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_marshal_runtime_glist_find_klass (gconstpointer a, gconstpointer b);
52 mono_find_method_by_name (MonoClass *klass, const char *name, int param_count)
54 MonoMethod *res = NULL;
57 for (i = 0; i < klass->method.count; ++i) {
58 if (klass->methods [i]->name[0] == name [0] &&
59 !strcmp (name, klass->methods [i]->name) &&
60 klass->methods [i]->signature->param_count == param_count) {
61 res = klass->methods [i];
68 #ifdef DEBUG_RUNTIME_CODE
70 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
72 return g_strdup (" ");
75 static MonoDisHelper marshal_dh = {
85 /* This mutex protects the various marshalling related caches in MonoImage */
86 static CRITICAL_SECTION marshal_mutex;
88 /* Maps wrapper methods to the methods they wrap */
89 static MonoGHashTable *wrapper_hash;
91 static guint32 last_error_tls_id;
94 mono_marshal_init (void)
96 static gboolean module_initialized = FALSE;
98 if (!module_initialized) {
99 module_initialized = TRUE;
100 InitializeCriticalSection (&marshal_mutex);
101 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
102 last_error_tls_id = TlsAlloc ();
107 mono_delegate_to_ftnptr (MonoDelegate *delegate)
109 MonoMethod *method, *wrapper, *invoke;
110 MonoMarshalSpec **mspecs;
117 if (delegate->delegate_trampoline)
118 return delegate->delegate_trampoline;
120 klass = ((MonoObject *)delegate)->vtable->klass;
121 g_assert (klass->delegate);
124 method = delegate->method_info->method;
125 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
127 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
128 mono_method_get_marshal_info (invoke, mspecs);
130 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
132 for (i = invoke->signature->param_count; i >= 0; i--)
136 delegate->delegate_trampoline = mono_compile_method (wrapper);
138 return delegate->delegate_trampoline;
142 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
147 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
149 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
151 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
153 /* FIXME: discard the wrapper and call the original method */
154 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
160 mono_array_to_savearray (MonoArray *array)
165 g_assert_not_reached ();
170 mono_array_to_lparray (MonoArray *array)
175 /* fixme: maybe we need to make a copy */
176 return array->vector;
180 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
182 GError *error = NULL;
192 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
194 if (items_written > mono_stringbuilder_capacity (sb))
195 items_written = mono_stringbuilder_capacity (sb);
198 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
199 sb->length = items_written;
201 g_error_free (error);
207 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
214 g_assert (mono_string_chars (sb->str) == text);
216 for (len = 0; text [len] != 0; ++len)
223 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
225 GError *error = NULL;
231 res = g_malloc0 (mono_stringbuilder_capacity (sb) + 1);
233 g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
235 g_error_free (error);
236 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
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
775 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
776 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
778 case MONO_MARSHAL_CONV_STR_LPWSTR:
779 case MONO_MARSHAL_CONV_STR_BSTR:
780 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
781 case MONO_MARSHAL_CONV_STR_TBSTR:
782 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
783 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
785 g_warning ("marshaling conversion %d not implemented", conv);
786 g_assert_not_reached ();
791 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
792 MonoMarshalSpec *mspec)
797 case MONO_MARSHAL_CONV_BOOL_I4:
798 mono_mb_emit_byte (mb, CEE_LDLOC_1);
799 mono_mb_emit_byte (mb, CEE_LDLOC_0);
800 mono_mb_emit_byte (mb, CEE_LDIND_U1);
801 mono_mb_emit_byte (mb, CEE_STIND_I4);
803 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
804 mono_mb_emit_byte (mb, CEE_LDLOC_1);
805 mono_mb_emit_byte (mb, CEE_LDLOC_0);
806 mono_mb_emit_byte (mb, CEE_LDIND_U1);
807 mono_mb_emit_byte (mb, CEE_NEG);
808 mono_mb_emit_byte (mb, CEE_STIND_I2);
810 case MONO_MARSHAL_CONV_STR_LPWSTR:
811 case MONO_MARSHAL_CONV_STR_LPSTR:
812 case MONO_MARSHAL_CONV_STR_LPTSTR:
813 case MONO_MARSHAL_CONV_STR_BSTR:
814 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
815 case MONO_MARSHAL_CONV_STR_TBSTR:
816 /* free space if free == true */
817 mono_mb_emit_byte (mb, CEE_LDLOC_2);
818 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
819 mono_mb_emit_byte (mb, 4);
820 mono_mb_emit_byte (mb, CEE_LDLOC_1);
821 mono_mb_emit_byte (mb, CEE_LDIND_I);
822 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
823 mono_mb_emit_byte (mb, CEE_MONO_FREE);
825 mono_mb_emit_byte (mb, CEE_LDLOC_1);
826 mono_mb_emit_byte (mb, CEE_LDLOC_0);
827 mono_mb_emit_byte (mb, CEE_LDIND_I);
828 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
829 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
830 mono_mb_emit_byte (mb, conv);
831 mono_mb_emit_byte (mb, CEE_STIND_I);
833 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
834 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
835 case MONO_MARSHAL_CONV_DEL_FTN:
836 mono_mb_emit_byte (mb, CEE_LDLOC_1);
837 mono_mb_emit_byte (mb, CEE_LDLOC_0);
838 mono_mb_emit_byte (mb, CEE_LDIND_I);
839 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
840 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
841 mono_mb_emit_byte (mb, conv);
842 mono_mb_emit_byte (mb, CEE_STIND_I);
844 case MONO_MARSHAL_CONV_STR_BYVALSTR:
845 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
849 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
850 mono_mb_emit_byte (mb, CEE_LDLOC_0);
851 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
852 mono_mb_emit_icon (mb, usize);
853 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
854 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
855 mono_mb_emit_byte (mb, conv);
858 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
859 MonoClass *eclass = NULL;
862 if (type->type == MONO_TYPE_SZARRAY) {
863 eclass = type->data.klass;
865 g_assert_not_reached ();
868 if (eclass->valuetype)
869 esize = mono_class_native_size (eclass, NULL);
871 esize = sizeof (gpointer);
876 mono_mb_emit_byte (mb, CEE_LDLOC_0);
877 mono_mb_emit_byte (mb, CEE_LDIND_I);
878 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
880 mono_mb_emit_byte (mb, 0);
882 mono_mb_emit_byte (mb, CEE_LDLOC_1);
883 mono_mb_emit_byte (mb, CEE_LDLOC_0);
884 mono_mb_emit_byte (mb, CEE_LDIND_I);
885 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
886 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
887 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
888 mono_mb_emit_byte (mb, CEE_ADD);
889 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
890 mono_mb_emit_byte (mb, CEE_PREFIX1);
891 mono_mb_emit_byte (mb, CEE_CPBLK);
892 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
895 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
896 int src_var, dst_var;
898 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
899 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
901 mono_mb_emit_byte (mb, CEE_LDLOC_0);
902 mono_mb_emit_byte (mb, CEE_LDIND_I);
903 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
905 mono_mb_emit_byte (mb, 0);
907 /* save the old src pointer */
908 mono_mb_emit_byte (mb, CEE_LDLOC_0);
909 mono_mb_emit_stloc (mb, src_var);
910 /* save the old dst pointer */
911 mono_mb_emit_byte (mb, CEE_LDLOC_1);
912 mono_mb_emit_stloc (mb, dst_var);
914 /* src = pointer to object data */
915 mono_mb_emit_byte (mb, CEE_LDLOC_0);
916 mono_mb_emit_byte (mb, CEE_LDIND_I);
917 mono_mb_emit_icon (mb, sizeof (MonoObject));
918 mono_mb_emit_byte (mb, CEE_ADD);
919 mono_mb_emit_byte (mb, CEE_STLOC_0);
921 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
923 /* restore the old src pointer */
924 mono_mb_emit_ldloc (mb, src_var);
925 mono_mb_emit_byte (mb, CEE_STLOC_0);
926 /* restore the old dst pointer */
927 mono_mb_emit_ldloc (mb, dst_var);
928 mono_mb_emit_byte (mb, CEE_STLOC_1);
930 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
934 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
935 MonoException *exc = mono_get_exception_not_implemented (msg);
938 mono_raise_exception (exc);
944 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
946 MonoMarshalType *info;
950 emit_struct_conv(mb, klass->parent, to_object);
952 info = mono_marshal_load_type_info (klass);
954 if (info->native_size == 0)
957 if (klass->blittable) {
958 int msize = mono_class_value_size (klass, NULL);
959 g_assert (msize == info->native_size);
960 mono_mb_emit_byte (mb, CEE_LDLOC_1);
961 mono_mb_emit_byte (mb, CEE_LDLOC_0);
962 mono_mb_emit_icon (mb, msize);
963 mono_mb_emit_byte (mb, CEE_PREFIX1);
964 mono_mb_emit_byte (mb, CEE_CPBLK);
966 mono_mb_emit_add_to_local (mb, 0, msize);
967 mono_mb_emit_add_to_local (mb, 1, msize);
971 for (i = 0; i < info->num_fields; i++) {
972 MonoMarshalNative ntype;
973 MonoMarshalConv conv;
974 MonoType *ftype = info->fields [i].field->type;
977 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
979 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
982 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
985 msize = klass->instance_size - info->fields [i].field->offset;
986 usize = info->native_size - info->fields [i].offset;
988 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
989 usize = info->fields [i + 1].offset - info->fields [i].offset;
991 if ((msize < 0) || (usize < 0))
992 /* This happens with GC aware auto layout */
993 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
995 g_assert ((msize >= 0) && (usize >= 0));
998 case MONO_MARSHAL_CONV_NONE: {
1001 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1002 ftype->type == MONO_TYPE_U) {
1003 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1004 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1005 mono_mb_emit_byte (mb, CEE_LDIND_I);
1006 mono_mb_emit_byte (mb, CEE_STIND_I);
1015 #if SIZEOF_VOID_P == 4
1018 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1019 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1020 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1021 mono_mb_emit_byte (mb, CEE_STIND_I4);
1025 case MONO_TYPE_BOOLEAN:
1026 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1027 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1028 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1029 mono_mb_emit_byte (mb, CEE_STIND_I1);
1033 case MONO_TYPE_CHAR:
1034 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1035 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1036 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1037 mono_mb_emit_byte (mb, CEE_STIND_I2);
1041 #if SIZEOF_VOID_P == 8
1044 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1045 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1046 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1047 mono_mb_emit_byte (mb, CEE_STIND_I8);
1050 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1051 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1052 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1053 mono_mb_emit_byte (mb, CEE_STIND_R4);
1056 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1057 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1058 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1059 mono_mb_emit_byte (mb, CEE_STIND_R8);
1061 case MONO_TYPE_VALUETYPE:
1062 if (ftype->data.klass->enumtype) {
1063 t = ftype->data.klass->enum_basetype->type;
1066 emit_struct_conv (mb, ftype->data.klass, to_object);
1069 g_warning ("marshaling type %02x not implemented", ftype->type);
1070 g_assert_not_reached ();
1076 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1078 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1082 mono_mb_emit_add_to_local (mb, 0, usize);
1083 mono_mb_emit_add_to_local (mb, 1, msize);
1085 mono_mb_emit_add_to_local (mb, 0, msize);
1086 mono_mb_emit_add_to_local (mb, 1, usize);
1092 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1094 static MonoMethodSignature *state_check_sig = NULL;
1097 if (!state_check_sig) {
1098 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1099 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1100 state_check_sig->pinvoke = 0;
1103 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1104 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1105 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1106 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1107 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1109 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1111 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1114 static MonoAsyncResult *
1115 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1117 MonoMethodMessage *msg;
1118 MonoDelegate *async_callback;
1122 MonoMethod *method = NULL;
1125 g_assert (delegate);
1127 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1129 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1130 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1132 // If the target is a proxy, make a direct call. Is proxy's work
1133 // to make the call asynchronous.
1135 MonoAsyncResult *ares;
1137 MonoArray *out_args;
1139 method = delegate->method_info->method;
1141 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1142 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1143 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1144 ares->async_delegate = (MonoObject *)delegate;
1145 ares->async_callback = (MonoObject *)async_callback;
1146 msg->async_result = ares;
1147 msg->call_type = CallType_BeginInvoke;
1149 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1154 klass = delegate->object.vtable->klass;
1156 method = mono_get_delegate_invoke (klass);
1157 for (i = 0; i < klass->method.count; ++i) {
1158 if (klass->methods [i]->name[0] == 'B' &&
1159 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1160 method = klass->methods [i];
1165 g_assert (method != NULL);
1167 im = mono_get_delegate_invoke (method->klass);
1168 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1170 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1174 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1176 int i, params_var, tmp_var;
1178 /* allocate local (pointer) *params[] */
1179 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1180 /* allocate local (pointer) tmp */
1181 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1183 /* alloate space on stack to store an array of pointers to the arguments */
1184 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1185 mono_mb_emit_byte (mb, CEE_PREFIX1);
1186 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1187 mono_mb_emit_stloc (mb, params_var);
1190 mono_mb_emit_ldloc (mb, params_var);
1191 mono_mb_emit_stloc (mb, tmp_var);
1193 if (save_this && sig->hasthis) {
1194 mono_mb_emit_ldloc (mb, tmp_var);
1195 mono_mb_emit_ldarg_addr (mb, 0);
1196 mono_mb_emit_byte (mb, CEE_STIND_I);
1197 /* tmp = tmp + sizeof (gpointer) */
1198 if (sig->param_count)
1199 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1203 for (i = 0; i < sig->param_count; i++) {
1204 mono_mb_emit_ldloc (mb, tmp_var);
1205 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1206 mono_mb_emit_byte (mb, CEE_STIND_I);
1207 /* tmp = tmp + sizeof (gpointer) */
1208 if (i < (sig->param_count - 1))
1209 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1216 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1220 GString *res = g_string_new ("");
1223 g_string_append (res, prefix);
1224 g_string_append_c (res, '_');
1227 mono_type_get_desc (res, sig->ret, FALSE);
1229 for (i = 0; i < sig->param_count; ++i) {
1230 g_string_append_c (res, '_');
1231 mono_type_get_desc (res, sig->params [i], FALSE);
1234 g_string_free (res, FALSE);
1239 * mono_marshal_get_string_encoding:
1241 * Return the string encoding which should be used for a given parameter.
