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 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
632 for(i = 0; i < array->max_length; ++i)
633 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
640 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
642 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
644 if (elclass == mono_defaults.byte_class) {
645 GError *error = NULL;
649 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
652 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
656 g_error_free (error);
659 g_assert_not_reached ();
663 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
665 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
669 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
671 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
673 if (elclass == mono_defaults.byte_class) {
675 GError *error = NULL;
677 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
679 MonoException *exc = mono_get_exception_argument ("string", error->message);
680 g_error_free (error);
681 mono_raise_exception (exc);
684 memcpy (native_arr, as, MIN (strlen (as), elnum));
687 g_assert_not_reached ();
692 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
694 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
697 static MonoStringBuilder *
698 mono_string_builder_new (int starting_string_length)
700 static MonoClass *string_builder_class;
701 static MonoMethod *sb_ctor;
702 static void *args [1];
703 int initial_len = starting_string_length;
708 if (!string_builder_class) {
709 MonoMethodDesc *desc;
711 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
712 g_assert (string_builder_class);
713 desc = mono_method_desc_new (":.ctor(int)", FALSE);
714 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
716 mono_method_desc_free (desc);
718 // We make a new array in the _to_builder function, so this
719 // array will always be garbage collected.
720 args [0] = &initial_len;
723 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
727 mono_runtime_invoke (sb_ctor, sb, args, &exc);
729 g_assert (sb->chunkChars->max_length >= initial_len);
736 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
738 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
739 gunichar2 *charSrc = (gunichar2 *)text;
740 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
742 sb->chunkLength = string_len;
748 mono_string_utf16_to_builder2 (gunichar2 *text)
754 for (len = 0; text [len] != 0; ++len);
756 MonoStringBuilder *sb = mono_string_builder_new (len);
757 mono_string_utf16_to_builder (sb, text);
763 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
768 int len = strlen (text);
769 if (len > mono_string_builder_capacity (sb))
770 len = mono_string_builder_capacity (sb);
772 GError *error = NULL;
774 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
777 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
778 mono_string_utf16_to_builder_copy (sb, ut, copied);
780 g_error_free (error);
786 mono_string_utf8_to_builder2 (char *text)
791 int len = strlen (text);
792 MonoStringBuilder *sb = mono_string_builder_new (len);
793 mono_string_utf8_to_builder (sb, text);
800 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
806 for (len = 0; text [len] != 0; ++len);
808 if (len > mono_string_builder_capacity (sb))
809 len = mono_string_builder_capacity (sb);
811 mono_string_utf16_to_builder_copy (sb, text, len);
815 * mono_string_builder_to_utf8:
816 * @sb: the string builder
818 * Converts to utf8 the contents of the MonoStringBuilder.
820 * Returns: a utf8 string with the contents of the StringBuilder.
822 * The return value must be released with g_free.
825 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
827 GError *error = NULL;
833 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
835 guint str_len = mono_string_builder_string_length (sb);
837 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
840 g_error_free (error);
842 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
845 guint len = mono_string_builder_capacity (sb) + 1;
846 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
847 g_assert (str_len < len);
848 memcpy (res, tmp, str_len * sizeof (gchar));
859 * mono_string_builder_to_utf16:
860 * @sb: the string builder
862 * Converts to utf16 the contents of the MonoStringBuilder.
864 * Returns: a utf16 string with the contents of the StringBuilder.
866 * The return value must not be freed.
869 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
874 g_assert (sb->chunkChars);
876 guint len = mono_string_builder_capacity (sb);
881 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
887 MonoStringBuilder* chunk = sb;
889 if (chunk->chunkLength > 0) {
890 // Check that we will not overrun our boundaries.
891 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
893 if (chunk->chunkLength <= len) {
894 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
896 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
899 len -= chunk->chunkLength;
901 chunk = chunk->chunkPrevious;
902 } while (chunk != NULL);
908 mono_string_to_lpstr (MonoString *s)
913 GError *error = NULL;
919 as = CoTaskMemAlloc (1);
924 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
926 MonoException *exc = mono_get_exception_argument ("string", error->message);
927 g_error_free (error);
928 mono_raise_exception(exc);
931 as = CoTaskMemAlloc (len + 1);
932 memcpy (as, tmp, len + 1);
937 return mono_string_to_utf8 (s);
942 mono_string_to_ansibstr (MonoString *string_obj)
944 g_error ("UnmanagedMarshal.BStr is not implemented.");
949 * mono_string_to_byvalstr:
950 * @dst: Where to store the null-terminated utf8 decoded string.
951 * @src: the MonoString to copy.
952 * @size: the maximum number of bytes to copy.
954 * Copies the MonoString pointed to by @src as a utf8 string
955 * into @dst, it copies at most @size bytes into the destination.
958 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
963 g_assert (dst != NULL);
966 memset (dst, 0, size);
970 s = mono_string_to_utf8 (src);
971 len = MIN (size, strlen (s));
974 memcpy (dst, s, len);
979 * mono_string_to_byvalwstr:
980 * @dst: Where to store the null-terminated utf16 decoded string.
981 * @src: the MonoString to copy.
982 * @size: the maximum number of bytes to copy.
984 * Copies the MonoString pointed to by @src as a utf16 string into
985 * @dst, it copies at most @size bytes into the destination (including
986 * a terminating 16-bit zero terminator).
989 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
993 g_assert (dst != NULL);
997 memset (dst, 0, size * 2);
1001 len = MIN (size, (mono_string_length (src)));
1002 memcpy (dst, mono_string_chars (src), size * 2);
1003 if (size <= mono_string_length (src))
1005 *((gunichar2 *) dst + len) = 0;
1009 mono_string_new_len_wrapper (const char *text, guint length)
1011 return mono_string_new_len (mono_domain_get (), text, length);
1017 * mono_mb_emit_exception_marshal_directive:
1019 * This function assumes ownership of MSG, which should be malloc-ed.
1022 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1027 s = mono_image_strdup (mb->method->klass->image, msg);
1032 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1035 #endif /* !DISABLE_JIT */
1038 mono_type_to_ldind (MonoType *type)
1044 switch (type->type) {
1046 return CEE_LDIND_I1;
1048 case MONO_TYPE_BOOLEAN:
1049 return CEE_LDIND_U1;
1051 return CEE_LDIND_I2;
1053 case MONO_TYPE_CHAR:
1054 return CEE_LDIND_U2;
1056 return CEE_LDIND_I4;
1058 return CEE_LDIND_U4;
1062 case MONO_TYPE_FNPTR:
1064 case MONO_TYPE_CLASS:
1065 case MONO_TYPE_STRING:
1066 case MONO_TYPE_OBJECT:
1067 case MONO_TYPE_SZARRAY:
1068 case MONO_TYPE_ARRAY:
1069 return CEE_LDIND_REF;
1072 return CEE_LDIND_I8;
1074 return CEE_LDIND_R4;
1076 return CEE_LDIND_R8;
1077 case MONO_TYPE_VALUETYPE:
1078 if (type->data.klass->enumtype) {
1079 type = mono_class_enum_basetype (type->data.klass);
1083 case MONO_TYPE_TYPEDBYREF:
1085 case MONO_TYPE_GENERICINST:
1086 type = &type->data.generic_class->container_class->byval_arg;
1089 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1095 mono_type_to_stind (MonoType *type)
1101 switch (type->type) {
1104 case MONO_TYPE_BOOLEAN:
1105 return CEE_STIND_I1;
1108 case MONO_TYPE_CHAR:
1109 return CEE_STIND_I2;
1112 return CEE_STIND_I4;
1116 case MONO_TYPE_FNPTR:
1118 case MONO_TYPE_CLASS:
1119 case MONO_TYPE_STRING:
1120 case MONO_TYPE_OBJECT:
1121 case MONO_TYPE_SZARRAY:
1122 case MONO_TYPE_ARRAY:
1123 return CEE_STIND_REF;
1126 return CEE_STIND_I8;
1128 return CEE_STIND_R4;
1130 return CEE_STIND_R8;
1131 case MONO_TYPE_VALUETYPE:
1132 if (type->data.klass->enumtype) {
1133 type = mono_class_enum_basetype (type->data.klass);
1137 case MONO_TYPE_TYPEDBYREF:
1139 case MONO_TYPE_GENERICINST:
1140 type = &type->data.generic_class->container_class->byval_arg;
1143 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1151 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1154 case MONO_MARSHAL_CONV_BOOL_I4:
1155 mono_mb_emit_ldloc (mb, 1);
1156 mono_mb_emit_ldloc (mb, 0);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1158 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1159 mono_mb_emit_byte (mb, 3);
1160 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1161 mono_mb_emit_byte (mb, CEE_BR_S);
1162 mono_mb_emit_byte (mb, 1);
1163 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1164 mono_mb_emit_byte (mb, CEE_STIND_I1);
1166 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1167 mono_mb_emit_ldloc (mb, 1);
1168 mono_mb_emit_ldloc (mb, 0);
1169 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1170 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1171 mono_mb_emit_byte (mb, 3);
1172 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1173 mono_mb_emit_byte (mb, CEE_BR_S);
1174 mono_mb_emit_byte (mb, 1);
1175 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1176 mono_mb_emit_byte (mb, CEE_STIND_I1);
1178 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1179 MonoClass *eklass = NULL;
1182 if (type->type == MONO_TYPE_SZARRAY) {
1183 eklass = type->data.klass;
1185 g_assert_not_reached ();
1188 esize = mono_class_native_size (eklass, NULL);
1190 /* create a new array */
1191 mono_mb_emit_ldloc (mb, 1);
1192 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1193 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1194 mono_mb_emit_byte (mb, CEE_STIND_I);
1196 if (eklass->blittable) {
1197 /* copy the elements */
1198 mono_mb_emit_ldloc (mb, 1);
1199 mono_mb_emit_byte (mb, CEE_LDIND_I);
1200 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1201 mono_mb_emit_byte (mb, CEE_ADD);
1202 mono_mb_emit_ldloc (mb, 0);
1203 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1204 mono_mb_emit_byte (mb, CEE_PREFIX1);
1205 mono_mb_emit_byte (mb, CEE_CPBLK);
1208 int array_var, src_var, dst_var, index_var;
1209 guint32 label2, label3;
1211 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1212 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1213 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1216 mono_mb_emit_ldloc (mb, 1);
1217 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1218 mono_mb_emit_stloc (mb, array_var);
1220 /* save the old src pointer */
1221 mono_mb_emit_ldloc (mb, 0);
1222 mono_mb_emit_stloc (mb, src_var);
1223 /* save the old dst pointer */
1224 mono_mb_emit_ldloc (mb, 1);
1225 mono_mb_emit_stloc (mb, dst_var);
1227 /* Emit marshalling loop */
1228 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1229 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1230 mono_mb_emit_stloc (mb, index_var);
1233 label2 = mono_mb_get_label (mb);
1234 mono_mb_emit_ldloc (mb, index_var);
1235 mono_mb_emit_ldloc (mb, array_var);
1236 mono_mb_emit_byte (mb, CEE_LDLEN);
1237 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1239 /* src is already set */
1242 mono_mb_emit_ldloc (mb, array_var);
1243 mono_mb_emit_ldloc (mb, index_var);
1244 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1245 mono_mb_emit_stloc (mb, 1);
1247 /* Do the conversion */
1248 emit_struct_conv (mb, eklass, TRUE);
1251 mono_mb_emit_add_to_local (mb, index_var, 1);
1253 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1255 mono_mb_patch_branch (mb, label3);
1257 /* restore the old src pointer */
1258 mono_mb_emit_ldloc (mb, src_var);
1259 mono_mb_emit_stloc (mb, 0);
1260 /* restore the old dst pointer */
1261 mono_mb_emit_ldloc (mb, dst_var);
1262 mono_mb_emit_stloc (mb, 1);
1266 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1267 MonoClass *eclass = mono_defaults.char_class;
1269 /* create a new array */
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1272 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1273 mono_mb_emit_byte (mb, CEE_STIND_REF);
1275 mono_mb_emit_ldloc (mb, 1);
1276 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1277 mono_mb_emit_ldloc (mb, 0);
1278 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1279 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1282 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1283 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1284 mono_mb_emit_ldloc (mb, 1);
1285 mono_mb_emit_ldloc (mb, 0);
1286 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1287 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1289 mono_mb_emit_ldloc (mb, 1);
1290 mono_mb_emit_ldloc (mb, 0);
1291 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1293 mono_mb_emit_byte (mb, CEE_STIND_REF);
1295 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1296 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1297 mono_mb_emit_ldloc (mb, 1);
1298 mono_mb_emit_ldloc (mb, 0);
1299 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1300 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1302 mono_mb_emit_ldloc (mb, 1);
1303 mono_mb_emit_ldloc (mb, 0);
1304 mono_mb_emit_icall (mb, mono_string_from_utf16);
1306 mono_mb_emit_byte (mb, CEE_STIND_REF);
1308 case MONO_MARSHAL_CONV_STR_LPTSTR:
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_ldloc (mb, 0);
1311 mono_mb_emit_byte (mb, CEE_LDIND_I);
1313 mono_mb_emit_icall (mb, mono_string_from_utf16);
1315 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1317 mono_mb_emit_byte (mb, CEE_STIND_REF);
1319 case MONO_MARSHAL_CONV_STR_LPSTR:
1320 mono_mb_emit_ldloc (mb, 1);
1321 mono_mb_emit_ldloc (mb, 0);
1322 mono_mb_emit_byte (mb, CEE_LDIND_I);
1323 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1324 mono_mb_emit_byte (mb, CEE_STIND_REF);
1326 case MONO_MARSHAL_CONV_STR_LPWSTR:
1327 mono_mb_emit_ldloc (mb, 1);
1328 mono_mb_emit_ldloc (mb, 0);
1329 mono_mb_emit_byte (mb, CEE_LDIND_I);
1330 mono_mb_emit_icall (mb, mono_string_from_utf16);
1331 mono_mb_emit_byte (mb, CEE_STIND_REF);
1333 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1334 MonoClass *klass = mono_class_from_mono_type (type);
1335 int src_var, dst_var;
1337 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1338 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1340 /* *dst = new object */
1341 mono_mb_emit_ldloc (mb, 1);
1342 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1343 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1344 mono_mb_emit_byte (mb, CEE_STIND_REF);
1346 /* save the old src pointer */
1347 mono_mb_emit_ldloc (mb, 0);
1348 mono_mb_emit_stloc (mb, src_var);
1349 /* save the old dst pointer */
1350 mono_mb_emit_ldloc (mb, 1);
1351 mono_mb_emit_stloc (mb, dst_var);
1353 /* dst = pointer to newly created object data */
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_byte (mb, CEE_LDIND_I);
1356 mono_mb_emit_icon (mb, sizeof (MonoObject));
1357 mono_mb_emit_byte (mb, CEE_ADD);
1358 mono_mb_emit_stloc (mb, 1);
1360 emit_struct_conv (mb, klass, TRUE);
1362 /* restore the old src pointer */
1363 mono_mb_emit_ldloc (mb, src_var);
1364 mono_mb_emit_stloc (mb, 0);
1365 /* restore the old dst pointer */
1366 mono_mb_emit_ldloc (mb, dst_var);
1367 mono_mb_emit_stloc (mb, 1);
1370 case MONO_MARSHAL_CONV_DEL_FTN: {
1371 MonoClass *klass = mono_class_from_mono_type (type);
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1375 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_byte (mb, CEE_LDIND_I);
1378 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1379 mono_mb_emit_byte (mb, CEE_STIND_REF);
1382 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1383 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1387 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1388 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1389 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1390 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1392 #endif /* DISABLE_COM */
1394 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1396 * Passing SafeHandles as ref does not allow the unmanaged code
1397 * to change the SafeHandle value. If the value is changed,
1398 * we should issue a diagnostic exception (NotSupportedException)
1399 * that informs the user that changes to handles in unmanaged code
1402 * Since we currently have no access to the original
1403 * SafeHandle that was used during the marshalling,
1404 * for now we just ignore this, and ignore/discard any
1405 * changes that might have happened to the handle.
1410 case MONO_MARSHAL_CONV_HANDLEREF: {
1412 * Passing HandleRefs in a struct that is ref()ed does not
1413 * copy the values back to the HandleRef
1418 case MONO_MARSHAL_CONV_STR_BSTR:
1419 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1420 case MONO_MARSHAL_CONV_STR_TBSTR:
1421 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1423 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1425 mono_mb_emit_exception_marshal_directive (mb, msg);
1432 conv_to_icall (MonoMarshalConv conv)
1435 case MONO_MARSHAL_CONV_STR_LPWSTR:
1436 return mono_marshal_string_to_utf16;
1437 case MONO_MARSHAL_CONV_LPWSTR_STR:
1438 return mono_string_from_utf16;
1439 case MONO_MARSHAL_CONV_LPTSTR_STR:
1440 return mono_string_new_wrapper;
1441 case MONO_MARSHAL_CONV_LPSTR_STR:
1442 return mono_string_new_wrapper;
1443 case MONO_MARSHAL_CONV_STR_LPTSTR:
1445 return mono_marshal_string_to_utf16;
1447 return mono_string_to_lpstr;
1449 case MONO_MARSHAL_CONV_STR_LPSTR:
1450 return mono_string_to_lpstr;
1451 case MONO_MARSHAL_CONV_STR_BSTR:
1452 return mono_string_to_bstr;
1453 case MONO_MARSHAL_CONV_BSTR_STR:
1454 return mono_string_from_bstr;
1455 case MONO_MARSHAL_CONV_STR_TBSTR:
1456 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1457 return mono_string_to_ansibstr;
1458 case MONO_MARSHAL_CONV_SB_LPSTR:
1459 return mono_string_builder_to_utf8;
1460 case MONO_MARSHAL_CONV_SB_LPTSTR:
1462 return mono_string_builder_to_utf16;
1464 return mono_string_builder_to_utf8;
1466 case MONO_MARSHAL_CONV_SB_LPWSTR:
1467 return mono_string_builder_to_utf16;
1468 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1469 return mono_array_to_savearray;
1470 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1471 return mono_array_to_lparray;
1472 case MONO_MARSHAL_FREE_LPARRAY:
1473 return mono_free_lparray;
1474 case MONO_MARSHAL_CONV_DEL_FTN:
1475 return mono_delegate_to_ftnptr;
1476 case MONO_MARSHAL_CONV_FTN_DEL:
1477 return mono_ftnptr_to_delegate;
1478 case MONO_MARSHAL_CONV_LPSTR_SB:
1479 return mono_string_utf8_to_builder;
1480 case MONO_MARSHAL_CONV_LPTSTR_SB:
1482 return mono_string_utf16_to_builder;
1484 return mono_string_utf8_to_builder;
1486 case MONO_MARSHAL_CONV_LPWSTR_SB:
1487 return mono_string_utf16_to_builder;
1488 case MONO_MARSHAL_FREE_ARRAY:
1489 return mono_marshal_free_array;
1490 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1491 return mono_string_to_byvalstr;
1492 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1493 return mono_string_to_byvalwstr;
1495 g_assert_not_reached ();
1502 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1507 case MONO_MARSHAL_CONV_BOOL_I4:
1508 mono_mb_emit_ldloc (mb, 1);
1509 mono_mb_emit_ldloc (mb, 0);
1510 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1511 mono_mb_emit_byte (mb, CEE_STIND_I4);
1513 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1514 mono_mb_emit_ldloc (mb, 1);
1515 mono_mb_emit_ldloc (mb, 0);
1516 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1517 mono_mb_emit_byte (mb, CEE_NEG);
1518 mono_mb_emit_byte (mb, CEE_STIND_I2);
1520 case MONO_MARSHAL_CONV_STR_LPWSTR:
1521 case MONO_MARSHAL_CONV_STR_LPSTR:
1522 case MONO_MARSHAL_CONV_STR_LPTSTR:
1523 case MONO_MARSHAL_CONV_STR_BSTR:
1524 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1525 case MONO_MARSHAL_CONV_STR_TBSTR: {
1528 /* free space if free == true */
1529 mono_mb_emit_ldloc (mb, 2);
1530 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1531 mono_mb_emit_ldloc (mb, 1);
1532 mono_mb_emit_byte (mb, CEE_LDIND_I);
1533 mono_mb_emit_icall (mb, g_free);
1534 mono_mb_patch_short_branch (mb, pos);
1536 mono_mb_emit_ldloc (mb, 1);
1537 mono_mb_emit_ldloc (mb, 0);
1538 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1539 mono_mb_emit_icall (mb, conv_to_icall (conv));
1540 mono_mb_emit_byte (mb, CEE_STIND_I);
1543 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1544 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1545 case MONO_MARSHAL_CONV_DEL_FTN:
1546 mono_mb_emit_ldloc (mb, 1);
1547 mono_mb_emit_ldloc (mb, 0);
1548 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1549 mono_mb_emit_icall (mb, conv_to_icall (conv));
1550 mono_mb_emit_byte (mb, CEE_STIND_I);
1552 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1553 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1556 mono_mb_emit_ldloc (mb, 1); /* dst */
1557 mono_mb_emit_ldloc (mb, 0);
1558 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1559 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1560 mono_mb_emit_icall (mb, conv_to_icall (conv));
1563 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1564 MonoClass *eklass = NULL;
1567 if (type->type == MONO_TYPE_SZARRAY) {
1568 eklass = type->data.klass;
1570 g_assert_not_reached ();
1573 if (eklass->valuetype)
1574 esize = mono_class_native_size (eklass, NULL);
1576 esize = sizeof (gpointer);
1578 mono_mb_emit_ldloc (mb, 0);
1579 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1580 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1582 if (eklass->blittable) {
1583 mono_mb_emit_ldloc (mb, 1);
1584 mono_mb_emit_ldloc (mb, 0);
1585 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1586 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1587 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1588 mono_mb_emit_byte (mb, CEE_PREFIX1);
1589 mono_mb_emit_byte (mb, CEE_CPBLK);
1591 int array_var, src_var, dst_var, index_var;
1592 guint32 label2, label3;
1594 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1595 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1596 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1599 mono_mb_emit_ldloc (mb, 0);
1600 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1601 mono_mb_emit_stloc (mb, array_var);
1603 /* save the old src pointer */
1604 mono_mb_emit_ldloc (mb, 0);
1605 mono_mb_emit_stloc (mb, src_var);
1606 /* save the old dst pointer */
1607 mono_mb_emit_ldloc (mb, 1);
1608 mono_mb_emit_stloc (mb, dst_var);
1610 /* Emit marshalling loop */
1611 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1612 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1613 mono_mb_emit_stloc (mb, index_var);
1616 label2 = mono_mb_get_label (mb);
1617 mono_mb_emit_ldloc (mb, index_var);
1618 mono_mb_emit_ldloc (mb, array_var);
1619 mono_mb_emit_byte (mb, CEE_LDLEN);
1620 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1623 mono_mb_emit_ldloc (mb, array_var);
1624 mono_mb_emit_ldloc (mb, index_var);
1625 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1626 mono_mb_emit_stloc (mb, 0);
1628 /* dst is already set */
1630 /* Do the conversion */
1631 emit_struct_conv (mb, eklass, FALSE);
1634 mono_mb_emit_add_to_local (mb, index_var, 1);
1636 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1638 mono_mb_patch_branch (mb, label3);
1640 /* restore the old src pointer */
1641 mono_mb_emit_ldloc (mb, src_var);
1642 mono_mb_emit_stloc (mb, 0);
1643 /* restore the old dst pointer */
1644 mono_mb_emit_ldloc (mb, dst_var);
1645 mono_mb_emit_stloc (mb, 1);
1648 mono_mb_patch_branch (mb, pos);
1651 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1652 mono_mb_emit_ldloc (mb, 0);
1653 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1654 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1656 mono_mb_emit_ldloc (mb, 1);
1657 mono_mb_emit_ldloc (mb, 0);
1658 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1659 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1660 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1661 mono_mb_patch_short_branch (mb, pos);
1664 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1665 int src_var, dst_var;
1667 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1668 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1670 mono_mb_emit_ldloc (mb, 0);
1671 mono_mb_emit_byte (mb, CEE_LDIND_I);
1672 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1674 /* save the old src pointer */
1675 mono_mb_emit_ldloc (mb, 0);
1676 mono_mb_emit_stloc (mb, src_var);
1677 /* save the old dst pointer */
1678 mono_mb_emit_ldloc (mb, 1);
1679 mono_mb_emit_stloc (mb, dst_var);
1681 /* src = pointer to object data */
1682 mono_mb_emit_ldloc (mb, 0);
1683 mono_mb_emit_byte (mb, CEE_LDIND_I);
1684 mono_mb_emit_icon (mb, sizeof (MonoObject));
1685 mono_mb_emit_byte (mb, CEE_ADD);
1686 mono_mb_emit_stloc (mb, 0);
1688 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1690 /* restore the old src pointer */
1691 mono_mb_emit_ldloc (mb, src_var);
1692 mono_mb_emit_stloc (mb, 0);
1693 /* restore the old dst pointer */
1694 mono_mb_emit_ldloc (mb, dst_var);
1695 mono_mb_emit_stloc (mb, 1);
1697 mono_mb_patch_branch (mb, pos);
1702 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1703 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1704 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1705 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1707 #endif /* DISABLE_COM */
1709 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1712 mono_mb_emit_ldloc (mb, 0);
1713 mono_mb_emit_byte (mb, CEE_LDIND_I);
1714 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1715 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1716 mono_mb_patch_branch (mb, pos);
1718 /* Pull the handle field from SafeHandle */
1719 mono_mb_emit_ldloc (mb, 1);
1720 mono_mb_emit_ldloc (mb, 0);
1721 mono_mb_emit_byte (mb, CEE_LDIND_I);
1722 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1723 mono_mb_emit_byte (mb, CEE_LDIND_I);
1724 mono_mb_emit_byte (mb, CEE_STIND_I);
1728 case MONO_MARSHAL_CONV_HANDLEREF: {
1729 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_ldloc (mb, 0);
1731 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1732 mono_mb_emit_byte (mb, CEE_ADD);
1733 mono_mb_emit_byte (mb, CEE_LDIND_I);
1734 mono_mb_emit_byte (mb, CEE_STIND_I);
1739 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1740 MonoException *exc = mono_get_exception_not_implemented (msg);
1741 g_warning ("%s", msg);
1743 mono_raise_exception (exc);
1749 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1750 MonoMarshalNative string_encoding)
1752 MonoMarshalType *info;
1756 emit_struct_conv(mb, klass->parent, to_object);
1758 info = mono_marshal_load_type_info (klass);
1760 if (info->native_size == 0)
1763 if (klass->blittable) {
1764 int msize = mono_class_value_size (klass, NULL);
1765 g_assert (msize == info->native_size);
1766 mono_mb_emit_ldloc (mb, 1);
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_icon (mb, msize);
1769 mono_mb_emit_byte (mb, CEE_PREFIX1);
1770 mono_mb_emit_byte (mb, CEE_CPBLK);
1772 mono_mb_emit_add_to_local (mb, 0, msize);
1773 mono_mb_emit_add_to_local (mb, 1, msize);
1777 if (klass != mono_defaults.safehandle_class) {
1778 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1779 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1780 mono_type_full_name (&klass->byval_arg));
1781 mono_mb_emit_exception_marshal_directive (mb, msg);
1786 for (i = 0; i < info->num_fields; i++) {
1787 MonoMarshalNative ntype;
1788 MonoMarshalConv conv;
1789 MonoType *ftype = info->fields [i].field->type;
1792 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1794 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1797 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1800 msize = klass->instance_size - info->fields [i].field->offset;
1801 usize = info->native_size - info->fields [i].offset;
1803 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1804 usize = info->fields [i + 1].offset - info->fields [i].offset;
1807 if (klass != mono_defaults.safehandle_class){
1809 * FIXME: Should really check for usize==0 and msize>0, but we apply
1810 * the layout to the managed structure as well.
