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;
96 delegate_hash_table_add (MonoDelegate *d);
99 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
102 mono_struct_delete_old (MonoClass *klass, char *ptr);
105 mono_marshal_string_to_utf16 (MonoString *s);
108 mono_string_to_lpstr (MonoString *string_obj);
111 mono_string_from_bstr (gpointer bstr);
114 mono_free_bstr (gpointer bstr);
117 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
120 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
123 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
125 static MonoAsyncResult *
126 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
129 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_marshal_xdomain_copy_value (MonoObject *val);
135 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
138 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
141 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
144 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
146 static MonoReflectionType *
147 type_from_handle (MonoType *handle);
150 mono_marshal_set_last_error_windows (int error);
153 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func);
156 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
158 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
160 mono_register_jit_icall (func, name, sig, save);
163 static MonoMethodSignature*
164 signature_dup (MonoImage *image, MonoMethodSignature *sig)
166 MonoMethodSignature *res;
169 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
171 res = mono_mempool_alloc (image->mempool, sigsize);
172 mono_loader_unlock ();
173 memcpy (res, sig, sigsize);
178 static MonoMethodSignature*
179 signature_no_pinvoke (MonoMethod *method)
181 MonoMethodSignature *sig = mono_method_signature (method);
183 sig = signature_dup (method->klass->image, sig);
184 sig->pinvoke = FALSE;
191 * signature_cominterop:
193 * @sig: managed method signature
195 * Returns: the corresponding unmanaged method signature for a managed COM
198 static MonoMethodSignature*
199 signature_cominterop (MonoImage *image, MonoMethodSignature *sig)
201 MonoMethodSignature *res;
204 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
206 if (!MONO_TYPE_IS_VOID (sig->ret))
209 sigsize = sizeof (MonoMethodSignature) + ((param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
211 res = mono_mempool_alloc (image->mempool, sigsize);
212 mono_loader_unlock ();
213 memcpy (res, sig, sigsize);
215 // now move args forward one
216 for (i = sig->param_count-1; i >= 0; i--)
217 res->params[i+1] = sig->params[i];
219 // first arg is interface pointer
220 res->params[0] = &mono_defaults.int_class->byval_arg;
222 // last arg is return type
223 if (!MONO_TYPE_IS_VOID (sig->ret)) {
224 res->params[param_count-1] = mono_metadata_type_dup_mp (image, sig->ret);
225 res->params[param_count-1]->byref = 1;
226 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
230 res->pinvoke = FALSE;
236 res->param_count = param_count;
238 // return type is always int32 (HRESULT)
239 res->ret = &mono_defaults.int32_class->byval_arg;
241 // com is always stdcall
242 res->call_convention = MONO_CALL_STDCALL;
248 * cominterop_get_function_pointer:
249 * @itf: a pointer to the COM interface
250 * @slot: the vtable slot of the method pointer to return
252 * Returns: the unmanaged vtable function pointer from the interface
255 cominterop_get_function_pointer (gpointer itf, int slot)
258 func = *((*(gpointer**)itf)+slot);
263 * cominterop_get_com_slot_for_method:
266 * Returns: the method's slot in the COM interface vtable
269 cominterop_get_com_slot_for_method (MonoMethod* method)
271 static MonoClass *interface_type_attribute = NULL;
272 MonoInterfaceTypeAttribute* itf_attr = NULL;
273 MonoCustomAttrInfo *cinfo = NULL;
275 guint32 slot = method->slot;
277 MonoClass *ic = method->klass;
280 ifaces = mono_class_get_implemented_interfaces (method->klass);
283 for (i = 0; i < ifaces->len; ++i) {
284 ic = g_ptr_array_index (ifaces, i);
285 offset = method->klass->interface_offsets[ic->interface_id];
286 if (method->slot >= offset && method->slot < offset + ic->method.count) {
291 g_ptr_array_free (ifaces, TRUE);
294 if (!interface_type_attribute)
295 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
296 cinfo = mono_custom_attrs_from_class (ic);
298 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
300 mono_custom_attrs_free (cinfo);
303 if (itf_attr && itf_attr->intType == 1)
304 offset = 3; /* 3 methods in IUnknown*/
306 offset = 7; /* 7 methods in IDispatch*/
308 return slot + offset;
312 * cominterop_get_method_interface:
313 * @method: method being called
315 * Returns: the Type on which the method is defined on
317 static MonoReflectionType*
318 cominterop_get_method_interface (MonoMethod* method)
321 MonoClass *ic = method->klass;
323 MonoReflectionType* rt = NULL;
325 ifaces = mono_class_get_implemented_interfaces (method->klass);
328 for (i = 0; i < ifaces->len; ++i) {
329 ic = g_ptr_array_index (ifaces, i);
330 offset = method->klass->interface_offsets[ic->interface_id];
331 if (method->slot >= offset && method->slot < offset + ic->method.count)
335 g_ptr_array_free (ifaces, TRUE);
339 MonoType* t = mono_class_get_type (ic);
340 rt = mono_type_get_object (mono_domain_get(), t);
347 mono_marshal_init (void)
349 static gboolean module_initialized = FALSE;
351 if (!module_initialized) {
352 module_initialized = TRUE;
353 InitializeCriticalSection (&marshal_mutex);
354 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
355 last_error_tls_id = TlsAlloc ();
357 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
358 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
359 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
360 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
361 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
362 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
363 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
364 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
365 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
366 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
367 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
368 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
369 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
370 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
371 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
372 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
373 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
374 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
375 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
376 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
377 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
378 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
379 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
380 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
381 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
382 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
383 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
384 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
385 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
386 register_icall (g_free, "g_free", "void ptr", FALSE);
387 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
388 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
389 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
390 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
391 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
392 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
393 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
394 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
395 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
396 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
397 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
398 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
399 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
400 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
401 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
402 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "object ptr", FALSE);
403 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
408 mono_marshal_cleanup (void)
410 g_hash_table_destroy (wrapper_hash);
411 TlsFree (last_error_tls_id);
412 DeleteCriticalSection (&marshal_mutex);
415 MonoClass *byte_array_class;
416 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
417 static MonoMethod *method_set_context, *method_get_context;
418 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
421 mono_remoting_marshal_init (void)
425 static gboolean module_initialized = FALSE;
427 if (!module_initialized) {
428 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
429 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
430 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
431 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
433 klass = mono_defaults.real_proxy_class;
434 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
436 klass = mono_defaults.exception_class;
437 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
439 klass = mono_defaults.thread_class;
440 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
442 klass = mono_defaults.appdomain_class;
443 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
444 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
446 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
447 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
449 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
450 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
452 module_initialized = TRUE;
457 mono_delegate_to_ftnptr (MonoDelegate *delegate)
459 MonoMethod *method, *wrapper;
465 if (delegate->delegate_trampoline)
466 return delegate->delegate_trampoline;
468 klass = ((MonoObject *)delegate)->vtable->klass;
469 g_assert (klass->delegate);
471 method = delegate->method_info->method;
473 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
475 delegate->delegate_trampoline = mono_compile_method (wrapper);
477 // Add the delegate to the delegate hash table
478 delegate_hash_table_add (delegate);
480 /* when the object is collected, collect the dunamic method, too */
481 mono_object_register_finalizer ((MonoObject*)delegate);
483 return delegate->delegate_trampoline;
486 static GHashTable *delegate_hash_table;
489 delegate_hash_table_new (void) {
490 return g_hash_table_new (NULL, NULL);
494 delegate_hash_table_remove (MonoDelegate *d)
496 mono_marshal_lock ();
497 if (delegate_hash_table == NULL)
498 delegate_hash_table = delegate_hash_table_new ();
499 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
500 mono_marshal_unlock ();
504 delegate_hash_table_add (MonoDelegate *d)
506 mono_marshal_lock ();
507 if (delegate_hash_table == NULL)
508 delegate_hash_table = delegate_hash_table_new ();
509 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
510 mono_marshal_unlock ();
514 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
518 mono_marshal_lock ();
519 if (delegate_hash_table == NULL)
520 delegate_hash_table = delegate_hash_table_new ();
522 d = g_hash_table_lookup (delegate_hash_table, ftn);
523 mono_marshal_unlock ();
525 /* This is a native function, so construct a delegate for it */
526 static MonoClass *UnmanagedFunctionPointerAttribute;
527 MonoMethodSignature *sig;
529 MonoMarshalSpec **mspecs;
530 MonoCustomAttrInfo *cinfo;
531 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
532 MonoMethod *invoke = mono_get_delegate_invoke (klass);
533 MonoMethodPInvoke piinfo;
536 memset (&piinfo, 0, sizeof (piinfo));
537 if (!UnmanagedFunctionPointerAttribute)
538 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
540 /* The attribute is only available in Net 2.0 */
541 if (UnmanagedFunctionPointerAttribute) {
543 * The pinvoke attributes are stored in a real custom attribute so we have to
546 cinfo = mono_custom_attrs_from_class (klass);
548 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
550 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
553 mono_custom_attrs_free (cinfo);
557 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
558 mono_method_get_marshal_info (invoke, mspecs);
559 /* Freed below so don't alloc from mempool */
560 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
563 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
565 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
567 mono_metadata_free_marshal_spec (mspecs [i]);
571 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
572 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
575 if (d->object.vtable->domain != mono_domain_get ())
576 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
582 mono_delegate_free_ftnptr (MonoDelegate *delegate)
587 delegate_hash_table_remove (delegate);
589 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
591 if (!delegate->target) {
592 /* The wrapper method is shared between delegates -> no need to free it */
597 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
600 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
605 mono_array_to_savearray (MonoArray *array)
610 g_assert_not_reached ();
615 mono_array_to_lparray (MonoArray *array)
620 /* fixme: maybe we need to make a copy */
621 return array->vector;
625 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
627 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
629 if (elclass == mono_defaults.byte_class) {
630 GError *error = NULL;
634 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
637 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
641 g_error_free (error);
644 g_assert_not_reached ();
648 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
650 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
652 if (elclass == mono_defaults.byte_class) {
654 GError *error = NULL;
656 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
658 MonoException *exc = mono_get_exception_argument ("string", error->message);
659 g_error_free (error);
660 mono_raise_exception (exc);
663 memcpy (native_arr, as, MIN (strlen (as), elnum));
667 g_assert_not_reached ();
671 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
673 GError *error = NULL;
683 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
685 if (items_written > mono_stringbuilder_capacity (sb))
686 items_written = mono_stringbuilder_capacity (sb);
689 if (! sb->str || sb->str == sb->cached_str) {
690 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
691 sb->cached_str = NULL;
694 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
695 sb->length = items_written;
697 g_error_free (error);
703 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
710 g_assert (mono_string_chars (sb->str) == text);
712 for (len = 0; text [len] != 0; ++len)
719 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
721 GError *error = NULL;
728 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
730 * The sb could have been allocated with the default capacity and be empty.
731 * we need to alloc a buffer of the default capacity in this case.
733 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
734 sb->cached_str = NULL;
737 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
739 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
741 g_error_free (error);
742 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
745 memcpy (res, tmp, sb->length + 1);
753 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
761 * The stringbuilder might not have ownership of this string. If this is
762 * the case, we must duplicate the string, so that we don't munge immutable
765 if (sb->str == sb->cached_str) {
767 * The sb could have been allocated with the default capacity and be empty.
768 * we need to alloc a buffer of the default capacity in this case.
770 if (sb->str->length == 0)
771 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
773 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
774 sb->cached_str = NULL;
777 return mono_string_chars (sb->str);
781 mono_string_to_lpstr (MonoString *s)
783 #ifdef PLATFORM_WIN32
786 GError *error = NULL;
792 as = CoTaskMemAlloc (1);
797 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
799 MonoException *exc = mono_get_exception_argument ("string", error->message);
800 g_error_free (error);
801 mono_raise_exception(exc);
805 as = CoTaskMemAlloc (len + 1);
806 memcpy (as, tmp, len + 1);
810 return mono_string_to_utf8 (s);
815 mono_string_to_ansibstr (MonoString *string_obj)
817 g_error ("UnmanagedMarshal.BStr is not implemented.");
822 mono_string_to_bstr (MonoString *string_obj)
824 #ifdef PLATFORM_WIN32
825 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
827 g_error ("UnmanagedMarshal.BStr is not implemented.");
833 mono_string_from_bstr (gpointer bstr)
835 #ifdef PLATFORM_WIN32
836 MonoDomain *domain = mono_domain_get ();
837 return mono_string_new_utf16 (domain, bstr, SysStringLen (bstr));
839 g_error ("UnmanagedMarshal.BStr is not implemented.");
845 mono_free_bstr (gpointer bstr)
847 #ifdef PLATFORM_WIN32
848 SysFreeString ((BSTR)bstr);
850 g_error ("Free BSTR is not implemented.");
855 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
860 g_assert (dst != NULL);
863 memset (dst, 0, size);
868 s = mono_string_to_utf8 (src);
869 len = MIN (size, strlen (s));
870 memcpy (dst, s, len);
873 *((char *)dst + size - 1) = 0;
877 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
881 g_assert (dst != NULL);
885 memset (dst, 0, size * 2);
889 len = MIN (size, (mono_string_length (src)));
890 memcpy (dst, mono_string_chars (src), len * 2);
892 *((gunichar2 *)dst + len - 1) = 0;
896 mono_mb_free (MonoMethodBuilder *mb)
898 g_list_free (mb->locals_list);
908 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
910 MonoMethodBuilder *mb;
913 g_assert (klass != NULL);
914 g_assert (name != NULL);
916 mb = g_new0 (MonoMethodBuilder, 1);
918 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
922 m->wrapper_type = type;
924 mb->name = g_strdup (name);
926 mb->code = g_malloc (mb->code_size);
932 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
936 g_assert (mb != NULL);
937 g_assert (type != NULL);
940 mb->locals_list = g_list_append (mb->locals_list, type);
947 * mono_mb_create_method:
949 * Create a MonoMethod from this method builder.
950 * Returns: the newly created method.
952 * LOCKING: Assumes the loader lock is held.
955 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
957 MonoMethodHeader *header;
958 MonoMethodWrapper *mw;
964 g_assert (mb != NULL);
966 mp = mb->method->klass->image->mempool;
971 method->name = mb->name;
972 method->dynamic = TRUE;
974 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
975 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
977 header->code = mb->code;
979 /* Realloc the method info into a mempool */
981 method = mono_mempool_alloc (mp, sizeof (MonoMethodWrapper));
982 memcpy (method, mb->method, sizeof (MonoMethodWrapper));
984 method->name = mono_mempool_strdup (mp, mb->name);
986 ((MonoMethodNormal *)method)->header = header = (MonoMethodHeader *)
987 mono_mempool_alloc0 (mp, sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
989 header->code = mono_mempool_alloc (mp, mb->pos);
990 memcpy ((char*)header->code, mb->code, mb->pos);
996 header->max_stack = max_stack;
998 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
999 header->locals [i] = (MonoType *)l->data;
1002 method->signature = signature;
1004 header->code_size = mb->pos;
1005 header->num_locals = mb->locals;
1007 mw = (MonoMethodWrapper*) mb->method;
1008 i = g_list_length (mw->method_data);
1012 l = g_list_reverse (mw->method_data);
1013 if (method->dynamic)
1014 data = g_malloc (sizeof (gpointer) * (i + 1));
1016 data = mono_mempool_alloc (mp, sizeof (gpointer) * (i + 1));
1017 /* store the size in the first element */
1018 data [0] = GUINT_TO_POINTER (i);
1020 for (tmp = l; tmp; tmp = tmp->next) {
1021 data [i++] = tmp->data;
1025 ((MonoMethodWrapper*)method)->method_data = data;
1028 static int total_code = 0;
1029 static int total_alloc = 0;
1030 total_code += mb->pos;
1031 total_alloc += mb->code_size;
1032 g_print ("code size: %d of %d (allocated: %d)\n", mb->pos, total_code, total_alloc);
1035 #ifdef DEBUG_RUNTIME_CODE
1036 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (method, TRUE));
1037 printf ("%s\n", mono_disasm_code (&marshal_dh, method, mb->code, mb->code + mb->pos));
1044 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
1046 MonoMethodWrapper *mw;
1048 g_assert (mb != NULL);
1050 mw = (MonoMethodWrapper *)mb->method;
1052 /* one O(n) is enough */
1053 mw->method_data = g_list_prepend (mw->method_data, data);
1055 return g_list_length (mw->method_data);
1059 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
1061 mb->code [pos] = value & 0xff;
1062 mb->code [pos + 1] = (value >> 8) & 0xff;
1063 mb->code [pos + 2] = (value >> 16) & 0xff;
1064 mb->code [pos + 3] = (value >> 24) & 0xff;
1068 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
1070 *((gint8 *)(&mb->code [pos])) = value;
1074 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
1076 if (mb->pos >= mb->code_size) {
1077 mb->code_size += mb->code_size >> 1;
1078 mb->code = g_realloc (mb->code, mb->code_size);
1081 mb->code [mb->pos++] = op;
1085 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
1087 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1088 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1091 mono_mb_emit_icon (mb, offset);
1092 mono_mb_emit_byte (mb, CEE_ADD);
1097 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1100 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1101 mono_mb_emit_byte (mb, CEE_LDIND_I);
1102 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1103 mono_mb_emit_byte (mb, CEE_ADD);
1104 mono_mb_emit_byte (mb, CEE_LDIND_I);
1105 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1106 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1107 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1108 mono_mb_emit_byte (mb, branch_code);
1110 mono_mb_emit_i4 (mb, 0);
1115 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1118 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1119 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1120 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1121 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1122 mono_mb_emit_icon (mb, -1);
1123 mono_mb_emit_byte (mb, branch_code);
1125 mono_mb_emit_i4 (mb, 0);
1130 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
1132 if ((mb->pos + 4) >= mb->code_size) {
1133 mb->code_size += mb->code_size >> 1;
1134 mb->code = g_realloc (mb->code, mb->code_size);
1137 mono_mb_patch_addr (mb, mb->pos, data);
1142 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
1144 if ((mb->pos + 2) >= mb->code_size) {
1145 mb->code_size += mb->code_size >> 1;
1146 mb->code = g_realloc (mb->code, mb->code_size);
1149 mb->code [mb->pos] = data & 0xff;
1150 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
1155 mono_mb_emit_op (MonoMethodBuilder *mb, guint8 op, gpointer data)
1157 mono_mb_emit_byte (mb, op);
1158 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, data));
1162 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
1164 mono_mb_emit_op (mb, CEE_LDSTR, str);
1168 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
1171 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
1172 } else if (argnum < 256) {
1173 mono_mb_emit_byte (mb, CEE_LDARG_S);
1174 mono_mb_emit_byte (mb, argnum);
1176 mono_mb_emit_byte (mb, CEE_PREFIX1);
1177 mono_mb_emit_byte (mb, CEE_LDARG);
1178 mono_mb_emit_i2 (mb, argnum);
1183 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
1186 mono_mb_emit_byte (mb, CEE_LDARGA_S);
1187 mono_mb_emit_byte (mb, argnum);
1189 mono_mb_emit_byte (mb, CEE_PREFIX1);
1190 mono_mb_emit_byte (mb, CEE_LDARGA);
1191 mono_mb_emit_i2 (mb, argnum);
1196 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
1199 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
1200 mono_mb_emit_byte (mb, locnum);
1202 mono_mb_emit_byte (mb, CEE_PREFIX1);
1203 mono_mb_emit_byte (mb, CEE_LDLOCA);
1204 mono_mb_emit_i2 (mb, locnum);
1209 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
1212 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
1213 } else if (num < 256) {
1214 mono_mb_emit_byte (mb, CEE_LDLOC_S);
1215 mono_mb_emit_byte (mb, num);
1217 mono_mb_emit_byte (mb, CEE_PREFIX1);
1218 mono_mb_emit_byte (mb, CEE_LDLOC);
1219 mono_mb_emit_i2 (mb, num);
1224 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
1227 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
1228 } else if (num < 256) {
1229 mono_mb_emit_byte (mb, CEE_STLOC_S);
1230 mono_mb_emit_byte (mb, num);
1232 mono_mb_emit_byte (mb, CEE_PREFIX1);
1233 mono_mb_emit_byte (mb, CEE_STLOC);
1234 mono_mb_emit_i2 (mb, num);
1239 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
1241 if (value >= -1 && value < 8) {
1242 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
1243 } else if (value >= -128 && value <= 127) {
1244 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
1245 mono_mb_emit_byte (mb, value);
1247 mono_mb_emit_byte (mb, CEE_LDC_I4);
1248 mono_mb_emit_i4 (mb, value);
1253 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
1256 mono_mb_emit_byte (mb, op);
1258 mono_mb_emit_i4 (mb, 0);
1263 mono_mb_emit_short_branch (MonoMethodBuilder *mb, guint8 op)
1266 mono_mb_emit_byte (mb, op);
1268 mono_mb_emit_byte (mb, 0);
1274 mono_mb_patch_branch (MonoMethodBuilder *mb, guint32 pos)
1276 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1280 mono_mb_patch_short_branch (MonoMethodBuilder *mb, guint32 pos)
1282 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
1286 mono_mb_emit_ptr (MonoMethodBuilder *mb, gpointer ptr)
1288 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1289 mono_mb_emit_op (mb, CEE_MONO_LDPTR, ptr);
1293 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
1295 mono_mb_emit_op (mb, CEE_CALLI, sig);
1299 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
1301 mono_mb_emit_op (mb, CEE_CALL, method);
1305 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
1307 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1308 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1309 mono_mb_emit_ptr (mb, func);
1310 mono_mb_emit_calli (mb, sig);
1311 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1312 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1316 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
1318 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1319 mono_mb_emit_op (mb, CEE_MONO_ICALL, func);
1323 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1325 // get function pointer from 1st arg, the COM interface pointer
1326 mono_mb_emit_ldarg (mb, 0);
1327 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1328 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1330 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1331 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
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_exception_full (MonoMethodBuilder *mb, const char *exc_nspace, const char *exc_name, const char *msg)
1340 MonoMethod *ctor = NULL;
1342 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, exc_nspace, exc_name);
1343 mono_class_init (mme);
1344 ctor = mono_class_get_method_from_name (mme, ".ctor", 0);
1346 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
1348 mono_mb_emit_byte (mb, CEE_DUP);
1349 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
1350 mono_mb_emit_ldstr (mb, (char*)msg);
