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_byte (mb, MONO_CUSTOM_PREFIX);
1991 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
1992 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1993 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1995 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1996 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1998 mono_mb_emit_icall (mb, checkpoint_func);
1999 /* Throw the exception returned by the checkpoint function, if any */
2000 mono_mb_emit_byte (mb, CEE_DUP);
2001 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2002 mono_mb_emit_byte (mb, CEE_THROW);
2003 mono_mb_patch_branch (mb, pos_noex);
2004 mono_mb_emit_byte (mb, CEE_POP);
2006 mono_mb_patch_branch (mb, pos_noabort);
2010 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2012 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2015 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2019 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2021 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2025 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2027 emit_thread_interrupt_checkpoint (mb);
2031 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2033 emit_thread_force_interrupt_checkpoint (mb);
2036 #endif /* DISABLE_JIT */
2038 static MonoAsyncResult *
2039 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2041 MonoMethodMessage *msg;
2042 MonoDelegate *async_callback;
2043 MonoMulticastDelegate *mcast_delegate;
2047 MonoMethod *method = NULL, *method2 = NULL;
2049 g_assert (delegate);
2050 mcast_delegate = (MonoMulticastDelegate *) delegate;
2051 if (mcast_delegate->prev != NULL)
2052 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2054 #ifndef DISABLE_REMOTING
2055 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2057 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2058 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2060 /* If the target is a proxy, make a direct call. Is proxy's work
2061 // to make the call asynchronous.
2063 MonoAsyncResult *ares;
2065 MonoArray *out_args;
2066 method = delegate->method;
2068 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2069 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2070 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2071 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2072 MONO_OBJECT_SETREF (msg, async_result, ares);
2073 msg->call_type = CallType_BeginInvoke;
2076 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2078 mono_raise_exception ((MonoException *) exc);
2084 klass = delegate->object.vtable->klass;
2086 method = mono_get_delegate_invoke (klass);
2087 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2090 g_assert (method != NULL);
2092 im = mono_get_delegate_invoke (method->klass);
2093 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2095 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2101 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2103 int i, params_var, tmp_var;
2105 /* allocate local (pointer) *params[] */
2106 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2107 /* allocate local (pointer) tmp */
2108 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2110 /* alloate space on stack to store an array of pointers to the arguments */
2111 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2112 mono_mb_emit_byte (mb, CEE_PREFIX1);
2113 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2114 mono_mb_emit_stloc (mb, params_var);
2117 mono_mb_emit_ldloc (mb, params_var);
2118 mono_mb_emit_stloc (mb, tmp_var);
2120 if (save_this && sig->hasthis) {
2121 mono_mb_emit_ldloc (mb, tmp_var);
2122 mono_mb_emit_ldarg_addr (mb, 0);
2123 mono_mb_emit_byte (mb, CEE_STIND_I);
2124 /* tmp = tmp + sizeof (gpointer) */
2125 if (sig->param_count)
2126 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2130 for (i = 0; i < sig->param_count; i++) {
2131 mono_mb_emit_ldloc (mb, tmp_var);
2132 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2133 mono_mb_emit_byte (mb, CEE_STIND_I);
2134 /* tmp = tmp + sizeof (gpointer) */
2135 if (i < (sig->param_count - 1))
2136 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2142 #endif /* DISABLE_JIT */
2145 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2149 GString *res = g_string_new ("");
2152 g_string_append (res, prefix);
2153 g_string_append_c (res, '_');
2156 mono_type_get_desc (res, sig->ret, FALSE);
2159 g_string_append (res, "__this__");
2161 for (i = 0; i < sig->param_count; ++i) {
2162 g_string_append_c (res, '_');
2163 mono_type_get_desc (res, sig->params [i], FALSE);
2166 g_string_free (res, FALSE);
2171 * mono_marshal_get_string_encoding:
2173 * Return the string encoding which should be used for a given parameter.
2175 static MonoMarshalNative
2176 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2178 /* First try the parameter marshal info */
2180 if (spec->native == MONO_NATIVE_LPARRAY) {
2181 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2182 return spec->data.array_data.elem_type;
2185 return spec->native;
2189 return MONO_NATIVE_LPSTR;
2191 /* Then try the method level marshal info */
2192 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2193 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2194 return MONO_NATIVE_LPSTR;
2195 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2196 return MONO_NATIVE_LPWSTR;
2197 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2199 return MONO_NATIVE_LPWSTR;
2201 return MONO_NATIVE_LPSTR;
2204 return MONO_NATIVE_LPSTR;
2208 static MonoMarshalConv
2209 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2211 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2214 case MONO_NATIVE_LPWSTR:
2215 return MONO_MARSHAL_CONV_STR_LPWSTR;
2216 case MONO_NATIVE_LPSTR:
2217 case MONO_NATIVE_VBBYREFSTR:
2218 return MONO_MARSHAL_CONV_STR_LPSTR;
2219 case MONO_NATIVE_LPTSTR:
2220 return MONO_MARSHAL_CONV_STR_LPTSTR;
2221 case MONO_NATIVE_BSTR:
2222 return MONO_MARSHAL_CONV_STR_BSTR;
2228 static MonoMarshalConv
2229 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2231 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2234 case MONO_NATIVE_LPWSTR:
2235 return MONO_MARSHAL_CONV_SB_LPWSTR;
2237 case MONO_NATIVE_LPSTR:
2238 return MONO_MARSHAL_CONV_SB_LPSTR;
2240 case MONO_NATIVE_LPTSTR:
2241 return MONO_MARSHAL_CONV_SB_LPTSTR;
2248 static MonoMarshalConv
2249 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2251 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2256 case MONO_NATIVE_LPWSTR:
2258 return MONO_MARSHAL_CONV_LPWSTR_STR;
2259 case MONO_NATIVE_LPSTR:
2260 case MONO_NATIVE_VBBYREFSTR:
2261 return MONO_MARSHAL_CONV_LPSTR_STR;
2262 case MONO_NATIVE_LPTSTR:
2263 return MONO_MARSHAL_CONV_LPTSTR_STR;
2264 case MONO_NATIVE_BSTR:
2265 return MONO_MARSHAL_CONV_BSTR_STR;
2271 static MonoMarshalConv
2272 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2274 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2279 case MONO_NATIVE_LPWSTR:
2281 * mono_string_builder_to_utf16 does not allocate a
2282 * new buffer, so no need to free it.
2285 return MONO_MARSHAL_CONV_LPWSTR_SB;
2286 case MONO_NATIVE_LPSTR:
2287 return MONO_MARSHAL_CONV_LPSTR_SB;
2289 case MONO_NATIVE_LPTSTR:
2290 return MONO_MARSHAL_CONV_LPTSTR_SB;
2298 * Return whenever a field of a native structure or an array member needs to
2302 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2304 MonoMarshalNative encoding;
2307 case MONO_TYPE_VALUETYPE:
2308 /* FIXME: Optimize this */
2310 case MONO_TYPE_OBJECT:
2311 case MONO_TYPE_CLASS:
2312 if (t->data.klass == mono_defaults.stringbuilder_class) {
2314 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2318 case MONO_TYPE_STRING:
2319 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2320 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2327 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2330 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2333 mono_marshal_lock ();
2336 g_hash_table_new (hash_func, equal_func);
2337 mono_memory_barrier ();
2340 mono_marshal_unlock ();
2346 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2348 return get_cache (var, hash_func, equal_func);
2352 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2356 mono_marshal_lock ();
2357 res = g_hash_table_lookup (cache, key);
2358 mono_marshal_unlock ();
2365 * Create a MonoMethod from MB, set INFO as wrapper info.
2368 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2369 int max_stack, WrapperInfo *info)
2373 res = mono_mb_create_method (mb, sig, max_stack);
2375 mono_marshal_set_wrapper_info (res, info);
2379 /* Create the method from the builder and place it in the cache */
2381 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2382 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2383 int max_stack, WrapperInfo *info, gboolean *out_found)
2390 mono_marshal_lock ();
2391 res = g_hash_table_lookup (cache, key);
2392 mono_marshal_unlock ();
2395 newm = mono_mb_create_method (mb, sig, max_stack);
2396 mono_marshal_lock ();
2397 res = g_hash_table_lookup (cache, key);
2400 g_hash_table_insert (cache, key, res);
2402 mono_marshal_set_wrapper_info (res, info);
2404 mono_marshal_set_wrapper_info (res, key);
2405 mono_marshal_unlock ();
2409 mono_marshal_unlock ();
2410 mono_free_method (newm);
2418 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2419 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2422 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2426 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2429 int wrapper_type = wrapper->wrapper_type;
2432 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2435 switch (wrapper_type) {
2436 case MONO_WRAPPER_REMOTING_INVOKE:
2437 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2438 case MONO_WRAPPER_XDOMAIN_INVOKE:
2439 case MONO_WRAPPER_SYNCHRONIZED:
2440 case MONO_WRAPPER_UNBOX:
2441 res = mono_marshal_get_wrapper_info (wrapper);
2444 if (wrapper->is_inflated) {
2448 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2449 * contains an uninflated method.
2451 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2452 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2456 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2457 info = mono_marshal_get_wrapper_info (wrapper);
2458 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2459 return info->d.managed_to_native.method;
2462 case MONO_WRAPPER_RUNTIME_INVOKE:
2463 info = mono_marshal_get_wrapper_info (wrapper);
2464 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2465 return info->d.runtime_invoke.method;
2474 * mono_marshal_get_wrapper_info:
2476 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2477 * returned depends on the wrapper type. It is usually a method, a class, or a
2478 * WrapperInfo structure.
2481 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2483 g_assert (wrapper->wrapper_type);
2485 return mono_method_get_wrapper_data (wrapper, 1);
2489 * mono_marshal_set_wrapper_info:
2491 * Store an arbitrary pointer inside the wrapper which is retrievable by
2492 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2493 * wrapper (method->wrapper_type).
2496 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2500 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2503 datav = ((MonoMethodWrapper *)method)->method_data;
2508 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2512 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2513 info->subtype = subtype;
2518 * get_wrapper_target_class:
2520 * Return the class where a wrapper method should be placed.
2523 get_wrapper_target_class (MonoImage *image)
2530 * - can't put all wrappers into an mscorlib class, because they reference
2531 * metadata (signature) so they should be put into the same image as the
2532 * method they wrap, so they are unloaded together.
2533 * - putting them into a class with a type initalizer could cause the
2534 * initializer to be executed which can be a problem if the wrappers are
2536 * - putting them into an inflated class can cause problems if the the
2537 * class is deleted because it references an image which is unloaded.
2538 * To avoid these problems, we put the wrappers into the <Module> class of
2541 if (image_is_dynamic (image)) {
2542 klass = ((MonoDynamicImage*)image)->wrappers_type;
2544 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2545 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2553 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2554 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2558 * check_generic_wrapper_cache:
2560 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2561 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2562 * generic method definition.
2565 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2568 MonoMethod *inst, *def;
2569 MonoGenericContext *ctx;
2571 g_assert (orig_method->is_inflated);
2572 ctx = mono_method_get_context (orig_method);
2575 * Look for the instance
2577 res = mono_marshal_find_in_cache (cache, key);
2582 * Look for the definition
2584 def = mono_marshal_find_in_cache (cache, def_key);
2587 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2588 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2590 mono_memory_barrier ();
2591 mono_marshal_lock ();
2592 res = g_hash_table_lookup (cache, key);
2594 g_hash_table_insert (cache, key, inst);
2597 mono_marshal_unlock ();
2604 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2607 MonoMethod *inst, *res;
2610 * We use the same cache for the generic definition and the instances.
2612 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2613 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2614 mono_memory_barrier ();
2615 mono_marshal_lock ();
2616 res = g_hash_table_lookup (cache, key);
2618 g_hash_table_insert (cache, key, inst);
2621 mono_marshal_unlock ();
2626 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2630 MonoMethod *inst, *def;
2633 * Look for the instance
2635 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2640 * Look for the definition
2642 def = mono_marshal_find_in_cache (cache, def_method->klass);
2644 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2645 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2648 mono_memory_barrier ();
2649 mono_marshal_lock ();
2650 res = g_hash_table_lookup (cache, orig_method->klass);
2652 g_hash_table_insert (cache, orig_method->klass, inst);
2655 mono_marshal_unlock ();
2662 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2665 MonoMethod *inst, *res;
2668 * We use the same cache for the generic definition and the instances.
2670 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2671 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2673 mono_memory_barrier ();
2674 mono_marshal_lock ();
2675 res = g_hash_table_lookup (cache, orig_method->klass);
2677 g_hash_table_insert (cache, orig_method->klass, inst);
2680 mono_marshal_unlock ();
2685 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2687 MonoMethodSignature *sig;
2688 MonoMethodBuilder *mb;
2693 MonoGenericContext *ctx = NULL;
2694 MonoMethod *orig_method = NULL;
2696 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2697 !strcmp (method->name, "BeginInvoke"));
2700 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2702 if (method->is_inflated) {
2703 orig_method = method;
2704 ctx = &((MonoMethodInflated*)method)->context;
2705 method = ((MonoMethodInflated*)method)->declaring;
2708 sig = mono_signature_no_pinvoke (method);
2714 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2715 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2719 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2720 (GHashFunc)mono_signature_hash,
2721 (GCompareFunc)mono_metadata_signature_equal);
2722 if ((res = mono_marshal_find_in_cache (cache, sig)))
2726 g_assert (sig->hasthis);
2728 name = mono_signature_to_name (sig, "begin_invoke");
2730 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2732 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2736 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2738 mono_mb_emit_ldarg (mb, 0);
2739 mono_mb_emit_ldloc (mb, params_var);
2740 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2741 mono_mb_emit_byte (mb, CEE_RET);
2746 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2747 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2749 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2757 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2759 MonoDomain *domain = mono_domain_get ();
2760 MonoAsyncResult *ares;
2761 MonoMethod *method = NULL;
2762 MonoMethodSignature *sig;
2763 MonoMethodMessage *msg;
2764 MonoObject *res, *exc;
2765 MonoArray *out_args;
2768 g_assert (delegate);
2770 if (!delegate->method_info) {
2771 g_assert (delegate->method);
2772 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2775 if (!delegate->method_info || !delegate->method_info->method)
2776 g_assert_not_reached ();
2778 klass = delegate->object.vtable->klass;
2780 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2781 g_assert (method != NULL);
2783 sig = mono_signature_no_pinvoke (method);
2785 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2787 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2789 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."));
2793 if (ares->async_delegate != (MonoObject*)delegate) {
2794 mono_raise_exception (mono_get_exception_invalid_operation (
2795 "The IAsyncResult object provided does not match this delegate."));
2799 #ifndef DISABLE_REMOTING
2800 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2801 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2802 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2803 mono_message_init (domain, msg, delegate->method_info, NULL);
2804 msg->call_type = CallType_EndInvoke;
2805 MONO_OBJECT_SETREF (msg, async_result, ares);
2806 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2810 res = mono_thread_pool_finish (ares, &out_args, &exc);
2814 if (((MonoException*)exc)->stack_trace) {
2815 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2817 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2819 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2822 mono_raise_exception ((MonoException*)exc);
2825 mono_method_return_message_restore (method, params, out_args);
2832 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2834 MonoType *t = mono_type_get_underlying_type (return_type);
2836 if (return_type->byref)
2837 return_type = &mono_defaults.int_class->byval_arg;
2840 case MONO_TYPE_VOID:
2841 g_assert_not_reached ();
2844 case MONO_TYPE_STRING:
2845 case MONO_TYPE_CLASS:
2846 case MONO_TYPE_OBJECT:
2847 case MONO_TYPE_ARRAY:
2848 case MONO_TYPE_SZARRAY:
2852 case MONO_TYPE_BOOLEAN:
2855 case MONO_TYPE_CHAR:
2865 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2866 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2868 case MONO_TYPE_GENERICINST:
2869 if (!mono_type_generic_inst_is_valuetype (t))
2872 case MONO_TYPE_VALUETYPE: {
2873 MonoClass *klass = mono_class_from_mono_type (return_type);
2874 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2875 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2879 case MONO_TYPE_MVAR: {
2880 MonoClass *klass = mono_class_from_mono_type (return_type);
2881 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2885 g_warning ("type 0x%x not handled", return_type->type);
2886 g_assert_not_reached ();
2889 mono_mb_emit_byte (mb, CEE_RET);
2892 #endif /* DISABLE_JIT */
2895 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2897 MonoMethodSignature *sig;
2898 MonoMethodBuilder *mb;
2903 MonoGenericContext *ctx = NULL;
2904 MonoMethod *orig_method = NULL;
2906 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2907 !strcmp (method->name, "EndInvoke"));
2910 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2912 if (method->is_inflated) {
2913 orig_method = method;
2914 ctx = &((MonoMethodInflated*)method)->context;
2915 method = ((MonoMethodInflated*)method)->declaring;
2918 sig = mono_signature_no_pinvoke (method);
2924 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2925 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2929 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2930 (GHashFunc)mono_signature_hash,
2931 (GCompareFunc)mono_metadata_signature_equal);
2932 if ((res = mono_marshal_find_in_cache (cache, sig)))
2936 g_assert (sig->hasthis);
2938 name = mono_signature_to_name (sig, "end_invoke");
2940 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2942 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2946 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2948 mono_mb_emit_ldarg (mb, 0);
2949 mono_mb_emit_ldloc (mb, params_var);
2950 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2952 if (sig->ret->type == MONO_TYPE_VOID) {
2953 mono_mb_emit_byte (mb, CEE_POP);
2954 mono_mb_emit_byte (mb, CEE_RET);
2956 mono_mb_emit_restore_result (mb, sig->ret);
2961 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2962 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2964 res = mono_mb_create_and_cache (cache, sig,
2965 mb, sig, sig->param_count + 16);
2974 MonoMethodSignature *sig;
2976 } SignaturePointerPair;
2979 signature_pointer_pair_hash (gconstpointer data)
2981 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2983 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2987 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2989 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2990 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
2994 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
2996 SignaturePointerPair *pair = (SignaturePointerPair*)key;
2998 return pair->pointer == user_data;
3002 free_signature_pointer_pair (SignaturePointerPair *pair)
3008 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3010 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3012 MonoMethodBuilder *mb;
3015 gpointer cache_key = NULL;
3016 SignaturePointerPair key;
3017 SignaturePointerPair *new_key;
3018 int local_prev, local_target;
3021 MonoClass *target_class = NULL;
3022 gboolean closed_over_null = FALSE;
3023 MonoGenericContext *ctx = NULL;
3024 MonoGenericContainer *container = NULL;
3025 MonoMethod *orig_method = NULL;
3027 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3030 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3031 !strcmp (method->name, "Invoke"));
3033 invoke_sig = sig = mono_signature_no_pinvoke (method);
3036 * If the delegate target is null, and the target method is not static, a virtual
3037 * call is made to that method with the first delegate argument as this. This is
3038 * a non-documented .NET feature.
3041 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3042 if (target_method->is_inflated) {
3043 MonoType *target_type;
3045 g_assert (method->signature->hasthis);
3046 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3047 mono_method_get_context (method));
3048 target_class = mono_class_from_mono_type (target_type);
3050 target_class = target_method->klass;
3053 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3056 if (static_method_with_first_arg_bound) {
3057 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3058 g_assert (!callvirt);
3059 invoke_sig = mono_method_signature (target_method);
3063 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3065 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3066 orig_method = method;
3067 ctx = &((MonoMethodInflated*)method)->context;
3068 method = ((MonoMethodInflated*)method)->declaring;
3070 container = mono_method_get_generic_container (method);
3072 container = method->klass->generic_container;
3073 g_assert (container);
3075 invoke_sig = sig = mono_signature_no_pinvoke (method);
3082 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3083 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3086 cache_key = method->klass;
3087 } else if (static_method_with_first_arg_bound) {
3088 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3089 (GHashFunc)mono_signature_hash,
3090 (GCompareFunc)mono_metadata_signature_equal);
3092 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3094 res = mono_marshal_find_in_cache (cache, invoke_sig);
3097 cache_key = invoke_sig;
3098 } else if (callvirt) {
3099 GHashTable **cache_ptr;
3101 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3103 /* We need to cache the signature+method pair */
3104 mono_marshal_lock ();
3106 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3108 key.sig = invoke_sig;
3109 key.pointer = target_method;
3110 res = g_hash_table_lookup (cache, &key);
3111 mono_marshal_unlock ();
3115 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3116 (GHashFunc)mono_signature_hash,
3117 (GCompareFunc)mono_metadata_signature_equal);
3118 res = mono_marshal_find_in_cache (cache, sig);
3124 static_sig = signature_dup (method->klass->image, sig);
3125 static_sig->hasthis = 0;
3126 if (!static_method_with_first_arg_bound)
3127 invoke_sig = static_sig;
3129 if (static_method_with_first_arg_bound)
3130 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3131 else if (closed_over_null)
3132 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3134 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3136 name = mono_signature_to_name (invoke_sig, "invoke");
3138 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3140 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3144 /* allocate local 0 (object) */
3145 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3146 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3148 g_assert (sig->hasthis);
3152 * prev.Invoke( args .. );
3153 * return this.<target>( args .. );
3156 /* this wrapper can be used in unmanaged-managed transitions */
3157 emit_thread_interrupt_checkpoint (mb);
3159 /* get this->prev */
3160 mono_mb_emit_ldarg (mb, 0);
3161 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3162 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3163 mono_mb_emit_stloc (mb, local_prev);
3164 mono_mb_emit_ldloc (mb, local_prev);
3166 /* if prev != null */
3167 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3171 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3172 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3174 mono_mb_emit_ldloc (mb, local_prev);
3175 for (i = 0; i < sig->param_count; i++)
3176 mono_mb_emit_ldarg (mb, i + 1);
3179 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3180 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3182 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3184 if (sig->ret->type != MONO_TYPE_VOID)
3185 mono_mb_emit_byte (mb, CEE_POP);
3187 /* continued or prev == null */
3188 mono_mb_patch_branch (mb, pos0);
3190 /* get this->target */
3191 mono_mb_emit_ldarg (mb, 0);
3192 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3193 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3194 mono_mb_emit_stloc (mb, local_target);
3196 /*static methods with bound first arg can have null target and still be bound*/
3197 if (!static_method_with_first_arg_bound) {
3198 /* if target != null */
3199 mono_mb_emit_ldloc (mb, local_target);
3200 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3202 /* then call this->method_ptr nonstatic */
3205 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3207 mono_mb_emit_ldloc (mb, local_target);
3208 for (i = 0; i < sig->param_count; ++i)
3209 mono_mb_emit_ldarg (mb, i + 1);
3210 mono_mb_emit_ldarg (mb, 0);
3211 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3212 mono_mb_emit_byte (mb, CEE_LDIND_I );
3213 mono_mb_emit_op (mb, CEE_CALLI, sig);
3215 mono_mb_emit_byte (mb, CEE_RET);
3218 /* else [target == null] call this->method_ptr static */
3219 mono_mb_patch_branch (mb, pos0);
3223 if (!closed_over_null) {
3224 mono_mb_emit_ldarg (mb, 1);
3225 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3226 for (i = 1; i < sig->param_count; ++i)
3227 mono_mb_emit_ldarg (mb, i + 1);
3228 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3230 mono_mb_emit_byte (mb, CEE_LDNULL);
3231 for (i = 0; i < sig->param_count; ++i)
3232 mono_mb_emit_ldarg (mb, i + 1);
3233 mono_mb_emit_op (mb, CEE_CALL, target_method);
3236 if (static_method_with_first_arg_bound) {
3237 mono_mb_emit_ldloc (mb, local_target);
3238 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3239 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3241 for (i = 0; i < sig->param_count; ++i)
3242 mono_mb_emit_ldarg (mb, i + 1);
3243 mono_mb_emit_ldarg (mb, 0);
3244 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3245 mono_mb_emit_byte (mb, CEE_LDIND_I );
3246 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3249 mono_mb_emit_byte (mb, CEE_RET);
3251 mb->skip_visibility = 1;
3252 #endif /* DISABLE_JIT */
3257 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3258 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3259 } else if (callvirt) {
3260 new_key = g_new0 (SignaturePointerPair, 1);
3263 info = mono_wrapper_info_create (mb, subtype);
3265 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3269 info = mono_wrapper_info_create (mb, subtype);
3271 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3279 * the returned method invokes all methods in a multicast delegate.
3282 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3284 gboolean callvirt = FALSE;
3285 gboolean static_method_with_first_arg_bound = FALSE;
3286 MonoMethod *target_method = NULL;
3287 MonoMethodSignature *sig;
3289 sig = mono_signature_no_pinvoke (method);
3291 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3293 target_method = del->method;
3296 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3297 static_method_with_first_arg_bound = TRUE;
3298 target_method = del->method;
3301 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3305 * signature_dup_add_this:
3307 * Make a copy of @sig, adding an explicit this argument.
