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)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threadpool.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internal.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internal.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/utils/mono-counters.h"
42 #include "mono/utils/mono-tls.h"
43 #include "mono/utils/mono-memory-model.h"
44 #include "mono/utils/atomic.h"
48 /* #define DEBUG_RUNTIME_CODE */
50 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
54 #include "mono/cil/opcode.def"
60 * This mutex protects the various marshalling related caches in MonoImage
61 * and a few other data structures static to this file.
63 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
64 * runtime locking latice. Which means it can take simple locks suck as the image lock.
66 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
67 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
68 static mono_mutex_t marshal_mutex;
69 static gboolean marshal_mutex_initialized;
71 static MonoNativeTlsKey last_error_tls_id;
73 static MonoNativeTlsKey load_type_info_tls_id;
75 static gboolean use_aot_wrappers;
78 delegate_hash_table_add (MonoDelegate *d);
81 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
84 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
87 mono_struct_delete_old (MonoClass *klass, char *ptr);
90 mono_marshal_string_to_utf16 (MonoString *s);
93 mono_marshal_string_to_utf16_copy (MonoString *s);
96 mono_string_to_lpstr (MonoString *string_obj);
98 static MonoStringBuilder *
99 mono_string_utf8_to_builder2 (char *text);
101 static MonoStringBuilder *
102 mono_string_utf16_to_builder2 (gunichar2 *text);
105 mono_string_new_len_wrapper (const char *text, guint length);
108 mono_string_from_byvalstr (const char *data, int len);
111 mono_string_from_byvalwstr (gunichar2 *data, int len);
114 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
117 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
120 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
123 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
125 static MonoAsyncResult *
126 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
129 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_marshal_set_last_error_windows (int error);
134 static void init_safe_handle (void);
136 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
137 static MonoMethod *sh_dangerous_add_ref;
138 static MonoMethod *sh_dangerous_release;
144 sh_dangerous_add_ref = mono_class_get_method_from_name (
145 mono_defaults.safehandle_class, "DangerousAddRef", 1);
146 sh_dangerous_release = mono_class_get_method_from_name (
147 mono_defaults.safehandle_class, "DangerousRelease", 0);
151 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
153 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
155 mono_register_jit_icall (func, name, sig, save);
158 static MonoMethodSignature*
159 signature_dup (MonoImage *image, MonoMethodSignature *sig)
161 MonoMethodSignature *res;
164 res = mono_metadata_signature_alloc (image, sig->param_count);
165 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
166 memcpy (res, sig, sigsize);
172 mono_signature_no_pinvoke (MonoMethod *method)
174 MonoMethodSignature *sig = mono_method_signature (method);
176 sig = signature_dup (method->klass->image, sig);
177 sig->pinvoke = FALSE;
184 mono_marshal_init_tls (void)
186 mono_native_tls_alloc (&last_error_tls_id, NULL);
187 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
191 mono_marshal_init (void)
193 static gboolean module_initialized = FALSE;
195 if (!module_initialized) {
196 module_initialized = TRUE;
197 mono_mutex_init_recursive (&marshal_mutex);
198 marshal_mutex_initialized = TRUE;
200 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
201 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
202 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
203 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
204 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
205 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
206 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
207 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
208 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
209 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
210 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
211 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
212 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
213 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
214 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
215 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
216 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
217 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
218 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
219 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
220 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
221 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
222 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
223 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
224 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
225 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
226 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
227 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
228 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
229 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
230 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
231 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
232 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
233 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
234 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
235 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
236 register_icall (g_free, "g_free", "void ptr", FALSE);
237 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
238 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
239 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
240 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
241 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
242 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
243 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
244 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
245 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
247 mono_cominterop_init ();
248 mono_remoting_init ();
253 mono_marshal_cleanup (void)
255 mono_cominterop_cleanup ();
257 mono_native_tls_free (load_type_info_tls_id);
258 mono_native_tls_free (last_error_tls_id);
259 mono_mutex_destroy (&marshal_mutex);
260 marshal_mutex_initialized = FALSE;
264 mono_marshal_lock_internal (void)
266 mono_marshal_lock ();
270 mono_marshal_unlock_internal (void)
272 mono_marshal_unlock ();
276 mono_delegate_to_ftnptr (MonoDelegate *delegate)
278 MonoMethod *method, *wrapper;
280 uint32_t target_handle = 0;
285 if (delegate->delegate_trampoline)
286 return delegate->delegate_trampoline;
288 klass = ((MonoObject *)delegate)->vtable->klass;
289 g_assert (klass->delegate);
291 method = delegate->method;
293 if (mono_method_signature (method)->pinvoke) {
294 const char *exc_class, *exc_arg;
297 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
299 g_assert (exc_class);
300 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
305 if (delegate->target) {
306 /* Produce a location which can be embedded in JITted code */
307 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
310 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
312 delegate->delegate_trampoline = mono_compile_method (wrapper);
314 // Add the delegate to the delegate hash table
315 delegate_hash_table_add (delegate);
317 /* when the object is collected, collect the dynamic method, too */
318 mono_object_register_finalizer ((MonoObject*)delegate);
320 return delegate->delegate_trampoline;
324 * this hash table maps from a delegate trampoline object to a weak reference
325 * of the delegate. As an optimizations with a non-moving GC we store the
326 * object pointer itself, otherwise we use a GC handle.
328 static GHashTable *delegate_hash_table;
331 delegate_hash_table_new (void) {
332 return g_hash_table_new (NULL, NULL);
336 delegate_hash_table_remove (MonoDelegate *d)
338 guint32 gchandle = 0;
340 mono_marshal_lock ();
341 if (delegate_hash_table == NULL)
342 delegate_hash_table = delegate_hash_table_new ();
343 if (mono_gc_is_moving ())
344 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
345 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
346 mono_marshal_unlock ();
347 if (mono_gc_is_moving ())
348 mono_gchandle_free (gchandle);
352 delegate_hash_table_add (MonoDelegate *d)
355 guint32 old_gchandle;
357 mono_marshal_lock ();
358 if (delegate_hash_table == NULL)
359 delegate_hash_table = delegate_hash_table_new ();
360 if (mono_gc_is_moving ()) {
361 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
362 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
363 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
365 mono_gchandle_free (old_gchandle);
367 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
369 mono_marshal_unlock ();
373 * mono_marshal_use_aot_wrappers:
375 * Instructs this module to use AOT compatible wrappers.
378 mono_marshal_use_aot_wrappers (gboolean use)
380 use_aot_wrappers = use;
384 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
386 static MonoClass *UnmanagedFunctionPointerAttribute;
387 MonoCustomAttrInfo *cinfo;
388 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
390 if (!UnmanagedFunctionPointerAttribute)
391 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
393 /* The attribute is only available in Net 2.0 */
394 if (UnmanagedFunctionPointerAttribute) {
396 * The pinvoke attributes are stored in a real custom attribute so we have to
399 cinfo = mono_custom_attrs_from_class (klass);
400 if (cinfo && !mono_runtime_get_no_exec ()) {
402 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
404 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
406 if (!mono_error_ok (&error)) {
407 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
408 mono_error_cleanup (&error);
412 mono_custom_attrs_free (cinfo);
418 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
426 mono_marshal_lock ();
427 if (delegate_hash_table == NULL)
428 delegate_hash_table = delegate_hash_table_new ();
430 if (mono_gc_is_moving ()) {
431 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
432 mono_marshal_unlock ();
434 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
438 d = g_hash_table_lookup (delegate_hash_table, ftn);
439 mono_marshal_unlock ();
442 /* This is a native function, so construct a delegate for it */
443 MonoMethodSignature *sig;
445 MonoMarshalSpec **mspecs;
446 MonoMethod *invoke = mono_get_delegate_invoke (klass);
447 MonoMethodPInvoke piinfo;
451 if (use_aot_wrappers) {
452 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
453 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
455 memset (&piinfo, 0, sizeof (piinfo));
456 parse_unmanaged_function_pointer_attr (klass, &piinfo);
458 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
459 mono_method_get_marshal_info (invoke, mspecs);
460 /* Freed below so don't alloc from mempool */
461 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
464 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
467 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
469 mono_metadata_free_marshal_spec (mspecs [i]);
474 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
475 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
478 if (d->object.vtable->domain != mono_domain_get ())
479 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
485 mono_delegate_free_ftnptr (MonoDelegate *delegate)
490 delegate_hash_table_remove (delegate);
492 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
494 if (!delegate->target) {
495 /* The wrapper method is shared between delegates -> no need to free it */
504 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
507 method = mono_jit_info_get_method (ji);
508 method_data = ((MonoMethodWrapper*)method)->method_data;
510 /*the target gchandle is the first entry after size and the wrapper itself.*/
511 gchandle = GPOINTER_TO_UINT (method_data [2]);
514 mono_gchandle_free (gchandle);
516 mono_runtime_free_method (mono_object_domain (delegate), method);
521 mono_string_from_byvalstr (const char *data, int max_len)
523 MonoDomain *domain = mono_domain_get ();
529 while (len < max_len - 1 && data [len])
532 return mono_string_new_len (domain, data, len);
536 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
538 MonoDomain *domain = mono_domain_get ();
544 while (data [len]) len++;
546 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
550 mono_array_to_savearray (MonoArray *array)
555 g_assert_not_reached ();
560 mono_array_to_lparray (MonoArray *array)
563 gpointer *nativeArray = NULL;
564 int nativeArraySize = 0;
574 klass = array->obj.vtable->klass;
576 switch (klass->element_class->byval_arg.type) {
578 g_assert_not_reached ();
580 case MONO_TYPE_CLASS:
581 nativeArraySize = array->max_length;
582 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
583 for(i = 0; i < nativeArraySize; ++i)
584 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
587 case MONO_TYPE_BOOLEAN:
600 case MONO_TYPE_VALUETYPE:
604 case MONO_TYPE_GENERICINST:
605 case MONO_TYPE_OBJECT:
606 case MONO_TYPE_ARRAY:
607 case MONO_TYPE_SZARRAY:
608 case MONO_TYPE_STRING:
610 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
611 g_assert_not_reached ();
614 return array->vector;
618 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
629 klass = array->obj.vtable->klass;
631 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
632 for(i = 0; i < array->max_length; ++i)
633 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
640 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
642 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
644 if (elclass == mono_defaults.byte_class) {
645 GError *error = NULL;
649 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
652 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
656 g_error_free (error);
659 g_assert_not_reached ();
663 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
665 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
669 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
671 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
673 if (elclass == mono_defaults.byte_class) {
675 GError *error = NULL;
677 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
679 MonoException *exc = mono_get_exception_argument ("string", error->message);
680 g_error_free (error);
681 mono_raise_exception (exc);
684 memcpy (native_arr, as, MIN (strlen (as), elnum));
687 g_assert_not_reached ();
692 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
694 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
697 static MonoStringBuilder *
698 mono_string_builder_new (void)
700 static MonoClass *string_builder_class;
701 static MonoMethod *sb_ctor;
702 static void *args [1];
703 static int initial_len;
705 if (!string_builder_class) {
706 MonoMethodDesc *desc;
708 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
709 g_assert (string_builder_class);
710 desc = mono_method_desc_new (":.ctor(int)", FALSE);
711 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
713 mono_method_desc_free (desc);
715 // We make a new array in the _to_builder function, so this
716 // array will always be garbage collected.
718 args [0] = &initial_len;
721 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
725 mono_runtime_invoke (sb_ctor, sb, args, &exc);
727 g_assert (sb->chunkChars->max_length == initial_len);
734 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t len)
736 MonoClass *ac = mono_array_class_get (mono_defaults.char_class, 1);
739 MonoArray* newArray = mono_array_new (mono_domain_get (), mono_defaults.char_class, len);
741 gunichar2 *charDst = (gunichar2 *)newArray->vector;
742 gunichar2 *charSrc = (gunichar2 *)text;
743 memcpy (charDst, charSrc, sizeof (gunichar2) * len);
745 MONO_OBJECT_SETREF (sb, chunkChars, newArray);
747 sb->chunkLength = len;
753 mono_string_utf16_to_builder2 (gunichar2 *text)
758 MonoStringBuilder *sb = mono_string_builder_new ();
759 mono_string_utf16_to_builder (sb, text);
765 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
771 int len = strlen (text);
772 GError *error = NULL;
773 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, NULL, &error);
776 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
777 mono_string_utf16_to_builder_copy (sb, ut, len);
779 g_error_free (error);
785 mono_string_utf8_to_builder2 (char *text)
790 MonoStringBuilder *sb = mono_string_builder_new ();
791 mono_string_utf8_to_builder (sb, text);
798 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
804 for (len = 0; text [len] != 0; ++len);
806 mono_string_utf16_to_builder_copy (sb, text, len);
810 * mono_string_builder_to_utf8:
811 * @sb: the string builder
813 * Converts to utf8 the contents of the MonoStringBuilder.
815 * Returns: a utf8 string with the contents of the StringBuilder.
817 * The return value must be released with g_free.
820 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
822 GError *error = NULL;
828 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
830 guint str_len = mono_string_builder_string_length (sb);
832 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
835 g_error_free (error);
837 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
840 guint len = mono_string_builder_length (sb) + 1;
841 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
842 g_assert (str_len < len);
843 memcpy (res, tmp, str_len * sizeof (gchar));
854 * mono_string_builder_to_utf16:
855 * @sb: the string builder
857 * Converts to utf16 the contents of the MonoStringBuilder.
859 * Returns: a utf16 string with the contents of the StringBuilder.
861 * The return value must not be freed.
864 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
869 g_assert (sb->chunkChars);
871 guint len = mono_string_builder_length (sb);
876 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
882 MonoStringBuilder* chunk = sb;
884 if (chunk->chunkLength > 0) {
885 // Check that we will not overrun our boundaries.
886 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
888 if (chunk->chunkLength <= len) {
889 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
891 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
894 len -= chunk->chunkLength;
896 chunk = chunk->chunkPrevious;
897 } while (chunk != NULL);
903 mono_string_to_lpstr (MonoString *s)
908 GError *error = NULL;
914 as = CoTaskMemAlloc (1);
919 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
921 MonoException *exc = mono_get_exception_argument ("string", error->message);
922 g_error_free (error);
923 mono_raise_exception(exc);
926 as = CoTaskMemAlloc (len + 1);
927 memcpy (as, tmp, len + 1);
932 return mono_string_to_utf8 (s);
937 mono_string_to_ansibstr (MonoString *string_obj)
939 g_error ("UnmanagedMarshal.BStr is not implemented.");
944 * mono_string_to_byvalstr:
945 * @dst: Where to store the null-terminated utf8 decoded string.
946 * @src: the MonoString to copy.
947 * @size: the maximum number of bytes to copy.
949 * Copies the MonoString pointed to by @src as a utf8 string
950 * into @dst, it copies at most @size bytes into the destination.
953 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
958 g_assert (dst != NULL);
961 memset (dst, 0, size);
965 s = mono_string_to_utf8 (src);
966 len = MIN (size, strlen (s));
969 memcpy (dst, s, len);
974 * mono_string_to_byvalwstr:
975 * @dst: Where to store the null-terminated utf16 decoded string.
976 * @src: the MonoString to copy.
977 * @size: the maximum number of bytes to copy.
979 * Copies the MonoString pointed to by @src as a utf16 string into
980 * @dst, it copies at most @size bytes into the destination (including
981 * a terminating 16-bit zero terminator).
984 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
988 g_assert (dst != NULL);
992 memset (dst, 0, size * 2);
996 len = MIN (size, (mono_string_length (src)));
997 memcpy (dst, mono_string_chars (src), size * 2);
998 if (size <= mono_string_length (src))
1000 *((gunichar2 *) dst + len) = 0;
1004 mono_string_new_len_wrapper (const char *text, guint length)
1006 return mono_string_new_len (mono_domain_get (), text, length);
1012 * mono_mb_emit_exception_marshal_directive:
1014 * This function assumes ownership of MSG, which should be malloc-ed.
1017 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1022 s = mono_image_strdup (mb->method->klass->image, msg);
1027 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1030 #endif /* !DISABLE_JIT */
1033 mono_type_to_ldind (MonoType *type)
1039 switch (type->type) {
1041 return CEE_LDIND_I1;
1043 case MONO_TYPE_BOOLEAN:
1044 return CEE_LDIND_U1;
1046 return CEE_LDIND_I2;
1048 case MONO_TYPE_CHAR:
1049 return CEE_LDIND_U2;
1051 return CEE_LDIND_I4;
1053 return CEE_LDIND_U4;
1057 case MONO_TYPE_FNPTR:
1059 case MONO_TYPE_CLASS:
1060 case MONO_TYPE_STRING:
1061 case MONO_TYPE_OBJECT:
1062 case MONO_TYPE_SZARRAY:
1063 case MONO_TYPE_ARRAY:
1064 return CEE_LDIND_REF;
1067 return CEE_LDIND_I8;
1069 return CEE_LDIND_R4;
1071 return CEE_LDIND_R8;
1072 case MONO_TYPE_VALUETYPE:
1073 if (type->data.klass->enumtype) {
1074 type = mono_class_enum_basetype (type->data.klass);
1078 case MONO_TYPE_TYPEDBYREF:
1080 case MONO_TYPE_GENERICINST:
1081 type = &type->data.generic_class->container_class->byval_arg;
1084 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1090 mono_type_to_stind (MonoType *type)
1096 switch (type->type) {
1099 case MONO_TYPE_BOOLEAN:
1100 return CEE_STIND_I1;
1103 case MONO_TYPE_CHAR:
1104 return CEE_STIND_I2;
1107 return CEE_STIND_I4;
1111 case MONO_TYPE_FNPTR:
1113 case MONO_TYPE_CLASS:
1114 case MONO_TYPE_STRING:
1115 case MONO_TYPE_OBJECT:
1116 case MONO_TYPE_SZARRAY:
1117 case MONO_TYPE_ARRAY:
1118 return CEE_STIND_REF;
1121 return CEE_STIND_I8;
1123 return CEE_STIND_R4;
1125 return CEE_STIND_R8;
1126 case MONO_TYPE_VALUETYPE:
1127 if (type->data.klass->enumtype) {
1128 type = mono_class_enum_basetype (type->data.klass);
1132 case MONO_TYPE_TYPEDBYREF:
1134 case MONO_TYPE_GENERICINST:
1135 type = &type->data.generic_class->container_class->byval_arg;
1138 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1146 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1149 case MONO_MARSHAL_CONV_BOOL_I4:
1150 mono_mb_emit_ldloc (mb, 1);
1151 mono_mb_emit_ldloc (mb, 0);
1152 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1153 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1154 mono_mb_emit_byte (mb, 3);
1155 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1156 mono_mb_emit_byte (mb, CEE_BR_S);
1157 mono_mb_emit_byte (mb, 1);
1158 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1159 mono_mb_emit_byte (mb, CEE_STIND_I1);
1161 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1162 mono_mb_emit_ldloc (mb, 1);
1163 mono_mb_emit_ldloc (mb, 0);
1164 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1165 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1166 mono_mb_emit_byte (mb, 3);
1167 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1168 mono_mb_emit_byte (mb, CEE_BR_S);
1169 mono_mb_emit_byte (mb, 1);
1170 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1171 mono_mb_emit_byte (mb, CEE_STIND_I1);
1173 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1174 MonoClass *eklass = NULL;
1177 if (type->type == MONO_TYPE_SZARRAY) {
1178 eklass = type->data.klass;
1180 g_assert_not_reached ();
1183 esize = mono_class_native_size (eklass, NULL);
1185 /* create a new array */
1186 mono_mb_emit_ldloc (mb, 1);
1187 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1188 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1189 mono_mb_emit_byte (mb, CEE_STIND_I);
1191 if (eklass->blittable) {
1192 /* copy the elements */
1193 mono_mb_emit_ldloc (mb, 1);
1194 mono_mb_emit_byte (mb, CEE_LDIND_I);
1195 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1196 mono_mb_emit_byte (mb, CEE_ADD);
1197 mono_mb_emit_ldloc (mb, 0);
1198 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1199 mono_mb_emit_byte (mb, CEE_PREFIX1);
1200 mono_mb_emit_byte (mb, CEE_CPBLK);
1203 int array_var, src_var, dst_var, index_var;
1204 guint32 label2, label3;
1206 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1207 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1208 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1211 mono_mb_emit_ldloc (mb, 1);
1212 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1213 mono_mb_emit_stloc (mb, array_var);
1215 /* save the old src pointer */
1216 mono_mb_emit_ldloc (mb, 0);
1217 mono_mb_emit_stloc (mb, src_var);
1218 /* save the old dst pointer */
1219 mono_mb_emit_ldloc (mb, 1);
1220 mono_mb_emit_stloc (mb, dst_var);
1222 /* Emit marshalling loop */
1223 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1224 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1225 mono_mb_emit_stloc (mb, index_var);
1228 label2 = mono_mb_get_label (mb);
1229 mono_mb_emit_ldloc (mb, index_var);
1230 mono_mb_emit_ldloc (mb, array_var);
1231 mono_mb_emit_byte (mb, CEE_LDLEN);
1232 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1234 /* src is already set */
1237 mono_mb_emit_ldloc (mb, array_var);
1238 mono_mb_emit_ldloc (mb, index_var);
1239 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1240 mono_mb_emit_stloc (mb, 1);
1242 /* Do the conversion */
1243 emit_struct_conv (mb, eklass, TRUE);
1246 mono_mb_emit_add_to_local (mb, index_var, 1);
1248 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1250 mono_mb_patch_branch (mb, label3);
1252 /* restore the old src pointer */
1253 mono_mb_emit_ldloc (mb, src_var);
1254 mono_mb_emit_stloc (mb, 0);
1255 /* restore the old dst pointer */
1256 mono_mb_emit_ldloc (mb, dst_var);
1257 mono_mb_emit_stloc (mb, 1);
1261 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1262 MonoClass *eclass = mono_defaults.char_class;
1264 /* create a new array */
1265 mono_mb_emit_ldloc (mb, 1);
1266 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1267 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1268 mono_mb_emit_byte (mb, CEE_STIND_REF);
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1272 mono_mb_emit_ldloc (mb, 0);
1273 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1274 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1277 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1278 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1279 mono_mb_emit_ldloc (mb, 1);
1280 mono_mb_emit_ldloc (mb, 0);
1281 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1282 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1284 mono_mb_emit_ldloc (mb, 1);
1285 mono_mb_emit_ldloc (mb, 0);
1286 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1288 mono_mb_emit_byte (mb, CEE_STIND_REF);
1290 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1291 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1292 mono_mb_emit_ldloc (mb, 1);
1293 mono_mb_emit_ldloc (mb, 0);
1294 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1295 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1297 mono_mb_emit_ldloc (mb, 1);
1298 mono_mb_emit_ldloc (mb, 0);
1299 mono_mb_emit_icall (mb, mono_string_from_utf16);
1301 mono_mb_emit_byte (mb, CEE_STIND_REF);
1303 case MONO_MARSHAL_CONV_STR_LPTSTR:
1304 mono_mb_emit_ldloc (mb, 1);
1305 mono_mb_emit_ldloc (mb, 0);
1306 mono_mb_emit_byte (mb, CEE_LDIND_I);
1308 mono_mb_emit_icall (mb, mono_string_from_utf16);
1310 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1312 mono_mb_emit_byte (mb, CEE_STIND_REF);
1314 case MONO_MARSHAL_CONV_STR_LPSTR:
1315 mono_mb_emit_ldloc (mb, 1);
1316 mono_mb_emit_ldloc (mb, 0);
1317 mono_mb_emit_byte (mb, CEE_LDIND_I);
1318 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1319 mono_mb_emit_byte (mb, CEE_STIND_REF);
1321 case MONO_MARSHAL_CONV_STR_LPWSTR:
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_byte (mb, CEE_LDIND_I);
1325 mono_mb_emit_icall (mb, mono_string_from_utf16);
1326 mono_mb_emit_byte (mb, CEE_STIND_REF);
1328 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1329 MonoClass *klass = mono_class_from_mono_type (type);
1330 int src_var, dst_var;
1332 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1333 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1335 /* *dst = new object */
1336 mono_mb_emit_ldloc (mb, 1);
1337 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1338 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1339 mono_mb_emit_byte (mb, CEE_STIND_REF);
1341 /* save the old src pointer */
1342 mono_mb_emit_ldloc (mb, 0);
1343 mono_mb_emit_stloc (mb, src_var);
1344 /* save the old dst pointer */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_stloc (mb, dst_var);
1348 /* dst = pointer to newly created object data */
1349 mono_mb_emit_ldloc (mb, 1);
1350 mono_mb_emit_byte (mb, CEE_LDIND_I);
1351 mono_mb_emit_icon (mb, sizeof (MonoObject));
1352 mono_mb_emit_byte (mb, CEE_ADD);
1353 mono_mb_emit_stloc (mb, 1);
1355 emit_struct_conv (mb, klass, TRUE);
1357 /* restore the old src pointer */
1358 mono_mb_emit_ldloc (mb, src_var);
1359 mono_mb_emit_stloc (mb, 0);
1360 /* restore the old dst pointer */
1361 mono_mb_emit_ldloc (mb, dst_var);
1362 mono_mb_emit_stloc (mb, 1);
1365 case MONO_MARSHAL_CONV_DEL_FTN: {
1366 MonoClass *klass = mono_class_from_mono_type (type);
1368 mono_mb_emit_ldloc (mb, 1);
1369 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1370 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1371 mono_mb_emit_ldloc (mb, 0);
1372 mono_mb_emit_byte (mb, CEE_LDIND_I);
1373 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1374 mono_mb_emit_byte (mb, CEE_STIND_REF);
1377 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1378 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1382 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1383 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1384 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1385 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1387 #endif /* DISABLE_COM */
1389 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1391 * Passing SafeHandles as ref does not allow the unmanaged code
1392 * to change the SafeHandle value. If the value is changed,
1393 * we should issue a diagnostic exception (NotSupportedException)
1394 * that informs the user that changes to handles in unmanaged code
1397 * Since we currently have no access to the original
1398 * SafeHandle that was used during the marshalling,
1399 * for now we just ignore this, and ignore/discard any
1400 * changes that might have happened to the handle.
