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)
2013 int pos_noabort, pos_noex;
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);
2023 /* Throw the exception returned by the checkpoint function, if any */
2024 mono_mb_emit_byte (mb, CEE_DUP);
2025 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2026 mono_mb_emit_byte (mb, CEE_THROW);
2027 mono_mb_patch_branch (mb, pos_noex);
2028 mono_mb_emit_byte (mb, CEE_POP);
2030 mono_mb_patch_branch (mb, pos_noabort);
2034 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2036 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2039 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2043 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2045 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2049 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2051 emit_thread_interrupt_checkpoint (mb);
2055 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2057 emit_thread_force_interrupt_checkpoint (mb);
2060 #endif /* DISABLE_JIT */
2062 static MonoAsyncResult *
2063 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2065 MonoMethodMessage *msg;
2066 MonoDelegate *async_callback;
2067 MonoMulticastDelegate *mcast_delegate;
2071 MonoMethod *method = NULL, *method2 = NULL;
2073 g_assert (delegate);
2074 mcast_delegate = (MonoMulticastDelegate *) delegate;
2075 if (mcast_delegate->prev != NULL)
2076 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2078 #ifndef DISABLE_REMOTING
2079 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2081 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2082 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2084 /* If the target is a proxy, make a direct call. Is proxy's work
2085 // to make the call asynchronous.
2087 MonoAsyncResult *ares;
2089 MonoArray *out_args;
2090 method = delegate->method;
2092 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2093 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2094 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2095 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2096 MONO_OBJECT_SETREF (msg, async_result, ares);
2097 msg->call_type = CallType_BeginInvoke;
2100 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2102 mono_raise_exception ((MonoException *) exc);
2108 klass = delegate->object.vtable->klass;
2110 method = mono_get_delegate_invoke (klass);
2111 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2114 g_assert (method != NULL);
2116 im = mono_get_delegate_invoke (method->klass);
2117 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2119 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2125 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2127 int i, params_var, tmp_var;
2129 /* allocate local (pointer) *params[] */
2130 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2131 /* allocate local (pointer) tmp */
2132 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2134 /* alloate space on stack to store an array of pointers to the arguments */
2135 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2136 mono_mb_emit_byte (mb, CEE_PREFIX1);
2137 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2138 mono_mb_emit_stloc (mb, params_var);
2141 mono_mb_emit_ldloc (mb, params_var);
2142 mono_mb_emit_stloc (mb, tmp_var);
2144 if (save_this && sig->hasthis) {
2145 mono_mb_emit_ldloc (mb, tmp_var);
2146 mono_mb_emit_ldarg_addr (mb, 0);
2147 mono_mb_emit_byte (mb, CEE_STIND_I);
2148 /* tmp = tmp + sizeof (gpointer) */
2149 if (sig->param_count)
2150 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2154 for (i = 0; i < sig->param_count; i++) {
2155 mono_mb_emit_ldloc (mb, tmp_var);
2156 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2157 mono_mb_emit_byte (mb, CEE_STIND_I);
2158 /* tmp = tmp + sizeof (gpointer) */
2159 if (i < (sig->param_count - 1))
2160 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2166 #endif /* DISABLE_JIT */
2169 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2173 GString *res = g_string_new ("");
2176 g_string_append (res, prefix);
2177 g_string_append_c (res, '_');
2180 mono_type_get_desc (res, sig->ret, FALSE);
2183 g_string_append (res, "__this__");
2185 for (i = 0; i < sig->param_count; ++i) {
2186 g_string_append_c (res, '_');
2187 mono_type_get_desc (res, sig->params [i], FALSE);
2190 g_string_free (res, FALSE);
2195 * mono_marshal_get_string_encoding:
2197 * Return the string encoding which should be used for a given parameter.
2199 static MonoMarshalNative
2200 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2202 /* First try the parameter marshal info */
2204 if (spec->native == MONO_NATIVE_LPARRAY) {
2205 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2206 return spec->data.array_data.elem_type;
2209 return spec->native;
2213 return MONO_NATIVE_LPSTR;
2215 /* Then try the method level marshal info */
2216 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2217 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2218 return MONO_NATIVE_LPSTR;
2219 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2220 return MONO_NATIVE_LPWSTR;
2221 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2223 return MONO_NATIVE_LPWSTR;
2225 return MONO_NATIVE_LPSTR;
2228 return MONO_NATIVE_LPSTR;
2232 static MonoMarshalConv
2233 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2235 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2238 case MONO_NATIVE_LPWSTR:
2239 return MONO_MARSHAL_CONV_STR_LPWSTR;
2240 case MONO_NATIVE_LPSTR:
2241 case MONO_NATIVE_VBBYREFSTR:
2242 return MONO_MARSHAL_CONV_STR_LPSTR;
2243 case MONO_NATIVE_LPTSTR:
2244 return MONO_MARSHAL_CONV_STR_LPTSTR;
2245 case MONO_NATIVE_BSTR:
2246 return MONO_MARSHAL_CONV_STR_BSTR;
2252 static MonoMarshalConv
2253 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2255 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2258 case MONO_NATIVE_LPWSTR:
2259 return MONO_MARSHAL_CONV_SB_LPWSTR;
2261 case MONO_NATIVE_LPSTR:
2262 return MONO_MARSHAL_CONV_SB_LPSTR;
2264 case MONO_NATIVE_LPTSTR:
2265 return MONO_MARSHAL_CONV_SB_LPTSTR;
2272 static MonoMarshalConv
2273 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2275 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2280 case MONO_NATIVE_LPWSTR:
2282 return MONO_MARSHAL_CONV_LPWSTR_STR;
2283 case MONO_NATIVE_LPSTR:
2284 case MONO_NATIVE_VBBYREFSTR:
2285 return MONO_MARSHAL_CONV_LPSTR_STR;
2286 case MONO_NATIVE_LPTSTR:
2287 return MONO_MARSHAL_CONV_LPTSTR_STR;
2288 case MONO_NATIVE_BSTR:
2289 return MONO_MARSHAL_CONV_BSTR_STR;
2295 static MonoMarshalConv
2296 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2298 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2303 case MONO_NATIVE_LPWSTR:
2305 * mono_string_builder_to_utf16 does not allocate a
2306 * new buffer, so no need to free it.
2309 return MONO_MARSHAL_CONV_LPWSTR_SB;
2310 case MONO_NATIVE_LPSTR:
2311 return MONO_MARSHAL_CONV_LPSTR_SB;
2313 case MONO_NATIVE_LPTSTR:
2314 return MONO_MARSHAL_CONV_LPTSTR_SB;
2322 * Return whenever a field of a native structure or an array member needs to
2326 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2328 MonoMarshalNative encoding;
2329 MonoMarshalConv conv;
2332 case MONO_TYPE_VALUETYPE:
2333 /* FIXME: Optimize this */
2335 case MONO_TYPE_OBJECT:
2336 case MONO_TYPE_CLASS:
2337 if (t->data.klass == mono_defaults.stringbuilder_class) {
2339 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2343 case MONO_TYPE_STRING:
2344 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2345 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2352 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2355 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2358 mono_marshal_lock ();
2361 g_hash_table_new (hash_func, equal_func);
2362 mono_memory_barrier ();
2365 mono_marshal_unlock ();
2371 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2373 return get_cache (var, hash_func, equal_func);
2377 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2381 mono_marshal_lock ();
2382 res = g_hash_table_lookup (cache, key);
2383 mono_marshal_unlock ();
2390 * Create a MonoMethod from MB, set INFO as wrapper info.
2393 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2394 int max_stack, WrapperInfo *info)
2398 res = mono_mb_create_method (mb, sig, max_stack);
2400 mono_marshal_set_wrapper_info (res, info);
2404 /* Create the method from the builder and place it in the cache */
2406 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2407 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2408 int max_stack, WrapperInfo *info, gboolean *out_found)
2415 mono_marshal_lock ();
2416 res = g_hash_table_lookup (cache, key);
2417 mono_marshal_unlock ();
2420 newm = mono_mb_create_method (mb, sig, max_stack);
2421 mono_marshal_lock ();
2422 res = g_hash_table_lookup (cache, key);
2425 g_hash_table_insert (cache, key, res);
2427 mono_marshal_set_wrapper_info (res, info);
2429 mono_marshal_set_wrapper_info (res, key);
2430 mono_marshal_unlock ();
2434 mono_marshal_unlock ();
2435 mono_free_method (newm);
2443 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2444 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2447 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2451 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2454 int wrapper_type = wrapper->wrapper_type;
2457 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2460 switch (wrapper_type) {
2461 case MONO_WRAPPER_REMOTING_INVOKE:
2462 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2463 case MONO_WRAPPER_XDOMAIN_INVOKE:
2464 case MONO_WRAPPER_SYNCHRONIZED:
2465 case MONO_WRAPPER_UNBOX:
2466 res = mono_marshal_get_wrapper_info (wrapper);
2469 if (wrapper->is_inflated) {
2473 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2474 * contains an uninflated method.
2476 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2477 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2481 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2482 info = mono_marshal_get_wrapper_info (wrapper);
2483 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2484 return info->d.managed_to_native.method;
2487 case MONO_WRAPPER_RUNTIME_INVOKE:
2488 info = mono_marshal_get_wrapper_info (wrapper);
2489 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2490 return info->d.runtime_invoke.method;
2499 * mono_marshal_get_wrapper_info:
2501 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2502 * returned depends on the wrapper type. It is usually a method, a class, or a
2503 * WrapperInfo structure.
2506 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2508 g_assert (wrapper->wrapper_type);
2510 return mono_method_get_wrapper_data (wrapper, 1);
2514 * mono_marshal_set_wrapper_info:
2516 * Store an arbitrary pointer inside the wrapper which is retrievable by
2517 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2518 * wrapper (method->wrapper_type).
2521 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2525 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2528 datav = ((MonoMethodWrapper *)method)->method_data;
2533 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2537 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2538 info->subtype = subtype;
2543 * get_wrapper_target_class:
2545 * Return the class where a wrapper method should be placed.
2548 get_wrapper_target_class (MonoImage *image)
2555 * - can't put all wrappers into an mscorlib class, because they reference
2556 * metadata (signature) so they should be put into the same image as the
2557 * method they wrap, so they are unloaded together.
2558 * - putting them into a class with a type initalizer could cause the
2559 * initializer to be executed which can be a problem if the wrappers are
2561 * - putting them into an inflated class can cause problems if the the
2562 * class is deleted because it references an image which is unloaded.
2563 * To avoid these problems, we put the wrappers into the <Module> class of
2566 if (image_is_dynamic (image)) {
2567 klass = ((MonoDynamicImage*)image)->wrappers_type;
2569 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2570 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2578 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2579 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2583 * check_generic_wrapper_cache:
2585 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2586 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2587 * generic method definition.
2590 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2593 MonoMethod *inst, *def;
2594 MonoGenericContext *ctx;
2595 MonoMethod *def_method;
2597 g_assert (orig_method->is_inflated);
2598 def_method = ((MonoMethodInflated*)orig_method)->declaring;
2599 ctx = mono_method_get_context (orig_method);
2602 * Look for the instance
2604 res = mono_marshal_find_in_cache (cache, key);
2609 * Look for the definition
2611 def = mono_marshal_find_in_cache (cache, def_key);
2614 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2615 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2617 mono_memory_barrier ();
2618 mono_marshal_lock ();
2619 res = g_hash_table_lookup (cache, key);
2621 g_hash_table_insert (cache, key, inst);
2624 mono_marshal_unlock ();
2631 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2634 MonoMethod *inst, *res;
2637 * We use the same cache for the generic definition and the instances.
2639 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2640 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2641 mono_memory_barrier ();
2642 mono_marshal_lock ();
2643 res = g_hash_table_lookup (cache, key);
2645 g_hash_table_insert (cache, key, inst);
2648 mono_marshal_unlock ();
2653 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2657 MonoMethod *inst, *def;
2660 * Look for the instance
2662 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2667 * Look for the definition
2669 def = mono_marshal_find_in_cache (cache, def_method->klass);
2671 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2672 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2675 mono_memory_barrier ();
2676 mono_marshal_lock ();
2677 res = g_hash_table_lookup (cache, orig_method->klass);
2679 g_hash_table_insert (cache, orig_method->klass, inst);
2682 mono_marshal_unlock ();
2689 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2692 MonoMethod *inst, *res;
2695 * We use the same cache for the generic definition and the instances.
2697 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2698 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2700 mono_memory_barrier ();
2701 mono_marshal_lock ();
2702 res = g_hash_table_lookup (cache, orig_method->klass);
2704 g_hash_table_insert (cache, orig_method->klass, inst);
2707 mono_marshal_unlock ();
2712 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2714 MonoMethodSignature *sig;
2715 MonoMethodBuilder *mb;
2720 MonoGenericContext *ctx = NULL;
2721 MonoMethod *orig_method = NULL;
2723 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2724 !strcmp (method->name, "BeginInvoke"));
2727 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2729 if (method->is_inflated) {
2730 orig_method = method;
2731 ctx = &((MonoMethodInflated*)method)->context;
2732 method = ((MonoMethodInflated*)method)->declaring;
2735 sig = mono_signature_no_pinvoke (method);
2741 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2742 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2746 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2747 (GHashFunc)mono_signature_hash,
2748 (GCompareFunc)mono_metadata_signature_equal);
2749 if ((res = mono_marshal_find_in_cache (cache, sig)))
2753 g_assert (sig->hasthis);
2755 name = mono_signature_to_name (sig, "begin_invoke");
2757 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2759 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2763 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2765 mono_mb_emit_ldarg (mb, 0);
2766 mono_mb_emit_ldloc (mb, params_var);
2767 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2768 mono_mb_emit_byte (mb, CEE_RET);
2773 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2774 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2776 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2784 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2786 MonoDomain *domain = mono_domain_get ();
2787 MonoAsyncResult *ares;
2788 MonoMethod *method = NULL;
2789 MonoMethodSignature *sig;
2790 MonoMethodMessage *msg;
2791 MonoObject *res, *exc;
2792 MonoArray *out_args;
2795 g_assert (delegate);
2797 if (!delegate->method_info) {
2798 g_assert (delegate->method);
2799 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2802 if (!delegate->method_info || !delegate->method_info->method)
2803 g_assert_not_reached ();
2805 klass = delegate->object.vtable->klass;
2807 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2808 g_assert (method != NULL);
2810 sig = mono_signature_no_pinvoke (method);
2812 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2814 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2816 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."));
2820 if (ares->async_delegate != (MonoObject*)delegate) {
2821 mono_raise_exception (mono_get_exception_invalid_operation (
2822 "The IAsyncResult object provided does not match this delegate."));
2826 #ifndef DISABLE_REMOTING
2827 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2828 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2829 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2830 mono_message_init (domain, msg, delegate->method_info, NULL);
2831 msg->call_type = CallType_EndInvoke;
2832 MONO_OBJECT_SETREF (msg, async_result, ares);
2833 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2837 res = mono_thread_pool_finish (ares, &out_args, &exc);
2841 if (((MonoException*)exc)->stack_trace) {
2842 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2844 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2846 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2849 mono_raise_exception ((MonoException*)exc);
2852 mono_method_return_message_restore (method, params, out_args);
2859 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2861 MonoType *t = mono_type_get_underlying_type (return_type);
2863 if (return_type->byref)
2864 return_type = &mono_defaults.int_class->byval_arg;
2867 case MONO_TYPE_VOID:
2868 g_assert_not_reached ();
2871 case MONO_TYPE_STRING:
2872 case MONO_TYPE_CLASS:
2873 case MONO_TYPE_OBJECT:
2874 case MONO_TYPE_ARRAY:
2875 case MONO_TYPE_SZARRAY:
2879 case MONO_TYPE_BOOLEAN:
2882 case MONO_TYPE_CHAR:
2892 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2893 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2895 case MONO_TYPE_GENERICINST:
2896 if (!mono_type_generic_inst_is_valuetype (t))
2899 case MONO_TYPE_VALUETYPE: {
2900 MonoClass *klass = mono_class_from_mono_type (return_type);
2901 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2902 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2906 case MONO_TYPE_MVAR: {
2907 MonoClass *klass = mono_class_from_mono_type (return_type);
2908 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2912 g_warning ("type 0x%x not handled", return_type->type);
2913 g_assert_not_reached ();
2916 mono_mb_emit_byte (mb, CEE_RET);
2919 #endif /* DISABLE_JIT */
2922 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2924 MonoMethodSignature *sig;
2925 MonoMethodBuilder *mb;
2930 MonoGenericContext *ctx = NULL;
2931 MonoMethod *orig_method = NULL;
2933 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2934 !strcmp (method->name, "EndInvoke"));
2937 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2939 if (method->is_inflated) {
2940 orig_method = method;
2941 ctx = &((MonoMethodInflated*)method)->context;
2942 method = ((MonoMethodInflated*)method)->declaring;
2945 sig = mono_signature_no_pinvoke (method);
2951 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2952 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2956 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2957 (GHashFunc)mono_signature_hash,
2958 (GCompareFunc)mono_metadata_signature_equal);
2959 if ((res = mono_marshal_find_in_cache (cache, sig)))
2963 g_assert (sig->hasthis);
2965 name = mono_signature_to_name (sig, "end_invoke");
2967 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2969 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2973 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2975 mono_mb_emit_ldarg (mb, 0);
2976 mono_mb_emit_ldloc (mb, params_var);
2977 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2979 if (sig->ret->type == MONO_TYPE_VOID) {
2980 mono_mb_emit_byte (mb, CEE_POP);
2981 mono_mb_emit_byte (mb, CEE_RET);
2983 mono_mb_emit_restore_result (mb, sig->ret);
2988 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2989 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2991 res = mono_mb_create_and_cache (cache, sig,
2992 mb, sig, sig->param_count + 16);
3001 MonoMethodSignature *sig;
3003 } SignaturePointerPair;
3006 signature_pointer_pair_hash (gconstpointer data)
3008 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3010 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3014 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3016 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3017 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3021 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3023 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3025 return pair->pointer == user_data;
3029 free_signature_pointer_pair (SignaturePointerPair *pair)
3035 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3037 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3039 MonoMethodBuilder *mb;
3042 gpointer cache_key = NULL;
3043 SignaturePointerPair key;
3044 SignaturePointerPair *new_key;
3045 int local_prev, local_target;
3048 MonoClass *target_class = NULL;
3049 gboolean closed_over_null = FALSE;
3050 MonoGenericContext *ctx = NULL;
3051 MonoGenericContainer *container = NULL;
3052 MonoMethod *orig_method = NULL;
3054 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3057 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3058 !strcmp (method->name, "Invoke"));
3060 invoke_sig = sig = mono_signature_no_pinvoke (method);
3063 * If the delegate target is null, and the target method is not static, a virtual
3064 * call is made to that method with the first delegate argument as this. This is
3065 * a non-documented .NET feature.
3068 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3069 if (target_method->is_inflated) {
3070 MonoType *target_type;
3072 g_assert (method->signature->hasthis);
3073 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3074 mono_method_get_context (method));
3075 target_class = mono_class_from_mono_type (target_type);
3077 target_class = target_method->klass;
3080 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3083 if (static_method_with_first_arg_bound) {
3084 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3085 g_assert (!callvirt);
3086 invoke_sig = mono_method_signature (target_method);
3090 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3092 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3093 orig_method = method;
3094 ctx = &((MonoMethodInflated*)method)->context;
3095 method = ((MonoMethodInflated*)method)->declaring;
3097 container = mono_method_get_generic_container (method);
3099 container = method->klass->generic_container;
3100 g_assert (container);
3102 invoke_sig = sig = mono_signature_no_pinvoke (method);
3109 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3110 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3113 cache_key = method->klass;
3114 } else if (static_method_with_first_arg_bound) {
3115 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3116 (GHashFunc)mono_signature_hash,
3117 (GCompareFunc)mono_metadata_signature_equal);
3119 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3121 res = mono_marshal_find_in_cache (cache, invoke_sig);
3124 cache_key = invoke_sig;
3125 } else if (callvirt) {
3126 GHashTable **cache_ptr;
3128 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3130 /* We need to cache the signature+method pair */
3131 mono_marshal_lock ();
3133 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3135 key.sig = invoke_sig;
3136 key.pointer = target_method;
3137 res = g_hash_table_lookup (cache, &key);
3138 mono_marshal_unlock ();
3142 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3143 (GHashFunc)mono_signature_hash,
3144 (GCompareFunc)mono_metadata_signature_equal);
3145 res = mono_marshal_find_in_cache (cache, sig);
3151 static_sig = signature_dup (method->klass->image, sig);
3152 static_sig->hasthis = 0;
3153 if (!static_method_with_first_arg_bound)
3154 invoke_sig = static_sig;
3156 if (static_method_with_first_arg_bound)
3157 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3158 else if (closed_over_null)
3159 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3161 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3163 name = mono_signature_to_name (invoke_sig, "invoke");
3165 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3167 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3171 /* allocate local 0 (object) */
3172 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3173 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3175 g_assert (sig->hasthis);
3179 * prev.Invoke( args .. );
3180 * return this.<target>( args .. );
3183 /* this wrapper can be used in unmanaged-managed transitions */
3184 emit_thread_interrupt_checkpoint (mb);
3186 /* get this->prev */
3187 mono_mb_emit_ldarg (mb, 0);
3188 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3189 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3190 mono_mb_emit_stloc (mb, local_prev);
3191 mono_mb_emit_ldloc (mb, local_prev);
3193 /* if prev != null */
3194 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3198 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3199 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3201 mono_mb_emit_ldloc (mb, local_prev);
3202 for (i = 0; i < sig->param_count; i++)
3203 mono_mb_emit_ldarg (mb, i + 1);
3206 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3207 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3209 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3211 if (sig->ret->type != MONO_TYPE_VOID)
3212 mono_mb_emit_byte (mb, CEE_POP);
3214 /* continued or prev == null */
3215 mono_mb_patch_branch (mb, pos0);
3217 /* get this->target */
3218 mono_mb_emit_ldarg (mb, 0);
3219 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3220 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3221 mono_mb_emit_stloc (mb, local_target);
3223 /*static methods with bound first arg can have null target and still be bound*/
3224 if (!static_method_with_first_arg_bound) {
3225 /* if target != null */
3226 mono_mb_emit_ldloc (mb, local_target);
3227 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3229 /* then call this->method_ptr nonstatic */
3232 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3234 mono_mb_emit_ldloc (mb, local_target);
3235 for (i = 0; i < sig->param_count; ++i)
3236 mono_mb_emit_ldarg (mb, i + 1);
3237 mono_mb_emit_ldarg (mb, 0);
3238 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3239 mono_mb_emit_byte (mb, CEE_LDIND_I );
3240 mono_mb_emit_op (mb, CEE_CALLI, sig);
3242 mono_mb_emit_byte (mb, CEE_RET);
3245 /* else [target == null] call this->method_ptr static */
3246 mono_mb_patch_branch (mb, pos0);
3250 if (!closed_over_null) {
3251 mono_mb_emit_ldarg (mb, 1);
3252 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3253 for (i = 1; i < sig->param_count; ++i)
3254 mono_mb_emit_ldarg (mb, i + 1);
3255 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3257 mono_mb_emit_byte (mb, CEE_LDNULL);
3258 for (i = 0; i < sig->param_count; ++i)
3259 mono_mb_emit_ldarg (mb, i + 1);
3260 mono_mb_emit_op (mb, CEE_CALL, target_method);
3263 if (static_method_with_first_arg_bound) {
3264 mono_mb_emit_ldloc (mb, local_target);
3265 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3266 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3268 for (i = 0; i < sig->param_count; ++i)
3269 mono_mb_emit_ldarg (mb, i + 1);
3270 mono_mb_emit_ldarg (mb, 0);
3271 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3272 mono_mb_emit_byte (mb, CEE_LDIND_I );
3273 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3276 mono_mb_emit_byte (mb, CEE_RET);
3278 mb->skip_visibility = 1;
3279 #endif /* DISABLE_JIT */
3284 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3285 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3286 } else if (callvirt) {
3287 new_key = g_new0 (SignaturePointerPair, 1);
3290 info = mono_wrapper_info_create (mb, subtype);
3292 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3296 info = mono_wrapper_info_create (mb, subtype);
3298 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3306 * the returned method invokes all methods in a multicast delegate.
3309 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3311 gboolean callvirt = FALSE;
3312 gboolean static_method_with_first_arg_bound = FALSE;
3313 MonoMethod *target_method = NULL;
3314 MonoMethodSignature *sig;
3316 sig = mono_signature_no_pinvoke (method);
3318 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3320 target_method = del->method;
3323 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3324 static_method_with_first_arg_bound = TRUE;
3325 target_method = del->method;
3328 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3332 * signature_dup_add_this:
3334 * Make a copy of @sig, adding an explicit this argument.