3309 static MonoMethodSignature*
3310 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3312 MonoMethodSignature *res;
3315 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3316 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3317 res->param_count = sig->param_count + 1;
3318 res->hasthis = FALSE;
3319 for (i = sig->param_count - 1; i >= 0; i --)
3320 res->params [i + 1] = sig->params [i];
3321 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3327 MonoMethodSignature *ctor_sig;
3328 MonoMethodSignature *sig;
3331 /* protected by the marshal lock, contains CtorSigPair pointers */
3332 static GSList *strsig_list = NULL;
3334 static MonoMethodSignature *
3335 lookup_string_ctor_signature (MonoMethodSignature *sig)
3337 MonoMethodSignature *callsig;
3341 mono_marshal_lock ();
3343 for (item = strsig_list; item; item = item->next) {
3345 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3346 * because it is lock-free.
3348 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3353 mono_marshal_unlock ();
3357 static MonoMethodSignature *
3358 add_string_ctor_signature (MonoMethod *method)
3360 MonoMethodSignature *callsig;
3363 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3364 callsig->ret = &mono_defaults.string_class->byval_arg;
3365 cs = g_new (CtorSigPair, 1);
3367 cs->ctor_sig = mono_method_signature (method);
3369 mono_marshal_lock ();
3370 strsig_list = g_slist_prepend (strsig_list, cs);
3371 mono_marshal_unlock ();
3376 * mono_marshal_get_string_ctor_signature:
3378 * Return the modified signature used by string ctors (they return the newly created
3381 MonoMethodSignature*
3382 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3384 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3386 sig = add_string_ctor_signature (method);
3392 get_runtime_invoke_type (MonoType *t, gboolean ret)
3395 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3397 /* Can't share this with 'I' as that needs another indirection */
3398 return &mono_defaults.int_class->this_arg;
3401 if (MONO_TYPE_IS_REFERENCE (t))
3402 return &mono_defaults.object_class->byval_arg;
3405 /* The result needs to be boxed */
3410 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3413 return &mono_defaults.sbyte_class->byval_arg;
3415 return &mono_defaults.int16_class->byval_arg;
3417 return &mono_defaults.int32_class->byval_arg;
3420 return &mono_defaults.int64_class->byval_arg;
3421 case MONO_TYPE_BOOLEAN:
3422 return &mono_defaults.byte_class->byval_arg;
3423 case MONO_TYPE_CHAR:
3424 return &mono_defaults.uint16_class->byval_arg;
3427 return &mono_defaults.int_class->byval_arg;
3428 case MONO_TYPE_VALUETYPE:
3429 if (t->data.klass->enumtype) {
3430 t = mono_class_enum_basetype (t->data.klass);
3440 * mono_marshal_get_runtime_invoke_sig:
3442 * Return a common signature used for sharing runtime invoke wrappers.
3444 static MonoMethodSignature*
3445 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3447 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3450 res->generic_param_count = 0;
3451 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3452 for (i = 0; i < res->param_count; ++i)
3453 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3459 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3461 /* Can't share wrappers which return a vtype since it needs to be boxed */
3462 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))
3465 return mono_metadata_signature_equal (sig1, sig2);
3473 * Emit the call to the wrapper method from a runtime invoke wrapper.
3476 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3477 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3479 gboolean virtual, gboolean need_direct_wrapper)
3481 static MonoString *string_dummy = NULL;
3483 int *tmp_nullable_locals;
3484 gboolean void_ret = FALSE;
3486 /* to make it work with our special string constructors */
3487 if (!string_dummy) {
3488 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3489 string_dummy = mono_string_new_wrapper ("dummy");
3493 g_assert (sig->hasthis);
3494 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3498 if (method->string_ctor) {
3499 if (mono_gc_is_moving ()) {
3500 mono_mb_emit_ptr (mb, &string_dummy);
3501 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3503 mono_mb_emit_ptr (mb, string_dummy);
3506 mono_mb_emit_ldarg (mb, 0);
3510 tmp_nullable_locals = g_new0 (int, sig->param_count);
3512 for (i = 0; i < sig->param_count; i++) {
3513 MonoType *t = sig->params [i];
3516 mono_mb_emit_ldarg (mb, 1);
3518 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3519 mono_mb_emit_byte (mb, CEE_ADD);
3523 mono_mb_emit_byte (mb, CEE_LDIND_I);
3524 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3525 * So to make this work we unbox it to a local variablee and push a reference to that.
3527 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3528 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3530 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3531 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3532 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3537 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3538 type = sig->params [i]->type;
3542 case MONO_TYPE_BOOLEAN:
3546 case MONO_TYPE_CHAR:
3555 mono_mb_emit_byte (mb, CEE_LDIND_I);
3556 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3558 case MONO_TYPE_STRING:
3559 case MONO_TYPE_CLASS:
3560 case MONO_TYPE_ARRAY:
3562 case MONO_TYPE_SZARRAY:
3563 case MONO_TYPE_OBJECT:
3564 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3566 case MONO_TYPE_GENERICINST:
3567 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3568 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3573 case MONO_TYPE_VALUETYPE:
3574 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3575 type = mono_class_enum_basetype (t->data.klass)->type;
3578 mono_mb_emit_byte (mb, CEE_LDIND_I);
3579 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3580 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3581 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3582 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3584 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3588 g_assert_not_reached ();
3593 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3594 } else if (need_direct_wrapper) {
3595 mono_mb_emit_op (mb, CEE_CALL, method);
3597 mono_mb_emit_ldarg (mb, 3);
3598 mono_mb_emit_calli (mb, callsig);
3601 if (sig->ret->byref) {
3603 g_assert_not_reached ();
3606 switch (sig->ret->type) {
3607 case MONO_TYPE_VOID:
3608 if (!method->string_ctor)
3611 case MONO_TYPE_BOOLEAN:
3612 case MONO_TYPE_CHAR:
3625 case MONO_TYPE_VALUETYPE:
3626 case MONO_TYPE_TYPEDBYREF:
3627 case MONO_TYPE_GENERICINST:
3628 /* box value types */
3629 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3631 case MONO_TYPE_STRING:
3632 case MONO_TYPE_CLASS:
3633 case MONO_TYPE_ARRAY:
3634 case MONO_TYPE_SZARRAY:
3635 case MONO_TYPE_OBJECT:
3639 /* The result is an IntPtr */
3640 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3643 g_assert_not_reached ();
3647 mono_mb_emit_stloc (mb, loc_res);
3649 /* Convert back nullable-byref arguments */
3650 for (i = 0; i < sig->param_count; i++) {
3651 MonoType *t = sig->params [i];
3654 * Box the result and put it back into the array, the caller will have
3655 * to obtain it from there.
3657 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3658 mono_mb_emit_ldarg (mb, 1);
3659 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3660 mono_mb_emit_byte (mb, CEE_ADD);
3662 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3663 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3665 mono_mb_emit_byte (mb, CEE_STIND_REF);
3669 g_free (tmp_nullable_locals);
3673 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3674 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3675 gboolean virtual, gboolean need_direct_wrapper)
3678 MonoExceptionClause *clause;
3679 int loc_res, loc_exc;
3681 /* The wrapper looks like this:
3687 * } catch (Exception e) {
3695 /* allocate local 0 (object) tmp */
3696 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3697 /* allocate local 1 (object) exc */
3698 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3700 /* *exc is assumed to be initialized to NULL by the caller */
3702 mono_mb_emit_byte (mb, CEE_LDARG_2);
3703 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3708 labels [1] = mono_mb_get_label (mb);
3709 emit_thread_force_interrupt_checkpoint (mb);
3710 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3712 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3714 /* Add a try clause around the call */
3715 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3716 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3717 clause->data.catch_class = mono_defaults.exception_class;
3718 clause->try_offset = labels [1];
3719 clause->try_len = mono_mb_get_label (mb) - labels [1];
3721 clause->handler_offset = mono_mb_get_label (mb);
3724 mono_mb_emit_stloc (mb, loc_exc);
3725 mono_mb_emit_byte (mb, CEE_LDARG_2);
3726 mono_mb_emit_ldloc (mb, loc_exc);
3727 mono_mb_emit_byte (mb, CEE_STIND_REF);
3729 mono_mb_emit_branch (mb, CEE_LEAVE);
3731 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3733 mono_mb_set_clauses (mb, 1, clause);
3735 mono_mb_patch_branch (mb, labels [2]);
3736 mono_mb_emit_ldloc (mb, loc_res);
3737 mono_mb_emit_byte (mb, CEE_RET);
3742 mono_mb_patch_branch (mb, labels [0]);
3743 emit_thread_force_interrupt_checkpoint (mb);
3744 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3746 mono_mb_emit_ldloc (mb, 0);
3747 mono_mb_emit_byte (mb, CEE_RET);
3752 * generates IL code for the runtime invoke function
3753 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3755 * we also catch exceptions if exc != null
3756 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3757 * it means that the compiled code for METHOD does not have to be looked up
3758 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3759 * its METHOD argument.
3762 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3764 MonoMethodSignature *sig, *csig, *callsig;
3765 MonoMethodBuilder *mb;
3766 GHashTable *cache = NULL;
3767 MonoClass *target_klass;
3768 MonoMethod *res = NULL;
3769 static MonoMethodSignature *cctor_signature = NULL;
3770 static MonoMethodSignature *finalize_signature = NULL;
3772 const char *param_names [16];
3773 gboolean need_direct_wrapper = FALSE;
3778 if (!cctor_signature) {
3779 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3780 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3782 if (!finalize_signature) {
3783 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3784 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3785 finalize_signature->hasthis = 1;
3789 need_direct_wrapper = TRUE;
3792 * Use a separate cache indexed by methods to speed things up and to avoid the
3793 * boundless mempool growth caused by the signature_dup stuff below.
3796 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3798 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3799 res = mono_marshal_find_in_cache (cache, method);
3803 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3804 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3806 * Array Get/Set/Address methods. The JIT implements them using inline code
3807 * so we need to create an invoke wrapper which calls the method directly.
3809 need_direct_wrapper = TRUE;
3812 if (method->string_ctor) {
3813 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3815 callsig = add_string_ctor_signature (method);
3816 /* Can't share this as we push a string as this */
3817 need_direct_wrapper = TRUE;
3819 if (method_is_dynamic (method))
3820 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3822 callsig = mono_method_signature (method);
3825 target_klass = get_wrapper_target_class (method->klass->image);
3827 /* Try to share wrappers for non-corlib methods with simple signatures */
3828 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3829 callsig = cctor_signature;
3830 target_klass = mono_defaults.object_class;
3831 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3832 callsig = finalize_signature;
3833 target_klass = mono_defaults.object_class;
3836 if (need_direct_wrapper) {
3837 /* Already searched at the start */
3839 MonoMethodSignature *tmp_sig;
3841 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3843 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3844 /* These have a different csig */
3845 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3846 (GHashFunc)mono_signature_hash,
3847 (GCompareFunc)runtime_invoke_signature_equal);
3849 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3850 (GHashFunc)mono_signature_hash,
3851 (GCompareFunc)runtime_invoke_signature_equal);
3853 /* from mono_marshal_find_in_cache */
3854 mono_marshal_lock ();
3855 res = g_hash_table_lookup (cache, callsig);
3856 mono_marshal_unlock ();
3863 /* Make a copy of the signature from the image mempool */
3865 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3869 sig = mono_method_signature (method);
3871 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3873 csig->ret = &mono_defaults.object_class->byval_arg;
3874 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3875 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3877 csig->params [0] = &mono_defaults.object_class->byval_arg;
3878 csig->params [1] = &mono_defaults.int_class->byval_arg;
3879 csig->params [2] = &mono_defaults.int_class->byval_arg;
3880 csig->params [3] = &mono_defaults.int_class->byval_arg;
3883 /* This is called from runtime code so it has to be cdecl */
3884 csig->call_convention = MONO_CALL_C;
3887 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3888 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3892 param_names [0] = "this";
3893 param_names [1] = "params";
3894 param_names [2] = "exc";
3895 param_names [3] = "method";
3896 mono_mb_set_param_names (mb, param_names);
3898 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3901 if (need_direct_wrapper) {
3903 mb->skip_visibility = 1;
3905 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3906 info->d.runtime_invoke.method = method;
3907 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3909 /* taken from mono_mb_create_and_cache */
3910 mono_marshal_lock ();
3911 res = g_hash_table_lookup (cache, callsig);
3912 mono_marshal_unlock ();
3914 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3915 info->d.runtime_invoke.sig = callsig;
3917 /* Somebody may have created it before us */
3920 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3922 mono_marshal_lock ();
3923 res = g_hash_table_lookup (cache, callsig);
3926 g_hash_table_insert (cache, callsig, res);
3927 /* Can't insert it into wrapper_hash since the key is a signature */
3928 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3930 mono_free_method (newm);
3932 mono_marshal_unlock ();
3935 /* end mono_mb_create_and_cache */
3944 * mono_marshal_get_runtime_invoke_dynamic:
3946 * Return a method which can be used to invoke managed methods from native code
3948 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3949 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3950 * ARGS should point to an architecture specific structure containing
3951 * the arguments and space for the return value.
3952 * The other arguments are the same as for runtime_invoke (), except that
3953 * ARGS should contain the this argument too.
3954 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3955 * is only one copy of it, which is useful in full-aot.
3956 * The wrapper info for the wrapper is a WrapperInfo structure.
3959 mono_marshal_get_runtime_invoke_dynamic (void)
3961 static MonoMethod *method;
3962 MonoMethodSignature *csig;
3963 MonoExceptionClause *clause;
3964 MonoMethodBuilder *mb;
3972 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3974 csig->ret = &mono_defaults.void_class->byval_arg;
3975 csig->params [0] = &mono_defaults.int_class->byval_arg;
3976 csig->params [1] = &mono_defaults.int_class->byval_arg;
3977 csig->params [2] = &mono_defaults.int_class->byval_arg;
3978 csig->params [3] = &mono_defaults.int_class->byval_arg;
3980 name = g_strdup ("runtime_invoke_dynamic");
3981 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
3985 /* allocate local 0 (object) tmp */
3986 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3987 /* allocate local 1 (object) exc */
3988 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3990 /* cond set *exc to null */
3991 mono_mb_emit_byte (mb, CEE_LDARG_1);
3992 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3993 mono_mb_emit_byte (mb, 3);
3994 mono_mb_emit_byte (mb, CEE_LDARG_1);
3995 mono_mb_emit_byte (mb, CEE_LDNULL);
3996 mono_mb_emit_byte (mb, CEE_STIND_REF);
3998 emit_thread_force_interrupt_checkpoint (mb);
4000 mono_mb_emit_byte (mb, CEE_LDARG_0);
4001 mono_mb_emit_byte (mb, CEE_LDARG_2);
4002 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4003 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4005 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4007 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4008 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4009 clause->try_len = mono_mb_get_label (mb);
4012 clause->data.filter_offset = mono_mb_get_label (mb);
4014 mono_mb_emit_byte (mb, CEE_POP);
4015 mono_mb_emit_byte (mb, CEE_LDARG_1);
4016 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4017 mono_mb_emit_byte (mb, CEE_PREFIX1);
4018 mono_mb_emit_byte (mb, CEE_CGT_UN);
4019 mono_mb_emit_byte (mb, CEE_PREFIX1);
4020 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4022 clause->handler_offset = mono_mb_get_label (mb);
4025 /* store exception */
4026 mono_mb_emit_stloc (mb, 1);
4028 mono_mb_emit_byte (mb, CEE_LDARG_1);
4029 mono_mb_emit_ldloc (mb, 1);
4030 mono_mb_emit_byte (mb, CEE_STIND_REF);
4032 mono_mb_emit_byte (mb, CEE_LDNULL);
4033 mono_mb_emit_stloc (mb, 0);
4035 /* Check for the abort exception */
4036 mono_mb_emit_ldloc (mb, 1);
4037 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4038 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4040 /* Delay the abort exception */
4041 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4043 mono_mb_patch_short_branch (mb, posna);
4044 mono_mb_emit_branch (mb, CEE_LEAVE);
4046 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4048 mono_mb_set_clauses (mb, 1, clause);
4051 mono_mb_patch_branch (mb, pos);
4052 //mono_mb_emit_ldloc (mb, 0);
4053 mono_mb_emit_byte (mb, CEE_RET);
4054 #endif /* DISABLE_JIT */
4056 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4058 mono_marshal_lock ();
4059 /* double-checked locking */
4061 method = mono_mb_create (mb, csig, 16, info);
4063 mono_marshal_unlock ();
4072 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4074 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4075 klass->name_space, klass->name);
4077 mono_mb_emit_exception_marshal_directive (mb, msg);
4082 * generates IL code for the icall wrapper (the generated method
4083 * calls the unmanaged code in func)
4084 * The wrapper info for the wrapper is a WrapperInfo structure.
4087 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4089 MonoMethodSignature *csig, *csig2;
4090 MonoMethodBuilder *mb;
4095 g_assert (sig->pinvoke);
4097 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4099 mb->method->save_lmf = 1;
4101 /* Add an explicit this argument */
4103 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4105 csig2 = signature_dup (mono_defaults.corlib, sig);
4109 mono_mb_emit_byte (mb, CEE_LDARG_0);
4111 for (i = 0; i < sig->param_count; i++)
4112 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4114 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4115 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4116 mono_mb_emit_calli (mb, csig2);
4117 if (check_exceptions)
4118 emit_thread_interrupt_checkpoint (mb);
4119 mono_mb_emit_byte (mb, CEE_RET);
4122 csig = signature_dup (mono_defaults.corlib, sig);
4124 if (csig->call_convention == MONO_CALL_VARARG)
4125 csig->call_convention = 0;
4127 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4128 info->d.icall.func = (gpointer)func;
4129 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4136 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4137 MonoMarshalSpec *spec,
4138 int conv_arg, MonoType **conv_arg_type,
4139 MarshalAction action)
4142 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4143 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4148 static MonoClass *ICustomMarshaler = NULL;
4149 static MonoMethod *cleanup_native, *cleanup_managed;
4150 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4151 MonoMethod *get_instance = NULL;
4152 MonoMethodBuilder *mb = m->mb;
4153 char *exception_msg = NULL;
4157 if (!ICustomMarshaler) {
4158 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4160 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4161 goto handle_exception;
4164 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4165 g_assert (cleanup_native);
4166 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4167 g_assert (cleanup_managed);
4168 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4169 g_assert (marshal_managed_to_native);
4170 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4171 g_assert (marshal_native_to_managed);
4173 mono_memory_barrier ();
4174 ICustomMarshaler = klass;
4177 if (spec->data.custom_data.image)
4178 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4180 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4181 g_assert (mtype != NULL);
4182 mklass = mono_class_from_mono_type (mtype);
4183 g_assert (mklass != NULL);
4185 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4186 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4188 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4190 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4191 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4192 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4193 (get_sig->params [0]->type != MONO_TYPE_STRING))
4194 get_instance = NULL;
4198 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);
4201 /* Throw exception and emit compensation code if neccesary */
4202 if (exception_msg) {
4204 case MARSHAL_ACTION_CONV_IN:
4205 case MARSHAL_ACTION_CONV_RESULT:
4206 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4207 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4208 mono_mb_emit_byte (mb, CEE_POP);
4210 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4211 g_free (exception_msg);
4214 case MARSHAL_ACTION_PUSH:
4215 mono_mb_emit_byte (mb, CEE_LDNULL);
4223 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4224 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4227 case MARSHAL_ACTION_CONV_IN:
4229 case MONO_TYPE_CLASS:
4230 case MONO_TYPE_OBJECT:
4231 case MONO_TYPE_STRING:
4232 case MONO_TYPE_ARRAY:
4233 case MONO_TYPE_SZARRAY:
4234 case MONO_TYPE_VALUETYPE:
4238 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4239 g_assert_not_reached ();
4243 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4245 mono_mb_emit_byte (mb, CEE_LDNULL);
4246 mono_mb_emit_stloc (mb, conv_arg);
4248 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4251 /* Minic MS.NET behavior */
4252 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4255 /* Check for null */
4256 mono_mb_emit_ldarg (mb, argnum);
4258 mono_mb_emit_byte (mb, CEE_LDIND_I);
4259 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4261 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4263 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4265 mono_mb_emit_ldarg (mb, argnum);
4267 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4269 if (t->type == MONO_TYPE_VALUETYPE) {
4271 * Since we can't determine the type of the argument, we
4272 * will assume the unmanaged function takes a pointer.
