2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
20 #include "metadata/marshal.h"
21 #include "metadata/method-builder.h"
22 #include "metadata/tabledefs.h"
23 #include "metadata/exception.h"
24 #include "metadata/appdomain.h"
25 #include "mono/metadata/debug-helpers.h"
26 #include "mono/metadata/threadpool.h"
27 #include "mono/metadata/threads.h"
28 #include "mono/metadata/monitor.h"
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/domain-internals.h"
31 #include "mono/metadata/gc-internal.h"
32 #include "mono/metadata/threads-types.h"
33 #include "mono/metadata/string-icalls.h"
34 #include "mono/metadata/attrdefs.h"
35 #include "mono/metadata/gc-internal.h"
36 #include "mono/metadata/cominterop.h"
37 #include "mono/utils/mono-counters.h"
41 /* #define DEBUG_RUNTIME_CODE */
43 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
47 MONO_MARSHAL_NONE, /* No marshalling needed */
48 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
49 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
50 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
51 } MonoXDomainMarshalType;
58 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
61 #include "mono/cil/opcode.def"
66 struct _MonoRemotingMethods {
68 MonoMethod *invoke_with_check;
69 MonoMethod *xdomain_invoke;
70 MonoMethod *xdomain_dispatch;
73 typedef struct _MonoRemotingMethods MonoRemotingMethods;
76 * This mutex protects the various marshalling related caches in MonoImage
77 * and a few other data structures static to this file.
78 * Note that when this lock is held it is not possible to take other runtime
79 * locks like the loader lock.
81 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
82 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
83 static CRITICAL_SECTION marshal_mutex;
85 static guint32 last_error_tls_id;
87 static guint32 load_type_info_tls_id;
90 delegate_hash_table_add (MonoDelegate *d);
93 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
96 mono_struct_delete_old (MonoClass *klass, char *ptr);
99 mono_marshal_string_to_utf16 (MonoString *s);
102 mono_marshal_string_to_utf16_copy (MonoString *s);
105 mono_string_to_lpstr (MonoString *string_obj);
108 mono_string_from_bstr (gpointer bstr);
111 mono_free_bstr (gpointer bstr);
113 static MonoStringBuilder *
114 mono_string_utf8_to_builder2 (char *text);
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);
152 static void init_safe_handle (void);
154 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
155 static MonoMethod *sh_dangerous_add_ref;
156 static MonoMethod *sh_dangerous_release;
162 sh_dangerous_add_ref = mono_class_get_method_from_name (
163 mono_defaults.safehandle_class, "DangerousAddRef", 1);
164 sh_dangerous_release = mono_class_get_method_from_name (
165 mono_defaults.safehandle_class, "DangerousRelease", 0);
169 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
171 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
173 mono_register_jit_icall (func, name, sig, save);
176 static MonoMethodSignature*
177 signature_dup (MonoImage *image, MonoMethodSignature *sig)
179 MonoMethodSignature *res;
182 res = mono_metadata_signature_alloc (image, sig->param_count);
183 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
184 memcpy (res, sig, sigsize);
190 mono_signature_no_pinvoke (MonoMethod *method)
192 MonoMethodSignature *sig = mono_method_signature (method);
194 sig = signature_dup (method->klass->image, sig);
195 sig->pinvoke = FALSE;
202 mono_marshal_init (void)
204 static gboolean module_initialized = FALSE;
206 if (!module_initialized) {
207 module_initialized = TRUE;
208 InitializeCriticalSection (&marshal_mutex);
209 last_error_tls_id = TlsAlloc ();
210 load_type_info_tls_id = TlsAlloc ();
212 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
213 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
214 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
215 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
216 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
217 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
218 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
219 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
220 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
221 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
222 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
223 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
224 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
225 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
226 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
227 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
228 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
229 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
230 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
231 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
232 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
233 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
234 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
235 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
236 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
237 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
238 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
239 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
240 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
241 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
242 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
243 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
244 register_icall (g_free, "g_free", "void ptr", FALSE);
245 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
246 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
247 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
248 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
249 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
250 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
251 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
252 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
253 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
254 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
255 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
256 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
257 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
258 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
259 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
261 mono_cominterop_init ();
266 mono_marshal_cleanup (void)
268 mono_cominterop_cleanup ();
270 TlsFree (load_type_info_tls_id);
271 TlsFree (last_error_tls_id);
272 DeleteCriticalSection (&marshal_mutex);
275 MonoClass *byte_array_class;
276 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
277 static MonoMethod *method_set_context, *method_get_context;
278 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
281 mono_remoting_marshal_init (void)
285 static gboolean module_initialized = FALSE;
287 if (!module_initialized) {
288 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
289 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
290 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
291 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
293 klass = mono_defaults.real_proxy_class;
294 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
296 klass = mono_defaults.exception_class;
297 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
299 klass = mono_defaults.thread_class;
300 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
302 klass = mono_defaults.appdomain_class;
303 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
304 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
306 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
307 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
309 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
310 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
312 module_initialized = TRUE;
317 mono_delegate_to_ftnptr (MonoDelegate *delegate)
319 MonoMethod *method, *wrapper;
325 if (delegate->delegate_trampoline)
326 return delegate->delegate_trampoline;
328 klass = ((MonoObject *)delegate)->vtable->klass;
329 g_assert (klass->delegate);
331 method = delegate->method;
333 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
335 delegate->delegate_trampoline = mono_compile_method (wrapper);
337 // Add the delegate to the delegate hash table
338 delegate_hash_table_add (delegate);
340 /* when the object is collected, collect the dynamic method, too */
341 mono_object_register_finalizer ((MonoObject*)delegate);
343 return delegate->delegate_trampoline;
347 * this hash table maps from a delegate trampoline object to a weak reference
348 * of the delegate. As an optimizations with a non-moving GC we store the
349 * object pointer itself, otherwise we use a GC handle.
351 static GHashTable *delegate_hash_table;
354 delegate_hash_table_new (void) {
355 return g_hash_table_new (NULL, NULL);
359 delegate_hash_table_remove (MonoDelegate *d)
361 #ifdef HAVE_MOVING_COLLECTOR
364 mono_marshal_lock ();
365 if (delegate_hash_table == NULL)
366 delegate_hash_table = delegate_hash_table_new ();
367 #ifdef HAVE_MOVING_COLLECTOR
368 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
370 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
371 mono_marshal_unlock ();
372 #ifdef HAVE_MOVING_COLLECTOR
373 mono_gchandle_free (gchandle);
378 delegate_hash_table_add (MonoDelegate *d)
380 #ifdef HAVE_MOVING_COLLECTOR
381 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
383 mono_marshal_lock ();
384 if (delegate_hash_table == NULL)
385 delegate_hash_table = delegate_hash_table_new ();
386 #ifdef HAVE_MOVING_COLLECTOR
387 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
389 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
391 mono_marshal_unlock ();
395 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
397 #ifdef HAVE_MOVING_COLLECTOR
402 mono_marshal_lock ();
403 if (delegate_hash_table == NULL)
404 delegate_hash_table = delegate_hash_table_new ();
406 #ifdef HAVE_MOVING_COLLECTOR
407 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
408 mono_marshal_unlock ();
410 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
414 d = g_hash_table_lookup (delegate_hash_table, ftn);
415 mono_marshal_unlock ();
418 /* This is a native function, so construct a delegate for it */
419 static MonoClass *UnmanagedFunctionPointerAttribute;
420 MonoMethodSignature *sig;
422 MonoMarshalSpec **mspecs;
423 MonoCustomAttrInfo *cinfo;
424 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
425 MonoMethod *invoke = mono_get_delegate_invoke (klass);
426 MonoMethodPInvoke piinfo;
429 memset (&piinfo, 0, sizeof (piinfo));
430 if (!UnmanagedFunctionPointerAttribute)
431 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
433 /* The attribute is only available in Net 2.0 */
434 if (UnmanagedFunctionPointerAttribute) {
436 * The pinvoke attributes are stored in a real custom attribute so we have to
439 cinfo = mono_custom_attrs_from_class (klass);
441 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
443 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
446 mono_custom_attrs_free (cinfo);
450 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
451 mono_method_get_marshal_info (invoke, mspecs);
452 /* Freed below so don't alloc from mempool */
453 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
456 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
458 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
460 mono_metadata_free_marshal_spec (mspecs [i]);
464 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
465 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
468 if (d->object.vtable->domain != mono_domain_get ())
469 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
475 mono_delegate_free_ftnptr (MonoDelegate *delegate)
480 delegate_hash_table_remove (delegate);
482 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
484 if (!delegate->target) {
485 /* The wrapper method is shared between delegates -> no need to free it */
490 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
493 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
498 mono_array_to_savearray (MonoArray *array)
503 g_assert_not_reached ();
508 mono_array_to_lparray (MonoArray *array)
513 /* fixme: maybe we need to make a copy */
514 return array->vector;
518 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
520 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
522 if (elclass == mono_defaults.byte_class) {
523 GError *error = NULL;
527 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
530 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
534 g_error_free (error);
537 g_assert_not_reached ();
541 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
543 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
545 if (elclass == mono_defaults.byte_class) {
547 GError *error = NULL;
549 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
551 MonoException *exc = mono_get_exception_argument ("string", error->message);
552 g_error_free (error);
553 mono_raise_exception (exc);
556 memcpy (native_arr, as, MIN (strlen (as), elnum));
559 g_assert_not_reached ();
564 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
566 GError *error = NULL;
576 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
578 if (items_written > mono_stringbuilder_capacity (sb))
579 items_written = mono_stringbuilder_capacity (sb);
582 if (! sb->str || sb->str == sb->cached_str) {
583 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
584 sb->cached_str = NULL;
587 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
588 sb->length = items_written;
590 g_error_free (error);
596 mono_string_utf8_to_builder2 (char *text)
599 MonoStringBuilder *sb;
600 static MonoClass *string_builder_class;
601 static MonoMethod *sb_ctor;
608 if (!string_builder_class) {
609 MonoMethodDesc *desc;
611 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
612 g_assert (string_builder_class);
613 desc = mono_method_desc_new (":.ctor(int)", FALSE);
614 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
616 mono_method_desc_free (desc);
621 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
624 mono_runtime_invoke (sb_ctor, sb, args, &exc);
627 mono_string_utf8_to_builder (sb, text);
633 * FIXME: This routine does not seem to do what it seems to do
634 * the @text is never copied into the string builder
637 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
644 g_assert (mono_string_chars (sb->str) == text);
646 for (len = 0; text [len] != 0; ++len)
653 * mono_string_builder_to_utf8:
654 * @sb: the string builder
656 * Converts to utf8 the contents of the MonoStringBuilder.
658 * Returns: a utf8 string with the contents of the StringBuilder.
660 * The return value must be released with g_free.
663 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
665 GError *error = NULL;
666 gchar *tmp, *res = NULL;
671 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
673 * The sb could have been allocated with the default capacity and be empty.
674 * we need to alloc a buffer of the default capacity in this case.
676 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
677 sb->cached_str = NULL;
680 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
682 g_error_free (error);
683 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
685 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
686 memcpy (res, tmp, sb->length + 1);
694 * mono_string_builder_to_utf16:
695 * @sb: the string builder
697 * Converts to utf16 the contents of the MonoStringBuilder.
699 * Returns: a utf16 string with the contents of the StringBuilder.
701 * The return value must not be freed.
704 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
712 * The stringbuilder might not have ownership of this string. If this is
713 * the case, we must duplicate the string, so that we don't munge immutable
716 if (sb->str == sb->cached_str) {
718 * The sb could have been allocated with the default capacity and be empty.
719 * we need to alloc a buffer of the default capacity in this case.
721 if (sb->str->length == 0)
722 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
724 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
725 sb->cached_str = NULL;
728 return mono_string_chars (sb->str);
732 mono_string_to_lpstr (MonoString *s)
734 #ifdef PLATFORM_WIN32
737 GError *error = NULL;
743 as = CoTaskMemAlloc (1);
748 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
750 MonoException *exc = mono_get_exception_argument ("string", error->message);
751 g_error_free (error);
752 mono_raise_exception(exc);
755 as = CoTaskMemAlloc (len + 1);
756 memcpy (as, tmp, len + 1);
761 return mono_string_to_utf8 (s);
766 mono_string_to_ansibstr (MonoString *string_obj)
768 g_error ("UnmanagedMarshal.BStr is not implemented.");
772 typedef gpointer (*SysAllocStringLenFunc)(gunichar* str, guint32 len);
773 typedef guint32 (*SysStringLenFunc)(gpointer bstr);
774 typedef void (*SysFreeStringFunc)(gunichar* str);
776 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
777 static SysStringLenFunc sys_string_len_ms = NULL;
778 static SysFreeStringFunc sys_free_string_ms = NULL;
781 init_com_provider_ms (void)
783 static gboolean initialized = FALSE;
785 MonoDl *module = NULL;
786 const char* scope = "liboleaut32.so";
791 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
793 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
794 g_assert_not_reached ();
797 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
799 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
800 g_assert_not_reached ();
804 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
806 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
807 g_assert_not_reached ();
811 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
813 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
814 g_assert_not_reached ();
823 mono_string_to_bstr (MonoString *string_obj)
827 #ifdef PLATFORM_WIN32
828 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
830 if (com_provider == MONO_COM_DEFAULT) {
831 int slen = mono_string_length (string_obj);
832 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
833 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
836 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
837 * ((guint32 *) ret) = slen * sizeof(gunichar2);
838 ret [4 + slen * sizeof(gunichar2)] = 0;
839 ret [5 + slen * sizeof(gunichar2)] = 0;
842 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
844 gunichar* str = NULL;
846 len = mono_string_length (string_obj);
847 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
849 ret = sys_alloc_string_len_ms (str, len);
853 g_assert_not_reached ();
859 mono_string_from_bstr (gpointer bstr)
863 #ifdef PLATFORM_WIN32
864 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
866 if (com_provider == MONO_COM_DEFAULT) {
867 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
868 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
869 MonoString* str = NULL;
871 gunichar2* utf16 = NULL;
873 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
874 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
878 g_assert_not_reached ();
885 mono_free_bstr (gpointer bstr)
889 #ifdef PLATFORM_WIN32
890 SysFreeString ((BSTR)bstr);
892 if (com_provider == MONO_COM_DEFAULT) {
893 g_free (((char *)bstr) - 4);
894 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
895 sys_free_string_ms (bstr);
897 g_assert_not_reached ();
904 * mono_string_to_byvalstr:
905 * @dst: Where to store the null-terminated utf8 decoded string.
906 * @src: the MonoString to copy.
907 * @size: the maximum number of bytes to copy.
909 * Copies the MonoString pointed to by @src as a utf8 string
910 * into @dst, it copies at most @size bytes into the destination.
913 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
918 g_assert (dst != NULL);
921 memset (dst, 0, size);
925 s = mono_string_to_utf8 (src);
926 len = MIN (size, strlen (s));
929 memcpy (dst, s, len);
934 * mono_string_to_byvalwstr:
935 * @dst: Where to store the null-terminated utf16 decoded string.
936 * @src: the MonoString to copy.
937 * @size: the maximum number of bytes to copy.
939 * Copies the MonoString pointed to by @src as a utf16 string into
940 * @dst, it copies at most @size bytes into the destination (including
941 * a terminating 16-bit zero terminator).
944 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
948 g_assert (dst != NULL);
952 memset (dst, 0, size * 2);
956 len = MIN (size, (mono_string_length (src)));
957 memcpy (dst, mono_string_chars (src), size * 2);
958 if (size <= mono_string_length (src))
960 *((gunichar2 *) dst + len) = 0;
964 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
967 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
968 mono_mb_emit_byte (mb, CEE_LDIND_I);
969 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
970 mono_mb_emit_byte (mb, CEE_ADD);
971 mono_mb_emit_byte (mb, CEE_LDIND_I);
972 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
973 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
974 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
975 pos = mono_mb_emit_branch (mb, branch_code);
980 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
983 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
984 mono_mb_emit_byte (mb, CEE_LDIND_REF);
985 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
986 mono_mb_emit_byte (mb, CEE_LDIND_I4);
987 mono_mb_emit_icon (mb, -1);
988 pos = mono_mb_emit_branch (mb, branch_code);
993 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
995 static int offset = -1;
999 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1001 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1002 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1003 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1004 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1005 mono_mb_emit_ldflda (mb, offset);
1006 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1007 mono_mb_emit_icon (mb, mask);
1008 mono_mb_emit_byte (mb, CEE_AND);
1009 mono_mb_emit_icon (mb, 0);
1010 return mono_mb_emit_branch (mb, branch_code);
1014 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1016 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1020 mono_type_to_ldind (MonoType *type)
1026 switch (type->type) {
1028 return CEE_LDIND_I1;
1030 case MONO_TYPE_BOOLEAN:
1031 return CEE_LDIND_U1;
1033 return CEE_LDIND_I2;
1035 case MONO_TYPE_CHAR:
1036 return CEE_LDIND_U2;
1038 return CEE_LDIND_I4;
1040 return CEE_LDIND_U4;
1044 case MONO_TYPE_FNPTR:
1046 case MONO_TYPE_CLASS:
1047 case MONO_TYPE_STRING:
1048 case MONO_TYPE_OBJECT:
1049 case MONO_TYPE_SZARRAY:
1050 case MONO_TYPE_ARRAY:
1051 return CEE_LDIND_REF;
1054 return CEE_LDIND_I8;
1056 return CEE_LDIND_R4;
1058 return CEE_LDIND_R8;
1059 case MONO_TYPE_VALUETYPE:
1060 if (type->data.klass->enumtype) {
1061 type = mono_class_enum_basetype (type->data.klass);
1065 case MONO_TYPE_TYPEDBYREF:
1067 case MONO_TYPE_GENERICINST:
1068 type = &type->data.generic_class->container_class->byval_arg;
1071 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1077 mono_type_to_stind (MonoType *type)
1083 switch (type->type) {
1086 case MONO_TYPE_BOOLEAN:
1087 return CEE_STIND_I1;
1090 case MONO_TYPE_CHAR:
1091 return CEE_STIND_I2;
1094 return CEE_STIND_I4;
1098 case MONO_TYPE_FNPTR:
1100 case MONO_TYPE_CLASS:
1101 case MONO_TYPE_STRING:
1102 case MONO_TYPE_OBJECT:
1103 case MONO_TYPE_SZARRAY:
1104 case MONO_TYPE_ARRAY:
1105 return CEE_STIND_REF;
1108 return CEE_STIND_I8;
1110 return CEE_STIND_R4;
1112 return CEE_STIND_R8;
1113 case MONO_TYPE_VALUETYPE:
1114 if (type->data.klass->enumtype) {
1115 type = mono_class_enum_basetype (type->data.klass);
1119 case MONO_TYPE_TYPEDBYREF:
1121 case MONO_TYPE_GENERICINST:
1122 type = &type->data.generic_class->container_class->byval_arg;
1125 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1131 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1134 case MONO_MARSHAL_CONV_BOOL_I4:
1135 mono_mb_emit_ldloc (mb, 1);
1136 mono_mb_emit_ldloc (mb, 0);
1137 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1138 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1139 mono_mb_emit_byte (mb, 3);
1140 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1141 mono_mb_emit_byte (mb, CEE_BR_S);
1142 mono_mb_emit_byte (mb, 1);
1143 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1144 mono_mb_emit_byte (mb, CEE_STIND_I1);
1146 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1147 mono_mb_emit_ldloc (mb, 1);
1148 mono_mb_emit_ldloc (mb, 0);
1149 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1150 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1151 mono_mb_emit_byte (mb, 3);
1152 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1153 mono_mb_emit_byte (mb, CEE_BR_S);
1154 mono_mb_emit_byte (mb, 1);
1155 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1156 mono_mb_emit_byte (mb, CEE_STIND_I1);
1158 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1159 MonoClass *eklass = NULL;
1162 if (type->type == MONO_TYPE_SZARRAY) {
1163 eklass = type->data.klass;
1165 g_assert_not_reached ();
1168 esize = mono_class_native_size (eklass, NULL);
1170 /* create a new array */
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1173 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1174 mono_mb_emit_byte (mb, CEE_STIND_I);
1176 if (eklass->blittable) {
1177 /* copy the elements */
1178 mono_mb_emit_ldloc (mb, 1);
1179 mono_mb_emit_byte (mb, CEE_LDIND_I);
1180 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1181 mono_mb_emit_byte (mb, CEE_ADD);
1182 mono_mb_emit_ldloc (mb, 0);
1183 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1184 mono_mb_emit_byte (mb, CEE_PREFIX1);
1185 mono_mb_emit_byte (mb, CEE_CPBLK);
1188 int array_var, src_var, dst_var, index_var;
1189 guint32 label2, label3;
1191 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1192 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1193 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1196 mono_mb_emit_ldloc (mb, 1);
1197 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1198 mono_mb_emit_stloc (mb, array_var);
1200 /* save the old src pointer */
1201 mono_mb_emit_ldloc (mb, 0);
1202 mono_mb_emit_stloc (mb, src_var);
1203 /* save the old dst pointer */
1204 mono_mb_emit_ldloc (mb, 1);
1205 mono_mb_emit_stloc (mb, dst_var);
1207 /* Emit marshalling loop */
1208 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1209 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1210 mono_mb_emit_stloc (mb, index_var);
1213 label2 = mono_mb_get_label (mb);
1214 mono_mb_emit_ldloc (mb, index_var);
1215 mono_mb_emit_ldloc (mb, array_var);
1216 mono_mb_emit_byte (mb, CEE_LDLEN);
1217 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1219 /* src is already set */
1222 mono_mb_emit_ldloc (mb, array_var);
1223 mono_mb_emit_ldloc (mb, index_var);
1224 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1225 mono_mb_emit_stloc (mb, 1);
1227 /* Do the conversion */
1228 emit_struct_conv (mb, eklass, TRUE);
1231 mono_mb_emit_add_to_local (mb, index_var, 1);
1233 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1235 mono_mb_patch_branch (mb, label3);
1237 /* restore the old src pointer */
1238 mono_mb_emit_ldloc (mb, src_var);
1239 mono_mb_emit_stloc (mb, 0);
1240 /* restore the old dst pointer */
1241 mono_mb_emit_ldloc (mb, dst_var);
1242 mono_mb_emit_stloc (mb, 1);
1246 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1247 MonoClass *eclass = mono_defaults.char_class;
1249 /* create a new array */
1250 mono_mb_emit_ldloc (mb, 1);
1251 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1252 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1253 mono_mb_emit_byte (mb, CEE_STIND_REF);
1255 mono_mb_emit_ldloc (mb, 1);
1256 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1257 mono_mb_emit_ldloc (mb, 0);
1258 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1259 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1260 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1263 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1264 mono_mb_emit_ldloc (mb, 1);
1265 mono_mb_emit_ldloc (mb, 0);
1266 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1267 mono_mb_emit_byte (mb, CEE_STIND_REF);
1269 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_ldloc (mb, 0);
1272 mono_mb_emit_icall (mb, mono_string_from_utf16);
1273 mono_mb_emit_byte (mb, CEE_STIND_REF);
1275 case MONO_MARSHAL_CONV_STR_LPTSTR:
1276 mono_mb_emit_ldloc (mb, 1);
1277 mono_mb_emit_ldloc (mb, 0);
1278 mono_mb_emit_byte (mb, CEE_LDIND_I);
1279 #ifdef PLATFORM_WIN32
1280 mono_mb_emit_icall (mb, mono_string_from_utf16);
1282 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1284 mono_mb_emit_byte (mb, CEE_STIND_REF);
1286 case MONO_MARSHAL_CONV_STR_LPSTR:
1287 mono_mb_emit_ldloc (mb, 1);
1288 mono_mb_emit_ldloc (mb, 0);
1289 mono_mb_emit_byte (mb, CEE_LDIND_I);
1290 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1291 mono_mb_emit_byte (mb, CEE_STIND_REF);
1293 case MONO_MARSHAL_CONV_STR_LPWSTR:
1294 mono_mb_emit_ldloc (mb, 1);
1295 mono_mb_emit_ldloc (mb, 0);
1296 mono_mb_emit_byte (mb, CEE_LDIND_I);
1297 mono_mb_emit_icall (mb, mono_string_from_utf16);
1298 mono_mb_emit_byte (mb, CEE_STIND_REF);
1300 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1301 MonoClass *klass = mono_class_from_mono_type (type);
1302 int src_var, dst_var;
1304 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1305 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1307 /* *dst = new object */
1308 mono_mb_emit_ldloc (mb, 1);
1309 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1310 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1311 mono_mb_emit_byte (mb, CEE_STIND_REF);
1313 /* save the old src pointer */
1314 mono_mb_emit_ldloc (mb, 0);
1315 mono_mb_emit_stloc (mb, src_var);
1316 /* save the old dst pointer */
1317 mono_mb_emit_ldloc (mb, 1);
1318 mono_mb_emit_stloc (mb, dst_var);
1320 /* dst = pointer to newly created object data */
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_byte (mb, CEE_LDIND_I);
1323 mono_mb_emit_icon (mb, sizeof (MonoObject));
1324 mono_mb_emit_byte (mb, CEE_ADD);
1325 mono_mb_emit_stloc (mb, 1);
1327 emit_struct_conv (mb, klass, TRUE);
1329 /* restore the old src pointer */
1330 mono_mb_emit_ldloc (mb, src_var);
1331 mono_mb_emit_stloc (mb, 0);
1332 /* restore the old dst pointer */
1333 mono_mb_emit_ldloc (mb, dst_var);
1334 mono_mb_emit_stloc (mb, 1);
1337 case MONO_MARSHAL_CONV_DEL_FTN: {
1338 MonoClass *klass = mono_class_from_mono_type (type);
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1342 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_byte (mb, CEE_LDIND_I);
1345 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1346 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1350 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1354 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1355 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1356 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1357 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1359 #endif /* DISABLE_COM */
1361 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1363 * Passing SafeHandles as ref does not allow the unmanaged code
1364 * to change the SafeHandle value. If the value is changed,
1365 * we should issue a diagnostic exception (NotSupportedException)
1366 * that informs the user that changes to handles in unmanaged code
1369 * Since we currently have no access to the original
1370 * SafeHandle that was used during the marshalling,
1371 * for now we just ignore this, and ignore/discard any
1372 * changes that might have happened to the handle.
