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 = {
85 /* This mutex protects the various marshalling related caches in MonoImage */
86 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
87 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
88 static CRITICAL_SECTION marshal_mutex;
90 /* Maps wrapper methods to the methods they wrap */
91 static GHashTable *wrapper_hash;
93 static guint32 last_error_tls_id;
95 static guint32 load_type_info_tls_id;
98 delegate_hash_table_add (MonoDelegate *d);
101 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
104 mono_struct_delete_old (MonoClass *klass, char *ptr);
107 mono_marshal_string_to_utf16 (MonoString *s);
110 mono_string_to_lpstr (MonoString *string_obj);
113 mono_string_from_bstr (gpointer bstr);
116 mono_free_bstr (gpointer bstr);
119 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
122 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
125 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
127 static MonoAsyncResult *
128 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_marshal_xdomain_copy_value (MonoObject *val);
137 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
140 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
143 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
146 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
148 static MonoReflectionType *
149 type_from_handle (MonoType *handle);
152 mono_marshal_set_last_error_windows (int error);
155 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func);
158 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
160 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
162 mono_register_jit_icall (func, name, sig, save);
165 static MonoMethodSignature*
166 signature_dup (MonoImage *image, MonoMethodSignature *sig)
168 MonoMethodSignature *res;
171 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
173 res = mono_mempool_alloc (image->mempool, sigsize);
174 mono_loader_unlock ();
175 memcpy (res, sig, sigsize);
180 static MonoMethodSignature*
181 signature_no_pinvoke (MonoMethod *method)
183 MonoMethodSignature *sig = mono_method_signature (method);
185 sig = signature_dup (method->klass->image, sig);
186 sig->pinvoke = FALSE;
193 * signature_cominterop:
195 * @sig: managed method signature
197 * Returns: the corresponding unmanaged method signature for a managed COM
200 static MonoMethodSignature*
201 signature_cominterop (MonoImage *image, MonoMethodSignature *sig)
203 MonoMethodSignature *res;
206 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
208 if (!MONO_TYPE_IS_VOID (sig->ret))
211 sigsize = sizeof (MonoMethodSignature) + ((param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
213 res = mono_mempool_alloc (image->mempool, sigsize);
214 mono_loader_unlock ();
215 memcpy (res, sig, sigsize);
217 // now move args forward one
218 for (i = sig->param_count-1; i >= 0; i--)
219 res->params[i+1] = sig->params[i];
221 // first arg is interface pointer
222 res->params[0] = &mono_defaults.int_class->byval_arg;
224 // last arg is return type
225 if (!MONO_TYPE_IS_VOID (sig->ret)) {
226 res->params[param_count-1] = mono_metadata_type_dup_mp (image, sig->ret);
227 res->params[param_count-1]->byref = 1;
228 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
232 res->pinvoke = FALSE;
238 res->param_count = param_count;
240 // return type is always int32 (HRESULT)
241 res->ret = &mono_defaults.int32_class->byval_arg;
243 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
244 #ifdef PLATFORM_WIN32
245 res->call_convention = MONO_CALL_STDCALL;
247 res->call_convention = MONO_CALL_C;
254 * cominterop_get_function_pointer:
255 * @itf: a pointer to the COM interface
256 * @slot: the vtable slot of the method pointer to return
258 * Returns: the unmanaged vtable function pointer from the interface
261 cominterop_get_function_pointer (gpointer itf, int slot)
264 func = *((*(gpointer**)itf)+slot);
269 * cominterop_get_com_slot_for_method:
272 * Returns: the method's slot in the COM interface vtable
275 cominterop_get_com_slot_for_method (MonoMethod* method)
277 static MonoClass *interface_type_attribute = NULL;
278 MonoInterfaceTypeAttribute* itf_attr = NULL;
279 MonoCustomAttrInfo *cinfo = NULL;
281 guint32 slot = method->slot;
283 MonoClass *ic = NULL;
286 ifaces = mono_class_get_implemented_interfaces (method->klass);
289 for (i = 0; i < ifaces->len; ++i) {
290 ic = g_ptr_array_index (ifaces, i);
291 offset = method->klass->interface_offsets[ic->interface_id];
292 if (method->slot >= offset && method->slot < offset + ic->method.count) {
297 g_ptr_array_free (ifaces, TRUE);
304 g_assert (MONO_CLASS_IS_INTERFACE (ic));
306 if (!interface_type_attribute)
307 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
308 cinfo = mono_custom_attrs_from_class (ic);
310 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
312 mono_custom_attrs_free (cinfo);
315 if (itf_attr && itf_attr->intType == 1)
316 offset = 3; /* 3 methods in IUnknown*/
318 offset = 7; /* 7 methods in IDispatch*/
320 return slot + offset;
324 * cominterop_get_method_interface:
325 * @method: method being called
327 * Returns: the Type on which the method is defined on
329 static MonoReflectionType*
330 cominterop_get_method_interface (MonoMethod* method)
334 MonoClass *ic = NULL;
336 MonoReflectionType* rt = NULL;
338 ifaces = mono_class_get_implemented_interfaces (method->klass);
341 for (i = 0; i < ifaces->len; ++i) {
342 ic = g_ptr_array_index (ifaces, i);
343 offset = method->klass->interface_offsets[ic->interface_id];
344 if (method->slot >= offset && method->slot < offset + ic->method.count)
348 g_ptr_array_free (ifaces, TRUE);
355 g_assert (MONO_CLASS_IS_INTERFACE (ic));
357 t = mono_class_get_type (ic);
358 rt = mono_type_get_object (mono_domain_get(), t);
364 mono_marshal_init (void)
366 static gboolean module_initialized = FALSE;
368 if (!module_initialized) {
369 module_initialized = TRUE;
370 InitializeCriticalSection (&marshal_mutex);
371 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
372 last_error_tls_id = TlsAlloc ();
373 load_type_info_tls_id = TlsAlloc ();
375 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
376 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
377 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
378 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
379 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
380 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
381 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
382 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
383 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
384 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
385 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
386 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
387 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
388 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
389 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
390 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
391 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
392 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
393 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
394 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
395 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
396 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
397 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
398 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
399 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
400 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
401 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
402 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
403 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
404 register_icall (g_free, "g_free", "void ptr", FALSE);
405 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
406 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
407 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
408 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
409 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
410 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
411 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
412 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
413 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
414 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
415 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
416 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
417 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
418 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
419 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
420 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "object ptr", FALSE);
421 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
426 mono_marshal_cleanup (void)
428 g_hash_table_destroy (wrapper_hash);
429 TlsFree (load_type_info_tls_id);
430 TlsFree (last_error_tls_id);
431 DeleteCriticalSection (&marshal_mutex);
434 MonoClass *byte_array_class;
435 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
436 static MonoMethod *method_set_context, *method_get_context;
437 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
440 mono_remoting_marshal_init (void)
444 static gboolean module_initialized = FALSE;
446 if (!module_initialized) {
447 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
448 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
449 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
450 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
452 klass = mono_defaults.real_proxy_class;
453 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
455 klass = mono_defaults.exception_class;
456 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
458 klass = mono_defaults.thread_class;
459 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
461 klass = mono_defaults.appdomain_class;
462 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
463 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
465 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
466 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
468 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
469 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
471 module_initialized = TRUE;
476 mono_delegate_to_ftnptr (MonoDelegate *delegate)
478 MonoMethod *method, *wrapper;
484 if (delegate->delegate_trampoline)
485 return delegate->delegate_trampoline;
487 klass = ((MonoObject *)delegate)->vtable->klass;
488 g_assert (klass->delegate);
490 method = delegate->method_info->method;
492 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
494 delegate->delegate_trampoline = mono_compile_method (wrapper);
496 // Add the delegate to the delegate hash table
497 delegate_hash_table_add (delegate);
499 /* when the object is collected, collect the dunamic method, too */
500 mono_object_register_finalizer ((MonoObject*)delegate);
502 return delegate->delegate_trampoline;
505 static GHashTable *delegate_hash_table;
508 delegate_hash_table_new (void) {
509 return g_hash_table_new (NULL, NULL);
513 delegate_hash_table_remove (MonoDelegate *d)
515 mono_marshal_lock ();
516 if (delegate_hash_table == NULL)
517 delegate_hash_table = delegate_hash_table_new ();
518 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
519 mono_marshal_unlock ();
523 delegate_hash_table_add (MonoDelegate *d)
525 mono_marshal_lock ();
526 if (delegate_hash_table == NULL)
527 delegate_hash_table = delegate_hash_table_new ();
528 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
529 mono_marshal_unlock ();
533 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
537 mono_marshal_lock ();
538 if (delegate_hash_table == NULL)
539 delegate_hash_table = delegate_hash_table_new ();
541 d = g_hash_table_lookup (delegate_hash_table, ftn);
542 mono_marshal_unlock ();
544 /* This is a native function, so construct a delegate for it */
545 static MonoClass *UnmanagedFunctionPointerAttribute;
546 MonoMethodSignature *sig;
548 MonoMarshalSpec **mspecs;
549 MonoCustomAttrInfo *cinfo;
550 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
551 MonoMethod *invoke = mono_get_delegate_invoke (klass);
552 MonoMethodPInvoke piinfo;
555 memset (&piinfo, 0, sizeof (piinfo));
556 if (!UnmanagedFunctionPointerAttribute)
557 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
559 /* The attribute is only available in Net 2.0 */
560 if (UnmanagedFunctionPointerAttribute) {
562 * The pinvoke attributes are stored in a real custom attribute so we have to
565 cinfo = mono_custom_attrs_from_class (klass);
567 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
569 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
572 mono_custom_attrs_free (cinfo);
576 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
577 mono_method_get_marshal_info (invoke, mspecs);
578 /* Freed below so don't alloc from mempool */
579 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
582 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
584 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
586 mono_metadata_free_marshal_spec (mspecs [i]);
590 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
591 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
594 if (d->object.vtable->domain != mono_domain_get ())
595 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
601 mono_delegate_free_ftnptr (MonoDelegate *delegate)
606 delegate_hash_table_remove (delegate);
608 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
610 if (!delegate->target) {
611 /* The wrapper method is shared between delegates -> no need to free it */
616 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
619 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
624 mono_array_to_savearray (MonoArray *array)
629 g_assert_not_reached ();
634 mono_array_to_lparray (MonoArray *array)
639 /* fixme: maybe we need to make a copy */
640 return array->vector;
644 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
646 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
648 if (elclass == mono_defaults.byte_class) {
649 GError *error = NULL;
653 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
656 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
660 g_error_free (error);
663 g_assert_not_reached ();
667 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
669 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
671 if (elclass == mono_defaults.byte_class) {
673 GError *error = NULL;
675 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
677 MonoException *exc = mono_get_exception_argument ("string", error->message);
678 g_error_free (error);
679 mono_raise_exception (exc);
682 memcpy (native_arr, as, MIN (strlen (as), elnum));
686 g_assert_not_reached ();
690 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
692 GError *error = NULL;
702 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
704 if (items_written > mono_stringbuilder_capacity (sb))
705 items_written = mono_stringbuilder_capacity (sb);
708 if (! sb->str || sb->str == sb->cached_str) {
709 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
710 sb->cached_str = NULL;
713 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
714 sb->length = items_written;
716 g_error_free (error);
722 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
729 g_assert (mono_string_chars (sb->str) == text);
731 for (len = 0; text [len] != 0; ++len)
738 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
740 GError *error = NULL;
747 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
749 * The sb could have been allocated with the default capacity and be empty.
750 * we need to alloc a buffer of the default capacity in this case.
752 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
753 sb->cached_str = NULL;
756 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
758 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
760 g_error_free (error);
761 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
764 memcpy (res, tmp, sb->length + 1);
772 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
780 * The stringbuilder might not have ownership of this string. If this is
781 * the case, we must duplicate the string, so that we don't munge immutable
784 if (sb->str == sb->cached_str) {
786 * The sb could have been allocated with the default capacity and be empty.
787 * we need to alloc a buffer of the default capacity in this case.
789 if (sb->str->length == 0)
790 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
792 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
793 sb->cached_str = NULL;
796 return mono_string_chars (sb->str);
800 mono_string_to_lpstr (MonoString *s)
802 #ifdef PLATFORM_WIN32
805 GError *error = NULL;
811 as = CoTaskMemAlloc (1);
816 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
818 MonoException *exc = mono_get_exception_argument ("string", error->message);
819 g_error_free (error);
820 mono_raise_exception(exc);
824 as = CoTaskMemAlloc (len + 1);
825 memcpy (as, tmp, len + 1);
829 return mono_string_to_utf8 (s);
834 mono_string_to_ansibstr (MonoString *string_obj)
836 g_error ("UnmanagedMarshal.BStr is not implemented.");
841 mono_string_to_bstr (MonoString *string_obj)
843 #ifdef PLATFORM_WIN32
846 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
848 g_error ("UnmanagedMarshal.BStr is not implemented.");
854 mono_string_from_bstr (gpointer bstr)
856 #ifdef PLATFORM_WIN32
859 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
861 g_error ("UnmanagedMarshal.BStr is not implemented.");
867 mono_free_bstr (gpointer bstr)
869 #ifdef PLATFORM_WIN32
870 SysFreeString ((BSTR)bstr);
872 g_error ("Free BSTR is not implemented.");
877 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
882 g_assert (dst != NULL);
885 memset (dst, 0, size);
890 s = mono_string_to_utf8 (src);
891 len = MIN (size, strlen (s));
892 memcpy (dst, s, len);
895 *((char *)dst + size - 1) = 0;
899 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
903 g_assert (dst != NULL);
907 memset (dst, 0, size * 2);
911 len = MIN (size, (mono_string_length (src)));
912 memcpy (dst, mono_string_chars (src), len * 2);
914 *((gunichar2 *)dst + len - 1) = 0;
918 mono_mb_free (MonoMethodBuilder *mb)
920 g_list_free (mb->locals_list);
930 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
932 MonoMethodBuilder *mb;
935 g_assert (klass != NULL);
936 g_assert (name != NULL);
938 mb = g_new0 (MonoMethodBuilder, 1);
940 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
944 m->wrapper_type = type;
946 mb->name = g_strdup (name);
948 mb->code = g_malloc (mb->code_size);
954 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
958 g_assert (mb != NULL);
959 g_assert (type != NULL);
962 mb->locals_list = g_list_append (mb->locals_list, type);
969 * mono_mb_create_method:
971 * Create a MonoMethod from this method builder.
972 * Returns: the newly created method.
974 * LOCKING: Assumes the loader lock is held.
977 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
979 MonoMethodHeader *header;
980 MonoMethodWrapper *mw;
986 g_assert (mb != NULL);
988 mp = mb->method->klass->image->mempool;
993 method->name = mb->name;
994 method->dynamic = TRUE;
996 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
997 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
999 header->code = mb->code;
1001 /* Realloc the method info into a mempool */
1003 method = mono_mempool_alloc (mp, sizeof (MonoMethodWrapper));
1004 memcpy (method, mb->method, sizeof (MonoMethodWrapper));
1006 method->name = mono_mempool_strdup (mp, mb->name);
1008 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
1009 mono_mempool_alloc0 (mp, sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
1011 header->code = mono_mempool_alloc (mp, mb->pos);
1012 memcpy ((char*)header->code, mb->code, mb->pos);
1018 header->max_stack = max_stack;
1020 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
1021 header->locals [i] = (MonoType *)l->data;
1024 method->signature = signature;
1026 header->code_size = mb->pos;
1027 header->num_locals = mb->locals;
1029 mw = (MonoMethodWrapper*) mb->method;
1030 i = g_list_length (mw->method_data);
1034 l = g_list_reverse (mw->method_data);
1035 if (method->dynamic)
1036 data = g_malloc (sizeof (gpointer) * (i + 1));
1038 data = mono_mempool_alloc (mp, sizeof (gpointer) * (i + 1));
1039 /* store the size in the first element */
1040 data [0] = GUINT_TO_POINTER (i);
1042 for (tmp = l; tmp; tmp = tmp->next) {
1043 data [i++] = tmp->data;
1047 ((MonoMethodWrapper*)method)->method_data = data;
1050 static int total_code = 0;
1051 static int total_alloc = 0;
1052 total_code += mb->pos;
1053 total_alloc += mb->code_size;
1054 g_print ("code size: %d of %d (allocated: %d)\n", mb->pos, total_code, total_alloc);
1057 #ifdef DEBUG_RUNTIME_CODE
1058 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (method, TRUE));
1059 printf ("%s\n", mono_disasm_code (&marshal_dh, method, mb->code, mb->code + mb->pos));
1066 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
1068 MonoMethodWrapper *mw;
1070 g_assert (mb != NULL);
1072 mw = (MonoMethodWrapper *)mb->method;
1074 /* one O(n) is enough */
1075 mw->method_data = g_list_prepend (mw->method_data, data);
1077 return g_list_length (mw->method_data);
1081 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
1083 mb->code [pos] = value & 0xff;
1084 mb->code [pos + 1] = (value >> 8) & 0xff;
1085 mb->code [pos + 2] = (value >> 16) & 0xff;
1086 mb->code [pos + 3] = (value >> 24) & 0xff;
1090 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
1092 *((gint8 *)(&mb->code [pos])) = value;
1096 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
1098 if (mb->pos >= mb->code_size) {
1099 mb->code_size += mb->code_size >> 1;
1100 mb->code = g_realloc (mb->code, mb->code_size);
1103 mb->code [mb->pos++] = op;
1107 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
1109 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1110 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1113 mono_mb_emit_icon (mb, offset);
1114 mono_mb_emit_byte (mb, CEE_ADD);
1119 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1122 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1123 mono_mb_emit_byte (mb, CEE_LDIND_I);
1124 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1125 mono_mb_emit_byte (mb, CEE_ADD);
1126 mono_mb_emit_byte (mb, CEE_LDIND_I);
1127 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1128 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1129 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1130 mono_mb_emit_byte (mb, branch_code);
1132 mono_mb_emit_i4 (mb, 0);
1137 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1140 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1141 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1142 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1143 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1144 mono_mb_emit_icon (mb, -1);
1145 mono_mb_emit_byte (mb, branch_code);
1147 mono_mb_emit_i4 (mb, 0);
1152 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
1154 if ((mb->pos + 4) >= mb->code_size) {
1155 mb->code_size += mb->code_size >> 1;
1156 mb->code = g_realloc (mb->code, mb->code_size);
1159 mono_mb_patch_addr (mb, mb->pos, data);
1164 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
1166 if ((mb->pos + 2) >= mb->code_size) {
1167 mb->code_size += mb->code_size >> 1;
1168 mb->code = g_realloc (mb->code, mb->code_size);
1171 mb->code [mb->pos] = data & 0xff;
1172 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
1177 mono_mb_emit_op (MonoMethodBuilder *mb, guint8 op, gpointer data)
1179 mono_mb_emit_byte (mb, op);
1180 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, data));
1184 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
1186 mono_mb_emit_op (mb, CEE_LDSTR, str);
1190 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
1193 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
1194 } else if (argnum < 256) {
1195 mono_mb_emit_byte (mb, CEE_LDARG_S);
1196 mono_mb_emit_byte (mb, argnum);
1198 mono_mb_emit_byte (mb, CEE_PREFIX1);
1199 mono_mb_emit_byte (mb, CEE_LDARG);
1200 mono_mb_emit_i2 (mb, argnum);
1205 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
1208 mono_mb_emit_byte (mb, CEE_LDARGA_S);
1209 mono_mb_emit_byte (mb, argnum);
1211 mono_mb_emit_byte (mb, CEE_PREFIX1);
1212 mono_mb_emit_byte (mb, CEE_LDARGA);
1213 mono_mb_emit_i2 (mb, argnum);
1218 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
1221 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
1222 mono_mb_emit_byte (mb, locnum);
1224 mono_mb_emit_byte (mb, CEE_PREFIX1);
1225 mono_mb_emit_byte (mb, CEE_LDLOCA);
1226 mono_mb_emit_i2 (mb, locnum);
1231 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
1234 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
1235 } else if (num < 256) {
1236 mono_mb_emit_byte (mb, CEE_LDLOC_S);
1237 mono_mb_emit_byte (mb, num);
1239 mono_mb_emit_byte (mb, CEE_PREFIX1);
1240 mono_mb_emit_byte (mb, CEE_LDLOC);
1241 mono_mb_emit_i2 (mb, num);
1246 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
1249 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
1250 } else if (num < 256) {
1251 mono_mb_emit_byte (mb, CEE_STLOC_S);
1252 mono_mb_emit_byte (mb, num);
1254 mono_mb_emit_byte (mb, CEE_PREFIX1);
1255 mono_mb_emit_byte (mb, CEE_STLOC);
1256 mono_mb_emit_i2 (mb, num);
1261 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
1263 if (value >= -1 && value < 8) {
1264 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
1265 } else if (value >= -128 && value <= 127) {
1266 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
1267 mono_mb_emit_byte (mb, value);
1269 mono_mb_emit_byte (mb, CEE_LDC_I4);
1270 mono_mb_emit_i4 (mb, value);
1275 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
1278 mono_mb_emit_byte (mb, op);
1280 mono_mb_emit_i4 (mb, 0);
1285 mono_mb_emit_short_branch (MonoMethodBuilder *mb, guint8 op)
1288 mono_mb_emit_byte (mb, op);
1290 mono_mb_emit_byte (mb, 0);
1296 mono_mb_patch_branch (MonoMethodBuilder *mb, guint32 pos)
1298 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1302 mono_mb_patch_short_branch (MonoMethodBuilder *mb, guint32 pos)
1304 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
1308 mono_mb_emit_ptr (MonoMethodBuilder *mb, gpointer ptr)
1310 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1311 mono_mb_emit_op (mb, CEE_MONO_LDPTR, ptr);
1315 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
1317 mono_mb_emit_op (mb, CEE_CALLI, sig);
1321 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
1323 mono_mb_emit_op (mb, CEE_CALL, method);
1327 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
1329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1330 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1331 mono_mb_emit_ptr (mb, func);
1332 mono_mb_emit_calli (mb, sig);
1333 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1334 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1338 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
1340 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1341 mono_mb_emit_op (mb, CEE_MONO_ICALL, func);
1345 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1347 // get function pointer from 1st arg, the COM interface pointer
1348 mono_mb_emit_ldarg (mb, 0);
1349 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1350 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1352 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1353 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1354 mono_mb_emit_calli (mb, sig);
1355 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1356 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1360 mono_mb_emit_exception_full (MonoMethodBuilder *mb, const char *exc_nspace, const char *exc_name, const char *msg)
1362 MonoMethod *ctor = NULL;
1364 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, exc_nspace, exc_name);
1365 mono_class_init (mme);
1366 ctor = mono_class_get_method_from_name (mme, ".ctor", 0);
