2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
14 #include "metadata/marshal.h"
15 #include "metadata/tabledefs.h"
16 #include "metadata/exception.h"
17 #include "metadata/appdomain.h"
18 #include "mono/metadata/debug-helpers.h"
19 #include "mono/metadata/threadpool.h"
20 #include "mono/metadata/threads.h"
21 #include "mono/metadata/monitor.h"
22 #include "mono/metadata/metadata-internals.h"
23 #include <mono/os/gc_wrapper.h>
27 /* #define DEBUG_RUNTIME_CODE */
29 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
33 #include "mono/cil/opcode.def"
38 struct _MonoMethodBuilder {
42 guint32 code_size, pos;
47 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
50 mono_find_method_by_name (MonoClass *klass, const char *name, int param_count)
52 MonoMethod *res = NULL;
55 for (i = 0; i < klass->method.count; ++i) {
56 if (klass->methods [i]->name[0] == name [0] &&
57 !strcmp (name, klass->methods [i]->name) &&
58 klass->methods [i]->signature->param_count == param_count) {
59 res = klass->methods [i];
66 #ifdef DEBUG_RUNTIME_CODE
68 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
70 return g_strdup (" ");
73 static MonoDisHelper marshal_dh = {
83 /* This mutex protects the various marshalling related caches in MonoImage */
84 static CRITICAL_SECTION marshal_mutex;
86 /* Maps wrapper methods to the methods they wrap */
87 static MonoGHashTable *wrapper_hash;
89 static guint32 last_error_tls_id;
92 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
94 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
96 mono_register_jit_icall (func, name, sig, save);
100 mono_marshal_init (void)
102 static gboolean module_initialized = FALSE;
104 if (!module_initialized) {
105 module_initialized = TRUE;
106 InitializeCriticalSection (&marshal_mutex);
107 MONO_GC_REGISTER_ROOT (wrapper_hash);
108 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
109 last_error_tls_id = TlsAlloc ();
111 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
112 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
113 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
114 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
115 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
116 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
117 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
118 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
119 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
120 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
121 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
122 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
123 register_icall (mono_marshal_string_array, "mono_marshal_string_array", "ptr object", FALSE);
124 register_icall (mono_marshal_string_array_to_unicode, "mono_marshal_string_array_to_unicode", "ptr object", FALSE);
125 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int", FALSE);
126 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int", FALSE);
127 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
128 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
129 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr ptr", FALSE);
130 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr ptr", FALSE);
131 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr ptr", FALSE);
132 register_icall (g_free, "g_free", "void ptr", FALSE);
137 mono_delegate_to_ftnptr (MonoDelegate *delegate)
139 MonoMethod *method, *wrapper, *invoke;
140 MonoMarshalSpec **mspecs;
147 if (delegate->delegate_trampoline)
148 return delegate->delegate_trampoline;
150 klass = ((MonoObject *)delegate)->vtable->klass;
151 g_assert (klass->delegate);
154 method = delegate->method_info->method;
155 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
157 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
158 mono_method_get_marshal_info (invoke, mspecs);
160 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
162 for (i = invoke->signature->param_count; i >= 0; i--)
166 delegate->delegate_trampoline = mono_compile_method (wrapper);
168 return delegate->delegate_trampoline;
172 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
177 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
179 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
181 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
183 /* FIXME: discard the wrapper and call the original method */
184 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
190 mono_array_to_savearray (MonoArray *array)
195 g_assert_not_reached ();
200 mono_array_to_lparray (MonoArray *array)
205 /* fixme: maybe we need to make a copy */
206 return array->vector;
210 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
212 GError *error = NULL;
222 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
224 if (items_written > mono_stringbuilder_capacity (sb))
225 items_written = mono_stringbuilder_capacity (sb);
228 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
229 sb->length = items_written;
231 g_error_free (error);
237 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
244 g_assert (mono_string_chars (sb->str) == text);
246 for (len = 0; text [len] != 0; ++len)
253 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
255 GError *error = NULL;
262 res = g_malloc0 (mono_stringbuilder_capacity (sb) + 1);
264 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
266 g_error_free (error);
267 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
270 memcpy (res, tmp, sb->length + 1);
276 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
281 return mono_string_chars (sb->str);
285 mono_string_to_ansibstr (MonoString *string_obj)
287 g_error ("implement me");
292 mono_string_to_bstr (MonoString *string_obj)
294 g_error ("implement me");
299 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
304 g_assert (dst != NULL);
307 memset (dst, 0, size);
312 s = mono_string_to_utf8 (src);
313 len = MIN (size, strlen (s));
314 memcpy (dst, s, len);
317 *((char *)dst + size - 1) = 0;
321 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
325 g_assert (dst != NULL);
329 memset (dst, 0, size);
333 len = MIN (size, (mono_string_length (src) * 2));
334 memcpy (dst, mono_string_chars (src), len);
336 *((char *)dst + size - 1) = 0;
337 *((char *)dst + size - 2) = 0;
341 mono_mb_free (MonoMethodBuilder *mb)
343 g_list_free (mb->locals_list);
348 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
350 MonoMethodBuilder *mb;
353 g_assert (klass != NULL);
354 g_assert (name != NULL);
356 mb = g_new0 (MonoMethodBuilder, 1);
358 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
361 m->name = g_strdup (name);
363 m->inline_count = -1;
364 m->wrapper_type = type;
367 mb->code = g_malloc (mb->code_size);
373 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
375 int res = mb->locals;
377 g_assert (mb != NULL);
378 g_assert (type != NULL);
380 mb->locals_list = g_list_append (mb->locals_list, type);
387 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
389 MonoMethodHeader *header;
393 g_assert (mb != NULL);
395 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
396 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
401 header->max_stack = max_stack;
403 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
404 header->locals [i] = (MonoType *)l->data;
407 mb->method->signature = signature;
408 header->code = mb->code;
409 header->code_size = mb->pos;
410 header->num_locals = mb->locals;
412 #ifdef DEBUG_RUNTIME_CODE
413 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
414 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
421 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
423 MonoMethodWrapper *mw;
425 g_assert (mb != NULL);
427 mw = (MonoMethodWrapper *)mb->method;
429 mw->data = g_list_append (mw->data, data);
431 return g_list_length (mw->data);
435 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
437 mb->code [pos] = value & 0xff;
438 mb->code [pos + 1] = (value >> 8) & 0xff;
439 mb->code [pos + 2] = (value >> 16) & 0xff;
440 mb->code [pos + 3] = (value >> 24) & 0xff;
444 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
446 *((gint8 *)(&mb->code [pos])) = value;
450 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
452 if (mb->pos >= mb->code_size) {
454 mb->code = g_realloc (mb->code, mb->code_size);
457 mb->code [mb->pos++] = op;
461 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
463 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
464 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
467 mono_mb_emit_icon (mb, offset);
468 mono_mb_emit_byte (mb, CEE_ADD);
473 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
476 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
477 mono_mb_emit_byte (mb, CEE_LDIND_I);
478 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
479 mono_mb_emit_byte (mb, CEE_ADD);
480 mono_mb_emit_byte (mb, CEE_LDIND_I);
481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
482 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
483 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
484 mono_mb_emit_byte (mb, branch_code);
486 mono_mb_emit_i4 (mb, 0);
491 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
493 if ((mb->pos + 4) >= mb->code_size) {
495 mb->code = g_realloc (mb->code, mb->code_size);
498 mono_mb_patch_addr (mb, mb->pos, data);
503 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
505 if ((mb->pos + 2) >= mb->code_size) {
507 mb->code = g_realloc (mb->code, mb->code_size);
510 mb->code [mb->pos] = data & 0xff;
511 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
516 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
518 mono_mb_emit_byte (mb, CEE_LDSTR);
519 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
524 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
527 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
528 } else if (argnum < 256) {
529 mono_mb_emit_byte (mb, CEE_LDARG_S);
530 mono_mb_emit_byte (mb, argnum);
532 mono_mb_emit_byte (mb, CEE_PREFIX1);
533 mono_mb_emit_byte (mb, CEE_LDARG);
534 mono_mb_emit_i2 (mb, argnum);
539 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
542 mono_mb_emit_byte (mb, CEE_LDARGA_S);
543 mono_mb_emit_byte (mb, argnum);
545 mono_mb_emit_byte (mb, CEE_PREFIX1);
546 mono_mb_emit_byte (mb, CEE_LDARGA);
547 mono_mb_emit_i2 (mb, argnum);
552 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
555 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
556 mono_mb_emit_byte (mb, locnum);
558 mono_mb_emit_byte (mb, CEE_PREFIX1);
559 mono_mb_emit_byte (mb, CEE_LDLOCA);
560 mono_mb_emit_i2 (mb, locnum);
565 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
568 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
569 } else if (num < 256) {
570 mono_mb_emit_byte (mb, CEE_LDLOC_S);
571 mono_mb_emit_byte (mb, num);
573 mono_mb_emit_byte (mb, CEE_PREFIX1);
574 mono_mb_emit_byte (mb, CEE_LDLOC);
575 mono_mb_emit_i2 (mb, num);
580 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
583 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
584 } else if (num < 256) {
585 mono_mb_emit_byte (mb, CEE_STLOC_S);
586 mono_mb_emit_byte (mb, num);
588 mono_mb_emit_byte (mb, CEE_PREFIX1);
589 mono_mb_emit_byte (mb, CEE_STLOC);
590 mono_mb_emit_i2 (mb, num);
595 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
597 if (value >= -1 && value < 8) {
598 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
599 } else if (value >= -128 && value <= 127) {
600 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
601 mono_mb_emit_byte (mb, value);
603 mono_mb_emit_byte (mb, CEE_LDC_I4);
604 mono_mb_emit_i4 (mb, value);
609 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
612 mono_mb_emit_byte (mb, op);
614 mono_mb_emit_i4 (mb, 0);
619 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
621 mono_mb_emit_byte (mb, CEE_CALLI);
622 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
626 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
628 mono_mb_emit_byte (mb, CEE_PREFIX1);
629 mono_mb_emit_byte (mb, CEE_LDFTN);
630 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
631 mono_mb_emit_calli (mb, opt_sig ? opt_sig : method->signature);
635 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
637 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
638 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
639 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
640 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
641 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
642 mono_mb_emit_calli (mb, sig);
643 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
644 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
648 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
650 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
651 mono_mb_emit_byte (mb, CEE_MONO_ICALL);
652 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
656 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
658 /* fixme: we need a better way to throw exception,
659 * supporting several exception types and messages */
660 MonoMethod *ctor = NULL;
662 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
664 mono_class_init (mme);
665 for (i = 0; i < mme->method.count; ++i) {
666 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
667 ctor = mme->methods [i];
672 mono_mb_emit_byte (mb, CEE_NEWOBJ);
673 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
675 mono_mb_emit_byte (mb, CEE_DUP);
676 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
677 mono_mb_emit_ldstr (mb, (char*)msg);
678 mono_mb_emit_byte (mb, CEE_STIND_I);
680 mono_mb_emit_byte (mb, CEE_THROW);
684 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
686 mono_mb_emit_ldloc (mb, local);
687 mono_mb_emit_icon (mb, incr);
688 mono_mb_emit_byte (mb, CEE_ADD);
689 mono_mb_emit_stloc (mb, local);
693 emit_ptr_to_str_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
694 int usize, int msize, MonoMarshalSpec *mspec)
697 case MONO_MARSHAL_CONV_BOOL_I4:
698 mono_mb_emit_byte (mb, CEE_LDLOC_1);
699 mono_mb_emit_byte (mb, CEE_LDLOC_0);
700 mono_mb_emit_byte (mb, CEE_LDIND_I4);
701 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
702 mono_mb_emit_byte (mb, 3);
703 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
704 mono_mb_emit_byte (mb, CEE_BR_S);
705 mono_mb_emit_byte (mb, 1);
706 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
707 mono_mb_emit_byte (mb, CEE_STIND_I1);
709 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
710 mono_mb_emit_byte (mb, CEE_LDLOC_1);
711 mono_mb_emit_byte (mb, CEE_LDLOC_0);
712 mono_mb_emit_byte (mb, CEE_LDIND_I2);
713 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
714 mono_mb_emit_byte (mb, 3);
715 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
716 mono_mb_emit_byte (mb, CEE_BR_S);
717 mono_mb_emit_byte (mb, 1);
718 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
719 mono_mb_emit_byte (mb, CEE_STIND_I1);
721 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
722 MonoClass *eclass = NULL;
725 if (type->type == MONO_TYPE_SZARRAY) {
726 eclass = type->data.klass;
728 g_assert_not_reached ();
731 if (eclass->valuetype)
732 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
734 esize = sizeof (gpointer);
736 /* create a new array */
737 mono_mb_emit_byte (mb, CEE_LDLOC_1);
738 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
739 mono_mb_emit_byte (mb, CEE_NEWARR);
740 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
741 mono_mb_emit_byte (mb, CEE_STIND_I);
743 /* copy the elements */
744 mono_mb_emit_byte (mb, CEE_LDLOC_1);
745 mono_mb_emit_byte (mb, CEE_LDIND_I);
746 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
747 mono_mb_emit_byte (mb, CEE_ADD);
748 mono_mb_emit_byte (mb, CEE_LDLOC_0);
749 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
750 mono_mb_emit_byte (mb, CEE_PREFIX1);
751 mono_mb_emit_byte (mb, CEE_CPBLK);
755 case MONO_MARSHAL_CONV_STR_BYVALSTR:
756 mono_mb_emit_byte (mb, CEE_LDLOC_1);
757 mono_mb_emit_byte (mb, CEE_LDLOC_0);
758 mono_mb_emit_icall (mb, mono_string_new_wrapper);
759 mono_mb_emit_byte (mb, CEE_STIND_I);
761 case MONO_MARSHAL_CONV_STR_LPTSTR:
762 case MONO_MARSHAL_CONV_STR_LPSTR:
763 mono_mb_emit_byte (mb, CEE_LDLOC_1);
764 mono_mb_emit_byte (mb, CEE_LDLOC_0);
765 mono_mb_emit_byte (mb, CEE_LDIND_I);
766 mono_mb_emit_icall (mb, mono_string_new_wrapper);
767 mono_mb_emit_byte (mb, CEE_STIND_I);
769 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
770 MonoClass *klass = mono_class_from_mono_type (type);
771 int src_var, dst_var;
773 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
774 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
776 /* *dst = new object */
777 mono_mb_emit_byte (mb, CEE_LDLOC_1);
778 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
