2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
15 #include "metadata/marshal.h"
16 #include "metadata/method-builder.h"
17 #include "metadata/tabledefs.h"
18 #include "metadata/exception.h"
19 #include "metadata/appdomain.h"
20 #include "mono/metadata/debug-helpers.h"
21 #include "mono/metadata/threadpool.h"
22 #include "mono/metadata/threads.h"
23 #include "mono/metadata/monitor.h"
24 #include "mono/metadata/metadata-internals.h"
25 #include "mono/metadata/domain-internals.h"
26 #include "mono/metadata/gc-internal.h"
27 #include "mono/metadata/threads-types.h"
28 #include "mono/metadata/string-icalls.h"
29 #include "mono/metadata/attrdefs.h"
30 #include "mono/metadata/gc-internal.h"
31 #include "mono/utils/mono-counters.h"
35 /* #define DEBUG_RUNTIME_CODE */
37 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
41 MONO_MARSHAL_NONE, /* No marshalling needed */
42 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
43 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
44 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
45 } MonoXDomainMarshalType;
52 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
55 #include "mono/cil/opcode.def"
60 struct _MonoRemotingMethods {
62 MonoMethod *invoke_with_check;
63 MonoMethod *xdomain_invoke;
64 MonoMethod *xdomain_dispatch;
67 typedef struct _MonoRemotingMethods MonoRemotingMethods;
70 * This mutex protects the various marshalling related caches in MonoImage
71 * and a few other data structures static to this file.
72 * Note that when this lock is held it is not possible to take other runtime
73 * locks like the loader lock.
75 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
76 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
77 static CRITICAL_SECTION marshal_mutex;
79 /* This mutex protects the various cominterop related caches in MonoImage */
80 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
81 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
82 static CRITICAL_SECTION cominterop_mutex;
84 /* Maps wrapper methods to the methods they wrap */
85 static GHashTable *wrapper_hash;
87 static guint32 last_error_tls_id;
89 static guint32 load_type_info_tls_id;
92 delegate_hash_table_add (MonoDelegate *d);
95 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
98 mono_struct_delete_old (MonoClass *klass, char *ptr);
101 mono_marshal_string_to_utf16 (MonoString *s);
104 mono_marshal_string_to_utf16_copy (MonoString *s);
107 mono_string_to_lpstr (MonoString *string_obj);
110 mono_string_from_bstr (gpointer bstr);
113 mono_free_bstr (gpointer bstr);
115 static MonoStringBuilder *
116 mono_string_utf8_to_builder2 (char *text);
119 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
122 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
125 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
127 static MonoAsyncResult *
128 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_marshal_xdomain_copy_value (MonoObject *val);
137 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
140 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
143 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
146 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
148 static MonoReflectionType *
149 type_from_handle (MonoType *handle);
152 mono_marshal_set_last_error_windows (int error);
155 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions);
157 static void init_safe_handle (void);
159 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
160 static MonoMethod *sh_dangerous_add_ref;
161 static MonoMethod *sh_dangerous_release;
167 sh_dangerous_add_ref = mono_class_get_method_from_name (
168 mono_defaults.safehandle_class, "DangerousAddRef", 1);
169 sh_dangerous_release = mono_class_get_method_from_name (
170 mono_defaults.safehandle_class, "DangerousRelease", 0);
174 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
176 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
178 mono_register_jit_icall (func, name, sig, save);
181 static MonoMethodSignature*
182 signature_dup (MonoImage *image, MonoMethodSignature *sig)
184 MonoMethodSignature *res;
187 res = mono_metadata_signature_alloc (image, sig->param_count);
188 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
189 memcpy (res, sig, sigsize);
194 static MonoMethodSignature*
195 signature_no_pinvoke (MonoMethod *method)
197 MonoMethodSignature *sig = mono_method_signature (method);
199 sig = signature_dup (method->klass->image, sig);
200 sig->pinvoke = FALSE;
206 /* Begin COM Interop related stuff until seperate file */
209 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
210 #ifdef PLATFORM_WIN32
211 #define STDCALL __stdcall
216 /* Upon creation of a CCW, only allocate a weak handle and set the
217 * reference count to 0. If the unmanaged client code decides to addref and
218 * hold onto the CCW, I then allocate a strong handle. Once the reference count
219 * goes back to 0, convert back to a weak handle.
224 GHashTable* vtable_hash;
227 /* This type is the actual pointer passed to unmanaged code
228 * to represent a COM interface.
236 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
238 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
240 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
243 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
245 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
247 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
248 gunichar2** rgszNames, guint32 cNames,
249 guint32 lcid, gint32 *rgDispId);
251 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
252 gpointer riid, guint32 lcid,
253 guint16 wFlags, gpointer pDispParams,
254 gpointer pVarResult, gpointer pExcepInfo,
258 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
261 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
264 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
267 * cominterop_method_signature:
270 * Returns: the corresponding unmanaged method signature for a managed COM
273 static MonoMethodSignature*
274 cominterop_method_signature (MonoMethod* method)
276 MonoMethodSignature *res;
277 MonoImage *image = method->klass->image;
278 MonoMethodSignature *sig = mono_method_signature (method);
279 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
282 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
284 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
287 res = mono_metadata_signature_alloc (image, param_count);
288 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
289 memcpy (res, sig, sigsize);
291 // now move args forward one
292 for (i = sig->param_count-1; i >= 0; i--)
293 res->params[i+1] = sig->params[i];
295 // first arg is interface pointer
296 res->params[0] = &mono_defaults.int_class->byval_arg;
302 // last arg is return type
303 if (!MONO_TYPE_IS_VOID (sig->ret)) {
304 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
305 res->params[param_count-1]->byref = 1;
306 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
309 // return type is always int32 (HRESULT)
310 res->ret = &mono_defaults.int32_class->byval_arg;
314 res->pinvoke = FALSE;
320 res->param_count = param_count;
322 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
323 #ifdef PLATFORM_WIN32
324 res->call_convention = MONO_CALL_STDCALL;
326 res->call_convention = MONO_CALL_C;
333 * cominterop_get_function_pointer:
334 * @itf: a pointer to the COM interface
335 * @slot: the vtable slot of the method pointer to return
337 * Returns: the unmanaged vtable function pointer from the interface
340 cominterop_get_function_pointer (gpointer itf, int slot)
343 func = *((*(gpointer**)itf)+slot);
348 * cominterop_object_is_com_object:
349 * @obj: a pointer to the object
351 * Returns: a value indicating if the object is a
352 * Runtime Callable Wrapper (RCW) for a COM object
355 cominterop_object_is_rcw (MonoObject *obj)
357 MonoClass *klass = NULL;
358 MonoRealProxy* real_proxy = NULL;
361 klass = mono_object_class (obj);
362 if (klass != mono_defaults.transparent_proxy_class)
365 real_proxy = ((MonoTransparentProxy*)obj)->rp;
369 klass = mono_object_class (real_proxy);
370 return (klass && klass == mono_defaults.com_interop_proxy_class);
374 cominterop_get_com_slot_begin (MonoClass* klass)
376 static MonoClass *interface_type_attribute = NULL;
377 MonoCustomAttrInfo *cinfo = NULL;
378 MonoInterfaceTypeAttribute* itf_attr = NULL;
380 if (!interface_type_attribute)
381 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
382 cinfo = mono_custom_attrs_from_class (klass);
384 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
386 mono_custom_attrs_free (cinfo);
389 if (itf_attr && itf_attr->intType == 1)
390 return 3; /* 3 methods in IUnknown*/
392 return 7; /* 7 methods in IDispatch*/
396 * cominterop_get_method_interface:
397 * @method: method being called
399 * Returns: the MonoClass* representing the interface on which
400 * the method is defined.
403 cominterop_get_method_interface (MonoMethod* method)
405 MonoClass *ic = method->klass;
407 /* if method is on a class, we need to look up interface method exists on */
408 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
409 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
412 for (i = 0; i < ifaces->len; ++i) {
414 ic = g_ptr_array_index (ifaces, i);
415 offset = mono_class_interface_offset (method->klass, ic);
416 if (method->slot >= offset && method->slot < offset + ic->method.count)
420 g_ptr_array_free (ifaces, TRUE);
425 g_assert (MONO_CLASS_IS_INTERFACE (ic));
431 * cominterop_get_com_slot_for_method:
434 * Returns: the method's slot in the COM interface vtable
437 cominterop_get_com_slot_for_method (MonoMethod* method)
439 guint32 slot = method->slot;
440 MonoClass *ic = method->klass;
442 /* if method is on a class, we need to look up interface method exists on */
443 if (!MONO_CLASS_IS_INTERFACE(ic)) {
445 ic = cominterop_get_method_interface (method);
446 offset = mono_class_interface_offset (method->klass, ic);
447 g_assert(offset >= 0);
452 g_assert (MONO_CLASS_IS_INTERFACE (ic));
454 return slot + cominterop_get_com_slot_begin (ic);
459 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
462 cominterop_class_guid (MonoClass* klass, guint8* guid)
464 static MonoClass *GuidAttribute = NULL;
465 MonoCustomAttrInfo *cinfo;
467 /* Handle the GuidAttribute */
469 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
471 cinfo = mono_custom_attrs_from_class (klass);
473 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
478 mono_custom_attrs_free (cinfo);
480 cominterop_mono_string_to_guid (attr->guid, guid);
487 * cominterop_get_interface:
488 * @obj: managed wrapper object containing COM object
489 * @ic: interface type to retrieve for COM object
491 * Returns: the COM interface requested
494 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
499 g_assert (MONO_CLASS_IS_INTERFACE (ic));
501 mono_cominterop_lock ();
503 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
504 mono_cominterop_unlock ();
508 int found = cominterop_class_guid (ic, iid);
511 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
512 if (hr < 0 && throw_exception) {
513 static MonoMethod* throw_exception_for_hr = NULL;
515 void* params[1] = {&hr};
516 if (!throw_exception_for_hr)
517 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
518 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
519 mono_raise_exception (ex);
522 if (hr >= 0 && itf) {
523 mono_cominterop_lock ();
525 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
526 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
527 mono_cominterop_unlock ();
538 cominterop_get_hresult_for_exception (MonoException* exc)
545 mono_marshal_init (void)
547 static gboolean module_initialized = FALSE;
549 if (!module_initialized) {
550 char* com_provider_env = NULL;
551 module_initialized = TRUE;
552 InitializeCriticalSection (&marshal_mutex);
553 InitializeCriticalSection (&cominterop_mutex);
554 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
555 last_error_tls_id = TlsAlloc ();
556 load_type_info_tls_id = TlsAlloc ();
558 com_provider_env = getenv ("MONO_COM");
559 if (com_provider_env && !strcmp(com_provider_env, "MS"))
560 com_provider = MONO_COM_MS;
562 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
563 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
564 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
565 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
566 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
567 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
568 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
569 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
570 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
571 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
572 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
573 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
574 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
575 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
576 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
577 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
578 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
579 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
580 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
581 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
582 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
583 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
584 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
585 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
586 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
587 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
588 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
589 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
590 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
591 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
592 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
593 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
594 register_icall (g_free, "g_free", "void ptr", FALSE);
595 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
596 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
597 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
598 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
599 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
600 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
601 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
602 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
603 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
604 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
605 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
606 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
607 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
608 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
609 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
610 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
611 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
612 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
613 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
614 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
615 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
616 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
621 mono_marshal_cleanup (void)
623 g_hash_table_destroy (wrapper_hash);
624 TlsFree (load_type_info_tls_id);
625 TlsFree (last_error_tls_id);
626 DeleteCriticalSection (&marshal_mutex);
627 DeleteCriticalSection (&cominterop_mutex);
630 MonoClass *byte_array_class;
631 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
632 static MonoMethod *method_set_context, *method_get_context;
633 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
636 mono_remoting_marshal_init (void)
640 static gboolean module_initialized = FALSE;
642 if (!module_initialized) {
643 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
644 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
645 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
646 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
648 klass = mono_defaults.real_proxy_class;
649 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
651 klass = mono_defaults.exception_class;
652 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
654 klass = mono_defaults.thread_class;
655 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
657 klass = mono_defaults.appdomain_class;
658 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
659 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
661 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
662 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
664 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
665 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
667 module_initialized = TRUE;
672 mono_delegate_to_ftnptr (MonoDelegate *delegate)
674 MonoMethod *method, *wrapper;
680 if (delegate->delegate_trampoline)
681 return delegate->delegate_trampoline;
683 klass = ((MonoObject *)delegate)->vtable->klass;
684 g_assert (klass->delegate);
686 method = delegate->method;
688 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
690 delegate->delegate_trampoline = mono_compile_method (wrapper);
692 // Add the delegate to the delegate hash table
693 delegate_hash_table_add (delegate);
695 /* when the object is collected, collect the dynamic method, too */
696 mono_object_register_finalizer ((MonoObject*)delegate);
698 return delegate->delegate_trampoline;
702 * this hash table maps from a delegate trampoline object to a weak reference
703 * of the delegate. As an optimizations with a non-moving GC we store the
704 * object pointer itself, otherwise we use a GC handle.
706 static GHashTable *delegate_hash_table;
709 delegate_hash_table_new (void) {
710 return g_hash_table_new (NULL, NULL);
714 delegate_hash_table_remove (MonoDelegate *d)
716 #ifdef HAVE_MOVING_COLLECTOR
719 mono_marshal_lock ();
720 if (delegate_hash_table == NULL)
721 delegate_hash_table = delegate_hash_table_new ();
722 #ifdef HAVE_MOVING_COLLECTOR
723 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
725 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
726 mono_marshal_unlock ();
727 #ifdef HAVE_MOVING_COLLECTOR
728 mono_gchandle_free (gchandle);
733 delegate_hash_table_add (MonoDelegate *d)
735 #ifdef HAVE_MOVING_COLLECTOR
736 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
738 mono_marshal_lock ();
739 if (delegate_hash_table == NULL)
740 delegate_hash_table = delegate_hash_table_new ();
741 #ifdef HAVE_MOVING_COLLECTOR
742 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
744 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
746 mono_marshal_unlock ();
750 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
752 #ifdef HAVE_MOVING_COLLECTOR
757 mono_marshal_lock ();
758 if (delegate_hash_table == NULL)
759 delegate_hash_table = delegate_hash_table_new ();
761 #ifdef HAVE_MOVING_COLLECTOR
762 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
763 mono_marshal_unlock ();
765 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
769 d = g_hash_table_lookup (delegate_hash_table, ftn);
770 mono_marshal_unlock ();
773 /* This is a native function, so construct a delegate for it */
774 static MonoClass *UnmanagedFunctionPointerAttribute;
775 MonoMethodSignature *sig;
777 MonoMarshalSpec **mspecs;
778 MonoCustomAttrInfo *cinfo;
779 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
780 MonoMethod *invoke = mono_get_delegate_invoke (klass);
781 MonoMethodPInvoke piinfo;
784 memset (&piinfo, 0, sizeof (piinfo));
785 if (!UnmanagedFunctionPointerAttribute)
786 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
788 /* The attribute is only available in Net 2.0 */
789 if (UnmanagedFunctionPointerAttribute) {
791 * The pinvoke attributes are stored in a real custom attribute so we have to
794 cinfo = mono_custom_attrs_from_class (klass);
796 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
798 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
801 mono_custom_attrs_free (cinfo);
805 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
806 mono_method_get_marshal_info (invoke, mspecs);
807 /* Freed below so don't alloc from mempool */
808 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
811 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
813 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
815 mono_metadata_free_marshal_spec (mspecs [i]);
819 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
820 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
823 if (d->object.vtable->domain != mono_domain_get ())
824 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
830 mono_delegate_free_ftnptr (MonoDelegate *delegate)
835 delegate_hash_table_remove (delegate);
837 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
839 if (!delegate->target) {
840 /* The wrapper method is shared between delegates -> no need to free it */
845 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
848 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
853 mono_array_to_savearray (MonoArray *array)
858 g_assert_not_reached ();
863 mono_array_to_lparray (MonoArray *array)
868 /* fixme: maybe we need to make a copy */
869 return array->vector;
873 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
875 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
877 if (elclass == mono_defaults.byte_class) {
878 GError *error = NULL;
882 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
885 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
889 g_error_free (error);
892 g_assert_not_reached ();
896 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
898 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
900 if (elclass == mono_defaults.byte_class) {
902 GError *error = NULL;
904 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
906 MonoException *exc = mono_get_exception_argument ("string", error->message);
907 g_error_free (error);
908 mono_raise_exception (exc);
911 memcpy (native_arr, as, MIN (strlen (as), elnum));
914 g_assert_not_reached ();
919 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
921 GError *error = NULL;
931 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
933 if (items_written > mono_stringbuilder_capacity (sb))
934 items_written = mono_stringbuilder_capacity (sb);
937 if (! sb->str || sb->str == sb->cached_str) {
938 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
939 sb->cached_str = NULL;
942 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
943 sb->length = items_written;
945 g_error_free (error);
951 mono_string_utf8_to_builder2 (char *text)
954 MonoStringBuilder *sb;
955 static MonoClass *string_builder_class;
956 static MonoMethod *sb_ctor;
963 if (!string_builder_class) {
964 MonoMethodDesc *desc;
966 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
967 g_assert (string_builder_class);
968 desc = mono_method_desc_new (":.ctor(int)", FALSE);
969 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
971 mono_method_desc_free (desc);
976 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
979 mono_runtime_invoke (sb_ctor, sb, args, &exc);
982 mono_string_utf8_to_builder (sb, text);
988 * FIXME: This routine does not seem to do what it seems to do
989 * the @text is never copied into the string builder
992 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
999 g_assert (mono_string_chars (sb->str) == text);
1001 for (len = 0; text [len] != 0; ++len)
1008 * mono_string_builder_to_utf8:
1009 * @sb: the string builder
1011 * Converts to utf8 the contents of the MonoStringBuilder.
1013 * Returns: a utf8 string with the contents of the StringBuilder.
1015 * The return value must be released with g_free.
1018 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1020 GError *error = NULL;
1027 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
1029 * The sb could have been allocated with the default capacity and be empty.
1030 * we need to alloc a buffer of the default capacity in this case.
1032 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1033 sb->cached_str = NULL;
1036 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
1038 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
1040 g_error_free (error);
1041 mono_marshal_free (res);
1042 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1044 memcpy (res, tmp, sb->length + 1);
1052 * mono_string_builder_to_utf16:
1053 * @sb: the string builder
1055 * Converts to utf16 the contents of the MonoStringBuilder.
1057 * Returns: a utf16 string with the contents of the StringBuilder.
1059 * The return value must not be freed.
1062 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1070 * The stringbuilder might not have ownership of this string. If this is
1071 * the case, we must duplicate the string, so that we don't munge immutable
1074 if (sb->str == sb->cached_str) {
1076 * The sb could have been allocated with the default capacity and be empty.
1077 * we need to alloc a buffer of the default capacity in this case.
1079 if (sb->str->length == 0)
1080 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1082 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1083 sb->cached_str = NULL;
1086 return mono_string_chars (sb->str);
1090 mono_string_to_lpstr (MonoString *s)
1092 #ifdef PLATFORM_WIN32
1095 GError *error = NULL;
1101 as = CoTaskMemAlloc (1);
1106 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1108 MonoException *exc = mono_get_exception_argument ("string", error->message);
1109 g_error_free (error);
1110 mono_raise_exception(exc);
1113 as = CoTaskMemAlloc (len + 1);
1114 memcpy (as, tmp, len + 1);
1119 return mono_string_to_utf8 (s);
1124 mono_string_to_ansibstr (MonoString *string_obj)
1126 g_error ("UnmanagedMarshal.BStr is not implemented.");
1130 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
1131 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
1132 typedef void (*SysFreeStringFunc)(gunichar* str);
1134 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
1135 static SysStringLenFunc sys_string_len_ms = NULL;
1136 static SysFreeStringFunc sys_free_string_ms = NULL;
1139 init_com_provider_ms (void)
1141 static gboolean initialized = FALSE;
1143 MonoDl *module = NULL;
1144 const char* scope = "liboleaut32.so";
1149 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
1151 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
1152 g_assert_not_reached ();
1155 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
1157 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
1158 g_assert_not_reached ();
1162 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
1164 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
1165 g_assert_not_reached ();
1169 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
1171 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
1172 g_assert_not_reached ();
1181 mono_string_to_bstr (MonoString *string_obj)
1185 #ifdef PLATFORM_WIN32
1186 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1188 if (com_provider == MONO_COM_DEFAULT) {
1189 int slen = mono_string_length (string_obj);
1190 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
1191 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
1194 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
1195 * ((guint32 *) ret) = slen * sizeof(gunichar2);
1196 ret [4 + slen * sizeof(gunichar2)] = 0;
1197 ret [5 + slen * sizeof(gunichar2)] = 0;
1200 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1201 gpointer ret = NULL;
1202 gunichar* str = NULL;
1204 len = mono_string_length (string_obj);
1205 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
1207 ret = sys_alloc_string_len_ms (str, len);
1211 g_assert_not_reached ();
1217 mono_string_from_bstr (gpointer bstr)
1221 #ifdef PLATFORM_WIN32
1222 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1224 if (com_provider == MONO_COM_DEFAULT) {
1225 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
1226 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1227 MonoString* str = NULL;
1229 gunichar2* utf16 = NULL;
1231 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
1232 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
1236 g_assert_not_reached ();
1243 mono_free_bstr (gpointer bstr)
1247 #ifdef PLATFORM_WIN32
1248 SysFreeString ((BSTR)bstr);
1250 if (com_provider == MONO_COM_DEFAULT) {
1251 g_free (((char *)bstr) - 4);
1252 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
1253 sys_free_string_ms (bstr);
1255 g_assert_not_reached ();
1262 * mono_string_to_byvalstr:
1263 * @dst: Where to store the null-terminated utf8 decoded string.
1264 * @src: the MonoString to copy.
1265 * @size: the maximum number of bytes to copy.
1267 * Copies the MonoString pointed to by @src as a utf8 string
1268 * into @dst, it copies at most @size bytes into the destination.
1271 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1276 g_assert (dst != NULL);
1277 g_assert (size > 0);
1279 memset (dst, 0, size);
1283 s = mono_string_to_utf8 (src);
1284 len = MIN (size, strlen (s));
1287 memcpy (dst, s, len);
1292 * mono_string_to_byvalwstr:
1293 * @dst: Where to store the null-terminated utf16 decoded string.
1294 * @src: the MonoString to copy.
1295 * @size: the maximum number of bytes to copy.
1297 * Copies the MonoString pointed to by @src as a utf16 string into
1298 * @dst, it copies at most @size bytes into the destination (including
1299 * a terminating 16-bit zero terminator).
1302 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1306 g_assert (dst != NULL);
1307 g_assert (size > 1);
1310 memset (dst, 0, size * 2);
1314 len = MIN (size, (mono_string_length (src)));
1315 memcpy (dst, mono_string_chars (src), size * 2);
1316 if (size <= mono_string_length (src))
1318 *((gunichar2 *) dst + len) = 0;
1322 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1325 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1326 mono_mb_emit_byte (mb, CEE_LDIND_I);
1327 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1328 mono_mb_emit_byte (mb, CEE_ADD);
1329 mono_mb_emit_byte (mb, CEE_LDIND_I);
1330 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1331 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1332 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1333 pos = mono_mb_emit_branch (mb, branch_code);
1338 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1341 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1342 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1343 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1344 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1345 mono_mb_emit_icon (mb, -1);
1346 pos = mono_mb_emit_branch (mb, branch_code);
1351 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1353 static int offset = -1;
1357 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1359 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1360 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1361 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1362 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1363 mono_mb_emit_ldflda (mb, offset);
1364 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1365 mono_mb_emit_icon (mb, mask);
1366 mono_mb_emit_byte (mb, CEE_AND);
1367 mono_mb_emit_icon (mb, 0);
1368 return mono_mb_emit_branch (mb, branch_code);
1372 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1374 // get function pointer from 1st arg, the COM interface pointer
1375 mono_mb_emit_ldarg (mb, 0);
1376 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1377 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1379 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1380 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1381 mono_mb_emit_calli (mb, sig);
1382 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1383 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1387 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1389 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1393 mono_type_to_ldind (MonoType *type)
1399 switch (type->type) {
1401 return CEE_LDIND_I1;
1403 case MONO_TYPE_BOOLEAN:
1404 return CEE_LDIND_U1;
1406 return CEE_LDIND_I2;
1408 case MONO_TYPE_CHAR:
1409 return CEE_LDIND_U2;
1411 return CEE_LDIND_I4;
1413 return CEE_LDIND_U4;
1417 case MONO_TYPE_FNPTR:
1419 case MONO_TYPE_CLASS:
1420 case MONO_TYPE_STRING:
1421 case MONO_TYPE_OBJECT:
1422 case MONO_TYPE_SZARRAY:
1423 case MONO_TYPE_ARRAY:
1424 return CEE_LDIND_REF;
1427 return CEE_LDIND_I8;
1429 return CEE_LDIND_R4;
1431 return CEE_LDIND_R8;
1432 case MONO_TYPE_VALUETYPE:
1433 if (type->data.klass->enumtype) {
1434 type = type->data.klass->enum_basetype;
1438 case MONO_TYPE_TYPEDBYREF:
1440 case MONO_TYPE_GENERICINST:
1441 type = &type->data.generic_class->container_class->byval_arg;
1444 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1450 mono_type_to_stind (MonoType *type)
1456 switch (type->type) {
1459 case MONO_TYPE_BOOLEAN:
1460 return CEE_STIND_I1;
1463 case MONO_TYPE_CHAR:
1464 return CEE_STIND_I2;
1467 return CEE_STIND_I4;
1471 case MONO_TYPE_FNPTR:
1473 case MONO_TYPE_CLASS:
1474 case MONO_TYPE_STRING:
1475 case MONO_TYPE_OBJECT:
1476 case MONO_TYPE_SZARRAY:
1477 case MONO_TYPE_ARRAY:
1478 return CEE_STIND_REF;
1481 return CEE_STIND_I8;
1483 return CEE_STIND_R4;
1485 return CEE_STIND_R8;
1486 case MONO_TYPE_VALUETYPE:
1487 if (type->data.klass->enumtype) {
1488 type = type->data.klass->enum_basetype;
1492 case MONO_TYPE_TYPEDBYREF:
1494 case MONO_TYPE_GENERICINST:
1495 type = &type->data.generic_class->container_class->byval_arg;
1498 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1504 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1507 case MONO_MARSHAL_CONV_BOOL_I4:
1508 mono_mb_emit_ldloc (mb, 1);
1509 mono_mb_emit_ldloc (mb, 0);
1510 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1511 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1512 mono_mb_emit_byte (mb, 3);
1513 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1514 mono_mb_emit_byte (mb, CEE_BR_S);
1515 mono_mb_emit_byte (mb, 1);
1516 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1517 mono_mb_emit_byte (mb, CEE_STIND_I1);
1519 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_ldloc (mb, 0);
1522 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1523 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1524 mono_mb_emit_byte (mb, 3);
1525 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1526 mono_mb_emit_byte (mb, CEE_BR_S);
1527 mono_mb_emit_byte (mb, 1);
1528 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1529 mono_mb_emit_byte (mb, CEE_STIND_I1);
1531 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1532 MonoClass *eklass = NULL;
1535 if (type->type == MONO_TYPE_SZARRAY) {
1536 eklass = type->data.klass;
1538 g_assert_not_reached ();
1541 esize = mono_class_native_size (eklass, NULL);
1543 /* create a new array */
1544 mono_mb_emit_ldloc (mb, 1);
1545 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1546 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1547 mono_mb_emit_byte (mb, CEE_STIND_I);
1549 if (eklass->blittable) {
1550 /* copy the elements */
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_byte (mb, CEE_LDIND_I);
1553 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1554 mono_mb_emit_byte (mb, CEE_ADD);
1555 mono_mb_emit_ldloc (mb, 0);
1556 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1557 mono_mb_emit_byte (mb, CEE_PREFIX1);
1558 mono_mb_emit_byte (mb, CEE_CPBLK);
1561 int array_var, src_var, dst_var, index_var;
1562 guint32 label2, label3;
1564 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1565 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1566 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1571 mono_mb_emit_stloc (mb, array_var);
1573 /* save the old src pointer */
1574 mono_mb_emit_ldloc (mb, 0);
1575 mono_mb_emit_stloc (mb, src_var);
1576 /* save the old dst pointer */
1577 mono_mb_emit_ldloc (mb, 1);
1578 mono_mb_emit_stloc (mb, dst_var);
1580 /* Emit marshalling loop */
1581 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1582 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1583 mono_mb_emit_stloc (mb, index_var);
1586 label2 = mono_mb_get_label (mb);
1587 mono_mb_emit_ldloc (mb, index_var);
1588 mono_mb_emit_ldloc (mb, array_var);
1589 mono_mb_emit_byte (mb, CEE_LDLEN);
1590 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1592 /* src is already set */
1595 mono_mb_emit_ldloc (mb, array_var);
1596 mono_mb_emit_ldloc (mb, index_var);
1597 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1598 mono_mb_emit_stloc (mb, 1);
1600 /* Do the conversion */
1601 emit_struct_conv (mb, eklass, TRUE);
1604 mono_mb_emit_add_to_local (mb, index_var, 1);
1606 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1608 mono_mb_patch_branch (mb, label3);
1610 /* restore the old src pointer */
1611 mono_mb_emit_ldloc (mb, src_var);
1612 mono_mb_emit_stloc (mb, 0);
1613 /* restore the old dst pointer */
1614 mono_mb_emit_ldloc (mb, dst_var);
1615 mono_mb_emit_stloc (mb, 1);
1619 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1620 MonoClass *eclass = mono_defaults.char_class;
1622 /* create a new array */
1623 mono_mb_emit_ldloc (mb, 1);
1624 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1625 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1626 mono_mb_emit_byte (mb, CEE_STIND_REF);
1628 mono_mb_emit_ldloc (mb, 1);
1629 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1630 mono_mb_emit_ldloc (mb, 0);
1631 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1632 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1633 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1636 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1637 mono_mb_emit_ldloc (mb, 1);
1638 mono_mb_emit_ldloc (mb, 0);
1639 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1640 mono_mb_emit_byte (mb, CEE_STIND_REF);
1642 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1643 mono_mb_emit_ldloc (mb, 1);
1644 mono_mb_emit_ldloc (mb, 0);
1645 mono_mb_emit_icall (mb, mono_string_from_utf16);
1646 mono_mb_emit_byte (mb, CEE_STIND_REF);
1648 case MONO_MARSHAL_CONV_STR_LPTSTR:
1649 mono_mb_emit_ldloc (mb, 1);
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_byte (mb, CEE_LDIND_I);
1652 #ifdef PLATFORM_WIN32
1653 mono_mb_emit_icall (mb, mono_string_from_utf16);
1655 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1657 mono_mb_emit_byte (mb, CEE_STIND_REF);
1659 case MONO_MARSHAL_CONV_STR_LPSTR:
1660 mono_mb_emit_ldloc (mb, 1);
1661 mono_mb_emit_ldloc (mb, 0);
1662 mono_mb_emit_byte (mb, CEE_LDIND_I);
1663 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1664 mono_mb_emit_byte (mb, CEE_STIND_REF);
1666 case MONO_MARSHAL_CONV_STR_LPWSTR:
1667 mono_mb_emit_ldloc (mb, 1);
1668 mono_mb_emit_ldloc (mb, 0);
1669 mono_mb_emit_byte (mb, CEE_LDIND_I);
1670 mono_mb_emit_icall (mb, mono_string_from_utf16);
1671 mono_mb_emit_byte (mb, CEE_STIND_REF);
1673 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1674 MonoClass *klass = mono_class_from_mono_type (type);
1675 int src_var, dst_var;
1677 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1678 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1680 /* *dst = new object */
1681 mono_mb_emit_ldloc (mb, 1);
1682 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1683 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1684 mono_mb_emit_byte (mb, CEE_STIND_REF);
1686 /* save the old src pointer */
1687 mono_mb_emit_ldloc (mb, 0);
1688 mono_mb_emit_stloc (mb, src_var);
1689 /* save the old dst pointer */
1690 mono_mb_emit_ldloc (mb, 1);
1691 mono_mb_emit_stloc (mb, dst_var);
1693 /* dst = pointer to newly created object data */
1694 mono_mb_emit_ldloc (mb, 1);
1695 mono_mb_emit_byte (mb, CEE_LDIND_I);
1696 mono_mb_emit_icon (mb, sizeof (MonoObject));
1697 mono_mb_emit_byte (mb, CEE_ADD);
1698 mono_mb_emit_stloc (mb, 1);
1700 emit_struct_conv (mb, klass, TRUE);
1702 /* restore the old src pointer */
1703 mono_mb_emit_ldloc (mb, src_var);
1704 mono_mb_emit_stloc (mb, 0);
1705 /* restore the old dst pointer */
1706 mono_mb_emit_ldloc (mb, dst_var);
1707 mono_mb_emit_stloc (mb, 1);
1710 case MONO_MARSHAL_CONV_DEL_FTN: {
1711 MonoClass *klass = mono_class_from_mono_type (type);
1713 mono_mb_emit_ldloc (mb, 1);
1714 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1715 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1716 mono_mb_emit_ldloc (mb, 0);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1719 mono_mb_emit_byte (mb, CEE_STIND_REF);
1722 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1723 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1725 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1726 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1727 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1728 static MonoClass* com_interop_proxy_class = NULL;
1729 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1730 static MonoMethod* get_transparent_proxy = NULL;
1732 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1733 MonoClass *klass = NULL;
1735 /* COM types are initialized lazily */
1736 mono_init_com_types ();
1738 klass = mono_class_from_mono_type (type);
1740 mono_mb_emit_ldloc (mb, 1);
1741 mono_mb_emit_byte (mb, CEE_LDNULL);
1742 mono_mb_emit_byte (mb, CEE_STIND_REF);
1744 mono_mb_emit_ldloc (mb, 0);
1745 mono_mb_emit_byte (mb, CEE_LDIND_I);
1746 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1748 /* load dst to store later */
1749 mono_mb_emit_ldloc (mb, 1);
1751 mono_mb_emit_ldloc (mb, 0);
1752 mono_mb_emit_byte (mb, CEE_LDIND_I);
1753 mono_mb_emit_icon (mb, TRUE);
1754 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1755 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1757 if (!com_interop_proxy_class)
1758 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1759 if (!com_interop_proxy_get_proxy)
1760 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1761 if (!get_transparent_proxy)
1762 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1764 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1766 mono_mb_emit_ldloc (mb, 0);
1767 mono_mb_emit_byte (mb, CEE_LDIND_I);
1768 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1769 mono_mb_emit_icall (mb, type_from_handle);
1770 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1771 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1772 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1774 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1776 mono_mb_emit_byte (mb, CEE_STIND_REF);
1777 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1779 /* is already managed object */
1780 mono_mb_patch_short_branch (mb, pos_ccw);
1781 mono_mb_emit_ldloc (mb, 0);
1782 mono_mb_emit_byte (mb, CEE_LDIND_I);
1783 mono_mb_emit_icon (mb, TRUE);
1784 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1786 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1788 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1790 mono_mb_emit_byte (mb, CEE_STIND_REF);
1792 mono_mb_patch_short_branch (mb, pos_end);
1794 mono_mb_patch_short_branch (mb, pos_null);
1798 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1800 * Passing SafeHandles as ref does not allow the unmanaged code
1801 * to change the SafeHandle value. If the value is changed,
1802 * we should issue a diagnostic exception (NotSupportedException)
1803 * that informs the user that changes to handles in unmanaged code
1806 * Since we currently have no access to the original
1807 * SafeHandle that was used during the marshalling,
1808 * for now we just ignore this, and ignore/discard any
1809 * changes that might have happened to the handle.