1351 mono_mb_emit_byte (mb, CEE_STIND_REF);
1353 mono_mb_emit_byte (mb, CEE_THROW);
1357 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
1359 mono_mb_emit_exception_full (mb, "System", exc_name, msg);
1363 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1365 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1369 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
1371 mono_mb_emit_ldloc (mb, local);
1372 mono_mb_emit_icon (mb, incr);
1373 mono_mb_emit_byte (mb, CEE_ADD);
1374 mono_mb_emit_stloc (mb, local);
1378 mono_type_to_ldind (MonoType *type)
1384 switch (type->type) {
1386 return CEE_LDIND_I1;
1388 case MONO_TYPE_BOOLEAN:
1389 return CEE_LDIND_U1;
1391 return CEE_LDIND_I2;
1393 case MONO_TYPE_CHAR:
1394 return CEE_LDIND_U2;
1396 return CEE_LDIND_I4;
1398 return CEE_LDIND_U4;
1402 case MONO_TYPE_FNPTR:
1404 case MONO_TYPE_CLASS:
1405 case MONO_TYPE_STRING:
1406 case MONO_TYPE_OBJECT:
1407 case MONO_TYPE_SZARRAY:
1408 case MONO_TYPE_ARRAY:
1409 return CEE_LDIND_REF;
1412 return CEE_LDIND_I8;
1414 return CEE_LDIND_R4;
1416 return CEE_LDIND_R8;
1417 case MONO_TYPE_VALUETYPE:
1418 if (type->data.klass->enumtype) {
1419 type = type->data.klass->enum_basetype;
1423 case MONO_TYPE_TYPEDBYREF:
1425 case MONO_TYPE_GENERICINST:
1426 type = &type->data.generic_class->container_class->byval_arg;
1429 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1435 mono_type_to_stind (MonoType *type)
1441 switch (type->type) {
1444 case MONO_TYPE_BOOLEAN:
1445 return CEE_STIND_I1;
1448 case MONO_TYPE_CHAR:
1449 return CEE_STIND_I2;
1452 return CEE_STIND_I4;
1456 case MONO_TYPE_FNPTR:
1458 case MONO_TYPE_CLASS:
1459 case MONO_TYPE_STRING:
1460 case MONO_TYPE_OBJECT:
1461 case MONO_TYPE_SZARRAY:
1462 case MONO_TYPE_ARRAY:
1463 return CEE_STIND_REF;
1466 return CEE_STIND_I8;
1468 return CEE_STIND_R4;
1470 return CEE_STIND_R8;
1471 case MONO_TYPE_VALUETYPE:
1472 if (type->data.klass->enumtype) {
1473 type = type->data.klass->enum_basetype;
1477 case MONO_TYPE_TYPEDBYREF:
1479 case MONO_TYPE_GENERICINST:
1480 type = &type->data.generic_class->container_class->byval_arg;
1483 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1489 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1492 case MONO_MARSHAL_CONV_BOOL_I4:
1493 mono_mb_emit_ldloc (mb, 1);
1494 mono_mb_emit_ldloc (mb, 0);
1495 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1496 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1497 mono_mb_emit_byte (mb, 3);
1498 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1499 mono_mb_emit_byte (mb, CEE_BR_S);
1500 mono_mb_emit_byte (mb, 1);
1501 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1502 mono_mb_emit_byte (mb, CEE_STIND_I1);
1504 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_ldloc (mb, 0);
1507 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1508 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1509 mono_mb_emit_byte (mb, 3);
1510 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1511 mono_mb_emit_byte (mb, CEE_BR_S);
1512 mono_mb_emit_byte (mb, 1);
1513 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1514 mono_mb_emit_byte (mb, CEE_STIND_I1);
1516 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1517 MonoClass *eklass = NULL;
1520 if (type->type == MONO_TYPE_SZARRAY) {
1521 eklass = type->data.klass;
1523 g_assert_not_reached ();
1526 esize = mono_class_native_size (eklass, NULL);
1528 /* create a new array */
1529 mono_mb_emit_ldloc (mb, 1);
1530 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1531 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1532 mono_mb_emit_byte (mb, CEE_STIND_I);
1534 if (eklass->blittable) {
1535 /* copy the elements */
1536 mono_mb_emit_ldloc (mb, 1);
1537 mono_mb_emit_byte (mb, CEE_LDIND_I);
1538 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1539 mono_mb_emit_byte (mb, CEE_ADD);
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1542 mono_mb_emit_byte (mb, CEE_PREFIX1);
1543 mono_mb_emit_byte (mb, CEE_CPBLK);
1546 int array_var, src_var, dst_var, index_var;
1547 guint32 label2, label3;
1549 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1550 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1551 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1554 mono_mb_emit_ldloc (mb, 1);
1555 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1556 mono_mb_emit_stloc (mb, array_var);
1558 /* save the old src pointer */
1559 mono_mb_emit_ldloc (mb, 0);
1560 mono_mb_emit_stloc (mb, src_var);
1561 /* save the old dst pointer */
1562 mono_mb_emit_ldloc (mb, 1);
1563 mono_mb_emit_stloc (mb, dst_var);
1565 /* Emit marshalling loop */
1566 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1567 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1568 mono_mb_emit_stloc (mb, index_var);
1572 mono_mb_emit_ldloc (mb, index_var);
1573 mono_mb_emit_ldloc (mb, array_var);
1574 mono_mb_emit_byte (mb, CEE_LDLEN);
1575 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1577 /* src is already set */
1580 mono_mb_emit_ldloc (mb, array_var);
1581 mono_mb_emit_ldloc (mb, index_var);
1582 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1583 mono_mb_emit_stloc (mb, 1);
1585 /* Do the conversion */
1586 emit_struct_conv (mb, eklass, TRUE);
1589 mono_mb_emit_add_to_local (mb, index_var, 1);
1591 mono_mb_emit_byte (mb, CEE_BR);
1592 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
1594 mono_mb_patch_branch (mb, label3);
1596 /* restore the old src pointer */
1597 mono_mb_emit_ldloc (mb, src_var);
1598 mono_mb_emit_stloc (mb, 0);
1599 /* restore the old dst pointer */
1600 mono_mb_emit_ldloc (mb, dst_var);
1601 mono_mb_emit_stloc (mb, 1);
1605 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1606 MonoClass *eclass = mono_defaults.char_class;
1608 /* create a new array */
1609 mono_mb_emit_ldloc (mb, 1);
1610 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1611 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1612 mono_mb_emit_byte (mb, CEE_STIND_REF);
1614 mono_mb_emit_ldloc (mb, 1);
1615 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1616 mono_mb_emit_ldloc (mb, 0);
1617 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1618 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1619 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1622 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1623 mono_mb_emit_ldloc (mb, 1);
1624 mono_mb_emit_ldloc (mb, 0);
1625 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1626 mono_mb_emit_byte (mb, CEE_STIND_REF);
1628 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1629 mono_mb_emit_ldloc (mb, 1);
1630 mono_mb_emit_ldloc (mb, 0);
1631 mono_mb_emit_icall (mb, mono_string_from_utf16);
1632 mono_mb_emit_byte (mb, CEE_STIND_REF);
1634 case MONO_MARSHAL_CONV_STR_LPTSTR:
1635 case MONO_MARSHAL_CONV_STR_LPSTR:
1636 mono_mb_emit_ldloc (mb, 1);
1637 mono_mb_emit_ldloc (mb, 0);
1638 mono_mb_emit_byte (mb, CEE_LDIND_I);
1639 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1640 mono_mb_emit_byte (mb, CEE_STIND_REF);
1642 case MONO_MARSHAL_CONV_STR_LPWSTR:
1643 mono_mb_emit_ldloc (mb, 1);
1644 mono_mb_emit_ldloc (mb, 0);
1645 mono_mb_emit_byte (mb, CEE_LDIND_I);
1646 mono_mb_emit_icall (mb, mono_string_from_utf16);
1647 mono_mb_emit_byte (mb, CEE_STIND_REF);
1649 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1650 MonoClass *klass = mono_class_from_mono_type (type);
1651 int src_var, dst_var;
1653 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1654 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1656 /* *dst = new object */
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1659 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1660 mono_mb_emit_byte (mb, CEE_STIND_REF);
1662 /* save the old src pointer */
1663 mono_mb_emit_ldloc (mb, 0);
1664 mono_mb_emit_stloc (mb, src_var);
1665 /* save the old dst pointer */
1666 mono_mb_emit_ldloc (mb, 1);
1667 mono_mb_emit_stloc (mb, dst_var);
1669 /* dst = pointer to newly created object data */
1670 mono_mb_emit_ldloc (mb, 1);
1671 mono_mb_emit_byte (mb, CEE_LDIND_I);
1672 mono_mb_emit_icon (mb, sizeof (MonoObject));
1673 mono_mb_emit_byte (mb, CEE_ADD);
1674 mono_mb_emit_stloc (mb, 1);
1676 emit_struct_conv (mb, klass, TRUE);
1678 /* restore the old src pointer */
1679 mono_mb_emit_ldloc (mb, src_var);
1680 mono_mb_emit_stloc (mb, 0);
1681 /* restore the old dst pointer */
1682 mono_mb_emit_ldloc (mb, dst_var);
1683 mono_mb_emit_stloc (mb, 1);
1686 case MONO_MARSHAL_CONV_DEL_FTN: {
1687 MonoClass *klass = mono_class_from_mono_type (type);
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1691 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1692 mono_mb_emit_ldloc (mb, 0);
1693 mono_mb_emit_byte (mb, CEE_LDIND_I);
1694 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1695 mono_mb_emit_byte (mb, CEE_STIND_REF);
1698 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1699 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1701 case MONO_MARSHAL_CONV_STR_BSTR:
1702 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1703 case MONO_MARSHAL_CONV_STR_TBSTR:
1704 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1706 g_warning ("marshaling conversion %d not implemented", conv);
1707 g_assert_not_reached ();
1712 conv_to_icall (MonoMarshalConv conv)
1715 case MONO_MARSHAL_CONV_STR_LPWSTR:
1716 return mono_marshal_string_to_utf16;
1717 case MONO_MARSHAL_CONV_LPWSTR_STR:
1718 return mono_string_from_utf16;
1719 case MONO_MARSHAL_CONV_LPSTR_STR:
1720 return mono_string_new_wrapper;
1721 case MONO_MARSHAL_CONV_STR_LPTSTR:
1722 case MONO_MARSHAL_CONV_STR_LPSTR:
1723 return mono_string_to_lpstr;
1724 case MONO_MARSHAL_CONV_STR_BSTR:
1725 return mono_string_to_bstr;
1726 case MONO_MARSHAL_CONV_BSTR_STR:
1727 return mono_string_from_bstr;
1728 case MONO_MARSHAL_CONV_STR_TBSTR:
1729 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1730 return mono_string_to_ansibstr;
1731 case MONO_MARSHAL_CONV_SB_LPSTR:
1732 case MONO_MARSHAL_CONV_SB_LPTSTR:
1733 return mono_string_builder_to_utf8;
1734 case MONO_MARSHAL_CONV_SB_LPWSTR:
1735 return mono_string_builder_to_utf16;
1736 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1737 return mono_array_to_savearray;
1738 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1739 return mono_array_to_lparray;
1740 case MONO_MARSHAL_CONV_DEL_FTN:
1741 return mono_delegate_to_ftnptr;
1742 case MONO_MARSHAL_CONV_FTN_DEL:
1743 return mono_ftnptr_to_delegate;
1744 case MONO_MARSHAL_CONV_LPSTR_SB:
1745 case MONO_MARSHAL_CONV_LPTSTR_SB:
1746 return mono_string_utf8_to_builder;
1747 case MONO_MARSHAL_CONV_LPWSTR_SB:
1748 return mono_string_utf16_to_builder;
1749 case MONO_MARSHAL_FREE_ARRAY:
1750 return mono_marshal_free_array;
1751 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1752 return mono_string_to_byvalstr;
1753 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1754 return mono_string_to_byvalwstr;
1756 g_assert_not_reached ();
1763 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1768 case MONO_MARSHAL_CONV_BOOL_I4:
1769 mono_mb_emit_ldloc (mb, 1);
1770 mono_mb_emit_ldloc (mb, 0);
1771 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1772 mono_mb_emit_byte (mb, CEE_STIND_I4);
1774 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1775 mono_mb_emit_ldloc (mb, 1);
1776 mono_mb_emit_ldloc (mb, 0);
1777 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1778 mono_mb_emit_byte (mb, CEE_NEG);
1779 mono_mb_emit_byte (mb, CEE_STIND_I2);
1781 case MONO_MARSHAL_CONV_STR_LPWSTR:
1782 case MONO_MARSHAL_CONV_STR_LPSTR:
1783 case MONO_MARSHAL_CONV_STR_LPTSTR:
1784 case MONO_MARSHAL_CONV_STR_BSTR:
1785 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1786 case MONO_MARSHAL_CONV_STR_TBSTR: {
1789 /* free space if free == true */
1790 mono_mb_emit_ldloc (mb, 2);
1791 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1792 mono_mb_emit_ldloc (mb, 1);
1793 mono_mb_emit_byte (mb, CEE_LDIND_I);
1794 mono_mb_emit_icall (mb, g_free);
1795 mono_mb_patch_short_branch (mb, pos);
1797 mono_mb_emit_ldloc (mb, 1);
1798 mono_mb_emit_ldloc (mb, 0);
1799 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1800 mono_mb_emit_icall (mb, conv_to_icall (conv));
1801 mono_mb_emit_byte (mb, CEE_STIND_I);
1804 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1805 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1806 case MONO_MARSHAL_CONV_DEL_FTN:
1807 mono_mb_emit_ldloc (mb, 1);
1808 mono_mb_emit_ldloc (mb, 0);
1809 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1810 mono_mb_emit_icall (mb, conv_to_icall (conv));
1811 mono_mb_emit_byte (mb, CEE_STIND_I);
1813 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1814 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1817 mono_mb_emit_ldloc (mb, 1); /* dst */
1818 mono_mb_emit_ldloc (mb, 0);
1819 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1820 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1821 mono_mb_emit_icall (mb, conv_to_icall (conv));
1824 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1825 MonoClass *eklass = NULL;
1828 if (type->type == MONO_TYPE_SZARRAY) {
1829 eklass = type->data.klass;
1831 g_assert_not_reached ();
1834 if (eklass->valuetype)
1835 esize = mono_class_native_size (eklass, NULL);
1837 esize = sizeof (gpointer);
1839 mono_mb_emit_ldloc (mb, 0);
1840 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1841 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1843 if (eklass->blittable) {
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1847 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1848 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1849 mono_mb_emit_byte (mb, CEE_PREFIX1);
1850 mono_mb_emit_byte (mb, CEE_CPBLK);
1852 int array_var, src_var, dst_var, index_var;
1853 guint32 label2, label3;
1855 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1856 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1857 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1860 mono_mb_emit_ldloc (mb, 0);
1861 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1862 mono_mb_emit_stloc (mb, array_var);
1864 /* save the old src pointer */
1865 mono_mb_emit_ldloc (mb, 0);
1866 mono_mb_emit_stloc (mb, src_var);
1867 /* save the old dst pointer */
1868 mono_mb_emit_ldloc (mb, 1);
1869 mono_mb_emit_stloc (mb, dst_var);
1871 /* Emit marshalling loop */
1872 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1873 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1874 mono_mb_emit_stloc (mb, index_var);
1878 mono_mb_emit_ldloc (mb, index_var);
1879 mono_mb_emit_ldloc (mb, array_var);
1880 mono_mb_emit_byte (mb, CEE_LDLEN);
1881 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1884 mono_mb_emit_ldloc (mb, array_var);
1885 mono_mb_emit_ldloc (mb, index_var);
1886 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1887 mono_mb_emit_stloc (mb, 0);
1889 /* dst is already set */
1891 /* Do the conversion */
1892 emit_struct_conv (mb, eklass, FALSE);
1895 mono_mb_emit_add_to_local (mb, index_var, 1);
1897 mono_mb_emit_byte (mb, CEE_BR);
1898 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
1900 mono_mb_patch_branch (mb, label3);
1902 /* restore the old src pointer */
1903 mono_mb_emit_ldloc (mb, src_var);
1904 mono_mb_emit_stloc (mb, 0);
1905 /* restore the old dst pointer */
1906 mono_mb_emit_ldloc (mb, dst_var);
1907 mono_mb_emit_stloc (mb, 1);
1910 mono_mb_patch_short_branch (mb, pos);
1913 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1914 mono_mb_emit_ldloc (mb, 0);
1915 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1916 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1918 mono_mb_emit_ldloc (mb, 1);
1919 mono_mb_emit_ldloc (mb, 0);
1920 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1921 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1922 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1923 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1924 mono_mb_patch_short_branch (mb, pos);
1927 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1928 int src_var, dst_var;
1930 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1931 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1933 mono_mb_emit_ldloc (mb, 0);
1934 mono_mb_emit_byte (mb, CEE_LDIND_I);
1935 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1937 /* save the old src pointer */
1938 mono_mb_emit_ldloc (mb, 0);
1939 mono_mb_emit_stloc (mb, src_var);
1940 /* save the old dst pointer */
1941 mono_mb_emit_ldloc (mb, 1);
1942 mono_mb_emit_stloc (mb, dst_var);
1944 /* src = pointer to object data */
1945 mono_mb_emit_ldloc (mb, 0);
1946 mono_mb_emit_byte (mb, CEE_LDIND_I);
1947 mono_mb_emit_icon (mb, sizeof (MonoObject));
1948 mono_mb_emit_byte (mb, CEE_ADD);
1949 mono_mb_emit_stloc (mb, 0);
1951 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1953 /* restore the old src pointer */
1954 mono_mb_emit_ldloc (mb, src_var);
1955 mono_mb_emit_stloc (mb, 0);
1956 /* restore the old dst pointer */
1957 mono_mb_emit_ldloc (mb, dst_var);
1958 mono_mb_emit_stloc (mb, 1);
1960 mono_mb_patch_short_branch (mb, pos);
1964 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1965 MonoException *exc = mono_get_exception_not_implemented (msg);
1968 mono_raise_exception (exc);
1974 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1976 MonoMarshalType *info;
1980 emit_struct_conv(mb, klass->parent, to_object);
1982 info = mono_marshal_load_type_info (klass);
1984 if (info->native_size == 0)
1987 if (klass->blittable) {
1988 int msize = mono_class_value_size (klass, NULL);
1989 g_assert (msize == info->native_size);
1990 mono_mb_emit_ldloc (mb, 1);
1991 mono_mb_emit_ldloc (mb, 0);
1992 mono_mb_emit_icon (mb, msize);
1993 mono_mb_emit_byte (mb, CEE_PREFIX1);
1994 mono_mb_emit_byte (mb, CEE_CPBLK);
1996 mono_mb_emit_add_to_local (mb, 0, msize);
1997 mono_mb_emit_add_to_local (mb, 1, msize);
2001 for (i = 0; i < info->num_fields; i++) {
2002 MonoMarshalNative ntype;
2003 MonoMarshalConv conv;
2004 MonoType *ftype = info->fields [i].field->type;
2007 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2009 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2012 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2015 msize = klass->instance_size - info->fields [i].field->offset;
2016 usize = info->native_size - info->fields [i].offset;
2018 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2019 usize = info->fields [i + 1].offset - info->fields [i].offset;
2023 * FIXME: Should really check for usize==0 and msize>0, but we apply
2024 * the layout to the managed structure as well.
2026 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2027 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) || ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2028 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));
2031 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2032 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
2035 case MONO_MARSHAL_CONV_NONE: {
2038 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2039 ftype->type == MONO_TYPE_U) {
2040 mono_mb_emit_ldloc (mb, 1);
2041 mono_mb_emit_ldloc (mb, 0);
2042 mono_mb_emit_byte (mb, CEE_LDIND_I);
2043 mono_mb_emit_byte (mb, CEE_STIND_I);
2054 case MONO_TYPE_BOOLEAN:
2057 case MONO_TYPE_CHAR:
2063 mono_mb_emit_ldloc (mb, 1);
2064 mono_mb_emit_ldloc (mb, 0);
2065 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2066 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2068 case MONO_TYPE_VALUETYPE: {
2069 int src_var, dst_var;
2071 if (ftype->data.klass->enumtype) {
2072 ftype = ftype->data.klass->enum_basetype;
2076 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2077 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2079 /* save the old src pointer */
2080 mono_mb_emit_ldloc (mb, 0);
2081 mono_mb_emit_stloc (mb, src_var);
2082 /* save the old dst pointer */
2083 mono_mb_emit_ldloc (mb, 1);
2084 mono_mb_emit_stloc (mb, dst_var);
2086 emit_struct_conv (mb, ftype->data.klass, to_object);
2088 /* restore the old src pointer */
2089 mono_mb_emit_ldloc (mb, src_var);
2090 mono_mb_emit_stloc (mb, 0);
2091 /* restore the old dst pointer */
2092 mono_mb_emit_ldloc (mb, dst_var);
2093 mono_mb_emit_stloc (mb, 1);
2098 g_warning ("marshaling type %02x not implemented", ftype->type);
2099 g_assert_not_reached ();
2104 int src_var, dst_var;
2106 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2107 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2109 /* save the old src pointer */
2110 mono_mb_emit_ldloc (mb, 0);
2111 mono_mb_emit_stloc (mb, src_var);
2112 /* save the old dst pointer */
2113 mono_mb_emit_ldloc (mb, 1);
2114 mono_mb_emit_stloc (mb, dst_var);
2117 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2119 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2121 /* restore the old src pointer */
2122 mono_mb_emit_ldloc (mb, src_var);
2123 mono_mb_emit_stloc (mb, 0);
2124 /* restore the old dst pointer */
2125 mono_mb_emit_ldloc (mb, dst_var);
2126 mono_mb_emit_stloc (mb, 1);
2131 mono_mb_emit_add_to_local (mb, 0, usize);
2132 mono_mb_emit_add_to_local (mb, 1, msize);
2134 mono_mb_emit_add_to_local (mb, 0, msize);
2135 mono_mb_emit_add_to_local (mb, 1, usize);
2141 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2143 /* Call DestroyStructure */
2144 /* FIXME: Only do this if needed */
2145 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2146 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2147 mono_mb_emit_ldloc (mb, struct_var);
2148 mono_mb_emit_icall (mb, mono_struct_delete_old);
2152 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2156 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2157 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2158 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2160 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2161 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2163 mono_mb_emit_icall (mb, checkpoint_func);
2165 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
2169 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2171 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2174 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2178 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2180 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2183 static MonoAsyncResult *
2184 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2186 MonoMethodMessage *msg;
2187 MonoDelegate *async_callback;
2191 MonoMethod *method = NULL, *method2 = NULL;
2193 g_assert (delegate);
2195 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2197 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2198 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2200 /* If the target is a proxy, make a direct call. Is proxy's work
2201 // to make the call asynchronous.
2203 MonoAsyncResult *ares;
2205 MonoArray *out_args;
2207 method = delegate->method_info->method;
2209 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2210 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2211 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2212 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2213 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2214 MONO_OBJECT_SETREF (msg, async_result, ares);
2215 msg->call_type = CallType_BeginInvoke;
2217 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2222 klass = delegate->object.vtable->klass;
2224 method = mono_get_delegate_invoke (klass);
2225 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2228 g_assert (method != NULL);
2230 im = mono_get_delegate_invoke (method->klass);
2231 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2233 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2237 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2239 int i, params_var, tmp_var;
2241 /* allocate local (pointer) *params[] */
2242 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2243 /* allocate local (pointer) tmp */
2244 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2246 /* alloate space on stack to store an array of pointers to the arguments */
2247 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2248 mono_mb_emit_byte (mb, CEE_PREFIX1);
2249 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2250 mono_mb_emit_stloc (mb, params_var);
2253 mono_mb_emit_ldloc (mb, params_var);
2254 mono_mb_emit_stloc (mb, tmp_var);
2256 if (save_this && sig->hasthis) {
2257 mono_mb_emit_ldloc (mb, tmp_var);
2258 mono_mb_emit_ldarg_addr (mb, 0);
2259 mono_mb_emit_byte (mb, CEE_STIND_I);
2260 /* tmp = tmp + sizeof (gpointer) */
2261 if (sig->param_count)
2262 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2266 for (i = 0; i < sig->param_count; i++) {
2267 mono_mb_emit_ldloc (mb, tmp_var);
2268 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2269 mono_mb_emit_byte (mb, CEE_STIND_I);
2270 /* tmp = tmp + sizeof (gpointer) */
2271 if (i < (sig->param_count - 1))
2272 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2279 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2283 GString *res = g_string_new ("");
2286 g_string_append (res, prefix);
2287 g_string_append_c (res, '_');
2290 mono_type_get_desc (res, sig->ret, FALSE);
2292 for (i = 0; i < sig->param_count; ++i) {
2293 g_string_append_c (res, '_');
2294 mono_type_get_desc (res, sig->params [i], FALSE);
2297 g_string_free (res, FALSE);
2302 * mono_marshal_get_string_encoding:
2304 * Return the string encoding which should be used for a given parameter.
2306 static MonoMarshalNative
2307 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2309 /* First try the parameter marshal info */
2311 if (spec->native == MONO_NATIVE_LPARRAY) {
2312 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2313 return spec->data.array_data.elem_type;
2316 return spec->native;
2320 return MONO_NATIVE_LPSTR;
2322 /* Then try the method level marshal info */
2323 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2324 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2325 return MONO_NATIVE_LPSTR;
2326 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2327 return MONO_NATIVE_LPWSTR;
2328 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2329 #ifdef PLATFORM_WIN32
2330 return MONO_NATIVE_LPWSTR;
2332 return MONO_NATIVE_LPSTR;
2335 return MONO_NATIVE_LPSTR;
2339 static MonoMarshalConv
2340 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2342 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2345 case MONO_NATIVE_LPWSTR:
2346 return MONO_MARSHAL_CONV_STR_LPWSTR;
2347 case MONO_NATIVE_LPSTR:
2348 return MONO_MARSHAL_CONV_STR_LPSTR;
2349 case MONO_NATIVE_LPTSTR:
2350 return MONO_MARSHAL_CONV_STR_LPTSTR;
2351 case MONO_NATIVE_BSTR:
2352 return MONO_MARSHAL_CONV_STR_BSTR;
2358 static MonoMarshalConv
2359 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2361 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2364 case MONO_NATIVE_LPWSTR:
2365 return MONO_MARSHAL_CONV_SB_LPWSTR;
2367 case MONO_NATIVE_LPSTR:
2368 return MONO_MARSHAL_CONV_SB_LPSTR;
2370 case MONO_NATIVE_LPTSTR:
2371 return MONO_MARSHAL_CONV_SB_LPTSTR;
2378 static MonoMarshalConv
2379 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2381 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2386 case MONO_NATIVE_LPWSTR:
2387 return MONO_MARSHAL_CONV_LPWSTR_STR;
2388 case MONO_NATIVE_LPSTR:
2389 return MONO_MARSHAL_CONV_LPSTR_STR;
2390 case MONO_NATIVE_LPTSTR:
2391 return MONO_MARSHAL_CONV_LPTSTR_STR;
2392 case MONO_NATIVE_BSTR:
2393 return MONO_MARSHAL_CONV_BSTR_STR;
2399 static MonoMarshalConv
2400 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2402 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2407 case MONO_NATIVE_LPWSTR:
2409 * mono_string_builder_to_utf16 does not allocate a
2410 * new buffer, so no need to free it.