1405 case MONO_MARSHAL_CONV_HANDLEREF: {
1407 * Passing HandleRefs in a struct that is ref()ed does not
1408 * copy the values back to the HandleRef
1413 case MONO_MARSHAL_CONV_STR_BSTR:
1414 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1415 case MONO_MARSHAL_CONV_STR_TBSTR:
1416 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1418 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1420 mono_mb_emit_exception_marshal_directive (mb, msg);
1427 conv_to_icall (MonoMarshalConv conv)
1430 case MONO_MARSHAL_CONV_STR_LPWSTR:
1431 return mono_marshal_string_to_utf16;
1432 case MONO_MARSHAL_CONV_LPWSTR_STR:
1433 return mono_string_from_utf16;
1434 case MONO_MARSHAL_CONV_LPTSTR_STR:
1435 return mono_string_new_wrapper;
1436 case MONO_MARSHAL_CONV_LPSTR_STR:
1437 return mono_string_new_wrapper;
1438 case MONO_MARSHAL_CONV_STR_LPTSTR:
1440 return mono_marshal_string_to_utf16;
1442 return mono_string_to_lpstr;
1444 case MONO_MARSHAL_CONV_STR_LPSTR:
1445 return mono_string_to_lpstr;
1446 case MONO_MARSHAL_CONV_STR_BSTR:
1447 return mono_string_to_bstr;
1448 case MONO_MARSHAL_CONV_BSTR_STR:
1449 return mono_string_from_bstr;
1450 case MONO_MARSHAL_CONV_STR_TBSTR:
1451 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1452 return mono_string_to_ansibstr;
1453 case MONO_MARSHAL_CONV_SB_LPSTR:
1454 return mono_string_builder_to_utf8;
1455 case MONO_MARSHAL_CONV_SB_LPTSTR:
1457 return mono_string_builder_to_utf16;
1459 return mono_string_builder_to_utf8;
1461 case MONO_MARSHAL_CONV_SB_LPWSTR:
1462 return mono_string_builder_to_utf16;
1463 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1464 return mono_array_to_savearray;
1465 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1466 return mono_array_to_lparray;
1467 case MONO_MARSHAL_FREE_LPARRAY:
1468 return mono_free_lparray;
1469 case MONO_MARSHAL_CONV_DEL_FTN:
1470 return mono_delegate_to_ftnptr;
1471 case MONO_MARSHAL_CONV_FTN_DEL:
1472 return mono_ftnptr_to_delegate;
1473 case MONO_MARSHAL_CONV_LPSTR_SB:
1474 return mono_string_utf8_to_builder;
1475 case MONO_MARSHAL_CONV_LPTSTR_SB:
1477 return mono_string_utf16_to_builder;
1479 return mono_string_utf8_to_builder;
1481 case MONO_MARSHAL_CONV_LPWSTR_SB:
1482 return mono_string_utf16_to_builder;
1483 case MONO_MARSHAL_FREE_ARRAY:
1484 return mono_marshal_free_array;
1485 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1486 return mono_string_to_byvalstr;
1487 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1488 return mono_string_to_byvalwstr;
1490 g_assert_not_reached ();
1497 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1502 case MONO_MARSHAL_CONV_BOOL_I4:
1503 mono_mb_emit_ldloc (mb, 1);
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1506 mono_mb_emit_byte (mb, CEE_STIND_I4);
1508 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1509 mono_mb_emit_ldloc (mb, 1);
1510 mono_mb_emit_ldloc (mb, 0);
1511 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1512 mono_mb_emit_byte (mb, CEE_NEG);
1513 mono_mb_emit_byte (mb, CEE_STIND_I2);
1515 case MONO_MARSHAL_CONV_STR_LPWSTR:
1516 case MONO_MARSHAL_CONV_STR_LPSTR:
1517 case MONO_MARSHAL_CONV_STR_LPTSTR:
1518 case MONO_MARSHAL_CONV_STR_BSTR:
1519 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1520 case MONO_MARSHAL_CONV_STR_TBSTR: {
1523 /* free space if free == true */
1524 mono_mb_emit_ldloc (mb, 2);
1525 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1526 mono_mb_emit_ldloc (mb, 1);
1527 mono_mb_emit_byte (mb, CEE_LDIND_I);
1528 mono_mb_emit_icall (mb, g_free);
1529 mono_mb_patch_short_branch (mb, pos);
1531 mono_mb_emit_ldloc (mb, 1);
1532 mono_mb_emit_ldloc (mb, 0);
1533 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1534 mono_mb_emit_icall (mb, conv_to_icall (conv));
1535 mono_mb_emit_byte (mb, CEE_STIND_I);
1538 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1539 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1540 case MONO_MARSHAL_CONV_DEL_FTN:
1541 mono_mb_emit_ldloc (mb, 1);
1542 mono_mb_emit_ldloc (mb, 0);
1543 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1544 mono_mb_emit_icall (mb, conv_to_icall (conv));
1545 mono_mb_emit_byte (mb, CEE_STIND_I);
1547 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1548 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1551 mono_mb_emit_ldloc (mb, 1); /* dst */
1552 mono_mb_emit_ldloc (mb, 0);
1553 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1554 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1555 mono_mb_emit_icall (mb, conv_to_icall (conv));
1558 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1559 MonoClass *eklass = NULL;
1562 if (type->type == MONO_TYPE_SZARRAY) {
1563 eklass = type->data.klass;
1565 g_assert_not_reached ();
1568 if (eklass->valuetype)
1569 esize = mono_class_native_size (eklass, NULL);
1571 esize = sizeof (gpointer);
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1575 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1577 if (eklass->blittable) {
1578 mono_mb_emit_ldloc (mb, 1);
1579 mono_mb_emit_ldloc (mb, 0);
1580 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1581 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1582 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1583 mono_mb_emit_byte (mb, CEE_PREFIX1);
1584 mono_mb_emit_byte (mb, CEE_CPBLK);
1586 int array_var, src_var, dst_var, index_var;
1587 guint32 label2, label3;
1589 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1590 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1591 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1594 mono_mb_emit_ldloc (mb, 0);
1595 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1596 mono_mb_emit_stloc (mb, array_var);
1598 /* save the old src pointer */
1599 mono_mb_emit_ldloc (mb, 0);
1600 mono_mb_emit_stloc (mb, src_var);
1601 /* save the old dst pointer */
1602 mono_mb_emit_ldloc (mb, 1);
1603 mono_mb_emit_stloc (mb, dst_var);
1605 /* Emit marshalling loop */
1606 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1607 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1608 mono_mb_emit_stloc (mb, index_var);
1611 label2 = mono_mb_get_label (mb);
1612 mono_mb_emit_ldloc (mb, index_var);
1613 mono_mb_emit_ldloc (mb, array_var);
1614 mono_mb_emit_byte (mb, CEE_LDLEN);
1615 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1618 mono_mb_emit_ldloc (mb, array_var);
1619 mono_mb_emit_ldloc (mb, index_var);
1620 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1621 mono_mb_emit_stloc (mb, 0);
1623 /* dst is already set */
1625 /* Do the conversion */
1626 emit_struct_conv (mb, eklass, FALSE);
1629 mono_mb_emit_add_to_local (mb, index_var, 1);
1631 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1633 mono_mb_patch_branch (mb, label3);
1635 /* restore the old src pointer */
1636 mono_mb_emit_ldloc (mb, src_var);
1637 mono_mb_emit_stloc (mb, 0);
1638 /* restore the old dst pointer */
1639 mono_mb_emit_ldloc (mb, dst_var);
1640 mono_mb_emit_stloc (mb, 1);
1643 mono_mb_patch_branch (mb, pos);
1646 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1647 mono_mb_emit_ldloc (mb, 0);
1648 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1649 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1651 mono_mb_emit_ldloc (mb, 1);
1652 mono_mb_emit_ldloc (mb, 0);
1653 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1654 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1655 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1656 mono_mb_patch_short_branch (mb, pos);
1659 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1660 int src_var, dst_var;
1662 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1663 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1665 mono_mb_emit_ldloc (mb, 0);
1666 mono_mb_emit_byte (mb, CEE_LDIND_I);
1667 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1669 /* save the old src pointer */
1670 mono_mb_emit_ldloc (mb, 0);
1671 mono_mb_emit_stloc (mb, src_var);
1672 /* save the old dst pointer */
1673 mono_mb_emit_ldloc (mb, 1);
1674 mono_mb_emit_stloc (mb, dst_var);
1676 /* src = pointer to object data */
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_I);
1679 mono_mb_emit_icon (mb, sizeof (MonoObject));
1680 mono_mb_emit_byte (mb, CEE_ADD);
1681 mono_mb_emit_stloc (mb, 0);
1683 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1685 /* restore the old src pointer */
1686 mono_mb_emit_ldloc (mb, src_var);
1687 mono_mb_emit_stloc (mb, 0);
1688 /* restore the old dst pointer */
1689 mono_mb_emit_ldloc (mb, dst_var);
1690 mono_mb_emit_stloc (mb, 1);
1692 mono_mb_patch_branch (mb, pos);
1697 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1698 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1699 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1700 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1702 #endif /* DISABLE_COM */
1704 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_byte (mb, CEE_LDIND_I);
1709 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1710 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1711 mono_mb_patch_branch (mb, pos);
1713 /* Pull the handle field from SafeHandle */
1714 mono_mb_emit_ldloc (mb, 1);
1715 mono_mb_emit_ldloc (mb, 0);
1716 mono_mb_emit_byte (mb, CEE_LDIND_I);
1717 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1718 mono_mb_emit_byte (mb, CEE_LDIND_I);
1719 mono_mb_emit_byte (mb, CEE_STIND_I);
1723 case MONO_MARSHAL_CONV_HANDLEREF: {
1724 mono_mb_emit_ldloc (mb, 1);
1725 mono_mb_emit_ldloc (mb, 0);
1726 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1727 mono_mb_emit_byte (mb, CEE_ADD);
1728 mono_mb_emit_byte (mb, CEE_LDIND_I);
1729 mono_mb_emit_byte (mb, CEE_STIND_I);
1734 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1735 MonoException *exc = mono_get_exception_not_implemented (msg);
1736 g_warning ("%s", msg);
1738 mono_raise_exception (exc);
1744 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1745 MonoMarshalNative string_encoding)
1747 MonoMarshalType *info;
1751 emit_struct_conv(mb, klass->parent, to_object);
1753 info = mono_marshal_load_type_info (klass);
1755 if (info->native_size == 0)
1758 if (klass->blittable) {
1759 int msize = mono_class_value_size (klass, NULL);
1760 g_assert (msize == info->native_size);
1761 mono_mb_emit_ldloc (mb, 1);
1762 mono_mb_emit_ldloc (mb, 0);
1763 mono_mb_emit_icon (mb, msize);
1764 mono_mb_emit_byte (mb, CEE_PREFIX1);
1765 mono_mb_emit_byte (mb, CEE_CPBLK);
1767 mono_mb_emit_add_to_local (mb, 0, msize);
1768 mono_mb_emit_add_to_local (mb, 1, msize);
1772 if (klass != mono_defaults.safehandle_class) {
1773 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1774 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1775 mono_type_full_name (&klass->byval_arg));
1776 mono_mb_emit_exception_marshal_directive (mb, msg);
1781 for (i = 0; i < info->num_fields; i++) {
1782 MonoMarshalNative ntype;
1783 MonoMarshalConv conv;
1784 MonoType *ftype = info->fields [i].field->type;
1787 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1789 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1792 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1795 msize = klass->instance_size - info->fields [i].field->offset;
1796 usize = info->native_size - info->fields [i].offset;
1798 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1799 usize = info->fields [i + 1].offset - info->fields [i].offset;
1802 if (klass != mono_defaults.safehandle_class){
1804 * FIXME: Should really check for usize==0 and msize>0, but we apply
1805 * the layout to the managed structure as well.
1808 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1809 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1810 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1811 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1812 "reference field at the same offset as another field.",
1813 mono_type_full_name (&klass->byval_arg));
1818 case MONO_MARSHAL_CONV_NONE: {
1821 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1822 ftype->type == MONO_TYPE_U) {
1823 mono_mb_emit_ldloc (mb, 1);
1824 mono_mb_emit_ldloc (mb, 0);
1825 mono_mb_emit_byte (mb, CEE_LDIND_I);
1826 mono_mb_emit_byte (mb, CEE_STIND_I);
1837 case MONO_TYPE_BOOLEAN:
1840 case MONO_TYPE_CHAR:
1846 mono_mb_emit_ldloc (mb, 1);
1847 mono_mb_emit_ldloc (mb, 0);
1848 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1850 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1851 mono_mb_emit_byte (mb, CEE_STIND_I2);
1853 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1854 mono_mb_emit_byte (mb, CEE_STIND_I1);
1857 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1858 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1861 case MONO_TYPE_VALUETYPE: {
1862 int src_var, dst_var;
1864 if (ftype->data.klass->enumtype) {
1865 ftype = mono_class_enum_basetype (ftype->data.klass);
1869 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1870 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1872 /* save the old src pointer */
1873 mono_mb_emit_ldloc (mb, 0);
1874 mono_mb_emit_stloc (mb, src_var);
1875 /* save the old dst pointer */
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_stloc (mb, dst_var);
1879 emit_struct_conv (mb, ftype->data.klass, to_object);
1881 /* restore the old src pointer */
1882 mono_mb_emit_ldloc (mb, src_var);
1883 mono_mb_emit_stloc (mb, 0);
1884 /* restore the old dst pointer */
1885 mono_mb_emit_ldloc (mb, dst_var);
1886 mono_mb_emit_stloc (mb, 1);
1889 case MONO_TYPE_OBJECT: {
1892 static MonoMethod *variant_clear = NULL;
1893 static MonoMethod *get_object_for_native_variant = NULL;
1896 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1897 if (!get_object_for_native_variant)
1898 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1899 mono_mb_emit_ldloc (mb, 1);
1900 mono_mb_emit_ldloc (mb, 0);
1901 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1902 mono_mb_emit_byte (mb, CEE_STIND_REF);
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1908 static MonoMethod *get_native_variant_for_object = NULL;
1910 if (!get_native_variant_for_object)
1911 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1919 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1920 mono_mb_emit_exception_marshal_directive (mb, msg);
1926 g_warning ("marshaling type %02x not implemented", ftype->type);
1927 g_assert_not_reached ();
1932 int src_var, dst_var;
1934 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1935 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1937 /* save the old src pointer */
1938 mono_mb_emit_ldloc (mb, 0);
1939 mono_mb_emit_stloc (mb, src_var);
1940 /* save the old dst pointer */
1941 mono_mb_emit_ldloc (mb, 1);
1942 mono_mb_emit_stloc (mb, dst_var);
1945 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1947 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1949 /* restore the old src pointer */
1950 mono_mb_emit_ldloc (mb, src_var);
1951 mono_mb_emit_stloc (mb, 0);
1952 /* restore the old dst pointer */
1953 mono_mb_emit_ldloc (mb, dst_var);
1954 mono_mb_emit_stloc (mb, 1);
1959 mono_mb_emit_add_to_local (mb, 0, usize);
1960 mono_mb_emit_add_to_local (mb, 1, msize);
1962 mono_mb_emit_add_to_local (mb, 0, msize);
1963 mono_mb_emit_add_to_local (mb, 1, usize);
1969 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1971 emit_struct_conv_full (mb, klass, to_object, -1);
1975 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1977 /* Call DestroyStructure */
1978 /* FIXME: Only do this if needed */
1979 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1980 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1981 mono_mb_emit_ldloc (mb, struct_var);
1982 mono_mb_emit_icall (mb, mono_struct_delete_old);
1986 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1988 int pos_noabort, pos_noex;
1990 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1991 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1992 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1994 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1995 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1997 mono_mb_emit_icall (mb, checkpoint_func);
1998 /* Throw the exception returned by the checkpoint function, if any */
1999 mono_mb_emit_byte (mb, CEE_DUP);
2000 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2001 mono_mb_emit_byte (mb, CEE_THROW);
2002 mono_mb_patch_branch (mb, pos_noex);
2003 mono_mb_emit_byte (mb, CEE_POP);
2005 mono_mb_patch_branch (mb, pos_noabort);
2009 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2011 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2014 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2018 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2020 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2024 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2026 emit_thread_interrupt_checkpoint (mb);
2030 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2032 emit_thread_force_interrupt_checkpoint (mb);
2035 #endif /* DISABLE_JIT */
2037 static MonoAsyncResult *
2038 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2040 MonoMethodMessage *msg;
2041 MonoDelegate *async_callback;
2042 MonoMulticastDelegate *mcast_delegate;
2046 MonoMethod *method = NULL, *method2 = NULL;
2048 g_assert (delegate);
2049 mcast_delegate = (MonoMulticastDelegate *) delegate;
2050 if (mcast_delegate->prev != NULL)
2051 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2053 #ifndef DISABLE_REMOTING
2054 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2056 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2057 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2059 /* If the target is a proxy, make a direct call. Is proxy's work
2060 // to make the call asynchronous.
2062 MonoAsyncResult *ares;
2064 MonoArray *out_args;
2065 method = delegate->method;
2067 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2068 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2069 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2070 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2071 MONO_OBJECT_SETREF (msg, async_result, ares);
2072 msg->call_type = CallType_BeginInvoke;
2075 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2077 mono_raise_exception ((MonoException *) exc);
2083 klass = delegate->object.vtable->klass;
2085 method = mono_get_delegate_invoke (klass);
2086 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2089 g_assert (method != NULL);
2091 im = mono_get_delegate_invoke (method->klass);
2092 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2094 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2100 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2102 int i, params_var, tmp_var;
2104 /* allocate local (pointer) *params[] */
2105 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2106 /* allocate local (pointer) tmp */
2107 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2109 /* alloate space on stack to store an array of pointers to the arguments */
2110 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2111 mono_mb_emit_byte (mb, CEE_PREFIX1);
2112 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2113 mono_mb_emit_stloc (mb, params_var);
2116 mono_mb_emit_ldloc (mb, params_var);
2117 mono_mb_emit_stloc (mb, tmp_var);
2119 if (save_this && sig->hasthis) {
2120 mono_mb_emit_ldloc (mb, tmp_var);
2121 mono_mb_emit_ldarg_addr (mb, 0);
2122 mono_mb_emit_byte (mb, CEE_STIND_I);
2123 /* tmp = tmp + sizeof (gpointer) */
2124 if (sig->param_count)
2125 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2129 for (i = 0; i < sig->param_count; i++) {
2130 mono_mb_emit_ldloc (mb, tmp_var);
2131 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2132 mono_mb_emit_byte (mb, CEE_STIND_I);
2133 /* tmp = tmp + sizeof (gpointer) */
2134 if (i < (sig->param_count - 1))
2135 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2141 #endif /* DISABLE_JIT */
2144 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2148 GString *res = g_string_new ("");
2151 g_string_append (res, prefix);
2152 g_string_append_c (res, '_');
2155 mono_type_get_desc (res, sig->ret, FALSE);
2158 g_string_append (res, "__this__");
2160 for (i = 0; i < sig->param_count; ++i) {
2161 g_string_append_c (res, '_');
2162 mono_type_get_desc (res, sig->params [i], FALSE);
2165 g_string_free (res, FALSE);
2170 * mono_marshal_get_string_encoding:
2172 * Return the string encoding which should be used for a given parameter.
2174 static MonoMarshalNative
2175 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2177 /* First try the parameter marshal info */
2179 if (spec->native == MONO_NATIVE_LPARRAY) {
2180 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2181 return spec->data.array_data.elem_type;
2184 return spec->native;
2188 return MONO_NATIVE_LPSTR;
2190 /* Then try the method level marshal info */
2191 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2192 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2193 return MONO_NATIVE_LPSTR;
2194 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2195 return MONO_NATIVE_LPWSTR;
2196 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2198 return MONO_NATIVE_LPWSTR;
2200 return MONO_NATIVE_LPSTR;
2203 return MONO_NATIVE_LPSTR;
2207 static MonoMarshalConv
2208 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2210 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2213 case MONO_NATIVE_LPWSTR:
2214 return MONO_MARSHAL_CONV_STR_LPWSTR;
2215 case MONO_NATIVE_LPSTR:
2216 case MONO_NATIVE_VBBYREFSTR:
2217 return MONO_MARSHAL_CONV_STR_LPSTR;
2218 case MONO_NATIVE_LPTSTR:
2219 return MONO_MARSHAL_CONV_STR_LPTSTR;
2220 case MONO_NATIVE_BSTR:
2221 return MONO_MARSHAL_CONV_STR_BSTR;
2227 static MonoMarshalConv
2228 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2230 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2233 case MONO_NATIVE_LPWSTR:
2234 return MONO_MARSHAL_CONV_SB_LPWSTR;
2236 case MONO_NATIVE_LPSTR:
2237 return MONO_MARSHAL_CONV_SB_LPSTR;
2239 case MONO_NATIVE_LPTSTR:
2240 return MONO_MARSHAL_CONV_SB_LPTSTR;
2247 static MonoMarshalConv
2248 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2250 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2255 case MONO_NATIVE_LPWSTR:
2257 return MONO_MARSHAL_CONV_LPWSTR_STR;
2258 case MONO_NATIVE_LPSTR:
2259 case MONO_NATIVE_VBBYREFSTR:
2260 return MONO_MARSHAL_CONV_LPSTR_STR;
2261 case MONO_NATIVE_LPTSTR:
2262 return MONO_MARSHAL_CONV_LPTSTR_STR;
2263 case MONO_NATIVE_BSTR:
2264 return MONO_MARSHAL_CONV_BSTR_STR;
2270 static MonoMarshalConv
2271 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2273 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2278 case MONO_NATIVE_LPWSTR:
2280 * mono_string_builder_to_utf16 does not allocate a
2281 * new buffer, so no need to free it.
2284 return MONO_MARSHAL_CONV_LPWSTR_SB;
2285 case MONO_NATIVE_LPSTR:
2286 return MONO_MARSHAL_CONV_LPSTR_SB;
2288 case MONO_NATIVE_LPTSTR:
2289 return MONO_MARSHAL_CONV_LPTSTR_SB;
2297 * Return whenever a field of a native structure or an array member needs to
2301 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2303 MonoMarshalNative encoding;
2306 case MONO_TYPE_VALUETYPE:
2307 /* FIXME: Optimize this */
2309 case MONO_TYPE_OBJECT:
2310 case MONO_TYPE_CLASS:
2311 if (t->data.klass == mono_defaults.stringbuilder_class) {
2313 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2317 case MONO_TYPE_STRING:
2318 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2319 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2326 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2329 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2332 mono_marshal_lock ();
2335 g_hash_table_new (hash_func, equal_func);
2336 mono_memory_barrier ();
2339 mono_marshal_unlock ();
2345 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2347 return get_cache (var, hash_func, equal_func);
2351 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2355 mono_marshal_lock ();
2356 res = g_hash_table_lookup (cache, key);
2357 mono_marshal_unlock ();
2364 * Create a MonoMethod from MB, set INFO as wrapper info.
2367 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2368 int max_stack, WrapperInfo *info)
2372 res = mono_mb_create_method (mb, sig, max_stack);
2374 mono_marshal_set_wrapper_info (res, info);
2378 /* Create the method from the builder and place it in the cache */
2380 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2381 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2382 int max_stack, WrapperInfo *info, gboolean *out_found)
2389 mono_marshal_lock ();
2390 res = g_hash_table_lookup (cache, key);
2391 mono_marshal_unlock ();
2394 newm = mono_mb_create_method (mb, sig, max_stack);
2395 mono_marshal_lock ();
2396 res = g_hash_table_lookup (cache, key);
2399 g_hash_table_insert (cache, key, res);
2401 mono_marshal_set_wrapper_info (res, info);
2403 mono_marshal_set_wrapper_info (res, key);
2404 mono_marshal_unlock ();
2408 mono_marshal_unlock ();
2409 mono_free_method (newm);
2417 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2418 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2421 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2425 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2428 int wrapper_type = wrapper->wrapper_type;
2431 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2434 switch (wrapper_type) {
2435 case MONO_WRAPPER_REMOTING_INVOKE:
2436 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2437 case MONO_WRAPPER_XDOMAIN_INVOKE:
2438 case MONO_WRAPPER_SYNCHRONIZED:
2439 case MONO_WRAPPER_UNBOX:
2440 res = mono_marshal_get_wrapper_info (wrapper);
2443 if (wrapper->is_inflated) {
2447 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2448 * contains an uninflated method.
2450 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2451 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2455 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2456 info = mono_marshal_get_wrapper_info (wrapper);
2457 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2458 return info->d.managed_to_native.method;
2461 case MONO_WRAPPER_RUNTIME_INVOKE:
2462 info = mono_marshal_get_wrapper_info (wrapper);
2463 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2464 return info->d.runtime_invoke.method;
2473 * mono_marshal_get_wrapper_info:
2475 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2476 * returned depends on the wrapper type. It is usually a method, a class, or a
2477 * WrapperInfo structure.
2480 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2482 g_assert (wrapper->wrapper_type);
2484 return mono_method_get_wrapper_data (wrapper, 1);
2488 * mono_marshal_set_wrapper_info:
2490 * Store an arbitrary pointer inside the wrapper which is retrievable by
2491 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2492 * wrapper (method->wrapper_type).
2495 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2499 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2502 datav = ((MonoMethodWrapper *)method)->method_data;
2507 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2511 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2512 info->subtype = subtype;
2517 * get_wrapper_target_class:
2519 * Return the class where a wrapper method should be placed.
2522 get_wrapper_target_class (MonoImage *image)
2529 * - can't put all wrappers into an mscorlib class, because they reference
2530 * metadata (signature) so they should be put into the same image as the
2531 * method they wrap, so they are unloaded together.
2532 * - putting them into a class with a type initalizer could cause the
2533 * initializer to be executed which can be a problem if the wrappers are
2535 * - putting them into an inflated class can cause problems if the the
2536 * class is deleted because it references an image which is unloaded.
2537 * To avoid these problems, we put the wrappers into the <Module> class of
2540 if (image_is_dynamic (image)) {
2541 klass = ((MonoDynamicImage*)image)->wrappers_type;
2543 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2544 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2552 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2553 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2557 * check_generic_wrapper_cache:
2559 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2560 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2561 * generic method definition.
2564 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2567 MonoMethod *inst, *def;
2568 MonoGenericContext *ctx;
2570 g_assert (orig_method->is_inflated);
2571 ctx = mono_method_get_context (orig_method);
2574 * Look for the instance
2576 res = mono_marshal_find_in_cache (cache, key);
2581 * Look for the definition
2583 def = mono_marshal_find_in_cache (cache, def_key);
2586 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2587 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2589 mono_memory_barrier ();
2590 mono_marshal_lock ();
2591 res = g_hash_table_lookup (cache, key);
2593 g_hash_table_insert (cache, key, inst);
2596 mono_marshal_unlock ();
2603 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2606 MonoMethod *inst, *res;
2609 * We use the same cache for the generic definition and the instances.
2611 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2612 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2613 mono_memory_barrier ();
2614 mono_marshal_lock ();
2615 res = g_hash_table_lookup (cache, key);
2617 g_hash_table_insert (cache, key, inst);
2620 mono_marshal_unlock ();
2625 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2629 MonoMethod *inst, *def;
2632 * Look for the instance
2634 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2639 * Look for the definition
2641 def = mono_marshal_find_in_cache (cache, def_method->klass);
2643 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2644 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2647 mono_memory_barrier ();
2648 mono_marshal_lock ();
2649 res = g_hash_table_lookup (cache, orig_method->klass);
2651 g_hash_table_insert (cache, orig_method->klass, inst);
2654 mono_marshal_unlock ();
2661 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2664 MonoMethod *inst, *res;
2667 * We use the same cache for the generic definition and the instances.
2669 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2670 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2672 mono_memory_barrier ();
2673 mono_marshal_lock ();
2674 res = g_hash_table_lookup (cache, orig_method->klass);
2676 g_hash_table_insert (cache, orig_method->klass, inst);
2679 mono_marshal_unlock ();
2684 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2686 MonoMethodSignature *sig;
2687 MonoMethodBuilder *mb;
2692 MonoGenericContext *ctx = NULL;
2693 MonoMethod *orig_method = NULL;
2695 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2696 !strcmp (method->name, "BeginInvoke"));
2699 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2701 if (method->is_inflated) {
2702 orig_method = method;
2703 ctx = &((MonoMethodInflated*)method)->context;
2704 method = ((MonoMethodInflated*)method)->declaring;
2707 sig = mono_signature_no_pinvoke (method);
2713 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2714 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2718 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2719 (GHashFunc)mono_signature_hash,
2720 (GCompareFunc)mono_metadata_signature_equal);
2721 if ((res = mono_marshal_find_in_cache (cache, sig)))
2725 g_assert (sig->hasthis);
2727 name = mono_signature_to_name (sig, "begin_invoke");
2729 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2731 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2735 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2737 mono_mb_emit_ldarg (mb, 0);
2738 mono_mb_emit_ldloc (mb, params_var);
2739 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2740 mono_mb_emit_byte (mb, CEE_RET);
2745 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2746 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2748 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2756 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2758 MonoDomain *domain = mono_domain_get ();
2759 MonoAsyncResult *ares;
2760 MonoMethod *method = NULL;
2761 MonoMethodSignature *sig;
2762 MonoMethodMessage *msg;
2763 MonoObject *res, *exc;
2764 MonoArray *out_args;
2767 g_assert (delegate);
2769 if (!delegate->method_info) {
2770 g_assert (delegate->method);
2771 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2774 if (!delegate->method_info || !delegate->method_info->method)
2775 g_assert_not_reached ();
2777 klass = delegate->object.vtable->klass;
2779 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2780 g_assert (method != NULL);
2782 sig = mono_signature_no_pinvoke (method);
2784 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2786 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2788 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."));
2792 if (ares->async_delegate != (MonoObject*)delegate) {
2793 mono_raise_exception (mono_get_exception_invalid_operation (
2794 "The IAsyncResult object provided does not match this delegate."));
2798 #ifndef DISABLE_REMOTING
2799 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2800 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2801 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2802 mono_message_init (domain, msg, delegate->method_info, NULL);
2803 msg->call_type = CallType_EndInvoke;
2804 MONO_OBJECT_SETREF (msg, async_result, ares);
2805 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2809 res = mono_thread_pool_finish (ares, &out_args, &exc);
2813 if (((MonoException*)exc)->stack_trace) {
2814 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2816 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2818 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2821 mono_raise_exception ((MonoException*)exc);
2824 mono_method_return_message_restore (method, params, out_args);
2831 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2833 MonoType *t = mono_type_get_underlying_type (return_type);
2835 if (return_type->byref)
2836 return_type = &mono_defaults.int_class->byval_arg;
2839 case MONO_TYPE_VOID:
2840 g_assert_not_reached ();
2843 case MONO_TYPE_STRING:
2844 case MONO_TYPE_CLASS:
2845 case MONO_TYPE_OBJECT:
2846 case MONO_TYPE_ARRAY:
2847 case MONO_TYPE_SZARRAY:
2851 case MONO_TYPE_BOOLEAN:
2854 case MONO_TYPE_CHAR:
2864 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2865 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2867 case MONO_TYPE_GENERICINST:
2868 if (!mono_type_generic_inst_is_valuetype (t))
2871 case MONO_TYPE_VALUETYPE: {
2872 MonoClass *klass = mono_class_from_mono_type (return_type);
2873 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2874 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2878 case MONO_TYPE_MVAR: {
2879 MonoClass *klass = mono_class_from_mono_type (return_type);
2880 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2884 g_warning ("type 0x%x not handled", return_type->type);
2885 g_assert_not_reached ();
2888 mono_mb_emit_byte (mb, CEE_RET);
2891 #endif /* DISABLE_JIT */
2894 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2896 MonoMethodSignature *sig;
2897 MonoMethodBuilder *mb;
2902 MonoGenericContext *ctx = NULL;
2903 MonoMethod *orig_method = NULL;
2905 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2906 !strcmp (method->name, "EndInvoke"));
2909 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2911 if (method->is_inflated) {
2912 orig_method = method;
2913 ctx = &((MonoMethodInflated*)method)->context;
2914 method = ((MonoMethodInflated*)method)->declaring;
2917 sig = mono_signature_no_pinvoke (method);
2923 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2924 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2928 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2929 (GHashFunc)mono_signature_hash,
2930 (GCompareFunc)mono_metadata_signature_equal);
2931 if ((res = mono_marshal_find_in_cache (cache, sig)))
2935 g_assert (sig->hasthis);
2937 name = mono_signature_to_name (sig, "end_invoke");
2939 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2941 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2945 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2947 mono_mb_emit_ldarg (mb, 0);
2948 mono_mb_emit_ldloc (mb, params_var);
2949 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2951 if (sig->ret->type == MONO_TYPE_VOID) {
2952 mono_mb_emit_byte (mb, CEE_POP);
2953 mono_mb_emit_byte (mb, CEE_RET);
2955 mono_mb_emit_restore_result (mb, sig->ret);
2960 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2961 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2963 res = mono_mb_create_and_cache (cache, sig,
2964 mb, sig, sig->param_count + 16);
2973 MonoMethodSignature *sig;
2975 } SignaturePointerPair;
2978 signature_pointer_pair_hash (gconstpointer data)
2980 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2982 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2986 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2988 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2989 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
2993 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
2995 SignaturePointerPair *pair = (SignaturePointerPair*)key;
2997 return pair->pointer == user_data;
3001 free_signature_pointer_pair (SignaturePointerPair *pair)
3007 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3009 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3011 MonoMethodBuilder *mb;
3014 gpointer cache_key = NULL;
3015 SignaturePointerPair key;
3016 SignaturePointerPair *new_key;
3017 int local_prev, local_target;
3020 MonoClass *target_class = NULL;
3021 gboolean closed_over_null = FALSE;
3022 MonoGenericContext *ctx = NULL;
3023 MonoGenericContainer *container = NULL;
3024 MonoMethod *orig_method = NULL;
3026 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3029 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3030 !strcmp (method->name, "Invoke"));
3032 invoke_sig = sig = mono_signature_no_pinvoke (method);
3035 * If the delegate target is null, and the target method is not static, a virtual
3036 * call is made to that method with the first delegate argument as this. This is
3037 * a non-documented .NET feature.
