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
776 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
777 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
779 case MONO_MARSHAL_CONV_STR_LPWSTR:
780 case MONO_MARSHAL_CONV_STR_BSTR:
781 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
782 case MONO_MARSHAL_CONV_STR_TBSTR:
783 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
784 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
786 g_warning ("marshaling conversion %d not implemented", conv);
787 g_assert_not_reached ();
792 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
793 MonoMarshalSpec *mspec)
798 case MONO_MARSHAL_CONV_BOOL_I4:
799 mono_mb_emit_byte (mb, CEE_LDLOC_1);
800 mono_mb_emit_byte (mb, CEE_LDLOC_0);
801 mono_mb_emit_byte (mb, CEE_LDIND_U1);
802 mono_mb_emit_byte (mb, CEE_STIND_I4);
804 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
805 mono_mb_emit_byte (mb, CEE_LDLOC_1);
806 mono_mb_emit_byte (mb, CEE_LDLOC_0);
807 mono_mb_emit_byte (mb, CEE_LDIND_U1);
808 mono_mb_emit_byte (mb, CEE_NEG);
809 mono_mb_emit_byte (mb, CEE_STIND_I2);
811 case MONO_MARSHAL_CONV_STR_LPWSTR:
812 case MONO_MARSHAL_CONV_STR_LPSTR:
813 case MONO_MARSHAL_CONV_STR_LPTSTR:
814 case MONO_MARSHAL_CONV_STR_BSTR:
815 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
816 case MONO_MARSHAL_CONV_STR_TBSTR:
817 /* free space if free == true */
818 mono_mb_emit_byte (mb, CEE_LDLOC_2);
819 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
820 mono_mb_emit_byte (mb, 4);
821 mono_mb_emit_byte (mb, CEE_LDLOC_1);
822 mono_mb_emit_byte (mb, CEE_LDIND_I);
823 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
824 mono_mb_emit_byte (mb, CEE_MONO_FREE);
826 mono_mb_emit_byte (mb, CEE_LDLOC_1);
827 mono_mb_emit_byte (mb, CEE_LDLOC_0);
828 mono_mb_emit_byte (mb, CEE_LDIND_I);
829 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
830 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
831 mono_mb_emit_byte (mb, conv);
832 mono_mb_emit_byte (mb, CEE_STIND_I);
834 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
835 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
836 case MONO_MARSHAL_CONV_DEL_FTN:
837 mono_mb_emit_byte (mb, CEE_LDLOC_1);
838 mono_mb_emit_byte (mb, CEE_LDLOC_0);
839 mono_mb_emit_byte (mb, CEE_LDIND_I);
840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
841 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
842 mono_mb_emit_byte (mb, conv);
843 mono_mb_emit_byte (mb, CEE_STIND_I);
845 case MONO_MARSHAL_CONV_STR_BYVALSTR:
846 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
850 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
851 mono_mb_emit_byte (mb, CEE_LDLOC_0);
852 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
853 mono_mb_emit_icon (mb, usize);
854 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
855 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
856 mono_mb_emit_byte (mb, conv);
859 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
860 MonoClass *eclass = NULL;
863 if (type->type == MONO_TYPE_SZARRAY) {
864 eclass = type->data.klass;
866 g_assert_not_reached ();
869 if (eclass->valuetype)
870 esize = mono_class_native_size (eclass, NULL);
872 esize = sizeof (gpointer);
877 mono_mb_emit_byte (mb, CEE_LDLOC_0);
878 mono_mb_emit_byte (mb, CEE_LDIND_I);
879 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
881 mono_mb_emit_byte (mb, 0);
883 mono_mb_emit_byte (mb, CEE_LDLOC_1);
884 mono_mb_emit_byte (mb, CEE_LDLOC_0);
885 mono_mb_emit_byte (mb, CEE_LDIND_I);
886 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
887 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
888 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
889 mono_mb_emit_byte (mb, CEE_ADD);
890 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
891 mono_mb_emit_byte (mb, CEE_PREFIX1);
892 mono_mb_emit_byte (mb, CEE_CPBLK);
893 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
896 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
897 int src_var, dst_var;
899 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
900 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
902 mono_mb_emit_byte (mb, CEE_LDLOC_0);
903 mono_mb_emit_byte (mb, CEE_LDIND_I);
904 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
906 mono_mb_emit_byte (mb, 0);
908 /* save the old src pointer */
909 mono_mb_emit_byte (mb, CEE_LDLOC_0);
910 mono_mb_emit_stloc (mb, src_var);
911 /* save the old dst pointer */
912 mono_mb_emit_byte (mb, CEE_LDLOC_1);
913 mono_mb_emit_stloc (mb, dst_var);
915 /* src = pointer to object data */
916 mono_mb_emit_byte (mb, CEE_LDLOC_0);
917 mono_mb_emit_byte (mb, CEE_LDIND_I);
918 mono_mb_emit_icon (mb, sizeof (MonoObject));
919 mono_mb_emit_byte (mb, CEE_ADD);
920 mono_mb_emit_byte (mb, CEE_STLOC_0);
922 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
924 /* restore the old src pointer */
925 mono_mb_emit_ldloc (mb, src_var);
926 mono_mb_emit_byte (mb, CEE_STLOC_0);
927 /* restore the old dst pointer */
928 mono_mb_emit_ldloc (mb, dst_var);
929 mono_mb_emit_byte (mb, CEE_STLOC_1);
931 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
935 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
936 MonoException *exc = mono_get_exception_not_implemented (msg);
939 mono_raise_exception (exc);
945 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
947 MonoMarshalType *info;
951 emit_struct_conv(mb, klass->parent, to_object);
953 info = mono_marshal_load_type_info (klass);
955 if (info->native_size == 0)
958 if (klass->blittable) {
959 int msize = mono_class_value_size (klass, NULL);
960 g_assert (msize == info->native_size);
961 mono_mb_emit_byte (mb, CEE_LDLOC_1);
962 mono_mb_emit_byte (mb, CEE_LDLOC_0);
963 mono_mb_emit_icon (mb, msize);
964 mono_mb_emit_byte (mb, CEE_PREFIX1);
965 mono_mb_emit_byte (mb, CEE_CPBLK);
967 mono_mb_emit_add_to_local (mb, 0, msize);
968 mono_mb_emit_add_to_local (mb, 1, msize);
972 for (i = 0; i < info->num_fields; i++) {
973 MonoMarshalNative ntype;
974 MonoMarshalConv conv;
975 MonoType *ftype = info->fields [i].field->type;
978 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
980 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
983 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
986 msize = klass->instance_size - info->fields [i].field->offset;
987 usize = info->native_size - info->fields [i].offset;
989 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
990 usize = info->fields [i + 1].offset - info->fields [i].offset;
992 if ((msize < 0) || (usize < 0))
993 /* This happens with GC aware auto layout */
994 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
996 g_assert ((msize >= 0) && (usize >= 0));
999 case MONO_MARSHAL_CONV_NONE: {
1002 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1003 ftype->type == MONO_TYPE_U) {
1004 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1005 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1006 mono_mb_emit_byte (mb, CEE_LDIND_I);
1007 mono_mb_emit_byte (mb, CEE_STIND_I);
1016 #if SIZEOF_VOID_P == 4
1019 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1020 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1021 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1022 mono_mb_emit_byte (mb, CEE_STIND_I4);
1026 case MONO_TYPE_BOOLEAN:
1027 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1028 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1029 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1030 mono_mb_emit_byte (mb, CEE_STIND_I1);
1034 case MONO_TYPE_CHAR:
1035 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1036 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1037 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1038 mono_mb_emit_byte (mb, CEE_STIND_I2);
1042 #if SIZEOF_VOID_P == 8
1045 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1046 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1047 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1048 mono_mb_emit_byte (mb, CEE_STIND_I8);
1051 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1052 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1053 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1054 mono_mb_emit_byte (mb, CEE_STIND_R4);
1057 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1058 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1059 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1060 mono_mb_emit_byte (mb, CEE_STIND_R8);
1062 case MONO_TYPE_VALUETYPE:
1063 if (ftype->data.klass->enumtype) {
1064 t = ftype->data.klass->enum_basetype->type;
1067 emit_struct_conv (mb, ftype->data.klass, to_object);
1070 g_warning ("marshaling type %02x not implemented", ftype->type);
1071 g_assert_not_reached ();
1077 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1079 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1083 mono_mb_emit_add_to_local (mb, 0, usize);
1084 mono_mb_emit_add_to_local (mb, 1, msize);
1086 mono_mb_emit_add_to_local (mb, 0, msize);
1087 mono_mb_emit_add_to_local (mb, 1, usize);
1093 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1095 static MonoMethodSignature *state_check_sig = NULL;
1098 if (!state_check_sig) {
1099 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1100 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1101 state_check_sig->pinvoke = 0;
1104 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1105 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1106 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1107 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1108 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1110 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1112 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1115 static MonoAsyncResult *
1116 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1118 MonoMethodMessage *msg;
1119 MonoDelegate *async_callback;
1123 MonoMethod *method = NULL;
1126 g_assert (delegate);
1128 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1130 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1131 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1133 /* If the target is a proxy, make a direct call. Is proxy's work
1134 // to make the call asynchronous.
1136 MonoAsyncResult *ares;
1138 MonoArray *out_args;
1140 method = delegate->method_info->method;
1142 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1143 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1144 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1145 ares->async_delegate = (MonoObject *)delegate;
1146 ares->async_callback = (MonoObject *)async_callback;
1147 msg->async_result = ares;
1148 msg->call_type = CallType_BeginInvoke;
1150 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1155 klass = delegate->object.vtable->klass;
1157 method = mono_get_delegate_invoke (klass);
1158 for (i = 0; i < klass->method.count; ++i) {
1159 if (klass->methods [i]->name[0] == 'B' &&
1160 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1161 method = klass->methods [i];
1166 g_assert (method != NULL);
1168 im = mono_get_delegate_invoke (method->klass);
1169 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1171 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1175 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1177 int i, params_var, tmp_var;
1179 /* allocate local (pointer) *params[] */
1180 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1181 /* allocate local (pointer) tmp */
1182 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1184 /* alloate space on stack to store an array of pointers to the arguments */
1185 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1186 mono_mb_emit_byte (mb, CEE_PREFIX1);
1187 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1188 mono_mb_emit_stloc (mb, params_var);
1191 mono_mb_emit_ldloc (mb, params_var);
1192 mono_mb_emit_stloc (mb, tmp_var);
1194 if (save_this && sig->hasthis) {
1195 mono_mb_emit_ldloc (mb, tmp_var);
1196 mono_mb_emit_ldarg_addr (mb, 0);
1197 mono_mb_emit_byte (mb, CEE_STIND_I);
1198 /* tmp = tmp + sizeof (gpointer) */
1199 if (sig->param_count)
1200 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1204 for (i = 0; i < sig->param_count; i++) {
1205 mono_mb_emit_ldloc (mb, tmp_var);
1206 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1207 mono_mb_emit_byte (mb, CEE_STIND_I);
1208 /* tmp = tmp + sizeof (gpointer) */
1209 if (i < (sig->param_count - 1))
1210 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1217 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1221 GString *res = g_string_new ("");
1224 g_string_append (res, prefix);
1225 g_string_append_c (res, '_');
1228 mono_type_get_desc (res, sig->ret, FALSE);
1230 for (i = 0; i < sig->param_count; ++i) {
1231 g_string_append_c (res, '_');
1232 mono_type_get_desc (res, sig->params [i], FALSE);
1235 g_string_free (res, FALSE);
1240 * mono_marshal_get_string_encoding:
1242 * Return the string encoding which should be used for a given parameter.