1368 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
1370 mono_mb_emit_byte (mb, CEE_DUP);
1371 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
1372 mono_mb_emit_ldstr (mb, (char*)msg);
1373 mono_mb_emit_byte (mb, CEE_STIND_REF);
1375 mono_mb_emit_byte (mb, CEE_THROW);
1379 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
1381 mono_mb_emit_exception_full (mb, "System", exc_name, msg);
1385 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1387 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1391 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
1393 mono_mb_emit_ldloc (mb, local);
1394 mono_mb_emit_icon (mb, incr);
1395 mono_mb_emit_byte (mb, CEE_ADD);
1396 mono_mb_emit_stloc (mb, local);
1400 mono_type_to_ldind (MonoType *type)
1406 switch (type->type) {
1408 return CEE_LDIND_I1;
1410 case MONO_TYPE_BOOLEAN:
1411 return CEE_LDIND_U1;
1413 return CEE_LDIND_I2;
1415 case MONO_TYPE_CHAR:
1416 return CEE_LDIND_U2;
1418 return CEE_LDIND_I4;
1420 return CEE_LDIND_U4;
1424 case MONO_TYPE_FNPTR:
1426 case MONO_TYPE_CLASS:
1427 case MONO_TYPE_STRING:
1428 case MONO_TYPE_OBJECT:
1429 case MONO_TYPE_SZARRAY:
1430 case MONO_TYPE_ARRAY:
1431 return CEE_LDIND_REF;
1434 return CEE_LDIND_I8;
1436 return CEE_LDIND_R4;
1438 return CEE_LDIND_R8;
1439 case MONO_TYPE_VALUETYPE:
1440 if (type->data.klass->enumtype) {
1441 type = type->data.klass->enum_basetype;
1445 case MONO_TYPE_TYPEDBYREF:
1447 case MONO_TYPE_GENERICINST:
1448 type = &type->data.generic_class->container_class->byval_arg;
1451 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1457 mono_type_to_stind (MonoType *type)
1463 switch (type->type) {
1466 case MONO_TYPE_BOOLEAN:
1467 return CEE_STIND_I1;
1470 case MONO_TYPE_CHAR:
1471 return CEE_STIND_I2;
1474 return CEE_STIND_I4;
1478 case MONO_TYPE_FNPTR:
1480 case MONO_TYPE_CLASS:
1481 case MONO_TYPE_STRING:
1482 case MONO_TYPE_OBJECT:
1483 case MONO_TYPE_SZARRAY:
1484 case MONO_TYPE_ARRAY:
1485 return CEE_STIND_REF;
1488 return CEE_STIND_I8;
1490 return CEE_STIND_R4;
1492 return CEE_STIND_R8;
1493 case MONO_TYPE_VALUETYPE:
1494 if (type->data.klass->enumtype) {
1495 type = type->data.klass->enum_basetype;
1499 case MONO_TYPE_TYPEDBYREF:
1501 case MONO_TYPE_GENERICINST:
1502 type = &type->data.generic_class->container_class->byval_arg;
1505 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1511 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1514 case MONO_MARSHAL_CONV_BOOL_I4:
1515 mono_mb_emit_ldloc (mb, 1);
1516 mono_mb_emit_ldloc (mb, 0);
1517 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1518 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1519 mono_mb_emit_byte (mb, 3);
1520 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1521 mono_mb_emit_byte (mb, CEE_BR_S);
1522 mono_mb_emit_byte (mb, 1);
1523 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1524 mono_mb_emit_byte (mb, CEE_STIND_I1);
1526 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1527 mono_mb_emit_ldloc (mb, 1);
1528 mono_mb_emit_ldloc (mb, 0);
1529 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1530 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1531 mono_mb_emit_byte (mb, 3);
1532 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1533 mono_mb_emit_byte (mb, CEE_BR_S);
1534 mono_mb_emit_byte (mb, 1);
1535 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1536 mono_mb_emit_byte (mb, CEE_STIND_I1);
1538 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1539 MonoClass *eklass = NULL;
1542 if (type->type == MONO_TYPE_SZARRAY) {
1543 eklass = type->data.klass;
1545 g_assert_not_reached ();
1548 esize = mono_class_native_size (eklass, NULL);
1550 /* create a new array */
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1553 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1554 mono_mb_emit_byte (mb, CEE_STIND_I);
1556 if (eklass->blittable) {
1557 /* copy the elements */
1558 mono_mb_emit_ldloc (mb, 1);
1559 mono_mb_emit_byte (mb, CEE_LDIND_I);
1560 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1561 mono_mb_emit_byte (mb, CEE_ADD);
1562 mono_mb_emit_ldloc (mb, 0);
1563 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1564 mono_mb_emit_byte (mb, CEE_PREFIX1);
1565 mono_mb_emit_byte (mb, CEE_CPBLK);
1568 int array_var, src_var, dst_var, index_var;
1569 guint32 label2, label3;
1571 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1572 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1573 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1576 mono_mb_emit_ldloc (mb, 1);
1577 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1578 mono_mb_emit_stloc (mb, array_var);
1580 /* save the old src pointer */
1581 mono_mb_emit_ldloc (mb, 0);
1582 mono_mb_emit_stloc (mb, src_var);
1583 /* save the old dst pointer */
1584 mono_mb_emit_ldloc (mb, 1);
1585 mono_mb_emit_stloc (mb, dst_var);
1587 /* Emit marshalling loop */
1588 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1589 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1590 mono_mb_emit_stloc (mb, index_var);
1594 mono_mb_emit_ldloc (mb, index_var);
1595 mono_mb_emit_ldloc (mb, array_var);
1596 mono_mb_emit_byte (mb, CEE_LDLEN);
1597 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1599 /* src is already set */
1602 mono_mb_emit_ldloc (mb, array_var);
1603 mono_mb_emit_ldloc (mb, index_var);
1604 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1605 mono_mb_emit_stloc (mb, 1);
1607 /* Do the conversion */
1608 emit_struct_conv (mb, eklass, TRUE);
1611 mono_mb_emit_add_to_local (mb, index_var, 1);
1613 mono_mb_emit_byte (mb, CEE_BR);
1614 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
1616 mono_mb_patch_branch (mb, label3);
1618 /* restore the old src pointer */
1619 mono_mb_emit_ldloc (mb, src_var);
1620 mono_mb_emit_stloc (mb, 0);
1621 /* restore the old dst pointer */
1622 mono_mb_emit_ldloc (mb, dst_var);
1623 mono_mb_emit_stloc (mb, 1);
1627 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1628 MonoClass *eclass = mono_defaults.char_class;
1630 /* create a new array */
1631 mono_mb_emit_ldloc (mb, 1);
1632 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1633 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1634 mono_mb_emit_byte (mb, CEE_STIND_REF);
1636 mono_mb_emit_ldloc (mb, 1);
1637 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1638 mono_mb_emit_ldloc (mb, 0);
1639 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1640 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1641 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1644 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1645 mono_mb_emit_ldloc (mb, 1);
1646 mono_mb_emit_ldloc (mb, 0);
1647 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1648 mono_mb_emit_byte (mb, CEE_STIND_REF);
1650 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1651 mono_mb_emit_ldloc (mb, 1);
1652 mono_mb_emit_ldloc (mb, 0);
1653 mono_mb_emit_icall (mb, mono_string_from_utf16);
1654 mono_mb_emit_byte (mb, CEE_STIND_REF);
1656 case MONO_MARSHAL_CONV_STR_LPTSTR:
1657 case MONO_MARSHAL_CONV_STR_LPSTR:
1658 mono_mb_emit_ldloc (mb, 1);
1659 mono_mb_emit_ldloc (mb, 0);
1660 mono_mb_emit_byte (mb, CEE_LDIND_I);
1661 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1662 mono_mb_emit_byte (mb, CEE_STIND_REF);
1664 case MONO_MARSHAL_CONV_STR_LPWSTR:
1665 mono_mb_emit_ldloc (mb, 1);
1666 mono_mb_emit_ldloc (mb, 0);
1667 mono_mb_emit_byte (mb, CEE_LDIND_I);
1668 mono_mb_emit_icall (mb, mono_string_from_utf16);
1669 mono_mb_emit_byte (mb, CEE_STIND_REF);
1671 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1672 MonoClass *klass = mono_class_from_mono_type (type);
1673 int src_var, dst_var;
1675 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1676 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1678 /* *dst = new object */
1679 mono_mb_emit_ldloc (mb, 1);
1680 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1681 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1682 mono_mb_emit_byte (mb, CEE_STIND_REF);
1684 /* save the old src pointer */
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_stloc (mb, src_var);
1687 /* save the old dst pointer */
1688 mono_mb_emit_ldloc (mb, 1);
1689 mono_mb_emit_stloc (mb, dst_var);
1691 /* dst = pointer to newly created object data */
1692 mono_mb_emit_ldloc (mb, 1);
1693 mono_mb_emit_byte (mb, CEE_LDIND_I);
1694 mono_mb_emit_icon (mb, sizeof (MonoObject));
1695 mono_mb_emit_byte (mb, CEE_ADD);
1696 mono_mb_emit_stloc (mb, 1);
1698 emit_struct_conv (mb, klass, TRUE);
1700 /* restore the old src pointer */
1701 mono_mb_emit_ldloc (mb, src_var);
1702 mono_mb_emit_stloc (mb, 0);
1703 /* restore the old dst pointer */
1704 mono_mb_emit_ldloc (mb, dst_var);
1705 mono_mb_emit_stloc (mb, 1);
1708 case MONO_MARSHAL_CONV_DEL_FTN: {
1709 MonoClass *klass = mono_class_from_mono_type (type);
1711 mono_mb_emit_ldloc (mb, 1);
1712 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1713 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1714 mono_mb_emit_ldloc (mb, 0);
1715 mono_mb_emit_byte (mb, CEE_LDIND_I);
1716 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1717 mono_mb_emit_byte (mb, CEE_STIND_REF);
1720 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1721 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1723 case MONO_MARSHAL_CONV_STR_BSTR:
1724 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1725 case MONO_MARSHAL_CONV_STR_TBSTR:
1726 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1728 g_warning ("marshaling conversion %d not implemented", conv);
1729 g_assert_not_reached ();
1734 conv_to_icall (MonoMarshalConv conv)
1737 case MONO_MARSHAL_CONV_STR_LPWSTR:
1738 return mono_marshal_string_to_utf16;
1739 case MONO_MARSHAL_CONV_LPWSTR_STR:
1740 return mono_string_from_utf16;
1741 case MONO_MARSHAL_CONV_LPSTR_STR:
1742 return mono_string_new_wrapper;
1743 case MONO_MARSHAL_CONV_STR_LPTSTR:
1744 case MONO_MARSHAL_CONV_STR_LPSTR:
1745 return mono_string_to_lpstr;
1746 case MONO_MARSHAL_CONV_STR_BSTR:
1747 return mono_string_to_bstr;
1748 case MONO_MARSHAL_CONV_BSTR_STR:
1749 return mono_string_from_bstr;
1750 case MONO_MARSHAL_CONV_STR_TBSTR:
1751 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1752 return mono_string_to_ansibstr;
1753 case MONO_MARSHAL_CONV_SB_LPSTR:
1754 case MONO_MARSHAL_CONV_SB_LPTSTR:
1755 return mono_string_builder_to_utf8;
1756 case MONO_MARSHAL_CONV_SB_LPWSTR:
1757 return mono_string_builder_to_utf16;
1758 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1759 return mono_array_to_savearray;
1760 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1761 return mono_array_to_lparray;
1762 case MONO_MARSHAL_CONV_DEL_FTN:
1763 return mono_delegate_to_ftnptr;
1764 case MONO_MARSHAL_CONV_FTN_DEL:
1765 return mono_ftnptr_to_delegate;
1766 case MONO_MARSHAL_CONV_LPSTR_SB:
1767 case MONO_MARSHAL_CONV_LPTSTR_SB:
1768 return mono_string_utf8_to_builder;
1769 case MONO_MARSHAL_CONV_LPWSTR_SB:
1770 return mono_string_utf16_to_builder;
1771 case MONO_MARSHAL_FREE_ARRAY:
1772 return mono_marshal_free_array;
1773 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1774 return mono_string_to_byvalstr;
1775 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1776 return mono_string_to_byvalwstr;
1778 g_assert_not_reached ();
1785 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1790 case MONO_MARSHAL_CONV_BOOL_I4:
1791 mono_mb_emit_ldloc (mb, 1);
1792 mono_mb_emit_ldloc (mb, 0);
1793 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1794 mono_mb_emit_byte (mb, CEE_STIND_I4);
1796 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1797 mono_mb_emit_ldloc (mb, 1);
1798 mono_mb_emit_ldloc (mb, 0);
1799 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1800 mono_mb_emit_byte (mb, CEE_NEG);
1801 mono_mb_emit_byte (mb, CEE_STIND_I2);
1803 case MONO_MARSHAL_CONV_STR_LPWSTR:
1804 case MONO_MARSHAL_CONV_STR_LPSTR:
1805 case MONO_MARSHAL_CONV_STR_LPTSTR:
1806 case MONO_MARSHAL_CONV_STR_BSTR:
1807 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1808 case MONO_MARSHAL_CONV_STR_TBSTR: {
1811 /* free space if free == true */
1812 mono_mb_emit_ldloc (mb, 2);
1813 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1814 mono_mb_emit_ldloc (mb, 1);
1815 mono_mb_emit_byte (mb, CEE_LDIND_I);
1816 mono_mb_emit_icall (mb, g_free);
1817 mono_mb_patch_short_branch (mb, pos);
1819 mono_mb_emit_ldloc (mb, 1);
1820 mono_mb_emit_ldloc (mb, 0);
1821 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1822 mono_mb_emit_icall (mb, conv_to_icall (conv));
1823 mono_mb_emit_byte (mb, CEE_STIND_I);
1826 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1827 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1828 case MONO_MARSHAL_CONV_DEL_FTN:
1829 mono_mb_emit_ldloc (mb, 1);
1830 mono_mb_emit_ldloc (mb, 0);
1831 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1832 mono_mb_emit_icall (mb, conv_to_icall (conv));
1833 mono_mb_emit_byte (mb, CEE_STIND_I);
1835 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1836 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1839 mono_mb_emit_ldloc (mb, 1); /* dst */
1840 mono_mb_emit_ldloc (mb, 0);
1841 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1842 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1843 mono_mb_emit_icall (mb, conv_to_icall (conv));
1846 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1847 MonoClass *eklass = NULL;
1850 if (type->type == MONO_TYPE_SZARRAY) {
1851 eklass = type->data.klass;
1853 g_assert_not_reached ();
1856 if (eklass->valuetype)
1857 esize = mono_class_native_size (eklass, NULL);
1859 esize = sizeof (gpointer);
1861 mono_mb_emit_ldloc (mb, 0);
1862 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1863 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1865 if (eklass->blittable) {
1866 mono_mb_emit_ldloc (mb, 1);
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1869 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1870 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1871 mono_mb_emit_byte (mb, CEE_PREFIX1);
1872 mono_mb_emit_byte (mb, CEE_CPBLK);
1874 int array_var, src_var, dst_var, index_var;
1875 guint32 label2, label3;
1877 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1878 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1879 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1882 mono_mb_emit_ldloc (mb, 0);
1883 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1884 mono_mb_emit_stloc (mb, array_var);
1886 /* save the old src pointer */
1887 mono_mb_emit_ldloc (mb, 0);
1888 mono_mb_emit_stloc (mb, src_var);
1889 /* save the old dst pointer */
1890 mono_mb_emit_ldloc (mb, 1);
1891 mono_mb_emit_stloc (mb, dst_var);
1893 /* Emit marshalling loop */
1894 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1895 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1896 mono_mb_emit_stloc (mb, index_var);
1900 mono_mb_emit_ldloc (mb, index_var);
1901 mono_mb_emit_ldloc (mb, array_var);
1902 mono_mb_emit_byte (mb, CEE_LDLEN);
1903 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1906 mono_mb_emit_ldloc (mb, array_var);
1907 mono_mb_emit_ldloc (mb, index_var);
1908 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1909 mono_mb_emit_stloc (mb, 0);
1911 /* dst is already set */
1913 /* Do the conversion */
1914 emit_struct_conv (mb, eklass, FALSE);
1917 mono_mb_emit_add_to_local (mb, index_var, 1);
1919 mono_mb_emit_byte (mb, CEE_BR);
1920 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
1922 mono_mb_patch_branch (mb, label3);
1924 /* restore the old src pointer */
1925 mono_mb_emit_ldloc (mb, src_var);
1926 mono_mb_emit_stloc (mb, 0);
1927 /* restore the old dst pointer */
1928 mono_mb_emit_ldloc (mb, dst_var);
1929 mono_mb_emit_stloc (mb, 1);
1932 mono_mb_patch_short_branch (mb, pos);
1935 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1936 mono_mb_emit_ldloc (mb, 0);
1937 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1938 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1940 mono_mb_emit_ldloc (mb, 1);
1941 mono_mb_emit_ldloc (mb, 0);
1942 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1943 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1944 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1945 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1946 mono_mb_patch_short_branch (mb, pos);
1949 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1950 int src_var, dst_var;
1952 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1953 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1955 mono_mb_emit_ldloc (mb, 0);
1956 mono_mb_emit_byte (mb, CEE_LDIND_I);
1957 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1959 /* save the old src pointer */
1960 mono_mb_emit_ldloc (mb, 0);
1961 mono_mb_emit_stloc (mb, src_var);
1962 /* save the old dst pointer */
1963 mono_mb_emit_ldloc (mb, 1);
1964 mono_mb_emit_stloc (mb, dst_var);
1966 /* src = pointer to object data */
1967 mono_mb_emit_ldloc (mb, 0);
1968 mono_mb_emit_byte (mb, CEE_LDIND_I);
1969 mono_mb_emit_icon (mb, sizeof (MonoObject));
1970 mono_mb_emit_byte (mb, CEE_ADD);
1971 mono_mb_emit_stloc (mb, 0);
1973 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1975 /* restore the old src pointer */
1976 mono_mb_emit_ldloc (mb, src_var);
1977 mono_mb_emit_stloc (mb, 0);
1978 /* restore the old dst pointer */
1979 mono_mb_emit_ldloc (mb, dst_var);
1980 mono_mb_emit_stloc (mb, 1);
1982 mono_mb_patch_short_branch (mb, pos);
1986 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1987 MonoException *exc = mono_get_exception_not_implemented (msg);
1990 mono_raise_exception (exc);
1996 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1998 MonoMarshalType *info;
2002 emit_struct_conv(mb, klass->parent, to_object);
2004 info = mono_marshal_load_type_info (klass);
2006 if (info->native_size == 0)
2009 if (klass->blittable) {
2010 int msize = mono_class_value_size (klass, NULL);
2011 g_assert (msize == info->native_size);
2012 mono_mb_emit_ldloc (mb, 1);
2013 mono_mb_emit_ldloc (mb, 0);
2014 mono_mb_emit_icon (mb, msize);
2015 mono_mb_emit_byte (mb, CEE_PREFIX1);
2016 mono_mb_emit_byte (mb, CEE_CPBLK);
2018 mono_mb_emit_add_to_local (mb, 0, msize);
2019 mono_mb_emit_add_to_local (mb, 1, msize);
2023 for (i = 0; i < info->num_fields; i++) {
2024 MonoMarshalNative ntype;
2025 MonoMarshalConv conv;
2026 MonoType *ftype = info->fields [i].field->type;
2029 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2031 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2034 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2037 msize = klass->instance_size - info->fields [i].field->offset;
2038 usize = info->native_size - info->fields [i].offset;
2040 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2041 usize = info->fields [i + 1].offset - info->fields [i].offset;
2045 * FIXME: Should really check for usize==0 and msize>0, but we apply
2046 * the layout to the managed structure as well.
2048 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2049 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) || ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2050 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a reference field at the same offset as another field.", mono_type_full_name (&klass->byval_arg));
2053 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2054 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
2057 case MONO_MARSHAL_CONV_NONE: {
2060 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2061 ftype->type == MONO_TYPE_U) {
2062 mono_mb_emit_ldloc (mb, 1);
2063 mono_mb_emit_ldloc (mb, 0);
2064 mono_mb_emit_byte (mb, CEE_LDIND_I);
2065 mono_mb_emit_byte (mb, CEE_STIND_I);
2076 case MONO_TYPE_BOOLEAN:
2079 case MONO_TYPE_CHAR:
2085 mono_mb_emit_ldloc (mb, 1);
2086 mono_mb_emit_ldloc (mb, 0);
2087 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2088 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2090 case MONO_TYPE_VALUETYPE: {
2091 int src_var, dst_var;
2093 if (ftype->data.klass->enumtype) {
2094 ftype = ftype->data.klass->enum_basetype;
2098 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2099 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2101 /* save the old src pointer */
2102 mono_mb_emit_ldloc (mb, 0);
2103 mono_mb_emit_stloc (mb, src_var);
2104 /* save the old dst pointer */
2105 mono_mb_emit_ldloc (mb, 1);
2106 mono_mb_emit_stloc (mb, dst_var);
2108 emit_struct_conv (mb, ftype->data.klass, to_object);
2110 /* restore the old src pointer */
2111 mono_mb_emit_ldloc (mb, src_var);
2112 mono_mb_emit_stloc (mb, 0);
2113 /* restore the old dst pointer */
2114 mono_mb_emit_ldloc (mb, dst_var);
2115 mono_mb_emit_stloc (mb, 1);
2120 g_warning ("marshaling type %02x not implemented", ftype->type);
2121 g_assert_not_reached ();
2126 int src_var, dst_var;
2128 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2129 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2131 /* save the old src pointer */
2132 mono_mb_emit_ldloc (mb, 0);
2133 mono_mb_emit_stloc (mb, src_var);
2134 /* save the old dst pointer */
2135 mono_mb_emit_ldloc (mb, 1);
2136 mono_mb_emit_stloc (mb, dst_var);
2139 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2141 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2143 /* restore the old src pointer */
2144 mono_mb_emit_ldloc (mb, src_var);
2145 mono_mb_emit_stloc (mb, 0);
2146 /* restore the old dst pointer */
2147 mono_mb_emit_ldloc (mb, dst_var);
2148 mono_mb_emit_stloc (mb, 1);
2153 mono_mb_emit_add_to_local (mb, 0, usize);
2154 mono_mb_emit_add_to_local (mb, 1, msize);
2156 mono_mb_emit_add_to_local (mb, 0, msize);
2157 mono_mb_emit_add_to_local (mb, 1, usize);
2163 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2165 /* Call DestroyStructure */
2166 /* FIXME: Only do this if needed */
2167 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2168 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2169 mono_mb_emit_ldloc (mb, struct_var);
2170 mono_mb_emit_icall (mb, mono_struct_delete_old);
2174 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2178 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2179 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2180 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2182 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2183 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2185 mono_mb_emit_icall (mb, checkpoint_func);
2187 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
2191 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2193 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2196 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2200 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2202 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2205 static MonoAsyncResult *
2206 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2208 MonoMethodMessage *msg;
2209 MonoDelegate *async_callback;
2213 MonoMethod *method = NULL, *method2 = NULL;
2215 g_assert (delegate);
2217 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2219 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2220 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2222 /* If the target is a proxy, make a direct call. Is proxy's work
2223 // to make the call asynchronous.
2225 MonoAsyncResult *ares;
2227 MonoArray *out_args;
2229 method = delegate->method_info->method;
2231 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2232 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2233 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2234 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2235 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2236 MONO_OBJECT_SETREF (msg, async_result, ares);
2237 msg->call_type = CallType_BeginInvoke;
2239 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2244 klass = delegate->object.vtable->klass;
2246 method = mono_get_delegate_invoke (klass);
2247 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2250 g_assert (method != NULL);
2252 im = mono_get_delegate_invoke (method->klass);
2253 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2255 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2259 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2261 int i, params_var, tmp_var;
2263 /* allocate local (pointer) *params[] */
2264 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2265 /* allocate local (pointer) tmp */
2266 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2268 /* alloate space on stack to store an array of pointers to the arguments */
2269 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2270 mono_mb_emit_byte (mb, CEE_PREFIX1);
2271 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2272 mono_mb_emit_stloc (mb, params_var);
2275 mono_mb_emit_ldloc (mb, params_var);
2276 mono_mb_emit_stloc (mb, tmp_var);
2278 if (save_this && sig->hasthis) {
2279 mono_mb_emit_ldloc (mb, tmp_var);
2280 mono_mb_emit_ldarg_addr (mb, 0);
2281 mono_mb_emit_byte (mb, CEE_STIND_I);
2282 /* tmp = tmp + sizeof (gpointer) */
2283 if (sig->param_count)
2284 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2288 for (i = 0; i < sig->param_count; i++) {
2289 mono_mb_emit_ldloc (mb, tmp_var);
2290 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2291 mono_mb_emit_byte (mb, CEE_STIND_I);
2292 /* tmp = tmp + sizeof (gpointer) */
2293 if (i < (sig->param_count - 1))
2294 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2301 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2305 GString *res = g_string_new ("");
2308 g_string_append (res, prefix);
2309 g_string_append_c (res, '_');
2312 mono_type_get_desc (res, sig->ret, FALSE);
2314 for (i = 0; i < sig->param_count; ++i) {
2315 g_string_append_c (res, '_');
2316 mono_type_get_desc (res, sig->params [i], FALSE);
2319 g_string_free (res, FALSE);
2324 * mono_marshal_get_string_encoding:
2326 * Return the string encoding which should be used for a given parameter.
2328 static MonoMarshalNative
2329 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2331 /* First try the parameter marshal info */
2333 if (spec->native == MONO_NATIVE_LPARRAY) {
2334 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2335 return spec->data.array_data.elem_type;
2338 return spec->native;
2342 return MONO_NATIVE_LPSTR;
2344 /* Then try the method level marshal info */
2345 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2346 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2347 return MONO_NATIVE_LPSTR;
2348 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2349 return MONO_NATIVE_LPWSTR;
2350 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2351 #ifdef PLATFORM_WIN32
2352 return MONO_NATIVE_LPWSTR;
2354 return MONO_NATIVE_LPSTR;
2357 return MONO_NATIVE_LPSTR;
2361 static MonoMarshalConv
2362 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2364 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2367 case MONO_NATIVE_LPWSTR:
2368 return MONO_MARSHAL_CONV_STR_LPWSTR;
2369 case MONO_NATIVE_LPSTR:
2370 return MONO_MARSHAL_CONV_STR_LPSTR;
2371 case MONO_NATIVE_LPTSTR:
2372 return MONO_MARSHAL_CONV_STR_LPTSTR;
2373 case MONO_NATIVE_BSTR:
2374 return MONO_MARSHAL_CONV_STR_BSTR;
2380 static MonoMarshalConv
2381 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2383 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2386 case MONO_NATIVE_LPWSTR:
2387 return MONO_MARSHAL_CONV_SB_LPWSTR;
2389 case MONO_NATIVE_LPSTR:
2390 return MONO_MARSHAL_CONV_SB_LPSTR;
2392 case MONO_NATIVE_LPTSTR:
2393 return MONO_MARSHAL_CONV_SB_LPTSTR;
2400 static MonoMarshalConv
2401 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2403 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2408 case MONO_NATIVE_LPWSTR:
2409 return MONO_MARSHAL_CONV_LPWSTR_STR;
2410 case MONO_NATIVE_LPSTR:
2411 return MONO_MARSHAL_CONV_LPSTR_STR;
2412 case MONO_NATIVE_LPTSTR:
2413 return MONO_MARSHAL_CONV_LPTSTR_STR;
2414 case MONO_NATIVE_BSTR:
2415 return MONO_MARSHAL_CONV_BSTR_STR;
2421 static MonoMarshalConv
2422 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2424 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2429 case MONO_NATIVE_LPWSTR:
2431 * mono_string_builder_to_utf16 does not allocate a
2432 * new buffer, so no need to free it.