1377 case MONO_MARSHAL_CONV_HANDLEREF: {
1379 * Passing HandleRefs in a struct that is ref()ed does not
1380 * copy the values back to the HandleRef
1385 case MONO_MARSHAL_CONV_STR_BSTR:
1386 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1387 case MONO_MARSHAL_CONV_STR_TBSTR:
1388 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1390 g_warning ("marshaling conversion %d not implemented", conv);
1391 g_assert_not_reached ();
1396 conv_to_icall (MonoMarshalConv conv)
1399 case MONO_MARSHAL_CONV_STR_LPWSTR:
1400 return mono_marshal_string_to_utf16;
1401 case MONO_MARSHAL_CONV_LPWSTR_STR:
1402 return mono_string_from_utf16;
1403 case MONO_MARSHAL_CONV_LPSTR_STR:
1404 return mono_string_new_wrapper;
1405 case MONO_MARSHAL_CONV_STR_LPTSTR:
1406 #ifdef PLATFORM_WIN32
1407 return mono_marshal_string_to_utf16;
1409 return mono_string_to_lpstr;
1411 case MONO_MARSHAL_CONV_STR_LPSTR:
1412 return mono_string_to_lpstr;
1413 case MONO_MARSHAL_CONV_STR_BSTR:
1414 return mono_string_to_bstr;
1415 case MONO_MARSHAL_CONV_BSTR_STR:
1416 return mono_string_from_bstr;
1417 case MONO_MARSHAL_CONV_STR_TBSTR:
1418 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1419 return mono_string_to_ansibstr;
1420 case MONO_MARSHAL_CONV_SB_LPSTR:
1421 return mono_string_builder_to_utf8;
1422 case MONO_MARSHAL_CONV_SB_LPTSTR:
1423 #ifdef PLATFORM_WIN32
1424 return mono_string_builder_to_utf16;
1426 return mono_string_builder_to_utf8;
1428 case MONO_MARSHAL_CONV_SB_LPWSTR:
1429 return mono_string_builder_to_utf16;
1430 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1431 return mono_array_to_savearray;
1432 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1433 return mono_array_to_lparray;
1434 case MONO_MARSHAL_CONV_DEL_FTN:
1435 return mono_delegate_to_ftnptr;
1436 case MONO_MARSHAL_CONV_FTN_DEL:
1437 return mono_ftnptr_to_delegate;
1438 case MONO_MARSHAL_CONV_LPSTR_SB:
1439 return mono_string_utf8_to_builder;
1440 case MONO_MARSHAL_CONV_LPTSTR_SB:
1441 #ifdef PLATFORM_WIN32
1442 return mono_string_utf16_to_builder;
1444 return mono_string_utf8_to_builder;
1446 case MONO_MARSHAL_CONV_LPWSTR_SB:
1447 return mono_string_utf16_to_builder;
1448 case MONO_MARSHAL_FREE_ARRAY:
1449 return mono_marshal_free_array;
1450 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1451 return mono_string_to_byvalstr;
1452 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1453 return mono_string_to_byvalwstr;
1455 g_assert_not_reached ();
1462 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1467 case MONO_MARSHAL_CONV_BOOL_I4:
1468 mono_mb_emit_ldloc (mb, 1);
1469 mono_mb_emit_ldloc (mb, 0);
1470 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1471 mono_mb_emit_byte (mb, CEE_STIND_I4);
1473 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1474 mono_mb_emit_ldloc (mb, 1);
1475 mono_mb_emit_ldloc (mb, 0);
1476 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1477 mono_mb_emit_byte (mb, CEE_NEG);
1478 mono_mb_emit_byte (mb, CEE_STIND_I2);
1480 case MONO_MARSHAL_CONV_STR_LPWSTR:
1481 case MONO_MARSHAL_CONV_STR_LPSTR:
1482 case MONO_MARSHAL_CONV_STR_LPTSTR:
1483 case MONO_MARSHAL_CONV_STR_BSTR:
1484 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1485 case MONO_MARSHAL_CONV_STR_TBSTR: {
1488 /* free space if free == true */
1489 mono_mb_emit_ldloc (mb, 2);
1490 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1491 mono_mb_emit_ldloc (mb, 1);
1492 mono_mb_emit_byte (mb, CEE_LDIND_I);
1493 mono_mb_emit_icall (mb, g_free);
1494 mono_mb_patch_short_branch (mb, pos);
1496 mono_mb_emit_ldloc (mb, 1);
1497 mono_mb_emit_ldloc (mb, 0);
1498 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1499 mono_mb_emit_icall (mb, conv_to_icall (conv));
1500 mono_mb_emit_byte (mb, CEE_STIND_I);
1503 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1504 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1505 case MONO_MARSHAL_CONV_DEL_FTN:
1506 mono_mb_emit_ldloc (mb, 1);
1507 mono_mb_emit_ldloc (mb, 0);
1508 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1509 mono_mb_emit_icall (mb, conv_to_icall (conv));
1510 mono_mb_emit_byte (mb, CEE_STIND_I);
1512 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1513 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1516 mono_mb_emit_ldloc (mb, 1); /* dst */
1517 mono_mb_emit_ldloc (mb, 0);
1518 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1519 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1520 mono_mb_emit_icall (mb, conv_to_icall (conv));
1523 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1524 MonoClass *eklass = NULL;
1527 if (type->type == MONO_TYPE_SZARRAY) {
1528 eklass = type->data.klass;
1530 g_assert_not_reached ();
1533 if (eklass->valuetype)
1534 esize = mono_class_native_size (eklass, NULL);
1536 esize = sizeof (gpointer);
1538 mono_mb_emit_ldloc (mb, 0);
1539 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1540 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1542 if (eklass->blittable) {
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_ldloc (mb, 0);
1545 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1546 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1547 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1548 mono_mb_emit_byte (mb, CEE_PREFIX1);
1549 mono_mb_emit_byte (mb, CEE_CPBLK);
1551 int array_var, src_var, dst_var, index_var;
1552 guint32 label2, label3;
1554 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1555 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1556 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1559 mono_mb_emit_ldloc (mb, 0);
1560 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1561 mono_mb_emit_stloc (mb, array_var);
1563 /* save the old src pointer */
1564 mono_mb_emit_ldloc (mb, 0);
1565 mono_mb_emit_stloc (mb, src_var);
1566 /* save the old dst pointer */
1567 mono_mb_emit_ldloc (mb, 1);
1568 mono_mb_emit_stloc (mb, dst_var);
1570 /* Emit marshalling loop */
1571 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1572 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1573 mono_mb_emit_stloc (mb, index_var);
1576 label2 = mono_mb_get_label (mb);
1577 mono_mb_emit_ldloc (mb, index_var);
1578 mono_mb_emit_ldloc (mb, array_var);
1579 mono_mb_emit_byte (mb, CEE_LDLEN);
1580 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1583 mono_mb_emit_ldloc (mb, array_var);
1584 mono_mb_emit_ldloc (mb, index_var);
1585 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1586 mono_mb_emit_stloc (mb, 0);
1588 /* dst is already set */
1590 /* Do the conversion */
1591 emit_struct_conv (mb, eklass, FALSE);
1594 mono_mb_emit_add_to_local (mb, index_var, 1);
1596 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1598 mono_mb_patch_branch (mb, label3);
1600 /* restore the old src pointer */
1601 mono_mb_emit_ldloc (mb, src_var);
1602 mono_mb_emit_stloc (mb, 0);
1603 /* restore the old dst pointer */
1604 mono_mb_emit_ldloc (mb, dst_var);
1605 mono_mb_emit_stloc (mb, 1);
1608 mono_mb_patch_branch (mb, pos);
1611 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1612 mono_mb_emit_ldloc (mb, 0);
1613 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1614 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1616 mono_mb_emit_ldloc (mb, 1);
1617 mono_mb_emit_ldloc (mb, 0);
1618 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1619 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1620 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1621 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1622 mono_mb_patch_short_branch (mb, pos);
1625 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1626 int src_var, dst_var;
1628 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1629 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1631 mono_mb_emit_ldloc (mb, 0);
1632 mono_mb_emit_byte (mb, CEE_LDIND_I);
1633 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1635 /* save the old src pointer */
1636 mono_mb_emit_ldloc (mb, 0);
1637 mono_mb_emit_stloc (mb, src_var);
1638 /* save the old dst pointer */
1639 mono_mb_emit_ldloc (mb, 1);
1640 mono_mb_emit_stloc (mb, dst_var);
1642 /* src = pointer to object data */
1643 mono_mb_emit_ldloc (mb, 0);
1644 mono_mb_emit_byte (mb, CEE_LDIND_I);
1645 mono_mb_emit_icon (mb, sizeof (MonoObject));
1646 mono_mb_emit_byte (mb, CEE_ADD);
1647 mono_mb_emit_stloc (mb, 0);
1649 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1651 /* restore the old src pointer */
1652 mono_mb_emit_ldloc (mb, src_var);
1653 mono_mb_emit_stloc (mb, 0);
1654 /* restore the old dst pointer */
1655 mono_mb_emit_ldloc (mb, dst_var);
1656 mono_mb_emit_stloc (mb, 1);
1658 mono_mb_patch_branch (mb, pos);
1663 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1664 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1665 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1666 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1668 #endif /* DISABLE_COM */
1670 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1671 int dar_release_slot, pos;
1673 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1676 * The following is ifdefed-out, because I have no way of doing the
1677 * DangerousRelease when destroying the structure
1680 /* set release = false */
1681 mono_mb_emit_icon (mb, 0);
1682 mono_mb_emit_stloc (mb, dar_release_slot);
1683 if (!sh_dangerous_add_ref)
1684 init_safe_handle ();
1686 /* safehandle.DangerousAddRef (ref release) */
1687 mono_mb_emit_ldloc (mb, 0); /* the source */
1688 mono_mb_emit_byte (mb, CEE_LDIND_I);
1689 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1690 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1692 mono_mb_emit_ldloc (mb, 0);
1693 mono_mb_emit_byte (mb, CEE_LDIND_I);
1694 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1695 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1696 mono_mb_patch_branch (mb, pos);
1698 /* Pull the handle field from SafeHandle */
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_I);
1702 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1703 mono_mb_emit_byte (mb, CEE_LDIND_I);
1704 mono_mb_emit_byte (mb, CEE_STIND_I);
1708 case MONO_MARSHAL_CONV_HANDLEREF: {
1709 mono_mb_emit_ldloc (mb, 1);
1710 mono_mb_emit_ldloc (mb, 0);
1711 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1712 mono_mb_emit_byte (mb, CEE_ADD);
1713 mono_mb_emit_byte (mb, CEE_LDIND_I);
1714 mono_mb_emit_byte (mb, CEE_STIND_I);
1719 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1720 MonoException *exc = mono_get_exception_not_implemented (msg);
1723 mono_raise_exception (exc);
1729 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1731 MonoMarshalType *info;
1735 emit_struct_conv(mb, klass->parent, to_object);
1737 info = mono_marshal_load_type_info (klass);
1739 if (info->native_size == 0)
1742 if (klass->blittable) {
1743 int msize = mono_class_value_size (klass, NULL);
1744 g_assert (msize == info->native_size);
1745 mono_mb_emit_ldloc (mb, 1);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_icon (mb, msize);
1748 mono_mb_emit_byte (mb, CEE_PREFIX1);
1749 mono_mb_emit_byte (mb, CEE_CPBLK);
1751 mono_mb_emit_add_to_local (mb, 0, msize);
1752 mono_mb_emit_add_to_local (mb, 1, msize);
1756 for (i = 0; i < info->num_fields; i++) {
1757 MonoMarshalNative ntype;
1758 MonoMarshalConv conv;
1759 MonoType *ftype = info->fields [i].field->type;
1762 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1764 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1767 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1770 msize = klass->instance_size - info->fields [i].field->offset;
1771 usize = info->native_size - info->fields [i].offset;
1773 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1774 usize = info->fields [i + 1].offset - info->fields [i].offset;
1777 if (klass != mono_defaults.safehandle_class){
1779 * FIXME: Should really check for usize==0 and msize>0, but we apply
1780 * the layout to the managed structure as well.
1783 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1784 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1785 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1786 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1787 "reference field at the same offset as another field.",
1788 mono_type_full_name (&klass->byval_arg));
1791 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1792 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
1793 mono_type_full_name (&klass->byval_arg));
1798 case MONO_MARSHAL_CONV_NONE: {
1801 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1802 ftype->type == MONO_TYPE_U) {
1803 mono_mb_emit_ldloc (mb, 1);
1804 mono_mb_emit_ldloc (mb, 0);
1805 mono_mb_emit_byte (mb, CEE_LDIND_I);
1806 mono_mb_emit_byte (mb, CEE_STIND_I);
1817 case MONO_TYPE_BOOLEAN:
1820 case MONO_TYPE_CHAR:
1826 mono_mb_emit_ldloc (mb, 1);
1827 mono_mb_emit_ldloc (mb, 0);
1828 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1829 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1831 case MONO_TYPE_VALUETYPE: {
1832 int src_var, dst_var;
1834 if (ftype->data.klass->enumtype) {
1835 ftype = mono_class_enum_basetype (ftype->data.klass);
1839 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1840 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1842 /* save the old src pointer */
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_stloc (mb, src_var);
1845 /* save the old dst pointer */
1846 mono_mb_emit_ldloc (mb, 1);
1847 mono_mb_emit_stloc (mb, dst_var);
1849 emit_struct_conv (mb, ftype->data.klass, to_object);
1851 /* restore the old src pointer */
1852 mono_mb_emit_ldloc (mb, src_var);
1853 mono_mb_emit_stloc (mb, 0);
1854 /* restore the old dst pointer */
1855 mono_mb_emit_ldloc (mb, dst_var);
1856 mono_mb_emit_stloc (mb, 1);
1859 case MONO_TYPE_OBJECT: {
1860 mono_init_com_types ();
1862 static MonoMethod *variant_clear = NULL;
1863 static MonoMethod *get_object_for_native_variant = NULL;
1866 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1867 if (!get_object_for_native_variant)
1868 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1869 mono_mb_emit_ldloc (mb, 1);
1870 mono_mb_emit_ldloc (mb, 0);
1871 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1872 mono_mb_emit_byte (mb, CEE_STIND_REF);
1874 mono_mb_emit_ldloc (mb, 0);
1875 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1878 static MonoMethod *get_native_variant_for_object = NULL;
1880 if (!get_native_variant_for_object)
1881 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1883 mono_mb_emit_ldloc (mb, 0);
1884 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1885 mono_mb_emit_ldloc (mb, 1);
1886 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1892 g_warning ("marshaling type %02x not implemented", ftype->type);
1893 g_assert_not_reached ();
1898 int src_var, dst_var;
1900 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1901 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1903 /* save the old src pointer */
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_stloc (mb, src_var);
1906 /* save the old dst pointer */
1907 mono_mb_emit_ldloc (mb, 1);
1908 mono_mb_emit_stloc (mb, dst_var);
1911 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1913 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1915 /* restore the old src pointer */
1916 mono_mb_emit_ldloc (mb, src_var);
1917 mono_mb_emit_stloc (mb, 0);
1918 /* restore the old dst pointer */
1919 mono_mb_emit_ldloc (mb, dst_var);
1920 mono_mb_emit_stloc (mb, 1);
1925 mono_mb_emit_add_to_local (mb, 0, usize);
1926 mono_mb_emit_add_to_local (mb, 1, msize);
1928 mono_mb_emit_add_to_local (mb, 0, msize);
1929 mono_mb_emit_add_to_local (mb, 1, usize);
1935 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1937 /* Call DestroyStructure */
1938 /* FIXME: Only do this if needed */
1939 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1940 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1941 mono_mb_emit_ldloc (mb, struct_var);
1942 mono_mb_emit_icall (mb, mono_struct_delete_old);
1946 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1950 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1951 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1952 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1954 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1955 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1957 mono_mb_emit_icall (mb, checkpoint_func);
1959 mono_mb_patch_branch (mb, pos_noabort);
1963 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1965 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1968 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1972 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1974 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1978 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1980 emit_thread_interrupt_checkpoint (mb);
1983 static MonoAsyncResult *
1984 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1986 MonoMethodMessage *msg;
1987 MonoDelegate *async_callback;
1991 MonoMethod *method = NULL, *method2 = NULL;
1993 g_assert (delegate);
1995 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1997 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1998 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2000 /* If the target is a proxy, make a direct call. Is proxy's work
2001 // to make the call asynchronous.
2003 MonoAsyncResult *ares;
2005 MonoArray *out_args;
2007 method = delegate->method;
2009 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2010 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2011 g_assert(handle != NULL);
2012 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2013 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2014 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2015 MONO_OBJECT_SETREF (msg, async_result, ares);
2016 msg->call_type = CallType_BeginInvoke;
2018 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2023 klass = delegate->object.vtable->klass;
2025 method = mono_get_delegate_invoke (klass);
2026 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2029 g_assert (method != NULL);
2031 im = mono_get_delegate_invoke (method->klass);
2032 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2034 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2038 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2040 int i, params_var, tmp_var;
2042 /* allocate local (pointer) *params[] */
2043 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2044 /* allocate local (pointer) tmp */
2045 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2047 /* alloate space on stack to store an array of pointers to the arguments */
2048 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2049 mono_mb_emit_byte (mb, CEE_PREFIX1);
2050 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2051 mono_mb_emit_stloc (mb, params_var);
2054 mono_mb_emit_ldloc (mb, params_var);
2055 mono_mb_emit_stloc (mb, tmp_var);
2057 if (save_this && sig->hasthis) {
2058 mono_mb_emit_ldloc (mb, tmp_var);
2059 mono_mb_emit_ldarg_addr (mb, 0);
2060 mono_mb_emit_byte (mb, CEE_STIND_I);
2061 /* tmp = tmp + sizeof (gpointer) */
2062 if (sig->param_count)
2063 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2067 for (i = 0; i < sig->param_count; i++) {
2068 mono_mb_emit_ldloc (mb, tmp_var);
2069 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2070 mono_mb_emit_byte (mb, CEE_STIND_I);
2071 /* tmp = tmp + sizeof (gpointer) */
2072 if (i < (sig->param_count - 1))
2073 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2080 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2084 GString *res = g_string_new ("");
2087 g_string_append (res, prefix);
2088 g_string_append_c (res, '_');
2091 mono_type_get_desc (res, sig->ret, FALSE);
2094 g_string_append (res, "__this__");
2096 for (i = 0; i < sig->param_count; ++i) {
2097 g_string_append_c (res, '_');
2098 mono_type_get_desc (res, sig->params [i], FALSE);
2101 g_string_free (res, FALSE);
2106 * mono_marshal_get_string_encoding:
2108 * Return the string encoding which should be used for a given parameter.
2110 static MonoMarshalNative
2111 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2113 /* First try the parameter marshal info */
2115 if (spec->native == MONO_NATIVE_LPARRAY) {
2116 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2117 return spec->data.array_data.elem_type;
2120 return spec->native;
2124 return MONO_NATIVE_LPSTR;
2126 /* Then try the method level marshal info */
2127 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2128 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2129 return MONO_NATIVE_LPSTR;
2130 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2131 return MONO_NATIVE_LPWSTR;
2132 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2133 #ifdef PLATFORM_WIN32
2134 return MONO_NATIVE_LPWSTR;
2136 return MONO_NATIVE_LPSTR;
2139 return MONO_NATIVE_LPSTR;
2143 static MonoMarshalConv
2144 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2146 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2149 case MONO_NATIVE_LPWSTR:
2150 return MONO_MARSHAL_CONV_STR_LPWSTR;
2151 case MONO_NATIVE_LPSTR:
2152 return MONO_MARSHAL_CONV_STR_LPSTR;
2153 case MONO_NATIVE_LPTSTR:
2154 return MONO_MARSHAL_CONV_STR_LPTSTR;
2155 case MONO_NATIVE_BSTR:
2156 return MONO_MARSHAL_CONV_STR_BSTR;
2162 static MonoMarshalConv
2163 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2165 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2168 case MONO_NATIVE_LPWSTR:
2169 return MONO_MARSHAL_CONV_SB_LPWSTR;
2171 case MONO_NATIVE_LPSTR:
2172 return MONO_MARSHAL_CONV_SB_LPSTR;
2174 case MONO_NATIVE_LPTSTR:
2175 return MONO_MARSHAL_CONV_SB_LPTSTR;
2182 static MonoMarshalConv
2183 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2185 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2190 case MONO_NATIVE_LPWSTR:
2192 return MONO_MARSHAL_CONV_LPWSTR_STR;
2193 case MONO_NATIVE_LPSTR:
2194 return MONO_MARSHAL_CONV_LPSTR_STR;
2195 case MONO_NATIVE_LPTSTR:
2196 return MONO_MARSHAL_CONV_LPTSTR_STR;
2197 case MONO_NATIVE_BSTR:
2198 return MONO_MARSHAL_CONV_BSTR_STR;
2204 static MonoMarshalConv
2205 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2207 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2212 case MONO_NATIVE_LPWSTR:
2214 * mono_string_builder_to_utf16 does not allocate a
2215 * new buffer, so no need to free it.
2218 return MONO_MARSHAL_CONV_LPWSTR_SB;
2219 case MONO_NATIVE_LPSTR:
2220 return MONO_MARSHAL_CONV_LPSTR_SB;
2222 case MONO_NATIVE_LPTSTR:
2223 return MONO_MARSHAL_CONV_LPTSTR_SB;
2231 * Return whenever a field of a native structure or an array member needs to
2235 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2237 MonoMarshalNative encoding;
2238 MonoMarshalConv conv;
2241 case MONO_TYPE_VALUETYPE:
2242 /* FIXME: Optimize this */
2244 case MONO_TYPE_OBJECT:
2245 case MONO_TYPE_CLASS:
2246 if (t->data.klass == mono_defaults.stringbuilder_class) {
2248 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2252 case MONO_TYPE_STRING:
2253 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2254 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2261 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2264 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2267 mono_marshal_lock ();
2270 g_hash_table_new (hash_func, equal_func);
2271 mono_memory_barrier ();
2274 mono_marshal_unlock ();
2280 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2282 return get_cache (var, hash_func, equal_func);
2286 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2290 mono_marshal_lock ();
2291 res = g_hash_table_lookup (cache, key);
2292 mono_marshal_unlock ();
2297 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2301 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2304 datav = ((MonoMethodWrapper *)method)->method_data;
2308 /* Create the method from the builder and place it in the cache */
2310 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2311 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2316 mono_marshal_lock ();
2317 res = g_hash_table_lookup (cache, key);
2318 mono_marshal_unlock ();
2321 newm = mono_mb_create_method (mb, sig, max_stack);
2322 mono_marshal_lock ();
2323 res = g_hash_table_lookup (cache, key);
2326 g_hash_table_insert (cache, key, res);
2327 mono_marshal_method_set_wrapper_data (res, key);
2328 mono_marshal_unlock ();
2330 mono_marshal_unlock ();
2331 mono_free_method (newm);
2339 static inline MonoMethod*
2340 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2342 MonoMethod *res = NULL;
2343 MonoRemotingMethods *wrps;
2345 mono_marshal_lock ();
2346 if (method->klass->image->remoting_invoke_cache)
2347 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2352 switch (wrapper_type) {
2353 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2354 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2355 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2356 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2360 /* it is important to do the unlock after the load from wrps, since in
2361 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2362 * to take the loader lock and some other thread may set the fields.
2364 mono_marshal_unlock ();
2368 /* Create the method from the builder and place it in the cache */
2369 static inline MonoMethod*
2370 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2371 MonoMethodSignature *sig, int max_stack)
2373 MonoMethod **res = NULL;
2374 MonoRemotingMethods *wrps;
2375 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2377 mono_marshal_lock ();
2378 wrps = g_hash_table_lookup (cache, key);
2380 wrps = g_new0 (MonoRemotingMethods, 1);
2381 g_hash_table_insert (cache, key, wrps);
2384 switch (mb->method->wrapper_type) {
2385 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2386 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2387 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2388 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2389 default: g_assert_not_reached (); break;
2391 mono_marshal_unlock ();
2395 newm = mono_mb_create_method (mb, sig, max_stack);
2397 mono_marshal_lock ();
2400 mono_marshal_method_set_wrapper_data (*res, key);
2401 mono_marshal_unlock ();
2403 mono_marshal_unlock ();
2404 mono_free_method (newm);
2412 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2416 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2419 res = mono_method_get_wrapper_data (wrapper, 1);
2426 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2428 MonoMethodSignature *sig;
2429 MonoMethodBuilder *mb;
2435 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2436 !strcmp (method->name, "BeginInvoke"));
2438 sig = mono_signature_no_pinvoke (method);
2440 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2441 (GHashFunc)mono_signature_hash,
2442 (GCompareFunc)mono_metadata_signature_equal);
2443 if ((res = mono_marshal_find_in_cache (cache, sig)))
2446 g_assert (sig->hasthis);
2448 name = mono_signature_to_name (sig, "begin_invoke");
2449 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2452 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2454 mono_mb_emit_ldarg (mb, 0);
2455 mono_mb_emit_ldloc (mb, params_var);
2456 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2457 mono_mb_emit_byte (mb, CEE_RET);
2459 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2465 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2467 MonoDomain *domain = mono_domain_get ();
2468 MonoAsyncResult *ares;
2469 MonoMethod *method = NULL;
2470 MonoMethodSignature *sig;
2471 MonoMethodMessage *msg;
2472 MonoObject *res, *exc;
2473 MonoArray *out_args;
2476 g_assert (delegate);
2478 if (!delegate->method_info) {
2479 g_assert (delegate->method);
2480 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2483 if (!delegate->method_info || !delegate->method_info->method)
2484 g_assert_not_reached ();
2486 klass = delegate->object.vtable->klass;
2488 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2489 g_assert (method != NULL);
2491 sig = mono_signature_no_pinvoke (method);
2493 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2495 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2497 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2499 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
2500 mono_raise_exception (mono_get_exception_invalid_operation (
2501 "The IAsyncResult object provided does not match this delegate."));
2505 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2506 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2507 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2508 mono_message_init (domain, msg, delegate->method_info, NULL);
2509 msg->call_type = CallType_EndInvoke;
2510 MONO_OBJECT_SETREF (msg, async_result, ares);
2511 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2513 res = mono_thread_pool_finish (ares, &out_args, &exc);
2517 if (((MonoException*)exc)->stack_trace) {
2518 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2520 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2522 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2525 mono_raise_exception ((MonoException*)exc);
2528 mono_method_return_message_restore (method, params, out_args);
2533 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2535 MonoType *t = mono_type_get_underlying_type (return_type);
2537 if (return_type->byref)
2538 return_type = &mono_defaults.int_class->byval_arg;
2541 case MONO_TYPE_VOID:
2542 g_assert_not_reached ();
2545 case MONO_TYPE_STRING:
2546 case MONO_TYPE_CLASS:
2547 case MONO_TYPE_OBJECT:
2548 case MONO_TYPE_ARRAY:
2549 case MONO_TYPE_SZARRAY:
2553 case MONO_TYPE_BOOLEAN:
2556 case MONO_TYPE_CHAR:
2566 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2567 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2569 case MONO_TYPE_GENERICINST:
2570 if (!mono_type_generic_inst_is_valuetype (return_type))
2573 case MONO_TYPE_VALUETYPE: {
2574 MonoClass *klass = mono_class_from_mono_type (return_type);
2575 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2576 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2580 g_warning ("type 0x%x not handled", return_type->type);
2581 g_assert_not_reached ();
2584 mono_mb_emit_byte (mb, CEE_RET);
2588 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2590 MonoMethodSignature *sig;
2591 MonoMethodBuilder *mb;
2597 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2598 !strcmp (method->name, "EndInvoke"));
2600 sig = mono_signature_no_pinvoke (method);
2602 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2603 (GHashFunc)mono_signature_hash,
2604 (GCompareFunc)mono_metadata_signature_equal);
2605 if ((res = mono_marshal_find_in_cache (cache, sig)))
2608 g_assert (sig->hasthis);
2610 name = mono_signature_to_name (sig, "end_invoke");
2611 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2614 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2616 mono_mb_emit_ldarg (mb, 0);
2617 mono_mb_emit_ldloc (mb, params_var);
2618 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2620 if (sig->ret->type == MONO_TYPE_VOID) {
2621 mono_mb_emit_byte (mb, CEE_POP);
2622 mono_mb_emit_byte (mb, CEE_RET);
2624 mono_mb_emit_restore_result (mb, sig->ret);
2626 res = mono_mb_create_and_cache (cache, sig,
2627 mb, sig, sig->param_count + 16);
2634 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2636 MonoMethodMessage *msg;
2637 MonoTransparentProxy *this;
2638 MonoObject *res, *exc;
2639 MonoArray *out_args;
2641 this = *((MonoTransparentProxy **)params [0]);
2644 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2646 /* skip the this pointer */
2649 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2652 MonoMethodSignature *sig = mono_method_signature (method);
2653 int count = sig->param_count;
2654 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2656 for (i=0; i<count; i++) {
2657 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2658 if (class->valuetype) {
2659 if (sig->params [i]->byref) {
2660 mparams[i] = *((gpointer *)params [i]);
2662 /* runtime_invoke expects a boxed instance */
2663 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2664 mparams[i] = mono_nullable_box (params [i], class);
2666 mparams[i] = params [i];
2669 mparams[i] = *((gpointer**)params [i]);
2673 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2676 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2678 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2681 mono_raise_exception ((MonoException *)exc);
2683 mono_method_return_message_restore (method, params, out_args);
2689 mono_marshal_get_remoting_invoke (MonoMethod *method)
2691 MonoMethodSignature *sig;
2692 MonoMethodBuilder *mb;
2698 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2701 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2702 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
2704 return mono_cominterop_get_invoke (method);
2706 g_assert_not_reached ();
2710 sig = mono_signature_no_pinvoke (method);
2712 /* we cant remote methods without this pointer */
2716 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2719 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2720 mb->method->save_lmf = 1;
2722 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2724 mono_mb_emit_ptr (mb, method);
2725 mono_mb_emit_ldloc (mb, params_var);
2726 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2727 emit_thread_interrupt_checkpoint (mb);
2729 if (sig->ret->type == MONO_TYPE_VOID) {
2730 mono_mb_emit_byte (mb, CEE_POP);
2731 mono_mb_emit_byte (mb, CEE_RET);
2733 mono_mb_emit_restore_result (mb, sig->ret);
2736 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2742 /* mono_get_xdomain_marshal_type()
2743 * Returns the kind of marshalling that a type needs for cross domain calls.
2745 static MonoXDomainMarshalType
2746 mono_get_xdomain_marshal_type (MonoType *t)
2749 case MONO_TYPE_VOID:
2750 g_assert_not_reached ();
2754 case MONO_TYPE_BOOLEAN:
2757 case MONO_TYPE_CHAR:
2764 return MONO_MARSHAL_NONE;
2765 case MONO_TYPE_STRING:
2766 return MONO_MARSHAL_COPY;
2767 case MONO_TYPE_ARRAY:
2768 case MONO_TYPE_SZARRAY: {
2769 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2770 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2771 return MONO_MARSHAL_COPY;
2776 return MONO_MARSHAL_SERIALIZE;
2780 /* mono_marshal_xdomain_copy_value
2781 * Makes a copy of "val" suitable for the current domain.
2784 mono_marshal_xdomain_copy_value (MonoObject *val)
2787 if (val == NULL) return NULL;
2789 domain = mono_domain_get ();
2791 switch (mono_object_class (val)->byval_arg.type) {
2792 case MONO_TYPE_VOID:
2793 g_assert_not_reached ();
2797 case MONO_TYPE_BOOLEAN:
2800 case MONO_TYPE_CHAR:
2806 case MONO_TYPE_R8: {
2807 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2809 case MONO_TYPE_STRING: {
2810 MonoString *str = (MonoString *) val;
2811 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2813 case MONO_TYPE_ARRAY:
2814 case MONO_TYPE_SZARRAY: {
2816 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2817 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2818 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2819 if (mt == MONO_MARSHAL_COPY) {
2820 int i, len = mono_array_length (acopy);
2821 for (i = 0; i < len; i++) {
2822 MonoObject *item = mono_array_get (acopy, gpointer, i);
2823 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2826 return (MonoObject *) acopy;
2830 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2831 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2832 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2833 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2834 newsb->length = oldsb->length;
2835 newsb->max_capacity = (gint32)0x7fffffff;
2836 return (MonoObject *) newsb;
2841 /* mono_marshal_xdomain_copy_out_value()
2842 * Copies the contents of the src instance into the dst instance. src and dst
2843 * must have the same type, and if they are arrays, the same size.
