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
14 #include "metadata/marshal.h"
15 #include "metadata/tabledefs.h"
16 #include "metadata/exception.h"
17 #include "metadata/appdomain.h"
18 #include "mono/metadata/debug-helpers.h"
19 #include "mono/metadata/threadpool.h"
20 #include "mono/metadata/threads.h"
21 #include "mono/metadata/monitor.h"
22 #include "mono/metadata/metadata-internals.h"
23 #include "mono/metadata/domain-internals.h"
24 #include "mono/metadata/gc-internal.h"
25 #include "mono/metadata/threads-types.h"
26 #include "mono/metadata/string-icalls.h"
27 #include <mono/os/gc_wrapper.h>
31 /* #define DEBUG_RUNTIME_CODE */
33 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
37 MONO_MARSHAL_NONE, /* No marshalling needed */
38 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
39 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
40 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
41 } MonoXDomainMarshalType;
44 #include "mono/cil/opcode.def"
49 struct _MonoMethodBuilder {
55 guint32 code_size, pos;
59 struct _MonoRemotingMethods {
61 MonoMethod *invoke_with_check;
62 MonoMethod *xdomain_invoke;
63 MonoMethod *xdomain_dispatch;
66 typedef struct _MonoRemotingMethods MonoRemotingMethods;
68 #ifdef DEBUG_RUNTIME_CODE
70 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
72 return g_strdup (" ");
75 static MonoDisHelper marshal_dh = {
86 * This mutex protects the various marshalling related caches in MonoImage
87 * and a few other data structures static to this file.
88 * Note that when this lock is held it is not possible to take other runtime
89 * locks like the loader lock.
91 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
92 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
93 static CRITICAL_SECTION marshal_mutex;
95 /* This mutex protects the various cominterop related caches in MonoImage */
96 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
97 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
98 static CRITICAL_SECTION cominterop_mutex;
100 /* Maps wrapper methods to the methods they wrap */
101 static GHashTable *wrapper_hash;
103 static guint32 last_error_tls_id;
105 static guint32 load_type_info_tls_id;
108 delegate_hash_table_add (MonoDelegate *d);
111 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
114 mono_struct_delete_old (MonoClass *klass, char *ptr);
117 mono_marshal_string_to_utf16 (MonoString *s);
120 mono_marshal_string_to_utf16_copy (MonoString *s);
123 mono_string_to_lpstr (MonoString *string_obj);
126 mono_string_from_bstr (gpointer bstr);
129 mono_free_bstr (gpointer bstr);
132 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
135 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
138 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
140 static MonoAsyncResult *
141 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
147 mono_marshal_xdomain_copy_value (MonoObject *val);
150 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
153 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
156 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
159 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
161 static MonoReflectionType *
162 type_from_handle (MonoType *handle);
165 mono_marshal_set_last_error_windows (int error);
168 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func);
170 static void init_safe_handle (void);
172 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
173 static MonoMethod *sh_dangerous_add_ref;
174 static MonoMethod *sh_dangerous_release;
180 sh_dangerous_add_ref = mono_class_get_method_from_name (
181 mono_defaults.safehandle_class, "DangerousAddRef", 1);
182 sh_dangerous_release = mono_class_get_method_from_name (
183 mono_defaults.safehandle_class, "DangerousRelease", 0);
187 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
189 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
191 mono_register_jit_icall (func, name, sig, save);
194 static MonoMethodSignature*
195 signature_dup (MonoImage *image, MonoMethodSignature *sig)
197 MonoMethodSignature *res;
200 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
202 res = mono_mempool_alloc (image->mempool, sigsize);
203 mono_loader_unlock ();
204 memcpy (res, sig, sigsize);
209 static MonoMethodSignature*
210 signature_no_pinvoke (MonoMethod *method)
212 MonoMethodSignature *sig = mono_method_signature (method);
214 sig = signature_dup (method->klass->image, sig);
215 sig->pinvoke = FALSE;
221 /* Begin COM Interop related stuff until seperate file */
224 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
225 #ifdef PLATFORM_WIN32
226 #define STDCALL __stdcall
231 /* Upon creation of a CCW, only allocate a weak handle and set the
232 * reference count to 0. If the unmanaged client code decides to addref and
233 * hold onto the CCW, I then allocate a strong handle. Once the reference count
234 * goes back to 0, convert back to a weak handle.
239 GHashTable* vtable_hash;
242 /* This type is the actual pointer passed to unmanaged code
243 * to represent a COM interface.
251 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
253 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
255 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
258 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
260 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
262 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
263 gunichar2** rgszNames, guint32 cNames,
264 guint32 lcid, gint32 *rgDispId);
266 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
267 gpointer riid, guint32 lcid,
268 guint16 wFlags, gpointer pDispParams,
269 gpointer pVarResult, gpointer pExcepInfo,
273 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
276 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
279 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
282 * cominterop_method_signature:
285 * Returns: the corresponding unmanaged method signature for a managed COM
288 static MonoMethodSignature*
289 cominterop_method_signature (MonoMethod* method)
291 MonoMethodSignature *res;
292 MonoImage *image = method->klass->image;
293 MonoMethodSignature *sig = mono_method_signature (method);
294 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
297 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
299 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
302 sigsize = sizeof (MonoMethodSignature) + ((param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
304 res = mono_mempool_alloc (image->mempool, sigsize);
305 mono_loader_unlock ();
306 memcpy (res, sig, sigsize);
308 // now move args forward one
309 for (i = sig->param_count-1; i >= 0; i--)
310 res->params[i+1] = sig->params[i];
312 // first arg is interface pointer
313 res->params[0] = &mono_defaults.int_class->byval_arg;
319 // last arg is return type
320 if (!MONO_TYPE_IS_VOID (sig->ret)) {
321 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
322 res->params[param_count-1]->byref = 1;
323 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
326 // return type is always int32 (HRESULT)
327 res->ret = &mono_defaults.int32_class->byval_arg;
331 res->pinvoke = FALSE;
337 res->param_count = param_count;
339 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
340 #ifdef PLATFORM_WIN32
341 res->call_convention = MONO_CALL_STDCALL;
343 res->call_convention = MONO_CALL_C;
350 * cominterop_get_function_pointer:
351 * @itf: a pointer to the COM interface
352 * @slot: the vtable slot of the method pointer to return
354 * Returns: the unmanaged vtable function pointer from the interface
357 cominterop_get_function_pointer (gpointer itf, int slot)
360 func = *((*(gpointer**)itf)+slot);
365 * cominterop_object_is_com_object:
366 * @obj: a pointer to the object
368 * Returns: a value indicating if the object is a
369 * Runtime Callable Wrapper (RCW) for a COM object
372 cominterop_object_is_rcw (MonoObject *obj)
374 MonoClass *klass = NULL;
375 MonoRealProxy* real_proxy = NULL;
378 klass = mono_object_class (obj);
379 if (klass != mono_defaults.transparent_proxy_class)
382 real_proxy = ((MonoTransparentProxy*)obj)->rp;
386 klass = mono_object_class (real_proxy);
387 return (klass && klass == mono_defaults.com_interop_proxy_class);
391 cominterop_get_com_slot_begin (MonoClass* klass)
393 static MonoClass *interface_type_attribute = NULL;
394 MonoCustomAttrInfo *cinfo = NULL;
395 MonoInterfaceTypeAttribute* itf_attr = NULL;
397 if (!interface_type_attribute)
398 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
399 cinfo = mono_custom_attrs_from_class (klass);
401 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
403 mono_custom_attrs_free (cinfo);
406 if (itf_attr && itf_attr->intType == 1)
407 return 3; /* 3 methods in IUnknown*/
409 return 7; /* 7 methods in IDispatch*/
413 * cominterop_get_method_interface:
414 * @method: method being called
416 * Returns: the MonoClass* representing the interface on which
417 * the method is defined.
420 cominterop_get_method_interface (MonoMethod* method)
422 MonoClass *ic = method->klass;
424 /* if method is on a class, we need to look up interface method exists on */
425 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
426 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
429 for (i = 0; i < ifaces->len; ++i) {
431 ic = g_ptr_array_index (ifaces, i);
432 offset = mono_class_interface_offset (method->klass, ic);
433 if (method->slot >= offset && method->slot < offset + ic->method.count)
437 g_ptr_array_free (ifaces, TRUE);
442 g_assert (MONO_CLASS_IS_INTERFACE (ic));
448 * cominterop_get_com_slot_for_method:
451 * Returns: the method's slot in the COM interface vtable
454 cominterop_get_com_slot_for_method (MonoMethod* method)
456 guint32 slot = method->slot;
457 MonoClass *ic = method->klass;
459 /* if method is on a class, we need to look up interface method exists on */
460 if (!MONO_CLASS_IS_INTERFACE(ic)) {
462 ic = cominterop_get_method_interface (method);
463 offset = mono_class_interface_offset (method->klass, ic);
464 g_assert(offset >= 0);
469 g_assert (MONO_CLASS_IS_INTERFACE (ic));
471 return slot + cominterop_get_com_slot_begin (ic);
476 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
479 cominterop_class_guid (MonoClass* klass, guint8* guid)
481 static MonoClass *GuidAttribute = NULL;
482 MonoCustomAttrInfo *cinfo;
484 /* Handle the GuidAttribute */
486 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
488 cinfo = mono_custom_attrs_from_class (klass);
490 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
495 mono_custom_attrs_free (cinfo);
497 cominterop_mono_string_to_guid (attr->guid, guid);
504 * cominterop_get_interface:
505 * @obj: managed wrapper object containing COM object
506 * @ic: interface type to retrieve for COM object
508 * Returns: the COM interface requested
511 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
516 g_assert (MONO_CLASS_IS_INTERFACE (ic));
518 mono_cominterop_lock ();
520 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
521 mono_cominterop_unlock ();
525 int found = cominterop_class_guid (ic, iid);
528 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
529 if (hr < 0 && throw_exception) {
530 static MonoMethod* throw_exception_for_hr = NULL;
532 void* params[1] = {&hr};
533 if (!throw_exception_for_hr)
534 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
535 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
536 mono_raise_exception (ex);
539 if (hr >= 0 && itf) {
540 mono_cominterop_lock ();
542 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
543 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
544 mono_cominterop_unlock ();
555 cominterop_get_hresult_for_exception (MonoException* exc)
562 mono_marshal_init (void)
564 static gboolean module_initialized = FALSE;
566 if (!module_initialized) {
567 module_initialized = TRUE;
568 InitializeCriticalSection (&marshal_mutex);
569 InitializeCriticalSection (&cominterop_mutex);
570 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
571 last_error_tls_id = TlsAlloc ();
572 load_type_info_tls_id = TlsAlloc ();
574 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
575 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
576 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
577 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
578 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
579 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
580 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
581 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
582 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
583 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
584 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
585 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
586 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
587 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
588 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
589 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
590 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
591 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
592 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
593 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
594 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
595 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
596 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
597 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
598 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
599 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
600 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
601 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
602 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
603 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
604 register_icall (g_free, "g_free", "void ptr", FALSE);
605 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
606 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
607 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
608 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
609 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
610 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
611 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
612 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
613 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
614 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
615 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
616 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
617 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
618 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
619 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
620 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
621 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
622 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
623 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
624 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
625 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
626 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
631 mono_marshal_cleanup (void)
633 g_hash_table_destroy (wrapper_hash);
634 TlsFree (load_type_info_tls_id);
635 TlsFree (last_error_tls_id);
636 DeleteCriticalSection (&marshal_mutex);
637 DeleteCriticalSection (&cominterop_mutex);
640 MonoClass *byte_array_class;
641 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
642 static MonoMethod *method_set_context, *method_get_context;
643 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
646 mono_remoting_marshal_init (void)
650 static gboolean module_initialized = FALSE;
652 if (!module_initialized) {
653 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
654 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
655 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
656 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
658 klass = mono_defaults.real_proxy_class;
659 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
661 klass = mono_defaults.exception_class;
662 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
664 klass = mono_defaults.thread_class;
665 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
667 klass = mono_defaults.appdomain_class;
668 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
669 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
671 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
672 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
674 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
675 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
677 module_initialized = TRUE;
682 mono_delegate_to_ftnptr (MonoDelegate *delegate)
684 MonoMethod *method, *wrapper;
690 if (delegate->delegate_trampoline)
691 return delegate->delegate_trampoline;
693 klass = ((MonoObject *)delegate)->vtable->klass;
694 g_assert (klass->delegate);
696 method = delegate->method_info->method;
698 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
700 delegate->delegate_trampoline = mono_compile_method (wrapper);
702 // Add the delegate to the delegate hash table
703 delegate_hash_table_add (delegate);
705 /* when the object is collected, collect the dynamic method, too */
706 mono_object_register_finalizer ((MonoObject*)delegate);
708 return delegate->delegate_trampoline;
712 * this hash table maps from a delegate trampoline object to a weak reference
713 * of the delegate. As an optimizations with a non-moving GC we store the
714 * object pointer itself, otherwise we use a GC handle.
716 static GHashTable *delegate_hash_table;
719 delegate_hash_table_new (void) {
720 return g_hash_table_new (NULL, NULL);
724 delegate_hash_table_remove (MonoDelegate *d)
726 #ifdef HAVE_MOVING_COLLECTOR
729 mono_marshal_lock ();
730 if (delegate_hash_table == NULL)
731 delegate_hash_table = delegate_hash_table_new ();
732 #ifdef HAVE_MOVING_COLLECTOR
733 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
735 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
736 mono_marshal_unlock ();
737 #ifdef HAVE_MOVING_COLLECTOR
738 mono_gchandle_free (gchandle);
743 delegate_hash_table_add (MonoDelegate *d)
745 #ifdef HAVE_MOVING_COLLECTOR
746 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
748 mono_marshal_lock ();
749 if (delegate_hash_table == NULL)
750 delegate_hash_table = delegate_hash_table_new ();
751 #ifdef HAVE_MOVING_COLLECTOR
752 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
754 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
756 mono_marshal_unlock ();
760 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
762 #ifdef HAVE_MOVING_COLLECTOR
767 mono_marshal_lock ();
768 if (delegate_hash_table == NULL)
769 delegate_hash_table = delegate_hash_table_new ();
771 #ifdef HAVE_MOVING_COLLECTOR
772 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
773 mono_marshal_unlock ();
775 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
779 d = g_hash_table_lookup (delegate_hash_table, ftn);
780 mono_marshal_unlock ();
783 /* This is a native function, so construct a delegate for it */
784 static MonoClass *UnmanagedFunctionPointerAttribute;
785 MonoMethodSignature *sig;
787 MonoMarshalSpec **mspecs;
788 MonoCustomAttrInfo *cinfo;
789 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
790 MonoMethod *invoke = mono_get_delegate_invoke (klass);
791 MonoMethodPInvoke piinfo;
794 memset (&piinfo, 0, sizeof (piinfo));
795 if (!UnmanagedFunctionPointerAttribute)
796 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
798 /* The attribute is only available in Net 2.0 */
799 if (UnmanagedFunctionPointerAttribute) {
801 * The pinvoke attributes are stored in a real custom attribute so we have to
804 cinfo = mono_custom_attrs_from_class (klass);
806 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
808 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
811 mono_custom_attrs_free (cinfo);
815 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
816 mono_method_get_marshal_info (invoke, mspecs);
817 /* Freed below so don't alloc from mempool */
818 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
821 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
823 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
825 mono_metadata_free_marshal_spec (mspecs [i]);
829 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
830 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
833 if (d->object.vtable->domain != mono_domain_get ())
834 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
840 mono_delegate_free_ftnptr (MonoDelegate *delegate)
845 delegate_hash_table_remove (delegate);
847 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
849 if (!delegate->target) {
850 /* The wrapper method is shared between delegates -> no need to free it */
855 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
858 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
863 mono_array_to_savearray (MonoArray *array)
868 g_assert_not_reached ();
873 mono_array_to_lparray (MonoArray *array)
878 /* fixme: maybe we need to make a copy */
879 return array->vector;
883 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
885 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
887 if (elclass == mono_defaults.byte_class) {
888 GError *error = NULL;
892 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
895 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
899 g_error_free (error);
902 g_assert_not_reached ();
906 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
908 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
910 if (elclass == mono_defaults.byte_class) {
912 GError *error = NULL;
914 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
916 MonoException *exc = mono_get_exception_argument ("string", error->message);
917 g_error_free (error);
918 mono_raise_exception (exc);
921 memcpy (native_arr, as, MIN (strlen (as), elnum));
924 g_assert_not_reached ();
929 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
931 GError *error = NULL;
941 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
943 if (items_written > mono_stringbuilder_capacity (sb))
944 items_written = mono_stringbuilder_capacity (sb);
947 if (! sb->str || sb->str == sb->cached_str) {
948 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
949 sb->cached_str = NULL;
952 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
953 sb->length = items_written;
955 g_error_free (error);
961 * FIXME: This routine does not seem to do what it seems to do
962 * the @text is never copied into the string builder
965 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
972 g_assert (mono_string_chars (sb->str) == text);
974 for (len = 0; text [len] != 0; ++len)
981 * mono_string_builder_to_utf8:
982 * @sb: the string builder
984 * Converts to utf8 the contents of the MonoStringBuilder.
986 * Returns: a utf8 string with the contents of the StringBuilder.
988 * The return value must be released with g_free.
991 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
993 GError *error = NULL;
1000 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
1002 * The sb could have been allocated with the default capacity and be empty.
1003 * we need to alloc a buffer of the default capacity in this case.
1005 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1006 sb->cached_str = NULL;
1009 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
1011 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
1013 g_error_free (error);
1014 mono_marshal_free (res);
1015 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1017 memcpy (res, tmp, sb->length + 1);
1025 * mono_string_builder_to_utf16:
1026 * @sb: the string builder
1028 * Converts to utf16 the contents of the MonoStringBuilder.
1030 * Returns: a utf16 string with the contents of the StringBuilder.
1032 * The return value must not be freed.
1035 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1043 * The stringbuilder might not have ownership of this string. If this is
1044 * the case, we must duplicate the string, so that we don't munge immutable
1047 if (sb->str == sb->cached_str) {
1049 * The sb could have been allocated with the default capacity and be empty.
1050 * we need to alloc a buffer of the default capacity in this case.
1052 if (sb->str->length == 0)
1053 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1055 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1056 sb->cached_str = NULL;
1059 return mono_string_chars (sb->str);
1063 mono_string_to_lpstr (MonoString *s)
1065 #ifdef PLATFORM_WIN32
1068 GError *error = NULL;
1074 as = CoTaskMemAlloc (1);
1079 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1081 MonoException *exc = mono_get_exception_argument ("string", error->message);
1082 g_error_free (error);
1083 mono_raise_exception(exc);
1086 as = CoTaskMemAlloc (len + 1);
1087 memcpy (as, tmp, len + 1);
1092 return mono_string_to_utf8 (s);
1097 mono_string_to_ansibstr (MonoString *string_obj)
1099 g_error ("UnmanagedMarshal.BStr is not implemented.");
1104 mono_string_to_bstr (MonoString *string_obj)
1106 #ifdef PLATFORM_WIN32
1109 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1111 int slen = mono_string_length (string_obj);
1112 char *ret = g_malloc (slen * 2 + 4 + 2);
1115 memcpy (ret + 4, mono_string_chars (string_obj), slen * 2);
1116 * ((guint32 *) ret) = slen * 2;
1117 ret [4 + slen * 2] = 0;
1118 ret [5 + slen * 2] = 0;
1125 mono_string_from_bstr (gpointer bstr)
1127 #ifdef PLATFORM_WIN32
1130 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1132 return mono_string_new_utf16 (mono_domain_get (), bstr, *(guint32 *)((char *)bstr - 4));
1137 mono_free_bstr (gpointer bstr)
1139 #ifdef PLATFORM_WIN32
1140 SysFreeString ((BSTR)bstr);
1142 g_free (((char *)bstr) - 4);
1147 * mono_string_to_byvalstr:
1148 * @dst: Where to store the null-terminated utf8 decoded string.
1149 * @src: the MonoString to copy.
1150 * @size: the maximum number of bytes to copy.
1152 * Copies the MonoString pointed to by @src as a utf8 string
1153 * into @dst, it copies at most @size bytes into the destination.
1156 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1161 g_assert (dst != NULL);
1162 g_assert (size > 0);
1164 memset (dst, 0, size);
1168 s = mono_string_to_utf8 (src);
1169 len = MIN (size, strlen (s));
1172 memcpy (dst, s, len);
1177 * mono_string_to_byvalwstr:
1178 * @dst: Where to store the null-terminated utf16 decoded string.
1179 * @src: the MonoString to copy.
1180 * @size: the maximum number of bytes to copy.
1182 * Copies the MonoString pointed to by @src as a utf16 string into
1183 * @dst, it copies at most @size bytes into the destination (including
1184 * a terminating 16-bit zero terminator).
1187 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1191 g_assert (dst != NULL);
1192 g_assert (size > 1);
1195 memset (dst, 0, size * 2);
1199 len = MIN (size, (mono_string_length (src)));
1200 memcpy (dst, mono_string_chars (src), size * 2);
1201 if (size <= mono_string_length (src))
1203 *((gunichar2 *) dst + len) = 0;
1207 mono_mb_free (MonoMethodBuilder *mb)
1209 g_list_free (mb->locals_list);
1211 g_free (mb->method);
1219 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
1221 MonoMethodBuilder *mb;
1224 g_assert (klass != NULL);
1225 g_assert (name != NULL);
1227 mb = g_new0 (MonoMethodBuilder, 1);
1229 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
1233 m->wrapper_type = type;
1235 mb->name = g_strdup (name);
1237 mb->code = g_malloc (mb->code_size);
1243 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
1247 g_assert (mb != NULL);
1248 g_assert (type != NULL);
1251 mb->locals_list = g_list_append (mb->locals_list, type);
1258 * mono_mb_create_method:
1260 * Create a MonoMethod from this method builder.
1261 * Returns: the newly created method.
1263 * LOCKING: Takes the loader lock.
1266 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
1268 MonoMethodHeader *header;
1269 MonoMethodWrapper *mw;
1275 g_assert (mb != NULL);
1277 mp = mb->method->klass->image->mempool;
1279 mono_loader_lock ();
1281 method = mb->method;
1283 method->name = mb->name;
1284 method->dynamic = TRUE;
1286 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
1287 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
1289 header->code = mb->code;
1291 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
1292 header->locals [i] = mono_metadata_type_dup (NULL, (MonoType*)l->data);
1295 /* Realloc the method info into a mempool */
1297 method = mono_mempool_alloc (mp, sizeof (MonoMethodWrapper));
1298 memcpy (method, mb->method, sizeof (MonoMethodWrapper));
1300 method->name = mono_mempool_strdup (mp, mb->name);
1302 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
1303 mono_mempool_alloc0 (mp, sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
1305 header->code = mono_mempool_alloc (mp, mb->pos);
1306 memcpy ((char*)header->code, mb->code, mb->pos);
1308 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
1309 header->locals [i] = (MonoType *)l->data;
1316 header->max_stack = max_stack;
1318 method->signature = signature;
1320 header->code_size = mb->pos;
1321 header->num_locals = mb->locals;
1322 header->init_locals = TRUE;
1324 mw = (MonoMethodWrapper*) mb->method;
1325 i = g_list_length (mw->method_data);
1329 l = g_list_reverse (mw->method_data);
1330 if (method->dynamic)
1331 data = g_malloc (sizeof (gpointer) * (i + 1));
1333 data = mono_mempool_alloc (mp, sizeof (gpointer) * (i + 1));
1334 /* store the size in the first element */
1335 data [0] = GUINT_TO_POINTER (i);
1337 for (tmp = l; tmp; tmp = tmp->next) {
1338 data [i++] = tmp->data;
1342 ((MonoMethodWrapper*)method)->method_data = data;
1345 static int total_code = 0;
1346 static int total_alloc = 0;
1347 total_code += mb->pos;
1348 total_alloc += mb->code_size;
1349 g_print ("code size: %d of %d (allocated: %d)\n", mb->pos, total_code, total_alloc);
1352 #ifdef DEBUG_RUNTIME_CODE
1353 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (method, TRUE));
1354 printf ("%s\n", mono_disasm_code (&marshal_dh, method, mb->code, mb->code + mb->pos));
1357 mono_loader_unlock ();
1362 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
1364 MonoMethodWrapper *mw;
1366 g_assert (mb != NULL);
1368 mw = (MonoMethodWrapper *)mb->method;
1370 /* one O(n) is enough */
1371 mw->method_data = g_list_prepend (mw->method_data, data);
1373 return g_list_length (mw->method_data);
1377 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
1379 mb->code [pos] = value & 0xff;
1380 mb->code [pos + 1] = (value >> 8) & 0xff;
1381 mb->code [pos + 2] = (value >> 16) & 0xff;
1382 mb->code [pos + 3] = (value >> 24) & 0xff;
1386 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
1388 *((gint8 *)(&mb->code [pos])) = value;
1392 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
1394 if (mb->pos >= mb->code_size) {
1395 mb->code_size += mb->code_size >> 1;
1396 mb->code = g_realloc (mb->code, mb->code_size);
1399 mb->code [mb->pos++] = op;
1403 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
1405 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1406 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1409 mono_mb_emit_icon (mb, offset);
1410 mono_mb_emit_byte (mb, CEE_ADD);
1415 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1418 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1419 mono_mb_emit_byte (mb, CEE_LDIND_I);
1420 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1421 mono_mb_emit_byte (mb, CEE_ADD);
1422 mono_mb_emit_byte (mb, CEE_LDIND_I);
1423 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1424 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1425 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1426 mono_mb_emit_byte (mb, branch_code);
1428 mono_mb_emit_i4 (mb, 0);
1433 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1436 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1437 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1438 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1439 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1440 mono_mb_emit_icon (mb, -1);
1441 mono_mb_emit_byte (mb, branch_code);
1443 mono_mb_emit_i4 (mb, 0);
1448 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
1450 if ((mb->pos + 4) >= mb->code_size) {
1451 mb->code_size += mb->code_size >> 1;
1452 mb->code = g_realloc (mb->code, mb->code_size);
1455 mono_mb_patch_addr (mb, mb->pos, data);
1460 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
1462 if ((mb->pos + 2) >= mb->code_size) {
1463 mb->code_size += mb->code_size >> 1;
1464 mb->code = g_realloc (mb->code, mb->code_size);
1467 mb->code [mb->pos] = data & 0xff;
1468 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
1473 mono_mb_emit_op (MonoMethodBuilder *mb, guint8 op, gpointer data)
1475 mono_mb_emit_byte (mb, op);
1476 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, data));
1480 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
1482 mono_mb_emit_op (mb, CEE_LDSTR, str);
1486 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
1489 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
1490 } else if (argnum < 256) {
1491 mono_mb_emit_byte (mb, CEE_LDARG_S);
1492 mono_mb_emit_byte (mb, argnum);
1494 mono_mb_emit_byte (mb, CEE_PREFIX1);
1495 mono_mb_emit_byte (mb, CEE_LDARG);
1496 mono_mb_emit_i2 (mb, argnum);
1501 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
1504 mono_mb_emit_byte (mb, CEE_LDARGA_S);
1505 mono_mb_emit_byte (mb, argnum);
1507 mono_mb_emit_byte (mb, CEE_PREFIX1);
1508 mono_mb_emit_byte (mb, CEE_LDARGA);
1509 mono_mb_emit_i2 (mb, argnum);
1514 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
1517 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
1518 mono_mb_emit_byte (mb, locnum);
1520 mono_mb_emit_byte (mb, CEE_PREFIX1);
1521 mono_mb_emit_byte (mb, CEE_LDLOCA);
1522 mono_mb_emit_i2 (mb, locnum);
1527 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
1530 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
1531 } else if (num < 256) {
1532 mono_mb_emit_byte (mb, CEE_LDLOC_S);
1533 mono_mb_emit_byte (mb, num);
1535 mono_mb_emit_byte (mb, CEE_PREFIX1);
1536 mono_mb_emit_byte (mb, CEE_LDLOC);
1537 mono_mb_emit_i2 (mb, num);
1542 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
1545 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
1546 } else if (num < 256) {
1547 mono_mb_emit_byte (mb, CEE_STLOC_S);
1548 mono_mb_emit_byte (mb, num);
1550 mono_mb_emit_byte (mb, CEE_PREFIX1);
1551 mono_mb_emit_byte (mb, CEE_STLOC);
1552 mono_mb_emit_i2 (mb, num);
1557 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
1559 if (value >= -1 && value < 8) {
1560 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
1561 } else if (value >= -128 && value <= 127) {
1562 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
1563 mono_mb_emit_byte (mb, value);
1565 mono_mb_emit_byte (mb, CEE_LDC_I4);
1566 mono_mb_emit_i4 (mb, value);
1571 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
1574 mono_mb_emit_byte (mb, op);
1576 mono_mb_emit_i4 (mb, 0);
1581 mono_mb_emit_short_branch (MonoMethodBuilder *mb, guint8 op)
1584 mono_mb_emit_byte (mb, op);
1586 mono_mb_emit_byte (mb, 0);
1592 mono_mb_patch_branch (MonoMethodBuilder *mb, guint32 pos)
1594 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1598 mono_mb_patch_short_branch (MonoMethodBuilder *mb, guint32 pos)
1600 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
1604 mono_mb_emit_ptr (MonoMethodBuilder *mb, gpointer ptr)
1606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1607 mono_mb_emit_op (mb, CEE_MONO_LDPTR, ptr);
1611 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
1613 mono_mb_emit_op (mb, CEE_CALLI, sig);
1617 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
1619 mono_mb_emit_op (mb, CEE_CALL, method);
1623 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
1625 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1626 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1627 mono_mb_emit_ptr (mb, func);
1628 mono_mb_emit_calli (mb, sig);
1629 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1630 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1634 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
1636 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1637 mono_mb_emit_op (mb, CEE_MONO_ICALL, func);
1641 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1643 // get function pointer from 1st arg, the COM interface pointer
1644 mono_mb_emit_ldarg (mb, 0);
1645 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1646 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1648 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1649 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1650 mono_mb_emit_calli (mb, sig);
1651 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1652 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1656 mono_mb_emit_exception_full (MonoMethodBuilder *mb, const char *exc_nspace, const char *exc_name, const char *msg)
1658 MonoMethod *ctor = NULL;
1660 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, exc_nspace, exc_name);
1661 mono_class_init (mme);
1662 ctor = mono_class_get_method_from_name (mme, ".ctor", 0);
1664 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
1666 mono_mb_emit_byte (mb, CEE_DUP);
1667 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
1668 mono_mb_emit_ldstr (mb, (char*)msg);
1669 mono_mb_emit_byte (mb, CEE_STIND_REF);
1671 mono_mb_emit_byte (mb, CEE_THROW);
1675 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
1677 mono_mb_emit_exception_full (mb, "System", exc_name, msg);
1681 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1683 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1687 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
1689 mono_mb_emit_ldloc (mb, local);
1690 mono_mb_emit_icon (mb, incr);
1691 mono_mb_emit_byte (mb, CEE_ADD);
1692 mono_mb_emit_stloc (mb, local);
1696 mono_type_to_ldind (MonoType *type)
1702 switch (type->type) {
1704 return CEE_LDIND_I1;
1706 case MONO_TYPE_BOOLEAN:
1707 return CEE_LDIND_U1;
1709 return CEE_LDIND_I2;
1711 case MONO_TYPE_CHAR:
1712 return CEE_LDIND_U2;
1714 return CEE_LDIND_I4;
1716 return CEE_LDIND_U4;
1720 case MONO_TYPE_FNPTR:
1722 case MONO_TYPE_CLASS:
1723 case MONO_TYPE_STRING:
1724 case MONO_TYPE_OBJECT:
1725 case MONO_TYPE_SZARRAY:
1726 case MONO_TYPE_ARRAY:
1727 return CEE_LDIND_REF;
1730 return CEE_LDIND_I8;
1732 return CEE_LDIND_R4;
1734 return CEE_LDIND_R8;
1735 case MONO_TYPE_VALUETYPE:
1736 if (type->data.klass->enumtype) {
1737 type = type->data.klass->enum_basetype;
1741 case MONO_TYPE_TYPEDBYREF:
1743 case MONO_TYPE_GENERICINST:
1744 type = &type->data.generic_class->container_class->byval_arg;
1747 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1753 mono_type_to_stind (MonoType *type)
1759 switch (type->type) {
1762 case MONO_TYPE_BOOLEAN:
1763 return CEE_STIND_I1;
1766 case MONO_TYPE_CHAR:
1767 return CEE_STIND_I2;
1770 return CEE_STIND_I4;
1774 case MONO_TYPE_FNPTR:
1776 case MONO_TYPE_CLASS:
1777 case MONO_TYPE_STRING:
1778 case MONO_TYPE_OBJECT:
1779 case MONO_TYPE_SZARRAY:
1780 case MONO_TYPE_ARRAY:
1781 return CEE_STIND_REF;
1784 return CEE_STIND_I8;
1786 return CEE_STIND_R4;
1788 return CEE_STIND_R8;
1789 case MONO_TYPE_VALUETYPE:
1790 if (type->data.klass->enumtype) {
1791 type = type->data.klass->enum_basetype;
1795 case MONO_TYPE_TYPEDBYREF:
1797 case MONO_TYPE_GENERICINST:
1798 type = &type->data.generic_class->container_class->byval_arg;
1801 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1807 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1810 case MONO_MARSHAL_CONV_BOOL_I4:
1811 mono_mb_emit_ldloc (mb, 1);
1812 mono_mb_emit_ldloc (mb, 0);
1813 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1814 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1815 mono_mb_emit_byte (mb, 3);
1816 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1817 mono_mb_emit_byte (mb, CEE_BR_S);
1818 mono_mb_emit_byte (mb, 1);
1819 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1820 mono_mb_emit_byte (mb, CEE_STIND_I1);
1822 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1823 mono_mb_emit_ldloc (mb, 1);
1824 mono_mb_emit_ldloc (mb, 0);
1825 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1826 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1827 mono_mb_emit_byte (mb, 3);
1828 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1829 mono_mb_emit_byte (mb, CEE_BR_S);
1830 mono_mb_emit_byte (mb, 1);
1831 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1832 mono_mb_emit_byte (mb, CEE_STIND_I1);
1834 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1835 MonoClass *eklass = NULL;
1838 if (type->type == MONO_TYPE_SZARRAY) {
1839 eklass = type->data.klass;
1841 g_assert_not_reached ();
1844 esize = mono_class_native_size (eklass, NULL);
1846 /* create a new array */
1847 mono_mb_emit_ldloc (mb, 1);
1848 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1849 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1850 mono_mb_emit_byte (mb, CEE_STIND_I);
1852 if (eklass->blittable) {
1853 /* copy the elements */
1854 mono_mb_emit_ldloc (mb, 1);
1855 mono_mb_emit_byte (mb, CEE_LDIND_I);
1856 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1857 mono_mb_emit_byte (mb, CEE_ADD);
1858 mono_mb_emit_ldloc (mb, 0);
1859 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1860 mono_mb_emit_byte (mb, CEE_PREFIX1);
1861 mono_mb_emit_byte (mb, CEE_CPBLK);
1864 int array_var, src_var, dst_var, index_var;
1865 guint32 label2, label3;
1867 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1868 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1869 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1872 mono_mb_emit_ldloc (mb, 1);
1873 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1874 mono_mb_emit_stloc (mb, array_var);
1876 /* save the old src pointer */
1877 mono_mb_emit_ldloc (mb, 0);
1878 mono_mb_emit_stloc (mb, src_var);
1879 /* save the old dst pointer */
1880 mono_mb_emit_ldloc (mb, 1);
1881 mono_mb_emit_stloc (mb, dst_var);
1883 /* Emit marshalling loop */
1884 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1885 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1886 mono_mb_emit_stloc (mb, index_var);
1890 mono_mb_emit_ldloc (mb, index_var);
1891 mono_mb_emit_ldloc (mb, array_var);
1892 mono_mb_emit_byte (mb, CEE_LDLEN);
1893 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1895 /* src is already set */
1898 mono_mb_emit_ldloc (mb, array_var);
1899 mono_mb_emit_ldloc (mb, index_var);
1900 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1901 mono_mb_emit_stloc (mb, 1);
1903 /* Do the conversion */
1904 emit_struct_conv (mb, eklass, TRUE);
1907 mono_mb_emit_add_to_local (mb, index_var, 1);
1909 mono_mb_emit_byte (mb, CEE_BR);
1910 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
1912 mono_mb_patch_branch (mb, label3);
1914 /* restore the old src pointer */
1915 mono_mb_emit_ldloc (mb, src_var);
1916 mono_mb_emit_stloc (mb, 0);
1917 /* restore the old dst pointer */
1918 mono_mb_emit_ldloc (mb, dst_var);
1919 mono_mb_emit_stloc (mb, 1);
1923 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1924 MonoClass *eclass = mono_defaults.char_class;
1926 /* create a new array */
1927 mono_mb_emit_ldloc (mb, 1);
1928 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1929 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1930 mono_mb_emit_byte (mb, CEE_STIND_REF);
1932 mono_mb_emit_ldloc (mb, 1);
1933 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1936 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1937 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1940 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1941 mono_mb_emit_ldloc (mb, 1);
1942 mono_mb_emit_ldloc (mb, 0);
1943 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1944 mono_mb_emit_byte (mb, CEE_STIND_REF);
1946 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1947 mono_mb_emit_ldloc (mb, 1);
1948 mono_mb_emit_ldloc (mb, 0);
1949 mono_mb_emit_icall (mb, mono_string_from_utf16);
1950 mono_mb_emit_byte (mb, CEE_STIND_REF);
1952 case MONO_MARSHAL_CONV_STR_LPTSTR:
1953 mono_mb_emit_ldloc (mb, 1);
1954 mono_mb_emit_ldloc (mb, 0);
1955 mono_mb_emit_byte (mb, CEE_LDIND_I);
1956 #ifdef PLATFORM_WIN32
1957 mono_mb_emit_icall (mb, mono_string_from_utf16);
1959 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1961 mono_mb_emit_byte (mb, CEE_STIND_REF);
1963 case MONO_MARSHAL_CONV_STR_LPSTR:
1964 mono_mb_emit_ldloc (mb, 1);
1965 mono_mb_emit_ldloc (mb, 0);
1966 mono_mb_emit_byte (mb, CEE_LDIND_I);
1967 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1968 mono_mb_emit_byte (mb, CEE_STIND_REF);
1970 case MONO_MARSHAL_CONV_STR_LPWSTR:
1971 mono_mb_emit_ldloc (mb, 1);
1972 mono_mb_emit_ldloc (mb, 0);
1973 mono_mb_emit_byte (mb, CEE_LDIND_I);
1974 mono_mb_emit_icall (mb, mono_string_from_utf16);
1975 mono_mb_emit_byte (mb, CEE_STIND_REF);
1977 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1978 MonoClass *klass = mono_class_from_mono_type (type);
1979 int src_var, dst_var;
1981 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1982 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1984 /* *dst = new object */
1985 mono_mb_emit_ldloc (mb, 1);
1986 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1987 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1988 mono_mb_emit_byte (mb, CEE_STIND_REF);
1990 /* save the old src pointer */
1991 mono_mb_emit_ldloc (mb, 0);
1992 mono_mb_emit_stloc (mb, src_var);
1993 /* save the old dst pointer */
1994 mono_mb_emit_ldloc (mb, 1);
1995 mono_mb_emit_stloc (mb, dst_var);
1997 /* dst = pointer to newly created object data */
1998 mono_mb_emit_ldloc (mb, 1);
1999 mono_mb_emit_byte (mb, CEE_LDIND_I);
2000 mono_mb_emit_icon (mb, sizeof (MonoObject));
2001 mono_mb_emit_byte (mb, CEE_ADD);
2002 mono_mb_emit_stloc (mb, 1);
2004 emit_struct_conv (mb, klass, TRUE);
2006 /* restore the old src pointer */
2007 mono_mb_emit_ldloc (mb, src_var);
2008 mono_mb_emit_stloc (mb, 0);
2009 /* restore the old dst pointer */
2010 mono_mb_emit_ldloc (mb, dst_var);
2011 mono_mb_emit_stloc (mb, 1);
2014 case MONO_MARSHAL_CONV_DEL_FTN: {
2015 MonoClass *klass = mono_class_from_mono_type (type);
2017 mono_mb_emit_ldloc (mb, 1);
2018 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2019 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2020 mono_mb_emit_ldloc (mb, 0);
2021 mono_mb_emit_byte (mb, CEE_LDIND_I);
2022 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
2023 mono_mb_emit_byte (mb, CEE_STIND_REF);
2026 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
2027 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
2029 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2030 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
2031 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
2032 static MonoClass* com_interop_proxy_class = NULL;
2033 static MonoMethod* com_interop_proxy_get_proxy = NULL;
2034 static MonoMethod* get_transparent_proxy = NULL;
2036 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
2037 MonoClass *klass = NULL;
2039 /* COM types are initialized lazily */
2040 mono_init_com_types ();
2042 klass = mono_class_from_mono_type (type);
2044 mono_mb_emit_ldloc (mb, 1);
2045 mono_mb_emit_byte (mb, CEE_LDNULL);
2046 mono_mb_emit_byte (mb, CEE_STIND_REF);
2048 mono_mb_emit_ldloc (mb, 0);
2049 mono_mb_emit_byte (mb, CEE_LDIND_I);
2050 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2052 /* load dst to store later */
2053 mono_mb_emit_ldloc (mb, 1);
2055 mono_mb_emit_ldloc (mb, 0);
2056 mono_mb_emit_byte (mb, CEE_LDIND_I);
2057 mono_mb_emit_icon (mb, TRUE);
2058 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2059 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
2061 if (!com_interop_proxy_class)
2062 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
2063 if (!com_interop_proxy_get_proxy)
2064 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
2065 if (!get_transparent_proxy)
2066 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
2068 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
2070 mono_mb_emit_ldloc (mb, 0);
2071 mono_mb_emit_byte (mb, CEE_LDIND_I);
2072 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
2073 mono_mb_emit_icall (mb, type_from_handle);
2074 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
2075 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
2076 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2078 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
2080 mono_mb_emit_byte (mb, CEE_STIND_REF);
2081 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2083 /* is already managed object */
2084 mono_mb_patch_short_branch (mb, pos_ccw);
2085 mono_mb_emit_ldloc (mb, 0);
2086 mono_mb_emit_byte (mb, CEE_LDIND_I);
2087 mono_mb_emit_icon (mb, TRUE);
2088 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2090 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2092 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
2094 mono_mb_emit_byte (mb, CEE_STIND_REF);
2096 mono_mb_patch_short_branch (mb, pos_end);
2098 mono_mb_patch_short_branch (mb, pos_null);
2102 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2104 * Passing SafeHandles as ref does not allow the unmanaged code
2105 * to change the SafeHandle value. If the value is changed,
2106 * we should issue a diagnostic exception (NotSupportedException)
2107 * that informs the user that changes to handles in unmanaged code
2110 * Since we currently have no access to the original
2111 * SafeHandle that was used during the marshalling,
2112 * for now we just ignore this, and ignore/discard any
2113 * changes that might have happened to the handle.