2435 return MONO_MARSHAL_CONV_LPWSTR_SB;
2436 case MONO_NATIVE_LPSTR:
2437 return MONO_MARSHAL_CONV_LPSTR_SB;
2439 case MONO_NATIVE_LPTSTR:
2440 return MONO_MARSHAL_CONV_LPTSTR_SB;
2448 * Return whenever a field of a native structure or an array member needs to
2452 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2454 MonoMarshalNative encoding;
2455 MonoMarshalConv conv;
2458 case MONO_TYPE_VALUETYPE:
2459 /* FIXME: Optimize this */
2461 case MONO_TYPE_OBJECT:
2462 case MONO_TYPE_CLASS:
2463 if (t->data.klass == mono_defaults.stringbuilder_class) {
2465 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2469 case MONO_TYPE_STRING:
2470 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2471 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2477 static inline MonoMethod*
2478 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2482 mono_marshal_lock ();
2483 res = g_hash_table_lookup (cache, key);
2484 mono_marshal_unlock ();
2488 /* Create the method from the builder and place it in the cache */
2489 static inline MonoMethod*
2490 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2491 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2496 mono_loader_lock ();
2497 mono_marshal_lock ();
2498 res = g_hash_table_lookup (cache, key);
2500 /* This does not acquire any locks */
2501 res = mono_mb_create_method (mb, sig, max_stack);
2502 g_hash_table_insert (cache, key, res);
2503 g_hash_table_insert (wrapper_hash, res, key);
2505 mono_marshal_unlock ();
2506 mono_loader_unlock ();
2512 static inline MonoMethod*
2513 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2515 MonoMethod *res = NULL;
2516 MonoRemotingMethods *wrps;
2518 mono_marshal_lock ();
2519 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2522 switch (wrapper_type) {
2523 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2524 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2525 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2526 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2530 mono_marshal_unlock ();
2534 /* Create the method from the builder and place it in the cache */
2535 static inline MonoMethod*
2536 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2537 MonoMethodSignature *sig, int max_stack)
2539 MonoMethod **res = NULL;
2540 MonoRemotingMethods *wrps;
2541 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2543 mono_loader_lock ();
2544 mono_marshal_lock ();
2545 wrps = g_hash_table_lookup (cache, key);
2547 wrps = g_new0 (MonoRemotingMethods, 1);
2548 g_hash_table_insert (cache, key, wrps);
2551 switch (mb->method->wrapper_type) {
2552 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2553 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2554 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2555 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2556 default: g_assert_not_reached (); break;
2560 /* This does not acquire any locks */
2561 *res = mono_mb_create_method (mb, sig, max_stack);
2562 g_hash_table_insert (wrapper_hash, *res, key);
2565 mono_marshal_unlock ();
2566 mono_loader_unlock ();
2572 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2576 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2579 mono_marshal_lock ();
2580 res = g_hash_table_lookup (wrapper_hash, wrapper);
2581 mono_marshal_unlock ();
2586 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2588 MonoMethodSignature *sig;
2589 MonoMethodBuilder *mb;
2595 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2596 !strcmp (method->name, "BeginInvoke"));
2598 sig = signature_no_pinvoke (method);
2600 cache = method->klass->image->delegate_begin_invoke_cache;
2601 if ((res = mono_marshal_find_in_cache (cache, sig)))
2604 g_assert (sig->hasthis);
2606 name = mono_signature_to_name (sig, "begin_invoke");
2607 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2610 mb->method->save_lmf = 1;
2612 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2614 mono_mb_emit_ldarg (mb, 0);
2615 mono_mb_emit_ldloc (mb, params_var);
2616 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2617 emit_thread_interrupt_checkpoint (mb);
2618 mono_mb_emit_byte (mb, CEE_RET);
2620 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2626 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2628 MonoDomain *domain = mono_domain_get ();
2629 MonoAsyncResult *ares;
2630 MonoMethod *method = NULL;
2631 MonoMethodSignature *sig;
2632 MonoMethodMessage *msg;
2633 MonoObject *res, *exc;
2634 MonoArray *out_args;
2637 g_assert (delegate);
2639 if (!delegate->method_info || !delegate->method_info->method)
2640 g_assert_not_reached ();
2642 klass = delegate->object.vtable->klass;
2644 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2645 g_assert (method != NULL);
2647 sig = signature_no_pinvoke (method);
2649 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2651 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2654 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2655 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2656 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2657 mono_message_init (domain, msg, delegate->method_info, NULL);
2658 msg->call_type = CallType_EndInvoke;
2659 MONO_OBJECT_SETREF (msg, async_result, ares);
2660 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2663 res = mono_thread_pool_finish (ares, &out_args, &exc);
2666 if (((MonoException*)exc)->stack_trace) {
2667 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2669 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2671 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2674 mono_raise_exception ((MonoException*)exc);
2677 mono_method_return_message_restore (method, params, out_args);
2682 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2684 MonoType *t = mono_type_get_underlying_type (return_type);
2686 if (return_type->byref)
2687 return_type = &mono_defaults.int_class->byval_arg;
2690 case MONO_TYPE_VOID:
2691 g_assert_not_reached ();
2694 case MONO_TYPE_STRING:
2695 case MONO_TYPE_CLASS:
2696 case MONO_TYPE_OBJECT:
2697 case MONO_TYPE_ARRAY:
2698 case MONO_TYPE_SZARRAY:
2702 case MONO_TYPE_BOOLEAN:
2705 case MONO_TYPE_CHAR:
2715 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2716 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2718 case MONO_TYPE_GENERICINST:
2719 if (!mono_type_generic_inst_is_valuetype (return_type))
2722 case MONO_TYPE_VALUETYPE: {
2723 MonoClass *klass = mono_class_from_mono_type (return_type);
2724 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2725 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2729 g_warning ("type 0x%x not handled", return_type->type);
2730 g_assert_not_reached ();
2733 mono_mb_emit_byte (mb, CEE_RET);
2737 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2739 MonoMethodSignature *sig;
2740 MonoMethodBuilder *mb;
2746 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2747 !strcmp (method->name, "EndInvoke"));
2749 sig = signature_no_pinvoke (method);
2751 cache = method->klass->image->delegate_end_invoke_cache;
2752 if ((res = mono_marshal_find_in_cache (cache, sig)))
2755 g_assert (sig->hasthis);
2757 name = mono_signature_to_name (sig, "end_invoke");
2758 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2761 mb->method->save_lmf = 1;
2763 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2765 mono_mb_emit_ldarg (mb, 0);
2766 mono_mb_emit_ldloc (mb, params_var);
2767 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2768 emit_thread_interrupt_checkpoint (mb);
2770 if (sig->ret->type == MONO_TYPE_VOID) {
2771 mono_mb_emit_byte (mb, CEE_POP);
2772 mono_mb_emit_byte (mb, CEE_RET);
2774 mono_mb_emit_restore_result (mb, sig->ret);
2776 res = mono_mb_create_and_cache (cache, sig,
2777 mb, sig, sig->param_count + 16);
2784 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2786 MonoMethodMessage *msg;
2787 MonoTransparentProxy *this;
2788 MonoObject *res, *exc;
2789 MonoArray *out_args;
2791 this = *((MonoTransparentProxy **)params [0]);
2794 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2796 /* skip the this pointer */
2799 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2802 MonoMethodSignature *sig = mono_method_signature (method);
2803 int count = sig->param_count;
2804 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2806 for (i=0; i<count; i++) {
2807 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2808 if (class->valuetype) {
2809 if (sig->params [i]->byref)
2810 mparams[i] = *((gpointer *)params [i]);
2812 mparams[i] = params [i];
2814 mparams[i] = *((gpointer**)params [i]);
2818 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2821 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2823 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2826 mono_raise_exception ((MonoException *)exc);
2828 mono_method_return_message_restore (method, params, out_args);
2834 * cominterop_get_native_wrapper_adjusted:
2835 * @method: managed COM Interop method
2837 * Returns: the generated method to call with signature matching
2838 * the unmanaged COM Method signature
2841 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
2844 MonoMethodBuilder *mb_native;
2845 MonoMarshalSpec **mspecs;
2846 MonoMethodSignature *sig, *sig_native;
2847 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
2850 sig = mono_method_signature (method);
2852 // create unmanaged wrapper
2853 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
2854 sig_native = signature_cominterop (method->klass->image, sig);
2856 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
2857 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
2859 mono_method_get_marshal_info (method, mspecs);
2861 // move managed args up one
2862 for (i = sig->param_count; i >= 1; i--)
2863 mspecs[i+1] = mspecs[i];
2865 // first arg is IntPtr for interface
2868 // move return spec to last param
2869 if (!MONO_TYPE_IS_VOID (sig->ret))
2870 mspecs[sig_native->param_count] = mspecs[0];
2874 mono_marshal_emit_native_wrapper(mono_defaults.corlib, mb_native, sig_native, piinfo, mspecs, piinfo->addr);
2876 mono_loader_lock ();
2877 mono_marshal_lock ();
2878 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
2879 mono_marshal_unlock ();
2880 mono_loader_unlock ();
2882 mono_mb_free (mb_native);
2884 for (i = sig_native->param_count; i >= 0; i--)
2886 mono_metadata_free_marshal_spec (mspecs [i]);
2893 * cominterop_get_native_wrapper:
2894 * @method: managed method
2896 * Returns: the generated method to call
2899 cominterop_get_native_wrapper (MonoMethod *method)
2903 MonoMethodBuilder *mb;
2904 MonoMethodSignature *sig, *csig;
2908 cache = method->klass->image->cominterop_wrapper_cache;
2909 if ((res = mono_marshal_find_in_cache (cache, method)))
2912 sig = mono_method_signature (method);
2913 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
2915 /* if method klass is import, that means method
2916 * is really a com call. let interop system emit it.
2918 if (MONO_CLASS_IS_IMPORT(method->klass)) {
2919 /* FIXME: we have to call actual class .ctor
2920 * instead of just __ComObject .ctor.
2922 if (!strcmp(method->name, ".ctor")) {
2923 static MonoMethod *ctor = NULL;
2926 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
2927 mono_mb_emit_ldarg (mb, 0);
2928 mono_mb_emit_managed_call (mb, ctor, NULL);
2929 mono_mb_emit_byte (mb, CEE_RET);
2932 static MonoMethod * ThrowExceptionForHR = NULL;
2933 static MonoMethod * GetInterface = NULL;
2934 MonoMethod *adjusted_method;
2940 GetInterface = mono_class_get_method_from_name (mono_defaults.com_object_class, "GetInterface", 1);
2942 // add local variables
2943 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
2944 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2945 if (!MONO_TYPE_IS_VOID (sig->ret))
2946 retval = mono_mb_add_local (mb, sig->ret);
2948 // get the type for the interface the method is defined on
2949 // and then get the underlying COM interface for that type
2950 mono_mb_emit_ldarg (mb, 0);
2951 mono_mb_emit_ptr (mb, method);
2952 mono_mb_emit_icall (mb, cominterop_get_method_interface);
2953 mono_mb_emit_managed_call (mb, GetInterface, NULL);
2954 mono_mb_emit_stloc (mb, ptr_this);
2956 // arg 1 is unmanaged this pointer
2957 mono_mb_emit_ldloc (mb, ptr_this);
2960 for (i = 1; i <= sig->param_count; i++)
2961 mono_mb_emit_ldarg (mb, i);
2963 // push managed return value as byref last argument
2964 if (!MONO_TYPE_IS_VOID (sig->ret))
2965 mono_mb_emit_ldloc_addr (mb, retval);
2967 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
2968 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
2970 // store HRESULT to check
2971 mono_mb_emit_stloc (mb, hr);
2973 if (!ThrowExceptionForHR)
2974 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
2975 mono_mb_emit_ldloc (mb, hr);
2976 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
2978 // load return value managed is expecting
2979 if (!MONO_TYPE_IS_VOID (sig->ret))
2980 mono_mb_emit_ldloc (mb, retval);
2982 mono_mb_emit_byte (mb, CEE_RET);
2987 /* Does this case ever get hit? */
2989 char *msg = g_strdup ("non imported interfaces on \
2990 imported classes is not yet implemented.");
2991 mono_mb_emit_exception (mb, "NotSupportedException", msg);
2993 csig = signature_dup (method->klass->image, sig);
2995 res = mono_mb_create_and_cache (cache, method,
2996 mb, csig, csig->param_count + 16);
3002 * cominterop_get_invoke:
3003 * @method: managed method
3005 * Returns: the generated method that calls the underlying __ComObject
3006 * rather than the proxy object.
3009 cominterop_get_invoke (MonoMethod *method)
3011 MonoMethodSignature *sig;
3012 MonoMethodBuilder *mb;
3015 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3019 if ((res = mono_marshal_find_in_cache (cache, method)))
3022 sig = signature_no_pinvoke (method);
3024 /* we cant remote methods without this pointer */
3028 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3030 /* get real proxy object, which is a ComInteropProxy in this case*/
3031 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3032 mono_mb_emit_ldarg (mb, 0);
3033 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3034 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3036 /* load the RCW from the ComInteropProxy*/
3037 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3038 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3040 /* load args and make the call on the RCW */
3041 for (i = 1; i <= sig->param_count; i++)
3042 mono_mb_emit_ldarg (mb, i);
3044 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3045 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3046 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3049 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3050 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3052 mono_mb_emit_op (mb, CEE_CALL, method);
3055 if (!strcmp(method->name, ".ctor")) {
3056 static MonoClass *com_interop_proxy_class = NULL;
3057 static MonoMethod *cache_proxy = NULL;
3059 if (!com_interop_proxy_class)
3060 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3062 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3064 mono_mb_emit_ldarg (mb, 0);
3065 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3066 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3067 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3070 emit_thread_interrupt_checkpoint (mb);
3072 mono_mb_emit_byte (mb, CEE_RET);
3074 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3081 mono_marshal_get_remoting_invoke (MonoMethod *method)
3083 MonoMethodSignature *sig;
3084 MonoMethodBuilder *mb;
3090 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3093 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3094 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3095 return cominterop_get_invoke(method);
3097 sig = signature_no_pinvoke (method);
3099 /* we cant remote methods without this pointer */
3103 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3106 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3107 mb->method->save_lmf = 1;
3109 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3111 mono_mb_emit_ptr (mb, method);
3112 mono_mb_emit_ldloc (mb, params_var);
3113 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3114 emit_thread_interrupt_checkpoint (mb);
3116 if (sig->ret->type == MONO_TYPE_VOID) {
3117 mono_mb_emit_byte (mb, CEE_POP);
3118 mono_mb_emit_byte (mb, CEE_RET);
3120 mono_mb_emit_restore_result (mb, sig->ret);
3123 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3129 /* mono_get_xdomain_marshal_type()
3130 * Returns the kind of marshalling that a type needs for cross domain calls.
3132 static MonoXDomainMarshalType
3133 mono_get_xdomain_marshal_type (MonoType *t)
3136 case MONO_TYPE_VOID:
3137 g_assert_not_reached ();
3141 case MONO_TYPE_BOOLEAN:
3144 case MONO_TYPE_CHAR:
3151 return MONO_MARSHAL_NONE;
3152 case MONO_TYPE_STRING:
3153 return MONO_MARSHAL_COPY;
3154 case MONO_TYPE_ARRAY:
3155 case MONO_TYPE_SZARRAY: {
3156 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3157 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3158 return MONO_MARSHAL_COPY;
3163 if (mono_class_from_mono_type (t) == mono_defaults.stringbuilder_class)
3164 return MONO_MARSHAL_COPY;
3166 return MONO_MARSHAL_SERIALIZE;
3170 /* mono_marshal_xdomain_copy_value
3171 * Makes a copy of "val" suitable for the current domain.
3174 mono_marshal_xdomain_copy_value (MonoObject *val)
3177 if (val == NULL) return NULL;
3179 domain = mono_domain_get ();
3181 switch (mono_object_class (val)->byval_arg.type) {
3182 case MONO_TYPE_VOID:
3183 g_assert_not_reached ();
3187 case MONO_TYPE_BOOLEAN:
3190 case MONO_TYPE_CHAR:
3196 case MONO_TYPE_R8: {
3197 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3199 case MONO_TYPE_STRING: {
3200 MonoString *str = (MonoString *) val;
3201 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3203 case MONO_TYPE_ARRAY:
3204 case MONO_TYPE_SZARRAY: {
3206 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3207 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3208 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3209 if (mt == MONO_MARSHAL_COPY) {
3210 int i, len = mono_array_length (acopy);
3211 for (i = 0; i < len; i++) {
3212 MonoObject *item = mono_array_get (acopy, gpointer, i);
3213 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3216 return (MonoObject *) acopy;
3220 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3221 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3222 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3223 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3224 newsb->length = oldsb->length;
3225 newsb->max_capacity = (gint32)0x7fffffff;
3226 return (MonoObject *) newsb;
3231 /* mono_marshal_xdomain_copy_out_value()
3232 * Copies the contents of the src instance into the dst instance. src and dst
3233 * must have the same type, and if they are arrays, the same size.
3236 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3238 if (src == NULL || dst == NULL) return;
3240 g_assert (mono_object_class (src) == mono_object_class (dst));
3242 switch (mono_object_class (src)->byval_arg.type) {
3243 case MONO_TYPE_ARRAY:
3244 case MONO_TYPE_SZARRAY: {
3245 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3246 if (mt == MONO_MARSHAL_SERIALIZE) return;
3247 if (mt == MONO_MARSHAL_COPY) {
3248 int i, len = mono_array_length ((MonoArray *)dst);
3249 for (i = 0; i < len; i++) {
3250 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3251 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3254 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3260 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3261 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3262 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3264 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)));
3265 dst_sb->cached_str = NULL;
3266 dst_sb->length = src_sb->length;
3271 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3273 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3274 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3278 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3280 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3283 /* mono_marshal_supports_fast_xdomain()
3284 * Returns TRUE if the method can use the fast xdomain wrapper.
3287 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3289 return !method->klass->contextbound &&
3290 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3294 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3296 MonoDomain *current_domain = mono_domain_get ();
3297 MonoDomain *domain = mono_domain_get_by_id (id);
3299 if (!domain || !mono_domain_set (domain, FALSE))
3300 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3303 mono_thread_push_appdomain_ref (domain);
3305 mono_thread_pop_appdomain_ref ();
3307 return current_domain->domain_id;
3311 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3313 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3316 /* mono_marshal_emit_load_domain_method ()
3317 * Loads into the stack a pointer to the code of the provided method for
3318 * the current domain.
3321 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3323 /* We need a pointer to the method for the running domain (not the domain
3324 * that compiles the method).
3326 mono_mb_emit_ptr (mb, method);
3327 mono_mb_emit_icall (mb, mono_compile_method);
3330 /* mono_marshal_check_domain_image ()
3331 * Returns TRUE if the image is loaded in the specified
3332 * application domain.
3335 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3340 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3344 mono_domain_assemblies_lock (domain);
3345 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3347 if (ass->image == image)
3350 mono_domain_assemblies_unlock (domain);
3355 /* mono_marshal_get_xappdomain_dispatch ()
3356 * Generates a method that dispatches a method call from another domain into
3357 * the current domain.
3360 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3362 MonoMethodSignature *sig, *csig;
3363 MonoMethodBuilder *mb;
3365 int i, j, param_index, copy_locals_base;
3366 MonoClass *ret_class = NULL;
3367 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3368 MonoExceptionClause *main_clause;
3369 MonoMethodHeader *header;
3371 gboolean copy_return;
3373 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3376 sig = mono_method_signature (method);
3377 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3380 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3381 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3382 csig->params [j++] = &byte_array_class->this_arg;
3383 csig->params [j++] = &byte_array_class->this_arg;
3384 for (i = 0; i < sig->param_count; i++) {
3385 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3386 csig->params [j++] = sig->params [i];
3389 csig->ret = sig->ret;
3391 csig->ret = &mono_defaults.void_class->byval_arg;
3393 csig->hasthis = FALSE;
3395 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3396 mb->method->save_lmf = 1;
3400 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3401 if (complex_count > 0)
3402 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3403 if (sig->ret->type != MONO_TYPE_VOID) {
3404 loc_return = mono_mb_add_local (mb, sig->ret);
3405 ret_class = mono_class_from_mono_type (sig->ret);
3410 main_clause = g_new0 (MonoExceptionClause, 1);
3411 main_clause->try_offset = mb->pos;
3413 /* Clean the call context */
3415 mono_mb_emit_byte (mb, CEE_LDNULL);
3416 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3417 mono_mb_emit_byte (mb, CEE_POP);
3419 /* Deserialize call data */
3421 mono_mb_emit_ldarg (mb, 1);
3422 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3423 mono_mb_emit_byte (mb, CEE_DUP);
3424 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3426 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3427 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3429 if (complex_count > 0)
3430 mono_mb_emit_stloc (mb, loc_array);
3432 mono_mb_emit_byte (mb, CEE_POP);
3434 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
3436 /* Get the target object */
3438 mono_mb_emit_ldarg (mb, 0);
3439 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3441 /* Load the arguments */
3443 copy_locals_base = mb->locals;
3444 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3446 for (i = 0; i < sig->param_count; i++) {
3447 MonoType *pt = sig->params [i];
3448 MonoClass *pclass = mono_class_from_mono_type (pt);
3449 switch (marshal_types [i]) {
3450 case MONO_MARSHAL_SERIALIZE: {
3451 /* take the value from the serialized array */
3452 mono_mb_emit_ldloc (mb, loc_array);
3453 mono_mb_emit_icon (mb, j++);
3455 if (pclass->valuetype) {
3456 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3457 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3459 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3462 if (pclass->valuetype) {
3463 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3464 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3465 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3467 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3468 if (pclass != mono_defaults.object_class) {
3469 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3475 case MONO_MARSHAL_COPY_OUT: {
3476 /* Keep a local copy of the value since we need to copy it back after the call */
3477 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3478 mono_mb_emit_ldarg (mb, param_index++);
3479 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3480 mono_mb_emit_byte (mb, CEE_DUP);
3481 mono_mb_emit_stloc (mb, copy_local);
3484 case MONO_MARSHAL_COPY: {
3485 mono_mb_emit_ldarg (mb, param_index);
3487 mono_mb_emit_byte (mb, CEE_DUP);
3488 mono_mb_emit_byte (mb, CEE_DUP);
3489 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3490 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3491 mono_mb_emit_byte (mb, CEE_STIND_REF);
3493 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3498 case MONO_MARSHAL_NONE:
3499 mono_mb_emit_ldarg (mb, param_index++);
3504 /* Make the call to the real object */
3506 emit_thread_force_interrupt_checkpoint (mb);
3508 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3510 if (sig->ret->type != MONO_TYPE_VOID)
3511 mono_mb_emit_stloc (mb, loc_return);
3513 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3517 for (i = 0; i < sig->param_count; i++) {
3518 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3519 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3520 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3521 mono_mb_emit_ldarg (mb, param_index);
3522 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3527 /* Serialize the return values */
3529 if (complex_out_count > 0) {
3530 /* Reset parameters in the array that don't need to be serialized back */
3532 for (i = 0; i < sig->param_count; i++) {
3533 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3534 if (!sig->params [i]->byref) {
3535 mono_mb_emit_ldloc (mb, loc_array);
3536 mono_mb_emit_icon (mb, j);
3537 mono_mb_emit_byte (mb, CEE_LDNULL);
3538 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3543 /* Add the return value to the array */
3545 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3546 mono_mb_emit_ldloc (mb, loc_array);
3547 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3548 mono_mb_emit_ldloc (mb, loc_return);
3549 if (ret_class->valuetype) {
3550 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3552 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3557 mono_mb_emit_ldarg (mb, 1);
3558 mono_mb_emit_ldloc (mb, loc_array);
3559 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3560 mono_mb_emit_byte (mb, CEE_STIND_REF);
3561 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3562 mono_mb_emit_ldarg (mb, 1);
3563 mono_mb_emit_ldloc (mb, loc_return);
3564 if (ret_class->valuetype) {
3565 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3567 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3568 mono_mb_emit_byte (mb, CEE_STIND_REF);
3570 mono_mb_emit_ldarg (mb, 1);
3571 mono_mb_emit_byte (mb, CEE_LDNULL);
3572 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3573 mono_mb_emit_byte (mb, CEE_STIND_REF);
3576 mono_mb_emit_ldarg (mb, 2);
3577 mono_mb_emit_byte (mb, CEE_LDNULL);
3578 mono_mb_emit_byte (mb, CEE_STIND_REF);
3579 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3581 /* Main exception catch */
3582 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3583 main_clause->try_len = mb->pos - main_clause->try_offset;
3584 main_clause->data.catch_class = mono_defaults.object_class;
3587 main_clause->handler_offset = mb->pos;
3588 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3589 mono_mb_emit_stloc (mb, loc_serialized_exc);
3590 mono_mb_emit_ldarg (mb, 2);
3591 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3592 mono_mb_emit_byte (mb, CEE_STIND_REF);
3593 mono_mb_emit_branch (mb, CEE_LEAVE);
3594 main_clause->handler_len = mb->pos - main_clause->handler_offset;
3597 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
3600 mono_mb_emit_ldloc (mb, loc_return);
3602 mono_mb_emit_byte (mb, CEE_RET);
3604 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3607 header = ((MonoMethodNormal *)res)->header;
3608 header->num_clauses = 1;
3609 header->clauses = main_clause;
3614 /* mono_marshal_get_xappdomain_invoke ()
3615 * Generates a fast remoting wrapper for cross app domain calls.
3618 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3620 MonoMethodSignature *sig;
3621 MonoMethodBuilder *mb;
3623 int i, j, complex_count, complex_out_count, copy_locals_base;
3625 MonoClass *ret_class = NULL;
3626 MonoMethod *xdomain_method;
3627 int ret_marshal_type = MONO_MARSHAL_NONE;
3628 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3629 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3630 int pos, pos_dispatch, pos_noex;
3631 gboolean copy_return = FALSE;
3635 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3638 /* we cant remote methods without this pointer */
3639 if (!mono_method_signature (method)->hasthis)
3642 if (!mono_marshal_supports_fast_xdomain (method))
3643 return mono_marshal_get_remoting_invoke (method);
3645 mono_remoting_marshal_init ();
3647 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3650 sig = signature_no_pinvoke (method);
3652 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3653 mb->method->save_lmf = 1;
3655 /* Count the number of parameters that need to be serialized */
3657 marshal_types = alloca (sizeof (int) * sig->param_count);
3658 complex_count = complex_out_count = 0;
3659 for (i = 0; i < sig->param_count; i++) {
3660 MonoType *ptype = sig->params[i];
3661 int mt = mono_get_xdomain_marshal_type (ptype);
3663 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3664 * the copy will be made by reusing the original object instance
3666 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3667 mt = MONO_MARSHAL_COPY_OUT;
3668 else if (mt == MONO_MARSHAL_SERIALIZE) {
3670 if (ptype->byref) complex_out_count++;
3672 marshal_types [i] = mt;
3675 if (sig->ret->type != MONO_TYPE_VOID) {
3676 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3677 ret_class = mono_class_from_mono_type (sig->ret);
3678 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3683 if (complex_count > 0)
3684 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3685 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3686 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3688 loc_return = mono_mb_add_local (mb, sig->ret);
3689 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3690 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3691 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3692 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3694 /* Save thread domain data */
3696 mono_mb_emit_icall (mb, mono_context_get);
3697 mono_mb_emit_byte (mb, CEE_DUP);
3698 mono_mb_emit_stloc (mb, loc_context);
3700 /* If the thread is not running in the default context, it needs to go
3701 * through the whole remoting sink, since the context is going to change
3703 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3704 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3706 /* Another case in which the fast path can't be used: when the target domain
3707 * has a different image for the same assembly.