1813 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1814 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1815 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1816 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1817 "reference field at the same offset as another field.",
1818 mono_type_full_name (&klass->byval_arg));
1823 case MONO_MARSHAL_CONV_NONE: {
1826 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1827 ftype->type == MONO_TYPE_U) {
1828 mono_mb_emit_ldloc (mb, 1);
1829 mono_mb_emit_ldloc (mb, 0);
1830 mono_mb_emit_byte (mb, CEE_LDIND_I);
1831 mono_mb_emit_byte (mb, CEE_STIND_I);
1842 case MONO_TYPE_BOOLEAN:
1845 case MONO_TYPE_CHAR:
1851 mono_mb_emit_ldloc (mb, 1);
1852 mono_mb_emit_ldloc (mb, 0);
1853 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1855 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1856 mono_mb_emit_byte (mb, CEE_STIND_I2);
1858 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1859 mono_mb_emit_byte (mb, CEE_STIND_I1);
1862 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1863 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1866 case MONO_TYPE_VALUETYPE: {
1867 int src_var, dst_var;
1869 if (ftype->data.klass->enumtype) {
1870 ftype = mono_class_enum_basetype (ftype->data.klass);
1874 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1875 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1877 /* save the old src pointer */
1878 mono_mb_emit_ldloc (mb, 0);
1879 mono_mb_emit_stloc (mb, src_var);
1880 /* save the old dst pointer */
1881 mono_mb_emit_ldloc (mb, 1);
1882 mono_mb_emit_stloc (mb, dst_var);
1884 emit_struct_conv (mb, ftype->data.klass, to_object);
1886 /* restore the old src pointer */
1887 mono_mb_emit_ldloc (mb, src_var);
1888 mono_mb_emit_stloc (mb, 0);
1889 /* restore the old dst pointer */
1890 mono_mb_emit_ldloc (mb, dst_var);
1891 mono_mb_emit_stloc (mb, 1);
1894 case MONO_TYPE_OBJECT: {
1897 static MonoMethod *variant_clear = NULL;
1898 static MonoMethod *get_object_for_native_variant = NULL;
1901 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1902 if (!get_object_for_native_variant)
1903 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1904 mono_mb_emit_ldloc (mb, 1);
1905 mono_mb_emit_ldloc (mb, 0);
1906 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1907 mono_mb_emit_byte (mb, CEE_STIND_REF);
1909 mono_mb_emit_ldloc (mb, 0);
1910 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1913 static MonoMethod *get_native_variant_for_object = NULL;
1915 if (!get_native_variant_for_object)
1916 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1918 mono_mb_emit_ldloc (mb, 0);
1919 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1920 mono_mb_emit_ldloc (mb, 1);
1921 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1924 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1925 mono_mb_emit_exception_marshal_directive (mb, msg);
1931 g_warning ("marshaling type %02x not implemented", ftype->type);
1932 g_assert_not_reached ();
1937 int src_var, dst_var;
1939 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1940 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1942 /* save the old src pointer */
1943 mono_mb_emit_ldloc (mb, 0);
1944 mono_mb_emit_stloc (mb, src_var);
1945 /* save the old dst pointer */
1946 mono_mb_emit_ldloc (mb, 1);
1947 mono_mb_emit_stloc (mb, dst_var);
1950 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1952 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1954 /* restore the old src pointer */
1955 mono_mb_emit_ldloc (mb, src_var);
1956 mono_mb_emit_stloc (mb, 0);
1957 /* restore the old dst pointer */
1958 mono_mb_emit_ldloc (mb, dst_var);
1959 mono_mb_emit_stloc (mb, 1);
1964 mono_mb_emit_add_to_local (mb, 0, usize);
1965 mono_mb_emit_add_to_local (mb, 1, msize);
1967 mono_mb_emit_add_to_local (mb, 0, msize);
1968 mono_mb_emit_add_to_local (mb, 1, usize);
1974 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1976 emit_struct_conv_full (mb, klass, to_object, -1);
1980 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1982 /* Call DestroyStructure */
1983 /* FIXME: Only do this if needed */
1984 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1985 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1986 mono_mb_emit_ldloc (mb, struct_var);
1987 mono_mb_emit_icall (mb, mono_struct_delete_old);
1991 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1993 int pos_noabort, pos_noex;
1995 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1996 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
1997 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1998 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2000 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2001 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2003 mono_mb_emit_icall (mb, checkpoint_func);
2004 /* Throw the exception returned by the checkpoint function, if any */
2005 mono_mb_emit_byte (mb, CEE_DUP);
2006 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2007 mono_mb_emit_byte (mb, CEE_THROW);
2008 mono_mb_patch_branch (mb, pos_noex);
2009 mono_mb_emit_byte (mb, CEE_POP);
2011 mono_mb_patch_branch (mb, pos_noabort);
2015 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2017 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2020 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2024 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2026 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2030 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2032 emit_thread_interrupt_checkpoint (mb);
2036 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2038 emit_thread_force_interrupt_checkpoint (mb);
2041 #endif /* DISABLE_JIT */
2043 static MonoAsyncResult *
2044 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2046 MonoMethodMessage *msg;
2047 MonoDelegate *async_callback;
2048 MonoMulticastDelegate *mcast_delegate;
2052 MonoMethod *method = NULL, *method2 = NULL;
2054 g_assert (delegate);
2055 mcast_delegate = (MonoMulticastDelegate *) delegate;
2056 if (mcast_delegate->prev != NULL)
2057 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2059 #ifndef DISABLE_REMOTING
2060 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2062 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2063 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2065 /* If the target is a proxy, make a direct call. Is proxy's work
2066 // to make the call asynchronous.
2068 MonoAsyncResult *ares;
2070 MonoArray *out_args;
2071 method = delegate->method;
2073 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2074 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2075 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2076 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2077 MONO_OBJECT_SETREF (msg, async_result, ares);
2078 msg->call_type = CallType_BeginInvoke;
2081 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2083 mono_raise_exception ((MonoException *) exc);
2089 klass = delegate->object.vtable->klass;
2091 method = mono_get_delegate_invoke (klass);
2092 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2095 g_assert (method != NULL);
2097 im = mono_get_delegate_invoke (method->klass);
2098 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2100 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2106 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2108 int i, params_var, tmp_var;
2110 /* allocate local (pointer) *params[] */
2111 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2112 /* allocate local (pointer) tmp */
2113 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2115 /* alloate space on stack to store an array of pointers to the arguments */
2116 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2117 mono_mb_emit_byte (mb, CEE_PREFIX1);
2118 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2119 mono_mb_emit_stloc (mb, params_var);
2122 mono_mb_emit_ldloc (mb, params_var);
2123 mono_mb_emit_stloc (mb, tmp_var);
2125 if (save_this && sig->hasthis) {
2126 mono_mb_emit_ldloc (mb, tmp_var);
2127 mono_mb_emit_ldarg_addr (mb, 0);
2128 mono_mb_emit_byte (mb, CEE_STIND_I);
2129 /* tmp = tmp + sizeof (gpointer) */
2130 if (sig->param_count)
2131 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2135 for (i = 0; i < sig->param_count; i++) {
2136 mono_mb_emit_ldloc (mb, tmp_var);
2137 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2138 mono_mb_emit_byte (mb, CEE_STIND_I);
2139 /* tmp = tmp + sizeof (gpointer) */
2140 if (i < (sig->param_count - 1))
2141 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2147 #endif /* DISABLE_JIT */
2150 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2154 GString *res = g_string_new ("");
2157 g_string_append (res, prefix);
2158 g_string_append_c (res, '_');
2161 mono_type_get_desc (res, sig->ret, FALSE);
2164 g_string_append (res, "__this__");
2166 for (i = 0; i < sig->param_count; ++i) {
2167 g_string_append_c (res, '_');
2168 mono_type_get_desc (res, sig->params [i], FALSE);
2171 g_string_free (res, FALSE);
2176 * mono_marshal_get_string_encoding:
2178 * Return the string encoding which should be used for a given parameter.
2180 static MonoMarshalNative
2181 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2183 /* First try the parameter marshal info */
2185 if (spec->native == MONO_NATIVE_LPARRAY) {
2186 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2187 return spec->data.array_data.elem_type;
2190 return spec->native;
2194 return MONO_NATIVE_LPSTR;
2196 /* Then try the method level marshal info */
2197 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2198 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2199 return MONO_NATIVE_LPSTR;
2200 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2201 return MONO_NATIVE_LPWSTR;
2202 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2204 return MONO_NATIVE_LPWSTR;
2206 return MONO_NATIVE_LPSTR;
2209 return MONO_NATIVE_LPSTR;
2213 static MonoMarshalConv
2214 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2216 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2219 case MONO_NATIVE_LPWSTR:
2220 return MONO_MARSHAL_CONV_STR_LPWSTR;
2221 case MONO_NATIVE_LPSTR:
2222 case MONO_NATIVE_VBBYREFSTR:
2223 return MONO_MARSHAL_CONV_STR_LPSTR;
2224 case MONO_NATIVE_LPTSTR:
2225 return MONO_MARSHAL_CONV_STR_LPTSTR;
2226 case MONO_NATIVE_BSTR:
2227 return MONO_MARSHAL_CONV_STR_BSTR;
2233 static MonoMarshalConv
2234 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2236 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2239 case MONO_NATIVE_LPWSTR:
2240 return MONO_MARSHAL_CONV_SB_LPWSTR;
2242 case MONO_NATIVE_LPSTR:
2243 return MONO_MARSHAL_CONV_SB_LPSTR;
2245 case MONO_NATIVE_LPTSTR:
2246 return MONO_MARSHAL_CONV_SB_LPTSTR;
2253 static MonoMarshalConv
2254 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2256 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2261 case MONO_NATIVE_LPWSTR:
2263 return MONO_MARSHAL_CONV_LPWSTR_STR;
2264 case MONO_NATIVE_LPSTR:
2265 case MONO_NATIVE_VBBYREFSTR:
2266 return MONO_MARSHAL_CONV_LPSTR_STR;
2267 case MONO_NATIVE_LPTSTR:
2268 return MONO_MARSHAL_CONV_LPTSTR_STR;
2269 case MONO_NATIVE_BSTR:
2270 return MONO_MARSHAL_CONV_BSTR_STR;
2276 static MonoMarshalConv
2277 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2279 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2284 case MONO_NATIVE_LPWSTR:
2286 * mono_string_builder_to_utf16 does not allocate a
2287 * new buffer, so no need to free it.
2290 return MONO_MARSHAL_CONV_LPWSTR_SB;
2291 case MONO_NATIVE_LPSTR:
2292 return MONO_MARSHAL_CONV_LPSTR_SB;
2294 case MONO_NATIVE_LPTSTR:
2295 return MONO_MARSHAL_CONV_LPTSTR_SB;
2303 * Return whenever a field of a native structure or an array member needs to
2307 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2309 MonoMarshalNative encoding;
2312 case MONO_TYPE_VALUETYPE:
2313 /* FIXME: Optimize this */
2315 case MONO_TYPE_OBJECT:
2316 case MONO_TYPE_CLASS:
2317 if (t->data.klass == mono_defaults.stringbuilder_class) {
2319 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2323 case MONO_TYPE_STRING:
2324 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2325 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2332 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2335 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2338 mono_marshal_lock ();
2341 g_hash_table_new (hash_func, equal_func);
2342 mono_memory_barrier ();
2345 mono_marshal_unlock ();
2351 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2353 return get_cache (var, hash_func, equal_func);
2357 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2361 mono_marshal_lock ();
2362 res = g_hash_table_lookup (cache, key);
2363 mono_marshal_unlock ();
2370 * Create a MonoMethod from MB, set INFO as wrapper info.
2373 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2374 int max_stack, WrapperInfo *info)
2378 res = mono_mb_create_method (mb, sig, max_stack);
2380 mono_marshal_set_wrapper_info (res, info);
2384 /* Create the method from the builder and place it in the cache */
2386 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2387 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2388 int max_stack, WrapperInfo *info, gboolean *out_found)
2395 mono_marshal_lock ();
2396 res = g_hash_table_lookup (cache, key);
2397 mono_marshal_unlock ();
2400 newm = mono_mb_create_method (mb, sig, max_stack);
2401 mono_marshal_lock ();
2402 res = g_hash_table_lookup (cache, key);
2405 g_hash_table_insert (cache, key, res);
2407 mono_marshal_set_wrapper_info (res, info);
2409 mono_marshal_set_wrapper_info (res, key);
2410 mono_marshal_unlock ();
2414 mono_marshal_unlock ();
2415 mono_free_method (newm);
2423 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2424 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2427 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2431 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2434 int wrapper_type = wrapper->wrapper_type;
2437 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2440 switch (wrapper_type) {
2441 case MONO_WRAPPER_REMOTING_INVOKE:
2442 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2443 case MONO_WRAPPER_XDOMAIN_INVOKE:
2444 case MONO_WRAPPER_SYNCHRONIZED:
2445 case MONO_WRAPPER_UNBOX:
2446 res = mono_marshal_get_wrapper_info (wrapper);
2449 if (wrapper->is_inflated) {
2453 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2454 * contains an uninflated method.
2456 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2457 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2461 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2462 info = mono_marshal_get_wrapper_info (wrapper);
2463 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2464 return info->d.managed_to_native.method;
2467 case MONO_WRAPPER_RUNTIME_INVOKE:
2468 info = mono_marshal_get_wrapper_info (wrapper);
2469 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2470 return info->d.runtime_invoke.method;
2479 * mono_marshal_get_wrapper_info:
2481 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2482 * returned depends on the wrapper type. It is usually a method, a class, or a
2483 * WrapperInfo structure.
2486 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2488 g_assert (wrapper->wrapper_type);
2490 return mono_method_get_wrapper_data (wrapper, 1);
2494 * mono_marshal_set_wrapper_info:
2496 * Store an arbitrary pointer inside the wrapper which is retrievable by
2497 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2498 * wrapper (method->wrapper_type).
2501 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2505 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2508 datav = ((MonoMethodWrapper *)method)->method_data;
2513 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2517 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2518 info->subtype = subtype;
2523 * get_wrapper_target_class:
2525 * Return the class where a wrapper method should be placed.
2528 get_wrapper_target_class (MonoImage *image)
2535 * - can't put all wrappers into an mscorlib class, because they reference
2536 * metadata (signature) so they should be put into the same image as the
2537 * method they wrap, so they are unloaded together.
2538 * - putting them into a class with a type initalizer could cause the
2539 * initializer to be executed which can be a problem if the wrappers are
2541 * - putting them into an inflated class can cause problems if the the
2542 * class is deleted because it references an image which is unloaded.
2543 * To avoid these problems, we put the wrappers into the <Module> class of
2546 if (image_is_dynamic (image)) {
2547 klass = ((MonoDynamicImage*)image)->wrappers_type;
2549 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2550 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2558 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2559 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2563 * check_generic_wrapper_cache:
2565 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2566 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2567 * generic method definition.
2570 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2573 MonoMethod *inst, *def;
2574 MonoGenericContext *ctx;
2576 g_assert (orig_method->is_inflated);
2577 ctx = mono_method_get_context (orig_method);
2580 * Look for the instance
2582 res = mono_marshal_find_in_cache (cache, key);
2587 * Look for the definition
2589 def = mono_marshal_find_in_cache (cache, def_key);
2592 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2593 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2595 mono_memory_barrier ();
2596 mono_marshal_lock ();
2597 res = g_hash_table_lookup (cache, key);
2599 g_hash_table_insert (cache, key, inst);
2602 mono_marshal_unlock ();
2609 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2612 MonoMethod *inst, *res;
2615 * We use the same cache for the generic definition and the instances.
2617 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2618 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2619 mono_memory_barrier ();
2620 mono_marshal_lock ();
2621 res = g_hash_table_lookup (cache, key);
2623 g_hash_table_insert (cache, key, inst);
2626 mono_marshal_unlock ();
2631 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2635 MonoMethod *inst, *def;
2638 * Look for the instance
2640 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2645 * Look for the definition
2647 def = mono_marshal_find_in_cache (cache, def_method->klass);
2649 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2650 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2653 mono_memory_barrier ();
2654 mono_marshal_lock ();
2655 res = g_hash_table_lookup (cache, orig_method->klass);
2657 g_hash_table_insert (cache, orig_method->klass, inst);
2660 mono_marshal_unlock ();
2667 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2670 MonoMethod *inst, *res;
2673 * We use the same cache for the generic definition and the instances.
2675 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2676 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2678 mono_memory_barrier ();
2679 mono_marshal_lock ();
2680 res = g_hash_table_lookup (cache, orig_method->klass);
2682 g_hash_table_insert (cache, orig_method->klass, inst);
2685 mono_marshal_unlock ();
2690 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2692 MonoMethodSignature *sig;
2693 MonoMethodBuilder *mb;
2698 MonoGenericContext *ctx = NULL;
2699 MonoMethod *orig_method = NULL;
2701 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2702 !strcmp (method->name, "BeginInvoke"));
2705 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2707 if (method->is_inflated) {
2708 orig_method = method;
2709 ctx = &((MonoMethodInflated*)method)->context;
2710 method = ((MonoMethodInflated*)method)->declaring;
2713 sig = mono_signature_no_pinvoke (method);
2719 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2720 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2724 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2725 (GHashFunc)mono_signature_hash,
2726 (GCompareFunc)mono_metadata_signature_equal);
2727 if ((res = mono_marshal_find_in_cache (cache, sig)))
2731 g_assert (sig->hasthis);
2733 name = mono_signature_to_name (sig, "begin_invoke");
2735 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2737 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2741 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2743 mono_mb_emit_ldarg (mb, 0);
2744 mono_mb_emit_ldloc (mb, params_var);
2745 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2746 mono_mb_emit_byte (mb, CEE_RET);
2751 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2752 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2754 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2762 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2764 MonoDomain *domain = mono_domain_get ();
2765 MonoAsyncResult *ares;
2766 MonoMethod *method = NULL;
2767 MonoMethodSignature *sig;
2768 MonoMethodMessage *msg;
2769 MonoObject *res, *exc;
2770 MonoArray *out_args;
2773 g_assert (delegate);
2775 if (!delegate->method_info) {
2776 g_assert (delegate->method);
2777 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2780 if (!delegate->method_info || !delegate->method_info->method)
2781 g_assert_not_reached ();
2783 klass = delegate->object.vtable->klass;
2785 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2786 g_assert (method != NULL);
2788 sig = mono_signature_no_pinvoke (method);
2790 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2792 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2794 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."));
2798 if (ares->async_delegate != (MonoObject*)delegate) {
2799 mono_raise_exception (mono_get_exception_invalid_operation (
2800 "The IAsyncResult object provided does not match this delegate."));
2804 #ifndef DISABLE_REMOTING
2805 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2806 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2807 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2808 mono_message_init (domain, msg, delegate->method_info, NULL);
2809 msg->call_type = CallType_EndInvoke;
2810 MONO_OBJECT_SETREF (msg, async_result, ares);
2811 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2815 res = mono_thread_pool_finish (ares, &out_args, &exc);
2819 if (((MonoException*)exc)->stack_trace) {
2820 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2822 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2824 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2827 mono_raise_exception ((MonoException*)exc);
2830 mono_method_return_message_restore (method, params, out_args);
2837 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2839 MonoType *t = mono_type_get_underlying_type (return_type);
2841 if (return_type->byref)
2842 return_type = &mono_defaults.int_class->byval_arg;
2845 case MONO_TYPE_VOID:
2846 g_assert_not_reached ();
2849 case MONO_TYPE_STRING:
2850 case MONO_TYPE_CLASS:
2851 case MONO_TYPE_OBJECT:
2852 case MONO_TYPE_ARRAY:
2853 case MONO_TYPE_SZARRAY:
2857 case MONO_TYPE_BOOLEAN:
2860 case MONO_TYPE_CHAR:
2870 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2871 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2873 case MONO_TYPE_GENERICINST:
2874 if (!mono_type_generic_inst_is_valuetype (t))
2877 case MONO_TYPE_VALUETYPE: {
2878 MonoClass *klass = mono_class_from_mono_type (return_type);
2879 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2880 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2884 case MONO_TYPE_MVAR: {
2885 MonoClass *klass = mono_class_from_mono_type (return_type);
2886 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2890 g_warning ("type 0x%x not handled", return_type->type);
2891 g_assert_not_reached ();
2894 mono_mb_emit_byte (mb, CEE_RET);
2897 #endif /* DISABLE_JIT */
2900 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2902 MonoMethodSignature *sig;
2903 MonoMethodBuilder *mb;
2908 MonoGenericContext *ctx = NULL;
2909 MonoMethod *orig_method = NULL;
2911 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2912 !strcmp (method->name, "EndInvoke"));
2915 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2917 if (method->is_inflated) {
2918 orig_method = method;
2919 ctx = &((MonoMethodInflated*)method)->context;
2920 method = ((MonoMethodInflated*)method)->declaring;
2923 sig = mono_signature_no_pinvoke (method);
2929 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2930 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2934 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2935 (GHashFunc)mono_signature_hash,
2936 (GCompareFunc)mono_metadata_signature_equal);
2937 if ((res = mono_marshal_find_in_cache (cache, sig)))
2941 g_assert (sig->hasthis);
2943 name = mono_signature_to_name (sig, "end_invoke");
2945 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2947 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2951 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2953 mono_mb_emit_ldarg (mb, 0);
2954 mono_mb_emit_ldloc (mb, params_var);
2955 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2957 if (sig->ret->type == MONO_TYPE_VOID) {
2958 mono_mb_emit_byte (mb, CEE_POP);
2959 mono_mb_emit_byte (mb, CEE_RET);
2961 mono_mb_emit_restore_result (mb, sig->ret);
2966 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2967 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2969 res = mono_mb_create_and_cache (cache, sig,
2970 mb, sig, sig->param_count + 16);
2979 MonoMethodSignature *sig;
2981 } SignaturePointerPair;
2984 signature_pointer_pair_hash (gconstpointer data)
2986 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2988 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2992 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2994 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2995 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
2999 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3001 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3003 return pair->pointer == user_data;
3007 free_signature_pointer_pair (SignaturePointerPair *pair)
3013 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3015 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3017 MonoMethodBuilder *mb;
3020 gpointer cache_key = NULL;
3021 SignaturePointerPair key;
3022 SignaturePointerPair *new_key;
3023 int local_prev, local_target;
3026 MonoClass *target_class = NULL;
3027 gboolean closed_over_null = FALSE;
3028 MonoGenericContext *ctx = NULL;
3029 MonoGenericContainer *container = NULL;
3030 MonoMethod *orig_method = NULL;
3032 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3035 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3036 !strcmp (method->name, "Invoke"));
3038 invoke_sig = sig = mono_signature_no_pinvoke (method);
3041 * If the delegate target is null, and the target method is not static, a virtual
3042 * call is made to that method with the first delegate argument as this. This is
3043 * a non-documented .NET feature.
3046 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3047 if (target_method->is_inflated) {
3048 MonoType *target_type;
3050 g_assert (method->signature->hasthis);
3051 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3052 mono_method_get_context (method));
3053 target_class = mono_class_from_mono_type (target_type);
3055 target_class = target_method->klass;
3058 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3061 if (static_method_with_first_arg_bound) {
3062 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3063 g_assert (!callvirt);
3064 invoke_sig = mono_method_signature (target_method);
3068 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3070 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3071 orig_method = method;
3072 ctx = &((MonoMethodInflated*)method)->context;
3073 method = ((MonoMethodInflated*)method)->declaring;
3075 container = mono_method_get_generic_container (method);
3077 container = method->klass->generic_container;
3078 g_assert (container);
3080 invoke_sig = sig = mono_signature_no_pinvoke (method);
3087 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3088 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3091 cache_key = method->klass;
3092 } else if (static_method_with_first_arg_bound) {
3093 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3094 (GHashFunc)mono_signature_hash,
3095 (GCompareFunc)mono_metadata_signature_equal);
3097 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3099 res = mono_marshal_find_in_cache (cache, invoke_sig);
3102 cache_key = invoke_sig;
3103 } else if (callvirt) {
3104 GHashTable **cache_ptr;
3106 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3108 /* We need to cache the signature+method pair */
3109 mono_marshal_lock ();
3111 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3113 key.sig = invoke_sig;
3114 key.pointer = target_method;
3115 res = g_hash_table_lookup (cache, &key);
3116 mono_marshal_unlock ();
3120 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3121 (GHashFunc)mono_signature_hash,
3122 (GCompareFunc)mono_metadata_signature_equal);
3123 res = mono_marshal_find_in_cache (cache, sig);
3129 static_sig = signature_dup (method->klass->image, sig);
3130 static_sig->hasthis = 0;
3131 if (!static_method_with_first_arg_bound)
3132 invoke_sig = static_sig;
3134 if (static_method_with_first_arg_bound)
3135 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3136 else if (closed_over_null)
3137 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3139 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3141 name = mono_signature_to_name (invoke_sig, "invoke");
3143 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3145 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3149 /* allocate local 0 (object) */
3150 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3151 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3153 g_assert (sig->hasthis);
3157 * prev.Invoke( args .. );
3158 * return this.<target>( args .. );
3161 /* this wrapper can be used in unmanaged-managed transitions */
3162 emit_thread_interrupt_checkpoint (mb);
3164 /* get this->prev */
3165 mono_mb_emit_ldarg (mb, 0);
3166 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3167 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3168 mono_mb_emit_stloc (mb, local_prev);
3169 mono_mb_emit_ldloc (mb, local_prev);
3171 /* if prev != null */
3172 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3176 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3177 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3179 mono_mb_emit_ldloc (mb, local_prev);
3180 for (i = 0; i < sig->param_count; i++)
3181 mono_mb_emit_ldarg (mb, i + 1);
3184 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3185 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3187 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3189 if (sig->ret->type != MONO_TYPE_VOID)
3190 mono_mb_emit_byte (mb, CEE_POP);
3192 /* continued or prev == null */
3193 mono_mb_patch_branch (mb, pos0);
3195 /* get this->target */
3196 mono_mb_emit_ldarg (mb, 0);
3197 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3198 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3199 mono_mb_emit_stloc (mb, local_target);
3201 /*static methods with bound first arg can have null target and still be bound*/
3202 if (!static_method_with_first_arg_bound) {
3203 /* if target != null */
3204 mono_mb_emit_ldloc (mb, local_target);
3205 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3207 /* then call this->method_ptr nonstatic */
3210 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3212 mono_mb_emit_ldloc (mb, local_target);
3213 for (i = 0; i < sig->param_count; ++i)
3214 mono_mb_emit_ldarg (mb, i + 1);
3215 mono_mb_emit_ldarg (mb, 0);
3216 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3217 mono_mb_emit_byte (mb, CEE_LDIND_I );
3218 mono_mb_emit_op (mb, CEE_CALLI, sig);
3220 mono_mb_emit_byte (mb, CEE_RET);
3223 /* else [target == null] call this->method_ptr static */
3224 mono_mb_patch_branch (mb, pos0);
3228 if (!closed_over_null) {
3229 mono_mb_emit_ldarg (mb, 1);
3230 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3231 for (i = 1; i < sig->param_count; ++i)
3232 mono_mb_emit_ldarg (mb, i + 1);
3233 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3235 mono_mb_emit_byte (mb, CEE_LDNULL);
3236 for (i = 0; i < sig->param_count; ++i)
3237 mono_mb_emit_ldarg (mb, i + 1);
3238 mono_mb_emit_op (mb, CEE_CALL, target_method);
3241 if (static_method_with_first_arg_bound) {
3242 mono_mb_emit_ldloc (mb, local_target);
3243 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3244 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3246 for (i = 0; i < sig->param_count; ++i)
3247 mono_mb_emit_ldarg (mb, i + 1);
3248 mono_mb_emit_ldarg (mb, 0);
3249 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3250 mono_mb_emit_byte (mb, CEE_LDIND_I );
3251 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3254 mono_mb_emit_byte (mb, CEE_RET);
3256 mb->skip_visibility = 1;
3257 #endif /* DISABLE_JIT */
3262 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3263 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3264 } else if (callvirt) {
3265 new_key = g_new0 (SignaturePointerPair, 1);
3268 info = mono_wrapper_info_create (mb, subtype);
3270 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3274 info = mono_wrapper_info_create (mb, subtype);
3276 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3284 * the returned method invokes all methods in a multicast delegate.
3287 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3289 gboolean callvirt = FALSE;
3290 gboolean static_method_with_first_arg_bound = FALSE;
3291 MonoMethod *target_method = NULL;
3292 MonoMethodSignature *sig;
3294 sig = mono_signature_no_pinvoke (method);
3296 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3298 target_method = del->method;
3301 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3302 static_method_with_first_arg_bound = TRUE;
3303 target_method = del->method;
3306 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3310 * signature_dup_add_this:
3312 * Make a copy of @sig, adding an explicit this argument.
3314 static MonoMethodSignature*
3315 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3317 MonoMethodSignature *res;
3320 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3321 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3322 res->param_count = sig->param_count + 1;
3323 res->hasthis = FALSE;
3324 for (i = sig->param_count - 1; i >= 0; i --)
3325 res->params [i + 1] = sig->params [i];
3326 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3332 MonoMethodSignature *ctor_sig;
3333 MonoMethodSignature *sig;
3336 /* protected by the marshal lock, contains CtorSigPair pointers */
3337 static GSList *strsig_list = NULL;
3339 static MonoMethodSignature *
3340 lookup_string_ctor_signature (MonoMethodSignature *sig)
3342 MonoMethodSignature *callsig;
3346 mono_marshal_lock ();
3348 for (item = strsig_list; item; item = item->next) {
3350 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3351 * because it is lock-free.