2118 case MONO_MARSHAL_CONV_HANDLEREF: {
2120 * Passing HandleRefs in a struct that is ref()ed does not
2121 * copy the values back to the HandleRef
2126 case MONO_MARSHAL_CONV_STR_BSTR:
2127 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
2128 case MONO_MARSHAL_CONV_STR_TBSTR:
2129 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
2131 g_warning ("marshaling conversion %d not implemented", conv);
2132 g_assert_not_reached ();
2137 conv_to_icall (MonoMarshalConv conv)
2140 case MONO_MARSHAL_CONV_STR_LPWSTR:
2141 return mono_marshal_string_to_utf16;
2142 case MONO_MARSHAL_CONV_LPWSTR_STR:
2143 return mono_string_from_utf16;
2144 case MONO_MARSHAL_CONV_LPSTR_STR:
2145 return mono_string_new_wrapper;
2146 case MONO_MARSHAL_CONV_STR_LPTSTR:
2147 #ifdef PLATFORM_WIN32
2148 return mono_marshal_string_to_utf16;
2150 return mono_string_to_lpstr;
2152 case MONO_MARSHAL_CONV_STR_LPSTR:
2153 return mono_string_to_lpstr;
2154 case MONO_MARSHAL_CONV_STR_BSTR:
2155 return mono_string_to_bstr;
2156 case MONO_MARSHAL_CONV_BSTR_STR:
2157 return mono_string_from_bstr;
2158 case MONO_MARSHAL_CONV_STR_TBSTR:
2159 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
2160 return mono_string_to_ansibstr;
2161 case MONO_MARSHAL_CONV_SB_LPSTR:
2162 return mono_string_builder_to_utf8;
2163 case MONO_MARSHAL_CONV_SB_LPTSTR:
2164 #ifdef PLATFORM_WIN32
2165 return mono_string_builder_to_utf16;
2167 return mono_string_builder_to_utf8;
2169 case MONO_MARSHAL_CONV_SB_LPWSTR:
2170 return mono_string_builder_to_utf16;
2171 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
2172 return mono_array_to_savearray;
2173 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
2174 return mono_array_to_lparray;
2175 case MONO_MARSHAL_CONV_DEL_FTN:
2176 return mono_delegate_to_ftnptr;
2177 case MONO_MARSHAL_CONV_FTN_DEL:
2178 return mono_ftnptr_to_delegate;
2179 case MONO_MARSHAL_CONV_LPSTR_SB:
2180 return mono_string_utf8_to_builder;
2181 case MONO_MARSHAL_CONV_LPTSTR_SB:
2182 #ifdef PLATFORM_WIN32
2183 return mono_string_utf16_to_builder;
2185 return mono_string_utf8_to_builder;
2187 case MONO_MARSHAL_CONV_LPWSTR_SB:
2188 return mono_string_utf16_to_builder;
2189 case MONO_MARSHAL_FREE_ARRAY:
2190 return mono_marshal_free_array;
2191 case MONO_MARSHAL_CONV_STR_BYVALSTR:
2192 return mono_string_to_byvalstr;
2193 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
2194 return mono_string_to_byvalwstr;
2196 g_assert_not_reached ();
2203 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
2208 case MONO_MARSHAL_CONV_BOOL_I4:
2209 mono_mb_emit_ldloc (mb, 1);
2210 mono_mb_emit_ldloc (mb, 0);
2211 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2212 mono_mb_emit_byte (mb, CEE_STIND_I4);
2214 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
2215 mono_mb_emit_ldloc (mb, 1);
2216 mono_mb_emit_ldloc (mb, 0);
2217 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2218 mono_mb_emit_byte (mb, CEE_NEG);
2219 mono_mb_emit_byte (mb, CEE_STIND_I2);
2221 case MONO_MARSHAL_CONV_STR_LPWSTR:
2222 case MONO_MARSHAL_CONV_STR_LPSTR:
2223 case MONO_MARSHAL_CONV_STR_LPTSTR:
2224 case MONO_MARSHAL_CONV_STR_BSTR:
2225 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
2226 case MONO_MARSHAL_CONV_STR_TBSTR: {
2229 /* free space if free == true */
2230 mono_mb_emit_ldloc (mb, 2);
2231 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2232 mono_mb_emit_ldloc (mb, 1);
2233 mono_mb_emit_byte (mb, CEE_LDIND_I);
2234 mono_mb_emit_icall (mb, g_free);
2235 mono_mb_patch_short_branch (mb, pos);
2237 mono_mb_emit_ldloc (mb, 1);
2238 mono_mb_emit_ldloc (mb, 0);
2239 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2240 mono_mb_emit_icall (mb, conv_to_icall (conv));
2241 mono_mb_emit_byte (mb, CEE_STIND_I);
2244 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
2245 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
2246 case MONO_MARSHAL_CONV_DEL_FTN:
2247 mono_mb_emit_ldloc (mb, 1);
2248 mono_mb_emit_ldloc (mb, 0);
2249 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2250 mono_mb_emit_icall (mb, conv_to_icall (conv));
2251 mono_mb_emit_byte (mb, CEE_STIND_I);
2253 case MONO_MARSHAL_CONV_STR_BYVALSTR:
2254 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
2257 mono_mb_emit_ldloc (mb, 1); /* dst */
2258 mono_mb_emit_ldloc (mb, 0);
2259 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
2260 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2261 mono_mb_emit_icall (mb, conv_to_icall (conv));
2264 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
2265 MonoClass *eklass = NULL;
2268 if (type->type == MONO_TYPE_SZARRAY) {
2269 eklass = type->data.klass;
2271 g_assert_not_reached ();
2274 if (eklass->valuetype)
2275 esize = mono_class_native_size (eklass, NULL);
2277 esize = sizeof (gpointer);
2279 mono_mb_emit_ldloc (mb, 0);
2280 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2281 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2283 if (eklass->blittable) {
2284 mono_mb_emit_ldloc (mb, 1);
2285 mono_mb_emit_ldloc (mb, 0);
2286 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2287 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
2288 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
2289 mono_mb_emit_byte (mb, CEE_PREFIX1);
2290 mono_mb_emit_byte (mb, CEE_CPBLK);
2292 int array_var, src_var, dst_var, index_var;
2293 guint32 label2, label3;
2295 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2296 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2297 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2300 mono_mb_emit_ldloc (mb, 0);
2301 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2302 mono_mb_emit_stloc (mb, array_var);
2304 /* save the old src pointer */
2305 mono_mb_emit_ldloc (mb, 0);
2306 mono_mb_emit_stloc (mb, src_var);
2307 /* save the old dst pointer */
2308 mono_mb_emit_ldloc (mb, 1);
2309 mono_mb_emit_stloc (mb, dst_var);
2311 /* Emit marshalling loop */
2312 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2313 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2314 mono_mb_emit_stloc (mb, index_var);
2318 mono_mb_emit_ldloc (mb, index_var);
2319 mono_mb_emit_ldloc (mb, array_var);
2320 mono_mb_emit_byte (mb, CEE_LDLEN);
2321 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2324 mono_mb_emit_ldloc (mb, array_var);
2325 mono_mb_emit_ldloc (mb, index_var);
2326 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
2327 mono_mb_emit_stloc (mb, 0);
2329 /* dst is already set */
2331 /* Do the conversion */
2332 emit_struct_conv (mb, eklass, FALSE);
2335 mono_mb_emit_add_to_local (mb, index_var, 1);
2337 mono_mb_emit_byte (mb, CEE_BR);
2338 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
2340 mono_mb_patch_branch (mb, label3);
2342 /* restore the old src pointer */
2343 mono_mb_emit_ldloc (mb, src_var);
2344 mono_mb_emit_stloc (mb, 0);
2345 /* restore the old dst pointer */
2346 mono_mb_emit_ldloc (mb, dst_var);
2347 mono_mb_emit_stloc (mb, 1);
2350 mono_mb_patch_branch (mb, pos);
2353 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
2354 mono_mb_emit_ldloc (mb, 0);
2355 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2356 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2358 mono_mb_emit_ldloc (mb, 1);
2359 mono_mb_emit_ldloc (mb, 0);
2360 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2361 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
2362 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
2363 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
2364 mono_mb_patch_short_branch (mb, pos);
2367 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
2368 int src_var, dst_var;
2370 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2371 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2373 mono_mb_emit_ldloc (mb, 0);
2374 mono_mb_emit_byte (mb, CEE_LDIND_I);
2375 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
2377 /* save the old src pointer */
2378 mono_mb_emit_ldloc (mb, 0);
2379 mono_mb_emit_stloc (mb, src_var);
2380 /* save the old dst pointer */
2381 mono_mb_emit_ldloc (mb, 1);
2382 mono_mb_emit_stloc (mb, dst_var);
2384 /* src = pointer to object data */
2385 mono_mb_emit_ldloc (mb, 0);
2386 mono_mb_emit_byte (mb, CEE_LDIND_I);
2387 mono_mb_emit_icon (mb, sizeof (MonoObject));
2388 mono_mb_emit_byte (mb, CEE_ADD);
2389 mono_mb_emit_stloc (mb, 0);
2391 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
2393 /* restore the old src pointer */
2394 mono_mb_emit_ldloc (mb, src_var);
2395 mono_mb_emit_stloc (mb, 0);
2396 /* restore the old dst pointer */
2397 mono_mb_emit_ldloc (mb, dst_var);
2398 mono_mb_emit_stloc (mb, 1);
2400 mono_mb_patch_branch (mb, pos);
2403 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
2404 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
2405 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
2406 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
2408 /* COM types are initialized lazily */
2409 mono_init_com_types ();
2412 mono_mb_emit_ldloc (mb, 1);
2413 mono_mb_emit_icon (mb, 0);
2414 mono_mb_emit_byte (mb, CEE_CONV_U);
2415 mono_mb_emit_byte (mb, CEE_STIND_I);
2417 mono_mb_emit_ldloc (mb, 0);
2418 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2420 // if null just break, dst was already inited to 0
2421 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2423 mono_mb_emit_ldloc (mb, 0);
2424 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2425 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
2426 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2428 // load dst to store later
2429 mono_mb_emit_ldloc (mb, 1);
2432 mono_mb_emit_ldloc (mb, 0);
2433 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2434 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2435 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2437 /* load the RCW from the ComInteropProxy*/
2438 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
2439 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2441 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
2442 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2443 mono_mb_emit_icon (mb, TRUE);
2444 mono_mb_emit_icall (mb, cominterop_get_interface);
2447 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
2448 static MonoProperty* iunknown = NULL;
2451 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
2452 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
2454 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
2455 static MonoProperty* idispatch = NULL;
2458 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
2459 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
2462 g_assert_not_reached ();
2464 mono_mb_emit_byte (mb, CEE_STIND_I);
2465 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2468 mono_mb_patch_short_branch (mb, pos_rcw);
2469 /* load dst to store later */
2470 mono_mb_emit_ldloc (mb, 1);
2472 mono_mb_emit_ldloc (mb, 0);
2473 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2475 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2476 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2477 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2478 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2479 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2480 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2482 g_assert_not_reached ();
2483 mono_mb_emit_icall (mb, cominterop_get_ccw);
2484 mono_mb_emit_byte (mb, CEE_STIND_I);
2486 mono_mb_patch_short_branch (mb, pos_end);
2487 mono_mb_patch_short_branch (mb, pos_null);
2491 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2492 int dar_release_slot, pos;
2494 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2497 * The following is ifdefed-out, because I have no way of doing the
2498 * DangerousRelease when destroying the structure
2501 /* set release = false */
2502 mono_mb_emit_icon (mb, 0);
2503 mono_mb_emit_stloc (mb, dar_release_slot);
2504 if (!sh_dangerous_add_ref)
2505 init_safe_handle ();
2507 /* safehandle.DangerousAddRef (ref release) */
2508 mono_mb_emit_ldloc (mb, 0); /* the source */
2509 mono_mb_emit_byte (mb, CEE_LDIND_I);
2510 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2511 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2513 mono_mb_emit_ldloc (mb, 0);
2514 mono_mb_emit_byte (mb, CEE_LDIND_I);
2515 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2516 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2517 mono_mb_patch_branch (mb, pos);
2519 /* Pull the handle field from SafeHandle */
2520 mono_mb_emit_ldloc (mb, 1);
2521 mono_mb_emit_ldloc (mb, 0);
2522 mono_mb_emit_byte (mb, CEE_LDIND_I);
2523 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2524 mono_mb_emit_byte (mb, CEE_LDIND_I);
2525 mono_mb_emit_byte (mb, CEE_STIND_I);
2529 case MONO_MARSHAL_CONV_HANDLEREF: {
2530 mono_mb_emit_ldloc (mb, 1);
2531 mono_mb_emit_ldloc (mb, 0);
2532 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2533 mono_mb_emit_byte (mb, CEE_ADD);
2534 mono_mb_emit_byte (mb, CEE_LDIND_I);
2535 mono_mb_emit_byte (mb, CEE_STIND_I);
2540 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2541 MonoException *exc = mono_get_exception_not_implemented (msg);
2544 mono_raise_exception (exc);
2550 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2552 MonoMarshalType *info;
2556 emit_struct_conv(mb, klass->parent, to_object);
2558 info = mono_marshal_load_type_info (klass);
2560 if (info->native_size == 0)
2563 if (klass->blittable) {
2564 int msize = mono_class_value_size (klass, NULL);
2565 g_assert (msize == info->native_size);
2566 mono_mb_emit_ldloc (mb, 1);
2567 mono_mb_emit_ldloc (mb, 0);
2568 mono_mb_emit_icon (mb, msize);
2569 mono_mb_emit_byte (mb, CEE_PREFIX1);
2570 mono_mb_emit_byte (mb, CEE_CPBLK);
2572 mono_mb_emit_add_to_local (mb, 0, msize);
2573 mono_mb_emit_add_to_local (mb, 1, msize);
2577 for (i = 0; i < info->num_fields; i++) {
2578 MonoMarshalNative ntype;
2579 MonoMarshalConv conv;
2580 MonoType *ftype = info->fields [i].field->type;
2583 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2585 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2588 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2591 msize = klass->instance_size - info->fields [i].field->offset;
2592 usize = info->native_size - info->fields [i].offset;
2594 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2595 usize = info->fields [i + 1].offset - info->fields [i].offset;
2598 if (klass != mono_defaults.safehandle_class){
2600 * FIXME: Should really check for usize==0 and msize>0, but we apply
2601 * the layout to the managed structure as well.
2604 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2605 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2606 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2607 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2608 "reference field at the same offset as another field.",
2609 mono_type_full_name (&klass->byval_arg));
2612 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2613 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2614 mono_type_full_name (&klass->byval_arg));
2619 case MONO_MARSHAL_CONV_NONE: {
2622 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2623 ftype->type == MONO_TYPE_U) {
2624 mono_mb_emit_ldloc (mb, 1);
2625 mono_mb_emit_ldloc (mb, 0);
2626 mono_mb_emit_byte (mb, CEE_LDIND_I);
2627 mono_mb_emit_byte (mb, CEE_STIND_I);
2638 case MONO_TYPE_BOOLEAN:
2641 case MONO_TYPE_CHAR:
2647 mono_mb_emit_ldloc (mb, 1);
2648 mono_mb_emit_ldloc (mb, 0);
2649 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2650 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2652 case MONO_TYPE_VALUETYPE: {
2653 int src_var, dst_var;
2655 if (ftype->data.klass->enumtype) {
2656 ftype = ftype->data.klass->enum_basetype;
2660 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2661 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2663 /* save the old src pointer */
2664 mono_mb_emit_ldloc (mb, 0);
2665 mono_mb_emit_stloc (mb, src_var);
2666 /* save the old dst pointer */
2667 mono_mb_emit_ldloc (mb, 1);
2668 mono_mb_emit_stloc (mb, dst_var);
2670 emit_struct_conv (mb, ftype->data.klass, to_object);
2672 /* restore the old src pointer */
2673 mono_mb_emit_ldloc (mb, src_var);
2674 mono_mb_emit_stloc (mb, 0);
2675 /* restore the old dst pointer */
2676 mono_mb_emit_ldloc (mb, dst_var);
2677 mono_mb_emit_stloc (mb, 1);
2680 case MONO_TYPE_OBJECT: {
2681 mono_init_com_types ();
2683 static MonoMethod *variant_clear = NULL;
2684 static MonoMethod *get_object_for_native_variant = NULL;
2687 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2688 if (!get_object_for_native_variant)
2689 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2690 mono_mb_emit_ldloc (mb, 1);
2691 mono_mb_emit_ldloc (mb, 0);
2692 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2693 mono_mb_emit_byte (mb, CEE_STIND_REF);
2695 mono_mb_emit_ldloc (mb, 0);
2696 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2699 static MonoMethod *get_native_variant_for_object = NULL;
2701 if (!get_native_variant_for_object)
2702 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2704 mono_mb_emit_ldloc (mb, 0);
2705 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2706 mono_mb_emit_ldloc (mb, 1);
2707 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2713 g_warning ("marshaling type %02x not implemented", ftype->type);
2714 g_assert_not_reached ();
2719 int src_var, dst_var;
2721 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2722 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2724 /* save the old src pointer */
2725 mono_mb_emit_ldloc (mb, 0);
2726 mono_mb_emit_stloc (mb, src_var);
2727 /* save the old dst pointer */
2728 mono_mb_emit_ldloc (mb, 1);
2729 mono_mb_emit_stloc (mb, dst_var);
2732 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2734 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2736 /* restore the old src pointer */
2737 mono_mb_emit_ldloc (mb, src_var);
2738 mono_mb_emit_stloc (mb, 0);
2739 /* restore the old dst pointer */
2740 mono_mb_emit_ldloc (mb, dst_var);
2741 mono_mb_emit_stloc (mb, 1);
2746 mono_mb_emit_add_to_local (mb, 0, usize);
2747 mono_mb_emit_add_to_local (mb, 1, msize);
2749 mono_mb_emit_add_to_local (mb, 0, msize);
2750 mono_mb_emit_add_to_local (mb, 1, usize);
2756 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2758 /* Call DestroyStructure */
2759 /* FIXME: Only do this if needed */
2760 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2761 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2762 mono_mb_emit_ldloc (mb, struct_var);
2763 mono_mb_emit_icall (mb, mono_struct_delete_old);
2767 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2771 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2772 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2773 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2775 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2776 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2778 mono_mb_emit_icall (mb, checkpoint_func);
2780 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
2784 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2786 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2789 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2793 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2795 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2798 static MonoAsyncResult *
2799 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2801 MonoMethodMessage *msg;
2802 MonoDelegate *async_callback;
2806 MonoMethod *method = NULL, *method2 = NULL;
2808 g_assert (delegate);
2810 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2812 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2813 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2815 /* If the target is a proxy, make a direct call. Is proxy's work
2816 // to make the call asynchronous.
2818 MonoAsyncResult *ares;
2820 MonoArray *out_args;
2822 method = delegate->method_info->method;
2824 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2825 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2826 g_assert(handle != NULL);
2827 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2828 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2829 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2830 MONO_OBJECT_SETREF (msg, async_result, ares);
2831 msg->call_type = CallType_BeginInvoke;
2833 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2838 klass = delegate->object.vtable->klass;
2840 method = mono_get_delegate_invoke (klass);
2841 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2844 g_assert (method != NULL);
2846 im = mono_get_delegate_invoke (method->klass);
2847 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2849 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2853 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2855 int i, params_var, tmp_var;
2857 /* allocate local (pointer) *params[] */
2858 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2859 /* allocate local (pointer) tmp */
2860 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2862 /* alloate space on stack to store an array of pointers to the arguments */
2863 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2864 mono_mb_emit_byte (mb, CEE_PREFIX1);
2865 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2866 mono_mb_emit_stloc (mb, params_var);
2869 mono_mb_emit_ldloc (mb, params_var);
2870 mono_mb_emit_stloc (mb, tmp_var);
2872 if (save_this && sig->hasthis) {
2873 mono_mb_emit_ldloc (mb, tmp_var);
2874 mono_mb_emit_ldarg_addr (mb, 0);
2875 mono_mb_emit_byte (mb, CEE_STIND_I);
2876 /* tmp = tmp + sizeof (gpointer) */
2877 if (sig->param_count)
2878 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2882 for (i = 0; i < sig->param_count; i++) {
2883 mono_mb_emit_ldloc (mb, tmp_var);
2884 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2885 mono_mb_emit_byte (mb, CEE_STIND_I);
2886 /* tmp = tmp + sizeof (gpointer) */
2887 if (i < (sig->param_count - 1))
2888 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2895 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2899 GString *res = g_string_new ("");
2902 g_string_append (res, prefix);
2903 g_string_append_c (res, '_');
2906 mono_type_get_desc (res, sig->ret, FALSE);
2908 for (i = 0; i < sig->param_count; ++i) {
2909 g_string_append_c (res, '_');
2910 mono_type_get_desc (res, sig->params [i], FALSE);
2913 g_string_free (res, FALSE);
2918 * mono_marshal_get_string_encoding:
2920 * Return the string encoding which should be used for a given parameter.
2922 static MonoMarshalNative
2923 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2925 /* First try the parameter marshal info */
2927 if (spec->native == MONO_NATIVE_LPARRAY) {
2928 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2929 return spec->data.array_data.elem_type;
2932 return spec->native;
2936 return MONO_NATIVE_LPSTR;
2938 /* Then try the method level marshal info */
2939 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2940 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2941 return MONO_NATIVE_LPSTR;
2942 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2943 return MONO_NATIVE_LPWSTR;
2944 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2945 #ifdef PLATFORM_WIN32
2946 return MONO_NATIVE_LPWSTR;
2948 return MONO_NATIVE_LPSTR;
2951 return MONO_NATIVE_LPSTR;
2955 static MonoMarshalConv
2956 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2958 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2961 case MONO_NATIVE_LPWSTR:
2962 return MONO_MARSHAL_CONV_STR_LPWSTR;
2963 case MONO_NATIVE_LPSTR:
2964 return MONO_MARSHAL_CONV_STR_LPSTR;
2965 case MONO_NATIVE_LPTSTR:
2966 return MONO_MARSHAL_CONV_STR_LPTSTR;
2967 case MONO_NATIVE_BSTR:
2968 return MONO_MARSHAL_CONV_STR_BSTR;
2974 static MonoMarshalConv
2975 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2977 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2980 case MONO_NATIVE_LPWSTR:
2981 return MONO_MARSHAL_CONV_SB_LPWSTR;
2983 case MONO_NATIVE_LPSTR:
2984 return MONO_MARSHAL_CONV_SB_LPSTR;
2986 case MONO_NATIVE_LPTSTR:
2987 return MONO_MARSHAL_CONV_SB_LPTSTR;
2994 static MonoMarshalConv
2995 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2997 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3002 case MONO_NATIVE_LPWSTR:
3003 return MONO_MARSHAL_CONV_LPWSTR_STR;
3004 case MONO_NATIVE_LPSTR:
3005 return MONO_MARSHAL_CONV_LPSTR_STR;
3006 case MONO_NATIVE_LPTSTR:
3007 return MONO_MARSHAL_CONV_LPTSTR_STR;
3008 case MONO_NATIVE_BSTR:
3009 return MONO_MARSHAL_CONV_BSTR_STR;
3015 static MonoMarshalConv
3016 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
3018 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3023 case MONO_NATIVE_LPWSTR:
3025 * mono_string_builder_to_utf16 does not allocate a
3026 * new buffer, so no need to free it.
3029 return MONO_MARSHAL_CONV_LPWSTR_SB;
3030 case MONO_NATIVE_LPSTR:
3031 return MONO_MARSHAL_CONV_LPSTR_SB;
3033 case MONO_NATIVE_LPTSTR:
3034 return MONO_MARSHAL_CONV_LPTSTR_SB;
3042 * Return whenever a field of a native structure or an array member needs to
3046 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
3048 MonoMarshalNative encoding;
3049 MonoMarshalConv conv;
3052 case MONO_TYPE_VALUETYPE:
3053 /* FIXME: Optimize this */
3055 case MONO_TYPE_OBJECT:
3056 case MONO_TYPE_CLASS:
3057 if (t->data.klass == mono_defaults.stringbuilder_class) {
3059 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
3063 case MONO_TYPE_STRING:
3064 encoding = mono_marshal_get_string_encoding (piinfo, spec);
3065 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
3071 static inline MonoMethod*
3072 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
3076 mono_marshal_lock ();
3077 res = g_hash_table_lookup (cache, key);
3078 mono_marshal_unlock ();
3082 /* Create the method from the builder and place it in the cache */
3083 static inline MonoMethod*
3084 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
3085 MonoMethodBuilder *mb, MonoMethodSignature *sig,
3090 mono_marshal_lock ();
3091 res = g_hash_table_lookup (cache, key);
3092 mono_marshal_unlock ();
3095 newm = mono_mb_create_method (mb, sig, max_stack);
3096 mono_marshal_lock ();
3097 res = g_hash_table_lookup (cache, key);
3100 g_hash_table_insert (cache, key, res);
3101 g_hash_table_insert (wrapper_hash, res, key);
3102 mono_marshal_unlock ();
3104 mono_marshal_unlock ();
3105 mono_free_method (newm);
3113 static inline MonoMethod*
3114 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
3116 MonoMethod *res = NULL;
3117 MonoRemotingMethods *wrps;
3119 mono_marshal_lock ();
3120 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
3123 switch (wrapper_type) {
3124 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
3125 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
3126 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
3127 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
3131 /* it is important to do the unlock after the load from wrps, since in
3132 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
3133 * to take the loader lock and some other thread may set the fields.