2846 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2848 if (src == NULL || dst == NULL) return;
2850 g_assert (mono_object_class (src) == mono_object_class (dst));
2852 switch (mono_object_class (src)->byval_arg.type) {
2853 case MONO_TYPE_ARRAY:
2854 case MONO_TYPE_SZARRAY: {
2855 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2856 if (mt == MONO_MARSHAL_SERIALIZE) return;
2857 if (mt == MONO_MARSHAL_COPY) {
2858 int i, len = mono_array_length ((MonoArray *)dst);
2859 for (i = 0; i < len; i++) {
2860 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2861 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2864 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2870 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2871 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2872 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2874 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)));
2875 dst_sb->cached_str = NULL;
2876 dst_sb->length = src_sb->length;
2881 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2883 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2884 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2888 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2890 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2893 /* mono_marshal_supports_fast_xdomain()
2894 * Returns TRUE if the method can use the fast xdomain wrapper.
2897 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2899 return !method->klass->contextbound &&
2900 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2904 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2906 MonoDomain *current_domain = mono_domain_get ();
2907 MonoDomain *domain = mono_domain_get_by_id (id);
2909 if (!domain || !mono_domain_set (domain, FALSE))
2910 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2913 mono_thread_push_appdomain_ref (domain);
2915 mono_thread_pop_appdomain_ref ();
2917 return current_domain->domain_id;
2921 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
2923 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
2926 /* mono_marshal_emit_load_domain_method ()
2927 * Loads into the stack a pointer to the code of the provided method for
2928 * the current domain.
2931 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
2933 /* We need a pointer to the method for the running domain (not the domain
2934 * that compiles the method).
2936 mono_mb_emit_ptr (mb, method);
2937 mono_mb_emit_icall (mb, mono_compile_method);
2940 /* mono_marshal_check_domain_image ()
2941 * Returns TRUE if the image is loaded in the specified
2942 * application domain.
2945 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
2950 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2954 mono_domain_assemblies_lock (domain);
2955 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
2957 if (ass->image == image)
2960 mono_domain_assemblies_unlock (domain);
2965 /* mono_marshal_get_xappdomain_dispatch ()
2966 * Generates a method that dispatches a method call from another domain into
2967 * the current domain.
2970 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
2972 MonoMethodSignature *sig, *csig;
2973 MonoMethodBuilder *mb;
2975 int i, j, param_index, copy_locals_base;
2976 MonoClass *ret_class = NULL;
2977 int loc_array=0, loc_return=0, loc_serialized_exc=0;
2978 MonoExceptionClause *main_clause;
2980 gboolean copy_return;
2982 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
2985 sig = mono_method_signature (method);
2986 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
2989 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
2990 csig->params [j++] = &mono_defaults.object_class->byval_arg;
2991 csig->params [j++] = &byte_array_class->this_arg;
2992 csig->params [j++] = &byte_array_class->this_arg;
2993 for (i = 0; i < sig->param_count; i++) {
2994 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
2995 csig->params [j++] = sig->params [i];
2998 csig->ret = sig->ret;
3000 csig->ret = &mono_defaults.void_class->byval_arg;
3002 csig->hasthis = FALSE;
3004 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3005 mb->method->save_lmf = 1;
3009 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3010 if (complex_count > 0)
3011 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3012 if (sig->ret->type != MONO_TYPE_VOID) {
3013 loc_return = mono_mb_add_local (mb, sig->ret);
3014 ret_class = mono_class_from_mono_type (sig->ret);
3019 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3020 main_clause->try_offset = mono_mb_get_label (mb);
3022 /* Clean the call context */
3024 mono_mb_emit_byte (mb, CEE_LDNULL);
3025 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3026 mono_mb_emit_byte (mb, CEE_POP);
3028 /* Deserialize call data */
3030 mono_mb_emit_ldarg (mb, 1);
3031 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3032 mono_mb_emit_byte (mb, CEE_DUP);
3033 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3035 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3036 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3038 if (complex_count > 0)
3039 mono_mb_emit_stloc (mb, loc_array);
3041 mono_mb_emit_byte (mb, CEE_POP);
3043 mono_mb_patch_short_branch (mb, pos);
3045 /* Get the target object */
3047 mono_mb_emit_ldarg (mb, 0);
3048 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3050 /* Load the arguments */
3052 copy_locals_base = mb->locals;
3053 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3055 for (i = 0; i < sig->param_count; i++) {
3056 MonoType *pt = sig->params [i];
3057 MonoClass *pclass = mono_class_from_mono_type (pt);
3058 switch (marshal_types [i]) {
3059 case MONO_MARSHAL_SERIALIZE: {
3060 /* take the value from the serialized array */
3061 mono_mb_emit_ldloc (mb, loc_array);
3062 mono_mb_emit_icon (mb, j++);
3064 if (pclass->valuetype) {
3065 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3066 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3068 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3071 if (pclass->valuetype) {
3072 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3073 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3074 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3076 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3077 if (pclass != mono_defaults.object_class) {
3078 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3084 case MONO_MARSHAL_COPY_OUT: {
3085 /* Keep a local copy of the value since we need to copy it back after the call */
3086 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3087 mono_mb_emit_ldarg (mb, param_index++);
3088 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3089 mono_mb_emit_byte (mb, CEE_DUP);
3090 mono_mb_emit_stloc (mb, copy_local);
3093 case MONO_MARSHAL_COPY: {
3094 mono_mb_emit_ldarg (mb, param_index);
3096 mono_mb_emit_byte (mb, CEE_DUP);
3097 mono_mb_emit_byte (mb, CEE_DUP);
3098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3099 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3100 mono_mb_emit_byte (mb, CEE_STIND_REF);
3102 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3107 case MONO_MARSHAL_NONE:
3108 mono_mb_emit_ldarg (mb, param_index++);
3113 /* Make the call to the real object */
3115 emit_thread_force_interrupt_checkpoint (mb);
3117 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3119 if (sig->ret->type != MONO_TYPE_VOID)
3120 mono_mb_emit_stloc (mb, loc_return);
3122 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3126 for (i = 0; i < sig->param_count; i++) {
3127 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3128 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3129 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3130 mono_mb_emit_ldarg (mb, param_index);
3131 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3136 /* Serialize the return values */
3138 if (complex_out_count > 0) {
3139 /* Reset parameters in the array that don't need to be serialized back */
3141 for (i = 0; i < sig->param_count; i++) {
3142 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3143 if (!sig->params [i]->byref) {
3144 mono_mb_emit_ldloc (mb, loc_array);
3145 mono_mb_emit_icon (mb, j);
3146 mono_mb_emit_byte (mb, CEE_LDNULL);
3147 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3152 /* Add the return value to the array */
3154 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3155 mono_mb_emit_ldloc (mb, loc_array);
3156 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3157 mono_mb_emit_ldloc (mb, loc_return);
3158 if (ret_class->valuetype) {
3159 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3161 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3166 mono_mb_emit_ldarg (mb, 1);
3167 mono_mb_emit_ldloc (mb, loc_array);
3168 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3169 mono_mb_emit_byte (mb, CEE_STIND_REF);
3170 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3171 mono_mb_emit_ldarg (mb, 1);
3172 mono_mb_emit_ldloc (mb, loc_return);
3173 if (ret_class->valuetype) {
3174 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3176 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3177 mono_mb_emit_byte (mb, CEE_STIND_REF);
3179 mono_mb_emit_ldarg (mb, 1);
3180 mono_mb_emit_byte (mb, CEE_LDNULL);
3181 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3182 mono_mb_emit_byte (mb, CEE_STIND_REF);
3185 mono_mb_emit_ldarg (mb, 2);
3186 mono_mb_emit_byte (mb, CEE_LDNULL);
3187 mono_mb_emit_byte (mb, CEE_STIND_REF);
3188 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3190 /* Main exception catch */
3191 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3192 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3193 main_clause->data.catch_class = mono_defaults.object_class;
3196 main_clause->handler_offset = mono_mb_get_label (mb);
3197 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3198 mono_mb_emit_stloc (mb, loc_serialized_exc);
3199 mono_mb_emit_ldarg (mb, 2);
3200 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3201 mono_mb_emit_byte (mb, CEE_STIND_REF);
3202 mono_mb_emit_branch (mb, CEE_LEAVE);
3203 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3206 mono_mb_patch_branch (mb, pos_leave);
3209 mono_mb_emit_ldloc (mb, loc_return);
3211 mono_mb_emit_byte (mb, CEE_RET);
3213 mono_mb_set_clauses (mb, 1, main_clause);
3215 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3221 /* mono_marshal_get_xappdomain_invoke ()
3222 * Generates a fast remoting wrapper for cross app domain calls.
3225 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3227 MonoMethodSignature *sig;
3228 MonoMethodBuilder *mb;
3230 int i, j, complex_count, complex_out_count, copy_locals_base;
3232 MonoClass *ret_class = NULL;
3233 MonoMethod *xdomain_method;
3234 int ret_marshal_type = MONO_MARSHAL_NONE;
3235 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3236 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3237 int pos, pos_dispatch, pos_noex;
3238 gboolean copy_return = FALSE;
3242 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3245 /* we cant remote methods without this pointer */
3246 if (!mono_method_signature (method)->hasthis)
3249 if (!mono_marshal_supports_fast_xdomain (method))
3250 return mono_marshal_get_remoting_invoke (method);
3252 mono_remoting_marshal_init ();
3254 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3257 sig = mono_signature_no_pinvoke (method);
3259 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3260 mb->method->save_lmf = 1;
3262 /* Count the number of parameters that need to be serialized */
3264 marshal_types = alloca (sizeof (int) * sig->param_count);
3265 complex_count = complex_out_count = 0;
3266 for (i = 0; i < sig->param_count; i++) {
3267 MonoType *ptype = sig->params[i];
3268 int mt = mono_get_xdomain_marshal_type (ptype);
3270 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3271 * the copy will be made by reusing the original object instance
3273 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3274 mt = MONO_MARSHAL_COPY_OUT;
3275 else if (mt == MONO_MARSHAL_SERIALIZE) {
3277 if (ptype->byref) complex_out_count++;
3279 marshal_types [i] = mt;
3282 if (sig->ret->type != MONO_TYPE_VOID) {
3283 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3284 ret_class = mono_class_from_mono_type (sig->ret);
3285 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3290 if (complex_count > 0)
3291 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3292 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3293 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3295 loc_return = mono_mb_add_local (mb, sig->ret);
3296 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3297 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3298 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3299 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3301 /* Save thread domain data */
3303 mono_mb_emit_icall (mb, mono_context_get);
3304 mono_mb_emit_byte (mb, CEE_DUP);
3305 mono_mb_emit_stloc (mb, loc_context);
3307 /* If the thread is not running in the default context, it needs to go
3308 * through the whole remoting sink, since the context is going to change
3310 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3311 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3313 /* Another case in which the fast path can't be used: when the target domain
3314 * has a different image for the same assembly.
3317 /* Get the target domain id */
3319 mono_mb_emit_ldarg (mb, 0);
3320 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3321 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3322 mono_mb_emit_byte (mb, CEE_DUP);
3323 mono_mb_emit_stloc (mb, loc_real_proxy);
3325 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3326 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3327 mono_mb_emit_stloc (mb, loc_domainid);
3329 /* Check if the target domain has the same image for the required assembly */
3331 mono_mb_emit_ldloc (mb, loc_domainid);
3332 mono_mb_emit_ptr (mb, method->klass->image);
3333 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3334 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3336 /* Use the whole remoting sink to dispatch this message */
3338 mono_mb_patch_short_branch (mb, pos);
3340 mono_mb_emit_ldarg (mb, 0);
3341 for (i = 0; i < sig->param_count; i++)
3342 mono_mb_emit_ldarg (mb, i + 1);
3344 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3345 mono_mb_emit_byte (mb, CEE_RET);
3346 mono_mb_patch_short_branch (mb, pos_dispatch);
3348 /* Create the array that will hold the parameters to be serialized */
3350 if (complex_count > 0) {
3351 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 */
3352 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3355 for (i = 0; i < sig->param_count; i++) {
3357 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3358 pclass = mono_class_from_mono_type (sig->params[i]);
3359 mono_mb_emit_byte (mb, CEE_DUP);
3360 mono_mb_emit_icon (mb, j);
3361 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3362 if (sig->params[i]->byref) {
3363 if (pclass->valuetype)
3364 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3366 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3368 if (pclass->valuetype)
3369 mono_mb_emit_op (mb, CEE_BOX, pclass);
3370 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3373 mono_mb_emit_stloc (mb, loc_array);
3375 /* Serialize parameters */
3377 mono_mb_emit_ldloc (mb, loc_array);
3378 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3379 mono_mb_emit_stloc (mb, loc_serialized_data);
3381 mono_mb_emit_byte (mb, CEE_LDNULL);
3382 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3383 mono_mb_emit_stloc (mb, loc_serialized_data);
3388 mono_mb_emit_ldloc (mb, loc_domainid);
3389 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3390 mono_marshal_emit_switch_domain (mb);
3391 mono_mb_emit_stloc (mb, loc_old_domainid);
3393 /* Load the arguments */
3395 mono_mb_emit_ldloc (mb, loc_real_proxy);
3396 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3397 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3399 copy_locals_base = mb->locals;
3400 for (i = 0; i < sig->param_count; i++) {
3401 switch (marshal_types [i]) {
3402 case MONO_MARSHAL_SERIALIZE:
3404 case MONO_MARSHAL_COPY: {
3405 mono_mb_emit_ldarg (mb, i+1);
3406 if (sig->params [i]->byref) {
3407 /* make a local copy of the byref parameter. The real parameter
3408 * will be updated after the xdomain call
3410 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3411 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3412 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3413 mono_mb_emit_stloc (mb, copy_local);
3414 mono_mb_emit_ldloc_addr (mb, copy_local);
3418 case MONO_MARSHAL_COPY_OUT:
3419 case MONO_MARSHAL_NONE:
3420 mono_mb_emit_ldarg (mb, i+1);
3425 /* Make the call to the invoke wrapper in the target domain */
3427 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3428 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3429 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3432 mono_mb_emit_stloc (mb, loc_return);
3436 mono_mb_emit_ldloc (mb, loc_old_domainid);
3437 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3438 mono_marshal_emit_switch_domain (mb);
3439 mono_mb_emit_byte (mb, CEE_POP);
3441 /* Restore thread domain data */
3443 mono_mb_emit_ldloc (mb, loc_context);
3444 mono_mb_emit_icall (mb, mono_context_set);
3446 /* if (loc_serialized_exc != null) ... */
3448 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3449 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3451 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3452 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3453 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3454 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3455 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3456 mono_mb_emit_byte (mb, CEE_THROW);
3457 mono_mb_patch_short_branch (mb, pos_noex);
3459 /* copy back non-serialized output parameters */
3462 for (i = 0; i < sig->param_count; i++) {
3463 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3464 mono_mb_emit_ldarg (mb, i + 1);
3465 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3466 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3467 mono_mb_emit_byte (mb, CEE_STIND_REF);
3470 /* Deserialize out parameters */
3472 if (complex_out_count > 0) {
3473 mono_mb_emit_ldloc (mb, loc_serialized_data);
3474 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3475 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3476 mono_mb_emit_stloc (mb, loc_array);
3478 /* Copy back output parameters and return type */
3481 for (i = 0; i < sig->param_count; i++) {
3482 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3483 if (sig->params[i]->byref) {
3484 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3485 mono_mb_emit_ldarg (mb, i + 1);
3486 mono_mb_emit_ldloc (mb, loc_array);
3487 mono_mb_emit_icon (mb, j);
3488 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3489 if (pclass->valuetype) {
3490 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3491 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3492 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3494 if (pclass != mono_defaults.object_class)
3495 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3496 mono_mb_emit_byte (mb, CEE_STIND_REF);
3502 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3503 mono_mb_emit_ldloc (mb, loc_array);
3504 mono_mb_emit_icon (mb, complex_count);
3505 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3506 if (ret_class->valuetype) {
3507 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3508 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3511 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3512 mono_mb_emit_ldloc (mb, loc_serialized_data);
3513 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3514 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3515 if (ret_class->valuetype) {
3516 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3517 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3518 } else if (ret_class != mono_defaults.object_class) {
3519 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3522 mono_mb_emit_ldloc (mb, loc_serialized_data);
3523 mono_mb_emit_byte (mb, CEE_DUP);
3524 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3525 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3527 mono_mb_patch_short_branch (mb, pos);
3528 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3529 mono_mb_emit_byte (mb, CEE_POP);
3533 mono_mb_emit_ldloc (mb, loc_return);
3534 if (ret_marshal_type == MONO_MARSHAL_COPY)
3535 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3538 mono_mb_emit_byte (mb, CEE_RET);
3540 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3547 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3549 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3550 return mono_marshal_get_xappdomain_invoke (method);
3551 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3553 return mono_cominterop_get_invoke (method);
3555 g_assert_not_reached ();
3558 return mono_marshal_get_remoting_invoke (method);
3562 G_GNUC_UNUSED static gpointer
3563 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3565 if (rp->target_domain_id != -1)
3566 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3568 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3572 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3574 MonoMethodSignature *sig;
3575 MonoMethodBuilder *mb;
3576 MonoMethod *res, *native;
3577 int i, pos, pos_rem;
3581 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3584 /* we cant remote methods without this pointer */
3585 g_assert (mono_method_signature (method)->hasthis);
3587 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3590 sig = mono_signature_no_pinvoke (method);
3592 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3594 for (i = 0; i <= sig->param_count; i++)
3595 mono_mb_emit_ldarg (mb, i);
3597 mono_mb_emit_ldarg (mb, 0);
3598 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3600 if (mono_marshal_supports_fast_xdomain (method)) {
3601 mono_mb_emit_ldarg (mb, 0);
3602 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3604 /* wrapper for cross app domain calls */
3605 native = mono_marshal_get_xappdomain_invoke (method);
3606 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3607 mono_mb_emit_byte (mb, CEE_RET);
3609 mono_mb_patch_branch (mb, pos_rem);
3611 /* wrapper for normal remote calls */
3612 native = mono_marshal_get_remoting_invoke (method);
3613 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3614 mono_mb_emit_byte (mb, CEE_RET);
3617 mono_mb_patch_branch (mb, pos);
3618 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3619 mono_mb_emit_byte (mb, CEE_RET);
3621 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3629 MonoMethodSignature *sig;
3631 } SignatureMethodPair;
3634 signature_method_pair_hash (gconstpointer data)
3636 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3638 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3642 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3644 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3648 free_signature_method_pair (SignatureMethodPair *pair)
3654 * the returned method invokes all methods in a multicast delegate.
3657 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3659 MonoMethodSignature *sig, *static_sig;
3661 MonoMethodBuilder *mb;
3662 MonoMethod *res, *newm;
3664 SignatureMethodPair key;
3665 SignatureMethodPair *new_key;
3666 int local_prev, local_target;
3669 MonoMethod *target_method = NULL;
3670 MonoClass *target_class = NULL;
3671 gboolean callvirt = FALSE;
3674 * If the delegate target is null, and the target method is not static, a virtual
3675 * call is made to that method with the first delegate argument as this. This is
3676 * a non-documented .NET feature.
3678 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3680 target_method = del->method;
3681 if (target_method->is_inflated) {
3682 MonoType *target_type;
3684 g_assert (method->signature->hasthis);
3685 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3686 mono_method_get_context (method));
3687 target_class = mono_class_from_mono_type (target_type);
3689 target_class = del->method->klass;
3693 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3694 !strcmp (method->name, "Invoke"));
3696 sig = mono_signature_no_pinvoke (method);
3699 /* We need to cache the signature+method pair */
3700 mono_marshal_lock ();
3701 if (!method->klass->image->delegate_abstract_invoke_cache)
3702 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3703 cache = method->klass->image->delegate_abstract_invoke_cache;
3705 key.method = target_method;
3706 res = g_hash_table_lookup (cache, &key);
3707 mono_marshal_unlock ();
3711 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3712 (GHashFunc)mono_signature_hash,
3713 (GCompareFunc)mono_metadata_signature_equal);
3714 if ((res = mono_marshal_find_in_cache (cache, sig)))
3718 static_sig = signature_dup (method->klass->image, sig);
3719 static_sig->hasthis = 0;
3721 name = mono_signature_to_name (sig, "invoke");
3722 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3725 /* allocate local 0 (object) */
3726 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3727 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3729 g_assert (sig->hasthis);
3733 * prev.Invoke( args .. );
3734 * return this.<target>( args .. );
3737 /* this wrapper can be used in unmanaged-managed transitions */
3738 emit_thread_interrupt_checkpoint (mb);
3740 /* get this->prev */
3741 mono_mb_emit_ldarg (mb, 0);
3742 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3743 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3744 mono_mb_emit_stloc (mb, local_prev);
3745 mono_mb_emit_ldloc (mb, local_prev);
3747 /* if prev != null */
3748 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3752 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3753 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3755 mono_mb_emit_ldloc (mb, local_prev);
3756 for (i = 0; i < sig->param_count; i++)
3757 mono_mb_emit_ldarg (mb, i + 1);
3758 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3759 if (sig->ret->type != MONO_TYPE_VOID)
3760 mono_mb_emit_byte (mb, CEE_POP);
3762 /* continued or prev == null */
3763 mono_mb_patch_branch (mb, pos0);
3765 /* get this->target */
3766 mono_mb_emit_ldarg (mb, 0);
3767 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3768 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3769 mono_mb_emit_stloc (mb, local_target);
3771 /* if target != null */
3772 mono_mb_emit_ldloc (mb, local_target);
3773 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3775 /* then call this->method_ptr nonstatic */
3778 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3780 mono_mb_emit_ldloc (mb, local_target);
3781 for (i = 0; i < sig->param_count; ++i)
3782 mono_mb_emit_ldarg (mb, i + 1);
3783 mono_mb_emit_ldarg (mb, 0);
3784 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3785 mono_mb_emit_byte (mb, CEE_LDIND_I );
3786 mono_mb_emit_op (mb, CEE_CALLI, sig);
3788 mono_mb_emit_byte (mb, CEE_RET);
3791 /* else [target == null] call this->method_ptr static */
3792 mono_mb_patch_branch (mb, pos0);
3795 mono_mb_emit_ldarg (mb, 1);
3796 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3797 for (i = 1; i < sig->param_count; ++i)
3798 mono_mb_emit_ldarg (mb, i + 1);
3799 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3801 for (i = 0; i < sig->param_count; ++i)
3802 mono_mb_emit_ldarg (mb, i + 1);
3803 mono_mb_emit_ldarg (mb, 0);
3804 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3805 mono_mb_emit_byte (mb, CEE_LDIND_I );
3806 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3809 mono_mb_emit_byte (mb, CEE_RET);
3812 // From mono_mb_create_and_cache
3813 mb->skip_visibility = 1;
3814 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3815 /*We perform double checked locking, so must fence before publishing*/
3816 mono_memory_barrier ();
3817 mono_marshal_lock ();
3818 res = g_hash_table_lookup (cache, &key);
3821 new_key = g_new0 (SignatureMethodPair, 1);
3823 new_key->method = target_method;
3824 g_hash_table_insert (cache, new_key, res);
3825 mono_marshal_method_set_wrapper_data (res, new_key);
3826 mono_marshal_unlock ();
3828 mono_marshal_unlock ();
3829 mono_free_method (newm);
3832 mb->skip_visibility = 1;
3833 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3841 * signature_dup_add_this:
3843 * Make a copy of @sig, adding an explicit this argument.
3845 static MonoMethodSignature*
3846 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3848 MonoMethodSignature *res;
3851 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3852 memcpy (res, sig, sizeof (MonoMethodSignature));
3853 res->param_count = sig->param_count + 1;
3854 res->hasthis = FALSE;
3855 for (i = sig->param_count - 1; i >= 0; i --)
3856 res->params [i + 1] = sig->params [i];
3857 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3863 MonoMethodSignature *ctor_sig;
3864 MonoMethodSignature *sig;
3867 /* protected by the marshal lock, contains CtorSigPair pointers */
3868 static GSList *strsig_list = NULL;
3870 static MonoMethodSignature *
3871 lookup_string_ctor_signature (MonoMethodSignature *sig)
3873 MonoMethodSignature *callsig;
3877 mono_marshal_lock ();
3879 for (item = strsig_list; item; item = item->next) {
3881 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3882 * because it is lock-free.
3884 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3889 mono_marshal_unlock ();
3893 static MonoMethodSignature *
3894 add_string_ctor_signature (MonoMethod *method)
3896 MonoMethodSignature *callsig;
3899 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3900 callsig->ret = &mono_defaults.string_class->byval_arg;
3901 cs = g_new (CtorSigPair, 1);
3903 cs->ctor_sig = mono_method_signature (method);
3905 mono_marshal_lock ();
3906 strsig_list = g_slist_prepend (strsig_list, cs);
3907 mono_marshal_unlock ();
3912 get_runtime_invoke_type (MonoType *t)
3915 return &mono_defaults.int_class->byval_arg;
3919 return &mono_defaults.sbyte_class->byval_arg;
3921 return &mono_defaults.int16_class->byval_arg;
3923 return &mono_defaults.int32_class->byval_arg;
3925 return &mono_defaults.int64_class->byval_arg;
3926 case MONO_TYPE_BOOLEAN:
3927 return &mono_defaults.byte_class->byval_arg;
3928 case MONO_TYPE_CHAR:
3929 return &mono_defaults.int16_class->byval_arg;
3931 return &mono_defaults.int_class->byval_arg;
3932 case MONO_TYPE_VALUETYPE:
3935 if (MONO_TYPE_IS_REFERENCE (t))
3936 return &mono_defaults.object_class->byval_arg;
3942 * mono_marshal_get_runtime_invoke_sig:
3944 * Return a common signature used for sharing runtime invoke wrappers.
3946 static MonoMethodSignature*
3947 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3949 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3952 res->ret = get_runtime_invoke_type (sig->ret);
3953 for (i = 0; i < res->param_count; ++i)
3954 res->params [i] = get_runtime_invoke_type (sig->params [i]);
3960 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3962 /* Can't share wrappers which return a vtype since it needs to be boxed */
3963 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)))
3966 return mono_metadata_signature_equal (sig1, sig2);
3970 * generates IL code for the runtime invoke function
3971 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3973 * we also catch exceptions if exc != null
3976 mono_marshal_get_runtime_invoke (MonoMethod *method)
3978 MonoMethodSignature *sig, *csig, *callsig;
3979 MonoExceptionClause *clause;
3980 MonoMethodBuilder *mb;
3981 GHashTable *cache = NULL;
3982 MonoClass *target_klass;
3983 MonoMethod *res = NULL;
3984 static MonoString *string_dummy = NULL;
3985 static MonoMethodSignature *cctor_signature = NULL;
3986 static MonoMethodSignature *finalize_signature = NULL;
3989 gboolean need_direct_wrapper = FALSE;
3990 int *tmp_nullable_locals;
3994 if (!cctor_signature) {
3995 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3996 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3998 if (!finalize_signature) {
3999 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4000 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4001 finalize_signature->hasthis = 1;
4005 * Use a separate cache indexed by methods to speed things up and to avoid the
4006 * boundless mempool growth caused by the signature_dup stuff below.
4008 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4009 res = mono_marshal_find_in_cache (cache, method);
4013 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4014 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4016 * Array Get/Set/Address methods. The JIT implements them using inline code
4017 * so we need to create an invoke wrapper which calls the method directly.
4019 need_direct_wrapper = TRUE;
4022 if (method->string_ctor) {
4023 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4025 callsig = add_string_ctor_signature (method);
4027 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4029 * Valuetype methods receive a managed pointer as the this argument.
4030 * Create a new signature to reflect this.
4032 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4034 if (method->dynamic)
4035 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4037 callsig = mono_method_signature (method);
4041 /* Vtypes/nullables/Byrefs cause too many problems */
4042 for (i = 0; i < callsig->param_count; ++i) {
4043 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4044 need_direct_wrapper = TRUE;
4048 * We try to share runtime invoke wrappers between different methods but have to
4049 * be careful about methods whose klass has a type cctor, since putting the wrapper
4050 * into that klass would mean that calling a method of klass A might invoke the
4051 * type initializer of class B, or throw an exception if the type initializer
4052 * was called before and failed. See #349621 for an example.
4053 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4055 if (method->klass->image == mono_defaults.corlib)
4056 target_klass = mono_defaults.object_class;
4058 /* Try to share wrappers for non-corlib methods with simple signatures */
4059 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4060 callsig = cctor_signature;
4061 target_klass = mono_defaults.object_class;
4062 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4063 callsig = finalize_signature;
4064 target_klass = mono_defaults.object_class;
4066 // FIXME: This breaks too many things
4068 if (mono_class_get_cctor (method->klass))
4069 need_direct_wrapper = TRUE;
4073 * Can't put these wrappers into object, since they reference non-corlib
4074 * metadata (callsig).
4076 target_klass = method->klass;
4080 if (need_direct_wrapper) {
4081 /* Already searched at the start */
4083 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4085 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4086 (GHashFunc)mono_signature_hash,
4087 (GCompareFunc)runtime_invoke_signature_equal);
4089 /* from mono_marshal_find_in_cache */
4090 mono_marshal_lock ();
4091 res = g_hash_table_lookup (cache, callsig);
4092 mono_marshal_unlock ();
4099 // FIXME: When to free callsig ?