3040 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3041 if (target_method->is_inflated) {
3042 MonoType *target_type;
3044 g_assert (method->signature->hasthis);
3045 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3046 mono_method_get_context (method));
3047 target_class = mono_class_from_mono_type (target_type);
3049 target_class = target_method->klass;
3052 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3055 if (static_method_with_first_arg_bound) {
3056 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3057 g_assert (!callvirt);
3058 invoke_sig = mono_method_signature (target_method);
3062 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3064 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3065 orig_method = method;
3066 ctx = &((MonoMethodInflated*)method)->context;
3067 method = ((MonoMethodInflated*)method)->declaring;
3069 container = mono_method_get_generic_container (method);
3071 container = method->klass->generic_container;
3072 g_assert (container);
3074 invoke_sig = sig = mono_signature_no_pinvoke (method);
3081 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3082 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3085 cache_key = method->klass;
3086 } else if (static_method_with_first_arg_bound) {
3087 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3088 (GHashFunc)mono_signature_hash,
3089 (GCompareFunc)mono_metadata_signature_equal);
3091 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3093 res = mono_marshal_find_in_cache (cache, invoke_sig);
3096 cache_key = invoke_sig;
3097 } else if (callvirt) {
3098 GHashTable **cache_ptr;
3100 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3102 /* We need to cache the signature+method pair */
3103 mono_marshal_lock ();
3105 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3107 key.sig = invoke_sig;
3108 key.pointer = target_method;
3109 res = g_hash_table_lookup (cache, &key);
3110 mono_marshal_unlock ();
3114 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3115 (GHashFunc)mono_signature_hash,
3116 (GCompareFunc)mono_metadata_signature_equal);
3117 res = mono_marshal_find_in_cache (cache, sig);
3123 static_sig = signature_dup (method->klass->image, sig);
3124 static_sig->hasthis = 0;
3125 if (!static_method_with_first_arg_bound)
3126 invoke_sig = static_sig;
3128 if (static_method_with_first_arg_bound)
3129 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3130 else if (closed_over_null)
3131 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3133 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3135 name = mono_signature_to_name (invoke_sig, "invoke");
3137 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3139 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3143 /* allocate local 0 (object) */
3144 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3145 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3147 g_assert (sig->hasthis);
3151 * prev.Invoke( args .. );
3152 * return this.<target>( args .. );
3155 /* this wrapper can be used in unmanaged-managed transitions */
3156 emit_thread_interrupt_checkpoint (mb);
3158 /* get this->prev */
3159 mono_mb_emit_ldarg (mb, 0);
3160 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3161 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3162 mono_mb_emit_stloc (mb, local_prev);
3163 mono_mb_emit_ldloc (mb, local_prev);
3165 /* if prev != null */
3166 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3170 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3171 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3173 mono_mb_emit_ldloc (mb, local_prev);
3174 for (i = 0; i < sig->param_count; i++)
3175 mono_mb_emit_ldarg (mb, i + 1);
3178 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3179 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3181 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3183 if (sig->ret->type != MONO_TYPE_VOID)
3184 mono_mb_emit_byte (mb, CEE_POP);
3186 /* continued or prev == null */
3187 mono_mb_patch_branch (mb, pos0);
3189 /* get this->target */
3190 mono_mb_emit_ldarg (mb, 0);
3191 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3192 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3193 mono_mb_emit_stloc (mb, local_target);
3195 /*static methods with bound first arg can have null target and still be bound*/
3196 if (!static_method_with_first_arg_bound) {
3197 /* if target != null */
3198 mono_mb_emit_ldloc (mb, local_target);
3199 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3201 /* then call this->method_ptr nonstatic */
3204 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3206 mono_mb_emit_ldloc (mb, local_target);
3207 for (i = 0; i < sig->param_count; ++i)
3208 mono_mb_emit_ldarg (mb, i + 1);
3209 mono_mb_emit_ldarg (mb, 0);
3210 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3211 mono_mb_emit_byte (mb, CEE_LDIND_I );
3212 mono_mb_emit_op (mb, CEE_CALLI, sig);
3214 mono_mb_emit_byte (mb, CEE_RET);
3217 /* else [target == null] call this->method_ptr static */
3218 mono_mb_patch_branch (mb, pos0);
3222 if (!closed_over_null) {
3223 mono_mb_emit_ldarg (mb, 1);
3224 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3225 for (i = 1; i < sig->param_count; ++i)
3226 mono_mb_emit_ldarg (mb, i + 1);
3227 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3229 mono_mb_emit_byte (mb, CEE_LDNULL);
3230 for (i = 0; i < sig->param_count; ++i)
3231 mono_mb_emit_ldarg (mb, i + 1);
3232 mono_mb_emit_op (mb, CEE_CALL, target_method);
3235 if (static_method_with_first_arg_bound) {
3236 mono_mb_emit_ldloc (mb, local_target);
3237 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3238 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3240 for (i = 0; i < sig->param_count; ++i)
3241 mono_mb_emit_ldarg (mb, i + 1);
3242 mono_mb_emit_ldarg (mb, 0);
3243 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3244 mono_mb_emit_byte (mb, CEE_LDIND_I );
3245 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3248 mono_mb_emit_byte (mb, CEE_RET);
3250 mb->skip_visibility = 1;
3251 #endif /* DISABLE_JIT */
3256 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3257 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3258 } else if (callvirt) {
3259 new_key = g_new0 (SignaturePointerPair, 1);
3262 info = mono_wrapper_info_create (mb, subtype);
3264 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3268 info = mono_wrapper_info_create (mb, subtype);
3270 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3278 * the returned method invokes all methods in a multicast delegate.
3281 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3283 gboolean callvirt = FALSE;
3284 gboolean static_method_with_first_arg_bound = FALSE;
3285 MonoMethod *target_method = NULL;
3286 MonoMethodSignature *sig;
3288 sig = mono_signature_no_pinvoke (method);
3290 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3292 target_method = del->method;
3295 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3296 static_method_with_first_arg_bound = TRUE;
3297 target_method = del->method;
3300 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3304 * signature_dup_add_this:
3306 * Make a copy of @sig, adding an explicit this argument.
3308 static MonoMethodSignature*
3309 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3311 MonoMethodSignature *res;
3314 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3315 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3316 res->param_count = sig->param_count + 1;
3317 res->hasthis = FALSE;
3318 for (i = sig->param_count - 1; i >= 0; i --)
3319 res->params [i + 1] = sig->params [i];
3320 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3326 MonoMethodSignature *ctor_sig;
3327 MonoMethodSignature *sig;
3330 /* protected by the marshal lock, contains CtorSigPair pointers */
3331 static GSList *strsig_list = NULL;
3333 static MonoMethodSignature *
3334 lookup_string_ctor_signature (MonoMethodSignature *sig)
3336 MonoMethodSignature *callsig;
3340 mono_marshal_lock ();
3342 for (item = strsig_list; item; item = item->next) {
3344 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3345 * because it is lock-free.
3347 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3352 mono_marshal_unlock ();
3356 static MonoMethodSignature *
3357 add_string_ctor_signature (MonoMethod *method)
3359 MonoMethodSignature *callsig;
3362 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3363 callsig->ret = &mono_defaults.string_class->byval_arg;
3364 cs = g_new (CtorSigPair, 1);
3366 cs->ctor_sig = mono_method_signature (method);
3368 mono_marshal_lock ();
3369 strsig_list = g_slist_prepend (strsig_list, cs);
3370 mono_marshal_unlock ();
3375 * mono_marshal_get_string_ctor_signature:
3377 * Return the modified signature used by string ctors (they return the newly created
3380 MonoMethodSignature*
3381 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3383 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3385 sig = add_string_ctor_signature (method);
3391 get_runtime_invoke_type (MonoType *t, gboolean ret)
3394 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3396 /* Can't share this with 'I' as that needs another indirection */
3397 return &mono_defaults.int_class->this_arg;
3400 if (MONO_TYPE_IS_REFERENCE (t))
3401 return &mono_defaults.object_class->byval_arg;
3404 /* The result needs to be boxed */
3409 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3412 return &mono_defaults.sbyte_class->byval_arg;
3414 return &mono_defaults.int16_class->byval_arg;
3416 return &mono_defaults.int32_class->byval_arg;
3419 return &mono_defaults.int64_class->byval_arg;
3420 case MONO_TYPE_BOOLEAN:
3421 return &mono_defaults.byte_class->byval_arg;
3422 case MONO_TYPE_CHAR:
3423 return &mono_defaults.uint16_class->byval_arg;
3426 return &mono_defaults.int_class->byval_arg;
3427 case MONO_TYPE_VALUETYPE:
3428 if (t->data.klass->enumtype) {
3429 t = mono_class_enum_basetype (t->data.klass);
3439 * mono_marshal_get_runtime_invoke_sig:
3441 * Return a common signature used for sharing runtime invoke wrappers.
3443 static MonoMethodSignature*
3444 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3446 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3449 res->generic_param_count = 0;
3450 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3451 for (i = 0; i < res->param_count; ++i)
3452 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3458 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3460 /* Can't share wrappers which return a vtype since it needs to be boxed */
3461 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
3464 return mono_metadata_signature_equal (sig1, sig2);
3472 * Emit the call to the wrapper method from a runtime invoke wrapper.
3475 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3476 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3478 gboolean virtual, gboolean need_direct_wrapper)
3480 static MonoString *string_dummy = NULL;
3482 int *tmp_nullable_locals;
3483 gboolean void_ret = FALSE;
3485 /* to make it work with our special string constructors */
3486 if (!string_dummy) {
3487 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3488 string_dummy = mono_string_new_wrapper ("dummy");
3492 g_assert (sig->hasthis);
3493 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3497 if (method->string_ctor) {
3498 if (mono_gc_is_moving ()) {
3499 mono_mb_emit_ptr (mb, &string_dummy);
3500 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3502 mono_mb_emit_ptr (mb, string_dummy);
3505 mono_mb_emit_ldarg (mb, 0);
3509 tmp_nullable_locals = g_new0 (int, sig->param_count);
3511 for (i = 0; i < sig->param_count; i++) {
3512 MonoType *t = sig->params [i];
3515 mono_mb_emit_ldarg (mb, 1);
3517 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3518 mono_mb_emit_byte (mb, CEE_ADD);
3522 mono_mb_emit_byte (mb, CEE_LDIND_I);
3523 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3524 * So to make this work we unbox it to a local variablee and push a reference to that.
3526 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3527 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3529 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3530 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3531 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3536 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3537 type = sig->params [i]->type;
3541 case MONO_TYPE_BOOLEAN:
3545 case MONO_TYPE_CHAR:
3554 mono_mb_emit_byte (mb, CEE_LDIND_I);
3555 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3557 case MONO_TYPE_STRING:
3558 case MONO_TYPE_CLASS:
3559 case MONO_TYPE_ARRAY:
3561 case MONO_TYPE_SZARRAY:
3562 case MONO_TYPE_OBJECT:
3563 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3565 case MONO_TYPE_GENERICINST:
3566 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3567 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3572 case MONO_TYPE_VALUETYPE:
3573 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3574 type = mono_class_enum_basetype (t->data.klass)->type;
3577 mono_mb_emit_byte (mb, CEE_LDIND_I);
3578 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3579 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3580 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3581 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3583 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3587 g_assert_not_reached ();
3592 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3593 } else if (need_direct_wrapper) {
3594 mono_mb_emit_op (mb, CEE_CALL, method);
3596 mono_mb_emit_ldarg (mb, 3);
3597 mono_mb_emit_calli (mb, callsig);
3600 if (sig->ret->byref) {
3602 g_assert_not_reached ();
3605 switch (sig->ret->type) {
3606 case MONO_TYPE_VOID:
3607 if (!method->string_ctor)
3610 case MONO_TYPE_BOOLEAN:
3611 case MONO_TYPE_CHAR:
3624 case MONO_TYPE_VALUETYPE:
3625 case MONO_TYPE_TYPEDBYREF:
3626 case MONO_TYPE_GENERICINST:
3627 /* box value types */
3628 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3630 case MONO_TYPE_STRING:
3631 case MONO_TYPE_CLASS:
3632 case MONO_TYPE_ARRAY:
3633 case MONO_TYPE_SZARRAY:
3634 case MONO_TYPE_OBJECT:
3638 /* The result is an IntPtr */
3639 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3642 g_assert_not_reached ();
3646 mono_mb_emit_stloc (mb, loc_res);
3648 /* Convert back nullable-byref arguments */
3649 for (i = 0; i < sig->param_count; i++) {
3650 MonoType *t = sig->params [i];
3653 * Box the result and put it back into the array, the caller will have
3654 * to obtain it from there.
3656 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3657 mono_mb_emit_ldarg (mb, 1);
3658 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3659 mono_mb_emit_byte (mb, CEE_ADD);
3661 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3662 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3664 mono_mb_emit_byte (mb, CEE_STIND_REF);
3668 g_free (tmp_nullable_locals);
3672 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3673 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3674 gboolean virtual, gboolean need_direct_wrapper)
3677 MonoExceptionClause *clause;
3678 int loc_res, loc_exc;
3680 /* The wrapper looks like this:
3686 * } catch (Exception e) {
3694 /* allocate local 0 (object) tmp */
3695 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3696 /* allocate local 1 (object) exc */
3697 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3699 /* *exc is assumed to be initialized to NULL by the caller */
3701 mono_mb_emit_byte (mb, CEE_LDARG_2);
3702 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3707 labels [1] = mono_mb_get_label (mb);
3708 emit_thread_force_interrupt_checkpoint (mb);
3709 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3711 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3713 /* Add a try clause around the call */
3714 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3715 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3716 clause->data.catch_class = mono_defaults.exception_class;
3717 clause->try_offset = labels [1];
3718 clause->try_len = mono_mb_get_label (mb) - labels [1];
3720 clause->handler_offset = mono_mb_get_label (mb);
3723 mono_mb_emit_stloc (mb, loc_exc);
3724 mono_mb_emit_byte (mb, CEE_LDARG_2);
3725 mono_mb_emit_ldloc (mb, loc_exc);
3726 mono_mb_emit_byte (mb, CEE_STIND_REF);
3728 mono_mb_emit_branch (mb, CEE_LEAVE);
3730 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3732 mono_mb_set_clauses (mb, 1, clause);
3734 mono_mb_patch_branch (mb, labels [2]);
3735 mono_mb_emit_ldloc (mb, loc_res);
3736 mono_mb_emit_byte (mb, CEE_RET);
3741 mono_mb_patch_branch (mb, labels [0]);
3742 emit_thread_force_interrupt_checkpoint (mb);
3743 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3745 mono_mb_emit_ldloc (mb, 0);
3746 mono_mb_emit_byte (mb, CEE_RET);
3751 * generates IL code for the runtime invoke function
3752 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3754 * we also catch exceptions if exc != null
3755 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3756 * it means that the compiled code for METHOD does not have to be looked up
3757 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3758 * its METHOD argument.
3761 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3763 MonoMethodSignature *sig, *csig, *callsig;
3764 MonoMethodBuilder *mb;
3765 GHashTable *cache = NULL;
3766 MonoClass *target_klass;
3767 MonoMethod *res = NULL;
3768 static MonoMethodSignature *cctor_signature = NULL;
3769 static MonoMethodSignature *finalize_signature = NULL;
3771 const char *param_names [16];
3772 gboolean need_direct_wrapper = FALSE;
3777 if (!cctor_signature) {
3778 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3779 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3781 if (!finalize_signature) {
3782 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3783 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3784 finalize_signature->hasthis = 1;
3788 need_direct_wrapper = TRUE;
3791 * Use a separate cache indexed by methods to speed things up and to avoid the
3792 * boundless mempool growth caused by the signature_dup stuff below.
3795 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3797 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3798 res = mono_marshal_find_in_cache (cache, method);
3802 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3803 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3805 * Array Get/Set/Address methods. The JIT implements them using inline code
3806 * so we need to create an invoke wrapper which calls the method directly.
3808 need_direct_wrapper = TRUE;
3811 if (method->string_ctor) {
3812 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3814 callsig = add_string_ctor_signature (method);
3815 /* Can't share this as we push a string as this */
3816 need_direct_wrapper = TRUE;
3818 if (method_is_dynamic (method))
3819 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3821 callsig = mono_method_signature (method);
3824 target_klass = get_wrapper_target_class (method->klass->image);
3826 /* Try to share wrappers for non-corlib methods with simple signatures */
3827 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3828 callsig = cctor_signature;
3829 target_klass = mono_defaults.object_class;
3830 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3831 callsig = finalize_signature;
3832 target_klass = mono_defaults.object_class;
3835 if (need_direct_wrapper) {
3836 /* Already searched at the start */
3838 MonoMethodSignature *tmp_sig;
3840 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3842 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3843 /* These have a different csig */
3844 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3845 (GHashFunc)mono_signature_hash,
3846 (GCompareFunc)runtime_invoke_signature_equal);
3848 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3849 (GHashFunc)mono_signature_hash,
3850 (GCompareFunc)runtime_invoke_signature_equal);
3852 /* from mono_marshal_find_in_cache */
3853 mono_marshal_lock ();
3854 res = g_hash_table_lookup (cache, callsig);
3855 mono_marshal_unlock ();
3862 /* Make a copy of the signature from the image mempool */
3864 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3868 sig = mono_method_signature (method);
3870 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3872 csig->ret = &mono_defaults.object_class->byval_arg;
3873 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3874 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3876 csig->params [0] = &mono_defaults.object_class->byval_arg;
3877 csig->params [1] = &mono_defaults.int_class->byval_arg;
3878 csig->params [2] = &mono_defaults.int_class->byval_arg;
3879 csig->params [3] = &mono_defaults.int_class->byval_arg;
3882 /* This is called from runtime code so it has to be cdecl */
3883 csig->call_convention = MONO_CALL_C;
3886 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3887 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3891 param_names [0] = "this";
3892 param_names [1] = "params";
3893 param_names [2] = "exc";
3894 param_names [3] = "method";
3895 mono_mb_set_param_names (mb, param_names);
3897 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3900 if (need_direct_wrapper) {
3902 mb->skip_visibility = 1;
3904 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3905 info->d.runtime_invoke.method = method;
3906 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3908 /* taken from mono_mb_create_and_cache */
3909 mono_marshal_lock ();
3910 res = g_hash_table_lookup (cache, callsig);
3911 mono_marshal_unlock ();
3913 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3914 info->d.runtime_invoke.sig = callsig;
3916 /* Somebody may have created it before us */
3919 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3921 mono_marshal_lock ();
3922 res = g_hash_table_lookup (cache, callsig);
3925 g_hash_table_insert (cache, callsig, res);
3926 /* Can't insert it into wrapper_hash since the key is a signature */
3927 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3929 mono_free_method (newm);
3931 mono_marshal_unlock ();
3934 /* end mono_mb_create_and_cache */
3943 * mono_marshal_get_runtime_invoke_dynamic:
3945 * Return a method which can be used to invoke managed methods from native code
3947 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3948 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3949 * ARGS should point to an architecture specific structure containing
3950 * the arguments and space for the return value.
3951 * The other arguments are the same as for runtime_invoke (), except that
3952 * ARGS should contain the this argument too.
3953 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3954 * is only one copy of it, which is useful in full-aot.
3955 * The wrapper info for the wrapper is a WrapperInfo structure.
3958 mono_marshal_get_runtime_invoke_dynamic (void)
3960 static MonoMethod *method;
3961 MonoMethodSignature *csig;
3962 MonoExceptionClause *clause;
3963 MonoMethodBuilder *mb;
3971 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3973 csig->ret = &mono_defaults.void_class->byval_arg;
3974 csig->params [0] = &mono_defaults.int_class->byval_arg;
3975 csig->params [1] = &mono_defaults.int_class->byval_arg;
3976 csig->params [2] = &mono_defaults.int_class->byval_arg;
3977 csig->params [3] = &mono_defaults.int_class->byval_arg;
3979 name = g_strdup ("runtime_invoke_dynamic");
3980 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
3984 /* allocate local 0 (object) tmp */
3985 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3986 /* allocate local 1 (object) exc */
3987 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3989 /* cond set *exc to null */
3990 mono_mb_emit_byte (mb, CEE_LDARG_1);
3991 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3992 mono_mb_emit_byte (mb, 3);
3993 mono_mb_emit_byte (mb, CEE_LDARG_1);
3994 mono_mb_emit_byte (mb, CEE_LDNULL);
3995 mono_mb_emit_byte (mb, CEE_STIND_REF);
3997 emit_thread_force_interrupt_checkpoint (mb);
3999 mono_mb_emit_byte (mb, CEE_LDARG_0);
4000 mono_mb_emit_byte (mb, CEE_LDARG_2);
4001 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4002 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4004 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4006 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4007 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4008 clause->try_len = mono_mb_get_label (mb);
4011 clause->data.filter_offset = mono_mb_get_label (mb);
4013 mono_mb_emit_byte (mb, CEE_POP);
4014 mono_mb_emit_byte (mb, CEE_LDARG_1);
4015 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4016 mono_mb_emit_byte (mb, CEE_PREFIX1);
4017 mono_mb_emit_byte (mb, CEE_CGT_UN);
4018 mono_mb_emit_byte (mb, CEE_PREFIX1);
4019 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4021 clause->handler_offset = mono_mb_get_label (mb);
4024 /* store exception */
4025 mono_mb_emit_stloc (mb, 1);
4027 mono_mb_emit_byte (mb, CEE_LDARG_1);
4028 mono_mb_emit_ldloc (mb, 1);
4029 mono_mb_emit_byte (mb, CEE_STIND_REF);
4031 mono_mb_emit_byte (mb, CEE_LDNULL);
4032 mono_mb_emit_stloc (mb, 0);
4034 /* Check for the abort exception */
4035 mono_mb_emit_ldloc (mb, 1);
4036 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4037 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4039 /* Delay the abort exception */
4040 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4042 mono_mb_patch_short_branch (mb, posna);
4043 mono_mb_emit_branch (mb, CEE_LEAVE);
4045 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4047 mono_mb_set_clauses (mb, 1, clause);
4050 mono_mb_patch_branch (mb, pos);
4051 //mono_mb_emit_ldloc (mb, 0);
4052 mono_mb_emit_byte (mb, CEE_RET);
4053 #endif /* DISABLE_JIT */
4055 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4057 mono_marshal_lock ();
4058 /* double-checked locking */
4060 method = mono_mb_create (mb, csig, 16, info);
4062 mono_marshal_unlock ();
4071 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4073 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4074 klass->name_space, klass->name);
4076 mono_mb_emit_exception_marshal_directive (mb, msg);
4081 * generates IL code for the icall wrapper (the generated method
4082 * calls the unmanaged code in func)
4083 * The wrapper info for the wrapper is a WrapperInfo structure.
4086 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4088 MonoMethodSignature *csig, *csig2;
4089 MonoMethodBuilder *mb;
4094 g_assert (sig->pinvoke);
4096 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4098 mb->method->save_lmf = 1;
4100 /* Add an explicit this argument */
4102 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4104 csig2 = signature_dup (mono_defaults.corlib, sig);
4108 mono_mb_emit_byte (mb, CEE_LDARG_0);
4110 for (i = 0; i < sig->param_count; i++)
4111 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4113 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4114 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4115 mono_mb_emit_calli (mb, csig2);
4116 if (check_exceptions)
4117 emit_thread_interrupt_checkpoint (mb);
4118 mono_mb_emit_byte (mb, CEE_RET);
4121 csig = signature_dup (mono_defaults.corlib, sig);
4123 if (csig->call_convention == MONO_CALL_VARARG)
4124 csig->call_convention = 0;
4126 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4127 info->d.icall.func = (gpointer)func;
4128 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4135 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4136 MonoMarshalSpec *spec,
4137 int conv_arg, MonoType **conv_arg_type,
4138 MarshalAction action)
4141 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4142 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4147 static MonoClass *ICustomMarshaler = NULL;
4148 static MonoMethod *cleanup_native, *cleanup_managed;
4149 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4150 MonoMethod *get_instance = NULL;
4151 MonoMethodBuilder *mb = m->mb;
4152 char *exception_msg = NULL;
4156 if (!ICustomMarshaler) {
4157 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4159 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4160 goto handle_exception;
4163 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4164 g_assert (cleanup_native);
4165 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4166 g_assert (cleanup_managed);
4167 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4168 g_assert (marshal_managed_to_native);
4169 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4170 g_assert (marshal_native_to_managed);
4172 mono_memory_barrier ();
4173 ICustomMarshaler = klass;
4176 if (spec->data.custom_data.image)
4177 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4179 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4180 g_assert (mtype != NULL);
4181 mklass = mono_class_from_mono_type (mtype);
4182 g_assert (mklass != NULL);
4184 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4185 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4187 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4189 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4190 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4191 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4192 (get_sig->params [0]->type != MONO_TYPE_STRING))
4193 get_instance = NULL;
4197 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);
4200 /* Throw exception and emit compensation code if neccesary */
4201 if (exception_msg) {
4203 case MARSHAL_ACTION_CONV_IN:
4204 case MARSHAL_ACTION_CONV_RESULT:
4205 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4206 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4207 mono_mb_emit_byte (mb, CEE_POP);
4209 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4210 g_free (exception_msg);
4213 case MARSHAL_ACTION_PUSH:
4214 mono_mb_emit_byte (mb, CEE_LDNULL);
4222 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4223 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4226 case MARSHAL_ACTION_CONV_IN:
4228 case MONO_TYPE_CLASS:
4229 case MONO_TYPE_OBJECT:
4230 case MONO_TYPE_STRING:
4231 case MONO_TYPE_ARRAY:
4232 case MONO_TYPE_SZARRAY:
4233 case MONO_TYPE_VALUETYPE:
4237 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4238 g_assert_not_reached ();
4242 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4244 mono_mb_emit_byte (mb, CEE_LDNULL);
4245 mono_mb_emit_stloc (mb, conv_arg);
4247 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4250 /* Minic MS.NET behavior */
4251 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4254 /* Check for null */
4255 mono_mb_emit_ldarg (mb, argnum);
4257 mono_mb_emit_byte (mb, CEE_LDIND_I);
4258 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4260 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4262 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4264 mono_mb_emit_ldarg (mb, argnum);
4266 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4268 if (t->type == MONO_TYPE_VALUETYPE) {
4270 * Since we can't determine the type of the argument, we
4271 * will assume the unmanaged function takes a pointer.
