finalize_signature = NULL;
4569 gboolean need_direct_wrapper = FALSE;
4573 if (!cctor_signature) {
4574 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4575 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4577 if (!finalize_signature) {
4578 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4579 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4580 finalize_signature->hasthis = 1;
4583 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4584 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4586 * Array Get/Set/Address methods. The JIT implements them using inline code
4587 * so we need to create an invoke wrapper which calls the method directly.
4589 need_direct_wrapper = TRUE;
4592 if (method->string_ctor) {
4593 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4595 callsig = add_string_ctor_signature (method);
4597 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4599 * Valuetype methods receive a managed pointer as the this argument.
4600 * Create a new signature to reflect this.
4602 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4604 if (method->dynamic)
4605 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4607 callsig = mono_method_signature (method);
4612 * We try to share runtime invoke wrappers between different methods but have to
4613 * be careful about methods whose klass has a type cctor, since putting the wrapper
4614 * into that klass would mean that calling a method of klass A might invoke the
4615 * type initializer of class B, or throw an exception if the type initializer
4616 * was called before and failed. See #349621 for an example.
4617 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4619 if (method->klass->image == mono_defaults.corlib)
4620 target_klass = mono_defaults.object_class;
4622 /* Try to share wrappers for non-corlib methods with simple signatures */
4623 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4624 callsig = cctor_signature;
4625 target_klass = mono_defaults.object_class;
4626 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4627 callsig = finalize_signature;
4628 target_klass = mono_defaults.object_class;
4630 // FIXME: This breaks too many things
4632 if (mono_class_get_cctor (method->klass))
4633 need_direct_wrapper = TRUE;
4637 * Can't put these wrappers into object, since they reference non-corlib
4638 * metadata (callsig).
4640 target_klass = method->klass;
4644 if (need_direct_wrapper) {
4645 cache = target_klass->image->runtime_invoke_direct_cache;
4646 res = mono_marshal_find_in_cache (cache, method);
4648 cache = target_klass->image->runtime_invoke_cache;
4650 /* from mono_marshal_find_in_cache */
4651 mono_marshal_lock ();
4652 res = g_hash_table_lookup (cache, callsig);
4653 mono_marshal_unlock ();
4660 if (!delay_abort_sig) {
4661 delay_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4662 delay_abort_sig->ret = &mono_defaults.void_class->byval_arg;
4663 delay_abort_sig->pinvoke = 0;
4666 /* to make it work with our special string constructors */
4667 if (!string_dummy) {
4668 MONO_GC_REGISTER_ROOT (string_dummy);
4669 string_dummy = mono_string_new_wrapper ("dummy");
4672 sig = mono_method_signature (method);
4674 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4676 csig->ret = &mono_defaults.object_class->byval_arg;
4677 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4678 csig->params [0] = callsig->params [0];
4680 csig->params [0] = &mono_defaults.object_class->byval_arg;
4681 csig->params [1] = &mono_defaults.int_class->byval_arg;
4682 csig->params [2] = &mono_defaults.int_class->byval_arg;
4683 csig->params [3] = &mono_defaults.int_class->byval_arg;
4685 name = mono_signature_to_name (callsig, "runtime_invoke");
4686 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4689 /* allocate local 0 (object) tmp */
4690 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4691 /* allocate local 1 (object) exc */
4692 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4694 /* cond set *exc to null */
4695 mono_mb_emit_byte (mb, CEE_LDARG_2);
4696 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4697 mono_mb_emit_byte (mb, 3);
4698 mono_mb_emit_byte (mb, CEE_LDARG_2);
4699 mono_mb_emit_byte (mb, CEE_LDNULL);
4700 mono_mb_emit_byte (mb, CEE_STIND_REF);
4702 emit_thread_force_interrupt_checkpoint (mb);
4705 if (method->string_ctor) {
4706 mono_mb_emit_ptr (mb, string_dummy);
4708 mono_mb_emit_ldarg (mb, 0);
4712 for (i = 0; i < sig->param_count; i++) {
4713 MonoType *t = sig->params [i];
4716 mono_mb_emit_ldarg (mb, 1);
4718 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4719 mono_mb_emit_byte (mb, CEE_ADD);
4723 mono_mb_emit_byte (mb, CEE_LDIND_I);
4727 type = sig->params [i]->type;
4731 case MONO_TYPE_BOOLEAN:
4735 case MONO_TYPE_CHAR:
4744 mono_mb_emit_byte (mb, CEE_LDIND_I);
4745 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4747 case MONO_TYPE_STRING:
4748 case MONO_TYPE_CLASS:
4749 case MONO_TYPE_ARRAY:
4751 case MONO_TYPE_SZARRAY:
4752 case MONO_TYPE_OBJECT:
4753 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4755 case MONO_TYPE_GENERICINST:
4756 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4757 mono_mb_emit_byte (mb, CEE_LDIND_I);
4762 case MONO_TYPE_VALUETYPE:
4763 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4764 type = t->data.klass->enum_basetype->type;
4767 mono_mb_emit_byte (mb, CEE_LDIND_I);
4768 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4769 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4770 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4771 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4773 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4777 g_assert_not_reached ();
4781 if (need_direct_wrapper) {
4782 mono_mb_emit_op (mb, CEE_CALL, method);
4784 mono_mb_emit_ldarg (mb, 3);
4785 mono_mb_emit_calli (mb, callsig);
4788 if (sig->ret->byref) {
4790 g_assert_not_reached ();
4794 switch (sig->ret->type) {
4795 case MONO_TYPE_VOID:
4796 if (!method->string_ctor)
4797 mono_mb_emit_byte (mb, CEE_LDNULL);
4799 case MONO_TYPE_BOOLEAN:
4800 case MONO_TYPE_CHAR:
4813 case MONO_TYPE_VALUETYPE:
4814 case MONO_TYPE_TYPEDBYREF:
4815 case MONO_TYPE_GENERICINST:
4816 /* box value types */
4817 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4819 case MONO_TYPE_STRING:
4820 case MONO_TYPE_CLASS:
4821 case MONO_TYPE_ARRAY:
4822 case MONO_TYPE_SZARRAY:
4823 case MONO_TYPE_OBJECT:
4828 g_assert_not_reached ();
4831 mono_mb_emit_stloc (mb, 0);
4833 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4835 mono_loader_lock ();
4836 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
4837 mono_loader_unlock ();
4838 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4839 clause->try_len = mono_mb_get_label (mb);
4842 clause->data.filter_offset = mono_mb_get_label (mb);
4844 mono_mb_emit_byte (mb, CEE_POP);
4845 mono_mb_emit_byte (mb, CEE_LDARG_2);
4846 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4847 mono_mb_emit_byte (mb, CEE_PREFIX1);
4848 mono_mb_emit_byte (mb, CEE_CGT_UN);
4849 mono_mb_emit_byte (mb, CEE_PREFIX1);
4850 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4852 clause->handler_offset = mono_mb_get_label (mb);
4855 /* store exception */
4856 mono_mb_emit_stloc (mb, 1);
4858 mono_mb_emit_byte (mb, CEE_LDARG_2);
4859 mono_mb_emit_ldloc (mb, 1);
4860 mono_mb_emit_byte (mb, CEE_STIND_REF);
4862 mono_mb_emit_byte (mb, CEE_LDNULL);
4863 mono_mb_emit_stloc (mb, 0);
4865 /* Check for the abort exception */
4866 mono_mb_emit_ldloc (mb, 1);
4867 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4868 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4870 /* Delay the abort exception */
4871 mono_mb_emit_native_call (mb, delay_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
4873 mono_mb_patch_short_branch (mb, posna);
4874 mono_mb_emit_branch (mb, CEE_LEAVE);
4876 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4879 mono_mb_patch_branch (mb, pos);
4880 mono_mb_emit_ldloc (mb, 0);
4881 mono_mb_emit_byte (mb, CEE_RET);
4883 if (need_direct_wrapper) {
4884 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4886 /* taken from mono_mb_create_and_cache */
4887 mono_marshal_lock ();
4888 res = g_hash_table_lookup (cache, callsig);
4889 mono_marshal_unlock ();
4891 /* Somebody may have created it before us */
4894 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4896 mono_marshal_lock ();
4897 res = g_hash_table_lookup (cache, callsig);
4900 g_hash_table_insert (cache, callsig, res);
4901 g_hash_table_insert (wrapper_hash, res, callsig);
4903 mono_free_method (newm);
4905 mono_marshal_unlock ();
4908 /* end mono_mb_create_and_cache */
4913 header = ((MonoMethodNormal *)res)->header;
4914 header->num_clauses = 1;
4915 header->clauses = clause;
4921 * mono_marshal_get_static_rgctx_invoke:
4924 * Generates a wrapper for calling a static method. We need this for
4925 * ldftn when we do generic code sharing. Instead of producing the
4926 * address of the static method we produce the address of a wrapper
4927 * for the method because the wrapper passes the runtime generic
4928 * context argument which calli cannot do.
4931 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
4933 MonoMethodBuilder *mb;
4935 MonoClass *target_klass = method->klass;
4936 MonoMethodSignature *sig = mono_method_signature (method);
4940 MonoImage *image = method->klass->image;
4942 if (!(cache = image->static_rgctx_invoke_cache)) {
4943 mono_marshal_lock ();
4944 if (!(cache = image->static_rgctx_invoke_cache)) {
4945 cache = image->static_rgctx_invoke_cache =
4946 g_hash_table_new (mono_aligned_addr_hash, NULL);
4948 mono_marshal_unlock ();
4951 if ((res = mono_marshal_find_in_cache (cache, method)))
4954 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
4955 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
4958 for (i = 0; i < sig->param_count; i++)
4959 mono_mb_emit_ldarg (mb, i);
4960 mono_mb_emit_op (mb, CEE_CALL, method);
4961 mono_mb_emit_byte (mb, CEE_RET);
4963 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method), sig->param_count + 4);
4964 res->skip_visibility = TRUE;
4965 res->flags = method->flags;
4973 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4975 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4976 klass->name_space, klass->name);
4978 mono_mb_emit_exception_marshal_directive (mb, msg);
4982 * mono_marshal_get_ldfld_remote_wrapper:
4983 * @klass: The return type
4985 * This method generates a wrapper for calling mono_load_remote_field_new.
4986 * The return type is ignored for now, as mono_load_remote_field_new () always
4987 * returns an object. In the future, to optimize some codepaths, we might
4988 * call a different function that takes a pointer to a valuetype, instead.
4991 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4993 MonoMethodSignature *sig, *csig;
4994 MonoMethodBuilder *mb;
4996 static MonoMethod* cached = NULL;
4998 mono_marshal_lock ();
5000 mono_marshal_unlock ();
5003 mono_marshal_unlock ();
5005 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5007 mb->method->save_lmf = 1;
5009 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5010 sig->params [0] = &mono_defaults.object_class->byval_arg;
5011 sig->params [1] = &mono_defaults.int_class->byval_arg;
5012 sig->params [2] = &mono_defaults.int_class->byval_arg;
5013 sig->ret = &mono_defaults.object_class->byval_arg;
5015 mono_mb_emit_ldarg (mb, 0);
5016 mono_mb_emit_ldarg (mb, 1);
5017 mono_mb_emit_ldarg (mb, 2);
5019 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5020 csig->params [0] = &mono_defaults.object_class->byval_arg;
5021 csig->params [1] = &mono_defaults.int_class->byval_arg;
5022 csig->params [2] = &mono_defaults.int_class->byval_arg;
5023 csig->ret = &mono_defaults.object_class->byval_arg;
5026 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5027 emit_thread_interrupt_checkpoint (mb);
5029 mono_mb_emit_byte (mb, CEE_RET);
5031 mono_marshal_lock ();
5033 mono_marshal_unlock ();
5036 newm = mono_mb_create_method (mb, sig, 4);
5037 mono_marshal_lock ();
5042 mono_marshal_unlock ();
5044 mono_marshal_unlock ();
5045 mono_free_method (newm);
5054 * mono_marshal_get_ldfld_wrapper:
5055 * @type: the type of the field
5057 * This method generates a function which can be use to load a field with type
5058 * @type from an object. The generated function has the following signature:
5059 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5062 mono_marshal_get_ldfld_wrapper (MonoType *type)
5064 MonoMethodSignature *sig;
5065 MonoMethodBuilder *mb;
5070 int t, pos0, pos1 = 0;
5072 type = mono_type_get_underlying_type (type);
5077 if (type->type == MONO_TYPE_SZARRAY) {
5078 klass = mono_defaults.array_class;
5079 } else if (type->type == MONO_TYPE_VALUETYPE) {
5080 klass = type->data.klass;
5081 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5082 klass = mono_defaults.object_class;
5083 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5084 klass = mono_defaults.int_class;
5085 } else if (t == MONO_TYPE_GENERICINST) {
5086 if (mono_type_generic_inst_is_valuetype (type))
5087 klass = mono_class_from_mono_type (type);
5089 klass = mono_defaults.object_class;
5091 klass = mono_class_from_mono_type (type);
5094 klass = mono_defaults.int_class;
5097 cache = klass->image->ldfld_wrapper_cache;
5098 if ((res = mono_marshal_find_in_cache (cache, klass)))
5101 /* we add the %p pointer value of klass because class names are not unique */
5102 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5103 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5106 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5107 sig->params [0] = &mono_defaults.object_class->byval_arg;
5108 sig->params [1] = &mono_defaults.int_class->byval_arg;
5109 sig->params [2] = &mono_defaults.int_class->byval_arg;
5110 sig->params [3] = &mono_defaults.int_class->byval_arg;
5111 sig->ret = &klass->byval_arg;
5113 mono_mb_emit_ldarg (mb, 0);
5114 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5116 mono_mb_emit_ldarg (mb, 0);
5117 mono_mb_emit_ldarg (mb, 1);
5118 mono_mb_emit_ldarg (mb, 2);
5120 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5123 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5124 csig->params [0] = &mono_defaults.object_class->byval_arg;
5125 csig->params [1] = &mono_defaults.int_class->byval_arg;
5126 csig->params [2] = &mono_defaults.int_class->byval_arg;
5127 csig->ret = &klass->this_arg;
5130 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5131 emit_thread_interrupt_checkpoint (mb);
5134 if (klass->valuetype) {
5135 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5136 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5138 mono_mb_emit_byte (mb, CEE_RET);
5142 mono_mb_patch_branch (mb, pos0);
5144 mono_mb_emit_ldarg (mb, 0);
5145 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5146 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5147 mono_mb_emit_ldarg (mb, 3);
5148 mono_mb_emit_byte (mb, CEE_ADD);
5150 if (klass->valuetype)
5151 mono_mb_patch_branch (mb, pos1);
5156 case MONO_TYPE_BOOLEAN:
5157 case MONO_TYPE_CHAR:
5166 case MONO_TYPE_ARRAY:
5167 case MONO_TYPE_SZARRAY:
5168 case MONO_TYPE_OBJECT:
5169 case MONO_TYPE_CLASS:
5170 case MONO_TYPE_STRING:
5174 case MONO_TYPE_FNPTR:
5175 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5177 case MONO_TYPE_VALUETYPE:
5178 g_assert (!klass->enumtype);
5179 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5181 case MONO_TYPE_GENERICINST:
5182 if (mono_type_generic_inst_is_valuetype (type)) {
5183 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5185 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5189 g_warning ("type %x not implemented", type->type);
5190 g_assert_not_reached ();
5193 mono_mb_emit_byte (mb, CEE_RET);
5195 res = mono_mb_create_and_cache (cache, klass,
5196 mb, sig, sig->param_count + 16);
5203 * mono_marshal_get_ldflda_wrapper:
5204 * @type: the type of the field
5206 * This method generates a function which can be used to load a field address
5207 * from an object. The generated function has the following signature:
5208 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5211 mono_marshal_get_ldflda_wrapper (MonoType *type)
5213 MonoMethodSignature *sig;
5214 MonoMethodBuilder *mb;
5221 type = mono_type_get_underlying_type (type);
5225 if (type->type == MONO_TYPE_SZARRAY) {
5226 klass = mono_defaults.array_class;
5227 } else if (type->type == MONO_TYPE_VALUETYPE) {
5228 klass = type->data.klass;
5229 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5230 t == MONO_TYPE_CLASS) {
5231 klass = mono_defaults.object_class;
5232 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5233 klass = mono_defaults.int_class;
5234 } else if (t == MONO_TYPE_GENERICINST) {
5235 if (mono_type_generic_inst_is_valuetype (type))
5236 klass = mono_class_from_mono_type (type);
5238 klass = mono_defaults.object_class;
5240 klass = mono_class_from_mono_type (type);
5243 klass = mono_defaults.int_class;
5246 cache = klass->image->ldflda_wrapper_cache;
5247 if ((res = mono_marshal_find_in_cache (cache, klass)))
5250 /* we add the %p pointer value of klass because class names are not unique */
5251 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5252 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5255 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5256 sig->params [0] = &mono_defaults.object_class->byval_arg;
5257 sig->params [1] = &mono_defaults.int_class->byval_arg;
5258 sig->params [2] = &mono_defaults.int_class->byval_arg;
5259 sig->params [3] = &mono_defaults.int_class->byval_arg;
5260 sig->ret = &mono_defaults.int_class->byval_arg;
5262 mono_mb_emit_ldarg (mb, 0);
5263 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5265 /* FIXME: Only throw this if the object is in another appdomain */
5266 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5268 mono_mb_patch_branch (mb, pos0);
5270 mono_mb_emit_ldarg (mb, 0);
5271 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5272 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5273 mono_mb_emit_ldarg (mb, 3);
5274 mono_mb_emit_byte (mb, CEE_ADD);
5276 mono_mb_emit_byte (mb, CEE_RET);
5278 res = mono_mb_create_and_cache (cache, klass,
5279 mb, sig, sig->param_count + 16);
5286 * mono_marshal_get_stfld_remote_wrapper:
5287 * klass: The type of the field
5289 * This function generates a wrapper for calling mono_store_remote_field_new
5290 * with the appropriate signature.
5291 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5292 * klass argument anymore.
5295 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5297 MonoMethodSignature *sig, *csig;
5298 MonoMethodBuilder *mb;
5300 static MonoMethod *cached = NULL;
5302 mono_marshal_lock ();
5304 mono_marshal_unlock ();
5307 mono_marshal_unlock ();
5309 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5311 mb->method->save_lmf = 1;
5313 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5314 sig->params [0] = &mono_defaults.object_class->byval_arg;
5315 sig->params [1] = &mono_defaults.int_class->byval_arg;
5316 sig->params [2] = &mono_defaults.int_class->byval_arg;
5317 sig->params [3] = &mono_defaults.object_class->byval_arg;
5318 sig->ret = &mono_defaults.void_class->byval_arg;
5320 mono_mb_emit_ldarg (mb, 0);
5321 mono_mb_emit_ldarg (mb, 1);
5322 mono_mb_emit_ldarg (mb, 2);
5323 mono_mb_emit_ldarg (mb, 3);
5325 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5326 csig->params [0] = &mono_defaults.object_class->byval_arg;
5327 csig->params [1] = &mono_defaults.int_class->byval_arg;
5328 csig->params [2] = &mono_defaults.int_class->byval_arg;
5329 csig->params [3] = &mono_defaults.object_class->byval_arg;
5330 csig->ret = &mono_defaults.void_class->byval_arg;
5333 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5334 emit_thread_interrupt_checkpoint (mb);
5336 mono_mb_emit_byte (mb, CEE_RET);
5338 mono_marshal_lock ();
5340 mono_marshal_unlock ();
5343 newm = mono_mb_create_method (mb, sig, 6);
5344 mono_marshal_lock ();
5349 mono_marshal_unlock ();
5351 mono_marshal_unlock ();
5352 mono_free_method (newm);
5361 * mono_marshal_get_stfld_wrapper:
5362 * @type: the type of the field
5364 * This method generates a function which can be use to store a field with type
5365 * @type. The generated function has the following signature:
5366 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5369 mono_marshal_get_stfld_wrapper (MonoType *type)
5371 MonoMethodSignature *sig;
5372 MonoMethodBuilder *mb;
5379 type = mono_type_get_underlying_type (type);
5383 if (type->type == MONO_TYPE_SZARRAY) {
5384 klass = mono_defaults.array_class;
5385 } else if (type->type == MONO_TYPE_VALUETYPE) {
5386 klass = type->data.klass;
5387 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5388 klass = mono_defaults.object_class;
5389 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5390 klass = mono_defaults.int_class;
5391 } else if (t == MONO_TYPE_GENERICINST) {
5392 if (mono_type_generic_inst_is_valuetype (type))
5393 klass = mono_class_from_mono_type (type);
5395 klass = mono_defaults.object_class;
5397 klass = mono_class_from_mono_type (type);
5400 klass = mono_defaults.int_class;
5403 cache = klass->image->stfld_wrapper_cache;
5404 if ((res = mono_marshal_find_in_cache (cache, klass)))
5407 /* we add the %p pointer value of klass because class names are not unique */
5408 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5409 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5412 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5413 sig->params [0] = &mono_defaults.object_class->byval_arg;
5414 sig->params [1] = &mono_defaults.int_class->byval_arg;
5415 sig->params [2] = &mono_defaults.int_class->byval_arg;
5416 sig->params [3] = &mono_defaults.int_class->byval_arg;
5417 sig->params [4] = &klass->byval_arg;
5418 sig->ret = &mono_defaults.void_class->byval_arg;
5420 mono_mb_emit_ldarg (mb, 0);
5421 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5423 mono_mb_emit_ldarg (mb, 0);
5424 mono_mb_emit_ldarg (mb, 1);
5425 mono_mb_emit_ldarg (mb, 2);
5426 mono_mb_emit_ldarg (mb, 4);
5427 if (klass->valuetype)
5428 mono_mb_emit_op (mb, CEE_BOX, klass);
5430 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5432 mono_mb_emit_byte (mb, CEE_RET);
5434 mono_mb_patch_branch (mb, pos);
5436 mono_mb_emit_ldarg (mb, 0);
5437 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5438 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5439 mono_mb_emit_ldarg (mb, 3);
5440 mono_mb_emit_byte (mb, CEE_ADD);
5441 mono_mb_emit_ldarg (mb, 4);
5446 case MONO_TYPE_BOOLEAN:
5447 case MONO_TYPE_CHAR:
5456 case MONO_TYPE_ARRAY:
5457 case MONO_TYPE_SZARRAY:
5458 case MONO_TYPE_OBJECT:
5459 case MONO_TYPE_CLASS:
5460 case MONO_TYPE_STRING:
5464 case MONO_TYPE_FNPTR:
5465 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5467 case MONO_TYPE_VALUETYPE:
5468 g_assert (!klass->enumtype);
5469 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5471 case MONO_TYPE_GENERICINST:
5472 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5475 g_warning ("type %x not implemented", type->type);
5476 g_assert_not_reached ();
5479 mono_mb_emit_byte (mb, CEE_RET);
5481 res = mono_mb_create_and_cache (cache, klass,
5482 mb, sig, sig->param_count + 16);
5489 * generates IL code for the icall wrapper (the generated method
5490 * calls the unmanaged code in func)
5493 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5495 MonoMethodSignature *csig;
5496 MonoMethodBuilder *mb;
5500 g_assert (sig->pinvoke);
5502 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5504 mb->method->save_lmf = 1;
5506 /* we copy the signature, so that we can modify it */
5509 mono_mb_emit_byte (mb, CEE_LDARG_0);
5511 for (i = 0; i < sig->param_count; i++)
5512 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5514 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5515 if (check_exceptions)
5516 emit_thread_interrupt_checkpoint (mb);
5517 mono_mb_emit_byte (mb, CEE_RET);
5519 csig = signature_dup (mono_defaults.corlib, sig);
5521 if (csig->call_convention == MONO_CALL_VARARG)
5522 csig->call_convention = 0;
5524 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5531 MonoMethodBuilder *mb;
5532 MonoMethodSignature *sig;
5533 MonoMethodPInvoke *piinfo;
5534 int *orig_conv_args; /* Locals containing the original values of byref args */
5536 MonoClass *retobj_class;
5537 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5538 MonoImage *image; /* The image to use for looking up custom marshallers */
5539 } EmitMarshalContext;
5543 * This is invoked to convert arguments from the current types to
5544 * the underlying types expected by the platform routine. If required,
5545 * the methods create a temporary variable with the proper type, and return
5546 * the location for it (either the passed argument, or the newly allocated
5549 MARSHAL_ACTION_CONV_IN,
5552 * This operation is called to push the actual value that was optionally
5553 * converted on the first stage
5555 MARSHAL_ACTION_PUSH,
5558 * Convert byref arguments back or free resources allocated during the
5561 MARSHAL_ACTION_CONV_OUT,
5564 * The result from the unmanaged call is at the top of the stack when
5565 * this action is invoked. The result should be stored in the
5566 * third local variable slot.