4102 /* to make it work with our special string constructors */
4103 if (!string_dummy) {
4104 MONO_GC_REGISTER_ROOT (string_dummy);
4105 string_dummy = mono_string_new_wrapper ("dummy");
4108 sig = mono_method_signature (method);
4110 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4112 csig->ret = &mono_defaults.object_class->byval_arg;
4113 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4114 csig->params [0] = callsig->params [0];
4116 csig->params [0] = &mono_defaults.object_class->byval_arg;
4117 csig->params [1] = &mono_defaults.int_class->byval_arg;
4118 csig->params [2] = &mono_defaults.int_class->byval_arg;
4119 csig->params [3] = &mono_defaults.int_class->byval_arg;
4121 name = mono_signature_to_name (callsig, "runtime_invoke");
4122 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4125 /* allocate local 0 (object) tmp */
4126 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4127 /* allocate local 1 (object) exc */
4128 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4130 /* cond set *exc to null */
4131 mono_mb_emit_byte (mb, CEE_LDARG_2);
4132 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4133 mono_mb_emit_byte (mb, 3);
4134 mono_mb_emit_byte (mb, CEE_LDARG_2);
4135 mono_mb_emit_byte (mb, CEE_LDNULL);
4136 mono_mb_emit_byte (mb, CEE_STIND_REF);
4138 emit_thread_force_interrupt_checkpoint (mb);
4141 if (method->string_ctor) {
4142 mono_mb_emit_ptr (mb, string_dummy);
4144 mono_mb_emit_ldarg (mb, 0);
4148 tmp_nullable_locals = g_new0 (int, sig->param_count);
4150 for (i = 0; i < sig->param_count; i++) {
4151 MonoType *t = sig->params [i];
4154 mono_mb_emit_ldarg (mb, 1);
4156 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4157 mono_mb_emit_byte (mb, CEE_ADD);
4161 mono_mb_emit_byte (mb, CEE_LDIND_I);
4162 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4163 * So to make this work we unbox it to a local variablee and push a reference to that.
4165 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4166 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4168 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4169 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4170 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4175 type = sig->params [i]->type;
4179 case MONO_TYPE_BOOLEAN:
4183 case MONO_TYPE_CHAR:
4192 mono_mb_emit_byte (mb, CEE_LDIND_I);
4193 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4195 case MONO_TYPE_STRING:
4196 case MONO_TYPE_CLASS:
4197 case MONO_TYPE_ARRAY:
4199 case MONO_TYPE_SZARRAY:
4200 case MONO_TYPE_OBJECT:
4201 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4203 case MONO_TYPE_GENERICINST:
4204 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4205 mono_mb_emit_byte (mb, CEE_LDIND_I);
4210 case MONO_TYPE_VALUETYPE:
4211 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4212 type = mono_class_enum_basetype (t->data.klass)->type;
4215 mono_mb_emit_byte (mb, CEE_LDIND_I);
4216 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4217 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4218 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4219 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4221 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4225 g_assert_not_reached ();
4229 if (need_direct_wrapper) {
4230 mono_mb_emit_op (mb, CEE_CALL, method);
4232 mono_mb_emit_ldarg (mb, 3);
4233 mono_mb_emit_calli (mb, callsig);
4236 if (sig->ret->byref) {
4238 g_assert_not_reached ();
4242 switch (sig->ret->type) {
4243 case MONO_TYPE_VOID:
4244 if (!method->string_ctor)
4245 mono_mb_emit_byte (mb, CEE_LDNULL);
4247 case MONO_TYPE_BOOLEAN:
4248 case MONO_TYPE_CHAR:
4261 case MONO_TYPE_VALUETYPE:
4262 case MONO_TYPE_TYPEDBYREF:
4263 case MONO_TYPE_GENERICINST:
4264 /* box value types */
4265 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4267 case MONO_TYPE_STRING:
4268 case MONO_TYPE_CLASS:
4269 case MONO_TYPE_ARRAY:
4270 case MONO_TYPE_SZARRAY:
4271 case MONO_TYPE_OBJECT:
4276 g_assert_not_reached ();
4279 mono_mb_emit_stloc (mb, 0);
4281 /* Convert back nullable-byref arguments */
4282 for (i = 0; i < sig->param_count; i++) {
4283 MonoType *t = sig->params [i];
4286 * Box the result and put it back into the array, the caller will have
4287 * to obtain it from there.
4289 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4290 mono_mb_emit_ldarg (mb, 1);
4291 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4292 mono_mb_emit_byte (mb, CEE_ADD);
4294 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4295 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4297 mono_mb_emit_byte (mb, CEE_STIND_REF);
4301 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4303 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4304 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4305 clause->try_len = mono_mb_get_label (mb);
4308 clause->data.filter_offset = mono_mb_get_label (mb);
4310 mono_mb_emit_byte (mb, CEE_POP);
4311 mono_mb_emit_byte (mb, CEE_LDARG_2);
4312 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4313 mono_mb_emit_byte (mb, CEE_PREFIX1);
4314 mono_mb_emit_byte (mb, CEE_CGT_UN);
4315 mono_mb_emit_byte (mb, CEE_PREFIX1);
4316 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4318 clause->handler_offset = mono_mb_get_label (mb);
4321 /* store exception */
4322 mono_mb_emit_stloc (mb, 1);
4324 mono_mb_emit_byte (mb, CEE_LDARG_2);
4325 mono_mb_emit_ldloc (mb, 1);
4326 mono_mb_emit_byte (mb, CEE_STIND_REF);
4328 mono_mb_emit_byte (mb, CEE_LDNULL);
4329 mono_mb_emit_stloc (mb, 0);
4331 /* Check for the abort exception */
4332 mono_mb_emit_ldloc (mb, 1);
4333 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4334 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4336 /* Delay the abort exception */
4337 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4339 mono_mb_patch_short_branch (mb, posna);
4340 mono_mb_emit_branch (mb, CEE_LEAVE);
4342 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4344 mono_mb_set_clauses (mb, 1, clause);
4347 mono_mb_patch_branch (mb, pos);
4348 mono_mb_emit_ldloc (mb, 0);
4349 mono_mb_emit_byte (mb, CEE_RET);
4351 if (need_direct_wrapper) {
4352 mb->skip_visibility = 1;
4353 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4355 /* taken from mono_mb_create_and_cache */
4356 mono_marshal_lock ();
4357 res = g_hash_table_lookup (cache, callsig);
4358 mono_marshal_unlock ();
4360 /* Somebody may have created it before us */
4363 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4365 mono_marshal_lock ();
4366 res = g_hash_table_lookup (cache, callsig);
4369 g_hash_table_insert (cache, callsig, res);
4370 /* Can't insert it into wrapper_hash since the key is a signature */
4371 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4373 mono_free_method (newm);
4375 mono_marshal_unlock ();
4378 /* end mono_mb_create_and_cache */
4387 * mono_marshal_get_static_rgctx_invoke:
4390 * Generates a wrapper for calling a generic shared method, either
4391 * static or generic. We need this for virtual generic method lookup
4392 * and ldftn when we do generic code sharing. Instead of producing
4393 * the address of the method we produce the address of a wrapper for
4394 * the method because the wrapper passes the (method) runtime generic
4395 * context argument which calli cannot do.
4398 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
4400 static gboolean inited = FALSE;
4401 static int num_wrappers = 0;
4403 MonoMethodBuilder *mb;
4405 MonoClass *target_klass = method->klass;
4406 MonoMethodSignature *sig = mono_method_signature (method);
4410 MonoImage *image = method->klass->image;
4412 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
4413 if ((res = mono_marshal_find_in_cache (cache, method)))
4417 mono_counters_register ("static rgctx invoke wrappers",
4418 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
4423 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
4424 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
4427 for (i = 0; i < sig->param_count + sig->hasthis; i++)
4428 mono_mb_emit_ldarg (mb, i);
4429 mono_mb_emit_op (mb, CEE_CALL, method);
4430 mono_mb_emit_byte (mb, CEE_RET);
4432 mb->skip_visibility = TRUE;
4433 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
4434 sig->param_count + sig->hasthis + 4);
4435 res->flags = method->flags;
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.
4456 * The return type is ignored for now, as mono_load_remote_field_new () always
4457 * returns an object. In the future, to optimize some codepaths, we might
4458 * call a different function that takes a pointer to a valuetype, instead.
4461 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4463 MonoMethodSignature *sig, *csig;
4464 MonoMethodBuilder *mb;
4466 static MonoMethod* cached = NULL;
4468 mono_marshal_lock ();
4470 mono_marshal_unlock ();
4473 mono_marshal_unlock ();
4475 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4477 mb->method->save_lmf = 1;
4479 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4480 sig->params [0] = &mono_defaults.object_class->byval_arg;
4481 sig->params [1] = &mono_defaults.int_class->byval_arg;
4482 sig->params [2] = &mono_defaults.int_class->byval_arg;
4483 sig->ret = &mono_defaults.object_class->byval_arg;
4485 mono_mb_emit_ldarg (mb, 0);
4486 mono_mb_emit_ldarg (mb, 1);
4487 mono_mb_emit_ldarg (mb, 2);
4489 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4490 csig->params [0] = &mono_defaults.object_class->byval_arg;
4491 csig->params [1] = &mono_defaults.int_class->byval_arg;
4492 csig->params [2] = &mono_defaults.int_class->byval_arg;
4493 csig->ret = &mono_defaults.object_class->byval_arg;
4496 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4497 emit_thread_interrupt_checkpoint (mb);
4499 mono_mb_emit_byte (mb, CEE_RET);
4501 mono_marshal_lock ();
4503 mono_marshal_unlock ();
4506 newm = mono_mb_create_method (mb, sig, 4);
4507 mono_marshal_lock ();
4512 mono_marshal_unlock ();
4514 mono_marshal_unlock ();
4515 mono_free_method (newm);
4524 * mono_marshal_get_ldfld_wrapper:
4525 * @type: the type of the field
4527 * This method generates a function which can be use to load a field with type
4528 * @type from an object. The generated function has the following signature:
4529 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4532 mono_marshal_get_ldfld_wrapper (MonoType *type)
4534 MonoMethodSignature *sig;
4535 MonoMethodBuilder *mb;
4540 int t, pos0, pos1 = 0;
4542 type = mono_type_get_underlying_type (type);
4547 if (type->type == MONO_TYPE_SZARRAY) {
4548 klass = mono_defaults.array_class;
4549 } else if (type->type == MONO_TYPE_VALUETYPE) {
4550 klass = type->data.klass;
4551 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4552 klass = mono_defaults.object_class;
4553 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4554 klass = mono_defaults.int_class;
4555 } else if (t == MONO_TYPE_GENERICINST) {
4556 if (mono_type_generic_inst_is_valuetype (type))
4557 klass = mono_class_from_mono_type (type);
4559 klass = mono_defaults.object_class;
4561 klass = mono_class_from_mono_type (type);
4564 klass = mono_defaults.int_class;
4567 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4568 if ((res = mono_marshal_find_in_cache (cache, klass)))
4571 /* we add the %p pointer value of klass because class names are not unique */
4572 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4573 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4576 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4577 sig->params [0] = &mono_defaults.object_class->byval_arg;
4578 sig->params [1] = &mono_defaults.int_class->byval_arg;
4579 sig->params [2] = &mono_defaults.int_class->byval_arg;
4580 sig->params [3] = &mono_defaults.int_class->byval_arg;
4581 sig->ret = &klass->byval_arg;
4583 mono_mb_emit_ldarg (mb, 0);
4584 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4586 mono_mb_emit_ldarg (mb, 0);
4587 mono_mb_emit_ldarg (mb, 1);
4588 mono_mb_emit_ldarg (mb, 2);
4590 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4593 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4594 csig->params [0] = &mono_defaults.object_class->byval_arg;
4595 csig->params [1] = &mono_defaults.int_class->byval_arg;
4596 csig->params [2] = &mono_defaults.int_class->byval_arg;
4597 csig->ret = &klass->this_arg;
4600 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4601 emit_thread_interrupt_checkpoint (mb);
4604 if (klass->valuetype) {
4605 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4606 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4608 mono_mb_emit_byte (mb, CEE_RET);
4612 mono_mb_patch_branch (mb, pos0);
4614 mono_mb_emit_ldarg (mb, 0);
4615 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4616 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4617 mono_mb_emit_ldarg (mb, 3);
4618 mono_mb_emit_byte (mb, CEE_ADD);
4620 if (klass->valuetype)
4621 mono_mb_patch_branch (mb, pos1);
4626 case MONO_TYPE_BOOLEAN:
4627 case MONO_TYPE_CHAR:
4636 case MONO_TYPE_ARRAY:
4637 case MONO_TYPE_SZARRAY:
4638 case MONO_TYPE_OBJECT:
4639 case MONO_TYPE_CLASS:
4640 case MONO_TYPE_STRING:
4644 case MONO_TYPE_FNPTR:
4645 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4647 case MONO_TYPE_VALUETYPE:
4648 g_assert (!klass->enumtype);
4649 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4651 case MONO_TYPE_GENERICINST:
4652 if (mono_type_generic_inst_is_valuetype (type)) {
4653 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4655 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4659 g_warning ("type %x not implemented", type->type);
4660 g_assert_not_reached ();
4663 mono_mb_emit_byte (mb, CEE_RET);
4665 res = mono_mb_create_and_cache (cache, klass,
4666 mb, sig, sig->param_count + 16);
4673 * mono_marshal_get_ldflda_wrapper:
4674 * @type: the type of the field
4676 * This method generates a function which can be used to load a field address
4677 * from an object. The generated function has the following signature:
4678 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4681 mono_marshal_get_ldflda_wrapper (MonoType *type)
4683 MonoMethodSignature *sig;
4684 MonoMethodBuilder *mb;
4689 int t, pos0, pos1, pos2, pos3;
4691 type = mono_type_get_underlying_type (type);
4695 if (type->type == MONO_TYPE_SZARRAY) {
4696 klass = mono_defaults.array_class;
4697 } else if (type->type == MONO_TYPE_VALUETYPE) {
4698 klass = type->data.klass;
4699 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4700 t == MONO_TYPE_CLASS) {
4701 klass = mono_defaults.object_class;
4702 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4703 klass = mono_defaults.int_class;
4704 } else if (t == MONO_TYPE_GENERICINST) {
4705 if (mono_type_generic_inst_is_valuetype (type))
4706 klass = mono_class_from_mono_type (type);
4708 klass = mono_defaults.object_class;
4710 klass = mono_class_from_mono_type (type);
4713 klass = mono_defaults.int_class;
4716 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4717 if ((res = mono_marshal_find_in_cache (cache, klass)))
4720 /* we add the %p pointer value of klass because class names are not unique */
4721 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4722 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4725 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4726 sig->params [0] = &mono_defaults.object_class->byval_arg;
4727 sig->params [1] = &mono_defaults.int_class->byval_arg;
4728 sig->params [2] = &mono_defaults.int_class->byval_arg;
4729 sig->params [3] = &mono_defaults.int_class->byval_arg;
4730 sig->ret = &mono_defaults.int_class->byval_arg;
4732 /* if typeof (this) != transparent_proxy goto pos0 */
4733 mono_mb_emit_ldarg (mb, 0);
4734 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4736 /* if same_appdomain goto pos1 */
4737 mono_mb_emit_ldarg (mb, 0);
4738 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4740 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4742 /* same app domain */
4743 mono_mb_patch_branch (mb, pos1);
4745 /* if typeof (this) != contextbound goto pos2 */
4746 mono_mb_emit_ldarg (mb, 0);
4747 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4749 /* if this->rp->context == mono_context_get goto pos3 */
4750 mono_mb_emit_ldarg (mb, 0);
4751 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4752 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4753 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4754 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4755 mono_mb_emit_icall (mb, mono_context_get);
4756 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4758 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4760 mono_mb_patch_branch (mb, pos2);
4761 mono_mb_patch_branch (mb, pos3);
4763 /* return the address of the field from this->rp->unwrapped_server */
4764 mono_mb_emit_ldarg (mb, 0);
4765 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4766 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4767 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4768 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4769 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4770 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4771 mono_mb_emit_ldarg (mb, 3);
4772 mono_mb_emit_byte (mb, CEE_ADD);
4773 mono_mb_emit_byte (mb, CEE_RET);
4775 /* not a proxy: return the address of the field directly */
4776 mono_mb_patch_branch (mb, pos0);
4778 mono_mb_emit_ldarg (mb, 0);
4779 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4780 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4781 mono_mb_emit_ldarg (mb, 3);
4782 mono_mb_emit_byte (mb, CEE_ADD);
4784 mono_mb_emit_byte (mb, CEE_RET);
4786 res = mono_mb_create_and_cache (cache, klass,
4787 mb, sig, sig->param_count + 16);
4794 * mono_marshal_get_stfld_remote_wrapper:
4795 * klass: The type of the field
4797 * This function generates a wrapper for calling mono_store_remote_field_new
4798 * with the appropriate signature.
4799 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4800 * klass argument anymore.
4803 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4805 MonoMethodSignature *sig, *csig;
4806 MonoMethodBuilder *mb;
4808 static MonoMethod *cached = NULL;
4810 mono_marshal_lock ();
4812 mono_marshal_unlock ();
4815 mono_marshal_unlock ();
4817 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4819 mb->method->save_lmf = 1;
4821 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4822 sig->params [0] = &mono_defaults.object_class->byval_arg;
4823 sig->params [1] = &mono_defaults.int_class->byval_arg;
4824 sig->params [2] = &mono_defaults.int_class->byval_arg;
4825 sig->params [3] = &mono_defaults.object_class->byval_arg;
4826 sig->ret = &mono_defaults.void_class->byval_arg;
4828 mono_mb_emit_ldarg (mb, 0);
4829 mono_mb_emit_ldarg (mb, 1);
4830 mono_mb_emit_ldarg (mb, 2);
4831 mono_mb_emit_ldarg (mb, 3);
4833 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4834 csig->params [0] = &mono_defaults.object_class->byval_arg;
4835 csig->params [1] = &mono_defaults.int_class->byval_arg;
4836 csig->params [2] = &mono_defaults.int_class->byval_arg;
4837 csig->params [3] = &mono_defaults.object_class->byval_arg;
4838 csig->ret = &mono_defaults.void_class->byval_arg;
4841 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4842 emit_thread_interrupt_checkpoint (mb);
4844 mono_mb_emit_byte (mb, CEE_RET);
4846 mono_marshal_lock ();
4848 mono_marshal_unlock ();
4851 newm = mono_mb_create_method (mb, sig, 6);
4852 mono_marshal_lock ();
4857 mono_marshal_unlock ();
4859 mono_marshal_unlock ();
4860 mono_free_method (newm);
4869 * mono_marshal_get_stfld_wrapper:
4870 * @type: the type of the field
4872 * This method generates a function which can be use to store a field with type
4873 * @type. The generated function has the following signature:
4874 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4877 mono_marshal_get_stfld_wrapper (MonoType *type)
4879 MonoMethodSignature *sig;
4880 MonoMethodBuilder *mb;
4887 type = mono_type_get_underlying_type (type);
4891 if (type->type == MONO_TYPE_SZARRAY) {
4892 klass = mono_defaults.array_class;
4893 } else if (type->type == MONO_TYPE_VALUETYPE) {
4894 klass = type->data.klass;
4895 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4896 klass = mono_defaults.object_class;
4897 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4898 klass = mono_defaults.int_class;
4899 } else if (t == MONO_TYPE_GENERICINST) {
4900 if (mono_type_generic_inst_is_valuetype (type))
4901 klass = mono_class_from_mono_type (type);
4903 klass = mono_defaults.object_class;
4905 klass = mono_class_from_mono_type (type);
4908 klass = mono_defaults.int_class;
4911 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4912 if ((res = mono_marshal_find_in_cache (cache, klass)))
4915 /* we add the %p pointer value of klass because class names are not unique */
4916 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4917 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4920 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4921 sig->params [0] = &mono_defaults.object_class->byval_arg;
4922 sig->params [1] = &mono_defaults.int_class->byval_arg;
4923 sig->params [2] = &mono_defaults.int_class->byval_arg;
4924 sig->params [3] = &mono_defaults.int_class->byval_arg;
4925 sig->params [4] = &klass->byval_arg;
4926 sig->ret = &mono_defaults.void_class->byval_arg;
4928 mono_mb_emit_ldarg (mb, 0);
4929 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4931 mono_mb_emit_ldarg (mb, 0);
4932 mono_mb_emit_ldarg (mb, 1);
4933 mono_mb_emit_ldarg (mb, 2);
4934 mono_mb_emit_ldarg (mb, 4);
4935 if (klass->valuetype)
4936 mono_mb_emit_op (mb, CEE_BOX, klass);
4938 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4940 mono_mb_emit_byte (mb, CEE_RET);
4942 mono_mb_patch_branch (mb, pos);
4944 mono_mb_emit_ldarg (mb, 0);
4945 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4946 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4947 mono_mb_emit_ldarg (mb, 3);
4948 mono_mb_emit_byte (mb, CEE_ADD);
4949 mono_mb_emit_ldarg (mb, 4);
4954 case MONO_TYPE_BOOLEAN:
4955 case MONO_TYPE_CHAR:
4964 case MONO_TYPE_ARRAY:
4965 case MONO_TYPE_SZARRAY:
4966 case MONO_TYPE_OBJECT:
4967 case MONO_TYPE_CLASS:
4968 case MONO_TYPE_STRING:
4972 case MONO_TYPE_FNPTR:
4973 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4975 case MONO_TYPE_VALUETYPE:
4976 g_assert (!klass->enumtype);
4977 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4979 case MONO_TYPE_GENERICINST:
4980 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4983 g_warning ("type %x not implemented", type->type);
4984 g_assert_not_reached ();
4987 mono_mb_emit_byte (mb, CEE_RET);
4989 res = mono_mb_create_and_cache (cache, klass,
4990 mb, sig, sig->param_count + 16);
4997 * generates IL code for the icall wrapper (the generated method
4998 * calls the unmanaged code in func)
5001 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5003 MonoMethodSignature *csig;
5004 MonoMethodBuilder *mb;
5008 g_assert (sig->pinvoke);
5010 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5012 mb->method->save_lmf = 1;
5014 /* we copy the signature, so that we can modify it */
5017 mono_mb_emit_byte (mb, CEE_LDARG_0);
5019 for (i = 0; i < sig->param_count; i++)
5020 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5022 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5023 if (check_exceptions)
5024 emit_thread_interrupt_checkpoint (mb);
5025 mono_mb_emit_byte (mb, CEE_RET);
5027 csig = signature_dup (mono_defaults.corlib, sig);
5029 if (csig->call_convention == MONO_CALL_VARARG)
5030 csig->call_convention = 0;
5032 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5039 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5040 MonoMarshalSpec *spec,
5041 int conv_arg, MonoType **conv_arg_type,
5042 MarshalAction action)
5046 static MonoClass *ICustomMarshaler = NULL;
5047 static MonoMethod *cleanup_native, *cleanup_managed;
5048 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5049 MonoMethod *get_instance;
5050 MonoMethodBuilder *mb = m->mb;
5051 char *exception_msg = NULL;
5055 if (!ICustomMarshaler) {
5056 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5057 g_assert (ICustomMarshaler);
5059 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5060 g_assert (cleanup_native);
5061 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5062 g_assert (cleanup_managed);
5063 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5064 g_assert (marshal_managed_to_native);
5065 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5066 g_assert (marshal_native_to_managed);
5069 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5070 g_assert (mtype != NULL);
5071 mklass = mono_class_from_mono_type (mtype);
5072 g_assert (mklass != NULL);
5074 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5075 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5077 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5079 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5080 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5081 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5082 (get_sig->params [0]->type != MONO_TYPE_STRING))
5083 get_instance = NULL;
5087 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);
5089 /* Throw exception and emit compensation code if neccesary */
5090 if (exception_msg) {
5092 case MARSHAL_ACTION_CONV_IN:
5093 case MARSHAL_ACTION_CONV_RESULT:
5094 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5095 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5096 mono_mb_emit_byte (mb, CEE_POP);
5098 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5099 g_free (exception_msg);
5102 case MARSHAL_ACTION_PUSH:
5103 mono_mb_emit_byte (mb, CEE_LDNULL);
5111 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5112 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5115 case MARSHAL_ACTION_CONV_IN:
5117 case MONO_TYPE_CLASS:
5118 case MONO_TYPE_OBJECT:
5119 case MONO_TYPE_STRING:
5120 case MONO_TYPE_ARRAY:
5121 case MONO_TYPE_SZARRAY:
5122 case MONO_TYPE_VALUETYPE:
5126 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5127 g_assert_not_reached ();
5131 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5133 mono_mb_emit_byte (mb, CEE_LDNULL);
5134 mono_mb_emit_stloc (mb, conv_arg);
5136 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5139 /* Minic MS.NET behavior */
5140 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5143 /* Check for null */
5144 mono_mb_emit_ldarg (mb, argnum);
5146 mono_mb_emit_byte (mb, CEE_LDIND_I);
5147 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5149 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5151 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5153 mono_mb_emit_ldarg (mb, argnum);
5155 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5157 if (t->type == MONO_TYPE_VALUETYPE) {
5159 * Since we can't determine the type of the argument, we
5160 * will assume the unmanaged function takes a pointer.