2413 return MONO_MARSHAL_CONV_LPWSTR_SB;
2414 case MONO_NATIVE_LPSTR:
2415 return MONO_MARSHAL_CONV_LPSTR_SB;
2417 case MONO_NATIVE_LPTSTR:
2418 return MONO_MARSHAL_CONV_LPTSTR_SB;
2426 * Return whenever a field of a native structure or an array member needs to
2430 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2432 MonoMarshalNative encoding;
2433 MonoMarshalConv conv;
2436 case MONO_TYPE_VALUETYPE:
2437 /* FIXME: Optimize this */
2439 case MONO_TYPE_OBJECT:
2440 case MONO_TYPE_CLASS:
2441 if (t->data.klass == mono_defaults.stringbuilder_class) {
2443 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2447 case MONO_TYPE_STRING:
2448 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2449 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2455 static inline MonoMethod*
2456 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2460 mono_marshal_lock ();
2461 res = g_hash_table_lookup (cache, key);
2462 mono_marshal_unlock ();
2466 /* Create the method from the builder and place it in the cache */
2467 static inline MonoMethod*
2468 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2469 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2474 mono_loader_lock ();
2475 mono_marshal_lock ();
2476 res = g_hash_table_lookup (cache, key);
2478 /* This does not acquire any locks */
2479 res = mono_mb_create_method (mb, sig, max_stack);
2480 g_hash_table_insert (cache, key, res);
2481 g_hash_table_insert (wrapper_hash, res, key);
2483 mono_marshal_unlock ();
2484 mono_loader_unlock ();
2490 static inline MonoMethod*
2491 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2493 MonoMethod *res = NULL;
2494 MonoRemotingMethods *wrps;
2496 mono_marshal_lock ();
2497 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2500 switch (wrapper_type) {
2501 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2502 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2503 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2504 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2508 mono_marshal_unlock ();
2512 /* Create the method from the builder and place it in the cache */
2513 static inline MonoMethod*
2514 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2515 MonoMethodSignature *sig, int max_stack)
2517 MonoMethod **res = NULL;
2518 MonoRemotingMethods *wrps;
2519 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2521 mono_loader_lock ();
2522 mono_marshal_lock ();
2523 wrps = g_hash_table_lookup (cache, key);
2525 wrps = g_new0 (MonoRemotingMethods, 1);
2526 g_hash_table_insert (cache, key, wrps);
2529 switch (mb->method->wrapper_type) {
2530 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2531 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2532 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2533 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2534 default: g_assert_not_reached (); break;
2538 /* This does not acquire any locks */
2539 *res = mono_mb_create_method (mb, sig, max_stack);
2540 g_hash_table_insert (wrapper_hash, *res, key);
2543 mono_marshal_unlock ();
2544 mono_loader_unlock ();
2550 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2554 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2557 mono_marshal_lock ();
2558 res = g_hash_table_lookup (wrapper_hash, wrapper);
2559 mono_marshal_unlock ();
2564 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2566 MonoMethodSignature *sig;
2567 MonoMethodBuilder *mb;
2573 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2574 !strcmp (method->name, "BeginInvoke"));
2576 sig = signature_no_pinvoke (method);
2578 cache = method->klass->image->delegate_begin_invoke_cache;
2579 if ((res = mono_marshal_find_in_cache (cache, sig)))
2582 g_assert (sig->hasthis);
2584 name = mono_signature_to_name (sig, "begin_invoke");
2585 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2588 mb->method->save_lmf = 1;
2590 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2592 mono_mb_emit_ldarg (mb, 0);
2593 mono_mb_emit_ldloc (mb, params_var);
2594 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2595 emit_thread_interrupt_checkpoint (mb);
2596 mono_mb_emit_byte (mb, CEE_RET);
2598 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2604 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2606 MonoDomain *domain = mono_domain_get ();
2607 MonoAsyncResult *ares;
2608 MonoMethod *method = NULL;
2609 MonoMethodSignature *sig;
2610 MonoMethodMessage *msg;
2611 MonoObject *res, *exc;
2612 MonoArray *out_args;
2615 g_assert (delegate);
2617 if (!delegate->method_info || !delegate->method_info->method)
2618 g_assert_not_reached ();
2620 klass = delegate->object.vtable->klass;
2622 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2623 g_assert (method != NULL);
2625 sig = signature_no_pinvoke (method);
2627 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2629 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2632 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2633 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2634 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2635 mono_message_init (domain, msg, delegate->method_info, NULL);
2636 msg->call_type = CallType_EndInvoke;
2637 MONO_OBJECT_SETREF (msg, async_result, ares);
2638 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2641 res = mono_thread_pool_finish (ares, &out_args, &exc);
2644 if (((MonoException*)exc)->stack_trace) {
2645 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2647 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2649 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2652 mono_raise_exception ((MonoException*)exc);
2655 mono_method_return_message_restore (method, params, out_args);
2660 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2662 MonoType *t = mono_type_get_underlying_type (return_type);
2664 if (return_type->byref)
2665 return_type = &mono_defaults.int_class->byval_arg;
2668 case MONO_TYPE_VOID:
2669 g_assert_not_reached ();
2672 case MONO_TYPE_STRING:
2673 case MONO_TYPE_CLASS:
2674 case MONO_TYPE_OBJECT:
2675 case MONO_TYPE_ARRAY:
2676 case MONO_TYPE_SZARRAY:
2680 case MONO_TYPE_BOOLEAN:
2683 case MONO_TYPE_CHAR:
2693 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2694 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2696 case MONO_TYPE_GENERICINST:
2697 if (!mono_type_generic_inst_is_valuetype (return_type))
2700 case MONO_TYPE_VALUETYPE: {
2701 MonoClass *klass = mono_class_from_mono_type (return_type);
2702 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2703 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2707 g_warning ("type 0x%x not handled", return_type->type);
2708 g_assert_not_reached ();
2711 mono_mb_emit_byte (mb, CEE_RET);
2715 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2717 MonoMethodSignature *sig;
2718 MonoMethodBuilder *mb;
2724 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2725 !strcmp (method->name, "EndInvoke"));
2727 sig = signature_no_pinvoke (method);
2729 cache = method->klass->image->delegate_end_invoke_cache;
2730 if ((res = mono_marshal_find_in_cache (cache, sig)))
2733 g_assert (sig->hasthis);
2735 name = mono_signature_to_name (sig, "end_invoke");
2736 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2739 mb->method->save_lmf = 1;
2741 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2743 mono_mb_emit_ldarg (mb, 0);
2744 mono_mb_emit_ldloc (mb, params_var);
2745 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2746 emit_thread_interrupt_checkpoint (mb);
2748 if (sig->ret->type == MONO_TYPE_VOID) {
2749 mono_mb_emit_byte (mb, CEE_POP);
2750 mono_mb_emit_byte (mb, CEE_RET);
2752 mono_mb_emit_restore_result (mb, sig->ret);
2754 res = mono_mb_create_and_cache (cache, sig,
2755 mb, sig, sig->param_count + 16);
2762 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2764 MonoMethodMessage *msg;
2765 MonoTransparentProxy *this;
2766 MonoObject *res, *exc;
2767 MonoArray *out_args;
2769 this = *((MonoTransparentProxy **)params [0]);
2772 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2774 /* skip the this pointer */
2777 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2780 MonoMethodSignature *sig = mono_method_signature (method);
2781 int count = sig->param_count;
2782 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2784 for (i=0; i<count; i++) {
2785 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2786 if (class->valuetype) {
2787 if (sig->params [i]->byref)
2788 mparams[i] = *((gpointer *)params [i]);
2790 mparams[i] = params [i];
2792 mparams[i] = *((gpointer**)params [i]);
2796 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2799 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2801 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2804 mono_raise_exception ((MonoException *)exc);
2806 mono_method_return_message_restore (method, params, out_args);
2812 * cominterop_get_native_wrapper_adjusted:
2813 * @method: managed COM Interop method
2815 * Returns: the generated method to call with signature matching
2816 * the unmanaged COM Method signature
2819 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
2822 MonoMethodBuilder *mb_native;
2823 MonoMarshalSpec **mspecs;
2824 MonoMethodSignature *sig, *sig_native;
2825 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
2828 sig = mono_method_signature (method);
2830 // create unmanaged wrapper
2831 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
2832 sig_native = signature_cominterop (method->klass->image, sig);
2834 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
2835 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
2837 mono_method_get_marshal_info (method, mspecs);
2839 // move managed args up one
2840 for (i = sig->param_count; i >= 1; i--)
2841 mspecs[i+1] = mspecs[i];
2843 // first arg is IntPtr for interface
2846 // move return spec to last param
2847 if (!MONO_TYPE_IS_VOID (sig->ret))
2848 mspecs[sig_native->param_count] = mspecs[0];
2852 mono_marshal_emit_native_wrapper(mono_defaults.corlib, mb_native, sig_native, piinfo, mspecs, piinfo->addr);
2854 mono_loader_lock ();
2855 mono_marshal_lock ();
2856 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
2857 mono_marshal_unlock ();
2858 mono_loader_unlock ();
2860 mono_mb_free (mb_native);
2862 for (i = sig_native->param_count; i >= 0; i--)
2864 mono_metadata_free_marshal_spec (mspecs [i]);
2871 * cominterop_get_native_wrapper:
2872 * @method: managed method
2874 * Returns: the generated method to call
2877 cominterop_get_native_wrapper (MonoMethod *method)
2881 MonoMethodBuilder *mb;
2882 MonoMethodSignature *sig, *csig;
2886 cache = method->klass->image->cominterop_wrapper_cache;
2887 if ((res = mono_marshal_find_in_cache (cache, method)))
2890 sig = mono_method_signature (method);
2891 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
2893 /* if method klass is import, that means method
2894 * is really a com call. let interop system emit it.
2896 if (MONO_CLASS_IS_IMPORT(method->klass)) {
2897 /* FIXME: we have to call actual class .ctor
2898 * instead of just __ComObject .ctor.
2900 if (!strcmp(method->name, ".ctor")) {
2901 static MonoMethod *ctor = NULL;
2904 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
2905 mono_mb_emit_ldarg (mb, 0);
2906 mono_mb_emit_managed_call (mb, ctor, NULL);
2907 mono_mb_emit_byte (mb, CEE_RET);
2910 static MonoMethod * ThrowExceptionForHR = NULL;
2911 static MonoMethod * GetInterface = NULL;
2912 MonoMethod *adjusted_method;
2918 GetInterface = mono_class_get_method_from_name (mono_defaults.com_object_class, "GetInterface", 1);
2920 // add local variables
2921 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
2922 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2923 if (!MONO_TYPE_IS_VOID (sig->ret))
2924 retval = mono_mb_add_local (mb, sig->ret);
2926 // get the type for the interface the method is defined on
2927 // and then get the underlying COM interface for that type
2928 mono_mb_emit_ldarg (mb, 0);
2929 mono_mb_emit_ptr (mb, method);
2930 mono_mb_emit_icall (mb, cominterop_get_method_interface);
2931 mono_mb_emit_managed_call (mb, GetInterface, NULL);
2932 mono_mb_emit_stloc (mb, ptr_this);
2934 // arg 1 is unmanaged this pointer
2935 mono_mb_emit_ldloc (mb, ptr_this);
2938 for (i = 1; i <= sig->param_count; i++)
2939 mono_mb_emit_ldarg (mb, i);
2941 // push managed return value as byref last argument
2942 if (!MONO_TYPE_IS_VOID (sig->ret))
2943 mono_mb_emit_ldloc_addr (mb, retval);
2945 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
2946 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
2948 // store HRESULT to check
2949 mono_mb_emit_stloc (mb, hr);
2951 if (!ThrowExceptionForHR)
2952 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
2953 mono_mb_emit_ldloc (mb, hr);
2954 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
2956 // load return value managed is expecting
2957 if (!MONO_TYPE_IS_VOID (sig->ret))
2958 mono_mb_emit_ldloc (mb, retval);
2960 mono_mb_emit_byte (mb, CEE_RET);
2965 /* Does this case ever get hit? */
2967 char *msg = g_strdup ("non imported interfaces on \
2968 imported classes is not yet implemented.");
2969 mono_mb_emit_exception (mb, "NotSupportedException", msg);
2971 csig = signature_dup (method->klass->image, sig);
2973 res = mono_mb_create_and_cache (cache, method,
2974 mb, csig, csig->param_count + 16);
2980 * cominterop_get_invoke:
2981 * @method: managed method
2983 * Returns: the generated method that calls the underlying __ComObject
2984 * rather than the proxy object.
2987 cominterop_get_invoke (MonoMethod *method)
2989 MonoMethodSignature *sig;
2990 MonoMethodBuilder *mb;
2993 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
2997 if ((res = mono_marshal_find_in_cache (cache, method)))
3000 sig = signature_no_pinvoke (method);
3002 /* we cant remote methods without this pointer */
3006 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3008 /* get real proxy object, which is a ComInteropProxy in this case*/
3009 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3010 mono_mb_emit_ldarg (mb, 0);
3011 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3012 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3014 /* load the RCW from the ComInteropProxy*/
3015 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3016 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3018 /* load args and make the call on the RCW */
3019 for (i = 1; i <= sig->param_count; i++)
3020 mono_mb_emit_ldarg (mb, i);
3022 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3023 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3024 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3027 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3028 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3030 mono_mb_emit_op (mb, CEE_CALL, method);
3033 if (!strcmp(method->name, ".ctor")) {
3034 static MonoClass *com_interop_proxy_class = NULL;
3035 static MonoMethod *cache_proxy = NULL;
3037 if (!com_interop_proxy_class)
3038 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3040 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3042 mono_mb_emit_ldarg (mb, 0);
3043 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3044 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3045 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3048 emit_thread_interrupt_checkpoint (mb);
3050 mono_mb_emit_byte (mb, CEE_RET);
3052 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3059 mono_marshal_get_remoting_invoke (MonoMethod *method)
3061 MonoMethodSignature *sig;
3062 MonoMethodBuilder *mb;
3068 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3071 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3072 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3073 return cominterop_get_invoke(method);
3075 sig = signature_no_pinvoke (method);
3077 /* we cant remote methods without this pointer */
3081 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3084 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3085 mb->method->save_lmf = 1;
3087 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3089 mono_mb_emit_ptr (mb, method);
3090 mono_mb_emit_ldloc (mb, params_var);
3091 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3092 emit_thread_interrupt_checkpoint (mb);
3094 if (sig->ret->type == MONO_TYPE_VOID) {
3095 mono_mb_emit_byte (mb, CEE_POP);
3096 mono_mb_emit_byte (mb, CEE_RET);
3098 mono_mb_emit_restore_result (mb, sig->ret);
3101 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3107 /* mono_get_xdomain_marshal_type()
3108 * Returns the kind of marshalling that a type needs for cross domain calls.
3110 static MonoXDomainMarshalType
3111 mono_get_xdomain_marshal_type (MonoType *t)
3114 case MONO_TYPE_VOID:
3115 g_assert_not_reached ();
3119 case MONO_TYPE_BOOLEAN:
3122 case MONO_TYPE_CHAR:
3129 return MONO_MARSHAL_NONE;
3130 case MONO_TYPE_STRING:
3131 return MONO_MARSHAL_COPY;
3132 case MONO_TYPE_ARRAY:
3133 case MONO_TYPE_SZARRAY: {
3134 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3135 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3136 return MONO_MARSHAL_COPY;
3141 if (mono_class_from_mono_type (t) == mono_defaults.stringbuilder_class)
3142 return MONO_MARSHAL_COPY;
3144 return MONO_MARSHAL_SERIALIZE;
3148 /* mono_marshal_xdomain_copy_value
3149 * Makes a copy of "val" suitable for the current domain.
3152 mono_marshal_xdomain_copy_value (MonoObject *val)
3155 if (val == NULL) return NULL;
3157 domain = mono_domain_get ();
3159 switch (mono_object_class (val)->byval_arg.type) {
3160 case MONO_TYPE_VOID:
3161 g_assert_not_reached ();
3165 case MONO_TYPE_BOOLEAN:
3168 case MONO_TYPE_CHAR:
3174 case MONO_TYPE_R8: {
3175 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3177 case MONO_TYPE_STRING: {
3178 MonoString *str = (MonoString *) val;
3179 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3181 case MONO_TYPE_ARRAY:
3182 case MONO_TYPE_SZARRAY: {
3184 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3185 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3186 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3187 if (mt == MONO_MARSHAL_COPY) {
3188 int i, len = mono_array_length (acopy);
3189 for (i = 0; i < len; i++) {
3190 MonoObject *item = mono_array_get (acopy, gpointer, i);
3191 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3194 return (MonoObject *) acopy;
3198 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3199 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3200 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3201 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3202 newsb->length = oldsb->length;
3203 newsb->max_capacity = (gint32)0x7fffffff;
3204 return (MonoObject *) newsb;
3209 /* mono_marshal_xdomain_copy_out_value()
3210 * Copies the contents of the src instance into the dst instance. src and dst
3211 * must have the same type, and if they are arrays, the same size.
3214 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3216 if (src == NULL || dst == NULL) return;
3218 g_assert (mono_object_class (src) == mono_object_class (dst));
3220 switch (mono_object_class (src)->byval_arg.type) {
3221 case MONO_TYPE_ARRAY:
3222 case MONO_TYPE_SZARRAY: {
3223 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3224 if (mt == MONO_MARSHAL_SERIALIZE) return;
3225 if (mt == MONO_MARSHAL_COPY) {
3226 int i, len = mono_array_length ((MonoArray *)dst);
3227 for (i = 0; i < len; i++) {
3228 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3229 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3232 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3238 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3239 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3240 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3242 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)));
3243 dst_sb->cached_str = NULL;
3244 dst_sb->length = src_sb->length;
3249 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3251 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3252 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3256 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3258 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3261 /* mono_marshal_supports_fast_xdomain()
3262 * Returns TRUE if the method can use the fast xdomain wrapper.
3265 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3267 return !method->klass->contextbound &&
3268 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3272 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3274 MonoDomain *current_domain = mono_domain_get ();
3275 MonoDomain *domain = mono_domain_get_by_id (id);
3277 if (!domain || !mono_domain_set (domain, FALSE))
3278 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3281 mono_thread_push_appdomain_ref (domain);
3283 mono_thread_pop_appdomain_ref ();
3285 return current_domain->domain_id;
3289 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3291 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3294 /* mono_marshal_emit_load_domain_method ()
3295 * Loads into the stack a pointer to the code of the provided method for
3296 * the current domain.
3299 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3301 /* We need a pointer to the method for the running domain (not the domain
3302 * that compiles the method).
3304 mono_mb_emit_ptr (mb, method);
3305 mono_mb_emit_icall (mb, mono_compile_method);
3308 /* mono_marshal_check_domain_image ()
3309 * Returns TRUE if the image is loaded in the specified
3310 * application domain.
3313 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3318 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3322 mono_domain_assemblies_lock (domain);
3323 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3325 if (ass->image == image)
3328 mono_domain_assemblies_unlock (domain);
3333 /* mono_marshal_get_xappdomain_dispatch ()
3334 * Generates a method that dispatches a method call from another domain into
3335 * the current domain.
3338 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3340 MonoMethodSignature *sig, *csig;
3341 MonoMethodBuilder *mb;
3343 int i, j, param_index, copy_locals_base;
3344 MonoClass *ret_class = NULL;
3345 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3346 MonoExceptionClause *main_clause;
3347 MonoMethodHeader *header;
3349 gboolean copy_return;
3351 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3354 sig = mono_method_signature (method);
3355 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3358 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3359 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3360 csig->params [j++] = &byte_array_class->this_arg;
3361 csig->params [j++] = &byte_array_class->this_arg;
3362 for (i = 0; i < sig->param_count; i++) {
3363 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3364 csig->params [j++] = sig->params [i];
3367 csig->ret = sig->ret;
3369 csig->ret = &mono_defaults.void_class->byval_arg;
3371 csig->hasthis = FALSE;
3373 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3374 mb->method->save_lmf = 1;
3378 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3379 if (complex_count > 0)
3380 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3381 if (sig->ret->type != MONO_TYPE_VOID) {
3382 loc_return = mono_mb_add_local (mb, sig->ret);
3383 ret_class = mono_class_from_mono_type (sig->ret);
3388 main_clause = g_new0 (MonoExceptionClause, 1);
3389 main_clause->try_offset = mb->pos;
3391 /* Clean the call context */
3393 mono_mb_emit_byte (mb, CEE_LDNULL);
3394 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3395 mono_mb_emit_byte (mb, CEE_POP);
3397 /* Deserialize call data */
3399 mono_mb_emit_ldarg (mb, 1);
3400 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3401 mono_mb_emit_byte (mb, CEE_DUP);
3402 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3404 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3405 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3407 if (complex_count > 0)
3408 mono_mb_emit_stloc (mb, loc_array);
3410 mono_mb_emit_byte (mb, CEE_POP);
3412 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
3414 /* Get the target object */
3416 mono_mb_emit_ldarg (mb, 0);
3417 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3419 /* Load the arguments */
3421 copy_locals_base = mb->locals;
3422 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3424 for (i = 0; i < sig->param_count; i++) {
3425 MonoType *pt = sig->params [i];
3426 MonoClass *pclass = mono_class_from_mono_type (pt);
3427 switch (marshal_types [i]) {
3428 case MONO_MARSHAL_SERIALIZE: {
3429 /* take the value from the serialized array */
3430 mono_mb_emit_ldloc (mb, loc_array);
3431 mono_mb_emit_icon (mb, j++);
3433 if (pclass->valuetype) {
3434 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3435 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3437 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3440 if (pclass->valuetype) {
3441 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3442 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3443 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3445 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3446 if (pclass != mono_defaults.object_class) {
3447 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3453 case MONO_MARSHAL_COPY_OUT: {
3454 /* Keep a local copy of the value since we need to copy it back after the call */
3455 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3456 mono_mb_emit_ldarg (mb, param_index++);
3457 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3458 mono_mb_emit_byte (mb, CEE_DUP);
3459 mono_mb_emit_stloc (mb, copy_local);
3462 case MONO_MARSHAL_COPY: {
3463 mono_mb_emit_ldarg (mb, param_index);
3465 mono_mb_emit_byte (mb, CEE_DUP);
3466 mono_mb_emit_byte (mb, CEE_DUP);
3467 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3468 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3469 mono_mb_emit_byte (mb, CEE_STIND_REF);
3471 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3476 case MONO_MARSHAL_NONE:
3477 mono_mb_emit_ldarg (mb, param_index++);
3482 /* Make the call to the real object */
3484 emit_thread_force_interrupt_checkpoint (mb);
3486 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3488 if (sig->ret->type != MONO_TYPE_VOID)
3489 mono_mb_emit_stloc (mb, loc_return);
3491 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3495 for (i = 0; i < sig->param_count; i++) {
3496 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3497 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3498 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3499 mono_mb_emit_ldarg (mb, param_index);
3500 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3505 /* Serialize the return values */
3507 if (complex_out_count > 0) {
3508 /* Reset parameters in the array that don't need to be serialized back */
3510 for (i = 0; i < sig->param_count; i++) {
3511 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3512 if (!sig->params [i]->byref) {
3513 mono_mb_emit_ldloc (mb, loc_array);
3514 mono_mb_emit_icon (mb, j);
3515 mono_mb_emit_byte (mb, CEE_LDNULL);
3516 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3521 /* Add the return value to the array */
3523 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3524 mono_mb_emit_ldloc (mb, loc_array);
3525 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3526 mono_mb_emit_ldloc (mb, loc_return);
3527 if (ret_class->valuetype) {
3528 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3530 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3535 mono_mb_emit_ldarg (mb, 1);
3536 mono_mb_emit_ldloc (mb, loc_array);
3537 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3538 mono_mb_emit_byte (mb, CEE_STIND_REF);
3539 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3540 mono_mb_emit_ldarg (mb, 1);
3541 mono_mb_emit_ldloc (mb, loc_return);
3542 if (ret_class->valuetype) {
3543 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3545 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3546 mono_mb_emit_byte (mb, CEE_STIND_REF);
3548 mono_mb_emit_ldarg (mb, 1);
3549 mono_mb_emit_byte (mb, CEE_LDNULL);
3550 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3551 mono_mb_emit_byte (mb, CEE_STIND_REF);
3554 mono_mb_emit_ldarg (mb, 2);
3555 mono_mb_emit_byte (mb, CEE_LDNULL);
3556 mono_mb_emit_byte (mb, CEE_STIND_REF);
3557 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3559 /* Main exception catch */
3560 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3561 main_clause->try_len = mb->pos - main_clause->try_offset;
3562 main_clause->data.catch_class = mono_defaults.object_class;
3565 main_clause->handler_offset = mb->pos;
3566 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3567 mono_mb_emit_stloc (mb, loc_serialized_exc);
3568 mono_mb_emit_ldarg (mb, 2);
3569 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3570 mono_mb_emit_byte (mb, CEE_STIND_REF);
3571 mono_mb_emit_branch (mb, CEE_LEAVE);
3572 main_clause->handler_len = mb->pos - main_clause->handler_offset;
3575 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
3578 mono_mb_emit_ldloc (mb, loc_return);
3580 mono_mb_emit_byte (mb, CEE_RET);
3582 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3585 header = ((MonoMethodNormal *)res)->header;
3586 header->num_clauses = 1;
3587 header->clauses = main_clause;
3592 /* mono_marshal_get_xappdomain_invoke ()
3593 * Generates a fast remoting wrapper for cross app domain calls.
3596 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3598 MonoMethodSignature *sig;
3599 MonoMethodBuilder *mb;
3601 int i, j, complex_count, complex_out_count, copy_locals_base;
3603 MonoClass *ret_class = NULL;
3604 MonoMethod *xdomain_method;
3605 int ret_marshal_type = MONO_MARSHAL_NONE;
3606 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3607 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3608 int pos, pos_dispatch, pos_noex;
3609 gboolean copy_return = FALSE;
3613 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3616 /* we cant remote methods without this pointer */
3617 if (!mono_method_signature (method)->hasthis)
3620 if (!mono_marshal_supports_fast_xdomain (method))
3621 return mono_marshal_get_remoting_invoke (method);
3623 mono_remoting_marshal_init ();
3625 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3628 sig = signature_no_pinvoke (method);
3630 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3631 mb->method->save_lmf = 1;
3633 /* Count the number of parameters that need to be serialized */
3635 marshal_types = alloca (sizeof (int) * sig->param_count);
3636 complex_count = complex_out_count = 0;
3637 for (i = 0; i < sig->param_count; i++) {
3638 MonoType *ptype = sig->params[i];
3639 int mt = mono_get_xdomain_marshal_type (ptype);
3641 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3642 * the copy will be made by reusing the original object instance
3644 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3645 mt = MONO_MARSHAL_COPY_OUT;
3646 else if (mt == MONO_MARSHAL_SERIALIZE) {
3648 if (ptype->byref) complex_out_count++;
3650 marshal_types [i] = mt;
3653 if (sig->ret->type != MONO_TYPE_VOID) {
3654 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3655 ret_class = mono_class_from_mono_type (sig->ret);
3656 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3661 if (complex_count > 0)
3662 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3663 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3664 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3666 loc_return = mono_mb_add_local (mb, sig->ret);
3667 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3668 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3669 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3670 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3672 /* Save thread domain data */
3674 mono_mb_emit_icall (mb, mono_context_get);
3675 mono_mb_emit_byte (mb, CEE_DUP);
3676 mono_mb_emit_stloc (mb, loc_context);
3678 /* If the thread is not running in the default context, it needs to go
3679 * through the whole remoting sink, since the context is going to change
3681 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3682 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3684 /* Another case in which the fast path can't be used: when the target domain
3685 * has a different image for the same assembly.
