2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threadpool.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internal.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internal.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/utils/mono-counters.h"
42 #include "mono/utils/mono-tls.h"
43 #include "mono/utils/mono-memory-model.h"
44 #include "mono/utils/atomic.h"
48 /* #define DEBUG_RUNTIME_CODE */
50 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
54 #include "mono/cil/opcode.def"
60 * This mutex protects the various marshalling related caches in MonoImage
61 * and a few other data structures static to this file.
63 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
64 * runtime locking latice. Which means it can take simple locks suck as the image lock.
66 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
67 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
68 static mono_mutex_t marshal_mutex;
69 static gboolean marshal_mutex_initialized;
71 static MonoNativeTlsKey last_error_tls_id;
73 static MonoNativeTlsKey load_type_info_tls_id;
75 static gboolean use_aot_wrappers;
78 delegate_hash_table_add (MonoDelegate *d);
81 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
84 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
87 mono_struct_delete_old (MonoClass *klass, char *ptr);
90 mono_marshal_string_to_utf16 (MonoString *s);
93 mono_marshal_string_to_utf16_copy (MonoString *s);
96 mono_string_to_lpstr (MonoString *string_obj);
98 static MonoStringBuilder *
99 mono_string_utf8_to_builder2 (char *text);
101 static MonoStringBuilder *
102 mono_string_utf16_to_builder2 (gunichar2 *text);
105 mono_string_new_len_wrapper (const char *text, guint length);
108 mono_string_from_byvalstr (const char *data, int len);
111 mono_string_from_byvalwstr (gunichar2 *data, int len);
114 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
117 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
120 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
123 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
125 static MonoAsyncResult *
126 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
129 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_marshal_set_last_error_windows (int error);
134 static void init_safe_handle (void);
136 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
137 static MonoMethod *sh_dangerous_add_ref;
138 static MonoMethod *sh_dangerous_release;
144 sh_dangerous_add_ref = mono_class_get_method_from_name (
145 mono_defaults.safehandle_class, "DangerousAddRef", 1);
146 sh_dangerous_release = mono_class_get_method_from_name (
147 mono_defaults.safehandle_class, "DangerousRelease", 0);
151 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
153 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
155 mono_register_jit_icall (func, name, sig, save);
158 static MonoMethodSignature*
159 signature_dup (MonoImage *image, MonoMethodSignature *sig)
161 MonoMethodSignature *res;
164 res = mono_metadata_signature_alloc (image, sig->param_count);
165 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
166 memcpy (res, sig, sigsize);
172 mono_signature_no_pinvoke (MonoMethod *method)
174 MonoMethodSignature *sig = mono_method_signature (method);
176 sig = signature_dup (method->klass->image, sig);
177 sig->pinvoke = FALSE;
184 mono_marshal_init_tls (void)
186 mono_native_tls_alloc (&last_error_tls_id, NULL);
187 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
191 mono_marshal_init (void)
193 static gboolean module_initialized = FALSE;
195 if (!module_initialized) {
196 module_initialized = TRUE;
197 mono_mutex_init_recursive (&marshal_mutex);
198 marshal_mutex_initialized = TRUE;
200 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
201 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
202 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
203 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
204 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
205 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
206 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
207 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
208 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
209 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
210 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
211 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
212 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
213 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
214 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
215 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
216 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
217 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
218 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
219 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
220 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
221 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
222 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
223 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
224 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
225 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
226 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
227 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
228 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
229 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
230 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
231 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
232 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
233 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
234 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
235 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
236 register_icall (g_free, "g_free", "void ptr", FALSE);
237 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
238 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
239 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
240 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
241 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
242 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
243 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
244 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
245 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
247 mono_cominterop_init ();
248 mono_remoting_init ();
253 mono_marshal_cleanup (void)
255 mono_cominterop_cleanup ();
257 mono_native_tls_free (load_type_info_tls_id);
258 mono_native_tls_free (last_error_tls_id);
259 mono_mutex_destroy (&marshal_mutex);
260 marshal_mutex_initialized = FALSE;
264 mono_marshal_lock_internal (void)
266 mono_marshal_lock ();
270 mono_marshal_unlock_internal (void)
272 mono_marshal_unlock ();
276 mono_delegate_to_ftnptr (MonoDelegate *delegate)
278 MonoMethod *method, *wrapper;
280 uint32_t target_handle = 0;
285 if (delegate->delegate_trampoline)
286 return delegate->delegate_trampoline;
288 klass = ((MonoObject *)delegate)->vtable->klass;
289 g_assert (klass->delegate);
291 method = delegate->method;
293 if (mono_method_signature (method)->pinvoke) {
294 const char *exc_class, *exc_arg;
297 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
299 g_assert (exc_class);
300 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
305 if (delegate->target) {
306 /* Produce a location which can be embedded in JITted code */
307 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
310 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
312 delegate->delegate_trampoline = mono_compile_method (wrapper);
314 // Add the delegate to the delegate hash table
315 delegate_hash_table_add (delegate);
317 /* when the object is collected, collect the dynamic method, too */
318 mono_object_register_finalizer ((MonoObject*)delegate);
320 return delegate->delegate_trampoline;
324 * this hash table maps from a delegate trampoline object to a weak reference
325 * of the delegate. As an optimizations with a non-moving GC we store the
326 * object pointer itself, otherwise we use a GC handle.
328 static GHashTable *delegate_hash_table;
331 delegate_hash_table_new (void) {
332 return g_hash_table_new (NULL, NULL);
336 delegate_hash_table_remove (MonoDelegate *d)
338 guint32 gchandle = 0;
340 mono_marshal_lock ();
341 if (delegate_hash_table == NULL)
342 delegate_hash_table = delegate_hash_table_new ();
343 if (mono_gc_is_moving ())
344 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
345 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
346 mono_marshal_unlock ();
347 if (mono_gc_is_moving ())
348 mono_gchandle_free (gchandle);
352 delegate_hash_table_add (MonoDelegate *d)
355 guint32 old_gchandle;
357 mono_marshal_lock ();
358 if (delegate_hash_table == NULL)
359 delegate_hash_table = delegate_hash_table_new ();
360 if (mono_gc_is_moving ()) {
361 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
362 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
363 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
365 mono_gchandle_free (old_gchandle);
367 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
369 mono_marshal_unlock ();
373 * mono_marshal_use_aot_wrappers:
375 * Instructs this module to use AOT compatible wrappers.
378 mono_marshal_use_aot_wrappers (gboolean use)
380 use_aot_wrappers = use;
384 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
386 static MonoClass *UnmanagedFunctionPointerAttribute;
387 MonoCustomAttrInfo *cinfo;
388 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
390 if (!UnmanagedFunctionPointerAttribute)
391 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
393 /* The attribute is only available in Net 2.0 */
394 if (UnmanagedFunctionPointerAttribute) {
396 * The pinvoke attributes are stored in a real custom attribute so we have to
399 cinfo = mono_custom_attrs_from_class (klass);
400 if (cinfo && !mono_runtime_get_no_exec ()) {
402 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
404 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
406 if (!mono_error_ok (&error)) {
407 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
408 mono_error_cleanup (&error);
412 mono_custom_attrs_free (cinfo);
418 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
426 mono_marshal_lock ();
427 if (delegate_hash_table == NULL)
428 delegate_hash_table = delegate_hash_table_new ();
430 if (mono_gc_is_moving ()) {
431 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
432 mono_marshal_unlock ();
434 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
438 d = g_hash_table_lookup (delegate_hash_table, ftn);
439 mono_marshal_unlock ();
442 /* This is a native function, so construct a delegate for it */
443 MonoMethodSignature *sig;
445 MonoMarshalSpec **mspecs;
446 MonoMethod *invoke = mono_get_delegate_invoke (klass);
447 MonoMethodPInvoke piinfo;
451 if (use_aot_wrappers) {
452 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
453 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
455 memset (&piinfo, 0, sizeof (piinfo));
456 parse_unmanaged_function_pointer_attr (klass, &piinfo);
458 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
459 mono_method_get_marshal_info (invoke, mspecs);
460 /* Freed below so don't alloc from mempool */
461 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
464 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
467 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
469 mono_metadata_free_marshal_spec (mspecs [i]);
474 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
475 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
478 if (d->object.vtable->domain != mono_domain_get ())
479 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
485 mono_delegate_free_ftnptr (MonoDelegate *delegate)
490 delegate_hash_table_remove (delegate);
492 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
494 if (!delegate->target) {
495 /* The wrapper method is shared between delegates -> no need to free it */
504 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
507 method = mono_jit_info_get_method (ji);
508 method_data = ((MonoMethodWrapper*)method)->method_data;
510 /*the target gchandle is the first entry after size and the wrapper itself.*/
511 gchandle = GPOINTER_TO_UINT (method_data [2]);
514 mono_gchandle_free (gchandle);
516 mono_runtime_free_method (mono_object_domain (delegate), method);
521 mono_string_from_byvalstr (const char *data, int max_len)
523 MonoDomain *domain = mono_domain_get ();
529 while (len < max_len - 1 && data [len])
532 return mono_string_new_len (domain, data, len);
536 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
538 MonoDomain *domain = mono_domain_get ();
544 while (data [len]) len++;
546 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
550 mono_array_to_savearray (MonoArray *array)
555 g_assert_not_reached ();
560 mono_array_to_lparray (MonoArray *array)
563 gpointer *nativeArray = NULL;
564 int nativeArraySize = 0;
574 klass = array->obj.vtable->klass;
576 switch (klass->element_class->byval_arg.type) {
578 g_assert_not_reached ();
580 case MONO_TYPE_CLASS:
581 nativeArraySize = array->max_length;
582 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
583 for(i = 0; i < nativeArraySize; ++i)
584 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
587 case MONO_TYPE_BOOLEAN:
600 case MONO_TYPE_VALUETYPE:
604 case MONO_TYPE_GENERICINST:
605 case MONO_TYPE_OBJECT:
606 case MONO_TYPE_ARRAY:
607 case MONO_TYPE_SZARRAY:
608 case MONO_TYPE_STRING:
610 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
611 g_assert_not_reached ();
614 return array->vector;
618 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
629 klass = array->obj.vtable->klass;
631 switch (klass->element_class->byval_arg.type) {
632 case MONO_TYPE_CLASS:
633 for(i = 0; i < array->max_length; ++i)
634 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
642 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
644 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
646 if (elclass == mono_defaults.byte_class) {
647 GError *error = NULL;
651 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
654 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
658 g_error_free (error);
661 g_assert_not_reached ();
665 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
667 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
671 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
673 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
675 if (elclass == mono_defaults.byte_class) {
677 GError *error = NULL;
679 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
681 MonoException *exc = mono_get_exception_argument ("string", error->message);
682 g_error_free (error);
683 mono_raise_exception (exc);
686 memcpy (native_arr, as, MIN (strlen (as), elnum));
689 g_assert_not_reached ();
694 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
696 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
700 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
702 GError *error = NULL;
712 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
714 if (items_written > mono_stringbuilder_capacity (sb))
715 items_written = mono_stringbuilder_capacity (sb);
718 if (! sb->str || sb->str == sb->cached_str)
719 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
721 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
722 sb->length = items_written;
723 sb->cached_str = NULL;
725 g_error_free (error);
731 mono_string_utf8_to_builder2 (char *text)
734 MonoStringBuilder *sb;
735 static MonoClass *string_builder_class;
736 static MonoMethod *sb_ctor;
743 if (!string_builder_class) {
744 MonoMethodDesc *desc;
746 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
747 g_assert (string_builder_class);
748 desc = mono_method_desc_new (":.ctor(int)", FALSE);
749 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
751 mono_method_desc_free (desc);
756 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
759 mono_runtime_invoke (sb_ctor, sb, args, &exc);
762 mono_string_utf8_to_builder (sb, text);
768 * FIXME: This routine does not seem to do what it seems to do
769 * the @text is never copied into the string builder
772 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
779 g_assert (mono_string_chars (sb->str) == text);
781 for (len = 0; text [len] != 0; ++len)
788 mono_string_utf16_to_builder2 (gunichar2 *text)
791 MonoStringBuilder *sb;
792 static MonoClass *string_builder_class;
793 static MonoMethod *sb_ctor;
800 if (!string_builder_class) {
801 MonoMethodDesc *desc;
803 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
804 g_assert (string_builder_class);
805 desc = mono_method_desc_new (":.ctor(int)", FALSE);
806 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
808 mono_method_desc_free (desc);
811 for (len = 0; text [len] != 0; ++len)
814 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
817 mono_runtime_invoke (sb_ctor, sb, args, &exc);
821 memcpy (mono_string_chars (sb->str), text, len * 2);
827 * mono_string_builder_to_utf8:
828 * @sb: the string builder
830 * Converts to utf8 the contents of the MonoStringBuilder.
832 * Returns: a utf8 string with the contents of the StringBuilder.
834 * The return value must be released with g_free.
837 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
839 GError *error = NULL;
840 gchar *tmp, *res = NULL;
845 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
847 * The sb could have been allocated with the default capacity and be empty.
848 * we need to alloc a buffer of the default capacity in this case.
850 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
851 sb->cached_str = NULL;
854 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
856 g_error_free (error);
857 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
859 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
860 memcpy (res, tmp, sb->length + 1);
868 * mono_string_builder_to_utf16:
869 * @sb: the string builder
871 * Converts to utf16 the contents of the MonoStringBuilder.
873 * Returns: a utf16 string with the contents of the StringBuilder.
875 * The return value must not be freed.
878 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
886 * The stringbuilder might not have ownership of this string. If this is
887 * the case, we must duplicate the string, so that we don't munge immutable
890 if (sb->str == sb->cached_str) {
892 * The sb could have been allocated with the default capacity and be empty.
893 * we need to alloc a buffer of the default capacity in this case.
895 if (sb->str->length == 0)
896 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
898 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
899 sb->cached_str = NULL;
903 *(mono_string_chars (sb->str)) = '\0';
905 return mono_string_chars (sb->str);
909 mono_string_to_lpstr (MonoString *s)
914 GError *error = NULL;
920 as = CoTaskMemAlloc (1);
925 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
927 MonoException *exc = mono_get_exception_argument ("string", error->message);
928 g_error_free (error);
929 mono_raise_exception(exc);
932 as = CoTaskMemAlloc (len + 1);
933 memcpy (as, tmp, len + 1);
938 return mono_string_to_utf8 (s);
943 mono_string_to_ansibstr (MonoString *string_obj)
945 g_error ("UnmanagedMarshal.BStr is not implemented.");
950 * mono_string_to_byvalstr:
951 * @dst: Where to store the null-terminated utf8 decoded string.
952 * @src: the MonoString to copy.
953 * @size: the maximum number of bytes to copy.
955 * Copies the MonoString pointed to by @src as a utf8 string
956 * into @dst, it copies at most @size bytes into the destination.
959 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
964 g_assert (dst != NULL);
967 memset (dst, 0, size);
971 s = mono_string_to_utf8 (src);
972 len = MIN (size, strlen (s));
975 memcpy (dst, s, len);
980 * mono_string_to_byvalwstr:
981 * @dst: Where to store the null-terminated utf16 decoded string.
982 * @src: the MonoString to copy.
983 * @size: the maximum number of bytes to copy.
985 * Copies the MonoString pointed to by @src as a utf16 string into
986 * @dst, it copies at most @size bytes into the destination (including
987 * a terminating 16-bit zero terminator).
990 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
994 g_assert (dst != NULL);
998 memset (dst, 0, size * 2);
1002 len = MIN (size, (mono_string_length (src)));
1003 memcpy (dst, mono_string_chars (src), size * 2);
1004 if (size <= mono_string_length (src))
1006 *((gunichar2 *) dst + len) = 0;
1010 mono_string_new_len_wrapper (const char *text, guint length)
1012 return mono_string_new_len (mono_domain_get (), text, length);
1018 * mono_mb_emit_exception_marshal_directive:
1020 * This function assumes ownership of MSG, which should be malloc-ed.
1023 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1028 s = mono_image_strdup (mb->method->klass->image, msg);
1033 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1036 #endif /* !DISABLE_JIT */
1039 mono_type_to_ldind (MonoType *type)
1045 switch (type->type) {
1047 return CEE_LDIND_I1;
1049 case MONO_TYPE_BOOLEAN:
1050 return CEE_LDIND_U1;
1052 return CEE_LDIND_I2;
1054 case MONO_TYPE_CHAR:
1055 return CEE_LDIND_U2;
1057 return CEE_LDIND_I4;
1059 return CEE_LDIND_U4;
1063 case MONO_TYPE_FNPTR:
1065 case MONO_TYPE_CLASS:
1066 case MONO_TYPE_STRING:
1067 case MONO_TYPE_OBJECT:
1068 case MONO_TYPE_SZARRAY:
1069 case MONO_TYPE_ARRAY:
1070 return CEE_LDIND_REF;
1073 return CEE_LDIND_I8;
1075 return CEE_LDIND_R4;
1077 return CEE_LDIND_R8;
1078 case MONO_TYPE_VALUETYPE:
1079 if (type->data.klass->enumtype) {
1080 type = mono_class_enum_basetype (type->data.klass);
1084 case MONO_TYPE_TYPEDBYREF:
1086 case MONO_TYPE_GENERICINST:
1087 type = &type->data.generic_class->container_class->byval_arg;
1090 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1096 mono_type_to_stind (MonoType *type)
1102 switch (type->type) {
1105 case MONO_TYPE_BOOLEAN:
1106 return CEE_STIND_I1;
1109 case MONO_TYPE_CHAR:
1110 return CEE_STIND_I2;
1113 return CEE_STIND_I4;
1117 case MONO_TYPE_FNPTR:
1119 case MONO_TYPE_CLASS:
1120 case MONO_TYPE_STRING:
1121 case MONO_TYPE_OBJECT:
1122 case MONO_TYPE_SZARRAY:
1123 case MONO_TYPE_ARRAY:
1124 return CEE_STIND_REF;
1127 return CEE_STIND_I8;
1129 return CEE_STIND_R4;
1131 return CEE_STIND_R8;
1132 case MONO_TYPE_VALUETYPE:
1133 if (type->data.klass->enumtype) {
1134 type = mono_class_enum_basetype (type->data.klass);
1138 case MONO_TYPE_TYPEDBYREF:
1140 case MONO_TYPE_GENERICINST:
1141 type = &type->data.generic_class->container_class->byval_arg;
1144 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1152 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1155 case MONO_MARSHAL_CONV_BOOL_I4:
1156 mono_mb_emit_ldloc (mb, 1);
1157 mono_mb_emit_ldloc (mb, 0);
1158 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1159 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1160 mono_mb_emit_byte (mb, 3);
1161 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1162 mono_mb_emit_byte (mb, CEE_BR_S);
1163 mono_mb_emit_byte (mb, 1);
1164 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1165 mono_mb_emit_byte (mb, CEE_STIND_I1);
1167 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1168 mono_mb_emit_ldloc (mb, 1);
1169 mono_mb_emit_ldloc (mb, 0);
1170 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1171 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1172 mono_mb_emit_byte (mb, 3);
1173 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1174 mono_mb_emit_byte (mb, CEE_BR_S);
1175 mono_mb_emit_byte (mb, 1);
1176 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1177 mono_mb_emit_byte (mb, CEE_STIND_I1);
1179 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1180 MonoClass *eklass = NULL;
1183 if (type->type == MONO_TYPE_SZARRAY) {
1184 eklass = type->data.klass;
1186 g_assert_not_reached ();
1189 esize = mono_class_native_size (eklass, NULL);
1191 /* create a new array */
1192 mono_mb_emit_ldloc (mb, 1);
1193 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1194 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1195 mono_mb_emit_byte (mb, CEE_STIND_I);
1197 if (eklass->blittable) {
1198 /* copy the elements */
1199 mono_mb_emit_ldloc (mb, 1);
1200 mono_mb_emit_byte (mb, CEE_LDIND_I);
1201 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1202 mono_mb_emit_byte (mb, CEE_ADD);
1203 mono_mb_emit_ldloc (mb, 0);
1204 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1205 mono_mb_emit_byte (mb, CEE_PREFIX1);
1206 mono_mb_emit_byte (mb, CEE_CPBLK);
1209 int array_var, src_var, dst_var, index_var;
1210 guint32 label2, label3;
1212 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1213 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1214 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1217 mono_mb_emit_ldloc (mb, 1);
1218 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1219 mono_mb_emit_stloc (mb, array_var);
1221 /* save the old src pointer */
1222 mono_mb_emit_ldloc (mb, 0);
1223 mono_mb_emit_stloc (mb, src_var);
1224 /* save the old dst pointer */
1225 mono_mb_emit_ldloc (mb, 1);
1226 mono_mb_emit_stloc (mb, dst_var);
1228 /* Emit marshalling loop */
1229 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1230 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1231 mono_mb_emit_stloc (mb, index_var);
1234 label2 = mono_mb_get_label (mb);
1235 mono_mb_emit_ldloc (mb, index_var);
1236 mono_mb_emit_ldloc (mb, array_var);
1237 mono_mb_emit_byte (mb, CEE_LDLEN);
1238 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1240 /* src is already set */
1243 mono_mb_emit_ldloc (mb, array_var);
1244 mono_mb_emit_ldloc (mb, index_var);
1245 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1246 mono_mb_emit_stloc (mb, 1);
1248 /* Do the conversion */
1249 emit_struct_conv (mb, eklass, TRUE);
1252 mono_mb_emit_add_to_local (mb, index_var, 1);
1254 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1256 mono_mb_patch_branch (mb, label3);
1258 /* restore the old src pointer */
1259 mono_mb_emit_ldloc (mb, src_var);
1260 mono_mb_emit_stloc (mb, 0);
1261 /* restore the old dst pointer */
1262 mono_mb_emit_ldloc (mb, dst_var);
1263 mono_mb_emit_stloc (mb, 1);
1267 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1268 MonoClass *eclass = mono_defaults.char_class;
1270 /* create a new array */
1271 mono_mb_emit_ldloc (mb, 1);
1272 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1273 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1274 mono_mb_emit_byte (mb, CEE_STIND_REF);
1276 mono_mb_emit_ldloc (mb, 1);
1277 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1278 mono_mb_emit_ldloc (mb, 0);
1279 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1280 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1283 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1284 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1285 mono_mb_emit_ldloc (mb, 1);
1286 mono_mb_emit_ldloc (mb, 0);
1287 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1288 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_ldloc (mb, 0);
1292 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1294 mono_mb_emit_byte (mb, CEE_STIND_REF);
1296 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1297 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1298 mono_mb_emit_ldloc (mb, 1);
1299 mono_mb_emit_ldloc (mb, 0);
1300 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1301 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1303 mono_mb_emit_ldloc (mb, 1);
1304 mono_mb_emit_ldloc (mb, 0);
1305 mono_mb_emit_icall (mb, mono_string_from_utf16);
1307 mono_mb_emit_byte (mb, CEE_STIND_REF);
1309 case MONO_MARSHAL_CONV_STR_LPTSTR:
1310 mono_mb_emit_ldloc (mb, 1);
1311 mono_mb_emit_ldloc (mb, 0);
1312 mono_mb_emit_byte (mb, CEE_LDIND_I);
1314 mono_mb_emit_icall (mb, mono_string_from_utf16);
1316 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1318 mono_mb_emit_byte (mb, CEE_STIND_REF);
1320 case MONO_MARSHAL_CONV_STR_LPSTR:
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I);
1324 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1325 mono_mb_emit_byte (mb, CEE_STIND_REF);
1327 case MONO_MARSHAL_CONV_STR_LPWSTR:
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_ldloc (mb, 0);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I);
1331 mono_mb_emit_icall (mb, mono_string_from_utf16);
1332 mono_mb_emit_byte (mb, CEE_STIND_REF);
1334 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1335 MonoClass *klass = mono_class_from_mono_type (type);
1336 int src_var, dst_var;
1338 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1339 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1341 /* *dst = new object */
1342 mono_mb_emit_ldloc (mb, 1);
1343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1344 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1345 mono_mb_emit_byte (mb, CEE_STIND_REF);
1347 /* save the old src pointer */
1348 mono_mb_emit_ldloc (mb, 0);
1349 mono_mb_emit_stloc (mb, src_var);
1350 /* save the old dst pointer */
1351 mono_mb_emit_ldloc (mb, 1);
1352 mono_mb_emit_stloc (mb, dst_var);
1354 /* dst = pointer to newly created object data */
1355 mono_mb_emit_ldloc (mb, 1);
1356 mono_mb_emit_byte (mb, CEE_LDIND_I);
1357 mono_mb_emit_icon (mb, sizeof (MonoObject));
1358 mono_mb_emit_byte (mb, CEE_ADD);
1359 mono_mb_emit_stloc (mb, 1);
1361 emit_struct_conv (mb, klass, TRUE);
1363 /* restore the old src pointer */
1364 mono_mb_emit_ldloc (mb, src_var);
1365 mono_mb_emit_stloc (mb, 0);
1366 /* restore the old dst pointer */
1367 mono_mb_emit_ldloc (mb, dst_var);
1368 mono_mb_emit_stloc (mb, 1);
1371 case MONO_MARSHAL_CONV_DEL_FTN: {
1372 MonoClass *klass = mono_class_from_mono_type (type);
1374 mono_mb_emit_ldloc (mb, 1);
1375 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1376 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_byte (mb, CEE_LDIND_I);
1379 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1380 mono_mb_emit_byte (mb, CEE_STIND_REF);
1383 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1384 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1388 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1389 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1390 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1391 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1393 #endif /* DISABLE_COM */
1395 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1397 * Passing SafeHandles as ref does not allow the unmanaged code
1398 * to change the SafeHandle value. If the value is changed,
1399 * we should issue a diagnostic exception (NotSupportedException)
1400 * that informs the user that changes to handles in unmanaged code
1403 * Since we currently have no access to the original
1404 * SafeHandle that was used during the marshalling,
1405 * for now we just ignore this, and ignore/discard any
1406 * changes that might have happened to the handle.