4273 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4275 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4278 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4279 mono_mb_emit_stloc (mb, conv_arg);
4281 mono_mb_patch_branch (mb, pos2);
4284 case MARSHAL_ACTION_CONV_OUT:
4285 /* Check for null */
4286 mono_mb_emit_ldloc (mb, conv_arg);
4287 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4290 mono_mb_emit_ldarg (mb, argnum);
4292 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4294 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4296 mono_mb_emit_ldloc (mb, conv_arg);
4297 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4298 mono_mb_emit_byte (mb, CEE_STIND_REF);
4299 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4300 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4302 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4304 mono_mb_emit_ldloc (mb, conv_arg);
4305 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4307 /* We have nowhere to store the result */
4308 mono_mb_emit_byte (mb, CEE_POP);
4311 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4313 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4315 mono_mb_emit_ldloc (mb, conv_arg);
4317 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4319 mono_mb_patch_branch (mb, pos2);
4322 case MARSHAL_ACTION_PUSH:
4324 mono_mb_emit_ldloc_addr (mb, conv_arg);
4326 mono_mb_emit_ldloc (mb, conv_arg);
4329 case MARSHAL_ACTION_CONV_RESULT:
4330 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4332 mono_mb_emit_stloc (mb, 3);
4334 mono_mb_emit_ldloc (mb, 3);
4335 mono_mb_emit_stloc (mb, loc1);
4337 /* Check for null */
4338 mono_mb_emit_ldloc (mb, 3);
4339 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4341 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4343 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4344 mono_mb_emit_byte (mb, CEE_DUP);
4346 mono_mb_emit_ldloc (mb, 3);
4347 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4348 mono_mb_emit_stloc (mb, 3);
4350 mono_mb_emit_ldloc (mb, loc1);
4351 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4353 mono_mb_patch_branch (mb, pos2);
4356 case MARSHAL_ACTION_MANAGED_CONV_IN:
4357 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4359 mono_mb_emit_byte (mb, CEE_LDNULL);
4360 mono_mb_emit_stloc (mb, conv_arg);
4362 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4365 /* Check for null */
4366 mono_mb_emit_ldarg (mb, argnum);
4368 mono_mb_emit_byte (mb, CEE_LDIND_I);
4369 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4371 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4372 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4374 mono_mb_emit_ldarg (mb, argnum);
4376 mono_mb_emit_byte (mb, CEE_LDIND_I);
4378 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4379 mono_mb_emit_stloc (mb, conv_arg);
4381 mono_mb_patch_branch (mb, pos2);
4384 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4385 g_assert (!t->byref);
4387 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4389 mono_mb_emit_stloc (mb, 3);
4391 mono_mb_emit_ldloc (mb, 3);
4392 mono_mb_emit_stloc (mb, loc1);
4394 /* Check for null */
4395 mono_mb_emit_ldloc (mb, 3);
4396 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4398 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4399 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4400 mono_mb_emit_byte (mb, CEE_DUP);
4402 mono_mb_emit_ldloc (mb, 3);
4403 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4404 mono_mb_emit_stloc (mb, 3);
4406 mono_mb_emit_ldloc (mb, loc1);
4407 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4409 mono_mb_patch_branch (mb, pos2);
4412 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4414 /* Check for null */
4415 mono_mb_emit_ldloc (mb, conv_arg);
4416 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4419 mono_mb_emit_ldarg (mb, argnum);
4421 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4423 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4425 mono_mb_emit_ldloc (mb, conv_arg);
4426 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4427 mono_mb_emit_byte (mb, CEE_STIND_I);
4430 /* Call CleanUpManagedData */
4431 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4433 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4435 mono_mb_emit_ldloc (mb, conv_arg);
4436 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4438 mono_mb_patch_branch (mb, pos2);
4442 g_assert_not_reached ();
4450 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4451 MonoMarshalSpec *spec,
4452 int conv_arg, MonoType **conv_arg_type,
4453 MarshalAction action)
4456 MonoMethodBuilder *mb = m->mb;
4459 case MARSHAL_ACTION_CONV_IN: {
4460 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4462 g_assert (t->type == MONO_TYPE_OBJECT);
4463 g_assert (!t->byref);
4465 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4466 mono_mb_emit_ldarg (mb, argnum);
4467 mono_mb_emit_icon (mb, encoding);
4468 mono_mb_emit_icon (mb, t->attrs);
4469 mono_mb_emit_icall (mb, mono_marshal_asany);
4470 mono_mb_emit_stloc (mb, conv_arg);
4474 case MARSHAL_ACTION_PUSH:
4475 mono_mb_emit_ldloc (mb, conv_arg);
4478 case MARSHAL_ACTION_CONV_OUT: {
4479 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4481 mono_mb_emit_ldarg (mb, argnum);
4482 mono_mb_emit_ldloc (mb, conv_arg);
4483 mono_mb_emit_icon (mb, encoding);
4484 mono_mb_emit_icon (mb, t->attrs);
4485 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4490 g_assert_not_reached ();
4497 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4498 MonoMarshalSpec *spec,
4499 int conv_arg, MonoType **conv_arg_type,
4500 MarshalAction action)
4503 MonoMethodBuilder *mb = m->mb;
4504 MonoClass *klass, *date_time_class;
4507 klass = mono_class_from_mono_type (t);
4509 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4512 case MARSHAL_ACTION_CONV_IN:
4513 if (klass == date_time_class) {
4514 /* Convert it to an OLE DATE type */
4515 static MonoMethod *to_oadate;
4518 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4519 g_assert (to_oadate);
4521 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4524 mono_mb_emit_ldarg (mb, argnum);
4525 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4528 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4530 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4532 mono_mb_emit_ldarg_addr (mb, argnum);
4533 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4534 mono_mb_emit_stloc (mb, conv_arg);
4538 mono_mb_patch_branch (mb, pos);
4542 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4543 klass->blittable || klass->enumtype)
4546 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4548 /* store the address of the source into local variable 0 */
4550 mono_mb_emit_ldarg (mb, argnum);
4552 mono_mb_emit_ldarg_addr (mb, argnum);
4554 mono_mb_emit_stloc (mb, 0);
4556 /* allocate space for the native struct and
4557 * store the address into local variable 1 (dest) */
4558 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4559 mono_mb_emit_byte (mb, CEE_PREFIX1);
4560 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4561 mono_mb_emit_stloc (mb, conv_arg);
4564 mono_mb_emit_ldloc (mb, 0);
4565 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4568 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4570 mono_mb_emit_ldloc (mb, conv_arg);
4571 mono_mb_emit_stloc (mb, 1);
4573 /* emit valuetype conversion code */
4574 emit_struct_conv (mb, klass, FALSE);
4578 mono_mb_patch_branch (mb, pos);
4581 case MARSHAL_ACTION_PUSH:
4582 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4584 g_assert (!t->byref);
4586 /* Have to change the signature since the vtype is passed byref */
4587 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4589 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4590 klass->blittable || klass->enumtype)
4591 mono_mb_emit_ldarg_addr (mb, argnum);
4593 mono_mb_emit_ldloc (mb, conv_arg);
4597 if (klass == date_time_class) {
4599 mono_mb_emit_ldloc_addr (mb, conv_arg);
4601 mono_mb_emit_ldloc (mb, conv_arg);
4605 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4606 klass->blittable || klass->enumtype) {
4607 mono_mb_emit_ldarg (mb, argnum);
4610 mono_mb_emit_ldloc (mb, conv_arg);
4612 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4613 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4617 case MARSHAL_ACTION_CONV_OUT:
4618 if (klass == date_time_class) {
4619 /* Convert from an OLE DATE type */
4620 static MonoMethod *from_oadate;
4625 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4627 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4628 g_assert (from_oadate);
4630 mono_mb_emit_ldarg (mb, argnum);
4631 mono_mb_emit_ldloc (mb, conv_arg);
4632 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4633 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4638 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4639 klass->blittable || klass->enumtype)
4643 /* dst = argument */
4644 mono_mb_emit_ldarg (mb, argnum);
4645 mono_mb_emit_stloc (mb, 1);
4647 mono_mb_emit_ldloc (mb, 1);
4648 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4650 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4651 /* src = tmp_locals [i] */
4652 mono_mb_emit_ldloc (mb, conv_arg);
4653 mono_mb_emit_stloc (mb, 0);
4655 /* emit valuetype conversion code */
4656 emit_struct_conv (mb, klass, TRUE);
4660 emit_struct_free (mb, klass, conv_arg);
4663 mono_mb_patch_branch (mb, pos);
4666 case MARSHAL_ACTION_CONV_RESULT:
4667 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4669 mono_mb_emit_stloc (mb, 3);
4673 /* load pointer to returned value type */
4674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4675 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4676 /* store the address of the source into local variable 0 */
4677 mono_mb_emit_stloc (mb, 0);
4679 mono_mb_emit_ldloc_addr (mb, 3);
4680 mono_mb_emit_stloc (mb, 1);
4682 /* emit valuetype conversion code */
4683 emit_struct_conv (mb, klass, TRUE);
4686 case MARSHAL_ACTION_MANAGED_CONV_IN:
4687 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4688 klass->blittable || klass->enumtype) {
4693 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4695 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4699 mono_mb_emit_ldarg (mb, argnum);
4701 mono_mb_emit_ldarg_addr (mb, argnum);
4702 mono_mb_emit_stloc (mb, 0);
4705 mono_mb_emit_ldloc (mb, 0);
4706 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4709 mono_mb_emit_ldloc_addr (mb, conv_arg);
4710 mono_mb_emit_stloc (mb, 1);
4712 /* emit valuetype conversion code */
4713 emit_struct_conv (mb, klass, TRUE);
4716 mono_mb_patch_branch (mb, pos);
4719 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4720 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4721 klass->blittable || klass->enumtype) {
4725 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4728 /* Check for null */
4729 mono_mb_emit_ldarg (mb, argnum);
4730 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4733 mono_mb_emit_ldloc_addr (mb, conv_arg);
4734 mono_mb_emit_stloc (mb, 0);
4737 mono_mb_emit_ldarg (mb, argnum);
4738 mono_mb_emit_stloc (mb, 1);
4740 /* emit valuetype conversion code */
4741 emit_struct_conv (mb, klass, FALSE);
4743 mono_mb_patch_branch (mb, pos2);
4746 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4747 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4748 klass->blittable || klass->enumtype) {
4749 mono_mb_emit_stloc (mb, 3);
4754 /* load pointer to returned value type */
4755 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4756 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4758 /* store the address of the source into local variable 0 */
4759 mono_mb_emit_stloc (mb, 0);
4760 /* allocate space for the native struct and
4761 * store the address into dst_ptr */
4762 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4763 m->retobj_class = klass;
4764 g_assert (m->retobj_var);
4765 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4766 mono_mb_emit_byte (mb, CEE_CONV_I);
4767 mono_mb_emit_icall (mb, mono_marshal_alloc);
4768 mono_mb_emit_stloc (mb, 1);
4769 mono_mb_emit_ldloc (mb, 1);
4770 mono_mb_emit_stloc (mb, m->retobj_var);
4772 /* emit valuetype conversion code */
4773 emit_struct_conv (mb, klass, FALSE);
4777 g_assert_not_reached ();
4784 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4785 MonoMarshalSpec *spec,
4786 int conv_arg, MonoType **conv_arg_type,
4787 MarshalAction action)
4791 case MARSHAL_ACTION_CONV_IN:
4792 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4794 case MARSHAL_ACTION_MANAGED_CONV_IN:
4795 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4799 MonoMethodBuilder *mb = m->mb;
4800 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4801 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4805 case MARSHAL_ACTION_CONV_IN:
4806 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4807 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4810 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4813 mono_mb_emit_ldarg (mb, argnum);
4814 mono_mb_emit_byte (mb, CEE_LDIND_I);
4816 mono_mb_emit_ldarg (mb, argnum);
4820 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4821 mono_mb_emit_exception_marshal_directive (mb, msg);
4823 mono_mb_emit_icall (mb, conv_to_icall (conv));
4825 mono_mb_emit_stloc (mb, conv_arg);
4829 case MARSHAL_ACTION_CONV_OUT:
4830 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4832 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4833 mono_mb_emit_exception_marshal_directive (mb, msg);
4837 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4838 static MonoMethod *m;
4841 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4846 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4847 mono_mb_emit_exception_marshal_directive (mb, msg);
4852 * Have to allocate a new string with the same length as the original, and
4853 * copy the contents of the buffer pointed to by CONV_ARG into it.
4855 g_assert (t->byref);
4856 mono_mb_emit_ldarg (mb, argnum);
4857 mono_mb_emit_ldloc (mb, conv_arg);
4858 mono_mb_emit_ldarg (mb, argnum);
4859 mono_mb_emit_byte (mb, CEE_LDIND_I);
4860 mono_mb_emit_managed_call (mb, m, NULL);
4861 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4862 mono_mb_emit_byte (mb, CEE_STIND_REF);
4863 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4864 mono_mb_emit_ldarg (mb, argnum);
4865 mono_mb_emit_ldloc (mb, conv_arg);
4866 mono_mb_emit_icall (mb, conv_to_icall (conv));
4867 mono_mb_emit_byte (mb, CEE_STIND_REF);
4872 mono_mb_emit_ldloc (mb, conv_arg);
4873 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4874 mono_mb_emit_icall (mb, mono_free_bstr);
4876 mono_mb_emit_icall (mb, mono_marshal_free);
4880 case MARSHAL_ACTION_PUSH:
4881 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4882 mono_mb_emit_ldloc_addr (mb, conv_arg);
4884 mono_mb_emit_ldloc (mb, conv_arg);
4887 case MARSHAL_ACTION_CONV_RESULT:
4888 mono_mb_emit_stloc (mb, 0);
4890 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4892 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4893 mono_mb_emit_exception_marshal_directive (mb, msg);
4897 mono_mb_emit_ldloc (mb, 0);
4898 mono_mb_emit_icall (mb, conv_to_icall (conv));
4899 mono_mb_emit_stloc (mb, 3);
4901 /* free the string */
4902 mono_mb_emit_ldloc (mb, 0);
4903 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4904 mono_mb_emit_icall (mb, mono_free_bstr);
4906 mono_mb_emit_icall (mb, mono_marshal_free);
4909 case MARSHAL_ACTION_MANAGED_CONV_IN:
4910 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4912 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4915 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4919 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4921 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4922 mono_mb_emit_exception_marshal_directive (mb, msg);
4926 mono_mb_emit_ldarg (mb, argnum);
4928 mono_mb_emit_byte (mb, CEE_LDIND_I);
4929 mono_mb_emit_icall (mb, conv_to_icall (conv));
4930 mono_mb_emit_stloc (mb, conv_arg);
4933 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4936 mono_mb_emit_ldarg (mb, argnum);
4937 mono_mb_emit_ldloc (mb, conv_arg);
4938 mono_mb_emit_icall (mb, conv_to_icall (conv));
4939 mono_mb_emit_byte (mb, CEE_STIND_I);
4944 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4945 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4946 /* We need to make a copy so the caller is able to free it */
4947 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4949 mono_mb_emit_icall (mb, conv_to_icall (conv));
4950 mono_mb_emit_stloc (mb, 3);
4954 g_assert_not_reached ();
4962 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4963 MonoMarshalSpec *spec, int conv_arg,
4964 MonoType **conv_arg_type, MarshalAction action)
4967 if (action == MARSHAL_ACTION_CONV_IN)
4968 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4970 MonoMethodBuilder *mb = m->mb;
4973 case MARSHAL_ACTION_CONV_IN: {
4974 MonoType *intptr_type;
4975 int dar_release_slot, pos;
4977 intptr_type = &mono_defaults.int_class->byval_arg;
4978 conv_arg = mono_mb_add_local (mb, intptr_type);
4979 *conv_arg_type = intptr_type;
4981 if (!sh_dangerous_add_ref)
4982 init_safe_handle ();
4984 mono_mb_emit_ldarg (mb, argnum);
4985 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4986 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
4988 mono_mb_patch_branch (mb, pos);
4991 * My tests in show that ref SafeHandles are not really
4992 * passed as ref objects. Instead a NULL is passed as the
4995 mono_mb_emit_icon (mb, 0);
4996 mono_mb_emit_stloc (mb, conv_arg);
5000 /* Create local to hold the ref parameter to DangerousAddRef */
5001 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5003 /* set release = false; */
5004 mono_mb_emit_icon (mb, 0);
5005 mono_mb_emit_stloc (mb, dar_release_slot);
5007 /* safehandle.DangerousAddRef (ref release) */
5008 mono_mb_emit_ldarg (mb, argnum);
5009 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5010 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5012 /* Pull the handle field from SafeHandle */
5013 mono_mb_emit_ldarg (mb, argnum);
5014 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5015 mono_mb_emit_byte (mb, CEE_LDIND_I);
5016 mono_mb_emit_stloc (mb, conv_arg);
5021 case MARSHAL_ACTION_PUSH:
5023 mono_mb_emit_ldloc_addr (mb, conv_arg);
5025 mono_mb_emit_ldloc (mb, conv_arg);
5028 case MARSHAL_ACTION_CONV_OUT: {
5029 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5030 int dar_release_slot = conv_arg + 1;
5033 if (!sh_dangerous_release)
5034 init_safe_handle ();
5040 * My tests indicate that ref SafeHandles parameters are not actually
5041 * passed by ref, but instead a new Handle is created regardless of
5042 * whether a change happens in the unmanaged side.
5044 * Also, the Handle is created before calling into unmanaged code,
5045 * but we do not support that mechanism (getting to the original
5046 * handle) and it makes no difference where we create this
5048 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5050 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5053 /* refval = new SafeHandleDerived ()*/
5054 mono_mb_emit_ldarg (mb, argnum);
5055 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5056 mono_mb_emit_byte (mb, CEE_STIND_REF);
5058 /* refval.handle = returned_handle */
5059 mono_mb_emit_ldarg (mb, argnum);
5060 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5061 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5062 mono_mb_emit_ldloc (mb, conv_arg);
5063 mono_mb_emit_byte (mb, CEE_STIND_I);
5065 mono_mb_emit_ldloc (mb, dar_release_slot);
5066 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5067 mono_mb_emit_ldarg (mb, argnum);
5068 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5069 mono_mb_patch_branch (mb, label_next);
5074 case MARSHAL_ACTION_CONV_RESULT: {
5075 MonoMethod *ctor = NULL;
5076 int intptr_handle_slot;
5078 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5079 mono_mb_emit_byte (mb, CEE_POP);
5080 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5084 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5086 mono_mb_emit_byte (mb, CEE_POP);
5087 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5090 /* Store the IntPtr results into a local */
5091 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5092 mono_mb_emit_stloc (mb, intptr_handle_slot);
5094 /* Create return value */
5095 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5096 mono_mb_emit_stloc (mb, 3);
5098 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5099 mono_mb_emit_ldloc (mb, 3);
5100 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5101 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5102 mono_mb_emit_byte (mb, CEE_STIND_I);
5106 case MARSHAL_ACTION_MANAGED_CONV_IN:
5107 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5110 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5111 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5114 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5115 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5118 printf ("Unhandled case for MarshalAction: %d\n", action);
5126 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5127 MonoMarshalSpec *spec, int conv_arg,
5128 MonoType **conv_arg_type, MarshalAction action)
5131 if (action == MARSHAL_ACTION_CONV_IN)
5132 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5134 MonoMethodBuilder *mb = m->mb;
5137 case MARSHAL_ACTION_CONV_IN: {
5138 MonoType *intptr_type;
5140 intptr_type = &mono_defaults.int_class->byval_arg;
5141 conv_arg = mono_mb_add_local (mb, intptr_type);
5142 *conv_arg_type = intptr_type;
5145 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5146 mono_mb_emit_exception_marshal_directive (mb, msg);
5149 mono_mb_emit_ldarg_addr (mb, argnum);
5150 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5151 mono_mb_emit_byte (mb, CEE_ADD);
5152 mono_mb_emit_byte (mb, CEE_LDIND_I);
5153 mono_mb_emit_stloc (mb, conv_arg);
5157 case MARSHAL_ACTION_PUSH:
5158 mono_mb_emit_ldloc (mb, conv_arg);
5161 case MARSHAL_ACTION_CONV_OUT: {
5162 /* no resource release required */
5166 case MARSHAL_ACTION_CONV_RESULT: {
5167 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5168 mono_mb_emit_exception_marshal_directive (mb, msg);
5172 case MARSHAL_ACTION_MANAGED_CONV_IN:
5173 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5176 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5177 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5180 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5181 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5184 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5192 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5193 MonoMarshalSpec *spec,
5194 int conv_arg, MonoType **conv_arg_type,
5195 MarshalAction action)
5198 if (action == MARSHAL_ACTION_CONV_IN)
5199 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5201 MonoMethodBuilder *mb = m->mb;
5202 MonoClass *klass = mono_class_from_mono_type (t);
5206 case MARSHAL_ACTION_CONV_IN:
5207 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5208 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5210 m->orig_conv_args [argnum] = 0;
5212 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5213 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5214 mono_mb_emit_exception_marshal_directive (mb, msg);
5218 if (klass->delegate) {
5220 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5221 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5222 mono_mb_emit_exception_marshal_directive (mb, msg);
5224 mono_mb_emit_byte (mb, CEE_LDNULL);
5225 mono_mb_emit_stloc (mb, conv_arg);
5227 mono_mb_emit_ldarg (mb, argnum);
5228 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5229 mono_mb_emit_stloc (mb, conv_arg);
5231 } else if (klass == mono_defaults.stringbuilder_class) {
5232 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5233 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5237 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5238 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5239 mono_mb_emit_exception_marshal_directive (mb, msg);
5245 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5249 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5250 mono_mb_emit_exception_marshal_directive (mb, msg);
5254 mono_mb_emit_ldarg (mb, argnum);
5256 mono_mb_emit_byte (mb, CEE_LDIND_I);
5258 mono_mb_emit_icall (mb, conv_to_icall (conv));
5259 mono_mb_emit_stloc (mb, conv_arg);
5260 } else if (klass->blittable) {
5261 mono_mb_emit_byte (mb, CEE_LDNULL);
5262 mono_mb_emit_stloc (mb, conv_arg);
5264 mono_mb_emit_ldarg (mb, argnum);
5265 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5267 mono_mb_emit_ldarg (mb, argnum);
5268 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5269 mono_mb_emit_stloc (mb, conv_arg);
5271 mono_mb_patch_branch (mb, pos);
5274 mono_mb_emit_byte (mb, CEE_LDNULL);
5275 mono_mb_emit_stloc (mb, conv_arg);
5278 /* we dont need any conversions for out parameters */
5279 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5282 mono_mb_emit_ldarg (mb, argnum);
5283 mono_mb_emit_byte (mb, CEE_LDIND_I);
5286 mono_mb_emit_ldarg (mb, argnum);
5287 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5288 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5291 /* store the address of the source into local variable 0 */
5292 mono_mb_emit_stloc (mb, 0);
5293 mono_mb_emit_ldloc (mb, 0);
5294 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5296 /* allocate space for the native struct and store the address */
5297 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5298 mono_mb_emit_byte (mb, CEE_PREFIX1);
5299 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5300 mono_mb_emit_stloc (mb, conv_arg);
5303 /* Need to store the original buffer so we can free it later */
5304 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5305 mono_mb_emit_ldloc (mb, conv_arg);
5306 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5309 /* set the src_ptr */
5310 mono_mb_emit_ldloc (mb, 0);
5311 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5312 mono_mb_emit_stloc (mb, 0);
5315 mono_mb_emit_ldloc (mb, conv_arg);
5316 mono_mb_emit_stloc (mb, 1);
5318 /* emit valuetype conversion code */
5319 emit_struct_conv (mb, klass, FALSE);
5321 mono_mb_patch_branch (mb, pos);
5325 case MARSHAL_ACTION_CONV_OUT:
5326 if (klass == mono_defaults.stringbuilder_class) {
5328 MonoMarshalNative encoding;
5329 MonoMarshalConv conv;
5331 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5332 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5334 g_assert (encoding != -1);
5337 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5341 mono_mb_emit_ldarg (mb, argnum);
5342 mono_mb_emit_ldloc (mb, conv_arg);
5345 case MONO_NATIVE_LPWSTR:
5346 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5348 case MONO_NATIVE_LPSTR:
5349 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5352 g_assert_not_reached ();
5355 mono_mb_emit_byte (mb, CEE_STIND_REF);
5357 mono_mb_emit_ldarg (mb, argnum);
5358 mono_mb_emit_ldloc (mb, conv_arg);
5360 mono_mb_emit_icall (mb, conv_to_icall (conv));
5364 mono_mb_emit_ldloc (mb, conv_arg);
5365 mono_mb_emit_icall (mb, mono_marshal_free);
5370 if (klass->delegate) {
5372 mono_mb_emit_ldarg (mb, argnum);
5373 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5374 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5375 mono_mb_emit_ldloc (mb, conv_arg);
5376 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5377 mono_mb_emit_byte (mb, CEE_STIND_REF);
5382 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5383 /* allocate a new object */
5384 mono_mb_emit_ldarg (mb, argnum);
5385 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5386 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5387 mono_mb_emit_byte (mb, CEE_STIND_REF);
5390 /* dst = *argument */
5391 mono_mb_emit_ldarg (mb, argnum);
5394 mono_mb_emit_byte (mb, CEE_LDIND_I);
5396 mono_mb_emit_stloc (mb, 1);
5398 mono_mb_emit_ldloc (mb, 1);
5399 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5401 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5402 mono_mb_emit_ldloc (mb, 1);
5403 mono_mb_emit_icon (mb, sizeof (MonoObject));
5404 mono_mb_emit_byte (mb, CEE_ADD);
5405 mono_mb_emit_stloc (mb, 1);
5407 /* src = tmp_locals [i] */
5408 mono_mb_emit_ldloc (mb, conv_arg);
5409 mono_mb_emit_stloc (mb, 0);
5411 /* emit valuetype conversion code */
5412 emit_struct_conv (mb, klass, TRUE);
5414 /* Free the structure returned by the native code */
5415 emit_struct_free (mb, klass, conv_arg);
5417 if (m->orig_conv_args [argnum]) {
5419 * If the native function changed the pointer, then free
5420 * the original structure plus the new pointer.