1814 case MONO_MARSHAL_CONV_HANDLEREF: {
1816 * Passing HandleRefs in a struct that is ref()ed does not
1817 * copy the values back to the HandleRef
1822 case MONO_MARSHAL_CONV_STR_BSTR:
1823 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1824 case MONO_MARSHAL_CONV_STR_TBSTR:
1825 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1827 g_warning ("marshaling conversion %d not implemented", conv);
1828 g_assert_not_reached ();
1833 conv_to_icall (MonoMarshalConv conv)
1836 case MONO_MARSHAL_CONV_STR_LPWSTR:
1837 return mono_marshal_string_to_utf16;
1838 case MONO_MARSHAL_CONV_LPWSTR_STR:
1839 return mono_string_from_utf16;
1840 case MONO_MARSHAL_CONV_LPSTR_STR:
1841 return mono_string_new_wrapper;
1842 case MONO_MARSHAL_CONV_STR_LPTSTR:
1843 #ifdef PLATFORM_WIN32
1844 return mono_marshal_string_to_utf16;
1846 return mono_string_to_lpstr;
1848 case MONO_MARSHAL_CONV_STR_LPSTR:
1849 return mono_string_to_lpstr;
1850 case MONO_MARSHAL_CONV_STR_BSTR:
1851 return mono_string_to_bstr;
1852 case MONO_MARSHAL_CONV_BSTR_STR:
1853 return mono_string_from_bstr;
1854 case MONO_MARSHAL_CONV_STR_TBSTR:
1855 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1856 return mono_string_to_ansibstr;
1857 case MONO_MARSHAL_CONV_SB_LPSTR:
1858 return mono_string_builder_to_utf8;
1859 case MONO_MARSHAL_CONV_SB_LPTSTR:
1860 #ifdef PLATFORM_WIN32
1861 return mono_string_builder_to_utf16;
1863 return mono_string_builder_to_utf8;
1865 case MONO_MARSHAL_CONV_SB_LPWSTR:
1866 return mono_string_builder_to_utf16;
1867 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1868 return mono_array_to_savearray;
1869 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1870 return mono_array_to_lparray;
1871 case MONO_MARSHAL_CONV_DEL_FTN:
1872 return mono_delegate_to_ftnptr;
1873 case MONO_MARSHAL_CONV_FTN_DEL:
1874 return mono_ftnptr_to_delegate;
1875 case MONO_MARSHAL_CONV_LPSTR_SB:
1876 return mono_string_utf8_to_builder;
1877 case MONO_MARSHAL_CONV_LPTSTR_SB:
1878 #ifdef PLATFORM_WIN32
1879 return mono_string_utf16_to_builder;
1881 return mono_string_utf8_to_builder;
1883 case MONO_MARSHAL_CONV_LPWSTR_SB:
1884 return mono_string_utf16_to_builder;
1885 case MONO_MARSHAL_FREE_ARRAY:
1886 return mono_marshal_free_array;
1887 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1888 return mono_string_to_byvalstr;
1889 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1890 return mono_string_to_byvalwstr;
1892 g_assert_not_reached ();
1899 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1904 case MONO_MARSHAL_CONV_BOOL_I4:
1905 mono_mb_emit_ldloc (mb, 1);
1906 mono_mb_emit_ldloc (mb, 0);
1907 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1908 mono_mb_emit_byte (mb, CEE_STIND_I4);
1910 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1911 mono_mb_emit_ldloc (mb, 1);
1912 mono_mb_emit_ldloc (mb, 0);
1913 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1914 mono_mb_emit_byte (mb, CEE_NEG);
1915 mono_mb_emit_byte (mb, CEE_STIND_I2);
1917 case MONO_MARSHAL_CONV_STR_LPWSTR:
1918 case MONO_MARSHAL_CONV_STR_LPSTR:
1919 case MONO_MARSHAL_CONV_STR_LPTSTR:
1920 case MONO_MARSHAL_CONV_STR_BSTR:
1921 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1922 case MONO_MARSHAL_CONV_STR_TBSTR: {
1925 /* free space if free == true */
1926 mono_mb_emit_ldloc (mb, 2);
1927 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1928 mono_mb_emit_ldloc (mb, 1);
1929 mono_mb_emit_byte (mb, CEE_LDIND_I);
1930 mono_mb_emit_icall (mb, g_free);
1931 mono_mb_patch_short_branch (mb, pos);
1933 mono_mb_emit_ldloc (mb, 1);
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1936 mono_mb_emit_icall (mb, conv_to_icall (conv));
1937 mono_mb_emit_byte (mb, CEE_STIND_I);
1940 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1941 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1942 case MONO_MARSHAL_CONV_DEL_FTN:
1943 mono_mb_emit_ldloc (mb, 1);
1944 mono_mb_emit_ldloc (mb, 0);
1945 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1946 mono_mb_emit_icall (mb, conv_to_icall (conv));
1947 mono_mb_emit_byte (mb, CEE_STIND_I);
1949 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1950 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1953 mono_mb_emit_ldloc (mb, 1); /* dst */
1954 mono_mb_emit_ldloc (mb, 0);
1955 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1956 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1957 mono_mb_emit_icall (mb, conv_to_icall (conv));
1960 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1961 MonoClass *eklass = NULL;
1964 if (type->type == MONO_TYPE_SZARRAY) {
1965 eklass = type->data.klass;
1967 g_assert_not_reached ();
1970 if (eklass->valuetype)
1971 esize = mono_class_native_size (eklass, NULL);
1973 esize = sizeof (gpointer);
1975 mono_mb_emit_ldloc (mb, 0);
1976 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1977 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1979 if (eklass->blittable) {
1980 mono_mb_emit_ldloc (mb, 1);
1981 mono_mb_emit_ldloc (mb, 0);
1982 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1983 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1984 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1985 mono_mb_emit_byte (mb, CEE_PREFIX1);
1986 mono_mb_emit_byte (mb, CEE_CPBLK);
1988 int array_var, src_var, dst_var, index_var;
1989 guint32 label2, label3;
1991 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1992 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1993 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1996 mono_mb_emit_ldloc (mb, 0);
1997 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1998 mono_mb_emit_stloc (mb, array_var);
2000 /* save the old src pointer */
2001 mono_mb_emit_ldloc (mb, 0);
2002 mono_mb_emit_stloc (mb, src_var);
2003 /* save the old dst pointer */
2004 mono_mb_emit_ldloc (mb, 1);
2005 mono_mb_emit_stloc (mb, dst_var);
2007 /* Emit marshalling loop */
2008 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2009 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2010 mono_mb_emit_stloc (mb, index_var);
2013 label2 = mono_mb_get_label (mb);
2014 mono_mb_emit_ldloc (mb, index_var);
2015 mono_mb_emit_ldloc (mb, array_var);
2016 mono_mb_emit_byte (mb, CEE_LDLEN);
2017 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2020 mono_mb_emit_ldloc (mb, array_var);
2021 mono_mb_emit_ldloc (mb, index_var);
2022 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2023 mono_mb_emit_stloc (mb, 0);
2025 /* dst is already set */
2027 /* Do the conversion */
2028 emit_struct_conv (mb, eklass, FALSE);
2031 mono_mb_emit_add_to_local (mb, index_var, 1);
2033 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2035 mono_mb_patch_branch (mb, label3);
2037 /* restore the old src pointer */
2038 mono_mb_emit_ldloc (mb, src_var);
2039 mono_mb_emit_stloc (mb, 0);
2040 /* restore the old dst pointer */
2041 mono_mb_emit_ldloc (mb, dst_var);
2042 mono_mb_emit_stloc (mb, 1);
2045 mono_mb_patch_branch (mb, pos);
2048 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2049 mono_mb_emit_ldloc (mb, 0);
2050 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2051 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2053 mono_mb_emit_ldloc (mb, 1);
2054 mono_mb_emit_ldloc (mb, 0);
2055 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2056 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
2057 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2058 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2059 mono_mb_patch_short_branch (mb, pos);
2062 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2063 int src_var, dst_var;
2065 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2066 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2068 mono_mb_emit_ldloc (mb, 0);
2069 mono_mb_emit_byte (mb, CEE_LDIND_I);
2070 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2072 /* save the old src pointer */
2073 mono_mb_emit_ldloc (mb, 0);
2074 mono_mb_emit_stloc (mb, src_var);
2075 /* save the old dst pointer */
2076 mono_mb_emit_ldloc (mb, 1);
2077 mono_mb_emit_stloc (mb, dst_var);
2079 /* src = pointer to object data */
2080 mono_mb_emit_ldloc (mb, 0);
2081 mono_mb_emit_byte (mb, CEE_LDIND_I);
2082 mono_mb_emit_icon (mb, sizeof (MonoObject));
2083 mono_mb_emit_byte (mb, CEE_ADD);
2084 mono_mb_emit_stloc (mb, 0);
2086 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2088 /* restore the old src pointer */
2089 mono_mb_emit_ldloc (mb, src_var);
2090 mono_mb_emit_stloc (mb, 0);
2091 /* restore the old dst pointer */
2092 mono_mb_emit_ldloc (mb, dst_var);
2093 mono_mb_emit_stloc (mb, 1);
2095 mono_mb_patch_branch (mb, pos);
2098 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2099 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2100 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2101 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2103 /* COM types are initialized lazily */
2104 mono_init_com_types ();
2107 mono_mb_emit_ldloc (mb, 1);
2108 mono_mb_emit_icon (mb, 0);
2109 mono_mb_emit_byte (mb, CEE_CONV_U);
2110 mono_mb_emit_byte (mb, CEE_STIND_I);
2112 mono_mb_emit_ldloc (mb, 0);
2113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2115 // if null just break, dst was already inited to 0
2116 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2118 mono_mb_emit_ldloc (mb, 0);
2119 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2120 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2121 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2123 // load dst to store later
2124 mono_mb_emit_ldloc (mb, 1);
2127 mono_mb_emit_ldloc (mb, 0);
2128 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2129 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2130 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2132 /* load the RCW from the ComInteropProxy*/
2133 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2134 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2136 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2137 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2138 mono_mb_emit_icon (mb, TRUE);
2139 mono_mb_emit_icall (mb, cominterop_get_interface);
2142 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2143 static MonoProperty* iunknown = NULL;
2146 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2147 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2149 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2150 static MonoProperty* idispatch = NULL;
2153 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2154 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2157 g_assert_not_reached ();
2159 mono_mb_emit_byte (mb, CEE_STIND_I);
2160 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2163 mono_mb_patch_short_branch (mb, pos_rcw);
2164 /* load dst to store later */
2165 mono_mb_emit_ldloc (mb, 1);
2167 mono_mb_emit_ldloc (mb, 0);
2168 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2170 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2171 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2172 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2173 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2174 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2175 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2177 g_assert_not_reached ();
2178 mono_mb_emit_icall (mb, cominterop_get_ccw);
2179 mono_mb_emit_byte (mb, CEE_STIND_I);
2181 mono_mb_patch_short_branch (mb, pos_end);
2182 mono_mb_patch_short_branch (mb, pos_null);
2186 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2187 int dar_release_slot, pos;
2189 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2192 * The following is ifdefed-out, because I have no way of doing the
2193 * DangerousRelease when destroying the structure
2196 /* set release = false */
2197 mono_mb_emit_icon (mb, 0);
2198 mono_mb_emit_stloc (mb, dar_release_slot);
2199 if (!sh_dangerous_add_ref)
2200 init_safe_handle ();
2202 /* safehandle.DangerousAddRef (ref release) */
2203 mono_mb_emit_ldloc (mb, 0); /* the source */
2204 mono_mb_emit_byte (mb, CEE_LDIND_I);
2205 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2206 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2208 mono_mb_emit_ldloc (mb, 0);
2209 mono_mb_emit_byte (mb, CEE_LDIND_I);
2210 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2211 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2212 mono_mb_patch_branch (mb, pos);
2214 /* Pull the handle field from SafeHandle */
2215 mono_mb_emit_ldloc (mb, 1);
2216 mono_mb_emit_ldloc (mb, 0);
2217 mono_mb_emit_byte (mb, CEE_LDIND_I);
2218 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2219 mono_mb_emit_byte (mb, CEE_LDIND_I);
2220 mono_mb_emit_byte (mb, CEE_STIND_I);
2224 case MONO_MARSHAL_CONV_HANDLEREF: {
2225 mono_mb_emit_ldloc (mb, 1);
2226 mono_mb_emit_ldloc (mb, 0);
2227 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2228 mono_mb_emit_byte (mb, CEE_ADD);
2229 mono_mb_emit_byte (mb, CEE_LDIND_I);
2230 mono_mb_emit_byte (mb, CEE_STIND_I);
2235 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2236 MonoException *exc = mono_get_exception_not_implemented (msg);
2239 mono_raise_exception (exc);
2245 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2247 MonoMarshalType *info;
2251 emit_struct_conv(mb, klass->parent, to_object);
2253 info = mono_marshal_load_type_info (klass);
2255 if (info->native_size == 0)
2258 if (klass->blittable) {
2259 int msize = mono_class_value_size (klass, NULL);
2260 g_assert (msize == info->native_size);
2261 mono_mb_emit_ldloc (mb, 1);
2262 mono_mb_emit_ldloc (mb, 0);
2263 mono_mb_emit_icon (mb, msize);
2264 mono_mb_emit_byte (mb, CEE_PREFIX1);
2265 mono_mb_emit_byte (mb, CEE_CPBLK);
2267 mono_mb_emit_add_to_local (mb, 0, msize);
2268 mono_mb_emit_add_to_local (mb, 1, msize);
2272 for (i = 0; i < info->num_fields; i++) {
2273 MonoMarshalNative ntype;
2274 MonoMarshalConv conv;
2275 MonoType *ftype = info->fields [i].field->type;
2278 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2280 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2283 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2286 msize = klass->instance_size - info->fields [i].field->offset;
2287 usize = info->native_size - info->fields [i].offset;
2289 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2290 usize = info->fields [i + 1].offset - info->fields [i].offset;
2293 if (klass != mono_defaults.safehandle_class){
2295 * FIXME: Should really check for usize==0 and msize>0, but we apply
2296 * the layout to the managed structure as well.
2299 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2300 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2301 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2302 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2303 "reference field at the same offset as another field.",
2304 mono_type_full_name (&klass->byval_arg));
2307 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2308 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2309 mono_type_full_name (&klass->byval_arg));
2314 case MONO_MARSHAL_CONV_NONE: {
2317 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2318 ftype->type == MONO_TYPE_U) {
2319 mono_mb_emit_ldloc (mb, 1);
2320 mono_mb_emit_ldloc (mb, 0);
2321 mono_mb_emit_byte (mb, CEE_LDIND_I);
2322 mono_mb_emit_byte (mb, CEE_STIND_I);
2333 case MONO_TYPE_BOOLEAN:
2336 case MONO_TYPE_CHAR:
2342 mono_mb_emit_ldloc (mb, 1);
2343 mono_mb_emit_ldloc (mb, 0);
2344 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2345 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2347 case MONO_TYPE_VALUETYPE: {
2348 int src_var, dst_var;
2350 if (ftype->data.klass->enumtype) {
2351 ftype = ftype->data.klass->enum_basetype;
2355 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2356 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2358 /* save the old src pointer */
2359 mono_mb_emit_ldloc (mb, 0);
2360 mono_mb_emit_stloc (mb, src_var);
2361 /* save the old dst pointer */
2362 mono_mb_emit_ldloc (mb, 1);
2363 mono_mb_emit_stloc (mb, dst_var);
2365 emit_struct_conv (mb, ftype->data.klass, to_object);
2367 /* restore the old src pointer */
2368 mono_mb_emit_ldloc (mb, src_var);
2369 mono_mb_emit_stloc (mb, 0);
2370 /* restore the old dst pointer */
2371 mono_mb_emit_ldloc (mb, dst_var);
2372 mono_mb_emit_stloc (mb, 1);
2375 case MONO_TYPE_OBJECT: {
2376 mono_init_com_types ();
2378 static MonoMethod *variant_clear = NULL;
2379 static MonoMethod *get_object_for_native_variant = NULL;
2382 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2383 if (!get_object_for_native_variant)
2384 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2385 mono_mb_emit_ldloc (mb, 1);
2386 mono_mb_emit_ldloc (mb, 0);
2387 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2388 mono_mb_emit_byte (mb, CEE_STIND_REF);
2390 mono_mb_emit_ldloc (mb, 0);
2391 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2394 static MonoMethod *get_native_variant_for_object = NULL;
2396 if (!get_native_variant_for_object)
2397 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2399 mono_mb_emit_ldloc (mb, 0);
2400 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2401 mono_mb_emit_ldloc (mb, 1);
2402 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2408 g_warning ("marshaling type %02x not implemented", ftype->type);
2409 g_assert_not_reached ();
2414 int src_var, dst_var;
2416 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2417 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2419 /* save the old src pointer */
2420 mono_mb_emit_ldloc (mb, 0);
2421 mono_mb_emit_stloc (mb, src_var);
2422 /* save the old dst pointer */
2423 mono_mb_emit_ldloc (mb, 1);
2424 mono_mb_emit_stloc (mb, dst_var);
2427 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2429 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2431 /* restore the old src pointer */
2432 mono_mb_emit_ldloc (mb, src_var);
2433 mono_mb_emit_stloc (mb, 0);
2434 /* restore the old dst pointer */
2435 mono_mb_emit_ldloc (mb, dst_var);
2436 mono_mb_emit_stloc (mb, 1);
2441 mono_mb_emit_add_to_local (mb, 0, usize);
2442 mono_mb_emit_add_to_local (mb, 1, msize);
2444 mono_mb_emit_add_to_local (mb, 0, msize);
2445 mono_mb_emit_add_to_local (mb, 1, usize);
2451 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2453 /* Call DestroyStructure */
2454 /* FIXME: Only do this if needed */
2455 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2456 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2457 mono_mb_emit_ldloc (mb, struct_var);
2458 mono_mb_emit_icall (mb, mono_struct_delete_old);
2462 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2466 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2467 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2468 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2470 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2471 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2473 mono_mb_emit_icall (mb, checkpoint_func);
2475 mono_mb_patch_branch (mb, pos_noabort);
2479 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2481 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2484 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2488 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2490 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2493 static MonoAsyncResult *
2494 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2496 MonoMethodMessage *msg;
2497 MonoDelegate *async_callback;
2501 MonoMethod *method = NULL, *method2 = NULL;
2503 g_assert (delegate);
2505 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2507 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2508 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2510 /* If the target is a proxy, make a direct call. Is proxy's work
2511 // to make the call asynchronous.
2513 MonoAsyncResult *ares;
2515 MonoArray *out_args;
2517 method = delegate->method;
2519 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2520 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2521 g_assert(handle != NULL);
2522 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2523 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2524 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2525 MONO_OBJECT_SETREF (msg, async_result, ares);
2526 msg->call_type = CallType_BeginInvoke;
2528 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2533 klass = delegate->object.vtable->klass;
2535 method = mono_get_delegate_invoke (klass);
2536 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2539 g_assert (method != NULL);
2541 im = mono_get_delegate_invoke (method->klass);
2542 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2544 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2548 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2550 int i, params_var, tmp_var;
2552 /* allocate local (pointer) *params[] */
2553 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2554 /* allocate local (pointer) tmp */
2555 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2557 /* alloate space on stack to store an array of pointers to the arguments */
2558 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2559 mono_mb_emit_byte (mb, CEE_PREFIX1);
2560 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2561 mono_mb_emit_stloc (mb, params_var);
2564 mono_mb_emit_ldloc (mb, params_var);
2565 mono_mb_emit_stloc (mb, tmp_var);
2567 if (save_this && sig->hasthis) {
2568 mono_mb_emit_ldloc (mb, tmp_var);
2569 mono_mb_emit_ldarg_addr (mb, 0);
2570 mono_mb_emit_byte (mb, CEE_STIND_I);
2571 /* tmp = tmp + sizeof (gpointer) */
2572 if (sig->param_count)
2573 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2577 for (i = 0; i < sig->param_count; i++) {
2578 mono_mb_emit_ldloc (mb, tmp_var);
2579 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2580 mono_mb_emit_byte (mb, CEE_STIND_I);
2581 /* tmp = tmp + sizeof (gpointer) */
2582 if (i < (sig->param_count - 1))
2583 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2590 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2594 GString *res = g_string_new ("");
2597 g_string_append (res, prefix);
2598 g_string_append_c (res, '_');
2601 mono_type_get_desc (res, sig->ret, FALSE);
2604 g_string_append (res, "__this__");
2606 for (i = 0; i < sig->param_count; ++i) {
2607 g_string_append_c (res, '_');
2608 mono_type_get_desc (res, sig->params [i], FALSE);
2611 g_string_free (res, FALSE);
2616 * mono_marshal_get_string_encoding:
2618 * Return the string encoding which should be used for a given parameter.
2620 static MonoMarshalNative
2621 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2623 /* First try the parameter marshal info */
2625 if (spec->native == MONO_NATIVE_LPARRAY) {
2626 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2627 return spec->data.array_data.elem_type;
2630 return spec->native;
2634 return MONO_NATIVE_LPSTR;
2636 /* Then try the method level marshal info */
2637 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2638 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2639 return MONO_NATIVE_LPSTR;
2640 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2641 return MONO_NATIVE_LPWSTR;
2642 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2643 #ifdef PLATFORM_WIN32
2644 return MONO_NATIVE_LPWSTR;
2646 return MONO_NATIVE_LPSTR;
2649 return MONO_NATIVE_LPSTR;
2653 static MonoMarshalConv
2654 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2656 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2659 case MONO_NATIVE_LPWSTR:
2660 return MONO_MARSHAL_CONV_STR_LPWSTR;
2661 case MONO_NATIVE_LPSTR:
2662 return MONO_MARSHAL_CONV_STR_LPSTR;
2663 case MONO_NATIVE_LPTSTR:
2664 return MONO_MARSHAL_CONV_STR_LPTSTR;
2665 case MONO_NATIVE_BSTR:
2666 return MONO_MARSHAL_CONV_STR_BSTR;
2672 static MonoMarshalConv
2673 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2675 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2678 case MONO_NATIVE_LPWSTR:
2679 return MONO_MARSHAL_CONV_SB_LPWSTR;
2681 case MONO_NATIVE_LPSTR:
2682 return MONO_MARSHAL_CONV_SB_LPSTR;
2684 case MONO_NATIVE_LPTSTR:
2685 return MONO_MARSHAL_CONV_SB_LPTSTR;
2692 static MonoMarshalConv
2693 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2695 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2700 case MONO_NATIVE_LPWSTR:
2702 return MONO_MARSHAL_CONV_LPWSTR_STR;
2703 case MONO_NATIVE_LPSTR:
2704 return MONO_MARSHAL_CONV_LPSTR_STR;
2705 case MONO_NATIVE_LPTSTR:
2706 return MONO_MARSHAL_CONV_LPTSTR_STR;
2707 case MONO_NATIVE_BSTR:
2708 return MONO_MARSHAL_CONV_BSTR_STR;
2714 static MonoMarshalConv
2715 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2717 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2722 case MONO_NATIVE_LPWSTR:
2724 * mono_string_builder_to_utf16 does not allocate a
2725 * new buffer, so no need to free it.
2728 return MONO_MARSHAL_CONV_LPWSTR_SB;
2729 case MONO_NATIVE_LPSTR:
2730 return MONO_MARSHAL_CONV_LPSTR_SB;
2732 case MONO_NATIVE_LPTSTR:
2733 return MONO_MARSHAL_CONV_LPTSTR_SB;
2741 * Return whenever a field of a native structure or an array member needs to
2745 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2747 MonoMarshalNative encoding;
2748 MonoMarshalConv conv;
2751 case MONO_TYPE_VALUETYPE:
2752 /* FIXME: Optimize this */
2754 case MONO_TYPE_OBJECT:
2755 case MONO_TYPE_CLASS:
2756 if (t->data.klass == mono_defaults.stringbuilder_class) {
2758 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2762 case MONO_TYPE_STRING:
2763 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2764 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2770 static inline MonoMethod*
2771 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2775 mono_marshal_lock ();
2776 res = g_hash_table_lookup (cache, key);
2777 mono_marshal_unlock ();
2781 /* Create the method from the builder and place it in the cache */
2782 static inline MonoMethod*
2783 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2784 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2789 mono_marshal_lock ();
2790 res = g_hash_table_lookup (cache, key);
2791 mono_marshal_unlock ();
2794 newm = mono_mb_create_method (mb, sig, max_stack);
2795 mono_marshal_lock ();
2796 res = g_hash_table_lookup (cache, key);
2799 g_hash_table_insert (cache, key, res);
2800 g_hash_table_insert (wrapper_hash, res, key);
2801 mono_marshal_unlock ();
2803 mono_marshal_unlock ();
2804 mono_free_method (newm);
2812 static inline MonoMethod*
2813 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2815 MonoMethod *res = NULL;
2816 MonoRemotingMethods *wrps;
2818 mono_marshal_lock ();
2819 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2822 switch (wrapper_type) {
2823 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2824 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2825 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2826 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2830 /* it is important to do the unlock after the load from wrps, since in
2831 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2832 * to take the loader lock and some other thread may set the fields.
2834 mono_marshal_unlock ();
2838 /* Create the method from the builder and place it in the cache */
2839 static inline MonoMethod*
2840 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2841 MonoMethodSignature *sig, int max_stack)
2843 MonoMethod **res = NULL;
2844 MonoRemotingMethods *wrps;
2845 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2847 mono_marshal_lock ();
2848 wrps = g_hash_table_lookup (cache, key);
2850 wrps = g_new0 (MonoRemotingMethods, 1);
2851 g_hash_table_insert (cache, key, wrps);
2854 switch (mb->method->wrapper_type) {
2855 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2856 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2857 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2858 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2859 default: g_assert_not_reached (); break;
2861 mono_marshal_unlock ();
2865 newm = mono_mb_create_method (mb, sig, max_stack);
2867 mono_marshal_lock ();
2870 g_hash_table_insert (wrapper_hash, *res, key);
2871 mono_marshal_unlock ();
2873 mono_marshal_unlock ();
2874 mono_free_method (newm);
2882 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2886 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2889 mono_marshal_lock ();
2890 res = g_hash_table_lookup (wrapper_hash, wrapper);
2891 mono_marshal_unlock ();
2896 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2898 MonoMethodSignature *sig;
2899 MonoMethodBuilder *mb;
2905 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2906 !strcmp (method->name, "BeginInvoke"));
2908 sig = signature_no_pinvoke (method);
2910 cache = method->klass->image->delegate_begin_invoke_cache;
2911 if ((res = mono_marshal_find_in_cache (cache, sig)))
2914 g_assert (sig->hasthis);
2916 name = mono_signature_to_name (sig, "begin_invoke");
2917 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2920 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2922 mono_mb_emit_ldarg (mb, 0);
2923 mono_mb_emit_ldloc (mb, params_var);
2924 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2925 mono_mb_emit_byte (mb, CEE_RET);
2927 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2933 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2935 MonoDomain *domain = mono_domain_get ();
2936 MonoAsyncResult *ares;
2937 MonoMethod *method = NULL;
2938 MonoMethodSignature *sig;
2939 MonoMethodMessage *msg;
2940 MonoObject *res, *exc;
2941 MonoArray *out_args;
2944 g_assert (delegate);
2946 if (!delegate->method_info) {
2947 g_assert (delegate->method);
2948 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2951 if (!delegate->method_info || !delegate->method_info->method)
2952 g_assert_not_reached ();
2954 klass = delegate->object.vtable->klass;
2956 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2957 g_assert (method != NULL);
2959 sig = signature_no_pinvoke (method);
2961 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2963 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2965 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2967 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
2968 mono_raise_exception (mono_get_exception_invalid_operation (
2969 "The IAsyncResult object provided does not match this delegate."));
2973 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2974 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2975 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2976 mono_message_init (domain, msg, delegate->method_info, NULL);
2977 msg->call_type = CallType_EndInvoke;
2978 MONO_OBJECT_SETREF (msg, async_result, ares);
2979 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2981 res = mono_thread_pool_finish (ares, &out_args, &exc);
2985 if (((MonoException*)exc)->stack_trace) {
2986 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2988 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2990 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2993 mono_raise_exception ((MonoException*)exc);
2996 mono_method_return_message_restore (method, params, out_args);
3001 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3003 MonoType *t = mono_type_get_underlying_type (return_type);
3005 if (return_type->byref)
3006 return_type = &mono_defaults.int_class->byval_arg;
3009 case MONO_TYPE_VOID:
3010 g_assert_not_reached ();
3013 case MONO_TYPE_STRING:
3014 case MONO_TYPE_CLASS:
3015 case MONO_TYPE_OBJECT:
3016 case MONO_TYPE_ARRAY:
3017 case MONO_TYPE_SZARRAY:
3021 case MONO_TYPE_BOOLEAN:
3024 case MONO_TYPE_CHAR:
3034 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3035 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3037 case MONO_TYPE_GENERICINST:
3038 if (!mono_type_generic_inst_is_valuetype (return_type))
3041 case MONO_TYPE_VALUETYPE: {
3042 MonoClass *klass = mono_class_from_mono_type (return_type);
3043 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3044 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3048 g_warning ("type 0x%x not handled", return_type->type);
3049 g_assert_not_reached ();
3052 mono_mb_emit_byte (mb, CEE_RET);
3056 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3058 MonoMethodSignature *sig;
3059 MonoMethodBuilder *mb;
3065 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3066 !strcmp (method->name, "EndInvoke"));
3068 sig = signature_no_pinvoke (method);
3070 cache = method->klass->image->delegate_end_invoke_cache;
3071 if ((res = mono_marshal_find_in_cache (cache, sig)))
3074 g_assert (sig->hasthis);
3076 name = mono_signature_to_name (sig, "end_invoke");
3077 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3080 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3082 mono_mb_emit_ldarg (mb, 0);
3083 mono_mb_emit_ldloc (mb, params_var);
3084 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3086 if (sig->ret->type == MONO_TYPE_VOID) {
3087 mono_mb_emit_byte (mb, CEE_POP);
3088 mono_mb_emit_byte (mb, CEE_RET);
3090 mono_mb_emit_restore_result (mb, sig->ret);
3092 res = mono_mb_create_and_cache (cache, sig,
3093 mb, sig, sig->param_count + 16);
3100 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3102 MonoMethodMessage *msg;
3103 MonoTransparentProxy *this;
3104 MonoObject *res, *exc;
3105 MonoArray *out_args;
3107 this = *((MonoTransparentProxy **)params [0]);
3110 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3112 /* skip the this pointer */
3115 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3118 MonoMethodSignature *sig = mono_method_signature (method);
3119 int count = sig->param_count;
3120 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3122 for (i=0; i<count; i++) {
3123 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3124 if (class->valuetype) {
3125 if (sig->params [i]->byref) {
3126 mparams[i] = *((gpointer *)params [i]);
3128 /* runtime_invoke expects a boxed instance */
3129 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
3130 mparams[i] = mono_nullable_box (params [i], class);
3132 mparams[i] = params [i];
3135 mparams[i] = *((gpointer**)params [i]);
3139 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3142 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3144 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3147 mono_raise_exception ((MonoException *)exc);
3149 mono_method_return_message_restore (method, params, out_args);
3155 * cominterop_get_native_wrapper_adjusted:
3156 * @method: managed COM Interop method
3158 * Returns: the generated method to call with signature matching
3159 * the unmanaged COM Method signature
3162 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3165 MonoMethodBuilder *mb_native;
3166 MonoMarshalSpec **mspecs;
3167 MonoMethodSignature *sig, *sig_native;
3168 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3171 sig = mono_method_signature (method);
3173 // create unmanaged wrapper
3174 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3175 sig_native = cominterop_method_signature (method);
3177 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3178 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3180 mono_method_get_marshal_info (method, mspecs);
3182 // move managed args up one
3183 for (i = sig->param_count; i >= 1; i--)
3184 mspecs[i+1] = mspecs[i];
3186 // first arg is IntPtr for interface
3189 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3190 // move return spec to last param
3191 if (!MONO_TYPE_IS_VOID (sig->ret))
3192 mspecs[sig_native->param_count] = mspecs[0];
3197 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, TRUE);
3199 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3201 mono_mb_free (mb_native);
3203 for (i = sig_native->param_count; i >= 0; i--)
3205 mono_metadata_free_marshal_spec (mspecs [i]);
3212 * cominterop_get_native_wrapper:
3213 * @method: managed method
3215 * Returns: the generated method to call
3218 cominterop_get_native_wrapper (MonoMethod *method)
3222 MonoMethodBuilder *mb;
3223 MonoMethodSignature *sig, *csig;
3227 cache = method->klass->image->cominterop_wrapper_cache;
3228 if ((res = mono_marshal_find_in_cache (cache, method)))
3231 mono_init_com_types ();
3233 if (!method->klass->methods)
3234 mono_class_setup_methods (method->klass);
3236 sig = mono_method_signature (method);
3237 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3239 /* if method klass is import, that means method
3240 * is really a com call. let interop system emit it.