3710 /* Get the target domain id */
3712 mono_mb_emit_ldarg (mb, 0);
3713 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3714 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3715 mono_mb_emit_byte (mb, CEE_DUP);
3716 mono_mb_emit_stloc (mb, loc_real_proxy);
3718 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3719 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3720 mono_mb_emit_stloc (mb, loc_domainid);
3722 /* Check if the target domain has the same image for the required assembly */
3724 mono_mb_emit_ldloc (mb, loc_domainid);
3725 mono_mb_emit_ptr (mb, method->klass->image);
3726 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3727 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3729 /* Use the whole remoting sink to dispatch this message */
3731 mono_mb_patch_short_branch (mb, pos);
3733 mono_mb_emit_ldarg (mb, 0);
3734 for (i = 0; i < sig->param_count; i++)
3735 mono_mb_emit_ldarg (mb, i + 1);
3737 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3738 mono_mb_emit_byte (mb, CEE_RET);
3739 mono_mb_patch_short_branch (mb, pos_dispatch);
3741 /* Create the array that will hold the parameters to be serialized */
3743 if (complex_count > 0) {
3744 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 */
3745 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3748 for (i = 0; i < sig->param_count; i++) {
3750 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3751 pclass = mono_class_from_mono_type (sig->params[i]);
3752 mono_mb_emit_byte (mb, CEE_DUP);
3753 mono_mb_emit_icon (mb, j);
3754 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3755 if (sig->params[i]->byref) {
3756 if (pclass->valuetype)
3757 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3759 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3761 if (pclass->valuetype)
3762 mono_mb_emit_op (mb, CEE_BOX, pclass);
3763 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3766 mono_mb_emit_stloc (mb, loc_array);
3768 /* Serialize parameters */
3770 mono_mb_emit_ldloc (mb, loc_array);
3771 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3772 mono_mb_emit_stloc (mb, loc_serialized_data);
3774 mono_mb_emit_byte (mb, CEE_LDNULL);
3775 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3776 mono_mb_emit_stloc (mb, loc_serialized_data);
3781 mono_mb_emit_ldloc (mb, loc_domainid);
3782 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3783 mono_marshal_emit_switch_domain (mb);
3784 mono_mb_emit_stloc (mb, loc_old_domainid);
3786 /* Load the arguments */
3788 mono_mb_emit_ldloc (mb, loc_real_proxy);
3789 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3790 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3792 copy_locals_base = mb->locals;
3793 for (i = 0; i < sig->param_count; i++) {
3794 switch (marshal_types [i]) {
3795 case MONO_MARSHAL_SERIALIZE:
3797 case MONO_MARSHAL_COPY: {
3798 mono_mb_emit_ldarg (mb, i+1);
3799 if (sig->params [i]->byref) {
3800 /* make a local copy of the byref parameter. The real parameter
3801 * will be updated after the xdomain call
3803 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3804 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3805 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3806 mono_mb_emit_stloc (mb, copy_local);
3807 mono_mb_emit_ldloc_addr (mb, copy_local);
3811 case MONO_MARSHAL_COPY_OUT:
3812 case MONO_MARSHAL_NONE:
3813 mono_mb_emit_ldarg (mb, i+1);
3818 /* Make the call to the invoke wrapper in the target domain */
3820 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3821 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3822 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3825 mono_mb_emit_stloc (mb, loc_return);
3829 mono_mb_emit_ldloc (mb, loc_old_domainid);
3830 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3831 mono_marshal_emit_switch_domain (mb);
3832 mono_mb_emit_byte (mb, CEE_POP);
3834 /* Restore thread domain data */
3836 mono_mb_emit_ldloc (mb, loc_context);
3837 mono_mb_emit_icall (mb, mono_context_set);
3839 /* if (loc_serialized_exc != null) ... */
3841 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3842 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3844 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3845 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3846 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3847 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3848 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3849 mono_mb_emit_byte (mb, CEE_THROW);
3850 mono_mb_patch_addr_s (mb, pos_noex, mb->pos - pos_noex - 1);
3852 /* copy back non-serialized output parameters */
3855 for (i = 0; i < sig->param_count; i++) {
3856 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3857 mono_mb_emit_ldarg (mb, i + 1);
3858 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3859 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3860 mono_mb_emit_byte (mb, CEE_STIND_REF);
3863 /* Deserialize out parameters */
3865 if (complex_out_count > 0) {
3866 mono_mb_emit_ldloc (mb, loc_serialized_data);
3867 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3868 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3869 mono_mb_emit_stloc (mb, loc_array);
3871 /* Copy back output parameters and return type */
3874 for (i = 0; i < sig->param_count; i++) {
3875 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3876 if (sig->params[i]->byref) {
3877 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3878 mono_mb_emit_ldarg (mb, i + 1);
3879 mono_mb_emit_ldloc (mb, loc_array);
3880 mono_mb_emit_icon (mb, j);
3881 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3882 if (pclass->valuetype) {
3883 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3884 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3885 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3887 if (pclass != mono_defaults.object_class)
3888 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3889 mono_mb_emit_byte (mb, CEE_STIND_REF);
3895 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3896 mono_mb_emit_ldloc (mb, loc_array);
3897 mono_mb_emit_icon (mb, complex_count);
3898 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3899 if (ret_class->valuetype) {
3900 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3901 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3904 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3905 mono_mb_emit_ldloc (mb, loc_serialized_data);
3906 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3907 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3908 if (ret_class->valuetype) {
3909 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3910 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3911 } else if (ret_class != mono_defaults.object_class) {
3912 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3915 mono_mb_emit_ldloc (mb, loc_serialized_data);
3916 mono_mb_emit_byte (mb, CEE_DUP);
3917 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3918 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3920 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
3921 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3922 mono_mb_emit_byte (mb, CEE_POP);
3926 mono_mb_emit_ldloc (mb, loc_return);
3927 if (ret_marshal_type == MONO_MARSHAL_COPY)
3928 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3931 mono_mb_emit_byte (mb, CEE_RET);
3933 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3940 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3942 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
3943 return mono_marshal_get_xappdomain_invoke (method);
3944 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
3945 return cominterop_get_invoke (method);
3947 return mono_marshal_get_remoting_invoke (method);
3950 G_GNUC_UNUSED static gpointer
3951 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3953 if (rp->target_domain_id != -1)
3954 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3956 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3960 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3962 MonoMethodSignature *sig;
3963 MonoMethodBuilder *mb;
3964 MonoMethod *res, *native;
3965 int i, pos, pos_rem;
3969 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3972 sig = signature_no_pinvoke (method);
3974 /* we cant remote methods without this pointer */
3975 g_assert (sig->hasthis);
3977 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3980 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3982 for (i = 0; i <= sig->param_count; i++)
3983 mono_mb_emit_ldarg (mb, i);
3985 mono_mb_emit_ldarg (mb, 0);
3986 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3988 if (mono_marshal_supports_fast_xdomain (method)) {
3989 mono_mb_emit_ldarg (mb, 0);
3990 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3992 /* wrapper for cross app domain calls */
3993 native = mono_marshal_get_xappdomain_invoke (method);
3994 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3995 mono_mb_emit_byte (mb, CEE_RET);
3997 mono_mb_patch_addr (mb, pos_rem, mb->pos - (pos_rem + 4));
3999 /* wrapper for normal remote calls */
4000 native = mono_marshal_get_remoting_invoke (method);
4001 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4002 mono_mb_emit_byte (mb, CEE_RET);
4005 mono_mb_patch_branch (mb, pos);
4006 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4007 mono_mb_emit_byte (mb, CEE_RET);
4009 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4016 * the returned method invokes all methods in a multicast delegate
4019 mono_marshal_get_delegate_invoke (MonoMethod *method)
4021 MonoMethodSignature *sig, *static_sig;
4023 MonoMethodBuilder *mb;
4029 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4030 !strcmp (method->name, "Invoke"));
4032 sig = signature_no_pinvoke (method);
4034 cache = method->klass->image->delegate_invoke_cache;
4035 if ((res = mono_marshal_find_in_cache (cache, sig)))
4038 static_sig = signature_dup (method->klass->image, sig);
4039 static_sig->hasthis = 0;
4041 name = mono_signature_to_name (sig, "invoke");
4042 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4045 /* allocate local 0 (object) */
4046 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4048 g_assert (sig->hasthis);
4052 * prev.Invoke( args .. );
4053 * return this.<target>( args .. );
4056 /* this wrapper can be used in unmanaged-managed transitions */
4057 emit_thread_interrupt_checkpoint (mb);
4059 /* get this->prev */
4060 mono_mb_emit_ldarg (mb, 0);
4061 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4062 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4063 mono_mb_emit_stloc (mb, 0);
4065 /* if prev != null */
4066 mono_mb_emit_ldloc (mb, 0);
4067 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4070 mono_mb_emit_ldloc (mb, 0);
4071 for (i = 0; i < sig->param_count; i++)
4072 mono_mb_emit_ldarg (mb, i + 1);
4073 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4074 if (sig->ret->type != MONO_TYPE_VOID)
4075 mono_mb_emit_byte (mb, CEE_POP);
4077 /* continued or prev == null */
4078 mono_mb_patch_branch (mb, pos0);
4080 /* get this->target */
4081 mono_mb_emit_ldarg (mb, 0);
4082 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4083 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4084 mono_mb_emit_stloc (mb, 0);
4086 /* if target != null */
4087 mono_mb_emit_ldloc (mb, 0);
4088 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4090 /* then call this->method_ptr nonstatic */
4091 mono_mb_emit_ldloc (mb, 0);
4092 for (i = 0; i < sig->param_count; ++i)
4093 mono_mb_emit_ldarg (mb, i + 1);
4094 mono_mb_emit_ldarg (mb, 0);
4095 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4096 mono_mb_emit_byte (mb, CEE_LDIND_I );
4097 mono_mb_emit_op (mb, CEE_CALLI, sig);
4099 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4101 /* else [target == null] call this->method_ptr static */
4102 mono_mb_patch_branch (mb, pos0);
4104 for (i = 0; i < sig->param_count; ++i)
4105 mono_mb_emit_ldarg (mb, i + 1);
4106 mono_mb_emit_ldarg (mb, 0);
4107 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4108 mono_mb_emit_byte (mb, CEE_LDIND_I );
4109 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4112 mono_mb_patch_branch (mb, pos1);
4113 mono_mb_emit_byte (mb, CEE_RET);
4115 res = mono_mb_create_and_cache (cache, sig,
4116 mb, sig, sig->param_count + 16);
4123 * signature_dup_add_this:
4125 * Make a copy of @sig, adding an explicit this argument.
4127 static MonoMethodSignature*
4128 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4130 MonoMethodSignature *res;
4133 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4134 memcpy (res, sig, sizeof (MonoMethodSignature));
4135 res->param_count = sig->param_count + 1;
4136 res->hasthis = FALSE;
4137 for (i = sig->param_count - 1; i >= 0; i --)
4138 res->params [i + 1] = sig->params [i];
4139 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4146 MonoMethodSignature *sig;
4152 * generates IL code for the runtime invoke function
4153 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4155 * we also catch exceptions if exc != null
4158 mono_marshal_get_runtime_invoke (MonoMethod *method)
4160 MonoMethodSignature *sig, *csig, *callsig;
4161 MonoExceptionClause *clause;
4162 MonoMethodHeader *header;
4163 MonoMethodBuilder *mb;
4164 GHashTable *cache = NULL;
4165 MonoClass *target_klass;
4166 MonoMethod *res = NULL;
4168 static MonoString *string_dummy = NULL;
4169 static MonoMethodSignature *dealy_abort_sig = NULL;
4175 target_klass = method->klass;
4177 mono_marshal_lock ();
4179 if (method->string_ctor) {
4180 static GSList *strsig_list = NULL;
4184 for (item = strsig_list; item; item = item->next) {
4186 if (mono_metadata_signature_equal (mono_method_signature (method), mono_method_signature (cs->ctor))) {
4192 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4193 callsig->ret = &mono_defaults.string_class->byval_arg;
4194 cs = g_new (CtorSigPair, 1);
4197 strsig_list = g_slist_prepend (strsig_list, cs);
4200 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4202 * Valuetype methods receive a managed pointer as the this argument.
4203 * Create a new signature to reflect this.
4205 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4207 callsig = mono_method_signature (method);
4211 cache = method->klass->image->runtime_invoke_cache;
4213 /* from mono_marshal_find_in_cache */
4214 res = g_hash_table_lookup (cache, callsig);
4215 mono_marshal_unlock ();
4221 if (!dealy_abort_sig) {
4222 dealy_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4223 dealy_abort_sig->ret = &mono_defaults.void_class->byval_arg;
4224 dealy_abort_sig->pinvoke = 0;
4227 target_klass = mono_defaults.object_class;
4229 /* to make it work with our special string constructors */
4230 if (!string_dummy) {
4231 MONO_GC_REGISTER_ROOT (string_dummy);
4232 string_dummy = mono_string_new_wrapper ("dummy");
4235 sig = mono_method_signature (method);
4237 csig = mono_metadata_signature_alloc (method->klass->image, 4);
4239 csig->ret = &mono_defaults.object_class->byval_arg;
4240 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4241 csig->params [0] = callsig->params [0];
4243 csig->params [0] = &mono_defaults.object_class->byval_arg;
4244 csig->params [1] = &mono_defaults.int_class->byval_arg;
4245 csig->params [2] = &mono_defaults.int_class->byval_arg;
4246 csig->params [3] = &mono_defaults.int_class->byval_arg;
4248 name = mono_signature_to_name (callsig, "runtime_invoke");
4249 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4252 /* allocate local 0 (object) tmp */
4253 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4254 /* allocate local 1 (object) exc */
4255 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4257 /* cond set *exc to null */
4258 mono_mb_emit_byte (mb, CEE_LDARG_2);
4259 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4260 mono_mb_emit_byte (mb, 3);
4261 mono_mb_emit_byte (mb, CEE_LDARG_2);
4262 mono_mb_emit_byte (mb, CEE_LDNULL);
4263 mono_mb_emit_byte (mb, CEE_STIND_REF);
4265 emit_thread_force_interrupt_checkpoint (mb);
4268 if (method->string_ctor) {
4269 mono_mb_emit_ptr (mb, string_dummy);
4271 mono_mb_emit_ldarg (mb, 0);
4275 for (i = 0; i < sig->param_count; i++) {
4276 MonoType *t = sig->params [i];
4279 mono_mb_emit_ldarg (mb, 1);
4281 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4282 mono_mb_emit_byte (mb, CEE_ADD);
4284 mono_mb_emit_byte (mb, CEE_LDIND_I);
4289 type = sig->params [i]->type;
4293 case MONO_TYPE_BOOLEAN:
4297 case MONO_TYPE_CHAR:
4306 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4308 case MONO_TYPE_STRING:
4309 case MONO_TYPE_CLASS:
4310 case MONO_TYPE_ARRAY:
4312 case MONO_TYPE_SZARRAY:
4313 case MONO_TYPE_OBJECT:
4316 case MONO_TYPE_GENERICINST:
4317 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4323 case MONO_TYPE_VALUETYPE:
4324 if (t->data.klass->enumtype) {
4325 type = t->data.klass->enum_basetype->type;
4328 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4329 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4330 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4331 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4333 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4337 g_assert_not_reached ();
4341 mono_mb_emit_ldarg (mb, 3);
4342 mono_mb_emit_calli (mb, callsig);
4344 if (sig->ret->byref) {
4346 g_assert_not_reached ();
4350 switch (sig->ret->type) {
4351 case MONO_TYPE_VOID:
4352 if (!method->string_ctor)
4353 mono_mb_emit_byte (mb, CEE_LDNULL);
4355 case MONO_TYPE_BOOLEAN:
4356 case MONO_TYPE_CHAR:
4369 case MONO_TYPE_VALUETYPE:
4370 case MONO_TYPE_TYPEDBYREF:
4371 case MONO_TYPE_GENERICINST:
4372 /* box value types */
4373 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4375 case MONO_TYPE_STRING:
4376 case MONO_TYPE_CLASS:
4377 case MONO_TYPE_ARRAY:
4378 case MONO_TYPE_SZARRAY:
4379 case MONO_TYPE_OBJECT:
4384 g_assert_not_reached ();
4387 mono_mb_emit_stloc (mb, 0);
4389 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4391 mono_loader_lock ();
4392 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
4393 mono_loader_unlock ();
4394 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4395 clause->try_len = mb->pos;
4398 clause->data.filter_offset = mb->pos;
4400 mono_mb_emit_byte (mb, CEE_POP);
4401 mono_mb_emit_byte (mb, CEE_LDARG_2);
4402 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4403 mono_mb_emit_byte (mb, CEE_PREFIX1);
4404 mono_mb_emit_byte (mb, CEE_CGT_UN);
4405 mono_mb_emit_byte (mb, CEE_PREFIX1);
4406 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4408 clause->handler_offset = mb->pos;
4411 /* store exception */
4412 mono_mb_emit_stloc (mb, 1);
4414 mono_mb_emit_byte (mb, CEE_LDARG_2);
4415 mono_mb_emit_ldloc (mb, 1);
4416 mono_mb_emit_byte (mb, CEE_STIND_REF);
4418 mono_mb_emit_byte (mb, CEE_LDNULL);
4419 mono_mb_emit_stloc (mb, 0);
4421 /* Check for the abort exception */
4422 mono_mb_emit_ldloc (mb, 1);
4423 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4424 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4426 /* Delay the abort exception */
4427 mono_mb_emit_native_call (mb, dealy_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
4429 mono_mb_patch_short_branch (mb, posna);
4430 mono_mb_emit_branch (mb, CEE_LEAVE);
4432 clause->handler_len = mb->pos - clause->handler_offset;
4435 mono_mb_patch_branch (mb, pos);
4436 mono_mb_emit_ldloc (mb, 0);
4437 mono_mb_emit_byte (mb, CEE_RET);
4439 /* taken from mono_mb_create_and_cache */
4440 mono_loader_lock ();
4441 mono_marshal_lock ();
4443 res = g_hash_table_lookup (cache, callsig);
4444 /* Somebody may have created it before us */
4446 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
4447 g_hash_table_insert (cache, callsig, res);
4448 g_hash_table_insert (wrapper_hash, res, callsig);
4451 mono_marshal_unlock ();
4452 mono_loader_unlock ();
4453 /* end mono_mb_create_and_cache */
4457 header = ((MonoMethodNormal *)res)->header;
4458 header->num_clauses = 1;
4459 header->clauses = clause;
4465 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4467 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4468 klass->name_space, klass->name);
4470 mono_mb_emit_exception_marshal_directive (mb, msg);
4474 * mono_marshal_get_ldfld_remote_wrapper:
4475 * @klass: The return type
4477 * This method generates a wrapper for calling mono_load_remote_field_new with
4478 * the appropriate return type.
4481 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4483 MonoMethodSignature *sig, *csig;
4484 MonoMethodBuilder *mb;
4489 cache = klass->image->ldfld_remote_wrapper_cache;
4490 if ((res = mono_marshal_find_in_cache (cache, klass)))
4494 * This wrapper is similar to an icall wrapper but all the wrappers
4495 * call the same C function, but with a different signature.
4497 name = g_strdup_printf ("__mono_load_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
4498 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD_REMOTE);
4501 mb->method->save_lmf = 1;
4503 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4504 sig->params [0] = &mono_defaults.object_class->byval_arg;
4505 sig->params [1] = &mono_defaults.int_class->byval_arg;
4506 sig->params [2] = &mono_defaults.int_class->byval_arg;
4507 sig->ret = &klass->this_arg;
4509 mono_mb_emit_ldarg (mb, 0);
4510 mono_mb_emit_ldarg (mb, 1);
4511 mono_mb_emit_ldarg (mb, 2);
4513 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4514 csig->params [0] = &mono_defaults.object_class->byval_arg;
4515 csig->params [1] = &mono_defaults.int_class->byval_arg;
4516 csig->params [2] = &mono_defaults.int_class->byval_arg;
4517 csig->ret = &klass->this_arg;
4520 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4521 emit_thread_interrupt_checkpoint (mb);
4523 mono_mb_emit_byte (mb, CEE_RET);
4525 res = mono_mb_create_and_cache (cache, klass,
4526 mb, sig, sig->param_count + 16);
4533 * mono_marshal_get_ldfld_wrapper:
4534 * @type: the type of the field
4536 * This method generates a function which can be use to load a field with type
4537 * @type from an object. The generated function has the following signature:
4538 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4541 mono_marshal_get_ldfld_wrapper (MonoType *type)
4543 MonoMethodSignature *sig;
4544 MonoMethodBuilder *mb;
4549 int t, pos0, pos1 = 0;
4551 type = mono_type_get_underlying_type (type);
4556 if (type->type == MONO_TYPE_SZARRAY) {
4557 klass = mono_defaults.array_class;
4558 } else if (type->type == MONO_TYPE_VALUETYPE) {
4559 klass = type->data.klass;
4560 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4561 klass = mono_defaults.object_class;
4562 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4563 klass = mono_defaults.int_class;
4564 } else if (t == MONO_TYPE_GENERICINST) {
4565 if (mono_type_generic_inst_is_valuetype (type))
4566 klass = mono_class_from_mono_type (type);
4568 klass = mono_defaults.object_class;
4570 klass = mono_class_from_mono_type (type);
4573 klass = mono_defaults.int_class;
4576 cache = klass->image->ldfld_wrapper_cache;
4577 if ((res = mono_marshal_find_in_cache (cache, klass)))
4580 /* we add the %p pointer value of klass because class names are not unique */
4581 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4582 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4585 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4586 sig->params [0] = &mono_defaults.object_class->byval_arg;
4587 sig->params [1] = &mono_defaults.int_class->byval_arg;
4588 sig->params [2] = &mono_defaults.int_class->byval_arg;
4589 sig->params [3] = &mono_defaults.int_class->byval_arg;
4590 sig->ret = &klass->byval_arg;
4592 mono_mb_emit_ldarg (mb, 0);
4593 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4595 mono_mb_emit_ldarg (mb, 0);
4596 mono_mb_emit_ldarg (mb, 1);
4597 mono_mb_emit_ldarg (mb, 2);
4599 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4602 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4603 csig->params [0] = &mono_defaults.object_class->byval_arg;
4604 csig->params [1] = &mono_defaults.int_class->byval_arg;
4605 csig->params [2] = &mono_defaults.int_class->byval_arg;
4606 csig->ret = &klass->this_arg;
4609 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4610 emit_thread_interrupt_checkpoint (mb);
4613 if (klass->valuetype) {
4614 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4615 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4617 mono_mb_emit_byte (mb, CEE_RET);
4621 mono_mb_patch_branch (mb, pos0);
4623 mono_mb_emit_ldarg (mb, 0);
4624 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4625 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4626 mono_mb_emit_ldarg (mb, 3);
4627 mono_mb_emit_byte (mb, CEE_ADD);
4629 if (klass->valuetype)
4630 mono_mb_patch_branch (mb, pos1);
4635 case MONO_TYPE_BOOLEAN:
4636 case MONO_TYPE_CHAR:
4645 case MONO_TYPE_ARRAY:
4646 case MONO_TYPE_SZARRAY:
4647 case MONO_TYPE_OBJECT:
4648 case MONO_TYPE_CLASS:
4649 case MONO_TYPE_STRING:
4653 case MONO_TYPE_FNPTR:
4654 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4656 case MONO_TYPE_VALUETYPE:
4657 g_assert (!klass->enumtype);
4658 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4660 case MONO_TYPE_GENERICINST:
4661 if (mono_type_generic_inst_is_valuetype (type)) {
4662 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4664 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4668 g_warning ("type %x not implemented", type->type);
4669 g_assert_not_reached ();
4672 mono_mb_emit_byte (mb, CEE_RET);
4674 res = mono_mb_create_and_cache (cache, klass,
4675 mb, sig, sig->param_count + 16);
4682 * mono_marshal_get_ldflda_wrapper:
4683 * @type: the type of the field
4685 * This method generates a function which can be used to load a field address
4686 * from an object. The generated function has the following signature:
4687 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4690 mono_marshal_get_ldflda_wrapper (MonoType *type)
4692 MonoMethodSignature *sig;
4693 MonoMethodBuilder *mb;
4700 type = mono_type_get_underlying_type (type);
4704 if (type->type == MONO_TYPE_SZARRAY) {
4705 klass = mono_defaults.array_class;
4706 } else if (type->type == MONO_TYPE_VALUETYPE) {
4707 klass = type->data.klass;
4708 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4709 t == MONO_TYPE_CLASS) {
4710 klass = mono_defaults.object_class;
4711 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4712 klass = mono_defaults.int_class;
4713 } else if (t == MONO_TYPE_GENERICINST) {
4714 if (mono_type_generic_inst_is_valuetype (type))
4715 klass = mono_class_from_mono_type (type);
4717 klass = mono_defaults.object_class;
4719 klass = mono_class_from_mono_type (type);
4722 klass = mono_defaults.int_class;
4725 cache = klass->image->ldflda_wrapper_cache;
4726 if ((res = mono_marshal_find_in_cache (cache, klass)))
4729 /* we add the %p pointer value of klass because class names are not unique */
4730 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4731 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4734 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4735 sig->params [0] = &mono_defaults.object_class->byval_arg;
4736 sig->params [1] = &mono_defaults.int_class->byval_arg;
4737 sig->params [2] = &mono_defaults.int_class->byval_arg;
4738 sig->params [3] = &mono_defaults.int_class->byval_arg;
4739 sig->ret = &mono_defaults.int_class->byval_arg;
4741 mono_mb_emit_ldarg (mb, 0);
4742 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4744 /* FIXME: Only throw this if the object is in another appdomain */
4745 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4747 mono_mb_patch_branch (mb, pos0);
4749 mono_mb_emit_ldarg (mb, 0);
4750 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4751 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4752 mono_mb_emit_ldarg (mb, 3);
4753 mono_mb_emit_byte (mb, CEE_ADD);
4755 mono_mb_emit_byte (mb, CEE_RET);
4757 res = mono_mb_create_and_cache (cache, klass,
4758 mb, sig, sig->param_count + 16);
4765 * mono_marshal_get_stfld_remote_wrapper:
4766 * klass: The type of the field
4768 * This function generates a wrapper for calling mono_store_remote_field_new
4769 * with the appropriate signature.
4772 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4774 MonoMethodSignature *sig, *csig;
4775 MonoMethodBuilder *mb;
4780 cache = klass->image->stfld_remote_wrapper_cache;
4781 if ((res = mono_marshal_find_in_cache (cache, klass)))
4784 name = g_strdup_printf ("__mono_store_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
4785 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD_REMOTE);
4788 mb->method->save_lmf = 1;
4790 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4791 sig->params [0] = &mono_defaults.object_class->byval_arg;
4792 sig->params [1] = &mono_defaults.int_class->byval_arg;
4793 sig->params [2] = &mono_defaults.int_class->byval_arg;
4794 sig->params [3] = &klass->byval_arg;
4795 sig->ret = &mono_defaults.void_class->byval_arg;
4797 mono_mb_emit_ldarg (mb, 0);
4798 mono_mb_emit_ldarg (mb, 1);
4799 mono_mb_emit_ldarg (mb, 2);
4800 mono_mb_emit_ldarg (mb, 3);
4802 if (klass->valuetype)
4803 mono_mb_emit_op (mb, CEE_BOX, klass);
4805 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4806 csig->params [0] = &mono_defaults.object_class->byval_arg;
4807 csig->params [1] = &mono_defaults.int_class->byval_arg;
4808 csig->params [2] = &mono_defaults.int_class->byval_arg;
4809 csig->params [3] = &klass->byval_arg;
4810 csig->ret = &mono_defaults.void_class->byval_arg;
4813 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4814 emit_thread_interrupt_checkpoint (mb);
4816 mono_mb_emit_byte (mb, CEE_RET);
4818 res = mono_mb_create_and_cache (cache, klass,
4819 mb, sig, sig->param_count + 16);
4826 * mono_marshal_get_stfld_wrapper:
4827 * @type: the type of the field
4829 * This method generates a function which can be use to store a field with type
4830 * @type. The generated function has the following signature:
4831 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4834 mono_marshal_get_stfld_wrapper (MonoType *type)
4836 MonoMethodSignature *sig;
4837 MonoMethodBuilder *mb;
4844 type = mono_type_get_underlying_type (type);
4848 if (type->type == MONO_TYPE_SZARRAY) {
4849 klass = mono_defaults.array_class;
4850 } else if (type->type == MONO_TYPE_VALUETYPE) {
4851 klass = type->data.klass;
4852 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4853 klass = mono_defaults.object_class;
4854 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4855 klass = mono_defaults.int_class;
4856 } else if (t == MONO_TYPE_GENERICINST) {
4857 if (mono_type_generic_inst_is_valuetype (type))
4858 klass = mono_class_from_mono_type (type);
4860 klass = mono_defaults.object_class;
4862 klass = mono_class_from_mono_type (type);
4865 klass = mono_defaults.int_class;
4868 cache = klass->image->stfld_wrapper_cache;
4869 if ((res = mono_marshal_find_in_cache (cache, klass)))
4872 /* we add the %p pointer value of klass because class names are not unique */
4873 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4874 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4877 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4878 sig->params [0] = &mono_defaults.object_class->byval_arg;
4879 sig->params [1] = &mono_defaults.int_class->byval_arg;
4880 sig->params [2] = &mono_defaults.int_class->byval_arg;
4881 sig->params [3] = &mono_defaults.int_class->byval_arg;
4882 sig->params [4] = &klass->byval_arg;
4883 sig->ret = &mono_defaults.void_class->byval_arg;
4885 mono_mb_emit_ldarg (mb, 0);
4886 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4888 mono_mb_emit_ldarg (mb, 0);
4889 mono_mb_emit_ldarg (mb, 1);
4890 mono_mb_emit_ldarg (mb, 2);
4891 mono_mb_emit_ldarg (mb, 4);
4893 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4895 mono_mb_emit_byte (mb, CEE_RET);
4897 mono_mb_patch_branch (mb, pos);
4899 mono_mb_emit_ldarg (mb, 0);
4900 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4901 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4902 mono_mb_emit_ldarg (mb, 3);
4903 mono_mb_emit_byte (mb, CEE_ADD);
4904 mono_mb_emit_ldarg (mb, 4);
4909 case MONO_TYPE_BOOLEAN:
4910 case MONO_TYPE_CHAR:
4919 case MONO_TYPE_ARRAY:
4920 case MONO_TYPE_SZARRAY:
4921 case MONO_TYPE_OBJECT:
4922 case MONO_TYPE_CLASS:
4923 case MONO_TYPE_STRING:
4927 case MONO_TYPE_FNPTR:
4928 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4930 case MONO_TYPE_VALUETYPE:
4931 g_assert (!klass->enumtype);
4932 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4934 case MONO_TYPE_GENERICINST:
4935 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4938 g_warning ("type %x not implemented", type->type);
4939 g_assert_not_reached ();
4942 mono_mb_emit_byte (mb, CEE_RET);
4944 res = mono_mb_create_and_cache (cache, klass,
4945 mb, sig, sig->param_count + 16);
4952 * generates IL code for the icall wrapper (the generated method
4953 * calls the unmanaged code in func)
4956 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
4958 MonoMethodSignature *csig;
4959 MonoMethodBuilder *mb;
4963 g_assert (sig->pinvoke);
4965 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4967 mb->method->save_lmf = 1;
4969 /* we copy the signature, so that we can modify it */
4972 mono_mb_emit_byte (mb, CEE_LDARG_0);
4974 for (i = 0; i < sig->param_count; i++)
4975 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4977 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4978 emit_thread_interrupt_checkpoint (mb);
4979 mono_mb_emit_byte (mb, CEE_RET);
4981 csig = signature_dup (mono_defaults.corlib, sig);
4983 if (csig->call_convention == MONO_CALL_VARARG)
4984 csig->call_convention = 0;
4986 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4993 MonoMethodBuilder *mb;
4994 MonoMethodSignature *sig;
4995 MonoMethodPInvoke *piinfo;
4996 int *orig_conv_args; /* Locals containing the original values of byref args */
4998 MonoClass *retobj_class;
4999 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5000 MonoImage *image; /* The image to use for looking up custom marshallers */
5001 } EmitMarshalContext;
5004 MARSHAL_ACTION_CONV_IN,
5005 MARSHAL_ACTION_PUSH,
5006 MARSHAL_ACTION_CONV_OUT,
5007 MARSHAL_ACTION_CONV_RESULT,
5008 MARSHAL_ACTION_MANAGED_CONV_IN,
5009 MARSHAL_ACTION_MANAGED_CONV_OUT,
5010 MARSHAL_ACTION_MANAGED_CONV_RESULT
5014 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5015 MonoMarshalSpec *spec,
5016 int conv_arg, MonoType **conv_arg_type,
5017 MarshalAction action)
5021 static MonoClass *ICustomMarshaler = NULL;
5022 static MonoMethod *cleanup_native, *cleanup_managed;
5023 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5024 MonoMethod *get_instance;
5025 MonoMethodBuilder *mb = m->mb;
5026 char *exception_msg = NULL;
5030 if (!ICustomMarshaler) {
5031 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5032 g_assert (ICustomMarshaler);
5034 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5035 g_assert (cleanup_native);
5036 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5037 g_assert (cleanup_managed);
5038 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5039 g_assert (marshal_managed_to_native);
5040 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5041 g_assert (marshal_native_to_managed);
5044 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5045 g_assert (mtype != NULL);
5046 mklass = mono_class_from_mono_type (mtype);
5047 g_assert (mklass != NULL);
5049 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5050 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5052 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5054 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5055 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5056 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5057 (get_sig->params [0]->type != MONO_TYPE_STRING))
5058 get_instance = NULL;
5062 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);
5064 /* Throw exception and emit compensation code if neccesary */
5065 if (exception_msg) {
5067 case MARSHAL_ACTION_CONV_IN:
5068 case MARSHAL_ACTION_CONV_RESULT:
5069 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5070 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5071 mono_mb_emit_byte (mb, CEE_POP);
5073 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5074 g_free (exception_msg);
5077 case MARSHAL_ACTION_PUSH:
5078 mono_mb_emit_byte (mb, CEE_LDNULL);
5086 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5087 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5090 case MARSHAL_ACTION_CONV_IN:
5092 case MONO_TYPE_CLASS:
5093 case MONO_TYPE_OBJECT:
5094 case MONO_TYPE_STRING:
5095 case MONO_TYPE_ARRAY:
5096 case MONO_TYPE_SZARRAY:
5097 case MONO_TYPE_VALUETYPE:
5101 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5102 g_assert_not_reached ();
5106 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5108 mono_mb_emit_byte (mb, CEE_LDNULL);
5109 mono_mb_emit_stloc (mb, conv_arg);
5111 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5114 /* Check for null */
5115 mono_mb_emit_ldarg (mb, argnum);
5117 mono_mb_emit_byte (mb, CEE_LDIND_I);
5118 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5120 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5122 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5124 mono_mb_emit_ldarg (mb, argnum);
5126 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5128 if (t->type == MONO_TYPE_VALUETYPE) {
5130 * Since we can't determine the type of the argument, we
5131 * will assume the unmanaged function takes a pointer.