3353 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3358 mono_marshal_unlock ();
3362 static MonoMethodSignature *
3363 add_string_ctor_signature (MonoMethod *method)
3365 MonoMethodSignature *callsig;
3368 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3369 callsig->ret = &mono_defaults.string_class->byval_arg;
3370 cs = g_new (CtorSigPair, 1);
3372 cs->ctor_sig = mono_method_signature (method);
3374 mono_marshal_lock ();
3375 strsig_list = g_slist_prepend (strsig_list, cs);
3376 mono_marshal_unlock ();
3381 * mono_marshal_get_string_ctor_signature:
3383 * Return the modified signature used by string ctors (they return the newly created
3386 MonoMethodSignature*
3387 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3389 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3391 sig = add_string_ctor_signature (method);
3397 get_runtime_invoke_type (MonoType *t, gboolean ret)
3400 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3402 /* Can't share this with 'I' as that needs another indirection */
3403 return &mono_defaults.int_class->this_arg;
3406 if (MONO_TYPE_IS_REFERENCE (t))
3407 return &mono_defaults.object_class->byval_arg;
3410 /* The result needs to be boxed */
3415 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3418 return &mono_defaults.sbyte_class->byval_arg;
3420 return &mono_defaults.int16_class->byval_arg;
3422 return &mono_defaults.int32_class->byval_arg;
3425 return &mono_defaults.int64_class->byval_arg;
3426 case MONO_TYPE_BOOLEAN:
3427 return &mono_defaults.byte_class->byval_arg;
3428 case MONO_TYPE_CHAR:
3429 return &mono_defaults.uint16_class->byval_arg;
3432 return &mono_defaults.int_class->byval_arg;
3433 case MONO_TYPE_VALUETYPE:
3434 if (t->data.klass->enumtype) {
3435 t = mono_class_enum_basetype (t->data.klass);
3445 * mono_marshal_get_runtime_invoke_sig:
3447 * Return a common signature used for sharing runtime invoke wrappers.
3449 static MonoMethodSignature*
3450 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3452 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3455 res->generic_param_count = 0;
3456 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3457 for (i = 0; i < res->param_count; ++i)
3458 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3464 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3466 /* Can't share wrappers which return a vtype since it needs to be boxed */
3467 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))
3470 return mono_metadata_signature_equal (sig1, sig2);
3478 * Emit the call to the wrapper method from a runtime invoke wrapper.
3481 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3482 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3484 gboolean virtual, gboolean need_direct_wrapper)
3486 static MonoString *string_dummy = NULL;
3488 int *tmp_nullable_locals;
3489 gboolean void_ret = FALSE;
3491 /* to make it work with our special string constructors */
3492 if (!string_dummy) {
3493 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3494 string_dummy = mono_string_new_wrapper ("dummy");
3498 g_assert (sig->hasthis);
3499 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3503 if (method->string_ctor) {
3504 if (mono_gc_is_moving ()) {
3505 mono_mb_emit_ptr (mb, &string_dummy);
3506 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3508 mono_mb_emit_ptr (mb, string_dummy);
3511 mono_mb_emit_ldarg (mb, 0);
3515 tmp_nullable_locals = g_new0 (int, sig->param_count);
3517 for (i = 0; i < sig->param_count; i++) {
3518 MonoType *t = sig->params [i];
3521 mono_mb_emit_ldarg (mb, 1);
3523 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3524 mono_mb_emit_byte (mb, CEE_ADD);
3528 mono_mb_emit_byte (mb, CEE_LDIND_I);
3529 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3530 * So to make this work we unbox it to a local variablee and push a reference to that.
3532 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3533 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3535 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3536 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3537 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3542 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3543 type = sig->params [i]->type;
3547 case MONO_TYPE_BOOLEAN:
3551 case MONO_TYPE_CHAR:
3560 mono_mb_emit_byte (mb, CEE_LDIND_I);
3561 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3563 case MONO_TYPE_STRING:
3564 case MONO_TYPE_CLASS:
3565 case MONO_TYPE_ARRAY:
3567 case MONO_TYPE_SZARRAY:
3568 case MONO_TYPE_OBJECT:
3569 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3571 case MONO_TYPE_GENERICINST:
3572 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3573 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3578 case MONO_TYPE_VALUETYPE:
3579 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3580 type = mono_class_enum_basetype (t->data.klass)->type;
3583 mono_mb_emit_byte (mb, CEE_LDIND_I);
3584 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3585 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3586 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3587 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3589 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3593 g_assert_not_reached ();
3598 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3599 } else if (need_direct_wrapper) {
3600 mono_mb_emit_op (mb, CEE_CALL, method);
3602 mono_mb_emit_ldarg (mb, 3);
3603 mono_mb_emit_calli (mb, callsig);
3606 if (sig->ret->byref) {
3608 g_assert_not_reached ();
3611 switch (sig->ret->type) {
3612 case MONO_TYPE_VOID:
3613 if (!method->string_ctor)
3616 case MONO_TYPE_BOOLEAN:
3617 case MONO_TYPE_CHAR:
3630 case MONO_TYPE_VALUETYPE:
3631 case MONO_TYPE_TYPEDBYREF:
3632 case MONO_TYPE_GENERICINST:
3633 /* box value types */
3634 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3636 case MONO_TYPE_STRING:
3637 case MONO_TYPE_CLASS:
3638 case MONO_TYPE_ARRAY:
3639 case MONO_TYPE_SZARRAY:
3640 case MONO_TYPE_OBJECT:
3644 /* The result is an IntPtr */
3645 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3648 g_assert_not_reached ();
3652 mono_mb_emit_stloc (mb, loc_res);
3654 /* Convert back nullable-byref arguments */
3655 for (i = 0; i < sig->param_count; i++) {
3656 MonoType *t = sig->params [i];
3659 * Box the result and put it back into the array, the caller will have
3660 * to obtain it from there.
3662 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3663 mono_mb_emit_ldarg (mb, 1);
3664 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3665 mono_mb_emit_byte (mb, CEE_ADD);
3667 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3668 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3670 mono_mb_emit_byte (mb, CEE_STIND_REF);
3674 g_free (tmp_nullable_locals);
3678 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3679 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3680 gboolean virtual, gboolean need_direct_wrapper)
3683 MonoExceptionClause *clause;
3684 int loc_res, loc_exc;
3686 /* The wrapper looks like this:
3692 * } catch (Exception e) {
3700 /* allocate local 0 (object) tmp */
3701 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3702 /* allocate local 1 (object) exc */
3703 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3705 /* *exc is assumed to be initialized to NULL by the caller */
3707 mono_mb_emit_byte (mb, CEE_LDARG_2);
3708 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3713 labels [1] = mono_mb_get_label (mb);
3714 emit_thread_force_interrupt_checkpoint (mb);
3715 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3717 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3719 /* Add a try clause around the call */
3720 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3721 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3722 clause->data.catch_class = mono_defaults.exception_class;
3723 clause->try_offset = labels [1];
3724 clause->try_len = mono_mb_get_label (mb) - labels [1];
3726 clause->handler_offset = mono_mb_get_label (mb);
3729 mono_mb_emit_stloc (mb, loc_exc);
3730 mono_mb_emit_byte (mb, CEE_LDARG_2);
3731 mono_mb_emit_ldloc (mb, loc_exc);
3732 mono_mb_emit_byte (mb, CEE_STIND_REF);
3734 mono_mb_emit_branch (mb, CEE_LEAVE);
3736 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3738 mono_mb_set_clauses (mb, 1, clause);
3740 mono_mb_patch_branch (mb, labels [2]);
3741 mono_mb_emit_ldloc (mb, loc_res);
3742 mono_mb_emit_byte (mb, CEE_RET);
3747 mono_mb_patch_branch (mb, labels [0]);
3748 emit_thread_force_interrupt_checkpoint (mb);
3749 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3751 mono_mb_emit_ldloc (mb, 0);
3752 mono_mb_emit_byte (mb, CEE_RET);
3757 * generates IL code for the runtime invoke function
3758 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3760 * we also catch exceptions if exc != null
3761 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3762 * it means that the compiled code for METHOD does not have to be looked up
3763 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3764 * its METHOD argument.
3767 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3769 MonoMethodSignature *sig, *csig, *callsig;
3770 MonoMethodBuilder *mb;
3771 GHashTable *cache = NULL;
3772 MonoClass *target_klass;
3773 MonoMethod *res = NULL;
3774 static MonoMethodSignature *cctor_signature = NULL;
3775 static MonoMethodSignature *finalize_signature = NULL;
3777 const char *param_names [16];
3778 gboolean need_direct_wrapper = FALSE;
3783 if (!cctor_signature) {
3784 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3785 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3787 if (!finalize_signature) {
3788 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3789 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3790 finalize_signature->hasthis = 1;
3794 need_direct_wrapper = TRUE;
3797 * Use a separate cache indexed by methods to speed things up and to avoid the
3798 * boundless mempool growth caused by the signature_dup stuff below.
3801 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3803 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3804 res = mono_marshal_find_in_cache (cache, method);
3808 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3809 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3811 * Array Get/Set/Address methods. The JIT implements them using inline code
3812 * so we need to create an invoke wrapper which calls the method directly.
3814 need_direct_wrapper = TRUE;
3817 if (method->string_ctor) {
3818 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3820 callsig = add_string_ctor_signature (method);
3821 /* Can't share this as we push a string as this */
3822 need_direct_wrapper = TRUE;
3824 if (method_is_dynamic (method))
3825 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3827 callsig = mono_method_signature (method);
3830 target_klass = get_wrapper_target_class (method->klass->image);
3832 /* Try to share wrappers for non-corlib methods with simple signatures */
3833 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3834 callsig = cctor_signature;
3835 target_klass = mono_defaults.object_class;
3836 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3837 callsig = finalize_signature;
3838 target_klass = mono_defaults.object_class;
3841 if (need_direct_wrapper) {
3842 /* Already searched at the start */
3844 MonoMethodSignature *tmp_sig;
3846 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3848 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3849 /* These have a different csig */
3850 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3851 (GHashFunc)mono_signature_hash,
3852 (GCompareFunc)runtime_invoke_signature_equal);
3854 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3855 (GHashFunc)mono_signature_hash,
3856 (GCompareFunc)runtime_invoke_signature_equal);
3858 /* from mono_marshal_find_in_cache */
3859 mono_marshal_lock ();
3860 res = g_hash_table_lookup (cache, callsig);
3861 mono_marshal_unlock ();
3868 /* Make a copy of the signature from the image mempool */
3870 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3874 sig = mono_method_signature (method);
3876 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3878 csig->ret = &mono_defaults.object_class->byval_arg;
3879 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3880 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3882 csig->params [0] = &mono_defaults.object_class->byval_arg;
3883 csig->params [1] = &mono_defaults.int_class->byval_arg;
3884 csig->params [2] = &mono_defaults.int_class->byval_arg;
3885 csig->params [3] = &mono_defaults.int_class->byval_arg;
3888 /* This is called from runtime code so it has to be cdecl */
3889 csig->call_convention = MONO_CALL_C;
3892 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3893 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3897 param_names [0] = "this";
3898 param_names [1] = "params";
3899 param_names [2] = "exc";
3900 param_names [3] = "method";
3901 mono_mb_set_param_names (mb, param_names);
3903 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3906 if (need_direct_wrapper) {
3908 mb->skip_visibility = 1;
3910 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3911 info->d.runtime_invoke.method = method;
3912 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3914 /* taken from mono_mb_create_and_cache */
3915 mono_marshal_lock ();
3916 res = g_hash_table_lookup (cache, callsig);
3917 mono_marshal_unlock ();
3919 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3920 info->d.runtime_invoke.sig = callsig;
3922 /* Somebody may have created it before us */
3925 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3927 mono_marshal_lock ();
3928 res = g_hash_table_lookup (cache, callsig);
3931 g_hash_table_insert (cache, callsig, res);
3932 /* Can't insert it into wrapper_hash since the key is a signature */
3933 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3935 mono_free_method (newm);
3937 mono_marshal_unlock ();
3940 /* end mono_mb_create_and_cache */
3949 * mono_marshal_get_runtime_invoke_dynamic:
3951 * Return a method which can be used to invoke managed methods from native code
3953 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3954 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3955 * ARGS should point to an architecture specific structure containing
3956 * the arguments and space for the return value.
3957 * The other arguments are the same as for runtime_invoke (), except that
3958 * ARGS should contain the this argument too.
3959 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3960 * is only one copy of it, which is useful in full-aot.
3961 * The wrapper info for the wrapper is a WrapperInfo structure.
3964 mono_marshal_get_runtime_invoke_dynamic (void)
3966 static MonoMethod *method;
3967 MonoMethodSignature *csig;
3968 MonoExceptionClause *clause;
3969 MonoMethodBuilder *mb;
3977 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3979 csig->ret = &mono_defaults.void_class->byval_arg;
3980 csig->params [0] = &mono_defaults.int_class->byval_arg;
3981 csig->params [1] = &mono_defaults.int_class->byval_arg;
3982 csig->params [2] = &mono_defaults.int_class->byval_arg;
3983 csig->params [3] = &mono_defaults.int_class->byval_arg;
3985 name = g_strdup ("runtime_invoke_dynamic");
3986 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
3990 /* allocate local 0 (object) tmp */
3991 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3992 /* allocate local 1 (object) exc */
3993 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3995 /* cond set *exc to null */
3996 mono_mb_emit_byte (mb, CEE_LDARG_1);
3997 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3998 mono_mb_emit_byte (mb, 3);
3999 mono_mb_emit_byte (mb, CEE_LDARG_1);
4000 mono_mb_emit_byte (mb, CEE_LDNULL);
4001 mono_mb_emit_byte (mb, CEE_STIND_REF);
4003 emit_thread_force_interrupt_checkpoint (mb);
4005 mono_mb_emit_byte (mb, CEE_LDARG_0);
4006 mono_mb_emit_byte (mb, CEE_LDARG_2);
4007 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4008 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4010 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4012 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4013 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4014 clause->try_len = mono_mb_get_label (mb);
4017 clause->data.filter_offset = mono_mb_get_label (mb);
4019 mono_mb_emit_byte (mb, CEE_POP);
4020 mono_mb_emit_byte (mb, CEE_LDARG_1);
4021 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4022 mono_mb_emit_byte (mb, CEE_PREFIX1);
4023 mono_mb_emit_byte (mb, CEE_CGT_UN);
4024 mono_mb_emit_byte (mb, CEE_PREFIX1);
4025 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4027 clause->handler_offset = mono_mb_get_label (mb);
4030 /* store exception */
4031 mono_mb_emit_stloc (mb, 1);
4033 mono_mb_emit_byte (mb, CEE_LDARG_1);
4034 mono_mb_emit_ldloc (mb, 1);
4035 mono_mb_emit_byte (mb, CEE_STIND_REF);
4037 mono_mb_emit_byte (mb, CEE_LDNULL);
4038 mono_mb_emit_stloc (mb, 0);
4040 /* Check for the abort exception */
4041 mono_mb_emit_ldloc (mb, 1);
4042 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4043 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4045 /* Delay the abort exception */
4046 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4048 mono_mb_patch_short_branch (mb, posna);
4049 mono_mb_emit_branch (mb, CEE_LEAVE);
4051 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4053 mono_mb_set_clauses (mb, 1, clause);
4056 mono_mb_patch_branch (mb, pos);
4057 //mono_mb_emit_ldloc (mb, 0);
4058 mono_mb_emit_byte (mb, CEE_RET);
4059 #endif /* DISABLE_JIT */
4061 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4063 mono_marshal_lock ();
4064 /* double-checked locking */
4066 method = mono_mb_create (mb, csig, 16, info);
4068 mono_marshal_unlock ();
4077 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4079 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4080 klass->name_space, klass->name);
4082 mono_mb_emit_exception_marshal_directive (mb, msg);
4087 * generates IL code for the icall wrapper (the generated method
4088 * calls the unmanaged code in func)
4089 * The wrapper info for the wrapper is a WrapperInfo structure.
4092 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4094 MonoMethodSignature *csig, *csig2;
4095 MonoMethodBuilder *mb;
4100 g_assert (sig->pinvoke);
4102 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4104 mb->method->save_lmf = 1;
4106 /* Add an explicit this argument */
4108 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4110 csig2 = signature_dup (mono_defaults.corlib, sig);
4114 mono_mb_emit_byte (mb, CEE_LDARG_0);
4116 for (i = 0; i < sig->param_count; i++)
4117 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4119 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4120 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4121 mono_mb_emit_calli (mb, csig2);
4122 if (check_exceptions)
4123 emit_thread_interrupt_checkpoint (mb);
4124 mono_mb_emit_byte (mb, CEE_RET);
4127 csig = signature_dup (mono_defaults.corlib, sig);
4129 if (csig->call_convention == MONO_CALL_VARARG)
4130 csig->call_convention = 0;
4132 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4133 info->d.icall.func = (gpointer)func;
4134 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4141 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4142 MonoMarshalSpec *spec,
4143 int conv_arg, MonoType **conv_arg_type,
4144 MarshalAction action)
4147 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4148 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4153 static MonoClass *ICustomMarshaler = NULL;
4154 static MonoMethod *cleanup_native, *cleanup_managed;
4155 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4156 MonoMethod *get_instance = NULL;
4157 MonoMethodBuilder *mb = m->mb;
4158 char *exception_msg = NULL;
4162 if (!ICustomMarshaler) {
4163 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4165 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4166 goto handle_exception;
4169 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4170 g_assert (cleanup_native);
4171 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4172 g_assert (cleanup_managed);
4173 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4174 g_assert (marshal_managed_to_native);
4175 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4176 g_assert (marshal_native_to_managed);
4178 mono_memory_barrier ();
4179 ICustomMarshaler = klass;
4182 if (spec->data.custom_data.image)
4183 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4185 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4186 g_assert (mtype != NULL);
4187 mklass = mono_class_from_mono_type (mtype);
4188 g_assert (mklass != NULL);
4190 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4191 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4193 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4195 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4196 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4197 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4198 (get_sig->params [0]->type != MONO_TYPE_STRING))
4199 get_instance = NULL;
4203 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);
4206 /* Throw exception and emit compensation code if neccesary */
4207 if (exception_msg) {
4209 case MARSHAL_ACTION_CONV_IN:
4210 case MARSHAL_ACTION_CONV_RESULT:
4211 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4212 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4213 mono_mb_emit_byte (mb, CEE_POP);
4215 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4216 g_free (exception_msg);
4219 case MARSHAL_ACTION_PUSH:
4220 mono_mb_emit_byte (mb, CEE_LDNULL);
4228 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4229 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4232 case MARSHAL_ACTION_CONV_IN:
4234 case MONO_TYPE_CLASS:
4235 case MONO_TYPE_OBJECT:
4236 case MONO_TYPE_STRING:
4237 case MONO_TYPE_ARRAY:
4238 case MONO_TYPE_SZARRAY:
4239 case MONO_TYPE_VALUETYPE:
4243 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4244 g_assert_not_reached ();
4248 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4250 mono_mb_emit_byte (mb, CEE_LDNULL);
4251 mono_mb_emit_stloc (mb, conv_arg);
4253 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4256 /* Minic MS.NET behavior */
4257 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4260 /* Check for null */
4261 mono_mb_emit_ldarg (mb, argnum);
4263 mono_mb_emit_byte (mb, CEE_LDIND_I);
4264 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4266 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4268 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4270 mono_mb_emit_ldarg (mb, argnum);
4272 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4274 if (t->type == MONO_TYPE_VALUETYPE) {
4276 * Since we can't determine the type of the argument, we
4277 * will assume the unmanaged function takes a pointer.
4279 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4281 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4284 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4285 mono_mb_emit_stloc (mb, conv_arg);
4287 mono_mb_patch_branch (mb, pos2);
4290 case MARSHAL_ACTION_CONV_OUT:
4291 /* Check for null */
4292 mono_mb_emit_ldloc (mb, conv_arg);
4293 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4296 mono_mb_emit_ldarg (mb, argnum);
4298 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4300 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4302 mono_mb_emit_ldloc (mb, conv_arg);
4303 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4304 mono_mb_emit_byte (mb, CEE_STIND_REF);
4305 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4306 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4308 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4310 mono_mb_emit_ldloc (mb, conv_arg);
4311 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4313 /* We have nowhere to store the result */
4314 mono_mb_emit_byte (mb, CEE_POP);
4317 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4319 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4321 mono_mb_emit_ldloc (mb, conv_arg);
4323 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4325 mono_mb_patch_branch (mb, pos2);
4328 case MARSHAL_ACTION_PUSH:
4330 mono_mb_emit_ldloc_addr (mb, conv_arg);
4332 mono_mb_emit_ldloc (mb, conv_arg);
4335 case MARSHAL_ACTION_CONV_RESULT:
4336 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4338 mono_mb_emit_stloc (mb, 3);
4340 mono_mb_emit_ldloc (mb, 3);
4341 mono_mb_emit_stloc (mb, loc1);
4343 /* Check for null */
4344 mono_mb_emit_ldloc (mb, 3);
4345 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4347 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4349 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4350 mono_mb_emit_byte (mb, CEE_DUP);
4352 mono_mb_emit_ldloc (mb, 3);
4353 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4354 mono_mb_emit_stloc (mb, 3);
4356 mono_mb_emit_ldloc (mb, loc1);
4357 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4359 mono_mb_patch_branch (mb, pos2);
4362 case MARSHAL_ACTION_MANAGED_CONV_IN:
4363 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4365 mono_mb_emit_byte (mb, CEE_LDNULL);
4366 mono_mb_emit_stloc (mb, conv_arg);
4368 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4371 /* Check for null */
4372 mono_mb_emit_ldarg (mb, argnum);
4374 mono_mb_emit_byte (mb, CEE_LDIND_I);
4375 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4377 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4378 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4380 mono_mb_emit_ldarg (mb, argnum);
4382 mono_mb_emit_byte (mb, CEE_LDIND_I);
4384 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4385 mono_mb_emit_stloc (mb, conv_arg);
4387 mono_mb_patch_branch (mb, pos2);
4390 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4391 g_assert (!t->byref);
4393 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4395 mono_mb_emit_stloc (mb, 3);
4397 mono_mb_emit_ldloc (mb, 3);
4398 mono_mb_emit_stloc (mb, loc1);
4400 /* Check for null */
4401 mono_mb_emit_ldloc (mb, 3);
4402 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4404 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4405 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4406 mono_mb_emit_byte (mb, CEE_DUP);
4408 mono_mb_emit_ldloc (mb, 3);
4409 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4410 mono_mb_emit_stloc (mb, 3);
4412 mono_mb_emit_ldloc (mb, loc1);
4413 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4415 mono_mb_patch_branch (mb, pos2);
4418 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4420 /* Check for null */
4421 mono_mb_emit_ldloc (mb, conv_arg);
4422 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4425 mono_mb_emit_ldarg (mb, argnum);
4427 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4429 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4431 mono_mb_emit_ldloc (mb, conv_arg);
4432 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4433 mono_mb_emit_byte (mb, CEE_STIND_I);
4436 /* Call CleanUpManagedData */
4437 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4439 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4441 mono_mb_emit_ldloc (mb, conv_arg);
4442 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4444 mono_mb_patch_branch (mb, pos2);
4448 g_assert_not_reached ();
4456 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4457 MonoMarshalSpec *spec,
4458 int conv_arg, MonoType **conv_arg_type,
4459 MarshalAction action)
4462 MonoMethodBuilder *mb = m->mb;
4465 case MARSHAL_ACTION_CONV_IN: {
4466 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4468 g_assert (t->type == MONO_TYPE_OBJECT);
4469 g_assert (!t->byref);
4471 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4472 mono_mb_emit_ldarg (mb, argnum);
4473 mono_mb_emit_icon (mb, encoding);
4474 mono_mb_emit_icon (mb, t->attrs);
4475 mono_mb_emit_icall (mb, mono_marshal_asany);
4476 mono_mb_emit_stloc (mb, conv_arg);
4480 case MARSHAL_ACTION_PUSH:
4481 mono_mb_emit_ldloc (mb, conv_arg);
4484 case MARSHAL_ACTION_CONV_OUT: {
4485 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4487 mono_mb_emit_ldarg (mb, argnum);
4488 mono_mb_emit_ldloc (mb, conv_arg);
4489 mono_mb_emit_icon (mb, encoding);
4490 mono_mb_emit_icon (mb, t->attrs);
4491 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4496 g_assert_not_reached ();
4503 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4504 MonoMarshalSpec *spec,
4505 int conv_arg, MonoType **conv_arg_type,
4506 MarshalAction action)
4509 MonoMethodBuilder *mb = m->mb;
4510 MonoClass *klass, *date_time_class;
4513 klass = mono_class_from_mono_type (t);
4515 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4518 case MARSHAL_ACTION_CONV_IN:
4519 if (klass == date_time_class) {
4520 /* Convert it to an OLE DATE type */
4521 static MonoMethod *to_oadate;
4524 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4525 g_assert (to_oadate);
4527 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4530 mono_mb_emit_ldarg (mb, argnum);
4531 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4534 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4536 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4538 mono_mb_emit_ldarg_addr (mb, argnum);
4539 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4540 mono_mb_emit_stloc (mb, conv_arg);
4544 mono_mb_patch_branch (mb, pos);
4548 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4549 klass->blittable || klass->enumtype)
4552 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4554 /* store the address of the source into local variable 0 */
4556 mono_mb_emit_ldarg (mb, argnum);
4558 mono_mb_emit_ldarg_addr (mb, argnum);
4560 mono_mb_emit_stloc (mb, 0);
4562 /* allocate space for the native struct and
4563 * store the address into local variable 1 (dest) */
4564 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4565 mono_mb_emit_byte (mb, CEE_PREFIX1);
4566 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4567 mono_mb_emit_stloc (mb, conv_arg);
4570 mono_mb_emit_ldloc (mb, 0);
4571 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4574 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4576 mono_mb_emit_ldloc (mb, conv_arg);
4577 mono_mb_emit_stloc (mb, 1);
4579 /* emit valuetype conversion code */
4580 emit_struct_conv (mb, klass, FALSE);
4584 mono_mb_patch_branch (mb, pos);
4587 case MARSHAL_ACTION_PUSH:
4588 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4590 g_assert (!t->byref);
4592 /* Have to change the signature since the vtype is passed byref */
4593 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4595 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4596 klass->blittable || klass->enumtype)
4597 mono_mb_emit_ldarg_addr (mb, argnum);
4599 mono_mb_emit_ldloc (mb, conv_arg);
4603 if (klass == date_time_class) {
4605 mono_mb_emit_ldloc_addr (mb, conv_arg);
4607 mono_mb_emit_ldloc (mb, conv_arg);
4611 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4612 klass->blittable || klass->enumtype) {
4613 mono_mb_emit_ldarg (mb, argnum);
4616 mono_mb_emit_ldloc (mb, conv_arg);
4618 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4619 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4623 case MARSHAL_ACTION_CONV_OUT:
4624 if (klass == date_time_class) {
4625 /* Convert from an OLE DATE type */
4626 static MonoMethod *from_oadate;
4631 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4633 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4634 g_assert (from_oadate);
4636 mono_mb_emit_ldarg (mb, argnum);
4637 mono_mb_emit_ldloc (mb, conv_arg);
4638 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4639 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4644 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4645 klass->blittable || klass->enumtype)
4649 /* dst = argument */
4650 mono_mb_emit_ldarg (mb, argnum);
4651 mono_mb_emit_stloc (mb, 1);
4653 mono_mb_emit_ldloc (mb, 1);
4654 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4656 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4657 /* src = tmp_locals [i] */
4658 mono_mb_emit_ldloc (mb, conv_arg);
4659 mono_mb_emit_stloc (mb, 0);
4661 /* emit valuetype conversion code */
4662 emit_struct_conv (mb, klass, TRUE);
4666 emit_struct_free (mb, klass, conv_arg);
4669 mono_mb_patch_branch (mb, pos);
4672 case MARSHAL_ACTION_CONV_RESULT:
4673 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4675 mono_mb_emit_stloc (mb, 3);
4679 /* load pointer to returned value type */
4680 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4681 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4682 /* store the address of the source into local variable 0 */
4683 mono_mb_emit_stloc (mb, 0);
4685 mono_mb_emit_ldloc_addr (mb, 3);
4686 mono_mb_emit_stloc (mb, 1);
4688 /* emit valuetype conversion code */
4689 emit_struct_conv (mb, klass, TRUE);
4692 case MARSHAL_ACTION_MANAGED_CONV_IN:
4693 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4694 klass->blittable || klass->enumtype) {
4699 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4701 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4705 mono_mb_emit_ldarg (mb, argnum);
4707 mono_mb_emit_ldarg_addr (mb, argnum);
4708 mono_mb_emit_stloc (mb, 0);
4711 mono_mb_emit_ldloc (mb, 0);
4712 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4715 mono_mb_emit_ldloc_addr (mb, conv_arg);
4716 mono_mb_emit_stloc (mb, 1);
4718 /* emit valuetype conversion code */
4719 emit_struct_conv (mb, klass, TRUE);
4722 mono_mb_patch_branch (mb, pos);
4725 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4726 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4727 klass->blittable || klass->enumtype) {
4731 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4734 /* Check for null */
4735 mono_mb_emit_ldarg (mb, argnum);
4736 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4739 mono_mb_emit_ldloc_addr (mb, conv_arg);
4740 mono_mb_emit_stloc (mb, 0);
4743 mono_mb_emit_ldarg (mb, argnum);
4744 mono_mb_emit_stloc (mb, 1);
4746 /* emit valuetype conversion code */
4747 emit_struct_conv (mb, klass, FALSE);
4749 mono_mb_patch_branch (mb, pos2);
4752 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4753 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4754 klass->blittable || klass->enumtype) {
4755 mono_mb_emit_stloc (mb, 3);
4760 /* load pointer to returned value type */
4761 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4762 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4764 /* store the address of the source into local variable 0 */
4765 mono_mb_emit_stloc (mb, 0);
4766 /* allocate space for the native struct and
4767 * store the address into dst_ptr */
4768 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4769 m->retobj_class = klass;
4770 g_assert (m->retobj_var);
4771 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4772 mono_mb_emit_byte (mb, CEE_CONV_I);
4773 mono_mb_emit_icall (mb, mono_marshal_alloc);
4774 mono_mb_emit_stloc (mb, 1);
4775 mono_mb_emit_ldloc (mb, 1);
4776 mono_mb_emit_stloc (mb, m->retobj_var);
4778 /* emit valuetype conversion code */
4779 emit_struct_conv (mb, klass, FALSE);
4783 g_assert_not_reached ();
4790 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4791 MonoMarshalSpec *spec,
4792 int conv_arg, MonoType **conv_arg_type,
4793 MarshalAction action)
4797 case MARSHAL_ACTION_CONV_IN:
4798 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4800 case MARSHAL_ACTION_MANAGED_CONV_IN:
4801 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4805 MonoMethodBuilder *mb = m->mb;
4806 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4807 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4811 case MARSHAL_ACTION_CONV_IN:
4812 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4813 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4816 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4819 mono_mb_emit_ldarg (mb, argnum);
4820 mono_mb_emit_byte (mb, CEE_LDIND_I);
4822 mono_mb_emit_ldarg (mb, argnum);
4826 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4827 mono_mb_emit_exception_marshal_directive (mb, msg);
4829 mono_mb_emit_icall (mb, conv_to_icall (conv));
4831 mono_mb_emit_stloc (mb, conv_arg);
4835 case MARSHAL_ACTION_CONV_OUT:
4836 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4838 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4839 mono_mb_emit_exception_marshal_directive (mb, msg);
4843 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4844 static MonoMethod *m;
4847 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4852 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4853 mono_mb_emit_exception_marshal_directive (mb, msg);
4858 * Have to allocate a new string with the same length as the original, and
4859 * copy the contents of the buffer pointed to by CONV_ARG into it.
