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"
25 //#define DEBUG_RUNTIME_CODE
27 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
31 #include "mono/cil/opcode.def"
36 struct _MonoMethodBuilder {
40 guint32 code_size, pos;
45 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
48 mono_marshal_runtime_glist_find_klass (gconstpointer a, gconstpointer b);
51 mono_find_method_by_name (MonoClass *klass, const char *name, int param_count)
53 MonoMethod *res = NULL;
56 for (i = 0; i < klass->method.count; ++i) {
57 if (klass->methods [i]->name[0] == name [0] &&
58 !strcmp (name, klass->methods [i]->name) &&
59 klass->methods [i]->signature->param_count == param_count) {
60 res = klass->methods [i];
67 #ifdef DEBUG_RUNTIME_CODE
69 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
71 return g_strdup (" ");
74 static MonoDisHelper marshal_dh = {
84 /* This mutex protects the various marshalling related caches in MonoImage */
85 static CRITICAL_SECTION marshal_mutex;
87 /* Maps wrapper methods to the methods they wrap */
88 static MonoGHashTable *wrapper_hash;
90 static guint32 last_error_tls_id;
93 mono_marshal_init (void)
95 static gboolean module_initialized = FALSE;
97 if (!module_initialized) {
98 module_initialized = TRUE;
99 InitializeCriticalSection (&marshal_mutex);
100 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
101 last_error_tls_id = TlsAlloc ();
106 mono_delegate_to_ftnptr (MonoDelegate *delegate)
108 MonoMethod *method, *wrapper, *invoke;
109 MonoMarshalSpec **mspecs;
116 if (delegate->delegate_trampoline)
117 return delegate->delegate_trampoline;
119 klass = ((MonoObject *)delegate)->vtable->klass;
120 g_assert (klass->delegate);
123 method = delegate->method_info->method;
124 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
126 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
127 mono_method_get_marshal_info (invoke, mspecs);
129 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
131 for (i = invoke->signature->param_count; i >= 0; i--)
135 delegate->delegate_trampoline = mono_compile_method (wrapper);
137 return delegate->delegate_trampoline;
141 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
146 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
148 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
150 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
152 /* FIXME: discard the wrapper and call the original method */
153 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
159 mono_array_to_savearray (MonoArray *array)
164 g_assert_not_reached ();
169 mono_array_to_lparray (MonoArray *array)
174 /* fixme: maybe we need to make a copy */
175 return array->vector;
179 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
181 GError *error = NULL;
191 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
193 if (items_written > mono_stringbuilder_capacity (sb))
194 items_written = mono_stringbuilder_capacity (sb);
197 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
198 sb->length = items_written;
200 g_error_free (error);
206 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
213 g_assert (mono_string_chars (sb->str) == text);
215 for (len = 0; text [len] != 0; ++len)
222 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
224 GError *error = NULL;
230 res = g_malloc0 (mono_stringbuilder_capacity (sb) + 1);
232 g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
234 g_error_free (error);
235 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
242 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
247 return mono_string_chars (sb->str);
251 mono_string_to_ansibstr (MonoString *string_obj)
253 g_error ("implement me");
258 mono_string_to_bstr (MonoString *string_obj)
260 g_error ("implement me");
265 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
270 g_assert (dst != NULL);
273 memset (dst, 0, size);
278 s = mono_string_to_utf8 (src);
279 len = MIN (size, strlen (s));
280 memcpy (dst, s, len);
283 *((char *)dst + size - 1) = 0;
287 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
291 g_assert (dst != NULL);
295 memset (dst, 0, size);
299 len = MIN (size, (mono_string_length (src) * 2));
300 memcpy (dst, mono_string_chars (src), len);
302 *((char *)dst + size - 1) = 0;
303 *((char *)dst + size - 2) = 0;
307 mono_mb_free (MonoMethodBuilder *mb)
309 g_list_free (mb->locals_list);
314 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
316 MonoMethodBuilder *mb;
319 g_assert (klass != NULL);
320 g_assert (name != NULL);
322 mb = g_new0 (MonoMethodBuilder, 1);
324 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
327 m->name = g_strdup (name);
329 m->inline_count = -1;
330 m->wrapper_type = type;
333 mb->code = g_malloc (mb->code_size);
339 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
341 int res = mb->locals;
343 g_assert (mb != NULL);
344 g_assert (type != NULL);
346 mb->locals_list = g_list_append (mb->locals_list, type);
353 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
355 MonoMethodHeader *header;
359 g_assert (mb != NULL);
361 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
362 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
367 header->max_stack = max_stack;
369 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
370 header->locals [i] = (MonoType *)l->data;
373 mb->method->signature = signature;
374 header->code = mb->code;
375 header->code_size = mb->pos;
376 header->num_locals = mb->locals;
378 #ifdef DEBUG_RUNTIME_CODE
379 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
380 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
387 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
389 MonoMethodWrapper *mw;
391 g_assert (mb != NULL);
393 mw = (MonoMethodWrapper *)mb->method;
395 mw->data = g_list_append (mw->data, data);
397 return g_list_length (mw->data);
401 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
403 mb->code [pos] = value & 0xff;
404 mb->code [pos + 1] = (value >> 8) & 0xff;
405 mb->code [pos + 2] = (value >> 16) & 0xff;
406 mb->code [pos + 3] = (value >> 24) & 0xff;
410 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
412 *((gint8 *)(&mb->code [pos])) = value;
416 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
418 if (mb->pos >= mb->code_size) {
420 mb->code = g_realloc (mb->code, mb->code_size);
423 mb->code [mb->pos++] = op;
427 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
429 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
430 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
433 mono_mb_emit_icon (mb, offset);
434 mono_mb_emit_byte (mb, CEE_ADD);
439 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
442 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
443 mono_mb_emit_byte (mb, CEE_LDIND_I);
444 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
445 mono_mb_emit_byte (mb, CEE_ADD);
446 mono_mb_emit_byte (mb, CEE_LDIND_I);
447 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
448 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
449 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
450 mono_mb_emit_byte (mb, branch_code);
452 mono_mb_emit_i4 (mb, 0);
457 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
459 if ((mb->pos + 4) >= mb->code_size) {
461 mb->code = g_realloc (mb->code, mb->code_size);
464 mono_mb_patch_addr (mb, mb->pos, data);
469 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
471 if ((mb->pos + 2) >= mb->code_size) {
473 mb->code = g_realloc (mb->code, mb->code_size);
476 mb->code [mb->pos] = data & 0xff;
477 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
482 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
484 mono_mb_emit_byte (mb, CEE_LDSTR);
485 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
490 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
493 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
494 } else if (argnum < 256) {
495 mono_mb_emit_byte (mb, CEE_LDARG_S);
496 mono_mb_emit_byte (mb, argnum);
498 mono_mb_emit_byte (mb, CEE_PREFIX1);
499 mono_mb_emit_byte (mb, CEE_LDARG);
500 mono_mb_emit_i2 (mb, argnum);
505 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
508 mono_mb_emit_byte (mb, CEE_LDARGA_S);
509 mono_mb_emit_byte (mb, argnum);
511 mono_mb_emit_byte (mb, CEE_PREFIX1);
512 mono_mb_emit_byte (mb, CEE_LDARGA);
513 mono_mb_emit_i2 (mb, argnum);
518 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
521 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
522 mono_mb_emit_byte (mb, locnum);
524 mono_mb_emit_byte (mb, CEE_PREFIX1);
525 mono_mb_emit_byte (mb, CEE_LDLOCA);
526 mono_mb_emit_i2 (mb, locnum);
531 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
534 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
535 } else if (num < 256) {
536 mono_mb_emit_byte (mb, CEE_LDLOC_S);
537 mono_mb_emit_byte (mb, num);
539 mono_mb_emit_byte (mb, CEE_PREFIX1);
540 mono_mb_emit_byte (mb, CEE_LDLOC);
541 mono_mb_emit_i2 (mb, num);
546 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
549 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
550 } else if (num < 256) {
551 mono_mb_emit_byte (mb, CEE_STLOC_S);
552 mono_mb_emit_byte (mb, num);
554 mono_mb_emit_byte (mb, CEE_PREFIX1);
555 mono_mb_emit_byte (mb, CEE_STLOC);
556 mono_mb_emit_i2 (mb, num);
561 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
563 if (value >= -1 && value < 8) {
564 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
565 } else if (value >= -128 && value <= 127) {
566 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
567 mono_mb_emit_byte (mb, value);
569 mono_mb_emit_byte (mb, CEE_LDC_I4);
570 mono_mb_emit_i4 (mb, value);
575 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
578 mono_mb_emit_byte (mb, op);
580 mono_mb_emit_i4 (mb, 0);
585 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
587 mono_mb_emit_byte (mb, CEE_CALLI);
588 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
592 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
594 mono_mb_emit_byte (mb, CEE_PREFIX1);
595 mono_mb_emit_byte (mb, CEE_LDFTN);
596 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
597 mono_mb_emit_calli (mb, opt_sig ? opt_sig : method->signature);
601 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
603 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
604 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
605 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
606 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
607 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
608 mono_mb_emit_calli (mb, sig);
609 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
610 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
614 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
616 /* fixme: we need a better way to throw exception,
617 * supporting several exception types and messages */
618 MonoMethod *ctor = NULL;
620 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
622 mono_class_init (mme);
623 for (i = 0; i < mme->method.count; ++i) {
624 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
625 ctor = mme->methods [i];
630 mono_mb_emit_byte (mb, CEE_NEWOBJ);
631 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
633 mono_mb_emit_byte (mb, CEE_DUP);
634 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
635 mono_mb_emit_ldstr (mb, (char*)msg);
636 mono_mb_emit_byte (mb, CEE_STIND_I);
638 mono_mb_emit_byte (mb, CEE_THROW);
642 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
644 mono_mb_emit_ldloc (mb, local);
645 mono_mb_emit_icon (mb, incr);
646 mono_mb_emit_byte (mb, CEE_ADD);
647 mono_mb_emit_stloc (mb, local);
651 emit_ptr_to_str_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
652 int usize, int msize, MonoMarshalSpec *mspec)
655 case MONO_MARSHAL_CONV_BOOL_I4:
656 mono_mb_emit_byte (mb, CEE_LDLOC_1);
657 mono_mb_emit_byte (mb, CEE_LDLOC_0);
658 mono_mb_emit_byte (mb, CEE_LDIND_I4);
659 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
660 mono_mb_emit_byte (mb, 3);
661 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
662 mono_mb_emit_byte (mb, CEE_BR_S);
663 mono_mb_emit_byte (mb, 1);
664 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
665 mono_mb_emit_byte (mb, CEE_STIND_I1);
667 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
668 mono_mb_emit_byte (mb, CEE_LDLOC_1);
669 mono_mb_emit_byte (mb, CEE_LDLOC_0);
670 mono_mb_emit_byte (mb, CEE_LDIND_I2);
671 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
672 mono_mb_emit_byte (mb, 3);
673 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
674 mono_mb_emit_byte (mb, CEE_BR_S);
675 mono_mb_emit_byte (mb, 1);
676 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
677 mono_mb_emit_byte (mb, CEE_STIND_I1);
679 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
680 MonoClass *eclass = NULL;
683 if (type->type == MONO_TYPE_SZARRAY) {
684 eclass = type->data.klass;
686 g_assert_not_reached ();
689 if (eclass->valuetype)
690 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
692 esize = sizeof (gpointer);
694 /* create a new array */
695 mono_mb_emit_byte (mb, CEE_LDLOC_1);
696 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
697 mono_mb_emit_byte (mb, CEE_NEWARR);
698 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
699 mono_mb_emit_byte (mb, CEE_STIND_I);
701 /* copy the elements */
702 mono_mb_emit_byte (mb, CEE_LDLOC_1);
703 mono_mb_emit_byte (mb, CEE_LDIND_I);
704 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
705 mono_mb_emit_byte (mb, CEE_ADD);
706 mono_mb_emit_byte (mb, CEE_LDLOC_0);
707 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
708 mono_mb_emit_byte (mb, CEE_PREFIX1);
709 mono_mb_emit_byte (mb, CEE_CPBLK);
713 case MONO_MARSHAL_CONV_STR_BYVALSTR:
714 mono_mb_emit_byte (mb, CEE_LDLOC_1);
715 mono_mb_emit_byte (mb, CEE_LDLOC_0);
716 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
717 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
718 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
719 mono_mb_emit_byte (mb, CEE_STIND_I);
721 case MONO_MARSHAL_CONV_STR_LPTSTR:
722 case MONO_MARSHAL_CONV_STR_LPSTR:
723 mono_mb_emit_byte (mb, CEE_LDLOC_1);
724 mono_mb_emit_byte (mb, CEE_LDLOC_0);
725 mono_mb_emit_byte (mb, CEE_LDIND_I);
726 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
727 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
728 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
729 mono_mb_emit_byte (mb, CEE_STIND_I);
731 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
732 MonoClass *klass = mono_class_from_mono_type (type);
733 int src_var, dst_var;
735 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
736 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
738 /* *dst = new object */
739 mono_mb_emit_byte (mb, CEE_LDLOC_1);
740 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
741 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
742 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
743 mono_mb_emit_byte (mb, CEE_STIND_I);
745 /* save the old src pointer */
746 mono_mb_emit_byte (mb, CEE_LDLOC_0);
747 mono_mb_emit_stloc (mb, src_var);
748 /* save the old dst pointer */
749 mono_mb_emit_byte (mb, CEE_LDLOC_1);
750 mono_mb_emit_stloc (mb, dst_var);
752 /* dst = pointer to newly created object data */
753 mono_mb_emit_byte (mb, CEE_LDLOC_1);
754 mono_mb_emit_byte (mb, CEE_LDIND_I);
755 mono_mb_emit_icon (mb, sizeof (MonoObject));
756 mono_mb_emit_byte (mb, CEE_ADD);
757 mono_mb_emit_byte (mb, CEE_STLOC_1);
759 emit_struct_conv (mb, klass, TRUE);
761 /* restore the old src pointer */
762 mono_mb_emit_ldloc (mb, src_var);
763 mono_mb_emit_byte (mb, CEE_STLOC_0);
764 /* restore the old dst pointer */
765 mono_mb_emit_ldloc (mb, dst_var);
766 mono_mb_emit_byte (mb, CEE_STLOC_1);
769 case MONO_MARSHAL_CONV_DEL_FTN: {
770 // fixme: we never convert functions back to delegates, dont
771 // know if thats the correct behaviour
774 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
775 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
777 case MONO_MARSHAL_CONV_STR_LPWSTR:
778 case MONO_MARSHAL_CONV_STR_BSTR:
779 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
780 case MONO_MARSHAL_CONV_STR_TBSTR:
781 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
782 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
784 g_warning ("marshaling conversion %d not implemented", conv);
785 g_assert_not_reached ();
790 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
791 MonoMarshalSpec *mspec)
796 case MONO_MARSHAL_CONV_BOOL_I4:
797 mono_mb_emit_byte (mb, CEE_LDLOC_1);
798 mono_mb_emit_byte (mb, CEE_LDLOC_0);
799 mono_mb_emit_byte (mb, CEE_LDIND_U1);
800 mono_mb_emit_byte (mb, CEE_STIND_I4);
802 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
803 mono_mb_emit_byte (mb, CEE_LDLOC_1);
804 mono_mb_emit_byte (mb, CEE_LDLOC_0);
805 mono_mb_emit_byte (mb, CEE_LDIND_U1);
806 mono_mb_emit_byte (mb, CEE_NEG);
807 mono_mb_emit_byte (mb, CEE_STIND_I2);
809 case MONO_MARSHAL_CONV_STR_LPWSTR:
810 case MONO_MARSHAL_CONV_STR_LPSTR:
811 case MONO_MARSHAL_CONV_STR_LPTSTR:
812 case MONO_MARSHAL_CONV_STR_BSTR:
813 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
814 case MONO_MARSHAL_CONV_STR_TBSTR:
815 /* free space if free == true */
816 mono_mb_emit_byte (mb, CEE_LDLOC_2);
817 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
818 mono_mb_emit_byte (mb, 4);
819 mono_mb_emit_byte (mb, CEE_LDLOC_1);
820 mono_mb_emit_byte (mb, CEE_LDIND_I);
821 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
822 mono_mb_emit_byte (mb, CEE_MONO_FREE);
824 mono_mb_emit_byte (mb, CEE_LDLOC_1);
825 mono_mb_emit_byte (mb, CEE_LDLOC_0);
826 mono_mb_emit_byte (mb, CEE_LDIND_I);
827 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
