2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
14 #include "metadata/marshal.h"
15 #include "metadata/tabledefs.h"
16 #include "metadata/exception.h"
17 #include "metadata/appdomain.h"
18 #include "mono/metadata/debug-helpers.h"
19 #include "mono/metadata/threadpool.h"
20 #include "mono/metadata/threads.h"
21 #include "mono/metadata/monitor.h"
22 #include "mono/metadata/metadata-internals.h"
26 /* #define DEBUG_RUNTIME_CODE */
28 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
32 #include "mono/cil/opcode.def"
37 struct _MonoMethodBuilder {
41 guint32 code_size, pos;
46 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
49 mono_find_method_by_name (MonoClass *klass, const char *name, int param_count)
51 MonoMethod *res = NULL;
54 for (i = 0; i < klass->method.count; ++i) {
55 if (klass->methods [i]->name[0] == name [0] &&
56 !strcmp (name, klass->methods [i]->name) &&
57 klass->methods [i]->signature->param_count == param_count) {
58 res = klass->methods [i];
65 #ifdef DEBUG_RUNTIME_CODE
67 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
69 return g_strdup (" ");
72 static MonoDisHelper marshal_dh = {
82 /* This mutex protects the various marshalling related caches in MonoImage */
83 static CRITICAL_SECTION marshal_mutex;
85 /* Maps wrapper methods to the methods they wrap */
86 static MonoGHashTable *wrapper_hash;
88 static guint32 last_error_tls_id;
91 mono_marshal_init (void)
93 static gboolean module_initialized = FALSE;
95 if (!module_initialized) {
96 module_initialized = TRUE;
97 InitializeCriticalSection (&marshal_mutex);
98 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
99 last_error_tls_id = TlsAlloc ();
104 mono_delegate_to_ftnptr (MonoDelegate *delegate)
106 MonoMethod *method, *wrapper, *invoke;
107 MonoMarshalSpec **mspecs;
114 if (delegate->delegate_trampoline)
115 return delegate->delegate_trampoline;
117 klass = ((MonoObject *)delegate)->vtable->klass;
118 g_assert (klass->delegate);
121 method = delegate->method_info->method;
122 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
124 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
125 mono_method_get_marshal_info (invoke, mspecs);
127 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
129 for (i = invoke->signature->param_count; i >= 0; i--)
133 delegate->delegate_trampoline = mono_compile_method (wrapper);
135 return delegate->delegate_trampoline;
139 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
144 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
146 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
148 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
150 /* FIXME: discard the wrapper and call the original method */
151 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
157 mono_array_to_savearray (MonoArray *array)
162 g_assert_not_reached ();
167 mono_array_to_lparray (MonoArray *array)
172 /* fixme: maybe we need to make a copy */
173 return array->vector;
177 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
179 GError *error = NULL;
189 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
191 if (items_written > mono_stringbuilder_capacity (sb))
192 items_written = mono_stringbuilder_capacity (sb);
195 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
196 sb->length = items_written;
198 g_error_free (error);
204 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
211 g_assert (mono_string_chars (sb->str) == text);
213 for (len = 0; text [len] != 0; ++len)
220 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
222 GError *error = NULL;
229 res = g_malloc0 (mono_stringbuilder_capacity (sb) + 1);
231 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
233 g_error_free (error);
234 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
237 memcpy (res, tmp, sb->length + 1);
243 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
248 return mono_string_chars (sb->str);
252 mono_string_to_ansibstr (MonoString *string_obj)
254 g_error ("implement me");
259 mono_string_to_bstr (MonoString *string_obj)
261 g_error ("implement me");
266 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
271 g_assert (dst != NULL);
274 memset (dst, 0, size);
279 s = mono_string_to_utf8 (src);
280 len = MIN (size, strlen (s));
281 memcpy (dst, s, len);
284 *((char *)dst + size - 1) = 0;
288 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
292 g_assert (dst != NULL);
296 memset (dst, 0, size);
300 len = MIN (size, (mono_string_length (src) * 2));
301 memcpy (dst, mono_string_chars (src), len);
303 *((char *)dst + size - 1) = 0;
304 *((char *)dst + size - 2) = 0;
308 mono_mb_free (MonoMethodBuilder *mb)
310 g_list_free (mb->locals_list);
315 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
317 MonoMethodBuilder *mb;
320 g_assert (klass != NULL);
321 g_assert (name != NULL);
323 mb = g_new0 (MonoMethodBuilder, 1);
325 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
328 m->name = g_strdup (name);
330 m->inline_count = -1;
331 m->wrapper_type = type;
334 mb->code = g_malloc (mb->code_size);
340 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
342 int res = mb->locals;
344 g_assert (mb != NULL);
345 g_assert (type != NULL);
347 mb->locals_list = g_list_append (mb->locals_list, type);
354 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
356 MonoMethodHeader *header;
360 g_assert (mb != NULL);
362 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
363 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
368 header->max_stack = max_stack;
370 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
371 header->locals [i] = (MonoType *)l->data;
374 mb->method->signature = signature;
375 header->code = mb->code;
376 header->code_size = mb->pos;
377 header->num_locals = mb->locals;
379 #ifdef DEBUG_RUNTIME_CODE
380 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
381 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
388 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
390 MonoMethodWrapper *mw;
392 g_assert (mb != NULL);
394 mw = (MonoMethodWrapper *)mb->method;
396 mw->data = g_list_append (mw->data, data);
398 return g_list_length (mw->data);
402 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
404 mb->code [pos] = value & 0xff;
405 mb->code [pos + 1] = (value >> 8) & 0xff;
406 mb->code [pos + 2] = (value >> 16) & 0xff;
407 mb->code [pos + 3] = (value >> 24) & 0xff;
411 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
413 *((gint8 *)(&mb->code [pos])) = value;
417 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
419 if (mb->pos >= mb->code_size) {
421 mb->code = g_realloc (mb->code, mb->code_size);
424 mb->code [mb->pos++] = op;
428 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
430 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
431 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
434 mono_mb_emit_icon (mb, offset);
435 mono_mb_emit_byte (mb, CEE_ADD);
440 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
443 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
444 mono_mb_emit_byte (mb, CEE_LDIND_I);
445 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
446 mono_mb_emit_byte (mb, CEE_ADD);
447 mono_mb_emit_byte (mb, CEE_LDIND_I);
448 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
449 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
450 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
451 mono_mb_emit_byte (mb, branch_code);
453 mono_mb_emit_i4 (mb, 0);
458 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
460 if ((mb->pos + 4) >= mb->code_size) {
462 mb->code = g_realloc (mb->code, mb->code_size);
465 mono_mb_patch_addr (mb, mb->pos, data);
470 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
472 if ((mb->pos + 2) >= mb->code_size) {
474 mb->code = g_realloc (mb->code, mb->code_size);
477 mb->code [mb->pos] = data & 0xff;
478 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
483 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
485 mono_mb_emit_byte (mb, CEE_LDSTR);
486 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
491 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
494 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
495 } else if (argnum < 256) {
496 mono_mb_emit_byte (mb, CEE_LDARG_S);
497 mono_mb_emit_byte (mb, argnum);
499 mono_mb_emit_byte (mb, CEE_PREFIX1);
500 mono_mb_emit_byte (mb, CEE_LDARG);
501 mono_mb_emit_i2 (mb, argnum);
506 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
509 mono_mb_emit_byte (mb, CEE_LDARGA_S);
510 mono_mb_emit_byte (mb, argnum);
512 mono_mb_emit_byte (mb, CEE_PREFIX1);
513 mono_mb_emit_byte (mb, CEE_LDARGA);
514 mono_mb_emit_i2 (mb, argnum);
519 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
522 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
523 mono_mb_emit_byte (mb, locnum);
525 mono_mb_emit_byte (mb, CEE_PREFIX1);
526 mono_mb_emit_byte (mb, CEE_LDLOCA);
527 mono_mb_emit_i2 (mb, locnum);
532 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
535 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
536 } else if (num < 256) {
537 mono_mb_emit_byte (mb, CEE_LDLOC_S);
538 mono_mb_emit_byte (mb, num);
540 mono_mb_emit_byte (mb, CEE_PREFIX1);
541 mono_mb_emit_byte (mb, CEE_LDLOC);
542 mono_mb_emit_i2 (mb, num);
547 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
550 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
551 } else if (num < 256) {
552 mono_mb_emit_byte (mb, CEE_STLOC_S);
553 mono_mb_emit_byte (mb, num);
555 mono_mb_emit_byte (mb, CEE_PREFIX1);
556 mono_mb_emit_byte (mb, CEE_STLOC);
557 mono_mb_emit_i2 (mb, num);
562 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
564 if (value >= -1 && value < 8) {
565 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
566 } else if (value >= -128 && value <= 127) {
567 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
568 mono_mb_emit_byte (mb, value);
570 mono_mb_emit_byte (mb, CEE_LDC_I4);
571 mono_mb_emit_i4 (mb, value);
576 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
579 mono_mb_emit_byte (mb, op);
581 mono_mb_emit_i4 (mb, 0);
586 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
588 mono_mb_emit_byte (mb, CEE_CALLI);
589 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
593 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
595 mono_mb_emit_byte (mb, CEE_PREFIX1);
596 mono_mb_emit_byte (mb, CEE_LDFTN);
597 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
598 mono_mb_emit_calli (mb, opt_sig ? opt_sig : method->signature);
602 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
604 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
605 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
607 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
608 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
609 mono_mb_emit_calli (mb, sig);
610 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
611 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
615 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
617 /* fixme: we need a better way to throw exception,
618 * supporting several exception types and messages */
619 MonoMethod *ctor = NULL;
621 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
623 mono_class_init (mme);
624 for (i = 0; i < mme->method.count; ++i) {
625 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
626 ctor = mme->methods [i];
631 mono_mb_emit_byte (mb, CEE_NEWOBJ);
632 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
634 mono_mb_emit_byte (mb, CEE_DUP);
635 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
636 mono_mb_emit_ldstr (mb, (char*)msg);
637 mono_mb_emit_byte (mb, CEE_STIND_I);
639 mono_mb_emit_byte (mb, CEE_THROW);
643 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
645 mono_mb_emit_ldloc (mb, local);
646 mono_mb_emit_icon (mb, incr);
647 mono_mb_emit_byte (mb, CEE_ADD);
648 mono_mb_emit_stloc (mb, local);
652 emit_ptr_to_str_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
653 int usize, int msize, MonoMarshalSpec *mspec)
656 case MONO_MARSHAL_CONV_BOOL_I4:
657 mono_mb_emit_byte (mb, CEE_LDLOC_1);
658 mono_mb_emit_byte (mb, CEE_LDLOC_0);
659 mono_mb_emit_byte (mb, CEE_LDIND_I4);
660 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
661 mono_mb_emit_byte (mb, 3);
662 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
663 mono_mb_emit_byte (mb, CEE_BR_S);
664 mono_mb_emit_byte (mb, 1);
665 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
666 mono_mb_emit_byte (mb, CEE_STIND_I1);
668 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
669 mono_mb_emit_byte (mb, CEE_LDLOC_1);
670 mono_mb_emit_byte (mb, CEE_LDLOC_0);
671 mono_mb_emit_byte (mb, CEE_LDIND_I2);
672 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
673 mono_mb_emit_byte (mb, 3);
674 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
675 mono_mb_emit_byte (mb, CEE_BR_S);
676 mono_mb_emit_byte (mb, 1);
677 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
678 mono_mb_emit_byte (mb, CEE_STIND_I1);
680 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
681 MonoClass *eclass = NULL;
684 if (type->type == MONO_TYPE_SZARRAY) {
685 eclass = type->data.klass;
687 g_assert_not_reached ();
690 if (eclass->valuetype)
691 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
693 esize = sizeof (gpointer);
695 /* create a new array */
696 mono_mb_emit_byte (mb, CEE_LDLOC_1);
697 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
698 mono_mb_emit_byte (mb, CEE_NEWARR);
699 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
700 mono_mb_emit_byte (mb, CEE_STIND_I);
702 /* copy the elements */
703 mono_mb_emit_byte (mb, CEE_LDLOC_1);
704 mono_mb_emit_byte (mb, CEE_LDIND_I);
705 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
706 mono_mb_emit_byte (mb, CEE_ADD);
707 mono_mb_emit_byte (mb, CEE_LDLOC_0);
708 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
709 mono_mb_emit_byte (mb, CEE_PREFIX1);
710 mono_mb_emit_byte (mb, CEE_CPBLK);
714 case MONO_MARSHAL_CONV_STR_BYVALSTR:
715 mono_mb_emit_byte (mb, CEE_LDLOC_1);
716 mono_mb_emit_byte (mb, CEE_LDLOC_0);
717 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
718 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
719 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
720 mono_mb_emit_byte (mb, CEE_STIND_I);
722 case MONO_MARSHAL_CONV_STR_LPTSTR:
723 case MONO_MARSHAL_CONV_STR_LPSTR:
724 mono_mb_emit_byte (mb, CEE_LDLOC_1);
725 mono_mb_emit_byte (mb, CEE_LDLOC_0);
726 mono_mb_emit_byte (mb, CEE_LDIND_I);
727 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
728 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
729 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
730 mono_mb_emit_byte (mb, CEE_STIND_I);
732 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
733 MonoClass *klass = mono_class_from_mono_type (type);
734 int src_var, dst_var;
736 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
737 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
739 /* *dst = new object */
740 mono_mb_emit_byte (mb, CEE_LDLOC_1);
741 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
742 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
743 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
744 mono_mb_emit_byte (mb, CEE_STIND_I);
746 /* save the old src pointer */