4861 g_assert (t->byref);
4862 mono_mb_emit_ldarg (mb, argnum);
4863 mono_mb_emit_ldloc (mb, conv_arg);
4864 mono_mb_emit_ldarg (mb, argnum);
4865 mono_mb_emit_byte (mb, CEE_LDIND_I);
4866 mono_mb_emit_managed_call (mb, m, NULL);
4867 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4868 mono_mb_emit_byte (mb, CEE_STIND_REF);
4869 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4870 mono_mb_emit_ldarg (mb, argnum);
4871 mono_mb_emit_ldloc (mb, conv_arg);
4872 mono_mb_emit_icall (mb, conv_to_icall (conv));
4873 mono_mb_emit_byte (mb, CEE_STIND_REF);
4878 mono_mb_emit_ldloc (mb, conv_arg);
4879 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4880 mono_mb_emit_icall (mb, mono_free_bstr);
4882 mono_mb_emit_icall (mb, mono_marshal_free);
4886 case MARSHAL_ACTION_PUSH:
4887 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4888 mono_mb_emit_ldloc_addr (mb, conv_arg);
4890 mono_mb_emit_ldloc (mb, conv_arg);
4893 case MARSHAL_ACTION_CONV_RESULT:
4894 mono_mb_emit_stloc (mb, 0);
4896 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4898 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4899 mono_mb_emit_exception_marshal_directive (mb, msg);
4903 mono_mb_emit_ldloc (mb, 0);
4904 mono_mb_emit_icall (mb, conv_to_icall (conv));
4905 mono_mb_emit_stloc (mb, 3);
4907 /* free the string */
4908 mono_mb_emit_ldloc (mb, 0);
4909 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4910 mono_mb_emit_icall (mb, mono_free_bstr);
4912 mono_mb_emit_icall (mb, mono_marshal_free);
4915 case MARSHAL_ACTION_MANAGED_CONV_IN:
4916 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4918 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4921 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4925 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4927 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4928 mono_mb_emit_exception_marshal_directive (mb, msg);
4932 mono_mb_emit_ldarg (mb, argnum);
4934 mono_mb_emit_byte (mb, CEE_LDIND_I);
4935 mono_mb_emit_icall (mb, conv_to_icall (conv));
4936 mono_mb_emit_stloc (mb, conv_arg);
4939 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4942 mono_mb_emit_ldarg (mb, argnum);
4943 mono_mb_emit_ldloc (mb, conv_arg);
4944 mono_mb_emit_icall (mb, conv_to_icall (conv));
4945 mono_mb_emit_byte (mb, CEE_STIND_I);
4950 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4951 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4952 /* We need to make a copy so the caller is able to free it */
4953 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4955 mono_mb_emit_icall (mb, conv_to_icall (conv));
4956 mono_mb_emit_stloc (mb, 3);
4960 g_assert_not_reached ();
4968 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4969 MonoMarshalSpec *spec, int conv_arg,
4970 MonoType **conv_arg_type, MarshalAction action)
4973 if (action == MARSHAL_ACTION_CONV_IN)
4974 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4976 MonoMethodBuilder *mb = m->mb;
4979 case MARSHAL_ACTION_CONV_IN: {
4980 MonoType *intptr_type;
4981 int dar_release_slot, pos;
4983 intptr_type = &mono_defaults.int_class->byval_arg;
4984 conv_arg = mono_mb_add_local (mb, intptr_type);
4985 *conv_arg_type = intptr_type;
4987 if (!sh_dangerous_add_ref)
4988 init_safe_handle ();
4990 mono_mb_emit_ldarg (mb, argnum);
4991 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4992 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
4994 mono_mb_patch_branch (mb, pos);
4997 * My tests in show that ref SafeHandles are not really
4998 * passed as ref objects. Instead a NULL is passed as the
5001 mono_mb_emit_icon (mb, 0);
5002 mono_mb_emit_stloc (mb, conv_arg);
5006 /* Create local to hold the ref parameter to DangerousAddRef */
5007 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5009 /* set release = false; */
5010 mono_mb_emit_icon (mb, 0);
5011 mono_mb_emit_stloc (mb, dar_release_slot);
5013 /* safehandle.DangerousAddRef (ref release) */
5014 mono_mb_emit_ldarg (mb, argnum);
5015 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5016 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5018 /* Pull the handle field from SafeHandle */
5019 mono_mb_emit_ldarg (mb, argnum);
5020 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5021 mono_mb_emit_byte (mb, CEE_LDIND_I);
5022 mono_mb_emit_stloc (mb, conv_arg);
5027 case MARSHAL_ACTION_PUSH:
5029 mono_mb_emit_ldloc_addr (mb, conv_arg);
5031 mono_mb_emit_ldloc (mb, conv_arg);
5034 case MARSHAL_ACTION_CONV_OUT: {
5035 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5036 int dar_release_slot = conv_arg + 1;
5039 if (!sh_dangerous_release)
5040 init_safe_handle ();
5046 * My tests indicate that ref SafeHandles parameters are not actually
5047 * passed by ref, but instead a new Handle is created regardless of
5048 * whether a change happens in the unmanaged side.
5050 * Also, the Handle is created before calling into unmanaged code,
5051 * but we do not support that mechanism (getting to the original
5052 * handle) and it makes no difference where we create this
5054 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5056 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5059 /* refval = new SafeHandleDerived ()*/
5060 mono_mb_emit_ldarg (mb, argnum);
5061 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5062 mono_mb_emit_byte (mb, CEE_STIND_REF);
5064 /* refval.handle = returned_handle */
5065 mono_mb_emit_ldarg (mb, argnum);
5066 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5067 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5068 mono_mb_emit_ldloc (mb, conv_arg);
5069 mono_mb_emit_byte (mb, CEE_STIND_I);
5071 mono_mb_emit_ldloc (mb, dar_release_slot);
5072 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5073 mono_mb_emit_ldarg (mb, argnum);
5074 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5075 mono_mb_patch_branch (mb, label_next);
5080 case MARSHAL_ACTION_CONV_RESULT: {
5081 MonoMethod *ctor = NULL;
5082 int intptr_handle_slot;
5084 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5085 mono_mb_emit_byte (mb, CEE_POP);
5086 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5090 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5092 mono_mb_emit_byte (mb, CEE_POP);
5093 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5096 /* Store the IntPtr results into a local */
5097 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5098 mono_mb_emit_stloc (mb, intptr_handle_slot);
5100 /* Create return value */
5101 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5102 mono_mb_emit_stloc (mb, 3);
5104 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5105 mono_mb_emit_ldloc (mb, 3);
5106 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5107 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5108 mono_mb_emit_byte (mb, CEE_STIND_I);
5112 case MARSHAL_ACTION_MANAGED_CONV_IN:
5113 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5116 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5117 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5120 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5121 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5124 printf ("Unhandled case for MarshalAction: %d\n", action);
5132 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5133 MonoMarshalSpec *spec, int conv_arg,
5134 MonoType **conv_arg_type, MarshalAction action)
5137 if (action == MARSHAL_ACTION_CONV_IN)
5138 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5140 MonoMethodBuilder *mb = m->mb;
5143 case MARSHAL_ACTION_CONV_IN: {
5144 MonoType *intptr_type;
5146 intptr_type = &mono_defaults.int_class->byval_arg;
5147 conv_arg = mono_mb_add_local (mb, intptr_type);
5148 *conv_arg_type = intptr_type;
5151 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5152 mono_mb_emit_exception_marshal_directive (mb, msg);
5155 mono_mb_emit_ldarg_addr (mb, argnum);
5156 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5157 mono_mb_emit_byte (mb, CEE_ADD);
5158 mono_mb_emit_byte (mb, CEE_LDIND_I);
5159 mono_mb_emit_stloc (mb, conv_arg);
5163 case MARSHAL_ACTION_PUSH:
5164 mono_mb_emit_ldloc (mb, conv_arg);
5167 case MARSHAL_ACTION_CONV_OUT: {
5168 /* no resource release required */
5172 case MARSHAL_ACTION_CONV_RESULT: {
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);
5178 case MARSHAL_ACTION_MANAGED_CONV_IN:
5179 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5182 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5183 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5186 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5187 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5190 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5198 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5199 MonoMarshalSpec *spec,
5200 int conv_arg, MonoType **conv_arg_type,
5201 MarshalAction action)
5204 if (action == MARSHAL_ACTION_CONV_IN)
5205 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5207 MonoMethodBuilder *mb = m->mb;
5208 MonoClass *klass = mono_class_from_mono_type (t);
5212 case MARSHAL_ACTION_CONV_IN:
5213 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5214 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5216 m->orig_conv_args [argnum] = 0;
5218 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5219 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5220 mono_mb_emit_exception_marshal_directive (mb, msg);
5224 if (klass->delegate) {
5226 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5227 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5228 mono_mb_emit_exception_marshal_directive (mb, msg);
5230 mono_mb_emit_byte (mb, CEE_LDNULL);
5231 mono_mb_emit_stloc (mb, conv_arg);
5233 mono_mb_emit_ldarg (mb, argnum);
5234 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5235 mono_mb_emit_stloc (mb, conv_arg);
5237 } else if (klass == mono_defaults.stringbuilder_class) {
5238 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5239 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5243 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5244 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5245 mono_mb_emit_exception_marshal_directive (mb, msg);
5251 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5255 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5256 mono_mb_emit_exception_marshal_directive (mb, msg);
5260 mono_mb_emit_ldarg (mb, argnum);
5262 mono_mb_emit_byte (mb, CEE_LDIND_I);
5264 mono_mb_emit_icall (mb, conv_to_icall (conv));
5265 mono_mb_emit_stloc (mb, conv_arg);
5266 } else if (klass->blittable) {
5267 mono_mb_emit_byte (mb, CEE_LDNULL);
5268 mono_mb_emit_stloc (mb, conv_arg);
5270 mono_mb_emit_ldarg (mb, argnum);
5271 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5273 mono_mb_emit_ldarg (mb, argnum);
5274 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5275 mono_mb_emit_stloc (mb, conv_arg);
5277 mono_mb_patch_branch (mb, pos);
5280 mono_mb_emit_byte (mb, CEE_LDNULL);
5281 mono_mb_emit_stloc (mb, conv_arg);
5284 /* we dont need any conversions for out parameters */
5285 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5288 mono_mb_emit_ldarg (mb, argnum);
5289 mono_mb_emit_byte (mb, CEE_LDIND_I);
5292 mono_mb_emit_ldarg (mb, argnum);
5293 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5294 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5297 /* store the address of the source into local variable 0 */
5298 mono_mb_emit_stloc (mb, 0);
5299 mono_mb_emit_ldloc (mb, 0);
5300 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5302 /* allocate space for the native struct and store the address */
5303 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5304 mono_mb_emit_byte (mb, CEE_PREFIX1);
5305 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5306 mono_mb_emit_stloc (mb, conv_arg);
5309 /* Need to store the original buffer so we can free it later */
5310 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5311 mono_mb_emit_ldloc (mb, conv_arg);
5312 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5315 /* set the src_ptr */
5316 mono_mb_emit_ldloc (mb, 0);
5317 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5318 mono_mb_emit_stloc (mb, 0);
5321 mono_mb_emit_ldloc (mb, conv_arg);
5322 mono_mb_emit_stloc (mb, 1);
5324 /* emit valuetype conversion code */
5325 emit_struct_conv (mb, klass, FALSE);
5327 mono_mb_patch_branch (mb, pos);
5331 case MARSHAL_ACTION_CONV_OUT:
5332 if (klass == mono_defaults.stringbuilder_class) {
5334 MonoMarshalNative encoding;
5335 MonoMarshalConv conv;
5337 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5338 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5340 g_assert (encoding != -1);
5343 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5347 mono_mb_emit_ldarg (mb, argnum);
5348 mono_mb_emit_ldloc (mb, conv_arg);
5351 case MONO_NATIVE_LPWSTR:
5352 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5354 case MONO_NATIVE_LPSTR:
5355 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5358 g_assert_not_reached ();
5361 mono_mb_emit_byte (mb, CEE_STIND_REF);
5363 mono_mb_emit_ldarg (mb, argnum);
5364 mono_mb_emit_ldloc (mb, conv_arg);
5366 mono_mb_emit_icall (mb, conv_to_icall (conv));
5370 mono_mb_emit_ldloc (mb, conv_arg);
5371 mono_mb_emit_icall (mb, mono_marshal_free);
5376 if (klass->delegate) {
5378 mono_mb_emit_ldarg (mb, argnum);
5379 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5380 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5381 mono_mb_emit_ldloc (mb, conv_arg);
5382 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5383 mono_mb_emit_byte (mb, CEE_STIND_REF);
5388 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5389 /* allocate a new object */
5390 mono_mb_emit_ldarg (mb, argnum);
5391 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5392 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5393 mono_mb_emit_byte (mb, CEE_STIND_REF);
5396 /* dst = *argument */
5397 mono_mb_emit_ldarg (mb, argnum);
5400 mono_mb_emit_byte (mb, CEE_LDIND_I);
5402 mono_mb_emit_stloc (mb, 1);
5404 mono_mb_emit_ldloc (mb, 1);
5405 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5407 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5408 mono_mb_emit_ldloc (mb, 1);
5409 mono_mb_emit_icon (mb, sizeof (MonoObject));
5410 mono_mb_emit_byte (mb, CEE_ADD);
5411 mono_mb_emit_stloc (mb, 1);
5413 /* src = tmp_locals [i] */
5414 mono_mb_emit_ldloc (mb, conv_arg);
5415 mono_mb_emit_stloc (mb, 0);
5417 /* emit valuetype conversion code */
5418 emit_struct_conv (mb, klass, TRUE);
5420 /* Free the structure returned by the native code */
5421 emit_struct_free (mb, klass, conv_arg);
5423 if (m->orig_conv_args [argnum]) {
5425 * If the native function changed the pointer, then free
5426 * the original structure plus the new pointer.
5428 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5429 mono_mb_emit_ldloc (mb, conv_arg);
5430 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5432 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5433 g_assert (m->orig_conv_args [argnum]);
5435 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5438 mono_mb_emit_ldloc (mb, conv_arg);
5439 mono_mb_emit_icall (mb, mono_marshal_free);
5441 mono_mb_patch_branch (mb, pos2);
5445 /* Free the original structure passed to native code */
5446 emit_struct_free (mb, klass, conv_arg);
5448 mono_mb_patch_branch (mb, pos);
5451 case MARSHAL_ACTION_PUSH:
5453 mono_mb_emit_ldloc_addr (mb, conv_arg);
5455 mono_mb_emit_ldloc (mb, conv_arg);
5458 case MARSHAL_ACTION_CONV_RESULT:
5459 if (klass->delegate) {
5460 g_assert (!t->byref);
5461 mono_mb_emit_stloc (mb, 0);
5462 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5463 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5464 mono_mb_emit_ldloc (mb, 0);
5465 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5466 mono_mb_emit_stloc (mb, 3);
5469 mono_mb_emit_stloc (mb, 0);
5471 /* Make a copy since emit_conv modifies local 0 */
5472 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5473 mono_mb_emit_ldloc (mb, 0);
5474 mono_mb_emit_stloc (mb, loc);
5476 mono_mb_emit_byte (mb, CEE_LDNULL);
5477 mono_mb_emit_stloc (mb, 3);
5479 mono_mb_emit_ldloc (mb, 0);
5480 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5482 /* allocate result object */
5484 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5485 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5486 mono_mb_emit_stloc (mb, 3);
5490 mono_mb_emit_ldloc (mb, 3);
5491 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5492 mono_mb_emit_stloc (mb, 1);
5494 /* emit conversion code */
5495 emit_struct_conv (mb, klass, TRUE);
5497 emit_struct_free (mb, klass, loc);
5499 /* Free the pointer allocated by unmanaged code */
5500 mono_mb_emit_ldloc (mb, loc);
5501 mono_mb_emit_icall (mb, mono_marshal_free);
5502 mono_mb_patch_branch (mb, pos);
5506 case MARSHAL_ACTION_MANAGED_CONV_IN:
5507 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5509 if (klass->delegate) {
5510 g_assert (!t->byref);
5511 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5512 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5513 mono_mb_emit_ldarg (mb, argnum);
5514 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5515 mono_mb_emit_stloc (mb, conv_arg);
5519 if (klass == mono_defaults.stringbuilder_class) {
5520 MonoMarshalNative encoding;
5522 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5525 g_assert (encoding == MONO_NATIVE_LPSTR);
5527 g_assert (!t->byref);
5528 g_assert (encoding != -1);
5530 mono_mb_emit_ldarg (mb, argnum);
5531 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5532 mono_mb_emit_stloc (mb, conv_arg);
5536 /* The class can not have an automatic layout */
5537 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5538 mono_mb_emit_auto_layout_exception (mb, klass);
5542 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5543 mono_mb_emit_byte (mb, CEE_LDNULL);
5544 mono_mb_emit_stloc (mb, conv_arg);
5549 mono_mb_emit_ldarg (mb, argnum);
5553 /* Check for NULL and raise an exception */
5554 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5556 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5558 mono_mb_patch_branch (mb, pos2);
5559 mono_mb_emit_ldarg (mb, argnum);
5560 mono_mb_emit_byte (mb, CEE_LDIND_I);
5563 mono_mb_emit_stloc (mb, 0);
5565 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5566 mono_mb_emit_stloc (mb, conv_arg);
5568 mono_mb_emit_ldloc (mb, 0);
5569 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5571 /* Create and set dst */
5572 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5573 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5574 mono_mb_emit_stloc (mb, conv_arg);
5575 mono_mb_emit_ldloc (mb, conv_arg);
5576 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5577 mono_mb_emit_stloc (mb, 1);
5579 /* emit valuetype conversion code */
5580 emit_struct_conv (mb, klass, TRUE);
5582 mono_mb_patch_branch (mb, pos);
5585 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5587 /* Check for null */
5588 mono_mb_emit_ldloc (mb, conv_arg);
5589 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5590 mono_mb_emit_ldarg (mb, argnum);
5591 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5592 mono_mb_emit_byte (mb, CEE_STIND_REF);
5593 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5595 mono_mb_patch_branch (mb, pos);
5598 mono_mb_emit_ldloc (mb, conv_arg);
5599 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5600 mono_mb_emit_stloc (mb, 0);
5602 /* Allocate and set dest */
5603 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5604 mono_mb_emit_byte (mb, CEE_CONV_I);
5605 mono_mb_emit_icall (mb, mono_marshal_alloc);
5606 mono_mb_emit_stloc (mb, 1);
5608 /* Update argument pointer */
5609 mono_mb_emit_ldarg (mb, argnum);
5610 mono_mb_emit_ldloc (mb, 1);
5611 mono_mb_emit_byte (mb, CEE_STIND_I);
5613 /* emit valuetype conversion code */
5614 emit_struct_conv (mb, klass, FALSE);
5616 mono_mb_patch_branch (mb, pos2);
5618 /* byval [Out] marshalling */
5620 /* FIXME: Handle null */
5623 mono_mb_emit_ldloc (mb, conv_arg);
5624 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5625 mono_mb_emit_stloc (mb, 0);
5628 mono_mb_emit_ldarg (mb, argnum);
5629 mono_mb_emit_stloc (mb, 1);
5631 /* emit valuetype conversion code */
5632 emit_struct_conv (mb, klass, FALSE);
5636 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5637 if (klass->delegate) {
5638 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5639 mono_mb_emit_stloc (mb, 3);
5643 /* The class can not have an automatic layout */
5644 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5645 mono_mb_emit_auto_layout_exception (mb, klass);
5649 mono_mb_emit_stloc (mb, 0);
5650 /* Check for null */
5651 mono_mb_emit_ldloc (mb, 0);
5652 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5653 mono_mb_emit_byte (mb, CEE_LDNULL);
5654 mono_mb_emit_stloc (mb, 3);
5655 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5657 mono_mb_patch_branch (mb, pos);
5660 mono_mb_emit_ldloc (mb, 0);
5661 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5662 mono_mb_emit_stloc (mb, 0);
5664 /* Allocate and set dest */
5665 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5666 mono_mb_emit_byte (mb, CEE_CONV_I);
5667 mono_mb_emit_icall (mb, mono_marshal_alloc);
5668 mono_mb_emit_byte (mb, CEE_DUP);
5669 mono_mb_emit_stloc (mb, 1);
5670 mono_mb_emit_stloc (mb, 3);
5672 emit_struct_conv (mb, klass, FALSE);
5674 mono_mb_patch_branch (mb, pos2);
5678 g_assert_not_reached ();
5689 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5690 MonoMarshalSpec *spec,
5691 int conv_arg, MonoType **conv_arg_type,
5692 MarshalAction action)
5694 MonoMethodBuilder *mb = m->mb;
5695 static MonoMethod *get_object_for_native_variant = NULL;
5696 static MonoMethod *get_native_variant_for_object = NULL;
5698 if (!get_object_for_native_variant)
5699 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5700 g_assert (get_object_for_native_variant);
5702 if (!get_native_variant_for_object)
5703 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5704 g_assert (get_native_variant_for_object);
5707 case MARSHAL_ACTION_CONV_IN: {
5708 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5711 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5713 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5715 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5718 mono_mb_emit_ldarg (mb, argnum);
5720 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5721 mono_mb_emit_ldloc_addr (mb, conv_arg);
5722 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5726 case MARSHAL_ACTION_CONV_OUT: {
5727 static MonoMethod *variant_clear = NULL;
5730 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5731 g_assert (variant_clear);
5734 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5735 mono_mb_emit_ldarg (mb, argnum);
5736 mono_mb_emit_ldloc_addr (mb, conv_arg);
5737 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5738 mono_mb_emit_byte (mb, CEE_STIND_REF);
5741 mono_mb_emit_ldloc_addr (mb, conv_arg);
5742 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5746 case MARSHAL_ACTION_PUSH:
5748 mono_mb_emit_ldloc_addr (mb, conv_arg);
5750 mono_mb_emit_ldloc (mb, conv_arg);
5753 case MARSHAL_ACTION_CONV_RESULT: {
5754 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5755 mono_mb_emit_exception_marshal_directive (mb, msg);
5759 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5760 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5763 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5765 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5767 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5771 mono_mb_emit_ldarg (mb, argnum);
5773 mono_mb_emit_ldarg_addr (mb, argnum);
5774 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5775 mono_mb_emit_stloc (mb, conv_arg);
5779 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5780 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5781 mono_mb_emit_ldloc (mb, conv_arg);
5782 mono_mb_emit_ldarg (mb, argnum);
5783 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5788 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5789 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5790 mono_mb_emit_exception_marshal_directive (mb, msg);
5795 g_assert_not_reached ();
5801 #endif /* DISABLE_COM */
5802 #endif /* DISABLE_JIT */
5805 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5807 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5808 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5810 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5812 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5824 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5825 MonoMarshalSpec *spec,
5826 int conv_arg, MonoType **conv_arg_type,
5827 MarshalAction action)
5831 case MARSHAL_ACTION_CONV_IN:
5832 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5834 case MARSHAL_ACTION_MANAGED_CONV_IN:
5835 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5839 MonoMethodBuilder *mb = m->mb;
5840 MonoClass *klass = mono_class_from_mono_type (t);
5841 gboolean need_convert, need_free;
5842 MonoMarshalNative encoding;
5844 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5847 case MARSHAL_ACTION_CONV_IN:
5848 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5849 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5851 if (klass->element_class->blittable) {
5852 mono_mb_emit_ldarg (mb, argnum);
5854 mono_mb_emit_byte (mb, CEE_LDIND_I);
5855 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5856 mono_mb_emit_stloc (mb, conv_arg);
5859 guint32 label1, label2, label3;
5860 int index_var, src_var, dest_ptr, esize;
5861 MonoMarshalConv conv;
5862 gboolean is_string = FALSE;
5864 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5866 eklass = klass->element_class;
5868 if (eklass == mono_defaults.string_class) {
5870 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5872 else if (eklass == mono_defaults.stringbuilder_class) {
5874 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5879 if (is_string && conv == -1) {
5880 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5881 mono_mb_emit_exception_marshal_directive (mb, msg);
5885 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5886 mono_mb_emit_ldarg (mb, argnum);
5888 mono_mb_emit_byte (mb, CEE_LDIND_I);
5889 mono_mb_emit_stloc (mb, src_var);
5892 mono_mb_emit_ldloc (mb, src_var);
5893 mono_mb_emit_stloc (mb, conv_arg);
5894 mono_mb_emit_ldloc (mb, src_var);
5895 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5898 esize = sizeof (gpointer);
5899 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5900 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5902 esize = mono_class_native_size (eklass, NULL);
5904 /* allocate space for the native struct and store the address */
5905 mono_mb_emit_icon (mb, esize);
5906 mono_mb_emit_ldloc (mb, src_var);
5907 mono_mb_emit_byte (mb, CEE_LDLEN);
5909 if (eklass == mono_defaults.string_class) {
5910 /* Make the array bigger for the terminating null */
5911 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5912 mono_mb_emit_byte (mb, CEE_ADD);
5914 mono_mb_emit_byte (mb, CEE_MUL);
5915 mono_mb_emit_byte (mb, CEE_PREFIX1);
5916 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5917 mono_mb_emit_stloc (mb, conv_arg);
5919 mono_mb_emit_ldloc (mb, conv_arg);
5920 mono_mb_emit_stloc (mb, dest_ptr);
5922 /* Emit marshalling loop */
5923 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5924 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5925 mono_mb_emit_stloc (mb, index_var);
5926 label2 = mono_mb_get_label (mb);
5927 mono_mb_emit_ldloc (mb, index_var);
5928 mono_mb_emit_ldloc (mb, src_var);
5929 mono_mb_emit_byte (mb, CEE_LDLEN);
5930 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5932 /* Emit marshalling code */
5935 mono_mb_emit_ldloc (mb, dest_ptr);
5936 mono_mb_emit_ldloc (mb, src_var);
5937 mono_mb_emit_ldloc (mb, index_var);
5938 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5939 mono_mb_emit_icall (mb, conv_to_icall (conv));
5940 mono_mb_emit_byte (mb, CEE_STIND_I);
5942 /* set the src_ptr */
5943 mono_mb_emit_ldloc (mb, src_var);
5944 mono_mb_emit_ldloc (mb, index_var);
5945 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5946 mono_mb_emit_stloc (mb, 0);
5949 mono_mb_emit_ldloc (mb, dest_ptr);
5950 mono_mb_emit_stloc (mb, 1);
5952 /* emit valuetype conversion code */
5953 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5956 mono_mb_emit_add_to_local (mb, index_var, 1);
5957 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5959 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5961 mono_mb_patch_branch (mb, label3);
5963 if (eklass == mono_defaults.string_class) {
5964 /* Null terminate */
5965 mono_mb_emit_ldloc (mb, dest_ptr);
5966 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5967 mono_mb_emit_byte (mb, CEE_STIND_REF);
5970 mono_mb_patch_branch (mb, label1);
5975 case MARSHAL_ACTION_CONV_OUT:
5976 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5977 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);