779 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
780 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
781 mono_mb_emit_byte (mb, CEE_STIND_I);
783 /* save the old src pointer */
784 mono_mb_emit_byte (mb, CEE_LDLOC_0);
785 mono_mb_emit_stloc (mb, src_var);
786 /* save the old dst pointer */
787 mono_mb_emit_byte (mb, CEE_LDLOC_1);
788 mono_mb_emit_stloc (mb, dst_var);
790 /* dst = pointer to newly created object data */
791 mono_mb_emit_byte (mb, CEE_LDLOC_1);
792 mono_mb_emit_byte (mb, CEE_LDIND_I);
793 mono_mb_emit_icon (mb, sizeof (MonoObject));
794 mono_mb_emit_byte (mb, CEE_ADD);
795 mono_mb_emit_byte (mb, CEE_STLOC_1);
797 emit_struct_conv (mb, klass, TRUE);
799 /* restore the old src pointer */
800 mono_mb_emit_ldloc (mb, src_var);
801 mono_mb_emit_byte (mb, CEE_STLOC_0);
802 /* restore the old dst pointer */
803 mono_mb_emit_ldloc (mb, dst_var);
804 mono_mb_emit_byte (mb, CEE_STLOC_1);
807 case MONO_MARSHAL_CONV_DEL_FTN: {
808 /* fixme: we never convert functions back to delegates, dont
809 // know if thats the correct behaviour
813 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
814 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
816 case MONO_MARSHAL_CONV_STR_LPWSTR:
817 case MONO_MARSHAL_CONV_STR_BSTR:
818 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
819 case MONO_MARSHAL_CONV_STR_TBSTR:
820 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
821 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
823 g_warning ("marshaling conversion %d not implemented", conv);
824 g_assert_not_reached ();
829 conv_to_icall (MonoMarshalConv conv)
832 case MONO_MARSHAL_CONV_STR_LPWSTR:
833 return mono_string_to_utf16;
834 case MONO_MARSHAL_CONV_LPWSTR_STR:
835 return mono_string_from_utf16;
836 case MONO_MARSHAL_CONV_LPSTR_STR:
837 return mono_string_new_wrapper;
838 case MONO_MARSHAL_CONV_STR_LPTSTR:
839 case MONO_MARSHAL_CONV_STR_LPSTR:
840 return mono_string_to_utf8;
841 case MONO_MARSHAL_CONV_STR_BSTR:
842 return mono_string_to_bstr;
843 case MONO_MARSHAL_CONV_STR_TBSTR:
844 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
845 return mono_string_to_ansibstr;
846 case MONO_MARSHAL_CONV_SB_LPSTR:
847 case MONO_MARSHAL_CONV_SB_LPTSTR:
848 return mono_string_builder_to_utf8;
849 case MONO_MARSHAL_CONV_SB_LPWSTR:
850 return mono_string_builder_to_utf16;
851 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
852 return mono_array_to_savearray;
853 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
854 return mono_array_to_lparray;
855 case MONO_MARSHAL_CONV_DEL_FTN:
856 return mono_delegate_to_ftnptr;
857 case MONO_MARSHAL_CONV_FTN_DEL:
858 return mono_ftnptr_to_delegate;
859 case MONO_MARSHAL_CONV_LPSTR_SB:
860 case MONO_MARSHAL_CONV_LPTSTR_SB:
861 return mono_string_utf8_to_builder;
862 case MONO_MARSHAL_CONV_LPWSTR_SB:
863 return mono_string_utf16_to_builder;
864 case MONO_MARSHAL_FREE_ARRAY:
865 return mono_marshal_free_array;
866 case MONO_MARSHAL_CONV_STR_BYVALSTR:
867 return mono_string_to_byvalstr;
868 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
869 return mono_string_to_byvalwstr;
871 g_assert_not_reached ();
878 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
879 MonoMarshalSpec *mspec)
884 case MONO_MARSHAL_CONV_BOOL_I4:
885 mono_mb_emit_byte (mb, CEE_LDLOC_1);
886 mono_mb_emit_byte (mb, CEE_LDLOC_0);
887 mono_mb_emit_byte (mb, CEE_LDIND_U1);
888 mono_mb_emit_byte (mb, CEE_STIND_I4);
890 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
891 mono_mb_emit_byte (mb, CEE_LDLOC_1);
892 mono_mb_emit_byte (mb, CEE_LDLOC_0);
893 mono_mb_emit_byte (mb, CEE_LDIND_U1);
894 mono_mb_emit_byte (mb, CEE_NEG);
895 mono_mb_emit_byte (mb, CEE_STIND_I2);
897 case MONO_MARSHAL_CONV_STR_LPWSTR:
898 case MONO_MARSHAL_CONV_STR_LPSTR:
899 case MONO_MARSHAL_CONV_STR_LPTSTR:
900 case MONO_MARSHAL_CONV_STR_BSTR:
901 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
902 case MONO_MARSHAL_CONV_STR_TBSTR: {
905 /* free space if free == true */
906 mono_mb_emit_byte (mb, CEE_LDLOC_2);
907 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
909 mono_mb_emit_byte (mb, 0);
910 mono_mb_emit_byte (mb, CEE_LDLOC_1);
911 mono_mb_emit_byte (mb, CEE_LDIND_I);
912 mono_mb_emit_icall (mb, g_free);
913 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
915 mono_mb_emit_byte (mb, CEE_LDLOC_1);
916 mono_mb_emit_byte (mb, CEE_LDLOC_0);
917 mono_mb_emit_byte (mb, CEE_LDIND_I);
918 mono_mb_emit_icall (mb, conv_to_icall (conv));
919 mono_mb_emit_byte (mb, CEE_STIND_I);
922 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
923 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
924 case MONO_MARSHAL_CONV_DEL_FTN:
925 mono_mb_emit_byte (mb, CEE_LDLOC_1);
926 mono_mb_emit_byte (mb, CEE_LDLOC_0);
927 mono_mb_emit_byte (mb, CEE_LDIND_I);
928 mono_mb_emit_icall (mb, conv_to_icall (conv));
929 mono_mb_emit_byte (mb, CEE_STIND_I);
931 case MONO_MARSHAL_CONV_STR_BYVALSTR:
932 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
936 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
937 mono_mb_emit_byte (mb, CEE_LDLOC_0);
938 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
939 mono_mb_emit_icon (mb, usize);
940 mono_mb_emit_icall (mb, conv_to_icall (conv));
943 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
944 MonoClass *eclass = NULL;
947 if (type->type == MONO_TYPE_SZARRAY) {
948 eclass = type->data.klass;
950 g_assert_not_reached ();
953 if (eclass->valuetype)
954 esize = mono_class_native_size (eclass, NULL);
956 esize = sizeof (gpointer);
961 mono_mb_emit_byte (mb, CEE_LDLOC_0);
962 mono_mb_emit_byte (mb, CEE_LDIND_I);
963 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
965 mono_mb_emit_byte (mb, 0);
967 mono_mb_emit_byte (mb, CEE_LDLOC_1);
968 mono_mb_emit_byte (mb, CEE_LDLOC_0);
969 mono_mb_emit_byte (mb, CEE_LDIND_I);
970 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
971 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
972 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
973 mono_mb_emit_byte (mb, CEE_ADD);
974 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
975 mono_mb_emit_byte (mb, CEE_PREFIX1);
976 mono_mb_emit_byte (mb, CEE_CPBLK);
977 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
980 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
981 int src_var, dst_var;
983 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
984 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
986 mono_mb_emit_byte (mb, CEE_LDLOC_0);
987 mono_mb_emit_byte (mb, CEE_LDIND_I);
988 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
990 mono_mb_emit_byte (mb, 0);
992 /* save the old src pointer */
993 mono_mb_emit_byte (mb, CEE_LDLOC_0);
994 mono_mb_emit_stloc (mb, src_var);
995 /* save the old dst pointer */
996 mono_mb_emit_byte (mb, CEE_LDLOC_1);
997 mono_mb_emit_stloc (mb, dst_var);
999 /* src = pointer to object data */
1000 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1001 mono_mb_emit_byte (mb, CEE_LDIND_I);
1002 mono_mb_emit_icon (mb, sizeof (MonoObject));
1003 mono_mb_emit_byte (mb, CEE_ADD);
1004 mono_mb_emit_byte (mb, CEE_STLOC_0);
1006 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1008 /* restore the old src pointer */
1009 mono_mb_emit_ldloc (mb, src_var);
1010 mono_mb_emit_byte (mb, CEE_STLOC_0);
1011 /* restore the old dst pointer */
1012 mono_mb_emit_ldloc (mb, dst_var);
1013 mono_mb_emit_byte (mb, CEE_STLOC_1);
1015 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1019 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1020 MonoException *exc = mono_get_exception_not_implemented (msg);
1023 mono_raise_exception (exc);
1029 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1031 MonoMarshalType *info;
1035 emit_struct_conv(mb, klass->parent, to_object);
1037 info = mono_marshal_load_type_info (klass);
1039 if (info->native_size == 0)
1042 if (klass->blittable) {
1043 int msize = mono_class_value_size (klass, NULL);
1044 g_assert (msize == info->native_size);
1045 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1046 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1047 mono_mb_emit_icon (mb, msize);
1048 mono_mb_emit_byte (mb, CEE_PREFIX1);
1049 mono_mb_emit_byte (mb, CEE_CPBLK);
1051 mono_mb_emit_add_to_local (mb, 0, msize);
1052 mono_mb_emit_add_to_local (mb, 1, msize);
1056 for (i = 0; i < info->num_fields; i++) {
1057 MonoMarshalNative ntype;
1058 MonoMarshalConv conv;
1059 MonoType *ftype = info->fields [i].field->type;
1062 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1064 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1067 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1070 msize = klass->instance_size - info->fields [i].field->offset;
1071 usize = info->native_size - info->fields [i].offset;
1073 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1074 usize = info->fields [i + 1].offset - info->fields [i].offset;
1076 if ((msize < 0) || (usize < 0))
1077 /* This happens with GC aware auto layout */
1078 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
1080 g_assert ((msize >= 0) && (usize >= 0));
1083 case MONO_MARSHAL_CONV_NONE: {
1086 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1087 ftype->type == MONO_TYPE_U) {
1088 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1089 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1090 mono_mb_emit_byte (mb, CEE_LDIND_I);
1091 mono_mb_emit_byte (mb, CEE_STIND_I);
1100 #if SIZEOF_VOID_P == 4
1103 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1104 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1105 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1106 mono_mb_emit_byte (mb, CEE_STIND_I4);
1110 case MONO_TYPE_BOOLEAN:
1111 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1112 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1113 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1114 mono_mb_emit_byte (mb, CEE_STIND_I1);
1118 case MONO_TYPE_CHAR:
1119 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1120 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1121 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1122 mono_mb_emit_byte (mb, CEE_STIND_I2);
1126 #if SIZEOF_VOID_P == 8
1129 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1130 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1131 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1132 mono_mb_emit_byte (mb, CEE_STIND_I8);
1135 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1136 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1137 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1138 mono_mb_emit_byte (mb, CEE_STIND_R4);
1141 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1142 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1143 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1144 mono_mb_emit_byte (mb, CEE_STIND_R8);
1146 case MONO_TYPE_VALUETYPE:
1147 if (ftype->data.klass->enumtype) {
1148 t = ftype->data.klass->enum_basetype->type;
1151 emit_struct_conv (mb, ftype->data.klass, to_object);
1154 g_warning ("marshaling type %02x not implemented", ftype->type);
1155 g_assert_not_reached ();
1161 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1163 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1167 mono_mb_emit_add_to_local (mb, 0, usize);
1168 mono_mb_emit_add_to_local (mb, 1, msize);
1170 mono_mb_emit_add_to_local (mb, 0, msize);
1171 mono_mb_emit_add_to_local (mb, 1, usize);
1177 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1179 static MonoMethodSignature *state_check_sig = NULL;
1182 if (!state_check_sig) {
1183 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1184 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1185 state_check_sig->pinvoke = 0;
1188 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1189 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1190 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1191 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1192 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1194 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1196 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1199 static MonoAsyncResult *
1200 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1202 MonoMethodMessage *msg;
1203 MonoDelegate *async_callback;
1207 MonoMethod *method = NULL;
1210 g_assert (delegate);
1212 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1214 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1215 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1217 /* If the target is a proxy, make a direct call. Is proxy's work
1218 // to make the call asynchronous.
1220 MonoAsyncResult *ares;
1222 MonoArray *out_args;
1224 method = delegate->method_info->method;
1226 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1227 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1228 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1229 ares->async_delegate = (MonoObject *)delegate;
1230 ares->async_callback = (MonoObject *)async_callback;
1231 msg->async_result = ares;
1232 msg->call_type = CallType_BeginInvoke;
1234 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1239 klass = delegate->object.vtable->klass;
1241 method = mono_get_delegate_invoke (klass);
1242 for (i = 0; i < klass->method.count; ++i) {
1243 if (klass->methods [i]->name[0] == 'B' &&
1244 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1245 method = klass->methods [i];
1250 g_assert (method != NULL);
1252 im = mono_get_delegate_invoke (method->klass);
1253 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1255 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1259 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1261 int i, params_var, tmp_var;
1263 /* allocate local (pointer) *params[] */
1264 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1265 /* allocate local (pointer) tmp */
1266 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1268 /* alloate space on stack to store an array of pointers to the arguments */
1269 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1270 mono_mb_emit_byte (mb, CEE_PREFIX1);
1271 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1272 mono_mb_emit_stloc (mb, params_var);
1275 mono_mb_emit_ldloc (mb, params_var);
1276 mono_mb_emit_stloc (mb, tmp_var);
1278 if (save_this && sig->hasthis) {
1279 mono_mb_emit_ldloc (mb, tmp_var);
1280 mono_mb_emit_ldarg_addr (mb, 0);
1281 mono_mb_emit_byte (mb, CEE_STIND_I);
1282 /* tmp = tmp + sizeof (gpointer) */
1283 if (sig->param_count)
1284 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1288 for (i = 0; i < sig->param_count; i++) {
1289 mono_mb_emit_ldloc (mb, tmp_var);
1290 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1291 mono_mb_emit_byte (mb, CEE_STIND_I);
1292 /* tmp = tmp + sizeof (gpointer) */
1293 if (i < (sig->param_count - 1))
1294 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1301 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1305 GString *res = g_string_new ("");
1308 g_string_append (res, prefix);
1309 g_string_append_c (res, '_');
1312 mono_type_get_desc (res, sig->ret, FALSE);
1314 for (i = 0; i < sig->param_count; ++i) {
1315 g_string_append_c (res, '_');
1316 mono_type_get_desc (res, sig->params [i], FALSE);
1319 g_string_free (res, FALSE);
1324 * mono_marshal_get_string_encoding:
1326 * Return the string encoding which should be used for a given parameter.
1328 static MonoMarshalNative
1329 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1331 /* First try the parameter marshal info */
1333 if (spec->native == MONO_NATIVE_LPARRAY) {
1334 if (spec->data.array_data.elem_type != 0)
1335 return spec->data.array_data.elem_type;
1338 return spec->native;
1342 return MONO_NATIVE_LPSTR;
1344 /* Then try the method level marshal info */
1345 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1346 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1347 return MONO_NATIVE_LPSTR;
1348 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1349 return MONO_NATIVE_LPWSTR;
1350 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1351 return MONO_NATIVE_LPTSTR;
1353 return MONO_NATIVE_LPSTR;
1357 static MonoMarshalNative
1358 mono_marshal_get_stringbuilder_to_ptr_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1360 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1363 case MONO_NATIVE_LPWSTR:
1364 return MONO_MARSHAL_CONV_SB_LPWSTR;
1366 case MONO_NATIVE_LPSTR:
1367 return MONO_MARSHAL_CONV_SB_LPSTR;
1369 case MONO_NATIVE_LPTSTR:
1370 return MONO_MARSHAL_CONV_SB_LPTSTR;
1377 static MonoMarshalNative
1378 mono_marshal_get_ptr_to_stringbuilder_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
1380 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1385 case MONO_NATIVE_LPWSTR:
1387 * mono_string_builder_to_utf16 does not allocate a
1388 * new buffer, so no need to free it.
