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 for (i = 0; i < klass->method.count; ++i) {
58 if (klass->methods [i]->name[0] == name [0] &&
59 !strcmp (name, klass->methods [i]->name) &&
60 klass->methods [i]->signature->param_count == param_count) {
61 res = klass->methods [i];
68 #ifdef DEBUG_RUNTIME_CODE
70 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
72 return g_strdup (" ");
75 static MonoDisHelper marshal_dh = {
85 /* This mutex protects the various marshalling related caches in MonoImage */
86 static CRITICAL_SECTION marshal_mutex;
88 /* Maps wrapper methods to the methods they wrap */
89 static MonoGHashTable *wrapper_hash;
91 static guint32 last_error_tls_id;
94 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
96 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
98 mono_register_jit_icall (func, name, sig, save);
102 mono_marshal_init (void)
104 static gboolean module_initialized = FALSE;
106 if (!module_initialized) {
107 module_initialized = TRUE;
108 InitializeCriticalSection (&marshal_mutex);
109 MONO_GC_REGISTER_ROOT (wrapper_hash);
110 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
111 last_error_tls_id = TlsAlloc ();
113 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
114 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
115 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
116 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
117 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
118 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
119 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
120 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
121 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
122 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
123 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
124 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
125 register_icall (mono_marshal_string_array, "mono_marshal_string_array", "ptr object", FALSE);
126 register_icall (mono_marshal_string_array_to_unicode, "mono_marshal_string_array_to_unicode", "ptr object", FALSE);
127 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32", FALSE);
128 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32", FALSE);
129 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
130 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
131 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
132 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
133 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
134 register_icall (g_free, "g_free", "void ptr", FALSE);
135 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
140 mono_delegate_to_ftnptr (MonoDelegate *delegate)
142 MonoMethod *method, *wrapper, *invoke;
143 MonoMarshalSpec **mspecs;
150 if (delegate->delegate_trampoline)
151 return delegate->delegate_trampoline;
153 klass = ((MonoObject *)delegate)->vtable->klass;
154 g_assert (klass->delegate);
157 method = delegate->method_info->method;
158 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
160 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
161 mono_method_get_marshal_info (invoke, mspecs);
163 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
165 for (i = invoke->signature->param_count; i >= 0; i--)
169 delegate->delegate_trampoline = mono_compile_method (wrapper);
171 return delegate->delegate_trampoline;
175 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
180 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
182 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
184 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
186 /* FIXME: discard the wrapper and call the original method */
187 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
193 mono_delegate_free_ftnptr (MonoDelegate *delegate)
198 ptr2 = delegate->delegate_trampoline;
200 ptr = InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
201 ji = mono_jit_info_table_find (mono_domain_get (), ptr);
204 if (!delegate->target) {
205 /* The wrapper method is shared between delegates -> no need to free it */
209 mono_runtime_free_method (ji->method);
213 mono_array_to_savearray (MonoArray *array)
218 g_assert_not_reached ();
223 mono_array_to_lparray (MonoArray *array)
228 /* fixme: maybe we need to make a copy */
229 return array->vector;
233 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
235 GError *error = NULL;
245 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
247 if (items_written > mono_stringbuilder_capacity (sb))
248 items_written = mono_stringbuilder_capacity (sb);
251 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
252 sb->length = items_written;
254 g_error_free (error);
260 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
267 g_assert (mono_string_chars (sb->str) == text);
269 for (len = 0; text [len] != 0; ++len)
276 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
278 GError *error = NULL;
285 res = g_malloc0 (mono_stringbuilder_capacity (sb) + 1);
287 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
289 g_error_free (error);
290 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
293 memcpy (res, tmp, sb->length + 1);
299 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
304 return mono_string_chars (sb->str);
308 mono_string_to_ansibstr (MonoString *string_obj)
310 g_error ("implement me");
315 mono_string_to_bstr (MonoString *string_obj)
317 g_error ("implement me");
322 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
327 g_assert (dst != NULL);
330 memset (dst, 0, size);
335 s = mono_string_to_utf8 (src);
336 len = MIN (size, strlen (s));
337 memcpy (dst, s, len);
340 *((char *)dst + size - 1) = 0;
344 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
348 g_assert (dst != NULL);
352 memset (dst, 0, size);
356 len = MIN (size, (mono_string_length (src) * 2));
357 memcpy (dst, mono_string_chars (src), len);
359 *((char *)dst + size - 1) = 0;
360 *((char *)dst + size - 2) = 0;
364 mono_mb_free (MonoMethodBuilder *mb)
366 g_list_free (mb->locals_list);
371 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
373 MonoMethodBuilder *mb;
376 g_assert (klass != NULL);
377 g_assert (name != NULL);
379 mb = g_new0 (MonoMethodBuilder, 1);
381 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
384 m->name = g_strdup (name);
386 m->inline_count = -1;
387 m->wrapper_type = type;
390 mb->code = g_malloc (mb->code_size);
396 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
398 int res = mb->locals;
400 g_assert (mb != NULL);
401 g_assert (type != NULL);
403 mb->locals_list = g_list_append (mb->locals_list, type);
410 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
412 MonoMethodHeader *header;
416 g_assert (mb != NULL);
418 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
419 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
424 header->max_stack = max_stack;
426 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
427 header->locals [i] = (MonoType *)l->data;
430 mb->method->signature = signature;
431 header->code = mb->code;
432 header->code_size = mb->pos;
433 header->num_locals = mb->locals;
435 #ifdef DEBUG_RUNTIME_CODE
436 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
437 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
444 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
446 MonoMethodWrapper *mw;
448 g_assert (mb != NULL);
450 mw = (MonoMethodWrapper *)mb->method;
452 mw->data = g_list_append (mw->data, data);
454 return g_list_length (mw->data);
458 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
460 mb->code [pos] = value & 0xff;
461 mb->code [pos + 1] = (value >> 8) & 0xff;
462 mb->code [pos + 2] = (value >> 16) & 0xff;
463 mb->code [pos + 3] = (value >> 24) & 0xff;
467 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
469 *((gint8 *)(&mb->code [pos])) = value;
473 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
475 if (mb->pos >= mb->code_size) {
477 mb->code = g_realloc (mb->code, mb->code_size);
480 mb->code [mb->pos++] = op;
484 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
486 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
487 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
490 mono_mb_emit_icon (mb, offset);
491 mono_mb_emit_byte (mb, CEE_ADD);
496 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
499 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
500 mono_mb_emit_byte (mb, CEE_LDIND_I);
501 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
502 mono_mb_emit_byte (mb, CEE_ADD);
503 mono_mb_emit_byte (mb, CEE_LDIND_I);
504 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
505 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
506 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
507 mono_mb_emit_byte (mb, branch_code);
509 mono_mb_emit_i4 (mb, 0);
514 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
516 if ((mb->pos + 4) >= mb->code_size) {
518 mb->code = g_realloc (mb->code, mb->code_size);
521 mono_mb_patch_addr (mb, mb->pos, data);
526 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
528 if ((mb->pos + 2) >= mb->code_size) {
530 mb->code = g_realloc (mb->code, mb->code_size);
533 mb->code [mb->pos] = data & 0xff;
534 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
539 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
541 mono_mb_emit_byte (mb, CEE_LDSTR);
542 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
547 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
550 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
551 } else if (argnum < 256) {
552 mono_mb_emit_byte (mb, CEE_LDARG_S);
553 mono_mb_emit_byte (mb, argnum);
555 mono_mb_emit_byte (mb, CEE_PREFIX1);
556 mono_mb_emit_byte (mb, CEE_LDARG);
557 mono_mb_emit_i2 (mb, argnum);
562 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
565 mono_mb_emit_byte (mb, CEE_LDARGA_S);
566 mono_mb_emit_byte (mb, argnum);
568 mono_mb_emit_byte (mb, CEE_PREFIX1);
569 mono_mb_emit_byte (mb, CEE_LDARGA);
570 mono_mb_emit_i2 (mb, argnum);
575 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
578 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
579 mono_mb_emit_byte (mb, locnum);
581 mono_mb_emit_byte (mb, CEE_PREFIX1);
582 mono_mb_emit_byte (mb, CEE_LDLOCA);
583 mono_mb_emit_i2 (mb, locnum);
588 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
591 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
592 } else if (num < 256) {
593 mono_mb_emit_byte (mb, CEE_LDLOC_S);
594 mono_mb_emit_byte (mb, num);
596 mono_mb_emit_byte (mb, CEE_PREFIX1);
597 mono_mb_emit_byte (mb, CEE_LDLOC);
598 mono_mb_emit_i2 (mb, num);
603 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
606 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
607 } else if (num < 256) {
608 mono_mb_emit_byte (mb, CEE_STLOC_S);
609 mono_mb_emit_byte (mb, num);
611 mono_mb_emit_byte (mb, CEE_PREFIX1);
612 mono_mb_emit_byte (mb, CEE_STLOC);
613 mono_mb_emit_i2 (mb, num);
618 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
620 if (value >= -1 && value < 8) {
621 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
622 } else if (value >= -128 && value <= 127) {
623 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
624 mono_mb_emit_byte (mb, value);
626 mono_mb_emit_byte (mb, CEE_LDC_I4);
627 mono_mb_emit_i4 (mb, value);
632 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
635 mono_mb_emit_byte (mb, op);
637 mono_mb_emit_i4 (mb, 0);
642 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
644 mono_mb_emit_byte (mb, CEE_CALLI);
645 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
649 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
651 mono_mb_emit_byte (mb, CEE_PREFIX1);
652 mono_mb_emit_byte (mb, CEE_LDFTN);
653 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
654 mono_mb_emit_calli (mb, opt_sig ? opt_sig : method->signature);
658 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
660 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
661 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
663 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
664 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
665 mono_mb_emit_calli (mb, sig);
666 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
667 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
671 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
673 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
674 mono_mb_emit_byte (mb, CEE_MONO_ICALL);
675 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
679 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
681 /* fixme: we need a better way to throw exception,
682 * supporting several exception types and messages */
683 MonoMethod *ctor = NULL;
685 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
687 mono_class_init (mme);
688 for (i = 0; i < mme->method.count; ++i) {
689 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
690 ctor = mme->methods [i];
695 mono_mb_emit_byte (mb, CEE_NEWOBJ);
696 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
698 mono_mb_emit_byte (mb, CEE_DUP);
699 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
700 mono_mb_emit_ldstr (mb, (char*)msg);
701 mono_mb_emit_byte (mb, CEE_STIND_I);
703 mono_mb_emit_byte (mb, CEE_THROW);
707 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
709 mono_mb_emit_ldloc (mb, local);
710 mono_mb_emit_icon (mb, incr);
711 mono_mb_emit_byte (mb, CEE_ADD);
712 mono_mb_emit_stloc (mb, local);
716 emit_ptr_to_str_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
717 int usize, int msize, MonoMarshalSpec *mspec)
720 case MONO_MARSHAL_CONV_BOOL_I4:
721 mono_mb_emit_byte (mb, CEE_LDLOC_1);
722 mono_mb_emit_byte (mb, CEE_LDLOC_0);
723 mono_mb_emit_byte (mb, CEE_LDIND_I4);
724 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
725 mono_mb_emit_byte (mb, 3);
726 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
727 mono_mb_emit_byte (mb, CEE_BR_S);
728 mono_mb_emit_byte (mb, 1);
729 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
730 mono_mb_emit_byte (mb, CEE_STIND_I1);
732 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
733 mono_mb_emit_byte (mb, CEE_LDLOC_1);
734 mono_mb_emit_byte (mb, CEE_LDLOC_0);
735 mono_mb_emit_byte (mb, CEE_LDIND_I2);
736 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
737 mono_mb_emit_byte (mb, 3);
738 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
739 mono_mb_emit_byte (mb, CEE_BR_S);
740 mono_mb_emit_byte (mb, 1);
741 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
742 mono_mb_emit_byte (mb, CEE_STIND_I1);
744 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
745 MonoClass *eclass = NULL;
748 if (type->type == MONO_TYPE_SZARRAY) {
749 eclass = type->data.klass;
751 g_assert_not_reached ();
754 if (eclass->valuetype)
755 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
757 esize = sizeof (gpointer);
759 /* create a new array */
760 mono_mb_emit_byte (mb, CEE_LDLOC_1);
761 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
762 mono_mb_emit_byte (mb, CEE_NEWARR);
763 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
764 mono_mb_emit_byte (mb, CEE_STIND_I);
766 /* copy the elements */
767 mono_mb_emit_byte (mb, CEE_LDLOC_1);
768 mono_mb_emit_byte (mb, CEE_LDIND_I);
769 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
770 mono_mb_emit_byte (mb, CEE_ADD);
771 mono_mb_emit_byte (mb, CEE_LDLOC_0);
772 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
773 mono_mb_emit_byte (mb, CEE_PREFIX1);
774 mono_mb_emit_byte (mb, CEE_CPBLK);
778 case MONO_MARSHAL_CONV_STR_BYVALSTR:
779 mono_mb_emit_byte (mb, CEE_LDLOC_1);
780 mono_mb_emit_byte (mb, CEE_LDLOC_0);
781 mono_mb_emit_icall (mb, mono_string_new_wrapper);
782 mono_mb_emit_byte (mb, CEE_STIND_I);
784 case MONO_MARSHAL_CONV_STR_LPTSTR:
785 case MONO_MARSHAL_CONV_STR_LPSTR:
786 mono_mb_emit_byte (mb, CEE_LDLOC_1);
787 mono_mb_emit_byte (mb, CEE_LDLOC_0);
788 mono_mb_emit_byte (mb, CEE_LDIND_I);
789 mono_mb_emit_icall (mb, mono_string_new_wrapper);
790 mono_mb_emit_byte (mb, CEE_STIND_I);
792 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
793 MonoClass *klass = mono_class_from_mono_type (type);
794 int src_var, dst_var;
796 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
797 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
799 /* *dst = new object */
800 mono_mb_emit_byte (mb, CEE_LDLOC_1);
801 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
802 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
803 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
804 mono_mb_emit_byte (mb, CEE_STIND_I);
806 /* save the old src pointer */
807 mono_mb_emit_byte (mb, CEE_LDLOC_0);