1411 case MONO_MARSHAL_CONV_HANDLEREF: {
1413 * Passing HandleRefs in a struct that is ref()ed does not
1414 * copy the values back to the HandleRef
1419 case MONO_MARSHAL_CONV_STR_BSTR:
1420 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1421 case MONO_MARSHAL_CONV_STR_TBSTR:
1422 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1424 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1426 mono_mb_emit_exception_marshal_directive (mb, msg);
1433 conv_to_icall (MonoMarshalConv conv)
1436 case MONO_MARSHAL_CONV_STR_LPWSTR:
1437 return mono_marshal_string_to_utf16;
1438 case MONO_MARSHAL_CONV_LPWSTR_STR:
1439 return mono_string_from_utf16;
1440 case MONO_MARSHAL_CONV_LPTSTR_STR:
1441 return mono_string_new_wrapper;
1442 case MONO_MARSHAL_CONV_LPSTR_STR:
1443 return mono_string_new_wrapper;
1444 case MONO_MARSHAL_CONV_STR_LPTSTR:
1446 return mono_marshal_string_to_utf16;
1448 return mono_string_to_lpstr;
1450 case MONO_MARSHAL_CONV_STR_LPSTR:
1451 return mono_string_to_lpstr;
1452 case MONO_MARSHAL_CONV_STR_BSTR:
1453 return mono_string_to_bstr;
1454 case MONO_MARSHAL_CONV_BSTR_STR:
1455 return mono_string_from_bstr;
1456 case MONO_MARSHAL_CONV_STR_TBSTR:
1457 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1458 return mono_string_to_ansibstr;
1459 case MONO_MARSHAL_CONV_SB_LPSTR:
1460 return mono_string_builder_to_utf8;
1461 case MONO_MARSHAL_CONV_SB_LPTSTR:
1463 return mono_string_builder_to_utf16;
1465 return mono_string_builder_to_utf8;
1467 case MONO_MARSHAL_CONV_SB_LPWSTR:
1468 return mono_string_builder_to_utf16;
1469 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1470 return mono_array_to_savearray;
1471 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1472 return mono_array_to_lparray;
1473 case MONO_MARSHAL_FREE_LPARRAY:
1474 return mono_free_lparray;
1475 case MONO_MARSHAL_CONV_DEL_FTN:
1476 return mono_delegate_to_ftnptr;
1477 case MONO_MARSHAL_CONV_FTN_DEL:
1478 return mono_ftnptr_to_delegate;
1479 case MONO_MARSHAL_CONV_LPSTR_SB:
1480 return mono_string_utf8_to_builder;
1481 case MONO_MARSHAL_CONV_LPTSTR_SB:
1483 return mono_string_utf16_to_builder;
1485 return mono_string_utf8_to_builder;
1487 case MONO_MARSHAL_CONV_LPWSTR_SB:
1488 return mono_string_utf16_to_builder;
1489 case MONO_MARSHAL_FREE_ARRAY:
1490 return mono_marshal_free_array;
1491 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1492 return mono_string_to_byvalstr;
1493 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1494 return mono_string_to_byvalwstr;
1496 g_assert_not_reached ();
1503 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1508 case MONO_MARSHAL_CONV_BOOL_I4:
1509 mono_mb_emit_ldloc (mb, 1);
1510 mono_mb_emit_ldloc (mb, 0);
1511 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1512 mono_mb_emit_byte (mb, CEE_STIND_I4);
1514 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1515 mono_mb_emit_ldloc (mb, 1);
1516 mono_mb_emit_ldloc (mb, 0);
1517 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1518 mono_mb_emit_byte (mb, CEE_NEG);
1519 mono_mb_emit_byte (mb, CEE_STIND_I2);
1521 case MONO_MARSHAL_CONV_STR_LPWSTR:
1522 case MONO_MARSHAL_CONV_STR_LPSTR:
1523 case MONO_MARSHAL_CONV_STR_LPTSTR:
1524 case MONO_MARSHAL_CONV_STR_BSTR:
1525 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1526 case MONO_MARSHAL_CONV_STR_TBSTR: {
1529 /* free space if free == true */
1530 mono_mb_emit_ldloc (mb, 2);
1531 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 mono_mb_emit_icall (mb, g_free);
1535 mono_mb_patch_short_branch (mb, pos);
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_ldloc (mb, 0);
1539 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1540 mono_mb_emit_icall (mb, conv_to_icall (conv));
1541 mono_mb_emit_byte (mb, CEE_STIND_I);
1544 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1545 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1546 case MONO_MARSHAL_CONV_DEL_FTN:
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1550 mono_mb_emit_icall (mb, conv_to_icall (conv));
1551 mono_mb_emit_byte (mb, CEE_STIND_I);
1553 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1554 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1557 mono_mb_emit_ldloc (mb, 1); /* dst */
1558 mono_mb_emit_ldloc (mb, 0);
1559 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1560 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1561 mono_mb_emit_icall (mb, conv_to_icall (conv));
1564 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1565 MonoClass *eklass = NULL;
1568 if (type->type == MONO_TYPE_SZARRAY) {
1569 eklass = type->data.klass;
1571 g_assert_not_reached ();
1574 if (eklass->valuetype)
1575 esize = mono_class_native_size (eklass, NULL);
1577 esize = sizeof (gpointer);
1579 mono_mb_emit_ldloc (mb, 0);
1580 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1581 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1583 if (eklass->blittable) {
1584 mono_mb_emit_ldloc (mb, 1);
1585 mono_mb_emit_ldloc (mb, 0);
1586 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1587 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1588 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1589 mono_mb_emit_byte (mb, CEE_PREFIX1);
1590 mono_mb_emit_byte (mb, CEE_CPBLK);
1592 int array_var, src_var, dst_var, index_var;
1593 guint32 label2, label3;
1595 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1596 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1597 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1600 mono_mb_emit_ldloc (mb, 0);
1601 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1602 mono_mb_emit_stloc (mb, array_var);
1604 /* save the old src pointer */
1605 mono_mb_emit_ldloc (mb, 0);
1606 mono_mb_emit_stloc (mb, src_var);
1607 /* save the old dst pointer */
1608 mono_mb_emit_ldloc (mb, 1);
1609 mono_mb_emit_stloc (mb, dst_var);
1611 /* Emit marshalling loop */
1612 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1613 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1614 mono_mb_emit_stloc (mb, index_var);
1617 label2 = mono_mb_get_label (mb);
1618 mono_mb_emit_ldloc (mb, index_var);
1619 mono_mb_emit_ldloc (mb, array_var);
1620 mono_mb_emit_byte (mb, CEE_LDLEN);
1621 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1624 mono_mb_emit_ldloc (mb, array_var);
1625 mono_mb_emit_ldloc (mb, index_var);
1626 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1627 mono_mb_emit_stloc (mb, 0);
1629 /* dst is already set */
1631 /* Do the conversion */
1632 emit_struct_conv (mb, eklass, FALSE);
1635 mono_mb_emit_add_to_local (mb, index_var, 1);
1637 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1639 mono_mb_patch_branch (mb, label3);
1641 /* restore the old src pointer */
1642 mono_mb_emit_ldloc (mb, src_var);
1643 mono_mb_emit_stloc (mb, 0);
1644 /* restore the old dst pointer */
1645 mono_mb_emit_ldloc (mb, dst_var);
1646 mono_mb_emit_stloc (mb, 1);
1649 mono_mb_patch_branch (mb, pos);
1652 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1653 mono_mb_emit_ldloc (mb, 0);
1654 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1655 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1657 mono_mb_emit_ldloc (mb, 1);
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1660 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1661 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1662 mono_mb_patch_short_branch (mb, pos);
1665 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1666 int src_var, dst_var;
1668 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1669 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1671 mono_mb_emit_ldloc (mb, 0);
1672 mono_mb_emit_byte (mb, CEE_LDIND_I);
1673 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1675 /* save the old src pointer */
1676 mono_mb_emit_ldloc (mb, 0);
1677 mono_mb_emit_stloc (mb, src_var);
1678 /* save the old dst pointer */
1679 mono_mb_emit_ldloc (mb, 1);
1680 mono_mb_emit_stloc (mb, dst_var);
1682 /* src = pointer to object data */
1683 mono_mb_emit_ldloc (mb, 0);
1684 mono_mb_emit_byte (mb, CEE_LDIND_I);
1685 mono_mb_emit_icon (mb, sizeof (MonoObject));
1686 mono_mb_emit_byte (mb, CEE_ADD);
1687 mono_mb_emit_stloc (mb, 0);
1689 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1691 /* restore the old src pointer */
1692 mono_mb_emit_ldloc (mb, src_var);
1693 mono_mb_emit_stloc (mb, 0);
1694 /* restore the old dst pointer */
1695 mono_mb_emit_ldloc (mb, dst_var);
1696 mono_mb_emit_stloc (mb, 1);
1698 mono_mb_patch_branch (mb, pos);
1703 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1704 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1705 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1706 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1708 #endif /* DISABLE_COM */
1710 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1711 int dar_release_slot, pos;
1713 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1716 * The following is ifdefed-out, because I have no way of doing the
1717 * DangerousRelease when destroying the structure
1720 /* set release = false */
1721 mono_mb_emit_icon (mb, 0);
1722 mono_mb_emit_stloc (mb, dar_release_slot);
1723 if (!sh_dangerous_add_ref)
1724 init_safe_handle ();
1726 /* safehandle.DangerousAddRef (ref release) */
1727 mono_mb_emit_ldloc (mb, 0); /* the source */
1728 mono_mb_emit_byte (mb, CEE_LDIND_I);
1729 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1730 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_I);
1734 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1735 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1736 mono_mb_patch_branch (mb, pos);
1738 /* Pull the handle field from SafeHandle */
1739 mono_mb_emit_ldloc (mb, 1);
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_byte (mb, CEE_LDIND_I);
1742 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1743 mono_mb_emit_byte (mb, CEE_LDIND_I);
1744 mono_mb_emit_byte (mb, CEE_STIND_I);
1748 case MONO_MARSHAL_CONV_HANDLEREF: {
1749 mono_mb_emit_ldloc (mb, 1);
1750 mono_mb_emit_ldloc (mb, 0);
1751 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1752 mono_mb_emit_byte (mb, CEE_ADD);
1753 mono_mb_emit_byte (mb, CEE_LDIND_I);
1754 mono_mb_emit_byte (mb, CEE_STIND_I);
1759 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1760 MonoException *exc = mono_get_exception_not_implemented (msg);
1761 g_warning ("%s", msg);
1763 mono_raise_exception (exc);
1769 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1770 MonoMarshalNative string_encoding)
1772 MonoMarshalType *info;
1776 emit_struct_conv(mb, klass->parent, to_object);
1778 info = mono_marshal_load_type_info (klass);
1780 if (info->native_size == 0)
1783 if (klass->blittable) {
1784 int msize = mono_class_value_size (klass, NULL);
1785 g_assert (msize == info->native_size);
1786 mono_mb_emit_ldloc (mb, 1);
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_icon (mb, msize);
1789 mono_mb_emit_byte (mb, CEE_PREFIX1);
1790 mono_mb_emit_byte (mb, CEE_CPBLK);
1792 mono_mb_emit_add_to_local (mb, 0, msize);
1793 mono_mb_emit_add_to_local (mb, 1, msize);
1797 if (klass != mono_defaults.safehandle_class) {
1798 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1799 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1800 mono_type_full_name (&klass->byval_arg));
1801 mono_mb_emit_exception_marshal_directive (mb, msg);
1806 for (i = 0; i < info->num_fields; i++) {
1807 MonoMarshalNative ntype;
1808 MonoMarshalConv conv;
1809 MonoType *ftype = info->fields [i].field->type;
1812 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1814 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1817 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1820 msize = klass->instance_size - info->fields [i].field->offset;
1821 usize = info->native_size - info->fields [i].offset;
1823 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1824 usize = info->fields [i + 1].offset - info->fields [i].offset;
1827 if (klass != mono_defaults.safehandle_class){
1829 * FIXME: Should really check for usize==0 and msize>0, but we apply
1830 * the layout to the managed structure as well.
1833 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1834 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1835 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1836 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1837 "reference field at the same offset as another field.",
1838 mono_type_full_name (&klass->byval_arg));
1843 case MONO_MARSHAL_CONV_NONE: {
1846 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1847 ftype->type == MONO_TYPE_U) {
1848 mono_mb_emit_ldloc (mb, 1);
1849 mono_mb_emit_ldloc (mb, 0);
1850 mono_mb_emit_byte (mb, CEE_LDIND_I);
1851 mono_mb_emit_byte (mb, CEE_STIND_I);
1862 case MONO_TYPE_BOOLEAN:
1865 case MONO_TYPE_CHAR:
1871 mono_mb_emit_ldloc (mb, 1);
1872 mono_mb_emit_ldloc (mb, 0);
1873 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1875 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1876 mono_mb_emit_byte (mb, CEE_STIND_I2);
1878 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1879 mono_mb_emit_byte (mb, CEE_STIND_I1);
1882 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1883 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1886 case MONO_TYPE_VALUETYPE: {
1887 int src_var, dst_var;
1889 if (ftype->data.klass->enumtype) {
1890 ftype = mono_class_enum_basetype (ftype->data.klass);
1894 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1895 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1897 /* save the old src pointer */
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_stloc (mb, src_var);
1900 /* save the old dst pointer */
1901 mono_mb_emit_ldloc (mb, 1);
1902 mono_mb_emit_stloc (mb, dst_var);
1904 emit_struct_conv (mb, ftype->data.klass, to_object);
1906 /* restore the old src pointer */
1907 mono_mb_emit_ldloc (mb, src_var);
1908 mono_mb_emit_stloc (mb, 0);
1909 /* restore the old dst pointer */
1910 mono_mb_emit_ldloc (mb, dst_var);
1911 mono_mb_emit_stloc (mb, 1);
1914 case MONO_TYPE_OBJECT: {
1917 static MonoMethod *variant_clear = NULL;
1918 static MonoMethod *get_object_for_native_variant = NULL;
1921 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1922 if (!get_object_for_native_variant)
1923 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1924 mono_mb_emit_ldloc (mb, 1);
1925 mono_mb_emit_ldloc (mb, 0);
1926 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1927 mono_mb_emit_byte (mb, CEE_STIND_REF);
1929 mono_mb_emit_ldloc (mb, 0);
1930 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1933 static MonoMethod *get_native_variant_for_object = NULL;
1935 if (!get_native_variant_for_object)
1936 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1938 mono_mb_emit_ldloc (mb, 0);
1939 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1940 mono_mb_emit_ldloc (mb, 1);
1941 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1944 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1945 mono_mb_emit_exception_marshal_directive (mb, msg);
1951 g_warning ("marshaling type %02x not implemented", ftype->type);
1952 g_assert_not_reached ();
1957 int src_var, dst_var;
1959 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1960 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1962 /* save the old src pointer */
1963 mono_mb_emit_ldloc (mb, 0);
1964 mono_mb_emit_stloc (mb, src_var);
1965 /* save the old dst pointer */
1966 mono_mb_emit_ldloc (mb, 1);
1967 mono_mb_emit_stloc (mb, dst_var);
1970 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1972 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1974 /* restore the old src pointer */
1975 mono_mb_emit_ldloc (mb, src_var);
1976 mono_mb_emit_stloc (mb, 0);
1977 /* restore the old dst pointer */
1978 mono_mb_emit_ldloc (mb, dst_var);
1979 mono_mb_emit_stloc (mb, 1);
1984 mono_mb_emit_add_to_local (mb, 0, usize);
1985 mono_mb_emit_add_to_local (mb, 1, msize);
1987 mono_mb_emit_add_to_local (mb, 0, msize);
1988 mono_mb_emit_add_to_local (mb, 1, usize);
1994 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1996 emit_struct_conv_full (mb, klass, to_object, -1);
2000 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2002 /* Call DestroyStructure */
2003 /* FIXME: Only do this if needed */
2004 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2005 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2006 mono_mb_emit_ldloc (mb, struct_var);
2007 mono_mb_emit_icall (mb, mono_struct_delete_old);
2011 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2015 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2016 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2017 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2019 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2020 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2022 mono_mb_emit_icall (mb, checkpoint_func);
2024 mono_mb_patch_branch (mb, pos_noabort);
2028 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2030 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2033 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2037 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2039 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2043 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2045 emit_thread_interrupt_checkpoint (mb);
2049 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2051 emit_thread_force_interrupt_checkpoint (mb);
2054 #endif /* DISABLE_JIT */
2056 static MonoAsyncResult *
2057 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2059 MonoMethodMessage *msg;
2060 MonoDelegate *async_callback;
2061 MonoMulticastDelegate *mcast_delegate;
2065 MonoMethod *method = NULL, *method2 = NULL;
2067 g_assert (delegate);
2068 mcast_delegate = (MonoMulticastDelegate *) delegate;
2069 if (mcast_delegate->prev != NULL)
2070 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2072 #ifndef DISABLE_REMOTING
2073 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2075 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2076 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2078 /* If the target is a proxy, make a direct call. Is proxy's work
2079 // to make the call asynchronous.
2081 MonoAsyncResult *ares;
2083 MonoArray *out_args;
2084 method = delegate->method;
2086 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2087 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2088 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2089 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2090 MONO_OBJECT_SETREF (msg, async_result, ares);
2091 msg->call_type = CallType_BeginInvoke;
2094 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2096 mono_raise_exception ((MonoException *) exc);
2102 klass = delegate->object.vtable->klass;
2104 method = mono_get_delegate_invoke (klass);
2105 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2108 g_assert (method != NULL);
2110 im = mono_get_delegate_invoke (method->klass);
2111 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2113 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2119 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2121 int i, params_var, tmp_var;
2123 /* allocate local (pointer) *params[] */
2124 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2125 /* allocate local (pointer) tmp */
2126 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2128 /* alloate space on stack to store an array of pointers to the arguments */
2129 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2130 mono_mb_emit_byte (mb, CEE_PREFIX1);
2131 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2132 mono_mb_emit_stloc (mb, params_var);
2135 mono_mb_emit_ldloc (mb, params_var);
2136 mono_mb_emit_stloc (mb, tmp_var);
2138 if (save_this && sig->hasthis) {
2139 mono_mb_emit_ldloc (mb, tmp_var);
2140 mono_mb_emit_ldarg_addr (mb, 0);
2141 mono_mb_emit_byte (mb, CEE_STIND_I);
2142 /* tmp = tmp + sizeof (gpointer) */
2143 if (sig->param_count)
2144 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2148 for (i = 0; i < sig->param_count; i++) {
2149 mono_mb_emit_ldloc (mb, tmp_var);
2150 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2151 mono_mb_emit_byte (mb, CEE_STIND_I);
2152 /* tmp = tmp + sizeof (gpointer) */
2153 if (i < (sig->param_count - 1))
2154 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2160 #endif /* DISABLE_JIT */
2163 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2167 GString *res = g_string_new ("");
2170 g_string_append (res, prefix);
2171 g_string_append_c (res, '_');
2174 mono_type_get_desc (res, sig->ret, FALSE);
2177 g_string_append (res, "__this__");
2179 for (i = 0; i < sig->param_count; ++i) {
2180 g_string_append_c (res, '_');
2181 mono_type_get_desc (res, sig->params [i], FALSE);
2184 g_string_free (res, FALSE);
2189 * mono_marshal_get_string_encoding:
2191 * Return the string encoding which should be used for a given parameter.
2193 static MonoMarshalNative
2194 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2196 /* First try the parameter marshal info */
2198 if (spec->native == MONO_NATIVE_LPARRAY) {
2199 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2200 return spec->data.array_data.elem_type;
2203 return spec->native;
2207 return MONO_NATIVE_LPSTR;
2209 /* Then try the method level marshal info */
2210 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2211 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2212 return MONO_NATIVE_LPSTR;
2213 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2214 return MONO_NATIVE_LPWSTR;
2215 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2217 return MONO_NATIVE_LPWSTR;
2219 return MONO_NATIVE_LPSTR;
2222 return MONO_NATIVE_LPSTR;
2226 static MonoMarshalConv
2227 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2229 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2232 case MONO_NATIVE_LPWSTR:
2233 return MONO_MARSHAL_CONV_STR_LPWSTR;
2234 case MONO_NATIVE_LPSTR:
2235 case MONO_NATIVE_VBBYREFSTR:
2236 return MONO_MARSHAL_CONV_STR_LPSTR;
2237 case MONO_NATIVE_LPTSTR:
2238 return MONO_MARSHAL_CONV_STR_LPTSTR;
2239 case MONO_NATIVE_BSTR:
2240 return MONO_MARSHAL_CONV_STR_BSTR;
2246 static MonoMarshalConv
2247 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2249 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2252 case MONO_NATIVE_LPWSTR:
2253 return MONO_MARSHAL_CONV_SB_LPWSTR;
2255 case MONO_NATIVE_LPSTR:
2256 return MONO_MARSHAL_CONV_SB_LPSTR;
2258 case MONO_NATIVE_LPTSTR:
2259 return MONO_MARSHAL_CONV_SB_LPTSTR;
2266 static MonoMarshalConv
2267 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2269 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2274 case MONO_NATIVE_LPWSTR:
2276 return MONO_MARSHAL_CONV_LPWSTR_STR;
2277 case MONO_NATIVE_LPSTR:
2278 case MONO_NATIVE_VBBYREFSTR:
2279 return MONO_MARSHAL_CONV_LPSTR_STR;
2280 case MONO_NATIVE_LPTSTR:
2281 return MONO_MARSHAL_CONV_LPTSTR_STR;
2282 case MONO_NATIVE_BSTR:
2283 return MONO_MARSHAL_CONV_BSTR_STR;
2289 static MonoMarshalConv
2290 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2292 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2297 case MONO_NATIVE_LPWSTR:
2299 * mono_string_builder_to_utf16 does not allocate a
2300 * new buffer, so no need to free it.
2303 return MONO_MARSHAL_CONV_LPWSTR_SB;
2304 case MONO_NATIVE_LPSTR:
2305 return MONO_MARSHAL_CONV_LPSTR_SB;
2307 case MONO_NATIVE_LPTSTR:
2308 return MONO_MARSHAL_CONV_LPTSTR_SB;
2316 * Return whenever a field of a native structure or an array member needs to
2320 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2322 MonoMarshalNative encoding;
2323 MonoMarshalConv conv;
2326 case MONO_TYPE_VALUETYPE:
2327 /* FIXME: Optimize this */
2329 case MONO_TYPE_OBJECT:
2330 case MONO_TYPE_CLASS:
2331 if (t->data.klass == mono_defaults.stringbuilder_class) {
2333 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2337 case MONO_TYPE_STRING:
2338 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2339 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2346 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2349 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2352 mono_marshal_lock ();
2355 g_hash_table_new (hash_func, equal_func);
2356 mono_memory_barrier ();
2359 mono_marshal_unlock ();
2365 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2367 return get_cache (var, hash_func, equal_func);
2371 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2375 mono_marshal_lock ();
2376 res = g_hash_table_lookup (cache, key);
2377 mono_marshal_unlock ();
2384 * Create a MonoMethod from MB, set INFO as wrapper info.
2387 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2388 int max_stack, WrapperInfo *info)
2392 res = mono_mb_create_method (mb, sig, max_stack);
2394 mono_marshal_set_wrapper_info (res, info);
2398 /* Create the method from the builder and place it in the cache */
2400 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2401 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2402 int max_stack, WrapperInfo *info, gboolean *out_found)
2409 mono_marshal_lock ();
2410 res = g_hash_table_lookup (cache, key);
2411 mono_marshal_unlock ();
2414 newm = mono_mb_create_method (mb, sig, max_stack);
2415 mono_marshal_lock ();
2416 res = g_hash_table_lookup (cache, key);
2419 g_hash_table_insert (cache, key, res);
2421 mono_marshal_set_wrapper_info (res, info);
2423 mono_marshal_set_wrapper_info (res, key);
2424 mono_marshal_unlock ();
2428 mono_marshal_unlock ();
2429 mono_free_method (newm);
2437 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2438 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2441 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2445 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2448 int wrapper_type = wrapper->wrapper_type;
2451 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2454 switch (wrapper_type) {
2455 case MONO_WRAPPER_REMOTING_INVOKE:
2456 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2457 case MONO_WRAPPER_XDOMAIN_INVOKE:
2458 case MONO_WRAPPER_SYNCHRONIZED:
2459 case MONO_WRAPPER_UNBOX:
2460 res = mono_marshal_get_wrapper_info (wrapper);
2463 if (wrapper->is_inflated) {
2467 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2468 * contains an uninflated method.
2470 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2471 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2475 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2476 info = mono_marshal_get_wrapper_info (wrapper);
2477 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2478 return info->d.managed_to_native.method;
2481 case MONO_WRAPPER_RUNTIME_INVOKE:
2482 info = mono_marshal_get_wrapper_info (wrapper);
2483 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2484 return info->d.runtime_invoke.method;
2493 * mono_marshal_get_wrapper_info:
2495 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2496 * returned depends on the wrapper type. It is usually a method, a class, or a
2497 * WrapperInfo structure.
2500 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2502 g_assert (wrapper->wrapper_type);
2504 return mono_method_get_wrapper_data (wrapper, 1);
2508 * mono_marshal_set_wrapper_info:
2510 * Store an arbitrary pointer inside the wrapper which is retrievable by
2511 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2512 * wrapper (method->wrapper_type).
2515 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2519 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2522 datav = ((MonoMethodWrapper *)method)->method_data;
2527 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2531 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2532 info->subtype = subtype;
2537 * get_wrapper_target_class:
2539 * Return the class where a wrapper method should be placed.
2542 get_wrapper_target_class (MonoImage *image)
2549 * - can't put all wrappers into an mscorlib class, because they reference
2550 * metadata (signature) so they should be put into the same image as the
2551 * method they wrap, so they are unloaded together.
2552 * - putting them into a class with a type initalizer could cause the
2553 * initializer to be executed which can be a problem if the wrappers are
2555 * - putting them into an inflated class can cause problems if the the
2556 * class is deleted because it references an image which is unloaded.
2557 * To avoid these problems, we put the wrappers into the <Module> class of
2560 if (image_is_dynamic (image)) {
2561 klass = ((MonoDynamicImage*)image)->wrappers_type;
2563 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2564 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2572 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2573 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2577 * check_generic_wrapper_cache:
2579 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2580 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2581 * generic method definition.
2584 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2587 MonoMethod *inst, *def;
2588 MonoGenericContext *ctx;
2589 MonoMethod *def_method;
2591 g_assert (orig_method->is_inflated);
2592 def_method = ((MonoMethodInflated*)orig_method)->declaring;
2593 ctx = mono_method_get_context (orig_method);
2596 * Look for the instance
2598 res = mono_marshal_find_in_cache (cache, key);
2603 * Look for the definition
2605 def = mono_marshal_find_in_cache (cache, def_key);
2608 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2609 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2611 mono_memory_barrier ();
2612 mono_marshal_lock ();
2613 res = g_hash_table_lookup (cache, key);
2615 g_hash_table_insert (cache, key, inst);
2618 mono_marshal_unlock ();
2625 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2628 MonoMethod *inst, *res;
2631 * We use the same cache for the generic definition and the instances.
2633 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2634 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2635 mono_memory_barrier ();
2636 mono_marshal_lock ();
2637 res = g_hash_table_lookup (cache, key);
2639 g_hash_table_insert (cache, key, inst);
2642 mono_marshal_unlock ();
2647 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2651 MonoMethod *inst, *def;
2654 * Look for the instance
2656 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2661 * Look for the definition
2663 def = mono_marshal_find_in_cache (cache, def_method->klass);
2665 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2666 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2669 mono_memory_barrier ();
2670 mono_marshal_lock ();
2671 res = g_hash_table_lookup (cache, orig_method->klass);
2673 g_hash_table_insert (cache, orig_method->klass, inst);
2676 mono_marshal_unlock ();
2683 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2686 MonoMethod *inst, *res;
2689 * We use the same cache for the generic definition and the instances.
2691 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2692 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2694 mono_memory_barrier ();
2695 mono_marshal_lock ();
2696 res = g_hash_table_lookup (cache, orig_method->klass);
2698 g_hash_table_insert (cache, orig_method->klass, inst);
2701 mono_marshal_unlock ();
2706 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2708 MonoMethodSignature *sig;
2709 MonoMethodBuilder *mb;
2714 MonoGenericContext *ctx = NULL;
2715 MonoMethod *orig_method = NULL;
2717 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2718 !strcmp (method->name, "BeginInvoke"));
2721 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2723 if (method->is_inflated) {
2724 orig_method = method;
2725 ctx = &((MonoMethodInflated*)method)->context;
2726 method = ((MonoMethodInflated*)method)->declaring;
2729 sig = mono_signature_no_pinvoke (method);
2735 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2736 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2740 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2741 (GHashFunc)mono_signature_hash,
2742 (GCompareFunc)mono_metadata_signature_equal);
2743 if ((res = mono_marshal_find_in_cache (cache, sig)))
2747 g_assert (sig->hasthis);
2749 name = mono_signature_to_name (sig, "begin_invoke");
2751 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2753 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2757 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2759 mono_mb_emit_ldarg (mb, 0);
2760 mono_mb_emit_ldloc (mb, params_var);
2761 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2762 mono_mb_emit_byte (mb, CEE_RET);
2767 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2768 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2770 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2778 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2780 MonoDomain *domain = mono_domain_get ();
2781 MonoAsyncResult *ares;
2782 MonoMethod *method = NULL;
2783 MonoMethodSignature *sig;
2784 MonoMethodMessage *msg;
2785 MonoObject *res, *exc;
2786 MonoArray *out_args;
2789 g_assert (delegate);
2791 if (!delegate->method_info) {
2792 g_assert (delegate->method);
2793 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2796 if (!delegate->method_info || !delegate->method_info->method)
2797 g_assert_not_reached ();
2799 klass = delegate->object.vtable->klass;
2801 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2802 g_assert (method != NULL);
2804 sig = mono_signature_no_pinvoke (method);
2806 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2808 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2810 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2814 if (ares->async_delegate != (MonoObject*)delegate) {
2815 mono_raise_exception (mono_get_exception_invalid_operation (
2816 "The IAsyncResult object provided does not match this delegate."));
2820 #ifndef DISABLE_REMOTING
2821 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2822 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2823 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2824 mono_message_init (domain, msg, delegate->method_info, NULL);
2825 msg->call_type = CallType_EndInvoke;
2826 MONO_OBJECT_SETREF (msg, async_result, ares);
2827 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2831 res = mono_thread_pool_finish (ares, &out_args, &exc);
2835 if (((MonoException*)exc)->stack_trace) {
2836 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2838 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2840 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2843 mono_raise_exception ((MonoException*)exc);
2846 mono_method_return_message_restore (method, params, out_args);
2853 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2855 MonoType *t = mono_type_get_underlying_type (return_type);
2857 if (return_type->byref)
2858 return_type = &mono_defaults.int_class->byval_arg;
2861 case MONO_TYPE_VOID:
2862 g_assert_not_reached ();
2865 case MONO_TYPE_STRING:
2866 case MONO_TYPE_CLASS:
2867 case MONO_TYPE_OBJECT:
2868 case MONO_TYPE_ARRAY:
2869 case MONO_TYPE_SZARRAY:
2873 case MONO_TYPE_BOOLEAN:
2876 case MONO_TYPE_CHAR:
2886 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2887 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2889 case MONO_TYPE_GENERICINST:
2890 if (!mono_type_generic_inst_is_valuetype (t))
2893 case MONO_TYPE_VALUETYPE: {
2894 MonoClass *klass = mono_class_from_mono_type (return_type);
2895 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2896 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2900 case MONO_TYPE_MVAR: {
2901 MonoClass *klass = mono_class_from_mono_type (return_type);
2902 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2906 g_warning ("type 0x%x not handled", return_type->type);
2907 g_assert_not_reached ();
2910 mono_mb_emit_byte (mb, CEE_RET);
2913 #endif /* DISABLE_JIT */
2916 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2918 MonoMethodSignature *sig;
2919 MonoMethodBuilder *mb;
2924 MonoGenericContext *ctx = NULL;
2925 MonoMethod *orig_method = NULL;
2927 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2928 !strcmp (method->name, "EndInvoke"));
2931 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2933 if (method->is_inflated) {
2934 orig_method = method;
2935 ctx = &((MonoMethodInflated*)method)->context;
2936 method = ((MonoMethodInflated*)method)->declaring;
2939 sig = mono_signature_no_pinvoke (method);
2945 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2946 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2950 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2951 (GHashFunc)mono_signature_hash,
2952 (GCompareFunc)mono_metadata_signature_equal);
2953 if ((res = mono_marshal_find_in_cache (cache, sig)))
2957 g_assert (sig->hasthis);
2959 name = mono_signature_to_name (sig, "end_invoke");
2961 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2963 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2967 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2969 mono_mb_emit_ldarg (mb, 0);
2970 mono_mb_emit_ldloc (mb, params_var);
2971 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2973 if (sig->ret->type == MONO_TYPE_VOID) {
2974 mono_mb_emit_byte (mb, CEE_POP);
2975 mono_mb_emit_byte (mb, CEE_RET);
2977 mono_mb_emit_restore_result (mb, sig->ret);
2982 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2983 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2985 res = mono_mb_create_and_cache (cache, sig,
2986 mb, sig, sig->param_count + 16);
2995 MonoMethodSignature *sig;
2997 } SignaturePointerPair;
3000 signature_pointer_pair_hash (gconstpointer data)
3002 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3004 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3008 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3010 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3011 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3015 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3017 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3019 return pair->pointer == user_data;
3023 free_signature_pointer_pair (SignaturePointerPair *pair)
3029 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3031 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3033 MonoMethodBuilder *mb;
3036 gpointer cache_key = NULL;
3037 SignaturePointerPair key;
3038 SignaturePointerPair *new_key;
3039 int local_prev, local_target;
3042 MonoClass *target_class = NULL;
3043 gboolean closed_over_null = FALSE;
3044 MonoGenericContext *ctx = NULL;
3045 MonoGenericContainer *container = NULL;
3046 MonoMethod *orig_method = NULL;
3048 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3051 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3052 !strcmp (method->name, "Invoke"));
3054 invoke_sig = sig = mono_signature_no_pinvoke (method);
3057 * If the delegate target is null, and the target method is not static, a virtual
3058 * call is made to that method with the first delegate argument as this. This is
3059 * a non-documented .NET feature.