1243 static MonoMarshalNative
1244 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1246 /* First try the parameter marshal info */
1248 if (spec->native == MONO_NATIVE_LPARRAY) {
1249 if (spec->data.array_data.elem_type != 0)
1250 return spec->data.array_data.elem_type;
1253 return spec->native;
1257 return MONO_NATIVE_LPSTR;
1259 /* Then try the method level marshal info */
1260 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1261 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1262 return MONO_NATIVE_LPSTR;
1263 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1264 return MONO_NATIVE_LPWSTR;
1265 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1266 return MONO_NATIVE_LPTSTR;
1268 return MONO_NATIVE_LPSTR;
1272 static inline MonoMethod*
1273 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1277 EnterCriticalSection (&marshal_mutex);
1278 res = g_hash_table_lookup (cache, key);
1279 LeaveCriticalSection (&marshal_mutex);
1283 /* Create the method from the builder and place it in the cache */
1284 static inline MonoMethod*
1285 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1286 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1291 EnterCriticalSection (&marshal_mutex);
1292 res = g_hash_table_lookup (cache, key);
1294 /* This does not acquire any locks */
1295 res = mono_mb_create_method (mb, sig, max_stack);
1296 g_hash_table_insert (cache, key, res);
1297 mono_g_hash_table_insert (wrapper_hash, res, key);
1300 /* Somebody created it before us */
1302 LeaveCriticalSection (&marshal_mutex);
1308 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1312 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1315 EnterCriticalSection (&marshal_mutex);
1316 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1317 LeaveCriticalSection (&marshal_mutex);
1319 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1320 /* See mono_marshal_get_remoting_invoke_with_check */
1321 return (MonoMethod*)((char*)res - 1);
1327 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1329 MonoMethodSignature *sig;
1330 static MonoMethodSignature *csig = NULL;
1331 MonoMethodBuilder *mb;
1337 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1338 !strcmp (method->name, "BeginInvoke"));
1340 sig = method->signature;
1342 cache = method->klass->image->delegate_begin_invoke_cache;
1343 if ((res = mono_marshal_find_in_cache (cache, sig)))
1346 g_assert (sig->hasthis);
1349 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1351 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1352 csig->ret = &mono_defaults.object_class->byval_arg;
1353 csig->params [0] = &mono_defaults.object_class->byval_arg;
1354 csig->params [1] = &mono_defaults.int_class->byval_arg;
1357 name = mono_signature_to_name (sig, "begin_invoke");
1358 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1361 mb->method->save_lmf = 1;
1363 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1365 mono_mb_emit_ldarg (mb, 0);
1366 mono_mb_emit_ldloc (mb, params_var);
1367 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1368 emit_thread_interrupt_checkpoint (mb);
1369 mono_mb_emit_byte (mb, CEE_RET);
1371 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1377 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1379 MonoDomain *domain = mono_domain_get ();
1380 MonoAsyncResult *ares;
1381 MonoMethod *method = NULL;
1382 MonoMethodSignature *sig;
1383 MonoMethodMessage *msg;
1384 MonoObject *res, *exc;
1385 MonoArray *out_args;
1389 g_assert (delegate);
1391 if (!delegate->method_info || !delegate->method_info->method)
1392 g_assert_not_reached ();
1394 klass = delegate->object.vtable->klass;
1396 for (i = 0; i < klass->method.count; ++i) {
1397 if (klass->methods [i]->name[0] == 'E' &&
1398 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1399 method = klass->methods [i];
1404 g_assert (method != NULL);
1406 sig = method->signature;
1408 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1410 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1413 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1414 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1415 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1416 mono_message_init (domain, msg, delegate->method_info, NULL);
1417 msg->call_type = CallType_EndInvoke;
1418 msg->async_result = ares;
1419 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1422 res = mono_thread_pool_finish (ares, &out_args, &exc);
1425 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1427 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1429 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1431 mono_raise_exception ((MonoException*)exc);
1434 mono_method_return_message_restore (method, params, out_args);
1439 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1441 if (return_type->byref)
1442 return_type = &mono_defaults.int_class->byval_arg;
1443 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1444 return_type = return_type->data.klass->enum_basetype;
1446 switch (return_type->type) {
1447 case MONO_TYPE_VOID:
1448 g_assert_not_reached ();
1451 case MONO_TYPE_STRING:
1452 case MONO_TYPE_CLASS:
1453 case MONO_TYPE_OBJECT:
1454 case MONO_TYPE_ARRAY:
1455 case MONO_TYPE_SZARRAY:
1459 case MONO_TYPE_BOOLEAN:
1460 mono_mb_emit_byte (mb, CEE_UNBOX);
1461 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1462 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1465 mono_mb_emit_byte (mb, CEE_UNBOX);
1466 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1467 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1470 case MONO_TYPE_CHAR:
1471 mono_mb_emit_byte (mb, CEE_UNBOX);
1472 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1473 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1476 mono_mb_emit_byte (mb, CEE_UNBOX);
1477 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1478 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1482 mono_mb_emit_byte (mb, CEE_UNBOX);
1483 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1484 mono_mb_emit_byte (mb, CEE_LDIND_I);
1487 mono_mb_emit_byte (mb, CEE_UNBOX);
1488 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1489 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1492 mono_mb_emit_byte (mb, CEE_UNBOX);
1493 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1494 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1498 mono_mb_emit_byte (mb, CEE_UNBOX);
1499 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1500 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1503 mono_mb_emit_byte (mb, CEE_UNBOX);
1504 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1505 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1508 mono_mb_emit_byte (mb, CEE_UNBOX);
1509 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1510 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1512 case MONO_TYPE_VALUETYPE: {
1514 mono_mb_emit_byte (mb, CEE_UNBOX);
1515 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1516 mono_mb_emit_i4 (mb, class);
1517 mono_mb_emit_byte (mb, CEE_LDOBJ);
1518 mono_mb_emit_i4 (mb, class);
1522 g_warning ("type 0x%x not handled", return_type->type);
1523 g_assert_not_reached ();
1526 mono_mb_emit_byte (mb, CEE_RET);
1530 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1532 MonoMethodSignature *sig;
1533 static MonoMethodSignature *csig = NULL;
1534 MonoMethodBuilder *mb;
1540 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1541 !strcmp (method->name, "EndInvoke"));
1543 sig = method->signature;
1545 cache = method->klass->image->delegate_end_invoke_cache;
1546 if ((res = mono_marshal_find_in_cache (cache, sig)))
1549 g_assert (sig->hasthis);
1552 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1554 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1555 csig->ret = &mono_defaults.object_class->byval_arg;
1556 csig->params [0] = &mono_defaults.object_class->byval_arg;
1557 csig->params [1] = &mono_defaults.int_class->byval_arg;
1560 name = mono_signature_to_name (sig, "end_invoke");
1561 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1564 mb->method->save_lmf = 1;
1566 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1568 mono_mb_emit_ldarg (mb, 0);
1569 mono_mb_emit_ldloc (mb, params_var);
1570 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1571 emit_thread_interrupt_checkpoint (mb);
1573 if (sig->ret->type == MONO_TYPE_VOID) {
1574 mono_mb_emit_byte (mb, CEE_POP);
1575 mono_mb_emit_byte (mb, CEE_RET);
1577 mono_mb_emit_restore_result (mb, sig->ret);
1579 res = mono_mb_create_and_cache (cache, sig,
1580 mb, sig, sig->param_count + 16);
1587 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1589 MonoMethodMessage *msg;
1590 MonoTransparentProxy *this;
1591 MonoObject *res, *exc;
1592 MonoArray *out_args;
1594 this = *((MonoTransparentProxy **)params [0]);
1597 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1599 /* skip the this pointer */
1602 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1605 MonoMethodSignature *sig = method->signature;
1606 int count = sig->param_count;
1607 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1609 for (i=0; i<count; i++) {
1610 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1611 if (class->valuetype) {
1612 if (sig->params [i]->byref)
1613 mparams[i] = *((gpointer *)params [i]);
1615 mparams[i] = params [i];
1617 mparams[i] = *((gpointer**)params [i]);
1621 return mono_runtime_invoke (method, this, mparams, NULL);
1624 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1626 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1629 mono_raise_exception ((MonoException *)exc);
1631 mono_method_return_message_restore (method, params, out_args);
1637 mono_marshal_get_remoting_invoke (MonoMethod *method)
1639 MonoMethodSignature *sig;
1640 static MonoMethodSignature *csig = NULL;
1641 MonoMethodBuilder *mb;
1648 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1651 sig = method->signature;
1653 /* we cant remote methods without this pointer */
1657 cache = method->klass->image->remoting_invoke_cache;
1658 if ((res = mono_marshal_find_in_cache (cache, method)))
1662 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1663 csig->params [0] = &mono_defaults.int_class->byval_arg;
1664 csig->params [1] = &mono_defaults.int_class->byval_arg;
1665 csig->ret = &mono_defaults.object_class->byval_arg;
1669 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1670 mb->method->save_lmf = 1;
1672 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1675 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1676 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1677 mono_mb_emit_ldloc (mb, params_var);
1678 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1679 emit_thread_interrupt_checkpoint (mb);
1681 if (sig->ret->type == MONO_TYPE_VOID) {
1682 mono_mb_emit_byte (mb, CEE_POP);
1683 mono_mb_emit_byte (mb, CEE_RET);
1685 mono_mb_emit_restore_result (mb, sig->ret);
1688 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1695 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1697 MonoMethodSignature *sig;
1698 MonoMethodBuilder *mb;
1699 MonoMethod *res, *native;
1705 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1708 sig = method->signature;
1710 /* we cant remote methods without this pointer */
1711 g_assert (sig->hasthis);
1713 cache = method->klass->image->remoting_invoke_cache;
1714 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1717 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1719 mono_mb_emit_ldarg (mb, 0);
1720 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1722 native = mono_marshal_get_remoting_invoke (method);
1724 for (i = 0; i <= sig->param_count; i++)
1725 mono_mb_emit_ldarg (mb, i);
1727 mono_mb_emit_managed_call (mb, native, native->signature);
1728 mono_mb_emit_byte (mb, CEE_RET);
1730 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1732 for (i = 0; i <= sig->param_count; i++)
1733 mono_mb_emit_ldarg (mb, i);
1735 mono_mb_emit_managed_call (mb, method, method->signature);
1736 mono_mb_emit_byte (mb, CEE_RET);
1738 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1739 mb, sig, sig->param_count + 16);
1746 * the returned method invokes all methods in a multicast delegate
1749 mono_marshal_get_delegate_invoke (MonoMethod *method)
1751 MonoMethodSignature *sig, *static_sig;
1753 MonoMethodBuilder *mb;
1759 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1760 !strcmp (method->name, "Invoke"));
1762 sig = method->signature;
1764 cache = method->klass->image->delegate_invoke_cache;
1765 if ((res = mono_marshal_find_in_cache (cache, sig)))
1768 static_sig = mono_metadata_signature_dup (sig);
1769 static_sig->hasthis = 0;
1771 name = mono_signature_to_name (sig, "invoke");
1772 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1775 /* allocate local 0 (object) */
1776 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1778 g_assert (sig->hasthis);
1782 * prev.Invoke( args .. );
1783 * return this.<target>( args .. );
1786 /* this wrapper can be used in unmanaged-managed transitions */
1787 emit_thread_interrupt_checkpoint (mb);
1789 /* get this->prev */
1790 mono_mb_emit_ldarg (mb, 0);
1791 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
1792 mono_mb_emit_byte (mb, CEE_LDIND_I );
1793 mono_mb_emit_stloc (mb, 0);
1795 /* if prev != null */
1796 mono_mb_emit_ldloc (mb, 0);
1797 mono_mb_emit_byte (mb, CEE_BRFALSE);
1800 mono_mb_emit_i4 (mb, 0);
1803 mono_mb_emit_ldloc (mb, 0);
1804 for (i = 0; i < sig->param_count; i++)
1805 mono_mb_emit_ldarg (mb, i + 1);
1806 mono_mb_emit_managed_call (mb, method, method->signature);
1807 if (sig->ret->type != MONO_TYPE_VOID)
1808 mono_mb_emit_byte (mb, CEE_POP);
1810 /* continued or prev == null */
1811 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1813 /* get this->target */
1814 mono_mb_emit_ldarg (mb, 0);
1815 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
1816 mono_mb_emit_byte (mb, CEE_LDIND_I );
1817 mono_mb_emit_stloc (mb, 0);
1819 /* if target != null */
1820 mono_mb_emit_ldloc (mb, 0);
1821 mono_mb_emit_byte (mb, CEE_BRFALSE);
1823 mono_mb_emit_i4 (mb, 0);
1825 /* then call this->method_ptr nonstatic */
1826 mono_mb_emit_ldloc (mb, 0);
1827 for (i = 0; i < sig->param_count; ++i)
1828 mono_mb_emit_ldarg (mb, i + 1);
1829 mono_mb_emit_ldarg (mb, 0);
1830 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1831 mono_mb_emit_byte (mb, CEE_LDIND_I );
1832 mono_mb_emit_byte (mb, CEE_CALLI);
1833 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
1835 mono_mb_emit_byte (mb, CEE_BR);
1837 mono_mb_emit_i4 (mb, 0);
1839 /* else [target == null] call this->method_ptr static */
1840 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1842 for (i = 0; i < sig->param_count; ++i)
1843 mono_mb_emit_ldarg (mb, i + 1);
1844 mono_mb_emit_ldarg (mb, 0);
1845 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1846 mono_mb_emit_byte (mb, CEE_LDIND_I );
1847 mono_mb_emit_byte (mb, CEE_CALLI);
1848 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
1851 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