4274 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4276 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4279 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4280 mono_mb_emit_stloc (mb, conv_arg);
4282 mono_mb_patch_branch (mb, pos2);
4285 case MARSHAL_ACTION_CONV_OUT:
4286 /* Check for null */
4287 mono_mb_emit_ldloc (mb, conv_arg);
4288 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4291 mono_mb_emit_ldarg (mb, argnum);
4293 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4295 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4297 mono_mb_emit_ldloc (mb, conv_arg);
4298 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4299 mono_mb_emit_byte (mb, CEE_STIND_REF);
4300 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4301 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4303 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4305 mono_mb_emit_ldloc (mb, conv_arg);
4306 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4308 /* We have nowhere to store the result */
4309 mono_mb_emit_byte (mb, CEE_POP);
4312 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4314 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4316 mono_mb_emit_ldloc (mb, conv_arg);
4318 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4320 mono_mb_patch_branch (mb, pos2);
4323 case MARSHAL_ACTION_PUSH:
4325 mono_mb_emit_ldloc_addr (mb, conv_arg);
4327 mono_mb_emit_ldloc (mb, conv_arg);
4330 case MARSHAL_ACTION_CONV_RESULT:
4331 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4333 mono_mb_emit_stloc (mb, 3);
4335 mono_mb_emit_ldloc (mb, 3);
4336 mono_mb_emit_stloc (mb, loc1);
4338 /* Check for null */
4339 mono_mb_emit_ldloc (mb, 3);
4340 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4342 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4344 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4345 mono_mb_emit_byte (mb, CEE_DUP);
4347 mono_mb_emit_ldloc (mb, 3);
4348 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4349 mono_mb_emit_stloc (mb, 3);
4351 mono_mb_emit_ldloc (mb, loc1);
4352 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4354 mono_mb_patch_branch (mb, pos2);
4357 case MARSHAL_ACTION_MANAGED_CONV_IN:
4358 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4360 mono_mb_emit_byte (mb, CEE_LDNULL);
4361 mono_mb_emit_stloc (mb, conv_arg);
4363 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4366 /* Check for null */
4367 mono_mb_emit_ldarg (mb, argnum);
4369 mono_mb_emit_byte (mb, CEE_LDIND_I);
4370 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4372 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4373 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4375 mono_mb_emit_ldarg (mb, argnum);
4377 mono_mb_emit_byte (mb, CEE_LDIND_I);
4379 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4380 mono_mb_emit_stloc (mb, conv_arg);
4382 mono_mb_patch_branch (mb, pos2);
4385 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4386 g_assert (!t->byref);
4388 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4390 mono_mb_emit_stloc (mb, 3);
4392 mono_mb_emit_ldloc (mb, 3);
4393 mono_mb_emit_stloc (mb, loc1);
4395 /* Check for null */
4396 mono_mb_emit_ldloc (mb, 3);
4397 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4399 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4400 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4401 mono_mb_emit_byte (mb, CEE_DUP);
4403 mono_mb_emit_ldloc (mb, 3);
4404 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4405 mono_mb_emit_stloc (mb, 3);
4407 mono_mb_emit_ldloc (mb, loc1);
4408 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4410 mono_mb_patch_branch (mb, pos2);
4413 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4415 /* Check for null */
4416 mono_mb_emit_ldloc (mb, conv_arg);
4417 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4420 mono_mb_emit_ldarg (mb, argnum);
4422 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4424 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4426 mono_mb_emit_ldloc (mb, conv_arg);
4427 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4428 mono_mb_emit_byte (mb, CEE_STIND_I);
4431 /* Call CleanUpManagedData */
4432 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4434 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4436 mono_mb_emit_ldloc (mb, conv_arg);
4437 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4439 mono_mb_patch_branch (mb, pos2);
4443 g_assert_not_reached ();
4451 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4452 MonoMarshalSpec *spec,
4453 int conv_arg, MonoType **conv_arg_type,
4454 MarshalAction action)
4457 MonoMethodBuilder *mb = m->mb;
4460 case MARSHAL_ACTION_CONV_IN: {
4461 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4463 g_assert (t->type == MONO_TYPE_OBJECT);
4464 g_assert (!t->byref);
4466 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4467 mono_mb_emit_ldarg (mb, argnum);
4468 mono_mb_emit_icon (mb, encoding);
4469 mono_mb_emit_icon (mb, t->attrs);
4470 mono_mb_emit_icall (mb, mono_marshal_asany);
4471 mono_mb_emit_stloc (mb, conv_arg);
4475 case MARSHAL_ACTION_PUSH:
4476 mono_mb_emit_ldloc (mb, conv_arg);
4479 case MARSHAL_ACTION_CONV_OUT: {
4480 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4482 mono_mb_emit_ldarg (mb, argnum);
4483 mono_mb_emit_ldloc (mb, conv_arg);
4484 mono_mb_emit_icon (mb, encoding);
4485 mono_mb_emit_icon (mb, t->attrs);
4486 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4491 g_assert_not_reached ();
4498 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4499 MonoMarshalSpec *spec,
4500 int conv_arg, MonoType **conv_arg_type,
4501 MarshalAction action)
4504 MonoMethodBuilder *mb = m->mb;
4505 MonoClass *klass, *date_time_class;
4508 klass = mono_class_from_mono_type (t);
4510 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4513 case MARSHAL_ACTION_CONV_IN:
4514 if (klass == date_time_class) {
4515 /* Convert it to an OLE DATE type */
4516 static MonoMethod *to_oadate;
4519 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4520 g_assert (to_oadate);
4522 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4525 mono_mb_emit_ldarg (mb, argnum);
4526 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4529 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4531 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4533 mono_mb_emit_ldarg_addr (mb, argnum);
4534 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4535 mono_mb_emit_stloc (mb, conv_arg);
4539 mono_mb_patch_branch (mb, pos);
4543 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4544 klass->blittable || klass->enumtype)
4547 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4549 /* store the address of the source into local variable 0 */
4551 mono_mb_emit_ldarg (mb, argnum);
4553 mono_mb_emit_ldarg_addr (mb, argnum);
4555 mono_mb_emit_stloc (mb, 0);
4557 /* allocate space for the native struct and
4558 * store the address into local variable 1 (dest) */
4559 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4560 mono_mb_emit_byte (mb, CEE_PREFIX1);
4561 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4562 mono_mb_emit_stloc (mb, conv_arg);
4565 mono_mb_emit_ldloc (mb, 0);
4566 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4569 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4571 mono_mb_emit_ldloc (mb, conv_arg);
4572 mono_mb_emit_stloc (mb, 1);
4574 /* emit valuetype conversion code */
4575 emit_struct_conv (mb, klass, FALSE);
4579 mono_mb_patch_branch (mb, pos);
4582 case MARSHAL_ACTION_PUSH:
4583 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4585 g_assert (!t->byref);
4587 /* Have to change the signature since the vtype is passed byref */
4588 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4590 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4591 klass->blittable || klass->enumtype)
4592 mono_mb_emit_ldarg_addr (mb, argnum);
4594 mono_mb_emit_ldloc (mb, conv_arg);
4598 if (klass == date_time_class) {
4600 mono_mb_emit_ldloc_addr (mb, conv_arg);
4602 mono_mb_emit_ldloc (mb, conv_arg);
4606 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4607 klass->blittable || klass->enumtype) {
4608 mono_mb_emit_ldarg (mb, argnum);
4611 mono_mb_emit_ldloc (mb, conv_arg);
4613 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4614 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4618 case MARSHAL_ACTION_CONV_OUT:
4619 if (klass == date_time_class) {
4620 /* Convert from an OLE DATE type */
4621 static MonoMethod *from_oadate;
4626 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4628 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4629 g_assert (from_oadate);
4631 mono_mb_emit_ldarg (mb, argnum);
4632 mono_mb_emit_ldloc (mb, conv_arg);
4633 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4634 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4639 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4640 klass->blittable || klass->enumtype)
4644 /* dst = argument */
4645 mono_mb_emit_ldarg (mb, argnum);
4646 mono_mb_emit_stloc (mb, 1);
4648 mono_mb_emit_ldloc (mb, 1);
4649 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4651 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4652 /* src = tmp_locals [i] */
4653 mono_mb_emit_ldloc (mb, conv_arg);
4654 mono_mb_emit_stloc (mb, 0);
4656 /* emit valuetype conversion code */
4657 emit_struct_conv (mb, klass, TRUE);
4661 emit_struct_free (mb, klass, conv_arg);
4664 mono_mb_patch_branch (mb, pos);
4667 case MARSHAL_ACTION_CONV_RESULT:
4668 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4670 mono_mb_emit_stloc (mb, 3);
4674 /* load pointer to returned value type */
4675 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4676 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4677 /* store the address of the source into local variable 0 */
4678 mono_mb_emit_stloc (mb, 0);
4680 mono_mb_emit_ldloc_addr (mb, 3);
4681 mono_mb_emit_stloc (mb, 1);
4683 /* emit valuetype conversion code */
4684 emit_struct_conv (mb, klass, TRUE);
4687 case MARSHAL_ACTION_MANAGED_CONV_IN:
4688 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4689 klass->blittable || klass->enumtype) {
4694 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4696 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4700 mono_mb_emit_ldarg (mb, argnum);
4702 mono_mb_emit_ldarg_addr (mb, argnum);
4703 mono_mb_emit_stloc (mb, 0);
4706 mono_mb_emit_ldloc (mb, 0);
4707 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4710 mono_mb_emit_ldloc_addr (mb, conv_arg);
4711 mono_mb_emit_stloc (mb, 1);
4713 /* emit valuetype conversion code */
4714 emit_struct_conv (mb, klass, TRUE);
4717 mono_mb_patch_branch (mb, pos);
4720 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4721 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4722 klass->blittable || klass->enumtype) {
4726 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4729 /* Check for null */
4730 mono_mb_emit_ldarg (mb, argnum);
4731 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4734 mono_mb_emit_ldloc_addr (mb, conv_arg);
4735 mono_mb_emit_stloc (mb, 0);
4738 mono_mb_emit_ldarg (mb, argnum);
4739 mono_mb_emit_stloc (mb, 1);
4741 /* emit valuetype conversion code */
4742 emit_struct_conv (mb, klass, FALSE);
4744 mono_mb_patch_branch (mb, pos2);
4747 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4748 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4749 klass->blittable || klass->enumtype) {
4750 mono_mb_emit_stloc (mb, 3);
4755 /* load pointer to returned value type */
4756 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4757 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4759 /* store the address of the source into local variable 0 */
4760 mono_mb_emit_stloc (mb, 0);
4761 /* allocate space for the native struct and
4762 * store the address into dst_ptr */
4763 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4764 m->retobj_class = klass;
4765 g_assert (m->retobj_var);
4766 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4767 mono_mb_emit_byte (mb, CEE_CONV_I);
4768 mono_mb_emit_icall (mb, mono_marshal_alloc);
4769 mono_mb_emit_stloc (mb, 1);
4770 mono_mb_emit_ldloc (mb, 1);
4771 mono_mb_emit_stloc (mb, m->retobj_var);
4773 /* emit valuetype conversion code */
4774 emit_struct_conv (mb, klass, FALSE);
4778 g_assert_not_reached ();
4785 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4786 MonoMarshalSpec *spec,
4787 int conv_arg, MonoType **conv_arg_type,
4788 MarshalAction action)
4792 case MARSHAL_ACTION_CONV_IN:
4793 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4795 case MARSHAL_ACTION_MANAGED_CONV_IN:
4796 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4800 MonoMethodBuilder *mb = m->mb;
4801 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4802 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4806 case MARSHAL_ACTION_CONV_IN:
4807 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4808 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4811 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4814 mono_mb_emit_ldarg (mb, argnum);
4815 mono_mb_emit_byte (mb, CEE_LDIND_I);
4817 mono_mb_emit_ldarg (mb, argnum);
4821 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4822 mono_mb_emit_exception_marshal_directive (mb, msg);
4824 mono_mb_emit_icall (mb, conv_to_icall (conv));
4826 mono_mb_emit_stloc (mb, conv_arg);
4830 case MARSHAL_ACTION_CONV_OUT:
4831 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4833 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4834 mono_mb_emit_exception_marshal_directive (mb, msg);
4838 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4839 static MonoMethod *m;
4842 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4847 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4848 mono_mb_emit_exception_marshal_directive (mb, msg);
4853 * Have to allocate a new string with the same length as the original, and
4854 * copy the contents of the buffer pointed to by CONV_ARG into it.
4856 g_assert (t->byref);
4857 mono_mb_emit_ldarg (mb, argnum);
4858 mono_mb_emit_ldloc (mb, conv_arg);
4859 mono_mb_emit_ldarg (mb, argnum);
4860 mono_mb_emit_byte (mb, CEE_LDIND_I);
4861 mono_mb_emit_managed_call (mb, m, NULL);
4862 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4863 mono_mb_emit_byte (mb, CEE_STIND_REF);
4864 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4865 mono_mb_emit_ldarg (mb, argnum);
4866 mono_mb_emit_ldloc (mb, conv_arg);
4867 mono_mb_emit_icall (mb, conv_to_icall (conv));
4868 mono_mb_emit_byte (mb, CEE_STIND_REF);
4873 mono_mb_emit_ldloc (mb, conv_arg);
4874 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4875 mono_mb_emit_icall (mb, mono_free_bstr);
4877 mono_mb_emit_icall (mb, mono_marshal_free);
4881 case MARSHAL_ACTION_PUSH:
4882 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4883 mono_mb_emit_ldloc_addr (mb, conv_arg);
4885 mono_mb_emit_ldloc (mb, conv_arg);
4888 case MARSHAL_ACTION_CONV_RESULT:
4889 mono_mb_emit_stloc (mb, 0);
4891 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4893 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4894 mono_mb_emit_exception_marshal_directive (mb, msg);
4898 mono_mb_emit_ldloc (mb, 0);
4899 mono_mb_emit_icall (mb, conv_to_icall (conv));
4900 mono_mb_emit_stloc (mb, 3);
4902 /* free the string */
4903 mono_mb_emit_ldloc (mb, 0);
4904 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4905 mono_mb_emit_icall (mb, mono_free_bstr);
4907 mono_mb_emit_icall (mb, mono_marshal_free);
4910 case MARSHAL_ACTION_MANAGED_CONV_IN:
4911 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4913 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4916 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4920 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4922 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4923 mono_mb_emit_exception_marshal_directive (mb, msg);
4927 mono_mb_emit_ldarg (mb, argnum);
4929 mono_mb_emit_byte (mb, CEE_LDIND_I);
4930 mono_mb_emit_icall (mb, conv_to_icall (conv));
4931 mono_mb_emit_stloc (mb, conv_arg);
4934 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4937 mono_mb_emit_ldarg (mb, argnum);
4938 mono_mb_emit_ldloc (mb, conv_arg);
4939 mono_mb_emit_icall (mb, conv_to_icall (conv));
4940 mono_mb_emit_byte (mb, CEE_STIND_I);
4945 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4946 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4947 /* We need to make a copy so the caller is able to free it */
4948 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4950 mono_mb_emit_icall (mb, conv_to_icall (conv));
4951 mono_mb_emit_stloc (mb, 3);
4955 g_assert_not_reached ();
4963 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4964 MonoMarshalSpec *spec, int conv_arg,
4965 MonoType **conv_arg_type, MarshalAction action)
4968 if (action == MARSHAL_ACTION_CONV_IN)
4969 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4971 MonoMethodBuilder *mb = m->mb;
4974 case MARSHAL_ACTION_CONV_IN: {
4975 MonoType *intptr_type;
4976 int dar_release_slot, pos;
4978 intptr_type = &mono_defaults.int_class->byval_arg;
4979 conv_arg = mono_mb_add_local (mb, intptr_type);
4980 *conv_arg_type = intptr_type;
4982 if (!sh_dangerous_add_ref)
4983 init_safe_handle ();
4985 mono_mb_emit_ldarg (mb, argnum);
4986 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4987 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
4989 mono_mb_patch_branch (mb, pos);
4992 * My tests in show that ref SafeHandles are not really
4993 * passed as ref objects. Instead a NULL is passed as the
4996 mono_mb_emit_icon (mb, 0);
4997 mono_mb_emit_stloc (mb, conv_arg);
5001 /* Create local to hold the ref parameter to DangerousAddRef */
5002 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5004 /* set release = false; */
5005 mono_mb_emit_icon (mb, 0);
5006 mono_mb_emit_stloc (mb, dar_release_slot);
5008 /* safehandle.DangerousAddRef (ref release) */
5009 mono_mb_emit_ldarg (mb, argnum);
5010 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5011 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5013 /* Pull the handle field from SafeHandle */
5014 mono_mb_emit_ldarg (mb, argnum);
5015 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5016 mono_mb_emit_byte (mb, CEE_LDIND_I);
5017 mono_mb_emit_stloc (mb, conv_arg);
5022 case MARSHAL_ACTION_PUSH:
5024 mono_mb_emit_ldloc_addr (mb, conv_arg);
5026 mono_mb_emit_ldloc (mb, conv_arg);
5029 case MARSHAL_ACTION_CONV_OUT: {
5030 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5031 int dar_release_slot = conv_arg + 1;
5034 if (!sh_dangerous_release)
5035 init_safe_handle ();
5041 * My tests indicate that ref SafeHandles parameters are not actually
5042 * passed by ref, but instead a new Handle is created regardless of
5043 * whether a change happens in the unmanaged side.
5045 * Also, the Handle is created before calling into unmanaged code,
5046 * but we do not support that mechanism (getting to the original
5047 * handle) and it makes no difference where we create this
5049 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5051 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5054 /* refval = new SafeHandleDerived ()*/
5055 mono_mb_emit_ldarg (mb, argnum);
5056 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5057 mono_mb_emit_byte (mb, CEE_STIND_REF);
5059 /* refval.handle = returned_handle */
5060 mono_mb_emit_ldarg (mb, argnum);
5061 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5062 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5063 mono_mb_emit_ldloc (mb, conv_arg);
5064 mono_mb_emit_byte (mb, CEE_STIND_I);
5066 mono_mb_emit_ldloc (mb, dar_release_slot);
5067 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5068 mono_mb_emit_ldarg (mb, argnum);
5069 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5070 mono_mb_patch_branch (mb, label_next);
5075 case MARSHAL_ACTION_CONV_RESULT: {
5076 MonoMethod *ctor = NULL;
5077 int intptr_handle_slot;
5079 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5080 mono_mb_emit_byte (mb, CEE_POP);
5081 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5085 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5087 mono_mb_emit_byte (mb, CEE_POP);
5088 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5091 /* Store the IntPtr results into a local */
5092 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5093 mono_mb_emit_stloc (mb, intptr_handle_slot);
5095 /* Create return value */
5096 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5097 mono_mb_emit_stloc (mb, 3);
5099 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5100 mono_mb_emit_ldloc (mb, 3);
5101 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5102 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5103 mono_mb_emit_byte (mb, CEE_STIND_I);
5107 case MARSHAL_ACTION_MANAGED_CONV_IN:
5108 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5111 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5112 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5115 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5116 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5119 printf ("Unhandled case for MarshalAction: %d\n", action);
5127 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5128 MonoMarshalSpec *spec, int conv_arg,
5129 MonoType **conv_arg_type, MarshalAction action)
5132 if (action == MARSHAL_ACTION_CONV_IN)
5133 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5135 MonoMethodBuilder *mb = m->mb;
5138 case MARSHAL_ACTION_CONV_IN: {
5139 MonoType *intptr_type;
5141 intptr_type = &mono_defaults.int_class->byval_arg;
5142 conv_arg = mono_mb_add_local (mb, intptr_type);
5143 *conv_arg_type = intptr_type;
5146 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5147 mono_mb_emit_exception_marshal_directive (mb, msg);
5150 mono_mb_emit_ldarg_addr (mb, argnum);
5151 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5152 mono_mb_emit_byte (mb, CEE_ADD);
5153 mono_mb_emit_byte (mb, CEE_LDIND_I);
5154 mono_mb_emit_stloc (mb, conv_arg);
5158 case MARSHAL_ACTION_PUSH:
5159 mono_mb_emit_ldloc (mb, conv_arg);
5162 case MARSHAL_ACTION_CONV_OUT: {
5163 /* no resource release required */
5167 case MARSHAL_ACTION_CONV_RESULT: {
5168 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5169 mono_mb_emit_exception_marshal_directive (mb, msg);
5173 case MARSHAL_ACTION_MANAGED_CONV_IN:
5174 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5177 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5178 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5181 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5182 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5185 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5193 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5194 MonoMarshalSpec *spec,
5195 int conv_arg, MonoType **conv_arg_type,
5196 MarshalAction action)
5199 if (action == MARSHAL_ACTION_CONV_IN)
5200 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5202 MonoMethodBuilder *mb = m->mb;
5203 MonoClass *klass = mono_class_from_mono_type (t);
5207 case MARSHAL_ACTION_CONV_IN:
5208 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5209 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5211 m->orig_conv_args [argnum] = 0;
5213 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5214 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5215 mono_mb_emit_exception_marshal_directive (mb, msg);
5219 if (klass->delegate) {
5221 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5222 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5223 mono_mb_emit_exception_marshal_directive (mb, msg);
5225 mono_mb_emit_byte (mb, CEE_LDNULL);
5226 mono_mb_emit_stloc (mb, conv_arg);
5228 mono_mb_emit_ldarg (mb, argnum);
5229 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5230 mono_mb_emit_stloc (mb, conv_arg);
5232 } else if (klass == mono_defaults.stringbuilder_class) {
5233 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5234 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5238 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5239 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5240 mono_mb_emit_exception_marshal_directive (mb, msg);
5246 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5250 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5251 mono_mb_emit_exception_marshal_directive (mb, msg);
5255 mono_mb_emit_ldarg (mb, argnum);
5257 mono_mb_emit_byte (mb, CEE_LDIND_I);
5259 mono_mb_emit_icall (mb, conv_to_icall (conv));
5260 mono_mb_emit_stloc (mb, conv_arg);
5261 } else if (klass->blittable) {
5262 mono_mb_emit_byte (mb, CEE_LDNULL);
5263 mono_mb_emit_stloc (mb, conv_arg);
5265 mono_mb_emit_ldarg (mb, argnum);
5266 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5268 mono_mb_emit_ldarg (mb, argnum);
5269 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5270 mono_mb_emit_stloc (mb, conv_arg);
5272 mono_mb_patch_branch (mb, pos);
5275 mono_mb_emit_byte (mb, CEE_LDNULL);
5276 mono_mb_emit_stloc (mb, conv_arg);
5279 /* we dont need any conversions for out parameters */
5280 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5283 mono_mb_emit_ldarg (mb, argnum);
5284 mono_mb_emit_byte (mb, CEE_LDIND_I);
5287 mono_mb_emit_ldarg (mb, argnum);
5288 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5289 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5292 /* store the address of the source into local variable 0 */
5293 mono_mb_emit_stloc (mb, 0);
5294 mono_mb_emit_ldloc (mb, 0);
5295 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5297 /* allocate space for the native struct and store the address */
5298 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5299 mono_mb_emit_byte (mb, CEE_PREFIX1);
5300 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5301 mono_mb_emit_stloc (mb, conv_arg);
5304 /* Need to store the original buffer so we can free it later */
5305 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5306 mono_mb_emit_ldloc (mb, conv_arg);
5307 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5310 /* set the src_ptr */
5311 mono_mb_emit_ldloc (mb, 0);
5312 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5313 mono_mb_emit_stloc (mb, 0);
5316 mono_mb_emit_ldloc (mb, conv_arg);
5317 mono_mb_emit_stloc (mb, 1);
5319 /* emit valuetype conversion code */
5320 emit_struct_conv (mb, klass, FALSE);
5322 mono_mb_patch_branch (mb, pos);
5326 case MARSHAL_ACTION_CONV_OUT:
5327 if (klass == mono_defaults.stringbuilder_class) {
5329 MonoMarshalNative encoding;
5330 MonoMarshalConv conv;
5332 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5333 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5335 g_assert (encoding != -1);
5338 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5342 mono_mb_emit_ldarg (mb, argnum);
5343 mono_mb_emit_ldloc (mb, conv_arg);
5346 case MONO_NATIVE_LPWSTR:
5347 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5349 case MONO_NATIVE_LPSTR:
5350 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5353 g_assert_not_reached ();
5356 mono_mb_emit_byte (mb, CEE_STIND_REF);
5358 mono_mb_emit_ldarg (mb, argnum);
5359 mono_mb_emit_ldloc (mb, conv_arg);
5361 mono_mb_emit_icall (mb, conv_to_icall (conv));
5365 mono_mb_emit_ldloc (mb, conv_arg);
5366 mono_mb_emit_icall (mb, mono_marshal_free);
5371 if (klass->delegate) {
5373 mono_mb_emit_ldarg (mb, argnum);
5374 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5375 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5376 mono_mb_emit_ldloc (mb, conv_arg);
5377 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5378 mono_mb_emit_byte (mb, CEE_STIND_REF);
5383 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5384 /* allocate a new object */
5385 mono_mb_emit_ldarg (mb, argnum);
5386 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5387 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5388 mono_mb_emit_byte (mb, CEE_STIND_REF);
5391 /* dst = *argument */
5392 mono_mb_emit_ldarg (mb, argnum);
5395 mono_mb_emit_byte (mb, CEE_LDIND_I);
5397 mono_mb_emit_stloc (mb, 1);
5399 mono_mb_emit_ldloc (mb, 1);
5400 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5402 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5403 mono_mb_emit_ldloc (mb, 1);
5404 mono_mb_emit_icon (mb, sizeof (MonoObject));
5405 mono_mb_emit_byte (mb, CEE_ADD);
5406 mono_mb_emit_stloc (mb, 1);
5408 /* src = tmp_locals [i] */
5409 mono_mb_emit_ldloc (mb, conv_arg);
5410 mono_mb_emit_stloc (mb, 0);
5412 /* emit valuetype conversion code */
5413 emit_struct_conv (mb, klass, TRUE);
5415 /* Free the structure returned by the native code */
5416 emit_struct_free (mb, klass, conv_arg);
5418 if (m->orig_conv_args [argnum]) {
5420 * If the native function changed the pointer, then free
5421 * the original structure plus the new pointer.