5568 MARSHAL_ACTION_CONV_RESULT,
5570 MARSHAL_ACTION_MANAGED_CONV_IN,
5571 MARSHAL_ACTION_MANAGED_CONV_OUT,
5572 MARSHAL_ACTION_MANAGED_CONV_RESULT
5576 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5577 MonoMarshalSpec *spec,
5578 int conv_arg, MonoType **conv_arg_type,
5579 MarshalAction action)
5583 static MonoClass *ICustomMarshaler = NULL;
5584 static MonoMethod *cleanup_native, *cleanup_managed;
5585 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5586 MonoMethod *get_instance;
5587 MonoMethodBuilder *mb = m->mb;
5588 char *exception_msg = NULL;
5592 if (!ICustomMarshaler) {
5593 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5594 g_assert (ICustomMarshaler);
5596 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5597 g_assert (cleanup_native);
5598 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5599 g_assert (cleanup_managed);
5600 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5601 g_assert (marshal_managed_to_native);
5602 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5603 g_assert (marshal_native_to_managed);
5606 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5607 g_assert (mtype != NULL);
5608 mklass = mono_class_from_mono_type (mtype);
5609 g_assert (mklass != NULL);
5611 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5612 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5614 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5616 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5617 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5618 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5619 (get_sig->params [0]->type != MONO_TYPE_STRING))
5620 get_instance = NULL;
5624 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);
5626 /* Throw exception and emit compensation code if neccesary */
5627 if (exception_msg) {
5629 case MARSHAL_ACTION_CONV_IN:
5630 case MARSHAL_ACTION_CONV_RESULT:
5631 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5632 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5633 mono_mb_emit_byte (mb, CEE_POP);
5635 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5636 g_free (exception_msg);
5639 case MARSHAL_ACTION_PUSH:
5640 mono_mb_emit_byte (mb, CEE_LDNULL);
5648 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5649 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5652 case MARSHAL_ACTION_CONV_IN:
5654 case MONO_TYPE_CLASS:
5655 case MONO_TYPE_OBJECT:
5656 case MONO_TYPE_STRING:
5657 case MONO_TYPE_ARRAY:
5658 case MONO_TYPE_SZARRAY:
5659 case MONO_TYPE_VALUETYPE:
5663 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5664 g_assert_not_reached ();
5668 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5670 mono_mb_emit_byte (mb, CEE_LDNULL);
5671 mono_mb_emit_stloc (mb, conv_arg);
5673 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5676 /* Minic MS.NET behavior */
5677 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5680 /* Check for null */
5681 mono_mb_emit_ldarg (mb, argnum);
5683 mono_mb_emit_byte (mb, CEE_LDIND_I);
5684 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5686 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5688 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5690 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5694 if (t->type == MONO_TYPE_VALUETYPE) {
5696 * Since we can't determine the type of the argument, we
5697 * will assume the unmanaged function takes a pointer.
5699 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5701 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5704 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5705 mono_mb_emit_stloc (mb, conv_arg);
5707 mono_mb_patch_branch (mb, pos2);
5710 case MARSHAL_ACTION_CONV_OUT:
5711 /* Check for null */
5712 mono_mb_emit_ldloc (mb, conv_arg);
5713 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5716 mono_mb_emit_ldarg (mb, argnum);
5718 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5720 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5722 mono_mb_emit_ldloc (mb, conv_arg);
5723 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5724 mono_mb_emit_byte (mb, CEE_STIND_REF);
5725 } else if (t->attrs &PARAM_ATTRIBUTE_OUT) {
5726 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5728 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5730 mono_mb_emit_ldloc (mb, conv_arg);
5731 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5733 /* We have nowhere to store the result */
5734 mono_mb_emit_byte (mb, CEE_POP);
5737 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5739 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5741 mono_mb_emit_ldloc (mb, conv_arg);
5743 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5745 mono_mb_patch_branch (mb, pos2);
5748 case MARSHAL_ACTION_PUSH:
5750 mono_mb_emit_ldloc_addr (mb, conv_arg);
5752 mono_mb_emit_ldloc (mb, conv_arg);
5755 case MARSHAL_ACTION_CONV_RESULT:
5756 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5758 mono_mb_emit_stloc (mb, 3);
5760 mono_mb_emit_ldloc (mb, 3);
5761 mono_mb_emit_stloc (mb, loc1);
5763 /* Check for null */
5764 mono_mb_emit_ldloc (mb, 3);
5765 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5767 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5769 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5770 mono_mb_emit_byte (mb, CEE_DUP);
5772 mono_mb_emit_ldloc (mb, 3);
5773 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5774 mono_mb_emit_stloc (mb, 3);
5776 mono_mb_emit_ldloc (mb, loc1);
5777 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5779 mono_mb_patch_branch (mb, pos2);
5782 case MARSHAL_ACTION_MANAGED_CONV_IN:
5783 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5785 mono_mb_emit_byte (mb, CEE_LDNULL);
5786 mono_mb_emit_stloc (mb, conv_arg);
5788 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5791 /* Check for null */
5792 mono_mb_emit_ldarg (mb, argnum);
5794 mono_mb_emit_byte (mb, CEE_LDIND_I);
5795 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5797 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5798 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5800 mono_mb_emit_ldarg (mb, argnum);
5802 mono_mb_emit_byte (mb, CEE_LDIND_I);
5804 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5805 mono_mb_emit_stloc (mb, conv_arg);
5807 mono_mb_patch_branch (mb, pos2);
5810 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5811 g_assert (!t->byref);
5813 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5815 mono_mb_emit_stloc (mb, 3);
5817 mono_mb_emit_ldloc (mb, 3);
5818 mono_mb_emit_stloc (mb, loc1);
5820 /* Check for null */
5821 mono_mb_emit_ldloc (mb, 3);
5822 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5824 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5825 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5826 mono_mb_emit_byte (mb, CEE_DUP);
5828 mono_mb_emit_ldloc (mb, 3);
5829 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5830 mono_mb_emit_stloc (mb, 3);
5832 mono_mb_emit_ldloc (mb, loc1);
5833 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5835 mono_mb_patch_branch (mb, pos2);
5838 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5840 /* Check for null */
5841 mono_mb_emit_ldloc (mb, conv_arg);
5842 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5845 mono_mb_emit_ldarg (mb, argnum);
5847 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5849 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5851 mono_mb_emit_ldloc (mb, conv_arg);
5852 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5853 mono_mb_emit_byte (mb, CEE_STIND_I);
5856 /* Call CleanUpManagedData */
5857 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5859 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5861 mono_mb_emit_ldloc (mb, conv_arg);
5862 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5864 mono_mb_patch_branch (mb, pos2);
5868 g_assert_not_reached ();
5875 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5876 MonoMarshalSpec *spec,
5877 int conv_arg, MonoType **conv_arg_type,
5878 MarshalAction action)
5880 MonoMethodBuilder *mb = m->mb;
5883 case MARSHAL_ACTION_CONV_IN: {
5884 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5886 g_assert (t->type == MONO_TYPE_OBJECT);
5887 g_assert (!t->byref);
5889 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5890 mono_mb_emit_ldarg (mb, argnum);
5891 mono_mb_emit_icon (mb, encoding);
5892 mono_mb_emit_icon (mb, t->attrs);
5893 mono_mb_emit_icall (mb, mono_marshal_asany);
5894 mono_mb_emit_stloc (mb, conv_arg);
5898 case MARSHAL_ACTION_PUSH:
5899 mono_mb_emit_ldloc (mb, conv_arg);
5902 case MARSHAL_ACTION_CONV_OUT: {
5903 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5905 mono_mb_emit_ldarg (mb, argnum);
5906 mono_mb_emit_ldloc (mb, conv_arg);
5907 mono_mb_emit_icon (mb, encoding);
5908 mono_mb_emit_icon (mb, t->attrs);
5909 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5914 g_assert_not_reached ();
5921 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5922 MonoMarshalSpec *spec,
5923 int conv_arg, MonoType **conv_arg_type,
5924 MarshalAction action)
5926 MonoMethodBuilder *mb = m->mb;
5930 klass = t->data.klass;
5933 case MARSHAL_ACTION_CONV_IN:
5934 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5935 klass->blittable || klass->enumtype)
5938 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5940 /* store the address of the source into local variable 0 */
5942 mono_mb_emit_ldarg (mb, argnum);
5944 mono_mb_emit_ldarg_addr (mb, argnum);
5946 mono_mb_emit_stloc (mb, 0);
5948 /* allocate space for the native struct and
5949 * store the address into local variable 1 (dest) */
5950 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5951 mono_mb_emit_byte (mb, CEE_PREFIX1);
5952 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5953 mono_mb_emit_stloc (mb, conv_arg);
5956 mono_mb_emit_ldloc (mb, 0);
5957 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5960 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5962 mono_mb_emit_ldloc (mb, conv_arg);
5963 mono_mb_emit_stloc (mb, 1);
5965 /* emit valuetype conversion code */
5966 emit_struct_conv (mb, klass, FALSE);
5970 mono_mb_patch_branch (mb, pos);
5973 case MARSHAL_ACTION_PUSH:
5974 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5976 g_assert (!t->byref);
5978 /* Have to change the signature since the vtype is passed byref */
5979 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5981 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5982 klass->blittable || klass->enumtype)
5983 mono_mb_emit_ldarg_addr (mb, argnum);
5985 mono_mb_emit_ldloc (mb, conv_arg);
5989 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5990 klass->blittable || klass->enumtype) {
5991 mono_mb_emit_ldarg (mb, argnum);
5994 mono_mb_emit_ldloc (mb, conv_arg);
5996 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5997 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6001 case MARSHAL_ACTION_CONV_OUT:
6002 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6003 klass->blittable || klass->enumtype)
6007 /* dst = argument */
6008 mono_mb_emit_ldarg (mb, argnum);
6009 mono_mb_emit_stloc (mb, 1);
6011 mono_mb_emit_ldloc (mb, 1);
6012 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6014 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6015 /* src = tmp_locals [i] */
6016 mono_mb_emit_ldloc (mb, conv_arg);
6017 mono_mb_emit_stloc (mb, 0);
6019 /* emit valuetype conversion code */
6020 emit_struct_conv (mb, klass, TRUE);
6024 emit_struct_free (mb, klass, conv_arg);
6027 mono_mb_patch_branch (mb, pos);
6030 case MARSHAL_ACTION_CONV_RESULT:
6031 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6033 mono_mb_emit_stloc (mb, 3);
6036 /* load pointer to returned value type */
6037 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6038 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6039 /* store the address of the source into local variable 0 */
6040 mono_mb_emit_stloc (mb, 0);
6042 mono_mb_emit_ldloc_addr (mb, 3);
6043 mono_mb_emit_stloc (mb, 1);
6045 /* emit valuetype conversion code */
6046 emit_struct_conv (mb, klass, TRUE);
6049 case MARSHAL_ACTION_MANAGED_CONV_IN:
6050 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6051 klass->blittable || klass->enumtype) {
6056 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6058 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6062 mono_mb_emit_ldarg (mb, argnum);
6064 mono_mb_emit_ldarg_addr (mb, argnum);
6065 mono_mb_emit_stloc (mb, 0);
6068 mono_mb_emit_ldloc (mb, 0);
6069 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6072 mono_mb_emit_ldloc_addr (mb, conv_arg);
6073 mono_mb_emit_stloc (mb, 1);
6075 /* emit valuetype conversion code */
6076 emit_struct_conv (mb, klass, TRUE);
6079 mono_mb_patch_branch (mb, pos);
6082 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6083 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6084 klass->blittable || klass->enumtype) {
6088 /* Check for null */
6089 mono_mb_emit_ldarg (mb, argnum);
6090 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6093 mono_mb_emit_ldloc_addr (mb, conv_arg);
6094 mono_mb_emit_stloc (mb, 0);
6097 mono_mb_emit_ldarg (mb, argnum);
6098 mono_mb_emit_stloc (mb, 1);
6100 /* emit valuetype conversion code */
6101 emit_struct_conv (mb, klass, FALSE);
6103 mono_mb_patch_branch (mb, pos2);
6106 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6107 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6108 klass->blittable || klass->enumtype) {
6109 mono_mb_emit_stloc (mb, 3);
6114 /* load pointer to returned value type */
6115 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6116 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6118 /* store the address of the source into local variable 0 */
6119 mono_mb_emit_stloc (mb, 0);
6120 /* allocate space for the native struct and
6121 * store the address into dst_ptr */
6122 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6123 m->retobj_class = klass;
6124 g_assert (m->retobj_var);
6125 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6126 mono_mb_emit_byte (mb, CEE_CONV_I);
6127 mono_mb_emit_icall (mb, mono_marshal_alloc);
6128 mono_mb_emit_stloc (mb, 1);
6129 mono_mb_emit_ldloc (mb, 1);
6130 mono_mb_emit_stloc (mb, m->retobj_var);
6132 /* emit valuetype conversion code */
6133 emit_struct_conv (mb, klass, FALSE);
6137 g_assert_not_reached ();
6144 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6145 MonoMarshalSpec *spec,
6146 int conv_arg, MonoType **conv_arg_type,
6147 MarshalAction action)
6149 MonoMethodBuilder *mb = m->mb;
6150 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6151 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6155 case MARSHAL_ACTION_CONV_IN:
6156 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6157 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6160 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6163 mono_mb_emit_ldarg (mb, argnum);
6164 mono_mb_emit_byte (mb, CEE_LDIND_I);
6166 mono_mb_emit_ldarg (mb, argnum);
6170 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6171 MonoException *exc = mono_get_exception_not_implemented (msg);
6174 mono_raise_exception (exc);
6177 mono_mb_emit_icall (mb, conv_to_icall (conv));
6179 mono_mb_emit_stloc (mb, conv_arg);
6182 case MARSHAL_ACTION_CONV_OUT:
6183 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6185 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6186 mono_mb_emit_exception_marshal_directive (mb, msg);
6190 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6191 mono_mb_emit_ldarg (mb, argnum);
6192 mono_mb_emit_ldloc (mb, conv_arg);
6193 mono_mb_emit_icall (mb, conv_to_icall (conv));
6194 mono_mb_emit_byte (mb, CEE_STIND_REF);
6198 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6199 mono_mb_emit_ldloc (mb, conv_arg);
6200 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6201 mono_mb_emit_icall (mb, mono_free_bstr);
6203 mono_mb_emit_icall (mb, mono_marshal_free);
6207 case MARSHAL_ACTION_PUSH:
6209 mono_mb_emit_ldloc_addr (mb, conv_arg);
6211 mono_mb_emit_ldloc (mb, conv_arg);
6214 case MARSHAL_ACTION_CONV_RESULT:
6215 mono_mb_emit_stloc (mb, 0);
6217 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6219 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6220 mono_mb_emit_exception_marshal_directive (mb, msg);
6224 mono_mb_emit_ldloc (mb, 0);
6225 mono_mb_emit_icall (mb, conv_to_icall (conv));
6226 mono_mb_emit_stloc (mb, 3);
6228 /* free the string */
6229 mono_mb_emit_ldloc (mb, 0);
6230 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6231 mono_mb_emit_icall (mb, mono_free_bstr);
6233 mono_mb_emit_icall (mb, g_free);
6236 case MARSHAL_ACTION_MANAGED_CONV_IN:
6242 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6243 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6245 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6247 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6248 mono_mb_emit_exception_marshal_directive (mb, msg);
6252 mono_mb_emit_ldarg (mb, argnum);
6253 mono_mb_emit_icall (mb, conv_to_icall (conv));
6254 mono_mb_emit_stloc (mb, conv_arg);
6257 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6258 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6259 /* We need to make a copy so the caller is able to free it */
6260 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6262 mono_mb_emit_icall (mb, conv_to_icall (conv));
6263 mono_mb_emit_stloc (mb, 3);
6267 g_assert_not_reached ();
6274 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6275 MonoMarshalSpec *spec, int conv_arg,
6276 MonoType **conv_arg_type, MarshalAction action)
6278 MonoMethodBuilder *mb = m->mb;
6281 case MARSHAL_ACTION_CONV_IN: {
6282 MonoType *intptr_type;
6283 int dar_release_slot, pos;
6285 intptr_type = &mono_defaults.int_class->byval_arg;
6286 conv_arg = mono_mb_add_local (mb, intptr_type);
6287 *conv_arg_type = intptr_type;
6289 if (!sh_dangerous_add_ref)
6290 init_safe_handle ();
6292 mono_mb_emit_ldarg (mb, argnum);
6293 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6294 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6296 mono_mb_patch_branch (mb, pos);
6299 * My tests in show that ref SafeHandles are not really
6300 * passed as ref objects. Instead a NULL is passed as the
6303 mono_mb_emit_icon (mb, 0);
6304 mono_mb_emit_stloc (mb, conv_arg);
6308 /* Create local to hold the ref parameter to DangerousAddRef */
6309 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6311 /* set release = false; */
6312 mono_mb_emit_icon (mb, 0);
6313 mono_mb_emit_stloc (mb, dar_release_slot);
6315 /* safehandle.DangerousAddRef (ref release) */
6316 mono_mb_emit_ldarg (mb, argnum);
6317 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6318 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6320 /* Pull the handle field from SafeHandle */
6321 mono_mb_emit_ldarg (mb, argnum);
6322 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6323 mono_mb_emit_byte (mb, CEE_LDIND_I);
6324 mono_mb_emit_stloc (mb, conv_arg);
6329 case MARSHAL_ACTION_PUSH:
6331 mono_mb_emit_ldloc_addr (mb, conv_arg);
6333 mono_mb_emit_ldloc (mb, conv_arg);
6336 case MARSHAL_ACTION_CONV_OUT: {
6337 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6338 int dar_release_slot = conv_arg + 1;
6341 if (!sh_dangerous_release)
6342 init_safe_handle ();
6348 * My tests indicate that ref SafeHandles parameters are not actually
6349 * passed by ref, but instead a new Handle is created regardless of
6350 * whether a change happens in the unmanaged side.