3336 static MonoMethodSignature*
3337 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3339 MonoMethodSignature *res;
3342 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3343 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3344 res->param_count = sig->param_count + 1;
3345 res->hasthis = FALSE;
3346 for (i = sig->param_count - 1; i >= 0; i --)
3347 res->params [i + 1] = sig->params [i];
3348 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3354 MonoMethodSignature *ctor_sig;
3355 MonoMethodSignature *sig;
3358 /* protected by the marshal lock, contains CtorSigPair pointers */
3359 static GSList *strsig_list = NULL;
3361 static MonoMethodSignature *
3362 lookup_string_ctor_signature (MonoMethodSignature *sig)
3364 MonoMethodSignature *callsig;
3368 mono_marshal_lock ();
3370 for (item = strsig_list; item; item = item->next) {
3372 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3373 * because it is lock-free.
3375 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3380 mono_marshal_unlock ();
3384 static MonoMethodSignature *
3385 add_string_ctor_signature (MonoMethod *method)
3387 MonoMethodSignature *callsig;
3390 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3391 callsig->ret = &mono_defaults.string_class->byval_arg;
3392 cs = g_new (CtorSigPair, 1);
3394 cs->ctor_sig = mono_method_signature (method);
3396 mono_marshal_lock ();
3397 strsig_list = g_slist_prepend (strsig_list, cs);
3398 mono_marshal_unlock ();
3403 * mono_marshal_get_string_ctor_signature:
3405 * Return the modified signature used by string ctors (they return the newly created
3408 MonoMethodSignature*
3409 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3411 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3413 sig = add_string_ctor_signature (method);
3419 get_runtime_invoke_type (MonoType *t, gboolean ret)
3422 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3424 /* Can't share this with 'I' as that needs another indirection */
3425 return &mono_defaults.int_class->this_arg;
3428 if (MONO_TYPE_IS_REFERENCE (t))
3429 return &mono_defaults.object_class->byval_arg;
3432 /* The result needs to be boxed */
3437 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3440 return &mono_defaults.sbyte_class->byval_arg;
3442 return &mono_defaults.int16_class->byval_arg;
3444 return &mono_defaults.int32_class->byval_arg;
3447 return &mono_defaults.int64_class->byval_arg;
3448 case MONO_TYPE_BOOLEAN:
3449 return &mono_defaults.byte_class->byval_arg;
3450 case MONO_TYPE_CHAR:
3451 return &mono_defaults.uint16_class->byval_arg;
3454 return &mono_defaults.int_class->byval_arg;
3455 case MONO_TYPE_VALUETYPE:
3456 if (t->data.klass->enumtype) {
3457 t = mono_class_enum_basetype (t->data.klass);
3467 * mono_marshal_get_runtime_invoke_sig:
3469 * Return a common signature used for sharing runtime invoke wrappers.
3471 static MonoMethodSignature*
3472 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3474 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3477 res->generic_param_count = 0;
3478 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3479 for (i = 0; i < res->param_count; ++i)
3480 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3486 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3488 /* Can't share wrappers which return a vtype since it needs to be boxed */
3489 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))
3492 return mono_metadata_signature_equal (sig1, sig2);
3500 * Emit the call to the wrapper method from a runtime invoke wrapper.
3503 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3504 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3506 gboolean virtual, gboolean need_direct_wrapper)
3508 static MonoString *string_dummy = NULL;
3510 int *tmp_nullable_locals;
3511 gboolean void_ret = FALSE;
3513 /* to make it work with our special string constructors */
3514 if (!string_dummy) {
3515 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3516 string_dummy = mono_string_new_wrapper ("dummy");
3520 g_assert (sig->hasthis);
3521 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3525 if (method->string_ctor) {
3526 if (mono_gc_is_moving ()) {
3527 mono_mb_emit_ptr (mb, &string_dummy);
3528 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3530 mono_mb_emit_ptr (mb, string_dummy);
3533 mono_mb_emit_ldarg (mb, 0);
3537 tmp_nullable_locals = g_new0 (int, sig->param_count);
3539 for (i = 0; i < sig->param_count; i++) {
3540 MonoType *t = sig->params [i];
3543 mono_mb_emit_ldarg (mb, 1);
3545 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3546 mono_mb_emit_byte (mb, CEE_ADD);
3550 mono_mb_emit_byte (mb, CEE_LDIND_I);
3551 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3552 * So to make this work we unbox it to a local variablee and push a reference to that.
3554 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3555 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3557 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3558 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3559 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3564 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3565 type = sig->params [i]->type;
3569 case MONO_TYPE_BOOLEAN:
3573 case MONO_TYPE_CHAR:
3582 mono_mb_emit_byte (mb, CEE_LDIND_I);
3583 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3585 case MONO_TYPE_STRING:
3586 case MONO_TYPE_CLASS:
3587 case MONO_TYPE_ARRAY:
3589 case MONO_TYPE_SZARRAY:
3590 case MONO_TYPE_OBJECT:
3591 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3593 case MONO_TYPE_GENERICINST:
3594 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3595 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3600 case MONO_TYPE_VALUETYPE:
3601 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3602 type = mono_class_enum_basetype (t->data.klass)->type;
3605 mono_mb_emit_byte (mb, CEE_LDIND_I);
3606 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3607 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3608 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3609 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3611 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3615 g_assert_not_reached ();
3620 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3621 } else if (need_direct_wrapper) {
3622 mono_mb_emit_op (mb, CEE_CALL, method);
3624 mono_mb_emit_ldarg (mb, 3);
3625 mono_mb_emit_calli (mb, callsig);
3628 if (sig->ret->byref) {
3630 g_assert_not_reached ();
3633 switch (sig->ret->type) {
3634 case MONO_TYPE_VOID:
3635 if (!method->string_ctor)
3638 case MONO_TYPE_BOOLEAN:
3639 case MONO_TYPE_CHAR:
3652 case MONO_TYPE_VALUETYPE:
3653 case MONO_TYPE_TYPEDBYREF:
3654 case MONO_TYPE_GENERICINST:
3655 /* box value types */
3656 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3658 case MONO_TYPE_STRING:
3659 case MONO_TYPE_CLASS:
3660 case MONO_TYPE_ARRAY:
3661 case MONO_TYPE_SZARRAY:
3662 case MONO_TYPE_OBJECT:
3666 /* The result is an IntPtr */
3667 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3670 g_assert_not_reached ();
3674 mono_mb_emit_stloc (mb, loc_res);
3676 /* Convert back nullable-byref arguments */
3677 for (i = 0; i < sig->param_count; i++) {
3678 MonoType *t = sig->params [i];
3681 * Box the result and put it back into the array, the caller will have
3682 * to obtain it from there.
3684 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3685 mono_mb_emit_ldarg (mb, 1);
3686 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3687 mono_mb_emit_byte (mb, CEE_ADD);
3689 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3690 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3692 mono_mb_emit_byte (mb, CEE_STIND_REF);
3696 g_free (tmp_nullable_locals);
3700 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3701 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3702 gboolean virtual, gboolean need_direct_wrapper)
3705 MonoExceptionClause *clause;
3706 int loc_res, loc_exc;
3708 /* The wrapper looks like this:
3714 * } catch (Exception e) {
3722 /* allocate local 0 (object) tmp */
3723 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3724 /* allocate local 1 (object) exc */
3725 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3727 /* *exc is assumed to be initialized to NULL by the caller */
3729 mono_mb_emit_byte (mb, CEE_LDARG_2);
3730 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3735 labels [1] = mono_mb_get_label (mb);
3736 emit_thread_force_interrupt_checkpoint (mb);
3737 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3739 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3741 /* Add a try clause around the call */
3742 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3743 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3744 clause->data.catch_class = mono_defaults.exception_class;
3745 clause->try_offset = labels [1];
3746 clause->try_len = mono_mb_get_label (mb) - labels [1];
3748 clause->handler_offset = mono_mb_get_label (mb);
3751 mono_mb_emit_stloc (mb, loc_exc);
3752 mono_mb_emit_byte (mb, CEE_LDARG_2);
3753 mono_mb_emit_ldloc (mb, loc_exc);
3754 mono_mb_emit_byte (mb, CEE_STIND_REF);
3756 mono_mb_emit_branch (mb, CEE_LEAVE);
3758 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3760 mono_mb_set_clauses (mb, 1, clause);
3762 mono_mb_patch_branch (mb, labels [2]);
3763 mono_mb_emit_ldloc (mb, loc_res);
3764 mono_mb_emit_byte (mb, CEE_RET);
3769 mono_mb_patch_branch (mb, labels [0]);
3770 emit_thread_force_interrupt_checkpoint (mb);
3771 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3773 mono_mb_emit_ldloc (mb, 0);
3774 mono_mb_emit_byte (mb, CEE_RET);
3779 * generates IL code for the runtime invoke function
3780 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3782 * we also catch exceptions if exc != null
3783 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3784 * it means that the compiled code for METHOD does not have to be looked up
3785 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3786 * its METHOD argument.
3789 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3791 MonoMethodSignature *sig, *csig, *callsig;
3792 MonoMethodBuilder *mb;
3793 GHashTable *cache = NULL;
3794 MonoClass *target_klass;
3795 MonoMethod *res = NULL;
3796 static MonoMethodSignature *cctor_signature = NULL;
3797 static MonoMethodSignature *finalize_signature = NULL;
3799 const char *param_names [16];
3800 gboolean need_direct_wrapper = FALSE;
3805 if (!cctor_signature) {
3806 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3807 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3809 if (!finalize_signature) {
3810 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3811 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3812 finalize_signature->hasthis = 1;
3816 need_direct_wrapper = TRUE;
3819 * Use a separate cache indexed by methods to speed things up and to avoid the
3820 * boundless mempool growth caused by the signature_dup stuff below.
3823 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3825 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3826 res = mono_marshal_find_in_cache (cache, method);
3830 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3831 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3833 * Array Get/Set/Address methods. The JIT implements them using inline code
3834 * so we need to create an invoke wrapper which calls the method directly.
3836 need_direct_wrapper = TRUE;
3839 if (method->string_ctor) {
3840 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3842 callsig = add_string_ctor_signature (method);
3843 /* Can't share this as we push a string as this */
3844 need_direct_wrapper = TRUE;
3846 if (method_is_dynamic (method))
3847 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3849 callsig = mono_method_signature (method);
3852 target_klass = get_wrapper_target_class (method->klass->image);
3854 /* Try to share wrappers for non-corlib methods with simple signatures */
3855 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3856 callsig = cctor_signature;
3857 target_klass = mono_defaults.object_class;
3858 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3859 callsig = finalize_signature;
3860 target_klass = mono_defaults.object_class;
3863 if (need_direct_wrapper) {
3864 /* Already searched at the start */
3866 MonoMethodSignature *tmp_sig;
3868 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3870 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3871 /* These have a different csig */
3872 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3873 (GHashFunc)mono_signature_hash,
3874 (GCompareFunc)runtime_invoke_signature_equal);
3876 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3877 (GHashFunc)mono_signature_hash,
3878 (GCompareFunc)runtime_invoke_signature_equal);
3880 /* from mono_marshal_find_in_cache */
3881 mono_marshal_lock ();
3882 res = g_hash_table_lookup (cache, callsig);
3883 mono_marshal_unlock ();
3890 /* Make a copy of the signature from the image mempool */
3892 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3896 sig = mono_method_signature (method);
3898 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3900 csig->ret = &mono_defaults.object_class->byval_arg;
3901 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3902 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3904 csig->params [0] = &mono_defaults.object_class->byval_arg;
3905 csig->params [1] = &mono_defaults.int_class->byval_arg;
3906 csig->params [2] = &mono_defaults.int_class->byval_arg;
3907 csig->params [3] = &mono_defaults.int_class->byval_arg;
3910 /* This is called from runtime code so it has to be cdecl */
3911 csig->call_convention = MONO_CALL_C;
3914 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3915 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3919 param_names [0] = "this";
3920 param_names [1] = "params";
3921 param_names [2] = "exc";
3922 param_names [3] = "method";
3923 mono_mb_set_param_names (mb, param_names);
3925 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3928 if (need_direct_wrapper) {
3930 mb->skip_visibility = 1;
3932 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3933 info->d.runtime_invoke.method = method;
3934 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3936 /* taken from mono_mb_create_and_cache */
3937 mono_marshal_lock ();
3938 res = g_hash_table_lookup (cache, callsig);
3939 mono_marshal_unlock ();
3941 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3942 info->d.runtime_invoke.sig = callsig;
3944 /* Somebody may have created it before us */
3947 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3949 mono_marshal_lock ();
3950 res = g_hash_table_lookup (cache, callsig);
3953 g_hash_table_insert (cache, callsig, res);
3954 /* Can't insert it into wrapper_hash since the key is a signature */
3955 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3957 mono_free_method (newm);
3959 mono_marshal_unlock ();
3962 /* end mono_mb_create_and_cache */
3971 * mono_marshal_get_runtime_invoke_dynamic:
3973 * Return a method which can be used to invoke managed methods from native code
3975 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3976 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3977 * ARGS should point to an architecture specific structure containing
3978 * the arguments and space for the return value.
3979 * The other arguments are the same as for runtime_invoke (), except that
3980 * ARGS should contain the this argument too.
3981 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3982 * is only one copy of it, which is useful in full-aot.
3983 * The wrapper info for the wrapper is a WrapperInfo structure.
3986 mono_marshal_get_runtime_invoke_dynamic (void)
3988 static MonoMethod *method;
3989 MonoMethodSignature *csig;
3990 MonoExceptionClause *clause;
3991 MonoMethodBuilder *mb;
3999 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4001 csig->ret = &mono_defaults.void_class->byval_arg;
4002 csig->params [0] = &mono_defaults.int_class->byval_arg;
4003 csig->params [1] = &mono_defaults.int_class->byval_arg;
4004 csig->params [2] = &mono_defaults.int_class->byval_arg;
4005 csig->params [3] = &mono_defaults.int_class->byval_arg;
4007 name = g_strdup ("runtime_invoke_dynamic");
4008 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4012 /* allocate local 0 (object) tmp */
4013 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4014 /* allocate local 1 (object) exc */
4015 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4017 /* cond set *exc to null */
4018 mono_mb_emit_byte (mb, CEE_LDARG_1);
4019 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4020 mono_mb_emit_byte (mb, 3);
4021 mono_mb_emit_byte (mb, CEE_LDARG_1);
4022 mono_mb_emit_byte (mb, CEE_LDNULL);
4023 mono_mb_emit_byte (mb, CEE_STIND_REF);
4025 emit_thread_force_interrupt_checkpoint (mb);
4027 mono_mb_emit_byte (mb, CEE_LDARG_0);
4028 mono_mb_emit_byte (mb, CEE_LDARG_2);
4029 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4030 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4032 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4034 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4035 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4036 clause->try_len = mono_mb_get_label (mb);
4039 clause->data.filter_offset = mono_mb_get_label (mb);
4041 mono_mb_emit_byte (mb, CEE_POP);
4042 mono_mb_emit_byte (mb, CEE_LDARG_1);
4043 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4044 mono_mb_emit_byte (mb, CEE_PREFIX1);
4045 mono_mb_emit_byte (mb, CEE_CGT_UN);
4046 mono_mb_emit_byte (mb, CEE_PREFIX1);
4047 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4049 clause->handler_offset = mono_mb_get_label (mb);
4052 /* store exception */
4053 mono_mb_emit_stloc (mb, 1);
4055 mono_mb_emit_byte (mb, CEE_LDARG_1);
4056 mono_mb_emit_ldloc (mb, 1);
4057 mono_mb_emit_byte (mb, CEE_STIND_REF);
4059 mono_mb_emit_byte (mb, CEE_LDNULL);
4060 mono_mb_emit_stloc (mb, 0);
4062 /* Check for the abort exception */
4063 mono_mb_emit_ldloc (mb, 1);
4064 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4065 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4067 /* Delay the abort exception */
4068 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4070 mono_mb_patch_short_branch (mb, posna);
4071 mono_mb_emit_branch (mb, CEE_LEAVE);
4073 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4075 mono_mb_set_clauses (mb, 1, clause);
4078 mono_mb_patch_branch (mb, pos);
4079 //mono_mb_emit_ldloc (mb, 0);
4080 mono_mb_emit_byte (mb, CEE_RET);
4081 #endif /* DISABLE_JIT */
4083 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4085 mono_marshal_lock ();
4086 /* double-checked locking */
4088 method = mono_mb_create (mb, csig, 16, info);
4090 mono_marshal_unlock ();
4099 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4101 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4102 klass->name_space, klass->name);
4104 mono_mb_emit_exception_marshal_directive (mb, msg);
4109 * generates IL code for the icall wrapper (the generated method
4110 * calls the unmanaged code in func)
4111 * The wrapper info for the wrapper is a WrapperInfo structure.
4114 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4116 MonoMethodSignature *csig, *csig2;
4117 MonoMethodBuilder *mb;
4122 g_assert (sig->pinvoke);
4124 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4126 mb->method->save_lmf = 1;
4128 /* Add an explicit this argument */
4130 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4132 csig2 = signature_dup (mono_defaults.corlib, sig);
4136 mono_mb_emit_byte (mb, CEE_LDARG_0);
4138 for (i = 0; i < sig->param_count; i++)
4139 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4141 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4142 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4143 mono_mb_emit_calli (mb, csig2);
4144 if (check_exceptions)
4145 emit_thread_interrupt_checkpoint (mb);
4146 mono_mb_emit_byte (mb, CEE_RET);
4149 csig = signature_dup (mono_defaults.corlib, sig);
4151 if (csig->call_convention == MONO_CALL_VARARG)
4152 csig->call_convention = 0;
4154 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4155 info->d.icall.func = (gpointer)func;
4156 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4163 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4164 MonoMarshalSpec *spec,
4165 int conv_arg, MonoType **conv_arg_type,
4166 MarshalAction action)
4169 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4170 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4175 static MonoClass *ICustomMarshaler = NULL;
4176 static MonoMethod *cleanup_native, *cleanup_managed;
4177 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4178 MonoMethod *get_instance = NULL;
4179 MonoMethodBuilder *mb = m->mb;
4180 char *exception_msg = NULL;
4184 if (!ICustomMarshaler) {
4185 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4187 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4188 goto handle_exception;
4191 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4192 g_assert (cleanup_native);
4193 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4194 g_assert (cleanup_managed);
4195 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4196 g_assert (marshal_managed_to_native);
4197 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4198 g_assert (marshal_native_to_managed);
4200 mono_memory_barrier ();
4201 ICustomMarshaler = klass;
4204 if (spec->data.custom_data.image)
4205 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4207 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4208 g_assert (mtype != NULL);
4209 mklass = mono_class_from_mono_type (mtype);
4210 g_assert (mklass != NULL);
4212 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4213 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4215 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4217 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4218 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4219 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4220 (get_sig->params [0]->type != MONO_TYPE_STRING))
4221 get_instance = NULL;
4225 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);
4228 /* Throw exception and emit compensation code if neccesary */
4229 if (exception_msg) {
4231 case MARSHAL_ACTION_CONV_IN:
4232 case MARSHAL_ACTION_CONV_RESULT:
4233 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4234 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4235 mono_mb_emit_byte (mb, CEE_POP);
4237 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4238 g_free (exception_msg);
4241 case MARSHAL_ACTION_PUSH:
4242 mono_mb_emit_byte (mb, CEE_LDNULL);
4250 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4251 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4254 case MARSHAL_ACTION_CONV_IN:
4256 case MONO_TYPE_CLASS:
4257 case MONO_TYPE_OBJECT:
4258 case MONO_TYPE_STRING:
4259 case MONO_TYPE_ARRAY:
4260 case MONO_TYPE_SZARRAY:
4261 case MONO_TYPE_VALUETYPE:
4265 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4266 g_assert_not_reached ();
4270 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4272 mono_mb_emit_byte (mb, CEE_LDNULL);
4273 mono_mb_emit_stloc (mb, conv_arg);
4275 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4278 /* Minic MS.NET behavior */
4279 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4282 /* Check for null */
4283 mono_mb_emit_ldarg (mb, argnum);
4285 mono_mb_emit_byte (mb, CEE_LDIND_I);
4286 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4288 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4290 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4292 mono_mb_emit_ldarg (mb, argnum);
4294 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4296 if (t->type == MONO_TYPE_VALUETYPE) {
4298 * Since we can't determine the type of the argument, we
4299 * will assume the unmanaged function takes a pointer.