1391 return MONO_MARSHAL_CONV_LPWSTR_SB;
1392 case MONO_NATIVE_LPSTR:
1393 return MONO_MARSHAL_CONV_LPSTR_SB;
1395 case MONO_NATIVE_LPTSTR:
1396 return MONO_MARSHAL_CONV_LPTSTR_SB;
1403 static inline MonoMethod*
1404 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1408 EnterCriticalSection (&marshal_mutex);
1409 res = g_hash_table_lookup (cache, key);
1410 LeaveCriticalSection (&marshal_mutex);
1414 /* Create the method from the builder and place it in the cache */
1415 static inline MonoMethod*
1416 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1417 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1422 EnterCriticalSection (&marshal_mutex);
1423 res = g_hash_table_lookup (cache, key);
1425 /* This does not acquire any locks */
1426 res = mono_mb_create_method (mb, sig, max_stack);
1427 g_hash_table_insert (cache, key, res);
1428 mono_g_hash_table_insert (wrapper_hash, res, key);
1431 /* Somebody created it before us */
1433 LeaveCriticalSection (&marshal_mutex);
1439 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1443 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1446 EnterCriticalSection (&marshal_mutex);
1447 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1448 LeaveCriticalSection (&marshal_mutex);
1450 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1451 /* See mono_marshal_get_remoting_invoke_with_check */
1452 return (MonoMethod*)((char*)res - 1);
1458 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1460 MonoMethodSignature *sig;
1461 static MonoMethodSignature *csig = NULL;
1462 MonoMethodBuilder *mb;
1468 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1469 !strcmp (method->name, "BeginInvoke"));
1471 sig = method->signature;
1473 cache = method->klass->image->delegate_begin_invoke_cache;
1474 if ((res = mono_marshal_find_in_cache (cache, sig)))
1477 g_assert (sig->hasthis);
1480 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1482 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1483 csig->ret = &mono_defaults.object_class->byval_arg;
1484 csig->params [0] = &mono_defaults.object_class->byval_arg;
1485 csig->params [1] = &mono_defaults.int_class->byval_arg;
1488 name = mono_signature_to_name (sig, "begin_invoke");
1489 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1492 mb->method->save_lmf = 1;
1494 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1496 mono_mb_emit_ldarg (mb, 0);
1497 mono_mb_emit_ldloc (mb, params_var);
1498 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1499 emit_thread_interrupt_checkpoint (mb);
1500 mono_mb_emit_byte (mb, CEE_RET);
1502 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1508 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1510 MonoDomain *domain = mono_domain_get ();
1511 MonoAsyncResult *ares;
1512 MonoMethod *method = NULL;
1513 MonoMethodSignature *sig;
1514 MonoMethodMessage *msg;
1515 MonoObject *res, *exc;
1516 MonoArray *out_args;
1520 g_assert (delegate);
1522 if (!delegate->method_info || !delegate->method_info->method)
1523 g_assert_not_reached ();
1525 klass = delegate->object.vtable->klass;
1527 for (i = 0; i < klass->method.count; ++i) {
1528 if (klass->methods [i]->name[0] == 'E' &&
1529 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1530 method = klass->methods [i];
1535 g_assert (method != NULL);
1537 sig = method->signature;
1539 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1541 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1544 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1545 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1546 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1547 mono_message_init (domain, msg, delegate->method_info, NULL);
1548 msg->call_type = CallType_EndInvoke;
1549 msg->async_result = ares;
1550 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1553 res = mono_thread_pool_finish (ares, &out_args, &exc);
1556 if (((MonoException*)exc)->stack_trace) {
1557 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1559 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1561 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1564 mono_raise_exception ((MonoException*)exc);
1567 mono_method_return_message_restore (method, params, out_args);
1572 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1574 if (return_type->byref)
1575 return_type = &mono_defaults.int_class->byval_arg;
1576 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1577 return_type = return_type->data.klass->enum_basetype;
1579 switch (return_type->type) {
1580 case MONO_TYPE_VOID:
1581 g_assert_not_reached ();
1584 case MONO_TYPE_STRING:
1585 case MONO_TYPE_CLASS:
1586 case MONO_TYPE_OBJECT:
1587 case MONO_TYPE_ARRAY:
1588 case MONO_TYPE_SZARRAY:
1592 case MONO_TYPE_BOOLEAN:
1593 mono_mb_emit_byte (mb, CEE_UNBOX);
1594 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1595 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1598 mono_mb_emit_byte (mb, CEE_UNBOX);
1599 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1600 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1603 case MONO_TYPE_CHAR:
1604 mono_mb_emit_byte (mb, CEE_UNBOX);
1605 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1606 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1609 mono_mb_emit_byte (mb, CEE_UNBOX);
1610 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1611 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1615 mono_mb_emit_byte (mb, CEE_UNBOX);
1616 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1617 mono_mb_emit_byte (mb, CEE_LDIND_I);
1620 mono_mb_emit_byte (mb, CEE_UNBOX);
1621 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1622 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1625 mono_mb_emit_byte (mb, CEE_UNBOX);
1626 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1627 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1631 mono_mb_emit_byte (mb, CEE_UNBOX);
1632 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1633 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1636 mono_mb_emit_byte (mb, CEE_UNBOX);
1637 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1638 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1641 mono_mb_emit_byte (mb, CEE_UNBOX);
1642 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1643 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1645 case MONO_TYPE_VALUETYPE: {
1647 mono_mb_emit_byte (mb, CEE_UNBOX);
1648 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1649 mono_mb_emit_i4 (mb, class);
1650 mono_mb_emit_byte (mb, CEE_LDOBJ);
1651 mono_mb_emit_i4 (mb, class);
1655 g_warning ("type 0x%x not handled", return_type->type);
1656 g_assert_not_reached ();
1659 mono_mb_emit_byte (mb, CEE_RET);
1663 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1665 MonoMethodSignature *sig;
1666 static MonoMethodSignature *csig = NULL;
1667 MonoMethodBuilder *mb;
1673 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1674 !strcmp (method->name, "EndInvoke"));
1676 sig = method->signature;
1678 cache = method->klass->image->delegate_end_invoke_cache;
1679 if ((res = mono_marshal_find_in_cache (cache, sig)))
1682 g_assert (sig->hasthis);
1685 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1687 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1688 csig->ret = &mono_defaults.object_class->byval_arg;
1689 csig->params [0] = &mono_defaults.object_class->byval_arg;
1690 csig->params [1] = &mono_defaults.int_class->byval_arg;
1693 name = mono_signature_to_name (sig, "end_invoke");
1694 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1697 mb->method->save_lmf = 1;
1699 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1701 mono_mb_emit_ldarg (mb, 0);
1702 mono_mb_emit_ldloc (mb, params_var);
1703 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1704 emit_thread_interrupt_checkpoint (mb);
1706 if (sig->ret->type == MONO_TYPE_VOID) {
1707 mono_mb_emit_byte (mb, CEE_POP);
1708 mono_mb_emit_byte (mb, CEE_RET);
1710 mono_mb_emit_restore_result (mb, sig->ret);
1712 res = mono_mb_create_and_cache (cache, sig,
1713 mb, sig, sig->param_count + 16);
1720 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1722 MonoMethodMessage *msg;
1723 MonoTransparentProxy *this;
1724 MonoObject *res, *exc;
1725 MonoArray *out_args;
1727 this = *((MonoTransparentProxy **)params [0]);
1730 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1732 /* skip the this pointer */
1735 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1738 MonoMethodSignature *sig = method->signature;
1739 int count = sig->param_count;
1740 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1742 for (i=0; i<count; i++) {
1743 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1744 if (class->valuetype) {
1745 if (sig->params [i]->byref)
1746 mparams[i] = *((gpointer *)params [i]);
1748 mparams[i] = params [i];
1750 mparams[i] = *((gpointer**)params [i]);
1754 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
1757 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1759 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1762 mono_raise_exception ((MonoException *)exc);
1764 mono_method_return_message_restore (method, params, out_args);
1770 mono_marshal_get_remoting_invoke (MonoMethod *method)
1772 MonoMethodSignature *sig;
1773 static MonoMethodSignature *csig = NULL;
1774 MonoMethodBuilder *mb;
1781 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1784 sig = method->signature;
1786 /* we cant remote methods without this pointer */
1790 cache = method->klass->image->remoting_invoke_cache;
1791 if ((res = mono_marshal_find_in_cache (cache, method)))
1795 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1796 csig->params [0] = &mono_defaults.int_class->byval_arg;
1797 csig->params [1] = &mono_defaults.int_class->byval_arg;
1798 csig->ret = &mono_defaults.object_class->byval_arg;
1802 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1803 mb->method->save_lmf = 1;
1805 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1807 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1808 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1809 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1810 mono_mb_emit_ldloc (mb, params_var);
1811 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1812 emit_thread_interrupt_checkpoint (mb);
1814 if (sig->ret->type == MONO_TYPE_VOID) {
1815 mono_mb_emit_byte (mb, CEE_POP);
1816 mono_mb_emit_byte (mb, CEE_RET);
1818 mono_mb_emit_restore_result (mb, sig->ret);
1821 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1828 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1830 MonoMethodSignature *sig;
1831 MonoMethodBuilder *mb;
1832 MonoMethod *res, *native;
1838 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1841 sig = method->signature;
1843 /* we cant remote methods without this pointer */
1844 g_assert (sig->hasthis);
1846 cache = method->klass->image->remoting_invoke_cache;
1847 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1850 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1852 mono_mb_emit_ldarg (mb, 0);
1853 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1855 native = mono_marshal_get_remoting_invoke (method);
1857 for (i = 0; i <= sig->param_count; i++)
1858 mono_mb_emit_ldarg (mb, i);
1860 mono_mb_emit_managed_call (mb, native, native->signature);
1861 mono_mb_emit_byte (mb, CEE_RET);
1863 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1865 for (i = 0; i <= sig->param_count; i++)
1866 mono_mb_emit_ldarg (mb, i);
1868 mono_mb_emit_managed_call (mb, method, method->signature);
1869 mono_mb_emit_byte (mb, CEE_RET);
1871 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1872 mb, sig, sig->param_count + 16);
1879 * the returned method invokes all methods in a multicast delegate
1882 mono_marshal_get_delegate_invoke (MonoMethod *method)
1884 MonoMethodSignature *sig, *static_sig;
1886 MonoMethodBuilder *mb;
1892 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1893 !strcmp (method->name, "Invoke"));
1895 sig = method->signature;
1897 cache = method->klass->image->delegate_invoke_cache;
1898 if ((res = mono_marshal_find_in_cache (cache, sig)))
1901 static_sig = mono_metadata_signature_dup (sig);
1902 static_sig->hasthis = 0;
1904 name = mono_signature_to_name (sig, "invoke");
1905 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1908 /* allocate local 0 (object) */
1909 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1911 g_assert (sig->hasthis);
1915 * prev.Invoke( args .. );
1916 * return this.<target>( args .. );
1919 /* this wrapper can be used in unmanaged-managed transitions */
1920 emit_thread_interrupt_checkpoint (mb);
1922 /* get this->prev */
1923 mono_mb_emit_ldarg (mb, 0);
1924 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
1925 mono_mb_emit_byte (mb, CEE_LDIND_I );
1926 mono_mb_emit_stloc (mb, 0);
1928 /* if prev != null */
1929 mono_mb_emit_ldloc (mb, 0);
1930 mono_mb_emit_byte (mb, CEE_BRFALSE);
1933 mono_mb_emit_i4 (mb, 0);
1936 mono_mb_emit_ldloc (mb, 0);
1937 for (i = 0; i < sig->param_count; i++)
1938 mono_mb_emit_ldarg (mb, i + 1);
1939 mono_mb_emit_managed_call (mb, method, method->signature);
1940 if (sig->ret->type != MONO_TYPE_VOID)
1941 mono_mb_emit_byte (mb, CEE_POP);
1943 /* continued or prev == null */
1944 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1946 /* get this->target */
1947 mono_mb_emit_ldarg (mb, 0);
1948 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
1949 mono_mb_emit_byte (mb, CEE_LDIND_I );
1950 mono_mb_emit_stloc (mb, 0);
1952 /* if target != null */
1953 mono_mb_emit_ldloc (mb, 0);
1954 mono_mb_emit_byte (mb, CEE_BRFALSE);
1956 mono_mb_emit_i4 (mb, 0);
1958 /* then call this->method_ptr nonstatic */
1959 mono_mb_emit_ldloc (mb, 0);
1960 for (i = 0; i < sig->param_count; ++i)
1961 mono_mb_emit_ldarg (mb, i + 1);
1962 mono_mb_emit_ldarg (mb, 0);
1963 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1964 mono_mb_emit_byte (mb, CEE_LDIND_I );
1965 mono_mb_emit_byte (mb, CEE_CALLI);
1966 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
1968 mono_mb_emit_byte (mb, CEE_BR);
1970 mono_mb_emit_i4 (mb, 0);
1972 /* else [target == null] call this->method_ptr static */
1973 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1975 for (i = 0; i < sig->param_count; ++i)
1976 mono_mb_emit_ldarg (mb, i + 1);
1977 mono_mb_emit_ldarg (mb, 0);
1978 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1979 mono_mb_emit_byte (mb, CEE_LDIND_I );
1980 mono_mb_emit_byte (mb, CEE_CALLI);
1981 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
1984 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
1985 mono_mb_emit_byte (mb, CEE_RET);
1987 res = mono_mb_create_and_cache (cache, sig,
1988 mb, sig, sig->param_count + 16);
1996 MonoMethodSignature *sig;
2000 * generates IL code for the runtime invoke function
2001 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
2003 * we also catch exceptions if exc != null
2006 mono_marshal_get_runtime_invoke (MonoMethod *method)
2008 MonoMethodSignature *sig, *csig, *callsig;
2009 MonoExceptionClause *clause;
2010 MonoMethodHeader *header;
2011 MonoMethodBuilder *mb;
2012 GHashTable *cache = NULL;
2013 MonoClass *target_klass;
2014 MonoMethod *res = NULL;
2016 static MonoString *string_dummy = NULL;
2022 target_klass = method->klass;
2024 EnterCriticalSection (&marshal_mutex);
2026 if (method->string_ctor) {
2027 static GSList *strsig_list = NULL;
2031 for (item = strsig_list; item; item = item->next) {
2033 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
2039 callsig = mono_metadata_signature_dup (method->signature);
2040 callsig->ret = &mono_defaults.string_class->byval_arg;
2041 cs = g_new (CtorSigPair, 1);
2044 strsig_list = g_slist_prepend (strsig_list, cs);
2047 callsig = method->signature;
2050 cache = method->klass->image->runtime_invoke_cache;
2052 /* from mono_marshal_find_in_cache */
2053 res = g_hash_table_lookup (cache, callsig);
2054 LeaveCriticalSection (&marshal_mutex);
2060 target_klass = mono_defaults.object_class;
2062 /* to make it work with our special string constructors */
2063 if (!string_dummy) {
2064 MONO_GC_REGISTER_ROOT (string_dummy);
2065 string_dummy = mono_string_new_wrapper ("dummy");
2068 sig = method->signature;
2070 csig = mono_metadata_signature_alloc (method->klass->image, 4);
2072 csig->ret = &mono_defaults.object_class->byval_arg;
2073 csig->params [0] = &mono_defaults.object_class->byval_arg;
2074 csig->params [1] = &mono_defaults.int_class->byval_arg;
2075 csig->params [2] = &mono_defaults.int_class->byval_arg;
2076 csig->params [3] = &mono_defaults.int_class->byval_arg;
2078 name = mono_signature_to_name (callsig, "runtime_invoke");
2079 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
2082 /* allocate local 0 (object) tmp */
2083 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2084 /* allocate local 1 (object) exc */
2085 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2087 /* cond set *exc to null */
2088 mono_mb_emit_byte (mb, CEE_LDARG_2);
2089 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2090 mono_mb_emit_byte (mb, 3);
2091 mono_mb_emit_byte (mb, CEE_LDARG_2);
2092 mono_mb_emit_byte (mb, CEE_LDNULL);
2093 mono_mb_emit_byte (mb, CEE_STIND_I);
2096 if (method->string_ctor) {
2097 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2098 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2099 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
2101 mono_mb_emit_ldarg (mb, 0);
2105 for (i = 0; i < sig->param_count; i++) {
2106 MonoType *t = sig->params [i];
2109 mono_mb_emit_ldarg (mb, 1);
2111 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
2112 mono_mb_emit_byte (mb, CEE_ADD);
2114 mono_mb_emit_byte (mb, CEE_LDIND_I);
2119 type = sig->params [i]->type;
2123 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2125 case MONO_TYPE_BOOLEAN:
2127 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2130 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2133 case MONO_TYPE_CHAR:
2134 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2138 mono_mb_emit_byte (mb, CEE_LDIND_I);
2141 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2144 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2147 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2150 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2154 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2156 case MONO_TYPE_STRING:
2157 case MONO_TYPE_CLASS:
2158 case MONO_TYPE_ARRAY:
2160 case MONO_TYPE_SZARRAY:
2161 case MONO_TYPE_OBJECT:
2164 case MONO_TYPE_VALUETYPE:
2165 if (t->data.klass->enumtype) {
2166 type = t->data.klass->enum_basetype->type;
2169 mono_mb_emit_byte (mb, CEE_LDOBJ);
2170 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2173 g_assert_not_reached ();
2177 mono_mb_emit_ldarg (mb, 3);
2178 mono_mb_emit_calli (mb, callsig);
2180 if (sig->ret->byref) {
2182 g_assert_not_reached ();
2186 switch (sig->ret->type) {
2187 case MONO_TYPE_VOID:
2188 if (!method->string_ctor)
2189 mono_mb_emit_byte (mb, CEE_LDNULL);
2191 case MONO_TYPE_BOOLEAN:
2192 case MONO_TYPE_CHAR:
2205 case MONO_TYPE_VALUETYPE:
2206 /* box value types */
2207 mono_mb_emit_byte (mb, CEE_BOX);
2208 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2210 case MONO_TYPE_STRING:
2211 case MONO_TYPE_CLASS:
2212 case MONO_TYPE_ARRAY:
2213 case MONO_TYPE_SZARRAY:
2214 case MONO_TYPE_OBJECT:
2219 g_assert_not_reached ();
2222 mono_mb_emit_stloc (mb, 0);
2224 mono_mb_emit_byte (mb, CEE_LEAVE);
2226 mono_mb_emit_i4 (mb, 0);
2228 clause = g_new0 (MonoExceptionClause, 1);
2229 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2230 clause->try_len = mb->pos;
2233 clause->token_or_filter = mb->pos;
2235 mono_mb_emit_byte (mb, CEE_POP);
2236 mono_mb_emit_byte (mb, CEE_LDARG_2);
2237 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2238 mono_mb_emit_byte (mb, CEE_PREFIX1);
2239 mono_mb_emit_byte (mb, CEE_CGT_UN);
2240 mono_mb_emit_byte (mb, CEE_PREFIX1);
2241 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2243 clause->handler_offset = mb->pos;
2246 /* store exception */
2247 mono_mb_emit_stloc (mb, 1);
2249 mono_mb_emit_byte (mb, CEE_LDARG_2);
2250 mono_mb_emit_ldloc (mb, 1);
2251 mono_mb_emit_byte (mb, CEE_STIND_I);
2253 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2254 mono_mb_emit_stloc (mb, 0);
2256 mono_mb_emit_byte (mb, CEE_LEAVE);
2257 mono_mb_emit_i4 (mb, 0);
2259 clause->handler_len = mb->pos - clause->handler_offset;
2262 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2263 mono_mb_emit_ldloc (mb, 0);
2264 mono_mb_emit_byte (mb, CEE_RET);
2266 /* taken from mono_mb_create_and_cache */
2267 EnterCriticalSection (&marshal_mutex);
2269 res = g_hash_table_lookup (cache, callsig);
2270 /* Somebody may have created it before us */
2272 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2273 g_hash_table_insert (cache, callsig, res);
2274 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2277 LeaveCriticalSection (&marshal_mutex);
2278 /* end mono_mb_create_and_cache */
2282 header = ((MonoMethodNormal *)res)->header;
2283 header->num_clauses = 1;
2284 header->clauses = clause;
2290 * generates IL code to call managed methods from unmanaged code
2293 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2295 MonoMethodSignature *sig, *csig;
2296 MonoMethodBuilder *mb;
2297 MonoClass *klass = NULL;
2300 int i, pos = 0, *tmp_locals;
2301 static MonoMethodSignature *alloc_sig = NULL;
2304 g_assert (method != NULL);
2305 g_assert (!method->signature->pinvoke);
2307 cache = method->klass->image->managed_wrapper_cache;
2308 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2311 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2313 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2314 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2315 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2316 alloc_sig->pinvoke = 1;
2320 /* fime: howto free that memory ? */
2323 sig = method->signature;
2325 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2327 /* allocate local 0 (pointer) src_ptr */
2328 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2329 /* allocate local 1 (pointer) dst_ptr */
2330 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2331 /* allocate local 2 (boolean) delete_old */
2332 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2334 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2335 /* allocate local 3 to store the return value */
2336 mono_mb_add_local (mb, sig->ret);
2339 mono_mb_emit_icon (mb, 0);
2340 mono_mb_emit_byte (mb, CEE_STLOC_2);
2342 /* we copy the signature, so that we can modify it */
2343 csig = mono_metadata_signature_dup (sig);
2347 #ifdef PLATFORM_WIN32
2349 * Under windows, delegates passed to native code must use the STDCALL
2350 * calling convention.