5423 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5424 mono_mb_emit_ldloc (mb, conv_arg);
5425 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5427 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5428 g_assert (m->orig_conv_args [argnum]);
5430 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5433 mono_mb_emit_ldloc (mb, conv_arg);
5434 mono_mb_emit_icall (mb, mono_marshal_free);
5436 mono_mb_patch_branch (mb, pos2);
5440 /* Free the original structure passed to native code */
5441 emit_struct_free (mb, klass, conv_arg);
5443 mono_mb_patch_branch (mb, pos);
5446 case MARSHAL_ACTION_PUSH:
5448 mono_mb_emit_ldloc_addr (mb, conv_arg);
5450 mono_mb_emit_ldloc (mb, conv_arg);
5453 case MARSHAL_ACTION_CONV_RESULT:
5454 if (klass->delegate) {
5455 g_assert (!t->byref);
5456 mono_mb_emit_stloc (mb, 0);
5457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5458 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5459 mono_mb_emit_ldloc (mb, 0);
5460 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5461 mono_mb_emit_stloc (mb, 3);
5464 mono_mb_emit_stloc (mb, 0);
5466 /* Make a copy since emit_conv modifies local 0 */
5467 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5468 mono_mb_emit_ldloc (mb, 0);
5469 mono_mb_emit_stloc (mb, loc);
5471 mono_mb_emit_byte (mb, CEE_LDNULL);
5472 mono_mb_emit_stloc (mb, 3);
5474 mono_mb_emit_ldloc (mb, 0);
5475 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5477 /* allocate result object */
5479 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5480 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5481 mono_mb_emit_stloc (mb, 3);
5485 mono_mb_emit_ldloc (mb, 3);
5486 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5487 mono_mb_emit_stloc (mb, 1);
5489 /* emit conversion code */
5490 emit_struct_conv (mb, klass, TRUE);
5492 emit_struct_free (mb, klass, loc);
5494 /* Free the pointer allocated by unmanaged code */
5495 mono_mb_emit_ldloc (mb, loc);
5496 mono_mb_emit_icall (mb, mono_marshal_free);
5497 mono_mb_patch_branch (mb, pos);
5501 case MARSHAL_ACTION_MANAGED_CONV_IN:
5502 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5504 if (klass->delegate) {
5505 g_assert (!t->byref);
5506 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5507 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5508 mono_mb_emit_ldarg (mb, argnum);
5509 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5510 mono_mb_emit_stloc (mb, conv_arg);
5514 if (klass == mono_defaults.stringbuilder_class) {
5515 MonoMarshalNative encoding;
5517 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5520 g_assert (encoding == MONO_NATIVE_LPSTR);
5522 g_assert (!t->byref);
5523 g_assert (encoding != -1);
5525 mono_mb_emit_ldarg (mb, argnum);
5526 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5527 mono_mb_emit_stloc (mb, conv_arg);
5531 /* The class can not have an automatic layout */
5532 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5533 mono_mb_emit_auto_layout_exception (mb, klass);
5537 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5538 mono_mb_emit_byte (mb, CEE_LDNULL);
5539 mono_mb_emit_stloc (mb, conv_arg);
5544 mono_mb_emit_ldarg (mb, argnum);
5548 /* Check for NULL and raise an exception */
5549 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5551 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5553 mono_mb_patch_branch (mb, pos2);
5554 mono_mb_emit_ldarg (mb, argnum);
5555 mono_mb_emit_byte (mb, CEE_LDIND_I);
5558 mono_mb_emit_stloc (mb, 0);
5560 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5561 mono_mb_emit_stloc (mb, conv_arg);
5563 mono_mb_emit_ldloc (mb, 0);
5564 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5566 /* Create and set dst */
5567 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5568 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5569 mono_mb_emit_stloc (mb, conv_arg);
5570 mono_mb_emit_ldloc (mb, conv_arg);
5571 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5572 mono_mb_emit_stloc (mb, 1);
5574 /* emit valuetype conversion code */
5575 emit_struct_conv (mb, klass, TRUE);
5577 mono_mb_patch_branch (mb, pos);
5580 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5582 /* Check for null */
5583 mono_mb_emit_ldloc (mb, conv_arg);
5584 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5585 mono_mb_emit_ldarg (mb, argnum);
5586 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5587 mono_mb_emit_byte (mb, CEE_STIND_REF);
5588 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5590 mono_mb_patch_branch (mb, pos);
5593 mono_mb_emit_ldloc (mb, conv_arg);
5594 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5595 mono_mb_emit_stloc (mb, 0);
5597 /* Allocate and set dest */
5598 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5599 mono_mb_emit_byte (mb, CEE_CONV_I);
5600 mono_mb_emit_icall (mb, mono_marshal_alloc);
5601 mono_mb_emit_stloc (mb, 1);
5603 /* Update argument pointer */
5604 mono_mb_emit_ldarg (mb, argnum);
5605 mono_mb_emit_ldloc (mb, 1);
5606 mono_mb_emit_byte (mb, CEE_STIND_I);
5608 /* emit valuetype conversion code */
5609 emit_struct_conv (mb, klass, FALSE);
5611 mono_mb_patch_branch (mb, pos2);
5613 /* byval [Out] marshalling */
5615 /* FIXME: Handle null */
5618 mono_mb_emit_ldloc (mb, conv_arg);
5619 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5620 mono_mb_emit_stloc (mb, 0);
5623 mono_mb_emit_ldarg (mb, argnum);
5624 mono_mb_emit_stloc (mb, 1);
5626 /* emit valuetype conversion code */
5627 emit_struct_conv (mb, klass, FALSE);
5631 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5632 if (klass->delegate) {
5633 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5634 mono_mb_emit_stloc (mb, 3);
5638 /* The class can not have an automatic layout */
5639 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5640 mono_mb_emit_auto_layout_exception (mb, klass);
5644 mono_mb_emit_stloc (mb, 0);
5645 /* Check for null */
5646 mono_mb_emit_ldloc (mb, 0);
5647 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5648 mono_mb_emit_byte (mb, CEE_LDNULL);
5649 mono_mb_emit_stloc (mb, 3);
5650 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5652 mono_mb_patch_branch (mb, pos);
5655 mono_mb_emit_ldloc (mb, 0);
5656 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5657 mono_mb_emit_stloc (mb, 0);
5659 /* Allocate and set dest */
5660 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5661 mono_mb_emit_byte (mb, CEE_CONV_I);
5662 mono_mb_emit_icall (mb, mono_marshal_alloc);
5663 mono_mb_emit_byte (mb, CEE_DUP);
5664 mono_mb_emit_stloc (mb, 1);
5665 mono_mb_emit_stloc (mb, 3);
5667 emit_struct_conv (mb, klass, FALSE);
5669 mono_mb_patch_branch (mb, pos2);
5673 g_assert_not_reached ();
5684 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5685 MonoMarshalSpec *spec,
5686 int conv_arg, MonoType **conv_arg_type,
5687 MarshalAction action)
5689 MonoMethodBuilder *mb = m->mb;
5690 static MonoMethod *get_object_for_native_variant = NULL;
5691 static MonoMethod *get_native_variant_for_object = NULL;
5693 if (!get_object_for_native_variant)
5694 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5695 g_assert (get_object_for_native_variant);
5697 if (!get_native_variant_for_object)
5698 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5699 g_assert (get_native_variant_for_object);
5702 case MARSHAL_ACTION_CONV_IN: {
5703 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5706 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5708 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5710 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5713 mono_mb_emit_ldarg (mb, argnum);
5715 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5716 mono_mb_emit_ldloc_addr (mb, conv_arg);
5717 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5721 case MARSHAL_ACTION_CONV_OUT: {
5722 static MonoMethod *variant_clear = NULL;
5725 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5726 g_assert (variant_clear);
5729 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5730 mono_mb_emit_ldarg (mb, argnum);
5731 mono_mb_emit_ldloc_addr (mb, conv_arg);
5732 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5733 mono_mb_emit_byte (mb, CEE_STIND_REF);
5736 mono_mb_emit_ldloc_addr (mb, conv_arg);
5737 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5741 case MARSHAL_ACTION_PUSH:
5743 mono_mb_emit_ldloc_addr (mb, conv_arg);
5745 mono_mb_emit_ldloc (mb, conv_arg);
5748 case MARSHAL_ACTION_CONV_RESULT: {
5749 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5750 mono_mb_emit_exception_marshal_directive (mb, msg);
5754 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5755 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5758 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5760 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5762 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5766 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_ldarg_addr (mb, argnum);
5769 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5770 mono_mb_emit_stloc (mb, conv_arg);
5774 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5775 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5776 mono_mb_emit_ldloc (mb, conv_arg);
5777 mono_mb_emit_ldarg (mb, argnum);
5778 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5783 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5784 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5785 mono_mb_emit_exception_marshal_directive (mb, msg);
5790 g_assert_not_reached ();
5796 #endif /* DISABLE_COM */
5797 #endif /* DISABLE_JIT */
5800 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5802 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5803 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5805 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5807 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5819 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5820 MonoMarshalSpec *spec,
5821 int conv_arg, MonoType **conv_arg_type,
5822 MarshalAction action)
5826 case MARSHAL_ACTION_CONV_IN:
5827 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5829 case MARSHAL_ACTION_MANAGED_CONV_IN:
5830 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5834 MonoMethodBuilder *mb = m->mb;
5835 MonoClass *klass = mono_class_from_mono_type (t);
5836 gboolean need_convert, need_free;
5837 MonoMarshalNative encoding;
5839 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5842 case MARSHAL_ACTION_CONV_IN:
5843 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5844 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5846 if (klass->element_class->blittable) {
5847 mono_mb_emit_ldarg (mb, argnum);
5849 mono_mb_emit_byte (mb, CEE_LDIND_I);
5850 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5851 mono_mb_emit_stloc (mb, conv_arg);
5854 guint32 label1, label2, label3;
5855 int index_var, src_var, dest_ptr, esize;
5856 MonoMarshalConv conv;
5857 gboolean is_string = FALSE;
5859 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5861 eklass = klass->element_class;
5863 if (eklass == mono_defaults.string_class) {
5865 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5867 else if (eklass == mono_defaults.stringbuilder_class) {
5869 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5874 if (is_string && conv == -1) {
5875 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5876 mono_mb_emit_exception_marshal_directive (mb, msg);
5880 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5881 mono_mb_emit_ldarg (mb, argnum);
5883 mono_mb_emit_byte (mb, CEE_LDIND_I);
5884 mono_mb_emit_stloc (mb, src_var);
5887 mono_mb_emit_ldloc (mb, src_var);
5888 mono_mb_emit_stloc (mb, conv_arg);
5889 mono_mb_emit_ldloc (mb, src_var);
5890 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5893 esize = sizeof (gpointer);
5894 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5895 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5897 esize = mono_class_native_size (eklass, NULL);
5899 /* allocate space for the native struct and store the address */
5900 mono_mb_emit_icon (mb, esize);
5901 mono_mb_emit_ldloc (mb, src_var);
5902 mono_mb_emit_byte (mb, CEE_LDLEN);
5904 if (eklass == mono_defaults.string_class) {
5905 /* Make the array bigger for the terminating null */
5906 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5907 mono_mb_emit_byte (mb, CEE_ADD);
5909 mono_mb_emit_byte (mb, CEE_MUL);
5910 mono_mb_emit_byte (mb, CEE_PREFIX1);
5911 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5912 mono_mb_emit_stloc (mb, conv_arg);
5914 mono_mb_emit_ldloc (mb, conv_arg);
5915 mono_mb_emit_stloc (mb, dest_ptr);
5917 /* Emit marshalling loop */
5918 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5919 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5920 mono_mb_emit_stloc (mb, index_var);
5921 label2 = mono_mb_get_label (mb);
5922 mono_mb_emit_ldloc (mb, index_var);
5923 mono_mb_emit_ldloc (mb, src_var);
5924 mono_mb_emit_byte (mb, CEE_LDLEN);
5925 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5927 /* Emit marshalling code */
5930 mono_mb_emit_ldloc (mb, dest_ptr);
5931 mono_mb_emit_ldloc (mb, src_var);
5932 mono_mb_emit_ldloc (mb, index_var);
5933 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5934 mono_mb_emit_icall (mb, conv_to_icall (conv));
5935 mono_mb_emit_byte (mb, CEE_STIND_I);
5937 /* set the src_ptr */
5938 mono_mb_emit_ldloc (mb, src_var);
5939 mono_mb_emit_ldloc (mb, index_var);
5940 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5941 mono_mb_emit_stloc (mb, 0);
5944 mono_mb_emit_ldloc (mb, dest_ptr);
5945 mono_mb_emit_stloc (mb, 1);
5947 /* emit valuetype conversion code */
5948 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5951 mono_mb_emit_add_to_local (mb, index_var, 1);
5952 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5954 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5956 mono_mb_patch_branch (mb, label3);
5958 if (eklass == mono_defaults.string_class) {
5959 /* Null terminate */
5960 mono_mb_emit_ldloc (mb, dest_ptr);
5961 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5962 mono_mb_emit_byte (mb, CEE_STIND_REF);
5965 mono_mb_patch_branch (mb, label1);
5970 case MARSHAL_ACTION_CONV_OUT:
5971 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5972 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);
5973 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5976 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
5977 int param_num = spec->data.array_data.param_num;
5978 MonoType *param_type;
5980 param_type = m->sig->params [param_num];
5982 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
5983 char *msg = g_strdup ("Not implemented.");
5984 mono_mb_emit_exception_marshal_directive (mb, msg);
5988 mono_mb_emit_ldarg (mb, argnum);
5990 /* Create the managed array */
5991 mono_mb_emit_ldarg (mb, param_num);
5992 if (m->sig->params [param_num]->byref)
5993 // FIXME: Support other types
5994 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5995 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
5996 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
5997 /* Store into argument */
5998 mono_mb_emit_byte (mb, CEE_STIND_I);
6001 if (need_convert || need_free) {
6002 /* FIXME: Optimize blittable case */
6004 guint32 label1, label2, label3;
6005 int index_var, src_ptr, loc, esize;
6007 eklass = klass->element_class;
6008 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6009 esize = sizeof (gpointer);
6010 else if (eklass == mono_defaults.char_class)
6011 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6013 esize = mono_class_native_size (eklass, NULL);
6014 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6015 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6018 mono_mb_emit_ldarg (mb, argnum);
6020 mono_mb_emit_byte (mb, CEE_LDIND_I);
6021 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6023 mono_mb_emit_ldloc (mb, conv_arg);
6024 mono_mb_emit_stloc (mb, src_ptr);
6026 /* Emit marshalling loop */
6027 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6028 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6029 mono_mb_emit_stloc (mb, index_var);
6030 label2 = mono_mb_get_label (mb);
6031 mono_mb_emit_ldloc (mb, index_var);
6032 mono_mb_emit_ldarg (mb, argnum);
6034 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6035 mono_mb_emit_byte (mb, CEE_LDLEN);
6036 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6038 /* Emit marshalling code */
6040 if (eklass == mono_defaults.stringbuilder_class) {
6041 gboolean need_free2;
6042 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6044 g_assert (conv != -1);
6047 mono_mb_emit_ldarg (mb, argnum);
6049 mono_mb_emit_byte (mb, CEE_LDIND_I);
6050 mono_mb_emit_ldloc (mb, index_var);
6051 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6054 mono_mb_emit_ldloc (mb, src_ptr);
6055 mono_mb_emit_byte (mb, CEE_LDIND_I);
6057 mono_mb_emit_icall (mb, conv_to_icall (conv));
6061 mono_mb_emit_ldloc (mb, src_ptr);
6062 mono_mb_emit_byte (mb, CEE_LDIND_I);
6064 mono_mb_emit_icall (mb, mono_marshal_free);
6067 else if (eklass == mono_defaults.string_class) {
6070 mono_mb_emit_ldloc (mb, src_ptr);
6071 mono_mb_emit_byte (mb, CEE_LDIND_I);
6073 mono_mb_emit_icall (mb, mono_marshal_free);
6078 /* set the src_ptr */
6079 mono_mb_emit_ldloc (mb, src_ptr);
6080 mono_mb_emit_stloc (mb, 0);
6083 mono_mb_emit_ldarg (mb, argnum);
6085 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6086 mono_mb_emit_ldloc (mb, index_var);
6087 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6088 mono_mb_emit_stloc (mb, 1);
6090 /* emit valuetype conversion code */
6091 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6095 mono_mb_emit_ldloc (mb, src_ptr);
6096 mono_mb_emit_stloc (mb, loc);
6097 mono_mb_emit_ldloc (mb, loc);
6099 emit_struct_free (mb, eklass, loc);
6103 mono_mb_emit_add_to_local (mb, index_var, 1);
6104 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6106 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6108 mono_mb_patch_branch (mb, label1);
6109 mono_mb_patch_branch (mb, label3);
6112 if (klass->element_class->blittable) {
6113 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6115 mono_mb_emit_ldarg (mb, argnum);
6117 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6118 mono_mb_emit_ldloc (mb, conv_arg);
6119 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6124 case MARSHAL_ACTION_PUSH:
6126 mono_mb_emit_ldloc_addr (mb, conv_arg);
6128 mono_mb_emit_ldloc (mb, conv_arg);
6131 case MARSHAL_ACTION_CONV_RESULT:
6132 /* fixme: we need conversions here */
6133 mono_mb_emit_stloc (mb, 3);
6136 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6138 guint32 label1, label2, label3;
6139 int index_var, src_ptr, esize, param_num, num_elem;
6140 MonoMarshalConv conv;
6141 gboolean is_string = FALSE;
6143 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6144 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6147 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6152 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6153 mono_mb_emit_exception_marshal_directive (mb, msg);
6156 if (spec->native != MONO_NATIVE_LPARRAY) {
6157 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6158 mono_mb_emit_exception_marshal_directive (mb, msg);
6162 /* FIXME: t is from the method which is wrapped, not the delegate type */
6163 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6165 param_num = spec->data.array_data.param_num;
6166 num_elem = spec->data.array_data.num_elem;
6167 if (spec->data.array_data.elem_mult == 0)
6168 /* param_num is not specified */
6171 if (param_num == -1) {
6172 if (num_elem <= 0) {
6173 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6174 mono_mb_emit_exception_marshal_directive (mb, msg);
6179 /* FIXME: Optimize blittable case */
6181 eklass = klass->element_class;
6182 if (eklass == mono_defaults.string_class) {
6184 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6186 else if (eklass == mono_defaults.stringbuilder_class) {
6188 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6193 mono_marshal_load_type_info (eklass);
6196 esize = sizeof (gpointer);
6198 esize = mono_class_native_size (eklass, NULL);
6199 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6201 mono_mb_emit_byte (mb, CEE_LDNULL);
6202 mono_mb_emit_stloc (mb, conv_arg);
6204 /* Check param index */
6205 if (param_num != -1) {
6206 if (param_num >= m->sig->param_count) {
6207 char *msg = g_strdup ("Array size control parameter index is out of range.");
6208 mono_mb_emit_exception_marshal_directive (mb, msg);
6211 switch (m->sig->params [param_num]->type) {
6224 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6225 mono_mb_emit_exception_marshal_directive (mb, msg);
6232 mono_mb_emit_ldarg (mb, argnum);
6233 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6235 mono_mb_emit_ldarg (mb, argnum);
6236 mono_mb_emit_stloc (mb, src_ptr);
6238 /* Create managed array */
6240 * The LPArray marshalling spec says that sometimes param_num starts
6241 * from 1, sometimes it starts from 0. But MS seems to allways start
6245 if (param_num == -1) {
6246 mono_mb_emit_icon (mb, num_elem);
6248 mono_mb_emit_ldarg (mb, param_num);
6250 mono_mb_emit_icon (mb, num_elem);
6251 mono_mb_emit_byte (mb, CEE_ADD);
6253 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6256 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6257 mono_mb_emit_stloc (mb, conv_arg);
6259 if (eklass->blittable) {
6260 mono_mb_emit_ldloc (mb, conv_arg);
6261 mono_mb_emit_byte (mb, CEE_CONV_I);
6262 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6263 mono_mb_emit_byte (mb, CEE_ADD);
6264 mono_mb_emit_ldarg (mb, argnum);
6265 mono_mb_emit_ldloc (mb, conv_arg);
6266 mono_mb_emit_byte (mb, CEE_LDLEN);
6267 mono_mb_emit_icon (mb, esize);
6268 mono_mb_emit_byte (mb, CEE_MUL);
6269 mono_mb_emit_byte (mb, CEE_PREFIX1);
6270 mono_mb_emit_byte (mb, CEE_CPBLK);
6274 /* Emit marshalling loop */
6275 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6276 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6277 mono_mb_emit_stloc (mb, index_var);
6278 label2 = mono_mb_get_label (mb);
6279 mono_mb_emit_ldloc (mb, index_var);
6280 mono_mb_emit_ldloc (mb, conv_arg);
6281 mono_mb_emit_byte (mb, CEE_LDLEN);
6282 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6284 /* Emit marshalling code */
6286 g_assert (conv != -1);
6288 mono_mb_emit_ldloc (mb, conv_arg);
6289 mono_mb_emit_ldloc (mb, index_var);
6291 mono_mb_emit_ldloc (mb, src_ptr);
6292 mono_mb_emit_byte (mb, CEE_LDIND_I);
6294 mono_mb_emit_icall (mb, conv_to_icall (conv));
6295 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6298 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6299 mono_mb_emit_exception_marshal_directive (mb, msg);
6303 mono_mb_emit_add_to_local (mb, index_var, 1);
6304 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6306 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6308 mono_mb_patch_branch (mb, label1);
6309 mono_mb_patch_branch (mb, label3);
6313 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6315 guint32 label1, label2, label3;
6316 int index_var, dest_ptr, esize, param_num, num_elem;
6317 MonoMarshalConv conv;
6318 gboolean is_string = FALSE;
6321 /* Already handled in CONV_IN */
6324 /* These are already checked in CONV_IN */
6325 g_assert (!t->byref);
6326 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6327 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6329 param_num = spec->data.array_data.param_num;
6330 num_elem = spec->data.array_data.num_elem;
6332 if (spec->data.array_data.elem_mult == 0)
6333 /* param_num is not specified */
6336 if (param_num == -1) {
6337 if (num_elem <= 0) {
6338 g_assert_not_reached ();
6342 /* FIXME: Optimize blittable case */
6344 eklass = klass->element_class;
6345 if (eklass == mono_defaults.string_class) {
6347 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6349 else if (eklass == mono_defaults.stringbuilder_class) {
6351 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6356 mono_marshal_load_type_info (eklass);
6359 esize = sizeof (gpointer);
6361 esize = mono_class_native_size (eklass, NULL);
6363 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6366 mono_mb_emit_ldloc (mb, conv_arg);
6367 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6369 mono_mb_emit_ldarg (mb, argnum);
6370 mono_mb_emit_stloc (mb, dest_ptr);
6372 if (eklass->blittable) {
6374 mono_mb_emit_ldarg (mb, argnum);
6376 mono_mb_emit_ldloc (mb, conv_arg);
6377 mono_mb_emit_byte (mb, CEE_CONV_I);
6378 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6379 mono_mb_emit_byte (mb, CEE_ADD);
6381 mono_mb_emit_ldloc (mb, conv_arg);
6382 mono_mb_emit_byte (mb, CEE_LDLEN);
6383 mono_mb_emit_icon (mb, esize);
6384 mono_mb_emit_byte (mb, CEE_MUL);
6385 mono_mb_emit_byte (mb, CEE_PREFIX1);
6386 mono_mb_emit_byte (mb, CEE_CPBLK);
6390 /* Emit marshalling loop */
6391 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6392 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6393 mono_mb_emit_stloc (mb, index_var);
6394 label2 = mono_mb_get_label (mb);
6395 mono_mb_emit_ldloc (mb, index_var);
6396 mono_mb_emit_ldloc (mb, conv_arg);
6397 mono_mb_emit_byte (mb, CEE_LDLEN);
6398 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6400 /* Emit marshalling code */
6402 g_assert (conv != -1);
6405 mono_mb_emit_ldloc (mb, dest_ptr);
6408 mono_mb_emit_ldloc (mb, conv_arg);
6409 mono_mb_emit_ldloc (mb, index_var);
6411 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6413 mono_mb_emit_icall (mb, conv_to_icall (conv));
6414 mono_mb_emit_byte (mb, CEE_STIND_I);
6417 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6418 mono_mb_emit_exception_marshal_directive (mb, msg);
6422 mono_mb_emit_add_to_local (mb, index_var, 1);
6423 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6425 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6427 mono_mb_patch_branch (mb, label1);
6428 mono_mb_patch_branch (mb, label3);
6432 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6434 guint32 label1, label2, label3;
6435 int index_var, src, dest, esize;
6436 MonoMarshalConv conv = -1;
6437 gboolean is_string = FALSE;
6439 g_assert (!t->byref);
6441 eklass = klass->element_class;
6443 mono_marshal_load_type_info (eklass);
6445 if (eklass == mono_defaults.string_class) {
6447 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6450 g_assert_not_reached ();
6454 esize = sizeof (gpointer);
6455 else if (eklass == mono_defaults.char_class)
6456 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6458 esize = mono_class_native_size (eklass, NULL);
6460 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6461 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6463 mono_mb_emit_stloc (mb, src);
6464 mono_mb_emit_ldloc (mb, src);
6465 mono_mb_emit_stloc (mb, 3);
6467 /* Check for null */
6468 mono_mb_emit_ldloc (mb, src);
6469 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6471 /* Allocate native array */
6472 mono_mb_emit_icon (mb, esize);
6473 mono_mb_emit_ldloc (mb, src);
6474 mono_mb_emit_byte (mb, CEE_LDLEN);
6476 if (eklass == mono_defaults.string_class) {
6477 /* Make the array bigger for the terminating null */
6478 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6479 mono_mb_emit_byte (mb, CEE_ADD);
6481 mono_mb_emit_byte (mb, CEE_MUL);
6482 mono_mb_emit_icall (mb, mono_marshal_alloc);
6483 mono_mb_emit_stloc (mb, dest);
6484 mono_mb_emit_ldloc (mb, dest);
6485 mono_mb_emit_stloc (mb, 3);
6487 /* Emit marshalling loop */
6488 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6489 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6490 mono_mb_emit_stloc (mb, index_var);
6491 label2 = mono_mb_get_label (mb);
6492 mono_mb_emit_ldloc (mb, index_var);
6493 mono_mb_emit_ldloc (mb, src);
6494 mono_mb_emit_byte (mb, CEE_LDLEN);
6495 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6497 /* Emit marshalling code */
6499 g_assert (conv != -1);
6502 mono_mb_emit_ldloc (mb, dest);
6505 mono_mb_emit_ldloc (mb, src);
6506 mono_mb_emit_ldloc (mb, index_var);
6508 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6510 mono_mb_emit_icall (mb, conv_to_icall (conv));
6511 mono_mb_emit_byte (mb, CEE_STIND_I);
6514 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6515 mono_mb_emit_exception_marshal_directive (mb, msg);
6519 mono_mb_emit_add_to_local (mb, index_var, 1);
6520 mono_mb_emit_add_to_local (mb, dest, esize);
6522 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6524 mono_mb_patch_branch (mb, label3);
6525 mono_mb_patch_branch (mb, label1);
6529 g_assert_not_reached ();
6536 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6539 return &mono_defaults.int32_class->byval_arg;
6541 switch (spec->native) {
6542 case MONO_NATIVE_I1:
6543 case MONO_NATIVE_U1:
6544 return &mono_defaults.byte_class->byval_arg;
6545 case MONO_NATIVE_VARIANTBOOL:
6546 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6547 return &mono_defaults.int16_class->byval_arg;
6548 case MONO_NATIVE_BOOLEAN:
6549 return &mono_defaults.int32_class->byval_arg;
6551 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6552 return &mono_defaults.int32_class->byval_arg;
6558 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6560 MonoClass* conv_arg_class = mono_defaults.int32_class;
6562 switch (spec->native) {
6563 case MONO_NATIVE_I1:
6564 case MONO_NATIVE_U1:
6565 conv_arg_class = mono_defaults.byte_class;
6566 if (ldop) *ldop = CEE_LDIND_I1;
6568 case MONO_NATIVE_VARIANTBOOL:
6569 conv_arg_class = mono_defaults.int16_class;
6570 if (ldop) *ldop = CEE_LDIND_I2;
6572 case MONO_NATIVE_BOOLEAN:
6575 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6578 return conv_arg_class;
6582 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6583 MonoMarshalSpec *spec,
6584 int conv_arg, MonoType **conv_arg_type,
6585 MarshalAction action)
6589 case MARSHAL_ACTION_CONV_IN:
6591 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6593 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6596 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6597 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6599 *conv_arg_type = &conv_arg_class->this_arg;
6601 *conv_arg_type = &conv_arg_class->byval_arg;
6607 MonoMethodBuilder *mb = m->mb;
6610 case MARSHAL_ACTION_CONV_IN: {
6611 MonoType *local_type;
6613 guint8 ldc_op = CEE_LDC_I4_1;
6615 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6617 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6619 *conv_arg_type = local_type;
6620 conv_arg = mono_mb_add_local (mb, local_type);
6622 mono_mb_emit_ldarg (mb, argnum);
6624 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6625 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6626 mono_mb_emit_byte (mb, ldc_op);
6627 mono_mb_emit_stloc (mb, conv_arg);
6628 mono_mb_patch_branch (mb, label_false);
6633 case MARSHAL_ACTION_CONV_OUT:
6635 int label_false, label_end;
6639 mono_mb_emit_ldarg (mb, argnum);
6640 mono_mb_emit_ldloc (mb, conv_arg);
6642 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6643 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6645 label_end = mono_mb_emit_branch (mb, CEE_BR);
6646 mono_mb_patch_branch (mb, label_false);
6647 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6648 mono_mb_patch_branch (mb, label_end);
6650 mono_mb_emit_byte (mb, CEE_STIND_I1);
6654 case MARSHAL_ACTION_PUSH:
6656 mono_mb_emit_ldloc_addr (mb, conv_arg);
6658 mono_mb_emit_ldloc (mb, conv_arg);
6660 mono_mb_emit_ldarg (mb, argnum);
6663 case MARSHAL_ACTION_CONV_RESULT:
6664 /* maybe we need to make sure that it fits within 8 bits */
6665 mono_mb_emit_stloc (mb, 3);
6668 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6669 MonoClass* conv_arg_class = mono_defaults.int32_class;
6670 guint8 ldop = CEE_LDIND_I4;
6671 int label_null, label_false;
6673 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6674 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6677 *conv_arg_type = &conv_arg_class->this_arg;
6679 *conv_arg_type = &conv_arg_class->byval_arg;
6682 mono_mb_emit_ldarg (mb, argnum);
6686 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6687 mono_mb_emit_ldarg (mb, argnum);
6688 mono_mb_emit_byte (mb, ldop);
6692 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6693 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6694 mono_mb_emit_stloc (mb, conv_arg);
6695 mono_mb_patch_branch (mb, label_false);
6698 mono_mb_patch_branch (mb, label_null);
6702 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6703 guint8 stop = CEE_STIND_I4;
6704 guint8 ldc_op = CEE_LDC_I4_1;
6705 int label_null,label_false, label_end;;
6710 switch (spec->native) {
6711 case MONO_NATIVE_I1:
6712 case MONO_NATIVE_U1:
6713 stop = CEE_STIND_I1;
6715 case MONO_NATIVE_VARIANTBOOL:
6716 stop = CEE_STIND_I2;
6717 ldc_op = CEE_LDC_I4_M1;
6725 mono_mb_emit_ldarg (mb, argnum);
6726 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6728 mono_mb_emit_ldarg (mb, argnum);
6729 mono_mb_emit_ldloc (mb, conv_arg);
6731 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6732 mono_mb_emit_byte (mb, ldc_op);
6733 label_end = mono_mb_emit_branch (mb, CEE_BR);
6735 mono_mb_patch_branch (mb, label_false);
6736 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6737 mono_mb_patch_branch (mb, label_end);
6739 mono_mb_emit_byte (mb, stop);
6740 mono_mb_patch_branch (mb, label_null);
6745 g_assert_not_reached ();
6752 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6753 MonoMarshalSpec *spec, int conv_arg,
6754 MonoType **conv_arg_type, MarshalAction action)
6757 MonoMethodBuilder *mb = m->mb;
6760 case MARSHAL_ACTION_CONV_IN:
6761 /* MS seems to allow this in some cases, ie. bxc #158 */
6763 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6764 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6765 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6770 case MARSHAL_ACTION_PUSH:
6771 mono_mb_emit_ldarg (mb, argnum);
6774 case MARSHAL_ACTION_CONV_RESULT:
6775 /* no conversions necessary */
6776 mono_mb_emit_stloc (mb, 3);
6787 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6788 MonoMarshalSpec *spec, int conv_arg,
6789 MonoType **conv_arg_type, MarshalAction action)
6792 MonoMethodBuilder *mb = m->mb;
6795 case MARSHAL_ACTION_PUSH:
6796 /* fixme: dont know how to marshal that. We cant simply
6797 * convert it to a one byte UTF8 character, because an
6798 * unicode character may need more that one byte in UTF8 */
6799 mono_mb_emit_ldarg (mb, argnum);
6802 case MARSHAL_ACTION_CONV_RESULT:
6803 /* fixme: we need conversions here */
6804 mono_mb_emit_stloc (mb, 3);
6815 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6816 MonoMarshalSpec *spec, int conv_arg,
6817 MonoType **conv_arg_type, MarshalAction action)
6820 MonoMethodBuilder *mb = m->mb;
6823 case MARSHAL_ACTION_PUSH:
6824 mono_mb_emit_ldarg (mb, argnum);
6827 case MARSHAL_ACTION_CONV_RESULT:
6828 /* no conversions necessary */
6829 mono_mb_emit_stloc (mb, 3);
6840 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6841 MonoMarshalSpec *spec, int conv_arg,
6842 MonoType **conv_arg_type, MarshalAction action)
6844 /* Ensure that we have marshalling info for this param */
6845 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6847 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6848 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6850 if (spec && spec->native == MONO_NATIVE_ASANY)
6851 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6854 case MONO_TYPE_VALUETYPE:
6855 if (t->data.klass == mono_defaults.handleref_class)
6856 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6858 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6859 case MONO_TYPE_STRING:
6860 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6861 case MONO_TYPE_CLASS:
6862 case MONO_TYPE_OBJECT:
6864 if (spec && spec->native == MONO_NATIVE_STRUCT)
6865 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6867 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6868 spec->native == MONO_NATIVE_IDISPATCH ||
6869 spec->native == MONO_NATIVE_INTERFACE))
6870 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6871 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6872 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6873 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6874 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6877 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6878 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6879 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6881 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6882 case MONO_TYPE_ARRAY:
6883 case MONO_TYPE_SZARRAY:
6884 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6885 case MONO_TYPE_BOOLEAN:
6886 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6888 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6889 case MONO_TYPE_CHAR:
6890 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6903 case MONO_TYPE_FNPTR:
6904 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6905 case MONO_TYPE_GENERICINST:
6906 if (mono_type_generic_inst_is_valuetype (t))
6907 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6909 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6917 * mono_marshal_emit_native_wrapper:
6918 * @image: the image to use for looking up custom marshallers
6919 * @sig: The signature of the native function
6920 * @piinfo: Marshalling information
6921 * @mspecs: Marshalling information
6922 * @aot: whenever the created method will be compiled by the AOT compiler
6923 * @method: if non-NULL, the pinvoke method to call
6924 * @check_exceptions: Whenever to check for pending exceptions after the native call
6925 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6927 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6930 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)
6932 EmitMarshalContext m;
6933 MonoMethodSignature *csig;
6935 int i, argnum, *tmp_locals;
6936 int type, param_shift = 0;
6937 static MonoMethodSignature *get_last_error_sig = NULL;
6939 memset (&m, 0, sizeof (m));
6944 /* we copy the signature, so that we can set pinvoke to 0 */
6946 /* The function address is passed as the first argument */
6947 g_assert (!sig->hasthis);
6950 csig = signature_dup (mb->method->klass->image, sig);
6958 /* we allocate local for use with emit_struct_conv() */
6959 /* allocate local 0 (pointer) src_ptr */
6960 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6961 /* allocate local 1 (pointer) dst_ptr */
6962 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6963 /* allocate local 2 (boolean) delete_old */
6964 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6966 /* delete_old = FALSE */
6967 mono_mb_emit_icon (mb, 0);
6968 mono_mb_emit_stloc (mb, 2);
6970 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6971 /* allocate local 3 to store the return value */
6972 mono_mb_add_local (mb, sig->ret);
6975 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6976 /* Return type custom marshaling */
6978 * Since we can't determine the return type of the unmanaged function,
6979 * we assume it returns a pointer, and pass that pointer to
6980 * MarshalNativeToManaged.
6982 csig->ret = &mono_defaults.int_class->byval_arg;
6985 /* we first do all conversions */
6986 tmp_locals = alloca (sizeof (int) * sig->param_count);
6987 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6989 for (i = 0; i < sig->param_count; i ++) {
6990 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6993 /* push all arguments */
6996 mono_mb_emit_byte (mb, CEE_LDARG_0);
6998 for (i = 0; i < sig->param_count; i++) {
6999 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7002 /* call the native method */
7004 mono_mb_emit_byte (mb, CEE_LDARG_0);
7005 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7006 mono_mb_emit_byte (mb, CEE_LDIND_I);
7007 mono_mb_emit_calli (mb, csig);
7008 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7010 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7012 g_assert_not_reached ();
7017 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7018 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7019 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7020 mono_mb_emit_calli (mb, csig);
7022 mono_mb_emit_native_call (mb, csig, func);
7026 /* Set LastError if needed */
7027 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7028 if (!get_last_error_sig) {
7029 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7030 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7031 get_last_error_sig->pinvoke = 1;
7036 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7037 * clobber its value.
7039 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7040 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7042 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7046 /* convert the result */
7047 if (!sig->ret->byref) {
7048 MonoMarshalSpec *spec = mspecs [0];
7049 type = sig->ret->type;
7051 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7052 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7057 case MONO_TYPE_VOID:
7059 case MONO_TYPE_VALUETYPE:
7060 klass = sig->ret->data.klass;
7061 if (klass->enumtype) {
7062 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7065 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7079 case MONO_TYPE_FNPTR:
7080 case MONO_TYPE_STRING:
7081 case MONO_TYPE_CLASS:
7082 case MONO_TYPE_OBJECT:
7083 case MONO_TYPE_BOOLEAN:
7084 case MONO_TYPE_ARRAY:
7085 case MONO_TYPE_SZARRAY:
7086 case MONO_TYPE_CHAR:
7088 case MONO_TYPE_GENERICINST:
7089 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7091 case MONO_TYPE_TYPEDBYREF:
7093 g_warning ("return type 0x%02x unknown", sig->ret->type);
7094 g_assert_not_reached ();
7098 mono_mb_emit_stloc (mb, 3);
7102 * Need to call this after converting the result since MONO_VTADDR needs
7103 * to be adjacent to the call instruction.
7105 if (check_exceptions)
7106 emit_thread_interrupt_checkpoint (mb);
7108 /* we need to convert byref arguments back and free string arrays */
7109 for (i = 0; i < sig->param_count; i++) {
7110 MonoType *t = sig->params [i];
7111 MonoMarshalSpec *spec = mspecs [i + 1];
7113 argnum = i + param_shift;
7115 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7116 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7121 case MONO_TYPE_STRING:
7122 case MONO_TYPE_VALUETYPE:
7123 case MONO_TYPE_CLASS:
7124 case MONO_TYPE_OBJECT:
7125 case MONO_TYPE_SZARRAY:
7126 case MONO_TYPE_BOOLEAN:
7127 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7134 if (!MONO_TYPE_IS_VOID(sig->ret))
7135 mono_mb_emit_ldloc (mb, 3);
7137 mono_mb_emit_byte (mb, CEE_RET);
7139 #endif /* DISABLE_JIT */
7142 G_GNUC_UNUSED static void
7143 code_for (MonoMethod *method) {
7144 MonoMethodHeader *header = mono_method_get_header (method);
7145 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));
7149 * mono_marshal_get_native_wrapper:
7150 * @method: The MonoMethod to wrap.
7151 * @check_exceptions: Whenever to check for pending exceptions
7153 * generates IL code for the pinvoke wrapper (the generated method
7154 * calls the unmanaged code in piinfo->addr)
7155 * The wrapper info for the wrapper is a WrapperInfo structure.
7158 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7160 MonoMethodSignature *sig, *csig;
7161 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7162 MonoMethodBuilder *mb;
7163 MonoMarshalSpec **mspecs;
7166 gboolean pinvoke = FALSE;
7169 const char *exc_class = "MissingMethodException";
7170 const char *exc_arg = NULL;
7173 g_assert (method != NULL);
7174 g_assert (mono_method_signature (method)->pinvoke);
7177 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7179 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7180 if ((res = mono_marshal_find_in_cache (cache, method)))
7183 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7184 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7188 return mono_cominterop_get_native_wrapper (method);
7190 g_assert_not_reached ();
7194 sig = mono_method_signature (method);
7196 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7197 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7200 if (!piinfo->addr) {
7202 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7203 exc_arg = "Method contains unsupported native code";
7205 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7207 piinfo->addr = mono_lookup_internal_call (method);
7211 /* hack - redirect certain string constructors to CreateString */
7212 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7213 g_assert (!pinvoke);
7214 g_assert (method->string_ctor);
7215 g_assert (sig->hasthis);
7217 /* CreateString returns a value */
7218 csig = signature_dup (method->klass->image, sig);
7219 csig->ret = &mono_defaults.string_class->byval_arg;
7223 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7224 if (!strcmp ("CreateString", res->name) &&
7225 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7228 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7229 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7231 /* create a wrapper to preserve .ctor in stack trace */
7232 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7235 mono_mb_emit_byte (mb, CEE_LDARG_0);
7236 for (i = 1; i <= csig->param_count; i++)
7237 mono_mb_emit_ldarg (mb, i);
7238 mono_mb_emit_managed_call (mb, res, NULL);
7239 mono_mb_emit_byte (mb, CEE_RET);
7242 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7243 info->d.string_ctor.method = method;
7245 /* use native_wrapper_cache because internal calls are looked up there */
7246 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7247 csig->param_count + 1, info, NULL);
7254 /* exception will be thrown */
7255 piinfo->addr = NULL;
7256 g_warning ("cannot find CreateString for .ctor");
7259 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7261 mb->method->save_lmf = 1;
7264 * In AOT mode and embedding scenarios, it is possible that the icall is not
7265 * registered in the runtime doing the AOT compilation.
7267 if (!piinfo->addr && !aot) {
7269 mono_mb_emit_exception (mb, exc_class, exc_arg);
7271 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7272 info->d.managed_to_native.method = method;
7274 csig = signature_dup (method->klass->image, sig);
7276 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7277 csig->param_count + 16, info, NULL);
7283 /* internal calls: we simply push all arguments and call the method (no conversions) */
7284 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7286 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7288 csig = signature_dup (method->klass->image, sig);
7290 /* hack - string constructors returns a value */
7291 if (method->string_ctor)
7292 csig->ret = &mono_defaults.string_class->byval_arg;
7299 * Add a null check since public icalls can be called with 'call' which
7300 * does no such check.
7302 mono_mb_emit_byte (mb, CEE_LDARG_0);
7303 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7304 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7305 mono_mb_patch_branch (mb, pos);
7307 mono_mb_emit_byte (mb, CEE_LDARG_0);
7310 for (i = 0; i < sig->param_count; i++)
7311 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7314 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7315 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7316 mono_mb_emit_calli (mb, csig);
7318 g_assert (piinfo->addr);
7319 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7321 if (check_exceptions)
7322 emit_thread_interrupt_checkpoint (mb);
7323 mono_mb_emit_byte (mb, CEE_RET);
7325 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7326 info->d.managed_to_native.method = method;
7328 csig = signature_dup (method->klass->image, csig);
7330 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7339 g_assert (piinfo->addr);
7342 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7343 mono_method_get_marshal_info (method, mspecs);
7345 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7347 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7348 info->d.managed_to_native.method = method;
7350 csig = signature_dup (method->klass->image, sig);
7352 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7357 for (i = sig->param_count; i >= 0; i--)
7359 mono_metadata_free_marshal_spec (mspecs [i]);
7363 /* code_for (res); */
7369 * mono_marshal_get_native_func_wrapper:
7370 * @image: The image to use for memory allocation and for looking up custom marshallers.
7371 * @sig: The signature of the function
7372 * @func: The native function to wrap
7374 * Returns a wrapper method around native functions, similar to the pinvoke
7378 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7379 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7381 MonoMethodSignature *csig;
7383 SignaturePointerPair key, *new_key;
7384 MonoMethodBuilder *mb;
7393 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7394 if ((res = mono_marshal_find_in_cache (cache, &key)))
7397 name = g_strdup_printf ("wrapper_native_%p", func);
7398 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7399 mb->method->save_lmf = 1;
7402 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7405 csig = signature_dup (image, sig);
7408 new_key = g_new (SignaturePointerPair,1);
7409 new_key->sig = csig;
7410 new_key->pointer = func;
7412 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7418 mono_marshal_set_wrapper_info (res, NULL);
7424 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7428 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7430 MonoMethodSignature *sig, *csig;
7431 MonoMethodBuilder *mb;
7436 MonoMethodPInvoke mpiinfo;
7437 MonoMethodPInvoke *piinfo = &mpiinfo;
7438 MonoMarshalSpec **mspecs;
7439 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7440 MonoImage *image = invoke->klass->image;
7443 // FIXME: include UnmanagedFunctionPointerAttribute info
7446 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7448 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7449 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7452 memset (&mpiinfo, 0, sizeof (mpiinfo));
7453 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7455 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7456 mono_method_get_marshal_info (invoke, mspecs);
7457 /* Freed below so don't alloc from mempool */
7458 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7461 name = g_strdup_printf ("wrapper_aot_native");
7462 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7463 mb->method->save_lmf = 1;
7466 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7469 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7470 info->d.managed_to_native.method = invoke;
7472 g_assert (!sig->hasthis);
7473 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7475 res = mono_mb_create_and_cache_full (cache, invoke,
7476 mb, csig, csig->param_count + 16,
7480 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7482 mono_metadata_free_marshal_spec (mspecs [i]);
7490 * mono_marshal_emit_managed_wrapper:
7492 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7493 * the delegate which wraps the managed method to be called. For closed delegates,
7494 * it could have fewer parameters than the method it wraps.
7495 * THIS_LOC is the memory location where the target of the delegate is stored.
7498 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7501 MonoMethodSignature *sig, *csig;
7507 /* we first do all conversions */
7508 for (i = 0; i < sig->param_count; i ++) {
7509 MonoType *t = sig->params [i];
7512 case MONO_TYPE_OBJECT:
7513 case MONO_TYPE_CLASS:
7514 case MONO_TYPE_VALUETYPE:
7515 case MONO_TYPE_ARRAY:
7516 case MONO_TYPE_SZARRAY:
7517 case MONO_TYPE_STRING:
7518 case MONO_TYPE_BOOLEAN:
7519 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7523 if (!sig->ret->byref) {
7524 switch (sig->ret->type) {
7525 case MONO_TYPE_STRING:
7526 csig->ret = &mono_defaults.int_class->byval_arg;
7533 MonoMethodSignature *sig, *csig;
7535 gboolean closed = FALSE;
7540 /* allocate local 0 (pointer) src_ptr */
7541 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7542 /* allocate local 1 (pointer) dst_ptr */
7543 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7544 /* allocate local 2 (boolean) delete_old */
7545 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7547 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7548 /* Closed delegate */
7549 g_assert (sig->param_count == invoke_sig->param_count + 1);
7551 /* Use a new signature without the first argument */
7552 sig = mono_metadata_signature_dup (sig);
7553 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7554 sig->param_count --;
7557 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7558 /* allocate local 3 to store the return value */
7559 mono_mb_add_local (mb, sig->ret);
7562 mono_mb_emit_icon (mb, 0);
7563 mono_mb_emit_stloc (mb, 2);
7566 * Might need to attach the thread to the JIT or change the
7567 * domain for the callback.
7569 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7570 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7572 /* we first do all conversions */
7573 tmp_locals = alloca (sizeof (int) * sig->param_count);
7574 for (i = 0; i < sig->param_count; i ++) {
7575 MonoType *t = sig->params [i];
7578 case MONO_TYPE_OBJECT:
7579 case MONO_TYPE_CLASS:
7580 case MONO_TYPE_VALUETYPE:
7581 case MONO_TYPE_ARRAY:
7582 case MONO_TYPE_SZARRAY:
7583 case MONO_TYPE_STRING:
7584 case MONO_TYPE_BOOLEAN:
7585 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7594 emit_thread_interrupt_checkpoint (mb);
7597 if (target_handle) {
7598 mono_mb_emit_icon (mb, (gint32)target_handle);
7599 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7602 g_assert_not_reached ();
7604 } else if (closed) {
7605 mono_mb_emit_icon (mb, (gint32)target_handle);
7606 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7609 for (i = 0; i < sig->param_count; i++) {
7610 MonoType *t = sig->params [i];
7612 if (tmp_locals [i]) {
7614 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7616 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7619 mono_mb_emit_ldarg (mb, i);
7622 mono_mb_emit_managed_call (mb, method, NULL);
7624 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7625 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7626 } else if (!sig->ret->byref) {
7627 switch (sig->ret->type) {
7628 case MONO_TYPE_VOID:
7630 case MONO_TYPE_BOOLEAN:
7633 case MONO_TYPE_CHAR:
7645 case MONO_TYPE_OBJECT:
7646 mono_mb_emit_stloc (mb, 3);
7648 case MONO_TYPE_STRING:
7649 csig->ret = &mono_defaults.int_class->byval_arg;
7650 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7652 case MONO_TYPE_VALUETYPE:
7653 case MONO_TYPE_CLASS:
7654 case MONO_TYPE_SZARRAY:
7655 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7658 g_warning ("return type 0x%02x unknown", sig->ret->type);
7659 g_assert_not_reached ();
7662 mono_mb_emit_stloc (mb, 3);
7665 /* Convert byref arguments back */
7666 for (i = 0; i < sig->param_count; i ++) {
7667 MonoType *t = sig->params [i];
7668 MonoMarshalSpec *spec = mspecs [i + 1];
7670 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7671 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7673 else if (t->byref) {
7675 case MONO_TYPE_CLASS:
7676 case MONO_TYPE_VALUETYPE:
7677 case MONO_TYPE_OBJECT:
7678 case MONO_TYPE_STRING:
7679 case MONO_TYPE_BOOLEAN:
7680 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7686 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7687 /* The [Out] information is encoded in the delegate signature */
7689 case MONO_TYPE_SZARRAY:
7690 case MONO_TYPE_CLASS:
7691 case MONO_TYPE_VALUETYPE:
7692 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7695 g_assert_not_reached ();
7700 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7701 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7703 if (m->retobj_var) {
7704 mono_mb_emit_ldloc (mb, m->retobj_var);
7705 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7706 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7709 if (!MONO_TYPE_IS_VOID(sig->ret))
7710 mono_mb_emit_ldloc (mb, 3);
7711 mono_mb_emit_byte (mb, CEE_RET);
7720 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7722 MonoMethodSignature *sig;
7727 * Under windows, delegates passed to native code must use the STDCALL
7728 * calling convention.
7730 csig->call_convention = MONO_CALL_STDCALL;
7733 sig = mono_method_signature (method);
7735 /* Change default calling convention if needed */
7736 /* Why is this a modopt ? */
7737 if (sig->ret && sig->ret->num_mods) {
7738 for (i = 0; i < sig->ret->num_mods; ++i) {
7740 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7741 g_assert (mono_error_ok (&error));
7742 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7743 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7744 csig->call_convention = MONO_CALL_C;
7745 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7746 csig->call_convention = MONO_CALL_STDCALL;
7747 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7748 csig->call_convention = MONO_CALL_FASTCALL;
7749 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7750 csig->call_convention = MONO_CALL_THISCALL;
7757 * generates IL code to call managed methods from unmanaged code
7758 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7761 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7763 static MonoClass *UnmanagedFunctionPointerAttribute;
7764 MonoMethodSignature *sig, *csig, *invoke_sig;
7765 MonoMethodBuilder *mb;
7766 MonoMethod *res, *invoke;
7767 MonoMarshalSpec **mspecs;
7768 MonoMethodPInvoke piinfo;
7771 EmitMarshalContext m;
7773 g_assert (method != NULL);
7774 g_assert (!mono_method_signature (method)->pinvoke);
7777 * FIXME: Should cache the method+delegate type pair, since the same method
7778 * could be called with different delegates, thus different marshalling
7781 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7782 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7785 invoke = mono_get_delegate_invoke (delegate_klass);
7786 invoke_sig = mono_method_signature (invoke);
7788 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7789 mono_method_get_marshal_info (invoke, mspecs);
7791 sig = mono_method_signature (method);
7793 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7795 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7796 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7798 /* we copy the signature, so that we can modify it */
7800 /* Need to free this later */
7801 csig = mono_metadata_signature_dup (invoke_sig);
7803 csig = signature_dup (method->klass->image, invoke_sig);
7807 memset (&m, 0, sizeof (m));
7813 m.image = method->klass->image;
7815 mono_marshal_set_callconv_from_modopt (invoke, csig);
7817 /* Handle the UnmanagedFunctionPointerAttribute */
7818 if (!UnmanagedFunctionPointerAttribute)
7819 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7821 /* The attribute is only available in Net 2.0 */
7822 if (UnmanagedFunctionPointerAttribute) {
7823 MonoCustomAttrInfo *cinfo;
7824 MonoCustomAttrEntry *attr;
7827 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7828 * contents of the attribute without constructing it, as that might not be
7829 * possible when running in cross-compiling mode.