1852 mono_mb_emit_byte (mb, CEE_RET);
1854 res = mono_mb_create_and_cache (cache, sig,
1855 mb, sig, sig->param_count + 16);
1861 gint mono_marshal_runtime_glist_find_klass (gconstpointer a, gconstpointer b)
1863 return !(((MonoMethod *)a)->klass == ((MonoMethod *)b)->klass);
1867 * generates IL code for the runtime invoke function
1868 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
1870 * we also catch exceptions if exc != null
1873 mono_marshal_get_runtime_invoke (MonoMethod *method)
1875 MonoMethodSignature *sig, *csig, *callsig;
1876 MonoExceptionClause *clause;
1877 MonoMethodHeader *header;
1878 MonoMethodBuilder *mb;
1879 GHashTable *cache = NULL;
1880 MonoClass *target_klass;
1881 MonoMethod *res = NULL;
1882 GSList *list = NULL;
1884 static MonoString *string_dummy = NULL;
1887 gboolean list_lookup = FALSE;
1891 target_klass = method->klass;
1893 if (method->string_ctor) {
1894 static MonoMethodSignature *strsig = NULL;
1896 strsig = mono_metadata_signature_dup (method->signature);
1897 strsig->ret = &mono_defaults.string_class->byval_arg;
1903 callsig = method->signature;
1905 if (method->signature->hasthis && method->klass->valuetype)
1908 cache = method->klass->image->runtime_invoke_cache;
1910 /* from mono_marshal_find_in_cache */
1911 EnterCriticalSection (&marshal_mutex);
1912 list = g_hash_table_lookup (cache, callsig);
1913 LeaveCriticalSection (&marshal_mutex);
1917 return (MonoMethod *)list->data;
1919 /* lookup the wrapper for our class */
1920 item = g_slist_find_custom (list, method->klass, mono_marshal_runtime_glist_find_klass);
1922 return (MonoMethod *)item->data;
1926 /* place runtime_invoke method in object class instead of random class */
1927 target_klass = mono_defaults.object_class;
1929 /* to make it work with our special string constructors */
1931 string_dummy = mono_string_new_wrapper ("dummy");
1933 sig = method->signature;
1935 csig = mono_metadata_signature_alloc (method->klass->image, 4);
1937 csig->ret = &mono_defaults.object_class->byval_arg;
1938 csig->params [0] = &mono_defaults.object_class->byval_arg;
1939 csig->params [1] = &mono_defaults.int_class->byval_arg;
1940 csig->params [2] = &mono_defaults.int_class->byval_arg;
1941 csig->params [3] = &mono_defaults.int_class->byval_arg;
1943 name = mono_signature_to_name (callsig, "runtime_invoke");
1944 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
1947 /* allocate local 0 (object) tmp */
1948 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1949 /* allocate local 1 (object) exc */
1950 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1952 /* cond set *exc to null */
1953 mono_mb_emit_byte (mb, CEE_LDARG_2);
1954 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1955 mono_mb_emit_byte (mb, 3);
1956 mono_mb_emit_byte (mb, CEE_LDARG_2);
1957 mono_mb_emit_byte (mb, CEE_LDNULL);
1958 mono_mb_emit_byte (mb, CEE_STIND_I);
1961 if (method->string_ctor) {
1962 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1963 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1964 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
1966 mono_mb_emit_ldarg (mb, 0);
1967 if (method->klass->valuetype) {
1968 mono_mb_emit_byte (mb, CEE_UNBOX);
1969 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method->klass));
1974 for (i = 0; i < sig->param_count; i++) {
1975 MonoType *t = sig->params [i];
1978 mono_mb_emit_ldarg (mb, 1);
1980 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
1981 mono_mb_emit_byte (mb, CEE_ADD);
1983 mono_mb_emit_byte (mb, CEE_LDIND_I);
1988 type = sig->params [i]->type;
1992 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1994 case MONO_TYPE_BOOLEAN:
1996 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1999 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2002 case MONO_TYPE_CHAR:
2003 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2007 mono_mb_emit_byte (mb, CEE_LDIND_I);
2010 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2013 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2016 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2019 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2023 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2025 case MONO_TYPE_STRING:
2026 case MONO_TYPE_CLASS:
2027 case MONO_TYPE_ARRAY:
2029 case MONO_TYPE_SZARRAY:
2030 case MONO_TYPE_OBJECT:
2033 case MONO_TYPE_VALUETYPE:
2034 if (t->data.klass->enumtype) {
2035 type = t->data.klass->enum_basetype->type;
2038 mono_mb_emit_byte (mb, CEE_LDOBJ);
2039 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2042 g_assert_not_reached ();
2046 mono_mb_emit_ldarg (mb, 3);
2047 mono_mb_emit_calli (mb, callsig);
2049 if (sig->ret->byref) {
2051 g_assert_not_reached ();
2055 switch (sig->ret->type) {
2056 case MONO_TYPE_VOID:
2057 if (!method->string_ctor)
2058 mono_mb_emit_byte (mb, CEE_LDNULL);
2060 case MONO_TYPE_BOOLEAN:
2061 case MONO_TYPE_CHAR:
2074 case MONO_TYPE_VALUETYPE:
2075 /* box value types */
2076 mono_mb_emit_byte (mb, CEE_BOX);
2077 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2079 case MONO_TYPE_STRING:
2080 case MONO_TYPE_CLASS:
2081 case MONO_TYPE_ARRAY:
2082 case MONO_TYPE_SZARRAY:
2083 case MONO_TYPE_OBJECT:
2088 g_assert_not_reached ();
2091 mono_mb_emit_stloc (mb, 0);
2093 mono_mb_emit_byte (mb, CEE_LEAVE);
2095 mono_mb_emit_i4 (mb, 0);
2097 clause = g_new0 (MonoExceptionClause, 1);
2098 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2099 clause->try_len = mb->pos;
2102 clause->token_or_filter = mb->pos;
2104 mono_mb_emit_byte (mb, CEE_POP);
2105 mono_mb_emit_byte (mb, CEE_LDARG_2);
2106 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2107 mono_mb_emit_byte (mb, CEE_PREFIX1);
2108 mono_mb_emit_byte (mb, CEE_CGT_UN);
2109 mono_mb_emit_byte (mb, CEE_PREFIX1);
2110 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2112 clause->handler_offset = mb->pos;
2115 /* store exception */
2116 mono_mb_emit_stloc (mb, 1);
2118 mono_mb_emit_byte (mb, CEE_LDARG_2);
2119 mono_mb_emit_ldloc (mb, 1);
2120 mono_mb_emit_byte (mb, CEE_STIND_I);
2122 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2123 mono_mb_emit_stloc (mb, 0);
2125 mono_mb_emit_byte (mb, CEE_LEAVE);
2126 mono_mb_emit_i4 (mb, 0);
2128 clause->handler_len = mb->pos - clause->handler_offset;
2131 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2132 mono_mb_emit_ldloc (mb, 0);
2133 mono_mb_emit_byte (mb, CEE_RET);
2135 /* taken from mono_mb_create_and_cache */
2136 EnterCriticalSection (&marshal_mutex);
2138 list = g_hash_table_lookup (cache, callsig);
2140 /* Somebody may have created it before us */
2141 /* we use the list_lookup flag to be a bit smarter */
2143 /* check if someone has created our wrapper, or just one with the same signature */
2144 item = g_slist_find_custom (list, method->klass, mono_marshal_runtime_glist_find_klass);
2146 res = (MonoMethod *) item->data;
2147 else /* we didn't find our wrapper */
2150 res = (MonoMethod *) list->data;
2153 if (!list || (list_lookup && list && !res)) {
2154 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2156 /* we add the wrapper to a slist and put that into value */
2157 list = g_slist_append (list, res);
2158 g_hash_table_insert (cache, callsig, list);
2159 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2162 LeaveCriticalSection (&marshal_mutex);
2163 /* end mono_mb_create_and_cache */
2167 header = ((MonoMethodNormal *)res)->header;
2168 header->num_clauses = 1;
2169 header->clauses = clause;
2175 * generates IL code to call managed methods from unmanaged code
2178 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2180 MonoMethodSignature *sig, *csig;
2181 MonoMethodBuilder *mb;
2182 MonoClass *klass = NULL;
2185 int i, pos = 0, *tmp_locals;
2186 static MonoMethodSignature *alloc_sig = NULL;
2189 g_assert (method != NULL);
2190 g_assert (!method->signature->pinvoke);
2192 cache = method->klass->image->managed_wrapper_cache;
2193 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2196 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2198 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2199 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2200 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2201 alloc_sig->pinvoke = 1;
2205 /* fime: howto free that memory ? */
2208 sig = method->signature;
2210 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2212 /* allocate local 0 (pointer) src_ptr */
2213 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2214 /* allocate local 1 (pointer) dst_ptr */
2215 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2216 /* allocate local 2 (boolean) delete_old */
2217 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2219 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2220 /* allocate local 3 to store the return value */
2221 mono_mb_add_local (mb, sig->ret);
2224 mono_mb_emit_icon (mb, 0);
2225 mono_mb_emit_byte (mb, CEE_STLOC_2);
2227 /* we copy the signature, so that we can modify it */
2228 csig = mono_metadata_signature_dup (sig);
2232 #ifdef PLATFORM_WIN32
2234 * Under windows, delegates passed to native code must use the STDCALL
2235 * calling convention.
2237 csig->call_convention = MONO_CALL_STDCALL;
2240 /* fixme: howto handle this ? */
2244 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2245 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2246 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2251 g_assert_not_reached ();
2256 /* we first do all conversions */
2257 tmp_locals = alloca (sizeof (int) * sig->param_count);
2258 for (i = 0; i < sig->param_count; i ++) {
2259 MonoType *t = sig->params [i];
2260 MonoMarshalSpec *spec = mspecs [i + 1];
2264 /* Ensure that we have marshalling info for this param */
2265 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2267 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2270 MonoMethod *marshal_native_to_managed;
2271 MonoMethod *get_instance;
2273 /* FIXME: Call CleanUpNativeData after the call */
2275 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2276 g_assert (mtype != NULL);
2277 mklass = mono_class_from_mono_type (mtype);
2278 g_assert (mklass != NULL);
2280 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2281 g_assert (marshal_native_to_managed);
2282 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2283 g_assert (get_instance);
2286 case MONO_TYPE_CLASS:
2287 case MONO_TYPE_OBJECT:
2288 case MONO_TYPE_STRING:
2289 case MONO_TYPE_ARRAY:
2290 case MONO_TYPE_SZARRAY:
2294 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2296 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2298 mono_mb_emit_byte (mb, CEE_CALL);
2299 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2301 mono_mb_emit_ldarg (mb, i);
2303 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2304 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2306 mono_mb_emit_stloc (mb, tmp_locals [i]);
2309 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2310 g_assert_not_reached ();
2317 case MONO_TYPE_CLASS: {
2318 klass = t->data.klass;
2320 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2322 if (klass->delegate) {
2323 g_assert (!t->byref);
2324 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2325 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2326 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2327 mono_mb_emit_ldarg (mb, i);
2328 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2329 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
2330 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_FTN_DEL);
2331 mono_mb_emit_stloc (mb, tmp_locals [i]);
2335 /* FIXME: Raise a MarshalDirectiveException here */
2336 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2338 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2339 mono_mb_emit_byte (mb, CEE_LDNULL);
2340 mono_mb_emit_stloc (mb, tmp_locals [i]);
2345 mono_mb_emit_ldarg (mb, i);
2349 /* Check for NULL and raise an exception */
2350 mono_mb_emit_byte (mb, CEE_BRTRUE);
2352 mono_mb_emit_i4 (mb, 0);
2354 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2356 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2357 mono_mb_emit_ldarg (mb, i);
2358 mono_mb_emit_byte (mb, CEE_LDIND_I);
2361 mono_mb_emit_byte (mb, CEE_STLOC_0);
2363 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2364 mono_mb_emit_stloc (mb, tmp_locals [i]);
2366 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2367 mono_mb_emit_byte (mb, CEE_BRFALSE);
2369 mono_mb_emit_i4 (mb, 0);
2371 /* Create and set dst */
2372 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2373 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2374 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2375 mono_mb_emit_stloc (mb, tmp_locals [i]);
2376 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2377 mono_mb_emit_icon (mb, sizeof (MonoObject));
2378 mono_mb_emit_byte (mb, CEE_ADD);
2379 mono_mb_emit_byte (mb, CEE_STLOC_1);
2381 /* emit valuetype conversion code */
2382 emit_struct_conv (mb, klass, TRUE);
2384 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2387 case MONO_TYPE_VALUETYPE:
2389 klass = sig->params [i]->data.klass;
2390 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2391 klass->blittable || klass->enumtype)
2394 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2396 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2400 mono_mb_emit_ldarg (mb, i);
2402 mono_mb_emit_ldarg_addr (mb, i);
2403 mono_mb_emit_byte (mb, CEE_STLOC_0);
2406 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2407 mono_mb_emit_byte (mb, CEE_BRFALSE);
2409 mono_mb_emit_i4 (mb, 0);
2412 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2413 mono_mb_emit_byte (mb, CEE_STLOC_1);
2415 /* emit valuetype conversion code */
2416 emit_struct_conv (mb, klass, TRUE);
2419 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2421 case MONO_TYPE_STRING: {
2422 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2427 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2428 csig->params [i] = &mono_defaults.int_class->byval_arg;
2430 mono_mb_emit_ldarg (mb, i);
2431 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2432 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2435 case MONO_NATIVE_LPWSTR:
2436 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
2438 case MONO_NATIVE_LPSTR:
2439 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
2442 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2443 MonoException *exc = mono_get_exception_not_implemented (msg);
2446 mono_raise_exception (exc);
2450 mono_mb_emit_stloc (mb, tmp_locals [i]);
2453 case MONO_TYPE_ARRAY:
2454 case MONO_TYPE_SZARRAY:
2458 klass = mono_class_from_mono_type (t);
2460 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2461 csig->params [i] = &mono_defaults.int_class->byval_arg;
2463 g_warning ("array marshaling not implemented");
2464 g_assert_not_reached ();
2469 for (i = 0; i < sig->param_count; i++) {
2470 MonoType *t = sig->params [i];
2473 case MONO_TYPE_BOOLEAN:
2487 mono_mb_emit_ldarg (mb, i);
2489 case MONO_TYPE_STRING:
2491 mono_mb_emit_ldarg (mb, i);
2493 g_assert (tmp_locals [i]);