2352 csig->call_convention = MONO_CALL_STDCALL;
2355 /* fixme: howto handle this ? */
2359 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2360 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2361 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2366 g_assert_not_reached ();
2371 /* we first do all conversions */
2372 tmp_locals = alloca (sizeof (int) * sig->param_count);
2373 for (i = 0; i < sig->param_count; i ++) {
2374 MonoType *t = sig->params [i];
2375 MonoMarshalSpec *spec = mspecs [i + 1];
2379 /* Ensure that we have marshalling info for this param */
2380 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2382 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2385 MonoMethod *marshal_native_to_managed;
2386 MonoMethod *get_instance;
2388 /* FIXME: Call CleanUpNativeData after the call */
2390 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2391 g_assert (mtype != NULL);
2392 mklass = mono_class_from_mono_type (mtype);
2393 g_assert (mklass != NULL);
2395 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2396 g_assert (marshal_native_to_managed);
2397 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2398 g_assert (get_instance);
2401 case MONO_TYPE_CLASS:
2402 case MONO_TYPE_OBJECT:
2403 case MONO_TYPE_STRING:
2404 case MONO_TYPE_ARRAY:
2405 case MONO_TYPE_SZARRAY:
2409 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2411 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2413 mono_mb_emit_byte (mb, CEE_CALL);
2414 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2416 mono_mb_emit_ldarg (mb, i);
2418 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2419 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2421 mono_mb_emit_stloc (mb, tmp_locals [i]);
2424 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2425 g_assert_not_reached ();
2432 case MONO_TYPE_CLASS: {
2433 klass = t->data.klass;
2435 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2437 if (klass->delegate) {
2438 g_assert (!t->byref);
2439 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2440 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2441 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2442 mono_mb_emit_ldarg (mb, i);
2443 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
2444 mono_mb_emit_stloc (mb, tmp_locals [i]);
2448 /* FIXME: Raise a MarshalDirectiveException here */
2449 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2451 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2452 mono_mb_emit_byte (mb, CEE_LDNULL);
2453 mono_mb_emit_stloc (mb, tmp_locals [i]);
2458 mono_mb_emit_ldarg (mb, i);
2462 /* Check for NULL and raise an exception */
2463 mono_mb_emit_byte (mb, CEE_BRTRUE);
2465 mono_mb_emit_i4 (mb, 0);
2467 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2469 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2470 mono_mb_emit_ldarg (mb, i);
2471 mono_mb_emit_byte (mb, CEE_LDIND_I);
2474 mono_mb_emit_byte (mb, CEE_STLOC_0);
2476 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2477 mono_mb_emit_stloc (mb, tmp_locals [i]);
2479 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2480 mono_mb_emit_byte (mb, CEE_BRFALSE);
2482 mono_mb_emit_i4 (mb, 0);
2484 /* Create and set dst */
2485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2486 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2487 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2488 mono_mb_emit_stloc (mb, tmp_locals [i]);
2489 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2490 mono_mb_emit_icon (mb, sizeof (MonoObject));
2491 mono_mb_emit_byte (mb, CEE_ADD);
2492 mono_mb_emit_byte (mb, CEE_STLOC_1);
2494 /* emit valuetype conversion code */
2495 emit_struct_conv (mb, klass, TRUE);
2497 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2500 case MONO_TYPE_VALUETYPE:
2502 klass = sig->params [i]->data.klass;
2503 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2504 klass->blittable || klass->enumtype)
2507 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2509 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2513 mono_mb_emit_ldarg (mb, i);
2515 mono_mb_emit_ldarg_addr (mb, i);
2516 mono_mb_emit_byte (mb, CEE_STLOC_0);
2519 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2520 mono_mb_emit_byte (mb, CEE_BRFALSE);
2522 mono_mb_emit_i4 (mb, 0);
2525 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2526 mono_mb_emit_byte (mb, CEE_STLOC_1);
2528 /* emit valuetype conversion code */
2529 emit_struct_conv (mb, klass, TRUE);
2532 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2534 case MONO_TYPE_STRING: {
2535 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2540 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2541 csig->params [i] = &mono_defaults.int_class->byval_arg;
2543 mono_mb_emit_ldarg (mb, i);
2546 case MONO_NATIVE_LPWSTR:
2547 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
2549 case MONO_NATIVE_LPSTR:
2550 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
2553 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2554 MonoException *exc = mono_get_exception_not_implemented (msg);
2557 mono_raise_exception (exc);
2561 mono_mb_emit_stloc (mb, tmp_locals [i]);
2564 case MONO_TYPE_ARRAY:
2565 case MONO_TYPE_SZARRAY:
2569 klass = mono_class_from_mono_type (t);
2571 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2572 csig->params [i] = &mono_defaults.int_class->byval_arg;
2574 g_warning ("array marshaling not implemented");
2575 g_assert_not_reached ();
2580 for (i = 0; i < sig->param_count; i++) {
2581 MonoType *t = sig->params [i];
2584 case MONO_TYPE_BOOLEAN:
2598 mono_mb_emit_ldarg (mb, i);
2600 case MONO_TYPE_STRING:
2602 mono_mb_emit_ldarg (mb, i);
2604 g_assert (tmp_locals [i]);
2605 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2608 case MONO_TYPE_CLASS:
2610 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2612 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2614 case MONO_TYPE_ARRAY:
2615 case MONO_TYPE_SZARRAY:
2616 case MONO_TYPE_OBJECT:
2618 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2620 mono_mb_emit_ldarg (mb, i);
2622 case MONO_TYPE_VALUETYPE:
2623 klass = sig->params [i]->data.klass;
2624 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2625 klass->blittable || klass->enumtype) {
2626 mono_mb_emit_ldarg (mb, i);
2630 g_assert (tmp_locals [i]);
2632 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2634 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2637 g_warning ("type 0x%02x unknown", t->type);
2638 g_assert_not_reached ();
2642 emit_thread_interrupt_checkpoint (mb);
2643 mono_mb_emit_managed_call (mb, method, NULL);
2645 /* Ensure that we have marshalling info for the return */
2646 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2648 if (!sig->ret->byref) {
2649 switch (sig->ret->type) {
2650 case MONO_TYPE_VOID:
2652 case MONO_TYPE_BOOLEAN:
2666 case MONO_TYPE_OBJECT:
2667 mono_mb_emit_byte (mb, CEE_STLOC_3);
2669 case MONO_TYPE_STRING:
2670 csig->ret = &mono_defaults.int_class->byval_arg;
2672 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
2673 mono_mb_emit_byte (mb, CEE_STLOC_3);
2675 case MONO_TYPE_VALUETYPE:
2676 klass = sig->ret->data.klass;
2677 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2678 klass->blittable || klass->enumtype)
2681 /* load pointer to returned value type */
2682 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2683 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2685 /* store the address of the source into local variable 0 */
2686 mono_mb_emit_byte (mb, CEE_STLOC_0);
2687 /* allocate space for the native struct and
2688 * store the address into dst_ptr */
2689 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2690 g_assert (retobj_var);
2691 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2692 mono_mb_emit_byte (mb, CEE_CONV_I);
2693 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2694 emit_thread_interrupt_checkpoint (mb);
2695 mono_mb_emit_byte (mb, CEE_STLOC_1);
2696 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2697 mono_mb_emit_stloc (mb, retobj_var);
2699 /* emit valuetype conversion code */
2700 emit_struct_conv (mb, klass, FALSE);
2702 case MONO_TYPE_CLASS: {
2705 klass = sig->ret->data.klass;
2707 if (klass->delegate) {
2708 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
2709 mono_mb_emit_byte (mb, CEE_STLOC_3);
2713 /* FIXME: Raise a MarshalDirectiveException here */
2714 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2716 mono_mb_emit_byte (mb, CEE_STLOC_0);
2717 /* Check for null */
2718 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2719 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2720 mono_mb_emit_byte (mb, CEE_LDNULL);
2721 mono_mb_emit_byte (mb, CEE_STLOC_3);
2722 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2724 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2727 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2728 mono_mb_emit_icon (mb, sizeof (MonoObject));
2729 mono_mb_emit_byte (mb, CEE_ADD);
2730 mono_mb_emit_byte (mb, CEE_STLOC_0);
2732 /* Allocate and set dest */
2733 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2734 mono_mb_emit_byte (mb, CEE_CONV_I);
2735 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2736 emit_thread_interrupt_checkpoint (mb);
2737 mono_mb_emit_byte (mb, CEE_DUP);
2738 mono_mb_emit_byte (mb, CEE_STLOC_1);
2739 mono_mb_emit_byte (mb, CEE_STLOC_3);
2741 emit_struct_conv (mb, klass, FALSE);
2743 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2747 g_warning ("return type 0x%02x unknown", sig->ret->type);
2748 g_assert_not_reached ();
2751 mono_mb_emit_byte (mb, CEE_STLOC_3);
2754 /* Convert byref arguments back */
2755 for (i = 0; i < sig->param_count; i ++) {
2756 MonoType *t = sig->params [i];
2762 case MONO_TYPE_CLASS: {
2765 klass = t->data.klass;
2767 /* Check for null */
2768 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2769 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2770 mono_mb_emit_ldarg (mb, i);
2771 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2772 mono_mb_emit_byte (mb, CEE_STIND_I);
2773 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2775 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2778 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2779 mono_mb_emit_icon (mb, sizeof (MonoObject));
2780 mono_mb_emit_byte (mb, CEE_ADD);
2781 mono_mb_emit_byte (mb, CEE_STLOC_0);
2783 /* Allocate and set dest */
2784 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2785 mono_mb_emit_byte (mb, CEE_CONV_I);
2786 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2787 emit_thread_interrupt_checkpoint (mb);
2788 mono_mb_emit_byte (mb, CEE_STLOC_1);
2790 /* Update argument pointer */
2791 mono_mb_emit_ldarg (mb, i);
2792 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2793 mono_mb_emit_byte (mb, CEE_STIND_I);
2795 /* emit valuetype conversion code */
2796 emit_struct_conv (mb, klass, FALSE);
2798 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2801 case MONO_TYPE_VALUETYPE: {
2804 klass = t->data.klass;
2806 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2807 klass->blittable || klass->enumtype) {
2811 /* Check for null */
2812 mono_mb_emit_ldarg (mb, i);
2813 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2816 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2817 mono_mb_emit_byte (mb, CEE_STLOC_0);
2820 mono_mb_emit_ldarg (mb, i);
2821 mono_mb_emit_byte (mb, CEE_STLOC_1);
2823 /* emit valuetype conversion code */
2824 emit_struct_conv (mb, klass, FALSE);
2826 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2833 mono_mb_emit_ldloc (mb, retobj_var);
2834 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2835 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2836 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2839 if (!MONO_TYPE_IS_VOID(sig->ret))
2840 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2841 mono_mb_emit_byte (mb, CEE_RET);
2845 res = mono_mb_create_and_cache (cache, method,
2846 mb, csig, sig->param_count + 16);
2848 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2851 /* 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)); */
2857 * mono_marshal_get_ldfld_wrapper:
2858 * @type: the type of the field
2860 * This method generates a function which can be use to load a field with type
2861 * @type from an object. The generated function has the following signature:
2862 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
2865 mono_marshal_get_ldfld_wrapper (MonoType *type)
2867 MonoMethodSignature *sig, *csig;
2868 MonoMethodBuilder *mb;
2871 static GHashTable *ldfld_hash = NULL;
2873 int t, pos0, pos1 = 0;
2878 if (type->type == MONO_TYPE_SZARRAY) {
2879 klass = mono_defaults.array_class;
2880 } else if (type->type == MONO_TYPE_VALUETYPE) {
2881 klass = type->data.klass;
2882 if (klass->enumtype) {
2883 t = klass->enum_basetype->type;
2884 klass = mono_class_from_mono_type (klass->enum_basetype);
2886 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
2887 t == MONO_TYPE_CLASS) {
2888 klass = mono_defaults.object_class;
2889 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
2890 klass = mono_defaults.int_class;
2892 klass = mono_class_from_mono_type (type);
2895 klass = mono_defaults.int_class;
2898 EnterCriticalSection (&marshal_mutex);
2900 ldfld_hash = g_hash_table_new (NULL, NULL);
2901 res = g_hash_table_lookup (ldfld_hash, klass);
2902 LeaveCriticalSection (&marshal_mutex);
2906 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
2907 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
2910 mb->method->save_lmf = 1;
2912 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
2913 sig->params [0] = &mono_defaults.object_class->byval_arg;
2914 sig->params [1] = &mono_defaults.int_class->byval_arg;
2915 sig->params [2] = &mono_defaults.int_class->byval_arg;
2916 sig->params [3] = &mono_defaults.int_class->byval_arg;
2917 sig->ret = &klass->byval_arg;
2919 mono_mb_emit_ldarg (mb, 0);
2920 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
2922 mono_mb_emit_ldarg (mb, 0);
2923 mono_mb_emit_ldarg (mb, 1);
2924 mono_mb_emit_ldarg (mb, 2);
2926 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
2927 csig->params [0] = &mono_defaults.object_class->byval_arg;
2928 csig->params [1] = &mono_defaults.int_class->byval_arg;
2929 csig->params [2] = &mono_defaults.int_class->byval_arg;
2930 csig->ret = &klass->this_arg;
2933 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
2934 emit_thread_interrupt_checkpoint (mb);
2936 if (klass->valuetype) {
2937 mono_mb_emit_byte (mb, CEE_UNBOX);
2938 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2939 mono_mb_emit_byte (mb, CEE_BR);
2941 mono_mb_emit_i4 (mb, 0);
2943 mono_mb_emit_byte (mb, CEE_RET);
2947 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2949 mono_mb_emit_ldarg (mb, 0);
2950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2951 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
2952 mono_mb_emit_ldarg (mb, 3);
2953 mono_mb_emit_byte (mb, CEE_ADD);
2955 if (klass->valuetype)
2956 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2961 case MONO_TYPE_BOOLEAN:
2962 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2964 case MONO_TYPE_CHAR:
2967 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2971 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2975 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2978 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2981 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2983 case MONO_TYPE_ARRAY:
2985 case MONO_TYPE_FNPTR:
2986 case MONO_TYPE_SZARRAY:
2987 case MONO_TYPE_OBJECT:
2988 case MONO_TYPE_CLASS:
2989 case MONO_TYPE_STRING:
2992 mono_mb_emit_byte (mb, CEE_LDIND_I);
2994 case MONO_TYPE_VALUETYPE:
2995 g_assert (!klass->enumtype);
2996 mono_mb_emit_byte (mb, CEE_LDOBJ);