1244 static MonoMarshalNative
1245 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1247 /* First try the parameter marshal info */
1249 if (spec->native == MONO_NATIVE_LPARRAY) {
1250 if (spec->data.array_data.elem_type != 0)
1251 return spec->data.array_data.elem_type;
1254 return spec->native;
1258 return MONO_NATIVE_LPSTR;
1260 /* Then try the method level marshal info */
1261 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1262 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1263 return MONO_NATIVE_LPSTR;
1264 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1265 return MONO_NATIVE_LPWSTR;
1266 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1267 return MONO_NATIVE_LPTSTR;
1269 return MONO_NATIVE_LPSTR;
1273 static inline MonoMethod*
1274 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1278 EnterCriticalSection (&marshal_mutex);
1279 res = g_hash_table_lookup (cache, key);
1280 LeaveCriticalSection (&marshal_mutex);
1284 /* Create the method from the builder and place it in the cache */
1285 static inline MonoMethod*
1286 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1287 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1292 EnterCriticalSection (&marshal_mutex);
1293 res = g_hash_table_lookup (cache, key);
1295 /* This does not acquire any locks */
1296 res = mono_mb_create_method (mb, sig, max_stack);
1297 g_hash_table_insert (cache, key, res);
1298 mono_g_hash_table_insert (wrapper_hash, res, key);
1301 /* Somebody created it before us */
1303 LeaveCriticalSection (&marshal_mutex);
1309 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1313 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1316 EnterCriticalSection (&marshal_mutex);
1317 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1318 LeaveCriticalSection (&marshal_mutex);
1320 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1321 /* See mono_marshal_get_remoting_invoke_with_check */
1322 return (MonoMethod*)((char*)res - 1);
1328 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1330 MonoMethodSignature *sig;
1331 static MonoMethodSignature *csig = NULL;
1332 MonoMethodBuilder *mb;
1338 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1339 !strcmp (method->name, "BeginInvoke"));
1341 sig = method->signature;
1343 cache = method->klass->image->delegate_begin_invoke_cache;
1344 if ((res = mono_marshal_find_in_cache (cache, sig)))
1347 g_assert (sig->hasthis);
1350 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1352 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1353 csig->ret = &mono_defaults.object_class->byval_arg;
1354 csig->params [0] = &mono_defaults.object_class->byval_arg;
1355 csig->params [1] = &mono_defaults.int_class->byval_arg;
1358 name = mono_signature_to_name (sig, "begin_invoke");
1359 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1362 mb->method->save_lmf = 1;
1364 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1366 mono_mb_emit_ldarg (mb, 0);
1367 mono_mb_emit_ldloc (mb, params_var);
1368 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1369 emit_thread_interrupt_checkpoint (mb);
1370 mono_mb_emit_byte (mb, CEE_RET);
1372 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1378 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1380 MonoDomain *domain = mono_domain_get ();
1381 MonoAsyncResult *ares;
1382 MonoMethod *method = NULL;
1383 MonoMethodSignature *sig;
1384 MonoMethodMessage *msg;
1385 MonoObject *res, *exc;
1386 MonoArray *out_args;
1390 g_assert (delegate);
1392 if (!delegate->method_info || !delegate->method_info->method)
1393 g_assert_not_reached ();
1395 klass = delegate->object.vtable->klass;
1397 for (i = 0; i < klass->method.count; ++i) {
1398 if (klass->methods [i]->name[0] == 'E' &&
1399 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1400 method = klass->methods [i];
1405 g_assert (method != NULL);
1407 sig = method->signature;
1409 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1411 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1414 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1415 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1416 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1417 mono_message_init (domain, msg, delegate->method_info, NULL);
1418 msg->call_type = CallType_EndInvoke;
1419 msg->async_result = ares;
1420 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1423 res = mono_thread_pool_finish (ares, &out_args, &exc);
1426 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1428 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1430 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1432 mono_raise_exception ((MonoException*)exc);
1435 mono_method_return_message_restore (method, params, out_args);
1440 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1442 if (return_type->byref)
1443 return_type = &mono_defaults.int_class->byval_arg;
1444 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1445 return_type = return_type->data.klass->enum_basetype;
1447 switch (return_type->type) {
1448 case MONO_TYPE_VOID:
1449 g_assert_not_reached ();
1452 case MONO_TYPE_STRING:
1453 case MONO_TYPE_CLASS:
1454 case MONO_TYPE_OBJECT:
1455 case MONO_TYPE_ARRAY:
1456 case MONO_TYPE_SZARRAY:
1460 case MONO_TYPE_BOOLEAN:
1461 mono_mb_emit_byte (mb, CEE_UNBOX);
1462 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1463 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1466 mono_mb_emit_byte (mb, CEE_UNBOX);
1467 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1468 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1471 case MONO_TYPE_CHAR:
1472 mono_mb_emit_byte (mb, CEE_UNBOX);
1473 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1474 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1477 mono_mb_emit_byte (mb, CEE_UNBOX);
1478 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1479 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1483 mono_mb_emit_byte (mb, CEE_UNBOX);
1484 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1485 mono_mb_emit_byte (mb, CEE_LDIND_I);
1488 mono_mb_emit_byte (mb, CEE_UNBOX);
1489 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1490 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1493 mono_mb_emit_byte (mb, CEE_UNBOX);
1494 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1495 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1499 mono_mb_emit_byte (mb, CEE_UNBOX);
1500 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1501 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1504 mono_mb_emit_byte (mb, CEE_UNBOX);
1505 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1506 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1509 mono_mb_emit_byte (mb, CEE_UNBOX);
1510 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1511 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1513 case MONO_TYPE_VALUETYPE: {
1515 mono_mb_emit_byte (mb, CEE_UNBOX);
1516 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1517 mono_mb_emit_i4 (mb, class);
1518 mono_mb_emit_byte (mb, CEE_LDOBJ);
1519 mono_mb_emit_i4 (mb, class);
1523 g_warning ("type 0x%x not handled", return_type->type);
1524 g_assert_not_reached ();
1527 mono_mb_emit_byte (mb, CEE_RET);
1531 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1533 MonoMethodSignature *sig;
1534 static MonoMethodSignature *csig = NULL;
1535 MonoMethodBuilder *mb;
1541 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1542 !strcmp (method->name, "EndInvoke"));
1544 sig = method->signature;
1546 cache = method->klass->image->delegate_end_invoke_cache;
1547 if ((res = mono_marshal_find_in_cache (cache, sig)))
1550 g_assert (sig->hasthis);
1553 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1555 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1556 csig->ret = &mono_defaults.object_class->byval_arg;
1557 csig->params [0] = &mono_defaults.object_class->byval_arg;
1558 csig->params [1] = &mono_defaults.int_class->byval_arg;
1561 name = mono_signature_to_name (sig, "end_invoke");
1562 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1565 mb->method->save_lmf = 1;
1567 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1569 mono_mb_emit_ldarg (mb, 0);
1570 mono_mb_emit_ldloc (mb, params_var);
1571 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1572 emit_thread_interrupt_checkpoint (mb);
1574 if (sig->ret->type == MONO_TYPE_VOID) {
1575 mono_mb_emit_byte (mb, CEE_POP);
1576 mono_mb_emit_byte (mb, CEE_RET);
1578 mono_mb_emit_restore_result (mb, sig->ret);
1580 res = mono_mb_create_and_cache (cache, sig,
1581 mb, sig, sig->param_count + 16);
1588 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1590 MonoMethodMessage *msg;
1591 MonoTransparentProxy *this;
1592 MonoObject *res, *exc;
1593 MonoArray *out_args;
1595 this = *((MonoTransparentProxy **)params [0]);
1598 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1600 /* skip the this pointer */
1603 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1606 MonoMethodSignature *sig = method->signature;
1607 int count = sig->param_count;
1608 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1610 for (i=0; i<count; i++) {
1611 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1612 if (class->valuetype) {
1613 if (sig->params [i]->byref)
1614 mparams[i] = *((gpointer *)params [i]);
1616 mparams[i] = params [i];
1618 mparams[i] = *((gpointer**)params [i]);
1622 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox (this): this, mparams, NULL);
1625 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1627 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1630 mono_raise_exception ((MonoException *)exc);
1632 mono_method_return_message_restore (method, params, out_args);
1638 mono_marshal_get_remoting_invoke (MonoMethod *method)
1640 MonoMethodSignature *sig;
1641 static MonoMethodSignature *csig = NULL;
1642 MonoMethodBuilder *mb;
1649 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1652 sig = method->signature;
1654 /* we cant remote methods without this pointer */
1658 cache = method->klass->image->remoting_invoke_cache;
1659 if ((res = mono_marshal_find_in_cache (cache, method)))
1663 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1664 csig->params [0] = &mono_defaults.int_class->byval_arg;
1665 csig->params [1] = &mono_defaults.int_class->byval_arg;
1666 csig->ret = &mono_defaults.object_class->byval_arg;
1670 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1671 mb->method->save_lmf = 1;
1673 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1675 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1676 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1677 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1678 mono_mb_emit_ldloc (mb, params_var);
1679 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1680 emit_thread_interrupt_checkpoint (mb);
1682 if (sig->ret->type == MONO_TYPE_VOID) {
1683 mono_mb_emit_byte (mb, CEE_POP);
1684 mono_mb_emit_byte (mb, CEE_RET);
1686 mono_mb_emit_restore_result (mb, sig->ret);
1689 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1696 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1698 MonoMethodSignature *sig;
1699 MonoMethodBuilder *mb;
1700 MonoMethod *res, *native;
1706 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1709 sig = method->signature;
1711 /* we cant remote methods without this pointer */
1712 g_assert (sig->hasthis);
1714 cache = method->klass->image->remoting_invoke_cache;
1715 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1718 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1720 mono_mb_emit_ldarg (mb, 0);
1721 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1723 native = mono_marshal_get_remoting_invoke (method);
1725 for (i = 0; i <= sig->param_count; i++)
1726 mono_mb_emit_ldarg (mb, i);
1728 mono_mb_emit_managed_call (mb, native, native->signature);
1729 mono_mb_emit_byte (mb, CEE_RET);
1731 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1733 for (i = 0; i <= sig->param_count; i++)
1734 mono_mb_emit_ldarg (mb, i);
1736 mono_mb_emit_managed_call (mb, method, method->signature);
1737 mono_mb_emit_byte (mb, CEE_RET);
1739 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1740 mb, sig, sig->param_count + 16);
1747 * the returned method invokes all methods in a multicast delegate
1750 mono_marshal_get_delegate_invoke (MonoMethod *method)
1752 MonoMethodSignature *sig, *static_sig;
1754 MonoMethodBuilder *mb;
1760 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1761 !strcmp (method->name, "Invoke"));
1763 sig = method->signature;
1765 cache = method->klass->image->delegate_invoke_cache;
1766 if ((res = mono_marshal_find_in_cache (cache, sig)))
1769 static_sig = mono_metadata_signature_dup (sig);
1770 static_sig->hasthis = 0;
1772 name = mono_signature_to_name (sig, "invoke");
1773 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1776 /* allocate local 0 (object) */
1777 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1779 g_assert (sig->hasthis);
1783 * prev.Invoke( args .. );
1784 * return this.<target>( args .. );
1787 /* this wrapper can be used in unmanaged-managed transitions */
1788 emit_thread_interrupt_checkpoint (mb);
1790 /* get this->prev */
1791 mono_mb_emit_ldarg (mb, 0);
1792 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
1793 mono_mb_emit_byte (mb, CEE_LDIND_I );
1794 mono_mb_emit_stloc (mb, 0);
1796 /* if prev != null */
1797 mono_mb_emit_ldloc (mb, 0);
1798 mono_mb_emit_byte (mb, CEE_BRFALSE);
1801 mono_mb_emit_i4 (mb, 0);
1804 mono_mb_emit_ldloc (mb, 0);
1805 for (i = 0; i < sig->param_count; i++)
1806 mono_mb_emit_ldarg (mb, i + 1);
1807 mono_mb_emit_managed_call (mb, method, method->signature);
1808 if (sig->ret->type != MONO_TYPE_VOID)
1809 mono_mb_emit_byte (mb, CEE_POP);
1811 /* continued or prev == null */
1812 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1814 /* get this->target */
1815 mono_mb_emit_ldarg (mb, 0);
1816 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
1817 mono_mb_emit_byte (mb, CEE_LDIND_I );
1818 mono_mb_emit_stloc (mb, 0);
1820 /* if target != null */
1821 mono_mb_emit_ldloc (mb, 0);
1822 mono_mb_emit_byte (mb, CEE_BRFALSE);
1824 mono_mb_emit_i4 (mb, 0);
1826 /* then call this->method_ptr nonstatic */
1827 mono_mb_emit_ldloc (mb, 0);
1828 for (i = 0; i < sig->param_count; ++i)
1829 mono_mb_emit_ldarg (mb, i + 1);
1830 mono_mb_emit_ldarg (mb, 0);
1831 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1832 mono_mb_emit_byte (mb, CEE_LDIND_I );
1833 mono_mb_emit_byte (mb, CEE_CALLI);
1834 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
1836 mono_mb_emit_byte (mb, CEE_BR);
1838 mono_mb_emit_i4 (mb, 0);
1840 /* else [target == null] call this->method_ptr static */
1841 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1843 for (i = 0; i < sig->param_count; ++i)
1844 mono_mb_emit_ldarg (mb, i + 1);
1845 mono_mb_emit_ldarg (mb, 0);
1846 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1847 mono_mb_emit_byte (mb, CEE_LDIND_I );
1848 mono_mb_emit_byte (mb, CEE_CALLI);
1849 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
1852 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
1853 mono_mb_emit_byte (mb, CEE_RET);
1855 res = mono_mb_create_and_cache (cache, sig,
1856 mb, sig, sig->param_count + 16);
1864 MonoMethodSignature *sig;
1868 * generates IL code for the runtime invoke function
1869 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
1871 * we also catch exceptions if exc != null
1874 mono_marshal_get_runtime_invoke (MonoMethod *method)
1876 MonoMethodSignature *sig, *csig, *callsig;
1877 MonoExceptionClause *clause;
1878 MonoMethodHeader *header;
1879 MonoMethodBuilder *mb;
1880 GHashTable *cache = NULL;
1881 MonoClass *target_klass;
1882 MonoMethod *res = NULL;
1884 static MonoString *string_dummy = NULL;
1890 target_klass = method->klass;
1892 EnterCriticalSection (&marshal_mutex);
1894 if (method->string_ctor) {
1895 static GSList *strsig_list = NULL;
