2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
14 #include "metadata/marshal.h"
15 #include "metadata/tabledefs.h"
16 #include "metadata/exception.h"
17 #include "metadata/appdomain.h"
18 #include "mono/metadata/debug-helpers.h"
19 #include "mono/metadata/threadpool.h"
20 #include "mono/metadata/threads.h"
21 #include "mono/metadata/monitor.h"
22 #include "mono/metadata/metadata-internals.h"
23 #include "mono/metadata/domain-internals.h"
24 #include "mono/metadata/gc-internal.h"
25 #include <mono/os/gc_wrapper.h>
29 /* #define DEBUG_RUNTIME_CODE */
31 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
35 #include "mono/cil/opcode.def"
40 struct _MonoMethodBuilder {
44 guint32 code_size, pos;
49 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
52 mono_find_method_by_name (MonoClass *klass, const char *name, int param_count)
54 MonoMethod *res = NULL;
57 mono_class_init (klass);
59 for (i = 0; i < klass->method.count; ++i) {
60 if (klass->methods [i]->name[0] == name [0] &&
61 !strcmp (name, klass->methods [i]->name) &&
62 klass->methods [i]->signature->param_count == param_count) {
63 res = klass->methods [i];
70 #ifdef DEBUG_RUNTIME_CODE
72 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
74 return g_strdup (" ");
77 static MonoDisHelper marshal_dh = {
87 /* This mutex protects the various marshalling related caches in MonoImage */
88 static CRITICAL_SECTION marshal_mutex;
90 /* Maps wrapper methods to the methods they wrap */
91 static MonoGHashTable *wrapper_hash;
93 static guint32 last_error_tls_id;
95 static void mono_struct_delete_old (MonoClass *klass, char *ptr);
96 void * mono_marshal_string_to_utf16 (MonoString *s);
98 static gpointer mono_string_to_lpstr (MonoString *string_obj);
101 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
103 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
105 mono_register_jit_icall (func, name, sig, save);
109 mono_marshal_init (void)
111 static gboolean module_initialized = FALSE;
113 if (!module_initialized) {
114 module_initialized = TRUE;
115 InitializeCriticalSection (&marshal_mutex);
116 MONO_GC_REGISTER_ROOT (wrapper_hash);
117 wrapper_hash = mono_g_hash_table_new (NULL, NULL);
118 last_error_tls_id = TlsAlloc ();
120 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
121 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
122 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
123 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
124 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
125 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
126 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
127 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
128 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
129 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
130 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
131 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
132 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
133 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
134 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32", FALSE);
135 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32", FALSE);
136 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
137 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
138 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
139 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
140 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
141 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
142 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
143 register_icall (g_free, "g_free", "void ptr", FALSE);
144 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
145 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
150 mono_delegate_to_ftnptr (MonoDelegate *delegate)
152 MonoMethod *method, *wrapper, *invoke;
153 MonoMarshalSpec **mspecs;
160 if (delegate->delegate_trampoline)
161 return delegate->delegate_trampoline;
163 klass = ((MonoObject *)delegate)->vtable->klass;
164 g_assert (klass->delegate);
166 method = delegate->method_info->method;
167 invoke = mono_find_method_by_name (klass, "Invoke", method->signature->param_count);
169 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
170 mono_method_get_marshal_info (invoke, mspecs);
172 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
174 for (i = invoke->signature->param_count; i >= 0; i--)
176 mono_metadata_free_marshal_spec (mspecs [i]);
179 delegate->delegate_trampoline = mono_compile_method (wrapper);
181 return delegate->delegate_trampoline;
185 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
190 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
192 ji = mono_jit_info_table_find (mono_domain_get (), ftn);
194 mono_raise_exception (mono_get_exception_argument ("", "Function pointer was not created by a Delegate."));
196 /* FIXME: discard the wrapper and call the original method */
197 mono_delegate_ctor ((MonoObject*)d, NULL, ftn);
203 mono_delegate_free_ftnptr (MonoDelegate *delegate)
208 ptr2 = delegate->delegate_trampoline;
210 ptr = InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
211 ji = mono_jit_info_table_find (mono_domain_get (), ptr);
214 if (!delegate->target) {
215 /* The wrapper method is shared between delegates -> no need to free it */
219 mono_runtime_free_method (ji->method);
223 mono_array_to_savearray (MonoArray *array)
228 g_assert_not_reached ();
233 mono_array_to_lparray (MonoArray *array)
238 /* fixme: maybe we need to make a copy */
239 return array->vector;
243 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
245 GError *error = NULL;
255 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
257 if (items_written > mono_stringbuilder_capacity (sb))
258 items_written = mono_stringbuilder_capacity (sb);
261 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
262 sb->length = items_written;
264 g_error_free (error);
270 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
277 g_assert (mono_string_chars (sb->str) == text);
279 for (len = 0; text [len] != 0; ++len)
286 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
288 GError *error = NULL;
295 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
297 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
299 g_error_free (error);
300 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
303 memcpy (res, tmp, sb->length + 1);
311 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
316 return mono_string_chars (sb->str);
320 mono_string_to_lpstr (MonoString *s)
322 #ifdef PLATFORM_WIN32
325 GError *error = NULL;
331 as = CoTaskMemAlloc (1);
336 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
338 g_warning (error->message);
339 g_error_free (error);
343 as = CoTaskMemAlloc (len + 1);
344 memcpy (as, tmp, len + 1);
348 return mono_string_to_utf8 (s);
353 mono_string_to_ansibstr (MonoString *string_obj)
355 g_error ("implement me");
360 mono_string_to_bstr (MonoString *string_obj)
362 g_error ("implement me");
367 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
372 g_assert (dst != NULL);
375 memset (dst, 0, size);
380 s = mono_string_to_utf8 (src);
381 len = MIN (size, strlen (s));
382 memcpy (dst, s, len);
385 *((char *)dst + size - 1) = 0;
389 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
393 g_assert (dst != NULL);
397 memset (dst, 0, size);
401 len = MIN (size, (mono_string_length (src) * 2));
402 memcpy (dst, mono_string_chars (src), len);
404 *((char *)dst + size - 1) = 0;
405 *((char *)dst + size - 2) = 0;
409 mono_mb_free (MonoMethodBuilder *mb)
411 g_list_free (mb->locals_list);
416 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
418 MonoMethodBuilder *mb;
421 g_assert (klass != NULL);
422 g_assert (name != NULL);
424 mb = g_new0 (MonoMethodBuilder, 1);
426 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
429 m->name = g_strdup (name);
431 m->inline_count = -1;
432 m->wrapper_type = type;
435 mb->code = g_malloc (mb->code_size);
441 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
443 int res = mb->locals;
445 g_assert (mb != NULL);
446 g_assert (type != NULL);
448 mb->locals_list = g_list_append (mb->locals_list, type);
455 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
457 MonoMethodHeader *header;
461 g_assert (mb != NULL);
463 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
464 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
469 header->max_stack = max_stack;
471 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
472 header->locals [i] = (MonoType *)l->data;
475 mb->method->signature = signature;
476 header->code = mb->code;
477 header->code_size = mb->pos;
478 header->num_locals = mb->locals;
480 #ifdef DEBUG_RUNTIME_CODE
481 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
482 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
489 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
491 MonoMethodWrapper *mw;
493 g_assert (mb != NULL);
495 mw = (MonoMethodWrapper *)mb->method;
497 mw->data = g_list_append (mw->data, data);
499 return g_list_length (mw->data);
503 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
505 mb->code [pos] = value & 0xff;
506 mb->code [pos + 1] = (value >> 8) & 0xff;
507 mb->code [pos + 2] = (value >> 16) & 0xff;
508 mb->code [pos + 3] = (value >> 24) & 0xff;
512 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
514 *((gint8 *)(&mb->code [pos])) = value;
518 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
520 if (mb->pos >= mb->code_size) {
522 mb->code = g_realloc (mb->code, mb->code_size);
525 mb->code [mb->pos++] = op;
529 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
531 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
532 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
535 mono_mb_emit_icon (mb, offset);
536 mono_mb_emit_byte (mb, CEE_ADD);
541 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
544 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
545 mono_mb_emit_byte (mb, CEE_LDIND_I);
546 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
547 mono_mb_emit_byte (mb, CEE_ADD);
548 mono_mb_emit_byte (mb, CEE_LDIND_I);
549 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
550 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
551 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
552 mono_mb_emit_byte (mb, branch_code);
554 mono_mb_emit_i4 (mb, 0);
559 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
561 if ((mb->pos + 4) >= mb->code_size) {
563 mb->code = g_realloc (mb->code, mb->code_size);
566 mono_mb_patch_addr (mb, mb->pos, data);
571 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
573 if ((mb->pos + 2) >= mb->code_size) {
575 mb->code = g_realloc (mb->code, mb->code_size);
578 mb->code [mb->pos] = data & 0xff;
579 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
584 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
586 mono_mb_emit_byte (mb, CEE_LDSTR);
587 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
592 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
595 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
596 } else if (argnum < 256) {
597 mono_mb_emit_byte (mb, CEE_LDARG_S);
598 mono_mb_emit_byte (mb, argnum);
600 mono_mb_emit_byte (mb, CEE_PREFIX1);
601 mono_mb_emit_byte (mb, CEE_LDARG);
602 mono_mb_emit_i2 (mb, argnum);
607 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
610 mono_mb_emit_byte (mb, CEE_LDARGA_S);
611 mono_mb_emit_byte (mb, argnum);
613 mono_mb_emit_byte (mb, CEE_PREFIX1);
614 mono_mb_emit_byte (mb, CEE_LDARGA);
615 mono_mb_emit_i2 (mb, argnum);
620 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
623 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
624 mono_mb_emit_byte (mb, locnum);
626 mono_mb_emit_byte (mb, CEE_PREFIX1);
627 mono_mb_emit_byte (mb, CEE_LDLOCA);
628 mono_mb_emit_i2 (mb, locnum);
633 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
636 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
637 } else if (num < 256) {
638 mono_mb_emit_byte (mb, CEE_LDLOC_S);
639 mono_mb_emit_byte (mb, num);
641 mono_mb_emit_byte (mb, CEE_PREFIX1);
642 mono_mb_emit_byte (mb, CEE_LDLOC);
643 mono_mb_emit_i2 (mb, num);
648 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
651 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
652 } else if (num < 256) {
653 mono_mb_emit_byte (mb, CEE_STLOC_S);
654 mono_mb_emit_byte (mb, num);
656 mono_mb_emit_byte (mb, CEE_PREFIX1);
657 mono_mb_emit_byte (mb, CEE_STLOC);
658 mono_mb_emit_i2 (mb, num);
663 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
665 if (value >= -1 && value < 8) {
666 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
667 } else if (value >= -128 && value <= 127) {
668 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
669 mono_mb_emit_byte (mb, value);
671 mono_mb_emit_byte (mb, CEE_LDC_I4);
672 mono_mb_emit_i4 (mb, value);
677 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
680 mono_mb_emit_byte (mb, op);
682 mono_mb_emit_i4 (mb, 0);
687 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
689 mono_mb_emit_byte (mb, CEE_CALLI);
690 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
694 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
696 mono_mb_emit_byte (mb, CEE_PREFIX1);
697 mono_mb_emit_byte (mb, CEE_LDFTN);
698 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
699 mono_mb_emit_calli (mb, opt_sig ? opt_sig : method->signature);
703 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
705 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
706 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
707 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
708 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
709 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
710 mono_mb_emit_calli (mb, sig);
711 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
712 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
716 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
718 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
719 mono_mb_emit_byte (mb, CEE_MONO_ICALL);
720 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
724 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
726 /* fixme: we need a better way to throw exception,
727 * supporting several exception types and messages */
728 MonoMethod *ctor = NULL;
730 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
732 mono_class_init (mme);
733 for (i = 0; i < mme->method.count; ++i) {
734 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
735 ctor = mme->methods [i];
740 mono_mb_emit_byte (mb, CEE_NEWOBJ);
741 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
743 mono_mb_emit_byte (mb, CEE_DUP);
744 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
745 mono_mb_emit_ldstr (mb, (char*)msg);
746 mono_mb_emit_byte (mb, CEE_STIND_I);
748 mono_mb_emit_byte (mb, CEE_THROW);
752 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
754 mono_mb_emit_ldloc (mb, local);
755 mono_mb_emit_icon (mb, incr);
756 mono_mb_emit_byte (mb, CEE_ADD);
757 mono_mb_emit_stloc (mb, local);
761 emit_ptr_to_str_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
762 int usize, int msize, MonoMarshalSpec *mspec)
765 case MONO_MARSHAL_CONV_BOOL_I4:
766 mono_mb_emit_byte (mb, CEE_LDLOC_1);
767 mono_mb_emit_byte (mb, CEE_LDLOC_0);
768 mono_mb_emit_byte (mb, CEE_LDIND_I4);
769 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
770 mono_mb_emit_byte (mb, 3);
771 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
772 mono_mb_emit_byte (mb, CEE_BR_S);
773 mono_mb_emit_byte (mb, 1);
774 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
775 mono_mb_emit_byte (mb, CEE_STIND_I1);
777 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
778 mono_mb_emit_byte (mb, CEE_LDLOC_1);
779 mono_mb_emit_byte (mb, CEE_LDLOC_0);
780 mono_mb_emit_byte (mb, CEE_LDIND_I2);
781 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
782 mono_mb_emit_byte (mb, 3);
783 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
784 mono_mb_emit_byte (mb, CEE_BR_S);
785 mono_mb_emit_byte (mb, 1);
786 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
787 mono_mb_emit_byte (mb, CEE_STIND_I1);
789 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
790 MonoClass *eclass = NULL;
793 if (type->type == MONO_TYPE_SZARRAY) {
794 eclass = type->data.klass;
796 g_assert_not_reached ();
799 if (eclass->valuetype)
800 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
802 esize = sizeof (gpointer);
804 /* create a new array */
805 mono_mb_emit_byte (mb, CEE_LDLOC_1);
806 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
807 mono_mb_emit_byte (mb, CEE_NEWARR);
808 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
809 mono_mb_emit_byte (mb, CEE_STIND_I);
811 /* copy the elements */
812 mono_mb_emit_byte (mb, CEE_LDLOC_1);
813 mono_mb_emit_byte (mb, CEE_LDIND_I);
814 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
815 mono_mb_emit_byte (mb, CEE_ADD);
816 mono_mb_emit_byte (mb, CEE_LDLOC_0);
817 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
818 mono_mb_emit_byte (mb, CEE_PREFIX1);
819 mono_mb_emit_byte (mb, CEE_CPBLK);
823 case MONO_MARSHAL_CONV_STR_BYVALSTR:
824 mono_mb_emit_byte (mb, CEE_LDLOC_1);
825 mono_mb_emit_byte (mb, CEE_LDLOC_0);
826 mono_mb_emit_icall (mb, mono_string_new_wrapper);
827 mono_mb_emit_byte (mb, CEE_STIND_I);
829 case MONO_MARSHAL_CONV_STR_LPTSTR:
830 case MONO_MARSHAL_CONV_STR_LPSTR:
831 mono_mb_emit_byte (mb, CEE_LDLOC_1);
832 mono_mb_emit_byte (mb, CEE_LDLOC_0);
833 mono_mb_emit_byte (mb, CEE_LDIND_I);
834 mono_mb_emit_icall (mb, mono_string_new_wrapper);
835 mono_mb_emit_byte (mb, CEE_STIND_I);
837 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
838 MonoClass *klass = mono_class_from_mono_type (type);
839 int src_var, dst_var;
841 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