747 mono_mb_emit_byte (mb, CEE_LDLOC_0);
748 mono_mb_emit_stloc (mb, src_var);
749 /* save the old dst pointer */
750 mono_mb_emit_byte (mb, CEE_LDLOC_1);
751 mono_mb_emit_stloc (mb, dst_var);
753 /* dst = pointer to newly created object data */
754 mono_mb_emit_byte (mb, CEE_LDLOC_1);
755 mono_mb_emit_byte (mb, CEE_LDIND_I);
756 mono_mb_emit_icon (mb, sizeof (MonoObject));
757 mono_mb_emit_byte (mb, CEE_ADD);
758 mono_mb_emit_byte (mb, CEE_STLOC_1);
760 emit_struct_conv (mb, klass, TRUE);
762 /* restore the old src pointer */
763 mono_mb_emit_ldloc (mb, src_var);
764 mono_mb_emit_byte (mb, CEE_STLOC_0);
765 /* restore the old dst pointer */
766 mono_mb_emit_ldloc (mb, dst_var);
767 mono_mb_emit_byte (mb, CEE_STLOC_1);
770 case MONO_MARSHAL_CONV_DEL_FTN: {
771 /* fixme: we never convert functions back to delegates, dont
772 // know if thats the correct behaviour
776 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
777 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
779 case MONO_MARSHAL_CONV_STR_LPWSTR:
780 case MONO_MARSHAL_CONV_STR_BSTR:
781 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
782 case MONO_MARSHAL_CONV_STR_TBSTR:
783 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
784 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
786 g_warning ("marshaling conversion %d not implemented", conv);
787 g_assert_not_reached ();
792 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
793 MonoMarshalSpec *mspec)
798 case MONO_MARSHAL_CONV_BOOL_I4:
799 mono_mb_emit_byte (mb, CEE_LDLOC_1);
800 mono_mb_emit_byte (mb, CEE_LDLOC_0);
801 mono_mb_emit_byte (mb, CEE_LDIND_U1);
802 mono_mb_emit_byte (mb, CEE_STIND_I4);
804 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
805 mono_mb_emit_byte (mb, CEE_LDLOC_1);
806 mono_mb_emit_byte (mb, CEE_LDLOC_0);
807 mono_mb_emit_byte (mb, CEE_LDIND_U1);
808 mono_mb_emit_byte (mb, CEE_NEG);
809 mono_mb_emit_byte (mb, CEE_STIND_I2);
811 case MONO_MARSHAL_CONV_STR_LPWSTR:
812 case MONO_MARSHAL_CONV_STR_LPSTR:
813 case MONO_MARSHAL_CONV_STR_LPTSTR:
814 case MONO_MARSHAL_CONV_STR_BSTR:
815 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
816 case MONO_MARSHAL_CONV_STR_TBSTR:
817 /* free space if free == true */
818 mono_mb_emit_byte (mb, CEE_LDLOC_2);
819 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
820 mono_mb_emit_byte (mb, 4);
821 mono_mb_emit_byte (mb, CEE_LDLOC_1);
822 mono_mb_emit_byte (mb, CEE_LDIND_I);
823 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
824 mono_mb_emit_byte (mb, CEE_MONO_FREE);
826 mono_mb_emit_byte (mb, CEE_LDLOC_1);
827 mono_mb_emit_byte (mb, CEE_LDLOC_0);
828 mono_mb_emit_byte (mb, CEE_LDIND_I);
829 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
830 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
831 mono_mb_emit_byte (mb, conv);
832 mono_mb_emit_byte (mb, CEE_STIND_I);
834 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
835 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
836 case MONO_MARSHAL_CONV_DEL_FTN:
837 mono_mb_emit_byte (mb, CEE_LDLOC_1);
838 mono_mb_emit_byte (mb, CEE_LDLOC_0);
839 mono_mb_emit_byte (mb, CEE_LDIND_I);
840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
841 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
842 mono_mb_emit_byte (mb, conv);
843 mono_mb_emit_byte (mb, CEE_STIND_I);
845 case MONO_MARSHAL_CONV_STR_BYVALSTR:
846 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
850 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
851 mono_mb_emit_byte (mb, CEE_LDLOC_0);
852 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
853 mono_mb_emit_icon (mb, usize);
854 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
855 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
856 mono_mb_emit_byte (mb, conv);
859 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
860 MonoClass *eclass = NULL;
863 if (type->type == MONO_TYPE_SZARRAY) {
864 eclass = type->data.klass;
866 g_assert_not_reached ();
869 if (eclass->valuetype)
870 esize = mono_class_native_size (eclass, NULL);
872 esize = sizeof (gpointer);
877 mono_mb_emit_byte (mb, CEE_LDLOC_0);
878 mono_mb_emit_byte (mb, CEE_LDIND_I);
879 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
881 mono_mb_emit_byte (mb, 0);
883 mono_mb_emit_byte (mb, CEE_LDLOC_1);
884 mono_mb_emit_byte (mb, CEE_LDLOC_0);
885 mono_mb_emit_byte (mb, CEE_LDIND_I);
886 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
887 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
888 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
889 mono_mb_emit_byte (mb, CEE_ADD);
890 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
891 mono_mb_emit_byte (mb, CEE_PREFIX1);
892 mono_mb_emit_byte (mb, CEE_CPBLK);
893 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
896 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
897 int src_var, dst_var;
899 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
900 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
902 mono_mb_emit_byte (mb, CEE_LDLOC_0);
903 mono_mb_emit_byte (mb, CEE_LDIND_I);
904 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
906 mono_mb_emit_byte (mb, 0);
908 /* save the old src pointer */
909 mono_mb_emit_byte (mb, CEE_LDLOC_0);
910 mono_mb_emit_stloc (mb, src_var);
911 /* save the old dst pointer */
912 mono_mb_emit_byte (mb, CEE_LDLOC_1);
913 mono_mb_emit_stloc (mb, dst_var);
915 /* src = pointer to object data */
916 mono_mb_emit_byte (mb, CEE_LDLOC_0);
917 mono_mb_emit_byte (mb, CEE_LDIND_I);
918 mono_mb_emit_icon (mb, sizeof (MonoObject));
919 mono_mb_emit_byte (mb, CEE_ADD);
920 mono_mb_emit_byte (mb, CEE_STLOC_0);
922 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
924 /* restore the old src pointer */
925 mono_mb_emit_ldloc (mb, src_var);
926 mono_mb_emit_byte (mb, CEE_STLOC_0);
927 /* restore the old dst pointer */
928 mono_mb_emit_ldloc (mb, dst_var);
929 mono_mb_emit_byte (mb, CEE_STLOC_1);
931 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
935 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
936 MonoException *exc = mono_get_exception_not_implemented (msg);
939 mono_raise_exception (exc);
945 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
947 MonoMarshalType *info;
951 emit_struct_conv(mb, klass->parent, to_object);
953 info = mono_marshal_load_type_info (klass);
955 if (info->native_size == 0)
958 if (klass->blittable) {
959 int msize = mono_class_value_size (klass, NULL);
960 g_assert (msize == info->native_size);
961 mono_mb_emit_byte (mb, CEE_LDLOC_1);
962 mono_mb_emit_byte (mb, CEE_LDLOC_0);
963 mono_mb_emit_icon (mb, msize);
964 mono_mb_emit_byte (mb, CEE_PREFIX1);
965 mono_mb_emit_byte (mb, CEE_CPBLK);
967 mono_mb_emit_add_to_local (mb, 0, msize);
968 mono_mb_emit_add_to_local (mb, 1, msize);
972 for (i = 0; i < info->num_fields; i++) {
973 MonoMarshalNative ntype;
974 MonoMarshalConv conv;
975 MonoType *ftype = info->fields [i].field->type;
978 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
980 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
983 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
986 msize = klass->instance_size - info->fields [i].field->offset;
987 usize = info->native_size - info->fields [i].offset;
989 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
990 usize = info->fields [i + 1].offset - info->fields [i].offset;
992 if ((msize < 0) || (usize < 0))
993 /* This happens with GC aware auto layout */
994 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
996 g_assert ((msize >= 0) && (usize >= 0));
999 case MONO_MARSHAL_CONV_NONE: {
1002 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1003 ftype->type == MONO_TYPE_U) {
1004 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1005 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1006 mono_mb_emit_byte (mb, CEE_LDIND_I);
1007 mono_mb_emit_byte (mb, CEE_STIND_I);
1016 #if SIZEOF_VOID_P == 4
1019 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1020 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1021 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1022 mono_mb_emit_byte (mb, CEE_STIND_I4);
1026 case MONO_TYPE_BOOLEAN:
1027 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1028 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1029 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1030 mono_mb_emit_byte (mb, CEE_STIND_I1);
1034 case MONO_TYPE_CHAR:
1035 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1036 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1037 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1038 mono_mb_emit_byte (mb, CEE_STIND_I2);
1042 #if SIZEOF_VOID_P == 8
1045 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1046 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1047 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1048 mono_mb_emit_byte (mb, CEE_STIND_I8);
1051 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1052 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1053 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1054 mono_mb_emit_byte (mb, CEE_STIND_R4);
1057 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1058 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1059 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1060 mono_mb_emit_byte (mb, CEE_STIND_R8);
1062 case MONO_TYPE_VALUETYPE:
1063 if (ftype->data.klass->enumtype) {
1064 t = ftype->data.klass->enum_basetype->type;
1067 emit_struct_conv (mb, ftype->data.klass, to_object);
1070 g_warning ("marshaling type %02x not implemented", ftype->type);
1071 g_assert_not_reached ();
1077 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1079 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1083 mono_mb_emit_add_to_local (mb, 0, usize);
1084 mono_mb_emit_add_to_local (mb, 1, msize);
1086 mono_mb_emit_add_to_local (mb, 0, msize);
1087 mono_mb_emit_add_to_local (mb, 1, usize);
1093 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1095 static MonoMethodSignature *state_check_sig = NULL;
1098 if (!state_check_sig) {
1099 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1100 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1101 state_check_sig->pinvoke = 0;
1104 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1105 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1106 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1107 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1108 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1110 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1112 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1115 static MonoAsyncResult *
1116 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1118 MonoMethodMessage *msg;
1119 MonoDelegate *async_callback;
1123 MonoMethod *method = NULL;
1126 g_assert (delegate);
1128 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1130 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1131 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1133 /* If the target is a proxy, make a direct call. Is proxy's work
1134 // to make the call asynchronous.
1136 MonoAsyncResult *ares;
1138 MonoArray *out_args;
1140 method = delegate->method_info->method;
1142 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1143 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1144 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1145 ares->async_delegate = (MonoObject *)delegate;
1146 ares->async_callback = (MonoObject *)async_callback;
1147 msg->async_result = ares;
1148 msg->call_type = CallType_BeginInvoke;
1150 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1155 klass = delegate->object.vtable->klass;
1157 method = mono_get_delegate_invoke (klass);
1158 for (i = 0; i < klass->method.count; ++i) {
1159 if (klass->methods [i]->name[0] == 'B' &&
1160 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1161 method = klass->methods [i];
1166 g_assert (method != NULL);
1168 im = mono_get_delegate_invoke (method->klass);
1169 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1171 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1175 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1177 int i, params_var, tmp_var;
1179 /* allocate local (pointer) *params[] */
1180 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1181 /* allocate local (pointer) tmp */
1182 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1184 /* alloate space on stack to store an array of pointers to the arguments */
1185 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1186 mono_mb_emit_byte (mb, CEE_PREFIX1);
1187 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1188 mono_mb_emit_stloc (mb, params_var);
1191 mono_mb_emit_ldloc (mb, params_var);
1192 mono_mb_emit_stloc (mb, tmp_var);
1194 if (save_this && sig->hasthis) {
1195 mono_mb_emit_ldloc (mb, tmp_var);
1196 mono_mb_emit_ldarg_addr (mb, 0);
1197 mono_mb_emit_byte (mb, CEE_STIND_I);
1198 /* tmp = tmp + sizeof (gpointer) */
1199 if (sig->param_count)
1200 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1204 for (i = 0; i < sig->param_count; i++) {
1205 mono_mb_emit_ldloc (mb, tmp_var);
1206 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1207 mono_mb_emit_byte (mb, CEE_STIND_I);
1208 /* tmp = tmp + sizeof (gpointer) */
1209 if (i < (sig->param_count - 1))
1210 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1217 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1221 GString *res = g_string_new ("");
1224 g_string_append (res, prefix);
1225 g_string_append_c (res, '_');
1228 mono_type_get_desc (res, sig->ret, FALSE);
1230 for (i = 0; i < sig->param_count; ++i) {
1231 g_string_append_c (res, '_');
1232 mono_type_get_desc (res, sig->params [i], FALSE);
1235 g_string_free (res, FALSE);
1240 * mono_marshal_get_string_encoding:
1242 * Return the string encoding which should be used for a given parameter.
1244 static MonoMarshalNative
1245 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1247 /* First try the parameter marshal info */
1249 if (spec->native == MONO_NATIVE_LPARRAY) {
1250 if (spec->data.array_data.elem_type != 0)
1251 return spec->data.array_data.elem_type;
1254 return spec->native;
1258 return MONO_NATIVE_LPSTR;
1260 /* Then try the method level marshal info */
1261 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1262 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1263 return MONO_NATIVE_LPSTR;
1264 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1265 return MONO_NATIVE_LPWSTR;
1266 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1267 return MONO_NATIVE_LPTSTR;
1269 return MONO_NATIVE_LPSTR;
1273 static MonoMarshalNative
1274 mono_marshal_get_stringbuilder_to_ptr_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1276 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1279 case MONO_NATIVE_LPWSTR:
1280 return MONO_MARSHAL_CONV_SB_LPWSTR;
1282 case MONO_NATIVE_LPSTR:
1283 return MONO_MARSHAL_CONV_SB_LPSTR;
1285 case MONO_NATIVE_LPTSTR:
1286 return MONO_MARSHAL_CONV_SB_LPTSTR;
1293 static MonoMarshalNative
1294 mono_marshal_get_ptr_to_stringbuilder_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
1296 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1301 case MONO_NATIVE_LPWSTR:
1303 * mono_string_builder_to_utf16 does not allocate a
1304 * new buffer, so no need to free it.