1899 for (item = strsig_list; item; item = item->next) {
1901 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
1907 callsig = mono_metadata_signature_dup (method->signature);
1908 callsig->ret = &mono_defaults.string_class->byval_arg;
1909 cs = g_new (CtorSigPair, 1);
1912 strsig_list = g_slist_prepend (strsig_list, cs);
1915 callsig = method->signature;
1918 cache = method->klass->image->runtime_invoke_cache;
1920 /* from mono_marshal_find_in_cache */
1921 res = g_hash_table_lookup (cache, callsig);
1922 LeaveCriticalSection (&marshal_mutex);
1928 target_klass = mono_defaults.object_class;
1930 /* to make it work with our special string constructors */
1932 string_dummy = mono_string_new_wrapper ("dummy");
1934 sig = method->signature;
1936 csig = mono_metadata_signature_alloc (method->klass->image, 4);
1938 csig->ret = &mono_defaults.object_class->byval_arg;
1939 csig->params [0] = &mono_defaults.object_class->byval_arg;
1940 csig->params [1] = &mono_defaults.int_class->byval_arg;
1941 csig->params [2] = &mono_defaults.int_class->byval_arg;
1942 csig->params [3] = &mono_defaults.int_class->byval_arg;
1944 name = mono_signature_to_name (callsig, "runtime_invoke");
1945 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
1948 /* allocate local 0 (object) tmp */
1949 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1950 /* allocate local 1 (object) exc */
1951 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1953 /* cond set *exc to null */
1954 mono_mb_emit_byte (mb, CEE_LDARG_2);
1955 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1956 mono_mb_emit_byte (mb, 3);
1957 mono_mb_emit_byte (mb, CEE_LDARG_2);
1958 mono_mb_emit_byte (mb, CEE_LDNULL);
1959 mono_mb_emit_byte (mb, CEE_STIND_I);
1962 if (method->string_ctor) {
1963 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1964 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1965 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
1967 mono_mb_emit_ldarg (mb, 0);
1971 for (i = 0; i < sig->param_count; i++) {
1972 MonoType *t = sig->params [i];
1975 mono_mb_emit_ldarg (mb, 1);
1977 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
1978 mono_mb_emit_byte (mb, CEE_ADD);
1980 mono_mb_emit_byte (mb, CEE_LDIND_I);
1985 type = sig->params [i]->type;
1989 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1991 case MONO_TYPE_BOOLEAN:
1993 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1996 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1999 case MONO_TYPE_CHAR:
2000 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2004 mono_mb_emit_byte (mb, CEE_LDIND_I);
2007 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2010 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2013 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2016 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2020 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2022 case MONO_TYPE_STRING:
2023 case MONO_TYPE_CLASS:
2024 case MONO_TYPE_ARRAY:
2026 case MONO_TYPE_SZARRAY:
2027 case MONO_TYPE_OBJECT:
2030 case MONO_TYPE_VALUETYPE:
2031 if (t->data.klass->enumtype) {
2032 type = t->data.klass->enum_basetype->type;
2035 mono_mb_emit_byte (mb, CEE_LDOBJ);
2036 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2039 g_assert_not_reached ();
2043 mono_mb_emit_ldarg (mb, 3);
2044 mono_mb_emit_calli (mb, callsig);
2046 if (sig->ret->byref) {
2048 g_assert_not_reached ();
2052 switch (sig->ret->type) {
2053 case MONO_TYPE_VOID:
2054 if (!method->string_ctor)
2055 mono_mb_emit_byte (mb, CEE_LDNULL);
2057 case MONO_TYPE_BOOLEAN:
2058 case MONO_TYPE_CHAR:
2071 case MONO_TYPE_VALUETYPE:
2072 /* box value types */
2073 mono_mb_emit_byte (mb, CEE_BOX);
2074 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2076 case MONO_TYPE_STRING:
2077 case MONO_TYPE_CLASS:
2078 case MONO_TYPE_ARRAY:
2079 case MONO_TYPE_SZARRAY:
2080 case MONO_TYPE_OBJECT:
2085 g_assert_not_reached ();
2088 mono_mb_emit_stloc (mb, 0);
2090 mono_mb_emit_byte (mb, CEE_LEAVE);
2092 mono_mb_emit_i4 (mb, 0);
2094 clause = g_new0 (MonoExceptionClause, 1);
2095 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2096 clause->try_len = mb->pos;
2099 clause->token_or_filter = mb->pos;
2101 mono_mb_emit_byte (mb, CEE_POP);
2102 mono_mb_emit_byte (mb, CEE_LDARG_2);
2103 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2104 mono_mb_emit_byte (mb, CEE_PREFIX1);
2105 mono_mb_emit_byte (mb, CEE_CGT_UN);
2106 mono_mb_emit_byte (mb, CEE_PREFIX1);
2107 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2109 clause->handler_offset = mb->pos;
2112 /* store exception */
2113 mono_mb_emit_stloc (mb, 1);
2115 mono_mb_emit_byte (mb, CEE_LDARG_2);
2116 mono_mb_emit_ldloc (mb, 1);
2117 mono_mb_emit_byte (mb, CEE_STIND_I);
2119 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2120 mono_mb_emit_stloc (mb, 0);
2122 mono_mb_emit_byte (mb, CEE_LEAVE);
2123 mono_mb_emit_i4 (mb, 0);
2125 clause->handler_len = mb->pos - clause->handler_offset;
2128 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2129 mono_mb_emit_ldloc (mb, 0);
2130 mono_mb_emit_byte (mb, CEE_RET);
2132 /* taken from mono_mb_create_and_cache */
2133 EnterCriticalSection (&marshal_mutex);
2135 res = g_hash_table_lookup (cache, callsig);
2136 /* Somebody may have created it before us */
2138 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2139 g_hash_table_insert (cache, callsig, res);
2140 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2143 LeaveCriticalSection (&marshal_mutex);
2144 /* end mono_mb_create_and_cache */
2148 header = ((MonoMethodNormal *)res)->header;
2149 header->num_clauses = 1;
2150 header->clauses = clause;
2156 * generates IL code to call managed methods from unmanaged code
2159 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2161 MonoMethodSignature *sig, *csig;
2162 MonoMethodBuilder *mb;
2163 MonoClass *klass = NULL;
2166 int i, pos = 0, *tmp_locals;
2167 static MonoMethodSignature *alloc_sig = NULL;
2170 g_assert (method != NULL);
2171 g_assert (!method->signature->pinvoke);
2173 cache = method->klass->image->managed_wrapper_cache;
2174 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2177 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2179 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2180 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2181 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2182 alloc_sig->pinvoke = 1;
2186 /* fime: howto free that memory ? */
2189 sig = method->signature;
2191 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2193 /* allocate local 0 (pointer) src_ptr */
2194 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2195 /* allocate local 1 (pointer) dst_ptr */
2196 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2197 /* allocate local 2 (boolean) delete_old */
2198 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2200 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2201 /* allocate local 3 to store the return value */
2202 mono_mb_add_local (mb, sig->ret);
2205 mono_mb_emit_icon (mb, 0);
2206 mono_mb_emit_byte (mb, CEE_STLOC_2);
2208 /* we copy the signature, so that we can modify it */
2209 csig = mono_metadata_signature_dup (sig);
2213 #ifdef PLATFORM_WIN32
2215 * Under windows, delegates passed to native code must use the STDCALL
2216 * calling convention.
2218 csig->call_convention = MONO_CALL_STDCALL;
2221 /* fixme: howto handle this ? */
2225 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2226 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2227 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2232 g_assert_not_reached ();
2237 /* we first do all conversions */
2238 tmp_locals = alloca (sizeof (int) * sig->param_count);
2239 for (i = 0; i < sig->param_count; i ++) {
2240 MonoType *t = sig->params [i];
2241 MonoMarshalSpec *spec = mspecs [i + 1];
2245 /* Ensure that we have marshalling info for this param */
2246 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2248 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2251 MonoMethod *marshal_native_to_managed;
2252 MonoMethod *get_instance;
2254 /* FIXME: Call CleanUpNativeData after the call */
2256 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2257 g_assert (mtype != NULL);
2258 mklass = mono_class_from_mono_type (mtype);
2259 g_assert (mklass != NULL);
2261 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2262 g_assert (marshal_native_to_managed);
2263 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2264 g_assert (get_instance);
2267 case MONO_TYPE_CLASS:
2268 case MONO_TYPE_OBJECT:
2269 case MONO_TYPE_STRING:
2270 case MONO_TYPE_ARRAY:
2271 case MONO_TYPE_SZARRAY:
2275 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2277 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2279 mono_mb_emit_byte (mb, CEE_CALL);
2280 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2282 mono_mb_emit_ldarg (mb, i);
2284 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2285 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2287 mono_mb_emit_stloc (mb, tmp_locals [i]);
2290 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2291 g_assert_not_reached ();
2298 case MONO_TYPE_CLASS: {
2299 klass = t->data.klass;
2301 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2303 if (klass->delegate) {
2304 g_assert (!t->byref);
2305 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2306 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2307 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2308 mono_mb_emit_ldarg (mb, i);
2309 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2310 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
2311 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_FTN_DEL);
2312 mono_mb_emit_stloc (mb, tmp_locals [i]);
2316 /* FIXME: Raise a MarshalDirectiveException here */
2317 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2319 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2320 mono_mb_emit_byte (mb, CEE_LDNULL);
2321 mono_mb_emit_stloc (mb, tmp_locals [i]);
2326 mono_mb_emit_ldarg (mb, i);
2330 /* Check for NULL and raise an exception */
2331 mono_mb_emit_byte (mb, CEE_BRTRUE);
2333 mono_mb_emit_i4 (mb, 0);
2335 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2337 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2338 mono_mb_emit_ldarg (mb, i);
2339 mono_mb_emit_byte (mb, CEE_LDIND_I);
2342 mono_mb_emit_byte (mb, CEE_STLOC_0);
2344 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2345 mono_mb_emit_stloc (mb, tmp_locals [i]);
2347 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2348 mono_mb_emit_byte (mb, CEE_BRFALSE);
2350 mono_mb_emit_i4 (mb, 0);
2352 /* Create and set dst */
2353 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2354 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2355 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2356 mono_mb_emit_stloc (mb, tmp_locals [i]);
2357 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2358 mono_mb_emit_icon (mb, sizeof (MonoObject));
2359 mono_mb_emit_byte (mb, CEE_ADD);
2360 mono_mb_emit_byte (mb, CEE_STLOC_1);
2362 /* emit valuetype conversion code */
2363 emit_struct_conv (mb, klass, TRUE);
2365 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2368 case MONO_TYPE_VALUETYPE:
2370 klass = sig->params [i]->data.klass;
2371 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2372 klass->blittable || klass->enumtype)
2375 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2377 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2381 mono_mb_emit_ldarg (mb, i);
2383 mono_mb_emit_ldarg_addr (mb, i);
2384 mono_mb_emit_byte (mb, CEE_STLOC_0);
2387 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2388 mono_mb_emit_byte (mb, CEE_BRFALSE);
2390 mono_mb_emit_i4 (mb, 0);
2393 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2394 mono_mb_emit_byte (mb, CEE_STLOC_1);
2396 /* emit valuetype conversion code */
2397 emit_struct_conv (mb, klass, TRUE);
2400 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2402 case MONO_TYPE_STRING: {
2403 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2408 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2409 csig->params [i] = &mono_defaults.int_class->byval_arg;
2411 mono_mb_emit_ldarg (mb, i);
2412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2413 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2416 case MONO_NATIVE_LPWSTR:
2417 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
2419 case MONO_NATIVE_LPSTR:
2420 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
2423 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2424 MonoException *exc = mono_get_exception_not_implemented (msg);
2427 mono_raise_exception (exc);
2431 mono_mb_emit_stloc (mb, tmp_locals [i]);
2434 case MONO_TYPE_ARRAY:
2435 case MONO_TYPE_SZARRAY:
2439 klass = mono_class_from_mono_type (t);
2441 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2442 csig->params [i] = &mono_defaults.int_class->byval_arg;
2444 g_warning ("array marshaling not implemented");
2445 g_assert_not_reached ();
2450 for (i = 0; i < sig->param_count; i++) {
2451 MonoType *t = sig->params [i];
2454 case MONO_TYPE_BOOLEAN:
2468 mono_mb_emit_ldarg (mb, i);
2470 case MONO_TYPE_STRING:
2472 mono_mb_emit_ldarg (mb, i);
2474 g_assert (tmp_locals [i]);
2475 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2478 case MONO_TYPE_CLASS:
2480 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2482 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2484 case MONO_TYPE_ARRAY:
2485 case MONO_TYPE_SZARRAY:
2486 case MONO_TYPE_OBJECT:
2488 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2490 mono_mb_emit_ldarg (mb, i);
2492 case MONO_TYPE_VALUETYPE:
2493 klass = sig->params [i]->data.klass;
2494 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2495 klass->blittable || klass->enumtype) {
2496 mono_mb_emit_ldarg (mb, i);
2500 g_assert (tmp_locals [i]);
2502 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2504 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2507 g_warning ("type 0x%02x unknown", t->type);
2508 g_assert_not_reached ();
2512 emit_thread_interrupt_checkpoint (mb);
2513 mono_mb_emit_managed_call (mb, method, NULL);
2515 /* Ensure that we have marshalling info for the return */
2516 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2518 if (!sig->ret->byref) {
2519 switch (sig->ret->type) {
2520 case MONO_TYPE_VOID:
2522 case MONO_TYPE_BOOLEAN:
2536 case MONO_TYPE_OBJECT:
2537 mono_mb_emit_byte (mb, CEE_STLOC_3);
2539 case MONO_TYPE_STRING:
2540 csig->ret = &mono_defaults.int_class->byval_arg;
2542 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2543 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2544 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
2545 mono_mb_emit_byte (mb, CEE_STLOC_3);
2547 case MONO_TYPE_VALUETYPE:
2548 klass = sig->ret->data.klass;
2549 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2550 klass->blittable || klass->enumtype)
2553 /* load pointer to returned value type */
2554 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2555 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2557 /* store the address of the source into local variable 0 */
2558 mono_mb_emit_byte (mb, CEE_STLOC_0);
2559 /* allocate space for the native struct and
2560 * store the address into dst_ptr */
2561 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2562 g_assert (retobj_var);
2563 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2564 mono_mb_emit_byte (mb, CEE_CONV_I);
2565 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2566 emit_thread_interrupt_checkpoint (mb);
2567 mono_mb_emit_byte (mb, CEE_STLOC_1);
2568 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2569 mono_mb_emit_stloc (mb, retobj_var);
2571 /* emit valuetype conversion code */
2572 emit_struct_conv (mb, klass, FALSE);
2574 case MONO_TYPE_CLASS: {
2577 klass = sig->ret->data.klass;
2579 if (klass->delegate) {