842 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
844 /* *dst = new object */
845 mono_mb_emit_byte (mb, CEE_LDLOC_1);
846 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
847 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
848 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
849 mono_mb_emit_byte (mb, CEE_STIND_I);
851 /* save the old src pointer */
852 mono_mb_emit_byte (mb, CEE_LDLOC_0);
853 mono_mb_emit_stloc (mb, src_var);
854 /* save the old dst pointer */
855 mono_mb_emit_byte (mb, CEE_LDLOC_1);
856 mono_mb_emit_stloc (mb, dst_var);
858 /* dst = pointer to newly created object data */
859 mono_mb_emit_byte (mb, CEE_LDLOC_1);
860 mono_mb_emit_byte (mb, CEE_LDIND_I);
861 mono_mb_emit_icon (mb, sizeof (MonoObject));
862 mono_mb_emit_byte (mb, CEE_ADD);
863 mono_mb_emit_byte (mb, CEE_STLOC_1);
865 emit_struct_conv (mb, klass, TRUE);
867 /* restore the old src pointer */
868 mono_mb_emit_ldloc (mb, src_var);
869 mono_mb_emit_byte (mb, CEE_STLOC_0);
870 /* restore the old dst pointer */
871 mono_mb_emit_ldloc (mb, dst_var);
872 mono_mb_emit_byte (mb, CEE_STLOC_1);
875 case MONO_MARSHAL_CONV_DEL_FTN: {
876 /* fixme: we never convert functions back to delegates, dont
877 // know if thats the correct behaviour
881 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
882 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
884 case MONO_MARSHAL_CONV_STR_LPWSTR:
885 case MONO_MARSHAL_CONV_STR_BSTR:
886 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
887 case MONO_MARSHAL_CONV_STR_TBSTR:
888 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
889 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
891 g_warning ("marshaling conversion %d not implemented", conv);
892 g_assert_not_reached ();
897 conv_to_icall (MonoMarshalConv conv)
900 case MONO_MARSHAL_CONV_STR_LPWSTR:
901 return mono_marshal_string_to_utf16;
902 case MONO_MARSHAL_CONV_LPWSTR_STR:
903 return mono_string_from_utf16;
904 case MONO_MARSHAL_CONV_LPSTR_STR:
905 return mono_string_new_wrapper;
906 case MONO_MARSHAL_CONV_STR_LPTSTR:
907 case MONO_MARSHAL_CONV_STR_LPSTR:
908 return mono_string_to_lpstr;
909 case MONO_MARSHAL_CONV_STR_BSTR:
910 return mono_string_to_bstr;
911 case MONO_MARSHAL_CONV_STR_TBSTR:
912 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
913 return mono_string_to_ansibstr;
914 case MONO_MARSHAL_CONV_SB_LPSTR:
915 case MONO_MARSHAL_CONV_SB_LPTSTR:
916 return mono_string_builder_to_utf8;
917 case MONO_MARSHAL_CONV_SB_LPWSTR:
918 return mono_string_builder_to_utf16;
919 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
920 return mono_array_to_savearray;
921 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
922 return mono_array_to_lparray;
923 case MONO_MARSHAL_CONV_DEL_FTN:
924 return mono_delegate_to_ftnptr;
925 case MONO_MARSHAL_CONV_FTN_DEL:
926 return mono_ftnptr_to_delegate;
927 case MONO_MARSHAL_CONV_LPSTR_SB:
928 case MONO_MARSHAL_CONV_LPTSTR_SB:
929 return mono_string_utf8_to_builder;
930 case MONO_MARSHAL_CONV_LPWSTR_SB:
931 return mono_string_utf16_to_builder;
932 case MONO_MARSHAL_FREE_ARRAY:
933 return mono_marshal_free_array;
934 case MONO_MARSHAL_CONV_STR_BYVALSTR:
935 return mono_string_to_byvalstr;
936 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
937 return mono_string_to_byvalwstr;
939 g_assert_not_reached ();
946 emit_str_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
947 MonoMarshalSpec *mspec)
952 case MONO_MARSHAL_CONV_BOOL_I4:
953 mono_mb_emit_byte (mb, CEE_LDLOC_1);
954 mono_mb_emit_byte (mb, CEE_LDLOC_0);
955 mono_mb_emit_byte (mb, CEE_LDIND_U1);
956 mono_mb_emit_byte (mb, CEE_STIND_I4);
958 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
959 mono_mb_emit_byte (mb, CEE_LDLOC_1);
960 mono_mb_emit_byte (mb, CEE_LDLOC_0);
961 mono_mb_emit_byte (mb, CEE_LDIND_U1);
962 mono_mb_emit_byte (mb, CEE_NEG);
963 mono_mb_emit_byte (mb, CEE_STIND_I2);
965 case MONO_MARSHAL_CONV_STR_LPWSTR:
966 case MONO_MARSHAL_CONV_STR_LPSTR:
967 case MONO_MARSHAL_CONV_STR_LPTSTR:
968 case MONO_MARSHAL_CONV_STR_BSTR:
969 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
970 case MONO_MARSHAL_CONV_STR_TBSTR: {
973 /* free space if free == true */
974 mono_mb_emit_byte (mb, CEE_LDLOC_2);
975 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
977 mono_mb_emit_byte (mb, 0);
978 mono_mb_emit_byte (mb, CEE_LDLOC_1);
979 mono_mb_emit_byte (mb, CEE_LDIND_I);
980 mono_mb_emit_icall (mb, g_free);
981 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
983 mono_mb_emit_byte (mb, CEE_LDLOC_1);
984 mono_mb_emit_byte (mb, CEE_LDLOC_0);
985 mono_mb_emit_byte (mb, CEE_LDIND_I);
986 mono_mb_emit_icall (mb, conv_to_icall (conv));
987 mono_mb_emit_byte (mb, CEE_STIND_I);
990 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
991 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
992 case MONO_MARSHAL_CONV_DEL_FTN:
993 mono_mb_emit_byte (mb, CEE_LDLOC_1);
994 mono_mb_emit_byte (mb, CEE_LDLOC_0);
995 mono_mb_emit_byte (mb, CEE_LDIND_I);
996 mono_mb_emit_icall (mb, conv_to_icall (conv));
997 mono_mb_emit_byte (mb, CEE_STIND_I);
999 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1000 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1004 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
1005 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1006 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
1007 mono_mb_emit_icon (mb, usize);
1008 mono_mb_emit_icall (mb, conv_to_icall (conv));
1011 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1012 MonoClass *eclass = NULL;
1015 if (type->type == MONO_TYPE_SZARRAY) {
1016 eclass = type->data.klass;
1018 g_assert_not_reached ();
1021 if (eclass->valuetype)
1022 esize = mono_class_native_size (eclass, NULL);
1024 esize = sizeof (gpointer);
1029 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1030 mono_mb_emit_byte (mb, CEE_LDIND_I);
1031 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1033 mono_mb_emit_byte (mb, 0);
1035 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1036 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1037 mono_mb_emit_byte (mb, CEE_LDIND_I);
1038 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1039 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1040 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1041 mono_mb_emit_byte (mb, CEE_ADD);
1042 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1043 mono_mb_emit_byte (mb, CEE_PREFIX1);
1044 mono_mb_emit_byte (mb, CEE_CPBLK);
1045 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1048 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1049 int src_var, dst_var;
1051 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1052 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1054 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1055 mono_mb_emit_byte (mb, CEE_LDIND_I);
1056 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1058 mono_mb_emit_byte (mb, 0);
1060 /* save the old src pointer */
1061 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1062 mono_mb_emit_stloc (mb, src_var);
1063 /* save the old dst pointer */
1064 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1065 mono_mb_emit_stloc (mb, dst_var);
1067 /* src = pointer to object data */
1068 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1069 mono_mb_emit_byte (mb, CEE_LDIND_I);
1070 mono_mb_emit_icon (mb, sizeof (MonoObject));
1071 mono_mb_emit_byte (mb, CEE_ADD);
1072 mono_mb_emit_byte (mb, CEE_STLOC_0);
1074 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1076 /* restore the old src pointer */
1077 mono_mb_emit_ldloc (mb, src_var);
1078 mono_mb_emit_byte (mb, CEE_STLOC_0);
1079 /* restore the old dst pointer */
1080 mono_mb_emit_ldloc (mb, dst_var);
1081 mono_mb_emit_byte (mb, CEE_STLOC_1);
1083 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1087 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1088 MonoException *exc = mono_get_exception_not_implemented (msg);
1091 mono_raise_exception (exc);
1097 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1099 MonoMarshalType *info;
1103 emit_struct_conv(mb, klass->parent, to_object);
1105 info = mono_marshal_load_type_info (klass);
1107 if (info->native_size == 0)
1110 if (klass->blittable) {
1111 int msize = mono_class_value_size (klass, NULL);
1112 g_assert (msize == info->native_size);
1113 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1114 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1115 mono_mb_emit_icon (mb, msize);
1116 mono_mb_emit_byte (mb, CEE_PREFIX1);
1117 mono_mb_emit_byte (mb, CEE_CPBLK);
1119 mono_mb_emit_add_to_local (mb, 0, msize);
1120 mono_mb_emit_add_to_local (mb, 1, msize);
1124 for (i = 0; i < info->num_fields; i++) {
1125 MonoMarshalNative ntype;
1126 MonoMarshalConv conv;
1127 MonoType *ftype = info->fields [i].field->type;
1130 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1132 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1135 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1138 msize = klass->instance_size - info->fields [i].field->offset;
1139 usize = info->native_size - info->fields [i].offset;
1141 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1142 usize = info->fields [i + 1].offset - info->fields [i].offset;
1144 if ((msize < 0) || (usize < 0))
1145 /* This happens with GC aware auto layout */
1146 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
1148 g_assert ((msize >= 0) && (usize >= 0));
1151 case MONO_MARSHAL_CONV_NONE: {
1154 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1155 ftype->type == MONO_TYPE_U) {
1156 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1157 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1158 mono_mb_emit_byte (mb, CEE_LDIND_I);
1159 mono_mb_emit_byte (mb, CEE_STIND_I);
1168 #if SIZEOF_VOID_P == 4
1171 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1172 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1174 mono_mb_emit_byte (mb, CEE_STIND_I4);
1178 case MONO_TYPE_BOOLEAN:
1179 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1180 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1181 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1182 mono_mb_emit_byte (mb, CEE_STIND_I1);
1186 case MONO_TYPE_CHAR:
1187 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1188 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1189 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1190 mono_mb_emit_byte (mb, CEE_STIND_I2);
1194 #if SIZEOF_VOID_P == 8
1197 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1198 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1199 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1200 mono_mb_emit_byte (mb, CEE_STIND_I8);
1203 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1204 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1205 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1206 mono_mb_emit_byte (mb, CEE_STIND_R4);
1209 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1210 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1211 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1212 mono_mb_emit_byte (mb, CEE_STIND_R8);
1214 case MONO_TYPE_VALUETYPE:
1215 if (ftype->data.klass->enumtype) {
1216 t = ftype->data.klass->enum_basetype->type;
1219 emit_struct_conv (mb, ftype->data.klass, to_object);
1222 g_warning ("marshaling type %02x not implemented", ftype->type);
1223 g_assert_not_reached ();
1229 emit_ptr_to_str_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1231 emit_str_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1235 mono_mb_emit_add_to_local (mb, 0, usize);
1236 mono_mb_emit_add_to_local (mb, 1, msize);
1238 mono_mb_emit_add_to_local (mb, 0, msize);
1239 mono_mb_emit_add_to_local (mb, 1, usize);
1245 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1247 /* Call DestroyStructure */
1248 /* FIXME: Only do this if needed */
1249 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1250 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1251 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
1252 mono_mb_emit_ldloc (mb, struct_var);
1253 mono_mb_emit_icall (mb, mono_struct_delete_old);
1257 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1259 static MonoMethodSignature *state_check_sig = NULL;
1262 if (!state_check_sig) {
1263 state_check_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
1264 state_check_sig->ret = &mono_defaults.void_class->byval_arg;
1265 state_check_sig->pinvoke = 0;
1268 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1269 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1270 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1271 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1272 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1274 mono_mb_emit_native_call (mb, state_check_sig, mono_thread_interruption_checkpoint);
1276 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1279 static MonoAsyncResult *
1280 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1282 MonoMethodMessage *msg;
1283 MonoDelegate *async_callback;
1287 MonoMethod *method = NULL;
1290 g_assert (delegate);
1292 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1294 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1295 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1297 /* If the target is a proxy, make a direct call. Is proxy's work
1298 // to make the call asynchronous.
1300 MonoAsyncResult *ares;
1302 MonoArray *out_args;
1304 method = delegate->method_info->method;
1306 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1307 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1308 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1309 ares->async_delegate = (MonoObject *)delegate;
1310 ares->async_callback = (MonoObject *)async_callback;
1311 msg->async_result = ares;
1312 msg->call_type = CallType_BeginInvoke;
1314 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1319 klass = delegate->object.vtable->klass;
1321 method = mono_get_delegate_invoke (klass);
1322 for (i = 0; i < klass->method.count; ++i) {
1323 if (klass->methods [i]->name[0] == 'B' &&
1324 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1325 method = klass->methods [i];
1330 g_assert (method != NULL);
1332 im = mono_get_delegate_invoke (method->klass);
1333 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1335 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1339 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1341 int i, params_var, tmp_var;
1343 /* allocate local (pointer) *params[] */
1344 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1345 /* allocate local (pointer) tmp */
1346 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1348 /* alloate space on stack to store an array of pointers to the arguments */
1349 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1350 mono_mb_emit_byte (mb, CEE_PREFIX1);
1351 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1352 mono_mb_emit_stloc (mb, params_var);
1355 mono_mb_emit_ldloc (mb, params_var);
1356 mono_mb_emit_stloc (mb, tmp_var);
1358 if (save_this && sig->hasthis) {
1359 mono_mb_emit_ldloc (mb, tmp_var);
1360 mono_mb_emit_ldarg_addr (mb, 0);
1361 mono_mb_emit_byte (mb, CEE_STIND_I);
1362 /* tmp = tmp + sizeof (gpointer) */
1363 if (sig->param_count)
1364 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1368 for (i = 0; i < sig->param_count; i++) {
1369 mono_mb_emit_ldloc (mb, tmp_var);
1370 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1371 mono_mb_emit_byte (mb, CEE_STIND_I);
1372 /* tmp = tmp + sizeof (gpointer) */
1373 if (i < (sig->param_count - 1))
1374 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1381 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1385 GString *res = g_string_new ("");
1388 g_string_append (res, prefix);
1389 g_string_append_c (res, '_');
1392 mono_type_get_desc (res, sig->ret, FALSE);
1394 for (i = 0; i < sig->param_count; ++i) {
1395 g_string_append_c (res, '_');
1396 mono_type_get_desc (res, sig->params [i], FALSE);
1399 g_string_free (res, FALSE);
1404 * mono_marshal_get_string_encoding:
1406 * Return the string encoding which should be used for a given parameter.
1408 static MonoMarshalNative
1409 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1411 /* First try the parameter marshal info */
1413 if (spec->native == MONO_NATIVE_LPARRAY) {
1414 if (spec->data.array_data.elem_type != 0)
1415 return spec->data.array_data.elem_type;
1418 return spec->native;
1422 return MONO_NATIVE_LPSTR;
1424 /* Then try the method level marshal info */
1425 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1426 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1427 return MONO_NATIVE_LPSTR;
1428 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1429 return MONO_NATIVE_LPWSTR;
1430 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1431 return MONO_NATIVE_LPTSTR;
1433 return MONO_NATIVE_LPSTR;
1437 static MonoMarshalConv
1438 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1440 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1443 case MONO_NATIVE_LPWSTR:
1444 return MONO_MARSHAL_CONV_STR_LPWSTR;
1445 case MONO_NATIVE_LPSTR:
1446 return MONO_MARSHAL_CONV_STR_LPSTR;
1447 case MONO_NATIVE_LPTSTR:
1448 return MONO_MARSHAL_CONV_STR_LPTSTR;
1454 static MonoMarshalConv
1455 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1457 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1460 case MONO_NATIVE_LPWSTR:
1461 return MONO_MARSHAL_CONV_SB_LPWSTR;
1463 case MONO_NATIVE_LPSTR:
1464 return MONO_MARSHAL_CONV_SB_LPSTR;
1466 case MONO_NATIVE_LPTSTR:
1467 return MONO_MARSHAL_CONV_SB_LPTSTR;
1474 static MonoMarshalConv
1475 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
1477 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1482 case MONO_NATIVE_LPWSTR:
1484 * mono_string_builder_to_utf16 does not allocate a
1485 * new buffer, so no need to free it.