5162 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5164 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5167 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5168 mono_mb_emit_stloc (mb, conv_arg);
5170 mono_mb_patch_branch (mb, pos2);
5173 case MARSHAL_ACTION_CONV_OUT:
5174 /* Check for null */
5175 mono_mb_emit_ldloc (mb, conv_arg);
5176 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5179 mono_mb_emit_ldarg (mb, argnum);
5181 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5183 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5185 mono_mb_emit_ldloc (mb, conv_arg);
5186 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5187 mono_mb_emit_byte (mb, CEE_STIND_REF);
5188 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5189 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5191 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5193 mono_mb_emit_ldloc (mb, conv_arg);
5194 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5196 /* We have nowhere to store the result */
5197 mono_mb_emit_byte (mb, CEE_POP);
5200 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5202 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5204 mono_mb_emit_ldloc (mb, conv_arg);
5206 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5208 mono_mb_patch_branch (mb, pos2);
5211 case MARSHAL_ACTION_PUSH:
5213 mono_mb_emit_ldloc_addr (mb, conv_arg);
5215 mono_mb_emit_ldloc (mb, conv_arg);
5218 case MARSHAL_ACTION_CONV_RESULT:
5219 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5221 mono_mb_emit_stloc (mb, 3);
5223 mono_mb_emit_ldloc (mb, 3);
5224 mono_mb_emit_stloc (mb, loc1);
5226 /* Check for null */
5227 mono_mb_emit_ldloc (mb, 3);
5228 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5230 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5232 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5233 mono_mb_emit_byte (mb, CEE_DUP);
5235 mono_mb_emit_ldloc (mb, 3);
5236 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5237 mono_mb_emit_stloc (mb, 3);
5239 mono_mb_emit_ldloc (mb, loc1);
5240 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5242 mono_mb_patch_branch (mb, pos2);
5245 case MARSHAL_ACTION_MANAGED_CONV_IN:
5246 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5248 mono_mb_emit_byte (mb, CEE_LDNULL);
5249 mono_mb_emit_stloc (mb, conv_arg);
5251 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5254 /* Check for null */
5255 mono_mb_emit_ldarg (mb, argnum);
5257 mono_mb_emit_byte (mb, CEE_LDIND_I);
5258 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5260 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5261 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5263 mono_mb_emit_ldarg (mb, argnum);
5265 mono_mb_emit_byte (mb, CEE_LDIND_I);
5267 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5268 mono_mb_emit_stloc (mb, conv_arg);
5270 mono_mb_patch_branch (mb, pos2);
5273 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5274 g_assert (!t->byref);
5276 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5278 mono_mb_emit_stloc (mb, 3);
5280 mono_mb_emit_ldloc (mb, 3);
5281 mono_mb_emit_stloc (mb, loc1);
5283 /* Check for null */
5284 mono_mb_emit_ldloc (mb, 3);
5285 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5287 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5288 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5289 mono_mb_emit_byte (mb, CEE_DUP);
5291 mono_mb_emit_ldloc (mb, 3);
5292 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5293 mono_mb_emit_stloc (mb, 3);
5295 mono_mb_emit_ldloc (mb, loc1);
5296 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5298 mono_mb_patch_branch (mb, pos2);
5301 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5303 /* Check for null */
5304 mono_mb_emit_ldloc (mb, conv_arg);
5305 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5308 mono_mb_emit_ldarg (mb, argnum);
5310 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5312 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5314 mono_mb_emit_ldloc (mb, conv_arg);
5315 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5316 mono_mb_emit_byte (mb, CEE_STIND_I);
5319 /* Call CleanUpManagedData */
5320 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5322 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5324 mono_mb_emit_ldloc (mb, conv_arg);
5325 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5327 mono_mb_patch_branch (mb, pos2);
5331 g_assert_not_reached ();
5338 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5339 MonoMarshalSpec *spec,
5340 int conv_arg, MonoType **conv_arg_type,
5341 MarshalAction action)
5343 MonoMethodBuilder *mb = m->mb;
5346 case MARSHAL_ACTION_CONV_IN: {
5347 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5349 g_assert (t->type == MONO_TYPE_OBJECT);
5350 g_assert (!t->byref);
5352 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5353 mono_mb_emit_ldarg (mb, argnum);
5354 mono_mb_emit_icon (mb, encoding);
5355 mono_mb_emit_icon (mb, t->attrs);
5356 mono_mb_emit_icall (mb, mono_marshal_asany);
5357 mono_mb_emit_stloc (mb, conv_arg);
5361 case MARSHAL_ACTION_PUSH:
5362 mono_mb_emit_ldloc (mb, conv_arg);
5365 case MARSHAL_ACTION_CONV_OUT: {
5366 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5368 mono_mb_emit_ldarg (mb, argnum);
5369 mono_mb_emit_ldloc (mb, conv_arg);
5370 mono_mb_emit_icon (mb, encoding);
5371 mono_mb_emit_icon (mb, t->attrs);
5372 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5377 g_assert_not_reached ();
5384 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5385 MonoMarshalSpec *spec,
5386 int conv_arg, MonoType **conv_arg_type,
5387 MarshalAction action)
5389 MonoMethodBuilder *mb = m->mb;
5393 klass = mono_class_from_mono_type (t);
5396 case MARSHAL_ACTION_CONV_IN:
5397 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5398 klass->blittable || klass->enumtype)
5401 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5403 /* store the address of the source into local variable 0 */
5405 mono_mb_emit_ldarg (mb, argnum);
5407 mono_mb_emit_ldarg_addr (mb, argnum);
5409 mono_mb_emit_stloc (mb, 0);
5411 /* allocate space for the native struct and
5412 * store the address into local variable 1 (dest) */
5413 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5414 mono_mb_emit_byte (mb, CEE_PREFIX1);
5415 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5416 mono_mb_emit_stloc (mb, conv_arg);
5419 mono_mb_emit_ldloc (mb, 0);
5420 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5423 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5425 mono_mb_emit_ldloc (mb, conv_arg);
5426 mono_mb_emit_stloc (mb, 1);
5428 /* emit valuetype conversion code */
5429 emit_struct_conv (mb, klass, FALSE);
5433 mono_mb_patch_branch (mb, pos);
5436 case MARSHAL_ACTION_PUSH:
5437 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5439 g_assert (!t->byref);
5441 /* Have to change the signature since the vtype is passed byref */
5442 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5444 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5445 klass->blittable || klass->enumtype)
5446 mono_mb_emit_ldarg_addr (mb, argnum);
5448 mono_mb_emit_ldloc (mb, conv_arg);
5452 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5453 klass->blittable || klass->enumtype) {
5454 mono_mb_emit_ldarg (mb, argnum);
5457 mono_mb_emit_ldloc (mb, conv_arg);
5459 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5460 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5464 case MARSHAL_ACTION_CONV_OUT:
5465 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5466 klass->blittable || klass->enumtype)
5470 /* dst = argument */
5471 mono_mb_emit_ldarg (mb, argnum);
5472 mono_mb_emit_stloc (mb, 1);
5474 mono_mb_emit_ldloc (mb, 1);
5475 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5477 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5478 /* src = tmp_locals [i] */
5479 mono_mb_emit_ldloc (mb, conv_arg);
5480 mono_mb_emit_stloc (mb, 0);
5482 /* emit valuetype conversion code */
5483 emit_struct_conv (mb, klass, TRUE);
5487 emit_struct_free (mb, klass, conv_arg);
5490 mono_mb_patch_branch (mb, pos);
5493 case MARSHAL_ACTION_CONV_RESULT:
5494 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5496 mono_mb_emit_stloc (mb, 3);
5499 /* load pointer to returned value type */
5500 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5501 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5502 /* store the address of the source into local variable 0 */
5503 mono_mb_emit_stloc (mb, 0);
5505 mono_mb_emit_ldloc_addr (mb, 3);
5506 mono_mb_emit_stloc (mb, 1);
5508 /* emit valuetype conversion code */
5509 emit_struct_conv (mb, klass, TRUE);
5512 case MARSHAL_ACTION_MANAGED_CONV_IN:
5513 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5514 klass->blittable || klass->enumtype) {
5519 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5521 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5525 mono_mb_emit_ldarg (mb, argnum);
5527 mono_mb_emit_ldarg_addr (mb, argnum);
5528 mono_mb_emit_stloc (mb, 0);
5531 mono_mb_emit_ldloc (mb, 0);
5532 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5535 mono_mb_emit_ldloc_addr (mb, conv_arg);
5536 mono_mb_emit_stloc (mb, 1);
5538 /* emit valuetype conversion code */
5539 emit_struct_conv (mb, klass, TRUE);
5542 mono_mb_patch_branch (mb, pos);
5545 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5546 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5547 klass->blittable || klass->enumtype) {
5551 /* Check for null */
5552 mono_mb_emit_ldarg (mb, argnum);
5553 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5556 mono_mb_emit_ldloc_addr (mb, conv_arg);
5557 mono_mb_emit_stloc (mb, 0);
5560 mono_mb_emit_ldarg (mb, argnum);
5561 mono_mb_emit_stloc (mb, 1);
5563 /* emit valuetype conversion code */
5564 emit_struct_conv (mb, klass, FALSE);
5566 mono_mb_patch_branch (mb, pos2);
5569 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5570 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5571 klass->blittable || klass->enumtype) {
5572 mono_mb_emit_stloc (mb, 3);
5577 /* load pointer to returned value type */
5578 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5579 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5581 /* store the address of the source into local variable 0 */
5582 mono_mb_emit_stloc (mb, 0);
5583 /* allocate space for the native struct and
5584 * store the address into dst_ptr */
5585 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5586 m->retobj_class = klass;
5587 g_assert (m->retobj_var);
5588 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5589 mono_mb_emit_byte (mb, CEE_CONV_I);
5590 mono_mb_emit_icall (mb, mono_marshal_alloc);
5591 mono_mb_emit_stloc (mb, 1);
5592 mono_mb_emit_ldloc (mb, 1);
5593 mono_mb_emit_stloc (mb, m->retobj_var);
5595 /* emit valuetype conversion code */
5596 emit_struct_conv (mb, klass, FALSE);
5600 g_assert_not_reached ();
5607 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5608 MonoMarshalSpec *spec,
5609 int conv_arg, MonoType **conv_arg_type,
5610 MarshalAction action)
5612 MonoMethodBuilder *mb = m->mb;
5613 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5614 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5618 case MARSHAL_ACTION_CONV_IN:
5619 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5620 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5623 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5626 mono_mb_emit_ldarg (mb, argnum);
5627 mono_mb_emit_byte (mb, CEE_LDIND_I);
5629 mono_mb_emit_ldarg (mb, argnum);
5633 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5634 MonoException *exc = mono_get_exception_not_implemented (msg);
5637 mono_raise_exception (exc);
5640 mono_mb_emit_icall (mb, conv_to_icall (conv));
5642 mono_mb_emit_stloc (mb, conv_arg);
5645 case MARSHAL_ACTION_CONV_OUT:
5646 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5648 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5649 mono_mb_emit_exception_marshal_directive (mb, msg);
5653 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5654 mono_mb_emit_ldarg (mb, argnum);
5655 mono_mb_emit_ldloc (mb, conv_arg);
5656 mono_mb_emit_icall (mb, conv_to_icall (conv));
5657 mono_mb_emit_byte (mb, CEE_STIND_REF);
5660 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5661 mono_mb_emit_ldloc (mb, conv_arg);
5662 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5663 mono_mb_emit_icall (mb, mono_free_bstr);
5665 mono_mb_emit_icall (mb, mono_marshal_free);
5669 case MARSHAL_ACTION_PUSH:
5671 mono_mb_emit_ldloc_addr (mb, conv_arg);
5673 mono_mb_emit_ldloc (mb, conv_arg);
5676 case MARSHAL_ACTION_CONV_RESULT:
5677 mono_mb_emit_stloc (mb, 0);
5679 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5681 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5682 mono_mb_emit_exception_marshal_directive (mb, msg);
5686 mono_mb_emit_ldloc (mb, 0);
5687 mono_mb_emit_icall (mb, conv_to_icall (conv));
5688 mono_mb_emit_stloc (mb, 3);
5690 /* free the string */
5691 mono_mb_emit_ldloc (mb, 0);
5692 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5693 mono_mb_emit_icall (mb, mono_free_bstr);
5695 mono_mb_emit_icall (mb, mono_marshal_free);
5698 case MARSHAL_ACTION_MANAGED_CONV_IN:
5699 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5701 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5703 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5705 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5706 mono_mb_emit_exception_marshal_directive (mb, msg);
5710 mono_mb_emit_ldarg (mb, argnum);
5712 mono_mb_emit_byte (mb, CEE_LDIND_I);
5713 mono_mb_emit_icall (mb, conv_to_icall (conv));
5714 mono_mb_emit_stloc (mb, conv_arg);
5717 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5720 mono_mb_emit_ldarg (mb, argnum);
5721 mono_mb_emit_ldloc (mb, conv_arg);
5722 mono_mb_emit_icall (mb, conv_to_icall (conv));
5723 mono_mb_emit_byte (mb, CEE_STIND_I);
5728 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5729 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5730 /* We need to make a copy so the caller is able to free it */
5731 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5733 mono_mb_emit_icall (mb, conv_to_icall (conv));
5734 mono_mb_emit_stloc (mb, 3);
5738 g_assert_not_reached ();
5745 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5746 MonoMarshalSpec *spec, int conv_arg,
5747 MonoType **conv_arg_type, MarshalAction action)
5749 MonoMethodBuilder *mb = m->mb;
5752 case MARSHAL_ACTION_CONV_IN: {
5753 MonoType *intptr_type;
5754 int dar_release_slot, pos;
5756 intptr_type = &mono_defaults.int_class->byval_arg;
5757 conv_arg = mono_mb_add_local (mb, intptr_type);
5758 *conv_arg_type = intptr_type;
5760 if (!sh_dangerous_add_ref)
5761 init_safe_handle ();
5763 mono_mb_emit_ldarg (mb, argnum);
5764 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5765 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5767 mono_mb_patch_branch (mb, pos);
5770 * My tests in show that ref SafeHandles are not really
5771 * passed as ref objects. Instead a NULL is passed as the
5774 mono_mb_emit_icon (mb, 0);
5775 mono_mb_emit_stloc (mb, conv_arg);
5779 /* Create local to hold the ref parameter to DangerousAddRef */
5780 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5782 /* set release = false; */
5783 mono_mb_emit_icon (mb, 0);
5784 mono_mb_emit_stloc (mb, dar_release_slot);
5786 /* safehandle.DangerousAddRef (ref release) */
5787 mono_mb_emit_ldarg (mb, argnum);
5788 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5789 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5791 /* Pull the handle field from SafeHandle */
5792 mono_mb_emit_ldarg (mb, argnum);
5793 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5794 mono_mb_emit_byte (mb, CEE_LDIND_I);
5795 mono_mb_emit_stloc (mb, conv_arg);
5800 case MARSHAL_ACTION_PUSH:
5802 mono_mb_emit_ldloc_addr (mb, conv_arg);
5804 mono_mb_emit_ldloc (mb, conv_arg);
5807 case MARSHAL_ACTION_CONV_OUT: {
5808 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5809 int dar_release_slot = conv_arg + 1;
5812 if (!sh_dangerous_release)
5813 init_safe_handle ();
5819 * My tests indicate that ref SafeHandles parameters are not actually
5820 * passed by ref, but instead a new Handle is created regardless of
5821 * whether a change happens in the unmanaged side.
5823 * Also, the Handle is created before calling into unmanaged code,
5824 * but we do not support that mechanism (getting to the original
5825 * handle) and it makes no difference where we create this
5827 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5829 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5832 /* refval = new SafeHandleDerived ()*/
5833 mono_mb_emit_ldarg (mb, argnum);
5834 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5835 mono_mb_emit_byte (mb, CEE_STIND_REF);
5837 /* refval.handle = returned_handle */
5838 mono_mb_emit_ldarg (mb, argnum);
5839 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5840 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5841 mono_mb_emit_ldloc (mb, conv_arg);
5842 mono_mb_emit_byte (mb, CEE_STIND_I);
5844 mono_mb_emit_ldloc (mb, dar_release_slot);
5845 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5846 mono_mb_emit_ldarg (mb, argnum);
5847 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5848 mono_mb_patch_branch (mb, label_next);
5853 case MARSHAL_ACTION_CONV_RESULT: {
5854 MonoMethod *ctor = NULL;
5855 int intptr_handle_slot;
5857 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5858 mono_mb_emit_byte (mb, CEE_POP);
5859 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
5863 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5865 mono_mb_emit_byte (mb, CEE_POP);
5866 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5869 /* Store the IntPtr results into a local */
5870 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5871 mono_mb_emit_stloc (mb, intptr_handle_slot);
5873 /* Create return value */
5874 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5875 mono_mb_emit_stloc (mb, 3);
5877 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5878 mono_mb_emit_ldloc (mb, 3);
5879 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5880 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5881 mono_mb_emit_byte (mb, CEE_STIND_I);
5885 case MARSHAL_ACTION_MANAGED_CONV_IN:
5886 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5889 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5890 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5893 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5894 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5897 printf ("Unhandled case for MarshalAction: %d\n", action);
5904 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5905 MonoMarshalSpec *spec, int conv_arg,
5906 MonoType **conv_arg_type, MarshalAction action)
5908 MonoMethodBuilder *mb = m->mb;
5911 case MARSHAL_ACTION_CONV_IN: {
5912 MonoType *intptr_type;
5914 intptr_type = &mono_defaults.int_class->byval_arg;
5915 conv_arg = mono_mb_add_local (mb, intptr_type);
5916 *conv_arg_type = intptr_type;
5919 mono_mb_emit_exception_marshal_directive (mb,
5920 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5923 mono_mb_emit_ldarg_addr (mb, argnum);
5924 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
5925 mono_mb_emit_byte (mb, CEE_ADD);
5926 mono_mb_emit_byte (mb, CEE_LDIND_I);
5927 mono_mb_emit_stloc (mb, conv_arg);
5931 case MARSHAL_ACTION_PUSH:
5932 mono_mb_emit_ldloc (mb, conv_arg);
5935 case MARSHAL_ACTION_CONV_OUT: {
5936 /* no resource release required */
5940 case MARSHAL_ACTION_CONV_RESULT: {
5941 mono_mb_emit_exception_marshal_directive (mb,
5942 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5946 case MARSHAL_ACTION_MANAGED_CONV_IN:
5947 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5950 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5951 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5954 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5955 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5958 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5965 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5966 MonoMarshalSpec *spec,
5967 int conv_arg, MonoType **conv_arg_type,
5968 MarshalAction action)
5970 MonoMethodBuilder *mb = m->mb;
5971 MonoClass *klass = mono_class_from_mono_type (t);
5974 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5975 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
5979 case MARSHAL_ACTION_CONV_IN:
5980 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5981 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5983 m->orig_conv_args [argnum] = 0;
5985 if (klass->delegate) {
5987 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5988 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5989 mono_mb_emit_exception_marshal_directive (mb, msg);
5991 mono_mb_emit_byte (mb, CEE_LDNULL);
5992 mono_mb_emit_stloc (mb, conv_arg);
5994 mono_mb_emit_ldarg (mb, argnum);
5995 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5996 mono_mb_emit_stloc (mb, conv_arg);
5998 } else if (klass == mono_defaults.stringbuilder_class) {
5999 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6000 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6002 g_assert (!t->byref);
6003 mono_mb_emit_ldarg (mb, argnum);
6006 mono_mb_emit_icall (mb, conv_to_icall (conv));
6008 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6009 MonoException *exc = mono_get_exception_not_implemented (msg);
6012 mono_raise_exception (exc);
6015 mono_mb_emit_stloc (mb, conv_arg);
6016 } else if (klass->blittable) {
6017 mono_mb_emit_byte (mb, CEE_LDNULL);
6018 mono_mb_emit_stloc (mb, conv_arg);
6020 mono_mb_emit_ldarg (mb, argnum);
6021 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6023 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6025 mono_mb_emit_stloc (mb, conv_arg);
6027 mono_mb_patch_branch (mb, pos);
6030 mono_mb_emit_byte (mb, CEE_LDNULL);
6031 mono_mb_emit_stloc (mb, conv_arg);
6034 /* we dont need any conversions for out parameters */
6035 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6038 mono_mb_emit_ldarg (mb, argnum);
6039 mono_mb_emit_byte (mb, CEE_LDIND_I);
6042 mono_mb_emit_ldarg (mb, argnum);
6043 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6044 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6047 /* store the address of the source into local variable 0 */
6048 mono_mb_emit_stloc (mb, 0);
6049 mono_mb_emit_ldloc (mb, 0);
6050 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6052 /* allocate space for the native struct and store the address */
6053 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6054 mono_mb_emit_byte (mb, CEE_PREFIX1);
6055 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6056 mono_mb_emit_stloc (mb, conv_arg);
6059 /* Need to store the original buffer so we can free it later */
6060 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6061 mono_mb_emit_ldloc (mb, conv_arg);
6062 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6065 /* set the src_ptr */
6066 mono_mb_emit_ldloc (mb, 0);
6067 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6068 mono_mb_emit_stloc (mb, 0);
6071 mono_mb_emit_ldloc (mb, conv_arg);
6072 mono_mb_emit_stloc (mb, 1);
6074 /* emit valuetype conversion code */
6075 emit_struct_conv (mb, klass, FALSE);
6077 mono_mb_patch_branch (mb, pos);
6081 case MARSHAL_ACTION_CONV_OUT:
6082 if (klass == mono_defaults.stringbuilder_class) {
6084 MonoMarshalNative encoding;
6085 MonoMarshalConv conv;
6087 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6088 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6090 g_assert (!t->byref);
6091 g_assert (encoding != -1);
6093 mono_mb_emit_ldarg (mb, argnum);
6094 mono_mb_emit_ldloc (mb, conv_arg);
6096 mono_mb_emit_icall (mb, conv_to_icall (conv));
6099 mono_mb_emit_ldloc (mb, conv_arg);
6100 mono_mb_emit_icall (mb, mono_marshal_free);
6105 if (klass->delegate) {
6107 mono_mb_emit_ldarg (mb, argnum);
6108 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6109 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6110 mono_mb_emit_ldloc (mb, conv_arg);
6111 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6112 mono_mb_emit_byte (mb, CEE_STIND_REF);
6117 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6118 /* allocate a new object */
6119 mono_mb_emit_ldarg (mb, argnum);
6120 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6121 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6122 mono_mb_emit_byte (mb, CEE_STIND_REF);
6125 /* dst = *argument */
6126 mono_mb_emit_ldarg (mb, argnum);
6129 mono_mb_emit_byte (mb, CEE_LDIND_I);
6131 mono_mb_emit_stloc (mb, 1);
6133 mono_mb_emit_ldloc (mb, 1);
6134 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6136 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6137 mono_mb_emit_ldloc (mb, 1);
6138 mono_mb_emit_icon (mb, sizeof (MonoObject));
6139 mono_mb_emit_byte (mb, CEE_ADD);
6140 mono_mb_emit_stloc (mb, 1);
6142 /* src = tmp_locals [i] */
6143 mono_mb_emit_ldloc (mb, conv_arg);
6144 mono_mb_emit_stloc (mb, 0);
6146 /* emit valuetype conversion code */
6147 emit_struct_conv (mb, klass, TRUE);
6149 /* Free the structure returned by the native code */
6150 emit_struct_free (mb, klass, conv_arg);
6152 if (m->orig_conv_args [argnum]) {
6154 * If the native function changed the pointer, then free
6155 * the original structure plus the new pointer.
6157 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6158 mono_mb_emit_ldloc (mb, conv_arg);
6159 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6161 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6162 g_assert (m->orig_conv_args [argnum]);
6164 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6167 mono_mb_emit_ldloc (mb, conv_arg);
6168 mono_mb_emit_icall (mb, g_free);
6170 mono_mb_patch_branch (mb, pos2);
6174 /* Free the original structure passed to native code */
6175 emit_struct_free (mb, klass, conv_arg);
6177 mono_mb_patch_branch (mb, pos);
6180 case MARSHAL_ACTION_PUSH:
6182 mono_mb_emit_ldloc_addr (mb, conv_arg);
6184 mono_mb_emit_ldloc (mb, conv_arg);
6187 case MARSHAL_ACTION_CONV_RESULT:
6188 if (klass->delegate) {
6189 g_assert (!t->byref);
6190 mono_mb_emit_stloc (mb, 0);
6191 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6192 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6193 mono_mb_emit_ldloc (mb, 0);
6194 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6195 mono_mb_emit_stloc (mb, 3);
6198 mono_mb_emit_stloc (mb, 0);
6200 /* Make a copy since emit_conv modifies local 0 */
6201 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6202 mono_mb_emit_ldloc (mb, 0);
6203 mono_mb_emit_stloc (mb, loc);
6205 mono_mb_emit_byte (mb, CEE_LDNULL);
6206 mono_mb_emit_stloc (mb, 3);
6208 mono_mb_emit_ldloc (mb, 0);
6209 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6211 /* allocate result object */
6213 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6214 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6215 mono_mb_emit_stloc (mb, 3);
6219 mono_mb_emit_ldloc (mb, 3);
6220 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6221 mono_mb_emit_stloc (mb, 1);
6223 /* emit conversion code */
6224 emit_struct_conv (mb, klass, TRUE);
6226 emit_struct_free (mb, klass, loc);
6228 /* Free the pointer allocated by unmanaged code */
6229 mono_mb_emit_ldloc (mb, loc);
6230 mono_mb_emit_icall (mb, g_free);
6231 mono_mb_patch_branch (mb, pos);
6235 case MARSHAL_ACTION_MANAGED_CONV_IN:
6236 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6238 if (klass->delegate) {
6239 g_assert (!t->byref);
6240 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6241 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6242 mono_mb_emit_ldarg (mb, argnum);
6243 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6244 mono_mb_emit_stloc (mb, conv_arg);
6248 if (klass == mono_defaults.stringbuilder_class) {
6249 MonoMarshalNative encoding;
6251 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6254 g_assert (encoding == MONO_NATIVE_LPSTR);
6256 g_assert (!t->byref);
6257 g_assert (encoding != -1);
6259 mono_mb_emit_ldarg (mb, argnum);
6260 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6261 mono_mb_emit_stloc (mb, conv_arg);
6265 /* The class can not have an automatic layout */
6266 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6267 mono_mb_emit_auto_layout_exception (mb, klass);
6271 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6272 mono_mb_emit_byte (mb, CEE_LDNULL);
6273 mono_mb_emit_stloc (mb, conv_arg);
6278 mono_mb_emit_ldarg (mb, argnum);
6282 /* Check for NULL and raise an exception */
6283 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6285 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6287 mono_mb_patch_branch (mb, pos2);
6288 mono_mb_emit_ldarg (mb, argnum);
6289 mono_mb_emit_byte (mb, CEE_LDIND_I);
6292 mono_mb_emit_stloc (mb, 0);
6294 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6295 mono_mb_emit_stloc (mb, conv_arg);
6297 mono_mb_emit_ldloc (mb, 0);
6298 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6300 /* Create and set dst */
6301 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6302 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6303 mono_mb_emit_stloc (mb, conv_arg);
6304 mono_mb_emit_ldloc (mb, conv_arg);
6305 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6306 mono_mb_emit_stloc (mb, 1);
6308 /* emit valuetype conversion code */
6309 emit_struct_conv (mb, klass, TRUE);
6311 mono_mb_patch_branch (mb, pos);
6314 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6316 /* Check for null */
6317 mono_mb_emit_ldloc (mb, conv_arg);
6318 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6319 mono_mb_emit_ldarg (mb, argnum);
6320 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6321 mono_mb_emit_byte (mb, CEE_STIND_REF);
6322 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6324 mono_mb_patch_branch (mb, pos);
6327 mono_mb_emit_ldloc (mb, conv_arg);
6328 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6329 mono_mb_emit_stloc (mb, 0);
6331 /* Allocate and set dest */
6332 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6333 mono_mb_emit_byte (mb, CEE_CONV_I);
6334 mono_mb_emit_icall (mb, mono_marshal_alloc);
6335 mono_mb_emit_stloc (mb, 1);
6337 /* Update argument pointer */
6338 mono_mb_emit_ldarg (mb, argnum);
6339 mono_mb_emit_ldloc (mb, 1);
6340 mono_mb_emit_byte (mb, CEE_STIND_I);
6342 /* emit valuetype conversion code */
6343 emit_struct_conv (mb, klass, FALSE);
6345 mono_mb_patch_branch (mb, pos2);
6347 /* byval [Out] marshalling */
6349 /* FIXME: Handle null */
6352 mono_mb_emit_ldloc (mb, conv_arg);
6353 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6354 mono_mb_emit_stloc (mb, 0);
6357 mono_mb_emit_ldarg (mb, argnum);
6358 mono_mb_emit_stloc (mb, 1);
6360 /* emit valuetype conversion code */
6361 emit_struct_conv (mb, klass, FALSE);
6365 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6366 if (klass->delegate) {
6367 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6368 mono_mb_emit_stloc (mb, 3);
6372 /* The class can not have an automatic layout */
6373 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6374 mono_mb_emit_auto_layout_exception (mb, klass);
6378 mono_mb_emit_stloc (mb, 0);
6379 /* Check for null */
6380 mono_mb_emit_ldloc (mb, 0);
6381 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6382 mono_mb_emit_byte (mb, CEE_LDNULL);
6383 mono_mb_emit_stloc (mb, 3);
6384 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6386 mono_mb_patch_branch (mb, pos);
6389 mono_mb_emit_ldloc (mb, 0);
6390 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6391 mono_mb_emit_stloc (mb, 0);
6393 /* Allocate and set dest */
6394 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6395 mono_mb_emit_byte (mb, CEE_CONV_I);
6396 mono_mb_emit_icall (mb, mono_marshal_alloc);
6397 mono_mb_emit_byte (mb, CEE_DUP);
6398 mono_mb_emit_stloc (mb, 1);
6399 mono_mb_emit_stloc (mb, 3);
6401 emit_struct_conv (mb, klass, FALSE);
6403 mono_mb_patch_branch (mb, pos2);
6407 g_assert_not_reached ();
6414 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6415 MonoMarshalSpec *spec,
6416 int conv_arg, MonoType **conv_arg_type,
6417 MarshalAction action)
6419 MonoMethodBuilder *mb = m->mb;
6420 static MonoMethod *get_object_for_native_variant = NULL;
6421 static MonoMethod *get_native_variant_for_object = NULL;
6423 mono_init_com_types ();
6425 if (!get_object_for_native_variant)
6426 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6427 g_assert (get_object_for_native_variant);
6429 if (!get_native_variant_for_object)
6430 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6431 g_assert (get_native_variant_for_object);
6434 case MARSHAL_ACTION_CONV_IN: {
6435 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6438 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6440 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6442 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6445 mono_mb_emit_ldarg (mb, argnum);
6447 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6448 mono_mb_emit_ldloc_addr (mb, conv_arg);
6449 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6453 case MARSHAL_ACTION_CONV_OUT: {