808 mono_mb_emit_stloc (mb, src_var);
809 /* save the old dst pointer */
810 mono_mb_emit_byte (mb, CEE_LDLOC_1);
811 mono_mb_emit_stloc (mb, dst_var);
813 /* dst = pointer to newly created object data */
814 mono_mb_emit_byte (mb, CEE_LDLOC_1);
815 mono_mb_emit_byte (mb, CEE_LDIND_I);
816 mono_mb_emit_icon (mb, sizeof (MonoObject));
817 mono_mb_emit_byte (mb, CEE_ADD);
818 mono_mb_emit_byte (mb, CEE_STLOC_1);
820 emit_struct_conv (mb, klass, TRUE);
822 /* restore the old src pointer */
823 mono_mb_emit_ldloc (mb, src_var);
824 mono_mb_emit_byte (mb, CEE_STLOC_0);
825 /* restore the old dst pointer */
826 mono_mb_emit_ldloc (mb, dst_var);
827 mono_mb_emit_byte (mb, CEE_STLOC_1);
830 case MONO_MARSHAL_CONV_DEL_FTN: {
831 /* fixme: we never convert functions back to delegates, dont
832 // know if thats the correct behaviour
836 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
837 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
839 case MONO_MARSHAL_CONV_STR_LPWSTR:
840 case MONO_MARSHAL_CONV_STR_BSTR:
841 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
842 case MONO_MARSHAL_CONV_STR_TBSTR:
843 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
844 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
846 g_warning ("marshaling conversion %d not implemented", conv);
847 g_assert_not_reached ();
852 conv_to_icall (MonoMarshalConv conv)
855 case MONO_MARSHAL_CONV_STR_LPWSTR:
856 return mono_string_to_utf16;
857 case MONO_MARSHAL_CONV_LPWSTR_STR:
858 return mono_string_from_utf16;
859 case MONO_MARSHAL_CONV_LPSTR_STR:
860 return mono_string_new_wrapper;
861 case MONO_MARSHAL_CONV_STR_LPTSTR:
862 case MONO_MARSHAL_CONV_STR_LPSTR:
863 return mono_string_to_utf8;
864 case MONO_MARSHAL_CONV_STR_BSTR:
865 return mono_string_to_bstr;
866 case MONO_MARSHAL_CONV_STR_TBSTR:
867 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
868 return mono_string_to_ansibstr;
869 case MONO_MARSHAL_CONV_SB_LPSTR:
870 case MONO_MARSHAL_CONV_SB_LPTSTR:
871 return mono_string_builder_to_utf8;
872 case MONO_MARSHAL_CONV_SB_LPWSTR:
873 return mono_string_builder_to_utf16;
874 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
875 return mono_array_to_savearray;
876 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
877 return mono_array_to_lparray;
878 case MONO_MARSHAL_CONV_DEL_FTN:
879 return mono_delegate_to_ftnptr;
880 case MONO_MARSHAL_CONV_FTN_DEL:
881 return mono_ftnptr_to_delegate;
882 case MONO_MARSHAL_CONV_LPSTR_SB:
883 case MONO_MARSHAL_CONV_LPTSTR_SB:
884 return mono_string_utf8_to_builder;
885 case MONO_MARSHAL_CONV_LPWSTR_SB:
886 return mono_string_utf16_to_builder;
887 case MONO_MARSHAL_FREE_ARRAY:
888 return mono_marshal_free_array;
889 case MONO_MARSHAL_CONV_STR_BYVALSTR:
890 return mono_string_to_byvalstr;
891 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
892 return mono_string_to_byvalwstr;
894 g_assert_not_reached ();
901 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
902 MonoMarshalSpec *mspec)
907 case MONO_MARSHAL_CONV_BOOL_I4:
908 mono_mb_emit_byte (mb, CEE_LDLOC_1);
909 mono_mb_emit_byte (mb, CEE_LDLOC_0);
910 mono_mb_emit_byte (mb, CEE_LDIND_U1);
911 mono_mb_emit_byte (mb, CEE_STIND_I4);
913 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
914 mono_mb_emit_byte (mb, CEE_LDLOC_1);
915 mono_mb_emit_byte (mb, CEE_LDLOC_0);
916 mono_mb_emit_byte (mb, CEE_LDIND_U1);
917 mono_mb_emit_byte (mb, CEE_NEG);
918 mono_mb_emit_byte (mb, CEE_STIND_I2);
920 case MONO_MARSHAL_CONV_STR_LPWSTR:
921 case MONO_MARSHAL_CONV_STR_LPSTR:
922 case MONO_MARSHAL_CONV_STR_LPTSTR:
923 case MONO_MARSHAL_CONV_STR_BSTR:
924 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
925 case MONO_MARSHAL_CONV_STR_TBSTR: {
928 /* free space if free == true */
929 mono_mb_emit_byte (mb, CEE_LDLOC_2);
930 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
932 mono_mb_emit_byte (mb, 0);
933 mono_mb_emit_byte (mb, CEE_LDLOC_1);
934 mono_mb_emit_byte (mb, CEE_LDIND_I);
935 mono_mb_emit_icall (mb, g_free);
936 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
938 mono_mb_emit_byte (mb, CEE_LDLOC_1);
939 mono_mb_emit_byte (mb, CEE_LDLOC_0);
940 mono_mb_emit_byte (mb, CEE_LDIND_I);
941 mono_mb_emit_icall (mb, conv_to_icall (conv));
942 mono_mb_emit_byte (mb, CEE_STIND_I);
945 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
946 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
947 case MONO_MARSHAL_CONV_DEL_FTN:
948 mono_mb_emit_byte (mb, CEE_LDLOC_1);
949 mono_mb_emit_byte (mb, CEE_LDLOC_0);
950 mono_mb_emit_byte (mb, CEE_LDIND_I);
951 mono_mb_emit_icall (mb, conv_to_icall (conv));
952 mono_mb_emit_byte (mb, CEE_STIND_I);
954 case MONO_MARSHAL_CONV_STR_BYVALSTR:
955 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
959 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
960 mono_mb_emit_byte (mb, CEE_LDLOC_0);
961 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
962 mono_mb_emit_icon (mb, usize);
963 mono_mb_emit_icall (mb, conv_to_icall (conv));
966 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
967 MonoClass *eclass = NULL;
970 if (type->type == MONO_TYPE_SZARRAY) {
971 eclass = type->data.klass;
973 g_assert_not_reached ();
976 if (eclass->valuetype)
977 esize = mono_class_native_size (eclass, NULL);
979 esize = sizeof (gpointer);
984 mono_mb_emit_byte (mb, CEE_LDLOC_0);
985 mono_mb_emit_byte (mb, CEE_LDIND_I);
986 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
988 mono_mb_emit_byte (mb, 0);
990 mono_mb_emit_byte (mb, CEE_LDLOC_1);
991 mono_mb_emit_byte (mb, CEE_LDLOC_0);
992 mono_mb_emit_byte (mb, CEE_LDIND_I);
993 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
994 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
995 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
996 mono_mb_emit_byte (mb, CEE_ADD);
997 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
998 mono_mb_emit_byte (mb, CEE_PREFIX1);
999 mono_mb_emit_byte (mb, CEE_CPBLK);
1000 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1003 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1004 int src_var, dst_var;
1006 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1007 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1009 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1010 mono_mb_emit_byte (mb, CEE_LDIND_I);
1011 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1013 mono_mb_emit_byte (mb, 0);
1015 /* save the old src pointer */
1016 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1017 mono_mb_emit_stloc (mb, src_var);
1018 /* save the old dst pointer */
1019 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1020 mono_mb_emit_stloc (mb, dst_var);
1022 /* src = pointer to object data */
1023 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1024 mono_mb_emit_byte (mb, CEE_LDIND_I);
1025 mono_mb_emit_icon (mb, sizeof (MonoObject));
1026 mono_mb_emit_byte (mb, CEE_ADD);
1027 mono_mb_emit_byte (mb, CEE_STLOC_0);
1029 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1031 /* restore the old src pointer */
1032 mono_mb_emit_ldloc (mb, src_var);
1033 mono_mb_emit_byte (mb, CEE_STLOC_0);
1034 /* restore the old dst pointer */
1035 mono_mb_emit_ldloc (mb, dst_var);
1036 mono_mb_emit_byte (mb, CEE_STLOC_1);
1038 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1042 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1043 MonoException *exc = mono_get_exception_not_implemented (msg);
1046 mono_raise_exception (exc);
1052 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1054 MonoMarshalType *info;
1058 emit_struct_conv(mb, klass->parent, to_object);
1060 info = mono_marshal_load_type_info (klass);
1062 if (info->native_size == 0)
1065 if (klass->blittable) {
1066 int msize = mono_class_value_size (klass, NULL);
1067 g_assert (msize == info->native_size);
1068 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1069 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1070 mono_mb_emit_icon (mb, msize);
1071 mono_mb_emit_byte (mb, CEE_PREFIX1);
1072 mono_mb_emit_byte (mb, CEE_CPBLK);
1074 mono_mb_emit_add_to_local (mb, 0, msize);
1075 mono_mb_emit_add_to_local (mb, 1, msize);
1079 for (i = 0; i < info->num_fields; i++) {
1080 MonoMarshalNative ntype;
1081 MonoMarshalConv conv;
1082 MonoType *ftype = info->fields [i].field->type;
1085 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1087 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1090 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1093 msize = klass->instance_size - info->fields [i].field->offset;
1094 usize = info->native_size - info->fields [i].offset;
1096 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1097 usize = info->fields [i + 1].offset - info->fields [i].offset;
1099 if ((msize < 0) || (usize < 0))
1100 /* This happens with GC aware auto layout */
1101 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
1103 g_assert ((msize >= 0) && (usize >= 0));
1106 case MONO_MARSHAL_CONV_NONE: {
1109 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1110 ftype->type == MONO_TYPE_U) {
1111 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1112 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1113 mono_mb_emit_byte (mb, CEE_LDIND_I);
1114 mono_mb_emit_byte (mb, CEE_STIND_I);
1123 #if SIZEOF_VOID_P == 4
1126 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1127 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1128 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1129 mono_mb_emit_byte (mb, CEE_STIND_I4);
1133 case MONO_TYPE_BOOLEAN:
1134 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1135 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1136 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1137 mono_mb_emit_byte (mb, CEE_STIND_I1);
1141 case MONO_TYPE_CHAR:
1142 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1143 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1144 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1145 mono_mb_emit_byte (mb, CEE_STIND_I2);
1149 #if SIZEOF_VOID_P == 8
1152 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1153 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1154 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1155 mono_mb_emit_byte (mb, CEE_STIND_I8);
1158 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1159 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1160 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1161 mono_mb_emit_byte (mb, CEE_STIND_R4);
1164 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1165 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1166 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1167 mono_mb_emit_byte (mb, CEE_STIND_R8);
1169 case MONO_TYPE_VALUETYPE:
1170 if (ftype->data.klass->enumtype) {
1171 t = ftype->data.klass->enum_basetype->type;
1174 emit_struct_conv (mb, ftype->data.klass, to_object);
1177 g_warning ("marshaling type %02x not implemented", ftype->type);
1178 g_assert_not_reached ();
1184 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1186 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1190 mono_mb_emit_add_to_local (mb, 0, usize);
1191 mono_mb_emit_add_to_local (mb, 1, msize);
1193 mono_mb_emit_add_to_local (mb, 0, msize);
1194 mono_mb_emit_add_to_local (mb, 1, usize);
1200 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1202 static MonoMethodSignature *state_check_sig = NULL;
1205 if (!state_check_sig) {
1206 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1207 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1208 state_check_sig->pinvoke = 0;
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, (gpointer) mono_thread_interruption_request_flag ()));
1214 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1215 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1217 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1219 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1222 static MonoAsyncResult *
1223 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1225 MonoMethodMessage *msg;
1226 MonoDelegate *async_callback;
1230 MonoMethod *method = NULL;
1233 g_assert (delegate);
1235 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1237 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1238 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1240 /* If the target is a proxy, make a direct call. Is proxy's work
1241 // to make the call asynchronous.
1243 MonoAsyncResult *ares;
1245 MonoArray *out_args;
1247 method = delegate->method_info->method;
1249 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1250 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1251 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1252 ares->async_delegate = (MonoObject *)delegate;
1253 ares->async_callback = (MonoObject *)async_callback;
1254 msg->async_result = ares;
1255 msg->call_type = CallType_BeginInvoke;
1257 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1262 klass = delegate->object.vtable->klass;
1264 method = mono_get_delegate_invoke (klass);
1265 for (i = 0; i < klass->method.count; ++i) {
1266 if (klass->methods [i]->name[0] == 'B' &&
1267 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1268 method = klass->methods [i];
1273 g_assert (method != NULL);
1275 im = mono_get_delegate_invoke (method->klass);
1276 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1278 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1282 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1284 int i, params_var, tmp_var;
1286 /* allocate local (pointer) *params[] */
1287 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1288 /* allocate local (pointer) tmp */
1289 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1291 /* alloate space on stack to store an array of pointers to the arguments */
1292 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1293 mono_mb_emit_byte (mb, CEE_PREFIX1);
1294 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1295 mono_mb_emit_stloc (mb, params_var);
1298 mono_mb_emit_ldloc (mb, params_var);
1299 mono_mb_emit_stloc (mb, tmp_var);
1301 if (save_this && sig->hasthis) {
1302 mono_mb_emit_ldloc (mb, tmp_var);
1303 mono_mb_emit_ldarg_addr (mb, 0);
1304 mono_mb_emit_byte (mb, CEE_STIND_I);
1305 /* tmp = tmp + sizeof (gpointer) */
1306 if (sig->param_count)
1307 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1311 for (i = 0; i < sig->param_count; i++) {
1312 mono_mb_emit_ldloc (mb, tmp_var);
1313 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1314 mono_mb_emit_byte (mb, CEE_STIND_I);
1315 /* tmp = tmp + sizeof (gpointer) */
1316 if (i < (sig->param_count - 1))
1317 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1324 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1328 GString *res = g_string_new ("");
1331 g_string_append (res, prefix);
1332 g_string_append_c (res, '_');
1335 mono_type_get_desc (res, sig->ret, FALSE);
1337 for (i = 0; i < sig->param_count; ++i) {
1338 g_string_append_c (res, '_');
1339 mono_type_get_desc (res, sig->params [i], FALSE);
1342 g_string_free (res, FALSE);
1347 * mono_marshal_get_string_encoding:
1349 * Return the string encoding which should be used for a given parameter.
1351 static MonoMarshalNative
1352 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1354 /* First try the parameter marshal info */
1356 if (spec->native == MONO_NATIVE_LPARRAY) {
1357 if (spec->data.array_data.elem_type != 0)
1358 return spec->data.array_data.elem_type;
1361 return spec->native;
1365 return MONO_NATIVE_LPSTR;
1367 /* Then try the method level marshal info */
1368 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1369 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1370 return MONO_NATIVE_LPSTR;
1371 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1372 return MONO_NATIVE_LPWSTR;
1373 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1374 return MONO_NATIVE_LPTSTR;
1376 return MONO_NATIVE_LPSTR;
1380 static MonoMarshalNative
1381 mono_marshal_get_stringbuilder_to_ptr_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1383 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1386 case MONO_NATIVE_LPWSTR:
1387 return MONO_MARSHAL_CONV_SB_LPWSTR;
1389 case MONO_NATIVE_LPSTR:
1390 return MONO_MARSHAL_CONV_SB_LPSTR;
1392 case MONO_NATIVE_LPTSTR:
1393 return MONO_MARSHAL_CONV_SB_LPTSTR;
1400 static MonoMarshalNative
1401 mono_marshal_get_ptr_to_stringbuilder_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
1403 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1408 case MONO_NATIVE_LPWSTR:
1410 * mono_string_builder_to_utf16 does not allocate a
1411 * new buffer, so no need to free it.