3062 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3063 if (target_method->is_inflated) {
3064 MonoType *target_type;
3066 g_assert (method->signature->hasthis);
3067 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3068 mono_method_get_context (method));
3069 target_class = mono_class_from_mono_type (target_type);
3071 target_class = target_method->klass;
3074 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3077 if (static_method_with_first_arg_bound) {
3078 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3079 g_assert (!callvirt);
3080 invoke_sig = mono_method_signature (target_method);
3084 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3086 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3087 orig_method = method;
3088 ctx = &((MonoMethodInflated*)method)->context;
3089 method = ((MonoMethodInflated*)method)->declaring;
3091 container = mono_method_get_generic_container (method);
3093 container = method->klass->generic_container;
3094 g_assert (container);
3096 invoke_sig = sig = mono_signature_no_pinvoke (method);
3103 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3104 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3107 cache_key = method->klass;
3108 } else if (static_method_with_first_arg_bound) {
3109 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3110 (GHashFunc)mono_signature_hash,
3111 (GCompareFunc)mono_metadata_signature_equal);
3113 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3115 res = mono_marshal_find_in_cache (cache, invoke_sig);
3118 cache_key = invoke_sig;
3119 } else if (callvirt) {
3120 GHashTable **cache_ptr;
3122 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3124 /* We need to cache the signature+method pair */
3125 mono_marshal_lock ();
3127 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3129 key.sig = invoke_sig;
3130 key.pointer = target_method;
3131 res = g_hash_table_lookup (cache, &key);
3132 mono_marshal_unlock ();
3136 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3137 (GHashFunc)mono_signature_hash,
3138 (GCompareFunc)mono_metadata_signature_equal);
3139 res = mono_marshal_find_in_cache (cache, sig);
3145 static_sig = signature_dup (method->klass->image, sig);
3146 static_sig->hasthis = 0;
3147 if (!static_method_with_first_arg_bound)
3148 invoke_sig = static_sig;
3150 if (static_method_with_first_arg_bound)
3151 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3152 else if (closed_over_null)
3153 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3155 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3157 name = mono_signature_to_name (invoke_sig, "invoke");
3159 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3161 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3165 /* allocate local 0 (object) */
3166 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3167 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3169 g_assert (sig->hasthis);
3173 * prev.Invoke( args .. );
3174 * return this.<target>( args .. );
3177 /* this wrapper can be used in unmanaged-managed transitions */
3178 emit_thread_interrupt_checkpoint (mb);
3180 /* get this->prev */
3181 mono_mb_emit_ldarg (mb, 0);
3182 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3183 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3184 mono_mb_emit_stloc (mb, local_prev);
3185 mono_mb_emit_ldloc (mb, local_prev);
3187 /* if prev != null */
3188 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3192 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3193 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3195 mono_mb_emit_ldloc (mb, local_prev);
3196 for (i = 0; i < sig->param_count; i++)
3197 mono_mb_emit_ldarg (mb, i + 1);
3200 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3201 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3203 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3205 if (sig->ret->type != MONO_TYPE_VOID)
3206 mono_mb_emit_byte (mb, CEE_POP);
3208 /* continued or prev == null */
3209 mono_mb_patch_branch (mb, pos0);
3211 /* get this->target */
3212 mono_mb_emit_ldarg (mb, 0);
3213 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3214 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3215 mono_mb_emit_stloc (mb, local_target);
3217 /*static methods with bound first arg can have null target and still be bound*/
3218 if (!static_method_with_first_arg_bound) {
3219 /* if target != null */
3220 mono_mb_emit_ldloc (mb, local_target);
3221 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3223 /* then call this->method_ptr nonstatic */
3226 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3228 mono_mb_emit_ldloc (mb, local_target);
3229 for (i = 0; i < sig->param_count; ++i)
3230 mono_mb_emit_ldarg (mb, i + 1);
3231 mono_mb_emit_ldarg (mb, 0);
3232 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3233 mono_mb_emit_byte (mb, CEE_LDIND_I );
3234 mono_mb_emit_op (mb, CEE_CALLI, sig);
3236 mono_mb_emit_byte (mb, CEE_RET);
3239 /* else [target == null] call this->method_ptr static */
3240 mono_mb_patch_branch (mb, pos0);
3244 if (!closed_over_null) {
3245 mono_mb_emit_ldarg (mb, 1);
3246 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3247 for (i = 1; i < sig->param_count; ++i)
3248 mono_mb_emit_ldarg (mb, i + 1);
3249 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3251 mono_mb_emit_byte (mb, CEE_LDNULL);
3252 for (i = 0; i < sig->param_count; ++i)
3253 mono_mb_emit_ldarg (mb, i + 1);
3254 mono_mb_emit_op (mb, CEE_CALL, target_method);
3257 if (static_method_with_first_arg_bound) {
3258 mono_mb_emit_ldloc (mb, local_target);
3259 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3260 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3262 for (i = 0; i < sig->param_count; ++i)
3263 mono_mb_emit_ldarg (mb, i + 1);
3264 mono_mb_emit_ldarg (mb, 0);
3265 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3266 mono_mb_emit_byte (mb, CEE_LDIND_I );
3267 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3270 mono_mb_emit_byte (mb, CEE_RET);
3272 mb->skip_visibility = 1;
3273 #endif /* DISABLE_JIT */
3278 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3279 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3280 } else if (callvirt) {
3281 new_key = g_new0 (SignaturePointerPair, 1);
3284 info = mono_wrapper_info_create (mb, subtype);
3286 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3290 info = mono_wrapper_info_create (mb, subtype);
3292 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3300 * the returned method invokes all methods in a multicast delegate.
3303 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3305 gboolean callvirt = FALSE;
3306 gboolean static_method_with_first_arg_bound = FALSE;
3307 MonoMethod *target_method = NULL;
3308 MonoMethodSignature *sig;
3310 sig = mono_signature_no_pinvoke (method);
3312 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3314 target_method = del->method;
3317 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3318 static_method_with_first_arg_bound = TRUE;
3319 target_method = del->method;
3322 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3326 * signature_dup_add_this:
3328 * Make a copy of @sig, adding an explicit this argument.
3330 static MonoMethodSignature*
3331 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3333 MonoMethodSignature *res;
3336 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3337 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3338 res->param_count = sig->param_count + 1;
3339 res->hasthis = FALSE;
3340 for (i = sig->param_count - 1; i >= 0; i --)
3341 res->params [i + 1] = sig->params [i];
3342 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3348 MonoMethodSignature *ctor_sig;
3349 MonoMethodSignature *sig;
3352 /* protected by the marshal lock, contains CtorSigPair pointers */
3353 static GSList *strsig_list = NULL;
3355 static MonoMethodSignature *
3356 lookup_string_ctor_signature (MonoMethodSignature *sig)
3358 MonoMethodSignature *callsig;
3362 mono_marshal_lock ();
3364 for (item = strsig_list; item; item = item->next) {
3366 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3367 * because it is lock-free.
3369 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3374 mono_marshal_unlock ();
3378 static MonoMethodSignature *
3379 add_string_ctor_signature (MonoMethod *method)
3381 MonoMethodSignature *callsig;
3384 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3385 callsig->ret = &mono_defaults.string_class->byval_arg;
3386 cs = g_new (CtorSigPair, 1);
3388 cs->ctor_sig = mono_method_signature (method);
3390 mono_marshal_lock ();
3391 strsig_list = g_slist_prepend (strsig_list, cs);
3392 mono_marshal_unlock ();
3397 * mono_marshal_get_string_ctor_signature:
3399 * Return the modified signature used by string ctors (they return the newly created
3402 MonoMethodSignature*
3403 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3405 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3407 sig = add_string_ctor_signature (method);
3413 get_runtime_invoke_type (MonoType *t, gboolean ret)
3416 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3418 /* Can't share this with 'I' as that needs another indirection */
3419 return &mono_defaults.int_class->this_arg;
3422 if (MONO_TYPE_IS_REFERENCE (t))
3423 return &mono_defaults.object_class->byval_arg;
3426 /* The result needs to be boxed */
3431 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3434 return &mono_defaults.sbyte_class->byval_arg;
3436 return &mono_defaults.int16_class->byval_arg;
3438 return &mono_defaults.int32_class->byval_arg;
3441 return &mono_defaults.int64_class->byval_arg;
3442 case MONO_TYPE_BOOLEAN:
3443 return &mono_defaults.byte_class->byval_arg;
3444 case MONO_TYPE_CHAR:
3445 return &mono_defaults.uint16_class->byval_arg;
3448 return &mono_defaults.int_class->byval_arg;
3449 case MONO_TYPE_VALUETYPE:
3450 if (t->data.klass->enumtype) {
3451 t = mono_class_enum_basetype (t->data.klass);
3461 * mono_marshal_get_runtime_invoke_sig:
3463 * Return a common signature used for sharing runtime invoke wrappers.
3465 static MonoMethodSignature*
3466 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3468 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3471 res->generic_param_count = 0;
3472 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3473 for (i = 0; i < res->param_count; ++i)
3474 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3480 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3482 /* Can't share wrappers which return a vtype since it needs to be boxed */
3483 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
3486 return mono_metadata_signature_equal (sig1, sig2);
3494 * Emit the call to the wrapper method from a runtime invoke wrapper.
3497 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3498 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3500 gboolean virtual, gboolean need_direct_wrapper)
3502 static MonoString *string_dummy = NULL;
3504 int *tmp_nullable_locals;
3505 gboolean void_ret = FALSE;
3507 /* to make it work with our special string constructors */
3508 if (!string_dummy) {
3509 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3510 string_dummy = mono_string_new_wrapper ("dummy");
3514 g_assert (sig->hasthis);
3515 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3519 if (method->string_ctor) {
3520 if (mono_gc_is_moving ()) {
3521 mono_mb_emit_ptr (mb, &string_dummy);
3522 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3524 mono_mb_emit_ptr (mb, string_dummy);
3527 mono_mb_emit_ldarg (mb, 0);
3531 tmp_nullable_locals = g_new0 (int, sig->param_count);
3533 for (i = 0; i < sig->param_count; i++) {
3534 MonoType *t = sig->params [i];
3537 mono_mb_emit_ldarg (mb, 1);
3539 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3540 mono_mb_emit_byte (mb, CEE_ADD);
3544 mono_mb_emit_byte (mb, CEE_LDIND_I);
3545 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3546 * So to make this work we unbox it to a local variablee and push a reference to that.
3548 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3549 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3551 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3552 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3553 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3558 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3559 type = sig->params [i]->type;
3563 case MONO_TYPE_BOOLEAN:
3567 case MONO_TYPE_CHAR:
3576 mono_mb_emit_byte (mb, CEE_LDIND_I);
3577 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3579 case MONO_TYPE_STRING:
3580 case MONO_TYPE_CLASS:
3581 case MONO_TYPE_ARRAY:
3583 case MONO_TYPE_SZARRAY:
3584 case MONO_TYPE_OBJECT:
3585 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3587 case MONO_TYPE_GENERICINST:
3588 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3589 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3594 case MONO_TYPE_VALUETYPE:
3595 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3596 type = mono_class_enum_basetype (t->data.klass)->type;
3599 mono_mb_emit_byte (mb, CEE_LDIND_I);
3600 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3601 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3602 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3603 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3605 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3609 g_assert_not_reached ();
3614 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3615 } else if (need_direct_wrapper) {
3616 mono_mb_emit_op (mb, CEE_CALL, method);
3618 mono_mb_emit_ldarg (mb, 3);
3619 mono_mb_emit_calli (mb, callsig);
3622 if (sig->ret->byref) {
3624 g_assert_not_reached ();
3627 switch (sig->ret->type) {
3628 case MONO_TYPE_VOID:
3629 if (!method->string_ctor)
3632 case MONO_TYPE_BOOLEAN:
3633 case MONO_TYPE_CHAR:
3646 case MONO_TYPE_VALUETYPE:
3647 case MONO_TYPE_TYPEDBYREF:
3648 case MONO_TYPE_GENERICINST:
3649 /* box value types */
3650 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3652 case MONO_TYPE_STRING:
3653 case MONO_TYPE_CLASS:
3654 case MONO_TYPE_ARRAY:
3655 case MONO_TYPE_SZARRAY:
3656 case MONO_TYPE_OBJECT:
3660 /* The result is an IntPtr */
3661 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3664 g_assert_not_reached ();
3668 mono_mb_emit_stloc (mb, loc_res);
3670 /* Convert back nullable-byref arguments */
3671 for (i = 0; i < sig->param_count; i++) {
3672 MonoType *t = sig->params [i];
3675 * Box the result and put it back into the array, the caller will have
3676 * to obtain it from there.
3678 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3679 mono_mb_emit_ldarg (mb, 1);
3680 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3681 mono_mb_emit_byte (mb, CEE_ADD);
3683 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3684 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3686 mono_mb_emit_byte (mb, CEE_STIND_REF);
3690 g_free (tmp_nullable_locals);
3694 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3695 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3696 gboolean virtual, gboolean need_direct_wrapper)
3699 MonoExceptionClause *clause;
3700 int loc_res, loc_exc;
3702 /* The wrapper looks like this:
3708 * } catch (Exception e) {
3716 /* allocate local 0 (object) tmp */
3717 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3718 /* allocate local 1 (object) exc */
3719 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3721 /* *exc is assumed to be initialized to NULL by the caller */
3723 mono_mb_emit_byte (mb, CEE_LDARG_2);
3724 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3729 labels [1] = mono_mb_get_label (mb);
3730 emit_thread_force_interrupt_checkpoint (mb);
3731 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3733 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3735 /* Add a try clause around the call */
3736 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3737 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3738 clause->data.catch_class = mono_defaults.exception_class;
3739 clause->try_offset = labels [1];
3740 clause->try_len = mono_mb_get_label (mb) - labels [1];
3742 clause->handler_offset = mono_mb_get_label (mb);
3745 mono_mb_emit_stloc (mb, loc_exc);
3746 mono_mb_emit_byte (mb, CEE_LDARG_2);
3747 mono_mb_emit_ldloc (mb, loc_exc);
3748 mono_mb_emit_byte (mb, CEE_STIND_REF);
3750 mono_mb_emit_branch (mb, CEE_LEAVE);
3752 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3754 mono_mb_set_clauses (mb, 1, clause);
3756 mono_mb_patch_branch (mb, labels [2]);
3757 mono_mb_emit_ldloc (mb, loc_res);
3758 mono_mb_emit_byte (mb, CEE_RET);
3763 mono_mb_patch_branch (mb, labels [0]);
3764 emit_thread_force_interrupt_checkpoint (mb);
3765 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3767 mono_mb_emit_ldloc (mb, 0);
3768 mono_mb_emit_byte (mb, CEE_RET);
3773 * generates IL code for the runtime invoke function
3774 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3776 * we also catch exceptions if exc != null
3777 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3778 * it means that the compiled code for METHOD does not have to be looked up
3779 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3780 * its METHOD argument.
3783 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3785 MonoMethodSignature *sig, *csig, *callsig;
3786 MonoMethodBuilder *mb;
3787 GHashTable *cache = NULL;
3788 MonoClass *target_klass;
3789 MonoMethod *res = NULL;
3790 static MonoMethodSignature *cctor_signature = NULL;
3791 static MonoMethodSignature *finalize_signature = NULL;
3793 const char *param_names [16];
3794 gboolean need_direct_wrapper = FALSE;
3799 if (!cctor_signature) {
3800 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3801 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3803 if (!finalize_signature) {
3804 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3805 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3806 finalize_signature->hasthis = 1;
3810 need_direct_wrapper = TRUE;
3813 * Use a separate cache indexed by methods to speed things up and to avoid the
3814 * boundless mempool growth caused by the signature_dup stuff below.
3817 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3819 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3820 res = mono_marshal_find_in_cache (cache, method);
3824 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3825 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3827 * Array Get/Set/Address methods. The JIT implements them using inline code
3828 * so we need to create an invoke wrapper which calls the method directly.
3830 need_direct_wrapper = TRUE;
3833 if (method->string_ctor) {
3834 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3836 callsig = add_string_ctor_signature (method);
3837 /* Can't share this as we push a string as this */
3838 need_direct_wrapper = TRUE;
3840 if (method_is_dynamic (method))
3841 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3843 callsig = mono_method_signature (method);
3846 target_klass = get_wrapper_target_class (method->klass->image);
3848 /* Try to share wrappers for non-corlib methods with simple signatures */
3849 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3850 callsig = cctor_signature;
3851 target_klass = mono_defaults.object_class;
3852 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3853 callsig = finalize_signature;
3854 target_klass = mono_defaults.object_class;
3857 if (need_direct_wrapper) {
3858 /* Already searched at the start */
3860 MonoMethodSignature *tmp_sig;
3862 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3864 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3865 /* These have a different csig */
3866 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3867 (GHashFunc)mono_signature_hash,
3868 (GCompareFunc)runtime_invoke_signature_equal);
3870 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3871 (GHashFunc)mono_signature_hash,
3872 (GCompareFunc)runtime_invoke_signature_equal);
3874 /* from mono_marshal_find_in_cache */
3875 mono_marshal_lock ();
3876 res = g_hash_table_lookup (cache, callsig);
3877 mono_marshal_unlock ();
3884 /* Make a copy of the signature from the image mempool */
3886 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3890 sig = mono_method_signature (method);
3892 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3894 csig->ret = &mono_defaults.object_class->byval_arg;
3895 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3896 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3898 csig->params [0] = &mono_defaults.object_class->byval_arg;
3899 csig->params [1] = &mono_defaults.int_class->byval_arg;
3900 csig->params [2] = &mono_defaults.int_class->byval_arg;
3901 csig->params [3] = &mono_defaults.int_class->byval_arg;
3904 /* This is called from runtime code so it has to be cdecl */
3905 csig->call_convention = MONO_CALL_C;
3908 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3909 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3913 param_names [0] = "this";
3914 param_names [1] = "params";
3915 param_names [2] = "exc";
3916 param_names [3] = "method";
3917 mono_mb_set_param_names (mb, param_names);
3919 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3922 if (need_direct_wrapper) {
3924 mb->skip_visibility = 1;
3926 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3927 info->d.runtime_invoke.method = method;
3928 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3930 /* taken from mono_mb_create_and_cache */
3931 mono_marshal_lock ();
3932 res = g_hash_table_lookup (cache, callsig);
3933 mono_marshal_unlock ();
3935 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3936 info->d.runtime_invoke.sig = callsig;
3938 /* Somebody may have created it before us */
3941 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3943 mono_marshal_lock ();
3944 res = g_hash_table_lookup (cache, callsig);
3947 g_hash_table_insert (cache, callsig, res);
3948 /* Can't insert it into wrapper_hash since the key is a signature */
3949 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3951 mono_free_method (newm);
3953 mono_marshal_unlock ();
3956 /* end mono_mb_create_and_cache */
3965 * mono_marshal_get_runtime_invoke_dynamic:
3967 * Return a method which can be used to invoke managed methods from native code
3969 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3970 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3971 * ARGS should point to an architecture specific structure containing
3972 * the arguments and space for the return value.
3973 * The other arguments are the same as for runtime_invoke (), except that
3974 * ARGS should contain the this argument too.
3975 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3976 * is only one copy of it, which is useful in full-aot.
3977 * The wrapper info for the wrapper is a WrapperInfo structure.
3980 mono_marshal_get_runtime_invoke_dynamic (void)
3982 static MonoMethod *method;
3983 MonoMethodSignature *csig;
3984 MonoExceptionClause *clause;
3985 MonoMethodBuilder *mb;
3993 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3995 csig->ret = &mono_defaults.void_class->byval_arg;
3996 csig->params [0] = &mono_defaults.int_class->byval_arg;
3997 csig->params [1] = &mono_defaults.int_class->byval_arg;
3998 csig->params [2] = &mono_defaults.int_class->byval_arg;
3999 csig->params [3] = &mono_defaults.int_class->byval_arg;
4001 name = g_strdup ("runtime_invoke_dynamic");
4002 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4006 /* allocate local 0 (object) tmp */
4007 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4008 /* allocate local 1 (object) exc */
4009 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4011 /* cond set *exc to null */
4012 mono_mb_emit_byte (mb, CEE_LDARG_1);
4013 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4014 mono_mb_emit_byte (mb, 3);
4015 mono_mb_emit_byte (mb, CEE_LDARG_1);
4016 mono_mb_emit_byte (mb, CEE_LDNULL);
4017 mono_mb_emit_byte (mb, CEE_STIND_REF);
4019 emit_thread_force_interrupt_checkpoint (mb);
4021 mono_mb_emit_byte (mb, CEE_LDARG_0);
4022 mono_mb_emit_byte (mb, CEE_LDARG_2);
4023 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4024 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4026 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4028 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4029 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4030 clause->try_len = mono_mb_get_label (mb);
4033 clause->data.filter_offset = mono_mb_get_label (mb);
4035 mono_mb_emit_byte (mb, CEE_POP);
4036 mono_mb_emit_byte (mb, CEE_LDARG_1);
4037 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4038 mono_mb_emit_byte (mb, CEE_PREFIX1);
4039 mono_mb_emit_byte (mb, CEE_CGT_UN);
4040 mono_mb_emit_byte (mb, CEE_PREFIX1);
4041 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4043 clause->handler_offset = mono_mb_get_label (mb);
4046 /* store exception */
4047 mono_mb_emit_stloc (mb, 1);
4049 mono_mb_emit_byte (mb, CEE_LDARG_1);
4050 mono_mb_emit_ldloc (mb, 1);
4051 mono_mb_emit_byte (mb, CEE_STIND_REF);
4053 mono_mb_emit_byte (mb, CEE_LDNULL);
4054 mono_mb_emit_stloc (mb, 0);
4056 /* Check for the abort exception */
4057 mono_mb_emit_ldloc (mb, 1);
4058 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4059 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4061 /* Delay the abort exception */
4062 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4064 mono_mb_patch_short_branch (mb, posna);
4065 mono_mb_emit_branch (mb, CEE_LEAVE);
4067 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4069 mono_mb_set_clauses (mb, 1, clause);
4072 mono_mb_patch_branch (mb, pos);
4073 //mono_mb_emit_ldloc (mb, 0);
4074 mono_mb_emit_byte (mb, CEE_RET);
4075 #endif /* DISABLE_JIT */
4077 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4079 mono_marshal_lock ();
4080 /* double-checked locking */
4082 method = mono_mb_create (mb, csig, 16, info);
4084 mono_marshal_unlock ();
4093 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4095 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4096 klass->name_space, klass->name);
4098 mono_mb_emit_exception_marshal_directive (mb, msg);
4103 * generates IL code for the icall wrapper (the generated method
4104 * calls the unmanaged code in func)
4105 * The wrapper info for the wrapper is a WrapperInfo structure.
4108 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4110 MonoMethodSignature *csig, *csig2;
4111 MonoMethodBuilder *mb;
4116 g_assert (sig->pinvoke);
4118 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4120 mb->method->save_lmf = 1;
4122 /* Add an explicit this argument */
4124 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4126 csig2 = signature_dup (mono_defaults.corlib, sig);
4130 mono_mb_emit_byte (mb, CEE_LDARG_0);
4132 for (i = 0; i < sig->param_count; i++)
4133 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4135 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4136 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4137 mono_mb_emit_calli (mb, csig2);
4138 if (check_exceptions)
4139 emit_thread_interrupt_checkpoint (mb);
4140 mono_mb_emit_byte (mb, CEE_RET);
4143 csig = signature_dup (mono_defaults.corlib, sig);
4145 if (csig->call_convention == MONO_CALL_VARARG)
4146 csig->call_convention = 0;
4148 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4149 info->d.icall.func = (gpointer)func;
4150 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4157 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4158 MonoMarshalSpec *spec,
4159 int conv_arg, MonoType **conv_arg_type,
4160 MarshalAction action)
4163 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4164 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4169 static MonoClass *ICustomMarshaler = NULL;
4170 static MonoMethod *cleanup_native, *cleanup_managed;
4171 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4172 MonoMethod *get_instance = NULL;
4173 MonoMethodBuilder *mb = m->mb;
4174 char *exception_msg = NULL;
4178 if (!ICustomMarshaler) {
4179 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4181 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4182 goto handle_exception;
4185 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4186 g_assert (cleanup_native);
4187 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4188 g_assert (cleanup_managed);
4189 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4190 g_assert (marshal_managed_to_native);
4191 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4192 g_assert (marshal_native_to_managed);
4194 mono_memory_barrier ();
4195 ICustomMarshaler = klass;
4198 if (spec->data.custom_data.image)
4199 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4201 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4202 g_assert (mtype != NULL);
4203 mklass = mono_class_from_mono_type (mtype);
4204 g_assert (mklass != NULL);
4206 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4207 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4209 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4211 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4212 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4213 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4214 (get_sig->params [0]->type != MONO_TYPE_STRING))
4215 get_instance = NULL;
4219 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement a static GetInstance method that takes a single string parameter and returns an ICustomMarshaler.", mklass->name);
4222 /* Throw exception and emit compensation code if neccesary */
4223 if (exception_msg) {
4225 case MARSHAL_ACTION_CONV_IN:
4226 case MARSHAL_ACTION_CONV_RESULT:
4227 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4228 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4229 mono_mb_emit_byte (mb, CEE_POP);
4231 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4232 g_free (exception_msg);
4235 case MARSHAL_ACTION_PUSH:
4236 mono_mb_emit_byte (mb, CEE_LDNULL);
4244 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4245 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4248 case MARSHAL_ACTION_CONV_IN:
4250 case MONO_TYPE_CLASS:
4251 case MONO_TYPE_OBJECT:
4252 case MONO_TYPE_STRING:
4253 case MONO_TYPE_ARRAY:
4254 case MONO_TYPE_SZARRAY:
4255 case MONO_TYPE_VALUETYPE:
4259 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4260 g_assert_not_reached ();
4264 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4266 mono_mb_emit_byte (mb, CEE_LDNULL);
4267 mono_mb_emit_stloc (mb, conv_arg);
4269 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4272 /* Minic MS.NET behavior */
4273 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4276 /* Check for null */
4277 mono_mb_emit_ldarg (mb, argnum);
4279 mono_mb_emit_byte (mb, CEE_LDIND_I);
4280 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4282 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4284 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4286 mono_mb_emit_ldarg (mb, argnum);
4288 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4290 if (t->type == MONO_TYPE_VALUETYPE) {
4292 * Since we can't determine the type of the argument, we
4293 * will assume the unmanaged function takes a pointer.
