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_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1353 // get function pointer from 1st arg, the COM interface pointer
1354 mono_mb_emit_ldarg (mb, 0);
1355 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1356 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1358 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1359 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1360 mono_mb_emit_calli (mb, sig);
1361 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1362 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1366 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1368 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1372 mono_type_to_ldind (MonoType *type)
1378 switch (type->type) {
1380 return CEE_LDIND_I1;
1382 case MONO_TYPE_BOOLEAN:
1383 return CEE_LDIND_U1;
1385 return CEE_LDIND_I2;
1387 case MONO_TYPE_CHAR:
1388 return CEE_LDIND_U2;
1390 return CEE_LDIND_I4;
1392 return CEE_LDIND_U4;
1396 case MONO_TYPE_FNPTR:
1398 case MONO_TYPE_CLASS:
1399 case MONO_TYPE_STRING:
1400 case MONO_TYPE_OBJECT:
1401 case MONO_TYPE_SZARRAY:
1402 case MONO_TYPE_ARRAY:
1403 return CEE_LDIND_REF;
1406 return CEE_LDIND_I8;
1408 return CEE_LDIND_R4;
1410 return CEE_LDIND_R8;
1411 case MONO_TYPE_VALUETYPE:
1412 if (type->data.klass->enumtype) {
1413 type = type->data.klass->enum_basetype;
1417 case MONO_TYPE_TYPEDBYREF:
1419 case MONO_TYPE_GENERICINST:
1420 type = &type->data.generic_class->container_class->byval_arg;
1423 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1429 mono_type_to_stind (MonoType *type)
1435 switch (type->type) {
1438 case MONO_TYPE_BOOLEAN:
1439 return CEE_STIND_I1;
1442 case MONO_TYPE_CHAR:
1443 return CEE_STIND_I2;
1446 return CEE_STIND_I4;
1450 case MONO_TYPE_FNPTR:
1452 case MONO_TYPE_CLASS:
1453 case MONO_TYPE_STRING:
1454 case MONO_TYPE_OBJECT:
1455 case MONO_TYPE_SZARRAY:
1456 case MONO_TYPE_ARRAY:
1457 return CEE_STIND_REF;
1460 return CEE_STIND_I8;
1462 return CEE_STIND_R4;
1464 return CEE_STIND_R8;
1465 case MONO_TYPE_VALUETYPE:
1466 if (type->data.klass->enumtype) {
1467 type = type->data.klass->enum_basetype;
1471 case MONO_TYPE_TYPEDBYREF:
1473 case MONO_TYPE_GENERICINST:
1474 type = &type->data.generic_class->container_class->byval_arg;
1477 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1483 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1486 case MONO_MARSHAL_CONV_BOOL_I4:
1487 mono_mb_emit_ldloc (mb, 1);
1488 mono_mb_emit_ldloc (mb, 0);
1489 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1490 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1491 mono_mb_emit_byte (mb, 3);
1492 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1493 mono_mb_emit_byte (mb, CEE_BR_S);
1494 mono_mb_emit_byte (mb, 1);
1495 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1496 mono_mb_emit_byte (mb, CEE_STIND_I1);
1498 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1499 mono_mb_emit_ldloc (mb, 1);
1500 mono_mb_emit_ldloc (mb, 0);
1501 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1502 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1503 mono_mb_emit_byte (mb, 3);
1504 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1505 mono_mb_emit_byte (mb, CEE_BR_S);
1506 mono_mb_emit_byte (mb, 1);
1507 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1508 mono_mb_emit_byte (mb, CEE_STIND_I1);
1510 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1511 MonoClass *eklass = NULL;
1514 if (type->type == MONO_TYPE_SZARRAY) {
1515 eklass = type->data.klass;
1517 g_assert_not_reached ();
1520 esize = mono_class_native_size (eklass, NULL);
1522 /* create a new array */
1523 mono_mb_emit_ldloc (mb, 1);
1524 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1525 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1526 mono_mb_emit_byte (mb, CEE_STIND_I);
1528 if (eklass->blittable) {
1529 /* copy the elements */
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_byte (mb, CEE_LDIND_I);
1532 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1533 mono_mb_emit_byte (mb, CEE_ADD);
1534 mono_mb_emit_ldloc (mb, 0);
1535 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1536 mono_mb_emit_byte (mb, CEE_PREFIX1);
1537 mono_mb_emit_byte (mb, CEE_CPBLK);
1540 int array_var, src_var, dst_var, index_var;
1541 guint32 label2, label3;
1543 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1544 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1545 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1548 mono_mb_emit_ldloc (mb, 1);
1549 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1550 mono_mb_emit_stloc (mb, array_var);
1552 /* save the old src pointer */
1553 mono_mb_emit_ldloc (mb, 0);
1554 mono_mb_emit_stloc (mb, src_var);
1555 /* save the old dst pointer */
1556 mono_mb_emit_ldloc (mb, 1);
1557 mono_mb_emit_stloc (mb, dst_var);
1559 /* Emit marshalling loop */
1560 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1561 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1562 mono_mb_emit_stloc (mb, index_var);
1565 label2 = mono_mb_get_label (mb);
1566 mono_mb_emit_ldloc (mb, index_var);
1567 mono_mb_emit_ldloc (mb, array_var);
1568 mono_mb_emit_byte (mb, CEE_LDLEN);
1569 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1571 /* src is already set */
1574 mono_mb_emit_ldloc (mb, array_var);
1575 mono_mb_emit_ldloc (mb, index_var);
1576 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1577 mono_mb_emit_stloc (mb, 1);
1579 /* Do the conversion */
1580 emit_struct_conv (mb, eklass, TRUE);
1583 mono_mb_emit_add_to_local (mb, index_var, 1);
1585 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1587 mono_mb_patch_branch (mb, label3);
1589 /* restore the old src pointer */
1590 mono_mb_emit_ldloc (mb, src_var);
1591 mono_mb_emit_stloc (mb, 0);
1592 /* restore the old dst pointer */
1593 mono_mb_emit_ldloc (mb, dst_var);
1594 mono_mb_emit_stloc (mb, 1);
1598 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1599 MonoClass *eclass = mono_defaults.char_class;
1601 /* create a new array */
1602 mono_mb_emit_ldloc (mb, 1);
1603 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1604 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1605 mono_mb_emit_byte (mb, CEE_STIND_REF);
1607 mono_mb_emit_ldloc (mb, 1);
1608 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1609 mono_mb_emit_ldloc (mb, 0);
1610 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1611 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1612 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1615 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1616 mono_mb_emit_ldloc (mb, 1);
1617 mono_mb_emit_ldloc (mb, 0);
1618 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1619 mono_mb_emit_byte (mb, CEE_STIND_REF);
1621 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1622 mono_mb_emit_ldloc (mb, 1);
1623 mono_mb_emit_ldloc (mb, 0);
1624 mono_mb_emit_icall (mb, mono_string_from_utf16);
1625 mono_mb_emit_byte (mb, CEE_STIND_REF);
1627 case MONO_MARSHAL_CONV_STR_LPTSTR:
1628 mono_mb_emit_ldloc (mb, 1);
1629 mono_mb_emit_ldloc (mb, 0);
1630 mono_mb_emit_byte (mb, CEE_LDIND_I);
1631 #ifdef PLATFORM_WIN32
1632 mono_mb_emit_icall (mb, mono_string_from_utf16);
1634 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1636 mono_mb_emit_byte (mb, CEE_STIND_REF);
1638 case MONO_MARSHAL_CONV_STR_LPSTR:
1639 mono_mb_emit_ldloc (mb, 1);
1640 mono_mb_emit_ldloc (mb, 0);
1641 mono_mb_emit_byte (mb, CEE_LDIND_I);
1642 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1643 mono_mb_emit_byte (mb, CEE_STIND_REF);
1645 case MONO_MARSHAL_CONV_STR_LPWSTR:
1646 mono_mb_emit_ldloc (mb, 1);
1647 mono_mb_emit_ldloc (mb, 0);
1648 mono_mb_emit_byte (mb, CEE_LDIND_I);
1649 mono_mb_emit_icall (mb, mono_string_from_utf16);
1650 mono_mb_emit_byte (mb, CEE_STIND_REF);
1652 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1653 MonoClass *klass = mono_class_from_mono_type (type);
1654 int src_var, dst_var;
1656 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1657 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1659 /* *dst = new object */
1660 mono_mb_emit_ldloc (mb, 1);
1661 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1662 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1663 mono_mb_emit_byte (mb, CEE_STIND_REF);
1665 /* save the old src pointer */
1666 mono_mb_emit_ldloc (mb, 0);
1667 mono_mb_emit_stloc (mb, src_var);
1668 /* save the old dst pointer */
1669 mono_mb_emit_ldloc (mb, 1);
1670 mono_mb_emit_stloc (mb, dst_var);
1672 /* dst = pointer to newly created object data */
1673 mono_mb_emit_ldloc (mb, 1);
1674 mono_mb_emit_byte (mb, CEE_LDIND_I);
1675 mono_mb_emit_icon (mb, sizeof (MonoObject));
1676 mono_mb_emit_byte (mb, CEE_ADD);
1677 mono_mb_emit_stloc (mb, 1);
1679 emit_struct_conv (mb, klass, TRUE);
1681 /* restore the old src pointer */
1682 mono_mb_emit_ldloc (mb, src_var);
1683 mono_mb_emit_stloc (mb, 0);
1684 /* restore the old dst pointer */
1685 mono_mb_emit_ldloc (mb, dst_var);
1686 mono_mb_emit_stloc (mb, 1);
1689 case MONO_MARSHAL_CONV_DEL_FTN: {
1690 MonoClass *klass = mono_class_from_mono_type (type);
1692 mono_mb_emit_ldloc (mb, 1);
1693 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1694 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1695 mono_mb_emit_ldloc (mb, 0);
1696 mono_mb_emit_byte (mb, CEE_LDIND_I);
1697 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1698 mono_mb_emit_byte (mb, CEE_STIND_REF);
1701 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1702 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1704 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1705 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1706 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1707 static MonoClass* com_interop_proxy_class = NULL;
1708 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1709 static MonoMethod* get_transparent_proxy = NULL;
1711 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1712 MonoClass *klass = NULL;
1714 /* COM types are initialized lazily */
1715 mono_init_com_types ();
1717 klass = mono_class_from_mono_type (type);
1719 mono_mb_emit_ldloc (mb, 1);
1720 mono_mb_emit_byte (mb, CEE_LDNULL);
1721 mono_mb_emit_byte (mb, CEE_STIND_REF);
1723 mono_mb_emit_ldloc (mb, 0);
1724 mono_mb_emit_byte (mb, CEE_LDIND_I);
1725 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1727 /* load dst to store later */
1728 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_ldloc (mb, 0);
1731 mono_mb_emit_byte (mb, CEE_LDIND_I);
1732 mono_mb_emit_icon (mb, TRUE);
1733 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1734 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1736 if (!com_interop_proxy_class)
1737 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1738 if (!com_interop_proxy_get_proxy)
1739 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1740 if (!get_transparent_proxy)
1741 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1743 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1745 mono_mb_emit_ldloc (mb, 0);
1746 mono_mb_emit_byte (mb, CEE_LDIND_I);
1747 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1748 mono_mb_emit_icall (mb, type_from_handle);
1749 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1750 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1751 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1753 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1755 mono_mb_emit_byte (mb, CEE_STIND_REF);
1756 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1758 /* is already managed object */
1759 mono_mb_patch_short_branch (mb, pos_ccw);
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_byte (mb, CEE_LDIND_I);
1762 mono_mb_emit_icon (mb, TRUE);
1763 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1765 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1767 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1769 mono_mb_emit_byte (mb, CEE_STIND_REF);
1771 mono_mb_patch_short_branch (mb, pos_end);
1773 mono_mb_patch_short_branch (mb, pos_null);
1777 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1779 * Passing SafeHandles as ref does not allow the unmanaged code
1780 * to change the SafeHandle value. If the value is changed,
1781 * we should issue a diagnostic exception (NotSupportedException)
1782 * that informs the user that changes to handles in unmanaged code
1785 * Since we currently have no access to the original
1786 * SafeHandle that was used during the marshalling,
1787 * for now we just ignore this, and ignore/discard any
1788 * changes that might have happened to the handle.
1793 case MONO_MARSHAL_CONV_HANDLEREF: {
1795 * Passing HandleRefs in a struct that is ref()ed does not
1796 * copy the values back to the HandleRef
1801 case MONO_MARSHAL_CONV_STR_BSTR:
1802 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1803 case MONO_MARSHAL_CONV_STR_TBSTR:
1804 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1806 g_warning ("marshaling conversion %d not implemented", conv);
1807 g_assert_not_reached ();
1812 conv_to_icall (MonoMarshalConv conv)
1815 case MONO_MARSHAL_CONV_STR_LPWSTR:
1816 return mono_marshal_string_to_utf16;
1817 case MONO_MARSHAL_CONV_LPWSTR_STR:
1818 return mono_string_from_utf16;
1819 case MONO_MARSHAL_CONV_LPSTR_STR:
1820 return mono_string_new_wrapper;
1821 case MONO_MARSHAL_CONV_STR_LPTSTR:
1822 #ifdef PLATFORM_WIN32
1823 return mono_marshal_string_to_utf16;
1825 return mono_string_to_lpstr;
1827 case MONO_MARSHAL_CONV_STR_LPSTR:
1828 return mono_string_to_lpstr;
1829 case MONO_MARSHAL_CONV_STR_BSTR:
1830 return mono_string_to_bstr;
1831 case MONO_MARSHAL_CONV_BSTR_STR:
1832 return mono_string_from_bstr;
1833 case MONO_MARSHAL_CONV_STR_TBSTR:
1834 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1835 return mono_string_to_ansibstr;
1836 case MONO_MARSHAL_CONV_SB_LPSTR:
1837 return mono_string_builder_to_utf8;
1838 case MONO_MARSHAL_CONV_SB_LPTSTR:
1839 #ifdef PLATFORM_WIN32
1840 return mono_string_builder_to_utf16;
1842 return mono_string_builder_to_utf8;
1844 case MONO_MARSHAL_CONV_SB_LPWSTR:
1845 return mono_string_builder_to_utf16;
1846 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1847 return mono_array_to_savearray;
1848 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1849 return mono_array_to_lparray;
1850 case MONO_MARSHAL_CONV_DEL_FTN:
1851 return mono_delegate_to_ftnptr;
1852 case MONO_MARSHAL_CONV_FTN_DEL:
1853 return mono_ftnptr_to_delegate;
1854 case MONO_MARSHAL_CONV_LPSTR_SB:
1855 return mono_string_utf8_to_builder;
1856 case MONO_MARSHAL_CONV_LPTSTR_SB:
1857 #ifdef PLATFORM_WIN32
1858 return mono_string_utf16_to_builder;
1860 return mono_string_utf8_to_builder;
1862 case MONO_MARSHAL_CONV_LPWSTR_SB:
1863 return mono_string_utf16_to_builder;
1864 case MONO_MARSHAL_FREE_ARRAY:
1865 return mono_marshal_free_array;
1866 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1867 return mono_string_to_byvalstr;
1868 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1869 return mono_string_to_byvalwstr;
1871 g_assert_not_reached ();
1878 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1883 case MONO_MARSHAL_CONV_BOOL_I4:
1884 mono_mb_emit_ldloc (mb, 1);
1885 mono_mb_emit_ldloc (mb, 0);
1886 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1887 mono_mb_emit_byte (mb, CEE_STIND_I4);
1889 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1890 mono_mb_emit_ldloc (mb, 1);
1891 mono_mb_emit_ldloc (mb, 0);
1892 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1893 mono_mb_emit_byte (mb, CEE_NEG);
1894 mono_mb_emit_byte (mb, CEE_STIND_I2);
1896 case MONO_MARSHAL_CONV_STR_LPWSTR:
1897 case MONO_MARSHAL_CONV_STR_LPSTR:
1898 case MONO_MARSHAL_CONV_STR_LPTSTR:
1899 case MONO_MARSHAL_CONV_STR_BSTR:
1900 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1901 case MONO_MARSHAL_CONV_STR_TBSTR: {
1904 /* free space if free == true */
1905 mono_mb_emit_ldloc (mb, 2);
1906 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1907 mono_mb_emit_ldloc (mb, 1);
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 mono_mb_emit_icall (mb, g_free);
1910 mono_mb_patch_short_branch (mb, pos);
1912 mono_mb_emit_ldloc (mb, 1);
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1915 mono_mb_emit_icall (mb, conv_to_icall (conv));
1916 mono_mb_emit_byte (mb, CEE_STIND_I);
1919 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1920 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1921 case MONO_MARSHAL_CONV_DEL_FTN:
1922 mono_mb_emit_ldloc (mb, 1);
1923 mono_mb_emit_ldloc (mb, 0);
1924 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1925 mono_mb_emit_icall (mb, conv_to_icall (conv));
1926 mono_mb_emit_byte (mb, CEE_STIND_I);
1928 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1929 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1932 mono_mb_emit_ldloc (mb, 1); /* dst */
1933 mono_mb_emit_ldloc (mb, 0);
1934 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1935 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1936 mono_mb_emit_icall (mb, conv_to_icall (conv));
1939 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1940 MonoClass *eklass = NULL;
1943 if (type->type == MONO_TYPE_SZARRAY) {
1944 eklass = type->data.klass;
1946 g_assert_not_reached ();
1949 if (eklass->valuetype)
1950 esize = mono_class_native_size (eklass, NULL);
1952 esize = sizeof (gpointer);
1954 mono_mb_emit_ldloc (mb, 0);
1955 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1956 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1958 if (eklass->blittable) {
1959 mono_mb_emit_ldloc (mb, 1);
1960 mono_mb_emit_ldloc (mb, 0);
1961 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1962 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1963 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1964 mono_mb_emit_byte (mb, CEE_PREFIX1);
1965 mono_mb_emit_byte (mb, CEE_CPBLK);
1967 int array_var, src_var, dst_var, index_var;
1968 guint32 label2, label3;
1970 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1971 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1972 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1975 mono_mb_emit_ldloc (mb, 0);
1976 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1977 mono_mb_emit_stloc (mb, array_var);
1979 /* save the old src pointer */
1980 mono_mb_emit_ldloc (mb, 0);
1981 mono_mb_emit_stloc (mb, src_var);
1982 /* save the old dst pointer */
1983 mono_mb_emit_ldloc (mb, 1);
1984 mono_mb_emit_stloc (mb, dst_var);
1986 /* Emit marshalling loop */
1987 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1988 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1989 mono_mb_emit_stloc (mb, index_var);
1992 label2 = mono_mb_get_label (mb);
1993 mono_mb_emit_ldloc (mb, index_var);
1994 mono_mb_emit_ldloc (mb, array_var);
1995 mono_mb_emit_byte (mb, CEE_LDLEN);
1996 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1999 mono_mb_emit_ldloc (mb, array_var);
2000 mono_mb_emit_ldloc (mb, index_var);
2001 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2002 mono_mb_emit_stloc (mb, 0);
2004 /* dst is already set */
2006 /* Do the conversion */
2007 emit_struct_conv (mb, eklass, FALSE);
2010 mono_mb_emit_add_to_local (mb, index_var, 1);
2012 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2014 mono_mb_patch_branch (mb, label3);
2016 /* restore the old src pointer */
2017 mono_mb_emit_ldloc (mb, src_var);
2018 mono_mb_emit_stloc (mb, 0);
2019 /* restore the old dst pointer */
2020 mono_mb_emit_ldloc (mb, dst_var);
2021 mono_mb_emit_stloc (mb, 1);
2024 mono_mb_patch_branch (mb, pos);
2027 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2028 mono_mb_emit_ldloc (mb, 0);
2029 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2030 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2032 mono_mb_emit_ldloc (mb, 1);
2033 mono_mb_emit_ldloc (mb, 0);
2034 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2035 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
2036 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2037 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2038 mono_mb_patch_short_branch (mb, pos);
2041 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2042 int src_var, dst_var;
2044 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2045 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2047 mono_mb_emit_ldloc (mb, 0);
2048 mono_mb_emit_byte (mb, CEE_LDIND_I);
2049 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2051 /* save the old src pointer */
2052 mono_mb_emit_ldloc (mb, 0);
2053 mono_mb_emit_stloc (mb, src_var);
2054 /* save the old dst pointer */
2055 mono_mb_emit_ldloc (mb, 1);
2056 mono_mb_emit_stloc (mb, dst_var);
2058 /* src = pointer to object data */
2059 mono_mb_emit_ldloc (mb, 0);
2060 mono_mb_emit_byte (mb, CEE_LDIND_I);
2061 mono_mb_emit_icon (mb, sizeof (MonoObject));
2062 mono_mb_emit_byte (mb, CEE_ADD);
2063 mono_mb_emit_stloc (mb, 0);
2065 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2067 /* restore the old src pointer */
2068 mono_mb_emit_ldloc (mb, src_var);
2069 mono_mb_emit_stloc (mb, 0);
2070 /* restore the old dst pointer */
2071 mono_mb_emit_ldloc (mb, dst_var);
2072 mono_mb_emit_stloc (mb, 1);
2074 mono_mb_patch_branch (mb, pos);
2077 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2078 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2079 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2080 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2082 /* COM types are initialized lazily */
2083 mono_init_com_types ();
2086 mono_mb_emit_ldloc (mb, 1);
2087 mono_mb_emit_icon (mb, 0);
2088 mono_mb_emit_byte (mb, CEE_CONV_U);
2089 mono_mb_emit_byte (mb, CEE_STIND_I);
2091 mono_mb_emit_ldloc (mb, 0);
2092 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2094 // if null just break, dst was already inited to 0
2095 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2097 mono_mb_emit_ldloc (mb, 0);
2098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2099 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2100 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2102 // load dst to store later
2103 mono_mb_emit_ldloc (mb, 1);
2106 mono_mb_emit_ldloc (mb, 0);
2107 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2108 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2109 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2111 /* load the RCW from the ComInteropProxy*/
2112 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2115 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2116 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2117 mono_mb_emit_icon (mb, TRUE);
2118 mono_mb_emit_icall (mb, cominterop_get_interface);
2121 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2122 static MonoProperty* iunknown = NULL;
2125 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2126 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2128 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2129 static MonoProperty* idispatch = NULL;
2132 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2133 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2136 g_assert_not_reached ();
2138 mono_mb_emit_byte (mb, CEE_STIND_I);
2139 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2142 mono_mb_patch_short_branch (mb, pos_rcw);
2143 /* load dst to store later */
2144 mono_mb_emit_ldloc (mb, 1);
2146 mono_mb_emit_ldloc (mb, 0);
2147 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2149 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2150 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2151 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2152 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2153 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2154 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2156 g_assert_not_reached ();
2157 mono_mb_emit_icall (mb, cominterop_get_ccw);
2158 mono_mb_emit_byte (mb, CEE_STIND_I);
2160 mono_mb_patch_short_branch (mb, pos_end);
2161 mono_mb_patch_short_branch (mb, pos_null);
2165 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2166 int dar_release_slot, pos;
2168 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2171 * The following is ifdefed-out, because I have no way of doing the
2172 * DangerousRelease when destroying the structure
2175 /* set release = false */
2176 mono_mb_emit_icon (mb, 0);
2177 mono_mb_emit_stloc (mb, dar_release_slot);
2178 if (!sh_dangerous_add_ref)
2179 init_safe_handle ();
2181 /* safehandle.DangerousAddRef (ref release) */
2182 mono_mb_emit_ldloc (mb, 0); /* the source */
2183 mono_mb_emit_byte (mb, CEE_LDIND_I);
2184 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2185 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2187 mono_mb_emit_ldloc (mb, 0);
2188 mono_mb_emit_byte (mb, CEE_LDIND_I);
2189 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2190 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2191 mono_mb_patch_branch (mb, pos);
2193 /* Pull the handle field from SafeHandle */
2194 mono_mb_emit_ldloc (mb, 1);
2195 mono_mb_emit_ldloc (mb, 0);
2196 mono_mb_emit_byte (mb, CEE_LDIND_I);
2197 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2198 mono_mb_emit_byte (mb, CEE_LDIND_I);
2199 mono_mb_emit_byte (mb, CEE_STIND_I);
2203 case MONO_MARSHAL_CONV_HANDLEREF: {
2204 mono_mb_emit_ldloc (mb, 1);
2205 mono_mb_emit_ldloc (mb, 0);
2206 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2207 mono_mb_emit_byte (mb, CEE_ADD);
2208 mono_mb_emit_byte (mb, CEE_LDIND_I);
2209 mono_mb_emit_byte (mb, CEE_STIND_I);
2214 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2215 MonoException *exc = mono_get_exception_not_implemented (msg);
2218 mono_raise_exception (exc);
2224 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2226 MonoMarshalType *info;
2230 emit_struct_conv(mb, klass->parent, to_object);
2232 info = mono_marshal_load_type_info (klass);
2234 if (info->native_size == 0)
2237 if (klass->blittable) {
2238 int msize = mono_class_value_size (klass, NULL);
2239 g_assert (msize == info->native_size);
2240 mono_mb_emit_ldloc (mb, 1);
2241 mono_mb_emit_ldloc (mb, 0);
2242 mono_mb_emit_icon (mb, msize);
2243 mono_mb_emit_byte (mb, CEE_PREFIX1);
2244 mono_mb_emit_byte (mb, CEE_CPBLK);
2246 mono_mb_emit_add_to_local (mb, 0, msize);
2247 mono_mb_emit_add_to_local (mb, 1, msize);
2251 for (i = 0; i < info->num_fields; i++) {
2252 MonoMarshalNative ntype;
2253 MonoMarshalConv conv;
2254 MonoType *ftype = info->fields [i].field->type;
2257 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2259 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2262 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2265 msize = klass->instance_size - info->fields [i].field->offset;
2266 usize = info->native_size - info->fields [i].offset;
2268 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2269 usize = info->fields [i + 1].offset - info->fields [i].offset;
2272 if (klass != mono_defaults.safehandle_class){
2274 * FIXME: Should really check for usize==0 and msize>0, but we apply
2275 * the layout to the managed structure as well.
2278 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2279 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2280 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2281 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2282 "reference field at the same offset as another field.",
2283 mono_type_full_name (&klass->byval_arg));
2286 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2287 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2288 mono_type_full_name (&klass->byval_arg));
2293 case MONO_MARSHAL_CONV_NONE: {
2296 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2297 ftype->type == MONO_TYPE_U) {
2298 mono_mb_emit_ldloc (mb, 1);
2299 mono_mb_emit_ldloc (mb, 0);
2300 mono_mb_emit_byte (mb, CEE_LDIND_I);
2301 mono_mb_emit_byte (mb, CEE_STIND_I);
2312 case MONO_TYPE_BOOLEAN:
2315 case MONO_TYPE_CHAR:
2321 mono_mb_emit_ldloc (mb, 1);
2322 mono_mb_emit_ldloc (mb, 0);
2323 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2324 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2326 case MONO_TYPE_VALUETYPE: {
2327 int src_var, dst_var;
2329 if (ftype->data.klass->enumtype) {
2330 ftype = ftype->data.klass->enum_basetype;
2334 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2335 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2337 /* save the old src pointer */
2338 mono_mb_emit_ldloc (mb, 0);
2339 mono_mb_emit_stloc (mb, src_var);
2340 /* save the old dst pointer */
2341 mono_mb_emit_ldloc (mb, 1);
2342 mono_mb_emit_stloc (mb, dst_var);
2344 emit_struct_conv (mb, ftype->data.klass, to_object);
2346 /* restore the old src pointer */
2347 mono_mb_emit_ldloc (mb, src_var);
2348 mono_mb_emit_stloc (mb, 0);
2349 /* restore the old dst pointer */
2350 mono_mb_emit_ldloc (mb, dst_var);
2351 mono_mb_emit_stloc (mb, 1);
2354 case MONO_TYPE_OBJECT: {
2355 mono_init_com_types ();
2357 static MonoMethod *variant_clear = NULL;
2358 static MonoMethod *get_object_for_native_variant = NULL;
2361 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2362 if (!get_object_for_native_variant)
2363 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2364 mono_mb_emit_ldloc (mb, 1);
2365 mono_mb_emit_ldloc (mb, 0);
2366 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2367 mono_mb_emit_byte (mb, CEE_STIND_REF);
2369 mono_mb_emit_ldloc (mb, 0);
2370 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2373 static MonoMethod *get_native_variant_for_object = NULL;
2375 if (!get_native_variant_for_object)
2376 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2378 mono_mb_emit_ldloc (mb, 0);
2379 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2380 mono_mb_emit_ldloc (mb, 1);
2381 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2387 g_warning ("marshaling type %02x not implemented", ftype->type);
2388 g_assert_not_reached ();
2393 int src_var, dst_var;
2395 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2396 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2398 /* save the old src pointer */
2399 mono_mb_emit_ldloc (mb, 0);
2400 mono_mb_emit_stloc (mb, src_var);
2401 /* save the old dst pointer */
2402 mono_mb_emit_ldloc (mb, 1);
2403 mono_mb_emit_stloc (mb, dst_var);
2406 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2408 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2410 /* restore the old src pointer */
2411 mono_mb_emit_ldloc (mb, src_var);
2412 mono_mb_emit_stloc (mb, 0);
2413 /* restore the old dst pointer */
2414 mono_mb_emit_ldloc (mb, dst_var);
2415 mono_mb_emit_stloc (mb, 1);
2420 mono_mb_emit_add_to_local (mb, 0, usize);
2421 mono_mb_emit_add_to_local (mb, 1, msize);
2423 mono_mb_emit_add_to_local (mb, 0, msize);
2424 mono_mb_emit_add_to_local (mb, 1, usize);
2430 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2432 /* Call DestroyStructure */
2433 /* FIXME: Only do this if needed */
2434 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2435 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2436 mono_mb_emit_ldloc (mb, struct_var);
2437 mono_mb_emit_icall (mb, mono_struct_delete_old);
2441 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2445 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2446 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2447 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2450 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2452 mono_mb_emit_icall (mb, checkpoint_func);
2454 mono_mb_patch_branch (mb, pos_noabort);
2458 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2460 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2463 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2467 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2469 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2472 static MonoAsyncResult *
2473 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2475 MonoMethodMessage *msg;
2476 MonoDelegate *async_callback;
2480 MonoMethod *method = NULL, *method2 = NULL;
2482 g_assert (delegate);
2484 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2486 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2487 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2489 /* If the target is a proxy, make a direct call. Is proxy's work
2490 // to make the call asynchronous.