828 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
829 mono_mb_emit_byte (mb, conv);
830 mono_mb_emit_byte (mb, CEE_STIND_I);
832 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
833 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
834 case MONO_MARSHAL_CONV_DEL_FTN:
835 mono_mb_emit_byte (mb, CEE_LDLOC_1);
836 mono_mb_emit_byte (mb, CEE_LDLOC_0);
837 mono_mb_emit_byte (mb, CEE_LDIND_I);
838 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
839 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
840 mono_mb_emit_byte (mb, conv);
841 mono_mb_emit_byte (mb, CEE_STIND_I);
843 case MONO_MARSHAL_CONV_STR_BYVALSTR:
844 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
848 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
849 mono_mb_emit_byte (mb, CEE_LDLOC_0);
850 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
851 mono_mb_emit_icon (mb, usize);
852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
853 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
854 mono_mb_emit_byte (mb, conv);
857 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
858 MonoClass *eclass = NULL;
861 if (type->type == MONO_TYPE_SZARRAY) {
862 eclass = type->data.klass;
864 g_assert_not_reached ();
867 if (eclass->valuetype)
868 esize = mono_class_native_size (eclass, NULL);
870 esize = sizeof (gpointer);
875 mono_mb_emit_byte (mb, CEE_LDLOC_0);
876 mono_mb_emit_byte (mb, CEE_LDIND_I);
877 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
879 mono_mb_emit_byte (mb, 0);
881 mono_mb_emit_byte (mb, CEE_LDLOC_1);
882 mono_mb_emit_byte (mb, CEE_LDLOC_0);
883 mono_mb_emit_byte (mb, CEE_LDIND_I);
884 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
885 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
886 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
887 mono_mb_emit_byte (mb, CEE_ADD);
888 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
889 mono_mb_emit_byte (mb, CEE_PREFIX1);
890 mono_mb_emit_byte (mb, CEE_CPBLK);
891 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
894 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
895 int src_var, dst_var;
897 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
898 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
900 mono_mb_emit_byte (mb, CEE_LDLOC_0);
901 mono_mb_emit_byte (mb, CEE_LDIND_I);
902 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
904 mono_mb_emit_byte (mb, 0);
906 /* save the old src pointer */
907 mono_mb_emit_byte (mb, CEE_LDLOC_0);
908 mono_mb_emit_stloc (mb, src_var);
909 /* save the old dst pointer */
910 mono_mb_emit_byte (mb, CEE_LDLOC_1);
911 mono_mb_emit_stloc (mb, dst_var);
913 /* src = pointer to object data */
914 mono_mb_emit_byte (mb, CEE_LDLOC_0);
915 mono_mb_emit_byte (mb, CEE_LDIND_I);
916 mono_mb_emit_icon (mb, sizeof (MonoObject));
917 mono_mb_emit_byte (mb, CEE_ADD);
918 mono_mb_emit_byte (mb, CEE_STLOC_0);
920 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
922 /* restore the old src pointer */
923 mono_mb_emit_ldloc (mb, src_var);
924 mono_mb_emit_byte (mb, CEE_STLOC_0);
925 /* restore the old dst pointer */
926 mono_mb_emit_ldloc (mb, dst_var);
927 mono_mb_emit_byte (mb, CEE_STLOC_1);
929 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
933 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
934 MonoException *exc = mono_get_exception_not_implemented (msg);
937 mono_raise_exception (exc);
943 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
945 MonoMarshalType *info;
949 emit_struct_conv(mb, klass->parent, to_object);
951 info = mono_marshal_load_type_info (klass);
953 if (info->native_size == 0)
956 if (klass->blittable) {
957 int msize = mono_class_value_size (klass, NULL);
958 g_assert (msize == info->native_size);
959 mono_mb_emit_byte (mb, CEE_LDLOC_1);
960 mono_mb_emit_byte (mb, CEE_LDLOC_0);
961 mono_mb_emit_icon (mb, msize);
962 mono_mb_emit_byte (mb, CEE_PREFIX1);
963 mono_mb_emit_byte (mb, CEE_CPBLK);
965 mono_mb_emit_add_to_local (mb, 0, msize);
966 mono_mb_emit_add_to_local (mb, 1, msize);
970 for (i = 0; i < info->num_fields; i++) {
971 MonoMarshalNative ntype;
972 MonoMarshalConv conv;
973 MonoType *ftype = info->fields [i].field->type;
976 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
978 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
981 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
984 msize = klass->instance_size - info->fields [i].field->offset;
985 usize = info->native_size - info->fields [i].offset;
987 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
988 usize = info->fields [i + 1].offset - info->fields [i].offset;
990 if ((msize < 0) || (usize < 0))
991 /* This happens with GC aware auto layout */
992 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
994 g_assert ((msize >= 0) && (usize >= 0));
997 case MONO_MARSHAL_CONV_NONE: {
1000 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1001 ftype->type == MONO_TYPE_U) {
1002 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1003 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1004 mono_mb_emit_byte (mb, CEE_LDIND_I);
1005 mono_mb_emit_byte (mb, CEE_STIND_I);
1014 #if SIZEOF_VOID_P == 4
1017 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1018 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1019 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1020 mono_mb_emit_byte (mb, CEE_STIND_I4);
1024 case MONO_TYPE_BOOLEAN:
1025 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1026 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1027 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1028 mono_mb_emit_byte (mb, CEE_STIND_I1);
1032 case MONO_TYPE_CHAR:
1033 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1034 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1035 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1036 mono_mb_emit_byte (mb, CEE_STIND_I2);
1040 #if SIZEOF_VOID_P == 8
1043 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1044 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1045 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1046 mono_mb_emit_byte (mb, CEE_STIND_I8);
1049 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1050 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1051 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1052 mono_mb_emit_byte (mb, CEE_STIND_R4);
1055 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1056 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1057 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1058 mono_mb_emit_byte (mb, CEE_STIND_R8);
1060 case MONO_TYPE_VALUETYPE:
1061 if (ftype->data.klass->enumtype) {
1062 t = ftype->data.klass->enum_basetype->type;
1065 emit_struct_conv (mb, ftype->data.klass, to_object);
1068 g_warning ("marshaling type %02x not implemented", ftype->type);
1069 g_assert_not_reached ();
1075 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1077 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1081 mono_mb_emit_add_to_local (mb, 0, usize);
1082 mono_mb_emit_add_to_local (mb, 1, msize);
1084 mono_mb_emit_add_to_local (mb, 0, msize);
1085 mono_mb_emit_add_to_local (mb, 1, usize);
1091 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1093 static MonoMethodSignature *state_check_sig = NULL;
1096 if (!state_check_sig) {
1097 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1098 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1099 state_check_sig->pinvoke = 0;
1102 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1103 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1104 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1105 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1106 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1108 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1110 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1113 static MonoAsyncResult *
1114 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1116 MonoMethodMessage *msg;
1117 MonoDelegate *async_callback;
1121 MonoMethod *method = NULL;
1124 g_assert (delegate);
1126 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1128 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1129 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1131 // If the target is a proxy, make a direct call. Is proxy's work
1132 // to make the call asynchronous.
1134 MonoAsyncResult *ares;
1136 MonoArray *out_args;
1138 method = delegate->method_info->method;
1140 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1141 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1142 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1143 ares->async_delegate = (MonoObject *)delegate;
1144 ares->async_callback = (MonoObject *)async_callback;
1145 msg->async_result = ares;
1146 msg->call_type = CallType_BeginInvoke;
1148 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1153 klass = delegate->object.vtable->klass;
1155 method = mono_get_delegate_invoke (klass);
1156 for (i = 0; i < klass->method.count; ++i) {
1157 if (klass->methods [i]->name[0] == 'B' &&
1158 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1159 method = klass->methods [i];
1164 g_assert (method != NULL);
1166 im = mono_get_delegate_invoke (method->klass);
1167 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1169 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1173 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1175 int i, params_var, tmp_var;
1177 /* allocate local (pointer) *params[] */
1178 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1179 /* allocate local (pointer) tmp */
1180 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1182 /* alloate space on stack to store an array of pointers to the arguments */
1183 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1184 mono_mb_emit_byte (mb, CEE_PREFIX1);
1185 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1186 mono_mb_emit_stloc (mb, params_var);
1189 mono_mb_emit_ldloc (mb, params_var);
1190 mono_mb_emit_stloc (mb, tmp_var);
1192 if (save_this && sig->hasthis) {
1193 mono_mb_emit_ldloc (mb, tmp_var);
1194 mono_mb_emit_ldarg_addr (mb, 0);
1195 mono_mb_emit_byte (mb, CEE_STIND_I);
1196 /* tmp = tmp + sizeof (gpointer) */
1197 if (sig->param_count)
1198 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1202 for (i = 0; i < sig->param_count; i++) {
1203 mono_mb_emit_ldloc (mb, tmp_var);
1204 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1205 mono_mb_emit_byte (mb, CEE_STIND_I);
1206 /* tmp = tmp + sizeof (gpointer) */
1207 if (i < (sig->param_count - 1))
1208 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1215 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1219 GString *res = g_string_new ("");
1222 g_string_append (res, prefix);
1223 g_string_append_c (res, '_');
1226 mono_type_get_desc (res, sig->ret, FALSE);
1228 for (i = 0; i < sig->param_count; ++i) {
1229 g_string_append_c (res, '_');
1230 mono_type_get_desc (res, sig->params [i], FALSE);
1233 g_string_free (res, FALSE);
1238 * mono_marshal_get_string_encoding:
1240 * Return the string encoding which should be used for a given parameter.
1242 static MonoMarshalNative
1243 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1245 /* First try the parameter marshal info */
1247 if (spec->native == MONO_NATIVE_LPARRAY) {
1248 if (spec->data.array_data.elem_type != 0)
1249 return spec->data.array_data.elem_type;
1252 return spec->native;
1256 return MONO_NATIVE_LPSTR;
1258 /* Then try the method level marshal info */
1259 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1260 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1261 return MONO_NATIVE_LPSTR;
1262 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1263 return MONO_NATIVE_LPWSTR;
1264 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1265 return MONO_NATIVE_LPTSTR;
1267 return MONO_NATIVE_LPSTR;
1271 static inline MonoMethod*
1272 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1276 EnterCriticalSection (&marshal_mutex);
1277 res = g_hash_table_lookup (cache, key);
1278 LeaveCriticalSection (&marshal_mutex);
1282 /* Create the method from the builder and place it in the cache */
1283 static inline MonoMethod*
1284 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1285 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1290 EnterCriticalSection (&marshal_mutex);
1291 res = g_hash_table_lookup (cache, key);
1293 /* This does not acquire any locks */
1294 res = mono_mb_create_method (mb, sig, max_stack);
1295 g_hash_table_insert (cache, key, res);
1296 mono_g_hash_table_insert (wrapper_hash, res, key);
1299 /* Somebody created it before us */
1301 LeaveCriticalSection (&marshal_mutex);
1307 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1311 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1314 EnterCriticalSection (&marshal_mutex);
1315 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1316 LeaveCriticalSection (&marshal_mutex);
1318 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1319 /* See mono_marshal_get_remoting_invoke_with_check */
1320 return (MonoMethod*)((char*)res - 1);
1326 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1328 MonoMethodSignature *sig;
1329 static MonoMethodSignature *csig = NULL;
1330 MonoMethodBuilder *mb;
1336 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1337 !strcmp (method->name, "BeginInvoke"));
1339 sig = method->signature;
1341 cache = method->klass->image->delegate_begin_invoke_cache;
1342 if ((res = mono_marshal_find_in_cache (cache, sig)))
1345 g_assert (sig->hasthis);
1348 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1350 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1351 csig->ret = &mono_defaults.object_class->byval_arg;
1352 csig->params [0] = &mono_defaults.object_class->byval_arg;
1353 csig->params [1] = &mono_defaults.int_class->byval_arg;
1356 name = mono_signature_to_name (sig, "begin_invoke");
1357 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1360 mb->method->save_lmf = 1;
1362 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1364 mono_mb_emit_ldarg (mb, 0);
1365 mono_mb_emit_ldloc (mb, params_var);
1366 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1367 emit_thread_interrupt_checkpoint (mb);
1368 mono_mb_emit_byte (mb, CEE_RET);
1370 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1376 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1378 MonoDomain *domain = mono_domain_get ();
1379 MonoAsyncResult *ares;
1380 MonoMethod *method = NULL;
1381 MonoMethodSignature *sig;
1382 MonoMethodMessage *msg;
1383 MonoObject *res, *exc;
1384 MonoArray *out_args;
1388 g_assert (delegate);
1390 if (!delegate->method_info || !delegate->method_info->method)
1391 g_assert_not_reached ();
1393 klass = delegate->object.vtable->klass;
1395 for (i = 0; i < klass->method.count; ++i) {
1396 if (klass->methods [i]->name[0] == 'E' &&
1397 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1398 method = klass->methods [i];
1403 g_assert (method != NULL);
1405 sig = method->signature;
1407 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1409 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1412 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1413 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1414 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1415 mono_message_init (domain, msg, delegate->method_info, NULL);
1416 msg->call_type = CallType_EndInvoke;
1417 msg->async_result = ares;
1418 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1421 res = mono_thread_pool_finish (ares, &out_args, &exc);
1424 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1426 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1428 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1430 mono_raise_exception ((MonoException*)exc);
1433 mono_method_return_message_restore (method, params, out_args);
1438 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1440 if (return_type->byref)
1441 return_type = &mono_defaults.int_class->byval_arg;
1442 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1443 return_type = return_type->data.klass->enum_basetype;
1445 switch (return_type->type) {
1446 case MONO_TYPE_VOID:
1447 g_assert_not_reached ();
1450 case MONO_TYPE_STRING:
1451 case MONO_TYPE_CLASS:
1452 case MONO_TYPE_OBJECT:
1453 case MONO_TYPE_ARRAY:
1454 case MONO_TYPE_SZARRAY:
1458 case MONO_TYPE_BOOLEAN:
1459 mono_mb_emit_byte (mb, CEE_UNBOX);
1460 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1461 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1464 mono_mb_emit_byte (mb, CEE_UNBOX);
1465 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1466 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1469 case MONO_TYPE_CHAR:
1470 mono_mb_emit_byte (mb, CEE_UNBOX);
1471 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1472 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1475 mono_mb_emit_byte (mb, CEE_UNBOX);
1476 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1477 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1481 mono_mb_emit_byte (mb, CEE_UNBOX);
1482 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1483 mono_mb_emit_byte (mb, CEE_LDIND_I);
1486 mono_mb_emit_byte (mb, CEE_UNBOX);
1487 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1488 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1491 mono_mb_emit_byte (mb, CEE_UNBOX);
1492 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1493 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1497 mono_mb_emit_byte (mb, CEE_UNBOX);
1498 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1499 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1502 mono_mb_emit_byte (mb, CEE_UNBOX);