3135 mono_marshal_unlock ();
3139 /* Create the method from the builder and place it in the cache */
3140 static inline MonoMethod*
3141 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
3142 MonoMethodSignature *sig, int max_stack)
3144 MonoMethod **res = NULL;
3145 MonoRemotingMethods *wrps;
3146 GHashTable *cache = key->klass->image->remoting_invoke_cache;
3148 mono_marshal_lock ();
3149 wrps = g_hash_table_lookup (cache, key);
3151 wrps = g_new0 (MonoRemotingMethods, 1);
3152 g_hash_table_insert (cache, key, wrps);
3155 switch (mb->method->wrapper_type) {
3156 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
3157 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
3158 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
3159 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
3160 default: g_assert_not_reached (); break;
3162 mono_marshal_unlock ();
3166 newm = mono_mb_create_method (mb, sig, max_stack);
3168 mono_marshal_lock ();
3171 g_hash_table_insert (wrapper_hash, *res, key);
3172 mono_marshal_unlock ();
3174 mono_marshal_unlock ();
3175 mono_free_method (newm);
3183 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
3187 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
3190 mono_marshal_lock ();
3191 res = g_hash_table_lookup (wrapper_hash, wrapper);
3192 mono_marshal_unlock ();
3197 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3199 MonoMethodSignature *sig;
3200 MonoMethodBuilder *mb;
3206 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3207 !strcmp (method->name, "BeginInvoke"));
3209 sig = signature_no_pinvoke (method);
3211 cache = method->klass->image->delegate_begin_invoke_cache;
3212 if ((res = mono_marshal_find_in_cache (cache, sig)))
3215 g_assert (sig->hasthis);
3217 name = mono_signature_to_name (sig, "begin_invoke");
3218 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3221 mb->method->save_lmf = 1;
3223 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3225 mono_mb_emit_ldarg (mb, 0);
3226 mono_mb_emit_ldloc (mb, params_var);
3227 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3228 emit_thread_interrupt_checkpoint (mb);
3229 mono_mb_emit_byte (mb, CEE_RET);
3231 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3237 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3239 MonoDomain *domain = mono_domain_get ();
3240 MonoAsyncResult *ares;
3241 MonoMethod *method = NULL;
3242 MonoMethodSignature *sig;
3243 MonoMethodMessage *msg;
3244 MonoObject *res, *exc;
3245 MonoArray *out_args;
3248 g_assert (delegate);
3250 if (!delegate->method_info || !delegate->method_info->method)
3251 g_assert_not_reached ();
3253 klass = delegate->object.vtable->klass;
3255 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3256 g_assert (method != NULL);
3258 sig = signature_no_pinvoke (method);
3260 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3262 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
3265 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
3266 mono_raise_exception (mono_get_exception_invalid_operation (
3267 "The IAsyncResult object provided does not match this delegate."));
3271 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
3272 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3273 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
3274 mono_message_init (domain, msg, delegate->method_info, NULL);
3275 msg->call_type = CallType_EndInvoke;
3276 MONO_OBJECT_SETREF (msg, async_result, ares);
3277 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
3279 res = mono_thread_pool_finish (ares, &out_args, &exc);
3283 if (((MonoException*)exc)->stack_trace) {
3284 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
3286 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3288 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3291 mono_raise_exception ((MonoException*)exc);
3294 mono_method_return_message_restore (method, params, out_args);
3299 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3301 MonoType *t = mono_type_get_underlying_type (return_type);
3303 if (return_type->byref)
3304 return_type = &mono_defaults.int_class->byval_arg;
3307 case MONO_TYPE_VOID:
3308 g_assert_not_reached ();
3311 case MONO_TYPE_STRING:
3312 case MONO_TYPE_CLASS:
3313 case MONO_TYPE_OBJECT:
3314 case MONO_TYPE_ARRAY:
3315 case MONO_TYPE_SZARRAY:
3319 case MONO_TYPE_BOOLEAN:
3322 case MONO_TYPE_CHAR:
3332 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3333 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3335 case MONO_TYPE_GENERICINST:
3336 if (!mono_type_generic_inst_is_valuetype (return_type))
3339 case MONO_TYPE_VALUETYPE: {
3340 MonoClass *klass = mono_class_from_mono_type (return_type);
3341 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3342 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3346 g_warning ("type 0x%x not handled", return_type->type);
3347 g_assert_not_reached ();
3350 mono_mb_emit_byte (mb, CEE_RET);
3354 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3356 MonoMethodSignature *sig;
3357 MonoMethodBuilder *mb;
3363 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3364 !strcmp (method->name, "EndInvoke"));
3366 sig = signature_no_pinvoke (method);
3368 cache = method->klass->image->delegate_end_invoke_cache;
3369 if ((res = mono_marshal_find_in_cache (cache, sig)))
3372 g_assert (sig->hasthis);
3374 name = mono_signature_to_name (sig, "end_invoke");
3375 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3378 mb->method->save_lmf = 1;
3380 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3382 mono_mb_emit_ldarg (mb, 0);
3383 mono_mb_emit_ldloc (mb, params_var);
3384 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3385 emit_thread_interrupt_checkpoint (mb);
3387 if (sig->ret->type == MONO_TYPE_VOID) {
3388 mono_mb_emit_byte (mb, CEE_POP);
3389 mono_mb_emit_byte (mb, CEE_RET);
3391 mono_mb_emit_restore_result (mb, sig->ret);
3393 res = mono_mb_create_and_cache (cache, sig,
3394 mb, sig, sig->param_count + 16);
3401 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3403 MonoMethodMessage *msg;
3404 MonoTransparentProxy *this;
3405 MonoObject *res, *exc;
3406 MonoArray *out_args;
3408 this = *((MonoTransparentProxy **)params [0]);
3411 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3413 /* skip the this pointer */
3416 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
3419 MonoMethodSignature *sig = mono_method_signature (method);
3420 int count = sig->param_count;
3421 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3423 for (i=0; i<count; i++) {
3424 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3425 if (class->valuetype) {
3426 if (sig->params [i]->byref)
3427 mparams[i] = *((gpointer *)params [i]);
3429 mparams[i] = params [i];
3431 mparams[i] = *((gpointer**)params [i]);
3435 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3438 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3440 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3443 mono_raise_exception ((MonoException *)exc);
3445 mono_method_return_message_restore (method, params, out_args);
3451 * cominterop_get_native_wrapper_adjusted:
3452 * @method: managed COM Interop method
3454 * Returns: the generated method to call with signature matching
3455 * the unmanaged COM Method signature
3458 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
3461 MonoMethodBuilder *mb_native;
3462 MonoMarshalSpec **mspecs;
3463 MonoMethodSignature *sig, *sig_native;
3464 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3467 sig = mono_method_signature (method);
3469 // create unmanaged wrapper
3470 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3471 sig_native = cominterop_method_signature (method);
3473 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3474 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3476 mono_method_get_marshal_info (method, mspecs);
3478 // move managed args up one
3479 for (i = sig->param_count; i >= 1; i--)
3480 mspecs[i+1] = mspecs[i];
3482 // first arg is IntPtr for interface
3485 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3486 // move return spec to last param
3487 if (!MONO_TYPE_IS_VOID (sig->ret))
3488 mspecs[sig_native->param_count] = mspecs[0];
3493 mono_marshal_emit_native_wrapper(method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr);
3495 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3497 mono_mb_free (mb_native);
3499 for (i = sig_native->param_count; i >= 0; i--)
3501 mono_metadata_free_marshal_spec (mspecs [i]);
3508 * cominterop_get_native_wrapper:
3509 * @method: managed method
3511 * Returns: the generated method to call
3514 cominterop_get_native_wrapper (MonoMethod *method)
3518 MonoMethodBuilder *mb;
3519 MonoMethodSignature *sig, *csig;
3523 cache = method->klass->image->cominterop_wrapper_cache;
3524 if ((res = mono_marshal_find_in_cache (cache, method)))
3527 mono_init_com_types ();
3529 sig = mono_method_signature (method);
3530 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3532 /* if method klass is import, that means method
3533 * is really a com call. let interop system emit it.
3535 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3536 /* FIXME: we have to call actual class .ctor
3537 * instead of just __ComObject .ctor.
3539 if (!strcmp(method->name, ".ctor")) {
3540 static MonoMethod *ctor = NULL;
3543 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3544 mono_mb_emit_ldarg (mb, 0);
3545 mono_mb_emit_managed_call (mb, ctor, NULL);
3546 mono_mb_emit_byte (mb, CEE_RET);
3549 static MonoMethod * ThrowExceptionForHR = NULL;
3550 MonoMethod *adjusted_method;
3554 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3556 // add local variables
3557 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3558 if (!MONO_TYPE_IS_VOID (sig->ret))
3559 retval = mono_mb_add_local (mb, sig->ret);
3561 // get the type for the interface the method is defined on
3562 // and then get the underlying COM interface for that type
3563 mono_mb_emit_ldarg (mb, 0);
3564 mono_mb_emit_ptr (mb, method);
3565 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3566 mono_mb_emit_icon (mb, TRUE);
3567 mono_mb_emit_icall (mb, cominterop_get_interface);
3568 mono_mb_emit_stloc (mb, ptr_this);
3570 // arg 1 is unmanaged this pointer
3571 mono_mb_emit_ldloc (mb, ptr_this);
3574 for (i = 1; i <= sig->param_count; i++)
3575 mono_mb_emit_ldarg (mb, i);
3577 // push managed return value as byref last argument
3578 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3579 mono_mb_emit_ldloc_addr (mb, retval);
3581 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3582 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3584 if (!preserve_sig) {
3585 if (!ThrowExceptionForHR)
3586 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3587 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3589 // load return value managed is expecting
3590 if (!MONO_TYPE_IS_VOID (sig->ret))
3591 mono_mb_emit_ldloc (mb, retval);
3594 mono_mb_emit_byte (mb, CEE_RET);
3599 /* Does this case ever get hit? */
3601 char *msg = g_strdup ("non imported interfaces on \
3602 imported classes is not yet implemented.");
3603 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3605 csig = signature_dup (method->klass->image, sig);
3607 res = mono_mb_create_and_cache (cache, method,
3608 mb, csig, csig->param_count + 16);
3614 * cominterop_get_invoke:
3615 * @method: managed method
3617 * Returns: the generated method that calls the underlying __ComObject
3618 * rather than the proxy object.
3621 cominterop_get_invoke (MonoMethod *method)
3623 MonoMethodSignature *sig;
3624 MonoMethodBuilder *mb;
3627 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3631 if ((res = mono_marshal_find_in_cache (cache, method)))
3634 sig = signature_no_pinvoke (method);
3636 /* we cant remote methods without this pointer */
3640 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3642 /* get real proxy object, which is a ComInteropProxy in this case*/
3643 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3644 mono_mb_emit_ldarg (mb, 0);
3645 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3646 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3648 /* load the RCW from the ComInteropProxy*/
3649 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3650 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3652 /* load args and make the call on the RCW */
3653 for (i = 1; i <= sig->param_count; i++)
3654 mono_mb_emit_ldarg (mb, i);
3656 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3657 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3658 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3661 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3662 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3664 mono_mb_emit_op (mb, CEE_CALL, method);
3667 if (!strcmp(method->name, ".ctor")) {
3668 static MonoClass *com_interop_proxy_class = NULL;
3669 static MonoMethod *cache_proxy = NULL;
3671 if (!com_interop_proxy_class)
3672 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3674 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3676 mono_mb_emit_ldarg (mb, 0);
3677 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3678 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3679 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3682 emit_thread_interrupt_checkpoint (mb);
3684 mono_mb_emit_byte (mb, CEE_RET);
3686 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3691 /* Maps a managed object to its unmanaged representation
3692 * i.e. it's COM Callable Wrapper (CCW).
3696 static GHashTable* ccw_hash = NULL;
3698 /* Maps a CCW interface to it's containing CCW.
3699 * Note that a CCW support many interfaces.
3701 * Value: MonoCCWInterface*
3703 static GHashTable* ccw_interface_hash = NULL;
3705 /* Maps the IUnknown value of a RCW to
3706 * it's MonoComInteropProxy*.
3710 static GHashTable* rcw_hash = NULL;
3713 mono_marshal_get_remoting_invoke (MonoMethod *method)
3715 MonoMethodSignature *sig;
3716 MonoMethodBuilder *mb;
3722 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3725 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3726 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3727 return cominterop_get_invoke(method);
3729 sig = signature_no_pinvoke (method);
3731 /* we cant remote methods without this pointer */
3735 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3738 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3739 mb->method->save_lmf = 1;
3741 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3743 mono_mb_emit_ptr (mb, method);
3744 mono_mb_emit_ldloc (mb, params_var);
3745 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3746 emit_thread_interrupt_checkpoint (mb);
3748 if (sig->ret->type == MONO_TYPE_VOID) {
3749 mono_mb_emit_byte (mb, CEE_POP);
3750 mono_mb_emit_byte (mb, CEE_RET);
3752 mono_mb_emit_restore_result (mb, sig->ret);
3755 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3761 /* mono_get_xdomain_marshal_type()
3762 * Returns the kind of marshalling that a type needs for cross domain calls.
3764 static MonoXDomainMarshalType
3765 mono_get_xdomain_marshal_type (MonoType *t)
3768 case MONO_TYPE_VOID:
3769 g_assert_not_reached ();
3773 case MONO_TYPE_BOOLEAN:
3776 case MONO_TYPE_CHAR:
3783 return MONO_MARSHAL_NONE;
3784 case MONO_TYPE_STRING:
3785 return MONO_MARSHAL_COPY;
3786 case MONO_TYPE_ARRAY:
3787 case MONO_TYPE_SZARRAY: {
3788 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3789 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3790 return MONO_MARSHAL_COPY;
3795 return MONO_MARSHAL_SERIALIZE;
3799 /* mono_marshal_xdomain_copy_value
3800 * Makes a copy of "val" suitable for the current domain.
3803 mono_marshal_xdomain_copy_value (MonoObject *val)
3806 if (val == NULL) return NULL;
3808 domain = mono_domain_get ();
3810 switch (mono_object_class (val)->byval_arg.type) {
3811 case MONO_TYPE_VOID:
3812 g_assert_not_reached ();
3816 case MONO_TYPE_BOOLEAN:
3819 case MONO_TYPE_CHAR:
3825 case MONO_TYPE_R8: {
3826 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3828 case MONO_TYPE_STRING: {
3829 MonoString *str = (MonoString *) val;
3830 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3832 case MONO_TYPE_ARRAY:
3833 case MONO_TYPE_SZARRAY: {
3835 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3836 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3837 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3838 if (mt == MONO_MARSHAL_COPY) {
3839 int i, len = mono_array_length (acopy);
3840 for (i = 0; i < len; i++) {
3841 MonoObject *item = mono_array_get (acopy, gpointer, i);
3842 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3845 return (MonoObject *) acopy;
3849 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3850 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3851 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3852 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3853 newsb->length = oldsb->length;
3854 newsb->max_capacity = (gint32)0x7fffffff;
3855 return (MonoObject *) newsb;
3860 /* mono_marshal_xdomain_copy_out_value()
3861 * Copies the contents of the src instance into the dst instance. src and dst
3862 * must have the same type, and if they are arrays, the same size.
3865 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3867 if (src == NULL || dst == NULL) return;
3869 g_assert (mono_object_class (src) == mono_object_class (dst));
3871 switch (mono_object_class (src)->byval_arg.type) {
3872 case MONO_TYPE_ARRAY:
3873 case MONO_TYPE_SZARRAY: {
3874 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3875 if (mt == MONO_MARSHAL_SERIALIZE) return;
3876 if (mt == MONO_MARSHAL_COPY) {
3877 int i, len = mono_array_length ((MonoArray *)dst);
3878 for (i = 0; i < len; i++) {
3879 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3880 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3883 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3889 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3890 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3891 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3893 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)));
3894 dst_sb->cached_str = NULL;
3895 dst_sb->length = src_sb->length;
3900 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3902 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3903 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3907 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3909 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3912 /* mono_marshal_supports_fast_xdomain()
3913 * Returns TRUE if the method can use the fast xdomain wrapper.
3916 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3918 return !method->klass->contextbound &&
3919 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3923 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3925 MonoDomain *current_domain = mono_domain_get ();
3926 MonoDomain *domain = mono_domain_get_by_id (id);
3928 if (!domain || !mono_domain_set (domain, FALSE))
3929 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3932 mono_thread_push_appdomain_ref (domain);
3934 mono_thread_pop_appdomain_ref ();
3936 return current_domain->domain_id;
3940 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3942 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3945 /* mono_marshal_emit_load_domain_method ()
3946 * Loads into the stack a pointer to the code of the provided method for
3947 * the current domain.
3950 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3952 /* We need a pointer to the method for the running domain (not the domain
3953 * that compiles the method).
3955 mono_mb_emit_ptr (mb, method);
3956 mono_mb_emit_icall (mb, mono_compile_method);
3959 /* mono_marshal_check_domain_image ()
3960 * Returns TRUE if the image is loaded in the specified
3961 * application domain.
3964 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3969 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3973 mono_domain_assemblies_lock (domain);
3974 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3976 if (ass->image == image)
3979 mono_domain_assemblies_unlock (domain);
3984 /* mono_marshal_get_xappdomain_dispatch ()
3985 * Generates a method that dispatches a method call from another domain into
3986 * the current domain.
3989 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3991 MonoMethodSignature *sig, *csig;
3992 MonoMethodBuilder *mb;
3994 int i, j, param_index, copy_locals_base;
3995 MonoClass *ret_class = NULL;
3996 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3997 MonoExceptionClause *main_clause;
3998 MonoMethodHeader *header;
4000 gboolean copy_return;
4002 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
4005 sig = mono_method_signature (method);
4006 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
4009 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
4010 csig->params [j++] = &mono_defaults.object_class->byval_arg;
4011 csig->params [j++] = &byte_array_class->this_arg;
4012 csig->params [j++] = &byte_array_class->this_arg;
4013 for (i = 0; i < sig->param_count; i++) {
4014 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
4015 csig->params [j++] = sig->params [i];
4018 csig->ret = sig->ret;
4020 csig->ret = &mono_defaults.void_class->byval_arg;
4022 csig->hasthis = FALSE;
4024 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
4025 mb->method->save_lmf = 1;
4029 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4030 if (complex_count > 0)
4031 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4032 if (sig->ret->type != MONO_TYPE_VOID) {
4033 loc_return = mono_mb_add_local (mb, sig->ret);
4034 ret_class = mono_class_from_mono_type (sig->ret);
4039 main_clause = g_new0 (MonoExceptionClause, 1);
4040 main_clause->try_offset = mb->pos;
4042 /* Clean the call context */
4044 mono_mb_emit_byte (mb, CEE_LDNULL);
4045 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
4046 mono_mb_emit_byte (mb, CEE_POP);
4048 /* Deserialize call data */
4050 mono_mb_emit_ldarg (mb, 1);
4051 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4052 mono_mb_emit_byte (mb, CEE_DUP);
4053 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4055 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4056 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4058 if (complex_count > 0)
4059 mono_mb_emit_stloc (mb, loc_array);
4061 mono_mb_emit_byte (mb, CEE_POP);
4063 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
4065 /* Get the target object */
4067 mono_mb_emit_ldarg (mb, 0);
4068 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
4070 /* Load the arguments */
4072 copy_locals_base = mb->locals;
4073 param_index = 3; // Index of the first non-serialized parameter of this wrapper
4075 for (i = 0; i < sig->param_count; i++) {
4076 MonoType *pt = sig->params [i];
4077 MonoClass *pclass = mono_class_from_mono_type (pt);
4078 switch (marshal_types [i]) {
4079 case MONO_MARSHAL_SERIALIZE: {
4080 /* take the value from the serialized array */
4081 mono_mb_emit_ldloc (mb, loc_array);
4082 mono_mb_emit_icon (mb, j++);
4084 if (pclass->valuetype) {
4085 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4086 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4088 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
4091 if (pclass->valuetype) {
4092 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4093 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4094 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4096 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4097 if (pclass != mono_defaults.object_class) {
4098 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4104 case MONO_MARSHAL_COPY_OUT: {
4105 /* Keep a local copy of the value since we need to copy it back after the call */
4106 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4107 mono_mb_emit_ldarg (mb, param_index++);
4108 mono_marshal_emit_xdomain_copy_value (mb, pclass);
4109 mono_mb_emit_byte (mb, CEE_DUP);
4110 mono_mb_emit_stloc (mb, copy_local);
4113 case MONO_MARSHAL_COPY: {
4114 mono_mb_emit_ldarg (mb, param_index);
4116 mono_mb_emit_byte (mb, CEE_DUP);
4117 mono_mb_emit_byte (mb, CEE_DUP);
4118 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4119 mono_marshal_emit_xdomain_copy_value (mb, pclass);
4120 mono_mb_emit_byte (mb, CEE_STIND_REF);
4122 mono_marshal_emit_xdomain_copy_value (mb, pclass);
4127 case MONO_MARSHAL_NONE:
4128 mono_mb_emit_ldarg (mb, param_index++);
4133 /* Make the call to the real object */
4135 emit_thread_force_interrupt_checkpoint (mb);
4137 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4139 if (sig->ret->type != MONO_TYPE_VOID)
4140 mono_mb_emit_stloc (mb, loc_return);
4142 /* copy back MONO_MARSHAL_COPY_OUT parameters */
4146 for (i = 0; i < sig->param_count; i++) {
4147 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
4148 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
4149 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4150 mono_mb_emit_ldarg (mb, param_index);
4151 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
4156 /* Serialize the return values */
4158 if (complex_out_count > 0) {
4159 /* Reset parameters in the array that don't need to be serialized back */
4161 for (i = 0; i < sig->param_count; i++) {
4162 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
4163 if (!sig->params [i]->byref) {
4164 mono_mb_emit_ldloc (mb, loc_array);
4165 mono_mb_emit_icon (mb, j);
4166 mono_mb_emit_byte (mb, CEE_LDNULL);
4167 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4172 /* Add the return value to the array */
4174 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4175 mono_mb_emit_ldloc (mb, loc_array);
4176 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
4177 mono_mb_emit_ldloc (mb, loc_return);
4178 if (ret_class->valuetype) {
4179 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4181 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4186 mono_mb_emit_ldarg (mb, 1);
4187 mono_mb_emit_ldloc (mb, loc_array);
4188 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4189 mono_mb_emit_byte (mb, CEE_STIND_REF);
4190 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4191 mono_mb_emit_ldarg (mb, 1);
4192 mono_mb_emit_ldloc (mb, loc_return);
4193 if (ret_class->valuetype) {
4194 mono_mb_emit_op (mb, CEE_BOX, ret_class);
4196 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4197 mono_mb_emit_byte (mb, CEE_STIND_REF);
4199 mono_mb_emit_ldarg (mb, 1);
4200 mono_mb_emit_byte (mb, CEE_LDNULL);
4201 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4202 mono_mb_emit_byte (mb, CEE_STIND_REF);
4205 mono_mb_emit_ldarg (mb, 2);
4206 mono_mb_emit_byte (mb, CEE_LDNULL);
4207 mono_mb_emit_byte (mb, CEE_STIND_REF);
4208 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
4210 /* Main exception catch */
4211 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4212 main_clause->try_len = mb->pos - main_clause->try_offset;
4213 main_clause->data.catch_class = mono_defaults.object_class;
4216 main_clause->handler_offset = mb->pos;
4217 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
4218 mono_mb_emit_stloc (mb, loc_serialized_exc);
4219 mono_mb_emit_ldarg (mb, 2);
4220 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4221 mono_mb_emit_byte (mb, CEE_STIND_REF);
4222 mono_mb_emit_branch (mb, CEE_LEAVE);
4223 main_clause->handler_len = mb->pos - main_clause->handler_offset;
4226 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
4229 mono_mb_emit_ldloc (mb, loc_return);
4231 mono_mb_emit_byte (mb, CEE_RET);
4233 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
4236 header = ((MonoMethodNormal *)res)->header;
4237 header->num_clauses = 1;
4238 header->clauses = main_clause;
4243 /* mono_marshal_get_xappdomain_invoke ()
4244 * Generates a fast remoting wrapper for cross app domain calls.
4247 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
4249 MonoMethodSignature *sig;
4250 MonoMethodBuilder *mb;
4252 int i, j, complex_count, complex_out_count, copy_locals_base;
4254 MonoClass *ret_class = NULL;
4255 MonoMethod *xdomain_method;
4256 int ret_marshal_type = MONO_MARSHAL_NONE;
4257 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
4258 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
4259 int pos, pos_dispatch, pos_noex;
4260 gboolean copy_return = FALSE;
4264 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
4267 /* we cant remote methods without this pointer */
4268 if (!mono_method_signature (method)->hasthis)
4271 if (!mono_marshal_supports_fast_xdomain (method))
4272 return mono_marshal_get_remoting_invoke (method);
4274 mono_remoting_marshal_init ();
4276 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
4279 sig = signature_no_pinvoke (method);
4281 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
4282 mb->method->save_lmf = 1;
4284 /* Count the number of parameters that need to be serialized */
4286 marshal_types = alloca (sizeof (int) * sig->param_count);
4287 complex_count = complex_out_count = 0;
4288 for (i = 0; i < sig->param_count; i++) {
4289 MonoType *ptype = sig->params[i];
4290 int mt = mono_get_xdomain_marshal_type (ptype);
4292 /* If the [Out] attribute is applied to a parameter that can be internally copied,
4293 * the copy will be made by reusing the original object instance
4295 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
4296 mt = MONO_MARSHAL_COPY_OUT;
4297 else if (mt == MONO_MARSHAL_SERIALIZE) {
4299 if (ptype->byref) complex_out_count++;
4301 marshal_types [i] = mt;
4304 if (sig->ret->type != MONO_TYPE_VOID) {
4305 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
4306 ret_class = mono_class_from_mono_type (sig->ret);
4307 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
4312 if (complex_count > 0)
4313 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4314 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4315 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4317 loc_return = mono_mb_add_local (mb, sig->ret);
4318 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4319 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
4320 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
4321 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4323 /* Save thread domain data */
4325 mono_mb_emit_icall (mb, mono_context_get);
4326 mono_mb_emit_byte (mb, CEE_DUP);
4327 mono_mb_emit_stloc (mb, loc_context);
4329 /* If the thread is not running in the default context, it needs to go
4330 * through the whole remoting sink, since the context is going to change
4332 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
4333 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4335 /* Another case in which the fast path can't be used: when the target domain
4336 * has a different image for the same assembly.
4339 /* Get the target domain id */
4341 mono_mb_emit_ldarg (mb, 0);
4342 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4343 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4344 mono_mb_emit_byte (mb, CEE_DUP);
4345 mono_mb_emit_stloc (mb, loc_real_proxy);
4347 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
4348 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4349 mono_mb_emit_stloc (mb, loc_domainid);
4351 /* Check if the target domain has the same image for the required assembly */
4353 mono_mb_emit_ldloc (mb, loc_domainid);
4354 mono_mb_emit_ptr (mb, method->klass->image);
4355 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
4356 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
4358 /* Use the whole remoting sink to dispatch this message */
4360 mono_mb_patch_short_branch (mb, pos);
4362 mono_mb_emit_ldarg (mb, 0);
4363 for (i = 0; i < sig->param_count; i++)
4364 mono_mb_emit_ldarg (mb, i + 1);
4366 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
4367 mono_mb_emit_byte (mb, CEE_RET);
4368 mono_mb_patch_short_branch (mb, pos_dispatch);
4370 /* Create the array that will hold the parameters to be serialized */
4372 if (complex_count > 0) {
4373 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 */
4374 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
4377 for (i = 0; i < sig->param_count; i++) {
4379 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4380 pclass = mono_class_from_mono_type (sig->params[i]);
4381 mono_mb_emit_byte (mb, CEE_DUP);
4382 mono_mb_emit_icon (mb, j);
4383 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
4384 if (sig->params[i]->byref) {
4385 if (pclass->valuetype)
4386 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4388 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4390 if (pclass->valuetype)
4391 mono_mb_emit_op (mb, CEE_BOX, pclass);
4392 mono_mb_emit_byte (mb, CEE_STELEM_REF);
4395 mono_mb_emit_stloc (mb, loc_array);
4397 /* Serialize parameters */
4399 mono_mb_emit_ldloc (mb, loc_array);
4400 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4401 mono_mb_emit_stloc (mb, loc_serialized_data);
4403 mono_mb_emit_byte (mb, CEE_LDNULL);
4404 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
4405 mono_mb_emit_stloc (mb, loc_serialized_data);
4410 mono_mb_emit_ldloc (mb, loc_domainid);
4411 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4412 mono_marshal_emit_switch_domain (mb);
4413 mono_mb_emit_stloc (mb, loc_old_domainid);
4415 /* Load the arguments */
4417 mono_mb_emit_ldloc (mb, loc_real_proxy);
4418 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
4419 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
4421 copy_locals_base = mb->locals;
4422 for (i = 0; i < sig->param_count; i++) {
4423 switch (marshal_types [i]) {
4424 case MONO_MARSHAL_SERIALIZE:
4426 case MONO_MARSHAL_COPY: {
4427 mono_mb_emit_ldarg (mb, i+1);
4428 if (sig->params [i]->byref) {
4429 /* make a local copy of the byref parameter. The real parameter
4430 * will be updated after the xdomain call
4432 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4433 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
4434 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4435 mono_mb_emit_stloc (mb, copy_local);
4436 mono_mb_emit_ldloc_addr (mb, copy_local);
4440 case MONO_MARSHAL_COPY_OUT:
4441 case MONO_MARSHAL_NONE:
4442 mono_mb_emit_ldarg (mb, i+1);
4447 /* Make the call to the invoke wrapper in the target domain */
4449 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
4450 mono_marshal_emit_load_domain_method (mb, xdomain_method);
4451 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
4454 mono_mb_emit_stloc (mb, loc_return);
4458 mono_mb_emit_ldloc (mb, loc_old_domainid);
4459 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4460 mono_marshal_emit_switch_domain (mb);
4461 mono_mb_emit_byte (mb, CEE_POP);
4463 /* Restore thread domain data */
4465 mono_mb_emit_ldloc (mb, loc_context);
4466 mono_mb_emit_icall (mb, mono_context_set);
4468 /* if (loc_serialized_exc != null) ... */
4470 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4471 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4473 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4474 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4475 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4476 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4477 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4478 mono_mb_emit_byte (mb, CEE_THROW);
4479 mono_mb_patch_addr_s (mb, pos_noex, mb->pos - pos_noex - 1);
4481 /* copy back non-serialized output parameters */
4484 for (i = 0; i < sig->param_count; i++) {
4485 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4486 mono_mb_emit_ldarg (mb, i + 1);
4487 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4488 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4489 mono_mb_emit_byte (mb, CEE_STIND_REF);
4492 /* Deserialize out parameters */
4494 if (complex_out_count > 0) {
4495 mono_mb_emit_ldloc (mb, loc_serialized_data);
4496 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4497 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4498 mono_mb_emit_stloc (mb, loc_array);
4500 /* Copy back output parameters and return type */
4503 for (i = 0; i < sig->param_count; i++) {
4504 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4505 if (sig->params[i]->byref) {
4506 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4507 mono_mb_emit_ldarg (mb, i + 1);
4508 mono_mb_emit_ldloc (mb, loc_array);
4509 mono_mb_emit_icon (mb, j);
4510 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4511 if (pclass->valuetype) {
4512 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4513 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4514 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4516 if (pclass != mono_defaults.object_class)
4517 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4518 mono_mb_emit_byte (mb, CEE_STIND_REF);
4524 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4525 mono_mb_emit_ldloc (mb, loc_array);
4526 mono_mb_emit_icon (mb, complex_count);
4527 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4528 if (ret_class->valuetype) {
4529 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4530 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4533 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4534 mono_mb_emit_ldloc (mb, loc_serialized_data);
4535 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4536 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4537 if (ret_class->valuetype) {
4538 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4539 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4540 } else if (ret_class != mono_defaults.object_class) {
4541 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4544 mono_mb_emit_ldloc (mb, loc_serialized_data);
4545 mono_mb_emit_byte (mb, CEE_DUP);
4546 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4547 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4549 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
4550 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4551 mono_mb_emit_byte (mb, CEE_POP);
4555 mono_mb_emit_ldloc (mb, loc_return);
4556 if (ret_marshal_type == MONO_MARSHAL_COPY)
4557 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4560 mono_mb_emit_byte (mb, CEE_RET);
4562 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4569 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4571 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4572 return mono_marshal_get_xappdomain_invoke (method);
4573 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4574 return cominterop_get_invoke (method);
4576 return mono_marshal_get_remoting_invoke (method);
4579 G_GNUC_UNUSED static gpointer
4580 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4582 if (rp->target_domain_id != -1)
4583 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4585 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4589 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4591 MonoMethodSignature *sig;
4592 MonoMethodBuilder *mb;
4593 MonoMethod *res, *native;
4594 int i, pos, pos_rem;
4598 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4601 /* we cant remote methods without this pointer */
4602 g_assert (mono_method_signature (method)->hasthis);
4604 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4607 sig = signature_no_pinvoke (method);
4609 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4611 for (i = 0; i <= sig->param_count; i++)
4612 mono_mb_emit_ldarg (mb, i);
4614 mono_mb_emit_ldarg (mb, 0);
4615 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4617 if (mono_marshal_supports_fast_xdomain (method)) {
4618 mono_mb_emit_ldarg (mb, 0);
4619 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4621 /* wrapper for cross app domain calls */
4622 native = mono_marshal_get_xappdomain_invoke (method);
4623 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4624 mono_mb_emit_byte (mb, CEE_RET);
4626 mono_mb_patch_addr (mb, pos_rem, mb->pos - (pos_rem + 4));
4628 /* wrapper for normal remote calls */
4629 native = mono_marshal_get_remoting_invoke (method);
4630 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4631 mono_mb_emit_byte (mb, CEE_RET);
4634 mono_mb_patch_branch (mb, pos);
4635 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4636 mono_mb_emit_byte (mb, CEE_RET);
4638 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4645 * the returned method invokes all methods in a multicast delegate
4648 mono_marshal_get_delegate_invoke (MonoMethod *method)
4650 MonoMethodSignature *sig, *static_sig;
4652 MonoMethodBuilder *mb;
4658 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4659 !strcmp (method->name, "Invoke"));
4661 sig = signature_no_pinvoke (method);
4663 cache = method->klass->image->delegate_invoke_cache;
4664 if ((res = mono_marshal_find_in_cache (cache, sig)))
4667 static_sig = signature_dup (method->klass->image, sig);
4668 static_sig->hasthis = 0;
4670 name = mono_signature_to_name (sig, "invoke");
4671 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4674 /* allocate local 0 (object) */
4675 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4677 g_assert (sig->hasthis);
4681 * prev.Invoke( args .. );
4682 * return this.<target>( args .. );
4685 /* this wrapper can be used in unmanaged-managed transitions */
4686 emit_thread_interrupt_checkpoint (mb);
4688 /* get this->prev */
4689 mono_mb_emit_ldarg (mb, 0);
4690 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4691 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4693 /* if prev != null */
4694 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4698 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4699 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4701 mono_mb_emit_ldarg (mb, 0);
4702 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4703 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4704 for (i = 0; i < sig->param_count; i++)
4705 mono_mb_emit_ldarg (mb, i + 1);
4706 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4707 if (sig->ret->type != MONO_TYPE_VOID)
4708 mono_mb_emit_byte (mb, CEE_POP);
4710 /* continued or prev == null */
4711 mono_mb_patch_branch (mb, pos0);
4713 /* get this->target */
4714 mono_mb_emit_ldarg (mb, 0);
4715 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4716 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4717 mono_mb_emit_stloc (mb, 0);
4719 /* if target != null */
4720 mono_mb_emit_ldloc (mb, 0);
4721 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4723 /* then call this->method_ptr nonstatic */
4724 mono_mb_emit_ldloc (mb, 0);
4725 for (i = 0; i < sig->param_count; ++i)
4726 mono_mb_emit_ldarg (mb, i + 1);
4727 mono_mb_emit_ldarg (mb, 0);
4728 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4729 mono_mb_emit_byte (mb, CEE_LDIND_I );
4730 mono_mb_emit_op (mb, CEE_CALLI, sig);
4732 mono_mb_emit_byte (mb, CEE_RET);
4734 /* else [target == null] call this->method_ptr static */
4735 mono_mb_patch_branch (mb, pos0);
4737 for (i = 0; i < sig->param_count; ++i)
4738 mono_mb_emit_ldarg (mb, i + 1);
4739 mono_mb_emit_ldarg (mb, 0);
4740 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4741 mono_mb_emit_byte (mb, CEE_LDIND_I );
4742 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4744 mono_mb_emit_byte (mb, CEE_RET);
4746 res = mono_mb_create_and_cache (cache, sig,
4747 mb, sig, sig->param_count + 16);
4754 * signature_dup_add_this:
4756 * Make a copy of @sig, adding an explicit this argument.