2492 MonoAsyncResult *ares;
2494 MonoArray *out_args;
2496 method = delegate->method;
2498 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2499 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2500 g_assert(handle != NULL);
2501 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2502 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2503 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2504 MONO_OBJECT_SETREF (msg, async_result, ares);
2505 msg->call_type = CallType_BeginInvoke;
2507 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2512 klass = delegate->object.vtable->klass;
2514 method = mono_get_delegate_invoke (klass);
2515 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2518 g_assert (method != NULL);
2520 im = mono_get_delegate_invoke (method->klass);
2521 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2523 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2527 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2529 int i, params_var, tmp_var;
2531 /* allocate local (pointer) *params[] */
2532 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2533 /* allocate local (pointer) tmp */
2534 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2536 /* alloate space on stack to store an array of pointers to the arguments */
2537 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2538 mono_mb_emit_byte (mb, CEE_PREFIX1);
2539 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2540 mono_mb_emit_stloc (mb, params_var);
2543 mono_mb_emit_ldloc (mb, params_var);
2544 mono_mb_emit_stloc (mb, tmp_var);
2546 if (save_this && sig->hasthis) {
2547 mono_mb_emit_ldloc (mb, tmp_var);
2548 mono_mb_emit_ldarg_addr (mb, 0);
2549 mono_mb_emit_byte (mb, CEE_STIND_I);
2550 /* tmp = tmp + sizeof (gpointer) */
2551 if (sig->param_count)
2552 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2556 for (i = 0; i < sig->param_count; i++) {
2557 mono_mb_emit_ldloc (mb, tmp_var);
2558 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2559 mono_mb_emit_byte (mb, CEE_STIND_I);
2560 /* tmp = tmp + sizeof (gpointer) */
2561 if (i < (sig->param_count - 1))
2562 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2569 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2573 GString *res = g_string_new ("");
2576 g_string_append (res, prefix);
2577 g_string_append_c (res, '_');
2580 mono_type_get_desc (res, sig->ret, FALSE);
2583 g_string_append (res, "__this__");
2585 for (i = 0; i < sig->param_count; ++i) {
2586 g_string_append_c (res, '_');
2587 mono_type_get_desc (res, sig->params [i], FALSE);
2590 g_string_free (res, FALSE);
2595 * mono_marshal_get_string_encoding:
2597 * Return the string encoding which should be used for a given parameter.
2599 static MonoMarshalNative
2600 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2602 /* First try the parameter marshal info */
2604 if (spec->native == MONO_NATIVE_LPARRAY) {
2605 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2606 return spec->data.array_data.elem_type;
2609 return spec->native;
2613 return MONO_NATIVE_LPSTR;
2615 /* Then try the method level marshal info */
2616 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2617 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2618 return MONO_NATIVE_LPSTR;
2619 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2620 return MONO_NATIVE_LPWSTR;
2621 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2622 #ifdef PLATFORM_WIN32
2623 return MONO_NATIVE_LPWSTR;
2625 return MONO_NATIVE_LPSTR;
2628 return MONO_NATIVE_LPSTR;
2632 static MonoMarshalConv
2633 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2635 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2638 case MONO_NATIVE_LPWSTR:
2639 return MONO_MARSHAL_CONV_STR_LPWSTR;
2640 case MONO_NATIVE_LPSTR:
2641 return MONO_MARSHAL_CONV_STR_LPSTR;
2642 case MONO_NATIVE_LPTSTR:
2643 return MONO_MARSHAL_CONV_STR_LPTSTR;
2644 case MONO_NATIVE_BSTR:
2645 return MONO_MARSHAL_CONV_STR_BSTR;
2651 static MonoMarshalConv
2652 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2654 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2657 case MONO_NATIVE_LPWSTR:
2658 return MONO_MARSHAL_CONV_SB_LPWSTR;
2660 case MONO_NATIVE_LPSTR:
2661 return MONO_MARSHAL_CONV_SB_LPSTR;
2663 case MONO_NATIVE_LPTSTR:
2664 return MONO_MARSHAL_CONV_SB_LPTSTR;
2671 static MonoMarshalConv
2672 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2674 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2679 case MONO_NATIVE_LPWSTR:
2681 return MONO_MARSHAL_CONV_LPWSTR_STR;
2682 case MONO_NATIVE_LPSTR:
2683 return MONO_MARSHAL_CONV_LPSTR_STR;
2684 case MONO_NATIVE_LPTSTR:
2685 return MONO_MARSHAL_CONV_LPTSTR_STR;
2686 case MONO_NATIVE_BSTR:
2687 return MONO_MARSHAL_CONV_BSTR_STR;
2693 static MonoMarshalConv
2694 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2696 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2701 case MONO_NATIVE_LPWSTR:
2703 * mono_string_builder_to_utf16 does not allocate a
2704 * new buffer, so no need to free it.
2707 return MONO_MARSHAL_CONV_LPWSTR_SB;
2708 case MONO_NATIVE_LPSTR:
2709 return MONO_MARSHAL_CONV_LPSTR_SB;
2711 case MONO_NATIVE_LPTSTR:
2712 return MONO_MARSHAL_CONV_LPTSTR_SB;
2720 * Return whenever a field of a native structure or an array member needs to
2724 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2726 MonoMarshalNative encoding;
2727 MonoMarshalConv conv;
2730 case MONO_TYPE_VALUETYPE:
2731 /* FIXME: Optimize this */
2733 case MONO_TYPE_OBJECT:
2734 case MONO_TYPE_CLASS:
2735 if (t->data.klass == mono_defaults.stringbuilder_class) {
2737 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2741 case MONO_TYPE_STRING:
2742 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2743 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2749 static inline MonoMethod*
2750 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2754 mono_marshal_lock ();
2755 res = g_hash_table_lookup (cache, key);
2756 mono_marshal_unlock ();
2760 /* Create the method from the builder and place it in the cache */
2761 static inline MonoMethod*
2762 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2763 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2768 mono_marshal_lock ();
2769 res = g_hash_table_lookup (cache, key);
2770 mono_marshal_unlock ();
2773 newm = mono_mb_create_method (mb, sig, max_stack);
2774 mono_marshal_lock ();
2775 res = g_hash_table_lookup (cache, key);
2778 g_hash_table_insert (cache, key, res);
2779 g_hash_table_insert (wrapper_hash, res, key);
2780 mono_marshal_unlock ();
2782 mono_marshal_unlock ();
2783 mono_free_method (newm);
2791 static inline MonoMethod*
2792 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2794 MonoMethod *res = NULL;
2795 MonoRemotingMethods *wrps;
2797 mono_marshal_lock ();
2798 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2801 switch (wrapper_type) {
2802 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2803 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2804 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2805 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2809 /* it is important to do the unlock after the load from wrps, since in
2810 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2811 * to take the loader lock and some other thread may set the fields.
2813 mono_marshal_unlock ();
2817 /* Create the method from the builder and place it in the cache */
2818 static inline MonoMethod*
2819 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2820 MonoMethodSignature *sig, int max_stack)
2822 MonoMethod **res = NULL;
2823 MonoRemotingMethods *wrps;
2824 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2826 mono_marshal_lock ();
2827 wrps = g_hash_table_lookup (cache, key);
2829 wrps = g_new0 (MonoRemotingMethods, 1);
2830 g_hash_table_insert (cache, key, wrps);
2833 switch (mb->method->wrapper_type) {
2834 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2835 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2836 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2837 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2838 default: g_assert_not_reached (); break;
2840 mono_marshal_unlock ();
2844 newm = mono_mb_create_method (mb, sig, max_stack);
2846 mono_marshal_lock ();
2849 g_hash_table_insert (wrapper_hash, *res, key);
2850 mono_marshal_unlock ();
2852 mono_marshal_unlock ();
2853 mono_free_method (newm);
2861 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2865 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2868 mono_marshal_lock ();
2869 res = g_hash_table_lookup (wrapper_hash, wrapper);
2870 mono_marshal_unlock ();
2875 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2877 MonoMethodSignature *sig;
2878 MonoMethodBuilder *mb;
2884 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2885 !strcmp (method->name, "BeginInvoke"));
2887 sig = signature_no_pinvoke (method);
2889 cache = method->klass->image->delegate_begin_invoke_cache;
2890 if ((res = mono_marshal_find_in_cache (cache, sig)))
2893 g_assert (sig->hasthis);
2895 name = mono_signature_to_name (sig, "begin_invoke");
2896 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2899 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2901 mono_mb_emit_ldarg (mb, 0);
2902 mono_mb_emit_ldloc (mb, params_var);
2903 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2904 mono_mb_emit_byte (mb, CEE_RET);
2906 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2912 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2914 MonoDomain *domain = mono_domain_get ();
2915 MonoAsyncResult *ares;
2916 MonoMethod *method = NULL;
2917 MonoMethodSignature *sig;
2918 MonoMethodMessage *msg;
2919 MonoObject *res, *exc;
2920 MonoArray *out_args;
2923 g_assert (delegate);
2925 if (!delegate->method_info) {
2926 g_assert (delegate->method);
2927 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2930 if (!delegate->method_info || !delegate->method_info->method)
2931 g_assert_not_reached ();
2933 klass = delegate->object.vtable->klass;
2935 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2936 g_assert (method != NULL);
2938 sig = signature_no_pinvoke (method);
2940 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2942 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2944 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."));
2946 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
2947 mono_raise_exception (mono_get_exception_invalid_operation (
2948 "The IAsyncResult object provided does not match this delegate."));
2952 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2953 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2954 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2955 mono_message_init (domain, msg, delegate->method_info, NULL);
2956 msg->call_type = CallType_EndInvoke;
2957 MONO_OBJECT_SETREF (msg, async_result, ares);
2958 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2960 res = mono_thread_pool_finish (ares, &out_args, &exc);
2964 if (((MonoException*)exc)->stack_trace) {
2965 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2967 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2969 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2972 mono_raise_exception ((MonoException*)exc);
2975 mono_method_return_message_restore (method, params, out_args);
2980 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2982 MonoType *t = mono_type_get_underlying_type (return_type);
2984 if (return_type->byref)
2985 return_type = &mono_defaults.int_class->byval_arg;
2988 case MONO_TYPE_VOID:
2989 g_assert_not_reached ();
2992 case MONO_TYPE_STRING:
2993 case MONO_TYPE_CLASS:
2994 case MONO_TYPE_OBJECT:
2995 case MONO_TYPE_ARRAY:
2996 case MONO_TYPE_SZARRAY:
3000 case MONO_TYPE_BOOLEAN:
3003 case MONO_TYPE_CHAR:
3013 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3014 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3016 case MONO_TYPE_GENERICINST:
3017 if (!mono_type_generic_inst_is_valuetype (return_type))
3020 case MONO_TYPE_VALUETYPE: {
3021 MonoClass *klass = mono_class_from_mono_type (return_type);
3022 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3023 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3027 g_warning ("type 0x%x not handled", return_type->type);
3028 g_assert_not_reached ();
3031 mono_mb_emit_byte (mb, CEE_RET);
3035 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3037 MonoMethodSignature *sig;
3038 MonoMethodBuilder *mb;
3044 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3045 !strcmp (method->name, "EndInvoke"));
3047 sig = signature_no_pinvoke (method);
3049 cache = method->klass->image->delegate_end_invoke_cache;
3050 if ((res = mono_marshal_find_in_cache (cache, sig)))
3053 g_assert (sig->hasthis);
3055 name = mono_signature_to_name (sig, "end_invoke");
3056 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3059 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3061 mono_mb_emit_ldarg (mb, 0);
3062 mono_mb_emit_ldloc (mb, params_var);
3063 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3065 if (sig->ret->type == MONO_TYPE_VOID) {
3066 mono_mb_emit_byte (mb, CEE_POP);
3067 mono_mb_emit_byte (mb, CEE_RET);
3069 mono_mb_emit_restore_result (mb, sig->ret);
3071 res = mono_mb_create_and_cache (cache, sig,
3072 mb, sig, sig->param_count + 16);
3079 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3081 MonoMethodMessage *msg;
3082 MonoTransparentProxy *this;
3083 MonoObject *res, *exc;
3084 MonoArray *out_args;
3086 this = *((MonoTransparentProxy **)params [0]);
3089 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3091 /* skip the this pointer */
3094 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3097 MonoMethodSignature *sig = mono_method_signature (method);
3098 int count = sig->param_count;
3099 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3101 for (i=0; i<count; i++) {
3102 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3103 if (class->valuetype) {
3104 if (sig->params [i]->byref) {
3105 mparams[i] = *((gpointer *)params [i]);
3107 /* runtime_invoke expects a boxed instance */
3108 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
3109 mparams[i] = mono_nullable_box (params [i], class);
3111 mparams[i] = params [i];
3114 mparams[i] = *((gpointer**)params [i]);
3118 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3121 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3123 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3126 mono_raise_exception ((MonoException *)exc);
3128 mono_method_return_message_restore (method, params, out_args);
3134 * cominterop_get_native_wrapper_adjusted:
3135 * @method: managed COM Interop method
3137 * Returns: the generated method to call with signature matching
3138 * the unmanaged COM Method signature
3141 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3144 MonoMethodBuilder *mb_native;
3145 MonoMarshalSpec **mspecs;
3146 MonoMethodSignature *sig, *sig_native;
3147 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3150 sig = mono_method_signature (method);
3152 // create unmanaged wrapper
3153 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3154 sig_native = cominterop_method_signature (method);
3156 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3157 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3159 mono_method_get_marshal_info (method, mspecs);
3161 // move managed args up one
3162 for (i = sig->param_count; i >= 1; i--)
3163 mspecs[i+1] = mspecs[i];
3165 // first arg is IntPtr for interface
3168 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3169 // move return spec to last param
3170 if (!MONO_TYPE_IS_VOID (sig->ret))
3171 mspecs[sig_native->param_count] = mspecs[0];
3176 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, TRUE);
3178 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3180 mono_mb_free (mb_native);
3182 for (i = sig_native->param_count; i >= 0; i--)
3184 mono_metadata_free_marshal_spec (mspecs [i]);
3191 * cominterop_get_native_wrapper:
3192 * @method: managed method
3194 * Returns: the generated method to call
3197 cominterop_get_native_wrapper (MonoMethod *method)
3201 MonoMethodBuilder *mb;
3202 MonoMethodSignature *sig, *csig;
3206 cache = method->klass->image->cominterop_wrapper_cache;
3207 if ((res = mono_marshal_find_in_cache (cache, method)))
3210 mono_init_com_types ();
3212 if (!method->klass->methods)
3213 mono_class_setup_methods (method->klass);
3215 sig = mono_method_signature (method);
3216 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3218 /* if method klass is import, that means method
3219 * is really a com call. let interop system emit it.
3221 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3222 /* FIXME: we have to call actual class .ctor
3223 * instead of just __ComObject .ctor.
3225 if (!strcmp(method->name, ".ctor")) {
3226 static MonoMethod *ctor = NULL;
3229 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3230 mono_mb_emit_ldarg (mb, 0);
3231 mono_mb_emit_managed_call (mb, ctor, NULL);
3232 mono_mb_emit_byte (mb, CEE_RET);
3235 static MonoMethod * ThrowExceptionForHR = NULL;
3236 MonoMethod *adjusted_method;
3240 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3242 // add local variables
3243 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3244 if (!MONO_TYPE_IS_VOID (sig->ret))
3245 retval = mono_mb_add_local (mb, sig->ret);
3247 // get the type for the interface the method is defined on
3248 // and then get the underlying COM interface for that type
3249 mono_mb_emit_ldarg (mb, 0);
3250 mono_mb_emit_ptr (mb, method);
3251 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3252 mono_mb_emit_icon (mb, TRUE);
3253 mono_mb_emit_icall (mb, cominterop_get_interface);
3254 mono_mb_emit_stloc (mb, ptr_this);
3256 // arg 1 is unmanaged this pointer
3257 mono_mb_emit_ldloc (mb, ptr_this);
3260 for (i = 1; i <= sig->param_count; i++)
3261 mono_mb_emit_ldarg (mb, i);
3263 // push managed return value as byref last argument
3264 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3265 mono_mb_emit_ldloc_addr (mb, retval);
3267 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3268 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3270 if (!preserve_sig) {
3271 if (!ThrowExceptionForHR)
3272 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3273 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3275 // load return value managed is expecting
3276 if (!MONO_TYPE_IS_VOID (sig->ret))
3277 mono_mb_emit_ldloc (mb, retval);
3280 mono_mb_emit_byte (mb, CEE_RET);
3285 /* Does this case ever get hit? */
3287 char *msg = g_strdup ("non imported interfaces on \
3288 imported classes is not yet implemented.");
3289 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3291 csig = signature_dup (method->klass->image, sig);
3293 res = mono_mb_create_and_cache (cache, method,
3294 mb, csig, csig->param_count + 16);
3300 * cominterop_get_invoke:
3301 * @method: managed method
3303 * Returns: the generated method that calls the underlying __ComObject
3304 * rather than the proxy object.
3307 cominterop_get_invoke (MonoMethod *method)
3309 MonoMethodSignature *sig;
3310 MonoMethodBuilder *mb;
3313 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3317 if ((res = mono_marshal_find_in_cache (cache, method)))
3320 sig = signature_no_pinvoke (method);
3322 /* we cant remote methods without this pointer */
3326 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3328 /* get real proxy object, which is a ComInteropProxy in this case*/
3329 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3330 mono_mb_emit_ldarg (mb, 0);
3331 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3332 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3334 /* load the RCW from the ComInteropProxy*/
3335 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3336 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3338 /* load args and make the call on the RCW */
3339 for (i = 1; i <= sig->param_count; i++)
3340 mono_mb_emit_ldarg (mb, i);
3342 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3343 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3344 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3347 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3348 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3350 mono_mb_emit_op (mb, CEE_CALL, method);
3353 if (!strcmp(method->name, ".ctor")) {
3354 static MonoClass *com_interop_proxy_class = NULL;
3355 static MonoMethod *cache_proxy = NULL;
3357 if (!com_interop_proxy_class)
3358 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3360 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3362 mono_mb_emit_ldarg (mb, 0);
3363 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3364 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3365 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3368 emit_thread_interrupt_checkpoint (mb);
3370 mono_mb_emit_byte (mb, CEE_RET);
3372 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3377 /* Maps a managed object to its unmanaged representation
3378 * i.e. it's COM Callable Wrapper (CCW).
3382 static GHashTable* ccw_hash = NULL;
3384 /* Maps a CCW interface to it's containing CCW.
3385 * Note that a CCW support many interfaces.
3387 * Value: MonoCCWInterface*
3389 static GHashTable* ccw_interface_hash = NULL;
3391 /* Maps the IUnknown value of a RCW to
3392 * it's MonoComInteropProxy*.
3396 static GHashTable* rcw_hash = NULL;
3399 mono_marshal_get_remoting_invoke (MonoMethod *method)
3401 MonoMethodSignature *sig;
3402 MonoMethodBuilder *mb;
3408 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3411 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3412 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3413 return cominterop_get_invoke(method);
3415 sig = signature_no_pinvoke (method);
3417 /* we cant remote methods without this pointer */
3421 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3424 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3425 mb->method->save_lmf = 1;
3427 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3429 mono_mb_emit_ptr (mb, method);
3430 mono_mb_emit_ldloc (mb, params_var);
3431 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3432 emit_thread_interrupt_checkpoint (mb);
3434 if (sig->ret->type == MONO_TYPE_VOID) {
3435 mono_mb_emit_byte (mb, CEE_POP);
3436 mono_mb_emit_byte (mb, CEE_RET);
3438 mono_mb_emit_restore_result (mb, sig->ret);
3441 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3447 /* mono_get_xdomain_marshal_type()
3448 * Returns the kind of marshalling that a type needs for cross domain calls.
3450 static MonoXDomainMarshalType
3451 mono_get_xdomain_marshal_type (MonoType *t)
3454 case MONO_TYPE_VOID:
3455 g_assert_not_reached ();
3459 case MONO_TYPE_BOOLEAN:
3462 case MONO_TYPE_CHAR:
3469 return MONO_MARSHAL_NONE;
3470 case MONO_TYPE_STRING:
3471 return MONO_MARSHAL_COPY;
3472 case MONO_TYPE_ARRAY:
3473 case MONO_TYPE_SZARRAY: {
3474 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3475 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3476 return MONO_MARSHAL_COPY;
3481 return MONO_MARSHAL_SERIALIZE;
3485 /* mono_marshal_xdomain_copy_value
3486 * Makes a copy of "val" suitable for the current domain.
3489 mono_marshal_xdomain_copy_value (MonoObject *val)
3492 if (val == NULL) return NULL;
3494 domain = mono_domain_get ();
3496 switch (mono_object_class (val)->byval_arg.type) {
3497 case MONO_TYPE_VOID:
3498 g_assert_not_reached ();
3502 case MONO_TYPE_BOOLEAN:
3505 case MONO_TYPE_CHAR:
3511 case MONO_TYPE_R8: {
3512 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3514 case MONO_TYPE_STRING: {
3515 MonoString *str = (MonoString *) val;
3516 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3518 case MONO_TYPE_ARRAY:
3519 case MONO_TYPE_SZARRAY: {
3521 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3522 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3523 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3524 if (mt == MONO_MARSHAL_COPY) {
3525 int i, len = mono_array_length (acopy);
3526 for (i = 0; i < len; i++) {
3527 MonoObject *item = mono_array_get (acopy, gpointer, i);
3528 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3531 return (MonoObject *) acopy;
3535 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3536 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3537 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3538 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3539 newsb->length = oldsb->length;
3540 newsb->max_capacity = (gint32)0x7fffffff;
3541 return (MonoObject *) newsb;
3546 /* mono_marshal_xdomain_copy_out_value()
3547 * Copies the contents of the src instance into the dst instance. src and dst
3548 * must have the same type, and if they are arrays, the same size.
3551 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3553 if (src == NULL || dst == NULL) return;
3555 g_assert (mono_object_class (src) == mono_object_class (dst));
3557 switch (mono_object_class (src)->byval_arg.type) {
3558 case MONO_TYPE_ARRAY:
3559 case MONO_TYPE_SZARRAY: {
3560 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3561 if (mt == MONO_MARSHAL_SERIALIZE) return;
3562 if (mt == MONO_MARSHAL_COPY) {
3563 int i, len = mono_array_length ((MonoArray *)dst);
3564 for (i = 0; i < len; i++) {
3565 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3566 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3569 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3575 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3576 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3577 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3579 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)));
3580 dst_sb->cached_str = NULL;
3581 dst_sb->length = src_sb->length;
3586 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3588 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3589 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3593 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3595 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3598 /* mono_marshal_supports_fast_xdomain()
3599 * Returns TRUE if the method can use the fast xdomain wrapper.
3602 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3604 return !method->klass->contextbound &&
3605 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3609 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3611 MonoDomain *current_domain = mono_domain_get ();
3612 MonoDomain *domain = mono_domain_get_by_id (id);
3614 if (!domain || !mono_domain_set (domain, FALSE))
3615 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3618 mono_thread_push_appdomain_ref (domain);
3620 mono_thread_pop_appdomain_ref ();
3622 return current_domain->domain_id;
3626 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3628 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3631 /* mono_marshal_emit_load_domain_method ()
3632 * Loads into the stack a pointer to the code of the provided method for
3633 * the current domain.
3636 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3638 /* We need a pointer to the method for the running domain (not the domain
3639 * that compiles the method).
3641 mono_mb_emit_ptr (mb, method);
3642 mono_mb_emit_icall (mb, mono_compile_method);
3645 /* mono_marshal_check_domain_image ()
3646 * Returns TRUE if the image is loaded in the specified
3647 * application domain.
3650 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3655 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3659 mono_domain_assemblies_lock (domain);
3660 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3662 if (ass->image == image)
3665 mono_domain_assemblies_unlock (domain);
3670 /* mono_marshal_get_xappdomain_dispatch ()
3671 * Generates a method that dispatches a method call from another domain into
3672 * the current domain.
3675 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3677 MonoMethodSignature *sig, *csig;
3678 MonoMethodBuilder *mb;
3680 int i, j, param_index, copy_locals_base;
3681 MonoClass *ret_class = NULL;
3682 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3683 MonoExceptionClause *main_clause;
3684 MonoMethodHeader *header;
3686 gboolean copy_return;
3688 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3691 sig = mono_method_signature (method);
3692 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3695 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3696 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3697 csig->params [j++] = &byte_array_class->this_arg;
3698 csig->params [j++] = &byte_array_class->this_arg;
3699 for (i = 0; i < sig->param_count; i++) {
3700 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3701 csig->params [j++] = sig->params [i];
3704 csig->ret = sig->ret;
3706 csig->ret = &mono_defaults.void_class->byval_arg;
3708 csig->hasthis = FALSE;
3710 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3711 mb->method->save_lmf = 1;
3715 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3716 if (complex_count > 0)
3717 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3718 if (sig->ret->type != MONO_TYPE_VOID) {
3719 loc_return = mono_mb_add_local (mb, sig->ret);
3720 ret_class = mono_class_from_mono_type (sig->ret);
3725 mono_loader_lock ();
3726 main_clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
3727 mono_loader_unlock ();
3728 main_clause->try_offset = mono_mb_get_label (mb);
3730 /* Clean the call context */
3732 mono_mb_emit_byte (mb, CEE_LDNULL);
3733 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3734 mono_mb_emit_byte (mb, CEE_POP);
3736 /* Deserialize call data */
3738 mono_mb_emit_ldarg (mb, 1);
3739 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3740 mono_mb_emit_byte (mb, CEE_DUP);
3741 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3743 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3744 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3746 if (complex_count > 0)
3747 mono_mb_emit_stloc (mb, loc_array);
3749 mono_mb_emit_byte (mb, CEE_POP);
3751 mono_mb_patch_short_branch (mb, pos);
3753 /* Get the target object */
3755 mono_mb_emit_ldarg (mb, 0);
3756 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3758 /* Load the arguments */
3760 copy_locals_base = mb->locals;
3761 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3763 for (i = 0; i < sig->param_count; i++) {
3764 MonoType *pt = sig->params [i];
3765 MonoClass *pclass = mono_class_from_mono_type (pt);
3766 switch (marshal_types [i]) {
3767 case MONO_MARSHAL_SERIALIZE: {
3768 /* take the value from the serialized array */
3769 mono_mb_emit_ldloc (mb, loc_array);
3770 mono_mb_emit_icon (mb, j++);
3772 if (pclass->valuetype) {
3773 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3774 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3776 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3779 if (pclass->valuetype) {
3780 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3781 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3782 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3784 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3785 if (pclass != mono_defaults.object_class) {
3786 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3792 case MONO_MARSHAL_COPY_OUT: {
3793 /* Keep a local copy of the value since we need to copy it back after the call */
3794 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3795 mono_mb_emit_ldarg (mb, param_index++);
3796 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3797 mono_mb_emit_byte (mb, CEE_DUP);
3798 mono_mb_emit_stloc (mb, copy_local);
3801 case MONO_MARSHAL_COPY: {
3802 mono_mb_emit_ldarg (mb, param_index);
3804 mono_mb_emit_byte (mb, CEE_DUP);
3805 mono_mb_emit_byte (mb, CEE_DUP);
3806 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3807 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3808 mono_mb_emit_byte (mb, CEE_STIND_REF);
3810 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3815 case MONO_MARSHAL_NONE:
3816 mono_mb_emit_ldarg (mb, param_index++);
3821 /* Make the call to the real object */
3823 emit_thread_force_interrupt_checkpoint (mb);
3825 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3827 if (sig->ret->type != MONO_TYPE_VOID)
3828 mono_mb_emit_stloc (mb, loc_return);
3830 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3834 for (i = 0; i < sig->param_count; i++) {
3835 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3836 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3837 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3838 mono_mb_emit_ldarg (mb, param_index);
3839 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3844 /* Serialize the return values */
3846 if (complex_out_count > 0) {
3847 /* Reset parameters in the array that don't need to be serialized back */
3849 for (i = 0; i < sig->param_count; i++) {
3850 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3851 if (!sig->params [i]->byref) {
3852 mono_mb_emit_ldloc (mb, loc_array);
3853 mono_mb_emit_icon (mb, j);
3854 mono_mb_emit_byte (mb, CEE_LDNULL);
3855 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3860 /* Add the return value to the array */
3862 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3863 mono_mb_emit_ldloc (mb, loc_array);
3864 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3865 mono_mb_emit_ldloc (mb, loc_return);
3866 if (ret_class->valuetype) {
3867 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3869 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3874 mono_mb_emit_ldarg (mb, 1);
3875 mono_mb_emit_ldloc (mb, loc_array);
3876 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3877 mono_mb_emit_byte (mb, CEE_STIND_REF);
3878 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3879 mono_mb_emit_ldarg (mb, 1);
3880 mono_mb_emit_ldloc (mb, loc_return);
3881 if (ret_class->valuetype) {
3882 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3884 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3885 mono_mb_emit_byte (mb, CEE_STIND_REF);
3887 mono_mb_emit_ldarg (mb, 1);
3888 mono_mb_emit_byte (mb, CEE_LDNULL);
3889 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3890 mono_mb_emit_byte (mb, CEE_STIND_REF);
3893 mono_mb_emit_ldarg (mb, 2);
3894 mono_mb_emit_byte (mb, CEE_LDNULL);
3895 mono_mb_emit_byte (mb, CEE_STIND_REF);
3896 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3898 /* Main exception catch */
3899 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3900 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3901 main_clause->data.catch_class = mono_defaults.object_class;
3904 main_clause->handler_offset = mono_mb_get_label (mb);
3905 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3906 mono_mb_emit_stloc (mb, loc_serialized_exc);
3907 mono_mb_emit_ldarg (mb, 2);
3908 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3909 mono_mb_emit_byte (mb, CEE_STIND_REF);
3910 mono_mb_emit_branch (mb, CEE_LEAVE);
3911 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3914 mono_mb_patch_branch (mb, pos_leave);
3917 mono_mb_emit_ldloc (mb, loc_return);
3919 mono_mb_emit_byte (mb, CEE_RET);
3921 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3924 header = ((MonoMethodNormal *)res)->header;
3925 header->num_clauses = 1;
3926 header->clauses = main_clause;
3931 /* mono_marshal_get_xappdomain_invoke ()
3932 * Generates a fast remoting wrapper for cross app domain calls.
3935 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3937 MonoMethodSignature *sig;
3938 MonoMethodBuilder *mb;
3940 int i, j, complex_count, complex_out_count, copy_locals_base;
3942 MonoClass *ret_class = NULL;
3943 MonoMethod *xdomain_method;
3944 int ret_marshal_type = MONO_MARSHAL_NONE;
3945 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3946 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3947 int pos, pos_dispatch, pos_noex;
3948 gboolean copy_return = FALSE;
3952 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3955 /* we cant remote methods without this pointer */
3956 if (!mono_method_signature (method)->hasthis)
3959 if (!mono_marshal_supports_fast_xdomain (method))
3960 return mono_marshal_get_remoting_invoke (method);
3962 mono_remoting_marshal_init ();
3964 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3967 sig = signature_no_pinvoke (method);
3969 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3970 mb->method->save_lmf = 1;
3972 /* Count the number of parameters that need to be serialized */
3974 marshal_types = alloca (sizeof (int) * sig->param_count);
3975 complex_count = complex_out_count = 0;
3976 for (i = 0; i < sig->param_count; i++) {
3977 MonoType *ptype = sig->params[i];
3978 int mt = mono_get_xdomain_marshal_type (ptype);
3980 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3981 * the copy will be made by reusing the original object instance
3983 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3984 mt = MONO_MARSHAL_COPY_OUT;
3985 else if (mt == MONO_MARSHAL_SERIALIZE) {
3987 if (ptype->byref) complex_out_count++;
3989 marshal_types [i] = mt;
3992 if (sig->ret->type != MONO_TYPE_VOID) {
3993 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3994 ret_class = mono_class_from_mono_type (sig->ret);
3995 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4000 if (complex_count > 0)
4001 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4002 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4003 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4005 loc_return = mono_mb_add_local (mb, sig->ret);
4006 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4007 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4008 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4009 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4011 /* Save thread domain data */
4013 mono_mb_emit_icall (mb, mono_context_get);
4014 mono_mb_emit_byte (mb, CEE_DUP);
4015 mono_mb_emit_stloc (mb, loc_context);
4017 /* If the thread is not running in the default context, it needs to go
4018 * through the whole remoting sink, since the context is going to change
4020 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4021 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4023 /* Another case in which the fast path can't be used: when the target domain
4024 * has a different image for the same assembly.