2997 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3000 g_warning ("type %x not implemented", type->type);
3001 g_assert_not_reached ();
3004 mono_mb_emit_byte (mb, CEE_RET);
3006 res = mono_mb_create_and_cache (ldfld_hash, klass,
3007 mb, sig, sig->param_count + 16);
3014 * mono_marshal_get_stfld_wrapper:
3015 * @type: the type of the field
3017 * This method generates a function which can be use to store a field with type
3018 * @type. The generated function has the following signature:
3019 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
3022 mono_marshal_get_stfld_wrapper (MonoType *type)
3024 MonoMethodSignature *sig, *csig;
3025 MonoMethodBuilder *mb;
3028 static GHashTable *stfld_hash = NULL;
3035 if (type->type == MONO_TYPE_SZARRAY) {
3036 klass = mono_defaults.array_class;
3037 } else if (type->type == MONO_TYPE_VALUETYPE) {
3038 klass = type->data.klass;
3039 if (klass->enumtype) {
3040 t = klass->enum_basetype->type;
3041 klass = mono_class_from_mono_type (klass->enum_basetype);
3043 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3044 t == MONO_TYPE_CLASS) {
3045 klass = mono_defaults.object_class;
3046 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3047 klass = mono_defaults.int_class;
3049 klass = mono_class_from_mono_type (type);
3052 klass = mono_defaults.int_class;
3055 EnterCriticalSection (&marshal_mutex);
3057 stfld_hash = g_hash_table_new (NULL, NULL);
3058 res = g_hash_table_lookup (stfld_hash, klass);
3059 LeaveCriticalSection (&marshal_mutex);
3063 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
3064 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
3067 mb->method->save_lmf = 1;
3069 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
3070 sig->params [0] = &mono_defaults.object_class->byval_arg;
3071 sig->params [1] = &mono_defaults.int_class->byval_arg;
3072 sig->params [2] = &mono_defaults.int_class->byval_arg;
3073 sig->params [3] = &mono_defaults.int_class->byval_arg;
3074 sig->params [4] = &klass->byval_arg;
3075 sig->ret = &mono_defaults.void_class->byval_arg;
3077 mono_mb_emit_ldarg (mb, 0);
3078 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3080 mono_mb_emit_ldarg (mb, 0);
3081 mono_mb_emit_ldarg (mb, 1);
3082 mono_mb_emit_ldarg (mb, 2);
3083 mono_mb_emit_ldarg (mb, 4);
3085 if (klass->valuetype) {
3086 mono_mb_emit_byte (mb, CEE_BOX);
3087 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3090 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3091 csig->params [0] = &mono_defaults.object_class->byval_arg;
3092 csig->params [1] = &mono_defaults.int_class->byval_arg;
3093 csig->params [2] = &mono_defaults.int_class->byval_arg;
3094 csig->params [3] = &klass->this_arg;
3095 csig->ret = &mono_defaults.void_class->byval_arg;
3098 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
3099 emit_thread_interrupt_checkpoint (mb);
3101 mono_mb_emit_byte (mb, CEE_RET);
3103 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3105 mono_mb_emit_ldarg (mb, 0);
3106 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3107 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3108 mono_mb_emit_ldarg (mb, 3);
3109 mono_mb_emit_byte (mb, CEE_ADD);
3110 mono_mb_emit_ldarg (mb, 4);
3115 case MONO_TYPE_BOOLEAN:
3116 mono_mb_emit_byte (mb, CEE_STIND_I1);
3118 case MONO_TYPE_CHAR:
3121 mono_mb_emit_byte (mb, CEE_STIND_I2);
3125 mono_mb_emit_byte (mb, CEE_STIND_I4);
3129 mono_mb_emit_byte (mb, CEE_STIND_I8);
3132 mono_mb_emit_byte (mb, CEE_STIND_R4);
3135 mono_mb_emit_byte (mb, CEE_STIND_R8);
3137 case MONO_TYPE_ARRAY:
3139 case MONO_TYPE_FNPTR:
3140 case MONO_TYPE_SZARRAY:
3141 case MONO_TYPE_OBJECT:
3142 case MONO_TYPE_CLASS:
3143 case MONO_TYPE_STRING:
3146 mono_mb_emit_byte (mb, CEE_STIND_I);
3148 case MONO_TYPE_VALUETYPE:
3149 g_assert (!klass->enumtype);
3150 mono_mb_emit_byte (mb, CEE_STOBJ);
3151 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3154 g_warning ("type %x not implemented", type->type);
3155 g_assert_not_reached ();
3158 mono_mb_emit_byte (mb, CEE_RET);
3160 res = mono_mb_create_and_cache (stfld_hash, klass,
3161 mb, sig, sig->param_count + 16);
3168 * generates IL code for the icall wrapper (the generated method
3169 * calls the unmanaged code in func)
3172 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3174 MonoMethodSignature *csig;
3175 MonoMethodBuilder *mb;
3179 g_assert (sig->pinvoke);
3181 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3183 mb->method->save_lmf = 1;
3185 /* we copy the signature, so that we can modify it */
3188 mono_mb_emit_byte (mb, CEE_LDARG_0);
3190 for (i = 0; i < sig->param_count; i++)
3191 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3193 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3194 emit_thread_interrupt_checkpoint (mb);
3195 mono_mb_emit_byte (mb, CEE_RET);
3197 csig = mono_metadata_signature_dup (sig);
3200 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3207 * mono_marshal_get_native_wrapper:
3208 * @method: The MonoMethod to wrap.
3210 * generates IL code for the pinvoke wrapper (the generated method
3211 * calls the unmanaged code in method->addr)
3214 mono_marshal_get_native_wrapper (MonoMethod *method)
3216 MonoMethodSignature *sig, *csig;
3217 MonoMethodPInvoke *piinfo;
3218 MonoMethodBuilder *mb;
3219 MonoMarshalSpec **mspecs;
3223 gboolean pinvoke = FALSE;
3224 int i, pos, argnum, *tmp_locals;
3226 const char *exc_class = "MissingMethodException";
3227 const char *exc_arg = NULL;
3229 g_assert (method != NULL);
3230 g_assert (method->signature->pinvoke);
3232 cache = method->klass->image->native_wrapper_cache;
3233 if ((res = mono_marshal_find_in_cache (cache, method)))
3236 sig = method->signature;
3238 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3239 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3242 if (!method->addr) {
3244 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
3246 method->addr = mono_lookup_internal_call (method);
3249 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3251 mb->method->save_lmf = 1;
3253 piinfo = (MonoMethodPInvoke *)method;
3255 if (!method->addr) {
3256 mono_mb_emit_exception (mb, exc_class, exc_arg);
3257 csig = mono_metadata_signature_dup (sig);
3259 res = mono_mb_create_and_cache (cache, method,
3260 mb, csig, csig->param_count + 16);
3265 /* internal calls: we simply push all arguments and call the method (no conversions) */
3266 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3268 /* hack - string constructors returns a value */
3269 if (method->string_ctor) {
3270 csig = mono_metadata_signature_dup (sig);
3271 csig->ret = &mono_defaults.string_class->byval_arg;
3276 mono_mb_emit_byte (mb, CEE_LDARG_0);
3278 for (i = 0; i < sig->param_count; i++)
3279 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3281 g_assert (method->addr);
3282 mono_mb_emit_native_call (mb, csig, method->addr);
3283 emit_thread_interrupt_checkpoint (mb);
3284 mono_mb_emit_byte (mb, CEE_RET);
3286 csig = mono_metadata_signature_dup (csig);
3288 res = mono_mb_create_and_cache (cache, method,
3289 mb, csig, csig->param_count + 16);
3296 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
3297 mono_method_get_marshal_info (method, mspecs);
3299 /* pinvoke: we need to convert the arguments if necessary */
3301 /* we copy the signature, so that we can set pinvoke to 0 */
3302 csig = mono_metadata_signature_dup (sig);
3305 /* we allocate local for use with emit_struct_conv() */
3306 /* allocate local 0 (pointer) src_ptr */
3307 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3308 /* allocate local 1 (pointer) dst_ptr */
3309 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3310 /* allocate local 2 (boolean) delete_old */
3311 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3313 /* delete_old = FALSE */
3314 mono_mb_emit_icon (mb, 0);
3315 mono_mb_emit_byte (mb, CEE_STLOC_2);
3317 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3318 /* allocate local 3 to store the return value */
3319 mono_mb_add_local (mb, sig->ret);
3322 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3323 /* Return type custom marshaling */
3325 * Since we can't determine the return type of the unmanaged function,
3326 * we assume it returns a pointer, and pass that pointer to
3327 * MarshalNativeToManaged.
3329 csig->ret = &mono_defaults.int_class->byval_arg;
3332 /* we first do all conversions */
3333 tmp_locals = alloca (sizeof (int) * sig->param_count);
3335 for (i = 0; i < sig->param_count; i ++) {
3336 MonoType *t = sig->params [i];
3337 MonoMarshalSpec *spec = mspecs [i + 1];
3339 argnum = i + sig->hasthis;
3342 /* Ensure that we have marshalling info for this param */
3343 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3345 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3348 MonoMethod *marshal_managed_to_native;
3349 MonoMethod *get_instance;
3351 /* FIXME: Call CleanUpNativeData after the call */
3353 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3354 g_assert (mtype != NULL);
3355 mklass = mono_class_from_mono_type (mtype);
3356 g_assert (mklass != NULL);
3358 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3359 g_assert (marshal_managed_to_native);
3360 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3361 g_assert (get_instance);
3364 case MONO_TYPE_CLASS:
3365 case MONO_TYPE_OBJECT:
3366 case MONO_TYPE_STRING:
3367 case MONO_TYPE_ARRAY:
3368 case MONO_TYPE_SZARRAY:
3369 case MONO_TYPE_VALUETYPE:
3373 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3375 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3377 mono_mb_emit_byte (mb, CEE_CALL);
3378 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3380 mono_mb_emit_ldarg (mb, argnum);
3382 if (t->type == MONO_TYPE_VALUETYPE) {
3384 * Since we can't determine the type of the argument, we
3385 * will assume the unmanaged function takes a pointer.
3387 csig->params [i] = &mono_defaults.int_class->byval_arg;
3389 mono_mb_emit_byte (mb, CEE_BOX);
3390 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3393 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3394 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3396 mono_mb_emit_stloc (mb, tmp_locals [i]);
3400 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3401 g_assert_not_reached ();
3407 if (spec && spec->native == MONO_NATIVE_ASANY) {
3408 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
3410 g_assert (t->type == MONO_TYPE_OBJECT);
3411 g_assert (!t->byref);
3413 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3414 mono_mb_emit_ldarg (mb, argnum);
3415 mono_mb_emit_icon (mb, encoding);
3416 mono_mb_emit_icall (mb, mono_marshal_asany);
3417 mono_mb_emit_stloc (mb, tmp_locals [i]);
3422 case MONO_TYPE_VALUETYPE:
3423 klass = t->data.klass;
3425 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3426 klass->blittable || klass->enumtype)
3429 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3431 /* store the address of the source into local variable 0 */
3433 mono_mb_emit_ldarg (mb, argnum);
3435 mono_mb_emit_ldarg_addr (mb, argnum);
3437 mono_mb_emit_byte (mb, CEE_STLOC_0);
3439 /* allocate space for the native struct and
3440 * store the address into local variable 1 (dest) */
3441 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3442 mono_mb_emit_byte (mb, CEE_PREFIX1);
3443 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3444 mono_mb_emit_stloc (mb, tmp_locals [i]);
3447 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3448 mono_mb_emit_byte (mb, CEE_BRFALSE);
3450 mono_mb_emit_i4 (mb, 0);
3454 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3455 mono_mb_emit_byte (mb, CEE_STLOC_1);
3457 /* emit valuetype conversion code */
3458 emit_struct_conv (mb, klass, FALSE);
3461 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3463 case MONO_TYPE_STRING: {
3464 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3466 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3467 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3470 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3473 mono_mb_emit_ldarg (mb, argnum);
3474 mono_mb_emit_byte (mb, CEE_LDIND_I);
3476 mono_mb_emit_ldarg (mb, argnum);
3480 case MONO_NATIVE_LPWSTR:
3481 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPWSTR));
3483 case MONO_NATIVE_LPSTR:
3484 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
3486 case MONO_NATIVE_LPTSTR:
3487 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPTSTR));
3490 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3491 MonoException *exc = mono_get_exception_not_implemented (msg);
3494 mono_raise_exception (exc);
3498 mono_mb_emit_stloc (mb, tmp_locals [i]);
3501 case MONO_TYPE_CLASS:
3502 case MONO_TYPE_OBJECT:
3503 klass = t->data.klass;
3505 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3506 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3508 if (klass->delegate) {
3509 g_assert (!t->byref);
3510 mono_mb_emit_ldarg (mb, argnum);
3511 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
3512 mono_mb_emit_stloc (mb, tmp_locals [i]);
3513 } else if (klass == mono_defaults.stringbuilder_class) {
3514 MonoMarshalNative encoding = mono_marshal_get_stringbuilder_to_ptr_encoding (piinfo, spec);
3516 g_assert (!t->byref);
3517 mono_mb_emit_ldarg (mb, argnum);
3520 mono_mb_emit_icall (mb, conv_to_icall (encoding));
3522 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3523 MonoException *exc = mono_get_exception_not_implemented (msg);
3526 mono_raise_exception (exc);
3529 mono_mb_emit_stloc (mb, tmp_locals [i]);
3531 mono_mb_emit_byte (mb, CEE_LDNULL);
3532 mono_mb_emit_stloc (mb, tmp_locals [i]);
3535 /* we dont need any conversions for out parameters */
3536 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3539 mono_mb_emit_ldarg (mb, argnum);
3540 mono_mb_emit_byte (mb, CEE_LDIND_I);
3543 mono_mb_emit_ldarg (mb, argnum);
3544 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3545 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3548 /* store the address of the source into local variable 0 */
3549 mono_mb_emit_byte (mb, CEE_STLOC_0);
3550 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3551 mono_mb_emit_byte (mb, CEE_BRFALSE);
3553 mono_mb_emit_i4 (mb, 0);
3555 /* allocate space for the native struct and store the address */
3556 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3557 mono_mb_emit_byte (mb, CEE_PREFIX1);
3558 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3559 mono_mb_emit_stloc (mb, tmp_locals [i]);
3561 /* set the src_ptr */
3562 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3563 mono_mb_emit_icon (mb, sizeof (MonoObject));
3564 mono_mb_emit_byte (mb, CEE_ADD);
3565 mono_mb_emit_byte (mb, CEE_STLOC_0);
3568 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3569 mono_mb_emit_byte (mb, CEE_STLOC_1);
3571 /* emit valuetype conversion code */
3572 emit_struct_conv (mb, klass, FALSE);
3574 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3578 case MONO_TYPE_ARRAY:
3579 case MONO_TYPE_SZARRAY:
3583 klass = mono_class_from_mono_type (t);
3585 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3586 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3588 if (klass->element_class == mono_defaults.string_class) {
3589 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
3591 mono_mb_emit_ldarg (mb, argnum);
3594 case MONO_NATIVE_LPSTR:
3595 mono_mb_emit_icall (mb, mono_marshal_string_array);
3597 case MONO_NATIVE_LPWSTR:
3598 mono_mb_emit_icall (mb, mono_marshal_string_array_to_unicode);
3601 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3602 MonoException *exc = mono_get_exception_not_implemented (msg);
3605 mono_raise_exception (exc);
3608 mono_mb_emit_stloc (mb, tmp_locals [i]);
3610 else if (klass->element_class->blittable) {
3611 mono_mb_emit_ldarg (mb, argnum);
