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/metadata/domain-internals.h"
24 #include "mono/metadata/gc-internal.h"
25 #include <mono/os/gc_wrapper.h>
29 /* #define DEBUG_RUNTIME_CODE */
31 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
35 #include "mono/cil/opcode.def"
40 struct _MonoMethodBuilder {
44 guint32 code_size, pos;
49 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
52 mono_find_method_by_name (MonoClass *klass, const char *name, int param_count)
54 MonoMethod *res = NULL;
57 mono_class_init (klass);
59 for (i = 0; i < klass->method.count; ++i) {
60 if (klass->methods [i]->name[0] == name [0] &&
61 !strcmp (name, klass->methods [i]->name) &&
62 klass->methods [i]->signature->param_count == param_count) {
63 res = klass->methods [i];
70 #ifdef DEBUG_RUNTIME_CODE
72 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
74 return g_strdup (" ");
77 static MonoDisHelper marshal_dh = {
87 /* This mutex protects the various marshalling related caches in MonoImage */
88 static CRITICAL_SECTION marshal_mutex;
90 /* Maps wrapper methods to the methods they wrap */
91 static MonoGHashTable *wrapper_hash;
93 static guint32 last_error_tls_id;
95 static void mono_struct_delete_old (MonoClass *klass, char *ptr);
96 void * mono_marshal_string_to_utf16 (MonoString *s);
99 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
101 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
103 mono_register_jit_icall (func, name, sig, save);
107 mono_marshal_init (void)
109 static gboolean module_initialized = FALSE;
111 if (!module_initialized) {
112 module_initialized = TRUE;
113 InitializeCriticalSection (&marshal_mutex);
114 MONO_GC_REGISTER_ROOT (wrapper_hash);
115 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
116 last_error_tls_id = TlsAlloc ();
118 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
119 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
120 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
121 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
122 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
123 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
124 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
125 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
126 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
127 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
128 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
129 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
130 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
131 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32", FALSE);
132 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32", FALSE);
133 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
134 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
135 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
136 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
137 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
138 register_icall (g_free, "g_free", "void ptr", FALSE);
139 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
140 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
145 mono_delegate_to_ftnptr (MonoDelegate *delegate)
147 MonoMethod *method, *wrapper, *invoke;
148 MonoMarshalSpec **mspecs;
155 if (delegate->delegate_trampoline)
156 return delegate->delegate_trampoline;
158 klass = ((MonoObject *)delegate)->vtable->klass;
159 g_assert (klass->delegate);
161 method = delegate->method_info->method;
162 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
164 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
165 mono_method_get_marshal_info (invoke, mspecs);
167 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
169 for (i = invoke->signature->param_count; i >= 0; i--)
171 mono_metadata_free_marshal_spec (mspecs [i]);
174 delegate->delegate_trampoline = mono_compile_method (wrapper);
176 return delegate->delegate_trampoline;
180 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
185 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
187 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
189 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
191 /* FIXME: discard the wrapper and call the original method */
192 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
198 mono_delegate_free_ftnptr (MonoDelegate *delegate)
203 ptr2 = delegate->delegate_trampoline;
205 ptr = InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
206 ji = mono_jit_info_table_find (mono_domain_get (), ptr);
209 if (!delegate->target) {
210 /* The wrapper method is shared between delegates -> no need to free it */
214 mono_runtime_free_method (ji->method);
218 mono_array_to_savearray (MonoArray *array)
223 g_assert_not_reached ();
228 mono_array_to_lparray (MonoArray *array)
233 /* fixme: maybe we need to make a copy */
234 return array->vector;
238 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
240 GError *error = NULL;
250 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
252 if (items_written > mono_stringbuilder_capacity (sb))
253 items_written = mono_stringbuilder_capacity (sb);
256 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
257 sb->length = items_written;
259 g_error_free (error);
265 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
272 g_assert (mono_string_chars (sb->str) == text);
274 for (len = 0; text [len] != 0; ++len)
281 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
283 GError *error = NULL;
290 res = g_malloc0 (mono_stringbuilder_capacity (sb) + 1);
292 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
294 g_error_free (error);
295 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
298 memcpy (res, tmp, sb->length + 1);
306 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
311 return mono_string_chars (sb->str);
315 mono_string_to_ansibstr (MonoString *string_obj)
317 g_error ("implement me");
322 mono_string_to_bstr (MonoString *string_obj)
324 g_error ("implement me");
329 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
334 g_assert (dst != NULL);
337 memset (dst, 0, size);
342 s = mono_string_to_utf8 (src);
343 len = MIN (size, strlen (s));
344 memcpy (dst, s, len);
347 *((char *)dst + size - 1) = 0;
351 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
355 g_assert (dst != NULL);
359 memset (dst, 0, size);
363 len = MIN (size, (mono_string_length (src) * 2));
364 memcpy (dst, mono_string_chars (src), len);
366 *((char *)dst + size - 1) = 0;
367 *((char *)dst + size - 2) = 0;
371 mono_mb_free (MonoMethodBuilder *mb)
373 g_list_free (mb->locals_list);
378 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
380 MonoMethodBuilder *mb;
383 g_assert (klass != NULL);
384 g_assert (name != NULL);
386 mb = g_new0 (MonoMethodBuilder, 1);
388 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
391 m->name = g_strdup (name);
393 m->inline_count = -1;
394 m->wrapper_type = type;
397 mb->code = g_malloc (mb->code_size);
403 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
405 int res = mb->locals;
407 g_assert (mb != NULL);
408 g_assert (type != NULL);
410 mb->locals_list = g_list_append (mb->locals_list, type);
417 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
419 MonoMethodHeader *header;
423 g_assert (mb != NULL);
425 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
426 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
431 header->max_stack = max_stack;
433 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
434 header->locals [i] = (MonoType *)l->data;
437 mb->method->signature = signature;
438 header->code = mb->code;
439 header->code_size = mb->pos;
440 header->num_locals = mb->locals;
442 #ifdef DEBUG_RUNTIME_CODE
443 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
444 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
451 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
453 MonoMethodWrapper *mw;
455 g_assert (mb != NULL);
457 mw = (MonoMethodWrapper *)mb->method;
459 mw->data = g_list_append (mw->data, data);
461 return g_list_length (mw->data);
465 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
467 mb->code [pos] = value & 0xff;
468 mb->code [pos + 1] = (value >> 8) & 0xff;
469 mb->code [pos + 2] = (value >> 16) & 0xff;
470 mb->code [pos + 3] = (value >> 24) & 0xff;
474 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
476 *((gint8 *)(&mb->code [pos])) = value;
480 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
482 if (mb->pos >= mb->code_size) {
484 mb->code = g_realloc (mb->code, mb->code_size);
487 mb->code [mb->pos++] = op;
491 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
493 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
494 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
497 mono_mb_emit_icon (mb, offset);
498 mono_mb_emit_byte (mb, CEE_ADD);
503 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
506 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
507 mono_mb_emit_byte (mb, CEE_LDIND_I);
508 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
509 mono_mb_emit_byte (mb, CEE_ADD);
510 mono_mb_emit_byte (mb, CEE_LDIND_I);
511 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
512 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
513 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
514 mono_mb_emit_byte (mb, branch_code);
516 mono_mb_emit_i4 (mb, 0);
521 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
523 if ((mb->pos + 4) >= mb->code_size) {
525 mb->code = g_realloc (mb->code, mb->code_size);
528 mono_mb_patch_addr (mb, mb->pos, data);
533 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
535 if ((mb->pos + 2) >= mb->code_size) {
537 mb->code = g_realloc (mb->code, mb->code_size);
540 mb->code [mb->pos] = data & 0xff;
541 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
546 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
548 mono_mb_emit_byte (mb, CEE_LDSTR);
549 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
554 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
557 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
558 } else if (argnum < 256) {
559 mono_mb_emit_byte (mb, CEE_LDARG_S);
560 mono_mb_emit_byte (mb, argnum);
562 mono_mb_emit_byte (mb, CEE_PREFIX1);
563 mono_mb_emit_byte (mb, CEE_LDARG);
564 mono_mb_emit_i2 (mb, argnum);
569 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
572 mono_mb_emit_byte (mb, CEE_LDARGA_S);
573 mono_mb_emit_byte (mb, argnum);
575 mono_mb_emit_byte (mb, CEE_PREFIX1);
576 mono_mb_emit_byte (mb, CEE_LDARGA);
577 mono_mb_emit_i2 (mb, argnum);
582 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
585 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
586 mono_mb_emit_byte (mb, locnum);
588 mono_mb_emit_byte (mb, CEE_PREFIX1);
589 mono_mb_emit_byte (mb, CEE_LDLOCA);
590 mono_mb_emit_i2 (mb, locnum);
595 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
598 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
599 } else if (num < 256) {
600 mono_mb_emit_byte (mb, CEE_LDLOC_S);
601 mono_mb_emit_byte (mb, num);
603 mono_mb_emit_byte (mb, CEE_PREFIX1);
604 mono_mb_emit_byte (mb, CEE_LDLOC);
605 mono_mb_emit_i2 (mb, num);
610 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
613 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
614 } else if (num < 256) {
615 mono_mb_emit_byte (mb, CEE_STLOC_S);
616 mono_mb_emit_byte (mb, num);
618 mono_mb_emit_byte (mb, CEE_PREFIX1);
619 mono_mb_emit_byte (mb, CEE_STLOC);
620 mono_mb_emit_i2 (mb, num);
625 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
627 if (value >= -1 && value < 8) {
628 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
629 } else if (value >= -128 && value <= 127) {
630 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
631 mono_mb_emit_byte (mb, value);
633 mono_mb_emit_byte (mb, CEE_LDC_I4);
634 mono_mb_emit_i4 (mb, value);
639 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
642 mono_mb_emit_byte (mb, op);
644 mono_mb_emit_i4 (mb, 0);
649 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
651 mono_mb_emit_byte (mb, CEE_CALLI);
652 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
656 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
658 mono_mb_emit_byte (mb, CEE_PREFIX1);
659 mono_mb_emit_byte (mb, CEE_LDFTN);
660 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
661 mono_mb_emit_calli (mb, opt_sig ? opt_sig : method->signature);
665 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
667 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
668 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
669 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
670 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
671 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
672 mono_mb_emit_calli (mb, sig);
673 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
674 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
678 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
680 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
681 mono_mb_emit_byte (mb, CEE_MONO_ICALL);
682 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
686 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
688 /* fixme: we need a better way to throw exception,
689 * supporting several exception types and messages */
690 MonoMethod *ctor = NULL;
692 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
694 mono_class_init (mme);
695 for (i = 0; i < mme->method.count; ++i) {
696 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
697 ctor = mme->methods [i];
702 mono_mb_emit_byte (mb, CEE_NEWOBJ);
703 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
705 mono_mb_emit_byte (mb, CEE_DUP);
706 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
707 mono_mb_emit_ldstr (mb, (char*)msg);
708 mono_mb_emit_byte (mb, CEE_STIND_I);
710 mono_mb_emit_byte (mb, CEE_THROW);
714 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
716 mono_mb_emit_ldloc (mb, local);
717 mono_mb_emit_icon (mb, incr);
718 mono_mb_emit_byte (mb, CEE_ADD);
719 mono_mb_emit_stloc (mb, local);
723 emit_ptr_to_str_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
724 int usize, int msize, MonoMarshalSpec *mspec)
727 case MONO_MARSHAL_CONV_BOOL_I4:
728 mono_mb_emit_byte (mb, CEE_LDLOC_1);
729 mono_mb_emit_byte (mb, CEE_LDLOC_0);
730 mono_mb_emit_byte (mb, CEE_LDIND_I4);
731 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
732 mono_mb_emit_byte (mb, 3);
733 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
734 mono_mb_emit_byte (mb, CEE_BR_S);
735 mono_mb_emit_byte (mb, 1);
736 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
737 mono_mb_emit_byte (mb, CEE_STIND_I1);
739 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
740 mono_mb_emit_byte (mb, CEE_LDLOC_1);
741 mono_mb_emit_byte (mb, CEE_LDLOC_0);
742 mono_mb_emit_byte (mb, CEE_LDIND_I2);
743 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
744 mono_mb_emit_byte (mb, 3);
745 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
746 mono_mb_emit_byte (mb, CEE_BR_S);
747 mono_mb_emit_byte (mb, 1);
748 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
749 mono_mb_emit_byte (mb, CEE_STIND_I1);
751 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
752 MonoClass *eclass = NULL;
755 if (type->type == MONO_TYPE_SZARRAY) {
756 eclass = type->data.klass;
758 g_assert_not_reached ();
761 if (eclass->valuetype)
762 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
764 esize = sizeof (gpointer);
766 /* create a new array */
767 mono_mb_emit_byte (mb, CEE_LDLOC_1);
768 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
769 mono_mb_emit_byte (mb, CEE_NEWARR);
770 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
771 mono_mb_emit_byte (mb, CEE_STIND_I);
773 /* copy the elements */
774 mono_mb_emit_byte (mb, CEE_LDLOC_1);
775 mono_mb_emit_byte (mb, CEE_LDIND_I);
776 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
777 mono_mb_emit_byte (mb, CEE_ADD);
778 mono_mb_emit_byte (mb, CEE_LDLOC_0);
779 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
780 mono_mb_emit_byte (mb, CEE_PREFIX1);
781 mono_mb_emit_byte (mb, CEE_CPBLK);
785 case MONO_MARSHAL_CONV_STR_BYVALSTR:
786 mono_mb_emit_byte (mb, CEE_LDLOC_1);
787 mono_mb_emit_byte (mb, CEE_LDLOC_0);
788 mono_mb_emit_icall (mb, mono_string_new_wrapper);
789 mono_mb_emit_byte (mb, CEE_STIND_I);
791 case MONO_MARSHAL_CONV_STR_LPTSTR:
792 case MONO_MARSHAL_CONV_STR_LPSTR:
793 mono_mb_emit_byte (mb, CEE_LDLOC_1);
794 mono_mb_emit_byte (mb, CEE_LDLOC_0);
795 mono_mb_emit_byte (mb, CEE_LDIND_I);
796 mono_mb_emit_icall (mb, mono_string_new_wrapper);
797 mono_mb_emit_byte (mb, CEE_STIND_I);
799 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
800 MonoClass *klass = mono_class_from_mono_type (type);
801 int src_var, dst_var;
803 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
804 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
806 /* *dst = new object */
807 mono_mb_emit_byte (mb, CEE_LDLOC_1);
808 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
809 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
810 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
811 mono_mb_emit_byte (mb, CEE_STIND_I);