4301 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4303 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4306 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4307 mono_mb_emit_stloc (mb, conv_arg);
4309 mono_mb_patch_branch (mb, pos2);
4312 case MARSHAL_ACTION_CONV_OUT:
4313 /* Check for null */
4314 mono_mb_emit_ldloc (mb, conv_arg);
4315 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4318 mono_mb_emit_ldarg (mb, argnum);
4320 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4322 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4324 mono_mb_emit_ldloc (mb, conv_arg);
4325 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4326 mono_mb_emit_byte (mb, CEE_STIND_REF);
4327 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4328 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4330 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4332 mono_mb_emit_ldloc (mb, conv_arg);
4333 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4335 /* We have nowhere to store the result */
4336 mono_mb_emit_byte (mb, CEE_POP);
4339 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4341 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4343 mono_mb_emit_ldloc (mb, conv_arg);
4345 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4347 mono_mb_patch_branch (mb, pos2);
4350 case MARSHAL_ACTION_PUSH:
4352 mono_mb_emit_ldloc_addr (mb, conv_arg);
4354 mono_mb_emit_ldloc (mb, conv_arg);
4357 case MARSHAL_ACTION_CONV_RESULT:
4358 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4360 mono_mb_emit_stloc (mb, 3);
4362 mono_mb_emit_ldloc (mb, 3);
4363 mono_mb_emit_stloc (mb, loc1);
4365 /* Check for null */
4366 mono_mb_emit_ldloc (mb, 3);
4367 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4369 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4371 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4372 mono_mb_emit_byte (mb, CEE_DUP);
4374 mono_mb_emit_ldloc (mb, 3);
4375 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4376 mono_mb_emit_stloc (mb, 3);
4378 mono_mb_emit_ldloc (mb, loc1);
4379 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4381 mono_mb_patch_branch (mb, pos2);
4384 case MARSHAL_ACTION_MANAGED_CONV_IN:
4385 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4387 mono_mb_emit_byte (mb, CEE_LDNULL);
4388 mono_mb_emit_stloc (mb, conv_arg);
4390 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4393 /* Check for null */
4394 mono_mb_emit_ldarg (mb, argnum);
4396 mono_mb_emit_byte (mb, CEE_LDIND_I);
4397 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4399 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4400 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4402 mono_mb_emit_ldarg (mb, argnum);
4404 mono_mb_emit_byte (mb, CEE_LDIND_I);
4406 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4407 mono_mb_emit_stloc (mb, conv_arg);
4409 mono_mb_patch_branch (mb, pos2);
4412 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4413 g_assert (!t->byref);
4415 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4417 mono_mb_emit_stloc (mb, 3);
4419 mono_mb_emit_ldloc (mb, 3);
4420 mono_mb_emit_stloc (mb, loc1);
4422 /* Check for null */
4423 mono_mb_emit_ldloc (mb, 3);
4424 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4426 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4427 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4428 mono_mb_emit_byte (mb, CEE_DUP);
4430 mono_mb_emit_ldloc (mb, 3);
4431 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4432 mono_mb_emit_stloc (mb, 3);
4434 mono_mb_emit_ldloc (mb, loc1);
4435 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4437 mono_mb_patch_branch (mb, pos2);
4440 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4442 /* Check for null */
4443 mono_mb_emit_ldloc (mb, conv_arg);
4444 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4447 mono_mb_emit_ldarg (mb, argnum);
4449 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4451 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4453 mono_mb_emit_ldloc (mb, conv_arg);
4454 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4455 mono_mb_emit_byte (mb, CEE_STIND_I);
4458 /* Call CleanUpManagedData */
4459 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4461 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4463 mono_mb_emit_ldloc (mb, conv_arg);
4464 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4466 mono_mb_patch_branch (mb, pos2);
4470 g_assert_not_reached ();
4478 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4479 MonoMarshalSpec *spec,
4480 int conv_arg, MonoType **conv_arg_type,
4481 MarshalAction action)
4484 MonoMethodBuilder *mb = m->mb;
4487 case MARSHAL_ACTION_CONV_IN: {
4488 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4490 g_assert (t->type == MONO_TYPE_OBJECT);
4491 g_assert (!t->byref);
4493 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4494 mono_mb_emit_ldarg (mb, argnum);
4495 mono_mb_emit_icon (mb, encoding);
4496 mono_mb_emit_icon (mb, t->attrs);
4497 mono_mb_emit_icall (mb, mono_marshal_asany);
4498 mono_mb_emit_stloc (mb, conv_arg);
4502 case MARSHAL_ACTION_PUSH:
4503 mono_mb_emit_ldloc (mb, conv_arg);
4506 case MARSHAL_ACTION_CONV_OUT: {
4507 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4509 mono_mb_emit_ldarg (mb, argnum);
4510 mono_mb_emit_ldloc (mb, conv_arg);
4511 mono_mb_emit_icon (mb, encoding);
4512 mono_mb_emit_icon (mb, t->attrs);
4513 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4518 g_assert_not_reached ();
4525 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4526 MonoMarshalSpec *spec,
4527 int conv_arg, MonoType **conv_arg_type,
4528 MarshalAction action)
4531 MonoMethodBuilder *mb = m->mb;
4532 MonoClass *klass, *date_time_class;
4535 klass = mono_class_from_mono_type (t);
4537 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4540 case MARSHAL_ACTION_CONV_IN:
4541 if (klass == date_time_class) {
4542 /* Convert it to an OLE DATE type */
4543 static MonoMethod *to_oadate;
4546 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4547 g_assert (to_oadate);
4549 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4552 mono_mb_emit_ldarg (mb, argnum);
4553 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4556 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4558 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4560 mono_mb_emit_ldarg_addr (mb, argnum);
4561 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4562 mono_mb_emit_stloc (mb, conv_arg);
4566 mono_mb_patch_branch (mb, pos);
4570 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4571 klass->blittable || klass->enumtype)
4574 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4576 /* store the address of the source into local variable 0 */
4578 mono_mb_emit_ldarg (mb, argnum);
4580 mono_mb_emit_ldarg_addr (mb, argnum);
4582 mono_mb_emit_stloc (mb, 0);
4584 /* allocate space for the native struct and
4585 * store the address into local variable 1 (dest) */
4586 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4587 mono_mb_emit_byte (mb, CEE_PREFIX1);
4588 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4589 mono_mb_emit_stloc (mb, conv_arg);
4592 mono_mb_emit_ldloc (mb, 0);
4593 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4596 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4598 mono_mb_emit_ldloc (mb, conv_arg);
4599 mono_mb_emit_stloc (mb, 1);
4601 /* emit valuetype conversion code */
4602 emit_struct_conv (mb, klass, FALSE);
4606 mono_mb_patch_branch (mb, pos);
4609 case MARSHAL_ACTION_PUSH:
4610 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4612 g_assert (!t->byref);
4614 /* Have to change the signature since the vtype is passed byref */
4615 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4617 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4618 klass->blittable || klass->enumtype)
4619 mono_mb_emit_ldarg_addr (mb, argnum);
4621 mono_mb_emit_ldloc (mb, conv_arg);
4625 if (klass == date_time_class) {
4627 mono_mb_emit_ldloc_addr (mb, conv_arg);
4629 mono_mb_emit_ldloc (mb, conv_arg);
4633 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4634 klass->blittable || klass->enumtype) {
4635 mono_mb_emit_ldarg (mb, argnum);
4638 mono_mb_emit_ldloc (mb, conv_arg);
4640 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4641 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4645 case MARSHAL_ACTION_CONV_OUT:
4646 if (klass == date_time_class) {
4647 /* Convert from an OLE DATE type */
4648 static MonoMethod *from_oadate;
4653 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4655 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4656 g_assert (from_oadate);
4658 mono_mb_emit_ldarg (mb, argnum);
4659 mono_mb_emit_ldloc (mb, conv_arg);
4660 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4661 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4666 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4667 klass->blittable || klass->enumtype)
4671 /* dst = argument */
4672 mono_mb_emit_ldarg (mb, argnum);
4673 mono_mb_emit_stloc (mb, 1);
4675 mono_mb_emit_ldloc (mb, 1);
4676 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4678 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4679 /* src = tmp_locals [i] */
4680 mono_mb_emit_ldloc (mb, conv_arg);
4681 mono_mb_emit_stloc (mb, 0);
4683 /* emit valuetype conversion code */
4684 emit_struct_conv (mb, klass, TRUE);
4688 emit_struct_free (mb, klass, conv_arg);
4691 mono_mb_patch_branch (mb, pos);
4694 case MARSHAL_ACTION_CONV_RESULT:
4695 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4697 mono_mb_emit_stloc (mb, 3);
4701 /* load pointer to returned value type */
4702 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4703 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4704 /* store the address of the source into local variable 0 */
4705 mono_mb_emit_stloc (mb, 0);
4707 mono_mb_emit_ldloc_addr (mb, 3);
4708 mono_mb_emit_stloc (mb, 1);
4710 /* emit valuetype conversion code */
4711 emit_struct_conv (mb, klass, TRUE);
4714 case MARSHAL_ACTION_MANAGED_CONV_IN:
4715 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4716 klass->blittable || klass->enumtype) {
4721 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4723 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4727 mono_mb_emit_ldarg (mb, argnum);
4729 mono_mb_emit_ldarg_addr (mb, argnum);
4730 mono_mb_emit_stloc (mb, 0);
4733 mono_mb_emit_ldloc (mb, 0);
4734 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4737 mono_mb_emit_ldloc_addr (mb, conv_arg);
4738 mono_mb_emit_stloc (mb, 1);
4740 /* emit valuetype conversion code */
4741 emit_struct_conv (mb, klass, TRUE);
4744 mono_mb_patch_branch (mb, pos);
4747 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4748 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4749 klass->blittable || klass->enumtype) {
4753 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4756 /* Check for null */
4757 mono_mb_emit_ldarg (mb, argnum);
4758 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4761 mono_mb_emit_ldloc_addr (mb, conv_arg);
4762 mono_mb_emit_stloc (mb, 0);
4765 mono_mb_emit_ldarg (mb, argnum);
4766 mono_mb_emit_stloc (mb, 1);
4768 /* emit valuetype conversion code */
4769 emit_struct_conv (mb, klass, FALSE);
4771 mono_mb_patch_branch (mb, pos2);
4774 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4775 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4776 klass->blittable || klass->enumtype) {
4777 mono_mb_emit_stloc (mb, 3);
4782 /* load pointer to returned value type */
4783 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4784 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4786 /* store the address of the source into local variable 0 */
4787 mono_mb_emit_stloc (mb, 0);
4788 /* allocate space for the native struct and
4789 * store the address into dst_ptr */
4790 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4791 m->retobj_class = klass;
4792 g_assert (m->retobj_var);
4793 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4794 mono_mb_emit_byte (mb, CEE_CONV_I);
4795 mono_mb_emit_icall (mb, mono_marshal_alloc);
4796 mono_mb_emit_stloc (mb, 1);
4797 mono_mb_emit_ldloc (mb, 1);
4798 mono_mb_emit_stloc (mb, m->retobj_var);
4800 /* emit valuetype conversion code */
4801 emit_struct_conv (mb, klass, FALSE);
4805 g_assert_not_reached ();
4812 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4813 MonoMarshalSpec *spec,
4814 int conv_arg, MonoType **conv_arg_type,
4815 MarshalAction action)
4819 case MARSHAL_ACTION_CONV_IN:
4820 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4822 case MARSHAL_ACTION_MANAGED_CONV_IN:
4823 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4827 MonoMethodBuilder *mb = m->mb;
4828 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4829 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4833 case MARSHAL_ACTION_CONV_IN:
4834 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4835 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4838 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4841 mono_mb_emit_ldarg (mb, argnum);
4842 mono_mb_emit_byte (mb, CEE_LDIND_I);
4844 mono_mb_emit_ldarg (mb, argnum);
4848 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4849 mono_mb_emit_exception_marshal_directive (mb, msg);
4851 mono_mb_emit_icall (mb, conv_to_icall (conv));
4853 mono_mb_emit_stloc (mb, conv_arg);
4857 case MARSHAL_ACTION_CONV_OUT:
4858 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4860 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4861 mono_mb_emit_exception_marshal_directive (mb, msg);
4865 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4866 static MonoMethod *m;
4869 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4874 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4875 mono_mb_emit_exception_marshal_directive (mb, msg);
4880 * Have to allocate a new string with the same length as the original, and
4881 * copy the contents of the buffer pointed to by CONV_ARG into it.
4883 g_assert (t->byref);
4884 mono_mb_emit_ldarg (mb, argnum);
4885 mono_mb_emit_ldloc (mb, conv_arg);
4886 mono_mb_emit_ldarg (mb, argnum);
4887 mono_mb_emit_byte (mb, CEE_LDIND_I);
4888 mono_mb_emit_managed_call (mb, m, NULL);
4889 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4890 mono_mb_emit_byte (mb, CEE_STIND_REF);
4891 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4892 mono_mb_emit_ldarg (mb, argnum);
4893 mono_mb_emit_ldloc (mb, conv_arg);
4894 mono_mb_emit_icall (mb, conv_to_icall (conv));
4895 mono_mb_emit_byte (mb, CEE_STIND_REF);
4900 mono_mb_emit_ldloc (mb, conv_arg);
4901 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4902 mono_mb_emit_icall (mb, mono_free_bstr);
4904 mono_mb_emit_icall (mb, mono_marshal_free);
4908 case MARSHAL_ACTION_PUSH:
4909 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4910 mono_mb_emit_ldloc_addr (mb, conv_arg);
4912 mono_mb_emit_ldloc (mb, conv_arg);
4915 case MARSHAL_ACTION_CONV_RESULT:
4916 mono_mb_emit_stloc (mb, 0);
4918 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4920 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4921 mono_mb_emit_exception_marshal_directive (mb, msg);
4925 mono_mb_emit_ldloc (mb, 0);
4926 mono_mb_emit_icall (mb, conv_to_icall (conv));
4927 mono_mb_emit_stloc (mb, 3);
4929 /* free the string */
4930 mono_mb_emit_ldloc (mb, 0);
4931 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4932 mono_mb_emit_icall (mb, mono_free_bstr);
4934 mono_mb_emit_icall (mb, mono_marshal_free);
4937 case MARSHAL_ACTION_MANAGED_CONV_IN:
4938 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4940 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4943 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4947 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4949 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4950 mono_mb_emit_exception_marshal_directive (mb, msg);
4954 mono_mb_emit_ldarg (mb, argnum);
4956 mono_mb_emit_byte (mb, CEE_LDIND_I);
4957 mono_mb_emit_icall (mb, conv_to_icall (conv));
4958 mono_mb_emit_stloc (mb, conv_arg);
4961 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4964 mono_mb_emit_ldarg (mb, argnum);
4965 mono_mb_emit_ldloc (mb, conv_arg);
4966 mono_mb_emit_icall (mb, conv_to_icall (conv));
4967 mono_mb_emit_byte (mb, CEE_STIND_I);
4972 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4973 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4974 /* We need to make a copy so the caller is able to free it */
4975 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4977 mono_mb_emit_icall (mb, conv_to_icall (conv));
4978 mono_mb_emit_stloc (mb, 3);
4982 g_assert_not_reached ();
4990 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4991 MonoMarshalSpec *spec, int conv_arg,
4992 MonoType **conv_arg_type, MarshalAction action)
4995 if (action == MARSHAL_ACTION_CONV_IN)
4996 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4998 MonoMethodBuilder *mb = m->mb;
5001 case MARSHAL_ACTION_CONV_IN: {
5002 MonoType *intptr_type;
5003 int dar_release_slot, pos;
5005 intptr_type = &mono_defaults.int_class->byval_arg;
5006 conv_arg = mono_mb_add_local (mb, intptr_type);
5007 *conv_arg_type = intptr_type;
5009 if (!sh_dangerous_add_ref)
5010 init_safe_handle ();
5012 mono_mb_emit_ldarg (mb, argnum);
5013 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5014 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5016 mono_mb_patch_branch (mb, pos);
5019 * My tests in show that ref SafeHandles are not really
5020 * passed as ref objects. Instead a NULL is passed as the
5023 mono_mb_emit_icon (mb, 0);
5024 mono_mb_emit_stloc (mb, conv_arg);
5028 /* Create local to hold the ref parameter to DangerousAddRef */
5029 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5031 /* set release = false; */
5032 mono_mb_emit_icon (mb, 0);
5033 mono_mb_emit_stloc (mb, dar_release_slot);
5035 /* safehandle.DangerousAddRef (ref release) */
5036 mono_mb_emit_ldarg (mb, argnum);
5037 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5038 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5040 /* Pull the handle field from SafeHandle */
5041 mono_mb_emit_ldarg (mb, argnum);
5042 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5043 mono_mb_emit_byte (mb, CEE_LDIND_I);
5044 mono_mb_emit_stloc (mb, conv_arg);
5049 case MARSHAL_ACTION_PUSH:
5051 mono_mb_emit_ldloc_addr (mb, conv_arg);
5053 mono_mb_emit_ldloc (mb, conv_arg);
5056 case MARSHAL_ACTION_CONV_OUT: {
5057 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5058 int dar_release_slot = conv_arg + 1;
5061 if (!sh_dangerous_release)
5062 init_safe_handle ();
5068 * My tests indicate that ref SafeHandles parameters are not actually
5069 * passed by ref, but instead a new Handle is created regardless of
5070 * whether a change happens in the unmanaged side.
5072 * Also, the Handle is created before calling into unmanaged code,
5073 * but we do not support that mechanism (getting to the original
5074 * handle) and it makes no difference where we create this
5076 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5078 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5081 /* refval = new SafeHandleDerived ()*/
5082 mono_mb_emit_ldarg (mb, argnum);
5083 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5084 mono_mb_emit_byte (mb, CEE_STIND_REF);
5086 /* refval.handle = returned_handle */
5087 mono_mb_emit_ldarg (mb, argnum);
5088 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5089 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5090 mono_mb_emit_ldloc (mb, conv_arg);
5091 mono_mb_emit_byte (mb, CEE_STIND_I);
5093 mono_mb_emit_ldloc (mb, dar_release_slot);
5094 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5095 mono_mb_emit_ldarg (mb, argnum);
5096 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5097 mono_mb_patch_branch (mb, label_next);
5102 case MARSHAL_ACTION_CONV_RESULT: {
5103 MonoMethod *ctor = NULL;
5104 int intptr_handle_slot;
5106 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5107 mono_mb_emit_byte (mb, CEE_POP);
5108 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5112 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5114 mono_mb_emit_byte (mb, CEE_POP);
5115 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5118 /* Store the IntPtr results into a local */
5119 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5120 mono_mb_emit_stloc (mb, intptr_handle_slot);
5122 /* Create return value */
5123 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5124 mono_mb_emit_stloc (mb, 3);
5126 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5127 mono_mb_emit_ldloc (mb, 3);
5128 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5129 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5130 mono_mb_emit_byte (mb, CEE_STIND_I);
5134 case MARSHAL_ACTION_MANAGED_CONV_IN:
5135 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5138 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5139 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5142 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5143 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5146 printf ("Unhandled case for MarshalAction: %d\n", action);
5154 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5155 MonoMarshalSpec *spec, int conv_arg,
5156 MonoType **conv_arg_type, MarshalAction action)
5159 if (action == MARSHAL_ACTION_CONV_IN)
5160 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5162 MonoMethodBuilder *mb = m->mb;
5165 case MARSHAL_ACTION_CONV_IN: {
5166 MonoType *intptr_type;
5168 intptr_type = &mono_defaults.int_class->byval_arg;
5169 conv_arg = mono_mb_add_local (mb, intptr_type);
5170 *conv_arg_type = intptr_type;
5173 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5174 mono_mb_emit_exception_marshal_directive (mb, msg);
5177 mono_mb_emit_ldarg_addr (mb, argnum);
5178 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5179 mono_mb_emit_byte (mb, CEE_ADD);
5180 mono_mb_emit_byte (mb, CEE_LDIND_I);
5181 mono_mb_emit_stloc (mb, conv_arg);
5185 case MARSHAL_ACTION_PUSH:
5186 mono_mb_emit_ldloc (mb, conv_arg);
5189 case MARSHAL_ACTION_CONV_OUT: {
5190 /* no resource release required */
5194 case MARSHAL_ACTION_CONV_RESULT: {
5195 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5196 mono_mb_emit_exception_marshal_directive (mb, msg);
5200 case MARSHAL_ACTION_MANAGED_CONV_IN:
5201 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5204 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5205 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5208 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5209 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5212 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5220 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5221 MonoMarshalSpec *spec,
5222 int conv_arg, MonoType **conv_arg_type,
5223 MarshalAction action)
5226 if (action == MARSHAL_ACTION_CONV_IN)
5227 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5229 MonoMethodBuilder *mb = m->mb;
5230 MonoClass *klass = mono_class_from_mono_type (t);
5234 case MARSHAL_ACTION_CONV_IN:
5235 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5236 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5238 m->orig_conv_args [argnum] = 0;
5240 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5241 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5242 mono_mb_emit_exception_marshal_directive (mb, msg);
5246 if (klass->delegate) {
5248 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5249 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5250 mono_mb_emit_exception_marshal_directive (mb, msg);
5252 mono_mb_emit_byte (mb, CEE_LDNULL);
5253 mono_mb_emit_stloc (mb, conv_arg);
5255 mono_mb_emit_ldarg (mb, argnum);
5256 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5257 mono_mb_emit_stloc (mb, conv_arg);
5259 } else if (klass == mono_defaults.stringbuilder_class) {
5260 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5261 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5265 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5266 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5267 mono_mb_emit_exception_marshal_directive (mb, msg);
5273 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5277 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5278 mono_mb_emit_exception_marshal_directive (mb, msg);
5282 mono_mb_emit_ldarg (mb, argnum);
5284 mono_mb_emit_byte (mb, CEE_LDIND_I);
5286 mono_mb_emit_icall (mb, conv_to_icall (conv));
5287 mono_mb_emit_stloc (mb, conv_arg);
5288 } else if (klass->blittable) {
5289 mono_mb_emit_byte (mb, CEE_LDNULL);
5290 mono_mb_emit_stloc (mb, conv_arg);
5292 mono_mb_emit_ldarg (mb, argnum);
5293 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5295 mono_mb_emit_ldarg (mb, argnum);
5296 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5297 mono_mb_emit_stloc (mb, conv_arg);
5299 mono_mb_patch_branch (mb, pos);
5302 mono_mb_emit_byte (mb, CEE_LDNULL);
5303 mono_mb_emit_stloc (mb, conv_arg);
5306 /* we dont need any conversions for out parameters */
5307 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5310 mono_mb_emit_ldarg (mb, argnum);
5311 mono_mb_emit_byte (mb, CEE_LDIND_I);
5314 mono_mb_emit_ldarg (mb, argnum);
5315 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5316 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5319 /* store the address of the source into local variable 0 */
5320 mono_mb_emit_stloc (mb, 0);
5321 mono_mb_emit_ldloc (mb, 0);
5322 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5324 /* allocate space for the native struct and store the address */
5325 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5326 mono_mb_emit_byte (mb, CEE_PREFIX1);
5327 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5328 mono_mb_emit_stloc (mb, conv_arg);
5331 /* Need to store the original buffer so we can free it later */
5332 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5333 mono_mb_emit_ldloc (mb, conv_arg);
5334 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5337 /* set the src_ptr */
5338 mono_mb_emit_ldloc (mb, 0);
5339 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5340 mono_mb_emit_stloc (mb, 0);
5343 mono_mb_emit_ldloc (mb, conv_arg);
5344 mono_mb_emit_stloc (mb, 1);
5346 /* emit valuetype conversion code */
5347 emit_struct_conv (mb, klass, FALSE);
5349 mono_mb_patch_branch (mb, pos);
5353 case MARSHAL_ACTION_CONV_OUT:
5354 if (klass == mono_defaults.stringbuilder_class) {
5356 MonoMarshalNative encoding;
5357 MonoMarshalConv conv;
5359 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5360 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5362 g_assert (encoding != -1);
5365 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5369 mono_mb_emit_ldarg (mb, argnum);
5370 mono_mb_emit_ldloc (mb, conv_arg);
5373 case MONO_NATIVE_LPWSTR:
5374 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5376 case MONO_NATIVE_LPSTR:
5377 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5380 g_assert_not_reached ();
5383 mono_mb_emit_byte (mb, CEE_STIND_REF);
5385 mono_mb_emit_ldarg (mb, argnum);
5386 mono_mb_emit_ldloc (mb, conv_arg);
5388 mono_mb_emit_icall (mb, conv_to_icall (conv));
5392 mono_mb_emit_ldloc (mb, conv_arg);
5393 mono_mb_emit_icall (mb, mono_marshal_free);
5398 if (klass->delegate) {
5400 mono_mb_emit_ldarg (mb, argnum);
5401 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5402 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5403 mono_mb_emit_ldloc (mb, conv_arg);
5404 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5405 mono_mb_emit_byte (mb, CEE_STIND_REF);
5410 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5411 /* allocate a new object */
5412 mono_mb_emit_ldarg (mb, argnum);
5413 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5414 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5415 mono_mb_emit_byte (mb, CEE_STIND_REF);
5418 /* dst = *argument */
5419 mono_mb_emit_ldarg (mb, argnum);
5422 mono_mb_emit_byte (mb, CEE_LDIND_I);
5424 mono_mb_emit_stloc (mb, 1);
5426 mono_mb_emit_ldloc (mb, 1);
5427 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5429 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5430 mono_mb_emit_ldloc (mb, 1);
5431 mono_mb_emit_icon (mb, sizeof (MonoObject));
5432 mono_mb_emit_byte (mb, CEE_ADD);
5433 mono_mb_emit_stloc (mb, 1);
5435 /* src = tmp_locals [i] */
5436 mono_mb_emit_ldloc (mb, conv_arg);
5437 mono_mb_emit_stloc (mb, 0);
5439 /* emit valuetype conversion code */
5440 emit_struct_conv (mb, klass, TRUE);
5442 /* Free the structure returned by the native code */
5443 emit_struct_free (mb, klass, conv_arg);
5445 if (m->orig_conv_args [argnum]) {
5447 * If the native function changed the pointer, then free
5448 * the original structure plus the new pointer.