5978 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5981 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
5982 int param_num = spec->data.array_data.param_num;
5983 MonoType *param_type;
5985 param_type = m->sig->params [param_num];
5987 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
5988 char *msg = g_strdup ("Not implemented.");
5989 mono_mb_emit_exception_marshal_directive (mb, msg);
5993 mono_mb_emit_ldarg (mb, argnum);
5995 /* Create the managed array */
5996 mono_mb_emit_ldarg (mb, param_num);
5997 if (m->sig->params [param_num]->byref)
5998 // FIXME: Support other types
5999 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6000 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6001 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6002 /* Store into argument */
6003 mono_mb_emit_byte (mb, CEE_STIND_I);
6006 if (need_convert || need_free) {
6007 /* FIXME: Optimize blittable case */
6009 guint32 label1, label2, label3;
6010 int index_var, src_ptr, loc, esize;
6012 eklass = klass->element_class;
6013 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6014 esize = sizeof (gpointer);
6015 else if (eklass == mono_defaults.char_class)
6016 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6018 esize = mono_class_native_size (eklass, NULL);
6019 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6020 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6023 mono_mb_emit_ldarg (mb, argnum);
6025 mono_mb_emit_byte (mb, CEE_LDIND_I);
6026 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6028 mono_mb_emit_ldloc (mb, conv_arg);
6029 mono_mb_emit_stloc (mb, src_ptr);
6031 /* Emit marshalling loop */
6032 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6033 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6034 mono_mb_emit_stloc (mb, index_var);
6035 label2 = mono_mb_get_label (mb);
6036 mono_mb_emit_ldloc (mb, index_var);
6037 mono_mb_emit_ldarg (mb, argnum);
6039 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6040 mono_mb_emit_byte (mb, CEE_LDLEN);
6041 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6043 /* Emit marshalling code */
6045 if (eklass == mono_defaults.stringbuilder_class) {
6046 gboolean need_free2;
6047 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6049 g_assert (conv != -1);
6052 mono_mb_emit_ldarg (mb, argnum);
6054 mono_mb_emit_byte (mb, CEE_LDIND_I);
6055 mono_mb_emit_ldloc (mb, index_var);
6056 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6059 mono_mb_emit_ldloc (mb, src_ptr);
6060 mono_mb_emit_byte (mb, CEE_LDIND_I);
6062 mono_mb_emit_icall (mb, conv_to_icall (conv));
6066 mono_mb_emit_ldloc (mb, src_ptr);
6067 mono_mb_emit_byte (mb, CEE_LDIND_I);
6069 mono_mb_emit_icall (mb, mono_marshal_free);
6072 else if (eklass == mono_defaults.string_class) {
6075 mono_mb_emit_ldloc (mb, src_ptr);
6076 mono_mb_emit_byte (mb, CEE_LDIND_I);
6078 mono_mb_emit_icall (mb, mono_marshal_free);
6083 /* set the src_ptr */
6084 mono_mb_emit_ldloc (mb, src_ptr);
6085 mono_mb_emit_stloc (mb, 0);
6088 mono_mb_emit_ldarg (mb, argnum);
6090 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6091 mono_mb_emit_ldloc (mb, index_var);
6092 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6093 mono_mb_emit_stloc (mb, 1);
6095 /* emit valuetype conversion code */
6096 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6100 mono_mb_emit_ldloc (mb, src_ptr);
6101 mono_mb_emit_stloc (mb, loc);
6102 mono_mb_emit_ldloc (mb, loc);
6104 emit_struct_free (mb, eklass, loc);
6108 mono_mb_emit_add_to_local (mb, index_var, 1);
6109 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6111 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6113 mono_mb_patch_branch (mb, label1);
6114 mono_mb_patch_branch (mb, label3);
6117 if (klass->element_class->blittable) {
6118 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6120 mono_mb_emit_ldarg (mb, argnum);
6122 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6123 mono_mb_emit_ldloc (mb, conv_arg);
6124 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6129 case MARSHAL_ACTION_PUSH:
6131 mono_mb_emit_ldloc_addr (mb, conv_arg);
6133 mono_mb_emit_ldloc (mb, conv_arg);
6136 case MARSHAL_ACTION_CONV_RESULT:
6137 /* fixme: we need conversions here */
6138 mono_mb_emit_stloc (mb, 3);
6141 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6143 guint32 label1, label2, label3;
6144 int index_var, src_ptr, esize, param_num, num_elem;
6145 MonoMarshalConv conv;
6146 gboolean is_string = FALSE;
6148 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6149 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6152 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6153 mono_mb_emit_exception_marshal_directive (mb, msg);
6157 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6158 mono_mb_emit_exception_marshal_directive (mb, msg);
6161 if (spec->native != MONO_NATIVE_LPARRAY) {
6162 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6163 mono_mb_emit_exception_marshal_directive (mb, msg);
6167 /* FIXME: t is from the method which is wrapped, not the delegate type */
6168 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6170 param_num = spec->data.array_data.param_num;
6171 num_elem = spec->data.array_data.num_elem;
6172 if (spec->data.array_data.elem_mult == 0)
6173 /* param_num is not specified */
6176 if (param_num == -1) {
6177 if (num_elem <= 0) {
6178 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6179 mono_mb_emit_exception_marshal_directive (mb, msg);
6184 /* FIXME: Optimize blittable case */
6186 eklass = klass->element_class;
6187 if (eklass == mono_defaults.string_class) {
6189 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6191 else if (eklass == mono_defaults.stringbuilder_class) {
6193 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6198 mono_marshal_load_type_info (eklass);
6201 esize = sizeof (gpointer);
6203 esize = mono_class_native_size (eklass, NULL);
6204 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6206 mono_mb_emit_byte (mb, CEE_LDNULL);
6207 mono_mb_emit_stloc (mb, conv_arg);
6209 /* Check param index */
6210 if (param_num != -1) {
6211 if (param_num >= m->sig->param_count) {
6212 char *msg = g_strdup ("Array size control parameter index is out of range.");
6213 mono_mb_emit_exception_marshal_directive (mb, msg);
6216 switch (m->sig->params [param_num]->type) {
6229 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6230 mono_mb_emit_exception_marshal_directive (mb, msg);
6237 mono_mb_emit_ldarg (mb, argnum);
6238 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6240 mono_mb_emit_ldarg (mb, argnum);
6241 mono_mb_emit_stloc (mb, src_ptr);
6243 /* Create managed array */
6245 * The LPArray marshalling spec says that sometimes param_num starts
6246 * from 1, sometimes it starts from 0. But MS seems to allways start
6250 if (param_num == -1) {
6251 mono_mb_emit_icon (mb, num_elem);
6253 mono_mb_emit_ldarg (mb, param_num);
6255 mono_mb_emit_icon (mb, num_elem);
6256 mono_mb_emit_byte (mb, CEE_ADD);
6258 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6261 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6262 mono_mb_emit_stloc (mb, conv_arg);
6264 if (eklass->blittable) {
6265 mono_mb_emit_ldloc (mb, conv_arg);
6266 mono_mb_emit_byte (mb, CEE_CONV_I);
6267 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6268 mono_mb_emit_byte (mb, CEE_ADD);
6269 mono_mb_emit_ldarg (mb, argnum);
6270 mono_mb_emit_ldloc (mb, conv_arg);
6271 mono_mb_emit_byte (mb, CEE_LDLEN);
6272 mono_mb_emit_icon (mb, esize);
6273 mono_mb_emit_byte (mb, CEE_MUL);
6274 mono_mb_emit_byte (mb, CEE_PREFIX1);
6275 mono_mb_emit_byte (mb, CEE_CPBLK);
6279 /* Emit marshalling loop */
6280 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6281 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6282 mono_mb_emit_stloc (mb, index_var);
6283 label2 = mono_mb_get_label (mb);
6284 mono_mb_emit_ldloc (mb, index_var);
6285 mono_mb_emit_ldloc (mb, conv_arg);
6286 mono_mb_emit_byte (mb, CEE_LDLEN);
6287 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6289 /* Emit marshalling code */
6291 g_assert (conv != -1);
6293 mono_mb_emit_ldloc (mb, conv_arg);
6294 mono_mb_emit_ldloc (mb, index_var);
6296 mono_mb_emit_ldloc (mb, src_ptr);
6297 mono_mb_emit_byte (mb, CEE_LDIND_I);
6299 mono_mb_emit_icall (mb, conv_to_icall (conv));
6300 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6303 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6304 mono_mb_emit_exception_marshal_directive (mb, msg);
6308 mono_mb_emit_add_to_local (mb, index_var, 1);
6309 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6311 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6313 mono_mb_patch_branch (mb, label1);
6314 mono_mb_patch_branch (mb, label3);
6318 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6320 guint32 label1, label2, label3;
6321 int index_var, dest_ptr, esize, param_num, num_elem;
6322 MonoMarshalConv conv;
6323 gboolean is_string = FALSE;
6326 /* Already handled in CONV_IN */
6329 /* These are already checked in CONV_IN */
6330 g_assert (!t->byref);
6331 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6332 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6334 param_num = spec->data.array_data.param_num;
6335 num_elem = spec->data.array_data.num_elem;
6337 if (spec->data.array_data.elem_mult == 0)
6338 /* param_num is not specified */
6341 if (param_num == -1) {
6342 if (num_elem <= 0) {
6343 g_assert_not_reached ();
6347 /* FIXME: Optimize blittable case */
6349 eklass = klass->element_class;
6350 if (eklass == mono_defaults.string_class) {
6352 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6354 else if (eklass == mono_defaults.stringbuilder_class) {
6356 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6361 mono_marshal_load_type_info (eklass);
6364 esize = sizeof (gpointer);
6366 esize = mono_class_native_size (eklass, NULL);
6368 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6371 mono_mb_emit_ldloc (mb, conv_arg);
6372 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6374 mono_mb_emit_ldarg (mb, argnum);
6375 mono_mb_emit_stloc (mb, dest_ptr);
6377 if (eklass->blittable) {
6379 mono_mb_emit_ldarg (mb, argnum);
6381 mono_mb_emit_ldloc (mb, conv_arg);
6382 mono_mb_emit_byte (mb, CEE_CONV_I);
6383 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6384 mono_mb_emit_byte (mb, CEE_ADD);
6386 mono_mb_emit_ldloc (mb, conv_arg);
6387 mono_mb_emit_byte (mb, CEE_LDLEN);
6388 mono_mb_emit_icon (mb, esize);
6389 mono_mb_emit_byte (mb, CEE_MUL);
6390 mono_mb_emit_byte (mb, CEE_PREFIX1);
6391 mono_mb_emit_byte (mb, CEE_CPBLK);
6395 /* Emit marshalling loop */
6396 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6397 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6398 mono_mb_emit_stloc (mb, index_var);
6399 label2 = mono_mb_get_label (mb);
6400 mono_mb_emit_ldloc (mb, index_var);
6401 mono_mb_emit_ldloc (mb, conv_arg);
6402 mono_mb_emit_byte (mb, CEE_LDLEN);
6403 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6405 /* Emit marshalling code */
6407 g_assert (conv != -1);
6410 mono_mb_emit_ldloc (mb, dest_ptr);
6413 mono_mb_emit_ldloc (mb, conv_arg);
6414 mono_mb_emit_ldloc (mb, index_var);
6416 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6418 mono_mb_emit_icall (mb, conv_to_icall (conv));
6419 mono_mb_emit_byte (mb, CEE_STIND_I);
6422 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6423 mono_mb_emit_exception_marshal_directive (mb, msg);
6427 mono_mb_emit_add_to_local (mb, index_var, 1);
6428 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6430 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6432 mono_mb_patch_branch (mb, label1);
6433 mono_mb_patch_branch (mb, label3);
6437 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6439 guint32 label1, label2, label3;
6440 int index_var, src, dest, esize;
6441 MonoMarshalConv conv = -1;
6442 gboolean is_string = FALSE;
6444 g_assert (!t->byref);
6446 eklass = klass->element_class;
6448 mono_marshal_load_type_info (eklass);
6450 if (eklass == mono_defaults.string_class) {
6452 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6455 g_assert_not_reached ();
6459 esize = sizeof (gpointer);
6460 else if (eklass == mono_defaults.char_class)
6461 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6463 esize = mono_class_native_size (eklass, NULL);
6465 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6466 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6468 mono_mb_emit_stloc (mb, src);
6469 mono_mb_emit_ldloc (mb, src);
6470 mono_mb_emit_stloc (mb, 3);
6472 /* Check for null */
6473 mono_mb_emit_ldloc (mb, src);
6474 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6476 /* Allocate native array */
6477 mono_mb_emit_icon (mb, esize);
6478 mono_mb_emit_ldloc (mb, src);
6479 mono_mb_emit_byte (mb, CEE_LDLEN);
6481 if (eklass == mono_defaults.string_class) {
6482 /* Make the array bigger for the terminating null */
6483 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6484 mono_mb_emit_byte (mb, CEE_ADD);
6486 mono_mb_emit_byte (mb, CEE_MUL);
6487 mono_mb_emit_icall (mb, mono_marshal_alloc);
6488 mono_mb_emit_stloc (mb, dest);
6489 mono_mb_emit_ldloc (mb, dest);
6490 mono_mb_emit_stloc (mb, 3);
6492 /* Emit marshalling loop */
6493 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6494 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6495 mono_mb_emit_stloc (mb, index_var);
6496 label2 = mono_mb_get_label (mb);
6497 mono_mb_emit_ldloc (mb, index_var);
6498 mono_mb_emit_ldloc (mb, src);
6499 mono_mb_emit_byte (mb, CEE_LDLEN);
6500 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6502 /* Emit marshalling code */
6504 g_assert (conv != -1);
6507 mono_mb_emit_ldloc (mb, dest);
6510 mono_mb_emit_ldloc (mb, src);
6511 mono_mb_emit_ldloc (mb, index_var);
6513 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6515 mono_mb_emit_icall (mb, conv_to_icall (conv));
6516 mono_mb_emit_byte (mb, CEE_STIND_I);
6519 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6520 mono_mb_emit_exception_marshal_directive (mb, msg);
6524 mono_mb_emit_add_to_local (mb, index_var, 1);
6525 mono_mb_emit_add_to_local (mb, dest, esize);
6527 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6529 mono_mb_patch_branch (mb, label3);
6530 mono_mb_patch_branch (mb, label1);
6534 g_assert_not_reached ();
6541 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6544 return &mono_defaults.int32_class->byval_arg;
6546 switch (spec->native) {
6547 case MONO_NATIVE_I1:
6548 case MONO_NATIVE_U1:
6549 return &mono_defaults.byte_class->byval_arg;
6550 case MONO_NATIVE_VARIANTBOOL:
6551 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6552 return &mono_defaults.int16_class->byval_arg;
6553 case MONO_NATIVE_BOOLEAN:
6554 return &mono_defaults.int32_class->byval_arg;
6556 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6557 return &mono_defaults.int32_class->byval_arg;
6563 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6565 MonoClass* conv_arg_class = mono_defaults.int32_class;
6567 switch (spec->native) {
6568 case MONO_NATIVE_I1:
6569 case MONO_NATIVE_U1:
6570 conv_arg_class = mono_defaults.byte_class;
6571 if (ldop) *ldop = CEE_LDIND_I1;
6573 case MONO_NATIVE_VARIANTBOOL:
6574 conv_arg_class = mono_defaults.int16_class;
6575 if (ldop) *ldop = CEE_LDIND_I2;
6577 case MONO_NATIVE_BOOLEAN:
6580 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6583 return conv_arg_class;
6587 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6588 MonoMarshalSpec *spec,
6589 int conv_arg, MonoType **conv_arg_type,
6590 MarshalAction action)
6594 case MARSHAL_ACTION_CONV_IN:
6596 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6598 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6601 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6602 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6604 *conv_arg_type = &conv_arg_class->this_arg;
6606 *conv_arg_type = &conv_arg_class->byval_arg;
6612 MonoMethodBuilder *mb = m->mb;
6615 case MARSHAL_ACTION_CONV_IN: {
6616 MonoType *local_type;
6618 guint8 ldc_op = CEE_LDC_I4_1;
6620 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6622 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6624 *conv_arg_type = local_type;
6625 conv_arg = mono_mb_add_local (mb, local_type);
6627 mono_mb_emit_ldarg (mb, argnum);
6629 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6630 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6631 mono_mb_emit_byte (mb, ldc_op);
6632 mono_mb_emit_stloc (mb, conv_arg);
6633 mono_mb_patch_branch (mb, label_false);
6638 case MARSHAL_ACTION_CONV_OUT:
6640 int label_false, label_end;
6644 mono_mb_emit_ldarg (mb, argnum);
6645 mono_mb_emit_ldloc (mb, conv_arg);
6647 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6648 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6650 label_end = mono_mb_emit_branch (mb, CEE_BR);
6651 mono_mb_patch_branch (mb, label_false);
6652 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6653 mono_mb_patch_branch (mb, label_end);
6655 mono_mb_emit_byte (mb, CEE_STIND_I1);
6659 case MARSHAL_ACTION_PUSH:
6661 mono_mb_emit_ldloc_addr (mb, conv_arg);
6663 mono_mb_emit_ldloc (mb, conv_arg);
6665 mono_mb_emit_ldarg (mb, argnum);
6668 case MARSHAL_ACTION_CONV_RESULT:
6669 /* maybe we need to make sure that it fits within 8 bits */
6670 mono_mb_emit_stloc (mb, 3);
6673 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6674 MonoClass* conv_arg_class = mono_defaults.int32_class;
6675 guint8 ldop = CEE_LDIND_I4;
6676 int label_null, label_false;
6678 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6679 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6682 *conv_arg_type = &conv_arg_class->this_arg;
6684 *conv_arg_type = &conv_arg_class->byval_arg;
6687 mono_mb_emit_ldarg (mb, argnum);
6691 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6692 mono_mb_emit_ldarg (mb, argnum);
6693 mono_mb_emit_byte (mb, ldop);
6697 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6698 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6699 mono_mb_emit_stloc (mb, conv_arg);
6700 mono_mb_patch_branch (mb, label_false);
6703 mono_mb_patch_branch (mb, label_null);
6707 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6708 guint8 stop = CEE_STIND_I4;
6709 guint8 ldc_op = CEE_LDC_I4_1;
6710 int label_null,label_false, label_end;;
6715 switch (spec->native) {
6716 case MONO_NATIVE_I1:
6717 case MONO_NATIVE_U1:
6718 stop = CEE_STIND_I1;
6720 case MONO_NATIVE_VARIANTBOOL:
6721 stop = CEE_STIND_I2;
6722 ldc_op = CEE_LDC_I4_M1;
6730 mono_mb_emit_ldarg (mb, argnum);
6731 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6733 mono_mb_emit_ldarg (mb, argnum);
6734 mono_mb_emit_ldloc (mb, conv_arg);
6736 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6737 mono_mb_emit_byte (mb, ldc_op);
6738 label_end = mono_mb_emit_branch (mb, CEE_BR);
6740 mono_mb_patch_branch (mb, label_false);
6741 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6742 mono_mb_patch_branch (mb, label_end);
6744 mono_mb_emit_byte (mb, stop);
6745 mono_mb_patch_branch (mb, label_null);
6750 g_assert_not_reached ();
6757 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6758 MonoMarshalSpec *spec, int conv_arg,
6759 MonoType **conv_arg_type, MarshalAction action)
6762 MonoMethodBuilder *mb = m->mb;
6765 case MARSHAL_ACTION_CONV_IN:
6766 /* MS seems to allow this in some cases, ie. bxc #158 */
6768 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6769 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6770 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6775 case MARSHAL_ACTION_PUSH:
6776 mono_mb_emit_ldarg (mb, argnum);
6779 case MARSHAL_ACTION_CONV_RESULT:
6780 /* no conversions necessary */
6781 mono_mb_emit_stloc (mb, 3);
6792 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6793 MonoMarshalSpec *spec, int conv_arg,
6794 MonoType **conv_arg_type, MarshalAction action)
6797 MonoMethodBuilder *mb = m->mb;
6800 case MARSHAL_ACTION_PUSH:
6801 /* fixme: dont know how to marshal that. We cant simply
6802 * convert it to a one byte UTF8 character, because an
6803 * unicode character may need more that one byte in UTF8 */
6804 mono_mb_emit_ldarg (mb, argnum);
6807 case MARSHAL_ACTION_CONV_RESULT:
6808 /* fixme: we need conversions here */
6809 mono_mb_emit_stloc (mb, 3);
6820 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6821 MonoMarshalSpec *spec, int conv_arg,
6822 MonoType **conv_arg_type, MarshalAction action)
6825 MonoMethodBuilder *mb = m->mb;
6828 case MARSHAL_ACTION_PUSH:
6829 mono_mb_emit_ldarg (mb, argnum);
6832 case MARSHAL_ACTION_CONV_RESULT:
6833 /* no conversions necessary */
6834 mono_mb_emit_stloc (mb, 3);
6845 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6846 MonoMarshalSpec *spec, int conv_arg,
6847 MonoType **conv_arg_type, MarshalAction action)
6849 /* Ensure that we have marshalling info for this param */
6850 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6852 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6853 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6855 if (spec && spec->native == MONO_NATIVE_ASANY)
6856 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6859 case MONO_TYPE_VALUETYPE:
6860 if (t->data.klass == mono_defaults.handleref_class)
6861 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6863 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6864 case MONO_TYPE_STRING:
6865 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6866 case MONO_TYPE_CLASS:
6867 case MONO_TYPE_OBJECT:
6869 if (spec && spec->native == MONO_NATIVE_STRUCT)
6870 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6872 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6873 spec->native == MONO_NATIVE_IDISPATCH ||
6874 spec->native == MONO_NATIVE_INTERFACE))
6875 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6876 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6877 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6878 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6879 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6882 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6883 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6884 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6886 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6887 case MONO_TYPE_ARRAY:
6888 case MONO_TYPE_SZARRAY:
6889 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6890 case MONO_TYPE_BOOLEAN:
6891 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6893 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6894 case MONO_TYPE_CHAR:
6895 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6908 case MONO_TYPE_FNPTR:
6909 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6910 case MONO_TYPE_GENERICINST:
6911 if (mono_type_generic_inst_is_valuetype (t))
6912 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6914 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6922 * mono_marshal_emit_native_wrapper:
6923 * @image: the image to use for looking up custom marshallers
6924 * @sig: The signature of the native function
6925 * @piinfo: Marshalling information
6926 * @mspecs: Marshalling information
6927 * @aot: whenever the created method will be compiled by the AOT compiler
6928 * @method: if non-NULL, the pinvoke method to call
6929 * @check_exceptions: Whenever to check for pending exceptions after the native call
6930 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6932 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6935 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)
6937 EmitMarshalContext m;
6938 MonoMethodSignature *csig;
6940 int i, argnum, *tmp_locals;
6941 int type, param_shift = 0;
6942 static MonoMethodSignature *get_last_error_sig = NULL;
6944 memset (&m, 0, sizeof (m));
6949 /* we copy the signature, so that we can set pinvoke to 0 */
6951 /* The function address is passed as the first argument */
6952 g_assert (!sig->hasthis);
6955 csig = signature_dup (mb->method->klass->image, sig);
6963 /* we allocate local for use with emit_struct_conv() */
6964 /* allocate local 0 (pointer) src_ptr */
6965 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6966 /* allocate local 1 (pointer) dst_ptr */
6967 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6968 /* allocate local 2 (boolean) delete_old */
6969 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6971 /* delete_old = FALSE */
6972 mono_mb_emit_icon (mb, 0);
6973 mono_mb_emit_stloc (mb, 2);
6975 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6976 /* allocate local 3 to store the return value */
6977 mono_mb_add_local (mb, sig->ret);
6980 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
6981 /* Return type custom marshaling */
6983 * Since we can't determine the return type of the unmanaged function,
6984 * we assume it returns a pointer, and pass that pointer to
6985 * MarshalNativeToManaged.
6987 csig->ret = &mono_defaults.int_class->byval_arg;
6990 /* we first do all conversions */
6991 tmp_locals = alloca (sizeof (int) * sig->param_count);
6992 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
6994 for (i = 0; i < sig->param_count; i ++) {
6995 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
6998 /* push all arguments */
7001 mono_mb_emit_byte (mb, CEE_LDARG_0);
7003 for (i = 0; i < sig->param_count; i++) {
7004 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7007 /* call the native method */
7009 mono_mb_emit_byte (mb, CEE_LDARG_0);
7010 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7011 mono_mb_emit_byte (mb, CEE_LDIND_I);
7012 mono_mb_emit_calli (mb, csig);
7013 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7015 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7017 g_assert_not_reached ();
7022 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7023 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7024 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7025 mono_mb_emit_calli (mb, csig);
7027 mono_mb_emit_native_call (mb, csig, func);
7031 /* Set LastError if needed */
7032 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7033 if (!get_last_error_sig) {
7034 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7035 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7036 get_last_error_sig->pinvoke = 1;
7041 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7042 * clobber its value.
7044 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7045 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7047 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7051 /* convert the result */
7052 if (!sig->ret->byref) {
7053 MonoMarshalSpec *spec = mspecs [0];
7054 type = sig->ret->type;
7056 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7057 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7062 case MONO_TYPE_VOID:
7064 case MONO_TYPE_VALUETYPE:
7065 klass = sig->ret->data.klass;
7066 if (klass->enumtype) {
7067 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7070 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7084 case MONO_TYPE_FNPTR:
7085 case MONO_TYPE_STRING:
7086 case MONO_TYPE_CLASS:
7087 case MONO_TYPE_OBJECT:
7088 case MONO_TYPE_BOOLEAN:
7089 case MONO_TYPE_ARRAY:
7090 case MONO_TYPE_SZARRAY:
7091 case MONO_TYPE_CHAR:
7093 case MONO_TYPE_GENERICINST:
7094 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7096 case MONO_TYPE_TYPEDBYREF:
7098 g_warning ("return type 0x%02x unknown", sig->ret->type);
7099 g_assert_not_reached ();
7103 mono_mb_emit_stloc (mb, 3);
7107 * Need to call this after converting the result since MONO_VTADDR needs
7108 * to be adjacent to the call instruction.
7110 if (check_exceptions)
7111 emit_thread_interrupt_checkpoint (mb);
7113 /* we need to convert byref arguments back and free string arrays */
7114 for (i = 0; i < sig->param_count; i++) {
7115 MonoType *t = sig->params [i];
7116 MonoMarshalSpec *spec = mspecs [i + 1];
7118 argnum = i + param_shift;
7120 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7121 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7126 case MONO_TYPE_STRING:
7127 case MONO_TYPE_VALUETYPE:
7128 case MONO_TYPE_CLASS:
7129 case MONO_TYPE_OBJECT:
7130 case MONO_TYPE_SZARRAY:
7131 case MONO_TYPE_BOOLEAN:
7132 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7139 if (!MONO_TYPE_IS_VOID(sig->ret))
7140 mono_mb_emit_ldloc (mb, 3);
7142 mono_mb_emit_byte (mb, CEE_RET);
7144 #endif /* DISABLE_JIT */
7147 G_GNUC_UNUSED static void
7148 code_for (MonoMethod *method) {
7149 MonoMethodHeader *header = mono_method_get_header (method);
7150 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));
7154 * mono_marshal_get_native_wrapper:
7155 * @method: The MonoMethod to wrap.
7156 * @check_exceptions: Whenever to check for pending exceptions
7158 * generates IL code for the pinvoke wrapper (the generated method
7159 * calls the unmanaged code in piinfo->addr)
7160 * The wrapper info for the wrapper is a WrapperInfo structure.
