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, method->klass->valuetype? mono_object_unbox (this): 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);
1863 MonoMethodSignature *sig;
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;
1883 static MonoString *string_dummy = NULL;
1889 target_klass = method->klass;
1891 EnterCriticalSection (&marshal_mutex);
1893 if (method->string_ctor) {
1894 static GSList *strsig_list = NULL;
1898 for (item = strsig_list; item; item = item->next) {
1900 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
1906 callsig = mono_metadata_signature_dup (method->signature);
1907 callsig->ret = &mono_defaults.string_class->byval_arg;
1908 cs = g_new (CtorSigPair, 1);
1911 strsig_list = g_slist_prepend (strsig_list, cs);
1914 callsig = method->signature;
1917 cache = method->klass->image->runtime_invoke_cache;
1919 /* from mono_marshal_find_in_cache */
1920 res = g_hash_table_lookup (cache, callsig);
1921 LeaveCriticalSection (&marshal_mutex);
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);
1970 for (i = 0; i < sig->param_count; i++) {
1971 MonoType *t = sig->params [i];
1974 mono_mb_emit_ldarg (mb, 1);
1976 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
1977 mono_mb_emit_byte (mb, CEE_ADD);
1979 mono_mb_emit_byte (mb, CEE_LDIND_I);
1984 type = sig->params [i]->type;
1988 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1990 case MONO_TYPE_BOOLEAN:
1992 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1995 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1998 case MONO_TYPE_CHAR:
1999 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2003 mono_mb_emit_byte (mb, CEE_LDIND_I);
2006 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2009 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2012 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2015 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2019 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2021 case MONO_TYPE_STRING:
2022 case MONO_TYPE_CLASS:
2023 case MONO_TYPE_ARRAY:
2025 case MONO_TYPE_SZARRAY:
2026 case MONO_TYPE_OBJECT:
2029 case MONO_TYPE_VALUETYPE:
2030 if (t->data.klass->enumtype) {
2031 type = t->data.klass->enum_basetype->type;
2034 mono_mb_emit_byte (mb, CEE_LDOBJ);
2035 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2038 g_assert_not_reached ();
2042 mono_mb_emit_ldarg (mb, 3);
2043 mono_mb_emit_calli (mb, callsig);
2045 if (sig->ret->byref) {
2047 g_assert_not_reached ();
2051 switch (sig->ret->type) {
2052 case MONO_TYPE_VOID:
2053 if (!method->string_ctor)
2054 mono_mb_emit_byte (mb, CEE_LDNULL);
2056 case MONO_TYPE_BOOLEAN:
2057 case MONO_TYPE_CHAR:
2070 case MONO_TYPE_VALUETYPE:
2071 /* box value types */
2072 mono_mb_emit_byte (mb, CEE_BOX);
2073 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2075 case MONO_TYPE_STRING:
2076 case MONO_TYPE_CLASS:
2077 case MONO_TYPE_ARRAY:
2078 case MONO_TYPE_SZARRAY:
2079 case MONO_TYPE_OBJECT:
2084 g_assert_not_reached ();
2087 mono_mb_emit_stloc (mb, 0);
2089 mono_mb_emit_byte (mb, CEE_LEAVE);
2091 mono_mb_emit_i4 (mb, 0);
2093 clause = g_new0 (MonoExceptionClause, 1);
2094 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2095 clause->try_len = mb->pos;
2098 clause->token_or_filter = mb->pos;
2100 mono_mb_emit_byte (mb, CEE_POP);
2101 mono_mb_emit_byte (mb, CEE_LDARG_2);
2102 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2103 mono_mb_emit_byte (mb, CEE_PREFIX1);
2104 mono_mb_emit_byte (mb, CEE_CGT_UN);
2105 mono_mb_emit_byte (mb, CEE_PREFIX1);
2106 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2108 clause->handler_offset = mb->pos;
2111 /* store exception */
2112 mono_mb_emit_stloc (mb, 1);
2114 mono_mb_emit_byte (mb, CEE_LDARG_2);
2115 mono_mb_emit_ldloc (mb, 1);
2116 mono_mb_emit_byte (mb, CEE_STIND_I);
2118 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2119 mono_mb_emit_stloc (mb, 0);
2121 mono_mb_emit_byte (mb, CEE_LEAVE);
2122 mono_mb_emit_i4 (mb, 0);
2124 clause->handler_len = mb->pos - clause->handler_offset;
2127 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2128 mono_mb_emit_ldloc (mb, 0);
2129 mono_mb_emit_byte (mb, CEE_RET);
2131 /* taken from mono_mb_create_and_cache */
2132 EnterCriticalSection (&marshal_mutex);
2134 res = g_hash_table_lookup (cache, callsig);
2135 /* Somebody may have created it before us */
2137 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2138 g_hash_table_insert (cache, callsig, res);
2139 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2142 LeaveCriticalSection (&marshal_mutex);
2143 /* end mono_mb_create_and_cache */
2147 header = ((MonoMethodNormal *)res)->header;
2148 header->num_clauses = 1;
2149 header->clauses = clause;
2155 * generates IL code to call managed methods from unmanaged code
2158 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2160 MonoMethodSignature *sig, *csig;
2161 MonoMethodBuilder *mb;
2162 MonoClass *klass = NULL;
2165 int i, pos = 0, *tmp_locals;
2166 static MonoMethodSignature *alloc_sig = NULL;
2169 g_assert (method != NULL);
2170 g_assert (!method->signature->pinvoke);
2172 cache = method->klass->image->managed_wrapper_cache;
2173 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2176 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2178 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2179 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2180 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2181 alloc_sig->pinvoke = 1;
2185 /* fime: howto free that memory ? */
2188 sig = method->signature;
2190 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2192 /* allocate local 0 (pointer) src_ptr */
2193 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2194 /* allocate local 1 (pointer) dst_ptr */
2195 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2196 /* allocate local 2 (boolean) delete_old */
2197 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2199 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2200 /* allocate local 3 to store the return value */
2201 mono_mb_add_local (mb, sig->ret);
2204 mono_mb_emit_icon (mb, 0);
2205 mono_mb_emit_byte (mb, CEE_STLOC_2);
2207 /* we copy the signature, so that we can modify it */
2208 csig = mono_metadata_signature_dup (sig);
2212 #ifdef PLATFORM_WIN32
2214 * Under windows, delegates passed to native code must use the STDCALL
2215 * calling convention.
2217 csig->call_convention = MONO_CALL_STDCALL;
2220 /* fixme: howto handle this ? */
2224 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2225 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2226 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2231 g_assert_not_reached ();
2236 /* we first do all conversions */
2237 tmp_locals = alloca (sizeof (int) * sig->param_count);
2238 for (i = 0; i < sig->param_count; i ++) {
2239 MonoType *t = sig->params [i];
2240 MonoMarshalSpec *spec = mspecs [i + 1];
2244 /* Ensure that we have marshalling info for this param */
2245 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2247 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2250 MonoMethod *marshal_native_to_managed;
2251 MonoMethod *get_instance;
2253 /* FIXME: Call CleanUpNativeData after the call */
2255 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2256 g_assert (mtype != NULL);
2257 mklass = mono_class_from_mono_type (mtype);
2258 g_assert (mklass != NULL);
2260 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2261 g_assert (marshal_native_to_managed);
2262 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2263 g_assert (get_instance);
2266 case MONO_TYPE_CLASS:
2267 case MONO_TYPE_OBJECT:
2268 case MONO_TYPE_STRING:
2269 case MONO_TYPE_ARRAY:
2270 case MONO_TYPE_SZARRAY:
2274 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2276 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2278 mono_mb_emit_byte (mb, CEE_CALL);
2279 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2281 mono_mb_emit_ldarg (mb, i);
2283 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2284 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2286 mono_mb_emit_stloc (mb, tmp_locals [i]);
2289 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2290 g_assert_not_reached ();
2297 case MONO_TYPE_CLASS: {
2298 klass = t->data.klass;
2300 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2302 if (klass->delegate) {
2303 g_assert (!t->byref);
2304 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2305 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2306 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2307 mono_mb_emit_ldarg (mb, i);
2308 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2309 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
2310 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_FTN_DEL);
2311 mono_mb_emit_stloc (mb, tmp_locals [i]);
2315 /* FIXME: Raise a MarshalDirectiveException here */
2316 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2318 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2319 mono_mb_emit_byte (mb, CEE_LDNULL);
2320 mono_mb_emit_stloc (mb, tmp_locals [i]);
2325 mono_mb_emit_ldarg (mb, i);
2329 /* Check for NULL and raise an exception */
2330 mono_mb_emit_byte (mb, CEE_BRTRUE);
2332 mono_mb_emit_i4 (mb, 0);
2334 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2336 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2337 mono_mb_emit_ldarg (mb, i);
2338 mono_mb_emit_byte (mb, CEE_LDIND_I);
2341 mono_mb_emit_byte (mb, CEE_STLOC_0);
2343 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2344 mono_mb_emit_stloc (mb, tmp_locals [i]);
2346 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2347 mono_mb_emit_byte (mb, CEE_BRFALSE);
2349 mono_mb_emit_i4 (mb, 0);
2351 /* Create and set dst */
2352 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2353 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2354 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2355 mono_mb_emit_stloc (mb, tmp_locals [i]);
2356 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2357 mono_mb_emit_icon (mb, sizeof (MonoObject));
2358 mono_mb_emit_byte (mb, CEE_ADD);
2359 mono_mb_emit_byte (mb, CEE_STLOC_1);
2361 /* emit valuetype conversion code */
2362 emit_struct_conv (mb, klass, TRUE);
2364 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2367 case MONO_TYPE_VALUETYPE:
2369 klass = sig->params [i]->data.klass;
2370 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2371 klass->blittable || klass->enumtype)
2374 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2376 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2380 mono_mb_emit_ldarg (mb, i);
2382 mono_mb_emit_ldarg_addr (mb, i);
2383 mono_mb_emit_byte (mb, CEE_STLOC_0);
2386 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2387 mono_mb_emit_byte (mb, CEE_BRFALSE);