813 /* save the old src pointer */
814 mono_mb_emit_byte (mb, CEE_LDLOC_0);
815 mono_mb_emit_stloc (mb, src_var);
816 /* save the old dst pointer */
817 mono_mb_emit_byte (mb, CEE_LDLOC_1);
818 mono_mb_emit_stloc (mb, dst_var);
820 /* dst = pointer to newly created object data */
821 mono_mb_emit_byte (mb, CEE_LDLOC_1);
822 mono_mb_emit_byte (mb, CEE_LDIND_I);
823 mono_mb_emit_icon (mb, sizeof (MonoObject));
824 mono_mb_emit_byte (mb, CEE_ADD);
825 mono_mb_emit_byte (mb, CEE_STLOC_1);
827 emit_struct_conv (mb, klass, TRUE);
829 /* restore the old src pointer */
830 mono_mb_emit_ldloc (mb, src_var);
831 mono_mb_emit_byte (mb, CEE_STLOC_0);
832 /* restore the old dst pointer */
833 mono_mb_emit_ldloc (mb, dst_var);
834 mono_mb_emit_byte (mb, CEE_STLOC_1);
837 case MONO_MARSHAL_CONV_DEL_FTN: {
838 /* fixme: we never convert functions back to delegates, dont
839 // know if thats the correct behaviour
843 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
844 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
846 case MONO_MARSHAL_CONV_STR_LPWSTR:
847 case MONO_MARSHAL_CONV_STR_BSTR:
848 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
849 case MONO_MARSHAL_CONV_STR_TBSTR:
850 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
851 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
853 g_warning ("marshaling conversion %d not implemented", conv);
854 g_assert_not_reached ();
859 conv_to_icall (MonoMarshalConv conv)
862 case MONO_MARSHAL_CONV_STR_LPWSTR:
863 return mono_marshal_string_to_utf16;
864 case MONO_MARSHAL_CONV_LPWSTR_STR:
865 return mono_string_from_utf16;
866 case MONO_MARSHAL_CONV_LPSTR_STR:
867 return mono_string_new_wrapper;
868 case MONO_MARSHAL_CONV_STR_LPTSTR:
869 case MONO_MARSHAL_CONV_STR_LPSTR:
870 return mono_string_to_utf8;
871 case MONO_MARSHAL_CONV_STR_BSTR:
872 return mono_string_to_bstr;
873 case MONO_MARSHAL_CONV_STR_TBSTR:
874 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
875 return mono_string_to_ansibstr;
876 case MONO_MARSHAL_CONV_SB_LPSTR:
877 case MONO_MARSHAL_CONV_SB_LPTSTR:
878 return mono_string_builder_to_utf8;
879 case MONO_MARSHAL_CONV_SB_LPWSTR:
880 return mono_string_builder_to_utf16;
881 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
882 return mono_array_to_savearray;
883 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
884 return mono_array_to_lparray;
885 case MONO_MARSHAL_CONV_DEL_FTN:
886 return mono_delegate_to_ftnptr;
887 case MONO_MARSHAL_CONV_FTN_DEL:
888 return mono_ftnptr_to_delegate;
889 case MONO_MARSHAL_CONV_LPSTR_SB:
890 case MONO_MARSHAL_CONV_LPTSTR_SB:
891 return mono_string_utf8_to_builder;
892 case MONO_MARSHAL_CONV_LPWSTR_SB:
893 return mono_string_utf16_to_builder;
894 case MONO_MARSHAL_FREE_ARRAY:
895 return mono_marshal_free_array;
896 case MONO_MARSHAL_CONV_STR_BYVALSTR:
897 return mono_string_to_byvalstr;
898 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
899 return mono_string_to_byvalwstr;
901 g_assert_not_reached ();
908 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
909 MonoMarshalSpec *mspec)
914 case MONO_MARSHAL_CONV_BOOL_I4:
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_U1);
918 mono_mb_emit_byte (mb, CEE_STIND_I4);
920 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
921 mono_mb_emit_byte (mb, CEE_LDLOC_1);
922 mono_mb_emit_byte (mb, CEE_LDLOC_0);
923 mono_mb_emit_byte (mb, CEE_LDIND_U1);
924 mono_mb_emit_byte (mb, CEE_NEG);
925 mono_mb_emit_byte (mb, CEE_STIND_I2);
927 case MONO_MARSHAL_CONV_STR_LPWSTR:
928 case MONO_MARSHAL_CONV_STR_LPSTR:
929 case MONO_MARSHAL_CONV_STR_LPTSTR:
930 case MONO_MARSHAL_CONV_STR_BSTR:
931 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
932 case MONO_MARSHAL_CONV_STR_TBSTR: {
935 /* free space if free == true */
936 mono_mb_emit_byte (mb, CEE_LDLOC_2);
937 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
939 mono_mb_emit_byte (mb, 0);
940 mono_mb_emit_byte (mb, CEE_LDLOC_1);
941 mono_mb_emit_byte (mb, CEE_LDIND_I);
942 mono_mb_emit_icall (mb, g_free);
943 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
945 mono_mb_emit_byte (mb, CEE_LDLOC_1);
946 mono_mb_emit_byte (mb, CEE_LDLOC_0);
947 mono_mb_emit_byte (mb, CEE_LDIND_I);
948 mono_mb_emit_icall (mb, conv_to_icall (conv));
949 mono_mb_emit_byte (mb, CEE_STIND_I);
952 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
953 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
954 case MONO_MARSHAL_CONV_DEL_FTN:
955 mono_mb_emit_byte (mb, CEE_LDLOC_1);
956 mono_mb_emit_byte (mb, CEE_LDLOC_0);
957 mono_mb_emit_byte (mb, CEE_LDIND_I);
958 mono_mb_emit_icall (mb, conv_to_icall (conv));
959 mono_mb_emit_byte (mb, CEE_STIND_I);
961 case MONO_MARSHAL_CONV_STR_BYVALSTR:
962 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
966 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
967 mono_mb_emit_byte (mb, CEE_LDLOC_0);
968 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
969 mono_mb_emit_icon (mb, usize);
970 mono_mb_emit_icall (mb, conv_to_icall (conv));
973 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
974 MonoClass *eclass = NULL;
977 if (type->type == MONO_TYPE_SZARRAY) {
978 eclass = type->data.klass;
980 g_assert_not_reached ();
983 if (eclass->valuetype)
984 esize = mono_class_native_size (eclass, NULL);
986 esize = sizeof (gpointer);
991 mono_mb_emit_byte (mb, CEE_LDLOC_0);
992 mono_mb_emit_byte (mb, CEE_LDIND_I);
993 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
995 mono_mb_emit_byte (mb, 0);
997 mono_mb_emit_byte (mb, CEE_LDLOC_1);
998 mono_mb_emit_byte (mb, CEE_LDLOC_0);
999 mono_mb_emit_byte (mb, CEE_LDIND_I);
1000 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1001 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1002 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1003 mono_mb_emit_byte (mb, CEE_ADD);
1004 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1005 mono_mb_emit_byte (mb, CEE_PREFIX1);
1006 mono_mb_emit_byte (mb, CEE_CPBLK);
1007 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1010 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1011 int src_var, dst_var;
1013 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1014 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1016 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1017 mono_mb_emit_byte (mb, CEE_LDIND_I);
1018 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1020 mono_mb_emit_byte (mb, 0);
1022 /* save the old src pointer */
1023 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1024 mono_mb_emit_stloc (mb, src_var);
1025 /* save the old dst pointer */
1026 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1027 mono_mb_emit_stloc (mb, dst_var);
1029 /* src = pointer to object data */
1030 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1031 mono_mb_emit_byte (mb, CEE_LDIND_I);
1032 mono_mb_emit_icon (mb, sizeof (MonoObject));
1033 mono_mb_emit_byte (mb, CEE_ADD);
1034 mono_mb_emit_byte (mb, CEE_STLOC_0);
1036 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1038 /* restore the old src pointer */
1039 mono_mb_emit_ldloc (mb, src_var);
1040 mono_mb_emit_byte (mb, CEE_STLOC_0);
1041 /* restore the old dst pointer */
1042 mono_mb_emit_ldloc (mb, dst_var);
1043 mono_mb_emit_byte (mb, CEE_STLOC_1);
1045 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1049 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1050 MonoException *exc = mono_get_exception_not_implemented (msg);
1053 mono_raise_exception (exc);
1059 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1061 MonoMarshalType *info;
1065 emit_struct_conv(mb, klass->parent, to_object);
1067 info = mono_marshal_load_type_info (klass);
1069 if (info->native_size == 0)
1072 if (klass->blittable) {
1073 int msize = mono_class_value_size (klass, NULL);
1074 g_assert (msize == info->native_size);
1075 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1076 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1077 mono_mb_emit_icon (mb, msize);
1078 mono_mb_emit_byte (mb, CEE_PREFIX1);
1079 mono_mb_emit_byte (mb, CEE_CPBLK);
1081 mono_mb_emit_add_to_local (mb, 0, msize);
1082 mono_mb_emit_add_to_local (mb, 1, msize);
1086 for (i = 0; i < info->num_fields; i++) {
1087 MonoMarshalNative ntype;
1088 MonoMarshalConv conv;
1089 MonoType *ftype = info->fields [i].field->type;
1092 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1094 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1097 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1100 msize = klass->instance_size - info->fields [i].field->offset;
1101 usize = info->native_size - info->fields [i].offset;
1103 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1104 usize = info->fields [i + 1].offset - info->fields [i].offset;
1106 if ((msize < 0) || (usize < 0))
1107 /* This happens with GC aware auto layout */
1108 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
1110 g_assert ((msize >= 0) && (usize >= 0));
1113 case MONO_MARSHAL_CONV_NONE: {
1116 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1117 ftype->type == MONO_TYPE_U) {
1118 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1119 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1120 mono_mb_emit_byte (mb, CEE_LDIND_I);
1121 mono_mb_emit_byte (mb, CEE_STIND_I);
1130 #if SIZEOF_VOID_P == 4
1133 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1134 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1135 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1136 mono_mb_emit_byte (mb, CEE_STIND_I4);
1140 case MONO_TYPE_BOOLEAN:
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_I1);
1144 mono_mb_emit_byte (mb, CEE_STIND_I1);
1148 case MONO_TYPE_CHAR:
1149 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1150 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1151 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1152 mono_mb_emit_byte (mb, CEE_STIND_I2);
1156 #if SIZEOF_VOID_P == 8
1159 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1160 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1161 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1162 mono_mb_emit_byte (mb, CEE_STIND_I8);
1165 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1166 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1167 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1168 mono_mb_emit_byte (mb, CEE_STIND_R4);
1171 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1172 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1174 mono_mb_emit_byte (mb, CEE_STIND_R8);
1176 case MONO_TYPE_VALUETYPE:
1177 if (ftype->data.klass->enumtype) {
1178 t = ftype->data.klass->enum_basetype->type;
1181 emit_struct_conv (mb, ftype->data.klass, to_object);
1184 g_warning ("marshaling type %02x not implemented", ftype->type);
1185 g_assert_not_reached ();
1191 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1193 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1197 mono_mb_emit_add_to_local (mb, 0, usize);
1198 mono_mb_emit_add_to_local (mb, 1, msize);
1200 mono_mb_emit_add_to_local (mb, 0, msize);
1201 mono_mb_emit_add_to_local (mb, 1, usize);
1207 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1209 /* Call DestroyStructure */
1210 /* FIXME: Only do this if needed */
1211 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1212 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1213 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
1214 mono_mb_emit_ldloc (mb, struct_var);
1215 mono_mb_emit_icall (mb, mono_struct_delete_old);
1219 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1221 static MonoMethodSignature *state_check_sig = NULL;
1224 if (!state_check_sig) {
1225 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1226 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1227 state_check_sig->pinvoke = 0;
1230 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1231 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1232 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1233 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1234 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1236 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1238 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1241 static MonoAsyncResult *
1242 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1244 MonoMethodMessage *msg;
1245 MonoDelegate *async_callback;
1249 MonoMethod *method = NULL;
1252 g_assert (delegate);
1254 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1256 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1257 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1259 /* If the target is a proxy, make a direct call. Is proxy's work
1260 // to make the call asynchronous.
1262 MonoAsyncResult *ares;
1264 MonoArray *out_args;
1266 method = delegate->method_info->method;
1268 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1269 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1270 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1271 ares->async_delegate = (MonoObject *)delegate;
1272 ares->async_callback = (MonoObject *)async_callback;
1273 msg->async_result = ares;
1274 msg->call_type = CallType_BeginInvoke;
1276 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1281 klass = delegate->object.vtable->klass;
1283 method = mono_get_delegate_invoke (klass);
1284 for (i = 0; i < klass->method.count; ++i) {
1285 if (klass->methods [i]->name[0] == 'B' &&
1286 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1287 method = klass->methods [i];
1292 g_assert (method != NULL);
1294 im = mono_get_delegate_invoke (method->klass);
1295 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1297 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1301 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1303 int i, params_var, tmp_var;
1305 /* allocate local (pointer) *params[] */
1306 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1307 /* allocate local (pointer) tmp */
1308 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1310 /* alloate space on stack to store an array of pointers to the arguments */
1311 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1312 mono_mb_emit_byte (mb, CEE_PREFIX1);
1313 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1314 mono_mb_emit_stloc (mb, params_var);
1317 mono_mb_emit_ldloc (mb, params_var);
1318 mono_mb_emit_stloc (mb, tmp_var);
1320 if (save_this && sig->hasthis) {
1321 mono_mb_emit_ldloc (mb, tmp_var);
1322 mono_mb_emit_ldarg_addr (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_STIND_I);
1324 /* tmp = tmp + sizeof (gpointer) */
1325 if (sig->param_count)
1326 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1330 for (i = 0; i < sig->param_count; i++) {
1331 mono_mb_emit_ldloc (mb, tmp_var);
1332 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1333 mono_mb_emit_byte (mb, CEE_STIND_I);
1334 /* tmp = tmp + sizeof (gpointer) */
1335 if (i < (sig->param_count - 1))
1336 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1343 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1347 GString *res = g_string_new ("");
1350 g_string_append (res, prefix);
1351 g_string_append_c (res, '_');
1354 mono_type_get_desc (res, sig->ret, FALSE);
1356 for (i = 0; i < sig->param_count; ++i) {
1357 g_string_append_c (res, '_');
1358 mono_type_get_desc (res, sig->params [i], FALSE);
1361 g_string_free (res, FALSE);
1366 * mono_marshal_get_string_encoding:
1368 * Return the string encoding which should be used for a given parameter.
1370 static MonoMarshalNative
1371 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1373 /* First try the parameter marshal info */
1375 if (spec->native == MONO_NATIVE_LPARRAY) {
1376 if (spec->data.array_data.elem_type != 0)
1377 return spec->data.array_data.elem_type;
1380 return spec->native;
1384 return MONO_NATIVE_LPSTR;
1386 /* Then try the method level marshal info */
1387 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1388 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1389 return MONO_NATIVE_LPSTR;
1390 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1391 return MONO_NATIVE_LPWSTR;
1392 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1393 return MONO_NATIVE_LPTSTR;
1395 return MONO_NATIVE_LPSTR;
1399 static MonoMarshalConv
1400 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1402 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1405 case MONO_NATIVE_LPWSTR:
1406 return MONO_MARSHAL_CONV_STR_LPWSTR;
1407 case MONO_NATIVE_LPSTR:
1408 return MONO_MARSHAL_CONV_STR_LPSTR;
1409 case MONO_NATIVE_LPTSTR:
1410 return MONO_MARSHAL_CONV_STR_LPTSTR;
1416 static MonoMarshalConv
1417 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1419 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1422 case MONO_NATIVE_LPWSTR:
1423 return MONO_MARSHAL_CONV_SB_LPWSTR;
1425 case MONO_NATIVE_LPSTR:
1426 return MONO_MARSHAL_CONV_SB_LPSTR;
1428 case MONO_NATIVE_LPTSTR:
1429 return MONO_MARSHAL_CONV_SB_LPTSTR;
1436 static MonoMarshalConv
1437 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
1439 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1444 case MONO_NATIVE_LPWSTR:
1446 * mono_string_builder_to_utf16 does not allocate a
1447 * new buffer, so no need to free it.