1307 return MONO_MARSHAL_CONV_LPWSTR_SB;
1308 case MONO_NATIVE_LPSTR:
1309 return MONO_MARSHAL_CONV_LPSTR_SB;
1311 case MONO_NATIVE_LPTSTR:
1312 return MONO_MARSHAL_CONV_LPTSTR_SB;
1319 static inline MonoMethod*
1320 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1324 EnterCriticalSection (&marshal_mutex);
1325 res = g_hash_table_lookup (cache, key);
1326 LeaveCriticalSection (&marshal_mutex);
1330 /* Create the method from the builder and place it in the cache */
1331 static inline MonoMethod*
1332 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1333 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1338 EnterCriticalSection (&marshal_mutex);
1339 res = g_hash_table_lookup (cache, key);
1341 /* This does not acquire any locks */
1342 res = mono_mb_create_method (mb, sig, max_stack);
1343 g_hash_table_insert (cache, key, res);
1344 mono_g_hash_table_insert (wrapper_hash, res, key);
1347 /* Somebody created it before us */
1349 LeaveCriticalSection (&marshal_mutex);
1355 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1359 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1362 EnterCriticalSection (&marshal_mutex);
1363 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1364 LeaveCriticalSection (&marshal_mutex);
1366 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1367 /* See mono_marshal_get_remoting_invoke_with_check */
1368 return (MonoMethod*)((char*)res - 1);
1374 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1376 MonoMethodSignature *sig;
1377 static MonoMethodSignature *csig = NULL;
1378 MonoMethodBuilder *mb;
1384 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1385 !strcmp (method->name, "BeginInvoke"));
1387 sig = method->signature;
1389 cache = method->klass->image->delegate_begin_invoke_cache;
1390 if ((res = mono_marshal_find_in_cache (cache, sig)))
1393 g_assert (sig->hasthis);
1396 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1398 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1399 csig->ret = &mono_defaults.object_class->byval_arg;
1400 csig->params [0] = &mono_defaults.object_class->byval_arg;
1401 csig->params [1] = &mono_defaults.int_class->byval_arg;
1404 name = mono_signature_to_name (sig, "begin_invoke");
1405 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1408 mb->method->save_lmf = 1;
1410 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1412 mono_mb_emit_ldarg (mb, 0);
1413 mono_mb_emit_ldloc (mb, params_var);
1414 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1415 emit_thread_interrupt_checkpoint (mb);
1416 mono_mb_emit_byte (mb, CEE_RET);
1418 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1424 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1426 MonoDomain *domain = mono_domain_get ();
1427 MonoAsyncResult *ares;
1428 MonoMethod *method = NULL;
1429 MonoMethodSignature *sig;
1430 MonoMethodMessage *msg;
1431 MonoObject *res, *exc;
1432 MonoArray *out_args;
1436 g_assert (delegate);
1438 if (!delegate->method_info || !delegate->method_info->method)
1439 g_assert_not_reached ();
1441 klass = delegate->object.vtable->klass;
1443 for (i = 0; i < klass->method.count; ++i) {
1444 if (klass->methods [i]->name[0] == 'E' &&
1445 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1446 method = klass->methods [i];
1451 g_assert (method != NULL);
1453 sig = method->signature;
1455 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1457 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1460 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1461 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1462 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1463 mono_message_init (domain, msg, delegate->method_info, NULL);
1464 msg->call_type = CallType_EndInvoke;
1465 msg->async_result = ares;
1466 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1469 res = mono_thread_pool_finish (ares, &out_args, &exc);
1472 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1474 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1476 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1478 mono_raise_exception ((MonoException*)exc);
1481 mono_method_return_message_restore (method, params, out_args);
1486 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1488 if (return_type->byref)
1489 return_type = &mono_defaults.int_class->byval_arg;
1490 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1491 return_type = return_type->data.klass->enum_basetype;
1493 switch (return_type->type) {
1494 case MONO_TYPE_VOID:
1495 g_assert_not_reached ();
1498 case MONO_TYPE_STRING:
1499 case MONO_TYPE_CLASS:
1500 case MONO_TYPE_OBJECT:
1501 case MONO_TYPE_ARRAY:
1502 case MONO_TYPE_SZARRAY:
1506 case MONO_TYPE_BOOLEAN:
1507 mono_mb_emit_byte (mb, CEE_UNBOX);
1508 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1509 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1512 mono_mb_emit_byte (mb, CEE_UNBOX);
1513 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1514 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1517 case MONO_TYPE_CHAR:
1518 mono_mb_emit_byte (mb, CEE_UNBOX);
1519 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1520 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1523 mono_mb_emit_byte (mb, CEE_UNBOX);
1524 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1525 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1529 mono_mb_emit_byte (mb, CEE_UNBOX);
1530 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1531 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 mono_mb_emit_byte (mb, CEE_UNBOX);
1535 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1536 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1539 mono_mb_emit_byte (mb, CEE_UNBOX);
1540 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1541 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1545 mono_mb_emit_byte (mb, CEE_UNBOX);
1546 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1547 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1550 mono_mb_emit_byte (mb, CEE_UNBOX);
1551 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1552 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1555 mono_mb_emit_byte (mb, CEE_UNBOX);
1556 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1557 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1559 case MONO_TYPE_VALUETYPE: {
1561 mono_mb_emit_byte (mb, CEE_UNBOX);
1562 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1563 mono_mb_emit_i4 (mb, class);
1564 mono_mb_emit_byte (mb, CEE_LDOBJ);
1565 mono_mb_emit_i4 (mb, class);
1569 g_warning ("type 0x%x not handled", return_type->type);
1570 g_assert_not_reached ();
1573 mono_mb_emit_byte (mb, CEE_RET);
1577 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1579 MonoMethodSignature *sig;
1580 static MonoMethodSignature *csig = NULL;
1581 MonoMethodBuilder *mb;
1587 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1588 !strcmp (method->name, "EndInvoke"));
1590 sig = method->signature;
1592 cache = method->klass->image->delegate_end_invoke_cache;
1593 if ((res = mono_marshal_find_in_cache (cache, sig)))
1596 g_assert (sig->hasthis);
1599 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1601 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1602 csig->ret = &mono_defaults.object_class->byval_arg;
1603 csig->params [0] = &mono_defaults.object_class->byval_arg;
1604 csig->params [1] = &mono_defaults.int_class->byval_arg;
1607 name = mono_signature_to_name (sig, "end_invoke");
1608 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1611 mb->method->save_lmf = 1;
1613 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1615 mono_mb_emit_ldarg (mb, 0);
1616 mono_mb_emit_ldloc (mb, params_var);
1617 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1618 emit_thread_interrupt_checkpoint (mb);
1620 if (sig->ret->type == MONO_TYPE_VOID) {
1621 mono_mb_emit_byte (mb, CEE_POP);
1622 mono_mb_emit_byte (mb, CEE_RET);
1624 mono_mb_emit_restore_result (mb, sig->ret);
1626 res = mono_mb_create_and_cache (cache, sig,
1627 mb, sig, sig->param_count + 16);
1634 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1636 MonoMethodMessage *msg;
1637 MonoTransparentProxy *this;
1638 MonoObject *res, *exc;
1639 MonoArray *out_args;
1641 this = *((MonoTransparentProxy **)params [0]);
1644 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1646 /* skip the this pointer */
1649 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1652 MonoMethodSignature *sig = method->signature;
1653 int count = sig->param_count;
1654 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1656 for (i=0; i<count; i++) {
1657 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1658 if (class->valuetype) {
1659 if (sig->params [i]->byref)
1660 mparams[i] = *((gpointer *)params [i]);
1662 mparams[i] = params [i];
1664 mparams[i] = *((gpointer**)params [i]);
1668 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
1671 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1673 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1676 mono_raise_exception ((MonoException *)exc);
1678 mono_method_return_message_restore (method, params, out_args);
1684 mono_marshal_get_remoting_invoke (MonoMethod *method)
1686 MonoMethodSignature *sig;
1687 static MonoMethodSignature *csig = NULL;
1688 MonoMethodBuilder *mb;
1695 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1698 sig = method->signature;
1700 /* we cant remote methods without this pointer */
1704 cache = method->klass->image->remoting_invoke_cache;
1705 if ((res = mono_marshal_find_in_cache (cache, method)))
1709 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1710 csig->params [0] = &mono_defaults.int_class->byval_arg;
1711 csig->params [1] = &mono_defaults.int_class->byval_arg;
1712 csig->ret = &mono_defaults.object_class->byval_arg;
1716 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1717 mb->method->save_lmf = 1;
1719 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1721 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1722 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1723 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1724 mono_mb_emit_ldloc (mb, params_var);
1725 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1726 emit_thread_interrupt_checkpoint (mb);
1728 if (sig->ret->type == MONO_TYPE_VOID) {
1729 mono_mb_emit_byte (mb, CEE_POP);
1730 mono_mb_emit_byte (mb, CEE_RET);
1732 mono_mb_emit_restore_result (mb, sig->ret);
1735 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1742 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1744 MonoMethodSignature *sig;
1745 MonoMethodBuilder *mb;
1746 MonoMethod *res, *native;
1752 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1755 sig = method->signature;
1757 /* we cant remote methods without this pointer */
1758 g_assert (sig->hasthis);
1760 cache = method->klass->image->remoting_invoke_cache;
1761 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1764 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1766 mono_mb_emit_ldarg (mb, 0);
1767 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1769 native = mono_marshal_get_remoting_invoke (method);
1771 for (i = 0; i <= sig->param_count; i++)
1772 mono_mb_emit_ldarg (mb, i);
1774 mono_mb_emit_managed_call (mb, native, native->signature);
1775 mono_mb_emit_byte (mb, CEE_RET);
1777 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1779 for (i = 0; i <= sig->param_count; i++)
1780 mono_mb_emit_ldarg (mb, i);
1782 mono_mb_emit_managed_call (mb, method, method->signature);
1783 mono_mb_emit_byte (mb, CEE_RET);
1785 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1786 mb, sig, sig->param_count + 16);
1793 * the returned method invokes all methods in a multicast delegate
1796 mono_marshal_get_delegate_invoke (MonoMethod *method)
1798 MonoMethodSignature *sig, *static_sig;
1800 MonoMethodBuilder *mb;
1806 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1807 !strcmp (method->name, "Invoke"));
1809 sig = method->signature;
1811 cache = method->klass->image->delegate_invoke_cache;
1812 if ((res = mono_marshal_find_in_cache (cache, sig)))
1815 static_sig = mono_metadata_signature_dup (sig);
1816 static_sig->hasthis = 0;
1818 name = mono_signature_to_name (sig, "invoke");
1819 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1822 /* allocate local 0 (object) */
1823 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1825 g_assert (sig->hasthis);
1829 * prev.Invoke( args .. );
1830 * return this.<target>( args .. );
1833 /* this wrapper can be used in unmanaged-managed transitions */
1834 emit_thread_interrupt_checkpoint (mb);
1836 /* get this->prev */
1837 mono_mb_emit_ldarg (mb, 0);
1838 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
1839 mono_mb_emit_byte (mb, CEE_LDIND_I );
1840 mono_mb_emit_stloc (mb, 0);
1842 /* if prev != null */
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_byte (mb, CEE_BRFALSE);
1847 mono_mb_emit_i4 (mb, 0);
1850 mono_mb_emit_ldloc (mb, 0);
1851 for (i = 0; i < sig->param_count; i++)
1852 mono_mb_emit_ldarg (mb, i + 1);
1853 mono_mb_emit_managed_call (mb, method, method->signature);
1854 if (sig->ret->type != MONO_TYPE_VOID)
1855 mono_mb_emit_byte (mb, CEE_POP);
1857 /* continued or prev == null */
1858 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1860 /* get this->target */
1861 mono_mb_emit_ldarg (mb, 0);
1862 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
1863 mono_mb_emit_byte (mb, CEE_LDIND_I );
1864 mono_mb_emit_stloc (mb, 0);
1866 /* if target != null */
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_BRFALSE);
1870 mono_mb_emit_i4 (mb, 0);
1872 /* then call this->method_ptr nonstatic */
1873 mono_mb_emit_ldloc (mb, 0);
1874 for (i = 0; i < sig->param_count; ++i)
1875 mono_mb_emit_ldarg (mb, i + 1);
1876 mono_mb_emit_ldarg (mb, 0);
1877 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1878 mono_mb_emit_byte (mb, CEE_LDIND_I );
1879 mono_mb_emit_byte (mb, CEE_CALLI);
1880 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
1882 mono_mb_emit_byte (mb, CEE_BR);
1884 mono_mb_emit_i4 (mb, 0);
1886 /* else [target == null] call this->method_ptr static */
1887 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1889 for (i = 0; i < sig->param_count; ++i)
1890 mono_mb_emit_ldarg (mb, i + 1);
1891 mono_mb_emit_ldarg (mb, 0);
1892 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1893 mono_mb_emit_byte (mb, CEE_LDIND_I );
1894 mono_mb_emit_byte (mb, CEE_CALLI);
1895 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
1898 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
1899 mono_mb_emit_byte (mb, CEE_RET);
1901 res = mono_mb_create_and_cache (cache, sig,
1902 mb, sig, sig->param_count + 16);
1910 MonoMethodSignature *sig;
1914 * generates IL code for the runtime invoke function
1915 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
1917 * we also catch exceptions if exc != null
1920 mono_marshal_get_runtime_invoke (MonoMethod *method)
1922 MonoMethodSignature *sig, *csig, *callsig;
1923 MonoExceptionClause *clause;
1924 MonoMethodHeader *header;
1925 MonoMethodBuilder *mb;
1926 GHashTable *cache = NULL;
1927 MonoClass *target_klass;
1928 MonoMethod *res = NULL;
1930 static MonoString *string_dummy = NULL;
1936 target_klass = method->klass;
1938 EnterCriticalSection (&marshal_mutex);
1940 if (method->string_ctor) {
1941 static GSList *strsig_list = NULL;
1945 for (item = strsig_list; item; item = item->next) {
1947 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
1953 callsig = mono_metadata_signature_dup (method->signature);
1954 callsig->ret = &mono_defaults.string_class->byval_arg;
1955 cs = g_new (CtorSigPair, 1);
1958 strsig_list = g_slist_prepend (strsig_list, cs);
1961 callsig = method->signature;
1964 cache = method->klass->image->runtime_invoke_cache;
1966 /* from mono_marshal_find_in_cache */
1967 res = g_hash_table_lookup (cache, callsig);
1968 LeaveCriticalSection (&marshal_mutex);
1974 target_klass = mono_defaults.object_class;
1976 /* to make it work with our special string constructors */
1978 string_dummy = mono_string_new_wrapper ("dummy");
1980 sig = method->signature;
1982 csig = mono_metadata_signature_alloc (method->klass->image, 4);
1984 csig->ret = &mono_defaults.object_class->byval_arg;
1985 csig->params [0] = &mono_defaults.object_class->byval_arg;
1986 csig->params [1] = &mono_defaults.int_class->byval_arg;
1987 csig->params [2] = &mono_defaults.int_class->byval_arg;
1988 csig->params [3] = &mono_defaults.int_class->byval_arg;
1990 name = mono_signature_to_name (callsig, "runtime_invoke");
1991 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
1994 /* allocate local 0 (object) tmp */
1995 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1996 /* allocate local 1 (object) exc */
1997 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1999 /* cond set *exc to null */
2000 mono_mb_emit_byte (mb, CEE_LDARG_2);
2001 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2002 mono_mb_emit_byte (mb, 3);
2003 mono_mb_emit_byte (mb, CEE_LDARG_2);
2004 mono_mb_emit_byte (mb, CEE_LDNULL);
2005 mono_mb_emit_byte (mb, CEE_STIND_I);
2008 if (method->string_ctor) {
2009 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2010 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2011 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
2013 mono_mb_emit_ldarg (mb, 0);
2017 for (i = 0; i < sig->param_count; i++) {
2018 MonoType *t = sig->params [i];
2021 mono_mb_emit_ldarg (mb, 1);
2023 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
2024 mono_mb_emit_byte (mb, CEE_ADD);
2026 mono_mb_emit_byte (mb, CEE_LDIND_I);
2031 type = sig->params [i]->type;
2035 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2037 case MONO_TYPE_BOOLEAN:
2039 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2042 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2045 case MONO_TYPE_CHAR:
2046 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2050 mono_mb_emit_byte (mb, CEE_LDIND_I);
2053 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2056 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2059 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2062 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2066 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2068 case MONO_TYPE_STRING:
2069 case MONO_TYPE_CLASS:
2070 case MONO_TYPE_ARRAY:
2072 case MONO_TYPE_SZARRAY:
2073 case MONO_TYPE_OBJECT:
2076 case MONO_TYPE_VALUETYPE:
2077 if (t->data.klass->enumtype) {
2078 type = t->data.klass->enum_basetype->type;
2081 mono_mb_emit_byte (mb, CEE_LDOBJ);
2082 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2085 g_assert_not_reached ();
2089 mono_mb_emit_ldarg (mb, 3);
2090 mono_mb_emit_calli (mb, callsig);
2092 if (sig->ret->byref) {
2094 g_assert_not_reached ();
2098 switch (sig->ret->type) {
2099 case MONO_TYPE_VOID:
2100 if (!method->string_ctor)
2101 mono_mb_emit_byte (mb, CEE_LDNULL);
2103 case MONO_TYPE_BOOLEAN:
2104 case MONO_TYPE_CHAR:
2117 case MONO_TYPE_VALUETYPE:
2118 /* box value types */
2119 mono_mb_emit_byte (mb, CEE_BOX);
2120 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2122 case MONO_TYPE_STRING:
2123 case MONO_TYPE_CLASS:
2124 case MONO_TYPE_ARRAY:
2125 case MONO_TYPE_SZARRAY:
2126 case MONO_TYPE_OBJECT:
2131 g_assert_not_reached ();
2134 mono_mb_emit_stloc (mb, 0);
2136 mono_mb_emit_byte (mb, CEE_LEAVE);
2138 mono_mb_emit_i4 (mb, 0);
2140 clause = g_new0 (MonoExceptionClause, 1);
2141 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2142 clause->try_len = mb->pos;
2145 clause->token_or_filter = mb->pos;
2147 mono_mb_emit_byte (mb, CEE_POP);
2148 mono_mb_emit_byte (mb, CEE_LDARG_2);
2149 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2150 mono_mb_emit_byte (mb, CEE_PREFIX1);
2151 mono_mb_emit_byte (mb, CEE_CGT_UN);
2152 mono_mb_emit_byte (mb, CEE_PREFIX1);
2153 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2155 clause->handler_offset = mb->pos;
2158 /* store exception */
2159 mono_mb_emit_stloc (mb, 1);
2161 mono_mb_emit_byte (mb, CEE_LDARG_2);
2162 mono_mb_emit_ldloc (mb, 1);
2163 mono_mb_emit_byte (mb, CEE_STIND_I);
2165 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2166 mono_mb_emit_stloc (mb, 0);
2168 mono_mb_emit_byte (mb, CEE_LEAVE);
2169 mono_mb_emit_i4 (mb, 0);
2171 clause->handler_len = mb->pos - clause->handler_offset;
2174 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2175 mono_mb_emit_ldloc (mb, 0);
2176 mono_mb_emit_byte (mb, CEE_RET);
2178 /* taken from mono_mb_create_and_cache */
2179 EnterCriticalSection (&marshal_mutex);
2181 res = g_hash_table_lookup (cache, callsig);
2182 /* Somebody may have created it before us */
2184 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2185 g_hash_table_insert (cache, callsig, res);
2186 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2189 LeaveCriticalSection (&marshal_mutex);
2190 /* end mono_mb_create_and_cache */
2194 header = ((MonoMethodNormal *)res)->header;
2195 header->num_clauses = 1;
2196 header->clauses = clause;
2202 * generates IL code to call managed methods from unmanaged code
2205 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2207 MonoMethodSignature *sig, *csig;
2208 MonoMethodBuilder *mb;
2209 MonoClass *klass = NULL;
2212 int i, pos = 0, *tmp_locals;
2213 static MonoMethodSignature *alloc_sig = NULL;
2216 g_assert (method != NULL);
2217 g_assert (!method->signature->pinvoke);
2219 cache = method->klass->image->managed_wrapper_cache;
2220 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2223 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2225 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2226 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2227 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2228 alloc_sig->pinvoke = 1;
2232 /* fime: howto free that memory ? */
2235 sig = method->signature;
2237 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2239 /* allocate local 0 (pointer) src_ptr */
2240 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2241 /* allocate local 1 (pointer) dst_ptr */
2242 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2243 /* allocate local 2 (boolean) delete_old */
2244 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2246 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2247 /* allocate local 3 to store the return value */
2248 mono_mb_add_local (mb, sig->ret);
2251 mono_mb_emit_icon (mb, 0);
2252 mono_mb_emit_byte (mb, CEE_STLOC_2);
2254 /* we copy the signature, so that we can modify it */
2255 csig = mono_metadata_signature_dup (sig);
2259 #ifdef PLATFORM_WIN32
2261 * Under windows, delegates passed to native code must use the STDCALL
2262 * calling convention.