2494 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2497 case MONO_TYPE_CLASS:
2499 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2501 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2503 case MONO_TYPE_ARRAY:
2504 case MONO_TYPE_SZARRAY:
2505 case MONO_TYPE_OBJECT:
2507 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2509 mono_mb_emit_ldarg (mb, i);
2511 case MONO_TYPE_VALUETYPE:
2512 klass = sig->params [i]->data.klass;
2513 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2514 klass->blittable || klass->enumtype) {
2515 mono_mb_emit_ldarg (mb, i);
2519 g_assert (tmp_locals [i]);
2521 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2523 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2526 g_warning ("type 0x%02x unknown", t->type);
2527 g_assert_not_reached ();
2531 emit_thread_interrupt_checkpoint (mb);
2532 mono_mb_emit_managed_call (mb, method, NULL);
2534 /* Ensure that we have marshalling info for the return */
2535 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2537 if (!sig->ret->byref) {
2538 switch (sig->ret->type) {
2539 case MONO_TYPE_VOID:
2541 case MONO_TYPE_BOOLEAN:
2555 case MONO_TYPE_OBJECT:
2556 mono_mb_emit_byte (mb, CEE_STLOC_3);
2558 case MONO_TYPE_STRING:
2559 csig->ret = &mono_defaults.int_class->byval_arg;
2561 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2562 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2563 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
2564 mono_mb_emit_byte (mb, CEE_STLOC_3);
2566 case MONO_TYPE_VALUETYPE:
2567 klass = sig->ret->data.klass;
2568 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2569 klass->blittable || klass->enumtype)
2572 /* load pointer to returned value type */
2573 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2574 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2576 /* store the address of the source into local variable 0 */
2577 mono_mb_emit_byte (mb, CEE_STLOC_0);
2578 /* allocate space for the native struct and
2579 * store the address into dst_ptr */
2580 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2581 g_assert (retobj_var);
2582 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2583 mono_mb_emit_byte (mb, CEE_CONV_I);
2584 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2585 emit_thread_interrupt_checkpoint (mb);
2586 mono_mb_emit_byte (mb, CEE_STLOC_1);
2587 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2588 mono_mb_emit_stloc (mb, retobj_var);
2590 /* emit valuetype conversion code */
2591 emit_struct_conv (mb, klass, FALSE);
2593 case MONO_TYPE_CLASS: {
2596 klass = sig->ret->data.klass;
2598 /* FIXME: Raise a MarshalDirectiveException here */
2599 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2601 mono_mb_emit_byte (mb, CEE_STLOC_0);
2602 /* Check for null */
2603 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2604 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2605 mono_mb_emit_byte (mb, CEE_LDNULL);
2606 mono_mb_emit_byte (mb, CEE_STLOC_3);
2607 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2609 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2612 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2613 mono_mb_emit_icon (mb, sizeof (MonoObject));
2614 mono_mb_emit_byte (mb, CEE_ADD);
2615 mono_mb_emit_byte (mb, CEE_STLOC_0);
2617 /* Allocate and set dest */
2618 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2619 mono_mb_emit_byte (mb, CEE_CONV_I);
2620 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2621 emit_thread_interrupt_checkpoint (mb);
2622 mono_mb_emit_byte (mb, CEE_DUP);
2623 mono_mb_emit_byte (mb, CEE_STLOC_1);
2624 mono_mb_emit_byte (mb, CEE_STLOC_3);
2626 emit_struct_conv (mb, klass, FALSE);
2628 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2632 g_warning ("return type 0x%02x unknown", sig->ret->type);
2633 g_assert_not_reached ();
2636 mono_mb_emit_byte (mb, CEE_STLOC_3);
2639 /* Convert byref arguments back */
2640 for (i = 0; i < sig->param_count; i ++) {
2641 MonoType *t = sig->params [i];
2647 case MONO_TYPE_CLASS: {
2650 klass = t->data.klass;
2652 /* Check for null */
2653 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2654 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2655 mono_mb_emit_ldarg (mb, i);
2656 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2657 mono_mb_emit_byte (mb, CEE_STIND_I);
2658 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2660 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2663 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2664 mono_mb_emit_icon (mb, sizeof (MonoObject));
2665 mono_mb_emit_byte (mb, CEE_ADD);
2666 mono_mb_emit_byte (mb, CEE_STLOC_0);
2668 /* Allocate and set dest */
2669 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2670 mono_mb_emit_byte (mb, CEE_CONV_I);
2671 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2672 emit_thread_interrupt_checkpoint (mb);
2673 mono_mb_emit_byte (mb, CEE_STLOC_1);
2675 /* Update argument pointer */
2676 mono_mb_emit_ldarg (mb, i);
2677 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2678 mono_mb_emit_byte (mb, CEE_STIND_I);
2680 /* emit valuetype conversion code */
2681 emit_struct_conv (mb, klass, FALSE);
2683 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2686 case MONO_TYPE_VALUETYPE: {
2689 klass = t->data.klass;
2691 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2692 klass->blittable || klass->enumtype) {
2696 /* Check for null */
2697 mono_mb_emit_ldarg (mb, i);
2698 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2701 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2702 mono_mb_emit_byte (mb, CEE_STLOC_0);
2705 mono_mb_emit_ldarg (mb, i);
2706 mono_mb_emit_byte (mb, CEE_STLOC_1);
2708 /* emit valuetype conversion code */
2709 emit_struct_conv (mb, klass, FALSE);
2711 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2718 mono_mb_emit_ldloc (mb, retobj_var);
2719 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2720 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2721 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2724 if (!MONO_TYPE_IS_VOID(sig->ret))
2725 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2726 mono_mb_emit_byte (mb, CEE_RET);
2730 res = mono_mb_create_and_cache (cache, method,
2731 mb, csig, sig->param_count + 16);
2733 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2736 //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));
2742 * mono_marshal_get_ldfld_wrapper:
2743 * @type: the type of the field
2745 * This method generates a function which can be use to load a field with type
2746 * @type from an object. The generated function has the following signature:
2747 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
2750 mono_marshal_get_ldfld_wrapper (MonoType *type)
2752 MonoMethodSignature *sig, *csig;
2753 MonoMethodBuilder *mb;
2756 static GHashTable *ldfld_hash = NULL;
2758 int t, pos0, pos1 = 0;
2763 if (type->type == MONO_TYPE_SZARRAY) {
2764 klass = mono_defaults.array_class;
2765 } else if (type->type == MONO_TYPE_VALUETYPE) {
2766 klass = type->data.klass;
2767 if (klass->enumtype) {
2768 t = klass->enum_basetype->type;
2769 klass = mono_class_from_mono_type (klass->enum_basetype);
2771 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2772 t == MONO_TYPE_CLASS) {
2773 klass = mono_defaults.object_class;
2774 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2775 klass = mono_defaults.int_class;
2777 klass = mono_class_from_mono_type (type);
2780 klass = mono_defaults.int_class;
2783 EnterCriticalSection (&marshal_mutex);
2785 ldfld_hash = g_hash_table_new (NULL, NULL);
2786 res = g_hash_table_lookup (ldfld_hash, klass);
2787 LeaveCriticalSection (&marshal_mutex);
2791 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
2792 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
2795 mb->method->save_lmf = 1;
2797 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2798 sig->params [0] = &mono_defaults.object_class->byval_arg;
2799 sig->params [1] = &mono_defaults.int_class->byval_arg;
2800 sig->params [2] = &mono_defaults.int_class->byval_arg;
2801 sig->params [3] = &mono_defaults.int_class->byval_arg;
2802 sig->ret = &klass->byval_arg;
2804 mono_mb_emit_ldarg (mb, 0);
2805 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2807 mono_mb_emit_ldarg (mb, 0);
2808 mono_mb_emit_ldarg (mb, 1);
2809 mono_mb_emit_ldarg (mb, 2);
2811 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
2812 csig->params [0] = &mono_defaults.object_class->byval_arg;
2813 csig->params [1] = &mono_defaults.int_class->byval_arg;
2814 csig->params [2] = &mono_defaults.int_class->byval_arg;
2815 csig->ret = &klass->this_arg;
2818 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
2819 emit_thread_interrupt_checkpoint (mb);
2821 if (klass->valuetype) {
2822 mono_mb_emit_byte (mb, CEE_UNBOX);
2823 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2824 mono_mb_emit_byte (mb, CEE_BR);
2826 mono_mb_emit_i4 (mb, 0);
2828 mono_mb_emit_byte (mb, CEE_RET);
2832 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2834 mono_mb_emit_ldarg (mb, 0);
2835 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2836 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2837 mono_mb_emit_ldarg (mb, 3);
2838 mono_mb_emit_byte (mb, CEE_ADD);
2840 if (klass->valuetype)
2841 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2846 case MONO_TYPE_BOOLEAN:
2847 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2849 case MONO_TYPE_CHAR:
2852 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2856 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2860 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2863 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2866 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2868 case MONO_TYPE_ARRAY:
2870 case MONO_TYPE_FNPTR:
2871 case MONO_TYPE_SZARRAY:
2872 case MONO_TYPE_OBJECT:
2873 case MONO_TYPE_CLASS:
2874 case MONO_TYPE_STRING:
2877 mono_mb_emit_byte (mb, CEE_LDIND_I);
2879 case MONO_TYPE_VALUETYPE:
2880 g_assert (!klass->enumtype);
2881 mono_mb_emit_byte (mb, CEE_LDOBJ);
2882 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2885 g_warning ("type %x not implemented", type->type);
2886 g_assert_not_reached ();
2889 mono_mb_emit_byte (mb, CEE_RET);
2891 res = mono_mb_create_and_cache (ldfld_hash, klass,
2892 mb, sig, sig->param_count + 16);
2899 * mono_marshal_get_stfld_wrapper:
2900 * @type: the type of the field
2902 * This method generates a function which can be use to store a field with type
2903 * @type. The generated function has the following signature:
2904 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
2907 mono_marshal_get_stfld_wrapper (MonoType *type)
2909 MonoMethodSignature *sig, *csig;
2910 MonoMethodBuilder *mb;
2913 static GHashTable *stfld_hash = NULL;
2920 if (type->type == MONO_TYPE_SZARRAY) {
2921 klass = mono_defaults.array_class;
2922 } else if (type->type == MONO_TYPE_VALUETYPE) {
2923 klass = type->data.klass;
2924 if (klass->enumtype) {
2925 t = klass->enum_basetype->type;
2926 klass = mono_class_from_mono_type (klass->enum_basetype);
2928 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2929 t == MONO_TYPE_CLASS) {
2930 klass = mono_defaults.object_class;
2931 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2932 klass = mono_defaults.int_class;
2934 klass = mono_class_from_mono_type (type);
2937 klass = mono_defaults.int_class;
2940 EnterCriticalSection (&marshal_mutex);
2942 stfld_hash = g_hash_table_new (NULL, NULL);
2943 res = g_hash_table_lookup (stfld_hash, klass);
2944 LeaveCriticalSection (&marshal_mutex);
2948 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
2949 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
2952 mb->method->save_lmf = 1;
2954 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
2955 sig->params [0] = &mono_defaults.object_class->byval_arg;
2956 sig->params [1] = &mono_defaults.int_class->byval_arg;
2957 sig->params [2] = &mono_defaults.int_class->byval_arg;
2958 sig->params [3] = &mono_defaults.int_class->byval_arg;
2959 sig->params [4] = &klass->byval_arg;
2960 sig->ret = &mono_defaults.void_class->byval_arg;
2962 mono_mb_emit_ldarg (mb, 0);
2963 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2965 mono_mb_emit_ldarg (mb, 0);
2966 mono_mb_emit_ldarg (mb, 1);
2967 mono_mb_emit_ldarg (mb, 2);
2968 mono_mb_emit_ldarg (mb, 4);
2970 if (klass->valuetype) {
2971 mono_mb_emit_byte (mb, CEE_BOX);
2972 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2975 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2976 csig->params [0] = &mono_defaults.object_class->byval_arg;
2977 csig->params [1] = &mono_defaults.int_class->byval_arg;
2978 csig->params [2] = &mono_defaults.int_class->byval_arg;
2979 csig->params [3] = &klass->this_arg;
2980 csig->ret = &mono_defaults.void_class->byval_arg;
2983 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
2984 emit_thread_interrupt_checkpoint (mb);
2986 mono_mb_emit_byte (mb, CEE_RET);
2988 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2990 mono_mb_emit_ldarg (mb, 0);
2991 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2992 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2993 mono_mb_emit_ldarg (mb, 3);
2994 mono_mb_emit_byte (mb, CEE_ADD);
2995 mono_mb_emit_ldarg (mb, 4);
3000 case MONO_TYPE_BOOLEAN:
3001 mono_mb_emit_byte (mb, CEE_STIND_I1);
3003 case MONO_TYPE_CHAR:
3006 mono_mb_emit_byte (mb, CEE_STIND_I2);
3010 mono_mb_emit_byte (mb, CEE_STIND_I4);
3014 mono_mb_emit_byte (mb, CEE_STIND_I8);
3017 mono_mb_emit_byte (mb, CEE_STIND_R4);
3020 mono_mb_emit_byte (mb, CEE_STIND_R8);
3022 case MONO_TYPE_ARRAY:
3024 case MONO_TYPE_FNPTR:
3025 case MONO_TYPE_SZARRAY:
3026 case MONO_TYPE_OBJECT:
3027 case MONO_TYPE_CLASS:
3028 case MONO_TYPE_STRING:
3031 mono_mb_emit_byte (mb, CEE_STIND_I);
3033 case MONO_TYPE_VALUETYPE:
3034 g_assert (!klass->enumtype);
3035 mono_mb_emit_byte (mb, CEE_STOBJ);
3036 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3039 g_warning ("type %x not implemented", type->type);
3040 g_assert_not_reached ();
3043 mono_mb_emit_byte (mb, CEE_RET);
3045 res = mono_mb_create_and_cache (stfld_hash, klass,
3046 mb, sig, sig->param_count + 16);
3053 * generates IL code for the icall wrapper (the generated method
3054 * calls the unmanaged code in func)
3057 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3059 MonoMethodSignature *csig;
3060 MonoMethodBuilder *mb;
3064 g_assert (sig->pinvoke);
3066 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3068 mb->method->save_lmf = 1;
3070 /* we copy the signature, so that we can modify it */
3073 mono_mb_emit_byte (mb, CEE_LDARG_0);
3075 for (i = 0; i < sig->param_count; i++)
3076 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3078 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3079 emit_thread_interrupt_checkpoint (mb);
3080 mono_mb_emit_byte (mb, CEE_RET);
3082 csig = mono_metadata_signature_dup (sig);
3085 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3092 * mono_marshal_get_native_wrapper:
3093 * @method: The MonoMethod to wrap.