3242 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3243 /* FIXME: we have to call actual class .ctor
3244 * instead of just __ComObject .ctor.
3246 if (!strcmp(method->name, ".ctor")) {
3247 static MonoMethod *ctor = NULL;
3250 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3251 mono_mb_emit_ldarg (mb, 0);
3252 mono_mb_emit_managed_call (mb, ctor, NULL);
3253 mono_mb_emit_byte (mb, CEE_RET);
3256 static MonoMethod * ThrowExceptionForHR = NULL;
3257 MonoMethod *adjusted_method;
3261 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3263 // add local variables
3264 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3265 if (!MONO_TYPE_IS_VOID (sig->ret))
3266 retval = mono_mb_add_local (mb, sig->ret);
3268 // get the type for the interface the method is defined on
3269 // and then get the underlying COM interface for that type
3270 mono_mb_emit_ldarg (mb, 0);
3271 mono_mb_emit_ptr (mb, method);
3272 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3273 mono_mb_emit_icon (mb, TRUE);
3274 mono_mb_emit_icall (mb, cominterop_get_interface);
3275 mono_mb_emit_stloc (mb, ptr_this);
3277 // arg 1 is unmanaged this pointer
3278 mono_mb_emit_ldloc (mb, ptr_this);
3281 for (i = 1; i <= sig->param_count; i++)
3282 mono_mb_emit_ldarg (mb, i);
3284 // push managed return value as byref last argument
3285 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3286 mono_mb_emit_ldloc_addr (mb, retval);
3288 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3289 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3291 if (!preserve_sig) {
3292 if (!ThrowExceptionForHR)
3293 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3294 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3296 // load return value managed is expecting
3297 if (!MONO_TYPE_IS_VOID (sig->ret))
3298 mono_mb_emit_ldloc (mb, retval);
3301 mono_mb_emit_byte (mb, CEE_RET);
3306 /* Does this case ever get hit? */
3308 char *msg = g_strdup ("non imported interfaces on \
3309 imported classes is not yet implemented.");
3310 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3312 csig = signature_dup (method->klass->image, sig);
3314 res = mono_mb_create_and_cache (cache, method,
3315 mb, csig, csig->param_count + 16);
3321 * cominterop_get_invoke:
3322 * @method: managed method
3324 * Returns: the generated method that calls the underlying __ComObject
3325 * rather than the proxy object.
3328 cominterop_get_invoke (MonoMethod *method)
3330 MonoMethodSignature *sig;
3331 MonoMethodBuilder *mb;
3334 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3338 if ((res = mono_marshal_find_in_cache (cache, method)))
3341 sig = signature_no_pinvoke (method);
3343 /* we cant remote methods without this pointer */
3347 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3349 /* get real proxy object, which is a ComInteropProxy in this case*/
3350 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3351 mono_mb_emit_ldarg (mb, 0);
3352 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3353 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3355 /* load the RCW from the ComInteropProxy*/
3356 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3357 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3359 /* load args and make the call on the RCW */
3360 for (i = 1; i <= sig->param_count; i++)
3361 mono_mb_emit_ldarg (mb, i);
3363 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3364 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3365 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3368 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3369 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3371 mono_mb_emit_op (mb, CEE_CALL, method);
3374 if (!strcmp(method->name, ".ctor")) {
3375 static MonoClass *com_interop_proxy_class = NULL;
3376 static MonoMethod *cache_proxy = NULL;
3378 if (!com_interop_proxy_class)
3379 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3381 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3383 mono_mb_emit_ldarg (mb, 0);
3384 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3385 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3386 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3389 emit_thread_interrupt_checkpoint (mb);
3391 mono_mb_emit_byte (mb, CEE_RET);
3393 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3398 /* Maps a managed object to its unmanaged representation
3399 * i.e. it's COM Callable Wrapper (CCW).
3403 static GHashTable* ccw_hash = NULL;
3405 /* Maps a CCW interface to it's containing CCW.
3406 * Note that a CCW support many interfaces.
3408 * Value: MonoCCWInterface*
3410 static GHashTable* ccw_interface_hash = NULL;
3412 /* Maps the IUnknown value of a RCW to
3413 * it's MonoComInteropProxy*.
3417 static GHashTable* rcw_hash = NULL;
3420 mono_marshal_get_remoting_invoke (MonoMethod *method)
3422 MonoMethodSignature *sig;
3423 MonoMethodBuilder *mb;
3429 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3432 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3433 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3434 return cominterop_get_invoke(method);
3436 sig = signature_no_pinvoke (method);
3438 /* we cant remote methods without this pointer */
3442 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3445 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3446 mb->method->save_lmf = 1;
3448 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3450 mono_mb_emit_ptr (mb, method);
3451 mono_mb_emit_ldloc (mb, params_var);
3452 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3453 emit_thread_interrupt_checkpoint (mb);
3455 if (sig->ret->type == MONO_TYPE_VOID) {
3456 mono_mb_emit_byte (mb, CEE_POP);
3457 mono_mb_emit_byte (mb, CEE_RET);
3459 mono_mb_emit_restore_result (mb, sig->ret);
3462 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3468 /* mono_get_xdomain_marshal_type()
3469 * Returns the kind of marshalling that a type needs for cross domain calls.
3471 static MonoXDomainMarshalType
3472 mono_get_xdomain_marshal_type (MonoType *t)
3475 case MONO_TYPE_VOID:
3476 g_assert_not_reached ();
3480 case MONO_TYPE_BOOLEAN:
3483 case MONO_TYPE_CHAR:
3490 return MONO_MARSHAL_NONE;
3491 case MONO_TYPE_STRING:
3492 return MONO_MARSHAL_COPY;
3493 case MONO_TYPE_ARRAY:
3494 case MONO_TYPE_SZARRAY: {
3495 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3496 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3497 return MONO_MARSHAL_COPY;
3502 return MONO_MARSHAL_SERIALIZE;
3506 /* mono_marshal_xdomain_copy_value
3507 * Makes a copy of "val" suitable for the current domain.
3510 mono_marshal_xdomain_copy_value (MonoObject *val)
3513 if (val == NULL) return NULL;
3515 domain = mono_domain_get ();
3517 switch (mono_object_class (val)->byval_arg.type) {
3518 case MONO_TYPE_VOID:
3519 g_assert_not_reached ();
3523 case MONO_TYPE_BOOLEAN:
3526 case MONO_TYPE_CHAR:
3532 case MONO_TYPE_R8: {
3533 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3535 case MONO_TYPE_STRING: {
3536 MonoString *str = (MonoString *) val;
3537 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3539 case MONO_TYPE_ARRAY:
3540 case MONO_TYPE_SZARRAY: {
3542 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3543 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3544 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3545 if (mt == MONO_MARSHAL_COPY) {
3546 int i, len = mono_array_length (acopy);
3547 for (i = 0; i < len; i++) {
3548 MonoObject *item = mono_array_get (acopy, gpointer, i);
3549 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3552 return (MonoObject *) acopy;
3556 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3557 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3558 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3559 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3560 newsb->length = oldsb->length;
3561 newsb->max_capacity = (gint32)0x7fffffff;
3562 return (MonoObject *) newsb;
3567 /* mono_marshal_xdomain_copy_out_value()
3568 * Copies the contents of the src instance into the dst instance. src and dst
3569 * must have the same type, and if they are arrays, the same size.
3572 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3574 if (src == NULL || dst == NULL) return;
3576 g_assert (mono_object_class (src) == mono_object_class (dst));
3578 switch (mono_object_class (src)->byval_arg.type) {
3579 case MONO_TYPE_ARRAY:
3580 case MONO_TYPE_SZARRAY: {
3581 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3582 if (mt == MONO_MARSHAL_SERIALIZE) return;
3583 if (mt == MONO_MARSHAL_COPY) {
3584 int i, len = mono_array_length ((MonoArray *)dst);
3585 for (i = 0; i < len; i++) {
3586 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3587 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3590 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3596 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3597 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3598 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3600 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)));
3601 dst_sb->cached_str = NULL;
3602 dst_sb->length = src_sb->length;
3607 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3609 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3610 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3614 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3616 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3619 /* mono_marshal_supports_fast_xdomain()
3620 * Returns TRUE if the method can use the fast xdomain wrapper.
3623 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3625 return !method->klass->contextbound &&
3626 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3630 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3632 MonoDomain *current_domain = mono_domain_get ();
3633 MonoDomain *domain = mono_domain_get_by_id (id);
3635 if (!domain || !mono_domain_set (domain, FALSE))
3636 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3639 mono_thread_push_appdomain_ref (domain);
3641 mono_thread_pop_appdomain_ref ();
3643 return current_domain->domain_id;
3647 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3649 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3652 /* mono_marshal_emit_load_domain_method ()
3653 * Loads into the stack a pointer to the code of the provided method for
3654 * the current domain.
3657 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3659 /* We need a pointer to the method for the running domain (not the domain
3660 * that compiles the method).
3662 mono_mb_emit_ptr (mb, method);
3663 mono_mb_emit_icall (mb, mono_compile_method);
3666 /* mono_marshal_check_domain_image ()
3667 * Returns TRUE if the image is loaded in the specified
3668 * application domain.
3671 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3676 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3680 mono_domain_assemblies_lock (domain);
3681 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3683 if (ass->image == image)
3686 mono_domain_assemblies_unlock (domain);
3691 /* mono_marshal_get_xappdomain_dispatch ()
3692 * Generates a method that dispatches a method call from another domain into
3693 * the current domain.
3696 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3698 MonoMethodSignature *sig, *csig;
3699 MonoMethodBuilder *mb;
3701 int i, j, param_index, copy_locals_base;
3702 MonoClass *ret_class = NULL;
3703 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3704 MonoExceptionClause *main_clause;
3705 MonoMethodHeader *header;
3707 gboolean copy_return;
3709 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3712 sig = mono_method_signature (method);
3713 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3716 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3717 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3718 csig->params [j++] = &byte_array_class->this_arg;
3719 csig->params [j++] = &byte_array_class->this_arg;
3720 for (i = 0; i < sig->param_count; i++) {
3721 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3722 csig->params [j++] = sig->params [i];
3725 csig->ret = sig->ret;
3727 csig->ret = &mono_defaults.void_class->byval_arg;
3729 csig->hasthis = FALSE;
3731 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3732 mb->method->save_lmf = 1;
3736 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3737 if (complex_count > 0)
3738 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3739 if (sig->ret->type != MONO_TYPE_VOID) {
3740 loc_return = mono_mb_add_local (mb, sig->ret);
3741 ret_class = mono_class_from_mono_type (sig->ret);
3746 mono_loader_lock ();
3747 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3748 mono_loader_unlock ();
3749 main_clause->try_offset = mono_mb_get_label (mb);
3751 /* Clean the call context */
3753 mono_mb_emit_byte (mb, CEE_LDNULL);
3754 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3755 mono_mb_emit_byte (mb, CEE_POP);
3757 /* Deserialize call data */
3759 mono_mb_emit_ldarg (mb, 1);
3760 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3761 mono_mb_emit_byte (mb, CEE_DUP);
3762 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3764 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3765 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3767 if (complex_count > 0)
3768 mono_mb_emit_stloc (mb, loc_array);
3770 mono_mb_emit_byte (mb, CEE_POP);
3772 mono_mb_patch_short_branch (mb, pos);
3774 /* Get the target object */
3776 mono_mb_emit_ldarg (mb, 0);
3777 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3779 /* Load the arguments */
3781 copy_locals_base = mb->locals;
3782 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3784 for (i = 0; i < sig->param_count; i++) {
3785 MonoType *pt = sig->params [i];
3786 MonoClass *pclass = mono_class_from_mono_type (pt);
3787 switch (marshal_types [i]) {
3788 case MONO_MARSHAL_SERIALIZE: {
3789 /* take the value from the serialized array */
3790 mono_mb_emit_ldloc (mb, loc_array);
3791 mono_mb_emit_icon (mb, j++);
3793 if (pclass->valuetype) {
3794 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3795 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3797 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3800 if (pclass->valuetype) {
3801 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3802 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3803 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3805 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3806 if (pclass != mono_defaults.object_class) {
3807 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3813 case MONO_MARSHAL_COPY_OUT: {
3814 /* Keep a local copy of the value since we need to copy it back after the call */
3815 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3816 mono_mb_emit_ldarg (mb, param_index++);
3817 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3818 mono_mb_emit_byte (mb, CEE_DUP);
3819 mono_mb_emit_stloc (mb, copy_local);
3822 case MONO_MARSHAL_COPY: {
3823 mono_mb_emit_ldarg (mb, param_index);
3825 mono_mb_emit_byte (mb, CEE_DUP);
3826 mono_mb_emit_byte (mb, CEE_DUP);
3827 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3828 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3829 mono_mb_emit_byte (mb, CEE_STIND_REF);
3831 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3836 case MONO_MARSHAL_NONE:
3837 mono_mb_emit_ldarg (mb, param_index++);
3842 /* Make the call to the real object */
3844 emit_thread_force_interrupt_checkpoint (mb);
3846 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3848 if (sig->ret->type != MONO_TYPE_VOID)
3849 mono_mb_emit_stloc (mb, loc_return);
3851 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3855 for (i = 0; i < sig->param_count; i++) {
3856 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3857 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3858 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3859 mono_mb_emit_ldarg (mb, param_index);
3860 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3865 /* Serialize the return values */
3867 if (complex_out_count > 0) {
3868 /* Reset parameters in the array that don't need to be serialized back */
3870 for (i = 0; i < sig->param_count; i++) {
3871 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3872 if (!sig->params [i]->byref) {
3873 mono_mb_emit_ldloc (mb, loc_array);
3874 mono_mb_emit_icon (mb, j);
3875 mono_mb_emit_byte (mb, CEE_LDNULL);
3876 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3881 /* Add the return value to the array */
3883 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3884 mono_mb_emit_ldloc (mb, loc_array);
3885 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3886 mono_mb_emit_ldloc (mb, loc_return);
3887 if (ret_class->valuetype) {
3888 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3890 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3895 mono_mb_emit_ldarg (mb, 1);
3896 mono_mb_emit_ldloc (mb, loc_array);
3897 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3898 mono_mb_emit_byte (mb, CEE_STIND_REF);
3899 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3900 mono_mb_emit_ldarg (mb, 1);
3901 mono_mb_emit_ldloc (mb, loc_return);
3902 if (ret_class->valuetype) {
3903 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3905 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3906 mono_mb_emit_byte (mb, CEE_STIND_REF);
3908 mono_mb_emit_ldarg (mb, 1);
3909 mono_mb_emit_byte (mb, CEE_LDNULL);
3910 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3911 mono_mb_emit_byte (mb, CEE_STIND_REF);
3914 mono_mb_emit_ldarg (mb, 2);
3915 mono_mb_emit_byte (mb, CEE_LDNULL);
3916 mono_mb_emit_byte (mb, CEE_STIND_REF);
3917 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3919 /* Main exception catch */
3920 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3921 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3922 main_clause->data.catch_class = mono_defaults.object_class;
3925 main_clause->handler_offset = mono_mb_get_label (mb);
3926 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3927 mono_mb_emit_stloc (mb, loc_serialized_exc);
3928 mono_mb_emit_ldarg (mb, 2);
3929 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3930 mono_mb_emit_byte (mb, CEE_STIND_REF);
3931 mono_mb_emit_branch (mb, CEE_LEAVE);
3932 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3935 mono_mb_patch_branch (mb, pos_leave);
3938 mono_mb_emit_ldloc (mb, loc_return);
3940 mono_mb_emit_byte (mb, CEE_RET);
3942 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3945 header = ((MonoMethodNormal *)res)->header;
3946 header->num_clauses = 1;
3947 header->clauses = main_clause;
3952 /* mono_marshal_get_xappdomain_invoke ()
3953 * Generates a fast remoting wrapper for cross app domain calls.
3956 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3958 MonoMethodSignature *sig;
3959 MonoMethodBuilder *mb;
3961 int i, j, complex_count, complex_out_count, copy_locals_base;
3963 MonoClass *ret_class = NULL;
3964 MonoMethod *xdomain_method;
3965 int ret_marshal_type = MONO_MARSHAL_NONE;
3966 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3967 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3968 int pos, pos_dispatch, pos_noex;
3969 gboolean copy_return = FALSE;
3973 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3976 /* we cant remote methods without this pointer */
3977 if (!mono_method_signature (method)->hasthis)
3980 if (!mono_marshal_supports_fast_xdomain (method))
3981 return mono_marshal_get_remoting_invoke (method);
3983 mono_remoting_marshal_init ();
3985 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3988 sig = signature_no_pinvoke (method);
3990 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3991 mb->method->save_lmf = 1;
3993 /* Count the number of parameters that need to be serialized */
3995 marshal_types = alloca (sizeof (int) * sig->param_count);
3996 complex_count = complex_out_count = 0;
3997 for (i = 0; i < sig->param_count; i++) {
3998 MonoType *ptype = sig->params[i];
3999 int mt = mono_get_xdomain_marshal_type (ptype);
4001 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4002 * the copy will be made by reusing the original object instance
4004 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4005 mt = MONO_MARSHAL_COPY_OUT;
4006 else if (mt == MONO_MARSHAL_SERIALIZE) {
4008 if (ptype->byref) complex_out_count++;
4010 marshal_types [i] = mt;
4013 if (sig->ret->type != MONO_TYPE_VOID) {
4014 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4015 ret_class = mono_class_from_mono_type (sig->ret);
4016 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4021 if (complex_count > 0)
4022 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4023 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4024 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4026 loc_return = mono_mb_add_local (mb, sig->ret);
4027 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4028 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4029 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4030 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4032 /* Save thread domain data */
4034 mono_mb_emit_icall (mb, mono_context_get);
4035 mono_mb_emit_byte (mb, CEE_DUP);
4036 mono_mb_emit_stloc (mb, loc_context);
4038 /* If the thread is not running in the default context, it needs to go
4039 * through the whole remoting sink, since the context is going to change
4041 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4042 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4044 /* Another case in which the fast path can't be used: when the target domain
4045 * has a different image for the same assembly.
4048 /* Get the target domain id */
4050 mono_mb_emit_ldarg (mb, 0);
4051 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4052 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4053 mono_mb_emit_byte (mb, CEE_DUP);
4054 mono_mb_emit_stloc (mb, loc_real_proxy);
4056 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4057 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4058 mono_mb_emit_stloc (mb, loc_domainid);
4060 /* Check if the target domain has the same image for the required assembly */
4062 mono_mb_emit_ldloc (mb, loc_domainid);
4063 mono_mb_emit_ptr (mb, method->klass->image);
4064 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4065 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4067 /* Use the whole remoting sink to dispatch this message */
4069 mono_mb_patch_short_branch (mb, pos);
4071 mono_mb_emit_ldarg (mb, 0);
4072 for (i = 0; i < sig->param_count; i++)
4073 mono_mb_emit_ldarg (mb, i + 1);
4075 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4076 mono_mb_emit_byte (mb, CEE_RET);
4077 mono_mb_patch_short_branch (mb, pos_dispatch);
4079 /* Create the array that will hold the parameters to be serialized */
4081 if (complex_count > 0) {
4082 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 */
4083 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4086 for (i = 0; i < sig->param_count; i++) {
4088 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4089 pclass = mono_class_from_mono_type (sig->params[i]);
4090 mono_mb_emit_byte (mb, CEE_DUP);
4091 mono_mb_emit_icon (mb, j);
4092 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4093 if (sig->params[i]->byref) {
4094 if (pclass->valuetype)
4095 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4097 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4099 if (pclass->valuetype)
4100 mono_mb_emit_op (mb, CEE_BOX, pclass);
4101 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4104 mono_mb_emit_stloc (mb, loc_array);
4106 /* Serialize parameters */
4108 mono_mb_emit_ldloc (mb, loc_array);
4109 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4110 mono_mb_emit_stloc (mb, loc_serialized_data);
4112 mono_mb_emit_byte (mb, CEE_LDNULL);
4113 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4114 mono_mb_emit_stloc (mb, loc_serialized_data);
4119 mono_mb_emit_ldloc (mb, loc_domainid);
4120 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4121 mono_marshal_emit_switch_domain (mb);
4122 mono_mb_emit_stloc (mb, loc_old_domainid);
4124 /* Load the arguments */
4126 mono_mb_emit_ldloc (mb, loc_real_proxy);
4127 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4128 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4130 copy_locals_base = mb->locals;
4131 for (i = 0; i < sig->param_count; i++) {
4132 switch (marshal_types [i]) {
4133 case MONO_MARSHAL_SERIALIZE:
4135 case MONO_MARSHAL_COPY: {
4136 mono_mb_emit_ldarg (mb, i+1);
4137 if (sig->params [i]->byref) {
4138 /* make a local copy of the byref parameter. The real parameter
4139 * will be updated after the xdomain call
4141 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4142 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4143 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4144 mono_mb_emit_stloc (mb, copy_local);
4145 mono_mb_emit_ldloc_addr (mb, copy_local);
4149 case MONO_MARSHAL_COPY_OUT:
4150 case MONO_MARSHAL_NONE:
4151 mono_mb_emit_ldarg (mb, i+1);
4156 /* Make the call to the invoke wrapper in the target domain */
4158 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4159 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4160 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4163 mono_mb_emit_stloc (mb, loc_return);
4167 mono_mb_emit_ldloc (mb, loc_old_domainid);
4168 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4169 mono_marshal_emit_switch_domain (mb);
4170 mono_mb_emit_byte (mb, CEE_POP);
4172 /* Restore thread domain data */
4174 mono_mb_emit_ldloc (mb, loc_context);
4175 mono_mb_emit_icall (mb, mono_context_set);
4177 /* if (loc_serialized_exc != null) ... */
4179 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4180 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4182 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4183 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4184 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4185 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4186 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4187 mono_mb_emit_byte (mb, CEE_THROW);
4188 mono_mb_patch_short_branch (mb, pos_noex);
4190 /* copy back non-serialized output parameters */
4193 for (i = 0; i < sig->param_count; i++) {
4194 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4195 mono_mb_emit_ldarg (mb, i + 1);
4196 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4197 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4198 mono_mb_emit_byte (mb, CEE_STIND_REF);
4201 /* Deserialize out parameters */
4203 if (complex_out_count > 0) {
4204 mono_mb_emit_ldloc (mb, loc_serialized_data);
4205 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4206 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4207 mono_mb_emit_stloc (mb, loc_array);
4209 /* Copy back output parameters and return type */
4212 for (i = 0; i < sig->param_count; i++) {
4213 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4214 if (sig->params[i]->byref) {
4215 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4216 mono_mb_emit_ldarg (mb, i + 1);
4217 mono_mb_emit_ldloc (mb, loc_array);
4218 mono_mb_emit_icon (mb, j);
4219 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4220 if (pclass->valuetype) {
4221 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4222 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4223 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4225 if (pclass != mono_defaults.object_class)
4226 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4227 mono_mb_emit_byte (mb, CEE_STIND_REF);
4233 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4234 mono_mb_emit_ldloc (mb, loc_array);
4235 mono_mb_emit_icon (mb, complex_count);
4236 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4237 if (ret_class->valuetype) {
4238 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4239 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4242 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4243 mono_mb_emit_ldloc (mb, loc_serialized_data);
4244 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4245 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4246 if (ret_class->valuetype) {
4247 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4248 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4249 } else if (ret_class != mono_defaults.object_class) {
4250 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4253 mono_mb_emit_ldloc (mb, loc_serialized_data);
4254 mono_mb_emit_byte (mb, CEE_DUP);
4255 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4256 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4258 mono_mb_patch_short_branch (mb, pos);
4259 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4260 mono_mb_emit_byte (mb, CEE_POP);
4264 mono_mb_emit_ldloc (mb, loc_return);
4265 if (ret_marshal_type == MONO_MARSHAL_COPY)
4266 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4269 mono_mb_emit_byte (mb, CEE_RET);
4271 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4278 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4280 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4281 return mono_marshal_get_xappdomain_invoke (method);
4282 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4283 return cominterop_get_invoke (method);
4285 return mono_marshal_get_remoting_invoke (method);
4288 G_GNUC_UNUSED static gpointer
4289 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4291 if (rp->target_domain_id != -1)
4292 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4294 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4298 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4300 MonoMethodSignature *sig;
4301 MonoMethodBuilder *mb;
4302 MonoMethod *res, *native;
4303 int i, pos, pos_rem;
4307 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4310 /* we cant remote methods without this pointer */
4311 g_assert (mono_method_signature (method)->hasthis);
4313 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4316 sig = signature_no_pinvoke (method);
4318 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4320 for (i = 0; i <= sig->param_count; i++)
4321 mono_mb_emit_ldarg (mb, i);
4323 mono_mb_emit_ldarg (mb, 0);
4324 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4326 if (mono_marshal_supports_fast_xdomain (method)) {
4327 mono_mb_emit_ldarg (mb, 0);
4328 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4330 /* wrapper for cross app domain calls */
4331 native = mono_marshal_get_xappdomain_invoke (method);
4332 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4333 mono_mb_emit_byte (mb, CEE_RET);
4335 mono_mb_patch_branch (mb, pos_rem);
4337 /* wrapper for normal remote calls */
4338 native = mono_marshal_get_remoting_invoke (method);
4339 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4340 mono_mb_emit_byte (mb, CEE_RET);
4343 mono_mb_patch_branch (mb, pos);
4344 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4345 mono_mb_emit_byte (mb, CEE_RET);
4347 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4355 MonoMethodSignature *sig;
4357 } SignatureMethodPair;
4360 signature_method_pair_hash (gconstpointer data)
4362 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4364 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4368 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4370 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4374 free_signature_method_pair (SignatureMethodPair *pair)
4380 * the returned method invokes all methods in a multicast delegate.
4383 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4385 MonoMethodSignature *sig, *static_sig;
4387 MonoMethodBuilder *mb;
4388 MonoMethod *res, *newm;
4390 SignatureMethodPair key;
4391 SignatureMethodPair *new_key;
4392 int local_prev, local_target;
4395 MonoMethod *target_method = NULL;
4396 MonoClass *target_class = NULL;
4397 gboolean callvirt = FALSE;
4400 * If the delegate target is null, and the target method is not static, a virtual
4401 * call is made to that method with the first delegate argument as this. This is
4402 * a non-documented .NET feature.
4404 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4406 target_method = del->method;
4407 if (target_method->is_inflated) {
4408 MonoType *target_type;
4410 g_assert (method->signature->hasthis);
4411 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4412 mono_method_get_context (method));
4413 target_class = mono_class_from_mono_type (target_type);
4415 target_class = del->method->klass;
4419 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4420 !strcmp (method->name, "Invoke"));
4422 sig = signature_no_pinvoke (method);
4425 /* We need to cache the signature+method pair */
4426 mono_marshal_lock ();
4427 if (!method->klass->image->delegate_abstract_invoke_cache)
4428 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);
4429 cache = method->klass->image->delegate_abstract_invoke_cache;
4431 key.method = target_method;
4432 res = g_hash_table_lookup (cache, &key);
4433 mono_marshal_unlock ();
4437 cache = method->klass->image->delegate_invoke_cache;
4438 if ((res = mono_marshal_find_in_cache (cache, sig)))
4442 static_sig = signature_dup (method->klass->image, sig);
4443 static_sig->hasthis = 0;
4445 name = mono_signature_to_name (sig, "invoke");
4446 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4449 /* allocate local 0 (object) */
4450 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4451 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4453 g_assert (sig->hasthis);
4457 * prev.Invoke( args .. );
4458 * return this.<target>( args .. );
4461 /* this wrapper can be used in unmanaged-managed transitions */
4462 emit_thread_interrupt_checkpoint (mb);
4464 /* get this->prev */
4465 mono_mb_emit_ldarg (mb, 0);
4466 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4467 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4468 mono_mb_emit_stloc (mb, local_prev);
4469 mono_mb_emit_ldloc (mb, local_prev);
4471 /* if prev != null */
4472 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4476 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4477 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4479 mono_mb_emit_ldloc (mb, local_prev);
4480 for (i = 0; i < sig->param_count; i++)
4481 mono_mb_emit_ldarg (mb, i + 1);
4482 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4483 if (sig->ret->type != MONO_TYPE_VOID)
4484 mono_mb_emit_byte (mb, CEE_POP);
4486 /* continued or prev == null */
4487 mono_mb_patch_branch (mb, pos0);
4489 /* get this->target */
4490 mono_mb_emit_ldarg (mb, 0);
4491 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4492 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4493 mono_mb_emit_stloc (mb, local_target);
4495 /* if target != null */
4496 mono_mb_emit_ldloc (mb, local_target);
4497 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4499 /* then call this->method_ptr nonstatic */
4502 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4504 mono_mb_emit_ldloc (mb, local_target);
4505 for (i = 0; i < sig->param_count; ++i)
4506 mono_mb_emit_ldarg (mb, i + 1);
4507 mono_mb_emit_ldarg (mb, 0);
4508 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4509 mono_mb_emit_byte (mb, CEE_LDIND_I );
4510 mono_mb_emit_op (mb, CEE_CALLI, sig);
4512 mono_mb_emit_byte (mb, CEE_RET);
4515 /* else [target == null] call this->method_ptr static */
4516 mono_mb_patch_branch (mb, pos0);
4519 mono_mb_emit_ldarg (mb, 1);
4520 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4521 for (i = 1; i < sig->param_count; ++i)
4522 mono_mb_emit_ldarg (mb, i + 1);
4523 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4525 for (i = 0; i < sig->param_count; ++i)
4526 mono_mb_emit_ldarg (mb, i + 1);
4527 mono_mb_emit_ldarg (mb, 0);
4528 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4529 mono_mb_emit_byte (mb, CEE_LDIND_I );
4530 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4533 mono_mb_emit_byte (mb, CEE_RET);
4536 // From mono_mb_create_and_cache
4537 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4538 newm->skip_visibility = 1;
4539 /*We perform double checked locking, so must fence before publishing*/
4540 mono_memory_barrier ();
4541 mono_marshal_lock ();
4542 res = g_hash_table_lookup (cache, &key);
4545 new_key = g_new0 (SignatureMethodPair, 1);
4547 new_key->method = target_method;
4548 g_hash_table_insert (cache, new_key, res);
4549 g_hash_table_insert (wrapper_hash, res, new_key);
4550 mono_marshal_unlock ();
4552 mono_marshal_unlock ();
4553 mono_free_method (newm);
4556 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4557 res->skip_visibility = 1;
4565 * signature_dup_add_this:
4567 * Make a copy of @sig, adding an explicit this argument.
4569 static MonoMethodSignature*
4570 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4572 MonoMethodSignature *res;
4575 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4576 memcpy (res, sig, sizeof (MonoMethodSignature));
4577 res->param_count = sig->param_count + 1;
4578 res->hasthis = FALSE;
4579 for (i = sig->param_count - 1; i >= 0; i --)
4580 res->params [i + 1] = sig->params [i];
4581 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4587 MonoMethodSignature *ctor_sig;
4588 MonoMethodSignature *sig;
4591 /* protected by the marshal lock, contains CtorSigPair pointers */
4592 static GSList *strsig_list = NULL;
4594 static MonoMethodSignature *
4595 lookup_string_ctor_signature (MonoMethodSignature *sig)
4597 MonoMethodSignature *callsig;
4601 mono_marshal_lock ();
4603 for (item = strsig_list; item; item = item->next) {
4605 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4606 * because it is lock-free.
4608 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4613 mono_marshal_unlock ();
4617 static MonoMethodSignature *
4618 add_string_ctor_signature (MonoMethod *method)
4620 MonoMethodSignature *callsig;
4623 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4624 callsig->ret = &mono_defaults.string_class->byval_arg;
4625 cs = g_new (CtorSigPair, 1);
4627 cs->ctor_sig = mono_method_signature (method);
4629 mono_marshal_lock ();
4630 strsig_list = g_slist_prepend (strsig_list, cs);
4631 mono_marshal_unlock ();
4636 * generates IL code for the runtime invoke function
4637 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4639 * we also catch exceptions if exc != null
4642 mono_marshal_get_runtime_invoke (MonoMethod *method)
4644 MonoMethodSignature *sig, *csig, *callsig;
4645 MonoExceptionClause *clause;
4646 MonoMethodHeader *header;
4647 MonoMethodBuilder *mb;
4648 GHashTable *cache = NULL;
4649 MonoClass *target_klass;
4650 MonoMethod *res = NULL;
4651 static MonoString *string_dummy = NULL;
4652 static MonoMethodSignature *cctor_signature = NULL;
4653 static MonoMethodSignature *finalize_signature = NULL;
4656 gboolean need_direct_wrapper = FALSE;
4660 if (!cctor_signature) {
4661 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4662 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4664 if (!finalize_signature) {
4665 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4666 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4667 finalize_signature->hasthis = 1;
4670 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4671 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4673 * Array Get/Set/Address methods. The JIT implements them using inline code
4674 * so we need to create an invoke wrapper which calls the method directly.
4676 need_direct_wrapper = TRUE;
4679 if (method->string_ctor) {
4680 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4682 callsig = add_string_ctor_signature (method);
4684 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4686 * Valuetype methods receive a managed pointer as the this argument.
4687 * Create a new signature to reflect this.
4689 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4691 if (method->dynamic)
4692 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4694 callsig = mono_method_signature (method);
4699 * We try to share runtime invoke wrappers between different methods but have to
4700 * be careful about methods whose klass has a type cctor, since putting the wrapper
4701 * into that klass would mean that calling a method of klass A might invoke the
4702 * type initializer of class B, or throw an exception if the type initializer
4703 * was called before and failed. See #349621 for an example.
4704 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4706 if (method->klass->image == mono_defaults.corlib)
4707 target_klass = mono_defaults.object_class;
4709 /* Try to share wrappers for non-corlib methods with simple signatures */
4710 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4711 callsig = cctor_signature;
4712 target_klass = mono_defaults.object_class;
4713 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4714 callsig = finalize_signature;
4715 target_klass = mono_defaults.object_class;
4717 // FIXME: This breaks too many things
4719 if (mono_class_get_cctor (method->klass))
4720 need_direct_wrapper = TRUE;
4724 * Can't put these wrappers into object, since they reference non-corlib
4725 * metadata (callsig).