5133 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5135 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5138 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5139 mono_mb_emit_stloc (mb, conv_arg);
5141 mono_mb_patch_branch (mb, pos2);
5144 case MARSHAL_ACTION_CONV_OUT:
5145 /* Check for null */
5146 mono_mb_emit_ldloc (mb, conv_arg);
5147 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5150 mono_mb_emit_ldarg (mb, argnum);
5152 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5154 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5156 mono_mb_emit_ldloc (mb, conv_arg);
5157 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5158 mono_mb_emit_byte (mb, CEE_STIND_REF);
5161 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5163 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5165 mono_mb_emit_ldloc (mb, conv_arg);
5167 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5169 mono_mb_patch_branch (mb, pos2);
5172 case MARSHAL_ACTION_PUSH:
5174 mono_mb_emit_ldloc_addr (mb, conv_arg);
5176 mono_mb_emit_ldloc (mb, conv_arg);
5179 case MARSHAL_ACTION_CONV_RESULT:
5180 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5182 mono_mb_emit_stloc (mb, 3);
5184 mono_mb_emit_ldloc (mb, 3);
5185 mono_mb_emit_stloc (mb, loc1);
5187 /* Check for null */
5188 mono_mb_emit_ldloc (mb, 3);
5189 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5191 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5193 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5194 mono_mb_emit_byte (mb, CEE_DUP);
5196 mono_mb_emit_ldloc (mb, 3);
5197 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5198 mono_mb_emit_stloc (mb, 3);
5200 mono_mb_emit_ldloc (mb, loc1);
5201 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5203 mono_mb_patch_branch (mb, pos2);
5206 case MARSHAL_ACTION_MANAGED_CONV_IN:
5212 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5214 mono_mb_emit_byte (mb, CEE_LDNULL);
5215 mono_mb_emit_stloc (mb, conv_arg);
5217 /* Check for null */
5218 mono_mb_emit_ldarg (mb, argnum);
5219 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5221 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5222 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5224 mono_mb_emit_ldarg (mb, argnum);
5226 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5227 mono_mb_emit_stloc (mb, conv_arg);
5229 mono_mb_patch_branch (mb, pos2);
5232 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5233 g_assert (!t->byref);
5235 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5237 mono_mb_emit_stloc (mb, 3);
5239 mono_mb_emit_ldloc (mb, 3);
5240 mono_mb_emit_stloc (mb, loc1);
5242 /* Check for null */
5243 mono_mb_emit_ldloc (mb, 3);
5244 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5246 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5247 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5248 mono_mb_emit_byte (mb, CEE_DUP);
5250 mono_mb_emit_ldloc (mb, 3);
5251 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5252 mono_mb_emit_stloc (mb, 3);
5254 mono_mb_emit_ldloc (mb, loc1);
5255 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5257 mono_mb_patch_branch (mb, pos2);
5260 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5261 g_assert (!t->byref);
5263 /* Check for null */
5264 mono_mb_emit_ldloc (mb, conv_arg);
5265 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5267 /* Call CleanUpManagedData */
5268 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5270 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5272 mono_mb_emit_ldloc (mb, conv_arg);
5273 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5275 mono_mb_patch_branch (mb, pos2);
5279 g_assert_not_reached ();
5286 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5287 MonoMarshalSpec *spec,
5288 int conv_arg, MonoType **conv_arg_type,
5289 MarshalAction action)
5291 MonoMethodBuilder *mb = m->mb;
5294 case MARSHAL_ACTION_CONV_IN: {
5295 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5297 g_assert (t->type == MONO_TYPE_OBJECT);
5298 g_assert (!t->byref);
5300 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5301 mono_mb_emit_ldarg (mb, argnum);
5302 mono_mb_emit_icon (mb, encoding);
5303 mono_mb_emit_icon (mb, t->attrs);
5304 mono_mb_emit_icall (mb, mono_marshal_asany);
5305 mono_mb_emit_stloc (mb, conv_arg);
5309 case MARSHAL_ACTION_PUSH:
5310 mono_mb_emit_ldloc (mb, conv_arg);
5313 case MARSHAL_ACTION_CONV_OUT: {
5314 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5316 mono_mb_emit_ldarg (mb, argnum);
5317 mono_mb_emit_ldloc (mb, conv_arg);
5318 mono_mb_emit_icon (mb, encoding);
5319 mono_mb_emit_icon (mb, t->attrs);
5320 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5325 g_assert_not_reached ();
5332 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5333 MonoMarshalSpec *spec,
5334 int conv_arg, MonoType **conv_arg_type,
5335 MarshalAction action)
5337 MonoMethodBuilder *mb = m->mb;
5341 klass = t->data.klass;
5344 case MARSHAL_ACTION_CONV_IN:
5345 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5346 klass->blittable || klass->enumtype)
5349 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5351 /* store the address of the source into local variable 0 */
5353 mono_mb_emit_ldarg (mb, argnum);
5355 mono_mb_emit_ldarg_addr (mb, argnum);
5357 mono_mb_emit_stloc (mb, 0);
5359 /* allocate space for the native struct and
5360 * store the address into local variable 1 (dest) */
5361 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5362 mono_mb_emit_byte (mb, CEE_PREFIX1);
5363 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5364 mono_mb_emit_stloc (mb, conv_arg);
5367 mono_mb_emit_ldloc (mb, 0);
5368 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5371 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5373 mono_mb_emit_ldloc (mb, conv_arg);
5374 mono_mb_emit_stloc (mb, 1);
5376 /* emit valuetype conversion code */
5377 emit_struct_conv (mb, klass, FALSE);
5381 mono_mb_patch_branch (mb, pos);
5384 case MARSHAL_ACTION_PUSH:
5385 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5387 g_assert (!t->byref);
5389 /* Have to change the signature since the vtype is passed byref */
5390 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5392 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5393 klass->blittable || klass->enumtype)
5394 mono_mb_emit_ldarg_addr (mb, argnum);
5396 mono_mb_emit_ldloc (mb, conv_arg);
5400 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5401 klass->blittable || klass->enumtype) {
5402 mono_mb_emit_ldarg (mb, argnum);
5405 mono_mb_emit_ldloc (mb, conv_arg);
5407 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5408 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5412 case MARSHAL_ACTION_CONV_OUT:
5413 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5414 klass->blittable || klass->enumtype)
5418 /* dst = argument */
5419 mono_mb_emit_ldarg (mb, argnum);
5420 mono_mb_emit_stloc (mb, 1);
5422 mono_mb_emit_ldloc (mb, 1);
5423 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5425 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5426 /* src = tmp_locals [i] */
5427 mono_mb_emit_ldloc (mb, conv_arg);
5428 mono_mb_emit_stloc (mb, 0);
5430 /* emit valuetype conversion code */
5431 emit_struct_conv (mb, klass, TRUE);
5435 emit_struct_free (mb, klass, conv_arg);
5438 mono_mb_patch_branch (mb, pos);
5441 case MARSHAL_ACTION_CONV_RESULT:
5442 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5444 mono_mb_emit_stloc (mb, 3);
5447 /* load pointer to returned value type */
5448 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5449 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5450 /* store the address of the source into local variable 0 */
5451 mono_mb_emit_stloc (mb, 0);
5453 mono_mb_emit_ldloc_addr (mb, 3);
5454 mono_mb_emit_stloc (mb, 1);
5456 /* emit valuetype conversion code */
5457 emit_struct_conv (mb, klass, TRUE);
5460 case MARSHAL_ACTION_MANAGED_CONV_IN:
5461 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5462 klass->blittable || klass->enumtype) {
5467 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5469 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5473 mono_mb_emit_ldarg (mb, argnum);
5475 mono_mb_emit_ldarg_addr (mb, argnum);
5476 mono_mb_emit_stloc (mb, 0);
5479 mono_mb_emit_ldloc (mb, 0);
5480 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5483 mono_mb_emit_ldloc_addr (mb, conv_arg);
5484 mono_mb_emit_stloc (mb, 1);
5486 /* emit valuetype conversion code */
5487 emit_struct_conv (mb, klass, TRUE);
5490 mono_mb_patch_branch (mb, pos);
5493 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5494 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5495 klass->blittable || klass->enumtype) {
5499 /* Check for null */
5500 mono_mb_emit_ldarg (mb, argnum);
5501 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5504 mono_mb_emit_ldloc_addr (mb, conv_arg);
5505 mono_mb_emit_stloc (mb, 0);
5508 mono_mb_emit_ldarg (mb, argnum);
5509 mono_mb_emit_stloc (mb, 1);
5511 /* emit valuetype conversion code */
5512 emit_struct_conv (mb, klass, FALSE);
5514 mono_mb_patch_branch (mb, pos2);
5517 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5518 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5519 klass->blittable || klass->enumtype) {
5520 mono_mb_emit_stloc (mb, 3);
5525 /* load pointer to returned value type */
5526 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5527 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5529 /* store the address of the source into local variable 0 */
5530 mono_mb_emit_stloc (mb, 0);
5531 /* allocate space for the native struct and
5532 * store the address into dst_ptr */
5533 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5534 m->retobj_class = klass;
5535 g_assert (m->retobj_var);
5536 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5537 mono_mb_emit_byte (mb, CEE_CONV_I);
5538 mono_mb_emit_icall (mb, mono_marshal_alloc);
5539 mono_mb_emit_stloc (mb, 1);
5540 mono_mb_emit_ldloc (mb, 1);
5541 mono_mb_emit_stloc (mb, m->retobj_var);
5543 /* emit valuetype conversion code */
5544 emit_struct_conv (mb, klass, FALSE);
5548 g_assert_not_reached ();
5555 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5556 MonoMarshalSpec *spec,
5557 int conv_arg, MonoType **conv_arg_type,
5558 MarshalAction action)
5560 MonoMethodBuilder *mb = m->mb;
5561 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5562 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5566 case MARSHAL_ACTION_CONV_IN:
5567 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5568 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5571 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5574 mono_mb_emit_ldarg (mb, argnum);
5575 mono_mb_emit_byte (mb, CEE_LDIND_I);
5577 mono_mb_emit_ldarg (mb, argnum);
5581 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5582 MonoException *exc = mono_get_exception_not_implemented (msg);
5585 mono_raise_exception (exc);
5588 mono_mb_emit_icall (mb, conv_to_icall (conv));
5590 mono_mb_emit_stloc (mb, conv_arg);
5593 case MARSHAL_ACTION_CONV_OUT:
5594 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5595 mono_mb_emit_ldarg (mb, argnum);
5596 mono_mb_emit_ldloc (mb, conv_arg);
5597 if (conv == MONO_MARSHAL_CONV_STR_BSTR) {
5598 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_BSTR_STR));
5599 // BSTRs always need freed
5600 mono_mb_emit_ldloc (mb, conv_arg);
5601 mono_mb_emit_icall (mb, mono_free_bstr);
5604 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
5605 mono_mb_emit_byte (mb, CEE_STIND_REF);
5607 if (mono_marshal_need_free (t, m->piinfo, spec)) {
5608 mono_mb_emit_ldloc (mb, conv_arg);
5609 if (conv == MONO_MARSHAL_CONV_STR_BSTR)
5610 mono_mb_emit_icall (mb, mono_free_bstr);
5612 mono_mb_emit_icall (mb, mono_marshal_free);
5617 case MARSHAL_ACTION_PUSH:
5619 mono_mb_emit_ldloc_addr (mb, conv_arg);
5621 mono_mb_emit_ldloc (mb, conv_arg);
5624 case MARSHAL_ACTION_CONV_RESULT:
5625 mono_mb_emit_stloc (mb, 0);
5627 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5629 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5630 mono_mb_emit_exception_marshal_directive (mb, msg);
5634 mono_mb_emit_ldloc (mb, 0);
5635 mono_mb_emit_icall (mb, conv_to_icall (conv));
5636 mono_mb_emit_stloc (mb, 3);
5638 /* free the string */
5639 mono_mb_emit_ldloc (mb, 0);
5640 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5641 mono_mb_emit_icall (mb, mono_free_bstr);
5643 mono_mb_emit_icall (mb, g_free);
5646 case MARSHAL_ACTION_MANAGED_CONV_IN:
5652 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5653 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5655 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5657 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5658 mono_mb_emit_exception_marshal_directive (mb, msg);
5662 mono_mb_emit_ldarg (mb, argnum);
5663 mono_mb_emit_icall (mb, conv_to_icall (conv));
5664 mono_mb_emit_stloc (mb, conv_arg);
5667 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5668 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
5669 mono_mb_emit_stloc (mb, 3);
5673 g_assert_not_reached ();
5680 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5681 MonoMarshalSpec *spec,
5682 int conv_arg, MonoType **conv_arg_type,
5683 MarshalAction action)
5685 MonoMethodBuilder *mb = m->mb;
5686 MonoClass *klass = t->data.klass;
5689 if (mono_class_from_mono_type (t) == mono_defaults.object_class &&
5690 (!spec || (spec && spec->native != MONO_NATIVE_STRUCT)) &&
5691 (!spec || (spec && (spec->native != MONO_NATIVE_IUNKNOWN &&
5692 spec->native != MONO_NATIVE_IDISPATCH &&
5693 spec->native != MONO_NATIVE_INTERFACE)))) {
5694 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
5698 case MARSHAL_ACTION_CONV_IN:
5699 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5700 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5702 m->orig_conv_args [argnum] = 0;
5704 if (spec && spec->native == MONO_NATIVE_STRUCT)
5706 static MonoMethod *get_native_variant_for_object = NULL;
5708 if (!get_native_variant_for_object)
5709 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5711 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
5713 local_variant = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
5714 conv_arg = local_variant;
5715 mono_mb_emit_ldarg (mb, argnum);
5717 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5718 mono_mb_emit_ldloc_addr (mb, local_variant);
5719 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5721 else if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
5722 spec->native == MONO_NATIVE_IDISPATCH ||
5723 spec->native == MONO_NATIVE_INTERFACE)) {
5724 mono_mb_emit_ptr (mb, 0);
5725 mono_mb_emit_stloc (mb, conv_arg);
5728 /* we dont need any conversions for out parameters */
5729 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5732 char *msg = g_strdup_printf ("non out object references are no implemented");
5733 MonoException *exc = mono_get_exception_not_implemented (msg);
5736 mono_raise_exception (exc);
5740 guint32 pos_failed = 0;
5741 mono_mb_emit_ldarg (mb, argnum);
5742 // if null just break, conv arg was already inited to 0
5743 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
5745 mono_mb_emit_ldarg (mb, argnum);
5746 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5747 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5749 /* load the RCW from the ComInteropProxy*/
5750 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
5751 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5753 if (klass && klass != mono_defaults.object_class) {
5754 static MonoMethod* GetInterface = NULL;
5757 GetInterface = mono_class_get_method_from_name (mono_defaults.com_object_class, "GetInterface", 1);
5758 mono_mb_emit_ptr (mb, t);
5759 mono_mb_emit_icall (mb, type_from_handle);
5760 mono_mb_emit_managed_call (mb, GetInterface, NULL);
5762 else if (spec->native == MONO_NATIVE_IUNKNOWN) {
5763 static MonoProperty* iunknown = NULL;
5766 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
5767 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
5769 else if (spec->native == MONO_NATIVE_IDISPATCH) {
5770 static MonoProperty* idispatch = NULL;
5773 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
5774 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
5778 mono_mb_emit_stloc (mb, conv_arg);
5781 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
5784 else if (klass->delegate) {
5785 g_assert (!t->byref);
5786 mono_mb_emit_ldarg (mb, argnum);
5787 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5788 mono_mb_emit_stloc (mb, conv_arg);
5789 } else if (klass == mono_defaults.stringbuilder_class) {
5790 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5791 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5793 g_assert (!t->byref);
5794 mono_mb_emit_ldarg (mb, argnum);
5797 mono_mb_emit_icall (mb, conv_to_icall (conv));
5799 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5800 MonoException *exc = mono_get_exception_not_implemented (msg);
5803 mono_raise_exception (exc);
5806 mono_mb_emit_stloc (mb, conv_arg);
5807 } else if (klass->blittable) {
5808 mono_mb_emit_byte (mb, CEE_LDNULL);
5809 mono_mb_emit_stloc (mb, conv_arg);
5811 mono_mb_emit_ldarg (mb, argnum);
5812 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5814 mono_mb_emit_ldarg (mb, argnum);
5815 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5816 mono_mb_emit_stloc (mb, conv_arg);
5818 mono_mb_patch_branch (mb, pos);
5821 mono_mb_emit_byte (mb, CEE_LDNULL);
5822 mono_mb_emit_stloc (mb, conv_arg);
5825 /* we dont need any conversions for out parameters */
5826 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5829 mono_mb_emit_ldarg (mb, argnum);
5830 mono_mb_emit_byte (mb, CEE_LDIND_I);
5833 mono_mb_emit_ldarg (mb, argnum);
5834 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5835 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5838 /* store the address of the source into local variable 0 */
5839 mono_mb_emit_stloc (mb, 0);
5840 mono_mb_emit_ldloc (mb, 0);
5841 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5843 /* allocate space for the native struct and store the address */
5844 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5845 mono_mb_emit_byte (mb, CEE_PREFIX1);
5846 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5847 mono_mb_emit_stloc (mb, conv_arg);
5850 /* Need to store the original buffer so we can free it later */
5851 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5852 mono_mb_emit_ldloc (mb, conv_arg);
5853 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5856 /* set the src_ptr */
5857 mono_mb_emit_ldloc (mb, 0);
5858 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5859 mono_mb_emit_stloc (mb, 0);
5862 mono_mb_emit_ldloc (mb, conv_arg);
5863 mono_mb_emit_stloc (mb, 1);
5865 /* emit valuetype conversion code */
5866 emit_struct_conv (mb, klass, FALSE);
5868 mono_mb_patch_branch (mb, pos);
5872 case MARSHAL_ACTION_CONV_OUT:
5873 if (spec && spec->native == MONO_NATIVE_STRUCT) {
5874 static MonoMethod *variant_clear = NULL;
5875 static MonoMethod *get_object_for_native_variant = NULL;
5877 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
5878 if (!get_object_for_native_variant)
5879 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5881 mono_mb_emit_ldarg (mb, argnum);
5882 mono_mb_emit_ldloc_addr (mb, conv_arg);
5883 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5884 mono_mb_emit_byte (mb, CEE_STIND_REF);
5887 mono_mb_emit_ldloc_addr (mb, conv_arg);
5888 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5892 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
5893 spec->native == MONO_NATIVE_IDISPATCH ||
5894 spec->native == MONO_NATIVE_INTERFACE)) {
5895 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5896 static MonoClass* com_interop_proxy_class = NULL;
5897 static MonoMethod* com_interop_proxy_get_proxy = NULL;
5898 static MonoMethod* get_transparent_proxy = NULL;
5900 guint32 pos_failed = 0;
5902 mono_mb_emit_ldarg (mb, argnum);
5903 mono_mb_emit_byte (mb, CEE_LDNULL);
5904 mono_mb_emit_byte (mb, CEE_STIND_REF);
5906 mono_mb_emit_ldloc (mb, conv_arg);
5907 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
5909 if (!com_interop_proxy_class)
5910 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
5911 if (!com_interop_proxy_get_proxy)
5912 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
5913 if (!get_transparent_proxy)
5914 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
5916 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
5918 mono_mb_emit_ldloc (mb, conv_arg);
5919 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
5920 mono_mb_emit_icall (mb, type_from_handle);
5921 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
5922 mono_mb_emit_stloc (mb, real_proxy);
5925 mono_mb_emit_ldarg (mb, argnum);
5926 mono_mb_emit_ldloc (mb, real_proxy);
5927 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
5928 if (klass && klass != mono_defaults.object_class)
5929 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
5930 mono_mb_emit_byte (mb, CEE_STIND_REF);
5933 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
5937 if (klass == mono_defaults.stringbuilder_class) {
5939 MonoMarshalNative encoding;
5940 MonoMarshalConv conv;
5942 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5943 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5945 g_assert (!t->byref);
5946 g_assert (encoding != -1);
5948 mono_mb_emit_ldarg (mb, argnum);
5949 mono_mb_emit_ldloc (mb, conv_arg);
5951 mono_mb_emit_icall (mb, conv_to_icall (conv));
5954 mono_mb_emit_ldloc (mb, conv_arg);
5955 mono_mb_emit_icall (mb, mono_marshal_free);
5960 if (klass->delegate)
5963 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5964 /* allocate a new object */
5965 mono_mb_emit_ldarg (mb, argnum);
5966 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5967 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
5968 mono_mb_emit_byte (mb, CEE_STIND_REF);
5971 /* dst = *argument */
5972 mono_mb_emit_ldarg (mb, argnum);
5975 mono_mb_emit_byte (mb, CEE_LDIND_I);
5977 mono_mb_emit_stloc (mb, 1);
5979 mono_mb_emit_ldloc (mb, 1);
5980 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5982 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5983 mono_mb_emit_ldloc (mb, 1);
5984 mono_mb_emit_icon (mb, sizeof (MonoObject));
5985 mono_mb_emit_byte (mb, CEE_ADD);
5986 mono_mb_emit_stloc (mb, 1);
5988 /* src = tmp_locals [i] */
5989 mono_mb_emit_ldloc (mb, conv_arg);
5990 mono_mb_emit_stloc (mb, 0);
5992 /* emit valuetype conversion code */
5993 emit_struct_conv (mb, t->data.klass, TRUE);
5995 /* Free the structure returned by the native code */
5996 emit_struct_free (mb, klass, conv_arg);
5998 if (m->orig_conv_args [argnum]) {
6000 * If the native function changed the pointer, then free
6001 * the original structure plus the new pointer.