2389 mono_mb_emit_i4 (mb, 0);
2392 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2393 mono_mb_emit_byte (mb, CEE_STLOC_1);
2395 /* emit valuetype conversion code */
2396 emit_struct_conv (mb, klass, TRUE);
2399 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2401 case MONO_TYPE_STRING: {
2402 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2407 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2408 csig->params [i] = &mono_defaults.int_class->byval_arg;
2410 mono_mb_emit_ldarg (mb, i);
2411 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2412 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2415 case MONO_NATIVE_LPWSTR:
2416 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
2418 case MONO_NATIVE_LPSTR:
2419 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
2422 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2423 MonoException *exc = mono_get_exception_not_implemented (msg);
2426 mono_raise_exception (exc);
2430 mono_mb_emit_stloc (mb, tmp_locals [i]);
2433 case MONO_TYPE_ARRAY:
2434 case MONO_TYPE_SZARRAY:
2438 klass = mono_class_from_mono_type (t);
2440 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2441 csig->params [i] = &mono_defaults.int_class->byval_arg;
2443 g_warning ("array marshaling not implemented");
2444 g_assert_not_reached ();
2449 for (i = 0; i < sig->param_count; i++) {
2450 MonoType *t = sig->params [i];
2453 case MONO_TYPE_BOOLEAN:
2467 mono_mb_emit_ldarg (mb, i);
2469 case MONO_TYPE_STRING:
2471 mono_mb_emit_ldarg (mb, i);
2473 g_assert (tmp_locals [i]);
2474 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2477 case MONO_TYPE_CLASS:
2479 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2481 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2483 case MONO_TYPE_ARRAY:
2484 case MONO_TYPE_SZARRAY:
2485 case MONO_TYPE_OBJECT:
2487 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2489 mono_mb_emit_ldarg (mb, i);
2491 case MONO_TYPE_VALUETYPE:
2492 klass = sig->params [i]->data.klass;
2493 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2494 klass->blittable || klass->enumtype) {
2495 mono_mb_emit_ldarg (mb, i);
2499 g_assert (tmp_locals [i]);
2501 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2503 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2506 g_warning ("type 0x%02x unknown", t->type);
2507 g_assert_not_reached ();
2511 emit_thread_interrupt_checkpoint (mb);
2512 mono_mb_emit_managed_call (mb, method, NULL);
2514 /* Ensure that we have marshalling info for the return */
2515 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2517 if (!sig->ret->byref) {
2518 switch (sig->ret->type) {
2519 case MONO_TYPE_VOID:
2521 case MONO_TYPE_BOOLEAN:
2535 case MONO_TYPE_OBJECT:
2536 mono_mb_emit_byte (mb, CEE_STLOC_3);
2538 case MONO_TYPE_STRING:
2539 csig->ret = &mono_defaults.int_class->byval_arg;
2541 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2542 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2543 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
2544 mono_mb_emit_byte (mb, CEE_STLOC_3);
2546 case MONO_TYPE_VALUETYPE:
2547 klass = sig->ret->data.klass;
2548 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2549 klass->blittable || klass->enumtype)
2552 /* load pointer to returned value type */
2553 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2554 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2556 /* store the address of the source into local variable 0 */
2557 mono_mb_emit_byte (mb, CEE_STLOC_0);
2558 /* allocate space for the native struct and
2559 * store the address into dst_ptr */
2560 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2561 g_assert (retobj_var);
2562 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2563 mono_mb_emit_byte (mb, CEE_CONV_I);
2564 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2565 emit_thread_interrupt_checkpoint (mb);
2566 mono_mb_emit_byte (mb, CEE_STLOC_1);
2567 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2568 mono_mb_emit_stloc (mb, retobj_var);
2570 /* emit valuetype conversion code */
2571 emit_struct_conv (mb, klass, FALSE);
2573 case MONO_TYPE_CLASS: {
2576 klass = sig->ret->data.klass;
2578 /* FIXME: Raise a MarshalDirectiveException here */
2579 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2581 mono_mb_emit_byte (mb, CEE_STLOC_0);
2582 /* Check for null */
2583 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2584 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2585 mono_mb_emit_byte (mb, CEE_LDNULL);
2586 mono_mb_emit_byte (mb, CEE_STLOC_3);
2587 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2589 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2592 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2593 mono_mb_emit_icon (mb, sizeof (MonoObject));
2594 mono_mb_emit_byte (mb, CEE_ADD);
2595 mono_mb_emit_byte (mb, CEE_STLOC_0);
2597 /* Allocate and set dest */
2598 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2599 mono_mb_emit_byte (mb, CEE_CONV_I);
2600 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2601 emit_thread_interrupt_checkpoint (mb);
2602 mono_mb_emit_byte (mb, CEE_DUP);
2603 mono_mb_emit_byte (mb, CEE_STLOC_1);
2604 mono_mb_emit_byte (mb, CEE_STLOC_3);
2606 emit_struct_conv (mb, klass, FALSE);
2608 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2612 g_warning ("return type 0x%02x unknown", sig->ret->type);
2613 g_assert_not_reached ();
2616 mono_mb_emit_byte (mb, CEE_STLOC_3);
2619 /* Convert byref arguments back */
2620 for (i = 0; i < sig->param_count; i ++) {
2621 MonoType *t = sig->params [i];
2627 case MONO_TYPE_CLASS: {
2630 klass = t->data.klass;
2632 /* Check for null */
2633 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2634 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2635 mono_mb_emit_ldarg (mb, i);
2636 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2637 mono_mb_emit_byte (mb, CEE_STIND_I);
2638 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2640 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2643 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2644 mono_mb_emit_icon (mb, sizeof (MonoObject));
2645 mono_mb_emit_byte (mb, CEE_ADD);
2646 mono_mb_emit_byte (mb, CEE_STLOC_0);
2648 /* Allocate and set dest */
2649 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2650 mono_mb_emit_byte (mb, CEE_CONV_I);
2651 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2652 emit_thread_interrupt_checkpoint (mb);
2653 mono_mb_emit_byte (mb, CEE_STLOC_1);
2655 /* Update argument pointer */
2656 mono_mb_emit_ldarg (mb, i);
2657 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2658 mono_mb_emit_byte (mb, CEE_STIND_I);
2660 /* emit valuetype conversion code */
2661 emit_struct_conv (mb, klass, FALSE);
2663 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2666 case MONO_TYPE_VALUETYPE: {
2669 klass = t->data.klass;
2671 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2672 klass->blittable || klass->enumtype) {
2676 /* Check for null */
2677 mono_mb_emit_ldarg (mb, i);
2678 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2681 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2682 mono_mb_emit_byte (mb, CEE_STLOC_0);
2685 mono_mb_emit_ldarg (mb, i);
2686 mono_mb_emit_byte (mb, CEE_STLOC_1);
2688 /* emit valuetype conversion code */
2689 emit_struct_conv (mb, klass, FALSE);
2691 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2698 mono_mb_emit_ldloc (mb, retobj_var);
2699 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2700 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2701 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2704 if (!MONO_TYPE_IS_VOID(sig->ret))
2705 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2706 mono_mb_emit_byte (mb, CEE_RET);
2710 res = mono_mb_create_and_cache (cache, method,
2711 mb, csig, sig->param_count + 16);
2713 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2716 //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));
2722 * mono_marshal_get_ldfld_wrapper:
2723 * @type: the type of the field
2725 * This method generates a function which can be use to load a field with type
2726 * @type from an object. The generated function has the following signature:
2727 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
2730 mono_marshal_get_ldfld_wrapper (MonoType *type)
2732 MonoMethodSignature *sig, *csig;
2733 MonoMethodBuilder *mb;
2736 static GHashTable *ldfld_hash = NULL;
2738 int t, pos0, pos1 = 0;
2743 if (type->type == MONO_TYPE_SZARRAY) {
2744 klass = mono_defaults.array_class;
2745 } else if (type->type == MONO_TYPE_VALUETYPE) {
2746 klass = type->data.klass;
2747 if (klass->enumtype) {
2748 t = klass->enum_basetype->type;
2749 klass = mono_class_from_mono_type (klass->enum_basetype);
2751 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2752 t == MONO_TYPE_CLASS) {
2753 klass = mono_defaults.object_class;
2754 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2755 klass = mono_defaults.int_class;
2757 klass = mono_class_from_mono_type (type);
2760 klass = mono_defaults.int_class;
2763 EnterCriticalSection (&marshal_mutex);
2765 ldfld_hash = g_hash_table_new (NULL, NULL);
2766 res = g_hash_table_lookup (ldfld_hash, klass);
2767 LeaveCriticalSection (&marshal_mutex);
2771 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
2772 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
2775 mb->method->save_lmf = 1;
2777 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2778 sig->params [0] = &mono_defaults.object_class->byval_arg;
2779 sig->params [1] = &mono_defaults.int_class->byval_arg;
2780 sig->params [2] = &mono_defaults.int_class->byval_arg;
2781 sig->params [3] = &mono_defaults.int_class->byval_arg;
2782 sig->ret = &klass->byval_arg;
2784 mono_mb_emit_ldarg (mb, 0);
2785 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2787 mono_mb_emit_ldarg (mb, 0);
2788 mono_mb_emit_ldarg (mb, 1);
2789 mono_mb_emit_ldarg (mb, 2);
2791 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
2792 csig->params [0] = &mono_defaults.object_class->byval_arg;
2793 csig->params [1] = &mono_defaults.int_class->byval_arg;
2794 csig->params [2] = &mono_defaults.int_class->byval_arg;
2795 csig->ret = &klass->this_arg;
2798 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
2799 emit_thread_interrupt_checkpoint (mb);
2801 if (klass->valuetype) {
2802 mono_mb_emit_byte (mb, CEE_UNBOX);
2803 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2804 mono_mb_emit_byte (mb, CEE_BR);
2806 mono_mb_emit_i4 (mb, 0);
2808 mono_mb_emit_byte (mb, CEE_RET);
2812 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2814 mono_mb_emit_ldarg (mb, 0);
2815 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2816 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2817 mono_mb_emit_ldarg (mb, 3);