7163 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7165 MonoMethodSignature *sig, *csig;
7166 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7167 MonoMethodBuilder *mb;
7168 MonoMarshalSpec **mspecs;
7171 gboolean pinvoke = FALSE;
7174 const char *exc_class = "MissingMethodException";
7175 const char *exc_arg = NULL;
7178 g_assert (method != NULL);
7179 g_assert (mono_method_signature (method)->pinvoke);
7182 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7184 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7185 if ((res = mono_marshal_find_in_cache (cache, method)))
7188 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7189 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7193 return mono_cominterop_get_native_wrapper (method);
7195 g_assert_not_reached ();
7199 sig = mono_method_signature (method);
7201 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7202 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7205 if (!piinfo->addr) {
7207 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7208 exc_arg = "Method contains unsupported native code";
7210 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7212 piinfo->addr = mono_lookup_internal_call (method);
7216 /* hack - redirect certain string constructors to CreateString */
7217 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7218 g_assert (!pinvoke);
7219 g_assert (method->string_ctor);
7220 g_assert (sig->hasthis);
7222 /* CreateString returns a value */
7223 csig = signature_dup (method->klass->image, sig);
7224 csig->ret = &mono_defaults.string_class->byval_arg;
7228 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7229 if (!strcmp ("CreateString", res->name) &&
7230 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7233 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7234 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7236 /* create a wrapper to preserve .ctor in stack trace */
7237 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7240 mono_mb_emit_byte (mb, CEE_LDARG_0);
7241 for (i = 1; i <= csig->param_count; i++)
7242 mono_mb_emit_ldarg (mb, i);
7243 mono_mb_emit_managed_call (mb, res, NULL);
7244 mono_mb_emit_byte (mb, CEE_RET);
7247 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7248 info->d.string_ctor.method = method;
7250 /* use native_wrapper_cache because internal calls are looked up there */
7251 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7252 csig->param_count + 1, info, NULL);
7259 /* exception will be thrown */
7260 piinfo->addr = NULL;
7261 g_warning ("cannot find CreateString for .ctor");
7264 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7266 mb->method->save_lmf = 1;
7269 * In AOT mode and embedding scenarios, it is possible that the icall is not
7270 * registered in the runtime doing the AOT compilation.
7272 if (!piinfo->addr && !aot) {
7274 mono_mb_emit_exception (mb, exc_class, exc_arg);
7276 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7277 info->d.managed_to_native.method = method;
7279 csig = signature_dup (method->klass->image, sig);
7281 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7282 csig->param_count + 16, info, NULL);
7288 /* internal calls: we simply push all arguments and call the method (no conversions) */
7289 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7291 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7293 csig = signature_dup (method->klass->image, sig);
7295 /* hack - string constructors returns a value */
7296 if (method->string_ctor)
7297 csig->ret = &mono_defaults.string_class->byval_arg;
7304 * Add a null check since public icalls can be called with 'call' which
7305 * does no such check.
7307 mono_mb_emit_byte (mb, CEE_LDARG_0);
7308 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7309 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7310 mono_mb_patch_branch (mb, pos);
7312 mono_mb_emit_byte (mb, CEE_LDARG_0);
7315 for (i = 0; i < sig->param_count; i++)
7316 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7319 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7320 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7321 mono_mb_emit_calli (mb, csig);
7323 g_assert (piinfo->addr);
7324 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7326 if (check_exceptions)
7327 emit_thread_interrupt_checkpoint (mb);
7328 mono_mb_emit_byte (mb, CEE_RET);
7330 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7331 info->d.managed_to_native.method = method;
7333 csig = signature_dup (method->klass->image, csig);
7335 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7344 g_assert (piinfo->addr);
7347 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7348 mono_method_get_marshal_info (method, mspecs);
7350 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7352 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7353 info->d.managed_to_native.method = method;
7355 csig = signature_dup (method->klass->image, sig);
7357 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7362 for (i = sig->param_count; i >= 0; i--)
7364 mono_metadata_free_marshal_spec (mspecs [i]);
7368 /* code_for (res); */
7374 * mono_marshal_get_native_func_wrapper:
7375 * @image: The image to use for memory allocation and for looking up custom marshallers.
7376 * @sig: The signature of the function
7377 * @func: The native function to wrap
7379 * Returns a wrapper method around native functions, similar to the pinvoke
7383 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7384 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7386 MonoMethodSignature *csig;
7388 SignaturePointerPair key, *new_key;
7389 MonoMethodBuilder *mb;
7398 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7399 if ((res = mono_marshal_find_in_cache (cache, &key)))
7402 name = g_strdup_printf ("wrapper_native_%p", func);
7403 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7404 mb->method->save_lmf = 1;
7407 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7410 csig = signature_dup (image, sig);
7413 new_key = g_new (SignaturePointerPair,1);
7414 new_key->sig = csig;
7415 new_key->pointer = func;
7417 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7423 mono_marshal_set_wrapper_info (res, NULL);
7429 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7433 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7435 MonoMethodSignature *sig, *csig;
7436 MonoMethodBuilder *mb;
7441 MonoMethodPInvoke mpiinfo;
7442 MonoMethodPInvoke *piinfo = &mpiinfo;
7443 MonoMarshalSpec **mspecs;
7444 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7445 MonoImage *image = invoke->klass->image;
7448 // FIXME: include UnmanagedFunctionPointerAttribute info
7451 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7453 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7454 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7457 memset (&mpiinfo, 0, sizeof (mpiinfo));
7458 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7460 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7461 mono_method_get_marshal_info (invoke, mspecs);
7462 /* Freed below so don't alloc from mempool */
7463 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7466 name = g_strdup_printf ("wrapper_aot_native");
7467 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7468 mb->method->save_lmf = 1;
7471 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7474 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7475 info->d.managed_to_native.method = invoke;
7477 g_assert (!sig->hasthis);
7478 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7480 res = mono_mb_create_and_cache_full (cache, invoke,
7481 mb, csig, csig->param_count + 16,
7485 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7487 mono_metadata_free_marshal_spec (mspecs [i]);
7495 * mono_marshal_emit_managed_wrapper:
7497 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7498 * the delegate which wraps the managed method to be called. For closed delegates,
7499 * it could have fewer parameters than the method it wraps.
7500 * THIS_LOC is the memory location where the target of the delegate is stored.
7503 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7506 MonoMethodSignature *sig, *csig;
7512 /* we first do all conversions */
7513 for (i = 0; i < sig->param_count; i ++) {
7514 MonoType *t = sig->params [i];
7517 case MONO_TYPE_OBJECT:
7518 case MONO_TYPE_CLASS:
7519 case MONO_TYPE_VALUETYPE:
7520 case MONO_TYPE_ARRAY:
7521 case MONO_TYPE_SZARRAY:
7522 case MONO_TYPE_STRING:
7523 case MONO_TYPE_BOOLEAN:
7524 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7528 if (!sig->ret->byref) {
7529 switch (sig->ret->type) {
7530 case MONO_TYPE_STRING:
7531 csig->ret = &mono_defaults.int_class->byval_arg;
7538 MonoMethodSignature *sig, *csig;
7540 gboolean closed = FALSE;
7545 /* allocate local 0 (pointer) src_ptr */
7546 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7547 /* allocate local 1 (pointer) dst_ptr */
7548 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7549 /* allocate local 2 (boolean) delete_old */
7550 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7552 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7553 /* Closed delegate */
7554 g_assert (sig->param_count == invoke_sig->param_count + 1);
7556 /* Use a new signature without the first argument */
7557 sig = mono_metadata_signature_dup (sig);
7558 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7559 sig->param_count --;
7562 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7563 /* allocate local 3 to store the return value */
7564 mono_mb_add_local (mb, sig->ret);
7567 mono_mb_emit_icon (mb, 0);
7568 mono_mb_emit_stloc (mb, 2);
7571 * Might need to attach the thread to the JIT or change the
7572 * domain for the callback.
7574 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7575 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7577 /* we first do all conversions */
7578 tmp_locals = alloca (sizeof (int) * sig->param_count);
7579 for (i = 0; i < sig->param_count; i ++) {
7580 MonoType *t = sig->params [i];
7583 case MONO_TYPE_OBJECT:
7584 case MONO_TYPE_CLASS:
7585 case MONO_TYPE_VALUETYPE:
7586 case MONO_TYPE_ARRAY:
7587 case MONO_TYPE_SZARRAY:
7588 case MONO_TYPE_STRING:
7589 case MONO_TYPE_BOOLEAN:
7590 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7599 emit_thread_interrupt_checkpoint (mb);
7602 if (target_handle) {
7603 mono_mb_emit_icon (mb, (gint32)target_handle);
7604 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7607 g_assert_not_reached ();
7609 } else if (closed) {
7610 mono_mb_emit_icon (mb, (gint32)target_handle);
7611 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7614 for (i = 0; i < sig->param_count; i++) {
7615 MonoType *t = sig->params [i];
7617 if (tmp_locals [i]) {
7619 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7621 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7624 mono_mb_emit_ldarg (mb, i);
7627 mono_mb_emit_managed_call (mb, method, NULL);
7629 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7630 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7631 } else if (!sig->ret->byref) {
7632 switch (sig->ret->type) {
7633 case MONO_TYPE_VOID:
7635 case MONO_TYPE_BOOLEAN:
7638 case MONO_TYPE_CHAR:
7650 case MONO_TYPE_OBJECT:
7651 mono_mb_emit_stloc (mb, 3);
7653 case MONO_TYPE_STRING:
7654 csig->ret = &mono_defaults.int_class->byval_arg;
7655 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7657 case MONO_TYPE_VALUETYPE:
7658 case MONO_TYPE_CLASS:
7659 case MONO_TYPE_SZARRAY:
7660 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7663 g_warning ("return type 0x%02x unknown", sig->ret->type);
7664 g_assert_not_reached ();
7667 mono_mb_emit_stloc (mb, 3);
7670 /* Convert byref arguments back */
7671 for (i = 0; i < sig->param_count; i ++) {
7672 MonoType *t = sig->params [i];
7673 MonoMarshalSpec *spec = mspecs [i + 1];
7675 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7676 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7678 else if (t->byref) {
7680 case MONO_TYPE_CLASS:
7681 case MONO_TYPE_VALUETYPE:
7682 case MONO_TYPE_OBJECT:
7683 case MONO_TYPE_STRING:
7684 case MONO_TYPE_BOOLEAN:
7685 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7691 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7692 /* The [Out] information is encoded in the delegate signature */
7694 case MONO_TYPE_SZARRAY:
7695 case MONO_TYPE_CLASS:
7696 case MONO_TYPE_VALUETYPE:
7697 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7700 g_assert_not_reached ();
7705 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7706 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7708 if (m->retobj_var) {
7709 mono_mb_emit_ldloc (mb, m->retobj_var);
7710 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7711 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7714 if (!MONO_TYPE_IS_VOID(sig->ret))
7715 mono_mb_emit_ldloc (mb, 3);
7716 mono_mb_emit_byte (mb, CEE_RET);
7725 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7727 MonoMethodSignature *sig;
7732 * Under windows, delegates passed to native code must use the STDCALL
7733 * calling convention.
7735 csig->call_convention = MONO_CALL_STDCALL;
7738 sig = mono_method_signature (method);
7740 /* Change default calling convention if needed */
7741 /* Why is this a modopt ? */
7742 if (sig->ret && sig->ret->num_mods) {
7743 for (i = 0; i < sig->ret->num_mods; ++i) {
7745 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7746 g_assert (mono_error_ok (&error));
7747 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7748 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7749 csig->call_convention = MONO_CALL_C;
7750 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7751 csig->call_convention = MONO_CALL_STDCALL;
7752 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7753 csig->call_convention = MONO_CALL_FASTCALL;
7754 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7755 csig->call_convention = MONO_CALL_THISCALL;
7762 * generates IL code to call managed methods from unmanaged code
7763 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7766 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7768 static MonoClass *UnmanagedFunctionPointerAttribute;
7769 MonoMethodSignature *sig, *csig, *invoke_sig;
7770 MonoMethodBuilder *mb;
7771 MonoMethod *res, *invoke;
7772 MonoMarshalSpec **mspecs;
7773 MonoMethodPInvoke piinfo;
7776 EmitMarshalContext m;
7778 g_assert (method != NULL);
7779 g_assert (!mono_method_signature (method)->pinvoke);
7782 * FIXME: Should cache the method+delegate type pair, since the same method
7783 * could be called with different delegates, thus different marshalling
7786 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7787 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7790 invoke = mono_get_delegate_invoke (delegate_klass);
7791 invoke_sig = mono_method_signature (invoke);
7793 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7794 mono_method_get_marshal_info (invoke, mspecs);
7796 sig = mono_method_signature (method);
7798 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7800 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7801 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7803 /* we copy the signature, so that we can modify it */
7805 /* Need to free this later */
7806 csig = mono_metadata_signature_dup (invoke_sig);
7808 csig = signature_dup (method->klass->image, invoke_sig);
7812 memset (&m, 0, sizeof (m));
7818 m.image = method->klass->image;
7820 mono_marshal_set_callconv_from_modopt (invoke, csig);
7822 /* Handle the UnmanagedFunctionPointerAttribute */
7823 if (!UnmanagedFunctionPointerAttribute)
7824 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7826 /* The attribute is only available in Net 2.0 */
7827 if (UnmanagedFunctionPointerAttribute) {
7828 MonoCustomAttrInfo *cinfo;
7829 MonoCustomAttrEntry *attr;
7832 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7833 * contents of the attribute without constructing it, as that might not be
7834 * possible when running in cross-compiling mode.
7836 cinfo = mono_custom_attrs_from_class (delegate_klass);
7839 for (i = 0; i < cinfo->num_attrs; ++i) {
7840 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7841 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7842 attr = &cinfo->attrs [i];
7848 MonoArray *typed_args, *named_args;
7849 CattrNamedArg *arginfo;
7853 MonoBoolean set_last_error = 0;
7856 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7857 g_assert (mono_error_ok (&error));
7858 g_assert (mono_array_length (typed_args) == 1);
7861 o = mono_array_get (typed_args, MonoObject*, 0);
7862 call_conv = *(gint32*)mono_object_unbox (o);
7865 for (i = 0; i < mono_array_length (named_args); ++i) {
7866 CattrNamedArg *narg = &arginfo [i];
7868 o = mono_array_get (named_args, MonoObject*, i);
7870 g_assert (narg->field);
7871 if (!strcmp (narg->field->name, "CharSet")) {
7872 charset = *(gint32*)mono_object_unbox (o);
7873 } else if (!strcmp (narg->field->name, "SetLastError")) {
7874 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7875 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7876 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7877 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7878 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7880 g_assert_not_reached ();
7886 memset (&piinfo, 0, sizeof (piinfo));
7888 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7890 csig->call_convention = call_conv - 1;
7893 if (cinfo && !cinfo->cached)
7894 mono_custom_attrs_free (cinfo);
7897 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7899 if (!target_handle) {
7902 // FIXME: Associate it with the method+delegate_klass pair
7903 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7904 info->d.native_to_managed.method = method;
7905 info->d.native_to_managed.klass = delegate_klass;
7907 res = mono_mb_create_and_cache_full (cache, method,
7908 mb, csig, sig->param_count + 16,
7914 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7918 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7920 mono_metadata_free_marshal_spec (mspecs [i]);
7923 /* code_for (res); */
7929 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7932 MonoMethodSignature *sig;
7933 MonoMethodBuilder *mb;
7938 method = mono_get_method (image, token, NULL);
7941 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7942 MonoMethodSignature *csig;
7943 MonoMarshalSpec **mspecs;
7944 EmitMarshalContext m;
7946 sig = mono_method_signature (method);
7947 g_assert (!sig->hasthis);
7949 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
7950 mono_method_get_marshal_info (method, mspecs);
7952 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7953 csig = signature_dup (image, sig);
7957 memset (&m, 0, sizeof (m));
7965 mono_marshal_set_callconv_from_modopt (method, csig);
7967 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
7969 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
7974 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7977 for (i = sig->param_count; i >= 0; i--)
7979 mono_metadata_free_marshal_spec (mspecs [i]);
7982 return mono_compile_method (method);
7985 sig = mono_method_signature (method);
7986 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7988 param_count = sig->param_count + sig->hasthis;
7990 for (i = 0; i < param_count; i++)
7991 mono_mb_emit_ldarg (mb, i);
7993 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
7994 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
7996 mono_mb_emit_op (mb, CEE_CALL, method);
7997 mono_mb_emit_byte (mb, CEE_RET);
8002 method = mono_mb_create (mb, sig, param_count, NULL);
8005 return mono_compile_method (method);
8009 * This does the equivalent of mono_object_castclass_with_cache.
8010 * The wrapper info for the wrapper is a WrapperInfo structure.
8013 mono_marshal_get_castclass_with_cache (void)
8015 static MonoMethod *cached;
8017 MonoMethodBuilder *mb;
8018 MonoMethodSignature *sig;
8019 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8025 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8026 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8027 sig->params [0] = &mono_defaults.object_class->byval_arg;
8028 sig->params [1] = &mono_defaults.int_class->byval_arg;
8029 sig->params [2] = &mono_defaults.int_class->byval_arg;
8030 sig->ret = &mono_defaults.object_class->byval_arg;
8034 /* allocate local 0 (pointer) obj_vtable */
8035 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8038 mono_mb_emit_ldarg (mb, 0);
8039 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8041 /*obj_vtable = obj->vtable;*/
8042 mono_mb_emit_ldarg (mb, 0);
8043 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8044 mono_mb_emit_byte (mb, CEE_LDIND_I);
8045 mono_mb_emit_stloc (mb, 0);
8048 mono_mb_emit_ldarg (mb, 2);
8049 mono_mb_emit_byte (mb, CEE_LDIND_I);
8050 mono_mb_emit_ldloc (mb, 0);
8052 /*if (*cache == obj_vtable)*/
8053 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8056 mono_mb_emit_ldarg (mb, 0);
8057 mono_mb_emit_byte (mb, CEE_RET);
8059 mono_mb_patch_branch (mb, cache_miss_pos);
8060 /*if (mono_object_isinst (obj, klass)) */
8061 mono_mb_emit_ldarg (mb, 0);
8062 mono_mb_emit_ldarg (mb, 1);
8063 mono_mb_emit_icall (mb, mono_object_isinst);
8064 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8066 /**cache = obj_vtable;*/
8067 mono_mb_emit_ldarg (mb, 2);
8068 mono_mb_emit_ldloc (mb, 0);
8069 mono_mb_emit_byte (mb, CEE_STIND_I);
8072 mono_mb_emit_ldarg (mb, 0);
8073 mono_mb_emit_byte (mb, CEE_RET);
8076 mono_mb_patch_branch (mb, invalid_cast_pos);
8077 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8080 mono_mb_patch_branch (mb, return_null_pos);
8081 mono_mb_emit_byte (mb, CEE_LDNULL);
8082 mono_mb_emit_byte (mb, CEE_RET);
8083 #endif /* DISABLE_JIT */
8085 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8086 res = mono_mb_create (mb, sig, 8, info);
8089 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8090 mono_free_method (res);
8091 mono_metadata_free_method_signature (sig);
8099 * This does the equivalent of mono_object_isinst_with_cache.
8100 * The wrapper info for the wrapper is a WrapperInfo structure.
8103 mono_marshal_get_isinst_with_cache (void)
8105 static MonoMethod *cached;
8107 MonoMethodBuilder *mb;
8108 MonoMethodSignature *sig;
8109 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8115 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8116 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8117 sig->params [0] = &mono_defaults.object_class->byval_arg;
8118 sig->params [1] = &mono_defaults.int_class->byval_arg;
8119 sig->params [2] = &mono_defaults.int_class->byval_arg;
8120 sig->ret = &mono_defaults.object_class->byval_arg;
8124 /* allocate local 0 (pointer) obj_vtable */
8125 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8126 /* allocate local 1 (pointer) cached_vtable */
8127 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8130 mono_mb_emit_ldarg (mb, 0);
8131 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8133 /*obj_vtable = obj->vtable;*/
8134 mono_mb_emit_ldarg (mb, 0);
8135 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8136 mono_mb_emit_byte (mb, CEE_LDIND_I);
8137 mono_mb_emit_stloc (mb, 0);
8139 /* cached_vtable = *cache*/
8140 mono_mb_emit_ldarg (mb, 2);
8141 mono_mb_emit_byte (mb, CEE_LDIND_I);
8142 mono_mb_emit_stloc (mb, 1);
8144 mono_mb_emit_ldloc (mb, 1);
8145 mono_mb_emit_byte (mb, CEE_LDC_I4);
8146 mono_mb_emit_i4 (mb, ~0x1);
8147 mono_mb_emit_byte (mb, CEE_CONV_I);
8148 mono_mb_emit_byte (mb, CEE_AND);
8149 mono_mb_emit_ldloc (mb, 0);
8150 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8151 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8153 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8154 mono_mb_emit_ldloc (mb, 1);
8155 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8156 mono_mb_emit_byte (mb, CEE_CONV_U);
8157 mono_mb_emit_byte (mb, CEE_AND);
8158 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8161 mono_mb_emit_ldarg (mb, 0);
8162 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8165 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8166 mono_mb_emit_byte (mb, CEE_LDNULL);
8168 mono_mb_patch_branch (mb, cache_hit_pos);
8169 mono_mb_emit_byte (mb, CEE_RET);
8171 mono_mb_patch_branch (mb, cache_miss_pos);
8172 /*if (mono_object_isinst (obj, klass)) */
8173 mono_mb_emit_ldarg (mb, 0);
8174 mono_mb_emit_ldarg (mb, 1);
8175 mono_mb_emit_icall (mb, mono_object_isinst);
8176 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8178 /**cache = obj_vtable;*/
8179 mono_mb_emit_ldarg (mb, 2);
8180 mono_mb_emit_ldloc (mb, 0);
8181 mono_mb_emit_byte (mb, CEE_STIND_I);
8184 mono_mb_emit_ldarg (mb, 0);
8185 mono_mb_emit_byte (mb, CEE_RET);
8188 mono_mb_patch_branch (mb, not_an_instance_pos);
8189 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8190 mono_mb_emit_ldarg (mb, 2);
8191 /*obj_vtable | 0x1*/
8192 mono_mb_emit_ldloc (mb, 0);
8193 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8194 mono_mb_emit_byte (mb, CEE_CONV_U);
8195 mono_mb_emit_byte (mb, CEE_OR);
8198 mono_mb_emit_byte (mb, CEE_STIND_I);
8201 mono_mb_patch_branch (mb, return_null_pos);
8202 mono_mb_emit_byte (mb, CEE_LDNULL);
8203 mono_mb_emit_byte (mb, CEE_RET);
8206 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8207 res = mono_mb_create (mb, sig, 8, info);
8210 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8211 mono_free_method (res);
8212 mono_metadata_free_method_signature (sig);
8220 * mono_marshal_get_isinst:
8221 * @klass: the type of the field
8223 * This method generates a function which can be used to check if an object is
8224 * an instance of the given type, icluding the case where the object is a proxy.
8225 * The generated function has the following signature:
8226 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8229 mono_marshal_get_isinst (MonoClass *klass)
8231 static MonoMethodSignature *isint_sig = NULL;
8235 int pos_was_ok, pos_end;
8236 #ifndef DISABLE_REMOTING
8237 int pos_end2, pos_failed;
8240 MonoMethodBuilder *mb;
8242 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8243 if ((res = mono_marshal_find_in_cache (cache, klass)))
8247 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8248 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8249 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8250 isint_sig->pinvoke = 0;
8253 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8254 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8257 mb->method->save_lmf = 1;
8260 /* check if the object is a proxy that needs special cast */
8261 mono_mb_emit_ldarg (mb, 0);
8262 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8263 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8265 /* The result of MONO_CISINST can be:
8266 0) the type check succeeded
8267 1) the type check did not succeed
8268 2) a CanCastTo call is needed */
8269 #ifndef DISABLE_REMOTING
8270 mono_mb_emit_byte (mb, CEE_DUP);
8271 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8273 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8274 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8276 /* get the real proxy from the transparent proxy*/
8278 mono_mb_emit_ldarg (mb, 0);
8279 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8280 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8284 mono_mb_patch_branch (mb, pos_failed);
8285 mono_mb_emit_byte (mb, CEE_LDNULL);
8286 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8290 mono_mb_patch_branch (mb, pos_was_ok);
8291 mono_mb_emit_byte (mb, CEE_POP);
8292 mono_mb_emit_ldarg (mb, 0);
8296 mono_mb_patch_branch (mb, pos_end);
8297 mono_mb_patch_branch (mb, pos_end2);
8298 mono_mb_emit_byte (mb, CEE_RET);
8300 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8304 mono_mb_emit_byte (mb, CEE_LDNULL);
8305 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8309 mono_mb_patch_branch (mb, pos_was_ok);
8310 mono_mb_emit_ldarg (mb, 0);
8314 mono_mb_patch_branch (mb, pos_end);
8315 mono_mb_emit_byte (mb, CEE_RET);
8316 #endif /* DISABLE_REMOTING */
8317 #endif /* DISABLE_JIT */
8319 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8320 info->d.proxy.klass = klass;
8321 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8328 * mono_marshal_get_castclass:
8329 * @klass: the type of the field
8331 * This method generates a function which can be used to cast an object to
8332 * an instance of the given type, icluding the case where the object is a proxy.
8333 * The generated function has the following signature:
8334 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8335 * The wrapper info for the wrapper is a WrapperInfo structure.
8338 mono_marshal_get_castclass (MonoClass *klass)
8340 static MonoMethodSignature *castclass_sig = NULL;
8343 #ifndef DISABLE_REMOTING
8344 int pos_was_ok, pos_was_ok2;
8347 MonoMethodBuilder *mb;
8350 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8351 if ((res = mono_marshal_find_in_cache (cache, klass)))
8354 if (!castclass_sig) {
8355 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8356 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8357 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8358 castclass_sig->pinvoke = 0;
8361 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8362 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8365 mb->method->save_lmf = 1;
8368 /* check if the object is a proxy that needs special cast */
8369 mono_mb_emit_ldarg (mb, 0);
8370 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8371 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8373 /* The result of MONO_CCASTCLASS can be:
8374 0) the cast is valid
8375 1) cast of unknown proxy type
8376 or an exception if the cast is is invalid
8378 #ifndef DISABLE_REMOTING
8379 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8381 /* get the real proxy from the transparent proxy*/
8383 mono_mb_emit_ldarg (mb, 0);
8384 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8385 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8388 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8391 mono_mb_patch_branch (mb, pos_was_ok);
8392 mono_mb_patch_branch (mb, pos_was_ok2);
8394 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8395 mono_mb_emit_byte (mb, CEE_POP);
8396 #endif /* DISABLE_REMOTING */
8398 mono_mb_emit_ldarg (mb, 0);
8401 mono_mb_emit_byte (mb, CEE_RET);
8402 #endif /* DISABLE_JIT */
8404 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8406 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8414 * mono_marshal_get_struct_to_ptr:
8417 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8418 * The wrapper info for the wrapper is a WrapperInfo structure.
8421 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8423 MonoMethodBuilder *mb;
8424 static MonoMethod *stoptr = NULL;
8428 g_assert (klass != NULL);
8430 mono_marshal_load_type_info (klass);
8432 if (klass->marshal_info->str_to_ptr)
8433 return klass->marshal_info->str_to_ptr;
8436 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8439 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8442 if (klass->blittable) {
8443 mono_mb_emit_byte (mb, CEE_LDARG_1);
8444 mono_mb_emit_byte (mb, CEE_LDARG_0);
8445 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8446 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8447 mono_mb_emit_byte (mb, CEE_PREFIX1);
8448 mono_mb_emit_byte (mb, CEE_CPBLK);
8451 /* allocate local 0 (pointer) src_ptr */
8452 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8453 /* allocate local 1 (pointer) dst_ptr */
8454 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8455 /* allocate local 2 (boolean) delete_old */
8456 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8457 mono_mb_emit_byte (mb, CEE_LDARG_2);
8458 mono_mb_emit_stloc (mb, 2);
8460 /* initialize src_ptr to point to the start of object data */
8461 mono_mb_emit_byte (mb, CEE_LDARG_0);
8462 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8463 mono_mb_emit_stloc (mb, 0);
8465 /* initialize dst_ptr */
8466 mono_mb_emit_byte (mb, CEE_LDARG_1);
8467 mono_mb_emit_stloc (mb, 1);
8469 emit_struct_conv (mb, klass, FALSE);
8472 mono_mb_emit_byte (mb, CEE_RET);
8474 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8475 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8478 klass->marshal_info->str_to_ptr = res;
8483 * mono_marshal_get_ptr_to_struct:
8486 * generates IL code for PtrToStructure (IntPtr src, object structure)
8487 * The wrapper info for the wrapper is a WrapperInfo structure.
8490 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8492 MonoMethodBuilder *mb;
8493 static MonoMethodSignature *ptostr = NULL;
8497 g_assert (klass != NULL);
8499 mono_marshal_load_type_info (klass);
8501 if (klass->marshal_info->ptr_to_str)
8502 return klass->marshal_info->ptr_to_str;
8505 MonoMethodSignature *sig;
8507 /* Create the signature corresponding to
8508 static void PtrToStructure (IntPtr ptr, object structure);
8509 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8510 sig = mono_create_icall_signature ("void ptr object");
8511 sig = signature_dup (mono_defaults.corlib, sig);
8513 mono_memory_barrier ();
8517 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8520 if (klass->blittable) {
8521 mono_mb_emit_byte (mb, CEE_LDARG_1);
8522 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8523 mono_mb_emit_byte (mb, CEE_LDARG_0);
8524 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8525 mono_mb_emit_byte (mb, CEE_PREFIX1);
8526 mono_mb_emit_byte (mb, CEE_CPBLK);
8529 /* allocate local 0 (pointer) src_ptr */
8530 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8531 /* allocate local 1 (pointer) dst_ptr */
8532 mono_mb_add_local (mb, &klass->this_arg);
8534 /* initialize src_ptr to point to the start of object data */
8535 mono_mb_emit_byte (mb, CEE_LDARG_0);
8536 mono_mb_emit_stloc (mb, 0);
8538 /* initialize dst_ptr */
8539 mono_mb_emit_byte (mb, CEE_LDARG_1);
8540 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8541 mono_mb_emit_stloc (mb, 1);
8543 emit_struct_conv (mb, klass, TRUE);
8546 mono_mb_emit_byte (mb, CEE_RET);
8548 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8549 res = mono_mb_create (mb, ptostr, 0, info);
8552 klass->marshal_info->ptr_to_str = res;
8557 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8558 * This is used to avoid infinite recursion since it is hard to determine where to
8559 * replace a method with its synchronized wrapper, and where not.