6003 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6004 mono_mb_emit_ldloc (mb, conv_arg);
6005 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6007 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6008 g_assert (m->orig_conv_args [argnum]);
6010 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6013 mono_mb_emit_ldloc (mb, conv_arg);
6014 mono_mb_emit_icall (mb, g_free);
6016 mono_mb_patch_branch (mb, pos2);
6020 /* Free the original structure passed to native code */
6021 emit_struct_free (mb, klass, conv_arg);
6023 mono_mb_patch_branch (mb, pos);
6026 case MARSHAL_ACTION_PUSH:
6028 mono_mb_emit_ldloc_addr (mb, conv_arg);
6030 mono_mb_emit_ldloc (mb, conv_arg);
6033 case MARSHAL_ACTION_CONV_RESULT:
6034 if (klass->delegate) {
6035 g_assert (!t->byref);
6036 mono_mb_emit_stloc (mb, 0);
6037 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6038 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6039 mono_mb_emit_ldloc (mb, 0);
6040 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6041 mono_mb_emit_stloc (mb, 3);
6042 } else if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6043 spec->native == MONO_NATIVE_IDISPATCH ||
6044 spec->native == MONO_NATIVE_INTERFACE)) {
6045 char *msg = g_strdup ("Marshalling of COM Objects is not yet implemented.");
6046 mono_mb_emit_exception_marshal_directive (mb, msg);
6049 mono_mb_emit_stloc (mb, 0);
6051 /* Make a copy since emit_conv modifies local 0 */
6052 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6053 mono_mb_emit_ldloc (mb, 0);
6054 mono_mb_emit_stloc (mb, loc);
6056 mono_mb_emit_byte (mb, CEE_LDNULL);
6057 mono_mb_emit_stloc (mb, 3);
6059 mono_mb_emit_ldloc (mb, 0);
6060 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6062 /* allocate result object */
6064 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6065 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6066 mono_mb_emit_stloc (mb, 3);
6070 mono_mb_emit_ldloc (mb, 3);
6071 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6072 mono_mb_emit_stloc (mb, 1);
6074 /* emit conversion code */
6075 emit_struct_conv (mb, klass, TRUE);
6077 emit_struct_free (mb, klass, loc);
6079 /* Free the pointer allocated by unmanaged code */
6080 mono_mb_emit_ldloc (mb, loc);
6081 mono_mb_emit_icall (mb, g_free);
6082 mono_mb_patch_branch (mb, pos);
6086 case MARSHAL_ACTION_MANAGED_CONV_IN:
6087 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6089 if (klass->delegate) {
6090 g_assert (!t->byref);
6091 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6092 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6093 mono_mb_emit_ldarg (mb, argnum);
6094 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6095 mono_mb_emit_stloc (mb, conv_arg);
6099 /* The class can not have an automatic layout */
6100 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6101 mono_mb_emit_auto_layout_exception (mb, klass);
6105 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6106 mono_mb_emit_byte (mb, CEE_LDNULL);
6107 mono_mb_emit_stloc (mb, conv_arg);
6112 mono_mb_emit_ldarg (mb, argnum);
6116 /* Check for NULL and raise an exception */
6117 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6119 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6121 mono_mb_patch_branch (mb, pos2);
6122 mono_mb_emit_ldarg (mb, argnum);
6123 mono_mb_emit_byte (mb, CEE_LDIND_I);
6126 mono_mb_emit_stloc (mb, 0);
6128 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6129 mono_mb_emit_stloc (mb, conv_arg);
6131 mono_mb_emit_ldloc (mb, 0);
6132 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6134 /* Create and set dst */
6135 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6136 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6137 mono_mb_emit_stloc (mb, conv_arg);
6138 mono_mb_emit_ldloc (mb, conv_arg);
6139 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6140 mono_mb_emit_stloc (mb, 1);
6142 /* emit valuetype conversion code */
6143 emit_struct_conv (mb, klass, TRUE);
6145 mono_mb_patch_branch (mb, pos);
6148 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6150 /* Check for null */
6151 mono_mb_emit_ldloc (mb, conv_arg);
6152 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6153 mono_mb_emit_ldarg (mb, argnum);
6154 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6155 mono_mb_emit_byte (mb, CEE_STIND_REF);
6156 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6158 mono_mb_patch_branch (mb, pos);
6161 mono_mb_emit_ldloc (mb, conv_arg);
6162 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6163 mono_mb_emit_stloc (mb, 0);
6165 /* Allocate and set dest */
6166 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6167 mono_mb_emit_byte (mb, CEE_CONV_I);
6168 mono_mb_emit_icall (mb, mono_marshal_alloc);
6169 mono_mb_emit_stloc (mb, 1);
6171 /* Update argument pointer */
6172 mono_mb_emit_ldarg (mb, argnum);
6173 mono_mb_emit_ldloc (mb, 1);
6174 mono_mb_emit_byte (mb, CEE_STIND_I);
6176 /* emit valuetype conversion code */
6177 emit_struct_conv (mb, klass, FALSE);
6179 mono_mb_patch_branch (mb, pos2);
6181 /* byval [Out] marshalling */
6183 /* FIXME: Handle null */
6186 mono_mb_emit_ldloc (mb, conv_arg);
6187 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6188 mono_mb_emit_stloc (mb, 0);
6191 mono_mb_emit_ldarg (mb, argnum);
6192 mono_mb_emit_stloc (mb, 1);
6194 /* emit valuetype conversion code */
6195 emit_struct_conv (mb, klass, FALSE);
6199 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6200 if (klass->delegate) {
6201 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6202 mono_mb_emit_stloc (mb, 3);
6206 /* The class can not have an automatic layout */
6207 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6208 mono_mb_emit_auto_layout_exception (mb, klass);
6212 mono_mb_emit_stloc (mb, 0);
6213 /* Check for null */
6214 mono_mb_emit_ldloc (mb, 0);
6215 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6216 mono_mb_emit_byte (mb, CEE_LDNULL);
6217 mono_mb_emit_stloc (mb, 3);
6218 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6220 mono_mb_patch_branch (mb, pos);
6223 mono_mb_emit_ldloc (mb, 0);
6224 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6225 mono_mb_emit_stloc (mb, 0);
6227 /* Allocate and set dest */
6228 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6229 mono_mb_emit_byte (mb, CEE_CONV_I);
6230 mono_mb_emit_icall (mb, mono_marshal_alloc);
6231 mono_mb_emit_byte (mb, CEE_DUP);
6232 mono_mb_emit_stloc (mb, 1);
6233 mono_mb_emit_stloc (mb, 3);
6235 emit_struct_conv (mb, klass, FALSE);
6237 mono_mb_patch_branch (mb, pos2);
6241 g_assert_not_reached ();
6248 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6249 MonoMarshalSpec *spec,
6250 int conv_arg, MonoType **conv_arg_type,
6251 MarshalAction action)
6253 MonoMethodBuilder *mb = m->mb;
6254 MonoClass *klass = mono_class_from_mono_type (t);
6255 gboolean need_convert, need_free;
6256 MonoMarshalNative encoding;
6258 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6261 case MARSHAL_ACTION_CONV_IN:
6262 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6263 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6265 if (klass->element_class->blittable) {
6266 mono_mb_emit_ldarg (mb, argnum);
6268 mono_mb_emit_byte (mb, CEE_LDIND_I);
6269 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6270 mono_mb_emit_stloc (mb, conv_arg);
6273 guint32 label1, label2, label3;
6274 int index_var, src_var, dest_ptr, esize;
6275 MonoMarshalConv conv;
6276 gboolean is_string = FALSE;
6278 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6280 eklass = klass->element_class;
6282 if (eklass == mono_defaults.string_class) {
6284 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6286 else if (eklass == mono_defaults.stringbuilder_class) {
6288 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6293 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6294 mono_mb_emit_ldarg (mb, argnum);
6296 mono_mb_emit_byte (mb, CEE_LDIND_I);
6297 mono_mb_emit_stloc (mb, src_var);
6300 mono_mb_emit_ldloc (mb, src_var);
6301 mono_mb_emit_stloc (mb, conv_arg);
6302 mono_mb_emit_ldloc (mb, src_var);
6303 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6307 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6308 MonoException *exc = mono_get_exception_not_implemented (msg);
6311 mono_raise_exception (exc);
6316 esize = sizeof (gpointer);
6318 esize = mono_class_native_size (eklass, NULL);
6320 /* allocate space for the native struct and store the address */
6321 mono_mb_emit_icon (mb, esize);
6322 mono_mb_emit_ldloc (mb, src_var);
6323 mono_mb_emit_byte (mb, CEE_LDLEN);
6325 if (eklass == mono_defaults.string_class) {
6326 /* Make the array bigger for the terminating null */
6327 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6328 mono_mb_emit_byte (mb, CEE_ADD);
6330 mono_mb_emit_byte (mb, CEE_MUL);
6331 mono_mb_emit_byte (mb, CEE_PREFIX1);
6332 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6333 mono_mb_emit_stloc (mb, conv_arg);
6335 mono_mb_emit_ldloc (mb, conv_arg);
6336 mono_mb_emit_stloc (mb, dest_ptr);
6338 /* Emit marshalling loop */
6339 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6340 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6341 mono_mb_emit_stloc (mb, index_var);
6343 mono_mb_emit_ldloc (mb, index_var);
6344 mono_mb_emit_ldloc (mb, src_var);
6345 mono_mb_emit_byte (mb, CEE_LDLEN);
6346 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6348 /* Emit marshalling code */
6351 mono_mb_emit_ldloc (mb, dest_ptr);
6352 mono_mb_emit_ldloc (mb, src_var);
6353 mono_mb_emit_ldloc (mb, index_var);
6354 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6355 mono_mb_emit_icall (mb, conv_to_icall (conv));
6356 mono_mb_emit_byte (mb, CEE_STIND_I);
6358 /* set the src_ptr */
6359 mono_mb_emit_ldloc (mb, src_var);
6360 mono_mb_emit_ldloc (mb, index_var);
6361 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6362 mono_mb_emit_stloc (mb, 0);
6365 mono_mb_emit_ldloc (mb, dest_ptr);
6366 mono_mb_emit_stloc (mb, 1);
6368 /* emit valuetype conversion code */
6369 emit_struct_conv (mb, eklass, FALSE);
6372 mono_mb_emit_add_to_local (mb, index_var, 1);
6373 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6375 mono_mb_emit_byte (mb, CEE_BR);
6376 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6378 mono_mb_patch_branch (mb, label3);
6380 if (eklass == mono_defaults.string_class) {
6381 /* Null terminate */
6382 mono_mb_emit_ldloc (mb, dest_ptr);
6383 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6384 mono_mb_emit_byte (mb, CEE_STIND_REF);
6387 mono_mb_patch_branch (mb, label1);
6392 case MARSHAL_ACTION_CONV_OUT:
6393 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6394 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);
6395 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6398 if (need_convert || need_free) {
6399 /* FIXME: Optimize blittable case */
6401 guint32 label1, label2, label3;
6402 int index_var, src_ptr, loc, esize;
6404 eklass = klass->element_class;
6405 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6406 esize = sizeof (gpointer);
6408 esize = mono_class_native_size (eklass, NULL);
6409 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6410 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6413 mono_mb_emit_ldarg (mb, argnum);
6415 mono_mb_emit_byte (mb, CEE_LDIND_I);
6416 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6418 mono_mb_emit_ldloc (mb, conv_arg);
6419 mono_mb_emit_stloc (mb, src_ptr);
6421 /* Emit marshalling loop */
6422 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6423 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6424 mono_mb_emit_stloc (mb, index_var);
6426 mono_mb_emit_ldloc (mb, index_var);
6427 mono_mb_emit_ldarg (mb, argnum);
6429 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6430 mono_mb_emit_byte (mb, CEE_LDLEN);
6431 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6433 /* Emit marshalling code */
6435 if (eklass == mono_defaults.stringbuilder_class) {
6436 gboolean need_free2;
6437 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6439 g_assert (conv != -1);
6442 mono_mb_emit_ldarg (mb, argnum);
6444 mono_mb_emit_byte (mb, CEE_LDIND_I);
6445 mono_mb_emit_ldloc (mb, index_var);
6446 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6449 mono_mb_emit_ldloc (mb, src_ptr);
6450 mono_mb_emit_byte (mb, CEE_LDIND_I);
6452 mono_mb_emit_icall (mb, conv_to_icall (conv));
6456 mono_mb_emit_ldloc (mb, src_ptr);
6457 mono_mb_emit_byte (mb, CEE_LDIND_I);
6459 mono_mb_emit_icall (mb, mono_marshal_free);
6462 else if (eklass == mono_defaults.string_class) {
6465 mono_mb_emit_ldloc (mb, src_ptr);
6466 mono_mb_emit_byte (mb, CEE_LDIND_I);
6468 mono_mb_emit_icall (mb, mono_marshal_free);
6473 /* set the src_ptr */
6474 mono_mb_emit_ldloc (mb, src_ptr);
6475 mono_mb_emit_stloc (mb, 0);
6478 mono_mb_emit_ldarg (mb, argnum);
6480 mono_mb_emit_byte (mb, CEE_LDIND_I);
6481 mono_mb_emit_ldloc (mb, index_var);
6482 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6483 mono_mb_emit_stloc (mb, 1);
6485 /* emit valuetype conversion code */
6486 emit_struct_conv (mb, eklass, TRUE);
6490 mono_mb_emit_ldloc (mb, src_ptr);
6491 mono_mb_emit_stloc (mb, loc);
6492 mono_mb_emit_ldloc (mb, loc);
6494 emit_struct_free (mb, eklass, loc);
6498 mono_mb_emit_add_to_local (mb, index_var, 1);
6499 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6501 mono_mb_emit_byte (mb, CEE_BR);
6502 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6504 mono_mb_patch_branch (mb, label1);
6505 mono_mb_patch_branch (mb, label3);
6509 case MARSHAL_ACTION_PUSH:
6511 mono_mb_emit_ldloc_addr (mb, conv_arg);
6513 mono_mb_emit_ldloc (mb, conv_arg);
6516 case MARSHAL_ACTION_CONV_RESULT:
6517 /* fixme: we need conversions here */
6518 mono_mb_emit_stloc (mb, 3);
6521 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6523 guint32 label1, label2, label3;
6524 int index_var, src_ptr, loc, esize, param_num, num_elem;
6525 MonoMarshalConv conv;
6526 gboolean is_string = FALSE;
6528 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6529 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6532 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6533 mono_mb_emit_exception_marshal_directive (mb, msg);
6537 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6538 mono_mb_emit_exception_marshal_directive (mb, msg);
6541 if (spec->native != MONO_NATIVE_LPARRAY) {
6542 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6543 mono_mb_emit_exception_marshal_directive (mb, msg);
6547 /* FIXME: t is from the method which is wrapped, not the delegate type */
6548 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6550 param_num = spec->data.array_data.param_num;
6551 num_elem = spec->data.array_data.num_elem;
6552 if (spec->data.array_data.elem_mult == 0)
6553 /* param_num is not specified */
6556 if (param_num == -1) {
6557 if (num_elem <= 0) {
6558 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6559 mono_mb_emit_exception_marshal_directive (mb, msg);
6564 /* FIXME: Optimize blittable case */
6566 eklass = klass->element_class;
6567 if (eklass == mono_defaults.string_class) {
6569 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6571 else if (eklass == mono_defaults.stringbuilder_class) {
6573 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6578 mono_marshal_load_type_info (eklass);
6581 esize = sizeof (gpointer);
6583 esize = mono_class_native_size (eklass, NULL);
6584 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6585 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6587 mono_mb_emit_byte (mb, CEE_LDNULL);
6588 mono_mb_emit_stloc (mb, conv_arg);
6590 /* Check param index */
6591 if (param_num != -1) {
6592 if (param_num >= m->sig->param_count) {
6593 char *msg = g_strdup ("Array size control parameter index is out of range.");
6594 mono_mb_emit_exception_marshal_directive (mb, msg);
6597 switch (m->sig->params [param_num]->type) {
6610 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6611 mono_mb_emit_exception_marshal_directive (mb, msg);
6618 mono_mb_emit_ldarg (mb, argnum);
6619 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6621 mono_mb_emit_ldarg (mb, argnum);
6622 mono_mb_emit_stloc (mb, src_ptr);
6624 /* Create managed array */
6626 * The LPArray marshalling spec says that sometimes param_num starts
6627 * from 1, sometimes it starts from 0. But MS seems to allways start
6631 if (param_num == -1)
6632 mono_mb_emit_icon (mb, num_elem);
6634 /* FIXME: Add the two together */
6635 mono_mb_emit_ldarg (mb, param_num);
6637 mono_mb_emit_icon (mb, num_elem);
6638 mono_mb_emit_byte (mb, CEE_ADD);
6642 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6643 mono_mb_emit_stloc (mb, conv_arg);
6645 if (eklass->blittable) {
6646 mono_mb_emit_ldloc (mb, conv_arg);
6647 mono_mb_emit_byte (mb, CEE_CONV_I);
6648 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6649 mono_mb_emit_byte (mb, CEE_ADD);
6650 mono_mb_emit_ldarg (mb, argnum);
6651 mono_mb_emit_ldloc (mb, conv_arg);
6652 mono_mb_emit_byte (mb, CEE_LDLEN);
6653 mono_mb_emit_icon (mb, esize);
6654 mono_mb_emit_byte (mb, CEE_MUL);
6655 mono_mb_emit_byte (mb, CEE_PREFIX1);
6656 mono_mb_emit_byte (mb, CEE_CPBLK);
6660 /* Emit marshalling loop */
6661 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6662 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6663 mono_mb_emit_stloc (mb, index_var);
6665 mono_mb_emit_ldloc (mb, index_var);
6666 mono_mb_emit_ldloc (mb, conv_arg);
6667 mono_mb_emit_byte (mb, CEE_LDLEN);
6668 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6670 /* Emit marshalling code */
6672 g_assert (conv != -1);
6674 mono_mb_emit_ldloc (mb, conv_arg);
6675 mono_mb_emit_ldloc (mb, index_var);
6677 mono_mb_emit_ldloc (mb, src_ptr);
6678 mono_mb_emit_byte (mb, CEE_LDIND_I);
6680 mono_mb_emit_icall (mb, conv_to_icall (conv));
6681 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6684 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6685 mono_mb_emit_exception_marshal_directive (mb, msg);
6689 mono_mb_emit_add_to_local (mb, index_var, 1);
6690 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6692 mono_mb_emit_byte (mb, CEE_BR);
6693 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6695 mono_mb_patch_branch (mb, label1);
6696 mono_mb_patch_branch (mb, label3);
6700 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6702 guint32 label1, label2, label3;
6703 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6704 MonoMarshalConv conv;
6705 gboolean is_string = FALSE;
6708 /* Already handled in CONV_IN */
6711 /* These are already checked in CONV_IN */
6712 g_assert (!t->byref);
6713 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6714 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6716 param_num = spec->data.array_data.param_num;
6717 num_elem = spec->data.array_data.num_elem;
6719 if (spec->data.array_data.elem_mult == 0)
6720 /* param_num is not specified */
6723 if (param_num == -1) {
6724 if (num_elem <= 0) {
6725 g_assert_not_reached ();
6729 /* FIXME: Optimize blittable case */
6731 eklass = klass->element_class;
6732 if (eklass == mono_defaults.string_class) {
6734 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6736 else if (eklass == mono_defaults.stringbuilder_class) {
6738 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6743 mono_marshal_load_type_info (eklass);
6746 esize = sizeof (gpointer);
6748 esize = mono_class_native_size (eklass, NULL);
6750 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6751 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6754 mono_mb_emit_ldloc (mb, conv_arg);
6755 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6757 mono_mb_emit_ldarg (mb, argnum);
6758 mono_mb_emit_stloc (mb, dest_ptr);
6760 if (eklass->blittable) {
6762 mono_mb_emit_ldarg (mb, argnum);
6764 mono_mb_emit_ldloc (mb, conv_arg);
6765 mono_mb_emit_byte (mb, CEE_CONV_I);
6766 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6767 mono_mb_emit_byte (mb, CEE_ADD);
6769 mono_mb_emit_ldloc (mb, conv_arg);
6770 mono_mb_emit_byte (mb, CEE_LDLEN);
6771 mono_mb_emit_icon (mb, esize);
6772 mono_mb_emit_byte (mb, CEE_MUL);
6773 mono_mb_emit_byte (mb, CEE_PREFIX1);
6774 mono_mb_emit_byte (mb, CEE_CPBLK);
6778 /* Emit marshalling loop */
6779 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6780 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6781 mono_mb_emit_stloc (mb, index_var);
6783 mono_mb_emit_ldloc (mb, index_var);
6784 mono_mb_emit_ldloc (mb, conv_arg);
6785 mono_mb_emit_byte (mb, CEE_LDLEN);
6786 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6788 /* Emit marshalling code */
6790 g_assert (conv != -1);
6793 mono_mb_emit_ldloc (mb, dest_ptr);
6796 mono_mb_emit_ldloc (mb, conv_arg);
6797 mono_mb_emit_ldloc (mb, index_var);
6799 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6801 mono_mb_emit_icall (mb, conv_to_icall (conv));
6802 mono_mb_emit_byte (mb, CEE_STIND_I);
6805 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6806 mono_mb_emit_exception_marshal_directive (mb, msg);
6810 mono_mb_emit_add_to_local (mb, index_var, 1);
6811 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6813 mono_mb_emit_byte (mb, CEE_BR);
6814 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6816 mono_mb_patch_branch (mb, label1);
6817 mono_mb_patch_branch (mb, label3);
6821 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6823 guint32 label1, label2, label3;
6824 int index_var, src, dest, esize;
6825 MonoMarshalConv conv = -1;
6826 gboolean is_string = FALSE;
6828 g_assert (!t->byref);
6830 eklass = klass->element_class;
6832 mono_marshal_load_type_info (eklass);
6834 if (eklass == mono_defaults.string_class) {
6836 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6839 g_assert_not_reached ();
6843 esize = sizeof (gpointer);
6845 esize = mono_class_native_size (eklass, NULL);
6847 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6848 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6850 mono_mb_emit_stloc (mb, src);
6851 mono_mb_emit_ldloc (mb, src);
6852 mono_mb_emit_stloc (mb, 3);
6854 /* Check for null */
6855 mono_mb_emit_ldloc (mb, src);
6856 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6858 /* Allocate native array */
6859 mono_mb_emit_icon (mb, esize);
6860 mono_mb_emit_ldloc (mb, src);
6861 mono_mb_emit_byte (mb, CEE_LDLEN);
6863 if (eklass == mono_defaults.string_class) {
6864 /* Make the array bigger for the terminating null */
6865 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6866 mono_mb_emit_byte (mb, CEE_ADD);
6868 mono_mb_emit_byte (mb, CEE_MUL);
6869 mono_mb_emit_icall (mb, mono_marshal_alloc);
6870 mono_mb_emit_stloc (mb, dest);
6871 mono_mb_emit_ldloc (mb, dest);
6872 mono_mb_emit_stloc (mb, 3);
6874 /* Emit marshalling loop */
6875 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6876 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6877 mono_mb_emit_stloc (mb, index_var);
6879 mono_mb_emit_ldloc (mb, index_var);
6880 mono_mb_emit_ldloc (mb, src);
6881 mono_mb_emit_byte (mb, CEE_LDLEN);
6882 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6884 /* Emit marshalling code */
6886 g_assert (conv != -1);
6889 mono_mb_emit_ldloc (mb, dest);
6892 mono_mb_emit_ldloc (mb, src);
6893 mono_mb_emit_ldloc (mb, index_var);
6895 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6897 mono_mb_emit_icall (mb, conv_to_icall (conv));
6898 mono_mb_emit_byte (mb, CEE_STIND_I);
6901 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6902 mono_mb_emit_exception_marshal_directive (mb, msg);
6906 mono_mb_emit_add_to_local (mb, index_var, 1);
6907 mono_mb_emit_add_to_local (mb, dest, esize);
6909 mono_mb_emit_byte (mb, CEE_BR);
6910 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6912 mono_mb_patch_branch (mb, label3);
6913 mono_mb_patch_branch (mb, label1);
6917 g_assert_not_reached ();
6924 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6925 MonoMarshalSpec *spec,
6926 int conv_arg, MonoType **conv_arg_type,
6927 MarshalAction action)
6929 MonoMethodBuilder *mb = m->mb;
6932 case MARSHAL_ACTION_CONV_IN: {
6933 MonoType *local_type;
6934 int variant_bool = 0;
6938 local_type = &mono_defaults.int32_class->byval_arg;
6940 switch (spec->native) {
6941 case MONO_NATIVE_I1:
6942 local_type = &mono_defaults.byte_class->byval_arg;
6944 case MONO_NATIVE_VARIANTBOOL:
6945 local_type = &mono_defaults.int16_class->byval_arg;
6949 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6950 local_type = &mono_defaults.int32_class->byval_arg;
6954 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6955 conv_arg = mono_mb_add_local (mb, local_type);
6956 mono_mb_emit_ldarg (mb, argnum);
6957 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6959 mono_mb_emit_byte (mb, CEE_NEG);
6960 mono_mb_emit_stloc (mb, conv_arg);
6964 case MARSHAL_ACTION_CONV_OUT:
6967 mono_mb_emit_ldarg (mb, argnum);
6968 mono_mb_emit_ldloc (mb, conv_arg);
6969 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
6970 mono_mb_emit_byte (mb, CEE_NEG);
6971 mono_mb_emit_byte (mb, CEE_STIND_I1);
6974 case MARSHAL_ACTION_PUSH:
6976 mono_mb_emit_ldloc_addr (mb, conv_arg);
6978 mono_mb_emit_ldarg (mb, argnum);
6981 case MARSHAL_ACTION_CONV_RESULT:
6982 /* maybe we need to make sure that it fits within 8 bits */
6983 mono_mb_emit_stloc (mb, 3);
6987 g_assert_not_reached ();
6994 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6995 MonoMarshalSpec *spec, int conv_arg,
6996 MonoType **conv_arg_type, MarshalAction action)
6998 MonoMethodBuilder *mb = m->mb;
7001 case MARSHAL_ACTION_CONV_IN:
7002 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
7003 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7004 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7008 case MARSHAL_ACTION_PUSH:
7009 mono_mb_emit_ldarg (mb, argnum);
7012 case MARSHAL_ACTION_CONV_RESULT:
7013 /* no conversions necessary */
7014 mono_mb_emit_stloc (mb, 3);
7025 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7026 MonoMarshalSpec *spec, int conv_arg,
7027 MonoType **conv_arg_type, MarshalAction action)
7029 MonoMethodBuilder *mb = m->mb;
7032 case MARSHAL_ACTION_PUSH:
7033 /* fixme: dont know how to marshal that. We cant simply
7034 * convert it to a one byte UTF8 character, because an
7035 * unicode character may need more that one byte in UTF8 */
7036 mono_mb_emit_ldarg (mb, argnum);
7039 case MARSHAL_ACTION_CONV_RESULT:
7040 /* fixme: we need conversions here */
7041 mono_mb_emit_stloc (mb, 3);
7052 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7053 MonoMarshalSpec *spec, int conv_arg,
7054 MonoType **conv_arg_type, MarshalAction action)
7056 MonoMethodBuilder *mb = m->mb;
7059 case MARSHAL_ACTION_PUSH:
7060 mono_mb_emit_ldarg (mb, argnum);
7063 case MARSHAL_ACTION_CONV_RESULT:
7064 /* no conversions necessary */
7065 mono_mb_emit_stloc (mb, 3);
7076 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7077 MonoMarshalSpec *spec, int conv_arg,
7078 MonoType **conv_arg_type, MarshalAction action)
7080 /* Ensure that we have marshalling info for this param */
7081 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7083 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7084 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7086 if (spec && spec->native == MONO_NATIVE_ASANY)
7087 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7090 case MONO_TYPE_VALUETYPE:
7091 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7092 case MONO_TYPE_STRING:
7093 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7094 case MONO_TYPE_CLASS:
7095 case MONO_TYPE_OBJECT:
7096 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7097 case MONO_TYPE_ARRAY:
7098 case MONO_TYPE_SZARRAY:
7099 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7100 case MONO_TYPE_BOOLEAN:
7101 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7103 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7104 case MONO_TYPE_CHAR:
7105 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7118 case MONO_TYPE_FNPTR:
7119 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7126 * mono_marshal_emit_native_wrapper:
7127 * @image: the image to use for looking up custom marshallers
7128 * @sig: The signature of the native function
7129 * @piinfo: Marshalling information
7130 * @mspecs: Marshalling information
7131 * @func: the native function to call
7133 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7136 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7138 EmitMarshalContext m;
7139 MonoMethodSignature *csig;
7141 int i, argnum, *tmp_locals;
7143 static MonoMethodSignature *get_last_error_sig = NULL;
7148 /* we copy the signature, so that we can set pinvoke to 0 */
7149 csig = signature_dup (mb->method->klass->image, sig);
7154 /* we allocate local for use with emit_struct_conv() */
7155 /* allocate local 0 (pointer) src_ptr */
7156 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7157 /* allocate local 1 (pointer) dst_ptr */
7158 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7159 /* allocate local 2 (boolean) delete_old */
7160 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7162 /* delete_old = FALSE */
7163 mono_mb_emit_icon (mb, 0);
7164 mono_mb_emit_stloc (mb, 2);
7166 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7167 /* allocate local 3 to store the return value */
7168 mono_mb_add_local (mb, sig->ret);
7171 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7172 /* Return type custom marshaling */
7174 * Since we can't determine the return type of the unmanaged function,
7175 * we assume it returns a pointer, and pass that pointer to
7176 * MarshalNativeToManaged.