2264 csig->call_convention = MONO_CALL_STDCALL;
2267 /* fixme: howto handle this ? */
2271 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2272 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2273 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2278 g_assert_not_reached ();
2283 /* we first do all conversions */
2284 tmp_locals = alloca (sizeof (int) * sig->param_count);
2285 for (i = 0; i < sig->param_count; i ++) {
2286 MonoType *t = sig->params [i];
2287 MonoMarshalSpec *spec = mspecs [i + 1];
2291 /* Ensure that we have marshalling info for this param */
2292 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2294 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2297 MonoMethod *marshal_native_to_managed;
2298 MonoMethod *get_instance;
2300 /* FIXME: Call CleanUpNativeData after the call */
2302 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2303 g_assert (mtype != NULL);
2304 mklass = mono_class_from_mono_type (mtype);
2305 g_assert (mklass != NULL);
2307 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2308 g_assert (marshal_native_to_managed);
2309 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2310 g_assert (get_instance);
2313 case MONO_TYPE_CLASS:
2314 case MONO_TYPE_OBJECT:
2315 case MONO_TYPE_STRING:
2316 case MONO_TYPE_ARRAY:
2317 case MONO_TYPE_SZARRAY:
2321 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2323 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2325 mono_mb_emit_byte (mb, CEE_CALL);
2326 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2328 mono_mb_emit_ldarg (mb, i);
2330 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2331 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2333 mono_mb_emit_stloc (mb, tmp_locals [i]);
2336 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2337 g_assert_not_reached ();
2344 case MONO_TYPE_CLASS: {
2345 klass = t->data.klass;
2347 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2349 if (klass->delegate) {
2350 g_assert (!t->byref);
2351 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2352 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2353 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2354 mono_mb_emit_ldarg (mb, i);
2355 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2356 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
2357 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_FTN_DEL);
2358 mono_mb_emit_stloc (mb, tmp_locals [i]);
2362 /* FIXME: Raise a MarshalDirectiveException here */
2363 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2365 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2366 mono_mb_emit_byte (mb, CEE_LDNULL);
2367 mono_mb_emit_stloc (mb, tmp_locals [i]);
2372 mono_mb_emit_ldarg (mb, i);
2376 /* Check for NULL and raise an exception */
2377 mono_mb_emit_byte (mb, CEE_BRTRUE);
2379 mono_mb_emit_i4 (mb, 0);
2381 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2383 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2384 mono_mb_emit_ldarg (mb, i);
2385 mono_mb_emit_byte (mb, CEE_LDIND_I);
2388 mono_mb_emit_byte (mb, CEE_STLOC_0);
2390 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2391 mono_mb_emit_stloc (mb, tmp_locals [i]);
2393 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2394 mono_mb_emit_byte (mb, CEE_BRFALSE);
2396 mono_mb_emit_i4 (mb, 0);
2398 /* Create and set dst */
2399 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2400 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2401 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2402 mono_mb_emit_stloc (mb, tmp_locals [i]);
2403 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2404 mono_mb_emit_icon (mb, sizeof (MonoObject));
2405 mono_mb_emit_byte (mb, CEE_ADD);
2406 mono_mb_emit_byte (mb, CEE_STLOC_1);
2408 /* emit valuetype conversion code */
2409 emit_struct_conv (mb, klass, TRUE);
2411 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2414 case MONO_TYPE_VALUETYPE:
2416 klass = sig->params [i]->data.klass;
2417 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2418 klass->blittable || klass->enumtype)
2421 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2423 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2427 mono_mb_emit_ldarg (mb, i);
2429 mono_mb_emit_ldarg_addr (mb, i);
2430 mono_mb_emit_byte (mb, CEE_STLOC_0);
2433 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2434 mono_mb_emit_byte (mb, CEE_BRFALSE);
2436 mono_mb_emit_i4 (mb, 0);
2439 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2440 mono_mb_emit_byte (mb, CEE_STLOC_1);
2442 /* emit valuetype conversion code */
2443 emit_struct_conv (mb, klass, TRUE);
2446 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2448 case MONO_TYPE_STRING: {
2449 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2454 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2455 csig->params [i] = &mono_defaults.int_class->byval_arg;
2457 mono_mb_emit_ldarg (mb, i);
2458 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2459 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2462 case MONO_NATIVE_LPWSTR:
2463 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
2465 case MONO_NATIVE_LPSTR:
2466 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
2469 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2470 MonoException *exc = mono_get_exception_not_implemented (msg);
2473 mono_raise_exception (exc);
2477 mono_mb_emit_stloc (mb, tmp_locals [i]);
2480 case MONO_TYPE_ARRAY:
2481 case MONO_TYPE_SZARRAY:
2485 klass = mono_class_from_mono_type (t);
2487 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2488 csig->params [i] = &mono_defaults.int_class->byval_arg;
2490 g_warning ("array marshaling not implemented");
2491 g_assert_not_reached ();
2496 for (i = 0; i < sig->param_count; i++) {
2497 MonoType *t = sig->params [i];
2500 case MONO_TYPE_BOOLEAN:
2514 mono_mb_emit_ldarg (mb, i);
2516 case MONO_TYPE_STRING:
2518 mono_mb_emit_ldarg (mb, i);
2520 g_assert (tmp_locals [i]);
2521 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2524 case MONO_TYPE_CLASS:
2526 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2528 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2530 case MONO_TYPE_ARRAY:
2531 case MONO_TYPE_SZARRAY:
2532 case MONO_TYPE_OBJECT:
2534 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2536 mono_mb_emit_ldarg (mb, i);
2538 case MONO_TYPE_VALUETYPE:
2539 klass = sig->params [i]->data.klass;
2540 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2541 klass->blittable || klass->enumtype) {
2542 mono_mb_emit_ldarg (mb, i);
2546 g_assert (tmp_locals [i]);
2548 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2550 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2553 g_warning ("type 0x%02x unknown", t->type);
2554 g_assert_not_reached ();
2558 emit_thread_interrupt_checkpoint (mb);
2559 mono_mb_emit_managed_call (mb, method, NULL);
2561 /* Ensure that we have marshalling info for the return */
2562 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2564 if (!sig->ret->byref) {
2565 switch (sig->ret->type) {
2566 case MONO_TYPE_VOID:
2568 case MONO_TYPE_BOOLEAN:
2582 case MONO_TYPE_OBJECT:
2583 mono_mb_emit_byte (mb, CEE_STLOC_3);
2585 case MONO_TYPE_STRING:
2586 csig->ret = &mono_defaults.int_class->byval_arg;
2588 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2589 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2590 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
2591 mono_mb_emit_byte (mb, CEE_STLOC_3);
2593 case MONO_TYPE_VALUETYPE:
2594 klass = sig->ret->data.klass;
2595 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2596 klass->blittable || klass->enumtype)
2599 /* load pointer to returned value type */
2600 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2601 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2603 /* store the address of the source into local variable 0 */
2604 mono_mb_emit_byte (mb, CEE_STLOC_0);
2605 /* allocate space for the native struct and
2606 * store the address into dst_ptr */
2607 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2608 g_assert (retobj_var);
2609 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2610 mono_mb_emit_byte (mb, CEE_CONV_I);
2611 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2612 emit_thread_interrupt_checkpoint (mb);
2613 mono_mb_emit_byte (mb, CEE_STLOC_1);
2614 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2615 mono_mb_emit_stloc (mb, retobj_var);
2617 /* emit valuetype conversion code */
2618 emit_struct_conv (mb, klass, FALSE);
2620 case MONO_TYPE_CLASS: {
2623 klass = sig->ret->data.klass;
2625 if (klass->delegate) {
2626 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2627 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2628 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
2629 mono_mb_emit_byte (mb, CEE_STLOC_3);
2633 /* FIXME: Raise a MarshalDirectiveException here */
2634 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2636 mono_mb_emit_byte (mb, CEE_STLOC_0);
2637 /* Check for null */
2638 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2639 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2640 mono_mb_emit_byte (mb, CEE_LDNULL);
2641 mono_mb_emit_byte (mb, CEE_STLOC_3);
2642 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2644 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2647 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2648 mono_mb_emit_icon (mb, sizeof (MonoObject));
2649 mono_mb_emit_byte (mb, CEE_ADD);
2650 mono_mb_emit_byte (mb, CEE_STLOC_0);
2652 /* Allocate and set dest */
2653 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2654 mono_mb_emit_byte (mb, CEE_CONV_I);
2655 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2656 emit_thread_interrupt_checkpoint (mb);
2657 mono_mb_emit_byte (mb, CEE_DUP);
2658 mono_mb_emit_byte (mb, CEE_STLOC_1);
2659 mono_mb_emit_byte (mb, CEE_STLOC_3);
2661 emit_struct_conv (mb, klass, FALSE);
2663 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2667 g_warning ("return type 0x%02x unknown", sig->ret->type);
2668 g_assert_not_reached ();
2671 mono_mb_emit_byte (mb, CEE_STLOC_3);
2674 /* Convert byref arguments back */
2675 for (i = 0; i < sig->param_count; i ++) {
2676 MonoType *t = sig->params [i];
2682 case MONO_TYPE_CLASS: {
2685 klass = t->data.klass;
2687 /* Check for null */
2688 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2689 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2690 mono_mb_emit_ldarg (mb, i);
2691 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2692 mono_mb_emit_byte (mb, CEE_STIND_I);
2693 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2695 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2698 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2699 mono_mb_emit_icon (mb, sizeof (MonoObject));
2700 mono_mb_emit_byte (mb, CEE_ADD);
2701 mono_mb_emit_byte (mb, CEE_STLOC_0);
2703 /* Allocate and set dest */
2704 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2705 mono_mb_emit_byte (mb, CEE_CONV_I);
2706 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2707 emit_thread_interrupt_checkpoint (mb);
2708 mono_mb_emit_byte (mb, CEE_STLOC_1);
2710 /* Update argument pointer */
2711 mono_mb_emit_ldarg (mb, i);
2712 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2713 mono_mb_emit_byte (mb, CEE_STIND_I);
2715 /* emit valuetype conversion code */
2716 emit_struct_conv (mb, klass, FALSE);
2718 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2721 case MONO_TYPE_VALUETYPE: {
2724 klass = t->data.klass;
2726 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2727 klass->blittable || klass->enumtype) {
2731 /* Check for null */
2732 mono_mb_emit_ldarg (mb, i);
2733 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2736 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2737 mono_mb_emit_byte (mb, CEE_STLOC_0);
2740 mono_mb_emit_ldarg (mb, i);
2741 mono_mb_emit_byte (mb, CEE_STLOC_1);
2743 /* emit valuetype conversion code */
2744 emit_struct_conv (mb, klass, FALSE);
2746 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2753 mono_mb_emit_ldloc (mb, retobj_var);
2754 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2755 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2756 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2759 if (!MONO_TYPE_IS_VOID(sig->ret))
2760 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2761 mono_mb_emit_byte (mb, CEE_RET);
2765 res = mono_mb_create_and_cache (cache, method,
2766 mb, csig, sig->param_count + 16);
2768 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2771 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
2777 * mono_marshal_get_ldfld_wrapper:
2778 * @type: the type of the field
2780 * This method generates a function which can be use to load a field with type
2781 * @type from an object. The generated function has the following signature:
2782 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
2785 mono_marshal_get_ldfld_wrapper (MonoType *type)
2787 MonoMethodSignature *sig, *csig;
2788 MonoMethodBuilder *mb;
2791 static GHashTable *ldfld_hash = NULL;
2793 int t, pos0, pos1 = 0;
2798 if (type->type == MONO_TYPE_SZARRAY) {
2799 klass = mono_defaults.array_class;
2800 } else if (type->type == MONO_TYPE_VALUETYPE) {
2801 klass = type->data.klass;
2802 if (klass->enumtype) {
2803 t = klass->enum_basetype->type;
2804 klass = mono_class_from_mono_type (klass->enum_basetype);
2806 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2807 t == MONO_TYPE_CLASS) {
2808 klass = mono_defaults.object_class;
2809 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2810 klass = mono_defaults.int_class;
2812 klass = mono_class_from_mono_type (type);
2815 klass = mono_defaults.int_class;
2818 EnterCriticalSection (&marshal_mutex);
2820 ldfld_hash = g_hash_table_new (NULL, NULL);
2821 res = g_hash_table_lookup (ldfld_hash, klass);
2822 LeaveCriticalSection (&marshal_mutex);
2826 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
2827 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
2830 mb->method->save_lmf = 1;
2832 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2833 sig->params [0] = &mono_defaults.object_class->byval_arg;
2834 sig->params [1] = &mono_defaults.int_class->byval_arg;
2835 sig->params [2] = &mono_defaults.int_class->byval_arg;
2836 sig->params [3] = &mono_defaults.int_class->byval_arg;
2837 sig->ret = &klass->byval_arg;
2839 mono_mb_emit_ldarg (mb, 0);
2840 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2842 mono_mb_emit_ldarg (mb, 0);
2843 mono_mb_emit_ldarg (mb, 1);
2844 mono_mb_emit_ldarg (mb, 2);
2846 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
2847 csig->params [0] = &mono_defaults.object_class->byval_arg;
2848 csig->params [1] = &mono_defaults.int_class->byval_arg;
2849 csig->params [2] = &mono_defaults.int_class->byval_arg;
2850 csig->ret = &klass->this_arg;
2853 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
2854 emit_thread_interrupt_checkpoint (mb);
2856 if (klass->valuetype) {
2857 mono_mb_emit_byte (mb, CEE_UNBOX);
2858 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2859 mono_mb_emit_byte (mb, CEE_BR);
2861 mono_mb_emit_i4 (mb, 0);
2863 mono_mb_emit_byte (mb, CEE_RET);
2867 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2869 mono_mb_emit_ldarg (mb, 0);
2870 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2871 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2872 mono_mb_emit_ldarg (mb, 3);
2873 mono_mb_emit_byte (mb, CEE_ADD);
2875 if (klass->valuetype)
2876 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2881 case MONO_TYPE_BOOLEAN:
2882 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2884 case MONO_TYPE_CHAR:
2887 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2891 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2895 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2898 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2901 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2903 case MONO_TYPE_ARRAY:
2905 case MONO_TYPE_FNPTR:
2906 case MONO_TYPE_SZARRAY:
2907 case MONO_TYPE_OBJECT:
2908 case MONO_TYPE_CLASS:
2909 case MONO_TYPE_STRING:
2912 mono_mb_emit_byte (mb, CEE_LDIND_I);
2914 case MONO_TYPE_VALUETYPE:
2915 g_assert (!klass->enumtype);
2916 mono_mb_emit_byte (mb, CEE_LDOBJ);
2917 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2920 g_warning ("type %x not implemented", type->type);
2921 g_assert_not_reached ();
2924 mono_mb_emit_byte (mb, CEE_RET);