4758 static MonoMethodSignature*
4759 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4761 MonoMethodSignature *res;
4764 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4765 memcpy (res, sig, sizeof (MonoMethodSignature));
4766 res->param_count = sig->param_count + 1;
4767 res->hasthis = FALSE;
4768 for (i = sig->param_count - 1; i >= 0; i --)
4769 res->params [i + 1] = sig->params [i];
4770 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4776 MonoMethodSignature *ctor_sig;
4777 MonoMethodSignature *sig;
4780 /* protected by the marshal lock, contains CtorSigPair pointers */
4781 static GSList *strsig_list = NULL;
4783 static MonoMethodSignature *
4784 lookup_string_ctor_signature (MonoMethodSignature *sig)
4786 MonoMethodSignature *callsig;
4790 mono_marshal_lock ();
4792 for (item = strsig_list; item; item = item->next) {
4794 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4795 * because it is lock-free.
4797 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4802 mono_marshal_unlock ();
4806 static MonoMethodSignature *
4807 add_string_ctor_signature (MonoMethod *method)
4809 MonoMethodSignature *callsig;
4812 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4813 callsig->ret = &mono_defaults.string_class->byval_arg;
4814 cs = g_new (CtorSigPair, 1);
4816 cs->ctor_sig = mono_method_signature (method);
4818 mono_marshal_lock ();
4819 strsig_list = g_slist_prepend (strsig_list, cs);
4820 mono_marshal_unlock ();
4825 * generates IL code for the runtime invoke function
4826 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4828 * we also catch exceptions if exc != null
4831 mono_marshal_get_runtime_invoke (MonoMethod *method)
4833 MonoMethodSignature *sig, *csig, *callsig;
4834 MonoExceptionClause *clause;
4835 MonoMethodHeader *header;
4836 MonoMethodBuilder *mb;
4837 GHashTable *cache = NULL;
4838 MonoClass *target_klass;
4839 MonoMethod *res = NULL;
4840 static MonoString *string_dummy = NULL;
4841 static MonoMethodSignature *dealy_abort_sig = NULL;
4847 if (method->string_ctor) {
4848 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4850 callsig = add_string_ctor_signature (method);
4852 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4854 * Valuetype methods receive a managed pointer as the this argument.
4855 * Create a new signature to reflect this.
4857 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4859 callsig = mono_method_signature (method);
4863 /* See bug #80743 */
4864 target_klass = method->klass;
4866 target_klass = mono_defaults.object_class;
4868 * if types in the signature belong to non-mscorlib, we cache only
4869 * in the method image
4871 if (mono_class_from_mono_type (callsig->ret)->image != mono_defaults.corlib) {
4872 target_klass = method->klass;
4874 for (i = 0; i < callsig->param_count; i++) {
4875 if (mono_class_from_mono_type (callsig->params [i])->image != mono_defaults.corlib) {
4876 target_klass = method->klass;
4882 cache = target_klass->image->runtime_invoke_cache;
4884 /* from mono_marshal_find_in_cache */
4885 mono_marshal_lock ();
4886 res = g_hash_table_lookup (cache, callsig);
4887 mono_marshal_unlock ();
4893 if (!dealy_abort_sig) {
4894 dealy_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4895 dealy_abort_sig->ret = &mono_defaults.void_class->byval_arg;
4896 dealy_abort_sig->pinvoke = 0;
4899 /* to make it work with our special string constructors */
4900 if (!string_dummy) {
4901 MONO_GC_REGISTER_ROOT (string_dummy);
4902 string_dummy = mono_string_new_wrapper ("dummy");
4905 sig = mono_method_signature (method);
4907 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4909 csig->ret = &mono_defaults.object_class->byval_arg;
4910 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4911 csig->params [0] = callsig->params [0];
4913 csig->params [0] = &mono_defaults.object_class->byval_arg;
4914 csig->params [1] = &mono_defaults.int_class->byval_arg;
4915 csig->params [2] = &mono_defaults.int_class->byval_arg;
4916 csig->params [3] = &mono_defaults.int_class->byval_arg;
4918 name = mono_signature_to_name (callsig, "runtime_invoke");
4919 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4922 /* allocate local 0 (object) tmp */
4923 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4924 /* allocate local 1 (object) exc */
4925 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4927 /* cond set *exc to null */
4928 mono_mb_emit_byte (mb, CEE_LDARG_2);
4929 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4930 mono_mb_emit_byte (mb, 3);
4931 mono_mb_emit_byte (mb, CEE_LDARG_2);
4932 mono_mb_emit_byte (mb, CEE_LDNULL);
4933 mono_mb_emit_byte (mb, CEE_STIND_REF);
4935 emit_thread_force_interrupt_checkpoint (mb);
4938 if (method->string_ctor) {
4939 mono_mb_emit_ptr (mb, string_dummy);
4941 mono_mb_emit_ldarg (mb, 0);
4945 for (i = 0; i < sig->param_count; i++) {
4946 MonoType *t = sig->params [i];
4949 mono_mb_emit_ldarg (mb, 1);
4951 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4952 mono_mb_emit_byte (mb, CEE_ADD);
4954 mono_mb_emit_byte (mb, CEE_LDIND_I);
4959 type = sig->params [i]->type;
4963 case MONO_TYPE_BOOLEAN:
4967 case MONO_TYPE_CHAR:
4976 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4978 case MONO_TYPE_STRING:
4979 case MONO_TYPE_CLASS:
4980 case MONO_TYPE_ARRAY:
4982 case MONO_TYPE_SZARRAY:
4983 case MONO_TYPE_OBJECT:
4986 case MONO_TYPE_GENERICINST:
4987 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4993 case MONO_TYPE_VALUETYPE:
4994 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4995 type = t->data.klass->enum_basetype->type;
4998 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4999 /* Need to convert a boxed vtype to an mp to a Nullable struct */
5000 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
5001 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5003 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
5007 g_assert_not_reached ();
5011 mono_mb_emit_ldarg (mb, 3);
5012 mono_mb_emit_calli (mb, callsig);
5014 if (sig->ret->byref) {
5016 g_assert_not_reached ();
5020 switch (sig->ret->type) {
5021 case MONO_TYPE_VOID:
5022 if (!method->string_ctor)
5023 mono_mb_emit_byte (mb, CEE_LDNULL);
5025 case MONO_TYPE_BOOLEAN:
5026 case MONO_TYPE_CHAR:
5039 case MONO_TYPE_VALUETYPE:
5040 case MONO_TYPE_TYPEDBYREF:
5041 case MONO_TYPE_GENERICINST:
5042 /* box value types */
5043 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
5045 case MONO_TYPE_STRING:
5046 case MONO_TYPE_CLASS:
5047 case MONO_TYPE_ARRAY:
5048 case MONO_TYPE_SZARRAY:
5049 case MONO_TYPE_OBJECT:
5054 g_assert_not_reached ();
5057 mono_mb_emit_stloc (mb, 0);
5059 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5061 mono_loader_lock ();
5062 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
5063 mono_loader_unlock ();
5064 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5065 clause->try_len = mb->pos;
5068 clause->data.filter_offset = mb->pos;
5070 mono_mb_emit_byte (mb, CEE_POP);
5071 mono_mb_emit_byte (mb, CEE_LDARG_2);
5072 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5073 mono_mb_emit_byte (mb, CEE_PREFIX1);
5074 mono_mb_emit_byte (mb, CEE_CGT_UN);
5075 mono_mb_emit_byte (mb, CEE_PREFIX1);
5076 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5078 clause->handler_offset = mb->pos;
5081 /* store exception */
5082 mono_mb_emit_stloc (mb, 1);
5084 mono_mb_emit_byte (mb, CEE_LDARG_2);
5085 mono_mb_emit_ldloc (mb, 1);
5086 mono_mb_emit_byte (mb, CEE_STIND_REF);
5088 mono_mb_emit_byte (mb, CEE_LDNULL);
5089 mono_mb_emit_stloc (mb, 0);
5091 /* Check for the abort exception */
5092 mono_mb_emit_ldloc (mb, 1);
5093 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5094 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5096 /* Delay the abort exception */
5097 mono_mb_emit_native_call (mb, dealy_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
5099 mono_mb_patch_short_branch (mb, posna);
5100 mono_mb_emit_branch (mb, CEE_LEAVE);
5102 clause->handler_len = mb->pos - clause->handler_offset;
5105 mono_mb_patch_branch (mb, pos);
5106 mono_mb_emit_ldloc (mb, 0);
5107 mono_mb_emit_byte (mb, CEE_RET);
5109 /* taken from mono_mb_create_and_cache */
5110 mono_marshal_lock ();
5111 res = g_hash_table_lookup (cache, callsig);
5112 mono_marshal_unlock ();
5114 /* Somebody may have created it before us */
5117 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
5119 mono_marshal_lock ();
5120 res = g_hash_table_lookup (cache, callsig);
5123 g_hash_table_insert (cache, callsig, res);
5124 g_hash_table_insert (wrapper_hash, res, callsig);
5126 mono_free_method (newm);
5128 mono_marshal_unlock ();
5131 /* end mono_mb_create_and_cache */
5135 header = ((MonoMethodNormal *)res)->header;
5136 header->num_clauses = 1;
5137 header->clauses = clause;
5143 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5145 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5146 klass->name_space, klass->name);
5148 mono_mb_emit_exception_marshal_directive (mb, msg);
5152 * mono_marshal_get_ldfld_remote_wrapper:
5153 * @klass: The return type
5155 * This method generates a wrapper for calling mono_load_remote_field_new with
5156 * the appropriate return type.
5159 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5161 MonoMethodSignature *sig, *csig;
5162 MonoMethodBuilder *mb;
5167 cache = klass->image->ldfld_remote_wrapper_cache;
5168 if ((res = mono_marshal_find_in_cache (cache, klass)))
5172 * This wrapper is similar to an icall wrapper but all the wrappers
5173 * call the same C function, but with a different signature.
5175 name = g_strdup_printf ("__mono_load_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
5176 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD_REMOTE);
5179 mb->method->save_lmf = 1;
5181 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5182 sig->params [0] = &mono_defaults.object_class->byval_arg;
5183 sig->params [1] = &mono_defaults.int_class->byval_arg;
5184 sig->params [2] = &mono_defaults.int_class->byval_arg;
5185 sig->ret = &klass->this_arg;
5187 mono_mb_emit_ldarg (mb, 0);
5188 mono_mb_emit_ldarg (mb, 1);
5189 mono_mb_emit_ldarg (mb, 2);
5191 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5192 csig->params [0] = &mono_defaults.object_class->byval_arg;
5193 csig->params [1] = &mono_defaults.int_class->byval_arg;
5194 csig->params [2] = &mono_defaults.int_class->byval_arg;
5195 csig->ret = &klass->this_arg;
5198 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5199 emit_thread_interrupt_checkpoint (mb);
5201 mono_mb_emit_byte (mb, CEE_RET);
5203 res = mono_mb_create_and_cache (cache, klass,
5204 mb, sig, sig->param_count + 16);
5211 * mono_marshal_get_ldfld_wrapper:
5212 * @type: the type of the field
5214 * This method generates a function which can be use to load a field with type
5215 * @type from an object. The generated function has the following signature:
5216 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5219 mono_marshal_get_ldfld_wrapper (MonoType *type)
5221 MonoMethodSignature *sig;
5222 MonoMethodBuilder *mb;
5227 int t, pos0, pos1 = 0;
5229 type = mono_type_get_underlying_type (type);
5234 if (type->type == MONO_TYPE_SZARRAY) {
5235 klass = mono_defaults.array_class;
5236 } else if (type->type == MONO_TYPE_VALUETYPE) {
5237 klass = type->data.klass;
5238 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5239 klass = mono_defaults.object_class;
5240 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5241 klass = mono_defaults.int_class;
5242 } else if (t == MONO_TYPE_GENERICINST) {
5243 if (mono_type_generic_inst_is_valuetype (type))
5244 klass = mono_class_from_mono_type (type);
5246 klass = mono_defaults.object_class;
5248 klass = mono_class_from_mono_type (type);
5251 klass = mono_defaults.int_class;
5254 cache = klass->image->ldfld_wrapper_cache;
5255 if ((res = mono_marshal_find_in_cache (cache, klass)))
5258 /* we add the %p pointer value of klass because class names are not unique */
5259 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5260 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5263 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5264 sig->params [0] = &mono_defaults.object_class->byval_arg;
5265 sig->params [1] = &mono_defaults.int_class->byval_arg;
5266 sig->params [2] = &mono_defaults.int_class->byval_arg;
5267 sig->params [3] = &mono_defaults.int_class->byval_arg;
5268 sig->ret = &klass->byval_arg;
5270 mono_mb_emit_ldarg (mb, 0);
5271 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5273 mono_mb_emit_ldarg (mb, 0);
5274 mono_mb_emit_ldarg (mb, 1);
5275 mono_mb_emit_ldarg (mb, 2);
5277 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5280 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5281 csig->params [0] = &mono_defaults.object_class->byval_arg;
5282 csig->params [1] = &mono_defaults.int_class->byval_arg;
5283 csig->params [2] = &mono_defaults.int_class->byval_arg;
5284 csig->ret = &klass->this_arg;
5287 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5288 emit_thread_interrupt_checkpoint (mb);
5291 if (klass->valuetype) {
5292 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5293 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5295 mono_mb_emit_byte (mb, CEE_RET);
5299 mono_mb_patch_branch (mb, pos0);
5301 mono_mb_emit_ldarg (mb, 0);
5302 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5303 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5304 mono_mb_emit_ldarg (mb, 3);
5305 mono_mb_emit_byte (mb, CEE_ADD);
5307 if (klass->valuetype)
5308 mono_mb_patch_branch (mb, pos1);
5313 case MONO_TYPE_BOOLEAN:
5314 case MONO_TYPE_CHAR:
5323 case MONO_TYPE_ARRAY:
5324 case MONO_TYPE_SZARRAY:
5325 case MONO_TYPE_OBJECT:
5326 case MONO_TYPE_CLASS:
5327 case MONO_TYPE_STRING:
5331 case MONO_TYPE_FNPTR:
5332 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5334 case MONO_TYPE_VALUETYPE:
5335 g_assert (!klass->enumtype);
5336 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5338 case MONO_TYPE_GENERICINST:
5339 if (mono_type_generic_inst_is_valuetype (type)) {
5340 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5342 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5346 g_warning ("type %x not implemented", type->type);
5347 g_assert_not_reached ();
5350 mono_mb_emit_byte (mb, CEE_RET);
5352 res = mono_mb_create_and_cache (cache, klass,
5353 mb, sig, sig->param_count + 16);
5360 * mono_marshal_get_ldflda_wrapper:
5361 * @type: the type of the field
5363 * This method generates a function which can be used to load a field address
5364 * from an object. The generated function has the following signature:
5365 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5368 mono_marshal_get_ldflda_wrapper (MonoType *type)
5370 MonoMethodSignature *sig;
5371 MonoMethodBuilder *mb;
5378 type = mono_type_get_underlying_type (type);
5382 if (type->type == MONO_TYPE_SZARRAY) {
5383 klass = mono_defaults.array_class;
5384 } else if (type->type == MONO_TYPE_VALUETYPE) {
5385 klass = type->data.klass;
5386 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5387 t == MONO_TYPE_CLASS) {
5388 klass = mono_defaults.object_class;
5389 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5390 klass = mono_defaults.int_class;
5391 } else if (t == MONO_TYPE_GENERICINST) {
5392 if (mono_type_generic_inst_is_valuetype (type))
5393 klass = mono_class_from_mono_type (type);
5395 klass = mono_defaults.object_class;
5397 klass = mono_class_from_mono_type (type);
5400 klass = mono_defaults.int_class;
5403 cache = klass->image->ldflda_wrapper_cache;
5404 if ((res = mono_marshal_find_in_cache (cache, klass)))
5407 /* we add the %p pointer value of klass because class names are not unique */
5408 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5409 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5412 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5413 sig->params [0] = &mono_defaults.object_class->byval_arg;
5414 sig->params [1] = &mono_defaults.int_class->byval_arg;
5415 sig->params [2] = &mono_defaults.int_class->byval_arg;
5416 sig->params [3] = &mono_defaults.int_class->byval_arg;
5417 sig->ret = &mono_defaults.int_class->byval_arg;
5419 mono_mb_emit_ldarg (mb, 0);
5420 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5422 /* FIXME: Only throw this if the object is in another appdomain */
5423 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5425 mono_mb_patch_branch (mb, pos0);
5427 mono_mb_emit_ldarg (mb, 0);
5428 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5429 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5430 mono_mb_emit_ldarg (mb, 3);
5431 mono_mb_emit_byte (mb, CEE_ADD);
5433 mono_mb_emit_byte (mb, CEE_RET);
5435 res = mono_mb_create_and_cache (cache, klass,
5436 mb, sig, sig->param_count + 16);
5443 * mono_marshal_get_stfld_remote_wrapper:
5444 * klass: The type of the field
5446 * This function generates a wrapper for calling mono_store_remote_field_new
5447 * with the appropriate signature.
5450 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5452 MonoMethodSignature *sig, *csig;
5453 MonoMethodBuilder *mb;
5458 cache = klass->image->stfld_remote_wrapper_cache;
5459 if ((res = mono_marshal_find_in_cache (cache, klass)))
5462 name = g_strdup_printf ("__mono_store_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
5463 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD_REMOTE);
5466 mb->method->save_lmf = 1;
5468 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5469 sig->params [0] = &mono_defaults.object_class->byval_arg;
5470 sig->params [1] = &mono_defaults.int_class->byval_arg;
5471 sig->params [2] = &mono_defaults.int_class->byval_arg;
5472 sig->params [3] = &klass->byval_arg;
5473 sig->ret = &mono_defaults.void_class->byval_arg;
5475 mono_mb_emit_ldarg (mb, 0);
5476 mono_mb_emit_ldarg (mb, 1);
5477 mono_mb_emit_ldarg (mb, 2);
5478 mono_mb_emit_ldarg (mb, 3);
5480 if (klass->valuetype)
5481 mono_mb_emit_op (mb, CEE_BOX, klass);
5483 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5484 csig->params [0] = &mono_defaults.object_class->byval_arg;
5485 csig->params [1] = &mono_defaults.int_class->byval_arg;
5486 csig->params [2] = &mono_defaults.int_class->byval_arg;
5487 csig->params [3] = &klass->byval_arg;
5488 csig->ret = &mono_defaults.void_class->byval_arg;
5491 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5492 emit_thread_interrupt_checkpoint (mb);
5494 mono_mb_emit_byte (mb, CEE_RET);
5496 res = mono_mb_create_and_cache (cache, klass,
5497 mb, sig, sig->param_count + 16);
5504 * mono_marshal_get_stfld_wrapper:
5505 * @type: the type of the field
5507 * This method generates a function which can be use to store a field with type
5508 * @type. The generated function has the following signature:
5509 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5512 mono_marshal_get_stfld_wrapper (MonoType *type)
5514 MonoMethodSignature *sig;
5515 MonoMethodBuilder *mb;
5522 type = mono_type_get_underlying_type (type);
5526 if (type->type == MONO_TYPE_SZARRAY) {
5527 klass = mono_defaults.array_class;
5528 } else if (type->type == MONO_TYPE_VALUETYPE) {
5529 klass = type->data.klass;
5530 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5531 klass = mono_defaults.object_class;
5532 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5533 klass = mono_defaults.int_class;
5534 } else if (t == MONO_TYPE_GENERICINST) {
5535 if (mono_type_generic_inst_is_valuetype (type))
5536 klass = mono_class_from_mono_type (type);
5538 klass = mono_defaults.object_class;
5540 klass = mono_class_from_mono_type (type);
5543 klass = mono_defaults.int_class;
5546 cache = klass->image->stfld_wrapper_cache;
5547 if ((res = mono_marshal_find_in_cache (cache, klass)))
5550 /* we add the %p pointer value of klass because class names are not unique */
5551 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5552 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5555 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5556 sig->params [0] = &mono_defaults.object_class->byval_arg;
5557 sig->params [1] = &mono_defaults.int_class->byval_arg;
5558 sig->params [2] = &mono_defaults.int_class->byval_arg;
5559 sig->params [3] = &mono_defaults.int_class->byval_arg;
5560 sig->params [4] = &klass->byval_arg;
5561 sig->ret = &mono_defaults.void_class->byval_arg;
5563 mono_mb_emit_ldarg (mb, 0);
5564 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5566 mono_mb_emit_ldarg (mb, 0);
5567 mono_mb_emit_ldarg (mb, 1);
5568 mono_mb_emit_ldarg (mb, 2);
5569 mono_mb_emit_ldarg (mb, 4);
5571 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5573 mono_mb_emit_byte (mb, CEE_RET);
5575 mono_mb_patch_branch (mb, pos);
5577 mono_mb_emit_ldarg (mb, 0);
5578 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5579 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5580 mono_mb_emit_ldarg (mb, 3);
5581 mono_mb_emit_byte (mb, CEE_ADD);
5582 mono_mb_emit_ldarg (mb, 4);
5587 case MONO_TYPE_BOOLEAN:
5588 case MONO_TYPE_CHAR:
5597 case MONO_TYPE_ARRAY:
5598 case MONO_TYPE_SZARRAY:
5599 case MONO_TYPE_OBJECT:
5600 case MONO_TYPE_CLASS:
5601 case MONO_TYPE_STRING:
5605 case MONO_TYPE_FNPTR:
5606 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5608 case MONO_TYPE_VALUETYPE:
5609 g_assert (!klass->enumtype);
5610 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5612 case MONO_TYPE_GENERICINST:
5613 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5616 g_warning ("type %x not implemented", type->type);
5617 g_assert_not_reached ();
5620 mono_mb_emit_byte (mb, CEE_RET);
5622 res = mono_mb_create_and_cache (cache, klass,
5623 mb, sig, sig->param_count + 16);
5630 * generates IL code for the icall wrapper (the generated method
5631 * calls the unmanaged code in func)
5634 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
5636 MonoMethodSignature *csig;
5637 MonoMethodBuilder *mb;
5641 g_assert (sig->pinvoke);
5643 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5645 mb->method->save_lmf = 1;
5647 /* we copy the signature, so that we can modify it */
5650 mono_mb_emit_byte (mb, CEE_LDARG_0);
5652 for (i = 0; i < sig->param_count; i++)
5653 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5655 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5656 emit_thread_interrupt_checkpoint (mb);
5657 mono_mb_emit_byte (mb, CEE_RET);
5659 csig = signature_dup (mono_defaults.corlib, sig);
5661 if (csig->call_convention == MONO_CALL_VARARG)
5662 csig->call_convention = 0;
5664 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5671 MonoMethodBuilder *mb;
5672 MonoMethodSignature *sig;
5673 MonoMethodPInvoke *piinfo;
5674 int *orig_conv_args; /* Locals containing the original values of byref args */
5676 MonoClass *retobj_class;
5677 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5678 MonoImage *image; /* The image to use for looking up custom marshallers */
5679 } EmitMarshalContext;
5683 * This is invoked to convert arguments from the current types to
5684 * the underlying types expected by the platform routine. If required,
5685 * the methods create a temporary variable with the proper type, and return
5686 * the location for it (either the passed argument, or the newly allocated
5689 MARSHAL_ACTION_CONV_IN,
5692 * This operation is called to push the actual value that was optionally
5693 * converted on the first stage
5695 MARSHAL_ACTION_PUSH,
5698 * Convert byref arguments back or free resources allocated during the
5701 MARSHAL_ACTION_CONV_OUT,
5704 * The result from the unmanaged call is at the top of the stack when
5705 * this action is invoked. The result should be stored in the
5706 * third local variable slot.
5708 MARSHAL_ACTION_CONV_RESULT,
5710 MARSHAL_ACTION_MANAGED_CONV_IN,
5711 MARSHAL_ACTION_MANAGED_CONV_OUT,
5712 MARSHAL_ACTION_MANAGED_CONV_RESULT
5716 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5717 MonoMarshalSpec *spec,
5718 int conv_arg, MonoType **conv_arg_type,
5719 MarshalAction action)
5723 static MonoClass *ICustomMarshaler = NULL;
5724 static MonoMethod *cleanup_native, *cleanup_managed;
5725 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5726 MonoMethod *get_instance;
5727 MonoMethodBuilder *mb = m->mb;
5728 char *exception_msg = NULL;
5732 if (!ICustomMarshaler) {
5733 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5734 g_assert (ICustomMarshaler);
5736 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5737 g_assert (cleanup_native);
5738 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5739 g_assert (cleanup_managed);
5740 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5741 g_assert (marshal_managed_to_native);
5742 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5743 g_assert (marshal_native_to_managed);
5746 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5747 g_assert (mtype != NULL);
5748 mklass = mono_class_from_mono_type (mtype);
5749 g_assert (mklass != NULL);
5751 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5752 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5754 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5756 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5757 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5758 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5759 (get_sig->params [0]->type != MONO_TYPE_STRING))
5760 get_instance = NULL;
5764 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);
5766 /* Throw exception and emit compensation code if neccesary */
5767 if (exception_msg) {
5769 case MARSHAL_ACTION_CONV_IN:
5770 case MARSHAL_ACTION_CONV_RESULT:
5771 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5772 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5773 mono_mb_emit_byte (mb, CEE_POP);
5775 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5776 g_free (exception_msg);
5779 case MARSHAL_ACTION_PUSH:
5780 mono_mb_emit_byte (mb, CEE_LDNULL);
5788 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5789 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5792 case MARSHAL_ACTION_CONV_IN:
5794 case MONO_TYPE_CLASS:
5795 case MONO_TYPE_OBJECT:
5796 case MONO_TYPE_STRING:
5797 case MONO_TYPE_ARRAY:
5798 case MONO_TYPE_SZARRAY:
5799 case MONO_TYPE_VALUETYPE:
5803 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5804 g_assert_not_reached ();
5808 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5810 mono_mb_emit_byte (mb, CEE_LDNULL);
5811 mono_mb_emit_stloc (mb, conv_arg);
5813 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5816 /* Minic MS.NET behavior */
5817 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5820 /* Check for null */
5821 mono_mb_emit_ldarg (mb, argnum);
5823 mono_mb_emit_byte (mb, CEE_LDIND_I);
5824 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5826 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5828 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5830 mono_mb_emit_ldarg (mb, argnum);
5832 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5834 if (t->type == MONO_TYPE_VALUETYPE) {
5836 * Since we can't determine the type of the argument, we
5837 * will assume the unmanaged function takes a pointer.