4027 /* Get the target domain id */
4029 mono_mb_emit_ldarg (mb, 0);
4030 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4031 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4032 mono_mb_emit_byte (mb, CEE_DUP);
4033 mono_mb_emit_stloc (mb, loc_real_proxy);
4035 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4036 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4037 mono_mb_emit_stloc (mb, loc_domainid);
4039 /* Check if the target domain has the same image for the required assembly */
4041 mono_mb_emit_ldloc (mb, loc_domainid);
4042 mono_mb_emit_ptr (mb, method->klass->image);
4043 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4044 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4046 /* Use the whole remoting sink to dispatch this message */
4048 mono_mb_patch_short_branch (mb, pos);
4050 mono_mb_emit_ldarg (mb, 0);
4051 for (i = 0; i < sig->param_count; i++)
4052 mono_mb_emit_ldarg (mb, i + 1);
4054 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4055 mono_mb_emit_byte (mb, CEE_RET);
4056 mono_mb_patch_short_branch (mb, pos_dispatch);
4058 /* Create the array that will hold the parameters to be serialized */
4060 if (complex_count > 0) {
4061 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 */
4062 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4065 for (i = 0; i < sig->param_count; i++) {
4067 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4068 pclass = mono_class_from_mono_type (sig->params[i]);
4069 mono_mb_emit_byte (mb, CEE_DUP);
4070 mono_mb_emit_icon (mb, j);
4071 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4072 if (sig->params[i]->byref) {
4073 if (pclass->valuetype)
4074 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4076 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4078 if (pclass->valuetype)
4079 mono_mb_emit_op (mb, CEE_BOX, pclass);
4080 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4083 mono_mb_emit_stloc (mb, loc_array);
4085 /* Serialize parameters */
4087 mono_mb_emit_ldloc (mb, loc_array);
4088 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4089 mono_mb_emit_stloc (mb, loc_serialized_data);
4091 mono_mb_emit_byte (mb, CEE_LDNULL);
4092 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4093 mono_mb_emit_stloc (mb, loc_serialized_data);
4098 mono_mb_emit_ldloc (mb, loc_domainid);
4099 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4100 mono_marshal_emit_switch_domain (mb);
4101 mono_mb_emit_stloc (mb, loc_old_domainid);
4103 /* Load the arguments */
4105 mono_mb_emit_ldloc (mb, loc_real_proxy);
4106 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4107 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4109 copy_locals_base = mb->locals;
4110 for (i = 0; i < sig->param_count; i++) {
4111 switch (marshal_types [i]) {
4112 case MONO_MARSHAL_SERIALIZE:
4114 case MONO_MARSHAL_COPY: {
4115 mono_mb_emit_ldarg (mb, i+1);
4116 if (sig->params [i]->byref) {
4117 /* make a local copy of the byref parameter. The real parameter
4118 * will be updated after the xdomain call
4120 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4121 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4122 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4123 mono_mb_emit_stloc (mb, copy_local);
4124 mono_mb_emit_ldloc_addr (mb, copy_local);
4128 case MONO_MARSHAL_COPY_OUT:
4129 case MONO_MARSHAL_NONE:
4130 mono_mb_emit_ldarg (mb, i+1);
4135 /* Make the call to the invoke wrapper in the target domain */
4137 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4138 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4139 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4142 mono_mb_emit_stloc (mb, loc_return);
4146 mono_mb_emit_ldloc (mb, loc_old_domainid);
4147 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4148 mono_marshal_emit_switch_domain (mb);
4149 mono_mb_emit_byte (mb, CEE_POP);
4151 /* Restore thread domain data */
4153 mono_mb_emit_ldloc (mb, loc_context);
4154 mono_mb_emit_icall (mb, mono_context_set);
4156 /* if (loc_serialized_exc != null) ... */
4158 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4159 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4161 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4162 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4163 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4164 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4165 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4166 mono_mb_emit_byte (mb, CEE_THROW);
4167 mono_mb_patch_short_branch (mb, pos_noex);
4169 /* copy back non-serialized output parameters */
4172 for (i = 0; i < sig->param_count; i++) {
4173 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4174 mono_mb_emit_ldarg (mb, i + 1);
4175 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4176 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4177 mono_mb_emit_byte (mb, CEE_STIND_REF);
4180 /* Deserialize out parameters */
4182 if (complex_out_count > 0) {
4183 mono_mb_emit_ldloc (mb, loc_serialized_data);
4184 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4185 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4186 mono_mb_emit_stloc (mb, loc_array);
4188 /* Copy back output parameters and return type */
4191 for (i = 0; i < sig->param_count; i++) {
4192 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4193 if (sig->params[i]->byref) {
4194 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4195 mono_mb_emit_ldarg (mb, i + 1);
4196 mono_mb_emit_ldloc (mb, loc_array);
4197 mono_mb_emit_icon (mb, j);
4198 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4199 if (pclass->valuetype) {
4200 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4201 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4202 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4204 if (pclass != mono_defaults.object_class)
4205 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4206 mono_mb_emit_byte (mb, CEE_STIND_REF);
4212 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4213 mono_mb_emit_ldloc (mb, loc_array);
4214 mono_mb_emit_icon (mb, complex_count);
4215 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4216 if (ret_class->valuetype) {
4217 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4218 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4221 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4222 mono_mb_emit_ldloc (mb, loc_serialized_data);
4223 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4224 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4225 if (ret_class->valuetype) {
4226 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4227 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4228 } else if (ret_class != mono_defaults.object_class) {
4229 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4232 mono_mb_emit_ldloc (mb, loc_serialized_data);
4233 mono_mb_emit_byte (mb, CEE_DUP);
4234 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4235 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4237 mono_mb_patch_short_branch (mb, pos);
4238 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4239 mono_mb_emit_byte (mb, CEE_POP);
4243 mono_mb_emit_ldloc (mb, loc_return);
4244 if (ret_marshal_type == MONO_MARSHAL_COPY)
4245 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4248 mono_mb_emit_byte (mb, CEE_RET);
4250 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4257 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4259 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4260 return mono_marshal_get_xappdomain_invoke (method);
4261 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4262 return cominterop_get_invoke (method);
4264 return mono_marshal_get_remoting_invoke (method);
4267 G_GNUC_UNUSED static gpointer
4268 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4270 if (rp->target_domain_id != -1)
4271 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4273 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4277 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4279 MonoMethodSignature *sig;
4280 MonoMethodBuilder *mb;
4281 MonoMethod *res, *native;
4282 int i, pos, pos_rem;
4286 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4289 /* we cant remote methods without this pointer */
4290 g_assert (mono_method_signature (method)->hasthis);
4292 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4295 sig = signature_no_pinvoke (method);
4297 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4299 for (i = 0; i <= sig->param_count; i++)
4300 mono_mb_emit_ldarg (mb, i);
4302 mono_mb_emit_ldarg (mb, 0);
4303 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4305 if (mono_marshal_supports_fast_xdomain (method)) {
4306 mono_mb_emit_ldarg (mb, 0);
4307 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4309 /* wrapper for cross app domain calls */
4310 native = mono_marshal_get_xappdomain_invoke (method);
4311 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4312 mono_mb_emit_byte (mb, CEE_RET);
4314 mono_mb_patch_branch (mb, pos_rem);
4316 /* wrapper for normal remote calls */
4317 native = mono_marshal_get_remoting_invoke (method);
4318 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4319 mono_mb_emit_byte (mb, CEE_RET);
4322 mono_mb_patch_branch (mb, pos);
4323 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4324 mono_mb_emit_byte (mb, CEE_RET);
4326 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4334 MonoMethodSignature *sig;
4336 } SignatureMethodPair;
4339 signature_method_pair_hash (gconstpointer data)
4341 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4343 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4347 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4349 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4353 free_signature_method_pair (SignatureMethodPair *pair)
4359 * the returned method invokes all methods in a multicast delegate.
4362 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4364 MonoMethodSignature *sig, *static_sig;
4366 MonoMethodBuilder *mb;
4367 MonoMethod *res, *newm;
4369 SignatureMethodPair key;
4370 SignatureMethodPair *new_key;
4371 int local_prev, local_target;
4374 MonoMethod *target_method = NULL;
4375 MonoClass *target_class = NULL;
4376 gboolean callvirt = FALSE;
4379 * If the delegate target is null, and the target method is not static, a virtual
4380 * call is made to that method with the first delegate argument as this. This is
4381 * a non-documented .NET feature.
4383 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4385 target_method = del->method;
4386 if (target_method->is_inflated) {
4387 MonoType *target_type;
4389 g_assert (method->signature->hasthis);
4390 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4391 mono_method_get_context (method));
4392 target_class = mono_class_from_mono_type (target_type);
4394 target_class = del->method->klass;
4398 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4399 !strcmp (method->name, "Invoke"));
4401 sig = signature_no_pinvoke (method);
4404 /* We need to cache the signature+method pair */
4405 mono_marshal_lock ();
4406 if (!method->klass->image->delegate_abstract_invoke_cache)
4407 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);
4408 cache = method->klass->image->delegate_abstract_invoke_cache;
4410 key.method = target_method;
4411 res = g_hash_table_lookup (cache, &key);
4412 mono_marshal_unlock ();
4416 cache = method->klass->image->delegate_invoke_cache;
4417 if ((res = mono_marshal_find_in_cache (cache, sig)))
4421 static_sig = signature_dup (method->klass->image, sig);
4422 static_sig->hasthis = 0;
4424 name = mono_signature_to_name (sig, "invoke");
4425 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4428 /* allocate local 0 (object) */
4429 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4430 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4432 g_assert (sig->hasthis);
4436 * prev.Invoke( args .. );
4437 * return this.<target>( args .. );
4440 /* this wrapper can be used in unmanaged-managed transitions */
4441 emit_thread_interrupt_checkpoint (mb);
4443 /* get this->prev */
4444 mono_mb_emit_ldarg (mb, 0);
4445 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4446 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4447 mono_mb_emit_stloc (mb, local_prev);
4448 mono_mb_emit_ldloc (mb, local_prev);
4450 /* if prev != null */
4451 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4455 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4456 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4458 mono_mb_emit_ldloc (mb, local_prev);
4459 for (i = 0; i < sig->param_count; i++)
4460 mono_mb_emit_ldarg (mb, i + 1);
4461 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4462 if (sig->ret->type != MONO_TYPE_VOID)
4463 mono_mb_emit_byte (mb, CEE_POP);
4465 /* continued or prev == null */
4466 mono_mb_patch_branch (mb, pos0);
4468 /* get this->target */
4469 mono_mb_emit_ldarg (mb, 0);
4470 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4471 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4472 mono_mb_emit_stloc (mb, local_target);
4474 /* if target != null */
4475 mono_mb_emit_ldloc (mb, local_target);
4476 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4478 /* then call this->method_ptr nonstatic */
4481 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4483 mono_mb_emit_ldloc (mb, local_target);
4484 for (i = 0; i < sig->param_count; ++i)
4485 mono_mb_emit_ldarg (mb, i + 1);
4486 mono_mb_emit_ldarg (mb, 0);
4487 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4488 mono_mb_emit_byte (mb, CEE_LDIND_I );
4489 mono_mb_emit_op (mb, CEE_CALLI, sig);
4491 mono_mb_emit_byte (mb, CEE_RET);
4494 /* else [target == null] call this->method_ptr static */
4495 mono_mb_patch_branch (mb, pos0);
4498 mono_mb_emit_ldarg (mb, 1);
4499 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4500 for (i = 1; i < sig->param_count; ++i)
4501 mono_mb_emit_ldarg (mb, i + 1);
4502 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4504 for (i = 0; i < sig->param_count; ++i)
4505 mono_mb_emit_ldarg (mb, i + 1);
4506 mono_mb_emit_ldarg (mb, 0);
4507 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4508 mono_mb_emit_byte (mb, CEE_LDIND_I );
4509 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4512 mono_mb_emit_byte (mb, CEE_RET);
4515 // From mono_mb_create_and_cache
4516 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4517 newm->skip_visibility = 1;
4518 /*We perform double checked locking, so must fence before publishing*/
4519 mono_memory_barrier ();
4520 mono_marshal_lock ();
4521 res = g_hash_table_lookup (cache, &key);
4524 new_key = g_new0 (SignatureMethodPair, 1);
4526 new_key->method = target_method;
4527 g_hash_table_insert (cache, new_key, res);
4528 g_hash_table_insert (wrapper_hash, res, new_key);
4529 mono_marshal_unlock ();
4531 mono_marshal_unlock ();
4532 mono_free_method (newm);
4535 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4536 res->skip_visibility = 1;
4544 * signature_dup_add_this:
4546 * Make a copy of @sig, adding an explicit this argument.
4548 static MonoMethodSignature*
4549 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4551 MonoMethodSignature *res;
4554 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4555 memcpy (res, sig, sizeof (MonoMethodSignature));
4556 res->param_count = sig->param_count + 1;
4557 res->hasthis = FALSE;
4558 for (i = sig->param_count - 1; i >= 0; i --)
4559 res->params [i + 1] = sig->params [i];
4560 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4566 MonoMethodSignature *ctor_sig;
4567 MonoMethodSignature *sig;
4570 /* protected by the marshal lock, contains CtorSigPair pointers */
4571 static GSList *strsig_list = NULL;
4573 static MonoMethodSignature *
4574 lookup_string_ctor_signature (MonoMethodSignature *sig)
4576 MonoMethodSignature *callsig;
4580 mono_marshal_lock ();
4582 for (item = strsig_list; item; item = item->next) {
4584 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4585 * because it is lock-free.
4587 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4592 mono_marshal_unlock ();
4596 static MonoMethodSignature *
4597 add_string_ctor_signature (MonoMethod *method)
4599 MonoMethodSignature *callsig;
4602 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4603 callsig->ret = &mono_defaults.string_class->byval_arg;
4604 cs = g_new (CtorSigPair, 1);
4606 cs->ctor_sig = mono_method_signature (method);
4608 mono_marshal_lock ();
4609 strsig_list = g_slist_prepend (strsig_list, cs);
4610 mono_marshal_unlock ();
4615 * generates IL code for the runtime invoke function
4616 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4618 * we also catch exceptions if exc != null
4621 mono_marshal_get_runtime_invoke (MonoMethod *method)
4623 MonoMethodSignature *sig, *csig, *callsig;
4624 MonoExceptionClause *clause;
4625 MonoMethodHeader *header;
4626 MonoMethodBuilder *mb;
4627 GHashTable *cache = NULL;
4628 MonoClass *target_klass;
4629 MonoMethod *res = NULL;
4630 static MonoString *string_dummy = NULL;
4631 static MonoMethodSignature *cctor_signature = NULL;
4632 static MonoMethodSignature *finalize_signature = NULL;
4635 gboolean need_direct_wrapper = FALSE;
4639 if (!cctor_signature) {
4640 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4641 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4643 if (!finalize_signature) {
4644 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4645 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4646 finalize_signature->hasthis = 1;
4649 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4650 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4652 * Array Get/Set/Address methods. The JIT implements them using inline code
4653 * so we need to create an invoke wrapper which calls the method directly.
4655 need_direct_wrapper = TRUE;
4658 if (method->string_ctor) {
4659 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4661 callsig = add_string_ctor_signature (method);
4663 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4665 * Valuetype methods receive a managed pointer as the this argument.
4666 * Create a new signature to reflect this.
4668 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4670 if (method->dynamic)
4671 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4673 callsig = mono_method_signature (method);
4678 * We try to share runtime invoke wrappers between different methods but have to
4679 * be careful about methods whose klass has a type cctor, since putting the wrapper
4680 * into that klass would mean that calling a method of klass A might invoke the
4681 * type initializer of class B, or throw an exception if the type initializer
4682 * was called before and failed. See #349621 for an example.
4683 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4685 if (method->klass->image == mono_defaults.corlib)
4686 target_klass = mono_defaults.object_class;
4688 /* Try to share wrappers for non-corlib methods with simple signatures */
4689 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4690 callsig = cctor_signature;
4691 target_klass = mono_defaults.object_class;
4692 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4693 callsig = finalize_signature;
4694 target_klass = mono_defaults.object_class;
4696 // FIXME: This breaks too many things
4698 if (mono_class_get_cctor (method->klass))
4699 need_direct_wrapper = TRUE;
4703 * Can't put these wrappers into object, since they reference non-corlib
4704 * metadata (callsig).
4706 target_klass = method->klass;
4710 if (need_direct_wrapper) {
4711 cache = target_klass->image->runtime_invoke_direct_cache;
4712 res = mono_marshal_find_in_cache (cache, method);
4714 cache = target_klass->image->runtime_invoke_cache;
4716 /* from mono_marshal_find_in_cache */
4717 mono_marshal_lock ();
4718 res = g_hash_table_lookup (cache, callsig);
4719 mono_marshal_unlock ();
4726 /* to make it work with our special string constructors */
4727 if (!string_dummy) {
4728 MONO_GC_REGISTER_ROOT (string_dummy);
4729 string_dummy = mono_string_new_wrapper ("dummy");
4732 sig = mono_method_signature (method);
4734 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4736 csig->ret = &mono_defaults.object_class->byval_arg;
4737 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4738 csig->params [0] = callsig->params [0];
4740 csig->params [0] = &mono_defaults.object_class->byval_arg;
4741 csig->params [1] = &mono_defaults.int_class->byval_arg;
4742 csig->params [2] = &mono_defaults.int_class->byval_arg;
4743 csig->params [3] = &mono_defaults.int_class->byval_arg;
4745 name = mono_signature_to_name (callsig, "runtime_invoke");
4746 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4749 /* allocate local 0 (object) tmp */
4750 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4751 /* allocate local 1 (object) exc */
4752 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4754 /* cond set *exc to null */
4755 mono_mb_emit_byte (mb, CEE_LDARG_2);
4756 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4757 mono_mb_emit_byte (mb, 3);
4758 mono_mb_emit_byte (mb, CEE_LDARG_2);
4759 mono_mb_emit_byte (mb, CEE_LDNULL);
4760 mono_mb_emit_byte (mb, CEE_STIND_REF);
4762 emit_thread_force_interrupt_checkpoint (mb);
4765 if (method->string_ctor) {
4766 mono_mb_emit_ptr (mb, string_dummy);
4768 mono_mb_emit_ldarg (mb, 0);
4772 for (i = 0; i < sig->param_count; i++) {
4773 MonoType *t = sig->params [i];
4776 mono_mb_emit_ldarg (mb, 1);
4778 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4779 mono_mb_emit_byte (mb, CEE_ADD);
4783 mono_mb_emit_byte (mb, CEE_LDIND_I);
4787 type = sig->params [i]->type;
4791 case MONO_TYPE_BOOLEAN:
4795 case MONO_TYPE_CHAR:
4804 mono_mb_emit_byte (mb, CEE_LDIND_I);
4805 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4807 case MONO_TYPE_STRING:
4808 case MONO_TYPE_CLASS:
4809 case MONO_TYPE_ARRAY:
4811 case MONO_TYPE_SZARRAY:
4812 case MONO_TYPE_OBJECT:
4813 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4815 case MONO_TYPE_GENERICINST:
4816 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4817 mono_mb_emit_byte (mb, CEE_LDIND_I);
4822 case MONO_TYPE_VALUETYPE:
4823 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4824 type = t->data.klass->enum_basetype->type;
4827 mono_mb_emit_byte (mb, CEE_LDIND_I);
4828 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4829 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4830 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4831 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4833 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4837 g_assert_not_reached ();
4841 if (need_direct_wrapper) {
4842 mono_mb_emit_op (mb, CEE_CALL, method);
4844 mono_mb_emit_ldarg (mb, 3);
4845 mono_mb_emit_calli (mb, callsig);
4848 if (sig->ret->byref) {
4850 g_assert_not_reached ();
4854 switch (sig->ret->type) {
4855 case MONO_TYPE_VOID:
4856 if (!method->string_ctor)
4857 mono_mb_emit_byte (mb, CEE_LDNULL);
4859 case MONO_TYPE_BOOLEAN:
4860 case MONO_TYPE_CHAR:
4873 case MONO_TYPE_VALUETYPE:
4874 case MONO_TYPE_TYPEDBYREF:
4875 case MONO_TYPE_GENERICINST:
4876 /* box value types */
4877 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4879 case MONO_TYPE_STRING:
4880 case MONO_TYPE_CLASS:
4881 case MONO_TYPE_ARRAY:
4882 case MONO_TYPE_SZARRAY:
4883 case MONO_TYPE_OBJECT:
4888 g_assert_not_reached ();
4891 mono_mb_emit_stloc (mb, 0);
4893 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4895 mono_loader_lock ();
4896 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
4897 mono_loader_unlock ();
4898 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4899 clause->try_len = mono_mb_get_label (mb);
4902 clause->data.filter_offset = mono_mb_get_label (mb);
4904 mono_mb_emit_byte (mb, CEE_POP);
4905 mono_mb_emit_byte (mb, CEE_LDARG_2);
4906 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4907 mono_mb_emit_byte (mb, CEE_PREFIX1);
4908 mono_mb_emit_byte (mb, CEE_CGT_UN);
4909 mono_mb_emit_byte (mb, CEE_PREFIX1);
4910 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4912 clause->handler_offset = mono_mb_get_label (mb);
4915 /* store exception */
4916 mono_mb_emit_stloc (mb, 1);
4918 mono_mb_emit_byte (mb, CEE_LDARG_2);
4919 mono_mb_emit_ldloc (mb, 1);
4920 mono_mb_emit_byte (mb, CEE_STIND_REF);
4922 mono_mb_emit_byte (mb, CEE_LDNULL);
4923 mono_mb_emit_stloc (mb, 0);
4925 /* Check for the abort exception */
4926 mono_mb_emit_ldloc (mb, 1);
4927 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4928 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4930 /* Delay the abort exception */
4931 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4933 mono_mb_patch_short_branch (mb, posna);
4934 mono_mb_emit_branch (mb, CEE_LEAVE);
4936 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4939 mono_mb_patch_branch (mb, pos);
4940 mono_mb_emit_ldloc (mb, 0);
4941 mono_mb_emit_byte (mb, CEE_RET);
4943 if (need_direct_wrapper) {
4944 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4946 /* taken from mono_mb_create_and_cache */
4947 mono_marshal_lock ();
4948 res = g_hash_table_lookup (cache, callsig);
4949 mono_marshal_unlock ();
4951 /* Somebody may have created it before us */
4954 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4956 mono_marshal_lock ();
4957 res = g_hash_table_lookup (cache, callsig);
4960 g_hash_table_insert (cache, callsig, res);
4961 /* Can't insert it into wrapper_hash since the key is a signature */
4963 mono_free_method (newm);
4965 mono_marshal_unlock ();
4968 /* end mono_mb_create_and_cache */
4973 header = ((MonoMethodNormal *)res)->header;
4974 header->num_clauses = 1;
4975 header->clauses = clause;
4981 * mono_marshal_get_static_rgctx_invoke:
4984 * Generates a wrapper for calling a generic shared method, either
4985 * static or generic. We need this for virtual generic method lookup
4986 * and ldftn when we do generic code sharing. Instead of producing
4987 * the address of the method we produce the address of a wrapper for
4988 * the method because the wrapper passes the (method) runtime generic
4989 * context argument which calli cannot do.
4992 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
4994 static gboolean inited = FALSE;
4995 static int num_wrappers = 0;
4997 MonoMethodBuilder *mb;
4999 MonoClass *target_klass = method->klass;
5000 MonoMethodSignature *sig = mono_method_signature (method);
5004 MonoImage *image = method->klass->image;
5006 if (!(cache = image->static_rgctx_invoke_cache)) {
5007 mono_marshal_lock ();
5008 if (!(cache = image->static_rgctx_invoke_cache)) {
5009 cache = image->static_rgctx_invoke_cache =
5010 g_hash_table_new (mono_aligned_addr_hash, NULL);
5012 mono_marshal_unlock ();
5015 if ((res = mono_marshal_find_in_cache (cache, method)))
5019 mono_counters_register ("static rgctx invoke wrappers",
5020 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
5025 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
5026 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
5029 for (i = 0; i < sig->param_count + sig->hasthis; i++)
5030 mono_mb_emit_ldarg (mb, i);
5031 mono_mb_emit_op (mb, CEE_CALL, method);
5032 mono_mb_emit_byte (mb, CEE_RET);
5034 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
5035 sig->param_count + sig->hasthis + 4);
5036 res->skip_visibility = TRUE;
5037 res->flags = method->flags;
5045 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5047 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5048 klass->name_space, klass->name);
5050 mono_mb_emit_exception_marshal_directive (mb, msg);
5054 * mono_marshal_get_ldfld_remote_wrapper:
5055 * @klass: The return type
5057 * This method generates a wrapper for calling mono_load_remote_field_new.
5058 * The return type is ignored for now, as mono_load_remote_field_new () always
5059 * returns an object. In the future, to optimize some codepaths, we might
5060 * call a different function that takes a pointer to a valuetype, instead.
5063 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5065 MonoMethodSignature *sig, *csig;
5066 MonoMethodBuilder *mb;
5068 static MonoMethod* cached = NULL;
5070 mono_marshal_lock ();
5072 mono_marshal_unlock ();
5075 mono_marshal_unlock ();
5077 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5079 mb->method->save_lmf = 1;
5081 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5082 sig->params [0] = &mono_defaults.object_class->byval_arg;
5083 sig->params [1] = &mono_defaults.int_class->byval_arg;
5084 sig->params [2] = &mono_defaults.int_class->byval_arg;
5085 sig->ret = &mono_defaults.object_class->byval_arg;
5087 mono_mb_emit_ldarg (mb, 0);
5088 mono_mb_emit_ldarg (mb, 1);
5089 mono_mb_emit_ldarg (mb, 2);
5091 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5092 csig->params [0] = &mono_defaults.object_class->byval_arg;
5093 csig->params [1] = &mono_defaults.int_class->byval_arg;
5094 csig->params [2] = &mono_defaults.int_class->byval_arg;
5095 csig->ret = &mono_defaults.object_class->byval_arg;
5098 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5099 emit_thread_interrupt_checkpoint (mb);
5101 mono_mb_emit_byte (mb, CEE_RET);
5103 mono_marshal_lock ();
5105 mono_marshal_unlock ();
5108 newm = mono_mb_create_method (mb, sig, 4);
5109 mono_marshal_lock ();
5114 mono_marshal_unlock ();
5116 mono_marshal_unlock ();
5117 mono_free_method (newm);
5126 * mono_marshal_get_ldfld_wrapper:
5127 * @type: the type of the field
5129 * This method generates a function which can be use to load a field with type
5130 * @type from an object. The generated function has the following signature:
5131 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5134 mono_marshal_get_ldfld_wrapper (MonoType *type)
5136 MonoMethodSignature *sig;
5137 MonoMethodBuilder *mb;
5142 int t, pos0, pos1 = 0;
5144 type = mono_type_get_underlying_type (type);
5149 if (type->type == MONO_TYPE_SZARRAY) {
5150 klass = mono_defaults.array_class;
5151 } else if (type->type == MONO_TYPE_VALUETYPE) {
5152 klass = type->data.klass;
5153 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5154 klass = mono_defaults.object_class;
5155 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5156 klass = mono_defaults.int_class;
5157 } else if (t == MONO_TYPE_GENERICINST) {
5158 if (mono_type_generic_inst_is_valuetype (type))
5159 klass = mono_class_from_mono_type (type);
5161 klass = mono_defaults.object_class;
5163 klass = mono_class_from_mono_type (type);
5166 klass = mono_defaults.int_class;
5169 cache = klass->image->ldfld_wrapper_cache;
5170 if ((res = mono_marshal_find_in_cache (cache, klass)))
5173 /* we add the %p pointer value of klass because class names are not unique */
5174 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5175 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5178 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5179 sig->params [0] = &mono_defaults.object_class->byval_arg;
5180 sig->params [1] = &mono_defaults.int_class->byval_arg;
5181 sig->params [2] = &mono_defaults.int_class->byval_arg;
5182 sig->params [3] = &mono_defaults.int_class->byval_arg;
5183 sig->ret = &klass->byval_arg;
5185 mono_mb_emit_ldarg (mb, 0);
5186 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5188 mono_mb_emit_ldarg (mb, 0);
5189 mono_mb_emit_ldarg (mb, 1);
5190 mono_mb_emit_ldarg (mb, 2);
5192 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5195 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5196 csig->params [0] = &mono_defaults.object_class->byval_arg;
5197 csig->params [1] = &mono_defaults.int_class->byval_arg;
5198 csig->params [2] = &mono_defaults.int_class->byval_arg;
5199 csig->ret = &klass->this_arg;
5202 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5203 emit_thread_interrupt_checkpoint (mb);
5206 if (klass->valuetype) {
5207 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5208 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5210 mono_mb_emit_byte (mb, CEE_RET);
5214 mono_mb_patch_branch (mb, pos0);
5216 mono_mb_emit_ldarg (mb, 0);
5217 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5218 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5219 mono_mb_emit_ldarg (mb, 3);
5220 mono_mb_emit_byte (mb, CEE_ADD);
5222 if (klass->valuetype)
5223 mono_mb_patch_branch (mb, pos1);
5228 case MONO_TYPE_BOOLEAN:
5229 case MONO_TYPE_CHAR:
5238 case MONO_TYPE_ARRAY:
5239 case MONO_TYPE_SZARRAY:
5240 case MONO_TYPE_OBJECT:
5241 case MONO_TYPE_CLASS:
5242 case MONO_TYPE_STRING:
5246 case MONO_TYPE_FNPTR:
5247 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5249 case MONO_TYPE_VALUETYPE:
5250 g_assert (!klass->enumtype);
5251 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5253 case MONO_TYPE_GENERICINST:
5254 if (mono_type_generic_inst_is_valuetype (type)) {
5255 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5257 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5261 g_warning ("type %x not implemented", type->type);
5262 g_assert_not_reached ();
5265 mono_mb_emit_byte (mb, CEE_RET);
5267 res = mono_mb_create_and_cache (cache, klass,
5268 mb, sig, sig->param_count + 16);
5275 * mono_marshal_get_ldflda_wrapper:
5276 * @type: the type of the field
5278 * This method generates a function which can be used to load a field address
5279 * from an object. The generated function has the following signature:
5280 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5283 mono_marshal_get_ldflda_wrapper (MonoType *type)
5285 MonoMethodSignature *sig;
5286 MonoMethodBuilder *mb;
5293 type = mono_type_get_underlying_type (type);
5297 if (type->type == MONO_TYPE_SZARRAY) {
5298 klass = mono_defaults.array_class;
5299 } else if (type->type == MONO_TYPE_VALUETYPE) {
5300 klass = type->data.klass;
5301 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5302 t == MONO_TYPE_CLASS) {
5303 klass = mono_defaults.object_class;
5304 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5305 klass = mono_defaults.int_class;
5306 } else if (t == MONO_TYPE_GENERICINST) {
5307 if (mono_type_generic_inst_is_valuetype (type))
5308 klass = mono_class_from_mono_type (type);
5310 klass = mono_defaults.object_class;
5312 klass = mono_class_from_mono_type (type);
5315 klass = mono_defaults.int_class;
5318 cache = klass->image->ldflda_wrapper_cache;
5319 if ((res = mono_marshal_find_in_cache (cache, klass)))
5322 /* we add the %p pointer value of klass because class names are not unique */
5323 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5324 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5327 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5328 sig->params [0] = &mono_defaults.object_class->byval_arg;
5329 sig->params [1] = &mono_defaults.int_class->byval_arg;
5330 sig->params [2] = &mono_defaults.int_class->byval_arg;
5331 sig->params [3] = &mono_defaults.int_class->byval_arg;
5332 sig->ret = &mono_defaults.int_class->byval_arg;
5334 mono_mb_emit_ldarg (mb, 0);
5335 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5337 /* FIXME: Only throw this if the object is in another appdomain */
5338 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5340 mono_mb_patch_branch (mb, pos0);
5342 mono_mb_emit_ldarg (mb, 0);
5343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5344 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5345 mono_mb_emit_ldarg (mb, 3);
5346 mono_mb_emit_byte (mb, CEE_ADD);
5348 mono_mb_emit_byte (mb, CEE_RET);
5350 res = mono_mb_create_and_cache (cache, klass,
5351 mb, sig, sig->param_count + 16);
5358 * mono_marshal_get_stfld_remote_wrapper:
5359 * klass: The type of the field
5361 * This function generates a wrapper for calling mono_store_remote_field_new
5362 * with the appropriate signature.