7831 cinfo = mono_custom_attrs_from_class (delegate_klass);
7834 for (i = 0; i < cinfo->num_attrs; ++i) {
7835 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7836 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7837 attr = &cinfo->attrs [i];
7843 MonoArray *typed_args, *named_args;
7844 CattrNamedArg *arginfo;
7848 MonoBoolean set_last_error = 0;
7851 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7852 g_assert (mono_error_ok (&error));
7853 g_assert (mono_array_length (typed_args) == 1);
7856 o = mono_array_get (typed_args, MonoObject*, 0);
7857 call_conv = *(gint32*)mono_object_unbox (o);
7860 for (i = 0; i < mono_array_length (named_args); ++i) {
7861 CattrNamedArg *narg = &arginfo [i];
7863 o = mono_array_get (named_args, MonoObject*, i);
7865 g_assert (narg->field);
7866 if (!strcmp (narg->field->name, "CharSet")) {
7867 charset = *(gint32*)mono_object_unbox (o);
7868 } else if (!strcmp (narg->field->name, "SetLastError")) {
7869 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7870 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7871 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7872 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7873 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7875 g_assert_not_reached ();
7881 memset (&piinfo, 0, sizeof (piinfo));
7883 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7885 csig->call_convention = call_conv - 1;
7888 if (cinfo && !cinfo->cached)
7889 mono_custom_attrs_free (cinfo);
7892 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7894 if (!target_handle) {
7897 // FIXME: Associate it with the method+delegate_klass pair
7898 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7899 info->d.native_to_managed.method = method;
7900 info->d.native_to_managed.klass = delegate_klass;
7902 res = mono_mb_create_and_cache_full (cache, method,
7903 mb, csig, sig->param_count + 16,
7909 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7913 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7915 mono_metadata_free_marshal_spec (mspecs [i]);
7918 /* code_for (res); */
7924 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7927 MonoMethodSignature *sig;
7928 MonoMethodBuilder *mb;
7933 method = mono_get_method (image, token, NULL);
7936 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7937 MonoMethodSignature *csig;
7938 MonoMarshalSpec **mspecs;
7939 EmitMarshalContext m;
7941 sig = mono_method_signature (method);
7942 g_assert (!sig->hasthis);
7944 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7945 mono_method_get_marshal_info (method, mspecs);
7947 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7948 csig = signature_dup (image, sig);
7952 memset (&m, 0, sizeof (m));
7960 mono_marshal_set_callconv_from_modopt (method, csig);
7962 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7964 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7969 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7972 for (i = sig->param_count; i >= 0; i--)
7974 mono_metadata_free_marshal_spec (mspecs [i]);
7977 return mono_compile_method (method);
7980 sig = mono_method_signature (method);
7981 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7983 param_count = sig->param_count + sig->hasthis;
7985 for (i = 0; i < param_count; i++)
7986 mono_mb_emit_ldarg (mb, i);
7988 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7989 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7991 mono_mb_emit_op (mb, CEE_CALL, method);
7992 mono_mb_emit_byte (mb, CEE_RET);
7997 method = mono_mb_create (mb, sig, param_count, NULL);
8000 return mono_compile_method (method);
8004 * This does the equivalent of mono_object_castclass_with_cache.
8005 * The wrapper info for the wrapper is a WrapperInfo structure.
8008 mono_marshal_get_castclass_with_cache (void)
8010 static MonoMethod *cached;
8012 MonoMethodBuilder *mb;
8013 MonoMethodSignature *sig;
8014 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8020 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8021 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8022 sig->params [0] = &mono_defaults.object_class->byval_arg;
8023 sig->params [1] = &mono_defaults.int_class->byval_arg;
8024 sig->params [2] = &mono_defaults.int_class->byval_arg;
8025 sig->ret = &mono_defaults.object_class->byval_arg;
8029 /* allocate local 0 (pointer) obj_vtable */
8030 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8033 mono_mb_emit_ldarg (mb, 0);
8034 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8036 /*obj_vtable = obj->vtable;*/
8037 mono_mb_emit_ldarg (mb, 0);
8038 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8039 mono_mb_emit_byte (mb, CEE_LDIND_I);
8040 mono_mb_emit_stloc (mb, 0);
8043 mono_mb_emit_ldarg (mb, 2);
8044 mono_mb_emit_byte (mb, CEE_LDIND_I);
8045 mono_mb_emit_ldloc (mb, 0);
8047 /*if (*cache == obj_vtable)*/
8048 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8051 mono_mb_emit_ldarg (mb, 0);
8052 mono_mb_emit_byte (mb, CEE_RET);
8054 mono_mb_patch_branch (mb, cache_miss_pos);
8055 /*if (mono_object_isinst (obj, klass)) */
8056 mono_mb_emit_ldarg (mb, 0);
8057 mono_mb_emit_ldarg (mb, 1);
8058 mono_mb_emit_icall (mb, mono_object_isinst);
8059 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8061 /**cache = obj_vtable;*/
8062 mono_mb_emit_ldarg (mb, 2);
8063 mono_mb_emit_ldloc (mb, 0);
8064 mono_mb_emit_byte (mb, CEE_STIND_I);
8067 mono_mb_emit_ldarg (mb, 0);
8068 mono_mb_emit_byte (mb, CEE_RET);
8071 mono_mb_patch_branch (mb, invalid_cast_pos);
8072 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8075 mono_mb_patch_branch (mb, return_null_pos);
8076 mono_mb_emit_byte (mb, CEE_LDNULL);
8077 mono_mb_emit_byte (mb, CEE_RET);
8078 #endif /* DISABLE_JIT */
8080 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8081 res = mono_mb_create (mb, sig, 8, info);
8084 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8085 mono_free_method (res);
8086 mono_metadata_free_method_signature (sig);
8094 * This does the equivalent of mono_object_isinst_with_cache.
8095 * The wrapper info for the wrapper is a WrapperInfo structure.
8098 mono_marshal_get_isinst_with_cache (void)
8100 static MonoMethod *cached;
8102 MonoMethodBuilder *mb;
8103 MonoMethodSignature *sig;
8104 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8110 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8111 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8112 sig->params [0] = &mono_defaults.object_class->byval_arg;
8113 sig->params [1] = &mono_defaults.int_class->byval_arg;
8114 sig->params [2] = &mono_defaults.int_class->byval_arg;
8115 sig->ret = &mono_defaults.object_class->byval_arg;
8119 /* allocate local 0 (pointer) obj_vtable */
8120 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8121 /* allocate local 1 (pointer) cached_vtable */
8122 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8125 mono_mb_emit_ldarg (mb, 0);
8126 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8128 /*obj_vtable = obj->vtable;*/
8129 mono_mb_emit_ldarg (mb, 0);
8130 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8131 mono_mb_emit_byte (mb, CEE_LDIND_I);
8132 mono_mb_emit_stloc (mb, 0);
8134 /* cached_vtable = *cache*/
8135 mono_mb_emit_ldarg (mb, 2);
8136 mono_mb_emit_byte (mb, CEE_LDIND_I);
8137 mono_mb_emit_stloc (mb, 1);
8139 mono_mb_emit_ldloc (mb, 1);
8140 mono_mb_emit_byte (mb, CEE_LDC_I4);
8141 mono_mb_emit_i4 (mb, ~0x1);
8142 mono_mb_emit_byte (mb, CEE_CONV_I);
8143 mono_mb_emit_byte (mb, CEE_AND);
8144 mono_mb_emit_ldloc (mb, 0);
8145 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8146 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8148 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8149 mono_mb_emit_ldloc (mb, 1);
8150 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8151 mono_mb_emit_byte (mb, CEE_CONV_U);
8152 mono_mb_emit_byte (mb, CEE_AND);
8153 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8156 mono_mb_emit_ldarg (mb, 0);
8157 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8160 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8161 mono_mb_emit_byte (mb, CEE_LDNULL);
8163 mono_mb_patch_branch (mb, cache_hit_pos);
8164 mono_mb_emit_byte (mb, CEE_RET);
8166 mono_mb_patch_branch (mb, cache_miss_pos);
8167 /*if (mono_object_isinst (obj, klass)) */
8168 mono_mb_emit_ldarg (mb, 0);
8169 mono_mb_emit_ldarg (mb, 1);
8170 mono_mb_emit_icall (mb, mono_object_isinst);
8171 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8173 /**cache = obj_vtable;*/
8174 mono_mb_emit_ldarg (mb, 2);
8175 mono_mb_emit_ldloc (mb, 0);
8176 mono_mb_emit_byte (mb, CEE_STIND_I);
8179 mono_mb_emit_ldarg (mb, 0);
8180 mono_mb_emit_byte (mb, CEE_RET);
8183 mono_mb_patch_branch (mb, not_an_instance_pos);
8184 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8185 mono_mb_emit_ldarg (mb, 2);
8186 /*obj_vtable | 0x1*/
8187 mono_mb_emit_ldloc (mb, 0);
8188 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8189 mono_mb_emit_byte (mb, CEE_CONV_U);
8190 mono_mb_emit_byte (mb, CEE_OR);
8193 mono_mb_emit_byte (mb, CEE_STIND_I);
8196 mono_mb_patch_branch (mb, return_null_pos);
8197 mono_mb_emit_byte (mb, CEE_LDNULL);
8198 mono_mb_emit_byte (mb, CEE_RET);
8201 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8202 res = mono_mb_create (mb, sig, 8, info);
8205 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8206 mono_free_method (res);
8207 mono_metadata_free_method_signature (sig);
8215 * mono_marshal_get_isinst:
8216 * @klass: the type of the field
8218 * This method generates a function which can be used to check if an object is
8219 * an instance of the given type, icluding the case where the object is a proxy.
8220 * The generated function has the following signature:
8221 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8224 mono_marshal_get_isinst (MonoClass *klass)
8226 static MonoMethodSignature *isint_sig = NULL;
8230 int pos_was_ok, pos_end;
8231 #ifndef DISABLE_REMOTING
8232 int pos_end2, pos_failed;
8235 MonoMethodBuilder *mb;
8237 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8238 if ((res = mono_marshal_find_in_cache (cache, klass)))
8242 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8243 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8244 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8245 isint_sig->pinvoke = 0;
8248 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8249 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8252 mb->method->save_lmf = 1;
8255 /* check if the object is a proxy that needs special cast */
8256 mono_mb_emit_ldarg (mb, 0);
8257 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8258 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8260 /* The result of MONO_CISINST can be:
8261 0) the type check succeeded
8262 1) the type check did not succeed
8263 2) a CanCastTo call is needed */
8264 #ifndef DISABLE_REMOTING
8265 mono_mb_emit_byte (mb, CEE_DUP);
8266 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8268 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8269 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8271 /* get the real proxy from the transparent proxy*/
8273 mono_mb_emit_ldarg (mb, 0);
8274 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8275 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8279 mono_mb_patch_branch (mb, pos_failed);
8280 mono_mb_emit_byte (mb, CEE_LDNULL);
8281 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8285 mono_mb_patch_branch (mb, pos_was_ok);
8286 mono_mb_emit_byte (mb, CEE_POP);
8287 mono_mb_emit_ldarg (mb, 0);
8291 mono_mb_patch_branch (mb, pos_end);
8292 mono_mb_patch_branch (mb, pos_end2);
8293 mono_mb_emit_byte (mb, CEE_RET);
8295 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8299 mono_mb_emit_byte (mb, CEE_LDNULL);
8300 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8304 mono_mb_patch_branch (mb, pos_was_ok);
8305 mono_mb_emit_ldarg (mb, 0);
8309 mono_mb_patch_branch (mb, pos_end);
8310 mono_mb_emit_byte (mb, CEE_RET);
8311 #endif /* DISABLE_REMOTING */
8312 #endif /* DISABLE_JIT */
8314 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8315 info->d.proxy.klass = klass;
8316 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8323 * mono_marshal_get_castclass:
8324 * @klass: the type of the field
8326 * This method generates a function which can be used to cast an object to
8327 * an instance of the given type, icluding the case where the object is a proxy.
8328 * The generated function has the following signature:
8329 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8330 * The wrapper info for the wrapper is a WrapperInfo structure.
8333 mono_marshal_get_castclass (MonoClass *klass)
8335 static MonoMethodSignature *castclass_sig = NULL;
8338 #ifndef DISABLE_REMOTING
8339 int pos_was_ok, pos_was_ok2;
8342 MonoMethodBuilder *mb;
8345 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8346 if ((res = mono_marshal_find_in_cache (cache, klass)))
8349 if (!castclass_sig) {
8350 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8351 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8352 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8353 castclass_sig->pinvoke = 0;
8356 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8357 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8360 mb->method->save_lmf = 1;
8363 /* check if the object is a proxy that needs special cast */
8364 mono_mb_emit_ldarg (mb, 0);
8365 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8366 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8368 /* The result of MONO_CCASTCLASS can be:
8369 0) the cast is valid
8370 1) cast of unknown proxy type
8371 or an exception if the cast is is invalid
8373 #ifndef DISABLE_REMOTING
8374 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8376 /* get the real proxy from the transparent proxy*/
8378 mono_mb_emit_ldarg (mb, 0);
8379 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8380 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8383 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8386 mono_mb_patch_branch (mb, pos_was_ok);
8387 mono_mb_patch_branch (mb, pos_was_ok2);
8389 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8390 mono_mb_emit_byte (mb, CEE_POP);
8391 #endif /* DISABLE_REMOTING */
8393 mono_mb_emit_ldarg (mb, 0);
8396 mono_mb_emit_byte (mb, CEE_RET);
8397 #endif /* DISABLE_JIT */
8399 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8401 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8409 * mono_marshal_get_struct_to_ptr:
8412 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8413 * The wrapper info for the wrapper is a WrapperInfo structure.
8416 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8418 MonoMethodBuilder *mb;
8419 static MonoMethod *stoptr = NULL;
8423 g_assert (klass != NULL);
8425 mono_marshal_load_type_info (klass);
8427 if (klass->marshal_info->str_to_ptr)
8428 return klass->marshal_info->str_to_ptr;
8431 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8434 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8437 if (klass->blittable) {
8438 mono_mb_emit_byte (mb, CEE_LDARG_1);
8439 mono_mb_emit_byte (mb, CEE_LDARG_0);
8440 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8441 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8442 mono_mb_emit_byte (mb, CEE_PREFIX1);
8443 mono_mb_emit_byte (mb, CEE_CPBLK);
8446 /* allocate local 0 (pointer) src_ptr */
8447 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8448 /* allocate local 1 (pointer) dst_ptr */
8449 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8450 /* allocate local 2 (boolean) delete_old */
8451 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8452 mono_mb_emit_byte (mb, CEE_LDARG_2);
8453 mono_mb_emit_stloc (mb, 2);
8455 /* initialize src_ptr to point to the start of object data */
8456 mono_mb_emit_byte (mb, CEE_LDARG_0);
8457 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8458 mono_mb_emit_stloc (mb, 0);
8460 /* initialize dst_ptr */
8461 mono_mb_emit_byte (mb, CEE_LDARG_1);
8462 mono_mb_emit_stloc (mb, 1);
8464 emit_struct_conv (mb, klass, FALSE);
8467 mono_mb_emit_byte (mb, CEE_RET);
8469 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8470 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8473 klass->marshal_info->str_to_ptr = res;
8478 * mono_marshal_get_ptr_to_struct:
8481 * generates IL code for PtrToStructure (IntPtr src, object structure)
8482 * The wrapper info for the wrapper is a WrapperInfo structure.
8485 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8487 MonoMethodBuilder *mb;
8488 static MonoMethodSignature *ptostr = NULL;
8492 g_assert (klass != NULL);
8494 mono_marshal_load_type_info (klass);
8496 if (klass->marshal_info->ptr_to_str)
8497 return klass->marshal_info->ptr_to_str;
8500 MonoMethodSignature *sig;
8502 /* Create the signature corresponding to
8503 static void PtrToStructure (IntPtr ptr, object structure);
8504 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8505 sig = mono_create_icall_signature ("void ptr object");
8506 sig = signature_dup (mono_defaults.corlib, sig);
8508 mono_memory_barrier ();
8512 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8515 if (klass->blittable) {
8516 mono_mb_emit_byte (mb, CEE_LDARG_1);
8517 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8518 mono_mb_emit_byte (mb, CEE_LDARG_0);
8519 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8520 mono_mb_emit_byte (mb, CEE_PREFIX1);
8521 mono_mb_emit_byte (mb, CEE_CPBLK);
8524 /* allocate local 0 (pointer) src_ptr */
8525 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8526 /* allocate local 1 (pointer) dst_ptr */
8527 mono_mb_add_local (mb, &klass->this_arg);
8529 /* initialize src_ptr to point to the start of object data */
8530 mono_mb_emit_byte (mb, CEE_LDARG_0);
8531 mono_mb_emit_stloc (mb, 0);
8533 /* initialize dst_ptr */
8534 mono_mb_emit_byte (mb, CEE_LDARG_1);
8535 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8536 mono_mb_emit_stloc (mb, 1);
8538 emit_struct_conv (mb, klass, TRUE);
8541 mono_mb_emit_byte (mb, CEE_RET);
8543 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8544 res = mono_mb_create (mb, ptostr, 0, info);
8547 klass->marshal_info->ptr_to_str = res;
8552 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8553 * This is used to avoid infinite recursion since it is hard to determine where to
8554 * replace a method with its synchronized wrapper, and where not.
8555 * The runtime should execute METHOD instead of the wrapper.
8556 * The wrapper info for the wrapper is a WrapperInfo structure.
8559 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8561 MonoMethodBuilder *mb;
8563 MonoMethodSignature *sig;
8565 MonoGenericContext *ctx = NULL;
8566 MonoGenericContainer *container = NULL;
8568 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8569 ctx = &((MonoMethodInflated*)method)->context;
8570 method = ((MonoMethodInflated*)method)->declaring;
8571 container = mono_method_get_generic_container (method);
8573 container = method->klass->generic_container;
8574 g_assert (container);
8577 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8579 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8580 mono_mb_emit_byte (mb, CEE_RET);
8582 sig = signature_dup (method->klass->image, mono_method_signature (method));
8584 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8585 info->d.synchronized_inner.method = method;
8586 res = mono_mb_create (mb, sig, 0, info);
8590 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8591 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8597 * generates IL code for the synchronized wrapper: the generated method
8598 * calls METHOD while locking 'this' or the parent type.
8601 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8603 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8604 MonoMethodSignature *sig;
8605 MonoExceptionClause *clause;
8606 MonoMethodBuilder *mb;
8609 int i, pos, this_local, ret_local = 0;
8610 MonoGenericContext *ctx = NULL;
8611 MonoMethod *orig_method = NULL;
8612 MonoGenericContainer *container = NULL;
8616 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8619 /* FIXME: Support generic methods too */
8620 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8621 orig_method = method;
8622 ctx = &((MonoMethodInflated*)method)->context;
8623 method = ((MonoMethodInflated*)method)->declaring;
8624 container = mono_method_get_generic_container (method);
8626 container = method->klass->generic_container;
8627 g_assert (container);
8634 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8635 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8639 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8640 if ((res = mono_marshal_find_in_cache (cache, method)))
8644 sig = signature_dup (method->klass->image, mono_method_signature (method));
8647 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8651 if (!MONO_TYPE_IS_VOID (sig->ret))
8652 ret_local = mono_mb_add_local (mb, sig->ret);
8655 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8656 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8658 /* This will throw the type load exception when the wrapper is compiled */
8659 mono_mb_emit_byte (mb, CEE_LDNULL);
8660 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8661 mono_mb_emit_byte (mb, CEE_POP);
8663 if (!MONO_TYPE_IS_VOID (sig->ret))
8664 mono_mb_emit_ldloc (mb, ret_local);
8665 mono_mb_emit_byte (mb, CEE_RET);
8668 res = mono_mb_create_and_cache (cache, method,
8669 mb, sig, sig->param_count + 16);
8677 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8679 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8680 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8683 mono_marshal_lock ();
8685 if (!enter_method) {
8686 MonoMethodDesc *desc;
8688 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8689 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8690 g_assert (enter_method);
8691 mono_method_desc_free (desc);
8693 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8694 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8695 g_assert (exit_method);
8696 mono_method_desc_free (desc);
8698 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8699 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8700 g_assert (gettypefromhandle_method);
8701 mono_method_desc_free (desc);
8704 mono_marshal_unlock ();
8707 /* Push this or the type object */
8708 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8709 /* We have special handling for this in the JIT */
8710 int index = mono_mb_add_data (mb, method->klass);
8711 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8712 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8713 mono_mb_emit_i4 (mb, index);
8715 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8718 mono_mb_emit_ldarg (mb, 0);
8719 mono_mb_emit_stloc (mb, this_local);
8721 /* Call Monitor::Enter() */
8722 mono_mb_emit_ldloc (mb, this_local);
8723 mono_mb_emit_managed_call (mb, enter_method, NULL);
8725 clause->try_offset = mono_mb_get_label (mb);
8727 /* Call the method */
8729 mono_mb_emit_ldarg (mb, 0);
8730 for (i = 0; i < sig->param_count; i++)
8731 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8735 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8736 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8738 mono_mb_emit_managed_call (mb, method, NULL);
8741 if (!MONO_TYPE_IS_VOID (sig->ret))
8742 mono_mb_emit_stloc (mb, ret_local);
8744 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8746 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8747 clause->handler_offset = mono_mb_get_label (mb);
8749 /* Call Monitor::Exit() */
8750 mono_mb_emit_ldloc (mb, this_local);
8751 mono_mb_emit_managed_call (mb, exit_method, NULL);
8752 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8754 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8756 mono_mb_patch_branch (mb, pos);
8757 if (!MONO_TYPE_IS_VOID (sig->ret))
8758 mono_mb_emit_ldloc (mb, ret_local);
8759 mono_mb_emit_byte (mb, CEE_RET);
8761 mono_mb_set_clauses (mb, 1, clause);
8766 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8767 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8769 res = mono_mb_create_and_cache (cache, method,
8770 mb, sig, sig->param_count + 16);
8779 * the returned method calls 'method' unboxing the this argument
8782 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8784 MonoMethodSignature *sig = mono_method_signature (method);
8786 MonoMethodBuilder *mb;
8790 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8791 if ((res = mono_marshal_find_in_cache (cache, method)))
8794 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8796 g_assert (sig->hasthis);
8799 mono_mb_emit_ldarg (mb, 0);
8800 mono_mb_emit_icon (mb, sizeof (MonoObject));
8801 mono_mb_emit_byte (mb, CEE_ADD);
8802 for (i = 0; i < sig->param_count; ++i)
8803 mono_mb_emit_ldarg (mb, i + 1);
8804 mono_mb_emit_managed_call (mb, method, NULL);
8805 mono_mb_emit_byte (mb, CEE_RET);
8808 res = mono_mb_create_and_cache (cache, method,
8809 mb, sig, sig->param_count + 16);
8812 /* code_for (res); */
8818 STELEMREF_OBJECT, /*no check at all*/
8819 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8820 STELEMREF_CLASS, /*only the klass->parents check*/
8821 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8822 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8823 STELEMREF_KIND_COUNT
8826 static const char *strelemref_wrapper_name[] = {
8827 "object", "sealed_class", "class", "interface", "complex"
8831 is_monomorphic_array (MonoClass *klass)
8833 MonoClass *element_class;
8834 if (klass->rank != 1)
8837 element_class = klass->element_class;
8838 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8842 get_virtual_stelemref_kind (MonoClass *element_class)
8844 if (element_class == mono_defaults.object_class)
8845 return STELEMREF_OBJECT;
8846 if (is_monomorphic_array (element_class))
8847 return STELEMREF_SEALED_CLASS;
8848 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8849 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8850 #ifdef COMPRESSED_INTERFACE_BITMAP
8851 return STELEMREF_COMPLEX;
8853 return STELEMREF_INTERFACE;
8855 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8856 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8857 return STELEMREF_COMPLEX;
8858 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8859 return STELEMREF_SEALED_CLASS;
8860 return STELEMREF_CLASS;
8866 load_array_element_address (MonoMethodBuilder *mb)
8868 mono_mb_emit_ldarg (mb, 0);
8869 mono_mb_emit_ldarg (mb, 1);
8870 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8874 load_array_class (MonoMethodBuilder *mb, int aklass)
8876 mono_mb_emit_ldarg (mb, 0);
8877 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8878 mono_mb_emit_byte (mb, CEE_LDIND_I);
8879 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8880 mono_mb_emit_byte (mb, CEE_LDIND_I);
8881 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8882 mono_mb_emit_byte (mb, CEE_LDIND_I);
8883 mono_mb_emit_stloc (mb, aklass);
8887 load_value_class (MonoMethodBuilder *mb, int vklass)
8889 mono_mb_emit_ldarg (mb, 2);
8890 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8891 mono_mb_emit_byte (mb, CEE_LDIND_I);
8892 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8893 mono_mb_emit_byte (mb, CEE_LDIND_I);
8894 mono_mb_emit_stloc (mb, vklass);
8900 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8902 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8903 printf ("slow vstore of %s\n", name);
8909 * The wrapper info for the wrapper is a WrapperInfo structure.