5839 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5841 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5844 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5845 mono_mb_emit_stloc (mb, conv_arg);
5847 mono_mb_patch_branch (mb, pos2);
5850 case MARSHAL_ACTION_CONV_OUT:
5851 /* Check for null */
5852 mono_mb_emit_ldloc (mb, conv_arg);
5853 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5856 mono_mb_emit_ldarg (mb, argnum);
5858 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5860 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5862 mono_mb_emit_ldloc (mb, conv_arg);
5863 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5864 mono_mb_emit_byte (mb, CEE_STIND_REF);
5865 } else if (t->attrs &PARAM_ATTRIBUTE_OUT) {
5866 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5868 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5870 mono_mb_emit_ldloc (mb, conv_arg);
5871 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5873 /* We have nowhere to store the result */
5874 mono_mb_emit_byte (mb, CEE_POP);
5877 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5879 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5881 mono_mb_emit_ldloc (mb, conv_arg);
5883 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5885 mono_mb_patch_branch (mb, pos2);
5888 case MARSHAL_ACTION_PUSH:
5890 mono_mb_emit_ldloc_addr (mb, conv_arg);
5892 mono_mb_emit_ldloc (mb, conv_arg);
5895 case MARSHAL_ACTION_CONV_RESULT:
5896 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5898 mono_mb_emit_stloc (mb, 3);
5900 mono_mb_emit_ldloc (mb, 3);
5901 mono_mb_emit_stloc (mb, loc1);
5903 /* Check for null */
5904 mono_mb_emit_ldloc (mb, 3);
5905 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5907 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5909 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5910 mono_mb_emit_byte (mb, CEE_DUP);
5912 mono_mb_emit_ldloc (mb, 3);
5913 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5914 mono_mb_emit_stloc (mb, 3);
5916 mono_mb_emit_ldloc (mb, loc1);
5917 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5919 mono_mb_patch_branch (mb, pos2);
5922 case MARSHAL_ACTION_MANAGED_CONV_IN:
5923 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5925 mono_mb_emit_byte (mb, CEE_LDNULL);
5926 mono_mb_emit_stloc (mb, conv_arg);
5928 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5931 /* Check for null */
5932 mono_mb_emit_ldarg (mb, argnum);
5934 mono_mb_emit_byte (mb, CEE_LDIND_I);
5935 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5937 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5938 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5940 mono_mb_emit_ldarg (mb, argnum);
5942 mono_mb_emit_byte (mb, CEE_LDIND_I);
5944 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5945 mono_mb_emit_stloc (mb, conv_arg);
5947 mono_mb_patch_branch (mb, pos2);
5950 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5951 g_assert (!t->byref);
5953 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5955 mono_mb_emit_stloc (mb, 3);
5957 mono_mb_emit_ldloc (mb, 3);
5958 mono_mb_emit_stloc (mb, loc1);
5960 /* Check for null */
5961 mono_mb_emit_ldloc (mb, 3);
5962 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5964 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5965 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5966 mono_mb_emit_byte (mb, CEE_DUP);
5968 mono_mb_emit_ldloc (mb, 3);
5969 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5970 mono_mb_emit_stloc (mb, 3);
5972 mono_mb_emit_ldloc (mb, loc1);
5973 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5975 mono_mb_patch_branch (mb, pos2);
5978 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5980 /* Check for null */
5981 mono_mb_emit_ldloc (mb, conv_arg);
5982 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5985 mono_mb_emit_ldarg (mb, argnum);
5987 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5989 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5991 mono_mb_emit_ldloc (mb, conv_arg);
5992 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5993 mono_mb_emit_byte (mb, CEE_STIND_I);
5996 /* Call CleanUpManagedData */
5997 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5999 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6001 mono_mb_emit_ldloc (mb, conv_arg);
6002 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6004 mono_mb_patch_branch (mb, pos2);
6008 g_assert_not_reached ();
6015 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6016 MonoMarshalSpec *spec,
6017 int conv_arg, MonoType **conv_arg_type,
6018 MarshalAction action)
6020 MonoMethodBuilder *mb = m->mb;
6023 case MARSHAL_ACTION_CONV_IN: {
6024 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6026 g_assert (t->type == MONO_TYPE_OBJECT);
6027 g_assert (!t->byref);
6029 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6030 mono_mb_emit_ldarg (mb, argnum);
6031 mono_mb_emit_icon (mb, encoding);
6032 mono_mb_emit_icon (mb, t->attrs);
6033 mono_mb_emit_icall (mb, mono_marshal_asany);
6034 mono_mb_emit_stloc (mb, conv_arg);
6038 case MARSHAL_ACTION_PUSH:
6039 mono_mb_emit_ldloc (mb, conv_arg);
6042 case MARSHAL_ACTION_CONV_OUT: {
6043 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6045 mono_mb_emit_ldarg (mb, argnum);
6046 mono_mb_emit_ldloc (mb, conv_arg);
6047 mono_mb_emit_icon (mb, encoding);
6048 mono_mb_emit_icon (mb, t->attrs);
6049 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6054 g_assert_not_reached ();
6061 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6062 MonoMarshalSpec *spec,
6063 int conv_arg, MonoType **conv_arg_type,
6064 MarshalAction action)
6066 MonoMethodBuilder *mb = m->mb;
6070 klass = t->data.klass;
6073 case MARSHAL_ACTION_CONV_IN:
6074 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6075 klass->blittable || klass->enumtype)
6078 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6080 /* store the address of the source into local variable 0 */
6082 mono_mb_emit_ldarg (mb, argnum);
6084 mono_mb_emit_ldarg_addr (mb, argnum);
6086 mono_mb_emit_stloc (mb, 0);
6088 /* allocate space for the native struct and
6089 * store the address into local variable 1 (dest) */
6090 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6091 mono_mb_emit_byte (mb, CEE_PREFIX1);
6092 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6093 mono_mb_emit_stloc (mb, conv_arg);
6096 mono_mb_emit_ldloc (mb, 0);
6097 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6100 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6102 mono_mb_emit_ldloc (mb, conv_arg);
6103 mono_mb_emit_stloc (mb, 1);
6105 /* emit valuetype conversion code */
6106 emit_struct_conv (mb, klass, FALSE);
6110 mono_mb_patch_branch (mb, pos);
6113 case MARSHAL_ACTION_PUSH:
6114 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6116 g_assert (!t->byref);
6118 /* Have to change the signature since the vtype is passed byref */
6119 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6121 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6122 klass->blittable || klass->enumtype)
6123 mono_mb_emit_ldarg_addr (mb, argnum);
6125 mono_mb_emit_ldloc (mb, conv_arg);
6129 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6130 klass->blittable || klass->enumtype) {
6131 mono_mb_emit_ldarg (mb, argnum);
6134 mono_mb_emit_ldloc (mb, conv_arg);
6136 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6137 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6141 case MARSHAL_ACTION_CONV_OUT:
6142 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6143 klass->blittable || klass->enumtype)
6147 /* dst = argument */
6148 mono_mb_emit_ldarg (mb, argnum);
6149 mono_mb_emit_stloc (mb, 1);
6151 mono_mb_emit_ldloc (mb, 1);
6152 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6154 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6155 /* src = tmp_locals [i] */
6156 mono_mb_emit_ldloc (mb, conv_arg);
6157 mono_mb_emit_stloc (mb, 0);
6159 /* emit valuetype conversion code */
6160 emit_struct_conv (mb, klass, TRUE);
6164 emit_struct_free (mb, klass, conv_arg);
6167 mono_mb_patch_branch (mb, pos);
6170 case MARSHAL_ACTION_CONV_RESULT:
6171 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6173 mono_mb_emit_stloc (mb, 3);
6176 /* load pointer to returned value type */
6177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6178 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6179 /* store the address of the source into local variable 0 */
6180 mono_mb_emit_stloc (mb, 0);
6182 mono_mb_emit_ldloc_addr (mb, 3);
6183 mono_mb_emit_stloc (mb, 1);
6185 /* emit valuetype conversion code */
6186 emit_struct_conv (mb, klass, TRUE);
6189 case MARSHAL_ACTION_MANAGED_CONV_IN:
6190 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6191 klass->blittable || klass->enumtype) {
6196 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6198 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6202 mono_mb_emit_ldarg (mb, argnum);
6204 mono_mb_emit_ldarg_addr (mb, argnum);
6205 mono_mb_emit_stloc (mb, 0);
6208 mono_mb_emit_ldloc (mb, 0);
6209 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6212 mono_mb_emit_ldloc_addr (mb, conv_arg);
6213 mono_mb_emit_stloc (mb, 1);
6215 /* emit valuetype conversion code */
6216 emit_struct_conv (mb, klass, TRUE);
6219 mono_mb_patch_branch (mb, pos);
6222 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6223 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6224 klass->blittable || klass->enumtype) {
6228 /* Check for null */
6229 mono_mb_emit_ldarg (mb, argnum);
6230 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6233 mono_mb_emit_ldloc_addr (mb, conv_arg);
6234 mono_mb_emit_stloc (mb, 0);
6237 mono_mb_emit_ldarg (mb, argnum);
6238 mono_mb_emit_stloc (mb, 1);
6240 /* emit valuetype conversion code */
6241 emit_struct_conv (mb, klass, FALSE);
6243 mono_mb_patch_branch (mb, pos2);
6246 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6247 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6248 klass->blittable || klass->enumtype) {
6249 mono_mb_emit_stloc (mb, 3);
6254 /* load pointer to returned value type */
6255 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6256 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6258 /* store the address of the source into local variable 0 */
6259 mono_mb_emit_stloc (mb, 0);
6260 /* allocate space for the native struct and
6261 * store the address into dst_ptr */
6262 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6263 m->retobj_class = klass;
6264 g_assert (m->retobj_var);
6265 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6266 mono_mb_emit_byte (mb, CEE_CONV_I);
6267 mono_mb_emit_icall (mb, mono_marshal_alloc);
6268 mono_mb_emit_stloc (mb, 1);
6269 mono_mb_emit_ldloc (mb, 1);
6270 mono_mb_emit_stloc (mb, m->retobj_var);
6272 /* emit valuetype conversion code */
6273 emit_struct_conv (mb, klass, FALSE);
6277 g_assert_not_reached ();
6284 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6285 MonoMarshalSpec *spec,
6286 int conv_arg, MonoType **conv_arg_type,
6287 MarshalAction action)
6289 MonoMethodBuilder *mb = m->mb;
6290 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6291 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6295 case MARSHAL_ACTION_CONV_IN:
6296 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6297 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6300 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6303 mono_mb_emit_ldarg (mb, argnum);
6304 mono_mb_emit_byte (mb, CEE_LDIND_I);
6306 mono_mb_emit_ldarg (mb, argnum);
6310 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6311 MonoException *exc = mono_get_exception_not_implemented (msg);
6314 mono_raise_exception (exc);
6317 mono_mb_emit_icall (mb, conv_to_icall (conv));
6319 mono_mb_emit_stloc (mb, conv_arg);
6322 case MARSHAL_ACTION_CONV_OUT:
6323 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6324 mono_mb_emit_ldarg (mb, argnum);
6325 mono_mb_emit_ldloc (mb, conv_arg);
6326 if (conv == MONO_MARSHAL_CONV_STR_BSTR) {
6327 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_BSTR_STR));
6328 // BSTRs always need freed
6329 mono_mb_emit_ldloc (mb, conv_arg);
6330 mono_mb_emit_icall (mb, mono_free_bstr);
6333 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
6334 mono_mb_emit_byte (mb, CEE_STIND_REF);
6336 if (mono_marshal_need_free (t, m->piinfo, spec)) {
6337 mono_mb_emit_ldloc (mb, conv_arg);
6338 if (conv == MONO_MARSHAL_CONV_STR_BSTR)
6339 mono_mb_emit_icall (mb, mono_free_bstr);
6341 mono_mb_emit_icall (mb, mono_marshal_free);
6346 case MARSHAL_ACTION_PUSH:
6348 mono_mb_emit_ldloc_addr (mb, conv_arg);
6350 mono_mb_emit_ldloc (mb, conv_arg);
6353 case MARSHAL_ACTION_CONV_RESULT:
6354 mono_mb_emit_stloc (mb, 0);
6356 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6358 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6359 mono_mb_emit_exception_marshal_directive (mb, msg);
6363 mono_mb_emit_ldloc (mb, 0);
6364 mono_mb_emit_icall (mb, conv_to_icall (conv));
6365 mono_mb_emit_stloc (mb, 3);
6367 /* free the string */
6368 mono_mb_emit_ldloc (mb, 0);
6369 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6370 mono_mb_emit_icall (mb, mono_free_bstr);
6372 mono_mb_emit_icall (mb, g_free);
6375 case MARSHAL_ACTION_MANAGED_CONV_IN:
6381 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6382 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6384 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6386 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6387 mono_mb_emit_exception_marshal_directive (mb, msg);
6391 mono_mb_emit_ldarg (mb, argnum);
6392 mono_mb_emit_icall (mb, conv_to_icall (conv));
6393 mono_mb_emit_stloc (mb, conv_arg);
6396 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6397 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6398 /* We need to make a copy so the caller is able to free it */
6399 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6401 mono_mb_emit_icall (mb, conv_to_icall (conv));
6402 mono_mb_emit_stloc (mb, 3);
6406 g_assert_not_reached ();
6413 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6414 MonoMarshalSpec *spec, int conv_arg,
6415 MonoType **conv_arg_type, MarshalAction action)
6417 MonoMethodBuilder *mb = m->mb;
6420 case MARSHAL_ACTION_CONV_IN: {
6421 MonoType *intptr_type;
6422 int dar_release_slot, pos;
6424 intptr_type = &mono_defaults.int_class->byval_arg;
6425 conv_arg = mono_mb_add_local (mb, intptr_type);
6426 *conv_arg_type = intptr_type;
6428 if (!sh_dangerous_add_ref)
6429 init_safe_handle ();
6431 mono_mb_emit_ldarg (mb, argnum);
6432 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6433 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6435 mono_mb_patch_branch (mb, pos);
6438 * My tests in show that ref SafeHandles are not really
6439 * passed as ref objects. Instead a NULL is passed as the
6442 mono_mb_emit_icon (mb, 0);
6443 mono_mb_emit_stloc (mb, conv_arg);
6447 /* Create local to hold the ref parameter to DangerousAddRef */
6448 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6450 /* set release = false; */
6451 mono_mb_emit_icon (mb, 0);
6452 mono_mb_emit_stloc (mb, dar_release_slot);
6454 /* safehandle.DangerousAddRef (ref release) */
6455 mono_mb_emit_ldarg (mb, argnum);
6456 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6457 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6459 /* Pull the handle field from SafeHandle */
6460 mono_mb_emit_ldarg (mb, argnum);
6461 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6462 mono_mb_emit_byte (mb, CEE_LDIND_I);
6463 mono_mb_emit_stloc (mb, conv_arg);
6468 case MARSHAL_ACTION_PUSH:
6470 mono_mb_emit_ldloc_addr (mb, conv_arg);
6472 mono_mb_emit_ldloc (mb, conv_arg);
6475 case MARSHAL_ACTION_CONV_OUT: {
6476 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6477 int dar_release_slot = conv_arg + 1;
6480 if (!sh_dangerous_release)
6481 init_safe_handle ();
6487 * My tests indicate that ref SafeHandles parameters are not actually
6488 * passed by ref, but instead a new Handle is created regardless of
6489 * whether a change happens in the unmanaged side.
6491 * Also, the Handle is created before calling into unmanaged code,
6492 * but we do not support that mechanism (getting to the original
6493 * handle) and it makes no difference where we create this
6495 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6497 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6500 /* refval = new SafeHandleDerived ()*/
6501 mono_mb_emit_ldarg (mb, argnum);
6502 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6503 mono_mb_emit_byte (mb, CEE_STIND_REF);
6505 /* refval.handle = returned_handle */
6506 mono_mb_emit_ldarg (mb, argnum);
6507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6508 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6509 mono_mb_emit_ldloc (mb, conv_arg);
6510 mono_mb_emit_byte (mb, CEE_STIND_I);
6512 mono_mb_emit_ldloc (mb, dar_release_slot);
6513 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6514 mono_mb_emit_ldarg (mb, argnum);
6515 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6516 mono_mb_patch_addr (mb, label_next, mb->pos - (label_next + 4));
6521 case MARSHAL_ACTION_CONV_RESULT: {
6522 MonoMethod *ctor = NULL;
6523 int intptr_handle_slot;
6525 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6526 mono_mb_emit_byte (mb, CEE_POP);
6527 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6531 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6533 mono_mb_emit_byte (mb, CEE_POP);
6534 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6537 /* Store the IntPtr results into a local */
6538 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6539 mono_mb_emit_stloc (mb, intptr_handle_slot);
6541 /* Create return value */
6542 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6543 mono_mb_emit_stloc (mb, 3);
6545 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6546 mono_mb_emit_ldloc (mb, 3);
6547 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6548 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6549 mono_mb_emit_byte (mb, CEE_STIND_I);
6553 case MARSHAL_ACTION_MANAGED_CONV_IN:
6554 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6557 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6558 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6561 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6562 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6565 printf ("Unhandled case for MarshalAction: %d\n", action);
6572 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6573 MonoMarshalSpec *spec, int conv_arg,
6574 MonoType **conv_arg_type, MarshalAction action)
6576 MonoMethodBuilder *mb = m->mb;
6579 case MARSHAL_ACTION_CONV_IN: {
6580 MonoType *intptr_type;
6582 intptr_type = &mono_defaults.int_class->byval_arg;
6583 conv_arg = mono_mb_add_local (mb, intptr_type);
6584 *conv_arg_type = intptr_type;
6587 mono_mb_emit_exception_marshal_directive (mb,
6588 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6591 mono_mb_emit_ldarg_addr (mb, argnum);
6592 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6593 mono_mb_emit_byte (mb, CEE_ADD);
6594 mono_mb_emit_byte (mb, CEE_LDIND_I);
6595 mono_mb_emit_stloc (mb, conv_arg);
6599 case MARSHAL_ACTION_PUSH:
6600 mono_mb_emit_ldloc (mb, conv_arg);
6603 case MARSHAL_ACTION_CONV_OUT: {
6604 /* no resource release required */
6608 case MARSHAL_ACTION_CONV_RESULT: {
6609 mono_mb_emit_exception_marshal_directive (mb,
6610 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6614 case MARSHAL_ACTION_MANAGED_CONV_IN:
6615 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6618 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6619 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6622 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6623 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6626 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6633 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6634 MonoMarshalSpec *spec,
6635 int conv_arg, MonoType **conv_arg_type,
6636 MarshalAction action)
6638 MonoMethodBuilder *mb = m->mb;
6639 MonoClass *klass = t->data.klass;
6642 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6643 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6647 case MARSHAL_ACTION_CONV_IN:
6648 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6649 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6651 m->orig_conv_args [argnum] = 0;
6653 if (klass->delegate) {
6654 g_assert (!t->byref);
6655 mono_mb_emit_ldarg (mb, argnum);
6656 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6657 mono_mb_emit_stloc (mb, conv_arg);
6658 } else if (klass == mono_defaults.stringbuilder_class) {
6659 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6660 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6662 g_assert (!t->byref);
6663 mono_mb_emit_ldarg (mb, argnum);
6666 mono_mb_emit_icall (mb, conv_to_icall (conv));
6668 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6669 MonoException *exc = mono_get_exception_not_implemented (msg);
6672 mono_raise_exception (exc);
6675 mono_mb_emit_stloc (mb, conv_arg);
6676 } else if (klass->blittable) {
6677 mono_mb_emit_byte (mb, CEE_LDNULL);
6678 mono_mb_emit_stloc (mb, conv_arg);
6680 mono_mb_emit_ldarg (mb, argnum);
6681 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6683 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6685 mono_mb_emit_stloc (mb, conv_arg);
6687 mono_mb_patch_branch (mb, pos);
6690 mono_mb_emit_byte (mb, CEE_LDNULL);
6691 mono_mb_emit_stloc (mb, conv_arg);
6694 /* we dont need any conversions for out parameters */
6695 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6698 mono_mb_emit_ldarg (mb, argnum);
6699 mono_mb_emit_byte (mb, CEE_LDIND_I);
6702 mono_mb_emit_ldarg (mb, argnum);
6703 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6704 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6707 /* store the address of the source into local variable 0 */
6708 mono_mb_emit_stloc (mb, 0);
6709 mono_mb_emit_ldloc (mb, 0);
6710 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6712 /* allocate space for the native struct and store the address */
6713 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6714 mono_mb_emit_byte (mb, CEE_PREFIX1);
6715 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6716 mono_mb_emit_stloc (mb, conv_arg);
6719 /* Need to store the original buffer so we can free it later */
6720 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6721 mono_mb_emit_ldloc (mb, conv_arg);
6722 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6725 /* set the src_ptr */
6726 mono_mb_emit_ldloc (mb, 0);
6727 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6728 mono_mb_emit_stloc (mb, 0);
6731 mono_mb_emit_ldloc (mb, conv_arg);
6732 mono_mb_emit_stloc (mb, 1);
6734 /* emit valuetype conversion code */
6735 emit_struct_conv (mb, klass, FALSE);
6737 mono_mb_patch_branch (mb, pos);
6741 case MARSHAL_ACTION_CONV_OUT:
6742 if (klass == mono_defaults.stringbuilder_class) {
6744 MonoMarshalNative encoding;
6745 MonoMarshalConv conv;
6747 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6748 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6750 g_assert (!t->byref);
6751 g_assert (encoding != -1);
6753 mono_mb_emit_ldarg (mb, argnum);
6754 mono_mb_emit_ldloc (mb, conv_arg);
6756 mono_mb_emit_icall (mb, conv_to_icall (conv));
6759 mono_mb_emit_ldloc (mb, conv_arg);
6760 mono_mb_emit_icall (mb, mono_marshal_free);
6765 if (klass->delegate)
6768 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6769 /* allocate a new object */
6770 mono_mb_emit_ldarg (mb, argnum);
6771 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6772 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6773 mono_mb_emit_byte (mb, CEE_STIND_REF);
6776 /* dst = *argument */
6777 mono_mb_emit_ldarg (mb, argnum);
6780 mono_mb_emit_byte (mb, CEE_LDIND_I);
6782 mono_mb_emit_stloc (mb, 1);
6784 mono_mb_emit_ldloc (mb, 1);
6785 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6787 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6788 mono_mb_emit_ldloc (mb, 1);
6789 mono_mb_emit_icon (mb, sizeof (MonoObject));
6790 mono_mb_emit_byte (mb, CEE_ADD);
6791 mono_mb_emit_stloc (mb, 1);
6793 /* src = tmp_locals [i] */
6794 mono_mb_emit_ldloc (mb, conv_arg);
6795 mono_mb_emit_stloc (mb, 0);
6797 /* emit valuetype conversion code */
6798 emit_struct_conv (mb, t->data.klass, TRUE);
6800 /* Free the structure returned by the native code */
6801 emit_struct_free (mb, klass, conv_arg);
6803 if (m->orig_conv_args [argnum]) {
6805 * If the native function changed the pointer, then free
6806 * the original structure plus the new pointer.
6808 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6809 mono_mb_emit_ldloc (mb, conv_arg);
6810 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6812 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6813 g_assert (m->orig_conv_args [argnum]);
6815 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6818 mono_mb_emit_ldloc (mb, conv_arg);
6819 mono_mb_emit_icall (mb, g_free);
6821 mono_mb_patch_branch (mb, pos2);
6825 /* Free the original structure passed to native code */
6826 emit_struct_free (mb, klass, conv_arg);
6828 mono_mb_patch_branch (mb, pos);
6831 case MARSHAL_ACTION_PUSH:
6833 mono_mb_emit_ldloc_addr (mb, conv_arg);
6835 mono_mb_emit_ldloc (mb, conv_arg);
6838 case MARSHAL_ACTION_CONV_RESULT:
6839 if (klass->delegate) {
6840 g_assert (!t->byref);
6841 mono_mb_emit_stloc (mb, 0);
6842 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6843 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6844 mono_mb_emit_ldloc (mb, 0);
6845 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6846 mono_mb_emit_stloc (mb, 3);
6849 mono_mb_emit_stloc (mb, 0);
6851 /* Make a copy since emit_conv modifies local 0 */
6852 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6853 mono_mb_emit_ldloc (mb, 0);
6854 mono_mb_emit_stloc (mb, loc);
6856 mono_mb_emit_byte (mb, CEE_LDNULL);
6857 mono_mb_emit_stloc (mb, 3);
6859 mono_mb_emit_ldloc (mb, 0);
6860 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6862 /* allocate result object */
6864 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6865 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6866 mono_mb_emit_stloc (mb, 3);
6870 mono_mb_emit_ldloc (mb, 3);
6871 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6872 mono_mb_emit_stloc (mb, 1);
6874 /* emit conversion code */
6875 emit_struct_conv (mb, klass, TRUE);
6877 emit_struct_free (mb, klass, loc);
6879 /* Free the pointer allocated by unmanaged code */
6880 mono_mb_emit_ldloc (mb, loc);
6881 mono_mb_emit_icall (mb, g_free);
6882 mono_mb_patch_branch (mb, pos);
6886 case MARSHAL_ACTION_MANAGED_CONV_IN:
6887 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6889 if (klass->delegate) {
6890 g_assert (!t->byref);
6891 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6892 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6893 mono_mb_emit_ldarg (mb, argnum);
6894 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6895 mono_mb_emit_stloc (mb, conv_arg);
6899 /* The class can not have an automatic layout */
6900 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6901 mono_mb_emit_auto_layout_exception (mb, klass);
6905 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6906 mono_mb_emit_byte (mb, CEE_LDNULL);
6907 mono_mb_emit_stloc (mb, conv_arg);
6912 mono_mb_emit_ldarg (mb, argnum);
6916 /* Check for NULL and raise an exception */
6917 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6919 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6921 mono_mb_patch_branch (mb, pos2);
6922 mono_mb_emit_ldarg (mb, argnum);
6923 mono_mb_emit_byte (mb, CEE_LDIND_I);
6926 mono_mb_emit_stloc (mb, 0);
6928 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6929 mono_mb_emit_stloc (mb, conv_arg);
6931 mono_mb_emit_ldloc (mb, 0);
6932 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6934 /* Create and set dst */
6935 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6936 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6937 mono_mb_emit_stloc (mb, conv_arg);
6938 mono_mb_emit_ldloc (mb, conv_arg);
6939 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6940 mono_mb_emit_stloc (mb, 1);
6942 /* emit valuetype conversion code */
6943 emit_struct_conv (mb, klass, TRUE);
6945 mono_mb_patch_branch (mb, pos);
6948 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6950 /* Check for null */
6951 mono_mb_emit_ldloc (mb, conv_arg);
6952 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6953 mono_mb_emit_ldarg (mb, argnum);
6954 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6955 mono_mb_emit_byte (mb, CEE_STIND_REF);
6956 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6958 mono_mb_patch_branch (mb, pos);
6961 mono_mb_emit_ldloc (mb, conv_arg);
6962 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6963 mono_mb_emit_stloc (mb, 0);
6965 /* Allocate and set dest */
6966 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6967 mono_mb_emit_byte (mb, CEE_CONV_I);
6968 mono_mb_emit_icall (mb, mono_marshal_alloc);
6969 mono_mb_emit_stloc (mb, 1);
6971 /* Update argument pointer */
6972 mono_mb_emit_ldarg (mb, argnum);
6973 mono_mb_emit_ldloc (mb, 1);
6974 mono_mb_emit_byte (mb, CEE_STIND_I);
6976 /* emit valuetype conversion code */
6977 emit_struct_conv (mb, klass, FALSE);
6979 mono_mb_patch_branch (mb, pos2);
6981 /* byval [Out] marshalling */
6983 /* FIXME: Handle null */
6986 mono_mb_emit_ldloc (mb, conv_arg);
6987 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6988 mono_mb_emit_stloc (mb, 0);
6991 mono_mb_emit_ldarg (mb, argnum);
6992 mono_mb_emit_stloc (mb, 1);
6994 /* emit valuetype conversion code */
6995 emit_struct_conv (mb, klass, FALSE);
6999 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7000 if (klass->delegate) {
7001 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7002 mono_mb_emit_stloc (mb, 3);
7006 /* The class can not have an automatic layout */
7007 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7008 mono_mb_emit_auto_layout_exception (mb, klass);
7012 mono_mb_emit_stloc (mb, 0);
7013 /* Check for null */
7014 mono_mb_emit_ldloc (mb, 0);
7015 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7016 mono_mb_emit_byte (mb, CEE_LDNULL);
7017 mono_mb_emit_stloc (mb, 3);
7018 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7020 mono_mb_patch_branch (mb, pos);
7023 mono_mb_emit_ldloc (mb, 0);
7024 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7025 mono_mb_emit_stloc (mb, 0);
7027 /* Allocate and set dest */
7028 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7029 mono_mb_emit_byte (mb, CEE_CONV_I);
7030 mono_mb_emit_icall (mb, mono_marshal_alloc);
7031 mono_mb_emit_byte (mb, CEE_DUP);
7032 mono_mb_emit_stloc (mb, 1);
7033 mono_mb_emit_stloc (mb, 3);
7035 emit_struct_conv (mb, klass, FALSE);
7037 mono_mb_patch_branch (mb, pos2);
7041 g_assert_not_reached ();
7048 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
7049 MonoMarshalSpec *spec,
7050 int conv_arg, MonoType **conv_arg_type,
7051 MarshalAction action)
7053 MonoMethodBuilder *mb = m->mb;
7054 MonoClass *klass = t->data.klass;
7055 static MonoMethod* get_object_for_iunknown = NULL;
7056 static MonoMethod* get_iunknown_for_object_internal = NULL;
7057 static MonoMethod* get_com_interface_for_object_internal = NULL;
7058 static MonoMethod* get_idispatch_for_object_internal = NULL;
7059 static MonoMethod* marshal_release = NULL;
7060 static MonoMethod* AddRef = NULL;
7061 if (!get_object_for_iunknown)
7062 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
7063 if (!get_iunknown_for_object_internal)
7064 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
7065 if (!get_idispatch_for_object_internal)
7066 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
7067 if (!get_com_interface_for_object_internal)
7068 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
7069 if (!marshal_release)
7070 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
7072 /* COM types are initialized lazily */
7073 mono_init_com_types ();
7076 case MARSHAL_ACTION_CONV_IN: {
7077 guint32 pos_null = 0;
7079 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7080 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7082 mono_mb_emit_ptr (mb, NULL);
7083 mono_mb_emit_stloc (mb, conv_arg);
7085 /* we dont need any conversions for out parameters */
7086 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7089 mono_mb_emit_ldarg (mb, argnum);
7091 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7092 /* if null just break, conv arg was already inited to 0 */
7093 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7095 mono_mb_emit_ldarg (mb, argnum);
7097 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7099 if (klass && klass != mono_defaults.object_class) {
7100 mono_mb_emit_ptr (mb, t);
7101 mono_mb_emit_icall (mb, type_from_handle);
7102 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7104 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7105 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7106 else if (spec->native == MONO_NATIVE_IDISPATCH)
7107 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7108 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7109 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7111 g_assert_not_reached ();
7112 mono_mb_emit_stloc (mb, conv_arg);
7113 mono_mb_patch_short_branch (mb, pos_null);
7117 case MARSHAL_ACTION_CONV_OUT: {
7118 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
7120 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7121 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7123 mono_mb_emit_ldarg (mb, argnum);
7124 mono_mb_emit_byte (mb, CEE_LDNULL);
7125 mono_mb_emit_byte (mb, CEE_STIND_REF);
7127 mono_mb_emit_ldloc (mb, conv_arg);
7128 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7130 mono_mb_emit_ldloc (mb, conv_arg);
7131 mono_mb_emit_icon (mb, TRUE);
7132 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7133 mono_mb_emit_stloc (mb, ccw_obj);
7134 mono_mb_emit_ldloc (mb, ccw_obj);
7135 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7137 mono_mb_emit_ldarg (mb, argnum);
7138 mono_mb_emit_ldloc (mb, conv_arg);
7139 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7141 if (klass && klass != mono_defaults.object_class)
7142 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7143 mono_mb_emit_byte (mb, CEE_STIND_REF);
7145 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7147 /* is already managed object */
7148 mono_mb_patch_short_branch (mb, pos_ccw);
7149 mono_mb_emit_ldarg (mb, argnum);
7150 mono_mb_emit_ldloc (mb, ccw_obj);
7152 if (klass && klass != mono_defaults.object_class)
7153 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7154 mono_mb_emit_byte (mb, CEE_STIND_REF);
7156 mono_mb_patch_short_branch (mb, pos_end);
7158 /* need to call Release to follow COM rules of ownership */
7159 mono_mb_emit_ldloc (mb, conv_arg);
7160 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7161 mono_mb_emit_byte (mb, CEE_POP);
7164 mono_mb_patch_short_branch (mb, pos_null);
7168 case MARSHAL_ACTION_PUSH:
7170 mono_mb_emit_ldloc_addr (mb, conv_arg);
7172 mono_mb_emit_ldloc (mb, conv_arg);
7175 case MARSHAL_ACTION_CONV_RESULT: {
7176 int ccw_obj, ret_ptr;
7177 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7178 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7179 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7181 /* store return value */
7182 mono_mb_emit_stloc (mb, ret_ptr);
7184 mono_mb_emit_ldloc (mb, ret_ptr);
7185 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7187 mono_mb_emit_ldloc (mb, ret_ptr);
7188 mono_mb_emit_icon (mb, TRUE);
7189 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7190 mono_mb_emit_stloc (mb, ccw_obj);
7191 mono_mb_emit_ldloc (mb, ccw_obj);
7192 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7194 mono_mb_emit_ldloc (mb, ret_ptr);
7195 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7197 if (klass && klass != mono_defaults.object_class)
7198 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7199 mono_mb_emit_stloc (mb, 3);
7201 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7203 /* is already managed object */
7204 mono_mb_patch_short_branch (mb, pos_ccw);
7205 mono_mb_emit_ldloc (mb, ccw_obj);
7207 if (klass && klass != mono_defaults.object_class)
7208 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7209 mono_mb_emit_stloc (mb, 3);
7211 mono_mb_patch_short_branch (mb, pos_end);
7213 /* need to call Release to follow COM rules of ownership */
7214 mono_mb_emit_ldloc (mb, ret_ptr);
7215 mono_mb_emit_managed_call (mb, marshal_release, NULL);
7216 mono_mb_emit_byte (mb, CEE_POP);
7219 mono_mb_patch_short_branch (mb, pos_null);
7223 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7225 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
7226 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7228 klass = mono_class_from_mono_type (t);
7229 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7230 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7232 mono_mb_emit_byte (mb, CEE_LDNULL);
7233 mono_mb_emit_stloc (mb, conv_arg);
7234 if (t->attrs & PARAM_ATTRIBUTE_OUT)
7237 mono_mb_emit_ldarg (mb, argnum);