3688 /* Get the target domain id */
3690 mono_mb_emit_ldarg (mb, 0);
3691 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3693 mono_mb_emit_byte (mb, CEE_DUP);
3694 mono_mb_emit_stloc (mb, loc_real_proxy);
3696 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3697 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3698 mono_mb_emit_stloc (mb, loc_domainid);
3700 /* Check if the target domain has the same image for the required assembly */
3702 mono_mb_emit_ldloc (mb, loc_domainid);
3703 mono_mb_emit_ptr (mb, method->klass->image);
3704 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3705 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3707 /* Use the whole remoting sink to dispatch this message */
3709 mono_mb_patch_short_branch (mb, pos);
3711 mono_mb_emit_ldarg (mb, 0);
3712 for (i = 0; i < sig->param_count; i++)
3713 mono_mb_emit_ldarg (mb, i + 1);
3715 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3716 mono_mb_emit_byte (mb, CEE_RET);
3717 mono_mb_patch_short_branch (mb, pos_dispatch);
3719 /* Create the array that will hold the parameters to be serialized */
3721 if (complex_count > 0) {
3722 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 */
3723 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3726 for (i = 0; i < sig->param_count; i++) {
3728 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3729 pclass = mono_class_from_mono_type (sig->params[i]);
3730 mono_mb_emit_byte (mb, CEE_DUP);
3731 mono_mb_emit_icon (mb, j);
3732 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3733 if (sig->params[i]->byref) {
3734 if (pclass->valuetype)
3735 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3737 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3739 if (pclass->valuetype)
3740 mono_mb_emit_op (mb, CEE_BOX, pclass);
3741 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3744 mono_mb_emit_stloc (mb, loc_array);
3746 /* Serialize parameters */
3748 mono_mb_emit_ldloc (mb, loc_array);
3749 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3750 mono_mb_emit_stloc (mb, loc_serialized_data);
3752 mono_mb_emit_byte (mb, CEE_LDNULL);
3753 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3754 mono_mb_emit_stloc (mb, loc_serialized_data);
3759 mono_mb_emit_ldloc (mb, loc_domainid);
3760 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3761 mono_marshal_emit_switch_domain (mb);
3762 mono_mb_emit_stloc (mb, loc_old_domainid);
3764 /* Load the arguments */
3766 mono_mb_emit_ldloc (mb, loc_real_proxy);
3767 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3768 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3770 copy_locals_base = mb->locals;
3771 for (i = 0; i < sig->param_count; i++) {
3772 switch (marshal_types [i]) {
3773 case MONO_MARSHAL_SERIALIZE:
3775 case MONO_MARSHAL_COPY: {
3776 mono_mb_emit_ldarg (mb, i+1);
3777 if (sig->params [i]->byref) {
3778 /* make a local copy of the byref parameter. The real parameter
3779 * will be updated after the xdomain call
3781 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3782 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3783 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3784 mono_mb_emit_stloc (mb, copy_local);
3785 mono_mb_emit_ldloc_addr (mb, copy_local);
3789 case MONO_MARSHAL_COPY_OUT:
3790 case MONO_MARSHAL_NONE:
3791 mono_mb_emit_ldarg (mb, i+1);
3796 /* Make the call to the invoke wrapper in the target domain */
3798 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3799 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3800 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3803 mono_mb_emit_stloc (mb, loc_return);
3807 mono_mb_emit_ldloc (mb, loc_old_domainid);
3808 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3809 mono_marshal_emit_switch_domain (mb);
3810 mono_mb_emit_byte (mb, CEE_POP);
3812 /* Restore thread domain data */
3814 mono_mb_emit_ldloc (mb, loc_context);
3815 mono_mb_emit_icall (mb, mono_context_set);
3817 /* if (loc_serialized_exc != null) ... */
3819 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3820 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3822 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3823 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3824 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3825 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3826 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3827 mono_mb_emit_byte (mb, CEE_THROW);
3828 mono_mb_patch_addr_s (mb, pos_noex, mb->pos - pos_noex - 1);
3830 /* copy back non-serialized output parameters */
3833 for (i = 0; i < sig->param_count; i++) {
3834 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3835 mono_mb_emit_ldarg (mb, i + 1);
3836 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3837 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3838 mono_mb_emit_byte (mb, CEE_STIND_REF);
3841 /* Deserialize out parameters */
3843 if (complex_out_count > 0) {
3844 mono_mb_emit_ldloc (mb, loc_serialized_data);
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_stloc (mb, loc_array);
3849 /* Copy back output parameters and return type */
3852 for (i = 0; i < sig->param_count; i++) {
3853 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3854 if (sig->params[i]->byref) {
3855 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3856 mono_mb_emit_ldarg (mb, i + 1);
3857 mono_mb_emit_ldloc (mb, loc_array);
3858 mono_mb_emit_icon (mb, j);
3859 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3860 if (pclass->valuetype) {
3861 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3862 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3863 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3865 if (pclass != mono_defaults.object_class)
3866 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3867 mono_mb_emit_byte (mb, CEE_STIND_REF);
3873 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3874 mono_mb_emit_ldloc (mb, loc_array);
3875 mono_mb_emit_icon (mb, complex_count);
3876 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3877 if (ret_class->valuetype) {
3878 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3879 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3882 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3883 mono_mb_emit_ldloc (mb, loc_serialized_data);
3884 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3885 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3886 if (ret_class->valuetype) {
3887 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3888 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3889 } else if (ret_class != mono_defaults.object_class) {
3890 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3893 mono_mb_emit_ldloc (mb, loc_serialized_data);
3894 mono_mb_emit_byte (mb, CEE_DUP);
3895 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3896 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3898 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
3899 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3900 mono_mb_emit_byte (mb, CEE_POP);
3904 mono_mb_emit_ldloc (mb, loc_return);
3905 if (ret_marshal_type == MONO_MARSHAL_COPY)
3906 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3909 mono_mb_emit_byte (mb, CEE_RET);
3911 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3918 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3920 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
3921 return mono_marshal_get_xappdomain_invoke (method);
3922 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
3923 return cominterop_get_invoke (method);
3925 return mono_marshal_get_remoting_invoke (method);
3928 G_GNUC_UNUSED static gpointer
3929 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3931 if (rp->target_domain_id != -1)
3932 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3934 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3938 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3940 MonoMethodSignature *sig;
3941 MonoMethodBuilder *mb;
3942 MonoMethod *res, *native;
3943 int i, pos, pos_rem;
3947 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3950 sig = signature_no_pinvoke (method);
3952 /* we cant remote methods without this pointer */
3953 g_assert (sig->hasthis);
3955 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3958 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3960 for (i = 0; i <= sig->param_count; i++)
3961 mono_mb_emit_ldarg (mb, i);
3963 mono_mb_emit_ldarg (mb, 0);
3964 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3966 if (mono_marshal_supports_fast_xdomain (method)) {
3967 mono_mb_emit_ldarg (mb, 0);
3968 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3970 /* wrapper for cross app domain calls */
3971 native = mono_marshal_get_xappdomain_invoke (method);
3972 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3973 mono_mb_emit_byte (mb, CEE_RET);
3975 mono_mb_patch_addr (mb, pos_rem, mb->pos - (pos_rem + 4));
3977 /* wrapper for normal remote calls */
3978 native = mono_marshal_get_remoting_invoke (method);
3979 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3980 mono_mb_emit_byte (mb, CEE_RET);
3983 mono_mb_patch_branch (mb, pos);
3984 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3985 mono_mb_emit_byte (mb, CEE_RET);
3987 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3994 * the returned method invokes all methods in a multicast delegate
3997 mono_marshal_get_delegate_invoke (MonoMethod *method)
3999 MonoMethodSignature *sig, *static_sig;
4001 MonoMethodBuilder *mb;
4007 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4008 !strcmp (method->name, "Invoke"));
4010 sig = signature_no_pinvoke (method);
4012 cache = method->klass->image->delegate_invoke_cache;
4013 if ((res = mono_marshal_find_in_cache (cache, sig)))
4016 static_sig = signature_dup (method->klass->image, sig);
4017 static_sig->hasthis = 0;
4019 name = mono_signature_to_name (sig, "invoke");
4020 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4023 /* allocate local 0 (object) */
4024 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4026 g_assert (sig->hasthis);
4030 * prev.Invoke( args .. );
4031 * return this.<target>( args .. );
4034 /* this wrapper can be used in unmanaged-managed transitions */
4035 emit_thread_interrupt_checkpoint (mb);
4037 /* get this->prev */
4038 mono_mb_emit_ldarg (mb, 0);
4039 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4040 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4041 mono_mb_emit_stloc (mb, 0);
4043 /* if prev != null */
4044 mono_mb_emit_ldloc (mb, 0);
4045 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4048 mono_mb_emit_ldloc (mb, 0);
4049 for (i = 0; i < sig->param_count; i++)
4050 mono_mb_emit_ldarg (mb, i + 1);
4051 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4052 if (sig->ret->type != MONO_TYPE_VOID)
4053 mono_mb_emit_byte (mb, CEE_POP);
4055 /* continued or prev == null */
4056 mono_mb_patch_branch (mb, pos0);
4058 /* get this->target */
4059 mono_mb_emit_ldarg (mb, 0);
4060 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4061 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4062 mono_mb_emit_stloc (mb, 0);
4064 /* if target != null */
4065 mono_mb_emit_ldloc (mb, 0);
4066 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4068 /* then call this->method_ptr nonstatic */
4069 mono_mb_emit_ldloc (mb, 0);
4070 for (i = 0; i < sig->param_count; ++i)
4071 mono_mb_emit_ldarg (mb, i + 1);
4072 mono_mb_emit_ldarg (mb, 0);
4073 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4074 mono_mb_emit_byte (mb, CEE_LDIND_I );
4075 mono_mb_emit_op (mb, CEE_CALLI, sig);
4077 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4079 /* else [target == null] call this->method_ptr static */
4080 mono_mb_patch_branch (mb, pos0);
4082 for (i = 0; i < sig->param_count; ++i)
4083 mono_mb_emit_ldarg (mb, i + 1);
4084 mono_mb_emit_ldarg (mb, 0);
4085 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4086 mono_mb_emit_byte (mb, CEE_LDIND_I );
4087 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4090 mono_mb_patch_branch (mb, pos1);
4091 mono_mb_emit_byte (mb, CEE_RET);
4093 res = mono_mb_create_and_cache (cache, sig,
4094 mb, sig, sig->param_count + 16);
4101 * signature_dup_add_this:
4103 * Make a copy of @sig, adding an explicit this argument.
4105 static MonoMethodSignature*
4106 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4108 MonoMethodSignature *res;
4111 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4112 memcpy (res, sig, sizeof (MonoMethodSignature));
4113 res->param_count = sig->param_count + 1;
4114 res->hasthis = FALSE;
4115 for (i = sig->param_count - 1; i >= 0; i --)
4116 res->params [i + 1] = sig->params [i];
4117 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4124 MonoMethodSignature *sig;
4130 * generates IL code for the runtime invoke function
4131 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4133 * we also catch exceptions if exc != null
4136 mono_marshal_get_runtime_invoke (MonoMethod *method)
4138 MonoMethodSignature *sig, *csig, *callsig;
4139 MonoExceptionClause *clause;
4140 MonoMethodHeader *header;
4141 MonoMethodBuilder *mb;
4142 GHashTable *cache = NULL;
4143 MonoClass *target_klass;
4144 MonoMethod *res = NULL;
4146 static MonoString *string_dummy = NULL;
4147 static MonoMethodSignature *dealy_abort_sig = NULL;
4153 target_klass = method->klass;
4155 mono_marshal_lock ();
4157 if (method->string_ctor) {
4158 static GSList *strsig_list = NULL;
4162 for (item = strsig_list; item; item = item->next) {
4164 if (mono_metadata_signature_equal (mono_method_signature (method), mono_method_signature (cs->ctor))) {
4170 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4171 callsig->ret = &mono_defaults.string_class->byval_arg;
4172 cs = g_new (CtorSigPair, 1);
4175 strsig_list = g_slist_prepend (strsig_list, cs);
4178 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4180 * Valuetype methods receive a managed pointer as the this argument.
4181 * Create a new signature to reflect this.
4183 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4185 callsig = mono_method_signature (method);
4189 cache = method->klass->image->runtime_invoke_cache;
4191 /* from mono_marshal_find_in_cache */
4192 res = g_hash_table_lookup (cache, callsig);
4193 mono_marshal_unlock ();
4199 if (!dealy_abort_sig) {
4200 dealy_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4201 dealy_abort_sig->ret = &mono_defaults.void_class->byval_arg;
4202 dealy_abort_sig->pinvoke = 0;
4205 target_klass = mono_defaults.object_class;
4207 /* to make it work with our special string constructors */
4208 if (!string_dummy) {
4209 MONO_GC_REGISTER_ROOT (string_dummy);
4210 string_dummy = mono_string_new_wrapper ("dummy");
4213 sig = mono_method_signature (method);
4215 csig = mono_metadata_signature_alloc (method->klass->image, 4);
4217 csig->ret = &mono_defaults.object_class->byval_arg;
4218 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4219 csig->params [0] = callsig->params [0];
4221 csig->params [0] = &mono_defaults.object_class->byval_arg;
4222 csig->params [1] = &mono_defaults.int_class->byval_arg;
4223 csig->params [2] = &mono_defaults.int_class->byval_arg;
4224 csig->params [3] = &mono_defaults.int_class->byval_arg;
4226 name = mono_signature_to_name (callsig, "runtime_invoke");
4227 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4230 /* allocate local 0 (object) tmp */
4231 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4232 /* allocate local 1 (object) exc */
4233 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4235 /* cond set *exc to null */
4236 mono_mb_emit_byte (mb, CEE_LDARG_2);
4237 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4238 mono_mb_emit_byte (mb, 3);
4239 mono_mb_emit_byte (mb, CEE_LDARG_2);
4240 mono_mb_emit_byte (mb, CEE_LDNULL);
4241 mono_mb_emit_byte (mb, CEE_STIND_REF);
4243 emit_thread_force_interrupt_checkpoint (mb);
4246 if (method->string_ctor) {
4247 mono_mb_emit_ptr (mb, string_dummy);
4249 mono_mb_emit_ldarg (mb, 0);
4253 for (i = 0; i < sig->param_count; i++) {
4254 MonoType *t = sig->params [i];
4257 mono_mb_emit_ldarg (mb, 1);
4259 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4260 mono_mb_emit_byte (mb, CEE_ADD);
4262 mono_mb_emit_byte (mb, CEE_LDIND_I);
4267 type = sig->params [i]->type;
4271 case MONO_TYPE_BOOLEAN:
4275 case MONO_TYPE_CHAR:
4284 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4286 case MONO_TYPE_STRING:
4287 case MONO_TYPE_CLASS:
4288 case MONO_TYPE_ARRAY:
4290 case MONO_TYPE_SZARRAY:
4291 case MONO_TYPE_OBJECT:
4294 case MONO_TYPE_GENERICINST:
4295 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4301 case MONO_TYPE_VALUETYPE:
4302 if (t->data.klass->enumtype) {
4303 type = t->data.klass->enum_basetype->type;
4306 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4307 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4308 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4309 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4311 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4315 g_assert_not_reached ();
4319 mono_mb_emit_ldarg (mb, 3);
4320 mono_mb_emit_calli (mb, callsig);
4322 if (sig->ret->byref) {
4324 g_assert_not_reached ();
4328 switch (sig->ret->type) {
4329 case MONO_TYPE_VOID:
4330 if (!method->string_ctor)
4331 mono_mb_emit_byte (mb, CEE_LDNULL);
4333 case MONO_TYPE_BOOLEAN:
4334 case MONO_TYPE_CHAR:
4347 case MONO_TYPE_VALUETYPE:
4348 case MONO_TYPE_TYPEDBYREF:
4349 case MONO_TYPE_GENERICINST:
4350 /* box value types */
4351 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4353 case MONO_TYPE_STRING:
4354 case MONO_TYPE_CLASS:
4355 case MONO_TYPE_ARRAY:
4356 case MONO_TYPE_SZARRAY:
4357 case MONO_TYPE_OBJECT:
4362 g_assert_not_reached ();
4365 mono_mb_emit_stloc (mb, 0);
4367 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4369 mono_loader_lock ();
4370 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
4371 mono_loader_unlock ();
4372 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4373 clause->try_len = mb->pos;
4376 clause->data.filter_offset = mb->pos;
4378 mono_mb_emit_byte (mb, CEE_POP);
4379 mono_mb_emit_byte (mb, CEE_LDARG_2);
4380 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4381 mono_mb_emit_byte (mb, CEE_PREFIX1);
4382 mono_mb_emit_byte (mb, CEE_CGT_UN);
4383 mono_mb_emit_byte (mb, CEE_PREFIX1);
4384 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4386 clause->handler_offset = mb->pos;
4389 /* store exception */
4390 mono_mb_emit_stloc (mb, 1);
4392 mono_mb_emit_byte (mb, CEE_LDARG_2);
4393 mono_mb_emit_ldloc (mb, 1);
4394 mono_mb_emit_byte (mb, CEE_STIND_REF);
4396 mono_mb_emit_byte (mb, CEE_LDNULL);
4397 mono_mb_emit_stloc (mb, 0);
4399 /* Check for the abort exception */
4400 mono_mb_emit_ldloc (mb, 1);
4401 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4402 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4404 /* Delay the abort exception */
4405 mono_mb_emit_native_call (mb, dealy_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
4407 mono_mb_patch_short_branch (mb, posna);
4408 mono_mb_emit_branch (mb, CEE_LEAVE);
4410 clause->handler_len = mb->pos - clause->handler_offset;
4413 mono_mb_patch_branch (mb, pos);
4414 mono_mb_emit_ldloc (mb, 0);
4415 mono_mb_emit_byte (mb, CEE_RET);
4417 /* taken from mono_mb_create_and_cache */
4418 mono_loader_lock ();
4419 mono_marshal_lock ();
4421 res = g_hash_table_lookup (cache, callsig);
4422 /* Somebody may have created it before us */
4424 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
4425 g_hash_table_insert (cache, callsig, res);
4426 g_hash_table_insert (wrapper_hash, res, callsig);
4429 mono_marshal_unlock ();
4430 mono_loader_unlock ();
4431 /* end mono_mb_create_and_cache */
4435 header = ((MonoMethodNormal *)res)->header;
4436 header->num_clauses = 1;
4437 header->clauses = clause;
4443 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4445 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4446 klass->name_space, klass->name);
4448 mono_mb_emit_exception_marshal_directive (mb, msg);
4452 * mono_marshal_get_ldfld_remote_wrapper:
4453 * @klass: The return type
4455 * This method generates a wrapper for calling mono_load_remote_field_new with
4456 * the appropriate return type.
4459 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4461 MonoMethodSignature *sig, *csig;
4462 MonoMethodBuilder *mb;
4467 cache = klass->image->ldfld_remote_wrapper_cache;
4468 if ((res = mono_marshal_find_in_cache (cache, klass)))
4472 * This wrapper is similar to an icall wrapper but all the wrappers
4473 * call the same C function, but with a different signature.
4475 name = g_strdup_printf ("__mono_load_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
4476 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD_REMOTE);
4479 mb->method->save_lmf = 1;
4481 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4482 sig->params [0] = &mono_defaults.object_class->byval_arg;
4483 sig->params [1] = &mono_defaults.int_class->byval_arg;
4484 sig->params [2] = &mono_defaults.int_class->byval_arg;
4485 sig->ret = &klass->this_arg;
4487 mono_mb_emit_ldarg (mb, 0);
4488 mono_mb_emit_ldarg (mb, 1);
4489 mono_mb_emit_ldarg (mb, 2);
4491 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4492 csig->params [0] = &mono_defaults.object_class->byval_arg;
4493 csig->params [1] = &mono_defaults.int_class->byval_arg;
4494 csig->params [2] = &mono_defaults.int_class->byval_arg;
4495 csig->ret = &klass->this_arg;
4498 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4499 emit_thread_interrupt_checkpoint (mb);
4501 mono_mb_emit_byte (mb, CEE_RET);
4503 res = mono_mb_create_and_cache (cache, klass,
4504 mb, sig, sig->param_count + 16);
4511 * mono_marshal_get_ldfld_wrapper:
4512 * @type: the type of the field
4514 * This method generates a function which can be use to load a field with type
4515 * @type from an object. The generated function has the following signature:
4516 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4519 mono_marshal_get_ldfld_wrapper (MonoType *type)
4521 MonoMethodSignature *sig;
4522 MonoMethodBuilder *mb;
4527 int t, pos0, pos1 = 0;
4529 type = mono_type_get_underlying_type (type);
4534 if (type->type == MONO_TYPE_SZARRAY) {
4535 klass = mono_defaults.array_class;
4536 } else if (type->type == MONO_TYPE_VALUETYPE) {
4537 klass = type->data.klass;
4538 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4539 klass = mono_defaults.object_class;
4540 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4541 klass = mono_defaults.int_class;
4542 } else if (t == MONO_TYPE_GENERICINST) {
4543 if (mono_type_generic_inst_is_valuetype (type))
4544 klass = mono_class_from_mono_type (type);
4546 klass = mono_defaults.object_class;
4548 klass = mono_class_from_mono_type (type);
4551 klass = mono_defaults.int_class;
4554 cache = klass->image->ldfld_wrapper_cache;
4555 if ((res = mono_marshal_find_in_cache (cache, klass)))
4558 /* we add the %p pointer value of klass because class names are not unique */
4559 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4560 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4563 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4564 sig->params [0] = &mono_defaults.object_class->byval_arg;
4565 sig->params [1] = &mono_defaults.int_class->byval_arg;
4566 sig->params [2] = &mono_defaults.int_class->byval_arg;
4567 sig->params [3] = &mono_defaults.int_class->byval_arg;
4568 sig->ret = &klass->byval_arg;
4570 mono_mb_emit_ldarg (mb, 0);
4571 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4573 mono_mb_emit_ldarg (mb, 0);
4574 mono_mb_emit_ldarg (mb, 1);
4575 mono_mb_emit_ldarg (mb, 2);
4577 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4580 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4581 csig->params [0] = &mono_defaults.object_class->byval_arg;
4582 csig->params [1] = &mono_defaults.int_class->byval_arg;
4583 csig->params [2] = &mono_defaults.int_class->byval_arg;
4584 csig->ret = &klass->this_arg;
4587 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4588 emit_thread_interrupt_checkpoint (mb);
4591 if (klass->valuetype) {
4592 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4593 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4595 mono_mb_emit_byte (mb, CEE_RET);
4599 mono_mb_patch_branch (mb, pos0);
4601 mono_mb_emit_ldarg (mb, 0);
4602 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4603 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4604 mono_mb_emit_ldarg (mb, 3);
4605 mono_mb_emit_byte (mb, CEE_ADD);
4607 if (klass->valuetype)
4608 mono_mb_patch_branch (mb, pos1);
4613 case MONO_TYPE_BOOLEAN:
4614 case MONO_TYPE_CHAR:
4623 case MONO_TYPE_ARRAY:
4624 case MONO_TYPE_SZARRAY:
4625 case MONO_TYPE_OBJECT:
4626 case MONO_TYPE_CLASS:
4627 case MONO_TYPE_STRING:
4631 case MONO_TYPE_FNPTR:
4632 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4634 case MONO_TYPE_VALUETYPE:
4635 g_assert (!klass->enumtype);
4636 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4638 case MONO_TYPE_GENERICINST:
4639 if (mono_type_generic_inst_is_valuetype (type)) {
4640 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4642 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4646 g_warning ("type %x not implemented", type->type);
4647 g_assert_not_reached ();
4650 mono_mb_emit_byte (mb, CEE_RET);
4652 res = mono_mb_create_and_cache (cache, klass,
4653 mb, sig, sig->param_count + 16);
4660 * mono_marshal_get_ldflda_wrapper:
4661 * @type: the type of the field
4663 * This method generates a function which can be used to load a field address
4664 * from an object. The generated function has the following signature:
4665 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4668 mono_marshal_get_ldflda_wrapper (MonoType *type)
4670 MonoMethodSignature *sig;
4671 MonoMethodBuilder *mb;
4678 type = mono_type_get_underlying_type (type);
4682 if (type->type == MONO_TYPE_SZARRAY) {
4683 klass = mono_defaults.array_class;
4684 } else if (type->type == MONO_TYPE_VALUETYPE) {
4685 klass = type->data.klass;
4686 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4687 t == MONO_TYPE_CLASS) {
4688 klass = mono_defaults.object_class;
4689 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4690 klass = mono_defaults.int_class;
4691 } else if (t == MONO_TYPE_GENERICINST) {
4692 if (mono_type_generic_inst_is_valuetype (type))
4693 klass = mono_class_from_mono_type (type);
4695 klass = mono_defaults.object_class;
4697 klass = mono_class_from_mono_type (type);
4700 klass = mono_defaults.int_class;
4703 cache = klass->image->ldflda_wrapper_cache;
4704 if ((res = mono_marshal_find_in_cache (cache, klass)))
4707 /* we add the %p pointer value of klass because class names are not unique */
4708 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4709 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4712 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4713 sig->params [0] = &mono_defaults.object_class->byval_arg;
4714 sig->params [1] = &mono_defaults.int_class->byval_arg;
4715 sig->params [2] = &mono_defaults.int_class->byval_arg;
4716 sig->params [3] = &mono_defaults.int_class->byval_arg;
4717 sig->ret = &mono_defaults.int_class->byval_arg;
4719 mono_mb_emit_ldarg (mb, 0);
4720 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4722 /* FIXME: Only throw this if the object is in another appdomain */
4723 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4725 mono_mb_patch_branch (mb, pos0);
4727 mono_mb_emit_ldarg (mb, 0);
4728 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4729 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4730 mono_mb_emit_ldarg (mb, 3);
4731 mono_mb_emit_byte (mb, CEE_ADD);
4733 mono_mb_emit_byte (mb, CEE_RET);
4735 res = mono_mb_create_and_cache (cache, klass,
4736 mb, sig, sig->param_count + 16);
4743 * mono_marshal_get_stfld_remote_wrapper:
4744 * klass: The type of the field
4746 * This function generates a wrapper for calling mono_store_remote_field_new
4747 * with the appropriate signature.
4750 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4752 MonoMethodSignature *sig, *csig;
4753 MonoMethodBuilder *mb;
4758 cache = klass->image->stfld_remote_wrapper_cache;
4759 if ((res = mono_marshal_find_in_cache (cache, klass)))
4762 name = g_strdup_printf ("__mono_store_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
4763 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD_REMOTE);
4766 mb->method->save_lmf = 1;
4768 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4769 sig->params [0] = &mono_defaults.object_class->byval_arg;
4770 sig->params [1] = &mono_defaults.int_class->byval_arg;
4771 sig->params [2] = &mono_defaults.int_class->byval_arg;
4772 sig->params [3] = &klass->byval_arg;
4773 sig->ret = &mono_defaults.void_class->byval_arg;
4775 mono_mb_emit_ldarg (mb, 0);
4776 mono_mb_emit_ldarg (mb, 1);
4777 mono_mb_emit_ldarg (mb, 2);
4778 mono_mb_emit_ldarg (mb, 3);
4780 if (klass->valuetype)
4781 mono_mb_emit_op (mb, CEE_BOX, klass);
4783 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4784 csig->params [0] = &mono_defaults.object_class->byval_arg;
4785 csig->params [1] = &mono_defaults.int_class->byval_arg;
4786 csig->params [2] = &mono_defaults.int_class->byval_arg;
4787 csig->params [3] = &klass->byval_arg;
4788 csig->ret = &mono_defaults.void_class->byval_arg;
4791 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4792 emit_thread_interrupt_checkpoint (mb);
4794 mono_mb_emit_byte (mb, CEE_RET);
4796 res = mono_mb_create_and_cache (cache, klass,
4797 mb, sig, sig->param_count + 16);
4804 * mono_marshal_get_stfld_wrapper:
4805 * @type: the type of the field
4807 * This method generates a function which can be use to store a field with type
4808 * @type. The generated function has the following signature:
4809 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4812 mono_marshal_get_stfld_wrapper (MonoType *type)
4814 MonoMethodSignature *sig;
4815 MonoMethodBuilder *mb;
4822 type = mono_type_get_underlying_type (type);
4826 if (type->type == MONO_TYPE_SZARRAY) {
4827 klass = mono_defaults.array_class;
4828 } else if (type->type == MONO_TYPE_VALUETYPE) {
4829 klass = type->data.klass;
4830 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4831 klass = mono_defaults.object_class;
4832 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4833 klass = mono_defaults.int_class;
4834 } else if (t == MONO_TYPE_GENERICINST) {
4835 if (mono_type_generic_inst_is_valuetype (type))
4836 klass = mono_class_from_mono_type (type);
4838 klass = mono_defaults.object_class;
4840 klass = mono_class_from_mono_type (type);
4843 klass = mono_defaults.int_class;
4846 cache = klass->image->stfld_wrapper_cache;
4847 if ((res = mono_marshal_find_in_cache (cache, klass)))
4850 /* we add the %p pointer value of klass because class names are not unique */
4851 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4852 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4855 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4856 sig->params [0] = &mono_defaults.object_class->byval_arg;
4857 sig->params [1] = &mono_defaults.int_class->byval_arg;
4858 sig->params [2] = &mono_defaults.int_class->byval_arg;
4859 sig->params [3] = &mono_defaults.int_class->byval_arg;
4860 sig->params [4] = &klass->byval_arg;
4861 sig->ret = &mono_defaults.void_class->byval_arg;
4863 mono_mb_emit_ldarg (mb, 0);
4864 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4866 mono_mb_emit_ldarg (mb, 0);
4867 mono_mb_emit_ldarg (mb, 1);
4868 mono_mb_emit_ldarg (mb, 2);
4869 mono_mb_emit_ldarg (mb, 4);
4871 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4873 mono_mb_emit_byte (mb, CEE_RET);
4875 mono_mb_patch_branch (mb, pos);
4877 mono_mb_emit_ldarg (mb, 0);
4878 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4879 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4880 mono_mb_emit_ldarg (mb, 3);
4881 mono_mb_emit_byte (mb, CEE_ADD);
4882 mono_mb_emit_ldarg (mb, 4);
4887 case MONO_TYPE_BOOLEAN:
4888 case MONO_TYPE_CHAR:
4897 case MONO_TYPE_ARRAY:
4898 case MONO_TYPE_SZARRAY:
4899 case MONO_TYPE_OBJECT:
4900 case MONO_TYPE_CLASS:
4901 case MONO_TYPE_STRING:
4905 case MONO_TYPE_FNPTR:
4906 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4908 case MONO_TYPE_VALUETYPE:
4909 g_assert (!klass->enumtype);
4910 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4912 case MONO_TYPE_GENERICINST:
4913 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4916 g_warning ("type %x not implemented", type->type);
4917 g_assert_not_reached ();
4920 mono_mb_emit_byte (mb, CEE_RET);
4922 res = mono_mb_create_and_cache (cache, klass,
4923 mb, sig, sig->param_count + 16);
4930 * generates IL code for the icall wrapper (the generated method
4931 * calls the unmanaged code in func)
4934 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
4936 MonoMethodSignature *csig;
4937 MonoMethodBuilder *mb;
4941 g_assert (sig->pinvoke);
4943 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4945 mb->method->save_lmf = 1;
4947 /* we copy the signature, so that we can modify it */
4950 mono_mb_emit_byte (mb, CEE_LDARG_0);
4952 for (i = 0; i < sig->param_count; i++)
4953 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4955 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4956 emit_thread_interrupt_checkpoint (mb);
4957 mono_mb_emit_byte (mb, CEE_RET);
4959 csig = signature_dup (mono_defaults.corlib, sig);
4961 if (csig->call_convention == MONO_CALL_VARARG)
4962 csig->call_convention = 0;
4964 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4971 MonoMethodBuilder *mb;
4972 MonoMethodSignature *sig;
4973 MonoMethodPInvoke *piinfo;
4974 int *orig_conv_args; /* Locals containing the original values of byref args */
4976 MonoClass *retobj_class;
4977 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
4978 MonoImage *image; /* The image to use for looking up custom marshallers */
4979 } EmitMarshalContext;
4982 MARSHAL_ACTION_CONV_IN,
4983 MARSHAL_ACTION_PUSH,
4984 MARSHAL_ACTION_CONV_OUT,
4985 MARSHAL_ACTION_CONV_RESULT,
4986 MARSHAL_ACTION_MANAGED_CONV_IN,
4987 MARSHAL_ACTION_MANAGED_CONV_OUT,
4988 MARSHAL_ACTION_MANAGED_CONV_RESULT
4992 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4993 MonoMarshalSpec *spec,
4994 int conv_arg, MonoType **conv_arg_type,
4995 MarshalAction action)
4999 static MonoClass *ICustomMarshaler = NULL;
5000 static MonoMethod *cleanup_native, *cleanup_managed;
5001 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5002 MonoMethod *get_instance;
5003 MonoMethodBuilder *mb = m->mb;
5004 char *exception_msg = NULL;
5008 if (!ICustomMarshaler) {
5009 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5010 g_assert (ICustomMarshaler);
5012 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5013 g_assert (cleanup_native);
5014 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5015 g_assert (cleanup_managed);
5016 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5017 g_assert (marshal_managed_to_native);
5018 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5019 g_assert (marshal_native_to_managed);
5022 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5023 g_assert (mtype != NULL);
5024 mklass = mono_class_from_mono_type (mtype);
5025 g_assert (mklass != NULL);
5027 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5028 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5030 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5032 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5033 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5034 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5035 (get_sig->params [0]->type != MONO_TYPE_STRING))
5036 get_instance = NULL;
5040 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);
5042 /* Throw exception and emit compensation code if neccesary */
5043 if (exception_msg) {
5045 case MARSHAL_ACTION_CONV_IN:
5046 case MARSHAL_ACTION_CONV_RESULT:
5047 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5048 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5049 mono_mb_emit_byte (mb, CEE_POP);
5051 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5052 g_free (exception_msg);
5055 case MARSHAL_ACTION_PUSH:
5056 mono_mb_emit_byte (mb, CEE_LDNULL);
5064 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5065 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5068 case MARSHAL_ACTION_CONV_IN:
5070 case MONO_TYPE_CLASS:
5071 case MONO_TYPE_OBJECT:
5072 case MONO_TYPE_STRING:
5073 case MONO_TYPE_ARRAY:
5074 case MONO_TYPE_SZARRAY:
5075 case MONO_TYPE_VALUETYPE:
5079 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5080 g_assert_not_reached ();
5084 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5086 mono_mb_emit_byte (mb, CEE_LDNULL);
5087 mono_mb_emit_stloc (mb, conv_arg);
5089 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5092 /* Check for null */
5093 mono_mb_emit_ldarg (mb, argnum);
5095 mono_mb_emit_byte (mb, CEE_LDIND_I);
5096 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5098 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5100 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5102 mono_mb_emit_ldarg (mb, argnum);
5104 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5106 if (t->type == MONO_TYPE_VALUETYPE) {
5108 * Since we can't determine the type of the argument, we
5109 * will assume the unmanaged function takes a pointer.