2580 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2581 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2582 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
2583 mono_mb_emit_byte (mb, CEE_STLOC_3);
2587 /* FIXME: Raise a MarshalDirectiveException here */
2588 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2590 mono_mb_emit_byte (mb, CEE_STLOC_0);
2591 /* Check for null */
2592 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2593 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2594 mono_mb_emit_byte (mb, CEE_LDNULL);
2595 mono_mb_emit_byte (mb, CEE_STLOC_3);
2596 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2598 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2601 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2602 mono_mb_emit_icon (mb, sizeof (MonoObject));
2603 mono_mb_emit_byte (mb, CEE_ADD);
2604 mono_mb_emit_byte (mb, CEE_STLOC_0);
2606 /* Allocate and set dest */
2607 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2608 mono_mb_emit_byte (mb, CEE_CONV_I);
2609 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2610 emit_thread_interrupt_checkpoint (mb);
2611 mono_mb_emit_byte (mb, CEE_DUP);
2612 mono_mb_emit_byte (mb, CEE_STLOC_1);
2613 mono_mb_emit_byte (mb, CEE_STLOC_3);
2615 emit_struct_conv (mb, klass, FALSE);
2617 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2621 g_warning ("return type 0x%02x unknown", sig->ret->type);
2622 g_assert_not_reached ();
2625 mono_mb_emit_byte (mb, CEE_STLOC_3);
2628 /* Convert byref arguments back */
2629 for (i = 0; i < sig->param_count; i ++) {
2630 MonoType *t = sig->params [i];
2636 case MONO_TYPE_CLASS: {
2639 klass = t->data.klass;
2641 /* Check for null */
2642 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2643 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2644 mono_mb_emit_ldarg (mb, i);
2645 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2646 mono_mb_emit_byte (mb, CEE_STIND_I);
2647 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2649 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2652 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2653 mono_mb_emit_icon (mb, sizeof (MonoObject));
2654 mono_mb_emit_byte (mb, CEE_ADD);
2655 mono_mb_emit_byte (mb, CEE_STLOC_0);
2657 /* Allocate and set dest */
2658 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2659 mono_mb_emit_byte (mb, CEE_CONV_I);
2660 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2661 emit_thread_interrupt_checkpoint (mb);
2662 mono_mb_emit_byte (mb, CEE_STLOC_1);
2664 /* Update argument pointer */
2665 mono_mb_emit_ldarg (mb, i);
2666 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2667 mono_mb_emit_byte (mb, CEE_STIND_I);
2669 /* emit valuetype conversion code */
2670 emit_struct_conv (mb, klass, FALSE);
2672 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2675 case MONO_TYPE_VALUETYPE: {
2678 klass = t->data.klass;
2680 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2681 klass->blittable || klass->enumtype) {
2685 /* Check for null */
2686 mono_mb_emit_ldarg (mb, i);
2687 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2690 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2691 mono_mb_emit_byte (mb, CEE_STLOC_0);
2694 mono_mb_emit_ldarg (mb, i);
2695 mono_mb_emit_byte (mb, CEE_STLOC_1);
2697 /* emit valuetype conversion code */
2698 emit_struct_conv (mb, klass, FALSE);
2700 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2707 mono_mb_emit_ldloc (mb, retobj_var);
2708 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2709 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2710 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2713 if (!MONO_TYPE_IS_VOID(sig->ret))
2714 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2715 mono_mb_emit_byte (mb, CEE_RET);
2719 res = mono_mb_create_and_cache (cache, method,
2720 mb, csig, sig->param_count + 16);
2722 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2725 /* 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)); */
2731 * mono_marshal_get_ldfld_wrapper:
2732 * @type: the type of the field
2734 * This method generates a function which can be use to load a field with type
2735 * @type from an object. The generated function has the following signature:
2736 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
2739 mono_marshal_get_ldfld_wrapper (MonoType *type)
2741 MonoMethodSignature *sig, *csig;
2742 MonoMethodBuilder *mb;
2745 static GHashTable *ldfld_hash = NULL;
2747 int t, pos0, pos1 = 0;
2752 if (type->type == MONO_TYPE_SZARRAY) {
2753 klass = mono_defaults.array_class;
2754 } else if (type->type == MONO_TYPE_VALUETYPE) {
2755 klass = type->data.klass;
2756 if (klass->enumtype) {
2757 t = klass->enum_basetype->type;
2758 klass = mono_class_from_mono_type (klass->enum_basetype);
2760 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2761 t == MONO_TYPE_CLASS) {
2762 klass = mono_defaults.object_class;
2763 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2764 klass = mono_defaults.int_class;
2766 klass = mono_class_from_mono_type (type);
2769 klass = mono_defaults.int_class;
2772 EnterCriticalSection (&marshal_mutex);
2774 ldfld_hash = g_hash_table_new (NULL, NULL);
2775 res = g_hash_table_lookup (ldfld_hash, klass);
2776 LeaveCriticalSection (&marshal_mutex);
2780 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
2781 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
2784 mb->method->save_lmf = 1;
2786 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2787 sig->params [0] = &mono_defaults.object_class->byval_arg;
2788 sig->params [1] = &mono_defaults.int_class->byval_arg;
2789 sig->params [2] = &mono_defaults.int_class->byval_arg;
2790 sig->params [3] = &mono_defaults.int_class->byval_arg;
2791 sig->ret = &klass->byval_arg;
2793 mono_mb_emit_ldarg (mb, 0);
2794 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2796 mono_mb_emit_ldarg (mb, 0);
2797 mono_mb_emit_ldarg (mb, 1);
2798 mono_mb_emit_ldarg (mb, 2);
2800 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
2801 csig->params [0] = &mono_defaults.object_class->byval_arg;
2802 csig->params [1] = &mono_defaults.int_class->byval_arg;
2803 csig->params [2] = &mono_defaults.int_class->byval_arg;
2804 csig->ret = &klass->this_arg;
2807 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
2808 emit_thread_interrupt_checkpoint (mb);
2810 if (klass->valuetype) {
2811 mono_mb_emit_byte (mb, CEE_UNBOX);
2812 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2813 mono_mb_emit_byte (mb, CEE_BR);
2815 mono_mb_emit_i4 (mb, 0);
2817 mono_mb_emit_byte (mb, CEE_RET);
2821 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2823 mono_mb_emit_ldarg (mb, 0);
2824 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2825 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2826 mono_mb_emit_ldarg (mb, 3);
2827 mono_mb_emit_byte (mb, CEE_ADD);
2829 if (klass->valuetype)
2830 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2835 case MONO_TYPE_BOOLEAN:
2836 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2838 case MONO_TYPE_CHAR:
2841 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2845 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2849 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2852 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2855 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2857 case MONO_TYPE_ARRAY:
2859 case MONO_TYPE_FNPTR:
2860 case MONO_TYPE_SZARRAY:
2861 case MONO_TYPE_OBJECT:
2862 case MONO_TYPE_CLASS:
2863 case MONO_TYPE_STRING:
2866 mono_mb_emit_byte (mb, CEE_LDIND_I);
2868 case MONO_TYPE_VALUETYPE:
2869 g_assert (!klass->enumtype);
2870 mono_mb_emit_byte (mb, CEE_LDOBJ);
2871 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2874 g_warning ("type %x not implemented", type->type);
2875 g_assert_not_reached ();
2878 mono_mb_emit_byte (mb, CEE_RET);
2880 res = mono_mb_create_and_cache (ldfld_hash, klass,
2881 mb, sig, sig->param_count + 16);
2888 * mono_marshal_get_stfld_wrapper:
2889 * @type: the type of the field
2891 * This method generates a function which can be use to store a field with type
2892 * @type. The generated function has the following signature:
2893 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
2896 mono_marshal_get_stfld_wrapper (MonoType *type)
2898 MonoMethodSignature *sig, *csig;
2899 MonoMethodBuilder *mb;
2902 static GHashTable *stfld_hash = NULL;
2909 if (type->type == MONO_TYPE_SZARRAY) {
2910 klass = mono_defaults.array_class;
2911 } else if (type->type == MONO_TYPE_VALUETYPE) {
2912 klass = type->data.klass;
2913 if (klass->enumtype) {
2914 t = klass->enum_basetype->type;
2915 klass = mono_class_from_mono_type (klass->enum_basetype);
2917 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2918 t == MONO_TYPE_CLASS) {
2919 klass = mono_defaults.object_class;
2920 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2921 klass = mono_defaults.int_class;
2923 klass = mono_class_from_mono_type (type);
2926 klass = mono_defaults.int_class;
2929 EnterCriticalSection (&marshal_mutex);
2931 stfld_hash = g_hash_table_new (NULL, NULL);
2932 res = g_hash_table_lookup (stfld_hash, klass);
2933 LeaveCriticalSection (&marshal_mutex);
2937 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
2938 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
2941 mb->method->save_lmf = 1;
2943 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
2944 sig->params [0] = &mono_defaults.object_class->byval_arg;
2945 sig->params [1] = &mono_defaults.int_class->byval_arg;
2946 sig->params [2] = &mono_defaults.int_class->byval_arg;
2947 sig->params [3] = &mono_defaults.int_class->byval_arg;
2948 sig->params [4] = &klass->byval_arg;
2949 sig->ret = &mono_defaults.void_class->byval_arg;
2951 mono_mb_emit_ldarg (mb, 0);
2952 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2954 mono_mb_emit_ldarg (mb, 0);
2955 mono_mb_emit_ldarg (mb, 1);
2956 mono_mb_emit_ldarg (mb, 2);
2957 mono_mb_emit_ldarg (mb, 4);
2959 if (klass->valuetype) {
2960 mono_mb_emit_byte (mb, CEE_BOX);
2961 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2964 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2965 csig->params [0] = &mono_defaults.object_class->byval_arg;
2966 csig->params [1] = &mono_defaults.int_class->byval_arg;
2967 csig->params [2] = &mono_defaults.int_class->byval_arg;
2968 csig->params [3] = &klass->this_arg;
2969 csig->ret = &mono_defaults.void_class->byval_arg;
2972 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
2973 emit_thread_interrupt_checkpoint (mb);
2975 mono_mb_emit_byte (mb, CEE_RET);
2977 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2979 mono_mb_emit_ldarg (mb, 0);
2980 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2981 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2982 mono_mb_emit_ldarg (mb, 3);
2983 mono_mb_emit_byte (mb, CEE_ADD);
2984 mono_mb_emit_ldarg (mb, 4);
2989 case MONO_TYPE_BOOLEAN:
2990 mono_mb_emit_byte (mb, CEE_STIND_I1);
2992 case MONO_TYPE_CHAR:
2995 mono_mb_emit_byte (mb, CEE_STIND_I2);
2999 mono_mb_emit_byte (mb, CEE_STIND_I4);
3003 mono_mb_emit_byte (mb, CEE_STIND_I8);
3006 mono_mb_emit_byte (mb, CEE_STIND_R4);
3009 mono_mb_emit_byte (mb, CEE_STIND_R8);
3011 case MONO_TYPE_ARRAY:
3013 case MONO_TYPE_FNPTR:
3014 case MONO_TYPE_SZARRAY:
3015 case MONO_TYPE_OBJECT:
3016 case MONO_TYPE_CLASS:
3017 case MONO_TYPE_STRING:
3020 mono_mb_emit_byte (mb, CEE_STIND_I);
3022 case MONO_TYPE_VALUETYPE:
3023 g_assert (!klass->enumtype);
3024 mono_mb_emit_byte (mb, CEE_STOBJ);
3025 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3028 g_warning ("type %x not implemented", type->type);
3029 g_assert_not_reached ();
3032 mono_mb_emit_byte (mb, CEE_RET);
3034 res = mono_mb_create_and_cache (stfld_hash, klass,
3035 mb, sig, sig->param_count + 16);
3042 * generates IL code for the icall wrapper (the generated method
3043 * calls the unmanaged code in func)
3046 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3048 MonoMethodSignature *csig;
3049 MonoMethodBuilder *mb;
3053 g_assert (sig->pinvoke);
3055 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3057 mb->method->save_lmf = 1;
3059 /* we copy the signature, so that we can modify it */
3062 mono_mb_emit_byte (mb, CEE_LDARG_0);
3064 for (i = 0; i < sig->param_count; i++)
3065 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3067 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3068 emit_thread_interrupt_checkpoint (mb);
3069 mono_mb_emit_byte (mb, CEE_RET);
3071 csig = mono_metadata_signature_dup (sig);
3074 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3081 * mono_marshal_get_native_wrapper:
3082 * @method: The MonoMethod to wrap.
3084 * generates IL code for the pinvoke wrapper (the generated method
3085 * calls the unmanaged code in method->addr)
3088 mono_marshal_get_native_wrapper (MonoMethod *method)
3090 MonoMethodSignature *sig, *csig;
3091 MonoMethodPInvoke *piinfo;
3092 MonoMethodBuilder *mb;
3093 MonoMarshalSpec **mspecs;
3097 gboolean pinvoke = FALSE;
3098 int i, pos, argnum, *tmp_locals;
3100 const char *exc_class = "MissingMethodException";
3101 const char *exc_arg = NULL;
3103 g_assert (method != NULL);
3104 g_assert (method->signature->pinvoke);
3106 cache = method->klass->image->native_wrapper_cache;
3107 if ((res = mono_marshal_find_in_cache (cache, method)))
3110 sig = method->signature;
3112 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3113 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3116 if (!method->addr) {
3118 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
3120 method->addr = mono_lookup_internal_call (method);
3123 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3125 mb->method->save_lmf = 1;
3127 piinfo = (MonoMethodPInvoke *)method;
3129 if (!method->addr) {
3130 mono_mb_emit_exception (mb, exc_class, exc_arg);
3131 csig = mono_metadata_signature_dup (sig);
3133 res = mono_mb_create_and_cache (cache, method,
3134 mb, csig, csig->param_count + 16);
3139 /* internal calls: we simply push all arguments and call the method (no conversions) */
3140 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3142 /* hack - string constructors returns a value */
3143 if (method->string_ctor) {
3144 csig = mono_metadata_signature_dup (sig);
3145 csig->ret = &mono_defaults.string_class->byval_arg;
3150 mono_mb_emit_byte (mb, CEE_LDARG_0);
3152 for (i = 0; i < sig->param_count; i++)
3153 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3155 g_assert (method->addr);
3156 mono_mb_emit_native_call (mb, csig, method->addr);
3157 emit_thread_interrupt_checkpoint (mb);
3158 mono_mb_emit_byte (mb, CEE_RET);
3160 csig = mono_metadata_signature_dup (csig);
3162 res = mono_mb_create_and_cache (cache, method,
3163 mb, csig, csig->param_count + 16);
3170 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
3171 mono_method_get_marshal_info (method, mspecs);
3173 /* pinvoke: we need to convert the arguments if necessary */
3175 /* we copy the signature, so that we can set pinvoke to 0 */
3176 csig = mono_metadata_signature_dup (sig);
3179 /* we allocate local for use with emit_struct_conv() */
3180 /* allocate local 0 (pointer) src_ptr */
3181 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3182 /* allocate local 1 (pointer) dst_ptr */
3183 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3184 /* allocate local 2 (boolean) delete_old */
3185 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3187 /* delete_old = FALSE */
3188 mono_mb_emit_icon (mb, 0);
3189 mono_mb_emit_byte (mb, CEE_STLOC_2);
3191 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3192 /* allocate local 3 to store the return value */
3193 mono_mb_add_local (mb, sig->ret);
3196 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3197 /* Return type custom marshaling */
3199 * Since we can't determine the return type of the unmanaged function,
3200 * we assume it returns a pointer, and pass that pointer to
3201 * MarshalNativeToManaged.