2818 mono_mb_emit_byte (mb, CEE_ADD);
2820 if (klass->valuetype)
2821 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2826 case MONO_TYPE_BOOLEAN:
2827 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2829 case MONO_TYPE_CHAR:
2832 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2836 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2840 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2843 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2846 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2848 case MONO_TYPE_ARRAY:
2850 case MONO_TYPE_FNPTR:
2851 case MONO_TYPE_SZARRAY:
2852 case MONO_TYPE_OBJECT:
2853 case MONO_TYPE_CLASS:
2854 case MONO_TYPE_STRING:
2857 mono_mb_emit_byte (mb, CEE_LDIND_I);
2859 case MONO_TYPE_VALUETYPE:
2860 g_assert (!klass->enumtype);
2861 mono_mb_emit_byte (mb, CEE_LDOBJ);
2862 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2865 g_warning ("type %x not implemented", type->type);
2866 g_assert_not_reached ();
2869 mono_mb_emit_byte (mb, CEE_RET);
2871 res = mono_mb_create_and_cache (ldfld_hash, klass,
2872 mb, sig, sig->param_count + 16);
2879 * mono_marshal_get_stfld_wrapper:
2880 * @type: the type of the field
2882 * This method generates a function which can be use to store a field with type
2883 * @type. The generated function has the following signature:
2884 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
2887 mono_marshal_get_stfld_wrapper (MonoType *type)
2889 MonoMethodSignature *sig, *csig;
2890 MonoMethodBuilder *mb;
2893 static GHashTable *stfld_hash = NULL;
2900 if (type->type == MONO_TYPE_SZARRAY) {
2901 klass = mono_defaults.array_class;
2902 } else if (type->type == MONO_TYPE_VALUETYPE) {
2903 klass = type->data.klass;
2904 if (klass->enumtype) {
2905 t = klass->enum_basetype->type;
2906 klass = mono_class_from_mono_type (klass->enum_basetype);
2908 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2909 t == MONO_TYPE_CLASS) {
2910 klass = mono_defaults.object_class;
2911 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2912 klass = mono_defaults.int_class;
2914 klass = mono_class_from_mono_type (type);
2917 klass = mono_defaults.int_class;
2920 EnterCriticalSection (&marshal_mutex);
2922 stfld_hash = g_hash_table_new (NULL, NULL);
2923 res = g_hash_table_lookup (stfld_hash, klass);
2924 LeaveCriticalSection (&marshal_mutex);
2928 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
2929 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
2932 mb->method->save_lmf = 1;
2934 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
2935 sig->params [0] = &mono_defaults.object_class->byval_arg;
2936 sig->params [1] = &mono_defaults.int_class->byval_arg;
2937 sig->params [2] = &mono_defaults.int_class->byval_arg;
2938 sig->params [3] = &mono_defaults.int_class->byval_arg;
2939 sig->params [4] = &klass->byval_arg;
2940 sig->ret = &mono_defaults.void_class->byval_arg;
2942 mono_mb_emit_ldarg (mb, 0);
2943 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2945 mono_mb_emit_ldarg (mb, 0);
2946 mono_mb_emit_ldarg (mb, 1);
2947 mono_mb_emit_ldarg (mb, 2);
2948 mono_mb_emit_ldarg (mb, 4);
2950 if (klass->valuetype) {
2951 mono_mb_emit_byte (mb, CEE_BOX);
2952 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2955 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2956 csig->params [0] = &mono_defaults.object_class->byval_arg;
2957 csig->params [1] = &mono_defaults.int_class->byval_arg;
2958 csig->params [2] = &mono_defaults.int_class->byval_arg;
2959 csig->params [3] = &klass->this_arg;
2960 csig->ret = &mono_defaults.void_class->byval_arg;
2963 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
2964 emit_thread_interrupt_checkpoint (mb);
2966 mono_mb_emit_byte (mb, CEE_RET);
2968 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2970 mono_mb_emit_ldarg (mb, 0);
2971 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2972 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2973 mono_mb_emit_ldarg (mb, 3);
2974 mono_mb_emit_byte (mb, CEE_ADD);
2975 mono_mb_emit_ldarg (mb, 4);
2980 case MONO_TYPE_BOOLEAN:
2981 mono_mb_emit_byte (mb, CEE_STIND_I1);
2983 case MONO_TYPE_CHAR:
2986 mono_mb_emit_byte (mb, CEE_STIND_I2);
2990 mono_mb_emit_byte (mb, CEE_STIND_I4);
2994 mono_mb_emit_byte (mb, CEE_STIND_I8);
2997 mono_mb_emit_byte (mb, CEE_STIND_R4);
3000 mono_mb_emit_byte (mb, CEE_STIND_R8);
3002 case MONO_TYPE_ARRAY:
3004 case MONO_TYPE_FNPTR:
3005 case MONO_TYPE_SZARRAY:
3006 case MONO_TYPE_OBJECT:
3007 case MONO_TYPE_CLASS:
3008 case MONO_TYPE_STRING:
3011 mono_mb_emit_byte (mb, CEE_STIND_I);
3013 case MONO_TYPE_VALUETYPE:
3014 g_assert (!klass->enumtype);
3015 mono_mb_emit_byte (mb, CEE_STOBJ);
3016 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3019 g_warning ("type %x not implemented", type->type);
3020 g_assert_not_reached ();
3023 mono_mb_emit_byte (mb, CEE_RET);
3025 res = mono_mb_create_and_cache (stfld_hash, klass,
3026 mb, sig, sig->param_count + 16);
3033 * generates IL code for the icall wrapper (the generated method
3034 * calls the unmanaged code in func)
3037 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3039 MonoMethodSignature *csig;
3040 MonoMethodBuilder *mb;
3044 g_assert (sig->pinvoke);
3046 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3048 mb->method->save_lmf = 1;
3050 /* we copy the signature, so that we can modify it */
3053 mono_mb_emit_byte (mb, CEE_LDARG_0);
3055 for (i = 0; i < sig->param_count; i++)
3056 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3058 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3059 emit_thread_interrupt_checkpoint (mb);
3060 mono_mb_emit_byte (mb, CEE_RET);
3062 csig = mono_metadata_signature_dup (sig);
3065 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3072 * mono_marshal_get_native_wrapper:
3073 * @method: The MonoMethod to wrap.
3075 * generates IL code for the pinvoke wrapper (the generated method
3076 * calls the unmanaged code in method->addr)
3079 mono_marshal_get_native_wrapper (MonoMethod *method)
3081 MonoMethodSignature *sig, *csig;
3082 MonoMethodPInvoke *piinfo;
3083 MonoMethodBuilder *mb;
3084 MonoMarshalSpec **mspecs;
3088 gboolean pinvoke = FALSE;
3089 int i, pos, argnum, *tmp_locals;
3091 const char *exc_class = "MissingMethodException";
3092 const char *exc_arg = NULL;
3094 g_assert (method != NULL);
3095 g_assert (method->signature->pinvoke);
3097 cache = method->klass->image->native_wrapper_cache;
3098 if ((res = mono_marshal_find_in_cache (cache, method)))
3101 sig = method->signature;
3103 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3104 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3107 if (!method->addr) {
3109 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
3111 method->addr = mono_lookup_internal_call (method);
3114 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3116 mb->method->save_lmf = 1;
3118 piinfo = (MonoMethodPInvoke *)method;
3120 if (!method->addr) {
3121 mono_mb_emit_exception (mb, exc_class, exc_arg);
3122 csig = mono_metadata_signature_dup (sig);
3124 res = mono_mb_create_and_cache (cache, method,
3125 mb, csig, csig->param_count + 16);
3130 /* internal calls: we simply push all arguments and call the method (no conversions) */
3131 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3133 /* hack - string constructors returns a value */
3134 if (method->string_ctor) {
3135 csig = mono_metadata_signature_dup (sig);
3136 csig->ret = &mono_defaults.string_class->byval_arg;
3141 mono_mb_emit_byte (mb, CEE_LDARG_0);
3143 for (i = 0; i < sig->param_count; i++)
3144 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3146 g_assert (method->addr);
3147 mono_mb_emit_native_call (mb, csig, method->addr);
3148 emit_thread_interrupt_checkpoint (mb);
3149 mono_mb_emit_byte (mb, CEE_RET);
3151 csig = mono_metadata_signature_dup (csig);
3153 res = mono_mb_create_and_cache (cache, method,
3154 mb, csig, csig->param_count + 16);
3161 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
3162 mono_method_get_marshal_info (method, mspecs);
3164 /* pinvoke: we need to convert the arguments if necessary */
3166 /* we copy the signature, so that we can set pinvoke to 0 */
3167 csig = mono_metadata_signature_dup (sig);
3170 /* we allocate local for use with emit_struct_conv() */
3171 /* allocate local 0 (pointer) src_ptr */
3172 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3173 /* allocate local 1 (pointer) dst_ptr */
3174 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3175 /* allocate local 2 (boolean) delete_old */
3176 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3178 /* delete_old = FALSE */
3179 mono_mb_emit_icon (mb, 0);
3180 mono_mb_emit_byte (mb, CEE_STLOC_2);
3182 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3183 /* allocate local 3 to store the return value */
3184 mono_mb_add_local (mb, sig->ret);
3187 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3188 /* Return type custom marshaling */
3190 * Since we can't determine the return type of the unmanaged function,
3191 * we assume it returns a pointer, and pass that pointer to
3192 * MarshalNativeToManaged.
3194 csig->ret = &mono_defaults.int_class->byval_arg;
3197 /* we first do all conversions */
3198 tmp_locals = alloca (sizeof (int) * sig->param_count);
3200 for (i = 0; i < sig->param_count; i ++) {
3201 MonoType *t = sig->params [i];
3202 MonoMarshalSpec *spec = mspecs [i + 1];
3204 argnum = i + sig->hasthis;
3207 /* Ensure that we have marshalling info for this param */
3208 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3210 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3213 MonoMethod *marshal_managed_to_native;
3214 MonoMethod *get_instance;
3216 /* FIXME: Call CleanUpNativeData after the call */
3218 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3219 g_assert (mtype != NULL);
3220 mklass = mono_class_from_mono_type (mtype);
3221 g_assert (mklass != NULL);
3223 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3224 g_assert (marshal_managed_to_native);
3225 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3226 g_assert (get_instance);
3229 case MONO_TYPE_CLASS:
3230 case MONO_TYPE_OBJECT:
3231 case MONO_TYPE_STRING:
3232 case MONO_TYPE_ARRAY:
3233 case MONO_TYPE_SZARRAY:
3234 case MONO_TYPE_VALUETYPE:
3238 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3240 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3242 mono_mb_emit_byte (mb, CEE_CALL);
3243 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3245 mono_mb_emit_ldarg (mb, argnum);
3247 if (t->type == MONO_TYPE_VALUETYPE) {
3249 * Since we can't determine the type of the argument, we
3250 * will assume the unmanaged function takes a pointer.