6454 static MonoMethod *variant_clear = NULL;
6457 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6458 g_assert (variant_clear);
6461 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6462 mono_mb_emit_ldarg (mb, argnum);
6463 mono_mb_emit_ldloc_addr (mb, conv_arg);
6464 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6465 mono_mb_emit_byte (mb, CEE_STIND_REF);
6468 mono_mb_emit_ldloc_addr (mb, conv_arg);
6469 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6473 case MARSHAL_ACTION_PUSH:
6475 mono_mb_emit_ldloc_addr (mb, conv_arg);
6477 mono_mb_emit_ldloc (mb, conv_arg);
6480 case MARSHAL_ACTION_CONV_RESULT: {
6481 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6482 mono_mb_emit_exception_marshal_directive (mb, msg);
6486 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6487 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6490 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6492 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6494 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6498 mono_mb_emit_ldarg (mb, argnum);
6500 mono_mb_emit_ldarg_addr (mb, argnum);
6501 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6502 mono_mb_emit_stloc (mb, conv_arg);
6506 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6507 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6508 mono_mb_emit_ldloc (mb, conv_arg);
6509 mono_mb_emit_ldarg (mb, argnum);
6510 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6515 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6516 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6517 mono_mb_emit_exception_marshal_directive (mb, msg);
6522 g_assert_not_reached ();
6529 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6530 MonoMarshalSpec *spec,
6531 int conv_arg, MonoType **conv_arg_type,
6532 MarshalAction action)
6534 MonoMethodBuilder *mb = m->mb;
6535 MonoClass *klass = mono_class_from_mono_type (t);
6536 gboolean need_convert, need_free;
6537 MonoMarshalNative encoding;
6539 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6542 case MARSHAL_ACTION_CONV_IN:
6543 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6544 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6546 if (klass->element_class->blittable) {
6547 mono_mb_emit_ldarg (mb, argnum);
6549 mono_mb_emit_byte (mb, CEE_LDIND_I);
6550 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6551 mono_mb_emit_stloc (mb, conv_arg);
6554 guint32 label1, label2, label3;
6555 int index_var, src_var, dest_ptr, esize;
6556 MonoMarshalConv conv;
6557 gboolean is_string = FALSE;
6559 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6561 eklass = klass->element_class;
6563 if (eklass == mono_defaults.string_class) {
6565 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6567 else if (eklass == mono_defaults.stringbuilder_class) {
6569 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6574 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6575 mono_mb_emit_ldarg (mb, argnum);
6577 mono_mb_emit_byte (mb, CEE_LDIND_I);
6578 mono_mb_emit_stloc (mb, src_var);
6581 mono_mb_emit_ldloc (mb, src_var);
6582 mono_mb_emit_stloc (mb, conv_arg);
6583 mono_mb_emit_ldloc (mb, src_var);
6584 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6588 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6589 MonoException *exc = mono_get_exception_not_implemented (msg);
6592 mono_raise_exception (exc);
6597 esize = sizeof (gpointer);
6599 esize = mono_class_native_size (eklass, NULL);
6601 /* allocate space for the native struct and store the address */
6602 mono_mb_emit_icon (mb, esize);
6603 mono_mb_emit_ldloc (mb, src_var);
6604 mono_mb_emit_byte (mb, CEE_LDLEN);
6606 if (eklass == mono_defaults.string_class) {
6607 /* Make the array bigger for the terminating null */
6608 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6609 mono_mb_emit_byte (mb, CEE_ADD);
6611 mono_mb_emit_byte (mb, CEE_MUL);
6612 mono_mb_emit_byte (mb, CEE_PREFIX1);
6613 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6614 mono_mb_emit_stloc (mb, conv_arg);
6616 mono_mb_emit_ldloc (mb, conv_arg);
6617 mono_mb_emit_stloc (mb, dest_ptr);
6619 /* Emit marshalling loop */
6620 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6621 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6622 mono_mb_emit_stloc (mb, index_var);
6623 label2 = mono_mb_get_label (mb);
6624 mono_mb_emit_ldloc (mb, index_var);
6625 mono_mb_emit_ldloc (mb, src_var);
6626 mono_mb_emit_byte (mb, CEE_LDLEN);
6627 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6629 /* Emit marshalling code */
6632 mono_mb_emit_ldloc (mb, dest_ptr);
6633 mono_mb_emit_ldloc (mb, src_var);
6634 mono_mb_emit_ldloc (mb, index_var);
6635 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6636 mono_mb_emit_icall (mb, conv_to_icall (conv));
6637 mono_mb_emit_byte (mb, CEE_STIND_I);
6639 /* set the src_ptr */
6640 mono_mb_emit_ldloc (mb, src_var);
6641 mono_mb_emit_ldloc (mb, index_var);
6642 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6643 mono_mb_emit_stloc (mb, 0);
6646 mono_mb_emit_ldloc (mb, dest_ptr);
6647 mono_mb_emit_stloc (mb, 1);
6649 /* emit valuetype conversion code */
6650 emit_struct_conv (mb, eklass, FALSE);
6653 mono_mb_emit_add_to_local (mb, index_var, 1);
6654 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6656 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6658 mono_mb_patch_branch (mb, label3);
6660 if (eklass == mono_defaults.string_class) {
6661 /* Null terminate */
6662 mono_mb_emit_ldloc (mb, dest_ptr);
6663 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6664 mono_mb_emit_byte (mb, CEE_STIND_REF);
6667 mono_mb_patch_branch (mb, label1);
6672 case MARSHAL_ACTION_CONV_OUT:
6673 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6674 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);
6675 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6678 if (need_convert || need_free) {
6679 /* FIXME: Optimize blittable case */
6681 guint32 label1, label2, label3;
6682 int index_var, src_ptr, loc, esize;
6684 eklass = klass->element_class;
6685 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6686 esize = sizeof (gpointer);
6688 esize = mono_class_native_size (eklass, NULL);
6689 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6690 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6693 mono_mb_emit_ldarg (mb, argnum);
6695 mono_mb_emit_byte (mb, CEE_LDIND_I);
6696 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6698 mono_mb_emit_ldloc (mb, conv_arg);
6699 mono_mb_emit_stloc (mb, src_ptr);
6701 /* Emit marshalling loop */
6702 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6703 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6704 mono_mb_emit_stloc (mb, index_var);
6705 label2 = mono_mb_get_label (mb);
6706 mono_mb_emit_ldloc (mb, index_var);
6707 mono_mb_emit_ldarg (mb, argnum);
6709 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6710 mono_mb_emit_byte (mb, CEE_LDLEN);
6711 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6713 /* Emit marshalling code */
6715 if (eklass == mono_defaults.stringbuilder_class) {
6716 gboolean need_free2;
6717 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6719 g_assert (conv != -1);
6722 mono_mb_emit_ldarg (mb, argnum);
6724 mono_mb_emit_byte (mb, CEE_LDIND_I);
6725 mono_mb_emit_ldloc (mb, index_var);
6726 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6729 mono_mb_emit_ldloc (mb, src_ptr);
6730 mono_mb_emit_byte (mb, CEE_LDIND_I);
6732 mono_mb_emit_icall (mb, conv_to_icall (conv));
6736 mono_mb_emit_ldloc (mb, src_ptr);
6737 mono_mb_emit_byte (mb, CEE_LDIND_I);
6739 mono_mb_emit_icall (mb, mono_marshal_free);
6742 else if (eklass == mono_defaults.string_class) {
6745 mono_mb_emit_ldloc (mb, src_ptr);
6746 mono_mb_emit_byte (mb, CEE_LDIND_I);
6748 mono_mb_emit_icall (mb, mono_marshal_free);
6753 /* set the src_ptr */
6754 mono_mb_emit_ldloc (mb, src_ptr);
6755 mono_mb_emit_stloc (mb, 0);
6758 mono_mb_emit_ldarg (mb, argnum);
6760 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6761 mono_mb_emit_ldloc (mb, index_var);
6762 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6763 mono_mb_emit_stloc (mb, 1);
6765 /* emit valuetype conversion code */
6766 emit_struct_conv (mb, eklass, TRUE);
6770 mono_mb_emit_ldloc (mb, src_ptr);
6771 mono_mb_emit_stloc (mb, loc);
6772 mono_mb_emit_ldloc (mb, loc);
6774 emit_struct_free (mb, eklass, loc);
6778 mono_mb_emit_add_to_local (mb, index_var, 1);
6779 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6781 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6783 mono_mb_patch_branch (mb, label1);
6784 mono_mb_patch_branch (mb, label3);
6788 case MARSHAL_ACTION_PUSH:
6790 mono_mb_emit_ldloc_addr (mb, conv_arg);
6792 mono_mb_emit_ldloc (mb, conv_arg);
6795 case MARSHAL_ACTION_CONV_RESULT:
6796 /* fixme: we need conversions here */
6797 mono_mb_emit_stloc (mb, 3);
6800 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6802 guint32 label1, label2, label3;
6803 int index_var, src_ptr, loc, esize, param_num, num_elem;
6804 MonoMarshalConv conv;
6805 gboolean is_string = FALSE;
6807 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6808 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6811 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6812 mono_mb_emit_exception_marshal_directive (mb, msg);
6816 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6817 mono_mb_emit_exception_marshal_directive (mb, msg);
6820 if (spec->native != MONO_NATIVE_LPARRAY) {
6821 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6822 mono_mb_emit_exception_marshal_directive (mb, msg);
6826 /* FIXME: t is from the method which is wrapped, not the delegate type */
6827 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6829 param_num = spec->data.array_data.param_num;
6830 num_elem = spec->data.array_data.num_elem;
6831 if (spec->data.array_data.elem_mult == 0)
6832 /* param_num is not specified */
6835 if (param_num == -1) {
6836 if (num_elem <= 0) {
6837 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6838 mono_mb_emit_exception_marshal_directive (mb, msg);
6843 /* FIXME: Optimize blittable case */
6845 eklass = klass->element_class;
6846 if (eklass == mono_defaults.string_class) {
6848 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6850 else if (eklass == mono_defaults.stringbuilder_class) {
6852 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6857 mono_marshal_load_type_info (eklass);
6860 esize = sizeof (gpointer);
6862 esize = mono_class_native_size (eklass, NULL);
6863 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6864 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6866 mono_mb_emit_byte (mb, CEE_LDNULL);
6867 mono_mb_emit_stloc (mb, conv_arg);
6869 /* Check param index */
6870 if (param_num != -1) {
6871 if (param_num >= m->sig->param_count) {
6872 char *msg = g_strdup ("Array size control parameter index is out of range.");
6873 mono_mb_emit_exception_marshal_directive (mb, msg);
6876 switch (m->sig->params [param_num]->type) {
6889 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6890 mono_mb_emit_exception_marshal_directive (mb, msg);
6897 mono_mb_emit_ldarg (mb, argnum);
6898 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6900 mono_mb_emit_ldarg (mb, argnum);
6901 mono_mb_emit_stloc (mb, src_ptr);
6903 /* Create managed array */
6905 * The LPArray marshalling spec says that sometimes param_num starts
6906 * from 1, sometimes it starts from 0. But MS seems to allways start
6910 if (param_num == -1)
6911 mono_mb_emit_icon (mb, num_elem);
6913 /* FIXME: Add the two together */
6914 mono_mb_emit_ldarg (mb, param_num);
6916 mono_mb_emit_icon (mb, num_elem);
6917 mono_mb_emit_byte (mb, CEE_ADD);
6921 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6922 mono_mb_emit_stloc (mb, conv_arg);
6924 if (eklass->blittable) {
6925 mono_mb_emit_ldloc (mb, conv_arg);
6926 mono_mb_emit_byte (mb, CEE_CONV_I);
6927 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6928 mono_mb_emit_byte (mb, CEE_ADD);
6929 mono_mb_emit_ldarg (mb, argnum);
6930 mono_mb_emit_ldloc (mb, conv_arg);
6931 mono_mb_emit_byte (mb, CEE_LDLEN);
6932 mono_mb_emit_icon (mb, esize);
6933 mono_mb_emit_byte (mb, CEE_MUL);
6934 mono_mb_emit_byte (mb, CEE_PREFIX1);
6935 mono_mb_emit_byte (mb, CEE_CPBLK);
6939 /* Emit marshalling loop */
6940 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6941 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6942 mono_mb_emit_stloc (mb, index_var);
6943 label2 = mono_mb_get_label (mb);
6944 mono_mb_emit_ldloc (mb, index_var);
6945 mono_mb_emit_ldloc (mb, conv_arg);
6946 mono_mb_emit_byte (mb, CEE_LDLEN);
6947 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6949 /* Emit marshalling code */
6951 g_assert (conv != -1);
6953 mono_mb_emit_ldloc (mb, conv_arg);
6954 mono_mb_emit_ldloc (mb, index_var);
6956 mono_mb_emit_ldloc (mb, src_ptr);
6957 mono_mb_emit_byte (mb, CEE_LDIND_I);
6959 mono_mb_emit_icall (mb, conv_to_icall (conv));
6960 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6963 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6964 mono_mb_emit_exception_marshal_directive (mb, msg);
6968 mono_mb_emit_add_to_local (mb, index_var, 1);
6969 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6971 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6973 mono_mb_patch_branch (mb, label1);
6974 mono_mb_patch_branch (mb, label3);
6978 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6980 guint32 label1, label2, label3;
6981 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6982 MonoMarshalConv conv;
6983 gboolean is_string = FALSE;
6986 /* Already handled in CONV_IN */
6989 /* These are already checked in CONV_IN */
6990 g_assert (!t->byref);
6991 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6992 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6994 param_num = spec->data.array_data.param_num;
6995 num_elem = spec->data.array_data.num_elem;
6997 if (spec->data.array_data.elem_mult == 0)
6998 /* param_num is not specified */
7001 if (param_num == -1) {
7002 if (num_elem <= 0) {
7003 g_assert_not_reached ();
7007 /* FIXME: Optimize blittable case */
7009 eklass = klass->element_class;
7010 if (eklass == mono_defaults.string_class) {
7012 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7014 else if (eklass == mono_defaults.stringbuilder_class) {
7016 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7021 mono_marshal_load_type_info (eklass);
7024 esize = sizeof (gpointer);
7026 esize = mono_class_native_size (eklass, NULL);
7028 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7029 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7032 mono_mb_emit_ldloc (mb, conv_arg);
7033 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7035 mono_mb_emit_ldarg (mb, argnum);
7036 mono_mb_emit_stloc (mb, dest_ptr);
7038 if (eklass->blittable) {
7040 mono_mb_emit_ldarg (mb, argnum);
7042 mono_mb_emit_ldloc (mb, conv_arg);
7043 mono_mb_emit_byte (mb, CEE_CONV_I);
7044 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7045 mono_mb_emit_byte (mb, CEE_ADD);
7047 mono_mb_emit_ldloc (mb, conv_arg);
7048 mono_mb_emit_byte (mb, CEE_LDLEN);
7049 mono_mb_emit_icon (mb, esize);
7050 mono_mb_emit_byte (mb, CEE_MUL);
7051 mono_mb_emit_byte (mb, CEE_PREFIX1);
7052 mono_mb_emit_byte (mb, CEE_CPBLK);
7056 /* Emit marshalling loop */
7057 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7058 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7059 mono_mb_emit_stloc (mb, index_var);
7060 label2 = mono_mb_get_label (mb);
7061 mono_mb_emit_ldloc (mb, index_var);
7062 mono_mb_emit_ldloc (mb, conv_arg);
7063 mono_mb_emit_byte (mb, CEE_LDLEN);
7064 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7066 /* Emit marshalling code */
7068 g_assert (conv != -1);
7071 mono_mb_emit_ldloc (mb, dest_ptr);
7074 mono_mb_emit_ldloc (mb, conv_arg);
7075 mono_mb_emit_ldloc (mb, index_var);
7077 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7079 mono_mb_emit_icall (mb, conv_to_icall (conv));
7080 mono_mb_emit_byte (mb, CEE_STIND_I);
7083 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7084 mono_mb_emit_exception_marshal_directive (mb, msg);
7088 mono_mb_emit_add_to_local (mb, index_var, 1);
7089 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7091 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7093 mono_mb_patch_branch (mb, label1);
7094 mono_mb_patch_branch (mb, label3);
7098 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7100 guint32 label1, label2, label3;
7101 int index_var, src, dest, esize;
7102 MonoMarshalConv conv = -1;
7103 gboolean is_string = FALSE;
7105 g_assert (!t->byref);
7107 eklass = klass->element_class;
7109 mono_marshal_load_type_info (eklass);
7111 if (eklass == mono_defaults.string_class) {
7113 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7116 g_assert_not_reached ();
7120 esize = sizeof (gpointer);
7122 esize = mono_class_native_size (eklass, NULL);
7124 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7125 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7127 mono_mb_emit_stloc (mb, src);
7128 mono_mb_emit_ldloc (mb, src);
7129 mono_mb_emit_stloc (mb, 3);
7131 /* Check for null */
7132 mono_mb_emit_ldloc (mb, src);
7133 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7135 /* Allocate native array */
7136 mono_mb_emit_icon (mb, esize);
7137 mono_mb_emit_ldloc (mb, src);
7138 mono_mb_emit_byte (mb, CEE_LDLEN);
7140 if (eklass == mono_defaults.string_class) {
7141 /* Make the array bigger for the terminating null */
7142 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7143 mono_mb_emit_byte (mb, CEE_ADD);
7145 mono_mb_emit_byte (mb, CEE_MUL);
7146 mono_mb_emit_icall (mb, mono_marshal_alloc);
7147 mono_mb_emit_stloc (mb, dest);
7148 mono_mb_emit_ldloc (mb, dest);
7149 mono_mb_emit_stloc (mb, 3);
7151 /* Emit marshalling loop */
7152 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7153 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7154 mono_mb_emit_stloc (mb, index_var);
7155 label2 = mono_mb_get_label (mb);
7156 mono_mb_emit_ldloc (mb, index_var);
7157 mono_mb_emit_ldloc (mb, src);
7158 mono_mb_emit_byte (mb, CEE_LDLEN);
7159 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7161 /* Emit marshalling code */
7163 g_assert (conv != -1);
7166 mono_mb_emit_ldloc (mb, dest);
7169 mono_mb_emit_ldloc (mb, src);
7170 mono_mb_emit_ldloc (mb, index_var);
7172 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7174 mono_mb_emit_icall (mb, conv_to_icall (conv));
7175 mono_mb_emit_byte (mb, CEE_STIND_I);
7178 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7179 mono_mb_emit_exception_marshal_directive (mb, msg);
7183 mono_mb_emit_add_to_local (mb, index_var, 1);
7184 mono_mb_emit_add_to_local (mb, dest, esize);
7186 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7188 mono_mb_patch_branch (mb, label3);
7189 mono_mb_patch_branch (mb, label1);
7193 g_assert_not_reached ();
7200 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7201 MonoMarshalSpec *spec,
7202 int conv_arg, MonoType **conv_arg_type,
7203 MarshalAction action)
7205 MonoMethodBuilder *mb = m->mb;
7208 case MARSHAL_ACTION_CONV_IN: {
7209 MonoType *local_type;
7210 int variant_bool = 0;
7214 local_type = &mono_defaults.int32_class->byval_arg;
7216 switch (spec->native) {
7217 case MONO_NATIVE_I1:
7218 case MONO_NATIVE_U1:
7219 local_type = &mono_defaults.byte_class->byval_arg;
7221 case MONO_NATIVE_VARIANTBOOL:
7222 local_type = &mono_defaults.int16_class->byval_arg;
7226 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7227 local_type = &mono_defaults.int32_class->byval_arg;
7231 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7232 conv_arg = mono_mb_add_local (mb, local_type);
7233 mono_mb_emit_ldarg (mb, argnum);
7234 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7236 mono_mb_emit_byte (mb, CEE_NEG);
7237 mono_mb_emit_stloc (mb, conv_arg);
7241 case MARSHAL_ACTION_CONV_OUT:
7244 mono_mb_emit_ldarg (mb, argnum);
7245 mono_mb_emit_ldloc (mb, conv_arg);
7246 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
7247 mono_mb_emit_byte (mb, CEE_NEG);
7248 mono_mb_emit_byte (mb, CEE_STIND_I1);
7251 case MARSHAL_ACTION_PUSH:
7253 mono_mb_emit_ldloc_addr (mb, conv_arg);
7255 mono_mb_emit_ldarg (mb, argnum);
7258 case MARSHAL_ACTION_CONV_RESULT:
7259 /* maybe we need to make sure that it fits within 8 bits */
7260 mono_mb_emit_stloc (mb, 3);
7263 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7264 gint variant_bool = 0;
7265 guint8 ldop = CEE_LDIND_I4;
7269 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7271 *conv_arg_type = &mono_defaults.int32_class->byval_arg;
7274 switch (spec->native) {
7275 case MONO_NATIVE_I1:
7276 case MONO_NATIVE_U1:
7277 *conv_arg_type = &mono_defaults.byte_class->this_arg;
7278 ldop = CEE_LDIND_I1;
7280 case MONO_NATIVE_VARIANTBOOL:
7281 *conv_arg_type = &mono_defaults.int16_class->this_arg;
7283 ldop = CEE_LDIND_I2;
7285 case MONO_NATIVE_BOOLEAN:
7288 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7292 mono_mb_emit_ldarg (mb, argnum);
7293 mono_mb_emit_byte (mb, ldop);
7296 mono_mb_emit_byte (mb, CEE_NEG);
7297 mono_mb_emit_stloc (mb, conv_arg);
7301 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7302 guint8 stop = CEE_STIND_I4;
7306 switch (spec->native) {
7307 case MONO_NATIVE_I1:
7308 case MONO_NATIVE_U1:
7309 stop = CEE_STIND_I1;
7311 case MONO_NATIVE_VARIANTBOOL:
7312 stop = CEE_STIND_I2;
7319 mono_mb_emit_ldarg (mb, argnum);
7320 mono_mb_emit_ldloc (mb, conv_arg);
7321 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
7322 mono_mb_emit_byte (mb, CEE_NEG);
7323 mono_mb_emit_byte (mb, stop);
7328 g_assert_not_reached ();
7335 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7336 MonoMarshalSpec *spec, int conv_arg,
7337 MonoType **conv_arg_type, MarshalAction action)
7339 MonoMethodBuilder *mb = m->mb;
7342 case MARSHAL_ACTION_CONV_IN:
7343 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7344 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7345 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7349 case MARSHAL_ACTION_PUSH:
7350 mono_mb_emit_ldarg (mb, argnum);
7353 case MARSHAL_ACTION_CONV_RESULT:
7354 /* no conversions necessary */
7355 mono_mb_emit_stloc (mb, 3);
7366 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7367 MonoMarshalSpec *spec, int conv_arg,
7368 MonoType **conv_arg_type, MarshalAction action)
7370 MonoMethodBuilder *mb = m->mb;
7373 case MARSHAL_ACTION_PUSH:
7374 /* fixme: dont know how to marshal that. We cant simply
7375 * convert it to a one byte UTF8 character, because an
7376 * unicode character may need more that one byte in UTF8 */
7377 mono_mb_emit_ldarg (mb, argnum);
7380 case MARSHAL_ACTION_CONV_RESULT:
7381 /* fixme: we need conversions here */
7382 mono_mb_emit_stloc (mb, 3);
7393 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7394 MonoMarshalSpec *spec, int conv_arg,
7395 MonoType **conv_arg_type, MarshalAction action)
7397 MonoMethodBuilder *mb = m->mb;
7400 case MARSHAL_ACTION_PUSH:
7401 mono_mb_emit_ldarg (mb, argnum);
7404 case MARSHAL_ACTION_CONV_RESULT:
7405 /* no conversions necessary */
7406 mono_mb_emit_stloc (mb, 3);
7417 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7418 MonoMarshalSpec *spec, int conv_arg,
7419 MonoType **conv_arg_type, MarshalAction action)
7421 /* Ensure that we have marshalling info for this param */
7422 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7424 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7425 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7427 if (spec && spec->native == MONO_NATIVE_ASANY)
7428 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7431 case MONO_TYPE_VALUETYPE:
7432 if (t->data.klass == mono_defaults.handleref_class)
7433 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7435 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7436 case MONO_TYPE_STRING:
7437 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7438 case MONO_TYPE_CLASS:
7439 case MONO_TYPE_OBJECT:
7440 if (spec && spec->native == MONO_NATIVE_STRUCT)
7441 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7444 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7445 spec->native == MONO_NATIVE_IDISPATCH ||
7446 spec->native == MONO_NATIVE_INTERFACE))
7447 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7450 if (mono_defaults.safehandle_class != NULL &&
7451 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7452 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7454 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7455 case MONO_TYPE_ARRAY:
7456 case MONO_TYPE_SZARRAY:
7457 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7458 case MONO_TYPE_BOOLEAN:
7459 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7461 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7462 case MONO_TYPE_CHAR:
7463 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7476 case MONO_TYPE_FNPTR:
7477 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7478 case MONO_TYPE_GENERICINST:
7479 if (mono_type_generic_inst_is_valuetype (t))
7480 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7482 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7489 * mono_marshal_emit_native_wrapper:
7490 * @image: the image to use for looking up custom marshallers
7491 * @sig: The signature of the native function
7492 * @piinfo: Marshalling information
7493 * @mspecs: Marshalling information
7494 * @aot: whenever the created method will be compiled by the AOT compiler
7495 * @method: if non-NULL, the pinvoke method to call
7496 * @check_exceptions: Whenever to check for pending exceptions after the native call
7498 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7501 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7503 EmitMarshalContext m;
7504 MonoMethodSignature *csig;
7506 int i, argnum, *tmp_locals;
7508 static MonoMethodSignature *get_last_error_sig = NULL;
7513 /* we copy the signature, so that we can set pinvoke to 0 */
7514 csig = signature_dup (mb->method->klass->image, sig);
7519 /* we allocate local for use with emit_struct_conv() */
7520 /* allocate local 0 (pointer) src_ptr */
7521 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7522 /* allocate local 1 (pointer) dst_ptr */
7523 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7524 /* allocate local 2 (boolean) delete_old */
7525 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7527 /* delete_old = FALSE */
7528 mono_mb_emit_icon (mb, 0);
7529 mono_mb_emit_stloc (mb, 2);
7531 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7532 /* allocate local 3 to store the return value */
7533 mono_mb_add_local (mb, sig->ret);
7536 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7537 /* Return type custom marshaling */
7539 * Since we can't determine the return type of the unmanaged function,
7540 * we assume it returns a pointer, and pass that pointer to
7541 * MarshalNativeToManaged.
7543 csig->ret = &mono_defaults.int_class->byval_arg;
7546 /* we first do all conversions */
7547 tmp_locals = alloca (sizeof (int) * sig->param_count);
7548 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7550 for (i = 0; i < sig->param_count; i ++) {
7551 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7554 /* push all arguments */
7557 mono_mb_emit_byte (mb, CEE_LDARG_0);
7559 for (i = 0; i < sig->param_count; i++) {
7560 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7563 /* call the native method */
7564 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7566 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7568 g_assert_not_reached ();
7573 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7574 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7575 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7576 mono_mb_emit_calli (mb, csig);
7578 mono_mb_emit_native_call (mb, csig, func);
7582 /* Set LastError if needed */
7583 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7584 if (!get_last_error_sig) {
7585 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7586 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7587 get_last_error_sig->pinvoke = 1;
7590 #ifdef PLATFORM_WIN32
7592 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7593 * clobber its value.
7595 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7596 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7598 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7602 /* convert the result */
7603 if (!sig->ret->byref) {
7604 MonoMarshalSpec *spec = mspecs [0];
7605 type = sig->ret->type;
7607 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7608 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7613 case MONO_TYPE_VOID:
7615 case MONO_TYPE_VALUETYPE:
7616 klass = sig->ret->data.klass;
7617 if (klass->enumtype) {
7618 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7621 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7635 case MONO_TYPE_FNPTR:
7636 case MONO_TYPE_STRING:
7637 case MONO_TYPE_CLASS:
7638 case MONO_TYPE_OBJECT:
7639 case MONO_TYPE_BOOLEAN:
7640 case MONO_TYPE_ARRAY:
7641 case MONO_TYPE_SZARRAY:
7642 case MONO_TYPE_CHAR:
7644 case MONO_TYPE_GENERICINST:
7645 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7647 case MONO_TYPE_TYPEDBYREF:
7649 g_warning ("return type 0x%02x unknown", sig->ret->type);
7650 g_assert_not_reached ();
7654 mono_mb_emit_stloc (mb, 3);
7658 * Need to call this after converting the result since MONO_VTADDR needs
7659 * to be adjacent to the call instruction.
7661 if (check_exceptions)
7662 emit_thread_interrupt_checkpoint (mb);
7664 /* we need to convert byref arguments back and free string arrays */
7665 for (i = 0; i < sig->param_count; i++) {
7666 MonoType *t = sig->params [i];
7667 MonoMarshalSpec *spec = mspecs [i + 1];
7669 argnum = i + sig->hasthis;
7671 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7672 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7677 case MONO_TYPE_STRING:
7678 case MONO_TYPE_VALUETYPE:
7679 case MONO_TYPE_CLASS:
7680 case MONO_TYPE_OBJECT:
7681 case MONO_TYPE_SZARRAY:
7682 case MONO_TYPE_BOOLEAN:
7683 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7688 if (!MONO_TYPE_IS_VOID(sig->ret))
7689 mono_mb_emit_ldloc (mb, 3);
7691 mono_mb_emit_byte (mb, CEE_RET);
7695 * mono_marshal_get_native_wrapper:
7696 * @method: The MonoMethod to wrap.
7697 * @check_exceptions: Whenever to check for pending exceptions
7699 * generates IL code for the pinvoke wrapper (the generated method
7700 * calls the unmanaged code in piinfo->addr)
7703 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7705 MonoMethodSignature *sig, *csig;
7706 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7707 MonoMethodBuilder *mb;
7708 MonoMarshalSpec **mspecs;
7711 gboolean pinvoke = FALSE;
7714 const char *exc_class = "MissingMethodException";
7715 const char *exc_arg = NULL;
7717 g_assert (method != NULL);
7718 g_assert (mono_method_signature (method)->pinvoke);
7721 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7723 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7724 if ((res = mono_marshal_find_in_cache (cache, method)))
7727 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7729 return mono_cominterop_get_native_wrapper (method);
7731 g_assert_not_reached ();
7735 sig = mono_method_signature (method);
7737 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7738 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7741 if (!piinfo->addr) {
7743 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7744 exc_arg = "Method contains unsupported native code";
7746 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7748 piinfo->addr = mono_lookup_internal_call (method);
7751 /* hack - redirect certain string constructors to CreateString */
7752 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7753 g_assert (!pinvoke);
7754 g_assert (method->string_ctor);
7755 g_assert (sig->hasthis);
7757 /* CreateString returns a value */
7758 csig = signature_dup (method->klass->image, sig);
7759 csig->ret = &mono_defaults.string_class->byval_arg;
7763 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7764 if (!strcmp ("CreateString", res->name) &&
7765 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7767 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7768 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7770 /* create a wrapper to preserve .ctor in stack trace */
7771 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7773 mono_mb_emit_byte (mb, CEE_LDARG_0);
7774 for (i = 1; i <= csig->param_count; i++)
7775 mono_mb_emit_ldarg (mb, i);
7776 mono_mb_emit_managed_call (mb, res, NULL);
7777 mono_mb_emit_byte (mb, CEE_RET);
7779 /* use native_wrapper_cache because internal calls are looked up there */
7780 res = mono_mb_create_and_cache (cache, method,
7781 mb, csig, csig->param_count + 1);
7789 /* exception will be thrown */
7790 piinfo->addr = NULL;
7791 g_warning ("cannot find CreateString for .ctor");
7794 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7796 mb->method->save_lmf = 1;
7799 * In AOT mode and embedding scenarios, it is possible that the icall is not
7800 * registered in the runtime doing the AOT compilation.