3612 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
3613 mono_mb_emit_stloc (mb, tmp_locals [i]);
3617 guint32 label1, label2, label3;
3618 int index_var, dest_ptr, esize;
3619 MonoMarshalNative encoding = mono_marshal_get_stringbuilder_to_ptr_encoding (piinfo, spec);
3621 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3623 eklass = klass->element_class;
3626 mono_mb_emit_ldarg (mb, argnum);
3627 mono_mb_emit_stloc (mb, tmp_locals [i]);
3628 mono_mb_emit_ldarg (mb, argnum);
3629 mono_mb_emit_byte (mb, CEE_BRFALSE);
3631 mono_mb_emit_i4 (mb, 0);
3633 if (eklass == mono_defaults.stringbuilder_class) {
3634 if (encoding == -1) {
3635 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3636 MonoException *exc = mono_get_exception_not_implemented (msg);
3639 mono_raise_exception (exc);
3643 if (eklass == mono_defaults.stringbuilder_class)
3644 esize = sizeof (gpointer);
3646 esize = mono_class_native_size (eklass, NULL);
3648 /* allocate space for the native struct and store the address */
3649 mono_mb_emit_icon (mb, esize);
3650 mono_mb_emit_ldarg (mb, argnum);
3651 mono_mb_emit_byte (mb, CEE_LDLEN);
3652 mono_mb_emit_byte (mb, CEE_MUL);
3653 mono_mb_emit_byte (mb, CEE_PREFIX1);
3654 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3655 mono_mb_emit_stloc (mb, tmp_locals [i]);
3657 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3658 mono_mb_emit_stloc (mb, dest_ptr);
3660 /* Emit marshalling loop */
3661 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3662 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3663 mono_mb_emit_stloc (mb, index_var);
3665 mono_mb_emit_ldloc (mb, index_var);
3666 mono_mb_emit_ldarg (mb, argnum);
3667 mono_mb_emit_byte (mb, CEE_LDLEN);
3668 mono_mb_emit_byte (mb, CEE_BGE);
3670 mono_mb_emit_i4 (mb, 0);
3672 /* Emit marshalling code */
3674 if (eklass == mono_defaults.stringbuilder_class) {
3675 mono_mb_emit_ldloc (mb, dest_ptr);
3676 mono_mb_emit_ldarg (mb, argnum);
3677 mono_mb_emit_ldloc (mb, index_var);
3678 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3679 mono_mb_emit_icall (mb, conv_to_icall (encoding));
3680 mono_mb_emit_byte (mb, CEE_STIND_I);
3683 /* set the src_ptr */
3684 mono_mb_emit_ldarg (mb, argnum);
3685 mono_mb_emit_ldloc (mb, index_var);
3686 mono_mb_emit_byte (mb, CEE_LDELEMA);
3687 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3688 mono_mb_emit_byte (mb, CEE_STLOC_0);
3691 mono_mb_emit_ldloc (mb, dest_ptr);
3692 mono_mb_emit_byte (mb, CEE_STLOC_1);
3694 /* emit valuetype conversion code */
3695 emit_struct_conv (mb, eklass, FALSE);
3698 mono_mb_emit_add_to_local (mb, index_var, 1);
3699 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
3701 mono_mb_emit_byte (mb, CEE_BR);
3702 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3704 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3705 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3709 case MONO_TYPE_BOOLEAN: {
3710 MonoType *local_type;
3711 int variant_bool = 0;
3715 local_type = &mono_defaults.int32_class->byval_arg;
3717 switch (spec->native) {
3718 case MONO_NATIVE_I1:
3719 local_type = &mono_defaults.byte_class->byval_arg;
3721 case MONO_NATIVE_VARIANTBOOL:
3722 local_type = &mono_defaults.int16_class->byval_arg;
3726 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3730 csig->params [argnum] = &mono_defaults.int_class->byval_arg;
3731 tmp_locals [i] = mono_mb_add_local (mb, local_type);
3732 mono_mb_emit_ldarg (mb, argnum);
3733 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3735 mono_mb_emit_byte (mb, CEE_NEG);
3736 mono_mb_emit_stloc (mb, tmp_locals [i]);
3742 /* push all arguments */
3745 mono_mb_emit_byte (mb, CEE_LDARG_0);
3747 for (i = 0; i < sig->param_count; i++) {
3748 MonoType *t = sig->params [i];
3749 MonoMarshalSpec *spec = mspecs [i + 1];
3751 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3752 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3755 if (spec && spec->native == MONO_NATIVE_ASANY) {
3756 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3759 argnum = i + sig->hasthis;
3762 case MONO_TYPE_BOOLEAN:
3764 g_assert (tmp_locals [i]);
3765 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3767 mono_mb_emit_ldarg (mb, argnum);
3782 mono_mb_emit_ldarg (mb, argnum);
3784 case MONO_TYPE_VALUETYPE:
3785 klass = sig->params [i]->data.klass;
3786 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3787 klass->blittable || klass->enumtype) {
3788 mono_mb_emit_ldarg (mb, argnum);
3791 g_assert (tmp_locals [i]);
3792 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3794 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3795 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3796 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3799 case MONO_TYPE_STRING:
3800 case MONO_TYPE_CLASS:
3801 case MONO_TYPE_OBJECT:
3802 g_assert (tmp_locals [i]);
3804 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3806 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3808 case MONO_TYPE_CHAR:
3809 /* fixme: dont know how to marshal that. We cant simply
3810 * convert it to a one byte UTF8 character, because an
3811 * unicode character may need more that one byte in UTF8 */
3812 mono_mb_emit_ldarg (mb, argnum);
3814 case MONO_TYPE_ARRAY:
3815 case MONO_TYPE_SZARRAY:
3817 mono_mb_emit_ldarg (mb, argnum);
3819 g_assert (tmp_locals [i]);
3820 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3823 case MONO_TYPE_TYPEDBYREF:
3824 case MONO_TYPE_FNPTR:
3826 g_warning ("type 0x%02x unknown", t->type);
3827 g_assert_not_reached ();
3832 /* call the native method */
3833 mono_mb_emit_native_call (mb, csig, method->addr);
3835 /* Set LastError if needed */
3836 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
3837 MonoMethodSignature *lasterr_sig;
3839 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3840 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
3841 lasterr_sig->pinvoke = 1;
3843 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
3846 /* Ensure that we have marshalling info for the return */
3847 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3849 /* convert the result */
3850 if (!sig->ret->byref) {
3851 MonoMarshalSpec *spec = mspecs [0];
3852 type = sig->ret->type;
3854 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3857 MonoMethod *marshal_native_to_managed;
3858 MonoMethod *get_instance;
3860 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3861 g_assert (mtype != NULL);
3862 mklass = mono_class_from_mono_type (mtype);
3863 g_assert (mklass != NULL);
3865 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3866 g_assert (marshal_native_to_managed);
3867 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3868 g_assert (get_instance);
3871 case MONO_TYPE_CLASS:
3872 case MONO_TYPE_OBJECT:
3873 case MONO_TYPE_STRING:
3874 case MONO_TYPE_ARRAY:
3875 case MONO_TYPE_SZARRAY:
3876 case MONO_TYPE_VALUETYPE:
3877 if (type == MONO_TYPE_VALUETYPE) {
3878 /* local 3 can't hold a pointer */
3879 mono_mb_emit_byte (mb, CEE_STLOC_0);
3882 mono_mb_emit_byte (mb, CEE_STLOC_3);
3884 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3886 mono_mb_emit_byte (mb, CEE_CALL);
3887 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3889 if (type == MONO_TYPE_VALUETYPE)
3890 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3892 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3894 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3895 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3897 if (type == MONO_TYPE_VALUETYPE) {
3898 mono_mb_emit_byte (mb, CEE_UNBOX);
3899 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3901 mono_mb_emit_byte (mb, CEE_STLOC_3);
3904 g_warning ("custom marshalling of type %x is currently not supported", type);
3905 g_assert_not_reached ();
3912 case MONO_TYPE_VOID:
3927 /* no conversions necessary */
3928 mono_mb_emit_byte (mb, CEE_STLOC_3);
3930 case MONO_TYPE_BOOLEAN:
3931 /* maybe we need to make sure that it fits within 8 bits */
3932 mono_mb_emit_byte (mb, CEE_STLOC_3);
3934 case MONO_TYPE_VALUETYPE:
3935 klass = sig->ret->data.klass;
3936 if (klass->enumtype) {
3937 type = sig->ret->data.klass->enum_basetype->type;
3941 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3943 mono_mb_emit_byte (mb, CEE_STLOC_3);
3946 /* load pointer to returned value type */
3947 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3948 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3949 /* store the address of the source into local variable 0 */
3950 mono_mb_emit_byte (mb, CEE_STLOC_0);
3952 mono_mb_emit_ldloc_addr (mb, 3);
3953 mono_mb_emit_byte (mb, CEE_STLOC_1);
3955 /* emit valuetype conversion code */
3956 emit_struct_conv (mb, sig->ret->data.klass, TRUE);
3958 case MONO_TYPE_STRING:
3959 mono_mb_emit_byte (mb, CEE_STLOC_0);
3960 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3963 switch (spec->native) {
3964 case MONO_NATIVE_LPWSTR:
3965 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
3968 g_warning ("marshalling conversion not implemented");
3969 g_assert_not_reached ();
3972 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
3974 mono_mb_emit_byte (mb, CEE_STLOC_3);
3976 /* free the string */
3977 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3978 mono_mb_emit_icall (mb, g_free);
3980 case MONO_TYPE_CLASS:
3981 case MONO_TYPE_OBJECT:
3982 klass = sig->ret->data.klass;
3985 mono_mb_emit_byte (mb, CEE_STLOC_0);
3987 mono_mb_emit_byte (mb, CEE_LDNULL);
3988 mono_mb_emit_byte (mb, CEE_STLOC_3);
3991 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3992 mono_mb_emit_byte (mb, CEE_BRFALSE);
3994 mono_mb_emit_i4 (mb, 0);
3996 /* allocate result object */
3998 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3999 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4000 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4001 mono_mb_emit_byte (mb, CEE_STLOC_3);
4005 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4006 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4007 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4008 mono_mb_emit_icon (mb, sizeof (MonoObject));
4009 mono_mb_emit_byte (mb, CEE_ADD);
4010 mono_mb_emit_byte (mb, CEE_STLOC_1);
4012 /* emit conversion code */
4013 emit_struct_conv (mb, klass, TRUE);
4015 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4017 case MONO_TYPE_ARRAY:
4018 case MONO_TYPE_SZARRAY:
4019 /* fixme: we need conversions here */
4020 mono_mb_emit_byte (mb, CEE_STLOC_3);
4022 case MONO_TYPE_CHAR:
4023 /* fixme: we need conversions here */
4024 mono_mb_emit_byte (mb, CEE_STLOC_3);
4026 case MONO_TYPE_TYPEDBYREF:
4027 case MONO_TYPE_FNPTR:
4029 g_warning ("return type 0x%02x unknown", sig->ret->type);
4030 g_assert_not_reached ();
4034 mono_mb_emit_byte (mb, CEE_STLOC_3);
4038 * Need to call this after converting the result since MONO_VTADDR needs
4039 * to be adjacent to the call instruction.
4041 emit_thread_interrupt_checkpoint (mb);
4043 /* we need to convert byref arguments back and free string arrays */
4044 for (i = 0; i < sig->param_count; i++) {
4045 MonoType *t = sig->params [i];
4046 MonoMarshalSpec *spec = mspecs [i + 1];
4048 argnum = i + sig->hasthis;
4050 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
4053 MonoMethod *get_instance;
4054 MonoMethod *cleanup_native;
4056 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
4057 g_assert (mtype != NULL);
4058 mklass = mono_class_from_mono_type (mtype);
4059 g_assert (mklass != NULL);
4061 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
4062 g_assert (get_instance);
4063 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
4064 g_assert (get_instance);
4067 case MONO_TYPE_CLASS:
4068 case MONO_TYPE_OBJECT:
4069 case MONO_TYPE_STRING:
4070 case MONO_TYPE_ARRAY:
4071 case MONO_TYPE_SZARRAY:
4072 case MONO_TYPE_VALUETYPE:
4073 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
4075 mono_mb_emit_byte (mb, CEE_CALL);
4076 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
4078 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4080 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4081 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
4086 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4087 g_assert_not_reached ();
4093 if (spec && spec->native == MONO_NATIVE_ASANY) {
4094 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, NULL);
4096 mono_mb_emit_ldarg (mb, argnum);
4097 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4098 mono_mb_emit_icon (mb, encoding);
4099 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4104 case MONO_TYPE_STRING:
4105 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4106 mono_mb_emit_ldarg (mb, argnum);
4107 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4108 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
4109 mono_mb_emit_byte (mb, CEE_STIND_I);
4111 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4112 mono_mb_emit_icall (mb, g_free);
4115 case MONO_TYPE_CLASS:
4116 case MONO_TYPE_OBJECT:
4117 if (t->data.klass == mono_defaults.stringbuilder_class) {
4119 MonoMarshalNative encoding;
4121 encoding = mono_marshal_get_ptr_to_stringbuilder_encoding (piinfo, spec, &need_free);
4123 g_assert (!t->byref);
4124 g_assert (encoding != -1);
4126 mono_mb_emit_ldarg (mb, argnum);
4127 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4129 mono_mb_emit_icall (mb, conv_to_icall (encoding));
4132 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4133 mono_mb_emit_icall (mb, g_free);
4138 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4141 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4142 /* allocate a new object new object */
4143 mono_mb_emit_ldarg (mb, argnum);
4144 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4145 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4146 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4147 mono_mb_emit_byte (mb, CEE_STIND_I);
4150 /* dst = *argument */
4151 mono_mb_emit_ldarg (mb, argnum);
4154 mono_mb_emit_byte (mb, CEE_LDIND_I);
4156 mono_mb_emit_byte (mb, CEE_STLOC_1);
4158 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4159 mono_mb_emit_byte (mb, CEE_BRFALSE);
4161 mono_mb_emit_i4 (mb, 0);
4163 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4164 mono_mb_emit_icon (mb, sizeof (MonoObject));
4165 mono_mb_emit_byte (mb, CEE_ADD);
4166 mono_mb_emit_byte (mb, CEE_STLOC_1);
4168 /* src = tmp_locals [i] */
4169 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4170 mono_mb_emit_byte (mb, CEE_STLOC_0);
4172 /* emit valuetype conversion code */
4173 emit_struct_conv (mb, klass, TRUE);
4175 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4177 case MONO_TYPE_VALUETYPE:
4181 klass = t->data.klass;
4182 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4183 klass->blittable || klass->enumtype)
4186 /* dst = argument */
4187 mono_mb_emit_ldarg (mb, argnum);
4188 mono_mb_emit_byte (mb, CEE_STLOC_1);
4190 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4191 mono_mb_emit_byte (mb, CEE_BRFALSE);
4193 mono_mb_emit_i4 (mb, 0);
4195 /* src = tmp_locals [i] */
4196 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4197 mono_mb_emit_byte (mb, CEE_STLOC_0);
4199 /* emit valuetype conversion code */
4200 emit_struct_conv (mb, klass, TRUE);
4202 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4204 case MONO_TYPE_SZARRAY:
4208 klass = mono_class_from_mono_type (t);
4210 if (klass->element_class == mono_defaults.string_class) {
4211 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4212 g_assert (tmp_locals [i]);
4214 mono_mb_emit_ldarg (mb, argnum);
4215 mono_mb_emit_byte (mb, CEE_BRFALSE);
4217 mono_mb_emit_i4 (mb, 0);
4219 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4222 case MONO_NATIVE_LPWSTR:
4224 * The array elements point to the managed string data so
4225 * they don't need to be freed.