1414 return MONO_MARSHAL_CONV_LPWSTR_SB;
1415 case MONO_NATIVE_LPSTR:
1416 return MONO_MARSHAL_CONV_LPSTR_SB;
1418 case MONO_NATIVE_LPTSTR:
1419 return MONO_MARSHAL_CONV_LPTSTR_SB;
1426 static inline MonoMethod*
1427 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1431 EnterCriticalSection (&marshal_mutex);
1432 res = g_hash_table_lookup (cache, key);
1433 LeaveCriticalSection (&marshal_mutex);
1437 /* Create the method from the builder and place it in the cache */
1438 static inline MonoMethod*
1439 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1440 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1445 EnterCriticalSection (&marshal_mutex);
1446 res = g_hash_table_lookup (cache, key);
1448 /* This does not acquire any locks */
1449 res = mono_mb_create_method (mb, sig, max_stack);
1450 g_hash_table_insert (cache, key, res);
1451 mono_g_hash_table_insert (wrapper_hash, res, key);
1454 /* Somebody created it before us */
1456 LeaveCriticalSection (&marshal_mutex);
1462 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1466 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1469 EnterCriticalSection (&marshal_mutex);
1470 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1471 LeaveCriticalSection (&marshal_mutex);
1473 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1474 /* See mono_marshal_get_remoting_invoke_with_check */
1475 return (MonoMethod*)((char*)res - 1);
1481 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1483 MonoMethodSignature *sig;
1484 static MonoMethodSignature *csig = NULL;
1485 MonoMethodBuilder *mb;
1491 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1492 !strcmp (method->name, "BeginInvoke"));
1494 sig = method->signature;
1496 cache = method->klass->image->delegate_begin_invoke_cache;
1497 if ((res = mono_marshal_find_in_cache (cache, sig)))
1500 g_assert (sig->hasthis);
1503 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1505 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1506 csig->ret = &mono_defaults.object_class->byval_arg;
1507 csig->params [0] = &mono_defaults.object_class->byval_arg;
1508 csig->params [1] = &mono_defaults.int_class->byval_arg;
1511 name = mono_signature_to_name (sig, "begin_invoke");
1512 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1515 mb->method->save_lmf = 1;
1517 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1519 mono_mb_emit_ldarg (mb, 0);
1520 mono_mb_emit_ldloc (mb, params_var);
1521 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1522 emit_thread_interrupt_checkpoint (mb);
1523 mono_mb_emit_byte (mb, CEE_RET);
1525 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1531 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1533 MonoDomain *domain = mono_domain_get ();
1534 MonoAsyncResult *ares;
1535 MonoMethod *method = NULL;
1536 MonoMethodSignature *sig;
1537 MonoMethodMessage *msg;
1538 MonoObject *res, *exc;
1539 MonoArray *out_args;
1543 g_assert (delegate);
1545 if (!delegate->method_info || !delegate->method_info->method)
1546 g_assert_not_reached ();
1548 klass = delegate->object.vtable->klass;
1550 for (i = 0; i < klass->method.count; ++i) {
1551 if (klass->methods [i]->name[0] == 'E' &&
1552 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1553 method = klass->methods [i];
1558 g_assert (method != NULL);
1560 sig = method->signature;
1562 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1564 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1567 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1568 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1569 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1570 mono_message_init (domain, msg, delegate->method_info, NULL);
1571 msg->call_type = CallType_EndInvoke;
1572 msg->async_result = ares;
1573 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1576 res = mono_thread_pool_finish (ares, &out_args, &exc);
1579 if (((MonoException*)exc)->stack_trace) {
1580 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1582 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1584 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1587 mono_raise_exception ((MonoException*)exc);
1590 mono_method_return_message_restore (method, params, out_args);
1595 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1597 if (return_type->byref)
1598 return_type = &mono_defaults.int_class->byval_arg;
1599 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1600 return_type = return_type->data.klass->enum_basetype;
1602 switch (return_type->type) {
1603 case MONO_TYPE_VOID:
1604 g_assert_not_reached ();
1607 case MONO_TYPE_STRING:
1608 case MONO_TYPE_CLASS:
1609 case MONO_TYPE_OBJECT:
1610 case MONO_TYPE_ARRAY:
1611 case MONO_TYPE_SZARRAY:
1615 case MONO_TYPE_BOOLEAN:
1616 mono_mb_emit_byte (mb, CEE_UNBOX);
1617 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1618 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1621 mono_mb_emit_byte (mb, CEE_UNBOX);
1622 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1623 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1626 case MONO_TYPE_CHAR:
1627 mono_mb_emit_byte (mb, CEE_UNBOX);
1628 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1629 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1632 mono_mb_emit_byte (mb, CEE_UNBOX);
1633 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1634 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1638 mono_mb_emit_byte (mb, CEE_UNBOX);
1639 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1640 mono_mb_emit_byte (mb, CEE_LDIND_I);
1643 mono_mb_emit_byte (mb, CEE_UNBOX);
1644 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1645 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1648 mono_mb_emit_byte (mb, CEE_UNBOX);
1649 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1650 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1654 mono_mb_emit_byte (mb, CEE_UNBOX);
1655 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1656 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1659 mono_mb_emit_byte (mb, CEE_UNBOX);
1660 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1661 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1664 mono_mb_emit_byte (mb, CEE_UNBOX);
1665 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1666 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1668 case MONO_TYPE_VALUETYPE: {
1670 mono_mb_emit_byte (mb, CEE_UNBOX);
1671 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1672 mono_mb_emit_i4 (mb, class);
1673 mono_mb_emit_byte (mb, CEE_LDOBJ);
1674 mono_mb_emit_i4 (mb, class);
1678 g_warning ("type 0x%x not handled", return_type->type);
1679 g_assert_not_reached ();
1682 mono_mb_emit_byte (mb, CEE_RET);
1686 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1688 MonoMethodSignature *sig;
1689 static MonoMethodSignature *csig = NULL;
1690 MonoMethodBuilder *mb;
1696 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1697 !strcmp (method->name, "EndInvoke"));
1699 sig = method->signature;
1701 cache = method->klass->image->delegate_end_invoke_cache;
1702 if ((res = mono_marshal_find_in_cache (cache, sig)))
1705 g_assert (sig->hasthis);
1708 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1710 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1711 csig->ret = &mono_defaults.object_class->byval_arg;
1712 csig->params [0] = &mono_defaults.object_class->byval_arg;
1713 csig->params [1] = &mono_defaults.int_class->byval_arg;
1716 name = mono_signature_to_name (sig, "end_invoke");
1717 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1720 mb->method->save_lmf = 1;
1722 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1724 mono_mb_emit_ldarg (mb, 0);
1725 mono_mb_emit_ldloc (mb, params_var);
1726 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1727 emit_thread_interrupt_checkpoint (mb);
1729 if (sig->ret->type == MONO_TYPE_VOID) {
1730 mono_mb_emit_byte (mb, CEE_POP);
1731 mono_mb_emit_byte (mb, CEE_RET);
1733 mono_mb_emit_restore_result (mb, sig->ret);
1735 res = mono_mb_create_and_cache (cache, sig,
1736 mb, sig, sig->param_count + 16);
1743 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1745 MonoMethodMessage *msg;
1746 MonoTransparentProxy *this;
1747 MonoObject *res, *exc;
1748 MonoArray *out_args;
1750 this = *((MonoTransparentProxy **)params [0]);
1753 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1755 /* skip the this pointer */
1758 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1761 MonoMethodSignature *sig = method->signature;
1762 int count = sig->param_count;
1763 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1765 for (i=0; i<count; i++) {
1766 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1767 if (class->valuetype) {
1768 if (sig->params [i]->byref)
1769 mparams[i] = *((gpointer *)params [i]);
1771 mparams[i] = params [i];
1773 mparams[i] = *((gpointer**)params [i]);
1777 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
1780 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1782 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1785 mono_raise_exception ((MonoException *)exc);
1787 mono_method_return_message_restore (method, params, out_args);
1793 mono_marshal_get_remoting_invoke (MonoMethod *method)
1795 MonoMethodSignature *sig;
1796 static MonoMethodSignature *csig = NULL;
1797 MonoMethodBuilder *mb;
1804 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1807 sig = method->signature;
1809 /* we cant remote methods without this pointer */
1813 cache = method->klass->image->remoting_invoke_cache;
1814 if ((res = mono_marshal_find_in_cache (cache, method)))
1818 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1819 csig->params [0] = &mono_defaults.int_class->byval_arg;
1820 csig->params [1] = &mono_defaults.int_class->byval_arg;
1821 csig->ret = &mono_defaults.object_class->byval_arg;
1825 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1826 mb->method->save_lmf = 1;
1828 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1830 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1831 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1832 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1833 mono_mb_emit_ldloc (mb, params_var);
1834 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1835 emit_thread_interrupt_checkpoint (mb);
1837 if (sig->ret->type == MONO_TYPE_VOID) {
1838 mono_mb_emit_byte (mb, CEE_POP);
1839 mono_mb_emit_byte (mb, CEE_RET);
1841 mono_mb_emit_restore_result (mb, sig->ret);
1844 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1851 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1853 MonoMethodSignature *sig;
1854 MonoMethodBuilder *mb;
1855 MonoMethod *res, *native;
1861 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1864 sig = method->signature;
1866 /* we cant remote methods without this pointer */
1867 g_assert (sig->hasthis);
1869 cache = method->klass->image->remoting_invoke_cache;
1870 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1873 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1875 mono_mb_emit_ldarg (mb, 0);
1876 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1878 native = mono_marshal_get_remoting_invoke (method);
1880 for (i = 0; i <= sig->param_count; i++)
1881 mono_mb_emit_ldarg (mb, i);
1883 mono_mb_emit_managed_call (mb, native, native->signature);
1884 mono_mb_emit_byte (mb, CEE_RET);
1886 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1888 for (i = 0; i <= sig->param_count; i++)
1889 mono_mb_emit_ldarg (mb, i);
1891 mono_mb_emit_managed_call (mb, method, method->signature);
1892 mono_mb_emit_byte (mb, CEE_RET);
1894 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1895 mb, sig, sig->param_count + 16);
1902 * the returned method invokes all methods in a multicast delegate
1905 mono_marshal_get_delegate_invoke (MonoMethod *method)
1907 MonoMethodSignature *sig, *static_sig;
1909 MonoMethodBuilder *mb;
1915 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1916 !strcmp (method->name, "Invoke"));
1918 sig = method->signature;
1920 cache = method->klass->image->delegate_invoke_cache;
1921 if ((res = mono_marshal_find_in_cache (cache, sig)))
1924 static_sig = mono_metadata_signature_dup (sig);
1925 static_sig->hasthis = 0;
1927 name = mono_signature_to_name (sig, "invoke");
1928 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
1931 /* allocate local 0 (object) */
1932 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1934 g_assert (sig->hasthis);
1938 * prev.Invoke( args .. );
1939 * return this.<target>( args .. );
1942 /* this wrapper can be used in unmanaged-managed transitions */
1943 emit_thread_interrupt_checkpoint (mb);
1945 /* get this->prev */
1946 mono_mb_emit_ldarg (mb, 0);
1947 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
1948 mono_mb_emit_byte (mb, CEE_LDIND_I );
1949 mono_mb_emit_stloc (mb, 0);
1951 /* if prev != null */
1952 mono_mb_emit_ldloc (mb, 0);
1953 mono_mb_emit_byte (mb, CEE_BRFALSE);
1956 mono_mb_emit_i4 (mb, 0);
1959 mono_mb_emit_ldloc (mb, 0);
1960 for (i = 0; i < sig->param_count; i++)
1961 mono_mb_emit_ldarg (mb, i + 1);
1962 mono_mb_emit_managed_call (mb, method, method->signature);
1963 if (sig->ret->type != MONO_TYPE_VOID)
1964 mono_mb_emit_byte (mb, CEE_POP);
1966 /* continued or prev == null */
1967 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1969 /* get this->target */
1970 mono_mb_emit_ldarg (mb, 0);
1971 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
1972 mono_mb_emit_byte (mb, CEE_LDIND_I );
1973 mono_mb_emit_stloc (mb, 0);
1975 /* if target != null */
1976 mono_mb_emit_ldloc (mb, 0);
1977 mono_mb_emit_byte (mb, CEE_BRFALSE);
1979 mono_mb_emit_i4 (mb, 0);
1981 /* then call this->method_ptr nonstatic */
1982 mono_mb_emit_ldloc (mb, 0);
1983 for (i = 0; i < sig->param_count; ++i)
1984 mono_mb_emit_ldarg (mb, i + 1);
1985 mono_mb_emit_ldarg (mb, 0);
1986 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
1987 mono_mb_emit_byte (mb, CEE_LDIND_I );
1988 mono_mb_emit_byte (mb, CEE_CALLI);
1989 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
1991 mono_mb_emit_byte (mb, CEE_BR);
1993 mono_mb_emit_i4 (mb, 0);
1995 /* else [target == null] call this->method_ptr static */
1996 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
1998 for (i = 0; i < sig->param_count; ++i)
1999 mono_mb_emit_ldarg (mb, i + 1);
2000 mono_mb_emit_ldarg (mb, 0);
2001 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
2002 mono_mb_emit_byte (mb, CEE_LDIND_I );
2003 mono_mb_emit_byte (mb, CEE_CALLI);
2004 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
2007 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2008 mono_mb_emit_byte (mb, CEE_RET);
2010 res = mono_mb_create_and_cache (cache, sig,
2011 mb, sig, sig->param_count + 16);
2018 * signature_dup_add_this:
2020 * Make a copy of @sig, adding an explicit this argument.
2022 static MonoMethodSignature*
2023 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
2025 MonoMethodSignature *res;
2028 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
2029 memcpy (res, sig, sizeof (MonoMethodSignature));
2030 res->param_count = sig->param_count + 1;
2031 res->hasthis = FALSE;
2032 for (i = sig->param_count - 1; i >= 0; i --)
2033 res->params [i + 1] = sig->params [i];
2034 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
2041 MonoMethodSignature *sig;
2045 * generates IL code for the runtime invoke function
2046 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
2048 * we also catch exceptions if exc != null
2051 mono_marshal_get_runtime_invoke (MonoMethod *method)
2053 MonoMethodSignature *sig, *csig, *callsig;
2054 MonoExceptionClause *clause;
2055 MonoMethodHeader *header;
2056 MonoMethodBuilder *mb;
2057 GHashTable *cache = NULL;
2058 MonoClass *target_klass;
2059 MonoMethod *res = NULL;
2061 static MonoString *string_dummy = NULL;
2067 target_klass = method->klass;
2069 EnterCriticalSection (&marshal_mutex);
2071 if (method->string_ctor) {
2072 static GSList *strsig_list = NULL;
2076 for (item = strsig_list; item; item = item->next) {
2078 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
2084 callsig = mono_metadata_signature_dup (method->signature);
2085 callsig->ret = &mono_defaults.string_class->byval_arg;
2086 cs = g_new (CtorSigPair, 1);
2089 strsig_list = g_slist_prepend (strsig_list, cs);
2092 if (method->klass->valuetype && method->signature->hasthis) {
2094 * Valuetype methods receive a managed pointer as the this argument.
2095 * Create a new signature to reflect this.
2097 callsig = signature_dup_add_this (method->signature, method->klass);
2100 callsig = method->signature;
2103 cache = method->klass->image->runtime_invoke_cache;
2105 /* from mono_marshal_find_in_cache */
2106 res = g_hash_table_lookup (cache, callsig);
2107 LeaveCriticalSection (&marshal_mutex);
2113 target_klass = mono_defaults.object_class;
2115 /* to make it work with our special string constructors */
2116 if (!string_dummy) {
2117 MONO_GC_REGISTER_ROOT (string_dummy);
2118 string_dummy = mono_string_new_wrapper ("dummy");
2121 sig = method->signature;
2123 csig = mono_metadata_signature_alloc (method->klass->image, 4);
2125 csig->ret = &mono_defaults.object_class->byval_arg;
2126 if (method->klass->valuetype && method->signature->hasthis)
2127 csig->params [0] = callsig->params [0];
2129 csig->params [0] = &mono_defaults.object_class->byval_arg;
2130 csig->params [1] = &mono_defaults.int_class->byval_arg;
2131 csig->params [2] = &mono_defaults.int_class->byval_arg;
2132 csig->params [3] = &mono_defaults.int_class->byval_arg;
2134 name = mono_signature_to_name (callsig, "runtime_invoke");
2135 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
2138 /* allocate local 0 (object) tmp */
2139 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2140 /* allocate local 1 (object) exc */
2141 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2143 /* cond set *exc to null */
2144 mono_mb_emit_byte (mb, CEE_LDARG_2);
2145 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2146 mono_mb_emit_byte (mb, 3);
2147 mono_mb_emit_byte (mb, CEE_LDARG_2);
2148 mono_mb_emit_byte (mb, CEE_LDNULL);
2149 mono_mb_emit_byte (mb, CEE_STIND_I);
2152 if (method->string_ctor) {
2153 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2154 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2155 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
2157 mono_mb_emit_ldarg (mb, 0);
2161 for (i = 0; i < sig->param_count; i++) {
2162 MonoType *t = sig->params [i];
2165 mono_mb_emit_ldarg (mb, 1);
2167 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
2168 mono_mb_emit_byte (mb, CEE_ADD);
2170 mono_mb_emit_byte (mb, CEE_LDIND_I);
2175 type = sig->params [i]->type;
2179 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2181 case MONO_TYPE_BOOLEAN:
2183 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2186 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2189 case MONO_TYPE_CHAR:
2190 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2194 mono_mb_emit_byte (mb, CEE_LDIND_I);
2197 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2200 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2203 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2206 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2210 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2212 case MONO_TYPE_STRING:
2213 case MONO_TYPE_CLASS:
2214 case MONO_TYPE_ARRAY:
2216 case MONO_TYPE_SZARRAY:
2217 case MONO_TYPE_OBJECT:
2220 case MONO_TYPE_VALUETYPE:
2221 if (t->data.klass->enumtype) {
2222 type = t->data.klass->enum_basetype->type;
2225 mono_mb_emit_byte (mb, CEE_LDOBJ);
2226 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2229 g_assert_not_reached ();
2233 mono_mb_emit_ldarg (mb, 3);
2234 mono_mb_emit_calli (mb, callsig);
2236 if (sig->ret->byref) {
2238 g_assert_not_reached ();
2242 switch (sig->ret->type) {
2243 case MONO_TYPE_VOID:
2244 if (!method->string_ctor)
2245 mono_mb_emit_byte (mb, CEE_LDNULL);
2247 case MONO_TYPE_BOOLEAN:
2248 case MONO_TYPE_CHAR:
2261 case MONO_TYPE_VALUETYPE:
2262 /* box value types */
2263 mono_mb_emit_byte (mb, CEE_BOX);
2264 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2266 case MONO_TYPE_STRING:
2267 case MONO_TYPE_CLASS:
2268 case MONO_TYPE_ARRAY:
2269 case MONO_TYPE_SZARRAY:
2270 case MONO_TYPE_OBJECT:
2275 g_assert_not_reached ();
2278 mono_mb_emit_stloc (mb, 0);
2280 mono_mb_emit_byte (mb, CEE_LEAVE);
2282 mono_mb_emit_i4 (mb, 0);
2284 clause = g_new0 (MonoExceptionClause, 1);
2285 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2286 clause->try_len = mb->pos;
2289 clause->token_or_filter = mb->pos;
2291 mono_mb_emit_byte (mb, CEE_POP);
2292 mono_mb_emit_byte (mb, CEE_LDARG_2);
2293 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2294 mono_mb_emit_byte (mb, CEE_PREFIX1);
2295 mono_mb_emit_byte (mb, CEE_CGT_UN);
2296 mono_mb_emit_byte (mb, CEE_PREFIX1);
2297 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2299 clause->handler_offset = mb->pos;
2302 /* store exception */
2303 mono_mb_emit_stloc (mb, 1);
2305 mono_mb_emit_byte (mb, CEE_LDARG_2);
2306 mono_mb_emit_ldloc (mb, 1);
2307 mono_mb_emit_byte (mb, CEE_STIND_I);
2309 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2310 mono_mb_emit_stloc (mb, 0);
2312 mono_mb_emit_byte (mb, CEE_LEAVE);
2313 mono_mb_emit_i4 (mb, 0);
2315 clause->handler_len = mb->pos - clause->handler_offset;
2318 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2319 mono_mb_emit_ldloc (mb, 0);
2320 mono_mb_emit_byte (mb, CEE_RET);
2322 /* taken from mono_mb_create_and_cache */
2323 EnterCriticalSection (&marshal_mutex);
2325 res = g_hash_table_lookup (cache, callsig);
2326 /* Somebody may have created it before us */
2328 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2329 g_hash_table_insert (cache, callsig, res);
2330 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2333 LeaveCriticalSection (&marshal_mutex);
2334 /* end mono_mb_create_and_cache */
2338 header = ((MonoMethodNormal *)res)->header;
2339 header->num_clauses = 1;
2340 header->clauses = clause;
2346 * generates IL code to call managed methods from unmanaged code
2349 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2351 MonoMethodSignature *sig, *csig;
2352 MonoMethodBuilder *mb;
2353 MonoClass *klass = NULL;
2356 int i, pos = 0, *tmp_locals;
2357 static MonoMethodSignature *alloc_sig = NULL;
2360 g_assert (method != NULL);
2361 g_assert (!method->signature->pinvoke);
2363 cache = method->klass->image->managed_wrapper_cache;
2364 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2367 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2369 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2370 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2371 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2372 alloc_sig->pinvoke = 1;
2375 sig = method->signature;
2377 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2379 /* allocate local 0 (pointer) src_ptr */
2380 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2381 /* allocate local 1 (pointer) dst_ptr */
2382 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2383 /* allocate local 2 (boolean) delete_old */
2384 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2386 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2387 /* allocate local 3 to store the return value */
2388 mono_mb_add_local (mb, sig->ret);
2391 mono_mb_emit_icon (mb, 0);
2392 mono_mb_emit_byte (mb, CEE_STLOC_2);
2394 /* we copy the signature, so that we can modify it */
2395 csig = mono_metadata_signature_dup (sig);
2399 #ifdef PLATFORM_WIN32
2401 * Under windows, delegates passed to native code must use the STDCALL
2402 * calling convention.