1503 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1504 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1507 mono_mb_emit_byte (mb, CEE_UNBOX);
1508 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1509 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1511 case MONO_TYPE_VALUETYPE: {
1513 mono_mb_emit_byte (mb, CEE_UNBOX);
1514 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1515 mono_mb_emit_i4 (mb, class);
1516 mono_mb_emit_byte (mb, CEE_LDOBJ);
1517 mono_mb_emit_i4 (mb, class);
1521 g_warning ("type 0x%x not handled", return_type->type);
1522 g_assert_not_reached ();
1525 mono_mb_emit_byte (mb, CEE_RET);
1529 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1531 MonoMethodSignature *sig;
1532 static MonoMethodSignature *csig = NULL;
1533 MonoMethodBuilder *mb;
1539 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1540 !strcmp (method->name, "EndInvoke"));
1542 sig = method->signature;
1544 cache = method->klass->image->delegate_end_invoke_cache;
1545 if ((res = mono_marshal_find_in_cache (cache, sig)))
1548 g_assert (sig->hasthis);
1551 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1553 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1554 csig->ret = &mono_defaults.object_class->byval_arg;
1555 csig->params [0] = &mono_defaults.object_class->byval_arg;
1556 csig->params [1] = &mono_defaults.int_class->byval_arg;
1559 name = mono_signature_to_name (sig, "end_invoke");
1560 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1563 mb->method->save_lmf = 1;
1565 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1567 mono_mb_emit_ldarg (mb, 0);
1568 mono_mb_emit_ldloc (mb, params_var);
1569 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1570 emit_thread_interrupt_checkpoint (mb);
1572 if (sig->ret->type == MONO_TYPE_VOID) {
1573 mono_mb_emit_byte (mb, CEE_POP);
1574 mono_mb_emit_byte (mb, CEE_RET);
1576 mono_mb_emit_restore_result (mb, sig->ret);
1578 res = mono_mb_create_and_cache (cache, sig,
1579 mb, sig, sig->param_count + 16);
1586 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1588 MonoMethodMessage *msg;
1589 MonoTransparentProxy *this;
1590 MonoObject *res, *exc;
1591 MonoArray *out_args;
1593 this = *((MonoTransparentProxy **)params [0]);
1596 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1598 /* skip the this pointer */
1601 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1604 MonoMethodSignature *sig = method->signature;
1605 int count = sig->param_count;
1606 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1608 for (i=0; i<count; i++) {
1609 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1610 if (class->valuetype) {
1611 if (sig->params [i]->byref)
1612 mparams[i] = *((gpointer *)params [i]);
1614 mparams[i] = params [i];
1616 mparams[i] = *((gpointer**)params [i]);
1620 return mono_runtime_invoke (method, this, mparams, NULL);
1623 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1625 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1628 mono_raise_exception ((MonoException *)exc);
1630 mono_method_return_message_restore (method, params, out_args);
1636 mono_marshal_get_remoting_invoke (MonoMethod *method)
1638 MonoMethodSignature *sig;
1639 static MonoMethodSignature *csig = NULL;
1640 MonoMethodBuilder *mb;
1647 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1650 sig = method->signature;
1652 /* we cant remote methods without this pointer */
1656 cache = method->klass->image->remoting_invoke_cache;
1657 if ((res = mono_marshal_find_in_cache (cache, method)))
1661 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1662 csig->params [0] = &mono_defaults.int_class->byval_arg;
1663 csig->params [1] = &mono_defaults.int_class->byval_arg;
1664 csig->ret = &mono_defaults.object_class->byval_arg;
1668 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1669 mb->method->save_lmf = 1;
1671 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1673 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1674 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1675 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1676 mono_mb_emit_ldloc (mb, params_var);
1677 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1678 emit_thread_interrupt_checkpoint (mb);
1680 if (sig->ret->type == MONO_TYPE_VOID) {
1681 mono_mb_emit_byte (mb, CEE_POP);
1682 mono_mb_emit_byte (mb, CEE_RET);
1684 mono_mb_emit_restore_result (mb, sig->ret);
1687 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1694 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1696 MonoMethodSignature *sig;
1697 MonoMethodBuilder *mb;
1698 MonoMethod *res, *native;
1704 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1707 sig = method->signature;
1709 /* we cant remote methods without this pointer */
1710 g_assert (sig->hasthis);
1712 cache = method->klass->image->remoting_invoke_cache;
1713 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1716 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1718 mono_mb_emit_ldarg (mb, 0);
1719 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1721 native = mono_marshal_get_remoting_invoke (method);
1723 for (i = 0; i <= sig->param_count; i++)
1724 mono_mb_emit_ldarg (mb, i);
1726 mono_mb_emit_managed_call (mb, native, native->signature);
1727 mono_mb_emit_byte (mb, CEE_RET);
1729 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1731 for (i = 0; i <= sig->param_count; i++)
1732 mono_mb_emit_ldarg (mb, i);
1734 mono_mb_emit_managed_call (mb, method, method->signature);
1735 mono_mb_emit_byte (mb, CEE_RET);
1737 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1738 mb, sig, sig->param_count + 16);
1745 * the returned method invokes all methods in a multicast delegate
1748 mono_marshal_get_delegate_invoke (MonoMethod *method)
1750 MonoMethodSignature *sig, *static_sig;
1752 MonoMethodBuilder *mb;
1758 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1759 !strcmp (method->name, "Invoke"));
1761 sig = method->signature;
1763 cache = method->klass->image->delegate_invoke_cache;
1764 if ((res = mono_marshal_find_in_cache (cache, sig)))
1767 static_sig = mono_metadata_signature_dup (sig);
1768 static_sig->hasthis = 0;
1770 name = mono_signature_to_name (sig, "invoke");
1771 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1774 /* allocate local 0 (object) */
1775 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1777 g_assert (sig->hasthis);
1781 * prev.Invoke( args .. );
1782 * return this.<target>( args .. );
1785 /* this wrapper can be used in unmanaged-managed transitions */
1786 emit_thread_interrupt_checkpoint (mb);
1788 /* get this->prev */
1789 mono_mb_emit_ldarg (mb, 0);
1790 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
1791 mono_mb_emit_byte (mb, CEE_LDIND_I );
1792 mono_mb_emit_stloc (mb, 0);
1794 /* if prev != null */
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_byte (mb, CEE_BRFALSE);
1799 mono_mb_emit_i4 (mb, 0);
1802 mono_mb_emit_ldloc (mb, 0);
1803 for (i = 0; i < sig->param_count; i++)
1804 mono_mb_emit_ldarg (mb, i + 1);
1805 mono_mb_emit_managed_call (mb, method, method->signature);
1806 if (sig->ret->type != MONO_TYPE_VOID)
1807 mono_mb_emit_byte (mb, CEE_POP);
1809 /* continued or prev == null */
1810 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1812 /* get this->target */
1813 mono_mb_emit_ldarg (mb, 0);
1814 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
1815 mono_mb_emit_byte (mb, CEE_LDIND_I );
1816 mono_mb_emit_stloc (mb, 0);
1818 /* if target != null */
1819 mono_mb_emit_ldloc (mb, 0);
1820 mono_mb_emit_byte (mb, CEE_BRFALSE);
1822 mono_mb_emit_i4 (mb, 0);
1824 /* then call this->method_ptr nonstatic */
1825 mono_mb_emit_ldloc (mb, 0);
1826 for (i = 0; i < sig->param_count; ++i)
1827 mono_mb_emit_ldarg (mb, i + 1);
1828 mono_mb_emit_ldarg (mb, 0);
1829 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1830 mono_mb_emit_byte (mb, CEE_LDIND_I );
1831 mono_mb_emit_byte (mb, CEE_CALLI);
1832 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
1834 mono_mb_emit_byte (mb, CEE_BR);
1836 mono_mb_emit_i4 (mb, 0);
1838 /* else [target == null] call this->method_ptr static */
1839 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1841 for (i = 0; i < sig->param_count; ++i)
1842 mono_mb_emit_ldarg (mb, i + 1);
1843 mono_mb_emit_ldarg (mb, 0);
1844 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1845 mono_mb_emit_byte (mb, CEE_LDIND_I );
1846 mono_mb_emit_byte (mb, CEE_CALLI);
1847 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
1850 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
1851 mono_mb_emit_byte (mb, CEE_RET);
1853 res = mono_mb_create_and_cache (cache, sig,
1854 mb, sig, sig->param_count + 16);
1860 gint mono_marshal_runtime_glist_find_klass (gconstpointer a, gconstpointer b)
1862 return !(((MonoMethod *)a)->klass == ((MonoMethod *)b)->klass);
1866 * generates IL code for the runtime invoke function
1867 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
1869 * we also catch exceptions if exc != null
1872 mono_marshal_get_runtime_invoke (MonoMethod *method)
1874 MonoMethodSignature *sig, *csig, *callsig;
1875 MonoExceptionClause *clause;
1876 MonoMethodHeader *header;
1877 MonoMethodBuilder *mb;
1878 GHashTable *cache = NULL;
1879 MonoClass *target_klass;
1880 MonoMethod *res = NULL;
1881 GSList *list = NULL;
1883 static MonoString *string_dummy = NULL;
1886 gboolean list_lookup = FALSE;
1890 target_klass = method->klass;
1892 if (method->string_ctor) {
1893 static MonoMethodSignature *strsig = NULL;
1895 strsig = mono_metadata_signature_dup (method->signature);
1896 strsig->ret = &mono_defaults.string_class->byval_arg;
1902 callsig = method->signature;
1904 if (method->signature->hasthis && method->klass->valuetype)
1907 cache = method->klass->image->runtime_invoke_cache;
1909 /* from mono_marshal_find_in_cache */
1910 EnterCriticalSection (&marshal_mutex);
1911 list = g_hash_table_lookup (cache, callsig);
1912 LeaveCriticalSection (&marshal_mutex);
1916 return (MonoMethod *)list->data;
1918 /* lookup the wrapper for our class */
1919 item = g_slist_find_custom (list, method->klass, mono_marshal_runtime_glist_find_klass);
1921 return (MonoMethod *)item->data;
1925 /* place runtime_invoke method in object class instead of random class */
1926 target_klass = mono_defaults.object_class;
1928 /* to make it work with our special string constructors */
1930 string_dummy = mono_string_new_wrapper ("dummy");
1932 sig = method->signature;
1934 csig = mono_metadata_signature_alloc (method->klass->image, 4);
1936 csig->ret = &mono_defaults.object_class->byval_arg;
1937 csig->params [0] = &mono_defaults.object_class->byval_arg;
1938 csig->params [1] = &mono_defaults.int_class->byval_arg;
1939 csig->params [2] = &mono_defaults.int_class->byval_arg;
1940 csig->params [3] = &mono_defaults.int_class->byval_arg;
1942 name = mono_signature_to_name (callsig, "runtime_invoke");
1943 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
1946 /* allocate local 0 (object) tmp */
1947 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1948 /* allocate local 1 (object) exc */
1949 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1951 /* cond set *exc to null */
1952 mono_mb_emit_byte (mb, CEE_LDARG_2);
1953 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1954 mono_mb_emit_byte (mb, 3);
1955 mono_mb_emit_byte (mb, CEE_LDARG_2);
1956 mono_mb_emit_byte (mb, CEE_LDNULL);
1957 mono_mb_emit_byte (mb, CEE_STIND_I);
1960 if (method->string_ctor) {
1961 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1962 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1963 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
1965 mono_mb_emit_ldarg (mb, 0);
1966 if (method->klass->valuetype) {
1967 mono_mb_emit_byte (mb, CEE_UNBOX);
1968 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method->klass));
1973 for (i = 0; i < sig->param_count; i++) {
1974 MonoType *t = sig->params [i];
1977 mono_mb_emit_ldarg (mb, 1);
1979 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
1980 mono_mb_emit_byte (mb, CEE_ADD);
1982 mono_mb_emit_byte (mb, CEE_LDIND_I);
1987 type = sig->params [i]->type;
1991 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1993 case MONO_TYPE_BOOLEAN:
1995 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1998 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2001 case MONO_TYPE_CHAR:
2002 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2006 mono_mb_emit_byte (mb, CEE_LDIND_I);
2009 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2012 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2015 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2018 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2022 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2024 case MONO_TYPE_STRING:
2025 case MONO_TYPE_CLASS:
2026 case MONO_TYPE_ARRAY:
2028 case MONO_TYPE_SZARRAY:
2029 case MONO_TYPE_OBJECT:
2032 case MONO_TYPE_VALUETYPE:
2033 if (t->data.klass->enumtype) {
2034 type = t->data.klass->enum_basetype->type;
2037 mono_mb_emit_byte (mb, CEE_LDOBJ);
2038 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2041 g_assert_not_reached ();
2045 mono_mb_emit_ldarg (mb, 3);
2046 mono_mb_emit_calli (mb, callsig);
2048 if (sig->ret->byref) {
2050 g_assert_not_reached ();
2054 switch (sig->ret->type) {
2055 case MONO_TYPE_VOID:
2056 if (!method->string_ctor)
2057 mono_mb_emit_byte (mb, CEE_LDNULL);
2059 case MONO_TYPE_BOOLEAN:
2060 case MONO_TYPE_CHAR:
2073 case MONO_TYPE_VALUETYPE:
2074 /* box value types */
2075 mono_mb_emit_byte (mb, CEE_BOX);
2076 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2078 case MONO_TYPE_STRING:
2079 case MONO_TYPE_CLASS:
2080 case MONO_TYPE_ARRAY:
2081 case MONO_TYPE_SZARRAY:
2082 case MONO_TYPE_OBJECT:
2087 g_assert_not_reached ();
2090 mono_mb_emit_stloc (mb, 0);
2092 mono_mb_emit_byte (mb, CEE_LEAVE);
2094 mono_mb_emit_i4 (mb, 0);
2096 clause = g_new0 (MonoExceptionClause, 1);
2097 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2098 clause->try_len = mb->pos;
2101 clause->token_or_filter = mb->pos;
2103 mono_mb_emit_byte (mb, CEE_POP);
2104 mono_mb_emit_byte (mb, CEE_LDARG_2);
2105 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2106 mono_mb_emit_byte (mb, CEE_PREFIX1);
2107 mono_mb_emit_byte (mb, CEE_CGT_UN);
2108 mono_mb_emit_byte (mb, CEE_PREFIX1);
2109 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2111 clause->handler_offset = mb->pos;
2114 /* store exception */
2115 mono_mb_emit_stloc (mb, 1);
2117 mono_mb_emit_byte (mb, CEE_LDARG_2);
2118 mono_mb_emit_ldloc (mb, 1);
2119 mono_mb_emit_byte (mb, CEE_STIND_I);
2121 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2122 mono_mb_emit_stloc (mb, 0);
2124 mono_mb_emit_byte (mb, CEE_LEAVE);
2125 mono_mb_emit_i4 (mb, 0);
2127 clause->handler_len = mb->pos - clause->handler_offset;
2130 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2131 mono_mb_emit_ldloc (mb, 0);
2132 mono_mb_emit_byte (mb, CEE_RET);
2134 /* taken from mono_mb_create_and_cache */
2135 EnterCriticalSection (&marshal_mutex);
2137 list = g_hash_table_lookup (cache, callsig);
2139 /* Somebody may have created it before us */
2140 /* we use the list_lookup flag to be a bit smarter */
2142 /* check if someone has created our wrapper, or just one with the same signature */
2143 item = g_slist_find_custom (list, method->klass, mono_marshal_runtime_glist_find_klass);
2145 res = (MonoMethod *) item->data;
2146 else /* we didn't find our wrapper */
2149 res = (MonoMethod *) list->data;
2152 if (!list || (list_lookup && list && !res)) {
2153 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2155 /* we add the wrapper to a slist and put that into value */
2156 list = g_slist_append (list, res);
2157 g_hash_table_insert (cache, callsig, list);
2158 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2161 LeaveCriticalSection (&marshal_mutex);
2162 /* end mono_mb_create_and_cache */
2166 header = ((MonoMethodNormal *)res)->header;
2167 header->num_clauses = 1;
2168 header->clauses = clause;
2174 * generates IL code to call managed methods from unmanaged code
2177 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2179 MonoMethodSignature *sig, *csig;
2180 MonoMethodBuilder *mb;
2181 MonoClass *klass = NULL;
2184 int i, pos = 0, *tmp_locals;
2185 static MonoMethodSignature *alloc_sig = NULL;
2188 g_assert (method != NULL);
2189 g_assert (!method->signature->pinvoke);
2191 cache = method->klass->image->managed_wrapper_cache;
2192 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2195 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2197 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2198 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2199 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2200 alloc_sig->pinvoke = 1;
2204 /* fime: howto free that memory ? */
2207 sig = method->signature;
2209 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2211 /* allocate local 0 (pointer) src_ptr */
2212 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2213 /* allocate local 1 (pointer) dst_ptr */
2214 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2215 /* allocate local 2 (boolean) delete_old */
2216 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2218 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2219 /* allocate local 3 to store the return value */
2220 mono_mb_add_local (mb, sig->ret);
2223 mono_mb_emit_icon (mb, 0);
2224 mono_mb_emit_byte (mb, CEE_STLOC_2);
2226 /* we copy the signature, so that we can modify it */
2227 csig = mono_metadata_signature_dup (sig);
2231 #ifdef PLATFORM_WIN32
2233 * Under windows, delegates passed to native code must use the STDCALL
2234 * calling convention.