1488 return MONO_MARSHAL_CONV_LPWSTR_SB;
1489 case MONO_NATIVE_LPSTR:
1490 return MONO_MARSHAL_CONV_LPSTR_SB;
1492 case MONO_NATIVE_LPTSTR:
1493 return MONO_MARSHAL_CONV_LPTSTR_SB;
1501 * Return whenever a field of a native structure or an array member needs to
1505 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1507 MonoMarshalNative encoding;
1508 MonoMarshalConv conv;
1511 case MONO_TYPE_VALUETYPE:
1512 /* FIXME: Optimize this */
1514 case MONO_TYPE_OBJECT:
1515 case MONO_TYPE_CLASS:
1516 if (t->data.klass == mono_defaults.stringbuilder_class) {
1518 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
1522 case MONO_TYPE_STRING:
1523 encoding = mono_marshal_get_string_encoding (piinfo, spec);
1524 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
1530 static inline MonoMethod*
1531 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1535 EnterCriticalSection (&marshal_mutex);
1536 res = g_hash_table_lookup (cache, key);
1537 LeaveCriticalSection (&marshal_mutex);
1541 /* Create the method from the builder and place it in the cache */
1542 static inline MonoMethod*
1543 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1544 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1549 EnterCriticalSection (&marshal_mutex);
1550 res = g_hash_table_lookup (cache, key);
1552 /* This does not acquire any locks */
1553 res = mono_mb_create_method (mb, sig, max_stack);
1554 g_hash_table_insert (cache, key, res);
1555 mono_g_hash_table_insert (wrapper_hash, res, key);
1558 /* Somebody created it before us */
1560 LeaveCriticalSection (&marshal_mutex);
1566 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1570 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1573 EnterCriticalSection (&marshal_mutex);
1574 res = mono_g_hash_table_lookup (wrapper_hash, wrapper);
1575 LeaveCriticalSection (&marshal_mutex);
1577 if (res && wrapper->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1578 /* See mono_marshal_get_remoting_invoke_with_check */
1579 return (MonoMethod*)((char*)res - 1);
1585 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1587 MonoMethodSignature *sig;
1588 static MonoMethodSignature *csig = NULL;
1589 MonoMethodBuilder *mb;
1595 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1596 !strcmp (method->name, "BeginInvoke"));
1598 sig = method->signature;
1600 cache = method->klass->image->delegate_begin_invoke_cache;
1601 if ((res = mono_marshal_find_in_cache (cache, sig)))
1604 g_assert (sig->hasthis);
1607 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1609 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1610 csig->ret = &mono_defaults.object_class->byval_arg;
1611 csig->params [0] = &mono_defaults.object_class->byval_arg;
1612 csig->params [1] = &mono_defaults.int_class->byval_arg;
1615 name = mono_signature_to_name (sig, "begin_invoke");
1616 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1619 mb->method->save_lmf = 1;
1621 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1623 mono_mb_emit_ldarg (mb, 0);
1624 mono_mb_emit_ldloc (mb, params_var);
1625 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1626 emit_thread_interrupt_checkpoint (mb);
1627 mono_mb_emit_byte (mb, CEE_RET);
1629 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1635 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1637 MonoDomain *domain = mono_domain_get ();
1638 MonoAsyncResult *ares;
1639 MonoMethod *method = NULL;
1640 MonoMethodSignature *sig;
1641 MonoMethodMessage *msg;
1642 MonoObject *res, *exc;
1643 MonoArray *out_args;
1647 g_assert (delegate);
1649 if (!delegate->method_info || !delegate->method_info->method)
1650 g_assert_not_reached ();
1652 klass = delegate->object.vtable->klass;
1654 for (i = 0; i < klass->method.count; ++i) {
1655 if (klass->methods [i]->name[0] == 'E' &&
1656 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1657 method = klass->methods [i];
1662 g_assert (method != NULL);
1664 sig = method->signature;
1666 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1668 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1671 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1672 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1673 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1674 mono_message_init (domain, msg, delegate->method_info, NULL);
1675 msg->call_type = CallType_EndInvoke;
1676 msg->async_result = ares;
1677 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1680 res = mono_thread_pool_finish (ares, &out_args, &exc);
1683 if (((MonoException*)exc)->stack_trace) {
1684 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1686 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1688 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1691 mono_raise_exception ((MonoException*)exc);
1694 mono_method_return_message_restore (method, params, out_args);
1699 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1701 if (return_type->byref)
1702 return_type = &mono_defaults.int_class->byval_arg;
1703 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1704 return_type = return_type->data.klass->enum_basetype;
1706 switch (return_type->type) {
1707 case MONO_TYPE_VOID:
1708 g_assert_not_reached ();
1711 case MONO_TYPE_STRING:
1712 case MONO_TYPE_CLASS:
1713 case MONO_TYPE_OBJECT:
1714 case MONO_TYPE_ARRAY:
1715 case MONO_TYPE_SZARRAY:
1719 case MONO_TYPE_BOOLEAN:
1720 mono_mb_emit_byte (mb, CEE_UNBOX);
1721 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1722 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1725 mono_mb_emit_byte (mb, CEE_UNBOX);
1726 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1727 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1730 case MONO_TYPE_CHAR:
1731 mono_mb_emit_byte (mb, CEE_UNBOX);
1732 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1733 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1736 mono_mb_emit_byte (mb, CEE_UNBOX);
1737 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1738 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1742 mono_mb_emit_byte (mb, CEE_UNBOX);
1743 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1744 mono_mb_emit_byte (mb, CEE_LDIND_I);
1747 mono_mb_emit_byte (mb, CEE_UNBOX);
1748 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1749 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1752 mono_mb_emit_byte (mb, CEE_UNBOX);
1753 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1754 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1758 mono_mb_emit_byte (mb, CEE_UNBOX);
1759 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1760 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1763 mono_mb_emit_byte (mb, CEE_UNBOX);
1764 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1765 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1768 mono_mb_emit_byte (mb, CEE_UNBOX);
1769 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1770 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1772 case MONO_TYPE_VALUETYPE: {
1774 mono_mb_emit_byte (mb, CEE_UNBOX);
1775 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1776 mono_mb_emit_i4 (mb, class);
1777 mono_mb_emit_byte (mb, CEE_LDOBJ);
1778 mono_mb_emit_i4 (mb, class);
1782 g_warning ("type 0x%x not handled", return_type->type);
1783 g_assert_not_reached ();
1786 mono_mb_emit_byte (mb, CEE_RET);
1790 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
1792 MonoMethodSignature *sig;
1793 static MonoMethodSignature *csig = NULL;
1794 MonoMethodBuilder *mb;
1800 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1801 !strcmp (method->name, "EndInvoke"));
1803 sig = method->signature;
1805 cache = method->klass->image->delegate_end_invoke_cache;
1806 if ((res = mono_marshal_find_in_cache (cache, sig)))
1809 g_assert (sig->hasthis);
1812 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1814 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
1815 csig->ret = &mono_defaults.object_class->byval_arg;
1816 csig->params [0] = &mono_defaults.object_class->byval_arg;
1817 csig->params [1] = &mono_defaults.int_class->byval_arg;
1820 name = mono_signature_to_name (sig, "end_invoke");
1821 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
1824 mb->method->save_lmf = 1;
1826 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1828 mono_mb_emit_ldarg (mb, 0);
1829 mono_mb_emit_ldloc (mb, params_var);
1830 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
1831 emit_thread_interrupt_checkpoint (mb);
1833 if (sig->ret->type == MONO_TYPE_VOID) {
1834 mono_mb_emit_byte (mb, CEE_POP);
1835 mono_mb_emit_byte (mb, CEE_RET);
1837 mono_mb_emit_restore_result (mb, sig->ret);
1839 res = mono_mb_create_and_cache (cache, sig,
1840 mb, sig, sig->param_count + 16);
1847 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
1849 MonoMethodMessage *msg;
1850 MonoTransparentProxy *this;
1851 MonoObject *res, *exc;
1852 MonoArray *out_args;
1854 this = *((MonoTransparentProxy **)params [0]);
1857 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
1859 /* skip the this pointer */
1862 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
1865 MonoMethodSignature *sig = method->signature;
1866 int count = sig->param_count;
1867 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
1869 for (i=0; i<count; i++) {
1870 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
1871 if (class->valuetype) {
1872 if (sig->params [i]->byref)
1873 mparams[i] = *((gpointer *)params [i]);
1875 mparams[i] = params [i];
1877 mparams[i] = *((gpointer**)params [i]);
1881 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
1884 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1886 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
1889 mono_raise_exception ((MonoException *)exc);
1891 mono_method_return_message_restore (method, params, out_args);
1897 mono_marshal_get_remoting_invoke (MonoMethod *method)
1899 MonoMethodSignature *sig;
1900 static MonoMethodSignature *csig = NULL;
1901 MonoMethodBuilder *mb;
1908 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE)
1911 sig = method->signature;
1913 /* we cant remote methods without this pointer */
1917 cache = method->klass->image->remoting_invoke_cache;
1918 if ((res = mono_marshal_find_in_cache (cache, method)))
1922 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
1923 csig->params [0] = &mono_defaults.int_class->byval_arg;
1924 csig->params [1] = &mono_defaults.int_class->byval_arg;
1925 csig->ret = &mono_defaults.object_class->byval_arg;
1929 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
1930 mb->method->save_lmf = 1;
1932 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
1934 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1935 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1936 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
1937 mono_mb_emit_ldloc (mb, params_var);
1938 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
1939 emit_thread_interrupt_checkpoint (mb);
1941 if (sig->ret->type == MONO_TYPE_VOID) {
1942 mono_mb_emit_byte (mb, CEE_POP);
1943 mono_mb_emit_byte (mb, CEE_RET);
1945 mono_mb_emit_restore_result (mb, sig->ret);
1948 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1955 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1957 MonoMethodSignature *sig;
1958 MonoMethodBuilder *mb;
1959 MonoMethod *res, *native;
1965 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1968 sig = method->signature;
1970 /* we cant remote methods without this pointer */
1971 g_assert (sig->hasthis);
1973 cache = method->klass->image->remoting_invoke_cache;
1974 if ((res = mono_marshal_find_in_cache (cache, (char *)method + 1)))
1977 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1979 mono_mb_emit_ldarg (mb, 0);
1980 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1982 native = mono_marshal_get_remoting_invoke (method);
1984 for (i = 0; i <= sig->param_count; i++)
1985 mono_mb_emit_ldarg (mb, i);
1987 mono_mb_emit_managed_call (mb, native, native->signature);
1988 mono_mb_emit_byte (mb, CEE_RET);
1990 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
1992 for (i = 0; i <= sig->param_count; i++)
1993 mono_mb_emit_ldarg (mb, i);
1995 mono_mb_emit_managed_call (mb, method, method->signature);
1996 mono_mb_emit_byte (mb, CEE_RET);
1998 res = mono_mb_create_and_cache (cache, (char*)method + 1,
1999 mb, sig, sig->param_count + 16);
2006 * the returned method invokes all methods in a multicast delegate
2009 mono_marshal_get_delegate_invoke (MonoMethod *method)
2011 MonoMethodSignature *sig, *static_sig;
2013 MonoMethodBuilder *mb;
2019 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2020 !strcmp (method->name, "Invoke"));
2022 sig = method->signature;
2024 cache = method->klass->image->delegate_invoke_cache;
2025 if ((res = mono_marshal_find_in_cache (cache, sig)))
2028 static_sig = mono_metadata_signature_dup (sig);
2029 static_sig->hasthis = 0;
2031 name = mono_signature_to_name (sig, "invoke");
2032 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
2035 /* allocate local 0 (object) */
2036 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2038 g_assert (sig->hasthis);
2042 * prev.Invoke( args .. );
2043 * return this.<target>( args .. );
2046 /* this wrapper can be used in unmanaged-managed transitions */
2047 emit_thread_interrupt_checkpoint (mb);
2049 /* get this->prev */
2050 mono_mb_emit_ldarg (mb, 0);
2051 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
2052 mono_mb_emit_byte (mb, CEE_LDIND_I );
2053 mono_mb_emit_stloc (mb, 0);
2055 /* if prev != null */
2056 mono_mb_emit_ldloc (mb, 0);
2057 mono_mb_emit_byte (mb, CEE_BRFALSE);
2060 mono_mb_emit_i4 (mb, 0);
2063 mono_mb_emit_ldloc (mb, 0);
2064 for (i = 0; i < sig->param_count; i++)
2065 mono_mb_emit_ldarg (mb, i + 1);
2066 mono_mb_emit_managed_call (mb, method, method->signature);
2067 if (sig->ret->type != MONO_TYPE_VOID)
2068 mono_mb_emit_byte (mb, CEE_POP);
2070 /* continued or prev == null */
2071 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2073 /* get this->target */
2074 mono_mb_emit_ldarg (mb, 0);
2075 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
2076 mono_mb_emit_byte (mb, CEE_LDIND_I );
2077 mono_mb_emit_stloc (mb, 0);
2079 /* if target != null */
2080 mono_mb_emit_ldloc (mb, 0);
2081 mono_mb_emit_byte (mb, CEE_BRFALSE);
2083 mono_mb_emit_i4 (mb, 0);
2085 /* then call this->method_ptr nonstatic */
2086 mono_mb_emit_ldloc (mb, 0);
2087 for (i = 0; i < sig->param_count; ++i)
2088 mono_mb_emit_ldarg (mb, i + 1);
2089 mono_mb_emit_ldarg (mb, 0);
2090 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
2091 mono_mb_emit_byte (mb, CEE_LDIND_I );
2092 mono_mb_emit_byte (mb, CEE_CALLI);
2093 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
2095 mono_mb_emit_byte (mb, CEE_BR);
2097 mono_mb_emit_i4 (mb, 0);
2099 /* else [target == null] call this->method_ptr static */
2100 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
2102 for (i = 0; i < sig->param_count; ++i)
2103 mono_mb_emit_ldarg (mb, i + 1);
2104 mono_mb_emit_ldarg (mb, 0);
2105 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
2106 mono_mb_emit_byte (mb, CEE_LDIND_I );
2107 mono_mb_emit_byte (mb, CEE_CALLI);
2108 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
2111 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
2112 mono_mb_emit_byte (mb, CEE_RET);
2114 res = mono_mb_create_and_cache (cache, sig,
2115 mb, sig, sig->param_count + 16);
2122 * signature_dup_add_this:
2124 * Make a copy of @sig, adding an explicit this argument.
2126 static MonoMethodSignature*
2127 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
2129 MonoMethodSignature *res;
2132 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
2133 memcpy (res, sig, sizeof (MonoMethodSignature));
2134 res->param_count = sig->param_count + 1;
2135 res->hasthis = FALSE;
2136 for (i = sig->param_count - 1; i >= 0; i --)
2137 res->params [i + 1] = sig->params [i];
2138 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
2145 MonoMethodSignature *sig;
2149 * generates IL code for the runtime invoke function
2150 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
2152 * we also catch exceptions if exc != null
2155 mono_marshal_get_runtime_invoke (MonoMethod *method)
2157 MonoMethodSignature *sig, *csig, *callsig;
2158 MonoExceptionClause *clause;
2159 MonoMethodHeader *header;
2160 MonoMethodBuilder *mb;
2161 GHashTable *cache = NULL;
2162 MonoClass *target_klass;
2163 MonoMethod *res = NULL;
2165 static MonoString *string_dummy = NULL;
2171 target_klass = method->klass;
2173 EnterCriticalSection (&marshal_mutex);
2175 if (method->string_ctor) {
2176 static GSList *strsig_list = NULL;
2180 for (item = strsig_list; item; item = item->next) {
2182 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
2188 callsig = mono_metadata_signature_dup (method->signature);
2189 callsig->ret = &mono_defaults.string_class->byval_arg;
2190 cs = g_new (CtorSigPair, 1);
2193 strsig_list = g_slist_prepend (strsig_list, cs);
2196 if (method->klass->valuetype && method->signature->hasthis) {
2198 * Valuetype methods receive a managed pointer as the this argument.
2199 * Create a new signature to reflect this.
2201 callsig = signature_dup_add_this (method->signature, method->klass);
2204 callsig = method->signature;
2207 cache = method->klass->image->runtime_invoke_cache;
2209 /* from mono_marshal_find_in_cache */
2210 res = g_hash_table_lookup (cache, callsig);
2211 LeaveCriticalSection (&marshal_mutex);
2217 target_klass = mono_defaults.object_class;
2219 /* to make it work with our special string constructors */
2220 if (!string_dummy) {
2221 MONO_GC_REGISTER_ROOT (string_dummy);
2222 string_dummy = mono_string_new_wrapper ("dummy");
2225 sig = method->signature;
2227 csig = mono_metadata_signature_alloc (method->klass->image, 4);
2229 csig->ret = &mono_defaults.object_class->byval_arg;
2230 if (method->klass->valuetype && method->signature->hasthis)
2231 csig->params [0] = callsig->params [0];
2233 csig->params [0] = &mono_defaults.object_class->byval_arg;
2234 csig->params [1] = &mono_defaults.int_class->byval_arg;
2235 csig->params [2] = &mono_defaults.int_class->byval_arg;
2236 csig->params [3] = &mono_defaults.int_class->byval_arg;
2238 name = mono_signature_to_name (callsig, "runtime_invoke");
2239 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
2242 /* allocate local 0 (object) tmp */
2243 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2244 /* allocate local 1 (object) exc */
2245 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2247 /* cond set *exc to null */
2248 mono_mb_emit_byte (mb, CEE_LDARG_2);
2249 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2250 mono_mb_emit_byte (mb, 3);
2251 mono_mb_emit_byte (mb, CEE_LDARG_2);
2252 mono_mb_emit_byte (mb, CEE_LDNULL);
2253 mono_mb_emit_byte (mb, CEE_STIND_I);
2256 if (method->string_ctor) {
2257 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2258 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2259 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
2261 mono_mb_emit_ldarg (mb, 0);
2265 for (i = 0; i < sig->param_count; i++) {
2266 MonoType *t = sig->params [i];
2269 mono_mb_emit_ldarg (mb, 1);
2271 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
2272 mono_mb_emit_byte (mb, CEE_ADD);
2274 mono_mb_emit_byte (mb, CEE_LDIND_I);
2279 type = sig->params [i]->type;
2283 mono_mb_emit_byte (mb, CEE_LDIND_I1);
2285 case MONO_TYPE_BOOLEAN:
2287 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2290 mono_mb_emit_byte (mb, CEE_LDIND_I2);
2293 case MONO_TYPE_CHAR:
2294 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2298 mono_mb_emit_byte (mb, CEE_LDIND_I);
2301 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2304 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2307 mono_mb_emit_byte (mb, CEE_LDIND_R4);
2310 mono_mb_emit_byte (mb, CEE_LDIND_R8);
2314 mono_mb_emit_byte (mb, CEE_LDIND_I8);
2316 case MONO_TYPE_STRING:
2317 case MONO_TYPE_CLASS:
2318 case MONO_TYPE_ARRAY:
2320 case MONO_TYPE_SZARRAY:
2321 case MONO_TYPE_OBJECT:
2324 case MONO_TYPE_VALUETYPE:
2325 if (t->data.klass->enumtype) {
2326 type = t->data.klass->enum_basetype->type;
2329 mono_mb_emit_byte (mb, CEE_LDOBJ);
2330 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
2333 g_assert_not_reached ();
2337 mono_mb_emit_ldarg (mb, 3);
2338 mono_mb_emit_calli (mb, callsig);
2340 if (sig->ret->byref) {
2342 g_assert_not_reached ();
2346 switch (sig->ret->type) {
2347 case MONO_TYPE_VOID:
2348 if (!method->string_ctor)
2349 mono_mb_emit_byte (mb, CEE_LDNULL);
2351 case MONO_TYPE_BOOLEAN:
2352 case MONO_TYPE_CHAR:
2365 case MONO_TYPE_VALUETYPE:
2366 /* box value types */
2367 mono_mb_emit_byte (mb, CEE_BOX);
2368 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
2370 case MONO_TYPE_STRING:
2371 case MONO_TYPE_CLASS:
2372 case MONO_TYPE_ARRAY:
2373 case MONO_TYPE_SZARRAY:
2374 case MONO_TYPE_OBJECT:
2379 g_assert_not_reached ();
2382 mono_mb_emit_stloc (mb, 0);
2384 mono_mb_emit_byte (mb, CEE_LEAVE);
2386 mono_mb_emit_i4 (mb, 0);
2388 clause = g_new0 (MonoExceptionClause, 1);
2389 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
2390 clause->try_len = mb->pos;
2393 clause->token_or_filter = mb->pos;
2395 mono_mb_emit_byte (mb, CEE_POP);
2396 mono_mb_emit_byte (mb, CEE_LDARG_2);
2397 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2398 mono_mb_emit_byte (mb, CEE_PREFIX1);
2399 mono_mb_emit_byte (mb, CEE_CGT_UN);
2400 mono_mb_emit_byte (mb, CEE_PREFIX1);
2401 mono_mb_emit_byte (mb, CEE_ENDFILTER);
2403 clause->handler_offset = mb->pos;
2406 /* store exception */
2407 mono_mb_emit_stloc (mb, 1);
2409 mono_mb_emit_byte (mb, CEE_LDARG_2);
2410 mono_mb_emit_ldloc (mb, 1);
2411 mono_mb_emit_byte (mb, CEE_STIND_I);
2413 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2414 mono_mb_emit_stloc (mb, 0);
2416 mono_mb_emit_byte (mb, CEE_LEAVE);
2417 mono_mb_emit_i4 (mb, 0);
2419 clause->handler_len = mb->pos - clause->handler_offset;
2422 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2423 mono_mb_emit_ldloc (mb, 0);
2424 mono_mb_emit_byte (mb, CEE_RET);
2426 /* taken from mono_mb_create_and_cache */
2427 EnterCriticalSection (&marshal_mutex);
2429 res = g_hash_table_lookup (cache, callsig);
2430 /* Somebody may have created it before us */
2432 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
2433 g_hash_table_insert (cache, callsig, res);
2434 mono_g_hash_table_insert (wrapper_hash, res, callsig);
2437 LeaveCriticalSection (&marshal_mutex);
2438 /* end mono_mb_create_and_cache */
2442 header = ((MonoMethodNormal *)res)->header;
2443 header->num_clauses = 1;
2444 header->clauses = clause;
2450 raise_auto_layout_exception (MonoClass *klass)
2452 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
2453 klass->name_space, klass->name);
2455 MonoException *e = mono_exception_from_name_msg (
2456 mono_get_corlib (), "System.Runtime.InteropServices",
2457 "MarshalDirectiveException", msg);
2459 mono_raise_exception (e);
2463 * generates IL code to call managed methods from unmanaged code
2466 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
2468 MonoMethodSignature *sig, *csig;
2469 MonoMethodBuilder *mb;
2470 MonoClass *klass = NULL;
2473 int i, pos = 0, *tmp_locals;
2474 static MonoMethodSignature *alloc_sig = NULL;
2477 g_assert (method != NULL);
2478 g_assert (!method->signature->pinvoke);
2480 cache = method->klass->image->managed_wrapper_cache;
2481 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
2484 /* Under MS, the allocation should be done using CoTaskMemAlloc */
2486 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2487 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
2488 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
2489 alloc_sig->pinvoke = 1;
2492 sig = method->signature;
2494 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
2496 /* allocate local 0 (pointer) src_ptr */
2497 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2498 /* allocate local 1 (pointer) dst_ptr */
2499 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2500 /* allocate local 2 (boolean) delete_old */
2501 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2503 if (!MONO_TYPE_IS_VOID(sig->ret)) {
2504 /* allocate local 3 to store the return value */
2505 mono_mb_add_local (mb, sig->ret);
2508 mono_mb_emit_icon (mb, 0);
2509 mono_mb_emit_byte (mb, CEE_STLOC_2);
2511 /* we copy the signature, so that we can modify it */
2512 csig = mono_metadata_signature_dup (sig);
2516 #ifdef PLATFORM_WIN32
2518 * Under windows, delegates passed to native code must use the STDCALL
2519 * calling convention.