5363 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5364 * klass argument anymore.
5367 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5369 MonoMethodSignature *sig, *csig;
5370 MonoMethodBuilder *mb;
5372 static MonoMethod *cached = NULL;
5374 mono_marshal_lock ();
5376 mono_marshal_unlock ();
5379 mono_marshal_unlock ();
5381 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5383 mb->method->save_lmf = 1;
5385 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5386 sig->params [0] = &mono_defaults.object_class->byval_arg;
5387 sig->params [1] = &mono_defaults.int_class->byval_arg;
5388 sig->params [2] = &mono_defaults.int_class->byval_arg;
5389 sig->params [3] = &mono_defaults.object_class->byval_arg;
5390 sig->ret = &mono_defaults.void_class->byval_arg;
5392 mono_mb_emit_ldarg (mb, 0);
5393 mono_mb_emit_ldarg (mb, 1);
5394 mono_mb_emit_ldarg (mb, 2);
5395 mono_mb_emit_ldarg (mb, 3);
5397 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5398 csig->params [0] = &mono_defaults.object_class->byval_arg;
5399 csig->params [1] = &mono_defaults.int_class->byval_arg;
5400 csig->params [2] = &mono_defaults.int_class->byval_arg;
5401 csig->params [3] = &mono_defaults.object_class->byval_arg;
5402 csig->ret = &mono_defaults.void_class->byval_arg;
5405 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5406 emit_thread_interrupt_checkpoint (mb);
5408 mono_mb_emit_byte (mb, CEE_RET);
5410 mono_marshal_lock ();
5412 mono_marshal_unlock ();
5415 newm = mono_mb_create_method (mb, sig, 6);
5416 mono_marshal_lock ();
5421 mono_marshal_unlock ();
5423 mono_marshal_unlock ();
5424 mono_free_method (newm);
5433 * mono_marshal_get_stfld_wrapper:
5434 * @type: the type of the field
5436 * This method generates a function which can be use to store a field with type
5437 * @type. The generated function has the following signature:
5438 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5441 mono_marshal_get_stfld_wrapper (MonoType *type)
5443 MonoMethodSignature *sig;
5444 MonoMethodBuilder *mb;
5451 type = mono_type_get_underlying_type (type);
5455 if (type->type == MONO_TYPE_SZARRAY) {
5456 klass = mono_defaults.array_class;
5457 } else if (type->type == MONO_TYPE_VALUETYPE) {
5458 klass = type->data.klass;
5459 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5460 klass = mono_defaults.object_class;
5461 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5462 klass = mono_defaults.int_class;
5463 } else if (t == MONO_TYPE_GENERICINST) {
5464 if (mono_type_generic_inst_is_valuetype (type))
5465 klass = mono_class_from_mono_type (type);
5467 klass = mono_defaults.object_class;
5469 klass = mono_class_from_mono_type (type);
5472 klass = mono_defaults.int_class;
5475 cache = klass->image->stfld_wrapper_cache;
5476 if ((res = mono_marshal_find_in_cache (cache, klass)))
5479 /* we add the %p pointer value of klass because class names are not unique */
5480 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5481 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5484 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5485 sig->params [0] = &mono_defaults.object_class->byval_arg;
5486 sig->params [1] = &mono_defaults.int_class->byval_arg;
5487 sig->params [2] = &mono_defaults.int_class->byval_arg;
5488 sig->params [3] = &mono_defaults.int_class->byval_arg;
5489 sig->params [4] = &klass->byval_arg;
5490 sig->ret = &mono_defaults.void_class->byval_arg;
5492 mono_mb_emit_ldarg (mb, 0);
5493 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5495 mono_mb_emit_ldarg (mb, 0);
5496 mono_mb_emit_ldarg (mb, 1);
5497 mono_mb_emit_ldarg (mb, 2);
5498 mono_mb_emit_ldarg (mb, 4);
5499 if (klass->valuetype)
5500 mono_mb_emit_op (mb, CEE_BOX, klass);
5502 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5504 mono_mb_emit_byte (mb, CEE_RET);
5506 mono_mb_patch_branch (mb, pos);
5508 mono_mb_emit_ldarg (mb, 0);
5509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5510 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5511 mono_mb_emit_ldarg (mb, 3);
5512 mono_mb_emit_byte (mb, CEE_ADD);
5513 mono_mb_emit_ldarg (mb, 4);
5518 case MONO_TYPE_BOOLEAN:
5519 case MONO_TYPE_CHAR:
5528 case MONO_TYPE_ARRAY:
5529 case MONO_TYPE_SZARRAY:
5530 case MONO_TYPE_OBJECT:
5531 case MONO_TYPE_CLASS:
5532 case MONO_TYPE_STRING:
5536 case MONO_TYPE_FNPTR:
5537 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5539 case MONO_TYPE_VALUETYPE:
5540 g_assert (!klass->enumtype);
5541 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5543 case MONO_TYPE_GENERICINST:
5544 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5547 g_warning ("type %x not implemented", type->type);
5548 g_assert_not_reached ();
5551 mono_mb_emit_byte (mb, CEE_RET);
5553 res = mono_mb_create_and_cache (cache, klass,
5554 mb, sig, sig->param_count + 16);
5561 * generates IL code for the icall wrapper (the generated method
5562 * calls the unmanaged code in func)
5565 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5567 MonoMethodSignature *csig;
5568 MonoMethodBuilder *mb;
5572 g_assert (sig->pinvoke);
5574 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5576 mb->method->save_lmf = 1;
5578 /* we copy the signature, so that we can modify it */
5581 mono_mb_emit_byte (mb, CEE_LDARG_0);
5583 for (i = 0; i < sig->param_count; i++)
5584 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5586 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5587 if (check_exceptions)
5588 emit_thread_interrupt_checkpoint (mb);
5589 mono_mb_emit_byte (mb, CEE_RET);
5591 csig = signature_dup (mono_defaults.corlib, sig);
5593 if (csig->call_convention == MONO_CALL_VARARG)
5594 csig->call_convention = 0;
5596 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5603 MonoMethodBuilder *mb;
5604 MonoMethodSignature *sig;
5605 MonoMethodPInvoke *piinfo;
5606 int *orig_conv_args; /* Locals containing the original values of byref args */
5608 MonoClass *retobj_class;
5609 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5610 MonoImage *image; /* The image to use for looking up custom marshallers */
5611 } EmitMarshalContext;
5615 * This is invoked to convert arguments from the current types to
5616 * the underlying types expected by the platform routine. If required,
5617 * the methods create a temporary variable with the proper type, and return
5618 * the location for it (either the passed argument, or the newly allocated
5621 MARSHAL_ACTION_CONV_IN,
5624 * This operation is called to push the actual value that was optionally
5625 * converted on the first stage
5627 MARSHAL_ACTION_PUSH,
5630 * Convert byref arguments back or free resources allocated during the
5633 MARSHAL_ACTION_CONV_OUT,
5636 * The result from the unmanaged call is at the top of the stack when
5637 * this action is invoked. The result should be stored in the
5638 * third local variable slot.
5640 MARSHAL_ACTION_CONV_RESULT,
5642 MARSHAL_ACTION_MANAGED_CONV_IN,
5643 MARSHAL_ACTION_MANAGED_CONV_OUT,
5644 MARSHAL_ACTION_MANAGED_CONV_RESULT
5648 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5649 MonoMarshalSpec *spec,
5650 int conv_arg, MonoType **conv_arg_type,
5651 MarshalAction action)
5655 static MonoClass *ICustomMarshaler = NULL;
5656 static MonoMethod *cleanup_native, *cleanup_managed;
5657 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5658 MonoMethod *get_instance;
5659 MonoMethodBuilder *mb = m->mb;
5660 char *exception_msg = NULL;
5664 if (!ICustomMarshaler) {
5665 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5666 g_assert (ICustomMarshaler);
5668 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5669 g_assert (cleanup_native);
5670 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5671 g_assert (cleanup_managed);
5672 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5673 g_assert (marshal_managed_to_native);
5674 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5675 g_assert (marshal_native_to_managed);
5678 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5679 g_assert (mtype != NULL);
5680 mklass = mono_class_from_mono_type (mtype);
5681 g_assert (mklass != NULL);
5683 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5684 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5686 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5688 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5689 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5690 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5691 (get_sig->params [0]->type != MONO_TYPE_STRING))
5692 get_instance = NULL;
5696 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);
5698 /* Throw exception and emit compensation code if neccesary */
5699 if (exception_msg) {
5701 case MARSHAL_ACTION_CONV_IN:
5702 case MARSHAL_ACTION_CONV_RESULT:
5703 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5704 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5705 mono_mb_emit_byte (mb, CEE_POP);
5707 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5708 g_free (exception_msg);
5711 case MARSHAL_ACTION_PUSH:
5712 mono_mb_emit_byte (mb, CEE_LDNULL);
5720 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5721 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5724 case MARSHAL_ACTION_CONV_IN:
5726 case MONO_TYPE_CLASS:
5727 case MONO_TYPE_OBJECT:
5728 case MONO_TYPE_STRING:
5729 case MONO_TYPE_ARRAY:
5730 case MONO_TYPE_SZARRAY:
5731 case MONO_TYPE_VALUETYPE:
5735 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5736 g_assert_not_reached ();
5740 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5742 mono_mb_emit_byte (mb, CEE_LDNULL);
5743 mono_mb_emit_stloc (mb, conv_arg);
5745 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5748 /* Minic MS.NET behavior */
5749 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5752 /* Check for null */
5753 mono_mb_emit_ldarg (mb, argnum);
5755 mono_mb_emit_byte (mb, CEE_LDIND_I);
5756 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5758 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5760 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5762 mono_mb_emit_ldarg (mb, argnum);
5764 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5766 if (t->type == MONO_TYPE_VALUETYPE) {
5768 * Since we can't determine the type of the argument, we
5769 * will assume the unmanaged function takes a pointer.
5771 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5773 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5776 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5777 mono_mb_emit_stloc (mb, conv_arg);
5779 mono_mb_patch_branch (mb, pos2);
5782 case MARSHAL_ACTION_CONV_OUT:
5783 /* Check for null */
5784 mono_mb_emit_ldloc (mb, conv_arg);
5785 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5788 mono_mb_emit_ldarg (mb, argnum);
5790 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5792 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5794 mono_mb_emit_ldloc (mb, conv_arg);
5795 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5796 mono_mb_emit_byte (mb, CEE_STIND_REF);
5797 } else if (t->attrs &PARAM_ATTRIBUTE_OUT) {
5798 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5800 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5802 mono_mb_emit_ldloc (mb, conv_arg);
5803 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5805 /* We have nowhere to store the result */
5806 mono_mb_emit_byte (mb, CEE_POP);
5809 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5811 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5813 mono_mb_emit_ldloc (mb, conv_arg);
5815 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5817 mono_mb_patch_branch (mb, pos2);
5820 case MARSHAL_ACTION_PUSH:
5822 mono_mb_emit_ldloc_addr (mb, conv_arg);
5824 mono_mb_emit_ldloc (mb, conv_arg);
5827 case MARSHAL_ACTION_CONV_RESULT:
5828 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5830 mono_mb_emit_stloc (mb, 3);
5832 mono_mb_emit_ldloc (mb, 3);
5833 mono_mb_emit_stloc (mb, loc1);
5835 /* Check for null */
5836 mono_mb_emit_ldloc (mb, 3);
5837 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5839 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5841 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5842 mono_mb_emit_byte (mb, CEE_DUP);
5844 mono_mb_emit_ldloc (mb, 3);
5845 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5846 mono_mb_emit_stloc (mb, 3);
5848 mono_mb_emit_ldloc (mb, loc1);
5849 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5851 mono_mb_patch_branch (mb, pos2);
5854 case MARSHAL_ACTION_MANAGED_CONV_IN:
5855 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5857 mono_mb_emit_byte (mb, CEE_LDNULL);
5858 mono_mb_emit_stloc (mb, conv_arg);
5860 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5863 /* Check for null */
5864 mono_mb_emit_ldarg (mb, argnum);
5866 mono_mb_emit_byte (mb, CEE_LDIND_I);
5867 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5869 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_ldarg (mb, argnum);
5874 mono_mb_emit_byte (mb, CEE_LDIND_I);
5876 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5877 mono_mb_emit_stloc (mb, conv_arg);
5879 mono_mb_patch_branch (mb, pos2);
5882 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5883 g_assert (!t->byref);
5885 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5887 mono_mb_emit_stloc (mb, 3);
5889 mono_mb_emit_ldloc (mb, 3);
5890 mono_mb_emit_stloc (mb, loc1);
5892 /* Check for null */
5893 mono_mb_emit_ldloc (mb, 3);
5894 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5896 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5897 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5898 mono_mb_emit_byte (mb, CEE_DUP);
5900 mono_mb_emit_ldloc (mb, 3);
5901 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5902 mono_mb_emit_stloc (mb, 3);
5904 mono_mb_emit_ldloc (mb, loc1);
5905 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5907 mono_mb_patch_branch (mb, pos2);
5910 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5912 /* Check for null */
5913 mono_mb_emit_ldloc (mb, conv_arg);
5914 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5917 mono_mb_emit_ldarg (mb, argnum);
5919 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5921 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5923 mono_mb_emit_ldloc (mb, conv_arg);
5924 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5925 mono_mb_emit_byte (mb, CEE_STIND_I);
5928 /* Call CleanUpManagedData */
5929 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5931 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5933 mono_mb_emit_ldloc (mb, conv_arg);
5934 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5936 mono_mb_patch_branch (mb, pos2);
5940 g_assert_not_reached ();
5947 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5948 MonoMarshalSpec *spec,
5949 int conv_arg, MonoType **conv_arg_type,
5950 MarshalAction action)
5952 MonoMethodBuilder *mb = m->mb;
5955 case MARSHAL_ACTION_CONV_IN: {
5956 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5958 g_assert (t->type == MONO_TYPE_OBJECT);
5959 g_assert (!t->byref);
5961 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5962 mono_mb_emit_ldarg (mb, argnum);
5963 mono_mb_emit_icon (mb, encoding);
5964 mono_mb_emit_icon (mb, t->attrs);
5965 mono_mb_emit_icall (mb, mono_marshal_asany);
5966 mono_mb_emit_stloc (mb, conv_arg);
5970 case MARSHAL_ACTION_PUSH:
5971 mono_mb_emit_ldloc (mb, conv_arg);
5974 case MARSHAL_ACTION_CONV_OUT: {
5975 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5977 mono_mb_emit_ldarg (mb, argnum);
5978 mono_mb_emit_ldloc (mb, conv_arg);
5979 mono_mb_emit_icon (mb, encoding);
5980 mono_mb_emit_icon (mb, t->attrs);
5981 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5986 g_assert_not_reached ();
5993 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5994 MonoMarshalSpec *spec,
5995 int conv_arg, MonoType **conv_arg_type,
5996 MarshalAction action)
5998 MonoMethodBuilder *mb = m->mb;
6002 klass = t->data.klass;
6005 case MARSHAL_ACTION_CONV_IN:
6006 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6007 klass->blittable || klass->enumtype)
6010 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6012 /* store the address of the source into local variable 0 */
6014 mono_mb_emit_ldarg (mb, argnum);
6016 mono_mb_emit_ldarg_addr (mb, argnum);
6018 mono_mb_emit_stloc (mb, 0);
6020 /* allocate space for the native struct and
6021 * store the address into local variable 1 (dest) */
6022 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6023 mono_mb_emit_byte (mb, CEE_PREFIX1);
6024 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6025 mono_mb_emit_stloc (mb, conv_arg);
6028 mono_mb_emit_ldloc (mb, 0);
6029 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6032 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6034 mono_mb_emit_ldloc (mb, conv_arg);
6035 mono_mb_emit_stloc (mb, 1);
6037 /* emit valuetype conversion code */
6038 emit_struct_conv (mb, klass, FALSE);
6042 mono_mb_patch_branch (mb, pos);
6045 case MARSHAL_ACTION_PUSH:
6046 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6048 g_assert (!t->byref);
6050 /* Have to change the signature since the vtype is passed byref */
6051 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6053 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6054 klass->blittable || klass->enumtype)
6055 mono_mb_emit_ldarg_addr (mb, argnum);
6057 mono_mb_emit_ldloc (mb, conv_arg);
6061 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6062 klass->blittable || klass->enumtype) {
6063 mono_mb_emit_ldarg (mb, argnum);
6066 mono_mb_emit_ldloc (mb, conv_arg);
6068 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6069 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6073 case MARSHAL_ACTION_CONV_OUT:
6074 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6075 klass->blittable || klass->enumtype)
6079 /* dst = argument */
6080 mono_mb_emit_ldarg (mb, argnum);
6081 mono_mb_emit_stloc (mb, 1);
6083 mono_mb_emit_ldloc (mb, 1);
6084 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6086 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6087 /* src = tmp_locals [i] */
6088 mono_mb_emit_ldloc (mb, conv_arg);
6089 mono_mb_emit_stloc (mb, 0);
6091 /* emit valuetype conversion code */
6092 emit_struct_conv (mb, klass, TRUE);
6096 emit_struct_free (mb, klass, conv_arg);
6099 mono_mb_patch_branch (mb, pos);
6102 case MARSHAL_ACTION_CONV_RESULT:
6103 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6105 mono_mb_emit_stloc (mb, 3);
6108 /* load pointer to returned value type */
6109 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6110 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6111 /* store the address of the source into local variable 0 */
6112 mono_mb_emit_stloc (mb, 0);
6114 mono_mb_emit_ldloc_addr (mb, 3);
6115 mono_mb_emit_stloc (mb, 1);
6117 /* emit valuetype conversion code */
6118 emit_struct_conv (mb, klass, TRUE);
6121 case MARSHAL_ACTION_MANAGED_CONV_IN:
6122 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6123 klass->blittable || klass->enumtype) {
6128 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6130 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6134 mono_mb_emit_ldarg (mb, argnum);
6136 mono_mb_emit_ldarg_addr (mb, argnum);
6137 mono_mb_emit_stloc (mb, 0);
6140 mono_mb_emit_ldloc (mb, 0);
6141 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6144 mono_mb_emit_ldloc_addr (mb, conv_arg);
6145 mono_mb_emit_stloc (mb, 1);
6147 /* emit valuetype conversion code */
6148 emit_struct_conv (mb, klass, TRUE);
6151 mono_mb_patch_branch (mb, pos);
6154 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6155 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6156 klass->blittable || klass->enumtype) {
6160 /* Check for null */
6161 mono_mb_emit_ldarg (mb, argnum);
6162 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6165 mono_mb_emit_ldloc_addr (mb, conv_arg);
6166 mono_mb_emit_stloc (mb, 0);
6169 mono_mb_emit_ldarg (mb, argnum);
6170 mono_mb_emit_stloc (mb, 1);
6172 /* emit valuetype conversion code */
6173 emit_struct_conv (mb, klass, FALSE);
6175 mono_mb_patch_branch (mb, pos2);
6178 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6179 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6180 klass->blittable || klass->enumtype) {
6181 mono_mb_emit_stloc (mb, 3);
6186 /* load pointer to returned value type */
6187 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6188 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6190 /* store the address of the source into local variable 0 */
6191 mono_mb_emit_stloc (mb, 0);
6192 /* allocate space for the native struct and
6193 * store the address into dst_ptr */
6194 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6195 m->retobj_class = klass;
6196 g_assert (m->retobj_var);
6197 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6198 mono_mb_emit_byte (mb, CEE_CONV_I);
6199 mono_mb_emit_icall (mb, mono_marshal_alloc);
6200 mono_mb_emit_stloc (mb, 1);
6201 mono_mb_emit_ldloc (mb, 1);
6202 mono_mb_emit_stloc (mb, m->retobj_var);
6204 /* emit valuetype conversion code */
6205 emit_struct_conv (mb, klass, FALSE);
6209 g_assert_not_reached ();
6216 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6217 MonoMarshalSpec *spec,
6218 int conv_arg, MonoType **conv_arg_type,
6219 MarshalAction action)
6221 MonoMethodBuilder *mb = m->mb;
6222 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6223 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6227 case MARSHAL_ACTION_CONV_IN:
6228 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6229 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6232 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6235 mono_mb_emit_ldarg (mb, argnum);
6236 mono_mb_emit_byte (mb, CEE_LDIND_I);
6238 mono_mb_emit_ldarg (mb, argnum);
6242 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6243 MonoException *exc = mono_get_exception_not_implemented (msg);
6246 mono_raise_exception (exc);
6249 mono_mb_emit_icall (mb, conv_to_icall (conv));
6251 mono_mb_emit_stloc (mb, conv_arg);
6254 case MARSHAL_ACTION_CONV_OUT:
6255 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6257 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6258 mono_mb_emit_exception_marshal_directive (mb, msg);
6262 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6263 mono_mb_emit_ldarg (mb, argnum);
6264 mono_mb_emit_ldloc (mb, conv_arg);
6265 mono_mb_emit_icall (mb, conv_to_icall (conv));
6266 mono_mb_emit_byte (mb, CEE_STIND_REF);
6270 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6271 mono_mb_emit_ldloc (mb, conv_arg);
6272 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6273 mono_mb_emit_icall (mb, mono_free_bstr);
6275 mono_mb_emit_icall (mb, mono_marshal_free);
6279 case MARSHAL_ACTION_PUSH:
6281 mono_mb_emit_ldloc_addr (mb, conv_arg);
6283 mono_mb_emit_ldloc (mb, conv_arg);
6286 case MARSHAL_ACTION_CONV_RESULT:
6287 mono_mb_emit_stloc (mb, 0);
6289 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6291 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6292 mono_mb_emit_exception_marshal_directive (mb, msg);
6296 mono_mb_emit_ldloc (mb, 0);
6297 mono_mb_emit_icall (mb, conv_to_icall (conv));
6298 mono_mb_emit_stloc (mb, 3);
6300 /* free the string */
6301 mono_mb_emit_ldloc (mb, 0);
6302 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6303 mono_mb_emit_icall (mb, mono_free_bstr);
6305 mono_mb_emit_icall (mb, mono_marshal_free);
6308 case MARSHAL_ACTION_MANAGED_CONV_IN:
6314 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6315 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6317 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6319 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6320 mono_mb_emit_exception_marshal_directive (mb, msg);
6324 mono_mb_emit_ldarg (mb, argnum);
6325 mono_mb_emit_icall (mb, conv_to_icall (conv));
6326 mono_mb_emit_stloc (mb, conv_arg);
6329 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6330 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6331 /* We need to make a copy so the caller is able to free it */
6332 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6334 mono_mb_emit_icall (mb, conv_to_icall (conv));
6335 mono_mb_emit_stloc (mb, 3);
6339 g_assert_not_reached ();
6346 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6347 MonoMarshalSpec *spec, int conv_arg,
6348 MonoType **conv_arg_type, MarshalAction action)
6350 MonoMethodBuilder *mb = m->mb;
6353 case MARSHAL_ACTION_CONV_IN: {
6354 MonoType *intptr_type;
6355 int dar_release_slot, pos;
6357 intptr_type = &mono_defaults.int_class->byval_arg;
6358 conv_arg = mono_mb_add_local (mb, intptr_type);
6359 *conv_arg_type = intptr_type;
6361 if (!sh_dangerous_add_ref)
6362 init_safe_handle ();
6364 mono_mb_emit_ldarg (mb, argnum);
6365 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6366 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6368 mono_mb_patch_branch (mb, pos);
6371 * My tests in show that ref SafeHandles are not really
6372 * passed as ref objects. Instead a NULL is passed as the
6375 mono_mb_emit_icon (mb, 0);
6376 mono_mb_emit_stloc (mb, conv_arg);
6380 /* Create local to hold the ref parameter to DangerousAddRef */
6381 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6383 /* set release = false; */
6384 mono_mb_emit_icon (mb, 0);
6385 mono_mb_emit_stloc (mb, dar_release_slot);
6387 /* safehandle.DangerousAddRef (ref release) */
6388 mono_mb_emit_ldarg (mb, argnum);
6389 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6390 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6392 /* Pull the handle field from SafeHandle */
6393 mono_mb_emit_ldarg (mb, argnum);
6394 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6395 mono_mb_emit_byte (mb, CEE_LDIND_I);
6396 mono_mb_emit_stloc (mb, conv_arg);
6401 case MARSHAL_ACTION_PUSH:
6403 mono_mb_emit_ldloc_addr (mb, conv_arg);
6405 mono_mb_emit_ldloc (mb, conv_arg);
6408 case MARSHAL_ACTION_CONV_OUT: {
6409 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6410 int dar_release_slot = conv_arg + 1;
6413 if (!sh_dangerous_release)
6414 init_safe_handle ();
6420 * My tests indicate that ref SafeHandles parameters are not actually
6421 * passed by ref, but instead a new Handle is created regardless of
6422 * whether a change happens in the unmanaged side.
6424 * Also, the Handle is created before calling into unmanaged code,
6425 * but we do not support that mechanism (getting to the original
6426 * handle) and it makes no difference where we create this
6428 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6430 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6433 /* refval = new SafeHandleDerived ()*/
6434 mono_mb_emit_ldarg (mb, argnum);
6435 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6436 mono_mb_emit_byte (mb, CEE_STIND_REF);
6438 /* refval.handle = returned_handle */
6439 mono_mb_emit_ldarg (mb, argnum);
6440 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6441 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6442 mono_mb_emit_ldloc (mb, conv_arg);
6443 mono_mb_emit_byte (mb, CEE_STIND_I);
6445 mono_mb_emit_ldloc (mb, dar_release_slot);
6446 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6447 mono_mb_emit_ldarg (mb, argnum);
6448 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6449 mono_mb_patch_branch (mb, label_next);
6454 case MARSHAL_ACTION_CONV_RESULT: {
6455 MonoMethod *ctor = NULL;
6456 int intptr_handle_slot;
6458 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6459 mono_mb_emit_byte (mb, CEE_POP);
6460 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6464 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6466 mono_mb_emit_byte (mb, CEE_POP);
6467 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6470 /* Store the IntPtr results into a local */
6471 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6472 mono_mb_emit_stloc (mb, intptr_handle_slot);
6474 /* Create return value */
6475 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6476 mono_mb_emit_stloc (mb, 3);
6478 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6479 mono_mb_emit_ldloc (mb, 3);
6480 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6481 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6482 mono_mb_emit_byte (mb, CEE_STIND_I);
6486 case MARSHAL_ACTION_MANAGED_CONV_IN:
6487 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6490 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6491 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6494 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6495 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6498 printf ("Unhandled case for MarshalAction: %d\n", action);
6505 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6506 MonoMarshalSpec *spec, int conv_arg,
6507 MonoType **conv_arg_type, MarshalAction action)
6509 MonoMethodBuilder *mb = m->mb;
6512 case MARSHAL_ACTION_CONV_IN: {
6513 MonoType *intptr_type;
6515 intptr_type = &mono_defaults.int_class->byval_arg;
6516 conv_arg = mono_mb_add_local (mb, intptr_type);
6517 *conv_arg_type = intptr_type;
6520 mono_mb_emit_exception_marshal_directive (mb,
6521 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6524 mono_mb_emit_ldarg_addr (mb, argnum);
6525 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6526 mono_mb_emit_byte (mb, CEE_ADD);
6527 mono_mb_emit_byte (mb, CEE_LDIND_I);
6528 mono_mb_emit_stloc (mb, conv_arg);
6532 case MARSHAL_ACTION_PUSH:
6533 mono_mb_emit_ldloc (mb, conv_arg);
6536 case MARSHAL_ACTION_CONV_OUT: {
6537 /* no resource release required */
6541 case MARSHAL_ACTION_CONV_RESULT: {
6542 mono_mb_emit_exception_marshal_directive (mb,
6543 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6547 case MARSHAL_ACTION_MANAGED_CONV_IN:
6548 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6551 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6552 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6555 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6556 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6559 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6566 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6567 MonoMarshalSpec *spec,
6568 int conv_arg, MonoType **conv_arg_type,
6569 MarshalAction action)
6571 MonoMethodBuilder *mb = m->mb;
6572 MonoClass *klass = t->data.klass;
6575 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6576 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6580 case MARSHAL_ACTION_CONV_IN:
6581 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6582 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6584 m->orig_conv_args [argnum] = 0;
6586 if (klass->delegate) {
6588 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6589 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6590 mono_mb_emit_exception_marshal_directive (mb, msg);
6592 mono_mb_emit_byte (mb, CEE_LDNULL);
6593 mono_mb_emit_stloc (mb, conv_arg);
6595 mono_mb_emit_ldarg (mb, argnum);
6596 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6597 mono_mb_emit_stloc (mb, conv_arg);
6599 } else if (klass == mono_defaults.stringbuilder_class) {
6600 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6601 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6603 g_assert (!t->byref);
6604 mono_mb_emit_ldarg (mb, argnum);
6607 mono_mb_emit_icall (mb, conv_to_icall (conv));
6609 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6610 MonoException *exc = mono_get_exception_not_implemented (msg);
6613 mono_raise_exception (exc);
6616 mono_mb_emit_stloc (mb, conv_arg);
6617 } else if (klass->blittable) {
6618 mono_mb_emit_byte (mb, CEE_LDNULL);
6619 mono_mb_emit_stloc (mb, conv_arg);
6621 mono_mb_emit_ldarg (mb, argnum);
6622 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6624 mono_mb_emit_ldarg (mb, argnum);
6625 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6626 mono_mb_emit_stloc (mb, conv_arg);
6628 mono_mb_patch_branch (mb, pos);
6631 mono_mb_emit_byte (mb, CEE_LDNULL);
6632 mono_mb_emit_stloc (mb, conv_arg);
6635 /* we dont need any conversions for out parameters */
6636 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6639 mono_mb_emit_ldarg (mb, argnum);
6640 mono_mb_emit_byte (mb, CEE_LDIND_I);
6643 mono_mb_emit_ldarg (mb, argnum);
6644 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6645 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6648 /* store the address of the source into local variable 0 */
6649 mono_mb_emit_stloc (mb, 0);
6650 mono_mb_emit_ldloc (mb, 0);
6651 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6653 /* allocate space for the native struct and store the address */
6654 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6655 mono_mb_emit_byte (mb, CEE_PREFIX1);
6656 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6657 mono_mb_emit_stloc (mb, conv_arg);
6660 /* Need to store the original buffer so we can free it later */
6661 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6662 mono_mb_emit_ldloc (mb, conv_arg);
6663 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6666 /* set the src_ptr */
6667 mono_mb_emit_ldloc (mb, 0);
6668 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6669 mono_mb_emit_stloc (mb, 0);
6672 mono_mb_emit_ldloc (mb, conv_arg);
6673 mono_mb_emit_stloc (mb, 1);
6675 /* emit valuetype conversion code */
6676 emit_struct_conv (mb, klass, FALSE);
6678 mono_mb_patch_branch (mb, pos);
6682 case MARSHAL_ACTION_CONV_OUT:
6683 if (klass == mono_defaults.stringbuilder_class) {
6685 MonoMarshalNative encoding;
6686 MonoMarshalConv conv;
6688 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6689 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6691 g_assert (!t->byref);
6692 g_assert (encoding != -1);
6694 mono_mb_emit_ldarg (mb, argnum);
6695 mono_mb_emit_ldloc (mb, conv_arg);
6697 mono_mb_emit_icall (mb, conv_to_icall (conv));
6700 mono_mb_emit_ldloc (mb, conv_arg);
6701 mono_mb_emit_icall (mb, mono_marshal_free);
6706 if (klass->delegate) {
6708 mono_mb_emit_ldarg (mb, argnum);
6709 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6710 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6711 mono_mb_emit_ldloc (mb, conv_arg);
6712 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6713 mono_mb_emit_byte (mb, CEE_STIND_REF);
6718 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6719 /* allocate a new object */
6720 mono_mb_emit_ldarg (mb, argnum);
6721 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6722 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6723 mono_mb_emit_byte (mb, CEE_STIND_REF);
6726 /* dst = *argument */
6727 mono_mb_emit_ldarg (mb, argnum);
6730 mono_mb_emit_byte (mb, CEE_LDIND_I);
6732 mono_mb_emit_stloc (mb, 1);
6734 mono_mb_emit_ldloc (mb, 1);
6735 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6737 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6738 mono_mb_emit_ldloc (mb, 1);
6739 mono_mb_emit_icon (mb, sizeof (MonoObject));
6740 mono_mb_emit_byte (mb, CEE_ADD);
6741 mono_mb_emit_stloc (mb, 1);
6743 /* src = tmp_locals [i] */
6744 mono_mb_emit_ldloc (mb, conv_arg);
6745 mono_mb_emit_stloc (mb, 0);
6747 /* emit valuetype conversion code */
6748 emit_struct_conv (mb, t->data.klass, TRUE);
6750 /* Free the structure returned by the native code */
6751 emit_struct_free (mb, klass, conv_arg);
6753 if (m->orig_conv_args [argnum]) {
6755 * If the native function changed the pointer, then free
6756 * the original structure plus the new pointer.