2236 csig->call_convention = MONO_CALL_STDCALL;
2239 /* fixme: howto handle this ? */
2243 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2244 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2245 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2250 g_assert_not_reached ();
2255 /* we first do all conversions */
2256 tmp_locals = alloca (sizeof (int) * sig->param_count);
2257 for (i = 0; i < sig->param_count; i ++) {
2258 MonoType *t = sig->params [i];
2259 MonoMarshalSpec *spec = mspecs [i + 1];
2263 /* Ensure that we have marshalling info for this param */
2264 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2266 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2269 MonoMethod *marshal_native_to_managed;
2270 MonoMethod *get_instance;
2272 /* FIXME: Call CleanUpNativeData after the call */
2274 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2275 g_assert (mtype != NULL);
2276 mklass = mono_class_from_mono_type (mtype);
2277 g_assert (mklass != NULL);
2279 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2280 g_assert (marshal_native_to_managed);
2281 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2282 g_assert (get_instance);
2285 case MONO_TYPE_CLASS:
2286 case MONO_TYPE_OBJECT:
2287 case MONO_TYPE_STRING:
2288 case MONO_TYPE_ARRAY:
2289 case MONO_TYPE_SZARRAY:
2293 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2295 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2297 mono_mb_emit_byte (mb, CEE_CALL);
2298 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2300 mono_mb_emit_ldarg (mb, i);
2302 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2303 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2305 mono_mb_emit_stloc (mb, tmp_locals [i]);
2308 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2309 g_assert_not_reached ();
2316 case MONO_TYPE_CLASS: {
2317 klass = t->data.klass;
2319 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2321 if (klass->delegate) {
2322 g_assert (!t->byref);
2323 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2324 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2325 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2326 mono_mb_emit_ldarg (mb, i);
2327 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2328 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
2329 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_FTN_DEL);
2330 mono_mb_emit_stloc (mb, tmp_locals [i]);
2334 /* FIXME: Raise a MarshalDirectiveException here */
2335 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2337 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2338 mono_mb_emit_byte (mb, CEE_LDNULL);
2339 mono_mb_emit_stloc (mb, tmp_locals [i]);
2344 mono_mb_emit_ldarg (mb, i);
2348 /* Check for NULL and raise an exception */
2349 mono_mb_emit_byte (mb, CEE_BRTRUE);
2351 mono_mb_emit_i4 (mb, 0);
2353 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2355 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2356 mono_mb_emit_ldarg (mb, i);
2357 mono_mb_emit_byte (mb, CEE_LDIND_I);
2360 mono_mb_emit_byte (mb, CEE_STLOC_0);
2362 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2363 mono_mb_emit_stloc (mb, tmp_locals [i]);
2365 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2366 mono_mb_emit_byte (mb, CEE_BRFALSE);
2368 mono_mb_emit_i4 (mb, 0);
2370 /* Create and set dst */
2371 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2372 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2373 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2374 mono_mb_emit_stloc (mb, tmp_locals [i]);
2375 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2376 mono_mb_emit_icon (mb, sizeof (MonoObject));
2377 mono_mb_emit_byte (mb, CEE_ADD);
2378 mono_mb_emit_byte (mb, CEE_STLOC_1);
2380 /* emit valuetype conversion code */
2381 emit_struct_conv (mb, klass, TRUE);
2383 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2386 case MONO_TYPE_VALUETYPE:
2388 klass = sig->params [i]->data.klass;
2389 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2390 klass->blittable || klass->enumtype)
2393 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2395 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2399 mono_mb_emit_ldarg (mb, i);
2401 mono_mb_emit_ldarg_addr (mb, i);
2402 mono_mb_emit_byte (mb, CEE_STLOC_0);
2405 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2406 mono_mb_emit_byte (mb, CEE_BRFALSE);
2408 mono_mb_emit_i4 (mb, 0);
2411 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2412 mono_mb_emit_byte (mb, CEE_STLOC_1);
2414 /* emit valuetype conversion code */
2415 emit_struct_conv (mb, klass, TRUE);
2418 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2420 case MONO_TYPE_STRING: {
2421 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2426 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2427 csig->params [i] = &mono_defaults.int_class->byval_arg;
2429 mono_mb_emit_ldarg (mb, i);
2430 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2431 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2434 case MONO_NATIVE_LPWSTR:
2435 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
2437 case MONO_NATIVE_LPSTR:
2438 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
2441 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2442 MonoException *exc = mono_get_exception_not_implemented (msg);
2445 mono_raise_exception (exc);
2449 mono_mb_emit_stloc (mb, tmp_locals [i]);
2452 case MONO_TYPE_ARRAY:
2453 case MONO_TYPE_SZARRAY:
2457 klass = mono_class_from_mono_type (t);
2459 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2460 csig->params [i] = &mono_defaults.int_class->byval_arg;
2462 g_warning ("array marshaling not implemented");
2463 g_assert_not_reached ();
2468 for (i = 0; i < sig->param_count; i++) {
2469 MonoType *t = sig->params [i];
2472 case MONO_TYPE_BOOLEAN:
2486 mono_mb_emit_ldarg (mb, i);
2488 case MONO_TYPE_STRING:
2490 mono_mb_emit_ldarg (mb, i);
2492 g_assert (tmp_locals [i]);
2493 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2496 case MONO_TYPE_CLASS:
2498 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2500 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2502 case MONO_TYPE_ARRAY:
2503 case MONO_TYPE_SZARRAY:
2504 case MONO_TYPE_OBJECT:
2506 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2508 mono_mb_emit_ldarg (mb, i);
2510 case MONO_TYPE_VALUETYPE:
2511 klass = sig->params [i]->data.klass;
2512 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2513 klass->blittable || klass->enumtype) {
2514 mono_mb_emit_ldarg (mb, i);
2518 g_assert (tmp_locals [i]);
2520 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2522 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2525 g_warning ("type 0x%02x unknown", t->type);
2526 g_assert_not_reached ();
2530 emit_thread_interrupt_checkpoint (mb);
2531 mono_mb_emit_managed_call (mb, method, NULL);
2533 /* Ensure that we have marshalling info for the return */
2534 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2536 if (!sig->ret->byref) {
2537 switch (sig->ret->type) {
2538 case MONO_TYPE_VOID:
2540 case MONO_TYPE_BOOLEAN:
2554 case MONO_TYPE_OBJECT:
2555 mono_mb_emit_byte (mb, CEE_STLOC_3);
2557 case MONO_TYPE_STRING:
2558 csig->ret = &mono_defaults.int_class->byval_arg;
2560 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2561 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
2562 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
2563 mono_mb_emit_byte (mb, CEE_STLOC_3);
2565 case MONO_TYPE_VALUETYPE:
2566 klass = sig->ret->data.klass;
2567 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2568 klass->blittable || klass->enumtype)
2571 /* load pointer to returned value type */
2572 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2573 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2575 /* store the address of the source into local variable 0 */
2576 mono_mb_emit_byte (mb, CEE_STLOC_0);
2577 /* allocate space for the native struct and
2578 * store the address into dst_ptr */
2579 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2580 g_assert (retobj_var);
2581 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2582 mono_mb_emit_byte (mb, CEE_CONV_I);
2583 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2584 emit_thread_interrupt_checkpoint (mb);
2585 mono_mb_emit_byte (mb, CEE_STLOC_1);
2586 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2587 mono_mb_emit_stloc (mb, retobj_var);
2589 /* emit valuetype conversion code */
2590 emit_struct_conv (mb, klass, FALSE);
2592 case MONO_TYPE_CLASS: {
2595 klass = sig->ret->data.klass;
2597 /* FIXME: Raise a MarshalDirectiveException here */
2598 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2600 mono_mb_emit_byte (mb, CEE_STLOC_0);
2601 /* Check for null */
2602 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2603 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2604 mono_mb_emit_byte (mb, CEE_LDNULL);
2605 mono_mb_emit_byte (mb, CEE_STLOC_3);
2606 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2608 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2611 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2612 mono_mb_emit_icon (mb, sizeof (MonoObject));
2613 mono_mb_emit_byte (mb, CEE_ADD);
2614 mono_mb_emit_byte (mb, CEE_STLOC_0);
2616 /* Allocate and set dest */
2617 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2618 mono_mb_emit_byte (mb, CEE_CONV_I);
2619 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2620 emit_thread_interrupt_checkpoint (mb);
2621 mono_mb_emit_byte (mb, CEE_DUP);
2622 mono_mb_emit_byte (mb, CEE_STLOC_1);
2623 mono_mb_emit_byte (mb, CEE_STLOC_3);
2625 emit_struct_conv (mb, klass, FALSE);
2627 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2631 g_warning ("return type 0x%02x unknown", sig->ret->type);
2632 g_assert_not_reached ();
2635 mono_mb_emit_byte (mb, CEE_STLOC_3);
2638 /* Convert byref arguments back */
2639 for (i = 0; i < sig->param_count; i ++) {
2640 MonoType *t = sig->params [i];
2646 case MONO_TYPE_CLASS: {
2649 klass = t->data.klass;
2651 /* Check for null */
2652 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2653 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2654 mono_mb_emit_ldarg (mb, i);
2655 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2656 mono_mb_emit_byte (mb, CEE_STIND_I);
2657 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2659 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2662 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2663 mono_mb_emit_icon (mb, sizeof (MonoObject));
2664 mono_mb_emit_byte (mb, CEE_ADD);
2665 mono_mb_emit_byte (mb, CEE_STLOC_0);
2667 /* Allocate and set dest */
2668 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2669 mono_mb_emit_byte (mb, CEE_CONV_I);
2670 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2671 emit_thread_interrupt_checkpoint (mb);
2672 mono_mb_emit_byte (mb, CEE_STLOC_1);
2674 /* Update argument pointer */
2675 mono_mb_emit_ldarg (mb, i);
2676 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2677 mono_mb_emit_byte (mb, CEE_STIND_I);
2679 /* emit valuetype conversion code */
2680 emit_struct_conv (mb, klass, FALSE);
2682 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2685 case MONO_TYPE_VALUETYPE: {
2688 klass = t->data.klass;
2690 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2691 klass->blittable || klass->enumtype) {
2695 /* Check for null */
2696 mono_mb_emit_ldarg (mb, i);
2697 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2700 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2701 mono_mb_emit_byte (mb, CEE_STLOC_0);
2704 mono_mb_emit_ldarg (mb, i);
2705 mono_mb_emit_byte (mb, CEE_STLOC_1);
2707 /* emit valuetype conversion code */
2708 emit_struct_conv (mb, klass, FALSE);
2710 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2717 mono_mb_emit_ldloc (mb, retobj_var);
2718 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2719 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2720 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2723 if (!MONO_TYPE_IS_VOID(sig->ret))
2724 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2725 mono_mb_emit_byte (mb, CEE_RET);
2729 res = mono_mb_create_and_cache (cache, method,
2730 mb, csig, sig->param_count + 16);
2732 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2735 //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));
2741 * mono_marshal_get_ldfld_wrapper:
2742 * @type: the type of the field
2744 * This method generates a function which can be use to load a field with type
2745 * @type from an object. The generated function has the following signature:
2746 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
2749 mono_marshal_get_ldfld_wrapper (MonoType *type)
2751 MonoMethodSignature *sig, *csig;
2752 MonoMethodBuilder *mb;
2755 static GHashTable *ldfld_hash = NULL;
2757 int t, pos0, pos1 = 0;
2762 if (type->type == MONO_TYPE_SZARRAY) {
2763 klass = mono_defaults.array_class;
2764 } else if (type->type == MONO_TYPE_VALUETYPE) {
2765 klass = type->data.klass;
2766 if (klass->enumtype) {
2767 t = klass->enum_basetype->type;
2768 klass = mono_class_from_mono_type (klass->enum_basetype);
2770 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2771 t == MONO_TYPE_CLASS) {
2772 klass = mono_defaults.object_class;
2773 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2774 klass = mono_defaults.int_class;
2776 klass = mono_class_from_mono_type (type);
2779 klass = mono_defaults.int_class;
2782 EnterCriticalSection (&marshal_mutex);
2784 ldfld_hash = g_hash_table_new (NULL, NULL);
2785 res = g_hash_table_lookup (ldfld_hash, klass);
2786 LeaveCriticalSection (&marshal_mutex);
2790 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
2791 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
2794 mb->method->save_lmf = 1;
2796 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2797 sig->params [0] = &mono_defaults.object_class->byval_arg;
2798 sig->params [1] = &mono_defaults.int_class->byval_arg;
2799 sig->params [2] = &mono_defaults.int_class->byval_arg;
2800 sig->params [3] = &mono_defaults.int_class->byval_arg;
2801 sig->ret = &klass->byval_arg;
2803 mono_mb_emit_ldarg (mb, 0);
2804 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2806 mono_mb_emit_ldarg (mb, 0);
2807 mono_mb_emit_ldarg (mb, 1);
2808 mono_mb_emit_ldarg (mb, 2);
2810 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
2811 csig->params [0] = &mono_defaults.object_class->byval_arg;
2812 csig->params [1] = &mono_defaults.int_class->byval_arg;
2813 csig->params [2] = &mono_defaults.int_class->byval_arg;
2814 csig->ret = &klass->this_arg;
2817 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
2818 emit_thread_interrupt_checkpoint (mb);
2820 if (klass->valuetype) {
2821 mono_mb_emit_byte (mb, CEE_UNBOX);
2822 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2823 mono_mb_emit_byte (mb, CEE_BR);
2825 mono_mb_emit_i4 (mb, 0);
2827 mono_mb_emit_byte (mb, CEE_RET);
2831 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2833 mono_mb_emit_ldarg (mb, 0);
2834 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2835 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2836 mono_mb_emit_ldarg (mb, 3);
2837 mono_mb_emit_byte (mb, CEE_ADD);
2839 if (klass->valuetype)
2840 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2845 case MONO_TYPE_BOOLEAN:
2846 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2848 case MONO_TYPE_CHAR:
2851 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2855 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2859 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2862 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2865 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2867 case MONO_TYPE_ARRAY:
2869 case MONO_TYPE_FNPTR:
2870 case MONO_TYPE_SZARRAY:
2871 case MONO_TYPE_OBJECT:
2872 case MONO_TYPE_CLASS:
2873 case MONO_TYPE_STRING:
2876 mono_mb_emit_byte (mb, CEE_LDIND_I);
2878 case MONO_TYPE_VALUETYPE:
2879 g_assert (!klass->enumtype);
2880 mono_mb_emit_byte (mb, CEE_LDOBJ);
2881 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2884 g_warning ("type %x not implemented", type->type);
2885 g_assert_not_reached ();
2888 mono_mb_emit_byte (mb, CEE_RET);