2521 csig->call_convention = MONO_CALL_STDCALL;
2524 /* fixme: howto handle this ? */
2528 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2529 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2530 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
2535 g_assert_not_reached ();
2540 /* we first do all conversions */
2541 tmp_locals = alloca (sizeof (int) * sig->param_count);
2542 for (i = 0; i < sig->param_count; i ++) {
2543 MonoType *t = sig->params [i];
2544 MonoMarshalSpec *spec = mspecs [i + 1];
2548 /* Ensure that we have marshalling info for this param */
2549 mono_marshal_load_type_info (mono_class_from_mono_type (t));
2551 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2554 MonoMethod *marshal_native_to_managed;
2555 MonoMethod *get_instance;
2557 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2558 g_assert (mtype != NULL);
2559 mklass = mono_class_from_mono_type (mtype);
2560 g_assert (mklass != NULL);
2562 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
2563 g_assert (marshal_native_to_managed);
2564 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2565 g_assert (get_instance);
2568 case MONO_TYPE_CLASS:
2569 case MONO_TYPE_OBJECT:
2570 case MONO_TYPE_STRING:
2571 case MONO_TYPE_ARRAY:
2572 case MONO_TYPE_SZARRAY:
2576 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2578 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
2580 mono_mb_emit_byte (mb, CEE_CALL);
2581 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
2583 mono_mb_emit_ldarg (mb, i);
2585 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2586 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
2588 mono_mb_emit_stloc (mb, tmp_locals [i]);
2591 g_warning ("custom marshalling of type %x is currently not supported", t->type);
2592 g_assert_not_reached ();
2599 case MONO_TYPE_CLASS: {
2600 klass = t->data.klass;
2602 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2604 if (klass->delegate) {
2605 g_assert (!t->byref);
2606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2607 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2608 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2609 mono_mb_emit_ldarg (mb, i);
2610 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
2611 mono_mb_emit_stloc (mb, tmp_locals [i]);
2615 /* The class can not have an automatic layout */
2616 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2617 raise_auto_layout_exception (klass);
2619 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
2620 mono_mb_emit_byte (mb, CEE_LDNULL);
2621 mono_mb_emit_stloc (mb, tmp_locals [i]);
2626 mono_mb_emit_ldarg (mb, i);
2630 /* Check for NULL and raise an exception */
2631 mono_mb_emit_byte (mb, CEE_BRTRUE);
2633 mono_mb_emit_i4 (mb, 0);
2635 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2637 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2638 mono_mb_emit_ldarg (mb, i);
2639 mono_mb_emit_byte (mb, CEE_LDIND_I);
2642 mono_mb_emit_byte (mb, CEE_STLOC_0);
2644 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2645 mono_mb_emit_stloc (mb, tmp_locals [i]);
2647 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2648 mono_mb_emit_byte (mb, CEE_BRFALSE);
2650 mono_mb_emit_i4 (mb, 0);
2652 /* Create and set dst */
2653 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2654 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
2655 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
2656 mono_mb_emit_stloc (mb, tmp_locals [i]);
2657 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2658 mono_mb_emit_icon (mb, sizeof (MonoObject));
2659 mono_mb_emit_byte (mb, CEE_ADD);
2660 mono_mb_emit_byte (mb, CEE_STLOC_1);
2662 /* emit valuetype conversion code */
2663 emit_struct_conv (mb, klass, TRUE);
2665 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2668 case MONO_TYPE_VALUETYPE:
2670 klass = sig->params [i]->data.klass;
2671 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2672 klass->blittable || klass->enumtype)
2675 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
2677 if (t->attrs & PARAM_ATTRIBUTE_OUT)
2681 mono_mb_emit_ldarg (mb, i);
2683 mono_mb_emit_ldarg_addr (mb, i);
2684 mono_mb_emit_byte (mb, CEE_STLOC_0);
2687 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2688 mono_mb_emit_byte (mb, CEE_BRFALSE);
2690 mono_mb_emit_i4 (mb, 0);
2693 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2694 mono_mb_emit_byte (mb, CEE_STLOC_1);
2696 /* emit valuetype conversion code */
2697 emit_struct_conv (mb, klass, TRUE);
2700 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2702 case MONO_TYPE_STRING: {
2703 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
2708 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2709 csig->params [i] = &mono_defaults.int_class->byval_arg;
2711 mono_mb_emit_ldarg (mb, i);
2714 case MONO_NATIVE_LPWSTR:
2715 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
2717 case MONO_NATIVE_LPSTR:
2718 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
2721 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
2722 MonoException *exc = mono_get_exception_not_implemented (msg);
2725 mono_raise_exception (exc);
2729 mono_mb_emit_stloc (mb, tmp_locals [i]);
2732 case MONO_TYPE_ARRAY:
2733 case MONO_TYPE_SZARRAY:
2737 klass = mono_class_from_mono_type (t);
2739 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2740 csig->params [i] = &mono_defaults.int_class->byval_arg;
2742 g_warning ("array marshaling not implemented");
2743 g_assert_not_reached ();
2748 for (i = 0; i < sig->param_count; i++) {
2749 MonoType *t = sig->params [i];
2752 case MONO_TYPE_BOOLEAN:
2766 mono_mb_emit_ldarg (mb, i);
2768 case MONO_TYPE_STRING:
2770 mono_mb_emit_ldarg (mb, i);
2772 g_assert (tmp_locals [i]);
2773 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2776 case MONO_TYPE_CLASS:
2778 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2780 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2782 case MONO_TYPE_ARRAY:
2783 case MONO_TYPE_SZARRAY:
2784 case MONO_TYPE_OBJECT:
2786 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2788 mono_mb_emit_ldarg (mb, i);
2790 case MONO_TYPE_VALUETYPE:
2791 klass = sig->params [i]->data.klass;
2792 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2793 klass->blittable || klass->enumtype) {
2794 mono_mb_emit_ldarg (mb, i);
2798 g_assert (tmp_locals [i]);
2800 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
2802 mono_mb_emit_ldloc (mb, tmp_locals [i]);
2805 g_warning ("type 0x%02x unknown", t->type);
2806 g_assert_not_reached ();
2810 emit_thread_interrupt_checkpoint (mb);
2811 mono_mb_emit_managed_call (mb, method, NULL);
2813 /* Ensure that we have marshalling info for the return */
2814 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
2816 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
2817 MonoMarshalSpec *spec = mspecs [0];
2822 g_assert (!sig->ret->byref);
2824 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2826 mklass = mono_class_from_mono_type (mtype);
2829 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2831 switch (sig->ret->type) {
2832 case MONO_TYPE_CLASS:
2833 case MONO_TYPE_OBJECT:
2834 case MONO_TYPE_STRING:
2835 case MONO_TYPE_ARRAY:
2836 case MONO_TYPE_SZARRAY:
2837 mono_mb_emit_byte (mb, CEE_STLOC_3);
2839 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2840 mono_mb_emit_stloc (mb, loc1);
2842 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
2843 mono_mb_emit_byte (mb, CEE_CALL);
2844 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "GetInstance", 1)));
2845 mono_mb_emit_byte (mb, CEE_DUP);
2847 mono_mb_emit_byte (mb, CEE_LDLOC_3);
2848 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2849 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "MarshalManagedToNative", 1)));
2850 mono_mb_emit_byte (mb, CEE_STLOC_3);
2852 mono_mb_emit_ldloc (mb, loc1);
2853 mono_mb_emit_byte (mb, CEE_CALLVIRT);
2854 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_find_method_by_name (mklass, "CleanUpManagedData", 1)));
2858 g_warning ("custom marshalling of type %x is currently not supported", sig->ret->type);
2859 g_assert_not_reached ();
2864 if (!sig->ret->byref) {
2865 switch (sig->ret->type) {
2866 case MONO_TYPE_VOID:
2868 case MONO_TYPE_BOOLEAN:
2882 case MONO_TYPE_OBJECT:
2883 mono_mb_emit_byte (mb, CEE_STLOC_3);
2885 case MONO_TYPE_STRING:
2886 csig->ret = &mono_defaults.int_class->byval_arg;
2888 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
2889 mono_mb_emit_byte (mb, CEE_STLOC_3);
2891 case MONO_TYPE_VALUETYPE:
2892 klass = sig->ret->data.klass;
2893 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
2894 klass->blittable || klass->enumtype)
2897 /* load pointer to returned value type */
2898 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2899 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
2901 /* store the address of the source into local variable 0 */
2902 mono_mb_emit_byte (mb, CEE_STLOC_0);
2903 /* allocate space for the native struct and
2904 * store the address into dst_ptr */
2905 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2906 g_assert (retobj_var);
2907 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2908 mono_mb_emit_byte (mb, CEE_CONV_I);
2909 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2910 emit_thread_interrupt_checkpoint (mb);
2911 mono_mb_emit_byte (mb, CEE_STLOC_1);
2912 mono_mb_emit_byte (mb, CEE_LDLOC_1);
2913 mono_mb_emit_stloc (mb, retobj_var);
2915 /* emit valuetype conversion code */
2916 emit_struct_conv (mb, klass, FALSE);
2918 case MONO_TYPE_CLASS: {
2921 klass = sig->ret->data.klass;
2923 if (klass->delegate) {
2924 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
2925 mono_mb_emit_byte (mb, CEE_STLOC_3);
2929 /* The class can not have an automatic layout */
2930 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2931 raise_auto_layout_exception (klass);
2933 mono_mb_emit_byte (mb, CEE_STLOC_0);
2934 /* Check for null */
2935 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2936 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2937 mono_mb_emit_byte (mb, CEE_LDNULL);
2938 mono_mb_emit_byte (mb, CEE_STLOC_3);
2939 pos2 = mono_mb_emit_branch (mb, CEE_BR);
2941 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
2944 mono_mb_emit_byte (mb, CEE_LDLOC_0);
2945 mono_mb_emit_icon (mb, sizeof (MonoObject));
2946 mono_mb_emit_byte (mb, CEE_ADD);
2947 mono_mb_emit_byte (mb, CEE_STLOC_0);
2949 /* Allocate and set dest */
2950 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
2951 mono_mb_emit_byte (mb, CEE_CONV_I);
2952 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
2953 emit_thread_interrupt_checkpoint (mb);
2954 mono_mb_emit_byte (mb, CEE_DUP);
2955 mono_mb_emit_byte (mb, CEE_STLOC_1);
2956 mono_mb_emit_byte (mb, CEE_STLOC_3);
2958 emit_struct_conv (mb, klass, FALSE);
2960 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
2964 g_warning ("return type 0x%02x unknown", sig->ret->type);
2965 g_assert_not_reached ();
2968 mono_mb_emit_byte (mb, CEE_STLOC_3);
2971 /* Convert byref arguments back */
2972 for (i = 0; i < sig->param_count; i ++) {
2973 MonoType *t = sig->params [i];
2974 MonoMarshalSpec *spec = mspecs [i + 1];
2976 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
2979 MonoMethod *cleanup_managed;
2980 MonoMethod *get_instance;
2982 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
2983 g_assert (mtype != NULL);
2984 mklass = mono_class_from_mono_type (mtype);
2985 g_assert (mklass != NULL);
2987 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
2988 g_assert (get_instance);
2989 cleanup_managed = mono_find_method_by_name (mklass, "CleanUpManagedData", 1);
2990 g_assert (cleanup_managed);
2993 case MONO_TYPE_CLASS:
2994 case MONO_TYPE_OBJECT:
2995 case MONO_TYPE_STRING:
2996 case MONO_TYPE_ARRAY:
2997 case MONO_TYPE_SZARRAY:
2999 g_assert_not_reached ();
3001 /* Call CleanUpManagedData */
3003 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3005 mono_mb_emit_byte (mb, CEE_CALL);
3006 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3008 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3009 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3010 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_managed));
3014 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3015 g_assert_not_reached ();
3025 case MONO_TYPE_CLASS: {
3028 klass = t->data.klass;
3030 /* Check for null */
3031 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3032 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
3033 mono_mb_emit_ldarg (mb, i);
3034 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3035 mono_mb_emit_byte (mb, CEE_STIND_I);
3036 pos2 = mono_mb_emit_branch (mb, CEE_BR);
3038 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3041 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3042 mono_mb_emit_icon (mb, sizeof (MonoObject));
3043 mono_mb_emit_byte (mb, CEE_ADD);
3044 mono_mb_emit_byte (mb, CEE_STLOC_0);
3046 /* Allocate and set dest */
3047 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3048 mono_mb_emit_byte (mb, CEE_CONV_I);
3049 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
3050 emit_thread_interrupt_checkpoint (mb);
3051 mono_mb_emit_byte (mb, CEE_STLOC_1);
3053 /* Update argument pointer */
3054 mono_mb_emit_ldarg (mb, i);
3055 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3056 mono_mb_emit_byte (mb, CEE_STIND_I);
3058 /* emit valuetype conversion code */
3059 emit_struct_conv (mb, klass, FALSE);
3061 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
3064 case MONO_TYPE_VALUETYPE: {
3067 klass = t->data.klass;
3069 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3070 klass->blittable || klass->enumtype) {
3074 /* Check for null */
3075 mono_mb_emit_ldarg (mb, i);
3076 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3079 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3080 mono_mb_emit_byte (mb, CEE_STLOC_0);
3083 mono_mb_emit_ldarg (mb, i);
3084 mono_mb_emit_byte (mb, CEE_STLOC_1);
3086 /* emit valuetype conversion code */
3087 emit_struct_conv (mb, klass, FALSE);
3089 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
3096 mono_mb_emit_ldloc (mb, retobj_var);
3097 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3098 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
3099 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3102 if (!MONO_TYPE_IS_VOID(sig->ret))
3103 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3104 mono_mb_emit_byte (mb, CEE_RET);
3108 res = mono_mb_create_and_cache (cache, method,
3109 mb, csig, sig->param_count + 16);
3111 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
3116 /* 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)); */
3122 * mono_marshal_get_ldfld_wrapper:
3123 * @type: the type of the field
3125 * This method generates a function which can be use to load a field with type
3126 * @type from an object. The generated function has the following signature:
3127 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
3130 mono_marshal_get_ldfld_wrapper (MonoType *type)
3132 MonoMethodSignature *sig, *csig;
3133 MonoMethodBuilder *mb;
3136 static GHashTable *ldfld_hash = NULL;
3138 int t, pos0, pos1 = 0;
3143 if (type->type == MONO_TYPE_SZARRAY) {
3144 klass = mono_defaults.array_class;
3145 } else if (type->type == MONO_TYPE_VALUETYPE) {
3146 klass = type->data.klass;
3147 if (klass->enumtype) {
3148 t = klass->enum_basetype->type;
3149 klass = mono_class_from_mono_type (klass->enum_basetype);
3151 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3152 t == MONO_TYPE_CLASS) {
3153 klass = mono_defaults.object_class;
3154 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3155 klass = mono_defaults.int_class;
3157 klass = mono_class_from_mono_type (type);
3160 klass = mono_defaults.int_class;
3163 EnterCriticalSection (&marshal_mutex);
3165 ldfld_hash = g_hash_table_new (NULL, NULL);
3166 res = g_hash_table_lookup (ldfld_hash, klass);
3167 LeaveCriticalSection (&marshal_mutex);
3171 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
3172 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
3175 mb->method->save_lmf = 1;
3177 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3178 sig->params [0] = &mono_defaults.object_class->byval_arg;
3179 sig->params [1] = &mono_defaults.int_class->byval_arg;
3180 sig->params [2] = &mono_defaults.int_class->byval_arg;
3181 sig->params [3] = &mono_defaults.int_class->byval_arg;
3182 sig->ret = &klass->byval_arg;
3184 mono_mb_emit_ldarg (mb, 0);
3185 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3187 mono_mb_emit_ldarg (mb, 0);
3188 mono_mb_emit_ldarg (mb, 1);
3189 mono_mb_emit_ldarg (mb, 2);
3191 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
3192 csig->params [0] = &mono_defaults.object_class->byval_arg;
3193 csig->params [1] = &mono_defaults.int_class->byval_arg;
3194 csig->params [2] = &mono_defaults.int_class->byval_arg;
3195 csig->ret = &klass->this_arg;
3198 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
3199 emit_thread_interrupt_checkpoint (mb);
3201 if (klass->valuetype) {
3202 mono_mb_emit_byte (mb, CEE_UNBOX);
3203 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3204 mono_mb_emit_byte (mb, CEE_BR);
3206 mono_mb_emit_i4 (mb, 0);
3208 mono_mb_emit_byte (mb, CEE_RET);
3212 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
3214 mono_mb_emit_ldarg (mb, 0);
3215 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3216 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3217 mono_mb_emit_ldarg (mb, 3);
3218 mono_mb_emit_byte (mb, CEE_ADD);
3220 if (klass->valuetype)
3221 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
3226 case MONO_TYPE_BOOLEAN:
3227 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3229 case MONO_TYPE_CHAR:
3232 mono_mb_emit_byte (mb, CEE_LDIND_I2);
3236 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3240 mono_mb_emit_byte (mb, CEE_LDIND_I8);
3243 mono_mb_emit_byte (mb, CEE_LDIND_R4);
3246 mono_mb_emit_byte (mb, CEE_LDIND_R8);
3248 case MONO_TYPE_ARRAY:
3250 case MONO_TYPE_FNPTR:
3251 case MONO_TYPE_SZARRAY:
3252 case MONO_TYPE_OBJECT:
3253 case MONO_TYPE_CLASS:
3254 case MONO_TYPE_STRING:
3257 mono_mb_emit_byte (mb, CEE_LDIND_I);
3259 case MONO_TYPE_VALUETYPE:
3260 g_assert (!klass->enumtype);
3261 mono_mb_emit_byte (mb, CEE_LDOBJ);
3262 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3265 g_warning ("type %x not implemented", type->type);
3266 g_assert_not_reached ();
3269 mono_mb_emit_byte (mb, CEE_RET);
3271 res = mono_mb_create_and_cache (ldfld_hash, klass,
3272 mb, sig, sig->param_count + 16);
3279 * mono_marshal_get_stfld_wrapper:
3280 * @type: the type of the field
3282 * This method generates a function which can be use to store a field with type
3283 * @type. The generated function has the following signature:
3284 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
3287 mono_marshal_get_stfld_wrapper (MonoType *type)
3289 MonoMethodSignature *sig, *csig;
3290 MonoMethodBuilder *mb;