2404 csig->call_convention = MONO_CALL_STDCALL;
2407 /* fixme: howto handle this ? */
2411 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2412 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2413 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2418 g_assert_not_reached ();
2423 /* we first do all conversions */
2424 tmp_locals = alloca (sizeof (int) * sig->param_count);
2425 for (i = 0; i < sig->param_count; i ++) {
2426 MonoType *t = sig->params [i];
2427 MonoMarshalSpec *spec = mspecs [i + 1];
2431 /* Ensure that we have marshalling info for this param */
2432 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2434 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2437 MonoMethod *marshal_native_to_managed;
2438 MonoMethod *get_instance;
2440 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2441 g_assert (mtype != NULL);
2442 mklass = mono_class_from_mono_type (mtype);
2443 g_assert (mklass != NULL);
2445 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2446 g_assert (marshal_native_to_managed);
2447 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2448 g_assert (get_instance);
2451 case MONO_TYPE_CLASS:
2452 case MONO_TYPE_OBJECT:
2453 case MONO_TYPE_STRING:
2454 case MONO_TYPE_ARRAY:
2455 case MONO_TYPE_SZARRAY:
2459 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2461 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2463 mono_mb_emit_byte (mb, CEE_CALL);
2464 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2466 mono_mb_emit_ldarg (mb, i);
2468 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2469 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2471 mono_mb_emit_stloc (mb, tmp_locals [i]);
2474 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2475 g_assert_not_reached ();
2482 case MONO_TYPE_CLASS: {
2483 klass = t->data.klass;
2485 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2487 if (klass->delegate) {
2488 g_assert (!t->byref);
2489 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2490 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2491 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2492 mono_mb_emit_ldarg (mb, i);
2493 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
2494 mono_mb_emit_stloc (mb, tmp_locals [i]);
2498 /* FIXME: Raise a MarshalDirectiveException here */
2499 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2501 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2502 mono_mb_emit_byte (mb, CEE_LDNULL);
2503 mono_mb_emit_stloc (mb, tmp_locals [i]);
2508 mono_mb_emit_ldarg (mb, i);
2512 /* Check for NULL and raise an exception */
2513 mono_mb_emit_byte (mb, CEE_BRTRUE);
2515 mono_mb_emit_i4 (mb, 0);
2517 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2519 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2520 mono_mb_emit_ldarg (mb, i);
2521 mono_mb_emit_byte (mb, CEE_LDIND_I);
2524 mono_mb_emit_byte (mb, CEE_STLOC_0);
2526 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2527 mono_mb_emit_stloc (mb, tmp_locals [i]);
2529 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2530 mono_mb_emit_byte (mb, CEE_BRFALSE);
2532 mono_mb_emit_i4 (mb, 0);
2534 /* Create and set dst */
2535 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2536 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2537 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2538 mono_mb_emit_stloc (mb, tmp_locals [i]);
2539 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2540 mono_mb_emit_icon (mb, sizeof (MonoObject));
2541 mono_mb_emit_byte (mb, CEE_ADD);
2542 mono_mb_emit_byte (mb, CEE_STLOC_1);
2544 /* emit valuetype conversion code */
2545 emit_struct_conv (mb, klass, TRUE);
2547 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2550 case MONO_TYPE_VALUETYPE:
2552 klass = sig->params [i]->data.klass;
2553 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2554 klass->blittable || klass->enumtype)
2557 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2559 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2563 mono_mb_emit_ldarg (mb, i);
2565 mono_mb_emit_ldarg_addr (mb, i);
2566 mono_mb_emit_byte (mb, CEE_STLOC_0);
2569 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2570 mono_mb_emit_byte (mb, CEE_BRFALSE);
2572 mono_mb_emit_i4 (mb, 0);
2575 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2576 mono_mb_emit_byte (mb, CEE_STLOC_1);
2578 /* emit valuetype conversion code */
2579 emit_struct_conv (mb, klass, TRUE);
2582 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2584 case MONO_TYPE_STRING: {
2585 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2590 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2591 csig->params [i] = &mono_defaults.int_class->byval_arg;
2593 mono_mb_emit_ldarg (mb, i);
2596 case MONO_NATIVE_LPWSTR:
2597 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
2599 case MONO_NATIVE_LPSTR:
2600 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
2603 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2604 MonoException *exc = mono_get_exception_not_implemented (msg);
2607 mono_raise_exception (exc);
2611 mono_mb_emit_stloc (mb, tmp_locals [i]);
2614 case MONO_TYPE_ARRAY:
2615 case MONO_TYPE_SZARRAY:
2619 klass = mono_class_from_mono_type (t);
2621 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2622 csig->params [i] = &mono_defaults.int_class->byval_arg;
2624 g_warning ("array marshaling not implemented");
2625 g_assert_not_reached ();
2630 for (i = 0; i < sig->param_count; i++) {
2631 MonoType *t = sig->params [i];
2634 case MONO_TYPE_BOOLEAN:
2648 mono_mb_emit_ldarg (mb, i);
2650 case MONO_TYPE_STRING:
2652 mono_mb_emit_ldarg (mb, i);
2654 g_assert (tmp_locals [i]);
2655 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2658 case MONO_TYPE_CLASS:
2660 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2662 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2664 case MONO_TYPE_ARRAY:
2665 case MONO_TYPE_SZARRAY:
2666 case MONO_TYPE_OBJECT:
2668 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2670 mono_mb_emit_ldarg (mb, i);
2672 case MONO_TYPE_VALUETYPE:
2673 klass = sig->params [i]->data.klass;
2674 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2675 klass->blittable || klass->enumtype) {
2676 mono_mb_emit_ldarg (mb, i);
2680 g_assert (tmp_locals [i]);
2682 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2684 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2687 g_warning ("type 0x%02x unknown", t->type);
2688 g_assert_not_reached ();
2692 emit_thread_interrupt_checkpoint (mb);
2693 mono_mb_emit_managed_call (mb, method, NULL);
2695 /* Ensure that we have marshalling info for the return */
2696 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2698 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
2699 MonoMarshalSpec *spec = mspecs [0];
2704 g_assert (!sig->ret->byref);
2706 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2708 mklass = mono_class_from_mono_type (mtype);
2711 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2713 switch (sig->ret->type) {
2714 case MONO_TYPE_CLASS:
2715 case MONO_TYPE_OBJECT:
2716 case MONO_TYPE_STRING:
2717 case MONO_TYPE_ARRAY:
2718 case MONO_TYPE_SZARRAY:
2719 mono_mb_emit_byte (mb, CEE_STLOC_3);
2721 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2722 mono_mb_emit_stloc (mb, loc1);
2724 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2725 mono_mb_emit_byte (mb, CEE_CALL);
2726 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "GetInstance", 1)));
2727 mono_mb_emit_byte (mb, CEE_DUP);
2729 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2730 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2731 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "MarshalManagedToNative", 1)));
2732 mono_mb_emit_byte (mb, CEE_STLOC_3);
2734 mono_mb_emit_ldloc (mb, loc1);
2735 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2736 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "CleanUpManagedData", 1)));
2740 g_warning ("custom marshalling of type %x is currently not supported", sig->ret->type);
2741 g_assert_not_reached ();
2746 if (!sig->ret->byref) {
2747 switch (sig->ret->type) {
2748 case MONO_TYPE_VOID:
2750 case MONO_TYPE_BOOLEAN:
2764 case MONO_TYPE_OBJECT:
2765 mono_mb_emit_byte (mb, CEE_STLOC_3);
2767 case MONO_TYPE_STRING:
2768 csig->ret = &mono_defaults.int_class->byval_arg;
2770 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
2771 mono_mb_emit_byte (mb, CEE_STLOC_3);
2773 case MONO_TYPE_VALUETYPE:
2774 klass = sig->ret->data.klass;
2775 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2776 klass->blittable || klass->enumtype)
2779 /* load pointer to returned value type */
2780 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2781 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2783 /* store the address of the source into local variable 0 */
2784 mono_mb_emit_byte (mb, CEE_STLOC_0);
2785 /* allocate space for the native struct and
2786 * store the address into dst_ptr */
2787 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2788 g_assert (retobj_var);
2789 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2790 mono_mb_emit_byte (mb, CEE_CONV_I);
2791 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2792 emit_thread_interrupt_checkpoint (mb);
2793 mono_mb_emit_byte (mb, CEE_STLOC_1);
2794 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2795 mono_mb_emit_stloc (mb, retobj_var);
2797 /* emit valuetype conversion code */
2798 emit_struct_conv (mb, klass, FALSE);
2800 case MONO_TYPE_CLASS: {
2803 klass = sig->ret->data.klass;
2805 if (klass->delegate) {
2806 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
2807 mono_mb_emit_byte (mb, CEE_STLOC_3);
2811 /* FIXME: Raise a MarshalDirectiveException here */
2812 g_assert ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT);
2814 mono_mb_emit_byte (mb, CEE_STLOC_0);
2815 /* Check for null */
2816 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2817 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2818 mono_mb_emit_byte (mb, CEE_LDNULL);
2819 mono_mb_emit_byte (mb, CEE_STLOC_3);
2820 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2822 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2825 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2826 mono_mb_emit_icon (mb, sizeof (MonoObject));
2827 mono_mb_emit_byte (mb, CEE_ADD);
2828 mono_mb_emit_byte (mb, CEE_STLOC_0);
2830 /* Allocate and set dest */
2831 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2832 mono_mb_emit_byte (mb, CEE_CONV_I);
2833 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2834 emit_thread_interrupt_checkpoint (mb);
2835 mono_mb_emit_byte (mb, CEE_DUP);
2836 mono_mb_emit_byte (mb, CEE_STLOC_1);
2837 mono_mb_emit_byte (mb, CEE_STLOC_3);
2839 emit_struct_conv (mb, klass, FALSE);
2841 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2845 g_warning ("return type 0x%02x unknown", sig->ret->type);
2846 g_assert_not_reached ();
2849 mono_mb_emit_byte (mb, CEE_STLOC_3);
2852 /* Convert byref arguments back */
2853 for (i = 0; i < sig->param_count; i ++) {
2854 MonoType *t = sig->params [i];
2855 MonoMarshalSpec *spec = mspecs [i + 1];
2857 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2860 MonoMethod *cleanup_managed;
2861 MonoMethod *get_instance;
2863 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2864 g_assert (mtype != NULL);
2865 mklass = mono_class_from_mono_type (mtype);
2866 g_assert (mklass != NULL);
2868 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2869 g_assert (get_instance);
2870 cleanup_managed = mono_find_method_by_name (mklass, "CleanUpManagedData", 1);
2871 g_assert (cleanup_managed);
2874 case MONO_TYPE_CLASS:
2875 case MONO_TYPE_OBJECT:
2876 case MONO_TYPE_STRING:
2877 case MONO_TYPE_ARRAY:
2878 case MONO_TYPE_SZARRAY:
2880 g_assert_not_reached ();
2882 /* Call CleanUpManagedData */
2884 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
2886 mono_mb_emit_byte (mb, CEE_CALL);
2887 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2889 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2890 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2891 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_managed));
2895 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2896 g_assert_not_reached ();
2906 case MONO_TYPE_CLASS: {
2909 klass = t->data.klass;
2911 /* Check for null */
2912 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2913 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2914 mono_mb_emit_ldarg (mb, i);
2915 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2916 mono_mb_emit_byte (mb, CEE_STIND_I);
2917 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2919 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2922 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2923 mono_mb_emit_icon (mb, sizeof (MonoObject));
2924 mono_mb_emit_byte (mb, CEE_ADD);
2925 mono_mb_emit_byte (mb, CEE_STLOC_0);
2927 /* Allocate and set dest */
2928 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2929 mono_mb_emit_byte (mb, CEE_CONV_I);
2930 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2931 emit_thread_interrupt_checkpoint (mb);
2932 mono_mb_emit_byte (mb, CEE_STLOC_1);
2934 /* Update argument pointer */
2935 mono_mb_emit_ldarg (mb, i);
2936 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2937 mono_mb_emit_byte (mb, CEE_STIND_I);
2939 /* emit valuetype conversion code */
2940 emit_struct_conv (mb, klass, FALSE);
2942 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2945 case MONO_TYPE_VALUETYPE: {
2948 klass = t->data.klass;
2950 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2951 klass->blittable || klass->enumtype) {
2955 /* Check for null */
2956 mono_mb_emit_ldarg (mb, i);
2957 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
2960 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2961 mono_mb_emit_byte (mb, CEE_STLOC_0);
2964 mono_mb_emit_ldarg (mb, i);
2965 mono_mb_emit_byte (mb, CEE_STLOC_1);
2967 /* emit valuetype conversion code */
2968 emit_struct_conv (mb, klass, FALSE);
2970 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2977 mono_mb_emit_ldloc (mb, retobj_var);
2978 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2979 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
2980 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2983 if (!MONO_TYPE_IS_VOID(sig->ret))
2984 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2985 mono_mb_emit_byte (mb, CEE_RET);
2989 res = mono_mb_create_and_cache (cache, method,
2990 mb, csig, sig->param_count + 16);
2992 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2997 /* 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)); */
3003 * mono_marshal_get_ldfld_wrapper:
3004 * @type: the type of the field
3006 * This method generates a function which can be use to load a field with type
3007 * @type from an object. The generated function has the following signature:
3008 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
3011 mono_marshal_get_ldfld_wrapper (MonoType *type)
3013 MonoMethodSignature *sig, *csig;
3014 MonoMethodBuilder *mb;
3017 static GHashTable *ldfld_hash = NULL;
3019 int t, pos0, pos1 = 0;
3024 if (type->type == MONO_TYPE_SZARRAY) {
3025 klass = mono_defaults.array_class;
3026 } else if (type->type == MONO_TYPE_VALUETYPE) {
3027 klass = type->data.klass;
3028 if (klass->enumtype) {
3029 t = klass->enum_basetype->type;
3030 klass = mono_class_from_mono_type (klass->enum_basetype);
3032 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3033 t == MONO_TYPE_CLASS) {
3034 klass = mono_defaults.object_class;
3035 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3036 klass = mono_defaults.int_class;
3038 klass = mono_class_from_mono_type (type);
3041 klass = mono_defaults.int_class;
3044 EnterCriticalSection (&marshal_mutex);
3046 ldfld_hash = g_hash_table_new (NULL, NULL);
3047 res = g_hash_table_lookup (ldfld_hash, klass);
3048 LeaveCriticalSection (&marshal_mutex);
3052 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
3053 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
3056 mb->method->save_lmf = 1;
3058 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3059 sig->params [0] = &mono_defaults.object_class->byval_arg;
3060 sig->params [1] = &mono_defaults.int_class->byval_arg;
3061 sig->params [2] = &mono_defaults.int_class->byval_arg;
3062 sig->params [3] = &mono_defaults.int_class->byval_arg;
3063 sig->ret = &klass->byval_arg;
3065 mono_mb_emit_ldarg (mb, 0);
3066 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3068 mono_mb_emit_ldarg (mb, 0);
3069 mono_mb_emit_ldarg (mb, 1);
3070 mono_mb_emit_ldarg (mb, 2);
3072 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
3073 csig->params [0] = &mono_defaults.object_class->byval_arg;
3074 csig->params [1] = &mono_defaults.int_class->byval_arg;
3075 csig->params [2] = &mono_defaults.int_class->byval_arg;
3076 csig->ret = &klass->this_arg;
3079 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
3080 emit_thread_interrupt_checkpoint (mb);
3082 if (klass->valuetype) {
3083 mono_mb_emit_byte (mb, CEE_UNBOX);
3084 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3085 mono_mb_emit_byte (mb, CEE_BR);
3087 mono_mb_emit_i4 (mb, 0);
3089 mono_mb_emit_byte (mb, CEE_RET);
3093 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
3095 mono_mb_emit_ldarg (mb, 0);
3096 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3097 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3098 mono_mb_emit_ldarg (mb, 3);
3099 mono_mb_emit_byte (mb, CEE_ADD);
3101 if (klass->valuetype)
3102 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
3107 case MONO_TYPE_BOOLEAN:
3108 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3110 case MONO_TYPE_CHAR:
3113 mono_mb_emit_byte (mb, CEE_LDIND_I2);
3117 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3121 mono_mb_emit_byte (mb, CEE_LDIND_I8);
3124 mono_mb_emit_byte (mb, CEE_LDIND_R4);
3127 mono_mb_emit_byte (mb, CEE_LDIND_R8);
3129 case MONO_TYPE_ARRAY:
3131 case MONO_TYPE_FNPTR:
3132 case MONO_TYPE_SZARRAY:
3133 case MONO_TYPE_OBJECT:
3134 case MONO_TYPE_CLASS:
3135 case MONO_TYPE_STRING:
3138 mono_mb_emit_byte (mb, CEE_LDIND_I);
3140 case MONO_TYPE_VALUETYPE:
3141 g_assert (!klass->enumtype);
3142 mono_mb_emit_byte (mb, CEE_LDOBJ);
3143 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3146 g_warning ("type %x not implemented", type->type);
3147 g_assert_not_reached ();
3150 mono_mb_emit_byte (mb, CEE_RET);
3152 res = mono_mb_create_and_cache (ldfld_hash, klass,
3153 mb, sig, sig->param_count + 16);
3160 * mono_marshal_get_stfld_wrapper:
3161 * @type: the type of the field
3163 * This method generates a function which can be use to store a field with type
3164 * @type. The generated function has the following signature:
3165 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
3168 mono_marshal_get_stfld_wrapper (MonoType *type)
3170 MonoMethodSignature *sig, *csig;
3171 MonoMethodBuilder *mb;
3174 static GHashTable *stfld_hash = NULL;
3181 if (type->type == MONO_TYPE_SZARRAY) {
3182 klass = mono_defaults.array_class;
3183 } else if (type->type == MONO_TYPE_VALUETYPE) {
3184 klass = type->data.klass;
3185 if (klass->enumtype) {
3186 t = klass->enum_basetype->type;
3187 klass = mono_class_from_mono_type (klass->enum_basetype);
3189 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3190 t == MONO_TYPE_CLASS) {
3191 klass = mono_defaults.object_class;
3192 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3193 klass = mono_defaults.int_class;
3195 klass = mono_class_from_mono_type (type);
3198 klass = mono_defaults.int_class;
3201 EnterCriticalSection (&marshal_mutex);
3203 stfld_hash = g_hash_table_new (NULL, NULL);
3204 res = g_hash_table_lookup (stfld_hash, klass);
3205 LeaveCriticalSection (&marshal_mutex);
3209 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
3210 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