1450 return MONO_MARSHAL_CONV_LPWSTR_SB;
1451 case MONO_NATIVE_LPSTR:
1452 return MONO_MARSHAL_CONV_LPSTR_SB;
1454 case MONO_NATIVE_LPTSTR:
1455 return MONO_MARSHAL_CONV_LPTSTR_SB;
1463 * Return whenever a field of a native structure or an array member needs to
1467 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1469 MonoMarshalNative encoding;
1470 MonoMarshalConv conv;
1473 case MONO_TYPE_VALUETYPE:
1474 /* FIXME: Optimize this */
1476 case MONO_TYPE_OBJECT:
1477 case MONO_TYPE_CLASS:
1478 if (t->data.klass == mono_defaults.stringbuilder_class) {
1480 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
1484 case MONO_TYPE_STRING:
1485 encoding = mono_marshal_get_string_encoding (piinfo, spec);
1486 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
1492 static inline MonoMethod*
1493 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1497 EnterCriticalSection (&marshal_mutex);
1498 res = g_hash_table_lookup (cache, key);
1499 LeaveCriticalSection (&marshal_mutex);
1503 /* Create the method from the builder and place it in the cache */
1504 static inline MonoMethod*
1505 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1506 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1511 EnterCriticalSection (&marshal_mutex);
1512 res = g_hash_table_lookup (cache, key);
1514 /* This does not acquire any locks */
1515 res = mono_mb_create_method (mb, sig, max_stack);
1516 g_hash_table_insert (cache, key, res);
1517 mono_g_hash_table_insert (wrapper_hash, res, key);
1520 /* Somebody created it before us */
1522 LeaveCriticalSection (&marshal_mutex);
1528 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1532 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1535 EnterCriticalSection (&marshal_mutex);
1536 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1537 LeaveCriticalSection (&marshal_mutex);
1539 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1540 /* See mono_marshal_get_remoting_invoke_with_check */
1541 return (MonoMethod*)((char*)res - 1);
1547 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1549 MonoMethodSignature *sig;
1550 static MonoMethodSignature *csig = NULL;
1551 MonoMethodBuilder *mb;
1557 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1558 !strcmp (method->name, "BeginInvoke"));
1560 sig = method->signature;
1562 cache = method->klass->image->delegate_begin_invoke_cache;
1563 if ((res = mono_marshal_find_in_cache (cache, sig)))
1566 g_assert (sig->hasthis);
1569 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1571 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1572 csig->ret = &mono_defaults.object_class->byval_arg;
1573 csig->params [0] = &mono_defaults.object_class->byval_arg;
1574 csig->params [1] = &mono_defaults.int_class->byval_arg;
1577 name = mono_signature_to_name (sig, "begin_invoke");
1578 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1581 mb->method->save_lmf = 1;
1583 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1585 mono_mb_emit_ldarg (mb, 0);
1586 mono_mb_emit_ldloc (mb, params_var);
1587 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1588 emit_thread_interrupt_checkpoint (mb);
1589 mono_mb_emit_byte (mb, CEE_RET);
1591 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1597 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1599 MonoDomain *domain = mono_domain_get ();
1600 MonoAsyncResult *ares;
1601 MonoMethod *method = NULL;
1602 MonoMethodSignature *sig;
1603 MonoMethodMessage *msg;
1604 MonoObject *res, *exc;
1605 MonoArray *out_args;
1609 g_assert (delegate);
1611 if (!delegate->method_info || !delegate->method_info->method)
1612 g_assert_not_reached ();
1614 klass = delegate->object.vtable->klass;
1616 for (i = 0; i < klass->method.count; ++i) {
1617 if (klass->methods [i]->name[0] == 'E' &&
1618 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1619 method = klass->methods [i];
1624 g_assert (method != NULL);
1626 sig = method->signature;
1628 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1630 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1633 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1634 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1635 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1636 mono_message_init (domain, msg, delegate->method_info, NULL);
1637 msg->call_type = CallType_EndInvoke;
1638 msg->async_result = ares;
1639 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1642 res = mono_thread_pool_finish (ares, &out_args, &exc);
1645 if (((MonoException*)exc)->stack_trace) {
1646 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1648 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1650 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1653 mono_raise_exception ((MonoException*)exc);
1656 mono_method_return_message_restore (method, params, out_args);
1661 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1663 if (return_type->byref)
1664 return_type = &mono_defaults.int_class->byval_arg;
1665 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1666 return_type = return_type->data.klass->enum_basetype;
1668 switch (return_type->type) {
1669 case MONO_TYPE_VOID:
1670 g_assert_not_reached ();
1673 case MONO_TYPE_STRING:
1674 case MONO_TYPE_CLASS:
1675 case MONO_TYPE_OBJECT:
1676 case MONO_TYPE_ARRAY:
1677 case MONO_TYPE_SZARRAY:
1681 case MONO_TYPE_BOOLEAN:
1682 mono_mb_emit_byte (mb, CEE_UNBOX);
1683 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1684 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1687 mono_mb_emit_byte (mb, CEE_UNBOX);
1688 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1689 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1692 case MONO_TYPE_CHAR:
1693 mono_mb_emit_byte (mb, CEE_UNBOX);
1694 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1695 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1698 mono_mb_emit_byte (mb, CEE_UNBOX);
1699 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1700 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1704 mono_mb_emit_byte (mb, CEE_UNBOX);
1705 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1706 mono_mb_emit_byte (mb, CEE_LDIND_I);
1709 mono_mb_emit_byte (mb, CEE_UNBOX);
1710 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1711 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1714 mono_mb_emit_byte (mb, CEE_UNBOX);
1715 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1716 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1720 mono_mb_emit_byte (mb, CEE_UNBOX);
1721 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1722 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1725 mono_mb_emit_byte (mb, CEE_UNBOX);
1726 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1727 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1730 mono_mb_emit_byte (mb, CEE_UNBOX);
1731 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1732 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1734 case MONO_TYPE_VALUETYPE: {
1736 mono_mb_emit_byte (mb, CEE_UNBOX);
1737 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1738 mono_mb_emit_i4 (mb, class);
1739 mono_mb_emit_byte (mb, CEE_LDOBJ);
1740 mono_mb_emit_i4 (mb, class);
1744 g_warning ("type 0x%x not handled", return_type->type);
1745 g_assert_not_reached ();
1748 mono_mb_emit_byte (mb, CEE_RET);
1752 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1754 MonoMethodSignature *sig;
1755 static MonoMethodSignature *csig = NULL;
1756 MonoMethodBuilder *mb;
1762 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1763 !strcmp (method->name, "EndInvoke"));
1765 sig = method->signature;
1767 cache = method->klass->image->delegate_end_invoke_cache;
1768 if ((res = mono_marshal_find_in_cache (cache, sig)))
1771 g_assert (sig->hasthis);
1774 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1776 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1777 csig->ret = &mono_defaults.object_class->byval_arg;
1778 csig->params [0] = &mono_defaults.object_class->byval_arg;
1779 csig->params [1] = &mono_defaults.int_class->byval_arg;
1782 name = mono_signature_to_name (sig, "end_invoke");
1783 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1786 mb->method->save_lmf = 1;
1788 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1790 mono_mb_emit_ldarg (mb, 0);
1791 mono_mb_emit_ldloc (mb, params_var);
1792 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1793 emit_thread_interrupt_checkpoint (mb);
1795 if (sig->ret->type == MONO_TYPE_VOID) {
1796 mono_mb_emit_byte (mb, CEE_POP);
1797 mono_mb_emit_byte (mb, CEE_RET);
1799 mono_mb_emit_restore_result (mb, sig->ret);
1801 res = mono_mb_create_and_cache (cache, sig,
1802 mb, sig, sig->param_count + 16);
1809 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1811 MonoMethodMessage *msg;
1812 MonoTransparentProxy *this;
1813 MonoObject *res, *exc;
1814 MonoArray *out_args;
1816 this = *((MonoTransparentProxy **)params [0]);
1819 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1821 /* skip the this pointer */
1824 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1827 MonoMethodSignature *sig = method->signature;
1828 int count = sig->param_count;
1829 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1831 for (i=0; i<count; i++) {
1832 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1833 if (class->valuetype) {
1834 if (sig->params [i]->byref)
1835 mparams[i] = *((gpointer *)params [i]);
1837 mparams[i] = params [i];
1839 mparams[i] = *((gpointer**)params [i]);
1843 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
1846 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1848 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1851 mono_raise_exception ((MonoException *)exc);
1853 mono_method_return_message_restore (method, params, out_args);
1859 mono_marshal_get_remoting_invoke (MonoMethod *method)
1861 MonoMethodSignature *sig;
1862 static MonoMethodSignature *csig = NULL;
1863 MonoMethodBuilder *mb;
1870 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1873 sig = method->signature;
1875 /* we cant remote methods without this pointer */
1879 cache = method->klass->image->remoting_invoke_cache;
1880 if ((res = mono_marshal_find_in_cache (cache, method)))
1884 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1885 csig->params [0] = &mono_defaults.int_class->byval_arg;
1886 csig->params [1] = &mono_defaults.int_class->byval_arg;
1887 csig->ret = &mono_defaults.object_class->byval_arg;
1891 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1892 mb->method->save_lmf = 1;
1894 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1896 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1897 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1898 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1899 mono_mb_emit_ldloc (mb, params_var);
1900 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1901 emit_thread_interrupt_checkpoint (mb);
1903 if (sig->ret->type == MONO_TYPE_VOID) {
1904 mono_mb_emit_byte (mb, CEE_POP);
1905 mono_mb_emit_byte (mb, CEE_RET);
1907 mono_mb_emit_restore_result (mb, sig->ret);
1910 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1917 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1919 MonoMethodSignature *sig;
1920 MonoMethodBuilder *mb;
1921 MonoMethod *res, *native;
1927 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1930 sig = method->signature;
1932 /* we cant remote methods without this pointer */
1933 g_assert (sig->hasthis);
1935 cache = method->klass->image->remoting_invoke_cache;
1936 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1939 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1941 mono_mb_emit_ldarg (mb, 0);
1942 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1944 native = mono_marshal_get_remoting_invoke (method);
1946 for (i = 0; i <= sig->param_count; i++)
1947 mono_mb_emit_ldarg (mb, i);
1949 mono_mb_emit_managed_call (mb, native, native->signature);
1950 mono_mb_emit_byte (mb, CEE_RET);
1952 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1954 for (i = 0; i <= sig->param_count; i++)
1955 mono_mb_emit_ldarg (mb, i);
1957 mono_mb_emit_managed_call (mb, method, method->signature);
1958 mono_mb_emit_byte (mb, CEE_RET);
1960 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1961 mb, sig, sig->param_count + 16);
1968 * the returned method invokes all methods in a multicast delegate
1971 mono_marshal_get_delegate_invoke (MonoMethod *method)
1973 MonoMethodSignature *sig, *static_sig;
1975 MonoMethodBuilder *mb;
1981 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1982 !strcmp (method->name, "Invoke"));
1984 sig = method->signature;
1986 cache = method->klass->image->delegate_invoke_cache;
1987 if ((res = mono_marshal_find_in_cache (cache, sig)))
1990 static_sig = mono_metadata_signature_dup (sig);
1991 static_sig->hasthis = 0;
1993 name = mono_signature_to_name (sig, "invoke");
1994 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1997 /* allocate local 0 (object) */
1998 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2000 g_assert (sig->hasthis);
2004 * prev.Invoke( args .. );
2005 * return this.<target>( args .. );
2008 /* this wrapper can be used in unmanaged-managed transitions */
2009 emit_thread_interrupt_checkpoint (mb);
2011 /* get this->prev */
2012 mono_mb_emit_ldarg (mb, 0);
2013 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
2014 mono_mb_emit_byte (mb, CEE_LDIND_I );
2015 mono_mb_emit_stloc (mb, 0);
2017 /* if prev != null */
2018 mono_mb_emit_ldloc (mb, 0);
2019 mono_mb_emit_byte (mb, CEE_BRFALSE);
2022 mono_mb_emit_i4 (mb, 0);
2025 mono_mb_emit_ldloc (mb, 0);
2026 for (i = 0; i < sig->param_count; i++)
2027 mono_mb_emit_ldarg (mb, i + 1);
2028 mono_mb_emit_managed_call (mb, method, method->signature);
2029 if (sig->ret->type != MONO_TYPE_VOID)
2030 mono_mb_emit_byte (mb, CEE_POP);
2032 /* continued or prev == null */
2033 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2035 /* get this->target */
2036 mono_mb_emit_ldarg (mb, 0);
2037 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
2038 mono_mb_emit_byte (mb, CEE_LDIND_I );
2039 mono_mb_emit_stloc (mb, 0);
2041 /* if target != null */
2042 mono_mb_emit_ldloc (mb, 0);
2043 mono_mb_emit_byte (mb, CEE_BRFALSE);
2045 mono_mb_emit_i4 (mb, 0);
2047 /* then call this->method_ptr nonstatic */
2048 mono_mb_emit_ldloc (mb, 0);
2049 for (i = 0; i < sig->param_count; ++i)
2050 mono_mb_emit_ldarg (mb, i + 1);
2051 mono_mb_emit_ldarg (mb, 0);
2052 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
2053 mono_mb_emit_byte (mb, CEE_LDIND_I );
2054 mono_mb_emit_byte (mb, CEE_CALLI);
2055 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
2057 mono_mb_emit_byte (mb, CEE_BR);
2059 mono_mb_emit_i4 (mb, 0);
2061 /* else [target == null] call this->method_ptr static */
2062 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2064 for (i = 0; i < sig->param_count; ++i)
2065 mono_mb_emit_ldarg (mb, i + 1);
2066 mono_mb_emit_ldarg (mb, 0);
2067 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
2068 mono_mb_emit_byte (mb, CEE_LDIND_I );
2069 mono_mb_emit_byte (mb, CEE_CALLI);
2070 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
2073 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2074 mono_mb_emit_byte (mb, CEE_RET);
2076 res = mono_mb_create_and_cache (cache, sig,
2077 mb, sig, sig->param_count + 16);
2084 * signature_dup_add_this:
2086 * Make a copy of @sig, adding an explicit this argument.
2088 static MonoMethodSignature*
2089 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
2091 MonoMethodSignature *res;
2094 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
2095 memcpy (res, sig, sizeof (MonoMethodSignature));
2096 res->param_count = sig->param_count + 1;
2097 res->hasthis = FALSE;
2098 for (i = sig->param_count - 1; i >= 0; i --)
2099 res->params [i + 1] = sig->params [i];
2100 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
2107 MonoMethodSignature *sig;
2111 * generates IL code for the runtime invoke function
2112 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
2114 * we also catch exceptions if exc != null
2117 mono_marshal_get_runtime_invoke (MonoMethod *method)
2119 MonoMethodSignature *sig, *csig, *callsig;
2120 MonoExceptionClause *clause;
2121 MonoMethodHeader *header;
2122 MonoMethodBuilder *mb;
2123 GHashTable *cache = NULL;
2124 MonoClass *target_klass;
2125 MonoMethod *res = NULL;
2127 static MonoString *string_dummy = NULL;
2133 target_klass = method->klass;
2135 EnterCriticalSection (&marshal_mutex);
2137 if (method->string_ctor) {
2138 static GSList *strsig_list = NULL;
2142 for (item = strsig_list; item; item = item->next) {
2144 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
2150 callsig = mono_metadata_signature_dup (method->signature);
2151 callsig->ret = &mono_defaults.string_class->byval_arg;
2152 cs = g_new (CtorSigPair, 1);
2155 strsig_list = g_slist_prepend (strsig_list, cs);
2158 if (method->klass->valuetype && method->signature->hasthis) {
2160 * Valuetype methods receive a managed pointer as the this argument.
2161 * Create a new signature to reflect this.
2163 callsig = signature_dup_add_this (method->signature, method->klass);
2166 callsig = method->signature;
2169 cache = method->klass->image->runtime_invoke_cache;
2171 /* from mono_marshal_find_in_cache */
2172 res = g_hash_table_lookup (cache, callsig);
2173 LeaveCriticalSection (&marshal_mutex);
2179 target_klass = mono_defaults.object_class;
2181 /* to make it work with our special string constructors */
2182 if (!string_dummy) {
2183 MONO_GC_REGISTER_ROOT (string_dummy);
2184 string_dummy = mono_string_new_wrapper ("dummy");
2187 sig = method->signature;
2189 csig = mono_metadata_signature_alloc (method->klass->image, 4);
2191 csig->ret = &mono_defaults.object_class->byval_arg;
2192 if (method->klass->valuetype && method->signature->hasthis)
2193 csig->params [0] = callsig->params [0];
2195 csig->params [0] = &mono_defaults.object_class->byval_arg;
2196 csig->params [1] = &mono_defaults.int_class->byval_arg;
2197 csig->params [2] = &mono_defaults.int_class->byval_arg;
2198 csig->params [3] = &mono_defaults.int_class->byval_arg;
2200 name = mono_signature_to_name (callsig, "runtime_invoke");
2201 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
2204 /* allocate local 0 (object) tmp */
2205 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2206 /* allocate local 1 (object) exc */
2207 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2209 /* cond set *exc to null */
2210 mono_mb_emit_byte (mb, CEE_LDARG_2);
2211 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2212 mono_mb_emit_byte (mb, 3);
2213 mono_mb_emit_byte (mb, CEE_LDARG_2);
2214 mono_mb_emit_byte (mb, CEE_LDNULL);
2215 mono_mb_emit_byte (mb, CEE_STIND_I);
2218 if (method->string_ctor) {
2219 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2220 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2221 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
2223 mono_mb_emit_ldarg (mb, 0);
2227 for (i = 0; i < sig->param_count; i++) {
2228 MonoType *t = sig->params [i];
2231 mono_mb_emit_ldarg (mb, 1);
2233 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
2234 mono_mb_emit_byte (mb, CEE_ADD);
2236 mono_mb_emit_byte (mb, CEE_LDIND_I);
2241 type = sig->params [i]->type;
2245 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2247 case MONO_TYPE_BOOLEAN:
2249 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2252 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2255 case MONO_TYPE_CHAR:
2256 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2260 mono_mb_emit_byte (mb, CEE_LDIND_I);
2263 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2266 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2269 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2272 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2276 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2278 case MONO_TYPE_STRING:
2279 case MONO_TYPE_CLASS:
2280 case MONO_TYPE_ARRAY:
2282 case MONO_TYPE_SZARRAY:
2283 case MONO_TYPE_OBJECT:
2286 case MONO_TYPE_VALUETYPE:
2287 if (t->data.klass->enumtype) {
2288 type = t->data.klass->enum_basetype->type;
2291 mono_mb_emit_byte (mb, CEE_LDOBJ);
2292 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2295 g_assert_not_reached ();
2299 mono_mb_emit_ldarg (mb, 3);
2300 mono_mb_emit_calli (mb, callsig);
2302 if (sig->ret->byref) {
2304 g_assert_not_reached ();
2308 switch (sig->ret->type) {
2309 case MONO_TYPE_VOID:
2310 if (!method->string_ctor)
2311 mono_mb_emit_byte (mb, CEE_LDNULL);
2313 case MONO_TYPE_BOOLEAN:
2314 case MONO_TYPE_CHAR:
2327 case MONO_TYPE_VALUETYPE:
2328 /* box value types */
2329 mono_mb_emit_byte (mb, CEE_BOX);
2330 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2332 case MONO_TYPE_STRING:
2333 case MONO_TYPE_CLASS:
2334 case MONO_TYPE_ARRAY:
2335 case MONO_TYPE_SZARRAY:
2336 case MONO_TYPE_OBJECT:
2341 g_assert_not_reached ();
2344 mono_mb_emit_stloc (mb, 0);
2346 mono_mb_emit_byte (mb, CEE_LEAVE);
2348 mono_mb_emit_i4 (mb, 0);
2350 clause = g_new0 (MonoExceptionClause, 1);
2351 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2352 clause->try_len = mb->pos;
2355 clause->token_or_filter = mb->pos;
2357 mono_mb_emit_byte (mb, CEE_POP);
2358 mono_mb_emit_byte (mb, CEE_LDARG_2);
2359 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2360 mono_mb_emit_byte (mb, CEE_PREFIX1);
2361 mono_mb_emit_byte (mb, CEE_CGT_UN);
2362 mono_mb_emit_byte (mb, CEE_PREFIX1);
2363 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2365 clause->handler_offset = mb->pos;
2368 /* store exception */
2369 mono_mb_emit_stloc (mb, 1);
2371 mono_mb_emit_byte (mb, CEE_LDARG_2);
2372 mono_mb_emit_ldloc (mb, 1);
2373 mono_mb_emit_byte (mb, CEE_STIND_I);
2375 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2376 mono_mb_emit_stloc (mb, 0);
2378 mono_mb_emit_byte (mb, CEE_LEAVE);
2379 mono_mb_emit_i4 (mb, 0);
2381 clause->handler_len = mb->pos - clause->handler_offset;
2384 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2385 mono_mb_emit_ldloc (mb, 0);
2386 mono_mb_emit_byte (mb, CEE_RET);
2388 /* taken from mono_mb_create_and_cache */
2389 EnterCriticalSection (&marshal_mutex);
2391 res = g_hash_table_lookup (cache, callsig);
2392 /* Somebody may have created it before us */
2394 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2395 g_hash_table_insert (cache, callsig, res);
2396 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2399 LeaveCriticalSection (&marshal_mutex);
2400 /* end mono_mb_create_and_cache */
2404 header = ((MonoMethodNormal *)res)->header;
2405 header->num_clauses = 1;
2406 header->clauses = clause;
2412 raise_auto_layout_exception (MonoClass *klass)
2414 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
2415 klass->name_space, klass->name);
2417 MonoException *e = mono_exception_from_name_msg (
2418 mono_get_corlib (), "System.Runtime.InteropServices",
2419 "MarshalDirectiveException", msg);
2421 mono_raise_exception (e);
2425 * generates IL code to call managed methods from unmanaged code
2428 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2430 MonoMethodSignature *sig, *csig;
2431 MonoMethodBuilder *mb;
2432 MonoClass *klass = NULL;
2435 int i, pos = 0, *tmp_locals;
2436 static MonoMethodSignature *alloc_sig = NULL;
2439 g_assert (method != NULL);
2440 g_assert (!method->signature->pinvoke);
2442 cache = method->klass->image->managed_wrapper_cache;
2443 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2446 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2448 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2449 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2450 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2451 alloc_sig->pinvoke = 1;
2454 sig = method->signature;
2456 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2458 /* allocate local 0 (pointer) src_ptr */
2459 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2460 /* allocate local 1 (pointer) dst_ptr */
2461 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2462 /* allocate local 2 (boolean) delete_old */
2463 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2465 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2466 /* allocate local 3 to store the return value */
2467 mono_mb_add_local (mb, sig->ret);
2470 mono_mb_emit_icon (mb, 0);
2471 mono_mb_emit_byte (mb, CEE_STLOC_2);
2473 /* we copy the signature, so that we can modify it */
2474 csig = mono_metadata_signature_dup (sig);
2478 #ifdef PLATFORM_WIN32
2480 * Under windows, delegates passed to native code must use the STDCALL
2481 * calling convention.