6758 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6759 mono_mb_emit_ldloc (mb, conv_arg);
6760 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6762 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6763 g_assert (m->orig_conv_args [argnum]);
6765 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6768 mono_mb_emit_ldloc (mb, conv_arg);
6769 mono_mb_emit_icall (mb, g_free);
6771 mono_mb_patch_branch (mb, pos2);
6775 /* Free the original structure passed to native code */
6776 emit_struct_free (mb, klass, conv_arg);
6778 mono_mb_patch_branch (mb, pos);
6781 case MARSHAL_ACTION_PUSH:
6783 mono_mb_emit_ldloc_addr (mb, conv_arg);
6785 mono_mb_emit_ldloc (mb, conv_arg);
6788 case MARSHAL_ACTION_CONV_RESULT:
6789 if (klass->delegate) {
6790 g_assert (!t->byref);
6791 mono_mb_emit_stloc (mb, 0);
6792 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6793 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6794 mono_mb_emit_ldloc (mb, 0);
6795 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6796 mono_mb_emit_stloc (mb, 3);
6799 mono_mb_emit_stloc (mb, 0);
6801 /* Make a copy since emit_conv modifies local 0 */
6802 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6803 mono_mb_emit_ldloc (mb, 0);
6804 mono_mb_emit_stloc (mb, loc);
6806 mono_mb_emit_byte (mb, CEE_LDNULL);
6807 mono_mb_emit_stloc (mb, 3);
6809 mono_mb_emit_ldloc (mb, 0);
6810 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6812 /* allocate result object */
6814 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6815 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6816 mono_mb_emit_stloc (mb, 3);
6820 mono_mb_emit_ldloc (mb, 3);
6821 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6822 mono_mb_emit_stloc (mb, 1);
6824 /* emit conversion code */
6825 emit_struct_conv (mb, klass, TRUE);
6827 emit_struct_free (mb, klass, loc);
6829 /* Free the pointer allocated by unmanaged code */
6830 mono_mb_emit_ldloc (mb, loc);
6831 mono_mb_emit_icall (mb, g_free);
6832 mono_mb_patch_branch (mb, pos);
6836 case MARSHAL_ACTION_MANAGED_CONV_IN:
6837 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6839 if (klass->delegate) {
6840 g_assert (!t->byref);
6841 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6842 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6843 mono_mb_emit_ldarg (mb, argnum);
6844 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6845 mono_mb_emit_stloc (mb, conv_arg);
6849 if (klass == mono_defaults.stringbuilder_class) {
6850 MonoMarshalNative encoding;
6852 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6855 g_assert (encoding == MONO_NATIVE_LPSTR);
6857 g_assert (!t->byref);
6858 g_assert (encoding != -1);
6860 mono_mb_emit_ldarg (mb, argnum);
6861 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6862 mono_mb_emit_stloc (mb, conv_arg);
6866 /* The class can not have an automatic layout */
6867 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6868 mono_mb_emit_auto_layout_exception (mb, klass);
6872 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6873 mono_mb_emit_byte (mb, CEE_LDNULL);
6874 mono_mb_emit_stloc (mb, conv_arg);
6879 mono_mb_emit_ldarg (mb, argnum);
6883 /* Check for NULL and raise an exception */
6884 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6886 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6888 mono_mb_patch_branch (mb, pos2);
6889 mono_mb_emit_ldarg (mb, argnum);
6890 mono_mb_emit_byte (mb, CEE_LDIND_I);
6893 mono_mb_emit_stloc (mb, 0);
6895 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6896 mono_mb_emit_stloc (mb, conv_arg);
6898 mono_mb_emit_ldloc (mb, 0);
6899 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6901 /* Create and set dst */
6902 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6903 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6904 mono_mb_emit_stloc (mb, conv_arg);
6905 mono_mb_emit_ldloc (mb, conv_arg);
6906 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6907 mono_mb_emit_stloc (mb, 1);
6909 /* emit valuetype conversion code */
6910 emit_struct_conv (mb, klass, TRUE);
6912 mono_mb_patch_branch (mb, pos);
6915 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6917 /* Check for null */
6918 mono_mb_emit_ldloc (mb, conv_arg);
6919 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6920 mono_mb_emit_ldarg (mb, argnum);
6921 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6922 mono_mb_emit_byte (mb, CEE_STIND_REF);
6923 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6925 mono_mb_patch_branch (mb, pos);
6928 mono_mb_emit_ldloc (mb, conv_arg);
6929 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6930 mono_mb_emit_stloc (mb, 0);
6932 /* Allocate and set dest */
6933 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6934 mono_mb_emit_byte (mb, CEE_CONV_I);
6935 mono_mb_emit_icall (mb, mono_marshal_alloc);
6936 mono_mb_emit_stloc (mb, 1);
6938 /* Update argument pointer */
6939 mono_mb_emit_ldarg (mb, argnum);
6940 mono_mb_emit_ldloc (mb, 1);
6941 mono_mb_emit_byte (mb, CEE_STIND_I);
6943 /* emit valuetype conversion code */
6944 emit_struct_conv (mb, klass, FALSE);
6946 mono_mb_patch_branch (mb, pos2);
6948 /* byval [Out] marshalling */
6950 /* FIXME: Handle null */
6953 mono_mb_emit_ldloc (mb, conv_arg);
6954 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6955 mono_mb_emit_stloc (mb, 0);
6958 mono_mb_emit_ldarg (mb, argnum);
6959 mono_mb_emit_stloc (mb, 1);
6961 /* emit valuetype conversion code */
6962 emit_struct_conv (mb, klass, FALSE);
6966 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6967 if (klass->delegate) {
6968 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6969 mono_mb_emit_stloc (mb, 3);
6973 /* The class can not have an automatic layout */
6974 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6975 mono_mb_emit_auto_layout_exception (mb, klass);
6979 mono_mb_emit_stloc (mb, 0);
6980 /* Check for null */
6981 mono_mb_emit_ldloc (mb, 0);
6982 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6983 mono_mb_emit_byte (mb, CEE_LDNULL);
6984 mono_mb_emit_stloc (mb, 3);
6985 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6987 mono_mb_patch_branch (mb, pos);
6990 mono_mb_emit_ldloc (mb, 0);
6991 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6992 mono_mb_emit_stloc (mb, 0);
6994 /* Allocate and set dest */
6995 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6996 mono_mb_emit_byte (mb, CEE_CONV_I);
6997 mono_mb_emit_icall (mb, mono_marshal_alloc);
6998 mono_mb_emit_byte (mb, CEE_DUP);
6999 mono_mb_emit_stloc (mb, 1);
7000 mono_mb_emit_stloc (mb, 3);
7002 emit_struct_conv (mb, klass, FALSE);
7004 mono_mb_patch_branch (mb, pos2);
7008 g_assert_not_reached ();
7015 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7016 MonoMarshalSpec *spec,
7017 int conv_arg, MonoType **conv_arg_type,
7018 MarshalAction action)
7020 MonoMethodBuilder *mb = m->mb;
7021 MonoClass *klass = t->data.klass;
7022 static MonoMethod* get_object_for_iunknown = NULL;
7023 static MonoMethod* get_iunknown_for_object_internal = NULL;
7024 static MonoMethod* get_com_interface_for_object_internal = NULL;
7025 static MonoMethod* get_idispatch_for_object_internal = NULL;
7026 static MonoMethod* marshal_release = NULL;
7027 static MonoMethod* AddRef = NULL;
7028 if (!get_object_for_iunknown)
7029 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7030 if (!get_iunknown_for_object_internal)
7031 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7032 if (!get_idispatch_for_object_internal)
7033 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7034 if (!get_com_interface_for_object_internal)
7035 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7036 if (!marshal_release)
7037 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7039 /* COM types are initialized lazily */
7040 mono_init_com_types ();
7043 case MARSHAL_ACTION_CONV_IN: {
7044 guint32 pos_null = 0;
7046 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7047 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7049 mono_mb_emit_ptr (mb, NULL);
7050 mono_mb_emit_stloc (mb, conv_arg);
7052 /* we dont need any conversions for out parameters */
7053 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7056 mono_mb_emit_ldarg (mb, argnum);
7058 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7059 /* if null just break, conv arg was already inited to 0 */
7060 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7062 mono_mb_emit_ldarg (mb, argnum);
7064 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7066 if (klass && klass != mono_defaults.object_class) {
7067 mono_mb_emit_ptr (mb, t);
7068 mono_mb_emit_icall (mb, type_from_handle);
7069 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7071 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7072 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7073 else if (spec->native == MONO_NATIVE_IDISPATCH)
7074 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7075 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7076 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7078 g_assert_not_reached ();
7079 mono_mb_emit_stloc (mb, conv_arg);
7080 mono_mb_patch_short_branch (mb, pos_null);
7084 case MARSHAL_ACTION_CONV_OUT: {
7085 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7087 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7088 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7090 mono_mb_emit_ldarg (mb, argnum);
7091 mono_mb_emit_byte (mb, CEE_LDNULL);
7092 mono_mb_emit_byte (mb, CEE_STIND_REF);
7094 mono_mb_emit_ldloc (mb, conv_arg);
7095 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7097 mono_mb_emit_ldloc (mb, conv_arg);
7098 mono_mb_emit_icon (mb, TRUE);
7099 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7100 mono_mb_emit_stloc (mb, ccw_obj);
7101 mono_mb_emit_ldloc (mb, ccw_obj);
7102 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7104 mono_mb_emit_ldarg (mb, argnum);
7105 mono_mb_emit_ldloc (mb, conv_arg);
7106 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7108 if (klass && klass != mono_defaults.object_class)
7109 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7110 mono_mb_emit_byte (mb, CEE_STIND_REF);
7112 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7114 /* is already managed object */
7115 mono_mb_patch_short_branch (mb, pos_ccw);
7116 mono_mb_emit_ldarg (mb, argnum);
7117 mono_mb_emit_ldloc (mb, ccw_obj);
7119 if (klass && klass != mono_defaults.object_class)
7120 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7121 mono_mb_emit_byte (mb, CEE_STIND_REF);
7123 mono_mb_patch_short_branch (mb, pos_end);
7125 /* need to call Release to follow COM rules of ownership */
7126 mono_mb_emit_ldloc (mb, conv_arg);
7127 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7128 mono_mb_emit_byte (mb, CEE_POP);
7131 mono_mb_patch_short_branch (mb, pos_null);
7135 case MARSHAL_ACTION_PUSH:
7137 mono_mb_emit_ldloc_addr (mb, conv_arg);
7139 mono_mb_emit_ldloc (mb, conv_arg);
7142 case MARSHAL_ACTION_CONV_RESULT: {
7143 int ccw_obj, ret_ptr;
7144 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7145 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7146 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7148 /* store return value */
7149 mono_mb_emit_stloc (mb, ret_ptr);
7151 mono_mb_emit_ldloc (mb, ret_ptr);
7152 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7154 mono_mb_emit_ldloc (mb, ret_ptr);
7155 mono_mb_emit_icon (mb, TRUE);
7156 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7157 mono_mb_emit_stloc (mb, ccw_obj);
7158 mono_mb_emit_ldloc (mb, ccw_obj);
7159 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7161 mono_mb_emit_ldloc (mb, ret_ptr);
7162 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7164 if (klass && klass != mono_defaults.object_class)
7165 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7166 mono_mb_emit_stloc (mb, 3);
7168 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7170 /* is already managed object */
7171 mono_mb_patch_short_branch (mb, pos_ccw);
7172 mono_mb_emit_ldloc (mb, ccw_obj);
7174 if (klass && klass != mono_defaults.object_class)
7175 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7176 mono_mb_emit_stloc (mb, 3);
7178 mono_mb_patch_short_branch (mb, pos_end);
7180 /* need to call Release to follow COM rules of ownership */
7181 mono_mb_emit_ldloc (mb, ret_ptr);
7182 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7183 mono_mb_emit_byte (mb, CEE_POP);
7186 mono_mb_patch_short_branch (mb, pos_null);
7190 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7192 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7193 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7195 klass = mono_class_from_mono_type (t);
7196 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7197 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7199 mono_mb_emit_byte (mb, CEE_LDNULL);
7200 mono_mb_emit_stloc (mb, conv_arg);
7201 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7204 mono_mb_emit_ldarg (mb, argnum);
7206 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7207 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7209 mono_mb_emit_ldarg (mb, argnum);
7211 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7212 mono_mb_emit_icon (mb, TRUE);
7213 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7214 mono_mb_emit_stloc (mb, ccw_obj);
7215 mono_mb_emit_ldloc (mb, ccw_obj);
7216 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7219 mono_mb_emit_ldarg (mb, argnum);
7221 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7222 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7224 if (klass && klass != mono_defaults.object_class)
7225 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7226 mono_mb_emit_stloc (mb, conv_arg);
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);
7232 if (klass && klass != mono_defaults.object_class)
7233 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7234 mono_mb_emit_stloc (mb, conv_arg);
7236 mono_mb_patch_short_branch (mb, pos_end);
7238 mono_mb_patch_short_branch (mb, pos_null);
7242 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7243 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7244 guint32 pos_null = 0;
7247 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7249 mono_mb_emit_ldloc (mb, conv_arg);
7250 /* if null just break, conv arg was already inited to 0 */
7251 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7253 /* to store later */
7254 mono_mb_emit_ldarg (mb, argnum);
7255 mono_mb_emit_ldloc (mb, conv_arg);
7256 if (klass && klass != mono_defaults.object_class) {
7257 mono_mb_emit_ptr (mb, t);
7258 mono_mb_emit_icall (mb, type_from_handle);
7259 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7261 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7262 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7263 else if (spec->native == MONO_NATIVE_IDISPATCH)
7264 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7265 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7266 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7268 g_assert_not_reached ();
7269 mono_mb_emit_byte (mb, CEE_STIND_I);
7271 mono_mb_emit_ldarg (mb, argnum);
7272 mono_mb_emit_byte (mb, CEE_LDIND_I);
7273 mono_mb_emit_managed_call (mb, AddRef, NULL);
7274 mono_mb_emit_byte (mb, CEE_POP);
7276 mono_mb_patch_short_branch (mb, pos_null);
7281 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7282 guint32 pos_null = 0;
7284 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7287 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7289 /* store return value */
7290 mono_mb_emit_stloc (mb, ccw_obj);
7292 mono_mb_emit_ldloc (mb, ccw_obj);
7294 /* if null just break, conv arg was already inited to 0 */
7295 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7297 /* to store later */
7298 mono_mb_emit_ldloc (mb, ccw_obj);
7299 if (klass && klass != mono_defaults.object_class) {
7300 mono_mb_emit_ptr (mb, t);
7301 mono_mb_emit_icall (mb, type_from_handle);
7302 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7304 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7305 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7306 else if (spec->native == MONO_NATIVE_IDISPATCH)
7307 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7308 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7309 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7311 g_assert_not_reached ();
7312 mono_mb_emit_stloc (mb, 3);
7313 mono_mb_emit_ldloc (mb, 3);
7315 mono_mb_emit_managed_call (mb, AddRef, NULL);
7316 mono_mb_emit_byte (mb, CEE_POP);
7318 mono_mb_patch_short_branch (mb, pos_null);
7323 g_assert_not_reached ();
7330 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7331 MonoMarshalSpec *spec,
7332 int conv_arg, MonoType **conv_arg_type,
7333 MarshalAction action)
7335 MonoMethodBuilder *mb = m->mb;
7336 static MonoMethod *get_object_for_native_variant = NULL;
7337 static MonoMethod *get_native_variant_for_object = NULL;
7339 mono_init_com_types ();
7341 if (!get_object_for_native_variant)
7342 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7343 g_assert (get_object_for_native_variant);
7345 if (!get_native_variant_for_object)
7346 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7347 g_assert (get_native_variant_for_object);
7350 case MARSHAL_ACTION_CONV_IN: {
7351 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7354 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7356 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7358 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7361 mono_mb_emit_ldarg (mb, argnum);
7363 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7364 mono_mb_emit_ldloc_addr (mb, conv_arg);
7365 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7369 case MARSHAL_ACTION_CONV_OUT: {
7370 static MonoMethod *variant_clear = NULL;
7373 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7374 g_assert (variant_clear);
7378 mono_mb_emit_ldarg (mb, argnum);
7379 mono_mb_emit_ldloc_addr (mb, conv_arg);
7380 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7381 mono_mb_emit_byte (mb, CEE_STIND_REF);
7384 mono_mb_emit_ldloc_addr (mb, conv_arg);
7385 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7389 case MARSHAL_ACTION_PUSH:
7391 mono_mb_emit_ldloc_addr (mb, conv_arg);
7393 mono_mb_emit_ldloc (mb, conv_arg);
7396 case MARSHAL_ACTION_CONV_RESULT: {
7397 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7398 mono_mb_emit_exception_marshal_directive (mb, msg);
7402 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7403 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7406 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7408 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7410 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7414 mono_mb_emit_ldarg (mb, argnum);
7416 mono_mb_emit_ldarg_addr (mb, argnum);
7417 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7418 mono_mb_emit_stloc (mb, conv_arg);
7422 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7424 mono_mb_emit_ldloc (mb, conv_arg);
7425 mono_mb_emit_ldarg (mb, argnum);
7426 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7431 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7432 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7433 mono_mb_emit_exception_marshal_directive (mb, msg);
7438 g_assert_not_reached ();
7445 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7446 MonoMarshalSpec *spec,
7447 int conv_arg, MonoType **conv_arg_type,
7448 MarshalAction action)
7450 MonoMethodBuilder *mb = m->mb;
7451 MonoClass *klass = mono_class_from_mono_type (t);
7452 gboolean need_convert, need_free;
7453 MonoMarshalNative encoding;
7455 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7458 case MARSHAL_ACTION_CONV_IN:
7459 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7460 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7462 if (klass->element_class->blittable) {
7463 mono_mb_emit_ldarg (mb, argnum);
7465 mono_mb_emit_byte (mb, CEE_LDIND_I);
7466 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7467 mono_mb_emit_stloc (mb, conv_arg);
7470 guint32 label1, label2, label3;
7471 int index_var, src_var, dest_ptr, esize;
7472 MonoMarshalConv conv;
7473 gboolean is_string = FALSE;
7475 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7477 eklass = klass->element_class;
7479 if (eklass == mono_defaults.string_class) {
7481 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7483 else if (eklass == mono_defaults.stringbuilder_class) {
7485 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7490 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7491 mono_mb_emit_ldarg (mb, argnum);
7493 mono_mb_emit_byte (mb, CEE_LDIND_I);
7494 mono_mb_emit_stloc (mb, src_var);
7497 mono_mb_emit_ldloc (mb, src_var);
7498 mono_mb_emit_stloc (mb, conv_arg);
7499 mono_mb_emit_ldloc (mb, src_var);
7500 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7504 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7505 MonoException *exc = mono_get_exception_not_implemented (msg);
7508 mono_raise_exception (exc);
7513 esize = sizeof (gpointer);
7515 esize = mono_class_native_size (eklass, NULL);
7517 /* allocate space for the native struct and store the address */
7518 mono_mb_emit_icon (mb, esize);
7519 mono_mb_emit_ldloc (mb, src_var);
7520 mono_mb_emit_byte (mb, CEE_LDLEN);
7522 if (eklass == mono_defaults.string_class) {
7523 /* Make the array bigger for the terminating null */
7524 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7525 mono_mb_emit_byte (mb, CEE_ADD);
7527 mono_mb_emit_byte (mb, CEE_MUL);
7528 mono_mb_emit_byte (mb, CEE_PREFIX1);
7529 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7530 mono_mb_emit_stloc (mb, conv_arg);
7532 mono_mb_emit_ldloc (mb, conv_arg);
7533 mono_mb_emit_stloc (mb, dest_ptr);
7535 /* Emit marshalling loop */
7536 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7537 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7538 mono_mb_emit_stloc (mb, index_var);
7539 label2 = mono_mb_get_label (mb);
7540 mono_mb_emit_ldloc (mb, index_var);
7541 mono_mb_emit_ldloc (mb, src_var);
7542 mono_mb_emit_byte (mb, CEE_LDLEN);
7543 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7545 /* Emit marshalling code */
7548 mono_mb_emit_ldloc (mb, dest_ptr);
7549 mono_mb_emit_ldloc (mb, src_var);
7550 mono_mb_emit_ldloc (mb, index_var);
7551 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7552 mono_mb_emit_icall (mb, conv_to_icall (conv));
7553 mono_mb_emit_byte (mb, CEE_STIND_I);
7555 /* set the src_ptr */
7556 mono_mb_emit_ldloc (mb, src_var);
7557 mono_mb_emit_ldloc (mb, index_var);
7558 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7559 mono_mb_emit_stloc (mb, 0);
7562 mono_mb_emit_ldloc (mb, dest_ptr);
7563 mono_mb_emit_stloc (mb, 1);
7565 /* emit valuetype conversion code */
7566 emit_struct_conv (mb, eklass, FALSE);
7569 mono_mb_emit_add_to_local (mb, index_var, 1);
7570 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7572 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7574 mono_mb_patch_branch (mb, label3);
7576 if (eklass == mono_defaults.string_class) {
7577 /* Null terminate */
7578 mono_mb_emit_ldloc (mb, dest_ptr);
7579 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7580 mono_mb_emit_byte (mb, CEE_STIND_REF);
7583 mono_mb_patch_branch (mb, label1);
7588 case MARSHAL_ACTION_CONV_OUT:
7589 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7590 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);
7591 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7594 if (need_convert || need_free) {
7595 /* FIXME: Optimize blittable case */
7597 guint32 label1, label2, label3;
7598 int index_var, src_ptr, loc, esize;
7600 eklass = klass->element_class;
7601 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7602 esize = sizeof (gpointer);
7604 esize = mono_class_native_size (eklass, NULL);
7605 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7606 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7609 mono_mb_emit_ldarg (mb, argnum);
7611 mono_mb_emit_byte (mb, CEE_LDIND_I);
7612 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7614 mono_mb_emit_ldloc (mb, conv_arg);
7615 mono_mb_emit_stloc (mb, src_ptr);
7617 /* Emit marshalling loop */
7618 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7619 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7620 mono_mb_emit_stloc (mb, index_var);
7621 label2 = mono_mb_get_label (mb);
7622 mono_mb_emit_ldloc (mb, index_var);
7623 mono_mb_emit_ldarg (mb, argnum);
7625 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7626 mono_mb_emit_byte (mb, CEE_LDLEN);
7627 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7629 /* Emit marshalling code */
7631 if (eklass == mono_defaults.stringbuilder_class) {
7632 gboolean need_free2;
7633 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7635 g_assert (conv != -1);
7638 mono_mb_emit_ldarg (mb, argnum);
7640 mono_mb_emit_byte (mb, CEE_LDIND_I);
7641 mono_mb_emit_ldloc (mb, index_var);
7642 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7645 mono_mb_emit_ldloc (mb, src_ptr);
7646 mono_mb_emit_byte (mb, CEE_LDIND_I);
7648 mono_mb_emit_icall (mb, conv_to_icall (conv));
7652 mono_mb_emit_ldloc (mb, src_ptr);
7653 mono_mb_emit_byte (mb, CEE_LDIND_I);
7655 mono_mb_emit_icall (mb, mono_marshal_free);
7658 else if (eklass == mono_defaults.string_class) {
7661 mono_mb_emit_ldloc (mb, src_ptr);
7662 mono_mb_emit_byte (mb, CEE_LDIND_I);
7664 mono_mb_emit_icall (mb, mono_marshal_free);
7669 /* set the src_ptr */
7670 mono_mb_emit_ldloc (mb, src_ptr);
7671 mono_mb_emit_stloc (mb, 0);
7674 mono_mb_emit_ldarg (mb, argnum);
7676 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7677 mono_mb_emit_ldloc (mb, index_var);
7678 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7679 mono_mb_emit_stloc (mb, 1);
7681 /* emit valuetype conversion code */
7682 emit_struct_conv (mb, eklass, TRUE);
7686 mono_mb_emit_ldloc (mb, src_ptr);
7687 mono_mb_emit_stloc (mb, loc);
7688 mono_mb_emit_ldloc (mb, loc);
7690 emit_struct_free (mb, eklass, loc);
7694 mono_mb_emit_add_to_local (mb, index_var, 1);
7695 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7697 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7699 mono_mb_patch_branch (mb, label1);
7700 mono_mb_patch_branch (mb, label3);
7704 case MARSHAL_ACTION_PUSH:
7706 mono_mb_emit_ldloc_addr (mb, conv_arg);
7708 mono_mb_emit_ldloc (mb, conv_arg);
7711 case MARSHAL_ACTION_CONV_RESULT:
7712 /* fixme: we need conversions here */
7713 mono_mb_emit_stloc (mb, 3);
7716 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7718 guint32 label1, label2, label3;
7719 int index_var, src_ptr, loc, esize, param_num, num_elem;
7720 MonoMarshalConv conv;
7721 gboolean is_string = FALSE;
7723 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7724 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7727 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7728 mono_mb_emit_exception_marshal_directive (mb, msg);
7732 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7733 mono_mb_emit_exception_marshal_directive (mb, msg);
7736 if (spec->native != MONO_NATIVE_LPARRAY) {
7737 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7738 mono_mb_emit_exception_marshal_directive (mb, msg);
7742 /* FIXME: t is from the method which is wrapped, not the delegate type */
7743 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7745 param_num = spec->data.array_data.param_num;
7746 num_elem = spec->data.array_data.num_elem;
7747 if (spec->data.array_data.elem_mult == 0)
7748 /* param_num is not specified */
7751 if (param_num == -1) {
7752 if (num_elem <= 0) {
7753 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7754 mono_mb_emit_exception_marshal_directive (mb, msg);
7759 /* FIXME: Optimize blittable case */
7761 eklass = klass->element_class;
7762 if (eklass == mono_defaults.string_class) {
7764 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7766 else if (eklass == mono_defaults.stringbuilder_class) {
7768 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7773 mono_marshal_load_type_info (eklass);
7776 esize = sizeof (gpointer);
7778 esize = mono_class_native_size (eklass, NULL);
7779 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7780 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7782 mono_mb_emit_byte (mb, CEE_LDNULL);
7783 mono_mb_emit_stloc (mb, conv_arg);
7785 /* Check param index */
7786 if (param_num != -1) {
7787 if (param_num >= m->sig->param_count) {
7788 char *msg = g_strdup ("Array size control parameter index is out of range.");
7789 mono_mb_emit_exception_marshal_directive (mb, msg);
7792 switch (m->sig->params [param_num]->type) {
7805 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7806 mono_mb_emit_exception_marshal_directive (mb, msg);
7813 mono_mb_emit_ldarg (mb, argnum);
7814 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7816 mono_mb_emit_ldarg (mb, argnum);
7817 mono_mb_emit_stloc (mb, src_ptr);
7819 /* Create managed array */
7821 * The LPArray marshalling spec says that sometimes param_num starts
7822 * from 1, sometimes it starts from 0. But MS seems to allways start
7826 if (param_num == -1)
7827 mono_mb_emit_icon (mb, num_elem);
7829 /* FIXME: Add the two together */
7830 mono_mb_emit_ldarg (mb, param_num);
7832 mono_mb_emit_icon (mb, num_elem);
7833 mono_mb_emit_byte (mb, CEE_ADD);
7837 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7838 mono_mb_emit_stloc (mb, conv_arg);
7840 if (eklass->blittable) {
7841 mono_mb_emit_ldloc (mb, conv_arg);
7842 mono_mb_emit_byte (mb, CEE_CONV_I);
7843 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7844 mono_mb_emit_byte (mb, CEE_ADD);
7845 mono_mb_emit_ldarg (mb, argnum);
7846 mono_mb_emit_ldloc (mb, conv_arg);
7847 mono_mb_emit_byte (mb, CEE_LDLEN);
7848 mono_mb_emit_icon (mb, esize);
7849 mono_mb_emit_byte (mb, CEE_MUL);
7850 mono_mb_emit_byte (mb, CEE_PREFIX1);
7851 mono_mb_emit_byte (mb, CEE_CPBLK);
7855 /* Emit marshalling loop */
7856 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7857 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7858 mono_mb_emit_stloc (mb, index_var);
7859 label2 = mono_mb_get_label (mb);
7860 mono_mb_emit_ldloc (mb, index_var);
7861 mono_mb_emit_ldloc (mb, conv_arg);
7862 mono_mb_emit_byte (mb, CEE_LDLEN);
7863 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7865 /* Emit marshalling code */
7867 g_assert (conv != -1);
7869 mono_mb_emit_ldloc (mb, conv_arg);
7870 mono_mb_emit_ldloc (mb, index_var);
7872 mono_mb_emit_ldloc (mb, src_ptr);
7873 mono_mb_emit_byte (mb, CEE_LDIND_I);
7875 mono_mb_emit_icall (mb, conv_to_icall (conv));
7876 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7879 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7880 mono_mb_emit_exception_marshal_directive (mb, msg);
7884 mono_mb_emit_add_to_local (mb, index_var, 1);
7885 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7887 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7889 mono_mb_patch_branch (mb, label1);
7890 mono_mb_patch_branch (mb, label3);
7894 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7896 guint32 label1, label2, label3;
7897 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7898 MonoMarshalConv conv;
7899 gboolean is_string = FALSE;
7902 /* Already handled in CONV_IN */
7905 /* These are already checked in CONV_IN */
7906 g_assert (!t->byref);