4295 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4297 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4300 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4301 mono_mb_emit_stloc (mb, conv_arg);
4303 mono_mb_patch_branch (mb, pos2);
4306 case MARSHAL_ACTION_CONV_OUT:
4307 /* Check for null */
4308 mono_mb_emit_ldloc (mb, conv_arg);
4309 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4312 mono_mb_emit_ldarg (mb, argnum);
4314 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4316 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4318 mono_mb_emit_ldloc (mb, conv_arg);
4319 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4320 mono_mb_emit_byte (mb, CEE_STIND_REF);
4321 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4322 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4324 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4326 mono_mb_emit_ldloc (mb, conv_arg);
4327 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4329 /* We have nowhere to store the result */
4330 mono_mb_emit_byte (mb, CEE_POP);
4333 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4335 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4337 mono_mb_emit_ldloc (mb, conv_arg);
4339 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4341 mono_mb_patch_branch (mb, pos2);
4344 case MARSHAL_ACTION_PUSH:
4346 mono_mb_emit_ldloc_addr (mb, conv_arg);
4348 mono_mb_emit_ldloc (mb, conv_arg);
4351 case MARSHAL_ACTION_CONV_RESULT:
4352 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4354 mono_mb_emit_stloc (mb, 3);
4356 mono_mb_emit_ldloc (mb, 3);
4357 mono_mb_emit_stloc (mb, loc1);
4359 /* Check for null */
4360 mono_mb_emit_ldloc (mb, 3);
4361 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4363 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4365 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4366 mono_mb_emit_byte (mb, CEE_DUP);
4368 mono_mb_emit_ldloc (mb, 3);
4369 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4370 mono_mb_emit_stloc (mb, 3);
4372 mono_mb_emit_ldloc (mb, loc1);
4373 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4375 mono_mb_patch_branch (mb, pos2);
4378 case MARSHAL_ACTION_MANAGED_CONV_IN:
4379 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4381 mono_mb_emit_byte (mb, CEE_LDNULL);
4382 mono_mb_emit_stloc (mb, conv_arg);
4384 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4387 /* Check for null */
4388 mono_mb_emit_ldarg (mb, argnum);
4390 mono_mb_emit_byte (mb, CEE_LDIND_I);
4391 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4393 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4394 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4396 mono_mb_emit_ldarg (mb, argnum);
4398 mono_mb_emit_byte (mb, CEE_LDIND_I);
4400 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4401 mono_mb_emit_stloc (mb, conv_arg);
4403 mono_mb_patch_branch (mb, pos2);
4406 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4407 g_assert (!t->byref);
4409 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4411 mono_mb_emit_stloc (mb, 3);
4413 mono_mb_emit_ldloc (mb, 3);
4414 mono_mb_emit_stloc (mb, loc1);
4416 /* Check for null */
4417 mono_mb_emit_ldloc (mb, 3);
4418 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4420 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4421 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4422 mono_mb_emit_byte (mb, CEE_DUP);
4424 mono_mb_emit_ldloc (mb, 3);
4425 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4426 mono_mb_emit_stloc (mb, 3);
4428 mono_mb_emit_ldloc (mb, loc1);
4429 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4431 mono_mb_patch_branch (mb, pos2);
4434 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4436 /* Check for null */
4437 mono_mb_emit_ldloc (mb, conv_arg);
4438 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4441 mono_mb_emit_ldarg (mb, argnum);
4443 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4445 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4447 mono_mb_emit_ldloc (mb, conv_arg);
4448 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4449 mono_mb_emit_byte (mb, CEE_STIND_I);
4452 /* Call CleanUpManagedData */
4453 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4455 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4457 mono_mb_emit_ldloc (mb, conv_arg);
4458 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4460 mono_mb_patch_branch (mb, pos2);
4464 g_assert_not_reached ();
4472 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4473 MonoMarshalSpec *spec,
4474 int conv_arg, MonoType **conv_arg_type,
4475 MarshalAction action)
4478 MonoMethodBuilder *mb = m->mb;
4481 case MARSHAL_ACTION_CONV_IN: {
4482 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4484 g_assert (t->type == MONO_TYPE_OBJECT);
4485 g_assert (!t->byref);
4487 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4488 mono_mb_emit_ldarg (mb, argnum);
4489 mono_mb_emit_icon (mb, encoding);
4490 mono_mb_emit_icon (mb, t->attrs);
4491 mono_mb_emit_icall (mb, mono_marshal_asany);
4492 mono_mb_emit_stloc (mb, conv_arg);
4496 case MARSHAL_ACTION_PUSH:
4497 mono_mb_emit_ldloc (mb, conv_arg);
4500 case MARSHAL_ACTION_CONV_OUT: {
4501 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4503 mono_mb_emit_ldarg (mb, argnum);
4504 mono_mb_emit_ldloc (mb, conv_arg);
4505 mono_mb_emit_icon (mb, encoding);
4506 mono_mb_emit_icon (mb, t->attrs);
4507 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4512 g_assert_not_reached ();
4519 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4520 MonoMarshalSpec *spec,
4521 int conv_arg, MonoType **conv_arg_type,
4522 MarshalAction action)
4525 MonoMethodBuilder *mb = m->mb;
4526 MonoClass *klass, *date_time_class;
4529 klass = mono_class_from_mono_type (t);
4531 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4534 case MARSHAL_ACTION_CONV_IN:
4535 if (klass == date_time_class) {
4536 /* Convert it to an OLE DATE type */
4537 static MonoMethod *to_oadate;
4540 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4541 g_assert (to_oadate);
4543 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4546 mono_mb_emit_ldarg (mb, argnum);
4547 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4550 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4552 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4554 mono_mb_emit_ldarg_addr (mb, argnum);
4555 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4556 mono_mb_emit_stloc (mb, conv_arg);
4560 mono_mb_patch_branch (mb, pos);
4564 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4565 klass->blittable || klass->enumtype)
4568 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4570 /* store the address of the source into local variable 0 */
4572 mono_mb_emit_ldarg (mb, argnum);
4574 mono_mb_emit_ldarg_addr (mb, argnum);
4576 mono_mb_emit_stloc (mb, 0);
4578 /* allocate space for the native struct and
4579 * store the address into local variable 1 (dest) */
4580 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4581 mono_mb_emit_byte (mb, CEE_PREFIX1);
4582 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4583 mono_mb_emit_stloc (mb, conv_arg);
4586 mono_mb_emit_ldloc (mb, 0);
4587 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4590 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4592 mono_mb_emit_ldloc (mb, conv_arg);
4593 mono_mb_emit_stloc (mb, 1);
4595 /* emit valuetype conversion code */
4596 emit_struct_conv (mb, klass, FALSE);
4600 mono_mb_patch_branch (mb, pos);
4603 case MARSHAL_ACTION_PUSH:
4604 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4606 g_assert (!t->byref);
4608 /* Have to change the signature since the vtype is passed byref */
4609 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4611 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4612 klass->blittable || klass->enumtype)
4613 mono_mb_emit_ldarg_addr (mb, argnum);
4615 mono_mb_emit_ldloc (mb, conv_arg);
4619 if (klass == date_time_class) {
4621 mono_mb_emit_ldloc_addr (mb, conv_arg);
4623 mono_mb_emit_ldloc (mb, conv_arg);
4627 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4628 klass->blittable || klass->enumtype) {
4629 mono_mb_emit_ldarg (mb, argnum);
4632 mono_mb_emit_ldloc (mb, conv_arg);
4634 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4635 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4639 case MARSHAL_ACTION_CONV_OUT:
4640 if (klass == date_time_class) {
4641 /* Convert from an OLE DATE type */
4642 static MonoMethod *from_oadate;
4647 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4649 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4650 g_assert (from_oadate);
4652 mono_mb_emit_ldarg (mb, argnum);
4653 mono_mb_emit_ldloc (mb, conv_arg);
4654 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4655 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4660 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4661 klass->blittable || klass->enumtype)
4665 /* dst = argument */
4666 mono_mb_emit_ldarg (mb, argnum);
4667 mono_mb_emit_stloc (mb, 1);
4669 mono_mb_emit_ldloc (mb, 1);
4670 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4672 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4673 /* src = tmp_locals [i] */
4674 mono_mb_emit_ldloc (mb, conv_arg);
4675 mono_mb_emit_stloc (mb, 0);
4677 /* emit valuetype conversion code */
4678 emit_struct_conv (mb, klass, TRUE);
4682 emit_struct_free (mb, klass, conv_arg);
4685 mono_mb_patch_branch (mb, pos);
4688 case MARSHAL_ACTION_CONV_RESULT:
4689 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4691 mono_mb_emit_stloc (mb, 3);
4695 /* load pointer to returned value type */
4696 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4697 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4698 /* store the address of the source into local variable 0 */
4699 mono_mb_emit_stloc (mb, 0);
4701 mono_mb_emit_ldloc_addr (mb, 3);
4702 mono_mb_emit_stloc (mb, 1);
4704 /* emit valuetype conversion code */
4705 emit_struct_conv (mb, klass, TRUE);
4708 case MARSHAL_ACTION_MANAGED_CONV_IN:
4709 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4710 klass->blittable || klass->enumtype) {
4715 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4717 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4721 mono_mb_emit_ldarg (mb, argnum);
4723 mono_mb_emit_ldarg_addr (mb, argnum);
4724 mono_mb_emit_stloc (mb, 0);
4727 mono_mb_emit_ldloc (mb, 0);
4728 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4731 mono_mb_emit_ldloc_addr (mb, conv_arg);
4732 mono_mb_emit_stloc (mb, 1);
4734 /* emit valuetype conversion code */
4735 emit_struct_conv (mb, klass, TRUE);
4738 mono_mb_patch_branch (mb, pos);
4741 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4742 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4743 klass->blittable || klass->enumtype) {
4747 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4750 /* Check for null */
4751 mono_mb_emit_ldarg (mb, argnum);
4752 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4755 mono_mb_emit_ldloc_addr (mb, conv_arg);
4756 mono_mb_emit_stloc (mb, 0);
4759 mono_mb_emit_ldarg (mb, argnum);
4760 mono_mb_emit_stloc (mb, 1);
4762 /* emit valuetype conversion code */
4763 emit_struct_conv (mb, klass, FALSE);
4765 mono_mb_patch_branch (mb, pos2);
4768 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4769 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4770 klass->blittable || klass->enumtype) {
4771 mono_mb_emit_stloc (mb, 3);
4776 /* load pointer to returned value type */
4777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4778 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4780 /* store the address of the source into local variable 0 */
4781 mono_mb_emit_stloc (mb, 0);
4782 /* allocate space for the native struct and
4783 * store the address into dst_ptr */
4784 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4785 m->retobj_class = klass;
4786 g_assert (m->retobj_var);
4787 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4788 mono_mb_emit_byte (mb, CEE_CONV_I);
4789 mono_mb_emit_icall (mb, mono_marshal_alloc);
4790 mono_mb_emit_stloc (mb, 1);
4791 mono_mb_emit_ldloc (mb, 1);
4792 mono_mb_emit_stloc (mb, m->retobj_var);
4794 /* emit valuetype conversion code */
4795 emit_struct_conv (mb, klass, FALSE);
4799 g_assert_not_reached ();
4806 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4807 MonoMarshalSpec *spec,
4808 int conv_arg, MonoType **conv_arg_type,
4809 MarshalAction action)
4813 case MARSHAL_ACTION_CONV_IN:
4814 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4816 case MARSHAL_ACTION_MANAGED_CONV_IN:
4817 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4821 MonoMethodBuilder *mb = m->mb;
4822 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4823 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4827 case MARSHAL_ACTION_CONV_IN:
4828 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4829 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4832 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4835 mono_mb_emit_ldarg (mb, argnum);
4836 mono_mb_emit_byte (mb, CEE_LDIND_I);
4838 mono_mb_emit_ldarg (mb, argnum);
4842 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4843 mono_mb_emit_exception_marshal_directive (mb, msg);
4845 mono_mb_emit_icall (mb, conv_to_icall (conv));
4847 mono_mb_emit_stloc (mb, conv_arg);
4851 case MARSHAL_ACTION_CONV_OUT:
4852 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4854 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4855 mono_mb_emit_exception_marshal_directive (mb, msg);
4859 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4860 static MonoMethod *m;
4863 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4868 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4869 mono_mb_emit_exception_marshal_directive (mb, msg);
4874 * Have to allocate a new string with the same length as the original, and
4875 * copy the contents of the buffer pointed to by CONV_ARG into it.
4877 g_assert (t->byref);
4878 mono_mb_emit_ldarg (mb, argnum);
4879 mono_mb_emit_ldloc (mb, conv_arg);
4880 mono_mb_emit_ldarg (mb, argnum);
4881 mono_mb_emit_byte (mb, CEE_LDIND_I);
4882 mono_mb_emit_managed_call (mb, m, NULL);
4883 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4884 mono_mb_emit_byte (mb, CEE_STIND_REF);
4885 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4886 mono_mb_emit_ldarg (mb, argnum);
4887 mono_mb_emit_ldloc (mb, conv_arg);
4888 mono_mb_emit_icall (mb, conv_to_icall (conv));
4889 mono_mb_emit_byte (mb, CEE_STIND_REF);
4894 mono_mb_emit_ldloc (mb, conv_arg);
4895 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4896 mono_mb_emit_icall (mb, mono_free_bstr);
4898 mono_mb_emit_icall (mb, mono_marshal_free);
4902 case MARSHAL_ACTION_PUSH:
4903 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4904 mono_mb_emit_ldloc_addr (mb, conv_arg);
4906 mono_mb_emit_ldloc (mb, conv_arg);
4909 case MARSHAL_ACTION_CONV_RESULT:
4910 mono_mb_emit_stloc (mb, 0);
4912 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4914 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4915 mono_mb_emit_exception_marshal_directive (mb, msg);
4919 mono_mb_emit_ldloc (mb, 0);
4920 mono_mb_emit_icall (mb, conv_to_icall (conv));
4921 mono_mb_emit_stloc (mb, 3);
4923 /* free the string */
4924 mono_mb_emit_ldloc (mb, 0);
4925 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4926 mono_mb_emit_icall (mb, mono_free_bstr);
4928 mono_mb_emit_icall (mb, mono_marshal_free);
4931 case MARSHAL_ACTION_MANAGED_CONV_IN:
4932 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4934 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4937 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4941 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4943 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4944 mono_mb_emit_exception_marshal_directive (mb, msg);
4948 mono_mb_emit_ldarg (mb, argnum);
4950 mono_mb_emit_byte (mb, CEE_LDIND_I);
4951 mono_mb_emit_icall (mb, conv_to_icall (conv));
4952 mono_mb_emit_stloc (mb, conv_arg);
4955 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4958 mono_mb_emit_ldarg (mb, argnum);
4959 mono_mb_emit_ldloc (mb, conv_arg);
4960 mono_mb_emit_icall (mb, conv_to_icall (conv));
4961 mono_mb_emit_byte (mb, CEE_STIND_I);
4966 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4967 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4968 /* We need to make a copy so the caller is able to free it */
4969 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4971 mono_mb_emit_icall (mb, conv_to_icall (conv));
4972 mono_mb_emit_stloc (mb, 3);
4976 g_assert_not_reached ();
4984 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4985 MonoMarshalSpec *spec, int conv_arg,
4986 MonoType **conv_arg_type, MarshalAction action)
4989 if (action == MARSHAL_ACTION_CONV_IN)
4990 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4992 MonoMethodBuilder *mb = m->mb;
4995 case MARSHAL_ACTION_CONV_IN: {
4996 MonoType *intptr_type;
4997 int dar_release_slot, pos;
4999 intptr_type = &mono_defaults.int_class->byval_arg;
5000 conv_arg = mono_mb_add_local (mb, intptr_type);
5001 *conv_arg_type = intptr_type;
5003 if (!sh_dangerous_add_ref)
5004 init_safe_handle ();
5006 mono_mb_emit_ldarg (mb, argnum);
5007 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5008 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5010 mono_mb_patch_branch (mb, pos);
5013 * My tests in show that ref SafeHandles are not really
5014 * passed as ref objects. Instead a NULL is passed as the
5017 mono_mb_emit_icon (mb, 0);
5018 mono_mb_emit_stloc (mb, conv_arg);
5022 /* Create local to hold the ref parameter to DangerousAddRef */
5023 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5025 /* set release = false; */
5026 mono_mb_emit_icon (mb, 0);
5027 mono_mb_emit_stloc (mb, dar_release_slot);
5029 /* safehandle.DangerousAddRef (ref release) */
5030 mono_mb_emit_ldarg (mb, argnum);
5031 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5032 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5034 /* Pull the handle field from SafeHandle */
5035 mono_mb_emit_ldarg (mb, argnum);
5036 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5037 mono_mb_emit_byte (mb, CEE_LDIND_I);
5038 mono_mb_emit_stloc (mb, conv_arg);
5043 case MARSHAL_ACTION_PUSH:
5045 mono_mb_emit_ldloc_addr (mb, conv_arg);
5047 mono_mb_emit_ldloc (mb, conv_arg);
5050 case MARSHAL_ACTION_CONV_OUT: {
5051 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5052 int dar_release_slot = conv_arg + 1;
5055 if (!sh_dangerous_release)
5056 init_safe_handle ();
5062 * My tests indicate that ref SafeHandles parameters are not actually
5063 * passed by ref, but instead a new Handle is created regardless of
5064 * whether a change happens in the unmanaged side.
5066 * Also, the Handle is created before calling into unmanaged code,
5067 * but we do not support that mechanism (getting to the original
5068 * handle) and it makes no difference where we create this
5070 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5072 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5075 /* refval = new SafeHandleDerived ()*/
5076 mono_mb_emit_ldarg (mb, argnum);
5077 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5078 mono_mb_emit_byte (mb, CEE_STIND_REF);
5080 /* refval.handle = returned_handle */
5081 mono_mb_emit_ldarg (mb, argnum);
5082 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5083 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5084 mono_mb_emit_ldloc (mb, conv_arg);
5085 mono_mb_emit_byte (mb, CEE_STIND_I);
5087 mono_mb_emit_ldloc (mb, dar_release_slot);
5088 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5089 mono_mb_emit_ldarg (mb, argnum);
5090 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5091 mono_mb_patch_branch (mb, label_next);
5096 case MARSHAL_ACTION_CONV_RESULT: {
5097 MonoMethod *ctor = NULL;
5098 int intptr_handle_slot;
5100 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5101 mono_mb_emit_byte (mb, CEE_POP);
5102 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5106 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5108 mono_mb_emit_byte (mb, CEE_POP);
5109 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5112 /* Store the IntPtr results into a local */
5113 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5114 mono_mb_emit_stloc (mb, intptr_handle_slot);
5116 /* Create return value */
5117 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5118 mono_mb_emit_stloc (mb, 3);
5120 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5121 mono_mb_emit_ldloc (mb, 3);
5122 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5123 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5124 mono_mb_emit_byte (mb, CEE_STIND_I);
5128 case MARSHAL_ACTION_MANAGED_CONV_IN:
5129 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5132 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5133 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5136 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5137 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5140 printf ("Unhandled case for MarshalAction: %d\n", action);
5148 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5149 MonoMarshalSpec *spec, int conv_arg,
5150 MonoType **conv_arg_type, MarshalAction action)
5153 if (action == MARSHAL_ACTION_CONV_IN)
5154 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5156 MonoMethodBuilder *mb = m->mb;
5159 case MARSHAL_ACTION_CONV_IN: {
5160 MonoType *intptr_type;
5162 intptr_type = &mono_defaults.int_class->byval_arg;
5163 conv_arg = mono_mb_add_local (mb, intptr_type);
5164 *conv_arg_type = intptr_type;
5167 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5168 mono_mb_emit_exception_marshal_directive (mb, msg);
5171 mono_mb_emit_ldarg_addr (mb, argnum);
5172 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5173 mono_mb_emit_byte (mb, CEE_ADD);
5174 mono_mb_emit_byte (mb, CEE_LDIND_I);
5175 mono_mb_emit_stloc (mb, conv_arg);
5179 case MARSHAL_ACTION_PUSH:
5180 mono_mb_emit_ldloc (mb, conv_arg);
5183 case MARSHAL_ACTION_CONV_OUT: {
5184 /* no resource release required */
5188 case MARSHAL_ACTION_CONV_RESULT: {
5189 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5190 mono_mb_emit_exception_marshal_directive (mb, msg);
5194 case MARSHAL_ACTION_MANAGED_CONV_IN:
5195 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5198 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5199 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5202 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5203 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5206 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5214 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5215 MonoMarshalSpec *spec,
5216 int conv_arg, MonoType **conv_arg_type,
5217 MarshalAction action)
5220 if (action == MARSHAL_ACTION_CONV_IN)
5221 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5223 MonoMethodBuilder *mb = m->mb;
5224 MonoClass *klass = mono_class_from_mono_type (t);
5228 case MARSHAL_ACTION_CONV_IN:
5229 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5230 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5232 m->orig_conv_args [argnum] = 0;
5234 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5235 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5236 mono_mb_emit_exception_marshal_directive (mb, msg);
5240 if (klass->delegate) {
5242 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5243 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5244 mono_mb_emit_exception_marshal_directive (mb, msg);
5246 mono_mb_emit_byte (mb, CEE_LDNULL);
5247 mono_mb_emit_stloc (mb, conv_arg);
5249 mono_mb_emit_ldarg (mb, argnum);
5250 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5251 mono_mb_emit_stloc (mb, conv_arg);
5253 } else if (klass == mono_defaults.stringbuilder_class) {
5254 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5255 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5259 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5260 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5261 mono_mb_emit_exception_marshal_directive (mb, msg);
5267 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5271 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5272 mono_mb_emit_exception_marshal_directive (mb, msg);
5276 mono_mb_emit_ldarg (mb, argnum);
5278 mono_mb_emit_byte (mb, CEE_LDIND_I);
5280 mono_mb_emit_icall (mb, conv_to_icall (conv));
5281 mono_mb_emit_stloc (mb, conv_arg);
5282 } else if (klass->blittable) {
5283 mono_mb_emit_byte (mb, CEE_LDNULL);
5284 mono_mb_emit_stloc (mb, conv_arg);
5286 mono_mb_emit_ldarg (mb, argnum);
5287 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5289 mono_mb_emit_ldarg (mb, argnum);
5290 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5291 mono_mb_emit_stloc (mb, conv_arg);
5293 mono_mb_patch_branch (mb, pos);
5296 mono_mb_emit_byte (mb, CEE_LDNULL);
5297 mono_mb_emit_stloc (mb, conv_arg);
5300 /* we dont need any conversions for out parameters */
5301 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5304 mono_mb_emit_ldarg (mb, argnum);
5305 mono_mb_emit_byte (mb, CEE_LDIND_I);
5308 mono_mb_emit_ldarg (mb, argnum);
5309 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5310 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5313 /* store the address of the source into local variable 0 */
5314 mono_mb_emit_stloc (mb, 0);
5315 mono_mb_emit_ldloc (mb, 0);
5316 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5318 /* allocate space for the native struct and store the address */
5319 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5320 mono_mb_emit_byte (mb, CEE_PREFIX1);
5321 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5322 mono_mb_emit_stloc (mb, conv_arg);
5325 /* Need to store the original buffer so we can free it later */
5326 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5327 mono_mb_emit_ldloc (mb, conv_arg);
5328 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5331 /* set the src_ptr */
5332 mono_mb_emit_ldloc (mb, 0);
5333 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5334 mono_mb_emit_stloc (mb, 0);
5337 mono_mb_emit_ldloc (mb, conv_arg);
5338 mono_mb_emit_stloc (mb, 1);
5340 /* emit valuetype conversion code */
5341 emit_struct_conv (mb, klass, FALSE);
5343 mono_mb_patch_branch (mb, pos);
5347 case MARSHAL_ACTION_CONV_OUT:
5348 if (klass == mono_defaults.stringbuilder_class) {
5350 MonoMarshalNative encoding;
5351 MonoMarshalConv conv;
5353 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5354 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5356 g_assert (encoding != -1);
5359 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5363 mono_mb_emit_ldarg (mb, argnum);
5364 mono_mb_emit_ldloc (mb, conv_arg);
5367 case MONO_NATIVE_LPWSTR:
5368 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5370 case MONO_NATIVE_LPSTR:
5371 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5374 g_assert_not_reached ();
5377 mono_mb_emit_byte (mb, CEE_STIND_REF);
5379 mono_mb_emit_ldarg (mb, argnum);
5380 mono_mb_emit_ldloc (mb, conv_arg);
5382 mono_mb_emit_icall (mb, conv_to_icall (conv));
5386 mono_mb_emit_ldloc (mb, conv_arg);
5387 mono_mb_emit_icall (mb, mono_marshal_free);
5392 if (klass->delegate) {
5394 mono_mb_emit_ldarg (mb, argnum);
5395 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5396 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5397 mono_mb_emit_ldloc (mb, conv_arg);
5398 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5399 mono_mb_emit_byte (mb, CEE_STIND_REF);
5404 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5405 /* allocate a new object */
5406 mono_mb_emit_ldarg (mb, argnum);
5407 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5408 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5409 mono_mb_emit_byte (mb, CEE_STIND_REF);
5412 /* dst = *argument */
5413 mono_mb_emit_ldarg (mb, argnum);
5416 mono_mb_emit_byte (mb, CEE_LDIND_I);
5418 mono_mb_emit_stloc (mb, 1);
5420 mono_mb_emit_ldloc (mb, 1);
5421 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5423 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5424 mono_mb_emit_ldloc (mb, 1);
5425 mono_mb_emit_icon (mb, sizeof (MonoObject));
5426 mono_mb_emit_byte (mb, CEE_ADD);
5427 mono_mb_emit_stloc (mb, 1);
5429 /* src = tmp_locals [i] */
5430 mono_mb_emit_ldloc (mb, conv_arg);
5431 mono_mb_emit_stloc (mb, 0);
5433 /* emit valuetype conversion code */
5434 emit_struct_conv (mb, klass, TRUE);
5436 /* Free the structure returned by the native code */
5437 emit_struct_free (mb, klass, conv_arg);
5439 if (m->orig_conv_args [argnum]) {
5441 * If the native function changed the pointer, then free
5442 * the original structure plus the new pointer.