3293 static GHashTable *stfld_hash = NULL;
3300 if (type->type == MONO_TYPE_SZARRAY) {
3301 klass = mono_defaults.array_class;
3302 } else if (type->type == MONO_TYPE_VALUETYPE) {
3303 klass = type->data.klass;
3304 if (klass->enumtype) {
3305 t = klass->enum_basetype->type;
3306 klass = mono_class_from_mono_type (klass->enum_basetype);
3308 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
3309 t == MONO_TYPE_CLASS) {
3310 klass = mono_defaults.object_class;
3311 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
3312 klass = mono_defaults.int_class;
3314 klass = mono_class_from_mono_type (type);
3317 klass = mono_defaults.int_class;
3320 EnterCriticalSection (&marshal_mutex);
3322 stfld_hash = g_hash_table_new (NULL, NULL);
3323 res = g_hash_table_lookup (stfld_hash, klass);
3324 LeaveCriticalSection (&marshal_mutex);
3328 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
3329 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
3332 mb->method->save_lmf = 1;
3334 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
3335 sig->params [0] = &mono_defaults.object_class->byval_arg;
3336 sig->params [1] = &mono_defaults.int_class->byval_arg;
3337 sig->params [2] = &mono_defaults.int_class->byval_arg;
3338 sig->params [3] = &mono_defaults.int_class->byval_arg;
3339 sig->params [4] = &klass->byval_arg;
3340 sig->ret = &mono_defaults.void_class->byval_arg;
3342 mono_mb_emit_ldarg (mb, 0);
3343 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3345 mono_mb_emit_ldarg (mb, 0);
3346 mono_mb_emit_ldarg (mb, 1);
3347 mono_mb_emit_ldarg (mb, 2);
3348 mono_mb_emit_ldarg (mb, 4);
3350 if (klass->valuetype) {
3351 mono_mb_emit_byte (mb, CEE_BOX);
3352 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3355 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3356 csig->params [0] = &mono_defaults.object_class->byval_arg;
3357 csig->params [1] = &mono_defaults.int_class->byval_arg;
3358 csig->params [2] = &mono_defaults.int_class->byval_arg;
3359 csig->params [3] = &klass->this_arg;
3360 csig->ret = &mono_defaults.void_class->byval_arg;
3363 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
3364 emit_thread_interrupt_checkpoint (mb);
3366 mono_mb_emit_byte (mb, CEE_RET);
3368 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3370 mono_mb_emit_ldarg (mb, 0);
3371 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3372 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3373 mono_mb_emit_ldarg (mb, 3);
3374 mono_mb_emit_byte (mb, CEE_ADD);
3375 mono_mb_emit_ldarg (mb, 4);
3380 case MONO_TYPE_BOOLEAN:
3381 mono_mb_emit_byte (mb, CEE_STIND_I1);
3383 case MONO_TYPE_CHAR:
3386 mono_mb_emit_byte (mb, CEE_STIND_I2);
3390 mono_mb_emit_byte (mb, CEE_STIND_I4);
3394 mono_mb_emit_byte (mb, CEE_STIND_I8);
3397 mono_mb_emit_byte (mb, CEE_STIND_R4);
3400 mono_mb_emit_byte (mb, CEE_STIND_R8);
3402 case MONO_TYPE_ARRAY:
3404 case MONO_TYPE_FNPTR:
3405 case MONO_TYPE_SZARRAY:
3406 case MONO_TYPE_OBJECT:
3407 case MONO_TYPE_CLASS:
3408 case MONO_TYPE_STRING:
3411 mono_mb_emit_byte (mb, CEE_STIND_I);
3413 case MONO_TYPE_VALUETYPE:
3414 g_assert (!klass->enumtype);
3415 mono_mb_emit_byte (mb, CEE_STOBJ);
3416 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3419 g_warning ("type %x not implemented", type->type);
3420 g_assert_not_reached ();
3423 mono_mb_emit_byte (mb, CEE_RET);
3425 res = mono_mb_create_and_cache (stfld_hash, klass,
3426 mb, sig, sig->param_count + 16);
3433 * generates IL code for the icall wrapper (the generated method
3434 * calls the unmanaged code in func)
3437 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
3439 MonoMethodSignature *csig;
3440 MonoMethodBuilder *mb;
3444 g_assert (sig->pinvoke);
3446 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3448 mb->method->save_lmf = 1;
3450 /* we copy the signature, so that we can modify it */
3453 mono_mb_emit_byte (mb, CEE_LDARG_0);
3455 for (i = 0; i < sig->param_count; i++)
3456 mono_mb_emit_ldarg (mb, i + sig->hasthis);
3458 mono_mb_emit_native_call (mb, sig, (gpointer) func);
3459 emit_thread_interrupt_checkpoint (mb);
3460 mono_mb_emit_byte (mb, CEE_RET);
3462 csig = mono_metadata_signature_dup (sig);
3464 if (csig->call_convention == MONO_CALL_VARARG)
3465 csig->call_convention = 0;
3467 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
3474 MonoMethodBuilder *mb;
3475 MonoMethodPInvoke *piinfo;
3476 int *orig_conv_args; /* Locals containing the original values of byref args */
3477 } EmitMarshalContext;
3480 MARSHAL_ACTION_CONV_IN,
3481 MARSHAL_ACTION_PUSH,
3482 MARSHAL_ACTION_CONV_OUT,
3483 MARSHAL_ACTION_CONV_RESULT
3487 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
3488 MonoMarshalSpec *spec,
3489 int conv_arg, MonoType **conv_arg_type,
3490 MarshalAction action)
3494 MonoMethod *get_instance, *cleanup_native;
3495 MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
3496 MonoMethodBuilder *mb = m->mb;
3499 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, mb->method->klass->image);
3500 g_assert (mtype != NULL);
3501 mklass = mono_class_from_mono_type (mtype);
3502 g_assert (mklass != NULL);
3504 get_instance = mono_find_method_by_name (mklass, "GetInstance", 1);
3505 g_assert (get_instance);
3506 cleanup_native = mono_find_method_by_name (mklass, "CleanUpNativeData", 1);
3507 g_assert (cleanup_native);
3508 marshal_managed_to_native = mono_find_method_by_name (mklass, "MarshalManagedToNative", 1);
3509 g_assert (marshal_managed_to_native);
3510 marshal_native_to_managed = mono_find_method_by_name (mklass, "MarshalNativeToManaged", 1);
3511 g_assert (marshal_native_to_managed);
3514 case MARSHAL_ACTION_CONV_IN:
3516 case MONO_TYPE_CLASS:
3517 case MONO_TYPE_OBJECT:
3518 case MONO_TYPE_STRING:
3519 case MONO_TYPE_ARRAY:
3520 case MONO_TYPE_SZARRAY:
3521 case MONO_TYPE_VALUETYPE:
3525 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3527 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3529 mono_mb_emit_byte (mb, CEE_CALL);
3530 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3532 mono_mb_emit_ldarg (mb, argnum);
3534 if (t->type == MONO_TYPE_VALUETYPE) {
3536 * Since we can't determine the type of the argument, we
3537 * will assume the unmanaged function takes a pointer.
3539 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3541 mono_mb_emit_byte (mb, CEE_BOX);
3542 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
3545 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3546 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
3547 mono_mb_emit_stloc (mb, conv_arg);
3551 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3552 g_assert_not_reached ();
3558 case MARSHAL_ACTION_CONV_OUT:
3560 case MONO_TYPE_CLASS:
3561 case MONO_TYPE_OBJECT:
3562 case MONO_TYPE_STRING:
3563 case MONO_TYPE_ARRAY:
3564 case MONO_TYPE_SZARRAY:
3565 case MONO_TYPE_VALUETYPE:
3566 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3568 mono_mb_emit_byte (mb, CEE_CALL);
3569 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3571 mono_mb_emit_ldloc (mb, conv_arg);
3573 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3574 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3579 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3580 g_assert_not_reached ();
3585 case MARSHAL_ACTION_PUSH:
3586 mono_mb_emit_ldloc (mb, conv_arg);
3589 case MARSHAL_ACTION_CONV_RESULT:
3590 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3593 case MONO_TYPE_CLASS:
3594 case MONO_TYPE_OBJECT:
3595 case MONO_TYPE_STRING:
3596 case MONO_TYPE_ARRAY:
3597 case MONO_TYPE_SZARRAY:
3598 mono_mb_emit_byte (mb, CEE_STLOC_3);
3600 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3601 mono_mb_emit_stloc (mb, loc1);
3603 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3605 mono_mb_emit_byte (mb, CEE_CALL);
3606 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3607 mono_mb_emit_byte (mb, CEE_DUP);
3609 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3610 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3611 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3612 mono_mb_emit_byte (mb, CEE_STLOC_3);
3614 mono_mb_emit_ldloc (mb, loc1);
3615 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3616 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
3620 g_assert_not_reached ();
3626 g_assert_not_reached ();
3633 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
3634 MonoMarshalSpec *spec,
3635 int conv_arg, MonoType **conv_arg_type,
3636 MarshalAction action)
3638 MonoMethodBuilder *mb = m->mb;
3641 case MARSHAL_ACTION_CONV_IN: {
3642 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
3644 g_assert (t->type == MONO_TYPE_OBJECT);
3645 g_assert (!t->byref);
3647 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3648 mono_mb_emit_ldarg (mb, argnum);
3649 mono_mb_emit_icon (mb, encoding);
3650 mono_mb_emit_icall (mb, mono_marshal_asany);
3651 mono_mb_emit_stloc (mb, conv_arg);
3655 case MARSHAL_ACTION_PUSH:
3656 mono_mb_emit_ldloc (mb, conv_arg);
3659 case MARSHAL_ACTION_CONV_OUT: {
3660 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
3662 mono_mb_emit_ldarg (mb, argnum);
3663 mono_mb_emit_ldloc (mb, conv_arg);
3664 mono_mb_emit_icon (mb, encoding);
3665 mono_mb_emit_icall (mb, mono_marshal_free_asany);
3670 g_assert_not_reached ();
3677 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
3678 MonoMarshalSpec *spec,
3679 int conv_arg, MonoType **conv_arg_type,
3680 MarshalAction action)
3682 MonoMethodBuilder *mb = m->mb;
3686 klass = t->data.klass;
3689 case MARSHAL_ACTION_CONV_IN:
3690 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3691 klass->blittable || klass->enumtype)
3694 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3696 /* store the address of the source into local variable 0 */
3698 mono_mb_emit_ldarg (mb, argnum);
3700 mono_mb_emit_ldarg_addr (mb, argnum);
3702 mono_mb_emit_byte (mb, CEE_STLOC_0);
3704 /* allocate space for the native struct and
3705 * store the address into local variable 1 (dest) */
3706 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3707 mono_mb_emit_byte (mb, CEE_PREFIX1);
3708 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3709 mono_mb_emit_stloc (mb, conv_arg);
3712 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3713 mono_mb_emit_byte (mb, CEE_BRFALSE);
3715 mono_mb_emit_i4 (mb, 0);
3719 mono_mb_emit_ldloc (mb, conv_arg);
3720 mono_mb_emit_byte (mb, CEE_STLOC_1);
3722 /* emit valuetype conversion code */
3723 emit_struct_conv (mb, klass, FALSE);
3726 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3729 case MARSHAL_ACTION_PUSH:
3730 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3731 klass->blittable || klass->enumtype) {
3732 mono_mb_emit_ldarg (mb, argnum);
3735 mono_mb_emit_ldloc (mb, conv_arg);
3737 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3738 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
3739 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3743 case MARSHAL_ACTION_CONV_OUT:
3744 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3745 klass->blittable || klass->enumtype)
3749 /* dst = argument */
3750 mono_mb_emit_ldarg (mb, argnum);
3751 mono_mb_emit_byte (mb, CEE_STLOC_1);
3753 mono_mb_emit_byte (mb, CEE_LDLOC_1);
3754 mono_mb_emit_byte (mb, CEE_BRFALSE);
3756 mono_mb_emit_i4 (mb, 0);
3758 /* src = tmp_locals [i] */
3759 mono_mb_emit_ldloc (mb, conv_arg);
3760 mono_mb_emit_byte (mb, CEE_STLOC_0);
3762 /* emit valuetype conversion code */
3763 emit_struct_conv (mb, klass, TRUE);
3766 emit_struct_free (mb, klass, conv_arg);
3769 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3772 case MARSHAL_ACTION_CONV_RESULT:
3773 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3775 mono_mb_emit_byte (mb, CEE_STLOC_3);
3778 /* load pointer to returned value type */
3779 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3780 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
3781 /* store the address of the source into local variable 0 */
3782 mono_mb_emit_byte (mb, CEE_STLOC_0);
3784 mono_mb_emit_ldloc_addr (mb, 3);
3785 mono_mb_emit_byte (mb, CEE_STLOC_1);
3787 /* emit valuetype conversion code */
3788 emit_struct_conv (mb, klass, TRUE);
3792 g_assert_not_reached ();
3799 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
3800 MonoMarshalSpec *spec,
3801 int conv_arg, MonoType **conv_arg_type,
3802 MarshalAction action)
3804 MonoMethodBuilder *mb = m->mb;
3805 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3806 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
3809 case MARSHAL_ACTION_CONV_IN:
3810 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3811 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3814 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3817 mono_mb_emit_ldarg (mb, argnum);
3818 mono_mb_emit_byte (mb, CEE_LDIND_I);
3820 mono_mb_emit_ldarg (mb, argnum);
3824 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3825 MonoException *exc = mono_get_exception_not_implemented (msg);
3828 mono_raise_exception (exc);
3831 mono_mb_emit_icall (mb, conv_to_icall (conv));
3833 mono_mb_emit_stloc (mb, conv_arg);
3836 case MARSHAL_ACTION_CONV_OUT:
3837 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
3838 mono_mb_emit_ldarg (mb, argnum);
3839 mono_mb_emit_ldloc (mb, conv_arg);
3840 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
3841 mono_mb_emit_byte (mb, CEE_STIND_I);
3843 if (mono_marshal_need_free (t, m->piinfo, spec)) {
3844 mono_mb_emit_ldloc (mb, conv_arg);
3845 mono_mb_emit_icall (mb, mono_marshal_free);
3850 case MARSHAL_ACTION_CONV_RESULT:
3851 mono_mb_emit_byte (mb, CEE_STLOC_0);
3852 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3855 switch (spec->native) {
3856 case MONO_NATIVE_LPWSTR:
3857 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
3860 g_warning ("marshalling conversion not implemented");
3861 g_assert_not_reached ();
3864 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
3866 mono_mb_emit_byte (mb, CEE_STLOC_3);
3868 /* free the string */
3869 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3870 mono_mb_emit_icall (mb, g_free);
3874 g_assert_not_reached ();
3881 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
3882 MonoMarshalSpec *spec,
3883 int conv_arg, MonoType **conv_arg_type,
3884 MarshalAction action)
3886 MonoMethodBuilder *mb = m->mb;
3887 MonoClass *klass = t->data.klass;
3891 case MARSHAL_ACTION_CONV_IN:
3892 *conv_arg_type = &mono_defaults.int_class->byval_arg;
3893 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3895 m->orig_conv_args [argnum] = 0;
3897 if (klass->delegate) {
3898 g_assert (!t->byref);
3899 mono_mb_emit_ldarg (mb, argnum);
3900 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
3901 mono_mb_emit_stloc (mb, conv_arg);
3902 } else if (klass == mono_defaults.stringbuilder_class) {
3903 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3904 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
3906 g_assert (!t->byref);
3907 mono_mb_emit_ldarg (mb, argnum);
3910 mono_mb_emit_icall (mb, conv_to_icall (conv));
3912 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
3913 MonoException *exc = mono_get_exception_not_implemented (msg);
3916 mono_raise_exception (exc);
3919 mono_mb_emit_stloc (mb, conv_arg);
3920 } else if (klass->blittable) {
3921 mono_mb_emit_ldarg (mb, argnum);
3922 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3923 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3924 mono_mb_emit_icon (mb, sizeof (MonoObject));
3925 mono_mb_emit_byte (mb, CEE_ADD);
3926 mono_mb_emit_stloc (mb, conv_arg);
3929 mono_mb_emit_byte (mb, CEE_LDNULL);
3930 mono_mb_emit_stloc (mb, conv_arg);
3933 /* we dont need any conversions for out parameters */
3934 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3937 mono_mb_emit_ldarg (mb, argnum);
3938 mono_mb_emit_byte (mb, CEE_LDIND_I);
3941 mono_mb_emit_ldarg (mb, argnum);
3942 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3943 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3946 /* store the address of the source into local variable 0 */
3947 mono_mb_emit_byte (mb, CEE_STLOC_0);
3948 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3949 mono_mb_emit_byte (mb, CEE_BRFALSE);
3951 mono_mb_emit_i4 (mb, 0);
3953 /* allocate space for the native struct and store the address */
3954 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
3955 mono_mb_emit_byte (mb, CEE_PREFIX1);
3956 mono_mb_emit_byte (mb, CEE_LOCALLOC);
3957 mono_mb_emit_stloc (mb, conv_arg);
3960 /* Need to store the original buffer so we can free it later */
3961 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3962 mono_mb_emit_ldloc (mb, conv_arg);
3963 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
3966 /* set the src_ptr */
3967 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3968 mono_mb_emit_icon (mb, sizeof (MonoObject));
3969 mono_mb_emit_byte (mb, CEE_ADD);
3970 mono_mb_emit_byte (mb, CEE_STLOC_0);
3973 mono_mb_emit_ldloc (mb, conv_arg);
3974 mono_mb_emit_byte (mb, CEE_STLOC_1);
3976 /* emit valuetype conversion code */
3977 emit_struct_conv (mb, klass, FALSE);
3979 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3983 case MARSHAL_ACTION_CONV_OUT:
3984 if (klass == mono_defaults.stringbuilder_class) {
3986 MonoMarshalNative encoding;
3987 MonoMarshalConv conv;
3989 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
3990 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
3992 g_assert (!t->byref);
3993 g_assert (encoding != -1);
3995 mono_mb_emit_ldarg (mb, argnum);
3996 mono_mb_emit_ldloc (mb, conv_arg);
3998 mono_mb_emit_icall (mb, conv_to_icall (conv));
4001 mono_mb_emit_ldloc (mb, conv_arg);
4002 mono_mb_emit_icall (mb, mono_marshal_free);
4007 if (klass->delegate)
4010 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4011 /* allocate a new object */
4012 mono_mb_emit_ldarg (mb, argnum);
4013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4014 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4015 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
4016 mono_mb_emit_byte (mb, CEE_STIND_I);
4019 /* dst = *argument */
4020 mono_mb_emit_ldarg (mb, argnum);
4023 mono_mb_emit_byte (mb, CEE_LDIND_I);
4025 mono_mb_emit_byte (mb, CEE_STLOC_1);
4027 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4028 mono_mb_emit_byte (mb, CEE_BRFALSE);
4030 mono_mb_emit_i4 (mb, 0);
4032 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4033 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4034 mono_mb_emit_icon (mb, sizeof (MonoObject));
4035 mono_mb_emit_byte (mb, CEE_ADD);
4036 mono_mb_emit_byte (mb, CEE_STLOC_1);
4038 /* src = tmp_locals [i] */
4039 mono_mb_emit_ldloc (mb, conv_arg);
4040 mono_mb_emit_byte (mb, CEE_STLOC_0);
4042 /* emit valuetype conversion code */
4043 emit_struct_conv (mb, t->data.klass, TRUE);
4045 /* Free the structure returned by the native code */
4046 emit_struct_free (mb, klass, conv_arg);
4049 * If the native function changed the pointer, then free
4050 * the original structure plus the new pointer.