3213 mb->method->save_lmf = 1;
3215 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
3216 sig->params [0] = &mono_defaults.object_class->byval_arg;
3217 sig->params [1] = &mono_defaults.int_class->byval_arg;
3218 sig->params [2] = &mono_defaults.int_class->byval_arg;
3219 sig->params [3] = &mono_defaults.int_class->byval_arg;
3220 sig->params [4] = &klass->byval_arg;
3221 sig->ret = &mono_defaults.void_class->byval_arg;
3223 mono_mb_emit_ldarg (mb, 0);
3224 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3226 mono_mb_emit_ldarg (mb, 0);
3227 mono_mb_emit_ldarg (mb, 1);
3228 mono_mb_emit_ldarg (mb, 2);
3229 mono_mb_emit_ldarg (mb, 4);
3231 if (klass->valuetype) {
3232 mono_mb_emit_byte (mb, CEE_BOX);
3233 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3236 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3237 csig->params [0] = &mono_defaults.object_class->byval_arg;
3238 csig->params [1] = &mono_defaults.int_class->byval_arg;
3239 csig->params [2] = &mono_defaults.int_class->byval_arg;
3240 csig->params [3] = &klass->this_arg;
3241 csig->ret = &mono_defaults.void_class->byval_arg;
3244 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
3245 emit_thread_interrupt_checkpoint (mb);
3247 mono_mb_emit_byte (mb, CEE_RET);
3249 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3251 mono_mb_emit_ldarg (mb, 0);
3252 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3253 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3254 mono_mb_emit_ldarg (mb, 3);
3255 mono_mb_emit_byte (mb, CEE_ADD);
3256 mono_mb_emit_ldarg (mb, 4);
3261 case MONO_TYPE_BOOLEAN:
3262 mono_mb_emit_byte (mb, CEE_STIND_I1);
3264 case MONO_TYPE_CHAR:
3267 mono_mb_emit_byte (mb, CEE_STIND_I2);
3271 mono_mb_emit_byte (mb, CEE_STIND_I4);
3275 mono_mb_emit_byte (mb, CEE_STIND_I8);
3278 mono_mb_emit_byte (mb, CEE_STIND_R4);
3281 mono_mb_emit_byte (mb, CEE_STIND_R8);
3283 case MONO_TYPE_ARRAY:
3285 case MONO_TYPE_FNPTR:
3286 case MONO_TYPE_SZARRAY:
3287 case MONO_TYPE_OBJECT:
3288 case MONO_TYPE_CLASS:
3289 case MONO_TYPE_STRING:
3292 mono_mb_emit_byte (mb, CEE_STIND_I);
3294 case MONO_TYPE_VALUETYPE:
3295 g_assert (!klass->enumtype);
3296 mono_mb_emit_byte (mb, CEE_STOBJ);
3297 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3300 g_warning ("type %x not implemented", type->type);
3301 g_assert_not_reached ();
3304 mono_mb_emit_byte (mb, CEE_RET);
3306 res = mono_mb_create_and_cache (stfld_hash, klass,
3307 mb, sig, sig->param_count + 16);
3314 * generates IL code for the icall wrapper (the generated method
3315 * calls the unmanaged code in func)
3318 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3320 MonoMethodSignature *csig;
3321 MonoMethodBuilder *mb;
3325 g_assert (sig->pinvoke);
3327 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3329 mb->method->save_lmf = 1;
3331 /* we copy the signature, so that we can modify it */
3334 mono_mb_emit_byte (mb, CEE_LDARG_0);
3336 for (i = 0; i < sig->param_count; i++)
3337 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3339 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3340 emit_thread_interrupt_checkpoint (mb);
3341 mono_mb_emit_byte (mb, CEE_RET);
3343 csig = mono_metadata_signature_dup (sig);
3345 if (csig->call_convention == MONO_CALL_VARARG)
3346 csig->call_convention = 0;
3348 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3355 MonoMethodBuilder *mb;
3356 MonoMethodPInvoke *piinfo;
3357 } EmitMarshalContext;
3360 MARSHAL_ACTION_CONV_IN,
3361 MARSHAL_ACTION_PUSH,
3362 MARSHAL_ACTION_CONV_OUT,
3363 MARSHAL_ACTION_CONV_RESULT
3367 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
3368 MonoMarshalSpec *spec,
3369 int conv_arg, MonoType **conv_arg_type,
3370 MarshalAction action)
3374 MonoMethod *get_instance, *cleanup_native;
3375 MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
3376 MonoMethodBuilder *mb = m->mb;
3379 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, mb->method->klass->image);
3380 g_assert (mtype != NULL);
3381 mklass = mono_class_from_mono_type (mtype);
3382 g_assert (mklass != NULL);
3384 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3385 g_assert (get_instance);
3386 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3387 g_assert (cleanup_native);
3388 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3389 g_assert (marshal_managed_to_native);
3390 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3391 g_assert (marshal_native_to_managed);
3394 case MARSHAL_ACTION_CONV_IN:
3396 case MONO_TYPE_CLASS:
3397 case MONO_TYPE_OBJECT:
3398 case MONO_TYPE_STRING:
3399 case MONO_TYPE_ARRAY:
3400 case MONO_TYPE_SZARRAY:
3401 case MONO_TYPE_VALUETYPE:
3405 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3407 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3409 mono_mb_emit_byte (mb, CEE_CALL);
3410 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3412 mono_mb_emit_ldarg (mb, argnum);
3414 if (t->type == MONO_TYPE_VALUETYPE) {
3416 * Since we can't determine the type of the argument, we
3417 * will assume the unmanaged function takes a pointer.
3419 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3421 mono_mb_emit_byte (mb, CEE_BOX);
3422 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3425 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3426 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3427 mono_mb_emit_stloc (mb, conv_arg);
3431 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3432 g_assert_not_reached ();
3438 case MARSHAL_ACTION_CONV_OUT:
3440 case MONO_TYPE_CLASS:
3441 case MONO_TYPE_OBJECT:
3442 case MONO_TYPE_STRING:
3443 case MONO_TYPE_ARRAY:
3444 case MONO_TYPE_SZARRAY:
3445 case MONO_TYPE_VALUETYPE:
3446 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3448 mono_mb_emit_byte (mb, CEE_CALL);
3449 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3451 mono_mb_emit_ldloc (mb, conv_arg);
3453 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3454 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3459 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3460 g_assert_not_reached ();
3465 case MARSHAL_ACTION_PUSH:
3466 mono_mb_emit_ldloc (mb, conv_arg);
3469 case MARSHAL_ACTION_CONV_RESULT:
3470 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3473 case MONO_TYPE_CLASS:
3474 case MONO_TYPE_OBJECT:
3475 case MONO_TYPE_STRING:
3476 case MONO_TYPE_ARRAY:
3477 case MONO_TYPE_SZARRAY:
3478 mono_mb_emit_byte (mb, CEE_STLOC_3);
3480 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3481 mono_mb_emit_stloc (mb, loc1);
3483 mono_mb_emit_ldstr (mb, spec->data.custom_data.cookie);
3485 mono_mb_emit_byte (mb, CEE_CALL);
3486 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3487 mono_mb_emit_byte (mb, CEE_DUP);
3489 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3490 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3491 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3492 mono_mb_emit_byte (mb, CEE_STLOC_3);
3494 mono_mb_emit_ldloc (mb, loc1);
3495 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3496 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3500 g_assert_not_reached ();
3506 g_assert_not_reached ();
3513 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
3514 MonoMarshalSpec *spec,
3515 int conv_arg, MonoType **conv_arg_type,
3516 MarshalAction action)
3518 MonoMethodBuilder *mb = m->mb;
3521 case MARSHAL_ACTION_CONV_IN: {
3522 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
3524 g_assert (t->type == MONO_TYPE_OBJECT);
3525 g_assert (!t->byref);
3527 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3528 mono_mb_emit_ldarg (mb, argnum);
3529 mono_mb_emit_icon (mb, encoding);
3530 mono_mb_emit_icall (mb, mono_marshal_asany);
3531 mono_mb_emit_stloc (mb, conv_arg);
3535 case MARSHAL_ACTION_PUSH:
3536 mono_mb_emit_ldloc (mb, conv_arg);
3539 case MARSHAL_ACTION_CONV_OUT: {
3540 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
3542 mono_mb_emit_ldarg (mb, argnum);
3543 mono_mb_emit_ldloc (mb, conv_arg);
3544 mono_mb_emit_icon (mb, encoding);
3545 mono_mb_emit_icall (mb, mono_marshal_free_asany);
3550 g_assert_not_reached ();
3557 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
3558 MonoMarshalSpec *spec,
3559 int conv_arg, MonoType **conv_arg_type,
3560 MarshalAction action)
3562 MonoMethodBuilder *mb = m->mb;
3566 klass = t->data.klass;
3569 case MARSHAL_ACTION_CONV_IN:
3570 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3571 klass->blittable || klass->enumtype)
3574 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3576 /* store the address of the source into local variable 0 */
3578 mono_mb_emit_ldarg (mb, argnum);
3580 mono_mb_emit_ldarg_addr (mb, argnum);
3582 mono_mb_emit_byte (mb, CEE_STLOC_0);
3584 /* allocate space for the native struct and
3585 * store the address into local variable 1 (dest) */
3586 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3587 mono_mb_emit_byte (mb, CEE_PREFIX1);
3588 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3589 mono_mb_emit_stloc (mb, conv_arg);
3592 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3593 mono_mb_emit_byte (mb, CEE_BRFALSE);
3595 mono_mb_emit_i4 (mb, 0);
3599 mono_mb_emit_ldloc (mb, conv_arg);
3600 mono_mb_emit_byte (mb, CEE_STLOC_1);
3602 /* emit valuetype conversion code */
3603 emit_struct_conv (mb, klass, FALSE);
3606 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3609 case MARSHAL_ACTION_PUSH:
3610 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3611 klass->blittable || klass->enumtype) {
3612 mono_mb_emit_ldarg (mb, argnum);
3615 mono_mb_emit_ldloc (mb, conv_arg);
3617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3618 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3619 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3623 case MARSHAL_ACTION_CONV_OUT:
3627 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3628 klass->blittable || klass->enumtype)
3631 /* dst = argument */
3632 mono_mb_emit_ldarg (mb, argnum);
3633 mono_mb_emit_byte (mb, CEE_STLOC_1);
3635 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3636 mono_mb_emit_byte (mb, CEE_BRFALSE);
3638 mono_mb_emit_i4 (mb, 0);
3640 /* src = tmp_locals [i] */
3641 mono_mb_emit_ldloc (mb, conv_arg);
3642 mono_mb_emit_byte (mb, CEE_STLOC_0);
3644 /* emit valuetype conversion code */
3645 emit_struct_conv (mb, klass, TRUE);
3647 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3650 case MARSHAL_ACTION_CONV_RESULT:
3651 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3653 mono_mb_emit_byte (mb, CEE_STLOC_3);
3656 /* load pointer to returned value type */
3657 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3658 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3659 /* store the address of the source into local variable 0 */
3660 mono_mb_emit_byte (mb, CEE_STLOC_0);
3662 mono_mb_emit_ldloc_addr (mb, 3);
3663 mono_mb_emit_byte (mb, CEE_STLOC_1);
3665 /* emit valuetype conversion code */
3666 emit_struct_conv (mb, klass, TRUE);
3670 g_assert_not_reached ();
3677 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
3678 MonoMarshalSpec *spec, int conv_arg,
3679 MonoType **conv_arg_type, MarshalAction action)
3681 MonoMethodBuilder *mb = m->mb;
3685 /* Ensure that we have marshalling info for this param */
3686 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3688 if (spec && spec->native == MONO_NATIVE_CUSTOM)
3689 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
3691 if (spec && spec->native == MONO_NATIVE_ASANY)
3692 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
3695 case MONO_TYPE_VALUETYPE:
3696 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
3697 case MONO_TYPE_STRING: {
3698 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3700 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3701 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3704 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3707 mono_mb_emit_ldarg (mb, argnum);
3708 mono_mb_emit_byte (mb, CEE_LDIND_I);
3710 mono_mb_emit_ldarg (mb, argnum);
3714 case MONO_NATIVE_LPWSTR:
3715 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPWSTR));
3717 case MONO_NATIVE_LPSTR:
3718 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
3720 case MONO_NATIVE_LPTSTR:
3721 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPTSTR));
3724 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3725 MonoException *exc = mono_get_exception_not_implemented (msg);
3728 mono_raise_exception (exc);
3732 mono_mb_emit_stloc (mb, conv_arg);
3735 case MONO_TYPE_CLASS:
3736 case MONO_TYPE_OBJECT:
3737 klass = t->data.klass;
3739 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3740 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3742 if (klass->delegate) {
3743 g_assert (!t->byref);
3744 mono_mb_emit_ldarg (mb, argnum);
3745 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
3746 mono_mb_emit_stloc (mb, conv_arg);
3747 } else if (klass == mono_defaults.stringbuilder_class) {
3748 MonoMarshalNative encoding = mono_marshal_get_stringbuilder_to_ptr_encoding (m->piinfo, spec);
3750 g_assert (!t->byref);
3751 mono_mb_emit_ldarg (mb, argnum);
3754 mono_mb_emit_icall (mb, conv_to_icall (encoding));
3756 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3757 MonoException *exc = mono_get_exception_not_implemented (msg);
3760 mono_raise_exception (exc);
3763 mono_mb_emit_stloc (mb, conv_arg);
3764 } else if (klass->blittable) {
3765 mono_mb_emit_ldarg (mb, argnum);
3766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3767 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3768 mono_mb_emit_icon (mb, sizeof (MonoObject));
3769 mono_mb_emit_byte (mb, CEE_ADD);
3770 mono_mb_emit_stloc (mb, conv_arg);
3773 mono_mb_emit_byte (mb, CEE_LDNULL);
3774 mono_mb_emit_stloc (mb, conv_arg);
3777 /* we dont need any conversions for out parameters */
3778 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3781 mono_mb_emit_ldarg (mb, argnum);
3782 mono_mb_emit_byte (mb, CEE_LDIND_I);
3785 mono_mb_emit_ldarg (mb, argnum);
3786 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3787 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3790 /* store the address of the source into local variable 0 */
3791 mono_mb_emit_byte (mb, CEE_STLOC_0);
3792 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3793 mono_mb_emit_byte (mb, CEE_BRFALSE);
3795 mono_mb_emit_i4 (mb, 0);
3797 /* allocate space for the native struct and store the address */
3798 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3799 mono_mb_emit_byte (mb, CEE_PREFIX1);
3800 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3801 mono_mb_emit_stloc (mb, conv_arg);
3803 /* set the src_ptr */
3804 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3805 mono_mb_emit_icon (mb, sizeof (MonoObject));
3806 mono_mb_emit_byte (mb, CEE_ADD);
3807 mono_mb_emit_byte (mb, CEE_STLOC_0);
3810 mono_mb_emit_ldloc (mb, conv_arg);
3811 mono_mb_emit_byte (mb, CEE_STLOC_1);
3813 /* emit valuetype conversion code */
3814 emit_struct_conv (mb, klass, FALSE);
3816 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3820 case MONO_TYPE_ARRAY:
3821 case MONO_TYPE_SZARRAY:
3822 klass = mono_class_from_mono_type (t);
3824 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3825 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3827 if (klass->element_class == mono_defaults.string_class) {
3828 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3830 mono_mb_emit_ldarg (mb, argnum);
3832 mono_mb_emit_byte (mb, CEE_LDIND_I);
3835 case MONO_NATIVE_LPSTR:
3836 mono_mb_emit_icall (mb, mono_marshal_string_array);
3838 case MONO_NATIVE_LPWSTR:
3839 mono_mb_emit_icall (mb, mono_marshal_string_array_to_unicode);
3842 char *msg = g_strdup_printf ("string array marshalling conversion %d not implemented", encoding);
3843 MonoException *exc = mono_get_exception_not_implemented (msg);
3846 mono_raise_exception (exc);
3849 mono_mb_emit_stloc (mb, conv_arg);
3851 else if (klass->element_class->blittable) {
3852 mono_mb_emit_ldarg (mb, argnum);
3854 mono_mb_emit_byte (mb, CEE_LDIND_I);
3855 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
3856 mono_mb_emit_stloc (mb, conv_arg);
3860 guint32 label1, label2, label3;
3861 int index_var, src_var, dest_ptr, esize;
3862 MonoMarshalNative encoding = mono_marshal_get_stringbuilder_to_ptr_encoding (m->piinfo, spec);
3864 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3866 eklass = klass->element_class;
3868 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3869 mono_mb_emit_ldarg (mb, argnum);
3871 mono_mb_emit_byte (mb, CEE_LDIND_I);
3872 mono_mb_emit_stloc (mb, src_var);
3875 mono_mb_emit_ldloc (mb, src_var);
3876 mono_mb_emit_stloc (mb, conv_arg);
3877 mono_mb_emit_ldloc (mb, src_var);
3878 mono_mb_emit_byte (mb, CEE_BRFALSE);
3880 mono_mb_emit_i4 (mb, 0);
3882 if (eklass == mono_defaults.stringbuilder_class) {
3883 if (encoding == -1) {
3884 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3885 MonoException *exc = mono_get_exception_not_implemented (msg);
3888 mono_raise_exception (exc);
3892 if (eklass == mono_defaults.stringbuilder_class)
3893 esize = sizeof (gpointer);
3895 esize = mono_class_native_size (eklass, NULL);
3897 /* allocate space for the native struct and store the address */
3898 mono_mb_emit_icon (mb, esize);
3899 mono_mb_emit_ldloc (mb, src_var);
3900 mono_mb_emit_byte (mb, CEE_LDLEN);
3901 mono_mb_emit_byte (mb, CEE_MUL);
3902 mono_mb_emit_byte (mb, CEE_PREFIX1);
3903 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3904 mono_mb_emit_stloc (mb, conv_arg);
3906 mono_mb_emit_ldloc (mb, conv_arg);
3907 mono_mb_emit_stloc (mb, dest_ptr);
3909 /* Emit marshalling loop */
3910 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3911 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3912 mono_mb_emit_stloc (mb, index_var);
3914 mono_mb_emit_ldloc (mb, index_var);
3915 mono_mb_emit_ldloc (mb, src_var);
3916 mono_mb_emit_byte (mb, CEE_LDLEN);
3917 mono_mb_emit_byte (mb, CEE_BGE);
3919 mono_mb_emit_i4 (mb, 0);
3921 /* Emit marshalling code */
3923 if (eklass == mono_defaults.stringbuilder_class) {
3924 mono_mb_emit_ldloc (mb, dest_ptr);
3925 mono_mb_emit_ldloc (mb, src_var);
3926 mono_mb_emit_ldloc (mb, index_var);
3927 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3928 mono_mb_emit_icall (mb, conv_to_icall (encoding));
3929 mono_mb_emit_byte (mb, CEE_STIND_I);
3932 /* set the src_ptr */
3933 mono_mb_emit_ldloc (mb, src_var);
3934 mono_mb_emit_ldloc (mb, index_var);
3935 mono_mb_emit_byte (mb, CEE_LDELEMA);
3936 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
3937 mono_mb_emit_byte (mb, CEE_STLOC_0);
3940 mono_mb_emit_ldloc (mb, dest_ptr);
3941 mono_mb_emit_byte (mb, CEE_STLOC_1);
3943 /* emit valuetype conversion code */
3944 emit_struct_conv (mb, eklass, FALSE);
3947 mono_mb_emit_add_to_local (mb, index_var, 1);
3948 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
3950 mono_mb_emit_byte (mb, CEE_BR);
3951 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
3953 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
3954 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
3958 case MONO_TYPE_BOOLEAN: {
3959 MonoType *local_type;
3960 int variant_bool = 0;
3964 local_type = &mono_defaults.int32_class->byval_arg;
3966 switch (spec->native) {
3967 case MONO_NATIVE_I1:
3968 local_type = &mono_defaults.byte_class->byval_arg;
3970 case MONO_NATIVE_VARIANTBOOL:
3971 local_type = &mono_defaults.int16_class->byval_arg;
3975 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
3979 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3980 conv_arg = mono_mb_add_local (mb, local_type);
3981 mono_mb_emit_ldarg (mb, argnum);
3982 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3984 mono_mb_emit_byte (mb, CEE_NEG);
3985 mono_mb_emit_stloc (mb, conv_arg);
3994 * mono_marshal_get_native_wrapper:
3995 * @method: The MonoMethod to wrap.