5450 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5451 mono_mb_emit_ldloc (mb, conv_arg);
5452 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5454 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5455 g_assert (m->orig_conv_args [argnum]);
5457 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5460 mono_mb_emit_ldloc (mb, conv_arg);
5461 mono_mb_emit_icall (mb, mono_marshal_free);
5463 mono_mb_patch_branch (mb, pos2);
5467 /* Free the original structure passed to native code */
5468 emit_struct_free (mb, klass, conv_arg);
5470 mono_mb_patch_branch (mb, pos);
5473 case MARSHAL_ACTION_PUSH:
5475 mono_mb_emit_ldloc_addr (mb, conv_arg);
5477 mono_mb_emit_ldloc (mb, conv_arg);
5480 case MARSHAL_ACTION_CONV_RESULT:
5481 if (klass->delegate) {
5482 g_assert (!t->byref);
5483 mono_mb_emit_stloc (mb, 0);
5484 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5485 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5486 mono_mb_emit_ldloc (mb, 0);
5487 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5488 mono_mb_emit_stloc (mb, 3);
5491 mono_mb_emit_stloc (mb, 0);
5493 /* Make a copy since emit_conv modifies local 0 */
5494 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5495 mono_mb_emit_ldloc (mb, 0);
5496 mono_mb_emit_stloc (mb, loc);
5498 mono_mb_emit_byte (mb, CEE_LDNULL);
5499 mono_mb_emit_stloc (mb, 3);
5501 mono_mb_emit_ldloc (mb, 0);
5502 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5504 /* allocate result object */
5506 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5507 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5508 mono_mb_emit_stloc (mb, 3);
5512 mono_mb_emit_ldloc (mb, 3);
5513 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5514 mono_mb_emit_stloc (mb, 1);
5516 /* emit conversion code */
5517 emit_struct_conv (mb, klass, TRUE);
5519 emit_struct_free (mb, klass, loc);
5521 /* Free the pointer allocated by unmanaged code */
5522 mono_mb_emit_ldloc (mb, loc);
5523 mono_mb_emit_icall (mb, mono_marshal_free);
5524 mono_mb_patch_branch (mb, pos);
5528 case MARSHAL_ACTION_MANAGED_CONV_IN:
5529 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5531 if (klass->delegate) {
5532 g_assert (!t->byref);
5533 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5534 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5535 mono_mb_emit_ldarg (mb, argnum);
5536 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5537 mono_mb_emit_stloc (mb, conv_arg);
5541 if (klass == mono_defaults.stringbuilder_class) {
5542 MonoMarshalNative encoding;
5544 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5547 g_assert (encoding == MONO_NATIVE_LPSTR);
5549 g_assert (!t->byref);
5550 g_assert (encoding != -1);
5552 mono_mb_emit_ldarg (mb, argnum);
5553 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5554 mono_mb_emit_stloc (mb, conv_arg);
5558 /* The class can not have an automatic layout */
5559 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5560 mono_mb_emit_auto_layout_exception (mb, klass);
5564 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5565 mono_mb_emit_byte (mb, CEE_LDNULL);
5566 mono_mb_emit_stloc (mb, conv_arg);
5571 mono_mb_emit_ldarg (mb, argnum);
5575 /* Check for NULL and raise an exception */
5576 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5578 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5580 mono_mb_patch_branch (mb, pos2);
5581 mono_mb_emit_ldarg (mb, argnum);
5582 mono_mb_emit_byte (mb, CEE_LDIND_I);
5585 mono_mb_emit_stloc (mb, 0);
5587 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5588 mono_mb_emit_stloc (mb, conv_arg);
5590 mono_mb_emit_ldloc (mb, 0);
5591 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5593 /* Create and set dst */
5594 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5595 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5596 mono_mb_emit_stloc (mb, conv_arg);
5597 mono_mb_emit_ldloc (mb, conv_arg);
5598 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5599 mono_mb_emit_stloc (mb, 1);
5601 /* emit valuetype conversion code */
5602 emit_struct_conv (mb, klass, TRUE);
5604 mono_mb_patch_branch (mb, pos);
5607 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5609 /* Check for null */
5610 mono_mb_emit_ldloc (mb, conv_arg);
5611 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5612 mono_mb_emit_ldarg (mb, argnum);
5613 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5614 mono_mb_emit_byte (mb, CEE_STIND_REF);
5615 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5617 mono_mb_patch_branch (mb, pos);
5620 mono_mb_emit_ldloc (mb, conv_arg);
5621 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5622 mono_mb_emit_stloc (mb, 0);
5624 /* Allocate and set dest */
5625 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5626 mono_mb_emit_byte (mb, CEE_CONV_I);
5627 mono_mb_emit_icall (mb, mono_marshal_alloc);
5628 mono_mb_emit_stloc (mb, 1);
5630 /* Update argument pointer */
5631 mono_mb_emit_ldarg (mb, argnum);
5632 mono_mb_emit_ldloc (mb, 1);
5633 mono_mb_emit_byte (mb, CEE_STIND_I);
5635 /* emit valuetype conversion code */
5636 emit_struct_conv (mb, klass, FALSE);
5638 mono_mb_patch_branch (mb, pos2);
5640 /* byval [Out] marshalling */
5642 /* FIXME: Handle null */
5645 mono_mb_emit_ldloc (mb, conv_arg);
5646 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5647 mono_mb_emit_stloc (mb, 0);
5650 mono_mb_emit_ldarg (mb, argnum);
5651 mono_mb_emit_stloc (mb, 1);
5653 /* emit valuetype conversion code */
5654 emit_struct_conv (mb, klass, FALSE);
5658 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5659 if (klass->delegate) {
5660 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5661 mono_mb_emit_stloc (mb, 3);
5665 /* The class can not have an automatic layout */
5666 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5667 mono_mb_emit_auto_layout_exception (mb, klass);
5671 mono_mb_emit_stloc (mb, 0);
5672 /* Check for null */
5673 mono_mb_emit_ldloc (mb, 0);
5674 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5675 mono_mb_emit_byte (mb, CEE_LDNULL);
5676 mono_mb_emit_stloc (mb, 3);
5677 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5679 mono_mb_patch_branch (mb, pos);
5682 mono_mb_emit_ldloc (mb, 0);
5683 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5684 mono_mb_emit_stloc (mb, 0);
5686 /* Allocate and set dest */
5687 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5688 mono_mb_emit_byte (mb, CEE_CONV_I);
5689 mono_mb_emit_icall (mb, mono_marshal_alloc);
5690 mono_mb_emit_byte (mb, CEE_DUP);
5691 mono_mb_emit_stloc (mb, 1);
5692 mono_mb_emit_stloc (mb, 3);
5694 emit_struct_conv (mb, klass, FALSE);
5696 mono_mb_patch_branch (mb, pos2);
5700 g_assert_not_reached ();
5711 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5712 MonoMarshalSpec *spec,
5713 int conv_arg, MonoType **conv_arg_type,
5714 MarshalAction action)
5716 MonoMethodBuilder *mb = m->mb;
5717 static MonoMethod *get_object_for_native_variant = NULL;
5718 static MonoMethod *get_native_variant_for_object = NULL;
5720 if (!get_object_for_native_variant)
5721 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5722 g_assert (get_object_for_native_variant);
5724 if (!get_native_variant_for_object)
5725 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5726 g_assert (get_native_variant_for_object);
5729 case MARSHAL_ACTION_CONV_IN: {
5730 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5733 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5735 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5737 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5740 mono_mb_emit_ldarg (mb, argnum);
5742 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5743 mono_mb_emit_ldloc_addr (mb, conv_arg);
5744 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5748 case MARSHAL_ACTION_CONV_OUT: {
5749 static MonoMethod *variant_clear = NULL;
5752 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5753 g_assert (variant_clear);
5756 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5757 mono_mb_emit_ldarg (mb, argnum);
5758 mono_mb_emit_ldloc_addr (mb, conv_arg);
5759 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5760 mono_mb_emit_byte (mb, CEE_STIND_REF);
5763 mono_mb_emit_ldloc_addr (mb, conv_arg);
5764 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5768 case MARSHAL_ACTION_PUSH:
5770 mono_mb_emit_ldloc_addr (mb, conv_arg);
5772 mono_mb_emit_ldloc (mb, conv_arg);
5775 case MARSHAL_ACTION_CONV_RESULT: {
5776 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5777 mono_mb_emit_exception_marshal_directive (mb, msg);
5781 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5782 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5785 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5787 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5789 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5793 mono_mb_emit_ldarg (mb, argnum);
5795 mono_mb_emit_ldarg_addr (mb, argnum);
5796 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5797 mono_mb_emit_stloc (mb, conv_arg);
5801 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5802 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5803 mono_mb_emit_ldloc (mb, conv_arg);
5804 mono_mb_emit_ldarg (mb, argnum);
5805 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5810 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5811 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5812 mono_mb_emit_exception_marshal_directive (mb, msg);
5817 g_assert_not_reached ();
5823 #endif /* DISABLE_COM */
5824 #endif /* DISABLE_JIT */
5827 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5829 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5830 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5832 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5834 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5846 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5847 MonoMarshalSpec *spec,
5848 int conv_arg, MonoType **conv_arg_type,
5849 MarshalAction action)
5853 case MARSHAL_ACTION_CONV_IN:
5854 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5856 case MARSHAL_ACTION_MANAGED_CONV_IN:
5857 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5861 MonoMethodBuilder *mb = m->mb;
5862 MonoClass *klass = mono_class_from_mono_type (t);
5863 gboolean need_convert, need_free;
5864 MonoMarshalNative encoding;
5866 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5869 case MARSHAL_ACTION_CONV_IN:
5870 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5871 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5873 if (klass->element_class->blittable) {
5874 mono_mb_emit_ldarg (mb, argnum);
5876 mono_mb_emit_byte (mb, CEE_LDIND_I);
5877 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5878 mono_mb_emit_stloc (mb, conv_arg);
5881 guint32 label1, label2, label3;
5882 int index_var, src_var, dest_ptr, esize;
5883 MonoMarshalConv conv;
5884 gboolean is_string = FALSE;
5886 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5888 eklass = klass->element_class;
5890 if (eklass == mono_defaults.string_class) {
5892 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5894 else if (eklass == mono_defaults.stringbuilder_class) {
5896 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5901 if (is_string && conv == -1) {
5902 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5903 mono_mb_emit_exception_marshal_directive (mb, msg);
5907 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5908 mono_mb_emit_ldarg (mb, argnum);
5910 mono_mb_emit_byte (mb, CEE_LDIND_I);
5911 mono_mb_emit_stloc (mb, src_var);
5914 mono_mb_emit_ldloc (mb, src_var);
5915 mono_mb_emit_stloc (mb, conv_arg);
5916 mono_mb_emit_ldloc (mb, src_var);
5917 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5920 esize = sizeof (gpointer);
5921 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5922 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5924 esize = mono_class_native_size (eklass, NULL);
5926 /* allocate space for the native struct and store the address */
5927 mono_mb_emit_icon (mb, esize);
5928 mono_mb_emit_ldloc (mb, src_var);
5929 mono_mb_emit_byte (mb, CEE_LDLEN);
5931 if (eklass == mono_defaults.string_class) {
5932 /* Make the array bigger for the terminating null */
5933 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5934 mono_mb_emit_byte (mb, CEE_ADD);
5936 mono_mb_emit_byte (mb, CEE_MUL);
5937 mono_mb_emit_byte (mb, CEE_PREFIX1);
5938 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5939 mono_mb_emit_stloc (mb, conv_arg);
5941 mono_mb_emit_ldloc (mb, conv_arg);
5942 mono_mb_emit_stloc (mb, dest_ptr);
5944 /* Emit marshalling loop */
5945 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5946 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5947 mono_mb_emit_stloc (mb, index_var);
5948 label2 = mono_mb_get_label (mb);
5949 mono_mb_emit_ldloc (mb, index_var);
5950 mono_mb_emit_ldloc (mb, src_var);
5951 mono_mb_emit_byte (mb, CEE_LDLEN);
5952 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5954 /* Emit marshalling code */
5957 mono_mb_emit_ldloc (mb, dest_ptr);
5958 mono_mb_emit_ldloc (mb, src_var);
5959 mono_mb_emit_ldloc (mb, index_var);
5960 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5961 mono_mb_emit_icall (mb, conv_to_icall (conv));
5962 mono_mb_emit_byte (mb, CEE_STIND_I);
5964 /* set the src_ptr */
5965 mono_mb_emit_ldloc (mb, src_var);
5966 mono_mb_emit_ldloc (mb, index_var);
5967 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5968 mono_mb_emit_stloc (mb, 0);
5971 mono_mb_emit_ldloc (mb, dest_ptr);
5972 mono_mb_emit_stloc (mb, 1);
5974 /* emit valuetype conversion code */
5975 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5978 mono_mb_emit_add_to_local (mb, index_var, 1);
5979 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5981 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5983 mono_mb_patch_branch (mb, label3);
5985 if (eklass == mono_defaults.string_class) {
5986 /* Null terminate */
5987 mono_mb_emit_ldloc (mb, dest_ptr);
5988 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5989 mono_mb_emit_byte (mb, CEE_STIND_REF);
5992 mono_mb_patch_branch (mb, label1);
5997 case MARSHAL_ACTION_CONV_OUT:
5998 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5999 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);
6000 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6003 if (need_convert || need_free) {
6004 /* FIXME: Optimize blittable case */
6006 guint32 label1, label2, label3;
6007 int index_var, src_ptr, loc, esize;
6009 eklass = klass->element_class;
6010 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6011 esize = sizeof (gpointer);
6012 else if (eklass == mono_defaults.char_class)
6013 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6015 esize = mono_class_native_size (eklass, NULL);
6016 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6017 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6020 mono_mb_emit_ldarg (mb, argnum);
6022 mono_mb_emit_byte (mb, CEE_LDIND_I);
6023 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6025 mono_mb_emit_ldloc (mb, conv_arg);
6026 mono_mb_emit_stloc (mb, src_ptr);
6028 /* Emit marshalling loop */
6029 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6030 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6031 mono_mb_emit_stloc (mb, index_var);
6032 label2 = mono_mb_get_label (mb);
6033 mono_mb_emit_ldloc (mb, index_var);
6034 mono_mb_emit_ldarg (mb, argnum);
6036 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6037 mono_mb_emit_byte (mb, CEE_LDLEN);
6038 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6040 /* Emit marshalling code */
6042 if (eklass == mono_defaults.stringbuilder_class) {
6043 gboolean need_free2;
6044 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6046 g_assert (conv != -1);
6049 mono_mb_emit_ldarg (mb, argnum);
6051 mono_mb_emit_byte (mb, CEE_LDIND_I);
6052 mono_mb_emit_ldloc (mb, index_var);
6053 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6056 mono_mb_emit_ldloc (mb, src_ptr);
6057 mono_mb_emit_byte (mb, CEE_LDIND_I);
6059 mono_mb_emit_icall (mb, conv_to_icall (conv));
6063 mono_mb_emit_ldloc (mb, src_ptr);
6064 mono_mb_emit_byte (mb, CEE_LDIND_I);
6066 mono_mb_emit_icall (mb, mono_marshal_free);
6069 else if (eklass == mono_defaults.string_class) {
6072 mono_mb_emit_ldloc (mb, src_ptr);
6073 mono_mb_emit_byte (mb, CEE_LDIND_I);
6075 mono_mb_emit_icall (mb, mono_marshal_free);
6080 /* set the src_ptr */
6081 mono_mb_emit_ldloc (mb, src_ptr);
6082 mono_mb_emit_stloc (mb, 0);
6085 mono_mb_emit_ldarg (mb, argnum);
6087 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6088 mono_mb_emit_ldloc (mb, index_var);
6089 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6090 mono_mb_emit_stloc (mb, 1);
6092 /* emit valuetype conversion code */
6093 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6097 mono_mb_emit_ldloc (mb, src_ptr);
6098 mono_mb_emit_stloc (mb, loc);
6099 mono_mb_emit_ldloc (mb, loc);
6101 emit_struct_free (mb, eklass, loc);
6105 mono_mb_emit_add_to_local (mb, index_var, 1);
6106 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6108 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6110 mono_mb_patch_branch (mb, label1);
6111 mono_mb_patch_branch (mb, label3);
6114 if (klass->element_class->blittable) {
6115 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6117 mono_mb_emit_ldarg (mb, argnum);
6118 mono_mb_emit_ldloc (mb, conv_arg);
6119 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6124 case MARSHAL_ACTION_PUSH:
6126 mono_mb_emit_ldloc_addr (mb, conv_arg);
6128 mono_mb_emit_ldloc (mb, conv_arg);
6131 case MARSHAL_ACTION_CONV_RESULT:
6132 /* fixme: we need conversions here */
6133 mono_mb_emit_stloc (mb, 3);
6136 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6138 guint32 label1, label2, label3;
6139 int index_var, src_ptr, loc, esize, param_num, num_elem;
6140 MonoMarshalConv conv;
6141 gboolean is_string = FALSE;
6143 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6144 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6147 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6152 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6153 mono_mb_emit_exception_marshal_directive (mb, msg);
6156 if (spec->native != MONO_NATIVE_LPARRAY) {
6157 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6158 mono_mb_emit_exception_marshal_directive (mb, msg);
6162 /* FIXME: t is from the method which is wrapped, not the delegate type */
6163 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6165 param_num = spec->data.array_data.param_num;
6166 num_elem = spec->data.array_data.num_elem;
6167 if (spec->data.array_data.elem_mult == 0)
6168 /* param_num is not specified */
6171 if (param_num == -1) {
6172 if (num_elem <= 0) {
6173 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6174 mono_mb_emit_exception_marshal_directive (mb, msg);
6179 /* FIXME: Optimize blittable case */
6181 eklass = klass->element_class;
6182 if (eklass == mono_defaults.string_class) {
6184 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6186 else if (eklass == mono_defaults.stringbuilder_class) {
6188 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6193 mono_marshal_load_type_info (eklass);
6196 esize = sizeof (gpointer);
6198 esize = mono_class_native_size (eklass, NULL);
6199 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6200 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6202 mono_mb_emit_byte (mb, CEE_LDNULL);
6203 mono_mb_emit_stloc (mb, conv_arg);
6205 /* Check param index */
6206 if (param_num != -1) {
6207 if (param_num >= m->sig->param_count) {
6208 char *msg = g_strdup ("Array size control parameter index is out of range.");
6209 mono_mb_emit_exception_marshal_directive (mb, msg);
6212 switch (m->sig->params [param_num]->type) {
6225 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6226 mono_mb_emit_exception_marshal_directive (mb, msg);
6233 mono_mb_emit_ldarg (mb, argnum);
6234 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6236 mono_mb_emit_ldarg (mb, argnum);
6237 mono_mb_emit_stloc (mb, src_ptr);
6239 /* Create managed array */
6241 * The LPArray marshalling spec says that sometimes param_num starts
6242 * from 1, sometimes it starts from 0. But MS seems to allways start
6246 if (param_num == -1) {
6247 mono_mb_emit_icon (mb, num_elem);
6249 mono_mb_emit_ldarg (mb, param_num);
6251 mono_mb_emit_icon (mb, num_elem);
6252 mono_mb_emit_byte (mb, CEE_ADD);
6254 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6257 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6258 mono_mb_emit_stloc (mb, conv_arg);
6260 if (eklass->blittable) {
6261 mono_mb_emit_ldloc (mb, conv_arg);
6262 mono_mb_emit_byte (mb, CEE_CONV_I);
6263 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6264 mono_mb_emit_byte (mb, CEE_ADD);
6265 mono_mb_emit_ldarg (mb, argnum);
6266 mono_mb_emit_ldloc (mb, conv_arg);
6267 mono_mb_emit_byte (mb, CEE_LDLEN);
6268 mono_mb_emit_icon (mb, esize);
6269 mono_mb_emit_byte (mb, CEE_MUL);
6270 mono_mb_emit_byte (mb, CEE_PREFIX1);
6271 mono_mb_emit_byte (mb, CEE_CPBLK);
6275 /* Emit marshalling loop */
6276 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6277 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6278 mono_mb_emit_stloc (mb, index_var);
6279 label2 = mono_mb_get_label (mb);
6280 mono_mb_emit_ldloc (mb, index_var);
6281 mono_mb_emit_ldloc (mb, conv_arg);
6282 mono_mb_emit_byte (mb, CEE_LDLEN);
6283 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6285 /* Emit marshalling code */
6287 g_assert (conv != -1);
6289 mono_mb_emit_ldloc (mb, conv_arg);
6290 mono_mb_emit_ldloc (mb, index_var);
6292 mono_mb_emit_ldloc (mb, src_ptr);
6293 mono_mb_emit_byte (mb, CEE_LDIND_I);
6295 mono_mb_emit_icall (mb, conv_to_icall (conv));
6296 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6299 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6300 mono_mb_emit_exception_marshal_directive (mb, msg);
6304 mono_mb_emit_add_to_local (mb, index_var, 1);
6305 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6307 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6309 mono_mb_patch_branch (mb, label1);
6310 mono_mb_patch_branch (mb, label3);
6314 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6316 guint32 label1, label2, label3;
6317 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6318 MonoMarshalConv conv;
6319 gboolean is_string = FALSE;
6322 /* Already handled in CONV_IN */
6325 /* These are already checked in CONV_IN */
6326 g_assert (!t->byref);
6327 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6328 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6330 param_num = spec->data.array_data.param_num;
6331 num_elem = spec->data.array_data.num_elem;
6333 if (spec->data.array_data.elem_mult == 0)
6334 /* param_num is not specified */
6337 if (param_num == -1) {
6338 if (num_elem <= 0) {
6339 g_assert_not_reached ();
6343 /* FIXME: Optimize blittable case */
6345 eklass = klass->element_class;
6346 if (eklass == mono_defaults.string_class) {
6348 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6350 else if (eklass == mono_defaults.stringbuilder_class) {
6352 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6357 mono_marshal_load_type_info (eklass);
6360 esize = sizeof (gpointer);
6362 esize = mono_class_native_size (eklass, NULL);
6364 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6365 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6368 mono_mb_emit_ldloc (mb, conv_arg);
6369 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6371 mono_mb_emit_ldarg (mb, argnum);
6372 mono_mb_emit_stloc (mb, dest_ptr);
6374 if (eklass->blittable) {
6376 mono_mb_emit_ldarg (mb, argnum);
6378 mono_mb_emit_ldloc (mb, conv_arg);
6379 mono_mb_emit_byte (mb, CEE_CONV_I);
6380 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6381 mono_mb_emit_byte (mb, CEE_ADD);
6383 mono_mb_emit_ldloc (mb, conv_arg);
6384 mono_mb_emit_byte (mb, CEE_LDLEN);
6385 mono_mb_emit_icon (mb, esize);
6386 mono_mb_emit_byte (mb, CEE_MUL);
6387 mono_mb_emit_byte (mb, CEE_PREFIX1);
6388 mono_mb_emit_byte (mb, CEE_CPBLK);
6392 /* Emit marshalling loop */
6393 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6394 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6395 mono_mb_emit_stloc (mb, index_var);
6396 label2 = mono_mb_get_label (mb);
6397 mono_mb_emit_ldloc (mb, index_var);
6398 mono_mb_emit_ldloc (mb, conv_arg);
6399 mono_mb_emit_byte (mb, CEE_LDLEN);
6400 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6402 /* Emit marshalling code */
6404 g_assert (conv != -1);
6407 mono_mb_emit_ldloc (mb, dest_ptr);
6410 mono_mb_emit_ldloc (mb, conv_arg);
6411 mono_mb_emit_ldloc (mb, index_var);
6413 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6415 mono_mb_emit_icall (mb, conv_to_icall (conv));
6416 mono_mb_emit_byte (mb, CEE_STIND_I);
6419 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6420 mono_mb_emit_exception_marshal_directive (mb, msg);
6424 mono_mb_emit_add_to_local (mb, index_var, 1);
6425 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6427 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6429 mono_mb_patch_branch (mb, label1);
6430 mono_mb_patch_branch (mb, label3);
6434 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6436 guint32 label1, label2, label3;
6437 int index_var, src, dest, esize;
6438 MonoMarshalConv conv = -1;
6439 gboolean is_string = FALSE;
6441 g_assert (!t->byref);
6443 eklass = klass->element_class;
6445 mono_marshal_load_type_info (eklass);
6447 if (eklass == mono_defaults.string_class) {
6449 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6452 g_assert_not_reached ();
6456 esize = sizeof (gpointer);
6457 else if (eklass == mono_defaults.char_class)
6458 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6460 esize = mono_class_native_size (eklass, NULL);
6462 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6463 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6465 mono_mb_emit_stloc (mb, src);
6466 mono_mb_emit_ldloc (mb, src);
6467 mono_mb_emit_stloc (mb, 3);
6469 /* Check for null */
6470 mono_mb_emit_ldloc (mb, src);
6471 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6473 /* Allocate native array */
6474 mono_mb_emit_icon (mb, esize);
6475 mono_mb_emit_ldloc (mb, src);
6476 mono_mb_emit_byte (mb, CEE_LDLEN);
6478 if (eklass == mono_defaults.string_class) {
6479 /* Make the array bigger for the terminating null */
6480 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6481 mono_mb_emit_byte (mb, CEE_ADD);
6483 mono_mb_emit_byte (mb, CEE_MUL);
6484 mono_mb_emit_icall (mb, mono_marshal_alloc);
6485 mono_mb_emit_stloc (mb, dest);
6486 mono_mb_emit_ldloc (mb, dest);
6487 mono_mb_emit_stloc (mb, 3);
6489 /* Emit marshalling loop */
6490 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6491 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6492 mono_mb_emit_stloc (mb, index_var);
6493 label2 = mono_mb_get_label (mb);
6494 mono_mb_emit_ldloc (mb, index_var);
6495 mono_mb_emit_ldloc (mb, src);
6496 mono_mb_emit_byte (mb, CEE_LDLEN);
6497 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6499 /* Emit marshalling code */
6501 g_assert (conv != -1);
6504 mono_mb_emit_ldloc (mb, dest);
6507 mono_mb_emit_ldloc (mb, src);
6508 mono_mb_emit_ldloc (mb, index_var);
6510 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6512 mono_mb_emit_icall (mb, conv_to_icall (conv));
6513 mono_mb_emit_byte (mb, CEE_STIND_I);
6516 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6517 mono_mb_emit_exception_marshal_directive (mb, msg);
6521 mono_mb_emit_add_to_local (mb, index_var, 1);
6522 mono_mb_emit_add_to_local (mb, dest, esize);
6524 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6526 mono_mb_patch_branch (mb, label3);
6527 mono_mb_patch_branch (mb, label1);
6531 g_assert_not_reached ();
6538 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6541 return &mono_defaults.int32_class->byval_arg;
6543 switch (spec->native) {
6544 case MONO_NATIVE_I1:
6545 case MONO_NATIVE_U1:
6546 return &mono_defaults.byte_class->byval_arg;
6547 case MONO_NATIVE_VARIANTBOOL:
6548 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6549 return &mono_defaults.int16_class->byval_arg;
6550 case MONO_NATIVE_BOOLEAN:
6551 return &mono_defaults.int32_class->byval_arg;
6553 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6554 return &mono_defaults.int32_class->byval_arg;
6560 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6562 MonoClass* conv_arg_class = mono_defaults.int32_class;
6564 switch (spec->native) {
6565 case MONO_NATIVE_I1:
6566 case MONO_NATIVE_U1:
6567 conv_arg_class = mono_defaults.byte_class;
6568 if (ldop) *ldop = CEE_LDIND_I1;
6570 case MONO_NATIVE_VARIANTBOOL:
6571 conv_arg_class = mono_defaults.int16_class;
6572 if (ldop) *ldop = CEE_LDIND_I2;
6574 case MONO_NATIVE_BOOLEAN:
6577 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6580 return conv_arg_class;
6584 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6585 MonoMarshalSpec *spec,
6586 int conv_arg, MonoType **conv_arg_type,
6587 MarshalAction action)
6591 case MARSHAL_ACTION_CONV_IN:
6593 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6595 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6598 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6599 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6601 *conv_arg_type = &conv_arg_class->this_arg;
6603 *conv_arg_type = &conv_arg_class->byval_arg;
6609 MonoMethodBuilder *mb = m->mb;
6612 case MARSHAL_ACTION_CONV_IN: {
6613 MonoType *local_type;
6615 guint8 ldc_op = CEE_LDC_I4_1;
6617 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6619 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6621 *conv_arg_type = local_type;
6622 conv_arg = mono_mb_add_local (mb, local_type);
6624 mono_mb_emit_ldarg (mb, argnum);
6626 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6627 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6628 mono_mb_emit_byte (mb, ldc_op);
6629 mono_mb_emit_stloc (mb, conv_arg);
6630 mono_mb_patch_branch (mb, label_false);
6635 case MARSHAL_ACTION_CONV_OUT:
6637 int label_false, label_end;
6641 mono_mb_emit_ldarg (mb, argnum);
6642 mono_mb_emit_ldloc (mb, conv_arg);
6644 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6645 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6647 label_end = mono_mb_emit_branch (mb, CEE_BR);
6648 mono_mb_patch_branch (mb, label_false);
6649 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6650 mono_mb_patch_branch (mb, label_end);
6652 mono_mb_emit_byte (mb, CEE_STIND_I1);
6656 case MARSHAL_ACTION_PUSH:
6658 mono_mb_emit_ldloc_addr (mb, conv_arg);
6660 mono_mb_emit_ldloc (mb, conv_arg);
6662 mono_mb_emit_ldarg (mb, argnum);
6665 case MARSHAL_ACTION_CONV_RESULT:
6666 /* maybe we need to make sure that it fits within 8 bits */
6667 mono_mb_emit_stloc (mb, 3);
6670 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6671 MonoClass* conv_arg_class = mono_defaults.int32_class;
6672 guint8 ldop = CEE_LDIND_I4;
6673 int label_null, label_false;
6675 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6676 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6679 *conv_arg_type = &conv_arg_class->this_arg;
6681 *conv_arg_type = &conv_arg_class->byval_arg;
6684 mono_mb_emit_ldarg (mb, argnum);
6688 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6689 mono_mb_emit_ldarg (mb, argnum);
6690 mono_mb_emit_byte (mb, ldop);
6694 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6695 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6696 mono_mb_emit_stloc (mb, conv_arg);
6697 mono_mb_patch_branch (mb, label_false);
6700 mono_mb_patch_branch (mb, label_null);
6704 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6705 guint8 stop = CEE_STIND_I4;
6706 guint8 ldc_op = CEE_LDC_I4_1;
6707 int label_null,label_false, label_end;;
6712 switch (spec->native) {
6713 case MONO_NATIVE_I1:
6714 case MONO_NATIVE_U1:
6715 stop = CEE_STIND_I1;
6717 case MONO_NATIVE_VARIANTBOOL:
6718 stop = CEE_STIND_I2;
6719 ldc_op = CEE_LDC_I4_M1;
6727 mono_mb_emit_ldarg (mb, argnum);
6728 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6730 mono_mb_emit_ldarg (mb, argnum);
6731 mono_mb_emit_ldloc (mb, conv_arg);
6733 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6734 mono_mb_emit_byte (mb, ldc_op);
6735 label_end = mono_mb_emit_branch (mb, CEE_BR);
6737 mono_mb_patch_branch (mb, label_false);
6738 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6739 mono_mb_patch_branch (mb, label_end);
6741 mono_mb_emit_byte (mb, stop);
6742 mono_mb_patch_branch (mb, label_null);
6747 g_assert_not_reached ();
6754 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6755 MonoMarshalSpec *spec, int conv_arg,
6756 MonoType **conv_arg_type, MarshalAction action)
6759 MonoMethodBuilder *mb = m->mb;
6762 case MARSHAL_ACTION_CONV_IN:
6763 /* MS seems to allow this in some cases, ie. bxc #158 */
6765 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6766 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6767 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6772 case MARSHAL_ACTION_PUSH:
6773 mono_mb_emit_ldarg (mb, argnum);
6776 case MARSHAL_ACTION_CONV_RESULT:
6777 /* no conversions necessary */
6778 mono_mb_emit_stloc (mb, 3);
6789 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6790 MonoMarshalSpec *spec, int conv_arg,
6791 MonoType **conv_arg_type, MarshalAction action)
6794 MonoMethodBuilder *mb = m->mb;
6797 case MARSHAL_ACTION_PUSH:
6798 /* fixme: dont know how to marshal that. We cant simply
6799 * convert it to a one byte UTF8 character, because an
6800 * unicode character may need more that one byte in UTF8 */
6801 mono_mb_emit_ldarg (mb, argnum);
6804 case MARSHAL_ACTION_CONV_RESULT:
6805 /* fixme: we need conversions here */
6806 mono_mb_emit_stloc (mb, 3);
6817 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6818 MonoMarshalSpec *spec, int conv_arg,
6819 MonoType **conv_arg_type, MarshalAction action)
6822 MonoMethodBuilder *mb = m->mb;
6825 case MARSHAL_ACTION_PUSH:
6826 mono_mb_emit_ldarg (mb, argnum);
6829 case MARSHAL_ACTION_CONV_RESULT:
6830 /* no conversions necessary */
6831 mono_mb_emit_stloc (mb, 3);
6842 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6843 MonoMarshalSpec *spec, int conv_arg,
6844 MonoType **conv_arg_type, MarshalAction action)
6846 /* Ensure that we have marshalling info for this param */
6847 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6849 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6850 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6852 if (spec && spec->native == MONO_NATIVE_ASANY)
6853 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6856 case MONO_TYPE_VALUETYPE:
6857 if (t->data.klass == mono_defaults.handleref_class)
6858 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6860 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6861 case MONO_TYPE_STRING:
6862 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6863 case MONO_TYPE_CLASS:
6864 case MONO_TYPE_OBJECT:
6866 if (spec && spec->native == MONO_NATIVE_STRUCT)
6867 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6869 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6870 spec->native == MONO_NATIVE_IDISPATCH ||
6871 spec->native == MONO_NATIVE_INTERFACE))
6872 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6873 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6874 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6875 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6876 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6879 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6880 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6881 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6883 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6884 case MONO_TYPE_ARRAY:
6885 case MONO_TYPE_SZARRAY:
6886 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6887 case MONO_TYPE_BOOLEAN:
6888 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6890 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6891 case MONO_TYPE_CHAR:
6892 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6905 case MONO_TYPE_FNPTR:
6906 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6907 case MONO_TYPE_GENERICINST:
6908 if (mono_type_generic_inst_is_valuetype (t))
6909 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6911 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6918 * mono_marshal_emit_native_wrapper:
6919 * @image: the image to use for looking up custom marshallers
6920 * @sig: The signature of the native function
6921 * @piinfo: Marshalling information
6922 * @mspecs: Marshalling information
6923 * @aot: whenever the created method will be compiled by the AOT compiler
6924 * @method: if non-NULL, the pinvoke method to call
6925 * @check_exceptions: Whenever to check for pending exceptions after the native call
6926 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6928 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6931 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)
6933 EmitMarshalContext m;
6934 MonoMethodSignature *csig;
6936 int i, argnum, *tmp_locals;
6937 int type, param_shift = 0;
6938 static MonoMethodSignature *get_last_error_sig = NULL;
6943 /* we copy the signature, so that we can set pinvoke to 0 */
6945 /* The function address is passed as the first argument */
6946 g_assert (!sig->hasthis);
6949 csig = signature_dup (mb->method->klass->image, sig);
6957 /* we allocate local for use with emit_struct_conv() */
6958 /* allocate local 0 (pointer) src_ptr */
6959 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6960 /* allocate local 1 (pointer) dst_ptr */
6961 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6962 /* allocate local 2 (boolean) delete_old */
6963 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6965 /* delete_old = FALSE */
6966 mono_mb_emit_icon (mb, 0);
6967 mono_mb_emit_stloc (mb, 2);
6969 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6970 /* allocate local 3 to store the return value */
6971 mono_mb_add_local (mb, sig->ret);
6974 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6975 /* Return type custom marshaling */
6977 * Since we can't determine the return type of the unmanaged function,
6978 * we assume it returns a pointer, and pass that pointer to
6979 * MarshalNativeToManaged.
6981 csig->ret = &mono_defaults.int_class->byval_arg;
6984 /* we first do all conversions */
6985 tmp_locals = alloca (sizeof (int) * sig->param_count);
6986 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6988 for (i = 0; i < sig->param_count; i ++) {
6989 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6992 /* push all arguments */
6995 mono_mb_emit_byte (mb, CEE_LDARG_0);
6997 for (i = 0; i < sig->param_count; i++) {
6998 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7001 /* call the native method */
7003 mono_mb_emit_byte (mb, CEE_LDARG_0);
7004 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7005 mono_mb_emit_byte (mb, CEE_LDIND_I);
7006 mono_mb_emit_calli (mb, csig);
7007 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7009 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7011 g_assert_not_reached ();
7016 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7017 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7018 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7019 mono_mb_emit_calli (mb, csig);
7021 mono_mb_emit_native_call (mb, csig, func);
7025 /* Set LastError if needed */
7026 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7027 if (!get_last_error_sig) {
7028 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7029 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7030 get_last_error_sig->pinvoke = 1;
7035 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7036 * clobber its value.
7038 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7039 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7041 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7045 /* convert the result */
7046 if (!sig->ret->byref) {
7047 MonoMarshalSpec *spec = mspecs [0];
7048 type = sig->ret->type;
7050 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7051 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7056 case MONO_TYPE_VOID:
7058 case MONO_TYPE_VALUETYPE:
7059 klass = sig->ret->data.klass;
7060 if (klass->enumtype) {
7061 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7064 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7078 case MONO_TYPE_FNPTR:
7079 case MONO_TYPE_STRING:
7080 case MONO_TYPE_CLASS:
7081 case MONO_TYPE_OBJECT:
7082 case MONO_TYPE_BOOLEAN:
7083 case MONO_TYPE_ARRAY:
7084 case MONO_TYPE_SZARRAY:
7085 case MONO_TYPE_CHAR:
7087 case MONO_TYPE_GENERICINST:
7088 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7090 case MONO_TYPE_TYPEDBYREF:
7092 g_warning ("return type 0x%02x unknown", sig->ret->type);
7093 g_assert_not_reached ();
7097 mono_mb_emit_stloc (mb, 3);
7101 * Need to call this after converting the result since MONO_VTADDR needs
7102 * to be adjacent to the call instruction.
7104 if (check_exceptions)
7105 emit_thread_interrupt_checkpoint (mb);
7107 /* we need to convert byref arguments back and free string arrays */
7108 for (i = 0; i < sig->param_count; i++) {
7109 MonoType *t = sig->params [i];
7110 MonoMarshalSpec *spec = mspecs [i + 1];
7112 argnum = i + param_shift;
7114 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7115 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7120 case MONO_TYPE_STRING:
7121 case MONO_TYPE_VALUETYPE:
7122 case MONO_TYPE_CLASS:
7123 case MONO_TYPE_OBJECT:
7124 case MONO_TYPE_SZARRAY:
7125 case MONO_TYPE_BOOLEAN:
7126 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7131 if (!MONO_TYPE_IS_VOID(sig->ret))
7132 mono_mb_emit_ldloc (mb, 3);
7134 mono_mb_emit_byte (mb, CEE_RET);
7136 #endif /* DISABLE_JIT */
7139 G_GNUC_UNUSED static void
7140 code_for (MonoMethod *method) {
7141 MonoMethodHeader *header = mono_method_get_header (method);
7142 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));
7146 * mono_marshal_get_native_wrapper:
7147 * @method: The MonoMethod to wrap.
7148 * @check_exceptions: Whenever to check for pending exceptions
7150 * generates IL code for the pinvoke wrapper (the generated method
7151 * calls the unmanaged code in piinfo->addr)
7152 * The wrapper info for the wrapper is a WrapperInfo structure.
7155 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7157 MonoMethodSignature *sig, *csig;
7158 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7159 MonoMethodBuilder *mb;
7160 MonoMarshalSpec **mspecs;
7163 gboolean pinvoke = FALSE;
7166 const char *exc_class = "MissingMethodException";
7167 const char *exc_arg = NULL;
7170 g_assert (method != NULL);
7171 g_assert (mono_method_signature (method)->pinvoke);
7174 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7176 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7177 if ((res = mono_marshal_find_in_cache (cache, method)))
7180 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7181 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7185 return mono_cominterop_get_native_wrapper (method);
7187 g_assert_not_reached ();
7191 sig = mono_method_signature (method);
7193 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7194 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7197 if (!piinfo->addr) {
7199 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7200 exc_arg = "Method contains unsupported native code";
7202 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7204 piinfo->addr = mono_lookup_internal_call (method);
7208 /* hack - redirect certain string constructors to CreateString */
7209 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7210 g_assert (!pinvoke);
7211 g_assert (method->string_ctor);
7212 g_assert (sig->hasthis);
7214 /* CreateString returns a value */
7215 csig = signature_dup (method->klass->image, sig);
7216 csig->ret = &mono_defaults.string_class->byval_arg;
7220 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7221 if (!strcmp ("CreateString", res->name) &&
7222 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7225 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7226 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7228 /* create a wrapper to preserve .ctor in stack trace */
7229 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7232 mono_mb_emit_byte (mb, CEE_LDARG_0);
7233 for (i = 1; i <= csig->param_count; i++)
7234 mono_mb_emit_ldarg (mb, i);
7235 mono_mb_emit_managed_call (mb, res, NULL);
7236 mono_mb_emit_byte (mb, CEE_RET);
7239 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7240 info->d.string_ctor.method = method;
7242 /* use native_wrapper_cache because internal calls are looked up there */
7243 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7244 csig->param_count + 1, info, NULL);
7251 /* exception will be thrown */
7252 piinfo->addr = NULL;
7253 g_warning ("cannot find CreateString for .ctor");
7256 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7258 mb->method->save_lmf = 1;
7261 * In AOT mode and embedding scenarios, it is possible that the icall is not
7262 * registered in the runtime doing the AOT compilation.
7264 if (!piinfo->addr && !aot) {
7266 mono_mb_emit_exception (mb, exc_class, exc_arg);
7268 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7269 info->d.managed_to_native.method = method;
7271 csig = signature_dup (method->klass->image, sig);
7273 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7274 csig->param_count + 16, info, NULL);
7280 /* internal calls: we simply push all arguments and call the method (no conversions) */
7281 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7283 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7285 csig = signature_dup (method->klass->image, sig);
7287 /* hack - string constructors returns a value */
7288 if (method->string_ctor)
7289 csig->ret = &mono_defaults.string_class->byval_arg;
7296 * Add a null check since public icalls can be called with 'call' which
7297 * does no such check.
7299 mono_mb_emit_byte (mb, CEE_LDARG_0);
7300 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7301 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7302 mono_mb_patch_branch (mb, pos);
7304 mono_mb_emit_byte (mb, CEE_LDARG_0);
7307 for (i = 0; i < sig->param_count; i++)
7308 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7311 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7312 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7313 mono_mb_emit_calli (mb, csig);
7315 g_assert (piinfo->addr);
7316 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7318 if (check_exceptions)
7319 emit_thread_interrupt_checkpoint (mb);
7320 mono_mb_emit_byte (mb, CEE_RET);
7322 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7323 info->d.managed_to_native.method = method;
7325 csig = signature_dup (method->klass->image, csig);
7327 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7336 g_assert (piinfo->addr);
7339 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7340 mono_method_get_marshal_info (method, mspecs);
7342 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7344 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7345 info->d.managed_to_native.method = method;
7347 csig = signature_dup (method->klass->image, sig);
7349 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7354 for (i = sig->param_count; i >= 0; i--)
7356 mono_metadata_free_marshal_spec (mspecs [i]);
7360 /* code_for (res); */
7366 * mono_marshal_get_native_func_wrapper:
7367 * @image: The image to use for memory allocation and for looking up custom marshallers.
7368 * @sig: The signature of the function
7369 * @func: The native function to wrap
7371 * Returns a wrapper method around native functions, similar to the pinvoke
7375 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7376 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7378 MonoMethodSignature *csig;
7380 SignaturePointerPair key, *new_key;
7381 MonoMethodBuilder *mb;
7390 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7391 if ((res = mono_marshal_find_in_cache (cache, &key)))
7394 name = g_strdup_printf ("wrapper_native_%p", func);
7395 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7396 mb->method->save_lmf = 1;
7399 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7402 csig = signature_dup (image, sig);
7405 new_key = g_new (SignaturePointerPair,1);
7406 new_key->sig = csig;
7407 new_key->pointer = func;
7409 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7415 mono_marshal_set_wrapper_info (res, NULL);
7421 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7425 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7427 MonoMethodSignature *sig, *csig;
7428 MonoMethodBuilder *mb;
7433 MonoMethodPInvoke mpiinfo;
7434 MonoMethodPInvoke *piinfo = &mpiinfo;
7435 MonoMarshalSpec **mspecs;
7436 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7437 MonoImage *image = invoke->klass->image;
7440 // FIXME: include UnmanagedFunctionPointerAttribute info
7443 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7445 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7446 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7449 memset (&mpiinfo, 0, sizeof (mpiinfo));
7450 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7452 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7453 mono_method_get_marshal_info (invoke, mspecs);
7454 /* Freed below so don't alloc from mempool */
7455 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7458 name = g_strdup_printf ("wrapper_aot_native");
7459 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7460 mb->method->save_lmf = 1;
7463 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7466 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7467 info->d.managed_to_native.method = invoke;
7469 g_assert (!sig->hasthis);
7470 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7472 res = mono_mb_create_and_cache_full (cache, invoke,
7473 mb, csig, csig->param_count + 16,
7477 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7479 mono_metadata_free_marshal_spec (mspecs [i]);
7487 * mono_marshal_emit_managed_wrapper:
7489 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7490 * the delegate which wraps the managed method to be called. For closed delegates,
7491 * it could have fewer parameters than the method it wraps.
7492 * THIS_LOC is the memory location where the target of the delegate is stored.
7495 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7498 MonoMethodSignature *sig, *csig;
7504 /* we first do all conversions */
7505 for (i = 0; i < sig->param_count; i ++) {
7506 MonoType *t = sig->params [i];
7509 case MONO_TYPE_OBJECT:
7510 case MONO_TYPE_CLASS:
7511 case MONO_TYPE_VALUETYPE:
7512 case MONO_TYPE_ARRAY:
7513 case MONO_TYPE_SZARRAY:
7514 case MONO_TYPE_STRING:
7515 case MONO_TYPE_BOOLEAN:
7516 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7520 if (!sig->ret->byref) {
7521 switch (sig->ret->type) {
7522 case MONO_TYPE_STRING:
7523 csig->ret = &mono_defaults.int_class->byval_arg;
7530 MonoMethodSignature *sig, *csig;
7532 gboolean closed = FALSE;
7537 /* allocate local 0 (pointer) src_ptr */
7538 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7539 /* allocate local 1 (pointer) dst_ptr */
7540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7541 /* allocate local 2 (boolean) delete_old */
7542 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7544 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7545 /* Closed delegate */
7546 g_assert (sig->param_count == invoke_sig->param_count + 1);
7548 /* Use a new signature without the first argument */
7549 sig = mono_metadata_signature_dup (sig);
7550 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7551 sig->param_count --;
7554 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7555 /* allocate local 3 to store the return value */
7556 mono_mb_add_local (mb, sig->ret);
7559 mono_mb_emit_icon (mb, 0);
7560 mono_mb_emit_stloc (mb, 2);
7563 * Might need to attach the thread to the JIT or change the
7564 * domain for the callback.
7566 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7567 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7569 /* we first do all conversions */
7570 tmp_locals = alloca (sizeof (int) * sig->param_count);
7571 for (i = 0; i < sig->param_count; i ++) {
7572 MonoType *t = sig->params [i];
7575 case MONO_TYPE_OBJECT:
7576 case MONO_TYPE_CLASS:
7577 case MONO_TYPE_VALUETYPE:
7578 case MONO_TYPE_ARRAY:
7579 case MONO_TYPE_SZARRAY:
7580 case MONO_TYPE_STRING:
7581 case MONO_TYPE_BOOLEAN:
7582 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7591 emit_thread_interrupt_checkpoint (mb);
7594 if (target_handle) {
7595 mono_mb_emit_icon (mb, (gint32)target_handle);
7596 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7599 g_assert_not_reached ();
7601 } else if (closed) {
7602 mono_mb_emit_icon (mb, (gint32)target_handle);
7603 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7606 for (i = 0; i < sig->param_count; i++) {
7607 MonoType *t = sig->params [i];
7609 if (tmp_locals [i]) {
7611 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7613 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7616 mono_mb_emit_ldarg (mb, i);
7619 mono_mb_emit_managed_call (mb, method, NULL);
7621 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7622 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7623 } else if (!sig->ret->byref) {
7624 switch (sig->ret->type) {
7625 case MONO_TYPE_VOID:
7627 case MONO_TYPE_BOOLEAN:
7630 case MONO_TYPE_CHAR:
7642 case MONO_TYPE_OBJECT:
7643 mono_mb_emit_stloc (mb, 3);
7645 case MONO_TYPE_STRING:
7646 csig->ret = &mono_defaults.int_class->byval_arg;
7647 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7649 case MONO_TYPE_VALUETYPE:
7650 case MONO_TYPE_CLASS:
7651 case MONO_TYPE_SZARRAY:
7652 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7655 g_warning ("return type 0x%02x unknown", sig->ret->type);
7656 g_assert_not_reached ();
7659 mono_mb_emit_stloc (mb, 3);
7662 /* Convert byref arguments back */
7663 for (i = 0; i < sig->param_count; i ++) {
7664 MonoType *t = sig->params [i];
7665 MonoMarshalSpec *spec = mspecs [i + 1];
7667 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7668 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7670 else if (t->byref) {
7672 case MONO_TYPE_CLASS:
7673 case MONO_TYPE_VALUETYPE:
7674 case MONO_TYPE_OBJECT:
7675 case MONO_TYPE_STRING:
7676 case MONO_TYPE_BOOLEAN:
7677 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7681 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7682 /* The [Out] information is encoded in the delegate signature */
7684 case MONO_TYPE_SZARRAY:
7685 case MONO_TYPE_CLASS:
7686 case MONO_TYPE_VALUETYPE:
7687 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7690 g_assert_not_reached ();
7695 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7696 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7698 if (m->retobj_var) {
7699 mono_mb_emit_ldloc (mb, m->retobj_var);
7700 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7701 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7704 if (!MONO_TYPE_IS_VOID(sig->ret))
7705 mono_mb_emit_ldloc (mb, 3);
7706 mono_mb_emit_byte (mb, CEE_RET);
7715 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7717 MonoMethodSignature *sig;
7722 * Under windows, delegates passed to native code must use the STDCALL
7723 * calling convention.
7725 csig->call_convention = MONO_CALL_STDCALL;
7728 sig = mono_method_signature (method);
7730 /* Change default calling convention if needed */
7731 /* Why is this a modopt ? */
7732 if (sig->ret && sig->ret->num_mods) {
7733 for (i = 0; i < sig->ret->num_mods; ++i) {
7735 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7736 g_assert (mono_error_ok (&error));
7737 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7738 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7739 csig->call_convention = MONO_CALL_C;
7740 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7741 csig->call_convention = MONO_CALL_STDCALL;
7742 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7743 csig->call_convention = MONO_CALL_FASTCALL;
7744 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7745 csig->call_convention = MONO_CALL_THISCALL;
7752 * generates IL code to call managed methods from unmanaged code
7753 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7756 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7758 static MonoClass *UnmanagedFunctionPointerAttribute;
7759 MonoMethodSignature *sig, *csig, *invoke_sig;
7760 MonoMethodBuilder *mb;
7761 MonoMethod *res, *invoke;
7762 MonoMarshalSpec **mspecs;
7763 MonoMethodPInvoke piinfo;
7766 EmitMarshalContext m;
7768 g_assert (method != NULL);
7769 g_assert (!mono_method_signature (method)->pinvoke);
7772 * FIXME: Should cache the method+delegate type pair, since the same method
7773 * could be called with different delegates, thus different marshalling
7776 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7777 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7780 invoke = mono_get_delegate_invoke (delegate_klass);
7781 invoke_sig = mono_method_signature (invoke);
7783 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7784 mono_method_get_marshal_info (invoke, mspecs);
7786 sig = mono_method_signature (method);
7788 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7790 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7791 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7793 /* we copy the signature, so that we can modify it */
7795 /* Need to free this later */
7796 csig = mono_metadata_signature_dup (invoke_sig);
7798 csig = signature_dup (method->klass->image, invoke_sig);
7807 m.image = method->klass->image;
7809 mono_marshal_set_callconv_from_modopt (invoke, csig);
7811 /* Handle the UnmanagedFunctionPointerAttribute */
7812 if (!UnmanagedFunctionPointerAttribute)
7813 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7815 /* The attribute is only available in Net 2.0 */
7816 if (UnmanagedFunctionPointerAttribute) {
7817 MonoCustomAttrInfo *cinfo;
7818 MonoCustomAttrEntry *attr;
7821 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7822 * contents of the attribute without constructing it, as that might not be
7823 * possible when running in cross-compiling mode.