5444 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5445 mono_mb_emit_ldloc (mb, conv_arg);
5446 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5448 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5449 g_assert (m->orig_conv_args [argnum]);
5451 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5454 mono_mb_emit_ldloc (mb, conv_arg);
5455 mono_mb_emit_icall (mb, mono_marshal_free);
5457 mono_mb_patch_branch (mb, pos2);
5461 /* Free the original structure passed to native code */
5462 emit_struct_free (mb, klass, conv_arg);
5464 mono_mb_patch_branch (mb, pos);
5467 case MARSHAL_ACTION_PUSH:
5469 mono_mb_emit_ldloc_addr (mb, conv_arg);
5471 mono_mb_emit_ldloc (mb, conv_arg);
5474 case MARSHAL_ACTION_CONV_RESULT:
5475 if (klass->delegate) {
5476 g_assert (!t->byref);
5477 mono_mb_emit_stloc (mb, 0);
5478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5479 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5480 mono_mb_emit_ldloc (mb, 0);
5481 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5482 mono_mb_emit_stloc (mb, 3);
5485 mono_mb_emit_stloc (mb, 0);
5487 /* Make a copy since emit_conv modifies local 0 */
5488 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5489 mono_mb_emit_ldloc (mb, 0);
5490 mono_mb_emit_stloc (mb, loc);
5492 mono_mb_emit_byte (mb, CEE_LDNULL);
5493 mono_mb_emit_stloc (mb, 3);
5495 mono_mb_emit_ldloc (mb, 0);
5496 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5498 /* allocate result object */
5500 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5501 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5502 mono_mb_emit_stloc (mb, 3);
5506 mono_mb_emit_ldloc (mb, 3);
5507 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5508 mono_mb_emit_stloc (mb, 1);
5510 /* emit conversion code */
5511 emit_struct_conv (mb, klass, TRUE);
5513 emit_struct_free (mb, klass, loc);
5515 /* Free the pointer allocated by unmanaged code */
5516 mono_mb_emit_ldloc (mb, loc);
5517 mono_mb_emit_icall (mb, mono_marshal_free);
5518 mono_mb_patch_branch (mb, pos);
5522 case MARSHAL_ACTION_MANAGED_CONV_IN:
5523 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5525 if (klass->delegate) {
5526 g_assert (!t->byref);
5527 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5528 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5529 mono_mb_emit_ldarg (mb, argnum);
5530 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5531 mono_mb_emit_stloc (mb, conv_arg);
5535 if (klass == mono_defaults.stringbuilder_class) {
5536 MonoMarshalNative encoding;
5538 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5541 g_assert (encoding == MONO_NATIVE_LPSTR);
5543 g_assert (!t->byref);
5544 g_assert (encoding != -1);
5546 mono_mb_emit_ldarg (mb, argnum);
5547 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5548 mono_mb_emit_stloc (mb, conv_arg);
5552 /* The class can not have an automatic layout */
5553 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5554 mono_mb_emit_auto_layout_exception (mb, klass);
5558 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5559 mono_mb_emit_byte (mb, CEE_LDNULL);
5560 mono_mb_emit_stloc (mb, conv_arg);
5565 mono_mb_emit_ldarg (mb, argnum);
5569 /* Check for NULL and raise an exception */
5570 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5572 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5574 mono_mb_patch_branch (mb, pos2);
5575 mono_mb_emit_ldarg (mb, argnum);
5576 mono_mb_emit_byte (mb, CEE_LDIND_I);
5579 mono_mb_emit_stloc (mb, 0);
5581 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5582 mono_mb_emit_stloc (mb, conv_arg);
5584 mono_mb_emit_ldloc (mb, 0);
5585 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5587 /* Create and set dst */
5588 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5589 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5590 mono_mb_emit_stloc (mb, conv_arg);
5591 mono_mb_emit_ldloc (mb, conv_arg);
5592 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5593 mono_mb_emit_stloc (mb, 1);
5595 /* emit valuetype conversion code */
5596 emit_struct_conv (mb, klass, TRUE);
5598 mono_mb_patch_branch (mb, pos);
5601 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5603 /* Check for null */
5604 mono_mb_emit_ldloc (mb, conv_arg);
5605 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5606 mono_mb_emit_ldarg (mb, argnum);
5607 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5608 mono_mb_emit_byte (mb, CEE_STIND_REF);
5609 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5611 mono_mb_patch_branch (mb, pos);
5614 mono_mb_emit_ldloc (mb, conv_arg);
5615 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5616 mono_mb_emit_stloc (mb, 0);
5618 /* Allocate and set dest */
5619 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5620 mono_mb_emit_byte (mb, CEE_CONV_I);
5621 mono_mb_emit_icall (mb, mono_marshal_alloc);
5622 mono_mb_emit_stloc (mb, 1);
5624 /* Update argument pointer */
5625 mono_mb_emit_ldarg (mb, argnum);
5626 mono_mb_emit_ldloc (mb, 1);
5627 mono_mb_emit_byte (mb, CEE_STIND_I);
5629 /* emit valuetype conversion code */
5630 emit_struct_conv (mb, klass, FALSE);
5632 mono_mb_patch_branch (mb, pos2);
5634 /* byval [Out] marshalling */
5636 /* FIXME: Handle null */
5639 mono_mb_emit_ldloc (mb, conv_arg);
5640 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5641 mono_mb_emit_stloc (mb, 0);
5644 mono_mb_emit_ldarg (mb, argnum);
5645 mono_mb_emit_stloc (mb, 1);
5647 /* emit valuetype conversion code */
5648 emit_struct_conv (mb, klass, FALSE);
5652 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5653 if (klass->delegate) {
5654 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5655 mono_mb_emit_stloc (mb, 3);
5659 /* The class can not have an automatic layout */
5660 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5661 mono_mb_emit_auto_layout_exception (mb, klass);
5665 mono_mb_emit_stloc (mb, 0);
5666 /* Check for null */
5667 mono_mb_emit_ldloc (mb, 0);
5668 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5669 mono_mb_emit_byte (mb, CEE_LDNULL);
5670 mono_mb_emit_stloc (mb, 3);
5671 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5673 mono_mb_patch_branch (mb, pos);
5676 mono_mb_emit_ldloc (mb, 0);
5677 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5678 mono_mb_emit_stloc (mb, 0);
5680 /* Allocate and set dest */
5681 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5682 mono_mb_emit_byte (mb, CEE_CONV_I);
5683 mono_mb_emit_icall (mb, mono_marshal_alloc);
5684 mono_mb_emit_byte (mb, CEE_DUP);
5685 mono_mb_emit_stloc (mb, 1);
5686 mono_mb_emit_stloc (mb, 3);
5688 emit_struct_conv (mb, klass, FALSE);
5690 mono_mb_patch_branch (mb, pos2);
5694 g_assert_not_reached ();
5705 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5706 MonoMarshalSpec *spec,
5707 int conv_arg, MonoType **conv_arg_type,
5708 MarshalAction action)
5710 MonoMethodBuilder *mb = m->mb;
5711 static MonoMethod *get_object_for_native_variant = NULL;
5712 static MonoMethod *get_native_variant_for_object = NULL;
5714 if (!get_object_for_native_variant)
5715 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5716 g_assert (get_object_for_native_variant);
5718 if (!get_native_variant_for_object)
5719 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5720 g_assert (get_native_variant_for_object);
5723 case MARSHAL_ACTION_CONV_IN: {
5724 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5727 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5729 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5731 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5734 mono_mb_emit_ldarg (mb, argnum);
5736 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5737 mono_mb_emit_ldloc_addr (mb, conv_arg);
5738 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5742 case MARSHAL_ACTION_CONV_OUT: {
5743 static MonoMethod *variant_clear = NULL;
5746 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5747 g_assert (variant_clear);
5750 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5751 mono_mb_emit_ldarg (mb, argnum);
5752 mono_mb_emit_ldloc_addr (mb, conv_arg);
5753 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5754 mono_mb_emit_byte (mb, CEE_STIND_REF);
5757 mono_mb_emit_ldloc_addr (mb, conv_arg);
5758 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5762 case MARSHAL_ACTION_PUSH:
5764 mono_mb_emit_ldloc_addr (mb, conv_arg);
5766 mono_mb_emit_ldloc (mb, conv_arg);
5769 case MARSHAL_ACTION_CONV_RESULT: {
5770 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5771 mono_mb_emit_exception_marshal_directive (mb, msg);
5775 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5776 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5779 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5781 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5783 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5787 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_ldarg_addr (mb, argnum);
5790 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5791 mono_mb_emit_stloc (mb, conv_arg);
5795 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5796 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5797 mono_mb_emit_ldloc (mb, conv_arg);
5798 mono_mb_emit_ldarg (mb, argnum);
5799 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5804 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5805 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5806 mono_mb_emit_exception_marshal_directive (mb, msg);
5811 g_assert_not_reached ();
5817 #endif /* DISABLE_COM */
5818 #endif /* DISABLE_JIT */
5821 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5823 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5824 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5826 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5828 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5840 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5841 MonoMarshalSpec *spec,
5842 int conv_arg, MonoType **conv_arg_type,
5843 MarshalAction action)
5847 case MARSHAL_ACTION_CONV_IN:
5848 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5850 case MARSHAL_ACTION_MANAGED_CONV_IN:
5851 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5855 MonoMethodBuilder *mb = m->mb;
5856 MonoClass *klass = mono_class_from_mono_type (t);
5857 gboolean need_convert, need_free;
5858 MonoMarshalNative encoding;
5860 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5863 case MARSHAL_ACTION_CONV_IN:
5864 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5865 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5867 if (klass->element_class->blittable) {
5868 mono_mb_emit_ldarg (mb, argnum);
5870 mono_mb_emit_byte (mb, CEE_LDIND_I);
5871 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5872 mono_mb_emit_stloc (mb, conv_arg);
5875 guint32 label1, label2, label3;
5876 int index_var, src_var, dest_ptr, esize;
5877 MonoMarshalConv conv;
5878 gboolean is_string = FALSE;
5880 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5882 eklass = klass->element_class;
5884 if (eklass == mono_defaults.string_class) {
5886 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5888 else if (eklass == mono_defaults.stringbuilder_class) {
5890 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5895 if (is_string && conv == -1) {
5896 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5897 mono_mb_emit_exception_marshal_directive (mb, msg);
5901 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5902 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_byte (mb, CEE_LDIND_I);
5905 mono_mb_emit_stloc (mb, src_var);
5908 mono_mb_emit_ldloc (mb, src_var);
5909 mono_mb_emit_stloc (mb, conv_arg);
5910 mono_mb_emit_ldloc (mb, src_var);
5911 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5914 esize = sizeof (gpointer);
5915 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5916 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5918 esize = mono_class_native_size (eklass, NULL);
5920 /* allocate space for the native struct and store the address */
5921 mono_mb_emit_icon (mb, esize);
5922 mono_mb_emit_ldloc (mb, src_var);
5923 mono_mb_emit_byte (mb, CEE_LDLEN);
5925 if (eklass == mono_defaults.string_class) {
5926 /* Make the array bigger for the terminating null */
5927 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5928 mono_mb_emit_byte (mb, CEE_ADD);
5930 mono_mb_emit_byte (mb, CEE_MUL);
5931 mono_mb_emit_byte (mb, CEE_PREFIX1);
5932 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5933 mono_mb_emit_stloc (mb, conv_arg);
5935 mono_mb_emit_ldloc (mb, conv_arg);
5936 mono_mb_emit_stloc (mb, dest_ptr);
5938 /* Emit marshalling loop */
5939 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5940 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5941 mono_mb_emit_stloc (mb, index_var);
5942 label2 = mono_mb_get_label (mb);
5943 mono_mb_emit_ldloc (mb, index_var);
5944 mono_mb_emit_ldloc (mb, src_var);
5945 mono_mb_emit_byte (mb, CEE_LDLEN);
5946 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5948 /* Emit marshalling code */
5951 mono_mb_emit_ldloc (mb, dest_ptr);
5952 mono_mb_emit_ldloc (mb, src_var);
5953 mono_mb_emit_ldloc (mb, index_var);
5954 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5955 mono_mb_emit_icall (mb, conv_to_icall (conv));
5956 mono_mb_emit_byte (mb, CEE_STIND_I);
5958 /* set the src_ptr */
5959 mono_mb_emit_ldloc (mb, src_var);
5960 mono_mb_emit_ldloc (mb, index_var);
5961 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5962 mono_mb_emit_stloc (mb, 0);
5965 mono_mb_emit_ldloc (mb, dest_ptr);
5966 mono_mb_emit_stloc (mb, 1);
5968 /* emit valuetype conversion code */
5969 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5972 mono_mb_emit_add_to_local (mb, index_var, 1);
5973 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5975 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5977 mono_mb_patch_branch (mb, label3);
5979 if (eklass == mono_defaults.string_class) {
5980 /* Null terminate */
5981 mono_mb_emit_ldloc (mb, dest_ptr);
5982 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5983 mono_mb_emit_byte (mb, CEE_STIND_REF);
5986 mono_mb_patch_branch (mb, label1);
5991 case MARSHAL_ACTION_CONV_OUT:
5992 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5993 need_convert = ((klass->element_class == mono_defaults.char_class) && (encoding == MONO_NATIVE_LPWSTR)) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
5994 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5997 if (need_convert || need_free) {
5998 /* FIXME: Optimize blittable case */
6000 guint32 label1, label2, label3;
6001 int index_var, src_ptr, loc, esize;
6003 eklass = klass->element_class;
6004 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6005 esize = sizeof (gpointer);
6006 else if (eklass == mono_defaults.char_class)
6007 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6009 esize = mono_class_native_size (eklass, NULL);
6010 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6011 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6014 mono_mb_emit_ldarg (mb, argnum);
6016 mono_mb_emit_byte (mb, CEE_LDIND_I);
6017 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6019 mono_mb_emit_ldloc (mb, conv_arg);
6020 mono_mb_emit_stloc (mb, src_ptr);
6022 /* Emit marshalling loop */
6023 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6024 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6025 mono_mb_emit_stloc (mb, index_var);
6026 label2 = mono_mb_get_label (mb);
6027 mono_mb_emit_ldloc (mb, index_var);
6028 mono_mb_emit_ldarg (mb, argnum);
6030 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6031 mono_mb_emit_byte (mb, CEE_LDLEN);
6032 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6034 /* Emit marshalling code */
6036 if (eklass == mono_defaults.stringbuilder_class) {
6037 gboolean need_free2;
6038 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6040 g_assert (conv != -1);
6043 mono_mb_emit_ldarg (mb, argnum);
6045 mono_mb_emit_byte (mb, CEE_LDIND_I);
6046 mono_mb_emit_ldloc (mb, index_var);
6047 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6050 mono_mb_emit_ldloc (mb, src_ptr);
6051 mono_mb_emit_byte (mb, CEE_LDIND_I);
6053 mono_mb_emit_icall (mb, conv_to_icall (conv));
6057 mono_mb_emit_ldloc (mb, src_ptr);
6058 mono_mb_emit_byte (mb, CEE_LDIND_I);
6060 mono_mb_emit_icall (mb, mono_marshal_free);
6063 else if (eklass == mono_defaults.string_class) {
6066 mono_mb_emit_ldloc (mb, src_ptr);
6067 mono_mb_emit_byte (mb, CEE_LDIND_I);
6069 mono_mb_emit_icall (mb, mono_marshal_free);
6074 /* set the src_ptr */
6075 mono_mb_emit_ldloc (mb, src_ptr);
6076 mono_mb_emit_stloc (mb, 0);
6079 mono_mb_emit_ldarg (mb, argnum);
6081 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6082 mono_mb_emit_ldloc (mb, index_var);
6083 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6084 mono_mb_emit_stloc (mb, 1);
6086 /* emit valuetype conversion code */
6087 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6091 mono_mb_emit_ldloc (mb, src_ptr);
6092 mono_mb_emit_stloc (mb, loc);
6093 mono_mb_emit_ldloc (mb, loc);
6095 emit_struct_free (mb, eklass, loc);
6099 mono_mb_emit_add_to_local (mb, index_var, 1);
6100 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6102 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6104 mono_mb_patch_branch (mb, label1);
6105 mono_mb_patch_branch (mb, label3);
6108 if (klass->element_class->blittable) {
6109 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6111 mono_mb_emit_ldarg (mb, argnum);
6112 mono_mb_emit_ldloc (mb, conv_arg);
6113 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6118 case MARSHAL_ACTION_PUSH:
6120 mono_mb_emit_ldloc_addr (mb, conv_arg);
6122 mono_mb_emit_ldloc (mb, conv_arg);
6125 case MARSHAL_ACTION_CONV_RESULT:
6126 /* fixme: we need conversions here */
6127 mono_mb_emit_stloc (mb, 3);
6130 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6132 guint32 label1, label2, label3;
6133 int index_var, src_ptr, loc, esize, param_num, num_elem;
6134 MonoMarshalConv conv;
6135 gboolean is_string = FALSE;
6137 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6138 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6141 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6142 mono_mb_emit_exception_marshal_directive (mb, msg);
6146 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6147 mono_mb_emit_exception_marshal_directive (mb, msg);
6150 if (spec->native != MONO_NATIVE_LPARRAY) {
6151 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6152 mono_mb_emit_exception_marshal_directive (mb, msg);
6156 /* FIXME: t is from the method which is wrapped, not the delegate type */
6157 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6159 param_num = spec->data.array_data.param_num;
6160 num_elem = spec->data.array_data.num_elem;
6161 if (spec->data.array_data.elem_mult == 0)
6162 /* param_num is not specified */
6165 if (param_num == -1) {
6166 if (num_elem <= 0) {
6167 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6168 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 /* FIXME: Optimize blittable case */
6175 eklass = klass->element_class;
6176 if (eklass == mono_defaults.string_class) {
6178 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6180 else if (eklass == mono_defaults.stringbuilder_class) {
6182 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6187 mono_marshal_load_type_info (eklass);
6190 esize = sizeof (gpointer);
6192 esize = mono_class_native_size (eklass, NULL);
6193 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6194 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6196 mono_mb_emit_byte (mb, CEE_LDNULL);
6197 mono_mb_emit_stloc (mb, conv_arg);
6199 /* Check param index */
6200 if (param_num != -1) {
6201 if (param_num >= m->sig->param_count) {
6202 char *msg = g_strdup ("Array size control parameter index is out of range.");
6203 mono_mb_emit_exception_marshal_directive (mb, msg);
6206 switch (m->sig->params [param_num]->type) {
6219 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6220 mono_mb_emit_exception_marshal_directive (mb, msg);
6227 mono_mb_emit_ldarg (mb, argnum);
6228 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6230 mono_mb_emit_ldarg (mb, argnum);
6231 mono_mb_emit_stloc (mb, src_ptr);
6233 /* Create managed array */
6235 * The LPArray marshalling spec says that sometimes param_num starts
6236 * from 1, sometimes it starts from 0. But MS seems to allways start
6240 if (param_num == -1) {
6241 mono_mb_emit_icon (mb, num_elem);
6243 mono_mb_emit_ldarg (mb, param_num);
6245 mono_mb_emit_icon (mb, num_elem);
6246 mono_mb_emit_byte (mb, CEE_ADD);
6248 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6251 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6252 mono_mb_emit_stloc (mb, conv_arg);
6254 if (eklass->blittable) {
6255 mono_mb_emit_ldloc (mb, conv_arg);
6256 mono_mb_emit_byte (mb, CEE_CONV_I);
6257 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6258 mono_mb_emit_byte (mb, CEE_ADD);
6259 mono_mb_emit_ldarg (mb, argnum);
6260 mono_mb_emit_ldloc (mb, conv_arg);
6261 mono_mb_emit_byte (mb, CEE_LDLEN);
6262 mono_mb_emit_icon (mb, esize);
6263 mono_mb_emit_byte (mb, CEE_MUL);
6264 mono_mb_emit_byte (mb, CEE_PREFIX1);
6265 mono_mb_emit_byte (mb, CEE_CPBLK);
6269 /* Emit marshalling loop */
6270 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6271 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6272 mono_mb_emit_stloc (mb, index_var);
6273 label2 = mono_mb_get_label (mb);
6274 mono_mb_emit_ldloc (mb, index_var);
6275 mono_mb_emit_ldloc (mb, conv_arg);
6276 mono_mb_emit_byte (mb, CEE_LDLEN);
6277 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6279 /* Emit marshalling code */
6281 g_assert (conv != -1);
6283 mono_mb_emit_ldloc (mb, conv_arg);
6284 mono_mb_emit_ldloc (mb, index_var);
6286 mono_mb_emit_ldloc (mb, src_ptr);
6287 mono_mb_emit_byte (mb, CEE_LDIND_I);
6289 mono_mb_emit_icall (mb, conv_to_icall (conv));
6290 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6293 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6294 mono_mb_emit_exception_marshal_directive (mb, msg);
6298 mono_mb_emit_add_to_local (mb, index_var, 1);
6299 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6301 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6303 mono_mb_patch_branch (mb, label1);
6304 mono_mb_patch_branch (mb, label3);
6308 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6310 guint32 label1, label2, label3;
6311 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6312 MonoMarshalConv conv;
6313 gboolean is_string = FALSE;
6316 /* Already handled in CONV_IN */
6319 /* These are already checked in CONV_IN */
6320 g_assert (!t->byref);
6321 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6322 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6324 param_num = spec->data.array_data.param_num;
6325 num_elem = spec->data.array_data.num_elem;
6327 if (spec->data.array_data.elem_mult == 0)
6328 /* param_num is not specified */
6331 if (param_num == -1) {
6332 if (num_elem <= 0) {
6333 g_assert_not_reached ();
6337 /* FIXME: Optimize blittable case */
6339 eklass = klass->element_class;
6340 if (eklass == mono_defaults.string_class) {
6342 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6344 else if (eklass == mono_defaults.stringbuilder_class) {
6346 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6351 mono_marshal_load_type_info (eklass);
6354 esize = sizeof (gpointer);
6356 esize = mono_class_native_size (eklass, NULL);
6358 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6359 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6362 mono_mb_emit_ldloc (mb, conv_arg);
6363 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6365 mono_mb_emit_ldarg (mb, argnum);
6366 mono_mb_emit_stloc (mb, dest_ptr);
6368 if (eklass->blittable) {
6370 mono_mb_emit_ldarg (mb, argnum);
6372 mono_mb_emit_ldloc (mb, conv_arg);
6373 mono_mb_emit_byte (mb, CEE_CONV_I);
6374 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6375 mono_mb_emit_byte (mb, CEE_ADD);
6377 mono_mb_emit_ldloc (mb, conv_arg);
6378 mono_mb_emit_byte (mb, CEE_LDLEN);
6379 mono_mb_emit_icon (mb, esize);
6380 mono_mb_emit_byte (mb, CEE_MUL);
6381 mono_mb_emit_byte (mb, CEE_PREFIX1);
6382 mono_mb_emit_byte (mb, CEE_CPBLK);
6386 /* Emit marshalling loop */
6387 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6388 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6389 mono_mb_emit_stloc (mb, index_var);
6390 label2 = mono_mb_get_label (mb);
6391 mono_mb_emit_ldloc (mb, index_var);
6392 mono_mb_emit_ldloc (mb, conv_arg);
6393 mono_mb_emit_byte (mb, CEE_LDLEN);
6394 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6396 /* Emit marshalling code */
6398 g_assert (conv != -1);
6401 mono_mb_emit_ldloc (mb, dest_ptr);
6404 mono_mb_emit_ldloc (mb, conv_arg);
6405 mono_mb_emit_ldloc (mb, index_var);
6407 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6409 mono_mb_emit_icall (mb, conv_to_icall (conv));
6410 mono_mb_emit_byte (mb, CEE_STIND_I);
6413 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6414 mono_mb_emit_exception_marshal_directive (mb, msg);
6418 mono_mb_emit_add_to_local (mb, index_var, 1);
6419 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6421 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6423 mono_mb_patch_branch (mb, label1);
6424 mono_mb_patch_branch (mb, label3);
6428 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6430 guint32 label1, label2, label3;
6431 int index_var, src, dest, esize;
6432 MonoMarshalConv conv = -1;
6433 gboolean is_string = FALSE;
6435 g_assert (!t->byref);
6437 eklass = klass->element_class;
6439 mono_marshal_load_type_info (eklass);
6441 if (eklass == mono_defaults.string_class) {
6443 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6446 g_assert_not_reached ();
6450 esize = sizeof (gpointer);
6451 else if (eklass == mono_defaults.char_class)
6452 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6454 esize = mono_class_native_size (eklass, NULL);
6456 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6457 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6459 mono_mb_emit_stloc (mb, src);
6460 mono_mb_emit_ldloc (mb, src);
6461 mono_mb_emit_stloc (mb, 3);
6463 /* Check for null */
6464 mono_mb_emit_ldloc (mb, src);
6465 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6467 /* Allocate native array */
6468 mono_mb_emit_icon (mb, esize);
6469 mono_mb_emit_ldloc (mb, src);
6470 mono_mb_emit_byte (mb, CEE_LDLEN);
6472 if (eklass == mono_defaults.string_class) {
6473 /* Make the array bigger for the terminating null */
6474 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6475 mono_mb_emit_byte (mb, CEE_ADD);
6477 mono_mb_emit_byte (mb, CEE_MUL);
6478 mono_mb_emit_icall (mb, mono_marshal_alloc);
6479 mono_mb_emit_stloc (mb, dest);
6480 mono_mb_emit_ldloc (mb, dest);
6481 mono_mb_emit_stloc (mb, 3);
6483 /* Emit marshalling loop */
6484 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6485 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6486 mono_mb_emit_stloc (mb, index_var);
6487 label2 = mono_mb_get_label (mb);
6488 mono_mb_emit_ldloc (mb, index_var);
6489 mono_mb_emit_ldloc (mb, src);
6490 mono_mb_emit_byte (mb, CEE_LDLEN);
6491 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6493 /* Emit marshalling code */
6495 g_assert (conv != -1);
6498 mono_mb_emit_ldloc (mb, dest);
6501 mono_mb_emit_ldloc (mb, src);
6502 mono_mb_emit_ldloc (mb, index_var);
6504 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6506 mono_mb_emit_icall (mb, conv_to_icall (conv));
6507 mono_mb_emit_byte (mb, CEE_STIND_I);
6510 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6511 mono_mb_emit_exception_marshal_directive (mb, msg);
6515 mono_mb_emit_add_to_local (mb, index_var, 1);
6516 mono_mb_emit_add_to_local (mb, dest, esize);
6518 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6520 mono_mb_patch_branch (mb, label3);
6521 mono_mb_patch_branch (mb, label1);
6525 g_assert_not_reached ();
6532 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6535 return &mono_defaults.int32_class->byval_arg;
6537 switch (spec->native) {
6538 case MONO_NATIVE_I1:
6539 case MONO_NATIVE_U1:
6540 return &mono_defaults.byte_class->byval_arg;
6541 case MONO_NATIVE_VARIANTBOOL:
6542 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6543 return &mono_defaults.int16_class->byval_arg;
6544 case MONO_NATIVE_BOOLEAN:
6545 return &mono_defaults.int32_class->byval_arg;
6547 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6548 return &mono_defaults.int32_class->byval_arg;
6554 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6556 MonoClass* conv_arg_class = mono_defaults.int32_class;
6558 switch (spec->native) {
6559 case MONO_NATIVE_I1:
6560 case MONO_NATIVE_U1:
6561 conv_arg_class = mono_defaults.byte_class;
6562 if (ldop) *ldop = CEE_LDIND_I1;
6564 case MONO_NATIVE_VARIANTBOOL:
6565 conv_arg_class = mono_defaults.int16_class;
6566 if (ldop) *ldop = CEE_LDIND_I2;
6568 case MONO_NATIVE_BOOLEAN:
6571 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6574 return conv_arg_class;
6578 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6579 MonoMarshalSpec *spec,
6580 int conv_arg, MonoType **conv_arg_type,
6581 MarshalAction action)
6585 case MARSHAL_ACTION_CONV_IN:
6587 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6589 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6592 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6593 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6595 *conv_arg_type = &conv_arg_class->this_arg;
6597 *conv_arg_type = &conv_arg_class->byval_arg;
6603 MonoMethodBuilder *mb = m->mb;
6606 case MARSHAL_ACTION_CONV_IN: {
6607 MonoType *local_type;
6609 guint8 ldc_op = CEE_LDC_I4_1;
6611 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6613 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6615 *conv_arg_type = local_type;
6616 conv_arg = mono_mb_add_local (mb, local_type);
6618 mono_mb_emit_ldarg (mb, argnum);
6620 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6621 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6622 mono_mb_emit_byte (mb, ldc_op);
6623 mono_mb_emit_stloc (mb, conv_arg);
6624 mono_mb_patch_branch (mb, label_false);
6629 case MARSHAL_ACTION_CONV_OUT:
6631 int label_false, label_end;
6635 mono_mb_emit_ldarg (mb, argnum);
6636 mono_mb_emit_ldloc (mb, conv_arg);
6638 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6639 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6641 label_end = mono_mb_emit_branch (mb, CEE_BR);
6642 mono_mb_patch_branch (mb, label_false);
6643 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6644 mono_mb_patch_branch (mb, label_end);
6646 mono_mb_emit_byte (mb, CEE_STIND_I1);
6650 case MARSHAL_ACTION_PUSH:
6652 mono_mb_emit_ldloc_addr (mb, conv_arg);
6654 mono_mb_emit_ldloc (mb, conv_arg);
6656 mono_mb_emit_ldarg (mb, argnum);
6659 case MARSHAL_ACTION_CONV_RESULT:
6660 /* maybe we need to make sure that it fits within 8 bits */
6661 mono_mb_emit_stloc (mb, 3);
6664 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6665 MonoClass* conv_arg_class = mono_defaults.int32_class;
6666 guint8 ldop = CEE_LDIND_I4;
6667 int label_null, label_false;
6669 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6670 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6673 *conv_arg_type = &conv_arg_class->this_arg;
6675 *conv_arg_type = &conv_arg_class->byval_arg;
6678 mono_mb_emit_ldarg (mb, argnum);
6682 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6683 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_byte (mb, ldop);
6688 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6689 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6690 mono_mb_emit_stloc (mb, conv_arg);
6691 mono_mb_patch_branch (mb, label_false);
6694 mono_mb_patch_branch (mb, label_null);
6698 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6699 guint8 stop = CEE_STIND_I4;
6700 guint8 ldc_op = CEE_LDC_I4_1;
6701 int label_null,label_false, label_end;;
6706 switch (spec->native) {
6707 case MONO_NATIVE_I1:
6708 case MONO_NATIVE_U1:
6709 stop = CEE_STIND_I1;
6711 case MONO_NATIVE_VARIANTBOOL:
6712 stop = CEE_STIND_I2;
6713 ldc_op = CEE_LDC_I4_M1;
6721 mono_mb_emit_ldarg (mb, argnum);
6722 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6724 mono_mb_emit_ldarg (mb, argnum);
6725 mono_mb_emit_ldloc (mb, conv_arg);
6727 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6728 mono_mb_emit_byte (mb, ldc_op);
6729 label_end = mono_mb_emit_branch (mb, CEE_BR);
6731 mono_mb_patch_branch (mb, label_false);
6732 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6733 mono_mb_patch_branch (mb, label_end);
6735 mono_mb_emit_byte (mb, stop);
6736 mono_mb_patch_branch (mb, label_null);
6741 g_assert_not_reached ();
6748 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6749 MonoMarshalSpec *spec, int conv_arg,
6750 MonoType **conv_arg_type, MarshalAction action)
6753 MonoMethodBuilder *mb = m->mb;
6756 case MARSHAL_ACTION_CONV_IN:
6757 /* MS seems to allow this in some cases, ie. bxc #158 */
6759 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6760 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6761 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6766 case MARSHAL_ACTION_PUSH:
6767 mono_mb_emit_ldarg (mb, argnum);
6770 case MARSHAL_ACTION_CONV_RESULT:
6771 /* no conversions necessary */
6772 mono_mb_emit_stloc (mb, 3);
6783 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6784 MonoMarshalSpec *spec, int conv_arg,
6785 MonoType **conv_arg_type, MarshalAction action)
6788 MonoMethodBuilder *mb = m->mb;
6791 case MARSHAL_ACTION_PUSH:
6792 /* fixme: dont know how to marshal that. We cant simply
6793 * convert it to a one byte UTF8 character, because an
6794 * unicode character may need more that one byte in UTF8 */
6795 mono_mb_emit_ldarg (mb, argnum);
6798 case MARSHAL_ACTION_CONV_RESULT:
6799 /* fixme: we need conversions here */
6800 mono_mb_emit_stloc (mb, 3);
6811 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6812 MonoMarshalSpec *spec, int conv_arg,
6813 MonoType **conv_arg_type, MarshalAction action)
6816 MonoMethodBuilder *mb = m->mb;
6819 case MARSHAL_ACTION_PUSH:
6820 mono_mb_emit_ldarg (mb, argnum);
6823 case MARSHAL_ACTION_CONV_RESULT:
6824 /* no conversions necessary */
6825 mono_mb_emit_stloc (mb, 3);
6836 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6837 MonoMarshalSpec *spec, int conv_arg,
6838 MonoType **conv_arg_type, MarshalAction action)
6840 /* Ensure that we have marshalling info for this param */
6841 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6843 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6844 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6846 if (spec && spec->native == MONO_NATIVE_ASANY)
6847 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6850 case MONO_TYPE_VALUETYPE:
6851 if (t->data.klass == mono_defaults.handleref_class)
6852 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6854 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6855 case MONO_TYPE_STRING:
6856 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6857 case MONO_TYPE_CLASS:
6858 case MONO_TYPE_OBJECT:
6860 if (spec && spec->native == MONO_NATIVE_STRUCT)
6861 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6863 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6864 spec->native == MONO_NATIVE_IDISPATCH ||
6865 spec->native == MONO_NATIVE_INTERFACE))
6866 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6867 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6868 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6869 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6870 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6873 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6874 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6875 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6877 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6878 case MONO_TYPE_ARRAY:
6879 case MONO_TYPE_SZARRAY:
6880 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6881 case MONO_TYPE_BOOLEAN:
6882 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6884 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6885 case MONO_TYPE_CHAR:
6886 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6899 case MONO_TYPE_FNPTR:
6900 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6901 case MONO_TYPE_GENERICINST:
6902 if (mono_type_generic_inst_is_valuetype (t))
6903 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6905 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6912 * mono_marshal_emit_native_wrapper:
6913 * @image: the image to use for looking up custom marshallers
6914 * @sig: The signature of the native function
6915 * @piinfo: Marshalling information
6916 * @mspecs: Marshalling information
6917 * @aot: whenever the created method will be compiled by the AOT compiler
6918 * @method: if non-NULL, the pinvoke method to call
6919 * @check_exceptions: Whenever to check for pending exceptions after the native call
6920 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6922 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6925 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions, gboolean func_param)
6927 EmitMarshalContext m;
6928 MonoMethodSignature *csig;
6930 int i, argnum, *tmp_locals;
6931 int type, param_shift = 0;
6932 static MonoMethodSignature *get_last_error_sig = NULL;
6937 /* we copy the signature, so that we can set pinvoke to 0 */
6939 /* The function address is passed as the first argument */
6940 g_assert (!sig->hasthis);
6943 csig = signature_dup (mb->method->klass->image, sig);
6951 /* we allocate local for use with emit_struct_conv() */
6952 /* allocate local 0 (pointer) src_ptr */
6953 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6954 /* allocate local 1 (pointer) dst_ptr */
6955 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6956 /* allocate local 2 (boolean) delete_old */
6957 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6959 /* delete_old = FALSE */
6960 mono_mb_emit_icon (mb, 0);
6961 mono_mb_emit_stloc (mb, 2);
6963 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6964 /* allocate local 3 to store the return value */
6965 mono_mb_add_local (mb, sig->ret);
6968 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6969 /* Return type custom marshaling */
6971 * Since we can't determine the return type of the unmanaged function,
6972 * we assume it returns a pointer, and pass that pointer to
6973 * MarshalNativeToManaged.
6975 csig->ret = &mono_defaults.int_class->byval_arg;
6978 /* we first do all conversions */
6979 tmp_locals = alloca (sizeof (int) * sig->param_count);
6980 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6982 for (i = 0; i < sig->param_count; i ++) {
6983 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6986 /* push all arguments */
6989 mono_mb_emit_byte (mb, CEE_LDARG_0);
6991 for (i = 0; i < sig->param_count; i++) {
6992 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
6995 /* call the native method */
6997 mono_mb_emit_byte (mb, CEE_LDARG_0);
6998 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
6999 mono_mb_emit_byte (mb, CEE_LDIND_I);
7000 mono_mb_emit_calli (mb, csig);
7001 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7003 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7005 g_assert_not_reached ();
7010 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7011 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7012 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7013 mono_mb_emit_calli (mb, csig);
7015 mono_mb_emit_native_call (mb, csig, func);
7019 /* Set LastError if needed */
7020 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7021 if (!get_last_error_sig) {
7022 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7023 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7024 get_last_error_sig->pinvoke = 1;
7029 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7030 * clobber its value.