2926 res = mono_mb_create_and_cache (ldfld_hash, klass,
2927 mb, sig, sig->param_count + 16);
2934 * mono_marshal_get_stfld_wrapper:
2935 * @type: the type of the field
2937 * This method generates a function which can be use to store a field with type
2938 * @type. The generated function has the following signature:
2939 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
2942 mono_marshal_get_stfld_wrapper (MonoType *type)
2944 MonoMethodSignature *sig, *csig;
2945 MonoMethodBuilder *mb;
2948 static GHashTable *stfld_hash = NULL;
2955 if (type->type == MONO_TYPE_SZARRAY) {
2956 klass = mono_defaults.array_class;
2957 } else if (type->type == MONO_TYPE_VALUETYPE) {
2958 klass = type->data.klass;
2959 if (klass->enumtype) {
2960 t = klass->enum_basetype->type;
2961 klass = mono_class_from_mono_type (klass->enum_basetype);
2963 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2964 t == MONO_TYPE_CLASS) {
2965 klass = mono_defaults.object_class;
2966 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2967 klass = mono_defaults.int_class;
2969 klass = mono_class_from_mono_type (type);
2972 klass = mono_defaults.int_class;
2975 EnterCriticalSection (&marshal_mutex);
2977 stfld_hash = g_hash_table_new (NULL, NULL);
2978 res = g_hash_table_lookup (stfld_hash, klass);
2979 LeaveCriticalSection (&marshal_mutex);
2983 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
2984 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
2987 mb->method->save_lmf = 1;
2989 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
2990 sig->params [0] = &mono_defaults.object_class->byval_arg;
2991 sig->params [1] = &mono_defaults.int_class->byval_arg;
2992 sig->params [2] = &mono_defaults.int_class->byval_arg;
2993 sig->params [3] = &mono_defaults.int_class->byval_arg;
2994 sig->params [4] = &klass->byval_arg;
2995 sig->ret = &mono_defaults.void_class->byval_arg;
2997 mono_mb_emit_ldarg (mb, 0);
2998 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3000 mono_mb_emit_ldarg (mb, 0);
3001 mono_mb_emit_ldarg (mb, 1);
3002 mono_mb_emit_ldarg (mb, 2);
3003 mono_mb_emit_ldarg (mb, 4);
3005 if (klass->valuetype) {
3006 mono_mb_emit_byte (mb, CEE_BOX);
3007 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3010 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3011 csig->params [0] = &mono_defaults.object_class->byval_arg;
3012 csig->params [1] = &mono_defaults.int_class->byval_arg;
3013 csig->params [2] = &mono_defaults.int_class->byval_arg;
3014 csig->params [3] = &klass->this_arg;
3015 csig->ret = &mono_defaults.void_class->byval_arg;
3018 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
3019 emit_thread_interrupt_checkpoint (mb);
3021 mono_mb_emit_byte (mb, CEE_RET);
3023 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3025 mono_mb_emit_ldarg (mb, 0);
3026 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3027 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3028 mono_mb_emit_ldarg (mb, 3);
3029 mono_mb_emit_byte (mb, CEE_ADD);
3030 mono_mb_emit_ldarg (mb, 4);
3035 case MONO_TYPE_BOOLEAN:
3036 mono_mb_emit_byte (mb, CEE_STIND_I1);
3038 case MONO_TYPE_CHAR:
3041 mono_mb_emit_byte (mb, CEE_STIND_I2);
3045 mono_mb_emit_byte (mb, CEE_STIND_I4);
3049 mono_mb_emit_byte (mb, CEE_STIND_I8);
3052 mono_mb_emit_byte (mb, CEE_STIND_R4);
3055 mono_mb_emit_byte (mb, CEE_STIND_R8);
3057 case MONO_TYPE_ARRAY:
3059 case MONO_TYPE_FNPTR:
3060 case MONO_TYPE_SZARRAY:
3061 case MONO_TYPE_OBJECT:
3062 case MONO_TYPE_CLASS:
3063 case MONO_TYPE_STRING:
3066 mono_mb_emit_byte (mb, CEE_STIND_I);
3068 case MONO_TYPE_VALUETYPE:
3069 g_assert (!klass->enumtype);
3070 mono_mb_emit_byte (mb, CEE_STOBJ);
3071 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3074 g_warning ("type %x not implemented", type->type);
3075 g_assert_not_reached ();
3078 mono_mb_emit_byte (mb, CEE_RET);
3080 res = mono_mb_create_and_cache (stfld_hash, klass,
3081 mb, sig, sig->param_count + 16);
3088 * generates IL code for the icall wrapper (the generated method
3089 * calls the unmanaged code in func)
3092 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3094 MonoMethodSignature *csig;
3095 MonoMethodBuilder *mb;
3099 g_assert (sig->pinvoke);
3101 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3103 mb->method->save_lmf = 1;
3105 /* we copy the signature, so that we can modify it */
3108 mono_mb_emit_byte (mb, CEE_LDARG_0);
3110 for (i = 0; i < sig->param_count; i++)
3111 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3113 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3114 emit_thread_interrupt_checkpoint (mb);
3115 mono_mb_emit_byte (mb, CEE_RET);
3117 csig = mono_metadata_signature_dup (sig);
3120 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3127 * mono_marshal_get_native_wrapper:
3128 * @method: The MonoMethod to wrap.
3130 * generates IL code for the pinvoke wrapper (the generated method
3131 * calls the unmanaged code in method->addr)
3134 mono_marshal_get_native_wrapper (MonoMethod *method)
3136 MonoMethodSignature *sig, *csig;
3137 MonoMethodPInvoke *piinfo;
3138 MonoMethodBuilder *mb;
3139 MonoMarshalSpec **mspecs;
3143 gboolean pinvoke = FALSE;
3144 int i, pos, argnum, *tmp_locals;
3146 const char *exc_class = "MissingMethodException";
3147 const char *exc_arg = NULL;
3149 g_assert (method != NULL);
3150 g_assert (method->signature->pinvoke);
3152 cache = method->klass->image->native_wrapper_cache;
3153 if ((res = mono_marshal_find_in_cache (cache, method)))
3156 sig = method->signature;
3158 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3159 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3162 if (!method->addr) {
3164 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
3166 method->addr = mono_lookup_internal_call (method);
3169 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3171 mb->method->save_lmf = 1;
3173 piinfo = (MonoMethodPInvoke *)method;
3175 if (!method->addr) {
3176 mono_mb_emit_exception (mb, exc_class, exc_arg);
3177 csig = mono_metadata_signature_dup (sig);
3179 res = mono_mb_create_and_cache (cache, method,
3180 mb, csig, csig->param_count + 16);
3185 /* internal calls: we simply push all arguments and call the method (no conversions) */
3186 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3188 /* hack - string constructors returns a value */
3189 if (method->string_ctor) {
3190 csig = mono_metadata_signature_dup (sig);
3191 csig->ret = &mono_defaults.string_class->byval_arg;
3196 mono_mb_emit_byte (mb, CEE_LDARG_0);
3198 for (i = 0; i < sig->param_count; i++)
3199 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3201 g_assert (method->addr);
3202 mono_mb_emit_native_call (mb, csig, method->addr);
3203 emit_thread_interrupt_checkpoint (mb);
3204 mono_mb_emit_byte (mb, CEE_RET);
3206 csig = mono_metadata_signature_dup (csig);
3208 res = mono_mb_create_and_cache (cache, method,
3209 mb, csig, csig->param_count + 16);
3216 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
3217 mono_method_get_marshal_info (method, mspecs);
3219 /* pinvoke: we need to convert the arguments if necessary */
3221 /* we copy the signature, so that we can set pinvoke to 0 */
3222 csig = mono_metadata_signature_dup (sig);
3225 /* we allocate local for use with emit_struct_conv() */
3226 /* allocate local 0 (pointer) src_ptr */
3227 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3228 /* allocate local 1 (pointer) dst_ptr */
3229 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3230 /* allocate local 2 (boolean) delete_old */
3231 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3233 /* delete_old = FALSE */
3234 mono_mb_emit_icon (mb, 0);
3235 mono_mb_emit_byte (mb, CEE_STLOC_2);
3237 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3238 /* allocate local 3 to store the return value */
3239 mono_mb_add_local (mb, sig->ret);
3242 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3243 /* Return type custom marshaling */
3245 * Since we can't determine the return type of the unmanaged function,
3246 * we assume it returns a pointer, and pass that pointer to
3247 * MarshalNativeToManaged.
3249 csig->ret = &mono_defaults.int_class->byval_arg;
3252 /* we first do all conversions */
3253 tmp_locals = alloca (sizeof (int) * sig->param_count);
3255 for (i = 0; i < sig->param_count; i ++) {
3256 MonoType *t = sig->params [i];
3257 MonoMarshalSpec *spec = mspecs [i + 1];
3259 argnum = i + sig->hasthis;
3262 /* Ensure that we have marshalling info for this param */
3263 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3265 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3268 MonoMethod *marshal_managed_to_native;
3269 MonoMethod *get_instance;
3271 /* FIXME: Call CleanUpNativeData after the call */
3273 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3274 g_assert (mtype != NULL);
3275 mklass = mono_class_from_mono_type (mtype);
3276 g_assert (mklass != NULL);
3278 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3279 g_assert (marshal_managed_to_native);
3280 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3281 g_assert (get_instance);
3284 case MONO_TYPE_CLASS:
3285 case MONO_TYPE_OBJECT:
3286 case MONO_TYPE_STRING:
3287 case MONO_TYPE_ARRAY:
3288 case MONO_TYPE_SZARRAY:
3289 case MONO_TYPE_VALUETYPE:
3293 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3295 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3297 mono_mb_emit_byte (mb, CEE_CALL);
3298 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3300 mono_mb_emit_ldarg (mb, argnum);
3302 if (t->type == MONO_TYPE_VALUETYPE) {
3304 * Since we can't determine the type of the argument, we
3305 * will assume the unmanaged function takes a pointer.
3307 csig->params [i] = &mono_defaults.int_class->byval_arg;
3309 mono_mb_emit_byte (mb, CEE_BOX);
3310 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3313 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3314 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3316 mono_mb_emit_stloc (mb, tmp_locals [i]);
3320 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3321 g_assert_not_reached ();
3327 if (spec && spec->native == MONO_NATIVE_ASANY) {
3328 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3330 g_assert (t->type == MONO_TYPE_OBJECT);
3331 g_assert (!t->byref);
3333 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3334 mono_mb_emit_ldarg (mb, argnum);
3335 mono_mb_emit_icon (mb, encoding);
3336 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3337 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
3338 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ASANY);
3339 mono_mb_emit_stloc (mb, tmp_locals [i]);
3344 case MONO_TYPE_VALUETYPE:
3345 klass = t->data.klass;
3347 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3348 klass->blittable || klass->enumtype)
3351 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3353 /* store the address of the source into local variable 0 */
3355 mono_mb_emit_ldarg (mb, argnum);
3357 mono_mb_emit_ldarg_addr (mb, argnum);
3359 mono_mb_emit_byte (mb, CEE_STLOC_0);
3361 /* allocate space for the native struct and
3362 * store the address into local variable 1 (dest) */
3363 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3364 mono_mb_emit_byte (mb, CEE_PREFIX1);
3365 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3366 mono_mb_emit_stloc (mb, tmp_locals [i]);
3369 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3370 mono_mb_emit_byte (mb, CEE_BRFALSE);
3372 mono_mb_emit_i4 (mb, 0);
3376 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3377 mono_mb_emit_byte (mb, CEE_STLOC_1);
3379 /* emit valuetype conversion code */
3380 emit_struct_conv (mb, klass, FALSE);
3383 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3385 case MONO_TYPE_STRING: {
3386 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3388 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3389 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3392 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3395 mono_mb_emit_ldarg (mb, argnum);
3396 mono_mb_emit_byte (mb, CEE_LDIND_I);
3398 mono_mb_emit_ldarg (mb, argnum);
3401 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3402 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3405 case MONO_NATIVE_LPWSTR:
3406 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPWSTR);
3408 case MONO_NATIVE_LPSTR:
3409 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
3411 case MONO_NATIVE_LPTSTR:
3412 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPTSTR);
3415 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3416 MonoException *exc = mono_get_exception_not_implemented (msg);
3419 mono_raise_exception (exc);
3423 mono_mb_emit_stloc (mb, tmp_locals [i]);
3426 case MONO_TYPE_CLASS:
3427 case MONO_TYPE_OBJECT:
3428 klass = t->data.klass;
3430 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3431 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3433 if (klass->delegate) {
3434 g_assert (!t->byref);
3435 mono_mb_emit_ldarg (mb, argnum);
3436 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3437 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3438 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
3439 mono_mb_emit_stloc (mb, tmp_locals [i]);
3440 } else if (klass == mono_defaults.stringbuilder_class) {
3441 MonoMarshalNative encoding = mono_marshal_get_stringbuilder_to_ptr_encoding (piinfo, spec);
3443 g_assert (!t->byref);
3444 mono_mb_emit_ldarg (mb, argnum);
3445 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3446 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3449 mono_mb_emit_byte (mb, encoding);
3451 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3452 MonoException *exc = mono_get_exception_not_implemented (msg);
3455 mono_raise_exception (exc);
3458 mono_mb_emit_stloc (mb, tmp_locals [i]);
3460 mono_mb_emit_byte (mb, CEE_LDNULL);
3461 mono_mb_emit_stloc (mb, tmp_locals [i]);
3464 /* we dont need any conversions for out parameters */
3465 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3468 mono_mb_emit_ldarg (mb, argnum);
3469 mono_mb_emit_byte (mb, CEE_LDIND_I);
3472 mono_mb_emit_ldarg (mb, argnum);
3473 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3474 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3477 /* store the address of the source into local variable 0 */
3478 mono_mb_emit_byte (mb, CEE_STLOC_0);
3479 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3480 mono_mb_emit_byte (mb, CEE_BRFALSE);
3482 mono_mb_emit_i4 (mb, 0);
3484 /* allocate space for the native struct and store the address */
3485 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3486 mono_mb_emit_byte (mb, CEE_PREFIX1);
3487 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3488 mono_mb_emit_stloc (mb, tmp_locals [i]);
3490 /* set the src_ptr */
3491 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3492 mono_mb_emit_icon (mb, sizeof (MonoObject));
3493 mono_mb_emit_byte (mb, CEE_ADD);
3494 mono_mb_emit_byte (mb, CEE_STLOC_0);
3497 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3498 mono_mb_emit_byte (mb, CEE_STLOC_1);
3500 /* emit valuetype conversion code */
3501 emit_struct_conv (mb, klass, FALSE);
3503 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3507 case MONO_TYPE_ARRAY:
3508 case MONO_TYPE_SZARRAY:
3512 klass = mono_class_from_mono_type (t);
3514 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3515 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3517 if (klass->element_class == mono_defaults.string_class) {
3518 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3520 mono_mb_emit_ldarg (mb, argnum);
3521 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3522 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3525 case MONO_NATIVE_LPWSTR:
3526 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRWLPARRAY);
3528 case MONO_NATIVE_LPSTR:
3529 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY);
3532 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3533 MonoException *exc = mono_get_exception_not_implemented (msg);
3536 mono_raise_exception (exc);
3539 mono_mb_emit_stloc (mb, tmp_locals [i]);
3541 else if (klass->element_class->blittable) {
3542 mono_mb_emit_ldarg (mb, argnum);
3543 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3544 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3546 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ARRAY_LPARRAY);
3547 mono_mb_emit_stloc (mb, tmp_locals [i]);
3551 guint32 label1, label2, label3;