4052 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
4053 mono_mb_emit_ldloc (mb, conv_arg);
4054 mono_mb_emit_byte (mb, CEE_BEQ);
4056 mono_mb_emit_i4 (mb, 0);
4058 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
4059 g_assert (m->orig_conv_args [argnum]);
4061 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
4064 mono_mb_emit_ldloc (mb, conv_arg);
4065 mono_mb_emit_icall (mb, g_free);
4067 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
4070 /* Free the original structure passed to native code */
4071 emit_struct_free (mb, klass, conv_arg);
4073 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4076 case MARSHAL_ACTION_CONV_RESULT:
4078 mono_mb_emit_byte (mb, CEE_STLOC_0);
4080 /* Make a copy since emit_conv modifies local 0 */
4081 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4082 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4083 mono_mb_emit_stloc (mb, loc);
4085 mono_mb_emit_byte (mb, CEE_LDNULL);
4086 mono_mb_emit_byte (mb, CEE_STLOC_3);
4088 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4089 mono_mb_emit_byte (mb, CEE_BRFALSE);
4091 mono_mb_emit_i4 (mb, 0);
4093 /* allocate result object */
4095 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4096 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
4097 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4098 mono_mb_emit_byte (mb, CEE_STLOC_3);
4102 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4103 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4104 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4105 mono_mb_emit_icon (mb, sizeof (MonoObject));
4106 mono_mb_emit_byte (mb, CEE_ADD);
4107 mono_mb_emit_byte (mb, CEE_STLOC_1);
4109 /* emit conversion code */
4110 emit_struct_conv (mb, klass, TRUE);
4112 emit_struct_free (mb, klass, loc);
4114 /* Free the pointer allocated by unmanaged code */
4115 mono_mb_emit_ldloc (mb, loc);
4116 mono_mb_emit_icall (mb, g_free);
4118 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4122 g_assert_not_reached ();
4129 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
4130 MonoMarshalSpec *spec,
4131 int conv_arg, MonoType **conv_arg_type,
4132 MarshalAction action)
4134 MonoMethodBuilder *mb = m->mb;
4135 MonoClass *klass = mono_class_from_mono_type (t);
4136 gboolean need_convert, need_free;
4139 case MARSHAL_ACTION_CONV_IN:
4140 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4141 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4143 if (klass->element_class->blittable) {
4144 mono_mb_emit_ldarg (mb, argnum);
4146 mono_mb_emit_byte (mb, CEE_LDIND_I);
4147 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
4148 mono_mb_emit_stloc (mb, conv_arg);
4152 guint32 label1, label2, label3;
4153 int index_var, src_var, dest_ptr, esize;
4154 MonoMarshalNative encoding;
4155 MonoMarshalConv conv;
4156 gboolean is_string = FALSE;
4158 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4160 eklass = klass->element_class;
4162 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4163 if (eklass == mono_defaults.string_class) {
4165 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4167 else if (eklass == mono_defaults.stringbuilder_class) {
4169 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
4174 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4175 mono_mb_emit_ldarg (mb, argnum);
4177 mono_mb_emit_byte (mb, CEE_LDIND_I);
4178 mono_mb_emit_stloc (mb, src_var);
4181 mono_mb_emit_ldloc (mb, src_var);
4182 mono_mb_emit_stloc (mb, conv_arg);
4183 mono_mb_emit_ldloc (mb, src_var);
4184 mono_mb_emit_byte (mb, CEE_BRFALSE);
4186 mono_mb_emit_i4 (mb, 0);
4190 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
4191 MonoException *exc = mono_get_exception_not_implemented (msg);
4194 mono_raise_exception (exc);
4199 esize = sizeof (gpointer);
4201 esize = mono_class_native_size (eklass, NULL);
4203 /* allocate space for the native struct and store the address */
4204 mono_mb_emit_icon (mb, esize);
4205 mono_mb_emit_ldloc (mb, src_var);
4206 mono_mb_emit_byte (mb, CEE_LDLEN);
4208 if (eklass == mono_defaults.string_class) {
4209 /* Make the array bigger for the terminating null */
4210 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
4211 mono_mb_emit_byte (mb, CEE_ADD);
4213 mono_mb_emit_byte (mb, CEE_MUL);
4214 mono_mb_emit_byte (mb, CEE_PREFIX1);
4215 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4216 mono_mb_emit_stloc (mb, conv_arg);
4218 mono_mb_emit_ldloc (mb, conv_arg);
4219 mono_mb_emit_stloc (mb, dest_ptr);
4221 /* Emit marshalling loop */
4222 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4223 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4224 mono_mb_emit_stloc (mb, index_var);
4226 mono_mb_emit_ldloc (mb, index_var);
4227 mono_mb_emit_ldloc (mb, src_var);
4228 mono_mb_emit_byte (mb, CEE_LDLEN);
4229 mono_mb_emit_byte (mb, CEE_BGE);
4231 mono_mb_emit_i4 (mb, 0);
4233 /* Emit marshalling code */
4236 mono_mb_emit_ldloc (mb, dest_ptr);
4237 mono_mb_emit_ldloc (mb, src_var);
4238 mono_mb_emit_ldloc (mb, index_var);
4239 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4240 mono_mb_emit_icall (mb, conv_to_icall (conv));
4241 mono_mb_emit_byte (mb, CEE_STIND_I);
4244 /* set the src_ptr */
4245 mono_mb_emit_ldloc (mb, src_var);
4246 mono_mb_emit_ldloc (mb, index_var);
4247 mono_mb_emit_byte (mb, CEE_LDELEMA);
4248 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4249 mono_mb_emit_byte (mb, CEE_STLOC_0);
4252 mono_mb_emit_ldloc (mb, dest_ptr);
4253 mono_mb_emit_byte (mb, CEE_STLOC_1);
4255 /* emit valuetype conversion code */
4256 emit_struct_conv (mb, eklass, FALSE);
4259 mono_mb_emit_add_to_local (mb, index_var, 1);
4260 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
4262 mono_mb_emit_byte (mb, CEE_BR);
4263 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4265 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4267 if (eklass == mono_defaults.string_class) {
4268 /* Null terminate */
4269 mono_mb_emit_ldloc (mb, dest_ptr);
4270 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4271 mono_mb_emit_byte (mb, CEE_STIND_REF);
4274 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4279 case MARSHAL_ACTION_CONV_OUT:
4280 /* Character arrays are implicitly marshalled as [Out] */
4281 need_convert = (klass->element_class == mono_defaults.char_class) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
4282 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
4285 if (need_convert || need_free) {
4286 /* FIXME: Optimize blittable case */
4288 guint32 label1, label2, label3;
4289 int index_var, src_ptr, loc, esize;
4291 eklass = klass->element_class;
4292 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
4293 esize = sizeof (gpointer);
4295 esize = mono_class_native_size (eklass, NULL);
4296 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4297 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4300 mono_mb_emit_ldarg (mb, argnum);
4302 mono_mb_emit_byte (mb, CEE_LDIND_I);
4303 mono_mb_emit_byte (mb, CEE_BRFALSE);
4305 mono_mb_emit_i4 (mb, 0);
4307 mono_mb_emit_ldloc (mb, conv_arg);
4308 mono_mb_emit_stloc (mb, src_ptr);
4310 /* Emit marshalling loop */
4311 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4312 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4313 mono_mb_emit_stloc (mb, index_var);
4315 mono_mb_emit_ldloc (mb, index_var);
4316 mono_mb_emit_ldarg (mb, argnum);
4318 mono_mb_emit_byte (mb, CEE_LDIND_I);
4319 mono_mb_emit_byte (mb, CEE_LDLEN);
4320 mono_mb_emit_byte (mb, CEE_BGE);
4322 mono_mb_emit_i4 (mb, 0);
4324 /* Emit marshalling code */
4326 if (eklass == mono_defaults.stringbuilder_class) {
4327 gboolean need_free2;
4328 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
4330 g_assert (conv != -1);
4333 mono_mb_emit_ldarg (mb, argnum);
4335 mono_mb_emit_byte (mb, CEE_LDIND_I);
4336 mono_mb_emit_ldloc (mb, index_var);
4337 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4340 mono_mb_emit_ldloc (mb, src_ptr);
4341 mono_mb_emit_byte (mb, CEE_LDIND_I);
4343 mono_mb_emit_icall (mb, conv_to_icall (conv));
4347 mono_mb_emit_ldloc (mb, src_ptr);
4348 mono_mb_emit_byte (mb, CEE_LDIND_I);
4350 mono_mb_emit_icall (mb, mono_marshal_free);
4353 else if (eklass == mono_defaults.string_class) {
4356 mono_mb_emit_ldloc (mb, src_ptr);
4357 mono_mb_emit_byte (mb, CEE_LDIND_I);
4359 mono_mb_emit_icall (mb, mono_marshal_free);
4364 /* set the src_ptr */
4365 mono_mb_emit_ldloc (mb, src_ptr);
4366 mono_mb_emit_byte (mb, CEE_STLOC_0);
4369 mono_mb_emit_ldarg (mb, argnum);
4371 mono_mb_emit_byte (mb, CEE_LDIND_I);
4372 mono_mb_emit_ldloc (mb, index_var);
4373 mono_mb_emit_byte (mb, CEE_LDELEMA);
4374 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
4375 mono_mb_emit_byte (mb, CEE_STLOC_1);
4377 /* emit valuetype conversion code */
4378 emit_struct_conv (mb, eklass, TRUE);
4382 mono_mb_emit_ldloc (mb, src_ptr);
4383 mono_mb_emit_stloc (mb, loc);
4384 mono_mb_emit_ldloc (mb, loc);
4386 emit_struct_free (mb, eklass, loc);
4390 mono_mb_emit_add_to_local (mb, index_var, 1);
4391 mono_mb_emit_add_to_local (mb, src_ptr, esize);
4393 mono_mb_emit_byte (mb, CEE_BR);
4394 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
4396 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
4397 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
4401 case MARSHAL_ACTION_CONV_RESULT:
4402 /* fixme: we need conversions here */
4403 mono_mb_emit_byte (mb, CEE_STLOC_3);
4406 g_assert_not_reached ();
4413 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
4414 MonoMarshalSpec *spec,
4415 int conv_arg, MonoType **conv_arg_type,
4416 MarshalAction action)
4418 MonoMethodBuilder *mb = m->mb;
4421 case MARSHAL_ACTION_CONV_IN: {
4422 MonoType *local_type;
4423 int variant_bool = 0;
4427 local_type = &mono_defaults.int32_class->byval_arg;
4429 switch (spec->native) {
4430 case MONO_NATIVE_I1:
4431 local_type = &mono_defaults.byte_class->byval_arg;
4433 case MONO_NATIVE_VARIANTBOOL:
4434 local_type = &mono_defaults.int16_class->byval_arg;
4438 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
4439 local_type = &mono_defaults.int32_class->byval_arg;
4443 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4444 conv_arg = mono_mb_add_local (mb, local_type);
4445 mono_mb_emit_ldarg (mb, argnum);
4446 mono_mb_emit_byte (mb, CEE_LDIND_I1);
4448 mono_mb_emit_byte (mb, CEE_NEG);
4449 mono_mb_emit_stloc (mb, conv_arg);
4453 case MARSHAL_ACTION_CONV_RESULT:
4454 /* maybe we need to make sure that it fits within 8 bits */
4455 mono_mb_emit_byte (mb, CEE_STLOC_3);
4459 g_assert_not_reached ();
4466 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
4467 MonoMarshalSpec *spec, int conv_arg,
4468 MonoType **conv_arg_type, MarshalAction action)
4470 /* Ensure that we have marshalling info for this param */
4471 mono_marshal_load_type_info (mono_class_from_mono_type (t));
4473 if (spec && spec->native == MONO_NATIVE_CUSTOM)
4474 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4476 if (spec && spec->native == MONO_NATIVE_ASANY)
4477 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4480 case MONO_TYPE_VALUETYPE:
4481 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4482 case MONO_TYPE_STRING:
4483 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4484 case MONO_TYPE_CLASS:
4485 case MONO_TYPE_OBJECT:
4486 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4487 case MONO_TYPE_ARRAY:
4488 case MONO_TYPE_SZARRAY:
4489 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4490 case MONO_TYPE_BOOLEAN:
4491 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
4498 * mono_marshal_get_native_wrapper:
4499 * @method: The MonoMethod to wrap.
4501 * generates IL code for the pinvoke wrapper (the generated method
4502 * calls the unmanaged code in method->addr)
4505 mono_marshal_get_native_wrapper (MonoMethod *method)
4507 EmitMarshalContext m;
4508 MonoMethodSignature *sig, *csig;
4509 MonoMethodPInvoke *piinfo;
4510 MonoMethodBuilder *mb;
4511 MonoMarshalSpec **mspecs;
4515 gboolean pinvoke = FALSE;
4516 int i, argnum, *tmp_locals;
4518 const char *exc_class = "MissingMethodException";
4519 const char *exc_arg = NULL;
4521 g_assert (method != NULL);
4522 g_assert (method->signature->pinvoke);
4524 cache = method->klass->image->native_wrapper_cache;
4525 if ((res = mono_marshal_find_in_cache (cache, method)))
4528 sig = method->signature;
4530 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4531 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
4534 if (!method->addr) {
4536 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
4538 method->addr = mono_lookup_internal_call (method);
4541 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4543 mb->method->save_lmf = 1;
4545 piinfo = (MonoMethodPInvoke *)method;
4547 if (!method->addr) {
4548 mono_mb_emit_exception (mb, exc_class, exc_arg);
4549 csig = mono_metadata_signature_dup (sig);
4551 res = mono_mb_create_and_cache (cache, method,
4552 mb, csig, csig->param_count + 16);
4560 /* internal calls: we simply push all arguments and call the method (no conversions) */
4561 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4563 /* hack - string constructors returns a value */
4564 if (method->string_ctor) {
4565 csig = mono_metadata_signature_dup (sig);
4566 csig->ret = &mono_defaults.string_class->byval_arg;
4571 mono_mb_emit_byte (mb, CEE_LDARG_0);
4573 for (i = 0; i < sig->param_count; i++)
4574 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4576 g_assert (method->addr);
4577 mono_mb_emit_native_call (mb, csig, method->addr);
4578 emit_thread_interrupt_checkpoint (mb);
4579 mono_mb_emit_byte (mb, CEE_RET);
4581 csig = mono_metadata_signature_dup (csig);
4583 res = mono_mb_create_and_cache (cache, method,
4584 mb, csig, csig->param_count + 16);
4591 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
4592 mono_method_get_marshal_info (method, mspecs);
4594 /* pinvoke: we need to convert the arguments if necessary */
4596 /* we copy the signature, so that we can set pinvoke to 0 */
4597 csig = mono_metadata_signature_dup (sig);
4600 /* we allocate local for use with emit_struct_conv() */
4601 /* allocate local 0 (pointer) src_ptr */
4602 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4603 /* allocate local 1 (pointer) dst_ptr */
4604 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4605 /* allocate local 2 (boolean) delete_old */
4606 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
4608 /* delete_old = FALSE */
4609 mono_mb_emit_icon (mb, 0);
4610 mono_mb_emit_byte (mb, CEE_STLOC_2);
4612 if (!MONO_TYPE_IS_VOID(sig->ret)) {
4613 /* allocate local 3 to store the return value */
4614 mono_mb_add_local (mb, sig->ret);
4617 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
4618 /* Return type custom marshaling */
4620 * Since we can't determine the return type of the unmanaged function,
4621 * we assume it returns a pointer, and pass that pointer to
4622 * MarshalNativeToManaged.
4624 csig->ret = &mono_defaults.int_class->byval_arg;
4627 /* we first do all conversions */
4628 tmp_locals = alloca (sizeof (int) * sig->param_count);
4629 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
4631 for (i = 0; i < sig->param_count; i ++) {
4632 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
4635 /* push all arguments */
4638 mono_mb_emit_byte (mb, CEE_LDARG_0);
4640 for (i = 0; i < sig->param_count; i++) {
4641 MonoType *t = sig->params [i];
4642 MonoMarshalSpec *spec = mspecs [i + 1];
4644 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY)))
4645 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
4647 argnum = i + sig->hasthis;
4650 case MONO_TYPE_BOOLEAN:
4652 g_assert (tmp_locals [i]);
4653 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4655 mono_mb_emit_ldarg (mb, argnum);
4670 mono_mb_emit_ldarg (mb, argnum);
4672 case MONO_TYPE_VALUETYPE:
4673 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
4675 case MONO_TYPE_STRING:
4676 case MONO_TYPE_CLASS:
4677 case MONO_TYPE_OBJECT:
4678 case MONO_TYPE_ARRAY:
4679 case MONO_TYPE_SZARRAY:
4680 g_assert (tmp_locals [i]);
4682 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4684 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4686 case MONO_TYPE_CHAR:
4687 /* fixme: dont know how to marshal that. We cant simply
4688 * convert it to a one byte UTF8 character, because an
4689 * unicode character may need more that one byte in UTF8 */
4690 mono_mb_emit_ldarg (mb, argnum);
4692 case MONO_TYPE_TYPEDBYREF:
4693 case MONO_TYPE_FNPTR:
4695 g_warning ("type 0x%02x unknown", t->type);
4696 g_assert_not_reached ();
4701 /* call the native method */
4702 mono_mb_emit_native_call (mb, csig, method->addr);
4704 /* Set LastError if needed */
4705 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
4706 MonoMethodSignature *lasterr_sig;
4708 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4709 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
4710 lasterr_sig->pinvoke = 1;
4712 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
4715 /* convert the result */
4716 if (!sig->ret->byref) {
4717 MonoMarshalSpec *spec = mspecs [0];
4718 type = sig->ret->type;
4720 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
4721 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4726 case MONO_TYPE_VOID:
4741 /* no conversions necessary */
4742 mono_mb_emit_byte (mb, CEE_STLOC_3);
4744 case MONO_TYPE_VALUETYPE:
4745 klass = sig->ret->data.klass;
4746 if (klass->enumtype) {
4747 type = sig->ret->data.klass->enum_basetype->type;
4750 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4752 case MONO_TYPE_STRING:
4753 case MONO_TYPE_CLASS:
4754 case MONO_TYPE_OBJECT:
4755 case MONO_TYPE_BOOLEAN:
4756 case MONO_TYPE_ARRAY:
4757 case MONO_TYPE_SZARRAY:
4758 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
4760 case MONO_TYPE_CHAR:
4761 /* fixme: we need conversions here */
4762 mono_mb_emit_byte (mb, CEE_STLOC_3);
4764 case MONO_TYPE_TYPEDBYREF:
4765 case MONO_TYPE_FNPTR:
4767 g_warning ("return type 0x%02x unknown", sig->ret->type);
4768 g_assert_not_reached ();
4772 mono_mb_emit_byte (mb, CEE_STLOC_3);
4776 * Need to call this after converting the result since MONO_VTADDR needs
4777 * to be adjacent to the call instruction.