7032 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7033 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7035 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7039 /* convert the result */
7040 if (!sig->ret->byref) {
7041 MonoMarshalSpec *spec = mspecs [0];
7042 type = sig->ret->type;
7044 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7045 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7050 case MONO_TYPE_VOID:
7052 case MONO_TYPE_VALUETYPE:
7053 klass = sig->ret->data.klass;
7054 if (klass->enumtype) {
7055 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7058 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7072 case MONO_TYPE_FNPTR:
7073 case MONO_TYPE_STRING:
7074 case MONO_TYPE_CLASS:
7075 case MONO_TYPE_OBJECT:
7076 case MONO_TYPE_BOOLEAN:
7077 case MONO_TYPE_ARRAY:
7078 case MONO_TYPE_SZARRAY:
7079 case MONO_TYPE_CHAR:
7081 case MONO_TYPE_GENERICINST:
7082 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7084 case MONO_TYPE_TYPEDBYREF:
7086 g_warning ("return type 0x%02x unknown", sig->ret->type);
7087 g_assert_not_reached ();
7091 mono_mb_emit_stloc (mb, 3);
7095 * Need to call this after converting the result since MONO_VTADDR needs
7096 * to be adjacent to the call instruction.
7098 if (check_exceptions)
7099 emit_thread_interrupt_checkpoint (mb);
7101 /* we need to convert byref arguments back and free string arrays */
7102 for (i = 0; i < sig->param_count; i++) {
7103 MonoType *t = sig->params [i];
7104 MonoMarshalSpec *spec = mspecs [i + 1];
7106 argnum = i + param_shift;
7108 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7109 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7114 case MONO_TYPE_STRING:
7115 case MONO_TYPE_VALUETYPE:
7116 case MONO_TYPE_CLASS:
7117 case MONO_TYPE_OBJECT:
7118 case MONO_TYPE_SZARRAY:
7119 case MONO_TYPE_BOOLEAN:
7120 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7125 if (!MONO_TYPE_IS_VOID(sig->ret))
7126 mono_mb_emit_ldloc (mb, 3);
7128 mono_mb_emit_byte (mb, CEE_RET);
7130 #endif /* DISABLE_JIT */
7133 G_GNUC_UNUSED static void
7134 code_for (MonoMethod *method) {
7135 MonoMethodHeader *header = mono_method_get_header (method);
7136 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
7140 * mono_marshal_get_native_wrapper:
7141 * @method: The MonoMethod to wrap.
7142 * @check_exceptions: Whenever to check for pending exceptions
7144 * generates IL code for the pinvoke wrapper (the generated method
7145 * calls the unmanaged code in piinfo->addr)
7146 * The wrapper info for the wrapper is a WrapperInfo structure.
7149 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7151 MonoMethodSignature *sig, *csig;
7152 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7153 MonoMethodBuilder *mb;
7154 MonoMarshalSpec **mspecs;
7157 gboolean pinvoke = FALSE;
7160 const char *exc_class = "MissingMethodException";
7161 const char *exc_arg = NULL;
7164 g_assert (method != NULL);
7165 g_assert (mono_method_signature (method)->pinvoke);
7168 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7170 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7171 if ((res = mono_marshal_find_in_cache (cache, method)))
7174 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7175 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7179 return mono_cominterop_get_native_wrapper (method);
7181 g_assert_not_reached ();
7185 sig = mono_method_signature (method);
7187 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7188 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7191 if (!piinfo->addr) {
7193 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7194 exc_arg = "Method contains unsupported native code";
7196 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7198 piinfo->addr = mono_lookup_internal_call (method);
7202 /* hack - redirect certain string constructors to CreateString */
7203 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7204 g_assert (!pinvoke);
7205 g_assert (method->string_ctor);
7206 g_assert (sig->hasthis);
7208 /* CreateString returns a value */
7209 csig = signature_dup (method->klass->image, sig);
7210 csig->ret = &mono_defaults.string_class->byval_arg;
7214 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7215 if (!strcmp ("CreateString", res->name) &&
7216 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7219 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7220 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7222 /* create a wrapper to preserve .ctor in stack trace */
7223 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7226 mono_mb_emit_byte (mb, CEE_LDARG_0);
7227 for (i = 1; i <= csig->param_count; i++)
7228 mono_mb_emit_ldarg (mb, i);
7229 mono_mb_emit_managed_call (mb, res, NULL);
7230 mono_mb_emit_byte (mb, CEE_RET);
7233 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7234 info->d.string_ctor.method = method;
7236 /* use native_wrapper_cache because internal calls are looked up there */
7237 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7238 csig->param_count + 1, info, NULL);
7245 /* exception will be thrown */
7246 piinfo->addr = NULL;
7247 g_warning ("cannot find CreateString for .ctor");
7250 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7252 mb->method->save_lmf = 1;
7255 * In AOT mode and embedding scenarios, it is possible that the icall is not
7256 * registered in the runtime doing the AOT compilation.
7258 if (!piinfo->addr && !aot) {
7260 mono_mb_emit_exception (mb, exc_class, exc_arg);
7262 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7263 info->d.managed_to_native.method = method;
7265 csig = signature_dup (method->klass->image, sig);
7267 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7268 csig->param_count + 16, info, NULL);
7274 /* internal calls: we simply push all arguments and call the method (no conversions) */
7275 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7277 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7279 csig = signature_dup (method->klass->image, sig);
7281 /* hack - string constructors returns a value */
7282 if (method->string_ctor)
7283 csig->ret = &mono_defaults.string_class->byval_arg;
7290 * Add a null check since public icalls can be called with 'call' which
7291 * does no such check.
7293 mono_mb_emit_byte (mb, CEE_LDARG_0);
7294 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7295 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7296 mono_mb_patch_branch (mb, pos);
7298 mono_mb_emit_byte (mb, CEE_LDARG_0);
7301 for (i = 0; i < sig->param_count; i++)
7302 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7305 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7306 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7307 mono_mb_emit_calli (mb, csig);
7309 g_assert (piinfo->addr);
7310 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7312 if (check_exceptions)
7313 emit_thread_interrupt_checkpoint (mb);
7314 mono_mb_emit_byte (mb, CEE_RET);
7316 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7317 info->d.managed_to_native.method = method;
7319 csig = signature_dup (method->klass->image, csig);
7321 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7330 g_assert (piinfo->addr);
7333 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7334 mono_method_get_marshal_info (method, mspecs);
7336 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7338 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7339 info->d.managed_to_native.method = method;
7341 csig = signature_dup (method->klass->image, sig);
7343 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7348 for (i = sig->param_count; i >= 0; i--)
7350 mono_metadata_free_marshal_spec (mspecs [i]);
7354 /* code_for (res); */
7360 * mono_marshal_get_native_func_wrapper:
7361 * @image: The image to use for memory allocation and for looking up custom marshallers.
7362 * @sig: The signature of the function
7363 * @func: The native function to wrap
7365 * Returns a wrapper method around native functions, similar to the pinvoke
7369 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7370 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7372 MonoMethodSignature *csig;
7374 SignaturePointerPair key, *new_key;
7375 MonoMethodBuilder *mb;
7384 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7385 if ((res = mono_marshal_find_in_cache (cache, &key)))
7388 name = g_strdup_printf ("wrapper_native_%p", func);
7389 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7390 mb->method->save_lmf = 1;
7393 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7396 csig = signature_dup (image, sig);
7399 new_key = g_new (SignaturePointerPair,1);
7400 new_key->sig = csig;
7401 new_key->pointer = func;
7403 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7409 mono_marshal_set_wrapper_info (res, NULL);
7415 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7419 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7421 MonoMethodSignature *sig, *csig;
7422 MonoMethodBuilder *mb;
7427 MonoMethodPInvoke mpiinfo;
7428 MonoMethodPInvoke *piinfo = &mpiinfo;
7429 MonoMarshalSpec **mspecs;
7430 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7431 MonoImage *image = invoke->klass->image;
7434 // FIXME: include UnmanagedFunctionPointerAttribute info
7437 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7439 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7440 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7443 memset (&mpiinfo, 0, sizeof (mpiinfo));
7444 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7446 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7447 mono_method_get_marshal_info (invoke, mspecs);
7448 /* Freed below so don't alloc from mempool */
7449 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7452 name = g_strdup_printf ("wrapper_aot_native");
7453 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7454 mb->method->save_lmf = 1;
7457 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7460 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7461 info->d.managed_to_native.method = invoke;
7463 g_assert (!sig->hasthis);
7464 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7466 res = mono_mb_create_and_cache_full (cache, invoke,
7467 mb, csig, csig->param_count + 16,
7471 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7473 mono_metadata_free_marshal_spec (mspecs [i]);
7481 * mono_marshal_emit_managed_wrapper:
7483 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7484 * the delegate which wraps the managed method to be called. For closed delegates,
7485 * it could have fewer parameters than the method it wraps.
7486 * THIS_LOC is the memory location where the target of the delegate is stored.
7489 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7492 MonoMethodSignature *sig, *csig;
7498 /* we first do all conversions */
7499 for (i = 0; i < sig->param_count; i ++) {
7500 MonoType *t = sig->params [i];
7503 case MONO_TYPE_OBJECT:
7504 case MONO_TYPE_CLASS:
7505 case MONO_TYPE_VALUETYPE:
7506 case MONO_TYPE_ARRAY:
7507 case MONO_TYPE_SZARRAY:
7508 case MONO_TYPE_STRING:
7509 case MONO_TYPE_BOOLEAN:
7510 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7514 if (!sig->ret->byref) {
7515 switch (sig->ret->type) {
7516 case MONO_TYPE_STRING:
7517 csig->ret = &mono_defaults.int_class->byval_arg;
7524 MonoMethodSignature *sig, *csig;
7526 gboolean closed = FALSE;
7531 /* allocate local 0 (pointer) src_ptr */
7532 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7533 /* allocate local 1 (pointer) dst_ptr */
7534 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7535 /* allocate local 2 (boolean) delete_old */
7536 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7538 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7539 /* Closed delegate */
7540 g_assert (sig->param_count == invoke_sig->param_count + 1);
7542 /* Use a new signature without the first argument */
7543 sig = mono_metadata_signature_dup (sig);
7544 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7545 sig->param_count --;
7548 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7549 /* allocate local 3 to store the return value */
7550 mono_mb_add_local (mb, sig->ret);
7553 mono_mb_emit_icon (mb, 0);
7554 mono_mb_emit_stloc (mb, 2);
7557 * Might need to attach the thread to the JIT or change the
7558 * domain for the callback.
7560 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7561 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7563 /* we first do all conversions */
7564 tmp_locals = alloca (sizeof (int) * sig->param_count);
7565 for (i = 0; i < sig->param_count; i ++) {
7566 MonoType *t = sig->params [i];
7569 case MONO_TYPE_OBJECT:
7570 case MONO_TYPE_CLASS:
7571 case MONO_TYPE_VALUETYPE:
7572 case MONO_TYPE_ARRAY:
7573 case MONO_TYPE_SZARRAY:
7574 case MONO_TYPE_STRING:
7575 case MONO_TYPE_BOOLEAN:
7576 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7585 emit_thread_interrupt_checkpoint (mb);
7588 if (target_handle) {
7589 mono_mb_emit_icon (mb, (gint32)target_handle);
7590 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7593 g_assert_not_reached ();
7595 } else if (closed) {
7596 mono_mb_emit_icon (mb, (gint32)target_handle);
7597 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7600 for (i = 0; i < sig->param_count; i++) {
7601 MonoType *t = sig->params [i];
7603 if (tmp_locals [i]) {
7605 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7607 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7610 mono_mb_emit_ldarg (mb, i);
7613 mono_mb_emit_managed_call (mb, method, NULL);
7615 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7616 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7617 } else if (!sig->ret->byref) {
7618 switch (sig->ret->type) {
7619 case MONO_TYPE_VOID:
7621 case MONO_TYPE_BOOLEAN:
7624 case MONO_TYPE_CHAR:
7636 case MONO_TYPE_OBJECT:
7637 mono_mb_emit_stloc (mb, 3);
7639 case MONO_TYPE_STRING:
7640 csig->ret = &mono_defaults.int_class->byval_arg;
7641 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7643 case MONO_TYPE_VALUETYPE:
7644 case MONO_TYPE_CLASS:
7645 case MONO_TYPE_SZARRAY:
7646 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7649 g_warning ("return type 0x%02x unknown", sig->ret->type);
7650 g_assert_not_reached ();
7653 mono_mb_emit_stloc (mb, 3);
7656 /* Convert byref arguments back */
7657 for (i = 0; i < sig->param_count; i ++) {
7658 MonoType *t = sig->params [i];
7659 MonoMarshalSpec *spec = mspecs [i + 1];
7661 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7662 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7664 else if (t->byref) {
7666 case MONO_TYPE_CLASS:
7667 case MONO_TYPE_VALUETYPE:
7668 case MONO_TYPE_OBJECT:
7669 case MONO_TYPE_STRING:
7670 case MONO_TYPE_BOOLEAN:
7671 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7675 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7676 /* The [Out] information is encoded in the delegate signature */
7678 case MONO_TYPE_SZARRAY:
7679 case MONO_TYPE_CLASS:
7680 case MONO_TYPE_VALUETYPE:
7681 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7684 g_assert_not_reached ();
7689 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7690 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7692 if (m->retobj_var) {
7693 mono_mb_emit_ldloc (mb, m->retobj_var);
7694 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7695 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7698 if (!MONO_TYPE_IS_VOID(sig->ret))
7699 mono_mb_emit_ldloc (mb, 3);
7700 mono_mb_emit_byte (mb, CEE_RET);
7709 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7711 MonoMethodSignature *sig;
7716 * Under windows, delegates passed to native code must use the STDCALL
7717 * calling convention.
7719 csig->call_convention = MONO_CALL_STDCALL;
7722 sig = mono_method_signature (method);
7724 /* Change default calling convention if needed */
7725 /* Why is this a modopt ? */
7726 if (sig->ret && sig->ret->num_mods) {
7727 for (i = 0; i < sig->ret->num_mods; ++i) {
7729 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7730 g_assert (mono_error_ok (&error));
7731 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7732 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7733 csig->call_convention = MONO_CALL_C;
7734 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7735 csig->call_convention = MONO_CALL_STDCALL;
7736 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7737 csig->call_convention = MONO_CALL_FASTCALL;
7738 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7739 csig->call_convention = MONO_CALL_THISCALL;
7746 * generates IL code to call managed methods from unmanaged code
7747 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7750 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7752 static MonoClass *UnmanagedFunctionPointerAttribute;
7753 MonoMethodSignature *sig, *csig, *invoke_sig;
7754 MonoMethodBuilder *mb;
7755 MonoMethod *res, *invoke;
7756 MonoMarshalSpec **mspecs;
7757 MonoMethodPInvoke piinfo;
7760 EmitMarshalContext m;
7762 g_assert (method != NULL);
7763 g_assert (!mono_method_signature (method)->pinvoke);
7766 * FIXME: Should cache the method+delegate type pair, since the same method
7767 * could be called with different delegates, thus different marshalling
7770 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7771 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7774 invoke = mono_get_delegate_invoke (delegate_klass);
7775 invoke_sig = mono_method_signature (invoke);
7777 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7778 mono_method_get_marshal_info (invoke, mspecs);
7780 sig = mono_method_signature (method);
7782 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7784 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7785 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7787 /* we copy the signature, so that we can modify it */
7789 /* Need to free this later */
7790 csig = mono_metadata_signature_dup (invoke_sig);
7792 csig = signature_dup (method->klass->image, invoke_sig);
7801 m.image = method->klass->image;
7803 mono_marshal_set_callconv_from_modopt (invoke, csig);
7805 /* Handle the UnmanagedFunctionPointerAttribute */
7806 if (!UnmanagedFunctionPointerAttribute)
7807 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7809 /* The attribute is only available in Net 2.0 */
7810 if (UnmanagedFunctionPointerAttribute) {
7811 MonoCustomAttrInfo *cinfo;
7812 MonoCustomAttrEntry *attr;
7815 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7816 * contents of the attribute without constructing it, as that might not be
7817 * possible when running in cross-compiling mode.
7819 cinfo = mono_custom_attrs_from_class (delegate_klass);
7822 for (i = 0; i < cinfo->num_attrs; ++i) {
7823 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7824 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7825 attr = &cinfo->attrs [i];
7831 MonoArray *typed_args, *named_args;
7832 CattrNamedArg *arginfo;
7836 MonoBoolean set_last_error = 0;
7837 MonoBoolean best_fit_mapping = 0;
7838 MonoBoolean throw_on_unmappable = 0;
7841 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7842 g_assert (mono_error_ok (&error));
7843 g_assert (mono_array_length (typed_args) == 1);
7846 o = mono_array_get (typed_args, MonoObject*, 0);
7847 call_conv = *(gint32*)mono_object_unbox (o);
7850 for (i = 0; i < mono_array_length (named_args); ++i) {
7851 CattrNamedArg *narg = &arginfo [i];
7853 o = mono_array_get (named_args, MonoObject*, i);
7855 g_assert (narg->field);
7856 if (!strcmp (narg->field->name, "CharSet")) {
7857 charset = *(gint32*)mono_object_unbox (o);
7858 } else if (!strcmp (narg->field->name, "SetLastError")) {
7859 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7860 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7861 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7862 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7863 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7865 g_assert_not_reached ();
7871 memset (&piinfo, 0, sizeof (piinfo));
7873 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7875 csig->call_convention = call_conv - 1;
7878 if (cinfo && !cinfo->cached)
7879 mono_custom_attrs_free (cinfo);
7882 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7884 if (!target_handle) {
7887 // FIXME: Associate it with the method+delegate_klass pair
7888 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7889 info->d.native_to_managed.method = method;
7890 info->d.native_to_managed.klass = delegate_klass;
7892 res = mono_mb_create_and_cache_full (cache, method,
7893 mb, csig, sig->param_count + 16,
7899 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7903 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7905 mono_metadata_free_marshal_spec (mspecs [i]);
7908 /* code_for (res); */
7914 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7917 MonoMethodSignature *sig;
7918 MonoMethodBuilder *mb;
7923 method = mono_get_method (image, token, NULL);
7926 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7927 MonoMethodSignature *csig;
7928 MonoMarshalSpec **mspecs;
7929 EmitMarshalContext m;
7931 sig = mono_method_signature (method);
7932 g_assert (!sig->hasthis);
7934 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7935 mono_method_get_marshal_info (method, mspecs);
7937 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7938 csig = signature_dup (image, sig);
7949 mono_marshal_set_callconv_from_modopt (method, csig);
7951 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7953 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7958 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7961 for (i = sig->param_count; i >= 0; i--)
7963 mono_metadata_free_marshal_spec (mspecs [i]);
7966 return mono_compile_method (method);
7969 sig = mono_method_signature (method);
7970 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7972 param_count = sig->param_count + sig->hasthis;
7974 for (i = 0; i < param_count; i++)
7975 mono_mb_emit_ldarg (mb, i);
7977 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7978 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7980 mono_mb_emit_op (mb, CEE_CALL, method);
7981 mono_mb_emit_byte (mb, CEE_RET);
7986 method = mono_mb_create (mb, sig, param_count, NULL);
7989 return mono_compile_method (method);
7993 * This does the equivalent of mono_object_castclass_with_cache.
7994 * The wrapper info for the wrapper is a WrapperInfo structure.
7997 mono_marshal_get_castclass_with_cache (void)
7999 static MonoMethod *cached;
8001 MonoMethodBuilder *mb;
8002 MonoMethodSignature *sig;
8003 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8009 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8010 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8011 sig->params [0] = &mono_defaults.object_class->byval_arg;
8012 sig->params [1] = &mono_defaults.int_class->byval_arg;
8013 sig->params [2] = &mono_defaults.int_class->byval_arg;
8014 sig->ret = &mono_defaults.object_class->byval_arg;
8018 /* allocate local 0 (pointer) obj_vtable */
8019 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8022 mono_mb_emit_ldarg (mb, 0);
8023 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8025 /*obj_vtable = obj->vtable;*/
8026 mono_mb_emit_ldarg (mb, 0);
8027 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8028 mono_mb_emit_byte (mb, CEE_LDIND_I);
8029 mono_mb_emit_stloc (mb, 0);
8032 mono_mb_emit_ldarg (mb, 2);
8033 mono_mb_emit_byte (mb, CEE_LDIND_I);
8034 mono_mb_emit_ldloc (mb, 0);
8036 /*if (*cache == obj_vtable)*/
8037 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8040 mono_mb_emit_ldarg (mb, 0);
8041 mono_mb_emit_byte (mb, CEE_RET);
8043 mono_mb_patch_branch (mb, cache_miss_pos);
8044 /*if (mono_object_isinst (obj, klass)) */
8045 mono_mb_emit_ldarg (mb, 0);
8046 mono_mb_emit_ldarg (mb, 1);
8047 mono_mb_emit_icall (mb, mono_object_isinst);
8048 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8050 /**cache = obj_vtable;*/
8051 mono_mb_emit_ldarg (mb, 2);
8052 mono_mb_emit_ldloc (mb, 0);
8053 mono_mb_emit_byte (mb, CEE_STIND_I);
8056 mono_mb_emit_ldarg (mb, 0);
8057 mono_mb_emit_byte (mb, CEE_RET);
8060 mono_mb_patch_branch (mb, invalid_cast_pos);
8061 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8064 mono_mb_patch_branch (mb, return_null_pos);
8065 mono_mb_emit_byte (mb, CEE_LDNULL);
8066 mono_mb_emit_byte (mb, CEE_RET);
8067 #endif /* DISABLE_JIT */
8069 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8070 res = mono_mb_create (mb, sig, 8, info);
8073 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8074 mono_free_method (res);
8075 mono_metadata_free_method_signature (sig);
8083 * This does the equivalent of mono_object_isinst_with_cache.
8084 * The wrapper info for the wrapper is a WrapperInfo structure.
8087 mono_marshal_get_isinst_with_cache (void)
8089 static MonoMethod *cached;
8091 MonoMethodBuilder *mb;
8092 MonoMethodSignature *sig;
8093 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8099 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8100 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8101 sig->params [0] = &mono_defaults.object_class->byval_arg;
8102 sig->params [1] = &mono_defaults.int_class->byval_arg;
8103 sig->params [2] = &mono_defaults.int_class->byval_arg;
8104 sig->ret = &mono_defaults.object_class->byval_arg;
8108 /* allocate local 0 (pointer) obj_vtable */
8109 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8110 /* allocate local 1 (pointer) cached_vtable */
8111 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8114 mono_mb_emit_ldarg (mb, 0);
8115 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8117 /*obj_vtable = obj->vtable;*/
8118 mono_mb_emit_ldarg (mb, 0);
8119 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8120 mono_mb_emit_byte (mb, CEE_LDIND_I);
8121 mono_mb_emit_stloc (mb, 0);
8123 /* cached_vtable = *cache*/
8124 mono_mb_emit_ldarg (mb, 2);
8125 mono_mb_emit_byte (mb, CEE_LDIND_I);
8126 mono_mb_emit_stloc (mb, 1);
8128 mono_mb_emit_ldloc (mb, 1);
8129 mono_mb_emit_byte (mb, CEE_LDC_I4);
8130 mono_mb_emit_i4 (mb, ~0x1);
8131 mono_mb_emit_byte (mb, CEE_CONV_U);
8132 mono_mb_emit_byte (mb, CEE_AND);
8133 mono_mb_emit_ldloc (mb, 0);
8134 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8135 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8137 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8138 mono_mb_emit_ldloc (mb, 1);
8139 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8140 mono_mb_emit_byte (mb, CEE_CONV_U);
8141 mono_mb_emit_byte (mb, CEE_AND);
8142 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8145 mono_mb_emit_ldarg (mb, 0);
8146 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8149 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8150 mono_mb_emit_byte (mb, CEE_LDNULL);
8152 mono_mb_patch_branch (mb, cache_hit_pos);
8153 mono_mb_emit_byte (mb, CEE_RET);
8155 mono_mb_patch_branch (mb, cache_miss_pos);
8156 /*if (mono_object_isinst (obj, klass)) */
8157 mono_mb_emit_ldarg (mb, 0);
8158 mono_mb_emit_ldarg (mb, 1);
8159 mono_mb_emit_icall (mb, mono_object_isinst);
8160 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8162 /**cache = obj_vtable;*/
8163 mono_mb_emit_ldarg (mb, 2);
8164 mono_mb_emit_ldloc (mb, 0);
8165 mono_mb_emit_byte (mb, CEE_STIND_I);
8168 mono_mb_emit_ldarg (mb, 0);
8169 mono_mb_emit_byte (mb, CEE_RET);
8172 mono_mb_patch_branch (mb, not_an_instance_pos);
8173 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8174 mono_mb_emit_ldarg (mb, 2);
8175 /*obj_vtable | 0x1*/
8176 mono_mb_emit_ldloc (mb, 0);
8177 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8178 mono_mb_emit_byte (mb, CEE_CONV_U);
8179 mono_mb_emit_byte (mb, CEE_OR);
8182 mono_mb_emit_byte (mb, CEE_STIND_I);
8185 mono_mb_patch_branch (mb, return_null_pos);
8186 mono_mb_emit_byte (mb, CEE_LDNULL);
8187 mono_mb_emit_byte (mb, CEE_RET);
8190 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8191 res = mono_mb_create (mb, sig, 8, info);
8194 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8195 mono_free_method (res);
8196 mono_metadata_free_method_signature (sig);
8204 * mono_marshal_get_isinst:
8205 * @klass: the type of the field
8207 * This method generates a function which can be used to check if an object is
8208 * an instance of the given type, icluding the case where the object is a proxy.
8209 * The generated function has the following signature:
8210 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8213 mono_marshal_get_isinst (MonoClass *klass)
8215 static MonoMethodSignature *isint_sig = NULL;
8219 int pos_was_ok, pos_end;
8220 #ifndef DISABLE_REMOTING
8221 int pos_end2, pos_failed;
8224 MonoMethodBuilder *mb;
8226 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8227 if ((res = mono_marshal_find_in_cache (cache, klass)))
8231 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8232 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8233 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8234 isint_sig->pinvoke = 0;
8237 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8238 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8241 mb->method->save_lmf = 1;
8244 /* check if the object is a proxy that needs special cast */
8245 mono_mb_emit_ldarg (mb, 0);
8246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8247 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8249 /* The result of MONO_CISINST can be:
8250 0) the type check succeeded
8251 1) the type check did not succeed
8252 2) a CanCastTo call is needed */
8253 #ifndef DISABLE_REMOTING
8254 mono_mb_emit_byte (mb, CEE_DUP);
8255 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8257 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8258 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8260 /* get the real proxy from the transparent proxy*/
8262 mono_mb_emit_ldarg (mb, 0);
8263 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8264 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8268 mono_mb_patch_branch (mb, pos_failed);
8269 mono_mb_emit_byte (mb, CEE_LDNULL);
8270 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8274 mono_mb_patch_branch (mb, pos_was_ok);
8275 mono_mb_emit_byte (mb, CEE_POP);
8276 mono_mb_emit_ldarg (mb, 0);
8280 mono_mb_patch_branch (mb, pos_end);
8281 mono_mb_patch_branch (mb, pos_end2);
8282 mono_mb_emit_byte (mb, CEE_RET);
8284 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8288 mono_mb_emit_byte (mb, CEE_LDNULL);
8289 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8293 mono_mb_patch_branch (mb, pos_was_ok);
8294 mono_mb_emit_ldarg (mb, 0);
8298 mono_mb_patch_branch (mb, pos_end);
8299 mono_mb_emit_byte (mb, CEE_RET);
8300 #endif /* DISABLE_REMOTING */
8301 #endif /* DISABLE_JIT */
8303 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8304 info->d.proxy.klass = klass;
8305 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8312 * mono_marshal_get_castclass:
8313 * @klass: the type of the field
8315 * This method generates a function which can be used to cast an object to
8316 * an instance of the given type, icluding the case where the object is a proxy.
8317 * The generated function has the following signature:
8318 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8319 * The wrapper info for the wrapper is a WrapperInfo structure.
8322 mono_marshal_get_castclass (MonoClass *klass)
8324 static MonoMethodSignature *castclass_sig = NULL;
8327 #ifndef DISABLE_REMOTING
8328 int pos_was_ok, pos_was_ok2;
8331 MonoMethodBuilder *mb;
8334 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8335 if ((res = mono_marshal_find_in_cache (cache, klass)))
8338 if (!castclass_sig) {
8339 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8340 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8341 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8342 castclass_sig->pinvoke = 0;
8345 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8346 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8349 mb->method->save_lmf = 1;
8352 /* check if the object is a proxy that needs special cast */
8353 mono_mb_emit_ldarg (mb, 0);
8354 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8355 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8357 /* The result of MONO_CCASTCLASS can be:
8358 0) the cast is valid
8359 1) cast of unknown proxy type
8360 or an exception if the cast is is invalid
8362 #ifndef DISABLE_REMOTING
8363 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8365 /* get the real proxy from the transparent proxy*/
8367 mono_mb_emit_ldarg (mb, 0);
8368 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8369 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8372 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8375 mono_mb_patch_branch (mb, pos_was_ok);
8376 mono_mb_patch_branch (mb, pos_was_ok2);
8378 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8379 mono_mb_emit_byte (mb, CEE_POP);
8380 #endif /* DISABLE_REMOTING */
8382 mono_mb_emit_ldarg (mb, 0);
8385 mono_mb_emit_byte (mb, CEE_RET);
8386 #endif /* DISABLE_JIT */
8388 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8390 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8398 * mono_marshal_get_struct_to_ptr:
8401 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8402 * The wrapper info for the wrapper is a WrapperInfo structure.