3552 int index_var, dest_ptr, esize;
3553 MonoMarshalNative encoding = mono_marshal_get_stringbuilder_to_ptr_encoding (piinfo, spec);
3555 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3557 eklass = klass->element_class;
3560 mono_mb_emit_ldarg (mb, argnum);
3561 mono_mb_emit_stloc (mb, tmp_locals [i]);
3562 mono_mb_emit_ldarg (mb, argnum);
3563 mono_mb_emit_byte (mb, CEE_BRFALSE);
3565 mono_mb_emit_i4 (mb, 0);
3567 if (eklass == mono_defaults.stringbuilder_class) {
3568 if (encoding == -1) {
3569 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3570 MonoException *exc = mono_get_exception_not_implemented (msg);
3573 mono_raise_exception (exc);
3577 if (eklass == mono_defaults.stringbuilder_class)
3578 esize = sizeof (gpointer);
3580 esize = mono_class_native_size (eklass, NULL);
3582 /* allocate space for the native struct and store the address */
3583 mono_mb_emit_icon (mb, esize);
3584 mono_mb_emit_ldarg (mb, argnum);
3585 mono_mb_emit_byte (mb, CEE_LDLEN);
3586 mono_mb_emit_byte (mb, CEE_MUL);
3587 mono_mb_emit_byte (mb, CEE_PREFIX1);
3588 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3589 mono_mb_emit_stloc (mb, tmp_locals [i]);
3591 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3592 mono_mb_emit_stloc (mb, dest_ptr);
3594 /* Emit marshalling loop */
3595 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3596 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3597 mono_mb_emit_stloc (mb, index_var);
3599 mono_mb_emit_ldloc (mb, index_var);
3600 mono_mb_emit_ldarg (mb, argnum);
3601 mono_mb_emit_byte (mb, CEE_LDLEN);
3602 mono_mb_emit_byte (mb, CEE_BGE);
3604 mono_mb_emit_i4 (mb, 0);
3606 /* Emit marshalling code */
3608 if (eklass == mono_defaults.stringbuilder_class) {
3609 mono_mb_emit_ldloc (mb, dest_ptr);
3610 mono_mb_emit_ldarg (mb, argnum);
3611 mono_mb_emit_ldloc (mb, index_var);
3612 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3613 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3614 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3615 mono_mb_emit_byte (mb, encoding);
3616 mono_mb_emit_byte (mb, CEE_STIND_I);
3619 /* set the src_ptr */
3620 mono_mb_emit_ldarg (mb, argnum);
3621 mono_mb_emit_ldloc (mb, index_var);
3622 mono_mb_emit_byte (mb, CEE_LDELEMA);
3623 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3624 mono_mb_emit_byte (mb, CEE_STLOC_0);
3627 mono_mb_emit_ldloc (mb, dest_ptr);
3628 mono_mb_emit_byte (mb, CEE_STLOC_1);
3630 /* emit valuetype conversion code */
3631 emit_struct_conv (mb, eklass, FALSE);
3634 mono_mb_emit_add_to_local (mb, index_var, 1);
3635 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
3637 mono_mb_emit_byte (mb, CEE_BR);
3638 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3640 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3641 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3645 case MONO_TYPE_BOOLEAN: {
3646 MonoType *local_type;
3647 int variant_bool = 0;
3651 local_type = &mono_defaults.int32_class->byval_arg;
3653 switch (spec->native) {
3654 case MONO_NATIVE_I1:
3655 local_type = &mono_defaults.byte_class->byval_arg;
3657 case MONO_NATIVE_VARIANTBOOL:
3658 local_type = &mono_defaults.int16_class->byval_arg;
3662 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3666 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3667 tmp_locals [i] = mono_mb_add_local (mb, local_type);
3668 mono_mb_emit_ldarg (mb, argnum);
3669 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3671 mono_mb_emit_byte (mb, CEE_NEG);
3672 mono_mb_emit_stloc (mb, tmp_locals [i]);
3678 /* push all arguments */
3681 mono_mb_emit_byte (mb, CEE_LDARG_0);
3683 for (i = 0; i < sig->param_count; i++) {
3684 MonoType *t = sig->params [i];
3685 MonoMarshalSpec *spec = mspecs [i + 1];
3687 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3688 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3691 if (spec && spec->native == MONO_NATIVE_ASANY) {
3692 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3695 argnum = i + sig->hasthis;
3698 case MONO_TYPE_BOOLEAN:
3700 g_assert (tmp_locals [i]);
3701 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3703 mono_mb_emit_ldarg (mb, argnum);
3718 mono_mb_emit_ldarg (mb, argnum);
3720 case MONO_TYPE_VALUETYPE:
3721 klass = sig->params [i]->data.klass;
3722 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3723 klass->blittable || klass->enumtype) {
3724 mono_mb_emit_ldarg (mb, argnum);
3727 g_assert (tmp_locals [i]);
3728 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3730 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3731 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3732 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3735 case MONO_TYPE_STRING:
3736 case MONO_TYPE_CLASS:
3737 case MONO_TYPE_OBJECT:
3738 g_assert (tmp_locals [i]);
3740 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3742 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3744 case MONO_TYPE_CHAR:
3745 /* fixme: dont know how to marshal that. We cant simply
3746 * convert it to a one byte UTF8 character, because an
3747 * unicode character may need more that one byte in UTF8 */
3748 mono_mb_emit_ldarg (mb, argnum);
3750 case MONO_TYPE_ARRAY:
3751 case MONO_TYPE_SZARRAY:
3753 mono_mb_emit_ldarg (mb, argnum);
3755 g_assert (tmp_locals [i]);
3756 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3759 case MONO_TYPE_TYPEDBYREF:
3760 case MONO_TYPE_FNPTR:
3762 g_warning ("type 0x%02x unknown", t->type);
3763 g_assert_not_reached ();
3768 /* call the native method */
3769 mono_mb_emit_native_call (mb, csig, method->addr);
3771 /* Set LastError if needed */
3772 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
3773 MonoMethodSignature *lasterr_sig;
3775 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3776 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
3777 lasterr_sig->pinvoke = 1;
3779 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
3782 /* Ensure that we have marshalling info for the return */
3783 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3785 /* convert the result */
3786 if (!sig->ret->byref) {
3787 MonoMarshalSpec *spec = mspecs [0];
3788 type = sig->ret->type;
3790 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3793 MonoMethod *marshal_native_to_managed;
3794 MonoMethod *get_instance;
3796 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3797 g_assert (mtype != NULL);
3798 mklass = mono_class_from_mono_type (mtype);
3799 g_assert (mklass != NULL);
3801 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3802 g_assert (marshal_native_to_managed);
3803 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3804 g_assert (get_instance);
3807 case MONO_TYPE_CLASS:
3808 case MONO_TYPE_OBJECT:
3809 case MONO_TYPE_STRING:
3810 case MONO_TYPE_ARRAY:
3811 case MONO_TYPE_SZARRAY:
3812 case MONO_TYPE_VALUETYPE:
3813 if (type == MONO_TYPE_VALUETYPE) {
3814 /* local 3 can't hold a pointer */
3815 mono_mb_emit_byte (mb, CEE_STLOC_0);
3818 mono_mb_emit_byte (mb, CEE_STLOC_3);
3820 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3822 mono_mb_emit_byte (mb, CEE_CALL);
3823 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3825 if (type == MONO_TYPE_VALUETYPE)
3826 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3828 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3830 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3831 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3833 if (type == MONO_TYPE_VALUETYPE) {
3834 mono_mb_emit_byte (mb, CEE_UNBOX);
3835 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3837 mono_mb_emit_byte (mb, CEE_STLOC_3);
3840 g_warning ("custom marshalling of type %x is currently not supported", type);
3841 g_assert_not_reached ();
3848 case MONO_TYPE_VOID:
3863 /* no conversions necessary */
3864 mono_mb_emit_byte (mb, CEE_STLOC_3);
3866 case MONO_TYPE_BOOLEAN:
3867 /* maybe we need to make sure that it fits within 8 bits */
3868 mono_mb_emit_byte (mb, CEE_STLOC_3);
3870 case MONO_TYPE_VALUETYPE:
3871 klass = sig->ret->data.klass;
3872 if (klass->enumtype) {
3873 type = sig->ret->data.klass->enum_basetype->type;
3877 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3879 mono_mb_emit_byte (mb, CEE_STLOC_3);
3882 /* load pointer to returned value type */
3883 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3884 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3885 /* store the address of the source into local variable 0 */
3886 mono_mb_emit_byte (mb, CEE_STLOC_0);
3888 mono_mb_emit_ldloc_addr (mb, 3);
3889 mono_mb_emit_byte (mb, CEE_STLOC_1);
3891 /* emit valuetype conversion code */
3892 emit_struct_conv (mb, sig->ret->data.klass, TRUE);
3894 case MONO_TYPE_STRING:
3895 mono_mb_emit_byte (mb, CEE_STLOC_0);
3896 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3898 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3899 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3901 switch (spec->native) {
3902 case MONO_NATIVE_LPWSTR:
3903 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
3906 g_warning ("marshalling conversion not implemented");
3907 g_assert_not_reached ();
3910 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3912 mono_mb_emit_byte (mb, CEE_STLOC_3);
3914 /* free the string */
3915 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3916 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3917 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3919 case MONO_TYPE_CLASS:
3920 case MONO_TYPE_OBJECT:
3921 klass = sig->ret->data.klass;
3924 mono_mb_emit_byte (mb, CEE_STLOC_0);
3926 mono_mb_emit_byte (mb, CEE_LDNULL);
3927 mono_mb_emit_byte (mb, CEE_STLOC_3);
3930 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3931 mono_mb_emit_byte (mb, CEE_BRFALSE);
3933 mono_mb_emit_i4 (mb, 0);
3935 /* allocate result object */
3937 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3938 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3939 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3940 mono_mb_emit_byte (mb, CEE_STLOC_3);
3944 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3945 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3946 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3947 mono_mb_emit_icon (mb, sizeof (MonoObject));
3948 mono_mb_emit_byte (mb, CEE_ADD);
3949 mono_mb_emit_byte (mb, CEE_STLOC_1);
3951 /* emit conversion code */
3952 emit_struct_conv (mb, klass, TRUE);
3954 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3956 case MONO_TYPE_ARRAY:
3957 case MONO_TYPE_SZARRAY:
3958 /* fixme: we need conversions here */
3959 mono_mb_emit_byte (mb, CEE_STLOC_3);
3961 case MONO_TYPE_CHAR:
3962 /* fixme: we need conversions here */
3963 mono_mb_emit_byte (mb, CEE_STLOC_3);
3965 case MONO_TYPE_TYPEDBYREF:
3966 case MONO_TYPE_FNPTR:
3968 g_warning ("return type 0x%02x unknown", sig->ret->type);
3969 g_assert_not_reached ();
3973 mono_mb_emit_byte (mb, CEE_STLOC_3);
3977 * Need to call this after converting the result since MONO_VTADDR needs
3978 * to be adjacent to the call instruction.
3980 emit_thread_interrupt_checkpoint (mb);
3982 /* we need to convert byref arguments back and free string arrays */
3983 for (i = 0; i < sig->param_count; i++) {
3984 MonoType *t = sig->params [i];
3985 MonoMarshalSpec *spec = mspecs [i + 1];
3987 argnum = i + sig->hasthis;
3989 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3992 MonoMethod *get_instance;
3993 MonoMethod *cleanup_native;
3995 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3996 g_assert (mtype != NULL);
3997 mklass = mono_class_from_mono_type (mtype);
3998 g_assert (mklass != NULL);
4000 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
4001 g_assert (get_instance);
4002 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
4003 g_assert (get_instance);
4006 case MONO_TYPE_CLASS:
4007 case MONO_TYPE_OBJECT:
4008 case MONO_TYPE_STRING:
4009 case MONO_TYPE_ARRAY:
4010 case MONO_TYPE_SZARRAY:
4011 case MONO_TYPE_VALUETYPE:
4012 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
4014 mono_mb_emit_byte (mb, CEE_CALL);
4015 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
4017 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4019 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4020 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
4025 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4026 g_assert_not_reached ();
4032 if (spec && spec->native == MONO_NATIVE_ASANY) {
4033 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
4035 mono_mb_emit_ldarg (mb, argnum);
4036 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4037 mono_mb_emit_icon (mb, encoding);
4038 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4039 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
4040 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ASANY);
4045 case MONO_TYPE_STRING:
4046 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4047 mono_mb_emit_ldarg (mb, argnum);
4048 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4049 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4050 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
4051 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
4052 mono_mb_emit_byte (mb, CEE_STIND_I);
4054 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4055 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4056 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4059 case MONO_TYPE_CLASS:
4060 case MONO_TYPE_OBJECT:
4061 if (t->data.klass == mono_defaults.stringbuilder_class) {
4063 MonoMarshalNative encoding;
4065 encoding = mono_marshal_get_ptr_to_stringbuilder_encoding (piinfo, spec, &need_free);
4067 g_assert (!t->byref);
4068 g_assert (encoding != -1);
4070 mono_mb_emit_ldarg (mb, argnum);
4071 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4072 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4073 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4075 mono_mb_emit_byte (mb, encoding);
4078 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4079 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4080 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4085 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4088 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4089 /* allocate a new object new object */
4090 mono_mb_emit_ldarg (mb, argnum);
4091 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4092 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4093 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4094 mono_mb_emit_byte (mb, CEE_STIND_I);
4097 /* dst = *argument */
4098 mono_mb_emit_ldarg (mb, argnum);
4101 mono_mb_emit_byte (mb, CEE_LDIND_I);
4103 mono_mb_emit_byte (mb, CEE_STLOC_1);
4105 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4106 mono_mb_emit_byte (mb, CEE_BRFALSE);
4108 mono_mb_emit_i4 (mb, 0);
4110 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4111 mono_mb_emit_icon (mb, sizeof (MonoObject));
4112 mono_mb_emit_byte (mb, CEE_ADD);
4113 mono_mb_emit_byte (mb, CEE_STLOC_1);
4115 /* src = tmp_locals [i] */
4116 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4117 mono_mb_emit_byte (mb, CEE_STLOC_0);
4119 /* emit valuetype conversion code */
4120 emit_struct_conv (mb, klass, TRUE);
4122 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4124 case MONO_TYPE_VALUETYPE:
4128 klass = t->data.klass;
4129 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4130 klass->blittable || klass->enumtype)
4133 /* dst = argument */
4134 mono_mb_emit_ldarg (mb, argnum);
4135 mono_mb_emit_byte (mb, CEE_STLOC_1);
4137 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4138 mono_mb_emit_byte (mb, CEE_BRFALSE);
4140 mono_mb_emit_i4 (mb, 0);
4142 /* src = tmp_locals [i] */
4143 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4144 mono_mb_emit_byte (mb, CEE_STLOC_0);
4146 /* emit valuetype conversion code */
4147 emit_struct_conv (mb, klass, TRUE);
4149 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4151 case MONO_TYPE_SZARRAY:
4155 klass = mono_class_from_mono_type (t);
4157 if (klass->element_class == mono_defaults.string_class) {
4158 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4159 g_assert (tmp_locals [i]);
4161 mono_mb_emit_ldarg (mb, argnum);
4162 mono_mb_emit_byte (mb, CEE_BRFALSE);
4164 mono_mb_emit_i4 (mb, 0);
4166 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4169 case MONO_NATIVE_LPWSTR:
4171 * The array elements point to the managed string data so
4172 * they don't need to be freed.