7239 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7240 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7242 mono_mb_emit_ldarg (mb, argnum);
7244 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7245 mono_mb_emit_icon (mb, TRUE);
7246 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
7247 mono_mb_emit_stloc (mb, ccw_obj);
7248 mono_mb_emit_ldloc (mb, ccw_obj);
7249 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
7252 mono_mb_emit_ldarg (mb, argnum);
7254 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7255 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
7257 if (klass && klass != mono_defaults.object_class)
7258 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7259 mono_mb_emit_stloc (mb, conv_arg);
7260 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
7262 /* is already managed object */
7263 mono_mb_patch_short_branch (mb, pos_ccw);
7264 mono_mb_emit_ldloc (mb, ccw_obj);
7265 if (klass && klass != mono_defaults.object_class)
7266 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
7267 mono_mb_emit_stloc (mb, conv_arg);
7269 mono_mb_patch_short_branch (mb, pos_end);
7271 mono_mb_patch_short_branch (mb, pos_null);
7275 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7276 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
7277 guint32 pos_null = 0;
7280 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7282 mono_mb_emit_ldloc (mb, conv_arg);
7283 /* if null just break, conv arg was already inited to 0 */
7284 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7286 /* to store later */
7287 mono_mb_emit_ldarg (mb, argnum);
7288 mono_mb_emit_ldloc (mb, conv_arg);
7289 if (klass && klass != mono_defaults.object_class) {
7290 mono_mb_emit_ptr (mb, t);
7291 mono_mb_emit_icall (mb, type_from_handle);
7292 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7294 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7295 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7296 else if (spec->native == MONO_NATIVE_IDISPATCH)
7297 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7298 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7299 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7301 g_assert_not_reached ();
7302 mono_mb_emit_byte (mb, CEE_STIND_I);
7304 mono_mb_emit_ldarg (mb, argnum);
7305 mono_mb_emit_byte (mb, CEE_LDIND_I);
7306 mono_mb_emit_managed_call (mb, AddRef, NULL);
7307 mono_mb_emit_byte (mb, CEE_POP);
7309 mono_mb_patch_short_branch (mb, pos_null);
7314 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7315 guint32 pos_null = 0;
7317 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7320 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7322 /* store return value */
7323 mono_mb_emit_stloc (mb, ccw_obj);
7325 mono_mb_emit_ldloc (mb, ccw_obj);
7327 /* if null just break, conv arg was already inited to 0 */
7328 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7330 /* to store later */
7331 mono_mb_emit_ldloc (mb, ccw_obj);
7332 if (klass && klass != mono_defaults.object_class) {
7333 mono_mb_emit_ptr (mb, t);
7334 mono_mb_emit_icall (mb, type_from_handle);
7335 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7337 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7338 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7339 else if (spec->native == MONO_NATIVE_IDISPATCH)
7340 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7341 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7342 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7344 g_assert_not_reached ();
7345 mono_mb_emit_stloc (mb, 3);
7346 mono_mb_emit_ldloc (mb, 3);
7348 mono_mb_emit_managed_call (mb, AddRef, NULL);
7349 mono_mb_emit_byte (mb, CEE_POP);
7351 mono_mb_patch_short_branch (mb, pos_null);
7356 g_assert_not_reached ();
7363 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7364 MonoMarshalSpec *spec,
7365 int conv_arg, MonoType **conv_arg_type,
7366 MarshalAction action)
7368 MonoMethodBuilder *mb = m->mb;
7369 static MonoMethod *get_object_for_native_variant = NULL;
7370 static MonoMethod *get_native_variant_for_object = NULL;
7372 mono_init_com_types ();
7374 if (!get_object_for_native_variant)
7375 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7376 g_assert (get_object_for_native_variant);
7378 if (!get_native_variant_for_object)
7379 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7380 g_assert (get_native_variant_for_object);
7383 case MARSHAL_ACTION_CONV_IN: {
7384 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7387 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7389 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7391 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7394 mono_mb_emit_ldarg (mb, argnum);
7396 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7397 mono_mb_emit_ldloc_addr (mb, conv_arg);
7398 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7402 case MARSHAL_ACTION_CONV_OUT: {
7403 static MonoMethod *variant_clear = NULL;
7406 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7407 g_assert (variant_clear);
7411 mono_mb_emit_ldarg (mb, argnum);
7412 mono_mb_emit_ldloc_addr (mb, conv_arg);
7413 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7414 mono_mb_emit_byte (mb, CEE_STIND_REF);
7417 mono_mb_emit_ldloc_addr (mb, conv_arg);
7418 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7422 case MARSHAL_ACTION_PUSH:
7424 mono_mb_emit_ldloc_addr (mb, conv_arg);
7426 mono_mb_emit_ldloc (mb, conv_arg);
7429 case MARSHAL_ACTION_CONV_RESULT: {
7430 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7431 mono_mb_emit_exception_marshal_directive (mb, msg);
7435 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7436 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7439 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7441 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7443 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7447 mono_mb_emit_ldarg (mb, argnum);
7449 mono_mb_emit_ldarg_addr (mb, argnum);
7450 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7451 mono_mb_emit_stloc (mb, conv_arg);
7455 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7457 mono_mb_emit_ldloc (mb, conv_arg);
7458 mono_mb_emit_ldarg (mb, argnum);
7459 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7464 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7465 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7466 mono_mb_emit_exception_marshal_directive (mb, msg);
7471 g_assert_not_reached ();
7478 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7479 MonoMarshalSpec *spec,
7480 int conv_arg, MonoType **conv_arg_type,
7481 MarshalAction action)
7483 MonoMethodBuilder *mb = m->mb;
7484 MonoClass *klass = mono_class_from_mono_type (t);
7485 gboolean need_convert, need_free;
7486 MonoMarshalNative encoding;
7488 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7491 case MARSHAL_ACTION_CONV_IN:
7492 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7493 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7495 if (klass->element_class->blittable) {
7496 mono_mb_emit_ldarg (mb, argnum);
7498 mono_mb_emit_byte (mb, CEE_LDIND_I);
7499 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7500 mono_mb_emit_stloc (mb, conv_arg);
7503 guint32 label1, label2, label3;
7504 int index_var, src_var, dest_ptr, esize;
7505 MonoMarshalConv conv;
7506 gboolean is_string = FALSE;
7508 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7510 eklass = klass->element_class;
7512 if (eklass == mono_defaults.string_class) {
7514 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7516 else if (eklass == mono_defaults.stringbuilder_class) {
7518 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7523 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7524 mono_mb_emit_ldarg (mb, argnum);
7526 mono_mb_emit_byte (mb, CEE_LDIND_I);
7527 mono_mb_emit_stloc (mb, src_var);
7530 mono_mb_emit_ldloc (mb, src_var);
7531 mono_mb_emit_stloc (mb, conv_arg);
7532 mono_mb_emit_ldloc (mb, src_var);
7533 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7537 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7538 MonoException *exc = mono_get_exception_not_implemented (msg);
7541 mono_raise_exception (exc);
7546 esize = sizeof (gpointer);
7548 esize = mono_class_native_size (eklass, NULL);
7550 /* allocate space for the native struct and store the address */
7551 mono_mb_emit_icon (mb, esize);
7552 mono_mb_emit_ldloc (mb, src_var);
7553 mono_mb_emit_byte (mb, CEE_LDLEN);
7555 if (eklass == mono_defaults.string_class) {
7556 /* Make the array bigger for the terminating null */
7557 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7558 mono_mb_emit_byte (mb, CEE_ADD);
7560 mono_mb_emit_byte (mb, CEE_MUL);
7561 mono_mb_emit_byte (mb, CEE_PREFIX1);
7562 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7563 mono_mb_emit_stloc (mb, conv_arg);
7565 mono_mb_emit_ldloc (mb, conv_arg);
7566 mono_mb_emit_stloc (mb, dest_ptr);
7568 /* Emit marshalling loop */
7569 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7570 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7571 mono_mb_emit_stloc (mb, index_var);
7573 mono_mb_emit_ldloc (mb, index_var);
7574 mono_mb_emit_ldloc (mb, src_var);
7575 mono_mb_emit_byte (mb, CEE_LDLEN);
7576 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7578 /* Emit marshalling code */
7581 mono_mb_emit_ldloc (mb, dest_ptr);
7582 mono_mb_emit_ldloc (mb, src_var);
7583 mono_mb_emit_ldloc (mb, index_var);
7584 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7585 mono_mb_emit_icall (mb, conv_to_icall (conv));
7586 mono_mb_emit_byte (mb, CEE_STIND_I);
7588 /* set the src_ptr */
7589 mono_mb_emit_ldloc (mb, src_var);
7590 mono_mb_emit_ldloc (mb, index_var);
7591 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7592 mono_mb_emit_stloc (mb, 0);
7595 mono_mb_emit_ldloc (mb, dest_ptr);
7596 mono_mb_emit_stloc (mb, 1);
7598 /* emit valuetype conversion code */
7599 emit_struct_conv (mb, eklass, FALSE);
7602 mono_mb_emit_add_to_local (mb, index_var, 1);
7603 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7605 mono_mb_emit_byte (mb, CEE_BR);
7606 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
7608 mono_mb_patch_branch (mb, label3);
7610 if (eklass == mono_defaults.string_class) {
7611 /* Null terminate */
7612 mono_mb_emit_ldloc (mb, dest_ptr);
7613 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7614 mono_mb_emit_byte (mb, CEE_STIND_REF);
7617 mono_mb_patch_branch (mb, label1);
7622 case MARSHAL_ACTION_CONV_OUT:
7623 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7624 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);
7625 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7628 if (need_convert || need_free) {
7629 /* FIXME: Optimize blittable case */
7631 guint32 label1, label2, label3;
7632 int index_var, src_ptr, loc, esize;
7634 eklass = klass->element_class;
7635 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7636 esize = sizeof (gpointer);
7638 esize = mono_class_native_size (eklass, NULL);
7639 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7640 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7643 mono_mb_emit_ldarg (mb, argnum);
7645 mono_mb_emit_byte (mb, CEE_LDIND_I);
7646 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7648 mono_mb_emit_ldloc (mb, conv_arg);
7649 mono_mb_emit_stloc (mb, src_ptr);
7651 /* Emit marshalling loop */
7652 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7653 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7654 mono_mb_emit_stloc (mb, index_var);
7656 mono_mb_emit_ldloc (mb, index_var);
7657 mono_mb_emit_ldarg (mb, argnum);
7659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7660 mono_mb_emit_byte (mb, CEE_LDLEN);
7661 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7663 /* Emit marshalling code */
7665 if (eklass == mono_defaults.stringbuilder_class) {
7666 gboolean need_free2;
7667 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7669 g_assert (conv != -1);
7672 mono_mb_emit_ldarg (mb, argnum);
7674 mono_mb_emit_byte (mb, CEE_LDIND_I);
7675 mono_mb_emit_ldloc (mb, index_var);
7676 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7679 mono_mb_emit_ldloc (mb, src_ptr);
7680 mono_mb_emit_byte (mb, CEE_LDIND_I);
7682 mono_mb_emit_icall (mb, conv_to_icall (conv));
7686 mono_mb_emit_ldloc (mb, src_ptr);
7687 mono_mb_emit_byte (mb, CEE_LDIND_I);
7689 mono_mb_emit_icall (mb, mono_marshal_free);
7692 else if (eklass == mono_defaults.string_class) {
7695 mono_mb_emit_ldloc (mb, src_ptr);
7696 mono_mb_emit_byte (mb, CEE_LDIND_I);
7698 mono_mb_emit_icall (mb, mono_marshal_free);
7703 /* set the src_ptr */
7704 mono_mb_emit_ldloc (mb, src_ptr);
7705 mono_mb_emit_stloc (mb, 0);
7708 mono_mb_emit_ldarg (mb, argnum);
7710 mono_mb_emit_byte (mb, CEE_LDIND_I);
7711 mono_mb_emit_ldloc (mb, index_var);
7712 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7713 mono_mb_emit_stloc (mb, 1);
7715 /* emit valuetype conversion code */
7716 emit_struct_conv (mb, eklass, TRUE);
7720 mono_mb_emit_ldloc (mb, src_ptr);
7721 mono_mb_emit_stloc (mb, loc);
7722 mono_mb_emit_ldloc (mb, loc);
7724 emit_struct_free (mb, eklass, loc);
7728 mono_mb_emit_add_to_local (mb, index_var, 1);
7729 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7731 mono_mb_emit_byte (mb, CEE_BR);
7732 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
7734 mono_mb_patch_branch (mb, label1);
7735 mono_mb_patch_branch (mb, label3);
7739 case MARSHAL_ACTION_PUSH:
7741 mono_mb_emit_ldloc_addr (mb, conv_arg);
7743 mono_mb_emit_ldloc (mb, conv_arg);
7746 case MARSHAL_ACTION_CONV_RESULT:
7747 /* fixme: we need conversions here */
7748 mono_mb_emit_stloc (mb, 3);
7751 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7753 guint32 label1, label2, label3;
7754 int index_var, src_ptr, loc, esize, param_num, num_elem;
7755 MonoMarshalConv conv;
7756 gboolean is_string = FALSE;
7758 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7759 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7762 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7763 mono_mb_emit_exception_marshal_directive (mb, msg);
7767 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7768 mono_mb_emit_exception_marshal_directive (mb, msg);
7771 if (spec->native != MONO_NATIVE_LPARRAY) {
7772 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7773 mono_mb_emit_exception_marshal_directive (mb, msg);
7777 /* FIXME: t is from the method which is wrapped, not the delegate type */
7778 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7780 param_num = spec->data.array_data.param_num;
7781 num_elem = spec->data.array_data.num_elem;
7782 if (spec->data.array_data.elem_mult == 0)
7783 /* param_num is not specified */
7786 if (param_num == -1) {
7787 if (num_elem <= 0) {
7788 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7789 mono_mb_emit_exception_marshal_directive (mb, msg);
7794 /* FIXME: Optimize blittable case */
7796 eklass = klass->element_class;
7797 if (eklass == mono_defaults.string_class) {
7799 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7801 else if (eklass == mono_defaults.stringbuilder_class) {
7803 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7808 mono_marshal_load_type_info (eklass);
7811 esize = sizeof (gpointer);
7813 esize = mono_class_native_size (eklass, NULL);
7814 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7815 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7817 mono_mb_emit_byte (mb, CEE_LDNULL);
7818 mono_mb_emit_stloc (mb, conv_arg);
7820 /* Check param index */
7821 if (param_num != -1) {
7822 if (param_num >= m->sig->param_count) {
7823 char *msg = g_strdup ("Array size control parameter index is out of range.");
7824 mono_mb_emit_exception_marshal_directive (mb, msg);
7827 switch (m->sig->params [param_num]->type) {
7840 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7841 mono_mb_emit_exception_marshal_directive (mb, msg);
7848 mono_mb_emit_ldarg (mb, argnum);
7849 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7851 mono_mb_emit_ldarg (mb, argnum);
7852 mono_mb_emit_stloc (mb, src_ptr);
7854 /* Create managed array */
7856 * The LPArray marshalling spec says that sometimes param_num starts
7857 * from 1, sometimes it starts from 0. But MS seems to allways start
7861 if (param_num == -1)
7862 mono_mb_emit_icon (mb, num_elem);
7864 /* FIXME: Add the two together */
7865 mono_mb_emit_ldarg (mb, param_num);
7867 mono_mb_emit_icon (mb, num_elem);
7868 mono_mb_emit_byte (mb, CEE_ADD);
7872 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7873 mono_mb_emit_stloc (mb, conv_arg);
7875 if (eklass->blittable) {
7876 mono_mb_emit_ldloc (mb, conv_arg);
7877 mono_mb_emit_byte (mb, CEE_CONV_I);
7878 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7879 mono_mb_emit_byte (mb, CEE_ADD);
7880 mono_mb_emit_ldarg (mb, argnum);
7881 mono_mb_emit_ldloc (mb, conv_arg);
7882 mono_mb_emit_byte (mb, CEE_LDLEN);
7883 mono_mb_emit_icon (mb, esize);
7884 mono_mb_emit_byte (mb, CEE_MUL);
7885 mono_mb_emit_byte (mb, CEE_PREFIX1);
7886 mono_mb_emit_byte (mb, CEE_CPBLK);
7890 /* Emit marshalling loop */
7891 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7892 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7893 mono_mb_emit_stloc (mb, index_var);
7895 mono_mb_emit_ldloc (mb, index_var);
7896 mono_mb_emit_ldloc (mb, conv_arg);
7897 mono_mb_emit_byte (mb, CEE_LDLEN);
7898 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7900 /* Emit marshalling code */
7902 g_assert (conv != -1);
7904 mono_mb_emit_ldloc (mb, conv_arg);
7905 mono_mb_emit_ldloc (mb, index_var);
7907 mono_mb_emit_ldloc (mb, src_ptr);
7908 mono_mb_emit_byte (mb, CEE_LDIND_I);
7910 mono_mb_emit_icall (mb, conv_to_icall (conv));
7911 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7914 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7915 mono_mb_emit_exception_marshal_directive (mb, msg);
7919 mono_mb_emit_add_to_local (mb, index_var, 1);
7920 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7922 mono_mb_emit_byte (mb, CEE_BR);
7923 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
7925 mono_mb_patch_branch (mb, label1);
7926 mono_mb_patch_branch (mb, label3);
7930 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7932 guint32 label1, label2, label3;
7933 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7934 MonoMarshalConv conv;
7935 gboolean is_string = FALSE;
7938 /* Already handled in CONV_IN */
7941 /* These are already checked in CONV_IN */
7942 g_assert (!t->byref);
7943 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7944 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7946 param_num = spec->data.array_data.param_num;
7947 num_elem = spec->data.array_data.num_elem;
7949 if (spec->data.array_data.elem_mult == 0)
7950 /* param_num is not specified */
7953 if (param_num == -1) {
7954 if (num_elem <= 0) {
7955 g_assert_not_reached ();
7959 /* FIXME: Optimize blittable case */
7961 eklass = klass->element_class;
7962 if (eklass == mono_defaults.string_class) {
7964 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7966 else if (eklass == mono_defaults.stringbuilder_class) {
7968 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7973 mono_marshal_load_type_info (eklass);
7976 esize = sizeof (gpointer);
7978 esize = mono_class_native_size (eklass, NULL);
7980 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7981 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7984 mono_mb_emit_ldloc (mb, conv_arg);
7985 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7987 mono_mb_emit_ldarg (mb, argnum);
7988 mono_mb_emit_stloc (mb, dest_ptr);
7990 if (eklass->blittable) {
7992 mono_mb_emit_ldarg (mb, argnum);
7994 mono_mb_emit_ldloc (mb, conv_arg);
7995 mono_mb_emit_byte (mb, CEE_CONV_I);
7996 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7997 mono_mb_emit_byte (mb, CEE_ADD);
7999 mono_mb_emit_ldloc (mb, conv_arg);
8000 mono_mb_emit_byte (mb, CEE_LDLEN);
8001 mono_mb_emit_icon (mb, esize);
8002 mono_mb_emit_byte (mb, CEE_MUL);
8003 mono_mb_emit_byte (mb, CEE_PREFIX1);
8004 mono_mb_emit_byte (mb, CEE_CPBLK);
8008 /* Emit marshalling loop */
8009 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8010 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8011 mono_mb_emit_stloc (mb, index_var);
8013 mono_mb_emit_ldloc (mb, index_var);
8014 mono_mb_emit_ldloc (mb, conv_arg);
8015 mono_mb_emit_byte (mb, CEE_LDLEN);
8016 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8018 /* Emit marshalling code */
8020 g_assert (conv != -1);
8023 mono_mb_emit_ldloc (mb, dest_ptr);
8026 mono_mb_emit_ldloc (mb, conv_arg);
8027 mono_mb_emit_ldloc (mb, index_var);
8029 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8031 mono_mb_emit_icall (mb, conv_to_icall (conv));
8032 mono_mb_emit_byte (mb, CEE_STIND_I);
8035 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
8036 mono_mb_emit_exception_marshal_directive (mb, msg);
8040 mono_mb_emit_add_to_local (mb, index_var, 1);
8041 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
8043 mono_mb_emit_byte (mb, CEE_BR);
8044 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
8046 mono_mb_patch_branch (mb, label1);
8047 mono_mb_patch_branch (mb, label3);
8051 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
8053 guint32 label1, label2, label3;
8054 int index_var, src, dest, esize;
8055 MonoMarshalConv conv = -1;
8056 gboolean is_string = FALSE;
8058 g_assert (!t->byref);
8060 eklass = klass->element_class;
8062 mono_marshal_load_type_info (eklass);
8064 if (eklass == mono_defaults.string_class) {
8066 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
8069 g_assert_not_reached ();
8073 esize = sizeof (gpointer);
8075 esize = mono_class_native_size (eklass, NULL);
8077 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8078 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8080 mono_mb_emit_stloc (mb, src);
8081 mono_mb_emit_ldloc (mb, src);
8082 mono_mb_emit_stloc (mb, 3);
8084 /* Check for null */
8085 mono_mb_emit_ldloc (mb, src);
8086 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8088 /* Allocate native array */
8089 mono_mb_emit_icon (mb, esize);
8090 mono_mb_emit_ldloc (mb, src);
8091 mono_mb_emit_byte (mb, CEE_LDLEN);
8093 if (eklass == mono_defaults.string_class) {
8094 /* Make the array bigger for the terminating null */
8095 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8096 mono_mb_emit_byte (mb, CEE_ADD);
8098 mono_mb_emit_byte (mb, CEE_MUL);
8099 mono_mb_emit_icall (mb, mono_marshal_alloc);
8100 mono_mb_emit_stloc (mb, dest);
8101 mono_mb_emit_ldloc (mb, dest);
8102 mono_mb_emit_stloc (mb, 3);
8104 /* Emit marshalling loop */
8105 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8106 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8107 mono_mb_emit_stloc (mb, index_var);
8109 mono_mb_emit_ldloc (mb, index_var);
8110 mono_mb_emit_ldloc (mb, src);
8111 mono_mb_emit_byte (mb, CEE_LDLEN);
8112 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8114 /* Emit marshalling code */
8116 g_assert (conv != -1);
8119 mono_mb_emit_ldloc (mb, dest);
8122 mono_mb_emit_ldloc (mb, src);
8123 mono_mb_emit_ldloc (mb, index_var);
8125 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8127 mono_mb_emit_icall (mb, conv_to_icall (conv));
8128 mono_mb_emit_byte (mb, CEE_STIND_I);
8131 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8132 mono_mb_emit_exception_marshal_directive (mb, msg);
8136 mono_mb_emit_add_to_local (mb, index_var, 1);
8137 mono_mb_emit_add_to_local (mb, dest, esize);
8139 mono_mb_emit_byte (mb, CEE_BR);
8140 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
8142 mono_mb_patch_branch (mb, label3);
8143 mono_mb_patch_branch (mb, label1);
8147 g_assert_not_reached ();
8154 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8155 MonoMarshalSpec *spec,
8156 int conv_arg, MonoType **conv_arg_type,
8157 MarshalAction action)
8159 MonoMethodBuilder *mb = m->mb;
8162 case MARSHAL_ACTION_CONV_IN: {
8163 MonoType *local_type;
8164 int variant_bool = 0;
8168 local_type = &mono_defaults.int32_class->byval_arg;
8170 switch (spec->native) {
8171 case MONO_NATIVE_I1:
8172 local_type = &mono_defaults.byte_class->byval_arg;
8174 case MONO_NATIVE_VARIANTBOOL:
8175 local_type = &mono_defaults.int16_class->byval_arg;
8179 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8180 local_type = &mono_defaults.int32_class->byval_arg;
8184 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8185 conv_arg = mono_mb_add_local (mb, local_type);
8186 mono_mb_emit_ldarg (mb, argnum);
8187 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8189 mono_mb_emit_byte (mb, CEE_NEG);
8190 mono_mb_emit_stloc (mb, conv_arg);
8194 case MARSHAL_ACTION_CONV_OUT:
8197 mono_mb_emit_ldarg (mb, argnum);
8198 mono_mb_emit_ldloc (mb, conv_arg);
8199 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
8200 mono_mb_emit_byte (mb, CEE_NEG);
8201 mono_mb_emit_byte (mb, CEE_STIND_I1);
8204 case MARSHAL_ACTION_PUSH:
8206 mono_mb_emit_ldloc_addr (mb, conv_arg);
8208 mono_mb_emit_ldarg (mb, argnum);
8211 case MARSHAL_ACTION_CONV_RESULT:
8212 /* maybe we need to make sure that it fits within 8 bits */
8213 mono_mb_emit_stloc (mb, 3);
8217 g_assert_not_reached ();
8224 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8225 MonoMarshalSpec *spec, int conv_arg,
8226 MonoType **conv_arg_type, MarshalAction action)
8228 MonoMethodBuilder *mb = m->mb;
8231 case MARSHAL_ACTION_CONV_IN:
8232 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
8233 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8234 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8238 case MARSHAL_ACTION_PUSH:
8239 mono_mb_emit_ldarg (mb, argnum);
8242 case MARSHAL_ACTION_CONV_RESULT:
8243 /* no conversions necessary */
8244 mono_mb_emit_stloc (mb, 3);
8255 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8256 MonoMarshalSpec *spec, int conv_arg,
8257 MonoType **conv_arg_type, MarshalAction action)
8259 MonoMethodBuilder *mb = m->mb;
8262 case MARSHAL_ACTION_PUSH:
8263 /* fixme: dont know how to marshal that. We cant simply
8264 * convert it to a one byte UTF8 character, because an
8265 * unicode character may need more that one byte in UTF8 */
8266 mono_mb_emit_ldarg (mb, argnum);
8269 case MARSHAL_ACTION_CONV_RESULT:
8270 /* fixme: we need conversions here */
8271 mono_mb_emit_stloc (mb, 3);
8282 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8283 MonoMarshalSpec *spec, int conv_arg,
8284 MonoType **conv_arg_type, MarshalAction action)
8286 MonoMethodBuilder *mb = m->mb;
8289 case MARSHAL_ACTION_PUSH:
8290 mono_mb_emit_ldarg (mb, argnum);
8293 case MARSHAL_ACTION_CONV_RESULT:
8294 /* no conversions necessary */
8295 mono_mb_emit_stloc (mb, 3);
8306 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8307 MonoMarshalSpec *spec, int conv_arg,
8308 MonoType **conv_arg_type, MarshalAction action)
8310 /* Ensure that we have marshalling info for this param */
8311 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8313 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8314 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8316 if (spec && spec->native == MONO_NATIVE_ASANY)
8317 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8320 case MONO_TYPE_VALUETYPE:
8321 if (t->data.klass == mono_defaults.handleref_class)
8322 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8324 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8325 case MONO_TYPE_STRING:
8326 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8327 case MONO_TYPE_CLASS:
8328 case MONO_TYPE_OBJECT:
8329 if (spec && spec->native == MONO_NATIVE_STRUCT)
8330 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8332 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8333 spec->native == MONO_NATIVE_IDISPATCH ||
8334 spec->native == MONO_NATIVE_INTERFACE))
8335 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8337 if (mono_defaults.safehandle_class != NULL &&
8338 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8339 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8341 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8342 case MONO_TYPE_ARRAY:
8343 case MONO_TYPE_SZARRAY:
8344 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8345 case MONO_TYPE_BOOLEAN:
8346 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8348 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8349 case MONO_TYPE_CHAR:
8350 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8363 case MONO_TYPE_FNPTR:
8364 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8371 * mono_marshal_emit_native_wrapper:
8372 * @image: the image to use for looking up custom marshallers
8373 * @sig: The signature of the native function
8374 * @piinfo: Marshalling information
8375 * @mspecs: Marshalling information
8376 * @func: the native function to call
8378 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8381 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8383 EmitMarshalContext m;
8384 MonoMethodSignature *csig;
8386 int i, argnum, *tmp_locals;
8388 static MonoMethodSignature *get_last_error_sig = NULL;
8393 /* we copy the signature, so that we can set pinvoke to 0 */
8394 csig = signature_dup (mb->method->klass->image, sig);
8399 /* we allocate local for use with emit_struct_conv() */
8400 /* allocate local 0 (pointer) src_ptr */
8401 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8402 /* allocate local 1 (pointer) dst_ptr */
8403 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8404 /* allocate local 2 (boolean) delete_old */
8405 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8407 /* delete_old = FALSE */
8408 mono_mb_emit_icon (mb, 0);
8409 mono_mb_emit_stloc (mb, 2);
8411 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8412 /* allocate local 3 to store the return value */
8413 mono_mb_add_local (mb, sig->ret);
8416 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8417 /* Return type custom marshaling */
8419 * Since we can't determine the return type of the unmanaged function,
8420 * we assume it returns a pointer, and pass that pointer to
8421 * MarshalNativeToManaged.
8423 csig->ret = &mono_defaults.int_class->byval_arg;
8426 /* we first do all conversions */
8427 tmp_locals = alloca (sizeof (int) * sig->param_count);
8428 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8430 for (i = 0; i < sig->param_count; i ++) {
8431 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8434 /* push all arguments */
8437 mono_mb_emit_byte (mb, CEE_LDARG_0);
8440 for (i = 0; i < sig->param_count; i++) {
8441 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8444 /* call the native method */
8445 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8446 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8449 mono_mb_emit_native_call (mb, csig, func);
8452 /* Set LastError if needed */
8453 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8454 if (!get_last_error_sig) {
8455 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8456 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8457 get_last_error_sig->pinvoke = 1;
8460 #ifdef PLATFORM_WIN32
8462 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8463 * clobber its value.
8465 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8466 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8468 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8472 /* convert the result */
8473 if (!sig->ret->byref) {
8474 MonoMarshalSpec *spec = mspecs [0];
8475 type = sig->ret->type;
8477 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8478 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8483 case MONO_TYPE_VOID:
8485 case MONO_TYPE_VALUETYPE:
8486 klass = sig->ret->data.klass;
8487 if (klass->enumtype) {
8488 type = sig->ret->data.klass->enum_basetype->type;
8491 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8505 case MONO_TYPE_FNPTR:
8506 case MONO_TYPE_STRING:
8507 case MONO_TYPE_CLASS:
8508 case MONO_TYPE_OBJECT:
8509 case MONO_TYPE_BOOLEAN:
8510 case MONO_TYPE_ARRAY:
8511 case MONO_TYPE_SZARRAY:
8512 case MONO_TYPE_CHAR:
8514 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8516 case MONO_TYPE_TYPEDBYREF:
8518 g_warning ("return type 0x%02x unknown", sig->ret->type);
8519 g_assert_not_reached ();
8523 mono_mb_emit_stloc (mb, 3);
8527 * Need to call this after converting the result since MONO_VTADDR needs
8528 * to be adjacent to the call instruction.
8530 emit_thread_interrupt_checkpoint (mb);
8532 /* we need to convert byref arguments back and free string arrays */
8533 for (i = 0; i < sig->param_count; i++) {
8534 MonoType *t = sig->params [i];
8535 MonoMarshalSpec *spec = mspecs [i + 1];
8537 argnum = i + sig->hasthis;
8539 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8540 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8545 case MONO_TYPE_STRING:
8546 case MONO_TYPE_VALUETYPE:
8547 case MONO_TYPE_CLASS:
8548 case MONO_TYPE_OBJECT:
8549 case MONO_TYPE_SZARRAY:
8550 case MONO_TYPE_BOOLEAN:
8551 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8556 if (!MONO_TYPE_IS_VOID(sig->ret))
8557 mono_mb_emit_ldloc (mb, 3);
8559 mono_mb_emit_byte (mb, CEE_RET);
8563 * mono_marshal_get_native_wrapper:
8564 * @method: The MonoMethod to wrap.
8566 * generates IL code for the pinvoke wrapper (the generated method
8567 * calls the unmanaged code in piinfo->addr)
8570 mono_marshal_get_native_wrapper (MonoMethod *method)
8572 MonoMethodSignature *sig, *csig;
8573 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8574 MonoMethodBuilder *mb;
8575 MonoMarshalSpec **mspecs;
8578 gboolean pinvoke = FALSE;
8581 const char *exc_class = "MissingMethodException";
8582 const char *exc_arg = NULL;
8584 g_assert (method != NULL);
8585 g_assert (mono_method_signature (method)->pinvoke);
8587 cache = method->klass->image->native_wrapper_cache;
8588 if ((res = mono_marshal_find_in_cache (cache, method)))
8591 if (MONO_CLASS_IS_IMPORT (method->klass))
8592 return cominterop_get_native_wrapper (method);
8594 sig = mono_method_signature (method);
8596 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8597 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8600 if (!piinfo->addr) {
8602 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8604 piinfo->addr = mono_lookup_internal_call (method);
8607 /* hack - redirect certain string constructors to CreateString */
8608 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8609 g_assert (!pinvoke);
8610 g_assert (method->string_ctor);
8611 g_assert (sig->hasthis);
8613 /* CreateString returns a value */
8614 csig = signature_dup (method->klass->image, sig);
8615 csig->ret = &mono_defaults.string_class->byval_arg;
8619 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8620 if (!strcmp ("CreateString", res->name) &&
8621 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8623 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8624 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8626 /* create a wrapper to preserve .ctor in stack trace */
8627 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8629 mono_mb_emit_byte (mb, CEE_LDARG_0);
8630 for (i = 1; i <= csig->param_count; i++)
8631 mono_mb_emit_ldarg (mb, i);
8632 mono_mb_emit_managed_call (mb, res, NULL);
8633 mono_mb_emit_byte (mb, CEE_RET);
8635 /* use native_wrapper_cache because internal calls are looked up there */
8636 res = mono_mb_create_and_cache (cache, method,
8637 mb, csig, csig->param_count + 1);
8645 /* exception will be thrown */
8646 piinfo->addr = NULL;
8647 g_warning ("cannot find CreateString for .ctor");
8650 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8652 mb->method->save_lmf = 1;
8654 if (!piinfo->addr) {
8655 mono_mb_emit_exception (mb, exc_class, exc_arg);
8656 csig = signature_dup (method->klass->image, sig);
8658 res = mono_mb_create_and_cache (cache, method,
8659 mb, csig, csig->param_count + 16);
8664 /* internal calls: we simply push all arguments and call the method (no conversions) */
8665 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8667 /* hack - string constructors returns a value */
8668 if (method->string_ctor) {
8669 csig = signature_dup (method->klass->image, sig);
8670 csig->ret = &mono_defaults.string_class->byval_arg;
8675 mono_mb_emit_byte (mb, CEE_LDARG_0);
8677 for (i = 0; i < sig->param_count; i++)
8678 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8680 g_assert (piinfo->addr);
8681 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8682 emit_thread_interrupt_checkpoint (mb);
8683 mono_mb_emit_byte (mb, CEE_RET);
8685 csig = signature_dup (method->klass->image, csig);
8687 res = mono_mb_create_and_cache (cache, method,
8688 mb, csig, csig->param_count + 16);
8695 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8696 mono_method_get_marshal_info (method, mspecs);
8698 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr);
8700 csig = signature_dup (method->klass->image, sig);
8702 res = mono_mb_create_and_cache (cache, method,
8703 mb, csig, csig->param_count + 16);
8706 for (i = sig->param_count; i >= 0; i--)
8708 mono_metadata_free_marshal_spec (mspecs [i]);
8711 /* 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)); */
8717 * mono_marshal_get_native_func_wrapper:
8718 * @image: The image to use for memory allocation and for looking up custom marshallers.