7825 cinfo = mono_custom_attrs_from_class (delegate_klass);
7828 for (i = 0; i < cinfo->num_attrs; ++i) {
7829 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7830 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7831 attr = &cinfo->attrs [i];
7837 MonoArray *typed_args, *named_args;
7838 CattrNamedArg *arginfo;
7842 MonoBoolean set_last_error = 0;
7843 MonoBoolean best_fit_mapping = 0;
7844 MonoBoolean throw_on_unmappable = 0;
7847 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7848 g_assert (mono_error_ok (&error));
7849 g_assert (mono_array_length (typed_args) == 1);
7852 o = mono_array_get (typed_args, MonoObject*, 0);
7853 call_conv = *(gint32*)mono_object_unbox (o);
7856 for (i = 0; i < mono_array_length (named_args); ++i) {
7857 CattrNamedArg *narg = &arginfo [i];
7859 o = mono_array_get (named_args, MonoObject*, i);
7861 g_assert (narg->field);
7862 if (!strcmp (narg->field->name, "CharSet")) {
7863 charset = *(gint32*)mono_object_unbox (o);
7864 } else if (!strcmp (narg->field->name, "SetLastError")) {
7865 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7866 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7867 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7868 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7869 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7871 g_assert_not_reached ();
7877 memset (&piinfo, 0, sizeof (piinfo));
7879 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7881 csig->call_convention = call_conv - 1;
7884 if (cinfo && !cinfo->cached)
7885 mono_custom_attrs_free (cinfo);
7888 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7890 if (!target_handle) {
7893 // FIXME: Associate it with the method+delegate_klass pair
7894 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7895 info->d.native_to_managed.method = method;
7896 info->d.native_to_managed.klass = delegate_klass;
7898 res = mono_mb_create_and_cache_full (cache, method,
7899 mb, csig, sig->param_count + 16,
7905 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7909 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7911 mono_metadata_free_marshal_spec (mspecs [i]);
7914 /* code_for (res); */
7920 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7923 MonoMethodSignature *sig;
7924 MonoMethodBuilder *mb;
7929 method = mono_get_method (image, token, NULL);
7932 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7933 MonoMethodSignature *csig;
7934 MonoMarshalSpec **mspecs;
7935 EmitMarshalContext m;
7937 sig = mono_method_signature (method);
7938 g_assert (!sig->hasthis);
7940 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7941 mono_method_get_marshal_info (method, mspecs);
7943 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7944 csig = signature_dup (image, sig);
7955 mono_marshal_set_callconv_from_modopt (method, csig);
7957 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7959 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7964 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7967 for (i = sig->param_count; i >= 0; i--)
7969 mono_metadata_free_marshal_spec (mspecs [i]);
7972 return mono_compile_method (method);
7975 sig = mono_method_signature (method);
7976 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7978 param_count = sig->param_count + sig->hasthis;
7980 for (i = 0; i < param_count; i++)
7981 mono_mb_emit_ldarg (mb, i);
7983 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7984 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7986 mono_mb_emit_op (mb, CEE_CALL, method);
7987 mono_mb_emit_byte (mb, CEE_RET);
7992 method = mono_mb_create (mb, sig, param_count, NULL);
7995 return mono_compile_method (method);
7999 * This does the equivalent of mono_object_castclass_with_cache.
8000 * The wrapper info for the wrapper is a WrapperInfo structure.
8003 mono_marshal_get_castclass_with_cache (void)
8005 static MonoMethod *cached;
8007 MonoMethodBuilder *mb;
8008 MonoMethodSignature *sig;
8009 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8015 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8016 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8017 sig->params [0] = &mono_defaults.object_class->byval_arg;
8018 sig->params [1] = &mono_defaults.int_class->byval_arg;
8019 sig->params [2] = &mono_defaults.int_class->byval_arg;
8020 sig->ret = &mono_defaults.object_class->byval_arg;
8024 /* allocate local 0 (pointer) obj_vtable */
8025 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8028 mono_mb_emit_ldarg (mb, 0);
8029 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8031 /*obj_vtable = obj->vtable;*/
8032 mono_mb_emit_ldarg (mb, 0);
8033 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8034 mono_mb_emit_byte (mb, CEE_LDIND_I);
8035 mono_mb_emit_stloc (mb, 0);
8038 mono_mb_emit_ldarg (mb, 2);
8039 mono_mb_emit_byte (mb, CEE_LDIND_I);
8040 mono_mb_emit_ldloc (mb, 0);
8042 /*if (*cache == obj_vtable)*/
8043 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8046 mono_mb_emit_ldarg (mb, 0);
8047 mono_mb_emit_byte (mb, CEE_RET);
8049 mono_mb_patch_branch (mb, cache_miss_pos);
8050 /*if (mono_object_isinst (obj, klass)) */
8051 mono_mb_emit_ldarg (mb, 0);
8052 mono_mb_emit_ldarg (mb, 1);
8053 mono_mb_emit_icall (mb, mono_object_isinst);
8054 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8056 /**cache = obj_vtable;*/
8057 mono_mb_emit_ldarg (mb, 2);
8058 mono_mb_emit_ldloc (mb, 0);
8059 mono_mb_emit_byte (mb, CEE_STIND_I);
8062 mono_mb_emit_ldarg (mb, 0);
8063 mono_mb_emit_byte (mb, CEE_RET);
8066 mono_mb_patch_branch (mb, invalid_cast_pos);
8067 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8070 mono_mb_patch_branch (mb, return_null_pos);
8071 mono_mb_emit_byte (mb, CEE_LDNULL);
8072 mono_mb_emit_byte (mb, CEE_RET);
8073 #endif /* DISABLE_JIT */
8075 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8076 res = mono_mb_create (mb, sig, 8, info);
8079 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8080 mono_free_method (res);
8081 mono_metadata_free_method_signature (sig);
8089 * This does the equivalent of mono_object_isinst_with_cache.
8090 * The wrapper info for the wrapper is a WrapperInfo structure.
8093 mono_marshal_get_isinst_with_cache (void)
8095 static MonoMethod *cached;
8097 MonoMethodBuilder *mb;
8098 MonoMethodSignature *sig;
8099 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8105 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8106 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8107 sig->params [0] = &mono_defaults.object_class->byval_arg;
8108 sig->params [1] = &mono_defaults.int_class->byval_arg;
8109 sig->params [2] = &mono_defaults.int_class->byval_arg;
8110 sig->ret = &mono_defaults.object_class->byval_arg;
8114 /* allocate local 0 (pointer) obj_vtable */
8115 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8116 /* allocate local 1 (pointer) cached_vtable */
8117 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8120 mono_mb_emit_ldarg (mb, 0);
8121 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8123 /*obj_vtable = obj->vtable;*/
8124 mono_mb_emit_ldarg (mb, 0);
8125 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8126 mono_mb_emit_byte (mb, CEE_LDIND_I);
8127 mono_mb_emit_stloc (mb, 0);
8129 /* cached_vtable = *cache*/
8130 mono_mb_emit_ldarg (mb, 2);
8131 mono_mb_emit_byte (mb, CEE_LDIND_I);
8132 mono_mb_emit_stloc (mb, 1);
8134 mono_mb_emit_ldloc (mb, 1);
8135 mono_mb_emit_byte (mb, CEE_LDC_I4);
8136 mono_mb_emit_i4 (mb, ~0x1);
8137 mono_mb_emit_byte (mb, CEE_CONV_U);
8138 mono_mb_emit_byte (mb, CEE_AND);
8139 mono_mb_emit_ldloc (mb, 0);
8140 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8141 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8143 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8144 mono_mb_emit_ldloc (mb, 1);
8145 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8146 mono_mb_emit_byte (mb, CEE_CONV_U);
8147 mono_mb_emit_byte (mb, CEE_AND);
8148 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8151 mono_mb_emit_ldarg (mb, 0);
8152 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8155 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8156 mono_mb_emit_byte (mb, CEE_LDNULL);
8158 mono_mb_patch_branch (mb, cache_hit_pos);
8159 mono_mb_emit_byte (mb, CEE_RET);
8161 mono_mb_patch_branch (mb, cache_miss_pos);
8162 /*if (mono_object_isinst (obj, klass)) */
8163 mono_mb_emit_ldarg (mb, 0);
8164 mono_mb_emit_ldarg (mb, 1);
8165 mono_mb_emit_icall (mb, mono_object_isinst);
8166 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8168 /**cache = obj_vtable;*/
8169 mono_mb_emit_ldarg (mb, 2);
8170 mono_mb_emit_ldloc (mb, 0);
8171 mono_mb_emit_byte (mb, CEE_STIND_I);
8174 mono_mb_emit_ldarg (mb, 0);
8175 mono_mb_emit_byte (mb, CEE_RET);
8178 mono_mb_patch_branch (mb, not_an_instance_pos);
8179 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8180 mono_mb_emit_ldarg (mb, 2);
8181 /*obj_vtable | 0x1*/
8182 mono_mb_emit_ldloc (mb, 0);
8183 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8184 mono_mb_emit_byte (mb, CEE_CONV_U);
8185 mono_mb_emit_byte (mb, CEE_OR);
8188 mono_mb_emit_byte (mb, CEE_STIND_I);
8191 mono_mb_patch_branch (mb, return_null_pos);
8192 mono_mb_emit_byte (mb, CEE_LDNULL);
8193 mono_mb_emit_byte (mb, CEE_RET);
8196 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8197 res = mono_mb_create (mb, sig, 8, info);
8200 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8201 mono_free_method (res);
8202 mono_metadata_free_method_signature (sig);
8210 * mono_marshal_get_isinst:
8211 * @klass: the type of the field
8213 * This method generates a function which can be used to check if an object is
8214 * an instance of the given type, icluding the case where the object is a proxy.
8215 * The generated function has the following signature:
8216 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8219 mono_marshal_get_isinst (MonoClass *klass)
8221 static MonoMethodSignature *isint_sig = NULL;
8225 int pos_was_ok, pos_end;
8226 #ifndef DISABLE_REMOTING
8227 int pos_end2, pos_failed;
8230 MonoMethodBuilder *mb;
8232 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8233 if ((res = mono_marshal_find_in_cache (cache, klass)))
8237 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8238 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8239 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8240 isint_sig->pinvoke = 0;
8243 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8244 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8247 mb->method->save_lmf = 1;
8250 /* check if the object is a proxy that needs special cast */
8251 mono_mb_emit_ldarg (mb, 0);
8252 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8253 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8255 /* The result of MONO_CISINST can be:
8256 0) the type check succeeded
8257 1) the type check did not succeed
8258 2) a CanCastTo call is needed */
8259 #ifndef DISABLE_REMOTING
8260 mono_mb_emit_byte (mb, CEE_DUP);
8261 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8263 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8264 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8266 /* get the real proxy from the transparent proxy*/
8268 mono_mb_emit_ldarg (mb, 0);
8269 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8270 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8274 mono_mb_patch_branch (mb, pos_failed);
8275 mono_mb_emit_byte (mb, CEE_LDNULL);
8276 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8280 mono_mb_patch_branch (mb, pos_was_ok);
8281 mono_mb_emit_byte (mb, CEE_POP);
8282 mono_mb_emit_ldarg (mb, 0);
8286 mono_mb_patch_branch (mb, pos_end);
8287 mono_mb_patch_branch (mb, pos_end2);
8288 mono_mb_emit_byte (mb, CEE_RET);
8290 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8294 mono_mb_emit_byte (mb, CEE_LDNULL);
8295 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8299 mono_mb_patch_branch (mb, pos_was_ok);
8300 mono_mb_emit_ldarg (mb, 0);
8304 mono_mb_patch_branch (mb, pos_end);
8305 mono_mb_emit_byte (mb, CEE_RET);
8306 #endif /* DISABLE_REMOTING */
8307 #endif /* DISABLE_JIT */
8309 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8310 info->d.proxy.klass = klass;
8311 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8318 * mono_marshal_get_castclass:
8319 * @klass: the type of the field
8321 * This method generates a function which can be used to cast an object to
8322 * an instance of the given type, icluding the case where the object is a proxy.
8323 * The generated function has the following signature:
8324 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8325 * The wrapper info for the wrapper is a WrapperInfo structure.
8328 mono_marshal_get_castclass (MonoClass *klass)
8330 static MonoMethodSignature *castclass_sig = NULL;
8333 #ifndef DISABLE_REMOTING
8334 int pos_was_ok, pos_was_ok2;
8337 MonoMethodBuilder *mb;
8340 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8341 if ((res = mono_marshal_find_in_cache (cache, klass)))
8344 if (!castclass_sig) {
8345 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8346 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8347 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8348 castclass_sig->pinvoke = 0;
8351 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8352 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8355 mb->method->save_lmf = 1;
8358 /* check if the object is a proxy that needs special cast */
8359 mono_mb_emit_ldarg (mb, 0);
8360 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8361 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8363 /* The result of MONO_CCASTCLASS can be:
8364 0) the cast is valid
8365 1) cast of unknown proxy type
8366 or an exception if the cast is is invalid
8368 #ifndef DISABLE_REMOTING
8369 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8371 /* get the real proxy from the transparent proxy*/
8373 mono_mb_emit_ldarg (mb, 0);
8374 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8375 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8378 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8381 mono_mb_patch_branch (mb, pos_was_ok);
8382 mono_mb_patch_branch (mb, pos_was_ok2);
8384 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8385 mono_mb_emit_byte (mb, CEE_POP);
8386 #endif /* DISABLE_REMOTING */
8388 mono_mb_emit_ldarg (mb, 0);
8391 mono_mb_emit_byte (mb, CEE_RET);
8392 #endif /* DISABLE_JIT */
8394 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8396 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8404 * mono_marshal_get_struct_to_ptr:
8407 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8408 * The wrapper info for the wrapper is a WrapperInfo structure.
8411 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8413 MonoMethodBuilder *mb;
8414 static MonoMethod *stoptr = NULL;
8418 g_assert (klass != NULL);
8420 mono_marshal_load_type_info (klass);
8422 if (klass->marshal_info->str_to_ptr)
8423 return klass->marshal_info->str_to_ptr;
8426 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8429 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8432 if (klass->blittable) {
8433 mono_mb_emit_byte (mb, CEE_LDARG_1);
8434 mono_mb_emit_byte (mb, CEE_LDARG_0);
8435 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8436 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8437 mono_mb_emit_byte (mb, CEE_PREFIX1);
8438 mono_mb_emit_byte (mb, CEE_CPBLK);
8441 /* allocate local 0 (pointer) src_ptr */
8442 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8443 /* allocate local 1 (pointer) dst_ptr */
8444 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8445 /* allocate local 2 (boolean) delete_old */
8446 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8447 mono_mb_emit_byte (mb, CEE_LDARG_2);
8448 mono_mb_emit_stloc (mb, 2);
8450 /* initialize src_ptr to point to the start of object data */
8451 mono_mb_emit_byte (mb, CEE_LDARG_0);
8452 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8453 mono_mb_emit_stloc (mb, 0);
8455 /* initialize dst_ptr */
8456 mono_mb_emit_byte (mb, CEE_LDARG_1);
8457 mono_mb_emit_stloc (mb, 1);
8459 emit_struct_conv (mb, klass, FALSE);
8462 mono_mb_emit_byte (mb, CEE_RET);
8464 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8465 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8468 klass->marshal_info->str_to_ptr = res;
8473 * mono_marshal_get_ptr_to_struct:
8476 * generates IL code for PtrToStructure (IntPtr src, object structure)
8477 * The wrapper info for the wrapper is a WrapperInfo structure.
8480 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8482 MonoMethodBuilder *mb;
8483 static MonoMethodSignature *ptostr = NULL;
8487 g_assert (klass != NULL);
8489 mono_marshal_load_type_info (klass);
8491 if (klass->marshal_info->ptr_to_str)
8492 return klass->marshal_info->ptr_to_str;
8495 MonoMethodSignature *sig;
8497 /* Create the signature corresponding to
8498 static void PtrToStructure (IntPtr ptr, object structure);
8499 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8500 sig = mono_create_icall_signature ("void ptr object");
8501 sig = signature_dup (mono_defaults.corlib, sig);
8503 mono_memory_barrier ();
8507 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8510 if (klass->blittable) {
8511 mono_mb_emit_byte (mb, CEE_LDARG_1);
8512 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8513 mono_mb_emit_byte (mb, CEE_LDARG_0);
8514 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8515 mono_mb_emit_byte (mb, CEE_PREFIX1);
8516 mono_mb_emit_byte (mb, CEE_CPBLK);
8519 /* allocate local 0 (pointer) src_ptr */
8520 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8521 /* allocate local 1 (pointer) dst_ptr */
8522 mono_mb_add_local (mb, &klass->this_arg);
8524 /* initialize src_ptr to point to the start of object data */
8525 mono_mb_emit_byte (mb, CEE_LDARG_0);
8526 mono_mb_emit_stloc (mb, 0);
8528 /* initialize dst_ptr */
8529 mono_mb_emit_byte (mb, CEE_LDARG_1);
8530 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8531 mono_mb_emit_stloc (mb, 1);
8533 emit_struct_conv (mb, klass, TRUE);
8536 mono_mb_emit_byte (mb, CEE_RET);
8538 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8539 res = mono_mb_create (mb, ptostr, 0, info);
8542 klass->marshal_info->ptr_to_str = res;
8547 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8548 * This is used to avoid infinite recursion since it is hard to determine where to
8549 * replace a method with its synchronized wrapper, and where not.
8550 * The runtime should execute METHOD instead of the wrapper.
8551 * The wrapper info for the wrapper is a WrapperInfo structure.
8554 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8556 MonoMethodBuilder *mb;
8558 MonoMethodSignature *sig;
8560 MonoGenericContext *ctx = NULL;
8561 MonoMethod *orig_method = NULL;
8562 MonoGenericContainer *container = NULL;
8564 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8565 orig_method = method;
8566 ctx = &((MonoMethodInflated*)method)->context;
8567 method = ((MonoMethodInflated*)method)->declaring;
8568 container = mono_method_get_generic_container (method);
8570 container = method->klass->generic_container;
8571 g_assert (container);
8574 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8576 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8577 mono_mb_emit_byte (mb, CEE_RET);
8579 sig = signature_dup (method->klass->image, mono_method_signature (method));
8581 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8582 info->d.synchronized_inner.method = method;
8583 res = mono_mb_create (mb, sig, 0, info);
8587 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8588 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8594 * generates IL code for the synchronized wrapper: the generated method
8595 * calls METHOD while locking 'this' or the parent type.
8598 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8600 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8601 MonoMethodSignature *sig;
8602 MonoExceptionClause *clause;
8603 MonoMethodBuilder *mb;
8606 int i, pos, this_local, ret_local = 0;
8607 MonoGenericContext *ctx = NULL;
8608 MonoMethod *orig_method = NULL;
8609 MonoGenericContainer *container = NULL;
8613 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8616 /* FIXME: Support generic methods too */
8617 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8618 orig_method = method;
8619 ctx = &((MonoMethodInflated*)method)->context;
8620 method = ((MonoMethodInflated*)method)->declaring;
8621 container = mono_method_get_generic_container (method);
8623 container = method->klass->generic_container;
8624 g_assert (container);
8631 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8632 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8636 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8637 if ((res = mono_marshal_find_in_cache (cache, method)))
8641 sig = signature_dup (method->klass->image, mono_method_signature (method));
8644 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8648 if (!MONO_TYPE_IS_VOID (sig->ret))
8649 ret_local = mono_mb_add_local (mb, sig->ret);
8652 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8653 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8655 /* This will throw the type load exception when the wrapper is compiled */
8656 mono_mb_emit_byte (mb, CEE_LDNULL);
8657 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8658 mono_mb_emit_byte (mb, CEE_POP);
8660 if (!MONO_TYPE_IS_VOID (sig->ret))
8661 mono_mb_emit_ldloc (mb, ret_local);
8662 mono_mb_emit_byte (mb, CEE_RET);
8665 res = mono_mb_create_and_cache (cache, method,
8666 mb, sig, sig->param_count + 16);
8674 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8676 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8677 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8680 mono_marshal_lock ();
8682 if (!enter_method) {
8683 MonoMethodDesc *desc;
8685 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8686 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8687 g_assert (enter_method);
8688 mono_method_desc_free (desc);
8690 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8691 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8692 g_assert (exit_method);
8693 mono_method_desc_free (desc);
8695 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8696 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8697 g_assert (gettypefromhandle_method);
8698 mono_method_desc_free (desc);
8701 mono_marshal_unlock ();
8704 /* Push this or the type object */
8705 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8706 /* We have special handling for this in the JIT */
8707 int index = mono_mb_add_data (mb, method->klass);
8708 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8709 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8710 mono_mb_emit_i4 (mb, index);
8712 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8715 mono_mb_emit_ldarg (mb, 0);
8716 mono_mb_emit_stloc (mb, this_local);
8718 /* Call Monitor::Enter() */
8719 mono_mb_emit_ldloc (mb, this_local);
8720 mono_mb_emit_managed_call (mb, enter_method, NULL);
8722 clause->try_offset = mono_mb_get_label (mb);
8724 /* Call the method */
8726 mono_mb_emit_ldarg (mb, 0);
8727 for (i = 0; i < sig->param_count; i++)
8728 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8732 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8733 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8735 mono_mb_emit_managed_call (mb, method, NULL);
8738 if (!MONO_TYPE_IS_VOID (sig->ret))
8739 mono_mb_emit_stloc (mb, ret_local);
8741 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8743 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8744 clause->handler_offset = mono_mb_get_label (mb);
8746 /* Call Monitor::Exit() */
8747 mono_mb_emit_ldloc (mb, this_local);
8748 mono_mb_emit_managed_call (mb, exit_method, NULL);
8749 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8751 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8753 mono_mb_patch_branch (mb, pos);
8754 if (!MONO_TYPE_IS_VOID (sig->ret))
8755 mono_mb_emit_ldloc (mb, ret_local);
8756 mono_mb_emit_byte (mb, CEE_RET);
8758 mono_mb_set_clauses (mb, 1, clause);
8763 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8764 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8766 res = mono_mb_create_and_cache (cache, method,
8767 mb, sig, sig->param_count + 16);
8776 * the returned method calls 'method' unboxing the this argument
8779 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8781 MonoMethodSignature *sig = mono_method_signature (method);
8783 MonoMethodBuilder *mb;
8787 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8788 if ((res = mono_marshal_find_in_cache (cache, method)))
8791 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8793 g_assert (sig->hasthis);
8796 mono_mb_emit_ldarg (mb, 0);
8797 mono_mb_emit_icon (mb, sizeof (MonoObject));
8798 mono_mb_emit_byte (mb, CEE_ADD);
8799 for (i = 0; i < sig->param_count; ++i)
8800 mono_mb_emit_ldarg (mb, i + 1);
8801 mono_mb_emit_managed_call (mb, method, NULL);
8802 mono_mb_emit_byte (mb, CEE_RET);
8805 res = mono_mb_create_and_cache (cache, method,
8806 mb, sig, sig->param_count + 16);
8809 /* code_for (res); */
8815 STELEMREF_OBJECT, /*no check at all*/
8816 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8817 STELEMREF_CLASS, /*only the klass->parents check*/
8818 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8819 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8820 STELEMREF_KIND_COUNT
8823 static const char *strelemref_wrapper_name[] = {
8824 "object", "sealed_class", "class", "interface", "complex"
8828 is_monomorphic_array (MonoClass *klass)
8830 MonoClass *element_class;
8831 if (klass->rank != 1)
8834 element_class = klass->element_class;
8835 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8839 get_virtual_stelemref_kind (MonoClass *element_class)
8841 if (element_class == mono_defaults.object_class)
8842 return STELEMREF_OBJECT;
8843 if (is_monomorphic_array (element_class))
8844 return STELEMREF_SEALED_CLASS;
8845 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8846 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8847 #ifdef COMPRESSED_INTERFACE_BITMAP
8848 return STELEMREF_COMPLEX;
8850 return STELEMREF_INTERFACE;
8852 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8853 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8854 return STELEMREF_COMPLEX;
8855 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8856 return STELEMREF_SEALED_CLASS;
8857 return STELEMREF_CLASS;
8863 load_array_element_address (MonoMethodBuilder *mb)
8865 mono_mb_emit_ldarg (mb, 0);
8866 mono_mb_emit_ldarg (mb, 1);
8867 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8871 load_array_class (MonoMethodBuilder *mb, int aklass)
8873 mono_mb_emit_ldarg (mb, 0);
8874 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8875 mono_mb_emit_byte (mb, CEE_LDIND_I);
8876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8877 mono_mb_emit_byte (mb, CEE_LDIND_I);
8878 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8879 mono_mb_emit_byte (mb, CEE_LDIND_I);
8880 mono_mb_emit_stloc (mb, aklass);
8884 load_value_class (MonoMethodBuilder *mb, int vklass)
8886 mono_mb_emit_ldarg (mb, 2);
8887 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8888 mono_mb_emit_byte (mb, CEE_LDIND_I);
8889 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8890 mono_mb_emit_byte (mb, CEE_LDIND_I);
8891 mono_mb_emit_stloc (mb, vklass);
8897 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8899 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8900 printf ("slow vstore of %s\n", name);
8906 * The wrapper info for the wrapper is a WrapperInfo structure.