6352 * Also, the Handle is created before calling into unmanaged code,
6353 * but we do not support that mechanism (getting to the original
6354 * handle) and it makes no difference where we create this
6356 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6358 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6361 /* refval = new SafeHandleDerived ()*/
6362 mono_mb_emit_ldarg (mb, argnum);
6363 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6364 mono_mb_emit_byte (mb, CEE_STIND_REF);
6366 /* refval.handle = returned_handle */
6367 mono_mb_emit_ldarg (mb, argnum);
6368 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6369 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6370 mono_mb_emit_ldloc (mb, conv_arg);
6371 mono_mb_emit_byte (mb, CEE_STIND_I);
6373 mono_mb_emit_ldloc (mb, dar_release_slot);
6374 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6375 mono_mb_emit_ldarg (mb, argnum);
6376 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6377 mono_mb_patch_branch (mb, label_next);
6382 case MARSHAL_ACTION_CONV_RESULT: {
6383 MonoMethod *ctor = NULL;
6384 int intptr_handle_slot;
6386 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6387 mono_mb_emit_byte (mb, CEE_POP);
6388 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6392 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6394 mono_mb_emit_byte (mb, CEE_POP);
6395 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6398 /* Store the IntPtr results into a local */
6399 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6400 mono_mb_emit_stloc (mb, intptr_handle_slot);
6402 /* Create return value */
6403 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6404 mono_mb_emit_stloc (mb, 3);
6406 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6407 mono_mb_emit_ldloc (mb, 3);
6408 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6409 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6410 mono_mb_emit_byte (mb, CEE_STIND_I);
6414 case MARSHAL_ACTION_MANAGED_CONV_IN:
6415 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6418 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6419 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6422 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6423 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6426 printf ("Unhandled case for MarshalAction: %d\n", action);
6433 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6434 MonoMarshalSpec *spec, int conv_arg,
6435 MonoType **conv_arg_type, MarshalAction action)
6437 MonoMethodBuilder *mb = m->mb;
6440 case MARSHAL_ACTION_CONV_IN: {
6441 MonoType *intptr_type;
6443 intptr_type = &mono_defaults.int_class->byval_arg;
6444 conv_arg = mono_mb_add_local (mb, intptr_type);
6445 *conv_arg_type = intptr_type;
6448 mono_mb_emit_exception_marshal_directive (mb,
6449 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6452 mono_mb_emit_ldarg_addr (mb, argnum);
6453 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6454 mono_mb_emit_byte (mb, CEE_ADD);
6455 mono_mb_emit_byte (mb, CEE_LDIND_I);
6456 mono_mb_emit_stloc (mb, conv_arg);
6460 case MARSHAL_ACTION_PUSH:
6461 mono_mb_emit_ldloc (mb, conv_arg);
6464 case MARSHAL_ACTION_CONV_OUT: {
6465 /* no resource release required */
6469 case MARSHAL_ACTION_CONV_RESULT: {
6470 mono_mb_emit_exception_marshal_directive (mb,
6471 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6475 case MARSHAL_ACTION_MANAGED_CONV_IN:
6476 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6479 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6480 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6483 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6484 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6487 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6494 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6495 MonoMarshalSpec *spec,
6496 int conv_arg, MonoType **conv_arg_type,
6497 MarshalAction action)
6499 MonoMethodBuilder *mb = m->mb;
6500 MonoClass *klass = t->data.klass;
6503 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6504 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6508 case MARSHAL_ACTION_CONV_IN:
6509 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6510 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6512 m->orig_conv_args [argnum] = 0;
6514 if (klass->delegate) {
6515 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6516 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6517 mono_mb_emit_exception_marshal_directive (mb, msg);
6519 mono_mb_emit_ldarg (mb, argnum);
6520 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6521 mono_mb_emit_stloc (mb, conv_arg);
6523 } else if (klass == mono_defaults.stringbuilder_class) {
6524 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6525 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6527 g_assert (!t->byref);
6528 mono_mb_emit_ldarg (mb, argnum);
6531 mono_mb_emit_icall (mb, conv_to_icall (conv));
6533 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6534 MonoException *exc = mono_get_exception_not_implemented (msg);
6537 mono_raise_exception (exc);
6540 mono_mb_emit_stloc (mb, conv_arg);
6541 } else if (klass->blittable) {
6542 mono_mb_emit_byte (mb, CEE_LDNULL);
6543 mono_mb_emit_stloc (mb, conv_arg);
6545 mono_mb_emit_ldarg (mb, argnum);
6546 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6548 mono_mb_emit_ldarg (mb, argnum);
6549 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6550 mono_mb_emit_stloc (mb, conv_arg);
6552 mono_mb_patch_branch (mb, pos);
6555 mono_mb_emit_byte (mb, CEE_LDNULL);
6556 mono_mb_emit_stloc (mb, conv_arg);
6559 /* we dont need any conversions for out parameters */
6560 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6563 mono_mb_emit_ldarg (mb, argnum);
6564 mono_mb_emit_byte (mb, CEE_LDIND_I);
6567 mono_mb_emit_ldarg (mb, argnum);
6568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6569 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6572 /* store the address of the source into local variable 0 */
6573 mono_mb_emit_stloc (mb, 0);
6574 mono_mb_emit_ldloc (mb, 0);
6575 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6577 /* allocate space for the native struct and store the address */
6578 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6579 mono_mb_emit_byte (mb, CEE_PREFIX1);
6580 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6581 mono_mb_emit_stloc (mb, conv_arg);
6584 /* Need to store the original buffer so we can free it later */
6585 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6586 mono_mb_emit_ldloc (mb, conv_arg);
6587 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6590 /* set the src_ptr */
6591 mono_mb_emit_ldloc (mb, 0);
6592 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6593 mono_mb_emit_stloc (mb, 0);
6596 mono_mb_emit_ldloc (mb, conv_arg);
6597 mono_mb_emit_stloc (mb, 1);
6599 /* emit valuetype conversion code */
6600 emit_struct_conv (mb, klass, FALSE);
6602 mono_mb_patch_branch (mb, pos);
6606 case MARSHAL_ACTION_CONV_OUT:
6607 if (klass == mono_defaults.stringbuilder_class) {
6609 MonoMarshalNative encoding;
6610 MonoMarshalConv conv;
6612 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6613 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6615 g_assert (!t->byref);
6616 g_assert (encoding != -1);
6618 mono_mb_emit_ldarg (mb, argnum);
6619 mono_mb_emit_ldloc (mb, conv_arg);
6621 mono_mb_emit_icall (mb, conv_to_icall (conv));
6624 mono_mb_emit_ldloc (mb, conv_arg);
6625 mono_mb_emit_icall (mb, mono_marshal_free);
6630 if (klass->delegate) {
6632 mono_mb_emit_ldarg (mb, argnum);
6633 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6634 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6635 mono_mb_emit_ldloc (mb, conv_arg);
6636 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6637 mono_mb_emit_byte (mb, CEE_STIND_REF);
6642 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6643 /* allocate a new object */
6644 mono_mb_emit_ldarg (mb, argnum);
6645 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6646 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6647 mono_mb_emit_byte (mb, CEE_STIND_REF);
6650 /* dst = *argument */
6651 mono_mb_emit_ldarg (mb, argnum);
6654 mono_mb_emit_byte (mb, CEE_LDIND_I);
6656 mono_mb_emit_stloc (mb, 1);
6658 mono_mb_emit_ldloc (mb, 1);
6659 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6661 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6662 mono_mb_emit_ldloc (mb, 1);
6663 mono_mb_emit_icon (mb, sizeof (MonoObject));
6664 mono_mb_emit_byte (mb, CEE_ADD);
6665 mono_mb_emit_stloc (mb, 1);
6667 /* src = tmp_locals [i] */
6668 mono_mb_emit_ldloc (mb, conv_arg);
6669 mono_mb_emit_stloc (mb, 0);
6671 /* emit valuetype conversion code */
6672 emit_struct_conv (mb, t->data.klass, TRUE);
6674 /* Free the structure returned by the native code */
6675 emit_struct_free (mb, klass, conv_arg);
6677 if (m->orig_conv_args [argnum]) {
6679 * If the native function changed the pointer, then free
6680 * the original structure plus the new pointer.
6682 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6683 mono_mb_emit_ldloc (mb, conv_arg);
6684 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6686 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6687 g_assert (m->orig_conv_args [argnum]);
6689 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6692 mono_mb_emit_ldloc (mb, conv_arg);
6693 mono_mb_emit_icall (mb, g_free);
6695 mono_mb_patch_branch (mb, pos2);
6699 /* Free the original structure passed to native code */
6700 emit_struct_free (mb, klass, conv_arg);
6702 mono_mb_patch_branch (mb, pos);
6705 case MARSHAL_ACTION_PUSH:
6707 mono_mb_emit_ldloc_addr (mb, conv_arg);
6709 mono_mb_emit_ldloc (mb, conv_arg);
6712 case MARSHAL_ACTION_CONV_RESULT:
6713 if (klass->delegate) {
6714 g_assert (!t->byref);
6715 mono_mb_emit_stloc (mb, 0);
6716 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6717 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6718 mono_mb_emit_ldloc (mb, 0);
6719 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6720 mono_mb_emit_stloc (mb, 3);
6723 mono_mb_emit_stloc (mb, 0);
6725 /* Make a copy since emit_conv modifies local 0 */
6726 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6727 mono_mb_emit_ldloc (mb, 0);
6728 mono_mb_emit_stloc (mb, loc);
6730 mono_mb_emit_byte (mb, CEE_LDNULL);
6731 mono_mb_emit_stloc (mb, 3);
6733 mono_mb_emit_ldloc (mb, 0);
6734 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6736 /* allocate result object */
6738 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6739 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6740 mono_mb_emit_stloc (mb, 3);
6744 mono_mb_emit_ldloc (mb, 3);
6745 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6746 mono_mb_emit_stloc (mb, 1);
6748 /* emit conversion code */
6749 emit_struct_conv (mb, klass, TRUE);
6751 emit_struct_free (mb, klass, loc);
6753 /* Free the pointer allocated by unmanaged code */
6754 mono_mb_emit_ldloc (mb, loc);
6755 mono_mb_emit_icall (mb, g_free);
6756 mono_mb_patch_branch (mb, pos);
6760 case MARSHAL_ACTION_MANAGED_CONV_IN:
6761 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6763 if (klass->delegate) {
6764 g_assert (!t->byref);
6765 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6766 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6767 mono_mb_emit_ldarg (mb, argnum);
6768 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6769 mono_mb_emit_stloc (mb, conv_arg);
6773 /* The class can not have an automatic layout */
6774 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6775 mono_mb_emit_auto_layout_exception (mb, klass);
6779 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6780 mono_mb_emit_byte (mb, CEE_LDNULL);
6781 mono_mb_emit_stloc (mb, conv_arg);
6786 mono_mb_emit_ldarg (mb, argnum);
6790 /* Check for NULL and raise an exception */
6791 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6793 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6795 mono_mb_patch_branch (mb, pos2);
6796 mono_mb_emit_ldarg (mb, argnum);
6797 mono_mb_emit_byte (mb, CEE_LDIND_I);
6800 mono_mb_emit_stloc (mb, 0);
6802 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6803 mono_mb_emit_stloc (mb, conv_arg);
6805 mono_mb_emit_ldloc (mb, 0);
6806 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6808 /* Create and set dst */
6809 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6810 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6811 mono_mb_emit_stloc (mb, conv_arg);
6812 mono_mb_emit_ldloc (mb, conv_arg);
6813 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6814 mono_mb_emit_stloc (mb, 1);
6816 /* emit valuetype conversion code */
6817 emit_struct_conv (mb, klass, TRUE);
6819 mono_mb_patch_branch (mb, pos);
6822 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6824 /* Check for null */
6825 mono_mb_emit_ldloc (mb, conv_arg);
6826 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6827 mono_mb_emit_ldarg (mb, argnum);
6828 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6829 mono_mb_emit_byte (mb, CEE_STIND_REF);
6830 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6832 mono_mb_patch_branch (mb, pos);
6835 mono_mb_emit_ldloc (mb, conv_arg);
6836 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6837 mono_mb_emit_stloc (mb, 0);
6839 /* Allocate and set dest */
6840 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6841 mono_mb_emit_byte (mb, CEE_CONV_I);
6842 mono_mb_emit_icall (mb, mono_marshal_alloc);
6843 mono_mb_emit_stloc (mb, 1);
6845 /* Update argument pointer */
6846 mono_mb_emit_ldarg (mb, argnum);
6847 mono_mb_emit_ldloc (mb, 1);
6848 mono_mb_emit_byte (mb, CEE_STIND_I);
6850 /* emit valuetype conversion code */
6851 emit_struct_conv (mb, klass, FALSE);
6853 mono_mb_patch_branch (mb, pos2);
6855 /* byval [Out] marshalling */
6857 /* FIXME: Handle null */
6860 mono_mb_emit_ldloc (mb, conv_arg);
6861 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6862 mono_mb_emit_stloc (mb, 0);
6865 mono_mb_emit_ldarg (mb, argnum);
6866 mono_mb_emit_stloc (mb, 1);
6868 /* emit valuetype conversion code */
6869 emit_struct_conv (mb, klass, FALSE);
6873 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6874 if (klass->delegate) {
6875 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6876 mono_mb_emit_stloc (mb, 3);
6880 /* The class can not have an automatic layout */
6881 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6882 mono_mb_emit_auto_layout_exception (mb, klass);
6886 mono_mb_emit_stloc (mb, 0);
6887 /* Check for null */
6888 mono_mb_emit_ldloc (mb, 0);
6889 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6890 mono_mb_emit_byte (mb, CEE_LDNULL);
6891 mono_mb_emit_stloc (mb, 3);
6892 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6894 mono_mb_patch_branch (mb, pos);
6897 mono_mb_emit_ldloc (mb, 0);
6898 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6899 mono_mb_emit_stloc (mb, 0);
6901 /* Allocate and set dest */
6902 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6903 mono_mb_emit_byte (mb, CEE_CONV_I);
6904 mono_mb_emit_icall (mb, mono_marshal_alloc);
6905 mono_mb_emit_byte (mb, CEE_DUP);
6906 mono_mb_emit_stloc (mb, 1);
6907 mono_mb_emit_stloc (mb, 3);
6909 emit_struct_conv (mb, klass, FALSE);
6911 mono_mb_patch_branch (mb, pos2);
6915 g_assert_not_reached ();
6922 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
6923 MonoMarshalSpec *spec,
6924 int conv_arg, MonoType **conv_arg_type,
6925 MarshalAction action)
6927 MonoMethodBuilder *mb = m->mb;
6928 MonoClass *klass = t->data.klass;
6929 static MonoMethod* get_object_for_iunknown = NULL;
6930 static MonoMethod* get_iunknown_for_object_internal = NULL;
6931 static MonoMethod* get_com_interface_for_object_internal = NULL;
6932 static MonoMethod* get_idispatch_for_object_internal = NULL;
6933 static MonoMethod* marshal_release = NULL;
6934 static MonoMethod* AddRef = NULL;
6935 if (!get_object_for_iunknown)
6936 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
6937 if (!get_iunknown_for_object_internal)
6938 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
6939 if (!get_idispatch_for_object_internal)
6940 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
6941 if (!get_com_interface_for_object_internal)
6942 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
6943 if (!marshal_release)
6944 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
6946 /* COM types are initialized lazily */
6947 mono_init_com_types ();
6950 case MARSHAL_ACTION_CONV_IN: {
6951 guint32 pos_null = 0;
6953 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6954 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6956 mono_mb_emit_ptr (mb, NULL);
6957 mono_mb_emit_stloc (mb, conv_arg);
6959 /* we dont need any conversions for out parameters */
6960 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6963 mono_mb_emit_ldarg (mb, argnum);
6965 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6966 /* if null just break, conv arg was already inited to 0 */
6967 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6969 mono_mb_emit_ldarg (mb, argnum);
6971 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6973 if (klass && klass != mono_defaults.object_class) {
6974 mono_mb_emit_ptr (mb, t);
6975 mono_mb_emit_icall (mb, type_from_handle);
6976 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
6978 else if (spec->native == MONO_NATIVE_IUNKNOWN)
6979 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6980 else if (spec->native == MONO_NATIVE_IDISPATCH)
6981 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
6982 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
6983 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6985 g_assert_not_reached ();
6986 mono_mb_emit_stloc (mb, conv_arg);
6987 mono_mb_patch_short_branch (mb, pos_null);
6991 case MARSHAL_ACTION_CONV_OUT: {
6992 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6994 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
6995 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6997 mono_mb_emit_ldarg (mb, argnum);
6998 mono_mb_emit_byte (mb, CEE_LDNULL);
6999 mono_mb_emit_byte (mb, CEE_STIND_REF);
7001 mono_mb_emit_ldloc (mb, conv_arg);
7002 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7004 mono_mb_emit_ldloc (mb, conv_arg);
7005 mono_mb_emit_icon (mb, TRUE);
7006 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7007 mono_mb_emit_stloc (mb, ccw_obj);
7008 mono_mb_emit_ldloc (mb, ccw_obj);
7009 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7011 mono_mb_emit_ldarg (mb, argnum);
7012 mono_mb_emit_ldloc (mb, conv_arg);
7013 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7015 if (klass && klass != mono_defaults.object_class)
7016 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7017 mono_mb_emit_byte (mb, CEE_STIND_REF);
7019 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7021 /* is already managed object */
7022 mono_mb_patch_short_branch (mb, pos_ccw);
7023 mono_mb_emit_ldarg (mb, argnum);
7024 mono_mb_emit_ldloc (mb, ccw_obj);
7026 if (klass && klass != mono_defaults.object_class)
7027 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7028 mono_mb_emit_byte (mb, CEE_STIND_REF);
7030 mono_mb_patch_short_branch (mb, pos_end);
7032 /* need to call Release to follow COM rules of ownership */
7033 mono_mb_emit_ldloc (mb, conv_arg);
7034 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7035 mono_mb_emit_byte (mb, CEE_POP);
7038 mono_mb_patch_short_branch (mb, pos_null);
7042 case MARSHAL_ACTION_PUSH:
7044 mono_mb_emit_ldloc_addr (mb, conv_arg);
7046 mono_mb_emit_ldloc (mb, conv_arg);
7049 case MARSHAL_ACTION_CONV_RESULT: {
7050 int ccw_obj, ret_ptr;
7051 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7052 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7053 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7055 /* store return value */
7056 mono_mb_emit_stloc (mb, ret_ptr);
7058 mono_mb_emit_ldloc (mb, ret_ptr);
7059 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7061 mono_mb_emit_ldloc (mb, ret_ptr);
7062 mono_mb_emit_icon (mb, TRUE);
7063 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7064 mono_mb_emit_stloc (mb, ccw_obj);
7065 mono_mb_emit_ldloc (mb, ccw_obj);
7066 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7068 mono_mb_emit_ldloc (mb, ret_ptr);
7069 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7071 if (klass && klass != mono_defaults.object_class)
7072 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7073 mono_mb_emit_stloc (mb, 3);
7075 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7077 /* is already managed object */
7078 mono_mb_patch_short_branch (mb, pos_ccw);
7079 mono_mb_emit_ldloc (mb, ccw_obj);
7081 if (klass && klass != mono_defaults.object_class)
7082 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7083 mono_mb_emit_stloc (mb, 3);
7085 mono_mb_patch_short_branch (mb, pos_end);
7087 /* need to call Release to follow COM rules of ownership */
7088 mono_mb_emit_ldloc (mb, ret_ptr);
7089 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7090 mono_mb_emit_byte (mb, CEE_POP);
7093 mono_mb_patch_short_branch (mb, pos_null);
7097 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7099 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7100 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7102 klass = mono_class_from_mono_type (t);
7103 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7104 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7106 mono_mb_emit_byte (mb, CEE_LDNULL);
7107 mono_mb_emit_stloc (mb, conv_arg);
7108 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7111 mono_mb_emit_ldarg (mb, argnum);
7113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7114 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7116 mono_mb_emit_ldarg (mb, argnum);
7118 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7119 mono_mb_emit_icon (mb, TRUE);
7120 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7121 mono_mb_emit_stloc (mb, ccw_obj);
7122 mono_mb_emit_ldloc (mb, ccw_obj);
7123 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7126 mono_mb_emit_ldarg (mb, argnum);
7128 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7129 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7131 if (klass && klass != mono_defaults.object_class)
7132 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7133 mono_mb_emit_stloc (mb, conv_arg);
7134 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7136 /* is already managed object */
7137 mono_mb_patch_short_branch (mb, pos_ccw);
7138 mono_mb_emit_ldloc (mb, ccw_obj);
7139 if (klass && klass != mono_defaults.object_class)
7140 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7141 mono_mb_emit_stloc (mb, conv_arg);
7143 mono_mb_patch_short_branch (mb, pos_end);
7145 mono_mb_patch_short_branch (mb, pos_null);
7149 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7150 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7151 guint32 pos_null = 0;
7154 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7156 mono_mb_emit_ldloc (mb, conv_arg);
7157 /* if null just break, conv arg was already inited to 0 */
7158 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7160 /* to store later */
7161 mono_mb_emit_ldarg (mb, argnum);
7162 mono_mb_emit_ldloc (mb, conv_arg);
7163 if (klass && klass != mono_defaults.object_class) {
7164 mono_mb_emit_ptr (mb, t);
7165 mono_mb_emit_icall (mb, type_from_handle);
7166 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7168 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7169 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7170 else if (spec->native == MONO_NATIVE_IDISPATCH)
7171 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7172 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7173 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7175 g_assert_not_reached ();
7176 mono_mb_emit_byte (mb, CEE_STIND_I);
7178 mono_mb_emit_ldarg (mb, argnum);
7179 mono_mb_emit_byte (mb, CEE_LDIND_I);
7180 mono_mb_emit_managed_call (mb, AddRef, NULL);
7181 mono_mb_emit_byte (mb, CEE_POP);
7183 mono_mb_patch_short_branch (mb, pos_null);
7188 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7189 guint32 pos_null = 0;
7191 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7194 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7196 /* store return value */
7197 mono_mb_emit_stloc (mb, ccw_obj);
7199 mono_mb_emit_ldloc (mb, ccw_obj);
7201 /* if null just break, conv arg was already inited to 0 */
7202 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7204 /* to store later */
7205 mono_mb_emit_ldloc (mb, ccw_obj);
7206 if (klass && klass != mono_defaults.object_class) {
7207 mono_mb_emit_ptr (mb, t);
7208 mono_mb_emit_icall (mb, type_from_handle);
7209 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7211 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7212 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7213 else if (spec->native == MONO_NATIVE_IDISPATCH)
7214 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7215 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7216 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7218 g_assert_not_reached ();
7219 mono_mb_emit_stloc (mb, 3);
7220 mono_mb_emit_ldloc (mb, 3);
7222 mono_mb_emit_managed_call (mb, AddRef, NULL);
7223 mono_mb_emit_byte (mb, CEE_POP);
7225 mono_mb_patch_short_branch (mb, pos_null);
7230 g_assert_not_reached ();
7237 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7238 MonoMarshalSpec *spec,
7239 int conv_arg, MonoType **conv_arg_type,
7240 MarshalAction action)
7242 MonoMethodBuilder *mb = m->mb;
7243 static MonoMethod *get_object_for_native_variant = NULL;
7244 static MonoMethod *get_native_variant_for_object = NULL;
7246 mono_init_com_types ();
7248 if (!get_object_for_native_variant)
7249 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7250 g_assert (get_object_for_native_variant);