7802 if (!piinfo->addr && !aot) {
7803 mono_mb_emit_exception (mb, exc_class, exc_arg);
7804 csig = signature_dup (method->klass->image, sig);
7806 res = mono_mb_create_and_cache (cache, method,
7807 mb, csig, csig->param_count + 16);
7812 /* internal calls: we simply push all arguments and call the method (no conversions) */
7813 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7815 /* hack - string constructors returns a value */
7816 if (method->string_ctor) {
7817 csig = signature_dup (method->klass->image, sig);
7818 csig->ret = &mono_defaults.string_class->byval_arg;
7823 mono_mb_emit_byte (mb, CEE_LDARG_0);
7825 for (i = 0; i < sig->param_count; i++)
7826 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7829 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7830 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7831 mono_mb_emit_calli (mb, csig);
7833 g_assert (piinfo->addr);
7834 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7836 if (check_exceptions)
7837 emit_thread_interrupt_checkpoint (mb);
7838 mono_mb_emit_byte (mb, CEE_RET);
7840 csig = signature_dup (method->klass->image, csig);
7842 res = mono_mb_create_and_cache (cache, method,
7843 mb, csig, csig->param_count + 16);
7850 g_assert (piinfo->addr);
7852 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7853 mono_method_get_marshal_info (method, mspecs);
7855 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
7857 csig = signature_dup (method->klass->image, sig);
7859 res = mono_mb_create_and_cache (cache, method,
7860 mb, csig, csig->param_count + 16);
7863 for (i = sig->param_count; i >= 0; i--)
7865 mono_metadata_free_marshal_spec (mspecs [i]);
7868 /* 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)); */
7874 * mono_marshal_get_native_func_wrapper:
7875 * @image: The image to use for memory allocation and for looking up custom marshallers.
7876 * @sig: The signature of the function
7877 * @func: The native function to wrap
7879 * Returns a wrapper method around native functions, similar to the pinvoke
7883 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7884 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7886 MonoMethodSignature *csig;
7888 MonoMethodBuilder *mb;
7893 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7894 if ((res = mono_marshal_find_in_cache (cache, func)))
7897 name = g_strdup_printf ("wrapper_native_%p", func);
7898 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7899 mb->method->save_lmf = 1;
7901 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
7903 csig = signature_dup (image, sig);
7905 res = mono_mb_create_and_cache (cache, func,
7906 mb, csig, csig->param_count + 16);
7909 /* 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)); */
7914 /* FIXME: moving GC */
7916 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
7918 MonoMethodSignature *sig, *csig;
7924 /* allocate local 0 (pointer) src_ptr */
7925 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7926 /* allocate local 1 (pointer) dst_ptr */
7927 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7928 /* allocate local 2 (boolean) delete_old */
7929 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7931 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7932 /* allocate local 3 to store the return value */
7933 mono_mb_add_local (mb, sig->ret);
7936 mono_mb_emit_icon (mb, 0);
7937 mono_mb_emit_stloc (mb, 2);
7939 /* we first do all conversions */
7940 tmp_locals = alloca (sizeof (int) * sig->param_count);
7941 for (i = 0; i < sig->param_count; i ++) {
7942 MonoType *t = sig->params [i];
7945 case MONO_TYPE_OBJECT:
7946 case MONO_TYPE_CLASS:
7947 case MONO_TYPE_VALUETYPE:
7948 case MONO_TYPE_ARRAY:
7949 case MONO_TYPE_SZARRAY:
7950 case MONO_TYPE_STRING:
7951 case MONO_TYPE_BOOLEAN:
7952 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7961 emit_thread_interrupt_checkpoint (mb);
7963 /* fixme: howto handle this ? */
7966 /* FIXME: need a solution for the moving GC here */
7967 mono_mb_emit_ptr (mb, this);
7970 g_assert_not_reached ();
7974 for (i = 0; i < sig->param_count; i++) {
7975 MonoType *t = sig->params [i];
7977 if (tmp_locals [i]) {
7979 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7981 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7984 mono_mb_emit_ldarg (mb, i);
7987 mono_mb_emit_managed_call (mb, method, NULL);
7989 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7990 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7993 if (!sig->ret->byref) {
7994 switch (sig->ret->type) {
7995 case MONO_TYPE_VOID:
7997 case MONO_TYPE_BOOLEAN:
8000 case MONO_TYPE_CHAR:
8012 case MONO_TYPE_OBJECT:
8013 mono_mb_emit_stloc (mb, 3);
8015 case MONO_TYPE_STRING:
8016 csig->ret = &mono_defaults.int_class->byval_arg;
8017 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8019 case MONO_TYPE_VALUETYPE:
8020 case MONO_TYPE_CLASS:
8021 case MONO_TYPE_SZARRAY:
8022 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8025 g_warning ("return type 0x%02x unknown", sig->ret->type);
8026 g_assert_not_reached ();
8029 mono_mb_emit_stloc (mb, 3);
8032 /* Convert byref arguments back */
8033 for (i = 0; i < sig->param_count; i ++) {
8034 MonoType *t = sig->params [i];
8035 MonoMarshalSpec *spec = mspecs [i + 1];
8037 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8038 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8040 else if (t->byref) {
8042 case MONO_TYPE_CLASS:
8043 case MONO_TYPE_VALUETYPE:
8044 case MONO_TYPE_OBJECT:
8045 case MONO_TYPE_STRING:
8046 case MONO_TYPE_BOOLEAN:
8047 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8051 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8052 /* The [Out] information is encoded in the delegate signature */
8054 case MONO_TYPE_SZARRAY:
8055 case MONO_TYPE_CLASS:
8056 case MONO_TYPE_VALUETYPE:
8057 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8060 g_assert_not_reached ();
8065 if (m->retobj_var) {
8066 mono_mb_emit_ldloc (mb, m->retobj_var);
8067 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8068 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8071 if (!MONO_TYPE_IS_VOID(sig->ret))
8072 mono_mb_emit_ldloc (mb, 3);
8073 mono_mb_emit_byte (mb, CEE_RET);
8079 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8081 MonoMethodSignature *sig;
8084 #ifdef PLATFORM_WIN32
8086 * Under windows, delegates passed to native code must use the STDCALL
8087 * calling convention.
8089 csig->call_convention = MONO_CALL_STDCALL;
8092 sig = mono_method_signature (method);
8094 /* Change default calling convention if needed */
8095 /* Why is this a modopt ? */
8096 if (sig->ret && sig->ret->num_mods) {
8097 for (i = 0; i < sig->ret->num_mods; ++i) {
8098 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8099 g_assert (cmod_class);
8100 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8101 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8102 csig->call_convention = MONO_CALL_C;
8103 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8104 csig->call_convention = MONO_CALL_STDCALL;
8105 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8106 csig->call_convention = MONO_CALL_FASTCALL;
8107 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8108 csig->call_convention = MONO_CALL_THISCALL;
8115 * generates IL code to call managed methods from unmanaged code
8118 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8120 static MonoClass *UnmanagedFunctionPointerAttribute;
8121 MonoMethodSignature *sig, *csig, *invoke_sig;
8122 MonoMethodBuilder *mb;
8123 MonoMethod *res, *invoke;
8124 MonoMarshalSpec **mspecs;
8125 MonoMethodPInvoke piinfo;
8128 EmitMarshalContext m;
8130 g_assert (method != NULL);
8131 g_assert (!mono_method_signature (method)->pinvoke);
8134 * FIXME: Should cache the method+delegate type pair, since the same method
8135 * could be called with different delegates, thus different marshalling
8138 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8139 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
8142 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
8143 invoke_sig = mono_method_signature (invoke);
8145 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8146 mono_method_get_marshal_info (invoke, mspecs);
8148 sig = mono_method_signature (method);
8150 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8153 /* we copy the signature, so that we can modify it */
8155 /* Need to free this later */
8156 csig = mono_metadata_signature_dup (sig);
8158 csig = signature_dup (method->klass->image, sig);
8167 m.image = method->klass->image;
8169 mono_marshal_set_callconv_from_modopt (invoke, csig);
8171 /* Handle the UnmanagedFunctionPointerAttribute */
8172 if (!UnmanagedFunctionPointerAttribute)
8173 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8175 /* The attribute is only available in Net 2.0 */
8176 if (UnmanagedFunctionPointerAttribute) {
8177 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8178 MonoCustomAttrInfo *cinfo;
8181 * The pinvoke attributes are stored in a real custom attribute so we have to
8184 cinfo = mono_custom_attrs_from_class (delegate_klass);
8186 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8188 memset (&piinfo, 0, sizeof (piinfo));
8190 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8192 csig->call_convention = attr->call_conv - 1;
8195 mono_custom_attrs_free (cinfo);
8199 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
8202 res = mono_mb_create_and_cache (cache, method,
8203 mb, csig, sig->param_count + 16);
8206 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8210 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8212 mono_metadata_free_marshal_spec (mspecs [i]);
8215 /* 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)); */
8221 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8224 MonoMethodSignature *sig;
8225 MonoMethodBuilder *mb;
8230 method = mono_get_method (image, token, NULL);
8233 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8234 MonoMethodSignature *csig;
8235 MonoMarshalSpec **mspecs;
8236 EmitMarshalContext m;
8238 sig = mono_method_signature (method);
8239 g_assert (!sig->hasthis);
8241 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8242 mono_method_get_marshal_info (method, mspecs);
8244 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8245 csig = signature_dup (image, sig);
8256 mono_marshal_set_callconv_from_modopt (method, csig);
8258 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8260 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8263 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8266 for (i = sig->param_count; i >= 0; i--)
8268 mono_metadata_free_marshal_spec (mspecs [i]);
8271 return mono_compile_method (method);
8274 sig = mono_method_signature (method);
8275 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8277 param_count = sig->param_count + sig->hasthis;
8278 for (i = 0; i < param_count; i++)
8279 mono_mb_emit_ldarg (mb, i);
8281 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8282 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8284 mono_mb_emit_op (mb, CEE_CALL, method);
8285 mono_mb_emit_byte (mb, CEE_RET);
8288 method = mono_mb_create_method (mb, sig, param_count);
8291 return mono_compile_method (method);
8294 static MonoReflectionType *
8295 type_from_handle (MonoType *handle)
8297 MonoDomain *domain = mono_domain_get ();
8298 MonoClass *klass = mono_class_from_mono_type (handle);
8300 MONO_ARCH_SAVE_REGS;
8302 mono_class_init (klass);
8303 return mono_type_get_object (domain, handle);
8307 * mono_marshal_get_isinst:
8308 * @klass: the type of the field
8310 * This method generates a function which can be used to check if an object is
8311 * an instance of the given type, icluding the case where the object is a proxy.
8312 * The generated function has the following signature:
8313 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8316 mono_marshal_get_isinst (MonoClass *klass)
8318 static MonoMethodSignature *isint_sig = NULL;
8321 int pos_was_ok, pos_failed, pos_end, pos_end2;
8323 MonoMethodBuilder *mb;
8325 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8326 if ((res = mono_marshal_find_in_cache (cache, klass)))
8330 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8331 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8332 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8333 isint_sig->pinvoke = 0;
8336 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8337 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8340 mb->method->save_lmf = 1;
8342 /* check if the object is a proxy that needs special cast */
8343 mono_mb_emit_ldarg (mb, 0);
8344 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8345 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8347 /* The result of MONO_ISINST can be:
8348 0) the type check succeeded
8349 1) the type check did not succeed
8350 2) a CanCastTo call is needed */
8352 mono_mb_emit_byte (mb, CEE_DUP);
8353 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8355 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8356 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8358 /* get the real proxy from the transparent proxy*/
8360 mono_mb_emit_ldarg (mb, 0);
8361 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8362 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8366 mono_mb_patch_branch (mb, pos_failed);
8367 mono_mb_emit_byte (mb, CEE_LDNULL);
8368 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8372 mono_mb_patch_branch (mb, pos_was_ok);
8373 mono_mb_emit_byte (mb, CEE_POP);
8374 mono_mb_emit_ldarg (mb, 0);
8378 mono_mb_patch_branch (mb, pos_end);
8379 mono_mb_patch_branch (mb, pos_end2);
8380 mono_mb_emit_byte (mb, CEE_RET);
8382 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8389 * mono_marshal_get_castclass:
8390 * @klass: the type of the field
8392 * This method generates a function which can be used to cast an object to
8393 * an instance of the given type, icluding the case where the object is a proxy.
8394 * The generated function has the following signature:
8395 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8398 mono_marshal_get_castclass (MonoClass *klass)
8400 static MonoMethodSignature *castclass_sig = NULL;
8403 int pos_was_ok, pos_was_ok2;
8405 MonoMethodBuilder *mb;
8407 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8408 if ((res = mono_marshal_find_in_cache (cache, klass)))
8411 if (!castclass_sig) {
8412 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8413 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8414 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8415 castclass_sig->pinvoke = 0;
8418 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8419 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8422 mb->method->save_lmf = 1;
8424 /* check if the object is a proxy that needs special cast */
8425 mono_mb_emit_ldarg (mb, 0);
8426 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8427 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8429 /* The result of MONO_ISINST can be:
8430 0) the cast is valid
8431 1) cast of unknown proxy type
8432 or an exception if the cast is is invalid
8435 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8437 /* get the real proxy from the transparent proxy*/
8439 mono_mb_emit_ldarg (mb, 0);
8440 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8441 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8444 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8447 mono_mb_patch_branch (mb, pos_was_ok);
8448 mono_mb_patch_branch (mb, pos_was_ok2);
8449 mono_mb_emit_ldarg (mb, 0);
8452 mono_mb_emit_byte (mb, CEE_RET);
8454 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8461 mono_marshal_get_proxy_cancast (MonoClass *klass)
8463 static MonoMethodSignature *isint_sig = NULL;
8466 int pos_failed, pos_end;
8468 MonoMethod *can_cast_to;
8469 MonoMethodDesc *desc;
8470 MonoMethodBuilder *mb;
8472 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8473 if ((res = mono_marshal_find_in_cache (cache, klass)))
8477 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8478 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8479 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8480 isint_sig->pinvoke = 0;
8483 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8484 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8487 mb->method->save_lmf = 1;
8489 /* get the real proxy from the transparent proxy*/
8490 mono_mb_emit_ldarg (mb, 0);
8491 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8492 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8494 /* get the reflection type from the type handle */
8495 mono_mb_emit_ptr (mb, &klass->byval_arg);
8496 mono_mb_emit_icall (mb, type_from_handle);
8498 mono_mb_emit_ldarg (mb, 0);
8500 /* make the call to CanCastTo (type, ob) */
8501 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8502 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8503 g_assert (can_cast_to);
8504 mono_method_desc_free (desc);
8505 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8507 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8509 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8510 mono_mb_emit_ptr (mb, &klass->byval_arg);
8511 mono_mb_emit_icall (mb, type_from_handle);
8512 mono_mb_emit_ldarg (mb, 0);
8514 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8515 emit_thread_interrupt_checkpoint (mb);
8517 mono_mb_emit_ldarg (mb, 0);
8518 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8522 mono_mb_patch_branch (mb, pos_failed);
8523 mono_mb_emit_byte (mb, CEE_LDNULL);
8527 mono_mb_patch_branch (mb, pos_end);
8528 mono_mb_emit_byte (mb, CEE_RET);
8530 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8537 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8540 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8541 klass = mono_class_from_mono_type (rtype->type);
8542 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8546 * mono_marshal_get_struct_to_ptr:
8549 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8552 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8554 MonoMethodBuilder *mb;
8555 static MonoMethod *stoptr = NULL;
8558 g_assert (klass != NULL);
8560 mono_marshal_load_type_info (klass);
8562 if (klass->marshal_info->str_to_ptr)
8563 return klass->marshal_info->str_to_ptr;
8566 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8569 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8571 if (klass->blittable) {
8572 mono_mb_emit_byte (mb, CEE_LDARG_1);
8573 mono_mb_emit_byte (mb, CEE_LDARG_0);
8574 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8575 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8576 mono_mb_emit_byte (mb, CEE_PREFIX1);
8577 mono_mb_emit_byte (mb, CEE_CPBLK);
8580 /* allocate local 0 (pointer) src_ptr */
8581 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8582 /* allocate local 1 (pointer) dst_ptr */
8583 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8584 /* allocate local 2 (boolean) delete_old */
8585 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8586 mono_mb_emit_byte (mb, CEE_LDARG_2);
8587 mono_mb_emit_stloc (mb, 2);
8589 /* initialize src_ptr to point to the start of object data */
8590 mono_mb_emit_byte (mb, CEE_LDARG_0);
8591 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8592 mono_mb_emit_stloc (mb, 0);
8594 /* initialize dst_ptr */
8595 mono_mb_emit_byte (mb, CEE_LDARG_1);
8596 mono_mb_emit_stloc (mb, 1);
8598 emit_struct_conv (mb, klass, FALSE);
8601 mono_mb_emit_byte (mb, CEE_RET);
8603 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
8606 klass->marshal_info->str_to_ptr = res;
8611 * mono_marshal_get_ptr_to_struct:
8614 * generates IL code for PtrToStructure (IntPtr src, object structure)
8617 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8619 MonoMethodBuilder *mb;
8620 static MonoMethodSignature *ptostr = NULL;
8623 g_assert (klass != NULL);
8625 mono_marshal_load_type_info (klass);
8627 if (klass->marshal_info->ptr_to_str)
8628 return klass->marshal_info->ptr_to_str;
8631 MonoMethodSignature *sig;
8633 /* Create the signature corresponding to
8634 static void PtrToStructure (IntPtr ptr, object structure);
8635 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8636 sig = mono_create_icall_signature ("void ptr object");
8637 sig = signature_dup (mono_defaults.corlib, sig);
8639 mono_memory_barrier ();
8643 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8645 if (klass->blittable) {
8646 mono_mb_emit_byte (mb, CEE_LDARG_1);
8647 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8648 mono_mb_emit_byte (mb, CEE_LDARG_0);
8649 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8650 mono_mb_emit_byte (mb, CEE_PREFIX1);
8651 mono_mb_emit_byte (mb, CEE_CPBLK);
8654 /* allocate local 0 (pointer) src_ptr */
8655 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8656 /* allocate local 1 (pointer) dst_ptr */
8657 mono_mb_add_local (mb, &klass->this_arg);
8659 /* initialize src_ptr to point to the start of object data */
8660 mono_mb_emit_byte (mb, CEE_LDARG_0);
8661 mono_mb_emit_stloc (mb, 0);
8663 /* initialize dst_ptr */
8664 mono_mb_emit_byte (mb, CEE_LDARG_1);
8665 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8666 mono_mb_emit_stloc (mb, 1);
8668 emit_struct_conv (mb, klass, TRUE);
8671 mono_mb_emit_byte (mb, CEE_RET);
8673 res = mono_mb_create_method (mb, ptostr, 0);
8676 klass->marshal_info->ptr_to_str = res;
8681 * generates IL code for the synchronized wrapper: the generated method
8682 * calls METHOD while locking 'this' or the parent type.
8685 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8687 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8688 MonoMethodSignature *sig;
8689 MonoExceptionClause *clause;
8690 MonoMethodBuilder *mb;
8693 int i, pos, this_local, ret_local = 0;
8697 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8700 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8701 if ((res = mono_marshal_find_in_cache (cache, method)))
8704 sig = signature_dup (method->klass->image, mono_method_signature (method));
8707 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8710 if (!MONO_TYPE_IS_VOID (sig->ret))
8711 ret_local = mono_mb_add_local (mb, sig->ret);
8713 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8714 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8715 /* This will throw the type load exception when the wrapper is compiled */
8716 mono_mb_emit_byte (mb, CEE_LDNULL);
8717 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8718 mono_mb_emit_byte (mb, CEE_POP);
8720 if (!MONO_TYPE_IS_VOID (sig->ret))
8721 mono_mb_emit_ldloc (mb, ret_local);
8722 mono_mb_emit_byte (mb, CEE_RET);
8724 res = mono_mb_create_and_cache (cache, method,
8725 mb, sig, sig->param_count + 16);
8732 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8734 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8735 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8737 mono_loader_lock ();
8739 if (!enter_method) {
8740 MonoMethodDesc *desc;
8742 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8743 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8744 g_assert (enter_method);
8745 mono_method_desc_free (desc);
8747 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8748 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8749 g_assert (exit_method);
8750 mono_method_desc_free (desc);
8752 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8753 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
8754 g_assert (gettypefromhandle_method);
8755 mono_method_desc_free (desc);
8758 mono_loader_unlock ();
8760 /* Push this or the type object */
8761 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8762 /* We have special handling for this in the JIT */
8763 int index = mono_mb_add_data (mb, method->klass);
8764 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8765 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8766 mono_mb_emit_i4 (mb, index);
8768 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8771 mono_mb_emit_ldarg (mb, 0);
8772 mono_mb_emit_stloc (mb, this_local);
8774 /* Call Monitor::Enter() */
8775 mono_mb_emit_ldloc (mb, this_local);
8776 mono_mb_emit_managed_call (mb, enter_method, NULL);
8778 clause->try_offset = mono_mb_get_label (mb);
8780 /* Call the method */
8782 mono_mb_emit_ldarg (mb, 0);
8783 for (i = 0; i < sig->param_count; i++)
8784 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8786 mono_mb_emit_managed_call (mb, method, NULL);
8788 if (!MONO_TYPE_IS_VOID (sig->ret))
8789 mono_mb_emit_stloc (mb, ret_local);
8791 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8793 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8794 clause->handler_offset = mono_mb_get_label (mb);
8796 /* Call Monitor::Exit() */
8797 mono_mb_emit_ldloc (mb, this_local);
8798 mono_mb_emit_managed_call (mb, exit_method, NULL);
8799 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8801 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8803 mono_mb_patch_branch (mb, pos);
8804 if (!MONO_TYPE_IS_VOID (sig->ret))
8805 mono_mb_emit_ldloc (mb, ret_local);
8806 mono_mb_emit_byte (mb, CEE_RET);
8808 mono_mb_set_clauses (mb, 1, clause);
8810 res = mono_mb_create_and_cache (cache, method,
8811 mb, sig, sig->param_count + 16);
8819 * the returned method calls 'method' unboxing the this argument
8822 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8824 MonoMethodSignature *sig = mono_method_signature (method);
8826 MonoMethodBuilder *mb;
8830 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8831 if ((res = mono_marshal_find_in_cache (cache, method)))
8834 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8836 g_assert (sig->hasthis);
8838 mono_mb_emit_ldarg (mb, 0);
8839 mono_mb_emit_icon (mb, sizeof (MonoObject));
8840 mono_mb_emit_byte (mb, CEE_ADD);
8841 for (i = 0; i < sig->param_count; ++i)
8842 mono_mb_emit_ldarg (mb, i + 1);
8843 mono_mb_emit_managed_call (mb, method, NULL);
8844 mono_mb_emit_byte (mb, CEE_RET);
8846 res = mono_mb_create_and_cache (cache, method,
8847 mb, sig, sig->param_count + 16);
8850 /* 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)); */
8856 mono_marshal_get_stelemref ()
8858 static MonoMethod* ret = NULL;
8859 MonoMethodSignature *sig;
8860 MonoMethodBuilder *mb;
8862 guint32 b1, b2, b3, b4;
8865 int array_slot_addr;
8870 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8873 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8875 /* void stelemref (void* array, int idx, void* value) */
8876 sig->ret = &mono_defaults.void_class->byval_arg;
8877 sig->params [0] = &mono_defaults.object_class->byval_arg;
8878 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8879 sig->params [2] = &mono_defaults.object_class->byval_arg;
8881 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8882 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8883 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8887 <ldelema (bound check)>
8891 aklass = array->vtable->klass->element_class;
8892 vklass = value->vtable->klass;
8894 if (vklass->idepth < aklass->idepth)
8897 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8901 *array_slot_addr = value;
8905 if (mono_object_isinst (value, aklass))
8908 throw new ArrayTypeMismatchException ();
8911 /* ldelema (implicit bound check) */
8912 mono_mb_emit_ldarg (mb, 0);
8913 mono_mb_emit_ldarg (mb, 1);
8914 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8915 mono_mb_emit_stloc (mb, array_slot_addr);
8917 /* if (!value) goto do_store */
8918 mono_mb_emit_ldarg (mb, 2);
8919 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8921 /* aklass = array->vtable->klass->element_class */
8922 mono_mb_emit_ldarg (mb, 0);
8923 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8924 mono_mb_emit_byte (mb, CEE_LDIND_I);
8925 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8926 mono_mb_emit_byte (mb, CEE_LDIND_I);
8927 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8928 mono_mb_emit_byte (mb, CEE_LDIND_I);
8929 mono_mb_emit_stloc (mb, aklass);
8931 /* vklass = value->vtable->klass */
8932 mono_mb_emit_ldarg (mb, 2);
8933 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8934 mono_mb_emit_byte (mb, CEE_LDIND_I);
8935 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8936 mono_mb_emit_byte (mb, CEE_LDIND_I);
8937 mono_mb_emit_stloc (mb, vklass);
8939 /* if (vklass->idepth < aklass->idepth) goto failue */
8940 mono_mb_emit_ldloc (mb, vklass);
8941 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8942 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8944 mono_mb_emit_ldloc (mb, aklass);
8945 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8946 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8948 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8950 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8951 mono_mb_emit_ldloc (mb, vklass);
8952 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8953 mono_mb_emit_byte (mb, CEE_LDIND_I);
8955 mono_mb_emit_ldloc (mb, aklass);
8956 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8957 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8958 mono_mb_emit_icon (mb, 1);
8959 mono_mb_emit_byte (mb, CEE_SUB);
8960 mono_mb_emit_icon (mb, sizeof (void*));
8961 mono_mb_emit_byte (mb, CEE_MUL);
8962 mono_mb_emit_byte (mb, CEE_ADD);
8963 mono_mb_emit_byte (mb, CEE_LDIND_I);
8965 mono_mb_emit_ldloc (mb, aklass);
8967 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8969 copy_pos = mono_mb_get_label (mb);
8971 mono_mb_patch_branch (mb, b1);
8972 mono_mb_emit_ldloc (mb, array_slot_addr);
8973 mono_mb_emit_ldarg (mb, 2);
8974 mono_mb_emit_byte (mb, CEE_STIND_REF);
8976 mono_mb_emit_byte (mb, CEE_RET);
8979 mono_mb_patch_branch (mb, b2);
8980 mono_mb_patch_branch (mb, b3);
8982 mono_mb_emit_ldarg (mb, 2);
8983 mono_mb_emit_ldloc (mb, aklass);
8984 mono_mb_emit_icall (mb, mono_object_isinst);
8986 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8987 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8988 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8990 mono_mb_emit_byte (mb, CEE_RET);
8991 ret = mono_mb_create_method (mb, sig, 4);
9002 /* LOCKING: vars accessed under the marshal lock */
9003 static ArrayElemAddr *elem_addr_cache = NULL;
9004 static int elem_addr_cache_size = 0;
9005 static int elem_addr_cache_next = 0;
9008 * mono_marshal_get_array_address:
9009 * @rank: rank of the array type
9010 * @elem_size: size in bytes of an element of an array.
9012 * Returns a MonoMethd that implements the code to get the address
9013 * of an element in a multi-dimenasional array of @rank dimensions.
9014 * The returned method takes an array as the first argument and then
9015 * @rank indexes for the @rank dimensions.
9018 mono_marshal_get_array_address (int rank, int elem_size)
9021 MonoMethodBuilder *mb;
9022 MonoMethodSignature *sig;
9023 int i, bounds, ind, realidx;
9024 int branch_pos, *branch_positions;
9028 mono_marshal_lock ();
9029 for (i = 0; i < elem_addr_cache_next; ++i) {
9030 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9031 ret = elem_addr_cache [i].method;
9035 mono_marshal_unlock ();
9039 branch_positions = g_new0 (int, rank);
9041 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9043 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9044 sig->ret = &mono_defaults.int_class->byval_arg;
9045 sig->params [0] = &mono_defaults.object_class->byval_arg;
9046 for (i = 0; i < rank; ++i) {
9047 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9050 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9052 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9053 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9054 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9056 /* bounds = array->bounds; */
9057 mono_mb_emit_ldarg (mb, 0);
9058 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9059 mono_mb_emit_byte (mb, CEE_LDIND_I);
9060 mono_mb_emit_stloc (mb, bounds);
9062 /* ind is the overall element index, realidx is the partial index in a single dimension */
9063 /* ind = idx0 - bounds [0].lower_bound */
9064 mono_mb_emit_ldarg (mb, 1);
9065 mono_mb_emit_ldloc (mb, bounds);
9066 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9067 mono_mb_emit_byte (mb, CEE_ADD);
9068 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9069 mono_mb_emit_byte (mb, CEE_SUB);
9070 mono_mb_emit_stloc (mb, ind);
9071 /* if (ind >= bounds [0].length) goto exeception; */
9072 mono_mb_emit_ldloc (mb, ind);
9073 mono_mb_emit_ldloc (mb, bounds);
9074 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9075 mono_mb_emit_byte (mb, CEE_ADD);
9076 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9077 /* note that we use unsigned comparison */
9078 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9080 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9081 * We could also decide to ignore the passed elem_size and get it
9082 * from the array object, to reduce the number of methods we generate:
9083 * the additional cost is 3 memory loads and a non-immediate mul.