8719 * @sig: The signature of the function
8720 * @func: The native function to wrap
8722 * Returns a wrapper method around native functions, similar to the pinvoke
8726 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8727 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8729 MonoMethodSignature *csig;
8731 MonoMethodBuilder *mb;
8736 cache = image->native_wrapper_cache;
8737 if ((res = mono_marshal_find_in_cache (cache, func)))
8740 name = g_strdup_printf ("wrapper_native_%p", func);
8741 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8742 mb->method->save_lmf = 1;
8744 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func);
8746 csig = signature_dup (image, sig);
8748 res = mono_mb_create_and_cache (cache, func,
8749 mb, csig, csig->param_count + 16);
8752 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8757 /* FIXME: moving GC */
8759 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8761 MonoMethodSignature *sig, *csig;
8767 /* allocate local 0 (pointer) src_ptr */
8768 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8769 /* allocate local 1 (pointer) dst_ptr */
8770 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8771 /* allocate local 2 (boolean) delete_old */
8772 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8774 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8775 /* allocate local 3 to store the return value */
8776 mono_mb_add_local (mb, sig->ret);
8779 mono_mb_emit_icon (mb, 0);
8780 mono_mb_emit_stloc (mb, 2);
8782 /* fixme: howto handle this ? */
8785 /* FIXME: need a solution for the moving GC here */
8786 mono_mb_emit_ptr (mb, this);
8789 g_assert_not_reached ();
8793 /* we first do all conversions */
8794 tmp_locals = alloca (sizeof (int) * sig->param_count);
8795 for (i = 0; i < sig->param_count; i ++) {
8796 MonoType *t = sig->params [i];
8799 case MONO_TYPE_OBJECT:
8800 case MONO_TYPE_CLASS:
8801 case MONO_TYPE_VALUETYPE:
8802 case MONO_TYPE_ARRAY:
8803 case MONO_TYPE_SZARRAY:
8804 case MONO_TYPE_STRING:
8805 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8814 emit_thread_interrupt_checkpoint (mb);
8816 for (i = 0; i < sig->param_count; i++) {
8817 MonoType *t = sig->params [i];
8819 if (tmp_locals [i]) {
8821 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8823 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8826 mono_mb_emit_ldarg (mb, i);
8829 mono_mb_emit_managed_call (mb, method, NULL);
8831 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8832 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8835 if (!sig->ret->byref) {
8836 switch (sig->ret->type) {
8837 case MONO_TYPE_VOID:
8839 case MONO_TYPE_BOOLEAN:
8853 case MONO_TYPE_OBJECT:
8854 mono_mb_emit_stloc (mb, 3);
8856 case MONO_TYPE_STRING:
8857 csig->ret = &mono_defaults.int_class->byval_arg;
8858 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8860 case MONO_TYPE_VALUETYPE:
8861 case MONO_TYPE_CLASS:
8862 case MONO_TYPE_SZARRAY:
8863 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8866 g_warning ("return type 0x%02x unknown", sig->ret->type);
8867 g_assert_not_reached ();
8870 mono_mb_emit_stloc (mb, 3);
8873 /* Convert byref arguments back */
8874 for (i = 0; i < sig->param_count; i ++) {
8875 MonoType *t = sig->params [i];
8876 MonoMarshalSpec *spec = mspecs [i + 1];
8878 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8879 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8881 else if (t->byref) {
8883 case MONO_TYPE_CLASS:
8884 case MONO_TYPE_VALUETYPE:
8885 case MONO_TYPE_OBJECT:
8886 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8890 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8891 /* The [Out] information is encoded in the delegate signature */
8893 case MONO_TYPE_SZARRAY:
8894 case MONO_TYPE_CLASS:
8895 case MONO_TYPE_VALUETYPE:
8896 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8899 g_assert_not_reached ();
8904 if (m->retobj_var) {
8905 mono_mb_emit_ldloc (mb, m->retobj_var);
8906 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8907 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8910 if (!MONO_TYPE_IS_VOID(sig->ret))
8911 mono_mb_emit_ldloc (mb, 3);
8912 mono_mb_emit_byte (mb, CEE_RET);
8918 * generates IL code to call managed methods from unmanaged code
8921 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8923 static MonoClass *UnmanagedFunctionPointerAttribute;
8924 MonoMethodSignature *sig, *csig, *invoke_sig;
8925 MonoMethodBuilder *mb;
8926 MonoMethod *res, *invoke;
8927 MonoMarshalSpec **mspecs;
8928 MonoMethodPInvoke piinfo;
8931 EmitMarshalContext m;
8933 g_assert (method != NULL);
8934 g_assert (!mono_method_signature (method)->pinvoke);
8937 * FIXME: Should cache the method+delegate type pair, since the same method
8938 * could be called with different delegates, thus different marshalling
8941 cache = method->klass->image->managed_wrapper_cache;
8942 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
8945 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
8946 invoke_sig = mono_method_signature (invoke);
8948 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8949 mono_method_get_marshal_info (invoke, mspecs);
8951 sig = mono_method_signature (method);
8953 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8956 /* we copy the signature, so that we can modify it */
8958 /* Need to free this later */
8959 csig = mono_metadata_signature_dup (sig);
8961 csig = signature_dup (method->klass->image, sig);
8970 m.image = method->klass->image;
8972 #ifdef PLATFORM_WIN32
8974 * Under windows, delegates passed to native code must use the STDCALL
8975 * calling convention.
8977 csig->call_convention = MONO_CALL_STDCALL;
8980 /* Change default calling convention if needed */
8981 /* Why is this a modopt ? */
8982 if (invoke_sig->ret && invoke_sig->ret->num_mods) {
8983 for (i = 0; i < invoke_sig->ret->num_mods; ++i) {
8984 MonoClass *cmod_class = mono_class_get (delegate_klass->image, invoke_sig->ret->modifiers [i].token);
8985 g_assert (cmod_class);
8986 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8987 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8988 csig->call_convention = MONO_CALL_C;
8989 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8990 csig->call_convention = MONO_CALL_STDCALL;
8991 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8992 csig->call_convention = MONO_CALL_FASTCALL;
8993 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8994 csig->call_convention = MONO_CALL_THISCALL;
8999 /* Handle the UnmanagedFunctionPointerAttribute */
9000 if (!UnmanagedFunctionPointerAttribute)
9001 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9003 /* The attribute is only available in Net 2.0 */
9004 if (UnmanagedFunctionPointerAttribute) {
9005 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
9006 MonoCustomAttrInfo *cinfo;
9009 * The pinvoke attributes are stored in a real custom attribute so we have to
9012 cinfo = mono_custom_attrs_from_class (delegate_klass);
9014 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
9016 memset (&piinfo, 0, sizeof (piinfo));
9018 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
9020 csig->call_convention = attr->call_conv - 1;
9023 mono_custom_attrs_free (cinfo);
9027 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
9030 res = mono_mb_create_and_cache (cache, method,
9031 mb, csig, sig->param_count + 16);
9034 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9038 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9040 mono_metadata_free_marshal_spec (mspecs [i]);
9043 /* 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)); */
9048 static MonoReflectionType *
9049 type_from_handle (MonoType *handle)
9051 MonoDomain *domain = mono_domain_get ();
9052 MonoClass *klass = mono_class_from_mono_type (handle);
9054 MONO_ARCH_SAVE_REGS;
9056 mono_class_init (klass);
9057 return mono_type_get_object (domain, handle);
9061 * mono_marshal_get_isinst:
9062 * @klass: the type of the field
9064 * This method generates a function which can be used to check if an object is
9065 * an instance of the given type, icluding the case where the object is a proxy.
9066 * The generated function has the following signature:
9067 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9070 mono_marshal_get_isinst (MonoClass *klass)
9072 static MonoMethodSignature *isint_sig = NULL;
9075 int pos_was_ok, pos_failed, pos_end, pos_end2;
9077 MonoMethodBuilder *mb;
9079 cache = klass->image->isinst_cache;
9080 if ((res = mono_marshal_find_in_cache (cache, klass)))
9084 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9085 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9086 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9087 isint_sig->pinvoke = 0;
9090 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9091 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9094 mb->method->save_lmf = 1;
9096 /* check if the object is a proxy that needs special cast */
9097 mono_mb_emit_ldarg (mb, 0);
9098 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9099 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9101 /* The result of MONO_ISINST can be:
9102 0) the type check succeeded
9103 1) the type check did not succeed
9104 2) a CanCastTo call is needed */
9106 mono_mb_emit_byte (mb, CEE_DUP);
9107 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9109 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9110 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9112 /* get the real proxy from the transparent proxy*/
9114 mono_mb_emit_ldarg (mb, 0);
9115 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9116 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9120 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
9121 mono_mb_emit_byte (mb, CEE_LDNULL);
9122 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9126 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
9127 mono_mb_emit_byte (mb, CEE_POP);
9128 mono_mb_emit_ldarg (mb, 0);
9132 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
9133 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
9134 mono_mb_emit_byte (mb, CEE_RET);
9136 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9143 * mono_marshal_get_castclass:
9144 * @klass: the type of the field
9146 * This method generates a function which can be used to cast an object to
9147 * an instance of the given type, icluding the case where the object is a proxy.
9148 * The generated function has the following signature:
9149 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9152 mono_marshal_get_castclass (MonoClass *klass)
9154 static MonoMethodSignature *castclass_sig = NULL;
9157 int pos_was_ok, pos_was_ok2;
9159 MonoMethodBuilder *mb;
9161 cache = klass->image->castclass_cache;
9162 if ((res = mono_marshal_find_in_cache (cache, klass)))
9165 if (!castclass_sig) {
9166 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9167 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9168 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9169 castclass_sig->pinvoke = 0;
9172 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9173 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9176 mb->method->save_lmf = 1;
9178 /* check if the object is a proxy that needs special cast */
9179 mono_mb_emit_ldarg (mb, 0);
9180 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9181 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9183 /* The result of MONO_ISINST can be:
9184 0) the cast is valid
9185 1) cast of unknown proxy type
9186 or an exception if the cast is is invalid
9189 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9191 /* get the real proxy from the transparent proxy*/
9193 mono_mb_emit_ldarg (mb, 0);
9194 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9195 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9198 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9201 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
9202 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
9203 mono_mb_emit_ldarg (mb, 0);
9206 mono_mb_emit_byte (mb, CEE_RET);
9208 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9215 mono_marshal_get_proxy_cancast (MonoClass *klass)
9217 static MonoMethodSignature *isint_sig = NULL;
9220 int pos_failed, pos_end;
9222 MonoMethod *can_cast_to;
9223 MonoMethodDesc *desc;
9224 MonoMethodBuilder *mb;
9226 cache = klass->image->proxy_isinst_cache;
9227 if ((res = mono_marshal_find_in_cache (cache, klass)))
9231 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9232 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9233 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9234 isint_sig->pinvoke = 0;
9237 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9238 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9241 mb->method->save_lmf = 1;
9243 /* get the real proxy from the transparent proxy*/
9244 mono_mb_emit_ldarg (mb, 0);
9245 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9246 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9248 /* get the reflection type from the type handle */
9249 mono_mb_emit_ptr (mb, &klass->byval_arg);
9250 mono_mb_emit_icall (mb, type_from_handle);
9252 mono_mb_emit_ldarg (mb, 0);
9254 /* make the call to CanCastTo (type, ob) */
9255 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9256 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9257 g_assert (can_cast_to);
9258 mono_method_desc_free (desc);
9259 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9261 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9263 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9264 mono_mb_emit_ptr (mb, &klass->byval_arg);
9265 mono_mb_emit_icall (mb, type_from_handle);
9266 mono_mb_emit_ldarg (mb, 0);
9268 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9269 emit_thread_interrupt_checkpoint (mb);
9271 mono_mb_emit_ldarg (mb, 0);
9272 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9276 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
9277 mono_mb_emit_byte (mb, CEE_LDNULL);
9281 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
9282 mono_mb_emit_byte (mb, CEE_RET);
9284 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9291 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9294 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9295 klass = mono_class_from_mono_type (rtype->type);
9296 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9300 * mono_marshal_get_struct_to_ptr:
9303 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9306 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9308 MonoMethodBuilder *mb;
9309 static MonoMethod *stoptr = NULL;
9312 g_assert (klass != NULL);
9314 mono_marshal_load_type_info (klass);
9316 if (klass->marshal_info->str_to_ptr)
9317 return klass->marshal_info->str_to_ptr;
9320 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9323 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9325 if (klass->blittable) {
9326 mono_mb_emit_byte (mb, CEE_LDARG_1);
9327 mono_mb_emit_byte (mb, CEE_LDARG_0);
9328 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9329 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9330 mono_mb_emit_byte (mb, CEE_PREFIX1);
9331 mono_mb_emit_byte (mb, CEE_CPBLK);
9334 /* allocate local 0 (pointer) src_ptr */
9335 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9336 /* allocate local 1 (pointer) dst_ptr */
9337 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9338 /* allocate local 2 (boolean) delete_old */
9339 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9340 mono_mb_emit_byte (mb, CEE_LDARG_2);
9341 mono_mb_emit_stloc (mb, 2);
9343 /* initialize src_ptr to point to the start of object data */
9344 mono_mb_emit_byte (mb, CEE_LDARG_0);
9345 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9346 mono_mb_emit_stloc (mb, 0);
9348 /* initialize dst_ptr */
9349 mono_mb_emit_byte (mb, CEE_LDARG_1);
9350 mono_mb_emit_stloc (mb, 1);
9352 emit_struct_conv (mb, klass, FALSE);
9355 mono_mb_emit_byte (mb, CEE_RET);
9357 res = mono_mb_create_method (mb, mono_method_signature (stoptr), 0);
9360 klass->marshal_info->str_to_ptr = res;
9365 * mono_marshal_get_ptr_to_struct:
9368 * generates IL code for PtrToStructure (IntPtr src, object structure)
9371 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9373 MonoMethodBuilder *mb;
9374 static MonoMethodSignature *ptostr = NULL;
9377 g_assert (klass != NULL);
9379 mono_marshal_load_type_info (klass);
9381 if (klass->marshal_info->ptr_to_str)
9382 return klass->marshal_info->ptr_to_str;
9385 /* Create the signature corresponding to
9386 static void PtrToStructure (IntPtr ptr, object structure);
9387 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9388 ptostr = mono_create_icall_signature ("void ptr object");
9390 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9392 if (klass->blittable) {
9393 mono_mb_emit_byte (mb, CEE_LDARG_1);
9394 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9395 mono_mb_emit_byte (mb, CEE_LDARG_0);
9396 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9397 mono_mb_emit_byte (mb, CEE_PREFIX1);
9398 mono_mb_emit_byte (mb, CEE_CPBLK);
9401 /* allocate local 0 (pointer) src_ptr */
9402 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9403 /* allocate local 1 (pointer) dst_ptr */
9404 mono_mb_add_local (mb, &klass->this_arg);
9406 /* initialize src_ptr to point to the start of object data */
9407 mono_mb_emit_byte (mb, CEE_LDARG_0);
9408 mono_mb_emit_stloc (mb, 0);
9410 /* initialize dst_ptr */
9411 mono_mb_emit_byte (mb, CEE_LDARG_1);
9412 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9413 mono_mb_emit_stloc (mb, 1);
9415 emit_struct_conv (mb, klass, TRUE);
9418 mono_mb_emit_byte (mb, CEE_RET);
9420 res = mono_mb_create_method (mb, ptostr, 0);
9423 klass->marshal_info->ptr_to_str = res;
9428 * generates IL code for the synchronized wrapper: the generated method
9429 * calls METHOD while locking 'this' or the parent type.
9432 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9434 static MonoMethod *enter_method, *exit_method;
9435 MonoMethodSignature *sig;
9436 MonoExceptionClause *clause;
9437 MonoMethodHeader *header;
9438 MonoMethodBuilder *mb;
9441 int i, pos, this_local, ret_local = 0;
9445 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9448 cache = method->klass->image->synchronized_cache;
9449 if ((res = mono_marshal_find_in_cache (cache, method)))
9452 sig = signature_dup (method->klass->image, mono_method_signature (method));
9455 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9458 if (!MONO_TYPE_IS_VOID (sig->ret))
9459 ret_local = mono_mb_add_local (mb, sig->ret);
9462 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9464 mono_loader_lock ();
9465 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
9466 mono_loader_unlock ();
9467 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9469 if (!enter_method) {
9470 MonoMethodDesc *desc;
9472 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9473 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9474 g_assert (enter_method);
9475 mono_method_desc_free (desc);
9476 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9477 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9478 g_assert (exit_method);
9479 mono_method_desc_free (desc);
9482 /* Push this or the type object */
9483 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9485 * GetTypeFromHandle isn't called as a managed method because it has
9486 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9487 * transformed into something else by the JIT.
9489 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9490 mono_mb_emit_icall (mb, type_from_handle);
9493 mono_mb_emit_ldarg (mb, 0);
9494 mono_mb_emit_stloc (mb, this_local);
9496 /* Call Monitor::Enter() */
9497 mono_mb_emit_ldloc (mb, this_local);
9498 mono_mb_emit_managed_call (mb, enter_method, NULL);
9500 clause->try_offset = mb->pos;
9502 /* Call the method */
9504 mono_mb_emit_ldarg (mb, 0);
9505 for (i = 0; i < sig->param_count; i++)
9506 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9508 /* this is needed to avoid recursion */
9509 mono_mb_emit_byte (mb, CEE_PREFIX1);
9510 mono_mb_emit_op (mb, CEE_LDFTN, method);
9511 mono_mb_emit_calli (mb, mono_method_signature (method));
9513 if (!MONO_TYPE_IS_VOID (sig->ret))
9514 mono_mb_emit_stloc (mb, ret_local);
9516 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9518 clause->try_len = mb->pos - clause->try_offset;
9519 clause->handler_offset = mb->pos;
9521 /* Call Monitor::Exit() */
9522 mono_mb_emit_ldloc (mb, this_local);
9523 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
9524 mono_mb_emit_managed_call (mb, exit_method, NULL);
9525 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9527 clause->handler_len = mb->pos - clause->handler_offset;
9529 mono_mb_patch_branch (mb, pos);
9530 if (!MONO_TYPE_IS_VOID (sig->ret))
9531 mono_mb_emit_ldloc (mb, ret_local);
9532 mono_mb_emit_byte (mb, CEE_RET);
9534 res = mono_mb_create_and_cache (cache, method,
9535 mb, sig, sig->param_count + 16);
9538 header = ((MonoMethodNormal *)res)->header;
9539 header->num_clauses = 1;
9540 header->clauses = clause;
9547 * the returned method calls 'method' unboxing the this argument
9550 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9552 MonoMethodSignature *sig = mono_method_signature (method);
9554 MonoMethodBuilder *mb;
9558 cache = method->klass->image->unbox_wrapper_cache;
9559 if ((res = mono_marshal_find_in_cache (cache, method)))
9562 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9564 g_assert (sig->hasthis);
9566 mono_mb_emit_ldarg (mb, 0);
9567 mono_mb_emit_icon (mb, sizeof (MonoObject));
9568 mono_mb_emit_byte (mb, CEE_ADD);
9569 for (i = 0; i < sig->param_count; ++i)
9570 mono_mb_emit_ldarg (mb, i + 1);
9571 mono_mb_emit_managed_call (mb, method, NULL);
9572 mono_mb_emit_byte (mb, CEE_RET);
9574 res = mono_mb_create_and_cache (cache, method,
9575 mb, sig, sig->param_count + 16);
9578 /* 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)); */
9584 mono_marshal_get_stelemref ()
9586 static MonoMethod* ret = NULL;
9587 MonoMethodSignature *sig;
9588 MonoMethodBuilder *mb;
9590 guint32 b1, b2, b3, b4;
9593 int array_slot_addr;
9598 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9601 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9603 /* void stelemref (void* array, int idx, void* value) */
9604 sig->ret = &mono_defaults.void_class->byval_arg;
9605 sig->params [0] = &mono_defaults.object_class->byval_arg;
9606 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9607 sig->params [2] = &mono_defaults.object_class->byval_arg;
9609 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9610 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9611 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9615 <ldelema (bound check)>
9619 aklass = array->vtable->klass->element_class;
9620 vklass = value->vtable->klass;
9622 if (vklass->idepth < aklass->idepth)
9625 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9629 *array_slot_addr = value;
9633 if (mono_object_isinst (value, aklass))
9636 throw new ArrayTypeMismatchException ();
9639 /* ldelema (implicit bound check) */
9640 mono_mb_emit_ldarg (mb, 0);
9641 mono_mb_emit_ldarg (mb, 1);
9642 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9643 mono_mb_emit_stloc (mb, array_slot_addr);
9645 /* if (!value) goto do_store */
9646 mono_mb_emit_ldarg (mb, 2);
9647 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9649 /* aklass = array->vtable->klass->element_class */
9650 mono_mb_emit_ldarg (mb, 0);
9651 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9652 mono_mb_emit_byte (mb, CEE_LDIND_I);
9653 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9654 mono_mb_emit_byte (mb, CEE_LDIND_I);
9655 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9656 mono_mb_emit_byte (mb, CEE_LDIND_I);
9657 mono_mb_emit_stloc (mb, aklass);
9659 /* vklass = value->vtable->klass */
9660 mono_mb_emit_ldarg (mb, 2);
9661 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9662 mono_mb_emit_byte (mb, CEE_LDIND_I);
9663 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9664 mono_mb_emit_byte (mb, CEE_LDIND_I);
9665 mono_mb_emit_stloc (mb, vklass);
9667 /* if (vklass->idepth < aklass->idepth) goto failue */
9668 mono_mb_emit_ldloc (mb, vklass);
9669 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9670 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9672 mono_mb_emit_ldloc (mb, aklass);
9673 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9674 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9676 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9678 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9679 mono_mb_emit_ldloc (mb, vklass);
9680 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9681 mono_mb_emit_byte (mb, CEE_LDIND_I);
9683 mono_mb_emit_ldloc (mb, aklass);
9684 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9685 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9686 mono_mb_emit_icon (mb, 1);
9687 mono_mb_emit_byte (mb, CEE_SUB);
9688 mono_mb_emit_icon (mb, sizeof (void*));
9689 mono_mb_emit_byte (mb, CEE_MUL);
9690 mono_mb_emit_byte (mb, CEE_ADD);
9691 mono_mb_emit_byte (mb, CEE_LDIND_I);
9693 mono_mb_emit_ldloc (mb, aklass);
9695 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9699 mono_mb_patch_branch (mb, b1);
9700 mono_mb_emit_ldloc (mb, array_slot_addr);
9701 mono_mb_emit_ldarg (mb, 2);
9702 mono_mb_emit_byte (mb, CEE_STIND_REF);
9704 mono_mb_emit_byte (mb, CEE_RET);
9707 mono_mb_patch_branch (mb, b2);
9708 mono_mb_patch_branch (mb, b3);
9710 mono_mb_emit_ldarg (mb, 2);
9711 mono_mb_emit_ldloc (mb, aklass);
9712 mono_mb_emit_icall (mb, mono_object_isinst);
9714 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9715 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9716 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9718 mono_mb_emit_byte (mb, CEE_RET);
9719 ret = mono_mb_create_method (mb, sig, 4);
9730 /* LOCKING: vars accessed under the marshal lock */
9731 static ArrayElemAddr *elem_addr_cache = NULL;
9732 static int elem_addr_cache_size = 0;
9733 static int elem_addr_cache_next = 0;
9736 * mono_marshal_get_array_address:
9737 * @rank: rank of the array type
9738 * @elem_size: size in bytes of an element of an array.
9740 * Returns a MonoMethd that implements the code to get the address
9741 * of an element in a multi-dimenasional array of @rank dimensions.
9742 * The returned method takes an array as the first argument and then
9743 * @rank indexes for the @rank dimensions.
9746 mono_marshal_get_array_address (int rank, int elem_size)
9749 MonoMethodBuilder *mb;
9750 MonoMethodSignature *sig;
9751 int i, bounds, ind, realidx;
9752 int branch_pos, *branch_positions;
9756 mono_marshal_lock ();
9757 for (i = 0; i < elem_addr_cache_next; ++i) {
9758 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9759 ret = elem_addr_cache [i].method;
9763 mono_marshal_unlock ();
9767 branch_positions = g_new0 (int, rank);
9769 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9771 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9772 sig->ret = &mono_defaults.int_class->byval_arg;
9773 sig->params [0] = &mono_defaults.object_class->byval_arg;
9774 for (i = 0; i < rank; ++i) {
9775 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9778 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9780 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9781 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9782 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9784 /* bounds = array->bounds; */
9785 mono_mb_emit_ldarg (mb, 0);
9786 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9787 mono_mb_emit_byte (mb, CEE_LDIND_I);
9788 mono_mb_emit_stloc (mb, bounds);
9790 /* ind is the overall element index, realidx is the partial index in a single dimension */
9791 /* ind = idx0 - bounds [0].lower_bound */
9792 mono_mb_emit_ldarg (mb, 1);
9793 mono_mb_emit_ldloc (mb, bounds);
9794 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9795 mono_mb_emit_byte (mb, CEE_ADD);
9796 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9797 mono_mb_emit_byte (mb, CEE_SUB);
9798 mono_mb_emit_stloc (mb, ind);
9799 /* if (ind >= bounds [0].length) goto exeception; */
9800 mono_mb_emit_ldloc (mb, ind);
9801 mono_mb_emit_ldloc (mb, bounds);
9802 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9803 mono_mb_emit_byte (mb, CEE_ADD);
9804 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9805 /* note that we use unsigned comparison */
9806 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9808 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9809 * We could also decide to ignore the passed elem_size and get it
9810 * from the array object, to reduce the number of methods we generate:
9811 * the additional cost is 3 memory loads and a non-immediate mul.
9813 for (i = 1; i < rank; ++i) {
9814 /* realidx = idxi - bounds [i].lower_bound */
9815 mono_mb_emit_ldarg (mb, 1 + i);
9816 mono_mb_emit_ldloc (mb, bounds);
9817 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9818 mono_mb_emit_byte (mb, CEE_ADD);
9819 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9820 mono_mb_emit_byte (mb, CEE_SUB);
9821 mono_mb_emit_stloc (mb, realidx);
9822 /* if (realidx >= bounds [i].length) goto exeception; */
9823 mono_mb_emit_ldloc (mb, realidx);
9824 mono_mb_emit_ldloc (mb, bounds);
9825 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9826 mono_mb_emit_byte (mb, CEE_ADD);
9827 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9828 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9829 /* ind = ind * bounds [i].length + realidx */
9830 mono_mb_emit_ldloc (mb, ind);
9831 mono_mb_emit_ldloc (mb, bounds);
9832 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9833 mono_mb_emit_byte (mb, CEE_ADD);
9834 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9835 mono_mb_emit_byte (mb, CEE_MUL);
9836 mono_mb_emit_ldloc (mb, realidx);
9837 mono_mb_emit_byte (mb, CEE_ADD);
9838 mono_mb_emit_stloc (mb, ind);
9841 /* return array->vector + ind * element_size */
9842 mono_mb_emit_ldarg (mb, 0);
9843 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9844 mono_mb_emit_ldloc (mb, ind);
9845 mono_mb_emit_icon (mb, elem_size);
9846 mono_mb_emit_byte (mb, CEE_MUL);
9847 mono_mb_emit_byte (mb, CEE_ADD);
9848 mono_mb_emit_byte (mb, CEE_RET);
9850 /* patch the branches to get here and throw */
9851 for (i = 1; i < rank; ++i) {
9852 mono_mb_patch_branch (mb, branch_positions [i]);
9854 mono_mb_patch_branch (mb, branch_pos);
9855 /* throw exception */
9856 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9858 g_free (branch_positions);
9859 ret = mono_mb_create_method (mb, sig, 4);
9862 /* cache the result */
9864 mono_marshal_lock ();
9865 for (i = 0; i < elem_addr_cache_next; ++i) {
9866 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9867 /* FIXME: free ret */
9868 ret = elem_addr_cache [i].method;
9874 if (elem_addr_cache_next >= elem_addr_cache_size) {
9875 int new_size = elem_addr_cache_size + 4;
9876 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9877 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9878 g_free (elem_addr_cache);
9879 elem_addr_cache = new_array;
9880 elem_addr_cache_size = new_size;
9882 elem_addr_cache [elem_addr_cache_next].rank = rank;
9883 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9884 elem_addr_cache [elem_addr_cache_next].method = ret;
9886 mono_marshal_unlock ();
9891 mono_marshal_get_write_barrier (void)
9893 static MonoMethod* ret = NULL;
9894 MonoMethodSignature *sig;
9895 MonoMethodBuilder *mb;
9901 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
9903 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9905 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
9906 sig->ret = &mono_defaults.void_class->byval_arg;
9907 sig->params [0] = &mono_defaults.object_class->this_arg;
9908 sig->params [1] = &mono_defaults.object_class->byval_arg;
9910 /* just the store right now: add an hook for the GC to use, maybe something
9911 * that can be used for stelemref as well
9912 * We need a write barrier variant to be used with struct copies as well, though
9913 * there are also other approaches possible, like writing a wrapper specific to
9914 * the struct or to the reference pattern in the struct...
9915 * Depending on the GC, we may want variants that take the object we store to
9916 * when it is available.
9918 mono_mb_emit_ldarg (mb, 0);
9919 mono_mb_emit_ldarg (mb, 1);
9920 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
9921 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
9923 mono_mb_emit_byte (mb, CEE_RET);
9925 ret = mono_mb_create_method (mb, sig, max_stack);
9931 mono_marshal_alloc (gulong size)
9935 #ifdef PLATFORM_WIN32
9936 res = CoTaskMemAlloc (size);
9938 res = g_try_malloc ((gulong)size);
9940 mono_gc_out_of_memory ((gulong)size);
9946 mono_marshal_free (gpointer ptr)
9948 #ifdef PLATFORM_WIN32
9949 CoTaskMemFree (ptr);
9956 mono_marshal_free_array (gpointer *ptr, int size)
9963 for (i = 0; i < size; i++)
9969 mono_marshal_string_to_utf16 (MonoString *s)
9971 return s ? mono_string_chars (s) : NULL;
9975 mono_marshal_string_to_utf16_copy (MonoString *s)
9980 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9981 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9982 res [mono_string_length (s)] = 0;
9988 * mono_marshal_set_last_error:
9990 * This function is invoked to set the last error value from a P/Invoke call
9991 * which has SetLastError set.