2890 res = mono_mb_create_and_cache (ldfld_hash, klass,
2891 mb, sig, sig->param_count + 16);
2898 * mono_marshal_get_stfld_wrapper:
2899 * @type: the type of the field
2901 * This method generates a function which can be use to store a field with type
2902 * @type. The generated function has the following signature:
2903 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
2906 mono_marshal_get_stfld_wrapper (MonoType *type)
2908 MonoMethodSignature *sig, *csig;
2909 MonoMethodBuilder *mb;
2912 static GHashTable *stfld_hash = NULL;
2919 if (type->type == MONO_TYPE_SZARRAY) {
2920 klass = mono_defaults.array_class;
2921 } else if (type->type == MONO_TYPE_VALUETYPE) {
2922 klass = type->data.klass;
2923 if (klass->enumtype) {
2924 t = klass->enum_basetype->type;
2925 klass = mono_class_from_mono_type (klass->enum_basetype);
2927 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2928 t == MONO_TYPE_CLASS) {
2929 klass = mono_defaults.object_class;
2930 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2931 klass = mono_defaults.int_class;
2933 klass = mono_class_from_mono_type (type);
2936 klass = mono_defaults.int_class;
2939 EnterCriticalSection (&marshal_mutex);
2941 stfld_hash = g_hash_table_new (NULL, NULL);
2942 res = g_hash_table_lookup (stfld_hash, klass);
2943 LeaveCriticalSection (&marshal_mutex);
2947 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
2948 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
2951 mb->method->save_lmf = 1;
2953 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
2954 sig->params [0] = &mono_defaults.object_class->byval_arg;
2955 sig->params [1] = &mono_defaults.int_class->byval_arg;
2956 sig->params [2] = &mono_defaults.int_class->byval_arg;
2957 sig->params [3] = &mono_defaults.int_class->byval_arg;
2958 sig->params [4] = &klass->byval_arg;
2959 sig->ret = &mono_defaults.void_class->byval_arg;
2961 mono_mb_emit_ldarg (mb, 0);
2962 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2964 mono_mb_emit_ldarg (mb, 0);
2965 mono_mb_emit_ldarg (mb, 1);
2966 mono_mb_emit_ldarg (mb, 2);
2967 mono_mb_emit_ldarg (mb, 4);
2969 if (klass->valuetype) {
2970 mono_mb_emit_byte (mb, CEE_BOX);
2971 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2974 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2975 csig->params [0] = &mono_defaults.object_class->byval_arg;
2976 csig->params [1] = &mono_defaults.int_class->byval_arg;
2977 csig->params [2] = &mono_defaults.int_class->byval_arg;
2978 csig->params [3] = &klass->this_arg;
2979 csig->ret = &mono_defaults.void_class->byval_arg;
2982 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
2983 emit_thread_interrupt_checkpoint (mb);
2985 mono_mb_emit_byte (mb, CEE_RET);
2987 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2989 mono_mb_emit_ldarg (mb, 0);
2990 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2991 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2992 mono_mb_emit_ldarg (mb, 3);
2993 mono_mb_emit_byte (mb, CEE_ADD);
2994 mono_mb_emit_ldarg (mb, 4);
2999 case MONO_TYPE_BOOLEAN:
3000 mono_mb_emit_byte (mb, CEE_STIND_I1);
3002 case MONO_TYPE_CHAR:
3005 mono_mb_emit_byte (mb, CEE_STIND_I2);
3009 mono_mb_emit_byte (mb, CEE_STIND_I4);
3013 mono_mb_emit_byte (mb, CEE_STIND_I8);
3016 mono_mb_emit_byte (mb, CEE_STIND_R4);
3019 mono_mb_emit_byte (mb, CEE_STIND_R8);
3021 case MONO_TYPE_ARRAY:
3023 case MONO_TYPE_FNPTR:
3024 case MONO_TYPE_SZARRAY:
3025 case MONO_TYPE_OBJECT:
3026 case MONO_TYPE_CLASS:
3027 case MONO_TYPE_STRING:
3030 mono_mb_emit_byte (mb, CEE_STIND_I);
3032 case MONO_TYPE_VALUETYPE:
3033 g_assert (!klass->enumtype);
3034 mono_mb_emit_byte (mb, CEE_STOBJ);
3035 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3038 g_warning ("type %x not implemented", type->type);
3039 g_assert_not_reached ();
3042 mono_mb_emit_byte (mb, CEE_RET);
3044 res = mono_mb_create_and_cache (stfld_hash, klass,
3045 mb, sig, sig->param_count + 16);
3052 * generates IL code for the icall wrapper (the generated method
3053 * calls the unmanaged code in func)
3056 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3058 MonoMethodSignature *csig;
3059 MonoMethodBuilder *mb;
3063 g_assert (sig->pinvoke);
3065 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3067 mb->method->save_lmf = 1;
3069 /* we copy the signature, so that we can modify it */
3072 mono_mb_emit_byte (mb, CEE_LDARG_0);
3074 for (i = 0; i < sig->param_count; i++)
3075 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3077 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3078 emit_thread_interrupt_checkpoint (mb);
3079 mono_mb_emit_byte (mb, CEE_RET);
3081 csig = mono_metadata_signature_dup (sig);
3084 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3091 * mono_marshal_get_native_wrapper:
3092 * @method: The MonoMethod to wrap.
3094 * generates IL code for the pinvoke wrapper (the generated method
3095 * calls the unmanaged code in method->addr)
3098 mono_marshal_get_native_wrapper (MonoMethod *method)
3100 MonoMethodSignature *sig, *csig;
3101 MonoMethodPInvoke *piinfo;
3102 MonoMethodBuilder *mb;
3103 MonoMarshalSpec **mspecs;
3107 gboolean pinvoke = FALSE;
3108 int i, pos, argnum, *tmp_locals;
3110 const char *exc_class = "MissingMethodException";
3111 const char *exc_arg = NULL;
3113 g_assert (method != NULL);
3114 g_assert (method->signature->pinvoke);
3116 cache = method->klass->image->native_wrapper_cache;
3117 if ((res = mono_marshal_find_in_cache (cache, method)))
3120 sig = method->signature;
3122 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3123 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3126 if (!method->addr) {
3128 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
3130 method->addr = mono_lookup_internal_call (method);
3133 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3135 mb->method->save_lmf = 1;
3137 piinfo = (MonoMethodPInvoke *)method;
3139 if (!method->addr) {
3140 mono_mb_emit_exception (mb, exc_class, exc_arg);
3141 csig = mono_metadata_signature_dup (sig);
3143 res = mono_mb_create_and_cache (cache, method,
3144 mb, csig, csig->param_count + 16);
3149 /* internal calls: we simply push all arguments and call the method (no conversions) */
3150 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3152 /* hack - string constructors returns a value */
3153 if (method->string_ctor) {
3154 csig = mono_metadata_signature_dup (sig);
3155 csig->ret = &mono_defaults.string_class->byval_arg;
3160 mono_mb_emit_byte (mb, CEE_LDARG_0);
3162 for (i = 0; i < sig->param_count; i++)
3163 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3165 g_assert (method->addr);
3166 mono_mb_emit_native_call (mb, csig, method->addr);
3167 emit_thread_interrupt_checkpoint (mb);
3168 mono_mb_emit_byte (mb, CEE_RET);
3170 csig = mono_metadata_signature_dup (csig);
3172 res = mono_mb_create_and_cache (cache, method,
3173 mb, csig, csig->param_count + 16);
3180 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
3181 mono_method_get_marshal_info (method, mspecs);
3183 /* pinvoke: we need to convert the arguments if necessary */
3185 /* we copy the signature, so that we can set pinvoke to 0 */
3186 csig = mono_metadata_signature_dup (sig);
3189 /* we allocate local for use with emit_struct_conv() */
3190 /* allocate local 0 (pointer) src_ptr */
3191 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3192 /* allocate local 1 (pointer) dst_ptr */
3193 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3194 /* allocate local 2 (boolean) delete_old */
3195 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3197 /* delete_old = FALSE */
3198 mono_mb_emit_icon (mb, 0);
3199 mono_mb_emit_byte (mb, CEE_STLOC_2);
3201 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3202 /* allocate local 3 to store the return value */
3203 mono_mb_add_local (mb, sig->ret);
3206 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3207 /* Return type custom marshaling */
3209 * Since we can't determine the return type of the unmanaged function,
3210 * we assume it returns a pointer, and pass that pointer to
3211 * MarshalNativeToManaged.
3213 csig->ret = &mono_defaults.int_class->byval_arg;
3216 /* we first do all conversions */
3217 tmp_locals = alloca (sizeof (int) * sig->param_count);
3219 for (i = 0; i < sig->param_count; i ++) {
3220 MonoType *t = sig->params [i];
3221 MonoMarshalSpec *spec = mspecs [i + 1];
3223 argnum = i + sig->hasthis;
3226 /* Ensure that we have marshalling info for this param */
3227 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3229 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3232 MonoMethod *marshal_managed_to_native;
3233 MonoMethod *get_instance;
3235 /* FIXME: Call CleanUpNativeData after the call */
3237 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3238 g_assert (mtype != NULL);
3239 mklass = mono_class_from_mono_type (mtype);
3240 g_assert (mklass != NULL);
3242 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3243 g_assert (marshal_managed_to_native);
3244 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3245 g_assert (get_instance);
3248 case MONO_TYPE_CLASS:
3249 case MONO_TYPE_OBJECT:
3250 case MONO_TYPE_STRING:
3251 case MONO_TYPE_ARRAY:
3252 case MONO_TYPE_SZARRAY:
3253 case MONO_TYPE_VALUETYPE:
3257 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3259 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3261 mono_mb_emit_byte (mb, CEE_CALL);
3262 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3264 mono_mb_emit_ldarg (mb, argnum);
3266 if (t->type == MONO_TYPE_VALUETYPE) {
3268 * Since we can't determine the type of the argument, we
3269 * will assume the unmanaged function takes a pointer.
3271 csig->params [i] = &mono_defaults.int_class->byval_arg;
3273 mono_mb_emit_byte (mb, CEE_BOX);
3274 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3277 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3278 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3280 mono_mb_emit_stloc (mb, tmp_locals [i]);
3284 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3285 g_assert_not_reached ();
3291 if (spec && spec->native == MONO_NATIVE_ASANY) {
3292 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3294 g_assert (t->type == MONO_TYPE_OBJECT);
3295 g_assert (!t->byref);
3297 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3298 mono_mb_emit_ldarg (mb, argnum);
3299 mono_mb_emit_icon (mb, encoding);
3300 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3301 mono_mb_emit_byte (mb, CEE_MONO_FUNC2);
3302 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ASANY);
3303 mono_mb_emit_stloc (mb, tmp_locals [i]);
3308 case MONO_TYPE_VALUETYPE:
3309 klass = t->data.klass;
3311 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3312 klass->blittable || klass->enumtype)
3315 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3317 /* store the address of the source into local variable 0 */
3319 mono_mb_emit_ldarg (mb, argnum);
3321 mono_mb_emit_ldarg_addr (mb, argnum);
3323 mono_mb_emit_byte (mb, CEE_STLOC_0);
3325 /* allocate space for the native struct and
3326 * store the address into local variable 1 (dest) */
3327 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3328 mono_mb_emit_byte (mb, CEE_PREFIX1);
3329 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3330 mono_mb_emit_stloc (mb, tmp_locals [i]);
3333 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3334 mono_mb_emit_byte (mb, CEE_BRFALSE);
3336 mono_mb_emit_i4 (mb, 0);
3340 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3341 mono_mb_emit_byte (mb, CEE_STLOC_1);
3343 /* emit valuetype conversion code */
3344 emit_struct_conv (mb, klass, FALSE);
3347 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3349 case MONO_TYPE_STRING: {
3350 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3352 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3353 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3356 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3359 mono_mb_emit_ldarg (mb, argnum);
3360 mono_mb_emit_byte (mb, CEE_LDIND_I);
3362 mono_mb_emit_ldarg (mb, argnum);
3365 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3366 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3369 case MONO_NATIVE_LPWSTR:
3370 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPWSTR);
3372 case MONO_NATIVE_LPSTR:
3373 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPSTR);
3375 case MONO_NATIVE_LPTSTR:
3376 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STR_LPTSTR);
3379 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3380 MonoException *exc = mono_get_exception_not_implemented (msg);
3383 mono_raise_exception (exc);
3387 mono_mb_emit_stloc (mb, tmp_locals [i]);
3390 case MONO_TYPE_CLASS:
3391 case MONO_TYPE_OBJECT:
3392 klass = t->data.klass;
3394 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3395 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3397 if (klass->delegate) {
3398 g_assert (!t->byref);
3399 mono_mb_emit_ldarg (mb, argnum);
3400 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3401 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3402 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_DEL_FTN);
3403 mono_mb_emit_stloc (mb, tmp_locals [i]);
3404 } else if (klass == mono_defaults.stringbuilder_class) {
3405 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3407 g_assert (!t->byref);
3408 mono_mb_emit_ldarg (mb, argnum);
3409 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3410 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3413 case MONO_NATIVE_LPWSTR:
3414 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPWSTR);
3416 case MONO_NATIVE_LPSTR:
3417 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPSTR);
3419 case MONO_NATIVE_LPTSTR:
3420 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_SB_LPTSTR);
3423 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3424 MonoException *exc = mono_get_exception_not_implemented (msg);
3427 mono_raise_exception (exc);
3431 mono_mb_emit_stloc (mb, tmp_locals [i]);
3433 mono_mb_emit_byte (mb, CEE_LDNULL);
3434 mono_mb_emit_stloc (mb, tmp_locals [i]);
3437 /* we dont need any conversions for out parameters */
3438 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3441 mono_mb_emit_ldarg (mb, argnum);
3442 mono_mb_emit_byte (mb, CEE_LDIND_I);
3445 mono_mb_emit_ldarg (mb, argnum);
3446 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3447 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3450 /* store the address of the source into local variable 0 */
3451 mono_mb_emit_byte (mb, CEE_STLOC_0);
3452 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3453 mono_mb_emit_byte (mb, CEE_BRFALSE);
3455 mono_mb_emit_i4 (mb, 0);
3457 /* allocate space for the native struct and store the address */
3458 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3459 mono_mb_emit_byte (mb, CEE_PREFIX1);
3460 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3461 mono_mb_emit_stloc (mb, tmp_locals [i]);
3463 /* set the src_ptr */
3464 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3465 mono_mb_emit_icon (mb, sizeof (MonoObject));
3466 mono_mb_emit_byte (mb, CEE_ADD);
3467 mono_mb_emit_byte (mb, CEE_STLOC_0);
3470 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3471 mono_mb_emit_byte (mb, CEE_STLOC_1);
3473 /* emit valuetype conversion code */
3474 emit_struct_conv (mb, klass, FALSE);
3476 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3480 case MONO_TYPE_ARRAY:
3481 case MONO_TYPE_SZARRAY:
3485 klass = mono_class_from_mono_type (t);
3487 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3488 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3490 if (klass->element_class == mono_defaults.string_class) {
3491 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3493 mono_mb_emit_ldarg (mb, argnum);
3494 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3495 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3498 case MONO_NATIVE_LPWSTR:
3499 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRWLPARRAY);
3501 case MONO_NATIVE_LPSTR:
3502 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY);
3505 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3506 MonoException *exc = mono_get_exception_not_implemented (msg);