3252 csig->params [i] = &mono_defaults.int_class->byval_arg;
3254 mono_mb_emit_byte (mb, CEE_BOX);
3255 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3258 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3259 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3261 mono_mb_emit_stloc (mb, tmp_locals [i]);
3265 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3266 g_assert_not_reached ();
3272 if (spec && spec->native == MONO_NATIVE_ASANY) {
3273 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3275 g_assert (t->type == MONO_TYPE_OBJECT);
3276 g_assert (!t->byref);
3278 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3279 mono_mb_emit_ldarg (mb, argnum);
3280 mono_mb_emit_icon (mb, encoding);
3281 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3282 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
3283 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ASANY);
3284 mono_mb_emit_stloc (mb, tmp_locals [i]);
3289 case MONO_TYPE_VALUETYPE:
3290 klass = t->data.klass;
3292 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3293 klass->blittable || klass->enumtype)
3296 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3298 /* store the address of the source into local variable 0 */
3300 mono_mb_emit_ldarg (mb, argnum);
3302 mono_mb_emit_ldarg_addr (mb, argnum);
3304 mono_mb_emit_byte (mb, CEE_STLOC_0);
3306 /* allocate space for the native struct and
3307 * store the address into local variable 1 (dest) */
3308 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3309 mono_mb_emit_byte (mb, CEE_PREFIX1);
3310 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3311 mono_mb_emit_stloc (mb, tmp_locals [i]);
3314 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3315 mono_mb_emit_byte (mb, CEE_BRFALSE);
3317 mono_mb_emit_i4 (mb, 0);
3321 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3322 mono_mb_emit_byte (mb, CEE_STLOC_1);
3324 /* emit valuetype conversion code */
3325 emit_struct_conv (mb, klass, FALSE);
3328 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3330 case MONO_TYPE_STRING: {
3331 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3333 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3334 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3337 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3340 mono_mb_emit_ldarg (mb, argnum);
3341 mono_mb_emit_byte (mb, CEE_LDIND_I);
3343 mono_mb_emit_ldarg (mb, argnum);
3346 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3347 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3350 case MONO_NATIVE_LPWSTR:
3351 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPWSTR);
3353 case MONO_NATIVE_LPSTR:
3354 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
3356 case MONO_NATIVE_LPTSTR:
3357 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPTSTR);
3360 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3361 MonoException *exc = mono_get_exception_not_implemented (msg);
3364 mono_raise_exception (exc);
3368 mono_mb_emit_stloc (mb, tmp_locals [i]);
3371 case MONO_TYPE_CLASS:
3372 case MONO_TYPE_OBJECT:
3373 klass = t->data.klass;
3375 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3376 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3378 if (klass->delegate) {
3379 g_assert (!t->byref);
3380 mono_mb_emit_ldarg (mb, argnum);
3381 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3382 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3383 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
3384 mono_mb_emit_stloc (mb, tmp_locals [i]);
3385 } else if (klass == mono_defaults.stringbuilder_class) {
3386 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3388 g_assert (!t->byref);
3389 mono_mb_emit_ldarg (mb, argnum);
3390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3391 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3394 case MONO_NATIVE_LPWSTR:
3395 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPWSTR);
3397 case MONO_NATIVE_LPSTR:
3398 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPSTR);
3400 case MONO_NATIVE_LPTSTR:
3401 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPTSTR);
3404 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3405 MonoException *exc = mono_get_exception_not_implemented (msg);
3408 mono_raise_exception (exc);
3412 mono_mb_emit_stloc (mb, tmp_locals [i]);
3414 mono_mb_emit_byte (mb, CEE_LDNULL);
3415 mono_mb_emit_stloc (mb, tmp_locals [i]);
3418 /* we dont need any conversions for out parameters */
3419 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3422 mono_mb_emit_ldarg (mb, argnum);
3423 mono_mb_emit_byte (mb, CEE_LDIND_I);
3426 mono_mb_emit_ldarg (mb, argnum);
3427 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3428 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3431 /* store the address of the source into local variable 0 */
3432 mono_mb_emit_byte (mb, CEE_STLOC_0);
3433 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3434 mono_mb_emit_byte (mb, CEE_BRFALSE);
3436 mono_mb_emit_i4 (mb, 0);
3438 /* allocate space for the native struct and store the address */
3439 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3440 mono_mb_emit_byte (mb, CEE_PREFIX1);
3441 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3442 mono_mb_emit_stloc (mb, tmp_locals [i]);
3444 /* set the src_ptr */
3445 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3446 mono_mb_emit_icon (mb, sizeof (MonoObject));
3447 mono_mb_emit_byte (mb, CEE_ADD);
3448 mono_mb_emit_byte (mb, CEE_STLOC_0);
3451 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3452 mono_mb_emit_byte (mb, CEE_STLOC_1);
3454 /* emit valuetype conversion code */
3455 emit_struct_conv (mb, klass, FALSE);
3457 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3461 case MONO_TYPE_ARRAY:
3462 case MONO_TYPE_SZARRAY:
3466 klass = mono_class_from_mono_type (t);
3468 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3469 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3471 if (klass->element_class == mono_defaults.string_class) {
3472 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3474 mono_mb_emit_ldarg (mb, argnum);
3475 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3476 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3479 case MONO_NATIVE_LPWSTR:
3480 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRWLPARRAY);
3482 case MONO_NATIVE_LPSTR:
3483 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY);
3486 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3487 MonoException *exc = mono_get_exception_not_implemented (msg);
3490 mono_raise_exception (exc);
3493 mono_mb_emit_stloc (mb, tmp_locals [i]);
3495 else if (klass->element_class->blittable) {
3496 mono_mb_emit_ldarg (mb, argnum);
3497 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3498 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3500 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ARRAY_LPARRAY);
3501 mono_mb_emit_stloc (mb, tmp_locals [i]);
3505 guint32 label1, label2, label3;
3506 int index_var, dest_ptr;
3508 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3511 mono_mb_emit_ldarg (mb, argnum);
3512 mono_mb_emit_stloc (mb, tmp_locals [i]);
3513 mono_mb_emit_ldarg (mb, argnum);
3514 mono_mb_emit_byte (mb, CEE_BRFALSE);
3516 mono_mb_emit_i4 (mb, 0);
3518 /* allocate space for the native struct and store the address */
3519 eklass = klass->element_class;
3520 mono_mb_emit_icon (mb, mono_class_native_size (eklass, NULL));
3521 mono_mb_emit_ldarg (mb, argnum);
3522 mono_mb_emit_byte (mb, CEE_LDLEN);
3523 mono_mb_emit_byte (mb, CEE_MUL);
3524 mono_mb_emit_byte (mb, CEE_PREFIX1);
3525 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3526 mono_mb_emit_stloc (mb, tmp_locals [i]);
3528 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3529 mono_mb_emit_stloc (mb, dest_ptr);
3531 /* Emit marshalling loop */
3532 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3533 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3534 mono_mb_emit_stloc (mb, index_var);
3536 mono_mb_emit_ldloc (mb, index_var);
3537 mono_mb_emit_ldarg (mb, argnum);
3538 mono_mb_emit_byte (mb, CEE_LDLEN);
3539 mono_mb_emit_byte (mb, CEE_BGE);
3541 mono_mb_emit_i4 (mb, 0);
3543 /* Emit marshalling code */
3545 /* set the src_ptr */
3546 mono_mb_emit_ldarg (mb, argnum);
3547 mono_mb_emit_ldloc (mb, index_var);
3548 mono_mb_emit_byte (mb, CEE_LDELEMA);
3549 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3550 mono_mb_emit_byte (mb, CEE_STLOC_0);
3553 mono_mb_emit_ldloc (mb, dest_ptr);
3554 mono_mb_emit_byte (mb, CEE_STLOC_1);
3556 /* emit valuetype conversion code */
3557 emit_struct_conv (mb, eklass, FALSE);
3559 mono_mb_emit_add_to_local (mb, index_var, 1);
3560 mono_mb_emit_add_to_local (mb, dest_ptr, mono_class_native_size (eklass, NULL));
3562 mono_mb_emit_byte (mb, CEE_BR);
3563 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3565 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3566 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3570 case MONO_TYPE_BOOLEAN: {
3571 MonoType *local_type;
3572 int variant_bool = 0;
3576 local_type = &mono_defaults.int32_class->byval_arg;
3578 switch (spec->native) {
3579 case MONO_NATIVE_I1:
3580 local_type = &mono_defaults.byte_class->byval_arg;
3582 case MONO_NATIVE_VARIANTBOOL:
3583 local_type = &mono_defaults.int16_class->byval_arg;
3587 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3591 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3592 tmp_locals [i] = mono_mb_add_local (mb, local_type);
3593 mono_mb_emit_ldarg (mb, argnum);
3594 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3596 mono_mb_emit_byte (mb, CEE_NEG);
3597 mono_mb_emit_stloc (mb, tmp_locals [i]);
3603 /* push all arguments */
3606 mono_mb_emit_byte (mb, CEE_LDARG_0);
3608 for (i = 0; i < sig->param_count; i++) {
3609 MonoType *t = sig->params [i];
3610 MonoMarshalSpec *spec = mspecs [i + 1];
3612 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3613 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3616 if (spec && spec->native == MONO_NATIVE_ASANY) {
3617 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3620 argnum = i + sig->hasthis;
3623 case MONO_TYPE_BOOLEAN:
3625 g_assert (tmp_locals [i]);
3626 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3628 mono_mb_emit_ldarg (mb, argnum);
3643 mono_mb_emit_ldarg (mb, argnum);
3645 case MONO_TYPE_VALUETYPE:
3646 klass = sig->params [i]->data.klass;
3647 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3648 klass->blittable || klass->enumtype) {
3649 mono_mb_emit_ldarg (mb, argnum);
3652 g_assert (tmp_locals [i]);
3653 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3655 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3656 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3657 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3660 case MONO_TYPE_STRING:
3661 case MONO_TYPE_CLASS:
3662 case MONO_TYPE_OBJECT:
3663 g_assert (tmp_locals [i]);
3665 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3667 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3669 case MONO_TYPE_CHAR:
3670 /* fixme: dont know how to marshal that. We cant simply
3671 * convert it to a one byte UTF8 character, because an
3672 * unicode character may need more that one byte in UTF8 */
3673 mono_mb_emit_ldarg (mb, argnum);
3675 case MONO_TYPE_ARRAY:
3676 case MONO_TYPE_SZARRAY:
3678 mono_mb_emit_ldarg (mb, argnum);
3680 g_assert (tmp_locals [i]);