7907 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7908 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7910 param_num = spec->data.array_data.param_num;
7911 num_elem = spec->data.array_data.num_elem;
7913 if (spec->data.array_data.elem_mult == 0)
7914 /* param_num is not specified */
7917 if (param_num == -1) {
7918 if (num_elem <= 0) {
7919 g_assert_not_reached ();
7923 /* FIXME: Optimize blittable case */
7925 eklass = klass->element_class;
7926 if (eklass == mono_defaults.string_class) {
7928 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7930 else if (eklass == mono_defaults.stringbuilder_class) {
7932 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7937 mono_marshal_load_type_info (eklass);
7940 esize = sizeof (gpointer);
7942 esize = mono_class_native_size (eklass, NULL);
7944 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7945 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7948 mono_mb_emit_ldloc (mb, conv_arg);
7949 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7951 mono_mb_emit_ldarg (mb, argnum);
7952 mono_mb_emit_stloc (mb, dest_ptr);
7954 if (eklass->blittable) {
7956 mono_mb_emit_ldarg (mb, argnum);
7958 mono_mb_emit_ldloc (mb, conv_arg);
7959 mono_mb_emit_byte (mb, CEE_CONV_I);
7960 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7961 mono_mb_emit_byte (mb, CEE_ADD);
7963 mono_mb_emit_ldloc (mb, conv_arg);
7964 mono_mb_emit_byte (mb, CEE_LDLEN);
7965 mono_mb_emit_icon (mb, esize);
7966 mono_mb_emit_byte (mb, CEE_MUL);
7967 mono_mb_emit_byte (mb, CEE_PREFIX1);
7968 mono_mb_emit_byte (mb, CEE_CPBLK);
7972 /* Emit marshalling loop */
7973 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7974 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7975 mono_mb_emit_stloc (mb, index_var);
7976 label2 = mono_mb_get_label (mb);
7977 mono_mb_emit_ldloc (mb, index_var);
7978 mono_mb_emit_ldloc (mb, conv_arg);
7979 mono_mb_emit_byte (mb, CEE_LDLEN);
7980 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7982 /* Emit marshalling code */
7984 g_assert (conv != -1);
7987 mono_mb_emit_ldloc (mb, dest_ptr);
7990 mono_mb_emit_ldloc (mb, conv_arg);
7991 mono_mb_emit_ldloc (mb, index_var);
7993 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7995 mono_mb_emit_icall (mb, conv_to_icall (conv));
7996 mono_mb_emit_byte (mb, CEE_STIND_I);
7999 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8000 mono_mb_emit_exception_marshal_directive (mb, msg);
8004 mono_mb_emit_add_to_local (mb, index_var, 1);
8005 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8007 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8009 mono_mb_patch_branch (mb, label1);
8010 mono_mb_patch_branch (mb, label3);
8014 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8016 guint32 label1, label2, label3;
8017 int index_var, src, dest, esize;
8018 MonoMarshalConv conv = -1;
8019 gboolean is_string = FALSE;
8021 g_assert (!t->byref);
8023 eklass = klass->element_class;
8025 mono_marshal_load_type_info (eklass);
8027 if (eklass == mono_defaults.string_class) {
8029 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8032 g_assert_not_reached ();
8036 esize = sizeof (gpointer);
8038 esize = mono_class_native_size (eklass, NULL);
8040 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8041 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8043 mono_mb_emit_stloc (mb, src);
8044 mono_mb_emit_ldloc (mb, src);
8045 mono_mb_emit_stloc (mb, 3);
8047 /* Check for null */
8048 mono_mb_emit_ldloc (mb, src);
8049 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8051 /* Allocate native array */
8052 mono_mb_emit_icon (mb, esize);
8053 mono_mb_emit_ldloc (mb, src);
8054 mono_mb_emit_byte (mb, CEE_LDLEN);
8056 if (eklass == mono_defaults.string_class) {
8057 /* Make the array bigger for the terminating null */
8058 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8059 mono_mb_emit_byte (mb, CEE_ADD);
8061 mono_mb_emit_byte (mb, CEE_MUL);
8062 mono_mb_emit_icall (mb, mono_marshal_alloc);
8063 mono_mb_emit_stloc (mb, dest);
8064 mono_mb_emit_ldloc (mb, dest);
8065 mono_mb_emit_stloc (mb, 3);
8067 /* Emit marshalling loop */
8068 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8069 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8070 mono_mb_emit_stloc (mb, index_var);
8071 label2 = mono_mb_get_label (mb);
8072 mono_mb_emit_ldloc (mb, index_var);
8073 mono_mb_emit_ldloc (mb, src);
8074 mono_mb_emit_byte (mb, CEE_LDLEN);
8075 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8077 /* Emit marshalling code */
8079 g_assert (conv != -1);
8082 mono_mb_emit_ldloc (mb, dest);
8085 mono_mb_emit_ldloc (mb, src);
8086 mono_mb_emit_ldloc (mb, index_var);
8088 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8090 mono_mb_emit_icall (mb, conv_to_icall (conv));
8091 mono_mb_emit_byte (mb, CEE_STIND_I);
8094 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8095 mono_mb_emit_exception_marshal_directive (mb, msg);
8099 mono_mb_emit_add_to_local (mb, index_var, 1);
8100 mono_mb_emit_add_to_local (mb, dest, esize);
8102 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8104 mono_mb_patch_branch (mb, label3);
8105 mono_mb_patch_branch (mb, label1);
8109 g_assert_not_reached ();
8116 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8117 MonoMarshalSpec *spec,
8118 int conv_arg, MonoType **conv_arg_type,
8119 MarshalAction action)
8121 MonoMethodBuilder *mb = m->mb;
8124 case MARSHAL_ACTION_CONV_IN: {
8125 MonoType *local_type;
8126 int variant_bool = 0;
8130 local_type = &mono_defaults.int32_class->byval_arg;
8132 switch (spec->native) {
8133 case MONO_NATIVE_I1:
8134 case MONO_NATIVE_U1:
8135 local_type = &mono_defaults.byte_class->byval_arg;
8137 case MONO_NATIVE_VARIANTBOOL:
8138 local_type = &mono_defaults.int16_class->byval_arg;
8142 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8143 local_type = &mono_defaults.int32_class->byval_arg;
8147 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8148 conv_arg = mono_mb_add_local (mb, local_type);
8149 mono_mb_emit_ldarg (mb, argnum);
8150 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8152 mono_mb_emit_byte (mb, CEE_NEG);
8153 mono_mb_emit_stloc (mb, conv_arg);
8157 case MARSHAL_ACTION_CONV_OUT:
8160 mono_mb_emit_ldarg (mb, argnum);
8161 mono_mb_emit_ldloc (mb, conv_arg);
8162 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8163 mono_mb_emit_byte (mb, CEE_NEG);
8164 mono_mb_emit_byte (mb, CEE_STIND_I1);
8167 case MARSHAL_ACTION_PUSH:
8169 mono_mb_emit_ldloc_addr (mb, conv_arg);
8171 mono_mb_emit_ldarg (mb, argnum);
8174 case MARSHAL_ACTION_CONV_RESULT:
8175 /* maybe we need to make sure that it fits within 8 bits */
8176 mono_mb_emit_stloc (mb, 3);
8180 g_assert_not_reached ();
8187 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8188 MonoMarshalSpec *spec, int conv_arg,
8189 MonoType **conv_arg_type, MarshalAction action)
8191 MonoMethodBuilder *mb = m->mb;
8194 case MARSHAL_ACTION_CONV_IN:
8195 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8196 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8197 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8201 case MARSHAL_ACTION_PUSH:
8202 mono_mb_emit_ldarg (mb, argnum);
8205 case MARSHAL_ACTION_CONV_RESULT:
8206 /* no conversions necessary */
8207 mono_mb_emit_stloc (mb, 3);
8218 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8219 MonoMarshalSpec *spec, int conv_arg,
8220 MonoType **conv_arg_type, MarshalAction action)
8222 MonoMethodBuilder *mb = m->mb;
8225 case MARSHAL_ACTION_PUSH:
8226 /* fixme: dont know how to marshal that. We cant simply
8227 * convert it to a one byte UTF8 character, because an
8228 * unicode character may need more that one byte in UTF8 */
8229 mono_mb_emit_ldarg (mb, argnum);
8232 case MARSHAL_ACTION_CONV_RESULT:
8233 /* fixme: we need conversions here */
8234 mono_mb_emit_stloc (mb, 3);
8245 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8246 MonoMarshalSpec *spec, int conv_arg,
8247 MonoType **conv_arg_type, MarshalAction action)
8249 MonoMethodBuilder *mb = m->mb;
8252 case MARSHAL_ACTION_PUSH:
8253 mono_mb_emit_ldarg (mb, argnum);
8256 case MARSHAL_ACTION_CONV_RESULT:
8257 /* no conversions necessary */
8258 mono_mb_emit_stloc (mb, 3);
8269 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8270 MonoMarshalSpec *spec, int conv_arg,
8271 MonoType **conv_arg_type, MarshalAction action)
8273 /* Ensure that we have marshalling info for this param */
8274 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8276 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8277 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8279 if (spec && spec->native == MONO_NATIVE_ASANY)
8280 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8283 case MONO_TYPE_VALUETYPE:
8284 if (t->data.klass == mono_defaults.handleref_class)
8285 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8287 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8288 case MONO_TYPE_STRING:
8289 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8290 case MONO_TYPE_CLASS:
8291 case MONO_TYPE_OBJECT:
8292 if (spec && spec->native == MONO_NATIVE_STRUCT)
8293 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8295 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8296 spec->native == MONO_NATIVE_IDISPATCH ||
8297 spec->native == MONO_NATIVE_INTERFACE))
8298 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8300 if (mono_defaults.safehandle_class != NULL &&
8301 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8302 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8304 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8305 case MONO_TYPE_ARRAY:
8306 case MONO_TYPE_SZARRAY:
8307 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8308 case MONO_TYPE_BOOLEAN:
8309 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8311 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8312 case MONO_TYPE_CHAR:
8313 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8326 case MONO_TYPE_FNPTR:
8327 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8334 * mono_marshal_emit_native_wrapper:
8335 * @image: the image to use for looking up custom marshallers
8336 * @sig: The signature of the native function
8337 * @piinfo: Marshalling information
8338 * @mspecs: Marshalling information
8339 * @func: the native function to call
8340 * @check_exceptions: Whenever to check for pending exceptions after the native call
8342 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8345 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions)
8347 EmitMarshalContext m;
8348 MonoMethodSignature *csig;
8350 int i, argnum, *tmp_locals;
8352 static MonoMethodSignature *get_last_error_sig = NULL;
8357 /* we copy the signature, so that we can set pinvoke to 0 */
8358 csig = signature_dup (mb->method->klass->image, sig);
8363 /* we allocate local for use with emit_struct_conv() */
8364 /* allocate local 0 (pointer) src_ptr */
8365 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8366 /* allocate local 1 (pointer) dst_ptr */
8367 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8368 /* allocate local 2 (boolean) delete_old */
8369 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8371 /* delete_old = FALSE */
8372 mono_mb_emit_icon (mb, 0);
8373 mono_mb_emit_stloc (mb, 2);
8375 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8376 /* allocate local 3 to store the return value */
8377 mono_mb_add_local (mb, sig->ret);
8380 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8381 /* Return type custom marshaling */
8383 * Since we can't determine the return type of the unmanaged function,
8384 * we assume it returns a pointer, and pass that pointer to
8385 * MarshalNativeToManaged.
8387 csig->ret = &mono_defaults.int_class->byval_arg;
8390 /* we first do all conversions */
8391 tmp_locals = alloca (sizeof (int) * sig->param_count);
8392 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8394 for (i = 0; i < sig->param_count; i ++) {
8395 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8398 /* push all arguments */
8401 mono_mb_emit_byte (mb, CEE_LDARG_0);
8404 for (i = 0; i < sig->param_count; i++) {
8405 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8408 /* call the native method */
8409 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8410 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8413 mono_mb_emit_native_call (mb, csig, func);
8416 /* Set LastError if needed */
8417 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8418 if (!get_last_error_sig) {
8419 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8420 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8421 get_last_error_sig->pinvoke = 1;
8424 #ifdef PLATFORM_WIN32
8426 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8427 * clobber its value.
8429 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8430 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8432 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8436 /* convert the result */
8437 if (!sig->ret->byref) {
8438 MonoMarshalSpec *spec = mspecs [0];
8439 type = sig->ret->type;
8441 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8442 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8447 case MONO_TYPE_VOID:
8449 case MONO_TYPE_VALUETYPE:
8450 klass = sig->ret->data.klass;
8451 if (klass->enumtype) {
8452 type = sig->ret->data.klass->enum_basetype->type;
8455 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8469 case MONO_TYPE_FNPTR:
8470 case MONO_TYPE_STRING:
8471 case MONO_TYPE_CLASS:
8472 case MONO_TYPE_OBJECT:
8473 case MONO_TYPE_BOOLEAN:
8474 case MONO_TYPE_ARRAY:
8475 case MONO_TYPE_SZARRAY:
8476 case MONO_TYPE_CHAR:
8478 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8480 case MONO_TYPE_TYPEDBYREF:
8482 g_warning ("return type 0x%02x unknown", sig->ret->type);
8483 g_assert_not_reached ();
8487 mono_mb_emit_stloc (mb, 3);
8491 * Need to call this after converting the result since MONO_VTADDR needs
8492 * to be adjacent to the call instruction.
8494 if (check_exceptions)
8495 emit_thread_interrupt_checkpoint (mb);
8497 /* we need to convert byref arguments back and free string arrays */
8498 for (i = 0; i < sig->param_count; i++) {
8499 MonoType *t = sig->params [i];
8500 MonoMarshalSpec *spec = mspecs [i + 1];
8502 argnum = i + sig->hasthis;
8504 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8505 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8510 case MONO_TYPE_STRING:
8511 case MONO_TYPE_VALUETYPE:
8512 case MONO_TYPE_CLASS:
8513 case MONO_TYPE_OBJECT:
8514 case MONO_TYPE_SZARRAY:
8515 case MONO_TYPE_BOOLEAN:
8516 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8521 if (!MONO_TYPE_IS_VOID(sig->ret))
8522 mono_mb_emit_ldloc (mb, 3);
8524 mono_mb_emit_byte (mb, CEE_RET);
8528 * mono_marshal_get_native_wrapper:
8529 * @method: The MonoMethod to wrap.
8530 * @check_exceptions: Whenever to check for pending exceptions
8532 * generates IL code for the pinvoke wrapper (the generated method
8533 * calls the unmanaged code in piinfo->addr)
8536 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8538 MonoMethodSignature *sig, *csig;
8539 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8540 MonoMethodBuilder *mb;
8541 MonoMarshalSpec **mspecs;
8544 gboolean pinvoke = FALSE;
8547 const char *exc_class = "MissingMethodException";
8548 const char *exc_arg = NULL;
8550 g_assert (method != NULL);
8551 g_assert (mono_method_signature (method)->pinvoke);
8553 cache = method->klass->image->native_wrapper_cache;
8554 if ((res = mono_marshal_find_in_cache (cache, method)))
8557 if (MONO_CLASS_IS_IMPORT (method->klass))
8558 return cominterop_get_native_wrapper (method);
8560 sig = mono_method_signature (method);
8562 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8563 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8566 if (!piinfo->addr) {
8568 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8569 exc_arg = "Method contains unsupported native code";
8571 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8573 piinfo->addr = mono_lookup_internal_call (method);
8576 /* hack - redirect certain string constructors to CreateString */
8577 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8578 g_assert (!pinvoke);
8579 g_assert (method->string_ctor);
8580 g_assert (sig->hasthis);
8582 /* CreateString returns a value */
8583 csig = signature_dup (method->klass->image, sig);
8584 csig->ret = &mono_defaults.string_class->byval_arg;
8588 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8589 if (!strcmp ("CreateString", res->name) &&
8590 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8592 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8593 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8595 /* create a wrapper to preserve .ctor in stack trace */
8596 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8598 mono_mb_emit_byte (mb, CEE_LDARG_0);
8599 for (i = 1; i <= csig->param_count; i++)
8600 mono_mb_emit_ldarg (mb, i);
8601 mono_mb_emit_managed_call (mb, res, NULL);
8602 mono_mb_emit_byte (mb, CEE_RET);
8604 /* use native_wrapper_cache because internal calls are looked up there */
8605 res = mono_mb_create_and_cache (cache, method,
8606 mb, csig, csig->param_count + 1);
8614 /* exception will be thrown */
8615 piinfo->addr = NULL;
8616 g_warning ("cannot find CreateString for .ctor");
8619 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8621 mb->method->save_lmf = 1;
8624 * In AOT mode and embedding scenarios, it is possible that the icall is not
8625 * registered in the runtime doing the AOT compilation.
8627 if (!piinfo->addr && !aot) {
8628 mono_mb_emit_exception (mb, exc_class, exc_arg);
8629 csig = signature_dup (method->klass->image, sig);
8631 res = mono_mb_create_and_cache (cache, method,
8632 mb, csig, csig->param_count + 16);
8637 /* internal calls: we simply push all arguments and call the method (no conversions) */
8638 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8640 /* hack - string constructors returns a value */
8641 if (method->string_ctor) {
8642 csig = signature_dup (method->klass->image, sig);
8643 csig->ret = &mono_defaults.string_class->byval_arg;
8648 mono_mb_emit_byte (mb, CEE_LDARG_0);
8650 for (i = 0; i < sig->param_count; i++)
8651 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8654 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8655 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8656 mono_mb_emit_calli (mb, csig);
8658 g_assert (piinfo->addr);
8659 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8661 if (check_exceptions)
8662 emit_thread_interrupt_checkpoint (mb);
8663 mono_mb_emit_byte (mb, CEE_RET);
8665 csig = signature_dup (method->klass->image, csig);
8667 res = mono_mb_create_and_cache (cache, method,
8668 mb, csig, csig->param_count + 16);
8674 g_assert (piinfo->addr);
8676 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8677 mono_method_get_marshal_info (method, mspecs);
8679 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, check_exceptions);
8681 csig = signature_dup (method->klass->image, sig);
8683 res = mono_mb_create_and_cache (cache, method,
8684 mb, csig, csig->param_count + 16);
8687 for (i = sig->param_count; i >= 0; i--)
8689 mono_metadata_free_marshal_spec (mspecs [i]);
8692 /* 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)); */
8698 * mono_marshal_get_native_func_wrapper:
8699 * @image: The image to use for memory allocation and for looking up custom marshallers.
8700 * @sig: The signature of the function
8701 * @func: The native function to wrap
8703 * Returns a wrapper method around native functions, similar to the pinvoke
8707 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8708 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8710 MonoMethodSignature *csig;
8712 MonoMethodBuilder *mb;
8717 cache = image->native_wrapper_cache;
8718 if ((res = mono_marshal_find_in_cache (cache, func)))
8721 name = g_strdup_printf ("wrapper_native_%p", func);
8722 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8723 mb->method->save_lmf = 1;
8725 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, TRUE);
8727 csig = signature_dup (image, sig);
8729 res = mono_mb_create_and_cache (cache, func,
8730 mb, csig, csig->param_count + 16);
8733 /* 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)); */
8738 /* FIXME: moving GC */
8740 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8742 MonoMethodSignature *sig, *csig;
8748 /* allocate local 0 (pointer) src_ptr */
8749 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8750 /* allocate local 1 (pointer) dst_ptr */
8751 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8752 /* allocate local 2 (boolean) delete_old */
8753 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8755 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8756 /* allocate local 3 to store the return value */
8757 mono_mb_add_local (mb, sig->ret);
8760 mono_mb_emit_icon (mb, 0);
8761 mono_mb_emit_stloc (mb, 2);
8763 /* we first do all conversions */
8764 tmp_locals = alloca (sizeof (int) * sig->param_count);
8765 for (i = 0; i < sig->param_count; i ++) {
8766 MonoType *t = sig->params [i];
8769 case MONO_TYPE_OBJECT:
8770 case MONO_TYPE_CLASS:
8771 case MONO_TYPE_VALUETYPE:
8772 case MONO_TYPE_ARRAY:
8773 case MONO_TYPE_SZARRAY:
8774 case MONO_TYPE_STRING:
8775 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8784 emit_thread_interrupt_checkpoint (mb);
8786 /* fixme: howto handle this ? */
8789 /* FIXME: need a solution for the moving GC here */
8790 mono_mb_emit_ptr (mb, this);
8793 g_assert_not_reached ();
8797 for (i = 0; i < sig->param_count; i++) {
8798 MonoType *t = sig->params [i];
8800 if (tmp_locals [i]) {
8802 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8804 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8807 mono_mb_emit_ldarg (mb, i);
8810 mono_mb_emit_managed_call (mb, method, NULL);
8812 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8813 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8816 if (!sig->ret->byref) {
8817 switch (sig->ret->type) {
8818 case MONO_TYPE_VOID:
8820 case MONO_TYPE_BOOLEAN:
8834 case MONO_TYPE_OBJECT:
8835 mono_mb_emit_stloc (mb, 3);
8837 case MONO_TYPE_STRING:
8838 csig->ret = &mono_defaults.int_class->byval_arg;
8839 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8841 case MONO_TYPE_VALUETYPE:
8842 case MONO_TYPE_CLASS:
8843 case MONO_TYPE_SZARRAY:
8844 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8847 g_warning ("return type 0x%02x unknown", sig->ret->type);
8848 g_assert_not_reached ();
8851 mono_mb_emit_stloc (mb, 3);
8854 /* Convert byref arguments back */
8855 for (i = 0; i < sig->param_count; i ++) {
8856 MonoType *t = sig->params [i];
8857 MonoMarshalSpec *spec = mspecs [i + 1];
8859 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8860 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8862 else if (t->byref) {
8864 case MONO_TYPE_CLASS:
8865 case MONO_TYPE_VALUETYPE:
8866 case MONO_TYPE_OBJECT:
8867 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8871 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8872 /* The [Out] information is encoded in the delegate signature */
8874 case MONO_TYPE_SZARRAY:
8875 case MONO_TYPE_CLASS:
8876 case MONO_TYPE_VALUETYPE:
8877 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8880 g_assert_not_reached ();
8885 if (m->retobj_var) {
8886 mono_mb_emit_ldloc (mb, m->retobj_var);
8887 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8888 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8891 if (!MONO_TYPE_IS_VOID(sig->ret))
8892 mono_mb_emit_ldloc (mb, 3);
8893 mono_mb_emit_byte (mb, CEE_RET);
8899 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8901 MonoMethodSignature *sig;
8904 #ifdef PLATFORM_WIN32
8906 * Under windows, delegates passed to native code must use the STDCALL
8907 * calling convention.
8909 csig->call_convention = MONO_CALL_STDCALL;
8912 sig = mono_method_signature (method);
8914 /* Change default calling convention if needed */
8915 /* Why is this a modopt ? */
8916 if (sig->ret && sig->ret->num_mods) {
8917 for (i = 0; i < sig->ret->num_mods; ++i) {
8918 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8919 g_assert (cmod_class);
8920 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8921 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8922 csig->call_convention = MONO_CALL_C;
8923 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8924 csig->call_convention = MONO_CALL_STDCALL;
8925 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8926 csig->call_convention = MONO_CALL_FASTCALL;
8927 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8928 csig->call_convention = MONO_CALL_THISCALL;
8935 * generates IL code to call managed methods from unmanaged code
8938 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8940 static MonoClass *UnmanagedFunctionPointerAttribute;
8941 MonoMethodSignature *sig, *csig, *invoke_sig;
8942 MonoMethodBuilder *mb;
8943 MonoMethod *res, *invoke;
8944 MonoMarshalSpec **mspecs;
8945 MonoMethodPInvoke piinfo;
8948 EmitMarshalContext m;
8950 g_assert (method != NULL);
8951 g_assert (!mono_method_signature (method)->pinvoke);
8954 * FIXME: Should cache the method+delegate type pair, since the same method
8955 * could be called with different delegates, thus different marshalling
8958 cache = method->klass->image->managed_wrapper_cache;
8959 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
8962 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
8963 invoke_sig = mono_method_signature (invoke);
8965 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8966 mono_method_get_marshal_info (invoke, mspecs);
8968 sig = mono_method_signature (method);
8970 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8973 /* we copy the signature, so that we can modify it */
8975 /* Need to free this later */
8976 csig = mono_metadata_signature_dup (sig);
8978 csig = signature_dup (method->klass->image, sig);
8987 m.image = method->klass->image;
8989 mono_marshal_set_callconv_from_modopt (invoke, csig);
8991 /* Handle the UnmanagedFunctionPointerAttribute */
8992 if (!UnmanagedFunctionPointerAttribute)
8993 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8995 /* The attribute is only available in Net 2.0 */
8996 if (UnmanagedFunctionPointerAttribute) {
8997 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8998 MonoCustomAttrInfo *cinfo;
9001 * The pinvoke attributes are stored in a real custom attribute so we have to
9004 cinfo = mono_custom_attrs_from_class (delegate_klass);
9006 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9008 memset (&piinfo, 0, sizeof (piinfo));
9010 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9012 csig->call_convention = attr->call_conv - 1;
9015 mono_custom_attrs_free (cinfo);
9019 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9022 res = mono_mb_create_and_cache (cache, method,
9023 mb, csig, sig->param_count + 16);
9026 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9030 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9032 mono_metadata_free_marshal_spec (mspecs [i]);
9035 /* 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)); */
9041 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9044 MonoMethodSignature *sig;
9045 MonoMethodBuilder *mb;
9050 method = mono_get_method (image, token, NULL);
9053 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9054 MonoMethodSignature *csig;
9055 MonoMarshalSpec **mspecs;
9056 EmitMarshalContext m;
9058 sig = mono_method_signature (method);
9059 g_assert (!sig->hasthis);
9061 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9062 mono_method_get_marshal_info (method, mspecs);
9064 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9065 csig = signature_dup (image, sig);
9076 mono_marshal_set_callconv_from_modopt (method, csig);
9078 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9080 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
9083 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9086 for (i = sig->param_count; i >= 0; i--)
9088 mono_metadata_free_marshal_spec (mspecs [i]);
9091 return mono_compile_method (method);
9094 sig = mono_method_signature (method);
9095 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9097 param_count = sig->param_count + sig->hasthis;
9098 for (i = 0; i < param_count; i++)
9099 mono_mb_emit_ldarg (mb, i);
9101 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9102 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9104 mono_mb_emit_op (mb, CEE_CALL, method);
9105 mono_mb_emit_byte (mb, CEE_RET);
9108 method = mono_mb_create_method (mb, sig, param_count);
9111 return mono_compile_method (method);
9114 static MonoReflectionType *
9115 type_from_handle (MonoType *handle)
9117 MonoDomain *domain = mono_domain_get ();
9118 MonoClass *klass = mono_class_from_mono_type (handle);
9120 MONO_ARCH_SAVE_REGS;
9122 mono_class_init (klass);
9123 return mono_type_get_object (domain, handle);
9127 * mono_marshal_get_isinst:
9128 * @klass: the type of the field
9130 * This method generates a function which can be used to check if an object is
9131 * an instance of the given type, icluding the case where the object is a proxy.
9132 * The generated function has the following signature:
9133 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9136 mono_marshal_get_isinst (MonoClass *klass)
9138 static MonoMethodSignature *isint_sig = NULL;
9141 int pos_was_ok, pos_failed, pos_end, pos_end2;
9143 MonoMethodBuilder *mb;
9145 cache = klass->image->isinst_cache;
9146 if ((res = mono_marshal_find_in_cache (cache, klass)))
9150 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9151 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9152 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9153 isint_sig->pinvoke = 0;
9156 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9157 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9160 mb->method->save_lmf = 1;
9162 /* check if the object is a proxy that needs special cast */
9163 mono_mb_emit_ldarg (mb, 0);
9164 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9165 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9167 /* The result of MONO_ISINST can be:
9168 0) the type check succeeded
9169 1) the type check did not succeed
9170 2) a CanCastTo call is needed */
9172 mono_mb_emit_byte (mb, CEE_DUP);
9173 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9175 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9176 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9178 /* get the real proxy from the transparent proxy*/
9180 mono_mb_emit_ldarg (mb, 0);
9181 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9182 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9186 mono_mb_patch_branch (mb, pos_failed);
9187 mono_mb_emit_byte (mb, CEE_LDNULL);
9188 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9192 mono_mb_patch_branch (mb, pos_was_ok);
9193 mono_mb_emit_byte (mb, CEE_POP);
9194 mono_mb_emit_ldarg (mb, 0);
9198 mono_mb_patch_branch (mb, pos_end);
9199 mono_mb_patch_branch (mb, pos_end2);
9200 mono_mb_emit_byte (mb, CEE_RET);
9202 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9209 * mono_marshal_get_castclass:
9210 * @klass: the type of the field
9212 * This method generates a function which can be used to cast an object to
9213 * an instance of the given type, icluding the case where the object is a proxy.