3509 mono_raise_exception (exc);
3512 mono_mb_emit_stloc (mb, tmp_locals [i]);
3514 else if (klass->element_class->blittable) {
3515 mono_mb_emit_ldarg (mb, argnum);
3516 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3517 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3519 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_ARRAY_LPARRAY);
3520 mono_mb_emit_stloc (mb, tmp_locals [i]);
3524 guint32 label1, label2, label3;
3525 int index_var, dest_ptr;
3527 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3530 mono_mb_emit_ldarg (mb, argnum);
3531 mono_mb_emit_stloc (mb, tmp_locals [i]);
3532 mono_mb_emit_ldarg (mb, argnum);
3533 mono_mb_emit_byte (mb, CEE_BRFALSE);
3535 mono_mb_emit_i4 (mb, 0);
3537 /* allocate space for the native struct and store the address */
3538 eklass = klass->element_class;
3539 mono_mb_emit_icon (mb, mono_class_native_size (eklass, NULL));
3540 mono_mb_emit_ldarg (mb, argnum);
3541 mono_mb_emit_byte (mb, CEE_LDLEN);
3542 mono_mb_emit_byte (mb, CEE_MUL);
3543 mono_mb_emit_byte (mb, CEE_PREFIX1);
3544 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3545 mono_mb_emit_stloc (mb, tmp_locals [i]);
3547 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3548 mono_mb_emit_stloc (mb, dest_ptr);
3550 /* Emit marshalling loop */
3551 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3552 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3553 mono_mb_emit_stloc (mb, index_var);
3555 mono_mb_emit_ldloc (mb, index_var);
3556 mono_mb_emit_ldarg (mb, argnum);
3557 mono_mb_emit_byte (mb, CEE_LDLEN);
3558 mono_mb_emit_byte (mb, CEE_BGE);
3560 mono_mb_emit_i4 (mb, 0);
3562 /* Emit marshalling code */
3564 /* set the src_ptr */
3565 mono_mb_emit_ldarg (mb, argnum);
3566 mono_mb_emit_ldloc (mb, index_var);
3567 mono_mb_emit_byte (mb, CEE_LDELEMA);
3568 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3569 mono_mb_emit_byte (mb, CEE_STLOC_0);
3572 mono_mb_emit_ldloc (mb, dest_ptr);
3573 mono_mb_emit_byte (mb, CEE_STLOC_1);
3575 /* emit valuetype conversion code */
3576 emit_struct_conv (mb, eklass, FALSE);
3578 mono_mb_emit_add_to_local (mb, index_var, 1);
3579 mono_mb_emit_add_to_local (mb, dest_ptr, mono_class_native_size (eklass, NULL));
3581 mono_mb_emit_byte (mb, CEE_BR);
3582 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3584 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3585 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3589 case MONO_TYPE_BOOLEAN: {
3590 MonoType *local_type;
3591 int variant_bool = 0;
3595 local_type = &mono_defaults.int32_class->byval_arg;
3597 switch (spec->native) {
3598 case MONO_NATIVE_I1:
3599 local_type = &mono_defaults.byte_class->byval_arg;
3601 case MONO_NATIVE_VARIANTBOOL:
3602 local_type = &mono_defaults.int16_class->byval_arg;
3606 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3610 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3611 tmp_locals [i] = mono_mb_add_local (mb, local_type);
3612 mono_mb_emit_ldarg (mb, argnum);
3613 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3615 mono_mb_emit_byte (mb, CEE_NEG);
3616 mono_mb_emit_stloc (mb, tmp_locals [i]);
3622 /* push all arguments */
3625 mono_mb_emit_byte (mb, CEE_LDARG_0);
3627 for (i = 0; i < sig->param_count; i++) {
3628 MonoType *t = sig->params [i];
3629 MonoMarshalSpec *spec = mspecs [i + 1];
3631 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3632 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3635 if (spec && spec->native == MONO_NATIVE_ASANY) {
3636 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3639 argnum = i + sig->hasthis;
3642 case MONO_TYPE_BOOLEAN:
3644 g_assert (tmp_locals [i]);
3645 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3647 mono_mb_emit_ldarg (mb, argnum);
3662 mono_mb_emit_ldarg (mb, argnum);
3664 case MONO_TYPE_VALUETYPE:
3665 klass = sig->params [i]->data.klass;
3666 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3667 klass->blittable || klass->enumtype) {
3668 mono_mb_emit_ldarg (mb, argnum);
3671 g_assert (tmp_locals [i]);
3672 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3675 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3676 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3679 case MONO_TYPE_STRING:
3680 case MONO_TYPE_CLASS:
3681 case MONO_TYPE_OBJECT:
3682 g_assert (tmp_locals [i]);
3684 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3686 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3688 case MONO_TYPE_CHAR:
3689 /* fixme: dont know how to marshal that. We cant simply
3690 * convert it to a one byte UTF8 character, because an
3691 * unicode character may need more that one byte in UTF8 */
3692 mono_mb_emit_ldarg (mb, argnum);
3694 case MONO_TYPE_ARRAY:
3695 case MONO_TYPE_SZARRAY:
3697 mono_mb_emit_ldarg (mb, argnum);
3699 g_assert (tmp_locals [i]);
3700 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3703 case MONO_TYPE_TYPEDBYREF:
3704 case MONO_TYPE_FNPTR:
3706 g_warning ("type 0x%02x unknown", t->type);
3707 g_assert_not_reached ();
3712 /* call the native method */
3713 mono_mb_emit_native_call (mb, csig, method->addr);
3715 /* Set LastError if needed */
3716 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
3717 MonoMethodSignature *lasterr_sig;
3719 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3720 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
3721 lasterr_sig->pinvoke = 1;
3723 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
3726 /* Ensure that we have marshalling info for the return */
3727 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3729 /* convert the result */
3730 if (!sig->ret->byref) {
3731 MonoMarshalSpec *spec = mspecs [0];
3732 type = sig->ret->type;
3734 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3737 MonoMethod *marshal_native_to_managed;
3738 MonoMethod *get_instance;
3740 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3741 g_assert (mtype != NULL);
3742 mklass = mono_class_from_mono_type (mtype);
3743 g_assert (mklass != NULL);
3745 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3746 g_assert (marshal_native_to_managed);
3747 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3748 g_assert (get_instance);
3751 case MONO_TYPE_CLASS:
3752 case MONO_TYPE_OBJECT:
3753 case MONO_TYPE_STRING:
3754 case MONO_TYPE_ARRAY:
3755 case MONO_TYPE_SZARRAY:
3756 case MONO_TYPE_VALUETYPE:
3757 if (type == MONO_TYPE_VALUETYPE) {
3758 /* local 3 can't hold a pointer */
3759 mono_mb_emit_byte (mb, CEE_STLOC_0);
3762 mono_mb_emit_byte (mb, CEE_STLOC_3);
3764 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3766 mono_mb_emit_byte (mb, CEE_CALL);
3767 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3769 if (type == MONO_TYPE_VALUETYPE)
3770 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3772 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3774 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3775 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3777 if (type == MONO_TYPE_VALUETYPE) {
3778 mono_mb_emit_byte (mb, CEE_UNBOX);
3779 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3781 mono_mb_emit_byte (mb, CEE_STLOC_3);
3784 g_warning ("custom marshalling of type %x is currently not supported", type);
3785 g_assert_not_reached ();
3792 case MONO_TYPE_VOID:
3807 /* no conversions necessary */
3808 mono_mb_emit_byte (mb, CEE_STLOC_3);
3810 case MONO_TYPE_BOOLEAN:
3811 /* maybe we need to make sure that it fits within 8 bits */
3812 mono_mb_emit_byte (mb, CEE_STLOC_3);
3814 case MONO_TYPE_VALUETYPE:
3815 klass = sig->ret->data.klass;
3816 if (klass->enumtype) {
3817 type = sig->ret->data.klass->enum_basetype->type;
3821 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3823 mono_mb_emit_byte (mb, CEE_STLOC_3);
3826 /* load pointer to returned value type */
3827 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3828 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3829 /* store the address of the source into local variable 0 */
3830 mono_mb_emit_byte (mb, CEE_STLOC_0);
3832 mono_mb_emit_ldloc_addr (mb, 3);
3833 mono_mb_emit_byte (mb, CEE_STLOC_1);
3835 /* emit valuetype conversion code */
3836 emit_struct_conv (mb, sig->ret->data.klass, TRUE);
3838 case MONO_TYPE_STRING:
3839 mono_mb_emit_byte (mb, CEE_STLOC_0);
3840 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3842 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3843 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3845 switch (spec->native) {
3846 case MONO_NATIVE_LPWSTR:
3847 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_STR);
3850 g_warning ("marshalling conversion not implemented");
3851 g_assert_not_reached ();
3854 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3856 mono_mb_emit_byte (mb, CEE_STLOC_3);
3858 /* free the string */
3859 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3860 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3861 mono_mb_emit_byte (mb, CEE_MONO_FREE);
3863 case MONO_TYPE_CLASS:
3864 case MONO_TYPE_OBJECT:
3865 klass = sig->ret->data.klass;
3868 mono_mb_emit_byte (mb, CEE_STLOC_0);
3870 mono_mb_emit_byte (mb, CEE_LDNULL);
3871 mono_mb_emit_byte (mb, CEE_STLOC_3);
3874 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3875 mono_mb_emit_byte (mb, CEE_BRFALSE);
3877 mono_mb_emit_i4 (mb, 0);
3879 /* allocate result object */
3881 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3882 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3883 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3884 mono_mb_emit_byte (mb, CEE_STLOC_3);
3888 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3889 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3890 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3891 mono_mb_emit_icon (mb, sizeof (MonoObject));
3892 mono_mb_emit_byte (mb, CEE_ADD);
3893 mono_mb_emit_byte (mb, CEE_STLOC_1);
3895 /* emit conversion code */
3896 emit_struct_conv (mb, klass, TRUE);
3898 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3900 case MONO_TYPE_ARRAY:
3901 case MONO_TYPE_SZARRAY:
3902 /* fixme: we need conversions here */
3903 mono_mb_emit_byte (mb, CEE_STLOC_3);
3905 case MONO_TYPE_CHAR:
3906 /* fixme: we need conversions here */
3907 mono_mb_emit_byte (mb, CEE_STLOC_3);
3909 case MONO_TYPE_TYPEDBYREF:
3910 case MONO_TYPE_FNPTR:
3912 g_warning ("return type 0x%02x unknown", sig->ret->type);
3913 g_assert_not_reached ();
3917 mono_mb_emit_byte (mb, CEE_STLOC_3);
3921 * Need to call this after converting the result since MONO_VTADDR needs
3922 * to be adjacent to the call instruction.
3924 emit_thread_interrupt_checkpoint (mb);
3926 /* we need to convert byref arguments back and free string arrays */
3927 for (i = 0; i < sig->param_count; i++) {
3928 MonoType *t = sig->params [i];
3929 MonoMarshalSpec *spec = mspecs [i + 1];
3931 argnum = i + sig->hasthis;
3933 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3936 MonoMethod *get_instance;
3937 MonoMethod *cleanup_native;
3939 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3940 g_assert (mtype != NULL);
3941 mklass = mono_class_from_mono_type (mtype);
3942 g_assert (mklass != NULL);
3944 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3945 g_assert (get_instance);
3946 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3947 g_assert (get_instance);
3950 case MONO_TYPE_CLASS:
3951 case MONO_TYPE_OBJECT:
3952 case MONO_TYPE_STRING:
3953 case MONO_TYPE_ARRAY:
3954 case MONO_TYPE_SZARRAY:
3955 case MONO_TYPE_VALUETYPE:
3956 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3958 mono_mb_emit_byte (mb, CEE_CALL);
3959 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3961 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3963 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3964 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3969 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3970 g_assert_not_reached ();
3976 if (spec && spec->native == MONO_NATIVE_ASANY) {
3977 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3979 mono_mb_emit_ldarg (mb, argnum);
3980 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3981 mono_mb_emit_icon (mb, encoding);
3982 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3983 mono_mb_emit_byte (mb, CEE_MONO_PROC3);
3984 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ASANY);
3989 case MONO_TYPE_STRING:
3990 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3991 mono_mb_emit_ldarg (mb, argnum);
3992 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3993 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3994 mono_mb_emit_byte (mb, CEE_MONO_FUNC1);
3995 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_STR);
3996 mono_mb_emit_byte (mb, CEE_STIND_I);
3998 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3999 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4000 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4003 case MONO_TYPE_CLASS:
4004 case MONO_TYPE_OBJECT:
4005 if (t->data.klass == mono_defaults.stringbuilder_class) {
4006 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4007 gboolean need_free = TRUE;
4009 g_assert (!t->byref);
4010 mono_mb_emit_ldarg (mb, argnum);
4011 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4012 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4013 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4016 case MONO_NATIVE_LPWSTR:
4017 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPWSTR_SB);
4019 * mono_string_builder_to_utf16 does not allocate a
4020 * new buffer, so no need to free it.
4024 case MONO_NATIVE_LPSTR:
4025 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPSTR_SB);
4027 case MONO_NATIVE_LPTSTR:
4028 mono_mb_emit_byte (mb, MONO_MARSHAL_CONV_LPTSTR_SB);
4031 g_assert_not_reached ();
4035 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4036 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4037 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4042 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4045 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4046 /* allocate a new object new object */
4047 mono_mb_emit_ldarg (mb, argnum);
4048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4049 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4050 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4051 mono_mb_emit_byte (mb, CEE_STIND_I);
4054 /* dst = *argument */
4055 mono_mb_emit_ldarg (mb, argnum);
4058 mono_mb_emit_byte (mb, CEE_LDIND_I);
4060 mono_mb_emit_byte (mb, CEE_STLOC_1);
4062 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4063 mono_mb_emit_byte (mb, CEE_BRFALSE);
4065 mono_mb_emit_i4 (mb, 0);
4067 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4068 mono_mb_emit_icon (mb, sizeof (MonoObject));
4069 mono_mb_emit_byte (mb, CEE_ADD);
4070 mono_mb_emit_byte (mb, CEE_STLOC_1);
4072 /* src = tmp_locals [i] */
4073 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4074 mono_mb_emit_byte (mb, CEE_STLOC_0);
4076 /* emit valuetype conversion code */
4077 emit_struct_conv (mb, klass, TRUE);
4079 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4081 case MONO_TYPE_VALUETYPE:
4085 klass = t->data.klass;
4086 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4087 klass->blittable || klass->enumtype)
4090 /* dst = argument */
4091 mono_mb_emit_ldarg (mb, argnum);
4092 mono_mb_emit_byte (mb, CEE_STLOC_1);
4094 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4095 mono_mb_emit_byte (mb, CEE_BRFALSE);
4097 mono_mb_emit_i4 (mb, 0);
4099 /* src = tmp_locals [i] */
4100 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4101 mono_mb_emit_byte (mb, CEE_STLOC_0);
4103 /* emit valuetype conversion code */
4104 emit_struct_conv (mb, klass, TRUE);
4106 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4108 case MONO_TYPE_SZARRAY:
4112 klass = mono_class_from_mono_type (t);
4114 if (klass->element_class == mono_defaults.string_class) {
4115 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4116 g_assert (tmp_locals [i]);
4118 mono_mb_emit_ldarg (mb, argnum);
4119 mono_mb_emit_byte (mb, CEE_BRFALSE);
4121 mono_mb_emit_i4 (mb, 0);
4123 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4126 case MONO_NATIVE_LPWSTR:
4128 * The array elements point to the managed string data so
4129 * they don't need to be freed.