4174 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4175 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4178 mono_mb_emit_ldarg (mb, argnum);
4179 mono_mb_emit_byte (mb, CEE_LDLEN);
4180 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4181 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4182 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ARRAY);
4186 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4189 /* Character arrays are implicitly marshalled as [Out] */
4190 if ((klass->element_class == mono_defaults.char_class) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4191 /* FIXME: Optimize blittable case */
4193 guint32 label1, label2, label3;
4194 int index_var, src_ptr, esize;
4196 eklass = klass->element_class;
4197 if (eklass == mono_defaults.stringbuilder_class)
4198 esize = sizeof (gpointer);
4200 esize = mono_class_native_size (eklass, NULL);
4201 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4204 mono_mb_emit_ldarg (mb, argnum);
4205 mono_mb_emit_byte (mb, CEE_BRFALSE);
4207 mono_mb_emit_i4 (mb, 0);
4209 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4210 mono_mb_emit_stloc (mb, src_ptr);
4212 /* Emit marshalling loop */
4213 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4214 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4215 mono_mb_emit_stloc (mb, index_var);
4217 mono_mb_emit_ldloc (mb, index_var);
4218 mono_mb_emit_ldarg (mb, argnum);
4219 mono_mb_emit_byte (mb, CEE_LDLEN);
4220 mono_mb_emit_byte (mb, CEE_BGE);
4222 mono_mb_emit_i4 (mb, 0);
4224 /* Emit marshalling code */
4226 if (eklass == mono_defaults.stringbuilder_class) {
4228 MonoMarshalNative encoding = mono_marshal_get_ptr_to_stringbuilder_encoding (piinfo, spec, &need_free);
4230 g_assert (encoding != -1);
4233 mono_mb_emit_ldarg (mb, argnum);
4234 mono_mb_emit_ldloc (mb, index_var);
4235 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4238 mono_mb_emit_ldloc (mb, src_ptr);
4239 mono_mb_emit_byte (mb, CEE_LDIND_I);
4241 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4242 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4244 mono_mb_emit_byte (mb, encoding);
4248 mono_mb_emit_ldloc (mb, src_ptr);
4249 mono_mb_emit_byte (mb, CEE_LDIND_I);
4251 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4252 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4256 /* set the src_ptr */
4257 mono_mb_emit_ldloc (mb, src_ptr);
4258 mono_mb_emit_byte (mb, CEE_STLOC_0);
4261 mono_mb_emit_ldarg (mb, argnum);
4262 mono_mb_emit_ldloc (mb, index_var);
4263 mono_mb_emit_byte (mb, CEE_LDELEMA);
4264 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4265 mono_mb_emit_byte (mb, CEE_STLOC_1);
4267 /* emit valuetype conversion code */
4268 emit_struct_conv (mb, eklass, TRUE);
4271 mono_mb_emit_add_to_local (mb, index_var, 1);
4272 mono_mb_emit_add_to_local (mb, src_ptr, esize);
4274 mono_mb_emit_byte (mb, CEE_BR);
4275 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4277 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4278 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4281 case MONO_TYPE_BOOLEAN:
4284 mono_mb_emit_ldarg (mb, argnum);
4285 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4286 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4287 mono_mb_emit_byte (mb, CEE_NEG);
4288 mono_mb_emit_byte (mb, CEE_STIND_I1);
4292 if (!MONO_TYPE_IS_VOID(sig->ret))
4293 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4295 mono_mb_emit_byte (mb, CEE_RET);
4297 csig = mono_metadata_signature_dup (sig);
4299 res = mono_mb_create_and_cache (cache, method,
4300 mb, csig, csig->param_count + 16);
4303 for (i = sig->param_count; i >= 0; i--)
4304 g_free (mspecs [i]);
4307 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
4313 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4315 static MonoReflectionType *
4316 type_from_handle (MonoType *handle)
4318 MonoDomain *domain = mono_domain_get ();
4319 MonoClass *klass = mono_class_from_mono_type (handle);
4321 MONO_ARCH_SAVE_REGS;
4323 mono_class_init (klass);
4324 return mono_type_get_object (domain, handle);
4328 * mono_marshal_get_isinst:
4329 * @klass: the type of the field
4331 * This method generates a function which can be used to check if an object is
4332 * an instance of the given type, icluding the case where the object is a proxy.
4333 * The generated function has the following signature:
4334 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4337 mono_marshal_get_isinst (MonoClass *klass)
4339 static MonoMethodSignature *isint_sig = NULL;
4340 static GHashTable *isinst_hash = NULL;
4342 int pos_was_ok, pos_failed, pos_end, pos_end2;
4344 MonoMethodBuilder *mb;
4346 EnterCriticalSection (&marshal_mutex);
4348 isinst_hash = g_hash_table_new (NULL, NULL);
4350 res = g_hash_table_lookup (isinst_hash, klass);
4351 LeaveCriticalSection (&marshal_mutex);
4356 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4357 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4358 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4359 isint_sig->pinvoke = 0;
4362 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4363 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4366 mb->method->save_lmf = 1;
4368 /* check if the object is a proxy that needs special cast */
4369 mono_mb_emit_ldarg (mb, 0);
4370 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4371 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4372 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4374 /* The result of MONO_ISINST can be:
4375 0) the type check succeeded
4376 1) the type check did not succeed
4377 2) a CanCastTo call is needed */
4379 mono_mb_emit_byte (mb, CEE_DUP);
4380 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4382 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4383 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4385 /* get the real proxy from the transparent proxy*/
4387 mono_mb_emit_ldarg (mb, 0);
4388 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4389 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4393 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4394 mono_mb_emit_byte (mb, CEE_LDNULL);
4395 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4399 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4400 mono_mb_emit_byte (mb, CEE_POP);
4401 mono_mb_emit_ldarg (mb, 0);
4405 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4406 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4407 mono_mb_emit_byte (mb, CEE_RET);
4409 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4416 * mono_marshal_get_castclass:
4417 * @klass: the type of the field
4419 * This method generates a function which can be used to cast an object to
4420 * an instance of the given type, icluding the case where the object is a proxy.
4421 * The generated function has the following signature:
4422 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4425 mono_marshal_get_castclass (MonoClass *klass)
4427 static MonoMethodSignature *castclass_sig = NULL;
4428 static GHashTable *castclass_hash = NULL;
4430 int pos_was_ok, pos_was_ok2;
4432 MonoMethodBuilder *mb;
4434 EnterCriticalSection (&marshal_mutex);
4435 if (!castclass_hash)
4436 castclass_hash = g_hash_table_new (NULL, NULL);
4438 res = g_hash_table_lookup (castclass_hash, klass);
4439 LeaveCriticalSection (&marshal_mutex);
4443 if (!castclass_sig) {
4444 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4445 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4446 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4447 castclass_sig->pinvoke = 0;
4450 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4451 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4454 mb->method->save_lmf = 1;
4456 /* check if the object is a proxy that needs special cast */
4457 mono_mb_emit_ldarg (mb, 0);
4458 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4459 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4460 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4462 /* The result of MONO_ISINST can be:
4463 0) the cast is valid
4464 1) cast of unknown proxy type
4465 or an exception if the cast is is invalid
4468 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4470 /* get the real proxy from the transparent proxy*/
4472 mono_mb_emit_ldarg (mb, 0);
4473 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4474 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4477 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4480 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4481 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4482 mono_mb_emit_ldarg (mb, 0);
4485 mono_mb_emit_byte (mb, CEE_RET);
4487 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4494 mono_marshal_get_proxy_cancast (MonoClass *klass)
4496 static MonoMethodSignature *from_handle_sig = NULL;
4497 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4498 static MonoMethodSignature *isint_sig = NULL;
4499 static GHashTable *proxy_isinst_hash = NULL;
4501 int pos_failed, pos_end;
4503 MonoMethod *can_cast_to;
4504 MonoMethodDesc *desc;
4505 MonoMethodBuilder *mb;
4507 EnterCriticalSection (&marshal_mutex);
4508 if (!proxy_isinst_hash)
4509 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4511 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4512 LeaveCriticalSection (&marshal_mutex);
4517 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4518 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4519 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4520 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4521 upgrade_proxy_sig->pinvoke = 1;
4523 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4524 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4525 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4527 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4528 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4529 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4530 isint_sig->pinvoke = 0;
4533 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4534 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4537 mb->method->save_lmf = 1;
4539 /* get the real proxy from the transparent proxy*/
4540 mono_mb_emit_ldarg (mb, 0);
4541 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4542 mono_mb_emit_byte (mb, CEE_LDIND_I);
4544 /* get the refletion type from the type handle */
4545 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4546 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4547 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4548 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4550 mono_mb_emit_ldarg (mb, 0);
4552 /* make the call to CanCastTo (type, ob) */
4553 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4554 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4555 g_assert (can_cast_to);
4556 mono_method_desc_free (desc);
4557 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4558 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4561 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4563 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4564 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4565 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4566 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4567 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4568 mono_mb_emit_ldarg (mb, 0);
4570 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4571 emit_thread_interrupt_checkpoint (mb);
4573 mono_mb_emit_ldarg (mb, 0);
4574 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4578 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4579 mono_mb_emit_byte (mb, CEE_LDNULL);
4583 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4584 mono_mb_emit_byte (mb, CEE_RET);
4586 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4593 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4596 klass = mono_class_from_mono_type (rtype->type);
4597 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4598 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4602 * mono_marshal_get_struct_to_ptr:
4605 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4608 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4610 MonoMethodBuilder *mb;
4611 static MonoMethod *stoptr = NULL;
4614 g_assert (klass != NULL);
4616 if (klass->str_to_ptr)
4617 return klass->str_to_ptr;
4620 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4623 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4625 if (klass->blittable) {
4626 mono_mb_emit_byte (mb, CEE_LDARG_1);
4627 mono_mb_emit_byte (mb, CEE_LDARG_0);
4628 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4629 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4630 mono_mb_emit_byte (mb, CEE_PREFIX1);
4631 mono_mb_emit_byte (mb, CEE_CPBLK);
4634 /* allocate local 0 (pointer) src_ptr */
4635 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4636 /* allocate local 1 (pointer) dst_ptr */
4637 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4638 /* allocate local 2 (boolean) delete_old */
4639 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4640 mono_mb_emit_byte (mb, CEE_LDARG_2);
4641 mono_mb_emit_byte (mb, CEE_STLOC_2);
4643 /* initialize src_ptr to point to the start of object data */
4644 mono_mb_emit_byte (mb, CEE_LDARG_0);
4645 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4646 mono_mb_emit_byte (mb, CEE_STLOC_0);
4648 /* initialize dst_ptr */
4649 mono_mb_emit_byte (mb, CEE_LDARG_1);
4650 mono_mb_emit_byte (mb, CEE_STLOC_1);
4652 emit_struct_conv (mb, klass, FALSE);
4655 mono_mb_emit_byte (mb, CEE_RET);
4657 res = mono_mb_create_method (mb, stoptr->signature, 0);
4660 klass->str_to_ptr = res;
4665 * mono_marshal_get_ptr_to_struct:
4668 * generates IL code for PtrToStructure (IntPtr src, object structure)
4671 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4673 MonoMethodBuilder *mb;
4674 static MonoMethod *ptostr = NULL;
4677 g_assert (klass != NULL);
4679 if (klass->ptr_to_str)
4680 return klass->ptr_to_str;
4683 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4686 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4688 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4689 mono_mb_emit_byte (mb, CEE_LDARG_1);
4690 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4691 mono_mb_emit_byte (mb, CEE_LDARG_0);
4692 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4693 mono_mb_emit_byte (mb, CEE_PREFIX1);
4694 mono_mb_emit_byte (mb, CEE_CPBLK);
4697 /* allocate local 0 (pointer) src_ptr */
4698 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4699 /* allocate local 1 (pointer) dst_ptr */
4700 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4702 /* initialize src_ptr to point to the start of object data */
4703 mono_mb_emit_byte (mb, CEE_LDARG_0);
4704 mono_mb_emit_byte (mb, CEE_STLOC_0);
4706 /* initialize dst_ptr */
4707 mono_mb_emit_byte (mb, CEE_LDARG_1);
4708 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4709 mono_mb_emit_byte (mb, CEE_STLOC_1);
4711 emit_struct_conv (mb, klass, TRUE);
4714 mono_mb_emit_byte (mb, CEE_RET);
4716 res = mono_mb_create_method (mb, ptostr->signature, 0);
4719 klass->ptr_to_str = res;
4724 * generates IL code for the synchronized wrapper: the generated method
4725 * calls METHOD while locking 'this' or the parent type.
4728 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
4730 static MonoMethodSignature *from_handle_sig = NULL;
4731 static MonoMethod *enter_method, *exit_method;
4732 MonoMethodSignature *sig;
4733 MonoExceptionClause *clause;
4734 MonoMethodHeader *header;
4735 MonoMethodBuilder *mb;
4738 int i, pos, this_local, ret_local;
4742 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
4745 cache = method->klass->image->synchronized_cache;
4746 if ((res = mono_marshal_find_in_cache (cache, method)))
4749 sig = method->signature;
4751 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
4754 if (!MONO_TYPE_IS_VOID (sig->ret))
4755 ret_local = mono_mb_add_local (mb, sig->ret);
4758 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4760 clause = g_new0 (MonoExceptionClause, 1);
4761 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
4763 if (!enter_method) {
4764 MonoMethodDesc *desc;
4766 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
4767 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4768 g_assert (enter_method);
4769 mono_method_desc_free (desc);
4770 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
4771 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4772 g_assert (exit_method);
4773 mono_method_desc_free (desc);
4776 * GetTypeFromHandle isn't called as a managed method because it has
4777 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
4778 * transformed into something else by the JIT.
4780 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4781 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4782 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4785 /* Push this or the type object */
4786 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
4787 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4788 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4789 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
4790 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4793 mono_mb_emit_ldarg (mb, 0);
4794 mono_mb_emit_stloc (mb, this_local);
4796 /* Call Monitor::Enter() */
4797 mono_mb_emit_ldloc (mb, this_local);
4798 mono_mb_emit_managed_call (mb, enter_method, NULL);
4800 clause->try_offset = mb->pos;
4802 /* Call the method */
4804 mono_mb_emit_ldarg (mb, 0);
4805 for (i = 0; i < sig->param_count; i++)
4806 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
4807 mono_mb_emit_managed_call (mb, method, method->signature);
4808 if (!MONO_TYPE_IS_VOID (sig->ret))
4809 mono_mb_emit_stloc (mb, ret_local);
4811 mono_mb_emit_byte (mb, CEE_LEAVE);
4813 mono_mb_emit_i4 (mb, 0);
4815 clause->try_len = mb->pos - clause->try_offset;
4816 clause->handler_offset = mb->pos;
4818 /* Call Monitor::Exit() */
4819 mono_mb_emit_ldloc (mb, this_local);
4820 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
4821 mono_mb_emit_managed_call (mb, exit_method, NULL);
4822 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
4824 clause->handler_len = mb->pos - clause->handler_offset;
4826 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4827 if (!MONO_TYPE_IS_VOID (sig->ret))
4828 mono_mb_emit_ldloc (mb, ret_local);
4829 mono_mb_emit_byte (mb, CEE_RET);
4831 res = mono_mb_create_and_cache (cache, method,
4832 mb, sig, sig->param_count + 16);
4835 header = ((MonoMethodNormal *)res)->header;
4836 header->num_clauses = 1;
4837 header->clauses = clause;
4842 /* FIXME: on win32 we should probably use GlobalAlloc(). */
4844 mono_marshal_alloc (gpointer size)
4846 MONO_ARCH_SAVE_REGS;
4848 return g_try_malloc ((gulong)size);
4852 mono_marshal_free (gpointer ptr)
4854 MONO_ARCH_SAVE_REGS;
4860 mono_marshal_free_array (gpointer *ptr, int size)
4867 for (i = 0; i < size; i++)
4873 mono_marshal_realloc (gpointer ptr, gpointer size)
4875 MONO_ARCH_SAVE_REGS;
4877 return g_try_realloc (ptr, (gulong)size);
4881 mono_marshal_string_array (MonoArray *array)
4889 len = mono_array_length (array);
4891 result = g_malloc (sizeof (char *) * (len + 1));
4892 for (i = 0; i < len; ++i) {
4893 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4894 result [i] = s ? mono_string_to_utf8 (s): NULL;
4896 /* null terminate the array */
4903 mono_marshal_string_array_to_unicode (MonoArray *array)
4911 len = mono_array_length (array);
4913 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
4914 for (i = 0; i < len; ++i) {
4915 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4916 result [i] = s ? mono_string_chars (s) : NULL;
4918 /* null terminate the array */
4925 * mono_marshal_set_last_error:
4927 * This function is invoked to set the last error value from a P/Invoke call
4928 * which has SetLastError set.