3095 * generates IL code for the pinvoke wrapper (the generated method
3096 * calls the unmanaged code in method->addr)
3099 mono_marshal_get_native_wrapper (MonoMethod *method)
3101 MonoMethodSignature *sig, *csig;
3102 MonoMethodPInvoke *piinfo;
3103 MonoMethodBuilder *mb;
3104 MonoMarshalSpec **mspecs;
3108 gboolean pinvoke = FALSE;
3109 int i, pos, argnum, *tmp_locals;
3111 const char *exc_class = "MissingMethodException";
3112 const char *exc_arg = NULL;
3114 g_assert (method != NULL);
3115 g_assert (method->signature->pinvoke);
3117 cache = method->klass->image->native_wrapper_cache;
3118 if ((res = mono_marshal_find_in_cache (cache, method)))
3121 sig = method->signature;
3123 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3124 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3127 if (!method->addr) {
3129 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
3131 method->addr = mono_lookup_internal_call (method);
3134 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3136 mb->method->save_lmf = 1;
3138 piinfo = (MonoMethodPInvoke *)method;
3140 if (!method->addr) {
3141 mono_mb_emit_exception (mb, exc_class, exc_arg);
3142 csig = mono_metadata_signature_dup (sig);
3144 res = mono_mb_create_and_cache (cache, method,
3145 mb, csig, csig->param_count + 16);
3150 /* internal calls: we simply push all arguments and call the method (no conversions) */
3151 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3153 /* hack - string constructors returns a value */
3154 if (method->string_ctor) {
3155 csig = mono_metadata_signature_dup (sig);
3156 csig->ret = &mono_defaults.string_class->byval_arg;
3161 mono_mb_emit_byte (mb, CEE_LDARG_0);
3163 for (i = 0; i < sig->param_count; i++)
3164 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3166 g_assert (method->addr);
3167 mono_mb_emit_native_call (mb, csig, method->addr);
3168 emit_thread_interrupt_checkpoint (mb);
3169 mono_mb_emit_byte (mb, CEE_RET);
3171 csig = mono_metadata_signature_dup (csig);
3173 res = mono_mb_create_and_cache (cache, method,
3174 mb, csig, csig->param_count + 16);
3181 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
3182 mono_method_get_marshal_info (method, mspecs);
3184 /* pinvoke: we need to convert the arguments if necessary */
3186 /* we copy the signature, so that we can set pinvoke to 0 */
3187 csig = mono_metadata_signature_dup (sig);
3190 /* we allocate local for use with emit_struct_conv() */
3191 /* allocate local 0 (pointer) src_ptr */
3192 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3193 /* allocate local 1 (pointer) dst_ptr */
3194 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3195 /* allocate local 2 (boolean) delete_old */
3196 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3198 /* delete_old = FALSE */
3199 mono_mb_emit_icon (mb, 0);
3200 mono_mb_emit_byte (mb, CEE_STLOC_2);
3202 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3203 /* allocate local 3 to store the return value */
3204 mono_mb_add_local (mb, sig->ret);
3207 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3208 /* Return type custom marshaling */
3210 * Since we can't determine the return type of the unmanaged function,
3211 * we assume it returns a pointer, and pass that pointer to
3212 * MarshalNativeToManaged.
3214 csig->ret = &mono_defaults.int_class->byval_arg;
3217 /* we first do all conversions */
3218 tmp_locals = alloca (sizeof (int) * sig->param_count);
3220 for (i = 0; i < sig->param_count; i ++) {
3221 MonoType *t = sig->params [i];
3222 MonoMarshalSpec *spec = mspecs [i + 1];
3224 argnum = i + sig->hasthis;
3227 /* Ensure that we have marshalling info for this param */
3228 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3230 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3233 MonoMethod *marshal_managed_to_native;
3234 MonoMethod *get_instance;
3236 /* FIXME: Call CleanUpNativeData after the call */
3238 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3239 g_assert (mtype != NULL);
3240 mklass = mono_class_from_mono_type (mtype);
3241 g_assert (mklass != NULL);
3243 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3244 g_assert (marshal_managed_to_native);
3245 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3246 g_assert (get_instance);
3249 case MONO_TYPE_CLASS:
3250 case MONO_TYPE_OBJECT:
3251 case MONO_TYPE_STRING:
3252 case MONO_TYPE_ARRAY:
3253 case MONO_TYPE_SZARRAY:
3254 case MONO_TYPE_VALUETYPE:
3258 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3260 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3262 mono_mb_emit_byte (mb, CEE_CALL);
3263 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3265 mono_mb_emit_ldarg (mb, argnum);
3267 if (t->type == MONO_TYPE_VALUETYPE) {
3269 * Since we can't determine the type of the argument, we
3270 * will assume the unmanaged function takes a pointer.
3272 csig->params [i] = &mono_defaults.int_class->byval_arg;
3274 mono_mb_emit_byte (mb, CEE_BOX);
3275 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3278 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3279 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3281 mono_mb_emit_stloc (mb, tmp_locals [i]);
3285 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3286 g_assert_not_reached ();
3292 if (spec && spec->native == MONO_NATIVE_ASANY) {
3293 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3295 g_assert (t->type == MONO_TYPE_OBJECT);
3296 g_assert (!t->byref);
3298 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3299 mono_mb_emit_ldarg (mb, argnum);
3300 mono_mb_emit_icon (mb, encoding);
3301 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3302 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
3303 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ASANY);
3304 mono_mb_emit_stloc (mb, tmp_locals [i]);
3309 case MONO_TYPE_VALUETYPE:
3310 klass = t->data.klass;
3312 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3313 klass->blittable || klass->enumtype)
3316 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3318 /* store the address of the source into local variable 0 */
3320 mono_mb_emit_ldarg (mb, argnum);
3322 mono_mb_emit_ldarg_addr (mb, argnum);
3324 mono_mb_emit_byte (mb, CEE_STLOC_0);
3326 /* allocate space for the native struct and
3327 * store the address into local variable 1 (dest) */
3328 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3329 mono_mb_emit_byte (mb, CEE_PREFIX1);
3330 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3331 mono_mb_emit_stloc (mb, tmp_locals [i]);
3334 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3335 mono_mb_emit_byte (mb, CEE_BRFALSE);
3337 mono_mb_emit_i4 (mb, 0);
3341 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3342 mono_mb_emit_byte (mb, CEE_STLOC_1);
3344 /* emit valuetype conversion code */
3345 emit_struct_conv (mb, klass, FALSE);
3348 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3350 case MONO_TYPE_STRING: {
3351 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3353 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3354 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3357 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3360 mono_mb_emit_ldarg (mb, argnum);
3361 mono_mb_emit_byte (mb, CEE_LDIND_I);
3363 mono_mb_emit_ldarg (mb, argnum);
3366 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3367 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3370 case MONO_NATIVE_LPWSTR:
3371 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPWSTR);
3373 case MONO_NATIVE_LPSTR:
3374 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
3376 case MONO_NATIVE_LPTSTR:
3377 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPTSTR);
3380 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3381 MonoException *exc = mono_get_exception_not_implemented (msg);
3384 mono_raise_exception (exc);
3388 mono_mb_emit_stloc (mb, tmp_locals [i]);
3391 case MONO_TYPE_CLASS:
3392 case MONO_TYPE_OBJECT:
3393 klass = t->data.klass;
3395 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3396 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3398 if (klass->delegate) {
3399 g_assert (!t->byref);
3400 mono_mb_emit_ldarg (mb, argnum);
3401 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3402 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3403 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
3404 mono_mb_emit_stloc (mb, tmp_locals [i]);
3405 } else if (klass == mono_defaults.stringbuilder_class) {
3406 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3408 g_assert (!t->byref);
3409 mono_mb_emit_ldarg (mb, argnum);
3410 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3411 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3414 case MONO_NATIVE_LPWSTR:
3415 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPWSTR);
3417 case MONO_NATIVE_LPSTR:
3418 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPSTR);
3420 case MONO_NATIVE_LPTSTR:
3421 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPTSTR);
3424 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3425 MonoException *exc = mono_get_exception_not_implemented (msg);
3428 mono_raise_exception (exc);
3432 mono_mb_emit_stloc (mb, tmp_locals [i]);
3434 mono_mb_emit_byte (mb, CEE_LDNULL);
3435 mono_mb_emit_stloc (mb, tmp_locals [i]);
3438 /* we dont need any conversions for out parameters */
3439 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3442 mono_mb_emit_ldarg (mb, argnum);
3443 mono_mb_emit_byte (mb, CEE_LDIND_I);
3446 mono_mb_emit_ldarg (mb, argnum);
3447 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3448 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3451 /* store the address of the source into local variable 0 */
3452 mono_mb_emit_byte (mb, CEE_STLOC_0);
3453 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3454 mono_mb_emit_byte (mb, CEE_BRFALSE);
3456 mono_mb_emit_i4 (mb, 0);
3458 /* allocate space for the native struct and store the address */
3459 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3460 mono_mb_emit_byte (mb, CEE_PREFIX1);
3461 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3462 mono_mb_emit_stloc (mb, tmp_locals [i]);
3464 /* set the src_ptr */
3465 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3466 mono_mb_emit_icon (mb, sizeof (MonoObject));
3467 mono_mb_emit_byte (mb, CEE_ADD);
3468 mono_mb_emit_byte (mb, CEE_STLOC_0);
3471 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3472 mono_mb_emit_byte (mb, CEE_STLOC_1);
3474 /* emit valuetype conversion code */
3475 emit_struct_conv (mb, klass, FALSE);
3477 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3481 case MONO_TYPE_ARRAY:
3482 case MONO_TYPE_SZARRAY:
3486 klass = mono_class_from_mono_type (t);
3488 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3489 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3491 if (klass->element_class == mono_defaults.string_class) {
3492 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3494 mono_mb_emit_ldarg (mb, argnum);
3495 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3496 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3499 case MONO_NATIVE_LPWSTR:
3500 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRWLPARRAY);
3502 case MONO_NATIVE_LPSTR:
3503 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY);
3506 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3507 MonoException *exc = mono_get_exception_not_implemented (msg);
3510 mono_raise_exception (exc);
3513 mono_mb_emit_stloc (mb, tmp_locals [i]);
3515 else if (klass->element_class->blittable) {
3516 mono_mb_emit_ldarg (mb, argnum);
3517 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3518 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3520 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ARRAY_LPARRAY);
3521 mono_mb_emit_stloc (mb, tmp_locals [i]);
3525 guint32 label1, label2, label3;
3526 int index_var, dest_ptr;
3528 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3531 mono_mb_emit_ldarg (mb, argnum);
3532 mono_mb_emit_stloc (mb, tmp_locals [i]);
3533 mono_mb_emit_ldarg (mb, argnum);
3534 mono_mb_emit_byte (mb, CEE_BRFALSE);
3536 mono_mb_emit_i4 (mb, 0);
3538 /* allocate space for the native struct and store the address */
3539 eklass = klass->element_class;
3540 mono_mb_emit_icon (mb, mono_class_native_size (eklass, NULL));
3541 mono_mb_emit_ldarg (mb, argnum);
3542 mono_mb_emit_byte (mb, CEE_LDLEN);
3543 mono_mb_emit_byte (mb, CEE_MUL);
3544 mono_mb_emit_byte (mb, CEE_PREFIX1);
3545 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3546 mono_mb_emit_stloc (mb, tmp_locals [i]);
3548 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3549 mono_mb_emit_stloc (mb, dest_ptr);
3551 /* Emit marshalling loop */
3552 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3553 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3554 mono_mb_emit_stloc (mb, index_var);
3556 mono_mb_emit_ldloc (mb, index_var);
3557 mono_mb_emit_ldarg (mb, argnum);
3558 mono_mb_emit_byte (mb, CEE_LDLEN);
3559 mono_mb_emit_byte (mb, CEE_BGE);
3561 mono_mb_emit_i4 (mb, 0);
3563 /* Emit marshalling code */
3565 /* set the src_ptr */
3566 mono_mb_emit_ldarg (mb, argnum);
3567 mono_mb_emit_ldloc (mb, index_var);
3568 mono_mb_emit_byte (mb, CEE_LDELEMA);
3569 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3570 mono_mb_emit_byte (mb, CEE_STLOC_0);
3573 mono_mb_emit_ldloc (mb, dest_ptr);
3574 mono_mb_emit_byte (mb, CEE_STLOC_1);
3576 /* emit valuetype conversion code */
3577 emit_struct_conv (mb, eklass, FALSE);
3579 mono_mb_emit_add_to_local (mb, index_var, 1);
3580 mono_mb_emit_add_to_local (mb, dest_ptr, mono_class_native_size (eklass, NULL));
3582 mono_mb_emit_byte (mb, CEE_BR);
3583 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3585 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3586 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3590 case MONO_TYPE_BOOLEAN: {
3591 MonoType *local_type;
3592 int variant_bool = 0;
3596 local_type = &mono_defaults.int32_class->byval_arg;
3598 switch (spec->native) {
3599 case MONO_NATIVE_I1:
3600 local_type = &mono_defaults.byte_class->byval_arg;
3602 case MONO_NATIVE_VARIANTBOOL:
3603 local_type = &mono_defaults.int16_class->byval_arg;
3607 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3611 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3612 tmp_locals [i] = mono_mb_add_local (mb, local_type);
3613 mono_mb_emit_ldarg (mb, argnum);
3614 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3616 mono_mb_emit_byte (mb, CEE_NEG);
3617 mono_mb_emit_stloc (mb, tmp_locals [i]);
3623 /* push all arguments */
3626 mono_mb_emit_byte (mb, CEE_LDARG_0);
3628 for (i = 0; i < sig->param_count; i++) {
3629 MonoType *t = sig->params [i];
3630 MonoMarshalSpec *spec = mspecs [i + 1];
3632 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3633 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3636 if (spec && spec->native == MONO_NATIVE_ASANY) {
3637 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3640 argnum = i + sig->hasthis;
3643 case MONO_TYPE_BOOLEAN:
3645 g_assert (tmp_locals [i]);
3646 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3648 mono_mb_emit_ldarg (mb, argnum);
3663 mono_mb_emit_ldarg (mb, argnum);
3665 case MONO_TYPE_VALUETYPE:
3666 klass = sig->params [i]->data.klass;
3667 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3668 klass->blittable || klass->enumtype) {
3669 mono_mb_emit_ldarg (mb, argnum);
3672 g_assert (tmp_locals [i]);