8560 * The runtime should execute METHOD instead of the wrapper.
8561 * The wrapper info for the wrapper is a WrapperInfo structure.
8564 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8566 MonoMethodBuilder *mb;
8568 MonoMethodSignature *sig;
8570 MonoGenericContext *ctx = NULL;
8571 MonoGenericContainer *container = NULL;
8573 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8574 ctx = &((MonoMethodInflated*)method)->context;
8575 method = ((MonoMethodInflated*)method)->declaring;
8576 container = mono_method_get_generic_container (method);
8578 container = method->klass->generic_container;
8579 g_assert (container);
8582 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8584 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8585 mono_mb_emit_byte (mb, CEE_RET);
8587 sig = signature_dup (method->klass->image, mono_method_signature (method));
8589 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8590 info->d.synchronized_inner.method = method;
8591 res = mono_mb_create (mb, sig, 0, info);
8595 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8596 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8602 * generates IL code for the synchronized wrapper: the generated method
8603 * calls METHOD while locking 'this' or the parent type.
8606 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8608 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8609 MonoMethodSignature *sig;
8610 MonoExceptionClause *clause;
8611 MonoMethodBuilder *mb;
8614 int i, pos, this_local, ret_local = 0;
8615 MonoGenericContext *ctx = NULL;
8616 MonoMethod *orig_method = NULL;
8617 MonoGenericContainer *container = NULL;
8621 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8624 /* FIXME: Support generic methods too */
8625 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8626 orig_method = method;
8627 ctx = &((MonoMethodInflated*)method)->context;
8628 method = ((MonoMethodInflated*)method)->declaring;
8629 container = mono_method_get_generic_container (method);
8631 container = method->klass->generic_container;
8632 g_assert (container);
8639 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8640 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8644 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8645 if ((res = mono_marshal_find_in_cache (cache, method)))
8649 sig = signature_dup (method->klass->image, mono_method_signature (method));
8652 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8656 if (!MONO_TYPE_IS_VOID (sig->ret))
8657 ret_local = mono_mb_add_local (mb, sig->ret);
8660 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8661 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8663 /* This will throw the type load exception when the wrapper is compiled */
8664 mono_mb_emit_byte (mb, CEE_LDNULL);
8665 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8666 mono_mb_emit_byte (mb, CEE_POP);
8668 if (!MONO_TYPE_IS_VOID (sig->ret))
8669 mono_mb_emit_ldloc (mb, ret_local);
8670 mono_mb_emit_byte (mb, CEE_RET);
8673 res = mono_mb_create_and_cache (cache, method,
8674 mb, sig, sig->param_count + 16);
8682 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8684 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8685 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8688 mono_marshal_lock ();
8690 if (!enter_method) {
8691 MonoMethodDesc *desc;
8693 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8694 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8695 g_assert (enter_method);
8696 mono_method_desc_free (desc);
8698 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8699 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8700 g_assert (exit_method);
8701 mono_method_desc_free (desc);
8703 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8704 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8705 g_assert (gettypefromhandle_method);
8706 mono_method_desc_free (desc);
8709 mono_marshal_unlock ();
8712 /* Push this or the type object */
8713 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8714 /* We have special handling for this in the JIT */
8715 int index = mono_mb_add_data (mb, method->klass);
8716 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8717 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8718 mono_mb_emit_i4 (mb, index);
8720 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8723 mono_mb_emit_ldarg (mb, 0);
8724 mono_mb_emit_stloc (mb, this_local);
8726 /* Call Monitor::Enter() */
8727 mono_mb_emit_ldloc (mb, this_local);
8728 mono_mb_emit_managed_call (mb, enter_method, NULL);
8730 clause->try_offset = mono_mb_get_label (mb);
8732 /* Call the method */
8734 mono_mb_emit_ldarg (mb, 0);
8735 for (i = 0; i < sig->param_count; i++)
8736 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8740 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8741 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8743 mono_mb_emit_managed_call (mb, method, NULL);
8746 if (!MONO_TYPE_IS_VOID (sig->ret))
8747 mono_mb_emit_stloc (mb, ret_local);
8749 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8751 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8752 clause->handler_offset = mono_mb_get_label (mb);
8754 /* Call Monitor::Exit() */
8755 mono_mb_emit_ldloc (mb, this_local);
8756 mono_mb_emit_managed_call (mb, exit_method, NULL);
8757 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8759 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8761 mono_mb_patch_branch (mb, pos);
8762 if (!MONO_TYPE_IS_VOID (sig->ret))
8763 mono_mb_emit_ldloc (mb, ret_local);
8764 mono_mb_emit_byte (mb, CEE_RET);
8766 mono_mb_set_clauses (mb, 1, clause);
8771 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8772 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8774 res = mono_mb_create_and_cache (cache, method,
8775 mb, sig, sig->param_count + 16);
8784 * the returned method calls 'method' unboxing the this argument
8787 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8789 MonoMethodSignature *sig = mono_method_signature (method);
8791 MonoMethodBuilder *mb;
8795 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8796 if ((res = mono_marshal_find_in_cache (cache, method)))
8799 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8801 g_assert (sig->hasthis);
8804 mono_mb_emit_ldarg (mb, 0);
8805 mono_mb_emit_icon (mb, sizeof (MonoObject));
8806 mono_mb_emit_byte (mb, CEE_ADD);
8807 for (i = 0; i < sig->param_count; ++i)
8808 mono_mb_emit_ldarg (mb, i + 1);
8809 mono_mb_emit_managed_call (mb, method, NULL);
8810 mono_mb_emit_byte (mb, CEE_RET);
8813 res = mono_mb_create_and_cache (cache, method,
8814 mb, sig, sig->param_count + 16);
8817 /* code_for (res); */
8823 STELEMREF_OBJECT, /*no check at all*/
8824 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8825 STELEMREF_CLASS, /*only the klass->parents check*/
8826 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8827 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8828 STELEMREF_KIND_COUNT
8831 static const char *strelemref_wrapper_name[] = {
8832 "object", "sealed_class", "class", "interface", "complex"
8836 is_monomorphic_array (MonoClass *klass)
8838 MonoClass *element_class;
8839 if (klass->rank != 1)
8842 element_class = klass->element_class;
8843 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8847 get_virtual_stelemref_kind (MonoClass *element_class)
8849 if (element_class == mono_defaults.object_class)
8850 return STELEMREF_OBJECT;
8851 if (is_monomorphic_array (element_class))
8852 return STELEMREF_SEALED_CLASS;
8853 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8854 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8855 #ifdef COMPRESSED_INTERFACE_BITMAP
8856 return STELEMREF_COMPLEX;
8858 return STELEMREF_INTERFACE;
8860 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8861 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8862 return STELEMREF_COMPLEX;
8863 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8864 return STELEMREF_SEALED_CLASS;
8865 return STELEMREF_CLASS;
8871 load_array_element_address (MonoMethodBuilder *mb)
8873 mono_mb_emit_ldarg (mb, 0);
8874 mono_mb_emit_ldarg (mb, 1);
8875 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8879 load_array_class (MonoMethodBuilder *mb, int aklass)
8881 mono_mb_emit_ldarg (mb, 0);
8882 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8883 mono_mb_emit_byte (mb, CEE_LDIND_I);
8884 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8885 mono_mb_emit_byte (mb, CEE_LDIND_I);
8886 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8887 mono_mb_emit_byte (mb, CEE_LDIND_I);
8888 mono_mb_emit_stloc (mb, aklass);
8892 load_value_class (MonoMethodBuilder *mb, int vklass)
8894 mono_mb_emit_ldarg (mb, 2);
8895 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8896 mono_mb_emit_byte (mb, CEE_LDIND_I);
8897 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8898 mono_mb_emit_byte (mb, CEE_LDIND_I);
8899 mono_mb_emit_stloc (mb, vklass);
8905 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8907 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8908 printf ("slow vstore of %s\n", name);
8914 * The wrapper info for the wrapper is a WrapperInfo structure.
8917 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8918 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8919 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8920 * - Add a case for arrays of arrays.
8923 get_virtual_stelemref_wrapper (int kind)
8925 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8926 static MonoMethodSignature *signature;
8927 MonoMethodBuilder *mb;
8930 const char *param_names [16];
8932 int aklass, vklass, vtable, uiid;
8933 int array_slot_addr;
8936 if (cached_methods [kind])
8937 return cached_methods [kind];
8939 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8940 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
8944 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
8946 /* void this::stelemref (size_t idx, void* value) */
8947 sig->ret = &mono_defaults.void_class->byval_arg;
8948 sig->hasthis = TRUE;
8949 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8950 sig->params [1] = &mono_defaults.object_class->byval_arg;
8955 param_names [0] = "index";
8956 param_names [1] = "value";
8957 mono_mb_set_param_names (mb, param_names);
8959 /*For now simply call plain old stelemref*/
8961 case STELEMREF_OBJECT:
8962 /* ldelema (implicit bound check) */
8963 load_array_element_address (mb);
8965 mono_mb_emit_ldarg (mb, 2);
8966 mono_mb_emit_byte (mb, CEE_STIND_REF);
8967 mono_mb_emit_byte (mb, CEE_RET);
8970 case STELEMREF_COMPLEX:
8972 <ldelema (bound check)>
8975 if (!mono_object_isinst (value, aklass))
8979 *array_slot_addr = value;
8982 throw new ArrayTypeMismatchException ();
8985 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8986 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8990 /*Use this to debug/record stores that are going thru the slow path*/
8991 MonoMethodSignature *csig;
8992 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8993 csig->ret = &mono_defaults.void_class->byval_arg;
8994 csig->params [0] = &mono_defaults.object_class->byval_arg;
8995 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8996 csig->params [2] = &mono_defaults.object_class->byval_arg;
8997 mono_mb_emit_ldarg (mb, 0);
8998 mono_mb_emit_ldarg (mb, 1);
8999 mono_mb_emit_ldarg (mb, 2);
9000 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9004 /* ldelema (implicit bound check) */
9005 load_array_element_address (mb);
9006 mono_mb_emit_stloc (mb, array_slot_addr);
9008 /* if (!value) goto do_store */
9009 mono_mb_emit_ldarg (mb, 2);
9010 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9012 /* aklass = array->vtable->klass->element_class */
9013 load_array_class (mb, aklass);
9015 /*if (mono_object_isinst (value, aklass)) */
9016 mono_mb_emit_ldarg (mb, 2);
9017 mono_mb_emit_ldloc (mb, aklass);
9018 mono_mb_emit_icall (mb, mono_object_isinst);
9019 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9022 mono_mb_patch_branch (mb, b1);
9023 mono_mb_emit_ldloc (mb, array_slot_addr);
9024 mono_mb_emit_ldarg (mb, 2);
9025 mono_mb_emit_byte (mb, CEE_STIND_REF);
9026 mono_mb_emit_byte (mb, CEE_RET);
9029 mono_mb_patch_branch (mb, b2);
9031 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9034 case STELEMREF_SEALED_CLASS:
9036 <ldelema (bound check)>
9040 aklass = array->vtable->klass->element_class;
9041 vklass = value->vtable->klass;
9043 if (vklass != aklass)
9047 *array_slot_addr = value;
9050 throw new ArrayTypeMismatchException ();
9052 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9053 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9054 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9057 /* ldelema (implicit bound check) */
9058 load_array_element_address (mb);
9059 mono_mb_emit_stloc (mb, array_slot_addr);
9061 /* if (!value) goto do_store */
9062 mono_mb_emit_ldarg (mb, 2);
9063 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9065 /* aklass = array->vtable->klass->element_class */
9066 load_array_class (mb, aklass);
9068 /* vklass = value->vtable->klass */
9069 load_value_class (mb, vklass);
9071 /*if (vklass != aklass) goto do_exception; */
9072 mono_mb_emit_ldloc (mb, aklass);
9073 mono_mb_emit_ldloc (mb, vklass);
9074 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9077 mono_mb_patch_branch (mb, b1);
9078 mono_mb_emit_ldloc (mb, array_slot_addr);
9079 mono_mb_emit_ldarg (mb, 2);
9080 mono_mb_emit_byte (mb, CEE_STIND_REF);
9081 mono_mb_emit_byte (mb, CEE_RET);
9084 mono_mb_patch_branch (mb, b2);
9085 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9088 case STELEMREF_CLASS:
9091 <ldelema (bound check)>
9095 aklass = array->vtable->klass->element_class;
9096 vklass = value->vtable->klass;
9098 if (vklass->idepth < aklass->idepth)
9101 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9105 *array_slot_addr = value;
9109 throw new ArrayTypeMismatchException ();
9111 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9112 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9113 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9115 /* ldelema (implicit bound check) */
9116 load_array_element_address (mb);
9117 mono_mb_emit_stloc (mb, array_slot_addr);
9119 /* if (!value) goto do_store */
9120 mono_mb_emit_ldarg (mb, 2);
9121 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9123 /* aklass = array->vtable->klass->element_class */
9124 load_array_class (mb, aklass);
9126 /* vklass = value->vtable->klass */
9127 load_value_class (mb, vklass);
9129 /*if (mono_object_isinst (value, aklass)) */
9130 mono_mb_emit_ldarg (mb, 2);
9131 mono_mb_emit_ldloc (mb, aklass);
9132 mono_mb_emit_icall (mb, mono_object_isinst);
9133 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9135 /* if (vklass->idepth < aklass->idepth) goto failue */
9136 mono_mb_emit_ldloc (mb, vklass);
9137 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9138 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9140 mono_mb_emit_ldloc (mb, aklass);
9141 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9142 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9144 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9146 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9147 mono_mb_emit_ldloc (mb, vklass);
9148 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9149 mono_mb_emit_byte (mb, CEE_LDIND_I);
9151 mono_mb_emit_ldloc (mb, aklass);
9152 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9153 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9154 mono_mb_emit_icon (mb, 1);
9155 mono_mb_emit_byte (mb, CEE_SUB);
9156 mono_mb_emit_icon (mb, sizeof (void*));
9157 mono_mb_emit_byte (mb, CEE_MUL);
9158 mono_mb_emit_byte (mb, CEE_ADD);
9159 mono_mb_emit_byte (mb, CEE_LDIND_I);
9161 mono_mb_emit_ldloc (mb, aklass);
9162 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9165 mono_mb_patch_branch (mb, b1);
9166 mono_mb_emit_ldloc (mb, array_slot_addr);
9167 mono_mb_emit_ldarg (mb, 2);
9168 mono_mb_emit_byte (mb, CEE_STIND_REF);
9169 mono_mb_emit_byte (mb, CEE_RET);
9172 mono_mb_patch_branch (mb, b2);
9173 mono_mb_patch_branch (mb, b3);
9175 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9178 case STELEMREF_INTERFACE:
9185 klass = array->obj.vtable->klass->element_class;
9187 uiid = klass->interface_id;
9188 if (uiid > vt->max_interface_id)
9190 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9193 mono_array_setref (array, index, value);
9196 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9198 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9199 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9200 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9201 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9203 /* ldelema (implicit bound check) */
9204 load_array_element_address (mb);
9205 mono_mb_emit_stloc (mb, array_slot_addr);
9207 /* if (!value) goto do_store */
9208 mono_mb_emit_ldarg (mb, 2);
9209 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9211 /* klass = array->vtable->klass->element_class */
9212 load_array_class (mb, aklass);
9214 /* vt = value->vtable */
9215 mono_mb_emit_ldarg (mb, 2);
9216 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9217 mono_mb_emit_byte (mb, CEE_LDIND_I);
9218 mono_mb_emit_stloc (mb, vtable);
9220 /* uiid = klass->interface_id; */
9221 mono_mb_emit_ldloc (mb, aklass);
9222 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9223 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9224 mono_mb_emit_stloc (mb, uiid);
9226 /*if (uiid > vt->max_interface_id)*/
9227 mono_mb_emit_ldloc (mb, uiid);
9228 mono_mb_emit_ldloc (mb, vtable);
9229 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9230 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9231 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9233 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9235 /*vt->interface_bitmap*/
9236 mono_mb_emit_ldloc (mb, vtable);
9237 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9238 mono_mb_emit_byte (mb, CEE_LDIND_I);
9241 mono_mb_emit_ldloc (mb, uiid);
9242 mono_mb_emit_icon (mb, 3);
9243 mono_mb_emit_byte (mb, CEE_SHR_UN);
9245 /*vt->interface_bitmap [(uiid) >> 3]*/
9246 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9247 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9249 /*(1 << ((uiid)&7)))*/
9250 mono_mb_emit_icon (mb, 1);
9251 mono_mb_emit_ldloc (mb, uiid);
9252 mono_mb_emit_icon (mb, 7);
9253 mono_mb_emit_byte (mb, CEE_AND);
9254 mono_mb_emit_byte (mb, CEE_SHL);
9256 /*bitwise and the whole thing*/
9257 mono_mb_emit_byte (mb, CEE_AND);
9258 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9261 mono_mb_patch_branch (mb, b1);
9262 mono_mb_emit_ldloc (mb, array_slot_addr);
9263 mono_mb_emit_ldarg (mb, 2);
9264 mono_mb_emit_byte (mb, CEE_STIND_REF);
9265 mono_mb_emit_byte (mb, CEE_RET);
9268 mono_mb_patch_branch (mb, b2);
9269 mono_mb_patch_branch (mb, b3);
9270 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9274 mono_mb_emit_ldarg (mb, 0);
9275 mono_mb_emit_ldarg (mb, 1);
9276 mono_mb_emit_ldarg (mb, 2);
9277 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9278 mono_mb_emit_byte (mb, CEE_RET);
9281 #endif /* DISABLE_JIT */
9282 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9283 info->d.virtual_stelemref.kind = kind;
9284 res = mono_mb_create (mb, signature, 4, info);
9285 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9287 mono_marshal_lock ();
9288 if (!cached_methods [kind]) {
9289 cached_methods [kind] = res;
9290 mono_marshal_unlock ();
9292 mono_marshal_unlock ();
9293 mono_free_method (res);
9297 return cached_methods [kind];
9301 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9305 g_assert (array_class->rank == 1);
9306 kind = get_virtual_stelemref_kind (array_class->element_class);
9308 return get_virtual_stelemref_wrapper (kind);
9312 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9317 *nwrappers = STELEMREF_KIND_COUNT;
9318 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9319 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9320 res [i] = get_virtual_stelemref_wrapper (i);
9325 * The wrapper info for the wrapper is a WrapperInfo structure.
9328 mono_marshal_get_stelemref (void)
9330 static MonoMethod* ret = NULL;
9331 MonoMethodSignature *sig;
9332 MonoMethodBuilder *mb;
9335 guint32 b1, b2, b3, b4;
9338 int array_slot_addr;
9343 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9346 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9348 /* void stelemref (void* array, int idx, void* value) */
9349 sig->ret = &mono_defaults.void_class->byval_arg;
9350 sig->params [0] = &mono_defaults.object_class->byval_arg;
9351 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9352 sig->params [2] = &mono_defaults.object_class->byval_arg;
9355 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9356 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9357 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9361 <ldelema (bound check)>
9365 aklass = array->vtable->klass->element_class;
9366 vklass = value->vtable->klass;
9368 if (vklass->idepth < aklass->idepth)
9371 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9375 *array_slot_addr = value;
9379 if (mono_object_isinst (value, aklass))
9382 throw new ArrayTypeMismatchException ();
9385 /* ldelema (implicit bound check) */
9386 mono_mb_emit_ldarg (mb, 0);
9387 mono_mb_emit_ldarg (mb, 1);
9388 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9389 mono_mb_emit_stloc (mb, array_slot_addr);
9391 /* if (!value) goto do_store */
9392 mono_mb_emit_ldarg (mb, 2);
9393 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9395 /* aklass = array->vtable->klass->element_class */
9396 mono_mb_emit_ldarg (mb, 0);
9397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9398 mono_mb_emit_byte (mb, CEE_LDIND_I);
9399 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9400 mono_mb_emit_byte (mb, CEE_LDIND_I);
9401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9402 mono_mb_emit_byte (mb, CEE_LDIND_I);
9403 mono_mb_emit_stloc (mb, aklass);
9405 /* vklass = value->vtable->klass */
9406 mono_mb_emit_ldarg (mb, 2);
9407 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9408 mono_mb_emit_byte (mb, CEE_LDIND_I);
9409 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9410 mono_mb_emit_byte (mb, CEE_LDIND_I);
9411 mono_mb_emit_stloc (mb, vklass);
9413 /* if (vklass->idepth < aklass->idepth) goto failue */
9414 mono_mb_emit_ldloc (mb, vklass);
9415 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9416 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9418 mono_mb_emit_ldloc (mb, aklass);
9419 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9420 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9422 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9424 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9425 mono_mb_emit_ldloc (mb, vklass);
9426 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9427 mono_mb_emit_byte (mb, CEE_LDIND_I);
9429 mono_mb_emit_ldloc (mb, aklass);
9430 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9431 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9432 mono_mb_emit_icon (mb, 1);
9433 mono_mb_emit_byte (mb, CEE_SUB);
9434 mono_mb_emit_icon (mb, sizeof (void*));
9435 mono_mb_emit_byte (mb, CEE_MUL);
9436 mono_mb_emit_byte (mb, CEE_ADD);
9437 mono_mb_emit_byte (mb, CEE_LDIND_I);
9439 mono_mb_emit_ldloc (mb, aklass);
9441 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9443 copy_pos = mono_mb_get_label (mb);
9445 mono_mb_patch_branch (mb, b1);
9446 mono_mb_emit_ldloc (mb, array_slot_addr);
9447 mono_mb_emit_ldarg (mb, 2);
9448 mono_mb_emit_byte (mb, CEE_STIND_REF);
9450 mono_mb_emit_byte (mb, CEE_RET);
9453 mono_mb_patch_branch (mb, b2);
9454 mono_mb_patch_branch (mb, b3);
9456 mono_mb_emit_ldarg (mb, 2);
9457 mono_mb_emit_ldloc (mb, aklass);
9458 mono_mb_emit_icall (mb, mono_object_isinst);
9460 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9461 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9462 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9464 mono_mb_emit_byte (mb, CEE_RET);
9466 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9467 ret = mono_mb_create (mb, sig, 4, info);
9474 * mono_marshal_get_gsharedvt_in_wrapper:
9476 * This wrapper handles calls from normal code to gsharedvt code.
9478 * The wrapper info for the wrapper is a WrapperInfo structure.
9481 mono_marshal_get_gsharedvt_in_wrapper (void)
9483 static MonoMethod* ret = NULL;
9484 MonoMethodSignature *sig;
9485 MonoMethodBuilder *mb;
9491 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9493 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9494 sig->ret = &mono_defaults.void_class->byval_arg;
9498 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9500 mono_mb_emit_byte (mb, CEE_RET);
9502 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9503 ret = mono_mb_create (mb, sig, 4, info);
9510 * mono_marshal_get_gsharedvt_out_wrapper:
9512 * This wrapper handles calls from gsharedvt code to normal code.
9514 * The wrapper info for the wrapper is a WrapperInfo structure.
9517 mono_marshal_get_gsharedvt_out_wrapper (void)
9519 static MonoMethod* ret = NULL;
9520 MonoMethodSignature *sig;
9521 MonoMethodBuilder *mb;
9527 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9529 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9530 sig->ret = &mono_defaults.void_class->byval_arg;
9534 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9536 mono_mb_emit_byte (mb, CEE_RET);
9538 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9539 ret = mono_mb_create (mb, sig, 4, info);
9551 /* LOCKING: vars accessed under the marshal lock */
9552 static ArrayElemAddr *elem_addr_cache = NULL;
9553 static int elem_addr_cache_size = 0;
9554 static int elem_addr_cache_next = 0;
9557 * mono_marshal_get_array_address:
9558 * @rank: rank of the array type
9559 * @elem_size: size in bytes of an element of an array.
9561 * Returns a MonoMethod that implements the code to get the address
9562 * of an element in a multi-dimenasional array of @rank dimensions.
9563 * The returned method takes an array as the first argument and then
9564 * @rank indexes for the @rank dimensions.
9565 * If ELEM_SIZE is 0, read the array size from the array object.
9568 mono_marshal_get_array_address (int rank, int elem_size)
9571 MonoMethodBuilder *mb;
9572 MonoMethodSignature *sig;
9575 int i, bounds, ind, realidx;
9576 int branch_pos, *branch_positions;
9580 mono_marshal_lock ();
9581 for (i = 0; i < elem_addr_cache_next; ++i) {
9582 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9583 ret = elem_addr_cache [i].method;
9587 mono_marshal_unlock ();
9591 branch_positions = g_new0 (int, rank);
9593 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9595 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9596 sig->ret = &mono_defaults.int_class->byval_arg;
9597 sig->params [0] = &mono_defaults.object_class->byval_arg;
9598 for (i = 0; i < rank; ++i) {
9599 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9602 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9603 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9607 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9608 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9609 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9611 /* bounds = array->bounds; */
9612 mono_mb_emit_ldarg (mb, 0);
9613 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9614 mono_mb_emit_byte (mb, CEE_LDIND_I);
9615 mono_mb_emit_stloc (mb, bounds);
9617 /* ind is the overall element index, realidx is the partial index in a single dimension */
9618 /* ind = idx0 - bounds [0].lower_bound */
9619 mono_mb_emit_ldarg (mb, 1);
9620 mono_mb_emit_ldloc (mb, bounds);
9621 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9622 mono_mb_emit_byte (mb, CEE_ADD);
9623 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9624 mono_mb_emit_byte (mb, CEE_SUB);
9625 mono_mb_emit_stloc (mb, ind);
9626 /* if (ind >= bounds [0].length) goto exeception; */
9627 mono_mb_emit_ldloc (mb, ind);
9628 mono_mb_emit_ldloc (mb, bounds);
9629 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9630 mono_mb_emit_byte (mb, CEE_ADD);
9631 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9632 /* note that we use unsigned comparison */
9633 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9635 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9636 * We could also decide to ignore the passed elem_size and get it
9637 * from the array object, to reduce the number of methods we generate:
9638 * the additional cost is 3 memory loads and a non-immediate mul.
9640 for (i = 1; i < rank; ++i) {
9641 /* realidx = idxi - bounds [i].lower_bound */
9642 mono_mb_emit_ldarg (mb, 1 + i);
9643 mono_mb_emit_ldloc (mb, bounds);
9644 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9645 mono_mb_emit_byte (mb, CEE_ADD);
9646 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9647 mono_mb_emit_byte (mb, CEE_SUB);
9648 mono_mb_emit_stloc (mb, realidx);
9649 /* if (realidx >= bounds [i].length) goto exeception; */
9650 mono_mb_emit_ldloc (mb, realidx);
9651 mono_mb_emit_ldloc (mb, bounds);
9652 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9653 mono_mb_emit_byte (mb, CEE_ADD);
9654 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9655 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9656 /* ind = ind * bounds [i].length + realidx */
9657 mono_mb_emit_ldloc (mb, ind);
9658 mono_mb_emit_ldloc (mb, bounds);
9659 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9660 mono_mb_emit_byte (mb, CEE_ADD);
9661 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9662 mono_mb_emit_byte (mb, CEE_MUL);
9663 mono_mb_emit_ldloc (mb, realidx);
9664 mono_mb_emit_byte (mb, CEE_ADD);
9665 mono_mb_emit_stloc (mb, ind);
9668 /* return array->vector + ind * element_size */
9669 mono_mb_emit_ldarg (mb, 0);
9670 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9671 mono_mb_emit_ldloc (mb, ind);
9673 mono_mb_emit_icon (mb, elem_size);
9675 /* Load arr->vtable->klass->sizes.element_class */
9676 mono_mb_emit_ldarg (mb, 0);
9677 mono_mb_emit_byte (mb, CEE_CONV_I);
9678 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9679 mono_mb_emit_byte (mb, CEE_ADD);
9680 mono_mb_emit_byte (mb, CEE_LDIND_I);
9681 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9682 mono_mb_emit_byte (mb, CEE_ADD);
9683 mono_mb_emit_byte (mb, CEE_LDIND_I);
9684 /* sizes is an union, so this reads sizes.element_size */
9685 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9686 mono_mb_emit_byte (mb, CEE_ADD);
9687 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9689 mono_mb_emit_byte (mb, CEE_MUL);
9690 mono_mb_emit_byte (mb, CEE_ADD);
9691 mono_mb_emit_byte (mb, CEE_RET);
9693 /* patch the branches to get here and throw */
9694 for (i = 1; i < rank; ++i) {
9695 mono_mb_patch_branch (mb, branch_positions [i]);
9697 mono_mb_patch_branch (mb, branch_pos);
9698 /* throw exception */
9699 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9701 g_free (branch_positions);
9702 #endif /* DISABLE_JIT */
9704 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9705 info->d.element_addr.rank = rank;
9706 info->d.element_addr.elem_size = elem_size;
9707 ret = mono_mb_create (mb, sig, 4, info);
9710 /* cache the result */
9712 mono_marshal_lock ();
9713 for (i = 0; i < elem_addr_cache_next; ++i) {
9714 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9715 /* FIXME: free ret */
9716 ret = elem_addr_cache [i].method;
9722 if (elem_addr_cache_next >= elem_addr_cache_size) {
9723 int new_size = elem_addr_cache_size + 4;
9724 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9725 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9726 g_free (elem_addr_cache);
9727 elem_addr_cache = new_array;
9728 elem_addr_cache_size = new_size;
9730 elem_addr_cache [elem_addr_cache_next].rank = rank;
9731 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9732 elem_addr_cache [elem_addr_cache_next].method = ret;
9733 elem_addr_cache_next ++;
9735 mono_marshal_unlock ();
9740 * mono_marshal_get_array_accessor_wrapper:
9742 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9745 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9747 MonoMethodSignature *sig;
9748 MonoMethodBuilder *mb;
9752 MonoGenericContext *ctx = NULL;
9753 MonoMethod *orig_method = NULL;
9754 MonoGenericContainer *container = NULL;
9758 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9759 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9760 * FIXME: Use generic methods.