2483 csig->call_convention = MONO_CALL_STDCALL;
2486 /* fixme: howto handle this ? */
2490 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2491 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2492 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2497 g_assert_not_reached ();
2502 /* we first do all conversions */
2503 tmp_locals = alloca (sizeof (int) * sig->param_count);
2504 for (i = 0; i < sig->param_count; i ++) {
2505 MonoType *t = sig->params [i];
2506 MonoMarshalSpec *spec = mspecs [i + 1];
2510 /* Ensure that we have marshalling info for this param */
2511 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2513 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2516 MonoMethod *marshal_native_to_managed;
2517 MonoMethod *get_instance;
2519 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2520 g_assert (mtype != NULL);
2521 mklass = mono_class_from_mono_type (mtype);
2522 g_assert (mklass != NULL);
2524 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2525 g_assert (marshal_native_to_managed);
2526 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2527 g_assert (get_instance);
2530 case MONO_TYPE_CLASS:
2531 case MONO_TYPE_OBJECT:
2532 case MONO_TYPE_STRING:
2533 case MONO_TYPE_ARRAY:
2534 case MONO_TYPE_SZARRAY:
2538 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2540 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
2542 mono_mb_emit_byte (mb, CEE_CALL);
2543 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2545 mono_mb_emit_ldarg (mb, i);
2547 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2548 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2550 mono_mb_emit_stloc (mb, tmp_locals [i]);
2553 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2554 g_assert_not_reached ();
2561 case MONO_TYPE_CLASS: {
2562 klass = t->data.klass;
2564 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2566 if (klass->delegate) {
2567 g_assert (!t->byref);
2568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2569 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2570 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2571 mono_mb_emit_ldarg (mb, i);
2572 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
2573 mono_mb_emit_stloc (mb, tmp_locals [i]);
2577 /* The class can not have an automatic layout */
2578 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2579 raise_auto_layout_exception (klass);
2581 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2582 mono_mb_emit_byte (mb, CEE_LDNULL);
2583 mono_mb_emit_stloc (mb, tmp_locals [i]);
2588 mono_mb_emit_ldarg (mb, i);
2592 /* Check for NULL and raise an exception */
2593 mono_mb_emit_byte (mb, CEE_BRTRUE);
2595 mono_mb_emit_i4 (mb, 0);
2597 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2599 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2600 mono_mb_emit_ldarg (mb, i);
2601 mono_mb_emit_byte (mb, CEE_LDIND_I);
2604 mono_mb_emit_byte (mb, CEE_STLOC_0);
2606 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2607 mono_mb_emit_stloc (mb, tmp_locals [i]);
2609 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2610 mono_mb_emit_byte (mb, CEE_BRFALSE);
2612 mono_mb_emit_i4 (mb, 0);
2614 /* Create and set dst */
2615 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2616 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2617 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2618 mono_mb_emit_stloc (mb, tmp_locals [i]);
2619 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2620 mono_mb_emit_icon (mb, sizeof (MonoObject));
2621 mono_mb_emit_byte (mb, CEE_ADD);
2622 mono_mb_emit_byte (mb, CEE_STLOC_1);
2624 /* emit valuetype conversion code */
2625 emit_struct_conv (mb, klass, TRUE);
2627 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2630 case MONO_TYPE_VALUETYPE:
2632 klass = sig->params [i]->data.klass;
2633 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2634 klass->blittable || klass->enumtype)
2637 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2639 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2643 mono_mb_emit_ldarg (mb, i);
2645 mono_mb_emit_ldarg_addr (mb, i);
2646 mono_mb_emit_byte (mb, CEE_STLOC_0);
2649 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2650 mono_mb_emit_byte (mb, CEE_BRFALSE);
2652 mono_mb_emit_i4 (mb, 0);
2655 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2656 mono_mb_emit_byte (mb, CEE_STLOC_1);
2658 /* emit valuetype conversion code */
2659 emit_struct_conv (mb, klass, TRUE);
2662 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2664 case MONO_TYPE_STRING: {
2665 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2670 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2671 csig->params [i] = &mono_defaults.int_class->byval_arg;
2673 mono_mb_emit_ldarg (mb, i);
2676 case MONO_NATIVE_LPWSTR:
2677 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
2679 case MONO_NATIVE_LPSTR:
2680 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
2683 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2684 MonoException *exc = mono_get_exception_not_implemented (msg);
2687 mono_raise_exception (exc);
2691 mono_mb_emit_stloc (mb, tmp_locals [i]);
2694 case MONO_TYPE_ARRAY:
2695 case MONO_TYPE_SZARRAY:
2699 klass = mono_class_from_mono_type (t);
2701 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2702 csig->params [i] = &mono_defaults.int_class->byval_arg;
2704 g_warning ("array marshaling not implemented");
2705 g_assert_not_reached ();
2710 for (i = 0; i < sig->param_count; i++) {
2711 MonoType *t = sig->params [i];
2714 case MONO_TYPE_BOOLEAN:
2728 mono_mb_emit_ldarg (mb, i);
2730 case MONO_TYPE_STRING:
2732 mono_mb_emit_ldarg (mb, i);
2734 g_assert (tmp_locals [i]);
2735 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2738 case MONO_TYPE_CLASS:
2740 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2742 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2744 case MONO_TYPE_ARRAY:
2745 case MONO_TYPE_SZARRAY:
2746 case MONO_TYPE_OBJECT:
2748 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2750 mono_mb_emit_ldarg (mb, i);
2752 case MONO_TYPE_VALUETYPE:
2753 klass = sig->params [i]->data.klass;
2754 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2755 klass->blittable || klass->enumtype) {
2756 mono_mb_emit_ldarg (mb, i);
2760 g_assert (tmp_locals [i]);
2762 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2764 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2767 g_warning ("type 0x%02x unknown", t->type);
2768 g_assert_not_reached ();
2772 emit_thread_interrupt_checkpoint (mb);
2773 mono_mb_emit_managed_call (mb, method, NULL);
2775 /* Ensure that we have marshalling info for the return */
2776 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2778 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
2779 MonoMarshalSpec *spec = mspecs [0];
2784 g_assert (!sig->ret->byref);
2786 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2788 mklass = mono_class_from_mono_type (mtype);
2791 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2793 switch (sig->ret->type) {
2794 case MONO_TYPE_CLASS:
2795 case MONO_TYPE_OBJECT:
2796 case MONO_TYPE_STRING:
2797 case MONO_TYPE_ARRAY:
2798 case MONO_TYPE_SZARRAY:
2799 mono_mb_emit_byte (mb, CEE_STLOC_3);
2801 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2802 mono_mb_emit_stloc (mb, loc1);
2804 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
2805 mono_mb_emit_byte (mb, CEE_CALL);
2806 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "GetInstance", 1)));
2807 mono_mb_emit_byte (mb, CEE_DUP);
2809 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2810 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2811 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "MarshalManagedToNative", 1)));
2812 mono_mb_emit_byte (mb, CEE_STLOC_3);
2814 mono_mb_emit_ldloc (mb, loc1);
2815 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2816 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "CleanUpManagedData", 1)));
2820 g_warning ("custom marshalling of type %x is currently not supported", sig->ret->type);
2821 g_assert_not_reached ();
2826 if (!sig->ret->byref) {
2827 switch (sig->ret->type) {
2828 case MONO_TYPE_VOID:
2830 case MONO_TYPE_BOOLEAN:
2844 case MONO_TYPE_OBJECT:
2845 mono_mb_emit_byte (mb, CEE_STLOC_3);
2847 case MONO_TYPE_STRING:
2848 csig->ret = &mono_defaults.int_class->byval_arg;
2850 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
2851 mono_mb_emit_byte (mb, CEE_STLOC_3);
2853 case MONO_TYPE_VALUETYPE:
2854 klass = sig->ret->data.klass;
2855 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2856 klass->blittable || klass->enumtype)
2859 /* load pointer to returned value type */
2860 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2861 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2863 /* store the address of the source into local variable 0 */
2864 mono_mb_emit_byte (mb, CEE_STLOC_0);
2865 /* allocate space for the native struct and
2866 * store the address into dst_ptr */
2867 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2868 g_assert (retobj_var);
2869 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2870 mono_mb_emit_byte (mb, CEE_CONV_I);
2871 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2872 emit_thread_interrupt_checkpoint (mb);
2873 mono_mb_emit_byte (mb, CEE_STLOC_1);
2874 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2875 mono_mb_emit_stloc (mb, retobj_var);
2877 /* emit valuetype conversion code */
2878 emit_struct_conv (mb, klass, FALSE);
2880 case MONO_TYPE_CLASS: {
2883 klass = sig->ret->data.klass;
2885 if (klass->delegate) {
2886 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
2887 mono_mb_emit_byte (mb, CEE_STLOC_3);
2891 /* The class can not have an automatic layout */
2892 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2893 raise_auto_layout_exception (klass);
2895 mono_mb_emit_byte (mb, CEE_STLOC_0);
2896 /* Check for null */
2897 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2898 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2899 mono_mb_emit_byte (mb, CEE_LDNULL);
2900 mono_mb_emit_byte (mb, CEE_STLOC_3);
2901 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2903 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2906 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2907 mono_mb_emit_icon (mb, sizeof (MonoObject));
2908 mono_mb_emit_byte (mb, CEE_ADD);
2909 mono_mb_emit_byte (mb, CEE_STLOC_0);
2911 /* Allocate and set dest */
2912 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2913 mono_mb_emit_byte (mb, CEE_CONV_I);
2914 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2915 emit_thread_interrupt_checkpoint (mb);
2916 mono_mb_emit_byte (mb, CEE_DUP);
2917 mono_mb_emit_byte (mb, CEE_STLOC_1);
2918 mono_mb_emit_byte (mb, CEE_STLOC_3);
2920 emit_struct_conv (mb, klass, FALSE);
2922 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2926 g_warning ("return type 0x%02x unknown", sig->ret->type);
2927 g_assert_not_reached ();
2930 mono_mb_emit_byte (mb, CEE_STLOC_3);
2933 /* Convert byref arguments back */
2934 for (i = 0; i < sig->param_count; i ++) {
2935 MonoType *t = sig->params [i];
2936 MonoMarshalSpec *spec = mspecs [i + 1];
2938 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2941 MonoMethod *cleanup_managed;
2942 MonoMethod *get_instance;
2944 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2945 g_assert (mtype != NULL);
2946 mklass = mono_class_from_mono_type (mtype);
2947 g_assert (mklass != NULL);
2949 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2950 g_assert (get_instance);
2951 cleanup_managed = mono_find_method_by_name (mklass, "CleanUpManagedData", 1);
2952 g_assert (cleanup_managed);
2955 case MONO_TYPE_CLASS:
2956 case MONO_TYPE_OBJECT:
2957 case MONO_TYPE_STRING:
2958 case MONO_TYPE_ARRAY:
2959 case MONO_TYPE_SZARRAY:
2961 g_assert_not_reached ();
2963 /* Call CleanUpManagedData */
2965 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
2967 mono_mb_emit_byte (mb, CEE_CALL);
2968 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2970 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2971 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2972 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_managed));
2976 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2977 g_assert_not_reached ();
2987 case MONO_TYPE_CLASS: {
2990 klass = t->data.klass;
2992 /* Check for null */
2993 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2994 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2995 mono_mb_emit_ldarg (mb, i);
2996 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2997 mono_mb_emit_byte (mb, CEE_STIND_I);
2998 pos2 = mono_mb_emit_branch (mb, CEE_BR);
3000 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3003 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3004 mono_mb_emit_icon (mb, sizeof (MonoObject));
3005 mono_mb_emit_byte (mb, CEE_ADD);
3006 mono_mb_emit_byte (mb, CEE_STLOC_0);
3008 /* Allocate and set dest */
3009 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3010 mono_mb_emit_byte (mb, CEE_CONV_I);
3011 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
3012 emit_thread_interrupt_checkpoint (mb);
3013 mono_mb_emit_byte (mb, CEE_STLOC_1);
3015 /* Update argument pointer */
3016 mono_mb_emit_ldarg (mb, i);
3017 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3018 mono_mb_emit_byte (mb, CEE_STIND_I);
3020 /* emit valuetype conversion code */
3021 emit_struct_conv (mb, klass, FALSE);
3023 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
3026 case MONO_TYPE_VALUETYPE: {
3029 klass = t->data.klass;
3031 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3032 klass->blittable || klass->enumtype) {
3036 /* Check for null */
3037 mono_mb_emit_ldarg (mb, i);
3038 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3041 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3042 mono_mb_emit_byte (mb, CEE_STLOC_0);
3045 mono_mb_emit_ldarg (mb, i);
3046 mono_mb_emit_byte (mb, CEE_STLOC_1);
3048 /* emit valuetype conversion code */
3049 emit_struct_conv (mb, klass, FALSE);
3051 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
3058 mono_mb_emit_ldloc (mb, retobj_var);
3059 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3060 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
3061 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3064 if (!MONO_TYPE_IS_VOID(sig->ret))
3065 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3066 mono_mb_emit_byte (mb, CEE_RET);
3070 res = mono_mb_create_and_cache (cache, method,
3071 mb, csig, sig->param_count + 16);
3073 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
3078 /* 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)); */
3084 * mono_marshal_get_ldfld_wrapper:
3085 * @type: the type of the field
3087 * This method generates a function which can be use to load a field with type
3088 * @type from an object. The generated function has the following signature:
3089 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
3092 mono_marshal_get_ldfld_wrapper (MonoType *type)
3094 MonoMethodSignature *sig, *csig;
3095 MonoMethodBuilder *mb;
3098 static GHashTable *ldfld_hash = NULL;
3100 int t, pos0, pos1 = 0;
3105 if (type->type == MONO_TYPE_SZARRAY) {
3106 klass = mono_defaults.array_class;
3107 } else if (type->type == MONO_TYPE_VALUETYPE) {
3108 klass = type->data.klass;
3109 if (klass->enumtype) {
3110 t = klass->enum_basetype->type;
3111 klass = mono_class_from_mono_type (klass->enum_basetype);
3113 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3114 t == MONO_TYPE_CLASS) {
3115 klass = mono_defaults.object_class;
3116 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3117 klass = mono_defaults.int_class;
3119 klass = mono_class_from_mono_type (type);
3122 klass = mono_defaults.int_class;
3125 EnterCriticalSection (&marshal_mutex);
3127 ldfld_hash = g_hash_table_new (NULL, NULL);
3128 res = g_hash_table_lookup (ldfld_hash, klass);
3129 LeaveCriticalSection (&marshal_mutex);
3133 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
3134 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
3137 mb->method->save_lmf = 1;
3139 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3140 sig->params [0] = &mono_defaults.object_class->byval_arg;
3141 sig->params [1] = &mono_defaults.int_class->byval_arg;
3142 sig->params [2] = &mono_defaults.int_class->byval_arg;
3143 sig->params [3] = &mono_defaults.int_class->byval_arg;
3144 sig->ret = &klass->byval_arg;
3146 mono_mb_emit_ldarg (mb, 0);
3147 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3149 mono_mb_emit_ldarg (mb, 0);
3150 mono_mb_emit_ldarg (mb, 1);
3151 mono_mb_emit_ldarg (mb, 2);
3153 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
3154 csig->params [0] = &mono_defaults.object_class->byval_arg;
3155 csig->params [1] = &mono_defaults.int_class->byval_arg;
3156 csig->params [2] = &mono_defaults.int_class->byval_arg;
3157 csig->ret = &klass->this_arg;
3160 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
3161 emit_thread_interrupt_checkpoint (mb);
3163 if (klass->valuetype) {
3164 mono_mb_emit_byte (mb, CEE_UNBOX);
3165 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3166 mono_mb_emit_byte (mb, CEE_BR);
3168 mono_mb_emit_i4 (mb, 0);
3170 mono_mb_emit_byte (mb, CEE_RET);
3174 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
3176 mono_mb_emit_ldarg (mb, 0);
3177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3178 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3179 mono_mb_emit_ldarg (mb, 3);
3180 mono_mb_emit_byte (mb, CEE_ADD);
3182 if (klass->valuetype)
3183 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
3188 case MONO_TYPE_BOOLEAN:
3189 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3191 case MONO_TYPE_CHAR:
3194 mono_mb_emit_byte (mb, CEE_LDIND_I2);
3198 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3202 mono_mb_emit_byte (mb, CEE_LDIND_I8);
3205 mono_mb_emit_byte (mb, CEE_LDIND_R4);
3208 mono_mb_emit_byte (mb, CEE_LDIND_R8);
3210 case MONO_TYPE_ARRAY:
3212 case MONO_TYPE_FNPTR:
3213 case MONO_TYPE_SZARRAY:
3214 case MONO_TYPE_OBJECT:
3215 case MONO_TYPE_CLASS:
3216 case MONO_TYPE_STRING:
3219 mono_mb_emit_byte (mb, CEE_LDIND_I);
3221 case MONO_TYPE_VALUETYPE:
3222 g_assert (!klass->enumtype);
3223 mono_mb_emit_byte (mb, CEE_LDOBJ);
3224 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3227 g_warning ("type %x not implemented", type->type);
3228 g_assert_not_reached ();
3231 mono_mb_emit_byte (mb, CEE_RET);
3233 res = mono_mb_create_and_cache (ldfld_hash, klass,
3234 mb, sig, sig->param_count + 16);
3241 * mono_marshal_get_stfld_wrapper:
3242 * @type: the type of the field
3244 * This method generates a function which can be use to store a field with type
3245 * @type. The generated function has the following signature:
3246 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
3249 mono_marshal_get_stfld_wrapper (MonoType *type)