8909 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8910 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8911 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8912 * - Add a case for arrays of arrays.
8915 get_virtual_stelemref_wrapper (int kind)
8917 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8918 static MonoMethodSignature *signature;
8919 MonoMethodBuilder *mb;
8922 const char *param_names [16];
8924 int aklass, vklass, vtable, uiid;
8925 int array_slot_addr;
8928 if (cached_methods [kind])
8929 return cached_methods [kind];
8931 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8932 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8936 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8938 /* void this::stelemref (size_t idx, void* value) */
8939 sig->ret = &mono_defaults.void_class->byval_arg;
8940 sig->hasthis = TRUE;
8941 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8942 sig->params [1] = &mono_defaults.object_class->byval_arg;
8947 param_names [0] = "index";
8948 param_names [1] = "value";
8949 mono_mb_set_param_names (mb, param_names);
8951 /*For now simply call plain old stelemref*/
8953 case STELEMREF_OBJECT:
8954 /* ldelema (implicit bound check) */
8955 load_array_element_address (mb);
8957 mono_mb_emit_ldarg (mb, 2);
8958 mono_mb_emit_byte (mb, CEE_STIND_REF);
8959 mono_mb_emit_byte (mb, CEE_RET);
8962 case STELEMREF_COMPLEX:
8964 <ldelema (bound check)>
8967 if (!mono_object_isinst (value, aklass))
8971 *array_slot_addr = value;
8974 throw new ArrayTypeMismatchException ();
8977 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8978 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8982 /*Use this to debug/record stores that are going thru the slow path*/
8983 MonoMethodSignature *csig;
8984 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8985 csig->ret = &mono_defaults.void_class->byval_arg;
8986 csig->params [0] = &mono_defaults.object_class->byval_arg;
8987 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8988 csig->params [2] = &mono_defaults.object_class->byval_arg;
8989 mono_mb_emit_ldarg (mb, 0);
8990 mono_mb_emit_ldarg (mb, 1);
8991 mono_mb_emit_ldarg (mb, 2);
8992 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
8996 /* ldelema (implicit bound check) */
8997 load_array_element_address (mb);
8998 mono_mb_emit_stloc (mb, array_slot_addr);
9000 /* if (!value) goto do_store */
9001 mono_mb_emit_ldarg (mb, 2);
9002 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9004 /* aklass = array->vtable->klass->element_class */
9005 load_array_class (mb, aklass);
9007 /*if (mono_object_isinst (value, aklass)) */
9008 mono_mb_emit_ldarg (mb, 2);
9009 mono_mb_emit_ldloc (mb, aklass);
9010 mono_mb_emit_icall (mb, mono_object_isinst);
9011 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9014 mono_mb_patch_branch (mb, b1);
9015 mono_mb_emit_ldloc (mb, array_slot_addr);
9016 mono_mb_emit_ldarg (mb, 2);
9017 mono_mb_emit_byte (mb, CEE_STIND_REF);
9018 mono_mb_emit_byte (mb, CEE_RET);
9021 mono_mb_patch_branch (mb, b2);
9023 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9026 case STELEMREF_SEALED_CLASS:
9028 <ldelema (bound check)>
9032 aklass = array->vtable->klass->element_class;
9033 vklass = value->vtable->klass;
9035 if (vklass != aklass)
9039 *array_slot_addr = value;
9042 throw new ArrayTypeMismatchException ();
9044 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9045 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9046 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9049 /* ldelema (implicit bound check) */
9050 load_array_element_address (mb);
9051 mono_mb_emit_stloc (mb, array_slot_addr);
9053 /* if (!value) goto do_store */
9054 mono_mb_emit_ldarg (mb, 2);
9055 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9057 /* aklass = array->vtable->klass->element_class */
9058 load_array_class (mb, aklass);
9060 /* vklass = value->vtable->klass */
9061 load_value_class (mb, vklass);
9063 /*if (vklass != aklass) goto do_exception; */
9064 mono_mb_emit_ldloc (mb, aklass);
9065 mono_mb_emit_ldloc (mb, vklass);
9066 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9069 mono_mb_patch_branch (mb, b1);
9070 mono_mb_emit_ldloc (mb, array_slot_addr);
9071 mono_mb_emit_ldarg (mb, 2);
9072 mono_mb_emit_byte (mb, CEE_STIND_REF);
9073 mono_mb_emit_byte (mb, CEE_RET);
9076 mono_mb_patch_branch (mb, b2);
9077 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9080 case STELEMREF_CLASS:
9083 <ldelema (bound check)>
9087 aklass = array->vtable->klass->element_class;
9088 vklass = value->vtable->klass;
9090 if (vklass->idepth < aklass->idepth)
9093 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9097 *array_slot_addr = value;
9101 throw new ArrayTypeMismatchException ();
9103 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9104 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9105 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9107 /* ldelema (implicit bound check) */
9108 load_array_element_address (mb);
9109 mono_mb_emit_stloc (mb, array_slot_addr);
9111 /* if (!value) goto do_store */
9112 mono_mb_emit_ldarg (mb, 2);
9113 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9115 /* aklass = array->vtable->klass->element_class */
9116 load_array_class (mb, aklass);
9118 /* vklass = value->vtable->klass */
9119 load_value_class (mb, vklass);
9121 /*if (mono_object_isinst (value, aklass)) */
9122 mono_mb_emit_ldarg (mb, 2);
9123 mono_mb_emit_ldloc (mb, aklass);
9124 mono_mb_emit_icall (mb, mono_object_isinst);
9125 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9127 /* if (vklass->idepth < aklass->idepth) goto failue */
9128 mono_mb_emit_ldloc (mb, vklass);
9129 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9130 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9132 mono_mb_emit_ldloc (mb, aklass);
9133 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9134 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9136 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9138 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9139 mono_mb_emit_ldloc (mb, vklass);
9140 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9141 mono_mb_emit_byte (mb, CEE_LDIND_I);
9143 mono_mb_emit_ldloc (mb, aklass);
9144 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9145 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9146 mono_mb_emit_icon (mb, 1);
9147 mono_mb_emit_byte (mb, CEE_SUB);
9148 mono_mb_emit_icon (mb, sizeof (void*));
9149 mono_mb_emit_byte (mb, CEE_MUL);
9150 mono_mb_emit_byte (mb, CEE_ADD);
9151 mono_mb_emit_byte (mb, CEE_LDIND_I);
9153 mono_mb_emit_ldloc (mb, aklass);
9154 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9157 mono_mb_patch_branch (mb, b1);
9158 mono_mb_emit_ldloc (mb, array_slot_addr);
9159 mono_mb_emit_ldarg (mb, 2);
9160 mono_mb_emit_byte (mb, CEE_STIND_REF);
9161 mono_mb_emit_byte (mb, CEE_RET);
9164 mono_mb_patch_branch (mb, b2);
9165 mono_mb_patch_branch (mb, b3);
9167 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9170 case STELEMREF_INTERFACE:
9177 klass = array->obj.vtable->klass->element_class;
9179 uiid = klass->interface_id;
9180 if (uiid > vt->max_interface_id)
9182 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9185 mono_array_setref (array, index, value);
9188 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9190 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9191 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9192 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9193 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9195 /* ldelema (implicit bound check) */
9196 load_array_element_address (mb);
9197 mono_mb_emit_stloc (mb, array_slot_addr);
9199 /* if (!value) goto do_store */
9200 mono_mb_emit_ldarg (mb, 2);
9201 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9203 /* klass = array->vtable->klass->element_class */
9204 load_array_class (mb, aklass);
9206 /* vt = value->vtable */
9207 mono_mb_emit_ldarg (mb, 2);
9208 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9209 mono_mb_emit_byte (mb, CEE_LDIND_I);
9210 mono_mb_emit_stloc (mb, vtable);
9212 /* uiid = klass->interface_id; */
9213 mono_mb_emit_ldloc (mb, aklass);
9214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9215 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9216 mono_mb_emit_stloc (mb, uiid);
9218 /*if (uiid > vt->max_interface_id)*/
9219 mono_mb_emit_ldloc (mb, uiid);
9220 mono_mb_emit_ldloc (mb, vtable);
9221 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9222 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9223 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9225 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9227 /*vt->interface_bitmap*/
9228 mono_mb_emit_ldloc (mb, vtable);
9229 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9230 mono_mb_emit_byte (mb, CEE_LDIND_I);
9233 mono_mb_emit_ldloc (mb, uiid);
9234 mono_mb_emit_icon (mb, 3);
9235 mono_mb_emit_byte (mb, CEE_SHR_UN);
9237 /*vt->interface_bitmap [(uiid) >> 3]*/
9238 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9239 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9241 /*(1 << ((uiid)&7)))*/
9242 mono_mb_emit_icon (mb, 1);
9243 mono_mb_emit_ldloc (mb, uiid);
9244 mono_mb_emit_icon (mb, 7);
9245 mono_mb_emit_byte (mb, CEE_AND);
9246 mono_mb_emit_byte (mb, CEE_SHL);
9248 /*bitwise and the whole thing*/
9249 mono_mb_emit_byte (mb, CEE_AND);
9250 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9253 mono_mb_patch_branch (mb, b1);
9254 mono_mb_emit_ldloc (mb, array_slot_addr);
9255 mono_mb_emit_ldarg (mb, 2);
9256 mono_mb_emit_byte (mb, CEE_STIND_REF);
9257 mono_mb_emit_byte (mb, CEE_RET);
9260 mono_mb_patch_branch (mb, b2);
9261 mono_mb_patch_branch (mb, b3);
9262 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9266 mono_mb_emit_ldarg (mb, 0);
9267 mono_mb_emit_ldarg (mb, 1);
9268 mono_mb_emit_ldarg (mb, 2);
9269 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9270 mono_mb_emit_byte (mb, CEE_RET);
9273 #endif /* DISABLE_JIT */
9274 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9275 info->d.virtual_stelemref.kind = kind;
9276 res = mono_mb_create (mb, signature, 4, info);
9277 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9279 mono_marshal_lock ();
9280 if (!cached_methods [kind]) {
9281 cached_methods [kind] = res;
9282 mono_marshal_unlock ();
9284 mono_marshal_unlock ();
9285 mono_free_method (res);
9289 return cached_methods [kind];
9293 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9297 g_assert (array_class->rank == 1);
9298 kind = get_virtual_stelemref_kind (array_class->element_class);
9300 return get_virtual_stelemref_wrapper (kind);
9304 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9309 *nwrappers = STELEMREF_KIND_COUNT;
9310 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9311 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9312 res [i] = get_virtual_stelemref_wrapper (i);
9317 * The wrapper info for the wrapper is a WrapperInfo structure.
9320 mono_marshal_get_stelemref (void)
9322 static MonoMethod* ret = NULL;
9323 MonoMethodSignature *sig;
9324 MonoMethodBuilder *mb;
9327 guint32 b1, b2, b3, b4;
9330 int array_slot_addr;
9335 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9338 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9340 /* void stelemref (void* array, int idx, void* value) */
9341 sig->ret = &mono_defaults.void_class->byval_arg;
9342 sig->params [0] = &mono_defaults.object_class->byval_arg;
9343 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9344 sig->params [2] = &mono_defaults.object_class->byval_arg;
9347 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9348 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9349 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9353 <ldelema (bound check)>
9357 aklass = array->vtable->klass->element_class;
9358 vklass = value->vtable->klass;
9360 if (vklass->idepth < aklass->idepth)
9363 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9367 *array_slot_addr = value;
9371 if (mono_object_isinst (value, aklass))
9374 throw new ArrayTypeMismatchException ();
9377 /* ldelema (implicit bound check) */
9378 mono_mb_emit_ldarg (mb, 0);
9379 mono_mb_emit_ldarg (mb, 1);
9380 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9381 mono_mb_emit_stloc (mb, array_slot_addr);
9383 /* if (!value) goto do_store */
9384 mono_mb_emit_ldarg (mb, 2);
9385 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9387 /* aklass = array->vtable->klass->element_class */
9388 mono_mb_emit_ldarg (mb, 0);
9389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9390 mono_mb_emit_byte (mb, CEE_LDIND_I);
9391 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9392 mono_mb_emit_byte (mb, CEE_LDIND_I);
9393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9394 mono_mb_emit_byte (mb, CEE_LDIND_I);
9395 mono_mb_emit_stloc (mb, aklass);
9397 /* vklass = value->vtable->klass */
9398 mono_mb_emit_ldarg (mb, 2);
9399 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9400 mono_mb_emit_byte (mb, CEE_LDIND_I);
9401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9402 mono_mb_emit_byte (mb, CEE_LDIND_I);
9403 mono_mb_emit_stloc (mb, vklass);
9405 /* if (vklass->idepth < aklass->idepth) goto failue */
9406 mono_mb_emit_ldloc (mb, vklass);
9407 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9408 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9410 mono_mb_emit_ldloc (mb, aklass);
9411 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9412 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9414 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9416 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9417 mono_mb_emit_ldloc (mb, vklass);
9418 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9419 mono_mb_emit_byte (mb, CEE_LDIND_I);
9421 mono_mb_emit_ldloc (mb, aklass);
9422 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9423 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9424 mono_mb_emit_icon (mb, 1);
9425 mono_mb_emit_byte (mb, CEE_SUB);
9426 mono_mb_emit_icon (mb, sizeof (void*));
9427 mono_mb_emit_byte (mb, CEE_MUL);
9428 mono_mb_emit_byte (mb, CEE_ADD);
9429 mono_mb_emit_byte (mb, CEE_LDIND_I);
9431 mono_mb_emit_ldloc (mb, aklass);
9433 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9435 copy_pos = mono_mb_get_label (mb);
9437 mono_mb_patch_branch (mb, b1);
9438 mono_mb_emit_ldloc (mb, array_slot_addr);
9439 mono_mb_emit_ldarg (mb, 2);
9440 mono_mb_emit_byte (mb, CEE_STIND_REF);
9442 mono_mb_emit_byte (mb, CEE_RET);
9445 mono_mb_patch_branch (mb, b2);
9446 mono_mb_patch_branch (mb, b3);
9448 mono_mb_emit_ldarg (mb, 2);
9449 mono_mb_emit_ldloc (mb, aklass);
9450 mono_mb_emit_icall (mb, mono_object_isinst);
9452 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9453 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9454 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9456 mono_mb_emit_byte (mb, CEE_RET);
9458 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9459 ret = mono_mb_create (mb, sig, 4, info);
9466 * mono_marshal_get_gsharedvt_in_wrapper:
9468 * This wrapper handles calls from normal code to gsharedvt code.
9470 * The wrapper info for the wrapper is a WrapperInfo structure.
9473 mono_marshal_get_gsharedvt_in_wrapper (void)
9475 static MonoMethod* ret = NULL;
9476 MonoMethodSignature *sig;
9477 MonoMethodBuilder *mb;
9483 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9485 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9486 sig->ret = &mono_defaults.void_class->byval_arg;
9490 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9492 mono_mb_emit_byte (mb, CEE_RET);
9494 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9495 ret = mono_mb_create (mb, sig, 4, info);
9502 * mono_marshal_get_gsharedvt_out_wrapper:
9504 * This wrapper handles calls from gsharedvt code to normal code.
9506 * The wrapper info for the wrapper is a WrapperInfo structure.
9509 mono_marshal_get_gsharedvt_out_wrapper (void)
9511 static MonoMethod* ret = NULL;
9512 MonoMethodSignature *sig;
9513 MonoMethodBuilder *mb;
9519 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9521 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9522 sig->ret = &mono_defaults.void_class->byval_arg;
9526 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9528 mono_mb_emit_byte (mb, CEE_RET);
9530 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9531 ret = mono_mb_create (mb, sig, 4, info);
9543 /* LOCKING: vars accessed under the marshal lock */
9544 static ArrayElemAddr *elem_addr_cache = NULL;
9545 static int elem_addr_cache_size = 0;
9546 static int elem_addr_cache_next = 0;
9549 * mono_marshal_get_array_address:
9550 * @rank: rank of the array type
9551 * @elem_size: size in bytes of an element of an array.
9553 * Returns a MonoMethod that implements the code to get the address
9554 * of an element in a multi-dimenasional array of @rank dimensions.
9555 * The returned method takes an array as the first argument and then
9556 * @rank indexes for the @rank dimensions.
9557 * If ELEM_SIZE is 0, read the array size from the array object.
9560 mono_marshal_get_array_address (int rank, int elem_size)
9563 MonoMethodBuilder *mb;
9564 MonoMethodSignature *sig;
9567 int i, bounds, ind, realidx;
9568 int branch_pos, *branch_positions;
9572 mono_marshal_lock ();
9573 for (i = 0; i < elem_addr_cache_next; ++i) {
9574 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9575 ret = elem_addr_cache [i].method;
9579 mono_marshal_unlock ();
9583 branch_positions = g_new0 (int, rank);
9585 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9587 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9588 sig->ret = &mono_defaults.int_class->byval_arg;
9589 sig->params [0] = &mono_defaults.object_class->byval_arg;
9590 for (i = 0; i < rank; ++i) {
9591 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9594 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9595 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9599 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9600 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9601 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9603 /* bounds = array->bounds; */
9604 mono_mb_emit_ldarg (mb, 0);
9605 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9606 mono_mb_emit_byte (mb, CEE_LDIND_I);
9607 mono_mb_emit_stloc (mb, bounds);
9609 /* ind is the overall element index, realidx is the partial index in a single dimension */
9610 /* ind = idx0 - bounds [0].lower_bound */
9611 mono_mb_emit_ldarg (mb, 1);
9612 mono_mb_emit_ldloc (mb, bounds);
9613 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9614 mono_mb_emit_byte (mb, CEE_ADD);
9615 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9616 mono_mb_emit_byte (mb, CEE_SUB);
9617 mono_mb_emit_stloc (mb, ind);
9618 /* if (ind >= bounds [0].length) goto exeception; */
9619 mono_mb_emit_ldloc (mb, ind);
9620 mono_mb_emit_ldloc (mb, bounds);
9621 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9622 mono_mb_emit_byte (mb, CEE_ADD);
9623 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9624 /* note that we use unsigned comparison */
9625 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9627 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9628 * We could also decide to ignore the passed elem_size and get it
9629 * from the array object, to reduce the number of methods we generate:
9630 * the additional cost is 3 memory loads and a non-immediate mul.
9632 for (i = 1; i < rank; ++i) {
9633 /* realidx = idxi - bounds [i].lower_bound */
9634 mono_mb_emit_ldarg (mb, 1 + i);
9635 mono_mb_emit_ldloc (mb, bounds);
9636 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9637 mono_mb_emit_byte (mb, CEE_ADD);
9638 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9639 mono_mb_emit_byte (mb, CEE_SUB);
9640 mono_mb_emit_stloc (mb, realidx);
9641 /* if (realidx >= bounds [i].length) goto exeception; */
9642 mono_mb_emit_ldloc (mb, realidx);
9643 mono_mb_emit_ldloc (mb, bounds);
9644 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9645 mono_mb_emit_byte (mb, CEE_ADD);
9646 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9647 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9648 /* ind = ind * bounds [i].length + realidx */
9649 mono_mb_emit_ldloc (mb, ind);
9650 mono_mb_emit_ldloc (mb, bounds);
9651 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9652 mono_mb_emit_byte (mb, CEE_ADD);
9653 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9654 mono_mb_emit_byte (mb, CEE_MUL);
9655 mono_mb_emit_ldloc (mb, realidx);
9656 mono_mb_emit_byte (mb, CEE_ADD);
9657 mono_mb_emit_stloc (mb, ind);
9660 /* return array->vector + ind * element_size */
9661 mono_mb_emit_ldarg (mb, 0);
9662 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9663 mono_mb_emit_ldloc (mb, ind);
9665 mono_mb_emit_icon (mb, elem_size);
9667 /* Load arr->vtable->klass->sizes.element_class */
9668 mono_mb_emit_ldarg (mb, 0);
9669 mono_mb_emit_byte (mb, CEE_CONV_I);
9670 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9671 mono_mb_emit_byte (mb, CEE_ADD);
9672 mono_mb_emit_byte (mb, CEE_LDIND_I);
9673 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9674 mono_mb_emit_byte (mb, CEE_ADD);
9675 mono_mb_emit_byte (mb, CEE_LDIND_I);
9676 /* sizes is an union, so this reads sizes.element_size */
9677 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9678 mono_mb_emit_byte (mb, CEE_ADD);
9679 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9681 mono_mb_emit_byte (mb, CEE_MUL);
9682 mono_mb_emit_byte (mb, CEE_ADD);
9683 mono_mb_emit_byte (mb, CEE_RET);
9685 /* patch the branches to get here and throw */
9686 for (i = 1; i < rank; ++i) {
9687 mono_mb_patch_branch (mb, branch_positions [i]);
9689 mono_mb_patch_branch (mb, branch_pos);
9690 /* throw exception */
9691 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9693 g_free (branch_positions);
9694 #endif /* DISABLE_JIT */
9696 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9697 info->d.element_addr.rank = rank;
9698 info->d.element_addr.elem_size = elem_size;
9699 ret = mono_mb_create (mb, sig, 4, info);
9702 /* cache the result */
9704 mono_marshal_lock ();
9705 for (i = 0; i < elem_addr_cache_next; ++i) {
9706 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9707 /* FIXME: free ret */
9708 ret = elem_addr_cache [i].method;
9714 if (elem_addr_cache_next >= elem_addr_cache_size) {
9715 int new_size = elem_addr_cache_size + 4;
9716 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9717 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9718 g_free (elem_addr_cache);
9719 elem_addr_cache = new_array;
9720 elem_addr_cache_size = new_size;
9722 elem_addr_cache [elem_addr_cache_next].rank = rank;
9723 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9724 elem_addr_cache [elem_addr_cache_next].method = ret;
9725 elem_addr_cache_next ++;
9727 mono_marshal_unlock ();
9732 * mono_marshal_get_array_accessor_wrapper:
9734 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9737 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9739 MonoMethodSignature *sig;
9740 MonoMethodBuilder *mb;
9744 MonoGenericContext *ctx = NULL;
9745 MonoMethod *orig_method = NULL;
9746 MonoGenericContainer *container = NULL;
9750 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9751 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9752 * FIXME: Use generic methods.
9759 g_assert_not_reached ();
9761 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9762 if ((res = mono_marshal_find_in_cache (cache, method)))
9766 sig = signature_dup (method->klass->image, mono_method_signature (method));
9769 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9772 /* Call the method */
9774 mono_mb_emit_ldarg (mb, 0);
9775 for (i = 0; i < sig->param_count; i++)
9776 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9780 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9781 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9783 mono_mb_emit_managed_call (mb, method, NULL);
9785 mono_mb_emit_byte (mb, CEE_RET);
9790 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9791 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9793 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9794 info->d.array_accessor.method = method;
9796 res = mono_mb_create_and_cache_full (cache, method,
9797 mb, sig, sig->param_count + 16,
9806 mono_marshal_alloc (gulong size)
9811 res = CoTaskMemAlloc (size);
9813 res = g_try_malloc ((gulong)size);
9815 mono_gc_out_of_memory ((gulong)size);
9821 mono_marshal_free (gpointer ptr)
9824 CoTaskMemFree (ptr);
9831 mono_marshal_free_array (gpointer *ptr, int size)
9838 for (i = 0; i < size; i++)
9844 mono_marshal_string_to_utf16 (MonoString *s)
9846 return s ? mono_string_chars (s) : NULL;
9850 mono_marshal_string_to_utf16_copy (MonoString *s)
9855 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9856 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9857 res [mono_string_length (s)] = 0;
9863 * mono_marshal_set_last_error:
9865 * This function is invoked to set the last error value from a P/Invoke call
9866 * which has SetLastError set.