9214 * The generated function has the following signature:
9215 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9218 mono_marshal_get_castclass (MonoClass *klass)
9220 static MonoMethodSignature *castclass_sig = NULL;
9223 int pos_was_ok, pos_was_ok2;
9225 MonoMethodBuilder *mb;
9227 cache = klass->image->castclass_cache;
9228 if ((res = mono_marshal_find_in_cache (cache, klass)))
9231 if (!castclass_sig) {
9232 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9233 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9234 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9235 castclass_sig->pinvoke = 0;
9238 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9239 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9242 mb->method->save_lmf = 1;
9244 /* check if the object is a proxy that needs special cast */
9245 mono_mb_emit_ldarg (mb, 0);
9246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9247 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9249 /* The result of MONO_ISINST can be:
9250 0) the cast is valid
9251 1) cast of unknown proxy type
9252 or an exception if the cast is is invalid
9255 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9257 /* get the real proxy from the transparent proxy*/
9259 mono_mb_emit_ldarg (mb, 0);
9260 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9261 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9264 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9267 mono_mb_patch_branch (mb, pos_was_ok);
9268 mono_mb_patch_branch (mb, pos_was_ok2);
9269 mono_mb_emit_ldarg (mb, 0);
9272 mono_mb_emit_byte (mb, CEE_RET);
9274 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9281 mono_marshal_get_proxy_cancast (MonoClass *klass)
9283 static MonoMethodSignature *isint_sig = NULL;
9286 int pos_failed, pos_end;
9288 MonoMethod *can_cast_to;
9289 MonoMethodDesc *desc;
9290 MonoMethodBuilder *mb;
9292 cache = klass->image->proxy_isinst_cache;
9293 if ((res = mono_marshal_find_in_cache (cache, klass)))
9297 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9298 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9299 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9300 isint_sig->pinvoke = 0;
9303 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9304 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9307 mb->method->save_lmf = 1;
9309 /* get the real proxy from the transparent proxy*/
9310 mono_mb_emit_ldarg (mb, 0);
9311 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9314 /* get the reflection type from the type handle */
9315 mono_mb_emit_ptr (mb, &klass->byval_arg);
9316 mono_mb_emit_icall (mb, type_from_handle);
9318 mono_mb_emit_ldarg (mb, 0);
9320 /* make the call to CanCastTo (type, ob) */
9321 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9322 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9323 g_assert (can_cast_to);
9324 mono_method_desc_free (desc);
9325 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9327 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9329 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9330 mono_mb_emit_ptr (mb, &klass->byval_arg);
9331 mono_mb_emit_icall (mb, type_from_handle);
9332 mono_mb_emit_ldarg (mb, 0);
9334 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9335 emit_thread_interrupt_checkpoint (mb);
9337 mono_mb_emit_ldarg (mb, 0);
9338 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9342 mono_mb_patch_branch (mb, pos_failed);
9343 mono_mb_emit_byte (mb, CEE_LDNULL);
9347 mono_mb_patch_branch (mb, pos_end);
9348 mono_mb_emit_byte (mb, CEE_RET);
9350 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9357 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9360 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9361 klass = mono_class_from_mono_type (rtype->type);
9362 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9366 * mono_marshal_get_struct_to_ptr:
9369 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9372 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9374 MonoMethodBuilder *mb;
9375 static MonoMethod *stoptr = NULL;
9378 g_assert (klass != NULL);
9380 mono_marshal_load_type_info (klass);
9382 if (klass->marshal_info->str_to_ptr)
9383 return klass->marshal_info->str_to_ptr;
9386 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9389 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9391 if (klass->blittable) {
9392 mono_mb_emit_byte (mb, CEE_LDARG_1);
9393 mono_mb_emit_byte (mb, CEE_LDARG_0);
9394 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9395 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9396 mono_mb_emit_byte (mb, CEE_PREFIX1);
9397 mono_mb_emit_byte (mb, CEE_CPBLK);
9400 /* allocate local 0 (pointer) src_ptr */
9401 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9402 /* allocate local 1 (pointer) dst_ptr */
9403 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9404 /* allocate local 2 (boolean) delete_old */
9405 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9406 mono_mb_emit_byte (mb, CEE_LDARG_2);
9407 mono_mb_emit_stloc (mb, 2);
9409 /* initialize src_ptr to point to the start of object data */
9410 mono_mb_emit_byte (mb, CEE_LDARG_0);
9411 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9412 mono_mb_emit_stloc (mb, 0);
9414 /* initialize dst_ptr */
9415 mono_mb_emit_byte (mb, CEE_LDARG_1);
9416 mono_mb_emit_stloc (mb, 1);
9418 emit_struct_conv (mb, klass, FALSE);
9421 mono_mb_emit_byte (mb, CEE_RET);
9423 res = mono_mb_create_method (mb, signature_no_pinvoke (stoptr), 0);
9426 klass->marshal_info->str_to_ptr = res;
9431 * mono_marshal_get_ptr_to_struct:
9434 * generates IL code for PtrToStructure (IntPtr src, object structure)
9437 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9439 MonoMethodBuilder *mb;
9440 static MonoMethodSignature *ptostr = NULL;
9443 g_assert (klass != NULL);
9445 mono_marshal_load_type_info (klass);
9447 if (klass->marshal_info->ptr_to_str)
9448 return klass->marshal_info->ptr_to_str;
9451 MonoMethodSignature *sig;
9453 /* Create the signature corresponding to
9454 static void PtrToStructure (IntPtr ptr, object structure);
9455 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9456 sig = mono_create_icall_signature ("void ptr object");
9457 sig = signature_dup (mono_defaults.corlib, sig);
9459 mono_memory_barrier ();
9463 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9465 if (klass->blittable) {
9466 mono_mb_emit_byte (mb, CEE_LDARG_1);
9467 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9468 mono_mb_emit_byte (mb, CEE_LDARG_0);
9469 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9470 mono_mb_emit_byte (mb, CEE_PREFIX1);
9471 mono_mb_emit_byte (mb, CEE_CPBLK);
9474 /* allocate local 0 (pointer) src_ptr */
9475 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9476 /* allocate local 1 (pointer) dst_ptr */
9477 mono_mb_add_local (mb, &klass->this_arg);
9479 /* initialize src_ptr to point to the start of object data */
9480 mono_mb_emit_byte (mb, CEE_LDARG_0);
9481 mono_mb_emit_stloc (mb, 0);
9483 /* initialize dst_ptr */
9484 mono_mb_emit_byte (mb, CEE_LDARG_1);
9485 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9486 mono_mb_emit_stloc (mb, 1);
9488 emit_struct_conv (mb, klass, TRUE);
9491 mono_mb_emit_byte (mb, CEE_RET);
9493 res = mono_mb_create_method (mb, ptostr, 0);
9496 klass->marshal_info->ptr_to_str = res;
9501 * generates IL code for the synchronized wrapper: the generated method
9502 * calls METHOD while locking 'this' or the parent type.
9505 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9507 static MonoMethod *enter_method, *exit_method;
9508 MonoMethodSignature *sig;
9509 MonoExceptionClause *clause;
9510 MonoMethodHeader *header;
9511 MonoMethodBuilder *mb;
9514 int i, pos, this_local, ret_local = 0;
9518 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9521 cache = method->klass->image->synchronized_cache;
9522 if ((res = mono_marshal_find_in_cache (cache, method)))
9525 sig = signature_dup (method->klass->image, mono_method_signature (method));
9528 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9531 if (!MONO_TYPE_IS_VOID (sig->ret))
9532 ret_local = mono_mb_add_local (mb, sig->ret);
9534 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9535 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9536 /* This will throw the type load exception when the wrapper is compiled */
9537 mono_mb_emit_byte (mb, CEE_LDNULL);
9538 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9539 mono_mb_emit_byte (mb, CEE_POP);
9541 if (!MONO_TYPE_IS_VOID (sig->ret))
9542 mono_mb_emit_ldloc (mb, ret_local);
9543 mono_mb_emit_byte (mb, CEE_RET);
9545 res = mono_mb_create_and_cache (cache, method,
9546 mb, sig, sig->param_count + 16);
9553 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9555 mono_loader_lock ();
9556 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
9557 mono_loader_unlock ();
9558 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9560 if (!enter_method) {
9561 MonoMethodDesc *desc;
9563 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9564 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9565 g_assert (enter_method);
9566 mono_method_desc_free (desc);
9567 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9568 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9569 g_assert (exit_method);
9570 mono_method_desc_free (desc);
9573 /* Push this or the type object */
9574 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9576 * GetTypeFromHandle isn't called as a managed method because it has
9577 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9578 * transformed into something else by the JIT.
9580 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9581 mono_mb_emit_icall (mb, type_from_handle);
9584 mono_mb_emit_ldarg (mb, 0);
9585 mono_mb_emit_stloc (mb, this_local);
9587 /* Call Monitor::Enter() */
9588 mono_mb_emit_ldloc (mb, this_local);
9589 mono_mb_emit_managed_call (mb, enter_method, NULL);
9591 clause->try_offset = mono_mb_get_label (mb);
9593 /* Call the method */
9595 mono_mb_emit_ldarg (mb, 0);
9596 for (i = 0; i < sig->param_count; i++)
9597 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9599 mono_mb_emit_managed_call (mb, method, NULL);
9601 if (!MONO_TYPE_IS_VOID (sig->ret))
9602 mono_mb_emit_stloc (mb, ret_local);
9604 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9606 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9607 clause->handler_offset = mono_mb_get_label (mb);
9609 /* Call Monitor::Exit() */
9610 mono_mb_emit_ldloc (mb, this_local);
9611 mono_mb_emit_managed_call (mb, exit_method, NULL);
9612 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9614 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9616 mono_mb_patch_branch (mb, pos);
9617 if (!MONO_TYPE_IS_VOID (sig->ret))
9618 mono_mb_emit_ldloc (mb, ret_local);
9619 mono_mb_emit_byte (mb, CEE_RET);
9621 res = mono_mb_create_and_cache (cache, method,
9622 mb, sig, sig->param_count + 16);
9625 header = ((MonoMethodNormal *)res)->header;
9626 header->num_clauses = 1;
9627 header->clauses = clause;
9634 * the returned method calls 'method' unboxing the this argument
9637 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9639 MonoMethodSignature *sig = mono_method_signature (method);
9641 MonoMethodBuilder *mb;
9645 cache = method->klass->image->unbox_wrapper_cache;
9646 if ((res = mono_marshal_find_in_cache (cache, method)))
9649 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9651 g_assert (sig->hasthis);
9653 mono_mb_emit_ldarg (mb, 0);
9654 mono_mb_emit_icon (mb, sizeof (MonoObject));
9655 mono_mb_emit_byte (mb, CEE_ADD);
9656 for (i = 0; i < sig->param_count; ++i)
9657 mono_mb_emit_ldarg (mb, i + 1);
9658 mono_mb_emit_managed_call (mb, method, NULL);
9659 mono_mb_emit_byte (mb, CEE_RET);
9661 res = mono_mb_create_and_cache (cache, method,
9662 mb, sig, sig->param_count + 16);
9665 /* 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)); */
9671 mono_marshal_get_stelemref ()
9673 static MonoMethod* ret = NULL;
9674 MonoMethodSignature *sig;
9675 MonoMethodBuilder *mb;
9677 guint32 b1, b2, b3, b4;
9680 int array_slot_addr;
9685 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9688 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9690 /* void stelemref (void* array, int idx, void* value) */
9691 sig->ret = &mono_defaults.void_class->byval_arg;
9692 sig->params [0] = &mono_defaults.object_class->byval_arg;
9693 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9694 sig->params [2] = &mono_defaults.object_class->byval_arg;
9696 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9697 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9698 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9702 <ldelema (bound check)>
9706 aklass = array->vtable->klass->element_class;
9707 vklass = value->vtable->klass;
9709 if (vklass->idepth < aklass->idepth)
9712 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9716 *array_slot_addr = value;
9720 if (mono_object_isinst (value, aklass))
9723 throw new ArrayTypeMismatchException ();
9726 /* ldelema (implicit bound check) */
9727 mono_mb_emit_ldarg (mb, 0);
9728 mono_mb_emit_ldarg (mb, 1);
9729 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9730 mono_mb_emit_stloc (mb, array_slot_addr);
9732 /* if (!value) goto do_store */
9733 mono_mb_emit_ldarg (mb, 2);
9734 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9736 /* aklass = array->vtable->klass->element_class */
9737 mono_mb_emit_ldarg (mb, 0);
9738 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9739 mono_mb_emit_byte (mb, CEE_LDIND_I);
9740 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9741 mono_mb_emit_byte (mb, CEE_LDIND_I);
9742 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9743 mono_mb_emit_byte (mb, CEE_LDIND_I);
9744 mono_mb_emit_stloc (mb, aklass);
9746 /* vklass = value->vtable->klass */
9747 mono_mb_emit_ldarg (mb, 2);
9748 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9749 mono_mb_emit_byte (mb, CEE_LDIND_I);
9750 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9751 mono_mb_emit_byte (mb, CEE_LDIND_I);
9752 mono_mb_emit_stloc (mb, vklass);
9754 /* if (vklass->idepth < aklass->idepth) goto failue */
9755 mono_mb_emit_ldloc (mb, vklass);
9756 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9757 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9759 mono_mb_emit_ldloc (mb, aklass);
9760 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9761 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9763 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9765 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9766 mono_mb_emit_ldloc (mb, vklass);
9767 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9768 mono_mb_emit_byte (mb, CEE_LDIND_I);
9770 mono_mb_emit_ldloc (mb, aklass);
9771 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9772 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9773 mono_mb_emit_icon (mb, 1);
9774 mono_mb_emit_byte (mb, CEE_SUB);
9775 mono_mb_emit_icon (mb, sizeof (void*));
9776 mono_mb_emit_byte (mb, CEE_MUL);
9777 mono_mb_emit_byte (mb, CEE_ADD);
9778 mono_mb_emit_byte (mb, CEE_LDIND_I);
9780 mono_mb_emit_ldloc (mb, aklass);
9782 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9784 copy_pos = mono_mb_get_label (mb);
9786 mono_mb_patch_branch (mb, b1);
9787 mono_mb_emit_ldloc (mb, array_slot_addr);
9788 mono_mb_emit_ldarg (mb, 2);
9789 mono_mb_emit_byte (mb, CEE_STIND_REF);
9791 mono_mb_emit_byte (mb, CEE_RET);
9794 mono_mb_patch_branch (mb, b2);
9795 mono_mb_patch_branch (mb, b3);
9797 mono_mb_emit_ldarg (mb, 2);
9798 mono_mb_emit_ldloc (mb, aklass);
9799 mono_mb_emit_icall (mb, mono_object_isinst);
9801 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9802 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9803 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9805 mono_mb_emit_byte (mb, CEE_RET);
9806 ret = mono_mb_create_method (mb, sig, 4);
9817 /* LOCKING: vars accessed under the marshal lock */
9818 static ArrayElemAddr *elem_addr_cache = NULL;
9819 static int elem_addr_cache_size = 0;
9820 static int elem_addr_cache_next = 0;
9823 * mono_marshal_get_array_address:
9824 * @rank: rank of the array type
9825 * @elem_size: size in bytes of an element of an array.
9827 * Returns a MonoMethd that implements the code to get the address
9828 * of an element in a multi-dimenasional array of @rank dimensions.
9829 * The returned method takes an array as the first argument and then
9830 * @rank indexes for the @rank dimensions.
9833 mono_marshal_get_array_address (int rank, int elem_size)
9836 MonoMethodBuilder *mb;
9837 MonoMethodSignature *sig;
9838 int i, bounds, ind, realidx;
9839 int branch_pos, *branch_positions;
9843 mono_marshal_lock ();
9844 for (i = 0; i < elem_addr_cache_next; ++i) {
9845 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9846 ret = elem_addr_cache [i].method;
9850 mono_marshal_unlock ();
9854 branch_positions = g_new0 (int, rank);
9856 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9858 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9859 sig->ret = &mono_defaults.int_class->byval_arg;
9860 sig->params [0] = &mono_defaults.object_class->byval_arg;
9861 for (i = 0; i < rank; ++i) {
9862 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9865 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9867 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9868 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9869 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9871 /* bounds = array->bounds; */
9872 mono_mb_emit_ldarg (mb, 0);
9873 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9874 mono_mb_emit_byte (mb, CEE_LDIND_I);
9875 mono_mb_emit_stloc (mb, bounds);
9877 /* ind is the overall element index, realidx is the partial index in a single dimension */
9878 /* ind = idx0 - bounds [0].lower_bound */
9879 mono_mb_emit_ldarg (mb, 1);
9880 mono_mb_emit_ldloc (mb, bounds);
9881 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9882 mono_mb_emit_byte (mb, CEE_ADD);
9883 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9884 mono_mb_emit_byte (mb, CEE_SUB);
9885 mono_mb_emit_stloc (mb, ind);
9886 /* if (ind >= bounds [0].length) goto exeception; */
9887 mono_mb_emit_ldloc (mb, ind);
9888 mono_mb_emit_ldloc (mb, bounds);
9889 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9890 mono_mb_emit_byte (mb, CEE_ADD);
9891 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9892 /* note that we use unsigned comparison */
9893 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9895 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9896 * We could also decide to ignore the passed elem_size and get it
9897 * from the array object, to reduce the number of methods we generate:
9898 * the additional cost is 3 memory loads and a non-immediate mul.
9900 for (i = 1; i < rank; ++i) {
9901 /* realidx = idxi - bounds [i].lower_bound */
9902 mono_mb_emit_ldarg (mb, 1 + i);
9903 mono_mb_emit_ldloc (mb, bounds);
9904 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9905 mono_mb_emit_byte (mb, CEE_ADD);
9906 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9907 mono_mb_emit_byte (mb, CEE_SUB);
9908 mono_mb_emit_stloc (mb, realidx);
9909 /* if (realidx >= bounds [i].length) goto exeception; */
9910 mono_mb_emit_ldloc (mb, realidx);
9911 mono_mb_emit_ldloc (mb, bounds);
9912 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9913 mono_mb_emit_byte (mb, CEE_ADD);
9914 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9915 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9916 /* ind = ind * bounds [i].length + realidx */
9917 mono_mb_emit_ldloc (mb, ind);
9918 mono_mb_emit_ldloc (mb, bounds);
9919 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9920 mono_mb_emit_byte (mb, CEE_ADD);
9921 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9922 mono_mb_emit_byte (mb, CEE_MUL);
9923 mono_mb_emit_ldloc (mb, realidx);
9924 mono_mb_emit_byte (mb, CEE_ADD);
9925 mono_mb_emit_stloc (mb, ind);
9928 /* return array->vector + ind * element_size */
9929 mono_mb_emit_ldarg (mb, 0);
9930 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9931 mono_mb_emit_ldloc (mb, ind);
9932 mono_mb_emit_icon (mb, elem_size);
9933 mono_mb_emit_byte (mb, CEE_MUL);
9934 mono_mb_emit_byte (mb, CEE_ADD);
9935 mono_mb_emit_byte (mb, CEE_RET);
9937 /* patch the branches to get here and throw */
9938 for (i = 1; i < rank; ++i) {
9939 mono_mb_patch_branch (mb, branch_positions [i]);
9941 mono_mb_patch_branch (mb, branch_pos);
9942 /* throw exception */
9943 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9945 g_free (branch_positions);
9946 ret = mono_mb_create_method (mb, sig, 4);
9949 /* cache the result */
9951 mono_marshal_lock ();
9952 for (i = 0; i < elem_addr_cache_next; ++i) {
9953 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9954 /* FIXME: free ret */
9955 ret = elem_addr_cache [i].method;
9961 if (elem_addr_cache_next >= elem_addr_cache_size) {
9962 int new_size = elem_addr_cache_size + 4;
9963 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9964 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9965 g_free (elem_addr_cache);
9966 elem_addr_cache = new_array;
9967 elem_addr_cache_size = new_size;
9969 elem_addr_cache [elem_addr_cache_next].rank = rank;
9970 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9971 elem_addr_cache [elem_addr_cache_next].method = ret;
9973 mono_marshal_unlock ();
9978 mono_marshal_get_write_barrier (void)
9980 static MonoMethod* ret = NULL;
9981 MonoMethodSignature *sig;
9982 MonoMethodBuilder *mb;
9988 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
9990 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9992 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
9993 sig->ret = &mono_defaults.void_class->byval_arg;
9994 sig->params [0] = &mono_defaults.object_class->this_arg;
9995 sig->params [1] = &mono_defaults.object_class->byval_arg;
9997 /* just the store right now: add an hook for the GC to use, maybe something
9998 * that can be used for stelemref as well
9999 * We need a write barrier variant to be used with struct copies as well, though
10000 * there are also other approaches possible, like writing a wrapper specific to
10001 * the struct or to the reference pattern in the struct...
10002 * Depending on the GC, we may want variants that take the object we store to
10003 * when it is available.
10005 mono_mb_emit_ldarg (mb, 0);
10006 mono_mb_emit_ldarg (mb, 1);
10007 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
10008 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
10010 mono_mb_emit_byte (mb, CEE_RET);
10012 ret = mono_mb_create_method (mb, sig, max_stack);
10018 mono_marshal_alloc (gulong size)
10022 #ifdef PLATFORM_WIN32
10023 res = CoTaskMemAlloc (size);
10025 res = g_try_malloc ((gulong)size);
10027 mono_gc_out_of_memory ((gulong)size);
10033 mono_marshal_free (gpointer ptr)
10035 #ifdef PLATFORM_WIN32
10036 CoTaskMemFree (ptr);
10043 mono_marshal_free_array (gpointer *ptr, int size)
10050 for (i = 0; i < size; i++)
10056 mono_marshal_string_to_utf16 (MonoString *s)
10058 return s ? mono_string_chars (s) : NULL;
10062 mono_marshal_string_to_utf16_copy (MonoString *s)
10067 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10068 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10069 res [mono_string_length (s)] = 0;
10075 * mono_marshal_set_last_error:
10077 * This function is invoked to set the last error value from a P/Invoke call
10078 * which has SetLastError set.
10081 mono_marshal_set_last_error (void)
10084 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10086 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10091 mono_marshal_set_last_error_windows (int error)
10094 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10099 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10100 gpointer dest, gint32 length)
10105 MONO_ARCH_SAVE_REGS;
10107 MONO_CHECK_ARG_NULL (src);
10108 MONO_CHECK_ARG_NULL (dest);
10110 if (src->obj.vtable->klass->rank != 1)
10111 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10112 if (start_index < 0)
10113 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10115 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10116 if (start_index + length > mono_array_length (src))
10117 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10119 element_size = mono_array_element_size (src->obj.vtable->klass);
10121 /* no references should be involved */
10122 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10124 memcpy (dest, source_addr, length * element_size);
10128 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10129 MonoArray *dest, gint32 length)
10134 MONO_ARCH_SAVE_REGS;
10136 MONO_CHECK_ARG_NULL (src);
10137 MONO_CHECK_ARG_NULL (dest);
10139 if (dest->obj.vtable->klass->rank != 1)
10140 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10141 if (start_index < 0)
10142 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10144 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10145 if (start_index + length > mono_array_length (dest))
10146 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10148 element_size = mono_array_element_size (dest->obj.vtable->klass);
10150 /* no references should be involved */
10151 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10153 memcpy (dest_addr, src, length * element_size);
10156 #if NO_UNALIGNED_ACCESS
10157 #define RETURN_UNALIGNED(type, addr) \
10160 memcpy(&val, p + offset, sizeof(val)); \
10163 #define WRITE_UNALIGNED(type, addr, val) \
10164 memcpy(addr, &val, sizeof(type))
10166 #define RETURN_UNALIGNED(type, addr) \
10167 return *(type*)(p + offset);
10168 #define WRITE_UNALIGNED(type, addr, val) \
10169 (*(type *)(addr) = (val))
10173 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10177 MONO_ARCH_SAVE_REGS;
10179 RETURN_UNALIGNED(gpointer, p + offset);
10183 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10187 MONO_ARCH_SAVE_REGS;
10189 return *(unsigned char*)(p + offset);
10193 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10197 MONO_ARCH_SAVE_REGS;
10199 RETURN_UNALIGNED(gint16, p + offset);
10203 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10207 MONO_ARCH_SAVE_REGS;
10209 RETURN_UNALIGNED(gint32, p + offset);
10213 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10217 MONO_ARCH_SAVE_REGS;
10219 RETURN_UNALIGNED(gint64, p + offset);
10223 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10227 MONO_ARCH_SAVE_REGS;
10229 *(unsigned char*)(p + offset) = val;
10233 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10237 MONO_ARCH_SAVE_REGS;
10239 WRITE_UNALIGNED(gpointer, p + offset, val);
10243 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10247 MONO_ARCH_SAVE_REGS;
10249 WRITE_UNALIGNED(gint16, p + offset, val);
10253 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10257 MONO_ARCH_SAVE_REGS;
10259 WRITE_UNALIGNED(gint32, p + offset, val);
10263 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10267 MONO_ARCH_SAVE_REGS;
10269 WRITE_UNALIGNED(gint64, p + offset, val);
10273 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10275 MONO_ARCH_SAVE_REGS;
10280 return mono_string_new (mono_domain_get (), ptr);
10284 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10286 MONO_ARCH_SAVE_REGS;
10289 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10290 g_assert_not_reached ();
10293 return mono_string_new_len (mono_domain_get (), ptr, len);
10298 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10300 MonoDomain *domain = mono_domain_get ();
10304 MONO_ARCH_SAVE_REGS;
10312 return mono_string_new_utf16 (domain, ptr, len);
10316 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10318 MonoDomain *domain = mono_domain_get ();
10320 MONO_ARCH_SAVE_REGS;
10323 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10324 g_assert_not_reached ();
10327 return mono_string_new_utf16 (domain, ptr, len);
10332 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10334 MONO_ARCH_SAVE_REGS;
10336 return mono_string_from_bstr(ptr);
10340 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10342 MONO_ARCH_SAVE_REGS;
10344 return mono_string_to_bstr(ptr);
10349 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10350 int (STDCALL *AddRef)(gpointer pUnk);
10351 int (STDCALL *Release)(gpointer pUnk);
10355 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10357 MONO_ARCH_SAVE_REGS;
10359 mono_free_bstr (ptr);
10363 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10366 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10370 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10373 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10377 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10380 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10384 cominterop_get_idispatch_for_object (MonoObject* object)
10389 if (cominterop_object_is_rcw (object)) {
10390 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10391 mono_defaults.idispatch_class, TRUE);
10394 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10399 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10404 if (cominterop_object_is_rcw (object)) {
10405 MonoClass *klass = NULL;
10406 MonoRealProxy* real_proxy = NULL;
10409 klass = mono_object_class (object);
10410 if (klass != mono_defaults.transparent_proxy_class) {
10411 g_assert_not_reached ();
10415 real_proxy = ((MonoTransparentProxy*)object)->rp;
10417 g_assert_not_reached ();
10421 klass = mono_object_class (real_proxy);
10422 if (klass != mono_defaults.com_interop_proxy_class) {
10423 g_assert_not_reached ();
10427 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10428 g_assert_not_reached ();
10432 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10435 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10440 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10442 MonoObject* object = NULL;
10447 /* see if it is a CCW */
10448 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10454 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10456 return cominterop_get_idispatch_for_object (object);
10460 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10462 MonoClass* klass = NULL;
10465 g_assert (type->type);
10466 klass = mono_type_get_class (type->type);
10468 itf = cominterop_get_ccw (object, klass);
10475 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10477 return (MonoBoolean)cominterop_object_is_rcw (object);
10481 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10483 MonoComInteropProxy* proxy = NULL;
10484 gint32 ref_count = 0;
10487 g_assert (cominterop_object_is_rcw (object));
10489 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10492 ref_count = InterlockedDecrement (&proxy->ref_count);
10493 g_assert (ref_count >= 0);
10495 if (ref_count == 0)
10496 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10502 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10504 MONO_ARCH_SAVE_REGS;
10506 return cominterop_get_com_slot_for_method (m->method);
10510 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10512 MONO_ARCH_SAVE_REGS;
10514 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10518 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10524 MONO_ARCH_SAVE_REGS;
10526 MONO_CHECK_ARG_NULL (rtype);
10528 type = rtype->type;
10529 klass = mono_class_from_mono_type (type);
10530 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10532 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10534 MonoException *exc;
10536 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10537 exc = mono_get_exception_argument ("t", msg);
10539 mono_raise_exception (exc);
10543 return mono_class_native_size (klass, NULL);
10547 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10549 MonoMethod *method;
10552 MONO_ARCH_SAVE_REGS;
10554 MONO_CHECK_ARG_NULL (obj);
10555 MONO_CHECK_ARG_NULL (dst);
10557 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10561 pa [2] = &delete_old;
10563 mono_runtime_invoke (method, NULL, pa, NULL);
10567 ptr_to_structure (gpointer src, MonoObject *dst)
10569 MonoMethod *method;
10572 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10577 mono_runtime_invoke (method, NULL, pa, NULL);
10581 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10585 MONO_ARCH_SAVE_REGS;
10587 MONO_CHECK_ARG_NULL (src);
10588 MONO_CHECK_ARG_NULL (dst);
10590 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10592 if (t->type == MONO_TYPE_VALUETYPE) {
10593 MonoException *exc;
10596 tmp = g_strdup_printf ("Destination is a boxed value type.");
10597 exc = mono_get_exception_argument ("dst", tmp);
10600 mono_raise_exception (exc);
10604 ptr_to_structure (src, dst);
10608 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10610 MonoDomain *domain = mono_domain_get ();
10613 MONO_ARCH_SAVE_REGS;
10615 MONO_CHECK_ARG_NULL (src);
10616 MONO_CHECK_ARG_NULL (type);
10618 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10620 ptr_to_structure (src, res);
10626 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10628 MonoMarshalType *info;
10631 int match_index = -1;
10633 MONO_ARCH_SAVE_REGS;
10635 MONO_CHECK_ARG_NULL (type);
10636 MONO_CHECK_ARG_NULL (field_name);
10638 fname = mono_string_to_utf8 (field_name);
10639 klass = mono_class_from_mono_type (type->type);
10641 while (klass && match_index == -1) {
10642 MonoClassField* field;
10644 gpointer iter = NULL;
10645 while ((field = mono_class_get_fields (klass, &iter))) {
10646 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10648 if (!strcmp (fname, field->name)) {
10655 if (match_index == -1)
10656 klass = klass->parent;
10661 if(match_index == -1) {
10662 MonoException* exc;
10665 /* Get back original class instance */
10666 klass = mono_class_from_mono_type (type->type);
10668 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10669 exc = mono_get_exception_argument ("fieldName", tmp);
10672 mono_raise_exception ((MonoException*)exc);
10675 info = mono_marshal_load_type_info (klass);
10676 return info->fields [match_index].offset;
10680 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10682 #ifdef PLATFORM_WIN32
10685 tres = mono_string_to_utf8 (string);
10689 len = strlen (tres) + 1;
10690 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10691 memcpy (ret, tres, len);
10696 return mono_string_to_utf8 (string);
10701 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10703 MONO_ARCH_SAVE_REGS;
10705 if (string == NULL)
10708 #ifdef PLATFORM_WIN32
10709 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10710 ((mono_string_length (string) + 1) * 2);
10712 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10714 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10715 res [mono_string_length (string)] = 0;
10721 mono_struct_delete_old (MonoClass *klass, char *ptr)
10723 MonoMarshalType *info;
10726 info = mono_marshal_load_type_info (klass);
10728 for (i = 0; i < info->num_fields; i++) {
10729 MonoMarshalNative ntype;
10730 MonoMarshalConv conv;
10731 MonoType *ftype = info->fields [i].field->type;
10734 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10737 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10738 klass->unicode, &conv);
10740 cpos = ptr + info->fields [i].offset;
10743 case MONO_MARSHAL_CONV_NONE:
10744 if (MONO_TYPE_ISSTRUCT (ftype)) {
10745 mono_struct_delete_old (ftype->data.klass, cpos);
10749 case MONO_MARSHAL_CONV_STR_LPWSTR:
10750 /* We assume this field points inside a MonoString */
10752 case MONO_MARSHAL_CONV_STR_LPTSTR:
10753 #ifdef PLATFORM_WIN32
10754 /* We assume this field points inside a MonoString
10758 case MONO_MARSHAL_CONV_STR_LPSTR:
10759 case MONO_MARSHAL_CONV_STR_BSTR:
10760 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10761 case MONO_MARSHAL_CONV_STR_TBSTR:
10762 mono_marshal_free (*(gpointer *)cpos);
10772 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10776 MONO_ARCH_SAVE_REGS;
10778 MONO_CHECK_ARG_NULL (src);
10779 MONO_CHECK_ARG_NULL (type);
10781 klass = mono_class_from_mono_type (type->type);
10783 mono_struct_delete_old (klass, (char *)src);
10787 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10791 MONO_ARCH_SAVE_REGS;
10793 if ((gulong)size == 0)
10794 /* This returns a valid pointer for size 0 on MS.NET */
10797 #ifdef PLATFORM_WIN32
10798 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10800 res = g_try_malloc ((gulong)size);
10803 mono_gc_out_of_memory ((gulong)size);
10809 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10814 mono_gc_out_of_memory ((gulong)size);
10818 #ifdef PLATFORM_WIN32
10819 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10821 res = g_try_realloc (ptr, (gulong)size);
10824 mono_gc_out_of_memory ((gulong)size);
10830 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10832 MONO_ARCH_SAVE_REGS;
10834 #ifdef PLATFORM_WIN32
10842 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10844 MONO_ARCH_SAVE_REGS;
10846 #ifdef PLATFORM_WIN32
10847 return CoTaskMemAlloc (size);
10849 return g_try_malloc ((gulong)size);
10854 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10856 MONO_ARCH_SAVE_REGS;
10858 #ifdef PLATFORM_WIN32
10859 CoTaskMemFree (ptr);
10866 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10868 MONO_ARCH_SAVE_REGS;
10870 #ifdef PLATFORM_WIN32
10871 return CoTaskMemRealloc (ptr, size);
10873 return g_try_realloc (ptr, (gulong)size);
10878 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10880 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10884 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10886 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10889 /* Only used for COM RCWs */
10891 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10894 MonoDomain *domain;
10897 MONO_ARCH_SAVE_REGS;
10899 domain = mono_object_domain (type);
10900 klass = mono_class_from_mono_type (type->type);
10902 /* call mono_object_new_alloc_specific instead of mono_object_new
10903 * because we want to actually create object. mono_object_new checks
10904 * to see if type is import and creates transparent proxy. this method
10905 * is called by the corresponding real proxy to create the real RCW.