8912 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8913 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8914 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8915 * - Add a case for arrays of arrays.
8918 get_virtual_stelemref_wrapper (int kind)
8920 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8921 static MonoMethodSignature *signature;
8922 MonoMethodBuilder *mb;
8925 const char *param_names [16];
8927 int aklass, vklass, vtable, uiid;
8928 int array_slot_addr;
8931 if (cached_methods [kind])
8932 return cached_methods [kind];
8934 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8935 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8939 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8941 /* void this::stelemref (size_t idx, void* value) */
8942 sig->ret = &mono_defaults.void_class->byval_arg;
8943 sig->hasthis = TRUE;
8944 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8945 sig->params [1] = &mono_defaults.object_class->byval_arg;
8950 param_names [0] = "index";
8951 param_names [1] = "value";
8952 mono_mb_set_param_names (mb, param_names);
8954 /*For now simply call plain old stelemref*/
8956 case STELEMREF_OBJECT:
8957 /* ldelema (implicit bound check) */
8958 load_array_element_address (mb);
8960 mono_mb_emit_ldarg (mb, 2);
8961 mono_mb_emit_byte (mb, CEE_STIND_REF);
8962 mono_mb_emit_byte (mb, CEE_RET);
8965 case STELEMREF_COMPLEX:
8967 <ldelema (bound check)>
8970 if (!mono_object_isinst (value, aklass))
8974 *array_slot_addr = value;
8977 throw new ArrayTypeMismatchException ();
8980 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8981 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8985 /*Use this to debug/record stores that are going thru the slow path*/
8986 MonoMethodSignature *csig;
8987 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8988 csig->ret = &mono_defaults.void_class->byval_arg;
8989 csig->params [0] = &mono_defaults.object_class->byval_arg;
8990 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8991 csig->params [2] = &mono_defaults.object_class->byval_arg;
8992 mono_mb_emit_ldarg (mb, 0);
8993 mono_mb_emit_ldarg (mb, 1);
8994 mono_mb_emit_ldarg (mb, 2);
8995 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
8999 /* ldelema (implicit bound check) */
9000 load_array_element_address (mb);
9001 mono_mb_emit_stloc (mb, array_slot_addr);
9003 /* if (!value) goto do_store */
9004 mono_mb_emit_ldarg (mb, 2);
9005 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9007 /* aklass = array->vtable->klass->element_class */
9008 load_array_class (mb, aklass);
9010 /*if (mono_object_isinst (value, aklass)) */
9011 mono_mb_emit_ldarg (mb, 2);
9012 mono_mb_emit_ldloc (mb, aklass);
9013 mono_mb_emit_icall (mb, mono_object_isinst);
9014 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9017 mono_mb_patch_branch (mb, b1);
9018 mono_mb_emit_ldloc (mb, array_slot_addr);
9019 mono_mb_emit_ldarg (mb, 2);
9020 mono_mb_emit_byte (mb, CEE_STIND_REF);
9021 mono_mb_emit_byte (mb, CEE_RET);
9024 mono_mb_patch_branch (mb, b2);
9026 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9029 case STELEMREF_SEALED_CLASS:
9031 <ldelema (bound check)>
9035 aklass = array->vtable->klass->element_class;
9036 vklass = value->vtable->klass;
9038 if (vklass != aklass)
9042 *array_slot_addr = value;
9045 throw new ArrayTypeMismatchException ();
9047 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9048 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9049 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9052 /* ldelema (implicit bound check) */
9053 load_array_element_address (mb);
9054 mono_mb_emit_stloc (mb, array_slot_addr);
9056 /* if (!value) goto do_store */
9057 mono_mb_emit_ldarg (mb, 2);
9058 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9060 /* aklass = array->vtable->klass->element_class */
9061 load_array_class (mb, aklass);
9063 /* vklass = value->vtable->klass */
9064 load_value_class (mb, vklass);
9066 /*if (vklass != aklass) goto do_exception; */
9067 mono_mb_emit_ldloc (mb, aklass);
9068 mono_mb_emit_ldloc (mb, vklass);
9069 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9072 mono_mb_patch_branch (mb, b1);
9073 mono_mb_emit_ldloc (mb, array_slot_addr);
9074 mono_mb_emit_ldarg (mb, 2);
9075 mono_mb_emit_byte (mb, CEE_STIND_REF);
9076 mono_mb_emit_byte (mb, CEE_RET);
9079 mono_mb_patch_branch (mb, b2);
9080 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9083 case STELEMREF_CLASS:
9086 <ldelema (bound check)>
9090 aklass = array->vtable->klass->element_class;
9091 vklass = value->vtable->klass;
9093 if (vklass->idepth < aklass->idepth)
9096 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9100 *array_slot_addr = value;
9104 throw new ArrayTypeMismatchException ();
9106 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9107 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9108 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9110 /* ldelema (implicit bound check) */
9111 load_array_element_address (mb);
9112 mono_mb_emit_stloc (mb, array_slot_addr);
9114 /* if (!value) goto do_store */
9115 mono_mb_emit_ldarg (mb, 2);
9116 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9118 /* aklass = array->vtable->klass->element_class */
9119 load_array_class (mb, aklass);
9121 /* vklass = value->vtable->klass */
9122 load_value_class (mb, vklass);
9124 /*if (mono_object_isinst (value, aklass)) */
9125 mono_mb_emit_ldarg (mb, 2);
9126 mono_mb_emit_ldloc (mb, aklass);
9127 mono_mb_emit_icall (mb, mono_object_isinst);
9128 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9130 /* if (vklass->idepth < aklass->idepth) goto failue */
9131 mono_mb_emit_ldloc (mb, vklass);
9132 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9133 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9135 mono_mb_emit_ldloc (mb, aklass);
9136 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9137 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9139 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9141 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9142 mono_mb_emit_ldloc (mb, vklass);
9143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9144 mono_mb_emit_byte (mb, CEE_LDIND_I);
9146 mono_mb_emit_ldloc (mb, aklass);
9147 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9148 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9149 mono_mb_emit_icon (mb, 1);
9150 mono_mb_emit_byte (mb, CEE_SUB);
9151 mono_mb_emit_icon (mb, sizeof (void*));
9152 mono_mb_emit_byte (mb, CEE_MUL);
9153 mono_mb_emit_byte (mb, CEE_ADD);
9154 mono_mb_emit_byte (mb, CEE_LDIND_I);
9156 mono_mb_emit_ldloc (mb, aklass);
9157 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9160 mono_mb_patch_branch (mb, b1);
9161 mono_mb_emit_ldloc (mb, array_slot_addr);
9162 mono_mb_emit_ldarg (mb, 2);
9163 mono_mb_emit_byte (mb, CEE_STIND_REF);
9164 mono_mb_emit_byte (mb, CEE_RET);
9167 mono_mb_patch_branch (mb, b2);
9168 mono_mb_patch_branch (mb, b3);
9170 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9173 case STELEMREF_INTERFACE:
9180 klass = array->obj.vtable->klass->element_class;
9182 uiid = klass->interface_id;
9183 if (uiid > vt->max_interface_id)
9185 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9188 mono_array_setref (array, index, value);
9191 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9193 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9194 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9195 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9196 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9198 /* ldelema (implicit bound check) */
9199 load_array_element_address (mb);
9200 mono_mb_emit_stloc (mb, array_slot_addr);
9202 /* if (!value) goto do_store */
9203 mono_mb_emit_ldarg (mb, 2);
9204 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9206 /* klass = array->vtable->klass->element_class */
9207 load_array_class (mb, aklass);
9209 /* vt = value->vtable */
9210 mono_mb_emit_ldarg (mb, 2);
9211 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9212 mono_mb_emit_byte (mb, CEE_LDIND_I);
9213 mono_mb_emit_stloc (mb, vtable);
9215 /* uiid = klass->interface_id; */
9216 mono_mb_emit_ldloc (mb, aklass);
9217 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9218 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9219 mono_mb_emit_stloc (mb, uiid);
9221 /*if (uiid > vt->max_interface_id)*/
9222 mono_mb_emit_ldloc (mb, uiid);
9223 mono_mb_emit_ldloc (mb, vtable);
9224 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9225 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9226 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9228 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9230 /*vt->interface_bitmap*/
9231 mono_mb_emit_ldloc (mb, vtable);
9232 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9233 mono_mb_emit_byte (mb, CEE_LDIND_I);
9236 mono_mb_emit_ldloc (mb, uiid);
9237 mono_mb_emit_icon (mb, 3);
9238 mono_mb_emit_byte (mb, CEE_SHR_UN);
9240 /*vt->interface_bitmap [(uiid) >> 3]*/
9241 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9242 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9244 /*(1 << ((uiid)&7)))*/
9245 mono_mb_emit_icon (mb, 1);
9246 mono_mb_emit_ldloc (mb, uiid);
9247 mono_mb_emit_icon (mb, 7);
9248 mono_mb_emit_byte (mb, CEE_AND);
9249 mono_mb_emit_byte (mb, CEE_SHL);
9251 /*bitwise and the whole thing*/
9252 mono_mb_emit_byte (mb, CEE_AND);
9253 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9256 mono_mb_patch_branch (mb, b1);
9257 mono_mb_emit_ldloc (mb, array_slot_addr);
9258 mono_mb_emit_ldarg (mb, 2);
9259 mono_mb_emit_byte (mb, CEE_STIND_REF);
9260 mono_mb_emit_byte (mb, CEE_RET);
9263 mono_mb_patch_branch (mb, b2);
9264 mono_mb_patch_branch (mb, b3);
9265 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9269 mono_mb_emit_ldarg (mb, 0);
9270 mono_mb_emit_ldarg (mb, 1);
9271 mono_mb_emit_ldarg (mb, 2);
9272 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9273 mono_mb_emit_byte (mb, CEE_RET);
9276 #endif /* DISABLE_JIT */
9277 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9278 info->d.virtual_stelemref.kind = kind;
9279 res = mono_mb_create (mb, signature, 4, info);
9280 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9282 mono_marshal_lock ();
9283 if (!cached_methods [kind]) {
9284 cached_methods [kind] = res;
9285 mono_marshal_unlock ();
9287 mono_marshal_unlock ();
9288 mono_free_method (res);
9292 return cached_methods [kind];
9296 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9300 g_assert (array_class->rank == 1);
9301 kind = get_virtual_stelemref_kind (array_class->element_class);
9303 return get_virtual_stelemref_wrapper (kind);
9307 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9312 *nwrappers = STELEMREF_KIND_COUNT;
9313 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9314 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9315 res [i] = get_virtual_stelemref_wrapper (i);
9320 * The wrapper info for the wrapper is a WrapperInfo structure.
9323 mono_marshal_get_stelemref (void)
9325 static MonoMethod* ret = NULL;
9326 MonoMethodSignature *sig;
9327 MonoMethodBuilder *mb;
9330 guint32 b1, b2, b3, b4;
9333 int array_slot_addr;
9338 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9341 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9343 /* void stelemref (void* array, int idx, void* value) */
9344 sig->ret = &mono_defaults.void_class->byval_arg;
9345 sig->params [0] = &mono_defaults.object_class->byval_arg;
9346 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9347 sig->params [2] = &mono_defaults.object_class->byval_arg;
9350 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9351 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9352 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9356 <ldelema (bound check)>
9360 aklass = array->vtable->klass->element_class;
9361 vklass = value->vtable->klass;
9363 if (vklass->idepth < aklass->idepth)
9366 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9370 *array_slot_addr = value;
9374 if (mono_object_isinst (value, aklass))
9377 throw new ArrayTypeMismatchException ();
9380 /* ldelema (implicit bound check) */
9381 mono_mb_emit_ldarg (mb, 0);
9382 mono_mb_emit_ldarg (mb, 1);
9383 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9384 mono_mb_emit_stloc (mb, array_slot_addr);
9386 /* if (!value) goto do_store */
9387 mono_mb_emit_ldarg (mb, 2);
9388 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9390 /* aklass = array->vtable->klass->element_class */
9391 mono_mb_emit_ldarg (mb, 0);
9392 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9393 mono_mb_emit_byte (mb, CEE_LDIND_I);
9394 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9395 mono_mb_emit_byte (mb, CEE_LDIND_I);
9396 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9397 mono_mb_emit_byte (mb, CEE_LDIND_I);
9398 mono_mb_emit_stloc (mb, aklass);
9400 /* vklass = value->vtable->klass */
9401 mono_mb_emit_ldarg (mb, 2);
9402 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9403 mono_mb_emit_byte (mb, CEE_LDIND_I);
9404 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9405 mono_mb_emit_byte (mb, CEE_LDIND_I);
9406 mono_mb_emit_stloc (mb, vklass);
9408 /* if (vklass->idepth < aklass->idepth) goto failue */
9409 mono_mb_emit_ldloc (mb, vklass);
9410 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9411 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9413 mono_mb_emit_ldloc (mb, aklass);
9414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9415 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9417 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9419 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9420 mono_mb_emit_ldloc (mb, vklass);
9421 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9422 mono_mb_emit_byte (mb, CEE_LDIND_I);
9424 mono_mb_emit_ldloc (mb, aklass);
9425 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9426 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9427 mono_mb_emit_icon (mb, 1);
9428 mono_mb_emit_byte (mb, CEE_SUB);
9429 mono_mb_emit_icon (mb, sizeof (void*));
9430 mono_mb_emit_byte (mb, CEE_MUL);
9431 mono_mb_emit_byte (mb, CEE_ADD);
9432 mono_mb_emit_byte (mb, CEE_LDIND_I);
9434 mono_mb_emit_ldloc (mb, aklass);
9436 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9438 copy_pos = mono_mb_get_label (mb);
9440 mono_mb_patch_branch (mb, b1);
9441 mono_mb_emit_ldloc (mb, array_slot_addr);
9442 mono_mb_emit_ldarg (mb, 2);
9443 mono_mb_emit_byte (mb, CEE_STIND_REF);
9445 mono_mb_emit_byte (mb, CEE_RET);
9448 mono_mb_patch_branch (mb, b2);
9449 mono_mb_patch_branch (mb, b3);
9451 mono_mb_emit_ldarg (mb, 2);
9452 mono_mb_emit_ldloc (mb, aklass);
9453 mono_mb_emit_icall (mb, mono_object_isinst);
9455 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9456 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9457 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9459 mono_mb_emit_byte (mb, CEE_RET);
9461 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9462 ret = mono_mb_create (mb, sig, 4, info);
9469 * mono_marshal_get_gsharedvt_in_wrapper:
9471 * This wrapper handles calls from normal code to gsharedvt code.
9473 * The wrapper info for the wrapper is a WrapperInfo structure.
9476 mono_marshal_get_gsharedvt_in_wrapper (void)
9478 static MonoMethod* ret = NULL;
9479 MonoMethodSignature *sig;
9480 MonoMethodBuilder *mb;
9486 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9488 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9489 sig->ret = &mono_defaults.void_class->byval_arg;
9493 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9495 mono_mb_emit_byte (mb, CEE_RET);
9497 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9498 ret = mono_mb_create (mb, sig, 4, info);
9505 * mono_marshal_get_gsharedvt_out_wrapper:
9507 * This wrapper handles calls from gsharedvt code to normal code.
9509 * The wrapper info for the wrapper is a WrapperInfo structure.
9512 mono_marshal_get_gsharedvt_out_wrapper (void)
9514 static MonoMethod* ret = NULL;
9515 MonoMethodSignature *sig;
9516 MonoMethodBuilder *mb;
9522 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9524 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9525 sig->ret = &mono_defaults.void_class->byval_arg;
9529 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9531 mono_mb_emit_byte (mb, CEE_RET);
9533 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9534 ret = mono_mb_create (mb, sig, 4, info);
9546 /* LOCKING: vars accessed under the marshal lock */
9547 static ArrayElemAddr *elem_addr_cache = NULL;
9548 static int elem_addr_cache_size = 0;
9549 static int elem_addr_cache_next = 0;
9552 * mono_marshal_get_array_address:
9553 * @rank: rank of the array type
9554 * @elem_size: size in bytes of an element of an array.
9556 * Returns a MonoMethod that implements the code to get the address
9557 * of an element in a multi-dimenasional array of @rank dimensions.
9558 * The returned method takes an array as the first argument and then
9559 * @rank indexes for the @rank dimensions.
9560 * If ELEM_SIZE is 0, read the array size from the array object.
9563 mono_marshal_get_array_address (int rank, int elem_size)
9566 MonoMethodBuilder *mb;
9567 MonoMethodSignature *sig;
9570 int i, bounds, ind, realidx;
9571 int branch_pos, *branch_positions;
9575 mono_marshal_lock ();
9576 for (i = 0; i < elem_addr_cache_next; ++i) {
9577 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9578 ret = elem_addr_cache [i].method;
9582 mono_marshal_unlock ();
9586 branch_positions = g_new0 (int, rank);
9588 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9590 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9591 sig->ret = &mono_defaults.int_class->byval_arg;
9592 sig->params [0] = &mono_defaults.object_class->byval_arg;
9593 for (i = 0; i < rank; ++i) {
9594 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9597 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9598 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9602 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9603 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9604 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9606 /* bounds = array->bounds; */
9607 mono_mb_emit_ldarg (mb, 0);
9608 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9609 mono_mb_emit_byte (mb, CEE_LDIND_I);
9610 mono_mb_emit_stloc (mb, bounds);
9612 /* ind is the overall element index, realidx is the partial index in a single dimension */
9613 /* ind = idx0 - bounds [0].lower_bound */
9614 mono_mb_emit_ldarg (mb, 1);
9615 mono_mb_emit_ldloc (mb, bounds);
9616 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9617 mono_mb_emit_byte (mb, CEE_ADD);
9618 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9619 mono_mb_emit_byte (mb, CEE_SUB);
9620 mono_mb_emit_stloc (mb, ind);
9621 /* if (ind >= bounds [0].length) goto exeception; */
9622 mono_mb_emit_ldloc (mb, ind);
9623 mono_mb_emit_ldloc (mb, bounds);
9624 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9625 mono_mb_emit_byte (mb, CEE_ADD);
9626 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9627 /* note that we use unsigned comparison */
9628 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9630 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9631 * We could also decide to ignore the passed elem_size and get it
9632 * from the array object, to reduce the number of methods we generate:
9633 * the additional cost is 3 memory loads and a non-immediate mul.
9635 for (i = 1; i < rank; ++i) {
9636 /* realidx = idxi - bounds [i].lower_bound */
9637 mono_mb_emit_ldarg (mb, 1 + i);
9638 mono_mb_emit_ldloc (mb, bounds);
9639 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9640 mono_mb_emit_byte (mb, CEE_ADD);
9641 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9642 mono_mb_emit_byte (mb, CEE_SUB);
9643 mono_mb_emit_stloc (mb, realidx);
9644 /* if (realidx >= bounds [i].length) goto exeception; */
9645 mono_mb_emit_ldloc (mb, realidx);
9646 mono_mb_emit_ldloc (mb, bounds);
9647 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9648 mono_mb_emit_byte (mb, CEE_ADD);
9649 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9650 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9651 /* ind = ind * bounds [i].length + realidx */
9652 mono_mb_emit_ldloc (mb, ind);
9653 mono_mb_emit_ldloc (mb, bounds);
9654 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9655 mono_mb_emit_byte (mb, CEE_ADD);
9656 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9657 mono_mb_emit_byte (mb, CEE_MUL);
9658 mono_mb_emit_ldloc (mb, realidx);
9659 mono_mb_emit_byte (mb, CEE_ADD);
9660 mono_mb_emit_stloc (mb, ind);
9663 /* return array->vector + ind * element_size */
9664 mono_mb_emit_ldarg (mb, 0);
9665 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9666 mono_mb_emit_ldloc (mb, ind);
9668 mono_mb_emit_icon (mb, elem_size);
9670 /* Load arr->vtable->klass->sizes.element_class */
9671 mono_mb_emit_ldarg (mb, 0);
9672 mono_mb_emit_byte (mb, CEE_CONV_I);
9673 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9674 mono_mb_emit_byte (mb, CEE_ADD);
9675 mono_mb_emit_byte (mb, CEE_LDIND_I);
9676 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9677 mono_mb_emit_byte (mb, CEE_ADD);
9678 mono_mb_emit_byte (mb, CEE_LDIND_I);
9679 /* sizes is an union, so this reads sizes.element_size */
9680 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9681 mono_mb_emit_byte (mb, CEE_ADD);
9682 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9684 mono_mb_emit_byte (mb, CEE_MUL);
9685 mono_mb_emit_byte (mb, CEE_ADD);
9686 mono_mb_emit_byte (mb, CEE_RET);
9688 /* patch the branches to get here and throw */
9689 for (i = 1; i < rank; ++i) {
9690 mono_mb_patch_branch (mb, branch_positions [i]);
9692 mono_mb_patch_branch (mb, branch_pos);
9693 /* throw exception */
9694 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9696 g_free (branch_positions);
9697 #endif /* DISABLE_JIT */
9699 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9700 info->d.element_addr.rank = rank;
9701 info->d.element_addr.elem_size = elem_size;
9702 ret = mono_mb_create (mb, sig, 4, info);
9705 /* cache the result */
9707 mono_marshal_lock ();
9708 for (i = 0; i < elem_addr_cache_next; ++i) {
9709 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9710 /* FIXME: free ret */
9711 ret = elem_addr_cache [i].method;
9717 if (elem_addr_cache_next >= elem_addr_cache_size) {
9718 int new_size = elem_addr_cache_size + 4;
9719 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9720 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9721 g_free (elem_addr_cache);
9722 elem_addr_cache = new_array;
9723 elem_addr_cache_size = new_size;
9725 elem_addr_cache [elem_addr_cache_next].rank = rank;
9726 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9727 elem_addr_cache [elem_addr_cache_next].method = ret;
9728 elem_addr_cache_next ++;
9730 mono_marshal_unlock ();
9735 * mono_marshal_get_array_accessor_wrapper:
9737 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9740 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9742 MonoMethodSignature *sig;
9743 MonoMethodBuilder *mb;
9747 MonoGenericContext *ctx = NULL;
9748 MonoMethod *orig_method = NULL;
9749 MonoGenericContainer *container = NULL;
9753 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9754 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9755 * FIXME: Use generic methods.
9762 g_assert_not_reached ();
9764 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9765 if ((res = mono_marshal_find_in_cache (cache, method)))
9769 sig = signature_dup (method->klass->image, mono_method_signature (method));
9772 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9775 /* Call the method */
9777 mono_mb_emit_ldarg (mb, 0);
9778 for (i = 0; i < sig->param_count; i++)
9779 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9783 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9784 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9786 mono_mb_emit_managed_call (mb, method, NULL);
9788 mono_mb_emit_byte (mb, CEE_RET);
9793 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9794 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9796 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9797 info->d.array_accessor.method = method;
9799 res = mono_mb_create_and_cache_full (cache, method,
9800 mb, sig, sig->param_count + 16,
9809 mono_marshal_alloc (gulong size)
9814 res = CoTaskMemAlloc (size);
9816 res = g_try_malloc ((gulong)size);
9818 mono_gc_out_of_memory ((gulong)size);
9824 mono_marshal_free (gpointer ptr)
9827 CoTaskMemFree (ptr);
9834 mono_marshal_free_array (gpointer *ptr, int size)
9841 for (i = 0; i < size; i++)
9847 mono_marshal_string_to_utf16 (MonoString *s)
9849 return s ? mono_string_chars (s) : NULL;
9853 mono_marshal_string_to_utf16_copy (MonoString *s)
9858 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9859 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9860 res [mono_string_length (s)] = 0;
9866 * mono_marshal_set_last_error:
9868 * This function is invoked to set the last error value from a P/Invoke call
9869 * which has SetLastError set.