7252 if (!get_native_variant_for_object)
7253 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7254 g_assert (get_native_variant_for_object);
7257 case MARSHAL_ACTION_CONV_IN: {
7258 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7261 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7263 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7265 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7268 mono_mb_emit_ldarg (mb, argnum);
7270 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7271 mono_mb_emit_ldloc_addr (mb, conv_arg);
7272 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7276 case MARSHAL_ACTION_CONV_OUT: {
7277 static MonoMethod *variant_clear = NULL;
7280 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7281 g_assert (variant_clear);
7285 mono_mb_emit_ldarg (mb, argnum);
7286 mono_mb_emit_ldloc_addr (mb, conv_arg);
7287 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7288 mono_mb_emit_byte (mb, CEE_STIND_REF);
7291 mono_mb_emit_ldloc_addr (mb, conv_arg);
7292 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7296 case MARSHAL_ACTION_PUSH:
7298 mono_mb_emit_ldloc_addr (mb, conv_arg);
7300 mono_mb_emit_ldloc (mb, conv_arg);
7303 case MARSHAL_ACTION_CONV_RESULT: {
7304 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7305 mono_mb_emit_exception_marshal_directive (mb, msg);
7309 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7310 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7313 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7315 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7317 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7321 mono_mb_emit_ldarg (mb, argnum);
7323 mono_mb_emit_ldarg_addr (mb, argnum);
7324 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7325 mono_mb_emit_stloc (mb, conv_arg);
7329 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7331 mono_mb_emit_ldloc (mb, conv_arg);
7332 mono_mb_emit_ldarg (mb, argnum);
7333 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7338 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7339 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7340 mono_mb_emit_exception_marshal_directive (mb, msg);
7345 g_assert_not_reached ();
7352 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7353 MonoMarshalSpec *spec,
7354 int conv_arg, MonoType **conv_arg_type,
7355 MarshalAction action)
7357 MonoMethodBuilder *mb = m->mb;
7358 MonoClass *klass = mono_class_from_mono_type (t);
7359 gboolean need_convert, need_free;
7360 MonoMarshalNative encoding;
7362 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7365 case MARSHAL_ACTION_CONV_IN:
7366 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7367 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7369 if (klass->element_class->blittable) {
7370 mono_mb_emit_ldarg (mb, argnum);
7372 mono_mb_emit_byte (mb, CEE_LDIND_I);
7373 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7374 mono_mb_emit_stloc (mb, conv_arg);
7377 guint32 label1, label2, label3;
7378 int index_var, src_var, dest_ptr, esize;
7379 MonoMarshalConv conv;
7380 gboolean is_string = FALSE;
7382 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7384 eklass = klass->element_class;
7386 if (eklass == mono_defaults.string_class) {
7388 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7390 else if (eklass == mono_defaults.stringbuilder_class) {
7392 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7397 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7398 mono_mb_emit_ldarg (mb, argnum);
7400 mono_mb_emit_byte (mb, CEE_LDIND_I);
7401 mono_mb_emit_stloc (mb, src_var);
7404 mono_mb_emit_ldloc (mb, src_var);
7405 mono_mb_emit_stloc (mb, conv_arg);
7406 mono_mb_emit_ldloc (mb, src_var);
7407 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7411 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7412 MonoException *exc = mono_get_exception_not_implemented (msg);
7415 mono_raise_exception (exc);
7420 esize = sizeof (gpointer);
7422 esize = mono_class_native_size (eklass, NULL);
7424 /* allocate space for the native struct and store the address */
7425 mono_mb_emit_icon (mb, esize);
7426 mono_mb_emit_ldloc (mb, src_var);
7427 mono_mb_emit_byte (mb, CEE_LDLEN);
7429 if (eklass == mono_defaults.string_class) {
7430 /* Make the array bigger for the terminating null */
7431 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7432 mono_mb_emit_byte (mb, CEE_ADD);
7434 mono_mb_emit_byte (mb, CEE_MUL);
7435 mono_mb_emit_byte (mb, CEE_PREFIX1);
7436 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7437 mono_mb_emit_stloc (mb, conv_arg);
7439 mono_mb_emit_ldloc (mb, conv_arg);
7440 mono_mb_emit_stloc (mb, dest_ptr);
7442 /* Emit marshalling loop */
7443 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7444 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7445 mono_mb_emit_stloc (mb, index_var);
7446 label2 = mono_mb_get_label (mb);
7447 mono_mb_emit_ldloc (mb, index_var);
7448 mono_mb_emit_ldloc (mb, src_var);
7449 mono_mb_emit_byte (mb, CEE_LDLEN);
7450 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7452 /* Emit marshalling code */
7455 mono_mb_emit_ldloc (mb, dest_ptr);
7456 mono_mb_emit_ldloc (mb, src_var);
7457 mono_mb_emit_ldloc (mb, index_var);
7458 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7459 mono_mb_emit_icall (mb, conv_to_icall (conv));
7460 mono_mb_emit_byte (mb, CEE_STIND_I);
7462 /* set the src_ptr */
7463 mono_mb_emit_ldloc (mb, src_var);
7464 mono_mb_emit_ldloc (mb, index_var);
7465 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7466 mono_mb_emit_stloc (mb, 0);
7469 mono_mb_emit_ldloc (mb, dest_ptr);
7470 mono_mb_emit_stloc (mb, 1);
7472 /* emit valuetype conversion code */
7473 emit_struct_conv (mb, eklass, FALSE);
7476 mono_mb_emit_add_to_local (mb, index_var, 1);
7477 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7479 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7481 mono_mb_patch_branch (mb, label3);
7483 if (eklass == mono_defaults.string_class) {
7484 /* Null terminate */
7485 mono_mb_emit_ldloc (mb, dest_ptr);
7486 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7487 mono_mb_emit_byte (mb, CEE_STIND_REF);
7490 mono_mb_patch_branch (mb, label1);
7495 case MARSHAL_ACTION_CONV_OUT:
7496 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7497 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);
7498 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7501 if (need_convert || need_free) {
7502 /* FIXME: Optimize blittable case */
7504 guint32 label1, label2, label3;
7505 int index_var, src_ptr, loc, esize;
7507 eklass = klass->element_class;
7508 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7509 esize = sizeof (gpointer);
7511 esize = mono_class_native_size (eklass, NULL);
7512 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7513 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7516 mono_mb_emit_ldarg (mb, argnum);
7518 mono_mb_emit_byte (mb, CEE_LDIND_I);
7519 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7521 mono_mb_emit_ldloc (mb, conv_arg);
7522 mono_mb_emit_stloc (mb, src_ptr);
7524 /* Emit marshalling loop */
7525 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7526 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7527 mono_mb_emit_stloc (mb, index_var);
7528 label2 = mono_mb_get_label (mb);
7529 mono_mb_emit_ldloc (mb, index_var);
7530 mono_mb_emit_ldarg (mb, argnum);
7532 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7533 mono_mb_emit_byte (mb, CEE_LDLEN);
7534 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7536 /* Emit marshalling code */
7538 if (eklass == mono_defaults.stringbuilder_class) {
7539 gboolean need_free2;
7540 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7542 g_assert (conv != -1);
7545 mono_mb_emit_ldarg (mb, argnum);
7547 mono_mb_emit_byte (mb, CEE_LDIND_I);
7548 mono_mb_emit_ldloc (mb, index_var);
7549 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7552 mono_mb_emit_ldloc (mb, src_ptr);
7553 mono_mb_emit_byte (mb, CEE_LDIND_I);
7555 mono_mb_emit_icall (mb, conv_to_icall (conv));
7559 mono_mb_emit_ldloc (mb, src_ptr);
7560 mono_mb_emit_byte (mb, CEE_LDIND_I);
7562 mono_mb_emit_icall (mb, mono_marshal_free);
7565 else if (eklass == mono_defaults.string_class) {
7568 mono_mb_emit_ldloc (mb, src_ptr);
7569 mono_mb_emit_byte (mb, CEE_LDIND_I);
7571 mono_mb_emit_icall (mb, mono_marshal_free);
7576 /* set the src_ptr */
7577 mono_mb_emit_ldloc (mb, src_ptr);
7578 mono_mb_emit_stloc (mb, 0);
7581 mono_mb_emit_ldarg (mb, argnum);
7583 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7584 mono_mb_emit_ldloc (mb, index_var);
7585 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7586 mono_mb_emit_stloc (mb, 1);
7588 /* emit valuetype conversion code */
7589 emit_struct_conv (mb, eklass, TRUE);
7593 mono_mb_emit_ldloc (mb, src_ptr);
7594 mono_mb_emit_stloc (mb, loc);
7595 mono_mb_emit_ldloc (mb, loc);
7597 emit_struct_free (mb, eklass, loc);
7601 mono_mb_emit_add_to_local (mb, index_var, 1);
7602 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7604 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7606 mono_mb_patch_branch (mb, label1);
7607 mono_mb_patch_branch (mb, label3);
7611 case MARSHAL_ACTION_PUSH:
7613 mono_mb_emit_ldloc_addr (mb, conv_arg);
7615 mono_mb_emit_ldloc (mb, conv_arg);
7618 case MARSHAL_ACTION_CONV_RESULT:
7619 /* fixme: we need conversions here */
7620 mono_mb_emit_stloc (mb, 3);
7623 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7625 guint32 label1, label2, label3;
7626 int index_var, src_ptr, loc, esize, param_num, num_elem;
7627 MonoMarshalConv conv;
7628 gboolean is_string = FALSE;
7630 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7631 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7634 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7635 mono_mb_emit_exception_marshal_directive (mb, msg);
7639 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7640 mono_mb_emit_exception_marshal_directive (mb, msg);
7643 if (spec->native != MONO_NATIVE_LPARRAY) {
7644 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7645 mono_mb_emit_exception_marshal_directive (mb, msg);
7649 /* FIXME: t is from the method which is wrapped, not the delegate type */
7650 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7652 param_num = spec->data.array_data.param_num;
7653 num_elem = spec->data.array_data.num_elem;
7654 if (spec->data.array_data.elem_mult == 0)
7655 /* param_num is not specified */
7658 if (param_num == -1) {
7659 if (num_elem <= 0) {
7660 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7661 mono_mb_emit_exception_marshal_directive (mb, msg);
7666 /* FIXME: Optimize blittable case */
7668 eklass = klass->element_class;
7669 if (eklass == mono_defaults.string_class) {
7671 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7673 else if (eklass == mono_defaults.stringbuilder_class) {
7675 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7680 mono_marshal_load_type_info (eklass);
7683 esize = sizeof (gpointer);
7685 esize = mono_class_native_size (eklass, NULL);
7686 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7687 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7689 mono_mb_emit_byte (mb, CEE_LDNULL);
7690 mono_mb_emit_stloc (mb, conv_arg);
7692 /* Check param index */
7693 if (param_num != -1) {
7694 if (param_num >= m->sig->param_count) {
7695 char *msg = g_strdup ("Array size control parameter index is out of range.");
7696 mono_mb_emit_exception_marshal_directive (mb, msg);
7699 switch (m->sig->params [param_num]->type) {
7712 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7713 mono_mb_emit_exception_marshal_directive (mb, msg);
7720 mono_mb_emit_ldarg (mb, argnum);
7721 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7723 mono_mb_emit_ldarg (mb, argnum);
7724 mono_mb_emit_stloc (mb, src_ptr);
7726 /* Create managed array */
7728 * The LPArray marshalling spec says that sometimes param_num starts
7729 * from 1, sometimes it starts from 0. But MS seems to allways start
7733 if (param_num == -1)
7734 mono_mb_emit_icon (mb, num_elem);
7736 /* FIXME: Add the two together */
7737 mono_mb_emit_ldarg (mb, param_num);
7739 mono_mb_emit_icon (mb, num_elem);
7740 mono_mb_emit_byte (mb, CEE_ADD);
7744 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7745 mono_mb_emit_stloc (mb, conv_arg);
7747 if (eklass->blittable) {
7748 mono_mb_emit_ldloc (mb, conv_arg);
7749 mono_mb_emit_byte (mb, CEE_CONV_I);
7750 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7751 mono_mb_emit_byte (mb, CEE_ADD);
7752 mono_mb_emit_ldarg (mb, argnum);
7753 mono_mb_emit_ldloc (mb, conv_arg);
7754 mono_mb_emit_byte (mb, CEE_LDLEN);
7755 mono_mb_emit_icon (mb, esize);
7756 mono_mb_emit_byte (mb, CEE_MUL);
7757 mono_mb_emit_byte (mb, CEE_PREFIX1);
7758 mono_mb_emit_byte (mb, CEE_CPBLK);
7762 /* Emit marshalling loop */
7763 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7764 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7765 mono_mb_emit_stloc (mb, index_var);
7766 label2 = mono_mb_get_label (mb);
7767 mono_mb_emit_ldloc (mb, index_var);
7768 mono_mb_emit_ldloc (mb, conv_arg);
7769 mono_mb_emit_byte (mb, CEE_LDLEN);
7770 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7772 /* Emit marshalling code */
7774 g_assert (conv != -1);
7776 mono_mb_emit_ldloc (mb, conv_arg);
7777 mono_mb_emit_ldloc (mb, index_var);
7779 mono_mb_emit_ldloc (mb, src_ptr);
7780 mono_mb_emit_byte (mb, CEE_LDIND_I);
7782 mono_mb_emit_icall (mb, conv_to_icall (conv));
7783 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7786 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7787 mono_mb_emit_exception_marshal_directive (mb, msg);
7791 mono_mb_emit_add_to_local (mb, index_var, 1);
7792 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7794 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7796 mono_mb_patch_branch (mb, label1);
7797 mono_mb_patch_branch (mb, label3);
7801 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7803 guint32 label1, label2, label3;
7804 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7805 MonoMarshalConv conv;
7806 gboolean is_string = FALSE;
7809 /* Already handled in CONV_IN */
7812 /* These are already checked in CONV_IN */
7813 g_assert (!t->byref);
7814 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7815 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7817 param_num = spec->data.array_data.param_num;
7818 num_elem = spec->data.array_data.num_elem;
7820 if (spec->data.array_data.elem_mult == 0)
7821 /* param_num is not specified */
7824 if (param_num == -1) {
7825 if (num_elem <= 0) {
7826 g_assert_not_reached ();
7830 /* FIXME: Optimize blittable case */
7832 eklass = klass->element_class;
7833 if (eklass == mono_defaults.string_class) {
7835 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7837 else if (eklass == mono_defaults.stringbuilder_class) {
7839 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7844 mono_marshal_load_type_info (eklass);
7847 esize = sizeof (gpointer);
7849 esize = mono_class_native_size (eklass, NULL);
7851 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7852 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7855 mono_mb_emit_ldloc (mb, conv_arg);
7856 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7858 mono_mb_emit_ldarg (mb, argnum);
7859 mono_mb_emit_stloc (mb, dest_ptr);
7861 if (eklass->blittable) {
7863 mono_mb_emit_ldarg (mb, argnum);
7865 mono_mb_emit_ldloc (mb, conv_arg);
7866 mono_mb_emit_byte (mb, CEE_CONV_I);
7867 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7868 mono_mb_emit_byte (mb, CEE_ADD);
7870 mono_mb_emit_ldloc (mb, conv_arg);
7871 mono_mb_emit_byte (mb, CEE_LDLEN);
7872 mono_mb_emit_icon (mb, esize);
7873 mono_mb_emit_byte (mb, CEE_MUL);
7874 mono_mb_emit_byte (mb, CEE_PREFIX1);
7875 mono_mb_emit_byte (mb, CEE_CPBLK);
7879 /* Emit marshalling loop */
7880 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7881 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7882 mono_mb_emit_stloc (mb, index_var);
7883 label2 = mono_mb_get_label (mb);
7884 mono_mb_emit_ldloc (mb, index_var);
7885 mono_mb_emit_ldloc (mb, conv_arg);
7886 mono_mb_emit_byte (mb, CEE_LDLEN);
7887 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7889 /* Emit marshalling code */
7891 g_assert (conv != -1);
7894 mono_mb_emit_ldloc (mb, dest_ptr);
7897 mono_mb_emit_ldloc (mb, conv_arg);
7898 mono_mb_emit_ldloc (mb, index_var);
7900 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7902 mono_mb_emit_icall (mb, conv_to_icall (conv));
7903 mono_mb_emit_byte (mb, CEE_STIND_I);
7906 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7907 mono_mb_emit_exception_marshal_directive (mb, msg);
7911 mono_mb_emit_add_to_local (mb, index_var, 1);
7912 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7914 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7916 mono_mb_patch_branch (mb, label1);
7917 mono_mb_patch_branch (mb, label3);
7921 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7923 guint32 label1, label2, label3;
7924 int index_var, src, dest, esize;
7925 MonoMarshalConv conv = -1;
7926 gboolean is_string = FALSE;
7928 g_assert (!t->byref);
7930 eklass = klass->element_class;
7932 mono_marshal_load_type_info (eklass);
7934 if (eklass == mono_defaults.string_class) {
7936 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7939 g_assert_not_reached ();
7943 esize = sizeof (gpointer);
7945 esize = mono_class_native_size (eklass, NULL);
7947 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7948 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7950 mono_mb_emit_stloc (mb, src);
7951 mono_mb_emit_ldloc (mb, src);
7952 mono_mb_emit_stloc (mb, 3);
7954 /* Check for null */
7955 mono_mb_emit_ldloc (mb, src);
7956 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7958 /* Allocate native array */
7959 mono_mb_emit_icon (mb, esize);
7960 mono_mb_emit_ldloc (mb, src);
7961 mono_mb_emit_byte (mb, CEE_LDLEN);
7963 if (eklass == mono_defaults.string_class) {
7964 /* Make the array bigger for the terminating null */
7965 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7966 mono_mb_emit_byte (mb, CEE_ADD);
7968 mono_mb_emit_byte (mb, CEE_MUL);
7969 mono_mb_emit_icall (mb, mono_marshal_alloc);
7970 mono_mb_emit_stloc (mb, dest);
7971 mono_mb_emit_ldloc (mb, dest);
7972 mono_mb_emit_stloc (mb, 3);
7974 /* Emit marshalling loop */
7975 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7976 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7977 mono_mb_emit_stloc (mb, index_var);
7978 label2 = mono_mb_get_label (mb);
7979 mono_mb_emit_ldloc (mb, index_var);
7980 mono_mb_emit_ldloc (mb, src);
7981 mono_mb_emit_byte (mb, CEE_LDLEN);
7982 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7984 /* Emit marshalling code */
7986 g_assert (conv != -1);
7989 mono_mb_emit_ldloc (mb, dest);
7992 mono_mb_emit_ldloc (mb, src);
7993 mono_mb_emit_ldloc (mb, index_var);
7995 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7997 mono_mb_emit_icall (mb, conv_to_icall (conv));
7998 mono_mb_emit_byte (mb, CEE_STIND_I);
8001 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8002 mono_mb_emit_exception_marshal_directive (mb, msg);
8006 mono_mb_emit_add_to_local (mb, index_var, 1);
8007 mono_mb_emit_add_to_local (mb, dest, esize);
8009 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8011 mono_mb_patch_branch (mb, label3);
8012 mono_mb_patch_branch (mb, label1);
8016 g_assert_not_reached ();
8023 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8024 MonoMarshalSpec *spec,
8025 int conv_arg, MonoType **conv_arg_type,
8026 MarshalAction action)
8028 MonoMethodBuilder *mb = m->mb;
8031 case MARSHAL_ACTION_CONV_IN: {
8032 MonoType *local_type;
8033 int variant_bool = 0;
8037 local_type = &mono_defaults.int32_class->byval_arg;
8039 switch (spec->native) {
8040 case MONO_NATIVE_I1:
8041 case MONO_NATIVE_U1:
8042 local_type = &mono_defaults.byte_class->byval_arg;
8044 case MONO_NATIVE_VARIANTBOOL:
8045 local_type = &mono_defaults.int16_class->byval_arg;
8049 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8050 local_type = &mono_defaults.int32_class->byval_arg;
8054 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8055 conv_arg = mono_mb_add_local (mb, local_type);
8056 mono_mb_emit_ldarg (mb, argnum);
8057 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8059 mono_mb_emit_byte (mb, CEE_NEG);
8060 mono_mb_emit_stloc (mb, conv_arg);
8064 case MARSHAL_ACTION_CONV_OUT:
8067 mono_mb_emit_ldarg (mb, argnum);
8068 mono_mb_emit_ldloc (mb, conv_arg);
8069 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8070 mono_mb_emit_byte (mb, CEE_NEG);
8071 mono_mb_emit_byte (mb, CEE_STIND_I1);
8074 case MARSHAL_ACTION_PUSH:
8076 mono_mb_emit_ldloc_addr (mb, conv_arg);
8078 mono_mb_emit_ldarg (mb, argnum);
8081 case MARSHAL_ACTION_CONV_RESULT:
8082 /* maybe we need to make sure that it fits within 8 bits */
8083 mono_mb_emit_stloc (mb, 3);
8087 g_assert_not_reached ();
8094 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8095 MonoMarshalSpec *spec, int conv_arg,
8096 MonoType **conv_arg_type, MarshalAction action)
8098 MonoMethodBuilder *mb = m->mb;
8101 case MARSHAL_ACTION_CONV_IN:
8102 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8103 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8104 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8108 case MARSHAL_ACTION_PUSH:
8109 mono_mb_emit_ldarg (mb, argnum);
8112 case MARSHAL_ACTION_CONV_RESULT:
8113 /* no conversions necessary */
8114 mono_mb_emit_stloc (mb, 3);
8125 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8126 MonoMarshalSpec *spec, int conv_arg,
8127 MonoType **conv_arg_type, MarshalAction action)
8129 MonoMethodBuilder *mb = m->mb;
8132 case MARSHAL_ACTION_PUSH:
8133 /* fixme: dont know how to marshal that. We cant simply
8134 * convert it to a one byte UTF8 character, because an
8135 * unicode character may need more that one byte in UTF8 */
8136 mono_mb_emit_ldarg (mb, argnum);
8139 case MARSHAL_ACTION_CONV_RESULT:
8140 /* fixme: we need conversions here */
8141 mono_mb_emit_stloc (mb, 3);
8152 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8153 MonoMarshalSpec *spec, int conv_arg,
8154 MonoType **conv_arg_type, MarshalAction action)
8156 MonoMethodBuilder *mb = m->mb;
8159 case MARSHAL_ACTION_PUSH:
8160 mono_mb_emit_ldarg (mb, argnum);
8163 case MARSHAL_ACTION_CONV_RESULT:
8164 /* no conversions necessary */
8165 mono_mb_emit_stloc (mb, 3);
8176 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8177 MonoMarshalSpec *spec, int conv_arg,
8178 MonoType **conv_arg_type, MarshalAction action)
8180 /* Ensure that we have marshalling info for this param */
8181 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8183 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8184 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8186 if (spec && spec->native == MONO_NATIVE_ASANY)
8187 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8190 case MONO_TYPE_VALUETYPE:
8191 if (t->data.klass == mono_defaults.handleref_class)
8192 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8194 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8195 case MONO_TYPE_STRING:
8196 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8197 case MONO_TYPE_CLASS:
8198 case MONO_TYPE_OBJECT:
8199 if (spec && spec->native == MONO_NATIVE_STRUCT)
8200 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8202 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8203 spec->native == MONO_NATIVE_IDISPATCH ||
8204 spec->native == MONO_NATIVE_INTERFACE))
8205 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8207 if (mono_defaults.safehandle_class != NULL &&
8208 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8209 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8211 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8212 case MONO_TYPE_ARRAY:
8213 case MONO_TYPE_SZARRAY:
8214 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8215 case MONO_TYPE_BOOLEAN:
8216 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8218 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8219 case MONO_TYPE_CHAR:
8220 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8233 case MONO_TYPE_FNPTR:
8234 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8241 * mono_marshal_emit_native_wrapper:
8242 * @image: the image to use for looking up custom marshallers
8243 * @sig: The signature of the native function
8244 * @piinfo: Marshalling information
8245 * @mspecs: Marshalling information
8246 * @func: the native function to call
8247 * @check_exceptions: Whenever to check for pending exceptions after the native call
8249 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8252 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions)
8254 EmitMarshalContext m;
8255 MonoMethodSignature *csig;
8257 int i, argnum, *tmp_locals;
8259 static MonoMethodSignature *get_last_error_sig = NULL;
8264 /* we copy the signature, so that we can set pinvoke to 0 */
8265 csig = signature_dup (mb->method->klass->image, sig);
8270 /* we allocate local for use with emit_struct_conv() */
8271 /* allocate local 0 (pointer) src_ptr */
8272 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8273 /* allocate local 1 (pointer) dst_ptr */
8274 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8275 /* allocate local 2 (boolean) delete_old */
8276 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8278 /* delete_old = FALSE */
8279 mono_mb_emit_icon (mb, 0);
8280 mono_mb_emit_stloc (mb, 2);
8282 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8283 /* allocate local 3 to store the return value */
8284 mono_mb_add_local (mb, sig->ret);
8287 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8288 /* Return type custom marshaling */
8290 * Since we can't determine the return type of the unmanaged function,
8291 * we assume it returns a pointer, and pass that pointer to
8292 * MarshalNativeToManaged.