3673 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3675 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3676 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3677 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3680 case MONO_TYPE_STRING:
3681 case MONO_TYPE_CLASS:
3682 case MONO_TYPE_OBJECT:
3683 g_assert (tmp_locals [i]);
3685 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3687 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3689 case MONO_TYPE_CHAR:
3690 /* fixme: dont know how to marshal that. We cant simply
3691 * convert it to a one byte UTF8 character, because an
3692 * unicode character may need more that one byte in UTF8 */
3693 mono_mb_emit_ldarg (mb, argnum);
3695 case MONO_TYPE_ARRAY:
3696 case MONO_TYPE_SZARRAY:
3698 mono_mb_emit_ldarg (mb, argnum);
3700 g_assert (tmp_locals [i]);
3701 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3704 case MONO_TYPE_TYPEDBYREF:
3705 case MONO_TYPE_FNPTR:
3707 g_warning ("type 0x%02x unknown", t->type);
3708 g_assert_not_reached ();
3713 /* call the native method */
3714 mono_mb_emit_native_call (mb, csig, method->addr);
3716 /* Set LastError if needed */
3717 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
3718 MonoMethodSignature *lasterr_sig;
3720 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3721 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
3722 lasterr_sig->pinvoke = 1;
3724 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
3727 /* Ensure that we have marshalling info for the return */
3728 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3730 /* convert the result */
3731 if (!sig->ret->byref) {
3732 MonoMarshalSpec *spec = mspecs [0];
3733 type = sig->ret->type;
3735 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3738 MonoMethod *marshal_native_to_managed;
3739 MonoMethod *get_instance;
3741 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3742 g_assert (mtype != NULL);
3743 mklass = mono_class_from_mono_type (mtype);
3744 g_assert (mklass != NULL);
3746 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3747 g_assert (marshal_native_to_managed);
3748 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3749 g_assert (get_instance);
3752 case MONO_TYPE_CLASS:
3753 case MONO_TYPE_OBJECT:
3754 case MONO_TYPE_STRING:
3755 case MONO_TYPE_ARRAY:
3756 case MONO_TYPE_SZARRAY:
3757 case MONO_TYPE_VALUETYPE:
3758 if (type == MONO_TYPE_VALUETYPE) {
3759 /* local 3 can't hold a pointer */
3760 mono_mb_emit_byte (mb, CEE_STLOC_0);
3763 mono_mb_emit_byte (mb, CEE_STLOC_3);
3765 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3767 mono_mb_emit_byte (mb, CEE_CALL);
3768 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3770 if (type == MONO_TYPE_VALUETYPE)
3771 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3773 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3775 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3776 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3778 if (type == MONO_TYPE_VALUETYPE) {
3779 mono_mb_emit_byte (mb, CEE_UNBOX);
3780 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3782 mono_mb_emit_byte (mb, CEE_STLOC_3);
3785 g_warning ("custom marshalling of type %x is currently not supported", type);
3786 g_assert_not_reached ();
3793 case MONO_TYPE_VOID:
3808 /* no conversions necessary */
3809 mono_mb_emit_byte (mb, CEE_STLOC_3);
3811 case MONO_TYPE_BOOLEAN:
3812 /* maybe we need to make sure that it fits within 8 bits */
3813 mono_mb_emit_byte (mb, CEE_STLOC_3);
3815 case MONO_TYPE_VALUETYPE:
3816 klass = sig->ret->data.klass;
3817 if (klass->enumtype) {
3818 type = sig->ret->data.klass->enum_basetype->type;
3822 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3824 mono_mb_emit_byte (mb, CEE_STLOC_3);
3827 /* load pointer to returned value type */
3828 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3829 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3830 /* store the address of the source into local variable 0 */
3831 mono_mb_emit_byte (mb, CEE_STLOC_0);
3833 mono_mb_emit_ldloc_addr (mb, 3);
3834 mono_mb_emit_byte (mb, CEE_STLOC_1);
3836 /* emit valuetype conversion code */
3837 emit_struct_conv (mb, sig->ret->data.klass, TRUE);
3839 case MONO_TYPE_STRING:
3840 mono_mb_emit_byte (mb, CEE_STLOC_0);
3841 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3843 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3844 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3846 switch (spec->native) {
3847 case MONO_NATIVE_LPWSTR:
3848 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
3851 g_warning ("marshalling conversion not implemented");
3852 g_assert_not_reached ();
3855 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3857 mono_mb_emit_byte (mb, CEE_STLOC_3);
3859 /* free the string */
3860 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3861 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3862 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3864 case MONO_TYPE_CLASS:
3865 case MONO_TYPE_OBJECT:
3866 klass = sig->ret->data.klass;
3869 mono_mb_emit_byte (mb, CEE_STLOC_0);
3871 mono_mb_emit_byte (mb, CEE_LDNULL);
3872 mono_mb_emit_byte (mb, CEE_STLOC_3);
3875 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3876 mono_mb_emit_byte (mb, CEE_BRFALSE);
3878 mono_mb_emit_i4 (mb, 0);
3880 /* allocate result object */
3882 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3883 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3884 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3885 mono_mb_emit_byte (mb, CEE_STLOC_3);
3889 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3890 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3891 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3892 mono_mb_emit_icon (mb, sizeof (MonoObject));
3893 mono_mb_emit_byte (mb, CEE_ADD);
3894 mono_mb_emit_byte (mb, CEE_STLOC_1);
3896 /* emit conversion code */
3897 emit_struct_conv (mb, klass, TRUE);
3899 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3901 case MONO_TYPE_ARRAY:
3902 case MONO_TYPE_SZARRAY:
3903 /* fixme: we need conversions here */
3904 mono_mb_emit_byte (mb, CEE_STLOC_3);
3906 case MONO_TYPE_CHAR:
3907 /* fixme: we need conversions here */
3908 mono_mb_emit_byte (mb, CEE_STLOC_3);
3910 case MONO_TYPE_TYPEDBYREF:
3911 case MONO_TYPE_FNPTR:
3913 g_warning ("return type 0x%02x unknown", sig->ret->type);
3914 g_assert_not_reached ();
3918 mono_mb_emit_byte (mb, CEE_STLOC_3);
3922 * Need to call this after converting the result since MONO_VTADDR needs
3923 * to be adjacent to the call instruction.
3925 emit_thread_interrupt_checkpoint (mb);
3927 /* we need to convert byref arguments back and free string arrays */
3928 for (i = 0; i < sig->param_count; i++) {
3929 MonoType *t = sig->params [i];
3930 MonoMarshalSpec *spec = mspecs [i + 1];
3932 argnum = i + sig->hasthis;
3934 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3937 MonoMethod *get_instance;
3938 MonoMethod *cleanup_native;
3940 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3941 g_assert (mtype != NULL);
3942 mklass = mono_class_from_mono_type (mtype);
3943 g_assert (mklass != NULL);
3945 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3946 g_assert (get_instance);
3947 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3948 g_assert (get_instance);
3951 case MONO_TYPE_CLASS:
3952 case MONO_TYPE_OBJECT:
3953 case MONO_TYPE_STRING:
3954 case MONO_TYPE_ARRAY:
3955 case MONO_TYPE_SZARRAY:
3956 case MONO_TYPE_VALUETYPE:
3957 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3959 mono_mb_emit_byte (mb, CEE_CALL);
3960 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3962 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3964 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3965 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3970 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3971 g_assert_not_reached ();
3977 if (spec && spec->native == MONO_NATIVE_ASANY) {
3978 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3980 mono_mb_emit_ldarg (mb, argnum);
3981 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3982 mono_mb_emit_icon (mb, encoding);
3983 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3984 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
3985 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ASANY);
3990 case MONO_TYPE_STRING:
3991 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3992 mono_mb_emit_ldarg (mb, argnum);
3993 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3994 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3995 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3996 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3997 mono_mb_emit_byte (mb, CEE_STIND_I);
3999 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4000 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4001 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4004 case MONO_TYPE_CLASS:
4005 case MONO_TYPE_OBJECT:
4006 if (t->data.klass == mono_defaults.stringbuilder_class) {
4007 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4008 gboolean need_free = TRUE;
4010 g_assert (!t->byref);
4011 mono_mb_emit_ldarg (mb, argnum);
4012 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4014 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4017 case MONO_NATIVE_LPWSTR:
4018 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_SB);
4020 * mono_string_builder_to_utf16 does not allocate a
4021 * new buffer, so no need to free it.
4025 case MONO_NATIVE_LPSTR:
4026 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_SB);
4028 case MONO_NATIVE_LPTSTR:
4029 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPTSTR_SB);
4032 g_assert_not_reached ();
4036 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4037 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4038 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4043 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4046 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4047 /* allocate a new object new object */
4048 mono_mb_emit_ldarg (mb, argnum);
4049 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4050 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4051 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4052 mono_mb_emit_byte (mb, CEE_STIND_I);
4055 /* dst = *argument */
4056 mono_mb_emit_ldarg (mb, argnum);
4059 mono_mb_emit_byte (mb, CEE_LDIND_I);
4061 mono_mb_emit_byte (mb, CEE_STLOC_1);
4063 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4064 mono_mb_emit_byte (mb, CEE_BRFALSE);
4066 mono_mb_emit_i4 (mb, 0);
4068 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4069 mono_mb_emit_icon (mb, sizeof (MonoObject));
4070 mono_mb_emit_byte (mb, CEE_ADD);
4071 mono_mb_emit_byte (mb, CEE_STLOC_1);
4073 /* src = tmp_locals [i] */
4074 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4075 mono_mb_emit_byte (mb, CEE_STLOC_0);
4077 /* emit valuetype conversion code */
4078 emit_struct_conv (mb, klass, TRUE);
4080 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4082 case MONO_TYPE_VALUETYPE:
4086 klass = t->data.klass;
4087 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4088 klass->blittable || klass->enumtype)
4091 /* dst = argument */
4092 mono_mb_emit_ldarg (mb, argnum);
4093 mono_mb_emit_byte (mb, CEE_STLOC_1);
4095 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4096 mono_mb_emit_byte (mb, CEE_BRFALSE);
4098 mono_mb_emit_i4 (mb, 0);
4100 /* src = tmp_locals [i] */
4101 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4102 mono_mb_emit_byte (mb, CEE_STLOC_0);
4104 /* emit valuetype conversion code */
4105 emit_struct_conv (mb, klass, TRUE);
4107 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4109 case MONO_TYPE_SZARRAY:
4113 klass = mono_class_from_mono_type (t);
4115 if (klass->element_class == mono_defaults.string_class) {
4116 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4117 g_assert (tmp_locals [i]);
4119 mono_mb_emit_ldarg (mb, argnum);
4120 mono_mb_emit_byte (mb, CEE_BRFALSE);
4122 mono_mb_emit_i4 (mb, 0);
4124 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4127 case MONO_NATIVE_LPWSTR:
4129 * The array elements point to the managed string data so
4130 * they don't need to be freed.
4132 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4133 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4136 mono_mb_emit_ldarg (mb, argnum);
4137 mono_mb_emit_byte (mb, CEE_LDLEN);
4138 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4139 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4140 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ARRAY);
4144 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4147 /* Character arrays are implicitly marshalled as [Out] */
4148 if ((klass->element_class == mono_defaults.char_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4149 /* FIXME: Optimize blittable case */
4151 guint32 label1, label2, label3;
4152 int index_var, src_ptr;
4154 eklass = klass->element_class;
4155 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4158 mono_mb_emit_ldarg (mb, argnum);
4159 mono_mb_emit_byte (mb, CEE_BRFALSE);
4161 mono_mb_emit_i4 (mb, 0);
4163 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4164 mono_mb_emit_stloc (mb, src_ptr);
4166 /* Emit marshalling loop */
4167 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4168 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4169 mono_mb_emit_stloc (mb, index_var);
4171 mono_mb_emit_ldloc (mb, index_var);
4172 mono_mb_emit_ldarg (mb, argnum);
4173 mono_mb_emit_byte (mb, CEE_LDLEN);
4174 mono_mb_emit_byte (mb, CEE_BGE);
4176 mono_mb_emit_i4 (mb, 0);
4178 /* Emit marshalling code */
4180 /* set the src_ptr */
4181 mono_mb_emit_ldloc (mb, src_ptr);
4182 mono_mb_emit_byte (mb, CEE_STLOC_0);
4185 mono_mb_emit_ldarg (mb, argnum);
4186 mono_mb_emit_ldloc (mb, index_var);
4187 mono_mb_emit_byte (mb, CEE_LDELEMA);
4188 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4189 mono_mb_emit_byte (mb, CEE_STLOC_1);
4191 /* emit valuetype conversion code */
4192 emit_struct_conv (mb, eklass, TRUE);
4194 mono_mb_emit_add_to_local (mb, index_var, 1);
4195 mono_mb_emit_add_to_local (mb, src_ptr, mono_class_native_size (eklass, NULL));
4197 mono_mb_emit_byte (mb, CEE_BR);
4198 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4200 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4201 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4204 case MONO_TYPE_BOOLEAN:
4207 mono_mb_emit_ldarg (mb, argnum);
4208 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4209 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4210 mono_mb_emit_byte (mb, CEE_NEG);
4211 mono_mb_emit_byte (mb, CEE_STIND_I1);
4215 if (!MONO_TYPE_IS_VOID(sig->ret))
4216 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4218 mono_mb_emit_byte (mb, CEE_RET);
4220 csig = mono_metadata_signature_dup (sig);
4222 res = mono_mb_create_and_cache (cache, method,
4223 mb, csig, csig->param_count + 16);
4226 for (i = sig->param_count; i >= 0; i--)
4227 g_free (mspecs [i]);
4230 //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));
4236 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4238 static MonoReflectionType *
4239 type_from_handle (MonoType *handle)
4241 MonoDomain *domain = mono_domain_get ();
4242 MonoClass *klass = mono_class_from_mono_type (handle);
4244 MONO_ARCH_SAVE_REGS;
4246 mono_class_init (klass);
4247 return mono_type_get_object (domain, handle);
4251 * mono_marshal_get_isinst:
4252 * @klass: the type of the field
4254 * This method generates a function which can be used to check if an object is
4255 * an instance of the given type, icluding the case where the object is a proxy.