4727 target_klass = method->klass;
4731 if (need_direct_wrapper) {
4732 cache = target_klass->image->runtime_invoke_direct_cache;
4733 res = mono_marshal_find_in_cache (cache, method);
4735 cache = target_klass->image->runtime_invoke_cache;
4737 /* from mono_marshal_find_in_cache */
4738 mono_marshal_lock ();
4739 res = g_hash_table_lookup (cache, callsig);
4740 mono_marshal_unlock ();
4747 /* to make it work with our special string constructors */
4748 if (!string_dummy) {
4749 MONO_GC_REGISTER_ROOT (string_dummy);
4750 string_dummy = mono_string_new_wrapper ("dummy");
4753 sig = mono_method_signature (method);
4755 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4757 csig->ret = &mono_defaults.object_class->byval_arg;
4758 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4759 csig->params [0] = callsig->params [0];
4761 csig->params [0] = &mono_defaults.object_class->byval_arg;
4762 csig->params [1] = &mono_defaults.int_class->byval_arg;
4763 csig->params [2] = &mono_defaults.int_class->byval_arg;
4764 csig->params [3] = &mono_defaults.int_class->byval_arg;
4766 name = mono_signature_to_name (callsig, "runtime_invoke");
4767 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4770 /* allocate local 0 (object) tmp */
4771 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4772 /* allocate local 1 (object) exc */
4773 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4775 /* cond set *exc to null */
4776 mono_mb_emit_byte (mb, CEE_LDARG_2);
4777 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4778 mono_mb_emit_byte (mb, 3);
4779 mono_mb_emit_byte (mb, CEE_LDARG_2);
4780 mono_mb_emit_byte (mb, CEE_LDNULL);
4781 mono_mb_emit_byte (mb, CEE_STIND_REF);
4783 emit_thread_force_interrupt_checkpoint (mb);
4786 if (method->string_ctor) {
4787 mono_mb_emit_ptr (mb, string_dummy);
4789 mono_mb_emit_ldarg (mb, 0);
4793 for (i = 0; i < sig->param_count; i++) {
4794 MonoType *t = sig->params [i];
4797 mono_mb_emit_ldarg (mb, 1);
4799 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4800 mono_mb_emit_byte (mb, CEE_ADD);
4804 mono_mb_emit_byte (mb, CEE_LDIND_I);
4808 type = sig->params [i]->type;
4812 case MONO_TYPE_BOOLEAN:
4816 case MONO_TYPE_CHAR:
4825 mono_mb_emit_byte (mb, CEE_LDIND_I);
4826 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4828 case MONO_TYPE_STRING:
4829 case MONO_TYPE_CLASS:
4830 case MONO_TYPE_ARRAY:
4832 case MONO_TYPE_SZARRAY:
4833 case MONO_TYPE_OBJECT:
4834 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4836 case MONO_TYPE_GENERICINST:
4837 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4838 mono_mb_emit_byte (mb, CEE_LDIND_I);
4843 case MONO_TYPE_VALUETYPE:
4844 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4845 type = t->data.klass->enum_basetype->type;
4848 mono_mb_emit_byte (mb, CEE_LDIND_I);
4849 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4850 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4851 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4852 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4854 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4858 g_assert_not_reached ();
4862 if (need_direct_wrapper) {
4863 mono_mb_emit_op (mb, CEE_CALL, method);
4865 mono_mb_emit_ldarg (mb, 3);
4866 mono_mb_emit_calli (mb, callsig);
4869 if (sig->ret->byref) {
4871 g_assert_not_reached ();
4875 switch (sig->ret->type) {
4876 case MONO_TYPE_VOID:
4877 if (!method->string_ctor)
4878 mono_mb_emit_byte (mb, CEE_LDNULL);
4880 case MONO_TYPE_BOOLEAN:
4881 case MONO_TYPE_CHAR:
4894 case MONO_TYPE_VALUETYPE:
4895 case MONO_TYPE_TYPEDBYREF:
4896 case MONO_TYPE_GENERICINST:
4897 /* box value types */
4898 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4900 case MONO_TYPE_STRING:
4901 case MONO_TYPE_CLASS:
4902 case MONO_TYPE_ARRAY:
4903 case MONO_TYPE_SZARRAY:
4904 case MONO_TYPE_OBJECT:
4909 g_assert_not_reached ();
4912 mono_mb_emit_stloc (mb, 0);
4914 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4916 mono_loader_lock ();
4917 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4918 mono_loader_unlock ();
4919 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4920 clause->try_len = mono_mb_get_label (mb);
4923 clause->data.filter_offset = mono_mb_get_label (mb);
4925 mono_mb_emit_byte (mb, CEE_POP);
4926 mono_mb_emit_byte (mb, CEE_LDARG_2);
4927 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4928 mono_mb_emit_byte (mb, CEE_PREFIX1);
4929 mono_mb_emit_byte (mb, CEE_CGT_UN);
4930 mono_mb_emit_byte (mb, CEE_PREFIX1);
4931 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4933 clause->handler_offset = mono_mb_get_label (mb);
4936 /* store exception */
4937 mono_mb_emit_stloc (mb, 1);
4939 mono_mb_emit_byte (mb, CEE_LDARG_2);
4940 mono_mb_emit_ldloc (mb, 1);
4941 mono_mb_emit_byte (mb, CEE_STIND_REF);
4943 mono_mb_emit_byte (mb, CEE_LDNULL);
4944 mono_mb_emit_stloc (mb, 0);
4946 /* Check for the abort exception */
4947 mono_mb_emit_ldloc (mb, 1);
4948 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4949 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4951 /* Delay the abort exception */
4952 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4954 mono_mb_patch_short_branch (mb, posna);
4955 mono_mb_emit_branch (mb, CEE_LEAVE);
4957 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4960 mono_mb_patch_branch (mb, pos);
4961 mono_mb_emit_ldloc (mb, 0);
4962 mono_mb_emit_byte (mb, CEE_RET);
4964 if (need_direct_wrapper) {
4965 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4967 /* taken from mono_mb_create_and_cache */
4968 mono_marshal_lock ();
4969 res = g_hash_table_lookup (cache, callsig);
4970 mono_marshal_unlock ();
4972 /* Somebody may have created it before us */
4975 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4977 mono_marshal_lock ();
4978 res = g_hash_table_lookup (cache, callsig);
4981 g_hash_table_insert (cache, callsig, res);
4982 /* Can't insert it into wrapper_hash since the key is a signature */
4984 mono_free_method (newm);
4986 mono_marshal_unlock ();
4989 /* end mono_mb_create_and_cache */
4994 header = ((MonoMethodNormal *)res)->header;
4995 header->num_clauses = 1;
4996 header->clauses = clause;
5002 * mono_marshal_get_static_rgctx_invoke:
5005 * Generates a wrapper for calling a generic shared method, either
5006 * static or generic. We need this for virtual generic method lookup
5007 * and ldftn when we do generic code sharing. Instead of producing
5008 * the address of the method we produce the address of a wrapper for
5009 * the method because the wrapper passes the (method) runtime generic
5010 * context argument which calli cannot do.
5013 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
5015 static gboolean inited = FALSE;
5016 static int num_wrappers = 0;
5018 MonoMethodBuilder *mb;
5020 MonoClass *target_klass = method->klass;
5021 MonoMethodSignature *sig = mono_method_signature (method);
5025 MonoImage *image = method->klass->image;
5027 if (!(cache = image->static_rgctx_invoke_cache)) {
5028 mono_marshal_lock ();
5029 if (!(cache = image->static_rgctx_invoke_cache)) {
5030 cache = image->static_rgctx_invoke_cache =
5031 g_hash_table_new (mono_aligned_addr_hash, NULL);
5033 mono_marshal_unlock ();
5036 if ((res = mono_marshal_find_in_cache (cache, method)))
5040 mono_counters_register ("static rgctx invoke wrappers",
5041 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
5046 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
5047 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
5050 for (i = 0; i < sig->param_count + sig->hasthis; i++)
5051 mono_mb_emit_ldarg (mb, i);
5052 mono_mb_emit_op (mb, CEE_CALL, method);
5053 mono_mb_emit_byte (mb, CEE_RET);
5055 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
5056 sig->param_count + sig->hasthis + 4);
5057 res->skip_visibility = TRUE;
5058 res->flags = method->flags;
5066 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5068 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5069 klass->name_space, klass->name);
5071 mono_mb_emit_exception_marshal_directive (mb, msg);
5075 * mono_marshal_get_ldfld_remote_wrapper:
5076 * @klass: The return type
5078 * This method generates a wrapper for calling mono_load_remote_field_new.
5079 * The return type is ignored for now, as mono_load_remote_field_new () always
5080 * returns an object. In the future, to optimize some codepaths, we might
5081 * call a different function that takes a pointer to a valuetype, instead.
5084 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5086 MonoMethodSignature *sig, *csig;
5087 MonoMethodBuilder *mb;
5089 static MonoMethod* cached = NULL;
5091 mono_marshal_lock ();
5093 mono_marshal_unlock ();
5096 mono_marshal_unlock ();
5098 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5100 mb->method->save_lmf = 1;
5102 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5103 sig->params [0] = &mono_defaults.object_class->byval_arg;
5104 sig->params [1] = &mono_defaults.int_class->byval_arg;
5105 sig->params [2] = &mono_defaults.int_class->byval_arg;
5106 sig->ret = &mono_defaults.object_class->byval_arg;
5108 mono_mb_emit_ldarg (mb, 0);
5109 mono_mb_emit_ldarg (mb, 1);
5110 mono_mb_emit_ldarg (mb, 2);
5112 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5113 csig->params [0] = &mono_defaults.object_class->byval_arg;
5114 csig->params [1] = &mono_defaults.int_class->byval_arg;
5115 csig->params [2] = &mono_defaults.int_class->byval_arg;
5116 csig->ret = &mono_defaults.object_class->byval_arg;
5119 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5120 emit_thread_interrupt_checkpoint (mb);
5122 mono_mb_emit_byte (mb, CEE_RET);
5124 mono_marshal_lock ();
5126 mono_marshal_unlock ();
5129 newm = mono_mb_create_method (mb, sig, 4);
5130 mono_marshal_lock ();
5135 mono_marshal_unlock ();
5137 mono_marshal_unlock ();
5138 mono_free_method (newm);
5147 * mono_marshal_get_ldfld_wrapper:
5148 * @type: the type of the field
5150 * This method generates a function which can be use to load a field with type
5151 * @type from an object. The generated function has the following signature:
5152 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5155 mono_marshal_get_ldfld_wrapper (MonoType *type)
5157 MonoMethodSignature *sig;
5158 MonoMethodBuilder *mb;
5163 int t, pos0, pos1 = 0;
5165 type = mono_type_get_underlying_type (type);
5170 if (type->type == MONO_TYPE_SZARRAY) {
5171 klass = mono_defaults.array_class;
5172 } else if (type->type == MONO_TYPE_VALUETYPE) {
5173 klass = type->data.klass;
5174 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5175 klass = mono_defaults.object_class;
5176 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5177 klass = mono_defaults.int_class;
5178 } else if (t == MONO_TYPE_GENERICINST) {
5179 if (mono_type_generic_inst_is_valuetype (type))
5180 klass = mono_class_from_mono_type (type);
5182 klass = mono_defaults.object_class;
5184 klass = mono_class_from_mono_type (type);
5187 klass = mono_defaults.int_class;
5190 cache = klass->image->ldfld_wrapper_cache;
5191 if ((res = mono_marshal_find_in_cache (cache, klass)))
5194 /* we add the %p pointer value of klass because class names are not unique */
5195 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5196 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5199 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5200 sig->params [0] = &mono_defaults.object_class->byval_arg;
5201 sig->params [1] = &mono_defaults.int_class->byval_arg;
5202 sig->params [2] = &mono_defaults.int_class->byval_arg;
5203 sig->params [3] = &mono_defaults.int_class->byval_arg;
5204 sig->ret = &klass->byval_arg;
5206 mono_mb_emit_ldarg (mb, 0);
5207 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5209 mono_mb_emit_ldarg (mb, 0);
5210 mono_mb_emit_ldarg (mb, 1);
5211 mono_mb_emit_ldarg (mb, 2);
5213 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5216 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5217 csig->params [0] = &mono_defaults.object_class->byval_arg;
5218 csig->params [1] = &mono_defaults.int_class->byval_arg;
5219 csig->params [2] = &mono_defaults.int_class->byval_arg;
5220 csig->ret = &klass->this_arg;
5223 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5224 emit_thread_interrupt_checkpoint (mb);
5227 if (klass->valuetype) {
5228 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5229 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5231 mono_mb_emit_byte (mb, CEE_RET);
5235 mono_mb_patch_branch (mb, pos0);
5237 mono_mb_emit_ldarg (mb, 0);
5238 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5239 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5240 mono_mb_emit_ldarg (mb, 3);
5241 mono_mb_emit_byte (mb, CEE_ADD);
5243 if (klass->valuetype)
5244 mono_mb_patch_branch (mb, pos1);
5249 case MONO_TYPE_BOOLEAN:
5250 case MONO_TYPE_CHAR:
5259 case MONO_TYPE_ARRAY:
5260 case MONO_TYPE_SZARRAY:
5261 case MONO_TYPE_OBJECT:
5262 case MONO_TYPE_CLASS:
5263 case MONO_TYPE_STRING:
5267 case MONO_TYPE_FNPTR:
5268 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5270 case MONO_TYPE_VALUETYPE:
5271 g_assert (!klass->enumtype);
5272 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5274 case MONO_TYPE_GENERICINST:
5275 if (mono_type_generic_inst_is_valuetype (type)) {
5276 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5278 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5282 g_warning ("type %x not implemented", type->type);
5283 g_assert_not_reached ();
5286 mono_mb_emit_byte (mb, CEE_RET);
5288 res = mono_mb_create_and_cache (cache, klass,
5289 mb, sig, sig->param_count + 16);
5296 * mono_marshal_get_ldflda_wrapper:
5297 * @type: the type of the field
5299 * This method generates a function which can be used to load a field address
5300 * from an object. The generated function has the following signature:
5301 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5304 mono_marshal_get_ldflda_wrapper (MonoType *type)
5306 MonoMethodSignature *sig;
5307 MonoMethodBuilder *mb;
5312 int t, pos0, pos1, pos2, pos3;
5314 type = mono_type_get_underlying_type (type);
5318 if (type->type == MONO_TYPE_SZARRAY) {
5319 klass = mono_defaults.array_class;
5320 } else if (type->type == MONO_TYPE_VALUETYPE) {
5321 klass = type->data.klass;
5322 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5323 t == MONO_TYPE_CLASS) {
5324 klass = mono_defaults.object_class;
5325 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5326 klass = mono_defaults.int_class;
5327 } else if (t == MONO_TYPE_GENERICINST) {
5328 if (mono_type_generic_inst_is_valuetype (type))
5329 klass = mono_class_from_mono_type (type);
5331 klass = mono_defaults.object_class;
5333 klass = mono_class_from_mono_type (type);
5336 klass = mono_defaults.int_class;
5339 cache = klass->image->ldflda_wrapper_cache;
5340 if ((res = mono_marshal_find_in_cache (cache, klass)))
5343 /* we add the %p pointer value of klass because class names are not unique */
5344 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5345 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5348 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5349 sig->params [0] = &mono_defaults.object_class->byval_arg;
5350 sig->params [1] = &mono_defaults.int_class->byval_arg;
5351 sig->params [2] = &mono_defaults.int_class->byval_arg;
5352 sig->params [3] = &mono_defaults.int_class->byval_arg;
5353 sig->ret = &mono_defaults.int_class->byval_arg;
5355 /* if typeof (this) != transparent_proxy goto pos0 */
5356 mono_mb_emit_ldarg (mb, 0);
5357 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5359 /* if same_appdomain goto pos1 */
5360 mono_mb_emit_ldarg (mb, 0);
5361 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5363 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5365 /* same app domain */
5366 mono_mb_patch_branch (mb, pos1);
5368 /* if typeof (this) != contextbound goto pos2 */
5369 mono_mb_emit_ldarg (mb, 0);
5370 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5372 /* if this->rp->context == mono_context_get goto pos3 */
5373 mono_mb_emit_ldarg (mb, 0);
5374 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5375 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5376 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5377 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5378 mono_mb_emit_icall (mb, mono_context_get);
5379 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5381 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5383 mono_mb_patch_branch (mb, pos2);
5384 mono_mb_patch_branch (mb, pos3);
5386 /* return the address of the field from this->rp->unwrapped_server */
5387 mono_mb_emit_ldarg (mb, 0);
5388 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5389 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5390 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5391 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5392 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5393 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5394 mono_mb_emit_ldarg (mb, 3);
5395 mono_mb_emit_byte (mb, CEE_ADD);
5396 mono_mb_emit_byte (mb, CEE_RET);
5398 /* not a proxy: return the address of the field directly */
5399 mono_mb_patch_branch (mb, pos0);
5401 mono_mb_emit_ldarg (mb, 0);
5402 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5403 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5404 mono_mb_emit_ldarg (mb, 3);
5405 mono_mb_emit_byte (mb, CEE_ADD);
5407 mono_mb_emit_byte (mb, CEE_RET);
5409 res = mono_mb_create_and_cache (cache, klass,
5410 mb, sig, sig->param_count + 16);
5417 * mono_marshal_get_stfld_remote_wrapper:
5418 * klass: The type of the field
5420 * This function generates a wrapper for calling mono_store_remote_field_new
5421 * with the appropriate signature.
5422 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5423 * klass argument anymore.
5426 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5428 MonoMethodSignature *sig, *csig;
5429 MonoMethodBuilder *mb;
5431 static MonoMethod *cached = NULL;
5433 mono_marshal_lock ();
5435 mono_marshal_unlock ();
5438 mono_marshal_unlock ();
5440 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5442 mb->method->save_lmf = 1;
5444 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5445 sig->params [0] = &mono_defaults.object_class->byval_arg;
5446 sig->params [1] = &mono_defaults.int_class->byval_arg;
5447 sig->params [2] = &mono_defaults.int_class->byval_arg;
5448 sig->params [3] = &mono_defaults.object_class->byval_arg;
5449 sig->ret = &mono_defaults.void_class->byval_arg;
5451 mono_mb_emit_ldarg (mb, 0);
5452 mono_mb_emit_ldarg (mb, 1);
5453 mono_mb_emit_ldarg (mb, 2);
5454 mono_mb_emit_ldarg (mb, 3);
5456 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5457 csig->params [0] = &mono_defaults.object_class->byval_arg;
5458 csig->params [1] = &mono_defaults.int_class->byval_arg;
5459 csig->params [2] = &mono_defaults.int_class->byval_arg;
5460 csig->params [3] = &mono_defaults.object_class->byval_arg;
5461 csig->ret = &mono_defaults.void_class->byval_arg;
5464 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5465 emit_thread_interrupt_checkpoint (mb);
5467 mono_mb_emit_byte (mb, CEE_RET);
5469 mono_marshal_lock ();
5471 mono_marshal_unlock ();
5474 newm = mono_mb_create_method (mb, sig, 6);
5475 mono_marshal_lock ();
5480 mono_marshal_unlock ();
5482 mono_marshal_unlock ();
5483 mono_free_method (newm);
5492 * mono_marshal_get_stfld_wrapper:
5493 * @type: the type of the field
5495 * This method generates a function which can be use to store a field with type
5496 * @type. The generated function has the following signature:
5497 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5500 mono_marshal_get_stfld_wrapper (MonoType *type)
5502 MonoMethodSignature *sig;
5503 MonoMethodBuilder *mb;
5510 type = mono_type_get_underlying_type (type);
5514 if (type->type == MONO_TYPE_SZARRAY) {
5515 klass = mono_defaults.array_class;
5516 } else if (type->type == MONO_TYPE_VALUETYPE) {
5517 klass = type->data.klass;
5518 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5519 klass = mono_defaults.object_class;
5520 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5521 klass = mono_defaults.int_class;
5522 } else if (t == MONO_TYPE_GENERICINST) {
5523 if (mono_type_generic_inst_is_valuetype (type))
5524 klass = mono_class_from_mono_type (type);
5526 klass = mono_defaults.object_class;
5528 klass = mono_class_from_mono_type (type);
5531 klass = mono_defaults.int_class;
5534 cache = klass->image->stfld_wrapper_cache;
5535 if ((res = mono_marshal_find_in_cache (cache, klass)))
5538 /* we add the %p pointer value of klass because class names are not unique */
5539 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5540 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5543 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5544 sig->params [0] = &mono_defaults.object_class->byval_arg;
5545 sig->params [1] = &mono_defaults.int_class->byval_arg;
5546 sig->params [2] = &mono_defaults.int_class->byval_arg;
5547 sig->params [3] = &mono_defaults.int_class->byval_arg;
5548 sig->params [4] = &klass->byval_arg;
5549 sig->ret = &mono_defaults.void_class->byval_arg;
5551 mono_mb_emit_ldarg (mb, 0);
5552 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5554 mono_mb_emit_ldarg (mb, 0);
5555 mono_mb_emit_ldarg (mb, 1);
5556 mono_mb_emit_ldarg (mb, 2);
5557 mono_mb_emit_ldarg (mb, 4);
5558 if (klass->valuetype)
5559 mono_mb_emit_op (mb, CEE_BOX, klass);
5561 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5563 mono_mb_emit_byte (mb, CEE_RET);
5565 mono_mb_patch_branch (mb, pos);
5567 mono_mb_emit_ldarg (mb, 0);
5568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5569 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5570 mono_mb_emit_ldarg (mb, 3);
5571 mono_mb_emit_byte (mb, CEE_ADD);
5572 mono_mb_emit_ldarg (mb, 4);
5577 case MONO_TYPE_BOOLEAN:
5578 case MONO_TYPE_CHAR:
5587 case MONO_TYPE_ARRAY:
5588 case MONO_TYPE_SZARRAY:
5589 case MONO_TYPE_OBJECT:
5590 case MONO_TYPE_CLASS:
5591 case MONO_TYPE_STRING:
5595 case MONO_TYPE_FNPTR:
5596 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5598 case MONO_TYPE_VALUETYPE:
5599 g_assert (!klass->enumtype);
5600 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5602 case MONO_TYPE_GENERICINST:
5603 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5606 g_warning ("type %x not implemented", type->type);
5607 g_assert_not_reached ();
5610 mono_mb_emit_byte (mb, CEE_RET);
5612 res = mono_mb_create_and_cache (cache, klass,
5613 mb, sig, sig->param_count + 16);
5620 * generates IL code for the icall wrapper (the generated method
5621 * calls the unmanaged code in func)
5624 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5626 MonoMethodSignature *csig;
5627 MonoMethodBuilder *mb;
5631 g_assert (sig->pinvoke);
5633 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5635 mb->method->save_lmf = 1;
5637 /* we copy the signature, so that we can modify it */
5640 mono_mb_emit_byte (mb, CEE_LDARG_0);
5642 for (i = 0; i < sig->param_count; i++)
5643 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5645 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5646 if (check_exceptions)
5647 emit_thread_interrupt_checkpoint (mb);
5648 mono_mb_emit_byte (mb, CEE_RET);
5650 csig = signature_dup (mono_defaults.corlib, sig);
5652 if (csig->call_convention == MONO_CALL_VARARG)
5653 csig->call_convention = 0;
5655 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5662 MonoMethodBuilder *mb;
5663 MonoMethodSignature *sig;
5664 MonoMethodPInvoke *piinfo;
5665 int *orig_conv_args; /* Locals containing the original values of byref args */
5667 MonoClass *retobj_class;
5668 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5669 MonoImage *image; /* The image to use for looking up custom marshallers */
5670 } EmitMarshalContext;
5674 * This is invoked to convert arguments from the current types to
5675 * the underlying types expected by the platform routine. If required,
5676 * the methods create a temporary variable with the proper type, and return
5677 * the location for it (either the passed argument, or the newly allocated
5680 MARSHAL_ACTION_CONV_IN,
5683 * This operation is called to push the actual value that was optionally
5684 * converted on the first stage
5686 MARSHAL_ACTION_PUSH,
5689 * Convert byref arguments back or free resources allocated during the
5692 MARSHAL_ACTION_CONV_OUT,
5695 * The result from the unmanaged call is at the top of the stack when
5696 * this action is invoked. The result should be stored in the
5697 * third local variable slot.
5699 MARSHAL_ACTION_CONV_RESULT,
5701 MARSHAL_ACTION_MANAGED_CONV_IN,
5702 MARSHAL_ACTION_MANAGED_CONV_OUT,
5703 MARSHAL_ACTION_MANAGED_CONV_RESULT
5707 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5708 MonoMarshalSpec *spec,
5709 int conv_arg, MonoType **conv_arg_type,
5710 MarshalAction action)
5714 static MonoClass *ICustomMarshaler = NULL;
5715 static MonoMethod *cleanup_native, *cleanup_managed;
5716 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5717 MonoMethod *get_instance;
5718 MonoMethodBuilder *mb = m->mb;
5719 char *exception_msg = NULL;
5723 if (!ICustomMarshaler) {
5724 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5725 g_assert (ICustomMarshaler);
5727 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5728 g_assert (cleanup_native);
5729 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5730 g_assert (cleanup_managed);
5731 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5732 g_assert (marshal_managed_to_native);
5733 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5734 g_assert (marshal_native_to_managed);
5737 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5738 g_assert (mtype != NULL);
5739 mklass = mono_class_from_mono_type (mtype);
5740 g_assert (mklass != NULL);
5742 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5743 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5745 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5747 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5748 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5749 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5750 (get_sig->params [0]->type != MONO_TYPE_STRING))
5751 get_instance = NULL;
5755 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);
5757 /* Throw exception and emit compensation code if neccesary */
5758 if (exception_msg) {
5760 case MARSHAL_ACTION_CONV_IN:
5761 case MARSHAL_ACTION_CONV_RESULT:
5762 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5763 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5764 mono_mb_emit_byte (mb, CEE_POP);
5766 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5767 g_free (exception_msg);
5770 case MARSHAL_ACTION_PUSH:
5771 mono_mb_emit_byte (mb, CEE_LDNULL);
5779 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5780 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5783 case MARSHAL_ACTION_CONV_IN:
5785 case MONO_TYPE_CLASS:
5786 case MONO_TYPE_OBJECT:
5787 case MONO_TYPE_STRING:
5788 case MONO_TYPE_ARRAY:
5789 case MONO_TYPE_SZARRAY:
5790 case MONO_TYPE_VALUETYPE:
5794 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5795 g_assert_not_reached ();
5799 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5801 mono_mb_emit_byte (mb, CEE_LDNULL);
5802 mono_mb_emit_stloc (mb, conv_arg);
5804 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5807 /* Minic MS.NET behavior */
5808 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5811 /* Check for null */
5812 mono_mb_emit_ldarg (mb, argnum);
5814 mono_mb_emit_byte (mb, CEE_LDIND_I);
5815 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5817 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5819 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5821 mono_mb_emit_ldarg (mb, argnum);
5823 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5825 if (t->type == MONO_TYPE_VALUETYPE) {
5827 * Since we can't determine the type of the argument, we
5828 * will assume the unmanaged function takes a pointer.
5830 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5832 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5835 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5836 mono_mb_emit_stloc (mb, conv_arg);
5838 mono_mb_patch_branch (mb, pos2);
5841 case MARSHAL_ACTION_CONV_OUT:
5842 /* Check for null */
5843 mono_mb_emit_ldloc (mb, conv_arg);
5844 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5847 mono_mb_emit_ldarg (mb, argnum);
5849 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5851 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5853 mono_mb_emit_ldloc (mb, conv_arg);
5854 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5855 mono_mb_emit_byte (mb, CEE_STIND_REF);
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, marshal_native_to_managed);
5864 /* We have nowhere to store the result */
5865 mono_mb_emit_byte (mb, CEE_POP);
5868 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5870 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5872 mono_mb_emit_ldloc (mb, conv_arg);
5874 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5876 mono_mb_patch_branch (mb, pos2);
5879 case MARSHAL_ACTION_PUSH:
5881 mono_mb_emit_ldloc_addr (mb, conv_arg);
5883 mono_mb_emit_ldloc (mb, conv_arg);
5886 case MARSHAL_ACTION_CONV_RESULT:
5887 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5889 mono_mb_emit_stloc (mb, 3);
5891 mono_mb_emit_ldloc (mb, 3);
5892 mono_mb_emit_stloc (mb, loc1);
5894 /* Check for null */
5895 mono_mb_emit_ldloc (mb, 3);
5896 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5898 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5900 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5901 mono_mb_emit_byte (mb, CEE_DUP);
5903 mono_mb_emit_ldloc (mb, 3);
5904 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5905 mono_mb_emit_stloc (mb, 3);
5907 mono_mb_emit_ldloc (mb, loc1);
5908 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5910 mono_mb_patch_branch (mb, pos2);
5913 case MARSHAL_ACTION_MANAGED_CONV_IN:
5914 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5916 mono_mb_emit_byte (mb, CEE_LDNULL);
5917 mono_mb_emit_stloc (mb, conv_arg);
5919 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5922 /* Check for null */
5923 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_byte (mb, CEE_LDIND_I);
5926 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5928 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5929 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5931 mono_mb_emit_ldarg (mb, argnum);
5933 mono_mb_emit_byte (mb, CEE_LDIND_I);
5935 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5936 mono_mb_emit_stloc (mb, conv_arg);
5938 mono_mb_patch_branch (mb, pos2);
5941 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5942 g_assert (!t->byref);
5944 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5946 mono_mb_emit_stloc (mb, 3);
5948 mono_mb_emit_ldloc (mb, 3);
5949 mono_mb_emit_stloc (mb, loc1);
5951 /* Check for null */
5952 mono_mb_emit_ldloc (mb, 3);
5953 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5955 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5956 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5957 mono_mb_emit_byte (mb, CEE_DUP);
5959 mono_mb_emit_ldloc (mb, 3);
5960 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5961 mono_mb_emit_stloc (mb, 3);
5963 mono_mb_emit_ldloc (mb, loc1);
5964 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5966 mono_mb_patch_branch (mb, pos2);
5969 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5971 /* Check for null */
5972 mono_mb_emit_ldloc (mb, conv_arg);
5973 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5976 mono_mb_emit_ldarg (mb, argnum);
5978 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5980 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5982 mono_mb_emit_ldloc (mb, conv_arg);
5983 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5984 mono_mb_emit_byte (mb, CEE_STIND_I);
5987 /* Call CleanUpManagedData */
5988 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5990 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5992 mono_mb_emit_ldloc (mb, conv_arg);
5993 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5995 mono_mb_patch_branch (mb, pos2);
5999 g_assert_not_reached ();
6006 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6007 MonoMarshalSpec *spec,
6008 int conv_arg, MonoType **conv_arg_type,
6009 MarshalAction action)
6011 MonoMethodBuilder *mb = m->mb;
6014 case MARSHAL_ACTION_CONV_IN: {
6015 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6017 g_assert (t->type == MONO_TYPE_OBJECT);
6018 g_assert (!t->byref);
6020 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6021 mono_mb_emit_ldarg (mb, argnum);
6022 mono_mb_emit_icon (mb, encoding);
6023 mono_mb_emit_icon (mb, t->attrs);
6024 mono_mb_emit_icall (mb, mono_marshal_asany);
6025 mono_mb_emit_stloc (mb, conv_arg);
6029 case MARSHAL_ACTION_PUSH:
6030 mono_mb_emit_ldloc (mb, conv_arg);
6033 case MARSHAL_ACTION_CONV_OUT: {
6034 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6036 mono_mb_emit_ldarg (mb, argnum);
6037 mono_mb_emit_ldloc (mb, conv_arg);
6038 mono_mb_emit_icon (mb, encoding);
6039 mono_mb_emit_icon (mb, t->attrs);
6040 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6045 g_assert_not_reached ();
6052 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6053 MonoMarshalSpec *spec,
6054 int conv_arg, MonoType **conv_arg_type,
6055 MarshalAction action)
6057 MonoMethodBuilder *mb = m->mb;
6061 klass = t->data.klass;
6064 case MARSHAL_ACTION_CONV_IN:
6065 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6066 klass->blittable || klass->enumtype)
6069 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6071 /* store the address of the source into local variable 0 */
6073 mono_mb_emit_ldarg (mb, argnum);
6075 mono_mb_emit_ldarg_addr (mb, argnum);
6077 mono_mb_emit_stloc (mb, 0);
6079 /* allocate space for the native struct and
6080 * store the address into local variable 1 (dest) */
6081 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6082 mono_mb_emit_byte (mb, CEE_PREFIX1);
6083 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6084 mono_mb_emit_stloc (mb, conv_arg);
6087 mono_mb_emit_ldloc (mb, 0);
6088 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6091 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6093 mono_mb_emit_ldloc (mb, conv_arg);
6094 mono_mb_emit_stloc (mb, 1);
6096 /* emit valuetype conversion code */
6097 emit_struct_conv (mb, klass, FALSE);
6101 mono_mb_patch_branch (mb, pos);
6104 case MARSHAL_ACTION_PUSH:
6105 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6107 g_assert (!t->byref);
6109 /* Have to change the signature since the vtype is passed byref */
6110 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6112 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6113 klass->blittable || klass->enumtype)
6114 mono_mb_emit_ldarg_addr (mb, argnum);
6116 mono_mb_emit_ldloc (mb, conv_arg);
6120 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6121 klass->blittable || klass->enumtype) {
6122 mono_mb_emit_ldarg (mb, argnum);
6125 mono_mb_emit_ldloc (mb, conv_arg);
6127 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6128 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6132 case MARSHAL_ACTION_CONV_OUT:
6133 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6134 klass->blittable || klass->enumtype)
6138 /* dst = argument */
6139 mono_mb_emit_ldarg (mb, argnum);
6140 mono_mb_emit_stloc (mb, 1);
6142 mono_mb_emit_ldloc (mb, 1);
6143 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6145 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6146 /* src = tmp_locals [i] */
6147 mono_mb_emit_ldloc (mb, conv_arg);
6148 mono_mb_emit_stloc (mb, 0);
6150 /* emit valuetype conversion code */
6151 emit_struct_conv (mb, klass, TRUE);
6155 emit_struct_free (mb, klass, conv_arg);
6158 mono_mb_patch_branch (mb, pos);
6161 case MARSHAL_ACTION_CONV_RESULT:
6162 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6164 mono_mb_emit_stloc (mb, 3);
6167 /* load pointer to returned value type */
6168 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6169 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6170 /* store the address of the source into local variable 0 */
6171 mono_mb_emit_stloc (mb, 0);
6173 mono_mb_emit_ldloc_addr (mb, 3);
6174 mono_mb_emit_stloc (mb, 1);
6176 /* emit valuetype conversion code */
6177 emit_struct_conv (mb, klass, TRUE);
6180 case MARSHAL_ACTION_MANAGED_CONV_IN:
6181 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6182 klass->blittable || klass->enumtype) {
6187 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6189 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6193 mono_mb_emit_ldarg (mb, argnum);
6195 mono_mb_emit_ldarg_addr (mb, argnum);
6196 mono_mb_emit_stloc (mb, 0);
6199 mono_mb_emit_ldloc (mb, 0);
6200 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6203 mono_mb_emit_ldloc_addr (mb, conv_arg);
6204 mono_mb_emit_stloc (mb, 1);
6206 /* emit valuetype conversion code */
6207 emit_struct_conv (mb, klass, TRUE);
6210 mono_mb_patch_branch (mb, pos);
6213 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6214 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6215 klass->blittable || klass->enumtype) {
6219 /* Check for null */
6220 mono_mb_emit_ldarg (mb, argnum);
6221 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6224 mono_mb_emit_ldloc_addr (mb, conv_arg);
6225 mono_mb_emit_stloc (mb, 0);
6228 mono_mb_emit_ldarg (mb, argnum);
6229 mono_mb_emit_stloc (mb, 1);
6231 /* emit valuetype conversion code */
6232 emit_struct_conv (mb, klass, FALSE);
6234 mono_mb_patch_branch (mb, pos2);
6237 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6238 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6239 klass->blittable || klass->enumtype) {
6240 mono_mb_emit_stloc (mb, 3);
6245 /* load pointer to returned value type */
6246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6247 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6249 /* store the address of the source into local variable 0 */
6250 mono_mb_emit_stloc (mb, 0);
6251 /* allocate space for the native struct and
6252 * store the address into dst_ptr */
6253 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6254 m->retobj_class = klass;
6255 g_assert (m->retobj_var);
6256 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6257 mono_mb_emit_byte (mb, CEE_CONV_I);
6258 mono_mb_emit_icall (mb, mono_marshal_alloc);
6259 mono_mb_emit_stloc (mb, 1);
6260 mono_mb_emit_ldloc (mb, 1);
6261 mono_mb_emit_stloc (mb, m->retobj_var);
6263 /* emit valuetype conversion code */
6264 emit_struct_conv (mb, klass, FALSE);
6268 g_assert_not_reached ();
6275 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6276 MonoMarshalSpec *spec,
6277 int conv_arg, MonoType **conv_arg_type,
6278 MarshalAction action)
6280 MonoMethodBuilder *mb = m->mb;
6281 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6282 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6286 case MARSHAL_ACTION_CONV_IN:
6287 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6288 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6291 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6294 mono_mb_emit_ldarg (mb, argnum);
6295 mono_mb_emit_byte (mb, CEE_LDIND_I);
6297 mono_mb_emit_ldarg (mb, argnum);
6301 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6302 MonoException *exc = mono_get_exception_not_implemented (msg);
6305 mono_raise_exception (exc);
6308 mono_mb_emit_icall (mb, conv_to_icall (conv));
6310 mono_mb_emit_stloc (mb, conv_arg);
6313 case MARSHAL_ACTION_CONV_OUT:
6314 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6316 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6317 mono_mb_emit_exception_marshal_directive (mb, msg);
6321 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6322 mono_mb_emit_ldarg (mb, argnum);
6323 mono_mb_emit_ldloc (mb, conv_arg);
6324 mono_mb_emit_icall (mb, conv_to_icall (conv));
6325 mono_mb_emit_byte (mb, CEE_STIND_REF);
6329 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6330 mono_mb_emit_ldloc (mb, conv_arg);
6331 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6332 mono_mb_emit_icall (mb, mono_free_bstr);
6334 mono_mb_emit_icall (mb, mono_marshal_free);
6338 case MARSHAL_ACTION_PUSH:
6340 mono_mb_emit_ldloc_addr (mb, conv_arg);
6342 mono_mb_emit_ldloc (mb, conv_arg);
6345 case MARSHAL_ACTION_CONV_RESULT:
6346 mono_mb_emit_stloc (mb, 0);
6348 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6350 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6351 mono_mb_emit_exception_marshal_directive (mb, msg);
6355 mono_mb_emit_ldloc (mb, 0);
6356 mono_mb_emit_icall (mb, conv_to_icall (conv));
6357 mono_mb_emit_stloc (mb, 3);
6359 /* free the string */
6360 mono_mb_emit_ldloc (mb, 0);
6361 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6362 mono_mb_emit_icall (mb, mono_free_bstr);
6364 mono_mb_emit_icall (mb, mono_marshal_free);
6367 case MARSHAL_ACTION_MANAGED_CONV_IN:
6373 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6374 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6376 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6378 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6379 mono_mb_emit_exception_marshal_directive (mb, msg);
6383 mono_mb_emit_ldarg (mb, argnum);
6384 mono_mb_emit_icall (mb, conv_to_icall (conv));
6385 mono_mb_emit_stloc (mb, conv_arg);
6388 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6389 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6390 /* We need to make a copy so the caller is able to free it */
6391 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6393 mono_mb_emit_icall (mb, conv_to_icall (conv));
6394 mono_mb_emit_stloc (mb, 3);
6398 g_assert_not_reached ();
6405 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6406 MonoMarshalSpec *spec, int conv_arg,
6407 MonoType **conv_arg_type, MarshalAction action)
6409 MonoMethodBuilder *mb = m->mb;
6412 case MARSHAL_ACTION_CONV_IN: {
6413 MonoType *intptr_type;
6414 int dar_release_slot, pos;
6416 intptr_type = &mono_defaults.int_class->byval_arg;
6417 conv_arg = mono_mb_add_local (mb, intptr_type);
6418 *conv_arg_type = intptr_type;
6420 if (!sh_dangerous_add_ref)
6421 init_safe_handle ();
6423 mono_mb_emit_ldarg (mb, argnum);
6424 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6425 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6427 mono_mb_patch_branch (mb, pos);
6430 * My tests in show that ref SafeHandles are not really
6431 * passed as ref objects. Instead a NULL is passed as the
6434 mono_mb_emit_icon (mb, 0);
6435 mono_mb_emit_stloc (mb, conv_arg);
6439 /* Create local to hold the ref parameter to DangerousAddRef */
6440 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6442 /* set release = false; */
6443 mono_mb_emit_icon (mb, 0);
6444 mono_mb_emit_stloc (mb, dar_release_slot);
6446 /* safehandle.DangerousAddRef (ref release) */
6447 mono_mb_emit_ldarg (mb, argnum);
6448 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6449 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6451 /* Pull the handle field from SafeHandle */
6452 mono_mb_emit_ldarg (mb, argnum);
6453 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6454 mono_mb_emit_byte (mb, CEE_LDIND_I);
6455 mono_mb_emit_stloc (mb, conv_arg);
6460 case MARSHAL_ACTION_PUSH:
6462 mono_mb_emit_ldloc_addr (mb, conv_arg);
6464 mono_mb_emit_ldloc (mb, conv_arg);
6467 case MARSHAL_ACTION_CONV_OUT: {
6468 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6469 int dar_release_slot = conv_arg + 1;
6472 if (!sh_dangerous_release)
6473 init_safe_handle ();
6479 * My tests indicate that ref SafeHandles parameters are not actually
6480 * passed by ref, but instead a new Handle is created regardless of
6481 * whether a change happens in the unmanaged side.