8294 csig->ret = &mono_defaults.int_class->byval_arg;
8297 /* we first do all conversions */
8298 tmp_locals = alloca (sizeof (int) * sig->param_count);
8299 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8301 for (i = 0; i < sig->param_count; i ++) {
8302 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8305 /* push all arguments */
8308 mono_mb_emit_byte (mb, CEE_LDARG_0);
8311 for (i = 0; i < sig->param_count; i++) {
8312 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8315 /* call the native method */
8316 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8317 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8320 mono_mb_emit_native_call (mb, csig, func);
8323 /* Set LastError if needed */
8324 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8325 if (!get_last_error_sig) {
8326 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8327 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8328 get_last_error_sig->pinvoke = 1;
8331 #ifdef PLATFORM_WIN32
8333 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8334 * clobber its value.
8336 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8337 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8339 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8343 /* convert the result */
8344 if (!sig->ret->byref) {
8345 MonoMarshalSpec *spec = mspecs [0];
8346 type = sig->ret->type;
8348 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8349 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8354 case MONO_TYPE_VOID:
8356 case MONO_TYPE_VALUETYPE:
8357 klass = sig->ret->data.klass;
8358 if (klass->enumtype) {
8359 type = sig->ret->data.klass->enum_basetype->type;
8362 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8376 case MONO_TYPE_FNPTR:
8377 case MONO_TYPE_STRING:
8378 case MONO_TYPE_CLASS:
8379 case MONO_TYPE_OBJECT:
8380 case MONO_TYPE_BOOLEAN:
8381 case MONO_TYPE_ARRAY:
8382 case MONO_TYPE_SZARRAY:
8383 case MONO_TYPE_CHAR:
8385 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8387 case MONO_TYPE_TYPEDBYREF:
8389 g_warning ("return type 0x%02x unknown", sig->ret->type);
8390 g_assert_not_reached ();
8394 mono_mb_emit_stloc (mb, 3);
8398 * Need to call this after converting the result since MONO_VTADDR needs
8399 * to be adjacent to the call instruction.
8401 if (check_exceptions)
8402 emit_thread_interrupt_checkpoint (mb);
8404 /* we need to convert byref arguments back and free string arrays */
8405 for (i = 0; i < sig->param_count; i++) {
8406 MonoType *t = sig->params [i];
8407 MonoMarshalSpec *spec = mspecs [i + 1];
8409 argnum = i + sig->hasthis;
8411 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8412 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8417 case MONO_TYPE_STRING:
8418 case MONO_TYPE_VALUETYPE:
8419 case MONO_TYPE_CLASS:
8420 case MONO_TYPE_OBJECT:
8421 case MONO_TYPE_SZARRAY:
8422 case MONO_TYPE_BOOLEAN:
8423 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8428 if (!MONO_TYPE_IS_VOID(sig->ret))
8429 mono_mb_emit_ldloc (mb, 3);
8431 mono_mb_emit_byte (mb, CEE_RET);
8435 * mono_marshal_get_native_wrapper:
8436 * @method: The MonoMethod to wrap.
8437 * @check_exceptions: Whenever to check for pending exceptions
8439 * generates IL code for the pinvoke wrapper (the generated method
8440 * calls the unmanaged code in piinfo->addr)
8443 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions)
8445 MonoMethodSignature *sig, *csig;
8446 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8447 MonoMethodBuilder *mb;
8448 MonoMarshalSpec **mspecs;
8451 gboolean pinvoke = FALSE;
8454 const char *exc_class = "MissingMethodException";
8455 const char *exc_arg = NULL;
8457 g_assert (method != NULL);
8458 g_assert (mono_method_signature (method)->pinvoke);
8460 cache = method->klass->image->native_wrapper_cache;
8461 if ((res = mono_marshal_find_in_cache (cache, method)))
8464 if (MONO_CLASS_IS_IMPORT (method->klass))
8465 return cominterop_get_native_wrapper (method);
8467 sig = mono_method_signature (method);
8469 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8470 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8473 if (!piinfo->addr) {
8475 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8476 exc_arg = "Method contains unsupported native code";
8478 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8480 piinfo->addr = mono_lookup_internal_call (method);
8483 /* hack - redirect certain string constructors to CreateString */
8484 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8485 g_assert (!pinvoke);
8486 g_assert (method->string_ctor);
8487 g_assert (sig->hasthis);
8489 /* CreateString returns a value */
8490 csig = signature_dup (method->klass->image, sig);
8491 csig->ret = &mono_defaults.string_class->byval_arg;
8495 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8496 if (!strcmp ("CreateString", res->name) &&
8497 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8499 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8500 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8502 /* create a wrapper to preserve .ctor in stack trace */
8503 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8505 mono_mb_emit_byte (mb, CEE_LDARG_0);
8506 for (i = 1; i <= csig->param_count; i++)
8507 mono_mb_emit_ldarg (mb, i);
8508 mono_mb_emit_managed_call (mb, res, NULL);
8509 mono_mb_emit_byte (mb, CEE_RET);
8511 /* use native_wrapper_cache because internal calls are looked up there */
8512 res = mono_mb_create_and_cache (cache, method,
8513 mb, csig, csig->param_count + 1);
8521 /* exception will be thrown */
8522 piinfo->addr = NULL;
8523 g_warning ("cannot find CreateString for .ctor");
8526 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8528 mb->method->save_lmf = 1;
8530 if (!piinfo->addr) {
8531 mono_mb_emit_exception (mb, exc_class, exc_arg);
8532 csig = signature_dup (method->klass->image, sig);
8534 res = mono_mb_create_and_cache (cache, method,
8535 mb, csig, csig->param_count + 16);
8540 /* internal calls: we simply push all arguments and call the method (no conversions) */
8541 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8543 /* hack - string constructors returns a value */
8544 if (method->string_ctor) {
8545 csig = signature_dup (method->klass->image, sig);
8546 csig->ret = &mono_defaults.string_class->byval_arg;
8551 mono_mb_emit_byte (mb, CEE_LDARG_0);
8553 for (i = 0; i < sig->param_count; i++)
8554 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8556 g_assert (piinfo->addr);
8557 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8558 if (check_exceptions)
8559 emit_thread_interrupt_checkpoint (mb);
8560 mono_mb_emit_byte (mb, CEE_RET);
8562 csig = signature_dup (method->klass->image, csig);
8564 res = mono_mb_create_and_cache (cache, method,
8565 mb, csig, csig->param_count + 16);
8572 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8573 mono_method_get_marshal_info (method, mspecs);
8575 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, check_exceptions);
8577 csig = signature_dup (method->klass->image, sig);
8579 res = mono_mb_create_and_cache (cache, method,
8580 mb, csig, csig->param_count + 16);
8583 for (i = sig->param_count; i >= 0; i--)
8585 mono_metadata_free_marshal_spec (mspecs [i]);
8588 /* 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)); */
8594 * mono_marshal_get_native_func_wrapper:
8595 * @image: The image to use for memory allocation and for looking up custom marshallers.
8596 * @sig: The signature of the function
8597 * @func: The native function to wrap
8599 * Returns a wrapper method around native functions, similar to the pinvoke
8603 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8604 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8606 MonoMethodSignature *csig;
8608 MonoMethodBuilder *mb;
8613 cache = image->native_wrapper_cache;
8614 if ((res = mono_marshal_find_in_cache (cache, func)))
8617 name = g_strdup_printf ("wrapper_native_%p", func);
8618 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8619 mb->method->save_lmf = 1;
8621 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, TRUE);
8623 csig = signature_dup (image, sig);
8625 res = mono_mb_create_and_cache (cache, func,
8626 mb, csig, csig->param_count + 16);
8629 /* 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)); */
8634 /* FIXME: moving GC */
8636 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8638 MonoMethodSignature *sig, *csig;
8644 /* allocate local 0 (pointer) src_ptr */
8645 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8646 /* allocate local 1 (pointer) dst_ptr */
8647 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8648 /* allocate local 2 (boolean) delete_old */
8649 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8651 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8652 /* allocate local 3 to store the return value */
8653 mono_mb_add_local (mb, sig->ret);
8656 mono_mb_emit_icon (mb, 0);
8657 mono_mb_emit_stloc (mb, 2);
8659 /* we first do all conversions */
8660 tmp_locals = alloca (sizeof (int) * sig->param_count);
8661 for (i = 0; i < sig->param_count; i ++) {
8662 MonoType *t = sig->params [i];
8665 case MONO_TYPE_OBJECT:
8666 case MONO_TYPE_CLASS:
8667 case MONO_TYPE_VALUETYPE:
8668 case MONO_TYPE_ARRAY:
8669 case MONO_TYPE_SZARRAY:
8670 case MONO_TYPE_STRING:
8671 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8680 emit_thread_interrupt_checkpoint (mb);
8682 /* fixme: howto handle this ? */
8685 /* FIXME: need a solution for the moving GC here */
8686 mono_mb_emit_ptr (mb, this);
8689 g_assert_not_reached ();
8693 for (i = 0; i < sig->param_count; i++) {
8694 MonoType *t = sig->params [i];
8696 if (tmp_locals [i]) {
8698 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8700 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8703 mono_mb_emit_ldarg (mb, i);
8706 mono_mb_emit_managed_call (mb, method, NULL);
8708 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8709 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8712 if (!sig->ret->byref) {
8713 switch (sig->ret->type) {
8714 case MONO_TYPE_VOID:
8716 case MONO_TYPE_BOOLEAN:
8730 case MONO_TYPE_OBJECT:
8731 mono_mb_emit_stloc (mb, 3);
8733 case MONO_TYPE_STRING:
8734 csig->ret = &mono_defaults.int_class->byval_arg;
8735 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8737 case MONO_TYPE_VALUETYPE:
8738 case MONO_TYPE_CLASS:
8739 case MONO_TYPE_SZARRAY:
8740 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8743 g_warning ("return type 0x%02x unknown", sig->ret->type);
8744 g_assert_not_reached ();
8747 mono_mb_emit_stloc (mb, 3);
8750 /* Convert byref arguments back */
8751 for (i = 0; i < sig->param_count; i ++) {
8752 MonoType *t = sig->params [i];
8753 MonoMarshalSpec *spec = mspecs [i + 1];
8755 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8756 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8758 else if (t->byref) {
8760 case MONO_TYPE_CLASS:
8761 case MONO_TYPE_VALUETYPE:
8762 case MONO_TYPE_OBJECT:
8763 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8767 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8768 /* The [Out] information is encoded in the delegate signature */
8770 case MONO_TYPE_SZARRAY:
8771 case MONO_TYPE_CLASS:
8772 case MONO_TYPE_VALUETYPE:
8773 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8776 g_assert_not_reached ();
8781 if (m->retobj_var) {
8782 mono_mb_emit_ldloc (mb, m->retobj_var);
8783 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8784 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8787 if (!MONO_TYPE_IS_VOID(sig->ret))
8788 mono_mb_emit_ldloc (mb, 3);
8789 mono_mb_emit_byte (mb, CEE_RET);
8795 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8797 MonoMethodSignature *sig;
8800 #ifdef PLATFORM_WIN32
8802 * Under windows, delegates passed to native code must use the STDCALL
8803 * calling convention.
8805 csig->call_convention = MONO_CALL_STDCALL;
8808 sig = mono_method_signature (method);
8810 /* Change default calling convention if needed */
8811 /* Why is this a modopt ? */
8812 if (sig->ret && sig->ret->num_mods) {
8813 for (i = 0; i < sig->ret->num_mods; ++i) {
8814 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8815 g_assert (cmod_class);
8816 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8817 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8818 csig->call_convention = MONO_CALL_C;
8819 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8820 csig->call_convention = MONO_CALL_STDCALL;
8821 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8822 csig->call_convention = MONO_CALL_FASTCALL;
8823 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8824 csig->call_convention = MONO_CALL_THISCALL;
8831 * generates IL code to call managed methods from unmanaged code
8834 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8836 static MonoClass *UnmanagedFunctionPointerAttribute;
8837 MonoMethodSignature *sig, *csig, *invoke_sig;
8838 MonoMethodBuilder *mb;
8839 MonoMethod *res, *invoke;
8840 MonoMarshalSpec **mspecs;
8841 MonoMethodPInvoke piinfo;
8844 EmitMarshalContext m;
8846 g_assert (method != NULL);
8847 g_assert (!mono_method_signature (method)->pinvoke);
8850 * FIXME: Should cache the method+delegate type pair, since the same method
8851 * could be called with different delegates, thus different marshalling
8854 cache = method->klass->image->managed_wrapper_cache;
8855 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
8858 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
8859 invoke_sig = mono_method_signature (invoke);
8861 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8862 mono_method_get_marshal_info (invoke, mspecs);
8864 sig = mono_method_signature (method);
8866 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8869 /* we copy the signature, so that we can modify it */
8871 /* Need to free this later */
8872 csig = mono_metadata_signature_dup (sig);
8874 csig = signature_dup (method->klass->image, sig);
8883 m.image = method->klass->image;
8885 mono_marshal_set_callconv_from_modopt (invoke, csig);
8887 /* Handle the UnmanagedFunctionPointerAttribute */
8888 if (!UnmanagedFunctionPointerAttribute)
8889 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8891 /* The attribute is only available in Net 2.0 */
8892 if (UnmanagedFunctionPointerAttribute) {
8893 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8894 MonoCustomAttrInfo *cinfo;
8897 * The pinvoke attributes are stored in a real custom attribute so we have to
8900 cinfo = mono_custom_attrs_from_class (delegate_klass);
8902 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8904 memset (&piinfo, 0, sizeof (piinfo));
8906 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8908 csig->call_convention = attr->call_conv - 1;
8911 mono_custom_attrs_free (cinfo);
8915 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
8918 res = mono_mb_create_and_cache (cache, method,
8919 mb, csig, sig->param_count + 16);
8922 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8926 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8928 mono_metadata_free_marshal_spec (mspecs [i]);
8931 /* 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)); */
8937 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8940 MonoMethodSignature *sig;
8941 MonoMethodBuilder *mb;
8946 method = mono_get_method (image, token, NULL);
8949 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8950 MonoMethodSignature *csig;
8951 MonoMarshalSpec **mspecs;
8952 EmitMarshalContext m;
8954 sig = mono_method_signature (method);
8955 g_assert (!sig->hasthis);
8957 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8958 mono_method_get_marshal_info (method, mspecs);
8960 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8961 csig = signature_dup (image, sig);
8972 mono_marshal_set_callconv_from_modopt (method, csig);
8974 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8976 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8979 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8982 for (i = sig->param_count; i >= 0; i--)
8984 mono_metadata_free_marshal_spec (mspecs [i]);
8987 return mono_compile_method (method);
8990 sig = mono_method_signature (method);
8991 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8993 param_count = sig->param_count + sig->hasthis;
8994 for (i = 0; i < param_count; i++)
8995 mono_mb_emit_ldarg (mb, i);
8997 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8998 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9000 mono_mb_emit_op (mb, CEE_CALL, method);
9001 mono_mb_emit_byte (mb, CEE_RET);
9004 method = mono_mb_create_method (mb, sig, param_count);
9007 return mono_compile_method (method);
9010 static MonoReflectionType *
9011 type_from_handle (MonoType *handle)
9013 MonoDomain *domain = mono_domain_get ();
9014 MonoClass *klass = mono_class_from_mono_type (handle);
9016 MONO_ARCH_SAVE_REGS;
9018 mono_class_init (klass);
9019 return mono_type_get_object (domain, handle);
9023 * mono_marshal_get_isinst:
9024 * @klass: the type of the field
9026 * This method generates a function which can be used to check if an object is
9027 * an instance of the given type, icluding the case where the object is a proxy.
9028 * The generated function has the following signature:
9029 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9032 mono_marshal_get_isinst (MonoClass *klass)
9034 static MonoMethodSignature *isint_sig = NULL;
9037 int pos_was_ok, pos_failed, pos_end, pos_end2;
9039 MonoMethodBuilder *mb;
9041 cache = klass->image->isinst_cache;
9042 if ((res = mono_marshal_find_in_cache (cache, klass)))
9046 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9047 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9048 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9049 isint_sig->pinvoke = 0;
9052 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9053 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9056 mb->method->save_lmf = 1;
9058 /* check if the object is a proxy that needs special cast */
9059 mono_mb_emit_ldarg (mb, 0);
9060 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9061 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9063 /* The result of MONO_ISINST can be:
9064 0) the type check succeeded
9065 1) the type check did not succeed
9066 2) a CanCastTo call is needed */
9068 mono_mb_emit_byte (mb, CEE_DUP);
9069 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9071 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9072 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9074 /* get the real proxy from the transparent proxy*/
9076 mono_mb_emit_ldarg (mb, 0);
9077 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9078 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9082 mono_mb_patch_branch (mb, pos_failed);
9083 mono_mb_emit_byte (mb, CEE_LDNULL);
9084 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9088 mono_mb_patch_branch (mb, pos_was_ok);
9089 mono_mb_emit_byte (mb, CEE_POP);
9090 mono_mb_emit_ldarg (mb, 0);
9094 mono_mb_patch_branch (mb, pos_end);
9095 mono_mb_patch_branch (mb, pos_end2);
9096 mono_mb_emit_byte (mb, CEE_RET);
9098 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9105 * mono_marshal_get_castclass:
9106 * @klass: the type of the field
9108 * This method generates a function which can be used to cast an object to
9109 * an instance of the given type, icluding the case where the object is a proxy.