9872 mono_marshal_set_last_error (void)
9875 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9877 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9882 mono_marshal_set_last_error_windows (int error)
9885 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9890 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9891 gpointer dest, gint32 length)
9896 MONO_CHECK_ARG_NULL (src,);
9897 MONO_CHECK_ARG_NULL (dest,);
9899 if (src->obj.vtable->klass->rank != 1) {
9900 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9903 if (start_index < 0) {
9904 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9908 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9911 if (start_index + length > mono_array_length (src)) {
9912 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9916 element_size = mono_array_element_size (src->obj.vtable->klass);
9918 /* no references should be involved */
9919 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9921 memcpy (dest, source_addr, length * element_size);
9925 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9926 MonoArray *dest, gint32 length)
9931 MONO_CHECK_ARG_NULL (src,);
9932 MONO_CHECK_ARG_NULL (dest,);
9934 if (dest->obj.vtable->klass->rank != 1) {
9935 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9938 if (start_index < 0) {
9939 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9943 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9946 if (start_index + length > mono_array_length (dest)) {
9947 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9950 element_size = mono_array_element_size (dest->obj.vtable->klass);
9952 /* no references should be involved */
9953 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9955 memcpy (dest_addr, src, length * element_size);
9959 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9964 return mono_string_new (mono_domain_get (), ptr);
9968 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9971 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
9974 return mono_string_new_len (mono_domain_get (), ptr, len);
9979 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9981 MonoDomain *domain = mono_domain_get ();
9991 return mono_string_new_utf16 (domain, ptr, len);
9995 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9997 MonoDomain *domain = mono_domain_get ();
10000 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10003 return mono_string_new_utf16 (domain, ptr, len);
10008 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10010 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10014 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10020 MONO_CHECK_ARG_NULL (rtype, 0);
10022 type = rtype->type;
10023 klass = mono_class_from_mono_type (type);
10024 if (!mono_class_init (klass)) {
10025 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10029 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10031 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10032 return sizeof (gpointer);
10033 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10035 MonoException *exc;
10037 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10038 exc = mono_get_exception_argument ("t", msg);
10040 mono_set_pending_exception (exc);
10044 return mono_class_native_size (klass, NULL);
10048 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10050 MonoMethod *method;
10053 MONO_CHECK_ARG_NULL (obj,);
10054 MONO_CHECK_ARG_NULL (dst,);
10056 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10060 pa [2] = &delete_old;
10062 mono_runtime_invoke (method, NULL, pa, NULL);
10066 ptr_to_structure (gpointer src, MonoObject *dst)
10068 MonoMethod *method;
10071 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10076 mono_runtime_invoke (method, NULL, pa, NULL);
10080 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10084 MONO_CHECK_ARG_NULL (src,);
10085 MONO_CHECK_ARG_NULL (dst,);
10087 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10089 if (t->type == MONO_TYPE_VALUETYPE) {
10090 MonoException *exc;
10093 tmp = g_strdup_printf ("Destination is a boxed value type.");
10094 exc = mono_get_exception_argument ("dst", tmp);
10097 mono_set_pending_exception (exc);
10101 ptr_to_structure (src, dst);
10105 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10108 MonoDomain *domain = mono_domain_get ();
10113 MONO_CHECK_ARG_NULL (type, NULL);
10115 klass = mono_class_from_mono_type (type->type);
10116 if (!mono_class_init (klass)) {
10117 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10121 res = mono_object_new (domain, klass);
10123 ptr_to_structure (src, res);
10129 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10131 MonoMarshalType *info;
10134 int match_index = -1;
10136 MONO_CHECK_ARG_NULL (type, 0);
10137 MONO_CHECK_ARG_NULL (field_name, 0);
10139 fname = mono_string_to_utf8 (field_name);
10140 klass = mono_class_from_mono_type (type->type);
10141 if (!mono_class_init (klass)) {
10142 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10146 while (klass && match_index == -1) {
10147 MonoClassField* field;
10149 gpointer iter = NULL;
10150 while ((field = mono_class_get_fields (klass, &iter))) {
10151 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10153 if (!strcmp (fname, mono_field_get_name (field))) {
10160 if (match_index == -1)
10161 klass = klass->parent;
10166 if(match_index == -1) {
10167 MonoException* exc;
10170 /* Get back original class instance */
10171 klass = mono_class_from_mono_type (type->type);
10173 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10174 exc = mono_get_exception_argument ("fieldName", tmp);
10177 mono_set_pending_exception ((MonoException*)exc);
10181 info = mono_marshal_load_type_info (klass);
10182 return info->fields [match_index].offset;
10186 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10191 tres = mono_string_to_utf8 (string);
10195 len = strlen (tres) + 1;
10196 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10197 memcpy (ret, tres, len);
10202 return mono_string_to_utf8 (string);
10207 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10209 if (string == NULL)
10212 #ifdef TARGET_WIN32
10213 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10214 ((mono_string_length (string) + 1) * 2);
10216 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10218 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10219 res [mono_string_length (string)] = 0;
10225 mono_struct_delete_old (MonoClass *klass, char *ptr)
10227 MonoMarshalType *info;
10230 info = mono_marshal_load_type_info (klass);
10232 for (i = 0; i < info->num_fields; i++) {
10233 MonoMarshalConv conv;
10234 MonoType *ftype = info->fields [i].field->type;
10237 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10240 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10241 klass->unicode, &conv);
10243 cpos = ptr + info->fields [i].offset;
10246 case MONO_MARSHAL_CONV_NONE:
10247 if (MONO_TYPE_ISSTRUCT (ftype)) {
10248 mono_struct_delete_old (ftype->data.klass, cpos);
10252 case MONO_MARSHAL_CONV_STR_LPWSTR:
10253 /* We assume this field points inside a MonoString */
10255 case MONO_MARSHAL_CONV_STR_LPTSTR:
10256 #ifdef TARGET_WIN32
10257 /* We assume this field points inside a MonoString
10261 case MONO_MARSHAL_CONV_STR_LPSTR:
10262 case MONO_MARSHAL_CONV_STR_BSTR:
10263 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10264 case MONO_MARSHAL_CONV_STR_TBSTR:
10265 mono_marshal_free (*(gpointer *)cpos);
10275 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10279 MONO_CHECK_ARG_NULL (src,);
10280 MONO_CHECK_ARG_NULL (type,);
10282 klass = mono_class_from_mono_type (type->type);
10283 if (!mono_class_init (klass)) {
10284 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10288 mono_struct_delete_old (klass, (char *)src);
10292 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10296 if ((gulong)size == 0)
10297 /* This returns a valid pointer for size 0 on MS.NET */
10301 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10303 res = g_try_malloc ((gulong)size);
10306 mono_gc_out_of_memory ((gulong)size);
10312 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10317 mono_gc_out_of_memory ((gulong)size);
10322 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10324 res = g_try_realloc (ptr, (gulong)size);
10327 mono_gc_out_of_memory ((gulong)size);
10333 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10343 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10348 res = CoTaskMemAlloc (size);
10350 res = g_try_malloc ((gulong)size);
10353 mono_gc_out_of_memory ((gulong)size);
10358 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10361 CoTaskMemFree (ptr);
10368 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10373 res = CoTaskMemRealloc (ptr, size);
10375 res = g_try_realloc (ptr, (gulong)size);
10378 mono_gc_out_of_memory ((gulong)size);
10383 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10385 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10389 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10391 MonoClass *klass = mono_type_get_class (type->type);
10392 if (!mono_class_init (klass)) {
10393 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10397 return mono_ftnptr_to_delegate (klass, ftn);
10401 * mono_marshal_is_loading_type_info:
10403 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10407 mono_marshal_is_loading_type_info (MonoClass *klass)
10409 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10411 return g_slist_find (loads_list, klass) != NULL;
10415 * mono_marshal_load_type_info:
10417 * Initialize klass->marshal_info using information from metadata. This function can
10418 * recursively call itself, and the caller is responsible to avoid that by calling
10419 * mono_marshal_is_loading_type_info () beforehand.
10421 * LOCKING: Acquires the loader lock.
10424 mono_marshal_load_type_info (MonoClass* klass)
10427 guint32 native_size = 0, min_align = 1, packing;
10428 MonoMarshalType *info;
10429 MonoClassField* field;
10432 GSList *loads_list;
10434 g_assert (klass != NULL);
10436 if (klass->marshal_info)
10437 return klass->marshal_info;
10439 if (!klass->inited)
10440 mono_class_init (klass);
10442 if (klass->marshal_info)
10443 return klass->marshal_info;
10446 * This function can recursively call itself, so we keep the list of classes which are
10447 * under initialization in a TLS list.
10449 g_assert (!mono_marshal_is_loading_type_info (klass));
10450 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10451 loads_list = g_slist_prepend (loads_list, klass);
10452 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10455 while ((field = mono_class_get_fields (klass, &iter))) {
10456 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10458 if (mono_field_is_deleted (field))
10463 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10465 /* The mempool is protected by the loader lock */
10466 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10467 info->num_fields = count;
10469 /* Try to find a size for this type in metadata */
10470 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10472 if (klass->parent) {
10473 int parent_size = mono_class_native_size (klass->parent, NULL);
10475 /* Add parent size to real size */
10476 native_size += parent_size;
10477 info->native_size = parent_size;
10480 packing = klass->packing_size ? klass->packing_size : 8;
10483 while ((field = mono_class_get_fields (klass, &iter))) {
10487 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10490 if (mono_field_is_deleted (field))
10492 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10493 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10494 NULL, NULL, &info->fields [j].mspec);
10496 info->fields [j].field = field;
10498 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10499 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10500 /* This field is a hack inserted by MCS to empty structures */
10505 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10506 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10507 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10508 &align, TRUE, klass->unicode);
10509 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10510 min_align = MAX (align, min_align);
10511 info->fields [j].offset = info->native_size;
10512 info->fields [j].offset += align - 1;
10513 info->fields [j].offset &= ~(align - 1);
10514 info->native_size = info->fields [j].offset + size;
10516 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10517 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10518 &align, TRUE, klass->unicode);
10519 min_align = MAX (align, min_align);
10520 info->fields [j].offset = field->offset - sizeof (MonoObject);
10521 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10527 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10528 info->native_size = MAX (native_size, info->native_size);
10530 * If the provided Size is equal or larger than the calculated size, and there
10531 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10533 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10534 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10537 min_align = MIN (min_align, packing);
10541 if (info->native_size & (min_align - 1)) {
10542 info->native_size += min_align - 1;
10543 info->native_size &= ~(min_align - 1);
10546 info->min_align = min_align;
10548 /* Update the class's blittable info, if the layouts don't match */
10549 if (info->native_size != mono_class_value_size (klass, NULL))
10550 klass->blittable = FALSE;
10552 /* If this is an array type, ensure that we have element info */
10553 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10554 mono_marshal_load_type_info (klass->element_class);
10557 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10558 loads_list = g_slist_remove (loads_list, klass);
10559 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10561 mono_marshal_lock ();
10562 if (!klass->marshal_info) {
10563 /*We do double-checking locking on marshal_info */
10564 mono_memory_barrier ();
10565 klass->marshal_info = info;
10567 mono_marshal_unlock ();
10569 return klass->marshal_info;
10573 * mono_class_native_size:
10576 * Returns: the native size of an object instance (when marshaled
10577 * to unmanaged code)
10580 mono_class_native_size (MonoClass *klass, guint32 *align)
10582 if (!klass->marshal_info) {
10583 if (mono_marshal_is_loading_type_info (klass)) {
10588 mono_marshal_load_type_info (klass);
10593 *align = klass->marshal_info->min_align;
10595 return klass->marshal_info->native_size;
10599 * mono_type_native_stack_size:
10600 * @t: the type to return the size it uses on the stack
10602 * Returns: the number of bytes required to hold an instance of this
10603 * type on the native stack
10606 mono_type_native_stack_size (MonoType *t, guint32 *align)
10610 g_assert (t != NULL);
10616 *align = sizeof (gpointer);
10617 return sizeof (gpointer);
10621 case MONO_TYPE_BOOLEAN:
10622 case MONO_TYPE_CHAR:
10633 case MONO_TYPE_STRING:
10634 case MONO_TYPE_OBJECT:
10635 case MONO_TYPE_CLASS:
10636 case MONO_TYPE_SZARRAY:
10637 case MONO_TYPE_PTR:
10638 case MONO_TYPE_FNPTR:
10639 case MONO_TYPE_ARRAY:
10640 *align = sizeof (gpointer);
10641 return sizeof (gpointer);
10646 *align = MONO_ABI_ALIGNOF (double);
10650 *align = MONO_ABI_ALIGNOF (gint64);
10652 case MONO_TYPE_GENERICINST:
10653 if (!mono_type_generic_inst_is_valuetype (t)) {
10654 *align = sizeof (gpointer);
10655 return sizeof (gpointer);
10658 case MONO_TYPE_TYPEDBYREF:
10659 case MONO_TYPE_VALUETYPE: {
10661 MonoClass *klass = mono_class_from_mono_type (t);
10663 if (klass->enumtype)
10664 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10666 size = mono_class_native_size (klass, align);
10667 *align = *align + 3;
10677 g_error ("type 0x%02x unknown", t->type);
10683 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10684 gboolean as_field, gboolean unicode)
10686 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10689 switch (native_type) {
10690 case MONO_NATIVE_BOOLEAN:
10693 case MONO_NATIVE_I1:
10694 case MONO_NATIVE_U1:
10697 case MONO_NATIVE_I2:
10698 case MONO_NATIVE_U2:
10699 case MONO_NATIVE_VARIANTBOOL:
10702 case MONO_NATIVE_I4:
10703 case MONO_NATIVE_U4:
10704 case MONO_NATIVE_ERROR:
10707 case MONO_NATIVE_I8:
10708 case MONO_NATIVE_U8:
10709 *align = MONO_ABI_ALIGNOF (gint64);
10711 case MONO_NATIVE_R4:
10714 case MONO_NATIVE_R8:
10715 *align = MONO_ABI_ALIGNOF (double);
10717 case MONO_NATIVE_INT:
10718 case MONO_NATIVE_UINT:
10719 case MONO_NATIVE_LPSTR:
10720 case MONO_NATIVE_LPWSTR:
10721 case MONO_NATIVE_LPTSTR:
10722 case MONO_NATIVE_BSTR:
10723 case MONO_NATIVE_ANSIBSTR:
10724 case MONO_NATIVE_TBSTR:
10725 case MONO_NATIVE_LPARRAY:
10726 case MONO_NATIVE_SAFEARRAY:
10727 case MONO_NATIVE_IUNKNOWN:
10728 case MONO_NATIVE_IDISPATCH:
10729 case MONO_NATIVE_INTERFACE:
10730 case MONO_NATIVE_ASANY:
10731 case MONO_NATIVE_FUNC:
10732 case MONO_NATIVE_LPSTRUCT:
10733 *align = MONO_ABI_ALIGNOF (gpointer);
10734 return sizeof (gpointer);
10735 case MONO_NATIVE_STRUCT:
10736 klass = mono_class_from_mono_type (type);
10737 if (klass == mono_defaults.object_class &&
10738 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10742 return mono_class_native_size (klass, align);
10743 case MONO_NATIVE_BYVALTSTR: {
10744 int esize = unicode ? 2: 1;
10747 return mspec->data.array_data.num_elem * esize;
10749 case MONO_NATIVE_BYVALARRAY: {
10750 // FIXME: Have to consider ArraySubType
10752 klass = mono_class_from_mono_type (type);
10753 if (klass->element_class == mono_defaults.char_class) {
10754 esize = unicode ? 2 : 1;
10757 esize = mono_class_native_size (klass->element_class, align);
10760 return mspec->data.array_data.num_elem * esize;
10762 case MONO_NATIVE_CUSTOM:
10763 *align = sizeof (gpointer);
10764 return sizeof (gpointer);
10766 case MONO_NATIVE_CURRENCY:
10767 case MONO_NATIVE_VBBYREFSTR:
10769 g_error ("native type %02x not implemented", native_type);
10772 g_assert_not_reached ();
10777 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10785 t = &o->vtable->klass->byval_arg;
10789 case MONO_TYPE_PTR:
10792 case MONO_TYPE_BOOLEAN:
10795 case MONO_TYPE_CHAR:
10800 return mono_object_unbox (o);
10802 case MONO_TYPE_STRING:
10803 switch (string_encoding) {
10804 case MONO_NATIVE_LPWSTR:
10805 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10807 case MONO_NATIVE_LPSTR:
10808 return mono_string_to_lpstr ((MonoString*)o);
10811 g_warning ("marshaling conversion %d not implemented", string_encoding);
10812 g_assert_not_reached ();
10815 case MONO_TYPE_CLASS:
10816 case MONO_TYPE_VALUETYPE: {
10817 MonoMethod *method;
10820 MonoBoolean delete_old = FALSE;
10822 klass = t->data.klass;
10824 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10827 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10828 klass->blittable || klass->enumtype))
10829 return mono_object_unbox (o);
10831 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10833 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10834 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10838 pa [2] = &delete_old;
10840 mono_runtime_invoke (method, NULL, pa, NULL);
10848 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10853 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10861 t = &o->vtable->klass->byval_arg;
10863 case MONO_TYPE_STRING:
10864 switch (string_encoding) {
10865 case MONO_NATIVE_LPWSTR:
10866 case MONO_NATIVE_LPSTR:
10867 mono_marshal_free (ptr);
10870 g_warning ("marshaling conversion %d not implemented", string_encoding);
10871 g_assert_not_reached ();
10874 case MONO_TYPE_CLASS:
10875 case MONO_TYPE_VALUETYPE: {
10876 klass = t->data.klass;
10878 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10879 klass->blittable || klass->enumtype))
10882 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10883 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10889 mono_runtime_invoke (method, NULL, pa, NULL);
10892 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10893 mono_struct_delete_old (klass, ptr);
10896 mono_marshal_free (ptr);
10905 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10907 MonoMethodSignature *sig, *csig;
10908 MonoMethodBuilder *mb;
10913 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10914 mb->method->slot = -1;
10916 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10917 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10919 sig = mono_method_signature (method);
10920 csig = signature_dup (method->klass->image, sig);
10921 csig->generic_param_count = 0;
10923 #ifndef DISABLE_JIT
10924 mono_mb_emit_ldarg (mb, 0);
10925 for (i = 0; i < csig->param_count; i++)
10926 mono_mb_emit_ldarg (mb, i + 1);
10927 mono_mb_emit_managed_call (mb, method, NULL);
10928 mono_mb_emit_byte (mb, CEE_RET);
10930 /* We can corlib internal methods */
10931 mb->skip_visibility = TRUE;
10933 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10934 info->d.generic_array_helper.method = method;
10935 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10943 * The mono_win32_compat_* functions are implementations of inline
10944 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10945 * although not exported by kernel32.
10947 * We map the appropiate kernel32 entries to these functions using
10948 * dllmaps declared in the global etc/mono/config.
10952 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10954 if (!dest || !source)
10957 memcpy (dest, source, length);
10961 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10963 memset (dest, fill, length);
10967 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10969 if (!dest || !source)
10972 memmove (dest, source, length);
10976 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10978 memset (dest, 0, length);
10982 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10987 for (i = 0; i < len; ++i)
10991 g_assert (i < len);
10994 while (byte && !(byte & 1))
10996 g_assert (byte == 1);
10999 *bitmask = buf [i];
11003 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11005 MonoMethodBuilder *mb;
11006 MonoMethodSignature *sig, *csig;
11007 MonoExceptionClause *clause;
11012 int i, param_count, sig_size, pos_leave;
11016 klass = method->klass;
11017 image = method->klass->image;
11018 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11020 if ((res = mono_marshal_find_in_cache (cache, method)))
11023 sig = mono_method_signature (method);
11024 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11026 /* add "this" and exception param */
11027 param_count = sig->param_count + sig->hasthis + 1;
11029 /* dup & extend signature */
11030 csig = mono_metadata_signature_alloc (image, param_count);
11031 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11032 memcpy (csig, sig, sig_size);
11033 csig->param_count = param_count;
11036 csig->call_convention = MONO_CALL_DEFAULT;
11038 if (sig->hasthis) {
11040 csig->params [0] = &klass->byval_arg;
11041 /* move params up by one */
11042 for (i = 0; i < sig->param_count; i++)
11043 csig->params [i + 1] = sig->params [i];
11046 /* setup exception param as byref+[out] */
11047 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11048 &mono_defaults.exception_class->byval_arg);
11049 csig->params [param_count - 1]->byref = 1;
11050 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11052 /* convert struct return to object */
11053 if (MONO_TYPE_ISSTRUCT (sig->ret))
11054 csig->ret = &mono_defaults.object_class->byval_arg;
11056 #ifndef DISABLE_JIT
11057 /* local 0 (temp for exception object) */
11058 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11060 /* local 1 (temp for result) */
11061 if (!MONO_TYPE_IS_VOID (sig->ret))
11062 mono_mb_add_local (mb, sig->ret);
11064 /* clear exception arg */
11065 mono_mb_emit_ldarg (mb, param_count - 1);
11066 mono_mb_emit_byte (mb, CEE_LDNULL);
11067 mono_mb_emit_byte (mb, CEE_STIND_REF);
11070 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11071 clause->try_offset = mono_mb_get_label (mb);
11073 /* push method's args */
11074 for (i = 0; i < param_count - 1; i++) {
11078 mono_mb_emit_ldarg (mb, i);
11080 /* get the byval type of the param */
11081 klass = mono_class_from_mono_type (csig->params [i]);
11082 type = &klass->byval_arg;
11084 /* unbox struct args */
11085 if (MONO_TYPE_ISSTRUCT (type)) {
11086 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11088 /* byref args & and the "this" arg must remain a ptr.
11089 Otherwise make a copy of the value type */
11090 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11091 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11093 csig->params [i] = &mono_defaults.object_class->byval_arg;
11098 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11099 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11101 mono_mb_emit_op (mb, CEE_CALL, method);
11103 /* save result at local 1 */
11104 if (!MONO_TYPE_IS_VOID (sig->ret))
11105 mono_mb_emit_stloc (mb, 1);
11107 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11110 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11111 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11112 clause->data.catch_class = mono_defaults.object_class;
11114 clause->handler_offset = mono_mb_get_label (mb);
11116 /* store exception at local 0 */
11117 mono_mb_emit_stloc (mb, 0);
11118 mono_mb_emit_ldarg (mb, param_count - 1);
11119 mono_mb_emit_ldloc (mb, 0);
11120 mono_mb_emit_byte (mb, CEE_STIND_REF);
11121 mono_mb_emit_branch (mb, CEE_LEAVE);
11123 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11125 mono_mb_set_clauses (mb, 1, clause);
11127 mono_mb_patch_branch (mb, pos_leave);
11130 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11131 mono_mb_emit_ldloc (mb, 1);
11133 /* box the return value */
11134 if (MONO_TYPE_ISSTRUCT (sig->ret))
11135 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11138 mono_mb_emit_byte (mb, CEE_RET);
11141 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11148 * mono_marshal_free_dynamic_wrappers:
11150 * Free wrappers of the dynamic method METHOD.
11153 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11155 MonoImage *image = method->klass->image;
11157 g_assert (method_is_dynamic (method));
11159 /* This could be called during shutdown */
11160 if (marshal_mutex_initialized)
11161 mono_marshal_lock ();
11163 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11164 * they could be shared with other methods ?
11166 if (image->runtime_invoke_direct_cache)
11167 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11168 if (image->delegate_abstract_invoke_cache)
11169 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11170 // FIXME: Need to clear the caches in other images as well
11171 if (image->delegate_bound_static_invoke_cache)
11172 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11174 if (marshal_mutex_initialized)
11175 mono_marshal_unlock ();
11179 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11181 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11182 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11184 return mono_metadata_signature_equal (pair->sig, sig);
11188 * mono_marshal_free_inflated_wrappers:
11190 * Free wrappers of the inflated method METHOD.
11193 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11195 MonoMethodSignature *sig = method->signature;
11197 g_assert (method->is_inflated);
11199 /* Ignore calls occuring late during cleanup. */
11200 if (!marshal_mutex_initialized)
11203 mono_marshal_lock ();
11205 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11206 * they could be shared with other methods ?
11210 * indexed by MonoMethodSignature
11212 /* FIXME: This could remove unrelated wrappers as well */
11213 if (sig && method->klass->image->delegate_begin_invoke_cache)
11214 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11215 if (sig && method->klass->image->delegate_end_invoke_cache)
11216 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11217 if (sig && method->klass->image->delegate_invoke_cache)
11218 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11219 if (sig && method->klass->image->runtime_invoke_cache)
11220 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11221 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11222 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11225 * indexed by SignaturePointerPair
11227 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11228 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11229 signature_pointer_pair_matches_signature, (gpointer)sig);
11232 * indexed by MonoMethod pointers
11234 if (method->klass->image->runtime_invoke_direct_cache)
11235 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11236 if (method->klass->image->managed_wrapper_cache)
11237 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11238 if (method->klass->image->native_wrapper_cache)
11239 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11240 if (method->klass->image->remoting_invoke_cache)
11241 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11242 if (method->klass->image->synchronized_cache)
11243 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11244 if (method->klass->image->unbox_wrapper_cache)
11245 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11246 if (method->klass->image->cominterop_invoke_cache)
11247 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11248 if (method->klass->image->cominterop_wrapper_cache)
11249 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11250 if (method->klass->image->thunk_invoke_cache)
11251 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11252 if (method->klass->image->native_func_wrapper_aot_cache)
11253 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11255 mono_marshal_unlock ();