3203 csig->ret = &mono_defaults.int_class->byval_arg;
3206 /* we first do all conversions */
3207 tmp_locals = alloca (sizeof (int) * sig->param_count);
3209 for (i = 0; i < sig->param_count; i ++) {
3210 MonoType *t = sig->params [i];
3211 MonoMarshalSpec *spec = mspecs [i + 1];
3213 argnum = i + sig->hasthis;
3216 /* Ensure that we have marshalling info for this param */
3217 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3219 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3222 MonoMethod *marshal_managed_to_native;
3223 MonoMethod *get_instance;
3225 /* FIXME: Call CleanUpNativeData after the call */
3227 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3228 g_assert (mtype != NULL);
3229 mklass = mono_class_from_mono_type (mtype);
3230 g_assert (mklass != NULL);
3232 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3233 g_assert (marshal_managed_to_native);
3234 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3235 g_assert (get_instance);
3238 case MONO_TYPE_CLASS:
3239 case MONO_TYPE_OBJECT:
3240 case MONO_TYPE_STRING:
3241 case MONO_TYPE_ARRAY:
3242 case MONO_TYPE_SZARRAY:
3243 case MONO_TYPE_VALUETYPE:
3247 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3249 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3251 mono_mb_emit_byte (mb, CEE_CALL);
3252 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3254 mono_mb_emit_ldarg (mb, argnum);
3256 if (t->type == MONO_TYPE_VALUETYPE) {
3258 * Since we can't determine the type of the argument, we
3259 * will assume the unmanaged function takes a pointer.
3261 csig->params [i] = &mono_defaults.int_class->byval_arg;
3263 mono_mb_emit_byte (mb, CEE_BOX);
3264 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3267 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3268 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3270 mono_mb_emit_stloc (mb, tmp_locals [i]);
3274 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3275 g_assert_not_reached ();
3281 if (spec && spec->native == MONO_NATIVE_ASANY) {
3282 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3284 g_assert (t->type == MONO_TYPE_OBJECT);
3285 g_assert (!t->byref);
3287 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3288 mono_mb_emit_ldarg (mb, argnum);
3289 mono_mb_emit_icon (mb, encoding);
3290 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3291 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
3292 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ASANY);
3293 mono_mb_emit_stloc (mb, tmp_locals [i]);
3298 case MONO_TYPE_VALUETYPE:
3299 klass = t->data.klass;
3301 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3302 klass->blittable || klass->enumtype)
3305 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3307 /* store the address of the source into local variable 0 */
3309 mono_mb_emit_ldarg (mb, argnum);
3311 mono_mb_emit_ldarg_addr (mb, argnum);
3313 mono_mb_emit_byte (mb, CEE_STLOC_0);
3315 /* allocate space for the native struct and
3316 * store the address into local variable 1 (dest) */
3317 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3318 mono_mb_emit_byte (mb, CEE_PREFIX1);
3319 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3320 mono_mb_emit_stloc (mb, tmp_locals [i]);
3323 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3324 mono_mb_emit_byte (mb, CEE_BRFALSE);
3326 mono_mb_emit_i4 (mb, 0);
3330 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3331 mono_mb_emit_byte (mb, CEE_STLOC_1);
3333 /* emit valuetype conversion code */
3334 emit_struct_conv (mb, klass, FALSE);
3337 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3339 case MONO_TYPE_STRING: {
3340 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3342 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3343 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3346 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3349 mono_mb_emit_ldarg (mb, argnum);
3350 mono_mb_emit_byte (mb, CEE_LDIND_I);
3352 mono_mb_emit_ldarg (mb, argnum);
3355 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3356 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3359 case MONO_NATIVE_LPWSTR:
3360 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPWSTR);
3362 case MONO_NATIVE_LPSTR:
3363 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
3365 case MONO_NATIVE_LPTSTR:
3366 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPTSTR);
3369 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3370 MonoException *exc = mono_get_exception_not_implemented (msg);
3373 mono_raise_exception (exc);
3377 mono_mb_emit_stloc (mb, tmp_locals [i]);
3380 case MONO_TYPE_CLASS:
3381 case MONO_TYPE_OBJECT:
3382 klass = t->data.klass;
3384 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3385 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3387 if (klass->delegate) {
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);
3392 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
3393 mono_mb_emit_stloc (mb, tmp_locals [i]);
3394 } else if (klass == mono_defaults.stringbuilder_class) {
3395 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3397 g_assert (!t->byref);
3398 mono_mb_emit_ldarg (mb, argnum);
3399 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3400 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3403 case MONO_NATIVE_LPWSTR:
3404 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPWSTR);
3406 case MONO_NATIVE_LPSTR:
3407 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPSTR);
3409 case MONO_NATIVE_LPTSTR:
3410 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPTSTR);
3413 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3414 MonoException *exc = mono_get_exception_not_implemented (msg);
3417 mono_raise_exception (exc);
3421 mono_mb_emit_stloc (mb, tmp_locals [i]);
3423 mono_mb_emit_byte (mb, CEE_LDNULL);
3424 mono_mb_emit_stloc (mb, tmp_locals [i]);
3427 /* we dont need any conversions for out parameters */
3428 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3431 mono_mb_emit_ldarg (mb, argnum);
3432 mono_mb_emit_byte (mb, CEE_LDIND_I);
3435 mono_mb_emit_ldarg (mb, argnum);
3436 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3437 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3440 /* store the address of the source into local variable 0 */
3441 mono_mb_emit_byte (mb, CEE_STLOC_0);
3442 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3443 mono_mb_emit_byte (mb, CEE_BRFALSE);
3445 mono_mb_emit_i4 (mb, 0);
3447 /* allocate space for the native struct and store the address */
3448 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3449 mono_mb_emit_byte (mb, CEE_PREFIX1);
3450 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3451 mono_mb_emit_stloc (mb, tmp_locals [i]);
3453 /* set the src_ptr */
3454 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3455 mono_mb_emit_icon (mb, sizeof (MonoObject));
3456 mono_mb_emit_byte (mb, CEE_ADD);
3457 mono_mb_emit_byte (mb, CEE_STLOC_0);
3460 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3461 mono_mb_emit_byte (mb, CEE_STLOC_1);
3463 /* emit valuetype conversion code */
3464 emit_struct_conv (mb, klass, FALSE);
3466 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3470 case MONO_TYPE_ARRAY:
3471 case MONO_TYPE_SZARRAY:
3475 klass = mono_class_from_mono_type (t);
3477 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3478 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3480 if (klass->element_class == mono_defaults.string_class) {
3481 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3483 mono_mb_emit_ldarg (mb, argnum);
3484 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3485 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3488 case MONO_NATIVE_LPWSTR:
3489 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRWLPARRAY);
3491 case MONO_NATIVE_LPSTR:
3492 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY);
3495 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3496 MonoException *exc = mono_get_exception_not_implemented (msg);
3499 mono_raise_exception (exc);
3502 mono_mb_emit_stloc (mb, tmp_locals [i]);
3504 else if (klass->element_class->blittable) {
3505 mono_mb_emit_ldarg (mb, argnum);
3506 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3507 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3509 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ARRAY_LPARRAY);
3510 mono_mb_emit_stloc (mb, tmp_locals [i]);
3514 guint32 label1, label2, label3;
3515 int index_var, dest_ptr;
3517 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3520 mono_mb_emit_ldarg (mb, argnum);
3521 mono_mb_emit_stloc (mb, tmp_locals [i]);
3522 mono_mb_emit_ldarg (mb, argnum);
3523 mono_mb_emit_byte (mb, CEE_BRFALSE);
3525 mono_mb_emit_i4 (mb, 0);
3527 /* allocate space for the native struct and store the address */
3528 eklass = klass->element_class;
3529 mono_mb_emit_icon (mb, mono_class_native_size (eklass, NULL));
3530 mono_mb_emit_ldarg (mb, argnum);
3531 mono_mb_emit_byte (mb, CEE_LDLEN);
3532 mono_mb_emit_byte (mb, CEE_MUL);
3533 mono_mb_emit_byte (mb, CEE_PREFIX1);
3534 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3535 mono_mb_emit_stloc (mb, tmp_locals [i]);
3537 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3538 mono_mb_emit_stloc (mb, dest_ptr);
3540 /* Emit marshalling loop */
3541 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3542 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3543 mono_mb_emit_stloc (mb, index_var);
3545 mono_mb_emit_ldloc (mb, index_var);
3546 mono_mb_emit_ldarg (mb, argnum);
3547 mono_mb_emit_byte (mb, CEE_LDLEN);
3548 mono_mb_emit_byte (mb, CEE_BGE);
3550 mono_mb_emit_i4 (mb, 0);
3552 /* Emit marshalling code */
3554 /* set the src_ptr */
3555 mono_mb_emit_ldarg (mb, argnum);
3556 mono_mb_emit_ldloc (mb, index_var);
3557 mono_mb_emit_byte (mb, CEE_LDELEMA);
3558 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3559 mono_mb_emit_byte (mb, CEE_STLOC_0);
3562 mono_mb_emit_ldloc (mb, dest_ptr);
3563 mono_mb_emit_byte (mb, CEE_STLOC_1);
3565 /* emit valuetype conversion code */
3566 emit_struct_conv (mb, eklass, FALSE);
3568 mono_mb_emit_add_to_local (mb, index_var, 1);
3569 mono_mb_emit_add_to_local (mb, dest_ptr, mono_class_native_size (eklass, NULL));
3571 mono_mb_emit_byte (mb, CEE_BR);
3572 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3574 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3575 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3579 case MONO_TYPE_BOOLEAN: {
3580 MonoType *local_type;
3581 int variant_bool = 0;
3585 local_type = &mono_defaults.int32_class->byval_arg;
3587 switch (spec->native) {
3588 case MONO_NATIVE_I1:
3589 local_type = &mono_defaults.byte_class->byval_arg;
3591 case MONO_NATIVE_VARIANTBOOL:
3592 local_type = &mono_defaults.int16_class->byval_arg;
3596 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3600 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3601 tmp_locals [i] = mono_mb_add_local (mb, local_type);
3602 mono_mb_emit_ldarg (mb, argnum);
3603 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3605 mono_mb_emit_byte (mb, CEE_NEG);
3606 mono_mb_emit_stloc (mb, tmp_locals [i]);
3612 /* push all arguments */
3615 mono_mb_emit_byte (mb, CEE_LDARG_0);
3617 for (i = 0; i < sig->param_count; i++) {
3618 MonoType *t = sig->params [i];
3619 MonoMarshalSpec *spec = mspecs [i + 1];
3621 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3622 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3625 if (spec && spec->native == MONO_NATIVE_ASANY) {
3626 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3629 argnum = i + sig->hasthis;
3632 case MONO_TYPE_BOOLEAN:
3634 g_assert (tmp_locals [i]);
3635 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3637 mono_mb_emit_ldarg (mb, argnum);
3652 mono_mb_emit_ldarg (mb, argnum);
3654 case MONO_TYPE_VALUETYPE:
3655 klass = sig->params [i]->data.klass;
3656 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3657 klass->blittable || klass->enumtype) {
3658 mono_mb_emit_ldarg (mb, argnum);
3661 g_assert (tmp_locals [i]);
3662 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3664 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3665 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3666 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3669 case MONO_TYPE_STRING:
3670 case MONO_TYPE_CLASS:
3671 case MONO_TYPE_OBJECT:
3672 g_assert (tmp_locals [i]);
3674 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3676 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3678 case MONO_TYPE_CHAR:
3679 /* fixme: dont know how to marshal that. We cant simply
3680 * convert it to a one byte UTF8 character, because an
3681 * unicode character may need more that one byte in UTF8 */
3682 mono_mb_emit_ldarg (mb, argnum);
3684 case MONO_TYPE_ARRAY:
3685 case MONO_TYPE_SZARRAY:
3687 mono_mb_emit_ldarg (mb, argnum);
3689 g_assert (tmp_locals [i]);
3690 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3693 case MONO_TYPE_TYPEDBYREF:
3694 case MONO_TYPE_FNPTR:
3696 g_warning ("type 0x%02x unknown", t->type);
3697 g_assert_not_reached ();
3702 /* call the native method */
3703 mono_mb_emit_native_call (mb, csig, method->addr);
3705 /* Set LastError if needed */
3706 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
3707 MonoMethodSignature *lasterr_sig;
3709 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3710 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
3711 lasterr_sig->pinvoke = 1;
3713 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
3716 /* Ensure that we have marshalling info for the return */
3717 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3719 /* convert the result */
3720 if (!sig->ret->byref) {
3721 MonoMarshalSpec *spec = mspecs [0];
3722 type = sig->ret->type;
3724 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3727 MonoMethod *marshal_native_to_managed;
3728 MonoMethod *get_instance;
3730 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3731 g_assert (mtype != NULL);
3732 mklass = mono_class_from_mono_type (mtype);
3733 g_assert (mklass != NULL);
3735 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3736 g_assert (marshal_native_to_managed);
3737 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3738 g_assert (get_instance);
3741 case MONO_TYPE_CLASS:
3742 case MONO_TYPE_OBJECT:
3743 case MONO_TYPE_STRING:
3744 case MONO_TYPE_ARRAY:
3745 case MONO_TYPE_SZARRAY:
3746 case MONO_TYPE_VALUETYPE:
3747 if (type == MONO_TYPE_VALUETYPE) {
3748 /* local 3 can't hold a pointer */
3749 mono_mb_emit_byte (mb, CEE_STLOC_0);
3752 mono_mb_emit_byte (mb, CEE_STLOC_3);
3754 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3756 mono_mb_emit_byte (mb, CEE_CALL);
3757 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3759 if (type == MONO_TYPE_VALUETYPE)
3760 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3762 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3764 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3765 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3767 if (type == MONO_TYPE_VALUETYPE) {
3768 mono_mb_emit_byte (mb, CEE_UNBOX);