3251 MonoMethodSignature *sig, *csig;
3252 MonoMethodBuilder *mb;
3255 static GHashTable *stfld_hash = NULL;
3262 if (type->type == MONO_TYPE_SZARRAY) {
3263 klass = mono_defaults.array_class;
3264 } else if (type->type == MONO_TYPE_VALUETYPE) {
3265 klass = type->data.klass;
3266 if (klass->enumtype) {
3267 t = klass->enum_basetype->type;
3268 klass = mono_class_from_mono_type (klass->enum_basetype);
3270 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3271 t == MONO_TYPE_CLASS) {
3272 klass = mono_defaults.object_class;
3273 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3274 klass = mono_defaults.int_class;
3276 klass = mono_class_from_mono_type (type);
3279 klass = mono_defaults.int_class;
3282 EnterCriticalSection (&marshal_mutex);
3284 stfld_hash = g_hash_table_new (NULL, NULL);
3285 res = g_hash_table_lookup (stfld_hash, klass);
3286 LeaveCriticalSection (&marshal_mutex);
3290 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
3291 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
3294 mb->method->save_lmf = 1;
3296 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
3297 sig->params [0] = &mono_defaults.object_class->byval_arg;
3298 sig->params [1] = &mono_defaults.int_class->byval_arg;
3299 sig->params [2] = &mono_defaults.int_class->byval_arg;
3300 sig->params [3] = &mono_defaults.int_class->byval_arg;
3301 sig->params [4] = &klass->byval_arg;
3302 sig->ret = &mono_defaults.void_class->byval_arg;
3304 mono_mb_emit_ldarg (mb, 0);
3305 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3307 mono_mb_emit_ldarg (mb, 0);
3308 mono_mb_emit_ldarg (mb, 1);
3309 mono_mb_emit_ldarg (mb, 2);
3310 mono_mb_emit_ldarg (mb, 4);
3312 if (klass->valuetype) {
3313 mono_mb_emit_byte (mb, CEE_BOX);
3314 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3317 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3318 csig->params [0] = &mono_defaults.object_class->byval_arg;
3319 csig->params [1] = &mono_defaults.int_class->byval_arg;
3320 csig->params [2] = &mono_defaults.int_class->byval_arg;
3321 csig->params [3] = &klass->this_arg;
3322 csig->ret = &mono_defaults.void_class->byval_arg;
3325 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
3326 emit_thread_interrupt_checkpoint (mb);
3328 mono_mb_emit_byte (mb, CEE_RET);
3330 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3332 mono_mb_emit_ldarg (mb, 0);
3333 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3334 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3335 mono_mb_emit_ldarg (mb, 3);
3336 mono_mb_emit_byte (mb, CEE_ADD);
3337 mono_mb_emit_ldarg (mb, 4);
3342 case MONO_TYPE_BOOLEAN:
3343 mono_mb_emit_byte (mb, CEE_STIND_I1);
3345 case MONO_TYPE_CHAR:
3348 mono_mb_emit_byte (mb, CEE_STIND_I2);
3352 mono_mb_emit_byte (mb, CEE_STIND_I4);
3356 mono_mb_emit_byte (mb, CEE_STIND_I8);
3359 mono_mb_emit_byte (mb, CEE_STIND_R4);
3362 mono_mb_emit_byte (mb, CEE_STIND_R8);
3364 case MONO_TYPE_ARRAY:
3366 case MONO_TYPE_FNPTR:
3367 case MONO_TYPE_SZARRAY:
3368 case MONO_TYPE_OBJECT:
3369 case MONO_TYPE_CLASS:
3370 case MONO_TYPE_STRING:
3373 mono_mb_emit_byte (mb, CEE_STIND_I);
3375 case MONO_TYPE_VALUETYPE:
3376 g_assert (!klass->enumtype);
3377 mono_mb_emit_byte (mb, CEE_STOBJ);
3378 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3381 g_warning ("type %x not implemented", type->type);
3382 g_assert_not_reached ();
3385 mono_mb_emit_byte (mb, CEE_RET);
3387 res = mono_mb_create_and_cache (stfld_hash, klass,
3388 mb, sig, sig->param_count + 16);
3395 * generates IL code for the icall wrapper (the generated method
3396 * calls the unmanaged code in func)
3399 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3401 MonoMethodSignature *csig;
3402 MonoMethodBuilder *mb;
3406 g_assert (sig->pinvoke);
3408 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3410 mb->method->save_lmf = 1;
3412 /* we copy the signature, so that we can modify it */
3415 mono_mb_emit_byte (mb, CEE_LDARG_0);
3417 for (i = 0; i < sig->param_count; i++)
3418 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3420 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3421 emit_thread_interrupt_checkpoint (mb);
3422 mono_mb_emit_byte (mb, CEE_RET);
3424 csig = mono_metadata_signature_dup (sig);
3426 if (csig->call_convention == MONO_CALL_VARARG)
3427 csig->call_convention = 0;
3429 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3436 MonoMethodBuilder *mb;
3437 MonoMethodPInvoke *piinfo;
3438 int *orig_conv_args; /* Locals containing the original values of byref args */
3439 } EmitMarshalContext;
3442 MARSHAL_ACTION_CONV_IN,
3443 MARSHAL_ACTION_PUSH,
3444 MARSHAL_ACTION_CONV_OUT,
3445 MARSHAL_ACTION_CONV_RESULT
3449 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
3450 MonoMarshalSpec *spec,
3451 int conv_arg, MonoType **conv_arg_type,
3452 MarshalAction action)
3456 MonoMethod *get_instance, *cleanup_native;
3457 MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
3458 MonoMethodBuilder *mb = m->mb;
3461 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, mb->method->klass->image);
3462 g_assert (mtype != NULL);
3463 mklass = mono_class_from_mono_type (mtype);
3464 g_assert (mklass != NULL);
3466 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3467 g_assert (get_instance);
3468 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3469 g_assert (cleanup_native);
3470 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3471 g_assert (marshal_managed_to_native);
3472 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3473 g_assert (marshal_native_to_managed);
3476 case MARSHAL_ACTION_CONV_IN:
3478 case MONO_TYPE_CLASS:
3479 case MONO_TYPE_OBJECT:
3480 case MONO_TYPE_STRING:
3481 case MONO_TYPE_ARRAY:
3482 case MONO_TYPE_SZARRAY:
3483 case MONO_TYPE_VALUETYPE:
3487 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3489 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3491 mono_mb_emit_byte (mb, CEE_CALL);
3492 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3494 mono_mb_emit_ldarg (mb, argnum);
3496 if (t->type == MONO_TYPE_VALUETYPE) {
3498 * Since we can't determine the type of the argument, we
3499 * will assume the unmanaged function takes a pointer.
3501 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3503 mono_mb_emit_byte (mb, CEE_BOX);
3504 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3507 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3508 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3509 mono_mb_emit_stloc (mb, conv_arg);
3513 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3514 g_assert_not_reached ();
3520 case MARSHAL_ACTION_CONV_OUT:
3522 case MONO_TYPE_CLASS:
3523 case MONO_TYPE_OBJECT:
3524 case MONO_TYPE_STRING:
3525 case MONO_TYPE_ARRAY:
3526 case MONO_TYPE_SZARRAY:
3527 case MONO_TYPE_VALUETYPE:
3528 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3530 mono_mb_emit_byte (mb, CEE_CALL);
3531 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3533 mono_mb_emit_ldloc (mb, conv_arg);
3535 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3536 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3541 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3542 g_assert_not_reached ();
3547 case MARSHAL_ACTION_PUSH:
3548 mono_mb_emit_ldloc (mb, conv_arg);
3551 case MARSHAL_ACTION_CONV_RESULT:
3552 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3555 case MONO_TYPE_CLASS:
3556 case MONO_TYPE_OBJECT:
3557 case MONO_TYPE_STRING:
3558 case MONO_TYPE_ARRAY:
3559 case MONO_TYPE_SZARRAY:
3560 mono_mb_emit_byte (mb, CEE_STLOC_3);
3562 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3563 mono_mb_emit_stloc (mb, loc1);
3565 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3567 mono_mb_emit_byte (mb, CEE_CALL);
3568 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3569 mono_mb_emit_byte (mb, CEE_DUP);
3571 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3572 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3573 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3574 mono_mb_emit_byte (mb, CEE_STLOC_3);
3576 mono_mb_emit_ldloc (mb, loc1);
3577 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3578 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3582 g_assert_not_reached ();
3588 g_assert_not_reached ();
3595 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
3596 MonoMarshalSpec *spec,
3597 int conv_arg, MonoType **conv_arg_type,
3598 MarshalAction action)
3600 MonoMethodBuilder *mb = m->mb;
3603 case MARSHAL_ACTION_CONV_IN: {
3604 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
3606 g_assert (t->type == MONO_TYPE_OBJECT);
3607 g_assert (!t->byref);
3609 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3610 mono_mb_emit_ldarg (mb, argnum);
3611 mono_mb_emit_icon (mb, encoding);
3612 mono_mb_emit_icall (mb, mono_marshal_asany);
3613 mono_mb_emit_stloc (mb, conv_arg);
3617 case MARSHAL_ACTION_PUSH:
3618 mono_mb_emit_ldloc (mb, conv_arg);
3621 case MARSHAL_ACTION_CONV_OUT: {
3622 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
3624 mono_mb_emit_ldarg (mb, argnum);
3625 mono_mb_emit_ldloc (mb, conv_arg);
3626 mono_mb_emit_icon (mb, encoding);
3627 mono_mb_emit_icall (mb, mono_marshal_free_asany);
3632 g_assert_not_reached ();
3639 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
3640 MonoMarshalSpec *spec,
3641 int conv_arg, MonoType **conv_arg_type,
3642 MarshalAction action)
3644 MonoMethodBuilder *mb = m->mb;
3648 klass = t->data.klass;
3651 case MARSHAL_ACTION_CONV_IN:
3652 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3653 klass->blittable || klass->enumtype)
3656 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3658 /* store the address of the source into local variable 0 */
3660 mono_mb_emit_ldarg (mb, argnum);
3662 mono_mb_emit_ldarg_addr (mb, argnum);
3664 mono_mb_emit_byte (mb, CEE_STLOC_0);
3666 /* allocate space for the native struct and
3667 * store the address into local variable 1 (dest) */
3668 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3669 mono_mb_emit_byte (mb, CEE_PREFIX1);
3670 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3671 mono_mb_emit_stloc (mb, conv_arg);
3674 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3675 mono_mb_emit_byte (mb, CEE_BRFALSE);
3677 mono_mb_emit_i4 (mb, 0);
3681 mono_mb_emit_ldloc (mb, conv_arg);
3682 mono_mb_emit_byte (mb, CEE_STLOC_1);
3684 /* emit valuetype conversion code */
3685 emit_struct_conv (mb, klass, FALSE);
3688 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3691 case MARSHAL_ACTION_PUSH:
3692 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3693 klass->blittable || klass->enumtype) {
3694 mono_mb_emit_ldarg (mb, argnum);
3697 mono_mb_emit_ldloc (mb, conv_arg);
3699 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3700 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3701 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3705 case MARSHAL_ACTION_CONV_OUT:
3706 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3707 klass->blittable || klass->enumtype)
3711 /* dst = argument */
3712 mono_mb_emit_ldarg (mb, argnum);
3713 mono_mb_emit_byte (mb, CEE_STLOC_1);
3715 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3716 mono_mb_emit_byte (mb, CEE_BRFALSE);
3718 mono_mb_emit_i4 (mb, 0);
3720 /* src = tmp_locals [i] */
3721 mono_mb_emit_ldloc (mb, conv_arg);
3722 mono_mb_emit_byte (mb, CEE_STLOC_0);
3724 /* emit valuetype conversion code */
3725 emit_struct_conv (mb, klass, TRUE);
3728 emit_struct_free (mb, klass, conv_arg);
3731 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3734 case MARSHAL_ACTION_CONV_RESULT:
3735 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3737 mono_mb_emit_byte (mb, CEE_STLOC_3);
3740 /* load pointer to returned value type */
3741 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3742 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3743 /* store the address of the source into local variable 0 */
3744 mono_mb_emit_byte (mb, CEE_STLOC_0);
3746 mono_mb_emit_ldloc_addr (mb, 3);
3747 mono_mb_emit_byte (mb, CEE_STLOC_1);
3749 /* emit valuetype conversion code */
3750 emit_struct_conv (mb, klass, TRUE);
3754 g_assert_not_reached ();
3761 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
3762 MonoMarshalSpec *spec,
3763 int conv_arg, MonoType **conv_arg_type,
3764 MarshalAction action)
3766 MonoMethodBuilder *mb = m->mb;
3767 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3768 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
3771 case MARSHAL_ACTION_CONV_IN:
3772 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3773 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3776 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3779 mono_mb_emit_ldarg (mb, argnum);
3780 mono_mb_emit_byte (mb, CEE_LDIND_I);
3782 mono_mb_emit_ldarg (mb, argnum);
3786 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3787 MonoException *exc = mono_get_exception_not_implemented (msg);
3790 mono_raise_exception (exc);
3793 mono_mb_emit_icall (mb, conv_to_icall (conv));
3795 mono_mb_emit_stloc (mb, conv_arg);
3798 case MARSHAL_ACTION_CONV_OUT:
3799 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3800 mono_mb_emit_ldarg (mb, argnum);
3801 mono_mb_emit_ldloc (mb, conv_arg);
3802 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
3803 mono_mb_emit_byte (mb, CEE_STIND_I);
3805 if (mono_marshal_need_free (t, m->piinfo, spec)) {
3806 mono_mb_emit_ldloc (mb, conv_arg);
3807 mono_mb_emit_icall (mb, g_free);
3812 case MARSHAL_ACTION_CONV_RESULT:
3813 mono_mb_emit_byte (mb, CEE_STLOC_0);
3814 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3817 switch (spec->native) {
3818 case MONO_NATIVE_LPWSTR:
3819 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
3822 g_warning ("marshalling conversion not implemented");
3823 g_assert_not_reached ();
3826 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
3828 mono_mb_emit_byte (mb, CEE_STLOC_3);
3830 /* free the string */
3831 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3832 mono_mb_emit_icall (mb, g_free);
3836 g_assert_not_reached ();
3843 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
3844 MonoMarshalSpec *spec,
3845 int conv_arg, MonoType **conv_arg_type,
3846 MarshalAction action)
3848 MonoMethodBuilder *mb = m->mb;
3849 MonoClass *klass = t->data.klass;
3853 case MARSHAL_ACTION_CONV_IN:
3854 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3855 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3857 m->orig_conv_args [argnum] = 0;
3859 if (klass->delegate) {
3860 g_assert (!t->byref);
3861 mono_mb_emit_ldarg (mb, argnum);
3862 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
3863 mono_mb_emit_stloc (mb, conv_arg);
3864 } else if (klass == mono_defaults.stringbuilder_class) {
3865 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3866 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
3868 g_assert (!t->byref);
3869 mono_mb_emit_ldarg (mb, argnum);
3872 mono_mb_emit_icall (mb, conv_to_icall (conv));
3874 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3875 MonoException *exc = mono_get_exception_not_implemented (msg);
3878 mono_raise_exception (exc);
3881 mono_mb_emit_stloc (mb, conv_arg);
3882 } else if (klass->blittable) {
3883 mono_mb_emit_ldarg (mb, argnum);
3884 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3885 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3886 mono_mb_emit_icon (mb, sizeof (MonoObject));
3887 mono_mb_emit_byte (mb, CEE_ADD);
3888 mono_mb_emit_stloc (mb, conv_arg);
3891 mono_mb_emit_byte (mb, CEE_LDNULL);
3892 mono_mb_emit_stloc (mb, conv_arg);
3895 /* we dont need any conversions for out parameters */
3896 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3899 mono_mb_emit_ldarg (mb, argnum);
3900 mono_mb_emit_byte (mb, CEE_LDIND_I);
3903 mono_mb_emit_ldarg (mb, argnum);
3904 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3905 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3908 /* store the address of the source into local variable 0 */
3909 mono_mb_emit_byte (mb, CEE_STLOC_0);
3910 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3911 mono_mb_emit_byte (mb, CEE_BRFALSE);
3913 mono_mb_emit_i4 (mb, 0);
3915 /* allocate space for the native struct and store the address */
3916 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3917 mono_mb_emit_byte (mb, CEE_PREFIX1);
3918 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3919 mono_mb_emit_stloc (mb, conv_arg);
3922 /* Need to store the original buffer so we can free it later */
3923 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3924 mono_mb_emit_ldloc (mb, conv_arg);
3925 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
3928 /* set the src_ptr */
3929 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3930 mono_mb_emit_icon (mb, sizeof (MonoObject));
3931 mono_mb_emit_byte (mb, CEE_ADD);
3932 mono_mb_emit_byte (mb, CEE_STLOC_0);
3935 mono_mb_emit_ldloc (mb, conv_arg);
3936 mono_mb_emit_byte (mb, CEE_STLOC_1);
3938 /* emit valuetype conversion code */
3939 emit_struct_conv (mb, klass, FALSE);
3941 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3945 case MARSHAL_ACTION_CONV_OUT:
3946 if (klass == mono_defaults.stringbuilder_class) {
3948 MonoMarshalNative encoding;
3949 MonoMarshalConv conv;
3951 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3952 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
3954 g_assert (!t->byref);
3955 g_assert (encoding != -1);
3957 mono_mb_emit_ldarg (mb, argnum);
3958 mono_mb_emit_ldloc (mb, conv_arg);
3960 mono_mb_emit_icall (mb, conv_to_icall (conv));
3963 mono_mb_emit_ldloc (mb, conv_arg);
3964 mono_mb_emit_icall (mb, g_free);
3969 if (klass->delegate)
3972 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3973 /* allocate a new object */
3974 mono_mb_emit_ldarg (mb, argnum);
3975 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3976 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3977 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
3978 mono_mb_emit_byte (mb, CEE_STIND_I);
3981 /* dst = *argument */
3982 mono_mb_emit_ldarg (mb, argnum);
3985 mono_mb_emit_byte (mb, CEE_LDIND_I);
3987 mono_mb_emit_byte (mb, CEE_STLOC_1);
3989 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3990 mono_mb_emit_byte (mb, CEE_BRFALSE);
3992 mono_mb_emit_i4 (mb, 0);
3994 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3995 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3996 mono_mb_emit_icon (mb, sizeof (MonoObject));
3997 mono_mb_emit_byte (mb, CEE_ADD);
3998 mono_mb_emit_byte (mb, CEE_STLOC_1);
4000 /* src = tmp_locals [i] */
4001 mono_mb_emit_ldloc (mb, conv_arg);
4002 mono_mb_emit_byte (mb, CEE_STLOC_0);
4004 /* emit valuetype conversion code */
4005 emit_struct_conv (mb, t->data.klass, TRUE);
4007 /* Free the structure returned by the native code */
4008 emit_struct_free (mb, klass, conv_arg);
4011 * If the native function changed the pointer, then free
4012 * the original structure plus the new pointer.