9110 * The generated function has the following signature:
9111 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9114 mono_marshal_get_castclass (MonoClass *klass)
9116 static MonoMethodSignature *castclass_sig = NULL;
9119 int pos_was_ok, pos_was_ok2;
9121 MonoMethodBuilder *mb;
9123 cache = klass->image->castclass_cache;
9124 if ((res = mono_marshal_find_in_cache (cache, klass)))
9127 if (!castclass_sig) {
9128 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9129 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9130 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9131 castclass_sig->pinvoke = 0;
9134 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9135 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9138 mb->method->save_lmf = 1;
9140 /* check if the object is a proxy that needs special cast */
9141 mono_mb_emit_ldarg (mb, 0);
9142 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9143 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9145 /* The result of MONO_ISINST can be:
9146 0) the cast is valid
9147 1) cast of unknown proxy type
9148 or an exception if the cast is is invalid
9151 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9153 /* get the real proxy from the transparent proxy*/
9155 mono_mb_emit_ldarg (mb, 0);
9156 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9157 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9160 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9163 mono_mb_patch_branch (mb, pos_was_ok);
9164 mono_mb_patch_branch (mb, pos_was_ok2);
9165 mono_mb_emit_ldarg (mb, 0);
9168 mono_mb_emit_byte (mb, CEE_RET);
9170 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9177 mono_marshal_get_proxy_cancast (MonoClass *klass)
9179 static MonoMethodSignature *isint_sig = NULL;
9182 int pos_failed, pos_end;
9184 MonoMethod *can_cast_to;
9185 MonoMethodDesc *desc;
9186 MonoMethodBuilder *mb;
9188 cache = klass->image->proxy_isinst_cache;
9189 if ((res = mono_marshal_find_in_cache (cache, klass)))
9193 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9194 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9195 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9196 isint_sig->pinvoke = 0;
9199 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9200 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9203 mb->method->save_lmf = 1;
9205 /* get the real proxy from the transparent proxy*/
9206 mono_mb_emit_ldarg (mb, 0);
9207 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9208 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9210 /* get the reflection type from the type handle */
9211 mono_mb_emit_ptr (mb, &klass->byval_arg);
9212 mono_mb_emit_icall (mb, type_from_handle);
9214 mono_mb_emit_ldarg (mb, 0);
9216 /* make the call to CanCastTo (type, ob) */
9217 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9218 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9219 g_assert (can_cast_to);
9220 mono_method_desc_free (desc);
9221 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9223 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9225 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9226 mono_mb_emit_ptr (mb, &klass->byval_arg);
9227 mono_mb_emit_icall (mb, type_from_handle);
9228 mono_mb_emit_ldarg (mb, 0);
9230 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9231 emit_thread_interrupt_checkpoint (mb);
9233 mono_mb_emit_ldarg (mb, 0);
9234 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9238 mono_mb_patch_branch (mb, pos_failed);
9239 mono_mb_emit_byte (mb, CEE_LDNULL);
9243 mono_mb_patch_branch (mb, pos_end);
9244 mono_mb_emit_byte (mb, CEE_RET);
9246 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9253 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9256 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9257 klass = mono_class_from_mono_type (rtype->type);
9258 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9262 * mono_marshal_get_struct_to_ptr:
9265 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9268 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9270 MonoMethodBuilder *mb;
9271 static MonoMethod *stoptr = NULL;
9274 g_assert (klass != NULL);
9276 mono_marshal_load_type_info (klass);
9278 if (klass->marshal_info->str_to_ptr)
9279 return klass->marshal_info->str_to_ptr;
9282 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9285 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9287 if (klass->blittable) {
9288 mono_mb_emit_byte (mb, CEE_LDARG_1);
9289 mono_mb_emit_byte (mb, CEE_LDARG_0);
9290 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9291 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9292 mono_mb_emit_byte (mb, CEE_PREFIX1);
9293 mono_mb_emit_byte (mb, CEE_CPBLK);
9296 /* allocate local 0 (pointer) src_ptr */
9297 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9298 /* allocate local 1 (pointer) dst_ptr */
9299 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9300 /* allocate local 2 (boolean) delete_old */
9301 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9302 mono_mb_emit_byte (mb, CEE_LDARG_2);
9303 mono_mb_emit_stloc (mb, 2);
9305 /* initialize src_ptr to point to the start of object data */
9306 mono_mb_emit_byte (mb, CEE_LDARG_0);
9307 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9308 mono_mb_emit_stloc (mb, 0);
9310 /* initialize dst_ptr */
9311 mono_mb_emit_byte (mb, CEE_LDARG_1);
9312 mono_mb_emit_stloc (mb, 1);
9314 emit_struct_conv (mb, klass, FALSE);
9317 mono_mb_emit_byte (mb, CEE_RET);
9319 res = mono_mb_create_method (mb, signature_no_pinvoke (stoptr), 0);
9322 klass->marshal_info->str_to_ptr = res;
9327 * mono_marshal_get_ptr_to_struct:
9330 * generates IL code for PtrToStructure (IntPtr src, object structure)
9333 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9335 MonoMethodBuilder *mb;
9336 static MonoMethodSignature *ptostr = NULL;
9339 g_assert (klass != NULL);
9341 mono_marshal_load_type_info (klass);
9343 if (klass->marshal_info->ptr_to_str)
9344 return klass->marshal_info->ptr_to_str;
9347 MonoMethodSignature *sig;
9349 /* Create the signature corresponding to
9350 static void PtrToStructure (IntPtr ptr, object structure);
9351 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9352 sig = mono_create_icall_signature ("void ptr object");
9353 sig = signature_dup (mono_defaults.corlib, sig);
9355 mono_memory_barrier ();
9359 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9361 if (klass->blittable) {
9362 mono_mb_emit_byte (mb, CEE_LDARG_1);
9363 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9364 mono_mb_emit_byte (mb, CEE_LDARG_0);
9365 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9366 mono_mb_emit_byte (mb, CEE_PREFIX1);
9367 mono_mb_emit_byte (mb, CEE_CPBLK);
9370 /* allocate local 0 (pointer) src_ptr */
9371 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9372 /* allocate local 1 (pointer) dst_ptr */
9373 mono_mb_add_local (mb, &klass->this_arg);
9375 /* initialize src_ptr to point to the start of object data */
9376 mono_mb_emit_byte (mb, CEE_LDARG_0);
9377 mono_mb_emit_stloc (mb, 0);
9379 /* initialize dst_ptr */
9380 mono_mb_emit_byte (mb, CEE_LDARG_1);
9381 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9382 mono_mb_emit_stloc (mb, 1);
9384 emit_struct_conv (mb, klass, TRUE);
9387 mono_mb_emit_byte (mb, CEE_RET);
9389 res = mono_mb_create_method (mb, ptostr, 0);
9392 klass->marshal_info->ptr_to_str = res;
9397 * generates IL code for the synchronized wrapper: the generated method
9398 * calls METHOD while locking 'this' or the parent type.
9401 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9403 static MonoMethod *enter_method, *exit_method;
9404 MonoMethodSignature *sig;
9405 MonoExceptionClause *clause;
9406 MonoMethodHeader *header;
9407 MonoMethodBuilder *mb;
9410 int i, pos, this_local, ret_local = 0;
9414 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9417 cache = method->klass->image->synchronized_cache;
9418 if ((res = mono_marshal_find_in_cache (cache, method)))
9421 sig = signature_dup (method->klass->image, mono_method_signature (method));
9424 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9427 if (!MONO_TYPE_IS_VOID (sig->ret))
9428 ret_local = mono_mb_add_local (mb, sig->ret);
9430 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9431 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9432 /* This will throw the type load exception when the wrapper is compiled */
9433 mono_mb_emit_byte (mb, CEE_LDNULL);
9434 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9435 mono_mb_emit_byte (mb, CEE_POP);
9437 if (!MONO_TYPE_IS_VOID (sig->ret))
9438 mono_mb_emit_ldloc (mb, ret_local);
9439 mono_mb_emit_byte (mb, CEE_RET);
9441 res = mono_mb_create_and_cache (cache, method,
9442 mb, sig, sig->param_count + 16);
9449 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9451 mono_loader_lock ();
9452 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
9453 mono_loader_unlock ();
9454 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9456 if (!enter_method) {
9457 MonoMethodDesc *desc;
9459 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9460 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9461 g_assert (enter_method);
9462 mono_method_desc_free (desc);
9463 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9464 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9465 g_assert (exit_method);
9466 mono_method_desc_free (desc);
9469 /* Push this or the type object */
9470 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9472 * GetTypeFromHandle isn't called as a managed method because it has
9473 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9474 * transformed into something else by the JIT.
9476 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9477 mono_mb_emit_icall (mb, type_from_handle);
9480 mono_mb_emit_ldarg (mb, 0);
9481 mono_mb_emit_stloc (mb, this_local);
9483 /* Call Monitor::Enter() */
9484 mono_mb_emit_ldloc (mb, this_local);
9485 mono_mb_emit_managed_call (mb, enter_method, NULL);
9487 clause->try_offset = mono_mb_get_label (mb);
9489 /* Call the method */
9491 mono_mb_emit_ldarg (mb, 0);
9492 for (i = 0; i < sig->param_count; i++)
9493 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9495 /* this is needed to avoid recursion */
9496 mono_mb_emit_byte (mb, CEE_PREFIX1);
9497 mono_mb_emit_op (mb, CEE_LDFTN, method);
9498 mono_mb_emit_calli (mb, mono_method_signature (method));
9500 if (!MONO_TYPE_IS_VOID (sig->ret))
9501 mono_mb_emit_stloc (mb, ret_local);
9503 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9505 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9506 clause->handler_offset = mono_mb_get_label (mb);
9508 /* Call Monitor::Exit() */
9509 mono_mb_emit_ldloc (mb, this_local);
9510 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
9511 mono_mb_emit_managed_call (mb, exit_method, NULL);
9512 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9514 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9516 mono_mb_patch_branch (mb, pos);
9517 if (!MONO_TYPE_IS_VOID (sig->ret))
9518 mono_mb_emit_ldloc (mb, ret_local);
9519 mono_mb_emit_byte (mb, CEE_RET);
9521 res = mono_mb_create_and_cache (cache, method,
9522 mb, sig, sig->param_count + 16);
9525 header = ((MonoMethodNormal *)res)->header;
9526 header->num_clauses = 1;
9527 header->clauses = clause;
9534 * the returned method calls 'method' unboxing the this argument
9537 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9539 MonoMethodSignature *sig = mono_method_signature (method);
9541 MonoMethodBuilder *mb;
9545 cache = method->klass->image->unbox_wrapper_cache;
9546 if ((res = mono_marshal_find_in_cache (cache, method)))
9549 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9551 g_assert (sig->hasthis);
9553 mono_mb_emit_ldarg (mb, 0);
9554 mono_mb_emit_icon (mb, sizeof (MonoObject));
9555 mono_mb_emit_byte (mb, CEE_ADD);
9556 for (i = 0; i < sig->param_count; ++i)
9557 mono_mb_emit_ldarg (mb, i + 1);
9558 mono_mb_emit_managed_call (mb, method, NULL);
9559 mono_mb_emit_byte (mb, CEE_RET);
9561 res = mono_mb_create_and_cache (cache, method,
9562 mb, sig, sig->param_count + 16);
9565 /* 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)); */
9571 mono_marshal_get_stelemref ()
9573 static MonoMethod* ret = NULL;
9574 MonoMethodSignature *sig;
9575 MonoMethodBuilder *mb;
9577 guint32 b1, b2, b3, b4;
9580 int array_slot_addr;
9585 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9588 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9590 /* void stelemref (void* array, int idx, void* value) */
9591 sig->ret = &mono_defaults.void_class->byval_arg;
9592 sig->params [0] = &mono_defaults.object_class->byval_arg;
9593 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9594 sig->params [2] = &mono_defaults.object_class->byval_arg;
9596 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9597 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9598 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9602 <ldelema (bound check)>
9606 aklass = array->vtable->klass->element_class;
9607 vklass = value->vtable->klass;
9609 if (vklass->idepth < aklass->idepth)
9612 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9616 *array_slot_addr = value;
9620 if (mono_object_isinst (value, aklass))
9623 throw new ArrayTypeMismatchException ();
9626 /* ldelema (implicit bound check) */
9627 mono_mb_emit_ldarg (mb, 0);
9628 mono_mb_emit_ldarg (mb, 1);
9629 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9630 mono_mb_emit_stloc (mb, array_slot_addr);
9632 /* if (!value) goto do_store */
9633 mono_mb_emit_ldarg (mb, 2);
9634 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9636 /* aklass = array->vtable->klass->element_class */
9637 mono_mb_emit_ldarg (mb, 0);
9638 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9639 mono_mb_emit_byte (mb, CEE_LDIND_I);
9640 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9641 mono_mb_emit_byte (mb, CEE_LDIND_I);
9642 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9643 mono_mb_emit_byte (mb, CEE_LDIND_I);
9644 mono_mb_emit_stloc (mb, aklass);
9646 /* vklass = value->vtable->klass */
9647 mono_mb_emit_ldarg (mb, 2);
9648 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9649 mono_mb_emit_byte (mb, CEE_LDIND_I);
9650 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9651 mono_mb_emit_byte (mb, CEE_LDIND_I);
9652 mono_mb_emit_stloc (mb, vklass);
9654 /* if (vklass->idepth < aklass->idepth) goto failue */
9655 mono_mb_emit_ldloc (mb, vklass);
9656 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9657 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9659 mono_mb_emit_ldloc (mb, aklass);
9660 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9661 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9663 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9665 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9666 mono_mb_emit_ldloc (mb, vklass);
9667 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9668 mono_mb_emit_byte (mb, CEE_LDIND_I);
9670 mono_mb_emit_ldloc (mb, aklass);
9671 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9672 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9673 mono_mb_emit_icon (mb, 1);
9674 mono_mb_emit_byte (mb, CEE_SUB);
9675 mono_mb_emit_icon (mb, sizeof (void*));
9676 mono_mb_emit_byte (mb, CEE_MUL);
9677 mono_mb_emit_byte (mb, CEE_ADD);
9678 mono_mb_emit_byte (mb, CEE_LDIND_I);
9680 mono_mb_emit_ldloc (mb, aklass);
9682 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9684 copy_pos = mono_mb_get_label (mb);
9686 mono_mb_patch_branch (mb, b1);
9687 mono_mb_emit_ldloc (mb, array_slot_addr);
9688 mono_mb_emit_ldarg (mb, 2);
9689 mono_mb_emit_byte (mb, CEE_STIND_REF);
9691 mono_mb_emit_byte (mb, CEE_RET);
9694 mono_mb_patch_branch (mb, b2);
9695 mono_mb_patch_branch (mb, b3);
9697 mono_mb_emit_ldarg (mb, 2);
9698 mono_mb_emit_ldloc (mb, aklass);
9699 mono_mb_emit_icall (mb, mono_object_isinst);
9701 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9702 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9703 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9705 mono_mb_emit_byte (mb, CEE_RET);
9706 ret = mono_mb_create_method (mb, sig, 4);
9717 /* LOCKING: vars accessed under the marshal lock */
9718 static ArrayElemAddr *elem_addr_cache = NULL;
9719 static int elem_addr_cache_size = 0;
9720 static int elem_addr_cache_next = 0;
9723 * mono_marshal_get_array_address:
9724 * @rank: rank of the array type
9725 * @elem_size: size in bytes of an element of an array.
9727 * Returns a MonoMethd that implements the code to get the address
9728 * of an element in a multi-dimenasional array of @rank dimensions.
9729 * The returned method takes an array as the first argument and then
9730 * @rank indexes for the @rank dimensions.
9733 mono_marshal_get_array_address (int rank, int elem_size)
9736 MonoMethodBuilder *mb;
9737 MonoMethodSignature *sig;
9738 int i, bounds, ind, realidx;
9739 int branch_pos, *branch_positions;
9743 mono_marshal_lock ();
9744 for (i = 0; i < elem_addr_cache_next; ++i) {
9745 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9746 ret = elem_addr_cache [i].method;
9750 mono_marshal_unlock ();
9754 branch_positions = g_new0 (int, rank);
9756 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9758 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9759 sig->ret = &mono_defaults.int_class->byval_arg;
9760 sig->params [0] = &mono_defaults.object_class->byval_arg;
9761 for (i = 0; i < rank; ++i) {
9762 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9765 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9767 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9768 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9769 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9771 /* bounds = array->bounds; */
9772 mono_mb_emit_ldarg (mb, 0);
9773 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9774 mono_mb_emit_byte (mb, CEE_LDIND_I);
9775 mono_mb_emit_stloc (mb, bounds);
9777 /* ind is the overall element index, realidx is the partial index in a single dimension */
9778 /* ind = idx0 - bounds [0].lower_bound */
9779 mono_mb_emit_ldarg (mb, 1);
9780 mono_mb_emit_ldloc (mb, bounds);
9781 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9782 mono_mb_emit_byte (mb, CEE_ADD);
9783 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9784 mono_mb_emit_byte (mb, CEE_SUB);
9785 mono_mb_emit_stloc (mb, ind);
9786 /* if (ind >= bounds [0].length) goto exeception; */
9787 mono_mb_emit_ldloc (mb, ind);
9788 mono_mb_emit_ldloc (mb, bounds);
9789 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9790 mono_mb_emit_byte (mb, CEE_ADD);
9791 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9792 /* note that we use unsigned comparison */
9793 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9795 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9796 * We could also decide to ignore the passed elem_size and get it
9797 * from the array object, to reduce the number of methods we generate:
9798 * the additional cost is 3 memory loads and a non-immediate mul.
9800 for (i = 1; i < rank; ++i) {
9801 /* realidx = idxi - bounds [i].lower_bound */
9802 mono_mb_emit_ldarg (mb, 1 + i);
9803 mono_mb_emit_ldloc (mb, bounds);
9804 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9805 mono_mb_emit_byte (mb, CEE_ADD);
9806 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9807 mono_mb_emit_byte (mb, CEE_SUB);
9808 mono_mb_emit_stloc (mb, realidx);
9809 /* if (realidx >= bounds [i].length) goto exeception; */
9810 mono_mb_emit_ldloc (mb, realidx);
9811 mono_mb_emit_ldloc (mb, bounds);
9812 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9813 mono_mb_emit_byte (mb, CEE_ADD);
9814 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9815 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9816 /* ind = ind * bounds [i].length + realidx */
9817 mono_mb_emit_ldloc (mb, ind);
9818 mono_mb_emit_ldloc (mb, bounds);
9819 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9820 mono_mb_emit_byte (mb, CEE_ADD);
9821 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9822 mono_mb_emit_byte (mb, CEE_MUL);
9823 mono_mb_emit_ldloc (mb, realidx);
9824 mono_mb_emit_byte (mb, CEE_ADD);
9825 mono_mb_emit_stloc (mb, ind);
9828 /* return array->vector + ind * element_size */
9829 mono_mb_emit_ldarg (mb, 0);
9830 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9831 mono_mb_emit_ldloc (mb, ind);
9832 mono_mb_emit_icon (mb, elem_size);
9833 mono_mb_emit_byte (mb, CEE_MUL);
9834 mono_mb_emit_byte (mb, CEE_ADD);
9835 mono_mb_emit_byte (mb, CEE_RET);
9837 /* patch the branches to get here and throw */
9838 for (i = 1; i < rank; ++i) {
9839 mono_mb_patch_branch (mb, branch_positions [i]);
9841 mono_mb_patch_branch (mb, branch_pos);
9842 /* throw exception */
9843 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9845 g_free (branch_positions);
9846 ret = mono_mb_create_method (mb, sig, 4);
9849 /* cache the result */
9851 mono_marshal_lock ();
9852 for (i = 0; i < elem_addr_cache_next; ++i) {
9853 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9854 /* FIXME: free ret */
9855 ret = elem_addr_cache [i].method;
9861 if (elem_addr_cache_next >= elem_addr_cache_size) {
9862 int new_size = elem_addr_cache_size + 4;
9863 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9864 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9865 g_free (elem_addr_cache);
9866 elem_addr_cache = new_array;
9867 elem_addr_cache_size = new_size;
9869 elem_addr_cache [elem_addr_cache_next].rank = rank;
9870 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9871 elem_addr_cache [elem_addr_cache_next].method = ret;
9873 mono_marshal_unlock ();
9878 mono_marshal_get_write_barrier (void)
9880 static MonoMethod* ret = NULL;
9881 MonoMethodSignature *sig;
9882 MonoMethodBuilder *mb;
9888 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
9890 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9892 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
9893 sig->ret = &mono_defaults.void_class->byval_arg;
9894 sig->params [0] = &mono_defaults.object_class->this_arg;
9895 sig->params [1] = &mono_defaults.object_class->byval_arg;
9897 /* just the store right now: add an hook for the GC to use, maybe something
9898 * that can be used for stelemref as well
9899 * We need a write barrier variant to be used with struct copies as well, though
9900 * there are also other approaches possible, like writing a wrapper specific to
9901 * the struct or to the reference pattern in the struct...