4256 * The generated function has the following signature:
4257 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4260 mono_marshal_get_isinst (MonoClass *klass)
4262 static MonoMethodSignature *isint_sig = NULL;
4263 static GHashTable *isinst_hash = NULL;
4265 int pos_was_ok, pos_failed, pos_end, pos_end2;
4267 MonoMethodBuilder *mb;
4269 EnterCriticalSection (&marshal_mutex);
4271 isinst_hash = g_hash_table_new (NULL, NULL);
4273 res = g_hash_table_lookup (isinst_hash, klass);
4274 LeaveCriticalSection (&marshal_mutex);
4279 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4280 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4281 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4282 isint_sig->pinvoke = 0;
4285 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4286 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4289 mb->method->save_lmf = 1;
4291 /* check if the object is a proxy that needs special cast */
4292 mono_mb_emit_ldarg (mb, 0);
4293 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4294 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4295 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4297 /* The result of MONO_ISINST can be:
4298 0) the type check succeeded
4299 1) the type check did not succeed
4300 2) a CanCastTo call is needed */
4302 mono_mb_emit_byte (mb, CEE_DUP);
4303 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4305 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4306 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4308 /* get the real proxy from the transparent proxy*/
4310 mono_mb_emit_ldarg (mb, 0);
4311 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4312 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4316 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4317 mono_mb_emit_byte (mb, CEE_LDNULL);
4318 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4322 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4323 mono_mb_emit_byte (mb, CEE_POP);
4324 mono_mb_emit_ldarg (mb, 0);
4328 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4329 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4330 mono_mb_emit_byte (mb, CEE_RET);
4332 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4339 * mono_marshal_get_castclass:
4340 * @klass: the type of the field
4342 * This method generates a function which can be used to cast an object to
4343 * an instance of the given type, icluding the case where the object is a proxy.
4344 * The generated function has the following signature:
4345 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4348 mono_marshal_get_castclass (MonoClass *klass)
4350 static MonoMethodSignature *castclass_sig = NULL;
4351 static GHashTable *castclass_hash = NULL;
4353 int pos_was_ok, pos_was_ok2;
4355 MonoMethodBuilder *mb;
4357 EnterCriticalSection (&marshal_mutex);
4358 if (!castclass_hash)
4359 castclass_hash = g_hash_table_new (NULL, NULL);
4361 res = g_hash_table_lookup (castclass_hash, klass);
4362 LeaveCriticalSection (&marshal_mutex);
4366 if (!castclass_sig) {
4367 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4368 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4369 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4370 castclass_sig->pinvoke = 0;
4373 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4374 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4377 mb->method->save_lmf = 1;
4379 /* check if the object is a proxy that needs special cast */
4380 mono_mb_emit_ldarg (mb, 0);
4381 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4382 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4383 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4385 /* The result of MONO_ISINST can be:
4386 0) the cast is valid
4387 1) cast of unknown proxy type
4388 or an exception if the cast is is invalid
4391 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4393 /* get the real proxy from the transparent proxy*/
4395 mono_mb_emit_ldarg (mb, 0);
4396 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4397 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4400 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4403 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4404 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4405 mono_mb_emit_ldarg (mb, 0);
4408 mono_mb_emit_byte (mb, CEE_RET);
4410 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4417 mono_marshal_get_proxy_cancast (MonoClass *klass)
4419 static MonoMethodSignature *from_handle_sig = NULL;
4420 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4421 static MonoMethodSignature *isint_sig = NULL;
4422 static GHashTable *proxy_isinst_hash = NULL;
4424 int pos_failed, pos_end;
4426 MonoMethod *can_cast_to;
4427 MonoMethodDesc *desc;
4428 MonoMethodBuilder *mb;
4430 EnterCriticalSection (&marshal_mutex);
4431 if (!proxy_isinst_hash)
4432 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4434 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4435 LeaveCriticalSection (&marshal_mutex);
4440 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4441 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4442 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4443 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4444 upgrade_proxy_sig->pinvoke = 1;
4446 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4447 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4448 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4450 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4451 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4452 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4453 isint_sig->pinvoke = 0;
4456 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4457 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4460 mb->method->save_lmf = 1;
4462 /* get the real proxy from the transparent proxy*/
4463 mono_mb_emit_ldarg (mb, 0);
4464 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4465 mono_mb_emit_byte (mb, CEE_LDIND_I);
4467 /* get the refletion type from the type handle */
4468 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4469 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4470 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4471 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4473 mono_mb_emit_ldarg (mb, 0);
4475 /* make the call to CanCastTo (type, ob) */
4476 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4477 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4478 g_assert (can_cast_to);
4479 mono_method_desc_free (desc);
4480 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4481 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4484 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4486 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4487 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4488 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4489 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4490 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4491 mono_mb_emit_ldarg (mb, 0);
4493 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4494 emit_thread_interrupt_checkpoint (mb);
4496 mono_mb_emit_ldarg (mb, 0);
4497 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4501 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4502 mono_mb_emit_byte (mb, CEE_LDNULL);
4506 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4507 mono_mb_emit_byte (mb, CEE_RET);
4509 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4516 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4519 klass = mono_class_from_mono_type (rtype->type);
4520 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4521 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4525 * mono_marshal_get_struct_to_ptr:
4528 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4531 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4533 MonoMethodBuilder *mb;
4534 static MonoMethod *stoptr = NULL;
4537 g_assert (klass != NULL);
4539 if (klass->str_to_ptr)
4540 return klass->str_to_ptr;
4543 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4546 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4548 if (klass->blittable) {
4549 mono_mb_emit_byte (mb, CEE_LDARG_1);
4550 mono_mb_emit_byte (mb, CEE_LDARG_0);
4551 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4552 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4553 mono_mb_emit_byte (mb, CEE_PREFIX1);
4554 mono_mb_emit_byte (mb, CEE_CPBLK);
4557 /* allocate local 0 (pointer) src_ptr */
4558 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4559 /* allocate local 1 (pointer) dst_ptr */
4560 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4561 /* allocate local 2 (boolean) delete_old */
4562 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4563 mono_mb_emit_byte (mb, CEE_LDARG_2);
4564 mono_mb_emit_byte (mb, CEE_STLOC_2);
4566 /* initialize src_ptr to point to the start of object data */
4567 mono_mb_emit_byte (mb, CEE_LDARG_0);
4568 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4569 mono_mb_emit_byte (mb, CEE_STLOC_0);
4571 /* initialize dst_ptr */
4572 mono_mb_emit_byte (mb, CEE_LDARG_1);
4573 mono_mb_emit_byte (mb, CEE_STLOC_1);
4575 emit_struct_conv (mb, klass, FALSE);
4578 mono_mb_emit_byte (mb, CEE_RET);
4580 res = mono_mb_create_method (mb, stoptr->signature, 0);
4583 klass->str_to_ptr = res;
4588 * mono_marshal_get_ptr_to_struct:
4591 * generates IL code for PtrToStructure (IntPtr src, object structure)
4594 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4596 MonoMethodBuilder *mb;
4597 static MonoMethod *ptostr = NULL;
4600 g_assert (klass != NULL);
4602 if (klass->ptr_to_str)
4603 return klass->ptr_to_str;
4606 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4609 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4611 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4612 mono_mb_emit_byte (mb, CEE_LDARG_1);
4613 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4614 mono_mb_emit_byte (mb, CEE_LDARG_0);
4615 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4616 mono_mb_emit_byte (mb, CEE_PREFIX1);
4617 mono_mb_emit_byte (mb, CEE_CPBLK);
4620 /* allocate local 0 (pointer) src_ptr */
4621 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4622 /* allocate local 1 (pointer) dst_ptr */
4623 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4625 /* initialize src_ptr to point to the start of object data */
4626 mono_mb_emit_byte (mb, CEE_LDARG_0);
4627 mono_mb_emit_byte (mb, CEE_STLOC_0);
4629 /* initialize dst_ptr */
4630 mono_mb_emit_byte (mb, CEE_LDARG_1);
4631 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4632 mono_mb_emit_byte (mb, CEE_STLOC_1);
4634 emit_struct_conv (mb, klass, TRUE);
4637 mono_mb_emit_byte (mb, CEE_RET);
4639 res = mono_mb_create_method (mb, ptostr->signature, 0);
4642 klass->ptr_to_str = res;
4647 * generates IL code for the synchronized wrapper: the generated method
4648 * calls METHOD while locking 'this' or the parent type.
4651 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
4653 static MonoMethodSignature *from_handle_sig = NULL;
4654 static MonoMethod *enter_method, *exit_method;
4655 MonoMethodSignature *sig;
4656 MonoExceptionClause *clause;
4657 MonoMethodHeader *header;
4658 MonoMethodBuilder *mb;
4661 int i, pos, this_local, ret_local;
4665 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
4668 cache = method->klass->image->synchronized_cache;
4669 if ((res = mono_marshal_find_in_cache (cache, method)))
4672 sig = method->signature;
4674 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
4677 if (!MONO_TYPE_IS_VOID (sig->ret))
4678 ret_local = mono_mb_add_local (mb, sig->ret);
4681 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4683 clause = g_new0 (MonoExceptionClause, 1);
4684 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
4686 if (!enter_method) {
4687 MonoMethodDesc *desc;
4689 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
4690 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4691 g_assert (enter_method);
4692 mono_method_desc_free (desc);
4693 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
4694 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4695 g_assert (exit_method);
4696 mono_method_desc_free (desc);
4699 * GetTypeFromHandle isn't called as a managed method because it has
4700 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
4701 * transformed into something else by the JIT.
4703 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4704 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4705 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4708 /* Push this or the type object */
4709 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
4710 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4711 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4712 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
4713 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4716 mono_mb_emit_ldarg (mb, 0);
4717 mono_mb_emit_stloc (mb, this_local);
4719 /* Call Monitor::Enter() */
4720 mono_mb_emit_ldloc (mb, this_local);
4721 mono_mb_emit_managed_call (mb, enter_method, NULL);
4723 clause->try_offset = mb->pos;
4725 /* Call the method */
4727 mono_mb_emit_ldarg (mb, 0);
4728 for (i = 0; i < sig->param_count; i++)
4729 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
4730 mono_mb_emit_managed_call (mb, method, method->signature);
4731 if (!MONO_TYPE_IS_VOID (sig->ret))
4732 mono_mb_emit_stloc (mb, ret_local);
4734 mono_mb_emit_byte (mb, CEE_LEAVE);
4736 mono_mb_emit_i4 (mb, 0);
4738 clause->try_len = mb->pos - clause->try_offset;
4739 clause->handler_offset = mb->pos;
4741 /* Call Monitor::Exit() */
4742 mono_mb_emit_ldloc (mb, this_local);
4743 // mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit);
4744 mono_mb_emit_managed_call (mb, exit_method, NULL);
4745 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
4747 clause->handler_len = mb->pos - clause->handler_offset;
4749 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4750 if (!MONO_TYPE_IS_VOID (sig->ret))
4751 mono_mb_emit_ldloc (mb, ret_local);
4752 mono_mb_emit_byte (mb, CEE_RET);
4754 res = mono_mb_create_and_cache (cache, method,
4755 mb, sig, sig->param_count + 16);
4758 header = ((MonoMethodNormal *)res)->header;
4759 header->num_clauses = 1;
4760 header->clauses = clause;
4765 /* FIXME: on win32 we should probably use GlobalAlloc(). */
4767 mono_marshal_alloc (gpointer size)
4769 MONO_ARCH_SAVE_REGS;
4771 return g_try_malloc ((gulong)size);
4775 mono_marshal_free (gpointer ptr)
4777 MONO_ARCH_SAVE_REGS;
4783 mono_marshal_free_array (gpointer *ptr, int size)
4790 for (i = 0; i < size; i++)
4796 mono_marshal_realloc (gpointer ptr, gpointer size)
4798 MONO_ARCH_SAVE_REGS;
4800 return g_try_realloc (ptr, (gulong)size);
4804 mono_marshal_string_array (MonoArray *array)
4812 len = mono_array_length (array);
4814 result = g_malloc (sizeof (char *) * (len + 1));
4815 for (i = 0; i < len; ++i) {
4816 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4817 result [i] = s ? mono_string_to_utf8 (s): NULL;
4819 /* null terminate the array */
4826 mono_marshal_string_array_to_unicode (MonoArray *array)
4834 len = mono_array_length (array);
4836 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
4837 for (i = 0; i < len; ++i) {
4838 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4839 result [i] = s ? mono_string_chars (s) : NULL;
4841 /* null terminate the array */
4848 * mono_marshal_set_last_error:
4850 * This function is invoked to set the last error value from a P/Invoke call
4851 * which has SetLastError set.