3997 * generates IL code for the pinvoke wrapper (the generated method
3998 * calls the unmanaged code in method->addr)
4001 mono_marshal_get_native_wrapper (MonoMethod *method)
4003 EmitMarshalContext m;
4004 MonoMethodSignature *sig, *csig;
4005 MonoMethodPInvoke *piinfo;
4006 MonoMethodBuilder *mb;
4007 MonoMarshalSpec **mspecs;
4011 gboolean pinvoke = FALSE;
4012 int i, pos, argnum, *tmp_locals;
4014 const char *exc_class = "MissingMethodException";
4015 const char *exc_arg = NULL;
4017 g_assert (method != NULL);
4018 g_assert (method->signature->pinvoke);
4020 cache = method->klass->image->native_wrapper_cache;
4021 if ((res = mono_marshal_find_in_cache (cache, method)))
4024 sig = method->signature;
4026 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4027 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
4030 if (!method->addr) {
4032 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
4034 method->addr = mono_lookup_internal_call (method);
4037 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4039 mb->method->save_lmf = 1;
4041 piinfo = (MonoMethodPInvoke *)method;
4043 if (!method->addr) {
4044 mono_mb_emit_exception (mb, exc_class, exc_arg);
4045 csig = mono_metadata_signature_dup (sig);
4047 res = mono_mb_create_and_cache (cache, method,
4048 mb, csig, csig->param_count + 16);
4056 /* internal calls: we simply push all arguments and call the method (no conversions) */
4057 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4059 /* hack - string constructors returns a value */
4060 if (method->string_ctor) {
4061 csig = mono_metadata_signature_dup (sig);
4062 csig->ret = &mono_defaults.string_class->byval_arg;
4067 mono_mb_emit_byte (mb, CEE_LDARG_0);
4069 for (i = 0; i < sig->param_count; i++)
4070 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4072 g_assert (method->addr);
4073 mono_mb_emit_native_call (mb, csig, method->addr);
4074 emit_thread_interrupt_checkpoint (mb);
4075 mono_mb_emit_byte (mb, CEE_RET);
4077 csig = mono_metadata_signature_dup (csig);
4079 res = mono_mb_create_and_cache (cache, method,
4080 mb, csig, csig->param_count + 16);
4087 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
4088 mono_method_get_marshal_info (method, mspecs);
4090 /* pinvoke: we need to convert the arguments if necessary */
4092 /* we copy the signature, so that we can set pinvoke to 0 */
4093 csig = mono_metadata_signature_dup (sig);
4096 /* we allocate local for use with emit_struct_conv() */
4097 /* allocate local 0 (pointer) src_ptr */
4098 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4099 /* allocate local 1 (pointer) dst_ptr */
4100 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4101 /* allocate local 2 (boolean) delete_old */
4102 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4104 /* delete_old = FALSE */
4105 mono_mb_emit_icon (mb, 0);
4106 mono_mb_emit_byte (mb, CEE_STLOC_2);
4108 if (!MONO_TYPE_IS_VOID(sig->ret)) {
4109 /* allocate local 3 to store the return value */
4110 mono_mb_add_local (mb, sig->ret);
4113 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
4114 /* Return type custom marshaling */
4116 * Since we can't determine the return type of the unmanaged function,
4117 * we assume it returns a pointer, and pass that pointer to
4118 * MarshalNativeToManaged.
4120 csig->ret = &mono_defaults.int_class->byval_arg;
4123 /* we first do all conversions */
4124 tmp_locals = alloca (sizeof (int) * sig->param_count);
4126 for (i = 0; i < sig->param_count; i ++) {
4127 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
4130 /* push all arguments */
4133 mono_mb_emit_byte (mb, CEE_LDARG_0);
4135 for (i = 0; i < sig->param_count; i++) {
4136 MonoType *t = sig->params [i];
4137 MonoMarshalSpec *spec = mspecs [i + 1];
4139 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY)))
4140 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
4142 argnum = i + sig->hasthis;
4145 case MONO_TYPE_BOOLEAN:
4147 g_assert (tmp_locals [i]);
4148 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4150 mono_mb_emit_ldarg (mb, argnum);
4165 mono_mb_emit_ldarg (mb, argnum);
4167 case MONO_TYPE_VALUETYPE:
4168 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
4170 case MONO_TYPE_STRING:
4171 case MONO_TYPE_CLASS:
4172 case MONO_TYPE_OBJECT:
4173 case MONO_TYPE_ARRAY:
4174 case MONO_TYPE_SZARRAY:
4175 g_assert (tmp_locals [i]);
4177 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4179 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4181 case MONO_TYPE_CHAR:
4182 /* fixme: dont know how to marshal that. We cant simply
4183 * convert it to a one byte UTF8 character, because an
4184 * unicode character may need more that one byte in UTF8 */
4185 mono_mb_emit_ldarg (mb, argnum);
4187 case MONO_TYPE_TYPEDBYREF:
4188 case MONO_TYPE_FNPTR:
4190 g_warning ("type 0x%02x unknown", t->type);
4191 g_assert_not_reached ();
4196 /* call the native method */
4197 mono_mb_emit_native_call (mb, csig, method->addr);
4199 /* Set LastError if needed */
4200 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
4201 MonoMethodSignature *lasterr_sig;
4203 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4204 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
4205 lasterr_sig->pinvoke = 1;
4207 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
4210 /* Ensure that we have marshalling info for the return */
4211 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
4213 /* convert the result */
4214 if (!sig->ret->byref) {
4215 MonoMarshalSpec *spec = mspecs [0];
4216 type = sig->ret->type;
4218 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
4219 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4224 case MONO_TYPE_VOID:
4239 /* no conversions necessary */
4240 mono_mb_emit_byte (mb, CEE_STLOC_3);
4242 case MONO_TYPE_BOOLEAN:
4243 /* maybe we need to make sure that it fits within 8 bits */
4244 mono_mb_emit_byte (mb, CEE_STLOC_3);
4246 case MONO_TYPE_VALUETYPE:
4247 klass = sig->ret->data.klass;
4248 if (klass->enumtype) {
4249 type = sig->ret->data.klass->enum_basetype->type;
4252 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4254 case MONO_TYPE_STRING:
4255 mono_mb_emit_byte (mb, CEE_STLOC_0);
4256 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4259 switch (spec->native) {
4260 case MONO_NATIVE_LPWSTR:
4261 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
4264 g_warning ("marshalling conversion not implemented");
4265 g_assert_not_reached ();
4268 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
4270 mono_mb_emit_byte (mb, CEE_STLOC_3);
4272 /* free the string */
4273 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4274 mono_mb_emit_icall (mb, g_free);
4276 case MONO_TYPE_CLASS:
4277 case MONO_TYPE_OBJECT:
4278 klass = sig->ret->data.klass;
4281 mono_mb_emit_byte (mb, CEE_STLOC_0);
4283 mono_mb_emit_byte (mb, CEE_LDNULL);
4284 mono_mb_emit_byte (mb, CEE_STLOC_3);
4287 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4288 mono_mb_emit_byte (mb, CEE_BRFALSE);
4290 mono_mb_emit_i4 (mb, 0);
4292 /* allocate result object */
4294 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4295 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4296 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4297 mono_mb_emit_byte (mb, CEE_STLOC_3);
4301 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4302 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4303 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4304 mono_mb_emit_icon (mb, sizeof (MonoObject));
4305 mono_mb_emit_byte (mb, CEE_ADD);
4306 mono_mb_emit_byte (mb, CEE_STLOC_1);
4308 /* emit conversion code */
4309 emit_struct_conv (mb, klass, TRUE);
4311 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4313 case MONO_TYPE_ARRAY:
4314 case MONO_TYPE_SZARRAY:
4315 /* fixme: we need conversions here */
4316 mono_mb_emit_byte (mb, CEE_STLOC_3);
4318 case MONO_TYPE_CHAR:
4319 /* fixme: we need conversions here */
4320 mono_mb_emit_byte (mb, CEE_STLOC_3);
4322 case MONO_TYPE_TYPEDBYREF:
4323 case MONO_TYPE_FNPTR:
4325 g_warning ("return type 0x%02x unknown", sig->ret->type);
4326 g_assert_not_reached ();
4330 mono_mb_emit_byte (mb, CEE_STLOC_3);
4334 * Need to call this after converting the result since MONO_VTADDR needs
4335 * to be adjacent to the call instruction.
4337 emit_thread_interrupt_checkpoint (mb);
4339 /* we need to convert byref arguments back and free string arrays */
4340 for (i = 0; i < sig->param_count; i++) {
4341 MonoType *t = sig->params [i];
4342 MonoMarshalSpec *spec = mspecs [i + 1];
4344 argnum = i + sig->hasthis;
4346 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
4347 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
4352 case MONO_TYPE_STRING:
4353 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4354 mono_mb_emit_ldarg (mb, argnum);
4355 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4356 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
4357 mono_mb_emit_byte (mb, CEE_STIND_I);
4359 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4360 mono_mb_emit_icall (mb, g_free);
4363 case MONO_TYPE_CLASS:
4364 case MONO_TYPE_OBJECT:
4365 if (t->data.klass == mono_defaults.stringbuilder_class) {
4367 MonoMarshalNative encoding;
4369 encoding = mono_marshal_get_ptr_to_stringbuilder_encoding (piinfo, spec, &need_free);
4371 g_assert (!t->byref);
4372 g_assert (encoding != -1);
4374 mono_mb_emit_ldarg (mb, argnum);
4375 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4377 mono_mb_emit_icall (mb, conv_to_icall (encoding));
4380 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4381 mono_mb_emit_icall (mb, g_free);
4386 if (!(t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)))
4389 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4390 /* allocate a new object */
4391 mono_mb_emit_ldarg (mb, argnum);
4392 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4393 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4394 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
4395 mono_mb_emit_byte (mb, CEE_STIND_I);
4398 /* dst = *argument */
4399 mono_mb_emit_ldarg (mb, argnum);
4402 mono_mb_emit_byte (mb, CEE_LDIND_I);
4404 mono_mb_emit_byte (mb, CEE_STLOC_1);
4406 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4407 mono_mb_emit_byte (mb, CEE_BRFALSE);
4409 mono_mb_emit_i4 (mb, 0);
4411 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4412 mono_mb_emit_icon (mb, sizeof (MonoObject));
4413 mono_mb_emit_byte (mb, CEE_ADD);
4414 mono_mb_emit_byte (mb, CEE_STLOC_1);
4416 /* src = tmp_locals [i] */
4417 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4418 mono_mb_emit_byte (mb, CEE_STLOC_0);
4420 /* emit valuetype conversion code */
4421 emit_struct_conv (mb, t->data.klass, TRUE);
4423 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4425 case MONO_TYPE_VALUETYPE:
4426 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
4428 case MONO_TYPE_SZARRAY:
4429 klass = mono_class_from_mono_type (t);
4431 if (klass->element_class == mono_defaults.string_class) {
4432 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
4433 g_assert (tmp_locals [i]);
4435 mono_mb_emit_ldarg (mb, argnum);
4437 mono_mb_emit_byte (mb, CEE_LDIND_I);
4438 mono_mb_emit_byte (mb, CEE_BRFALSE);
4440 mono_mb_emit_i4 (mb, 0);
4442 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4445 case MONO_NATIVE_LPWSTR:
4447 * The array elements point to the managed string data so
4448 * they don't need to be freed.
4450 mono_mb_emit_icall (mb, g_free);
4453 mono_mb_emit_ldarg (mb, argnum);
4455 mono_mb_emit_byte (mb, CEE_LDIND_I);
4456 mono_mb_emit_byte (mb, CEE_LDLEN);
4457 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_ARRAY));
4461 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4466 * FIXME: Need to convert data back but we don't know the
4467 * size of the array.
4471 /* Character arrays are implicitly marshalled as [Out] */
4472 if ((klass->element_class == mono_defaults.char_class) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4473 /* FIXME: Optimize blittable case */
4475 guint32 label1, label2, label3;
4476 int index_var, src_ptr, esize;
4478 eklass = klass->element_class;
4479 if (eklass == mono_defaults.stringbuilder_class)
4480 esize = sizeof (gpointer);
4482 esize = mono_class_native_size (eklass, NULL);
4483 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4486 mono_mb_emit_ldarg (mb, argnum);
4487 mono_mb_emit_byte (mb, CEE_BRFALSE);
4489 mono_mb_emit_i4 (mb, 0);
4491 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4492 mono_mb_emit_stloc (mb, src_ptr);
4494 /* Emit marshalling loop */
4495 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4496 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4497 mono_mb_emit_stloc (mb, index_var);
4499 mono_mb_emit_ldloc (mb, index_var);
4500 mono_mb_emit_ldarg (mb, argnum);
4501 mono_mb_emit_byte (mb, CEE_LDLEN);
4502 mono_mb_emit_byte (mb, CEE_BGE);
4504 mono_mb_emit_i4 (mb, 0);
4506 /* Emit marshalling code */
4508 if (eklass == mono_defaults.stringbuilder_class) {
4510 MonoMarshalNative encoding = mono_marshal_get_ptr_to_stringbuilder_encoding (piinfo, spec, &need_free);
4512 g_assert (encoding != -1);
4515 mono_mb_emit_ldarg (mb, argnum);
4516 mono_mb_emit_ldloc (mb, index_var);
4517 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4520 mono_mb_emit_ldloc (mb, src_ptr);
4521 mono_mb_emit_byte (mb, CEE_LDIND_I);
4523 mono_mb_emit_icall (mb, conv_to_icall (encoding));
4527 mono_mb_emit_ldloc (mb, src_ptr);
4528 mono_mb_emit_byte (mb, CEE_LDIND_I);
4530 mono_mb_emit_icall (mb, g_free);
4534 /* set the src_ptr */
4535 mono_mb_emit_ldloc (mb, src_ptr);
4536 mono_mb_emit_byte (mb, CEE_STLOC_0);
4539 mono_mb_emit_ldarg (mb, argnum);
4540 mono_mb_emit_ldloc (mb, index_var);
4541 mono_mb_emit_byte (mb, CEE_LDELEMA);
4542 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4543 mono_mb_emit_byte (mb, CEE_STLOC_1);
4545 /* emit valuetype conversion code */
4546 emit_struct_conv (mb, eklass, TRUE);
4549 mono_mb_emit_add_to_local (mb, index_var, 1);
4550 mono_mb_emit_add_to_local (mb, src_ptr, esize);
4552 mono_mb_emit_byte (mb, CEE_BR);
4553 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4555 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4556 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4559 case MONO_TYPE_BOOLEAN:
4562 mono_mb_emit_ldarg (mb, argnum);
4563 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4564 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4565 mono_mb_emit_byte (mb, CEE_NEG);
4566 mono_mb_emit_byte (mb, CEE_STIND_I1);
4570 if (!MONO_TYPE_IS_VOID(sig->ret))
4571 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4573 mono_mb_emit_byte (mb, CEE_RET);
4575 csig = mono_metadata_signature_dup (sig);
4577 res = mono_mb_create_and_cache (cache, method,
4578 mb, csig, csig->param_count + 16);
4581 for (i = sig->param_count; i >= 0; i--)
4582 g_free (mspecs [i]);
4585 /* 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)); */
4591 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4593 static MonoReflectionType *
4594 type_from_handle (MonoType *handle)
4596 MonoDomain *domain = mono_domain_get ();
4597 MonoClass *klass = mono_class_from_mono_type (handle);
4599 MONO_ARCH_SAVE_REGS;
4601 mono_class_init (klass);
4602 return mono_type_get_object (domain, handle);
4606 * mono_marshal_get_isinst:
4607 * @klass: the type of the field
4609 * This method generates a function which can be used to check if an object is
4610 * an instance of the given type, icluding the case where the object is a proxy.