6483 * Also, the Handle is created before calling into unmanaged code,
6484 * but we do not support that mechanism (getting to the original
6485 * handle) and it makes no difference where we create this
6487 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6489 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6492 /* refval = new SafeHandleDerived ()*/
6493 mono_mb_emit_ldarg (mb, argnum);
6494 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6495 mono_mb_emit_byte (mb, CEE_STIND_REF);
6497 /* refval.handle = returned_handle */
6498 mono_mb_emit_ldarg (mb, argnum);
6499 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6500 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6501 mono_mb_emit_ldloc (mb, conv_arg);
6502 mono_mb_emit_byte (mb, CEE_STIND_I);
6504 mono_mb_emit_ldloc (mb, dar_release_slot);
6505 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6506 mono_mb_emit_ldarg (mb, argnum);
6507 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6508 mono_mb_patch_branch (mb, label_next);
6513 case MARSHAL_ACTION_CONV_RESULT: {
6514 MonoMethod *ctor = NULL;
6515 int intptr_handle_slot;
6517 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6518 mono_mb_emit_byte (mb, CEE_POP);
6519 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6523 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6525 mono_mb_emit_byte (mb, CEE_POP);
6526 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6529 /* Store the IntPtr results into a local */
6530 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6531 mono_mb_emit_stloc (mb, intptr_handle_slot);
6533 /* Create return value */
6534 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6535 mono_mb_emit_stloc (mb, 3);
6537 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6538 mono_mb_emit_ldloc (mb, 3);
6539 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6540 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6541 mono_mb_emit_byte (mb, CEE_STIND_I);
6545 case MARSHAL_ACTION_MANAGED_CONV_IN:
6546 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6549 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6550 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6553 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6554 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6557 printf ("Unhandled case for MarshalAction: %d\n", action);
6564 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6565 MonoMarshalSpec *spec, int conv_arg,
6566 MonoType **conv_arg_type, MarshalAction action)
6568 MonoMethodBuilder *mb = m->mb;
6571 case MARSHAL_ACTION_CONV_IN: {
6572 MonoType *intptr_type;
6574 intptr_type = &mono_defaults.int_class->byval_arg;
6575 conv_arg = mono_mb_add_local (mb, intptr_type);
6576 *conv_arg_type = intptr_type;
6579 mono_mb_emit_exception_marshal_directive (mb,
6580 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6583 mono_mb_emit_ldarg_addr (mb, argnum);
6584 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6585 mono_mb_emit_byte (mb, CEE_ADD);
6586 mono_mb_emit_byte (mb, CEE_LDIND_I);
6587 mono_mb_emit_stloc (mb, conv_arg);
6591 case MARSHAL_ACTION_PUSH:
6592 mono_mb_emit_ldloc (mb, conv_arg);
6595 case MARSHAL_ACTION_CONV_OUT: {
6596 /* no resource release required */
6600 case MARSHAL_ACTION_CONV_RESULT: {
6601 mono_mb_emit_exception_marshal_directive (mb,
6602 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6606 case MARSHAL_ACTION_MANAGED_CONV_IN:
6607 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6610 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6611 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6614 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6615 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6618 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6625 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6626 MonoMarshalSpec *spec,
6627 int conv_arg, MonoType **conv_arg_type,
6628 MarshalAction action)
6630 MonoMethodBuilder *mb = m->mb;
6631 MonoClass *klass = t->data.klass;
6634 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6635 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6639 case MARSHAL_ACTION_CONV_IN:
6640 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6641 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6643 m->orig_conv_args [argnum] = 0;
6645 if (klass->delegate) {
6647 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6648 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6649 mono_mb_emit_exception_marshal_directive (mb, msg);
6651 mono_mb_emit_byte (mb, CEE_LDNULL);
6652 mono_mb_emit_stloc (mb, conv_arg);
6654 mono_mb_emit_ldarg (mb, argnum);
6655 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6656 mono_mb_emit_stloc (mb, conv_arg);
6658 } else if (klass == mono_defaults.stringbuilder_class) {
6659 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6660 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6662 g_assert (!t->byref);
6663 mono_mb_emit_ldarg (mb, argnum);
6666 mono_mb_emit_icall (mb, conv_to_icall (conv));
6668 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6669 MonoException *exc = mono_get_exception_not_implemented (msg);
6672 mono_raise_exception (exc);
6675 mono_mb_emit_stloc (mb, conv_arg);
6676 } else if (klass->blittable) {
6677 mono_mb_emit_byte (mb, CEE_LDNULL);
6678 mono_mb_emit_stloc (mb, conv_arg);
6680 mono_mb_emit_ldarg (mb, argnum);
6681 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6683 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6685 mono_mb_emit_stloc (mb, conv_arg);
6687 mono_mb_patch_branch (mb, pos);
6690 mono_mb_emit_byte (mb, CEE_LDNULL);
6691 mono_mb_emit_stloc (mb, conv_arg);
6694 /* we dont need any conversions for out parameters */
6695 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6698 mono_mb_emit_ldarg (mb, argnum);
6699 mono_mb_emit_byte (mb, CEE_LDIND_I);
6702 mono_mb_emit_ldarg (mb, argnum);
6703 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6704 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6707 /* store the address of the source into local variable 0 */
6708 mono_mb_emit_stloc (mb, 0);
6709 mono_mb_emit_ldloc (mb, 0);
6710 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6712 /* allocate space for the native struct and store the address */
6713 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6714 mono_mb_emit_byte (mb, CEE_PREFIX1);
6715 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6716 mono_mb_emit_stloc (mb, conv_arg);
6719 /* Need to store the original buffer so we can free it later */
6720 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6721 mono_mb_emit_ldloc (mb, conv_arg);
6722 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6725 /* set the src_ptr */
6726 mono_mb_emit_ldloc (mb, 0);
6727 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6728 mono_mb_emit_stloc (mb, 0);
6731 mono_mb_emit_ldloc (mb, conv_arg);
6732 mono_mb_emit_stloc (mb, 1);
6734 /* emit valuetype conversion code */
6735 emit_struct_conv (mb, klass, FALSE);
6737 mono_mb_patch_branch (mb, pos);
6741 case MARSHAL_ACTION_CONV_OUT:
6742 if (klass == mono_defaults.stringbuilder_class) {
6744 MonoMarshalNative encoding;
6745 MonoMarshalConv conv;
6747 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6748 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6750 g_assert (!t->byref);
6751 g_assert (encoding != -1);
6753 mono_mb_emit_ldarg (mb, argnum);
6754 mono_mb_emit_ldloc (mb, conv_arg);
6756 mono_mb_emit_icall (mb, conv_to_icall (conv));
6759 mono_mb_emit_ldloc (mb, conv_arg);
6760 mono_mb_emit_icall (mb, mono_marshal_free);
6765 if (klass->delegate) {
6767 mono_mb_emit_ldarg (mb, argnum);
6768 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6769 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6770 mono_mb_emit_ldloc (mb, conv_arg);
6771 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6772 mono_mb_emit_byte (mb, CEE_STIND_REF);
6777 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6778 /* allocate a new object */
6779 mono_mb_emit_ldarg (mb, argnum);
6780 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6781 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6782 mono_mb_emit_byte (mb, CEE_STIND_REF);
6785 /* dst = *argument */
6786 mono_mb_emit_ldarg (mb, argnum);
6789 mono_mb_emit_byte (mb, CEE_LDIND_I);
6791 mono_mb_emit_stloc (mb, 1);
6793 mono_mb_emit_ldloc (mb, 1);
6794 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6796 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6797 mono_mb_emit_ldloc (mb, 1);
6798 mono_mb_emit_icon (mb, sizeof (MonoObject));
6799 mono_mb_emit_byte (mb, CEE_ADD);
6800 mono_mb_emit_stloc (mb, 1);
6802 /* src = tmp_locals [i] */
6803 mono_mb_emit_ldloc (mb, conv_arg);
6804 mono_mb_emit_stloc (mb, 0);
6806 /* emit valuetype conversion code */
6807 emit_struct_conv (mb, t->data.klass, TRUE);
6809 /* Free the structure returned by the native code */
6810 emit_struct_free (mb, klass, conv_arg);
6812 if (m->orig_conv_args [argnum]) {
6814 * If the native function changed the pointer, then free
6815 * the original structure plus the new pointer.
6817 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6818 mono_mb_emit_ldloc (mb, conv_arg);
6819 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6821 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6822 g_assert (m->orig_conv_args [argnum]);
6824 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6827 mono_mb_emit_ldloc (mb, conv_arg);
6828 mono_mb_emit_icall (mb, g_free);
6830 mono_mb_patch_branch (mb, pos2);
6834 /* Free the original structure passed to native code */
6835 emit_struct_free (mb, klass, conv_arg);
6837 mono_mb_patch_branch (mb, pos);
6840 case MARSHAL_ACTION_PUSH:
6842 mono_mb_emit_ldloc_addr (mb, conv_arg);
6844 mono_mb_emit_ldloc (mb, conv_arg);
6847 case MARSHAL_ACTION_CONV_RESULT:
6848 if (klass->delegate) {
6849 g_assert (!t->byref);
6850 mono_mb_emit_stloc (mb, 0);
6851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6852 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6853 mono_mb_emit_ldloc (mb, 0);
6854 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6855 mono_mb_emit_stloc (mb, 3);
6858 mono_mb_emit_stloc (mb, 0);
6860 /* Make a copy since emit_conv modifies local 0 */
6861 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6862 mono_mb_emit_ldloc (mb, 0);
6863 mono_mb_emit_stloc (mb, loc);
6865 mono_mb_emit_byte (mb, CEE_LDNULL);
6866 mono_mb_emit_stloc (mb, 3);
6868 mono_mb_emit_ldloc (mb, 0);
6869 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6871 /* allocate result object */
6873 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6874 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6875 mono_mb_emit_stloc (mb, 3);
6879 mono_mb_emit_ldloc (mb, 3);
6880 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6881 mono_mb_emit_stloc (mb, 1);
6883 /* emit conversion code */
6884 emit_struct_conv (mb, klass, TRUE);
6886 emit_struct_free (mb, klass, loc);
6888 /* Free the pointer allocated by unmanaged code */
6889 mono_mb_emit_ldloc (mb, loc);
6890 mono_mb_emit_icall (mb, g_free);
6891 mono_mb_patch_branch (mb, pos);
6895 case MARSHAL_ACTION_MANAGED_CONV_IN:
6896 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6898 if (klass->delegate) {
6899 g_assert (!t->byref);
6900 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6901 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6902 mono_mb_emit_ldarg (mb, argnum);
6903 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6904 mono_mb_emit_stloc (mb, conv_arg);
6908 if (klass == mono_defaults.stringbuilder_class) {
6909 MonoMarshalNative encoding;
6911 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6914 g_assert (encoding == MONO_NATIVE_LPSTR);
6916 g_assert (!t->byref);
6917 g_assert (encoding != -1);
6919 mono_mb_emit_ldarg (mb, argnum);
6920 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6921 mono_mb_emit_stloc (mb, conv_arg);
6925 /* The class can not have an automatic layout */
6926 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6927 mono_mb_emit_auto_layout_exception (mb, klass);
6931 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6932 mono_mb_emit_byte (mb, CEE_LDNULL);
6933 mono_mb_emit_stloc (mb, conv_arg);
6938 mono_mb_emit_ldarg (mb, argnum);
6942 /* Check for NULL and raise an exception */
6943 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6945 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6947 mono_mb_patch_branch (mb, pos2);
6948 mono_mb_emit_ldarg (mb, argnum);
6949 mono_mb_emit_byte (mb, CEE_LDIND_I);
6952 mono_mb_emit_stloc (mb, 0);
6954 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6955 mono_mb_emit_stloc (mb, conv_arg);
6957 mono_mb_emit_ldloc (mb, 0);
6958 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6960 /* Create and set dst */
6961 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6962 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6963 mono_mb_emit_stloc (mb, conv_arg);
6964 mono_mb_emit_ldloc (mb, conv_arg);
6965 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6966 mono_mb_emit_stloc (mb, 1);
6968 /* emit valuetype conversion code */
6969 emit_struct_conv (mb, klass, TRUE);
6971 mono_mb_patch_branch (mb, pos);
6974 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6976 /* Check for null */
6977 mono_mb_emit_ldloc (mb, conv_arg);
6978 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6979 mono_mb_emit_ldarg (mb, argnum);
6980 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6981 mono_mb_emit_byte (mb, CEE_STIND_REF);
6982 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6984 mono_mb_patch_branch (mb, pos);
6987 mono_mb_emit_ldloc (mb, conv_arg);
6988 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6989 mono_mb_emit_stloc (mb, 0);
6991 /* Allocate and set dest */
6992 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6993 mono_mb_emit_byte (mb, CEE_CONV_I);
6994 mono_mb_emit_icall (mb, mono_marshal_alloc);
6995 mono_mb_emit_stloc (mb, 1);
6997 /* Update argument pointer */
6998 mono_mb_emit_ldarg (mb, argnum);
6999 mono_mb_emit_ldloc (mb, 1);
7000 mono_mb_emit_byte (mb, CEE_STIND_I);
7002 /* emit valuetype conversion code */
7003 emit_struct_conv (mb, klass, FALSE);
7005 mono_mb_patch_branch (mb, pos2);
7007 /* byval [Out] marshalling */
7009 /* FIXME: Handle null */
7012 mono_mb_emit_ldloc (mb, conv_arg);
7013 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7014 mono_mb_emit_stloc (mb, 0);
7017 mono_mb_emit_ldarg (mb, argnum);
7018 mono_mb_emit_stloc (mb, 1);
7020 /* emit valuetype conversion code */
7021 emit_struct_conv (mb, klass, FALSE);
7025 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7026 if (klass->delegate) {
7027 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7028 mono_mb_emit_stloc (mb, 3);
7032 /* The class can not have an automatic layout */
7033 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7034 mono_mb_emit_auto_layout_exception (mb, klass);
7038 mono_mb_emit_stloc (mb, 0);
7039 /* Check for null */
7040 mono_mb_emit_ldloc (mb, 0);
7041 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7042 mono_mb_emit_byte (mb, CEE_LDNULL);
7043 mono_mb_emit_stloc (mb, 3);
7044 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7046 mono_mb_patch_branch (mb, pos);
7049 mono_mb_emit_ldloc (mb, 0);
7050 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7051 mono_mb_emit_stloc (mb, 0);
7053 /* Allocate and set dest */
7054 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7055 mono_mb_emit_byte (mb, CEE_CONV_I);
7056 mono_mb_emit_icall (mb, mono_marshal_alloc);
7057 mono_mb_emit_byte (mb, CEE_DUP);
7058 mono_mb_emit_stloc (mb, 1);
7059 mono_mb_emit_stloc (mb, 3);
7061 emit_struct_conv (mb, klass, FALSE);
7063 mono_mb_patch_branch (mb, pos2);
7067 g_assert_not_reached ();
7074 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7075 MonoMarshalSpec *spec,
7076 int conv_arg, MonoType **conv_arg_type,
7077 MarshalAction action)
7079 MonoMethodBuilder *mb = m->mb;
7080 MonoClass *klass = t->data.klass;
7081 static MonoMethod* get_object_for_iunknown = NULL;
7082 static MonoMethod* get_iunknown_for_object_internal = NULL;
7083 static MonoMethod* get_com_interface_for_object_internal = NULL;
7084 static MonoMethod* get_idispatch_for_object_internal = NULL;
7085 static MonoMethod* marshal_release = NULL;
7086 static MonoMethod* AddRef = NULL;
7087 if (!get_object_for_iunknown)
7088 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7089 if (!get_iunknown_for_object_internal)
7090 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7091 if (!get_idispatch_for_object_internal)
7092 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7093 if (!get_com_interface_for_object_internal)
7094 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7095 if (!marshal_release)
7096 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7098 /* COM types are initialized lazily */
7099 mono_init_com_types ();
7102 case MARSHAL_ACTION_CONV_IN: {
7103 guint32 pos_null = 0;
7105 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7106 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7108 mono_mb_emit_ptr (mb, NULL);
7109 mono_mb_emit_stloc (mb, conv_arg);
7111 /* we dont need any conversions for out parameters */
7112 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7115 mono_mb_emit_ldarg (mb, argnum);
7117 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7118 /* if null just break, conv arg was already inited to 0 */
7119 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7121 mono_mb_emit_ldarg (mb, argnum);
7123 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7125 if (klass && klass != mono_defaults.object_class) {
7126 mono_mb_emit_ptr (mb, t);
7127 mono_mb_emit_icall (mb, type_from_handle);
7128 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7130 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7131 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7132 else if (spec->native == MONO_NATIVE_IDISPATCH)
7133 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7134 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7135 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7137 g_assert_not_reached ();
7138 mono_mb_emit_stloc (mb, conv_arg);
7139 mono_mb_patch_short_branch (mb, pos_null);
7143 case MARSHAL_ACTION_CONV_OUT: {
7144 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7146 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7147 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7149 mono_mb_emit_ldarg (mb, argnum);
7150 mono_mb_emit_byte (mb, CEE_LDNULL);
7151 mono_mb_emit_byte (mb, CEE_STIND_REF);
7153 mono_mb_emit_ldloc (mb, conv_arg);
7154 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7156 mono_mb_emit_ldloc (mb, conv_arg);
7157 mono_mb_emit_icon (mb, TRUE);
7158 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7159 mono_mb_emit_stloc (mb, ccw_obj);
7160 mono_mb_emit_ldloc (mb, ccw_obj);
7161 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7163 mono_mb_emit_ldarg (mb, argnum);
7164 mono_mb_emit_ldloc (mb, conv_arg);
7165 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7167 if (klass && klass != mono_defaults.object_class)
7168 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7169 mono_mb_emit_byte (mb, CEE_STIND_REF);
7171 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7173 /* is already managed object */
7174 mono_mb_patch_short_branch (mb, pos_ccw);
7175 mono_mb_emit_ldarg (mb, argnum);
7176 mono_mb_emit_ldloc (mb, ccw_obj);
7178 if (klass && klass != mono_defaults.object_class)
7179 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7180 mono_mb_emit_byte (mb, CEE_STIND_REF);
7182 mono_mb_patch_short_branch (mb, pos_end);
7184 /* need to call Release to follow COM rules of ownership */
7185 mono_mb_emit_ldloc (mb, conv_arg);
7186 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7187 mono_mb_emit_byte (mb, CEE_POP);
7190 mono_mb_patch_short_branch (mb, pos_null);
7194 case MARSHAL_ACTION_PUSH:
7196 mono_mb_emit_ldloc_addr (mb, conv_arg);
7198 mono_mb_emit_ldloc (mb, conv_arg);
7201 case MARSHAL_ACTION_CONV_RESULT: {
7202 int ccw_obj, ret_ptr;
7203 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7204 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7205 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7207 /* store return value */
7208 mono_mb_emit_stloc (mb, ret_ptr);
7210 mono_mb_emit_ldloc (mb, ret_ptr);
7211 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7213 mono_mb_emit_ldloc (mb, ret_ptr);
7214 mono_mb_emit_icon (mb, TRUE);
7215 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7216 mono_mb_emit_stloc (mb, ccw_obj);
7217 mono_mb_emit_ldloc (mb, ccw_obj);
7218 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7220 mono_mb_emit_ldloc (mb, ret_ptr);
7221 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7223 if (klass && klass != mono_defaults.object_class)
7224 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7225 mono_mb_emit_stloc (mb, 3);
7227 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7229 /* is already managed object */
7230 mono_mb_patch_short_branch (mb, pos_ccw);
7231 mono_mb_emit_ldloc (mb, ccw_obj);
7233 if (klass && klass != mono_defaults.object_class)
7234 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7235 mono_mb_emit_stloc (mb, 3);
7237 mono_mb_patch_short_branch (mb, pos_end);
7239 /* need to call Release to follow COM rules of ownership */
7240 mono_mb_emit_ldloc (mb, ret_ptr);
7241 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7242 mono_mb_emit_byte (mb, CEE_POP);
7245 mono_mb_patch_short_branch (mb, pos_null);
7249 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7251 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7252 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7254 klass = mono_class_from_mono_type (t);
7255 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7256 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7258 mono_mb_emit_byte (mb, CEE_LDNULL);
7259 mono_mb_emit_stloc (mb, conv_arg);
7260 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7263 mono_mb_emit_ldarg (mb, argnum);
7265 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7266 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7268 mono_mb_emit_ldarg (mb, argnum);
7270 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7271 mono_mb_emit_icon (mb, TRUE);
7272 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7273 mono_mb_emit_stloc (mb, ccw_obj);
7274 mono_mb_emit_ldloc (mb, ccw_obj);
7275 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7278 mono_mb_emit_ldarg (mb, argnum);
7280 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7281 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7283 if (klass && klass != mono_defaults.object_class)
7284 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7285 mono_mb_emit_stloc (mb, conv_arg);
7286 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7288 /* is already managed object */
7289 mono_mb_patch_short_branch (mb, pos_ccw);
7290 mono_mb_emit_ldloc (mb, ccw_obj);
7291 if (klass && klass != mono_defaults.object_class)
7292 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7293 mono_mb_emit_stloc (mb, conv_arg);
7295 mono_mb_patch_short_branch (mb, pos_end);
7297 mono_mb_patch_short_branch (mb, pos_null);
7301 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7302 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7303 guint32 pos_null = 0;
7306 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7308 mono_mb_emit_ldloc (mb, conv_arg);
7309 /* if null just break, conv arg was already inited to 0 */
7310 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7312 /* to store later */
7313 mono_mb_emit_ldarg (mb, argnum);
7314 mono_mb_emit_ldloc (mb, conv_arg);
7315 if (klass && klass != mono_defaults.object_class) {
7316 mono_mb_emit_ptr (mb, t);
7317 mono_mb_emit_icall (mb, type_from_handle);
7318 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7320 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7321 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7322 else if (spec->native == MONO_NATIVE_IDISPATCH)
7323 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7324 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7325 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7327 g_assert_not_reached ();
7328 mono_mb_emit_byte (mb, CEE_STIND_I);
7330 mono_mb_emit_ldarg (mb, argnum);
7331 mono_mb_emit_byte (mb, CEE_LDIND_I);
7332 mono_mb_emit_managed_call (mb, AddRef, NULL);
7333 mono_mb_emit_byte (mb, CEE_POP);
7335 mono_mb_patch_short_branch (mb, pos_null);
7340 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7341 guint32 pos_null = 0;
7343 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7346 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7348 /* store return value */
7349 mono_mb_emit_stloc (mb, ccw_obj);
7351 mono_mb_emit_ldloc (mb, ccw_obj);
7353 /* if null just break, conv arg was already inited to 0 */
7354 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7356 /* to store later */
7357 mono_mb_emit_ldloc (mb, ccw_obj);
7358 if (klass && klass != mono_defaults.object_class) {
7359 mono_mb_emit_ptr (mb, t);
7360 mono_mb_emit_icall (mb, type_from_handle);
7361 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7363 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7364 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7365 else if (spec->native == MONO_NATIVE_IDISPATCH)
7366 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7367 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7368 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7370 g_assert_not_reached ();
7371 mono_mb_emit_stloc (mb, 3);
7372 mono_mb_emit_ldloc (mb, 3);
7374 mono_mb_emit_managed_call (mb, AddRef, NULL);
7375 mono_mb_emit_byte (mb, CEE_POP);
7377 mono_mb_patch_short_branch (mb, pos_null);
7382 g_assert_not_reached ();
7389 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7390 MonoMarshalSpec *spec,
7391 int conv_arg, MonoType **conv_arg_type,
7392 MarshalAction action)
7394 MonoMethodBuilder *mb = m->mb;
7395 static MonoMethod *get_object_for_native_variant = NULL;
7396 static MonoMethod *get_native_variant_for_object = NULL;
7398 mono_init_com_types ();
7400 if (!get_object_for_native_variant)
7401 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7402 g_assert (get_object_for_native_variant);
7404 if (!get_native_variant_for_object)
7405 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7406 g_assert (get_native_variant_for_object);
7409 case MARSHAL_ACTION_CONV_IN: {
7410 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7413 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7415 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7417 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN))
7420 mono_mb_emit_ldarg (mb, argnum);
7422 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7423 mono_mb_emit_ldloc_addr (mb, conv_arg);
7424 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7428 case MARSHAL_ACTION_CONV_OUT: {
7429 static MonoMethod *variant_clear = NULL;
7432 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7433 g_assert (variant_clear);
7436 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7437 mono_mb_emit_ldarg (mb, argnum);
7438 mono_mb_emit_ldloc_addr (mb, conv_arg);
7439 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7440 mono_mb_emit_byte (mb, CEE_STIND_REF);
7443 mono_mb_emit_ldloc_addr (mb, conv_arg);
7444 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7448 case MARSHAL_ACTION_PUSH:
7450 mono_mb_emit_ldloc_addr (mb, conv_arg);
7452 mono_mb_emit_ldloc (mb, conv_arg);
7455 case MARSHAL_ACTION_CONV_RESULT: {
7456 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7457 mono_mb_emit_exception_marshal_directive (mb, msg);
7461 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7462 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7465 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7467 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7469 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN))
7473 mono_mb_emit_ldarg (mb, argnum);
7475 mono_mb_emit_ldarg_addr (mb, argnum);
7476 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7477 mono_mb_emit_stloc (mb, conv_arg);
7481 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7482 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7483 mono_mb_emit_ldloc (mb, conv_arg);
7484 mono_mb_emit_ldarg (mb, argnum);
7485 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7490 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7491 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7492 mono_mb_emit_exception_marshal_directive (mb, msg);
7497 g_assert_not_reached ();
7504 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7505 MonoMarshalSpec *spec,
7506 int conv_arg, MonoType **conv_arg_type,
7507 MarshalAction action)
7509 MonoMethodBuilder *mb = m->mb;
7510 MonoClass *klass = mono_class_from_mono_type (t);
7511 gboolean need_convert, need_free;
7512 MonoMarshalNative encoding;
7514 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7517 case MARSHAL_ACTION_CONV_IN:
7518 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7519 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7521 if (klass->element_class->blittable) {
7522 mono_mb_emit_ldarg (mb, argnum);
7524 mono_mb_emit_byte (mb, CEE_LDIND_I);
7525 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7526 mono_mb_emit_stloc (mb, conv_arg);
7529 guint32 label1, label2, label3;
7530 int index_var, src_var, dest_ptr, esize;
7531 MonoMarshalConv conv;
7532 gboolean is_string = FALSE;
7534 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7536 eklass = klass->element_class;
7538 if (eklass == mono_defaults.string_class) {
7540 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7542 else if (eklass == mono_defaults.stringbuilder_class) {
7544 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7549 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7550 mono_mb_emit_ldarg (mb, argnum);
7552 mono_mb_emit_byte (mb, CEE_LDIND_I);
7553 mono_mb_emit_stloc (mb, src_var);
7556 mono_mb_emit_ldloc (mb, src_var);
7557 mono_mb_emit_stloc (mb, conv_arg);
7558 mono_mb_emit_ldloc (mb, src_var);
7559 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7563 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7564 MonoException *exc = mono_get_exception_not_implemented (msg);
7567 mono_raise_exception (exc);
7572 esize = sizeof (gpointer);
7574 esize = mono_class_native_size (eklass, NULL);
7576 /* allocate space for the native struct and store the address */
7577 mono_mb_emit_icon (mb, esize);
7578 mono_mb_emit_ldloc (mb, src_var);
7579 mono_mb_emit_byte (mb, CEE_LDLEN);
7581 if (eklass == mono_defaults.string_class) {
7582 /* Make the array bigger for the terminating null */
7583 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7584 mono_mb_emit_byte (mb, CEE_ADD);
7586 mono_mb_emit_byte (mb, CEE_MUL);
7587 mono_mb_emit_byte (mb, CEE_PREFIX1);
7588 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7589 mono_mb_emit_stloc (mb, conv_arg);
7591 mono_mb_emit_ldloc (mb, conv_arg);
7592 mono_mb_emit_stloc (mb, dest_ptr);
7594 /* Emit marshalling loop */
7595 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7596 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7597 mono_mb_emit_stloc (mb, index_var);
7598 label2 = mono_mb_get_label (mb);
7599 mono_mb_emit_ldloc (mb, index_var);
7600 mono_mb_emit_ldloc (mb, src_var);
7601 mono_mb_emit_byte (mb, CEE_LDLEN);
7602 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7604 /* Emit marshalling code */
7607 mono_mb_emit_ldloc (mb, dest_ptr);
7608 mono_mb_emit_ldloc (mb, src_var);
7609 mono_mb_emit_ldloc (mb, index_var);
7610 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7611 mono_mb_emit_icall (mb, conv_to_icall (conv));
7612 mono_mb_emit_byte (mb, CEE_STIND_I);
7614 /* set the src_ptr */
7615 mono_mb_emit_ldloc (mb, src_var);
7616 mono_mb_emit_ldloc (mb, index_var);
7617 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7618 mono_mb_emit_stloc (mb, 0);
7621 mono_mb_emit_ldloc (mb, dest_ptr);
7622 mono_mb_emit_stloc (mb, 1);
7624 /* emit valuetype conversion code */
7625 emit_struct_conv (mb, eklass, FALSE);
7628 mono_mb_emit_add_to_local (mb, index_var, 1);