4779 emit_thread_interrupt_checkpoint (mb);
4781 /* we need to convert byref arguments back and free string arrays */
4782 for (i = 0; i < sig->param_count; i++) {
4783 MonoType *t = sig->params [i];
4784 MonoMarshalSpec *spec = mspecs [i + 1];
4786 argnum = i + sig->hasthis;
4788 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
4789 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
4794 case MONO_TYPE_STRING:
4795 case MONO_TYPE_VALUETYPE:
4796 case MONO_TYPE_CLASS:
4797 case MONO_TYPE_OBJECT:
4798 case MONO_TYPE_SZARRAY:
4799 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
4801 case MONO_TYPE_BOOLEAN:
4804 mono_mb_emit_ldarg (mb, argnum);
4805 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4806 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
4807 mono_mb_emit_byte (mb, CEE_NEG);
4808 mono_mb_emit_byte (mb, CEE_STIND_I1);
4812 if (!MONO_TYPE_IS_VOID(sig->ret))
4813 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4815 mono_mb_emit_byte (mb, CEE_RET);
4817 csig = mono_metadata_signature_dup (sig);
4819 res = mono_mb_create_and_cache (cache, method,
4820 mb, csig, csig->param_count + 16);
4823 for (i = sig->param_count; i >= 0; i--)
4824 g_free (mspecs [i]);
4827 /* 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)); */
4833 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
4835 static MonoReflectionType *
4836 type_from_handle (MonoType *handle)
4838 MonoDomain *domain = mono_domain_get ();
4839 MonoClass *klass = mono_class_from_mono_type (handle);
4841 MONO_ARCH_SAVE_REGS;
4843 mono_class_init (klass);
4844 return mono_type_get_object (domain, handle);
4848 * mono_marshal_get_isinst:
4849 * @klass: the type of the field
4851 * This method generates a function which can be used to check if an object is
4852 * an instance of the given type, icluding the case where the object is a proxy.
4853 * The generated function has the following signature:
4854 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
4857 mono_marshal_get_isinst (MonoClass *klass)
4859 static MonoMethodSignature *isint_sig = NULL;
4860 static GHashTable *isinst_hash = NULL;
4862 int pos_was_ok, pos_failed, pos_end, pos_end2;
4864 MonoMethodBuilder *mb;
4866 EnterCriticalSection (&marshal_mutex);
4868 isinst_hash = g_hash_table_new (NULL, NULL);
4870 res = g_hash_table_lookup (isinst_hash, klass);
4871 LeaveCriticalSection (&marshal_mutex);
4876 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4877 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
4878 isint_sig->ret = &mono_defaults.object_class->byval_arg;
4879 isint_sig->pinvoke = 0;
4882 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
4883 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
4886 mb->method->save_lmf = 1;
4888 /* check if the object is a proxy that needs special cast */
4889 mono_mb_emit_ldarg (mb, 0);
4890 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4891 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
4892 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4894 /* The result of MONO_ISINST can be:
4895 0) the type check succeeded
4896 1) the type check did not succeed
4897 2) a CanCastTo call is needed */
4899 mono_mb_emit_byte (mb, CEE_DUP);
4900 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4902 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
4903 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
4905 /* get the real proxy from the transparent proxy*/
4907 mono_mb_emit_ldarg (mb, 0);
4908 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4909 pos_end = mono_mb_emit_branch (mb, CEE_BR);
4913 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
4914 mono_mb_emit_byte (mb, CEE_LDNULL);
4915 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
4919 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
4920 mono_mb_emit_byte (mb, CEE_POP);
4921 mono_mb_emit_ldarg (mb, 0);
4925 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
4926 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
4927 mono_mb_emit_byte (mb, CEE_RET);
4929 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
4936 * mono_marshal_get_castclass:
4937 * @klass: the type of the field
4939 * This method generates a function which can be used to cast an object to
4940 * an instance of the given type, icluding the case where the object is a proxy.
4941 * The generated function has the following signature:
4942 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
4945 mono_marshal_get_castclass (MonoClass *klass)
4947 static MonoMethodSignature *castclass_sig = NULL;
4948 static GHashTable *castclass_hash = NULL;
4950 int pos_was_ok, pos_was_ok2;
4952 MonoMethodBuilder *mb;
4954 EnterCriticalSection (&marshal_mutex);
4955 if (!castclass_hash)
4956 castclass_hash = g_hash_table_new (NULL, NULL);
4958 res = g_hash_table_lookup (castclass_hash, klass);
4959 LeaveCriticalSection (&marshal_mutex);
4963 if (!castclass_sig) {
4964 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4965 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
4966 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
4967 castclass_sig->pinvoke = 0;
4970 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
4971 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
4974 mb->method->save_lmf = 1;
4976 /* check if the object is a proxy that needs special cast */
4977 mono_mb_emit_ldarg (mb, 0);
4978 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4979 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
4980 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4982 /* The result of MONO_ISINST can be:
4983 0) the cast is valid
4984 1) cast of unknown proxy type
4985 or an exception if the cast is is invalid
4988 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
4990 /* get the real proxy from the transparent proxy*/
4992 mono_mb_emit_ldarg (mb, 0);
4993 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
4994 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
4997 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
5000 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
5001 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
5002 mono_mb_emit_ldarg (mb, 0);
5005 mono_mb_emit_byte (mb, CEE_RET);
5007 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
5014 mono_marshal_get_proxy_cancast (MonoClass *klass)
5016 static MonoMethodSignature *from_handle_sig = NULL;
5017 static MonoMethodSignature *upgrade_proxy_sig = NULL;
5018 static MonoMethodSignature *isint_sig = NULL;
5019 static GHashTable *proxy_isinst_hash = NULL;
5021 int pos_failed, pos_end;
5023 MonoMethod *can_cast_to;
5024 MonoMethodDesc *desc;
5025 MonoMethodBuilder *mb;
5027 EnterCriticalSection (&marshal_mutex);
5028 if (!proxy_isinst_hash)
5029 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
5031 res = g_hash_table_lookup (proxy_isinst_hash, klass);
5032 LeaveCriticalSection (&marshal_mutex);
5037 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
5038 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
5039 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
5040 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
5041 upgrade_proxy_sig->pinvoke = 1;
5043 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5044 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
5045 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
5047 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5048 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
5049 isint_sig->ret = &mono_defaults.object_class->byval_arg;
5050 isint_sig->pinvoke = 0;
5053 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
5054 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
5057 mb->method->save_lmf = 1;
5059 /* get the real proxy from the transparent proxy*/
5060 mono_mb_emit_ldarg (mb, 0);
5061 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5062 mono_mb_emit_byte (mb, CEE_LDIND_I);
5064 /* get the refletion type from the type handle */
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, &klass->byval_arg));
5068 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5070 mono_mb_emit_ldarg (mb, 0);
5072 /* make the call to CanCastTo (type, ob) */
5073 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
5074 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
5075 g_assert (can_cast_to);
5076 mono_method_desc_free (desc);
5077 mono_mb_emit_byte (mb, CEE_CALLVIRT);
5078 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
5081 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
5083 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
5084 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5085 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
5086 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
5087 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5088 mono_mb_emit_ldarg (mb, 0);
5090 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
5091 emit_thread_interrupt_checkpoint (mb);
5093 mono_mb_emit_ldarg (mb, 0);
5094 pos_end = mono_mb_emit_branch (mb, CEE_BR);
5098 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
5099 mono_mb_emit_byte (mb, CEE_LDNULL);
5103 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
5104 mono_mb_emit_byte (mb, CEE_RET);
5106 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
5113 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
5116 klass = mono_class_from_mono_type (rtype->type);
5117 mono_upgrade_remote_class (((MonoObject*)tproxy)->vtable->domain, tproxy->remote_class, klass);
5118 ((MonoObject*)tproxy)->vtable = tproxy->remote_class->vtable;
5122 * mono_marshal_get_struct_to_ptr:
5125 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
5128 mono_marshal_get_struct_to_ptr (MonoClass *klass)
5130 MonoMethodBuilder *mb;
5131 static MonoMethod *stoptr = NULL;
5134 g_assert (klass != NULL);
5136 if (klass->str_to_ptr)
5137 return klass->str_to_ptr;
5140 stoptr = mono_find_method_by_name (mono_defaults.marshal_class, "StructureToPtr", 3);
5143 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
5145 if (klass->blittable) {
5146 mono_mb_emit_byte (mb, CEE_LDARG_1);
5147 mono_mb_emit_byte (mb, CEE_LDARG_0);
5148 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5149 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
5150 mono_mb_emit_byte (mb, CEE_PREFIX1);
5151 mono_mb_emit_byte (mb, CEE_CPBLK);
5154 /* allocate local 0 (pointer) src_ptr */
5155 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5156 /* allocate local 1 (pointer) dst_ptr */
5157 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5158 /* allocate local 2 (boolean) delete_old */
5159 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5160 mono_mb_emit_byte (mb, CEE_LDARG_2);
5161 mono_mb_emit_byte (mb, CEE_STLOC_2);
5163 /* initialize src_ptr to point to the start of object data */
5164 mono_mb_emit_byte (mb, CEE_LDARG_0);
5165 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5166 mono_mb_emit_byte (mb, CEE_STLOC_0);
5168 /* initialize dst_ptr */
5169 mono_mb_emit_byte (mb, CEE_LDARG_1);
5170 mono_mb_emit_byte (mb, CEE_STLOC_1);
5172 emit_struct_conv (mb, klass, FALSE);
5175 mono_mb_emit_byte (mb, CEE_RET);
5177 res = mono_mb_create_method (mb, stoptr->signature, 0);
5180 klass->str_to_ptr = res;
5185 * mono_marshal_get_ptr_to_struct:
5188 * generates IL code for PtrToStructure (IntPtr src, object structure)
5191 mono_marshal_get_ptr_to_struct (MonoClass *klass)
5193 MonoMethodBuilder *mb;
5194 static MonoMethod *ptostr = NULL;
5197 g_assert (klass != NULL);
5199 if (klass->ptr_to_str)
5200 return klass->ptr_to_str;
5203 ptostr = mono_find_method_by_name (mono_defaults.marshal_class, "PtrToStructure", 2);
5206 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
5208 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
5209 mono_mb_emit_byte (mb, CEE_LDARG_1);
5210 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5211 mono_mb_emit_byte (mb, CEE_LDARG_0);
5212 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
5213 mono_mb_emit_byte (mb, CEE_PREFIX1);
5214 mono_mb_emit_byte (mb, CEE_CPBLK);
5217 /* allocate local 0 (pointer) src_ptr */
5218 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5219 /* allocate local 1 (pointer) dst_ptr */
5220 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5222 /* initialize src_ptr to point to the start of object data */
5223 mono_mb_emit_byte (mb, CEE_LDARG_0);
5224 mono_mb_emit_byte (mb, CEE_STLOC_0);
5226 /* initialize dst_ptr */
5227 mono_mb_emit_byte (mb, CEE_LDARG_1);
5228 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5229 mono_mb_emit_byte (mb, CEE_STLOC_1);
5231 emit_struct_conv (mb, klass, TRUE);
5234 mono_mb_emit_byte (mb, CEE_RET);
5236 res = mono_mb_create_method (mb, ptostr->signature, 0);
5239 klass->ptr_to_str = res;
5244 * generates IL code for the synchronized wrapper: the generated method
5245 * calls METHOD while locking 'this' or the parent type.
5248 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
5250 static MonoMethodSignature *from_handle_sig = NULL;
5251 static MonoMethod *enter_method, *exit_method;
5252 MonoMethodSignature *sig;
5253 MonoExceptionClause *clause;
5254 MonoMethodHeader *header;
5255 MonoMethodBuilder *mb;
5258 int i, pos, this_local, ret_local = 0;
5262 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
5265 cache = method->klass->image->synchronized_cache;
5266 if ((res = mono_marshal_find_in_cache (cache, method)))
5269 sig = method->signature;
5271 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
5274 if (!MONO_TYPE_IS_VOID (sig->ret))
5275 ret_local = mono_mb_add_local (mb, sig->ret);
5278 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5280 clause = g_new0 (MonoExceptionClause, 1);
5281 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
5283 if (!enter_method) {
5284 MonoMethodDesc *desc;
5286 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
5287 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
5288 g_assert (enter_method);
5289 mono_method_desc_free (desc);
5290 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
5291 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
5292 g_assert (exit_method);
5293 mono_method_desc_free (desc);
5296 * GetTypeFromHandle isn't called as a managed method because it has
5297 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
5298 * transformed into something else by the JIT.
5300 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
5301 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
5302 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
5305 /* Push this or the type object */
5306 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
5307 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5308 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
5309 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
5310 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
5313 mono_mb_emit_ldarg (mb, 0);
5314 mono_mb_emit_stloc (mb, this_local);
5316 /* Call Monitor::Enter() */
5317 mono_mb_emit_ldloc (mb, this_local);
5318 mono_mb_emit_managed_call (mb, enter_method, NULL);
5320 clause->try_offset = mb->pos;
5322 /* Call the method */
5324 mono_mb_emit_ldarg (mb, 0);
5325 for (i = 0; i < sig->param_count; i++)
5326 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
5327 mono_mb_emit_managed_call (mb, method, method->signature);
5328 if (!MONO_TYPE_IS_VOID (sig->ret))
5329 mono_mb_emit_stloc (mb, ret_local);
5331 mono_mb_emit_byte (mb, CEE_LEAVE);
5333 mono_mb_emit_i4 (mb, 0);
5335 clause->try_len = mb->pos - clause->try_offset;
5336 clause->handler_offset = mb->pos;
5338 /* Call Monitor::Exit() */
5339 mono_mb_emit_ldloc (mb, this_local);
5340 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
5341 mono_mb_emit_managed_call (mb, exit_method, NULL);
5342 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
5344 clause->handler_len = mb->pos - clause->handler_offset;
5346 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
5347 if (!MONO_TYPE_IS_VOID (sig->ret))
5348 mono_mb_emit_ldloc (mb, ret_local);
5349 mono_mb_emit_byte (mb, CEE_RET);
5351 res = mono_mb_create_and_cache (cache, method,
5352 mb, sig, sig->param_count + 16);
5355 header = ((MonoMethodNormal *)res)->header;
5356 header->num_clauses = 1;
5357 header->clauses = clause;
5363 mono_marshal_get_stelemref ()
5365 static MonoMethod* ret = NULL;
5366 MonoMethodSignature *sig;
5367 MonoMethodBuilder *mb;
5369 guint32 b1, b2, b3, b4;
5376 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
5379 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5381 /* void stelemref (void* array, int idx, void* value) */
5382 sig->ret = &mono_defaults.void_class->byval_arg;
5383 sig->params [0] = &mono_defaults.int_class->byval_arg;
5384 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
5385 sig->params [2] = &mono_defaults.int_class->byval_arg;
5387 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5388 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5396 aklass = array->vtable->klass->element_class;
5397 vklass = value->vtable->klass;
5399 if (vklass->idepth < aklass->idepth)
5402 if (vklass->supertypes [aklass->idepth - 1] != aklass)
5406 array [idx] = value;
5410 if (mono_object_isinst (value, aklass))
5413 throw new ArrayTypeMismatchException ();
5417 mono_mb_emit_ldarg (mb, 0);
5418 mono_mb_emit_ldarg (mb, 1);
5419 mono_mb_emit_byte (mb, CEE_LDELEMA);
5420 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.int_class));
5421 mono_mb_emit_byte (mb, CEE_POP);
5423 /* if (!value) goto do_store */
5424 mono_mb_emit_ldarg (mb, 2);
5425 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5427 /* aklass = array->vtable->klass->element_class */
5428 mono_mb_emit_ldarg (mb, 0);
5429 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
5430 mono_mb_emit_byte (mb, CEE_LDIND_I);
5431 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
5432 mono_mb_emit_byte (mb, CEE_LDIND_I);
5433 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
5434 mono_mb_emit_byte (mb, CEE_LDIND_I);
5435 mono_mb_emit_stloc (mb, aklass);
5437 /* vklass = value->vtable->klass */
5438 mono_mb_emit_ldarg (mb, 2);
5439 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
5440 mono_mb_emit_byte (mb, CEE_LDIND_I);
5441 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
5442 mono_mb_emit_byte (mb, CEE_LDIND_I);
5443 mono_mb_emit_stloc (mb, vklass);
5445 /* if (vklass->idepth < aklass->idepth) goto failue */
5446 mono_mb_emit_ldloc (mb, vklass);
5447 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5448 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5450 mono_mb_emit_ldloc (mb, aklass);
5451 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5452 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5454 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
5456 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
5457 mono_mb_emit_ldloc (mb, vklass);
5458 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
5459 mono_mb_emit_byte (mb, CEE_LDIND_I);
5461 mono_mb_emit_ldloc (mb, aklass);
5462 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
5463 mono_mb_emit_byte (mb, CEE_LDIND_I4);
5464 mono_mb_emit_icon (mb, 1);
5465 mono_mb_emit_byte (mb, CEE_SUB);
5466 mono_mb_emit_icon (mb, sizeof (void*));
5467 mono_mb_emit_byte (mb, CEE_MUL);
5468 mono_mb_emit_byte (mb, CEE_ADD);
5469 mono_mb_emit_byte (mb, CEE_LDIND_I);
5471 mono_mb_emit_ldloc (mb, aklass);
5473 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
5477 mono_mb_patch_addr (mb, b1, mb->pos - (b1 + 4));
5478 mono_mb_emit_ldarg (mb, 0);
5479 mono_mb_emit_ldarg (mb, 1);
5480 mono_mb_emit_ldarg (mb, 2);
5481 mono_mb_emit_byte (mb, CEE_STELEM_I);
5483 mono_mb_emit_byte (mb, CEE_RET);
5486 mono_mb_patch_addr (mb, b2, mb->pos - (b2 + 4));
5487 mono_mb_patch_addr (mb, b3, mb->pos - (b3 + 4));
5489 mono_mb_emit_ldarg (mb, 2);
5490 mono_mb_emit_ldloc (mb, aklass);
5491 mono_mb_emit_icall (mb, mono_object_isinst);
5493 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5494 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
5495 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
5497 mono_mb_emit_byte (mb, CEE_RET);
5498 ret = mono_mb_create_method (mb, sig, 4);
5503 mono_marshal_alloc (gulong size)
5507 #ifdef PLATFORM_WIN32
5508 res = CoTaskMemAlloc (size);
5510 res = g_try_malloc ((gulong)size);
5512 mono_gc_out_of_memory ((gulong)size);
5518 mono_marshal_free (gpointer ptr)
5520 #ifdef PLATFORM_WIN32
5521 CoTaskMemFree (ptr);
5528 mono_marshal_free_array (gpointer *ptr, int size)
5535 for (i = 0; i < size; i++)
5541 mono_marshal_realloc (gpointer ptr, gpointer size)
5543 MONO_ARCH_SAVE_REGS;
5545 return g_try_realloc (ptr, (gulong)size);
5549 mono_marshal_string_to_utf16 (MonoString *s)
5551 return s ? mono_string_chars (s) : NULL;
5555 * mono_marshal_set_last_error:
5557 * This function is invoked to set the last error value from a P/Invoke call
5558 * which has SetLastError set.