7178 csig->ret = &mono_defaults.int_class->byval_arg;
7181 /* we first do all conversions */
7182 tmp_locals = alloca (sizeof (int) * sig->param_count);
7183 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7185 for (i = 0; i < sig->param_count; i ++) {
7186 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7189 /* push all arguments */
7192 mono_mb_emit_byte (mb, CEE_LDARG_0);
7195 for (i = 0; i < sig->param_count; i++) {
7196 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7199 /* call the native method */
7200 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7201 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7204 mono_mb_emit_native_call (mb, csig, func);
7207 /* Set LastError if needed */
7208 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7209 if (!get_last_error_sig) {
7210 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7211 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7212 get_last_error_sig->pinvoke = 1;
7215 #ifdef PLATFORM_WIN32
7217 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7218 * clobber its value.
7220 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7221 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7223 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7227 /* convert the result */
7228 if (!sig->ret->byref) {
7229 MonoMarshalSpec *spec = mspecs [0];
7230 type = sig->ret->type;
7232 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7233 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7238 case MONO_TYPE_VOID:
7240 case MONO_TYPE_VALUETYPE:
7241 klass = sig->ret->data.klass;
7242 if (klass->enumtype) {
7243 type = sig->ret->data.klass->enum_basetype->type;
7246 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7260 case MONO_TYPE_FNPTR:
7261 case MONO_TYPE_STRING:
7262 case MONO_TYPE_CLASS:
7263 case MONO_TYPE_OBJECT:
7264 case MONO_TYPE_BOOLEAN:
7265 case MONO_TYPE_ARRAY:
7266 case MONO_TYPE_SZARRAY:
7267 case MONO_TYPE_CHAR:
7269 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7271 case MONO_TYPE_TYPEDBYREF:
7273 g_warning ("return type 0x%02x unknown", sig->ret->type);
7274 g_assert_not_reached ();
7278 mono_mb_emit_stloc (mb, 3);
7282 * Need to call this after converting the result since MONO_VTADDR needs
7283 * to be adjacent to the call instruction.
7285 emit_thread_interrupt_checkpoint (mb);
7287 /* we need to convert byref arguments back and free string arrays */
7288 for (i = 0; i < sig->param_count; i++) {
7289 MonoType *t = sig->params [i];
7290 MonoMarshalSpec *spec = mspecs [i + 1];
7292 argnum = i + sig->hasthis;
7294 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7295 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7300 case MONO_TYPE_STRING:
7301 case MONO_TYPE_VALUETYPE:
7302 case MONO_TYPE_CLASS:
7303 case MONO_TYPE_OBJECT:
7304 case MONO_TYPE_SZARRAY:
7305 case MONO_TYPE_BOOLEAN:
7306 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7311 if (!MONO_TYPE_IS_VOID(sig->ret))
7312 mono_mb_emit_ldloc (mb, 3);
7314 mono_mb_emit_byte (mb, CEE_RET);
7318 * mono_marshal_get_native_wrapper:
7319 * @method: The MonoMethod to wrap.
7321 * generates IL code for the pinvoke wrapper (the generated method
7322 * calls the unmanaged code in piinfo->addr)
7325 mono_marshal_get_native_wrapper (MonoMethod *method)
7327 MonoMethodSignature *sig, *csig;
7328 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7329 MonoMethodBuilder *mb;
7330 MonoMarshalSpec **mspecs;
7333 gboolean pinvoke = FALSE;
7336 const char *exc_class = "MissingMethodException";
7337 const char *exc_arg = NULL;
7339 g_assert (method != NULL);
7340 g_assert (mono_method_signature (method)->pinvoke);
7342 cache = method->klass->image->native_wrapper_cache;
7343 if ((res = mono_marshal_find_in_cache (cache, method)))
7346 if (MONO_CLASS_IS_IMPORT (method->klass))
7347 return cominterop_get_native_wrapper (method);
7349 sig = mono_method_signature (method);
7351 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7352 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7355 if (!piinfo->addr) {
7357 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7359 piinfo->addr = mono_lookup_internal_call (method);
7362 /* hack - redirect certain string constructors to CreateString */
7363 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7364 g_assert (!pinvoke);
7365 g_assert (method->string_ctor);
7366 g_assert (sig->hasthis);
7368 /* CreateString returns a value */
7369 csig = signature_dup (method->klass->image, sig);
7370 csig->ret = &mono_defaults.string_class->byval_arg;
7374 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7375 if (!strcmp ("CreateString", res->name) &&
7376 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7378 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7379 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7381 /* create a wrapper to preserve .ctor in stack trace */
7382 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7384 mono_mb_emit_byte (mb, CEE_LDARG_0);
7385 for (i = 1; i <= csig->param_count; i++)
7386 mono_mb_emit_ldarg (mb, i);
7387 mono_mb_emit_managed_call (mb, res, NULL);
7388 mono_mb_emit_byte (mb, CEE_RET);
7390 /* use native_wrapper_cache because internal calls are looked up there */
7391 res = mono_mb_create_and_cache (cache, method,
7392 mb, csig, csig->param_count + 1);
7400 /* exception will be thrown */
7401 piinfo->addr = NULL;
7402 g_warning ("cannot find CreateString for .ctor");
7405 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7407 mb->method->save_lmf = 1;
7409 if (!piinfo->addr) {
7410 mono_mb_emit_exception (mb, exc_class, exc_arg);
7411 csig = signature_dup (method->klass->image, sig);
7413 res = mono_mb_create_and_cache (cache, method,
7414 mb, csig, csig->param_count + 16);
7419 /* internal calls: we simply push all arguments and call the method (no conversions) */
7420 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7422 /* hack - string constructors returns a value */
7423 if (method->string_ctor) {
7424 csig = signature_dup (method->klass->image, sig);
7425 csig->ret = &mono_defaults.string_class->byval_arg;
7430 mono_mb_emit_byte (mb, CEE_LDARG_0);
7432 for (i = 0; i < sig->param_count; i++)
7433 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7435 g_assert (piinfo->addr);
7436 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7437 emit_thread_interrupt_checkpoint (mb);
7438 mono_mb_emit_byte (mb, CEE_RET);
7440 csig = signature_dup (method->klass->image, csig);
7442 res = mono_mb_create_and_cache (cache, method,
7443 mb, csig, csig->param_count + 16);
7450 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7451 mono_method_get_marshal_info (method, mspecs);
7453 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr);
7455 csig = signature_dup (method->klass->image, sig);
7457 res = mono_mb_create_and_cache (cache, method,
7458 mb, csig, csig->param_count + 16);
7461 for (i = sig->param_count; i >= 0; i--)
7463 mono_metadata_free_marshal_spec (mspecs [i]);
7466 /* 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)); */
7472 * mono_marshal_get_native_func_wrapper:
7473 * @image: The image to use for memory allocation and for looking up custom marshallers.
7474 * @sig: The signature of the function
7475 * @func: The native function to wrap
7477 * Returns a wrapper method around native functions, similar to the pinvoke
7481 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7482 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7484 MonoMethodSignature *csig;
7486 MonoMethodBuilder *mb;
7491 cache = image->native_wrapper_cache;
7492 if ((res = mono_marshal_find_in_cache (cache, func)))
7495 name = g_strdup_printf ("wrapper_native_%p", func);
7496 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7497 mb->method->save_lmf = 1;
7499 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func);
7501 csig = signature_dup (image, sig);
7503 res = mono_mb_create_and_cache (cache, func,
7504 mb, csig, csig->param_count + 16);
7507 /* 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)); */
7513 * generates IL code to call managed methods from unmanaged code
7516 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
7518 static MonoClass *UnmanagedFunctionPointerAttribute;
7519 MonoMethodSignature *sig, *csig, *invoke_sig;
7520 MonoMethodBuilder *mb;
7521 MonoMethod *res, *invoke;
7522 MonoMarshalSpec **mspecs;
7523 MonoMethodPInvoke piinfo;
7526 EmitMarshalContext m;
7528 g_assert (method != NULL);
7529 g_assert (!mono_method_signature (method)->pinvoke);
7532 * FIXME: Should cache the method+delegate type pair, since the same method
7533 * could be called with different delegates, thus different marshalling
7536 cache = method->klass->image->managed_wrapper_cache;
7537 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
7540 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
7541 invoke_sig = mono_method_signature (invoke);
7543 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7544 mono_method_get_marshal_info (invoke, mspecs);
7546 sig = mono_method_signature (method);
7548 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7550 /* allocate local 0 (pointer) src_ptr */
7551 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7552 /* allocate local 1 (pointer) dst_ptr */
7553 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7554 /* allocate local 2 (boolean) delete_old */
7555 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7557 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7558 /* allocate local 3 to store the return value */
7559 mono_mb_add_local (mb, sig->ret);
7562 mono_mb_emit_icon (mb, 0);
7563 mono_mb_emit_stloc (mb, 2);
7565 /* we copy the signature, so that we can modify it */
7566 csig = signature_dup (method->klass->image, sig);
7575 m.image = method->klass->image;
7577 #ifdef PLATFORM_WIN32
7579 * Under windows, delegates passed to native code must use the STDCALL
7580 * calling convention.
7582 csig->call_convention = MONO_CALL_STDCALL;
7585 /* Change default calling convention if needed */
7586 /* Why is this a modopt ? */
7587 if (invoke_sig->ret && invoke_sig->ret->num_mods) {
7588 for (i = 0; i < invoke_sig->ret->num_mods; ++i) {
7589 MonoClass *cmod_class = mono_class_get (delegate_klass->image, invoke_sig->ret->modifiers [i].token);
7590 g_assert (cmod_class);
7591 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7592 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7593 csig->call_convention = MONO_CALL_C;
7594 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7595 csig->call_convention = MONO_CALL_STDCALL;
7596 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7597 csig->call_convention = MONO_CALL_FASTCALL;
7598 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7599 csig->call_convention = MONO_CALL_THISCALL;
7604 /* Handle the UnmanagedFunctionPointerAttribute */
7605 if (!UnmanagedFunctionPointerAttribute)
7606 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7608 /* The attribute is only available in Net 2.0 */
7609 if (UnmanagedFunctionPointerAttribute) {
7610 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
7611 MonoCustomAttrInfo *cinfo;
7614 * The pinvoke attributes are stored in a real custom attribute so we have to
7617 cinfo = mono_custom_attrs_from_class (delegate_klass);
7619 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
7621 memset (&piinfo, 0, sizeof (piinfo));
7623 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
7625 csig->call_convention = attr->call_conv - 1;
7628 mono_custom_attrs_free (cinfo);
7632 /* fixme: howto handle this ? */
7635 mono_mb_emit_ptr (mb, this);
7638 g_assert_not_reached ();
7642 /* we first do all conversions */
7643 tmp_locals = alloca (sizeof (int) * sig->param_count);
7644 for (i = 0; i < sig->param_count; i ++) {
7645 MonoType *t = sig->params [i];
7648 case MONO_TYPE_OBJECT:
7649 case MONO_TYPE_CLASS:
7650 case MONO_TYPE_VALUETYPE:
7651 case MONO_TYPE_ARRAY:
7652 case MONO_TYPE_SZARRAY:
7653 case MONO_TYPE_STRING:
7654 tmp_locals [i] = emit_marshal (&m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7663 emit_thread_interrupt_checkpoint (mb);
7665 for (i = 0; i < sig->param_count; i++) {
7666 MonoType *t = sig->params [i];
7668 if (tmp_locals [i]) {
7670 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7672 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7675 mono_mb_emit_ldarg (mb, i);
7678 mono_mb_emit_managed_call (mb, method, NULL);
7680 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7681 emit_marshal (&m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7684 if (!sig->ret->byref) {
7685 switch (sig->ret->type) {
7686 case MONO_TYPE_VOID:
7688 case MONO_TYPE_BOOLEAN:
7702 case MONO_TYPE_OBJECT:
7703 mono_mb_emit_stloc (mb, 3);
7705 case MONO_TYPE_STRING:
7706 csig->ret = &mono_defaults.int_class->byval_arg;
7707 emit_marshal (&m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7709 case MONO_TYPE_VALUETYPE:
7710 case MONO_TYPE_CLASS:
7711 case MONO_TYPE_SZARRAY:
7712 emit_marshal (&m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7715 g_warning ("return type 0x%02x unknown", sig->ret->type);
7716 g_assert_not_reached ();
7719 mono_mb_emit_stloc (mb, 3);
7722 /* Convert byref arguments back */
7723 for (i = 0; i < sig->param_count; i ++) {
7724 MonoType *t = sig->params [i];
7725 MonoMarshalSpec *spec = mspecs [i + 1];
7727 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7728 emit_marshal (&m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7730 else if (t->byref) {
7732 case MONO_TYPE_CLASS:
7733 case MONO_TYPE_VALUETYPE:
7734 emit_marshal (&m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7738 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7739 /* The [Out] information is encoded in the delegate signature */
7741 case MONO_TYPE_SZARRAY:
7742 case MONO_TYPE_CLASS:
7743 case MONO_TYPE_VALUETYPE:
7744 emit_marshal (&m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7747 g_assert_not_reached ();
7753 mono_mb_emit_ldloc (mb, m.retobj_var);
7754 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7755 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m.retobj_class);
7758 if (!MONO_TYPE_IS_VOID(sig->ret))
7759 mono_mb_emit_ldloc (mb, 3);
7760 mono_mb_emit_byte (mb, CEE_RET);
7764 res = mono_mb_create_and_cache (cache, method,
7765 mb, csig, sig->param_count + 16);
7768 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
7772 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7774 mono_metadata_free_marshal_spec (mspecs [i]);
7777 /* 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)); */
7782 static MonoReflectionType *
7783 type_from_handle (MonoType *handle)
7785 MonoDomain *domain = mono_domain_get ();
7786 MonoClass *klass = mono_class_from_mono_type (handle);
7788 MONO_ARCH_SAVE_REGS;
7790 mono_class_init (klass);
7791 return mono_type_get_object (domain, handle);
7795 * mono_marshal_get_isinst:
7796 * @klass: the type of the field
7798 * This method generates a function which can be used to check if an object is
7799 * an instance of the given type, icluding the case where the object is a proxy.
7800 * The generated function has the following signature:
7801 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
7804 mono_marshal_get_isinst (MonoClass *klass)
7806 static MonoMethodSignature *isint_sig = NULL;
7809 int pos_was_ok, pos_failed, pos_end, pos_end2;
7811 MonoMethodBuilder *mb;
7813 cache = klass->image->isinst_cache;
7814 if ((res = mono_marshal_find_in_cache (cache, klass)))
7818 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
7819 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
7820 isint_sig->ret = &mono_defaults.object_class->byval_arg;
7821 isint_sig->pinvoke = 0;
7824 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
7825 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
7828 mb->method->save_lmf = 1;
7830 /* check if the object is a proxy that needs special cast */
7831 mono_mb_emit_ldarg (mb, 0);
7832 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7833 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
7835 /* The result of MONO_ISINST can be:
7836 0) the type check succeeded
7837 1) the type check did not succeed
7838 2) a CanCastTo call is needed */
7840 mono_mb_emit_byte (mb, CEE_DUP);
7841 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
7843 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
7844 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
7846 /* get the real proxy from the transparent proxy*/
7848 mono_mb_emit_ldarg (mb, 0);
7849 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
7850 pos_end = mono_mb_emit_branch (mb, CEE_BR);
7854 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
7855 mono_mb_emit_byte (mb, CEE_LDNULL);
7856 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
7860 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
7861 mono_mb_emit_byte (mb, CEE_POP);
7862 mono_mb_emit_ldarg (mb, 0);
7866 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
7867 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
7868 mono_mb_emit_byte (mb, CEE_RET);
7870 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
7877 * mono_marshal_get_castclass:
7878 * @klass: the type of the field
7880 * This method generates a function which can be used to cast an object to
7881 * an instance of the given type, icluding the case where the object is a proxy.
7882 * The generated function has the following signature:
7883 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
7886 mono_marshal_get_castclass (MonoClass *klass)
7888 static MonoMethodSignature *castclass_sig = NULL;
7891 int pos_was_ok, pos_was_ok2;
7893 MonoMethodBuilder *mb;
7895 cache = klass->image->castclass_cache;
7896 if ((res = mono_marshal_find_in_cache (cache, klass)))
7899 if (!castclass_sig) {
7900 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
7901 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
7902 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
7903 castclass_sig->pinvoke = 0;
7906 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
7907 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
7910 mb->method->save_lmf = 1;
7912 /* check if the object is a proxy that needs special cast */
7913 mono_mb_emit_ldarg (mb, 0);
7914 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7915 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
7917 /* The result of MONO_ISINST can be:
7918 0) the cast is valid
7919 1) cast of unknown proxy type
7920 or an exception if the cast is is invalid
7923 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
7925 /* get the real proxy from the transparent proxy*/
7927 mono_mb_emit_ldarg (mb, 0);
7928 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
7929 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7932 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
7935 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
7936 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
7937 mono_mb_emit_ldarg (mb, 0);
7940 mono_mb_emit_byte (mb, CEE_RET);
7942 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
7949 mono_marshal_get_proxy_cancast (MonoClass *klass)
7951 static MonoMethodSignature *isint_sig = NULL;
7954 int pos_failed, pos_end;
7956 MonoMethod *can_cast_to;
7957 MonoMethodDesc *desc;
7958 MonoMethodBuilder *mb;
7960 cache = klass->image->proxy_isinst_cache;
7961 if ((res = mono_marshal_find_in_cache (cache, klass)))
7965 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
7966 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
7967 isint_sig->ret = &mono_defaults.object_class->byval_arg;
7968 isint_sig->pinvoke = 0;
7971 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
7972 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
7975 mb->method->save_lmf = 1;
7977 /* get the real proxy from the transparent proxy*/
7978 mono_mb_emit_ldarg (mb, 0);
7979 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
7980 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7982 /* get the reflection type from the type handle */
7983 mono_mb_emit_ptr (mb, &klass->byval_arg);
7984 mono_mb_emit_icall (mb, type_from_handle);
7986 mono_mb_emit_ldarg (mb, 0);
7988 /* make the call to CanCastTo (type, ob) */
7989 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
7990 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
7991 g_assert (can_cast_to);
7992 mono_method_desc_free (desc);
7993 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
7995 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
7997 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
7998 mono_mb_emit_ptr (mb, &klass->byval_arg);
7999 mono_mb_emit_icall (mb, type_from_handle);
8000 mono_mb_emit_ldarg (mb, 0);
8002 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8003 emit_thread_interrupt_checkpoint (mb);
8005 mono_mb_emit_ldarg (mb, 0);
8006 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8010 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
8011 mono_mb_emit_byte (mb, CEE_LDNULL);
8015 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
8016 mono_mb_emit_byte (mb, CEE_RET);
8018 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8025 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8028 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8029 klass = mono_class_from_mono_type (rtype->type);
8030 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8034 * mono_marshal_get_struct_to_ptr:
8037 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8040 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8042 MonoMethodBuilder *mb;
8043 static MonoMethod *stoptr = NULL;
8046 g_assert (klass != NULL);
8048 mono_marshal_load_type_info (klass);
8050 if (klass->marshal_info->str_to_ptr)
8051 return klass->marshal_info->str_to_ptr;
8054 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8057 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8059 if (klass->blittable) {
8060 mono_mb_emit_byte (mb, CEE_LDARG_1);
8061 mono_mb_emit_byte (mb, CEE_LDARG_0);
8062 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8063 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8064 mono_mb_emit_byte (mb, CEE_PREFIX1);
8065 mono_mb_emit_byte (mb, CEE_CPBLK);
8068 /* allocate local 0 (pointer) src_ptr */
8069 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8070 /* allocate local 1 (pointer) dst_ptr */
8071 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8072 /* allocate local 2 (boolean) delete_old */
8073 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8074 mono_mb_emit_byte (mb, CEE_LDARG_2);
8075 mono_mb_emit_stloc (mb, 2);
8077 /* initialize src_ptr to point to the start of object data */
8078 mono_mb_emit_byte (mb, CEE_LDARG_0);
8079 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8080 mono_mb_emit_stloc (mb, 0);
8082 /* initialize dst_ptr */
8083 mono_mb_emit_byte (mb, CEE_LDARG_1);
8084 mono_mb_emit_stloc (mb, 1);
8086 emit_struct_conv (mb, klass, FALSE);
8089 mono_mb_emit_byte (mb, CEE_RET);
8091 res = mono_mb_create_method (mb, mono_method_signature (stoptr), 0);
8094 klass->marshal_info->str_to_ptr = res;
8099 * mono_marshal_get_ptr_to_struct:
8102 * generates IL code for PtrToStructure (IntPtr src, object structure)
8105 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8107 MonoMethodBuilder *mb;
8108 static MonoMethodSignature *ptostr = NULL;
8111 g_assert (klass != NULL);
8113 mono_marshal_load_type_info (klass);
8115 if (klass->marshal_info->ptr_to_str)
8116 return klass->marshal_info->ptr_to_str;
8119 /* Create the signature corresponding to
8120 static void PtrToStructure (IntPtr ptr, object structure);
8121 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8122 ptostr = mono_create_icall_signature ("void ptr object");
8124 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8126 if (klass->blittable) {
8127 mono_mb_emit_byte (mb, CEE_LDARG_1);
8128 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8129 mono_mb_emit_byte (mb, CEE_LDARG_0);
8130 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8131 mono_mb_emit_byte (mb, CEE_PREFIX1);
8132 mono_mb_emit_byte (mb, CEE_CPBLK);
8135 /* allocate local 0 (pointer) src_ptr */
8136 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8137 /* allocate local 1 (pointer) dst_ptr */
8138 mono_mb_add_local (mb, &klass->this_arg);
8140 /* initialize src_ptr to point to the start of object data */
8141 mono_mb_emit_byte (mb, CEE_LDARG_0);
8142 mono_mb_emit_stloc (mb, 0);
8144 /* initialize dst_ptr */
8145 mono_mb_emit_byte (mb, CEE_LDARG_1);
8146 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8147 mono_mb_emit_stloc (mb, 1);
8149 emit_struct_conv (mb, klass, TRUE);
8152 mono_mb_emit_byte (mb, CEE_RET);
8154 res = mono_mb_create_method (mb, ptostr, 0);
8157 klass->marshal_info->ptr_to_str = res;
8162 * generates IL code for the synchronized wrapper: the generated method
8163 * calls METHOD while locking 'this' or the parent type.
8166 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8168 static MonoMethod *enter_method, *exit_method;
8169 MonoMethodSignature *sig;
8170 MonoExceptionClause *clause;
8171 MonoMethodHeader *header;
8172 MonoMethodBuilder *mb;
8175 int i, pos, this_local, ret_local = 0;
8179 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8182 cache = method->klass->image->synchronized_cache;
8183 if ((res = mono_marshal_find_in_cache (cache, method)))
8186 sig = signature_dup (method->klass->image, mono_method_signature (method));
8189 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8192 if (!MONO_TYPE_IS_VOID (sig->ret))
8193 ret_local = mono_mb_add_local (mb, sig->ret);
8196 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8198 mono_loader_lock ();
8199 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
8200 mono_loader_unlock ();
8201 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8203 if (!enter_method) {
8204 MonoMethodDesc *desc;
8206 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8207 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8208 g_assert (enter_method);
8209 mono_method_desc_free (desc);
8210 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8211 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8212 g_assert (exit_method);
8213 mono_method_desc_free (desc);
8216 /* Push this or the type object */
8217 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8219 * GetTypeFromHandle isn't called as a managed method because it has
8220 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
8221 * transformed into something else by the JIT.