3769 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3771 mono_mb_emit_byte (mb, CEE_STLOC_3);
3774 g_warning ("custom marshalling of type %x is currently not supported", type);
3775 g_assert_not_reached ();
3782 case MONO_TYPE_VOID:
3797 /* no conversions necessary */
3798 mono_mb_emit_byte (mb, CEE_STLOC_3);
3800 case MONO_TYPE_BOOLEAN:
3801 /* maybe we need to make sure that it fits within 8 bits */
3802 mono_mb_emit_byte (mb, CEE_STLOC_3);
3804 case MONO_TYPE_VALUETYPE:
3805 klass = sig->ret->data.klass;
3806 if (klass->enumtype) {
3807 type = sig->ret->data.klass->enum_basetype->type;
3811 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3813 mono_mb_emit_byte (mb, CEE_STLOC_3);
3816 /* load pointer to returned value type */
3817 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3818 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3819 /* store the address of the source into local variable 0 */
3820 mono_mb_emit_byte (mb, CEE_STLOC_0);
3822 mono_mb_emit_ldloc_addr (mb, 3);
3823 mono_mb_emit_byte (mb, CEE_STLOC_1);
3825 /* emit valuetype conversion code */
3826 emit_struct_conv (mb, sig->ret->data.klass, TRUE);
3828 case MONO_TYPE_STRING:
3829 mono_mb_emit_byte (mb, CEE_STLOC_0);
3830 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3832 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3833 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3835 switch (spec->native) {
3836 case MONO_NATIVE_LPWSTR:
3837 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
3840 g_warning ("marshalling conversion not implemented");
3841 g_assert_not_reached ();
3844 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3846 mono_mb_emit_byte (mb, CEE_STLOC_3);
3848 /* free the string */
3849 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3850 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3851 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3853 case MONO_TYPE_CLASS:
3854 case MONO_TYPE_OBJECT:
3855 klass = sig->ret->data.klass;
3858 mono_mb_emit_byte (mb, CEE_STLOC_0);
3860 mono_mb_emit_byte (mb, CEE_LDNULL);
3861 mono_mb_emit_byte (mb, CEE_STLOC_3);
3864 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3865 mono_mb_emit_byte (mb, CEE_BRFALSE);
3867 mono_mb_emit_i4 (mb, 0);
3869 /* allocate result object */
3871 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3872 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3873 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3874 mono_mb_emit_byte (mb, CEE_STLOC_3);
3878 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3879 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3880 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3881 mono_mb_emit_icon (mb, sizeof (MonoObject));
3882 mono_mb_emit_byte (mb, CEE_ADD);
3883 mono_mb_emit_byte (mb, CEE_STLOC_1);
3885 /* emit conversion code */
3886 emit_struct_conv (mb, klass, TRUE);
3888 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3890 case MONO_TYPE_ARRAY:
3891 case MONO_TYPE_SZARRAY:
3892 /* fixme: we need conversions here */
3893 mono_mb_emit_byte (mb, CEE_STLOC_3);
3895 case MONO_TYPE_CHAR:
3896 /* fixme: we need conversions here */
3897 mono_mb_emit_byte (mb, CEE_STLOC_3);
3899 case MONO_TYPE_TYPEDBYREF:
3900 case MONO_TYPE_FNPTR:
3902 g_warning ("return type 0x%02x unknown", sig->ret->type);
3903 g_assert_not_reached ();
3907 mono_mb_emit_byte (mb, CEE_STLOC_3);
3911 * Need to call this after converting the result since MONO_VTADDR needs
3912 * to be adjacent to the call instruction.
3914 emit_thread_interrupt_checkpoint (mb);
3916 /* we need to convert byref arguments back and free string arrays */
3917 for (i = 0; i < sig->param_count; i++) {
3918 MonoType *t = sig->params [i];
3919 MonoMarshalSpec *spec = mspecs [i + 1];
3921 argnum = i + sig->hasthis;
3923 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3926 MonoMethod *get_instance;
3927 MonoMethod *cleanup_native;
3929 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3930 g_assert (mtype != NULL);
3931 mklass = mono_class_from_mono_type (mtype);
3932 g_assert (mklass != NULL);
3934 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3935 g_assert (get_instance);
3936 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3937 g_assert (get_instance);
3940 case MONO_TYPE_CLASS:
3941 case MONO_TYPE_OBJECT:
3942 case MONO_TYPE_STRING:
3943 case MONO_TYPE_ARRAY:
3944 case MONO_TYPE_SZARRAY:
3945 case MONO_TYPE_VALUETYPE:
3946 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3948 mono_mb_emit_byte (mb, CEE_CALL);
3949 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3951 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3953 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3954 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3959 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3960 g_assert_not_reached ();
3966 if (spec && spec->native == MONO_NATIVE_ASANY) {
3967 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3969 mono_mb_emit_ldarg (mb, argnum);
3970 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3971 mono_mb_emit_icon (mb, encoding);
3972 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3973 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
3974 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ASANY);
3979 case MONO_TYPE_STRING:
3980 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3981 mono_mb_emit_ldarg (mb, argnum);
3982 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3983 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3984 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3985 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3986 mono_mb_emit_byte (mb, CEE_STIND_I);
3988 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3989 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3990 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3993 case MONO_TYPE_CLASS:
3994 case MONO_TYPE_OBJECT:
3995 if (t->data.klass == mono_defaults.stringbuilder_class) {
3996 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3997 gboolean need_free = TRUE;
3999 g_assert (!t->byref);
4000 mono_mb_emit_ldarg (mb, argnum);
4001 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4002 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4003 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4006 case MONO_NATIVE_LPWSTR:
4007 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_SB);
4009 * mono_string_builder_to_utf16 does not allocate a
4010 * new buffer, so no need to free it.
4014 case MONO_NATIVE_LPSTR:
4015 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_SB);
4017 case MONO_NATIVE_LPTSTR:
4018 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPTSTR_SB);
4021 g_assert_not_reached ();
4025 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4026 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4027 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4032 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4035 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4036 /* allocate a new object new object */
4037 mono_mb_emit_ldarg (mb, argnum);
4038 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4039 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4040 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4041 mono_mb_emit_byte (mb, CEE_STIND_I);
4044 /* dst = *argument */
4045 mono_mb_emit_ldarg (mb, argnum);
4048 mono_mb_emit_byte (mb, CEE_LDIND_I);
4050 mono_mb_emit_byte (mb, CEE_STLOC_1);
4052 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4053 mono_mb_emit_byte (mb, CEE_BRFALSE);
4055 mono_mb_emit_i4 (mb, 0);
4057 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4058 mono_mb_emit_icon (mb, sizeof (MonoObject));
4059 mono_mb_emit_byte (mb, CEE_ADD);
4060 mono_mb_emit_byte (mb, CEE_STLOC_1);
4062 /* src = tmp_locals [i] */
4063 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4064 mono_mb_emit_byte (mb, CEE_STLOC_0);
4066 /* emit valuetype conversion code */
4067 emit_struct_conv (mb, klass, TRUE);
4069 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4071 case MONO_TYPE_VALUETYPE:
4075 klass = t->data.klass;
4076 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4077 klass->blittable || klass->enumtype)
4080 /* dst = argument */
4081 mono_mb_emit_ldarg (mb, argnum);
4082 mono_mb_emit_byte (mb, CEE_STLOC_1);
4084 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4085 mono_mb_emit_byte (mb, CEE_BRFALSE);
4087 mono_mb_emit_i4 (mb, 0);
4089 /* src = tmp_locals [i] */
4090 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4091 mono_mb_emit_byte (mb, CEE_STLOC_0);
4093 /* emit valuetype conversion code */
4094 emit_struct_conv (mb, klass, TRUE);
4096 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4098 case MONO_TYPE_SZARRAY:
4102 klass = mono_class_from_mono_type (t);
4104 if (klass->element_class == mono_defaults.string_class) {
4105 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4106 g_assert (tmp_locals [i]);
4108 mono_mb_emit_ldarg (mb, argnum);
4109 mono_mb_emit_byte (mb, CEE_BRFALSE);
4111 mono_mb_emit_i4 (mb, 0);
4113 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4116 case MONO_NATIVE_LPWSTR:
4118 * The array elements point to the managed string data so
4119 * they don't need to be freed.
4121 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4122 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4125 mono_mb_emit_ldarg (mb, argnum);
4126 mono_mb_emit_byte (mb, CEE_LDLEN);
4127 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4128 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4129 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ARRAY);
4133 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4136 /* Character arrays are implicitly marshalled as [Out] */
4137 if ((klass->element_class == mono_defaults.char_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4138 /* FIXME: Optimize blittable case */
4140 guint32 label1, label2, label3;
4141 int index_var, src_ptr;
4143 eklass = klass->element_class;
4144 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4147 mono_mb_emit_ldarg (mb, argnum);
4148 mono_mb_emit_byte (mb, CEE_BRFALSE);
4150 mono_mb_emit_i4 (mb, 0);
4152 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4153 mono_mb_emit_stloc (mb, src_ptr);
4155 /* Emit marshalling loop */
4156 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4157 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4158 mono_mb_emit_stloc (mb, index_var);
4160 mono_mb_emit_ldloc (mb, index_var);
4161 mono_mb_emit_ldarg (mb, argnum);
4162 mono_mb_emit_byte (mb, CEE_LDLEN);
4163 mono_mb_emit_byte (mb, CEE_BGE);
4165 mono_mb_emit_i4 (mb, 0);
4167 /* Emit marshalling code */
4169 /* set the src_ptr */
4170 mono_mb_emit_ldloc (mb, src_ptr);
4171 mono_mb_emit_byte (mb, CEE_STLOC_0);
4174 mono_mb_emit_ldarg (mb, argnum);
4175 mono_mb_emit_ldloc (mb, index_var);
4176 mono_mb_emit_byte (mb, CEE_LDELEMA);
4177 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4178 mono_mb_emit_byte (mb, CEE_STLOC_1);
4180 /* emit valuetype conversion code */
4181 emit_struct_conv (mb, eklass, TRUE);
4183 mono_mb_emit_add_to_local (mb, index_var, 1);
4184 mono_mb_emit_add_to_local (mb, src_ptr, mono_class_native_size (eklass, NULL));
4186 mono_mb_emit_byte (mb, CEE_BR);
4187 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4189 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4190 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4193 case MONO_TYPE_BOOLEAN:
4196 mono_mb_emit_ldarg (mb, argnum);
4197 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4198 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4199 mono_mb_emit_byte (mb, CEE_NEG);
4200 mono_mb_emit_byte (mb, CEE_STIND_I1);
4204 if (!MONO_TYPE_IS_VOID(sig->ret))
4205 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4207 mono_mb_emit_byte (mb, CEE_RET);
4209 csig = mono_metadata_signature_dup (sig);
4211 res = mono_mb_create_and_cache (cache, method,
4212 mb, csig, csig->param_count + 16);
4215 for (i = sig->param_count; i >= 0; i--)
4216 g_free (mspecs [i]);
4219 /* 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)); */
4225 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4227 static MonoReflectionType *
4228 type_from_handle (MonoType *handle)
4230 MonoDomain *domain = mono_domain_get ();
4231 MonoClass *klass = mono_class_from_mono_type (handle);
4233 MONO_ARCH_SAVE_REGS;
4235 mono_class_init (klass);
4236 return mono_type_get_object (domain, handle);
4240 * mono_marshal_get_isinst:
4241 * @klass: the type of the field
4243 * This method generates a function which can be used to check if an object is
4244 * an instance of the given type, icluding the case where the object is a proxy.
4245 * The generated function has the following signature:
4246 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4249 mono_marshal_get_isinst (MonoClass *klass)
4251 static MonoMethodSignature *isint_sig = NULL;
4252 static GHashTable *isinst_hash = NULL;
4254 int pos_was_ok, pos_failed, pos_end, pos_end2;
4256 MonoMethodBuilder *mb;
4258 EnterCriticalSection (&marshal_mutex);
4260 isinst_hash = g_hash_table_new (NULL, NULL);
4262 res = g_hash_table_lookup (isinst_hash, klass);
4263 LeaveCriticalSection (&marshal_mutex);
4268 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4269 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4270 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4271 isint_sig->pinvoke = 0;
4274 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4275 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4278 mb->method->save_lmf = 1;
4280 /* check if the object is a proxy that needs special cast */
4281 mono_mb_emit_ldarg (mb, 0);
4282 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4283 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4284 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4286 /* The result of MONO_ISINST can be:
4287 0) the type check succeeded
4288 1) the type check did not succeed
4289 2) a CanCastTo call is needed */
4291 mono_mb_emit_byte (mb, CEE_DUP);
4292 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4294 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4295 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4297 /* get the real proxy from the transparent proxy*/
4299 mono_mb_emit_ldarg (mb, 0);
4300 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4301 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4305 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4306 mono_mb_emit_byte (mb, CEE_LDNULL);
4307 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4311 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4312 mono_mb_emit_byte (mb, CEE_POP);
4313 mono_mb_emit_ldarg (mb, 0);
4317 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4318 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4319 mono_mb_emit_byte (mb, CEE_RET);
4321 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4328 * mono_marshal_get_castclass:
4329 * @klass: the type of the field
4331 * This method generates a function which can be used to cast an object to
4332 * an instance of the given type, icluding the case where the object is a proxy.