7629 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7631 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7633 mono_mb_patch_branch (mb, label3);
7635 if (eklass == mono_defaults.string_class) {
7636 /* Null terminate */
7637 mono_mb_emit_ldloc (mb, dest_ptr);
7638 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7639 mono_mb_emit_byte (mb, CEE_STIND_REF);
7642 mono_mb_patch_branch (mb, label1);
7647 case MARSHAL_ACTION_CONV_OUT:
7648 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7649 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);
7650 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7653 if (need_convert || need_free) {
7654 /* FIXME: Optimize blittable case */
7656 guint32 label1, label2, label3;
7657 int index_var, src_ptr, loc, esize;
7659 eklass = klass->element_class;
7660 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7661 esize = sizeof (gpointer);
7663 esize = mono_class_native_size (eklass, NULL);
7664 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7665 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7668 mono_mb_emit_ldarg (mb, argnum);
7670 mono_mb_emit_byte (mb, CEE_LDIND_I);
7671 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7673 mono_mb_emit_ldloc (mb, conv_arg);
7674 mono_mb_emit_stloc (mb, src_ptr);
7676 /* Emit marshalling loop */
7677 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7678 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7679 mono_mb_emit_stloc (mb, index_var);
7680 label2 = mono_mb_get_label (mb);
7681 mono_mb_emit_ldloc (mb, index_var);
7682 mono_mb_emit_ldarg (mb, argnum);
7684 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7685 mono_mb_emit_byte (mb, CEE_LDLEN);
7686 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7688 /* Emit marshalling code */
7690 if (eklass == mono_defaults.stringbuilder_class) {
7691 gboolean need_free2;
7692 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7694 g_assert (conv != -1);
7697 mono_mb_emit_ldarg (mb, argnum);
7699 mono_mb_emit_byte (mb, CEE_LDIND_I);
7700 mono_mb_emit_ldloc (mb, index_var);
7701 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7704 mono_mb_emit_ldloc (mb, src_ptr);
7705 mono_mb_emit_byte (mb, CEE_LDIND_I);
7707 mono_mb_emit_icall (mb, conv_to_icall (conv));
7711 mono_mb_emit_ldloc (mb, src_ptr);
7712 mono_mb_emit_byte (mb, CEE_LDIND_I);
7714 mono_mb_emit_icall (mb, mono_marshal_free);
7717 else if (eklass == mono_defaults.string_class) {
7720 mono_mb_emit_ldloc (mb, src_ptr);
7721 mono_mb_emit_byte (mb, CEE_LDIND_I);
7723 mono_mb_emit_icall (mb, mono_marshal_free);
7728 /* set the src_ptr */
7729 mono_mb_emit_ldloc (mb, src_ptr);
7730 mono_mb_emit_stloc (mb, 0);
7733 mono_mb_emit_ldarg (mb, argnum);
7735 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7736 mono_mb_emit_ldloc (mb, index_var);
7737 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7738 mono_mb_emit_stloc (mb, 1);
7740 /* emit valuetype conversion code */
7741 emit_struct_conv (mb, eklass, TRUE);
7745 mono_mb_emit_ldloc (mb, src_ptr);
7746 mono_mb_emit_stloc (mb, loc);
7747 mono_mb_emit_ldloc (mb, loc);
7749 emit_struct_free (mb, eklass, loc);
7753 mono_mb_emit_add_to_local (mb, index_var, 1);
7754 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7756 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7758 mono_mb_patch_branch (mb, label1);
7759 mono_mb_patch_branch (mb, label3);
7763 case MARSHAL_ACTION_PUSH:
7765 mono_mb_emit_ldloc_addr (mb, conv_arg);
7767 mono_mb_emit_ldloc (mb, conv_arg);
7770 case MARSHAL_ACTION_CONV_RESULT:
7771 /* fixme: we need conversions here */
7772 mono_mb_emit_stloc (mb, 3);
7775 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7777 guint32 label1, label2, label3;
7778 int index_var, src_ptr, loc, esize, param_num, num_elem;
7779 MonoMarshalConv conv;
7780 gboolean is_string = FALSE;
7782 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7783 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7786 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7787 mono_mb_emit_exception_marshal_directive (mb, msg);
7791 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7792 mono_mb_emit_exception_marshal_directive (mb, msg);
7795 if (spec->native != MONO_NATIVE_LPARRAY) {
7796 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7797 mono_mb_emit_exception_marshal_directive (mb, msg);
7801 /* FIXME: t is from the method which is wrapped, not the delegate type */
7802 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7804 param_num = spec->data.array_data.param_num;
7805 num_elem = spec->data.array_data.num_elem;
7806 if (spec->data.array_data.elem_mult == 0)
7807 /* param_num is not specified */
7810 if (param_num == -1) {
7811 if (num_elem <= 0) {
7812 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7813 mono_mb_emit_exception_marshal_directive (mb, msg);
7818 /* FIXME: Optimize blittable case */
7820 eklass = klass->element_class;
7821 if (eklass == mono_defaults.string_class) {
7823 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7825 else if (eklass == mono_defaults.stringbuilder_class) {
7827 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7832 mono_marshal_load_type_info (eklass);
7835 esize = sizeof (gpointer);
7837 esize = mono_class_native_size (eklass, NULL);
7838 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7839 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7841 mono_mb_emit_byte (mb, CEE_LDNULL);
7842 mono_mb_emit_stloc (mb, conv_arg);
7844 /* Check param index */
7845 if (param_num != -1) {
7846 if (param_num >= m->sig->param_count) {
7847 char *msg = g_strdup ("Array size control parameter index is out of range.");
7848 mono_mb_emit_exception_marshal_directive (mb, msg);
7851 switch (m->sig->params [param_num]->type) {
7864 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7865 mono_mb_emit_exception_marshal_directive (mb, msg);
7872 mono_mb_emit_ldarg (mb, argnum);
7873 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7875 mono_mb_emit_ldarg (mb, argnum);
7876 mono_mb_emit_stloc (mb, src_ptr);
7878 /* Create managed array */
7880 * The LPArray marshalling spec says that sometimes param_num starts
7881 * from 1, sometimes it starts from 0. But MS seems to allways start
7885 if (param_num == -1)
7886 mono_mb_emit_icon (mb, num_elem);
7888 /* FIXME: Add the two together */
7889 mono_mb_emit_ldarg (mb, param_num);
7891 mono_mb_emit_icon (mb, num_elem);
7892 mono_mb_emit_byte (mb, CEE_ADD);
7896 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7897 mono_mb_emit_stloc (mb, conv_arg);
7899 if (eklass->blittable) {
7900 mono_mb_emit_ldloc (mb, conv_arg);
7901 mono_mb_emit_byte (mb, CEE_CONV_I);
7902 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7903 mono_mb_emit_byte (mb, CEE_ADD);
7904 mono_mb_emit_ldarg (mb, argnum);
7905 mono_mb_emit_ldloc (mb, conv_arg);
7906 mono_mb_emit_byte (mb, CEE_LDLEN);
7907 mono_mb_emit_icon (mb, esize);
7908 mono_mb_emit_byte (mb, CEE_MUL);
7909 mono_mb_emit_byte (mb, CEE_PREFIX1);
7910 mono_mb_emit_byte (mb, CEE_CPBLK);
7914 /* Emit marshalling loop */
7915 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7916 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7917 mono_mb_emit_stloc (mb, index_var);
7918 label2 = mono_mb_get_label (mb);
7919 mono_mb_emit_ldloc (mb, index_var);
7920 mono_mb_emit_ldloc (mb, conv_arg);
7921 mono_mb_emit_byte (mb, CEE_LDLEN);
7922 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7924 /* Emit marshalling code */
7926 g_assert (conv != -1);
7928 mono_mb_emit_ldloc (mb, conv_arg);
7929 mono_mb_emit_ldloc (mb, index_var);
7931 mono_mb_emit_ldloc (mb, src_ptr);
7932 mono_mb_emit_byte (mb, CEE_LDIND_I);
7934 mono_mb_emit_icall (mb, conv_to_icall (conv));
7935 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7938 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7939 mono_mb_emit_exception_marshal_directive (mb, msg);
7943 mono_mb_emit_add_to_local (mb, index_var, 1);
7944 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7946 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7948 mono_mb_patch_branch (mb, label1);
7949 mono_mb_patch_branch (mb, label3);
7953 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7955 guint32 label1, label2, label3;
7956 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7957 MonoMarshalConv conv;
7958 gboolean is_string = FALSE;
7961 /* Already handled in CONV_IN */
7964 /* These are already checked in CONV_IN */
7965 g_assert (!t->byref);
7966 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7967 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7969 param_num = spec->data.array_data.param_num;
7970 num_elem = spec->data.array_data.num_elem;
7972 if (spec->data.array_data.elem_mult == 0)
7973 /* param_num is not specified */
7976 if (param_num == -1) {
7977 if (num_elem <= 0) {
7978 g_assert_not_reached ();
7982 /* FIXME: Optimize blittable case */
7984 eklass = klass->element_class;
7985 if (eklass == mono_defaults.string_class) {
7987 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7989 else if (eklass == mono_defaults.stringbuilder_class) {
7991 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7996 mono_marshal_load_type_info (eklass);
7999 esize = sizeof (gpointer);
8001 esize = mono_class_native_size (eklass, NULL);
8003 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8004 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8007 mono_mb_emit_ldloc (mb, conv_arg);
8008 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8010 mono_mb_emit_ldarg (mb, argnum);
8011 mono_mb_emit_stloc (mb, dest_ptr);
8013 if (eklass->blittable) {
8015 mono_mb_emit_ldarg (mb, argnum);
8017 mono_mb_emit_ldloc (mb, conv_arg);
8018 mono_mb_emit_byte (mb, CEE_CONV_I);
8019 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
8020 mono_mb_emit_byte (mb, CEE_ADD);
8022 mono_mb_emit_ldloc (mb, conv_arg);
8023 mono_mb_emit_byte (mb, CEE_LDLEN);
8024 mono_mb_emit_icon (mb, esize);
8025 mono_mb_emit_byte (mb, CEE_MUL);
8026 mono_mb_emit_byte (mb, CEE_PREFIX1);
8027 mono_mb_emit_byte (mb, CEE_CPBLK);
8031 /* Emit marshalling loop */
8032 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8033 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8034 mono_mb_emit_stloc (mb, index_var);
8035 label2 = mono_mb_get_label (mb);
8036 mono_mb_emit_ldloc (mb, index_var);
8037 mono_mb_emit_ldloc (mb, conv_arg);
8038 mono_mb_emit_byte (mb, CEE_LDLEN);
8039 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8041 /* Emit marshalling code */
8043 g_assert (conv != -1);
8046 mono_mb_emit_ldloc (mb, dest_ptr);
8049 mono_mb_emit_ldloc (mb, conv_arg);
8050 mono_mb_emit_ldloc (mb, index_var);
8052 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8054 mono_mb_emit_icall (mb, conv_to_icall (conv));
8055 mono_mb_emit_byte (mb, CEE_STIND_I);
8058 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8059 mono_mb_emit_exception_marshal_directive (mb, msg);
8063 mono_mb_emit_add_to_local (mb, index_var, 1);
8064 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8066 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8068 mono_mb_patch_branch (mb, label1);
8069 mono_mb_patch_branch (mb, label3);
8073 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8075 guint32 label1, label2, label3;
8076 int index_var, src, dest, esize;
8077 MonoMarshalConv conv = -1;
8078 gboolean is_string = FALSE;
8080 g_assert (!t->byref);
8082 eklass = klass->element_class;
8084 mono_marshal_load_type_info (eklass);
8086 if (eklass == mono_defaults.string_class) {
8088 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8091 g_assert_not_reached ();
8095 esize = sizeof (gpointer);
8097 esize = mono_class_native_size (eklass, NULL);
8099 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8100 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8102 mono_mb_emit_stloc (mb, src);
8103 mono_mb_emit_ldloc (mb, src);
8104 mono_mb_emit_stloc (mb, 3);
8106 /* Check for null */
8107 mono_mb_emit_ldloc (mb, src);
8108 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8110 /* Allocate native array */
8111 mono_mb_emit_icon (mb, esize);
8112 mono_mb_emit_ldloc (mb, src);
8113 mono_mb_emit_byte (mb, CEE_LDLEN);
8115 if (eklass == mono_defaults.string_class) {
8116 /* Make the array bigger for the terminating null */
8117 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8118 mono_mb_emit_byte (mb, CEE_ADD);
8120 mono_mb_emit_byte (mb, CEE_MUL);
8121 mono_mb_emit_icall (mb, mono_marshal_alloc);
8122 mono_mb_emit_stloc (mb, dest);
8123 mono_mb_emit_ldloc (mb, dest);
8124 mono_mb_emit_stloc (mb, 3);
8126 /* Emit marshalling loop */
8127 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8128 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8129 mono_mb_emit_stloc (mb, index_var);
8130 label2 = mono_mb_get_label (mb);
8131 mono_mb_emit_ldloc (mb, index_var);
8132 mono_mb_emit_ldloc (mb, src);
8133 mono_mb_emit_byte (mb, CEE_LDLEN);
8134 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8136 /* Emit marshalling code */
8138 g_assert (conv != -1);
8141 mono_mb_emit_ldloc (mb, dest);
8144 mono_mb_emit_ldloc (mb, src);
8145 mono_mb_emit_ldloc (mb, index_var);
8147 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8149 mono_mb_emit_icall (mb, conv_to_icall (conv));
8150 mono_mb_emit_byte (mb, CEE_STIND_I);
8153 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8154 mono_mb_emit_exception_marshal_directive (mb, msg);
8158 mono_mb_emit_add_to_local (mb, index_var, 1);
8159 mono_mb_emit_add_to_local (mb, dest, esize);
8161 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8163 mono_mb_patch_branch (mb, label3);
8164 mono_mb_patch_branch (mb, label1);
8168 g_assert_not_reached ();
8175 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8176 MonoMarshalSpec *spec,
8177 int conv_arg, MonoType **conv_arg_type,
8178 MarshalAction action)
8180 MonoMethodBuilder *mb = m->mb;
8183 case MARSHAL_ACTION_CONV_IN: {
8184 MonoType *local_type;
8185 int variant_bool = 0;
8189 local_type = &mono_defaults.int32_class->byval_arg;
8191 switch (spec->native) {
8192 case MONO_NATIVE_I1:
8193 case MONO_NATIVE_U1:
8194 local_type = &mono_defaults.byte_class->byval_arg;
8196 case MONO_NATIVE_VARIANTBOOL:
8197 local_type = &mono_defaults.int16_class->byval_arg;
8201 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8202 local_type = &mono_defaults.int32_class->byval_arg;
8206 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8207 conv_arg = mono_mb_add_local (mb, local_type);
8208 mono_mb_emit_ldarg (mb, argnum);
8209 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8211 mono_mb_emit_byte (mb, CEE_NEG);
8212 mono_mb_emit_stloc (mb, conv_arg);
8216 case MARSHAL_ACTION_CONV_OUT:
8219 mono_mb_emit_ldarg (mb, argnum);
8220 mono_mb_emit_ldloc (mb, conv_arg);
8221 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8222 mono_mb_emit_byte (mb, CEE_NEG);
8223 mono_mb_emit_byte (mb, CEE_STIND_I1);
8226 case MARSHAL_ACTION_PUSH:
8228 mono_mb_emit_ldloc_addr (mb, conv_arg);
8230 mono_mb_emit_ldarg (mb, argnum);
8233 case MARSHAL_ACTION_CONV_RESULT:
8234 /* maybe we need to make sure that it fits within 8 bits */
8235 mono_mb_emit_stloc (mb, 3);
8239 g_assert_not_reached ();
8246 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8247 MonoMarshalSpec *spec, int conv_arg,
8248 MonoType **conv_arg_type, MarshalAction action)
8250 MonoMethodBuilder *mb = m->mb;
8253 case MARSHAL_ACTION_CONV_IN:
8254 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8255 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8256 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8260 case MARSHAL_ACTION_PUSH:
8261 mono_mb_emit_ldarg (mb, argnum);
8264 case MARSHAL_ACTION_CONV_RESULT:
8265 /* no conversions necessary */
8266 mono_mb_emit_stloc (mb, 3);
8277 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8278 MonoMarshalSpec *spec, int conv_arg,
8279 MonoType **conv_arg_type, MarshalAction action)
8281 MonoMethodBuilder *mb = m->mb;
8284 case MARSHAL_ACTION_PUSH:
8285 /* fixme: dont know how to marshal that. We cant simply
8286 * convert it to a one byte UTF8 character, because an
8287 * unicode character may need more that one byte in UTF8 */
8288 mono_mb_emit_ldarg (mb, argnum);
8291 case MARSHAL_ACTION_CONV_RESULT:
8292 /* fixme: we need conversions here */
8293 mono_mb_emit_stloc (mb, 3);
8304 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8305 MonoMarshalSpec *spec, int conv_arg,
8306 MonoType **conv_arg_type, MarshalAction action)
8308 MonoMethodBuilder *mb = m->mb;
8311 case MARSHAL_ACTION_PUSH:
8312 mono_mb_emit_ldarg (mb, argnum);
8315 case MARSHAL_ACTION_CONV_RESULT:
8316 /* no conversions necessary */
8317 mono_mb_emit_stloc (mb, 3);
8328 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8329 MonoMarshalSpec *spec, int conv_arg,
8330 MonoType **conv_arg_type, MarshalAction action)
8332 /* Ensure that we have marshalling info for this param */
8333 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8335 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8336 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8338 if (spec && spec->native == MONO_NATIVE_ASANY)
8339 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8342 case MONO_TYPE_VALUETYPE:
8343 if (t->data.klass == mono_defaults.handleref_class)
8344 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8346 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8347 case MONO_TYPE_STRING:
8348 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8349 case MONO_TYPE_CLASS:
8350 case MONO_TYPE_OBJECT:
8351 if (spec && spec->native == MONO_NATIVE_STRUCT)
8352 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8354 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8355 spec->native == MONO_NATIVE_IDISPATCH ||
8356 spec->native == MONO_NATIVE_INTERFACE))
8357 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8359 if (mono_defaults.safehandle_class != NULL &&
8360 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8361 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8363 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8364 case MONO_TYPE_ARRAY:
8365 case MONO_TYPE_SZARRAY:
8366 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8367 case MONO_TYPE_BOOLEAN:
8368 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8370 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8371 case MONO_TYPE_CHAR:
8372 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8385 case MONO_TYPE_FNPTR:
8386 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8393 * mono_marshal_emit_native_wrapper:
8394 * @image: the image to use for looking up custom marshallers
8395 * @sig: The signature of the native function
8396 * @piinfo: Marshalling information
8397 * @mspecs: Marshalling information
8398 * @func: the native function to call
8399 * @check_exceptions: Whenever to check for pending exceptions after the native call
8401 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8404 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions)
8406 EmitMarshalContext m;
8407 MonoMethodSignature *csig;
8409 int i, argnum, *tmp_locals;
8411 static MonoMethodSignature *get_last_error_sig = NULL;
8416 /* we copy the signature, so that we can set pinvoke to 0 */
8417 csig = signature_dup (mb->method->klass->image, sig);
8422 /* we allocate local for use with emit_struct_conv() */
8423 /* allocate local 0 (pointer) src_ptr */
8424 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8425 /* allocate local 1 (pointer) dst_ptr */
8426 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8427 /* allocate local 2 (boolean) delete_old */
8428 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8430 /* delete_old = FALSE */
8431 mono_mb_emit_icon (mb, 0);
8432 mono_mb_emit_stloc (mb, 2);
8434 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8435 /* allocate local 3 to store the return value */
8436 mono_mb_add_local (mb, sig->ret);
8439 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8440 /* Return type custom marshaling */
8442 * Since we can't determine the return type of the unmanaged function,
8443 * we assume it returns a pointer, and pass that pointer to
8444 * MarshalNativeToManaged.
8446 csig->ret = &mono_defaults.int_class->byval_arg;
8449 /* we first do all conversions */
8450 tmp_locals = alloca (sizeof (int) * sig->param_count);
8451 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8453 for (i = 0; i < sig->param_count; i ++) {
8454 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8457 /* push all arguments */
8460 mono_mb_emit_byte (mb, CEE_LDARG_0);
8463 for (i = 0; i < sig->param_count; i++) {
8464 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8467 /* call the native method */
8468 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8469 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8472 mono_mb_emit_native_call (mb, csig, func);
8475 /* Set LastError if needed */
8476 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8477 if (!get_last_error_sig) {
8478 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8479 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8480 get_last_error_sig->pinvoke = 1;
8483 #ifdef PLATFORM_WIN32
8485 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8486 * clobber its value.
8488 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8489 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8491 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8495 /* convert the result */
8496 if (!sig->ret->byref) {
8497 MonoMarshalSpec *spec = mspecs [0];
8498 type = sig->ret->type;
8500 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8501 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8506 case MONO_TYPE_VOID:
8508 case MONO_TYPE_VALUETYPE:
8509 klass = sig->ret->data.klass;
8510 if (klass->enumtype) {
8511 type = sig->ret->data.klass->enum_basetype->type;
8514 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8528 case MONO_TYPE_FNPTR:
8529 case MONO_TYPE_STRING:
8530 case MONO_TYPE_CLASS:
8531 case MONO_TYPE_OBJECT:
8532 case MONO_TYPE_BOOLEAN:
8533 case MONO_TYPE_ARRAY:
8534 case MONO_TYPE_SZARRAY:
8535 case MONO_TYPE_CHAR:
8537 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8539 case MONO_TYPE_TYPEDBYREF:
8541 g_warning ("return type 0x%02x unknown", sig->ret->type);
8542 g_assert_not_reached ();
8546 mono_mb_emit_stloc (mb, 3);
8550 * Need to call this after converting the result since MONO_VTADDR needs
8551 * to be adjacent to the call instruction.
8553 if (check_exceptions)
8554 emit_thread_interrupt_checkpoint (mb);
8556 /* we need to convert byref arguments back and free string arrays */
8557 for (i = 0; i < sig->param_count; i++) {
8558 MonoType *t = sig->params [i];
8559 MonoMarshalSpec *spec = mspecs [i + 1];
8561 argnum = i + sig->hasthis;
8563 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8564 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8569 case MONO_TYPE_STRING:
8570 case MONO_TYPE_VALUETYPE:
8571 case MONO_TYPE_CLASS:
8572 case MONO_TYPE_OBJECT:
8573 case MONO_TYPE_SZARRAY:
8574 case MONO_TYPE_BOOLEAN:
8575 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8580 if (!MONO_TYPE_IS_VOID(sig->ret))
8581 mono_mb_emit_ldloc (mb, 3);
8583 mono_mb_emit_byte (mb, CEE_RET);
8587 * mono_marshal_get_native_wrapper:
8588 * @method: The MonoMethod to wrap.
8589 * @check_exceptions: Whenever to check for pending exceptions
8591 * generates IL code for the pinvoke wrapper (the generated method
8592 * calls the unmanaged code in piinfo->addr)
8595 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8597 MonoMethodSignature *sig, *csig;
8598 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8599 MonoMethodBuilder *mb;
8600 MonoMarshalSpec **mspecs;
8603 gboolean pinvoke = FALSE;
8606 const char *exc_class = "MissingMethodException";
8607 const char *exc_arg = NULL;
8609 g_assert (method != NULL);
8610 g_assert (mono_method_signature (method)->pinvoke);
8612 cache = method->klass->image->native_wrapper_cache;
8613 if ((res = mono_marshal_find_in_cache (cache, method)))
8616 if (MONO_CLASS_IS_IMPORT (method->klass))
8617 return cominterop_get_native_wrapper (method);
8619 sig = mono_method_signature (method);
8621 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8622 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8625 if (!piinfo->addr) {
8627 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8628 exc_arg = "Method contains unsupported native code";
8630 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8632 piinfo->addr = mono_lookup_internal_call (method);
8635 /* hack - redirect certain string constructors to CreateString */
8636 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8637 g_assert (!pinvoke);
8638 g_assert (method->string_ctor);
8639 g_assert (sig->hasthis);
8641 /* CreateString returns a value */
8642 csig = signature_dup (method->klass->image, sig);
8643 csig->ret = &mono_defaults.string_class->byval_arg;
8647 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8648 if (!strcmp ("CreateString", res->name) &&
8649 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8651 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8652 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8654 /* create a wrapper to preserve .ctor in stack trace */
8655 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8657 mono_mb_emit_byte (mb, CEE_LDARG_0);
8658 for (i = 1; i <= csig->param_count; i++)
8659 mono_mb_emit_ldarg (mb, i);
8660 mono_mb_emit_managed_call (mb, res, NULL);
8661 mono_mb_emit_byte (mb, CEE_RET);
8663 /* use native_wrapper_cache because internal calls are looked up there */
8664 res = mono_mb_create_and_cache (cache, method,
8665 mb, csig, csig->param_count + 1);
8673 /* exception will be thrown */
8674 piinfo->addr = NULL;
8675 g_warning ("cannot find CreateString for .ctor");
8678 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8680 mb->method->save_lmf = 1;
8683 * In AOT mode and embedding scenarios, it is possible that the icall is not
8684 * registered in the runtime doing the AOT compilation.
8686 if (!piinfo->addr && !aot) {
8687 mono_mb_emit_exception (mb, exc_class, exc_arg);
8688 csig = signature_dup (method->klass->image, sig);
8690 res = mono_mb_create_and_cache (cache, method,
8691 mb, csig, csig->param_count + 16);
8696 /* internal calls: we simply push all arguments and call the method (no conversions) */
8697 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8699 /* hack - string constructors returns a value */
8700 if (method->string_ctor) {
8701 csig = signature_dup (method->klass->image, sig);
8702 csig->ret = &mono_defaults.string_class->byval_arg;
8707 mono_mb_emit_byte (mb, CEE_LDARG_0);
8709 for (i = 0; i < sig->param_count; i++)
8710 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8713 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8714 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8715 mono_mb_emit_calli (mb, csig);
8717 g_assert (piinfo->addr);
8718 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8720 if (check_exceptions)
8721 emit_thread_interrupt_checkpoint (mb);
8722 mono_mb_emit_byte (mb, CEE_RET);
8724 csig = signature_dup (method->klass->image, csig);
8726 res = mono_mb_create_and_cache (cache, method,
8727 mb, csig, csig->param_count + 16);
8733 g_assert (piinfo->addr);
8735 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8736 mono_method_get_marshal_info (method, mspecs);
8738 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, check_exceptions);
8740 csig = signature_dup (method->klass->image, sig);
8742 res = mono_mb_create_and_cache (cache, method,
8743 mb, csig, csig->param_count + 16);
8746 for (i = sig->param_count; i >= 0; i--)
8748 mono_metadata_free_marshal_spec (mspecs [i]);
8751 /* 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)); */
8757 * mono_marshal_get_native_func_wrapper:
8758 * @image: The image to use for memory allocation and for looking up custom marshallers.
8759 * @sig: The signature of the function
8760 * @func: The native function to wrap
8762 * Returns a wrapper method around native functions, similar to the pinvoke
8766 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8767 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8769 MonoMethodSignature *csig;
8771 MonoMethodBuilder *mb;
8776 cache = image->native_wrapper_cache;
8777 if ((res = mono_marshal_find_in_cache (cache, func)))
8780 name = g_strdup_printf ("wrapper_native_%p", func);
8781 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8782 mb->method->save_lmf = 1;
8784 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, TRUE);
8786 csig = signature_dup (image, sig);
8788 res = mono_mb_create_and_cache (cache, func,
8789 mb, csig, csig->param_count + 16);
8792 /* 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)); */
8797 /* FIXME: moving GC */
8799 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8801 MonoMethodSignature *sig, *csig;
8807 /* allocate local 0 (pointer) src_ptr */
8808 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8809 /* allocate local 1 (pointer) dst_ptr */
8810 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8811 /* allocate local 2 (boolean) delete_old */
8812 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8814 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8815 /* allocate local 3 to store the return value */
8816 mono_mb_add_local (mb, sig->ret);
8819 mono_mb_emit_icon (mb, 0);
8820 mono_mb_emit_stloc (mb, 2);
8822 /* we first do all conversions */
8823 tmp_locals = alloca (sizeof (int) * sig->param_count);
8824 for (i = 0; i < sig->param_count; i ++) {
8825 MonoType *t = sig->params [i];
8828 case MONO_TYPE_OBJECT:
8829 case MONO_TYPE_CLASS:
8830 case MONO_TYPE_VALUETYPE:
8831 case MONO_TYPE_ARRAY:
8832 case MONO_TYPE_SZARRAY:
8833 case MONO_TYPE_STRING:
8834 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8843 emit_thread_interrupt_checkpoint (mb);
8845 /* fixme: howto handle this ? */
8848 /* FIXME: need a solution for the moving GC here */
8849 mono_mb_emit_ptr (mb, this);
8852 g_assert_not_reached ();
8856 for (i = 0; i < sig->param_count; i++) {
8857 MonoType *t = sig->params [i];
8859 if (tmp_locals [i]) {
8861 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8863 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8866 mono_mb_emit_ldarg (mb, i);
8869 mono_mb_emit_managed_call (mb, method, NULL);
8871 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8872 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8875 if (!sig->ret->byref) {
8876 switch (sig->ret->type) {
8877 case MONO_TYPE_VOID:
8879 case MONO_TYPE_BOOLEAN:
8893 case MONO_TYPE_OBJECT:
8894 mono_mb_emit_stloc (mb, 3);
8896 case MONO_TYPE_STRING:
8897 csig->ret = &mono_defaults.int_class->byval_arg;
8898 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8900 case MONO_TYPE_VALUETYPE:
8901 case MONO_TYPE_CLASS:
8902 case MONO_TYPE_SZARRAY:
8903 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8906 g_warning ("return type 0x%02x unknown", sig->ret->type);
8907 g_assert_not_reached ();
8910 mono_mb_emit_stloc (mb, 3);
8913 /* Convert byref arguments back */
8914 for (i = 0; i < sig->param_count; i ++) {
8915 MonoType *t = sig->params [i];
8916 MonoMarshalSpec *spec = mspecs [i + 1];
8918 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8919 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8921 else if (t->byref) {
8923 case MONO_TYPE_CLASS:
8924 case MONO_TYPE_VALUETYPE:
8925 case MONO_TYPE_OBJECT:
8926 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8930 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8931 /* The [Out] information is encoded in the delegate signature */
8933 case MONO_TYPE_SZARRAY:
8934 case MONO_TYPE_CLASS:
8935 case MONO_TYPE_VALUETYPE:
8936 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8939 g_assert_not_reached ();
8944 if (m->retobj_var) {
8945 mono_mb_emit_ldloc (mb, m->retobj_var);
8946 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8947 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8950 if (!MONO_TYPE_IS_VOID(sig->ret))
8951 mono_mb_emit_ldloc (mb, 3);
8952 mono_mb_emit_byte (mb, CEE_RET);
8958 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8960 MonoMethodSignature *sig;
8963 #ifdef PLATFORM_WIN32
8965 * Under windows, delegates passed to native code must use the STDCALL
8966 * calling convention.