5111 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5113 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5116 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5117 mono_mb_emit_stloc (mb, conv_arg);
5119 mono_mb_patch_branch (mb, pos2);
5122 case MARSHAL_ACTION_CONV_OUT:
5123 /* Check for null */
5124 mono_mb_emit_ldloc (mb, conv_arg);
5125 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5128 mono_mb_emit_ldarg (mb, argnum);
5130 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5132 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5134 mono_mb_emit_ldloc (mb, conv_arg);
5135 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5136 mono_mb_emit_byte (mb, CEE_STIND_REF);
5139 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5141 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5143 mono_mb_emit_ldloc (mb, conv_arg);
5145 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5147 mono_mb_patch_branch (mb, pos2);
5150 case MARSHAL_ACTION_PUSH:
5152 mono_mb_emit_ldloc_addr (mb, conv_arg);
5154 mono_mb_emit_ldloc (mb, conv_arg);
5157 case MARSHAL_ACTION_CONV_RESULT:
5158 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5160 mono_mb_emit_stloc (mb, 3);
5162 mono_mb_emit_ldloc (mb, 3);
5163 mono_mb_emit_stloc (mb, loc1);
5165 /* Check for null */
5166 mono_mb_emit_ldloc (mb, 3);
5167 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5169 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5171 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5172 mono_mb_emit_byte (mb, CEE_DUP);
5174 mono_mb_emit_ldloc (mb, 3);
5175 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5176 mono_mb_emit_stloc (mb, 3);
5178 mono_mb_emit_ldloc (mb, loc1);
5179 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5181 mono_mb_patch_branch (mb, pos2);
5184 case MARSHAL_ACTION_MANAGED_CONV_IN:
5190 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5192 mono_mb_emit_byte (mb, CEE_LDNULL);
5193 mono_mb_emit_stloc (mb, conv_arg);
5195 /* Check for null */
5196 mono_mb_emit_ldarg (mb, argnum);
5197 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5199 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5200 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5202 mono_mb_emit_ldarg (mb, argnum);
5204 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5205 mono_mb_emit_stloc (mb, conv_arg);
5207 mono_mb_patch_branch (mb, pos2);
5210 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5211 g_assert (!t->byref);
5213 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5215 mono_mb_emit_stloc (mb, 3);
5217 mono_mb_emit_ldloc (mb, 3);
5218 mono_mb_emit_stloc (mb, loc1);
5220 /* Check for null */
5221 mono_mb_emit_ldloc (mb, 3);
5222 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5224 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5225 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5226 mono_mb_emit_byte (mb, CEE_DUP);
5228 mono_mb_emit_ldloc (mb, 3);
5229 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5230 mono_mb_emit_stloc (mb, 3);
5232 mono_mb_emit_ldloc (mb, loc1);
5233 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5235 mono_mb_patch_branch (mb, pos2);
5238 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5239 g_assert (!t->byref);
5241 /* Check for null */
5242 mono_mb_emit_ldloc (mb, conv_arg);
5243 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5245 /* Call CleanUpManagedData */
5246 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5248 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5250 mono_mb_emit_ldloc (mb, conv_arg);
5251 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5253 mono_mb_patch_branch (mb, pos2);
5257 g_assert_not_reached ();
5264 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5265 MonoMarshalSpec *spec,
5266 int conv_arg, MonoType **conv_arg_type,
5267 MarshalAction action)
5269 MonoMethodBuilder *mb = m->mb;
5272 case MARSHAL_ACTION_CONV_IN: {
5273 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5275 g_assert (t->type == MONO_TYPE_OBJECT);
5276 g_assert (!t->byref);
5278 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5279 mono_mb_emit_ldarg (mb, argnum);
5280 mono_mb_emit_icon (mb, encoding);
5281 mono_mb_emit_icon (mb, t->attrs);
5282 mono_mb_emit_icall (mb, mono_marshal_asany);
5283 mono_mb_emit_stloc (mb, conv_arg);
5287 case MARSHAL_ACTION_PUSH:
5288 mono_mb_emit_ldloc (mb, conv_arg);
5291 case MARSHAL_ACTION_CONV_OUT: {
5292 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5294 mono_mb_emit_ldarg (mb, argnum);
5295 mono_mb_emit_ldloc (mb, conv_arg);
5296 mono_mb_emit_icon (mb, encoding);
5297 mono_mb_emit_icon (mb, t->attrs);
5298 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5303 g_assert_not_reached ();
5310 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5311 MonoMarshalSpec *spec,
5312 int conv_arg, MonoType **conv_arg_type,
5313 MarshalAction action)
5315 MonoMethodBuilder *mb = m->mb;
5319 klass = t->data.klass;
5322 case MARSHAL_ACTION_CONV_IN:
5323 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5324 klass->blittable || klass->enumtype)
5327 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5329 /* store the address of the source into local variable 0 */
5331 mono_mb_emit_ldarg (mb, argnum);
5333 mono_mb_emit_ldarg_addr (mb, argnum);
5335 mono_mb_emit_stloc (mb, 0);
5337 /* allocate space for the native struct and
5338 * store the address into local variable 1 (dest) */
5339 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5340 mono_mb_emit_byte (mb, CEE_PREFIX1);
5341 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5342 mono_mb_emit_stloc (mb, conv_arg);
5345 mono_mb_emit_ldloc (mb, 0);
5346 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5349 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5351 mono_mb_emit_ldloc (mb, conv_arg);
5352 mono_mb_emit_stloc (mb, 1);
5354 /* emit valuetype conversion code */
5355 emit_struct_conv (mb, klass, FALSE);
5359 mono_mb_patch_branch (mb, pos);
5362 case MARSHAL_ACTION_PUSH:
5363 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5365 g_assert (!t->byref);
5367 /* Have to change the signature since the vtype is passed byref */
5368 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5370 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5371 klass->blittable || klass->enumtype)
5372 mono_mb_emit_ldarg_addr (mb, argnum);
5374 mono_mb_emit_ldloc (mb, conv_arg);
5378 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5379 klass->blittable || klass->enumtype) {
5380 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_ldloc (mb, conv_arg);
5385 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5386 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5390 case MARSHAL_ACTION_CONV_OUT:
5391 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5392 klass->blittable || klass->enumtype)
5396 /* dst = argument */
5397 mono_mb_emit_ldarg (mb, argnum);
5398 mono_mb_emit_stloc (mb, 1);
5400 mono_mb_emit_ldloc (mb, 1);
5401 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5403 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5404 /* src = tmp_locals [i] */
5405 mono_mb_emit_ldloc (mb, conv_arg);
5406 mono_mb_emit_stloc (mb, 0);
5408 /* emit valuetype conversion code */
5409 emit_struct_conv (mb, klass, TRUE);
5413 emit_struct_free (mb, klass, conv_arg);
5416 mono_mb_patch_branch (mb, pos);
5419 case MARSHAL_ACTION_CONV_RESULT:
5420 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5422 mono_mb_emit_stloc (mb, 3);
5425 /* load pointer to returned value type */
5426 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5427 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5428 /* store the address of the source into local variable 0 */
5429 mono_mb_emit_stloc (mb, 0);
5431 mono_mb_emit_ldloc_addr (mb, 3);
5432 mono_mb_emit_stloc (mb, 1);
5434 /* emit valuetype conversion code */
5435 emit_struct_conv (mb, klass, TRUE);
5438 case MARSHAL_ACTION_MANAGED_CONV_IN:
5439 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5440 klass->blittable || klass->enumtype) {
5445 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5447 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5451 mono_mb_emit_ldarg (mb, argnum);
5453 mono_mb_emit_ldarg_addr (mb, argnum);
5454 mono_mb_emit_stloc (mb, 0);
5457 mono_mb_emit_ldloc (mb, 0);
5458 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5461 mono_mb_emit_ldloc_addr (mb, conv_arg);
5462 mono_mb_emit_stloc (mb, 1);
5464 /* emit valuetype conversion code */
5465 emit_struct_conv (mb, klass, TRUE);
5468 mono_mb_patch_branch (mb, pos);
5471 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5472 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5473 klass->blittable || klass->enumtype) {
5477 /* Check for null */
5478 mono_mb_emit_ldarg (mb, argnum);
5479 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5482 mono_mb_emit_ldloc_addr (mb, conv_arg);
5483 mono_mb_emit_stloc (mb, 0);
5486 mono_mb_emit_ldarg (mb, argnum);
5487 mono_mb_emit_stloc (mb, 1);
5489 /* emit valuetype conversion code */
5490 emit_struct_conv (mb, klass, FALSE);
5492 mono_mb_patch_branch (mb, pos2);
5495 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5496 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5497 klass->blittable || klass->enumtype) {
5498 mono_mb_emit_stloc (mb, 3);
5503 /* load pointer to returned value type */
5504 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5505 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5507 /* store the address of the source into local variable 0 */
5508 mono_mb_emit_stloc (mb, 0);
5509 /* allocate space for the native struct and
5510 * store the address into dst_ptr */
5511 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5512 m->retobj_class = klass;
5513 g_assert (m->retobj_var);
5514 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5515 mono_mb_emit_byte (mb, CEE_CONV_I);
5516 mono_mb_emit_icall (mb, mono_marshal_alloc);
5517 mono_mb_emit_stloc (mb, 1);
5518 mono_mb_emit_ldloc (mb, 1);
5519 mono_mb_emit_stloc (mb, m->retobj_var);
5521 /* emit valuetype conversion code */
5522 emit_struct_conv (mb, klass, FALSE);
5526 g_assert_not_reached ();
5533 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5534 MonoMarshalSpec *spec,
5535 int conv_arg, MonoType **conv_arg_type,
5536 MarshalAction action)
5538 MonoMethodBuilder *mb = m->mb;
5539 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5540 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5544 case MARSHAL_ACTION_CONV_IN:
5545 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5546 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5549 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5552 mono_mb_emit_ldarg (mb, argnum);
5553 mono_mb_emit_byte (mb, CEE_LDIND_I);
5555 mono_mb_emit_ldarg (mb, argnum);
5559 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5560 MonoException *exc = mono_get_exception_not_implemented (msg);
5563 mono_raise_exception (exc);
5566 mono_mb_emit_icall (mb, conv_to_icall (conv));
5568 mono_mb_emit_stloc (mb, conv_arg);
5571 case MARSHAL_ACTION_CONV_OUT:
5572 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5573 mono_mb_emit_ldarg (mb, argnum);
5574 mono_mb_emit_ldloc (mb, conv_arg);
5575 if (conv == MONO_MARSHAL_CONV_STR_BSTR) {
5576 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_BSTR_STR));
5577 // BSTRs always need freed
5578 mono_mb_emit_ldloc (mb, conv_arg);
5579 mono_mb_emit_icall (mb, mono_free_bstr);
5582 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
5583 mono_mb_emit_byte (mb, CEE_STIND_REF);
5585 if (mono_marshal_need_free (t, m->piinfo, spec)) {
5586 mono_mb_emit_ldloc (mb, conv_arg);
5587 if (conv == MONO_MARSHAL_CONV_STR_BSTR)
5588 mono_mb_emit_icall (mb, mono_free_bstr);
5590 mono_mb_emit_icall (mb, mono_marshal_free);
5595 case MARSHAL_ACTION_PUSH:
5597 mono_mb_emit_ldloc_addr (mb, conv_arg);
5599 mono_mb_emit_ldloc (mb, conv_arg);
5602 case MARSHAL_ACTION_CONV_RESULT:
5603 mono_mb_emit_stloc (mb, 0);
5605 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5607 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5608 mono_mb_emit_exception_marshal_directive (mb, msg);
5612 mono_mb_emit_ldloc (mb, 0);
5613 mono_mb_emit_icall (mb, conv_to_icall (conv));
5614 mono_mb_emit_stloc (mb, 3);
5616 /* free the string */
5617 mono_mb_emit_ldloc (mb, 0);
5618 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5619 mono_mb_emit_icall (mb, mono_free_bstr);
5621 mono_mb_emit_icall (mb, g_free);
5624 case MARSHAL_ACTION_MANAGED_CONV_IN:
5630 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5631 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5633 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5635 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5636 mono_mb_emit_exception_marshal_directive (mb, msg);
5640 mono_mb_emit_ldarg (mb, argnum);
5641 mono_mb_emit_icall (mb, conv_to_icall (conv));
5642 mono_mb_emit_stloc (mb, conv_arg);
5645 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5646 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
5647 mono_mb_emit_stloc (mb, 3);
5651 g_assert_not_reached ();
5658 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5659 MonoMarshalSpec *spec,
5660 int conv_arg, MonoType **conv_arg_type,
5661 MarshalAction action)
5663 MonoMethodBuilder *mb = m->mb;
5664 MonoClass *klass = t->data.klass;
5667 if (mono_class_from_mono_type (t) == mono_defaults.object_class &&
5668 (!spec || (spec && spec->native != MONO_NATIVE_STRUCT)) &&
5669 (!spec || (spec && (spec->native != MONO_NATIVE_IUNKNOWN &&
5670 spec->native != MONO_NATIVE_IDISPATCH &&
5671 spec->native != MONO_NATIVE_INTERFACE)))) {
5672 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
5676 case MARSHAL_ACTION_CONV_IN:
5677 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5678 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5680 m->orig_conv_args [argnum] = 0;
5682 if (spec && spec->native == MONO_NATIVE_STRUCT)
5684 static MonoMethod *get_native_variant_for_object = NULL;
5686 if (!get_native_variant_for_object)
5687 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5689 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
5691 local_variant = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
5692 conv_arg = local_variant;
5693 mono_mb_emit_ldarg (mb, argnum);
5695 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5696 mono_mb_emit_ldloc_addr (mb, local_variant);
5697 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5699 else if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
5700 spec->native == MONO_NATIVE_IDISPATCH ||
5701 spec->native == MONO_NATIVE_INTERFACE)) {
5702 mono_mb_emit_ptr (mb, 0);
5703 mono_mb_emit_stloc (mb, conv_arg);
5706 /* we dont need any conversions for out parameters */
5707 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5710 char *msg = g_strdup_printf ("non out object references are no implemented");
5711 MonoException *exc = mono_get_exception_not_implemented (msg);
5714 mono_raise_exception (exc);
5718 guint32 pos_failed = 0;
5719 mono_mb_emit_ldarg (mb, argnum);
5720 // if null just break, conv arg was already inited to 0
5721 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
5723 mono_mb_emit_ldarg (mb, argnum);
5724 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5725 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5727 /* load the RCW from the ComInteropProxy*/
5728 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
5729 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5731 if (klass && klass != mono_defaults.object_class) {
5732 static MonoMethod* GetInterface = NULL;
5735 GetInterface = mono_class_get_method_from_name (mono_defaults.com_object_class, "GetInterface", 1);
5736 mono_mb_emit_ptr (mb, t);
5737 mono_mb_emit_icall (mb, type_from_handle);
5738 mono_mb_emit_managed_call (mb, GetInterface, NULL);
5740 else if (spec->native == MONO_NATIVE_IUNKNOWN) {
5741 static MonoProperty* iunknown = NULL;
5744 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
5745 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
5747 else if (spec->native == MONO_NATIVE_IDISPATCH) {
5748 static MonoProperty* idispatch = NULL;
5751 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
5752 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
5756 mono_mb_emit_stloc (mb, conv_arg);
5759 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
5762 else if (klass->delegate) {
5763 g_assert (!t->byref);
5764 mono_mb_emit_ldarg (mb, argnum);
5765 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5766 mono_mb_emit_stloc (mb, conv_arg);
5767 } else if (klass == mono_defaults.stringbuilder_class) {
5768 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5769 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5771 g_assert (!t->byref);
5772 mono_mb_emit_ldarg (mb, argnum);
5775 mono_mb_emit_icall (mb, conv_to_icall (conv));
5777 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5778 MonoException *exc = mono_get_exception_not_implemented (msg);
5781 mono_raise_exception (exc);
5784 mono_mb_emit_stloc (mb, conv_arg);
5785 } else if (klass->blittable) {
5786 mono_mb_emit_byte (mb, CEE_LDNULL);
5787 mono_mb_emit_stloc (mb, conv_arg);
5789 mono_mb_emit_ldarg (mb, argnum);
5790 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5792 mono_mb_emit_ldarg (mb, argnum);
5793 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5794 mono_mb_emit_stloc (mb, conv_arg);
5796 mono_mb_patch_branch (mb, pos);
5799 mono_mb_emit_byte (mb, CEE_LDNULL);
5800 mono_mb_emit_stloc (mb, conv_arg);
5803 /* we dont need any conversions for out parameters */
5804 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5807 mono_mb_emit_ldarg (mb, argnum);
5808 mono_mb_emit_byte (mb, CEE_LDIND_I);
5811 mono_mb_emit_ldarg (mb, argnum);
5812 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5813 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5816 /* store the address of the source into local variable 0 */
5817 mono_mb_emit_stloc (mb, 0);
5818 mono_mb_emit_ldloc (mb, 0);
5819 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5821 /* allocate space for the native struct and store the address */
5822 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5823 mono_mb_emit_byte (mb, CEE_PREFIX1);
5824 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5825 mono_mb_emit_stloc (mb, conv_arg);
5828 /* Need to store the original buffer so we can free it later */
5829 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5830 mono_mb_emit_ldloc (mb, conv_arg);
5831 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5834 /* set the src_ptr */
5835 mono_mb_emit_ldloc (mb, 0);
5836 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5837 mono_mb_emit_stloc (mb, 0);
5840 mono_mb_emit_ldloc (mb, conv_arg);
5841 mono_mb_emit_stloc (mb, 1);
5843 /* emit valuetype conversion code */
5844 emit_struct_conv (mb, klass, FALSE);
5846 mono_mb_patch_branch (mb, pos);
5850 case MARSHAL_ACTION_CONV_OUT:
5851 if (spec && spec->native == MONO_NATIVE_STRUCT) {
5852 static MonoMethod *variant_clear = NULL;
5853 static MonoMethod *get_object_for_native_variant = NULL;
5855 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
5856 if (!get_object_for_native_variant)
5857 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5859 mono_mb_emit_ldarg (mb, argnum);
5860 mono_mb_emit_ldloc_addr (mb, conv_arg);
5861 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5862 mono_mb_emit_byte (mb, CEE_STIND_REF);
5865 mono_mb_emit_ldloc_addr (mb, conv_arg);
5866 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5870 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
5871 spec->native == MONO_NATIVE_IDISPATCH ||
5872 spec->native == MONO_NATIVE_INTERFACE)) {
5873 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5874 static MonoClass* com_interop_proxy_class = NULL;
5875 static MonoMethod* com_interop_proxy_get_proxy = NULL;
5876 static MonoMethod* get_transparent_proxy = NULL;
5878 guint32 pos_failed = 0;
5880 mono_mb_emit_ldarg (mb, argnum);
5881 mono_mb_emit_byte (mb, CEE_LDNULL);
5882 mono_mb_emit_byte (mb, CEE_STIND_REF);
5884 mono_mb_emit_ldloc (mb, conv_arg);
5885 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
5887 if (!com_interop_proxy_class)
5888 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
5889 if (!com_interop_proxy_get_proxy)
5890 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
5891 if (!get_transparent_proxy)
5892 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
5894 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
5896 mono_mb_emit_ldloc (mb, conv_arg);
5897 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
5898 mono_mb_emit_icall (mb, type_from_handle);
5899 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
5900 mono_mb_emit_stloc (mb, real_proxy);
5903 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_ldloc (mb, real_proxy);
5905 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
5906 if (klass && klass != mono_defaults.object_class)
5907 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
5908 mono_mb_emit_byte (mb, CEE_STIND_REF);
5911 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
5915 if (klass == mono_defaults.stringbuilder_class) {
5917 MonoMarshalNative encoding;
5918 MonoMarshalConv conv;
5920 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5921 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5923 g_assert (!t->byref);
5924 g_assert (encoding != -1);
5926 mono_mb_emit_ldarg (mb, argnum);
5927 mono_mb_emit_ldloc (mb, conv_arg);
5929 mono_mb_emit_icall (mb, conv_to_icall (conv));
5932 mono_mb_emit_ldloc (mb, conv_arg);
5933 mono_mb_emit_icall (mb, mono_marshal_free);
5938 if (klass->delegate)
5941 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5942 /* allocate a new object */
5943 mono_mb_emit_ldarg (mb, argnum);
5944 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5945 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
5946 mono_mb_emit_byte (mb, CEE_STIND_REF);
5949 /* dst = *argument */
5950 mono_mb_emit_ldarg (mb, argnum);
5953 mono_mb_emit_byte (mb, CEE_LDIND_I);
5955 mono_mb_emit_stloc (mb, 1);
5957 mono_mb_emit_ldloc (mb, 1);
5958 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5960 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5961 mono_mb_emit_ldloc (mb, 1);
5962 mono_mb_emit_icon (mb, sizeof (MonoObject));
5963 mono_mb_emit_byte (mb, CEE_ADD);
5964 mono_mb_emit_stloc (mb, 1);
5966 /* src = tmp_locals [i] */
5967 mono_mb_emit_ldloc (mb, conv_arg);
5968 mono_mb_emit_stloc (mb, 0);
5970 /* emit valuetype conversion code */
5971 emit_struct_conv (mb, t->data.klass, TRUE);
5973 /* Free the structure returned by the native code */
5974 emit_struct_free (mb, klass, conv_arg);
5976 if (m->orig_conv_args [argnum]) {
5978 * If the native function changed the pointer, then free
5979 * the original structure plus the new pointer.