4333 * The generated function has the following signature:
4334 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4337 mono_marshal_get_castclass (MonoClass *klass)
4339 static MonoMethodSignature *castclass_sig = NULL;
4340 static GHashTable *castclass_hash = NULL;
4342 int pos_was_ok, pos_was_ok2;
4344 MonoMethodBuilder *mb;
4346 EnterCriticalSection (&marshal_mutex);
4347 if (!castclass_hash)
4348 castclass_hash = g_hash_table_new (NULL, NULL);
4350 res = g_hash_table_lookup (castclass_hash, klass);
4351 LeaveCriticalSection (&marshal_mutex);
4355 if (!castclass_sig) {
4356 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4357 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4358 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4359 castclass_sig->pinvoke = 0;
4362 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4363 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4366 mb->method->save_lmf = 1;
4368 /* check if the object is a proxy that needs special cast */
4369 mono_mb_emit_ldarg (mb, 0);
4370 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4371 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4372 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4374 /* The result of MONO_ISINST can be:
4375 0) the cast is valid
4376 1) cast of unknown proxy type
4377 or an exception if the cast is is invalid
4380 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4382 /* get the real proxy from the transparent proxy*/
4384 mono_mb_emit_ldarg (mb, 0);
4385 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4386 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4389 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4392 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4393 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4394 mono_mb_emit_ldarg (mb, 0);
4397 mono_mb_emit_byte (mb, CEE_RET);
4399 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4406 mono_marshal_get_proxy_cancast (MonoClass *klass)
4408 static MonoMethodSignature *from_handle_sig = NULL;
4409 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4410 static MonoMethodSignature *isint_sig = NULL;
4411 static GHashTable *proxy_isinst_hash = NULL;
4413 int pos_failed, pos_end;
4415 MonoMethod *can_cast_to;
4416 MonoMethodDesc *desc;
4417 MonoMethodBuilder *mb;
4419 EnterCriticalSection (&marshal_mutex);
4420 if (!proxy_isinst_hash)
4421 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4423 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4424 LeaveCriticalSection (&marshal_mutex);
4429 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4430 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4431 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4432 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4433 upgrade_proxy_sig->pinvoke = 1;
4435 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4436 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4437 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4439 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4440 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4441 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4442 isint_sig->pinvoke = 0;
4445 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4446 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4449 mb->method->save_lmf = 1;
4451 /* get the real proxy from the transparent proxy*/
4452 mono_mb_emit_ldarg (mb, 0);
4453 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4454 mono_mb_emit_byte (mb, CEE_LDIND_I);
4456 /* get the refletion type from the type handle */
4457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4458 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4459 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4460 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4462 mono_mb_emit_ldarg (mb, 0);
4464 /* make the call to CanCastTo (type, ob) */
4465 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4466 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4467 g_assert (can_cast_to);
4468 mono_method_desc_free (desc);
4469 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4470 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4473 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4475 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4476 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4477 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4478 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4479 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4480 mono_mb_emit_ldarg (mb, 0);
4482 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4483 emit_thread_interrupt_checkpoint (mb);
4485 mono_mb_emit_ldarg (mb, 0);
4486 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4490 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4491 mono_mb_emit_byte (mb, CEE_LDNULL);
4495 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4496 mono_mb_emit_byte (mb, CEE_RET);
4498 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4505 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4508 klass = mono_class_from_mono_type (rtype->type);
4509 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4510 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4514 * mono_marshal_get_struct_to_ptr:
4517 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4520 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4522 MonoMethodBuilder *mb;
4523 static MonoMethod *stoptr = NULL;
4526 g_assert (klass != NULL);
4528 if (klass->str_to_ptr)
4529 return klass->str_to_ptr;
4532 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4535 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4537 if (klass->blittable) {
4538 mono_mb_emit_byte (mb, CEE_LDARG_1);
4539 mono_mb_emit_byte (mb, CEE_LDARG_0);
4540 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4541 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4542 mono_mb_emit_byte (mb, CEE_PREFIX1);
4543 mono_mb_emit_byte (mb, CEE_CPBLK);
4546 /* allocate local 0 (pointer) src_ptr */
4547 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4548 /* allocate local 1 (pointer) dst_ptr */
4549 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4550 /* allocate local 2 (boolean) delete_old */
4551 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4552 mono_mb_emit_byte (mb, CEE_LDARG_2);
4553 mono_mb_emit_byte (mb, CEE_STLOC_2);
4555 /* initialize src_ptr to point to the start of object data */
4556 mono_mb_emit_byte (mb, CEE_LDARG_0);
4557 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4558 mono_mb_emit_byte (mb, CEE_STLOC_0);
4560 /* initialize dst_ptr */
4561 mono_mb_emit_byte (mb, CEE_LDARG_1);
4562 mono_mb_emit_byte (mb, CEE_STLOC_1);
4564 emit_struct_conv (mb, klass, FALSE);
4567 mono_mb_emit_byte (mb, CEE_RET);
4569 res = mono_mb_create_method (mb, stoptr->signature, 0);
4572 klass->str_to_ptr = res;
4577 * mono_marshal_get_ptr_to_struct:
4580 * generates IL code for PtrToStructure (IntPtr src, object structure)
4583 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4585 MonoMethodBuilder *mb;
4586 static MonoMethod *ptostr = NULL;
4589 g_assert (klass != NULL);
4591 if (klass->ptr_to_str)
4592 return klass->ptr_to_str;
4595 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4598 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4600 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4601 mono_mb_emit_byte (mb, CEE_LDARG_1);
4602 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4603 mono_mb_emit_byte (mb, CEE_LDARG_0);
4604 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4605 mono_mb_emit_byte (mb, CEE_PREFIX1);
4606 mono_mb_emit_byte (mb, CEE_CPBLK);
4609 /* allocate local 0 (pointer) src_ptr */
4610 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4611 /* allocate local 1 (pointer) dst_ptr */
4612 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4614 /* initialize src_ptr to point to the start of object data */
4615 mono_mb_emit_byte (mb, CEE_LDARG_0);
4616 mono_mb_emit_byte (mb, CEE_STLOC_0);
4618 /* initialize dst_ptr */
4619 mono_mb_emit_byte (mb, CEE_LDARG_1);
4620 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4621 mono_mb_emit_byte (mb, CEE_STLOC_1);
4623 emit_struct_conv (mb, klass, TRUE);
4626 mono_mb_emit_byte (mb, CEE_RET);
4628 res = mono_mb_create_method (mb, ptostr->signature, 0);
4631 klass->ptr_to_str = res;
4636 * generates IL code for the synchronized wrapper: the generated method
4637 * calls METHOD while locking 'this' or the parent type.
4640 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
4642 static MonoMethodSignature *from_handle_sig = NULL;
4643 static MonoMethod *enter_method, *exit_method;
4644 MonoMethodSignature *sig;
4645 MonoExceptionClause *clause;
4646 MonoMethodHeader *header;
4647 MonoMethodBuilder *mb;
4650 int i, pos, this_local, ret_local;
4654 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
4657 cache = method->klass->image->synchronized_cache;
4658 if ((res = mono_marshal_find_in_cache (cache, method)))
4661 sig = method->signature;
4663 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
4666 if (!MONO_TYPE_IS_VOID (sig->ret))
4667 ret_local = mono_mb_add_local (mb, sig->ret);
4670 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4672 clause = g_new0 (MonoExceptionClause, 1);
4673 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
4675 if (!enter_method) {
4676 MonoMethodDesc *desc;
4678 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
4679 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4680 g_assert (enter_method);
4681 mono_method_desc_free (desc);
4682 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
4683 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4684 g_assert (exit_method);
4685 mono_method_desc_free (desc);
4688 * GetTypeFromHandle isn't called as a managed method because it has
4689 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
4690 * transformed into something else by the JIT.
4692 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4693 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4694 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4697 /* Push this or the type object */
4698 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
4699 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4700 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4701 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
4702 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4705 mono_mb_emit_ldarg (mb, 0);
4706 mono_mb_emit_stloc (mb, this_local);
4708 /* Call Monitor::Enter() */
4709 mono_mb_emit_ldloc (mb, this_local);
4710 mono_mb_emit_managed_call (mb, enter_method, NULL);
4712 clause->try_offset = mb->pos;
4714 /* Call the method */
4716 mono_mb_emit_ldarg (mb, 0);
4717 for (i = 0; i < sig->param_count; i++)
4718 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
4719 mono_mb_emit_managed_call (mb, method, method->signature);
4720 if (!MONO_TYPE_IS_VOID (sig->ret))
4721 mono_mb_emit_stloc (mb, ret_local);
4723 mono_mb_emit_byte (mb, CEE_LEAVE);
4725 mono_mb_emit_i4 (mb, 0);
4727 clause->try_len = mb->pos - clause->try_offset;
4728 clause->handler_offset = mb->pos;
4730 /* Call Monitor::Exit() */
4731 mono_mb_emit_ldloc (mb, this_local);
4732 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
4733 mono_mb_emit_managed_call (mb, exit_method, NULL);
4734 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
4736 clause->handler_len = mb->pos - clause->handler_offset;
4738 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4739 if (!MONO_TYPE_IS_VOID (sig->ret))
4740 mono_mb_emit_ldloc (mb, ret_local);
4741 mono_mb_emit_byte (mb, CEE_RET);
4743 res = mono_mb_create_and_cache (cache, method,
4744 mb, sig, sig->param_count + 16);
4747 header = ((MonoMethodNormal *)res)->header;
4748 header->num_clauses = 1;
4749 header->clauses = clause;
4754 /* FIXME: on win32 we should probably use GlobalAlloc(). */
4756 mono_marshal_alloc (gpointer size)
4758 MONO_ARCH_SAVE_REGS;
4760 return g_try_malloc ((gulong)size);
4764 mono_marshal_free (gpointer ptr)
4766 MONO_ARCH_SAVE_REGS;
4772 mono_marshal_free_array (gpointer *ptr, int size)
4779 for (i = 0; i < size; i++)
4785 mono_marshal_realloc (gpointer ptr, gpointer size)
4787 MONO_ARCH_SAVE_REGS;
4789 return g_try_realloc (ptr, (gulong)size);
4793 mono_marshal_string_array (MonoArray *array)
4801 len = mono_array_length (array);
4803 result = g_malloc (sizeof (char *) * (len + 1));
4804 for (i = 0; i < len; ++i) {
4805 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4806 result [i] = s ? mono_string_to_utf8 (s): NULL;
4808 /* null terminate the array */
4815 mono_marshal_string_array_to_unicode (MonoArray *array)
4823 len = mono_array_length (array);
4825 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
4826 for (i = 0; i < len; ++i) {
4827 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4828 result [i] = s ? mono_string_chars (s) : NULL;
4830 /* null terminate the array */
4837 * mono_marshal_set_last_error:
4839 * This function is invoked to set the last error value from a P/Invoke call
4840 * which has SetLastError set.