8405 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8407 MonoMethodBuilder *mb;
8408 static MonoMethod *stoptr = NULL;
8412 g_assert (klass != NULL);
8414 mono_marshal_load_type_info (klass);
8416 if (klass->marshal_info->str_to_ptr)
8417 return klass->marshal_info->str_to_ptr;
8420 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8423 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8426 if (klass->blittable) {
8427 mono_mb_emit_byte (mb, CEE_LDARG_1);
8428 mono_mb_emit_byte (mb, CEE_LDARG_0);
8429 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8430 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8431 mono_mb_emit_byte (mb, CEE_PREFIX1);
8432 mono_mb_emit_byte (mb, CEE_CPBLK);
8435 /* allocate local 0 (pointer) src_ptr */
8436 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8437 /* allocate local 1 (pointer) dst_ptr */
8438 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8439 /* allocate local 2 (boolean) delete_old */
8440 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8441 mono_mb_emit_byte (mb, CEE_LDARG_2);
8442 mono_mb_emit_stloc (mb, 2);
8444 /* initialize src_ptr to point to the start of object data */
8445 mono_mb_emit_byte (mb, CEE_LDARG_0);
8446 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8447 mono_mb_emit_stloc (mb, 0);
8449 /* initialize dst_ptr */
8450 mono_mb_emit_byte (mb, CEE_LDARG_1);
8451 mono_mb_emit_stloc (mb, 1);
8453 emit_struct_conv (mb, klass, FALSE);
8456 mono_mb_emit_byte (mb, CEE_RET);
8458 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8459 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8462 klass->marshal_info->str_to_ptr = res;
8467 * mono_marshal_get_ptr_to_struct:
8470 * generates IL code for PtrToStructure (IntPtr src, object structure)
8471 * The wrapper info for the wrapper is a WrapperInfo structure.
8474 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8476 MonoMethodBuilder *mb;
8477 static MonoMethodSignature *ptostr = NULL;
8481 g_assert (klass != NULL);
8483 mono_marshal_load_type_info (klass);
8485 if (klass->marshal_info->ptr_to_str)
8486 return klass->marshal_info->ptr_to_str;
8489 MonoMethodSignature *sig;
8491 /* Create the signature corresponding to
8492 static void PtrToStructure (IntPtr ptr, object structure);
8493 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8494 sig = mono_create_icall_signature ("void ptr object");
8495 sig = signature_dup (mono_defaults.corlib, sig);
8497 mono_memory_barrier ();
8501 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8504 if (klass->blittable) {
8505 mono_mb_emit_byte (mb, CEE_LDARG_1);
8506 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8507 mono_mb_emit_byte (mb, CEE_LDARG_0);
8508 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8509 mono_mb_emit_byte (mb, CEE_PREFIX1);
8510 mono_mb_emit_byte (mb, CEE_CPBLK);
8513 /* allocate local 0 (pointer) src_ptr */
8514 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8515 /* allocate local 1 (pointer) dst_ptr */
8516 mono_mb_add_local (mb, &klass->this_arg);
8518 /* initialize src_ptr to point to the start of object data */
8519 mono_mb_emit_byte (mb, CEE_LDARG_0);
8520 mono_mb_emit_stloc (mb, 0);
8522 /* initialize dst_ptr */
8523 mono_mb_emit_byte (mb, CEE_LDARG_1);
8524 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8525 mono_mb_emit_stloc (mb, 1);
8527 emit_struct_conv (mb, klass, TRUE);
8530 mono_mb_emit_byte (mb, CEE_RET);
8532 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8533 res = mono_mb_create (mb, ptostr, 0, info);
8536 klass->marshal_info->ptr_to_str = res;
8541 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8542 * This is used to avoid infinite recursion since it is hard to determine where to
8543 * replace a method with its synchronized wrapper, and where not.
8544 * The runtime should execute METHOD instead of the wrapper.
8545 * The wrapper info for the wrapper is a WrapperInfo structure.
8548 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8550 MonoMethodBuilder *mb;
8552 MonoMethodSignature *sig;
8554 MonoGenericContext *ctx = NULL;
8555 MonoMethod *orig_method = NULL;
8556 MonoGenericContainer *container = NULL;
8558 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8559 orig_method = method;
8560 ctx = &((MonoMethodInflated*)method)->context;
8561 method = ((MonoMethodInflated*)method)->declaring;
8562 container = mono_method_get_generic_container (method);
8564 container = method->klass->generic_container;
8565 g_assert (container);
8568 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8570 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8571 mono_mb_emit_byte (mb, CEE_RET);
8573 sig = signature_dup (method->klass->image, mono_method_signature (method));
8575 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8576 info->d.synchronized_inner.method = method;
8577 res = mono_mb_create (mb, sig, 0, info);
8581 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8582 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8588 * generates IL code for the synchronized wrapper: the generated method
8589 * calls METHOD while locking 'this' or the parent type.
8592 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8594 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8595 MonoMethodSignature *sig;
8596 MonoExceptionClause *clause;
8597 MonoMethodBuilder *mb;
8600 int i, pos, this_local, ret_local = 0;
8601 MonoGenericContext *ctx = NULL;
8602 MonoMethod *orig_method = NULL;
8603 MonoGenericContainer *container = NULL;
8607 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8610 /* FIXME: Support generic methods too */
8611 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8612 orig_method = method;
8613 ctx = &((MonoMethodInflated*)method)->context;
8614 method = ((MonoMethodInflated*)method)->declaring;
8615 container = mono_method_get_generic_container (method);
8617 container = method->klass->generic_container;
8618 g_assert (container);
8625 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8626 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8630 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8631 if ((res = mono_marshal_find_in_cache (cache, method)))
8635 sig = signature_dup (method->klass->image, mono_method_signature (method));
8638 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8642 if (!MONO_TYPE_IS_VOID (sig->ret))
8643 ret_local = mono_mb_add_local (mb, sig->ret);
8646 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8647 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8649 /* This will throw the type load exception when the wrapper is compiled */
8650 mono_mb_emit_byte (mb, CEE_LDNULL);
8651 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8652 mono_mb_emit_byte (mb, CEE_POP);
8654 if (!MONO_TYPE_IS_VOID (sig->ret))
8655 mono_mb_emit_ldloc (mb, ret_local);
8656 mono_mb_emit_byte (mb, CEE_RET);
8659 res = mono_mb_create_and_cache (cache, method,
8660 mb, sig, sig->param_count + 16);
8668 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8670 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8671 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8674 mono_marshal_lock ();
8676 if (!enter_method) {
8677 MonoMethodDesc *desc;
8679 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8680 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8681 g_assert (enter_method);
8682 mono_method_desc_free (desc);
8684 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8685 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8686 g_assert (exit_method);
8687 mono_method_desc_free (desc);
8689 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8690 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8691 g_assert (gettypefromhandle_method);
8692 mono_method_desc_free (desc);
8695 mono_marshal_unlock ();
8698 /* Push this or the type object */
8699 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8700 /* We have special handling for this in the JIT */
8701 int index = mono_mb_add_data (mb, method->klass);
8702 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8703 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8704 mono_mb_emit_i4 (mb, index);
8706 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8709 mono_mb_emit_ldarg (mb, 0);
8710 mono_mb_emit_stloc (mb, this_local);
8712 /* Call Monitor::Enter() */
8713 mono_mb_emit_ldloc (mb, this_local);
8714 mono_mb_emit_managed_call (mb, enter_method, NULL);
8716 clause->try_offset = mono_mb_get_label (mb);
8718 /* Call the method */
8720 mono_mb_emit_ldarg (mb, 0);
8721 for (i = 0; i < sig->param_count; i++)
8722 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8726 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8727 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8729 mono_mb_emit_managed_call (mb, method, NULL);
8732 if (!MONO_TYPE_IS_VOID (sig->ret))
8733 mono_mb_emit_stloc (mb, ret_local);
8735 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8737 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8738 clause->handler_offset = mono_mb_get_label (mb);
8740 /* Call Monitor::Exit() */
8741 mono_mb_emit_ldloc (mb, this_local);
8742 mono_mb_emit_managed_call (mb, exit_method, NULL);
8743 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8745 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8747 mono_mb_patch_branch (mb, pos);
8748 if (!MONO_TYPE_IS_VOID (sig->ret))
8749 mono_mb_emit_ldloc (mb, ret_local);
8750 mono_mb_emit_byte (mb, CEE_RET);
8752 mono_mb_set_clauses (mb, 1, clause);
8757 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8758 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8760 res = mono_mb_create_and_cache (cache, method,
8761 mb, sig, sig->param_count + 16);
8770 * the returned method calls 'method' unboxing the this argument
8773 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8775 MonoMethodSignature *sig = mono_method_signature (method);
8777 MonoMethodBuilder *mb;
8781 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8782 if ((res = mono_marshal_find_in_cache (cache, method)))
8785 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8787 g_assert (sig->hasthis);
8790 mono_mb_emit_ldarg (mb, 0);
8791 mono_mb_emit_icon (mb, sizeof (MonoObject));
8792 mono_mb_emit_byte (mb, CEE_ADD);
8793 for (i = 0; i < sig->param_count; ++i)
8794 mono_mb_emit_ldarg (mb, i + 1);
8795 mono_mb_emit_managed_call (mb, method, NULL);
8796 mono_mb_emit_byte (mb, CEE_RET);
8799 res = mono_mb_create_and_cache (cache, method,
8800 mb, sig, sig->param_count + 16);
8803 /* code_for (res); */
8809 STELEMREF_OBJECT, /*no check at all*/
8810 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8811 STELEMREF_CLASS, /*only the klass->parents check*/
8812 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8813 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8814 STELEMREF_KIND_COUNT
8817 static const char *strelemref_wrapper_name[] = {
8818 "object", "sealed_class", "class", "interface", "complex"
8822 is_monomorphic_array (MonoClass *klass)
8824 MonoClass *element_class;
8825 if (klass->rank != 1)
8828 element_class = klass->element_class;
8829 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8833 get_virtual_stelemref_kind (MonoClass *element_class)
8835 if (element_class == mono_defaults.object_class)
8836 return STELEMREF_OBJECT;
8837 if (is_monomorphic_array (element_class))
8838 return STELEMREF_SEALED_CLASS;
8839 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8840 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8841 #ifdef COMPRESSED_INTERFACE_BITMAP
8842 return STELEMREF_COMPLEX;
8844 return STELEMREF_INTERFACE;
8846 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8847 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8848 return STELEMREF_COMPLEX;
8849 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8850 return STELEMREF_SEALED_CLASS;
8851 return STELEMREF_CLASS;
8857 load_array_element_address (MonoMethodBuilder *mb)
8859 mono_mb_emit_ldarg (mb, 0);
8860 mono_mb_emit_ldarg (mb, 1);
8861 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8865 load_array_class (MonoMethodBuilder *mb, int aklass)
8867 mono_mb_emit_ldarg (mb, 0);
8868 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8869 mono_mb_emit_byte (mb, CEE_LDIND_I);
8870 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8871 mono_mb_emit_byte (mb, CEE_LDIND_I);
8872 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8873 mono_mb_emit_byte (mb, CEE_LDIND_I);
8874 mono_mb_emit_stloc (mb, aklass);
8878 load_value_class (MonoMethodBuilder *mb, int vklass)
8880 mono_mb_emit_ldarg (mb, 2);
8881 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8882 mono_mb_emit_byte (mb, CEE_LDIND_I);
8883 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8884 mono_mb_emit_byte (mb, CEE_LDIND_I);
8885 mono_mb_emit_stloc (mb, vklass);
8891 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8893 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8894 printf ("slow vstore of %s\n", name);
8900 * The wrapper info for the wrapper is a WrapperInfo structure.
8903 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8904 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8905 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8906 * - Add a case for arrays of arrays.
8909 get_virtual_stelemref_wrapper (int kind)
8911 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8912 static MonoMethodSignature *signature;
8913 MonoMethodBuilder *mb;
8916 const char *param_names [16];
8918 int aklass, vklass, vtable, uiid;
8919 int array_slot_addr;
8922 if (cached_methods [kind])
8923 return cached_methods [kind];
8925 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8926 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8930 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8932 /* void this::stelemref (size_t idx, void* value) */
8933 sig->ret = &mono_defaults.void_class->byval_arg;
8934 sig->hasthis = TRUE;
8935 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8936 sig->params [1] = &mono_defaults.object_class->byval_arg;
8941 param_names [0] = "index";
8942 param_names [1] = "value";
8943 mono_mb_set_param_names (mb, param_names);
8945 /*For now simply call plain old stelemref*/
8947 case STELEMREF_OBJECT:
8948 /* ldelema (implicit bound check) */
8949 load_array_element_address (mb);
8951 mono_mb_emit_ldarg (mb, 2);
8952 mono_mb_emit_byte (mb, CEE_STIND_REF);
8953 mono_mb_emit_byte (mb, CEE_RET);
8956 case STELEMREF_COMPLEX:
8958 <ldelema (bound check)>
8961 if (!mono_object_isinst (value, aklass))
8965 *array_slot_addr = value;
8968 throw new ArrayTypeMismatchException ();
8971 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8972 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8976 /*Use this to debug/record stores that are going thru the slow path*/
8977 MonoMethodSignature *csig;
8978 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8979 csig->ret = &mono_defaults.void_class->byval_arg;
8980 csig->params [0] = &mono_defaults.object_class->byval_arg;
8981 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8982 csig->params [2] = &mono_defaults.object_class->byval_arg;
8983 mono_mb_emit_ldarg (mb, 0);
8984 mono_mb_emit_ldarg (mb, 1);
8985 mono_mb_emit_ldarg (mb, 2);
8986 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
8990 /* ldelema (implicit bound check) */
8991 load_array_element_address (mb);
8992 mono_mb_emit_stloc (mb, array_slot_addr);
8994 /* if (!value) goto do_store */
8995 mono_mb_emit_ldarg (mb, 2);
8996 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8998 /* aklass = array->vtable->klass->element_class */
8999 load_array_class (mb, aklass);
9001 /*if (mono_object_isinst (value, aklass)) */
9002 mono_mb_emit_ldarg (mb, 2);
9003 mono_mb_emit_ldloc (mb, aklass);
9004 mono_mb_emit_icall (mb, mono_object_isinst);
9005 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9008 mono_mb_patch_branch (mb, b1);
9009 mono_mb_emit_ldloc (mb, array_slot_addr);
9010 mono_mb_emit_ldarg (mb, 2);
9011 mono_mb_emit_byte (mb, CEE_STIND_REF);
9012 mono_mb_emit_byte (mb, CEE_RET);
9015 mono_mb_patch_branch (mb, b2);
9017 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9020 case STELEMREF_SEALED_CLASS:
9022 <ldelema (bound check)>
9026 aklass = array->vtable->klass->element_class;
9027 vklass = value->vtable->klass;
9029 if (vklass != aklass)
9033 *array_slot_addr = value;
9036 throw new ArrayTypeMismatchException ();
9038 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9039 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9040 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9043 /* ldelema (implicit bound check) */
9044 load_array_element_address (mb);
9045 mono_mb_emit_stloc (mb, array_slot_addr);
9047 /* if (!value) goto do_store */
9048 mono_mb_emit_ldarg (mb, 2);
9049 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9051 /* aklass = array->vtable->klass->element_class */
9052 load_array_class (mb, aklass);
9054 /* vklass = value->vtable->klass */
9055 load_value_class (mb, vklass);
9057 /*if (vklass != aklass) goto do_exception; */
9058 mono_mb_emit_ldloc (mb, aklass);
9059 mono_mb_emit_ldloc (mb, vklass);
9060 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9063 mono_mb_patch_branch (mb, b1);
9064 mono_mb_emit_ldloc (mb, array_slot_addr);
9065 mono_mb_emit_ldarg (mb, 2);
9066 mono_mb_emit_byte (mb, CEE_STIND_REF);
9067 mono_mb_emit_byte (mb, CEE_RET);
9070 mono_mb_patch_branch (mb, b2);
9071 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9074 case STELEMREF_CLASS:
9077 <ldelema (bound check)>
9081 aklass = array->vtable->klass->element_class;
9082 vklass = value->vtable->klass;
9084 if (vklass->idepth < aklass->idepth)
9087 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9091 *array_slot_addr = value;
9095 throw new ArrayTypeMismatchException ();
9097 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9098 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9099 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9101 /* ldelema (implicit bound check) */
9102 load_array_element_address (mb);
9103 mono_mb_emit_stloc (mb, array_slot_addr);
9105 /* if (!value) goto do_store */
9106 mono_mb_emit_ldarg (mb, 2);
9107 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9109 /* aklass = array->vtable->klass->element_class */
9110 load_array_class (mb, aklass);
9112 /* vklass = value->vtable->klass */
9113 load_value_class (mb, vklass);
9115 /*if (mono_object_isinst (value, aklass)) */
9116 mono_mb_emit_ldarg (mb, 2);
9117 mono_mb_emit_ldloc (mb, aklass);
9118 mono_mb_emit_icall (mb, mono_object_isinst);
9119 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9121 /* if (vklass->idepth < aklass->idepth) goto failue */
9122 mono_mb_emit_ldloc (mb, vklass);
9123 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9124 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9126 mono_mb_emit_ldloc (mb, aklass);
9127 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9128 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9130 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9132 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9133 mono_mb_emit_ldloc (mb, vklass);
9134 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9135 mono_mb_emit_byte (mb, CEE_LDIND_I);
9137 mono_mb_emit_ldloc (mb, aklass);
9138 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9139 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9140 mono_mb_emit_icon (mb, 1);
9141 mono_mb_emit_byte (mb, CEE_SUB);
9142 mono_mb_emit_icon (mb, sizeof (void*));
9143 mono_mb_emit_byte (mb, CEE_MUL);
9144 mono_mb_emit_byte (mb, CEE_ADD);
9145 mono_mb_emit_byte (mb, CEE_LDIND_I);
9147 mono_mb_emit_ldloc (mb, aklass);
9148 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9151 mono_mb_patch_branch (mb, b1);
9152 mono_mb_emit_ldloc (mb, array_slot_addr);
9153 mono_mb_emit_ldarg (mb, 2);
9154 mono_mb_emit_byte (mb, CEE_STIND_REF);
9155 mono_mb_emit_byte (mb, CEE_RET);
9158 mono_mb_patch_branch (mb, b2);
9159 mono_mb_patch_branch (mb, b3);
9161 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9164 case STELEMREF_INTERFACE:
9171 klass = array->obj.vtable->klass->element_class;
9173 uiid = klass->interface_id;
9174 if (uiid > vt->max_interface_id)
9176 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9179 mono_array_setref (array, index, value);
9182 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9184 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9185 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9186 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9187 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9189 /* ldelema (implicit bound check) */
9190 load_array_element_address (mb);
9191 mono_mb_emit_stloc (mb, array_slot_addr);
9193 /* if (!value) goto do_store */
9194 mono_mb_emit_ldarg (mb, 2);
9195 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9197 /* klass = array->vtable->klass->element_class */
9198 load_array_class (mb, aklass);
9200 /* vt = value->vtable */
9201 mono_mb_emit_ldarg (mb, 2);
9202 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9203 mono_mb_emit_byte (mb, CEE_LDIND_I);
9204 mono_mb_emit_stloc (mb, vtable);
9206 /* uiid = klass->interface_id; */
9207 mono_mb_emit_ldloc (mb, aklass);
9208 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9209 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9210 mono_mb_emit_stloc (mb, uiid);
9212 /*if (uiid > vt->max_interface_id)*/
9213 mono_mb_emit_ldloc (mb, uiid);
9214 mono_mb_emit_ldloc (mb, vtable);
9215 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9216 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9217 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9219 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9221 /*vt->interface_bitmap*/
9222 mono_mb_emit_ldloc (mb, vtable);
9223 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9224 mono_mb_emit_byte (mb, CEE_LDIND_I);
9227 mono_mb_emit_ldloc (mb, uiid);
9228 mono_mb_emit_icon (mb, 3);
9229 mono_mb_emit_byte (mb, CEE_SHR_UN);
9231 /*vt->interface_bitmap [(uiid) >> 3]*/
9232 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9233 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9235 /*(1 << ((uiid)&7)))*/
9236 mono_mb_emit_icon (mb, 1);
9237 mono_mb_emit_ldloc (mb, uiid);
9238 mono_mb_emit_icon (mb, 7);
9239 mono_mb_emit_byte (mb, CEE_AND);
9240 mono_mb_emit_byte (mb, CEE_SHL);
9242 /*bitwise and the whole thing*/
9243 mono_mb_emit_byte (mb, CEE_AND);
9244 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9247 mono_mb_patch_branch (mb, b1);
9248 mono_mb_emit_ldloc (mb, array_slot_addr);
9249 mono_mb_emit_ldarg (mb, 2);
9250 mono_mb_emit_byte (mb, CEE_STIND_REF);
9251 mono_mb_emit_byte (mb, CEE_RET);
9254 mono_mb_patch_branch (mb, b2);
9255 mono_mb_patch_branch (mb, b3);
9256 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9260 mono_mb_emit_ldarg (mb, 0);
9261 mono_mb_emit_ldarg (mb, 1);
9262 mono_mb_emit_ldarg (mb, 2);
9263 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9264 mono_mb_emit_byte (mb, CEE_RET);
9267 #endif /* DISABLE_JIT */
9268 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9269 info->d.virtual_stelemref.kind = kind;
9270 res = mono_mb_create (mb, signature, 4, info);
9271 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9273 mono_marshal_lock ();
9274 if (!cached_methods [kind]) {
9275 cached_methods [kind] = res;
9276 mono_marshal_unlock ();
9278 mono_marshal_unlock ();
9279 mono_free_method (res);
9283 return cached_methods [kind];
9287 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9291 g_assert (array_class->rank == 1);
9292 kind = get_virtual_stelemref_kind (array_class->element_class);
9294 return get_virtual_stelemref_wrapper (kind);
9298 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9303 *nwrappers = STELEMREF_KIND_COUNT;
9304 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9305 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9306 res [i] = get_virtual_stelemref_wrapper (i);
9311 * The wrapper info for the wrapper is a WrapperInfo structure.
9314 mono_marshal_get_stelemref (void)
9316 static MonoMethod* ret = NULL;
9317 MonoMethodSignature *sig;
9318 MonoMethodBuilder *mb;
9321 guint32 b1, b2, b3, b4;
9324 int array_slot_addr;
9329 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9332 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9334 /* void stelemref (void* array, int idx, void* value) */
9335 sig->ret = &mono_defaults.void_class->byval_arg;
9336 sig->params [0] = &mono_defaults.object_class->byval_arg;
9337 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9338 sig->params [2] = &mono_defaults.object_class->byval_arg;
9341 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9342 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9343 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9347 <ldelema (bound check)>
9351 aklass = array->vtable->klass->element_class;
9352 vklass = value->vtable->klass;
9354 if (vklass->idepth < aklass->idepth)
9357 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9361 *array_slot_addr = value;
9365 if (mono_object_isinst (value, aklass))
9368 throw new ArrayTypeMismatchException ();
9371 /* ldelema (implicit bound check) */
9372 mono_mb_emit_ldarg (mb, 0);
9373 mono_mb_emit_ldarg (mb, 1);
9374 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9375 mono_mb_emit_stloc (mb, array_slot_addr);
9377 /* if (!value) goto do_store */
9378 mono_mb_emit_ldarg (mb, 2);
9379 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9381 /* aklass = array->vtable->klass->element_class */
9382 mono_mb_emit_ldarg (mb, 0);
9383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9384 mono_mb_emit_byte (mb, CEE_LDIND_I);
9385 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9386 mono_mb_emit_byte (mb, CEE_LDIND_I);
9387 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9388 mono_mb_emit_byte (mb, CEE_LDIND_I);
9389 mono_mb_emit_stloc (mb, aklass);
9391 /* vklass = value->vtable->klass */
9392 mono_mb_emit_ldarg (mb, 2);
9393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9394 mono_mb_emit_byte (mb, CEE_LDIND_I);
9395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9396 mono_mb_emit_byte (mb, CEE_LDIND_I);
9397 mono_mb_emit_stloc (mb, vklass);
9399 /* if (vklass->idepth < aklass->idepth) goto failue */
9400 mono_mb_emit_ldloc (mb, vklass);
9401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9402 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9404 mono_mb_emit_ldloc (mb, aklass);
9405 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9406 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9408 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9410 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9411 mono_mb_emit_ldloc (mb, vklass);
9412 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9413 mono_mb_emit_byte (mb, CEE_LDIND_I);
9415 mono_mb_emit_ldloc (mb, aklass);
9416 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9417 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9418 mono_mb_emit_icon (mb, 1);
9419 mono_mb_emit_byte (mb, CEE_SUB);
9420 mono_mb_emit_icon (mb, sizeof (void*));
9421 mono_mb_emit_byte (mb, CEE_MUL);
9422 mono_mb_emit_byte (mb, CEE_ADD);
9423 mono_mb_emit_byte (mb, CEE_LDIND_I);
9425 mono_mb_emit_ldloc (mb, aklass);
9427 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9429 copy_pos = mono_mb_get_label (mb);
9431 mono_mb_patch_branch (mb, b1);
9432 mono_mb_emit_ldloc (mb, array_slot_addr);
9433 mono_mb_emit_ldarg (mb, 2);
9434 mono_mb_emit_byte (mb, CEE_STIND_REF);
9436 mono_mb_emit_byte (mb, CEE_RET);
9439 mono_mb_patch_branch (mb, b2);
9440 mono_mb_patch_branch (mb, b3);
9442 mono_mb_emit_ldarg (mb, 2);
9443 mono_mb_emit_ldloc (mb, aklass);
9444 mono_mb_emit_icall (mb, mono_object_isinst);
9446 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9447 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9448 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9450 mono_mb_emit_byte (mb, CEE_RET);
9452 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9453 ret = mono_mb_create (mb, sig, 4, info);
9460 * mono_marshal_get_gsharedvt_in_wrapper:
9462 * This wrapper handles calls from normal code to gsharedvt code.
9464 * The wrapper info for the wrapper is a WrapperInfo structure.
9467 mono_marshal_get_gsharedvt_in_wrapper (void)
9469 static MonoMethod* ret = NULL;
9470 MonoMethodSignature *sig;
9471 MonoMethodBuilder *mb;
9477 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9479 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9480 sig->ret = &mono_defaults.void_class->byval_arg;
9484 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9486 mono_mb_emit_byte (mb, CEE_RET);
9488 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9489 ret = mono_mb_create (mb, sig, 4, info);
9496 * mono_marshal_get_gsharedvt_out_wrapper:
9498 * This wrapper handles calls from gsharedvt code to normal code.
9500 * The wrapper info for the wrapper is a WrapperInfo structure.
9503 mono_marshal_get_gsharedvt_out_wrapper (void)
9505 static MonoMethod* ret = NULL;
9506 MonoMethodSignature *sig;
9507 MonoMethodBuilder *mb;
9513 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9515 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9516 sig->ret = &mono_defaults.void_class->byval_arg;
9520 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9522 mono_mb_emit_byte (mb, CEE_RET);
9524 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9525 ret = mono_mb_create (mb, sig, 4, info);
9537 /* LOCKING: vars accessed under the marshal lock */
9538 static ArrayElemAddr *elem_addr_cache = NULL;
9539 static int elem_addr_cache_size = 0;
9540 static int elem_addr_cache_next = 0;
9543 * mono_marshal_get_array_address:
9544 * @rank: rank of the array type
9545 * @elem_size: size in bytes of an element of an array.
9547 * Returns a MonoMethod that implements the code to get the address
9548 * of an element in a multi-dimenasional array of @rank dimensions.
9549 * The returned method takes an array as the first argument and then
9550 * @rank indexes for the @rank dimensions.
9551 * If ELEM_SIZE is 0, read the array size from the array object.
9554 mono_marshal_get_array_address (int rank, int elem_size)
9557 MonoMethodBuilder *mb;
9558 MonoMethodSignature *sig;
9561 int i, bounds, ind, realidx;
9562 int branch_pos, *branch_positions;
9566 mono_marshal_lock ();
9567 for (i = 0; i < elem_addr_cache_next; ++i) {
9568 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9569 ret = elem_addr_cache [i].method;
9573 mono_marshal_unlock ();
9577 branch_positions = g_new0 (int, rank);
9579 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9581 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9582 sig->ret = &mono_defaults.int_class->byval_arg;
9583 sig->params [0] = &mono_defaults.object_class->byval_arg;
9584 for (i = 0; i < rank; ++i) {
9585 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9588 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9589 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9593 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9594 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9595 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9597 /* bounds = array->bounds; */
9598 mono_mb_emit_ldarg (mb, 0);
9599 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9600 mono_mb_emit_byte (mb, CEE_LDIND_I);
9601 mono_mb_emit_stloc (mb, bounds);
9603 /* ind is the overall element index, realidx is the partial index in a single dimension */
9604 /* ind = idx0 - bounds [0].lower_bound */
9605 mono_mb_emit_ldarg (mb, 1);
9606 mono_mb_emit_ldloc (mb, bounds);
9607 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9608 mono_mb_emit_byte (mb, CEE_ADD);
9609 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9610 mono_mb_emit_byte (mb, CEE_SUB);
9611 mono_mb_emit_stloc (mb, ind);
9612 /* if (ind >= bounds [0].length) goto exeception; */
9613 mono_mb_emit_ldloc (mb, ind);
9614 mono_mb_emit_ldloc (mb, bounds);
9615 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9616 mono_mb_emit_byte (mb, CEE_ADD);
9617 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9618 /* note that we use unsigned comparison */
9619 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9621 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9622 * We could also decide to ignore the passed elem_size and get it
9623 * from the array object, to reduce the number of methods we generate:
9624 * the additional cost is 3 memory loads and a non-immediate mul.