9902 * Depending on the GC, we may want variants that take the object we store to
9903 * when it is available.
9905 mono_mb_emit_ldarg (mb, 0);
9906 mono_mb_emit_ldarg (mb, 1);
9907 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
9908 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
9910 mono_mb_emit_byte (mb, CEE_RET);
9912 ret = mono_mb_create_method (mb, sig, max_stack);
9918 mono_marshal_alloc (gulong size)
9922 #ifdef PLATFORM_WIN32
9923 res = CoTaskMemAlloc (size);
9925 res = g_try_malloc ((gulong)size);
9927 mono_gc_out_of_memory ((gulong)size);
9933 mono_marshal_free (gpointer ptr)
9935 #ifdef PLATFORM_WIN32
9936 CoTaskMemFree (ptr);
9943 mono_marshal_free_array (gpointer *ptr, int size)
9950 for (i = 0; i < size; i++)
9956 mono_marshal_string_to_utf16 (MonoString *s)
9958 return s ? mono_string_chars (s) : NULL;
9962 mono_marshal_string_to_utf16_copy (MonoString *s)
9967 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9968 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9969 res [mono_string_length (s)] = 0;
9975 * mono_marshal_set_last_error:
9977 * This function is invoked to set the last error value from a P/Invoke call
9978 * which has SetLastError set.
9981 mono_marshal_set_last_error (void)
9984 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9986 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9991 mono_marshal_set_last_error_windows (int error)
9994 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9999 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10000 gpointer dest, gint32 length)
10005 MONO_ARCH_SAVE_REGS;
10007 MONO_CHECK_ARG_NULL (src);
10008 MONO_CHECK_ARG_NULL (dest);
10010 if (src->obj.vtable->klass->rank != 1)
10011 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10012 if (start_index < 0)
10013 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10015 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10016 if (start_index + length > mono_array_length (src))
10017 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10019 element_size = mono_array_element_size (src->obj.vtable->klass);
10021 /* no references should be involved */
10022 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10024 memcpy (dest, source_addr, length * element_size);
10028 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10029 MonoArray *dest, gint32 length)
10034 MONO_ARCH_SAVE_REGS;
10036 MONO_CHECK_ARG_NULL (src);
10037 MONO_CHECK_ARG_NULL (dest);
10039 if (dest->obj.vtable->klass->rank != 1)
10040 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10041 if (start_index < 0)
10042 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10044 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10045 if (start_index + length > mono_array_length (dest))
10046 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10048 element_size = mono_array_element_size (dest->obj.vtable->klass);
10050 /* no references should be involved */
10051 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10053 memcpy (dest_addr, src, length * element_size);
10056 #if NO_UNALIGNED_ACCESS
10057 #define RETURN_UNALIGNED(type, addr) \
10060 memcpy(&val, p + offset, sizeof(val)); \
10063 #define WRITE_UNALIGNED(type, addr, val) \
10064 memcpy(addr, &val, sizeof(type))
10066 #define RETURN_UNALIGNED(type, addr) \
10067 return *(type*)(p + offset);
10068 #define WRITE_UNALIGNED(type, addr, val) \
10069 (*(type *)(addr) = (val))
10073 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10077 MONO_ARCH_SAVE_REGS;
10079 RETURN_UNALIGNED(gpointer, p + offset);
10083 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10087 MONO_ARCH_SAVE_REGS;
10089 return *(unsigned char*)(p + offset);
10093 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10097 MONO_ARCH_SAVE_REGS;
10099 RETURN_UNALIGNED(gint16, p + offset);
10103 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10107 MONO_ARCH_SAVE_REGS;
10109 RETURN_UNALIGNED(gint32, p + offset);
10113 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10117 MONO_ARCH_SAVE_REGS;
10119 RETURN_UNALIGNED(gint64, p + offset);
10123 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10127 MONO_ARCH_SAVE_REGS;
10129 *(unsigned char*)(p + offset) = val;
10133 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10137 MONO_ARCH_SAVE_REGS;
10139 WRITE_UNALIGNED(gpointer, p + offset, val);
10143 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10147 MONO_ARCH_SAVE_REGS;
10149 WRITE_UNALIGNED(gint16, p + offset, val);
10153 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10157 MONO_ARCH_SAVE_REGS;
10159 WRITE_UNALIGNED(gint32, p + offset, val);
10163 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10167 MONO_ARCH_SAVE_REGS;
10169 WRITE_UNALIGNED(gint64, p + offset, val);
10173 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10175 MONO_ARCH_SAVE_REGS;
10180 return mono_string_new (mono_domain_get (), ptr);
10184 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10186 MONO_ARCH_SAVE_REGS;
10189 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10190 g_assert_not_reached ();
10193 return mono_string_new_len (mono_domain_get (), ptr, len);
10198 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10200 MonoDomain *domain = mono_domain_get ();
10204 MONO_ARCH_SAVE_REGS;
10212 return mono_string_new_utf16 (domain, ptr, len);
10216 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10218 MonoDomain *domain = mono_domain_get ();
10220 MONO_ARCH_SAVE_REGS;
10223 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10224 g_assert_not_reached ();
10227 return mono_string_new_utf16 (domain, ptr, len);
10232 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10234 MONO_ARCH_SAVE_REGS;
10236 return mono_string_from_bstr(ptr);
10240 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10242 MONO_ARCH_SAVE_REGS;
10244 return mono_string_to_bstr(ptr);
10249 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10250 int (STDCALL *AddRef)(gpointer pUnk);
10251 int (STDCALL *Release)(gpointer pUnk);
10255 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10257 MONO_ARCH_SAVE_REGS;
10259 mono_free_bstr (ptr);
10263 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10266 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10270 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10273 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10277 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10280 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10284 cominterop_get_idispatch_for_object (MonoObject* object)
10289 if (cominterop_object_is_rcw (object)) {
10290 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10291 mono_defaults.idispatch_class, TRUE);
10294 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10299 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10304 if (cominterop_object_is_rcw (object)) {
10305 MonoClass *klass = NULL;
10306 MonoRealProxy* real_proxy = NULL;
10309 klass = mono_object_class (object);
10310 if (klass != mono_defaults.transparent_proxy_class) {
10311 g_assert_not_reached ();
10315 real_proxy = ((MonoTransparentProxy*)object)->rp;
10317 g_assert_not_reached ();
10321 klass = mono_object_class (real_proxy);
10322 if (klass != mono_defaults.com_interop_proxy_class) {
10323 g_assert_not_reached ();
10327 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10328 g_assert_not_reached ();
10332 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10335 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10340 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10342 MonoObject* object = NULL;
10347 /* see if it is a CCW */
10348 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10354 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10356 return cominterop_get_idispatch_for_object (object);
10360 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10362 MonoClass* klass = NULL;
10365 g_assert (type->type);
10366 klass = mono_type_get_class (type->type);
10368 itf = cominterop_get_ccw (object, klass);
10375 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10377 return (MonoBoolean)cominterop_object_is_rcw (object);
10381 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10383 MonoComInteropProxy* proxy = NULL;
10384 gint32 ref_count = 0;
10387 g_assert (cominterop_object_is_rcw (object));
10389 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10392 ref_count = InterlockedDecrement (&proxy->ref_count);
10393 g_assert (ref_count >= 0);
10395 if (ref_count == 0)
10396 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10402 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10404 MONO_ARCH_SAVE_REGS;
10406 return cominterop_get_com_slot_for_method (m->method);
10410 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10412 MONO_ARCH_SAVE_REGS;
10414 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10418 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10424 MONO_ARCH_SAVE_REGS;
10426 MONO_CHECK_ARG_NULL (rtype);
10428 type = rtype->type;
10429 klass = mono_class_from_mono_type (type);
10430 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10432 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10434 MonoException *exc;
10436 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10437 exc = mono_get_exception_argument ("t", msg);
10439 mono_raise_exception (exc);
10443 return mono_class_native_size (klass, NULL);
10447 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10449 MonoMethod *method;
10452 MONO_ARCH_SAVE_REGS;
10454 MONO_CHECK_ARG_NULL (obj);
10455 MONO_CHECK_ARG_NULL (dst);
10457 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10461 pa [2] = &delete_old;
10463 mono_runtime_invoke (method, NULL, pa, NULL);
10467 ptr_to_structure (gpointer src, MonoObject *dst)
10469 MonoMethod *method;
10472 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10477 mono_runtime_invoke (method, NULL, pa, NULL);
10481 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10485 MONO_ARCH_SAVE_REGS;
10487 MONO_CHECK_ARG_NULL (src);
10488 MONO_CHECK_ARG_NULL (dst);
10490 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10492 if (t->type == MONO_TYPE_VALUETYPE) {
10493 MonoException *exc;
10496 tmp = g_strdup_printf ("Destination is a boxed value type.");
10497 exc = mono_get_exception_argument ("dst", tmp);
10500 mono_raise_exception (exc);
10504 ptr_to_structure (src, dst);
10508 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10510 MonoDomain *domain = mono_domain_get ();
10513 MONO_ARCH_SAVE_REGS;
10515 MONO_CHECK_ARG_NULL (src);
10516 MONO_CHECK_ARG_NULL (type);
10518 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10520 ptr_to_structure (src, res);
10526 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10528 MonoMarshalType *info;
10531 int match_index = -1;
10533 MONO_ARCH_SAVE_REGS;
10535 MONO_CHECK_ARG_NULL (type);
10536 MONO_CHECK_ARG_NULL (field_name);
10538 fname = mono_string_to_utf8 (field_name);
10539 klass = mono_class_from_mono_type (type->type);
10541 while (klass && match_index == -1) {
10542 MonoClassField* field;
10544 gpointer iter = NULL;
10545 while ((field = mono_class_get_fields (klass, &iter))) {
10546 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10548 if (!strcmp (fname, field->name)) {
10555 if (match_index == -1)
10556 klass = klass->parent;
10561 if(match_index == -1) {
10562 MonoException* exc;
10565 /* Get back original class instance */
10566 klass = mono_class_from_mono_type (type->type);
10568 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10569 exc = mono_get_exception_argument ("fieldName", tmp);
10572 mono_raise_exception ((MonoException*)exc);
10575 info = mono_marshal_load_type_info (klass);
10576 return info->fields [match_index].offset;
10580 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10582 MONO_ARCH_SAVE_REGS;
10584 return mono_string_to_utf8 (string);
10588 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10590 MONO_ARCH_SAVE_REGS;
10592 if (string == NULL)
10595 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10596 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10597 res [mono_string_length (string)] = 0;
10603 mono_struct_delete_old (MonoClass *klass, char *ptr)
10605 MonoMarshalType *info;
10608 info = mono_marshal_load_type_info (klass);
10610 for (i = 0; i < info->num_fields; i++) {
10611 MonoMarshalNative ntype;
10612 MonoMarshalConv conv;
10613 MonoType *ftype = info->fields [i].field->type;
10616 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10619 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10620 klass->unicode, &conv);
10622 cpos = ptr + info->fields [i].offset;
10625 case MONO_MARSHAL_CONV_NONE:
10626 if (MONO_TYPE_ISSTRUCT (ftype)) {
10627 mono_struct_delete_old (ftype->data.klass, cpos);
10631 case MONO_MARSHAL_CONV_STR_LPWSTR:
10632 /* We assume this field points inside a MonoString */
10634 case MONO_MARSHAL_CONV_STR_LPTSTR:
10635 #ifdef PLATFORM_WIN32
10636 /* We assume this field points inside a MonoString
10640 case MONO_MARSHAL_CONV_STR_LPSTR:
10641 case MONO_MARSHAL_CONV_STR_BSTR:
10642 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10643 case MONO_MARSHAL_CONV_STR_TBSTR:
10644 mono_marshal_free (*(gpointer *)cpos);
10654 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10658 MONO_ARCH_SAVE_REGS;
10660 MONO_CHECK_ARG_NULL (src);
10661 MONO_CHECK_ARG_NULL (type);
10663 klass = mono_class_from_mono_type (type->type);
10665 mono_struct_delete_old (klass, (char *)src);
10669 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10673 MONO_ARCH_SAVE_REGS;
10675 if ((gulong)size == 0)
10676 /* This returns a valid pointer for size 0 on MS.NET */
10679 #ifdef PLATFORM_WIN32
10680 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10682 res = g_try_malloc ((gulong)size);
10685 mono_gc_out_of_memory ((gulong)size);
10691 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10696 mono_gc_out_of_memory ((gulong)size);
10700 #ifdef PLATFORM_WIN32
10701 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10703 res = g_try_realloc (ptr, (gulong)size);
10706 mono_gc_out_of_memory ((gulong)size);
10712 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10714 MONO_ARCH_SAVE_REGS;
10716 #ifdef PLATFORM_WIN32
10724 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10726 MONO_ARCH_SAVE_REGS;
10728 #ifdef PLATFORM_WIN32
10729 return CoTaskMemAlloc (size);
10731 return g_try_malloc ((gulong)size);
10736 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10738 MONO_ARCH_SAVE_REGS;
10740 #ifdef PLATFORM_WIN32
10741 CoTaskMemFree (ptr);
10748 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10750 MONO_ARCH_SAVE_REGS;
10752 #ifdef PLATFORM_WIN32
10753 return CoTaskMemRealloc (ptr, size);
10755 return g_try_realloc (ptr, (gulong)size);
10760 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10762 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10766 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10768 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10771 /* Only used for COM RCWs */
10773 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10776 MonoDomain *domain;
10779 MONO_ARCH_SAVE_REGS;
10781 domain = mono_object_domain (type);
10782 klass = mono_class_from_mono_type (type->type);
10784 /* call mono_object_new_alloc_specific instead of mono_object_new
10785 * because we want to actually create object. mono_object_new checks
10786 * to see if type is import and creates transparent proxy. this method
10787 * is called by the corresponding real proxy to create the real RCW.
10788 * Constructor does not need to be called. Will be called later.
10790 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10795 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10797 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10802 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10805 if (obj->itf_hash) {
10806 guint32 gchandle = 0;
10807 mono_cominterop_lock ();
10808 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10810 mono_gchandle_free (gchandle);
10811 g_hash_table_remove (rcw_hash, obj->iunknown);
10814 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10815 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10816 obj->itf_hash = obj->iunknown = NULL;
10817 mono_cominterop_unlock ();
10822 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
10824 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
10828 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
10830 guint32 gchandle = 0;
10832 mono_cominterop_lock ();
10833 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
10834 mono_cominterop_unlock ();
10837 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
10839 mono_cominterop_lock ();
10840 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
10841 mono_cominterop_unlock ();
10844 MonoComInteropProxy*
10845 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
10847 MonoComInteropProxy* proxy = NULL;
10848 guint32 gchandle = 0;
10850 mono_cominterop_lock ();
10852 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
10853 mono_cominterop_unlock ();
10855 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
10856 /* proxy is null means we need to free up old RCW */
10858 mono_gchandle_free (gchandle);
10859 g_hash_table_remove (rcw_hash, pUnk);
10866 * mono_marshal_is_loading_type_info:
10868 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10872 mono_marshal_is_loading_type_info (MonoClass *klass)
10874 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10876 return g_slist_find (loads_list, klass) != NULL;
10880 * mono_marshal_load_type_info:
10882 * Initialize klass->marshal_info using information from metadata. This function can
10883 * recursively call itself, and the caller is responsible to avoid that by calling
10884 * mono_marshal_is_loading_type_info () beforehand.
10886 * LOCKING: Acquires the loader lock.
10889 mono_marshal_load_type_info (MonoClass* klass)
10892 guint32 native_size = 0, min_align = 1;
10893 MonoMarshalType *info;
10894 MonoClassField* field;
10897 GSList *loads_list;
10899 g_assert (klass != NULL);
10901 if (klass->marshal_info)
10902 return klass->marshal_info;
10904 if (!klass->inited)
10905 mono_class_init (klass);
10907 mono_loader_lock ();
10909 if (klass->marshal_info) {
10910 mono_loader_unlock ();
10911 return klass->marshal_info;
10915 * This function can recursively call itself, so we keep the list of classes which are
10916 * under initialization in a TLS list.
10918 g_assert (!mono_marshal_is_loading_type_info (klass));
10919 loads_list = TlsGetValue (load_type_info_tls_id);
10920 loads_list = g_slist_prepend (loads_list, klass);
10921 TlsSetValue (load_type_info_tls_id, loads_list);
10924 while ((field = mono_class_get_fields (klass, &iter))) {
10925 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10927 if (mono_field_is_deleted (field))
10932 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10934 /* The mempool is protected by the loader lock */
10935 info = mono_mempool_alloc0 (klass->image->mempool, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
10936 info->num_fields = count;
10938 /* Try to find a size for this type in metadata */
10939 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10941 if (klass->parent) {
10942 int parent_size = mono_class_native_size (klass->parent, NULL);
10944 /* Add parent size to real size */
10945 native_size += parent_size;
10946 info->native_size = parent_size;
10951 while ((field = mono_class_get_fields (klass, &iter))) {
10955 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10958 if (mono_field_is_deleted (field))
10960 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10961 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10962 NULL, NULL, &info->fields [j].mspec);
10964 info->fields [j].field = field;
10966 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10967 (strcmp (field->name, "$PRIVATE$") == 0)) {
10968 /* This field is a hack inserted by MCS to empty structures */
10973 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10974 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10975 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10976 &align, TRUE, klass->unicode);
10977 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10978 min_align = MAX (align, min_align);
10979 info->fields [j].offset = info->native_size;
10980 info->fields [j].offset += align - 1;
10981 info->fields [j].offset &= ~(align - 1);
10982 info->native_size = info->fields [j].offset + size;
10984 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10985 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10986 &align, TRUE, klass->unicode);
10987 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10988 min_align = MAX (align, min_align);
10989 info->fields [j].offset = field->offset - sizeof (MonoObject);
10990 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10996 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10997 info->native_size = MAX (native_size, info->native_size);
11000 if (info->native_size & (min_align - 1)) {
11001 info->native_size += min_align - 1;
11002 info->native_size &= ~(min_align - 1);
11005 /* Update the class's blittable info, if the layouts don't match */
11006 if (info->native_size != mono_class_value_size (klass, NULL))
11007 klass->blittable = FALSE;
11009 /* If this is an array type, ensure that we have element info */
11010 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11011 mono_marshal_load_type_info (klass->element_class);
11014 loads_list = TlsGetValue (load_type_info_tls_id);
11015 loads_list = g_slist_remove (loads_list, klass);
11016 TlsSetValue (load_type_info_tls_id, loads_list);
11018 klass->marshal_info = info;
11020 mono_loader_unlock ();
11022 return klass->marshal_info;
11026 * mono_class_native_size:
11029 * Returns: the native size of an object instance (when marshaled
11030 * to unmanaged code)
11033 mono_class_native_size (MonoClass *klass, guint32 *align)
11035 if (!klass->marshal_info) {
11036 if (mono_marshal_is_loading_type_info (klass)) {
11041 mono_marshal_load_type_info (klass);
11046 *align = klass->min_align;
11048 return klass->marshal_info->native_size;
11052 * mono_type_native_stack_size:
11053 * @t: the type to return the size it uses on the stack
11055 * Returns: the number of bytes required to hold an instance of this
11056 * type on the native stack
11059 mono_type_native_stack_size (MonoType *t, guint32 *align)
11063 g_assert (t != NULL);
11074 case MONO_TYPE_BOOLEAN:
11075 case MONO_TYPE_CHAR:
11084 case MONO_TYPE_STRING:
11085 case MONO_TYPE_OBJECT:
11086 case MONO_TYPE_CLASS:
11087 case MONO_TYPE_SZARRAY:
11088 case MONO_TYPE_PTR:
11089 case MONO_TYPE_FNPTR:
11090 case MONO_TYPE_ARRAY:
11091 case MONO_TYPE_TYPEDBYREF:
11102 case MONO_TYPE_VALUETYPE: {
11105 if (t->data.klass->enumtype)
11106 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
11108 size = mono_class_native_size (t->data.klass, align);
11109 *align = *align + 3;
11119 g_error ("type 0x%02x unknown", t->type);
11124 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11125 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11126 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11127 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11130 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11131 gboolean as_field, gboolean unicode)
11133 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11136 switch (native_type) {
11137 case MONO_NATIVE_BOOLEAN:
11140 case MONO_NATIVE_I1:
11141 case MONO_NATIVE_U1:
11144 case MONO_NATIVE_I2:
11145 case MONO_NATIVE_U2:
11146 case MONO_NATIVE_VARIANTBOOL:
11149 case MONO_NATIVE_I4:
11150 case MONO_NATIVE_U4:
11151 case MONO_NATIVE_ERROR:
11154 case MONO_NATIVE_I8:
11155 case MONO_NATIVE_U8:
11156 *align = ALIGNMENT(guint64);
11158 case MONO_NATIVE_R4:
11161 case MONO_NATIVE_R8:
11162 *align = ALIGNMENT(double);
11164 case MONO_NATIVE_INT:
11165 case MONO_NATIVE_UINT:
11166 case MONO_NATIVE_LPSTR:
11167 case MONO_NATIVE_LPWSTR:
11168 case MONO_NATIVE_LPTSTR:
11169 case MONO_NATIVE_BSTR:
11170 case MONO_NATIVE_ANSIBSTR:
11171 case MONO_NATIVE_TBSTR:
11172 case MONO_NATIVE_LPARRAY:
11173 case MONO_NATIVE_SAFEARRAY:
11174 case MONO_NATIVE_IUNKNOWN:
11175 case MONO_NATIVE_IDISPATCH:
11176 case MONO_NATIVE_INTERFACE:
11177 case MONO_NATIVE_ASANY:
11178 case MONO_NATIVE_FUNC:
11179 case MONO_NATIVE_LPSTRUCT:
11180 *align = ALIGNMENT(gpointer);
11181 return sizeof (gpointer);
11182 case MONO_NATIVE_STRUCT:
11183 klass = mono_class_from_mono_type (type);
11184 if (klass == mono_defaults.object_class &&
11185 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11189 return mono_class_native_size (klass, align);
11190 case MONO_NATIVE_BYVALTSTR: {
11191 int esize = unicode ? 2: 1;
11194 return mspec->data.array_data.num_elem * esize;
11196 case MONO_NATIVE_BYVALARRAY: {
11197 // FIXME: Have to consider ArraySubType
11199 klass = mono_class_from_mono_type (type);
11200 if (klass->element_class == mono_defaults.char_class) {
11201 esize = unicode ? 2 : 1;
11204 esize = mono_class_native_size (klass->element_class, align);
11207 return mspec->data.array_data.num_elem * esize;
11209 case MONO_NATIVE_CUSTOM:
11210 *align = sizeof (gpointer);
11211 return sizeof (gpointer);
11213 case MONO_NATIVE_CURRENCY:
11214 case MONO_NATIVE_VBBYREFSTR:
11216 g_error ("native type %02x not implemented", native_type);
11219 g_assert_not_reached ();
11224 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11232 t = &o->vtable->klass->byval_arg;
11236 case MONO_TYPE_PTR:
11239 case MONO_TYPE_BOOLEAN:
11242 case MONO_TYPE_CHAR:
11247 return mono_object_unbox (o);
11249 case MONO_TYPE_STRING:
11250 switch (string_encoding) {
11251 case MONO_NATIVE_LPWSTR:
11252 return mono_string_to_utf16 ((MonoString*)o);
11254 case MONO_NATIVE_LPSTR:
11255 return mono_string_to_lpstr ((MonoString*)o);
11258 g_warning ("marshaling conversion %d not implemented", string_encoding);
11259 g_assert_not_reached ();
11262 case MONO_TYPE_CLASS:
11263 case MONO_TYPE_VALUETYPE: {
11264 MonoMethod *method;
11267 MonoBoolean delete_old = FALSE;
11269 klass = t->data.klass;
11271 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11274 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11275 klass->blittable || klass->enumtype))
11276 return mono_object_unbox (o);
11278 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11280 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11281 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11285 pa [2] = &delete_old;
11287 mono_runtime_invoke (method, NULL, pa, NULL);
11294 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11300 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11308 t = &o->vtable->klass->byval_arg;
11310 case MONO_TYPE_STRING:
11311 switch (string_encoding) {
11312 case MONO_NATIVE_LPWSTR:
11313 case MONO_NATIVE_LPSTR:
11314 mono_marshal_free (ptr);
11317 g_warning ("marshaling conversion %d not implemented", string_encoding);
11318 g_assert_not_reached ();
11321 case MONO_TYPE_CLASS:
11322 case MONO_TYPE_VALUETYPE: {
11323 klass = t->data.klass;
11325 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11326 klass->blittable || klass->enumtype))
11329 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11330 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11336 mono_runtime_invoke (method, NULL, pa, NULL);
11339 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11340 mono_struct_delete_old (klass, ptr);
11343 mono_marshal_free (ptr);
11352 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11354 MonoMethodSignature *sig, *csig;
11355 MonoMethodBuilder *mb;
11359 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11360 mb->method->slot = -1;
11362 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11363 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11365 sig = mono_method_signature (method);
11366 csig = signature_dup (method->klass->image, sig);
11367 csig->generic_param_count = 0;
11369 mono_mb_emit_ldarg (mb, 0);
11370 for (i = 0; i < csig->param_count; i++)
11371 mono_mb_emit_ldarg (mb, i + 1);
11372 mono_mb_emit_managed_call (mb, method, NULL);
11373 mono_mb_emit_byte (mb, CEE_RET);
11375 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11377 /* We can corlib internal methods */
11378 res->skip_visibility = TRUE;
11386 * The mono_win32_compat_* functions are implementations of inline
11387 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11388 * although not exported by kernel32.