9767 g_assert_not_reached ();
9769 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9770 if ((res = mono_marshal_find_in_cache (cache, method)))
9774 sig = signature_dup (method->klass->image, mono_method_signature (method));
9777 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9780 /* Call the method */
9782 mono_mb_emit_ldarg (mb, 0);
9783 for (i = 0; i < sig->param_count; i++)
9784 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9788 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9789 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9791 mono_mb_emit_managed_call (mb, method, NULL);
9793 mono_mb_emit_byte (mb, CEE_RET);
9798 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9799 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9801 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9802 info->d.array_accessor.method = method;
9804 res = mono_mb_create_and_cache_full (cache, method,
9805 mb, sig, sig->param_count + 16,
9814 mono_marshal_alloc (gulong size)
9819 res = CoTaskMemAlloc (size);
9821 res = g_try_malloc ((gulong)size);
9823 mono_gc_out_of_memory ((gulong)size);
9829 mono_marshal_free (gpointer ptr)
9832 CoTaskMemFree (ptr);
9839 mono_marshal_free_array (gpointer *ptr, int size)
9846 for (i = 0; i < size; i++)
9852 mono_marshal_string_to_utf16 (MonoString *s)
9854 return s ? mono_string_chars (s) : NULL;
9858 mono_marshal_string_to_utf16_copy (MonoString *s)
9863 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9864 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9865 res [mono_string_length (s)] = 0;
9871 * mono_marshal_set_last_error:
9873 * This function is invoked to set the last error value from a P/Invoke call
9874 * which has SetLastError set.
9877 mono_marshal_set_last_error (void)
9880 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9882 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9887 mono_marshal_set_last_error_windows (int error)
9890 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9895 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9896 gpointer dest, gint32 length)
9901 MONO_CHECK_ARG_NULL (src,);
9902 MONO_CHECK_ARG_NULL (dest,);
9904 if (src->obj.vtable->klass->rank != 1) {
9905 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9908 if (start_index < 0) {
9909 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9913 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9916 if (start_index + length > mono_array_length (src)) {
9917 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9921 element_size = mono_array_element_size (src->obj.vtable->klass);
9923 /* no references should be involved */
9924 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9926 memcpy (dest, source_addr, length * element_size);
9930 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9931 MonoArray *dest, gint32 length)
9936 MONO_CHECK_ARG_NULL (src,);
9937 MONO_CHECK_ARG_NULL (dest,);
9939 if (dest->obj.vtable->klass->rank != 1) {
9940 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9943 if (start_index < 0) {
9944 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9948 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9951 if (start_index + length > mono_array_length (dest)) {
9952 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9955 element_size = mono_array_element_size (dest->obj.vtable->klass);
9957 /* no references should be involved */
9958 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
9960 memcpy (dest_addr, src, length * element_size);
9964 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9969 return mono_string_new (mono_domain_get (), ptr);
9973 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9976 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
9979 return mono_string_new_len (mono_domain_get (), ptr, len);
9984 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9986 MonoDomain *domain = mono_domain_get ();
9996 return mono_string_new_utf16 (domain, ptr, len);
10000 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10002 MonoDomain *domain = mono_domain_get ();
10005 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10008 return mono_string_new_utf16 (domain, ptr, len);
10013 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10015 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10019 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10025 MONO_CHECK_ARG_NULL (rtype, 0);
10027 type = rtype->type;
10028 klass = mono_class_from_mono_type (type);
10029 if (!mono_class_init (klass)) {
10030 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10034 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10036 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10037 return sizeof (gpointer);
10038 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10040 MonoException *exc;
10042 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10043 exc = mono_get_exception_argument ("t", msg);
10045 mono_set_pending_exception (exc);
10049 return mono_class_native_size (klass, NULL);
10053 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10055 MonoMethod *method;
10058 MONO_CHECK_ARG_NULL (obj,);
10059 MONO_CHECK_ARG_NULL (dst,);
10061 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10065 pa [2] = &delete_old;
10067 mono_runtime_invoke (method, NULL, pa, NULL);
10071 ptr_to_structure (gpointer src, MonoObject *dst)
10073 MonoMethod *method;
10076 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10081 mono_runtime_invoke (method, NULL, pa, NULL);
10085 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10089 MONO_CHECK_ARG_NULL (src,);
10090 MONO_CHECK_ARG_NULL (dst,);
10092 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10094 if (t->type == MONO_TYPE_VALUETYPE) {
10095 MonoException *exc;
10098 tmp = g_strdup_printf ("Destination is a boxed value type.");
10099 exc = mono_get_exception_argument ("dst", tmp);
10102 mono_set_pending_exception (exc);
10106 ptr_to_structure (src, dst);
10110 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10113 MonoDomain *domain = mono_domain_get ();
10118 MONO_CHECK_ARG_NULL (type, NULL);
10120 klass = mono_class_from_mono_type (type->type);
10121 if (!mono_class_init (klass)) {
10122 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10126 res = mono_object_new (domain, klass);
10128 ptr_to_structure (src, res);
10134 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10136 MonoMarshalType *info;
10139 int match_index = -1;
10141 MONO_CHECK_ARG_NULL (type, 0);
10142 MONO_CHECK_ARG_NULL (field_name, 0);
10144 fname = mono_string_to_utf8 (field_name);
10145 klass = mono_class_from_mono_type (type->type);
10146 if (!mono_class_init (klass)) {
10147 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10151 while (klass && match_index == -1) {
10152 MonoClassField* field;
10154 gpointer iter = NULL;
10155 while ((field = mono_class_get_fields (klass, &iter))) {
10156 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10158 if (!strcmp (fname, mono_field_get_name (field))) {
10165 if (match_index == -1)
10166 klass = klass->parent;
10171 if(match_index == -1) {
10172 MonoException* exc;
10175 /* Get back original class instance */
10176 klass = mono_class_from_mono_type (type->type);
10178 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10179 exc = mono_get_exception_argument ("fieldName", tmp);
10182 mono_set_pending_exception ((MonoException*)exc);
10186 info = mono_marshal_load_type_info (klass);
10187 return info->fields [match_index].offset;
10191 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10196 tres = mono_string_to_utf8 (string);
10200 len = strlen (tres) + 1;
10201 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10202 memcpy (ret, tres, len);
10207 return mono_string_to_utf8 (string);
10212 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10214 if (string == NULL)
10217 #ifdef TARGET_WIN32
10218 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10219 ((mono_string_length (string) + 1) * 2);
10221 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10223 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10224 res [mono_string_length (string)] = 0;
10230 mono_struct_delete_old (MonoClass *klass, char *ptr)
10232 MonoMarshalType *info;
10235 info = mono_marshal_load_type_info (klass);
10237 for (i = 0; i < info->num_fields; i++) {
10238 MonoMarshalConv conv;
10239 MonoType *ftype = info->fields [i].field->type;
10242 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10245 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10246 klass->unicode, &conv);
10248 cpos = ptr + info->fields [i].offset;
10251 case MONO_MARSHAL_CONV_NONE:
10252 if (MONO_TYPE_ISSTRUCT (ftype)) {
10253 mono_struct_delete_old (ftype->data.klass, cpos);
10257 case MONO_MARSHAL_CONV_STR_LPWSTR:
10258 /* We assume this field points inside a MonoString */
10260 case MONO_MARSHAL_CONV_STR_LPTSTR:
10261 #ifdef TARGET_WIN32
10262 /* We assume this field points inside a MonoString
10266 case MONO_MARSHAL_CONV_STR_LPSTR:
10267 case MONO_MARSHAL_CONV_STR_BSTR:
10268 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10269 case MONO_MARSHAL_CONV_STR_TBSTR:
10270 mono_marshal_free (*(gpointer *)cpos);
10280 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10284 MONO_CHECK_ARG_NULL (src,);
10285 MONO_CHECK_ARG_NULL (type,);
10287 klass = mono_class_from_mono_type (type->type);
10288 if (!mono_class_init (klass)) {
10289 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10293 mono_struct_delete_old (klass, (char *)src);
10297 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10301 if ((gulong)size == 0)
10302 /* This returns a valid pointer for size 0 on MS.NET */
10306 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10308 res = g_try_malloc ((gulong)size);
10311 mono_gc_out_of_memory ((gulong)size);
10317 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10322 mono_gc_out_of_memory ((gulong)size);
10327 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10329 res = g_try_realloc (ptr, (gulong)size);
10332 mono_gc_out_of_memory ((gulong)size);
10338 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10348 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10353 res = CoTaskMemAlloc (size);
10355 if ((gulong)size == 0)
10356 /* This returns a valid pointer for size 0 on MS.NET */
10359 res = g_try_malloc ((gulong)size);
10362 mono_gc_out_of_memory ((gulong)size);
10367 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10370 CoTaskMemFree (ptr);
10377 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10382 res = CoTaskMemRealloc (ptr, size);
10384 res = g_try_realloc (ptr, (gulong)size);
10387 mono_gc_out_of_memory ((gulong)size);
10392 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10394 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10398 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10400 MonoClass *klass = mono_type_get_class (type->type);
10401 if (!mono_class_init (klass)) {
10402 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10406 return mono_ftnptr_to_delegate (klass, ftn);
10410 * mono_marshal_is_loading_type_info:
10412 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10416 mono_marshal_is_loading_type_info (MonoClass *klass)
10418 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10420 return g_slist_find (loads_list, klass) != NULL;
10424 * mono_marshal_load_type_info:
10426 * Initialize klass->marshal_info using information from metadata. This function can
10427 * recursively call itself, and the caller is responsible to avoid that by calling
10428 * mono_marshal_is_loading_type_info () beforehand.
10430 * LOCKING: Acquires the loader lock.
10433 mono_marshal_load_type_info (MonoClass* klass)
10436 guint32 native_size = 0, min_align = 1, packing;
10437 MonoMarshalType *info;
10438 MonoClassField* field;
10441 GSList *loads_list;
10443 g_assert (klass != NULL);
10445 if (klass->marshal_info)
10446 return klass->marshal_info;
10448 if (!klass->inited)
10449 mono_class_init (klass);
10451 if (klass->marshal_info)
10452 return klass->marshal_info;
10455 * This function can recursively call itself, so we keep the list of classes which are
10456 * under initialization in a TLS list.
10458 g_assert (!mono_marshal_is_loading_type_info (klass));
10459 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10460 loads_list = g_slist_prepend (loads_list, klass);
10461 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10464 while ((field = mono_class_get_fields (klass, &iter))) {
10465 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10467 if (mono_field_is_deleted (field))
10472 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10474 /* The mempool is protected by the loader lock */
10475 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10476 info->num_fields = count;
10478 /* Try to find a size for this type in metadata */
10479 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10481 if (klass->parent) {
10482 int parent_size = mono_class_native_size (klass->parent, NULL);
10484 /* Add parent size to real size */
10485 native_size += parent_size;
10486 info->native_size = parent_size;
10489 packing = klass->packing_size ? klass->packing_size : 8;
10492 while ((field = mono_class_get_fields (klass, &iter))) {
10496 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10499 if (mono_field_is_deleted (field))
10501 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10502 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10503 NULL, NULL, &info->fields [j].mspec);
10505 info->fields [j].field = field;
10507 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10508 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10509 /* This field is a hack inserted by MCS to empty structures */
10514 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10515 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10516 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10517 &align, TRUE, klass->unicode);
10518 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10519 min_align = MAX (align, min_align);
10520 info->fields [j].offset = info->native_size;
10521 info->fields [j].offset += align - 1;
10522 info->fields [j].offset &= ~(align - 1);
10523 info->native_size = info->fields [j].offset + size;
10525 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10526 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10527 &align, TRUE, klass->unicode);
10528 min_align = MAX (align, min_align);
10529 info->fields [j].offset = field->offset - sizeof (MonoObject);
10530 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10536 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10537 info->native_size = MAX (native_size, info->native_size);
10539 * If the provided Size is equal or larger than the calculated size, and there
10540 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10542 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10543 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10546 min_align = MIN (min_align, packing);
10550 if (info->native_size & (min_align - 1)) {
10551 info->native_size += min_align - 1;
10552 info->native_size &= ~(min_align - 1);
10555 info->min_align = min_align;
10557 /* Update the class's blittable info, if the layouts don't match */
10558 if (info->native_size != mono_class_value_size (klass, NULL))
10559 klass->blittable = FALSE;
10561 /* If this is an array type, ensure that we have element info */
10562 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10563 mono_marshal_load_type_info (klass->element_class);
10566 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10567 loads_list = g_slist_remove (loads_list, klass);
10568 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10570 mono_marshal_lock ();
10571 if (!klass->marshal_info) {
10572 /*We do double-checking locking on marshal_info */
10573 mono_memory_barrier ();
10574 klass->marshal_info = info;
10576 mono_marshal_unlock ();
10578 return klass->marshal_info;
10582 * mono_class_native_size:
10585 * Returns: the native size of an object instance (when marshaled
10586 * to unmanaged code)
10589 mono_class_native_size (MonoClass *klass, guint32 *align)
10591 if (!klass->marshal_info) {
10592 if (mono_marshal_is_loading_type_info (klass)) {
10597 mono_marshal_load_type_info (klass);
10602 *align = klass->marshal_info->min_align;
10604 return klass->marshal_info->native_size;
10608 * mono_type_native_stack_size:
10609 * @t: the type to return the size it uses on the stack
10611 * Returns: the number of bytes required to hold an instance of this
10612 * type on the native stack
10615 mono_type_native_stack_size (MonoType *t, guint32 *align)
10619 g_assert (t != NULL);
10625 *align = sizeof (gpointer);
10626 return sizeof (gpointer);
10630 case MONO_TYPE_BOOLEAN:
10631 case MONO_TYPE_CHAR:
10642 case MONO_TYPE_STRING:
10643 case MONO_TYPE_OBJECT:
10644 case MONO_TYPE_CLASS:
10645 case MONO_TYPE_SZARRAY:
10646 case MONO_TYPE_PTR:
10647 case MONO_TYPE_FNPTR:
10648 case MONO_TYPE_ARRAY:
10649 *align = sizeof (gpointer);
10650 return sizeof (gpointer);
10655 *align = MONO_ABI_ALIGNOF (double);
10659 *align = MONO_ABI_ALIGNOF (gint64);
10661 case MONO_TYPE_GENERICINST:
10662 if (!mono_type_generic_inst_is_valuetype (t)) {
10663 *align = sizeof (gpointer);
10664 return sizeof (gpointer);
10667 case MONO_TYPE_TYPEDBYREF:
10668 case MONO_TYPE_VALUETYPE: {
10670 MonoClass *klass = mono_class_from_mono_type (t);
10672 if (klass->enumtype)
10673 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10675 size = mono_class_native_size (klass, align);
10676 *align = *align + 3;
10686 g_error ("type 0x%02x unknown", t->type);
10692 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10693 gboolean as_field, gboolean unicode)
10695 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10698 switch (native_type) {
10699 case MONO_NATIVE_BOOLEAN:
10702 case MONO_NATIVE_I1:
10703 case MONO_NATIVE_U1:
10706 case MONO_NATIVE_I2:
10707 case MONO_NATIVE_U2:
10708 case MONO_NATIVE_VARIANTBOOL:
10711 case MONO_NATIVE_I4:
10712 case MONO_NATIVE_U4:
10713 case MONO_NATIVE_ERROR:
10716 case MONO_NATIVE_I8:
10717 case MONO_NATIVE_U8:
10718 *align = MONO_ABI_ALIGNOF (gint64);
10720 case MONO_NATIVE_R4:
10723 case MONO_NATIVE_R8:
10724 *align = MONO_ABI_ALIGNOF (double);
10726 case MONO_NATIVE_INT:
10727 case MONO_NATIVE_UINT:
10728 case MONO_NATIVE_LPSTR:
10729 case MONO_NATIVE_LPWSTR:
10730 case MONO_NATIVE_LPTSTR:
10731 case MONO_NATIVE_BSTR:
10732 case MONO_NATIVE_ANSIBSTR:
10733 case MONO_NATIVE_TBSTR:
10734 case MONO_NATIVE_LPARRAY:
10735 case MONO_NATIVE_SAFEARRAY:
10736 case MONO_NATIVE_IUNKNOWN:
10737 case MONO_NATIVE_IDISPATCH:
10738 case MONO_NATIVE_INTERFACE:
10739 case MONO_NATIVE_ASANY:
10740 case MONO_NATIVE_FUNC:
10741 case MONO_NATIVE_LPSTRUCT:
10742 *align = MONO_ABI_ALIGNOF (gpointer);
10743 return sizeof (gpointer);
10744 case MONO_NATIVE_STRUCT:
10745 klass = mono_class_from_mono_type (type);
10746 if (klass == mono_defaults.object_class &&
10747 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10751 return mono_class_native_size (klass, align);
10752 case MONO_NATIVE_BYVALTSTR: {
10753 int esize = unicode ? 2: 1;
10756 return mspec->data.array_data.num_elem * esize;
10758 case MONO_NATIVE_BYVALARRAY: {
10759 // FIXME: Have to consider ArraySubType
10761 klass = mono_class_from_mono_type (type);
10762 if (klass->element_class == mono_defaults.char_class) {
10763 esize = unicode ? 2 : 1;
10766 esize = mono_class_native_size (klass->element_class, align);
10769 return mspec->data.array_data.num_elem * esize;
10771 case MONO_NATIVE_CUSTOM:
10772 *align = sizeof (gpointer);
10773 return sizeof (gpointer);
10775 case MONO_NATIVE_CURRENCY:
10776 case MONO_NATIVE_VBBYREFSTR:
10778 g_error ("native type %02x not implemented", native_type);
10781 g_assert_not_reached ();
10786 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10794 t = &o->vtable->klass->byval_arg;
10798 case MONO_TYPE_PTR:
10801 case MONO_TYPE_BOOLEAN:
10804 case MONO_TYPE_CHAR:
10809 return mono_object_unbox (o);
10811 case MONO_TYPE_STRING:
10812 switch (string_encoding) {
10813 case MONO_NATIVE_LPWSTR:
10814 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10816 case MONO_NATIVE_LPSTR:
10817 return mono_string_to_lpstr ((MonoString*)o);
10820 g_warning ("marshaling conversion %d not implemented", string_encoding);
10821 g_assert_not_reached ();
10824 case MONO_TYPE_CLASS:
10825 case MONO_TYPE_VALUETYPE: {
10826 MonoMethod *method;
10829 MonoBoolean delete_old = FALSE;
10831 klass = t->data.klass;
10833 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10836 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10837 klass->blittable || klass->enumtype))
10838 return mono_object_unbox (o);
10840 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10842 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10843 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10847 pa [2] = &delete_old;
10849 mono_runtime_invoke (method, NULL, pa, NULL);
10857 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10862 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10870 t = &o->vtable->klass->byval_arg;
10872 case MONO_TYPE_STRING:
10873 switch (string_encoding) {
10874 case MONO_NATIVE_LPWSTR:
10875 case MONO_NATIVE_LPSTR:
10876 mono_marshal_free (ptr);
10879 g_warning ("marshaling conversion %d not implemented", string_encoding);
10880 g_assert_not_reached ();
10883 case MONO_TYPE_CLASS:
10884 case MONO_TYPE_VALUETYPE: {
10885 klass = t->data.klass;
10887 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10888 klass->blittable || klass->enumtype))
10891 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10892 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10898 mono_runtime_invoke (method, NULL, pa, NULL);
10901 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10902 mono_struct_delete_old (klass, ptr);
10905 mono_marshal_free (ptr);
10914 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10916 MonoMethodSignature *sig, *csig;
10917 MonoMethodBuilder *mb;
10922 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10923 mb->method->slot = -1;
10925 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10926 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10928 sig = mono_method_signature (method);
10929 csig = signature_dup (method->klass->image, sig);
10930 csig->generic_param_count = 0;
10932 #ifndef DISABLE_JIT
10933 mono_mb_emit_ldarg (mb, 0);
10934 for (i = 0; i < csig->param_count; i++)
10935 mono_mb_emit_ldarg (mb, i + 1);
10936 mono_mb_emit_managed_call (mb, method, NULL);
10937 mono_mb_emit_byte (mb, CEE_RET);
10939 /* We can corlib internal methods */
10940 mb->skip_visibility = TRUE;
10942 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
10943 info->d.generic_array_helper.method = method;
10944 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
10952 * The mono_win32_compat_* functions are implementations of inline
10953 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10954 * although not exported by kernel32.
10956 * We map the appropiate kernel32 entries to these functions using
10957 * dllmaps declared in the global etc/mono/config.
10961 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10963 if (!dest || !source)
10966 memcpy (dest, source, length);
10970 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10972 memset (dest, fill, length);
10976 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10978 if (!dest || !source)
10981 memmove (dest, source, length);
10985 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10987 memset (dest, 0, length);
10991 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10996 for (i = 0; i < len; ++i)
11000 g_assert (i < len);
11003 while (byte && !(byte & 1))
11005 g_assert (byte == 1);
11008 *bitmask = buf [i];
11012 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11014 MonoMethodBuilder *mb;
11015 MonoMethodSignature *sig, *csig;
11016 MonoExceptionClause *clause;
11021 int i, param_count, sig_size, pos_leave;
11025 klass = method->klass;
11026 image = method->klass->image;
11027 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11029 if ((res = mono_marshal_find_in_cache (cache, method)))
11032 sig = mono_method_signature (method);
11033 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11035 /* add "this" and exception param */
11036 param_count = sig->param_count + sig->hasthis + 1;
11038 /* dup & extend signature */
11039 csig = mono_metadata_signature_alloc (image, param_count);
11040 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11041 memcpy (csig, sig, sig_size);
11042 csig->param_count = param_count;
11045 csig->call_convention = MONO_CALL_DEFAULT;
11047 if (sig->hasthis) {
11049 csig->params [0] = &klass->byval_arg;
11050 /* move params up by one */
11051 for (i = 0; i < sig->param_count; i++)
11052 csig->params [i + 1] = sig->params [i];
11055 /* setup exception param as byref+[out] */
11056 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11057 &mono_defaults.exception_class->byval_arg);
11058 csig->params [param_count - 1]->byref = 1;
11059 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11061 /* convert struct return to object */
11062 if (MONO_TYPE_ISSTRUCT (sig->ret))
11063 csig->ret = &mono_defaults.object_class->byval_arg;
11065 #ifndef DISABLE_JIT
11066 /* local 0 (temp for exception object) */
11067 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11069 /* local 1 (temp for result) */
11070 if (!MONO_TYPE_IS_VOID (sig->ret))
11071 mono_mb_add_local (mb, sig->ret);
11073 /* clear exception arg */
11074 mono_mb_emit_ldarg (mb, param_count - 1);
11075 mono_mb_emit_byte (mb, CEE_LDNULL);
11076 mono_mb_emit_byte (mb, CEE_STIND_REF);
11079 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11080 clause->try_offset = mono_mb_get_label (mb);
11082 /* push method's args */
11083 for (i = 0; i < param_count - 1; i++) {
11087 mono_mb_emit_ldarg (mb, i);
11089 /* get the byval type of the param */
11090 klass = mono_class_from_mono_type (csig->params [i]);
11091 type = &klass->byval_arg;
11093 /* unbox struct args */
11094 if (MONO_TYPE_ISSTRUCT (type)) {
11095 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11097 /* byref args & and the "this" arg must remain a ptr.
11098 Otherwise make a copy of the value type */
11099 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11100 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11102 csig->params [i] = &mono_defaults.object_class->byval_arg;
11107 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11108 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11110 mono_mb_emit_op (mb, CEE_CALL, method);
11112 /* save result at local 1 */
11113 if (!MONO_TYPE_IS_VOID (sig->ret))
11114 mono_mb_emit_stloc (mb, 1);
11116 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11119 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11120 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11121 clause->data.catch_class = mono_defaults.object_class;
11123 clause->handler_offset = mono_mb_get_label (mb);
11125 /* store exception at local 0 */
11126 mono_mb_emit_stloc (mb, 0);
11127 mono_mb_emit_ldarg (mb, param_count - 1);
11128 mono_mb_emit_ldloc (mb, 0);
11129 mono_mb_emit_byte (mb, CEE_STIND_REF);
11130 mono_mb_emit_branch (mb, CEE_LEAVE);
11132 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11134 mono_mb_set_clauses (mb, 1, clause);
11136 mono_mb_patch_branch (mb, pos_leave);
11139 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11140 mono_mb_emit_ldloc (mb, 1);
11142 /* box the return value */
11143 if (MONO_TYPE_ISSTRUCT (sig->ret))
11144 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11147 mono_mb_emit_byte (mb, CEE_RET);
11150 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11157 * mono_marshal_free_dynamic_wrappers:
11159 * Free wrappers of the dynamic method METHOD.
11162 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11164 MonoImage *image = method->klass->image;
11166 g_assert (method_is_dynamic (method));
11168 /* This could be called during shutdown */
11169 if (marshal_mutex_initialized)
11170 mono_marshal_lock ();
11172 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11173 * they could be shared with other methods ?
11175 if (image->runtime_invoke_direct_cache)
11176 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11177 if (image->delegate_abstract_invoke_cache)
11178 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11179 // FIXME: Need to clear the caches in other images as well
11180 if (image->delegate_bound_static_invoke_cache)
11181 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11183 if (marshal_mutex_initialized)
11184 mono_marshal_unlock ();
11188 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11190 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11191 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11193 return mono_metadata_signature_equal (pair->sig, sig);
11197 * mono_marshal_free_inflated_wrappers:
11199 * Free wrappers of the inflated method METHOD.
11202 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11204 MonoMethodSignature *sig = method->signature;
11206 g_assert (method->is_inflated);
11208 /* Ignore calls occuring late during cleanup. */
11209 if (!marshal_mutex_initialized)
11212 mono_marshal_lock ();
11214 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11215 * they could be shared with other methods ?
11219 * indexed by MonoMethodSignature
11221 /* FIXME: This could remove unrelated wrappers as well */
11222 if (sig && method->klass->image->delegate_begin_invoke_cache)
11223 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11224 if (sig && method->klass->image->delegate_end_invoke_cache)
11225 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11226 if (sig && method->klass->image->delegate_invoke_cache)
11227 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11228 if (sig && method->klass->image->runtime_invoke_cache)
11229 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11230 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11231 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11234 * indexed by SignaturePointerPair
11236 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11237 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11238 signature_pointer_pair_matches_signature, (gpointer)sig);
11241 * indexed by MonoMethod pointers
11243 if (method->klass->image->runtime_invoke_direct_cache)
11244 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11245 if (method->klass->image->managed_wrapper_cache)
11246 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11247 if (method->klass->image->native_wrapper_cache)
11248 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11249 if (method->klass->image->remoting_invoke_cache)
11250 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11251 if (method->klass->image->synchronized_cache)
11252 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11253 if (method->klass->image->unbox_wrapper_cache)
11254 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11255 if (method->klass->image->cominterop_invoke_cache)
11256 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11257 if (method->klass->image->cominterop_wrapper_cache)
11258 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11259 if (method->klass->image->thunk_invoke_cache)
11260 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11261 if (method->klass->image->native_func_wrapper_aot_cache)
11262 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11264 mono_marshal_unlock ();