9994 mono_marshal_set_last_error (void)
9997 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9999 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
10004 mono_marshal_set_last_error_windows (int error)
10007 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
10012 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10013 gpointer dest, gint32 length)
10018 MONO_ARCH_SAVE_REGS;
10020 MONO_CHECK_ARG_NULL (src);
10021 MONO_CHECK_ARG_NULL (dest);
10023 if (src->obj.vtable->klass->rank != 1)
10024 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10025 if (start_index < 0)
10026 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10028 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10029 if (start_index + length > mono_array_length (src))
10030 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10032 element_size = mono_array_element_size (src->obj.vtable->klass);
10034 /* no references should be involved */
10035 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10037 memcpy (dest, source_addr, length * element_size);
10041 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10042 MonoArray *dest, gint32 length)
10047 MONO_ARCH_SAVE_REGS;
10049 MONO_CHECK_ARG_NULL (src);
10050 MONO_CHECK_ARG_NULL (dest);
10052 if (dest->obj.vtable->klass->rank != 1)
10053 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10054 if (start_index < 0)
10055 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10057 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10058 if (start_index + length > mono_array_length (dest))
10059 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10061 element_size = mono_array_element_size (dest->obj.vtable->klass);
10063 /* no references should be involved */
10064 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10066 memcpy (dest_addr, src, length * element_size);
10069 #if NO_UNALIGNED_ACCESS
10070 #define RETURN_UNALIGNED(type, addr) \
10073 memcpy(&val, p + offset, sizeof(val)); \
10076 #define WRITE_UNALIGNED(type, addr, val) \
10077 memcpy(addr, &val, sizeof(type))
10079 #define RETURN_UNALIGNED(type, addr) \
10080 return *(type*)(p + offset);
10081 #define WRITE_UNALIGNED(type, addr, val) \
10082 (*(type *)(addr) = (val))
10086 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10090 MONO_ARCH_SAVE_REGS;
10092 RETURN_UNALIGNED(gpointer, p + offset);
10096 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10100 MONO_ARCH_SAVE_REGS;
10102 return *(unsigned char*)(p + offset);
10106 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10110 MONO_ARCH_SAVE_REGS;
10112 RETURN_UNALIGNED(gint16, p + offset);
10116 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10120 MONO_ARCH_SAVE_REGS;
10122 RETURN_UNALIGNED(gint32, p + offset);
10126 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10130 MONO_ARCH_SAVE_REGS;
10132 RETURN_UNALIGNED(gint64, p + offset);
10136 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10140 MONO_ARCH_SAVE_REGS;
10142 *(unsigned char*)(p + offset) = val;
10146 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10150 MONO_ARCH_SAVE_REGS;
10152 WRITE_UNALIGNED(gpointer, p + offset, val);
10156 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10160 MONO_ARCH_SAVE_REGS;
10162 WRITE_UNALIGNED(gint16, p + offset, val);
10166 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10170 MONO_ARCH_SAVE_REGS;
10172 WRITE_UNALIGNED(gint32, p + offset, val);
10176 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10180 MONO_ARCH_SAVE_REGS;
10182 WRITE_UNALIGNED(gint64, p + offset, val);
10186 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10188 MONO_ARCH_SAVE_REGS;
10193 return mono_string_new (mono_domain_get (), ptr);
10197 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10199 MONO_ARCH_SAVE_REGS;
10202 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10203 g_assert_not_reached ();
10206 return mono_string_new_len (mono_domain_get (), ptr, len);
10211 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10213 MonoDomain *domain = mono_domain_get ();
10217 MONO_ARCH_SAVE_REGS;
10225 return mono_string_new_utf16 (domain, ptr, len);
10229 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10231 MonoDomain *domain = mono_domain_get ();
10233 MONO_ARCH_SAVE_REGS;
10236 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10237 g_assert_not_reached ();
10240 return mono_string_new_utf16 (domain, ptr, len);
10245 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
10247 MONO_ARCH_SAVE_REGS;
10249 return mono_string_from_bstr(ptr);
10253 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
10255 MONO_ARCH_SAVE_REGS;
10257 return mono_string_to_bstr(ptr);
10262 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
10263 int (STDCALL *AddRef)(gpointer pUnk);
10264 int (STDCALL *Release)(gpointer pUnk);
10268 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
10270 MONO_ARCH_SAVE_REGS;
10272 mono_free_bstr (ptr);
10276 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
10279 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
10283 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
10286 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
10290 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
10293 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
10297 cominterop_get_idispatch_for_object (MonoObject* object)
10302 if (cominterop_object_is_rcw (object)) {
10303 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
10304 mono_defaults.idispatch_class, TRUE);
10307 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
10312 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
10317 if (cominterop_object_is_rcw (object)) {
10318 MonoClass *klass = NULL;
10319 MonoRealProxy* real_proxy = NULL;
10322 klass = mono_object_class (object);
10323 if (klass != mono_defaults.transparent_proxy_class) {
10324 g_assert_not_reached ();
10328 real_proxy = ((MonoTransparentProxy*)object)->rp;
10330 g_assert_not_reached ();
10334 klass = mono_object_class (real_proxy);
10335 if (klass != mono_defaults.com_interop_proxy_class) {
10336 g_assert_not_reached ();
10340 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10341 g_assert_not_reached ();
10345 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10348 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10353 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10355 MonoObject* object = NULL;
10360 /* see if it is a CCW */
10361 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10367 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10369 return cominterop_get_idispatch_for_object (object);
10373 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10375 MonoClass* klass = NULL;
10378 g_assert (type->type);
10379 klass = mono_type_get_class (type->type);
10381 itf = cominterop_get_ccw (object, klass);
10388 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10390 return (MonoBoolean)cominterop_object_is_rcw (object);
10394 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10396 MonoComInteropProxy* proxy = NULL;
10397 gint32 ref_count = 0;
10400 g_assert (cominterop_object_is_rcw (object));
10402 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10405 ref_count = InterlockedDecrement (&proxy->ref_count);
10406 g_assert (ref_count >= 0);
10408 if (ref_count == 0)
10409 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10415 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10417 MONO_ARCH_SAVE_REGS;
10419 return cominterop_get_com_slot_for_method (m->method);
10423 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10425 MONO_ARCH_SAVE_REGS;
10427 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10431 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10437 MONO_ARCH_SAVE_REGS;
10439 MONO_CHECK_ARG_NULL (rtype);
10441 type = rtype->type;
10442 klass = mono_class_from_mono_type (type);
10443 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10445 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10447 MonoException *exc;
10449 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10450 exc = mono_get_exception_argument ("t", msg);
10452 mono_raise_exception (exc);
10456 return mono_class_native_size (klass, NULL);
10460 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10462 MonoMethod *method;
10465 MONO_ARCH_SAVE_REGS;
10467 MONO_CHECK_ARG_NULL (obj);
10468 MONO_CHECK_ARG_NULL (dst);
10470 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10474 pa [2] = &delete_old;
10476 mono_runtime_invoke (method, NULL, pa, NULL);
10480 ptr_to_structure (gpointer src, MonoObject *dst)
10482 MonoMethod *method;
10485 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10490 mono_runtime_invoke (method, NULL, pa, NULL);
10494 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10498 MONO_ARCH_SAVE_REGS;
10500 MONO_CHECK_ARG_NULL (src);
10501 MONO_CHECK_ARG_NULL (dst);
10503 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10505 if (t->type == MONO_TYPE_VALUETYPE) {
10506 MonoException *exc;
10509 tmp = g_strdup_printf ("Destination is a boxed value type.");
10510 exc = mono_get_exception_argument ("dst", tmp);
10513 mono_raise_exception (exc);
10517 ptr_to_structure (src, dst);
10521 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10523 MonoDomain *domain = mono_domain_get ();
10526 MONO_ARCH_SAVE_REGS;
10528 MONO_CHECK_ARG_NULL (src);
10529 MONO_CHECK_ARG_NULL (type);
10531 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10533 ptr_to_structure (src, res);
10539 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10541 MonoMarshalType *info;
10544 int match_index = -1;
10546 MONO_ARCH_SAVE_REGS;
10548 MONO_CHECK_ARG_NULL (type);
10549 MONO_CHECK_ARG_NULL (field_name);
10551 fname = mono_string_to_utf8 (field_name);
10552 klass = mono_class_from_mono_type (type->type);
10554 while (klass && match_index == -1) {
10555 MonoClassField* field;
10557 gpointer iter = NULL;
10558 while ((field = mono_class_get_fields (klass, &iter))) {
10559 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10561 if (!strcmp (fname, field->name)) {
10568 if (match_index == -1)
10569 klass = klass->parent;
10574 if(match_index == -1) {
10575 MonoException* exc;
10578 /* Get back original class instance */
10579 klass = mono_class_from_mono_type (type->type);
10581 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10582 exc = mono_get_exception_argument ("fieldName", tmp);
10585 mono_raise_exception ((MonoException*)exc);
10588 info = mono_marshal_load_type_info (klass);
10589 return info->fields [match_index].offset;
10593 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10595 MONO_ARCH_SAVE_REGS;
10597 return mono_string_to_utf8 (string);
10601 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10603 MONO_ARCH_SAVE_REGS;
10605 if (string == NULL)
10608 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10609 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10610 res [mono_string_length (string)] = 0;
10616 mono_struct_delete_old (MonoClass *klass, char *ptr)
10618 MonoMarshalType *info;
10621 info = mono_marshal_load_type_info (klass);
10623 for (i = 0; i < info->num_fields; i++) {
10624 MonoMarshalNative ntype;
10625 MonoMarshalConv conv;
10626 MonoType *ftype = info->fields [i].field->type;
10629 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10632 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10633 klass->unicode, &conv);
10635 cpos = ptr + info->fields [i].offset;
10638 case MONO_MARSHAL_CONV_NONE:
10639 if (MONO_TYPE_ISSTRUCT (ftype)) {
10640 mono_struct_delete_old (ftype->data.klass, cpos);
10644 case MONO_MARSHAL_CONV_STR_LPWSTR:
10645 /* We assume this field points inside a MonoString */
10647 case MONO_MARSHAL_CONV_STR_LPTSTR:
10648 #ifdef PLATFORM_WIN32
10649 /* We assume this field points inside a MonoString
10653 case MONO_MARSHAL_CONV_STR_LPSTR:
10654 case MONO_MARSHAL_CONV_STR_BSTR:
10655 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10656 case MONO_MARSHAL_CONV_STR_TBSTR:
10657 mono_marshal_free (*(gpointer *)cpos);
10667 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10671 MONO_ARCH_SAVE_REGS;
10673 MONO_CHECK_ARG_NULL (src);
10674 MONO_CHECK_ARG_NULL (type);
10676 klass = mono_class_from_mono_type (type->type);
10678 mono_struct_delete_old (klass, (char *)src);
10682 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10686 MONO_ARCH_SAVE_REGS;
10688 if ((gulong)size == 0)
10689 /* This returns a valid pointer for size 0 on MS.NET */
10692 #ifdef PLATFORM_WIN32
10693 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10695 res = g_try_malloc ((gulong)size);
10698 mono_gc_out_of_memory ((gulong)size);
10704 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10709 mono_gc_out_of_memory ((gulong)size);
10713 #ifdef PLATFORM_WIN32
10714 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10716 res = g_try_realloc (ptr, (gulong)size);
10719 mono_gc_out_of_memory ((gulong)size);
10725 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10727 MONO_ARCH_SAVE_REGS;
10729 #ifdef PLATFORM_WIN32
10737 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10739 MONO_ARCH_SAVE_REGS;
10741 #ifdef PLATFORM_WIN32
10742 return CoTaskMemAlloc (size);
10744 return g_try_malloc ((gulong)size);
10749 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10751 MONO_ARCH_SAVE_REGS;
10753 #ifdef PLATFORM_WIN32
10754 CoTaskMemFree (ptr);
10761 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10763 MONO_ARCH_SAVE_REGS;
10765 #ifdef PLATFORM_WIN32
10766 return CoTaskMemRealloc (ptr, size);
10768 return g_try_realloc (ptr, (gulong)size);
10773 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10775 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10779 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10781 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10784 /* Only used for COM RCWs */
10786 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10789 MonoDomain *domain;
10792 MONO_ARCH_SAVE_REGS;
10794 domain = mono_object_domain (type);
10795 klass = mono_class_from_mono_type (type->type);
10797 /* call mono_object_new_alloc_specific instead of mono_object_new
10798 * because we want to actually create object. mono_object_new checks
10799 * to see if type is import and creates transparent proxy. this method
10800 * is called by the corresponding real proxy to create the real RCW.
10801 * Constructor does not need to be called. Will be called later.
10803 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10808 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10810 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10815 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10818 if (obj->itf_hash) {
10819 guint32 gchandle = 0;
10820 mono_cominterop_lock ();
10821 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10823 mono_gchandle_free (gchandle);
10824 g_hash_table_remove (rcw_hash, obj->iunknown);
10827 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10828 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10829 obj->itf_hash = obj->iunknown = NULL;
10830 mono_cominterop_unlock ();
10835 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
10837 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
10841 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
10843 guint32 gchandle = 0;
10845 mono_cominterop_lock ();
10846 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
10847 mono_cominterop_unlock ();
10850 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
10852 mono_cominterop_lock ();
10853 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
10854 mono_cominterop_unlock ();
10857 MonoComInteropProxy*
10858 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
10860 MonoComInteropProxy* proxy = NULL;
10861 guint32 gchandle = 0;
10863 mono_cominterop_lock ();
10865 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
10866 mono_cominterop_unlock ();
10868 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
10869 /* proxy is null means we need to free up old RCW */
10871 mono_gchandle_free (gchandle);
10872 g_hash_table_remove (rcw_hash, pUnk);
10879 * mono_marshal_is_loading_type_info:
10881 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10885 mono_marshal_is_loading_type_info (MonoClass *klass)
10887 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10889 return g_slist_find (loads_list, klass) != NULL;
10893 * mono_marshal_load_type_info:
10895 * Initialize klass->marshal_info using information from metadata. This function can
10896 * recursively call itself, and the caller is responsible to avoid that by calling
10897 * mono_marshal_is_loading_type_info () beforehand.
10899 * LOCKING: Acquires the loader lock.
10902 mono_marshal_load_type_info (MonoClass* klass)
10905 guint32 native_size = 0, min_align = 1;
10906 MonoMarshalType *info;
10907 MonoClassField* field;
10910 GSList *loads_list;
10912 g_assert (klass != NULL);
10914 if (klass->marshal_info)
10915 return klass->marshal_info;
10917 if (!klass->inited)
10918 mono_class_init (klass);
10920 mono_loader_lock ();
10922 if (klass->marshal_info) {
10923 mono_loader_unlock ();
10924 return klass->marshal_info;
10928 * This function can recursively call itself, so we keep the list of classes which are
10929 * under initialization in a TLS list.
10931 g_assert (!mono_marshal_is_loading_type_info (klass));
10932 loads_list = TlsGetValue (load_type_info_tls_id);
10933 loads_list = g_slist_prepend (loads_list, klass);
10934 TlsSetValue (load_type_info_tls_id, loads_list);
10937 while ((field = mono_class_get_fields (klass, &iter))) {
10938 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10940 if (mono_field_is_deleted (field))
10945 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10947 /* The mempool is protected by the loader lock */
10948 info = mono_mempool_alloc0 (klass->image->mempool, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
10949 info->num_fields = count;
10951 /* Try to find a size for this type in metadata */
10952 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10954 if (klass->parent) {
10955 int parent_size = mono_class_native_size (klass->parent, NULL);
10957 /* Add parent size to real size */
10958 native_size += parent_size;
10959 info->native_size = parent_size;
10964 while ((field = mono_class_get_fields (klass, &iter))) {
10968 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10971 if (mono_field_is_deleted (field))
10973 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10974 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10975 NULL, NULL, &info->fields [j].mspec);
10977 info->fields [j].field = field;
10979 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10980 (strcmp (field->name, "$PRIVATE$") == 0)) {
10981 /* This field is a hack inserted by MCS to empty structures */
10986 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10987 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10988 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10989 &align, TRUE, klass->unicode);
10990 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10991 min_align = MAX (align, min_align);
10992 info->fields [j].offset = info->native_size;
10993 info->fields [j].offset += align - 1;
10994 info->fields [j].offset &= ~(align - 1);
10995 info->native_size = info->fields [j].offset + size;
10997 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10998 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10999 &align, TRUE, klass->unicode);
11000 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11001 min_align = MAX (align, min_align);
11002 info->fields [j].offset = field->offset - sizeof (MonoObject);
11003 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11009 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11010 info->native_size = MAX (native_size, info->native_size);
11013 if (info->native_size & (min_align - 1)) {
11014 info->native_size += min_align - 1;
11015 info->native_size &= ~(min_align - 1);
11018 /* Update the class's blittable info, if the layouts don't match */
11019 if (info->native_size != mono_class_value_size (klass, NULL))
11020 klass->blittable = FALSE;
11022 /* If this is an array type, ensure that we have element info */
11023 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
11024 mono_marshal_load_type_info (klass->element_class);
11027 loads_list = TlsGetValue (load_type_info_tls_id);
11028 loads_list = g_slist_remove (loads_list, klass);
11029 TlsSetValue (load_type_info_tls_id, loads_list);
11031 klass->marshal_info = info;
11033 mono_loader_unlock ();
11035 return klass->marshal_info;
11039 * mono_class_native_size:
11042 * Returns: the native size of an object instance (when marshaled
11043 * to unmanaged code)
11046 mono_class_native_size (MonoClass *klass, guint32 *align)
11048 if (!klass->marshal_info) {
11049 if (mono_marshal_is_loading_type_info (klass))
11052 mono_marshal_load_type_info (klass);
11056 *align = klass->min_align;
11058 return klass->marshal_info->native_size;
11062 * mono_type_native_stack_size:
11063 * @t: the type to return the size it uses on the stack
11065 * Returns: the number of bytes required to hold an instance of this
11066 * type on the native stack
11069 mono_type_native_stack_size (MonoType *t, guint32 *align)
11073 g_assert (t != NULL);
11084 case MONO_TYPE_BOOLEAN:
11085 case MONO_TYPE_CHAR:
11094 case MONO_TYPE_STRING:
11095 case MONO_TYPE_OBJECT:
11096 case MONO_TYPE_CLASS:
11097 case MONO_TYPE_SZARRAY:
11098 case MONO_TYPE_PTR:
11099 case MONO_TYPE_FNPTR:
11100 case MONO_TYPE_ARRAY:
11101 case MONO_TYPE_TYPEDBYREF:
11112 case MONO_TYPE_VALUETYPE: {
11115 if (t->data.klass->enumtype)
11116 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
11118 size = mono_class_native_size (t->data.klass, align);
11119 *align = *align + 3;
11129 g_error ("type 0x%02x unknown", t->type);
11134 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11135 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11136 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11137 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11140 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11141 gboolean as_field, gboolean unicode)
11143 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11146 switch (native_type) {
11147 case MONO_NATIVE_BOOLEAN:
11150 case MONO_NATIVE_I1:
11151 case MONO_NATIVE_U1:
11154 case MONO_NATIVE_I2:
11155 case MONO_NATIVE_U2:
11156 case MONO_NATIVE_VARIANTBOOL:
11159 case MONO_NATIVE_I4:
11160 case MONO_NATIVE_U4:
11161 case MONO_NATIVE_ERROR:
11164 case MONO_NATIVE_I8:
11165 case MONO_NATIVE_U8:
11166 *align = ALIGNMENT(guint64);
11168 case MONO_NATIVE_R4:
11171 case MONO_NATIVE_R8:
11172 *align = ALIGNMENT(double);
11174 case MONO_NATIVE_INT:
11175 case MONO_NATIVE_UINT:
11176 case MONO_NATIVE_LPSTR:
11177 case MONO_NATIVE_LPWSTR:
11178 case MONO_NATIVE_LPTSTR:
11179 case MONO_NATIVE_BSTR:
11180 case MONO_NATIVE_ANSIBSTR:
11181 case MONO_NATIVE_TBSTR:
11182 case MONO_NATIVE_LPARRAY:
11183 case MONO_NATIVE_SAFEARRAY:
11184 case MONO_NATIVE_IUNKNOWN:
11185 case MONO_NATIVE_IDISPATCH:
11186 case MONO_NATIVE_INTERFACE:
11187 case MONO_NATIVE_ASANY:
11188 case MONO_NATIVE_FUNC:
11189 case MONO_NATIVE_LPSTRUCT:
11190 *align = ALIGNMENT(gpointer);
11191 return sizeof (gpointer);
11192 case MONO_NATIVE_STRUCT:
11193 klass = mono_class_from_mono_type (type);
11194 if (klass == mono_defaults.object_class &&
11195 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11199 return mono_class_native_size (klass, align);
11200 case MONO_NATIVE_BYVALTSTR: {
11201 int esize = unicode ? 2: 1;
11204 return mspec->data.array_data.num_elem * esize;
11206 case MONO_NATIVE_BYVALARRAY: {
11207 // FIXME: Have to consider ArraySubType
11209 klass = mono_class_from_mono_type (type);
11210 if (klass->element_class == mono_defaults.char_class) {
11211 esize = unicode ? 2 : 1;
11214 esize = mono_class_native_size (klass->element_class, align);
11217 return mspec->data.array_data.num_elem * esize;
11219 case MONO_NATIVE_CUSTOM:
11220 *align = sizeof (gpointer);
11221 return sizeof (gpointer);
11223 case MONO_NATIVE_CURRENCY:
11224 case MONO_NATIVE_VBBYREFSTR:
11226 g_error ("native type %02x not implemented", native_type);
11229 g_assert_not_reached ();
11234 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11242 t = &o->vtable->klass->byval_arg;
11246 case MONO_TYPE_PTR:
11249 case MONO_TYPE_BOOLEAN:
11252 case MONO_TYPE_CHAR:
11257 return mono_object_unbox (o);
11259 case MONO_TYPE_STRING:
11260 switch (string_encoding) {
11261 case MONO_NATIVE_LPWSTR:
11262 return mono_string_to_utf16 ((MonoString*)o);
11264 case MONO_NATIVE_LPSTR:
11265 return mono_string_to_lpstr ((MonoString*)o);
11268 g_warning ("marshaling conversion %d not implemented", string_encoding);
11269 g_assert_not_reached ();
11272 case MONO_TYPE_CLASS:
11273 case MONO_TYPE_VALUETYPE: {
11274 MonoMethod *method;
11277 MonoBoolean delete_old = FALSE;
11279 klass = t->data.klass;
11281 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11284 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11285 klass->blittable || klass->enumtype))
11286 return mono_object_unbox (o);
11288 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11290 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11291 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11295 pa [2] = &delete_old;
11297 mono_runtime_invoke (method, NULL, pa, NULL);
11304 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11310 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11318 t = &o->vtable->klass->byval_arg;
11320 case MONO_TYPE_STRING:
11321 switch (string_encoding) {
11322 case MONO_NATIVE_LPWSTR:
11323 case MONO_NATIVE_LPSTR:
11324 mono_marshal_free (ptr);
11327 g_warning ("marshaling conversion %d not implemented", string_encoding);
11328 g_assert_not_reached ();
11331 case MONO_TYPE_CLASS:
11332 case MONO_TYPE_VALUETYPE: {
11333 klass = t->data.klass;
11335 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11336 klass->blittable || klass->enumtype))
11339 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11340 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11346 mono_runtime_invoke (method, NULL, pa, NULL);
11349 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11350 mono_struct_delete_old (klass, ptr);
11353 mono_marshal_free (ptr);
11362 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11364 MonoMethodSignature *sig, *csig;
11365 MonoMethodBuilder *mb;
11369 mb = mono_mb_new (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11370 mb->method->slot = -1;
11372 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11373 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11375 sig = mono_method_signature (method);
11376 csig = signature_dup (method->klass->image, sig);
11377 csig->generic_param_count = 0;
11379 mono_mb_emit_ldarg (mb, 0);
11380 for (i = 0; i < csig->param_count; i++)
11381 mono_mb_emit_ldarg (mb, i + 1);
11382 mono_mb_emit_managed_call (mb, method, NULL);
11383 mono_mb_emit_byte (mb, CEE_RET);
11385 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11393 * The mono_win32_compat_* functions are implementations of inline
11394 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11395 * although not exported by kernel32.
11397 * We map the appropiate kernel32 entries to these functions using
11398 * dllmaps declared in the global etc/mono/config.
11402 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11404 if (!dest || !source)
11407 memcpy (dest, source, length);
11411 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11413 memset (dest, fill, length);
11417 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11419 if (!dest || !source)
11422 memmove (dest, source, length);
11426 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11428 memset (dest, 0, length);
11431 /* Put COM Interop related stuff here */
11434 * cominterop_get_ccw_object:
11435 * @ccw_entry: a pointer to the CCWEntry
11436 * @verify: verify ccw_entry is in fact a ccw
11438 * Returns: the corresponding object for the CCW
11441 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11443 MonoCCW *ccw = NULL;
11445 /* no CCW's exist yet */
11446 if (!ccw_interface_hash)
11450 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11453 ccw = ccw_entry->ccw;
11457 return mono_gchandle_get_target (ccw->gc_handle);
11463 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11465 MonoMethodSignature *sig, *csig;
11466 sig = mono_method_signature (method);
11467 /* we copy the signature, so that we can modify it */
11468 /* FIXME: which to use? */
11469 csig = signature_dup (method->klass->image, sig);
11470 /* csig = mono_metadata_signature_dup (sig); */
11472 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11473 #ifdef PLATFORM_WIN32
11474 csig->call_convention = MONO_CALL_STDCALL;
11476 csig->call_convention = MONO_CALL_C;
11481 m->image = method->klass->image;
11489 * cominterop_get_ccw:
11490 * @object: a pointer to the object
11491 * @itf: interface type needed
11493 * Returns: a value indicating if the object is a
11494 * Runtime Callable Wrapper (RCW) for a COM object
11497 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11500 MonoCCW *ccw = NULL;
11501 MonoCCWInterface* ccw_entry = NULL;
11502 gpointer *vtable = NULL;
11503 static gpointer iunknown[3] = {NULL, NULL, NULL};
11504 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11505 MonoClass* iface = NULL;
11506 MonoClass* klass = NULL;
11507 EmitMarshalContext m;
11508 int start_slot = 3;
11509 int method_count = 0;
11510 GList *ccw_list, *ccw_list_item;
11511 MonoCustomAttrInfo *cinfo = NULL;
11516 klass = mono_object_get_class (object);
11519 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11520 if (!ccw_interface_hash)
11521 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11523 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11525 ccw_list_item = ccw_list;
11526 while (ccw_list_item) {
11527 MonoCCW* ccw_iter = ccw_list_item->data;
11528 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11532 ccw_list_item = g_list_next(ccw_list_item);
11535 if (!iunknown [0]) {
11536 iunknown [0] = cominterop_ccw_queryinterface;
11537 iunknown [1] = cominterop_ccw_addref;
11538 iunknown [2] = cominterop_ccw_release;
11541 if (!idispatch [0]) {
11542 idispatch [0] = cominterop_ccw_get_type_info_count;
11543 idispatch [1] = cominterop_ccw_get_type_info;
11544 idispatch [2] = cominterop_ccw_get_ids_of_names;
11545 idispatch [3] = cominterop_ccw_invoke;
11549 ccw = g_new0 (MonoCCW, 1);
11550 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11551 ccw->ref_count = 0;
11552 /* just alloc a weak handle until we are addref'd*/
11553 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11556 ccw_list = g_list_alloc ();
11557 ccw_list->data = ccw;
11560 ccw_list = g_list_append (ccw_list, ccw);
11561 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11562 /* register for finalization to clean up ccw */
11563 mono_object_register_finalizer (object);
11566 cinfo = mono_custom_attrs_from_class (itf);
11568 static MonoClass* coclass_attribute = NULL;
11569 if (!coclass_attribute)
11570 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11571 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11572 g_assert(itf->interface_count && itf->interfaces[0]);
11573 itf = itf->interfaces[0];
11575 if (!cinfo->cached)
11576 mono_custom_attrs_free (cinfo);
11580 if (iface == mono_defaults.iunknown_class) {
11583 else if (iface == mono_defaults.idispatch_class) {
11587 method_count += iface->method.count;
11588 start_slot = cominterop_get_com_slot_begin (iface);
11592 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11595 int vtable_index = method_count-1+start_slot;
11596 mono_loader_lock ();
11597 vtable = mono_mempool_alloc0 (klass->image->mempool, sizeof (gpointer)*(method_count+start_slot));
11598 mono_loader_unlock ();
11599 memcpy (vtable, iunknown, sizeof (iunknown));
11600 if (start_slot == 7)
11601 memcpy (vtable+3, idispatch, sizeof (idispatch));
11604 for (i = iface->method.count-1; i >= 0;i--) {
11605 int param_index = 0;
11606 MonoMethodBuilder *mb;
11607 MonoMarshalSpec ** mspecs;
11608 MonoMethod *wrapper_method, *adjust_method;
11609 MonoMethod *method = iface->methods [i];
11610 MonoMethodSignature* sig_adjusted;
11611 MonoMethodSignature* sig = mono_method_signature (method);
11612 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11615 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11616 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11617 sig_adjusted = mono_method_signature (adjust_method);
11619 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11620 mono_method_get_marshal_info (method, mspecs);
11623 /* move managed args up one */
11624 for (param_index = sig->param_count; param_index >= 1; param_index--)
11625 mspecs [param_index+1] = mspecs [param_index];
11627 /* first arg is IntPtr for interface */
11630 /* move return spec to last param */
11631 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11632 mspecs [sig_adjusted->param_count] = mspecs [0];
11636 cominterop_setup_marshal_context (&m, adjust_method);
11638 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11639 mono_loader_lock ();
11640 mono_marshal_lock ();
11641 wrapper_method = mono_mb_create_method (mb, sig_adjusted, sig_adjusted->param_count + 16);
11642 mono_marshal_unlock ();
11643 mono_loader_unlock ();
11645 /* skip visiblity since we call internal methods */
11646 wrapper_method->skip_visibility = TRUE;
11648 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11651 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11652 if (mspecs [param_index])
11653 mono_metadata_free_marshal_spec (mspecs [param_index]);
11657 ccw_entry = g_new0 (MonoCCWInterface, 1);
11658 ccw_entry->ccw = ccw;
11659 ccw_entry->vtable = vtable;
11660 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11661 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11668 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11676 * mono_marshal_free_ccw:
11677 * @object: the mono object
11679 * Returns: whether the object had a CCW
11682 mono_marshal_free_ccw (MonoObject* object)
11684 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11685 /* no ccw's were created */
11686 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11689 /* need to cache orig list address to remove from hash_table if empty */
11690 mono_cominterop_lock ();
11691 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11692 mono_cominterop_unlock ();
11697 ccw_list_item = ccw_list;
11698 while (ccw_list_item) {
11699 MonoCCW* ccw_iter = ccw_list_item->data;
11700 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11702 /* Looks like the GC NULLs the weakref handle target before running the
11703 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11704 if (!handle_target || handle_target == object) {
11705 /* remove all interfaces */
11706 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11707 g_hash_table_destroy (ccw_iter->vtable_hash);
11709 /* get next before we delete */
11710 ccw_list_item = g_list_next(ccw_list_item);
11712 /* remove ccw from list */
11713 ccw_list = g_list_remove (ccw_list, ccw_iter);
11717 ccw_list_item = g_list_next(ccw_list_item);
11720 /* if list is empty remove original address from hash */
11721 if (g_list_length (ccw_list) == 0)
11722 g_hash_table_remove (ccw_hash, ccw_list_orig);
11729 * cominterop_get_native_wrapper_adjusted:
11730 * @method: managed COM Interop method
11732 * Returns: the generated method to call with signature matching
11733 * the unmanaged COM Method signature
11735 static MonoMethod *
11736 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11738 static MonoMethod *get_hr_for_exception = NULL;
11739 MonoMethod *res = NULL;
11740 MonoMethodBuilder *mb;
11741 MonoMarshalSpec **mspecs;
11742 MonoMethodSignature *sig, *sig_native;
11743 MonoExceptionClause *main_clause = NULL;
11744 MonoMethodHeader *header;
11748 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11750 if (!get_hr_for_exception)
11751 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11753 sig = mono_method_signature (method);
11755 /* create unmanaged wrapper */
11756 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11758 sig_native = cominterop_method_signature (method);
11760 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11762 mono_method_get_marshal_info (method, mspecs);
11764 /* move managed args up one */
11765 for (i = sig->param_count; i >= 1; i--)
11766 mspecs [i+1] = mspecs [i];
11768 /* first arg is IntPtr for interface */
11771 /* move return spec to last param */
11772 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11773 mspecs [sig_native->param_count] = mspecs [0];
11777 if (!preserve_sig) {
11778 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11781 main_clause = g_new0 (MonoExceptionClause, 1);
11782 main_clause->try_offset = mb->pos;
11785 /* load last param to store result if not preserve_sig and not void */
11786 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11787 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11789 /* the CCW -> object conversion */
11790 mono_mb_emit_ldarg (mb, 0);
11791 mono_mb_emit_icon (mb, FALSE);
11792 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11794 for (i = 0; i < sig->param_count; i++)
11795 mono_mb_emit_ldarg (mb, i+1);
11797 mono_mb_emit_managed_call (mb, method, NULL);
11799 if (!preserve_sig) {
11800 /* store result if not preserve_sig and we have one */
11801 if (!MONO_TYPE_IS_VOID (sig->ret))
11802 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11804 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11806 /* Main exception catch */
11807 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11808 main_clause->try_len = mb->pos - main_clause->try_offset;
11809 main_clause->data.catch_class = mono_defaults.object_class;
11812 main_clause->handler_offset = mb->pos;
11813 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11814 mono_mb_emit_stloc (mb, hr);
11815 mono_mb_emit_branch (mb, CEE_LEAVE);
11816 main_clause->handler_len = mb->pos - main_clause->handler_offset;
11819 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
11821 mono_mb_emit_ldloc (mb, hr);
11824 mono_mb_emit_byte (mb, CEE_RET);
11826 mono_loader_lock ();
11827 mono_marshal_lock ();
11828 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
11829 mono_marshal_unlock ();
11830 mono_loader_unlock ();
11834 for (i = sig_native->param_count; i >= 0; i--)
11836 mono_metadata_free_marshal_spec (mspecs [i]);
11839 if (!preserve_sig) {
11840 header = ((MonoMethodNormal *)res)->header;
11841 header->num_clauses = 1;
11842 header->clauses = main_clause;
11849 * cominterop_mono_string_to_guid:
11851 * Converts the standard string representation of a GUID
11852 * to a 16 byte Microsoft GUID.
11855 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
11856 gunichar2 * chars = mono_string_chars (string);
11858 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
11860 for (i = 0; i < sizeof(indexes); i++)
11861 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
11865 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
11867 guint8 klass_guid [16];
11868 if (cominterop_class_guid (klass, klass_guid))
11869 return !memcmp (guid, klass_guid, sizeof (klass_guid));
11874 cominterop_ccw_addref (MonoCCWInterface* ccwe)
11876 gint32 ref_count = 0;
11877 MonoCCW* ccw = ccwe->ccw;
11879 g_assert (ccw->gc_handle);
11880 g_assert (ccw->ref_count >= 0);
11881 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
11882 if (ref_count == 1) {
11883 guint32 oldhandle = ccw->gc_handle;
11884 g_assert (oldhandle);
11885 /* since we now have a ref count, alloc a strong handle*/
11886 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
11887 mono_gchandle_free (oldhandle);
11893 cominterop_ccw_release (MonoCCWInterface* ccwe)
11895 gint32 ref_count = 0;
11896 MonoCCW* ccw = ccwe->ccw;
11898 g_assert (ccw->ref_count > 0);
11899 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
11900 if (ref_count == 0) {
11901 /* allow gc of object */
11902 guint32 oldhandle = ccw->gc_handle;
11903 g_assert (oldhandle);
11904 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
11905 mono_gchandle_free (oldhandle);
11910 #define MONO_S_OK 0x00000000L
11911 #define MONO_E_NOINTERFACE 0x80004002L
11912 #define MONO_E_NOTIMPL 0x80004001L
11915 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
11918 MonoClass *itf = NULL;
11920 MonoCCW* ccw = ccwe->ccw;
11921 MonoClass* klass = NULL;
11922 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
11925 klass = mono_object_class (object);
11930 /* handle IUnknown special */
11931 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
11932 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
11933 /* remember to addref on QI */
11934 cominterop_ccw_addref (*ppv);
11938 /* handle IDispatch special */
11939 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
11940 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
11941 /* remember to addref on QI */
11942 cominterop_ccw_addref (*ppv);
11946 ifaces = mono_class_get_implemented_interfaces (klass);
11948 for (i = 0; i < ifaces->len; ++i) {
11949 MonoClass *ic = NULL;
11950 ic = g_ptr_array_index (ifaces, i);
11951 if (cominterop_class_guid_equal (riid, ic)) {
11956 g_ptr_array_free (ifaces, TRUE);
11959 *ppv = cominterop_get_ccw (object, itf);
11960 /* remember to addref on QI */
11961 cominterop_ccw_addref (*ppv);
11965 return MONO_E_NOINTERFACE;
11969 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
11971 return MONO_E_NOTIMPL;
11975 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
11977 return MONO_E_NOTIMPL;
11981 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
11982 gunichar2** rgszNames, guint32 cNames,
11983 guint32 lcid, gint32 *rgDispId)
11985 return MONO_E_NOTIMPL;
11989 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
11990 gpointer riid, guint32 lcid,
11991 guint16 wFlags, gpointer pDispParams,
11992 gpointer pVarResult, gpointer pExcepInfo,
11995 return MONO_E_NOTIMPL;