8968 csig->call_convention = MONO_CALL_STDCALL;
8971 sig = mono_method_signature (method);
8973 /* Change default calling convention if needed */
8974 /* Why is this a modopt ? */
8975 if (sig->ret && sig->ret->num_mods) {
8976 for (i = 0; i < sig->ret->num_mods; ++i) {
8977 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8978 g_assert (cmod_class);
8979 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8980 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8981 csig->call_convention = MONO_CALL_C;
8982 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8983 csig->call_convention = MONO_CALL_STDCALL;
8984 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8985 csig->call_convention = MONO_CALL_FASTCALL;
8986 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8987 csig->call_convention = MONO_CALL_THISCALL;
8994 * generates IL code to call managed methods from unmanaged code
8997 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8999 static MonoClass *UnmanagedFunctionPointerAttribute;
9000 MonoMethodSignature *sig, *csig, *invoke_sig;
9001 MonoMethodBuilder *mb;
9002 MonoMethod *res, *invoke;
9003 MonoMarshalSpec **mspecs;
9004 MonoMethodPInvoke piinfo;
9007 EmitMarshalContext m;
9009 g_assert (method != NULL);
9010 g_assert (!mono_method_signature (method)->pinvoke);
9013 * FIXME: Should cache the method+delegate type pair, since the same method
9014 * could be called with different delegates, thus different marshalling
9017 cache = method->klass->image->managed_wrapper_cache;
9018 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
9021 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
9022 invoke_sig = mono_method_signature (invoke);
9024 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9025 mono_method_get_marshal_info (invoke, mspecs);
9027 sig = mono_method_signature (method);
9029 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9032 /* we copy the signature, so that we can modify it */
9034 /* Need to free this later */
9035 csig = mono_metadata_signature_dup (sig);
9037 csig = signature_dup (method->klass->image, sig);
9046 m.image = method->klass->image;
9048 mono_marshal_set_callconv_from_modopt (invoke, csig);
9050 /* Handle the UnmanagedFunctionPointerAttribute */
9051 if (!UnmanagedFunctionPointerAttribute)
9052 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9054 /* The attribute is only available in Net 2.0 */
9055 if (UnmanagedFunctionPointerAttribute) {
9056 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9057 MonoCustomAttrInfo *cinfo;
9060 * The pinvoke attributes are stored in a real custom attribute so we have to
9063 cinfo = mono_custom_attrs_from_class (delegate_klass);
9065 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9067 memset (&piinfo, 0, sizeof (piinfo));
9069 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9071 csig->call_convention = attr->call_conv - 1;
9074 mono_custom_attrs_free (cinfo);
9078 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9081 res = mono_mb_create_and_cache (cache, method,
9082 mb, csig, sig->param_count + 16);
9085 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9089 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9091 mono_metadata_free_marshal_spec (mspecs [i]);
9094 /* 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)); */
9100 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9103 MonoMethodSignature *sig;
9104 MonoMethodBuilder *mb;
9109 method = mono_get_method (image, token, NULL);
9112 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9113 MonoMethodSignature *csig;
9114 MonoMarshalSpec **mspecs;
9115 EmitMarshalContext m;
9117 sig = mono_method_signature (method);
9118 g_assert (!sig->hasthis);
9120 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9121 mono_method_get_marshal_info (method, mspecs);
9123 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9124 csig = signature_dup (image, sig);
9135 mono_marshal_set_callconv_from_modopt (method, csig);
9137 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9139 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
9142 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9145 for (i = sig->param_count; i >= 0; i--)
9147 mono_metadata_free_marshal_spec (mspecs [i]);
9150 return mono_compile_method (method);
9153 sig = mono_method_signature (method);
9154 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9156 param_count = sig->param_count + sig->hasthis;
9157 for (i = 0; i < param_count; i++)
9158 mono_mb_emit_ldarg (mb, i);
9160 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9161 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9163 mono_mb_emit_op (mb, CEE_CALL, method);
9164 mono_mb_emit_byte (mb, CEE_RET);
9167 method = mono_mb_create_method (mb, sig, param_count);
9170 return mono_compile_method (method);
9173 static MonoReflectionType *
9174 type_from_handle (MonoType *handle)
9176 MonoDomain *domain = mono_domain_get ();
9177 MonoClass *klass = mono_class_from_mono_type (handle);
9179 MONO_ARCH_SAVE_REGS;
9181 mono_class_init (klass);
9182 return mono_type_get_object (domain, handle);
9186 * mono_marshal_get_isinst:
9187 * @klass: the type of the field
9189 * This method generates a function which can be used to check if an object is
9190 * an instance of the given type, icluding the case where the object is a proxy.
9191 * The generated function has the following signature:
9192 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9195 mono_marshal_get_isinst (MonoClass *klass)
9197 static MonoMethodSignature *isint_sig = NULL;
9200 int pos_was_ok, pos_failed, pos_end, pos_end2;
9202 MonoMethodBuilder *mb;
9204 cache = klass->image->isinst_cache;
9205 if ((res = mono_marshal_find_in_cache (cache, klass)))
9209 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9210 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9211 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9212 isint_sig->pinvoke = 0;
9215 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9216 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9219 mb->method->save_lmf = 1;
9221 /* check if the object is a proxy that needs special cast */
9222 mono_mb_emit_ldarg (mb, 0);
9223 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9224 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9226 /* The result of MONO_ISINST can be:
9227 0) the type check succeeded
9228 1) the type check did not succeed
9229 2) a CanCastTo call is needed */
9231 mono_mb_emit_byte (mb, CEE_DUP);
9232 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9234 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9235 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9237 /* get the real proxy from the transparent proxy*/
9239 mono_mb_emit_ldarg (mb, 0);
9240 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9241 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9245 mono_mb_patch_branch (mb, pos_failed);
9246 mono_mb_emit_byte (mb, CEE_LDNULL);
9247 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9251 mono_mb_patch_branch (mb, pos_was_ok);
9252 mono_mb_emit_byte (mb, CEE_POP);
9253 mono_mb_emit_ldarg (mb, 0);
9257 mono_mb_patch_branch (mb, pos_end);
9258 mono_mb_patch_branch (mb, pos_end2);
9259 mono_mb_emit_byte (mb, CEE_RET);
9261 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9268 * mono_marshal_get_castclass:
9269 * @klass: the type of the field
9271 * This method generates a function which can be used to cast an object to
9272 * an instance of the given type, icluding the case where the object is a proxy.
9273 * The generated function has the following signature:
9274 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9277 mono_marshal_get_castclass (MonoClass *klass)
9279 static MonoMethodSignature *castclass_sig = NULL;
9282 int pos_was_ok, pos_was_ok2;
9284 MonoMethodBuilder *mb;
9286 cache = klass->image->castclass_cache;
9287 if ((res = mono_marshal_find_in_cache (cache, klass)))
9290 if (!castclass_sig) {
9291 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9292 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9293 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9294 castclass_sig->pinvoke = 0;
9297 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9298 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9301 mb->method->save_lmf = 1;
9303 /* check if the object is a proxy that needs special cast */
9304 mono_mb_emit_ldarg (mb, 0);
9305 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9306 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9308 /* The result of MONO_ISINST can be:
9309 0) the cast is valid
9310 1) cast of unknown proxy type
9311 or an exception if the cast is is invalid
9314 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9316 /* get the real proxy from the transparent proxy*/
9318 mono_mb_emit_ldarg (mb, 0);
9319 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9320 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9323 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9326 mono_mb_patch_branch (mb, pos_was_ok);
9327 mono_mb_patch_branch (mb, pos_was_ok2);
9328 mono_mb_emit_ldarg (mb, 0);
9331 mono_mb_emit_byte (mb, CEE_RET);
9333 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9340 mono_marshal_get_proxy_cancast (MonoClass *klass)
9342 static MonoMethodSignature *isint_sig = NULL;
9345 int pos_failed, pos_end;
9347 MonoMethod *can_cast_to;
9348 MonoMethodDesc *desc;
9349 MonoMethodBuilder *mb;
9351 cache = klass->image->proxy_isinst_cache;
9352 if ((res = mono_marshal_find_in_cache (cache, klass)))
9356 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9357 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9358 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9359 isint_sig->pinvoke = 0;
9362 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9363 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9366 mb->method->save_lmf = 1;
9368 /* get the real proxy from the transparent proxy*/
9369 mono_mb_emit_ldarg (mb, 0);
9370 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9371 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9373 /* get the reflection type from the type handle */
9374 mono_mb_emit_ptr (mb, &klass->byval_arg);
9375 mono_mb_emit_icall (mb, type_from_handle);
9377 mono_mb_emit_ldarg (mb, 0);
9379 /* make the call to CanCastTo (type, ob) */
9380 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9381 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9382 g_assert (can_cast_to);
9383 mono_method_desc_free (desc);
9384 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9386 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9388 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9389 mono_mb_emit_ptr (mb, &klass->byval_arg);
9390 mono_mb_emit_icall (mb, type_from_handle);
9391 mono_mb_emit_ldarg (mb, 0);
9393 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9394 emit_thread_interrupt_checkpoint (mb);
9396 mono_mb_emit_ldarg (mb, 0);
9397 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9401 mono_mb_patch_branch (mb, pos_failed);
9402 mono_mb_emit_byte (mb, CEE_LDNULL);
9406 mono_mb_patch_branch (mb, pos_end);
9407 mono_mb_emit_byte (mb, CEE_RET);
9409 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9416 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9419 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9420 klass = mono_class_from_mono_type (rtype->type);
9421 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9425 * mono_marshal_get_struct_to_ptr:
9428 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9431 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9433 MonoMethodBuilder *mb;
9434 static MonoMethod *stoptr = NULL;
9437 g_assert (klass != NULL);
9439 mono_marshal_load_type_info (klass);
9441 if (klass->marshal_info->str_to_ptr)
9442 return klass->marshal_info->str_to_ptr;
9445 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9448 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9450 if (klass->blittable) {
9451 mono_mb_emit_byte (mb, CEE_LDARG_1);
9452 mono_mb_emit_byte (mb, CEE_LDARG_0);
9453 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9454 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9455 mono_mb_emit_byte (mb, CEE_PREFIX1);
9456 mono_mb_emit_byte (mb, CEE_CPBLK);
9459 /* allocate local 0 (pointer) src_ptr */
9460 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9461 /* allocate local 1 (pointer) dst_ptr */
9462 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9463 /* allocate local 2 (boolean) delete_old */
9464 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9465 mono_mb_emit_byte (mb, CEE_LDARG_2);
9466 mono_mb_emit_stloc (mb, 2);
9468 /* initialize src_ptr to point to the start of object data */
9469 mono_mb_emit_byte (mb, CEE_LDARG_0);
9470 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9471 mono_mb_emit_stloc (mb, 0);
9473 /* initialize dst_ptr */
9474 mono_mb_emit_byte (mb, CEE_LDARG_1);
9475 mono_mb_emit_stloc (mb, 1);
9477 emit_struct_conv (mb, klass, FALSE);
9480 mono_mb_emit_byte (mb, CEE_RET);
9482 res = mono_mb_create_method (mb, signature_no_pinvoke (stoptr), 0);
9485 klass->marshal_info->str_to_ptr = res;
9490 * mono_marshal_get_ptr_to_struct:
9493 * generates IL code for PtrToStructure (IntPtr src, object structure)
9496 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9498 MonoMethodBuilder *mb;
9499 static MonoMethodSignature *ptostr = NULL;
9502 g_assert (klass != NULL);
9504 mono_marshal_load_type_info (klass);
9506 if (klass->marshal_info->ptr_to_str)
9507 return klass->marshal_info->ptr_to_str;
9510 MonoMethodSignature *sig;
9512 /* Create the signature corresponding to
9513 static void PtrToStructure (IntPtr ptr, object structure);
9514 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9515 sig = mono_create_icall_signature ("void ptr object");
9516 sig = signature_dup (mono_defaults.corlib, sig);
9518 mono_memory_barrier ();
9522 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9524 if (klass->blittable) {
9525 mono_mb_emit_byte (mb, CEE_LDARG_1);
9526 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9527 mono_mb_emit_byte (mb, CEE_LDARG_0);
9528 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9529 mono_mb_emit_byte (mb, CEE_PREFIX1);
9530 mono_mb_emit_byte (mb, CEE_CPBLK);
9533 /* allocate local 0 (pointer) src_ptr */
9534 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9535 /* allocate local 1 (pointer) dst_ptr */
9536 mono_mb_add_local (mb, &klass->this_arg);
9538 /* initialize src_ptr to point to the start of object data */
9539 mono_mb_emit_byte (mb, CEE_LDARG_0);
9540 mono_mb_emit_stloc (mb, 0);
9542 /* initialize dst_ptr */
9543 mono_mb_emit_byte (mb, CEE_LDARG_1);
9544 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9545 mono_mb_emit_stloc (mb, 1);
9547 emit_struct_conv (mb, klass, TRUE);
9550 mono_mb_emit_byte (mb, CEE_RET);
9552 res = mono_mb_create_method (mb, ptostr, 0);
9555 klass->marshal_info->ptr_to_str = res;
9560 * generates IL code for the synchronized wrapper: the generated method
9561 * calls METHOD while locking 'this' or the parent type.
9564 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9566 static MonoMethod *enter_method, *exit_method;
9567 MonoMethodSignature *sig;
9568 MonoExceptionClause *clause;
9569 MonoMethodHeader *header;
9570 MonoMethodBuilder *mb;
9573 int i, pos, this_local, ret_local = 0;
9577 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9580 cache = method->klass->image->synchronized_cache;
9581 if ((res = mono_marshal_find_in_cache (cache, method)))
9584 sig = signature_dup (method->klass->image, mono_method_signature (method));
9587 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9590 if (!MONO_TYPE_IS_VOID (sig->ret))
9591 ret_local = mono_mb_add_local (mb, sig->ret);
9593 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9594 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9595 /* This will throw the type load exception when the wrapper is compiled */
9596 mono_mb_emit_byte (mb, CEE_LDNULL);
9597 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9598 mono_mb_emit_byte (mb, CEE_POP);
9600 if (!MONO_TYPE_IS_VOID (sig->ret))
9601 mono_mb_emit_ldloc (mb, ret_local);
9602 mono_mb_emit_byte (mb, CEE_RET);
9604 res = mono_mb_create_and_cache (cache, method,
9605 mb, sig, sig->param_count + 16);
9612 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9614 mono_loader_lock ();
9615 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9616 mono_loader_unlock ();
9617 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9619 if (!enter_method) {
9620 MonoMethodDesc *desc;
9622 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9623 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9624 g_assert (enter_method);
9625 mono_method_desc_free (desc);
9626 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9627 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9628 g_assert (exit_method);
9629 mono_method_desc_free (desc);
9632 /* Push this or the type object */
9633 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9635 * GetTypeFromHandle isn't called as a managed method because it has
9636 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9637 * transformed into something else by the JIT.
9639 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9640 mono_mb_emit_icall (mb, type_from_handle);
9643 mono_mb_emit_ldarg (mb, 0);
9644 mono_mb_emit_stloc (mb, this_local);
9646 /* Call Monitor::Enter() */
9647 mono_mb_emit_ldloc (mb, this_local);
9648 mono_mb_emit_managed_call (mb, enter_method, NULL);
9650 clause->try_offset = mono_mb_get_label (mb);
9652 /* Call the method */
9654 mono_mb_emit_ldarg (mb, 0);
9655 for (i = 0; i < sig->param_count; i++)
9656 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9658 mono_mb_emit_managed_call (mb, method, NULL);
9660 if (!MONO_TYPE_IS_VOID (sig->ret))
9661 mono_mb_emit_stloc (mb, ret_local);
9663 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9665 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9666 clause->handler_offset = mono_mb_get_label (mb);
9668 /* Call Monitor::Exit() */
9669 mono_mb_emit_ldloc (mb, this_local);
9670 mono_mb_emit_managed_call (mb, exit_method, NULL);
9671 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9673 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9675 mono_mb_patch_branch (mb, pos);
9676 if (!MONO_TYPE_IS_VOID (sig->ret))
9677 mono_mb_emit_ldloc (mb, ret_local);
9678 mono_mb_emit_byte (mb, CEE_RET);
9680 res = mono_mb_create_and_cache (cache, method,
9681 mb, sig, sig->param_count + 16);
9684 header = ((MonoMethodNormal *)res)->header;
9685 header->num_clauses = 1;
9686 header->clauses = clause;
9693 * the returned method calls 'method' unboxing the this argument
9696 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9698 MonoMethodSignature *sig = mono_method_signature (method);
9700 MonoMethodBuilder *mb;
9704 cache = method->klass->image->unbox_wrapper_cache;
9705 if ((res = mono_marshal_find_in_cache (cache, method)))
9708 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9710 g_assert (sig->hasthis);
9712 mono_mb_emit_ldarg (mb, 0);
9713 mono_mb_emit_icon (mb, sizeof (MonoObject));
9714 mono_mb_emit_byte (mb, CEE_ADD);
9715 for (i = 0; i < sig->param_count; ++i)
9716 mono_mb_emit_ldarg (mb, i + 1);
9717 mono_mb_emit_managed_call (mb, method, NULL);
9718 mono_mb_emit_byte (mb, CEE_RET);
9720 res = mono_mb_create_and_cache (cache, method,
9721 mb, sig, sig->param_count + 16);
9724 /* 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)); */
9730 mono_marshal_get_stelemref ()
9732 static MonoMethod* ret = NULL;
9733 MonoMethodSignature *sig;
9734 MonoMethodBuilder *mb;
9736 guint32 b1, b2, b3, b4;
9739 int array_slot_addr;
9744 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9747 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9749 /* void stelemref (void* array, int idx, void* value) */
9750 sig->ret = &mono_defaults.void_class->byval_arg;
9751 sig->params [0] = &mono_defaults.object_class->byval_arg;
9752 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9753 sig->params [2] = &mono_defaults.object_class->byval_arg;
9755 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9756 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9757 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9761 <ldelema (bound check)>
9765 aklass = array->vtable->klass->element_class;
9766 vklass = value->vtable->klass;
9768 if (vklass->idepth < aklass->idepth)
9771 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9775 *array_slot_addr = value;
9779 if (mono_object_isinst (value, aklass))
9782 throw new ArrayTypeMismatchException ();
9785 /* ldelema (implicit bound check) */
9786 mono_mb_emit_ldarg (mb, 0);
9787 mono_mb_emit_ldarg (mb, 1);
9788 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9789 mono_mb_emit_stloc (mb, array_slot_addr);
9791 /* if (!value) goto do_store */
9792 mono_mb_emit_ldarg (mb, 2);
9793 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9795 /* aklass = array->vtable->klass->element_class */
9796 mono_mb_emit_ldarg (mb, 0);
9797 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9798 mono_mb_emit_byte (mb, CEE_LDIND_I);
9799 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9800 mono_mb_emit_byte (mb, CEE_LDIND_I);
9801 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9802 mono_mb_emit_byte (mb, CEE_LDIND_I);
9803 mono_mb_emit_stloc (mb, aklass);
9805 /* vklass = value->vtable->klass */
9806 mono_mb_emit_ldarg (mb, 2);
9807 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9808 mono_mb_emit_byte (mb, CEE_LDIND_I);
9809 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9810 mono_mb_emit_byte (mb, CEE_LDIND_I);
9811 mono_mb_emit_stloc (mb, vklass);
9813 /* if (vklass->idepth < aklass->idepth) goto failue */
9814 mono_mb_emit_ldloc (mb, vklass);
9815 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9816 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9818 mono_mb_emit_ldloc (mb, aklass);
9819 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9820 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9822 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9824 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9825 mono_mb_emit_ldloc (mb, vklass);
9826 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9827 mono_mb_emit_byte (mb, CEE_LDIND_I);
9829 mono_mb_emit_ldloc (mb, aklass);
9830 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9831 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9832 mono_mb_emit_icon (mb, 1);
9833 mono_mb_emit_byte (mb, CEE_SUB);
9834 mono_mb_emit_icon (mb, sizeof (void*));
9835 mono_mb_emit_byte (mb, CEE_MUL);
9836 mono_mb_emit_byte (mb, CEE_ADD);
9837 mono_mb_emit_byte (mb, CEE_LDIND_I);
9839 mono_mb_emit_ldloc (mb, aklass);
9841 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9843 copy_pos = mono_mb_get_label (mb);
9845 mono_mb_patch_branch (mb, b1);
9846 mono_mb_emit_ldloc (mb, array_slot_addr);
9847 mono_mb_emit_ldarg (mb, 2);
9848 mono_mb_emit_byte (mb, CEE_STIND_REF);
9850 mono_mb_emit_byte (mb, CEE_RET);
9853 mono_mb_patch_branch (mb, b2);
9854 mono_mb_patch_branch (mb, b3);
9856 mono_mb_emit_ldarg (mb, 2);
9857 mono_mb_emit_ldloc (mb, aklass);
9858 mono_mb_emit_icall (mb, mono_object_isinst);
9860 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9861 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9862 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9864 mono_mb_emit_byte (mb, CEE_RET);
9865 ret = mono_mb_create_method (mb, sig, 4);
9876 /* LOCKING: vars accessed under the marshal lock */
9877 static ArrayElemAddr *elem_addr_cache = NULL;
9878 static int elem_addr_cache_size = 0;
9879 static int elem_addr_cache_next = 0;
9882 * mono_marshal_get_array_address:
9883 * @rank: rank of the array type
9884 * @elem_size: size in bytes of an element of an array.
9886 * Returns a MonoMethd that implements the code to get the address
9887 * of an element in a multi-dimenasional array of @rank dimensions.
9888 * The returned method takes an array as the first argument and then
9889 * @rank indexes for the @rank dimensions.
9892 mono_marshal_get_array_address (int rank, int elem_size)
9895 MonoMethodBuilder *mb;
9896 MonoMethodSignature *sig;
9897 int i, bounds, ind, realidx;
9898 int branch_pos, *branch_positions;
9902 mono_marshal_lock ();
9903 for (i = 0; i < elem_addr_cache_next; ++i) {
9904 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9905 ret = elem_addr_cache [i].method;
9909 mono_marshal_unlock ();
9913 branch_positions = g_new0 (int, rank);
9915 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9917 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9918 sig->ret = &mono_defaults.int_class->byval_arg;
9919 sig->params [0] = &mono_defaults.object_class->byval_arg;
9920 for (i = 0; i < rank; ++i) {
9921 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9924 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9926 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9927 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9928 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9930 /* bounds = array->bounds; */
9931 mono_mb_emit_ldarg (mb, 0);
9932 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9933 mono_mb_emit_byte (mb, CEE_LDIND_I);
9934 mono_mb_emit_stloc (mb, bounds);
9936 /* ind is the overall element index, realidx is the partial index in a single dimension */
9937 /* ind = idx0 - bounds [0].lower_bound */
9938 mono_mb_emit_ldarg (mb, 1);
9939 mono_mb_emit_ldloc (mb, bounds);
9940 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9941 mono_mb_emit_byte (mb, CEE_ADD);
9942 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9943 mono_mb_emit_byte (mb, CEE_SUB);
9944 mono_mb_emit_stloc (mb, ind);
9945 /* if (ind >= bounds [0].length) goto exeception; */
9946 mono_mb_emit_ldloc (mb, ind);
9947 mono_mb_emit_ldloc (mb, bounds);
9948 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9949 mono_mb_emit_byte (mb, CEE_ADD);
9950 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9951 /* note that we use unsigned comparison */
9952 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9954 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9955 * We could also decide to ignore the passed elem_size and get it
9956 * from the array object, to reduce the number of methods we generate:
9957 * the additional cost is 3 memory loads and a non-immediate mul.
9959 for (i = 1; i < rank; ++i) {
9960 /* realidx = idxi - bounds [i].lower_bound */
9961 mono_mb_emit_ldarg (mb, 1 + i);
9962 mono_mb_emit_ldloc (mb, bounds);
9963 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9964 mono_mb_emit_byte (mb, CEE_ADD);
9965 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9966 mono_mb_emit_byte (mb, CEE_SUB);
9967 mono_mb_emit_stloc (mb, realidx);
9968 /* if (realidx >= bounds [i].length) goto exeception; */
9969 mono_mb_emit_ldloc (mb, realidx);
9970 mono_mb_emit_ldloc (mb, bounds);
9971 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9972 mono_mb_emit_byte (mb, CEE_ADD);
9973 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9974 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9975 /* ind = ind * bounds [i].length + realidx */
9976 mono_mb_emit_ldloc (mb, ind);
9977 mono_mb_emit_ldloc (mb, bounds);
9978 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9979 mono_mb_emit_byte (mb, CEE_ADD);
9980 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9981 mono_mb_emit_byte (mb, CEE_MUL);
9982 mono_mb_emit_ldloc (mb, realidx);
9983 mono_mb_emit_byte (mb, CEE_ADD);
9984 mono_mb_emit_stloc (mb, ind);
9987 /* return array->vector + ind * element_size */
9988 mono_mb_emit_ldarg (mb, 0);
9989 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9990 mono_mb_emit_ldloc (mb, ind);
9991 mono_mb_emit_icon (mb, elem_size);
9992 mono_mb_emit_byte (mb, CEE_MUL);
9993 mono_mb_emit_byte (mb, CEE_ADD);
9994 mono_mb_emit_byte (mb, CEE_RET);
9996 /* patch the branches to get here and throw */
9997 for (i = 1; i < rank; ++i) {
9998 mono_mb_patch_branch (mb, branch_positions [i]);
10000 mono_mb_patch_branch (mb, branch_pos);
10001 /* throw exception */
10002 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10004 g_free (branch_positions);
10005 ret = mono_mb_create_method (mb, sig, 4);
10008 /* cache the result */
10010 mono_marshal_lock ();
10011 for (i = 0; i < elem_addr_cache_next; ++i) {
10012 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10013 /* FIXME: free ret */
10014 ret = elem_addr_cache [i].method;
10020 if (elem_addr_cache_next >= elem_addr_cache_size) {
10021 int new_size = elem_addr_cache_size + 4;
10022 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10023 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10024 g_free (elem_addr_cache);
10025 elem_addr_cache = new_array;
10026 elem_addr_cache_size = new_size;
10028 elem_addr_cache [elem_addr_cache_next].rank = rank;
10029 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10030 elem_addr_cache [elem_addr_cache_next].method = ret;
10032 mono_marshal_unlock ();
10037 mono_marshal_get_write_barrier (void)
10039 static MonoMethod* ret = NULL;
10040 MonoMethodSignature *sig;
10041 MonoMethodBuilder *mb;
10047 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
10049 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10051 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
10052 sig->ret = &mono_defaults.void_class->byval_arg;
10053 sig->params [0] = &mono_defaults.object_class->this_arg;
10054 sig->params [1] = &mono_defaults.object_class->byval_arg;
10056 /* just the store right now: add an hook for the GC to use, maybe something
10057 * that can be used for stelemref as well
10058 * We need a write barrier variant to be used with struct copies as well, though
10059 * there are also other approaches possible, like writing a wrapper specific to
10060 * the struct or to the reference pattern in the struct...
10061 * Depending on the GC, we may want variants that take the object we store to
10062 * when it is available.
10064 mono_mb_emit_ldarg (mb, 0);
10065 mono_mb_emit_ldarg (mb, 1);
10066 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
10067 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
10069 mono_mb_emit_byte (mb, CEE_RET);
10071 ret = mono_mb_create_method (mb, sig, max_stack);
10077 mono_marshal_alloc (gulong size)
10081 #ifdef PLATFORM_WIN32
10082 res = CoTaskMemAlloc (size);
10084 res = g_try_malloc ((gulong)size);
10086 mono_gc_out_of_memory ((gulong)size);
10092 mono_marshal_free (gpointer ptr)
10094 #ifdef PLATFORM_WIN32
10095 CoTaskMemFree (ptr);
10102 mono_marshal_free_array (gpointer *ptr, int size)
10109 for (i = 0; i < size; i++)
10115 mono_marshal_string_to_utf16 (MonoString *s)
10117 return s ? mono_string_chars (s) : NULL;
10121 mono_marshal_string_to_utf16_copy (MonoString *s)
10126 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10127 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10128 res [mono_string_length (s)] = 0;
10134 * mono_marshal_set_last_error:
10136 * This function is invoked to set the last error value from a P/Invoke call
10137 * which has SetLastError set.
10140 mono_marshal_set_last_error (void)
10143 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10145 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10150 mono_marshal_set_last_error_windows (int error)
10153 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10158 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10159 gpointer dest, gint32 length)
10164 MONO_ARCH_SAVE_REGS;
10166 MONO_CHECK_ARG_NULL (src);
10167 MONO_CHECK_ARG_NULL (dest);
10169 if (src->obj.vtable->klass->rank != 1)
10170 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10171 if (start_index < 0)
10172 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10174 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10175 if (start_index + length > mono_array_length (src))
10176 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10178 element_size = mono_array_element_size (src->obj.vtable->klass);
10180 /* no references should be involved */
10181 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10183 memcpy (dest, source_addr, length * element_size);
10187 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10188 MonoArray *dest, gint32 length)
10193 MONO_ARCH_SAVE_REGS;
10195 MONO_CHECK_ARG_NULL (src);
10196 MONO_CHECK_ARG_NULL (dest);
10198 if (dest->obj.vtable->klass->rank != 1)
10199 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10200 if (start_index < 0)
10201 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10203 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10204 if (start_index + length > mono_array_length (dest))
10205 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10207 element_size = mono_array_element_size (dest->obj.vtable->klass);
10209 /* no references should be involved */
10210 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10212 memcpy (dest_addr, src, length * element_size);
10215 #if NO_UNALIGNED_ACCESS
10216 #define RETURN_UNALIGNED(type, addr) \
10219 memcpy(&val, p + offset, sizeof(val)); \
10222 #define WRITE_UNALIGNED(type, addr, val) \
10223 memcpy(addr, &val, sizeof(type))
10225 #define RETURN_UNALIGNED(type, addr) \
10226 return *(type*)(p + offset);
10227 #define WRITE_UNALIGNED(type, addr, val) \
10228 (*(type *)(addr) = (val))
10232 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10236 MONO_ARCH_SAVE_REGS;
10238 RETURN_UNALIGNED(gpointer, p + offset);
10242 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10246 MONO_ARCH_SAVE_REGS;
10248 return *(unsigned char*)(p + offset);
10252 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10256 MONO_ARCH_SAVE_REGS;
10258 RETURN_UNALIGNED(gint16, p + offset);
10262 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10266 MONO_ARCH_SAVE_REGS;
10268 RETURN_UNALIGNED(gint32, p + offset);
10272 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10276 MONO_ARCH_SAVE_REGS;
10278 RETURN_UNALIGNED(gint64, p + offset);
10282 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10286 MONO_ARCH_SAVE_REGS;
10288 *(unsigned char*)(p + offset) = val;
10292 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10296 MONO_ARCH_SAVE_REGS;
10298 WRITE_UNALIGNED(gpointer, p + offset, val);
10302 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10306 MONO_ARCH_SAVE_REGS;
10308 WRITE_UNALIGNED(gint16, p + offset, val);
10312 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10316 MONO_ARCH_SAVE_REGS;
10318 WRITE_UNALIGNED(gint32, p + offset, val);
10322 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10326 MONO_ARCH_SAVE_REGS;
10328 WRITE_UNALIGNED(gint64, p + offset, val);
10332 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10334 MONO_ARCH_SAVE_REGS;
10339 return mono_string_new (mono_domain_get (), ptr);
10343 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10345 MONO_ARCH_SAVE_REGS;
10348 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10349 g_assert_not_reached ();
10352 return mono_string_new_len (mono_domain_get (), ptr, len);
10357 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10359 MonoDomain *domain = mono_domain_get ();
10363 MONO_ARCH_SAVE_REGS;
10371 return mono_string_new_utf16 (domain, ptr, len);
10375 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10377 MonoDomain *domain = mono_domain_get ();
10379 MONO_ARCH_SAVE_REGS;
10382 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10383 g_assert_not_reached ();
10386 return mono_string_new_utf16 (domain, ptr, len);
10391 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10393 MONO_ARCH_SAVE_REGS;
10395 return mono_string_from_bstr(ptr);
10399 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10401 MONO_ARCH_SAVE_REGS;
10403 return mono_string_to_bstr(ptr);
10408 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10409 int (STDCALL *AddRef)(gpointer pUnk);
10410 int (STDCALL *Release)(gpointer pUnk);
10414 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10416 MONO_ARCH_SAVE_REGS;
10418 mono_free_bstr (ptr);
10422 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10425 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10429 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10432 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10436 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10439 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10443 cominterop_get_idispatch_for_object (MonoObject* object)
10448 if (cominterop_object_is_rcw (object)) {
10449 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10450 mono_defaults.idispatch_class, TRUE);
10453 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10458 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10463 if (cominterop_object_is_rcw (object)) {
10464 MonoClass *klass = NULL;
10465 MonoRealProxy* real_proxy = NULL;
10468 klass = mono_object_class (object);
10469 if (klass != mono_defaults.transparent_proxy_class) {
10470 g_assert_not_reached ();
10474 real_proxy = ((MonoTransparentProxy*)object)->rp;
10476 g_assert_not_reached ();
10480 klass = mono_object_class (real_proxy);
10481 if (klass != mono_defaults.com_interop_proxy_class) {
10482 g_assert_not_reached ();
10486 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10487 g_assert_not_reached ();
10491 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10494 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10499 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10501 MonoObject* object = NULL;
10506 /* see if it is a CCW */
10507 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10513 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10515 return cominterop_get_idispatch_for_object (object);
10519 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10521 MonoClass* klass = NULL;
10524 g_assert (type->type);
10525 klass = mono_type_get_class (type->type);
10527 itf = cominterop_get_ccw (object, klass);
10534 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10536 return (MonoBoolean)cominterop_object_is_rcw (object);
10540 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10542 MonoComInteropProxy* proxy = NULL;
10543 gint32 ref_count = 0;
10546 g_assert (cominterop_object_is_rcw (object));
10548 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10551 ref_count = InterlockedDecrement (&proxy->ref_count);
10552 g_assert (ref_count >= 0);
10554 if (ref_count == 0)
10555 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10561 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10563 MONO_ARCH_SAVE_REGS;
10565 return cominterop_get_com_slot_for_method (m->method);
10569 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10571 MONO_ARCH_SAVE_REGS;
10573 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10577 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10583 MONO_ARCH_SAVE_REGS;
10585 MONO_CHECK_ARG_NULL (rtype);
10587 type = rtype->type;
10588 klass = mono_class_from_mono_type (type);
10589 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10591 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10593 MonoException *exc;
10595 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10596 exc = mono_get_exception_argument ("t", msg);
10598 mono_raise_exception (exc);
10602 return mono_class_native_size (klass, NULL);
10606 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10608 MonoMethod *method;
10611 MONO_ARCH_SAVE_REGS;
10613 MONO_CHECK_ARG_NULL (obj);
10614 MONO_CHECK_ARG_NULL (dst);
10616 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10620 pa [2] = &delete_old;
10622 mono_runtime_invoke (method, NULL, pa, NULL);
10626 ptr_to_structure (gpointer src, MonoObject *dst)
10628 MonoMethod *method;
10631 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10636 mono_runtime_invoke (method, NULL, pa, NULL);
10640 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10644 MONO_ARCH_SAVE_REGS;
10646 MONO_CHECK_ARG_NULL (src);
10647 MONO_CHECK_ARG_NULL (dst);
10649 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10651 if (t->type == MONO_TYPE_VALUETYPE) {
10652 MonoException *exc;
10655 tmp = g_strdup_printf ("Destination is a boxed value type.");
10656 exc = mono_get_exception_argument ("dst", tmp);
10659 mono_raise_exception (exc);
10663 ptr_to_structure (src, dst);
10667 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10669 MonoDomain *domain = mono_domain_get ();
10672 MONO_ARCH_SAVE_REGS;
10674 MONO_CHECK_ARG_NULL (src);
10675 MONO_CHECK_ARG_NULL (type);
10677 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10679 ptr_to_structure (src, res);
10685 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10687 MonoMarshalType *info;
10690 int match_index = -1;
10692 MONO_ARCH_SAVE_REGS;
10694 MONO_CHECK_ARG_NULL (type);
10695 MONO_CHECK_ARG_NULL (field_name);
10697 fname = mono_string_to_utf8 (field_name);
10698 klass = mono_class_from_mono_type (type->type);
10700 while (klass && match_index == -1) {
10701 MonoClassField* field;
10703 gpointer iter = NULL;
10704 while ((field = mono_class_get_fields (klass, &iter))) {
10705 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10707 if (!strcmp (fname, field->name)) {
10714 if (match_index == -1)
10715 klass = klass->parent;
10720 if(match_index == -1) {
10721 MonoException* exc;
10724 /* Get back original class instance */
10725 klass = mono_class_from_mono_type (type->type);
10727 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10728 exc = mono_get_exception_argument ("fieldName", tmp);
10731 mono_raise_exception ((MonoException*)exc);
10734 info = mono_marshal_load_type_info (klass);
10735 return info->fields [match_index].offset;
10739 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10741 #ifdef PLATFORM_WIN32
10744 tres = mono_string_to_utf8 (string);
10748 len = strlen (tres) + 1;
10749 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10750 memcpy (ret, tres, len);
10755 return mono_string_to_utf8 (string);
10760 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10762 MONO_ARCH_SAVE_REGS;
10764 if (string == NULL)
10767 #ifdef PLATFORM_WIN32
10768 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10769 ((mono_string_length (string) + 1) * 2);
10771 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10773 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10774 res [mono_string_length (string)] = 0;
10780 mono_struct_delete_old (MonoClass *klass, char *ptr)
10782 MonoMarshalType *info;
10785 info = mono_marshal_load_type_info (klass);
10787 for (i = 0; i < info->num_fields; i++) {
10788 MonoMarshalNative ntype;
10789 MonoMarshalConv conv;
10790 MonoType *ftype = info->fields [i].field->type;
10793 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10796 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10797 klass->unicode, &conv);
10799 cpos = ptr + info->fields [i].offset;
10802 case MONO_MARSHAL_CONV_NONE:
10803 if (MONO_TYPE_ISSTRUCT (ftype)) {
10804 mono_struct_delete_old (ftype->data.klass, cpos);
10808 case MONO_MARSHAL_CONV_STR_LPWSTR:
10809 /* We assume this field points inside a MonoString */
10811 case MONO_MARSHAL_CONV_STR_LPTSTR:
10812 #ifdef PLATFORM_WIN32
10813 /* We assume this field points inside a MonoString
10817 case MONO_MARSHAL_CONV_STR_LPSTR:
10818 case MONO_MARSHAL_CONV_STR_BSTR:
10819 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10820 case MONO_MARSHAL_CONV_STR_TBSTR:
10821 mono_marshal_free (*(gpointer *)cpos);
10831 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10835 MONO_ARCH_SAVE_REGS;
10837 MONO_CHECK_ARG_NULL (src);
10838 MONO_CHECK_ARG_NULL (type);
10840 klass = mono_class_from_mono_type (type->type);
10842 mono_struct_delete_old (klass, (char *)src);
10846 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10850 MONO_ARCH_SAVE_REGS;
10852 if ((gulong)size == 0)
10853 /* This returns a valid pointer for size 0 on MS.NET */
10856 #ifdef PLATFORM_WIN32
10857 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10859 res = g_try_malloc ((gulong)size);
10862 mono_gc_out_of_memory ((gulong)size);
10868 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10873 mono_gc_out_of_memory ((gulong)size);
10877 #ifdef PLATFORM_WIN32
10878 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10880 res = g_try_realloc (ptr, (gulong)size);
10883 mono_gc_out_of_memory ((gulong)size);
10889 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10891 MONO_ARCH_SAVE_REGS;
10893 #ifdef PLATFORM_WIN32
10901 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10903 MONO_ARCH_SAVE_REGS;
10905 #ifdef PLATFORM_WIN32
10906 return CoTaskMemAlloc (size);
10908 return g_try_malloc ((gulong)size);
10913 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10915 MONO_ARCH_SAVE_REGS;
10917 #ifdef PLATFORM_WIN32
10918 CoTaskMemFree (ptr);
10925 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10927 MONO_ARCH_SAVE_REGS;
10929 #ifdef PLATFORM_WIN32
10930 return CoTaskMemRealloc (ptr, size);
10932 return g_try_realloc (ptr, (gulong)size);
10937 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10939 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10943 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10945 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10948 /* Only used for COM RCWs */
10950 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10953 MonoDomain *domain;
10956 MONO_ARCH_SAVE_REGS;
10958 domain = mono_object_domain (type);
10959 klass = mono_class_from_mono_type (type->type);
10961 /* call mono_object_new_alloc_specific instead of mono_object_new
10962 * because we want to actually create object. mono_object_new checks
10963 * to see if type is import and creates transparent proxy. this method
10964 * is called by the corresponding real proxy to create the real RCW.