5981 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5982 mono_mb_emit_ldloc (mb, conv_arg);
5983 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5985 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5986 g_assert (m->orig_conv_args [argnum]);
5988 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5991 mono_mb_emit_ldloc (mb, conv_arg);
5992 mono_mb_emit_icall (mb, g_free);
5994 mono_mb_patch_branch (mb, pos2);
5998 /* Free the original structure passed to native code */
5999 emit_struct_free (mb, klass, conv_arg);
6001 mono_mb_patch_branch (mb, pos);
6004 case MARSHAL_ACTION_PUSH:
6006 mono_mb_emit_ldloc_addr (mb, conv_arg);
6008 mono_mb_emit_ldloc (mb, conv_arg);
6011 case MARSHAL_ACTION_CONV_RESULT:
6012 if (klass->delegate) {
6013 g_assert (!t->byref);
6014 mono_mb_emit_stloc (mb, 0);
6015 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6016 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6017 mono_mb_emit_ldloc (mb, 0);
6018 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6019 mono_mb_emit_stloc (mb, 3);
6020 } else if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6021 spec->native == MONO_NATIVE_IDISPATCH ||
6022 spec->native == MONO_NATIVE_INTERFACE)) {
6023 char *msg = g_strdup ("Marshalling of COM Objects is not yet implemented.");
6024 mono_mb_emit_exception_marshal_directive (mb, msg);
6027 mono_mb_emit_stloc (mb, 0);
6029 /* Make a copy since emit_conv modifies local 0 */
6030 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6031 mono_mb_emit_ldloc (mb, 0);
6032 mono_mb_emit_stloc (mb, loc);
6034 mono_mb_emit_byte (mb, CEE_LDNULL);
6035 mono_mb_emit_stloc (mb, 3);
6037 mono_mb_emit_ldloc (mb, 0);
6038 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6040 /* allocate result object */
6042 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6043 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6044 mono_mb_emit_stloc (mb, 3);
6048 mono_mb_emit_ldloc (mb, 3);
6049 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6050 mono_mb_emit_stloc (mb, 1);
6052 /* emit conversion code */
6053 emit_struct_conv (mb, klass, TRUE);
6055 emit_struct_free (mb, klass, loc);
6057 /* Free the pointer allocated by unmanaged code */
6058 mono_mb_emit_ldloc (mb, loc);
6059 mono_mb_emit_icall (mb, g_free);
6060 mono_mb_patch_branch (mb, pos);
6064 case MARSHAL_ACTION_MANAGED_CONV_IN:
6065 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6067 if (klass->delegate) {
6068 g_assert (!t->byref);
6069 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6070 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6071 mono_mb_emit_ldarg (mb, argnum);
6072 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6073 mono_mb_emit_stloc (mb, conv_arg);
6077 /* The class can not have an automatic layout */
6078 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6079 mono_mb_emit_auto_layout_exception (mb, klass);
6083 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6084 mono_mb_emit_byte (mb, CEE_LDNULL);
6085 mono_mb_emit_stloc (mb, conv_arg);
6090 mono_mb_emit_ldarg (mb, argnum);
6094 /* Check for NULL and raise an exception */
6095 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6097 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6099 mono_mb_patch_branch (mb, pos2);
6100 mono_mb_emit_ldarg (mb, argnum);
6101 mono_mb_emit_byte (mb, CEE_LDIND_I);
6104 mono_mb_emit_stloc (mb, 0);
6106 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6107 mono_mb_emit_stloc (mb, conv_arg);
6109 mono_mb_emit_ldloc (mb, 0);
6110 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6112 /* Create and set dst */
6113 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6114 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6115 mono_mb_emit_stloc (mb, conv_arg);
6116 mono_mb_emit_ldloc (mb, conv_arg);
6117 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6118 mono_mb_emit_stloc (mb, 1);
6120 /* emit valuetype conversion code */
6121 emit_struct_conv (mb, klass, TRUE);
6123 mono_mb_patch_branch (mb, pos);
6126 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6128 /* Check for null */
6129 mono_mb_emit_ldloc (mb, conv_arg);
6130 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6131 mono_mb_emit_ldarg (mb, argnum);
6132 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6133 mono_mb_emit_byte (mb, CEE_STIND_REF);
6134 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6136 mono_mb_patch_branch (mb, pos);
6139 mono_mb_emit_ldloc (mb, conv_arg);
6140 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6141 mono_mb_emit_stloc (mb, 0);
6143 /* Allocate and set dest */
6144 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6145 mono_mb_emit_byte (mb, CEE_CONV_I);
6146 mono_mb_emit_icall (mb, mono_marshal_alloc);
6147 mono_mb_emit_stloc (mb, 1);
6149 /* Update argument pointer */
6150 mono_mb_emit_ldarg (mb, argnum);
6151 mono_mb_emit_ldloc (mb, 1);
6152 mono_mb_emit_byte (mb, CEE_STIND_I);
6154 /* emit valuetype conversion code */
6155 emit_struct_conv (mb, klass, FALSE);
6157 mono_mb_patch_branch (mb, pos2);
6159 /* byval [Out] marshalling */
6161 /* FIXME: Handle null */
6164 mono_mb_emit_ldloc (mb, conv_arg);
6165 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6166 mono_mb_emit_stloc (mb, 0);
6169 mono_mb_emit_ldarg (mb, argnum);
6170 mono_mb_emit_stloc (mb, 1);
6172 /* emit valuetype conversion code */
6173 emit_struct_conv (mb, klass, FALSE);
6177 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6178 if (klass->delegate) {
6179 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6180 mono_mb_emit_stloc (mb, 3);
6184 /* The class can not have an automatic layout */
6185 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6186 mono_mb_emit_auto_layout_exception (mb, klass);
6190 mono_mb_emit_stloc (mb, 0);
6191 /* Check for null */
6192 mono_mb_emit_ldloc (mb, 0);
6193 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6194 mono_mb_emit_byte (mb, CEE_LDNULL);
6195 mono_mb_emit_stloc (mb, 3);
6196 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6198 mono_mb_patch_branch (mb, pos);
6201 mono_mb_emit_ldloc (mb, 0);
6202 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6203 mono_mb_emit_stloc (mb, 0);
6205 /* Allocate and set dest */
6206 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6207 mono_mb_emit_byte (mb, CEE_CONV_I);
6208 mono_mb_emit_icall (mb, mono_marshal_alloc);
6209 mono_mb_emit_byte (mb, CEE_DUP);
6210 mono_mb_emit_stloc (mb, 1);
6211 mono_mb_emit_stloc (mb, 3);
6213 emit_struct_conv (mb, klass, FALSE);
6215 mono_mb_patch_branch (mb, pos2);
6219 g_assert_not_reached ();
6226 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6227 MonoMarshalSpec *spec,
6228 int conv_arg, MonoType **conv_arg_type,
6229 MarshalAction action)
6231 MonoMethodBuilder *mb = m->mb;
6232 MonoClass *klass = mono_class_from_mono_type (t);
6233 gboolean need_convert, need_free;
6234 MonoMarshalNative encoding;
6236 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6239 case MARSHAL_ACTION_CONV_IN:
6240 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6241 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6243 if (klass->element_class->blittable) {
6244 mono_mb_emit_ldarg (mb, argnum);
6246 mono_mb_emit_byte (mb, CEE_LDIND_I);
6247 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6248 mono_mb_emit_stloc (mb, conv_arg);
6251 guint32 label1, label2, label3;
6252 int index_var, src_var, dest_ptr, esize;
6253 MonoMarshalConv conv;
6254 gboolean is_string = FALSE;
6256 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6258 eklass = klass->element_class;
6260 if (eklass == mono_defaults.string_class) {
6262 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6264 else if (eklass == mono_defaults.stringbuilder_class) {
6266 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6271 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6272 mono_mb_emit_ldarg (mb, argnum);
6274 mono_mb_emit_byte (mb, CEE_LDIND_I);
6275 mono_mb_emit_stloc (mb, src_var);
6278 mono_mb_emit_ldloc (mb, src_var);
6279 mono_mb_emit_stloc (mb, conv_arg);
6280 mono_mb_emit_ldloc (mb, src_var);
6281 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6285 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6286 MonoException *exc = mono_get_exception_not_implemented (msg);
6289 mono_raise_exception (exc);
6294 esize = sizeof (gpointer);
6296 esize = mono_class_native_size (eklass, NULL);
6298 /* allocate space for the native struct and store the address */
6299 mono_mb_emit_icon (mb, esize);
6300 mono_mb_emit_ldloc (mb, src_var);
6301 mono_mb_emit_byte (mb, CEE_LDLEN);
6303 if (eklass == mono_defaults.string_class) {
6304 /* Make the array bigger for the terminating null */
6305 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6306 mono_mb_emit_byte (mb, CEE_ADD);
6308 mono_mb_emit_byte (mb, CEE_MUL);
6309 mono_mb_emit_byte (mb, CEE_PREFIX1);
6310 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6311 mono_mb_emit_stloc (mb, conv_arg);
6313 mono_mb_emit_ldloc (mb, conv_arg);
6314 mono_mb_emit_stloc (mb, dest_ptr);
6316 /* Emit marshalling loop */
6317 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6318 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6319 mono_mb_emit_stloc (mb, index_var);
6321 mono_mb_emit_ldloc (mb, index_var);
6322 mono_mb_emit_ldloc (mb, src_var);
6323 mono_mb_emit_byte (mb, CEE_LDLEN);
6324 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6326 /* Emit marshalling code */
6329 mono_mb_emit_ldloc (mb, dest_ptr);
6330 mono_mb_emit_ldloc (mb, src_var);
6331 mono_mb_emit_ldloc (mb, index_var);
6332 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6333 mono_mb_emit_icall (mb, conv_to_icall (conv));
6334 mono_mb_emit_byte (mb, CEE_STIND_I);
6336 /* set the src_ptr */
6337 mono_mb_emit_ldloc (mb, src_var);
6338 mono_mb_emit_ldloc (mb, index_var);
6339 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6340 mono_mb_emit_stloc (mb, 0);
6343 mono_mb_emit_ldloc (mb, dest_ptr);
6344 mono_mb_emit_stloc (mb, 1);
6346 /* emit valuetype conversion code */
6347 emit_struct_conv (mb, eklass, FALSE);
6350 mono_mb_emit_add_to_local (mb, index_var, 1);
6351 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6353 mono_mb_emit_byte (mb, CEE_BR);
6354 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6356 mono_mb_patch_branch (mb, label3);
6358 if (eklass == mono_defaults.string_class) {
6359 /* Null terminate */
6360 mono_mb_emit_ldloc (mb, dest_ptr);
6361 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6362 mono_mb_emit_byte (mb, CEE_STIND_REF);
6365 mono_mb_patch_branch (mb, label1);
6370 case MARSHAL_ACTION_CONV_OUT:
6371 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6372 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);
6373 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6376 if (need_convert || need_free) {
6377 /* FIXME: Optimize blittable case */
6379 guint32 label1, label2, label3;
6380 int index_var, src_ptr, loc, esize;
6382 eklass = klass->element_class;
6383 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6384 esize = sizeof (gpointer);
6386 esize = mono_class_native_size (eklass, NULL);
6387 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6388 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6391 mono_mb_emit_ldarg (mb, argnum);
6393 mono_mb_emit_byte (mb, CEE_LDIND_I);
6394 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6396 mono_mb_emit_ldloc (mb, conv_arg);
6397 mono_mb_emit_stloc (mb, src_ptr);
6399 /* Emit marshalling loop */
6400 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6401 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6402 mono_mb_emit_stloc (mb, index_var);
6404 mono_mb_emit_ldloc (mb, index_var);
6405 mono_mb_emit_ldarg (mb, argnum);
6407 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6408 mono_mb_emit_byte (mb, CEE_LDLEN);
6409 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6411 /* Emit marshalling code */
6413 if (eklass == mono_defaults.stringbuilder_class) {
6414 gboolean need_free2;
6415 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6417 g_assert (conv != -1);
6420 mono_mb_emit_ldarg (mb, argnum);
6422 mono_mb_emit_byte (mb, CEE_LDIND_I);
6423 mono_mb_emit_ldloc (mb, index_var);
6424 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6427 mono_mb_emit_ldloc (mb, src_ptr);
6428 mono_mb_emit_byte (mb, CEE_LDIND_I);
6430 mono_mb_emit_icall (mb, conv_to_icall (conv));
6434 mono_mb_emit_ldloc (mb, src_ptr);
6435 mono_mb_emit_byte (mb, CEE_LDIND_I);
6437 mono_mb_emit_icall (mb, mono_marshal_free);
6440 else if (eklass == mono_defaults.string_class) {
6443 mono_mb_emit_ldloc (mb, src_ptr);
6444 mono_mb_emit_byte (mb, CEE_LDIND_I);
6446 mono_mb_emit_icall (mb, mono_marshal_free);
6451 /* set the src_ptr */
6452 mono_mb_emit_ldloc (mb, src_ptr);
6453 mono_mb_emit_stloc (mb, 0);
6456 mono_mb_emit_ldarg (mb, argnum);
6458 mono_mb_emit_byte (mb, CEE_LDIND_I);
6459 mono_mb_emit_ldloc (mb, index_var);
6460 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6461 mono_mb_emit_stloc (mb, 1);
6463 /* emit valuetype conversion code */
6464 emit_struct_conv (mb, eklass, TRUE);
6468 mono_mb_emit_ldloc (mb, src_ptr);
6469 mono_mb_emit_stloc (mb, loc);
6470 mono_mb_emit_ldloc (mb, loc);
6472 emit_struct_free (mb, eklass, loc);
6476 mono_mb_emit_add_to_local (mb, index_var, 1);
6477 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6479 mono_mb_emit_byte (mb, CEE_BR);
6480 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6482 mono_mb_patch_branch (mb, label1);
6483 mono_mb_patch_branch (mb, label3);
6487 case MARSHAL_ACTION_PUSH:
6489 mono_mb_emit_ldloc_addr (mb, conv_arg);
6491 mono_mb_emit_ldloc (mb, conv_arg);
6494 case MARSHAL_ACTION_CONV_RESULT:
6495 /* fixme: we need conversions here */
6496 mono_mb_emit_stloc (mb, 3);
6499 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6501 guint32 label1, label2, label3;
6502 int index_var, src_ptr, loc, esize, param_num, num_elem;
6503 MonoMarshalConv conv;
6504 gboolean is_string = FALSE;
6506 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6507 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6510 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6511 mono_mb_emit_exception_marshal_directive (mb, msg);
6515 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6516 mono_mb_emit_exception_marshal_directive (mb, msg);
6519 if (spec->native != MONO_NATIVE_LPARRAY) {
6520 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6521 mono_mb_emit_exception_marshal_directive (mb, msg);
6525 /* FIXME: t is from the method which is wrapped, not the delegate type */
6526 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6528 param_num = spec->data.array_data.param_num;
6529 num_elem = spec->data.array_data.num_elem;
6530 if (spec->data.array_data.elem_mult == 0)
6531 /* param_num is not specified */
6534 if (param_num == -1) {
6535 if (num_elem <= 0) {
6536 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6537 mono_mb_emit_exception_marshal_directive (mb, msg);
6542 /* FIXME: Optimize blittable case */
6544 eklass = klass->element_class;
6545 if (eklass == mono_defaults.string_class) {
6547 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6549 else if (eklass == mono_defaults.stringbuilder_class) {
6551 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6556 mono_marshal_load_type_info (eklass);
6559 esize = sizeof (gpointer);
6561 esize = mono_class_native_size (eklass, NULL);
6562 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6563 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6565 mono_mb_emit_byte (mb, CEE_LDNULL);
6566 mono_mb_emit_stloc (mb, conv_arg);
6568 /* Check param index */
6569 if (param_num != -1) {
6570 if (param_num >= m->sig->param_count) {
6571 char *msg = g_strdup ("Array size control parameter index is out of range.");
6572 mono_mb_emit_exception_marshal_directive (mb, msg);
6575 switch (m->sig->params [param_num]->type) {
6588 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6589 mono_mb_emit_exception_marshal_directive (mb, msg);
6596 mono_mb_emit_ldarg (mb, argnum);
6597 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6599 mono_mb_emit_ldarg (mb, argnum);
6600 mono_mb_emit_stloc (mb, src_ptr);
6602 /* Create managed array */
6604 * The LPArray marshalling spec says that sometimes param_num starts
6605 * from 1, sometimes it starts from 0. But MS seems to allways start
6609 if (param_num == -1)
6610 mono_mb_emit_icon (mb, num_elem);
6612 /* FIXME: Add the two together */
6613 mono_mb_emit_ldarg (mb, param_num);
6615 mono_mb_emit_icon (mb, num_elem);
6616 mono_mb_emit_byte (mb, CEE_ADD);
6620 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6621 mono_mb_emit_stloc (mb, conv_arg);
6623 if (eklass->blittable) {
6624 mono_mb_emit_ldloc (mb, conv_arg);
6625 mono_mb_emit_byte (mb, CEE_CONV_I);
6626 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6627 mono_mb_emit_byte (mb, CEE_ADD);
6628 mono_mb_emit_ldarg (mb, argnum);
6629 mono_mb_emit_ldloc (mb, conv_arg);
6630 mono_mb_emit_byte (mb, CEE_LDLEN);
6631 mono_mb_emit_icon (mb, esize);
6632 mono_mb_emit_byte (mb, CEE_MUL);
6633 mono_mb_emit_byte (mb, CEE_PREFIX1);
6634 mono_mb_emit_byte (mb, CEE_CPBLK);
6638 /* Emit marshalling loop */
6639 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6640 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6641 mono_mb_emit_stloc (mb, index_var);
6643 mono_mb_emit_ldloc (mb, index_var);
6644 mono_mb_emit_ldloc (mb, conv_arg);
6645 mono_mb_emit_byte (mb, CEE_LDLEN);
6646 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6648 /* Emit marshalling code */
6650 g_assert (conv != -1);
6652 mono_mb_emit_ldloc (mb, conv_arg);
6653 mono_mb_emit_ldloc (mb, index_var);
6655 mono_mb_emit_ldloc (mb, src_ptr);
6656 mono_mb_emit_byte (mb, CEE_LDIND_I);
6658 mono_mb_emit_icall (mb, conv_to_icall (conv));
6659 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6662 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6663 mono_mb_emit_exception_marshal_directive (mb, msg);
6667 mono_mb_emit_add_to_local (mb, index_var, 1);
6668 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6670 mono_mb_emit_byte (mb, CEE_BR);
6671 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6673 mono_mb_patch_branch (mb, label1);
6674 mono_mb_patch_branch (mb, label3);
6678 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6680 guint32 label1, label2, label3;
6681 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6682 MonoMarshalConv conv;
6683 gboolean is_string = FALSE;
6686 /* Already handled in CONV_IN */
6689 /* These are already checked in CONV_IN */
6690 g_assert (!t->byref);
6691 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6692 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6694 param_num = spec->data.array_data.param_num;
6695 num_elem = spec->data.array_data.num_elem;
6697 if (spec->data.array_data.elem_mult == 0)
6698 /* param_num is not specified */
6701 if (param_num == -1) {
6702 if (num_elem <= 0) {
6703 g_assert_not_reached ();
6707 /* FIXME: Optimize blittable case */
6709 eklass = klass->element_class;
6710 if (eklass == mono_defaults.string_class) {
6712 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6714 else if (eklass == mono_defaults.stringbuilder_class) {
6716 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6721 mono_marshal_load_type_info (eklass);
6724 esize = sizeof (gpointer);
6726 esize = mono_class_native_size (eklass, NULL);
6728 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6729 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6732 mono_mb_emit_ldloc (mb, conv_arg);
6733 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6735 mono_mb_emit_ldarg (mb, argnum);
6736 mono_mb_emit_stloc (mb, dest_ptr);
6738 if (eklass->blittable) {
6740 mono_mb_emit_ldarg (mb, argnum);
6742 mono_mb_emit_ldloc (mb, conv_arg);
6743 mono_mb_emit_byte (mb, CEE_CONV_I);
6744 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6745 mono_mb_emit_byte (mb, CEE_ADD);
6747 mono_mb_emit_ldloc (mb, conv_arg);
6748 mono_mb_emit_byte (mb, CEE_LDLEN);
6749 mono_mb_emit_icon (mb, esize);
6750 mono_mb_emit_byte (mb, CEE_MUL);
6751 mono_mb_emit_byte (mb, CEE_PREFIX1);
6752 mono_mb_emit_byte (mb, CEE_CPBLK);
6756 /* Emit marshalling loop */
6757 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6758 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6759 mono_mb_emit_stloc (mb, index_var);
6761 mono_mb_emit_ldloc (mb, index_var);
6762 mono_mb_emit_ldloc (mb, conv_arg);
6763 mono_mb_emit_byte (mb, CEE_LDLEN);
6764 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6766 /* Emit marshalling code */
6768 g_assert (conv != -1);
6771 mono_mb_emit_ldloc (mb, dest_ptr);
6774 mono_mb_emit_ldloc (mb, conv_arg);
6775 mono_mb_emit_ldloc (mb, index_var);
6777 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6779 mono_mb_emit_icall (mb, conv_to_icall (conv));
6780 mono_mb_emit_byte (mb, CEE_STIND_I);
6783 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6784 mono_mb_emit_exception_marshal_directive (mb, msg);
6788 mono_mb_emit_add_to_local (mb, index_var, 1);
6789 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6791 mono_mb_emit_byte (mb, CEE_BR);
6792 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6794 mono_mb_patch_branch (mb, label1);
6795 mono_mb_patch_branch (mb, label3);
6799 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6801 guint32 label1, label2, label3;
6802 int index_var, src, dest, esize;
6803 MonoMarshalConv conv = -1;
6804 gboolean is_string = FALSE;
6806 g_assert (!t->byref);
6808 eklass = klass->element_class;
6810 mono_marshal_load_type_info (eklass);
6812 if (eklass == mono_defaults.string_class) {
6814 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6817 g_assert_not_reached ();
6821 esize = sizeof (gpointer);
6823 esize = mono_class_native_size (eklass, NULL);
6825 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6826 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6828 mono_mb_emit_stloc (mb, src);
6829 mono_mb_emit_ldloc (mb, src);
6830 mono_mb_emit_stloc (mb, 3);
6832 /* Check for null */
6833 mono_mb_emit_ldloc (mb, src);
6834 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6836 /* Allocate native array */
6837 mono_mb_emit_icon (mb, esize);
6838 mono_mb_emit_ldloc (mb, src);
6839 mono_mb_emit_byte (mb, CEE_LDLEN);
6841 if (eklass == mono_defaults.string_class) {
6842 /* Make the array bigger for the terminating null */
6843 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6844 mono_mb_emit_byte (mb, CEE_ADD);
6846 mono_mb_emit_byte (mb, CEE_MUL);
6847 mono_mb_emit_icall (mb, mono_marshal_alloc);
6848 mono_mb_emit_stloc (mb, dest);
6849 mono_mb_emit_ldloc (mb, dest);
6850 mono_mb_emit_stloc (mb, 3);
6852 /* Emit marshalling loop */
6853 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6854 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6855 mono_mb_emit_stloc (mb, index_var);
6857 mono_mb_emit_ldloc (mb, index_var);
6858 mono_mb_emit_ldloc (mb, src);
6859 mono_mb_emit_byte (mb, CEE_LDLEN);
6860 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6862 /* Emit marshalling code */
6864 g_assert (conv != -1);
6867 mono_mb_emit_ldloc (mb, dest);
6870 mono_mb_emit_ldloc (mb, src);
6871 mono_mb_emit_ldloc (mb, index_var);
6873 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6875 mono_mb_emit_icall (mb, conv_to_icall (conv));
6876 mono_mb_emit_byte (mb, CEE_STIND_I);
6879 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6880 mono_mb_emit_exception_marshal_directive (mb, msg);
6884 mono_mb_emit_add_to_local (mb, index_var, 1);
6885 mono_mb_emit_add_to_local (mb, dest, esize);
6887 mono_mb_emit_byte (mb, CEE_BR);
6888 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
6890 mono_mb_patch_branch (mb, label3);
6891 mono_mb_patch_branch (mb, label1);
6895 g_assert_not_reached ();
6902 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6903 MonoMarshalSpec *spec,
6904 int conv_arg, MonoType **conv_arg_type,
6905 MarshalAction action)
6907 MonoMethodBuilder *mb = m->mb;
6910 case MARSHAL_ACTION_CONV_IN: {
6911 MonoType *local_type;
6912 int variant_bool = 0;
6916 local_type = &mono_defaults.int32_class->byval_arg;
6918 switch (spec->native) {
6919 case MONO_NATIVE_I1:
6920 local_type = &mono_defaults.byte_class->byval_arg;
6922 case MONO_NATIVE_VARIANTBOOL:
6923 local_type = &mono_defaults.int16_class->byval_arg;
6927 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6928 local_type = &mono_defaults.int32_class->byval_arg;
6932 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6933 conv_arg = mono_mb_add_local (mb, local_type);
6934 mono_mb_emit_ldarg (mb, argnum);
6935 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6937 mono_mb_emit_byte (mb, CEE_NEG);
6938 mono_mb_emit_stloc (mb, conv_arg);
6942 case MARSHAL_ACTION_CONV_OUT:
6945 mono_mb_emit_ldarg (mb, argnum);
6946 mono_mb_emit_ldloc (mb, conv_arg);
6947 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
6948 mono_mb_emit_byte (mb, CEE_NEG);
6949 mono_mb_emit_byte (mb, CEE_STIND_I1);
6952 case MARSHAL_ACTION_PUSH:
6954 mono_mb_emit_ldloc_addr (mb, conv_arg);
6956 mono_mb_emit_ldarg (mb, argnum);
6959 case MARSHAL_ACTION_CONV_RESULT:
6960 /* maybe we need to make sure that it fits within 8 bits */
6961 mono_mb_emit_stloc (mb, 3);
6965 g_assert_not_reached ();
6972 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6973 MonoMarshalSpec *spec, int conv_arg,
6974 MonoType **conv_arg_type, MarshalAction action)
6976 MonoMethodBuilder *mb = m->mb;
6979 case MARSHAL_ACTION_CONV_IN:
6980 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
6981 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6982 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6986 case MARSHAL_ACTION_PUSH:
6987 mono_mb_emit_ldarg (mb, argnum);
6990 case MARSHAL_ACTION_CONV_RESULT:
6991 /* no conversions necessary */
6992 mono_mb_emit_stloc (mb, 3);
7003 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7004 MonoMarshalSpec *spec, int conv_arg,
7005 MonoType **conv_arg_type, MarshalAction action)
7007 MonoMethodBuilder *mb = m->mb;
7010 case MARSHAL_ACTION_PUSH:
7011 /* fixme: dont know how to marshal that. We cant simply
7012 * convert it to a one byte UTF8 character, because an
7013 * unicode character may need more that one byte in UTF8 */
7014 mono_mb_emit_ldarg (mb, argnum);
7017 case MARSHAL_ACTION_CONV_RESULT:
7018 /* fixme: we need conversions here */
7019 mono_mb_emit_stloc (mb, 3);
7030 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7031 MonoMarshalSpec *spec, int conv_arg,
7032 MonoType **conv_arg_type, MarshalAction action)
7034 MonoMethodBuilder *mb = m->mb;
7037 case MARSHAL_ACTION_PUSH:
7038 mono_mb_emit_ldarg (mb, argnum);
7041 case MARSHAL_ACTION_CONV_RESULT:
7042 /* no conversions necessary */
7043 mono_mb_emit_stloc (mb, 3);
7054 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7055 MonoMarshalSpec *spec, int conv_arg,
7056 MonoType **conv_arg_type, MarshalAction action)
7058 /* Ensure that we have marshalling info for this param */
7059 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7061 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7062 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7064 if (spec && spec->native == MONO_NATIVE_ASANY)
7065 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7068 case MONO_TYPE_VALUETYPE:
7069 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7070 case MONO_TYPE_STRING:
7071 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7072 case MONO_TYPE_CLASS:
7073 case MONO_TYPE_OBJECT:
7074 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7075 case MONO_TYPE_ARRAY:
7076 case MONO_TYPE_SZARRAY:
7077 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7078 case MONO_TYPE_BOOLEAN:
7079 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7081 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7082 case MONO_TYPE_CHAR:
7083 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7096 case MONO_TYPE_FNPTR:
7097 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7104 * mono_marshal_emit_native_wrapper:
7105 * @image: the image to use for looking up custom marshallers
7106 * @sig: The signature of the native function
7107 * @piinfo: Marshalling information
7108 * @mspecs: Marshalling information
7109 * @func: the native function to call
7111 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7114 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7116 EmitMarshalContext m;
7117 MonoMethodSignature *csig;
7119 int i, argnum, *tmp_locals;
7121 static MonoMethodSignature *get_last_error_sig = NULL;
7126 /* we copy the signature, so that we can set pinvoke to 0 */
7127 csig = signature_dup (mb->method->klass->image, sig);
7132 /* we allocate local for use with emit_struct_conv() */
7133 /* allocate local 0 (pointer) src_ptr */
7134 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7135 /* allocate local 1 (pointer) dst_ptr */
7136 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7137 /* allocate local 2 (boolean) delete_old */
7138 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7140 /* delete_old = FALSE */
7141 mono_mb_emit_icon (mb, 0);
7142 mono_mb_emit_stloc (mb, 2);
7144 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7145 /* allocate local 3 to store the return value */
7146 mono_mb_add_local (mb, sig->ret);
7149 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7150 /* Return type custom marshaling */
7152 * Since we can't determine the return type of the unmanaged function,
7153 * we assume it returns a pointer, and pass that pointer to
7154 * MarshalNativeToManaged.