4227 mono_mb_emit_icall (mb, g_free);
4230 mono_mb_emit_ldarg (mb, argnum);
4231 mono_mb_emit_byte (mb, CEE_LDLEN);
4232 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_ARRAY));
4236 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4239 /* Character arrays are implicitly marshalled as [Out] */
4240 if ((klass->element_class == mono_defaults.char_class) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4241 /* FIXME: Optimize blittable case */
4243 guint32 label1, label2, label3;
4244 int index_var, src_ptr, esize;
4246 eklass = klass->element_class;
4247 if (eklass == mono_defaults.stringbuilder_class)
4248 esize = sizeof (gpointer);
4250 esize = mono_class_native_size (eklass, NULL);
4251 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4254 mono_mb_emit_ldarg (mb, argnum);
4255 mono_mb_emit_byte (mb, CEE_BRFALSE);
4257 mono_mb_emit_i4 (mb, 0);
4259 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4260 mono_mb_emit_stloc (mb, src_ptr);
4262 /* Emit marshalling loop */
4263 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4264 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4265 mono_mb_emit_stloc (mb, index_var);
4267 mono_mb_emit_ldloc (mb, index_var);
4268 mono_mb_emit_ldarg (mb, argnum);
4269 mono_mb_emit_byte (mb, CEE_LDLEN);
4270 mono_mb_emit_byte (mb, CEE_BGE);
4272 mono_mb_emit_i4 (mb, 0);
4274 /* Emit marshalling code */
4276 if (eklass == mono_defaults.stringbuilder_class) {
4278 MonoMarshalNative encoding = mono_marshal_get_ptr_to_stringbuilder_encoding (piinfo, spec, &need_free);
4280 g_assert (encoding != -1);
4283 mono_mb_emit_ldarg (mb, argnum);
4284 mono_mb_emit_ldloc (mb, index_var);
4285 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4288 mono_mb_emit_ldloc (mb, src_ptr);
4289 mono_mb_emit_byte (mb, CEE_LDIND_I);
4291 mono_mb_emit_icall (mb, conv_to_icall (encoding));
4295 mono_mb_emit_ldloc (mb, src_ptr);
4296 mono_mb_emit_byte (mb, CEE_LDIND_I);
4298 mono_mb_emit_icall (mb, g_free);
4302 /* set the src_ptr */
4303 mono_mb_emit_ldloc (mb, src_ptr);
4304 mono_mb_emit_byte (mb, CEE_STLOC_0);
4307 mono_mb_emit_ldarg (mb, argnum);
4308 mono_mb_emit_ldloc (mb, index_var);
4309 mono_mb_emit_byte (mb, CEE_LDELEMA);
4310 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4311 mono_mb_emit_byte (mb, CEE_STLOC_1);
4313 /* emit valuetype conversion code */
4314 emit_struct_conv (mb, eklass, TRUE);
4317 mono_mb_emit_add_to_local (mb, index_var, 1);
4318 mono_mb_emit_add_to_local (mb, src_ptr, esize);
4320 mono_mb_emit_byte (mb, CEE_BR);
4321 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4323 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4324 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4327 case MONO_TYPE_BOOLEAN:
4330 mono_mb_emit_ldarg (mb, argnum);
4331 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4332 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4333 mono_mb_emit_byte (mb, CEE_NEG);
4334 mono_mb_emit_byte (mb, CEE_STIND_I1);
4338 if (!MONO_TYPE_IS_VOID(sig->ret))
4339 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4341 mono_mb_emit_byte (mb, CEE_RET);
4343 csig = mono_metadata_signature_dup (sig);
4345 res = mono_mb_create_and_cache (cache, method,
4346 mb, csig, csig->param_count + 16);
4349 for (i = sig->param_count; i >= 0; i--)
4350 g_free (mspecs [i]);
4353 /* 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)); */
4359 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4361 static MonoReflectionType *
4362 type_from_handle (MonoType *handle)
4364 MonoDomain *domain = mono_domain_get ();
4365 MonoClass *klass = mono_class_from_mono_type (handle);
4367 MONO_ARCH_SAVE_REGS;
4369 mono_class_init (klass);
4370 return mono_type_get_object (domain, handle);
4374 * mono_marshal_get_isinst:
4375 * @klass: the type of the field
4377 * This method generates a function which can be used to check if an object is
4378 * an instance of the given type, icluding the case where the object is a proxy.
4379 * The generated function has the following signature:
4380 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4383 mono_marshal_get_isinst (MonoClass *klass)
4385 static MonoMethodSignature *isint_sig = NULL;
4386 static GHashTable *isinst_hash = NULL;
4388 int pos_was_ok, pos_failed, pos_end, pos_end2;
4390 MonoMethodBuilder *mb;
4392 EnterCriticalSection (&marshal_mutex);
4394 isinst_hash = g_hash_table_new (NULL, NULL);
4396 res = g_hash_table_lookup (isinst_hash, klass);
4397 LeaveCriticalSection (&marshal_mutex);
4402 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4403 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4404 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4405 isint_sig->pinvoke = 0;
4408 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4409 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
4412 mb->method->save_lmf = 1;
4414 /* check if the object is a proxy that needs special cast */
4415 mono_mb_emit_ldarg (mb, 0);
4416 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4417 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4418 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4420 /* The result of MONO_ISINST can be:
4421 0) the type check succeeded
4422 1) the type check did not succeed
4423 2) a CanCastTo call is needed */
4425 mono_mb_emit_byte (mb, CEE_DUP);
4426 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4428 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4429 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4431 /* get the real proxy from the transparent proxy*/
4433 mono_mb_emit_ldarg (mb, 0);
4434 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4435 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4439 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4440 mono_mb_emit_byte (mb, CEE_LDNULL);
4441 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4445 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4446 mono_mb_emit_byte (mb, CEE_POP);
4447 mono_mb_emit_ldarg (mb, 0);
4451 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4452 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4453 mono_mb_emit_byte (mb, CEE_RET);
4455 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4462 * mono_marshal_get_castclass:
4463 * @klass: the type of the field
4465 * This method generates a function which can be used to cast an object to
4466 * an instance of the given type, icluding the case where the object is a proxy.
4467 * The generated function has the following signature:
4468 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4471 mono_marshal_get_castclass (MonoClass *klass)
4473 static MonoMethodSignature *castclass_sig = NULL;
4474 static GHashTable *castclass_hash = NULL;
4476 int pos_was_ok, pos_was_ok2;
4478 MonoMethodBuilder *mb;
4480 EnterCriticalSection (&marshal_mutex);
4481 if (!castclass_hash)
4482 castclass_hash = g_hash_table_new (NULL, NULL);
4484 res = g_hash_table_lookup (castclass_hash, klass);
4485 LeaveCriticalSection (&marshal_mutex);
4489 if (!castclass_sig) {
4490 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4491 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4492 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4493 castclass_sig->pinvoke = 0;
4496 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4497 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
4500 mb->method->save_lmf = 1;
4502 /* check if the object is a proxy that needs special cast */
4503 mono_mb_emit_ldarg (mb, 0);
4504 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4505 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4506 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4508 /* The result of MONO_ISINST can be:
4509 0) the cast is valid
4510 1) cast of unknown proxy type
4511 or an exception if the cast is is invalid
4514 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4516 /* get the real proxy from the transparent proxy*/
4518 mono_mb_emit_ldarg (mb, 0);
4519 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4520 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4523 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4526 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4527 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4528 mono_mb_emit_ldarg (mb, 0);
4531 mono_mb_emit_byte (mb, CEE_RET);
4533 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4540 mono_marshal_get_proxy_cancast (MonoClass *klass)
4542 static MonoMethodSignature *from_handle_sig = NULL;
4543 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4544 static MonoMethodSignature *isint_sig = NULL;
4545 static GHashTable *proxy_isinst_hash = NULL;
4547 int pos_failed, pos_end;
4549 MonoMethod *can_cast_to;
4550 MonoMethodDesc *desc;
4551 MonoMethodBuilder *mb;
4553 EnterCriticalSection (&marshal_mutex);
4554 if (!proxy_isinst_hash)
4555 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4557 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4558 LeaveCriticalSection (&marshal_mutex);
4563 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4564 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4565 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4566 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4567 upgrade_proxy_sig->pinvoke = 1;
4569 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4570 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4571 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4573 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4574 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4575 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4576 isint_sig->pinvoke = 0;
4579 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4580 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
4583 mb->method->save_lmf = 1;
4585 /* get the real proxy from the transparent proxy*/
4586 mono_mb_emit_ldarg (mb, 0);
4587 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4588 mono_mb_emit_byte (mb, CEE_LDIND_I);
4590 /* get the refletion type from the type handle */
4591 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4592 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4593 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4594 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4596 mono_mb_emit_ldarg (mb, 0);
4598 /* make the call to CanCastTo (type, ob) */
4599 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4600 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4601 g_assert (can_cast_to);
4602 mono_method_desc_free (desc);
4603 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4604 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4607 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4609 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4610 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4611 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4612 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4613 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4614 mono_mb_emit_ldarg (mb, 0);
4616 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4617 emit_thread_interrupt_checkpoint (mb);
4619 mono_mb_emit_ldarg (mb, 0);
4620 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4624 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4625 mono_mb_emit_byte (mb, CEE_LDNULL);
4629 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4630 mono_mb_emit_byte (mb, CEE_RET);
4632 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4639 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4642 klass = mono_class_from_mono_type (rtype->type);
4643 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4644 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4648 * mono_marshal_get_struct_to_ptr:
4651 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4654 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4656 MonoMethodBuilder *mb;
4657 static MonoMethod *stoptr = NULL;
4660 g_assert (klass != NULL);
4662 if (klass->str_to_ptr)
4663 return klass->str_to_ptr;
4666 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4669 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4671 if (klass->blittable) {
4672 mono_mb_emit_byte (mb, CEE_LDARG_1);
4673 mono_mb_emit_byte (mb, CEE_LDARG_0);
4674 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4675 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4676 mono_mb_emit_byte (mb, CEE_PREFIX1);
4677 mono_mb_emit_byte (mb, CEE_CPBLK);
4680 /* allocate local 0 (pointer) src_ptr */
4681 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4682 /* allocate local 1 (pointer) dst_ptr */
4683 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4684 /* allocate local 2 (boolean) delete_old */
4685 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4686 mono_mb_emit_byte (mb, CEE_LDARG_2);
4687 mono_mb_emit_byte (mb, CEE_STLOC_2);
4689 /* initialize src_ptr to point to the start of object data */
4690 mono_mb_emit_byte (mb, CEE_LDARG_0);
4691 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4692 mono_mb_emit_byte (mb, CEE_STLOC_0);
4694 /* initialize dst_ptr */
4695 mono_mb_emit_byte (mb, CEE_LDARG_1);
4696 mono_mb_emit_byte (mb, CEE_STLOC_1);
4698 emit_struct_conv (mb, klass, FALSE);
4701 mono_mb_emit_byte (mb, CEE_RET);
4703 res = mono_mb_create_method (mb, stoptr->signature, 0);
4706 klass->str_to_ptr = res;
4711 * mono_marshal_get_ptr_to_struct:
4714 * generates IL code for PtrToStructure (IntPtr src, object structure)
4717 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4719 MonoMethodBuilder *mb;
4720 static MonoMethod *ptostr = NULL;
4723 g_assert (klass != NULL);
4725 if (klass->ptr_to_str)
4726 return klass->ptr_to_str;
4729 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4732 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4734 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4735 mono_mb_emit_byte (mb, CEE_LDARG_1);
4736 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4737 mono_mb_emit_byte (mb, CEE_LDARG_0);
4738 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4739 mono_mb_emit_byte (mb, CEE_PREFIX1);
4740 mono_mb_emit_byte (mb, CEE_CPBLK);
4743 /* allocate local 0 (pointer) src_ptr */
4744 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4745 /* allocate local 1 (pointer) dst_ptr */
4746 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4748 /* initialize src_ptr to point to the start of object data */
4749 mono_mb_emit_byte (mb, CEE_LDARG_0);
4750 mono_mb_emit_byte (mb, CEE_STLOC_0);
4752 /* initialize dst_ptr */
4753 mono_mb_emit_byte (mb, CEE_LDARG_1);
4754 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4755 mono_mb_emit_byte (mb, CEE_STLOC_1);
4757 emit_struct_conv (mb, klass, TRUE);
4760 mono_mb_emit_byte (mb, CEE_RET);
4762 res = mono_mb_create_method (mb, ptostr->signature, 0);
4765 klass->ptr_to_str = res;
4770 * generates IL code for the synchronized wrapper: the generated method
4771 * calls METHOD while locking 'this' or the parent type.
4774 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
4776 static MonoMethodSignature *from_handle_sig = NULL;
4777 static MonoMethod *enter_method, *exit_method;
4778 MonoMethodSignature *sig;
4779 MonoExceptionClause *clause;
4780 MonoMethodHeader *header;
4781 MonoMethodBuilder *mb;
4784 int i, pos, this_local, ret_local;
4788 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
4791 cache = method->klass->image->synchronized_cache;
4792 if ((res = mono_marshal_find_in_cache (cache, method)))
4795 sig = method->signature;
4797 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
4800 if (!MONO_TYPE_IS_VOID (sig->ret))
4801 ret_local = mono_mb_add_local (mb, sig->ret);
4804 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4806 clause = g_new0 (MonoExceptionClause, 1);
4807 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
4809 if (!enter_method) {
4810 MonoMethodDesc *desc;
4812 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
4813 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4814 g_assert (enter_method);
4815 mono_method_desc_free (desc);
4816 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
4817 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
4818 g_assert (exit_method);
4819 mono_method_desc_free (desc);
4822 * GetTypeFromHandle isn't called as a managed method because it has
4823 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
4824 * transformed into something else by the JIT.
4826 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4827 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4828 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4831 /* Push this or the type object */
4832 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
4833 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4834 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4835 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
4836 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4839 mono_mb_emit_ldarg (mb, 0);
4840 mono_mb_emit_stloc (mb, this_local);
4842 /* Call Monitor::Enter() */
4843 mono_mb_emit_ldloc (mb, this_local);
4844 mono_mb_emit_managed_call (mb, enter_method, NULL);
4846 clause->try_offset = mb->pos;
4848 /* Call the method */
4850 mono_mb_emit_ldarg (mb, 0);
4851 for (i = 0; i < sig->param_count; i++)
4852 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
4853 mono_mb_emit_managed_call (mb, method, method->signature);
4854 if (!MONO_TYPE_IS_VOID (sig->ret))
4855 mono_mb_emit_stloc (mb, ret_local);
4857 mono_mb_emit_byte (mb, CEE_LEAVE);
4859 mono_mb_emit_i4 (mb, 0);
4861 clause->try_len = mb->pos - clause->try_offset;
4862 clause->handler_offset = mb->pos;
4864 /* Call Monitor::Exit() */
4865 mono_mb_emit_ldloc (mb, this_local);
4866 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
4867 mono_mb_emit_managed_call (mb, exit_method, NULL);
4868 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
4870 clause->handler_len = mb->pos - clause->handler_offset;
4872 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4873 if (!MONO_TYPE_IS_VOID (sig->ret))
4874 mono_mb_emit_ldloc (mb, ret_local);
4875 mono_mb_emit_byte (mb, CEE_RET);
4877 res = mono_mb_create_and_cache (cache, method,
4878 mb, sig, sig->param_count + 16);
4881 header = ((MonoMethodNormal *)res)->header;
4882 header->num_clauses = 1;
4883 header->clauses = clause;
4888 /* FIXME: on win32 we should probably use GlobalAlloc(). */
4890 mono_marshal_alloc (gpointer size)
4892 MONO_ARCH_SAVE_REGS;
4894 return g_try_malloc ((gulong)size);
4898 mono_marshal_free (gpointer ptr)
4900 MONO_ARCH_SAVE_REGS;
4906 mono_marshal_free_array (gpointer *ptr, int size)
4913 for (i = 0; i < size; i++)
4919 mono_marshal_realloc (gpointer ptr, gpointer size)
4921 MONO_ARCH_SAVE_REGS;
4923 return g_try_realloc (ptr, (gulong)size);
4927 mono_marshal_string_array (MonoArray *array)
4935 len = mono_array_length (array);
4937 result = g_malloc (sizeof (char *) * (len + 1));
4938 for (i = 0; i < len; ++i) {
4939 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4940 result [i] = s ? mono_string_to_utf8 (s): NULL;
4942 /* null terminate the array */
4949 mono_marshal_string_array_to_unicode (MonoArray *array)
4957 len = mono_array_length (array);
4959 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
4960 for (i = 0; i < len; ++i) {
4961 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
4962 result [i] = s ? mono_string_chars (s) : NULL;
4964 /* null terminate the array */
4971 * mono_marshal_set_last_error:
4973 * This function is invoked to set the last error value from a P/Invoke call
4974 * which has SetLastError set.