4014 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
4015 mono_mb_emit_ldloc (mb, conv_arg);
4016 mono_mb_emit_byte (mb, CEE_BEQ);
4018 mono_mb_emit_i4 (mb, 0);
4020 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
4021 g_assert (m->orig_conv_args [argnum]);
4023 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
4026 mono_mb_emit_ldloc (mb, conv_arg);
4027 mono_mb_emit_icall (mb, g_free);
4029 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
4032 /* Free the original structure passed to native code */
4033 emit_struct_free (mb, klass, conv_arg);
4035 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4038 case MARSHAL_ACTION_CONV_RESULT:
4040 mono_mb_emit_byte (mb, CEE_STLOC_0);
4042 /* Make a copy since emit_conv modifies local 0 */
4043 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4044 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4045 mono_mb_emit_stloc (mb, loc);
4047 mono_mb_emit_byte (mb, CEE_LDNULL);
4048 mono_mb_emit_byte (mb, CEE_STLOC_3);
4050 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4051 mono_mb_emit_byte (mb, CEE_BRFALSE);
4053 mono_mb_emit_i4 (mb, 0);
4055 /* allocate result object */
4057 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4058 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4059 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4060 mono_mb_emit_byte (mb, CEE_STLOC_3);
4064 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4065 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4066 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4067 mono_mb_emit_icon (mb, sizeof (MonoObject));
4068 mono_mb_emit_byte (mb, CEE_ADD);
4069 mono_mb_emit_byte (mb, CEE_STLOC_1);
4071 /* emit conversion code */
4072 emit_struct_conv (mb, klass, TRUE);
4074 emit_struct_free (mb, klass, loc);
4076 /* Free the pointer allocated by unmanaged code */
4077 mono_mb_emit_ldloc (mb, loc);
4078 mono_mb_emit_icall (mb, g_free);
4080 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4084 g_assert_not_reached ();
4091 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
4092 MonoMarshalSpec *spec,
4093 int conv_arg, MonoType **conv_arg_type,
4094 MarshalAction action)
4096 MonoMethodBuilder *mb = m->mb;
4097 MonoClass *klass = mono_class_from_mono_type (t);
4098 gboolean need_convert, need_free;
4101 case MARSHAL_ACTION_CONV_IN:
4102 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4103 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4105 if (klass->element_class->blittable) {
4106 mono_mb_emit_ldarg (mb, argnum);
4108 mono_mb_emit_byte (mb, CEE_LDIND_I);
4109 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
4110 mono_mb_emit_stloc (mb, conv_arg);
4114 guint32 label1, label2, label3;
4115 int index_var, src_var, dest_ptr, esize;
4116 MonoMarshalNative encoding;
4117 MonoMarshalConv conv;
4118 gboolean is_string = FALSE;
4120 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4122 eklass = klass->element_class;
4124 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4125 if (eklass == mono_defaults.string_class) {
4127 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4129 else if (eklass == mono_defaults.stringbuilder_class) {
4131 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
4136 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4137 mono_mb_emit_ldarg (mb, argnum);
4139 mono_mb_emit_byte (mb, CEE_LDIND_I);
4140 mono_mb_emit_stloc (mb, src_var);
4143 mono_mb_emit_ldloc (mb, src_var);
4144 mono_mb_emit_stloc (mb, conv_arg);
4145 mono_mb_emit_ldloc (mb, src_var);
4146 mono_mb_emit_byte (mb, CEE_BRFALSE);
4148 mono_mb_emit_i4 (mb, 0);
4152 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
4153 MonoException *exc = mono_get_exception_not_implemented (msg);
4156 mono_raise_exception (exc);
4161 esize = sizeof (gpointer);
4163 esize = mono_class_native_size (eklass, NULL);
4165 /* allocate space for the native struct and store the address */
4166 mono_mb_emit_icon (mb, esize);
4167 mono_mb_emit_ldloc (mb, src_var);
4168 mono_mb_emit_byte (mb, CEE_LDLEN);
4170 if (eklass == mono_defaults.string_class) {
4171 /* Make the array bigger for the terminating null */
4172 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4173 mono_mb_emit_byte (mb, CEE_ADD);
4175 mono_mb_emit_byte (mb, CEE_MUL);
4176 mono_mb_emit_byte (mb, CEE_PREFIX1);
4177 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4178 mono_mb_emit_stloc (mb, conv_arg);
4180 mono_mb_emit_ldloc (mb, conv_arg);
4181 mono_mb_emit_stloc (mb, dest_ptr);
4183 /* Emit marshalling loop */
4184 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4185 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4186 mono_mb_emit_stloc (mb, index_var);
4188 mono_mb_emit_ldloc (mb, index_var);
4189 mono_mb_emit_ldloc (mb, src_var);
4190 mono_mb_emit_byte (mb, CEE_LDLEN);
4191 mono_mb_emit_byte (mb, CEE_BGE);
4193 mono_mb_emit_i4 (mb, 0);
4195 /* Emit marshalling code */
4198 mono_mb_emit_ldloc (mb, dest_ptr);
4199 mono_mb_emit_ldloc (mb, src_var);
4200 mono_mb_emit_ldloc (mb, index_var);
4201 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4202 mono_mb_emit_icall (mb, conv_to_icall (conv));
4203 mono_mb_emit_byte (mb, CEE_STIND_I);
4206 /* set the src_ptr */
4207 mono_mb_emit_ldloc (mb, src_var);
4208 mono_mb_emit_ldloc (mb, index_var);
4209 mono_mb_emit_byte (mb, CEE_LDELEMA);
4210 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4211 mono_mb_emit_byte (mb, CEE_STLOC_0);
4214 mono_mb_emit_ldloc (mb, dest_ptr);
4215 mono_mb_emit_byte (mb, CEE_STLOC_1);
4217 /* emit valuetype conversion code */
4218 emit_struct_conv (mb, eklass, FALSE);
4221 mono_mb_emit_add_to_local (mb, index_var, 1);
4222 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
4224 mono_mb_emit_byte (mb, CEE_BR);
4225 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4227 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4229 if (eklass == mono_defaults.string_class) {
4230 /* Null terminate */
4231 mono_mb_emit_ldloc (mb, dest_ptr);
4232 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4233 mono_mb_emit_byte (mb, CEE_STIND_REF);
4236 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4241 case MARSHAL_ACTION_CONV_OUT:
4242 /* Character arrays are implicitly marshalled as [Out] */
4243 need_convert = (klass->element_class == mono_defaults.char_class) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
4244 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
4247 if (need_convert || need_free) {
4248 /* FIXME: Optimize blittable case */
4250 guint32 label1, label2, label3;
4251 int index_var, src_ptr, loc, esize;
4253 eklass = klass->element_class;
4254 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
4255 esize = sizeof (gpointer);
4257 esize = mono_class_native_size (eklass, NULL);
4258 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4259 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4262 mono_mb_emit_ldarg (mb, argnum);
4264 mono_mb_emit_byte (mb, CEE_LDIND_I);
4265 mono_mb_emit_byte (mb, CEE_BRFALSE);
4267 mono_mb_emit_i4 (mb, 0);
4269 mono_mb_emit_ldloc (mb, conv_arg);
4270 mono_mb_emit_stloc (mb, src_ptr);
4272 /* Emit marshalling loop */
4273 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4274 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4275 mono_mb_emit_stloc (mb, index_var);
4277 mono_mb_emit_ldloc (mb, index_var);
4278 mono_mb_emit_ldarg (mb, argnum);
4280 mono_mb_emit_byte (mb, CEE_LDIND_I);
4281 mono_mb_emit_byte (mb, CEE_LDLEN);
4282 mono_mb_emit_byte (mb, CEE_BGE);
4284 mono_mb_emit_i4 (mb, 0);
4286 /* Emit marshalling code */
4288 if (eklass == mono_defaults.stringbuilder_class) {
4289 gboolean need_free2;
4290 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
4292 g_assert (conv != -1);
4295 mono_mb_emit_ldarg (mb, argnum);
4297 mono_mb_emit_byte (mb, CEE_LDIND_I);
4298 mono_mb_emit_ldloc (mb, index_var);
4299 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4302 mono_mb_emit_ldloc (mb, src_ptr);
4303 mono_mb_emit_byte (mb, CEE_LDIND_I);
4305 mono_mb_emit_icall (mb, conv_to_icall (conv));
4309 mono_mb_emit_ldloc (mb, src_ptr);
4310 mono_mb_emit_byte (mb, CEE_LDIND_I);
4312 mono_mb_emit_icall (mb, g_free);
4315 else if (eklass == mono_defaults.string_class) {
4318 mono_mb_emit_ldloc (mb, src_ptr);
4319 mono_mb_emit_byte (mb, CEE_LDIND_I);
4321 mono_mb_emit_icall (mb, g_free);
4326 /* set the src_ptr */
4327 mono_mb_emit_ldloc (mb, src_ptr);
4328 mono_mb_emit_byte (mb, CEE_STLOC_0);
4331 mono_mb_emit_ldarg (mb, argnum);
4333 mono_mb_emit_byte (mb, CEE_LDIND_I);
4334 mono_mb_emit_ldloc (mb, index_var);
4335 mono_mb_emit_byte (mb, CEE_LDELEMA);
4336 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4337 mono_mb_emit_byte (mb, CEE_STLOC_1);
4339 /* emit valuetype conversion code */
4340 emit_struct_conv (mb, eklass, TRUE);
4344 mono_mb_emit_ldloc (mb, src_ptr);
4345 mono_mb_emit_stloc (mb, loc);
4346 mono_mb_emit_ldloc (mb, loc);
4348 emit_struct_free (mb, eklass, loc);
4352 mono_mb_emit_add_to_local (mb, index_var, 1);
4353 mono_mb_emit_add_to_local (mb, src_ptr, esize);
4355 mono_mb_emit_byte (mb, CEE_BR);
4356 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4358 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4359 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4363 case MARSHAL_ACTION_CONV_RESULT:
4364 /* fixme: we need conversions here */
4365 mono_mb_emit_byte (mb, CEE_STLOC_3);
4368 g_assert_not_reached ();
4375 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
4376 MonoMarshalSpec *spec,
4377 int conv_arg, MonoType **conv_arg_type,
4378 MarshalAction action)
4380 MonoMethodBuilder *mb = m->mb;
4383 case MARSHAL_ACTION_CONV_IN: {
4384 MonoType *local_type;
4385 int variant_bool = 0;
4389 local_type = &mono_defaults.int32_class->byval_arg;
4391 switch (spec->native) {
4392 case MONO_NATIVE_I1:
4393 local_type = &mono_defaults.byte_class->byval_arg;
4395 case MONO_NATIVE_VARIANTBOOL:
4396 local_type = &mono_defaults.int16_class->byval_arg;
4400 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
4404 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4405 conv_arg = mono_mb_add_local (mb, local_type);
4406 mono_mb_emit_ldarg (mb, argnum);
4407 mono_mb_emit_byte (mb, CEE_LDIND_I1);
4409 mono_mb_emit_byte (mb, CEE_NEG);
4410 mono_mb_emit_stloc (mb, conv_arg);
4414 case MARSHAL_ACTION_CONV_RESULT:
4415 /* maybe we need to make sure that it fits within 8 bits */
4416 mono_mb_emit_byte (mb, CEE_STLOC_3);
4420 g_assert_not_reached ();
4427 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
4428 MonoMarshalSpec *spec, int conv_arg,
4429 MonoType **conv_arg_type, MarshalAction action)
4431 /* Ensure that we have marshalling info for this param */
4432 mono_marshal_load_type_info (mono_class_from_mono_type (t));
4434 if (spec && spec->native == MONO_NATIVE_CUSTOM)
4435 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4437 if (spec && spec->native == MONO_NATIVE_ASANY)
4438 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4441 case MONO_TYPE_VALUETYPE:
4442 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4443 case MONO_TYPE_STRING:
4444 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4445 case MONO_TYPE_CLASS:
4446 case MONO_TYPE_OBJECT:
4447 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4448 case MONO_TYPE_ARRAY:
4449 case MONO_TYPE_SZARRAY:
4450 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4451 case MONO_TYPE_BOOLEAN:
4452 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4459 * mono_marshal_get_native_wrapper:
4460 * @method: The MonoMethod to wrap.
4462 * generates IL code for the pinvoke wrapper (the generated method
4463 * calls the unmanaged code in method->addr)
4466 mono_marshal_get_native_wrapper (MonoMethod *method)
4468 EmitMarshalContext m;
4469 MonoMethodSignature *sig, *csig;
4470 MonoMethodPInvoke *piinfo;
4471 MonoMethodBuilder *mb;
4472 MonoMarshalSpec **mspecs;
4476 gboolean pinvoke = FALSE;
4477 int i, argnum, *tmp_locals;
4479 const char *exc_class = "MissingMethodException";
4480 const char *exc_arg = NULL;
4482 g_assert (method != NULL);
4483 g_assert (method->signature->pinvoke);
4485 cache = method->klass->image->native_wrapper_cache;
4486 if ((res = mono_marshal_find_in_cache (cache, method)))
4489 sig = method->signature;
4491 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4492 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
4495 if (!method->addr) {
4497 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
4499 method->addr = mono_lookup_internal_call (method);
4502 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4504 mb->method->save_lmf = 1;
4506 piinfo = (MonoMethodPInvoke *)method;
4508 if (!method->addr) {
4509 mono_mb_emit_exception (mb, exc_class, exc_arg);
4510 csig = mono_metadata_signature_dup (sig);
4512 res = mono_mb_create_and_cache (cache, method,
4513 mb, csig, csig->param_count + 16);
4521 /* internal calls: we simply push all arguments and call the method (no conversions) */
4522 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4524 /* hack - string constructors returns a value */
4525 if (method->string_ctor) {
4526 csig = mono_metadata_signature_dup (sig);
4527 csig->ret = &mono_defaults.string_class->byval_arg;
4532 mono_mb_emit_byte (mb, CEE_LDARG_0);
4534 for (i = 0; i < sig->param_count; i++)
4535 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4537 g_assert (method->addr);
4538 mono_mb_emit_native_call (mb, csig, method->addr);
4539 emit_thread_interrupt_checkpoint (mb);
4540 mono_mb_emit_byte (mb, CEE_RET);
4542 csig = mono_metadata_signature_dup (csig);
4544 res = mono_mb_create_and_cache (cache, method,
4545 mb, csig, csig->param_count + 16);
4552 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
4553 mono_method_get_marshal_info (method, mspecs);
4555 /* pinvoke: we need to convert the arguments if necessary */
4557 /* we copy the signature, so that we can set pinvoke to 0 */
4558 csig = mono_metadata_signature_dup (sig);
4561 /* we allocate local for use with emit_struct_conv() */
4562 /* allocate local 0 (pointer) src_ptr */
4563 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4564 /* allocate local 1 (pointer) dst_ptr */
4565 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4566 /* allocate local 2 (boolean) delete_old */
4567 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4569 /* delete_old = FALSE */
4570 mono_mb_emit_icon (mb, 0);
4571 mono_mb_emit_byte (mb, CEE_STLOC_2);
4573 if (!MONO_TYPE_IS_VOID(sig->ret)) {
4574 /* allocate local 3 to store the return value */
4575 mono_mb_add_local (mb, sig->ret);
4578 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
4579 /* Return type custom marshaling */
4581 * Since we can't determine the return type of the unmanaged function,
4582 * we assume it returns a pointer, and pass that pointer to
4583 * MarshalNativeToManaged.
4585 csig->ret = &mono_defaults.int_class->byval_arg;
4588 /* we first do all conversions */
4589 tmp_locals = alloca (sizeof (int) * sig->param_count);
4590 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
4592 for (i = 0; i < sig->param_count; i ++) {
4593 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
4596 /* push all arguments */
4599 mono_mb_emit_byte (mb, CEE_LDARG_0);
4601 for (i = 0; i < sig->param_count; i++) {
4602 MonoType *t = sig->params [i];
4603 MonoMarshalSpec *spec = mspecs [i + 1];
4605 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY)))
4606 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
4608 argnum = i + sig->hasthis;
4611 case MONO_TYPE_BOOLEAN:
4613 g_assert (tmp_locals [i]);
4614 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4616 mono_mb_emit_ldarg (mb, argnum);
4631 mono_mb_emit_ldarg (mb, argnum);
4633 case MONO_TYPE_VALUETYPE:
4634 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
4636 case MONO_TYPE_STRING:
4637 case MONO_TYPE_CLASS:
4638 case MONO_TYPE_OBJECT:
4639 case MONO_TYPE_ARRAY:
4640 case MONO_TYPE_SZARRAY:
4641 g_assert (tmp_locals [i]);
4643 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4645 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4647 case MONO_TYPE_CHAR:
4648 /* fixme: dont know how to marshal that. We cant simply
4649 * convert it to a one byte UTF8 character, because an
4650 * unicode character may need more that one byte in UTF8 */
4651 mono_mb_emit_ldarg (mb, argnum);
4653 case MONO_TYPE_TYPEDBYREF:
4654 case MONO_TYPE_FNPTR:
4656 g_warning ("type 0x%02x unknown", t->type);
4657 g_assert_not_reached ();
4662 /* call the native method */
4663 mono_mb_emit_native_call (mb, csig, method->addr);
4665 /* Set LastError if needed */
4666 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
4667 MonoMethodSignature *lasterr_sig;
4669 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4670 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
4671 lasterr_sig->pinvoke = 1;
4673 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
4676 /* convert the result */
4677 if (!sig->ret->byref) {
4678 MonoMarshalSpec *spec = mspecs [0];
4679 type = sig->ret->type;
4681 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
4682 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4687 case MONO_TYPE_VOID:
4702 /* no conversions necessary */
4703 mono_mb_emit_byte (mb, CEE_STLOC_3);
4705 case MONO_TYPE_VALUETYPE:
4706 klass = sig->ret->data.klass;
4707 if (klass->enumtype) {
4708 type = sig->ret->data.klass->enum_basetype->type;
4711 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4713 case MONO_TYPE_STRING:
4714 case MONO_TYPE_CLASS:
4715 case MONO_TYPE_OBJECT:
4716 case MONO_TYPE_BOOLEAN:
4717 case MONO_TYPE_ARRAY:
4718 case MONO_TYPE_SZARRAY:
4719 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4721 case MONO_TYPE_CHAR:
4722 /* fixme: we need conversions here */
4723 mono_mb_emit_byte (mb, CEE_STLOC_3);
4725 case MONO_TYPE_TYPEDBYREF:
4726 case MONO_TYPE_FNPTR:
4728 g_warning ("return type 0x%02x unknown", sig->ret->type);
4729 g_assert_not_reached ();
4733 mono_mb_emit_byte (mb, CEE_STLOC_3);
4737 * Need to call this after converting the result since MONO_VTADDR needs
4738 * to be adjacent to the call instruction.