7156 csig->ret = &mono_defaults.int_class->byval_arg;
7159 /* we first do all conversions */
7160 tmp_locals = alloca (sizeof (int) * sig->param_count);
7161 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7163 for (i = 0; i < sig->param_count; i ++) {
7164 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7167 /* push all arguments */
7170 mono_mb_emit_byte (mb, CEE_LDARG_0);
7173 for (i = 0; i < sig->param_count; i++) {
7174 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7177 /* call the native method */
7178 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7179 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7182 mono_mb_emit_native_call (mb, csig, func);
7185 /* Set LastError if needed */
7186 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7187 if (!get_last_error_sig) {
7188 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7189 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7190 get_last_error_sig->pinvoke = 1;
7193 #ifdef PLATFORM_WIN32
7195 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7196 * clobber its value.
7198 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7199 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7201 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7205 /* convert the result */
7206 if (!sig->ret->byref) {
7207 MonoMarshalSpec *spec = mspecs [0];
7208 type = sig->ret->type;
7210 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7211 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7216 case MONO_TYPE_VOID:
7218 case MONO_TYPE_VALUETYPE:
7219 klass = sig->ret->data.klass;
7220 if (klass->enumtype) {
7221 type = sig->ret->data.klass->enum_basetype->type;
7224 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7238 case MONO_TYPE_FNPTR:
7239 case MONO_TYPE_STRING:
7240 case MONO_TYPE_CLASS:
7241 case MONO_TYPE_OBJECT:
7242 case MONO_TYPE_BOOLEAN:
7243 case MONO_TYPE_ARRAY:
7244 case MONO_TYPE_SZARRAY:
7245 case MONO_TYPE_CHAR:
7247 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7249 case MONO_TYPE_TYPEDBYREF:
7251 g_warning ("return type 0x%02x unknown", sig->ret->type);
7252 g_assert_not_reached ();
7256 mono_mb_emit_stloc (mb, 3);
7260 * Need to call this after converting the result since MONO_VTADDR needs
7261 * to be adjacent to the call instruction.
7263 emit_thread_interrupt_checkpoint (mb);
7265 /* we need to convert byref arguments back and free string arrays */
7266 for (i = 0; i < sig->param_count; i++) {
7267 MonoType *t = sig->params [i];
7268 MonoMarshalSpec *spec = mspecs [i + 1];
7270 argnum = i + sig->hasthis;
7272 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7273 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7278 case MONO_TYPE_STRING:
7279 case MONO_TYPE_VALUETYPE:
7280 case MONO_TYPE_CLASS:
7281 case MONO_TYPE_OBJECT:
7282 case MONO_TYPE_SZARRAY:
7283 case MONO_TYPE_BOOLEAN:
7284 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7289 if (!MONO_TYPE_IS_VOID(sig->ret))
7290 mono_mb_emit_ldloc (mb, 3);
7292 mono_mb_emit_byte (mb, CEE_RET);
7296 * mono_marshal_get_native_wrapper:
7297 * @method: The MonoMethod to wrap.
7299 * generates IL code for the pinvoke wrapper (the generated method
7300 * calls the unmanaged code in piinfo->addr)
7303 mono_marshal_get_native_wrapper (MonoMethod *method)
7305 MonoMethodSignature *sig, *csig;
7306 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7307 MonoMethodBuilder *mb;
7308 MonoMarshalSpec **mspecs;
7311 gboolean pinvoke = FALSE;
7314 const char *exc_class = "MissingMethodException";
7315 const char *exc_arg = NULL;
7317 g_assert (method != NULL);
7318 g_assert (mono_method_signature (method)->pinvoke);
7320 cache = method->klass->image->native_wrapper_cache;
7321 if ((res = mono_marshal_find_in_cache (cache, method)))
7324 if (MONO_CLASS_IS_IMPORT (method->klass))
7325 return cominterop_get_native_wrapper (method);
7327 sig = mono_method_signature (method);
7329 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7330 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7333 if (!piinfo->addr) {
7335 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7337 piinfo->addr = mono_lookup_internal_call (method);
7340 /* hack - redirect certain string constructors to CreateString */
7341 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7342 g_assert (!pinvoke);
7343 g_assert (method->string_ctor);
7344 g_assert (sig->hasthis);
7346 /* CreateString returns a value */
7347 csig = signature_dup (method->klass->image, sig);
7348 csig->ret = &mono_defaults.string_class->byval_arg;
7352 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7353 if (!strcmp ("CreateString", res->name) &&
7354 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7356 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7357 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7359 /* create a wrapper to preserve .ctor in stack trace */
7360 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7362 mono_mb_emit_byte (mb, CEE_LDARG_0);
7363 for (i = 1; i <= csig->param_count; i++)
7364 mono_mb_emit_ldarg (mb, i);
7365 mono_mb_emit_managed_call (mb, res, NULL);
7366 mono_mb_emit_byte (mb, CEE_RET);
7368 /* use native_wrapper_cache because internal calls are looked up there */
7369 res = mono_mb_create_and_cache (cache, method,
7370 mb, csig, csig->param_count + 1);
7378 /* exception will be thrown */
7379 piinfo->addr = NULL;
7380 g_warning ("cannot find CreateString for .ctor");
7383 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7385 mb->method->save_lmf = 1;
7387 if (!piinfo->addr) {
7388 mono_mb_emit_exception (mb, exc_class, exc_arg);
7389 csig = signature_dup (method->klass->image, sig);
7391 res = mono_mb_create_and_cache (cache, method,
7392 mb, csig, csig->param_count + 16);
7397 /* internal calls: we simply push all arguments and call the method (no conversions) */
7398 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7400 /* hack - string constructors returns a value */
7401 if (method->string_ctor) {
7402 csig = signature_dup (method->klass->image, sig);
7403 csig->ret = &mono_defaults.string_class->byval_arg;
7408 mono_mb_emit_byte (mb, CEE_LDARG_0);
7410 for (i = 0; i < sig->param_count; i++)
7411 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7413 g_assert (piinfo->addr);
7414 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7415 emit_thread_interrupt_checkpoint (mb);
7416 mono_mb_emit_byte (mb, CEE_RET);
7418 csig = signature_dup (method->klass->image, csig);
7420 res = mono_mb_create_and_cache (cache, method,
7421 mb, csig, csig->param_count + 16);
7428 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7429 mono_method_get_marshal_info (method, mspecs);
7431 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr);
7433 csig = signature_dup (method->klass->image, sig);
7435 res = mono_mb_create_and_cache (cache, method,
7436 mb, csig, csig->param_count + 16);
7439 for (i = sig->param_count; i >= 0; i--)
7441 mono_metadata_free_marshal_spec (mspecs [i]);
7444 /* 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)); */
7450 * mono_marshal_get_native_func_wrapper:
7451 * @image: The image to use for memory allocation and for looking up custom marshallers.
7452 * @sig: The signature of the function
7453 * @func: The native function to wrap
7455 * Returns a wrapper method around native functions, similar to the pinvoke
7459 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7460 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7462 MonoMethodSignature *csig;
7464 MonoMethodBuilder *mb;
7469 cache = image->native_wrapper_cache;
7470 if ((res = mono_marshal_find_in_cache (cache, func)))
7473 name = g_strdup_printf ("wrapper_native_%p", func);
7474 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7475 mb->method->save_lmf = 1;
7477 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func);
7479 csig = signature_dup (image, sig);
7481 res = mono_mb_create_and_cache (cache, func,
7482 mb, csig, csig->param_count + 16);
7485 /* 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)); */
7491 * generates IL code to call managed methods from unmanaged code
7494 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
7496 static MonoClass *UnmanagedFunctionPointerAttribute;
7497 MonoMethodSignature *sig, *csig, *invoke_sig;
7498 MonoMethodBuilder *mb;
7499 MonoMethod *res, *invoke;
7500 MonoMarshalSpec **mspecs;
7501 MonoMethodPInvoke piinfo;
7504 EmitMarshalContext m;
7506 g_assert (method != NULL);
7507 g_assert (!mono_method_signature (method)->pinvoke);
7510 * FIXME: Should cache the method+delegate type pair, since the same method
7511 * could be called with different delegates, thus different marshalling
7514 cache = method->klass->image->managed_wrapper_cache;
7515 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
7518 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
7519 invoke_sig = mono_method_signature (invoke);
7521 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7522 mono_method_get_marshal_info (invoke, mspecs);
7524 sig = mono_method_signature (method);
7526 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7528 /* allocate local 0 (pointer) src_ptr */
7529 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7530 /* allocate local 1 (pointer) dst_ptr */
7531 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7532 /* allocate local 2 (boolean) delete_old */
7533 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7535 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7536 /* allocate local 3 to store the return value */
7537 mono_mb_add_local (mb, sig->ret);
7540 mono_mb_emit_icon (mb, 0);
7541 mono_mb_emit_stloc (mb, 2);
7543 /* we copy the signature, so that we can modify it */
7544 csig = signature_dup (method->klass->image, sig);
7553 m.image = method->klass->image;
7555 #ifdef PLATFORM_WIN32
7557 * Under windows, delegates passed to native code must use the STDCALL
7558 * calling convention.
7560 csig->call_convention = MONO_CALL_STDCALL;
7563 /* Change default calling convention if needed */
7564 /* Why is this a modopt ? */
7565 if (invoke_sig->ret && invoke_sig->ret->num_mods) {
7566 for (i = 0; i < invoke_sig->ret->num_mods; ++i) {
7567 MonoClass *cmod_class = mono_class_get (delegate_klass->image, invoke_sig->ret->modifiers [i].token);
7568 g_assert (cmod_class);
7569 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7570 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7571 csig->call_convention = MONO_CALL_C;
7572 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7573 csig->call_convention = MONO_CALL_STDCALL;
7574 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7575 csig->call_convention = MONO_CALL_FASTCALL;
7576 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7577 csig->call_convention = MONO_CALL_THISCALL;
7582 /* Handle the UnmanagedFunctionPointerAttribute */
7583 if (!UnmanagedFunctionPointerAttribute)
7584 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7586 /* The attribute is only available in Net 2.0 */
7587 if (UnmanagedFunctionPointerAttribute) {
7588 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
7589 MonoCustomAttrInfo *cinfo;
7592 * The pinvoke attributes are stored in a real custom attribute so we have to
7595 cinfo = mono_custom_attrs_from_class (delegate_klass);
7597 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
7599 memset (&piinfo, 0, sizeof (piinfo));
7601 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
7603 csig->call_convention = attr->call_conv - 1;
7606 mono_custom_attrs_free (cinfo);
7610 /* fixme: howto handle this ? */
7613 mono_mb_emit_ptr (mb, this);
7616 g_assert_not_reached ();
7620 /* we first do all conversions */
7621 tmp_locals = alloca (sizeof (int) * sig->param_count);
7622 for (i = 0; i < sig->param_count; i ++) {
7623 MonoType *t = sig->params [i];
7626 case MONO_TYPE_OBJECT:
7627 case MONO_TYPE_CLASS:
7628 case MONO_TYPE_VALUETYPE:
7629 case MONO_TYPE_ARRAY:
7630 case MONO_TYPE_SZARRAY:
7631 case MONO_TYPE_STRING:
7632 tmp_locals [i] = emit_marshal (&m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7641 emit_thread_interrupt_checkpoint (mb);
7643 for (i = 0; i < sig->param_count; i++) {
7644 MonoType *t = sig->params [i];
7646 if (tmp_locals [i]) {
7648 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7650 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7653 mono_mb_emit_ldarg (mb, i);
7656 mono_mb_emit_managed_call (mb, method, NULL);
7658 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7659 emit_marshal (&m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7662 if (!sig->ret->byref) {
7663 switch (sig->ret->type) {
7664 case MONO_TYPE_VOID:
7666 case MONO_TYPE_BOOLEAN:
7680 case MONO_TYPE_OBJECT:
7681 mono_mb_emit_stloc (mb, 3);
7683 case MONO_TYPE_STRING:
7684 csig->ret = &mono_defaults.int_class->byval_arg;
7685 emit_marshal (&m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7687 case MONO_TYPE_VALUETYPE:
7688 case MONO_TYPE_CLASS:
7689 case MONO_TYPE_SZARRAY:
7690 emit_marshal (&m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7693 g_warning ("return type 0x%02x unknown", sig->ret->type);
7694 g_assert_not_reached ();
7697 mono_mb_emit_stloc (mb, 3);
7700 /* Convert byref arguments back */
7701 for (i = 0; i < sig->param_count; i ++) {
7702 MonoType *t = sig->params [i];
7703 MonoMarshalSpec *spec = mspecs [i + 1];
7705 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7706 emit_marshal (&m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7708 else if (t->byref) {
7710 case MONO_TYPE_CLASS:
7711 case MONO_TYPE_VALUETYPE:
7712 emit_marshal (&m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7716 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7717 /* The [Out] information is encoded in the delegate signature */
7719 case MONO_TYPE_SZARRAY:
7720 case MONO_TYPE_CLASS:
7721 case MONO_TYPE_VALUETYPE:
7722 emit_marshal (&m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7725 g_assert_not_reached ();
7731 mono_mb_emit_ldloc (mb, m.retobj_var);
7732 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7733 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m.retobj_class);
7736 if (!MONO_TYPE_IS_VOID(sig->ret))
7737 mono_mb_emit_ldloc (mb, 3);
7738 mono_mb_emit_byte (mb, CEE_RET);
7742 res = mono_mb_create_and_cache (cache, method,
7743 mb, csig, sig->param_count + 16);
7746 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
7750 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7752 mono_metadata_free_marshal_spec (mspecs [i]);
7755 /* 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)); */
7760 static MonoReflectionType *
7761 type_from_handle (MonoType *handle)
7763 MonoDomain *domain = mono_domain_get ();
7764 MonoClass *klass = mono_class_from_mono_type (handle);
7766 MONO_ARCH_SAVE_REGS;
7768 mono_class_init (klass);
7769 return mono_type_get_object (domain, handle);
7773 * mono_marshal_get_isinst:
7774 * @klass: the type of the field
7776 * This method generates a function which can be used to check if an object is
7777 * an instance of the given type, icluding the case where the object is a proxy.
7778 * The generated function has the following signature:
7779 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
7782 mono_marshal_get_isinst (MonoClass *klass)
7784 static MonoMethodSignature *isint_sig = NULL;
7787 int pos_was_ok, pos_failed, pos_end, pos_end2;
7789 MonoMethodBuilder *mb;
7791 cache = klass->image->isinst_cache;
7792 if ((res = mono_marshal_find_in_cache (cache, klass)))
7796 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
7797 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
7798 isint_sig->ret = &mono_defaults.object_class->byval_arg;
7799 isint_sig->pinvoke = 0;
7802 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
7803 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
7806 mb->method->save_lmf = 1;
7808 /* check if the object is a proxy that needs special cast */
7809 mono_mb_emit_ldarg (mb, 0);
7810 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7811 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
7813 /* The result of MONO_ISINST can be:
7814 0) the type check succeeded
7815 1) the type check did not succeed
7816 2) a CanCastTo call is needed */
7818 mono_mb_emit_byte (mb, CEE_DUP);
7819 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
7821 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
7822 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
7824 /* get the real proxy from the transparent proxy*/
7826 mono_mb_emit_ldarg (mb, 0);
7827 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
7828 pos_end = mono_mb_emit_branch (mb, CEE_BR);
7832 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
7833 mono_mb_emit_byte (mb, CEE_LDNULL);
7834 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
7838 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
7839 mono_mb_emit_byte (mb, CEE_POP);
7840 mono_mb_emit_ldarg (mb, 0);
7844 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
7845 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
7846 mono_mb_emit_byte (mb, CEE_RET);
7848 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
7855 * mono_marshal_get_castclass:
7856 * @klass: the type of the field
7858 * This method generates a function which can be used to cast an object to
7859 * an instance of the given type, icluding the case where the object is a proxy.
7860 * The generated function has the following signature:
7861 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
7864 mono_marshal_get_castclass (MonoClass *klass)
7866 static MonoMethodSignature *castclass_sig = NULL;
7869 int pos_was_ok, pos_was_ok2;
7871 MonoMethodBuilder *mb;
7873 cache = klass->image->castclass_cache;
7874 if ((res = mono_marshal_find_in_cache (cache, klass)))
7877 if (!castclass_sig) {
7878 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
7879 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
7880 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
7881 castclass_sig->pinvoke = 0;
7884 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
7885 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
7888 mb->method->save_lmf = 1;
7890 /* check if the object is a proxy that needs special cast */
7891 mono_mb_emit_ldarg (mb, 0);
7892 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7893 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
7895 /* The result of MONO_ISINST can be:
7896 0) the cast is valid
7897 1) cast of unknown proxy type
7898 or an exception if the cast is is invalid
7901 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
7903 /* get the real proxy from the transparent proxy*/
7905 mono_mb_emit_ldarg (mb, 0);
7906 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
7907 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7910 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
7913 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
7914 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
7915 mono_mb_emit_ldarg (mb, 0);
7918 mono_mb_emit_byte (mb, CEE_RET);
7920 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
7927 mono_marshal_get_proxy_cancast (MonoClass *klass)
7929 static MonoMethodSignature *isint_sig = NULL;
7932 int pos_failed, pos_end;
7934 MonoMethod *can_cast_to;
7935 MonoMethodDesc *desc;
7936 MonoMethodBuilder *mb;
7938 cache = klass->image->proxy_isinst_cache;
7939 if ((res = mono_marshal_find_in_cache (cache, klass)))
7943 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
7944 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
7945 isint_sig->ret = &mono_defaults.object_class->byval_arg;
7946 isint_sig->pinvoke = 0;
7949 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
7950 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
7953 mb->method->save_lmf = 1;
7955 /* get the real proxy from the transparent proxy*/
7956 mono_mb_emit_ldarg (mb, 0);
7957 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
7958 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7960 /* get the reflection type from the type handle */
7961 mono_mb_emit_ptr (mb, &klass->byval_arg);
7962 mono_mb_emit_icall (mb, type_from_handle);
7964 mono_mb_emit_ldarg (mb, 0);
7966 /* make the call to CanCastTo (type, ob) */
7967 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
7968 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
7969 g_assert (can_cast_to);
7970 mono_method_desc_free (desc);
7971 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
7973 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
7975 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
7976 mono_mb_emit_ptr (mb, &klass->byval_arg);
7977 mono_mb_emit_icall (mb, type_from_handle);
7978 mono_mb_emit_ldarg (mb, 0);
7980 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
7981 emit_thread_interrupt_checkpoint (mb);
7983 mono_mb_emit_ldarg (mb, 0);
7984 pos_end = mono_mb_emit_branch (mb, CEE_BR);
7988 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
7989 mono_mb_emit_byte (mb, CEE_LDNULL);
7993 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
7994 mono_mb_emit_byte (mb, CEE_RET);
7996 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8003 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8006 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8007 klass = mono_class_from_mono_type (rtype->type);
8008 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8012 * mono_marshal_get_struct_to_ptr:
8015 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8018 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8020 MonoMethodBuilder *mb;
8021 static MonoMethod *stoptr = NULL;
8024 g_assert (klass != NULL);
8026 mono_marshal_load_type_info (klass);
8028 if (klass->marshal_info->str_to_ptr)
8029 return klass->marshal_info->str_to_ptr;
8032 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8035 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8037 if (klass->blittable) {
8038 mono_mb_emit_byte (mb, CEE_LDARG_1);
8039 mono_mb_emit_byte (mb, CEE_LDARG_0);
8040 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8041 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8042 mono_mb_emit_byte (mb, CEE_PREFIX1);
8043 mono_mb_emit_byte (mb, CEE_CPBLK);
8046 /* allocate local 0 (pointer) src_ptr */
8047 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8048 /* allocate local 1 (pointer) dst_ptr */
8049 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8050 /* allocate local 2 (boolean) delete_old */
8051 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8052 mono_mb_emit_byte (mb, CEE_LDARG_2);
8053 mono_mb_emit_stloc (mb, 2);
8055 /* initialize src_ptr to point to the start of object data */
8056 mono_mb_emit_byte (mb, CEE_LDARG_0);
8057 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8058 mono_mb_emit_stloc (mb, 0);
8060 /* initialize dst_ptr */
8061 mono_mb_emit_byte (mb, CEE_LDARG_1);
8062 mono_mb_emit_stloc (mb, 1);
8064 emit_struct_conv (mb, klass, FALSE);
8067 mono_mb_emit_byte (mb, CEE_RET);
8069 res = mono_mb_create_method (mb, mono_method_signature (stoptr), 0);
8072 klass->marshal_info->str_to_ptr = res;
8077 * mono_marshal_get_ptr_to_struct:
8080 * generates IL code for PtrToStructure (IntPtr src, object structure)
8083 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8085 MonoMethodBuilder *mb;
8086 static MonoMethodSignature *ptostr = NULL;
8089 g_assert (klass != NULL);
8091 mono_marshal_load_type_info (klass);
8093 if (klass->marshal_info->ptr_to_str)
8094 return klass->marshal_info->ptr_to_str;
8097 /* Create the signature corresponding to
8098 static void PtrToStructure (IntPtr ptr, object structure);
8099 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8100 ptostr = mono_create_icall_signature ("void ptr object");
8102 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8104 if (klass->blittable) {
8105 mono_mb_emit_byte (mb, CEE_LDARG_1);
8106 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8107 mono_mb_emit_byte (mb, CEE_LDARG_0);
8108 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8109 mono_mb_emit_byte (mb, CEE_PREFIX1);
8110 mono_mb_emit_byte (mb, CEE_CPBLK);
8113 /* allocate local 0 (pointer) src_ptr */
8114 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8115 /* allocate local 1 (pointer) dst_ptr */
8116 mono_mb_add_local (mb, &klass->this_arg);
8118 /* initialize src_ptr to point to the start of object data */
8119 mono_mb_emit_byte (mb, CEE_LDARG_0);
8120 mono_mb_emit_stloc (mb, 0);
8122 /* initialize dst_ptr */
8123 mono_mb_emit_byte (mb, CEE_LDARG_1);
8124 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8125 mono_mb_emit_stloc (mb, 1);
8127 emit_struct_conv (mb, klass, TRUE);
8130 mono_mb_emit_byte (mb, CEE_RET);
8132 res = mono_mb_create_method (mb, ptostr, 0);
8135 klass->marshal_info->ptr_to_str = res;
8140 * generates IL code for the synchronized wrapper: the generated method
8141 * calls METHOD while locking 'this' or the parent type.
8144 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8146 static MonoMethod *enter_method, *exit_method;
8147 MonoMethodSignature *sig;
8148 MonoExceptionClause *clause;
8149 MonoMethodHeader *header;
8150 MonoMethodBuilder *mb;
8153 int i, pos, this_local, ret_local = 0;
8157 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8160 cache = method->klass->image->synchronized_cache;
8161 if ((res = mono_marshal_find_in_cache (cache, method)))
8164 sig = signature_dup (method->klass->image, mono_method_signature (method));
8167 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8170 if (!MONO_TYPE_IS_VOID (sig->ret))
8171 ret_local = mono_mb_add_local (mb, sig->ret);
8174 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8176 mono_loader_lock ();
8177 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
8178 mono_loader_unlock ();
8179 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8181 if (!enter_method) {
8182 MonoMethodDesc *desc;
8184 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8185 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8186 g_assert (enter_method);
8187 mono_method_desc_free (desc);
8188 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8189 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8190 g_assert (exit_method);
8191 mono_method_desc_free (desc);
8194 /* Push this or the type object */
8195 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8197 * GetTypeFromHandle isn't called as a managed method because it has
8198 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
8199 * transformed into something else by the JIT.