4977 mono_marshal_set_last_error (void)
4980 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
4982 TlsSetValue (last_error_tls_id, (gpointer)errno);
4987 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
4988 gpointer dest, gint32 length)
4993 MONO_ARCH_SAVE_REGS;
4995 MONO_CHECK_ARG_NULL (src);
4996 MONO_CHECK_ARG_NULL (dest);
4998 g_assert (src->obj.vtable->klass->rank == 1);
4999 g_assert (start_index >= 0);
5000 g_assert (length >= 0);
5001 g_assert (start_index + length <= mono_array_length (src));
5003 element_size = mono_array_element_size (src->obj.vtable->klass);
5005 source_addr = mono_array_addr_with_size (src, element_size, start_index);
5007 memcpy (dest, source_addr, length * element_size);
5011 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
5012 MonoArray *dest, gint32 length)
5017 MONO_ARCH_SAVE_REGS;
5019 MONO_CHECK_ARG_NULL (src);
5020 MONO_CHECK_ARG_NULL (dest);
5022 g_assert (dest->obj.vtable->klass->rank == 1);
5023 g_assert (start_index >= 0);
5024 g_assert (length >= 0);
5025 g_assert (start_index + length <= mono_array_length (dest));
5027 element_size = mono_array_element_size (dest->obj.vtable->klass);
5029 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
5031 memcpy (dest_addr, src, length * element_size);
5034 #if NO_UNALIGNED_ACCESS
5035 #define RETURN_UNALIGNED(type, addr) \
5038 memcpy(&val, p + offset, sizeof(val)); \
5041 #define WRITE_UNALIGNED(type, addr, val) \
5042 memcpy(addr, &val, sizeof(type))
5044 #define RETURN_UNALIGNED(type, addr) \
5045 return *(type*)(p + offset);
5046 #define WRITE_UNALIGNED(type, addr, val) \
5047 (*(type *)(addr) = (val))
5051 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
5055 MONO_ARCH_SAVE_REGS;
5057 RETURN_UNALIGNED(gpointer, p + offset);
5061 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
5065 MONO_ARCH_SAVE_REGS;
5067 return *(unsigned char*)(p + offset);
5071 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
5075 MONO_ARCH_SAVE_REGS;
5077 RETURN_UNALIGNED(gint16, p + offset);
5081 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
5085 MONO_ARCH_SAVE_REGS;
5087 RETURN_UNALIGNED(gint32, p + offset);
5091 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
5095 MONO_ARCH_SAVE_REGS;
5097 RETURN_UNALIGNED(gint64, p + offset);
5101 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
5105 MONO_ARCH_SAVE_REGS;
5107 *(unsigned char*)(p + offset) = val;
5111 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
5115 MONO_ARCH_SAVE_REGS;
5117 WRITE_UNALIGNED(gpointer, p + offset, val);
5121 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5125 MONO_ARCH_SAVE_REGS;
5127 WRITE_UNALIGNED(gint16, p + offset, val);
5131 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5135 MONO_ARCH_SAVE_REGS;
5137 WRITE_UNALIGNED(gint32, p + offset, val);
5141 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5145 MONO_ARCH_SAVE_REGS;
5147 WRITE_UNALIGNED(gint64, p + offset, val);
5151 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5153 MONO_ARCH_SAVE_REGS;
5156 return mono_string_new (mono_domain_get (), "");
5158 return mono_string_new (mono_domain_get (), ptr);
5162 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5164 MONO_ARCH_SAVE_REGS;
5167 return mono_string_new (mono_domain_get (), "");
5169 return mono_string_new_len (mono_domain_get (), ptr, len);
5173 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5175 MonoDomain *domain = mono_domain_get ();
5179 MONO_ARCH_SAVE_REGS;
5182 return mono_string_new (mono_domain_get (), "");
5187 return mono_string_new_utf16 (domain, ptr, len);
5191 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5193 MonoDomain *domain = mono_domain_get ();
5195 MONO_ARCH_SAVE_REGS;
5198 return mono_string_new (mono_domain_get (), "");
5200 return mono_string_new_utf16 (domain, ptr, len);
5204 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5206 MONO_ARCH_SAVE_REGS;
5208 g_warning ("PtrToStringBSTR not implemented");
5209 g_assert_not_reached ();
5215 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5217 MONO_ARCH_SAVE_REGS;
5219 return ((guint32)TlsGetValue (last_error_tls_id));
5223 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5229 MONO_ARCH_SAVE_REGS;
5231 MONO_CHECK_ARG_NULL (rtype);
5234 klass = mono_class_from_mono_type (type);
5235 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5237 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5241 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5242 exc = mono_get_exception_argument ("t", msg);
5244 mono_raise_exception (exc);
5248 return mono_class_native_size (klass, NULL);
5252 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5257 MONO_ARCH_SAVE_REGS;
5259 MONO_CHECK_ARG_NULL (obj);
5260 MONO_CHECK_ARG_NULL (dst);
5262 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5266 pa [2] = &delete_old;
5268 mono_runtime_invoke (method, NULL, pa, NULL);
5272 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5277 MONO_ARCH_SAVE_REGS;
5279 MONO_CHECK_ARG_NULL (src);
5280 MONO_CHECK_ARG_NULL (dst);
5282 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5287 mono_runtime_invoke (method, NULL, pa, NULL);
5291 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5293 MonoDomain *domain = mono_domain_get ();
5296 MONO_ARCH_SAVE_REGS;
5298 MONO_CHECK_ARG_NULL (src);
5299 MONO_CHECK_ARG_NULL (type);
5301 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5303 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5309 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5311 MonoMarshalType *info;
5314 int i, match_index = -1;
5316 MONO_ARCH_SAVE_REGS;
5318 MONO_CHECK_ARG_NULL (type);
5319 MONO_CHECK_ARG_NULL (field_name);
5321 fname = mono_string_to_utf8 (field_name);
5322 klass = mono_class_from_mono_type (type->type);
5324 while(klass && match_index == -1) {
5325 for (i = 0; i < klass->field.count; ++i) {
5326 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5332 if(match_index == -1)
5333 klass = klass->parent;
5338 if(match_index == -1) {
5342 /* Get back original class instance */
5343 klass = mono_class_from_mono_type (type->type);
5345 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5346 exc = mono_get_exception_argument ("fieldName", tmp);
5349 mono_raise_exception ((MonoException*)exc);
5352 info = mono_marshal_load_type_info (klass);
5353 return info->fields [match_index].offset;
5357 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5359 MONO_ARCH_SAVE_REGS;
5361 return mono_string_to_utf8 (string);
5365 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5367 MONO_ARCH_SAVE_REGS;
5372 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5376 mono_struct_delete_old (MonoClass *klass, char *ptr)
5378 MonoMarshalType *info;
5381 info = mono_marshal_load_type_info (klass);
5383 for (i = 0; i < info->num_fields; i++) {
5384 MonoMarshalNative ntype;
5385 MonoMarshalConv conv;
5386 MonoType *ftype = info->fields [i].field->type;
5389 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5392 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5393 klass->unicode, &conv);
5395 cpos = ptr + info->fields [i].offset;
5398 case MONO_MARSHAL_CONV_NONE:
5399 if (MONO_TYPE_ISSTRUCT (ftype)) {
5400 mono_struct_delete_old (ftype->data.klass, cpos);
5404 case MONO_MARSHAL_CONV_STR_LPWSTR:
5405 case MONO_MARSHAL_CONV_STR_LPSTR:
5406 case MONO_MARSHAL_CONV_STR_LPTSTR:
5407 case MONO_MARSHAL_CONV_STR_BSTR:
5408 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5409 case MONO_MARSHAL_CONV_STR_TBSTR:
5410 g_free (*(gpointer *)cpos);
5419 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5423 MONO_ARCH_SAVE_REGS;
5425 MONO_CHECK_ARG_NULL (src);
5426 MONO_CHECK_ARG_NULL (type);
5428 klass = mono_class_from_mono_type (type->type);
5430 mono_struct_delete_old (klass, (char *)src);
5434 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5436 /* FIXME: Call AllocCoTaskMem under windows */
5437 MONO_ARCH_SAVE_REGS;
5439 return g_try_malloc ((gulong)size);
5443 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5445 /* FIXME: Call FreeCoTaskMem under windows */
5446 MONO_ARCH_SAVE_REGS;
5452 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5454 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5458 mono_marshal_load_type_info (MonoClass* klass)
5460 int i, j, count = 0, native_size = 0, min_align = 1;
5461 MonoMarshalType *info;
5464 g_assert (klass != NULL);
5466 if (klass->marshal_info)
5467 return klass->marshal_info;
5470 mono_class_init (klass);
5472 for (i = 0; i < klass->field.count; ++i) {
5473 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5475 if (mono_field_is_deleted (&klass->fields [i]))
5480 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5482 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5483 info->num_fields = count;
5485 /* Try to find a size for this type in metadata */
5486 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5488 if (klass->parent) {
5489 int parent_size = mono_class_native_size (klass->parent, NULL);
5491 /* Add parent size to real size */
5492 native_size += parent_size;
5493 info->native_size = parent_size;
5496 for (j = i = 0; i < klass->field.count; ++i) {
5499 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5502 if (mono_field_is_deleted (&klass->fields [i]))
5504 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5505 mono_metadata_field_info (klass->image, klass->field.first + i,
5506 NULL, NULL, &info->fields [j].mspec);
5508 info->fields [j].field = &klass->fields [i];
5510 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5511 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5512 /* This field is a hack inserted by MCS to empty structures */
5517 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5518 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
5519 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5520 &align, TRUE, klass->unicode);
5521 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5522 min_align = MAX (align, min_align);
5523 info->fields [j].offset = info->native_size;
5524 info->fields [j].offset += align - 1;
5525 info->fields [j].offset &= ~(align - 1);
5526 info->native_size = info->fields [j].offset + size;
5528 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5529 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5530 &align, TRUE, klass->unicode);
5531 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5532 min_align = MAX (align, min_align);
5533 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5534 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
5540 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5541 info->native_size = MAX (native_size, info->native_size);
5544 if (info->native_size & (min_align - 1)) {
5545 info->native_size += min_align - 1;
5546 info->native_size &= ~(min_align - 1);
5549 /* Update the class's blittable info, if the layouts don't match */
5550 if (info->native_size != mono_class_value_size (klass, NULL))
5551 klass->blittable = FALSE;
5553 /* If this is an array type, ensure that we have element info */
5554 if (klass->element_class) {
5555 mono_marshal_load_type_info (klass->element_class);
5558 return klass->marshal_info;
5562 * mono_class_native_size:
5565 * Returns: the native size of an object instance (when marshaled
5566 * to unmanaged code)
5569 mono_class_native_size (MonoClass *klass, guint32 *align)
5572 if (!klass->marshal_info)
5573 mono_marshal_load_type_info (klass);
5576 *align = klass->min_align;
5578 return klass->marshal_info->native_size;
5582 * mono_type_native_stack_size:
5583 * @t: the type to return the size it uses on the stack
5585 * Returns: the number of bytes required to hold an instance of this
5586 * type on the native stack
5589 mono_type_native_stack_size (MonoType *t, gint *align)
5593 g_assert (t != NULL);
5604 case MONO_TYPE_BOOLEAN:
5605 case MONO_TYPE_CHAR:
5614 case MONO_TYPE_STRING:
5615 case MONO_TYPE_OBJECT:
5616 case MONO_TYPE_CLASS:
5617 case MONO_TYPE_SZARRAY:
5619 case MONO_TYPE_FNPTR:
5620 case MONO_TYPE_ARRAY:
5621 case MONO_TYPE_TYPEDBYREF:
5632 case MONO_TYPE_VALUETYPE: {
5635 if (t->data.klass->enumtype)
5636 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
5638 size = mono_class_native_size (t->data.klass, align);
5639 *align = *align + 3;
5649 g_error ("type 0x%02x unknown", t->type);
5654 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
5655 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
5656 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
5657 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
5660 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
5661 gboolean as_field, gboolean unicode)
5663 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
5666 switch (native_type) {
5667 case MONO_NATIVE_BOOLEAN:
5670 case MONO_NATIVE_I1:
5671 case MONO_NATIVE_U1:
5674 case MONO_NATIVE_I2:
5675 case MONO_NATIVE_U2:
5676 case MONO_NATIVE_VARIANTBOOL:
5679 case MONO_NATIVE_I4:
5680 case MONO_NATIVE_U4:
5681 case MONO_NATIVE_ERROR:
5684 case MONO_NATIVE_I8:
5685 case MONO_NATIVE_U8:
5686 *align = ALIGNMENT(guint64);
5688 case MONO_NATIVE_R4:
5691 case MONO_NATIVE_R8:
5692 *align = ALIGNMENT(double);
5694 case MONO_NATIVE_INT:
5695 case MONO_NATIVE_UINT:
5696 case MONO_NATIVE_LPSTR:
5697 case MONO_NATIVE_LPWSTR:
5698 case MONO_NATIVE_LPTSTR:
5699 case MONO_NATIVE_BSTR:
5700 case MONO_NATIVE_ANSIBSTR:
5701 case MONO_NATIVE_TBSTR:
5702 case MONO_NATIVE_LPARRAY:
5703 case MONO_NATIVE_SAFEARRAY:
5704 case MONO_NATIVE_IUNKNOWN:
5705 case MONO_NATIVE_IDISPATCH:
5706 case MONO_NATIVE_INTERFACE:
5707 case MONO_NATIVE_ASANY:
5708 case MONO_NATIVE_FUNC:
5709 case MONO_NATIVE_LPSTRUCT:
5710 *align = ALIGNMENT(gpointer);
5711 return sizeof (gpointer);
5712 case MONO_NATIVE_STRUCT:
5713 klass = mono_class_from_mono_type (type);
5714 return mono_class_native_size (klass, align);
5715 case MONO_NATIVE_BYVALTSTR: {
5716 int esize = unicode ? 2: 1;
5719 return mspec->data.array_data.num_elem * esize;
5721 case MONO_NATIVE_BYVALARRAY: {
5723 klass = mono_class_from_mono_type (type);
5724 esize = mono_class_native_size (klass->element_class, align);
5726 return mspec->data.array_data.num_elem * esize;
5728 case MONO_NATIVE_CUSTOM:
5729 g_assert_not_reached ();
5731 case MONO_NATIVE_CURRENCY:
5732 case MONO_NATIVE_VBBYREFSTR:
5734 g_error ("native type %02x not implemented", native_type);
5737 g_assert_not_reached ();
5742 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
5750 t = &o->vtable->klass->byval_arg;
5757 case MONO_TYPE_BOOLEAN:
5760 case MONO_TYPE_CHAR:
5765 return mono_object_unbox (o);
5767 case MONO_TYPE_STRING:
5768 switch (string_encoding) {
5769 case MONO_NATIVE_LPWSTR:
5770 return mono_string_to_utf16 ((MonoString*)o);
5772 case MONO_NATIVE_LPSTR:
5773 return mono_string_to_utf8 ((MonoString*)o);
5776 g_warning ("marshaling conversion %d not implemented", string_encoding);
5777 g_assert_not_reached ();
5780 case MONO_TYPE_CLASS:
5781 case MONO_TYPE_VALUETYPE: {
5785 MonoBoolean delete_old = FALSE;
5787 klass = t->data.klass;
5789 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
5792 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5793 klass->blittable || klass->enumtype)
5794 return mono_object_unbox (o);
5796 res = g_malloc0 (mono_class_native_size (klass, NULL));
5798 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
5802 pa [2] = &delete_old;
5804 mono_runtime_invoke (method, NULL, pa, NULL);
5810 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
5816 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
5821 /* FIXME: Free embedded data as well */
5826 t = &o->vtable->klass->byval_arg;
5828 case MONO_TYPE_STRING:
5829 switch (string_encoding) {
5830 case MONO_NATIVE_LPWSTR:
5833 case MONO_NATIVE_LPSTR:
5837 g_warning ("marshaling conversion %d not implemented", string_encoding);
5838 g_assert_not_reached ();
5841 case MONO_TYPE_CLASS:
5842 case MONO_TYPE_VALUETYPE: {
5843 klass = t->data.klass;
5845 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5846 klass->blittable || klass->enumtype)