4740 emit_thread_interrupt_checkpoint (mb);
4742 /* we need to convert byref arguments back and free string arrays */
4743 for (i = 0; i < sig->param_count; i++) {
4744 MonoType *t = sig->params [i];
4745 MonoMarshalSpec *spec = mspecs [i + 1];
4747 argnum = i + sig->hasthis;
4749 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
4750 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
4755 case MONO_TYPE_STRING:
4756 case MONO_TYPE_VALUETYPE:
4757 case MONO_TYPE_CLASS:
4758 case MONO_TYPE_OBJECT:
4759 case MONO_TYPE_SZARRAY:
4760 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
4762 case MONO_TYPE_BOOLEAN:
4765 mono_mb_emit_ldarg (mb, argnum);
4766 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4767 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4768 mono_mb_emit_byte (mb, CEE_NEG);
4769 mono_mb_emit_byte (mb, CEE_STIND_I1);
4773 if (!MONO_TYPE_IS_VOID(sig->ret))
4774 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4776 mono_mb_emit_byte (mb, CEE_RET);
4778 csig = mono_metadata_signature_dup (sig);
4780 res = mono_mb_create_and_cache (cache, method,
4781 mb, csig, csig->param_count + 16);
4784 for (i = sig->param_count; i >= 0; i--)
4785 g_free (mspecs [i]);
4788 /* 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)); */
4794 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4796 static MonoReflectionType *
4797 type_from_handle (MonoType *handle)
4799 MonoDomain *domain = mono_domain_get ();
4800 MonoClass *klass = mono_class_from_mono_type (handle);
4802 MONO_ARCH_SAVE_REGS;
4804 mono_class_init (klass);
4805 return mono_type_get_object (domain, handle);
4809 * mono_marshal_get_isinst:
4810 * @klass: the type of the field
4812 * This method generates a function which can be used to check if an object is
4813 * an instance of the given type, icluding the case where the object is a proxy.
4814 * The generated function has the following signature:
4815 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4818 mono_marshal_get_isinst (MonoClass *klass)
4820 static MonoMethodSignature *isint_sig = NULL;
4821 static GHashTable *isinst_hash = NULL;
4823 int pos_was_ok, pos_failed, pos_end, pos_end2;
4825 MonoMethodBuilder *mb;
4827 EnterCriticalSection (&marshal_mutex);
4829 isinst_hash = g_hash_table_new (NULL, NULL);
4831 res = g_hash_table_lookup (isinst_hash, klass);
4832 LeaveCriticalSection (&marshal_mutex);
4837 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4838 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4839 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4840 isint_sig->pinvoke = 0;
4843 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4844 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
4847 mb->method->save_lmf = 1;
4849 /* check if the object is a proxy that needs special cast */
4850 mono_mb_emit_ldarg (mb, 0);
4851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4852 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4853 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4855 /* The result of MONO_ISINST can be:
4856 0) the type check succeeded
4857 1) the type check did not succeed
4858 2) a CanCastTo call is needed */
4860 mono_mb_emit_byte (mb, CEE_DUP);
4861 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4863 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4864 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4866 /* get the real proxy from the transparent proxy*/
4868 mono_mb_emit_ldarg (mb, 0);
4869 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4870 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4874 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4875 mono_mb_emit_byte (mb, CEE_LDNULL);
4876 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4880 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4881 mono_mb_emit_byte (mb, CEE_POP);
4882 mono_mb_emit_ldarg (mb, 0);
4886 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4887 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4888 mono_mb_emit_byte (mb, CEE_RET);
4890 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4897 * mono_marshal_get_castclass:
4898 * @klass: the type of the field
4900 * This method generates a function which can be used to cast an object to
4901 * an instance of the given type, icluding the case where the object is a proxy.
4902 * The generated function has the following signature:
4903 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4906 mono_marshal_get_castclass (MonoClass *klass)
4908 static MonoMethodSignature *castclass_sig = NULL;
4909 static GHashTable *castclass_hash = NULL;
4911 int pos_was_ok, pos_was_ok2;
4913 MonoMethodBuilder *mb;
4915 EnterCriticalSection (&marshal_mutex);
4916 if (!castclass_hash)
4917 castclass_hash = g_hash_table_new (NULL, NULL);
4919 res = g_hash_table_lookup (castclass_hash, klass);
4920 LeaveCriticalSection (&marshal_mutex);
4924 if (!castclass_sig) {
4925 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4926 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4927 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4928 castclass_sig->pinvoke = 0;
4931 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4932 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
4935 mb->method->save_lmf = 1;
4937 /* check if the object is a proxy that needs special cast */
4938 mono_mb_emit_ldarg (mb, 0);
4939 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4940 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4941 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4943 /* The result of MONO_ISINST can be:
4944 0) the cast is valid
4945 1) cast of unknown proxy type
4946 or an exception if the cast is is invalid
4949 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4951 /* get the real proxy from the transparent proxy*/
4953 mono_mb_emit_ldarg (mb, 0);
4954 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4955 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4958 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4961 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4962 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4963 mono_mb_emit_ldarg (mb, 0);
4966 mono_mb_emit_byte (mb, CEE_RET);
4968 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4975 mono_marshal_get_proxy_cancast (MonoClass *klass)
4977 static MonoMethodSignature *from_handle_sig = NULL;
4978 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4979 static MonoMethodSignature *isint_sig = NULL;
4980 static GHashTable *proxy_isinst_hash = NULL;
4982 int pos_failed, pos_end;
4984 MonoMethod *can_cast_to;
4985 MonoMethodDesc *desc;
4986 MonoMethodBuilder *mb;
4988 EnterCriticalSection (&marshal_mutex);
4989 if (!proxy_isinst_hash)
4990 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4992 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4993 LeaveCriticalSection (&marshal_mutex);
4998 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4999 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
5000 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
5001 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
5002 upgrade_proxy_sig->pinvoke = 1;
5004 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5005 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
5006 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
5008 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5009 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
5010 isint_sig->ret = &mono_defaults.object_class->byval_arg;
5011 isint_sig->pinvoke = 0;
5014 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
5015 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
5018 mb->method->save_lmf = 1;
5020 /* get the real proxy from the transparent proxy*/
5021 mono_mb_emit_ldarg (mb, 0);
5022 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5023 mono_mb_emit_byte (mb, CEE_LDIND_I);
5025 /* get the refletion type from the type handle */
5026 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5027 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
5028 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
5029 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5031 mono_mb_emit_ldarg (mb, 0);
5033 /* make the call to CanCastTo (type, ob) */
5034 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
5035 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
5036 g_assert (can_cast_to);
5037 mono_method_desc_free (desc);
5038 mono_mb_emit_byte (mb, CEE_CALLVIRT);
5039 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
5042 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
5044 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
5045 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5046 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
5047 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
5048 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5049 mono_mb_emit_ldarg (mb, 0);
5051 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
5052 emit_thread_interrupt_checkpoint (mb);
5054 mono_mb_emit_ldarg (mb, 0);
5055 pos_end = mono_mb_emit_branch (mb, CEE_BR);
5059 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
5060 mono_mb_emit_byte (mb, CEE_LDNULL);
5064 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
5065 mono_mb_emit_byte (mb, CEE_RET);
5067 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
5074 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
5077 klass = mono_class_from_mono_type (rtype->type);
5078 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
5079 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
5083 * mono_marshal_get_struct_to_ptr:
5086 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
5089 mono_marshal_get_struct_to_ptr (MonoClass *klass)
5091 MonoMethodBuilder *mb;
5092 static MonoMethod *stoptr = NULL;
5095 g_assert (klass != NULL);
5097 if (klass->str_to_ptr)
5098 return klass->str_to_ptr;
5101 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
5104 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
5106 if (klass->blittable) {
5107 mono_mb_emit_byte (mb, CEE_LDARG_1);
5108 mono_mb_emit_byte (mb, CEE_LDARG_0);
5109 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5110 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
5111 mono_mb_emit_byte (mb, CEE_PREFIX1);
5112 mono_mb_emit_byte (mb, CEE_CPBLK);
5115 /* allocate local 0 (pointer) src_ptr */
5116 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5117 /* allocate local 1 (pointer) dst_ptr */
5118 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5119 /* allocate local 2 (boolean) delete_old */
5120 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5121 mono_mb_emit_byte (mb, CEE_LDARG_2);
5122 mono_mb_emit_byte (mb, CEE_STLOC_2);
5124 /* initialize src_ptr to point to the start of object data */
5125 mono_mb_emit_byte (mb, CEE_LDARG_0);
5126 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5127 mono_mb_emit_byte (mb, CEE_STLOC_0);
5129 /* initialize dst_ptr */
5130 mono_mb_emit_byte (mb, CEE_LDARG_1);
5131 mono_mb_emit_byte (mb, CEE_STLOC_1);
5133 emit_struct_conv (mb, klass, FALSE);
5136 mono_mb_emit_byte (mb, CEE_RET);
5138 res = mono_mb_create_method (mb, stoptr->signature, 0);
5141 klass->str_to_ptr = res;
5146 * mono_marshal_get_ptr_to_struct:
5149 * generates IL code for PtrToStructure (IntPtr src, object structure)
5152 mono_marshal_get_ptr_to_struct (MonoClass *klass)
5154 MonoMethodBuilder *mb;
5155 static MonoMethod *ptostr = NULL;
5158 g_assert (klass != NULL);
5160 if (klass->ptr_to_str)
5161 return klass->ptr_to_str;
5164 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
5167 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
5169 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
5170 mono_mb_emit_byte (mb, CEE_LDARG_1);
5171 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5172 mono_mb_emit_byte (mb, CEE_LDARG_0);
5173 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
5174 mono_mb_emit_byte (mb, CEE_PREFIX1);
5175 mono_mb_emit_byte (mb, CEE_CPBLK);
5178 /* allocate local 0 (pointer) src_ptr */
5179 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5180 /* allocate local 1 (pointer) dst_ptr */
5181 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5183 /* initialize src_ptr to point to the start of object data */
5184 mono_mb_emit_byte (mb, CEE_LDARG_0);
5185 mono_mb_emit_byte (mb, CEE_STLOC_0);
5187 /* initialize dst_ptr */
5188 mono_mb_emit_byte (mb, CEE_LDARG_1);
5189 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5190 mono_mb_emit_byte (mb, CEE_STLOC_1);
5192 emit_struct_conv (mb, klass, TRUE);
5195 mono_mb_emit_byte (mb, CEE_RET);
5197 res = mono_mb_create_method (mb, ptostr->signature, 0);
5200 klass->ptr_to_str = res;
5205 * generates IL code for the synchronized wrapper: the generated method
5206 * calls METHOD while locking 'this' or the parent type.
5209 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
5211 static MonoMethodSignature *from_handle_sig = NULL;
5212 static MonoMethod *enter_method, *exit_method;
5213 MonoMethodSignature *sig;
5214 MonoExceptionClause *clause;
5215 MonoMethodHeader *header;
5216 MonoMethodBuilder *mb;
5219 int i, pos, this_local, ret_local;
5223 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
5226 cache = method->klass->image->synchronized_cache;
5227 if ((res = mono_marshal_find_in_cache (cache, method)))
5230 sig = method->signature;
5232 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
5235 if (!MONO_TYPE_IS_VOID (sig->ret))
5236 ret_local = mono_mb_add_local (mb, sig->ret);
5239 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5241 clause = g_new0 (MonoExceptionClause, 1);
5242 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
5244 if (!enter_method) {
5245 MonoMethodDesc *desc;
5247 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
5248 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
5249 g_assert (enter_method);
5250 mono_method_desc_free (desc);
5251 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
5252 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
5253 g_assert (exit_method);
5254 mono_method_desc_free (desc);
5257 * GetTypeFromHandle isn't called as a managed method because it has
5258 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
5259 * transformed into something else by the JIT.
5261 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5262 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
5263 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
5266 /* Push this or the type object */
5267 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
5268 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5269 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
5270 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
5271 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5274 mono_mb_emit_ldarg (mb, 0);
5275 mono_mb_emit_stloc (mb, this_local);
5277 /* Call Monitor::Enter() */
5278 mono_mb_emit_ldloc (mb, this_local);
5279 mono_mb_emit_managed_call (mb, enter_method, NULL);
5281 clause->try_offset = mb->pos;
5283 /* Call the method */
5285 mono_mb_emit_ldarg (mb, 0);
5286 for (i = 0; i < sig->param_count; i++)
5287 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
5288 mono_mb_emit_managed_call (mb, method, method->signature);
5289 if (!MONO_TYPE_IS_VOID (sig->ret))
5290 mono_mb_emit_stloc (mb, ret_local);
5292 mono_mb_emit_byte (mb, CEE_LEAVE);
5294 mono_mb_emit_i4 (mb, 0);
5296 clause->try_len = mb->pos - clause->try_offset;
5297 clause->handler_offset = mb->pos;
5299 /* Call Monitor::Exit() */
5300 mono_mb_emit_ldloc (mb, this_local);
5301 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
5302 mono_mb_emit_managed_call (mb, exit_method, NULL);
5303 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
5305 clause->handler_len = mb->pos - clause->handler_offset;
5307 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
5308 if (!MONO_TYPE_IS_VOID (sig->ret))
5309 mono_mb_emit_ldloc (mb, ret_local);
5310 mono_mb_emit_byte (mb, CEE_RET);
5312 res = mono_mb_create_and_cache (cache, method,
5313 mb, sig, sig->param_count + 16);
5316 header = ((MonoMethodNormal *)res)->header;
5317 header->num_clauses = 1;
5318 header->clauses = clause;
5324 mono_marshal_get_stelemref ()
5326 static MonoMethod* ret = NULL;
5327 MonoMethodSignature *sig;
5328 MonoMethodBuilder *mb;
5330 guint32 b1, b2, b3, b4;
5337 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
5340 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5342 /* void stelemref (void* array, int idx, void* value) */
5343 sig->ret = &mono_defaults.void_class->byval_arg;
5344 sig->params [0] = &mono_defaults.int_class->byval_arg;
5345 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
5346 sig->params [2] = &mono_defaults.int_class->byval_arg;
5348 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5349 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5357 aklass = array->vtable->klass->element_class;
5358 vklass = value->vtable->klass;
5360 if (vklass->idepth < aklass->idepth)
5363 if (vklass->supertypes [aklass->idepth - 1] != aklass)
5367 array [idx] = value;
5371 if (mono_object_isinst (value, aklass))
5374 throw new ArrayTypeMismatchException ();
5378 mono_mb_emit_ldarg (mb, 0);
5379 mono_mb_emit_ldarg (mb, 1);
5380 mono_mb_emit_byte (mb, CEE_LDELEMA);
5381 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.int_class));
5382 mono_mb_emit_byte (mb, CEE_POP);
5384 /* if (!value) goto do_store */
5385 mono_mb_emit_ldarg (mb, 2);
5386 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5388 /* aklass = array->vtable->klass->element_class */
5389 mono_mb_emit_ldarg (mb, 0);
5390 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
5391 mono_mb_emit_byte (mb, CEE_LDIND_I);
5392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
5393 mono_mb_emit_byte (mb, CEE_LDIND_I);
5394 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
5395 mono_mb_emit_byte (mb, CEE_LDIND_I);
5396 mono_mb_emit_stloc (mb, aklass);
5398 /* vklass = value->vtable->klass */
5399 mono_mb_emit_ldarg (mb, 2);
5400 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
5401 mono_mb_emit_byte (mb, CEE_LDIND_I);
5402 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
5403 mono_mb_emit_byte (mb, CEE_LDIND_I);
5404 mono_mb_emit_stloc (mb, vklass);
5406 /* if (vklass->idepth < aklass->idepth) goto failue */
5407 mono_mb_emit_ldloc (mb, vklass);
5408 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5409 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5411 mono_mb_emit_ldloc (mb, aklass);
5412 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5413 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5415 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
5417 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
5418 mono_mb_emit_ldloc (mb, vklass);
5419 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
5420 mono_mb_emit_byte (mb, CEE_LDIND_I);
5422 mono_mb_emit_ldloc (mb, aklass);
5423 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5424 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5425 mono_mb_emit_icon (mb, 1);
5426 mono_mb_emit_byte (mb, CEE_SUB);
5427 mono_mb_emit_icon (mb, sizeof (void*));
5428 mono_mb_emit_byte (mb, CEE_MUL);
5429 mono_mb_emit_byte (mb, CEE_ADD);
5430 mono_mb_emit_byte (mb, CEE_LDIND_I);
5432 mono_mb_emit_ldloc (mb, aklass);
5434 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
5438 mono_mb_patch_addr (mb, b1, mb->pos - (b1 + 4));
5439 mono_mb_emit_ldarg (mb, 0);
5440 mono_mb_emit_ldarg (mb, 1);
5441 mono_mb_emit_ldarg (mb, 2);
5442 mono_mb_emit_byte (mb, CEE_STELEM_I);
5444 mono_mb_emit_byte (mb, CEE_RET);
5447 mono_mb_patch_addr (mb, b2, mb->pos - (b2 + 4));
5448 mono_mb_patch_addr (mb, b3, mb->pos - (b3 + 4));
5450 mono_mb_emit_ldarg (mb, 2);
5451 mono_mb_emit_ldloc (mb, aklass);
5452 mono_mb_emit_icall (mb, mono_object_isinst);
5454 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5455 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
5456 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
5458 mono_mb_emit_byte (mb, CEE_RET);
5459 ret = mono_mb_create_method (mb, sig, 4);
5463 /* FIXME: on win32 we should probably use GlobalAlloc(). */
5465 mono_marshal_alloc (gpointer size)
5469 MONO_ARCH_SAVE_REGS;
5471 if ((gulong)size == 0)
5472 /* This returns a valid pointer for size 0 on MS.NET */
5475 res = g_try_malloc ((gulong)size);
5477 mono_gc_out_of_memory ((gulong)size);
5483 mono_marshal_free (gpointer ptr)
5485 MONO_ARCH_SAVE_REGS;
5491 mono_marshal_free_array (gpointer *ptr, int size)
5498 for (i = 0; i < size; i++)
5504 mono_marshal_realloc (gpointer ptr, gpointer size)
5506 MONO_ARCH_SAVE_REGS;
5508 return g_try_realloc (ptr, (gulong)size);
5512 mono_marshal_string_to_utf16 (MonoString *s)
5514 return s ? mono_string_chars (s) : NULL;
5518 * mono_marshal_set_last_error:
5520 * This function is invoked to set the last error value from a P/Invoke call
5521 * which has SetLastError set.