8201 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
8202 mono_mb_emit_icall (mb, type_from_handle);
8205 mono_mb_emit_ldarg (mb, 0);
8206 mono_mb_emit_stloc (mb, this_local);
8208 /* Call Monitor::Enter() */
8209 mono_mb_emit_ldloc (mb, this_local);
8210 mono_mb_emit_managed_call (mb, enter_method, NULL);
8212 clause->try_offset = mb->pos;
8214 /* Call the method */
8216 mono_mb_emit_ldarg (mb, 0);
8217 for (i = 0; i < sig->param_count; i++)
8218 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8220 /* this is needed to avoid recursion */
8221 mono_mb_emit_byte (mb, CEE_PREFIX1);
8222 mono_mb_emit_op (mb, CEE_LDFTN, method);
8223 mono_mb_emit_calli (mb, mono_method_signature (method));
8225 if (!MONO_TYPE_IS_VOID (sig->ret))
8226 mono_mb_emit_stloc (mb, ret_local);
8228 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8230 clause->try_len = mb->pos - clause->try_offset;
8231 clause->handler_offset = mb->pos;
8233 /* Call Monitor::Exit() */
8234 mono_mb_emit_ldloc (mb, this_local);
8235 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
8236 mono_mb_emit_managed_call (mb, exit_method, NULL);
8237 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8239 clause->handler_len = mb->pos - clause->handler_offset;
8241 mono_mb_patch_branch (mb, pos);
8242 if (!MONO_TYPE_IS_VOID (sig->ret))
8243 mono_mb_emit_ldloc (mb, ret_local);
8244 mono_mb_emit_byte (mb, CEE_RET);
8246 res = mono_mb_create_and_cache (cache, method,
8247 mb, sig, sig->param_count + 16);
8250 header = ((MonoMethodNormal *)res)->header;
8251 header->num_clauses = 1;
8252 header->clauses = clause;
8259 * the returned method calls 'method' unboxing the this argument
8262 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8264 MonoMethodSignature *sig = mono_method_signature (method);
8266 MonoMethodBuilder *mb;
8270 cache = method->klass->image->unbox_wrapper_cache;
8271 if ((res = mono_marshal_find_in_cache (cache, method)))
8274 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8276 g_assert (sig->hasthis);
8278 mono_mb_emit_ldarg (mb, 0);
8279 mono_mb_emit_icon (mb, sizeof (MonoObject));
8280 mono_mb_emit_byte (mb, CEE_ADD);
8281 for (i = 0; i < sig->param_count; ++i)
8282 mono_mb_emit_ldarg (mb, i + 1);
8283 mono_mb_emit_managed_call (mb, method, NULL);
8284 mono_mb_emit_byte (mb, CEE_RET);
8286 res = mono_mb_create_and_cache (cache, method,
8287 mb, sig, sig->param_count + 16);
8290 /* 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)); */
8296 mono_marshal_get_stelemref ()
8298 static MonoMethod* ret = NULL;
8299 MonoMethodSignature *sig;
8300 MonoMethodBuilder *mb;
8302 guint32 b1, b2, b3, b4;
8305 int array_slot_addr;
8310 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8313 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8315 /* void stelemref (void* array, int idx, void* value) */
8316 sig->ret = &mono_defaults.void_class->byval_arg;
8317 sig->params [0] = &mono_defaults.object_class->byval_arg;
8318 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8319 sig->params [2] = &mono_defaults.object_class->byval_arg;
8321 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8322 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8323 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8327 <ldelema (bound check)>
8331 aklass = array->vtable->klass->element_class;
8332 vklass = value->vtable->klass;
8334 if (vklass->idepth < aklass->idepth)
8337 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8341 *array_slot_addr = value;
8345 if (mono_object_isinst (value, aklass))
8348 throw new ArrayTypeMismatchException ();
8351 /* ldelema (implicit bound check) */
8352 mono_mb_emit_ldarg (mb, 0);
8353 mono_mb_emit_ldarg (mb, 1);
8354 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8355 mono_mb_emit_stloc (mb, array_slot_addr);
8357 /* if (!value) goto do_store */
8358 mono_mb_emit_ldarg (mb, 2);
8359 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8361 /* aklass = array->vtable->klass->element_class */
8362 mono_mb_emit_ldarg (mb, 0);
8363 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8364 mono_mb_emit_byte (mb, CEE_LDIND_I);
8365 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8366 mono_mb_emit_byte (mb, CEE_LDIND_I);
8367 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8368 mono_mb_emit_byte (mb, CEE_LDIND_I);
8369 mono_mb_emit_stloc (mb, aklass);
8371 /* vklass = value->vtable->klass */
8372 mono_mb_emit_ldarg (mb, 2);
8373 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8374 mono_mb_emit_byte (mb, CEE_LDIND_I);
8375 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8376 mono_mb_emit_byte (mb, CEE_LDIND_I);
8377 mono_mb_emit_stloc (mb, vklass);
8379 /* if (vklass->idepth < aklass->idepth) goto failue */
8380 mono_mb_emit_ldloc (mb, vklass);
8381 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8382 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8384 mono_mb_emit_ldloc (mb, aklass);
8385 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8386 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8388 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8390 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8391 mono_mb_emit_ldloc (mb, vklass);
8392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8393 mono_mb_emit_byte (mb, CEE_LDIND_I);
8395 mono_mb_emit_ldloc (mb, aklass);
8396 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8397 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8398 mono_mb_emit_icon (mb, 1);
8399 mono_mb_emit_byte (mb, CEE_SUB);
8400 mono_mb_emit_icon (mb, sizeof (void*));
8401 mono_mb_emit_byte (mb, CEE_MUL);
8402 mono_mb_emit_byte (mb, CEE_ADD);
8403 mono_mb_emit_byte (mb, CEE_LDIND_I);
8405 mono_mb_emit_ldloc (mb, aklass);
8407 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8411 mono_mb_patch_branch (mb, b1);
8412 mono_mb_emit_ldloc (mb, array_slot_addr);
8413 mono_mb_emit_ldarg (mb, 2);
8414 mono_mb_emit_byte (mb, CEE_STIND_REF);
8416 mono_mb_emit_byte (mb, CEE_RET);
8419 mono_mb_patch_branch (mb, b2);
8420 mono_mb_patch_branch (mb, b3);
8422 mono_mb_emit_ldarg (mb, 2);
8423 mono_mb_emit_ldloc (mb, aklass);
8424 mono_mb_emit_icall (mb, mono_object_isinst);
8426 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8427 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8428 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8430 mono_mb_emit_byte (mb, CEE_RET);
8431 ret = mono_mb_create_method (mb, sig, 4);
8437 mono_marshal_get_write_barrier (void)
8439 static MonoMethod* ret = NULL;
8440 MonoMethodSignature *sig;
8441 MonoMethodBuilder *mb;
8447 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
8449 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8451 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
8452 sig->ret = &mono_defaults.void_class->byval_arg;
8453 sig->params [0] = &mono_defaults.object_class->this_arg;
8454 sig->params [1] = &mono_defaults.object_class->byval_arg;
8456 /* just the store right now: add an hook for the GC to use, maybe something
8457 * that can be used for stelemref as well
8458 * We need a write barrier variant to be used with struct copies as well, though
8459 * there are also other approaches possible, like writing a wrapper specific to
8460 * the struct or to the reference pattern in the struct...
8461 * Depending on the GC, we may want variants that take the object we store to
8462 * when it is available.
8464 mono_mb_emit_ldarg (mb, 0);
8465 mono_mb_emit_ldarg (mb, 1);
8466 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
8467 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
8469 mono_mb_emit_byte (mb, CEE_RET);
8471 ret = mono_mb_create_method (mb, sig, max_stack);
8477 mono_marshal_alloc (gulong size)
8481 #ifdef PLATFORM_WIN32
8482 res = CoTaskMemAlloc (size);
8484 res = g_try_malloc ((gulong)size);
8486 mono_gc_out_of_memory ((gulong)size);
8492 mono_marshal_free (gpointer ptr)
8494 #ifdef PLATFORM_WIN32
8495 CoTaskMemFree (ptr);
8502 mono_marshal_free_array (gpointer *ptr, int size)
8509 for (i = 0; i < size; i++)
8515 mono_marshal_realloc (gpointer ptr, gpointer size)
8517 MONO_ARCH_SAVE_REGS;
8519 return g_try_realloc (ptr, (gulong)size);
8523 mono_marshal_string_to_utf16 (MonoString *s)
8525 return s ? mono_string_chars (s) : NULL;
8529 * mono_marshal_set_last_error:
8531 * This function is invoked to set the last error value from a P/Invoke call
8532 * which has SetLastError set.
8535 mono_marshal_set_last_error (void)
8538 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
8540 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
8545 mono_marshal_set_last_error_windows (int error)
8548 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
8553 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
8554 gpointer dest, gint32 length)
8559 MONO_ARCH_SAVE_REGS;
8561 MONO_CHECK_ARG_NULL (src);
8562 MONO_CHECK_ARG_NULL (dest);
8564 g_assert (src->obj.vtable->klass->rank == 1);
8565 g_assert (start_index >= 0);
8566 g_assert (length >= 0);
8567 g_assert (start_index + length <= mono_array_length (src));
8569 element_size = mono_array_element_size (src->obj.vtable->klass);
8571 /* no references should be involved */
8572 source_addr = mono_array_addr_with_size (src, element_size, start_index);
8574 memcpy (dest, source_addr, length * element_size);
8578 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
8579 MonoArray *dest, gint32 length)
8584 MONO_ARCH_SAVE_REGS;
8586 MONO_CHECK_ARG_NULL (src);
8587 MONO_CHECK_ARG_NULL (dest);
8589 g_assert (dest->obj.vtable->klass->rank == 1);
8590 g_assert (start_index >= 0);
8591 g_assert (length >= 0);
8592 g_assert (start_index + length <= mono_array_length (dest));
8594 element_size = mono_array_element_size (dest->obj.vtable->klass);
8596 /* no references should be involved */
8597 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
8599 memcpy (dest_addr, src, length * element_size);
8602 #if NO_UNALIGNED_ACCESS
8603 #define RETURN_UNALIGNED(type, addr) \
8606 memcpy(&val, p + offset, sizeof(val)); \
8609 #define WRITE_UNALIGNED(type, addr, val) \
8610 memcpy(addr, &val, sizeof(type))
8612 #define RETURN_UNALIGNED(type, addr) \
8613 return *(type*)(p + offset);
8614 #define WRITE_UNALIGNED(type, addr, val) \
8615 (*(type *)(addr) = (val))
8619 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
8623 MONO_ARCH_SAVE_REGS;
8625 RETURN_UNALIGNED(gpointer, p + offset);
8629 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
8633 MONO_ARCH_SAVE_REGS;
8635 return *(unsigned char*)(p + offset);
8639 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
8643 MONO_ARCH_SAVE_REGS;
8645 RETURN_UNALIGNED(gint16, p + offset);
8649 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
8653 MONO_ARCH_SAVE_REGS;
8655 RETURN_UNALIGNED(gint32, p + offset);
8659 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
8663 MONO_ARCH_SAVE_REGS;
8665 RETURN_UNALIGNED(gint64, p + offset);
8669 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
8673 MONO_ARCH_SAVE_REGS;
8675 *(unsigned char*)(p + offset) = val;
8679 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
8683 MONO_ARCH_SAVE_REGS;
8685 WRITE_UNALIGNED(gpointer, p + offset, val);
8689 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
8693 MONO_ARCH_SAVE_REGS;
8695 WRITE_UNALIGNED(gint16, p + offset, val);
8699 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
8703 MONO_ARCH_SAVE_REGS;
8705 WRITE_UNALIGNED(gint32, p + offset, val);
8709 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
8713 MONO_ARCH_SAVE_REGS;
8715 WRITE_UNALIGNED(gint64, p + offset, val);
8719 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
8721 MONO_ARCH_SAVE_REGS;
8726 return mono_string_new (mono_domain_get (), ptr);
8730 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
8732 MONO_ARCH_SAVE_REGS;
8735 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
8736 g_assert_not_reached ();
8739 return mono_string_new_len (mono_domain_get (), ptr, len);
8743 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
8745 MonoDomain *domain = mono_domain_get ();
8749 MONO_ARCH_SAVE_REGS;
8757 return mono_string_new_utf16 (domain, ptr, len);
8761 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
8763 MonoDomain *domain = mono_domain_get ();
8765 MONO_ARCH_SAVE_REGS;
8768 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
8769 g_assert_not_reached ();
8772 return mono_string_new_utf16 (domain, ptr, len);
8776 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
8778 MONO_ARCH_SAVE_REGS;
8780 return mono_string_from_bstr(ptr);
8784 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
8786 MONO_ARCH_SAVE_REGS;
8788 return mono_string_to_bstr(ptr);
8793 #define STDCALL __stdcall
8795 #define STDCALL __attribute__((stdcall))
8803 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
8804 int (STDCALL *AddRef)(gpointer pUnk);
8805 int (STDCALL *Release)(gpointer pUnk);
8809 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
8811 MONO_ARCH_SAVE_REGS;
8813 mono_free_bstr (ptr);
8817 ves_icall_System_Runtime_InteropServices_Marshal_AddRef (gpointer pUnk)
8819 MONO_ARCH_SAVE_REGS;
8821 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
8825 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterface (gpointer pUnk, gpointer riid, gpointer* ppv)
8827 MONO_ARCH_SAVE_REGS;
8829 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
8833 ves_icall_System_Runtime_InteropServices_Marshal_Release (gpointer pUnk)
8835 MONO_ARCH_SAVE_REGS;
8837 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
8841 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
8843 MONO_ARCH_SAVE_REGS;
8845 return cominterop_get_com_slot_for_method (m->method);
8849 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
8851 MONO_ARCH_SAVE_REGS;
8853 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
8857 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
8863 MONO_ARCH_SAVE_REGS;
8865 MONO_CHECK_ARG_NULL (rtype);
8868 klass = mono_class_from_mono_type (type);
8869 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
8871 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
8875 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
8876 exc = mono_get_exception_argument ("t", msg);
8878 mono_raise_exception (exc);
8882 return mono_class_native_size (klass, NULL);
8886 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
8891 MONO_ARCH_SAVE_REGS;
8893 MONO_CHECK_ARG_NULL (obj);
8894 MONO_CHECK_ARG_NULL (dst);
8896 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
8900 pa [2] = &delete_old;
8902 mono_runtime_invoke (method, NULL, pa, NULL);
8906 ptr_to_structure (gpointer src, MonoObject *dst)
8911 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
8916 mono_runtime_invoke (method, NULL, pa, NULL);
8920 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
8924 MONO_ARCH_SAVE_REGS;
8926 MONO_CHECK_ARG_NULL (src);
8927 MONO_CHECK_ARG_NULL (dst);
8929 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
8931 if (t->type == MONO_TYPE_VALUETYPE) {
8935 tmp = g_strdup_printf ("Destination is a boxed value type.");
8936 exc = mono_get_exception_argument ("dst", tmp);
8939 mono_raise_exception (exc);
8943 ptr_to_structure (src, dst);
8947 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
8949 MonoDomain *domain = mono_domain_get ();
8952 MONO_ARCH_SAVE_REGS;
8954 MONO_CHECK_ARG_NULL (src);
8955 MONO_CHECK_ARG_NULL (type);
8957 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
8959 ptr_to_structure (src, res);
8965 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
8967 MonoMarshalType *info;
8970 int match_index = -1;
8972 MONO_ARCH_SAVE_REGS;
8974 MONO_CHECK_ARG_NULL (type);
8975 MONO_CHECK_ARG_NULL (field_name);
8977 fname = mono_string_to_utf8 (field_name);
8978 klass = mono_class_from_mono_type (type->type);
8980 while (klass && match_index == -1) {
8981 MonoClassField* field;
8983 gpointer iter = NULL;
8984 while ((field = mono_class_get_fields (klass, &iter))) {
8985 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
8987 if (!strcmp (fname, field->name)) {
8994 if (match_index == -1)
8995 klass = klass->parent;
9000 if(match_index == -1) {
9004 /* Get back original class instance */
9005 klass = mono_class_from_mono_type (type->type);
9007 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9008 exc = mono_get_exception_argument ("fieldName", tmp);
9011 mono_raise_exception ((MonoException*)exc);
9014 info = mono_marshal_load_type_info (klass);
9015 return info->fields [match_index].offset;
9019 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9021 MONO_ARCH_SAVE_REGS;
9023 return mono_string_to_utf8 (string);
9027 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9029 MONO_ARCH_SAVE_REGS;
9034 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9035 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9036 res [mono_string_length (string)] = 0;
9042 mono_struct_delete_old (MonoClass *klass, char *ptr)
9044 MonoMarshalType *info;
9047 info = mono_marshal_load_type_info (klass);
9049 for (i = 0; i < info->num_fields; i++) {
9050 MonoMarshalNative ntype;
9051 MonoMarshalConv conv;
9052 MonoType *ftype = info->fields [i].field->type;
9055 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9058 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9059 klass->unicode, &conv);
9061 cpos = ptr + info->fields [i].offset;
9064 case MONO_MARSHAL_CONV_NONE:
9065 if (MONO_TYPE_ISSTRUCT (ftype)) {
9066 mono_struct_delete_old (ftype->data.klass, cpos);
9070 case MONO_MARSHAL_CONV_STR_LPWSTR:
9071 /* We assume this field points inside a MonoString */
9073 case MONO_MARSHAL_CONV_STR_LPSTR:
9074 case MONO_MARSHAL_CONV_STR_LPTSTR:
9075 case MONO_MARSHAL_CONV_STR_BSTR:
9076 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9077 case MONO_MARSHAL_CONV_STR_TBSTR:
9078 mono_marshal_free (*(gpointer *)cpos);
9087 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9091 MONO_ARCH_SAVE_REGS;
9093 MONO_CHECK_ARG_NULL (src);
9094 MONO_CHECK_ARG_NULL (type);
9096 klass = mono_class_from_mono_type (type->type);
9098 mono_struct_delete_old (klass, (char *)src);
9102 /* FIXME: on win32 we should probably use GlobalAlloc(). */
9104 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9108 MONO_ARCH_SAVE_REGS;
9110 if ((gulong)size == 0)
9111 /* This returns a valid pointer for size 0 on MS.NET */
9114 res = g_try_malloc ((gulong)size);
9116 mono_gc_out_of_memory ((gulong)size);
9122 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9124 MONO_ARCH_SAVE_REGS;
9130 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9132 MONO_ARCH_SAVE_REGS;
9134 #ifdef PLATFORM_WIN32
9135 return CoTaskMemAlloc (size);
9137 return g_try_malloc ((gulong)size);
9142 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9144 MONO_ARCH_SAVE_REGS;
9146 #ifdef PLATFORM_WIN32
9147 CoTaskMemFree (ptr);
9154 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9156 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9160 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9162 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9165 /* Only used for COM RCWs */
9167 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
9173 MONO_ARCH_SAVE_REGS;
9175 domain = mono_object_domain (type);
9176 klass = mono_class_from_mono_type (type->type);
9178 /* call mono_object_new_alloc_specific instead of mono_object_new
9179 * because we want to actually create object. mono_object_new checks
9180 * to see if type is import and creates transparent proxy. this method
9181 * is called by the corresponding real proxy to create the real RCW.
9182 * Constructor does not need to be called. Will be called later.
9184 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
9189 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
9191 ves_icall_System_Runtime_InteropServices_Marshal_Release (value);
9196 ves_icall_System_ComObject_Finalizer(MonoComObject* obj)
9200 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
9201 obj->itf_hash = NULL;
9204 #define MONO_IUNKNOWN_INTERFACE_SLOT 0
9207 ves_icall_System_ComObject_FindInterface (MonoComObject* obj, MonoReflectionType* type)
9211 g_assert(obj->itf_hash);
9213 klass = mono_class_from_mono_type (type->type);
9215 return g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)klass->interface_id));
9219 ves_icall_System_ComObject_CacheInterface (MonoComObject* obj, MonoReflectionType* type, gpointer pItf)
9223 g_assert(obj->itf_hash);
9225 klass = mono_class_from_mono_type (type->type);
9227 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)klass->interface_id), pItf);
9231 ves_icall_System_ComObject_GetIUnknown (MonoComObject* obj)
9236 return g_hash_table_lookup (obj->itf_hash, MONO_IUNKNOWN_INTERFACE_SLOT);
9240 ves_icall_System_ComObject_SetIUnknown (MonoComObject* obj, gpointer pUnk)
9243 g_assert(!obj->itf_hash);
9244 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
9245 g_hash_table_insert (obj->itf_hash, MONO_IUNKNOWN_INTERFACE_SLOT, pUnk);
9249 mono_marshal_load_type_info (MonoClass* klass)
9252 guint32 native_size = 0, min_align = 1;
9253 MonoMarshalType *info;
9254 MonoClassField* field;
9258 g_assert (klass != NULL);
9260 if (klass->marshal_info)
9261 return klass->marshal_info;
9264 mono_class_init (klass);
9267 while ((field = mono_class_get_fields (klass, &iter))) {
9268 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9270 if (mono_field_is_deleted (field))
9275 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9277 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9278 info->num_fields = count;
9280 /* Try to find a size for this type in metadata */
9281 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9283 if (klass->parent) {
9284 int parent_size = mono_class_native_size (klass->parent, NULL);
9286 /* Add parent size to real size */
9287 native_size += parent_size;
9288 info->native_size = parent_size;
9293 while ((field = mono_class_get_fields (klass, &iter))) {
9297 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9300 if (mono_field_is_deleted (field))
9302 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9303 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9304 NULL, NULL, &info->fields [j].mspec);
9306 info->fields [j].field = field;
9308 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9309 (strcmp (field->name, "$PRIVATE$") == 0)) {
9310 /* This field is a hack inserted by MCS to empty structures */
9315 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9316 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
9317 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9318 &align, TRUE, klass->unicode);
9319 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9320 min_align = MAX (align, min_align);
9321 info->fields [j].offset = info->native_size;
9322 info->fields [j].offset += align - 1;
9323 info->fields [j].offset &= ~(align - 1);
9324 info->native_size = info->fields [j].offset + size;
9326 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
9327 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9328 &align, TRUE, klass->unicode);
9329 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9330 min_align = MAX (align, min_align);
9331 info->fields [j].offset = field->offset - sizeof (MonoObject);
9332 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
9338 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9339 info->native_size = MAX (native_size, info->native_size);
9342 if (info->native_size & (min_align - 1)) {
9343 info->native_size += min_align - 1;
9344 info->native_size &= ~(min_align - 1);
9347 /* Update the class's blittable info, if the layouts don't match */
9348 if (info->native_size != mono_class_value_size (klass, NULL))
9349 klass->blittable = FALSE;
9351 /* If this is an array type, ensure that we have element info */
9352 if (klass->element_class) {
9353 mono_marshal_load_type_info (klass->element_class);
9356 return klass->marshal_info;
9360 * mono_class_native_size:
9363 * Returns: the native size of an object instance (when marshaled
9364 * to unmanaged code)
9367 mono_class_native_size (MonoClass *klass, guint32 *align)
9369 if (!klass->marshal_info)
9370 mono_marshal_load_type_info (klass);
9373 *align = klass->min_align;
9375 return klass->marshal_info->native_size;
9379 * mono_type_native_stack_size:
9380 * @t: the type to return the size it uses on the stack
9382 * Returns: the number of bytes required to hold an instance of this
9383 * type on the native stack
9386 mono_type_native_stack_size (MonoType *t, guint32 *align)
9390 g_assert (t != NULL);
9401 case MONO_TYPE_BOOLEAN:
9402 case MONO_TYPE_CHAR:
9411 case MONO_TYPE_STRING:
9412 case MONO_TYPE_OBJECT:
9413 case MONO_TYPE_CLASS:
9414 case MONO_TYPE_SZARRAY:
9416 case MONO_TYPE_FNPTR:
9417 case MONO_TYPE_ARRAY:
9418 case MONO_TYPE_TYPEDBYREF:
9429 case MONO_TYPE_VALUETYPE: {
9432 if (t->data.klass->enumtype)
9433 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
9435 size = mono_class_native_size (t->data.klass, align);
9436 *align = *align + 3;
9446 g_error ("type 0x%02x unknown", t->type);
9451 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
9452 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
9453 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
9454 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
9457 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
9458 gboolean as_field, gboolean unicode)
9460 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
9463 switch (native_type) {
9464 case MONO_NATIVE_BOOLEAN:
9467 case MONO_NATIVE_I1:
9468 case MONO_NATIVE_U1:
9471 case MONO_NATIVE_I2:
9472 case MONO_NATIVE_U2:
9473 case MONO_NATIVE_VARIANTBOOL:
9476 case MONO_NATIVE_I4:
9477 case MONO_NATIVE_U4:
9478 case MONO_NATIVE_ERROR:
9481 case MONO_NATIVE_I8:
9482 case MONO_NATIVE_U8:
9483 *align = ALIGNMENT(guint64);
9485 case MONO_NATIVE_R4:
9488 case MONO_NATIVE_R8:
9489 *align = ALIGNMENT(double);
9491 case MONO_NATIVE_INT:
9492 case MONO_NATIVE_UINT:
9493 case MONO_NATIVE_LPSTR:
9494 case MONO_NATIVE_LPWSTR:
9495 case MONO_NATIVE_LPTSTR:
9496 case MONO_NATIVE_BSTR:
9497 case MONO_NATIVE_ANSIBSTR:
9498 case MONO_NATIVE_TBSTR:
9499 case MONO_NATIVE_LPARRAY:
9500 case MONO_NATIVE_SAFEARRAY:
9501 case MONO_NATIVE_IUNKNOWN:
9502 case MONO_NATIVE_IDISPATCH:
9503 case MONO_NATIVE_INTERFACE:
9504 case MONO_NATIVE_ASANY:
9505 case MONO_NATIVE_FUNC:
9506 case MONO_NATIVE_LPSTRUCT:
9507 *align = ALIGNMENT(gpointer);
9508 return sizeof (gpointer);
9509 case MONO_NATIVE_STRUCT:
9510 klass = mono_class_from_mono_type (type);
9511 return mono_class_native_size (klass, align);
9512 case MONO_NATIVE_BYVALTSTR: {
9513 int esize = unicode ? 2: 1;
9516 return mspec->data.array_data.num_elem * esize;
9518 case MONO_NATIVE_BYVALARRAY: {
9519 // FIXME: Have to consider ArraySubType
9521 klass = mono_class_from_mono_type (type);
9522 if (klass->element_class == mono_defaults.char_class) {
9523 esize = unicode ? 2 : 1;
9526 esize = mono_class_native_size (klass->element_class, align);
9529 return mspec->data.array_data.num_elem * esize;
9531 case MONO_NATIVE_CUSTOM:
9532 g_assert_not_reached ();
9534 case MONO_NATIVE_CURRENCY:
9535 case MONO_NATIVE_VBBYREFSTR:
9537 g_error ("native type %02x not implemented", native_type);
9540 g_assert_not_reached ();
9545 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
9553 t = &o->vtable->klass->byval_arg;
9560 case MONO_TYPE_BOOLEAN:
9563 case MONO_TYPE_CHAR:
9568 return mono_object_unbox (o);
9570 case MONO_TYPE_STRING:
9571 switch (string_encoding) {
9572 case MONO_NATIVE_LPWSTR:
9573 return mono_string_to_utf16 ((MonoString*)o);
9575 case MONO_NATIVE_LPSTR:
9576 return mono_string_to_lpstr ((MonoString*)o);
9579 g_warning ("marshaling conversion %d not implemented", string_encoding);
9580 g_assert_not_reached ();
9583 case MONO_TYPE_CLASS:
9584 case MONO_TYPE_VALUETYPE: {
9588 MonoBoolean delete_old = FALSE;
9590 klass = t->data.klass;
9592 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
9595 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
9596 klass->blittable || klass->enumtype))
9597 return mono_object_unbox (o);
9599 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
9601 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
9602 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
9606 pa [2] = &delete_old;
9608 mono_runtime_invoke (method, NULL, pa, NULL);
9615 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
9621 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
9629 t = &o->vtable->klass->byval_arg;
9631 case MONO_TYPE_STRING:
9632 switch (string_encoding) {
9633 case MONO_NATIVE_LPWSTR:
9634 case MONO_NATIVE_LPSTR:
9635 mono_marshal_free (ptr);
9638 g_warning ("marshaling conversion %d not implemented", string_encoding);
9639 g_assert_not_reached ();
9642 case MONO_TYPE_CLASS:
9643 case MONO_TYPE_VALUETYPE: {
9644 klass = t->data.klass;
9646 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
9647 klass->blittable || klass->enumtype))
9650 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
9651 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
9657 mono_runtime_invoke (method, NULL, pa, NULL);
9660 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
9661 mono_struct_delete_old (klass, ptr);
9664 mono_marshal_free (ptr);
9673 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
9675 MonoMethodSignature *sig, *csig;
9676 MonoMethodBuilder *mb;
9680 mb = mono_mb_new (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9681 mb->method->slot = -1;
9683 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
9684 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
9686 sig = mono_method_signature (method);
9687 csig = signature_dup (method->klass->image, sig);
9688 csig->generic_param_count = 0;
9690 mono_mb_emit_ldarg (mb, 0);
9691 for (i = 0; i < csig->param_count; i++)
9692 mono_mb_emit_ldarg (mb, i + 1);
9693 mono_mb_emit_managed_call (mb, method, NULL);
9694 mono_mb_emit_byte (mb, CEE_RET);
9696 res = mono_mb_create_method (mb, csig, csig->param_count + 16);