5422 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5423 mono_mb_emit_ldloc (mb, conv_arg);
5424 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5426 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5427 g_assert (m->orig_conv_args [argnum]);
5429 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5432 mono_mb_emit_ldloc (mb, conv_arg);
5433 mono_mb_emit_icall (mb, mono_marshal_free);
5435 mono_mb_patch_branch (mb, pos2);
5439 /* Free the original structure passed to native code */
5440 emit_struct_free (mb, klass, conv_arg);
5442 mono_mb_patch_branch (mb, pos);
5445 case MARSHAL_ACTION_PUSH:
5447 mono_mb_emit_ldloc_addr (mb, conv_arg);
5449 mono_mb_emit_ldloc (mb, conv_arg);
5452 case MARSHAL_ACTION_CONV_RESULT:
5453 if (klass->delegate) {
5454 g_assert (!t->byref);
5455 mono_mb_emit_stloc (mb, 0);
5456 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5457 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5458 mono_mb_emit_ldloc (mb, 0);
5459 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5460 mono_mb_emit_stloc (mb, 3);
5463 mono_mb_emit_stloc (mb, 0);
5465 /* Make a copy since emit_conv modifies local 0 */
5466 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5467 mono_mb_emit_ldloc (mb, 0);
5468 mono_mb_emit_stloc (mb, loc);
5470 mono_mb_emit_byte (mb, CEE_LDNULL);
5471 mono_mb_emit_stloc (mb, 3);
5473 mono_mb_emit_ldloc (mb, 0);
5474 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5476 /* allocate result object */
5478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5479 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5480 mono_mb_emit_stloc (mb, 3);
5484 mono_mb_emit_ldloc (mb, 3);
5485 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5486 mono_mb_emit_stloc (mb, 1);
5488 /* emit conversion code */
5489 emit_struct_conv (mb, klass, TRUE);
5491 emit_struct_free (mb, klass, loc);
5493 /* Free the pointer allocated by unmanaged code */
5494 mono_mb_emit_ldloc (mb, loc);
5495 mono_mb_emit_icall (mb, mono_marshal_free);
5496 mono_mb_patch_branch (mb, pos);
5500 case MARSHAL_ACTION_MANAGED_CONV_IN:
5501 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5503 if (klass->delegate) {
5504 g_assert (!t->byref);
5505 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5506 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5507 mono_mb_emit_ldarg (mb, argnum);
5508 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5509 mono_mb_emit_stloc (mb, conv_arg);
5513 if (klass == mono_defaults.stringbuilder_class) {
5514 MonoMarshalNative encoding;
5516 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5519 g_assert (encoding == MONO_NATIVE_LPSTR);
5521 g_assert (!t->byref);
5522 g_assert (encoding != -1);
5524 mono_mb_emit_ldarg (mb, argnum);
5525 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5526 mono_mb_emit_stloc (mb, conv_arg);
5530 /* The class can not have an automatic layout */
5531 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5532 mono_mb_emit_auto_layout_exception (mb, klass);
5536 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5537 mono_mb_emit_byte (mb, CEE_LDNULL);
5538 mono_mb_emit_stloc (mb, conv_arg);
5543 mono_mb_emit_ldarg (mb, argnum);
5547 /* Check for NULL and raise an exception */
5548 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5550 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5552 mono_mb_patch_branch (mb, pos2);
5553 mono_mb_emit_ldarg (mb, argnum);
5554 mono_mb_emit_byte (mb, CEE_LDIND_I);
5557 mono_mb_emit_stloc (mb, 0);
5559 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5560 mono_mb_emit_stloc (mb, conv_arg);
5562 mono_mb_emit_ldloc (mb, 0);
5563 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5565 /* Create and set dst */
5566 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5567 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5568 mono_mb_emit_stloc (mb, conv_arg);
5569 mono_mb_emit_ldloc (mb, conv_arg);
5570 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5571 mono_mb_emit_stloc (mb, 1);
5573 /* emit valuetype conversion code */
5574 emit_struct_conv (mb, klass, TRUE);
5576 mono_mb_patch_branch (mb, pos);
5579 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5581 /* Check for null */
5582 mono_mb_emit_ldloc (mb, conv_arg);
5583 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5584 mono_mb_emit_ldarg (mb, argnum);
5585 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5586 mono_mb_emit_byte (mb, CEE_STIND_REF);
5587 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5589 mono_mb_patch_branch (mb, pos);
5592 mono_mb_emit_ldloc (mb, conv_arg);
5593 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5594 mono_mb_emit_stloc (mb, 0);
5596 /* Allocate and set dest */
5597 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5598 mono_mb_emit_byte (mb, CEE_CONV_I);
5599 mono_mb_emit_icall (mb, mono_marshal_alloc);
5600 mono_mb_emit_stloc (mb, 1);
5602 /* Update argument pointer */
5603 mono_mb_emit_ldarg (mb, argnum);
5604 mono_mb_emit_ldloc (mb, 1);
5605 mono_mb_emit_byte (mb, CEE_STIND_I);
5607 /* emit valuetype conversion code */
5608 emit_struct_conv (mb, klass, FALSE);
5610 mono_mb_patch_branch (mb, pos2);
5612 /* byval [Out] marshalling */
5614 /* FIXME: Handle null */
5617 mono_mb_emit_ldloc (mb, conv_arg);
5618 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5619 mono_mb_emit_stloc (mb, 0);
5622 mono_mb_emit_ldarg (mb, argnum);
5623 mono_mb_emit_stloc (mb, 1);
5625 /* emit valuetype conversion code */
5626 emit_struct_conv (mb, klass, FALSE);
5630 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5631 if (klass->delegate) {
5632 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5633 mono_mb_emit_stloc (mb, 3);
5637 /* The class can not have an automatic layout */
5638 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5639 mono_mb_emit_auto_layout_exception (mb, klass);
5643 mono_mb_emit_stloc (mb, 0);
5644 /* Check for null */
5645 mono_mb_emit_ldloc (mb, 0);
5646 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5647 mono_mb_emit_byte (mb, CEE_LDNULL);
5648 mono_mb_emit_stloc (mb, 3);
5649 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5651 mono_mb_patch_branch (mb, pos);
5654 mono_mb_emit_ldloc (mb, 0);
5655 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5656 mono_mb_emit_stloc (mb, 0);
5658 /* Allocate and set dest */
5659 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5660 mono_mb_emit_byte (mb, CEE_CONV_I);
5661 mono_mb_emit_icall (mb, mono_marshal_alloc);
5662 mono_mb_emit_byte (mb, CEE_DUP);
5663 mono_mb_emit_stloc (mb, 1);
5664 mono_mb_emit_stloc (mb, 3);
5666 emit_struct_conv (mb, klass, FALSE);
5668 mono_mb_patch_branch (mb, pos2);
5672 g_assert_not_reached ();
5683 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5684 MonoMarshalSpec *spec,
5685 int conv_arg, MonoType **conv_arg_type,
5686 MarshalAction action)
5688 MonoMethodBuilder *mb = m->mb;
5689 static MonoMethod *get_object_for_native_variant = NULL;
5690 static MonoMethod *get_native_variant_for_object = NULL;
5692 if (!get_object_for_native_variant)
5693 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5694 g_assert (get_object_for_native_variant);
5696 if (!get_native_variant_for_object)
5697 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5698 g_assert (get_native_variant_for_object);
5701 case MARSHAL_ACTION_CONV_IN: {
5702 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5705 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5707 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5709 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5712 mono_mb_emit_ldarg (mb, argnum);
5714 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5715 mono_mb_emit_ldloc_addr (mb, conv_arg);
5716 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5720 case MARSHAL_ACTION_CONV_OUT: {
5721 static MonoMethod *variant_clear = NULL;
5724 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5725 g_assert (variant_clear);
5728 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5729 mono_mb_emit_ldarg (mb, argnum);
5730 mono_mb_emit_ldloc_addr (mb, conv_arg);
5731 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5732 mono_mb_emit_byte (mb, CEE_STIND_REF);
5735 mono_mb_emit_ldloc_addr (mb, conv_arg);
5736 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5740 case MARSHAL_ACTION_PUSH:
5742 mono_mb_emit_ldloc_addr (mb, conv_arg);
5744 mono_mb_emit_ldloc (mb, conv_arg);
5747 case MARSHAL_ACTION_CONV_RESULT: {
5748 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5749 mono_mb_emit_exception_marshal_directive (mb, msg);
5753 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5754 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5757 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5759 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5761 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5765 mono_mb_emit_ldarg (mb, argnum);
5767 mono_mb_emit_ldarg_addr (mb, argnum);
5768 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5769 mono_mb_emit_stloc (mb, conv_arg);
5773 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5774 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5775 mono_mb_emit_ldloc (mb, conv_arg);
5776 mono_mb_emit_ldarg (mb, argnum);
5777 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5782 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5783 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5784 mono_mb_emit_exception_marshal_directive (mb, msg);
5789 g_assert_not_reached ();
5795 #endif /* DISABLE_COM */
5796 #endif /* DISABLE_JIT */
5799 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5801 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5802 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5804 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5806 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5818 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5819 MonoMarshalSpec *spec,
5820 int conv_arg, MonoType **conv_arg_type,
5821 MarshalAction action)
5825 case MARSHAL_ACTION_CONV_IN:
5826 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5828 case MARSHAL_ACTION_MANAGED_CONV_IN:
5829 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5833 MonoMethodBuilder *mb = m->mb;
5834 MonoClass *klass = mono_class_from_mono_type (t);
5835 gboolean need_convert, need_free;
5836 MonoMarshalNative encoding;
5838 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5841 case MARSHAL_ACTION_CONV_IN:
5842 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5843 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5845 if (klass->element_class->blittable) {
5846 mono_mb_emit_ldarg (mb, argnum);
5848 mono_mb_emit_byte (mb, CEE_LDIND_I);
5849 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5850 mono_mb_emit_stloc (mb, conv_arg);
5853 guint32 label1, label2, label3;
5854 int index_var, src_var, dest_ptr, esize;
5855 MonoMarshalConv conv;
5856 gboolean is_string = FALSE;
5858 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5860 eklass = klass->element_class;
5862 if (eklass == mono_defaults.string_class) {
5864 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5866 else if (eklass == mono_defaults.stringbuilder_class) {
5868 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5873 if (is_string && conv == -1) {
5874 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5875 mono_mb_emit_exception_marshal_directive (mb, msg);
5879 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5880 mono_mb_emit_ldarg (mb, argnum);
5882 mono_mb_emit_byte (mb, CEE_LDIND_I);
5883 mono_mb_emit_stloc (mb, src_var);
5886 mono_mb_emit_ldloc (mb, src_var);
5887 mono_mb_emit_stloc (mb, conv_arg);
5888 mono_mb_emit_ldloc (mb, src_var);
5889 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5892 esize = sizeof (gpointer);
5893 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5894 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5896 esize = mono_class_native_size (eklass, NULL);
5898 /* allocate space for the native struct and store the address */
5899 mono_mb_emit_icon (mb, esize);
5900 mono_mb_emit_ldloc (mb, src_var);
5901 mono_mb_emit_byte (mb, CEE_LDLEN);
5903 if (eklass == mono_defaults.string_class) {
5904 /* Make the array bigger for the terminating null */
5905 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5906 mono_mb_emit_byte (mb, CEE_ADD);
5908 mono_mb_emit_byte (mb, CEE_MUL);
5909 mono_mb_emit_byte (mb, CEE_PREFIX1);
5910 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5911 mono_mb_emit_stloc (mb, conv_arg);
5913 mono_mb_emit_ldloc (mb, conv_arg);
5914 mono_mb_emit_stloc (mb, dest_ptr);
5916 /* Emit marshalling loop */
5917 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5918 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5919 mono_mb_emit_stloc (mb, index_var);
5920 label2 = mono_mb_get_label (mb);
5921 mono_mb_emit_ldloc (mb, index_var);
5922 mono_mb_emit_ldloc (mb, src_var);
5923 mono_mb_emit_byte (mb, CEE_LDLEN);
5924 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5926 /* Emit marshalling code */
5929 mono_mb_emit_ldloc (mb, dest_ptr);
5930 mono_mb_emit_ldloc (mb, src_var);
5931 mono_mb_emit_ldloc (mb, index_var);
5932 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5933 mono_mb_emit_icall (mb, conv_to_icall (conv));
5934 mono_mb_emit_byte (mb, CEE_STIND_I);
5936 /* set the src_ptr */
5937 mono_mb_emit_ldloc (mb, src_var);
5938 mono_mb_emit_ldloc (mb, index_var);
5939 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5940 mono_mb_emit_stloc (mb, 0);
5943 mono_mb_emit_ldloc (mb, dest_ptr);
5944 mono_mb_emit_stloc (mb, 1);
5946 /* emit valuetype conversion code */
5947 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5950 mono_mb_emit_add_to_local (mb, index_var, 1);
5951 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5953 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5955 mono_mb_patch_branch (mb, label3);
5957 if (eklass == mono_defaults.string_class) {
5958 /* Null terminate */
5959 mono_mb_emit_ldloc (mb, dest_ptr);
5960 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5961 mono_mb_emit_byte (mb, CEE_STIND_REF);
5964 mono_mb_patch_branch (mb, label1);
5969 case MARSHAL_ACTION_CONV_OUT:
5970 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5971 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);
5972 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5975 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
5976 int param_num = spec->data.array_data.param_num;
5977 MonoType *param_type;
5979 param_type = m->sig->params [param_num];
5981 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
5982 char *msg = g_strdup ("Not implemented.");
5983 mono_mb_emit_exception_marshal_directive (mb, msg);
5987 mono_mb_emit_ldarg (mb, argnum);
5989 /* Create the managed array */
5990 mono_mb_emit_ldarg (mb, param_num);
5991 if (m->sig->params [param_num]->byref)
5992 // FIXME: Support other types
5993 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5994 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
5995 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
5996 /* Store into argument */
5997 mono_mb_emit_byte (mb, CEE_STIND_I);
6000 if (need_convert || need_free) {
6001 /* FIXME: Optimize blittable case */
6003 guint32 label1, label2, label3;
6004 int index_var, src_ptr, loc, esize;
6006 eklass = klass->element_class;
6007 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6008 esize = sizeof (gpointer);
6009 else if (eklass == mono_defaults.char_class)
6010 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6012 esize = mono_class_native_size (eklass, NULL);
6013 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6014 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6017 mono_mb_emit_ldarg (mb, argnum);
6019 mono_mb_emit_byte (mb, CEE_LDIND_I);
6020 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6022 mono_mb_emit_ldloc (mb, conv_arg);
6023 mono_mb_emit_stloc (mb, src_ptr);
6025 /* Emit marshalling loop */
6026 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6027 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6028 mono_mb_emit_stloc (mb, index_var);
6029 label2 = mono_mb_get_label (mb);
6030 mono_mb_emit_ldloc (mb, index_var);
6031 mono_mb_emit_ldarg (mb, argnum);
6033 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6034 mono_mb_emit_byte (mb, CEE_LDLEN);
6035 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6037 /* Emit marshalling code */
6039 if (eklass == mono_defaults.stringbuilder_class) {
6040 gboolean need_free2;
6041 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6043 g_assert (conv != -1);
6046 mono_mb_emit_ldarg (mb, argnum);
6048 mono_mb_emit_byte (mb, CEE_LDIND_I);
6049 mono_mb_emit_ldloc (mb, index_var);
6050 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6053 mono_mb_emit_ldloc (mb, src_ptr);
6054 mono_mb_emit_byte (mb, CEE_LDIND_I);
6056 mono_mb_emit_icall (mb, conv_to_icall (conv));
6060 mono_mb_emit_ldloc (mb, src_ptr);
6061 mono_mb_emit_byte (mb, CEE_LDIND_I);
6063 mono_mb_emit_icall (mb, mono_marshal_free);
6066 else if (eklass == mono_defaults.string_class) {
6069 mono_mb_emit_ldloc (mb, src_ptr);
6070 mono_mb_emit_byte (mb, CEE_LDIND_I);
6072 mono_mb_emit_icall (mb, mono_marshal_free);
6077 /* set the src_ptr */
6078 mono_mb_emit_ldloc (mb, src_ptr);
6079 mono_mb_emit_stloc (mb, 0);
6082 mono_mb_emit_ldarg (mb, argnum);
6084 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6085 mono_mb_emit_ldloc (mb, index_var);
6086 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6087 mono_mb_emit_stloc (mb, 1);
6089 /* emit valuetype conversion code */
6090 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6094 mono_mb_emit_ldloc (mb, src_ptr);
6095 mono_mb_emit_stloc (mb, loc);
6096 mono_mb_emit_ldloc (mb, loc);
6098 emit_struct_free (mb, eklass, loc);
6102 mono_mb_emit_add_to_local (mb, index_var, 1);
6103 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6105 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6107 mono_mb_patch_branch (mb, label1);
6108 mono_mb_patch_branch (mb, label3);
6111 if (klass->element_class->blittable) {
6112 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6114 mono_mb_emit_ldarg (mb, argnum);
6116 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6117 mono_mb_emit_ldloc (mb, conv_arg);
6118 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6123 case MARSHAL_ACTION_PUSH:
6125 mono_mb_emit_ldloc_addr (mb, conv_arg);
6127 mono_mb_emit_ldloc (mb, conv_arg);
6130 case MARSHAL_ACTION_CONV_RESULT:
6131 /* fixme: we need conversions here */
6132 mono_mb_emit_stloc (mb, 3);
6135 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6137 guint32 label1, label2, label3;
6138 int index_var, src_ptr, esize, param_num, num_elem;
6139 MonoMarshalConv conv;
6140 gboolean is_string = FALSE;
6142 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6143 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6146 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6147 mono_mb_emit_exception_marshal_directive (mb, msg);
6151 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6152 mono_mb_emit_exception_marshal_directive (mb, msg);
6155 if (spec->native != MONO_NATIVE_LPARRAY) {
6156 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6157 mono_mb_emit_exception_marshal_directive (mb, msg);
6161 /* FIXME: t is from the method which is wrapped, not the delegate type */
6162 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6164 param_num = spec->data.array_data.param_num;
6165 num_elem = spec->data.array_data.num_elem;
6166 if (spec->data.array_data.elem_mult == 0)
6167 /* param_num is not specified */
6170 if (param_num == -1) {
6171 if (num_elem <= 0) {
6172 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6173 mono_mb_emit_exception_marshal_directive (mb, msg);
6178 /* FIXME: Optimize blittable case */
6180 eklass = klass->element_class;
6181 if (eklass == mono_defaults.string_class) {
6183 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6185 else if (eklass == mono_defaults.stringbuilder_class) {
6187 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6192 mono_marshal_load_type_info (eklass);
6195 esize = sizeof (gpointer);
6197 esize = mono_class_native_size (eklass, NULL);
6198 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6200 mono_mb_emit_byte (mb, CEE_LDNULL);
6201 mono_mb_emit_stloc (mb, conv_arg);
6203 /* Check param index */
6204 if (param_num != -1) {
6205 if (param_num >= m->sig->param_count) {
6206 char *msg = g_strdup ("Array size control parameter index is out of range.");
6207 mono_mb_emit_exception_marshal_directive (mb, msg);
6210 switch (m->sig->params [param_num]->type) {
6223 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6224 mono_mb_emit_exception_marshal_directive (mb, msg);
6231 mono_mb_emit_ldarg (mb, argnum);
6232 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6234 mono_mb_emit_ldarg (mb, argnum);
6235 mono_mb_emit_stloc (mb, src_ptr);
6237 /* Create managed array */
6239 * The LPArray marshalling spec says that sometimes param_num starts
6240 * from 1, sometimes it starts from 0. But MS seems to allways start
6244 if (param_num == -1) {
6245 mono_mb_emit_icon (mb, num_elem);
6247 mono_mb_emit_ldarg (mb, param_num);
6249 mono_mb_emit_icon (mb, num_elem);
6250 mono_mb_emit_byte (mb, CEE_ADD);
6252 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6255 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6256 mono_mb_emit_stloc (mb, conv_arg);
6258 if (eklass->blittable) {
6259 mono_mb_emit_ldloc (mb, conv_arg);
6260 mono_mb_emit_byte (mb, CEE_CONV_I);
6261 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6262 mono_mb_emit_byte (mb, CEE_ADD);
6263 mono_mb_emit_ldarg (mb, argnum);
6264 mono_mb_emit_ldloc (mb, conv_arg);
6265 mono_mb_emit_byte (mb, CEE_LDLEN);
6266 mono_mb_emit_icon (mb, esize);
6267 mono_mb_emit_byte (mb, CEE_MUL);
6268 mono_mb_emit_byte (mb, CEE_PREFIX1);
6269 mono_mb_emit_byte (mb, CEE_CPBLK);
6273 /* Emit marshalling loop */
6274 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6275 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6276 mono_mb_emit_stloc (mb, index_var);
6277 label2 = mono_mb_get_label (mb);
6278 mono_mb_emit_ldloc (mb, index_var);
6279 mono_mb_emit_ldloc (mb, conv_arg);
6280 mono_mb_emit_byte (mb, CEE_LDLEN);
6281 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6283 /* Emit marshalling code */
6285 g_assert (conv != -1);
6287 mono_mb_emit_ldloc (mb, conv_arg);
6288 mono_mb_emit_ldloc (mb, index_var);
6290 mono_mb_emit_ldloc (mb, src_ptr);
6291 mono_mb_emit_byte (mb, CEE_LDIND_I);
6293 mono_mb_emit_icall (mb, conv_to_icall (conv));
6294 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6297 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6298 mono_mb_emit_exception_marshal_directive (mb, msg);
6302 mono_mb_emit_add_to_local (mb, index_var, 1);
6303 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6305 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6307 mono_mb_patch_branch (mb, label1);
6308 mono_mb_patch_branch (mb, label3);
6312 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6314 guint32 label1, label2, label3;
6315 int index_var, dest_ptr, esize, param_num, num_elem;
6316 MonoMarshalConv conv;
6317 gboolean is_string = FALSE;
6320 /* Already handled in CONV_IN */
6323 /* These are already checked in CONV_IN */
6324 g_assert (!t->byref);
6325 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6326 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6328 param_num = spec->data.array_data.param_num;
6329 num_elem = spec->data.array_data.num_elem;
6331 if (spec->data.array_data.elem_mult == 0)
6332 /* param_num is not specified */
6335 if (param_num == -1) {
6336 if (num_elem <= 0) {
6337 g_assert_not_reached ();
6341 /* FIXME: Optimize blittable case */
6343 eklass = klass->element_class;
6344 if (eklass == mono_defaults.string_class) {
6346 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6348 else if (eklass == mono_defaults.stringbuilder_class) {
6350 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6355 mono_marshal_load_type_info (eklass);
6358 esize = sizeof (gpointer);
6360 esize = mono_class_native_size (eklass, NULL);
6362 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6365 mono_mb_emit_ldloc (mb, conv_arg);
6366 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6368 mono_mb_emit_ldarg (mb, argnum);
6369 mono_mb_emit_stloc (mb, dest_ptr);
6371 if (eklass->blittable) {
6373 mono_mb_emit_ldarg (mb, argnum);
6375 mono_mb_emit_ldloc (mb, conv_arg);
6376 mono_mb_emit_byte (mb, CEE_CONV_I);
6377 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6378 mono_mb_emit_byte (mb, CEE_ADD);
6380 mono_mb_emit_ldloc (mb, conv_arg);
6381 mono_mb_emit_byte (mb, CEE_LDLEN);
6382 mono_mb_emit_icon (mb, esize);
6383 mono_mb_emit_byte (mb, CEE_MUL);
6384 mono_mb_emit_byte (mb, CEE_PREFIX1);
6385 mono_mb_emit_byte (mb, CEE_CPBLK);
6389 /* Emit marshalling loop */
6390 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6391 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6392 mono_mb_emit_stloc (mb, index_var);
6393 label2 = mono_mb_get_label (mb);
6394 mono_mb_emit_ldloc (mb, index_var);
6395 mono_mb_emit_ldloc (mb, conv_arg);
6396 mono_mb_emit_byte (mb, CEE_LDLEN);
6397 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6399 /* Emit marshalling code */
6401 g_assert (conv != -1);
6404 mono_mb_emit_ldloc (mb, dest_ptr);
6407 mono_mb_emit_ldloc (mb, conv_arg);
6408 mono_mb_emit_ldloc (mb, index_var);
6410 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6412 mono_mb_emit_icall (mb, conv_to_icall (conv));
6413 mono_mb_emit_byte (mb, CEE_STIND_I);
6416 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6417 mono_mb_emit_exception_marshal_directive (mb, msg);
6421 mono_mb_emit_add_to_local (mb, index_var, 1);
6422 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6424 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6426 mono_mb_patch_branch (mb, label1);
6427 mono_mb_patch_branch (mb, label3);
6431 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6433 guint32 label1, label2, label3;
6434 int index_var, src, dest, esize;
6435 MonoMarshalConv conv = -1;
6436 gboolean is_string = FALSE;
6438 g_assert (!t->byref);
6440 eklass = klass->element_class;
6442 mono_marshal_load_type_info (eklass);
6444 if (eklass == mono_defaults.string_class) {
6446 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6449 g_assert_not_reached ();
6453 esize = sizeof (gpointer);
6454 else if (eklass == mono_defaults.char_class)
6455 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6457 esize = mono_class_native_size (eklass, NULL);
6459 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6460 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6462 mono_mb_emit_stloc (mb, src);
6463 mono_mb_emit_ldloc (mb, src);
6464 mono_mb_emit_stloc (mb, 3);
6466 /* Check for null */
6467 mono_mb_emit_ldloc (mb, src);
6468 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6470 /* Allocate native array */
6471 mono_mb_emit_icon (mb, esize);
6472 mono_mb_emit_ldloc (mb, src);
6473 mono_mb_emit_byte (mb, CEE_LDLEN);
6475 if (eklass == mono_defaults.string_class) {
6476 /* Make the array bigger for the terminating null */
6477 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6478 mono_mb_emit_byte (mb, CEE_ADD);
6480 mono_mb_emit_byte (mb, CEE_MUL);
6481 mono_mb_emit_icall (mb, mono_marshal_alloc);
6482 mono_mb_emit_stloc (mb, dest);
6483 mono_mb_emit_ldloc (mb, dest);
6484 mono_mb_emit_stloc (mb, 3);
6486 /* Emit marshalling loop */
6487 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6488 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6489 mono_mb_emit_stloc (mb, index_var);
6490 label2 = mono_mb_get_label (mb);
6491 mono_mb_emit_ldloc (mb, index_var);
6492 mono_mb_emit_ldloc (mb, src);
6493 mono_mb_emit_byte (mb, CEE_LDLEN);
6494 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6496 /* Emit marshalling code */
6498 g_assert (conv != -1);
6501 mono_mb_emit_ldloc (mb, dest);
6504 mono_mb_emit_ldloc (mb, src);
6505 mono_mb_emit_ldloc (mb, index_var);
6507 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6509 mono_mb_emit_icall (mb, conv_to_icall (conv));
6510 mono_mb_emit_byte (mb, CEE_STIND_I);
6513 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6514 mono_mb_emit_exception_marshal_directive (mb, msg);
6518 mono_mb_emit_add_to_local (mb, index_var, 1);
6519 mono_mb_emit_add_to_local (mb, dest, esize);
6521 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6523 mono_mb_patch_branch (mb, label3);
6524 mono_mb_patch_branch (mb, label1);
6528 g_assert_not_reached ();
6535 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6538 return &mono_defaults.int32_class->byval_arg;
6540 switch (spec->native) {
6541 case MONO_NATIVE_I1:
6542 case MONO_NATIVE_U1:
6543 return &mono_defaults.byte_class->byval_arg;
6544 case MONO_NATIVE_VARIANTBOOL:
6545 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6546 return &mono_defaults.int16_class->byval_arg;
6547 case MONO_NATIVE_BOOLEAN:
6548 return &mono_defaults.int32_class->byval_arg;
6550 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6551 return &mono_defaults.int32_class->byval_arg;
6557 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6559 MonoClass* conv_arg_class = mono_defaults.int32_class;
6561 switch (spec->native) {
6562 case MONO_NATIVE_I1:
6563 case MONO_NATIVE_U1:
6564 conv_arg_class = mono_defaults.byte_class;
6565 if (ldop) *ldop = CEE_LDIND_I1;
6567 case MONO_NATIVE_VARIANTBOOL:
6568 conv_arg_class = mono_defaults.int16_class;
6569 if (ldop) *ldop = CEE_LDIND_I2;
6571 case MONO_NATIVE_BOOLEAN:
6574 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6577 return conv_arg_class;
6581 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6582 MonoMarshalSpec *spec,
6583 int conv_arg, MonoType **conv_arg_type,
6584 MarshalAction action)
6588 case MARSHAL_ACTION_CONV_IN:
6590 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6592 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6595 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6596 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6598 *conv_arg_type = &conv_arg_class->this_arg;
6600 *conv_arg_type = &conv_arg_class->byval_arg;
6606 MonoMethodBuilder *mb = m->mb;
6609 case MARSHAL_ACTION_CONV_IN: {
6610 MonoType *local_type;
6612 guint8 ldc_op = CEE_LDC_I4_1;
6614 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6616 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6618 *conv_arg_type = local_type;
6619 conv_arg = mono_mb_add_local (mb, local_type);
6621 mono_mb_emit_ldarg (mb, argnum);
6623 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6624 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6625 mono_mb_emit_byte (mb, ldc_op);
6626 mono_mb_emit_stloc (mb, conv_arg);
6627 mono_mb_patch_branch (mb, label_false);
6632 case MARSHAL_ACTION_CONV_OUT:
6634 int label_false, label_end;
6638 mono_mb_emit_ldarg (mb, argnum);
6639 mono_mb_emit_ldloc (mb, conv_arg);
6641 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6642 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6644 label_end = mono_mb_emit_branch (mb, CEE_BR);
6645 mono_mb_patch_branch (mb, label_false);
6646 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6647 mono_mb_patch_branch (mb, label_end);
6649 mono_mb_emit_byte (mb, CEE_STIND_I1);
6653 case MARSHAL_ACTION_PUSH:
6655 mono_mb_emit_ldloc_addr (mb, conv_arg);
6657 mono_mb_emit_ldloc (mb, conv_arg);
6659 mono_mb_emit_ldarg (mb, argnum);
6662 case MARSHAL_ACTION_CONV_RESULT:
6663 /* maybe we need to make sure that it fits within 8 bits */
6664 mono_mb_emit_stloc (mb, 3);
6667 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6668 MonoClass* conv_arg_class = mono_defaults.int32_class;
6669 guint8 ldop = CEE_LDIND_I4;
6670 int label_null, label_false;
6672 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6673 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6676 *conv_arg_type = &conv_arg_class->this_arg;
6678 *conv_arg_type = &conv_arg_class->byval_arg;
6681 mono_mb_emit_ldarg (mb, argnum);
6685 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6686 mono_mb_emit_ldarg (mb, argnum);
6687 mono_mb_emit_byte (mb, ldop);
6691 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6692 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6693 mono_mb_emit_stloc (mb, conv_arg);
6694 mono_mb_patch_branch (mb, label_false);
6697 mono_mb_patch_branch (mb, label_null);
6701 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6702 guint8 stop = CEE_STIND_I4;
6703 guint8 ldc_op = CEE_LDC_I4_1;
6704 int label_null,label_false, label_end;;
6709 switch (spec->native) {
6710 case MONO_NATIVE_I1:
6711 case MONO_NATIVE_U1:
6712 stop = CEE_STIND_I1;
6714 case MONO_NATIVE_VARIANTBOOL:
6715 stop = CEE_STIND_I2;
6716 ldc_op = CEE_LDC_I4_M1;
6724 mono_mb_emit_ldarg (mb, argnum);
6725 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6727 mono_mb_emit_ldarg (mb, argnum);
6728 mono_mb_emit_ldloc (mb, conv_arg);
6730 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6731 mono_mb_emit_byte (mb, ldc_op);
6732 label_end = mono_mb_emit_branch (mb, CEE_BR);
6734 mono_mb_patch_branch (mb, label_false);
6735 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6736 mono_mb_patch_branch (mb, label_end);
6738 mono_mb_emit_byte (mb, stop);
6739 mono_mb_patch_branch (mb, label_null);
6744 g_assert_not_reached ();
6751 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6752 MonoMarshalSpec *spec, int conv_arg,
6753 MonoType **conv_arg_type, MarshalAction action)
6756 MonoMethodBuilder *mb = m->mb;
6759 case MARSHAL_ACTION_CONV_IN:
6760 /* MS seems to allow this in some cases, ie. bxc #158 */
6762 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6763 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6764 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6769 case MARSHAL_ACTION_PUSH:
6770 mono_mb_emit_ldarg (mb, argnum);
6773 case MARSHAL_ACTION_CONV_RESULT:
6774 /* no conversions necessary */
6775 mono_mb_emit_stloc (mb, 3);
6786 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6787 MonoMarshalSpec *spec, int conv_arg,
6788 MonoType **conv_arg_type, MarshalAction action)
6791 MonoMethodBuilder *mb = m->mb;
6794 case MARSHAL_ACTION_PUSH:
6795 /* fixme: dont know how to marshal that. We cant simply
6796 * convert it to a one byte UTF8 character, because an
6797 * unicode character may need more that one byte in UTF8 */
6798 mono_mb_emit_ldarg (mb, argnum);
6801 case MARSHAL_ACTION_CONV_RESULT:
6802 /* fixme: we need conversions here */
6803 mono_mb_emit_stloc (mb, 3);
6814 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6815 MonoMarshalSpec *spec, int conv_arg,
6816 MonoType **conv_arg_type, MarshalAction action)
6819 MonoMethodBuilder *mb = m->mb;
6822 case MARSHAL_ACTION_PUSH:
6823 mono_mb_emit_ldarg (mb, argnum);
6826 case MARSHAL_ACTION_CONV_RESULT:
6827 /* no conversions necessary */
6828 mono_mb_emit_stloc (mb, 3);
6839 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6840 MonoMarshalSpec *spec, int conv_arg,
6841 MonoType **conv_arg_type, MarshalAction action)
6843 /* Ensure that we have marshalling info for this param */
6844 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6846 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6847 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6849 if (spec && spec->native == MONO_NATIVE_ASANY)
6850 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6853 case MONO_TYPE_VALUETYPE:
6854 if (t->data.klass == mono_defaults.handleref_class)
6855 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6857 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6858 case MONO_TYPE_STRING:
6859 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6860 case MONO_TYPE_CLASS:
6861 case MONO_TYPE_OBJECT:
6863 if (spec && spec->native == MONO_NATIVE_STRUCT)
6864 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6866 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6867 spec->native == MONO_NATIVE_IDISPATCH ||
6868 spec->native == MONO_NATIVE_INTERFACE))
6869 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6870 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6871 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6872 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6873 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6876 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6877 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6878 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6880 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6881 case MONO_TYPE_ARRAY:
6882 case MONO_TYPE_SZARRAY:
6883 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6884 case MONO_TYPE_BOOLEAN:
6885 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6887 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6888 case MONO_TYPE_CHAR:
6889 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6902 case MONO_TYPE_FNPTR:
6903 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6904 case MONO_TYPE_GENERICINST:
6905 if (mono_type_generic_inst_is_valuetype (t))
6906 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6908 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6916 * mono_marshal_emit_native_wrapper:
6917 * @image: the image to use for looking up custom marshallers
6918 * @sig: The signature of the native function
6919 * @piinfo: Marshalling information
6920 * @mspecs: Marshalling information
6921 * @aot: whenever the created method will be compiled by the AOT compiler
6922 * @method: if non-NULL, the pinvoke method to call
6923 * @check_exceptions: Whenever to check for pending exceptions after the native call
6924 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6926 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6929 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions, gboolean func_param)
6931 EmitMarshalContext m;
6932 MonoMethodSignature *csig;
6934 int i, argnum, *tmp_locals;
6935 int type, param_shift = 0;
6936 static MonoMethodSignature *get_last_error_sig = NULL;
6938 memset (&m, 0, sizeof (m));
6943 /* we copy the signature, so that we can set pinvoke to 0 */
6945 /* The function address is passed as the first argument */
6946 g_assert (!sig->hasthis);
6949 csig = signature_dup (mb->method->klass->image, sig);
6957 /* we allocate local for use with emit_struct_conv() */
6958 /* allocate local 0 (pointer) src_ptr */
6959 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6960 /* allocate local 1 (pointer) dst_ptr */
6961 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6962 /* allocate local 2 (boolean) delete_old */
6963 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6965 /* delete_old = FALSE */
6966 mono_mb_emit_icon (mb, 0);
6967 mono_mb_emit_stloc (mb, 2);
6969 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6970 /* allocate local 3 to store the return value */
6971 mono_mb_add_local (mb, sig->ret);
6974 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6975 /* Return type custom marshaling */
6977 * Since we can't determine the return type of the unmanaged function,
6978 * we assume it returns a pointer, and pass that pointer to
6979 * MarshalNativeToManaged.
6981 csig->ret = &mono_defaults.int_class->byval_arg;
6984 /* we first do all conversions */
6985 tmp_locals = alloca (sizeof (int) * sig->param_count);
6986 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6988 for (i = 0; i < sig->param_count; i ++) {
6989 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6992 /* push all arguments */
6995 mono_mb_emit_byte (mb, CEE_LDARG_0);
6997 for (i = 0; i < sig->param_count; i++) {
6998 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7001 /* call the native method */
7003 mono_mb_emit_byte (mb, CEE_LDARG_0);
7004 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7005 mono_mb_emit_byte (mb, CEE_LDIND_I);
7006 mono_mb_emit_calli (mb, csig);
7007 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7009 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7011 g_assert_not_reached ();
7016 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7017 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7018 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7019 mono_mb_emit_calli (mb, csig);
7021 mono_mb_emit_native_call (mb, csig, func);
7025 /* Set LastError if needed */
7026 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7027 if (!get_last_error_sig) {
7028 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7029 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7030 get_last_error_sig->pinvoke = 1;
7035 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7036 * clobber its value.