5524 mono_marshal_set_last_error (void)
5527 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
5529 TlsSetValue (last_error_tls_id, (gpointer)errno);
5534 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
5535 gpointer dest, gint32 length)
5540 MONO_ARCH_SAVE_REGS;
5542 MONO_CHECK_ARG_NULL (src);
5543 MONO_CHECK_ARG_NULL (dest);
5545 g_assert (src->obj.vtable->klass->rank == 1);
5546 g_assert (start_index >= 0);
5547 g_assert (length >= 0);
5548 g_assert (start_index + length <= mono_array_length (src));
5550 element_size = mono_array_element_size (src->obj.vtable->klass);
5552 source_addr = mono_array_addr_with_size (src, element_size, start_index);
5554 memcpy (dest, source_addr, length * element_size);
5558 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
5559 MonoArray *dest, gint32 length)
5564 MONO_ARCH_SAVE_REGS;
5566 MONO_CHECK_ARG_NULL (src);
5567 MONO_CHECK_ARG_NULL (dest);
5569 g_assert (dest->obj.vtable->klass->rank == 1);
5570 g_assert (start_index >= 0);
5571 g_assert (length >= 0);
5572 g_assert (start_index + length <= mono_array_length (dest));
5574 element_size = mono_array_element_size (dest->obj.vtable->klass);
5576 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
5578 memcpy (dest_addr, src, length * element_size);
5581 #if NO_UNALIGNED_ACCESS
5582 #define RETURN_UNALIGNED(type, addr) \
5585 memcpy(&val, p + offset, sizeof(val)); \
5588 #define WRITE_UNALIGNED(type, addr, val) \
5589 memcpy(addr, &val, sizeof(type))
5591 #define RETURN_UNALIGNED(type, addr) \
5592 return *(type*)(p + offset);
5593 #define WRITE_UNALIGNED(type, addr, val) \
5594 (*(type *)(addr) = (val))
5598 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
5602 MONO_ARCH_SAVE_REGS;
5604 RETURN_UNALIGNED(gpointer, p + offset);
5608 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
5612 MONO_ARCH_SAVE_REGS;
5614 return *(unsigned char*)(p + offset);
5618 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
5622 MONO_ARCH_SAVE_REGS;
5624 RETURN_UNALIGNED(gint16, p + offset);
5628 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
5632 MONO_ARCH_SAVE_REGS;
5634 RETURN_UNALIGNED(gint32, p + offset);
5638 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
5642 MONO_ARCH_SAVE_REGS;
5644 RETURN_UNALIGNED(gint64, p + offset);
5648 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
5652 MONO_ARCH_SAVE_REGS;
5654 *(unsigned char*)(p + offset) = val;
5658 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
5662 MONO_ARCH_SAVE_REGS;
5664 WRITE_UNALIGNED(gpointer, p + offset, val);
5668 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5672 MONO_ARCH_SAVE_REGS;
5674 WRITE_UNALIGNED(gint16, p + offset, val);
5678 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5682 MONO_ARCH_SAVE_REGS;
5684 WRITE_UNALIGNED(gint32, p + offset, val);
5688 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5692 MONO_ARCH_SAVE_REGS;
5694 WRITE_UNALIGNED(gint64, p + offset, val);
5698 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5700 MONO_ARCH_SAVE_REGS;
5703 return mono_string_new (mono_domain_get (), "");
5705 return mono_string_new (mono_domain_get (), ptr);
5709 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5711 MONO_ARCH_SAVE_REGS;
5714 return mono_string_new (mono_domain_get (), "");
5716 return mono_string_new_len (mono_domain_get (), ptr, len);
5720 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5722 MonoDomain *domain = mono_domain_get ();
5726 MONO_ARCH_SAVE_REGS;
5729 return mono_string_new (mono_domain_get (), "");
5734 return mono_string_new_utf16 (domain, ptr, len);
5738 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5740 MonoDomain *domain = mono_domain_get ();
5742 MONO_ARCH_SAVE_REGS;
5745 return mono_string_new (mono_domain_get (), "");
5747 return mono_string_new_utf16 (domain, ptr, len);
5751 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5753 MONO_ARCH_SAVE_REGS;
5755 g_warning ("PtrToStringBSTR not implemented");
5756 g_assert_not_reached ();
5762 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5764 MONO_ARCH_SAVE_REGS;
5766 return ((guint32)TlsGetValue (last_error_tls_id));
5770 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5776 MONO_ARCH_SAVE_REGS;
5778 MONO_CHECK_ARG_NULL (rtype);
5781 klass = mono_class_from_mono_type (type);
5782 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5784 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5788 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5789 exc = mono_get_exception_argument ("t", msg);
5791 mono_raise_exception (exc);
5795 return mono_class_native_size (klass, NULL);
5799 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5804 MONO_ARCH_SAVE_REGS;
5806 MONO_CHECK_ARG_NULL (obj);
5807 MONO_CHECK_ARG_NULL (dst);
5809 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5813 pa [2] = &delete_old;
5815 mono_runtime_invoke (method, NULL, pa, NULL);
5819 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5824 MONO_ARCH_SAVE_REGS;
5826 MONO_CHECK_ARG_NULL (src);
5827 MONO_CHECK_ARG_NULL (dst);
5829 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5834 mono_runtime_invoke (method, NULL, pa, NULL);
5838 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5840 MonoDomain *domain = mono_domain_get ();
5843 MONO_ARCH_SAVE_REGS;
5845 MONO_CHECK_ARG_NULL (src);
5846 MONO_CHECK_ARG_NULL (type);
5848 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5850 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5856 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5858 MonoMarshalType *info;
5861 int i, match_index = -1;
5863 MONO_ARCH_SAVE_REGS;
5865 MONO_CHECK_ARG_NULL (type);
5866 MONO_CHECK_ARG_NULL (field_name);
5868 fname = mono_string_to_utf8 (field_name);
5869 klass = mono_class_from_mono_type (type->type);
5871 while (klass && match_index == -1) {
5872 for (i = 0; i < klass->field.count; ++i) {
5873 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5879 if (match_index == -1)
5880 klass = klass->parent;
5885 if(match_index == -1) {
5889 /* Get back original class instance */
5890 klass = mono_class_from_mono_type (type->type);
5892 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5893 exc = mono_get_exception_argument ("fieldName", tmp);
5896 mono_raise_exception ((MonoException*)exc);
5899 info = mono_marshal_load_type_info (klass);
5900 return info->fields [match_index].offset;
5904 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5906 MONO_ARCH_SAVE_REGS;
5908 return mono_string_to_utf8 (string);
5912 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5914 MONO_ARCH_SAVE_REGS;
5919 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5923 mono_struct_delete_old (MonoClass *klass, char *ptr)
5925 MonoMarshalType *info;
5928 info = mono_marshal_load_type_info (klass);
5930 for (i = 0; i < info->num_fields; i++) {
5931 MonoMarshalNative ntype;
5932 MonoMarshalConv conv;
5933 MonoType *ftype = info->fields [i].field->type;
5936 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5939 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5940 klass->unicode, &conv);
5942 cpos = ptr + info->fields [i].offset;
5945 case MONO_MARSHAL_CONV_NONE:
5946 if (MONO_TYPE_ISSTRUCT (ftype)) {
5947 mono_struct_delete_old (ftype->data.klass, cpos);
5951 case MONO_MARSHAL_CONV_STR_LPWSTR:
5952 case MONO_MARSHAL_CONV_STR_LPSTR:
5953 case MONO_MARSHAL_CONV_STR_LPTSTR:
5954 case MONO_MARSHAL_CONV_STR_BSTR:
5955 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5956 case MONO_MARSHAL_CONV_STR_TBSTR:
5957 g_free (*(gpointer *)cpos);
5966 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5970 MONO_ARCH_SAVE_REGS;
5972 MONO_CHECK_ARG_NULL (src);
5973 MONO_CHECK_ARG_NULL (type);
5975 klass = mono_class_from_mono_type (type->type);
5977 mono_struct_delete_old (klass, (char *)src);
5981 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5983 /* FIXME: Call AllocCoTaskMem under windows */
5984 MONO_ARCH_SAVE_REGS;
5986 return g_try_malloc ((gulong)size);
5990 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5992 /* FIXME: Call FreeCoTaskMem under windows */
5993 MONO_ARCH_SAVE_REGS;
5999 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
6001 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
6005 mono_marshal_load_type_info (MonoClass* klass)
6007 int i, j, count = 0, native_size = 0, min_align = 1;
6008 MonoMarshalType *info;
6011 g_assert (klass != NULL);
6013 if (klass->marshal_info)
6014 return klass->marshal_info;
6017 mono_class_init (klass);
6019 for (i = 0; i < klass->field.count; ++i) {
6020 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
6022 if (mono_field_is_deleted (&klass->fields [i]))
6027 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
6029 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
6030 info->num_fields = count;
6032 /* Try to find a size for this type in metadata */
6033 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
6035 if (klass->parent) {
6036 int parent_size = mono_class_native_size (klass->parent, NULL);
6038 /* Add parent size to real size */
6039 native_size += parent_size;
6040 info->native_size = parent_size;
6043 for (j = i = 0; i < klass->field.count; ++i) {
6046 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
6049 if (mono_field_is_deleted (&klass->fields [i]))
6051 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
6052 mono_metadata_field_info (klass->image, klass->field.first + i,
6053 NULL, NULL, &info->fields [j].mspec);
6055 info->fields [j].field = &klass->fields [i];
6057 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
6058 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
6059 /* This field is a hack inserted by MCS to empty structures */
6064 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
6065 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
6066 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
6067 &align, TRUE, klass->unicode);
6068 align = klass->packing_size ? MIN (klass->packing_size, align): align;
6069 min_align = MAX (align, min_align);
6070 info->fields [j].offset = info->native_size;
6071 info->fields [j].offset += align - 1;
6072 info->fields [j].offset &= ~(align - 1);
6073 info->native_size = info->fields [j].offset + size;
6075 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
6076 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
6077 &align, TRUE, klass->unicode);
6078 align = klass->packing_size ? MIN (klass->packing_size, align): align;
6079 min_align = MAX (align, min_align);
6080 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
6081 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
6087 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6088 info->native_size = MAX (native_size, info->native_size);
6091 if (info->native_size & (min_align - 1)) {
6092 info->native_size += min_align - 1;
6093 info->native_size &= ~(min_align - 1);
6096 /* Update the class's blittable info, if the layouts don't match */
6097 if (info->native_size != mono_class_value_size (klass, NULL))
6098 klass->blittable = FALSE;
6100 /* If this is an array type, ensure that we have element info */
6101 if (klass->element_class) {
6102 mono_marshal_load_type_info (klass->element_class);
6105 return klass->marshal_info;
6109 * mono_class_native_size:
6112 * Returns: the native size of an object instance (when marshaled
6113 * to unmanaged code)
6116 mono_class_native_size (MonoClass *klass, guint32 *align)
6119 if (!klass->marshal_info)
6120 mono_marshal_load_type_info (klass);
6123 *align = klass->min_align;
6125 return klass->marshal_info->native_size;
6129 * mono_type_native_stack_size:
6130 * @t: the type to return the size it uses on the stack
6132 * Returns: the number of bytes required to hold an instance of this
6133 * type on the native stack
6136 mono_type_native_stack_size (MonoType *t, gint *align)
6140 g_assert (t != NULL);
6151 case MONO_TYPE_BOOLEAN:
6152 case MONO_TYPE_CHAR:
6161 case MONO_TYPE_STRING:
6162 case MONO_TYPE_OBJECT:
6163 case MONO_TYPE_CLASS:
6164 case MONO_TYPE_SZARRAY:
6166 case MONO_TYPE_FNPTR:
6167 case MONO_TYPE_ARRAY:
6168 case MONO_TYPE_TYPEDBYREF:
6179 case MONO_TYPE_VALUETYPE: {
6182 if (t->data.klass->enumtype)
6183 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
6185 size = mono_class_native_size (t->data.klass, align);
6186 *align = *align + 3;
6196 g_error ("type 0x%02x unknown", t->type);
6201 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
6202 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
6203 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
6204 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
6207 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
6208 gboolean as_field, gboolean unicode)
6210 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
6213 switch (native_type) {
6214 case MONO_NATIVE_BOOLEAN:
6217 case MONO_NATIVE_I1:
6218 case MONO_NATIVE_U1:
6221 case MONO_NATIVE_I2:
6222 case MONO_NATIVE_U2:
6223 case MONO_NATIVE_VARIANTBOOL:
6226 case MONO_NATIVE_I4:
6227 case MONO_NATIVE_U4:
6228 case MONO_NATIVE_ERROR:
6231 case MONO_NATIVE_I8:
6232 case MONO_NATIVE_U8:
6233 *align = ALIGNMENT(guint64);
6235 case MONO_NATIVE_R4:
6238 case MONO_NATIVE_R8:
6239 *align = ALIGNMENT(double);
6241 case MONO_NATIVE_INT:
6242 case MONO_NATIVE_UINT:
6243 case MONO_NATIVE_LPSTR:
6244 case MONO_NATIVE_LPWSTR:
6245 case MONO_NATIVE_LPTSTR:
6246 case MONO_NATIVE_BSTR:
6247 case MONO_NATIVE_ANSIBSTR:
6248 case MONO_NATIVE_TBSTR:
6249 case MONO_NATIVE_LPARRAY:
6250 case MONO_NATIVE_SAFEARRAY:
6251 case MONO_NATIVE_IUNKNOWN:
6252 case MONO_NATIVE_IDISPATCH:
6253 case MONO_NATIVE_INTERFACE:
6254 case MONO_NATIVE_ASANY:
6255 case MONO_NATIVE_FUNC:
6256 case MONO_NATIVE_LPSTRUCT:
6257 *align = ALIGNMENT(gpointer);
6258 return sizeof (gpointer);
6259 case MONO_NATIVE_STRUCT:
6260 klass = mono_class_from_mono_type (type);
6261 return mono_class_native_size (klass, align);
6262 case MONO_NATIVE_BYVALTSTR: {
6263 int esize = unicode ? 2: 1;
6266 return mspec->data.array_data.num_elem * esize;
6268 case MONO_NATIVE_BYVALARRAY: {
6270 klass = mono_class_from_mono_type (type);
6271 esize = mono_class_native_size (klass->element_class, align);
6273 return mspec->data.array_data.num_elem * esize;
6275 case MONO_NATIVE_CUSTOM:
6276 g_assert_not_reached ();
6278 case MONO_NATIVE_CURRENCY:
6279 case MONO_NATIVE_VBBYREFSTR:
6281 g_error ("native type %02x not implemented", native_type);
6284 g_assert_not_reached ();
6289 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
6297 t = &o->vtable->klass->byval_arg;
6304 case MONO_TYPE_BOOLEAN:
6307 case MONO_TYPE_CHAR:
6312 return mono_object_unbox (o);
6314 case MONO_TYPE_STRING:
6315 switch (string_encoding) {
6316 case MONO_NATIVE_LPWSTR:
6317 return mono_string_to_utf16 ((MonoString*)o);
6319 case MONO_NATIVE_LPSTR:
6320 return mono_string_to_utf8 ((MonoString*)o);
6323 g_warning ("marshaling conversion %d not implemented", string_encoding);
6324 g_assert_not_reached ();
6327 case MONO_TYPE_CLASS:
6328 case MONO_TYPE_VALUETYPE: {
6332 MonoBoolean delete_old = FALSE;
6334 klass = t->data.klass;
6336 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
6339 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6340 klass->blittable || klass->enumtype)
6341 return mono_object_unbox (o);
6343 res = g_malloc0 (mono_class_native_size (klass, NULL));
6345 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
6349 pa [2] = &delete_old;
6351 mono_runtime_invoke (method, NULL, pa, NULL);
6357 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
6363 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
6371 t = &o->vtable->klass->byval_arg;
6373 case MONO_TYPE_STRING:
6374 switch (string_encoding) {
6375 case MONO_NATIVE_LPWSTR:
6378 case MONO_NATIVE_LPSTR:
6382 g_warning ("marshaling conversion %d not implemented", string_encoding);
6383 g_assert_not_reached ();
6386 case MONO_TYPE_CLASS:
6387 case MONO_TYPE_VALUETYPE: {
6388 klass = t->data.klass;
6390 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6391 klass->blittable || klass->enumtype)
6394 mono_struct_delete_old (klass, ptr);