4854 mono_marshal_set_last_error (void)
4857 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
4859 TlsSetValue (last_error_tls_id, (gpointer)errno);
4864 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
4865 gpointer dest, gint32 length)
4870 MONO_ARCH_SAVE_REGS;
4872 MONO_CHECK_ARG_NULL (src);
4873 MONO_CHECK_ARG_NULL (dest);
4875 g_assert (src->obj.vtable->klass->rank == 1);
4876 g_assert (start_index >= 0);
4877 g_assert (length >= 0);
4878 g_assert (start_index + length <= mono_array_length (src));
4880 element_size = mono_array_element_size (src->obj.vtable->klass);
4882 source_addr = mono_array_addr_with_size (src, element_size, start_index);
4884 memcpy (dest, source_addr, length * element_size);
4888 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
4889 MonoArray *dest, gint32 length)
4894 MONO_ARCH_SAVE_REGS;
4896 MONO_CHECK_ARG_NULL (src);
4897 MONO_CHECK_ARG_NULL (dest);
4899 g_assert (dest->obj.vtable->klass->rank == 1);
4900 g_assert (start_index >= 0);
4901 g_assert (length >= 0);
4902 g_assert (start_index + length <= mono_array_length (dest));
4904 element_size = mono_array_element_size (dest->obj.vtable->klass);
4906 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
4908 memcpy (dest_addr, src, length * element_size);
4911 #if NO_UNALIGNED_ACCESS
4912 #define RETURN_UNALIGNED(type, addr) \
4915 memcpy(&val, p + offset, sizeof(val)); \
4918 #define WRITE_UNALIGNED(type, addr, val) \
4919 memcpy(addr, &val, sizeof(type))
4921 #define RETURN_UNALIGNED(type, addr) \
4922 return *(type*)(p + offset);
4923 #define WRITE_UNALIGNED(type, addr, val) \
4924 (*(type *)(addr) = (val))
4928 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
4932 MONO_ARCH_SAVE_REGS;
4934 RETURN_UNALIGNED(gpointer, p + offset);
4938 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
4942 MONO_ARCH_SAVE_REGS;
4944 return *(unsigned char*)(p + offset);
4948 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
4952 MONO_ARCH_SAVE_REGS;
4954 RETURN_UNALIGNED(gint16, p + offset);
4958 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
4962 MONO_ARCH_SAVE_REGS;
4964 RETURN_UNALIGNED(gint32, p + offset);
4968 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
4972 MONO_ARCH_SAVE_REGS;
4974 RETURN_UNALIGNED(gint64, p + offset);
4978 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
4982 MONO_ARCH_SAVE_REGS;
4984 *(unsigned char*)(p + offset) = val;
4988 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
4992 MONO_ARCH_SAVE_REGS;
4994 WRITE_UNALIGNED(gpointer, p + offset, val);
4998 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5002 MONO_ARCH_SAVE_REGS;
5004 WRITE_UNALIGNED(gint16, p + offset, val);
5008 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5012 MONO_ARCH_SAVE_REGS;
5014 WRITE_UNALIGNED(gint32, p + offset, val);
5018 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5022 MONO_ARCH_SAVE_REGS;
5024 WRITE_UNALIGNED(gint64, p + offset, val);
5028 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5030 MONO_ARCH_SAVE_REGS;
5033 return mono_string_new (mono_domain_get (), "");
5035 return mono_string_new (mono_domain_get (), ptr);
5039 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5041 MONO_ARCH_SAVE_REGS;
5044 return mono_string_new (mono_domain_get (), "");
5046 return mono_string_new_len (mono_domain_get (), ptr, len);
5050 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5052 MonoDomain *domain = mono_domain_get ();
5056 MONO_ARCH_SAVE_REGS;
5059 return mono_string_new (mono_domain_get (), "");
5064 return mono_string_new_utf16 (domain, ptr, len);
5068 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5070 MonoDomain *domain = mono_domain_get ();
5072 MONO_ARCH_SAVE_REGS;
5075 return mono_string_new (mono_domain_get (), "");
5077 return mono_string_new_utf16 (domain, ptr, len);
5081 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5083 MONO_ARCH_SAVE_REGS;
5085 g_warning ("PtrToStringBSTR not implemented");
5086 g_assert_not_reached ();
5092 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5094 MONO_ARCH_SAVE_REGS;
5096 return ((guint32)TlsGetValue (last_error_tls_id));
5100 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5106 MONO_ARCH_SAVE_REGS;
5108 MONO_CHECK_ARG_NULL (rtype);
5111 klass = mono_class_from_mono_type (type);
5112 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5114 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5118 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5119 exc = mono_get_exception_argument ("t", msg);
5121 mono_raise_exception (exc);
5125 return mono_class_native_size (klass, NULL);
5129 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5134 MONO_ARCH_SAVE_REGS;
5136 MONO_CHECK_ARG_NULL (obj);
5137 MONO_CHECK_ARG_NULL (dst);
5139 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5143 pa [2] = &delete_old;
5145 mono_runtime_invoke (method, NULL, pa, NULL);
5149 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5154 MONO_ARCH_SAVE_REGS;
5156 MONO_CHECK_ARG_NULL (src);
5157 MONO_CHECK_ARG_NULL (dst);
5159 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5164 mono_runtime_invoke (method, NULL, pa, NULL);
5168 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5170 MonoDomain *domain = mono_domain_get ();
5173 MONO_ARCH_SAVE_REGS;
5175 MONO_CHECK_ARG_NULL (src);
5176 MONO_CHECK_ARG_NULL (type);
5178 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5180 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5186 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5188 MonoMarshalType *info;
5191 int i, match_index = -1;
5193 MONO_ARCH_SAVE_REGS;
5195 MONO_CHECK_ARG_NULL (type);
5196 MONO_CHECK_ARG_NULL (field_name);
5198 fname = mono_string_to_utf8 (field_name);
5199 klass = mono_class_from_mono_type (type->type);
5201 while(klass && match_index == -1) {
5202 for (i = 0; i < klass->field.count; ++i) {
5203 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5209 if(match_index == -1)
5210 klass = klass->parent;
5215 if(match_index == -1) {
5219 /* Get back original class instance */
5220 klass = mono_class_from_mono_type (type->type);
5222 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5223 exc = mono_get_exception_argument ("fieldName", tmp);
5226 mono_raise_exception ((MonoException*)exc);
5229 info = mono_marshal_load_type_info (klass);
5230 return info->fields [match_index].offset;
5234 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5236 MONO_ARCH_SAVE_REGS;
5238 return mono_string_to_utf8 (string);
5242 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5244 MONO_ARCH_SAVE_REGS;
5249 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5253 mono_struct_delete_old (MonoClass *klass, char *ptr)
5255 MonoMarshalType *info;
5258 info = mono_marshal_load_type_info (klass);
5260 for (i = 0; i < info->num_fields; i++) {
5261 MonoMarshalNative ntype;
5262 MonoMarshalConv conv;
5263 MonoType *ftype = info->fields [i].field->type;
5266 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5269 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5270 klass->unicode, &conv);
5272 cpos = ptr + info->fields [i].offset;
5275 case MONO_MARSHAL_CONV_NONE:
5276 if (MONO_TYPE_ISSTRUCT (ftype)) {
5277 mono_struct_delete_old (ftype->data.klass, cpos);
5281 case MONO_MARSHAL_CONV_STR_LPWSTR:
5282 case MONO_MARSHAL_CONV_STR_LPSTR:
5283 case MONO_MARSHAL_CONV_STR_LPTSTR:
5284 case MONO_MARSHAL_CONV_STR_BSTR:
5285 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5286 case MONO_MARSHAL_CONV_STR_TBSTR:
5287 g_free (*(gpointer *)cpos);
5296 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5300 MONO_ARCH_SAVE_REGS;
5302 MONO_CHECK_ARG_NULL (src);
5303 MONO_CHECK_ARG_NULL (type);
5305 klass = mono_class_from_mono_type (type->type);
5307 mono_struct_delete_old (klass, (char *)src);
5311 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5313 /* FIXME: Call AllocCoTaskMem under windows */
5314 MONO_ARCH_SAVE_REGS;
5316 return g_try_malloc ((gulong)size);
5320 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5322 /* FIXME: Call FreeCoTaskMem under windows */
5323 MONO_ARCH_SAVE_REGS;
5329 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5331 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5335 mono_marshal_load_type_info (MonoClass* klass)
5337 int i, j, count = 0, native_size = 0, min_align = 1;
5338 MonoMarshalType *info;
5341 g_assert (klass != NULL);
5343 if (klass->marshal_info)
5344 return klass->marshal_info;
5347 mono_class_init (klass);
5349 for (i = 0; i < klass->field.count; ++i) {
5350 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5352 if (mono_field_is_deleted (&klass->fields [i]))
5357 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5359 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5360 info->num_fields = count;
5362 /* Try to find a size for this type in metadata */
5363 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5365 if (klass->parent) {
5366 int parent_size = mono_class_native_size (klass->parent, NULL);
5368 /* Add parent size to real size */
5369 native_size += parent_size;
5370 info->native_size = parent_size;
5373 for (j = i = 0; i < klass->field.count; ++i) {
5376 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5379 if (mono_field_is_deleted (&klass->fields [i]))
5381 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5382 mono_metadata_field_info (klass->image, klass->field.first + i,
5383 NULL, NULL, &info->fields [j].mspec);
5385 info->fields [j].field = &klass->fields [i];
5387 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5388 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5389 /* This field is a hack inserted by MCS to empty structures */
5394 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5395 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
5396 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5397 &align, TRUE, klass->unicode);
5398 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5399 min_align = MAX (align, min_align);
5400 info->fields [j].offset = info->native_size;
5401 info->fields [j].offset += align - 1;
5402 info->fields [j].offset &= ~(align - 1);
5403 info->native_size = info->fields [j].offset + size;
5405 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5406 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5407 &align, TRUE, klass->unicode);
5408 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5409 min_align = MAX (align, min_align);
5410 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5411 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
5417 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5418 info->native_size = MAX (native_size, info->native_size);
5421 if (info->native_size & (min_align - 1)) {
5422 info->native_size += min_align - 1;
5423 info->native_size &= ~(min_align - 1);
5426 /* Update the class's blittable info, if the layouts don't match */
5427 if (info->native_size != mono_class_value_size (klass, NULL))
5428 klass->blittable = FALSE;
5430 /* If this is an array type, ensure that we have element info */
5431 if (klass->element_class) {
5432 mono_marshal_load_type_info (klass->element_class);
5435 return klass->marshal_info;
5439 * mono_class_native_size:
5442 * Returns: the native size of an object instance (when marshaled
5443 * to unmanaged code)
5446 mono_class_native_size (MonoClass *klass, guint32 *align)
5449 if (!klass->marshal_info)
5450 mono_marshal_load_type_info (klass);
5453 *align = klass->min_align;
5455 return klass->marshal_info->native_size;
5459 * mono_type_native_stack_size:
5460 * @t: the type to return the size it uses on the stack
5462 * Returns: the number of bytes required to hold an instance of this
5463 * type on the native stack
5466 mono_type_native_stack_size (MonoType *t, gint *align)
5470 g_assert (t != NULL);
5481 case MONO_TYPE_BOOLEAN:
5482 case MONO_TYPE_CHAR:
5491 case MONO_TYPE_STRING:
5492 case MONO_TYPE_OBJECT:
5493 case MONO_TYPE_CLASS:
5494 case MONO_TYPE_SZARRAY:
5496 case MONO_TYPE_FNPTR:
5497 case MONO_TYPE_ARRAY:
5498 case MONO_TYPE_TYPEDBYREF:
5509 case MONO_TYPE_VALUETYPE: {
5512 if (t->data.klass->enumtype)
5513 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
5515 size = mono_class_native_size (t->data.klass, align);
5516 *align = *align + 3;
5526 g_error ("type 0x%02x unknown", t->type);
5531 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
5532 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
5533 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
5534 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
5537 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
5538 gboolean as_field, gboolean unicode)
5540 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
5543 switch (native_type) {
5544 case MONO_NATIVE_BOOLEAN:
5547 case MONO_NATIVE_I1:
5548 case MONO_NATIVE_U1:
5551 case MONO_NATIVE_I2:
5552 case MONO_NATIVE_U2:
5553 case MONO_NATIVE_VARIANTBOOL:
5556 case MONO_NATIVE_I4:
5557 case MONO_NATIVE_U4:
5558 case MONO_NATIVE_ERROR:
5561 case MONO_NATIVE_I8:
5562 case MONO_NATIVE_U8:
5563 *align = ALIGNMENT(guint64);
5565 case MONO_NATIVE_R4:
5568 case MONO_NATIVE_R8:
5569 *align = ALIGNMENT(double);
5571 case MONO_NATIVE_INT:
5572 case MONO_NATIVE_UINT:
5573 case MONO_NATIVE_LPSTR:
5574 case MONO_NATIVE_LPWSTR:
5575 case MONO_NATIVE_LPTSTR:
5576 case MONO_NATIVE_BSTR:
5577 case MONO_NATIVE_ANSIBSTR:
5578 case MONO_NATIVE_TBSTR:
5579 case MONO_NATIVE_LPARRAY:
5580 case MONO_NATIVE_SAFEARRAY:
5581 case MONO_NATIVE_IUNKNOWN:
5582 case MONO_NATIVE_IDISPATCH:
5583 case MONO_NATIVE_INTERFACE:
5584 case MONO_NATIVE_ASANY:
5585 case MONO_NATIVE_FUNC:
5586 case MONO_NATIVE_LPSTRUCT:
5587 *align = ALIGNMENT(gpointer);
5588 return sizeof (gpointer);
5589 case MONO_NATIVE_STRUCT:
5590 klass = mono_class_from_mono_type (type);
5591 return mono_class_native_size (klass, align);
5592 case MONO_NATIVE_BYVALTSTR: {
5593 int esize = unicode ? 2: 1;
5596 return mspec->data.array_data.num_elem * esize;
5598 case MONO_NATIVE_BYVALARRAY: {
5600 klass = mono_class_from_mono_type (type);
5601 esize = mono_class_native_size (klass->element_class, align);
5603 return mspec->data.array_data.num_elem * esize;
5605 case MONO_NATIVE_CUSTOM:
5606 g_assert_not_reached ();
5608 case MONO_NATIVE_CURRENCY:
5609 case MONO_NATIVE_VBBYREFSTR:
5611 g_error ("native type %02x not implemented", native_type);
5614 g_assert_not_reached ();
5619 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
5627 t = &o->vtable->klass->byval_arg;
5634 case MONO_TYPE_BOOLEAN:
5637 case MONO_TYPE_CHAR:
5642 return mono_object_unbox (o);
5644 case MONO_TYPE_STRING:
5645 switch (string_encoding) {
5646 case MONO_NATIVE_LPWSTR:
5647 return mono_string_to_utf16 ((MonoString*)o);
5649 case MONO_NATIVE_LPSTR:
5650 return mono_string_to_utf8 ((MonoString*)o);
5653 g_warning ("marshaling conversion %d not implemented", string_encoding);
5654 g_assert_not_reached ();
5657 case MONO_TYPE_CLASS:
5658 case MONO_TYPE_VALUETYPE: {
5662 MonoBoolean delete_old = FALSE;
5664 klass = t->data.klass;
5666 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
5669 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5670 klass->blittable || klass->enumtype)
5671 return mono_object_unbox (o);
5673 res = g_malloc0 (mono_class_native_size (klass, NULL));
5675 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
5679 pa [2] = &delete_old;
5681 mono_runtime_invoke (method, NULL, pa, NULL);
5687 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
5693 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
5698 /* FIXME: Free embedded data as well */
5703 t = &o->vtable->klass->byval_arg;
5705 case MONO_TYPE_STRING:
5706 switch (string_encoding) {
5707 case MONO_NATIVE_LPWSTR:
5710 case MONO_NATIVE_LPSTR:
5714 g_warning ("marshaling conversion %d not implemented", string_encoding);
5715 g_assert_not_reached ();
5718 case MONO_TYPE_CLASS:
5719 case MONO_TYPE_VALUETYPE: {
5720 klass = t->data.klass;
5722 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5723 klass->blittable || klass->enumtype)