3681 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3684 case MONO_TYPE_TYPEDBYREF:
3685 case MONO_TYPE_FNPTR:
3687 g_warning ("type 0x%02x unknown", t->type);
3688 g_assert_not_reached ();
3693 /* call the native method */
3694 mono_mb_emit_native_call (mb, csig, method->addr);
3696 /* Set LastError if needed */
3697 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
3698 MonoMethodSignature *lasterr_sig;
3700 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3701 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
3702 lasterr_sig->pinvoke = 1;
3704 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
3707 /* Ensure that we have marshalling info for the return */
3708 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3710 /* convert the result */
3711 if (!sig->ret->byref) {
3712 MonoMarshalSpec *spec = mspecs [0];
3713 type = sig->ret->type;
3715 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3718 MonoMethod *marshal_native_to_managed;
3719 MonoMethod *get_instance;
3721 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3722 g_assert (mtype != NULL);
3723 mklass = mono_class_from_mono_type (mtype);
3724 g_assert (mklass != NULL);
3726 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3727 g_assert (marshal_native_to_managed);
3728 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3729 g_assert (get_instance);
3732 case MONO_TYPE_CLASS:
3733 case MONO_TYPE_OBJECT:
3734 case MONO_TYPE_STRING:
3735 case MONO_TYPE_ARRAY:
3736 case MONO_TYPE_SZARRAY:
3737 case MONO_TYPE_VALUETYPE:
3738 if (type == MONO_TYPE_VALUETYPE) {
3739 /* local 3 can't hold a pointer */
3740 mono_mb_emit_byte (mb, CEE_STLOC_0);
3743 mono_mb_emit_byte (mb, CEE_STLOC_3);
3745 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3747 mono_mb_emit_byte (mb, CEE_CALL);
3748 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3750 if (type == MONO_TYPE_VALUETYPE)
3751 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3753 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3755 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3756 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3758 if (type == MONO_TYPE_VALUETYPE) {
3759 mono_mb_emit_byte (mb, CEE_UNBOX);
3760 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3762 mono_mb_emit_byte (mb, CEE_STLOC_3);
3765 g_warning ("custom marshalling of type %x is currently not supported", type);
3766 g_assert_not_reached ();
3773 case MONO_TYPE_VOID:
3788 /* no conversions necessary */
3789 mono_mb_emit_byte (mb, CEE_STLOC_3);
3791 case MONO_TYPE_BOOLEAN:
3792 /* maybe we need to make sure that it fits within 8 bits */
3793 mono_mb_emit_byte (mb, CEE_STLOC_3);
3795 case MONO_TYPE_VALUETYPE:
3796 klass = sig->ret->data.klass;
3797 if (klass->enumtype) {
3798 type = sig->ret->data.klass->enum_basetype->type;
3802 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3804 mono_mb_emit_byte (mb, CEE_STLOC_3);
3807 /* load pointer to returned value type */
3808 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3809 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3810 /* store the address of the source into local variable 0 */
3811 mono_mb_emit_byte (mb, CEE_STLOC_0);
3813 mono_mb_emit_ldloc_addr (mb, 3);
3814 mono_mb_emit_byte (mb, CEE_STLOC_1);
3816 /* emit valuetype conversion code */
3817 emit_struct_conv (mb, sig->ret->data.klass, TRUE);
3819 case MONO_TYPE_STRING:
3820 mono_mb_emit_byte (mb, CEE_STLOC_0);
3821 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3823 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3824 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3826 switch (spec->native) {
3827 case MONO_NATIVE_LPWSTR:
3828 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
3831 g_warning ("marshalling conversion not implemented");
3832 g_assert_not_reached ();
3835 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3837 mono_mb_emit_byte (mb, CEE_STLOC_3);
3839 /* free the string */
3840 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3841 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3842 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3844 case MONO_TYPE_CLASS:
3845 case MONO_TYPE_OBJECT:
3846 klass = sig->ret->data.klass;
3849 mono_mb_emit_byte (mb, CEE_STLOC_0);
3851 mono_mb_emit_byte (mb, CEE_LDNULL);
3852 mono_mb_emit_byte (mb, CEE_STLOC_3);
3855 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3856 mono_mb_emit_byte (mb, CEE_BRFALSE);
3858 mono_mb_emit_i4 (mb, 0);
3860 /* allocate result object */
3862 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3863 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3864 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3865 mono_mb_emit_byte (mb, CEE_STLOC_3);
3869 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3870 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3871 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3872 mono_mb_emit_icon (mb, sizeof (MonoObject));
3873 mono_mb_emit_byte (mb, CEE_ADD);
3874 mono_mb_emit_byte (mb, CEE_STLOC_1);
3876 /* emit conversion code */
3877 emit_struct_conv (mb, klass, TRUE);
3879 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3881 case MONO_TYPE_ARRAY:
3882 case MONO_TYPE_SZARRAY:
3883 /* fixme: we need conversions here */
3884 mono_mb_emit_byte (mb, CEE_STLOC_3);
3886 case MONO_TYPE_CHAR:
3887 /* fixme: we need conversions here */
3888 mono_mb_emit_byte (mb, CEE_STLOC_3);
3890 case MONO_TYPE_TYPEDBYREF:
3891 case MONO_TYPE_FNPTR:
3893 g_warning ("return type 0x%02x unknown", sig->ret->type);
3894 g_assert_not_reached ();
3898 mono_mb_emit_byte (mb, CEE_STLOC_3);
3902 * Need to call this after converting the result since MONO_VTADDR needs
3903 * to be adjacent to the call instruction.
3905 emit_thread_interrupt_checkpoint (mb);
3907 /* we need to convert byref arguments back and free string arrays */
3908 for (i = 0; i < sig->param_count; i++) {
3909 MonoType *t = sig->params [i];
3910 MonoMarshalSpec *spec = mspecs [i + 1];
3912 argnum = i + sig->hasthis;
3914 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3917 MonoMethod *get_instance;
3918 MonoMethod *cleanup_native;
3920 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3921 g_assert (mtype != NULL);
3922 mklass = mono_class_from_mono_type (mtype);
3923 g_assert (mklass != NULL);
3925 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3926 g_assert (get_instance);
3927 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3928 g_assert (get_instance);
3931 case MONO_TYPE_CLASS:
3932 case MONO_TYPE_OBJECT:
3933 case MONO_TYPE_STRING:
3934 case MONO_TYPE_ARRAY:
3935 case MONO_TYPE_SZARRAY:
3936 case MONO_TYPE_VALUETYPE:
3937 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3939 mono_mb_emit_byte (mb, CEE_CALL);
3940 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3942 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3944 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3945 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3950 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3951 g_assert_not_reached ();
3957 if (spec && spec->native == MONO_NATIVE_ASANY) {
3958 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3960 mono_mb_emit_ldarg (mb, argnum);
3961 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3962 mono_mb_emit_icon (mb, encoding);
3963 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3964 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
3965 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ASANY);
3970 case MONO_TYPE_STRING:
3971 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3972 mono_mb_emit_ldarg (mb, argnum);
3973 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3974 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3975 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3976 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3977 mono_mb_emit_byte (mb, CEE_STIND_I);
3979 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3980 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3981 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3984 case MONO_TYPE_CLASS:
3985 case MONO_TYPE_OBJECT:
3986 if (t->data.klass == mono_defaults.stringbuilder_class) {
3987 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3988 gboolean need_free = TRUE;
3990 g_assert (!t->byref);
3991 mono_mb_emit_ldarg (mb, argnum);
3992 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3993 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3994 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
3997 case MONO_NATIVE_LPWSTR:
3998 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_SB);
4000 * mono_string_builder_to_utf16 does not allocate a
4001 * new buffer, so no need to free it.
4005 case MONO_NATIVE_LPSTR:
4006 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_SB);
4008 case MONO_NATIVE_LPTSTR:
4009 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPTSTR_SB);
4012 g_assert_not_reached ();
4016 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4017 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4018 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4023 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4026 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4027 /* allocate a new object new object */
4028 mono_mb_emit_ldarg (mb, argnum);
4029 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4030 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4031 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4032 mono_mb_emit_byte (mb, CEE_STIND_I);
4035 /* dst = *argument */
4036 mono_mb_emit_ldarg (mb, argnum);
4039 mono_mb_emit_byte (mb, CEE_LDIND_I);
4041 mono_mb_emit_byte (mb, CEE_STLOC_1);
4043 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4044 mono_mb_emit_byte (mb, CEE_BRFALSE);
4046 mono_mb_emit_i4 (mb, 0);
4048 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4049 mono_mb_emit_icon (mb, sizeof (MonoObject));
4050 mono_mb_emit_byte (mb, CEE_ADD);
4051 mono_mb_emit_byte (mb, CEE_STLOC_1);
4053 /* src = tmp_locals [i] */
4054 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4055 mono_mb_emit_byte (mb, CEE_STLOC_0);
4057 /* emit valuetype conversion code */
4058 emit_struct_conv (mb, klass, TRUE);
4060 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4062 case MONO_TYPE_VALUETYPE:
4066 klass = t->data.klass;
4067 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4068 klass->blittable || klass->enumtype)
4071 /* dst = argument */
4072 mono_mb_emit_ldarg (mb, argnum);
4073 mono_mb_emit_byte (mb, CEE_STLOC_1);
4075 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4076 mono_mb_emit_byte (mb, CEE_BRFALSE);
4078 mono_mb_emit_i4 (mb, 0);
4080 /* src = tmp_locals [i] */
4081 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4082 mono_mb_emit_byte (mb, CEE_STLOC_0);
4084 /* emit valuetype conversion code */
4085 emit_struct_conv (mb, klass, TRUE);
4087 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4089 case MONO_TYPE_SZARRAY:
4093 klass = mono_class_from_mono_type (t);
4095 if (klass->element_class == mono_defaults.string_class) {
4096 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4097 g_assert (tmp_locals [i]);
4099 mono_mb_emit_ldarg (mb, argnum);
4100 mono_mb_emit_byte (mb, CEE_BRFALSE);
4102 mono_mb_emit_i4 (mb, 0);
4104 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4107 case MONO_NATIVE_LPWSTR:
4109 * The array elements point to the managed string data so
4110 * they don't need to be freed.