4843 mono_marshal_set_last_error (void)
4846 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
4848 TlsSetValue (last_error_tls_id, (gpointer)errno);
4853 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
4854 gpointer dest, gint32 length)
4859 MONO_ARCH_SAVE_REGS;
4861 MONO_CHECK_ARG_NULL (src);
4862 MONO_CHECK_ARG_NULL (dest);
4864 g_assert (src->obj.vtable->klass->rank == 1);
4865 g_assert (start_index >= 0);
4866 g_assert (length >= 0);
4867 g_assert (start_index + length <= mono_array_length (src));
4869 element_size = mono_array_element_size (src->obj.vtable->klass);
4871 source_addr = mono_array_addr_with_size (src, element_size, start_index);
4873 memcpy (dest, source_addr, length * element_size);
4877 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
4878 MonoArray *dest, gint32 length)
4883 MONO_ARCH_SAVE_REGS;
4885 MONO_CHECK_ARG_NULL (src);
4886 MONO_CHECK_ARG_NULL (dest);
4888 g_assert (dest->obj.vtable->klass->rank == 1);
4889 g_assert (start_index >= 0);
4890 g_assert (length >= 0);
4891 g_assert (start_index + length <= mono_array_length (dest));
4893 element_size = mono_array_element_size (dest->obj.vtable->klass);
4895 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
4897 memcpy (dest_addr, src, length * element_size);
4900 #if NO_UNALIGNED_ACCESS
4901 #define RETURN_UNALIGNED(type, addr) \
4904 memcpy(&val, p + offset, sizeof(val)); \
4907 #define WRITE_UNALIGNED(type, addr, val) \
4908 memcpy(addr, &val, sizeof(type))
4910 #define RETURN_UNALIGNED(type, addr) \
4911 return *(type*)(p + offset);
4912 #define WRITE_UNALIGNED(type, addr, val) \
4913 (*(type *)(addr) = (val))
4917 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
4921 MONO_ARCH_SAVE_REGS;
4923 RETURN_UNALIGNED(gpointer, p + offset);
4927 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
4931 MONO_ARCH_SAVE_REGS;
4933 return *(unsigned char*)(p + offset);
4937 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
4941 MONO_ARCH_SAVE_REGS;
4943 RETURN_UNALIGNED(gint16, p + offset);
4947 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
4951 MONO_ARCH_SAVE_REGS;
4953 RETURN_UNALIGNED(gint32, p + offset);
4957 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
4961 MONO_ARCH_SAVE_REGS;
4963 RETURN_UNALIGNED(gint64, p + offset);
4967 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
4971 MONO_ARCH_SAVE_REGS;
4973 *(unsigned char*)(p + offset) = val;
4977 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
4981 MONO_ARCH_SAVE_REGS;
4983 WRITE_UNALIGNED(gpointer, p + offset, val);
4987 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
4991 MONO_ARCH_SAVE_REGS;
4993 WRITE_UNALIGNED(gint16, p + offset, val);
4997 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5001 MONO_ARCH_SAVE_REGS;
5003 WRITE_UNALIGNED(gint32, p + offset, val);
5007 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5011 MONO_ARCH_SAVE_REGS;
5013 WRITE_UNALIGNED(gint64, p + offset, val);
5017 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5019 MONO_ARCH_SAVE_REGS;
5022 return mono_string_new (mono_domain_get (), "");
5024 return mono_string_new (mono_domain_get (), ptr);
5028 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5030 MONO_ARCH_SAVE_REGS;
5033 return mono_string_new (mono_domain_get (), "");
5035 return mono_string_new_len (mono_domain_get (), ptr, len);
5039 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5041 MonoDomain *domain = mono_domain_get ();
5045 MONO_ARCH_SAVE_REGS;
5048 return mono_string_new (mono_domain_get (), "");
5053 return mono_string_new_utf16 (domain, ptr, len);
5057 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5059 MonoDomain *domain = mono_domain_get ();
5061 MONO_ARCH_SAVE_REGS;
5064 return mono_string_new (mono_domain_get (), "");
5066 return mono_string_new_utf16 (domain, ptr, len);
5070 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5072 MONO_ARCH_SAVE_REGS;
5074 g_warning ("PtrToStringBSTR not implemented");
5075 g_assert_not_reached ();
5081 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5083 MONO_ARCH_SAVE_REGS;
5085 return ((guint32)TlsGetValue (last_error_tls_id));
5089 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5095 MONO_ARCH_SAVE_REGS;
5097 MONO_CHECK_ARG_NULL (rtype);
5100 klass = mono_class_from_mono_type (type);
5101 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5103 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5107 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5108 exc = mono_get_exception_argument ("t", msg);
5110 mono_raise_exception (exc);
5114 return mono_class_native_size (klass, NULL);
5118 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5123 MONO_ARCH_SAVE_REGS;
5125 MONO_CHECK_ARG_NULL (obj);
5126 MONO_CHECK_ARG_NULL (dst);
5128 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5132 pa [2] = &delete_old;
5134 mono_runtime_invoke (method, NULL, pa, NULL);
5138 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5143 MONO_ARCH_SAVE_REGS;
5145 MONO_CHECK_ARG_NULL (src);
5146 MONO_CHECK_ARG_NULL (dst);
5148 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5153 mono_runtime_invoke (method, NULL, pa, NULL);
5157 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5159 MonoDomain *domain = mono_domain_get ();
5162 MONO_ARCH_SAVE_REGS;
5164 MONO_CHECK_ARG_NULL (src);
5165 MONO_CHECK_ARG_NULL (type);
5167 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5169 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5175 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5177 MonoMarshalType *info;
5180 int i, match_index = -1;
5182 MONO_ARCH_SAVE_REGS;
5184 MONO_CHECK_ARG_NULL (type);
5185 MONO_CHECK_ARG_NULL (field_name);
5187 fname = mono_string_to_utf8 (field_name);
5188 klass = mono_class_from_mono_type (type->type);
5190 while(klass && match_index == -1) {
5191 for (i = 0; i < klass->field.count; ++i) {
5192 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5198 if(match_index == -1)
5199 klass = klass->parent;
5204 if(match_index == -1) {
5208 /* Get back original class instance */
5209 klass = mono_class_from_mono_type (type->type);
5211 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5212 exc = mono_get_exception_argument ("fieldName", tmp);
5215 mono_raise_exception ((MonoException*)exc);
5218 info = mono_marshal_load_type_info (klass);
5219 return info->fields [match_index].offset;
5223 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5225 MONO_ARCH_SAVE_REGS;
5227 return mono_string_to_utf8 (string);
5231 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5233 MONO_ARCH_SAVE_REGS;
5238 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5242 mono_struct_delete_old (MonoClass *klass, char *ptr)
5244 MonoMarshalType *info;
5247 info = mono_marshal_load_type_info (klass);
5249 for (i = 0; i < info->num_fields; i++) {
5250 MonoMarshalNative ntype;
5251 MonoMarshalConv conv;
5252 MonoType *ftype = info->fields [i].field->type;
5255 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5258 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5259 klass->unicode, &conv);
5261 cpos = ptr + info->fields [i].offset;
5264 case MONO_MARSHAL_CONV_NONE:
5265 if (MONO_TYPE_ISSTRUCT (ftype)) {
5266 mono_struct_delete_old (ftype->data.klass, cpos);
5270 case MONO_MARSHAL_CONV_STR_LPWSTR:
5271 case MONO_MARSHAL_CONV_STR_LPSTR:
5272 case MONO_MARSHAL_CONV_STR_LPTSTR:
5273 case MONO_MARSHAL_CONV_STR_BSTR:
5274 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5275 case MONO_MARSHAL_CONV_STR_TBSTR:
5276 g_free (*(gpointer *)cpos);
5285 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5289 MONO_ARCH_SAVE_REGS;
5291 MONO_CHECK_ARG_NULL (src);
5292 MONO_CHECK_ARG_NULL (type);
5294 klass = mono_class_from_mono_type (type->type);
5296 mono_struct_delete_old (klass, (char *)src);
5300 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5302 /* FIXME: Call AllocCoTaskMem under windows */
5303 MONO_ARCH_SAVE_REGS;
5305 return g_try_malloc ((gulong)size);
5309 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5311 /* FIXME: Call FreeCoTaskMem under windows */
5312 MONO_ARCH_SAVE_REGS;
5318 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5320 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5324 mono_marshal_load_type_info (MonoClass* klass)
5326 int i, j, count = 0, native_size = 0, min_align = 1;
5327 MonoMarshalType *info;
5330 g_assert (klass != NULL);
5332 if (klass->marshal_info)
5333 return klass->marshal_info;
5336 mono_class_init (klass);
5338 for (i = 0; i < klass->field.count; ++i) {
5339 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5341 if (mono_field_is_deleted (&klass->fields [i]))
5346 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5348 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5349 info->num_fields = count;
5351 /* Try to find a size for this type in metadata */
5352 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5354 if (klass->parent) {
5355 int parent_size = mono_class_native_size (klass->parent, NULL);
5357 /* Add parent size to real size */
5358 native_size += parent_size;
5359 info->native_size = parent_size;
5362 for (j = i = 0; i < klass->field.count; ++i) {
5365 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5368 if (mono_field_is_deleted (&klass->fields [i]))
5370 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5371 mono_metadata_field_info (klass->image, klass->field.first + i,
5372 NULL, NULL, &info->fields [j].mspec);
5374 info->fields [j].field = &klass->fields [i];
5376 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5377 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5378 /* This field is a hack inserted by MCS to empty structures */
5383 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5384 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
5385 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5386 &align, TRUE, klass->unicode);
5387 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5388 min_align = MAX (align, min_align);
5389 info->fields [j].offset = info->native_size;
5390 info->fields [j].offset += align - 1;
5391 info->fields [j].offset &= ~(align - 1);
5392 info->native_size = info->fields [j].offset + size;
5394 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5395 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5396 &align, TRUE, klass->unicode);
5397 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5398 min_align = MAX (align, min_align);
5399 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5400 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
5406 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5407 info->native_size = MAX (native_size, info->native_size);
5410 if (info->native_size & (min_align - 1)) {
5411 info->native_size += min_align - 1;
5412 info->native_size &= ~(min_align - 1);
5415 /* Update the class's blittable info, if the layouts don't match */
5416 if (info->native_size != mono_class_value_size (klass, NULL))
5417 klass->blittable = FALSE;
5419 /* If this is an array type, ensure that we have element info */
5420 if (klass->element_class) {
5421 mono_marshal_load_type_info (klass->element_class);
5424 return klass->marshal_info;
5428 * mono_class_native_size:
5431 * Returns: the native size of an object instance (when marshaled
5432 * to unmanaged code)
5435 mono_class_native_size (MonoClass *klass, guint32 *align)
5438 if (!klass->marshal_info)
5439 mono_marshal_load_type_info (klass);
5442 *align = klass->min_align;
5444 return klass->marshal_info->native_size;
5448 * mono_type_native_stack_size:
5449 * @t: the type to return the size it uses on the stack
5451 * Returns: the number of bytes required to hold an instance of this
5452 * type on the native stack
5455 mono_type_native_stack_size (MonoType *t, gint *align)
5459 g_assert (t != NULL);
5470 case MONO_TYPE_BOOLEAN:
5471 case MONO_TYPE_CHAR:
5480 case MONO_TYPE_STRING:
5481 case MONO_TYPE_OBJECT:
5482 case MONO_TYPE_CLASS:
5483 case MONO_TYPE_SZARRAY:
5485 case MONO_TYPE_FNPTR:
5486 case MONO_TYPE_ARRAY:
5487 case MONO_TYPE_TYPEDBYREF:
5498 case MONO_TYPE_VALUETYPE: {
5501 if (t->data.klass->enumtype)
5502 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
5504 size = mono_class_native_size (t->data.klass, align);
5505 *align = *align + 3;
5515 g_error ("type 0x%02x unknown", t->type);
5520 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
5521 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
5522 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
5523 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
5526 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
5527 gboolean as_field, gboolean unicode)
5529 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
5532 switch (native_type) {
5533 case MONO_NATIVE_BOOLEAN:
5536 case MONO_NATIVE_I1:
5537 case MONO_NATIVE_U1:
5540 case MONO_NATIVE_I2:
5541 case MONO_NATIVE_U2:
5542 case MONO_NATIVE_VARIANTBOOL:
5545 case MONO_NATIVE_I4:
5546 case MONO_NATIVE_U4:
5547 case MONO_NATIVE_ERROR:
5550 case MONO_NATIVE_I8:
5551 case MONO_NATIVE_U8:
5552 *align = ALIGNMENT(guint64);
5554 case MONO_NATIVE_R4:
5557 case MONO_NATIVE_R8:
5558 *align = ALIGNMENT(double);
5560 case MONO_NATIVE_INT:
5561 case MONO_NATIVE_UINT:
5562 case MONO_NATIVE_LPSTR:
5563 case MONO_NATIVE_LPWSTR:
5564 case MONO_NATIVE_LPTSTR:
5565 case MONO_NATIVE_BSTR:
5566 case MONO_NATIVE_ANSIBSTR:
5567 case MONO_NATIVE_TBSTR:
5568 case MONO_NATIVE_LPARRAY:
5569 case MONO_NATIVE_SAFEARRAY:
5570 case MONO_NATIVE_IUNKNOWN:
5571 case MONO_NATIVE_IDISPATCH:
5572 case MONO_NATIVE_INTERFACE:
5573 case MONO_NATIVE_ASANY:
5574 case MONO_NATIVE_FUNC:
5575 case MONO_NATIVE_LPSTRUCT:
5576 *align = ALIGNMENT(gpointer);
5577 return sizeof (gpointer);
5578 case MONO_NATIVE_STRUCT:
5579 klass = mono_class_from_mono_type (type);
5580 return mono_class_native_size (klass, align);
5581 case MONO_NATIVE_BYVALTSTR: {
5582 int esize = unicode ? 2: 1;
5585 return mspec->data.array_data.num_elem * esize;
5587 case MONO_NATIVE_BYVALARRAY: {
5589 klass = mono_class_from_mono_type (type);
5590 esize = mono_class_native_size (klass->element_class, align);
5592 return mspec->data.array_data.num_elem * esize;
5594 case MONO_NATIVE_CUSTOM:
5595 g_assert_not_reached ();
5597 case MONO_NATIVE_CURRENCY:
5598 case MONO_NATIVE_VBBYREFSTR:
5600 g_error ("native type %02x not implemented", native_type);
5603 g_assert_not_reached ();
5608 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
5616 t = &o->vtable->klass->byval_arg;
5623 case MONO_TYPE_BOOLEAN:
5626 case MONO_TYPE_CHAR:
5631 return mono_object_unbox (o);
5633 case MONO_TYPE_STRING:
5634 switch (string_encoding) {
5635 case MONO_NATIVE_LPWSTR:
5636 return mono_string_to_utf16 ((MonoString*)o);
5638 case MONO_NATIVE_LPSTR:
5639 return mono_string_to_utf8 ((MonoString*)o);
5642 g_warning ("marshaling conversion %d not implemented", string_encoding);
5643 g_assert_not_reached ();
5646 case MONO_TYPE_CLASS:
5647 case MONO_TYPE_VALUETYPE: {
5651 MonoBoolean delete_old = FALSE;
5653 klass = t->data.klass;
5655 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
5658 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5659 klass->blittable || klass->enumtype)
5660 return mono_object_unbox (o);
5662 res = g_malloc0 (mono_class_native_size (klass, NULL));
5664 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
5668 pa [2] = &delete_old;
5670 mono_runtime_invoke (method, NULL, pa, NULL);
5676 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
5682 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
5687 /* FIXME: Free embedded data as well */
5692 t = &o->vtable->klass->byval_arg;
5694 case MONO_TYPE_STRING:
5695 switch (string_encoding) {
5696 case MONO_NATIVE_LPWSTR:
5699 case MONO_NATIVE_LPSTR:
5703 g_warning ("marshaling conversion %d not implemented", string_encoding);
5704 g_assert_not_reached ();
5707 case MONO_TYPE_CLASS:
5708 case MONO_TYPE_VALUETYPE: {
5709 klass = t->data.klass;
5711 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5712 klass->blittable || klass->enumtype)