4611 * The generated function has the following signature:
4612 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4615 mono_marshal_get_isinst (MonoClass *klass)
4617 static MonoMethodSignature *isint_sig = NULL;
4618 static GHashTable *isinst_hash = NULL;
4620 int pos_was_ok, pos_failed, pos_end, pos_end2;
4622 MonoMethodBuilder *mb;
4624 EnterCriticalSection (&marshal_mutex);
4626 isinst_hash = g_hash_table_new (NULL, NULL);
4628 res = g_hash_table_lookup (isinst_hash, klass);
4629 LeaveCriticalSection (&marshal_mutex);
4634 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4635 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4636 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4637 isint_sig->pinvoke = 0;
4640 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4641 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
4644 mb->method->save_lmf = 1;
4646 /* check if the object is a proxy that needs special cast */
4647 mono_mb_emit_ldarg (mb, 0);
4648 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4649 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4650 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4652 /* The result of MONO_ISINST can be:
4653 0) the type check succeeded
4654 1) the type check did not succeed
4655 2) a CanCastTo call is needed */
4657 mono_mb_emit_byte (mb, CEE_DUP);
4658 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4660 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4661 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4663 /* get the real proxy from the transparent proxy*/
4665 mono_mb_emit_ldarg (mb, 0);
4666 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4667 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4671 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4672 mono_mb_emit_byte (mb, CEE_LDNULL);
4673 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4677 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4678 mono_mb_emit_byte (mb, CEE_POP);
4679 mono_mb_emit_ldarg (mb, 0);
4683 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4684 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4685 mono_mb_emit_byte (mb, CEE_RET);
4687 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4694 * mono_marshal_get_castclass:
4695 * @klass: the type of the field
4697 * This method generates a function which can be used to cast an object to
4698 * an instance of the given type, icluding the case where the object is a proxy.
4699 * The generated function has the following signature:
4700 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4703 mono_marshal_get_castclass (MonoClass *klass)
4705 static MonoMethodSignature *castclass_sig = NULL;
4706 static GHashTable *castclass_hash = NULL;
4708 int pos_was_ok, pos_was_ok2;
4710 MonoMethodBuilder *mb;
4712 EnterCriticalSection (&marshal_mutex);
4713 if (!castclass_hash)
4714 castclass_hash = g_hash_table_new (NULL, NULL);
4716 res = g_hash_table_lookup (castclass_hash, klass);
4717 LeaveCriticalSection (&marshal_mutex);
4721 if (!castclass_sig) {
4722 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4723 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4724 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4725 castclass_sig->pinvoke = 0;
4728 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4729 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
4732 mb->method->save_lmf = 1;
4734 /* check if the object is a proxy that needs special cast */
4735 mono_mb_emit_ldarg (mb, 0);
4736 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4737 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4738 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4740 /* The result of MONO_ISINST can be:
4741 0) the cast is valid
4742 1) cast of unknown proxy type
4743 or an exception if the cast is is invalid
4746 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4748 /* get the real proxy from the transparent proxy*/
4750 mono_mb_emit_ldarg (mb, 0);
4751 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4752 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4755 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
4758 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4759 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
4760 mono_mb_emit_ldarg (mb, 0);
4763 mono_mb_emit_byte (mb, CEE_RET);
4765 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
4772 mono_marshal_get_proxy_cancast (MonoClass *klass)
4774 static MonoMethodSignature *from_handle_sig = NULL;
4775 static MonoMethodSignature *upgrade_proxy_sig = NULL;
4776 static MonoMethodSignature *isint_sig = NULL;
4777 static GHashTable *proxy_isinst_hash = NULL;
4779 int pos_failed, pos_end;
4781 MonoMethod *can_cast_to;
4782 MonoMethodDesc *desc;
4783 MonoMethodBuilder *mb;
4785 EnterCriticalSection (&marshal_mutex);
4786 if (!proxy_isinst_hash)
4787 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
4789 res = g_hash_table_lookup (proxy_isinst_hash, klass);
4790 LeaveCriticalSection (&marshal_mutex);
4795 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4796 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
4797 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
4798 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
4799 upgrade_proxy_sig->pinvoke = 1;
4801 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4802 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
4803 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
4805 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4806 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4807 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4808 isint_sig->pinvoke = 0;
4811 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
4812 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
4815 mb->method->save_lmf = 1;
4817 /* get the real proxy from the transparent proxy*/
4818 mono_mb_emit_ldarg (mb, 0);
4819 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4820 mono_mb_emit_byte (mb, CEE_LDIND_I);
4822 /* get the refletion type from the type handle */
4823 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4824 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4825 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4826 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4828 mono_mb_emit_ldarg (mb, 0);
4830 /* make the call to CanCastTo (type, ob) */
4831 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
4832 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
4833 g_assert (can_cast_to);
4834 mono_method_desc_free (desc);
4835 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4836 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
4839 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
4841 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
4842 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4843 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
4844 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
4845 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
4846 mono_mb_emit_ldarg (mb, 0);
4848 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
4849 emit_thread_interrupt_checkpoint (mb);
4851 mono_mb_emit_ldarg (mb, 0);
4852 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4856 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4857 mono_mb_emit_byte (mb, CEE_LDNULL);
4861 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4862 mono_mb_emit_byte (mb, CEE_RET);
4864 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4871 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
4874 klass = mono_class_from_mono_type (rtype->type);
4875 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
4876 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
4880 * mono_marshal_get_struct_to_ptr:
4883 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
4886 mono_marshal_get_struct_to_ptr (MonoClass *klass)
4888 MonoMethodBuilder *mb;
4889 static MonoMethod *stoptr = NULL;
4892 g_assert (klass != NULL);
4894 if (klass->str_to_ptr)
4895 return klass->str_to_ptr;
4898 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
4901 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
4903 if (klass->blittable) {
4904 mono_mb_emit_byte (mb, CEE_LDARG_1);
4905 mono_mb_emit_byte (mb, CEE_LDARG_0);
4906 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4907 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4908 mono_mb_emit_byte (mb, CEE_PREFIX1);
4909 mono_mb_emit_byte (mb, CEE_CPBLK);
4912 /* allocate local 0 (pointer) src_ptr */
4913 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4914 /* allocate local 1 (pointer) dst_ptr */
4915 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4916 /* allocate local 2 (boolean) delete_old */
4917 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4918 mono_mb_emit_byte (mb, CEE_LDARG_2);
4919 mono_mb_emit_byte (mb, CEE_STLOC_2);
4921 /* initialize src_ptr to point to the start of object data */
4922 mono_mb_emit_byte (mb, CEE_LDARG_0);
4923 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4924 mono_mb_emit_byte (mb, CEE_STLOC_0);
4926 /* initialize dst_ptr */
4927 mono_mb_emit_byte (mb, CEE_LDARG_1);
4928 mono_mb_emit_byte (mb, CEE_STLOC_1);
4930 emit_struct_conv (mb, klass, FALSE);
4933 mono_mb_emit_byte (mb, CEE_RET);
4935 res = mono_mb_create_method (mb, stoptr->signature, 0);
4938 klass->str_to_ptr = res;
4943 * mono_marshal_get_ptr_to_struct:
4946 * generates IL code for PtrToStructure (IntPtr src, object structure)
4949 mono_marshal_get_ptr_to_struct (MonoClass *klass)
4951 MonoMethodBuilder *mb;
4952 static MonoMethod *ptostr = NULL;
4955 g_assert (klass != NULL);
4957 if (klass->ptr_to_str)
4958 return klass->ptr_to_str;
4961 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
4964 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
4966 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
4967 mono_mb_emit_byte (mb, CEE_LDARG_1);
4968 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4969 mono_mb_emit_byte (mb, CEE_LDARG_0);
4970 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
4971 mono_mb_emit_byte (mb, CEE_PREFIX1);
4972 mono_mb_emit_byte (mb, CEE_CPBLK);
4975 /* allocate local 0 (pointer) src_ptr */
4976 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4977 /* allocate local 1 (pointer) dst_ptr */
4978 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4980 /* initialize src_ptr to point to the start of object data */
4981 mono_mb_emit_byte (mb, CEE_LDARG_0);
4982 mono_mb_emit_byte (mb, CEE_STLOC_0);
4984 /* initialize dst_ptr */
4985 mono_mb_emit_byte (mb, CEE_LDARG_1);
4986 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
4987 mono_mb_emit_byte (mb, CEE_STLOC_1);
4989 emit_struct_conv (mb, klass, TRUE);
4992 mono_mb_emit_byte (mb, CEE_RET);
4994 res = mono_mb_create_method (mb, ptostr->signature, 0);
4997 klass->ptr_to_str = res;
5002 * generates IL code for the synchronized wrapper: the generated method
5003 * calls METHOD while locking 'this' or the parent type.
5006 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
5008 static MonoMethodSignature *from_handle_sig = NULL;
5009 static MonoMethod *enter_method, *exit_method;
5010 MonoMethodSignature *sig;
5011 MonoExceptionClause *clause;
5012 MonoMethodHeader *header;
5013 MonoMethodBuilder *mb;
5016 int i, pos, this_local, ret_local;
5020 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
5023 cache = method->klass->image->synchronized_cache;
5024 if ((res = mono_marshal_find_in_cache (cache, method)))
5027 sig = method->signature;
5029 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
5032 if (!MONO_TYPE_IS_VOID (sig->ret))
5033 ret_local = mono_mb_add_local (mb, sig->ret);
5036 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5038 clause = g_new0 (MonoExceptionClause, 1);
5039 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
5041 if (!enter_method) {
5042 MonoMethodDesc *desc;
5044 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
5045 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
5046 g_assert (enter_method);
5047 mono_method_desc_free (desc);
5048 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
5049 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
5050 g_assert (exit_method);
5051 mono_method_desc_free (desc);
5054 * GetTypeFromHandle isn't called as a managed method because it has
5055 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
5056 * transformed into something else by the JIT.
5058 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5059 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
5060 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
5063 /* Push this or the type object */
5064 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
5065 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5066 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
5067 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
5068 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5071 mono_mb_emit_ldarg (mb, 0);
5072 mono_mb_emit_stloc (mb, this_local);
5074 /* Call Monitor::Enter() */
5075 mono_mb_emit_ldloc (mb, this_local);
5076 mono_mb_emit_managed_call (mb, enter_method, NULL);
5078 clause->try_offset = mb->pos;
5080 /* Call the method */
5082 mono_mb_emit_ldarg (mb, 0);
5083 for (i = 0; i < sig->param_count; i++)
5084 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
5085 mono_mb_emit_managed_call (mb, method, method->signature);
5086 if (!MONO_TYPE_IS_VOID (sig->ret))
5087 mono_mb_emit_stloc (mb, ret_local);
5089 mono_mb_emit_byte (mb, CEE_LEAVE);
5091 mono_mb_emit_i4 (mb, 0);
5093 clause->try_len = mb->pos - clause->try_offset;
5094 clause->handler_offset = mb->pos;
5096 /* Call Monitor::Exit() */
5097 mono_mb_emit_ldloc (mb, this_local);
5098 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
5099 mono_mb_emit_managed_call (mb, exit_method, NULL);
5100 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
5102 clause->handler_len = mb->pos - clause->handler_offset;
5104 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
5105 if (!MONO_TYPE_IS_VOID (sig->ret))
5106 mono_mb_emit_ldloc (mb, ret_local);
5107 mono_mb_emit_byte (mb, CEE_RET);
5109 res = mono_mb_create_and_cache (cache, method,
5110 mb, sig, sig->param_count + 16);
5113 header = ((MonoMethodNormal *)res)->header;
5114 header->num_clauses = 1;
5115 header->clauses = clause;
5121 mono_marshal_get_stelemref ()
5123 static MonoMethod* ret = NULL;
5124 MonoMethodSignature *sig;
5125 MonoMethodBuilder *mb;
5127 guint32 b1, b2, b3, b4;
5134 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
5137 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5139 /* void stelemref (void* array, int idx, void* value) */
5140 sig->ret = &mono_defaults.void_class->byval_arg;
5141 sig->params [0] = &mono_defaults.int_class->byval_arg;
5142 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
5143 sig->params [2] = &mono_defaults.int_class->byval_arg;
5145 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5146 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5154 aklass = array->vtable->klass->element_class;
5155 vklass = value->vtable->klass;
5157 if (vklass->idepth < aklass->idepth)
5160 if (vklass->supertypes [aklass->idepth - 1] != aklass)
5164 array [idx] = value;
5168 if (mono_object_isinst (value, aklass))
5171 throw new ArrayTypeMismatchException ();
5175 mono_mb_emit_ldarg (mb, 0);
5176 mono_mb_emit_ldarg (mb, 1);
5177 mono_mb_emit_byte (mb, CEE_LDELEMA);
5178 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.int_class));
5179 mono_mb_emit_byte (mb, CEE_POP);
5181 /* if (!value) goto do_store */
5182 mono_mb_emit_ldarg (mb, 2);
5183 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5185 /* aklass = array->vtable->klass->element_class */
5186 mono_mb_emit_ldarg (mb, 0);
5187 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
5188 mono_mb_emit_byte (mb, CEE_LDIND_I);
5189 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
5190 mono_mb_emit_byte (mb, CEE_LDIND_I);
5191 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
5192 mono_mb_emit_byte (mb, CEE_LDIND_I);
5193 mono_mb_emit_stloc (mb, aklass);
5195 /* vklass = value->vtable->klass */
5196 mono_mb_emit_ldarg (mb, 2);
5197 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
5198 mono_mb_emit_byte (mb, CEE_LDIND_I);
5199 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
5200 mono_mb_emit_byte (mb, CEE_LDIND_I);
5201 mono_mb_emit_stloc (mb, vklass);
5203 /* if (vklass->idepth < aklass->idepth) goto failue */
5204 mono_mb_emit_ldloc (mb, vklass);
5205 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5206 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5208 mono_mb_emit_ldloc (mb, aklass);
5209 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5210 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5212 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
5214 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
5215 mono_mb_emit_ldloc (mb, vklass);
5216 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
5217 mono_mb_emit_byte (mb, CEE_LDIND_I);
5219 mono_mb_emit_ldloc (mb, aklass);
5220 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5221 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5222 mono_mb_emit_icon (mb, 1);
5223 mono_mb_emit_byte (mb, CEE_SUB);
5224 mono_mb_emit_icon (mb, sizeof (void*));
5225 mono_mb_emit_byte (mb, CEE_MUL);
5226 mono_mb_emit_byte (mb, CEE_ADD);
5227 mono_mb_emit_byte (mb, CEE_LDIND_I);
5229 mono_mb_emit_ldloc (mb, aklass);
5231 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
5235 mono_mb_patch_addr (mb, b1, mb->pos - (b1 + 4));
5236 mono_mb_emit_ldarg (mb, 0);
5237 mono_mb_emit_ldarg (mb, 1);
5238 mono_mb_emit_ldarg (mb, 2);
5239 mono_mb_emit_byte (mb, CEE_STELEM_I);
5241 mono_mb_emit_byte (mb, CEE_RET);
5244 mono_mb_patch_addr (mb, b2, mb->pos - (b2 + 4));
5245 mono_mb_patch_addr (mb, b3, mb->pos - (b3 + 4));
5247 mono_mb_emit_ldarg (mb, 2);
5248 mono_mb_emit_ldloc (mb, aklass);
5249 mono_mb_emit_icall (mb, mono_object_isinst);
5251 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5252 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
5253 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
5255 mono_mb_emit_byte (mb, CEE_RET);
5256 ret = mono_mb_create_method (mb, sig, 4);
5260 /* FIXME: on win32 we should probably use GlobalAlloc(). */
5262 mono_marshal_alloc (gpointer size)
5266 MONO_ARCH_SAVE_REGS;
5268 if ((gulong)size == 0)
5269 /* This returns a valid pointer for size 0 on MS.NET */
5272 res = g_try_malloc ((gulong)size);
5274 mono_gc_out_of_memory ((gulong)size);
5280 mono_marshal_free (gpointer ptr)
5282 MONO_ARCH_SAVE_REGS;
5288 mono_marshal_free_array (gpointer *ptr, int size)
5295 for (i = 0; i < size; i++)
5301 mono_marshal_realloc (gpointer ptr, gpointer size)
5303 MONO_ARCH_SAVE_REGS;
5305 return g_try_realloc (ptr, (gulong)size);
5309 mono_marshal_string_array (MonoArray *array)
5317 len = mono_array_length (array);
5319 result = g_malloc (sizeof (char *) * (len + 1));
5320 for (i = 0; i < len; ++i) {
5321 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
5322 result [i] = s ? mono_string_to_utf8 (s): NULL;
5324 /* null terminate the array */
5331 mono_marshal_string_array_to_unicode (MonoArray *array)
5339 len = mono_array_length (array);
5341 result = g_malloc (sizeof (gunichar2 *) * (len + 1));
5342 for (i = 0; i < len; ++i) {
5343 MonoString *s = (MonoString *)mono_array_get (array, gpointer, i);
5344 result [i] = s ? mono_string_chars (s) : NULL;
5346 /* null terminate the array */
5353 * mono_marshal_set_last_error:
5355 * This function is invoked to set the last error value from a P/Invoke call
5356 * which has SetLastError set.