4112 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4113 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4116 mono_mb_emit_ldarg (mb, argnum);
4117 mono_mb_emit_byte (mb, CEE_LDLEN);
4118 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4119 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4120 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ARRAY);
4124 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4127 /* Character arrays are implicitly marshalled as [Out] */
4128 if ((klass->element_class == mono_defaults.char_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4129 /* FIXME: Optimize blittable case */
4131 guint32 label1, label2, label3;
4132 int index_var, src_ptr;
4134 eklass = klass->element_class;
4135 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4138 mono_mb_emit_ldarg (mb, argnum);
4139 mono_mb_emit_byte (mb, CEE_BRFALSE);
4141 mono_mb_emit_i4 (mb, 0);
4143 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4144 mono_mb_emit_stloc (mb, src_ptr);
4146 /* Emit marshalling loop */
4147 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4148 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4149 mono_mb_emit_stloc (mb, index_var);
4151 mono_mb_emit_ldloc (mb, index_var);
4152 mono_mb_emit_ldarg (mb, argnum);
4153 mono_mb_emit_byte (mb, CEE_LDLEN);
4154 mono_mb_emit_byte (mb, CEE_BGE);
4156 mono_mb_emit_i4 (mb, 0);
4158 /* Emit marshalling code */
4160 /* set the src_ptr */
4161 mono_mb_emit_ldloc (mb, src_ptr);
4162 mono_mb_emit_byte (mb, CEE_STLOC_0);
4165 mono_mb_emit_ldarg (mb, argnum);
4166 mono_mb_emit_ldloc (mb, index_var);
4167 mono_mb_emit_byte (mb, CEE_LDELEMA);
4168 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4169 mono_mb_emit_byte (mb, CEE_STLOC_1);
4171 /* emit valuetype conversion code */
4172 emit_struct_conv (mb, eklass, TRUE);
4174 mono_mb_emit_add_to_local (mb, index_var, 1);
4175 mono_mb_emit_add_to_local (mb, src_ptr, mono_class_native_size (eklass, NULL));
4177 mono_mb_emit_byte (mb, CEE_BR);
4178 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4180 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4181 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4184 case MONO_TYPE_BOOLEAN:
4187 mono_mb_emit_ldarg (mb, argnum);
4188 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4189 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4190 mono_mb_emit_byte (mb, CEE_NEG);
4191 mono_mb_emit_byte (mb, CEE_STIND_I1);
4195 if (!MONO_TYPE_IS_VOID(sig->ret))
4196 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4198 mono_mb_emit_byte (mb, CEE_RET);
4200 csig = mono_metadata_signature_dup (sig);
4202 res = mono_mb_create_and_cache (cache, method,
4203 mb, csig, csig->param_count + 16);
4206 for (i = sig->param_count; i >= 0; i--)
4207 g_free (mspecs [i]);
4210 //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));
4216 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4218 static MonoReflectionType *
4219 type_from_handle (MonoType *handle)
4221 MonoDomain *domain = mono_domain_get ();
4222 MonoClass *klass = mono_class_from_mono_type (handle);
4224 MONO_ARCH_SAVE_REGS;
4226 mono_class_init (klass);
4227 return mono_type_get_object (domain, handle);
4231 * mono_marshal_get_isinst:
4232 * @klass: the type of the field
4234 * This method generates a function which can be used to check if an object is
4235 * an instance of the given type, icluding the case where the object is a proxy.
4236 * The generated function has the following signature:
4237 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4240 mono_marshal_get_isinst (MonoClass *klass)
4242 static MonoMethodSignature *isint_sig = NULL;
4243 static GHashTable *isinst_hash = NULL;
4245 int pos_was_ok, pos_failed, pos_end, pos_end2;
4247 MonoMethodBuilder *mb;
4249 EnterCriticalSection (&marshal_mutex);
4251 isinst_hash = g_hash_table_new (NULL, NULL);
4253 res = g_hash_table_lookup (isinst_hash, klass);
4254 LeaveCriticalSection (&marshal_mutex);
4259 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4260 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4261 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4262 isint_sig->pinvoke = 0;
4265 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4266 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4269 mb->method->save_lmf = 1;
4271 /* check if the object is a proxy that needs special cast */
4272 mono_mb_emit_ldarg (mb, 0);
4273 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4274 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4275 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4277 /* The result of MONO_ISINST can be:
4278 0) the type check succeeded
4279 1) the type check did not succeed
4280 2) a CanCastTo call is needed */
4282 mono_mb_emit_byte (mb, CEE_DUP);
4283 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4285 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4286 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4288 /* get the real proxy from the transparent proxy*/
4290 mono_mb_emit_ldarg (mb, 0);
4291 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4292 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4296 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4297 mono_mb_emit_byte (mb, CEE_LDNULL);
4298 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4302 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4303 mono_mb_emit_byte (mb, CEE_POP);
4304 mono_mb_emit_ldarg (mb, 0);
4308 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4309 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4310 mono_mb_emit_byte (mb, CEE_RET);
4312 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4319 * mono_marshal_get_castclass:
4320 * @klass: the type of the field
4322 * This method generates a function which can be used to cast an object to
4323 * an instance of the given type, icluding the case where the object is a proxy.
4324 * The generated function has the following signature:
4325 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4328 mono_marshal_get_castclass (MonoClass *klass)
4330 static MonoMethodSignature *castclass_sig = NULL;
4331 static GHashTable *castclass_hash = NULL;
4333 int pos_was_ok, pos_was_ok2;
4335 MonoMethodBuilder *mb;
4337 EnterCriticalSection (&marshal_mutex);
4338 if (!castclass_hash)
4339 castclass_hash = g_hash_table_new (NULL, NULL);
4341 res = g_hash_table_lookup (castclass_hash, klass);
4342 LeaveCriticalSection (&marshal_mutex);
4346 if (!castclass_sig) {
4347 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4348 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4349 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4350 castclass_sig->pinvoke = 0;
4353 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4354 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4357 mb->method->save_lmf = 1;
4359 /* check if the object is a proxy that needs special cast */
4360 mono_mb_emit_ldarg (mb, 0);
4361 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4362 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4363 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4365 /* The result of MONO_ISINST can be:
4366 0) the cast is valid
4367 1) cast of unknown proxy type
4368 or an exception if the cast is is invalid
4371 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4373 /* get the real proxy from the transparent proxy*/
4375 mono_mb_emit_ldarg (mb, 0);
4376 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4377 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4380 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4383 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4384 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4385 mono_mb_emit_ldarg (mb, 0);
4388 mono_mb_emit_byte (mb, CEE_RET);
4390 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4397 mono_marshal_get_proxy_cancast (MonoClass *klass)
4399 static MonoMethodSignature *from_handle_sig = NULL;
4400 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4401 static MonoMethodSignature *isint_sig = NULL;
4402 static GHashTable *proxy_isinst_hash = NULL;
4404 int pos_failed, pos_end;
4406 MonoMethod *can_cast_to;
4407 MonoMethodDesc *desc;
4408 MonoMethodBuilder *mb;
4410 EnterCriticalSection (&marshal_mutex);
4411 if (!proxy_isinst_hash)
4412 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4414 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4415 LeaveCriticalSection (&marshal_mutex);
4420 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4421 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4422 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4423 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4424 upgrade_proxy_sig->pinvoke = 1;
4426 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4427 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4428 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4430 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4431 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4432 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4433 isint_sig->pinvoke = 0;
4436 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4437 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4440 mb->method->save_lmf = 1;
4442 /* get the real proxy from the transparent proxy*/
4443 mono_mb_emit_ldarg (mb, 0);
4444 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4445 mono_mb_emit_byte (mb, CEE_LDIND_I);
4447 /* get the refletion type from the type handle */
4448 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4449 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4450 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4451 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4453 mono_mb_emit_ldarg (mb, 0);
4455 /* make the call to CanCastTo (type, ob) */
4456 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4457 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4458 g_assert (can_cast_to);
4459 mono_method_desc_free (desc);
4460 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4461 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4464 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4466 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4467 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4468 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4469 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4470 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4471 mono_mb_emit_ldarg (mb, 0);
4473 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4474 emit_thread_interrupt_checkpoint (mb);
4476 mono_mb_emit_ldarg (mb, 0);
4477 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4481 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4482 mono_mb_emit_byte (mb, CEE_LDNULL);
4486 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4487 mono_mb_emit_byte (mb, CEE_RET);
4489 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4496 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4499 klass = mono_class_from_mono_type (rtype->type);
4500 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4501 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4505 * mono_marshal_get_struct_to_ptr:
4508 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4511 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4513 MonoMethodBuilder *mb;
4514 static MonoMethod *stoptr = NULL;
4517 g_assert (klass != NULL);
4519 if (klass->str_to_ptr)
4520 return klass->str_to_ptr;
4523 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4526 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4528 if (klass->blittable) {
4529 mono_mb_emit_byte (mb, CEE_LDARG_1);
4530 mono_mb_emit_byte (mb, CEE_LDARG_0);
4531 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4532 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4533 mono_mb_emit_byte (mb, CEE_PREFIX1);
4534 mono_mb_emit_byte (mb, CEE_CPBLK);
4537 /* allocate local 0 (pointer) src_ptr */
4538 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4539 /* allocate local 1 (pointer) dst_ptr */
4540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4541 /* allocate local 2 (boolean) delete_old */
4542 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4543 mono_mb_emit_byte (mb, CEE_LDARG_2);
4544 mono_mb_emit_byte (mb, CEE_STLOC_2);
4546 /* initialize src_ptr to point to the start of object data */
4547 mono_mb_emit_byte (mb, CEE_LDARG_0);
4548 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4549 mono_mb_emit_byte (mb, CEE_STLOC_0);
4551 /* initialize dst_ptr */
4552 mono_mb_emit_byte (mb, CEE_LDARG_1);
4553 mono_mb_emit_byte (mb, CEE_STLOC_1);
4555 emit_struct_conv (mb, klass, FALSE);
4558 mono_mb_emit_byte (mb, CEE_RET);
4560 res = mono_mb_create_method (mb, stoptr->signature, 0);
4563 klass->str_to_ptr = res;
4568 * mono_marshal_get_ptr_to_struct:
4571 * generates IL code for PtrToStructure (IntPtr src, object structure)
4574 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4576 MonoMethodBuilder *mb;
4577 static MonoMethod *ptostr = NULL;
4580 g_assert (klass != NULL);
4582 if (klass->ptr_to_str)
4583 return klass->ptr_to_str;
4586 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4589 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4591 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4592 mono_mb_emit_byte (mb, CEE_LDARG_1);
4593 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4594 mono_mb_emit_byte (mb, CEE_LDARG_0);
4595 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4596 mono_mb_emit_byte (mb, CEE_PREFIX1);
4597 mono_mb_emit_byte (mb, CEE_CPBLK);
4600 /* allocate local 0 (pointer) src_ptr */
4601 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4602 /* allocate local 1 (pointer) dst_ptr */
4603 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4605 /* initialize src_ptr to point to the start of object data */
4606 mono_mb_emit_byte (mb, CEE_LDARG_0);
4607 mono_mb_emit_byte (mb, CEE_STLOC_0);
4609 /* initialize dst_ptr */
4610 mono_mb_emit_byte (mb, CEE_LDARG_1);
4611 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4612 mono_mb_emit_byte (mb, CEE_STLOC_1);
4614 emit_struct_conv (mb, klass, TRUE);
4617 mono_mb_emit_byte (mb, CEE_RET);
4619 res = mono_mb_create_method (mb, ptostr->signature, 0);
4622 klass->ptr_to_str = res;
4627 * generates IL code for the synchronized wrapper: the generated method
4628 * calls METHOD while locking 'this' or the parent type.