9626 for (i = 1; i < rank; ++i) {
9627 /* realidx = idxi - bounds [i].lower_bound */
9628 mono_mb_emit_ldarg (mb, 1 + i);
9629 mono_mb_emit_ldloc (mb, bounds);
9630 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9631 mono_mb_emit_byte (mb, CEE_ADD);
9632 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9633 mono_mb_emit_byte (mb, CEE_SUB);
9634 mono_mb_emit_stloc (mb, realidx);
9635 /* if (realidx >= bounds [i].length) goto exeception; */
9636 mono_mb_emit_ldloc (mb, realidx);
9637 mono_mb_emit_ldloc (mb, bounds);
9638 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9639 mono_mb_emit_byte (mb, CEE_ADD);
9640 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9641 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9642 /* ind = ind * bounds [i].length + realidx */
9643 mono_mb_emit_ldloc (mb, ind);
9644 mono_mb_emit_ldloc (mb, bounds);
9645 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9646 mono_mb_emit_byte (mb, CEE_ADD);
9647 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9648 mono_mb_emit_byte (mb, CEE_MUL);
9649 mono_mb_emit_ldloc (mb, realidx);
9650 mono_mb_emit_byte (mb, CEE_ADD);
9651 mono_mb_emit_stloc (mb, ind);
9654 /* return array->vector + ind * element_size */
9655 mono_mb_emit_ldarg (mb, 0);
9656 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9657 mono_mb_emit_ldloc (mb, ind);
9659 mono_mb_emit_icon (mb, elem_size);
9661 /* Load arr->vtable->klass->sizes.element_class */
9662 mono_mb_emit_ldarg (mb, 0);
9663 mono_mb_emit_byte (mb, CEE_CONV_I);
9664 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9665 mono_mb_emit_byte (mb, CEE_ADD);
9666 mono_mb_emit_byte (mb, CEE_LDIND_I);
9667 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9668 mono_mb_emit_byte (mb, CEE_ADD);
9669 mono_mb_emit_byte (mb, CEE_LDIND_I);
9670 /* sizes is an union, so this reads sizes.element_size */
9671 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9672 mono_mb_emit_byte (mb, CEE_ADD);
9673 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9675 mono_mb_emit_byte (mb, CEE_MUL);
9676 mono_mb_emit_byte (mb, CEE_ADD);
9677 mono_mb_emit_byte (mb, CEE_RET);
9679 /* patch the branches to get here and throw */
9680 for (i = 1; i < rank; ++i) {
9681 mono_mb_patch_branch (mb, branch_positions [i]);
9683 mono_mb_patch_branch (mb, branch_pos);
9684 /* throw exception */
9685 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9687 g_free (branch_positions);
9688 #endif /* DISABLE_JIT */
9690 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9691 info->d.element_addr.rank = rank;
9692 info->d.element_addr.elem_size = elem_size;
9693 ret = mono_mb_create (mb, sig, 4, info);
9696 /* cache the result */
9698 mono_marshal_lock ();
9699 for (i = 0; i < elem_addr_cache_next; ++i) {
9700 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9701 /* FIXME: free ret */
9702 ret = elem_addr_cache [i].method;
9708 if (elem_addr_cache_next >= elem_addr_cache_size) {
9709 int new_size = elem_addr_cache_size + 4;
9710 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9711 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9712 g_free (elem_addr_cache);
9713 elem_addr_cache = new_array;
9714 elem_addr_cache_size = new_size;
9716 elem_addr_cache [elem_addr_cache_next].rank = rank;
9717 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9718 elem_addr_cache [elem_addr_cache_next].method = ret;
9719 elem_addr_cache_next ++;
9721 mono_marshal_unlock ();
9726 * mono_marshal_get_array_accessor_wrapper:
9728 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9731 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9733 MonoMethodSignature *sig;
9734 MonoMethodBuilder *mb;
9738 MonoGenericContext *ctx = NULL;
9739 MonoMethod *orig_method = NULL;
9740 MonoGenericContainer *container = NULL;
9744 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9745 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9746 * FIXME: Use generic methods.
9753 g_assert_not_reached ();
9755 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9756 if ((res = mono_marshal_find_in_cache (cache, method)))
9760 sig = signature_dup (method->klass->image, mono_method_signature (method));
9763 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9766 /* Call the method */
9768 mono_mb_emit_ldarg (mb, 0);
9769 for (i = 0; i < sig->param_count; i++)
9770 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9774 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9775 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9777 mono_mb_emit_managed_call (mb, method, NULL);
9779 mono_mb_emit_byte (mb, CEE_RET);
9784 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9785 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9787 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9788 info->d.array_accessor.method = method;
9790 res = mono_mb_create_and_cache_full (cache, method,
9791 mb, sig, sig->param_count + 16,
9800 mono_marshal_alloc (gulong size)
9805 res = CoTaskMemAlloc (size);
9807 res = g_try_malloc ((gulong)size);
9809 mono_gc_out_of_memory ((gulong)size);
9815 mono_marshal_free (gpointer ptr)
9818 CoTaskMemFree (ptr);
9825 mono_marshal_free_array (gpointer *ptr, int size)
9832 for (i = 0; i < size; i++)
9838 mono_marshal_string_to_utf16 (MonoString *s)
9840 return s ? mono_string_chars (s) : NULL;
9844 mono_marshal_string_to_utf16_copy (MonoString *s)
9849 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9850 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9851 res [mono_string_length (s)] = 0;
9857 * mono_marshal_set_last_error:
9859 * This function is invoked to set the last error value from a P/Invoke call
9860 * which has SetLastError set.
9863 mono_marshal_set_last_error (void)
9866 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9868 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9873 mono_marshal_set_last_error_windows (int error)
9876 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9881 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9882 gpointer dest, gint32 length)
9887 MONO_CHECK_ARG_NULL (src);
9888 MONO_CHECK_ARG_NULL (dest);
9890 if (src->obj.vtable->klass->rank != 1)
9891 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9892 if (start_index < 0)
9893 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9895 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9896 if (start_index + length > mono_array_length (src))
9897 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9899 element_size = mono_array_element_size (src->obj.vtable->klass);
9901 /* no references should be involved */
9902 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9904 memcpy (dest, source_addr, length * element_size);
9908 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9909 MonoArray *dest, gint32 length)
9914 MONO_CHECK_ARG_NULL (src);
9915 MONO_CHECK_ARG_NULL (dest);
9917 if (dest->obj.vtable->klass->rank != 1)
9918 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9919 if (start_index < 0)
9920 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9922 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9923 if (start_index + length > mono_array_length (dest))
9924 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9926 element_size = mono_array_element_size (dest->obj.vtable->klass);
9928 /* no references should be involved */
9929 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9931 memcpy (dest_addr, src, length * element_size);
9935 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9940 return mono_string_new (mono_domain_get (), ptr);
9944 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9947 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9948 g_assert_not_reached ();
9951 return mono_string_new_len (mono_domain_get (), ptr, len);
9956 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9958 MonoDomain *domain = mono_domain_get ();
9968 return mono_string_new_utf16 (domain, ptr, len);
9972 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9974 MonoDomain *domain = mono_domain_get ();
9977 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9978 g_assert_not_reached ();
9981 return mono_string_new_utf16 (domain, ptr, len);
9986 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9988 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
9992 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9998 MONO_CHECK_ARG_NULL (rtype);
10000 type = rtype->type;
10001 klass = mono_class_from_mono_type (type);
10002 if (!mono_class_init (klass))
10003 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10005 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10007 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10008 return sizeof (gpointer);
10009 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10011 MonoException *exc;
10013 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10014 exc = mono_get_exception_argument ("t", msg);
10016 mono_raise_exception (exc);
10020 return mono_class_native_size (klass, NULL);
10024 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10026 MonoMethod *method;
10029 MONO_CHECK_ARG_NULL (obj);
10030 MONO_CHECK_ARG_NULL (dst);
10032 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10036 pa [2] = &delete_old;
10038 mono_runtime_invoke (method, NULL, pa, NULL);
10042 ptr_to_structure (gpointer src, MonoObject *dst)
10044 MonoMethod *method;
10047 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10052 mono_runtime_invoke (method, NULL, pa, NULL);
10056 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10060 MONO_CHECK_ARG_NULL (src);
10061 MONO_CHECK_ARG_NULL (dst);
10063 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10065 if (t->type == MONO_TYPE_VALUETYPE) {
10066 MonoException *exc;
10069 tmp = g_strdup_printf ("Destination is a boxed value type.");
10070 exc = mono_get_exception_argument ("dst", tmp);
10073 mono_raise_exception (exc);
10077 ptr_to_structure (src, dst);
10081 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10084 MonoDomain *domain = mono_domain_get ();
10089 MONO_CHECK_ARG_NULL (type);
10091 klass = mono_class_from_mono_type (type->type);
10092 if (!mono_class_init (klass))
10093 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10095 res = mono_object_new (domain, klass);
10097 ptr_to_structure (src, res);
10103 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10105 MonoMarshalType *info;
10108 int match_index = -1;
10110 MONO_CHECK_ARG_NULL (type);
10111 MONO_CHECK_ARG_NULL (field_name);
10113 fname = mono_string_to_utf8 (field_name);
10114 klass = mono_class_from_mono_type (type->type);
10115 if (!mono_class_init (klass))
10116 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10118 while (klass && match_index == -1) {
10119 MonoClassField* field;
10121 gpointer iter = NULL;
10122 while ((field = mono_class_get_fields (klass, &iter))) {
10123 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10125 if (!strcmp (fname, mono_field_get_name (field))) {
10132 if (match_index == -1)
10133 klass = klass->parent;
10138 if(match_index == -1) {
10139 MonoException* exc;
10142 /* Get back original class instance */
10143 klass = mono_class_from_mono_type (type->type);
10145 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10146 exc = mono_get_exception_argument ("fieldName", tmp);
10149 mono_raise_exception ((MonoException*)exc);
10152 info = mono_marshal_load_type_info (klass);
10153 return info->fields [match_index].offset;
10157 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10162 tres = mono_string_to_utf8 (string);
10166 len = strlen (tres) + 1;
10167 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10168 memcpy (ret, tres, len);
10173 return mono_string_to_utf8 (string);
10178 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10180 if (string == NULL)
10183 #ifdef TARGET_WIN32
10184 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10185 ((mono_string_length (string) + 1) * 2);
10187 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10189 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10190 res [mono_string_length (string)] = 0;
10196 mono_struct_delete_old (MonoClass *klass, char *ptr)
10198 MonoMarshalType *info;
10201 info = mono_marshal_load_type_info (klass);
10203 for (i = 0; i < info->num_fields; i++) {
10204 MonoMarshalNative ntype;
10205 MonoMarshalConv conv;
10206 MonoType *ftype = info->fields [i].field->type;
10209 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10212 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10213 klass->unicode, &conv);
10215 cpos = ptr + info->fields [i].offset;
10218 case MONO_MARSHAL_CONV_NONE:
10219 if (MONO_TYPE_ISSTRUCT (ftype)) {
10220 mono_struct_delete_old (ftype->data.klass, cpos);
10224 case MONO_MARSHAL_CONV_STR_LPWSTR:
10225 /* We assume this field points inside a MonoString */
10227 case MONO_MARSHAL_CONV_STR_LPTSTR:
10228 #ifdef TARGET_WIN32
10229 /* We assume this field points inside a MonoString
10233 case MONO_MARSHAL_CONV_STR_LPSTR:
10234 case MONO_MARSHAL_CONV_STR_BSTR:
10235 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10236 case MONO_MARSHAL_CONV_STR_TBSTR:
10237 mono_marshal_free (*(gpointer *)cpos);
10247 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10251 MONO_CHECK_ARG_NULL (src);
10252 MONO_CHECK_ARG_NULL (type);
10254 klass = mono_class_from_mono_type (type->type);
10255 if (!mono_class_init (klass))
10256 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10258 mono_struct_delete_old (klass, (char *)src);
10262 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10266 if ((gulong)size == 0)
10267 /* This returns a valid pointer for size 0 on MS.NET */
10271 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10273 res = g_try_malloc ((gulong)size);
10276 mono_gc_out_of_memory ((gulong)size);
10282 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10287 mono_gc_out_of_memory ((gulong)size);
10292 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10294 res = g_try_realloc (ptr, (gulong)size);
10297 mono_gc_out_of_memory ((gulong)size);
10303 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10313 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10316 return CoTaskMemAlloc (size);
10318 return g_try_malloc ((gulong)size);
10323 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10326 CoTaskMemFree (ptr);
10333 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10336 return CoTaskMemRealloc (ptr, size);
10338 return g_try_realloc (ptr, (gulong)size);
10343 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10345 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10349 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10351 MonoClass *klass = mono_type_get_class (type->type);
10352 if (!mono_class_init (klass))
10353 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10355 return mono_ftnptr_to_delegate (klass, ftn);
10359 * mono_marshal_is_loading_type_info:
10361 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10365 mono_marshal_is_loading_type_info (MonoClass *klass)
10367 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10369 return g_slist_find (loads_list, klass) != NULL;
10373 * mono_marshal_load_type_info:
10375 * Initialize klass->marshal_info using information from metadata. This function can
10376 * recursively call itself, and the caller is responsible to avoid that by calling
10377 * mono_marshal_is_loading_type_info () beforehand.
10379 * LOCKING: Acquires the loader lock.
10382 mono_marshal_load_type_info (MonoClass* klass)
10385 guint32 native_size = 0, min_align = 1, packing;
10386 MonoMarshalType *info;
10387 MonoClassField* field;
10390 GSList *loads_list;
10392 g_assert (klass != NULL);
10394 if (klass->marshal_info)
10395 return klass->marshal_info;
10397 if (!klass->inited)
10398 mono_class_init (klass);
10400 if (klass->marshal_info)
10401 return klass->marshal_info;
10404 * This function can recursively call itself, so we keep the list of classes which are
10405 * under initialization in a TLS list.
10407 g_assert (!mono_marshal_is_loading_type_info (klass));
10408 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10409 loads_list = g_slist_prepend (loads_list, klass);
10410 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10413 while ((field = mono_class_get_fields (klass, &iter))) {
10414 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10416 if (mono_field_is_deleted (field))
10421 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10423 /* The mempool is protected by the loader lock */
10424 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10425 info->num_fields = count;
10427 /* Try to find a size for this type in metadata */
10428 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10430 if (klass->parent) {
10431 int parent_size = mono_class_native_size (klass->parent, NULL);
10433 /* Add parent size to real size */
10434 native_size += parent_size;
10435 info->native_size = parent_size;
10438 packing = klass->packing_size ? klass->packing_size : 8;
10441 while ((field = mono_class_get_fields (klass, &iter))) {
10445 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10448 if (mono_field_is_deleted (field))
10450 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10451 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10452 NULL, NULL, &info->fields [j].mspec);
10454 info->fields [j].field = field;
10456 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10457 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10458 /* This field is a hack inserted by MCS to empty structures */
10463 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10464 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10465 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10466 &align, TRUE, klass->unicode);
10467 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10468 min_align = MAX (align, min_align);
10469 info->fields [j].offset = info->native_size;
10470 info->fields [j].offset += align - 1;
10471 info->fields [j].offset &= ~(align - 1);
10472 info->native_size = info->fields [j].offset + size;
10474 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10475 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10476 &align, TRUE, klass->unicode);
10477 min_align = MAX (align, min_align);
10478 info->fields [j].offset = field->offset - sizeof (MonoObject);
10479 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10485 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10486 info->native_size = MAX (native_size, info->native_size);
10488 * If the provided Size is equal or larger than the calculated size, and there
10489 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10491 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10492 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10495 min_align = MIN (min_align, packing);
10499 if (info->native_size & (min_align - 1)) {
10500 info->native_size += min_align - 1;
10501 info->native_size &= ~(min_align - 1);
10504 info->min_align = min_align;
10506 /* Update the class's blittable info, if the layouts don't match */
10507 if (info->native_size != mono_class_value_size (klass, NULL))
10508 klass->blittable = FALSE;
10510 /* If this is an array type, ensure that we have element info */
10511 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10512 mono_marshal_load_type_info (klass->element_class);
10515 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10516 loads_list = g_slist_remove (loads_list, klass);
10517 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10519 mono_marshal_lock ();
10520 if (!klass->marshal_info) {
10521 /*We do double-checking locking on marshal_info */
10522 mono_memory_barrier ();
10523 klass->marshal_info = info;
10525 mono_marshal_unlock ();
10527 return klass->marshal_info;
10531 * mono_class_native_size:
10534 * Returns: the native size of an object instance (when marshaled
10535 * to unmanaged code)
10538 mono_class_native_size (MonoClass *klass, guint32 *align)
10540 if (!klass->marshal_info) {
10541 if (mono_marshal_is_loading_type_info (klass)) {
10546 mono_marshal_load_type_info (klass);
10551 *align = klass->marshal_info->min_align;
10553 return klass->marshal_info->native_size;
10557 * mono_type_native_stack_size:
10558 * @t: the type to return the size it uses on the stack
10560 * Returns: the number of bytes required to hold an instance of this
10561 * type on the native stack
10564 mono_type_native_stack_size (MonoType *t, guint32 *align)
10568 g_assert (t != NULL);
10574 *align = sizeof (gpointer);
10575 return sizeof (gpointer);
10579 case MONO_TYPE_BOOLEAN:
10580 case MONO_TYPE_CHAR:
10591 case MONO_TYPE_STRING:
10592 case MONO_TYPE_OBJECT:
10593 case MONO_TYPE_CLASS:
10594 case MONO_TYPE_SZARRAY:
10595 case MONO_TYPE_PTR:
10596 case MONO_TYPE_FNPTR:
10597 case MONO_TYPE_ARRAY:
10598 *align = sizeof (gpointer);
10599 return sizeof (gpointer);
10604 *align = MONO_ABI_ALIGNOF (double);
10608 *align = MONO_ABI_ALIGNOF (gint64);
10610 case MONO_TYPE_GENERICINST:
10611 if (!mono_type_generic_inst_is_valuetype (t)) {
10612 *align = sizeof (gpointer);
10613 return sizeof (gpointer);
10616 case MONO_TYPE_TYPEDBYREF:
10617 case MONO_TYPE_VALUETYPE: {
10619 MonoClass *klass = mono_class_from_mono_type (t);
10621 if (klass->enumtype)
10622 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10624 size = mono_class_native_size (klass, align);
10625 *align = *align + 3;
10635 g_error ("type 0x%02x unknown", t->type);
10641 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10642 gboolean as_field, gboolean unicode)
10644 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10647 switch (native_type) {
10648 case MONO_NATIVE_BOOLEAN:
10651 case MONO_NATIVE_I1:
10652 case MONO_NATIVE_U1:
10655 case MONO_NATIVE_I2:
10656 case MONO_NATIVE_U2:
10657 case MONO_NATIVE_VARIANTBOOL:
10660 case MONO_NATIVE_I4:
10661 case MONO_NATIVE_U4:
10662 case MONO_NATIVE_ERROR:
10665 case MONO_NATIVE_I8:
10666 case MONO_NATIVE_U8:
10667 *align = MONO_ABI_ALIGNOF (gint64);
10669 case MONO_NATIVE_R4:
10672 case MONO_NATIVE_R8:
10673 *align = MONO_ABI_ALIGNOF (double);
10675 case MONO_NATIVE_INT:
10676 case MONO_NATIVE_UINT:
10677 case MONO_NATIVE_LPSTR:
10678 case MONO_NATIVE_LPWSTR:
10679 case MONO_NATIVE_LPTSTR:
10680 case MONO_NATIVE_BSTR:
10681 case MONO_NATIVE_ANSIBSTR:
10682 case MONO_NATIVE_TBSTR:
10683 case MONO_NATIVE_LPARRAY:
10684 case MONO_NATIVE_SAFEARRAY:
10685 case MONO_NATIVE_IUNKNOWN:
10686 case MONO_NATIVE_IDISPATCH:
10687 case MONO_NATIVE_INTERFACE:
10688 case MONO_NATIVE_ASANY:
10689 case MONO_NATIVE_FUNC:
10690 case MONO_NATIVE_LPSTRUCT:
10691 *align = MONO_ABI_ALIGNOF (gpointer);
10692 return sizeof (gpointer);
10693 case MONO_NATIVE_STRUCT:
10694 klass = mono_class_from_mono_type (type);
10695 if (klass == mono_defaults.object_class &&
10696 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10700 return mono_class_native_size (klass, align);
10701 case MONO_NATIVE_BYVALTSTR: {
10702 int esize = unicode ? 2: 1;
10705 return mspec->data.array_data.num_elem * esize;
10707 case MONO_NATIVE_BYVALARRAY: {
10708 // FIXME: Have to consider ArraySubType
10710 klass = mono_class_from_mono_type (type);
10711 if (klass->element_class == mono_defaults.char_class) {
10712 esize = unicode ? 2 : 1;
10715 esize = mono_class_native_size (klass->element_class, align);
10718 return mspec->data.array_data.num_elem * esize;
10720 case MONO_NATIVE_CUSTOM:
10721 *align = sizeof (gpointer);
10722 return sizeof (gpointer);
10724 case MONO_NATIVE_CURRENCY:
10725 case MONO_NATIVE_VBBYREFSTR:
10727 g_error ("native type %02x not implemented", native_type);
10730 g_assert_not_reached ();
10735 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10743 t = &o->vtable->klass->byval_arg;
10747 case MONO_TYPE_PTR:
10750 case MONO_TYPE_BOOLEAN:
10753 case MONO_TYPE_CHAR:
10758 return mono_object_unbox (o);
10760 case MONO_TYPE_STRING:
10761 switch (string_encoding) {
10762 case MONO_NATIVE_LPWSTR:
10763 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10765 case MONO_NATIVE_LPSTR:
10766 return mono_string_to_lpstr ((MonoString*)o);
10769 g_warning ("marshaling conversion %d not implemented", string_encoding);
10770 g_assert_not_reached ();
10773 case MONO_TYPE_CLASS:
10774 case MONO_TYPE_VALUETYPE: {
10775 MonoMethod *method;
10778 MonoBoolean delete_old = FALSE;
10780 klass = t->data.klass;
10782 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10785 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10786 klass->blittable || klass->enumtype))
10787 return mono_object_unbox (o);
10789 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10791 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10792 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10796 pa [2] = &delete_old;
10798 mono_runtime_invoke (method, NULL, pa, NULL);
10805 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10811 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10819 t = &o->vtable->klass->byval_arg;
10821 case MONO_TYPE_STRING:
10822 switch (string_encoding) {
10823 case MONO_NATIVE_LPWSTR:
10824 case MONO_NATIVE_LPSTR:
10825 mono_marshal_free (ptr);
10828 g_warning ("marshaling conversion %d not implemented", string_encoding);
10829 g_assert_not_reached ();
10832 case MONO_TYPE_CLASS:
10833 case MONO_TYPE_VALUETYPE: {
10834 klass = t->data.klass;
10836 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10837 klass->blittable || klass->enumtype))
10840 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10841 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10847 mono_runtime_invoke (method, NULL, pa, NULL);
10850 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10851 mono_struct_delete_old (klass, ptr);
10854 mono_marshal_free (ptr);
10863 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10865 MonoMethodSignature *sig, *csig;
10866 MonoMethodBuilder *mb;
10871 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10872 mb->method->slot = -1;
10874 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10875 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10877 sig = mono_method_signature (method);
10878 csig = signature_dup (method->klass->image, sig);
10879 csig->generic_param_count = 0;
10881 #ifndef DISABLE_JIT
10882 mono_mb_emit_ldarg (mb, 0);
10883 for (i = 0; i < csig->param_count; i++)
10884 mono_mb_emit_ldarg (mb, i + 1);
10885 mono_mb_emit_managed_call (mb, method, NULL);
10886 mono_mb_emit_byte (mb, CEE_RET);
10888 /* We can corlib internal methods */
10889 mb->skip_visibility = TRUE;
10891 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10892 info->d.generic_array_helper.method = method;
10893 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10901 * The mono_win32_compat_* functions are implementations of inline
10902 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10903 * although not exported by kernel32.
10905 * We map the appropiate kernel32 entries to these functions using
10906 * dllmaps declared in the global etc/mono/config.
10910 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10912 if (!dest || !source)
10915 memcpy (dest, source, length);
10919 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10921 memset (dest, fill, length);
10925 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10927 if (!dest || !source)
10930 memmove (dest, source, length);
10934 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10936 memset (dest, 0, length);
10940 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10945 for (i = 0; i < len; ++i)
10949 g_assert (i < len);
10952 while (byte && !(byte & 1))
10954 g_assert (byte == 1);
10957 *bitmask = buf [i];
10961 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10963 MonoMethodBuilder *mb;
10964 MonoMethodSignature *sig, *csig;
10965 MonoExceptionClause *clause;
10970 int i, param_count, sig_size, pos_leave;
10974 klass = method->klass;
10975 image = method->klass->image;
10976 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10978 if ((res = mono_marshal_find_in_cache (cache, method)))
10981 sig = mono_method_signature (method);
10982 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10984 /* add "this" and exception param */
10985 param_count = sig->param_count + sig->hasthis + 1;
10987 /* dup & extend signature */
10988 csig = mono_metadata_signature_alloc (image, param_count);
10989 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10990 memcpy (csig, sig, sig_size);
10991 csig->param_count = param_count;
10994 csig->call_convention = MONO_CALL_DEFAULT;
10996 if (sig->hasthis) {
10998 csig->params [0] = &klass->byval_arg;
10999 /* move params up by one */
11000 for (i = 0; i < sig->param_count; i++)
11001 csig->params [i + 1] = sig->params [i];
11004 /* setup exception param as byref+[out] */
11005 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11006 &mono_defaults.exception_class->byval_arg);
11007 csig->params [param_count - 1]->byref = 1;
11008 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11010 /* convert struct return to object */
11011 if (MONO_TYPE_ISSTRUCT (sig->ret))
11012 csig->ret = &mono_defaults.object_class->byval_arg;
11014 #ifndef DISABLE_JIT
11015 /* local 0 (temp for exception object) */
11016 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11018 /* local 1 (temp for result) */
11019 if (!MONO_TYPE_IS_VOID (sig->ret))
11020 mono_mb_add_local (mb, sig->ret);
11022 /* clear exception arg */
11023 mono_mb_emit_ldarg (mb, param_count - 1);
11024 mono_mb_emit_byte (mb, CEE_LDNULL);
11025 mono_mb_emit_byte (mb, CEE_STIND_REF);
11028 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11029 clause->try_offset = mono_mb_get_label (mb);
11031 /* push method's args */
11032 for (i = 0; i < param_count - 1; i++) {
11036 mono_mb_emit_ldarg (mb, i);
11038 /* get the byval type of the param */
11039 klass = mono_class_from_mono_type (csig->params [i]);
11040 type = &klass->byval_arg;
11042 /* unbox struct args */
11043 if (MONO_TYPE_ISSTRUCT (type)) {
11044 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11046 /* byref args & and the "this" arg must remain a ptr.
11047 Otherwise make a copy of the value type */
11048 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11049 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11051 csig->params [i] = &mono_defaults.object_class->byval_arg;
11056 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11057 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11059 mono_mb_emit_op (mb, CEE_CALL, method);
11061 /* save result at local 1 */
11062 if (!MONO_TYPE_IS_VOID (sig->ret))
11063 mono_mb_emit_stloc (mb, 1);
11065 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11068 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11069 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11070 clause->data.catch_class = mono_defaults.object_class;
11072 clause->handler_offset = mono_mb_get_label (mb);
11074 /* store exception at local 0 */
11075 mono_mb_emit_stloc (mb, 0);
11076 mono_mb_emit_ldarg (mb, param_count - 1);
11077 mono_mb_emit_ldloc (mb, 0);
11078 mono_mb_emit_byte (mb, CEE_STIND_REF);
11079 mono_mb_emit_branch (mb, CEE_LEAVE);
11081 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11083 mono_mb_set_clauses (mb, 1, clause);
11085 mono_mb_patch_branch (mb, pos_leave);
11088 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11089 mono_mb_emit_ldloc (mb, 1);
11091 /* box the return value */
11092 if (MONO_TYPE_ISSTRUCT (sig->ret))
11093 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11096 mono_mb_emit_byte (mb, CEE_RET);
11099 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11106 * mono_marshal_free_dynamic_wrappers:
11108 * Free wrappers of the dynamic method METHOD.
11111 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11113 MonoImage *image = method->klass->image;
11115 g_assert (method_is_dynamic (method));
11117 /* This could be called during shutdown */
11118 if (marshal_mutex_initialized)
11119 mono_marshal_lock ();
11121 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11122 * they could be shared with other methods ?
11124 if (image->runtime_invoke_direct_cache)
11125 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11126 if (image->delegate_abstract_invoke_cache)
11127 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11128 // FIXME: Need to clear the caches in other images as well
11129 if (image->delegate_bound_static_invoke_cache)
11130 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11132 if (marshal_mutex_initialized)
11133 mono_marshal_unlock ();
11137 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11139 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11140 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11142 return mono_metadata_signature_equal (pair->sig, sig);
11146 * mono_marshal_free_inflated_wrappers:
11148 * Free wrappers of the inflated method METHOD.
11151 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11153 MonoMethodSignature *sig = method->signature;
11155 g_assert (method->is_inflated);
11157 /* Ignore calls occuring late during cleanup. */
11158 if (!marshal_mutex_initialized)
11161 mono_marshal_lock ();
11163 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11164 * they could be shared with other methods ?
11168 * indexed by MonoMethodSignature
11170 /* FIXME: This could remove unrelated wrappers as well */
11171 if (sig && method->klass->image->delegate_begin_invoke_cache)
11172 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11173 if (sig && method->klass->image->delegate_end_invoke_cache)
11174 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11175 if (sig && method->klass->image->delegate_invoke_cache)
11176 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11177 if (sig && method->klass->image->runtime_invoke_cache)
11178 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11179 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11180 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11183 * indexed by SignaturePointerPair
11185 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11186 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11187 signature_pointer_pair_matches_signature, (gpointer)sig);
11190 * indexed by MonoMethod pointers
11192 if (method->klass->image->runtime_invoke_direct_cache)
11193 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11194 if (method->klass->image->managed_wrapper_cache)
11195 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11196 if (method->klass->image->native_wrapper_cache)
11197 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11198 if (method->klass->image->remoting_invoke_cache)
11199 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11200 if (method->klass->image->synchronized_cache)
11201 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11202 if (method->klass->image->unbox_wrapper_cache)
11203 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11204 if (method->klass->image->cominterop_invoke_cache)
11205 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11206 if (method->klass->image->cominterop_wrapper_cache)
11207 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11208 if (method->klass->image->thunk_invoke_cache)
11209 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11210 if (method->klass->image->native_func_wrapper_aot_cache)
11211 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11213 mono_marshal_unlock ();