4931 mono_marshal_set_last_error (void)
4934 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
4936 TlsSetValue (last_error_tls_id, (gpointer)errno);
4941 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
4942 gpointer dest, gint32 length)
4947 MONO_ARCH_SAVE_REGS;
4949 MONO_CHECK_ARG_NULL (src);
4950 MONO_CHECK_ARG_NULL (dest);
4952 g_assert (src->obj.vtable->klass->rank == 1);
4953 g_assert (start_index >= 0);
4954 g_assert (length >= 0);
4955 g_assert (start_index + length <= mono_array_length (src));
4957 element_size = mono_array_element_size (src->obj.vtable->klass);
4959 source_addr = mono_array_addr_with_size (src, element_size, start_index);
4961 memcpy (dest, source_addr, length * element_size);
4965 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
4966 MonoArray *dest, gint32 length)
4971 MONO_ARCH_SAVE_REGS;
4973 MONO_CHECK_ARG_NULL (src);
4974 MONO_CHECK_ARG_NULL (dest);
4976 g_assert (dest->obj.vtable->klass->rank == 1);
4977 g_assert (start_index >= 0);
4978 g_assert (length >= 0);
4979 g_assert (start_index + length <= mono_array_length (dest));
4981 element_size = mono_array_element_size (dest->obj.vtable->klass);
4983 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
4985 memcpy (dest_addr, src, length * element_size);
4988 #if NO_UNALIGNED_ACCESS
4989 #define RETURN_UNALIGNED(type, addr) \
4992 memcpy(&val, p + offset, sizeof(val)); \
4995 #define WRITE_UNALIGNED(type, addr, val) \
4996 memcpy(addr, &val, sizeof(type))
4998 #define RETURN_UNALIGNED(type, addr) \
4999 return *(type*)(p + offset);
5000 #define WRITE_UNALIGNED(type, addr, val) \
5001 (*(type *)(addr) = (val))
5005 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
5009 MONO_ARCH_SAVE_REGS;
5011 RETURN_UNALIGNED(gpointer, p + offset);
5015 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
5019 MONO_ARCH_SAVE_REGS;
5021 return *(unsigned char*)(p + offset);
5025 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
5029 MONO_ARCH_SAVE_REGS;
5031 RETURN_UNALIGNED(gint16, p + offset);
5035 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
5039 MONO_ARCH_SAVE_REGS;
5041 RETURN_UNALIGNED(gint32, p + offset);
5045 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
5049 MONO_ARCH_SAVE_REGS;
5051 RETURN_UNALIGNED(gint64, p + offset);
5055 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
5059 MONO_ARCH_SAVE_REGS;
5061 *(unsigned char*)(p + offset) = val;
5065 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
5069 MONO_ARCH_SAVE_REGS;
5071 WRITE_UNALIGNED(gpointer, p + offset, val);
5075 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5079 MONO_ARCH_SAVE_REGS;
5081 WRITE_UNALIGNED(gint16, p + offset, val);
5085 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5089 MONO_ARCH_SAVE_REGS;
5091 WRITE_UNALIGNED(gint32, p + offset, val);
5095 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5099 MONO_ARCH_SAVE_REGS;
5101 WRITE_UNALIGNED(gint64, p + offset, val);
5105 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5107 MONO_ARCH_SAVE_REGS;
5110 return mono_string_new (mono_domain_get (), "");
5112 return mono_string_new (mono_domain_get (), ptr);
5116 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5118 MONO_ARCH_SAVE_REGS;
5121 return mono_string_new (mono_domain_get (), "");
5123 return mono_string_new_len (mono_domain_get (), ptr, len);
5127 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5129 MonoDomain *domain = mono_domain_get ();
5133 MONO_ARCH_SAVE_REGS;
5136 return mono_string_new (mono_domain_get (), "");
5141 return mono_string_new_utf16 (domain, ptr, len);
5145 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5147 MonoDomain *domain = mono_domain_get ();
5149 MONO_ARCH_SAVE_REGS;
5152 return mono_string_new (mono_domain_get (), "");
5154 return mono_string_new_utf16 (domain, ptr, len);
5158 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5160 MONO_ARCH_SAVE_REGS;
5162 g_warning ("PtrToStringBSTR not implemented");
5163 g_assert_not_reached ();
5169 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5171 MONO_ARCH_SAVE_REGS;
5173 return ((guint32)TlsGetValue (last_error_tls_id));
5177 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5183 MONO_ARCH_SAVE_REGS;
5185 MONO_CHECK_ARG_NULL (rtype);
5188 klass = mono_class_from_mono_type (type);
5189 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5191 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5195 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5196 exc = mono_get_exception_argument ("t", msg);
5198 mono_raise_exception (exc);
5202 return mono_class_native_size (klass, NULL);
5206 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5211 MONO_ARCH_SAVE_REGS;
5213 MONO_CHECK_ARG_NULL (obj);
5214 MONO_CHECK_ARG_NULL (dst);
5216 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5220 pa [2] = &delete_old;
5222 mono_runtime_invoke (method, NULL, pa, NULL);
5226 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5231 MONO_ARCH_SAVE_REGS;
5233 MONO_CHECK_ARG_NULL (src);
5234 MONO_CHECK_ARG_NULL (dst);
5236 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5241 mono_runtime_invoke (method, NULL, pa, NULL);
5245 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5247 MonoDomain *domain = mono_domain_get ();
5250 MONO_ARCH_SAVE_REGS;
5252 MONO_CHECK_ARG_NULL (src);
5253 MONO_CHECK_ARG_NULL (type);
5255 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5257 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5263 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5265 MonoMarshalType *info;
5268 int i, match_index = -1;
5270 MONO_ARCH_SAVE_REGS;
5272 MONO_CHECK_ARG_NULL (type);
5273 MONO_CHECK_ARG_NULL (field_name);
5275 fname = mono_string_to_utf8 (field_name);
5276 klass = mono_class_from_mono_type (type->type);
5278 while(klass && match_index == -1) {
5279 for (i = 0; i < klass->field.count; ++i) {
5280 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5286 if(match_index == -1)
5287 klass = klass->parent;
5292 if(match_index == -1) {
5296 /* Get back original class instance */
5297 klass = mono_class_from_mono_type (type->type);
5299 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5300 exc = mono_get_exception_argument ("fieldName", tmp);
5303 mono_raise_exception ((MonoException*)exc);
5306 info = mono_marshal_load_type_info (klass);
5307 return info->fields [match_index].offset;
5311 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5313 MONO_ARCH_SAVE_REGS;
5315 return mono_string_to_utf8 (string);
5319 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5321 MONO_ARCH_SAVE_REGS;
5326 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5330 mono_struct_delete_old (MonoClass *klass, char *ptr)
5332 MonoMarshalType *info;
5335 info = mono_marshal_load_type_info (klass);
5337 for (i = 0; i < info->num_fields; i++) {
5338 MonoMarshalNative ntype;
5339 MonoMarshalConv conv;
5340 MonoType *ftype = info->fields [i].field->type;
5343 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5346 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5347 klass->unicode, &conv);
5349 cpos = ptr + info->fields [i].offset;
5352 case MONO_MARSHAL_CONV_NONE:
5353 if (MONO_TYPE_ISSTRUCT (ftype)) {
5354 mono_struct_delete_old (ftype->data.klass, cpos);
5358 case MONO_MARSHAL_CONV_STR_LPWSTR:
5359 case MONO_MARSHAL_CONV_STR_LPSTR:
5360 case MONO_MARSHAL_CONV_STR_LPTSTR:
5361 case MONO_MARSHAL_CONV_STR_BSTR:
5362 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5363 case MONO_MARSHAL_CONV_STR_TBSTR:
5364 g_free (*(gpointer *)cpos);
5373 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5377 MONO_ARCH_SAVE_REGS;
5379 MONO_CHECK_ARG_NULL (src);
5380 MONO_CHECK_ARG_NULL (type);
5382 klass = mono_class_from_mono_type (type->type);
5384 mono_struct_delete_old (klass, (char *)src);
5388 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5390 /* FIXME: Call AllocCoTaskMem under windows */
5391 MONO_ARCH_SAVE_REGS;
5393 return g_try_malloc ((gulong)size);
5397 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5399 /* FIXME: Call FreeCoTaskMem under windows */
5400 MONO_ARCH_SAVE_REGS;
5406 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5408 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5412 mono_marshal_load_type_info (MonoClass* klass)
5414 int i, j, count = 0, native_size = 0, min_align = 1;
5415 MonoMarshalType *info;
5418 g_assert (klass != NULL);
5420 if (klass->marshal_info)
5421 return klass->marshal_info;
5424 mono_class_init (klass);
5426 for (i = 0; i < klass->field.count; ++i) {
5427 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5429 if (mono_field_is_deleted (&klass->fields [i]))
5434 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5436 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5437 info->num_fields = count;
5439 /* Try to find a size for this type in metadata */
5440 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5442 if (klass->parent) {
5443 int parent_size = mono_class_native_size (klass->parent, NULL);
5445 /* Add parent size to real size */
5446 native_size += parent_size;
5447 info->native_size = parent_size;
5450 for (j = i = 0; i < klass->field.count; ++i) {
5453 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5456 if (mono_field_is_deleted (&klass->fields [i]))
5458 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5459 mono_metadata_field_info (klass->image, klass->field.first + i,
5460 NULL, NULL, &info->fields [j].mspec);
5462 info->fields [j].field = &klass->fields [i];
5464 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5465 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5466 /* This field is a hack inserted by MCS to empty structures */
5471 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5472 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
5473 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5474 &align, TRUE, klass->unicode);
5475 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5476 min_align = MAX (align, min_align);
5477 info->fields [j].offset = info->native_size;
5478 info->fields [j].offset += align - 1;
5479 info->fields [j].offset &= ~(align - 1);
5480 info->native_size = info->fields [j].offset + size;
5482 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5483 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5484 &align, TRUE, klass->unicode);
5485 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5486 min_align = MAX (align, min_align);
5487 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5488 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
5494 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5495 info->native_size = MAX (native_size, info->native_size);
5498 if (info->native_size & (min_align - 1)) {
5499 info->native_size += min_align - 1;
5500 info->native_size &= ~(min_align - 1);
5503 /* Update the class's blittable info, if the layouts don't match */
5504 if (info->native_size != mono_class_value_size (klass, NULL))
5505 klass->blittable = FALSE;
5507 /* If this is an array type, ensure that we have element info */
5508 if (klass->element_class) {
5509 mono_marshal_load_type_info (klass->element_class);
5512 return klass->marshal_info;
5516 * mono_class_native_size:
5519 * Returns: the native size of an object instance (when marshaled
5520 * to unmanaged code)
5523 mono_class_native_size (MonoClass *klass, guint32 *align)
5526 if (!klass->marshal_info)
5527 mono_marshal_load_type_info (klass);
5530 *align = klass->min_align;
5532 return klass->marshal_info->native_size;
5536 * mono_type_native_stack_size:
5537 * @t: the type to return the size it uses on the stack
5539 * Returns: the number of bytes required to hold an instance of this
5540 * type on the native stack
5543 mono_type_native_stack_size (MonoType *t, gint *align)
5547 g_assert (t != NULL);
5558 case MONO_TYPE_BOOLEAN:
5559 case MONO_TYPE_CHAR:
5568 case MONO_TYPE_STRING:
5569 case MONO_TYPE_OBJECT:
5570 case MONO_TYPE_CLASS:
5571 case MONO_TYPE_SZARRAY:
5573 case MONO_TYPE_FNPTR:
5574 case MONO_TYPE_ARRAY:
5575 case MONO_TYPE_TYPEDBYREF:
5586 case MONO_TYPE_VALUETYPE: {
5589 if (t->data.klass->enumtype)
5590 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
5592 size = mono_class_native_size (t->data.klass, align);
5593 *align = *align + 3;
5603 g_error ("type 0x%02x unknown", t->type);
5608 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
5609 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
5610 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
5611 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
5614 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
5615 gboolean as_field, gboolean unicode)
5617 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
5620 switch (native_type) {
5621 case MONO_NATIVE_BOOLEAN:
5624 case MONO_NATIVE_I1:
5625 case MONO_NATIVE_U1:
5628 case MONO_NATIVE_I2:
5629 case MONO_NATIVE_U2:
5630 case MONO_NATIVE_VARIANTBOOL:
5633 case MONO_NATIVE_I4:
5634 case MONO_NATIVE_U4:
5635 case MONO_NATIVE_ERROR:
5638 case MONO_NATIVE_I8:
5639 case MONO_NATIVE_U8:
5640 *align = ALIGNMENT(guint64);
5642 case MONO_NATIVE_R4:
5645 case MONO_NATIVE_R8:
5646 *align = ALIGNMENT(double);
5648 case MONO_NATIVE_INT:
5649 case MONO_NATIVE_UINT:
5650 case MONO_NATIVE_LPSTR:
5651 case MONO_NATIVE_LPWSTR:
5652 case MONO_NATIVE_LPTSTR:
5653 case MONO_NATIVE_BSTR:
5654 case MONO_NATIVE_ANSIBSTR:
5655 case MONO_NATIVE_TBSTR:
5656 case MONO_NATIVE_LPARRAY:
5657 case MONO_NATIVE_SAFEARRAY:
5658 case MONO_NATIVE_IUNKNOWN:
5659 case MONO_NATIVE_IDISPATCH:
5660 case MONO_NATIVE_INTERFACE:
5661 case MONO_NATIVE_ASANY:
5662 case MONO_NATIVE_FUNC:
5663 case MONO_NATIVE_LPSTRUCT:
5664 *align = ALIGNMENT(gpointer);
5665 return sizeof (gpointer);
5666 case MONO_NATIVE_STRUCT:
5667 klass = mono_class_from_mono_type (type);
5668 return mono_class_native_size (klass, align);
5669 case MONO_NATIVE_BYVALTSTR: {
5670 int esize = unicode ? 2: 1;
5673 return mspec->data.array_data.num_elem * esize;
5675 case MONO_NATIVE_BYVALARRAY: {
5677 klass = mono_class_from_mono_type (type);
5678 esize = mono_class_native_size (klass->element_class, align);
5680 return mspec->data.array_data.num_elem * esize;
5682 case MONO_NATIVE_CUSTOM:
5683 g_assert_not_reached ();
5685 case MONO_NATIVE_CURRENCY:
5686 case MONO_NATIVE_VBBYREFSTR:
5688 g_error ("native type %02x not implemented", native_type);
5691 g_assert_not_reached ();
5696 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
5704 t = &o->vtable->klass->byval_arg;
5711 case MONO_TYPE_BOOLEAN:
5714 case MONO_TYPE_CHAR:
5719 return mono_object_unbox (o);
5721 case MONO_TYPE_STRING:
5722 switch (string_encoding) {
5723 case MONO_NATIVE_LPWSTR:
5724 return mono_string_to_utf16 ((MonoString*)o);
5726 case MONO_NATIVE_LPSTR:
5727 return mono_string_to_utf8 ((MonoString*)o);
5730 g_warning ("marshaling conversion %d not implemented", string_encoding);
5731 g_assert_not_reached ();
5734 case MONO_TYPE_CLASS:
5735 case MONO_TYPE_VALUETYPE: {
5739 MonoBoolean delete_old = FALSE;
5741 klass = t->data.klass;
5743 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
5746 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5747 klass->blittable || klass->enumtype)
5748 return mono_object_unbox (o);
5750 res = g_malloc0 (mono_class_native_size (klass, NULL));
5752 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
5756 pa [2] = &delete_old;
5758 mono_runtime_invoke (method, NULL, pa, NULL);
5764 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
5770 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
5775 /* FIXME: Free embedded data as well */
5780 t = &o->vtable->klass->byval_arg;
5782 case MONO_TYPE_STRING:
5783 switch (string_encoding) {
5784 case MONO_NATIVE_LPWSTR:
5787 case MONO_NATIVE_LPSTR:
5791 g_warning ("marshaling conversion %d not implemented", string_encoding);
5792 g_assert_not_reached ();
5795 case MONO_TYPE_CLASS:
5796 case MONO_TYPE_VALUETYPE: {
5797 klass = t->data.klass;
5799 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5800 klass->blittable || klass->enumtype)