4131 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4132 mono_mb_emit_byte (mb, CEE_MONO_FREE);
4135 mono_mb_emit_ldarg (mb, argnum);
4136 mono_mb_emit_byte (mb, CEE_LDLEN);
4137 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4138 mono_mb_emit_byte (mb, CEE_MONO_PROC2);
4139 mono_mb_emit_byte (mb, MONO_MARSHAL_FREE_ARRAY);
4143 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4146 /* Character arrays are implicitly marshalled as [Out] */
4147 if ((klass->element_class == mono_defaults.char_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4148 /* FIXME: Optimize blittable case */
4150 guint32 label1, label2, label3;
4151 int index_var, src_ptr;
4153 eklass = klass->element_class;
4154 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4157 mono_mb_emit_ldarg (mb, argnum);
4158 mono_mb_emit_byte (mb, CEE_BRFALSE);
4160 mono_mb_emit_i4 (mb, 0);
4162 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4163 mono_mb_emit_stloc (mb, src_ptr);
4165 /* Emit marshalling loop */
4166 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4167 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4168 mono_mb_emit_stloc (mb, index_var);
4170 mono_mb_emit_ldloc (mb, index_var);
4171 mono_mb_emit_ldarg (mb, argnum);
4172 mono_mb_emit_byte (mb, CEE_LDLEN);
4173 mono_mb_emit_byte (mb, CEE_BGE);
4175 mono_mb_emit_i4 (mb, 0);
4177 /* Emit marshalling code */
4179 /* set the src_ptr */
4180 mono_mb_emit_ldloc (mb, src_ptr);
4181 mono_mb_emit_byte (mb, CEE_STLOC_0);
4184 mono_mb_emit_ldarg (mb, argnum);
4185 mono_mb_emit_ldloc (mb, index_var);
4186 mono_mb_emit_byte (mb, CEE_LDELEMA);
4187 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4188 mono_mb_emit_byte (mb, CEE_STLOC_1);
4190 /* emit valuetype conversion code */
4191 emit_struct_conv (mb, eklass, TRUE);
4193 mono_mb_emit_add_to_local (mb, index_var, 1);
4194 mono_mb_emit_add_to_local (mb, src_ptr, mono_class_native_size (eklass, NULL));
4196 mono_mb_emit_byte (mb, CEE_BR);
4197 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4199 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4200 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4203 case MONO_TYPE_BOOLEAN:
4206 mono_mb_emit_ldarg (mb, argnum);
4207 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4208 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4209 mono_mb_emit_byte (mb, CEE_NEG);
4210 mono_mb_emit_byte (mb, CEE_STIND_I1);
4214 if (!MONO_TYPE_IS_VOID(sig->ret))
4215 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4217 mono_mb_emit_byte (mb, CEE_RET);
4219 csig = mono_metadata_signature_dup (sig);
4221 res = mono_mb_create_and_cache (cache, method,
4222 mb, csig, csig->param_count + 16);
4225 for (i = sig->param_count; i >= 0; i--)
4226 g_free (mspecs [i]);
4229 //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));
4235 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4237 static MonoReflectionType *
4238 type_from_handle (MonoType *handle)
4240 MonoDomain *domain = mono_domain_get ();
4241 MonoClass *klass = mono_class_from_mono_type (handle);
4243 MONO_ARCH_SAVE_REGS;
4245 mono_class_init (klass);
4246 return mono_type_get_object (domain, handle);
4250 * mono_marshal_get_isinst:
4251 * @klass: the type of the field
4253 * This method generates a function which can be used to check if an object is
4254 * an instance of the given type, icluding the case where the object is a proxy.
4255 * The generated function has the following signature:
4256 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4259 mono_marshal_get_isinst (MonoClass *klass)
4261 static MonoMethodSignature *isint_sig = NULL;
4262 static GHashTable *isinst_hash = NULL;
4264 int pos_was_ok, pos_failed, pos_end, pos_end2;
4266 MonoMethodBuilder *mb;
4268 EnterCriticalSection (&marshal_mutex);
4270 isinst_hash = g_hash_table_new (NULL, NULL);
4272 res = g_hash_table_lookup (isinst_hash, klass);
4273 LeaveCriticalSection (&marshal_mutex);
4278 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4279 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4280 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4281 isint_sig->pinvoke = 0;
4284 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4285 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4288 mb->method->save_lmf = 1;
4290 /* check if the object is a proxy that needs special cast */
4291 mono_mb_emit_ldarg (mb, 0);
4292 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4293 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4294 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4296 /* The result of MONO_ISINST can be:
4297 0) the type check succeeded
4298 1) the type check did not succeed
4299 2) a CanCastTo call is needed */
4301 mono_mb_emit_byte (mb, CEE_DUP);
4302 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4304 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4305 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4307 /* get the real proxy from the transparent proxy*/
4309 mono_mb_emit_ldarg (mb, 0);
4310 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4311 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4315 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4316 mono_mb_emit_byte (mb, CEE_LDNULL);
4317 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4321 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4322 mono_mb_emit_byte (mb, CEE_POP);
4323 mono_mb_emit_ldarg (mb, 0);
4327 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4328 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4329 mono_mb_emit_byte (mb, CEE_RET);
4331 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4338 * mono_marshal_get_castclass:
4339 * @klass: the type of the field
4341 * This method generates a function which can be used to cast an object to
4342 * an instance of the given type, icluding the case where the object is a proxy.
4343 * The generated function has the following signature:
4344 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4347 mono_marshal_get_castclass (MonoClass *klass)
4349 static MonoMethodSignature *castclass_sig = NULL;
4350 static GHashTable *castclass_hash = NULL;
4352 int pos_was_ok, pos_was_ok2;
4354 MonoMethodBuilder *mb;
4356 EnterCriticalSection (&marshal_mutex);
4357 if (!castclass_hash)
4358 castclass_hash = g_hash_table_new (NULL, NULL);
4360 res = g_hash_table_lookup (castclass_hash, klass);
4361 LeaveCriticalSection (&marshal_mutex);
4365 if (!castclass_sig) {
4366 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4367 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4368 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4369 castclass_sig->pinvoke = 0;
4372 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4373 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4376 mb->method->save_lmf = 1;
4378 /* check if the object is a proxy that needs special cast */
4379 mono_mb_emit_ldarg (mb, 0);
4380 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4381 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4382 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4384 /* The result of MONO_ISINST can be:
4385 0) the cast is valid
4386 1) cast of unknown proxy type
4387 or an exception if the cast is is invalid
4390 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4392 /* get the real proxy from the transparent proxy*/
4394 mono_mb_emit_ldarg (mb, 0);
4395 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4396 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4399 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4402 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4403 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4404 mono_mb_emit_ldarg (mb, 0);
4407 mono_mb_emit_byte (mb, CEE_RET);
4409 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4416 mono_marshal_get_proxy_cancast (MonoClass *klass)
4418 static MonoMethodSignature *from_handle_sig = NULL;
4419 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4420 static MonoMethodSignature *isint_sig = NULL;
4421 static GHashTable *proxy_isinst_hash = NULL;
4423 int pos_failed, pos_end;
4425 MonoMethod *can_cast_to;
4426 MonoMethodDesc *desc;
4427 MonoMethodBuilder *mb;
4429 EnterCriticalSection (&marshal_mutex);
4430 if (!proxy_isinst_hash)
4431 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4433 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4434 LeaveCriticalSection (&marshal_mutex);
4439 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4440 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4441 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4442 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4443 upgrade_proxy_sig->pinvoke = 1;
4445 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4446 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4447 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4449 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4450 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4451 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4452 isint_sig->pinvoke = 0;
4455 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4456 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_UNKNOWN);
4459 mb->method->save_lmf = 1;
4461 /* get the real proxy from the transparent proxy*/
4462 mono_mb_emit_ldarg (mb, 0);
4463 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4464 mono_mb_emit_byte (mb, CEE_LDIND_I);
4466 /* get the refletion type from the type handle */
4467 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4468 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4469 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4470 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4472 mono_mb_emit_ldarg (mb, 0);
4474 /* make the call to CanCastTo (type, ob) */
4475 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4476 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4477 g_assert (can_cast_to);
4478 mono_method_desc_free (desc);
4479 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4480 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4483 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4485 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4486 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4487 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4488 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4489 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4490 mono_mb_emit_ldarg (mb, 0);
4492 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4493 emit_thread_interrupt_checkpoint (mb);
4495 mono_mb_emit_ldarg (mb, 0);
4496 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4500 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4501 mono_mb_emit_byte (mb, CEE_LDNULL);
4505 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4506 mono_mb_emit_byte (mb, CEE_RET);
4508 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4515 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4518 klass = mono_class_from_mono_type (rtype->type);
4519 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4520 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4524 * mono_marshal_get_struct_to_ptr:
4527 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4530 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4532 MonoMethodBuilder *mb;
4533 static MonoMethod *stoptr = NULL;
4536 g_assert (klass != NULL);
4538 if (klass->str_to_ptr)
4539 return klass->str_to_ptr;
4542 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4545 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4547 if (klass->blittable) {
4548 mono_mb_emit_byte (mb, CEE_LDARG_1);
4549 mono_mb_emit_byte (mb, CEE_LDARG_0);
4550 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4551 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4552 mono_mb_emit_byte (mb, CEE_PREFIX1);
4553 mono_mb_emit_byte (mb, CEE_CPBLK);
4556 /* allocate local 0 (pointer) src_ptr */
4557 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4558 /* allocate local 1 (pointer) dst_ptr */
4559 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4560 /* allocate local 2 (boolean) delete_old */
4561 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4562 mono_mb_emit_byte (mb, CEE_LDARG_2);
4563 mono_mb_emit_byte (mb, CEE_STLOC_2);
4565 /* initialize src_ptr to point to the start of object data */
4566 mono_mb_emit_byte (mb, CEE_LDARG_0);
4567 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4568 mono_mb_emit_byte (mb, CEE_STLOC_0);
4570 /* initialize dst_ptr */
4571 mono_mb_emit_byte (mb, CEE_LDARG_1);
4572 mono_mb_emit_byte (mb, CEE_STLOC_1);
4574 emit_struct_conv (mb, klass, FALSE);
4577 mono_mb_emit_byte (mb, CEE_RET);
4579 res = mono_mb_create_method (mb, stoptr->signature, 0);
4582 klass->str_to_ptr = res;
4587 * mono_marshal_get_ptr_to_struct:
4590 * generates IL code for PtrToStructure (IntPtr src, object structure)
4593 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4595 MonoMethodBuilder *mb;
4596 static MonoMethod *ptostr = NULL;
4599 g_assert (klass != NULL);
4601 if (klass->ptr_to_str)
4602 return klass->ptr_to_str;
4605 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4608 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4610 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4611 mono_mb_emit_byte (mb, CEE_LDARG_1);
4612 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4613 mono_mb_emit_byte (mb, CEE_LDARG_0);
4614 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4615 mono_mb_emit_byte (mb, CEE_PREFIX1);
4616 mono_mb_emit_byte (mb, CEE_CPBLK);
4619 /* allocate local 0 (pointer) src_ptr */
4620 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4621 /* allocate local 1 (pointer) dst_ptr */
4622 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4624 /* initialize src_ptr to point to the start of object data */
4625 mono_mb_emit_byte (mb, CEE_LDARG_0);
4626 mono_mb_emit_byte (mb, CEE_STLOC_0);
4628 /* initialize dst_ptr */
4629 mono_mb_emit_byte (mb, CEE_LDARG_1);
4630 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4631 mono_mb_emit_byte (mb, CEE_STLOC_1);
4633 emit_struct_conv (mb, klass, TRUE);
4636 mono_mb_emit_byte (mb, CEE_RET);
4638 res = mono_mb_create_method (mb, ptostr->signature, 0);
4641 klass->ptr_to_str = res;
4646 * generates IL code for the synchronized wrapper: the generated method
4647 * calls METHOD while locking 'this' or the parent type.
4650 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
4652 static MonoMethodSignature *from_handle_sig = NULL;
4653 static MonoMethod *enter_method, *exit_method;
4654 MonoMethodSignature *sig;
4655 MonoExceptionClause *clause;
4656 MonoMethodHeader *header;
4657 MonoMethodBuilder *mb;
4660 int i, pos, this_local, ret_local;
4664 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
4667 cache = method->klass->image->synchronized_cache;
4668 if ((res = mono_marshal_find_in_cache (cache, method)))
4671 sig = method->signature;
4673 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
4676 if (!MONO_TYPE_IS_VOID (sig->ret))
4677 ret_local = mono_mb_add_local (mb, sig->ret);
4680 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4682 clause = g_new0 (MonoExceptionClause, 1);
4683 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
4685 if (!enter_method) {
4686 MonoMethodDesc *desc;
4688 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
4689 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4690 g_assert (enter_method);
4691 mono_method_desc_free (desc);
4692 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
4693 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4694 g_assert (exit_method);
4695 mono_method_desc_free (desc);
4698 * GetTypeFromHandle isn't called as a managed method because it has
4699 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
4700 * transformed into something else by the JIT.
4702 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4703 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4704 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4707 /* Push this or the type object */
4708 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
4709 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4710 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4711 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
4712 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4715 mono_mb_emit_ldarg (mb, 0);
4716 mono_mb_emit_stloc (mb, this_local);
4718 /* Call Monitor::Enter() */
4719 mono_mb_emit_ldloc (mb, this_local);
4720 mono_mb_emit_managed_call (mb, enter_method, NULL);
4722 clause->try_offset = mb->pos;
4724 /* Call the method */
4726 mono_mb_emit_ldarg (mb, 0);
4727 for (i = 0; i < sig->param_count; i++)
4728 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
4729 mono_mb_emit_managed_call (mb, method, method->signature);
4730 if (!MONO_TYPE_IS_VOID (sig->ret))
4731 mono_mb_emit_stloc (mb, ret_local);
4733 mono_mb_emit_byte (mb, CEE_LEAVE);
4735 mono_mb_emit_i4 (mb, 0);
4737 clause->try_len = mb->pos - clause->try_offset;
4738 clause->handler_offset = mb->pos;
4740 /* Call Monitor::Exit() */
4741 mono_mb_emit_ldloc (mb, this_local);
4742 // mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit);
4743 mono_mb_emit_managed_call (mb, exit_method, NULL);
4744 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
4746 clause->handler_len = mb->pos - clause->handler_offset;
4748 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4749 if (!MONO_TYPE_IS_VOID (sig->ret))
4750 mono_mb_emit_ldloc (mb, ret_local);
4751 mono_mb_emit_byte (mb, CEE_RET);
4753 res = mono_mb_create_and_cache (cache, method,
4754 mb, sig, sig->param_count + 16);
4757 header = ((MonoMethodNormal *)res)->header;
4758 header->num_clauses = 1;
4759 header->clauses = clause;
4764 /* FIXME: on win32 we should probably use GlobalAlloc(). */
4766 mono_marshal_alloc (gpointer size)
4768 MONO_ARCH_SAVE_REGS;
4770 return g_try_malloc ((gulong)size);
4774 mono_marshal_free (gpointer ptr)
4776 MONO_ARCH_SAVE_REGS;
4782 mono_marshal_free_array (gpointer *ptr, int size)
4789 for (i = 0; i < size; i++)
4795 mono_marshal_realloc (gpointer ptr, gpointer size)
4797 MONO_ARCH_SAVE_REGS;
4799 return g_try_realloc (ptr, (gulong)size);
4803 mono_marshal_string_array (MonoArray *array)
4811 len = mono_array_length (array);
4813 result = g_malloc (sizeof (char *) * (len + 1));
4814 for (i = 0; i < len; ++i) {
4815 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4816 result [i] = s ? mono_string_to_utf8 (s): NULL;
4818 /* null terminate the array */
4825 mono_marshal_string_array_to_unicode (MonoArray *array)
4833 len = mono_array_length (array);
4835 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
4836 for (i = 0; i < len; ++i) {
4837 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4838 result [i] = s ? mono_string_chars (s) : NULL;
4840 /* null terminate the array */
4847 * mono_marshal_set_last_error:
4849 * This function is invoked to set the last error value from a P/Invoke call
4850 * which has SetLastError set.