5359 mono_marshal_set_last_error (void)
5362 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
5364 TlsSetValue (last_error_tls_id, (gpointer)errno);
5369 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
5370 gpointer dest, gint32 length)
5375 MONO_ARCH_SAVE_REGS;
5377 MONO_CHECK_ARG_NULL (src);
5378 MONO_CHECK_ARG_NULL (dest);
5380 g_assert (src->obj.vtable->klass->rank == 1);
5381 g_assert (start_index >= 0);
5382 g_assert (length >= 0);
5383 g_assert (start_index + length <= mono_array_length (src));
5385 element_size = mono_array_element_size (src->obj.vtable->klass);
5387 source_addr = mono_array_addr_with_size (src, element_size, start_index);
5389 memcpy (dest, source_addr, length * element_size);
5393 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
5394 MonoArray *dest, gint32 length)
5399 MONO_ARCH_SAVE_REGS;
5401 MONO_CHECK_ARG_NULL (src);
5402 MONO_CHECK_ARG_NULL (dest);
5404 g_assert (dest->obj.vtable->klass->rank == 1);
5405 g_assert (start_index >= 0);
5406 g_assert (length >= 0);
5407 g_assert (start_index + length <= mono_array_length (dest));
5409 element_size = mono_array_element_size (dest->obj.vtable->klass);
5411 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
5413 memcpy (dest_addr, src, length * element_size);
5416 #if NO_UNALIGNED_ACCESS
5417 #define RETURN_UNALIGNED(type, addr) \
5420 memcpy(&val, p + offset, sizeof(val)); \
5423 #define WRITE_UNALIGNED(type, addr, val) \
5424 memcpy(addr, &val, sizeof(type))
5426 #define RETURN_UNALIGNED(type, addr) \
5427 return *(type*)(p + offset);
5428 #define WRITE_UNALIGNED(type, addr, val) \
5429 (*(type *)(addr) = (val))
5433 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
5437 MONO_ARCH_SAVE_REGS;
5439 RETURN_UNALIGNED(gpointer, p + offset);
5443 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
5447 MONO_ARCH_SAVE_REGS;
5449 return *(unsigned char*)(p + offset);
5453 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
5457 MONO_ARCH_SAVE_REGS;
5459 RETURN_UNALIGNED(gint16, p + offset);
5463 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
5467 MONO_ARCH_SAVE_REGS;
5469 RETURN_UNALIGNED(gint32, p + offset);
5473 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
5477 MONO_ARCH_SAVE_REGS;
5479 RETURN_UNALIGNED(gint64, p + offset);
5483 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
5487 MONO_ARCH_SAVE_REGS;
5489 *(unsigned char*)(p + offset) = val;
5493 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
5497 MONO_ARCH_SAVE_REGS;
5499 WRITE_UNALIGNED(gpointer, p + offset, val);
5503 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5507 MONO_ARCH_SAVE_REGS;
5509 WRITE_UNALIGNED(gint16, p + offset, val);
5513 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5517 MONO_ARCH_SAVE_REGS;
5519 WRITE_UNALIGNED(gint32, p + offset, val);
5523 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5527 MONO_ARCH_SAVE_REGS;
5529 WRITE_UNALIGNED(gint64, p + offset, val);
5533 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5535 MONO_ARCH_SAVE_REGS;
5538 return mono_string_new (mono_domain_get (), "");
5540 return mono_string_new (mono_domain_get (), ptr);
5544 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5546 MONO_ARCH_SAVE_REGS;
5549 return mono_string_new (mono_domain_get (), "");
5551 return mono_string_new_len (mono_domain_get (), ptr, len);
5555 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5557 MonoDomain *domain = mono_domain_get ();
5561 MONO_ARCH_SAVE_REGS;
5564 return mono_string_new (mono_domain_get (), "");
5569 return mono_string_new_utf16 (domain, ptr, len);
5573 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5575 MonoDomain *domain = mono_domain_get ();
5577 MONO_ARCH_SAVE_REGS;
5580 return mono_string_new (mono_domain_get (), "");
5582 return mono_string_new_utf16 (domain, ptr, len);
5586 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5588 MONO_ARCH_SAVE_REGS;
5590 g_warning ("PtrToStringBSTR not implemented");
5591 g_assert_not_reached ();
5597 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5599 MONO_ARCH_SAVE_REGS;
5601 return ((guint32)TlsGetValue (last_error_tls_id));
5605 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5611 MONO_ARCH_SAVE_REGS;
5613 MONO_CHECK_ARG_NULL (rtype);
5616 klass = mono_class_from_mono_type (type);
5617 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5619 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5623 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5624 exc = mono_get_exception_argument ("t", msg);
5626 mono_raise_exception (exc);
5630 return mono_class_native_size (klass, NULL);
5634 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5639 MONO_ARCH_SAVE_REGS;
5641 MONO_CHECK_ARG_NULL (obj);
5642 MONO_CHECK_ARG_NULL (dst);
5644 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5648 pa [2] = &delete_old;
5650 mono_runtime_invoke (method, NULL, pa, NULL);
5654 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5659 MONO_ARCH_SAVE_REGS;
5661 MONO_CHECK_ARG_NULL (src);
5662 MONO_CHECK_ARG_NULL (dst);
5664 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5669 mono_runtime_invoke (method, NULL, pa, NULL);
5673 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5675 MonoDomain *domain = mono_domain_get ();
5678 MONO_ARCH_SAVE_REGS;
5680 MONO_CHECK_ARG_NULL (src);
5681 MONO_CHECK_ARG_NULL (type);
5683 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5685 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5691 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5693 MonoMarshalType *info;
5696 int i, match_index = -1;
5698 MONO_ARCH_SAVE_REGS;
5700 MONO_CHECK_ARG_NULL (type);
5701 MONO_CHECK_ARG_NULL (field_name);
5703 fname = mono_string_to_utf8 (field_name);
5704 klass = mono_class_from_mono_type (type->type);
5706 while(klass && match_index == -1) {
5707 for (i = 0; i < klass->field.count; ++i) {
5708 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5714 if(match_index == -1)
5715 klass = klass->parent;
5720 if(match_index == -1) {
5724 /* Get back original class instance */
5725 klass = mono_class_from_mono_type (type->type);
5727 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5728 exc = mono_get_exception_argument ("fieldName", tmp);
5731 mono_raise_exception ((MonoException*)exc);
5734 info = mono_marshal_load_type_info (klass);
5735 return info->fields [match_index].offset;
5739 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5741 MONO_ARCH_SAVE_REGS;
5743 return mono_string_to_utf8 (string);
5747 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5749 MONO_ARCH_SAVE_REGS;
5754 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5758 mono_struct_delete_old (MonoClass *klass, char *ptr)
5760 MonoMarshalType *info;
5763 info = mono_marshal_load_type_info (klass);
5765 for (i = 0; i < info->num_fields; i++) {
5766 MonoMarshalNative ntype;
5767 MonoMarshalConv conv;
5768 MonoType *ftype = info->fields [i].field->type;
5771 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5774 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5775 klass->unicode, &conv);
5777 cpos = ptr + info->fields [i].offset;
5780 case MONO_MARSHAL_CONV_NONE:
5781 if (MONO_TYPE_ISSTRUCT (ftype)) {
5782 mono_struct_delete_old (ftype->data.klass, cpos);
5786 case MONO_MARSHAL_CONV_STR_LPWSTR:
5787 case MONO_MARSHAL_CONV_STR_LPSTR:
5788 case MONO_MARSHAL_CONV_STR_LPTSTR:
5789 case MONO_MARSHAL_CONV_STR_BSTR:
5790 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5791 case MONO_MARSHAL_CONV_STR_TBSTR:
5792 g_free (*(gpointer *)cpos);
5801 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
5805 MONO_ARCH_SAVE_REGS;
5807 MONO_CHECK_ARG_NULL (src);
5808 MONO_CHECK_ARG_NULL (type);
5810 klass = mono_class_from_mono_type (type->type);
5812 mono_struct_delete_old (klass, (char *)src);
5816 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
5818 /* FIXME: Call AllocCoTaskMem under windows */
5819 MONO_ARCH_SAVE_REGS;
5821 return g_try_malloc ((gulong)size);
5825 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
5827 /* FIXME: Call FreeCoTaskMem under windows */
5828 MONO_ARCH_SAVE_REGS;
5834 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
5836 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
5840 mono_marshal_load_type_info (MonoClass* klass)
5842 int i, j, count = 0, native_size = 0, min_align = 1;
5843 MonoMarshalType *info;
5846 g_assert (klass != NULL);
5848 if (klass->marshal_info)
5849 return klass->marshal_info;
5852 mono_class_init (klass);
5854 for (i = 0; i < klass->field.count; ++i) {
5855 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5857 if (mono_field_is_deleted (&klass->fields [i]))
5862 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
5864 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
5865 info->num_fields = count;
5867 /* Try to find a size for this type in metadata */
5868 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
5870 if (klass->parent) {
5871 int parent_size = mono_class_native_size (klass->parent, NULL);
5873 /* Add parent size to real size */
5874 native_size += parent_size;
5875 info->native_size = parent_size;
5878 for (j = i = 0; i < klass->field.count; ++i) {
5881 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
5884 if (mono_field_is_deleted (&klass->fields [i]))
5886 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
5887 mono_metadata_field_info (klass->image, klass->field.first + i,
5888 NULL, NULL, &info->fields [j].mspec);
5890 info->fields [j].field = &klass->fields [i];
5892 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
5893 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
5894 /* This field is a hack inserted by MCS to empty structures */
5899 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
5900 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
5901 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5902 &align, TRUE, klass->unicode);
5903 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5904 min_align = MAX (align, min_align);
5905 info->fields [j].offset = info->native_size;
5906 info->fields [j].offset += align - 1;
5907 info->fields [j].offset &= ~(align - 1);
5908 info->native_size = info->fields [j].offset + size;
5910 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
5911 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
5912 &align, TRUE, klass->unicode);
5913 align = klass->packing_size ? MIN (klass->packing_size, align): align;
5914 min_align = MAX (align, min_align);
5915 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
5916 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
5922 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5923 info->native_size = MAX (native_size, info->native_size);
5926 if (info->native_size & (min_align - 1)) {
5927 info->native_size += min_align - 1;
5928 info->native_size &= ~(min_align - 1);
5931 /* Update the class's blittable info, if the layouts don't match */
5932 if (info->native_size != mono_class_value_size (klass, NULL))
5933 klass->blittable = FALSE;
5935 /* If this is an array type, ensure that we have element info */
5936 if (klass->element_class) {
5937 mono_marshal_load_type_info (klass->element_class);
5940 return klass->marshal_info;
5944 * mono_class_native_size:
5947 * Returns: the native size of an object instance (when marshaled
5948 * to unmanaged code)
5951 mono_class_native_size (MonoClass *klass, guint32 *align)
5954 if (!klass->marshal_info)
5955 mono_marshal_load_type_info (klass);
5958 *align = klass->min_align;
5960 return klass->marshal_info->native_size;
5964 * mono_type_native_stack_size:
5965 * @t: the type to return the size it uses on the stack
5967 * Returns: the number of bytes required to hold an instance of this
5968 * type on the native stack
5971 mono_type_native_stack_size (MonoType *t, gint *align)
5975 g_assert (t != NULL);
5986 case MONO_TYPE_BOOLEAN:
5987 case MONO_TYPE_CHAR:
5996 case MONO_TYPE_STRING:
5997 case MONO_TYPE_OBJECT:
5998 case MONO_TYPE_CLASS:
5999 case MONO_TYPE_SZARRAY:
6001 case MONO_TYPE_FNPTR:
6002 case MONO_TYPE_ARRAY:
6003 case MONO_TYPE_TYPEDBYREF:
6014 case MONO_TYPE_VALUETYPE: {
6017 if (t->data.klass->enumtype)
6018 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
6020 size = mono_class_native_size (t->data.klass, align);
6021 *align = *align + 3;
6031 g_error ("type 0x%02x unknown", t->type);
6036 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
6037 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
6038 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
6039 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
6042 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
6043 gboolean as_field, gboolean unicode)
6045 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
6048 switch (native_type) {
6049 case MONO_NATIVE_BOOLEAN:
6052 case MONO_NATIVE_I1:
6053 case MONO_NATIVE_U1:
6056 case MONO_NATIVE_I2:
6057 case MONO_NATIVE_U2:
6058 case MONO_NATIVE_VARIANTBOOL:
6061 case MONO_NATIVE_I4:
6062 case MONO_NATIVE_U4:
6063 case MONO_NATIVE_ERROR:
6066 case MONO_NATIVE_I8:
6067 case MONO_NATIVE_U8:
6068 *align = ALIGNMENT(guint64);
6070 case MONO_NATIVE_R4:
6073 case MONO_NATIVE_R8:
6074 *align = ALIGNMENT(double);
6076 case MONO_NATIVE_INT:
6077 case MONO_NATIVE_UINT:
6078 case MONO_NATIVE_LPSTR:
6079 case MONO_NATIVE_LPWSTR:
6080 case MONO_NATIVE_LPTSTR:
6081 case MONO_NATIVE_BSTR:
6082 case MONO_NATIVE_ANSIBSTR:
6083 case MONO_NATIVE_TBSTR:
6084 case MONO_NATIVE_LPARRAY:
6085 case MONO_NATIVE_SAFEARRAY:
6086 case MONO_NATIVE_IUNKNOWN:
6087 case MONO_NATIVE_IDISPATCH:
6088 case MONO_NATIVE_INTERFACE:
6089 case MONO_NATIVE_ASANY:
6090 case MONO_NATIVE_FUNC:
6091 case MONO_NATIVE_LPSTRUCT:
6092 *align = ALIGNMENT(gpointer);
6093 return sizeof (gpointer);
6094 case MONO_NATIVE_STRUCT:
6095 klass = mono_class_from_mono_type (type);
6096 return mono_class_native_size (klass, align);
6097 case MONO_NATIVE_BYVALTSTR: {
6098 int esize = unicode ? 2: 1;
6101 return mspec->data.array_data.num_elem * esize;
6103 case MONO_NATIVE_BYVALARRAY: {
6105 klass = mono_class_from_mono_type (type);
6106 esize = mono_class_native_size (klass->element_class, align);
6108 return mspec->data.array_data.num_elem * esize;
6110 case MONO_NATIVE_CUSTOM:
6111 g_assert_not_reached ();
6113 case MONO_NATIVE_CURRENCY:
6114 case MONO_NATIVE_VBBYREFSTR:
6116 g_error ("native type %02x not implemented", native_type);
6119 g_assert_not_reached ();
6124 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
6132 t = &o->vtable->klass->byval_arg;
6139 case MONO_TYPE_BOOLEAN:
6142 case MONO_TYPE_CHAR:
6147 return mono_object_unbox (o);
6149 case MONO_TYPE_STRING:
6150 switch (string_encoding) {
6151 case MONO_NATIVE_LPWSTR:
6152 return mono_string_to_utf16 ((MonoString*)o);
6154 case MONO_NATIVE_LPSTR:
6155 return mono_string_to_utf8 ((MonoString*)o);
6158 g_warning ("marshaling conversion %d not implemented", string_encoding);
6159 g_assert_not_reached ();
6162 case MONO_TYPE_CLASS:
6163 case MONO_TYPE_VALUETYPE: {
6167 MonoBoolean delete_old = FALSE;
6169 klass = t->data.klass;
6171 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
6174 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6175 klass->blittable || klass->enumtype)
6176 return mono_object_unbox (o);
6178 res = g_malloc0 (mono_class_native_size (klass, NULL));
6180 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
6184 pa [2] = &delete_old;
6186 mono_runtime_invoke (method, NULL, pa, NULL);
6192 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
6198 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
6203 /* FIXME: Free embedded data as well */
6208 t = &o->vtable->klass->byval_arg;
6210 case MONO_TYPE_STRING:
6211 switch (string_encoding) {
6212 case MONO_NATIVE_LPWSTR:
6215 case MONO_NATIVE_LPSTR:
6219 g_warning ("marshaling conversion %d not implemented", string_encoding);
6220 g_assert_not_reached ();
6223 case MONO_TYPE_CLASS:
6224 case MONO_TYPE_VALUETYPE: {
6225 klass = t->data.klass;
6227 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6228 klass->blittable || klass->enumtype)