5561 mono_marshal_set_last_error (void)
5564 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
5566 TlsSetValue (last_error_tls_id, (gpointer)errno);
5571 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
5572 gpointer dest, gint32 length)
5577 MONO_ARCH_SAVE_REGS;
5579 MONO_CHECK_ARG_NULL (src);
5580 MONO_CHECK_ARG_NULL (dest);
5582 g_assert (src->obj.vtable->klass->rank == 1);
5583 g_assert (start_index >= 0);
5584 g_assert (length >= 0);
5585 g_assert (start_index + length <= mono_array_length (src));
5587 element_size = mono_array_element_size (src->obj.vtable->klass);
5589 source_addr = mono_array_addr_with_size (src, element_size, start_index);
5591 memcpy (dest, source_addr, length * element_size);
5595 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
5596 MonoArray *dest, gint32 length)
5601 MONO_ARCH_SAVE_REGS;
5603 MONO_CHECK_ARG_NULL (src);
5604 MONO_CHECK_ARG_NULL (dest);
5606 g_assert (dest->obj.vtable->klass->rank == 1);
5607 g_assert (start_index >= 0);
5608 g_assert (length >= 0);
5609 g_assert (start_index + length <= mono_array_length (dest));
5611 element_size = mono_array_element_size (dest->obj.vtable->klass);
5613 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
5615 memcpy (dest_addr, src, length * element_size);
5618 #if NO_UNALIGNED_ACCESS
5619 #define RETURN_UNALIGNED(type, addr) \
5622 memcpy(&val, p + offset, sizeof(val)); \
5625 #define WRITE_UNALIGNED(type, addr, val) \
5626 memcpy(addr, &val, sizeof(type))
5628 #define RETURN_UNALIGNED(type, addr) \
5629 return *(type*)(p + offset);
5630 #define WRITE_UNALIGNED(type, addr, val) \
5631 (*(type *)(addr) = (val))
5635 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
5639 MONO_ARCH_SAVE_REGS;
5641 RETURN_UNALIGNED(gpointer, p + offset);
5645 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
5649 MONO_ARCH_SAVE_REGS;
5651 return *(unsigned char*)(p + offset);
5655 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
5659 MONO_ARCH_SAVE_REGS;
5661 RETURN_UNALIGNED(gint16, p + offset);
5665 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
5669 MONO_ARCH_SAVE_REGS;
5671 RETURN_UNALIGNED(gint32, p + offset);
5675 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
5679 MONO_ARCH_SAVE_REGS;
5681 RETURN_UNALIGNED(gint64, p + offset);
5685 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
5689 MONO_ARCH_SAVE_REGS;
5691 *(unsigned char*)(p + offset) = val;
5695 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
5699 MONO_ARCH_SAVE_REGS;
5701 WRITE_UNALIGNED(gpointer, p + offset, val);
5705 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
5709 MONO_ARCH_SAVE_REGS;
5711 WRITE_UNALIGNED(gint16, p + offset, val);
5715 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
5719 MONO_ARCH_SAVE_REGS;
5721 WRITE_UNALIGNED(gint32, p + offset, val);
5725 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
5729 MONO_ARCH_SAVE_REGS;
5731 WRITE_UNALIGNED(gint64, p + offset, val);
5735 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
5737 MONO_ARCH_SAVE_REGS;
5740 return mono_string_new (mono_domain_get (), "");
5742 return mono_string_new (mono_domain_get (), ptr);
5746 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
5748 MONO_ARCH_SAVE_REGS;
5751 return mono_string_new (mono_domain_get (), "");
5753 return mono_string_new_len (mono_domain_get (), ptr, len);
5757 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
5759 MonoDomain *domain = mono_domain_get ();
5763 MONO_ARCH_SAVE_REGS;
5766 return mono_string_new (mono_domain_get (), "");
5771 return mono_string_new_utf16 (domain, ptr, len);
5775 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
5777 MonoDomain *domain = mono_domain_get ();
5779 MONO_ARCH_SAVE_REGS;
5782 return mono_string_new (mono_domain_get (), "");
5784 return mono_string_new_utf16 (domain, ptr, len);
5788 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
5790 MONO_ARCH_SAVE_REGS;
5792 g_warning ("PtrToStringBSTR not implemented");
5793 g_assert_not_reached ();
5799 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
5801 MONO_ARCH_SAVE_REGS;
5803 return ((guint32)TlsGetValue (last_error_tls_id));
5807 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
5813 MONO_ARCH_SAVE_REGS;
5815 MONO_CHECK_ARG_NULL (rtype);
5818 klass = mono_class_from_mono_type (type);
5819 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
5821 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5825 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
5826 exc = mono_get_exception_argument ("t", msg);
5828 mono_raise_exception (exc);
5832 return mono_class_native_size (klass, NULL);
5836 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
5841 MONO_ARCH_SAVE_REGS;
5843 MONO_CHECK_ARG_NULL (obj);
5844 MONO_CHECK_ARG_NULL (dst);
5846 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
5850 pa [2] = &delete_old;
5852 mono_runtime_invoke (method, NULL, pa, NULL);
5856 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
5861 MONO_ARCH_SAVE_REGS;
5863 MONO_CHECK_ARG_NULL (src);
5864 MONO_CHECK_ARG_NULL (dst);
5866 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
5871 mono_runtime_invoke (method, NULL, pa, NULL);
5875 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
5877 MonoDomain *domain = mono_domain_get ();
5880 MONO_ARCH_SAVE_REGS;
5882 MONO_CHECK_ARG_NULL (src);
5883 MONO_CHECK_ARG_NULL (type);
5885 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
5887 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
5893 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
5895 MonoMarshalType *info;
5898 int i, match_index = -1;
5900 MONO_ARCH_SAVE_REGS;
5902 MONO_CHECK_ARG_NULL (type);
5903 MONO_CHECK_ARG_NULL (field_name);
5905 fname = mono_string_to_utf8 (field_name);
5906 klass = mono_class_from_mono_type (type->type);
5908 while (klass && match_index == -1) {
5909 for (i = 0; i < klass->field.count; ++i) {
5910 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
5916 if (match_index == -1)
5917 klass = klass->parent;
5922 if(match_index == -1) {
5926 /* Get back original class instance */
5927 klass = mono_class_from_mono_type (type->type);
5929 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
5930 exc = mono_get_exception_argument ("fieldName", tmp);
5933 mono_raise_exception ((MonoException*)exc);
5936 info = mono_marshal_load_type_info (klass);
5937 return info->fields [match_index].offset;
5941 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
5943 MONO_ARCH_SAVE_REGS;
5945 return mono_string_to_utf8 (string);
5949 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
5951 MONO_ARCH_SAVE_REGS;
5956 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
5960 mono_struct_delete_old (MonoClass *klass, char *ptr)
5962 MonoMarshalType *info;
5965 info = mono_marshal_load_type_info (klass);
5967 for (i = 0; i < info->num_fields; i++) {
5968 MonoMarshalNative ntype;
5969 MonoMarshalConv conv;
5970 MonoType *ftype = info->fields [i].field->type;
5973 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
5976 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
5977 klass->unicode, &conv);
5979 cpos = ptr + info->fields [i].offset;
5982 case MONO_MARSHAL_CONV_NONE:
5983 if (MONO_TYPE_ISSTRUCT (ftype)) {
5984 mono_struct_delete_old (ftype->data.klass, cpos);
5988 case MONO_MARSHAL_CONV_STR_LPWSTR:
5989 case MONO_MARSHAL_CONV_STR_LPSTR:
5990 case MONO_MARSHAL_CONV_STR_LPTSTR:
5991 case MONO_MARSHAL_CONV_STR_BSTR:
5992 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
5993 case MONO_MARSHAL_CONV_STR_TBSTR:
5994 mono_marshal_free (*(gpointer *)cpos);
6003 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
6007 MONO_ARCH_SAVE_REGS;
6009 MONO_CHECK_ARG_NULL (src);
6010 MONO_CHECK_ARG_NULL (type);
6012 klass = mono_class_from_mono_type (type->type);
6014 mono_struct_delete_old (klass, (char *)src);
6018 /* FIXME: on win32 we should probably use GlobalAlloc(). */
6020 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
6024 MONO_ARCH_SAVE_REGS;
6026 if ((gulong)size == 0)
6027 /* This returns a valid pointer for size 0 on MS.NET */
6030 res = g_try_malloc ((gulong)size);
6032 mono_gc_out_of_memory ((gulong)size);
6038 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
6040 MONO_ARCH_SAVE_REGS;
6046 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
6048 MONO_ARCH_SAVE_REGS;
6050 #ifdef PLATFORM_WIN32
6051 return CoTaskMemAlloc (size);
6053 return g_try_malloc ((gulong)size);
6058 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
6060 MONO_ARCH_SAVE_REGS;
6062 #ifdef PLATFORM_WIN32
6063 CoTaskMemFree (ptr);
6070 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
6072 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
6076 mono_marshal_load_type_info (MonoClass* klass)
6078 int i, j, count = 0, native_size = 0, min_align = 1;
6079 MonoMarshalType *info;
6082 g_assert (klass != NULL);
6084 if (klass->marshal_info)
6085 return klass->marshal_info;
6088 mono_class_init (klass);
6090 for (i = 0; i < klass->field.count; ++i) {
6091 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
6093 if (mono_field_is_deleted (&klass->fields [i]))
6098 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
6100 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
6101 info->num_fields = count;
6103 /* Try to find a size for this type in metadata */
6104 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
6106 if (klass->parent) {
6107 int parent_size = mono_class_native_size (klass->parent, NULL);
6109 /* Add parent size to real size */
6110 native_size += parent_size;
6111 info->native_size = parent_size;
6114 for (j = i = 0; i < klass->field.count; ++i) {
6117 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
6120 if (mono_field_is_deleted (&klass->fields [i]))
6122 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
6123 mono_metadata_field_info (klass->image, klass->field.first + i,
6124 NULL, NULL, &info->fields [j].mspec);
6126 info->fields [j].field = &klass->fields [i];
6128 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
6129 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
6130 /* This field is a hack inserted by MCS to empty structures */
6135 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
6136 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
6137 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
6138 &align, TRUE, klass->unicode);
6139 align = klass->packing_size ? MIN (klass->packing_size, align): align;
6140 min_align = MAX (align, min_align);
6141 info->fields [j].offset = info->native_size;
6142 info->fields [j].offset += align - 1;
6143 info->fields [j].offset &= ~(align - 1);
6144 info->native_size = info->fields [j].offset + size;
6146 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
6147 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
6148 &align, TRUE, klass->unicode);
6149 align = klass->packing_size ? MIN (klass->packing_size, align): align;
6150 min_align = MAX (align, min_align);
6151 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
6152 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
6158 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6159 info->native_size = MAX (native_size, info->native_size);
6162 if (info->native_size & (min_align - 1)) {
6163 info->native_size += min_align - 1;
6164 info->native_size &= ~(min_align - 1);
6167 /* Update the class's blittable info, if the layouts don't match */
6168 if (info->native_size != mono_class_value_size (klass, NULL))
6169 klass->blittable = FALSE;
6171 /* If this is an array type, ensure that we have element info */
6172 if (klass->element_class) {
6173 mono_marshal_load_type_info (klass->element_class);
6176 return klass->marshal_info;
6180 * mono_class_native_size:
6183 * Returns: the native size of an object instance (when marshaled
6184 * to unmanaged code)
6187 mono_class_native_size (MonoClass *klass, guint32 *align)
6190 if (!klass->marshal_info)
6191 mono_marshal_load_type_info (klass);
6194 *align = klass->min_align;
6196 return klass->marshal_info->native_size;
6200 * mono_type_native_stack_size:
6201 * @t: the type to return the size it uses on the stack
6203 * Returns: the number of bytes required to hold an instance of this
6204 * type on the native stack
6207 mono_type_native_stack_size (MonoType *t, gint *align)
6211 g_assert (t != NULL);
6222 case MONO_TYPE_BOOLEAN:
6223 case MONO_TYPE_CHAR:
6232 case MONO_TYPE_STRING:
6233 case MONO_TYPE_OBJECT:
6234 case MONO_TYPE_CLASS:
6235 case MONO_TYPE_SZARRAY:
6237 case MONO_TYPE_FNPTR:
6238 case MONO_TYPE_ARRAY:
6239 case MONO_TYPE_TYPEDBYREF:
6250 case MONO_TYPE_VALUETYPE: {
6253 if (t->data.klass->enumtype)
6254 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
6256 size = mono_class_native_size (t->data.klass, align);
6257 *align = *align + 3;
6267 g_error ("type 0x%02x unknown", t->type);
6272 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
6273 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
6274 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
6275 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
6278 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
6279 gboolean as_field, gboolean unicode)
6281 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
6284 switch (native_type) {
6285 case MONO_NATIVE_BOOLEAN:
6288 case MONO_NATIVE_I1:
6289 case MONO_NATIVE_U1:
6292 case MONO_NATIVE_I2:
6293 case MONO_NATIVE_U2:
6294 case MONO_NATIVE_VARIANTBOOL:
6297 case MONO_NATIVE_I4:
6298 case MONO_NATIVE_U4:
6299 case MONO_NATIVE_ERROR:
6302 case MONO_NATIVE_I8:
6303 case MONO_NATIVE_U8:
6304 *align = ALIGNMENT(guint64);
6306 case MONO_NATIVE_R4:
6309 case MONO_NATIVE_R8:
6310 *align = ALIGNMENT(double);
6312 case MONO_NATIVE_INT:
6313 case MONO_NATIVE_UINT:
6314 case MONO_NATIVE_LPSTR:
6315 case MONO_NATIVE_LPWSTR:
6316 case MONO_NATIVE_LPTSTR:
6317 case MONO_NATIVE_BSTR:
6318 case MONO_NATIVE_ANSIBSTR:
6319 case MONO_NATIVE_TBSTR:
6320 case MONO_NATIVE_LPARRAY:
6321 case MONO_NATIVE_SAFEARRAY:
6322 case MONO_NATIVE_IUNKNOWN:
6323 case MONO_NATIVE_IDISPATCH:
6324 case MONO_NATIVE_INTERFACE:
6325 case MONO_NATIVE_ASANY:
6326 case MONO_NATIVE_FUNC:
6327 case MONO_NATIVE_LPSTRUCT:
6328 *align = ALIGNMENT(gpointer);
6329 return sizeof (gpointer);
6330 case MONO_NATIVE_STRUCT:
6331 klass = mono_class_from_mono_type (type);
6332 return mono_class_native_size (klass, align);
6333 case MONO_NATIVE_BYVALTSTR: {
6334 int esize = unicode ? 2: 1;
6337 return mspec->data.array_data.num_elem * esize;
6339 case MONO_NATIVE_BYVALARRAY: {
6341 klass = mono_class_from_mono_type (type);
6342 esize = mono_class_native_size (klass->element_class, align);
6344 return mspec->data.array_data.num_elem * esize;
6346 case MONO_NATIVE_CUSTOM:
6347 g_assert_not_reached ();
6349 case MONO_NATIVE_CURRENCY:
6350 case MONO_NATIVE_VBBYREFSTR:
6352 g_error ("native type %02x not implemented", native_type);
6355 g_assert_not_reached ();
6360 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
6368 t = &o->vtable->klass->byval_arg;
6375 case MONO_TYPE_BOOLEAN:
6378 case MONO_TYPE_CHAR:
6383 return mono_object_unbox (o);
6385 case MONO_TYPE_STRING:
6386 switch (string_encoding) {
6387 case MONO_NATIVE_LPWSTR:
6388 return mono_string_to_utf16 ((MonoString*)o);
6390 case MONO_NATIVE_LPSTR:
6391 return mono_string_to_lpstr ((MonoString*)o);
6394 g_warning ("marshaling conversion %d not implemented", string_encoding);
6395 g_assert_not_reached ();
6398 case MONO_TYPE_CLASS:
6399 case MONO_TYPE_VALUETYPE: {
6403 MonoBoolean delete_old = FALSE;
6405 klass = t->data.klass;
6407 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
6410 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6411 klass->blittable || klass->enumtype)
6412 return mono_object_unbox (o);
6414 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
6416 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
6420 pa [2] = &delete_old;
6422 mono_runtime_invoke (method, NULL, pa, NULL);
6428 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
6434 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
6442 t = &o->vtable->klass->byval_arg;
6444 case MONO_TYPE_STRING:
6445 switch (string_encoding) {
6446 case MONO_NATIVE_LPWSTR:
6447 case MONO_NATIVE_LPSTR:
6448 mono_marshal_free (ptr);
6451 g_warning ("marshaling conversion %d not implemented", string_encoding);
6452 g_assert_not_reached ();
6455 case MONO_TYPE_CLASS:
6456 case MONO_TYPE_VALUETYPE: {
6457 klass = t->data.klass;
6459 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6460 klass->blittable || klass->enumtype)
6463 mono_struct_delete_old (klass, ptr);
6465 mono_marshal_free (ptr);