7038 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7039 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7041 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7045 /* convert the result */
7046 if (!sig->ret->byref) {
7047 MonoMarshalSpec *spec = mspecs [0];
7048 type = sig->ret->type;
7050 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7051 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7056 case MONO_TYPE_VOID:
7058 case MONO_TYPE_VALUETYPE:
7059 klass = sig->ret->data.klass;
7060 if (klass->enumtype) {
7061 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7064 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7078 case MONO_TYPE_FNPTR:
7079 case MONO_TYPE_STRING:
7080 case MONO_TYPE_CLASS:
7081 case MONO_TYPE_OBJECT:
7082 case MONO_TYPE_BOOLEAN:
7083 case MONO_TYPE_ARRAY:
7084 case MONO_TYPE_SZARRAY:
7085 case MONO_TYPE_CHAR:
7087 case MONO_TYPE_GENERICINST:
7088 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7090 case MONO_TYPE_TYPEDBYREF:
7092 g_warning ("return type 0x%02x unknown", sig->ret->type);
7093 g_assert_not_reached ();
7097 mono_mb_emit_stloc (mb, 3);
7101 * Need to call this after converting the result since MONO_VTADDR needs
7102 * to be adjacent to the call instruction.
7104 if (check_exceptions)
7105 emit_thread_interrupt_checkpoint (mb);
7107 /* we need to convert byref arguments back and free string arrays */
7108 for (i = 0; i < sig->param_count; i++) {
7109 MonoType *t = sig->params [i];
7110 MonoMarshalSpec *spec = mspecs [i + 1];
7112 argnum = i + param_shift;
7114 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7115 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7120 case MONO_TYPE_STRING:
7121 case MONO_TYPE_VALUETYPE:
7122 case MONO_TYPE_CLASS:
7123 case MONO_TYPE_OBJECT:
7124 case MONO_TYPE_SZARRAY:
7125 case MONO_TYPE_BOOLEAN:
7126 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7133 if (!MONO_TYPE_IS_VOID(sig->ret))
7134 mono_mb_emit_ldloc (mb, 3);
7136 mono_mb_emit_byte (mb, CEE_RET);
7138 #endif /* DISABLE_JIT */
7141 G_GNUC_UNUSED static void
7142 code_for (MonoMethod *method) {
7143 MonoMethodHeader *header = mono_method_get_header (method);
7144 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
7148 * mono_marshal_get_native_wrapper:
7149 * @method: The MonoMethod to wrap.
7150 * @check_exceptions: Whenever to check for pending exceptions
7152 * generates IL code for the pinvoke wrapper (the generated method
7153 * calls the unmanaged code in piinfo->addr)
7154 * The wrapper info for the wrapper is a WrapperInfo structure.
7157 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7159 MonoMethodSignature *sig, *csig;
7160 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7161 MonoMethodBuilder *mb;
7162 MonoMarshalSpec **mspecs;
7165 gboolean pinvoke = FALSE;
7168 const char *exc_class = "MissingMethodException";
7169 const char *exc_arg = NULL;
7172 g_assert (method != NULL);
7173 g_assert (mono_method_signature (method)->pinvoke);
7176 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7178 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7179 if ((res = mono_marshal_find_in_cache (cache, method)))
7182 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7183 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7187 return mono_cominterop_get_native_wrapper (method);
7189 g_assert_not_reached ();
7193 sig = mono_method_signature (method);
7195 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7196 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7199 if (!piinfo->addr) {
7201 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7202 exc_arg = "Method contains unsupported native code";
7204 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7206 piinfo->addr = mono_lookup_internal_call (method);
7210 /* hack - redirect certain string constructors to CreateString */
7211 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7212 g_assert (!pinvoke);
7213 g_assert (method->string_ctor);
7214 g_assert (sig->hasthis);
7216 /* CreateString returns a value */
7217 csig = signature_dup (method->klass->image, sig);
7218 csig->ret = &mono_defaults.string_class->byval_arg;
7222 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7223 if (!strcmp ("CreateString", res->name) &&
7224 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7227 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7228 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7230 /* create a wrapper to preserve .ctor in stack trace */
7231 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7234 mono_mb_emit_byte (mb, CEE_LDARG_0);
7235 for (i = 1; i <= csig->param_count; i++)
7236 mono_mb_emit_ldarg (mb, i);
7237 mono_mb_emit_managed_call (mb, res, NULL);
7238 mono_mb_emit_byte (mb, CEE_RET);
7241 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7242 info->d.string_ctor.method = method;
7244 /* use native_wrapper_cache because internal calls are looked up there */
7245 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7246 csig->param_count + 1, info, NULL);
7253 /* exception will be thrown */
7254 piinfo->addr = NULL;
7255 g_warning ("cannot find CreateString for .ctor");
7258 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7260 mb->method->save_lmf = 1;
7263 * In AOT mode and embedding scenarios, it is possible that the icall is not
7264 * registered in the runtime doing the AOT compilation.
7266 if (!piinfo->addr && !aot) {
7268 mono_mb_emit_exception (mb, exc_class, exc_arg);
7270 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7271 info->d.managed_to_native.method = method;
7273 csig = signature_dup (method->klass->image, sig);
7275 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7276 csig->param_count + 16, info, NULL);
7282 /* internal calls: we simply push all arguments and call the method (no conversions) */
7283 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7285 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7287 csig = signature_dup (method->klass->image, sig);
7289 /* hack - string constructors returns a value */
7290 if (method->string_ctor)
7291 csig->ret = &mono_defaults.string_class->byval_arg;
7298 * Add a null check since public icalls can be called with 'call' which
7299 * does no such check.
7301 mono_mb_emit_byte (mb, CEE_LDARG_0);
7302 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7303 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7304 mono_mb_patch_branch (mb, pos);
7306 mono_mb_emit_byte (mb, CEE_LDARG_0);
7309 for (i = 0; i < sig->param_count; i++)
7310 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7313 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7314 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7315 mono_mb_emit_calli (mb, csig);
7317 g_assert (piinfo->addr);
7318 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7320 if (check_exceptions)
7321 emit_thread_interrupt_checkpoint (mb);
7322 mono_mb_emit_byte (mb, CEE_RET);
7324 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7325 info->d.managed_to_native.method = method;
7327 csig = signature_dup (method->klass->image, csig);
7329 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7338 g_assert (piinfo->addr);
7341 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7342 mono_method_get_marshal_info (method, mspecs);
7344 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7346 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7347 info->d.managed_to_native.method = method;
7349 csig = signature_dup (method->klass->image, sig);
7351 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7356 for (i = sig->param_count; i >= 0; i--)
7358 mono_metadata_free_marshal_spec (mspecs [i]);
7362 /* code_for (res); */
7368 * mono_marshal_get_native_func_wrapper:
7369 * @image: The image to use for memory allocation and for looking up custom marshallers.
7370 * @sig: The signature of the function
7371 * @func: The native function to wrap
7373 * Returns a wrapper method around native functions, similar to the pinvoke
7377 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7378 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7380 MonoMethodSignature *csig;
7382 SignaturePointerPair key, *new_key;
7383 MonoMethodBuilder *mb;
7392 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7393 if ((res = mono_marshal_find_in_cache (cache, &key)))
7396 name = g_strdup_printf ("wrapper_native_%p", func);
7397 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7398 mb->method->save_lmf = 1;
7401 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7404 csig = signature_dup (image, sig);
7407 new_key = g_new (SignaturePointerPair,1);
7408 new_key->sig = csig;
7409 new_key->pointer = func;
7411 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7417 mono_marshal_set_wrapper_info (res, NULL);
7423 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7427 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7429 MonoMethodSignature *sig, *csig;
7430 MonoMethodBuilder *mb;
7435 MonoMethodPInvoke mpiinfo;
7436 MonoMethodPInvoke *piinfo = &mpiinfo;
7437 MonoMarshalSpec **mspecs;
7438 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7439 MonoImage *image = invoke->klass->image;
7442 // FIXME: include UnmanagedFunctionPointerAttribute info
7445 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7447 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7448 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7451 memset (&mpiinfo, 0, sizeof (mpiinfo));
7452 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7454 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7455 mono_method_get_marshal_info (invoke, mspecs);
7456 /* Freed below so don't alloc from mempool */
7457 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7460 name = g_strdup_printf ("wrapper_aot_native");
7461 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7462 mb->method->save_lmf = 1;
7465 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7468 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7469 info->d.managed_to_native.method = invoke;
7471 g_assert (!sig->hasthis);
7472 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7474 res = mono_mb_create_and_cache_full (cache, invoke,
7475 mb, csig, csig->param_count + 16,
7479 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7481 mono_metadata_free_marshal_spec (mspecs [i]);
7489 * mono_marshal_emit_managed_wrapper:
7491 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7492 * the delegate which wraps the managed method to be called. For closed delegates,
7493 * it could have fewer parameters than the method it wraps.
7494 * THIS_LOC is the memory location where the target of the delegate is stored.
7497 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7500 MonoMethodSignature *sig, *csig;
7506 /* we first do all conversions */
7507 for (i = 0; i < sig->param_count; i ++) {
7508 MonoType *t = sig->params [i];
7511 case MONO_TYPE_OBJECT:
7512 case MONO_TYPE_CLASS:
7513 case MONO_TYPE_VALUETYPE:
7514 case MONO_TYPE_ARRAY:
7515 case MONO_TYPE_SZARRAY:
7516 case MONO_TYPE_STRING:
7517 case MONO_TYPE_BOOLEAN:
7518 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7522 if (!sig->ret->byref) {
7523 switch (sig->ret->type) {
7524 case MONO_TYPE_STRING:
7525 csig->ret = &mono_defaults.int_class->byval_arg;
7532 MonoMethodSignature *sig, *csig;
7534 gboolean closed = FALSE;
7539 /* allocate local 0 (pointer) src_ptr */
7540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7541 /* allocate local 1 (pointer) dst_ptr */
7542 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7543 /* allocate local 2 (boolean) delete_old */
7544 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7546 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7547 /* Closed delegate */
7548 g_assert (sig->param_count == invoke_sig->param_count + 1);
7550 /* Use a new signature without the first argument */
7551 sig = mono_metadata_signature_dup (sig);
7552 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7553 sig->param_count --;
7556 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7557 /* allocate local 3 to store the return value */
7558 mono_mb_add_local (mb, sig->ret);
7561 mono_mb_emit_icon (mb, 0);
7562 mono_mb_emit_stloc (mb, 2);
7565 * Might need to attach the thread to the JIT or change the
7566 * domain for the callback.
7568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7569 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7571 /* we first do all conversions */
7572 tmp_locals = alloca (sizeof (int) * sig->param_count);
7573 for (i = 0; i < sig->param_count; i ++) {
7574 MonoType *t = sig->params [i];
7577 case MONO_TYPE_OBJECT:
7578 case MONO_TYPE_CLASS:
7579 case MONO_TYPE_VALUETYPE:
7580 case MONO_TYPE_ARRAY:
7581 case MONO_TYPE_SZARRAY:
7582 case MONO_TYPE_STRING:
7583 case MONO_TYPE_BOOLEAN:
7584 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7593 emit_thread_interrupt_checkpoint (mb);
7596 if (target_handle) {
7597 mono_mb_emit_icon (mb, (gint32)target_handle);
7598 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7601 g_assert_not_reached ();
7603 } else if (closed) {
7604 mono_mb_emit_icon (mb, (gint32)target_handle);
7605 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7608 for (i = 0; i < sig->param_count; i++) {
7609 MonoType *t = sig->params [i];
7611 if (tmp_locals [i]) {
7613 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7615 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7618 mono_mb_emit_ldarg (mb, i);
7621 mono_mb_emit_managed_call (mb, method, NULL);
7623 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7624 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7625 } else if (!sig->ret->byref) {
7626 switch (sig->ret->type) {
7627 case MONO_TYPE_VOID:
7629 case MONO_TYPE_BOOLEAN:
7632 case MONO_TYPE_CHAR:
7644 case MONO_TYPE_OBJECT:
7645 mono_mb_emit_stloc (mb, 3);
7647 case MONO_TYPE_STRING:
7648 csig->ret = &mono_defaults.int_class->byval_arg;
7649 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7651 case MONO_TYPE_VALUETYPE:
7652 case MONO_TYPE_CLASS:
7653 case MONO_TYPE_SZARRAY:
7654 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7657 g_warning ("return type 0x%02x unknown", sig->ret->type);
7658 g_assert_not_reached ();
7661 mono_mb_emit_stloc (mb, 3);
7664 /* Convert byref arguments back */
7665 for (i = 0; i < sig->param_count; i ++) {
7666 MonoType *t = sig->params [i];
7667 MonoMarshalSpec *spec = mspecs [i + 1];
7669 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7670 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7672 else if (t->byref) {
7674 case MONO_TYPE_CLASS:
7675 case MONO_TYPE_VALUETYPE:
7676 case MONO_TYPE_OBJECT:
7677 case MONO_TYPE_STRING:
7678 case MONO_TYPE_BOOLEAN:
7679 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7685 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7686 /* The [Out] information is encoded in the delegate signature */
7688 case MONO_TYPE_SZARRAY:
7689 case MONO_TYPE_CLASS:
7690 case MONO_TYPE_VALUETYPE:
7691 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7694 g_assert_not_reached ();
7699 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7700 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7702 if (m->retobj_var) {
7703 mono_mb_emit_ldloc (mb, m->retobj_var);
7704 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7705 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7708 if (!MONO_TYPE_IS_VOID(sig->ret))
7709 mono_mb_emit_ldloc (mb, 3);
7710 mono_mb_emit_byte (mb, CEE_RET);
7719 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7721 MonoMethodSignature *sig;
7726 * Under windows, delegates passed to native code must use the STDCALL
7727 * calling convention.
7729 csig->call_convention = MONO_CALL_STDCALL;
7732 sig = mono_method_signature (method);
7734 /* Change default calling convention if needed */
7735 /* Why is this a modopt ? */
7736 if (sig->ret && sig->ret->num_mods) {
7737 for (i = 0; i < sig->ret->num_mods; ++i) {
7739 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7740 g_assert (mono_error_ok (&error));
7741 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7742 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7743 csig->call_convention = MONO_CALL_C;
7744 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7745 csig->call_convention = MONO_CALL_STDCALL;
7746 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7747 csig->call_convention = MONO_CALL_FASTCALL;
7748 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7749 csig->call_convention = MONO_CALL_THISCALL;
7756 * generates IL code to call managed methods from unmanaged code
7757 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7760 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7762 static MonoClass *UnmanagedFunctionPointerAttribute;
7763 MonoMethodSignature *sig, *csig, *invoke_sig;
7764 MonoMethodBuilder *mb;
7765 MonoMethod *res, *invoke;
7766 MonoMarshalSpec **mspecs;
7767 MonoMethodPInvoke piinfo;
7770 EmitMarshalContext m;
7772 g_assert (method != NULL);
7773 g_assert (!mono_method_signature (method)->pinvoke);
7776 * FIXME: Should cache the method+delegate type pair, since the same method
7777 * could be called with different delegates, thus different marshalling
7780 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7781 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7784 invoke = mono_get_delegate_invoke (delegate_klass);
7785 invoke_sig = mono_method_signature (invoke);
7787 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7788 mono_method_get_marshal_info (invoke, mspecs);
7790 sig = mono_method_signature (method);
7792 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7794 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7795 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7797 /* we copy the signature, so that we can modify it */
7799 /* Need to free this later */
7800 csig = mono_metadata_signature_dup (invoke_sig);
7802 csig = signature_dup (method->klass->image, invoke_sig);
7806 memset (&m, 0, sizeof (m));
7812 m.image = method->klass->image;
7814 mono_marshal_set_callconv_from_modopt (invoke, csig);
7816 /* Handle the UnmanagedFunctionPointerAttribute */
7817 if (!UnmanagedFunctionPointerAttribute)
7818 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7820 /* The attribute is only available in Net 2.0 */
7821 if (UnmanagedFunctionPointerAttribute) {
7822 MonoCustomAttrInfo *cinfo;
7823 MonoCustomAttrEntry *attr;
7826 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7827 * contents of the attribute without constructing it, as that might not be
7828 * possible when running in cross-compiling mode.
7830 cinfo = mono_custom_attrs_from_class (delegate_klass);
7833 for (i = 0; i < cinfo->num_attrs; ++i) {
7834 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7835 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7836 attr = &cinfo->attrs [i];
7842 MonoArray *typed_args, *named_args;
7843 CattrNamedArg *arginfo;
7847 MonoBoolean set_last_error = 0;
7850 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7851 g_assert (mono_error_ok (&error));
7852 g_assert (mono_array_length (typed_args) == 1);
7855 o = mono_array_get (typed_args, MonoObject*, 0);
7856 call_conv = *(gint32*)mono_object_unbox (o);
7859 for (i = 0; i < mono_array_length (named_args); ++i) {
7860 CattrNamedArg *narg = &arginfo [i];
7862 o = mono_array_get (named_args, MonoObject*, i);
7864 g_assert (narg->field);
7865 if (!strcmp (narg->field->name, "CharSet")) {
7866 charset = *(gint32*)mono_object_unbox (o);
7867 } else if (!strcmp (narg->field->name, "SetLastError")) {
7868 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7869 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7870 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7871 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7872 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7874 g_assert_not_reached ();
7880 memset (&piinfo, 0, sizeof (piinfo));
7882 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7884 csig->call_convention = call_conv - 1;
7887 if (cinfo && !cinfo->cached)
7888 mono_custom_attrs_free (cinfo);
7891 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7893 if (!target_handle) {
7896 // FIXME: Associate it with the method+delegate_klass pair
7897 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7898 info->d.native_to_managed.method = method;
7899 info->d.native_to_managed.klass = delegate_klass;
7901 res = mono_mb_create_and_cache_full (cache, method,
7902 mb, csig, sig->param_count + 16,
7908 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7912 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7914 mono_metadata_free_marshal_spec (mspecs [i]);
7917 /* code_for (res); */
7923 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7926 MonoMethodSignature *sig;
7927 MonoMethodBuilder *mb;
7932 method = mono_get_method (image, token, NULL);
7935 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7936 MonoMethodSignature *csig;
7937 MonoMarshalSpec **mspecs;
7938 EmitMarshalContext m;
7940 sig = mono_method_signature (method);
7941 g_assert (!sig->hasthis);
7943 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7944 mono_method_get_marshal_info (method, mspecs);
7946 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7947 csig = signature_dup (image, sig);
7951 memset (&m, 0, sizeof (m));
7959 mono_marshal_set_callconv_from_modopt (method, csig);
7961 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7963 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7968 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7971 for (i = sig->param_count; i >= 0; i--)
7973 mono_metadata_free_marshal_spec (mspecs [i]);
7976 return mono_compile_method (method);
7979 sig = mono_method_signature (method);
7980 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7982 param_count = sig->param_count + sig->hasthis;
7984 for (i = 0; i < param_count; i++)
7985 mono_mb_emit_ldarg (mb, i);
7987 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7988 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7990 mono_mb_emit_op (mb, CEE_CALL, method);
7991 mono_mb_emit_byte (mb, CEE_RET);
7996 method = mono_mb_create (mb, sig, param_count, NULL);
7999 return mono_compile_method (method);
8003 * This does the equivalent of mono_object_castclass_with_cache.
8004 * The wrapper info for the wrapper is a WrapperInfo structure.
8007 mono_marshal_get_castclass_with_cache (void)
8009 static MonoMethod *cached;
8011 MonoMethodBuilder *mb;
8012 MonoMethodSignature *sig;
8013 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8019 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8020 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8021 sig->params [0] = &mono_defaults.object_class->byval_arg;
8022 sig->params [1] = &mono_defaults.int_class->byval_arg;
8023 sig->params [2] = &mono_defaults.int_class->byval_arg;
8024 sig->ret = &mono_defaults.object_class->byval_arg;
8028 /* allocate local 0 (pointer) obj_vtable */
8029 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8032 mono_mb_emit_ldarg (mb, 0);
8033 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8035 /*obj_vtable = obj->vtable;*/
8036 mono_mb_emit_ldarg (mb, 0);
8037 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8038 mono_mb_emit_byte (mb, CEE_LDIND_I);
8039 mono_mb_emit_stloc (mb, 0);
8042 mono_mb_emit_ldarg (mb, 2);
8043 mono_mb_emit_byte (mb, CEE_LDIND_I);
8044 mono_mb_emit_ldloc (mb, 0);
8046 /*if (*cache == obj_vtable)*/
8047 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8050 mono_mb_emit_ldarg (mb, 0);
8051 mono_mb_emit_byte (mb, CEE_RET);
8053 mono_mb_patch_branch (mb, cache_miss_pos);
8054 /*if (mono_object_isinst (obj, klass)) */
8055 mono_mb_emit_ldarg (mb, 0);
8056 mono_mb_emit_ldarg (mb, 1);
8057 mono_mb_emit_icall (mb, mono_object_isinst);
8058 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8060 /**cache = obj_vtable;*/
8061 mono_mb_emit_ldarg (mb, 2);
8062 mono_mb_emit_ldloc (mb, 0);
8063 mono_mb_emit_byte (mb, CEE_STIND_I);
8066 mono_mb_emit_ldarg (mb, 0);
8067 mono_mb_emit_byte (mb, CEE_RET);
8070 mono_mb_patch_branch (mb, invalid_cast_pos);
8071 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8074 mono_mb_patch_branch (mb, return_null_pos);
8075 mono_mb_emit_byte (mb, CEE_LDNULL);
8076 mono_mb_emit_byte (mb, CEE_RET);
8077 #endif /* DISABLE_JIT */
8079 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8080 res = mono_mb_create (mb, sig, 8, info);
8083 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8084 mono_free_method (res);
8085 mono_metadata_free_method_signature (sig);
8093 * This does the equivalent of mono_object_isinst_with_cache.
8094 * The wrapper info for the wrapper is a WrapperInfo structure.
8097 mono_marshal_get_isinst_with_cache (void)
8099 static MonoMethod *cached;
8101 MonoMethodBuilder *mb;
8102 MonoMethodSignature *sig;
8103 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8109 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8110 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8111 sig->params [0] = &mono_defaults.object_class->byval_arg;
8112 sig->params [1] = &mono_defaults.int_class->byval_arg;
8113 sig->params [2] = &mono_defaults.int_class->byval_arg;
8114 sig->ret = &mono_defaults.object_class->byval_arg;
8118 /* allocate local 0 (pointer) obj_vtable */
8119 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8120 /* allocate local 1 (pointer) cached_vtable */
8121 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8124 mono_mb_emit_ldarg (mb, 0);
8125 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8127 /*obj_vtable = obj->vtable;*/
8128 mono_mb_emit_ldarg (mb, 0);
8129 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8130 mono_mb_emit_byte (mb, CEE_LDIND_I);
8131 mono_mb_emit_stloc (mb, 0);
8133 /* cached_vtable = *cache*/
8134 mono_mb_emit_ldarg (mb, 2);
8135 mono_mb_emit_byte (mb, CEE_LDIND_I);
8136 mono_mb_emit_stloc (mb, 1);
8138 mono_mb_emit_ldloc (mb, 1);
8139 mono_mb_emit_byte (mb, CEE_LDC_I4);
8140 mono_mb_emit_i4 (mb, ~0x1);
8141 mono_mb_emit_byte (mb, CEE_CONV_I);
8142 mono_mb_emit_byte (mb, CEE_AND);
8143 mono_mb_emit_ldloc (mb, 0);
8144 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8145 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8147 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8148 mono_mb_emit_ldloc (mb, 1);
8149 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8150 mono_mb_emit_byte (mb, CEE_CONV_U);
8151 mono_mb_emit_byte (mb, CEE_AND);
8152 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8155 mono_mb_emit_ldarg (mb, 0);
8156 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8159 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8160 mono_mb_emit_byte (mb, CEE_LDNULL);
8162 mono_mb_patch_branch (mb, cache_hit_pos);
8163 mono_mb_emit_byte (mb, CEE_RET);
8165 mono_mb_patch_branch (mb, cache_miss_pos);
8166 /*if (mono_object_isinst (obj, klass)) */
8167 mono_mb_emit_ldarg (mb, 0);
8168 mono_mb_emit_ldarg (mb, 1);
8169 mono_mb_emit_icall (mb, mono_object_isinst);
8170 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8172 /**cache = obj_vtable;*/
8173 mono_mb_emit_ldarg (mb, 2);
8174 mono_mb_emit_ldloc (mb, 0);
8175 mono_mb_emit_byte (mb, CEE_STIND_I);
8178 mono_mb_emit_ldarg (mb, 0);
8179 mono_mb_emit_byte (mb, CEE_RET);
8182 mono_mb_patch_branch (mb, not_an_instance_pos);
8183 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8184 mono_mb_emit_ldarg (mb, 2);
8185 /*obj_vtable | 0x1*/
8186 mono_mb_emit_ldloc (mb, 0);
8187 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8188 mono_mb_emit_byte (mb, CEE_CONV_U);
8189 mono_mb_emit_byte (mb, CEE_OR);
8192 mono_mb_emit_byte (mb, CEE_STIND_I);
8195 mono_mb_patch_branch (mb, return_null_pos);
8196 mono_mb_emit_byte (mb, CEE_LDNULL);
8197 mono_mb_emit_byte (mb, CEE_RET);
8200 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8201 res = mono_mb_create (mb, sig, 8, info);
8204 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8205 mono_free_method (res);
8206 mono_metadata_free_method_signature (sig);
8214 * mono_marshal_get_isinst:
8215 * @klass: the type of the field
8217 * This method generates a function which can be used to check if an object is
8218 * an instance of the given type, icluding the case where the object is a proxy.
8219 * The generated function has the following signature:
8220 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8223 mono_marshal_get_isinst (MonoClass *klass)
8225 static MonoMethodSignature *isint_sig = NULL;
8229 int pos_was_ok, pos_end;
8230 #ifndef DISABLE_REMOTING
8231 int pos_end2, pos_failed;
8234 MonoMethodBuilder *mb;
8236 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8237 if ((res = mono_marshal_find_in_cache (cache, klass)))
8241 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8242 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8243 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8244 isint_sig->pinvoke = 0;
8247 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8248 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8251 mb->method->save_lmf = 1;
8254 /* check if the object is a proxy that needs special cast */
8255 mono_mb_emit_ldarg (mb, 0);
8256 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8257 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8259 /* The result of MONO_CISINST can be:
8260 0) the type check succeeded
8261 1) the type check did not succeed
8262 2) a CanCastTo call is needed */
8263 #ifndef DISABLE_REMOTING
8264 mono_mb_emit_byte (mb, CEE_DUP);
8265 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8267 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8268 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8270 /* get the real proxy from the transparent proxy*/
8272 mono_mb_emit_ldarg (mb, 0);
8273 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8274 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8278 mono_mb_patch_branch (mb, pos_failed);
8279 mono_mb_emit_byte (mb, CEE_LDNULL);
8280 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8284 mono_mb_patch_branch (mb, pos_was_ok);
8285 mono_mb_emit_byte (mb, CEE_POP);
8286 mono_mb_emit_ldarg (mb, 0);
8290 mono_mb_patch_branch (mb, pos_end);
8291 mono_mb_patch_branch (mb, pos_end2);
8292 mono_mb_emit_byte (mb, CEE_RET);
8294 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8298 mono_mb_emit_byte (mb, CEE_LDNULL);
8299 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8303 mono_mb_patch_branch (mb, pos_was_ok);
8304 mono_mb_emit_ldarg (mb, 0);
8308 mono_mb_patch_branch (mb, pos_end);
8309 mono_mb_emit_byte (mb, CEE_RET);
8310 #endif /* DISABLE_REMOTING */
8311 #endif /* DISABLE_JIT */
8313 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8314 info->d.proxy.klass = klass;
8315 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8322 * mono_marshal_get_castclass:
8323 * @klass: the type of the field
8325 * This method generates a function which can be used to cast an object to
8326 * an instance of the given type, icluding the case where the object is a proxy.
8327 * The generated function has the following signature:
8328 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8329 * The wrapper info for the wrapper is a WrapperInfo structure.
8332 mono_marshal_get_castclass (MonoClass *klass)
8334 static MonoMethodSignature *castclass_sig = NULL;
8337 #ifndef DISABLE_REMOTING
8338 int pos_was_ok, pos_was_ok2;
8341 MonoMethodBuilder *mb;
8344 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8345 if ((res = mono_marshal_find_in_cache (cache, klass)))
8348 if (!castclass_sig) {
8349 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8350 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8351 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8352 castclass_sig->pinvoke = 0;
8355 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8356 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8359 mb->method->save_lmf = 1;
8362 /* check if the object is a proxy that needs special cast */
8363 mono_mb_emit_ldarg (mb, 0);
8364 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8365 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8367 /* The result of MONO_CCASTCLASS can be:
8368 0) the cast is valid
8369 1) cast of unknown proxy type
8370 or an exception if the cast is is invalid
8372 #ifndef DISABLE_REMOTING
8373 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8375 /* get the real proxy from the transparent proxy*/
8377 mono_mb_emit_ldarg (mb, 0);
8378 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8379 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8382 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8385 mono_mb_patch_branch (mb, pos_was_ok);
8386 mono_mb_patch_branch (mb, pos_was_ok2);
8388 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8389 mono_mb_emit_byte (mb, CEE_POP);
8390 #endif /* DISABLE_REMOTING */
8392 mono_mb_emit_ldarg (mb, 0);
8395 mono_mb_emit_byte (mb, CEE_RET);
8396 #endif /* DISABLE_JIT */
8398 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8400 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8408 * mono_marshal_get_struct_to_ptr:
8411 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8412 * The wrapper info for the wrapper is a WrapperInfo structure.