10906 * Constructor does not need to be called. Will be called later.
10908 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10913 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10915 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10920 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10923 if (obj->itf_hash) {
10924 guint32 gchandle = 0;
10925 mono_cominterop_lock ();
10926 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10928 mono_gchandle_free (gchandle);
10929 g_hash_table_remove (rcw_hash, obj->iunknown);
10932 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10933 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10934 obj->itf_hash = obj->iunknown = NULL;
10935 mono_cominterop_unlock ();
10940 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
10942 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
10946 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
10948 guint32 gchandle = 0;
10950 mono_cominterop_lock ();
10951 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
10952 mono_cominterop_unlock ();
10955 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
10957 mono_cominterop_lock ();
10958 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
10959 mono_cominterop_unlock ();
10962 MonoComInteropProxy*
10963 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
10965 MonoComInteropProxy* proxy = NULL;
10966 guint32 gchandle = 0;
10968 mono_cominterop_lock ();
10970 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
10971 mono_cominterop_unlock ();
10973 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
10974 /* proxy is null means we need to free up old RCW */
10976 mono_gchandle_free (gchandle);
10977 g_hash_table_remove (rcw_hash, pUnk);
10984 * mono_marshal_is_loading_type_info:
10986 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10990 mono_marshal_is_loading_type_info (MonoClass *klass)
10992 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10994 return g_slist_find (loads_list, klass) != NULL;
10998 * mono_marshal_load_type_info:
11000 * Initialize klass->marshal_info using information from metadata. This function can
11001 * recursively call itself, and the caller is responsible to avoid that by calling
11002 * mono_marshal_is_loading_type_info () beforehand.
11004 * LOCKING: Acquires the loader lock.
11007 mono_marshal_load_type_info (MonoClass* klass)
11010 guint32 native_size = 0, min_align = 1;
11011 MonoMarshalType *info;
11012 MonoClassField* field;
11015 GSList *loads_list;
11017 g_assert (klass != NULL);
11019 if (klass->marshal_info)
11020 return klass->marshal_info;
11022 if (!klass->inited)
11023 mono_class_init (klass);
11025 mono_loader_lock ();
11027 if (klass->marshal_info) {
11028 mono_loader_unlock ();
11029 return klass->marshal_info;
11033 * This function can recursively call itself, so we keep the list of classes which are
11034 * under initialization in a TLS list.
11036 g_assert (!mono_marshal_is_loading_type_info (klass));
11037 loads_list = TlsGetValue (load_type_info_tls_id);
11038 loads_list = g_slist_prepend (loads_list, klass);
11039 TlsSetValue (load_type_info_tls_id, loads_list);
11042 while ((field = mono_class_get_fields (klass, &iter))) {
11043 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11045 if (mono_field_is_deleted (field))
11050 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11052 /* The mempool is protected by the loader lock */
11053 info = mono_mempool_alloc0 (klass->image->mempool, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
11054 info->num_fields = count;
11056 /* Try to find a size for this type in metadata */
11057 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11059 if (klass->parent) {
11060 int parent_size = mono_class_native_size (klass->parent, NULL);
11062 /* Add parent size to real size */
11063 native_size += parent_size;
11064 info->native_size = parent_size;
11069 while ((field = mono_class_get_fields (klass, &iter))) {
11073 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11076 if (mono_field_is_deleted (field))
11078 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11079 mono_metadata_field_info_with_mempool (klass->image->mempool, klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11080 NULL, NULL, &info->fields [j].mspec);
11082 info->fields [j].field = field;
11084 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11085 (strcmp (field->name, "$PRIVATE$") == 0)) {
11086 /* This field is a hack inserted by MCS to empty structures */
11091 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11092 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11093 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11094 &align, TRUE, klass->unicode);
11095 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11096 min_align = MAX (align, min_align);
11097 info->fields [j].offset = info->native_size;
11098 info->fields [j].offset += align - 1;
11099 info->fields [j].offset &= ~(align - 1);
11100 info->native_size = info->fields [j].offset + size;
11102 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11103 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11104 &align, TRUE, klass->unicode);
11105 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11106 min_align = MAX (align, min_align);
11107 info->fields [j].offset = field->offset - sizeof (MonoObject);
11108 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11114 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11115 info->native_size = MAX (native_size, info->native_size);
11118 if (info->native_size & (min_align - 1)) {
11119 info->native_size += min_align - 1;
11120 info->native_size &= ~(min_align - 1);
11123 /* Update the class's blittable info, if the layouts don't match */
11124 if (info->native_size != mono_class_value_size (klass, NULL))
11125 klass->blittable = FALSE;
11127 /* If this is an array type, ensure that we have element info */
11128 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11129 mono_marshal_load_type_info (klass->element_class);
11132 loads_list = TlsGetValue (load_type_info_tls_id);
11133 loads_list = g_slist_remove (loads_list, klass);
11134 TlsSetValue (load_type_info_tls_id, loads_list);
11136 /*We do double-checking locking on marshal_info */
11137 mono_memory_barrier ();
11139 klass->marshal_info = info;
11141 mono_loader_unlock ();
11143 return klass->marshal_info;
11147 * mono_class_native_size:
11150 * Returns: the native size of an object instance (when marshaled
11151 * to unmanaged code)
11154 mono_class_native_size (MonoClass *klass, guint32 *align)
11156 if (!klass->marshal_info) {
11157 if (mono_marshal_is_loading_type_info (klass)) {
11162 mono_marshal_load_type_info (klass);
11167 *align = klass->min_align;
11169 return klass->marshal_info->native_size;
11173 * mono_type_native_stack_size:
11174 * @t: the type to return the size it uses on the stack
11176 * Returns: the number of bytes required to hold an instance of this
11177 * type on the native stack
11180 mono_type_native_stack_size (MonoType *t, guint32 *align)
11184 g_assert (t != NULL);
11195 case MONO_TYPE_BOOLEAN:
11196 case MONO_TYPE_CHAR:
11205 case MONO_TYPE_STRING:
11206 case MONO_TYPE_OBJECT:
11207 case MONO_TYPE_CLASS:
11208 case MONO_TYPE_SZARRAY:
11209 case MONO_TYPE_PTR:
11210 case MONO_TYPE_FNPTR:
11211 case MONO_TYPE_ARRAY:
11212 case MONO_TYPE_TYPEDBYREF:
11223 case MONO_TYPE_VALUETYPE: {
11226 if (t->data.klass->enumtype)
11227 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
11229 size = mono_class_native_size (t->data.klass, align);
11230 *align = *align + 3;
11240 g_error ("type 0x%02x unknown", t->type);
11245 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11246 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11247 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11248 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11251 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11252 gboolean as_field, gboolean unicode)
11254 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11257 switch (native_type) {
11258 case MONO_NATIVE_BOOLEAN:
11261 case MONO_NATIVE_I1:
11262 case MONO_NATIVE_U1:
11265 case MONO_NATIVE_I2:
11266 case MONO_NATIVE_U2:
11267 case MONO_NATIVE_VARIANTBOOL:
11270 case MONO_NATIVE_I4:
11271 case MONO_NATIVE_U4:
11272 case MONO_NATIVE_ERROR:
11275 case MONO_NATIVE_I8:
11276 case MONO_NATIVE_U8:
11277 *align = ALIGNMENT(guint64);
11279 case MONO_NATIVE_R4:
11282 case MONO_NATIVE_R8:
11283 *align = ALIGNMENT(double);
11285 case MONO_NATIVE_INT:
11286 case MONO_NATIVE_UINT:
11287 case MONO_NATIVE_LPSTR:
11288 case MONO_NATIVE_LPWSTR:
11289 case MONO_NATIVE_LPTSTR:
11290 case MONO_NATIVE_BSTR:
11291 case MONO_NATIVE_ANSIBSTR:
11292 case MONO_NATIVE_TBSTR:
11293 case MONO_NATIVE_LPARRAY:
11294 case MONO_NATIVE_SAFEARRAY:
11295 case MONO_NATIVE_IUNKNOWN:
11296 case MONO_NATIVE_IDISPATCH:
11297 case MONO_NATIVE_INTERFACE:
11298 case MONO_NATIVE_ASANY:
11299 case MONO_NATIVE_FUNC:
11300 case MONO_NATIVE_LPSTRUCT:
11301 *align = ALIGNMENT(gpointer);
11302 return sizeof (gpointer);
11303 case MONO_NATIVE_STRUCT:
11304 klass = mono_class_from_mono_type (type);
11305 if (klass == mono_defaults.object_class &&
11306 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11310 return mono_class_native_size (klass, align);
11311 case MONO_NATIVE_BYVALTSTR: {
11312 int esize = unicode ? 2: 1;
11315 return mspec->data.array_data.num_elem * esize;
11317 case MONO_NATIVE_BYVALARRAY: {
11318 // FIXME: Have to consider ArraySubType
11320 klass = mono_class_from_mono_type (type);
11321 if (klass->element_class == mono_defaults.char_class) {
11322 esize = unicode ? 2 : 1;
11325 esize = mono_class_native_size (klass->element_class, align);
11328 return mspec->data.array_data.num_elem * esize;
11330 case MONO_NATIVE_CUSTOM:
11331 *align = sizeof (gpointer);
11332 return sizeof (gpointer);
11334 case MONO_NATIVE_CURRENCY:
11335 case MONO_NATIVE_VBBYREFSTR:
11337 g_error ("native type %02x not implemented", native_type);
11340 g_assert_not_reached ();
11345 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11353 t = &o->vtable->klass->byval_arg;
11357 case MONO_TYPE_PTR:
11360 case MONO_TYPE_BOOLEAN:
11363 case MONO_TYPE_CHAR:
11368 return mono_object_unbox (o);
11370 case MONO_TYPE_STRING:
11371 switch (string_encoding) {
11372 case MONO_NATIVE_LPWSTR:
11373 return mono_string_to_utf16 ((MonoString*)o);
11375 case MONO_NATIVE_LPSTR:
11376 return mono_string_to_lpstr ((MonoString*)o);
11379 g_warning ("marshaling conversion %d not implemented", string_encoding);
11380 g_assert_not_reached ();
11383 case MONO_TYPE_CLASS:
11384 case MONO_TYPE_VALUETYPE: {
11385 MonoMethod *method;
11388 MonoBoolean delete_old = FALSE;
11390 klass = t->data.klass;
11392 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11395 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11396 klass->blittable || klass->enumtype))
11397 return mono_object_unbox (o);
11399 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11401 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11402 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11406 pa [2] = &delete_old;
11408 mono_runtime_invoke (method, NULL, pa, NULL);
11415 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11421 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11429 t = &o->vtable->klass->byval_arg;
11431 case MONO_TYPE_STRING:
11432 switch (string_encoding) {
11433 case MONO_NATIVE_LPWSTR:
11434 case MONO_NATIVE_LPSTR:
11435 mono_marshal_free (ptr);
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 klass = t->data.klass;
11446 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11447 klass->blittable || klass->enumtype))
11450 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11451 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11457 mono_runtime_invoke (method, NULL, pa, NULL);
11460 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11461 mono_struct_delete_old (klass, ptr);
11464 mono_marshal_free (ptr);
11473 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11475 MonoMethodSignature *sig, *csig;
11476 MonoMethodBuilder *mb;
11480 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11481 mb->method->slot = -1;
11483 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11484 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11486 sig = mono_method_signature (method);
11487 csig = signature_dup (method->klass->image, sig);
11488 csig->generic_param_count = 0;
11490 mono_mb_emit_ldarg (mb, 0);
11491 for (i = 0; i < csig->param_count; i++)
11492 mono_mb_emit_ldarg (mb, i + 1);
11493 mono_mb_emit_managed_call (mb, method, NULL);
11494 mono_mb_emit_byte (mb, CEE_RET);
11496 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11498 /* We can corlib internal methods */
11499 res->skip_visibility = TRUE;
11507 * The mono_win32_compat_* functions are implementations of inline
11508 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11509 * although not exported by kernel32.
11511 * We map the appropiate kernel32 entries to these functions using
11512 * dllmaps declared in the global etc/mono/config.
11516 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11518 if (!dest || !source)
11521 memcpy (dest, source, length);
11525 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11527 memset (dest, fill, length);
11531 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11533 if (!dest || !source)
11536 memmove (dest, source, length);
11540 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11542 memset (dest, 0, length);
11545 /* Put COM Interop related stuff here */
11548 * cominterop_get_ccw_object:
11549 * @ccw_entry: a pointer to the CCWEntry
11550 * @verify: verify ccw_entry is in fact a ccw
11552 * Returns: the corresponding object for the CCW
11555 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11557 MonoCCW *ccw = NULL;
11559 /* no CCW's exist yet */
11560 if (!ccw_interface_hash)
11564 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11567 ccw = ccw_entry->ccw;
11571 return mono_gchandle_get_target (ccw->gc_handle);
11577 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11579 MonoMethodSignature *sig, *csig;
11580 sig = mono_method_signature (method);
11581 /* we copy the signature, so that we can modify it */
11582 /* FIXME: which to use? */
11583 csig = signature_dup (method->klass->image, sig);
11584 /* csig = mono_metadata_signature_dup (sig); */
11586 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11587 #ifdef PLATFORM_WIN32
11588 csig->call_convention = MONO_CALL_STDCALL;
11590 csig->call_convention = MONO_CALL_C;
11595 m->image = method->klass->image;
11603 * cominterop_get_ccw:
11604 * @object: a pointer to the object
11605 * @itf: interface type needed
11607 * Returns: a value indicating if the object is a
11608 * Runtime Callable Wrapper (RCW) for a COM object
11611 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11614 MonoCCW *ccw = NULL;
11615 MonoCCWInterface* ccw_entry = NULL;
11616 gpointer *vtable = NULL;
11617 static gpointer iunknown[3] = {NULL, NULL, NULL};
11618 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11619 MonoClass* iface = NULL;
11620 MonoClass* klass = NULL;
11621 EmitMarshalContext m;
11622 int start_slot = 3;
11623 int method_count = 0;
11624 GList *ccw_list, *ccw_list_item;
11625 MonoCustomAttrInfo *cinfo = NULL;
11630 klass = mono_object_get_class (object);
11633 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11634 if (!ccw_interface_hash)
11635 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11637 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11639 ccw_list_item = ccw_list;
11640 while (ccw_list_item) {
11641 MonoCCW* ccw_iter = ccw_list_item->data;
11642 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11646 ccw_list_item = g_list_next(ccw_list_item);
11649 if (!iunknown [0]) {
11650 iunknown [0] = cominterop_ccw_queryinterface;
11651 iunknown [1] = cominterop_ccw_addref;
11652 iunknown [2] = cominterop_ccw_release;
11655 if (!idispatch [0]) {
11656 idispatch [0] = cominterop_ccw_get_type_info_count;
11657 idispatch [1] = cominterop_ccw_get_type_info;
11658 idispatch [2] = cominterop_ccw_get_ids_of_names;
11659 idispatch [3] = cominterop_ccw_invoke;
11663 ccw = g_new0 (MonoCCW, 1);
11664 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11665 ccw->ref_count = 0;
11666 /* just alloc a weak handle until we are addref'd*/
11667 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11670 ccw_list = g_list_alloc ();
11671 ccw_list->data = ccw;
11674 ccw_list = g_list_append (ccw_list, ccw);
11675 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11676 /* register for finalization to clean up ccw */
11677 mono_object_register_finalizer (object);
11680 cinfo = mono_custom_attrs_from_class (itf);
11682 static MonoClass* coclass_attribute = NULL;
11683 if (!coclass_attribute)
11684 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11685 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11686 g_assert(itf->interface_count && itf->interfaces[0]);
11687 itf = itf->interfaces[0];
11689 if (!cinfo->cached)
11690 mono_custom_attrs_free (cinfo);
11694 if (iface == mono_defaults.iunknown_class) {
11697 else if (iface == mono_defaults.idispatch_class) {
11701 method_count += iface->method.count;
11702 start_slot = cominterop_get_com_slot_begin (iface);
11706 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11709 int vtable_index = method_count-1+start_slot;
11710 mono_loader_lock ();
11711 vtable = mono_mempool_alloc0 (klass->image->mempool, sizeof (gpointer)*(method_count+start_slot));
11712 mono_loader_unlock ();
11713 memcpy (vtable, iunknown, sizeof (iunknown));
11714 if (start_slot == 7)
11715 memcpy (vtable+3, idispatch, sizeof (idispatch));
11718 for (i = iface->method.count-1; i >= 0;i--) {
11719 int param_index = 0;
11720 MonoMethodBuilder *mb;
11721 MonoMarshalSpec ** mspecs;
11722 MonoMethod *wrapper_method, *adjust_method;
11723 MonoMethod *method = iface->methods [i];
11724 MonoMethodSignature* sig_adjusted;
11725 MonoMethodSignature* sig = mono_method_signature (method);
11726 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11729 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11730 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11731 sig_adjusted = mono_method_signature (adjust_method);
11733 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11734 mono_method_get_marshal_info (method, mspecs);
11737 /* move managed args up one */
11738 for (param_index = sig->param_count; param_index >= 1; param_index--)
11739 mspecs [param_index+1] = mspecs [param_index];
11741 /* first arg is IntPtr for interface */
11744 /* move return spec to last param */
11745 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11746 mspecs [sig_adjusted->param_count] = mspecs [0];
11750 cominterop_setup_marshal_context (&m, adjust_method);
11752 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11753 mono_loader_lock ();
11754 mono_marshal_lock ();
11755 wrapper_method = mono_mb_create_method (mb, sig_adjusted, sig_adjusted->param_count + 16);
11756 mono_marshal_unlock ();
11757 mono_loader_unlock ();
11759 /* skip visiblity since we call internal methods */
11760 wrapper_method->skip_visibility = TRUE;
11762 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11765 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11766 if (mspecs [param_index])
11767 mono_metadata_free_marshal_spec (mspecs [param_index]);
11771 ccw_entry = g_new0 (MonoCCWInterface, 1);
11772 ccw_entry->ccw = ccw;
11773 ccw_entry->vtable = vtable;
11774 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11775 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11782 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11790 * mono_marshal_free_ccw:
11791 * @object: the mono object
11793 * Returns: whether the object had a CCW
11796 mono_marshal_free_ccw (MonoObject* object)
11798 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11799 /* no ccw's were created */
11800 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11803 /* need to cache orig list address to remove from hash_table if empty */
11804 mono_cominterop_lock ();
11805 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11806 mono_cominterop_unlock ();
11811 ccw_list_item = ccw_list;
11812 while (ccw_list_item) {
11813 MonoCCW* ccw_iter = ccw_list_item->data;
11814 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11816 /* Looks like the GC NULLs the weakref handle target before running the
11817 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11818 if (!handle_target || handle_target == object) {
11819 /* remove all interfaces */
11820 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11821 g_hash_table_destroy (ccw_iter->vtable_hash);
11823 /* get next before we delete */
11824 ccw_list_item = g_list_next(ccw_list_item);
11826 /* remove ccw from list */
11827 ccw_list = g_list_remove (ccw_list, ccw_iter);
11831 ccw_list_item = g_list_next(ccw_list_item);
11834 /* if list is empty remove original address from hash */
11835 if (g_list_length (ccw_list) == 0)
11836 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11843 * cominterop_get_native_wrapper_adjusted:
11844 * @method: managed COM Interop method
11846 * Returns: the generated method to call with signature matching
11847 * the unmanaged COM Method signature
11849 static MonoMethod *
11850 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11852 static MonoMethod *get_hr_for_exception = NULL;
11853 MonoMethod *res = NULL;
11854 MonoMethodBuilder *mb;
11855 MonoMarshalSpec **mspecs;
11856 MonoMethodSignature *sig, *sig_native;
11857 MonoExceptionClause *main_clause = NULL;
11858 MonoMethodHeader *header;
11862 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11864 if (!get_hr_for_exception)
11865 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11867 sig = mono_method_signature (method);
11869 /* create unmanaged wrapper */
11870 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11872 sig_native = cominterop_method_signature (method);
11874 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11876 mono_method_get_marshal_info (method, mspecs);
11878 /* move managed args up one */
11879 for (i = sig->param_count; i >= 1; i--)
11880 mspecs [i+1] = mspecs [i];
11882 /* first arg is IntPtr for interface */
11885 /* move return spec to last param */
11886 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11887 mspecs [sig_native->param_count] = mspecs [0];
11891 if (!preserve_sig) {
11892 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11895 main_clause = g_new0 (MonoExceptionClause, 1);
11896 main_clause->try_offset = mono_mb_get_label (mb);
11899 /* load last param to store result if not preserve_sig and not void */
11900 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11901 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11903 /* the CCW -> object conversion */
11904 mono_mb_emit_ldarg (mb, 0);
11905 mono_mb_emit_icon (mb, FALSE);
11906 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11908 for (i = 0; i < sig->param_count; i++)
11909 mono_mb_emit_ldarg (mb, i+1);
11911 mono_mb_emit_managed_call (mb, method, NULL);
11913 if (!preserve_sig) {
11914 /* store result if not preserve_sig and we have one */
11915 if (!MONO_TYPE_IS_VOID (sig->ret))
11916 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11918 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11920 /* Main exception catch */
11921 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11922 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
11923 main_clause->data.catch_class = mono_defaults.object_class;
11926 main_clause->handler_offset = mono_mb_get_label (mb);
11927 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11928 mono_mb_emit_stloc (mb, hr);
11929 mono_mb_emit_branch (mb, CEE_LEAVE);
11930 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
11933 mono_mb_patch_branch (mb, pos_leave);
11935 mono_mb_emit_ldloc (mb, hr);
11938 mono_mb_emit_byte (mb, CEE_RET);
11940 mono_loader_lock ();
11941 mono_marshal_lock ();
11942 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
11943 mono_marshal_unlock ();
11944 mono_loader_unlock ();
11948 for (i = sig_native->param_count; i >= 0; i--)
11950 mono_metadata_free_marshal_spec (mspecs [i]);
11953 if (!preserve_sig) {
11954 header = ((MonoMethodNormal *)res)->header;
11955 header->num_clauses = 1;
11956 header->clauses = main_clause;
11963 * cominterop_mono_string_to_guid:
11965 * Converts the standard string representation of a GUID
11966 * to a 16 byte Microsoft GUID.
11969 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
11970 gunichar2 * chars = mono_string_chars (string);
11972 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
11974 for (i = 0; i < sizeof(indexes); i++)
11975 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
11979 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
11981 guint8 klass_guid [16];
11982 if (cominterop_class_guid (klass, klass_guid))
11983 return !memcmp (guid, klass_guid, sizeof (klass_guid));
11988 cominterop_ccw_addref (MonoCCWInterface* ccwe)
11990 gint32 ref_count = 0;
11991 MonoCCW* ccw = ccwe->ccw;
11993 g_assert (ccw->gc_handle);
11994 g_assert (ccw->ref_count >= 0);
11995 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
11996 if (ref_count == 1) {
11997 guint32 oldhandle = ccw->gc_handle;
11998 g_assert (oldhandle);
11999 /* since we now have a ref count, alloc a strong handle*/
12000 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
12001 mono_gchandle_free (oldhandle);
12007 cominterop_ccw_release (MonoCCWInterface* ccwe)
12009 gint32 ref_count = 0;
12010 MonoCCW* ccw = ccwe->ccw;
12012 g_assert (ccw->ref_count > 0);
12013 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
12014 if (ref_count == 0) {
12015 /* allow gc of object */
12016 guint32 oldhandle = ccw->gc_handle;
12017 g_assert (oldhandle);
12018 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
12019 mono_gchandle_free (oldhandle);
12024 #define MONO_S_OK 0x00000000L
12025 #define MONO_E_NOINTERFACE 0x80004002L
12026 #define MONO_E_NOTIMPL 0x80004001L
12029 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
12032 MonoClass *itf = NULL;
12034 MonoCCW* ccw = ccwe->ccw;
12035 MonoClass* klass = NULL;
12036 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
12039 klass = mono_object_class (object);
12044 /* handle IUnknown special */
12045 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
12046 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
12047 /* remember to addref on QI */
12048 cominterop_ccw_addref (*ppv);
12052 /* handle IDispatch special */
12053 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
12054 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
12055 /* remember to addref on QI */
12056 cominterop_ccw_addref (*ppv);
12060 ifaces = mono_class_get_implemented_interfaces (klass);
12062 for (i = 0; i < ifaces->len; ++i) {
12063 MonoClass *ic = NULL;
12064 ic = g_ptr_array_index (ifaces, i);
12065 if (cominterop_class_guid_equal (riid, ic)) {
12070 g_ptr_array_free (ifaces, TRUE);
12073 *ppv = cominterop_get_ccw (object, itf);
12074 /* remember to addref on QI */
12075 cominterop_ccw_addref (*ppv);
12079 return MONO_E_NOINTERFACE;
12083 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
12085 return MONO_E_NOTIMPL;
12089 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
12091 return MONO_E_NOTIMPL;
12095 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
12096 gunichar2** rgszNames, guint32 cNames,
12097 guint32 lcid, gint32 *rgDispId)
12099 return MONO_E_NOTIMPL;
12103 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
12104 gpointer riid, guint32 lcid,
12105 guint16 wFlags, gpointer pDispParams,
12106 gpointer pVarResult, gpointer pExcepInfo,
12109 return MONO_E_NOTIMPL;
12113 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12118 for (i = 0; i < len; ++i)
12122 g_assert (i < len);
12125 while (byte && !(byte & 1))
12127 g_assert (byte == 1);
12130 *bitmask = buf [i];
12134 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12136 MonoMethodBuilder *mb;
12137 MonoMethodSignature *sig, *csig;
12138 MonoExceptionClause *clause;
12139 MonoMethodHeader *header;
12144 int i, param_count, sig_size, pos_leave;
12148 klass = method->klass;
12149 image = method->klass->image;
12150 cache = image->thunk_invoke_cache;
12152 if ((res = mono_marshal_find_in_cache (cache, method)))
12155 sig = mono_method_signature (method);
12156 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12158 /* add "this" and exception param */
12159 param_count = sig->param_count + sig->hasthis + 1;
12161 /* dup & extend signature */
12162 csig = mono_metadata_signature_alloc (image, param_count);
12163 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
12164 memcpy (csig, sig, sig_size);
12165 csig->param_count = param_count;
12168 csig->call_convention = MONO_CALL_DEFAULT;
12170 if (sig->hasthis) {
12172 csig->params [0] = &klass->byval_arg;
12173 /* move params up by one */
12174 for (i = 0; i < sig->param_count; i++)
12175 csig->params [i + 1] = sig->params [i];
12178 /* setup exception param as byref+[out] */
12179 csig->params [param_count - 1] = mono_metadata_type_dup (image->mempool,
12180 &mono_defaults.exception_class->byval_arg);
12181 csig->params [param_count - 1]->byref = 1;
12182 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12184 /* convert struct return to object */
12185 if (MONO_TYPE_ISSTRUCT (sig->ret))
12186 csig->ret = &mono_defaults.object_class->byval_arg;
12188 /* local 0 (temp for exception object) */
12189 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12191 /* local 1 (temp for result) */
12192 if (!MONO_TYPE_IS_VOID (sig->ret))
12193 mono_mb_add_local (mb, sig->ret);
12195 /* clear exception arg */
12196 mono_mb_emit_ldarg (mb, param_count - 1);
12197 mono_mb_emit_byte (mb, CEE_LDNULL);
12198 mono_mb_emit_byte (mb, CEE_STIND_REF);
12201 mono_loader_lock ();
12202 clause = mono_mempool_alloc0 (image->mempool, sizeof (MonoExceptionClause));
12203 mono_loader_unlock ();
12204 clause->try_offset = mono_mb_get_label (mb);
12206 /* push method's args */
12207 for (i = 0; i < param_count - 1; i++) {
12211 mono_mb_emit_ldarg (mb, i);
12213 /* get the byval type of the param */
12214 klass = mono_class_from_mono_type (csig->params [i]);
12215 type = &klass->byval_arg;
12217 /* unbox struct args */
12218 if (MONO_TYPE_ISSTRUCT (type)) {
12219 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12221 /* byref args & and the "this" arg must remain a ptr.
12222 Otherwise make a copy of the value type */
12223 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12224 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12226 csig->params [i] = &mono_defaults.object_class->byval_arg;
12231 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12232 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12234 mono_mb_emit_op (mb, CEE_CALL, method);
12236 /* save result at local 1 */
12237 if (!MONO_TYPE_IS_VOID (sig->ret))
12238 mono_mb_emit_stloc (mb, 1);
12240 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12243 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12244 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12245 clause->data.catch_class = mono_defaults.object_class;
12247 clause->handler_offset = mono_mb_get_label (mb);
12249 /* store exception at local 0 */
12250 mono_mb_emit_stloc (mb, 0);
12251 mono_mb_emit_ldarg (mb, param_count - 1);
12252 mono_mb_emit_ldloc (mb, 0);
12253 mono_mb_emit_byte (mb, CEE_STIND_REF);
12254 mono_mb_emit_branch (mb, CEE_LEAVE);
12256 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12258 mono_mb_patch_branch (mb, pos_leave);
12261 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12262 mono_mb_emit_ldloc (mb, 1);
12264 /* box the return value */
12265 if (MONO_TYPE_ISSTRUCT (sig->ret))
12266 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12269 mono_mb_emit_byte (mb, CEE_RET);
12271 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12274 header = ((MonoMethodNormal *)res)->header;
12275 header->num_clauses = 1;
12276 header->clauses = clause;