11390 * We map the appropiate kernel32 entries to these functions using
11391 * dllmaps declared in the global etc/mono/config.
11395 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11397 if (!dest || !source)
11400 memcpy (dest, source, length);
11404 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11406 memset (dest, fill, length);
11410 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11412 if (!dest || !source)
11415 memmove (dest, source, length);
11419 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11421 memset (dest, 0, length);
11424 /* Put COM Interop related stuff here */
11427 * cominterop_get_ccw_object:
11428 * @ccw_entry: a pointer to the CCWEntry
11429 * @verify: verify ccw_entry is in fact a ccw
11431 * Returns: the corresponding object for the CCW
11434 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11436 MonoCCW *ccw = NULL;
11438 /* no CCW's exist yet */
11439 if (!ccw_interface_hash)
11443 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11446 ccw = ccw_entry->ccw;
11450 return mono_gchandle_get_target (ccw->gc_handle);
11456 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11458 MonoMethodSignature *sig, *csig;
11459 sig = mono_method_signature (method);
11460 /* we copy the signature, so that we can modify it */
11461 /* FIXME: which to use? */
11462 csig = signature_dup (method->klass->image, sig);
11463 /* csig = mono_metadata_signature_dup (sig); */
11465 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11466 #ifdef PLATFORM_WIN32
11467 csig->call_convention = MONO_CALL_STDCALL;
11469 csig->call_convention = MONO_CALL_C;
11474 m->image = method->klass->image;
11482 * cominterop_get_ccw:
11483 * @object: a pointer to the object
11484 * @itf: interface type needed
11486 * Returns: a value indicating if the object is a
11487 * Runtime Callable Wrapper (RCW) for a COM object
11490 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11493 MonoCCW *ccw = NULL;
11494 MonoCCWInterface* ccw_entry = NULL;
11495 gpointer *vtable = NULL;
11496 static gpointer iunknown[3] = {NULL, NULL, NULL};
11497 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11498 MonoClass* iface = NULL;
11499 MonoClass* klass = NULL;
11500 EmitMarshalContext m;
11501 int start_slot = 3;
11502 int method_count = 0;
11503 GList *ccw_list, *ccw_list_item;
11504 MonoCustomAttrInfo *cinfo = NULL;
11509 klass = mono_object_get_class (object);
11512 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11513 if (!ccw_interface_hash)
11514 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11516 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11518 ccw_list_item = ccw_list;
11519 while (ccw_list_item) {
11520 MonoCCW* ccw_iter = ccw_list_item->data;
11521 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11525 ccw_list_item = g_list_next(ccw_list_item);
11528 if (!iunknown [0]) {
11529 iunknown [0] = cominterop_ccw_queryinterface;
11530 iunknown [1] = cominterop_ccw_addref;
11531 iunknown [2] = cominterop_ccw_release;
11534 if (!idispatch [0]) {
11535 idispatch [0] = cominterop_ccw_get_type_info_count;
11536 idispatch [1] = cominterop_ccw_get_type_info;
11537 idispatch [2] = cominterop_ccw_get_ids_of_names;
11538 idispatch [3] = cominterop_ccw_invoke;
11542 ccw = g_new0 (MonoCCW, 1);
11543 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11544 ccw->ref_count = 0;
11545 /* just alloc a weak handle until we are addref'd*/
11546 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11549 ccw_list = g_list_alloc ();
11550 ccw_list->data = ccw;
11553 ccw_list = g_list_append (ccw_list, ccw);
11554 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11555 /* register for finalization to clean up ccw */
11556 mono_object_register_finalizer (object);
11559 cinfo = mono_custom_attrs_from_class (itf);
11561 static MonoClass* coclass_attribute = NULL;
11562 if (!coclass_attribute)
11563 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11564 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11565 g_assert(itf->interface_count && itf->interfaces[0]);
11566 itf = itf->interfaces[0];
11568 if (!cinfo->cached)
11569 mono_custom_attrs_free (cinfo);
11573 if (iface == mono_defaults.iunknown_class) {
11576 else if (iface == mono_defaults.idispatch_class) {
11580 method_count += iface->method.count;
11581 start_slot = cominterop_get_com_slot_begin (iface);
11585 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11588 int vtable_index = method_count-1+start_slot;
11589 mono_loader_lock ();
11590 vtable = mono_mempool_alloc0 (klass->image->mempool, sizeof (gpointer)*(method_count+start_slot));
11591 mono_loader_unlock ();
11592 memcpy (vtable, iunknown, sizeof (iunknown));
11593 if (start_slot == 7)
11594 memcpy (vtable+3, idispatch, sizeof (idispatch));
11597 for (i = iface->method.count-1; i >= 0;i--) {
11598 int param_index = 0;
11599 MonoMethodBuilder *mb;
11600 MonoMarshalSpec ** mspecs;
11601 MonoMethod *wrapper_method, *adjust_method;
11602 MonoMethod *method = iface->methods [i];
11603 MonoMethodSignature* sig_adjusted;
11604 MonoMethodSignature* sig = mono_method_signature (method);
11605 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11608 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11609 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11610 sig_adjusted = mono_method_signature (adjust_method);
11612 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11613 mono_method_get_marshal_info (method, mspecs);
11616 /* move managed args up one */
11617 for (param_index = sig->param_count; param_index >= 1; param_index--)
11618 mspecs [param_index+1] = mspecs [param_index];
11620 /* first arg is IntPtr for interface */
11623 /* move return spec to last param */
11624 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11625 mspecs [sig_adjusted->param_count] = mspecs [0];
11629 cominterop_setup_marshal_context (&m, adjust_method);
11631 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11632 mono_loader_lock ();
11633 mono_marshal_lock ();
11634 wrapper_method = mono_mb_create_method (mb, sig_adjusted, sig_adjusted->param_count + 16);
11635 mono_marshal_unlock ();
11636 mono_loader_unlock ();
11638 /* skip visiblity since we call internal methods */
11639 wrapper_method->skip_visibility = TRUE;
11641 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11644 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11645 if (mspecs [param_index])
11646 mono_metadata_free_marshal_spec (mspecs [param_index]);
11650 ccw_entry = g_new0 (MonoCCWInterface, 1);
11651 ccw_entry->ccw = ccw;
11652 ccw_entry->vtable = vtable;
11653 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11654 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11661 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11669 * mono_marshal_free_ccw:
11670 * @object: the mono object
11672 * Returns: whether the object had a CCW
11675 mono_marshal_free_ccw (MonoObject* object)
11677 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11678 /* no ccw's were created */
11679 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11682 /* need to cache orig list address to remove from hash_table if empty */
11683 mono_cominterop_lock ();
11684 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11685 mono_cominterop_unlock ();
11690 ccw_list_item = ccw_list;
11691 while (ccw_list_item) {
11692 MonoCCW* ccw_iter = ccw_list_item->data;
11693 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11695 /* Looks like the GC NULLs the weakref handle target before running the
11696 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11697 if (!handle_target || handle_target == object) {
11698 /* remove all interfaces */
11699 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11700 g_hash_table_destroy (ccw_iter->vtable_hash);
11702 /* get next before we delete */
11703 ccw_list_item = g_list_next(ccw_list_item);
11705 /* remove ccw from list */
11706 ccw_list = g_list_remove (ccw_list, ccw_iter);
11710 ccw_list_item = g_list_next(ccw_list_item);
11713 /* if list is empty remove original address from hash */
11714 if (g_list_length (ccw_list) == 0)
11715 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11722 * cominterop_get_native_wrapper_adjusted:
11723 * @method: managed COM Interop method
11725 * Returns: the generated method to call with signature matching
11726 * the unmanaged COM Method signature
11728 static MonoMethod *
11729 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11731 static MonoMethod *get_hr_for_exception = NULL;
11732 MonoMethod *res = NULL;
11733 MonoMethodBuilder *mb;
11734 MonoMarshalSpec **mspecs;
11735 MonoMethodSignature *sig, *sig_native;
11736 MonoExceptionClause *main_clause = NULL;
11737 MonoMethodHeader *header;
11741 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11743 if (!get_hr_for_exception)
11744 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11746 sig = mono_method_signature (method);
11748 /* create unmanaged wrapper */
11749 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11751 sig_native = cominterop_method_signature (method);
11753 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11755 mono_method_get_marshal_info (method, mspecs);
11757 /* move managed args up one */
11758 for (i = sig->param_count; i >= 1; i--)
11759 mspecs [i+1] = mspecs [i];
11761 /* first arg is IntPtr for interface */
11764 /* move return spec to last param */
11765 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11766 mspecs [sig_native->param_count] = mspecs [0];
11770 if (!preserve_sig) {
11771 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11774 main_clause = g_new0 (MonoExceptionClause, 1);
11775 main_clause->try_offset = mono_mb_get_label (mb);
11778 /* load last param to store result if not preserve_sig and not void */
11779 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11780 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11782 /* the CCW -> object conversion */
11783 mono_mb_emit_ldarg (mb, 0);
11784 mono_mb_emit_icon (mb, FALSE);
11785 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11787 for (i = 0; i < sig->param_count; i++)
11788 mono_mb_emit_ldarg (mb, i+1);
11790 mono_mb_emit_managed_call (mb, method, NULL);
11792 if (!preserve_sig) {
11793 /* store result if not preserve_sig and we have one */
11794 if (!MONO_TYPE_IS_VOID (sig->ret))
11795 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11797 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11799 /* Main exception catch */
11800 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11801 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
11802 main_clause->data.catch_class = mono_defaults.object_class;
11805 main_clause->handler_offset = mono_mb_get_label (mb);
11806 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11807 mono_mb_emit_stloc (mb, hr);
11808 mono_mb_emit_branch (mb, CEE_LEAVE);
11809 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
11812 mono_mb_patch_branch (mb, pos_leave);
11814 mono_mb_emit_ldloc (mb, hr);
11817 mono_mb_emit_byte (mb, CEE_RET);
11819 mono_loader_lock ();
11820 mono_marshal_lock ();
11821 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
11822 mono_marshal_unlock ();
11823 mono_loader_unlock ();
11827 for (i = sig_native->param_count; i >= 0; i--)
11829 mono_metadata_free_marshal_spec (mspecs [i]);
11832 if (!preserve_sig) {
11833 header = ((MonoMethodNormal *)res)->header;
11834 header->num_clauses = 1;
11835 header->clauses = main_clause;
11842 * cominterop_mono_string_to_guid:
11844 * Converts the standard string representation of a GUID
11845 * to a 16 byte Microsoft GUID.
11848 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
11849 gunichar2 * chars = mono_string_chars (string);
11851 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
11853 for (i = 0; i < sizeof(indexes); i++)
11854 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
11858 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
11860 guint8 klass_guid [16];
11861 if (cominterop_class_guid (klass, klass_guid))
11862 return !memcmp (guid, klass_guid, sizeof (klass_guid));
11867 cominterop_ccw_addref (MonoCCWInterface* ccwe)
11869 gint32 ref_count = 0;
11870 MonoCCW* ccw = ccwe->ccw;
11872 g_assert (ccw->gc_handle);
11873 g_assert (ccw->ref_count >= 0);
11874 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
11875 if (ref_count == 1) {
11876 guint32 oldhandle = ccw->gc_handle;
11877 g_assert (oldhandle);
11878 /* since we now have a ref count, alloc a strong handle*/
11879 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
11880 mono_gchandle_free (oldhandle);
11886 cominterop_ccw_release (MonoCCWInterface* ccwe)
11888 gint32 ref_count = 0;
11889 MonoCCW* ccw = ccwe->ccw;
11891 g_assert (ccw->ref_count > 0);
11892 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
11893 if (ref_count == 0) {
11894 /* allow gc of object */
11895 guint32 oldhandle = ccw->gc_handle;
11896 g_assert (oldhandle);
11897 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
11898 mono_gchandle_free (oldhandle);
11903 #define MONO_S_OK 0x00000000L
11904 #define MONO_E_NOINTERFACE 0x80004002L
11905 #define MONO_E_NOTIMPL 0x80004001L
11908 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
11911 MonoClass *itf = NULL;
11913 MonoCCW* ccw = ccwe->ccw;
11914 MonoClass* klass = NULL;
11915 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
11918 klass = mono_object_class (object);
11923 /* handle IUnknown special */
11924 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
11925 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
11926 /* remember to addref on QI */
11927 cominterop_ccw_addref (*ppv);
11931 /* handle IDispatch special */
11932 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
11933 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
11934 /* remember to addref on QI */
11935 cominterop_ccw_addref (*ppv);
11939 ifaces = mono_class_get_implemented_interfaces (klass);
11941 for (i = 0; i < ifaces->len; ++i) {
11942 MonoClass *ic = NULL;
11943 ic = g_ptr_array_index (ifaces, i);
11944 if (cominterop_class_guid_equal (riid, ic)) {
11949 g_ptr_array_free (ifaces, TRUE);
11952 *ppv = cominterop_get_ccw (object, itf);
11953 /* remember to addref on QI */
11954 cominterop_ccw_addref (*ppv);
11958 return MONO_E_NOINTERFACE;
11962 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
11964 return MONO_E_NOTIMPL;
11968 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
11970 return MONO_E_NOTIMPL;
11974 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
11975 gunichar2** rgszNames, guint32 cNames,
11976 guint32 lcid, gint32 *rgDispId)
11978 return MONO_E_NOTIMPL;
11982 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
11983 gpointer riid, guint32 lcid,
11984 guint16 wFlags, gpointer pDispParams,
11985 gpointer pVarResult, gpointer pExcepInfo,
11988 return MONO_E_NOTIMPL;
11992 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11997 for (i = 0; i < len; ++i)
12001 g_assert (i < len);
12004 while (byte && !(byte & 1))
12006 g_assert (byte == 1);
12009 *bitmask = buf [i];
12013 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12015 MonoMethodBuilder *mb;
12016 MonoMethodSignature *sig, *csig;
12017 MonoExceptionClause *clause;
12018 MonoMethodHeader *header;
12023 int i, param_count, sig_size, pos_leave;
12027 klass = method->klass;
12028 image = method->klass->image;
12029 cache = image->thunk_invoke_cache;
12031 if ((res = mono_marshal_find_in_cache (cache, method)))
12034 sig = mono_method_signature (method);
12035 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12037 /* add "this" and exception param */
12038 param_count = sig->param_count + sig->hasthis + 1;
12040 /* dup & extend signature */
12041 csig = mono_metadata_signature_alloc (image, param_count);
12042 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12043 memcpy (csig, sig, sig_size);
12044 csig->param_count = param_count;
12047 csig->call_convention = MONO_CALL_DEFAULT;
12049 if (sig->hasthis) {
12051 csig->params [0] = &klass->byval_arg;
12052 /* move params up by one */
12053 for (i = 0; i < sig->param_count; i++)
12054 csig->params [i + 1] = sig->params [i];
12057 /* setup exception param as byref+[out] */
12058 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12059 &mono_defaults.exception_class->byval_arg);
12060 csig->params [param_count - 1]->byref = 1;
12061 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12063 /* convert struct return to object */
12064 if (MONO_TYPE_ISSTRUCT (sig->ret))
12065 csig->ret = &mono_defaults.object_class->byval_arg;
12067 /* local 0 (temp for exception object) */
12068 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12070 /* local 1 (temp for result) */
12071 if (!MONO_TYPE_IS_VOID (sig->ret))
12072 mono_mb_add_local (mb, sig->ret);
12074 /* clear exception arg */
12075 mono_mb_emit_ldarg (mb, param_count - 1);
12076 mono_mb_emit_byte (mb, CEE_LDNULL);
12077 mono_mb_emit_byte (mb, CEE_STIND_REF);
12080 mono_loader_lock ();
12081 clause = mono_mempool_alloc0 (image->mempool, sizeof (MonoExceptionClause));
12082 mono_loader_unlock ();
12083 clause->try_offset = mono_mb_get_label (mb);
12085 /* push method's args */
12086 for (i = 0; i < param_count - 1; i++) {
12090 mono_mb_emit_ldarg (mb, i);
12092 /* get the byval type of the param */
12093 klass = mono_class_from_mono_type (csig->params [i]);
12094 type = &klass->byval_arg;
12096 /* unbox struct args */
12097 if (MONO_TYPE_ISSTRUCT (type)) {
12098 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12100 /* byref args & and the "this" arg must remain a ptr.
12101 Otherwise make a copy of the value type */
12102 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12103 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12105 csig->params [i] = &mono_defaults.object_class->byval_arg;
12110 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12111 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12113 mono_mb_emit_op (mb, CEE_CALL, method);
12115 /* save result at local 1 */
12116 if (!MONO_TYPE_IS_VOID (sig->ret))
12117 mono_mb_emit_stloc (mb, 1);
12119 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12122 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12123 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12124 clause->data.catch_class = mono_defaults.object_class;
12126 clause->handler_offset = mono_mb_get_label (mb);
12128 /* store exception at local 0 */
12129 mono_mb_emit_stloc (mb, 0);
12130 mono_mb_emit_ldarg (mb, param_count - 1);
12131 mono_mb_emit_ldloc (mb, 0);
12132 mono_mb_emit_byte (mb, CEE_STIND_REF);
12133 mono_mb_emit_branch (mb, CEE_LEAVE);
12135 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12137 mono_mb_patch_branch (mb, pos_leave);
12140 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12141 mono_mb_emit_ldloc (mb, 1);
12143 /* box the return value */
12144 if (MONO_TYPE_ISSTRUCT (sig->ret))
12145 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12148 mono_mb_emit_byte (mb, CEE_RET);
12150 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12153 header = ((MonoMethodNormal *)res)->header;
12154 header->num_clauses = 1;
12155 header->clauses = clause;