4853 mono_marshal_set_last_error (void)
4856 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
4858 TlsSetValue (last_error_tls_id, (gpointer)errno);
4863 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
4864 gpointer dest, gint32 length)
4869 MONO_ARCH_SAVE_REGS;
4871 MONO_CHECK_ARG_NULL (src);
4872 MONO_CHECK_ARG_NULL (dest);
4874 g_assert (src->obj.vtable->klass->rank == 1);
4875 g_assert (start_index >= 0);
4876 g_assert (length >= 0);
4877 g_assert (start_index + length <= mono_array_length (src));
4879 element_size = mono_array_element_size (src->obj.vtable->klass);
4881 source_addr = mono_array_addr_with_size (src, element_size, start_index);
4883 memcpy (dest, source_addr, length * element_size);
4887 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
4888 MonoArray *dest, gint32 length)
4893 MONO_ARCH_SAVE_REGS;
4895 MONO_CHECK_ARG_NULL (src);
4896 MONO_CHECK_ARG_NULL (dest);
4898 g_assert (dest->obj.vtable->klass->rank == 1);
4899 g_assert (start_index >= 0);
4900 g_assert (length >= 0);
4901 g_assert (start_index + length <= mono_array_length (dest));
4903 element_size = mono_array_element_size (dest->obj.vtable->klass);
4905 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
4907 memcpy (dest_addr, src, length * element_size);
4910 #if NO_UNALIGNED_ACCESS
4911 #define RETURN_UNALIGNED(type, addr) \
4914 memcpy(&val, p + offset, sizeof(val)); \
4917 #define WRITE_UNALIGNED(type, addr, val) \
4918 memcpy(addr, &val, sizeof(type))
4920 #define RETURN_UNALIGNED(type, addr) \
4921 return *(type*)(p + offset);
4922 #define WRITE_UNALIGNED(type, addr, val) \
4923 (*(type *)(addr) = (val))
4927 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
4931 MONO_ARCH_SAVE_REGS;
4933 RETURN_UNALIGNED(gpointer, p + offset);
4937 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
4941 MONO_ARCH_SAVE_REGS;
4943 return *(unsigned char*)(p + offset);
4947 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
4951 MONO_ARCH_SAVE_REGS;
4953 RETURN_UNALIGNED(gint16, p + offset);
4957 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
4961 MONO_ARCH_SAVE_REGS;
4963 RETURN_UNALIGNED(gint32, p + offset);
4967 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
4971 MONO_ARCH_SAVE_REGS;
4973 RETURN_UNALIGNED(gint64, p + offset);
4977 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
4981 MONO_ARCH_SAVE_REGS;
4983 *(unsigned char*)(p + offset) = val;
4987 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
4991 MONO_ARCH_SAVE_REGS;
4993 WRITE_UNALIGNED(gpointer, p + offset, val);
4997 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5001 MONO_ARCH_SAVE_REGS;
5003 WRITE_UNALIGNED(gint16, p + offset, val);
5007 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5011 MONO_ARCH_SAVE_REGS;
5013 WRITE_UNALIGNED(gint32, p + offset, val);
5017 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5021 MONO_ARCH_SAVE_REGS;
5023 WRITE_UNALIGNED(gint64, p + offset, val);
5027 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5029 MONO_ARCH_SAVE_REGS;
5032 return mono_string_new (mono_domain_get (), "");
5034 return mono_string_new (mono_domain_get (), ptr);
5038 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5040 MONO_ARCH_SAVE_REGS;
5043 return mono_string_new (mono_domain_get (), "");
5045 return mono_string_new_len (mono_domain_get (), ptr, len);
5049 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5051 MonoDomain *domain = mono_domain_get ();
5055 MONO_ARCH_SAVE_REGS;
5058 return mono_string_new (mono_domain_get (), "");
5063 return mono_string_new_utf16 (domain, ptr, len);
5067 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5069 MonoDomain *domain = mono_domain_get ();
5071 MONO_ARCH_SAVE_REGS;
5074 return mono_string_new (mono_domain_get (), "");
5076 return mono_string_new_utf16 (domain, ptr, len);
5080 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5082 MONO_ARCH_SAVE_REGS;
5084 g_warning ("PtrToStringBSTR not implemented");
5085 g_assert_not_reached ();
5091 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5093 MONO_ARCH_SAVE_REGS;
5095 return ((guint32)TlsGetValue (last_error_tls_id));
5099 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5105 MONO_ARCH_SAVE_REGS;
5107 MONO_CHECK_ARG_NULL (rtype);
5110 klass = mono_class_from_mono_type (type);
5111 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5113 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5117 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5118 exc = mono_get_exception_argument ("t", msg);
5120 mono_raise_exception (exc);
5124 return mono_class_native_size (klass, NULL);
5128 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5133 MONO_ARCH_SAVE_REGS;
5135 MONO_CHECK_ARG_NULL (obj);
5136 MONO_CHECK_ARG_NULL (dst);
5138 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5142 pa [2] = &delete_old;
5144 mono_runtime_invoke (method, NULL, pa, NULL);
5148 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5153 MONO_ARCH_SAVE_REGS;
5155 MONO_CHECK_ARG_NULL (src);
5156 MONO_CHECK_ARG_NULL (dst);
5158 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5163 mono_runtime_invoke (method, NULL, pa, NULL);
5167 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5169 MonoDomain *domain = mono_domain_get ();
5172 MONO_ARCH_SAVE_REGS;
5174 MONO_CHECK_ARG_NULL (src);
5175 MONO_CHECK_ARG_NULL (type);
5177 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5179 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5185 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5187 MonoMarshalType *info;
5190 int i, match_index = -1;
5192 MONO_ARCH_SAVE_REGS;
5194 MONO_CHECK_ARG_NULL (type);
5195 MONO_CHECK_ARG_NULL (field_name);
5197 fname = mono_string_to_utf8 (field_name);
5198 klass = mono_class_from_mono_type (type->type);
5200 while(klass && match_index == -1) {
5201 for (i = 0; i < klass->field.count; ++i) {
5202 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5208 if(match_index == -1)
5209 klass = klass->parent;
5214 if(match_index == -1) {
5218 /* Get back original class instance */
5219 klass = mono_class_from_mono_type (type->type);
5221 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5222 exc = mono_get_exception_argument ("fieldName", tmp);
5225 mono_raise_exception ((MonoException*)exc);
5228 info = mono_marshal_load_type_info (klass);
5229 return info->fields [match_index].offset;
5233 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5235 MONO_ARCH_SAVE_REGS;
5237 return mono_string_to_utf8 (string);
5241 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5243 MONO_ARCH_SAVE_REGS;
5248 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5252 mono_struct_delete_old (MonoClass *klass, char *ptr)
5254 MonoMarshalType *info;
5257 info = mono_marshal_load_type_info (klass);
5259 for (i = 0; i < info->num_fields; i++) {
5260 MonoMarshalNative ntype;
5261 MonoMarshalConv conv;
5262 MonoType *ftype = info->fields [i].field->type;
5265 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5268 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5269 klass->unicode, &conv);
5271 cpos = ptr + info->fields [i].offset;
5274 case MONO_MARSHAL_CONV_NONE:
5275 if (MONO_TYPE_ISSTRUCT (ftype)) {
5276 mono_struct_delete_old (ftype->data.klass, cpos);
5280 case MONO_MARSHAL_CONV_STR_LPWSTR:
5281 case MONO_MARSHAL_CONV_STR_LPSTR:
5282 case MONO_MARSHAL_CONV_STR_LPTSTR:
5283 case MONO_MARSHAL_CONV_STR_BSTR:
5284 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5285 case MONO_MARSHAL_CONV_STR_TBSTR:
5286 g_free (*(gpointer *)cpos);
5295 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5299 MONO_ARCH_SAVE_REGS;
5301 MONO_CHECK_ARG_NULL (src);
5302 MONO_CHECK_ARG_NULL (type);
5304 klass = mono_class_from_mono_type (type->type);
5306 mono_struct_delete_old (klass, (char *)src);
5310 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5312 /* FIXME: Call AllocCoTaskMem under windows */
5313 MONO_ARCH_SAVE_REGS;
5315 return g_try_malloc ((gulong)size);
5319 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5321 /* FIXME: Call FreeCoTaskMem under windows */
5322 MONO_ARCH_SAVE_REGS;
5328 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5330 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5334 mono_marshal_load_type_info (MonoClass* klass)
5336 int i, j, count = 0, native_size = 0, min_align = 1;
5337 MonoMarshalType *info;
5340 g_assert (klass != NULL);
5342 if (klass->marshal_info)
5343 return klass->marshal_info;
5346 mono_class_init (klass);
5348 for (i = 0; i < klass->field.count; ++i) {
5349 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5351 if (mono_field_is_deleted (&klass->fields [i]))
5356 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5358 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5359 info->num_fields = count;
5361 /* Try to find a size for this type in metadata */
5362 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5364 if (klass->parent) {
5365 int parent_size = mono_class_native_size (klass->parent, NULL);
5367 /* Add parent size to real size */
5368 native_size += parent_size;
5369 info->native_size = parent_size;
5372 for (j = i = 0; i < klass->field.count; ++i) {
5375 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5378 if (mono_field_is_deleted (&klass->fields [i]))
5380 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5381 mono_metadata_field_info (klass->image, klass->field.first + i,
5382 NULL, NULL, &info->fields [j].mspec);
5384 info->fields [j].field = &klass->fields [i];
5386 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5387 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5388 /* This field is a hack inserted by MCS to empty structures */
5393 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5394 case TYPE_ATTRIBUTE_SEQUENTIAL_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 = info->native_size;
5400 info->fields [j].offset += align - 1;
5401 info->fields [j].offset &= ~(align - 1);
5402 info->native_size = info->fields [j].offset + size;
5404 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5406 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5407 info->native_size = klass->instance_size - sizeof (MonoObject);
5413 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5414 info->native_size = MAX (native_size, info->native_size);
5417 if (info->native_size & (min_align - 1)) {
5418 info->native_size += min_align - 1;
5419 info->native_size &= ~(min_align - 1);
5422 /* Update the class's blittable info, if the layouts don't match */
5423 if (info->native_size != mono_class_value_size (klass, NULL))
5424 klass->blittable = FALSE;
5426 /* If this is an array type, ensure that we have element info */
5427 if (klass->element_class) {
5428 mono_marshal_load_type_info (klass->element_class);
5431 return klass->marshal_info;
5435 * mono_class_native_size:
5438 * Returns: the native size of an object instance (when marshaled
5439 * to unmanaged code)
5442 mono_class_native_size (MonoClass *klass, guint32 *align)
5445 if (!klass->marshal_info)
5446 mono_marshal_load_type_info (klass);
5449 *align = klass->min_align;
5451 return klass->marshal_info->native_size;
5455 * mono_type_native_stack_size:
5456 * @t: the type to return the size it uses on the stack
5458 * Returns: the number of bytes required to hold an instance of this
5459 * type on the native stack
5462 mono_type_native_stack_size (MonoType *t, gint *align)
5466 g_assert (t != NULL);
5477 case MONO_TYPE_BOOLEAN:
5478 case MONO_TYPE_CHAR:
5487 case MONO_TYPE_STRING:
5488 case MONO_TYPE_OBJECT:
5489 case MONO_TYPE_CLASS:
5490 case MONO_TYPE_SZARRAY:
5492 case MONO_TYPE_FNPTR:
5493 case MONO_TYPE_ARRAY:
5494 case MONO_TYPE_TYPEDBYREF:
5505 case MONO_TYPE_VALUETYPE: {
5508 if (t->data.klass->enumtype)
5509 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
5511 size = mono_class_native_size (t->data.klass, align);
5512 *align = *align + 3;
5522 g_error ("type 0x%02x unknown", t->type);
5527 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
5528 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
5529 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
5530 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
5533 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
5534 gboolean as_field, gboolean unicode)
5536 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
5539 switch (native_type) {
5540 case MONO_NATIVE_BOOLEAN:
5543 case MONO_NATIVE_I1:
5544 case MONO_NATIVE_U1:
5547 case MONO_NATIVE_I2:
5548 case MONO_NATIVE_U2:
5549 case MONO_NATIVE_VARIANTBOOL:
5552 case MONO_NATIVE_I4:
5553 case MONO_NATIVE_U4:
5554 case MONO_NATIVE_ERROR:
5557 case MONO_NATIVE_I8:
5558 case MONO_NATIVE_U8:
5559 *align = ALIGNMENT(guint64);
5561 case MONO_NATIVE_R4:
5564 case MONO_NATIVE_R8:
5565 *align = ALIGNMENT(double);
5567 case MONO_NATIVE_INT:
5568 case MONO_NATIVE_UINT:
5569 case MONO_NATIVE_LPSTR:
5570 case MONO_NATIVE_LPWSTR:
5571 case MONO_NATIVE_LPTSTR:
5572 case MONO_NATIVE_BSTR:
5573 case MONO_NATIVE_ANSIBSTR:
5574 case MONO_NATIVE_TBSTR:
5575 case MONO_NATIVE_LPARRAY:
5576 case MONO_NATIVE_SAFEARRAY:
5577 case MONO_NATIVE_IUNKNOWN:
5578 case MONO_NATIVE_IDISPATCH:
5579 case MONO_NATIVE_INTERFACE:
5580 case MONO_NATIVE_ASANY:
5581 case MONO_NATIVE_FUNC:
5582 case MONO_NATIVE_LPSTRUCT:
5583 *align = ALIGNMENT(gpointer);
5584 return sizeof (gpointer);
5585 case MONO_NATIVE_STRUCT:
5586 klass = mono_class_from_mono_type (type);
5587 return mono_class_native_size (klass, align);
5588 case MONO_NATIVE_BYVALTSTR: {
5589 int esize = unicode ? 2: 1;
5592 return mspec->data.array_data.num_elem * esize;
5594 case MONO_NATIVE_BYVALARRAY: {
5596 klass = mono_class_from_mono_type (type);
5597 esize = mono_class_native_size (klass->element_class, align);
5599 return mspec->data.array_data.num_elem * esize;
5601 case MONO_NATIVE_CUSTOM:
5602 g_assert_not_reached ();
5604 case MONO_NATIVE_CURRENCY:
5605 case MONO_NATIVE_VBBYREFSTR:
5607 g_error ("native type %02x not implemented", native_type);
5610 g_assert_not_reached ();
5615 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
5623 t = &o->vtable->klass->byval_arg;
5630 case MONO_TYPE_BOOLEAN:
5633 case MONO_TYPE_CHAR:
5638 return mono_object_unbox (o);
5640 case MONO_TYPE_STRING:
5641 switch (string_encoding) {
5642 case MONO_NATIVE_LPWSTR:
5643 return mono_string_to_utf16 ((MonoString*)o);
5645 case MONO_NATIVE_LPSTR:
5646 return mono_string_to_utf8 ((MonoString*)o);
5649 g_warning ("marshaling conversion %d not implemented", string_encoding);
5650 g_assert_not_reached ();
5653 case MONO_TYPE_CLASS:
5654 case MONO_TYPE_VALUETYPE: {
5658 MonoBoolean delete_old = FALSE;
5660 klass = t->data.klass;
5662 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
5665 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5666 klass->blittable || klass->enumtype)
5667 return mono_object_unbox (o);
5669 res = g_malloc0 (mono_class_native_size (klass, NULL));
5671 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
5675 pa [2] = &delete_old;
5677 mono_runtime_invoke (method, NULL, pa, NULL);
5683 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
5689 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
5694 /* FIXME: Free embedded data as well */
5699 t = &o->vtable->klass->byval_arg;
5701 case MONO_TYPE_STRING:
5702 switch (string_encoding) {
5703 case MONO_NATIVE_LPWSTR:
5706 case MONO_NATIVE_LPSTR:
5710 g_warning ("marshaling conversion %d not implemented", string_encoding);
5711 g_assert_not_reached ();
5714 case MONO_TYPE_CLASS:
5715 case MONO_TYPE_VALUETYPE: {
5716 klass = t->data.klass;
5718 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5719 klass->blittable || klass->enumtype)