10965 * Constructor does not need to be called. Will be called later.
10967 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10972 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10974 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10979 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10982 if (obj->itf_hash) {
10983 guint32 gchandle = 0;
10984 mono_cominterop_lock ();
10985 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10987 mono_gchandle_free (gchandle);
10988 g_hash_table_remove (rcw_hash, obj->iunknown);
10991 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10992 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10993 obj->itf_hash = obj->iunknown = NULL;
10994 mono_cominterop_unlock ();
10999 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
11001 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
11005 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
11007 guint32 gchandle = 0;
11009 mono_cominterop_lock ();
11010 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11011 mono_cominterop_unlock ();
11014 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
11016 mono_cominterop_lock ();
11017 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
11018 mono_cominterop_unlock ();
11021 MonoComInteropProxy*
11022 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
11024 MonoComInteropProxy* proxy = NULL;
11025 guint32 gchandle = 0;
11027 mono_cominterop_lock ();
11029 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
11030 mono_cominterop_unlock ();
11032 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
11033 /* proxy is null means we need to free up old RCW */
11035 mono_gchandle_free (gchandle);
11036 g_hash_table_remove (rcw_hash, pUnk);
11043 * mono_marshal_is_loading_type_info:
11045 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11049 mono_marshal_is_loading_type_info (MonoClass *klass)
11051 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
11053 return g_slist_find (loads_list, klass) != NULL;
11057 * mono_marshal_load_type_info:
11059 * Initialize klass->marshal_info using information from metadata. This function can
11060 * recursively call itself, and the caller is responsible to avoid that by calling
11061 * mono_marshal_is_loading_type_info () beforehand.
11063 * LOCKING: Acquires the loader lock.
11066 mono_marshal_load_type_info (MonoClass* klass)
11069 guint32 native_size = 0, min_align = 1;
11070 MonoMarshalType *info;
11071 MonoClassField* field;
11074 GSList *loads_list;
11076 g_assert (klass != NULL);
11078 if (klass->marshal_info)
11079 return klass->marshal_info;
11081 if (!klass->inited)
11082 mono_class_init (klass);
11084 mono_loader_lock ();
11086 if (klass->marshal_info) {
11087 mono_loader_unlock ();
11088 return klass->marshal_info;
11092 * This function can recursively call itself, so we keep the list of classes which are
11093 * under initialization in a TLS list.
11095 g_assert (!mono_marshal_is_loading_type_info (klass));
11096 loads_list = TlsGetValue (load_type_info_tls_id);
11097 loads_list = g_slist_prepend (loads_list, klass);
11098 TlsSetValue (load_type_info_tls_id, loads_list);
11101 while ((field = mono_class_get_fields (klass, &iter))) {
11102 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11104 if (mono_field_is_deleted (field))
11109 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11111 /* The mempool is protected by the loader lock */
11112 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11113 info->num_fields = count;
11115 /* Try to find a size for this type in metadata */
11116 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11118 if (klass->parent) {
11119 int parent_size = mono_class_native_size (klass->parent, NULL);
11121 /* Add parent size to real size */
11122 native_size += parent_size;
11123 info->native_size = parent_size;
11128 while ((field = mono_class_get_fields (klass, &iter))) {
11132 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11135 if (mono_field_is_deleted (field))
11137 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11138 mono_metadata_field_info_with_mempool (klass->image->mempool, klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11139 NULL, NULL, &info->fields [j].mspec);
11141 info->fields [j].field = field;
11143 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11144 (strcmp (field->name, "$PRIVATE$") == 0)) {
11145 /* This field is a hack inserted by MCS to empty structures */
11150 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11151 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11152 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11153 &align, TRUE, klass->unicode);
11154 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11155 min_align = MAX (align, min_align);
11156 info->fields [j].offset = info->native_size;
11157 info->fields [j].offset += align - 1;
11158 info->fields [j].offset &= ~(align - 1);
11159 info->native_size = info->fields [j].offset + size;
11161 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11162 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11163 &align, TRUE, klass->unicode);
11164 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11165 min_align = MAX (align, min_align);
11166 info->fields [j].offset = field->offset - sizeof (MonoObject);
11167 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11173 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11174 info->native_size = MAX (native_size, info->native_size);
11177 if (info->native_size & (min_align - 1)) {
11178 info->native_size += min_align - 1;
11179 info->native_size &= ~(min_align - 1);
11182 /* Update the class's blittable info, if the layouts don't match */
11183 if (info->native_size != mono_class_value_size (klass, NULL))
11184 klass->blittable = FALSE;
11186 /* If this is an array type, ensure that we have element info */
11187 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11188 mono_marshal_load_type_info (klass->element_class);
11191 loads_list = TlsGetValue (load_type_info_tls_id);
11192 loads_list = g_slist_remove (loads_list, klass);
11193 TlsSetValue (load_type_info_tls_id, loads_list);
11195 /*We do double-checking locking on marshal_info */
11196 mono_memory_barrier ();
11198 klass->marshal_info = info;
11200 mono_loader_unlock ();
11202 return klass->marshal_info;
11206 * mono_class_native_size:
11209 * Returns: the native size of an object instance (when marshaled
11210 * to unmanaged code)
11213 mono_class_native_size (MonoClass *klass, guint32 *align)
11215 if (!klass->marshal_info) {
11216 if (mono_marshal_is_loading_type_info (klass)) {
11221 mono_marshal_load_type_info (klass);
11226 *align = klass->min_align;
11228 return klass->marshal_info->native_size;
11232 * mono_type_native_stack_size:
11233 * @t: the type to return the size it uses on the stack
11235 * Returns: the number of bytes required to hold an instance of this
11236 * type on the native stack
11239 mono_type_native_stack_size (MonoType *t, guint32 *align)
11243 g_assert (t != NULL);
11254 case MONO_TYPE_BOOLEAN:
11255 case MONO_TYPE_CHAR:
11264 case MONO_TYPE_STRING:
11265 case MONO_TYPE_OBJECT:
11266 case MONO_TYPE_CLASS:
11267 case MONO_TYPE_SZARRAY:
11268 case MONO_TYPE_PTR:
11269 case MONO_TYPE_FNPTR:
11270 case MONO_TYPE_ARRAY:
11281 case MONO_TYPE_TYPEDBYREF:
11282 case MONO_TYPE_VALUETYPE: {
11285 if (t->data.klass->enumtype)
11286 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
11288 size = mono_class_native_size (t->data.klass, align);
11289 *align = *align + 3;
11299 g_error ("type 0x%02x unknown", t->type);
11304 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11305 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11306 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11307 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11310 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11311 gboolean as_field, gboolean unicode)
11313 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11316 switch (native_type) {
11317 case MONO_NATIVE_BOOLEAN:
11320 case MONO_NATIVE_I1:
11321 case MONO_NATIVE_U1:
11324 case MONO_NATIVE_I2:
11325 case MONO_NATIVE_U2:
11326 case MONO_NATIVE_VARIANTBOOL:
11329 case MONO_NATIVE_I4:
11330 case MONO_NATIVE_U4:
11331 case MONO_NATIVE_ERROR:
11334 case MONO_NATIVE_I8:
11335 case MONO_NATIVE_U8:
11336 *align = ALIGNMENT(guint64);
11338 case MONO_NATIVE_R4:
11341 case MONO_NATIVE_R8:
11342 *align = ALIGNMENT(double);
11344 case MONO_NATIVE_INT:
11345 case MONO_NATIVE_UINT:
11346 case MONO_NATIVE_LPSTR:
11347 case MONO_NATIVE_LPWSTR:
11348 case MONO_NATIVE_LPTSTR:
11349 case MONO_NATIVE_BSTR:
11350 case MONO_NATIVE_ANSIBSTR:
11351 case MONO_NATIVE_TBSTR:
11352 case MONO_NATIVE_LPARRAY:
11353 case MONO_NATIVE_SAFEARRAY:
11354 case MONO_NATIVE_IUNKNOWN:
11355 case MONO_NATIVE_IDISPATCH:
11356 case MONO_NATIVE_INTERFACE:
11357 case MONO_NATIVE_ASANY:
11358 case MONO_NATIVE_FUNC:
11359 case MONO_NATIVE_LPSTRUCT:
11360 *align = ALIGNMENT(gpointer);
11361 return sizeof (gpointer);
11362 case MONO_NATIVE_STRUCT:
11363 klass = mono_class_from_mono_type (type);
11364 if (klass == mono_defaults.object_class &&
11365 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11369 return mono_class_native_size (klass, align);
11370 case MONO_NATIVE_BYVALTSTR: {
11371 int esize = unicode ? 2: 1;
11374 return mspec->data.array_data.num_elem * esize;
11376 case MONO_NATIVE_BYVALARRAY: {
11377 // FIXME: Have to consider ArraySubType
11379 klass = mono_class_from_mono_type (type);
11380 if (klass->element_class == mono_defaults.char_class) {
11381 esize = unicode ? 2 : 1;
11384 esize = mono_class_native_size (klass->element_class, align);
11387 return mspec->data.array_data.num_elem * esize;
11389 case MONO_NATIVE_CUSTOM:
11390 *align = sizeof (gpointer);
11391 return sizeof (gpointer);
11393 case MONO_NATIVE_CURRENCY:
11394 case MONO_NATIVE_VBBYREFSTR:
11396 g_error ("native type %02x not implemented", native_type);
11399 g_assert_not_reached ();
11404 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11412 t = &o->vtable->klass->byval_arg;
11416 case MONO_TYPE_PTR:
11419 case MONO_TYPE_BOOLEAN:
11422 case MONO_TYPE_CHAR:
11427 return mono_object_unbox (o);
11429 case MONO_TYPE_STRING:
11430 switch (string_encoding) {
11431 case MONO_NATIVE_LPWSTR:
11432 return mono_string_to_utf16 ((MonoString*)o);
11434 case MONO_NATIVE_LPSTR:
11435 return mono_string_to_lpstr ((MonoString*)o);
11438 g_warning ("marshaling conversion %d not implemented", string_encoding);
11439 g_assert_not_reached ();
11442 case MONO_TYPE_CLASS:
11443 case MONO_TYPE_VALUETYPE: {
11444 MonoMethod *method;
11447 MonoBoolean delete_old = FALSE;
11449 klass = t->data.klass;
11451 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11454 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11455 klass->blittable || klass->enumtype))
11456 return mono_object_unbox (o);
11458 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11460 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11461 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11465 pa [2] = &delete_old;
11467 mono_runtime_invoke (method, NULL, pa, NULL);
11474 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11480 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11488 t = &o->vtable->klass->byval_arg;
11490 case MONO_TYPE_STRING:
11491 switch (string_encoding) {
11492 case MONO_NATIVE_LPWSTR:
11493 case MONO_NATIVE_LPSTR:
11494 mono_marshal_free (ptr);
11497 g_warning ("marshaling conversion %d not implemented", string_encoding);
11498 g_assert_not_reached ();
11501 case MONO_TYPE_CLASS:
11502 case MONO_TYPE_VALUETYPE: {
11503 klass = t->data.klass;
11505 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11506 klass->blittable || klass->enumtype))
11509 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11510 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11516 mono_runtime_invoke (method, NULL, pa, NULL);
11519 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11520 mono_struct_delete_old (klass, ptr);
11523 mono_marshal_free (ptr);
11532 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11534 MonoMethodSignature *sig, *csig;
11535 MonoMethodBuilder *mb;
11539 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11540 mb->method->slot = -1;
11542 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11543 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11545 sig = mono_method_signature (method);
11546 csig = signature_dup (method->klass->image, sig);
11547 csig->generic_param_count = 0;
11549 mono_mb_emit_ldarg (mb, 0);
11550 for (i = 0; i < csig->param_count; i++)
11551 mono_mb_emit_ldarg (mb, i + 1);
11552 mono_mb_emit_managed_call (mb, method, NULL);
11553 mono_mb_emit_byte (mb, CEE_RET);
11555 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11557 /* We can corlib internal methods */
11558 res->skip_visibility = TRUE;
11566 * The mono_win32_compat_* functions are implementations of inline
11567 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11568 * although not exported by kernel32.
11570 * We map the appropiate kernel32 entries to these functions using
11571 * dllmaps declared in the global etc/mono/config.
11575 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11577 if (!dest || !source)
11580 memcpy (dest, source, length);
11584 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11586 memset (dest, fill, length);
11590 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11592 if (!dest || !source)
11595 memmove (dest, source, length);
11599 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11601 memset (dest, 0, length);
11604 /* Put COM Interop related stuff here */
11607 * cominterop_get_ccw_object:
11608 * @ccw_entry: a pointer to the CCWEntry
11609 * @verify: verify ccw_entry is in fact a ccw
11611 * Returns: the corresponding object for the CCW
11614 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11616 MonoCCW *ccw = NULL;
11618 /* no CCW's exist yet */
11619 if (!ccw_interface_hash)
11623 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11626 ccw = ccw_entry->ccw;
11630 return mono_gchandle_get_target (ccw->gc_handle);
11636 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11638 MonoMethodSignature *sig, *csig;
11639 sig = mono_method_signature (method);
11640 /* we copy the signature, so that we can modify it */
11641 /* FIXME: which to use? */
11642 csig = signature_dup (method->klass->image, sig);
11643 /* csig = mono_metadata_signature_dup (sig); */
11645 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11646 #ifdef PLATFORM_WIN32
11647 csig->call_convention = MONO_CALL_STDCALL;
11649 csig->call_convention = MONO_CALL_C;
11654 m->image = method->klass->image;
11662 * cominterop_get_ccw:
11663 * @object: a pointer to the object
11664 * @itf: interface type needed
11666 * Returns: a value indicating if the object is a
11667 * Runtime Callable Wrapper (RCW) for a COM object
11670 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11673 MonoCCW *ccw = NULL;
11674 MonoCCWInterface* ccw_entry = NULL;
11675 gpointer *vtable = NULL;
11676 static gpointer iunknown[3] = {NULL, NULL, NULL};
11677 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11678 MonoClass* iface = NULL;
11679 MonoClass* klass = NULL;
11680 EmitMarshalContext m;
11681 int start_slot = 3;
11682 int method_count = 0;
11683 GList *ccw_list, *ccw_list_item;
11684 MonoCustomAttrInfo *cinfo = NULL;
11689 klass = mono_object_get_class (object);
11692 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11693 if (!ccw_interface_hash)
11694 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11696 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11698 ccw_list_item = ccw_list;
11699 while (ccw_list_item) {
11700 MonoCCW* ccw_iter = ccw_list_item->data;
11701 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11705 ccw_list_item = g_list_next(ccw_list_item);
11708 if (!iunknown [0]) {
11709 iunknown [0] = cominterop_ccw_queryinterface;
11710 iunknown [1] = cominterop_ccw_addref;
11711 iunknown [2] = cominterop_ccw_release;
11714 if (!idispatch [0]) {
11715 idispatch [0] = cominterop_ccw_get_type_info_count;
11716 idispatch [1] = cominterop_ccw_get_type_info;
11717 idispatch [2] = cominterop_ccw_get_ids_of_names;
11718 idispatch [3] = cominterop_ccw_invoke;
11722 ccw = g_new0 (MonoCCW, 1);
11723 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11724 ccw->ref_count = 0;
11725 /* just alloc a weak handle until we are addref'd*/
11726 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11729 ccw_list = g_list_alloc ();
11730 ccw_list->data = ccw;
11733 ccw_list = g_list_append (ccw_list, ccw);
11734 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11735 /* register for finalization to clean up ccw */
11736 mono_object_register_finalizer (object);
11739 cinfo = mono_custom_attrs_from_class (itf);
11741 static MonoClass* coclass_attribute = NULL;
11742 if (!coclass_attribute)
11743 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11744 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11745 g_assert(itf->interface_count && itf->interfaces[0]);
11746 itf = itf->interfaces[0];
11748 if (!cinfo->cached)
11749 mono_custom_attrs_free (cinfo);
11753 if (iface == mono_defaults.iunknown_class) {
11756 else if (iface == mono_defaults.idispatch_class) {
11760 method_count += iface->method.count;
11761 start_slot = cominterop_get_com_slot_begin (iface);
11765 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11768 int vtable_index = method_count-1+start_slot;
11769 mono_loader_lock ();
11770 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
11771 mono_loader_unlock ();
11772 memcpy (vtable, iunknown, sizeof (iunknown));
11773 if (start_slot == 7)
11774 memcpy (vtable+3, idispatch, sizeof (idispatch));
11777 for (i = iface->method.count-1; i >= 0;i--) {
11778 int param_index = 0;
11779 MonoMethodBuilder *mb;
11780 MonoMarshalSpec ** mspecs;
11781 MonoMethod *wrapper_method, *adjust_method;
11782 MonoMethod *method = iface->methods [i];
11783 MonoMethodSignature* sig_adjusted;
11784 MonoMethodSignature* sig = mono_method_signature (method);
11785 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11788 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11789 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11790 sig_adjusted = mono_method_signature (adjust_method);
11792 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11793 mono_method_get_marshal_info (method, mspecs);
11796 /* move managed args up one */
11797 for (param_index = sig->param_count; param_index >= 1; param_index--)
11798 mspecs [param_index+1] = mspecs [param_index];
11800 /* first arg is IntPtr for interface */
11803 /* move return spec to last param */
11804 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11805 mspecs [sig_adjusted->param_count] = mspecs [0];
11809 cominterop_setup_marshal_context (&m, adjust_method);
11811 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11812 mono_loader_lock ();
11813 mono_marshal_lock ();
11814 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
11815 mono_marshal_unlock ();
11816 mono_loader_unlock ();
11818 /* skip visiblity since we call internal methods */
11819 wrapper_method->skip_visibility = TRUE;
11821 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11824 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11825 if (mspecs [param_index])
11826 mono_metadata_free_marshal_spec (mspecs [param_index]);
11830 ccw_entry = g_new0 (MonoCCWInterface, 1);
11831 ccw_entry->ccw = ccw;
11832 ccw_entry->vtable = vtable;
11833 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11834 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11841 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11849 * mono_marshal_free_ccw:
11850 * @object: the mono object
11852 * Returns: whether the object had a CCW
11855 mono_marshal_free_ccw (MonoObject* object)
11857 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11858 /* no ccw's were created */
11859 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11862 /* need to cache orig list address to remove from hash_table if empty */
11863 mono_cominterop_lock ();
11864 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11865 mono_cominterop_unlock ();
11870 ccw_list_item = ccw_list;
11871 while (ccw_list_item) {
11872 MonoCCW* ccw_iter = ccw_list_item->data;
11873 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11875 /* Looks like the GC NULLs the weakref handle target before running the
11876 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11877 if (!handle_target || handle_target == object) {
11878 /* remove all interfaces */
11879 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11880 g_hash_table_destroy (ccw_iter->vtable_hash);
11882 /* get next before we delete */
11883 ccw_list_item = g_list_next(ccw_list_item);
11885 /* remove ccw from list */
11886 ccw_list = g_list_remove (ccw_list, ccw_iter);
11890 ccw_list_item = g_list_next(ccw_list_item);
11893 /* if list is empty remove original address from hash */
11894 if (g_list_length (ccw_list) == 0)
11895 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11902 * cominterop_get_native_wrapper_adjusted:
11903 * @method: managed COM Interop method
11905 * Returns: the generated method to call with signature matching
11906 * the unmanaged COM Method signature
11908 static MonoMethod *
11909 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11911 static MonoMethod *get_hr_for_exception = NULL;
11912 MonoMethod *res = NULL;
11913 MonoMethodBuilder *mb;
11914 MonoMarshalSpec **mspecs;
11915 MonoMethodSignature *sig, *sig_native;
11916 MonoExceptionClause *main_clause = NULL;
11917 MonoMethodHeader *header;
11921 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11923 if (!get_hr_for_exception)
11924 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11926 sig = mono_method_signature (method);
11928 /* create unmanaged wrapper */
11929 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11931 sig_native = cominterop_method_signature (method);
11933 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11935 mono_method_get_marshal_info (method, mspecs);
11937 /* move managed args up one */
11938 for (i = sig->param_count; i >= 1; i--)
11939 mspecs [i+1] = mspecs [i];
11941 /* first arg is IntPtr for interface */
11944 /* move return spec to last param */
11945 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11946 mspecs [sig_native->param_count] = mspecs [0];
11950 if (!preserve_sig) {
11951 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11954 main_clause = g_new0 (MonoExceptionClause, 1);
11955 main_clause->try_offset = mono_mb_get_label (mb);
11958 /* load last param to store result if not preserve_sig and not void */
11959 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11960 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11962 /* the CCW -> object conversion */
11963 mono_mb_emit_ldarg (mb, 0);
11964 mono_mb_emit_icon (mb, FALSE);
11965 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11967 for (i = 0; i < sig->param_count; i++)
11968 mono_mb_emit_ldarg (mb, i+1);
11970 mono_mb_emit_managed_call (mb, method, NULL);
11972 if (!preserve_sig) {
11973 /* store result if not preserve_sig and we have one */
11974 if (!MONO_TYPE_IS_VOID (sig->ret))
11975 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11977 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11979 /* Main exception catch */
11980 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11981 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
11982 main_clause->data.catch_class = mono_defaults.object_class;
11985 main_clause->handler_offset = mono_mb_get_label (mb);
11986 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11987 mono_mb_emit_stloc (mb, hr);
11988 mono_mb_emit_branch (mb, CEE_LEAVE);
11989 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
11992 mono_mb_patch_branch (mb, pos_leave);
11994 mono_mb_emit_ldloc (mb, hr);
11997 mono_mb_emit_byte (mb, CEE_RET);
11999 mono_loader_lock ();
12000 mono_marshal_lock ();
12001 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
12002 mono_marshal_unlock ();
12003 mono_loader_unlock ();
12007 for (i = sig_native->param_count; i >= 0; i--)
12009 mono_metadata_free_marshal_spec (mspecs [i]);
12012 if (!preserve_sig) {
12013 header = ((MonoMethodNormal *)res)->header;
12014 header->num_clauses = 1;
12015 header->clauses = main_clause;
12022 * cominterop_mono_string_to_guid:
12024 * Converts the standard string representation of a GUID
12025 * to a 16 byte Microsoft GUID.
12028 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
12029 gunichar2 * chars = mono_string_chars (string);
12031 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
12033 for (i = 0; i < sizeof(indexes); i++)
12034 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
12038 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
12040 guint8 klass_guid [16];
12041 if (cominterop_class_guid (klass, klass_guid))
12042 return !memcmp (guid, klass_guid, sizeof (klass_guid));
12047 cominterop_ccw_addref (MonoCCWInterface* ccwe)
12049 gint32 ref_count = 0;
12050 MonoCCW* ccw = ccwe->ccw;
12052 g_assert (ccw->gc_handle);
12053 g_assert (ccw->ref_count >= 0);
12054 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
12055 if (ref_count == 1) {
12056 guint32 oldhandle = ccw->gc_handle;
12057 g_assert (oldhandle);
12058 /* since we now have a ref count, alloc a strong handle*/
12059 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12060 mono_gchandle_free (oldhandle);
12066 cominterop_ccw_release (MonoCCWInterface* ccwe)
12068 gint32 ref_count = 0;
12069 MonoCCW* ccw = ccwe->ccw;
12071 g_assert (ccw->ref_count > 0);
12072 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12073 if (ref_count == 0) {
12074 /* allow gc of object */
12075 guint32 oldhandle = ccw->gc_handle;
12076 g_assert (oldhandle);
12077 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12078 mono_gchandle_free (oldhandle);
12083 #define MONO_S_OK 0x00000000L
12084 #define MONO_E_NOINTERFACE 0x80004002L
12085 #define MONO_E_NOTIMPL 0x80004001L
12088 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12091 MonoClass *itf = NULL;
12093 MonoCCW* ccw = ccwe->ccw;
12094 MonoClass* klass = NULL;
12095 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12098 klass = mono_object_class (object);
12103 /* handle IUnknown special */
12104 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12105 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12106 /* remember to addref on QI */
12107 cominterop_ccw_addref (*ppv);
12111 /* handle IDispatch special */
12112 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12113 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12114 /* remember to addref on QI */
12115 cominterop_ccw_addref (*ppv);
12119 ifaces = mono_class_get_implemented_interfaces (klass);
12121 for (i = 0; i < ifaces->len; ++i) {
12122 MonoClass *ic = NULL;
12123 ic = g_ptr_array_index (ifaces, i);
12124 if (cominterop_class_guid_equal (riid, ic)) {
12129 g_ptr_array_free (ifaces, TRUE);
12132 *ppv = cominterop_get_ccw (object, itf);
12133 /* remember to addref on QI */
12134 cominterop_ccw_addref (*ppv);
12138 return MONO_E_NOINTERFACE;
12142 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12144 return MONO_E_NOTIMPL;
12148 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12150 return MONO_E_NOTIMPL;
12154 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12155 gunichar2** rgszNames, guint32 cNames,
12156 guint32 lcid, gint32 *rgDispId)
12158 return MONO_E_NOTIMPL;
12162 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12163 gpointer riid, guint32 lcid,
12164 guint16 wFlags, gpointer pDispParams,
12165 gpointer pVarResult, gpointer pExcepInfo,
12168 return MONO_E_NOTIMPL;
12172 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12177 for (i = 0; i < len; ++i)
12181 g_assert (i < len);
12184 while (byte && !(byte & 1))
12186 g_assert (byte == 1);
12189 *bitmask = buf [i];
12193 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12195 MonoMethodBuilder *mb;
12196 MonoMethodSignature *sig, *csig;
12197 MonoExceptionClause *clause;
12198 MonoMethodHeader *header;
12203 int i, param_count, sig_size, pos_leave;
12207 klass = method->klass;
12208 image = method->klass->image;
12209 cache = image->thunk_invoke_cache;
12211 if ((res = mono_marshal_find_in_cache (cache, method)))
12214 sig = mono_method_signature (method);
12215 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12217 /* add "this" and exception param */
12218 param_count = sig->param_count + sig->hasthis + 1;
12220 /* dup & extend signature */
12221 csig = mono_metadata_signature_alloc (image, param_count);
12222 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12223 memcpy (csig, sig, sig_size);
12224 csig->param_count = param_count;
12227 csig->call_convention = MONO_CALL_DEFAULT;
12229 if (sig->hasthis) {
12231 csig->params [0] = &klass->byval_arg;
12232 /* move params up by one */
12233 for (i = 0; i < sig->param_count; i++)
12234 csig->params [i + 1] = sig->params [i];
12237 /* setup exception param as byref+[out] */
12238 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12239 &mono_defaults.exception_class->byval_arg);
12240 csig->params [param_count - 1]->byref = 1;
12241 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12243 /* convert struct return to object */
12244 if (MONO_TYPE_ISSTRUCT (sig->ret))
12245 csig->ret = &mono_defaults.object_class->byval_arg;
12247 /* local 0 (temp for exception object) */
12248 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12250 /* local 1 (temp for result) */
12251 if (!MONO_TYPE_IS_VOID (sig->ret))
12252 mono_mb_add_local (mb, sig->ret);
12254 /* clear exception arg */
12255 mono_mb_emit_ldarg (mb, param_count - 1);
12256 mono_mb_emit_byte (mb, CEE_LDNULL);
12257 mono_mb_emit_byte (mb, CEE_STIND_REF);
12260 mono_loader_lock ();
12261 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12262 mono_loader_unlock ();
12263 clause->try_offset = mono_mb_get_label (mb);
12265 /* push method's args */
12266 for (i = 0; i < param_count - 1; i++) {
12270 mono_mb_emit_ldarg (mb, i);
12272 /* get the byval type of the param */
12273 klass = mono_class_from_mono_type (csig->params [i]);
12274 type = &klass->byval_arg;
12276 /* unbox struct args */
12277 if (MONO_TYPE_ISSTRUCT (type)) {
12278 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12280 /* byref args & and the "this" arg must remain a ptr.
12281 Otherwise make a copy of the value type */
12282 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12283 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12285 csig->params [i] = &mono_defaults.object_class->byval_arg;
12290 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12291 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12293 mono_mb_emit_op (mb, CEE_CALL, method);
12295 /* save result at local 1 */
12296 if (!MONO_TYPE_IS_VOID (sig->ret))
12297 mono_mb_emit_stloc (mb, 1);
12299 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12302 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12303 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12304 clause->data.catch_class = mono_defaults.object_class;
12306 clause->handler_offset = mono_mb_get_label (mb);
12308 /* store exception at local 0 */
12309 mono_mb_emit_stloc (mb, 0);
12310 mono_mb_emit_ldarg (mb, param_count - 1);
12311 mono_mb_emit_ldloc (mb, 0);
12312 mono_mb_emit_byte (mb, CEE_STIND_REF);
12313 mono_mb_emit_branch (mb, CEE_LEAVE);
12315 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12317 mono_mb_patch_branch (mb, pos_leave);
12320 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12321 mono_mb_emit_ldloc (mb, 1);
12323 /* box the return value */
12324 if (MONO_TYPE_ISSTRUCT (sig->ret))
12325 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12328 mono_mb_emit_byte (mb, CEE_RET);
12330 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12333 header = ((MonoMethodNormal *)res)->header;
12334 header->num_clauses = 1;
12335 header->clauses = clause;