9085 for (i = 1; i < rank; ++i) {
9086 /* realidx = idxi - bounds [i].lower_bound */
9087 mono_mb_emit_ldarg (mb, 1 + i);
9088 mono_mb_emit_ldloc (mb, bounds);
9089 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9090 mono_mb_emit_byte (mb, CEE_ADD);
9091 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9092 mono_mb_emit_byte (mb, CEE_SUB);
9093 mono_mb_emit_stloc (mb, realidx);
9094 /* if (realidx >= bounds [i].length) goto exeception; */
9095 mono_mb_emit_ldloc (mb, realidx);
9096 mono_mb_emit_ldloc (mb, bounds);
9097 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9098 mono_mb_emit_byte (mb, CEE_ADD);
9099 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9100 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9101 /* ind = ind * bounds [i].length + realidx */
9102 mono_mb_emit_ldloc (mb, ind);
9103 mono_mb_emit_ldloc (mb, bounds);
9104 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9105 mono_mb_emit_byte (mb, CEE_ADD);
9106 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9107 mono_mb_emit_byte (mb, CEE_MUL);
9108 mono_mb_emit_ldloc (mb, realidx);
9109 mono_mb_emit_byte (mb, CEE_ADD);
9110 mono_mb_emit_stloc (mb, ind);
9113 /* return array->vector + ind * element_size */
9114 mono_mb_emit_ldarg (mb, 0);
9115 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9116 mono_mb_emit_ldloc (mb, ind);
9117 mono_mb_emit_icon (mb, elem_size);
9118 mono_mb_emit_byte (mb, CEE_MUL);
9119 mono_mb_emit_byte (mb, CEE_ADD);
9120 mono_mb_emit_byte (mb, CEE_RET);
9122 /* patch the branches to get here and throw */
9123 for (i = 1; i < rank; ++i) {
9124 mono_mb_patch_branch (mb, branch_positions [i]);
9126 mono_mb_patch_branch (mb, branch_pos);
9127 /* throw exception */
9128 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9130 g_free (branch_positions);
9131 ret = mono_mb_create_method (mb, sig, 4);
9134 /* cache the result */
9136 mono_marshal_lock ();
9137 for (i = 0; i < elem_addr_cache_next; ++i) {
9138 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9139 /* FIXME: free ret */
9140 ret = elem_addr_cache [i].method;
9146 if (elem_addr_cache_next >= elem_addr_cache_size) {
9147 int new_size = elem_addr_cache_size + 4;
9148 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9149 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9150 g_free (elem_addr_cache);
9151 elem_addr_cache = new_array;
9152 elem_addr_cache_size = new_size;
9154 elem_addr_cache [elem_addr_cache_next].rank = rank;
9155 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9156 elem_addr_cache [elem_addr_cache_next].method = ret;
9158 mono_marshal_unlock ();
9163 mono_marshal_alloc (gulong size)
9167 #ifdef PLATFORM_WIN32
9168 res = CoTaskMemAlloc (size);
9170 res = g_try_malloc ((gulong)size);
9172 mono_gc_out_of_memory ((gulong)size);
9178 mono_marshal_free (gpointer ptr)
9180 #ifdef PLATFORM_WIN32
9181 CoTaskMemFree (ptr);
9188 mono_marshal_free_array (gpointer *ptr, int size)
9195 for (i = 0; i < size; i++)
9201 mono_marshal_string_to_utf16 (MonoString *s)
9203 return s ? mono_string_chars (s) : NULL;
9207 mono_marshal_string_to_utf16_copy (MonoString *s)
9212 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9213 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9214 res [mono_string_length (s)] = 0;
9220 * mono_marshal_set_last_error:
9222 * This function is invoked to set the last error value from a P/Invoke call
9223 * which has SetLastError set.
9226 mono_marshal_set_last_error (void)
9229 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9231 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9236 mono_marshal_set_last_error_windows (int error)
9239 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9244 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9245 gpointer dest, gint32 length)
9250 MONO_ARCH_SAVE_REGS;
9252 MONO_CHECK_ARG_NULL (src);
9253 MONO_CHECK_ARG_NULL (dest);
9255 if (src->obj.vtable->klass->rank != 1)
9256 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9257 if (start_index < 0)
9258 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9260 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9261 if (start_index + length > mono_array_length (src))
9262 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9264 element_size = mono_array_element_size (src->obj.vtable->klass);
9266 /* no references should be involved */
9267 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9269 memcpy (dest, source_addr, length * element_size);
9273 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9274 MonoArray *dest, gint32 length)
9279 MONO_ARCH_SAVE_REGS;
9281 MONO_CHECK_ARG_NULL (src);
9282 MONO_CHECK_ARG_NULL (dest);
9284 if (dest->obj.vtable->klass->rank != 1)
9285 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9286 if (start_index < 0)
9287 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9289 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9290 if (start_index + length > mono_array_length (dest))
9291 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9293 element_size = mono_array_element_size (dest->obj.vtable->klass);
9295 /* no references should be involved */
9296 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9298 memcpy (dest_addr, src, length * element_size);
9301 #if NO_UNALIGNED_ACCESS
9302 #define RETURN_UNALIGNED(type, addr) \
9305 memcpy(&val, p + offset, sizeof(val)); \
9308 #define WRITE_UNALIGNED(type, addr, val) \
9309 memcpy(addr, &val, sizeof(type))
9311 #define RETURN_UNALIGNED(type, addr) \
9312 return *(type*)(p + offset);
9313 #define WRITE_UNALIGNED(type, addr, val) \
9314 (*(type *)(addr) = (val))
9318 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9322 MONO_ARCH_SAVE_REGS;
9324 RETURN_UNALIGNED(gpointer, p + offset);
9328 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9332 MONO_ARCH_SAVE_REGS;
9334 return *(unsigned char*)(p + offset);
9338 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9342 MONO_ARCH_SAVE_REGS;
9344 RETURN_UNALIGNED(gint16, p + offset);
9348 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9352 MONO_ARCH_SAVE_REGS;
9354 RETURN_UNALIGNED(gint32, p + offset);
9358 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9362 MONO_ARCH_SAVE_REGS;
9364 RETURN_UNALIGNED(gint64, p + offset);
9368 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9372 MONO_ARCH_SAVE_REGS;
9374 *(unsigned char*)(p + offset) = val;
9378 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9382 MONO_ARCH_SAVE_REGS;
9384 WRITE_UNALIGNED(gpointer, p + offset, val);
9388 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9392 MONO_ARCH_SAVE_REGS;
9394 WRITE_UNALIGNED(gint16, p + offset, val);
9398 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9402 MONO_ARCH_SAVE_REGS;
9404 WRITE_UNALIGNED(gint32, p + offset, val);
9408 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9412 MONO_ARCH_SAVE_REGS;
9414 WRITE_UNALIGNED(gint64, p + offset, val);
9418 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9420 MONO_ARCH_SAVE_REGS;
9425 return mono_string_new (mono_domain_get (), ptr);
9429 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9431 MONO_ARCH_SAVE_REGS;
9434 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9435 g_assert_not_reached ();
9438 return mono_string_new_len (mono_domain_get (), ptr, len);
9443 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9445 MonoDomain *domain = mono_domain_get ();
9449 MONO_ARCH_SAVE_REGS;
9457 return mono_string_new_utf16 (domain, ptr, len);
9461 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9463 MonoDomain *domain = mono_domain_get ();
9465 MONO_ARCH_SAVE_REGS;
9468 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9469 g_assert_not_reached ();
9472 return mono_string_new_utf16 (domain, ptr, len);
9477 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
9479 MONO_ARCH_SAVE_REGS;
9481 return mono_string_from_bstr(ptr);
9485 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
9487 MONO_ARCH_SAVE_REGS;
9489 return mono_string_to_bstr(ptr);
9493 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
9495 MONO_ARCH_SAVE_REGS;
9497 mono_free_bstr (ptr);
9501 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9503 MONO_ARCH_SAVE_REGS;
9505 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9509 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9515 MONO_ARCH_SAVE_REGS;
9517 MONO_CHECK_ARG_NULL (rtype);
9520 klass = mono_class_from_mono_type (type);
9521 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9523 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9527 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9528 exc = mono_get_exception_argument ("t", msg);
9530 mono_raise_exception (exc);
9534 return mono_class_native_size (klass, NULL);
9538 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9543 MONO_ARCH_SAVE_REGS;
9545 MONO_CHECK_ARG_NULL (obj);
9546 MONO_CHECK_ARG_NULL (dst);
9548 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9552 pa [2] = &delete_old;
9554 mono_runtime_invoke (method, NULL, pa, NULL);
9558 ptr_to_structure (gpointer src, MonoObject *dst)
9563 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9568 mono_runtime_invoke (method, NULL, pa, NULL);
9572 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9576 MONO_ARCH_SAVE_REGS;
9578 MONO_CHECK_ARG_NULL (src);
9579 MONO_CHECK_ARG_NULL (dst);
9581 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9583 if (t->type == MONO_TYPE_VALUETYPE) {
9587 tmp = g_strdup_printf ("Destination is a boxed value type.");
9588 exc = mono_get_exception_argument ("dst", tmp);
9591 mono_raise_exception (exc);
9595 ptr_to_structure (src, dst);
9599 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
9601 MonoDomain *domain = mono_domain_get ();
9604 MONO_ARCH_SAVE_REGS;
9606 MONO_CHECK_ARG_NULL (src);
9607 MONO_CHECK_ARG_NULL (type);
9609 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
9611 ptr_to_structure (src, res);
9617 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
9619 MonoMarshalType *info;
9622 int match_index = -1;
9624 MONO_ARCH_SAVE_REGS;
9626 MONO_CHECK_ARG_NULL (type);
9627 MONO_CHECK_ARG_NULL (field_name);
9629 fname = mono_string_to_utf8 (field_name);
9630 klass = mono_class_from_mono_type (type->type);
9632 while (klass && match_index == -1) {
9633 MonoClassField* field;
9635 gpointer iter = NULL;
9636 while ((field = mono_class_get_fields (klass, &iter))) {
9637 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9639 if (!strcmp (fname, mono_field_get_name (field))) {
9646 if (match_index == -1)
9647 klass = klass->parent;
9652 if(match_index == -1) {
9656 /* Get back original class instance */
9657 klass = mono_class_from_mono_type (type->type);
9659 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9660 exc = mono_get_exception_argument ("fieldName", tmp);
9663 mono_raise_exception ((MonoException*)exc);
9666 info = mono_marshal_load_type_info (klass);
9667 return info->fields [match_index].offset;
9671 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9673 #ifdef PLATFORM_WIN32
9676 tres = mono_string_to_utf8 (string);
9680 len = strlen (tres) + 1;
9681 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
9682 memcpy (ret, tres, len);
9687 return mono_string_to_utf8 (string);
9692 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9694 MONO_ARCH_SAVE_REGS;
9699 #ifdef PLATFORM_WIN32
9700 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
9701 ((mono_string_length (string) + 1) * 2);
9703 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9705 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9706 res [mono_string_length (string)] = 0;
9712 mono_struct_delete_old (MonoClass *klass, char *ptr)
9714 MonoMarshalType *info;
9717 info = mono_marshal_load_type_info (klass);
9719 for (i = 0; i < info->num_fields; i++) {
9720 MonoMarshalNative ntype;
9721 MonoMarshalConv conv;
9722 MonoType *ftype = info->fields [i].field->type;
9725 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9728 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9729 klass->unicode, &conv);
9731 cpos = ptr + info->fields [i].offset;
9734 case MONO_MARSHAL_CONV_NONE:
9735 if (MONO_TYPE_ISSTRUCT (ftype)) {
9736 mono_struct_delete_old (ftype->data.klass, cpos);
9740 case MONO_MARSHAL_CONV_STR_LPWSTR:
9741 /* We assume this field points inside a MonoString */
9743 case MONO_MARSHAL_CONV_STR_LPTSTR:
9744 #ifdef PLATFORM_WIN32
9745 /* We assume this field points inside a MonoString
9749 case MONO_MARSHAL_CONV_STR_LPSTR:
9750 case MONO_MARSHAL_CONV_STR_BSTR:
9751 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9752 case MONO_MARSHAL_CONV_STR_TBSTR:
9753 mono_marshal_free (*(gpointer *)cpos);
9763 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9767 MONO_ARCH_SAVE_REGS;
9769 MONO_CHECK_ARG_NULL (src);
9770 MONO_CHECK_ARG_NULL (type);
9772 klass = mono_class_from_mono_type (type->type);
9774 mono_struct_delete_old (klass, (char *)src);
9778 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9782 MONO_ARCH_SAVE_REGS;
9784 if ((gulong)size == 0)
9785 /* This returns a valid pointer for size 0 on MS.NET */
9788 #ifdef PLATFORM_WIN32
9789 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
9791 res = g_try_malloc ((gulong)size);
9794 mono_gc_out_of_memory ((gulong)size);
9800 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
9805 mono_gc_out_of_memory ((gulong)size);
9809 #ifdef PLATFORM_WIN32
9810 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
9812 res = g_try_realloc (ptr, (gulong)size);
9815 mono_gc_out_of_memory ((gulong)size);
9821 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9823 MONO_ARCH_SAVE_REGS;
9825 #ifdef PLATFORM_WIN32
9833 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9835 MONO_ARCH_SAVE_REGS;
9837 #ifdef PLATFORM_WIN32
9838 return CoTaskMemAlloc (size);
9840 return g_try_malloc ((gulong)size);
9845 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9847 MONO_ARCH_SAVE_REGS;
9849 #ifdef PLATFORM_WIN32
9850 CoTaskMemFree (ptr);
9857 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
9859 MONO_ARCH_SAVE_REGS;
9861 #ifdef PLATFORM_WIN32
9862 return CoTaskMemRealloc (ptr, size);
9864 return g_try_realloc (ptr, (gulong)size);
9869 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9871 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9875 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9877 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9881 * mono_marshal_is_loading_type_info:
9883 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9887 mono_marshal_is_loading_type_info (MonoClass *klass)
9889 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9891 return g_slist_find (loads_list, klass) != NULL;
9895 * mono_marshal_load_type_info:
9897 * Initialize klass->marshal_info using information from metadata. This function can
9898 * recursively call itself, and the caller is responsible to avoid that by calling
9899 * mono_marshal_is_loading_type_info () beforehand.
9901 * LOCKING: Acquires the loader lock.
9904 mono_marshal_load_type_info (MonoClass* klass)
9907 guint32 native_size = 0, min_align = 1;
9908 MonoMarshalType *info;
9909 MonoClassField* field;
9914 g_assert (klass != NULL);
9916 if (klass->marshal_info)
9917 return klass->marshal_info;
9920 mono_class_init (klass);
9922 mono_loader_lock ();
9924 if (klass->marshal_info) {
9925 mono_loader_unlock ();
9926 return klass->marshal_info;
9930 * This function can recursively call itself, so we keep the list of classes which are
9931 * under initialization in a TLS list.
9933 g_assert (!mono_marshal_is_loading_type_info (klass));
9934 loads_list = TlsGetValue (load_type_info_tls_id);
9935 loads_list = g_slist_prepend (loads_list, klass);
9936 TlsSetValue (load_type_info_tls_id, loads_list);
9939 while ((field = mono_class_get_fields (klass, &iter))) {
9940 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9942 if (mono_field_is_deleted (field))
9947 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9949 /* The mempool is protected by the loader lock */
9950 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9951 info->num_fields = count;
9953 /* Try to find a size for this type in metadata */
9954 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9956 if (klass->parent) {
9957 int parent_size = mono_class_native_size (klass->parent, NULL);
9959 /* Add parent size to real size */
9960 native_size += parent_size;
9961 info->native_size = parent_size;
9966 while ((field = mono_class_get_fields (klass, &iter))) {
9970 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9973 if (mono_field_is_deleted (field))
9975 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9976 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9977 NULL, NULL, &info->fields [j].mspec);
9979 info->fields [j].field = field;
9981 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9982 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
9983 /* This field is a hack inserted by MCS to empty structures */
9988 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9989 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
9990 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9991 &align, TRUE, klass->unicode);
9992 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9993 min_align = MAX (align, min_align);
9994 info->fields [j].offset = info->native_size;
9995 info->fields [j].offset += align - 1;
9996 info->fields [j].offset &= ~(align - 1);
9997 info->native_size = info->fields [j].offset + size;
9999 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10000 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10001 &align, TRUE, klass->unicode);
10002 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10003 min_align = MAX (align, min_align);
10004 info->fields [j].offset = field->offset - sizeof (MonoObject);
10005 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10011 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10012 info->native_size = MAX (native_size, info->native_size);
10015 if (info->native_size & (min_align - 1)) {
10016 info->native_size += min_align - 1;
10017 info->native_size &= ~(min_align - 1);
10020 info->min_align = min_align;
10022 /* Update the class's blittable info, if the layouts don't match */
10023 if (info->native_size != mono_class_value_size (klass, NULL))
10024 klass->blittable = FALSE;
10026 /* If this is an array type, ensure that we have element info */
10027 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10028 mono_marshal_load_type_info (klass->element_class);
10031 loads_list = TlsGetValue (load_type_info_tls_id);
10032 loads_list = g_slist_remove (loads_list, klass);
10033 TlsSetValue (load_type_info_tls_id, loads_list);
10035 /*We do double-checking locking on marshal_info */
10036 mono_memory_barrier ();
10038 klass->marshal_info = info;
10040 mono_loader_unlock ();
10042 return klass->marshal_info;
10046 * mono_class_native_size:
10049 * Returns: the native size of an object instance (when marshaled
10050 * to unmanaged code)
10053 mono_class_native_size (MonoClass *klass, guint32 *align)
10055 if (!klass->marshal_info) {
10056 if (mono_marshal_is_loading_type_info (klass)) {
10061 mono_marshal_load_type_info (klass);
10066 *align = klass->marshal_info->min_align;
10068 return klass->marshal_info->native_size;
10071 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10072 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10073 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10074 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10077 * mono_type_native_stack_size:
10078 * @t: the type to return the size it uses on the stack
10080 * Returns: the number of bytes required to hold an instance of this
10081 * type on the native stack
10084 mono_type_native_stack_size (MonoType *t, guint32 *align)
10088 g_assert (t != NULL);
10094 *align = sizeof (gpointer);
10095 return sizeof (gpointer);
10099 case MONO_TYPE_BOOLEAN:
10100 case MONO_TYPE_CHAR:
10111 case MONO_TYPE_STRING:
10112 case MONO_TYPE_OBJECT:
10113 case MONO_TYPE_CLASS:
10114 case MONO_TYPE_SZARRAY:
10115 case MONO_TYPE_PTR:
10116 case MONO_TYPE_FNPTR:
10117 case MONO_TYPE_ARRAY:
10118 *align = sizeof (gpointer);
10119 return sizeof (gpointer);
10124 *align = ALIGNMENT (gdouble);
10128 *align = ALIGNMENT (glong);
10130 case MONO_TYPE_GENERICINST:
10131 if (!mono_type_generic_inst_is_valuetype (t)) {
10132 *align = sizeof (gpointer);
10133 return sizeof (gpointer);
10136 case MONO_TYPE_TYPEDBYREF:
10137 case MONO_TYPE_VALUETYPE: {
10139 MonoClass *klass = mono_class_from_mono_type (t);
10141 if (klass->enumtype)
10142 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10144 size = mono_class_native_size (klass, align);
10145 *align = *align + 3;
10155 g_error ("type 0x%02x unknown", t->type);
10161 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10162 gboolean as_field, gboolean unicode)
10164 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10167 switch (native_type) {
10168 case MONO_NATIVE_BOOLEAN:
10171 case MONO_NATIVE_I1:
10172 case MONO_NATIVE_U1:
10175 case MONO_NATIVE_I2:
10176 case MONO_NATIVE_U2:
10177 case MONO_NATIVE_VARIANTBOOL:
10180 case MONO_NATIVE_I4:
10181 case MONO_NATIVE_U4:
10182 case MONO_NATIVE_ERROR:
10185 case MONO_NATIVE_I8:
10186 case MONO_NATIVE_U8:
10187 *align = ALIGNMENT(guint64);
10189 case MONO_NATIVE_R4:
10192 case MONO_NATIVE_R8:
10193 *align = ALIGNMENT(double);
10195 case MONO_NATIVE_INT:
10196 case MONO_NATIVE_UINT:
10197 case MONO_NATIVE_LPSTR:
10198 case MONO_NATIVE_LPWSTR:
10199 case MONO_NATIVE_LPTSTR:
10200 case MONO_NATIVE_BSTR:
10201 case MONO_NATIVE_ANSIBSTR:
10202 case MONO_NATIVE_TBSTR:
10203 case MONO_NATIVE_LPARRAY:
10204 case MONO_NATIVE_SAFEARRAY:
10205 case MONO_NATIVE_IUNKNOWN:
10206 case MONO_NATIVE_IDISPATCH:
10207 case MONO_NATIVE_INTERFACE:
10208 case MONO_NATIVE_ASANY:
10209 case MONO_NATIVE_FUNC:
10210 case MONO_NATIVE_LPSTRUCT:
10211 *align = ALIGNMENT(gpointer);
10212 return sizeof (gpointer);
10213 case MONO_NATIVE_STRUCT:
10214 klass = mono_class_from_mono_type (type);
10215 if (klass == mono_defaults.object_class &&
10216 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10220 return mono_class_native_size (klass, align);
10221 case MONO_NATIVE_BYVALTSTR: {
10222 int esize = unicode ? 2: 1;
10225 return mspec->data.array_data.num_elem * esize;
10227 case MONO_NATIVE_BYVALARRAY: {
10228 // FIXME: Have to consider ArraySubType
10230 klass = mono_class_from_mono_type (type);
10231 if (klass->element_class == mono_defaults.char_class) {
10232 esize = unicode ? 2 : 1;
10235 esize = mono_class_native_size (klass->element_class, align);
10238 return mspec->data.array_data.num_elem * esize;
10240 case MONO_NATIVE_CUSTOM:
10241 *align = sizeof (gpointer);
10242 return sizeof (gpointer);
10244 case MONO_NATIVE_CURRENCY:
10245 case MONO_NATIVE_VBBYREFSTR:
10247 g_error ("native type %02x not implemented", native_type);
10250 g_assert_not_reached ();
10255 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10263 t = &o->vtable->klass->byval_arg;
10267 case MONO_TYPE_PTR:
10270 case MONO_TYPE_BOOLEAN:
10273 case MONO_TYPE_CHAR:
10278 return mono_object_unbox (o);
10280 case MONO_TYPE_STRING:
10281 switch (string_encoding) {
10282 case MONO_NATIVE_LPWSTR:
10283 return mono_string_to_utf16 ((MonoString*)o);
10285 case MONO_NATIVE_LPSTR:
10286 return mono_string_to_lpstr ((MonoString*)o);
10289 g_warning ("marshaling conversion %d not implemented", string_encoding);
10290 g_assert_not_reached ();
10293 case MONO_TYPE_CLASS:
10294 case MONO_TYPE_VALUETYPE: {
10295 MonoMethod *method;
10298 MonoBoolean delete_old = FALSE;
10300 klass = t->data.klass;
10302 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10305 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10306 klass->blittable || klass->enumtype))
10307 return mono_object_unbox (o);
10309 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10311 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10312 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10316 pa [2] = &delete_old;
10318 mono_runtime_invoke (method, NULL, pa, NULL);
10325 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10331 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10339 t = &o->vtable->klass->byval_arg;
10341 case MONO_TYPE_STRING:
10342 switch (string_encoding) {
10343 case MONO_NATIVE_LPWSTR:
10344 case MONO_NATIVE_LPSTR:
10345 mono_marshal_free (ptr);
10348 g_warning ("marshaling conversion %d not implemented", string_encoding);
10349 g_assert_not_reached ();
10352 case MONO_TYPE_CLASS:
10353 case MONO_TYPE_VALUETYPE: {
10354 klass = t->data.klass;
10356 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10357 klass->blittable || klass->enumtype))
10360 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10361 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10367 mono_runtime_invoke (method, NULL, pa, NULL);
10370 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10371 mono_struct_delete_old (klass, ptr);
10374 mono_marshal_free (ptr);
10383 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10385 MonoMethodSignature *sig, *csig;
10386 MonoMethodBuilder *mb;
10390 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10391 mb->method->slot = -1;
10393 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10394 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10396 sig = mono_method_signature (method);
10397 csig = signature_dup (method->klass->image, sig);
10398 csig->generic_param_count = 0;
10400 mono_mb_emit_ldarg (mb, 0);
10401 for (i = 0; i < csig->param_count; i++)
10402 mono_mb_emit_ldarg (mb, i + 1);
10403 mono_mb_emit_managed_call (mb, method, NULL);
10404 mono_mb_emit_byte (mb, CEE_RET);
10406 /* We can corlib internal methods */
10407 mb->skip_visibility = TRUE;
10409 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10417 * The mono_win32_compat_* functions are implementations of inline
10418 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10419 * although not exported by kernel32.
10421 * We map the appropiate kernel32 entries to these functions using
10422 * dllmaps declared in the global etc/mono/config.
10426 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10428 if (!dest || !source)
10431 memcpy (dest, source, length);
10435 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10437 memset (dest, fill, length);
10441 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10443 if (!dest || !source)
10446 memmove (dest, source, length);
10450 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10452 memset (dest, 0, length);
10456 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10461 for (i = 0; i < len; ++i)
10465 g_assert (i < len);
10468 while (byte && !(byte & 1))
10470 g_assert (byte == 1);
10473 *bitmask = buf [i];
10477 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10479 MonoMethodBuilder *mb;
10480 MonoMethodSignature *sig, *csig;
10481 MonoExceptionClause *clause;
10486 int i, param_count, sig_size, pos_leave;
10490 klass = method->klass;
10491 image = method->klass->image;
10492 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10494 if ((res = mono_marshal_find_in_cache (cache, method)))
10497 sig = mono_method_signature (method);
10498 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10500 /* add "this" and exception param */
10501 param_count = sig->param_count + sig->hasthis + 1;
10503 /* dup & extend signature */
10504 csig = mono_metadata_signature_alloc (image, param_count);
10505 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
10506 memcpy (csig, sig, sig_size);
10507 csig->param_count = param_count;
10510 csig->call_convention = MONO_CALL_DEFAULT;
10512 if (sig->hasthis) {
10514 csig->params [0] = &klass->byval_arg;
10515 /* move params up by one */
10516 for (i = 0; i < sig->param_count; i++)
10517 csig->params [i + 1] = sig->params [i];
10520 /* setup exception param as byref+[out] */
10521 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10522 &mono_defaults.exception_class->byval_arg);
10523 csig->params [param_count - 1]->byref = 1;
10524 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10526 /* convert struct return to object */
10527 if (MONO_TYPE_ISSTRUCT (sig->ret))
10528 csig->ret = &mono_defaults.object_class->byval_arg;
10530 /* local 0 (temp for exception object) */
10531 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10533 /* local 1 (temp for result) */
10534 if (!MONO_TYPE_IS_VOID (sig->ret))
10535 mono_mb_add_local (mb, sig->ret);
10537 /* clear exception arg */
10538 mono_mb_emit_ldarg (mb, param_count - 1);
10539 mono_mb_emit_byte (mb, CEE_LDNULL);
10540 mono_mb_emit_byte (mb, CEE_STIND_REF);
10543 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10544 clause->try_offset = mono_mb_get_label (mb);
10546 /* push method's args */
10547 for (i = 0; i < param_count - 1; i++) {
10551 mono_mb_emit_ldarg (mb, i);
10553 /* get the byval type of the param */
10554 klass = mono_class_from_mono_type (csig->params [i]);
10555 type = &klass->byval_arg;
10557 /* unbox struct args */
10558 if (MONO_TYPE_ISSTRUCT (type)) {
10559 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10561 /* byref args & and the "this" arg must remain a ptr.
10562 Otherwise make a copy of the value type */
10563 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10564 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10566 csig->params [i] = &mono_defaults.object_class->byval_arg;
10571 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10572 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10574 mono_mb_emit_op (mb, CEE_CALL, method);
10576 /* save result at local 1 */
10577 if (!MONO_TYPE_IS_VOID (sig->ret))
10578 mono_mb_emit_stloc (mb, 1);
10580 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10583 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10584 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10585 clause->data.catch_class = mono_defaults.object_class;
10587 clause->handler_offset = mono_mb_get_label (mb);
10589 /* store exception at local 0 */
10590 mono_mb_emit_stloc (mb, 0);
10591 mono_mb_emit_ldarg (mb, param_count - 1);
10592 mono_mb_emit_ldloc (mb, 0);
10593 mono_mb_emit_byte (mb, CEE_STIND_REF);
10594 mono_mb_emit_branch (mb, CEE_LEAVE);
10596 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10598 mono_mb_set_clauses (mb, 1, clause);
10600 mono_mb_patch_branch (mb, pos_leave);
10603 if (!MONO_TYPE_IS_VOID (sig->ret)) {
10604 mono_mb_emit_ldloc (mb, 1);
10606 /* box the return value */
10607 if (MONO_TYPE_ISSTRUCT (sig->ret))
10608 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
10611 mono_mb_emit_byte (mb, CEE_RET);
10613 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
10620 * mono_marshal_free_dynamic_wrappers:
10622 * Free wrappers of the dynamic method METHOD.
10625 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
10627 g_assert (method->dynamic);
10629 mono_marshal_lock ();
10631 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10632 * they could be shared with other methods ?
10634 if (method->klass->image->runtime_invoke_direct_cache)
10635 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10636 mono_marshal_unlock ();