8223 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
8224 mono_mb_emit_icall (mb, type_from_handle);
8227 mono_mb_emit_ldarg (mb, 0);
8228 mono_mb_emit_stloc (mb, this_local);
8230 /* Call Monitor::Enter() */
8231 mono_mb_emit_ldloc (mb, this_local);
8232 mono_mb_emit_managed_call (mb, enter_method, NULL);
8234 clause->try_offset = mb->pos;
8236 /* Call the method */
8238 mono_mb_emit_ldarg (mb, 0);
8239 for (i = 0; i < sig->param_count; i++)
8240 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8242 /* this is needed to avoid recursion */
8243 mono_mb_emit_byte (mb, CEE_PREFIX1);
8244 mono_mb_emit_op (mb, CEE_LDFTN, method);
8245 mono_mb_emit_calli (mb, mono_method_signature (method));
8247 if (!MONO_TYPE_IS_VOID (sig->ret))
8248 mono_mb_emit_stloc (mb, ret_local);
8250 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8252 clause->try_len = mb->pos - clause->try_offset;
8253 clause->handler_offset = mb->pos;
8255 /* Call Monitor::Exit() */
8256 mono_mb_emit_ldloc (mb, this_local);
8257 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
8258 mono_mb_emit_managed_call (mb, exit_method, NULL);
8259 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8261 clause->handler_len = mb->pos - clause->handler_offset;
8263 mono_mb_patch_branch (mb, pos);
8264 if (!MONO_TYPE_IS_VOID (sig->ret))
8265 mono_mb_emit_ldloc (mb, ret_local);
8266 mono_mb_emit_byte (mb, CEE_RET);
8268 res = mono_mb_create_and_cache (cache, method,
8269 mb, sig, sig->param_count + 16);
8272 header = ((MonoMethodNormal *)res)->header;
8273 header->num_clauses = 1;
8274 header->clauses = clause;
8281 * the returned method calls 'method' unboxing the this argument
8284 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8286 MonoMethodSignature *sig = mono_method_signature (method);
8288 MonoMethodBuilder *mb;
8292 cache = method->klass->image->unbox_wrapper_cache;
8293 if ((res = mono_marshal_find_in_cache (cache, method)))
8296 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8298 g_assert (sig->hasthis);
8300 mono_mb_emit_ldarg (mb, 0);
8301 mono_mb_emit_icon (mb, sizeof (MonoObject));
8302 mono_mb_emit_byte (mb, CEE_ADD);
8303 for (i = 0; i < sig->param_count; ++i)
8304 mono_mb_emit_ldarg (mb, i + 1);
8305 mono_mb_emit_managed_call (mb, method, NULL);
8306 mono_mb_emit_byte (mb, CEE_RET);
8308 res = mono_mb_create_and_cache (cache, method,
8309 mb, sig, sig->param_count + 16);
8312 /* 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)); */
8318 mono_marshal_get_stelemref ()
8320 static MonoMethod* ret = NULL;
8321 MonoMethodSignature *sig;
8322 MonoMethodBuilder *mb;
8324 guint32 b1, b2, b3, b4;
8327 int array_slot_addr;
8332 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8335 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8337 /* void stelemref (void* array, int idx, void* value) */
8338 sig->ret = &mono_defaults.void_class->byval_arg;
8339 sig->params [0] = &mono_defaults.object_class->byval_arg;
8340 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8341 sig->params [2] = &mono_defaults.object_class->byval_arg;
8343 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8344 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8345 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8349 <ldelema (bound check)>
8353 aklass = array->vtable->klass->element_class;
8354 vklass = value->vtable->klass;
8356 if (vklass->idepth < aklass->idepth)
8359 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8363 *array_slot_addr = value;
8367 if (mono_object_isinst (value, aklass))
8370 throw new ArrayTypeMismatchException ();
8373 /* ldelema (implicit bound check) */
8374 mono_mb_emit_ldarg (mb, 0);
8375 mono_mb_emit_ldarg (mb, 1);
8376 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8377 mono_mb_emit_stloc (mb, array_slot_addr);
8379 /* if (!value) goto do_store */
8380 mono_mb_emit_ldarg (mb, 2);
8381 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8383 /* aklass = array->vtable->klass->element_class */
8384 mono_mb_emit_ldarg (mb, 0);
8385 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8386 mono_mb_emit_byte (mb, CEE_LDIND_I);
8387 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8388 mono_mb_emit_byte (mb, CEE_LDIND_I);
8389 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8390 mono_mb_emit_byte (mb, CEE_LDIND_I);
8391 mono_mb_emit_stloc (mb, aklass);
8393 /* vklass = value->vtable->klass */
8394 mono_mb_emit_ldarg (mb, 2);
8395 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8396 mono_mb_emit_byte (mb, CEE_LDIND_I);
8397 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8398 mono_mb_emit_byte (mb, CEE_LDIND_I);
8399 mono_mb_emit_stloc (mb, vklass);
8401 /* if (vklass->idepth < aklass->idepth) goto failue */
8402 mono_mb_emit_ldloc (mb, vklass);
8403 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8404 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8406 mono_mb_emit_ldloc (mb, aklass);
8407 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8408 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8410 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8412 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8413 mono_mb_emit_ldloc (mb, vklass);
8414 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8415 mono_mb_emit_byte (mb, CEE_LDIND_I);
8417 mono_mb_emit_ldloc (mb, aklass);
8418 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8419 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8420 mono_mb_emit_icon (mb, 1);
8421 mono_mb_emit_byte (mb, CEE_SUB);
8422 mono_mb_emit_icon (mb, sizeof (void*));
8423 mono_mb_emit_byte (mb, CEE_MUL);
8424 mono_mb_emit_byte (mb, CEE_ADD);
8425 mono_mb_emit_byte (mb, CEE_LDIND_I);
8427 mono_mb_emit_ldloc (mb, aklass);
8429 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8433 mono_mb_patch_branch (mb, b1);
8434 mono_mb_emit_ldloc (mb, array_slot_addr);
8435 mono_mb_emit_ldarg (mb, 2);
8436 mono_mb_emit_byte (mb, CEE_STIND_REF);
8438 mono_mb_emit_byte (mb, CEE_RET);
8441 mono_mb_patch_branch (mb, b2);
8442 mono_mb_patch_branch (mb, b3);
8444 mono_mb_emit_ldarg (mb, 2);
8445 mono_mb_emit_ldloc (mb, aklass);
8446 mono_mb_emit_icall (mb, mono_object_isinst);
8448 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8449 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8450 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8452 mono_mb_emit_byte (mb, CEE_RET);
8453 ret = mono_mb_create_method (mb, sig, 4);
8459 mono_marshal_get_write_barrier (void)
8461 static MonoMethod* ret = NULL;
8462 MonoMethodSignature *sig;
8463 MonoMethodBuilder *mb;
8469 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
8471 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8473 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
8474 sig->ret = &mono_defaults.void_class->byval_arg;
8475 sig->params [0] = &mono_defaults.object_class->this_arg;
8476 sig->params [1] = &mono_defaults.object_class->byval_arg;
8478 /* just the store right now: add an hook for the GC to use, maybe something
8479 * that can be used for stelemref as well
8480 * We need a write barrier variant to be used with struct copies as well, though
8481 * there are also other approaches possible, like writing a wrapper specific to
8482 * the struct or to the reference pattern in the struct...
8483 * Depending on the GC, we may want variants that take the object we store to
8484 * when it is available.
8486 mono_mb_emit_ldarg (mb, 0);
8487 mono_mb_emit_ldarg (mb, 1);
8488 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
8489 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
8491 mono_mb_emit_byte (mb, CEE_RET);
8493 ret = mono_mb_create_method (mb, sig, max_stack);
8499 mono_marshal_alloc (gulong size)
8503 #ifdef PLATFORM_WIN32
8504 res = CoTaskMemAlloc (size);
8506 res = g_try_malloc ((gulong)size);
8508 mono_gc_out_of_memory ((gulong)size);
8514 mono_marshal_free (gpointer ptr)
8516 #ifdef PLATFORM_WIN32
8517 CoTaskMemFree (ptr);
8524 mono_marshal_free_array (gpointer *ptr, int size)
8531 for (i = 0; i < size; i++)
8537 mono_marshal_realloc (gpointer ptr, gpointer size)
8539 MONO_ARCH_SAVE_REGS;
8541 return g_try_realloc (ptr, (gulong)size);
8545 mono_marshal_string_to_utf16 (MonoString *s)
8547 return s ? mono_string_chars (s) : NULL;
8551 * mono_marshal_set_last_error:
8553 * This function is invoked to set the last error value from a P/Invoke call
8554 * which has SetLastError set.
8557 mono_marshal_set_last_error (void)
8560 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
8562 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
8567 mono_marshal_set_last_error_windows (int error)
8570 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
8575 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
8576 gpointer dest, gint32 length)
8581 MONO_ARCH_SAVE_REGS;
8583 MONO_CHECK_ARG_NULL (src);
8584 MONO_CHECK_ARG_NULL (dest);
8586 g_assert (src->obj.vtable->klass->rank == 1);
8587 g_assert (start_index >= 0);
8588 g_assert (length >= 0);
8589 g_assert (start_index + length <= mono_array_length (src));
8591 element_size = mono_array_element_size (src->obj.vtable->klass);
8593 /* no references should be involved */
8594 source_addr = mono_array_addr_with_size (src, element_size, start_index);
8596 memcpy (dest, source_addr, length * element_size);
8600 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
8601 MonoArray *dest, gint32 length)
8606 MONO_ARCH_SAVE_REGS;
8608 MONO_CHECK_ARG_NULL (src);
8609 MONO_CHECK_ARG_NULL (dest);
8611 g_assert (dest->obj.vtable->klass->rank == 1);
8612 g_assert (start_index >= 0);
8613 g_assert (length >= 0);
8614 g_assert (start_index + length <= mono_array_length (dest));
8616 element_size = mono_array_element_size (dest->obj.vtable->klass);
8618 /* no references should be involved */
8619 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
8621 memcpy (dest_addr, src, length * element_size);
8624 #if NO_UNALIGNED_ACCESS
8625 #define RETURN_UNALIGNED(type, addr) \
8628 memcpy(&val, p + offset, sizeof(val)); \
8631 #define WRITE_UNALIGNED(type, addr, val) \
8632 memcpy(addr, &val, sizeof(type))
8634 #define RETURN_UNALIGNED(type, addr) \
8635 return *(type*)(p + offset);
8636 #define WRITE_UNALIGNED(type, addr, val) \
8637 (*(type *)(addr) = (val))
8641 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
8645 MONO_ARCH_SAVE_REGS;
8647 RETURN_UNALIGNED(gpointer, p + offset);
8651 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
8655 MONO_ARCH_SAVE_REGS;
8657 return *(unsigned char*)(p + offset);
8661 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
8665 MONO_ARCH_SAVE_REGS;
8667 RETURN_UNALIGNED(gint16, p + offset);
8671 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
8675 MONO_ARCH_SAVE_REGS;
8677 RETURN_UNALIGNED(gint32, p + offset);
8681 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
8685 MONO_ARCH_SAVE_REGS;
8687 RETURN_UNALIGNED(gint64, p + offset);
8691 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
8695 MONO_ARCH_SAVE_REGS;
8697 *(unsigned char*)(p + offset) = val;
8701 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
8705 MONO_ARCH_SAVE_REGS;
8707 WRITE_UNALIGNED(gpointer, p + offset, val);
8711 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
8715 MONO_ARCH_SAVE_REGS;
8717 WRITE_UNALIGNED(gint16, p + offset, val);
8721 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
8725 MONO_ARCH_SAVE_REGS;
8727 WRITE_UNALIGNED(gint32, p + offset, val);
8731 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
8735 MONO_ARCH_SAVE_REGS;
8737 WRITE_UNALIGNED(gint64, p + offset, val);
8741 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
8743 MONO_ARCH_SAVE_REGS;
8748 return mono_string_new (mono_domain_get (), ptr);
8752 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
8754 MONO_ARCH_SAVE_REGS;
8757 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
8758 g_assert_not_reached ();
8761 return mono_string_new_len (mono_domain_get (), ptr, len);
8765 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
8767 MonoDomain *domain = mono_domain_get ();
8771 MONO_ARCH_SAVE_REGS;
8779 return mono_string_new_utf16 (domain, ptr, len);
8783 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
8785 MonoDomain *domain = mono_domain_get ();
8787 MONO_ARCH_SAVE_REGS;
8790 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
8791 g_assert_not_reached ();
8794 return mono_string_new_utf16 (domain, ptr, len);
8798 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
8800 MONO_ARCH_SAVE_REGS;
8802 return mono_string_from_bstr(ptr);
8806 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
8808 MONO_ARCH_SAVE_REGS;
8810 return mono_string_to_bstr(ptr);
8813 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
8814 #ifdef PLATFORM_WIN32
8816 #define STDCALL __stdcall
8818 #define STDCALL __attribute__((stdcall))
8826 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
8827 int (STDCALL *AddRef)(gpointer pUnk);
8828 int (STDCALL *Release)(gpointer pUnk);
8832 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
8834 MONO_ARCH_SAVE_REGS;
8836 mono_free_bstr (ptr);
8840 ves_icall_System_Runtime_InteropServices_Marshal_AddRef (gpointer pUnk)
8842 MONO_ARCH_SAVE_REGS;
8844 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
8848 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterface (gpointer pUnk, gpointer riid, gpointer* ppv)
8850 MONO_ARCH_SAVE_REGS;
8852 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
8856 ves_icall_System_Runtime_InteropServices_Marshal_Release (gpointer pUnk)
8858 MONO_ARCH_SAVE_REGS;
8860 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
8864 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
8866 MONO_ARCH_SAVE_REGS;
8868 return cominterop_get_com_slot_for_method (m->method);
8872 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
8874 MONO_ARCH_SAVE_REGS;
8876 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
8880 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
8886 MONO_ARCH_SAVE_REGS;
8888 MONO_CHECK_ARG_NULL (rtype);
8891 klass = mono_class_from_mono_type (type);
8892 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
8894 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
8898 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
8899 exc = mono_get_exception_argument ("t", msg);
8901 mono_raise_exception (exc);
8905 return mono_class_native_size (klass, NULL);
8909 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
8914 MONO_ARCH_SAVE_REGS;
8916 MONO_CHECK_ARG_NULL (obj);
8917 MONO_CHECK_ARG_NULL (dst);
8919 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
8923 pa [2] = &delete_old;
8925 mono_runtime_invoke (method, NULL, pa, NULL);
8929 ptr_to_structure (gpointer src, MonoObject *dst)
8934 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
8939 mono_runtime_invoke (method, NULL, pa, NULL);
8943 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
8947 MONO_ARCH_SAVE_REGS;
8949 MONO_CHECK_ARG_NULL (src);
8950 MONO_CHECK_ARG_NULL (dst);
8952 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
8954 if (t->type == MONO_TYPE_VALUETYPE) {
8958 tmp = g_strdup_printf ("Destination is a boxed value type.");
8959 exc = mono_get_exception_argument ("dst", tmp);
8962 mono_raise_exception (exc);
8966 ptr_to_structure (src, dst);
8970 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
8972 MonoDomain *domain = mono_domain_get ();
8975 MONO_ARCH_SAVE_REGS;
8977 MONO_CHECK_ARG_NULL (src);
8978 MONO_CHECK_ARG_NULL (type);
8980 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
8982 ptr_to_structure (src, res);
8988 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
8990 MonoMarshalType *info;
8993 int match_index = -1;
8995 MONO_ARCH_SAVE_REGS;
8997 MONO_CHECK_ARG_NULL (type);
8998 MONO_CHECK_ARG_NULL (field_name);
9000 fname = mono_string_to_utf8 (field_name);
9001 klass = mono_class_from_mono_type (type->type);
9003 while (klass && match_index == -1) {
9004 MonoClassField* field;
9006 gpointer iter = NULL;
9007 while ((field = mono_class_get_fields (klass, &iter))) {
9008 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9010 if (!strcmp (fname, field->name)) {
9017 if (match_index == -1)
9018 klass = klass->parent;
9023 if(match_index == -1) {
9027 /* Get back original class instance */
9028 klass = mono_class_from_mono_type (type->type);
9030 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9031 exc = mono_get_exception_argument ("fieldName", tmp);
9034 mono_raise_exception ((MonoException*)exc);
9037 info = mono_marshal_load_type_info (klass);
9038 return info->fields [match_index].offset;
9042 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9044 MONO_ARCH_SAVE_REGS;
9046 return mono_string_to_utf8 (string);
9050 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9052 MONO_ARCH_SAVE_REGS;
9057 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9058 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9059 res [mono_string_length (string)] = 0;
9065 mono_struct_delete_old (MonoClass *klass, char *ptr)
9067 MonoMarshalType *info;
9070 info = mono_marshal_load_type_info (klass);
9072 for (i = 0; i < info->num_fields; i++) {
9073 MonoMarshalNative ntype;
9074 MonoMarshalConv conv;
9075 MonoType *ftype = info->fields [i].field->type;
9078 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9081 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9082 klass->unicode, &conv);
9084 cpos = ptr + info->fields [i].offset;
9087 case MONO_MARSHAL_CONV_NONE:
9088 if (MONO_TYPE_ISSTRUCT (ftype)) {
9089 mono_struct_delete_old (ftype->data.klass, cpos);
9093 case MONO_MARSHAL_CONV_STR_LPWSTR:
9094 /* We assume this field points inside a MonoString */
9096 case MONO_MARSHAL_CONV_STR_LPSTR:
9097 case MONO_MARSHAL_CONV_STR_LPTSTR:
9098 case MONO_MARSHAL_CONV_STR_BSTR:
9099 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9100 case MONO_MARSHAL_CONV_STR_TBSTR:
9101 mono_marshal_free (*(gpointer *)cpos);
9110 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9114 MONO_ARCH_SAVE_REGS;
9116 MONO_CHECK_ARG_NULL (src);
9117 MONO_CHECK_ARG_NULL (type);
9119 klass = mono_class_from_mono_type (type->type);
9121 mono_struct_delete_old (klass, (char *)src);
9125 /* FIXME: on win32 we should probably use GlobalAlloc(). */
9127 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9131 MONO_ARCH_SAVE_REGS;
9133 if ((gulong)size == 0)
9134 /* This returns a valid pointer for size 0 on MS.NET */
9137 res = g_try_malloc ((gulong)size);
9139 mono_gc_out_of_memory ((gulong)size);
9145 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9147 MONO_ARCH_SAVE_REGS;
9153 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9155 MONO_ARCH_SAVE_REGS;
9157 #ifdef PLATFORM_WIN32
9158 return CoTaskMemAlloc (size);
9160 return g_try_malloc ((gulong)size);
9165 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9167 MONO_ARCH_SAVE_REGS;
9169 #ifdef PLATFORM_WIN32
9170 CoTaskMemFree (ptr);
9177 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9179 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9183 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9185 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9188 /* Only used for COM RCWs */
9190 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
9196 MONO_ARCH_SAVE_REGS;
9198 domain = mono_object_domain (type);
9199 klass = mono_class_from_mono_type (type->type);
9201 /* call mono_object_new_alloc_specific instead of mono_object_new
9202 * because we want to actually create object. mono_object_new checks
9203 * to see if type is import and creates transparent proxy. this method
9204 * is called by the corresponding real proxy to create the real RCW.
9205 * Constructor does not need to be called. Will be called later.
9207 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
9212 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
9214 ves_icall_System_Runtime_InteropServices_Marshal_Release (value);
9219 ves_icall_System_ComObject_Finalizer(MonoComObject* obj)
9223 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
9224 obj->itf_hash = NULL;
9227 #define MONO_IUNKNOWN_INTERFACE_SLOT 0
9230 ves_icall_System_ComObject_FindInterface (MonoComObject* obj, MonoReflectionType* type)
9234 g_assert(obj->itf_hash);
9236 klass = mono_class_from_mono_type (type->type);
9238 return g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)klass->interface_id));
9242 ves_icall_System_ComObject_CacheInterface (MonoComObject* obj, MonoReflectionType* type, gpointer pItf)
9246 g_assert(obj->itf_hash);
9248 klass = mono_class_from_mono_type (type->type);
9250 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)klass->interface_id), pItf);
9254 ves_icall_System_ComObject_GetIUnknown (MonoComObject* obj)
9259 return g_hash_table_lookup (obj->itf_hash, MONO_IUNKNOWN_INTERFACE_SLOT);
9263 ves_icall_System_ComObject_SetIUnknown (MonoComObject* obj, gpointer pUnk)
9266 g_assert(!obj->itf_hash);
9267 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
9268 g_hash_table_insert (obj->itf_hash, MONO_IUNKNOWN_INTERFACE_SLOT, pUnk);
9272 * mono_marshal_is_loading_type_info:
9274 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9278 mono_marshal_is_loading_type_info (MonoClass *klass)
9280 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9282 return g_slist_find (loads_list, klass) != NULL;
9286 * mono_marshal_load_type_info:
9288 * Initialize klass->marshal_info using information from metadata. This function can
9289 * recursively call itself, and the caller is responsible to avoid that by calling
9290 * mono_marshal_is_loading_type_info () beforehand.
9292 * LOCKING: Acquires the loader lock.
9295 mono_marshal_load_type_info (MonoClass* klass)
9298 guint32 native_size = 0, min_align = 1;
9299 MonoMarshalType *info;
9300 MonoClassField* field;
9305 g_assert (klass != NULL);
9307 if (klass->marshal_info)
9308 return klass->marshal_info;
9311 mono_class_init (klass);
9313 mono_loader_lock ();
9315 if (klass->marshal_info) {
9316 mono_marshal_unlock ();
9317 return klass->marshal_info;
9321 * This function can recursively call itself, so we keep the list of classes which are
9322 * under initialization in a TLS list.
9324 g_assert (!mono_marshal_is_loading_type_info (klass));
9325 loads_list = TlsGetValue (load_type_info_tls_id);
9326 loads_list = g_slist_prepend (loads_list, klass);
9327 TlsSetValue (load_type_info_tls_id, loads_list);
9330 while ((field = mono_class_get_fields (klass, &iter))) {
9331 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9333 if (mono_field_is_deleted (field))
9338 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9340 info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9341 info->num_fields = count;
9343 /* Try to find a size for this type in metadata */
9344 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9346 if (klass->parent) {
9347 int parent_size = mono_class_native_size (klass->parent, NULL);
9349 /* Add parent size to real size */
9350 native_size += parent_size;
9351 info->native_size = parent_size;
9356 while ((field = mono_class_get_fields (klass, &iter))) {
9360 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9363 if (mono_field_is_deleted (field))
9365 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9366 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9367 NULL, NULL, &info->fields [j].mspec);
9369 info->fields [j].field = field;
9371 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9372 (strcmp (field->name, "$PRIVATE$") == 0)) {
9373 /* This field is a hack inserted by MCS to empty structures */
9378 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9379 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
9380 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9381 &align, TRUE, klass->unicode);
9382 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9383 min_align = MAX (align, min_align);
9384 info->fields [j].offset = info->native_size;
9385 info->fields [j].offset += align - 1;
9386 info->fields [j].offset &= ~(align - 1);
9387 info->native_size = info->fields [j].offset + size;
9389 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
9390 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9391 &align, TRUE, klass->unicode);
9392 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9393 min_align = MAX (align, min_align);
9394 info->fields [j].offset = field->offset - sizeof (MonoObject);
9395 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
9401 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9402 info->native_size = MAX (native_size, info->native_size);
9405 if (info->native_size & (min_align - 1)) {
9406 info->native_size += min_align - 1;
9407 info->native_size &= ~(min_align - 1);
9410 /* Update the class's blittable info, if the layouts don't match */
9411 if (info->native_size != mono_class_value_size (klass, NULL))
9412 klass->blittable = FALSE;
9414 /* If this is an array type, ensure that we have element info */
9415 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
9416 mono_marshal_load_type_info (klass->element_class);
9419 loads_list = TlsGetValue (load_type_info_tls_id);
9420 loads_list = g_slist_remove (loads_list, klass);
9421 TlsSetValue (load_type_info_tls_id, loads_list);
9423 klass->marshal_info = info;
9425 mono_loader_unlock ();
9427 return klass->marshal_info;
9431 * mono_class_native_size:
9434 * Returns: the native size of an object instance (when marshaled
9435 * to unmanaged code)
9438 mono_class_native_size (MonoClass *klass, guint32 *align)
9440 if (!klass->marshal_info) {
9441 if (mono_marshal_is_loading_type_info (klass))
9444 mono_marshal_load_type_info (klass);
9448 *align = klass->min_align;
9450 return klass->marshal_info->native_size;
9454 * mono_type_native_stack_size:
9455 * @t: the type to return the size it uses on the stack
9457 * Returns: the number of bytes required to hold an instance of this
9458 * type on the native stack
9461 mono_type_native_stack_size (MonoType *t, guint32 *align)
9465 g_assert (t != NULL);
9476 case MONO_TYPE_BOOLEAN:
9477 case MONO_TYPE_CHAR:
9486 case MONO_TYPE_STRING:
9487 case MONO_TYPE_OBJECT:
9488 case MONO_TYPE_CLASS:
9489 case MONO_TYPE_SZARRAY:
9491 case MONO_TYPE_FNPTR:
9492 case MONO_TYPE_ARRAY:
9493 case MONO_TYPE_TYPEDBYREF:
9504 case MONO_TYPE_VALUETYPE: {
9507 if (t->data.klass->enumtype)
9508 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
9510 size = mono_class_native_size (t->data.klass, align);
9511 *align = *align + 3;
9521 g_error ("type 0x%02x unknown", t->type);
9526 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
9527 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
9528 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
9529 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
9532 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
9533 gboolean as_field, gboolean unicode)
9535 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
9538 switch (native_type) {
9539 case MONO_NATIVE_BOOLEAN:
9542 case MONO_NATIVE_I1:
9543 case MONO_NATIVE_U1:
9546 case MONO_NATIVE_I2:
9547 case MONO_NATIVE_U2:
9548 case MONO_NATIVE_VARIANTBOOL:
9551 case MONO_NATIVE_I4:
9552 case MONO_NATIVE_U4:
9553 case MONO_NATIVE_ERROR:
9556 case MONO_NATIVE_I8:
9557 case MONO_NATIVE_U8:
9558 *align = ALIGNMENT(guint64);
9560 case MONO_NATIVE_R4:
9563 case MONO_NATIVE_R8:
9564 *align = ALIGNMENT(double);
9566 case MONO_NATIVE_INT:
9567 case MONO_NATIVE_UINT:
9568 case MONO_NATIVE_LPSTR:
9569 case MONO_NATIVE_LPWSTR:
9570 case MONO_NATIVE_LPTSTR:
9571 case MONO_NATIVE_BSTR:
9572 case MONO_NATIVE_ANSIBSTR:
9573 case MONO_NATIVE_TBSTR:
9574 case MONO_NATIVE_LPARRAY:
9575 case MONO_NATIVE_SAFEARRAY:
9576 case MONO_NATIVE_IUNKNOWN:
9577 case MONO_NATIVE_IDISPATCH:
9578 case MONO_NATIVE_INTERFACE:
9579 case MONO_NATIVE_ASANY:
9580 case MONO_NATIVE_FUNC:
9581 case MONO_NATIVE_LPSTRUCT:
9582 *align = ALIGNMENT(gpointer);
9583 return sizeof (gpointer);
9584 case MONO_NATIVE_STRUCT:
9585 klass = mono_class_from_mono_type (type);
9586 return mono_class_native_size (klass, align);
9587 case MONO_NATIVE_BYVALTSTR: {
9588 int esize = unicode ? 2: 1;
9591 return mspec->data.array_data.num_elem * esize;
9593 case MONO_NATIVE_BYVALARRAY: {
9594 // FIXME: Have to consider ArraySubType
9596 klass = mono_class_from_mono_type (type);
9597 if (klass->element_class == mono_defaults.char_class) {
9598 esize = unicode ? 2 : 1;
9601 esize = mono_class_native_size (klass->element_class, align);
9604 return mspec->data.array_data.num_elem * esize;
9606 case MONO_NATIVE_CUSTOM:
9607 g_assert_not_reached ();
9609 case MONO_NATIVE_CURRENCY:
9610 case MONO_NATIVE_VBBYREFSTR:
9612 g_error ("native type %02x not implemented", native_type);
9615 g_assert_not_reached ();
9620 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
9628 t = &o->vtable->klass->byval_arg;
9635 case MONO_TYPE_BOOLEAN:
9638 case MONO_TYPE_CHAR:
9643 return mono_object_unbox (o);
9645 case MONO_TYPE_STRING:
9646 switch (string_encoding) {
9647 case MONO_NATIVE_LPWSTR:
9648 return mono_string_to_utf16 ((MonoString*)o);
9650 case MONO_NATIVE_LPSTR:
9651 return mono_string_to_lpstr ((MonoString*)o);
9654 g_warning ("marshaling conversion %d not implemented", string_encoding);
9655 g_assert_not_reached ();
9658 case MONO_TYPE_CLASS:
9659 case MONO_TYPE_VALUETYPE: {
9663 MonoBoolean delete_old = FALSE;
9665 klass = t->data.klass;
9667 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
9670 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
9671 klass->blittable || klass->enumtype))
9672 return mono_object_unbox (o);
9674 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
9676 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
9677 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
9681 pa [2] = &delete_old;
9683 mono_runtime_invoke (method, NULL, pa, NULL);
9690 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
9696 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
9704 t = &o->vtable->klass->byval_arg;
9706 case MONO_TYPE_STRING:
9707 switch (string_encoding) {
9708 case MONO_NATIVE_LPWSTR:
9709 case MONO_NATIVE_LPSTR:
9710 mono_marshal_free (ptr);
9713 g_warning ("marshaling conversion %d not implemented", string_encoding);
9714 g_assert_not_reached ();
9717 case MONO_TYPE_CLASS:
9718 case MONO_TYPE_VALUETYPE: {
9719 klass = t->data.klass;
9721 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
9722 klass->blittable || klass->enumtype))
9725 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
9726 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
9732 mono_runtime_invoke (method, NULL, pa, NULL);
9735 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
9736 mono_struct_delete_old (klass, ptr);
9739 mono_marshal_free (ptr);
9748 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
9750 MonoMethodSignature *sig, *csig;
9751 MonoMethodBuilder *mb;
9755 mb = mono_mb_new (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9756 mb->method->slot = -1;
9758 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
9759 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
9761 sig = mono_method_signature (method);
9762 csig = signature_dup (method->klass->image, sig);
9763 csig->generic_param_count = 0;
9765 mono_mb_emit_ldarg (mb, 0);
9766 for (i = 0; i < csig->param_count; i++)
9767 mono_mb_emit_ldarg (mb, i + 1);
9768 mono_mb_emit_managed_call (mb, method, NULL);
9769 mono_mb_emit_byte (mb, CEE_RET);
9771 res = mono_mb_create_method (mb, csig, csig->param_count + 16);