9869 mono_marshal_set_last_error (void)
9872 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9874 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9879 mono_marshal_set_last_error_windows (int error)
9882 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9887 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9888 gpointer dest, gint32 length)
9893 MONO_CHECK_ARG_NULL (src,);
9894 MONO_CHECK_ARG_NULL (dest,);
9896 if (src->obj.vtable->klass->rank != 1) {
9897 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9900 if (start_index < 0) {
9901 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9905 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9908 if (start_index + length > mono_array_length (src)) {
9909 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9913 element_size = mono_array_element_size (src->obj.vtable->klass);
9915 /* no references should be involved */
9916 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9918 memcpy (dest, source_addr, length * element_size);
9922 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9923 MonoArray *dest, gint32 length)
9928 MONO_CHECK_ARG_NULL (src,);
9929 MONO_CHECK_ARG_NULL (dest,);
9931 if (dest->obj.vtable->klass->rank != 1) {
9932 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9935 if (start_index < 0) {
9936 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9940 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9943 if (start_index + length > mono_array_length (dest)) {
9944 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9947 element_size = mono_array_element_size (dest->obj.vtable->klass);
9949 /* no references should be involved */
9950 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9952 memcpy (dest_addr, src, length * element_size);
9956 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9961 return mono_string_new (mono_domain_get (), ptr);
9965 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9968 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
9971 return mono_string_new_len (mono_domain_get (), ptr, len);
9976 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9978 MonoDomain *domain = mono_domain_get ();
9988 return mono_string_new_utf16 (domain, ptr, len);
9992 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9994 MonoDomain *domain = mono_domain_get ();
9997 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10000 return mono_string_new_utf16 (domain, ptr, len);
10005 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10007 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10011 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10017 MONO_CHECK_ARG_NULL (rtype, 0);
10019 type = rtype->type;
10020 klass = mono_class_from_mono_type (type);
10021 if (!mono_class_init (klass)) {
10022 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10026 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10028 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10029 return sizeof (gpointer);
10030 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10032 MonoException *exc;
10034 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10035 exc = mono_get_exception_argument ("t", msg);
10037 mono_set_pending_exception (exc);
10041 return mono_class_native_size (klass, NULL);
10045 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10047 MonoMethod *method;
10050 MONO_CHECK_ARG_NULL (obj,);
10051 MONO_CHECK_ARG_NULL (dst,);
10053 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10057 pa [2] = &delete_old;
10059 mono_runtime_invoke (method, NULL, pa, NULL);
10063 ptr_to_structure (gpointer src, MonoObject *dst)
10065 MonoMethod *method;
10068 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10073 mono_runtime_invoke (method, NULL, pa, NULL);
10077 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10081 MONO_CHECK_ARG_NULL (src,);
10082 MONO_CHECK_ARG_NULL (dst,);
10084 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10086 if (t->type == MONO_TYPE_VALUETYPE) {
10087 MonoException *exc;
10090 tmp = g_strdup_printf ("Destination is a boxed value type.");
10091 exc = mono_get_exception_argument ("dst", tmp);
10094 mono_set_pending_exception (exc);
10098 ptr_to_structure (src, dst);
10102 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10105 MonoDomain *domain = mono_domain_get ();
10110 MONO_CHECK_ARG_NULL (type, NULL);
10112 klass = mono_class_from_mono_type (type->type);
10113 if (!mono_class_init (klass)) {
10114 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10118 res = mono_object_new (domain, klass);
10120 ptr_to_structure (src, res);
10126 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10128 MonoMarshalType *info;
10131 int match_index = -1;
10133 MONO_CHECK_ARG_NULL (type, 0);
10134 MONO_CHECK_ARG_NULL (field_name, 0);
10136 fname = mono_string_to_utf8 (field_name);
10137 klass = mono_class_from_mono_type (type->type);
10138 if (!mono_class_init (klass)) {
10139 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10143 while (klass && match_index == -1) {
10144 MonoClassField* field;
10146 gpointer iter = NULL;
10147 while ((field = mono_class_get_fields (klass, &iter))) {
10148 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10150 if (!strcmp (fname, mono_field_get_name (field))) {
10157 if (match_index == -1)
10158 klass = klass->parent;
10163 if(match_index == -1) {
10164 MonoException* exc;
10167 /* Get back original class instance */
10168 klass = mono_class_from_mono_type (type->type);
10170 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10171 exc = mono_get_exception_argument ("fieldName", tmp);
10174 mono_set_pending_exception ((MonoException*)exc);
10178 info = mono_marshal_load_type_info (klass);
10179 return info->fields [match_index].offset;
10183 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10188 tres = mono_string_to_utf8 (string);
10192 len = strlen (tres) + 1;
10193 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10194 memcpy (ret, tres, len);
10199 return mono_string_to_utf8 (string);
10204 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10206 if (string == NULL)
10209 #ifdef TARGET_WIN32
10210 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10211 ((mono_string_length (string) + 1) * 2);
10213 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10215 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10216 res [mono_string_length (string)] = 0;
10222 mono_struct_delete_old (MonoClass *klass, char *ptr)
10224 MonoMarshalType *info;
10227 info = mono_marshal_load_type_info (klass);
10229 for (i = 0; i < info->num_fields; i++) {
10230 MonoMarshalNative ntype;
10231 MonoMarshalConv conv;
10232 MonoType *ftype = info->fields [i].field->type;
10235 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10238 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10239 klass->unicode, &conv);
10241 cpos = ptr + info->fields [i].offset;
10244 case MONO_MARSHAL_CONV_NONE:
10245 if (MONO_TYPE_ISSTRUCT (ftype)) {
10246 mono_struct_delete_old (ftype->data.klass, cpos);
10250 case MONO_MARSHAL_CONV_STR_LPWSTR:
10251 /* We assume this field points inside a MonoString */
10253 case MONO_MARSHAL_CONV_STR_LPTSTR:
10254 #ifdef TARGET_WIN32
10255 /* We assume this field points inside a MonoString
10259 case MONO_MARSHAL_CONV_STR_LPSTR:
10260 case MONO_MARSHAL_CONV_STR_BSTR:
10261 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10262 case MONO_MARSHAL_CONV_STR_TBSTR:
10263 mono_marshal_free (*(gpointer *)cpos);
10273 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10277 MONO_CHECK_ARG_NULL (src,);
10278 MONO_CHECK_ARG_NULL (type,);
10280 klass = mono_class_from_mono_type (type->type);
10281 if (!mono_class_init (klass)) {
10282 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10286 mono_struct_delete_old (klass, (char *)src);
10290 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10294 if ((gulong)size == 0)
10295 /* This returns a valid pointer for size 0 on MS.NET */
10299 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10301 res = g_try_malloc ((gulong)size);
10304 mono_gc_out_of_memory ((gulong)size);
10310 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10315 mono_gc_out_of_memory ((gulong)size);
10320 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10322 res = g_try_realloc (ptr, (gulong)size);
10325 mono_gc_out_of_memory ((gulong)size);
10331 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10341 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10344 return CoTaskMemAlloc (size);
10346 return g_try_malloc ((gulong)size);
10351 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10354 CoTaskMemFree (ptr);
10361 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10364 return CoTaskMemRealloc (ptr, size);
10366 return g_try_realloc (ptr, (gulong)size);
10371 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10373 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10377 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10379 MonoClass *klass = mono_type_get_class (type->type);
10380 if (!mono_class_init (klass)) {
10381 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10385 return mono_ftnptr_to_delegate (klass, ftn);
10389 * mono_marshal_is_loading_type_info:
10391 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10395 mono_marshal_is_loading_type_info (MonoClass *klass)
10397 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10399 return g_slist_find (loads_list, klass) != NULL;
10403 * mono_marshal_load_type_info:
10405 * Initialize klass->marshal_info using information from metadata. This function can
10406 * recursively call itself, and the caller is responsible to avoid that by calling
10407 * mono_marshal_is_loading_type_info () beforehand.
10409 * LOCKING: Acquires the loader lock.
10412 mono_marshal_load_type_info (MonoClass* klass)
10415 guint32 native_size = 0, min_align = 1, packing;
10416 MonoMarshalType *info;
10417 MonoClassField* field;
10420 GSList *loads_list;
10422 g_assert (klass != NULL);
10424 if (klass->marshal_info)
10425 return klass->marshal_info;
10427 if (!klass->inited)
10428 mono_class_init (klass);
10430 if (klass->marshal_info)
10431 return klass->marshal_info;
10434 * This function can recursively call itself, so we keep the list of classes which are
10435 * under initialization in a TLS list.
10437 g_assert (!mono_marshal_is_loading_type_info (klass));
10438 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10439 loads_list = g_slist_prepend (loads_list, klass);
10440 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10443 while ((field = mono_class_get_fields (klass, &iter))) {
10444 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10446 if (mono_field_is_deleted (field))
10451 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10453 /* The mempool is protected by the loader lock */
10454 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10455 info->num_fields = count;
10457 /* Try to find a size for this type in metadata */
10458 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10460 if (klass->parent) {
10461 int parent_size = mono_class_native_size (klass->parent, NULL);
10463 /* Add parent size to real size */
10464 native_size += parent_size;
10465 info->native_size = parent_size;
10468 packing = klass->packing_size ? klass->packing_size : 8;
10471 while ((field = mono_class_get_fields (klass, &iter))) {
10475 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10478 if (mono_field_is_deleted (field))
10480 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10481 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10482 NULL, NULL, &info->fields [j].mspec);
10484 info->fields [j].field = field;
10486 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10487 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10488 /* This field is a hack inserted by MCS to empty structures */
10493 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10494 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10495 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10496 &align, TRUE, klass->unicode);
10497 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10498 min_align = MAX (align, min_align);
10499 info->fields [j].offset = info->native_size;
10500 info->fields [j].offset += align - 1;
10501 info->fields [j].offset &= ~(align - 1);
10502 info->native_size = info->fields [j].offset + size;
10504 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10505 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10506 &align, TRUE, klass->unicode);
10507 min_align = MAX (align, min_align);
10508 info->fields [j].offset = field->offset - sizeof (MonoObject);
10509 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10515 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10516 info->native_size = MAX (native_size, info->native_size);
10518 * If the provided Size is equal or larger than the calculated size, and there
10519 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10521 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10522 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10525 min_align = MIN (min_align, packing);
10529 if (info->native_size & (min_align - 1)) {
10530 info->native_size += min_align - 1;
10531 info->native_size &= ~(min_align - 1);
10534 info->min_align = min_align;
10536 /* Update the class's blittable info, if the layouts don't match */
10537 if (info->native_size != mono_class_value_size (klass, NULL))
10538 klass->blittable = FALSE;
10540 /* If this is an array type, ensure that we have element info */
10541 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10542 mono_marshal_load_type_info (klass->element_class);
10545 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10546 loads_list = g_slist_remove (loads_list, klass);
10547 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10549 mono_marshal_lock ();
10550 if (!klass->marshal_info) {
10551 /*We do double-checking locking on marshal_info */
10552 mono_memory_barrier ();
10553 klass->marshal_info = info;
10555 mono_marshal_unlock ();
10557 return klass->marshal_info;
10561 * mono_class_native_size:
10564 * Returns: the native size of an object instance (when marshaled
10565 * to unmanaged code)
10568 mono_class_native_size (MonoClass *klass, guint32 *align)
10570 if (!klass->marshal_info) {
10571 if (mono_marshal_is_loading_type_info (klass)) {
10576 mono_marshal_load_type_info (klass);
10581 *align = klass->marshal_info->min_align;
10583 return klass->marshal_info->native_size;
10587 * mono_type_native_stack_size:
10588 * @t: the type to return the size it uses on the stack
10590 * Returns: the number of bytes required to hold an instance of this
10591 * type on the native stack
10594 mono_type_native_stack_size (MonoType *t, guint32 *align)
10598 g_assert (t != NULL);
10604 *align = sizeof (gpointer);
10605 return sizeof (gpointer);
10609 case MONO_TYPE_BOOLEAN:
10610 case MONO_TYPE_CHAR:
10621 case MONO_TYPE_STRING:
10622 case MONO_TYPE_OBJECT:
10623 case MONO_TYPE_CLASS:
10624 case MONO_TYPE_SZARRAY:
10625 case MONO_TYPE_PTR:
10626 case MONO_TYPE_FNPTR:
10627 case MONO_TYPE_ARRAY:
10628 *align = sizeof (gpointer);
10629 return sizeof (gpointer);
10634 *align = MONO_ABI_ALIGNOF (double);
10638 *align = MONO_ABI_ALIGNOF (gint64);
10640 case MONO_TYPE_GENERICINST:
10641 if (!mono_type_generic_inst_is_valuetype (t)) {
10642 *align = sizeof (gpointer);
10643 return sizeof (gpointer);
10646 case MONO_TYPE_TYPEDBYREF:
10647 case MONO_TYPE_VALUETYPE: {
10649 MonoClass *klass = mono_class_from_mono_type (t);
10651 if (klass->enumtype)
10652 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10654 size = mono_class_native_size (klass, align);
10655 *align = *align + 3;
10665 g_error ("type 0x%02x unknown", t->type);
10671 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10672 gboolean as_field, gboolean unicode)
10674 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10677 switch (native_type) {
10678 case MONO_NATIVE_BOOLEAN:
10681 case MONO_NATIVE_I1:
10682 case MONO_NATIVE_U1:
10685 case MONO_NATIVE_I2:
10686 case MONO_NATIVE_U2:
10687 case MONO_NATIVE_VARIANTBOOL:
10690 case MONO_NATIVE_I4:
10691 case MONO_NATIVE_U4:
10692 case MONO_NATIVE_ERROR:
10695 case MONO_NATIVE_I8:
10696 case MONO_NATIVE_U8:
10697 *align = MONO_ABI_ALIGNOF (gint64);
10699 case MONO_NATIVE_R4:
10702 case MONO_NATIVE_R8:
10703 *align = MONO_ABI_ALIGNOF (double);
10705 case MONO_NATIVE_INT:
10706 case MONO_NATIVE_UINT:
10707 case MONO_NATIVE_LPSTR:
10708 case MONO_NATIVE_LPWSTR:
10709 case MONO_NATIVE_LPTSTR:
10710 case MONO_NATIVE_BSTR:
10711 case MONO_NATIVE_ANSIBSTR:
10712 case MONO_NATIVE_TBSTR:
10713 case MONO_NATIVE_LPARRAY:
10714 case MONO_NATIVE_SAFEARRAY:
10715 case MONO_NATIVE_IUNKNOWN:
10716 case MONO_NATIVE_IDISPATCH:
10717 case MONO_NATIVE_INTERFACE:
10718 case MONO_NATIVE_ASANY:
10719 case MONO_NATIVE_FUNC:
10720 case MONO_NATIVE_LPSTRUCT:
10721 *align = MONO_ABI_ALIGNOF (gpointer);
10722 return sizeof (gpointer);
10723 case MONO_NATIVE_STRUCT:
10724 klass = mono_class_from_mono_type (type);
10725 if (klass == mono_defaults.object_class &&
10726 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10730 return mono_class_native_size (klass, align);
10731 case MONO_NATIVE_BYVALTSTR: {
10732 int esize = unicode ? 2: 1;
10735 return mspec->data.array_data.num_elem * esize;
10737 case MONO_NATIVE_BYVALARRAY: {
10738 // FIXME: Have to consider ArraySubType
10740 klass = mono_class_from_mono_type (type);
10741 if (klass->element_class == mono_defaults.char_class) {
10742 esize = unicode ? 2 : 1;
10745 esize = mono_class_native_size (klass->element_class, align);
10748 return mspec->data.array_data.num_elem * esize;
10750 case MONO_NATIVE_CUSTOM:
10751 *align = sizeof (gpointer);
10752 return sizeof (gpointer);
10754 case MONO_NATIVE_CURRENCY:
10755 case MONO_NATIVE_VBBYREFSTR:
10757 g_error ("native type %02x not implemented", native_type);
10760 g_assert_not_reached ();
10765 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10773 t = &o->vtable->klass->byval_arg;
10777 case MONO_TYPE_PTR:
10780 case MONO_TYPE_BOOLEAN:
10783 case MONO_TYPE_CHAR:
10788 return mono_object_unbox (o);
10790 case MONO_TYPE_STRING:
10791 switch (string_encoding) {
10792 case MONO_NATIVE_LPWSTR:
10793 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10795 case MONO_NATIVE_LPSTR:
10796 return mono_string_to_lpstr ((MonoString*)o);
10799 g_warning ("marshaling conversion %d not implemented", string_encoding);
10800 g_assert_not_reached ();
10803 case MONO_TYPE_CLASS:
10804 case MONO_TYPE_VALUETYPE: {
10805 MonoMethod *method;
10808 MonoBoolean delete_old = FALSE;
10810 klass = t->data.klass;
10812 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10815 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10816 klass->blittable || klass->enumtype))
10817 return mono_object_unbox (o);
10819 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10821 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10822 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10826 pa [2] = &delete_old;
10828 mono_runtime_invoke (method, NULL, pa, NULL);
10835 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10841 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10849 t = &o->vtable->klass->byval_arg;
10851 case MONO_TYPE_STRING:
10852 switch (string_encoding) {
10853 case MONO_NATIVE_LPWSTR:
10854 case MONO_NATIVE_LPSTR:
10855 mono_marshal_free (ptr);
10858 g_warning ("marshaling conversion %d not implemented", string_encoding);
10859 g_assert_not_reached ();
10862 case MONO_TYPE_CLASS:
10863 case MONO_TYPE_VALUETYPE: {
10864 klass = t->data.klass;
10866 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10867 klass->blittable || klass->enumtype))
10870 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10871 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10877 mono_runtime_invoke (method, NULL, pa, NULL);
10880 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10881 mono_struct_delete_old (klass, ptr);
10884 mono_marshal_free (ptr);
10893 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10895 MonoMethodSignature *sig, *csig;
10896 MonoMethodBuilder *mb;
10901 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10902 mb->method->slot = -1;
10904 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10905 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10907 sig = mono_method_signature (method);
10908 csig = signature_dup (method->klass->image, sig);
10909 csig->generic_param_count = 0;
10911 #ifndef DISABLE_JIT
10912 mono_mb_emit_ldarg (mb, 0);
10913 for (i = 0; i < csig->param_count; i++)
10914 mono_mb_emit_ldarg (mb, i + 1);
10915 mono_mb_emit_managed_call (mb, method, NULL);
10916 mono_mb_emit_byte (mb, CEE_RET);
10918 /* We can corlib internal methods */
10919 mb->skip_visibility = TRUE;
10921 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10922 info->d.generic_array_helper.method = method;
10923 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10931 * The mono_win32_compat_* functions are implementations of inline
10932 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10933 * although not exported by kernel32.
10935 * We map the appropiate kernel32 entries to these functions using
10936 * dllmaps declared in the global etc/mono/config.
10940 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10942 if (!dest || !source)
10945 memcpy (dest, source, length);
10949 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10951 memset (dest, fill, length);
10955 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10957 if (!dest || !source)
10960 memmove (dest, source, length);
10964 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10966 memset (dest, 0, length);
10970 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10975 for (i = 0; i < len; ++i)
10979 g_assert (i < len);
10982 while (byte && !(byte & 1))
10984 g_assert (byte == 1);
10987 *bitmask = buf [i];
10991 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10993 MonoMethodBuilder *mb;
10994 MonoMethodSignature *sig, *csig;
10995 MonoExceptionClause *clause;
11000 int i, param_count, sig_size, pos_leave;
11004 klass = method->klass;
11005 image = method->klass->image;
11006 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11008 if ((res = mono_marshal_find_in_cache (cache, method)))
11011 sig = mono_method_signature (method);
11012 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11014 /* add "this" and exception param */
11015 param_count = sig->param_count + sig->hasthis + 1;
11017 /* dup & extend signature */
11018 csig = mono_metadata_signature_alloc (image, param_count);
11019 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11020 memcpy (csig, sig, sig_size);
11021 csig->param_count = param_count;
11024 csig->call_convention = MONO_CALL_DEFAULT;
11026 if (sig->hasthis) {
11028 csig->params [0] = &klass->byval_arg;
11029 /* move params up by one */
11030 for (i = 0; i < sig->param_count; i++)
11031 csig->params [i + 1] = sig->params [i];
11034 /* setup exception param as byref+[out] */
11035 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11036 &mono_defaults.exception_class->byval_arg);
11037 csig->params [param_count - 1]->byref = 1;
11038 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11040 /* convert struct return to object */
11041 if (MONO_TYPE_ISSTRUCT (sig->ret))
11042 csig->ret = &mono_defaults.object_class->byval_arg;
11044 #ifndef DISABLE_JIT
11045 /* local 0 (temp for exception object) */
11046 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11048 /* local 1 (temp for result) */
11049 if (!MONO_TYPE_IS_VOID (sig->ret))
11050 mono_mb_add_local (mb, sig->ret);
11052 /* clear exception arg */
11053 mono_mb_emit_ldarg (mb, param_count - 1);
11054 mono_mb_emit_byte (mb, CEE_LDNULL);
11055 mono_mb_emit_byte (mb, CEE_STIND_REF);
11058 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11059 clause->try_offset = mono_mb_get_label (mb);
11061 /* push method's args */
11062 for (i = 0; i < param_count - 1; i++) {
11066 mono_mb_emit_ldarg (mb, i);
11068 /* get the byval type of the param */
11069 klass = mono_class_from_mono_type (csig->params [i]);
11070 type = &klass->byval_arg;
11072 /* unbox struct args */
11073 if (MONO_TYPE_ISSTRUCT (type)) {
11074 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11076 /* byref args & and the "this" arg must remain a ptr.
11077 Otherwise make a copy of the value type */
11078 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11079 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11081 csig->params [i] = &mono_defaults.object_class->byval_arg;
11086 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11087 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11089 mono_mb_emit_op (mb, CEE_CALL, method);
11091 /* save result at local 1 */
11092 if (!MONO_TYPE_IS_VOID (sig->ret))
11093 mono_mb_emit_stloc (mb, 1);
11095 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11098 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11099 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11100 clause->data.catch_class = mono_defaults.object_class;
11102 clause->handler_offset = mono_mb_get_label (mb);
11104 /* store exception at local 0 */
11105 mono_mb_emit_stloc (mb, 0);
11106 mono_mb_emit_ldarg (mb, param_count - 1);
11107 mono_mb_emit_ldloc (mb, 0);
11108 mono_mb_emit_byte (mb, CEE_STIND_REF);
11109 mono_mb_emit_branch (mb, CEE_LEAVE);
11111 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11113 mono_mb_set_clauses (mb, 1, clause);
11115 mono_mb_patch_branch (mb, pos_leave);
11118 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11119 mono_mb_emit_ldloc (mb, 1);
11121 /* box the return value */
11122 if (MONO_TYPE_ISSTRUCT (sig->ret))
11123 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11126 mono_mb_emit_byte (mb, CEE_RET);
11129 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11136 * mono_marshal_free_dynamic_wrappers:
11138 * Free wrappers of the dynamic method METHOD.
11141 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11143 MonoImage *image = method->klass->image;
11145 g_assert (method_is_dynamic (method));
11147 /* This could be called during shutdown */
11148 if (marshal_mutex_initialized)
11149 mono_marshal_lock ();
11151 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11152 * they could be shared with other methods ?
11154 if (image->runtime_invoke_direct_cache)
11155 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11156 if (image->delegate_abstract_invoke_cache)
11157 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11158 // FIXME: Need to clear the caches in other images as well
11159 if (image->delegate_bound_static_invoke_cache)
11160 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11162 if (marshal_mutex_initialized)
11163 mono_marshal_unlock ();
11167 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11169 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11170 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11172 return mono_metadata_signature_equal (pair->sig, sig);
11176 * mono_marshal_free_inflated_wrappers:
11178 * Free wrappers of the inflated method METHOD.
11181 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11183 MonoMethodSignature *sig = method->signature;
11185 g_assert (method->is_inflated);
11187 /* Ignore calls occuring late during cleanup. */
11188 if (!marshal_mutex_initialized)
11191 mono_marshal_lock ();
11193 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11194 * they could be shared with other methods ?
11198 * indexed by MonoMethodSignature
11200 /* FIXME: This could remove unrelated wrappers as well */
11201 if (sig && method->klass->image->delegate_begin_invoke_cache)
11202 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11203 if (sig && method->klass->image->delegate_end_invoke_cache)
11204 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11205 if (sig && method->klass->image->delegate_invoke_cache)
11206 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11207 if (sig && method->klass->image->runtime_invoke_cache)
11208 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11209 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11210 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11213 * indexed by SignaturePointerPair
11215 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11216 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11217 signature_pointer_pair_matches_signature, (gpointer)sig);
11220 * indexed by MonoMethod pointers
11222 if (method->klass->image->runtime_invoke_direct_cache)
11223 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11224 if (method->klass->image->managed_wrapper_cache)
11225 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11226 if (method->klass->image->native_wrapper_cache)
11227 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11228 if (method->klass->image->remoting_invoke_cache)
11229 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11230 if (method->klass->image->synchronized_cache)
11231 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11232 if (method->klass->image->unbox_wrapper_cache)
11233 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11234 if (method->klass->image->cominterop_invoke_cache)
11235 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11236 if (method->klass->image->cominterop_wrapper_cache)
11237 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11238 if (method->klass->image->thunk_invoke_cache)
11239 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11240 if (method->klass->image->native_func_wrapper_aot_cache)
11241 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11243 mono_marshal_unlock ();