8415 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8417 MonoMethodBuilder *mb;
8418 static MonoMethod *stoptr = NULL;
8422 g_assert (klass != NULL);
8424 mono_marshal_load_type_info (klass);
8426 if (klass->marshal_info->str_to_ptr)
8427 return klass->marshal_info->str_to_ptr;
8430 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8433 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8436 if (klass->blittable) {
8437 mono_mb_emit_byte (mb, CEE_LDARG_1);
8438 mono_mb_emit_byte (mb, CEE_LDARG_0);
8439 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8440 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8441 mono_mb_emit_byte (mb, CEE_PREFIX1);
8442 mono_mb_emit_byte (mb, CEE_CPBLK);
8445 /* allocate local 0 (pointer) src_ptr */
8446 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8447 /* allocate local 1 (pointer) dst_ptr */
8448 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8449 /* allocate local 2 (boolean) delete_old */
8450 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8451 mono_mb_emit_byte (mb, CEE_LDARG_2);
8452 mono_mb_emit_stloc (mb, 2);
8454 /* initialize src_ptr to point to the start of object data */
8455 mono_mb_emit_byte (mb, CEE_LDARG_0);
8456 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8457 mono_mb_emit_stloc (mb, 0);
8459 /* initialize dst_ptr */
8460 mono_mb_emit_byte (mb, CEE_LDARG_1);
8461 mono_mb_emit_stloc (mb, 1);
8463 emit_struct_conv (mb, klass, FALSE);
8466 mono_mb_emit_byte (mb, CEE_RET);
8468 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8469 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8472 klass->marshal_info->str_to_ptr = res;
8477 * mono_marshal_get_ptr_to_struct:
8480 * generates IL code for PtrToStructure (IntPtr src, object structure)
8481 * The wrapper info for the wrapper is a WrapperInfo structure.
8484 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8486 MonoMethodBuilder *mb;
8487 static MonoMethodSignature *ptostr = NULL;
8491 g_assert (klass != NULL);
8493 mono_marshal_load_type_info (klass);
8495 if (klass->marshal_info->ptr_to_str)
8496 return klass->marshal_info->ptr_to_str;
8499 MonoMethodSignature *sig;
8501 /* Create the signature corresponding to
8502 static void PtrToStructure (IntPtr ptr, object structure);
8503 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8504 sig = mono_create_icall_signature ("void ptr object");
8505 sig = signature_dup (mono_defaults.corlib, sig);
8507 mono_memory_barrier ();
8511 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8514 if (klass->blittable) {
8515 mono_mb_emit_byte (mb, CEE_LDARG_1);
8516 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8517 mono_mb_emit_byte (mb, CEE_LDARG_0);
8518 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8519 mono_mb_emit_byte (mb, CEE_PREFIX1);
8520 mono_mb_emit_byte (mb, CEE_CPBLK);
8523 /* allocate local 0 (pointer) src_ptr */
8524 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8525 /* allocate local 1 (pointer) dst_ptr */
8526 mono_mb_add_local (mb, &klass->this_arg);
8528 /* initialize src_ptr to point to the start of object data */
8529 mono_mb_emit_byte (mb, CEE_LDARG_0);
8530 mono_mb_emit_stloc (mb, 0);
8532 /* initialize dst_ptr */
8533 mono_mb_emit_byte (mb, CEE_LDARG_1);
8534 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8535 mono_mb_emit_stloc (mb, 1);
8537 emit_struct_conv (mb, klass, TRUE);
8540 mono_mb_emit_byte (mb, CEE_RET);
8542 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8543 res = mono_mb_create (mb, ptostr, 0, info);
8546 klass->marshal_info->ptr_to_str = res;
8551 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8552 * This is used to avoid infinite recursion since it is hard to determine where to
8553 * replace a method with its synchronized wrapper, and where not.
8554 * The runtime should execute METHOD instead of the wrapper.
8555 * The wrapper info for the wrapper is a WrapperInfo structure.
8558 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8560 MonoMethodBuilder *mb;
8562 MonoMethodSignature *sig;
8564 MonoGenericContext *ctx = NULL;
8565 MonoGenericContainer *container = NULL;
8567 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8568 ctx = &((MonoMethodInflated*)method)->context;
8569 method = ((MonoMethodInflated*)method)->declaring;
8570 container = mono_method_get_generic_container (method);
8572 container = method->klass->generic_container;
8573 g_assert (container);
8576 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8578 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8579 mono_mb_emit_byte (mb, CEE_RET);
8581 sig = signature_dup (method->klass->image, mono_method_signature (method));
8583 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8584 info->d.synchronized_inner.method = method;
8585 res = mono_mb_create (mb, sig, 0, info);
8589 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8590 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8596 * generates IL code for the synchronized wrapper: the generated method
8597 * calls METHOD while locking 'this' or the parent type.
8600 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8602 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8603 MonoMethodSignature *sig;
8604 MonoExceptionClause *clause;
8605 MonoMethodBuilder *mb;
8608 int i, pos, this_local, ret_local = 0;
8609 MonoGenericContext *ctx = NULL;
8610 MonoMethod *orig_method = NULL;
8611 MonoGenericContainer *container = NULL;
8615 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8618 /* FIXME: Support generic methods too */
8619 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8620 orig_method = method;
8621 ctx = &((MonoMethodInflated*)method)->context;
8622 method = ((MonoMethodInflated*)method)->declaring;
8623 container = mono_method_get_generic_container (method);
8625 container = method->klass->generic_container;
8626 g_assert (container);
8633 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8634 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8638 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8639 if ((res = mono_marshal_find_in_cache (cache, method)))
8643 sig = signature_dup (method->klass->image, mono_method_signature (method));
8646 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8650 if (!MONO_TYPE_IS_VOID (sig->ret))
8651 ret_local = mono_mb_add_local (mb, sig->ret);
8654 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8655 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8657 /* This will throw the type load exception when the wrapper is compiled */
8658 mono_mb_emit_byte (mb, CEE_LDNULL);
8659 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8660 mono_mb_emit_byte (mb, CEE_POP);
8662 if (!MONO_TYPE_IS_VOID (sig->ret))
8663 mono_mb_emit_ldloc (mb, ret_local);
8664 mono_mb_emit_byte (mb, CEE_RET);
8667 res = mono_mb_create_and_cache (cache, method,
8668 mb, sig, sig->param_count + 16);
8676 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8678 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8679 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8682 mono_marshal_lock ();
8684 if (!enter_method) {
8685 MonoMethodDesc *desc;
8687 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8688 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8689 g_assert (enter_method);
8690 mono_method_desc_free (desc);
8692 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8693 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8694 g_assert (exit_method);
8695 mono_method_desc_free (desc);
8697 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8698 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8699 g_assert (gettypefromhandle_method);
8700 mono_method_desc_free (desc);
8703 mono_marshal_unlock ();
8706 /* Push this or the type object */
8707 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8708 /* We have special handling for this in the JIT */
8709 int index = mono_mb_add_data (mb, method->klass);
8710 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8711 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8712 mono_mb_emit_i4 (mb, index);
8714 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8717 mono_mb_emit_ldarg (mb, 0);
8718 mono_mb_emit_stloc (mb, this_local);
8720 /* Call Monitor::Enter() */
8721 mono_mb_emit_ldloc (mb, this_local);
8722 mono_mb_emit_managed_call (mb, enter_method, NULL);
8724 clause->try_offset = mono_mb_get_label (mb);
8726 /* Call the method */
8728 mono_mb_emit_ldarg (mb, 0);
8729 for (i = 0; i < sig->param_count; i++)
8730 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8734 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8735 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8737 mono_mb_emit_managed_call (mb, method, NULL);
8740 if (!MONO_TYPE_IS_VOID (sig->ret))
8741 mono_mb_emit_stloc (mb, ret_local);
8743 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8745 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8746 clause->handler_offset = mono_mb_get_label (mb);
8748 /* Call Monitor::Exit() */
8749 mono_mb_emit_ldloc (mb, this_local);
8750 mono_mb_emit_managed_call (mb, exit_method, NULL);
8751 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8753 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8755 mono_mb_patch_branch (mb, pos);
8756 if (!MONO_TYPE_IS_VOID (sig->ret))
8757 mono_mb_emit_ldloc (mb, ret_local);
8758 mono_mb_emit_byte (mb, CEE_RET);
8760 mono_mb_set_clauses (mb, 1, clause);
8765 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8766 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8768 res = mono_mb_create_and_cache (cache, method,
8769 mb, sig, sig->param_count + 16);
8778 * the returned method calls 'method' unboxing the this argument
8781 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8783 MonoMethodSignature *sig = mono_method_signature (method);
8785 MonoMethodBuilder *mb;
8789 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8790 if ((res = mono_marshal_find_in_cache (cache, method)))
8793 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8795 g_assert (sig->hasthis);
8798 mono_mb_emit_ldarg (mb, 0);
8799 mono_mb_emit_icon (mb, sizeof (MonoObject));
8800 mono_mb_emit_byte (mb, CEE_ADD);
8801 for (i = 0; i < sig->param_count; ++i)
8802 mono_mb_emit_ldarg (mb, i + 1);
8803 mono_mb_emit_managed_call (mb, method, NULL);
8804 mono_mb_emit_byte (mb, CEE_RET);
8807 res = mono_mb_create_and_cache (cache, method,
8808 mb, sig, sig->param_count + 16);
8811 /* code_for (res); */
8817 STELEMREF_OBJECT, /*no check at all*/
8818 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8819 STELEMREF_CLASS, /*only the klass->parents check*/
8820 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8821 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8822 STELEMREF_KIND_COUNT
8825 static const char *strelemref_wrapper_name[] = {
8826 "object", "sealed_class", "class", "interface", "complex"
8830 is_monomorphic_array (MonoClass *klass)
8832 MonoClass *element_class;
8833 if (klass->rank != 1)
8836 element_class = klass->element_class;
8837 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8841 get_virtual_stelemref_kind (MonoClass *element_class)
8843 if (element_class == mono_defaults.object_class)
8844 return STELEMREF_OBJECT;
8845 if (is_monomorphic_array (element_class))
8846 return STELEMREF_SEALED_CLASS;
8847 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8848 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8849 #ifdef COMPRESSED_INTERFACE_BITMAP
8850 return STELEMREF_COMPLEX;
8852 return STELEMREF_INTERFACE;
8854 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8855 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8856 return STELEMREF_COMPLEX;
8857 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8858 return STELEMREF_SEALED_CLASS;
8859 return STELEMREF_CLASS;
8865 load_array_element_address (MonoMethodBuilder *mb)
8867 mono_mb_emit_ldarg (mb, 0);
8868 mono_mb_emit_ldarg (mb, 1);
8869 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8873 load_array_class (MonoMethodBuilder *mb, int aklass)
8875 mono_mb_emit_ldarg (mb, 0);
8876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8877 mono_mb_emit_byte (mb, CEE_LDIND_I);
8878 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8879 mono_mb_emit_byte (mb, CEE_LDIND_I);
8880 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8881 mono_mb_emit_byte (mb, CEE_LDIND_I);
8882 mono_mb_emit_stloc (mb, aklass);
8886 load_value_class (MonoMethodBuilder *mb, int vklass)
8888 mono_mb_emit_ldarg (mb, 2);
8889 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8890 mono_mb_emit_byte (mb, CEE_LDIND_I);
8891 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8892 mono_mb_emit_byte (mb, CEE_LDIND_I);
8893 mono_mb_emit_stloc (mb, vklass);
8899 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8901 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8902 printf ("slow vstore of %s\n", name);
8908 * The wrapper info for the wrapper is a WrapperInfo structure.
8911 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8912 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8913 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8914 * - Add a case for arrays of arrays.
8917 get_virtual_stelemref_wrapper (int kind)
8919 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8920 static MonoMethodSignature *signature;
8921 MonoMethodBuilder *mb;
8924 const char *param_names [16];
8926 int aklass, vklass, vtable, uiid;
8927 int array_slot_addr;
8930 if (cached_methods [kind])
8931 return cached_methods [kind];
8933 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8934 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8938 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8940 /* void this::stelemref (size_t idx, void* value) */
8941 sig->ret = &mono_defaults.void_class->byval_arg;
8942 sig->hasthis = TRUE;
8943 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8944 sig->params [1] = &mono_defaults.object_class->byval_arg;
8949 param_names [0] = "index";
8950 param_names [1] = "value";
8951 mono_mb_set_param_names (mb, param_names);
8953 /*For now simply call plain old stelemref*/
8955 case STELEMREF_OBJECT:
8956 /* ldelema (implicit bound check) */
8957 load_array_element_address (mb);
8959 mono_mb_emit_ldarg (mb, 2);
8960 mono_mb_emit_byte (mb, CEE_STIND_REF);
8961 mono_mb_emit_byte (mb, CEE_RET);
8964 case STELEMREF_COMPLEX:
8966 <ldelema (bound check)>
8969 if (!mono_object_isinst (value, aklass))
8973 *array_slot_addr = value;
8976 throw new ArrayTypeMismatchException ();
8979 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8980 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8984 /*Use this to debug/record stores that are going thru the slow path*/
8985 MonoMethodSignature *csig;
8986 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8987 csig->ret = &mono_defaults.void_class->byval_arg;
8988 csig->params [0] = &mono_defaults.object_class->byval_arg;
8989 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8990 csig->params [2] = &mono_defaults.object_class->byval_arg;
8991 mono_mb_emit_ldarg (mb, 0);
8992 mono_mb_emit_ldarg (mb, 1);
8993 mono_mb_emit_ldarg (mb, 2);
8994 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
8998 /* ldelema (implicit bound check) */
8999 load_array_element_address (mb);
9000 mono_mb_emit_stloc (mb, array_slot_addr);
9002 /* if (!value) goto do_store */
9003 mono_mb_emit_ldarg (mb, 2);
9004 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9006 /* aklass = array->vtable->klass->element_class */
9007 load_array_class (mb, aklass);
9009 /*if (mono_object_isinst (value, aklass)) */
9010 mono_mb_emit_ldarg (mb, 2);
9011 mono_mb_emit_ldloc (mb, aklass);
9012 mono_mb_emit_icall (mb, mono_object_isinst);
9013 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9016 mono_mb_patch_branch (mb, b1);
9017 mono_mb_emit_ldloc (mb, array_slot_addr);
9018 mono_mb_emit_ldarg (mb, 2);
9019 mono_mb_emit_byte (mb, CEE_STIND_REF);
9020 mono_mb_emit_byte (mb, CEE_RET);
9023 mono_mb_patch_branch (mb, b2);
9025 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9028 case STELEMREF_SEALED_CLASS:
9030 <ldelema (bound check)>
9034 aklass = array->vtable->klass->element_class;
9035 vklass = value->vtable->klass;
9037 if (vklass != aklass)
9041 *array_slot_addr = value;
9044 throw new ArrayTypeMismatchException ();
9046 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9047 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9048 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9051 /* ldelema (implicit bound check) */
9052 load_array_element_address (mb);
9053 mono_mb_emit_stloc (mb, array_slot_addr);
9055 /* if (!value) goto do_store */
9056 mono_mb_emit_ldarg (mb, 2);
9057 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9059 /* aklass = array->vtable->klass->element_class */
9060 load_array_class (mb, aklass);
9062 /* vklass = value->vtable->klass */
9063 load_value_class (mb, vklass);
9065 /*if (vklass != aklass) goto do_exception; */
9066 mono_mb_emit_ldloc (mb, aklass);
9067 mono_mb_emit_ldloc (mb, vklass);
9068 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9071 mono_mb_patch_branch (mb, b1);
9072 mono_mb_emit_ldloc (mb, array_slot_addr);
9073 mono_mb_emit_ldarg (mb, 2);
9074 mono_mb_emit_byte (mb, CEE_STIND_REF);
9075 mono_mb_emit_byte (mb, CEE_RET);
9078 mono_mb_patch_branch (mb, b2);
9079 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9082 case STELEMREF_CLASS:
9085 <ldelema (bound check)>
9089 aklass = array->vtable->klass->element_class;
9090 vklass = value->vtable->klass;
9092 if (vklass->idepth < aklass->idepth)
9095 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9099 *array_slot_addr = value;
9103 throw new ArrayTypeMismatchException ();
9105 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9106 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9107 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9109 /* ldelema (implicit bound check) */
9110 load_array_element_address (mb);
9111 mono_mb_emit_stloc (mb, array_slot_addr);
9113 /* if (!value) goto do_store */
9114 mono_mb_emit_ldarg (mb, 2);
9115 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9117 /* aklass = array->vtable->klass->element_class */
9118 load_array_class (mb, aklass);
9120 /* vklass = value->vtable->klass */
9121 load_value_class (mb, vklass);
9123 /*if (mono_object_isinst (value, aklass)) */
9124 mono_mb_emit_ldarg (mb, 2);
9125 mono_mb_emit_ldloc (mb, aklass);
9126 mono_mb_emit_icall (mb, mono_object_isinst);
9127 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9129 /* if (vklass->idepth < aklass->idepth) goto failue */
9130 mono_mb_emit_ldloc (mb, vklass);
9131 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9132 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9134 mono_mb_emit_ldloc (mb, aklass);
9135 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9136 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9138 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9140 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9141 mono_mb_emit_ldloc (mb, vklass);
9142 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9143 mono_mb_emit_byte (mb, CEE_LDIND_I);
9145 mono_mb_emit_ldloc (mb, aklass);
9146 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9147 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9148 mono_mb_emit_icon (mb, 1);
9149 mono_mb_emit_byte (mb, CEE_SUB);
9150 mono_mb_emit_icon (mb, sizeof (void*));
9151 mono_mb_emit_byte (mb, CEE_MUL);
9152 mono_mb_emit_byte (mb, CEE_ADD);
9153 mono_mb_emit_byte (mb, CEE_LDIND_I);
9155 mono_mb_emit_ldloc (mb, aklass);
9156 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9159 mono_mb_patch_branch (mb, b1);
9160 mono_mb_emit_ldloc (mb, array_slot_addr);
9161 mono_mb_emit_ldarg (mb, 2);
9162 mono_mb_emit_byte (mb, CEE_STIND_REF);
9163 mono_mb_emit_byte (mb, CEE_RET);
9166 mono_mb_patch_branch (mb, b2);
9167 mono_mb_patch_branch (mb, b3);
9169 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9172 case STELEMREF_INTERFACE:
9179 klass = array->obj.vtable->klass->element_class;
9181 uiid = klass->interface_id;
9182 if (uiid > vt->max_interface_id)
9184 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9187 mono_array_setref (array, index, value);
9190 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9192 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9193 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9194 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9195 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9197 /* ldelema (implicit bound check) */
9198 load_array_element_address (mb);
9199 mono_mb_emit_stloc (mb, array_slot_addr);
9201 /* if (!value) goto do_store */
9202 mono_mb_emit_ldarg (mb, 2);
9203 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9205 /* klass = array->vtable->klass->element_class */
9206 load_array_class (mb, aklass);
9208 /* vt = value->vtable */
9209 mono_mb_emit_ldarg (mb, 2);
9210 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9211 mono_mb_emit_byte (mb, CEE_LDIND_I);
9212 mono_mb_emit_stloc (mb, vtable);
9214 /* uiid = klass->interface_id; */
9215 mono_mb_emit_ldloc (mb, aklass);
9216 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9217 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9218 mono_mb_emit_stloc (mb, uiid);
9220 /*if (uiid > vt->max_interface_id)*/
9221 mono_mb_emit_ldloc (mb, uiid);
9222 mono_mb_emit_ldloc (mb, vtable);
9223 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9224 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9225 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9227 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9229 /*vt->interface_bitmap*/
9230 mono_mb_emit_ldloc (mb, vtable);
9231 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9232 mono_mb_emit_byte (mb, CEE_LDIND_I);
9235 mono_mb_emit_ldloc (mb, uiid);
9236 mono_mb_emit_icon (mb, 3);
9237 mono_mb_emit_byte (mb, CEE_SHR_UN);
9239 /*vt->interface_bitmap [(uiid) >> 3]*/
9240 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9241 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9243 /*(1 << ((uiid)&7)))*/
9244 mono_mb_emit_icon (mb, 1);
9245 mono_mb_emit_ldloc (mb, uiid);
9246 mono_mb_emit_icon (mb, 7);
9247 mono_mb_emit_byte (mb, CEE_AND);
9248 mono_mb_emit_byte (mb, CEE_SHL);
9250 /*bitwise and the whole thing*/
9251 mono_mb_emit_byte (mb, CEE_AND);
9252 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9255 mono_mb_patch_branch (mb, b1);
9256 mono_mb_emit_ldloc (mb, array_slot_addr);
9257 mono_mb_emit_ldarg (mb, 2);
9258 mono_mb_emit_byte (mb, CEE_STIND_REF);
9259 mono_mb_emit_byte (mb, CEE_RET);
9262 mono_mb_patch_branch (mb, b2);
9263 mono_mb_patch_branch (mb, b3);
9264 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9268 mono_mb_emit_ldarg (mb, 0);
9269 mono_mb_emit_ldarg (mb, 1);
9270 mono_mb_emit_ldarg (mb, 2);
9271 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9272 mono_mb_emit_byte (mb, CEE_RET);
9275 #endif /* DISABLE_JIT */
9276 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9277 info->d.virtual_stelemref.kind = kind;
9278 res = mono_mb_create (mb, signature, 4, info);
9279 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9281 mono_marshal_lock ();
9282 if (!cached_methods [kind]) {
9283 cached_methods [kind] = res;
9284 mono_marshal_unlock ();
9286 mono_marshal_unlock ();
9287 mono_free_method (res);
9291 return cached_methods [kind];
9295 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9299 g_assert (array_class->rank == 1);
9300 kind = get_virtual_stelemref_kind (array_class->element_class);
9302 return get_virtual_stelemref_wrapper (kind);
9306 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9311 *nwrappers = STELEMREF_KIND_COUNT;
9312 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9313 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9314 res [i] = get_virtual_stelemref_wrapper (i);
9319 * The wrapper info for the wrapper is a WrapperInfo structure.
9322 mono_marshal_get_stelemref (void)
9324 static MonoMethod* ret = NULL;
9325 MonoMethodSignature *sig;
9326 MonoMethodBuilder *mb;
9329 guint32 b1, b2, b3, b4;
9332 int array_slot_addr;
9337 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9340 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9342 /* void stelemref (void* array, int idx, void* value) */
9343 sig->ret = &mono_defaults.void_class->byval_arg;
9344 sig->params [0] = &mono_defaults.object_class->byval_arg;
9345 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9346 sig->params [2] = &mono_defaults.object_class->byval_arg;
9349 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9350 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9351 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9355 <ldelema (bound check)>
9359 aklass = array->vtable->klass->element_class;
9360 vklass = value->vtable->klass;
9362 if (vklass->idepth < aklass->idepth)
9365 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9369 *array_slot_addr = value;
9373 if (mono_object_isinst (value, aklass))
9376 throw new ArrayTypeMismatchException ();
9379 /* ldelema (implicit bound check) */
9380 mono_mb_emit_ldarg (mb, 0);
9381 mono_mb_emit_ldarg (mb, 1);
9382 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9383 mono_mb_emit_stloc (mb, array_slot_addr);
9385 /* if (!value) goto do_store */
9386 mono_mb_emit_ldarg (mb, 2);
9387 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9389 /* aklass = array->vtable->klass->element_class */
9390 mono_mb_emit_ldarg (mb, 0);
9391 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9392 mono_mb_emit_byte (mb, CEE_LDIND_I);
9393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9394 mono_mb_emit_byte (mb, CEE_LDIND_I);
9395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9396 mono_mb_emit_byte (mb, CEE_LDIND_I);
9397 mono_mb_emit_stloc (mb, aklass);
9399 /* vklass = value->vtable->klass */
9400 mono_mb_emit_ldarg (mb, 2);
9401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9402 mono_mb_emit_byte (mb, CEE_LDIND_I);
9403 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9404 mono_mb_emit_byte (mb, CEE_LDIND_I);
9405 mono_mb_emit_stloc (mb, vklass);
9407 /* if (vklass->idepth < aklass->idepth) goto failue */
9408 mono_mb_emit_ldloc (mb, vklass);
9409 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9410 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9412 mono_mb_emit_ldloc (mb, aklass);
9413 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9414 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9416 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9418 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9419 mono_mb_emit_ldloc (mb, vklass);
9420 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9421 mono_mb_emit_byte (mb, CEE_LDIND_I);
9423 mono_mb_emit_ldloc (mb, aklass);
9424 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9425 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9426 mono_mb_emit_icon (mb, 1);
9427 mono_mb_emit_byte (mb, CEE_SUB);
9428 mono_mb_emit_icon (mb, sizeof (void*));
9429 mono_mb_emit_byte (mb, CEE_MUL);
9430 mono_mb_emit_byte (mb, CEE_ADD);
9431 mono_mb_emit_byte (mb, CEE_LDIND_I);
9433 mono_mb_emit_ldloc (mb, aklass);
9435 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9437 copy_pos = mono_mb_get_label (mb);
9439 mono_mb_patch_branch (mb, b1);
9440 mono_mb_emit_ldloc (mb, array_slot_addr);
9441 mono_mb_emit_ldarg (mb, 2);
9442 mono_mb_emit_byte (mb, CEE_STIND_REF);
9444 mono_mb_emit_byte (mb, CEE_RET);
9447 mono_mb_patch_branch (mb, b2);
9448 mono_mb_patch_branch (mb, b3);
9450 mono_mb_emit_ldarg (mb, 2);
9451 mono_mb_emit_ldloc (mb, aklass);
9452 mono_mb_emit_icall (mb, mono_object_isinst);
9454 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9455 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9456 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9458 mono_mb_emit_byte (mb, CEE_RET);
9460 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9461 ret = mono_mb_create (mb, sig, 4, info);
9468 * mono_marshal_get_gsharedvt_in_wrapper:
9470 * This wrapper handles calls from normal code to gsharedvt code.
9472 * The wrapper info for the wrapper is a WrapperInfo structure.
9475 mono_marshal_get_gsharedvt_in_wrapper (void)
9477 static MonoMethod* ret = NULL;
9478 MonoMethodSignature *sig;
9479 MonoMethodBuilder *mb;
9485 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9487 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9488 sig->ret = &mono_defaults.void_class->byval_arg;
9492 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9494 mono_mb_emit_byte (mb, CEE_RET);
9496 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9497 ret = mono_mb_create (mb, sig, 4, info);
9504 * mono_marshal_get_gsharedvt_out_wrapper:
9506 * This wrapper handles calls from gsharedvt code to normal code.
9508 * The wrapper info for the wrapper is a WrapperInfo structure.
9511 mono_marshal_get_gsharedvt_out_wrapper (void)
9513 static MonoMethod* ret = NULL;
9514 MonoMethodSignature *sig;
9515 MonoMethodBuilder *mb;
9521 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9523 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9524 sig->ret = &mono_defaults.void_class->byval_arg;
9528 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9530 mono_mb_emit_byte (mb, CEE_RET);
9532 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9533 ret = mono_mb_create (mb, sig, 4, info);
9545 /* LOCKING: vars accessed under the marshal lock */
9546 static ArrayElemAddr *elem_addr_cache = NULL;
9547 static int elem_addr_cache_size = 0;
9548 static int elem_addr_cache_next = 0;
9551 * mono_marshal_get_array_address:
9552 * @rank: rank of the array type
9553 * @elem_size: size in bytes of an element of an array.
9555 * Returns a MonoMethod that implements the code to get the address
9556 * of an element in a multi-dimenasional array of @rank dimensions.
9557 * The returned method takes an array as the first argument and then
9558 * @rank indexes for the @rank dimensions.
9559 * If ELEM_SIZE is 0, read the array size from the array object.
9562 mono_marshal_get_array_address (int rank, int elem_size)
9565 MonoMethodBuilder *mb;
9566 MonoMethodSignature *sig;
9569 int i, bounds, ind, realidx;
9570 int branch_pos, *branch_positions;
9574 mono_marshal_lock ();
9575 for (i = 0; i < elem_addr_cache_next; ++i) {
9576 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9577 ret = elem_addr_cache [i].method;
9581 mono_marshal_unlock ();
9585 branch_positions = g_new0 (int, rank);
9587 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9589 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9590 sig->ret = &mono_defaults.int_class->byval_arg;
9591 sig->params [0] = &mono_defaults.object_class->byval_arg;
9592 for (i = 0; i < rank; ++i) {
9593 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9596 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9597 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9601 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9602 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9603 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9605 /* bounds = array->bounds; */
9606 mono_mb_emit_ldarg (mb, 0);
9607 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9608 mono_mb_emit_byte (mb, CEE_LDIND_I);
9609 mono_mb_emit_stloc (mb, bounds);
9611 /* ind is the overall element index, realidx is the partial index in a single dimension */
9612 /* ind = idx0 - bounds [0].lower_bound */
9613 mono_mb_emit_ldarg (mb, 1);
9614 mono_mb_emit_ldloc (mb, bounds);
9615 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9616 mono_mb_emit_byte (mb, CEE_ADD);
9617 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9618 mono_mb_emit_byte (mb, CEE_SUB);
9619 mono_mb_emit_stloc (mb, ind);
9620 /* if (ind >= bounds [0].length) goto exeception; */
9621 mono_mb_emit_ldloc (mb, ind);
9622 mono_mb_emit_ldloc (mb, bounds);
9623 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9624 mono_mb_emit_byte (mb, CEE_ADD);
9625 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9626 /* note that we use unsigned comparison */
9627 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9629 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9630 * We could also decide to ignore the passed elem_size and get it
9631 * from the array object, to reduce the number of methods we generate:
9632 * the additional cost is 3 memory loads and a non-immediate mul.