4631 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
4633 static MonoMethodSignature *from_handle_sig = NULL;
4634 static MonoMethod *enter_method, *exit_method;
4635 MonoMethodSignature *sig;
4636 MonoExceptionClause *clause;
4637 MonoMethodHeader *header;
4638 MonoMethodBuilder *mb;
4641 int i, pos, this_local, ret_local;
4645 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
4648 cache = method->klass->image->synchronized_cache;
4649 if ((res = mono_marshal_find_in_cache (cache, method)))
4652 sig = method->signature;
4654 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
4657 if (!MONO_TYPE_IS_VOID (sig->ret))
4658 ret_local = mono_mb_add_local (mb, sig->ret);
4661 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4663 clause = g_new0 (MonoExceptionClause, 1);
4664 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
4666 if (!enter_method) {
4667 MonoMethodDesc *desc;
4669 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
4670 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4671 g_assert (enter_method);
4672 mono_method_desc_free (desc);
4673 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
4674 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4675 g_assert (exit_method);
4676 mono_method_desc_free (desc);
4679 * GetTypeFromHandle isn't called as a managed method because it has
4680 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
4681 * transformed into something else by the JIT.
4683 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4684 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4685 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4688 /* Push this or the type object */
4689 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
4690 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4691 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4692 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
4693 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4696 mono_mb_emit_ldarg (mb, 0);
4697 mono_mb_emit_stloc (mb, this_local);
4699 /* Call Monitor::Enter() */
4700 mono_mb_emit_ldloc (mb, this_local);
4701 mono_mb_emit_managed_call (mb, enter_method, NULL);
4703 clause->try_offset = mb->pos;
4705 /* Call the method */
4707 mono_mb_emit_ldarg (mb, 0);
4708 for (i = 0; i < sig->param_count; i++)
4709 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
4710 mono_mb_emit_managed_call (mb, method, method->signature);
4711 if (!MONO_TYPE_IS_VOID (sig->ret))
4712 mono_mb_emit_stloc (mb, ret_local);
4714 mono_mb_emit_byte (mb, CEE_LEAVE);
4716 mono_mb_emit_i4 (mb, 0);
4718 clause->try_len = mb->pos - clause->try_offset;
4719 clause->handler_offset = mb->pos;
4721 /* Call Monitor::Exit() */
4722 mono_mb_emit_ldloc (mb, this_local);
4723 // mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit);
4724 mono_mb_emit_managed_call (mb, exit_method, NULL);
4725 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
4727 clause->handler_len = mb->pos - clause->handler_offset;
4729 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4730 if (!MONO_TYPE_IS_VOID (sig->ret))
4731 mono_mb_emit_ldloc (mb, ret_local);
4732 mono_mb_emit_byte (mb, CEE_RET);
4734 res = mono_mb_create_and_cache (cache, method,
4735 mb, sig, sig->param_count + 16);
4738 header = ((MonoMethodNormal *)res)->header;
4739 header->num_clauses = 1;
4740 header->clauses = clause;
4745 /* FIXME: on win32 we should probably use GlobalAlloc(). */
4747 mono_marshal_alloc (gpointer size)
4749 MONO_ARCH_SAVE_REGS;
4751 return g_try_malloc ((gulong)size);
4755 mono_marshal_free (gpointer ptr)
4757 MONO_ARCH_SAVE_REGS;
4763 mono_marshal_free_array (gpointer *ptr, int size)
4770 for (i = 0; i < size; i++)
4776 mono_marshal_realloc (gpointer ptr, gpointer size)
4778 MONO_ARCH_SAVE_REGS;
4780 return g_try_realloc (ptr, (gulong)size);
4784 mono_marshal_string_array (MonoArray *array)
4792 len = mono_array_length (array);
4794 result = g_malloc (sizeof (char *) * (len + 1));
4795 for (i = 0; i < len; ++i) {
4796 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4797 result [i] = s ? mono_string_to_utf8 (s): NULL;
4799 /* null terminate the array */
4806 mono_marshal_string_array_to_unicode (MonoArray *array)
4814 len = mono_array_length (array);
4816 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
4817 for (i = 0; i < len; ++i) {
4818 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4819 result [i] = s ? mono_string_chars (s) : NULL;
4821 /* null terminate the array */
4828 * mono_marshal_set_last_error:
4830 * This function is invoked to set the last error value from a P/Invoke call
4831 * which has SetLastError set.
4834 mono_marshal_set_last_error (void)
4837 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
4839 TlsSetValue (last_error_tls_id, (gpointer)errno);
4844 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
4845 gpointer dest, gint32 length)
4850 MONO_ARCH_SAVE_REGS;
4852 MONO_CHECK_ARG_NULL (src);
4853 MONO_CHECK_ARG_NULL (dest);
4855 g_assert (src->obj.vtable->klass->rank == 1);
4856 g_assert (start_index >= 0);
4857 g_assert (length >= 0);
4858 g_assert (start_index + length <= mono_array_length (src));
4860 element_size = mono_array_element_size (src->obj.vtable->klass);
4862 source_addr = mono_array_addr_with_size (src, element_size, start_index);
4864 memcpy (dest, source_addr, length * element_size);
4868 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
4869 MonoArray *dest, gint32 length)
4874 MONO_ARCH_SAVE_REGS;
4876 MONO_CHECK_ARG_NULL (src);
4877 MONO_CHECK_ARG_NULL (dest);
4879 g_assert (dest->obj.vtable->klass->rank == 1);
4880 g_assert (start_index >= 0);
4881 g_assert (length >= 0);
4882 g_assert (start_index + length <= mono_array_length (dest));
4884 element_size = mono_array_element_size (dest->obj.vtable->klass);
4886 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
4888 memcpy (dest_addr, src, length * element_size);
4891 #if NO_UNALIGNED_ACCESS
4892 #define RETURN_UNALIGNED(type, addr) \
4895 memcpy(&val, p + offset, sizeof(val)); \
4898 #define WRITE_UNALIGNED(type, addr, val) \
4899 memcpy(addr, &val, sizeof(type))
4901 #define RETURN_UNALIGNED(type, addr) \
4902 return *(type*)(p + offset);
4903 #define WRITE_UNALIGNED(type, addr, val) \
4904 (*(type *)(addr) = (val))
4908 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
4912 MONO_ARCH_SAVE_REGS;
4914 RETURN_UNALIGNED(gpointer, p + offset);
4918 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
4922 MONO_ARCH_SAVE_REGS;
4924 return *(unsigned char*)(p + offset);
4928 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
4932 MONO_ARCH_SAVE_REGS;
4934 RETURN_UNALIGNED(gint16, p + offset);
4938 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
4942 MONO_ARCH_SAVE_REGS;
4944 RETURN_UNALIGNED(gint32, p + offset);
4948 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
4952 MONO_ARCH_SAVE_REGS;
4954 RETURN_UNALIGNED(gint64, p + offset);
4958 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
4962 MONO_ARCH_SAVE_REGS;
4964 *(unsigned char*)(p + offset) = val;
4968 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
4972 MONO_ARCH_SAVE_REGS;
4974 WRITE_UNALIGNED(gpointer, p + offset, val);
4978 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
4982 MONO_ARCH_SAVE_REGS;
4984 WRITE_UNALIGNED(gint16, p + offset, val);
4988 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
4992 MONO_ARCH_SAVE_REGS;
4994 WRITE_UNALIGNED(gint32, p + offset, val);
4998 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5002 MONO_ARCH_SAVE_REGS;
5004 WRITE_UNALIGNED(gint64, p + offset, val);
5008 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5010 MONO_ARCH_SAVE_REGS;
5013 return mono_string_new (mono_domain_get (), "");
5015 return mono_string_new (mono_domain_get (), ptr);
5019 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5021 MONO_ARCH_SAVE_REGS;
5024 return mono_string_new (mono_domain_get (), "");
5026 return mono_string_new_len (mono_domain_get (), ptr, len);
5030 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5032 MonoDomain *domain = mono_domain_get ();
5036 MONO_ARCH_SAVE_REGS;
5039 return mono_string_new (mono_domain_get (), "");
5044 return mono_string_new_utf16 (domain, ptr, len);
5048 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5050 MonoDomain *domain = mono_domain_get ();
5052 MONO_ARCH_SAVE_REGS;
5055 return mono_string_new (mono_domain_get (), "");
5057 return mono_string_new_utf16 (domain, ptr, len);
5061 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5063 MONO_ARCH_SAVE_REGS;
5065 g_warning ("PtrToStringBSTR not implemented");
5066 g_assert_not_reached ();
5072 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5074 MONO_ARCH_SAVE_REGS;
5076 return ((guint32)TlsGetValue (last_error_tls_id));
5080 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5086 MONO_ARCH_SAVE_REGS;
5088 MONO_CHECK_ARG_NULL (rtype);
5091 klass = mono_class_from_mono_type (type);
5092 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5094 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5098 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5099 exc = mono_get_exception_argument ("t", msg);
5101 mono_raise_exception (exc);
5105 return mono_class_native_size (klass, NULL);
5109 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5114 MONO_ARCH_SAVE_REGS;
5116 MONO_CHECK_ARG_NULL (obj);
5117 MONO_CHECK_ARG_NULL (dst);
5119 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5123 pa [2] = &delete_old;
5125 mono_runtime_invoke (method, NULL, pa, NULL);
5129 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5134 MONO_ARCH_SAVE_REGS;
5136 MONO_CHECK_ARG_NULL (src);
5137 MONO_CHECK_ARG_NULL (dst);
5139 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5144 mono_runtime_invoke (method, NULL, pa, NULL);
5148 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5150 MonoDomain *domain = mono_domain_get ();
5153 MONO_ARCH_SAVE_REGS;
5155 MONO_CHECK_ARG_NULL (src);
5156 MONO_CHECK_ARG_NULL (type);
5158 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5160 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5166 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5168 MonoMarshalType *info;
5171 int i, match_index = -1;
5173 MONO_ARCH_SAVE_REGS;
5175 MONO_CHECK_ARG_NULL (type);
5176 MONO_CHECK_ARG_NULL (field_name);
5178 fname = mono_string_to_utf8 (field_name);