9634 for (i = 1; i < rank; ++i) {
9635 /* realidx = idxi - bounds [i].lower_bound */
9636 mono_mb_emit_ldarg (mb, 1 + i);
9637 mono_mb_emit_ldloc (mb, bounds);
9638 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9639 mono_mb_emit_byte (mb, CEE_ADD);
9640 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9641 mono_mb_emit_byte (mb, CEE_SUB);
9642 mono_mb_emit_stloc (mb, realidx);
9643 /* if (realidx >= bounds [i].length) goto exeception; */
9644 mono_mb_emit_ldloc (mb, realidx);
9645 mono_mb_emit_ldloc (mb, bounds);
9646 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9647 mono_mb_emit_byte (mb, CEE_ADD);
9648 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9649 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9650 /* ind = ind * bounds [i].length + realidx */
9651 mono_mb_emit_ldloc (mb, ind);
9652 mono_mb_emit_ldloc (mb, bounds);
9653 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9654 mono_mb_emit_byte (mb, CEE_ADD);
9655 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9656 mono_mb_emit_byte (mb, CEE_MUL);
9657 mono_mb_emit_ldloc (mb, realidx);
9658 mono_mb_emit_byte (mb, CEE_ADD);
9659 mono_mb_emit_stloc (mb, ind);
9662 /* return array->vector + ind * element_size */
9663 mono_mb_emit_ldarg (mb, 0);
9664 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9665 mono_mb_emit_ldloc (mb, ind);
9667 mono_mb_emit_icon (mb, elem_size);
9669 /* Load arr->vtable->klass->sizes.element_class */
9670 mono_mb_emit_ldarg (mb, 0);
9671 mono_mb_emit_byte (mb, CEE_CONV_I);
9672 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9673 mono_mb_emit_byte (mb, CEE_ADD);
9674 mono_mb_emit_byte (mb, CEE_LDIND_I);
9675 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9676 mono_mb_emit_byte (mb, CEE_ADD);
9677 mono_mb_emit_byte (mb, CEE_LDIND_I);
9678 /* sizes is an union, so this reads sizes.element_size */
9679 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9680 mono_mb_emit_byte (mb, CEE_ADD);
9681 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9683 mono_mb_emit_byte (mb, CEE_MUL);
9684 mono_mb_emit_byte (mb, CEE_ADD);
9685 mono_mb_emit_byte (mb, CEE_RET);
9687 /* patch the branches to get here and throw */
9688 for (i = 1; i < rank; ++i) {
9689 mono_mb_patch_branch (mb, branch_positions [i]);
9691 mono_mb_patch_branch (mb, branch_pos);
9692 /* throw exception */
9693 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9695 g_free (branch_positions);
9696 #endif /* DISABLE_JIT */
9698 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9699 info->d.element_addr.rank = rank;
9700 info->d.element_addr.elem_size = elem_size;
9701 ret = mono_mb_create (mb, sig, 4, info);
9704 /* cache the result */
9706 mono_marshal_lock ();
9707 for (i = 0; i < elem_addr_cache_next; ++i) {
9708 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9709 /* FIXME: free ret */
9710 ret = elem_addr_cache [i].method;
9716 if (elem_addr_cache_next >= elem_addr_cache_size) {
9717 int new_size = elem_addr_cache_size + 4;
9718 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9719 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9720 g_free (elem_addr_cache);
9721 elem_addr_cache = new_array;
9722 elem_addr_cache_size = new_size;
9724 elem_addr_cache [elem_addr_cache_next].rank = rank;
9725 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9726 elem_addr_cache [elem_addr_cache_next].method = ret;
9727 elem_addr_cache_next ++;
9729 mono_marshal_unlock ();
9734 * mono_marshal_get_array_accessor_wrapper:
9736 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9739 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9741 MonoMethodSignature *sig;
9742 MonoMethodBuilder *mb;
9746 MonoGenericContext *ctx = NULL;
9747 MonoMethod *orig_method = NULL;
9748 MonoGenericContainer *container = NULL;
9752 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9753 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9754 * FIXME: Use generic methods.
9761 g_assert_not_reached ();
9763 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9764 if ((res = mono_marshal_find_in_cache (cache, method)))
9768 sig = signature_dup (method->klass->image, mono_method_signature (method));
9771 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9774 /* Call the method */
9776 mono_mb_emit_ldarg (mb, 0);
9777 for (i = 0; i < sig->param_count; i++)
9778 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9782 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9783 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9785 mono_mb_emit_managed_call (mb, method, NULL);
9787 mono_mb_emit_byte (mb, CEE_RET);
9792 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9793 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9795 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9796 info->d.array_accessor.method = method;
9798 res = mono_mb_create_and_cache_full (cache, method,
9799 mb, sig, sig->param_count + 16,
9808 mono_marshal_alloc (gulong size)
9813 res = CoTaskMemAlloc (size);
9815 res = g_try_malloc ((gulong)size);
9817 mono_gc_out_of_memory ((gulong)size);
9823 mono_marshal_free (gpointer ptr)
9826 CoTaskMemFree (ptr);
9833 mono_marshal_free_array (gpointer *ptr, int size)
9840 for (i = 0; i < size; i++)
9846 mono_marshal_string_to_utf16 (MonoString *s)
9848 return s ? mono_string_chars (s) : NULL;
9852 mono_marshal_string_to_utf16_copy (MonoString *s)
9857 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9858 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9859 res [mono_string_length (s)] = 0;
9865 * mono_marshal_set_last_error:
9867 * This function is invoked to set the last error value from a P/Invoke call
9868 * which has SetLastError set.
9871 mono_marshal_set_last_error (void)
9874 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9876 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9881 mono_marshal_set_last_error_windows (int error)
9884 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9889 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9890 gpointer dest, gint32 length)
9895 MONO_CHECK_ARG_NULL (src,);
9896 MONO_CHECK_ARG_NULL (dest,);
9898 if (src->obj.vtable->klass->rank != 1) {
9899 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9902 if (start_index < 0) {
9903 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9907 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9910 if (start_index + length > mono_array_length (src)) {
9911 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9915 element_size = mono_array_element_size (src->obj.vtable->klass);
9917 /* no references should be involved */
9918 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9920 memcpy (dest, source_addr, length * element_size);
9924 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9925 MonoArray *dest, gint32 length)
9930 MONO_CHECK_ARG_NULL (src,);
9931 MONO_CHECK_ARG_NULL (dest,);
9933 if (dest->obj.vtable->klass->rank != 1) {
9934 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9937 if (start_index < 0) {
9938 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9942 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9945 if (start_index + length > mono_array_length (dest)) {
9946 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9949 element_size = mono_array_element_size (dest->obj.vtable->klass);
9951 /* no references should be involved */
9952 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9954 memcpy (dest_addr, src, length * element_size);
9958 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9963 return mono_string_new (mono_domain_get (), ptr);
9967 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9970 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
9973 return mono_string_new_len (mono_domain_get (), ptr, len);
9978 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9980 MonoDomain *domain = mono_domain_get ();
9990 return mono_string_new_utf16 (domain, ptr, len);
9994 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9996 MonoDomain *domain = mono_domain_get ();
9999 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10002 return mono_string_new_utf16 (domain, ptr, len);
10007 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10009 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10013 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10019 MONO_CHECK_ARG_NULL (rtype, 0);
10021 type = rtype->type;
10022 klass = mono_class_from_mono_type (type);
10023 if (!mono_class_init (klass)) {
10024 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10028 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10030 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10031 return sizeof (gpointer);
10032 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10034 MonoException *exc;
10036 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10037 exc = mono_get_exception_argument ("t", msg);
10039 mono_set_pending_exception (exc);
10043 return mono_class_native_size (klass, NULL);
10047 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10049 MonoMethod *method;
10052 MONO_CHECK_ARG_NULL (obj,);
10053 MONO_CHECK_ARG_NULL (dst,);
10055 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10059 pa [2] = &delete_old;
10061 mono_runtime_invoke (method, NULL, pa, NULL);
10065 ptr_to_structure (gpointer src, MonoObject *dst)
10067 MonoMethod *method;
10070 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10075 mono_runtime_invoke (method, NULL, pa, NULL);
10079 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10083 MONO_CHECK_ARG_NULL (src,);
10084 MONO_CHECK_ARG_NULL (dst,);
10086 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10088 if (t->type == MONO_TYPE_VALUETYPE) {
10089 MonoException *exc;
10092 tmp = g_strdup_printf ("Destination is a boxed value type.");
10093 exc = mono_get_exception_argument ("dst", tmp);
10096 mono_set_pending_exception (exc);
10100 ptr_to_structure (src, dst);
10104 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10107 MonoDomain *domain = mono_domain_get ();
10112 MONO_CHECK_ARG_NULL (type, NULL);
10114 klass = mono_class_from_mono_type (type->type);
10115 if (!mono_class_init (klass)) {
10116 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10120 res = mono_object_new (domain, klass);
10122 ptr_to_structure (src, res);
10128 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10130 MonoMarshalType *info;
10133 int match_index = -1;
10135 MONO_CHECK_ARG_NULL (type, 0);
10136 MONO_CHECK_ARG_NULL (field_name, 0);
10138 fname = mono_string_to_utf8 (field_name);
10139 klass = mono_class_from_mono_type (type->type);
10140 if (!mono_class_init (klass)) {
10141 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10145 while (klass && match_index == -1) {
10146 MonoClassField* field;
10148 gpointer iter = NULL;
10149 while ((field = mono_class_get_fields (klass, &iter))) {
10150 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10152 if (!strcmp (fname, mono_field_get_name (field))) {
10159 if (match_index == -1)
10160 klass = klass->parent;
10165 if(match_index == -1) {
10166 MonoException* exc;
10169 /* Get back original class instance */
10170 klass = mono_class_from_mono_type (type->type);
10172 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10173 exc = mono_get_exception_argument ("fieldName", tmp);
10176 mono_set_pending_exception ((MonoException*)exc);
10180 info = mono_marshal_load_type_info (klass);
10181 return info->fields [match_index].offset;
10185 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10190 tres = mono_string_to_utf8 (string);
10194 len = strlen (tres) + 1;
10195 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10196 memcpy (ret, tres, len);
10201 return mono_string_to_utf8 (string);
10206 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10208 if (string == NULL)
10211 #ifdef TARGET_WIN32
10212 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10213 ((mono_string_length (string) + 1) * 2);
10215 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10217 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10218 res [mono_string_length (string)] = 0;
10224 mono_struct_delete_old (MonoClass *klass, char *ptr)
10226 MonoMarshalType *info;
10229 info = mono_marshal_load_type_info (klass);
10231 for (i = 0; i < info->num_fields; i++) {
10232 MonoMarshalConv conv;
10233 MonoType *ftype = info->fields [i].field->type;
10236 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10239 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10240 klass->unicode, &conv);
10242 cpos = ptr + info->fields [i].offset;
10245 case MONO_MARSHAL_CONV_NONE:
10246 if (MONO_TYPE_ISSTRUCT (ftype)) {
10247 mono_struct_delete_old (ftype->data.klass, cpos);
10251 case MONO_MARSHAL_CONV_STR_LPWSTR:
10252 /* We assume this field points inside a MonoString */
10254 case MONO_MARSHAL_CONV_STR_LPTSTR:
10255 #ifdef TARGET_WIN32
10256 /* We assume this field points inside a MonoString
10260 case MONO_MARSHAL_CONV_STR_LPSTR:
10261 case MONO_MARSHAL_CONV_STR_BSTR:
10262 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10263 case MONO_MARSHAL_CONV_STR_TBSTR:
10264 mono_marshal_free (*(gpointer *)cpos);
10274 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10278 MONO_CHECK_ARG_NULL (src,);
10279 MONO_CHECK_ARG_NULL (type,);
10281 klass = mono_class_from_mono_type (type->type);
10282 if (!mono_class_init (klass)) {
10283 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10287 mono_struct_delete_old (klass, (char *)src);
10291 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10295 if ((gulong)size == 0)
10296 /* This returns a valid pointer for size 0 on MS.NET */
10300 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10302 res = g_try_malloc ((gulong)size);
10305 mono_gc_out_of_memory ((gulong)size);
10311 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10316 mono_gc_out_of_memory ((gulong)size);
10321 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10323 res = g_try_realloc (ptr, (gulong)size);
10326 mono_gc_out_of_memory ((gulong)size);
10332 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10342 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10347 res = CoTaskMemAlloc (size);
10349 res = g_try_malloc ((gulong)size);
10352 mono_gc_out_of_memory ((gulong)size);
10357 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10360 CoTaskMemFree (ptr);
10367 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10372 res = CoTaskMemRealloc (ptr, size);
10374 res = g_try_realloc (ptr, (gulong)size);
10377 mono_gc_out_of_memory ((gulong)size);
10382 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10384 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10388 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10390 MonoClass *klass = mono_type_get_class (type->type);
10391 if (!mono_class_init (klass)) {
10392 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10396 return mono_ftnptr_to_delegate (klass, ftn);
10400 * mono_marshal_is_loading_type_info:
10402 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10406 mono_marshal_is_loading_type_info (MonoClass *klass)
10408 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10410 return g_slist_find (loads_list, klass) != NULL;
10414 * mono_marshal_load_type_info:
10416 * Initialize klass->marshal_info using information from metadata. This function can
10417 * recursively call itself, and the caller is responsible to avoid that by calling
10418 * mono_marshal_is_loading_type_info () beforehand.
10420 * LOCKING: Acquires the loader lock.
10423 mono_marshal_load_type_info (MonoClass* klass)
10426 guint32 native_size = 0, min_align = 1, packing;
10427 MonoMarshalType *info;
10428 MonoClassField* field;
10431 GSList *loads_list;
10433 g_assert (klass != NULL);
10435 if (klass->marshal_info)
10436 return klass->marshal_info;
10438 if (!klass->inited)
10439 mono_class_init (klass);
10441 if (klass->marshal_info)
10442 return klass->marshal_info;
10445 * This function can recursively call itself, so we keep the list of classes which are
10446 * under initialization in a TLS list.
10448 g_assert (!mono_marshal_is_loading_type_info (klass));
10449 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10450 loads_list = g_slist_prepend (loads_list, klass);
10451 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10454 while ((field = mono_class_get_fields (klass, &iter))) {
10455 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10457 if (mono_field_is_deleted (field))
10462 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10464 /* The mempool is protected by the loader lock */
10465 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10466 info->num_fields = count;
10468 /* Try to find a size for this type in metadata */
10469 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10471 if (klass->parent) {
10472 int parent_size = mono_class_native_size (klass->parent, NULL);
10474 /* Add parent size to real size */
10475 native_size += parent_size;
10476 info->native_size = parent_size;
10479 packing = klass->packing_size ? klass->packing_size : 8;
10482 while ((field = mono_class_get_fields (klass, &iter))) {
10486 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10489 if (mono_field_is_deleted (field))
10491 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10492 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10493 NULL, NULL, &info->fields [j].mspec);
10495 info->fields [j].field = field;
10497 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10498 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10499 /* This field is a hack inserted by MCS to empty structures */
10504 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10505 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10506 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10507 &align, TRUE, klass->unicode);
10508 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10509 min_align = MAX (align, min_align);
10510 info->fields [j].offset = info->native_size;
10511 info->fields [j].offset += align - 1;
10512 info->fields [j].offset &= ~(align - 1);
10513 info->native_size = info->fields [j].offset + size;
10515 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10516 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10517 &align, TRUE, klass->unicode);
10518 min_align = MAX (align, min_align);
10519 info->fields [j].offset = field->offset - sizeof (MonoObject);
10520 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10526 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10527 info->native_size = MAX (native_size, info->native_size);
10529 * If the provided Size is equal or larger than the calculated size, and there
10530 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10532 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10533 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10536 min_align = MIN (min_align, packing);
10540 if (info->native_size & (min_align - 1)) {
10541 info->native_size += min_align - 1;
10542 info->native_size &= ~(min_align - 1);
10545 info->min_align = min_align;
10547 /* Update the class's blittable info, if the layouts don't match */
10548 if (info->native_size != mono_class_value_size (klass, NULL))
10549 klass->blittable = FALSE;
10551 /* If this is an array type, ensure that we have element info */
10552 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10553 mono_marshal_load_type_info (klass->element_class);
10556 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10557 loads_list = g_slist_remove (loads_list, klass);
10558 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10560 mono_marshal_lock ();
10561 if (!klass->marshal_info) {
10562 /*We do double-checking locking on marshal_info */
10563 mono_memory_barrier ();
10564 klass->marshal_info = info;
10566 mono_marshal_unlock ();
10568 return klass->marshal_info;
10572 * mono_class_native_size:
10575 * Returns: the native size of an object instance (when marshaled
10576 * to unmanaged code)
10579 mono_class_native_size (MonoClass *klass, guint32 *align)
10581 if (!klass->marshal_info) {
10582 if (mono_marshal_is_loading_type_info (klass)) {
10587 mono_marshal_load_type_info (klass);
10592 *align = klass->marshal_info->min_align;
10594 return klass->marshal_info->native_size;
10598 * mono_type_native_stack_size:
10599 * @t: the type to return the size it uses on the stack
10601 * Returns: the number of bytes required to hold an instance of this
10602 * type on the native stack
10605 mono_type_native_stack_size (MonoType *t, guint32 *align)
10609 g_assert (t != NULL);
10615 *align = sizeof (gpointer);
10616 return sizeof (gpointer);
10620 case MONO_TYPE_BOOLEAN:
10621 case MONO_TYPE_CHAR:
10632 case MONO_TYPE_STRING:
10633 case MONO_TYPE_OBJECT:
10634 case MONO_TYPE_CLASS:
10635 case MONO_TYPE_SZARRAY:
10636 case MONO_TYPE_PTR:
10637 case MONO_TYPE_FNPTR:
10638 case MONO_TYPE_ARRAY:
10639 *align = sizeof (gpointer);
10640 return sizeof (gpointer);
10645 *align = MONO_ABI_ALIGNOF (double);
10649 *align = MONO_ABI_ALIGNOF (gint64);
10651 case MONO_TYPE_GENERICINST:
10652 if (!mono_type_generic_inst_is_valuetype (t)) {
10653 *align = sizeof (gpointer);
10654 return sizeof (gpointer);
10657 case MONO_TYPE_TYPEDBYREF:
10658 case MONO_TYPE_VALUETYPE: {
10660 MonoClass *klass = mono_class_from_mono_type (t);
10662 if (klass->enumtype)
10663 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10665 size = mono_class_native_size (klass, align);
10666 *align = *align + 3;
10676 g_error ("type 0x%02x unknown", t->type);
10682 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10683 gboolean as_field, gboolean unicode)
10685 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10688 switch (native_type) {
10689 case MONO_NATIVE_BOOLEAN:
10692 case MONO_NATIVE_I1:
10693 case MONO_NATIVE_U1:
10696 case MONO_NATIVE_I2:
10697 case MONO_NATIVE_U2:
10698 case MONO_NATIVE_VARIANTBOOL:
10701 case MONO_NATIVE_I4:
10702 case MONO_NATIVE_U4:
10703 case MONO_NATIVE_ERROR:
10706 case MONO_NATIVE_I8:
10707 case MONO_NATIVE_U8:
10708 *align = MONO_ABI_ALIGNOF (gint64);
10710 case MONO_NATIVE_R4:
10713 case MONO_NATIVE_R8:
10714 *align = MONO_ABI_ALIGNOF (double);
10716 case MONO_NATIVE_INT:
10717 case MONO_NATIVE_UINT:
10718 case MONO_NATIVE_LPSTR:
10719 case MONO_NATIVE_LPWSTR:
10720 case MONO_NATIVE_LPTSTR:
10721 case MONO_NATIVE_BSTR:
10722 case MONO_NATIVE_ANSIBSTR:
10723 case MONO_NATIVE_TBSTR:
10724 case MONO_NATIVE_LPARRAY:
10725 case MONO_NATIVE_SAFEARRAY:
10726 case MONO_NATIVE_IUNKNOWN:
10727 case MONO_NATIVE_IDISPATCH:
10728 case MONO_NATIVE_INTERFACE:
10729 case MONO_NATIVE_ASANY:
10730 case MONO_NATIVE_FUNC:
10731 case MONO_NATIVE_LPSTRUCT:
10732 *align = MONO_ABI_ALIGNOF (gpointer);
10733 return sizeof (gpointer);
10734 case MONO_NATIVE_STRUCT:
10735 klass = mono_class_from_mono_type (type);
10736 if (klass == mono_defaults.object_class &&
10737 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10741 return mono_class_native_size (klass, align);
10742 case MONO_NATIVE_BYVALTSTR: {
10743 int esize = unicode ? 2: 1;
10746 return mspec->data.array_data.num_elem * esize;
10748 case MONO_NATIVE_BYVALARRAY: {
10749 // FIXME: Have to consider ArraySubType
10751 klass = mono_class_from_mono_type (type);
10752 if (klass->element_class == mono_defaults.char_class) {
10753 esize = unicode ? 2 : 1;
10756 esize = mono_class_native_size (klass->element_class, align);
10759 return mspec->data.array_data.num_elem * esize;
10761 case MONO_NATIVE_CUSTOM:
10762 *align = sizeof (gpointer);
10763 return sizeof (gpointer);
10765 case MONO_NATIVE_CURRENCY:
10766 case MONO_NATIVE_VBBYREFSTR:
10768 g_error ("native type %02x not implemented", native_type);
10771 g_assert_not_reached ();
10776 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10784 t = &o->vtable->klass->byval_arg;
10788 case MONO_TYPE_PTR:
10791 case MONO_TYPE_BOOLEAN:
10794 case MONO_TYPE_CHAR:
10799 return mono_object_unbox (o);
10801 case MONO_TYPE_STRING:
10802 switch (string_encoding) {
10803 case MONO_NATIVE_LPWSTR:
10804 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10806 case MONO_NATIVE_LPSTR:
10807 return mono_string_to_lpstr ((MonoString*)o);
10810 g_warning ("marshaling conversion %d not implemented", string_encoding);
10811 g_assert_not_reached ();
10814 case MONO_TYPE_CLASS:
10815 case MONO_TYPE_VALUETYPE: {
10816 MonoMethod *method;
10819 MonoBoolean delete_old = FALSE;
10821 klass = t->data.klass;
10823 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10826 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10827 klass->blittable || klass->enumtype))
10828 return mono_object_unbox (o);
10830 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10832 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10833 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10837 pa [2] = &delete_old;
10839 mono_runtime_invoke (method, NULL, pa, NULL);
10847 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10852 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10860 t = &o->vtable->klass->byval_arg;
10862 case MONO_TYPE_STRING:
10863 switch (string_encoding) {
10864 case MONO_NATIVE_LPWSTR:
10865 case MONO_NATIVE_LPSTR:
10866 mono_marshal_free (ptr);
10869 g_warning ("marshaling conversion %d not implemented", string_encoding);
10870 g_assert_not_reached ();
10873 case MONO_TYPE_CLASS:
10874 case MONO_TYPE_VALUETYPE: {
10875 klass = t->data.klass;
10877 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10878 klass->blittable || klass->enumtype))
10881 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10882 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10888 mono_runtime_invoke (method, NULL, pa, NULL);
10891 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10892 mono_struct_delete_old (klass, ptr);
10895 mono_marshal_free (ptr);
10904 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10906 MonoMethodSignature *sig, *csig;
10907 MonoMethodBuilder *mb;
10912 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10913 mb->method->slot = -1;
10915 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10916 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10918 sig = mono_method_signature (method);
10919 csig = signature_dup (method->klass->image, sig);
10920 csig->generic_param_count = 0;
10922 #ifndef DISABLE_JIT
10923 mono_mb_emit_ldarg (mb, 0);
10924 for (i = 0; i < csig->param_count; i++)
10925 mono_mb_emit_ldarg (mb, i + 1);
10926 mono_mb_emit_managed_call (mb, method, NULL);
10927 mono_mb_emit_byte (mb, CEE_RET);
10929 /* We can corlib internal methods */
10930 mb->skip_visibility = TRUE;
10932 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10933 info->d.generic_array_helper.method = method;
10934 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10942 * The mono_win32_compat_* functions are implementations of inline
10943 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10944 * although not exported by kernel32.
10946 * We map the appropiate kernel32 entries to these functions using
10947 * dllmaps declared in the global etc/mono/config.
10951 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10953 if (!dest || !source)
10956 memcpy (dest, source, length);
10960 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10962 memset (dest, fill, length);
10966 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10968 if (!dest || !source)
10971 memmove (dest, source, length);
10975 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10977 memset (dest, 0, length);
10981 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10986 for (i = 0; i < len; ++i)
10990 g_assert (i < len);
10993 while (byte && !(byte & 1))
10995 g_assert (byte == 1);
10998 *bitmask = buf [i];
11002 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11004 MonoMethodBuilder *mb;
11005 MonoMethodSignature *sig, *csig;
11006 MonoExceptionClause *clause;
11011 int i, param_count, sig_size, pos_leave;
11015 klass = method->klass;
11016 image = method->klass->image;
11017 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11019 if ((res = mono_marshal_find_in_cache (cache, method)))
11022 sig = mono_method_signature (method);
11023 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11025 /* add "this" and exception param */
11026 param_count = sig->param_count + sig->hasthis + 1;
11028 /* dup & extend signature */
11029 csig = mono_metadata_signature_alloc (image, param_count);
11030 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11031 memcpy (csig, sig, sig_size);
11032 csig->param_count = param_count;
11035 csig->call_convention = MONO_CALL_DEFAULT;
11037 if (sig->hasthis) {
11039 csig->params [0] = &klass->byval_arg;
11040 /* move params up by one */
11041 for (i = 0; i < sig->param_count; i++)
11042 csig->params [i + 1] = sig->params [i];
11045 /* setup exception param as byref+[out] */
11046 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11047 &mono_defaults.exception_class->byval_arg);
11048 csig->params [param_count - 1]->byref = 1;
11049 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11051 /* convert struct return to object */
11052 if (MONO_TYPE_ISSTRUCT (sig->ret))
11053 csig->ret = &mono_defaults.object_class->byval_arg;
11055 #ifndef DISABLE_JIT
11056 /* local 0 (temp for exception object) */
11057 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11059 /* local 1 (temp for result) */
11060 if (!MONO_TYPE_IS_VOID (sig->ret))
11061 mono_mb_add_local (mb, sig->ret);
11063 /* clear exception arg */
11064 mono_mb_emit_ldarg (mb, param_count - 1);
11065 mono_mb_emit_byte (mb, CEE_LDNULL);
11066 mono_mb_emit_byte (mb, CEE_STIND_REF);
11069 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11070 clause->try_offset = mono_mb_get_label (mb);
11072 /* push method's args */
11073 for (i = 0; i < param_count - 1; i++) {
11077 mono_mb_emit_ldarg (mb, i);
11079 /* get the byval type of the param */
11080 klass = mono_class_from_mono_type (csig->params [i]);
11081 type = &klass->byval_arg;
11083 /* unbox struct args */
11084 if (MONO_TYPE_ISSTRUCT (type)) {
11085 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11087 /* byref args & and the "this" arg must remain a ptr.
11088 Otherwise make a copy of the value type */
11089 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11090 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11092 csig->params [i] = &mono_defaults.object_class->byval_arg;
11097 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11098 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11100 mono_mb_emit_op (mb, CEE_CALL, method);
11102 /* save result at local 1 */
11103 if (!MONO_TYPE_IS_VOID (sig->ret))
11104 mono_mb_emit_stloc (mb, 1);
11106 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11109 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11110 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11111 clause->data.catch_class = mono_defaults.object_class;
11113 clause->handler_offset = mono_mb_get_label (mb);
11115 /* store exception at local 0 */
11116 mono_mb_emit_stloc (mb, 0);
11117 mono_mb_emit_ldarg (mb, param_count - 1);
11118 mono_mb_emit_ldloc (mb, 0);
11119 mono_mb_emit_byte (mb, CEE_STIND_REF);
11120 mono_mb_emit_branch (mb, CEE_LEAVE);
11122 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11124 mono_mb_set_clauses (mb, 1, clause);
11126 mono_mb_patch_branch (mb, pos_leave);
11129 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11130 mono_mb_emit_ldloc (mb, 1);
11132 /* box the return value */
11133 if (MONO_TYPE_ISSTRUCT (sig->ret))
11134 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11137 mono_mb_emit_byte (mb, CEE_RET);
11140 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11147 * mono_marshal_free_dynamic_wrappers:
11149 * Free wrappers of the dynamic method METHOD.
11152 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11154 MonoImage *image = method->klass->image;
11156 g_assert (method_is_dynamic (method));
11158 /* This could be called during shutdown */
11159 if (marshal_mutex_initialized)
11160 mono_marshal_lock ();
11162 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11163 * they could be shared with other methods ?
11165 if (image->runtime_invoke_direct_cache)
11166 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11167 if (image->delegate_abstract_invoke_cache)
11168 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11169 // FIXME: Need to clear the caches in other images as well
11170 if (image->delegate_bound_static_invoke_cache)
11171 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11173 if (marshal_mutex_initialized)
11174 mono_marshal_unlock ();
11178 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11180 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11181 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11183 return mono_metadata_signature_equal (pair->sig, sig);
11187 * mono_marshal_free_inflated_wrappers:
11189 * Free wrappers of the inflated method METHOD.
11192 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11194 MonoMethodSignature *sig = method->signature;
11196 g_assert (method->is_inflated);
11198 /* Ignore calls occuring late during cleanup. */
11199 if (!marshal_mutex_initialized)
11202 mono_marshal_lock ();
11204 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11205 * they could be shared with other methods ?
11209 * indexed by MonoMethodSignature
11211 /* FIXME: This could remove unrelated wrappers as well */
11212 if (sig && method->klass->image->delegate_begin_invoke_cache)
11213 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11214 if (sig && method->klass->image->delegate_end_invoke_cache)
11215 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11216 if (sig && method->klass->image->delegate_invoke_cache)
11217 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11218 if (sig && method->klass->image->runtime_invoke_cache)
11219 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11220 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11221 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11224 * indexed by SignaturePointerPair
11226 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11227 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11228 signature_pointer_pair_matches_signature, (gpointer)sig);
11231 * indexed by MonoMethod pointers
11233 if (method->klass->image->runtime_invoke_direct_cache)
11234 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11235 if (method->klass->image->managed_wrapper_cache)
11236 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11237 if (method->klass->image->native_wrapper_cache)
11238 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11239 if (method->klass->image->remoting_invoke_cache)
11240 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11241 if (method->klass->image->synchronized_cache)
11242 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11243 if (method->klass->image->unbox_wrapper_cache)
11244 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11245 if (method->klass->image->cominterop_invoke_cache)
11246 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11247 if (method->klass->image->cominterop_wrapper_cache)
11248 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11249 if (method->klass->image->thunk_invoke_cache)
11250 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11251 if (method->klass->image->native_func_wrapper_aot_cache)
11252 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11254 mono_marshal_unlock ();