5179 klass = mono_class_from_mono_type (type->type);
5181 while(klass && match_index == -1) {
5182 for (i = 0; i < klass->field.count; ++i) {
5183 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5189 if(match_index == -1)
5190 klass = klass->parent;
5195 if(match_index == -1) {
5199 /* Get back original class instance */
5200 klass = mono_class_from_mono_type (type->type);
5202 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5203 exc = mono_get_exception_argument ("fieldName", tmp);
5206 mono_raise_exception ((MonoException*)exc);
5209 info = mono_marshal_load_type_info (klass);
5210 return info->fields [match_index].offset;
5214 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5216 MONO_ARCH_SAVE_REGS;
5218 return mono_string_to_utf8 (string);
5222 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5224 MONO_ARCH_SAVE_REGS;
5229 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5233 mono_struct_delete_old (MonoClass *klass, char *ptr)
5235 MonoMarshalType *info;
5238 info = mono_marshal_load_type_info (klass);
5240 for (i = 0; i < info->num_fields; i++) {
5241 MonoMarshalNative ntype;
5242 MonoMarshalConv conv;
5243 MonoType *ftype = info->fields [i].field->type;
5246 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5249 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5250 klass->unicode, &conv);
5252 cpos = ptr + info->fields [i].offset;
5255 case MONO_MARSHAL_CONV_NONE:
5256 if (MONO_TYPE_ISSTRUCT (ftype)) {
5257 mono_struct_delete_old (ftype->data.klass, cpos);
5261 case MONO_MARSHAL_CONV_STR_LPWSTR:
5262 case MONO_MARSHAL_CONV_STR_LPSTR:
5263 case MONO_MARSHAL_CONV_STR_LPTSTR:
5264 case MONO_MARSHAL_CONV_STR_BSTR:
5265 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5266 case MONO_MARSHAL_CONV_STR_TBSTR:
5267 g_free (*(gpointer *)cpos);
5276 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5280 MONO_ARCH_SAVE_REGS;
5282 MONO_CHECK_ARG_NULL (src);
5283 MONO_CHECK_ARG_NULL (type);
5285 klass = mono_class_from_mono_type (type->type);
5287 mono_struct_delete_old (klass, (char *)src);
5291 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5293 /* FIXME: Call AllocCoTaskMem under windows */
5294 MONO_ARCH_SAVE_REGS;
5296 return g_try_malloc ((gulong)size);
5300 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5302 /* FIXME: Call FreeCoTaskMem under windows */
5303 MONO_ARCH_SAVE_REGS;
5309 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5311 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5315 mono_marshal_load_type_info (MonoClass* klass)
5317 int i, j, count = 0, native_size = 0, min_align = 1;
5318 MonoMarshalType *info;
5321 g_assert (klass != NULL);
5323 if (klass->marshal_info)
5324 return klass->marshal_info;
5327 mono_class_init (klass);
5329 for (i = 0; i < klass->field.count; ++i) {
5330 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5332 if (mono_field_is_deleted (&klass->fields [i]))
5337 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5339 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5340 info->num_fields = count;
5342 /* Try to find a size for this type in metadata */
5343 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5345 if (klass->parent) {
5346 int parent_size = mono_class_native_size (klass->parent, NULL);
5348 /* Add parent size to real size */
5349 native_size += parent_size;
5350 info->native_size = parent_size;
5353 for (j = i = 0; i < klass->field.count; ++i) {
5356 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5359 if (mono_field_is_deleted (&klass->fields [i]))
5361 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5362 mono_metadata_field_info (klass->image, klass->field.first + i,
5363 NULL, NULL, &info->fields [j].mspec);
5365 info->fields [j].field = &klass->fields [i];
5367 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5368 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5369 /* This field is a hack inserted by MCS to empty structures */
5374 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5375 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
5376 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5377 &align, TRUE, klass->unicode);
5378 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5379 min_align = MAX (align, min_align);
5380 info->fields [j].offset = info->native_size;
5381 info->fields [j].offset += align - 1;
5382 info->fields [j].offset &= ~(align - 1);
5383 info->native_size = info->fields [j].offset + size;
5385 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5386 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5387 &align, TRUE, klass->unicode);
5388 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5389 min_align = MAX (align, min_align);
5390 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5391 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
5397 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5398 info->native_size = MAX (native_size, info->native_size);
5401 if (info->native_size & (min_align - 1)) {
5402 info->native_size += min_align - 1;
5403 info->native_size &= ~(min_align - 1);
5406 /* Update the class's blittable info, if the layouts don't match */
5407 if (info->native_size != mono_class_value_size (klass, NULL))
5408 klass->blittable = FALSE;
5410 /* If this is an array type, ensure that we have element info */
5411 if (klass->element_class) {
5412 mono_marshal_load_type_info (klass->element_class);
5415 return klass->marshal_info;
5419 * mono_class_native_size:
5422 * Returns: the native size of an object instance (when marshaled
5423 * to unmanaged code)
5426 mono_class_native_size (MonoClass *klass, guint32 *align)
5429 if (!klass->marshal_info)
5430 mono_marshal_load_type_info (klass);
5433 *align = klass->min_align;
5435 return klass->marshal_info->native_size;
5439 * mono_type_native_stack_size:
5440 * @t: the type to return the size it uses on the stack
5442 * Returns: the number of bytes required to hold an instance of this
5443 * type on the native stack
5446 mono_type_native_stack_size (MonoType *t, gint *align)
5450 g_assert (t != NULL);
5461 case MONO_TYPE_BOOLEAN:
5462 case MONO_TYPE_CHAR:
5471 case MONO_TYPE_STRING:
5472 case MONO_TYPE_OBJECT:
5473 case MONO_TYPE_CLASS:
5474 case MONO_TYPE_SZARRAY:
5476 case MONO_TYPE_FNPTR:
5477 case MONO_TYPE_ARRAY:
5478 case MONO_TYPE_TYPEDBYREF:
5489 case MONO_TYPE_VALUETYPE: {
5492 if (t->data.klass->enumtype)
5493 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
5495 size = mono_class_native_size (t->data.klass, align);
5496 *align = *align + 3;
5506 g_error ("type 0x%02x unknown", t->type);
5511 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
5512 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
5513 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
5514 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
5517 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
5518 gboolean as_field, gboolean unicode)
5520 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
5523 switch (native_type) {
5524 case MONO_NATIVE_BOOLEAN:
5527 case MONO_NATIVE_I1:
5528 case MONO_NATIVE_U1:
5531 case MONO_NATIVE_I2:
5532 case MONO_NATIVE_U2:
5533 case MONO_NATIVE_VARIANTBOOL:
5536 case MONO_NATIVE_I4:
5537 case MONO_NATIVE_U4:
5538 case MONO_NATIVE_ERROR:
5541 case MONO_NATIVE_I8:
5542 case MONO_NATIVE_U8:
5543 *align = ALIGNMENT(guint64);
5545 case MONO_NATIVE_R4:
5548 case MONO_NATIVE_R8:
5549 *align = ALIGNMENT(double);
5551 case MONO_NATIVE_INT:
5552 case MONO_NATIVE_UINT:
5553 case MONO_NATIVE_LPSTR:
5554 case MONO_NATIVE_LPWSTR:
5555 case MONO_NATIVE_LPTSTR:
5556 case MONO_NATIVE_BSTR:
5557 case MONO_NATIVE_ANSIBSTR:
5558 case MONO_NATIVE_TBSTR:
5559 case MONO_NATIVE_LPARRAY:
5560 case MONO_NATIVE_SAFEARRAY:
5561 case MONO_NATIVE_IUNKNOWN:
5562 case MONO_NATIVE_IDISPATCH:
5563 case MONO_NATIVE_INTERFACE:
5564 case MONO_NATIVE_ASANY:
5565 case MONO_NATIVE_FUNC:
5566 case MONO_NATIVE_LPSTRUCT:
5567 *align = ALIGNMENT(gpointer);
5568 return sizeof (gpointer);
5569 case MONO_NATIVE_STRUCT:
5570 klass = mono_class_from_mono_type (type);
5571 return mono_class_native_size (klass, align);
5572 case MONO_NATIVE_BYVALTSTR: {
5573 int esize = unicode ? 2: 1;
5576 return mspec->data.array_data.num_elem * esize;
5578 case MONO_NATIVE_BYVALARRAY: {
5580 klass = mono_class_from_mono_type (type);
5581 esize = mono_class_native_size (klass->element_class, align);
5583 return mspec->data.array_data.num_elem * esize;
5585 case MONO_NATIVE_CUSTOM:
5586 g_assert_not_reached ();
5588 case MONO_NATIVE_CURRENCY:
5589 case MONO_NATIVE_VBBYREFSTR:
5591 g_error ("native type %02x not implemented", native_type);
5594 g_assert_not_reached ();
5599 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
5607 t = &o->vtable->klass->byval_arg;
5614 case MONO_TYPE_BOOLEAN:
5617 case MONO_TYPE_CHAR:
5622 return mono_object_unbox (o);
5624 case MONO_TYPE_STRING:
5625 switch (string_encoding) {
5626 case MONO_NATIVE_LPWSTR:
5627 return mono_string_to_utf16 ((MonoString*)o);
5629 case MONO_NATIVE_LPSTR:
5630 return mono_string_to_utf8 ((MonoString*)o);
5633 g_warning ("marshaling conversion %d not implemented", string_encoding);
5634 g_assert_not_reached ();
5637 case MONO_TYPE_CLASS:
5638 case MONO_TYPE_VALUETYPE: {
5642 MonoBoolean delete_old = FALSE;
5644 klass = t->data.klass;
5646 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
5649 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5650 klass->blittable || klass->enumtype)
5651 return mono_object_unbox (o);
5653 res = g_malloc0 (mono_class_native_size (klass, NULL));
5655 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
5659 pa [2] = &delete_old;
5661 mono_runtime_invoke (method, NULL, pa, NULL);
5667 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
5673 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
5678 /* FIXME: Free embedded data as well */
5683 t = &o->vtable->klass->byval_arg;
5685 case MONO_TYPE_STRING:
5686 switch (string_encoding) {
5687 case MONO_NATIVE_LPWSTR:
5690 case MONO_NATIVE_LPSTR:
5694 g_warning ("marshaling conversion %d not implemented", string_encoding);
5695 g_assert_not_reached ();
5698 case MONO_TYPE_CLASS:
5699 case MONO_TYPE_VALUETYPE: {
5700 klass = t->data.klass;
5702 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5703 klass->blittable || klass->enumtype)